* [PATCH 00/44] devm_drm_dev_alloc, no more drmm_add_final_kfree
@ 2020-04-03 13:57 ` Daniel Vetter
0 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:57 UTC (permalink / raw)
To: DRI Development; +Cc: Daniel Vetter, Intel Graphics Development
Hi all,
Here's the promised follow-up to get rid of the drmm_add_final_kfree calls
from drivers. I've also sprinkled in a bunch of cleanups for the drivers
I've had to touch anyway. I think with devm_drm_dev_alloc we now have a
very neat and clean way to init the drm_device, and all the interim stage
with drm_dev_init and devm_drm_dev_init are unexported.
For reading, documenation changes are all concentrated in the last patch,
because the interim state would result in way too much shuffling and
readjusting.
The driver core patch is only required for vkms, vgem and i915/selftest
patches, everything else only needs the patch to add devm_drm_dev_alloc.
Once that's landed we can merge driver patches in any order, only the
final patch needs to wait until everything has landed.
As usual, review, testing and comments very much appreciated.
Cheers, Daniel
Daniel Vetter (44):
drivers/base: Always release devres on device_del
drm: Add devm_drm_dev_alloc macro
drm/device: Deprecate dev_private harder
drm/vgem: Use devm_drm_dev_alloc
drm/vkms: Use devm_drm_dev_alloc
drm/vboxvideo: drop DRM_MTRR_WC #define
drm/vboxvideo: Use devm_drm_dev_alloc
drm/vboxvideo: Stop using drm_device->dev_private
drm/vboxvidoe: use managed pci functions
drm/vboxvideo: Use devm_gen_pool_create
drm/v3d: Don't set drm_device->dev_private
drm/v3d: Use devm_drm_dev_alloc
drm/v3d: Delete v3d_dev->dev
drm/v3d: Delete v3d_dev->pdev
drm/udl: Use demv_drm_dev_alloc
drm/udl: don't set drm_device->dev_private
drm/st7735r: Use devm_drm_dev_alloc
drm/st7586: Use devm_drm_dev_alloc
drm/repaper: Use devm_drm_dev_alloc
drm/mi0283qt: Use devm_drm_dev_alloc
drm/ili9486: Use devm_drm_dev_alloc
drm/ili9341: Use devm_drm_dev_alloc
drm/ili9225: Use devm_drm_dev_alloc
drm/hx8357d: Use devm_drm_dev_alloc
drm/gm12u320: Use devm_drm_dev_alloc
drm/gm12u320: Don't use drm_device->dev_private
drm/tidss: Use devm_drm_dev_alloc
drm/tidss: Don't use drm_device->dev_private
drm/tidss: Delete tidss->saved_state
drm/qxl: Use devm_drm_dev_alloc
drm/qxl: Don't use drm_device->dev_private
drm/mcde: Use devm_drm_dev_alloc
drm/mcde: Don't use drm_device->dev_private
drm/ingenic: Use devm_drm_dev_alloc
drm/ingenic: Don't set drm_device->dev_private
drm/komeda: use devm_drm_dev_alloc
drm/armada: Use devm_drm_dev_alloc
drm/armada: Don't use drm_device->dev_private
drm/cirrus: Use devm_drm_dev_alloc
drm/cirrus: Don't use drm_device->dev_private
drm/i915: Use devm_drm_dev_alloc
drm/i915/selftest: Create mock_destroy_device
drm/i915/selftests: align more to real device lifetimes
drm/managed: Cleanup of unused functions and polishing docs
.../driver-api/driver-model/devres.rst | 2 +-
drivers/base/dd.c | 2 +
.../gpu/drm/arm/display/komeda/komeda_kms.c | 16 +-
drivers/gpu/drm/armada/armada_crtc.c | 4 +-
drivers/gpu/drm/armada/armada_debugfs.c | 2 +-
drivers/gpu/drm/armada/armada_drm.h | 2 +
drivers/gpu/drm/armada/armada_drv.c | 30 +---
drivers/gpu/drm/armada/armada_fbdev.c | 4 +-
drivers/gpu/drm/armada/armada_gem.c | 4 +-
drivers/gpu/drm/armada/armada_overlay.c | 8 +-
drivers/gpu/drm/cirrus/cirrus.c | 22 ++-
drivers/gpu/drm/drm_drv.c | 142 ++++++------------
drivers/gpu/drm/drm_internal.h | 1 +
drivers/gpu/drm/drm_managed.c | 15 +-
.../gpu/drm/i915/gem/selftests/huge_pages.c | 2 +-
.../drm/i915/gem/selftests/i915_gem_context.c | 2 +-
.../drm/i915/gem/selftests/i915_gem_dmabuf.c | 2 +-
.../drm/i915/gem/selftests/i915_gem_object.c | 2 +-
.../drm/i915/gem/selftests/i915_gem_phys.c | 2 +-
drivers/gpu/drm/i915/gt/selftest_timeline.c | 2 +-
drivers/gpu/drm/i915/i915_drv.c | 17 +--
drivers/gpu/drm/i915/i915_pci.c | 2 -
.../gpu/drm/i915/selftests/i915_gem_evict.c | 2 +-
drivers/gpu/drm/i915/selftests/i915_gem_gtt.c | 2 +-
drivers/gpu/drm/i915/selftests/i915_request.c | 2 +-
drivers/gpu/drm/i915/selftests/i915_vma.c | 2 +-
.../drm/i915/selftests/intel_memory_region.c | 2 +-
.../gpu/drm/i915/selftests/mock_gem_device.c | 33 ++--
.../gpu/drm/i915/selftests/mock_gem_device.h | 5 +
drivers/gpu/drm/ingenic/ingenic-drm.c | 15 +-
drivers/gpu/drm/mcde/mcde_display.c | 10 +-
drivers/gpu/drm/mcde/mcde_drm.h | 2 +
drivers/gpu/drm/mcde/mcde_drv.c | 21 +--
drivers/gpu/drm/mcde/mcde_dsi.c | 2 +-
drivers/gpu/drm/qxl/qxl_debugfs.c | 7 +-
drivers/gpu/drm/qxl/qxl_display.c | 32 ++--
drivers/gpu/drm/qxl/qxl_drv.c | 23 +--
drivers/gpu/drm/qxl/qxl_drv.h | 7 +-
drivers/gpu/drm/qxl/qxl_dumb.c | 2 +-
drivers/gpu/drm/qxl/qxl_gem.c | 2 +-
drivers/gpu/drm/qxl/qxl_ioctl.c | 14 +-
drivers/gpu/drm/qxl/qxl_irq.c | 2 +-
drivers/gpu/drm/qxl/qxl_kms.c | 13 +-
drivers/gpu/drm/qxl/qxl_object.c | 2 +-
drivers/gpu/drm/qxl/qxl_release.c | 2 +-
drivers/gpu/drm/qxl/qxl_ttm.c | 2 +-
drivers/gpu/drm/tidss/tidss_crtc.c | 16 +-
drivers/gpu/drm/tidss/tidss_drv.c | 17 +--
drivers/gpu/drm/tidss/tidss_drv.h | 4 +-
drivers/gpu/drm/tidss/tidss_irq.c | 12 +-
drivers/gpu/drm/tidss/tidss_kms.c | 2 +-
drivers/gpu/drm/tidss/tidss_plane.c | 6 +-
drivers/gpu/drm/tiny/gm12u320.c | 24 ++-
drivers/gpu/drm/tiny/hx8357d.c | 13 +-
drivers/gpu/drm/tiny/ili9225.c | 13 +-
drivers/gpu/drm/tiny/ili9341.c | 13 +-
drivers/gpu/drm/tiny/ili9486.c | 13 +-
drivers/gpu/drm/tiny/mi0283qt.c | 13 +-
drivers/gpu/drm/tiny/repaper.c | 14 +-
drivers/gpu/drm/tiny/st7586.c | 13 +-
drivers/gpu/drm/tiny/st7735r.c | 13 +-
drivers/gpu/drm/udl/udl_connector.c | 4 +-
drivers/gpu/drm/udl/udl_drv.c | 37 ++---
drivers/gpu/drm/udl/udl_modeset.c | 6 +-
drivers/gpu/drm/v3d/v3d_debugfs.c | 12 +-
drivers/gpu/drm/v3d/v3d_drv.c | 47 +++---
drivers/gpu/drm/v3d/v3d_drv.h | 7 +-
drivers/gpu/drm/v3d/v3d_gem.c | 17 ++-
drivers/gpu/drm/v3d/v3d_irq.c | 16 +-
drivers/gpu/drm/v3d/v3d_mmu.c | 10 +-
drivers/gpu/drm/v3d/v3d_sched.c | 10 +-
drivers/gpu/drm/vboxvideo/vbox_drv.c | 26 +---
drivers/gpu/drm/vboxvideo/vbox_drv.h | 1 +
drivers/gpu/drm/vboxvideo/vbox_irq.c | 2 +-
drivers/gpu/drm/vboxvideo/vbox_main.c | 29 ++--
drivers/gpu/drm/vboxvideo/vbox_mode.c | 10 +-
drivers/gpu/drm/vboxvideo/vbox_ttm.c | 12 --
drivers/gpu/drm/vgem/vgem_drv.c | 51 ++-----
drivers/gpu/drm/vkms/vkms_drv.c | 48 ++----
include/drm/drm_device.h | 9 +-
include/drm/drm_drv.h | 51 +++++--
81 files changed, 422 insertions(+), 660 deletions(-)
--
2.25.1
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 262+ messages in thread
* [Intel-gfx] [PATCH 00/44] devm_drm_dev_alloc, no more drmm_add_final_kfree
@ 2020-04-03 13:57 ` Daniel Vetter
0 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:57 UTC (permalink / raw)
To: DRI Development; +Cc: Daniel Vetter, Intel Graphics Development
Hi all,
Here's the promised follow-up to get rid of the drmm_add_final_kfree calls
from drivers. I've also sprinkled in a bunch of cleanups for the drivers
I've had to touch anyway. I think with devm_drm_dev_alloc we now have a
very neat and clean way to init the drm_device, and all the interim stage
with drm_dev_init and devm_drm_dev_init are unexported.
For reading, documenation changes are all concentrated in the last patch,
because the interim state would result in way too much shuffling and
readjusting.
The driver core patch is only required for vkms, vgem and i915/selftest
patches, everything else only needs the patch to add devm_drm_dev_alloc.
Once that's landed we can merge driver patches in any order, only the
final patch needs to wait until everything has landed.
As usual, review, testing and comments very much appreciated.
Cheers, Daniel
Daniel Vetter (44):
drivers/base: Always release devres on device_del
drm: Add devm_drm_dev_alloc macro
drm/device: Deprecate dev_private harder
drm/vgem: Use devm_drm_dev_alloc
drm/vkms: Use devm_drm_dev_alloc
drm/vboxvideo: drop DRM_MTRR_WC #define
drm/vboxvideo: Use devm_drm_dev_alloc
drm/vboxvideo: Stop using drm_device->dev_private
drm/vboxvidoe: use managed pci functions
drm/vboxvideo: Use devm_gen_pool_create
drm/v3d: Don't set drm_device->dev_private
drm/v3d: Use devm_drm_dev_alloc
drm/v3d: Delete v3d_dev->dev
drm/v3d: Delete v3d_dev->pdev
drm/udl: Use demv_drm_dev_alloc
drm/udl: don't set drm_device->dev_private
drm/st7735r: Use devm_drm_dev_alloc
drm/st7586: Use devm_drm_dev_alloc
drm/repaper: Use devm_drm_dev_alloc
drm/mi0283qt: Use devm_drm_dev_alloc
drm/ili9486: Use devm_drm_dev_alloc
drm/ili9341: Use devm_drm_dev_alloc
drm/ili9225: Use devm_drm_dev_alloc
drm/hx8357d: Use devm_drm_dev_alloc
drm/gm12u320: Use devm_drm_dev_alloc
drm/gm12u320: Don't use drm_device->dev_private
drm/tidss: Use devm_drm_dev_alloc
drm/tidss: Don't use drm_device->dev_private
drm/tidss: Delete tidss->saved_state
drm/qxl: Use devm_drm_dev_alloc
drm/qxl: Don't use drm_device->dev_private
drm/mcde: Use devm_drm_dev_alloc
drm/mcde: Don't use drm_device->dev_private
drm/ingenic: Use devm_drm_dev_alloc
drm/ingenic: Don't set drm_device->dev_private
drm/komeda: use devm_drm_dev_alloc
drm/armada: Use devm_drm_dev_alloc
drm/armada: Don't use drm_device->dev_private
drm/cirrus: Use devm_drm_dev_alloc
drm/cirrus: Don't use drm_device->dev_private
drm/i915: Use devm_drm_dev_alloc
drm/i915/selftest: Create mock_destroy_device
drm/i915/selftests: align more to real device lifetimes
drm/managed: Cleanup of unused functions and polishing docs
.../driver-api/driver-model/devres.rst | 2 +-
drivers/base/dd.c | 2 +
.../gpu/drm/arm/display/komeda/komeda_kms.c | 16 +-
drivers/gpu/drm/armada/armada_crtc.c | 4 +-
drivers/gpu/drm/armada/armada_debugfs.c | 2 +-
drivers/gpu/drm/armada/armada_drm.h | 2 +
drivers/gpu/drm/armada/armada_drv.c | 30 +---
drivers/gpu/drm/armada/armada_fbdev.c | 4 +-
drivers/gpu/drm/armada/armada_gem.c | 4 +-
drivers/gpu/drm/armada/armada_overlay.c | 8 +-
drivers/gpu/drm/cirrus/cirrus.c | 22 ++-
drivers/gpu/drm/drm_drv.c | 142 ++++++------------
drivers/gpu/drm/drm_internal.h | 1 +
drivers/gpu/drm/drm_managed.c | 15 +-
.../gpu/drm/i915/gem/selftests/huge_pages.c | 2 +-
.../drm/i915/gem/selftests/i915_gem_context.c | 2 +-
.../drm/i915/gem/selftests/i915_gem_dmabuf.c | 2 +-
.../drm/i915/gem/selftests/i915_gem_object.c | 2 +-
.../drm/i915/gem/selftests/i915_gem_phys.c | 2 +-
drivers/gpu/drm/i915/gt/selftest_timeline.c | 2 +-
drivers/gpu/drm/i915/i915_drv.c | 17 +--
drivers/gpu/drm/i915/i915_pci.c | 2 -
.../gpu/drm/i915/selftests/i915_gem_evict.c | 2 +-
drivers/gpu/drm/i915/selftests/i915_gem_gtt.c | 2 +-
drivers/gpu/drm/i915/selftests/i915_request.c | 2 +-
drivers/gpu/drm/i915/selftests/i915_vma.c | 2 +-
.../drm/i915/selftests/intel_memory_region.c | 2 +-
.../gpu/drm/i915/selftests/mock_gem_device.c | 33 ++--
.../gpu/drm/i915/selftests/mock_gem_device.h | 5 +
drivers/gpu/drm/ingenic/ingenic-drm.c | 15 +-
drivers/gpu/drm/mcde/mcde_display.c | 10 +-
drivers/gpu/drm/mcde/mcde_drm.h | 2 +
drivers/gpu/drm/mcde/mcde_drv.c | 21 +--
drivers/gpu/drm/mcde/mcde_dsi.c | 2 +-
drivers/gpu/drm/qxl/qxl_debugfs.c | 7 +-
drivers/gpu/drm/qxl/qxl_display.c | 32 ++--
drivers/gpu/drm/qxl/qxl_drv.c | 23 +--
drivers/gpu/drm/qxl/qxl_drv.h | 7 +-
drivers/gpu/drm/qxl/qxl_dumb.c | 2 +-
drivers/gpu/drm/qxl/qxl_gem.c | 2 +-
drivers/gpu/drm/qxl/qxl_ioctl.c | 14 +-
drivers/gpu/drm/qxl/qxl_irq.c | 2 +-
drivers/gpu/drm/qxl/qxl_kms.c | 13 +-
drivers/gpu/drm/qxl/qxl_object.c | 2 +-
drivers/gpu/drm/qxl/qxl_release.c | 2 +-
drivers/gpu/drm/qxl/qxl_ttm.c | 2 +-
drivers/gpu/drm/tidss/tidss_crtc.c | 16 +-
drivers/gpu/drm/tidss/tidss_drv.c | 17 +--
drivers/gpu/drm/tidss/tidss_drv.h | 4 +-
drivers/gpu/drm/tidss/tidss_irq.c | 12 +-
drivers/gpu/drm/tidss/tidss_kms.c | 2 +-
drivers/gpu/drm/tidss/tidss_plane.c | 6 +-
drivers/gpu/drm/tiny/gm12u320.c | 24 ++-
drivers/gpu/drm/tiny/hx8357d.c | 13 +-
drivers/gpu/drm/tiny/ili9225.c | 13 +-
drivers/gpu/drm/tiny/ili9341.c | 13 +-
drivers/gpu/drm/tiny/ili9486.c | 13 +-
drivers/gpu/drm/tiny/mi0283qt.c | 13 +-
drivers/gpu/drm/tiny/repaper.c | 14 +-
drivers/gpu/drm/tiny/st7586.c | 13 +-
drivers/gpu/drm/tiny/st7735r.c | 13 +-
drivers/gpu/drm/udl/udl_connector.c | 4 +-
drivers/gpu/drm/udl/udl_drv.c | 37 ++---
drivers/gpu/drm/udl/udl_modeset.c | 6 +-
drivers/gpu/drm/v3d/v3d_debugfs.c | 12 +-
drivers/gpu/drm/v3d/v3d_drv.c | 47 +++---
drivers/gpu/drm/v3d/v3d_drv.h | 7 +-
drivers/gpu/drm/v3d/v3d_gem.c | 17 ++-
drivers/gpu/drm/v3d/v3d_irq.c | 16 +-
drivers/gpu/drm/v3d/v3d_mmu.c | 10 +-
drivers/gpu/drm/v3d/v3d_sched.c | 10 +-
drivers/gpu/drm/vboxvideo/vbox_drv.c | 26 +---
drivers/gpu/drm/vboxvideo/vbox_drv.h | 1 +
drivers/gpu/drm/vboxvideo/vbox_irq.c | 2 +-
drivers/gpu/drm/vboxvideo/vbox_main.c | 29 ++--
drivers/gpu/drm/vboxvideo/vbox_mode.c | 10 +-
drivers/gpu/drm/vboxvideo/vbox_ttm.c | 12 --
drivers/gpu/drm/vgem/vgem_drv.c | 51 ++-----
drivers/gpu/drm/vkms/vkms_drv.c | 48 ++----
include/drm/drm_device.h | 9 +-
include/drm/drm_drv.h | 51 +++++--
81 files changed, 422 insertions(+), 660 deletions(-)
--
2.25.1
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply [flat|nested] 262+ messages in thread
* [PATCH 01/44] drivers/base: Always release devres on device_del
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-03 13:57 ` Daniel Vetter
-1 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:57 UTC (permalink / raw)
To: DRI Development
Cc: Daniel Vetter, Intel Graphics Development, Rafael J. Wysocki,
Greg Kroah-Hartman, Daniel Vetter
In drm we've added nice drm_device (the main gpu driver thing, which
also represents the userspace interfaces and has everything else
dangling off it) init functions using devres, devm_drm_dev_init and
soon devm_drm_dev_alloc (this patch series adds that).
A slight trouble is that drm_device itself holds a reference on the
struct device it's sitting on top (for sysfs links and dmesg debug and
lots of other things), so there's a reference loop. For real drivers
this is broken at remove/unplug time, where all devres resources are
released device_release_driver(), before the final device reference is
dropped. So far so good.
There's 2 exceptions:
- drm/vkms|vgem: Virtual drivers for which we create a fake/virtual
platform device to make them look more like normal devices to
userspace. These aren't drivers in the driver model sense, we simple
create a platform_device and register it.
- drm/i915/selftests, where we create minimal mock devices, and again
the selftests aren't proper drivers in the driver model sense.
For these two cases the reference loop isn't broken, because devres is
only cleaned up when the last device reference is dropped. But that's
not happening, because the drm_device holds that last struct device
reference.
Thus far this wasn't a problem since the above cases simply
hand-rolled their cleanup code. But I want to convert all drivers over
to the devm_ versions, hence it would be really nice if these
virtual/fake/mock uses-cases could also be managed with devres
cleanup.
I see three possible approaches:
- Clean up devres from device_del (or platform_device_unregister) even
when no driver is bound. This seems like the simplest solution, but
also the one with the widest impact, and what this patch implements.
We might want to include more of the cleanup than just
devres_release_all, but this is all I need to get my use case going.
- Create a devres group and release that when we unbind. The code in
virtual drivers gets a bit ugly, since every error case has a
different cleanup code until we've chained everything
(platform_device, devres group and then drm_device) together and a
devres_release_group takes care of everything. Doable, but a bit
confusing when I typed it out.
- Convert the virtual drivers to real (in the device model sense)
drivers. Feels like too much boilerplate for not much gain. And
especially with the mock objects minimal mocking is kinda the goal,
to limit the amount of accidentally pulled in code into our unit
tests as much as possible.
Either way I think time to discuss this a bit and figure out what's
the recommended approach here.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: "Rafael J. Wysocki" <rafael@kernel.org>
---
drivers/base/dd.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/base/dd.c b/drivers/base/dd.c
index b25bcab2a26b..1bcfb0ff5f44 100644
--- a/drivers/base/dd.c
+++ b/drivers/base/dd.c
@@ -1155,6 +1155,8 @@ static void __device_release_driver(struct device *dev, struct device *parent)
dev);
kobject_uevent(&dev->kobj, KOBJ_UNBIND);
+ } else {
+ devres_release_all(dev);
}
}
--
2.25.1
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [Intel-gfx] [PATCH 01/44] drivers/base: Always release devres on device_del
@ 2020-04-03 13:57 ` Daniel Vetter
0 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:57 UTC (permalink / raw)
To: DRI Development
Cc: Daniel Vetter, Intel Graphics Development, Rafael J. Wysocki,
Greg Kroah-Hartman, Daniel Vetter
In drm we've added nice drm_device (the main gpu driver thing, which
also represents the userspace interfaces and has everything else
dangling off it) init functions using devres, devm_drm_dev_init and
soon devm_drm_dev_alloc (this patch series adds that).
A slight trouble is that drm_device itself holds a reference on the
struct device it's sitting on top (for sysfs links and dmesg debug and
lots of other things), so there's a reference loop. For real drivers
this is broken at remove/unplug time, where all devres resources are
released device_release_driver(), before the final device reference is
dropped. So far so good.
There's 2 exceptions:
- drm/vkms|vgem: Virtual drivers for which we create a fake/virtual
platform device to make them look more like normal devices to
userspace. These aren't drivers in the driver model sense, we simple
create a platform_device and register it.
- drm/i915/selftests, where we create minimal mock devices, and again
the selftests aren't proper drivers in the driver model sense.
For these two cases the reference loop isn't broken, because devres is
only cleaned up when the last device reference is dropped. But that's
not happening, because the drm_device holds that last struct device
reference.
Thus far this wasn't a problem since the above cases simply
hand-rolled their cleanup code. But I want to convert all drivers over
to the devm_ versions, hence it would be really nice if these
virtual/fake/mock uses-cases could also be managed with devres
cleanup.
I see three possible approaches:
- Clean up devres from device_del (or platform_device_unregister) even
when no driver is bound. This seems like the simplest solution, but
also the one with the widest impact, and what this patch implements.
We might want to include more of the cleanup than just
devres_release_all, but this is all I need to get my use case going.
- Create a devres group and release that when we unbind. The code in
virtual drivers gets a bit ugly, since every error case has a
different cleanup code until we've chained everything
(platform_device, devres group and then drm_device) together and a
devres_release_group takes care of everything. Doable, but a bit
confusing when I typed it out.
- Convert the virtual drivers to real (in the device model sense)
drivers. Feels like too much boilerplate for not much gain. And
especially with the mock objects minimal mocking is kinda the goal,
to limit the amount of accidentally pulled in code into our unit
tests as much as possible.
Either way I think time to discuss this a bit and figure out what's
the recommended approach here.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: "Rafael J. Wysocki" <rafael@kernel.org>
---
drivers/base/dd.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/base/dd.c b/drivers/base/dd.c
index b25bcab2a26b..1bcfb0ff5f44 100644
--- a/drivers/base/dd.c
+++ b/drivers/base/dd.c
@@ -1155,6 +1155,8 @@ static void __device_release_driver(struct device *dev, struct device *parent)
dev);
kobject_uevent(&dev->kobj, KOBJ_UNBIND);
+ } else {
+ devres_release_all(dev);
}
}
--
2.25.1
_______________________________________________
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Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [PATCH 02/44] drm: Add devm_drm_dev_alloc macro
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-03 13:57 ` Daniel Vetter
-1 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:57 UTC (permalink / raw)
To: DRI Development
Cc: Paul Kocialkowski, Daniel Vetter, Intel Graphics Development,
Laurent Pinchart, Daniel Vetter
The kerneldoc is only added for this new function. Existing kerneldoc
and examples will be udated at the very end, since once all drivers
are converted over to devm_drm_dev_alloc we can unexport a lot of
interim functions and make the documentation for driver authors a lot
cleaner and less confusing. There will be only one true way to
initialize a drm_device at the end of this, which is going to be
devm_drm_dev_alloc.
Cc: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
---
drivers/gpu/drm/drm_drv.c | 23 +++++++++++++++++++++++
include/drm/drm_drv.h | 33 +++++++++++++++++++++++++++++++++
2 files changed, 56 insertions(+)
diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c
index 1bb4f636b83c..9e60b784b3ac 100644
--- a/drivers/gpu/drm/drm_drv.c
+++ b/drivers/gpu/drm/drm_drv.c
@@ -739,6 +739,29 @@ int devm_drm_dev_init(struct device *parent,
}
EXPORT_SYMBOL(devm_drm_dev_init);
+void* __devm_drm_dev_alloc(struct device *parent, struct drm_driver *driver,
+ size_t size, size_t offset)
+{
+ void *container;
+ struct drm_device *drm;
+ int ret;
+
+ container = kzalloc(size, GFP_KERNEL);
+ if (!container)
+ return ERR_PTR(-ENOMEM);
+
+ drm = container + offset;
+ ret = devm_drm_dev_init(parent, drm, driver);
+ if (ret) {
+ kfree(container);
+ return ERR_PTR(ret);
+ }
+ drmm_add_final_kfree(drm, container);
+
+ return container;
+}
+EXPORT_SYMBOL(__devm_drm_dev_alloc);
+
/**
* drm_dev_alloc - Allocate new DRM device
* @driver: DRM driver to allocate device for
diff --git a/include/drm/drm_drv.h b/include/drm/drm_drv.h
index e7c6ea261ed1..26776be5a21e 100644
--- a/include/drm/drm_drv.h
+++ b/include/drm/drm_drv.h
@@ -626,6 +626,39 @@ int devm_drm_dev_init(struct device *parent,
struct drm_device *dev,
struct drm_driver *driver);
+void* __devm_drm_dev_alloc(struct device *parent, struct drm_driver *driver,
+ size_t size, size_t offset);
+
+/**
+ * devm_drm_dev_alloc - Resource managed allocation of a &drm_device instance
+ * @parent: Parent device object
+ * @driver: DRM driver
+ * @type: the type of the struct which contains struct &drm_device
+ * @member: the name of the &drm_device within @type.
+ *
+ * This allocates and initialize a new DRM device. No device registration is done.
+ * Call drm_dev_register() to advertice the device to user space and register it
+ * with other core subsystems. This should be done last in the device
+ * initialization sequence to make sure userspace can't access an inconsistent
+ * state.
+ *
+ * The initial ref-count of the object is 1. Use drm_dev_get() and
+ * drm_dev_put() to take and drop further ref-counts.
+ *
+ * It is recommended that drivers embed &struct drm_device into their own device
+ * structure.
+ *
+ * Note that this manages the lifetime of the resulting &drm_device
+ * automatically using devres. The DRM device initialized with this function is
+ * automatically put on driver detach using drm_dev_put().
+ *
+ * RETURNS:
+ * Pointer to new DRM device, or ERR_PTR on failure.
+ */
+#define devm_drm_dev_alloc(parent, driver, type, member) \
+ ((type *) __devm_drm_dev_alloc(parent, driver, sizeof(type), \
+ offsetof(type, member)))
+
struct drm_device *drm_dev_alloc(struct drm_driver *driver,
struct device *parent);
int drm_dev_register(struct drm_device *dev, unsigned long flags);
--
2.25.1
_______________________________________________
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dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [Intel-gfx] [PATCH 02/44] drm: Add devm_drm_dev_alloc macro
@ 2020-04-03 13:57 ` Daniel Vetter
0 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:57 UTC (permalink / raw)
To: DRI Development
Cc: Paul Kocialkowski, Daniel Vetter, Intel Graphics Development,
Laurent Pinchart, Daniel Vetter
The kerneldoc is only added for this new function. Existing kerneldoc
and examples will be udated at the very end, since once all drivers
are converted over to devm_drm_dev_alloc we can unexport a lot of
interim functions and make the documentation for driver authors a lot
cleaner and less confusing. There will be only one true way to
initialize a drm_device at the end of this, which is going to be
devm_drm_dev_alloc.
Cc: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
---
drivers/gpu/drm/drm_drv.c | 23 +++++++++++++++++++++++
include/drm/drm_drv.h | 33 +++++++++++++++++++++++++++++++++
2 files changed, 56 insertions(+)
diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c
index 1bb4f636b83c..9e60b784b3ac 100644
--- a/drivers/gpu/drm/drm_drv.c
+++ b/drivers/gpu/drm/drm_drv.c
@@ -739,6 +739,29 @@ int devm_drm_dev_init(struct device *parent,
}
EXPORT_SYMBOL(devm_drm_dev_init);
+void* __devm_drm_dev_alloc(struct device *parent, struct drm_driver *driver,
+ size_t size, size_t offset)
+{
+ void *container;
+ struct drm_device *drm;
+ int ret;
+
+ container = kzalloc(size, GFP_KERNEL);
+ if (!container)
+ return ERR_PTR(-ENOMEM);
+
+ drm = container + offset;
+ ret = devm_drm_dev_init(parent, drm, driver);
+ if (ret) {
+ kfree(container);
+ return ERR_PTR(ret);
+ }
+ drmm_add_final_kfree(drm, container);
+
+ return container;
+}
+EXPORT_SYMBOL(__devm_drm_dev_alloc);
+
/**
* drm_dev_alloc - Allocate new DRM device
* @driver: DRM driver to allocate device for
diff --git a/include/drm/drm_drv.h b/include/drm/drm_drv.h
index e7c6ea261ed1..26776be5a21e 100644
--- a/include/drm/drm_drv.h
+++ b/include/drm/drm_drv.h
@@ -626,6 +626,39 @@ int devm_drm_dev_init(struct device *parent,
struct drm_device *dev,
struct drm_driver *driver);
+void* __devm_drm_dev_alloc(struct device *parent, struct drm_driver *driver,
+ size_t size, size_t offset);
+
+/**
+ * devm_drm_dev_alloc - Resource managed allocation of a &drm_device instance
+ * @parent: Parent device object
+ * @driver: DRM driver
+ * @type: the type of the struct which contains struct &drm_device
+ * @member: the name of the &drm_device within @type.
+ *
+ * This allocates and initialize a new DRM device. No device registration is done.
+ * Call drm_dev_register() to advertice the device to user space and register it
+ * with other core subsystems. This should be done last in the device
+ * initialization sequence to make sure userspace can't access an inconsistent
+ * state.
+ *
+ * The initial ref-count of the object is 1. Use drm_dev_get() and
+ * drm_dev_put() to take and drop further ref-counts.
+ *
+ * It is recommended that drivers embed &struct drm_device into their own device
+ * structure.
+ *
+ * Note that this manages the lifetime of the resulting &drm_device
+ * automatically using devres. The DRM device initialized with this function is
+ * automatically put on driver detach using drm_dev_put().
+ *
+ * RETURNS:
+ * Pointer to new DRM device, or ERR_PTR on failure.
+ */
+#define devm_drm_dev_alloc(parent, driver, type, member) \
+ ((type *) __devm_drm_dev_alloc(parent, driver, sizeof(type), \
+ offsetof(type, member)))
+
struct drm_device *drm_dev_alloc(struct drm_driver *driver,
struct device *parent);
int drm_dev_register(struct drm_device *dev, unsigned long flags);
--
2.25.1
_______________________________________________
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Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [PATCH 03/44] drm/device: Deprecate dev_private harder
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-03 13:57 ` Daniel Vetter
-1 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:57 UTC (permalink / raw)
To: DRI Development; +Cc: Daniel Vetter, Intel Graphics Development, Daniel Vetter
We've had lots of conversions to embeddeding, but didn't stop using
->dev_private. Which defeats the point of this.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
---
include/drm/drm_device.h | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/include/drm/drm_device.h b/include/drm/drm_device.h
index d39132b477dd..a55874db9dd4 100644
--- a/include/drm/drm_device.h
+++ b/include/drm/drm_device.h
@@ -88,9 +88,12 @@ struct drm_device {
/**
* @dev_private:
*
- * DRM driver private data. Instead of using this pointer it is
- * recommended that drivers use drm_dev_init() and embed struct
- * &drm_device in their larger per-device structure.
+ * DRM driver private data. This is deprecated and should be left set to
+ * NULL.
+ *
+ * Instead of using this pointer it is recommended that drivers use
+ * drm_dev_init() and embed struct &drm_device in their larger
+ * per-device structure.
*/
void *dev_private;
--
2.25.1
_______________________________________________
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dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [Intel-gfx] [PATCH 03/44] drm/device: Deprecate dev_private harder
@ 2020-04-03 13:57 ` Daniel Vetter
0 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:57 UTC (permalink / raw)
To: DRI Development; +Cc: Daniel Vetter, Intel Graphics Development, Daniel Vetter
We've had lots of conversions to embeddeding, but didn't stop using
->dev_private. Which defeats the point of this.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
---
include/drm/drm_device.h | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/include/drm/drm_device.h b/include/drm/drm_device.h
index d39132b477dd..a55874db9dd4 100644
--- a/include/drm/drm_device.h
+++ b/include/drm/drm_device.h
@@ -88,9 +88,12 @@ struct drm_device {
/**
* @dev_private:
*
- * DRM driver private data. Instead of using this pointer it is
- * recommended that drivers use drm_dev_init() and embed struct
- * &drm_device in their larger per-device structure.
+ * DRM driver private data. This is deprecated and should be left set to
+ * NULL.
+ *
+ * Instead of using this pointer it is recommended that drivers use
+ * drm_dev_init() and embed struct &drm_device in their larger
+ * per-device structure.
*/
void *dev_private;
--
2.25.1
_______________________________________________
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Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [PATCH 04/44] drm/vgem: Use devm_drm_dev_alloc
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-03 13:57 ` Daniel Vetter
-1 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:57 UTC (permalink / raw)
To: DRI Development
Cc: Rob Clark, Daniel Vetter, Intel Graphics Development,
Chris Wilson, Sean Paul, Sam Ravnborg, Emil Velikov
This means we also need to slightly restructure the exit code, so that
final cleanup of the drm_device is triggered by unregistering the
platform device. Note that devres is both clean up when the driver is
unbound (not the case for vgem, we don't bind), and also when unregistering
the device (very much the case for vgem). Therefore we can rely on devres
even though vgem isn't a proper platform device driver.
This also somewhat untangles the load code, since the drm and platform device
setup are no longer interleaved, but two distinct steps.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Emil Velikov <emil.velikov@collabora.com>
Cc: Sean Paul <seanpaul@chromium.org>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Rob Clark <robdclark@chromium.org>
---
drivers/gpu/drm/vgem/vgem_drv.c | 51 ++++++++++-----------------------
1 file changed, 15 insertions(+), 36 deletions(-)
diff --git a/drivers/gpu/drm/vgem/vgem_drv.c b/drivers/gpu/drm/vgem/vgem_drv.c
index ec1a8ebb6f1b..2ce3b547312a 100644
--- a/drivers/gpu/drm/vgem/vgem_drv.c
+++ b/drivers/gpu/drm/vgem/vgem_drv.c
@@ -427,16 +427,8 @@ static int vgem_prime_mmap(struct drm_gem_object *obj,
return 0;
}
-static void vgem_release(struct drm_device *dev)
-{
- struct vgem_device *vgem = container_of(dev, typeof(*vgem), drm);
-
- platform_device_unregister(vgem->platform);
-}
-
static struct drm_driver vgem_driver = {
.driver_features = DRIVER_GEM | DRIVER_RENDER,
- .release = vgem_release,
.open = vgem_open,
.postclose = vgem_postclose,
.gem_free_object_unlocked = vgem_gem_free_object,
@@ -469,48 +461,35 @@ static struct drm_driver vgem_driver = {
static int __init vgem_init(void)
{
int ret;
+ struct platform_device *pdev;
- vgem_device = kzalloc(sizeof(*vgem_device), GFP_KERNEL);
- if (!vgem_device)
- return -ENOMEM;
-
- vgem_device->platform =
- platform_device_register_simple("vgem", -1, NULL, 0);
- if (IS_ERR(vgem_device->platform)) {
- ret = PTR_ERR(vgem_device->platform);
- goto out_free;
- }
+ pdev = platform_device_register_simple("vgem", -1, NULL, 0);
+ if (IS_ERR(pdev))
+ return PTR_ERR(vgem_device->platform);
- dma_coerce_mask_and_coherent(&vgem_device->platform->dev,
+ dma_coerce_mask_and_coherent(&pdev->dev,
DMA_BIT_MASK(64));
- ret = drm_dev_init(&vgem_device->drm, &vgem_driver,
- &vgem_device->platform->dev);
- if (ret)
- goto out_unregister;
- drmm_add_final_kfree(&vgem_device->drm, vgem_device);
+
+ vgem_device = devm_drm_dev_alloc(&pdev->dev, &vgem_driver,
+ struct vgem_device, drm);
+ if (IS_ERR(vgem_device)) {
+ platform_device_unregister(pdev);
+ return PTR_ERR(vgem_device);
+ }
+ vgem_device->platform = pdev;
/* Final step: expose the device/driver to userspace */
ret = drm_dev_register(&vgem_device->drm, 0);
if (ret)
- goto out_put;
+ return ret;
return 0;
-
-out_put:
- drm_dev_put(&vgem_device->drm);
- return ret;
-
-out_unregister:
- platform_device_unregister(vgem_device->platform);
-out_free:
- kfree(vgem_device);
- return ret;
}
static void __exit vgem_exit(void)
{
drm_dev_unregister(&vgem_device->drm);
- drm_dev_put(&vgem_device->drm);
+ platform_device_unregister(vgem_device->platform);
}
module_init(vgem_init);
--
2.25.1
_______________________________________________
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dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [Intel-gfx] [PATCH 04/44] drm/vgem: Use devm_drm_dev_alloc
@ 2020-04-03 13:57 ` Daniel Vetter
0 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:57 UTC (permalink / raw)
To: DRI Development
Cc: Rob Clark, Daniel Vetter, Intel Graphics Development,
Chris Wilson, Sean Paul, Sam Ravnborg, Emil Velikov
This means we also need to slightly restructure the exit code, so that
final cleanup of the drm_device is triggered by unregistering the
platform device. Note that devres is both clean up when the driver is
unbound (not the case for vgem, we don't bind), and also when unregistering
the device (very much the case for vgem). Therefore we can rely on devres
even though vgem isn't a proper platform device driver.
This also somewhat untangles the load code, since the drm and platform device
setup are no longer interleaved, but two distinct steps.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Emil Velikov <emil.velikov@collabora.com>
Cc: Sean Paul <seanpaul@chromium.org>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Rob Clark <robdclark@chromium.org>
---
drivers/gpu/drm/vgem/vgem_drv.c | 51 ++++++++++-----------------------
1 file changed, 15 insertions(+), 36 deletions(-)
diff --git a/drivers/gpu/drm/vgem/vgem_drv.c b/drivers/gpu/drm/vgem/vgem_drv.c
index ec1a8ebb6f1b..2ce3b547312a 100644
--- a/drivers/gpu/drm/vgem/vgem_drv.c
+++ b/drivers/gpu/drm/vgem/vgem_drv.c
@@ -427,16 +427,8 @@ static int vgem_prime_mmap(struct drm_gem_object *obj,
return 0;
}
-static void vgem_release(struct drm_device *dev)
-{
- struct vgem_device *vgem = container_of(dev, typeof(*vgem), drm);
-
- platform_device_unregister(vgem->platform);
-}
-
static struct drm_driver vgem_driver = {
.driver_features = DRIVER_GEM | DRIVER_RENDER,
- .release = vgem_release,
.open = vgem_open,
.postclose = vgem_postclose,
.gem_free_object_unlocked = vgem_gem_free_object,
@@ -469,48 +461,35 @@ static struct drm_driver vgem_driver = {
static int __init vgem_init(void)
{
int ret;
+ struct platform_device *pdev;
- vgem_device = kzalloc(sizeof(*vgem_device), GFP_KERNEL);
- if (!vgem_device)
- return -ENOMEM;
-
- vgem_device->platform =
- platform_device_register_simple("vgem", -1, NULL, 0);
- if (IS_ERR(vgem_device->platform)) {
- ret = PTR_ERR(vgem_device->platform);
- goto out_free;
- }
+ pdev = platform_device_register_simple("vgem", -1, NULL, 0);
+ if (IS_ERR(pdev))
+ return PTR_ERR(vgem_device->platform);
- dma_coerce_mask_and_coherent(&vgem_device->platform->dev,
+ dma_coerce_mask_and_coherent(&pdev->dev,
DMA_BIT_MASK(64));
- ret = drm_dev_init(&vgem_device->drm, &vgem_driver,
- &vgem_device->platform->dev);
- if (ret)
- goto out_unregister;
- drmm_add_final_kfree(&vgem_device->drm, vgem_device);
+
+ vgem_device = devm_drm_dev_alloc(&pdev->dev, &vgem_driver,
+ struct vgem_device, drm);
+ if (IS_ERR(vgem_device)) {
+ platform_device_unregister(pdev);
+ return PTR_ERR(vgem_device);
+ }
+ vgem_device->platform = pdev;
/* Final step: expose the device/driver to userspace */
ret = drm_dev_register(&vgem_device->drm, 0);
if (ret)
- goto out_put;
+ return ret;
return 0;
-
-out_put:
- drm_dev_put(&vgem_device->drm);
- return ret;
-
-out_unregister:
- platform_device_unregister(vgem_device->platform);
-out_free:
- kfree(vgem_device);
- return ret;
}
static void __exit vgem_exit(void)
{
drm_dev_unregister(&vgem_device->drm);
- drm_dev_put(&vgem_device->drm);
+ platform_device_unregister(vgem_device->platform);
}
module_init(vgem_init);
--
2.25.1
_______________________________________________
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https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [PATCH 05/44] drm/vkms: Use devm_drm_dev_alloc
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-03 13:57 ` Daniel Vetter
-1 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:57 UTC (permalink / raw)
To: DRI Development
Cc: Haneen Mohammed, Rodrigo Siqueira, Daniel Vetter,
Intel Graphics Development, Daniel Vetter
This means we also need to slightly restructure the exit code, so that
final cleanup of the drm_device is triggered by unregistering the
platform device. Note that devres is both clean up when the driver is
unbound (not the case for vkms, we don't bind), and also when unregistering
the device (very much the case for vkms). Therefore we can rely on devres
even though vkms isn't a proper platform device driver.
This also somewhat untangles the load code, since the drm and platform device
setup are no longer interleaved, but two distinct steps.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Rodrigo Siqueira <rodrigosiqueiramelo@gmail.com>
Cc: Haneen Mohammed <hamohammed.sa@gmail.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
---
drivers/gpu/drm/vkms/vkms_drv.c | 48 +++++++++++----------------------
1 file changed, 16 insertions(+), 32 deletions(-)
diff --git a/drivers/gpu/drm/vkms/vkms_drv.c b/drivers/gpu/drm/vkms/vkms_drv.c
index eef85f1a0ce5..fec2a4b91c4d 100644
--- a/drivers/gpu/drm/vkms/vkms_drv.c
+++ b/drivers/gpu/drm/vkms/vkms_drv.c
@@ -61,9 +61,6 @@ static void vkms_release(struct drm_device *dev)
{
struct vkms_device *vkms = container_of(dev, struct vkms_device, drm);
- platform_device_unregister(vkms->platform);
- drm_atomic_helper_shutdown(&vkms->drm);
- drm_mode_config_cleanup(&vkms->drm);
destroy_workqueue(vkms->output.composer_workq);
}
@@ -142,30 +139,26 @@ static int vkms_modeset_init(struct vkms_device *vkmsdev)
static int __init vkms_init(void)
{
int ret;
+ struct platform_device *pdev;
- vkms_device = kzalloc(sizeof(*vkms_device), GFP_KERNEL);
- if (!vkms_device)
- return -ENOMEM;
+ pdev = platform_device_register_simple(DRIVER_NAME, -1, NULL, 0);
+ if (IS_ERR(pdev))
+ return PTR_ERR(pdev);
- vkms_device->platform =
- platform_device_register_simple(DRIVER_NAME, -1, NULL, 0);
- if (IS_ERR(vkms_device->platform)) {
- ret = PTR_ERR(vkms_device->platform);
- goto out_free;
+ vkms_device = devm_drm_dev_alloc(&pdev->dev, &vkms_driver,
+ struct vkms_device, drm);
+ if (IS_ERR(vkms_device)) {
+ platform_device_unregister(pdev);
+ return PTR_ERR(vkms_device);
}
-
- ret = drm_dev_init(&vkms_device->drm, &vkms_driver,
- &vkms_device->platform->dev);
- if (ret)
- goto out_unregister;
- drmm_add_final_kfree(&vkms_device->drm, vkms_device);
+ vkms_device->platform = pdev;
ret = dma_coerce_mask_and_coherent(vkms_device->drm.dev,
DMA_BIT_MASK(64));
if (ret) {
DRM_ERROR("Could not initialize DMA support\n");
- goto out_put;
+ return ret;
}
vkms_device->drm.irq_enabled = true;
@@ -173,28 +166,18 @@ static int __init vkms_init(void)
ret = drm_vblank_init(&vkms_device->drm, 1);
if (ret) {
DRM_ERROR("Failed to vblank\n");
- goto out_put;
+ return ret;
}
ret = vkms_modeset_init(vkms_device);
if (ret)
- goto out_put;
+ return ret;
ret = drm_dev_register(&vkms_device->drm, 0);
if (ret)
- goto out_put;
+ return ret;
return 0;
-
-out_put:
- drm_dev_put(&vkms_device->drm);
- return ret;
-
-out_unregister:
- platform_device_unregister(vkms_device->platform);
-out_free:
- kfree(vkms_device);
- return ret;
}
static void __exit vkms_exit(void)
@@ -205,7 +188,8 @@ static void __exit vkms_exit(void)
}
drm_dev_unregister(&vkms_device->drm);
- drm_dev_put(&vkms_device->drm);
+ drm_atomic_helper_shutdown(&vkms_device->drm);
+ platform_device_unregister(vkms_device->platform);
}
module_init(vkms_init);
--
2.25.1
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^ permalink raw reply related [flat|nested] 262+ messages in thread
* [Intel-gfx] [PATCH 05/44] drm/vkms: Use devm_drm_dev_alloc
@ 2020-04-03 13:57 ` Daniel Vetter
0 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:57 UTC (permalink / raw)
To: DRI Development
Cc: Haneen Mohammed, Rodrigo Siqueira, Daniel Vetter,
Intel Graphics Development, Daniel Vetter
This means we also need to slightly restructure the exit code, so that
final cleanup of the drm_device is triggered by unregistering the
platform device. Note that devres is both clean up when the driver is
unbound (not the case for vkms, we don't bind), and also when unregistering
the device (very much the case for vkms). Therefore we can rely on devres
even though vkms isn't a proper platform device driver.
This also somewhat untangles the load code, since the drm and platform device
setup are no longer interleaved, but two distinct steps.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Rodrigo Siqueira <rodrigosiqueiramelo@gmail.com>
Cc: Haneen Mohammed <hamohammed.sa@gmail.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
---
drivers/gpu/drm/vkms/vkms_drv.c | 48 +++++++++++----------------------
1 file changed, 16 insertions(+), 32 deletions(-)
diff --git a/drivers/gpu/drm/vkms/vkms_drv.c b/drivers/gpu/drm/vkms/vkms_drv.c
index eef85f1a0ce5..fec2a4b91c4d 100644
--- a/drivers/gpu/drm/vkms/vkms_drv.c
+++ b/drivers/gpu/drm/vkms/vkms_drv.c
@@ -61,9 +61,6 @@ static void vkms_release(struct drm_device *dev)
{
struct vkms_device *vkms = container_of(dev, struct vkms_device, drm);
- platform_device_unregister(vkms->platform);
- drm_atomic_helper_shutdown(&vkms->drm);
- drm_mode_config_cleanup(&vkms->drm);
destroy_workqueue(vkms->output.composer_workq);
}
@@ -142,30 +139,26 @@ static int vkms_modeset_init(struct vkms_device *vkmsdev)
static int __init vkms_init(void)
{
int ret;
+ struct platform_device *pdev;
- vkms_device = kzalloc(sizeof(*vkms_device), GFP_KERNEL);
- if (!vkms_device)
- return -ENOMEM;
+ pdev = platform_device_register_simple(DRIVER_NAME, -1, NULL, 0);
+ if (IS_ERR(pdev))
+ return PTR_ERR(pdev);
- vkms_device->platform =
- platform_device_register_simple(DRIVER_NAME, -1, NULL, 0);
- if (IS_ERR(vkms_device->platform)) {
- ret = PTR_ERR(vkms_device->platform);
- goto out_free;
+ vkms_device = devm_drm_dev_alloc(&pdev->dev, &vkms_driver,
+ struct vkms_device, drm);
+ if (IS_ERR(vkms_device)) {
+ platform_device_unregister(pdev);
+ return PTR_ERR(vkms_device);
}
-
- ret = drm_dev_init(&vkms_device->drm, &vkms_driver,
- &vkms_device->platform->dev);
- if (ret)
- goto out_unregister;
- drmm_add_final_kfree(&vkms_device->drm, vkms_device);
+ vkms_device->platform = pdev;
ret = dma_coerce_mask_and_coherent(vkms_device->drm.dev,
DMA_BIT_MASK(64));
if (ret) {
DRM_ERROR("Could not initialize DMA support\n");
- goto out_put;
+ return ret;
}
vkms_device->drm.irq_enabled = true;
@@ -173,28 +166,18 @@ static int __init vkms_init(void)
ret = drm_vblank_init(&vkms_device->drm, 1);
if (ret) {
DRM_ERROR("Failed to vblank\n");
- goto out_put;
+ return ret;
}
ret = vkms_modeset_init(vkms_device);
if (ret)
- goto out_put;
+ return ret;
ret = drm_dev_register(&vkms_device->drm, 0);
if (ret)
- goto out_put;
+ return ret;
return 0;
-
-out_put:
- drm_dev_put(&vkms_device->drm);
- return ret;
-
-out_unregister:
- platform_device_unregister(vkms_device->platform);
-out_free:
- kfree(vkms_device);
- return ret;
}
static void __exit vkms_exit(void)
@@ -205,7 +188,8 @@ static void __exit vkms_exit(void)
}
drm_dev_unregister(&vkms_device->drm);
- drm_dev_put(&vkms_device->drm);
+ drm_atomic_helper_shutdown(&vkms_device->drm);
+ platform_device_unregister(vkms_device->platform);
}
module_init(vkms_init);
--
2.25.1
_______________________________________________
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Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [PATCH 06/44] drm/vboxvideo: drop DRM_MTRR_WC #define
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-03 13:57 ` Daniel Vetter
-1 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:57 UTC (permalink / raw)
To: DRI Development
Cc: Daniel Vetter, Intel Graphics Development, Hans de Goede, Daniel Vetter
Doesn't apply to upstream kernels since a rather long time.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Hans de Goede <hdegoede@redhat.com>
---
drivers/gpu/drm/vboxvideo/vbox_ttm.c | 12 ------------
1 file changed, 12 deletions(-)
diff --git a/drivers/gpu/drm/vboxvideo/vbox_ttm.c b/drivers/gpu/drm/vboxvideo/vbox_ttm.c
index 976423d0c3cc..f5a06675da43 100644
--- a/drivers/gpu/drm/vboxvideo/vbox_ttm.c
+++ b/drivers/gpu/drm/vboxvideo/vbox_ttm.c
@@ -24,25 +24,13 @@ int vbox_mm_init(struct vbox_private *vbox)
return ret;
}
-#ifdef DRM_MTRR_WC
- vbox->fb_mtrr = drm_mtrr_add(pci_resource_start(dev->pdev, 0),
- pci_resource_len(dev->pdev, 0),
- DRM_MTRR_WC);
-#else
vbox->fb_mtrr = arch_phys_wc_add(pci_resource_start(dev->pdev, 0),
pci_resource_len(dev->pdev, 0));
-#endif
return 0;
}
void vbox_mm_fini(struct vbox_private *vbox)
{
-#ifdef DRM_MTRR_WC
- drm_mtrr_del(vbox->fb_mtrr,
- pci_resource_start(vbox->ddev.pdev, 0),
- pci_resource_len(vbox->ddev.pdev, 0), DRM_MTRR_WC);
-#else
arch_phys_wc_del(vbox->fb_mtrr);
-#endif
drm_vram_helper_release_mm(&vbox->ddev);
}
--
2.25.1
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https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [Intel-gfx] [PATCH 06/44] drm/vboxvideo: drop DRM_MTRR_WC #define
@ 2020-04-03 13:57 ` Daniel Vetter
0 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:57 UTC (permalink / raw)
To: DRI Development; +Cc: Daniel Vetter, Intel Graphics Development, Daniel Vetter
Doesn't apply to upstream kernels since a rather long time.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Hans de Goede <hdegoede@redhat.com>
---
drivers/gpu/drm/vboxvideo/vbox_ttm.c | 12 ------------
1 file changed, 12 deletions(-)
diff --git a/drivers/gpu/drm/vboxvideo/vbox_ttm.c b/drivers/gpu/drm/vboxvideo/vbox_ttm.c
index 976423d0c3cc..f5a06675da43 100644
--- a/drivers/gpu/drm/vboxvideo/vbox_ttm.c
+++ b/drivers/gpu/drm/vboxvideo/vbox_ttm.c
@@ -24,25 +24,13 @@ int vbox_mm_init(struct vbox_private *vbox)
return ret;
}
-#ifdef DRM_MTRR_WC
- vbox->fb_mtrr = drm_mtrr_add(pci_resource_start(dev->pdev, 0),
- pci_resource_len(dev->pdev, 0),
- DRM_MTRR_WC);
-#else
vbox->fb_mtrr = arch_phys_wc_add(pci_resource_start(dev->pdev, 0),
pci_resource_len(dev->pdev, 0));
-#endif
return 0;
}
void vbox_mm_fini(struct vbox_private *vbox)
{
-#ifdef DRM_MTRR_WC
- drm_mtrr_del(vbox->fb_mtrr,
- pci_resource_start(vbox->ddev.pdev, 0),
- pci_resource_len(vbox->ddev.pdev, 0), DRM_MTRR_WC);
-#else
arch_phys_wc_del(vbox->fb_mtrr);
-#endif
drm_vram_helper_release_mm(&vbox->ddev);
}
--
2.25.1
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Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [PATCH 07/44] drm/vboxvideo: Use devm_drm_dev_alloc
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-03 13:57 ` Daniel Vetter
-1 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:57 UTC (permalink / raw)
To: DRI Development
Cc: Daniel Vetter, Intel Graphics Development, Hans de Goede, Daniel Vetter
Straightforward conversion.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Hans de Goede <hdegoede@redhat.com>
---
drivers/gpu/drm/vboxvideo/vbox_drv.c | 19 +++++--------------
1 file changed, 5 insertions(+), 14 deletions(-)
diff --git a/drivers/gpu/drm/vboxvideo/vbox_drv.c b/drivers/gpu/drm/vboxvideo/vbox_drv.c
index d685ec197fa0..be0600b22cf5 100644
--- a/drivers/gpu/drm/vboxvideo/vbox_drv.c
+++ b/drivers/gpu/drm/vboxvideo/vbox_drv.c
@@ -46,25 +46,19 @@ static int vbox_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
if (ret)
return ret;
- vbox = kzalloc(sizeof(*vbox), GFP_KERNEL);
- if (!vbox)
- return -ENOMEM;
-
- ret = drm_dev_init(&vbox->ddev, &driver, &pdev->dev);
- if (ret) {
- kfree(vbox);
- return ret;
- }
+ vbox = devm_drm_dev_alloc(&pdev->dev, &driver,
+ struct vbox_private, ddev);
+ if (IS_ERR(vbox))
+ return PTR_ERR(vbox);
vbox->ddev.pdev = pdev;
vbox->ddev.dev_private = vbox;
pci_set_drvdata(pdev, vbox);
- drmm_add_final_kfree(&vbox->ddev, vbox);
mutex_init(&vbox->hw_mutex);
ret = pci_enable_device(pdev);
if (ret)
- goto err_dev_put;
+ return ret;
ret = vbox_hw_init(vbox);
if (ret)
@@ -102,8 +96,6 @@ static int vbox_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
vbox_hw_fini(vbox);
err_pci_disable:
pci_disable_device(pdev);
-err_dev_put:
- drm_dev_put(&vbox->ddev);
return ret;
}
@@ -116,7 +108,6 @@ static void vbox_pci_remove(struct pci_dev *pdev)
vbox_mode_fini(vbox);
vbox_mm_fini(vbox);
vbox_hw_fini(vbox);
- drm_dev_put(&vbox->ddev);
}
#ifdef CONFIG_PM_SLEEP
--
2.25.1
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dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [Intel-gfx] [PATCH 07/44] drm/vboxvideo: Use devm_drm_dev_alloc
@ 2020-04-03 13:57 ` Daniel Vetter
0 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:57 UTC (permalink / raw)
To: DRI Development; +Cc: Daniel Vetter, Intel Graphics Development, Daniel Vetter
Straightforward conversion.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Hans de Goede <hdegoede@redhat.com>
---
drivers/gpu/drm/vboxvideo/vbox_drv.c | 19 +++++--------------
1 file changed, 5 insertions(+), 14 deletions(-)
diff --git a/drivers/gpu/drm/vboxvideo/vbox_drv.c b/drivers/gpu/drm/vboxvideo/vbox_drv.c
index d685ec197fa0..be0600b22cf5 100644
--- a/drivers/gpu/drm/vboxvideo/vbox_drv.c
+++ b/drivers/gpu/drm/vboxvideo/vbox_drv.c
@@ -46,25 +46,19 @@ static int vbox_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
if (ret)
return ret;
- vbox = kzalloc(sizeof(*vbox), GFP_KERNEL);
- if (!vbox)
- return -ENOMEM;
-
- ret = drm_dev_init(&vbox->ddev, &driver, &pdev->dev);
- if (ret) {
- kfree(vbox);
- return ret;
- }
+ vbox = devm_drm_dev_alloc(&pdev->dev, &driver,
+ struct vbox_private, ddev);
+ if (IS_ERR(vbox))
+ return PTR_ERR(vbox);
vbox->ddev.pdev = pdev;
vbox->ddev.dev_private = vbox;
pci_set_drvdata(pdev, vbox);
- drmm_add_final_kfree(&vbox->ddev, vbox);
mutex_init(&vbox->hw_mutex);
ret = pci_enable_device(pdev);
if (ret)
- goto err_dev_put;
+ return ret;
ret = vbox_hw_init(vbox);
if (ret)
@@ -102,8 +96,6 @@ static int vbox_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
vbox_hw_fini(vbox);
err_pci_disable:
pci_disable_device(pdev);
-err_dev_put:
- drm_dev_put(&vbox->ddev);
return ret;
}
@@ -116,7 +108,6 @@ static void vbox_pci_remove(struct pci_dev *pdev)
vbox_mode_fini(vbox);
vbox_mm_fini(vbox);
vbox_hw_fini(vbox);
- drm_dev_put(&vbox->ddev);
}
#ifdef CONFIG_PM_SLEEP
--
2.25.1
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Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [PATCH 08/44] drm/vboxvideo: Stop using drm_device->dev_private
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-03 13:57 ` Daniel Vetter
-1 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:57 UTC (permalink / raw)
To: DRI Development
Cc: Daniel Vetter, Intel Graphics Development, Hans de Goede, Daniel Vetter
We use the baseclass pattern here, so lets to the proper (and more
typesafe) upcasting.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Hans de Goede <hdegoede@redhat.com>
---
drivers/gpu/drm/vboxvideo/vbox_drv.c | 1 -
drivers/gpu/drm/vboxvideo/vbox_drv.h | 1 +
drivers/gpu/drm/vboxvideo/vbox_irq.c | 2 +-
drivers/gpu/drm/vboxvideo/vbox_mode.c | 10 +++++-----
4 files changed, 7 insertions(+), 7 deletions(-)
diff --git a/drivers/gpu/drm/vboxvideo/vbox_drv.c b/drivers/gpu/drm/vboxvideo/vbox_drv.c
index be0600b22cf5..d34cddd809fd 100644
--- a/drivers/gpu/drm/vboxvideo/vbox_drv.c
+++ b/drivers/gpu/drm/vboxvideo/vbox_drv.c
@@ -52,7 +52,6 @@ static int vbox_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
return PTR_ERR(vbox);
vbox->ddev.pdev = pdev;
- vbox->ddev.dev_private = vbox;
pci_set_drvdata(pdev, vbox);
mutex_init(&vbox->hw_mutex);
diff --git a/drivers/gpu/drm/vboxvideo/vbox_drv.h b/drivers/gpu/drm/vboxvideo/vbox_drv.h
index 87421903816c..ac7c2effc46f 100644
--- a/drivers/gpu/drm/vboxvideo/vbox_drv.h
+++ b/drivers/gpu/drm/vboxvideo/vbox_drv.h
@@ -127,6 +127,7 @@ struct vbox_encoder {
#define to_vbox_crtc(x) container_of(x, struct vbox_crtc, base)
#define to_vbox_connector(x) container_of(x, struct vbox_connector, base)
#define to_vbox_encoder(x) container_of(x, struct vbox_encoder, base)
+#define to_vbox_dev(x) container_of(x, struct vbox_private, ddev)
bool vbox_check_supported(u16 id);
int vbox_hw_init(struct vbox_private *vbox);
diff --git a/drivers/gpu/drm/vboxvideo/vbox_irq.c b/drivers/gpu/drm/vboxvideo/vbox_irq.c
index 16a1e29f5292..631657fa554f 100644
--- a/drivers/gpu/drm/vboxvideo/vbox_irq.c
+++ b/drivers/gpu/drm/vboxvideo/vbox_irq.c
@@ -34,7 +34,7 @@ void vbox_report_hotplug(struct vbox_private *vbox)
irqreturn_t vbox_irq_handler(int irq, void *arg)
{
struct drm_device *dev = (struct drm_device *)arg;
- struct vbox_private *vbox = (struct vbox_private *)dev->dev_private;
+ struct vbox_private *vbox = to_vbox_dev(dev);
u32 host_flags = vbox_get_flags(vbox);
if (!(host_flags & HGSMIHOSTFLAGS_IRQ))
diff --git a/drivers/gpu/drm/vboxvideo/vbox_mode.c b/drivers/gpu/drm/vboxvideo/vbox_mode.c
index 0883a435e62b..d9a5af62af89 100644
--- a/drivers/gpu/drm/vboxvideo/vbox_mode.c
+++ b/drivers/gpu/drm/vboxvideo/vbox_mode.c
@@ -36,7 +36,7 @@ static void vbox_do_modeset(struct drm_crtc *crtc)
u16 flags;
s32 x_offset, y_offset;
- vbox = crtc->dev->dev_private;
+ vbox = to_vbox_dev(crtc->dev);
width = vbox_crtc->width ? vbox_crtc->width : 640;
height = vbox_crtc->height ? vbox_crtc->height : 480;
bpp = fb ? fb->format->cpp[0] * 8 : 32;
@@ -77,7 +77,7 @@ static void vbox_do_modeset(struct drm_crtc *crtc)
static int vbox_set_view(struct drm_crtc *crtc)
{
struct vbox_crtc *vbox_crtc = to_vbox_crtc(crtc);
- struct vbox_private *vbox = crtc->dev->dev_private;
+ struct vbox_private *vbox = to_vbox_dev(crtc->dev);
struct vbva_infoview *p;
/*
@@ -174,7 +174,7 @@ static void vbox_crtc_set_base_and_mode(struct drm_crtc *crtc,
int x, int y)
{
struct drm_gem_vram_object *gbo = drm_gem_vram_of_gem(fb->obj[0]);
- struct vbox_private *vbox = crtc->dev->dev_private;
+ struct vbox_private *vbox = to_vbox_dev(crtc->dev);
struct vbox_crtc *vbox_crtc = to_vbox_crtc(crtc);
bool needs_modeset = drm_atomic_crtc_needs_modeset(crtc->state);
@@ -272,7 +272,7 @@ static void vbox_primary_atomic_update(struct drm_plane *plane,
{
struct drm_crtc *crtc = plane->state->crtc;
struct drm_framebuffer *fb = plane->state->fb;
- struct vbox_private *vbox = fb->dev->dev_private;
+ struct vbox_private *vbox = to_vbox_dev(fb->dev);
struct drm_mode_rect *clips;
uint32_t num_clips, i;
@@ -704,7 +704,7 @@ static int vbox_get_modes(struct drm_connector *connector)
int preferred_width, preferred_height;
vbox_connector = to_vbox_connector(connector);
- vbox = connector->dev->dev_private;
+ vbox = to_vbox_dev(connector->dev);
hgsmi_report_flags_location(vbox->guest_pool, GUEST_HEAP_OFFSET(vbox) +
HOST_FLAGS_OFFSET);
--
2.25.1
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dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [Intel-gfx] [PATCH 08/44] drm/vboxvideo: Stop using drm_device->dev_private
@ 2020-04-03 13:57 ` Daniel Vetter
0 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:57 UTC (permalink / raw)
To: DRI Development; +Cc: Daniel Vetter, Intel Graphics Development, Daniel Vetter
We use the baseclass pattern here, so lets to the proper (and more
typesafe) upcasting.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Hans de Goede <hdegoede@redhat.com>
---
drivers/gpu/drm/vboxvideo/vbox_drv.c | 1 -
drivers/gpu/drm/vboxvideo/vbox_drv.h | 1 +
drivers/gpu/drm/vboxvideo/vbox_irq.c | 2 +-
drivers/gpu/drm/vboxvideo/vbox_mode.c | 10 +++++-----
4 files changed, 7 insertions(+), 7 deletions(-)
diff --git a/drivers/gpu/drm/vboxvideo/vbox_drv.c b/drivers/gpu/drm/vboxvideo/vbox_drv.c
index be0600b22cf5..d34cddd809fd 100644
--- a/drivers/gpu/drm/vboxvideo/vbox_drv.c
+++ b/drivers/gpu/drm/vboxvideo/vbox_drv.c
@@ -52,7 +52,6 @@ static int vbox_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
return PTR_ERR(vbox);
vbox->ddev.pdev = pdev;
- vbox->ddev.dev_private = vbox;
pci_set_drvdata(pdev, vbox);
mutex_init(&vbox->hw_mutex);
diff --git a/drivers/gpu/drm/vboxvideo/vbox_drv.h b/drivers/gpu/drm/vboxvideo/vbox_drv.h
index 87421903816c..ac7c2effc46f 100644
--- a/drivers/gpu/drm/vboxvideo/vbox_drv.h
+++ b/drivers/gpu/drm/vboxvideo/vbox_drv.h
@@ -127,6 +127,7 @@ struct vbox_encoder {
#define to_vbox_crtc(x) container_of(x, struct vbox_crtc, base)
#define to_vbox_connector(x) container_of(x, struct vbox_connector, base)
#define to_vbox_encoder(x) container_of(x, struct vbox_encoder, base)
+#define to_vbox_dev(x) container_of(x, struct vbox_private, ddev)
bool vbox_check_supported(u16 id);
int vbox_hw_init(struct vbox_private *vbox);
diff --git a/drivers/gpu/drm/vboxvideo/vbox_irq.c b/drivers/gpu/drm/vboxvideo/vbox_irq.c
index 16a1e29f5292..631657fa554f 100644
--- a/drivers/gpu/drm/vboxvideo/vbox_irq.c
+++ b/drivers/gpu/drm/vboxvideo/vbox_irq.c
@@ -34,7 +34,7 @@ void vbox_report_hotplug(struct vbox_private *vbox)
irqreturn_t vbox_irq_handler(int irq, void *arg)
{
struct drm_device *dev = (struct drm_device *)arg;
- struct vbox_private *vbox = (struct vbox_private *)dev->dev_private;
+ struct vbox_private *vbox = to_vbox_dev(dev);
u32 host_flags = vbox_get_flags(vbox);
if (!(host_flags & HGSMIHOSTFLAGS_IRQ))
diff --git a/drivers/gpu/drm/vboxvideo/vbox_mode.c b/drivers/gpu/drm/vboxvideo/vbox_mode.c
index 0883a435e62b..d9a5af62af89 100644
--- a/drivers/gpu/drm/vboxvideo/vbox_mode.c
+++ b/drivers/gpu/drm/vboxvideo/vbox_mode.c
@@ -36,7 +36,7 @@ static void vbox_do_modeset(struct drm_crtc *crtc)
u16 flags;
s32 x_offset, y_offset;
- vbox = crtc->dev->dev_private;
+ vbox = to_vbox_dev(crtc->dev);
width = vbox_crtc->width ? vbox_crtc->width : 640;
height = vbox_crtc->height ? vbox_crtc->height : 480;
bpp = fb ? fb->format->cpp[0] * 8 : 32;
@@ -77,7 +77,7 @@ static void vbox_do_modeset(struct drm_crtc *crtc)
static int vbox_set_view(struct drm_crtc *crtc)
{
struct vbox_crtc *vbox_crtc = to_vbox_crtc(crtc);
- struct vbox_private *vbox = crtc->dev->dev_private;
+ struct vbox_private *vbox = to_vbox_dev(crtc->dev);
struct vbva_infoview *p;
/*
@@ -174,7 +174,7 @@ static void vbox_crtc_set_base_and_mode(struct drm_crtc *crtc,
int x, int y)
{
struct drm_gem_vram_object *gbo = drm_gem_vram_of_gem(fb->obj[0]);
- struct vbox_private *vbox = crtc->dev->dev_private;
+ struct vbox_private *vbox = to_vbox_dev(crtc->dev);
struct vbox_crtc *vbox_crtc = to_vbox_crtc(crtc);
bool needs_modeset = drm_atomic_crtc_needs_modeset(crtc->state);
@@ -272,7 +272,7 @@ static void vbox_primary_atomic_update(struct drm_plane *plane,
{
struct drm_crtc *crtc = plane->state->crtc;
struct drm_framebuffer *fb = plane->state->fb;
- struct vbox_private *vbox = fb->dev->dev_private;
+ struct vbox_private *vbox = to_vbox_dev(fb->dev);
struct drm_mode_rect *clips;
uint32_t num_clips, i;
@@ -704,7 +704,7 @@ static int vbox_get_modes(struct drm_connector *connector)
int preferred_width, preferred_height;
vbox_connector = to_vbox_connector(connector);
- vbox = connector->dev->dev_private;
+ vbox = to_vbox_dev(connector->dev);
hgsmi_report_flags_location(vbox->guest_pool, GUEST_HEAP_OFFSET(vbox) +
HOST_FLAGS_OFFSET);
--
2.25.1
_______________________________________________
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Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [PATCH 09/44] drm/vboxvidoe: use managed pci functions
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-03 13:57 ` Daniel Vetter
-1 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:57 UTC (permalink / raw)
To: DRI Development
Cc: Daniel Vetter, Intel Graphics Development, Hans de Goede, Daniel Vetter
Allows us to drop the cleanup code on the floor.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Hans de Goede <hdegoede@redhat.com>
---
drivers/gpu/drm/vboxvideo/vbox_drv.c | 6 ++----
drivers/gpu/drm/vboxvideo/vbox_main.c | 7 +------
2 files changed, 3 insertions(+), 10 deletions(-)
diff --git a/drivers/gpu/drm/vboxvideo/vbox_drv.c b/drivers/gpu/drm/vboxvideo/vbox_drv.c
index d34cddd809fd..c80695c2f6c0 100644
--- a/drivers/gpu/drm/vboxvideo/vbox_drv.c
+++ b/drivers/gpu/drm/vboxvideo/vbox_drv.c
@@ -55,13 +55,13 @@ static int vbox_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
pci_set_drvdata(pdev, vbox);
mutex_init(&vbox->hw_mutex);
- ret = pci_enable_device(pdev);
+ ret = pcim_enable_device(pdev);
if (ret)
return ret;
ret = vbox_hw_init(vbox);
if (ret)
- goto err_pci_disable;
+ return ret;
ret = vbox_mm_init(vbox);
if (ret)
@@ -93,8 +93,6 @@ static int vbox_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
vbox_mm_fini(vbox);
err_hw_fini:
vbox_hw_fini(vbox);
-err_pci_disable:
- pci_disable_device(pdev);
return ret;
}
diff --git a/drivers/gpu/drm/vboxvideo/vbox_main.c b/drivers/gpu/drm/vboxvideo/vbox_main.c
index 9dcab115a261..1336ab9795fc 100644
--- a/drivers/gpu/drm/vboxvideo/vbox_main.c
+++ b/drivers/gpu/drm/vboxvideo/vbox_main.c
@@ -71,8 +71,6 @@ static void vbox_accel_fini(struct vbox_private *vbox)
for (i = 0; i < vbox->num_crtcs; ++i)
vbva_disable(&vbox->vbva_info[i], vbox->guest_pool, i);
-
- pci_iounmap(vbox->ddev.pdev, vbox->vbva_buffers);
}
/* Do we support the 4.3 plus mode hint reporting interface? */
@@ -125,7 +123,7 @@ int vbox_hw_init(struct vbox_private *vbox)
/* Create guest-heap mem-pool use 2^4 = 16 byte chunks */
vbox->guest_pool = gen_pool_create(4, -1);
if (!vbox->guest_pool)
- goto err_unmap_guest_heap;
+ return -ENOMEM;
ret = gen_pool_add_virt(vbox->guest_pool,
(unsigned long)vbox->guest_heap,
@@ -168,8 +166,6 @@ int vbox_hw_init(struct vbox_private *vbox)
err_destroy_guest_pool:
gen_pool_destroy(vbox->guest_pool);
-err_unmap_guest_heap:
- pci_iounmap(vbox->ddev.pdev, vbox->guest_heap);
return ret;
}
@@ -177,5 +173,4 @@ void vbox_hw_fini(struct vbox_private *vbox)
{
vbox_accel_fini(vbox);
gen_pool_destroy(vbox->guest_pool);
- pci_iounmap(vbox->ddev.pdev, vbox->guest_heap);
}
--
2.25.1
_______________________________________________
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dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [Intel-gfx] [PATCH 09/44] drm/vboxvidoe: use managed pci functions
@ 2020-04-03 13:57 ` Daniel Vetter
0 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:57 UTC (permalink / raw)
To: DRI Development; +Cc: Daniel Vetter, Intel Graphics Development, Daniel Vetter
Allows us to drop the cleanup code on the floor.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Hans de Goede <hdegoede@redhat.com>
---
drivers/gpu/drm/vboxvideo/vbox_drv.c | 6 ++----
drivers/gpu/drm/vboxvideo/vbox_main.c | 7 +------
2 files changed, 3 insertions(+), 10 deletions(-)
diff --git a/drivers/gpu/drm/vboxvideo/vbox_drv.c b/drivers/gpu/drm/vboxvideo/vbox_drv.c
index d34cddd809fd..c80695c2f6c0 100644
--- a/drivers/gpu/drm/vboxvideo/vbox_drv.c
+++ b/drivers/gpu/drm/vboxvideo/vbox_drv.c
@@ -55,13 +55,13 @@ static int vbox_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
pci_set_drvdata(pdev, vbox);
mutex_init(&vbox->hw_mutex);
- ret = pci_enable_device(pdev);
+ ret = pcim_enable_device(pdev);
if (ret)
return ret;
ret = vbox_hw_init(vbox);
if (ret)
- goto err_pci_disable;
+ return ret;
ret = vbox_mm_init(vbox);
if (ret)
@@ -93,8 +93,6 @@ static int vbox_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
vbox_mm_fini(vbox);
err_hw_fini:
vbox_hw_fini(vbox);
-err_pci_disable:
- pci_disable_device(pdev);
return ret;
}
diff --git a/drivers/gpu/drm/vboxvideo/vbox_main.c b/drivers/gpu/drm/vboxvideo/vbox_main.c
index 9dcab115a261..1336ab9795fc 100644
--- a/drivers/gpu/drm/vboxvideo/vbox_main.c
+++ b/drivers/gpu/drm/vboxvideo/vbox_main.c
@@ -71,8 +71,6 @@ static void vbox_accel_fini(struct vbox_private *vbox)
for (i = 0; i < vbox->num_crtcs; ++i)
vbva_disable(&vbox->vbva_info[i], vbox->guest_pool, i);
-
- pci_iounmap(vbox->ddev.pdev, vbox->vbva_buffers);
}
/* Do we support the 4.3 plus mode hint reporting interface? */
@@ -125,7 +123,7 @@ int vbox_hw_init(struct vbox_private *vbox)
/* Create guest-heap mem-pool use 2^4 = 16 byte chunks */
vbox->guest_pool = gen_pool_create(4, -1);
if (!vbox->guest_pool)
- goto err_unmap_guest_heap;
+ return -ENOMEM;
ret = gen_pool_add_virt(vbox->guest_pool,
(unsigned long)vbox->guest_heap,
@@ -168,8 +166,6 @@ int vbox_hw_init(struct vbox_private *vbox)
err_destroy_guest_pool:
gen_pool_destroy(vbox->guest_pool);
-err_unmap_guest_heap:
- pci_iounmap(vbox->ddev.pdev, vbox->guest_heap);
return ret;
}
@@ -177,5 +173,4 @@ void vbox_hw_fini(struct vbox_private *vbox)
{
vbox_accel_fini(vbox);
gen_pool_destroy(vbox->guest_pool);
- pci_iounmap(vbox->ddev.pdev, vbox->guest_heap);
}
--
2.25.1
_______________________________________________
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Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [PATCH 10/44] drm/vboxvideo: Use devm_gen_pool_create
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-03 13:57 ` Daniel Vetter
-1 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:57 UTC (permalink / raw)
To: DRI Development
Cc: Daniel Vetter, Intel Graphics Development, Hans de Goede, Daniel Vetter
Aside from deleting all the cleanup code we're now also setting a name
for the pool
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Hans de Goede <hdegoede@redhat.com>
---
drivers/gpu/drm/vboxvideo/vbox_main.c | 22 ++++++++--------------
1 file changed, 8 insertions(+), 14 deletions(-)
diff --git a/drivers/gpu/drm/vboxvideo/vbox_main.c b/drivers/gpu/drm/vboxvideo/vbox_main.c
index 1336ab9795fc..d68d9bad7674 100644
--- a/drivers/gpu/drm/vboxvideo/vbox_main.c
+++ b/drivers/gpu/drm/vboxvideo/vbox_main.c
@@ -121,7 +121,8 @@ int vbox_hw_init(struct vbox_private *vbox)
return -ENOMEM;
/* Create guest-heap mem-pool use 2^4 = 16 byte chunks */
- vbox->guest_pool = gen_pool_create(4, -1);
+ vbox->guest_pool = devm_gen_pool_create(vbox->ddev.dev, 4, -1,
+ "vboxvideo-accel");
if (!vbox->guest_pool)
return -ENOMEM;
@@ -130,12 +131,12 @@ int vbox_hw_init(struct vbox_private *vbox)
GUEST_HEAP_OFFSET(vbox),
GUEST_HEAP_USABLE_SIZE, -1);
if (ret)
- goto err_destroy_guest_pool;
+ return ret;
ret = hgsmi_test_query_conf(vbox->guest_pool);
if (ret) {
DRM_ERROR("vboxvideo: hgsmi_test_query_conf failed\n");
- goto err_destroy_guest_pool;
+ return ret;
}
/* Reduce available VRAM size to reflect the guest heap. */
@@ -147,30 +148,23 @@ int vbox_hw_init(struct vbox_private *vbox)
if (!have_hgsmi_mode_hints(vbox)) {
ret = -ENOTSUPP;
- goto err_destroy_guest_pool;
+ return ret;
}
vbox->last_mode_hints = devm_kcalloc(vbox->ddev.dev, vbox->num_crtcs,
sizeof(struct vbva_modehint),
GFP_KERNEL);
- if (!vbox->last_mode_hints) {
- ret = -ENOMEM;
- goto err_destroy_guest_pool;
- }
+ if (!vbox->last_mode_hints)
+ return -ENOMEM;
ret = vbox_accel_init(vbox);
if (ret)
- goto err_destroy_guest_pool;
+ return ret;
return 0;
-
-err_destroy_guest_pool:
- gen_pool_destroy(vbox->guest_pool);
- return ret;
}
void vbox_hw_fini(struct vbox_private *vbox)
{
vbox_accel_fini(vbox);
- gen_pool_destroy(vbox->guest_pool);
}
--
2.25.1
_______________________________________________
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dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [Intel-gfx] [PATCH 10/44] drm/vboxvideo: Use devm_gen_pool_create
@ 2020-04-03 13:57 ` Daniel Vetter
0 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:57 UTC (permalink / raw)
To: DRI Development; +Cc: Daniel Vetter, Intel Graphics Development, Daniel Vetter
Aside from deleting all the cleanup code we're now also setting a name
for the pool
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Hans de Goede <hdegoede@redhat.com>
---
drivers/gpu/drm/vboxvideo/vbox_main.c | 22 ++++++++--------------
1 file changed, 8 insertions(+), 14 deletions(-)
diff --git a/drivers/gpu/drm/vboxvideo/vbox_main.c b/drivers/gpu/drm/vboxvideo/vbox_main.c
index 1336ab9795fc..d68d9bad7674 100644
--- a/drivers/gpu/drm/vboxvideo/vbox_main.c
+++ b/drivers/gpu/drm/vboxvideo/vbox_main.c
@@ -121,7 +121,8 @@ int vbox_hw_init(struct vbox_private *vbox)
return -ENOMEM;
/* Create guest-heap mem-pool use 2^4 = 16 byte chunks */
- vbox->guest_pool = gen_pool_create(4, -1);
+ vbox->guest_pool = devm_gen_pool_create(vbox->ddev.dev, 4, -1,
+ "vboxvideo-accel");
if (!vbox->guest_pool)
return -ENOMEM;
@@ -130,12 +131,12 @@ int vbox_hw_init(struct vbox_private *vbox)
GUEST_HEAP_OFFSET(vbox),
GUEST_HEAP_USABLE_SIZE, -1);
if (ret)
- goto err_destroy_guest_pool;
+ return ret;
ret = hgsmi_test_query_conf(vbox->guest_pool);
if (ret) {
DRM_ERROR("vboxvideo: hgsmi_test_query_conf failed\n");
- goto err_destroy_guest_pool;
+ return ret;
}
/* Reduce available VRAM size to reflect the guest heap. */
@@ -147,30 +148,23 @@ int vbox_hw_init(struct vbox_private *vbox)
if (!have_hgsmi_mode_hints(vbox)) {
ret = -ENOTSUPP;
- goto err_destroy_guest_pool;
+ return ret;
}
vbox->last_mode_hints = devm_kcalloc(vbox->ddev.dev, vbox->num_crtcs,
sizeof(struct vbva_modehint),
GFP_KERNEL);
- if (!vbox->last_mode_hints) {
- ret = -ENOMEM;
- goto err_destroy_guest_pool;
- }
+ if (!vbox->last_mode_hints)
+ return -ENOMEM;
ret = vbox_accel_init(vbox);
if (ret)
- goto err_destroy_guest_pool;
+ return ret;
return 0;
-
-err_destroy_guest_pool:
- gen_pool_destroy(vbox->guest_pool);
- return ret;
}
void vbox_hw_fini(struct vbox_private *vbox)
{
vbox_accel_fini(vbox);
- gen_pool_destroy(vbox->guest_pool);
}
--
2.25.1
_______________________________________________
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Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [PATCH 11/44] drm/v3d: Don't set drm_device->dev_private
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-03 13:57 ` Daniel Vetter
-1 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:57 UTC (permalink / raw)
To: DRI Development; +Cc: Daniel Vetter, Intel Graphics Development, Daniel Vetter
And switch the helper over to container_of, which is a bunch faster
than chasing a pointer. Plus allows gcc to see through this maze.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Eric Anholt <eric@anholt.net>
---
drivers/gpu/drm/v3d/v3d_drv.c | 1 -
drivers/gpu/drm/v3d/v3d_drv.h | 2 +-
2 files changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/v3d/v3d_drv.c b/drivers/gpu/drm/v3d/v3d_drv.c
index 8d0c0daaac81..ead62a15d48f 100644
--- a/drivers/gpu/drm/v3d/v3d_drv.c
+++ b/drivers/gpu/drm/v3d/v3d_drv.c
@@ -265,7 +265,6 @@ static int v3d_platform_drm_probe(struct platform_device *pdev)
}
platform_set_drvdata(pdev, drm);
- drm->dev_private = v3d;
drmm_add_final_kfree(drm, v3d);
ret = map_regs(v3d, &v3d->hub_regs, "hub");
diff --git a/drivers/gpu/drm/v3d/v3d_drv.h b/drivers/gpu/drm/v3d/v3d_drv.h
index e0775c884553..112d80aed5f6 100644
--- a/drivers/gpu/drm/v3d/v3d_drv.h
+++ b/drivers/gpu/drm/v3d/v3d_drv.h
@@ -121,7 +121,7 @@ struct v3d_dev {
static inline struct v3d_dev *
to_v3d_dev(struct drm_device *dev)
{
- return (struct v3d_dev *)dev->dev_private;
+ return container_of(dev, struct v3d_dev, drm);
}
static inline bool
--
2.25.1
_______________________________________________
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dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [Intel-gfx] [PATCH 11/44] drm/v3d: Don't set drm_device->dev_private
@ 2020-04-03 13:57 ` Daniel Vetter
0 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:57 UTC (permalink / raw)
To: DRI Development
Cc: Eric Anholt, Daniel Vetter, Intel Graphics Development, Daniel Vetter
And switch the helper over to container_of, which is a bunch faster
than chasing a pointer. Plus allows gcc to see through this maze.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Eric Anholt <eric@anholt.net>
---
drivers/gpu/drm/v3d/v3d_drv.c | 1 -
drivers/gpu/drm/v3d/v3d_drv.h | 2 +-
2 files changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/v3d/v3d_drv.c b/drivers/gpu/drm/v3d/v3d_drv.c
index 8d0c0daaac81..ead62a15d48f 100644
--- a/drivers/gpu/drm/v3d/v3d_drv.c
+++ b/drivers/gpu/drm/v3d/v3d_drv.c
@@ -265,7 +265,6 @@ static int v3d_platform_drm_probe(struct platform_device *pdev)
}
platform_set_drvdata(pdev, drm);
- drm->dev_private = v3d;
drmm_add_final_kfree(drm, v3d);
ret = map_regs(v3d, &v3d->hub_regs, "hub");
diff --git a/drivers/gpu/drm/v3d/v3d_drv.h b/drivers/gpu/drm/v3d/v3d_drv.h
index e0775c884553..112d80aed5f6 100644
--- a/drivers/gpu/drm/v3d/v3d_drv.h
+++ b/drivers/gpu/drm/v3d/v3d_drv.h
@@ -121,7 +121,7 @@ struct v3d_dev {
static inline struct v3d_dev *
to_v3d_dev(struct drm_device *dev)
{
- return (struct v3d_dev *)dev->dev_private;
+ return container_of(dev, struct v3d_dev, drm);
}
static inline bool
--
2.25.1
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Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [PATCH 12/44] drm/v3d: Use devm_drm_dev_alloc
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-03 13:57 ` Daniel Vetter
-1 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:57 UTC (permalink / raw)
To: DRI Development; +Cc: Daniel Vetter, Intel Graphics Development, Daniel Vetter
Also allows us to simplify the unroll code since the drm_dev_put
disappears.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Eric Anholt <eric@anholt.net>
---
drivers/gpu/drm/v3d/v3d_drv.c | 31 ++++++++++---------------------
1 file changed, 10 insertions(+), 21 deletions(-)
diff --git a/drivers/gpu/drm/v3d/v3d_drv.c b/drivers/gpu/drm/v3d/v3d_drv.c
index ead62a15d48f..f57d408ef371 100644
--- a/drivers/gpu/drm/v3d/v3d_drv.c
+++ b/drivers/gpu/drm/v3d/v3d_drv.c
@@ -251,29 +251,23 @@ static int v3d_platform_drm_probe(struct platform_device *pdev)
u32 ident1;
- v3d = kzalloc(sizeof(*v3d), GFP_KERNEL);
- if (!v3d)
- return -ENOMEM;
+ v3d = devm_drm_dev_alloc(dev, &v3d_drm_driver, struct v3d_dev, drm);
+ if (IS_ERR(v3d))
+ return PTR_ERR(v3d);
+
v3d->dev = dev;
v3d->pdev = pdev;
drm = &v3d->drm;
- ret = drm_dev_init(&v3d->drm, &v3d_drm_driver, dev);
- if (ret) {
- kfree(v3d);
- return ret;
- }
-
platform_set_drvdata(pdev, drm);
- drmm_add_final_kfree(drm, v3d);
ret = map_regs(v3d, &v3d->hub_regs, "hub");
if (ret)
- goto dev_destroy;
+ return ret;
ret = map_regs(v3d, &v3d->core_regs[0], "core0");
if (ret)
- goto dev_destroy;
+ return ret;
mmu_debug = V3D_READ(V3D_MMU_DEBUG_INFO);
dev->coherent_dma_mask =
@@ -291,29 +285,28 @@ static int v3d_platform_drm_probe(struct platform_device *pdev)
ret = PTR_ERR(v3d->reset);
if (ret == -EPROBE_DEFER)
- goto dev_destroy;
+ return ret;
v3d->reset = NULL;
ret = map_regs(v3d, &v3d->bridge_regs, "bridge");
if (ret) {
dev_err(dev,
"Failed to get reset control or bridge regs\n");
- goto dev_destroy;
+ return ret;
}
}
if (v3d->ver < 41) {
ret = map_regs(v3d, &v3d->gca_regs, "gca");
if (ret)
- goto dev_destroy;
+ return ret;
}
v3d->mmu_scratch = dma_alloc_wc(dev, 4096, &v3d->mmu_scratch_paddr,
GFP_KERNEL | __GFP_NOWARN | __GFP_ZERO);
if (!v3d->mmu_scratch) {
dev_err(dev, "Failed to allocate MMU scratch page\n");
- ret = -ENOMEM;
- goto dev_destroy;
+ return -ENOMEM;
}
pm_runtime_use_autosuspend(dev);
@@ -340,8 +333,6 @@ static int v3d_platform_drm_probe(struct platform_device *pdev)
v3d_gem_destroy(drm);
dma_free:
dma_free_wc(dev, 4096, v3d->mmu_scratch, v3d->mmu_scratch_paddr);
-dev_destroy:
- drm_dev_put(drm);
return ret;
}
@@ -354,8 +345,6 @@ static int v3d_platform_drm_remove(struct platform_device *pdev)
v3d_gem_destroy(drm);
- drm_dev_put(drm);
-
dma_free_wc(v3d->dev, 4096, v3d->mmu_scratch, v3d->mmu_scratch_paddr);
return 0;
--
2.25.1
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [Intel-gfx] [PATCH 12/44] drm/v3d: Use devm_drm_dev_alloc
@ 2020-04-03 13:57 ` Daniel Vetter
0 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:57 UTC (permalink / raw)
To: DRI Development
Cc: Eric Anholt, Daniel Vetter, Intel Graphics Development, Daniel Vetter
Also allows us to simplify the unroll code since the drm_dev_put
disappears.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Eric Anholt <eric@anholt.net>
---
drivers/gpu/drm/v3d/v3d_drv.c | 31 ++++++++++---------------------
1 file changed, 10 insertions(+), 21 deletions(-)
diff --git a/drivers/gpu/drm/v3d/v3d_drv.c b/drivers/gpu/drm/v3d/v3d_drv.c
index ead62a15d48f..f57d408ef371 100644
--- a/drivers/gpu/drm/v3d/v3d_drv.c
+++ b/drivers/gpu/drm/v3d/v3d_drv.c
@@ -251,29 +251,23 @@ static int v3d_platform_drm_probe(struct platform_device *pdev)
u32 ident1;
- v3d = kzalloc(sizeof(*v3d), GFP_KERNEL);
- if (!v3d)
- return -ENOMEM;
+ v3d = devm_drm_dev_alloc(dev, &v3d_drm_driver, struct v3d_dev, drm);
+ if (IS_ERR(v3d))
+ return PTR_ERR(v3d);
+
v3d->dev = dev;
v3d->pdev = pdev;
drm = &v3d->drm;
- ret = drm_dev_init(&v3d->drm, &v3d_drm_driver, dev);
- if (ret) {
- kfree(v3d);
- return ret;
- }
-
platform_set_drvdata(pdev, drm);
- drmm_add_final_kfree(drm, v3d);
ret = map_regs(v3d, &v3d->hub_regs, "hub");
if (ret)
- goto dev_destroy;
+ return ret;
ret = map_regs(v3d, &v3d->core_regs[0], "core0");
if (ret)
- goto dev_destroy;
+ return ret;
mmu_debug = V3D_READ(V3D_MMU_DEBUG_INFO);
dev->coherent_dma_mask =
@@ -291,29 +285,28 @@ static int v3d_platform_drm_probe(struct platform_device *pdev)
ret = PTR_ERR(v3d->reset);
if (ret == -EPROBE_DEFER)
- goto dev_destroy;
+ return ret;
v3d->reset = NULL;
ret = map_regs(v3d, &v3d->bridge_regs, "bridge");
if (ret) {
dev_err(dev,
"Failed to get reset control or bridge regs\n");
- goto dev_destroy;
+ return ret;
}
}
if (v3d->ver < 41) {
ret = map_regs(v3d, &v3d->gca_regs, "gca");
if (ret)
- goto dev_destroy;
+ return ret;
}
v3d->mmu_scratch = dma_alloc_wc(dev, 4096, &v3d->mmu_scratch_paddr,
GFP_KERNEL | __GFP_NOWARN | __GFP_ZERO);
if (!v3d->mmu_scratch) {
dev_err(dev, "Failed to allocate MMU scratch page\n");
- ret = -ENOMEM;
- goto dev_destroy;
+ return -ENOMEM;
}
pm_runtime_use_autosuspend(dev);
@@ -340,8 +333,6 @@ static int v3d_platform_drm_probe(struct platform_device *pdev)
v3d_gem_destroy(drm);
dma_free:
dma_free_wc(dev, 4096, v3d->mmu_scratch, v3d->mmu_scratch_paddr);
-dev_destroy:
- drm_dev_put(drm);
return ret;
}
@@ -354,8 +345,6 @@ static int v3d_platform_drm_remove(struct platform_device *pdev)
v3d_gem_destroy(drm);
- drm_dev_put(drm);
-
dma_free_wc(v3d->dev, 4096, v3d->mmu_scratch, v3d->mmu_scratch_paddr);
return 0;
--
2.25.1
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [PATCH 13/44] drm/v3d: Delete v3d_dev->dev
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-03 13:57 ` Daniel Vetter
-1 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:57 UTC (permalink / raw)
To: DRI Development; +Cc: Daniel Vetter, Intel Graphics Development, Daniel Vetter
We already have it in v3d_dev->drm.dev with zero additional pointer
chasing. Personally I don't like duplicated pointers like this
because:
- reviewers need to check whether the pointer is for the same or
different objects if there's multiple
- compilers have an easier time too
But also a bit a bikeshed, so feel free to ignore.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Eric Anholt <eric@anholt.net>
---
drivers/gpu/drm/v3d/v3d_debugfs.c | 12 ++++++------
drivers/gpu/drm/v3d/v3d_drv.c | 12 ++++++------
drivers/gpu/drm/v3d/v3d_drv.h | 2 --
drivers/gpu/drm/v3d/v3d_gem.c | 17 +++++++++--------
drivers/gpu/drm/v3d/v3d_irq.c | 12 ++++++------
drivers/gpu/drm/v3d/v3d_mmu.c | 10 +++++-----
drivers/gpu/drm/v3d/v3d_sched.c | 10 +++++-----
7 files changed, 37 insertions(+), 38 deletions(-)
diff --git a/drivers/gpu/drm/v3d/v3d_debugfs.c b/drivers/gpu/drm/v3d/v3d_debugfs.c
index 2b0ea5f8febd..e76b24bb8828 100644
--- a/drivers/gpu/drm/v3d/v3d_debugfs.c
+++ b/drivers/gpu/drm/v3d/v3d_debugfs.c
@@ -132,7 +132,7 @@ static int v3d_v3d_debugfs_ident(struct seq_file *m, void *unused)
u32 ident0, ident1, ident2, ident3, cores;
int ret, core;
- ret = pm_runtime_get_sync(v3d->dev);
+ ret = pm_runtime_get_sync(v3d->drm.dev);
if (ret < 0)
return ret;
@@ -187,8 +187,8 @@ static int v3d_v3d_debugfs_ident(struct seq_file *m, void *unused)
(misccfg & V3D_MISCCFG_OVRTMUOUT) != 0);
}
- pm_runtime_mark_last_busy(v3d->dev);
- pm_runtime_put_autosuspend(v3d->dev);
+ pm_runtime_mark_last_busy(v3d->drm.dev);
+ pm_runtime_put_autosuspend(v3d->drm.dev);
return 0;
}
@@ -219,7 +219,7 @@ static int v3d_measure_clock(struct seq_file *m, void *unused)
int measure_ms = 1000;
int ret;
- ret = pm_runtime_get_sync(v3d->dev);
+ ret = pm_runtime_get_sync(v3d->drm.dev);
if (ret < 0)
return ret;
@@ -245,8 +245,8 @@ static int v3d_measure_clock(struct seq_file *m, void *unused)
cycles / (measure_ms * 1000),
(cycles / (measure_ms * 100)) % 10);
- pm_runtime_mark_last_busy(v3d->dev);
- pm_runtime_put_autosuspend(v3d->dev);
+ pm_runtime_mark_last_busy(v3d->drm.dev);
+ pm_runtime_put_autosuspend(v3d->drm.dev);
return 0;
}
diff --git a/drivers/gpu/drm/v3d/v3d_drv.c b/drivers/gpu/drm/v3d/v3d_drv.c
index f57d408ef371..37cb880f2826 100644
--- a/drivers/gpu/drm/v3d/v3d_drv.c
+++ b/drivers/gpu/drm/v3d/v3d_drv.c
@@ -105,7 +105,7 @@ static int v3d_get_param_ioctl(struct drm_device *dev, void *data,
if (args->value != 0)
return -EINVAL;
- ret = pm_runtime_get_sync(v3d->dev);
+ ret = pm_runtime_get_sync(v3d->drm.dev);
if (ret < 0)
return ret;
if (args->param >= DRM_V3D_PARAM_V3D_CORE0_IDENT0 &&
@@ -114,8 +114,8 @@ static int v3d_get_param_ioctl(struct drm_device *dev, void *data,
} else {
args->value = V3D_READ(offset);
}
- pm_runtime_mark_last_busy(v3d->dev);
- pm_runtime_put_autosuspend(v3d->dev);
+ pm_runtime_mark_last_busy(v3d->drm.dev);
+ pm_runtime_put_autosuspend(v3d->drm.dev);
return 0;
}
@@ -237,7 +237,7 @@ map_regs(struct v3d_dev *v3d, void __iomem **regs, const char *name)
struct resource *res =
platform_get_resource_byname(v3d->pdev, IORESOURCE_MEM, name);
- *regs = devm_ioremap_resource(v3d->dev, res);
+ *regs = devm_ioremap_resource(v3d->drm.dev, res);
return PTR_ERR_OR_ZERO(*regs);
}
@@ -255,7 +255,6 @@ static int v3d_platform_drm_probe(struct platform_device *pdev)
if (IS_ERR(v3d))
return PTR_ERR(v3d);
- v3d->dev = dev;
v3d->pdev = pdev;
drm = &v3d->drm;
@@ -345,7 +344,8 @@ static int v3d_platform_drm_remove(struct platform_device *pdev)
v3d_gem_destroy(drm);
- dma_free_wc(v3d->dev, 4096, v3d->mmu_scratch, v3d->mmu_scratch_paddr);
+ dma_free_wc(v3d->drm.dev, 4096, v3d->mmu_scratch,
+ v3d->mmu_scratch_paddr);
return 0;
}
diff --git a/drivers/gpu/drm/v3d/v3d_drv.h b/drivers/gpu/drm/v3d/v3d_drv.h
index 112d80aed5f6..4d2d1f2fe1af 100644
--- a/drivers/gpu/drm/v3d/v3d_drv.h
+++ b/drivers/gpu/drm/v3d/v3d_drv.h
@@ -14,7 +14,6 @@
#include "uapi/drm/v3d_drm.h"
struct clk;
-struct device;
struct platform_device;
struct reset_control;
@@ -47,7 +46,6 @@ struct v3d_dev {
int ver;
bool single_irq_line;
- struct device *dev;
struct platform_device *pdev;
void __iomem *hub_regs;
void __iomem *core_regs[3];
diff --git a/drivers/gpu/drm/v3d/v3d_gem.c b/drivers/gpu/drm/v3d/v3d_gem.c
index 549dde83408b..09a7639cf161 100644
--- a/drivers/gpu/drm/v3d/v3d_gem.c
+++ b/drivers/gpu/drm/v3d/v3d_gem.c
@@ -370,8 +370,8 @@ v3d_job_free(struct kref *ref)
dma_fence_put(job->irq_fence);
dma_fence_put(job->done_fence);
- pm_runtime_mark_last_busy(job->v3d->dev);
- pm_runtime_put_autosuspend(job->v3d->dev);
+ pm_runtime_mark_last_busy(job->v3d->drm.dev);
+ pm_runtime_put_autosuspend(job->v3d->drm.dev);
kfree(job);
}
@@ -439,7 +439,7 @@ v3d_job_init(struct v3d_dev *v3d, struct drm_file *file_priv,
job->v3d = v3d;
job->free = free;
- ret = pm_runtime_get_sync(v3d->dev);
+ ret = pm_runtime_get_sync(v3d->drm.dev);
if (ret < 0)
return ret;
@@ -458,7 +458,7 @@ v3d_job_init(struct v3d_dev *v3d, struct drm_file *file_priv,
return 0;
fail:
xa_destroy(&job->deps);
- pm_runtime_put_autosuspend(v3d->dev);
+ pm_runtime_put_autosuspend(v3d->drm.dev);
return ret;
}
@@ -886,12 +886,12 @@ v3d_gem_init(struct drm_device *dev)
*/
drm_mm_init(&v3d->mm, 1, pt_size / sizeof(u32) - 1);
- v3d->pt = dma_alloc_wc(v3d->dev, pt_size,
+ v3d->pt = dma_alloc_wc(v3d->drm.dev, pt_size,
&v3d->pt_paddr,
GFP_KERNEL | __GFP_NOWARN | __GFP_ZERO);
if (!v3d->pt) {
drm_mm_takedown(&v3d->mm);
- dev_err(v3d->dev,
+ dev_err(v3d->drm.dev,
"Failed to allocate page tables. "
"Please ensure you have CMA enabled.\n");
return -ENOMEM;
@@ -903,7 +903,7 @@ v3d_gem_init(struct drm_device *dev)
ret = v3d_sched_init(v3d);
if (ret) {
drm_mm_takedown(&v3d->mm);
- dma_free_coherent(v3d->dev, 4096 * 1024, (void *)v3d->pt,
+ dma_free_coherent(v3d->drm.dev, 4096 * 1024, (void *)v3d->pt,
v3d->pt_paddr);
}
@@ -925,5 +925,6 @@ v3d_gem_destroy(struct drm_device *dev)
drm_mm_takedown(&v3d->mm);
- dma_free_coherent(v3d->dev, 4096 * 1024, (void *)v3d->pt, v3d->pt_paddr);
+ dma_free_coherent(v3d->drm.dev, 4096 * 1024, (void *)v3d->pt,
+ v3d->pt_paddr);
}
diff --git a/drivers/gpu/drm/v3d/v3d_irq.c b/drivers/gpu/drm/v3d/v3d_irq.c
index 662e67279a7b..f4ce6d057c90 100644
--- a/drivers/gpu/drm/v3d/v3d_irq.c
+++ b/drivers/gpu/drm/v3d/v3d_irq.c
@@ -128,7 +128,7 @@ v3d_irq(int irq, void *arg)
* always-allowed mode.
*/
if (intsts & V3D_INT_GMPV)
- dev_err(v3d->dev, "GMP violation\n");
+ dev_err(v3d->drm.dev, "GMP violation\n");
/* V3D 4.2 wires the hub and core IRQs together, so if we &
* didn't see the common one then check hub for MMU IRQs.
@@ -189,7 +189,7 @@ v3d_hub_irq(int irq, void *arg)
client = v3d41_axi_ids[axi_id];
}
- dev_err(v3d->dev, "MMU error from client %s (%d) at 0x%llx%s%s%s\n",
+ dev_err(v3d->drm.dev, "MMU error from client %s (%d) at 0x%llx%s%s%s\n",
client, axi_id, (long long)vio_addr,
((intsts & V3D_HUB_INT_MMU_WRV) ?
", write violation" : ""),
@@ -221,12 +221,12 @@ v3d_irq_init(struct v3d_dev *v3d)
if (irq1 == -EPROBE_DEFER)
return irq1;
if (irq1 > 0) {
- ret = devm_request_irq(v3d->dev, irq1,
+ ret = devm_request_irq(v3d->drm.dev, irq1,
v3d_irq, IRQF_SHARED,
"v3d_core0", v3d);
if (ret)
goto fail;
- ret = devm_request_irq(v3d->dev, platform_get_irq(v3d->pdev, 0),
+ ret = devm_request_irq(v3d->drm.dev, platform_get_irq(v3d->pdev, 0),
v3d_hub_irq, IRQF_SHARED,
"v3d_hub", v3d);
if (ret)
@@ -234,7 +234,7 @@ v3d_irq_init(struct v3d_dev *v3d)
} else {
v3d->single_irq_line = true;
- ret = devm_request_irq(v3d->dev, platform_get_irq(v3d->pdev, 0),
+ ret = devm_request_irq(v3d->drm.dev, platform_get_irq(v3d->pdev, 0),
v3d_irq, IRQF_SHARED,
"v3d", v3d);
if (ret)
@@ -246,7 +246,7 @@ v3d_irq_init(struct v3d_dev *v3d)
fail:
if (ret != -EPROBE_DEFER)
- dev_err(v3d->dev, "IRQ setup failed: %d\n", ret);
+ dev_err(v3d->drm.dev, "IRQ setup failed: %d\n", ret);
return ret;
}
diff --git a/drivers/gpu/drm/v3d/v3d_mmu.c b/drivers/gpu/drm/v3d/v3d_mmu.c
index 395e81d97163..3b81ea28c0bb 100644
--- a/drivers/gpu/drm/v3d/v3d_mmu.c
+++ b/drivers/gpu/drm/v3d/v3d_mmu.c
@@ -40,7 +40,7 @@ static int v3d_mmu_flush_all(struct v3d_dev *v3d)
ret = wait_for(!(V3D_READ(V3D_MMU_CTL) &
V3D_MMU_CTL_TLB_CLEARING), 100);
if (ret)
- dev_err(v3d->dev, "TLB clear wait idle pre-wait failed\n");
+ dev_err(v3d->drm.dev, "TLB clear wait idle pre-wait failed\n");
V3D_WRITE(V3D_MMU_CTL, V3D_READ(V3D_MMU_CTL) |
V3D_MMU_CTL_TLB_CLEAR);
@@ -52,14 +52,14 @@ static int v3d_mmu_flush_all(struct v3d_dev *v3d)
ret = wait_for(!(V3D_READ(V3D_MMU_CTL) &
V3D_MMU_CTL_TLB_CLEARING), 100);
if (ret) {
- dev_err(v3d->dev, "TLB clear wait idle failed\n");
+ dev_err(v3d->drm.dev, "TLB clear wait idle failed\n");
return ret;
}
ret = wait_for(!(V3D_READ(V3D_MMUC_CONTROL) &
V3D_MMUC_CONTROL_FLUSHING), 100);
if (ret)
- dev_err(v3d->dev, "MMUC flush wait idle failed\n");
+ dev_err(v3d->drm.dev, "MMUC flush wait idle failed\n");
return ret;
}
@@ -109,7 +109,7 @@ void v3d_mmu_insert_ptes(struct v3d_bo *bo)
shmem_obj->base.size >> V3D_MMU_PAGE_SHIFT);
if (v3d_mmu_flush_all(v3d))
- dev_err(v3d->dev, "MMU flush timeout\n");
+ dev_err(v3d->drm.dev, "MMU flush timeout\n");
}
void v3d_mmu_remove_ptes(struct v3d_bo *bo)
@@ -122,5 +122,5 @@ void v3d_mmu_remove_ptes(struct v3d_bo *bo)
v3d->pt[page] = 0;
if (v3d_mmu_flush_all(v3d))
- dev_err(v3d->dev, "MMU flush timeout\n");
+ dev_err(v3d->drm.dev, "MMU flush timeout\n");
}
diff --git a/drivers/gpu/drm/v3d/v3d_sched.c b/drivers/gpu/drm/v3d/v3d_sched.c
index 8c2df6d95283..0747614a78f0 100644
--- a/drivers/gpu/drm/v3d/v3d_sched.c
+++ b/drivers/gpu/drm/v3d/v3d_sched.c
@@ -403,7 +403,7 @@ v3d_sched_init(struct v3d_dev *v3d)
msecs_to_jiffies(hang_limit_ms),
"v3d_bin");
if (ret) {
- dev_err(v3d->dev, "Failed to create bin scheduler: %d.", ret);
+ dev_err(v3d->drm.dev, "Failed to create bin scheduler: %d.", ret);
return ret;
}
@@ -413,7 +413,7 @@ v3d_sched_init(struct v3d_dev *v3d)
msecs_to_jiffies(hang_limit_ms),
"v3d_render");
if (ret) {
- dev_err(v3d->dev, "Failed to create render scheduler: %d.",
+ dev_err(v3d->drm.dev, "Failed to create render scheduler: %d.",
ret);
v3d_sched_fini(v3d);
return ret;
@@ -425,7 +425,7 @@ v3d_sched_init(struct v3d_dev *v3d)
msecs_to_jiffies(hang_limit_ms),
"v3d_tfu");
if (ret) {
- dev_err(v3d->dev, "Failed to create TFU scheduler: %d.",
+ dev_err(v3d->drm.dev, "Failed to create TFU scheduler: %d.",
ret);
v3d_sched_fini(v3d);
return ret;
@@ -438,7 +438,7 @@ v3d_sched_init(struct v3d_dev *v3d)
msecs_to_jiffies(hang_limit_ms),
"v3d_csd");
if (ret) {
- dev_err(v3d->dev, "Failed to create CSD scheduler: %d.",
+ dev_err(v3d->drm.dev, "Failed to create CSD scheduler: %d.",
ret);
v3d_sched_fini(v3d);
return ret;
@@ -450,7 +450,7 @@ v3d_sched_init(struct v3d_dev *v3d)
msecs_to_jiffies(hang_limit_ms),
"v3d_cache_clean");
if (ret) {
- dev_err(v3d->dev, "Failed to create CACHE_CLEAN scheduler: %d.",
+ dev_err(v3d->drm.dev, "Failed to create CACHE_CLEAN scheduler: %d.",
ret);
v3d_sched_fini(v3d);
return ret;
--
2.25.1
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [Intel-gfx] [PATCH 13/44] drm/v3d: Delete v3d_dev->dev
@ 2020-04-03 13:57 ` Daniel Vetter
0 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:57 UTC (permalink / raw)
To: DRI Development
Cc: Eric Anholt, Daniel Vetter, Intel Graphics Development, Daniel Vetter
We already have it in v3d_dev->drm.dev with zero additional pointer
chasing. Personally I don't like duplicated pointers like this
because:
- reviewers need to check whether the pointer is for the same or
different objects if there's multiple
- compilers have an easier time too
But also a bit a bikeshed, so feel free to ignore.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Eric Anholt <eric@anholt.net>
---
drivers/gpu/drm/v3d/v3d_debugfs.c | 12 ++++++------
drivers/gpu/drm/v3d/v3d_drv.c | 12 ++++++------
drivers/gpu/drm/v3d/v3d_drv.h | 2 --
drivers/gpu/drm/v3d/v3d_gem.c | 17 +++++++++--------
drivers/gpu/drm/v3d/v3d_irq.c | 12 ++++++------
drivers/gpu/drm/v3d/v3d_mmu.c | 10 +++++-----
drivers/gpu/drm/v3d/v3d_sched.c | 10 +++++-----
7 files changed, 37 insertions(+), 38 deletions(-)
diff --git a/drivers/gpu/drm/v3d/v3d_debugfs.c b/drivers/gpu/drm/v3d/v3d_debugfs.c
index 2b0ea5f8febd..e76b24bb8828 100644
--- a/drivers/gpu/drm/v3d/v3d_debugfs.c
+++ b/drivers/gpu/drm/v3d/v3d_debugfs.c
@@ -132,7 +132,7 @@ static int v3d_v3d_debugfs_ident(struct seq_file *m, void *unused)
u32 ident0, ident1, ident2, ident3, cores;
int ret, core;
- ret = pm_runtime_get_sync(v3d->dev);
+ ret = pm_runtime_get_sync(v3d->drm.dev);
if (ret < 0)
return ret;
@@ -187,8 +187,8 @@ static int v3d_v3d_debugfs_ident(struct seq_file *m, void *unused)
(misccfg & V3D_MISCCFG_OVRTMUOUT) != 0);
}
- pm_runtime_mark_last_busy(v3d->dev);
- pm_runtime_put_autosuspend(v3d->dev);
+ pm_runtime_mark_last_busy(v3d->drm.dev);
+ pm_runtime_put_autosuspend(v3d->drm.dev);
return 0;
}
@@ -219,7 +219,7 @@ static int v3d_measure_clock(struct seq_file *m, void *unused)
int measure_ms = 1000;
int ret;
- ret = pm_runtime_get_sync(v3d->dev);
+ ret = pm_runtime_get_sync(v3d->drm.dev);
if (ret < 0)
return ret;
@@ -245,8 +245,8 @@ static int v3d_measure_clock(struct seq_file *m, void *unused)
cycles / (measure_ms * 1000),
(cycles / (measure_ms * 100)) % 10);
- pm_runtime_mark_last_busy(v3d->dev);
- pm_runtime_put_autosuspend(v3d->dev);
+ pm_runtime_mark_last_busy(v3d->drm.dev);
+ pm_runtime_put_autosuspend(v3d->drm.dev);
return 0;
}
diff --git a/drivers/gpu/drm/v3d/v3d_drv.c b/drivers/gpu/drm/v3d/v3d_drv.c
index f57d408ef371..37cb880f2826 100644
--- a/drivers/gpu/drm/v3d/v3d_drv.c
+++ b/drivers/gpu/drm/v3d/v3d_drv.c
@@ -105,7 +105,7 @@ static int v3d_get_param_ioctl(struct drm_device *dev, void *data,
if (args->value != 0)
return -EINVAL;
- ret = pm_runtime_get_sync(v3d->dev);
+ ret = pm_runtime_get_sync(v3d->drm.dev);
if (ret < 0)
return ret;
if (args->param >= DRM_V3D_PARAM_V3D_CORE0_IDENT0 &&
@@ -114,8 +114,8 @@ static int v3d_get_param_ioctl(struct drm_device *dev, void *data,
} else {
args->value = V3D_READ(offset);
}
- pm_runtime_mark_last_busy(v3d->dev);
- pm_runtime_put_autosuspend(v3d->dev);
+ pm_runtime_mark_last_busy(v3d->drm.dev);
+ pm_runtime_put_autosuspend(v3d->drm.dev);
return 0;
}
@@ -237,7 +237,7 @@ map_regs(struct v3d_dev *v3d, void __iomem **regs, const char *name)
struct resource *res =
platform_get_resource_byname(v3d->pdev, IORESOURCE_MEM, name);
- *regs = devm_ioremap_resource(v3d->dev, res);
+ *regs = devm_ioremap_resource(v3d->drm.dev, res);
return PTR_ERR_OR_ZERO(*regs);
}
@@ -255,7 +255,6 @@ static int v3d_platform_drm_probe(struct platform_device *pdev)
if (IS_ERR(v3d))
return PTR_ERR(v3d);
- v3d->dev = dev;
v3d->pdev = pdev;
drm = &v3d->drm;
@@ -345,7 +344,8 @@ static int v3d_platform_drm_remove(struct platform_device *pdev)
v3d_gem_destroy(drm);
- dma_free_wc(v3d->dev, 4096, v3d->mmu_scratch, v3d->mmu_scratch_paddr);
+ dma_free_wc(v3d->drm.dev, 4096, v3d->mmu_scratch,
+ v3d->mmu_scratch_paddr);
return 0;
}
diff --git a/drivers/gpu/drm/v3d/v3d_drv.h b/drivers/gpu/drm/v3d/v3d_drv.h
index 112d80aed5f6..4d2d1f2fe1af 100644
--- a/drivers/gpu/drm/v3d/v3d_drv.h
+++ b/drivers/gpu/drm/v3d/v3d_drv.h
@@ -14,7 +14,6 @@
#include "uapi/drm/v3d_drm.h"
struct clk;
-struct device;
struct platform_device;
struct reset_control;
@@ -47,7 +46,6 @@ struct v3d_dev {
int ver;
bool single_irq_line;
- struct device *dev;
struct platform_device *pdev;
void __iomem *hub_regs;
void __iomem *core_regs[3];
diff --git a/drivers/gpu/drm/v3d/v3d_gem.c b/drivers/gpu/drm/v3d/v3d_gem.c
index 549dde83408b..09a7639cf161 100644
--- a/drivers/gpu/drm/v3d/v3d_gem.c
+++ b/drivers/gpu/drm/v3d/v3d_gem.c
@@ -370,8 +370,8 @@ v3d_job_free(struct kref *ref)
dma_fence_put(job->irq_fence);
dma_fence_put(job->done_fence);
- pm_runtime_mark_last_busy(job->v3d->dev);
- pm_runtime_put_autosuspend(job->v3d->dev);
+ pm_runtime_mark_last_busy(job->v3d->drm.dev);
+ pm_runtime_put_autosuspend(job->v3d->drm.dev);
kfree(job);
}
@@ -439,7 +439,7 @@ v3d_job_init(struct v3d_dev *v3d, struct drm_file *file_priv,
job->v3d = v3d;
job->free = free;
- ret = pm_runtime_get_sync(v3d->dev);
+ ret = pm_runtime_get_sync(v3d->drm.dev);
if (ret < 0)
return ret;
@@ -458,7 +458,7 @@ v3d_job_init(struct v3d_dev *v3d, struct drm_file *file_priv,
return 0;
fail:
xa_destroy(&job->deps);
- pm_runtime_put_autosuspend(v3d->dev);
+ pm_runtime_put_autosuspend(v3d->drm.dev);
return ret;
}
@@ -886,12 +886,12 @@ v3d_gem_init(struct drm_device *dev)
*/
drm_mm_init(&v3d->mm, 1, pt_size / sizeof(u32) - 1);
- v3d->pt = dma_alloc_wc(v3d->dev, pt_size,
+ v3d->pt = dma_alloc_wc(v3d->drm.dev, pt_size,
&v3d->pt_paddr,
GFP_KERNEL | __GFP_NOWARN | __GFP_ZERO);
if (!v3d->pt) {
drm_mm_takedown(&v3d->mm);
- dev_err(v3d->dev,
+ dev_err(v3d->drm.dev,
"Failed to allocate page tables. "
"Please ensure you have CMA enabled.\n");
return -ENOMEM;
@@ -903,7 +903,7 @@ v3d_gem_init(struct drm_device *dev)
ret = v3d_sched_init(v3d);
if (ret) {
drm_mm_takedown(&v3d->mm);
- dma_free_coherent(v3d->dev, 4096 * 1024, (void *)v3d->pt,
+ dma_free_coherent(v3d->drm.dev, 4096 * 1024, (void *)v3d->pt,
v3d->pt_paddr);
}
@@ -925,5 +925,6 @@ v3d_gem_destroy(struct drm_device *dev)
drm_mm_takedown(&v3d->mm);
- dma_free_coherent(v3d->dev, 4096 * 1024, (void *)v3d->pt, v3d->pt_paddr);
+ dma_free_coherent(v3d->drm.dev, 4096 * 1024, (void *)v3d->pt,
+ v3d->pt_paddr);
}
diff --git a/drivers/gpu/drm/v3d/v3d_irq.c b/drivers/gpu/drm/v3d/v3d_irq.c
index 662e67279a7b..f4ce6d057c90 100644
--- a/drivers/gpu/drm/v3d/v3d_irq.c
+++ b/drivers/gpu/drm/v3d/v3d_irq.c
@@ -128,7 +128,7 @@ v3d_irq(int irq, void *arg)
* always-allowed mode.
*/
if (intsts & V3D_INT_GMPV)
- dev_err(v3d->dev, "GMP violation\n");
+ dev_err(v3d->drm.dev, "GMP violation\n");
/* V3D 4.2 wires the hub and core IRQs together, so if we &
* didn't see the common one then check hub for MMU IRQs.
@@ -189,7 +189,7 @@ v3d_hub_irq(int irq, void *arg)
client = v3d41_axi_ids[axi_id];
}
- dev_err(v3d->dev, "MMU error from client %s (%d) at 0x%llx%s%s%s\n",
+ dev_err(v3d->drm.dev, "MMU error from client %s (%d) at 0x%llx%s%s%s\n",
client, axi_id, (long long)vio_addr,
((intsts & V3D_HUB_INT_MMU_WRV) ?
", write violation" : ""),
@@ -221,12 +221,12 @@ v3d_irq_init(struct v3d_dev *v3d)
if (irq1 == -EPROBE_DEFER)
return irq1;
if (irq1 > 0) {
- ret = devm_request_irq(v3d->dev, irq1,
+ ret = devm_request_irq(v3d->drm.dev, irq1,
v3d_irq, IRQF_SHARED,
"v3d_core0", v3d);
if (ret)
goto fail;
- ret = devm_request_irq(v3d->dev, platform_get_irq(v3d->pdev, 0),
+ ret = devm_request_irq(v3d->drm.dev, platform_get_irq(v3d->pdev, 0),
v3d_hub_irq, IRQF_SHARED,
"v3d_hub", v3d);
if (ret)
@@ -234,7 +234,7 @@ v3d_irq_init(struct v3d_dev *v3d)
} else {
v3d->single_irq_line = true;
- ret = devm_request_irq(v3d->dev, platform_get_irq(v3d->pdev, 0),
+ ret = devm_request_irq(v3d->drm.dev, platform_get_irq(v3d->pdev, 0),
v3d_irq, IRQF_SHARED,
"v3d", v3d);
if (ret)
@@ -246,7 +246,7 @@ v3d_irq_init(struct v3d_dev *v3d)
fail:
if (ret != -EPROBE_DEFER)
- dev_err(v3d->dev, "IRQ setup failed: %d\n", ret);
+ dev_err(v3d->drm.dev, "IRQ setup failed: %d\n", ret);
return ret;
}
diff --git a/drivers/gpu/drm/v3d/v3d_mmu.c b/drivers/gpu/drm/v3d/v3d_mmu.c
index 395e81d97163..3b81ea28c0bb 100644
--- a/drivers/gpu/drm/v3d/v3d_mmu.c
+++ b/drivers/gpu/drm/v3d/v3d_mmu.c
@@ -40,7 +40,7 @@ static int v3d_mmu_flush_all(struct v3d_dev *v3d)
ret = wait_for(!(V3D_READ(V3D_MMU_CTL) &
V3D_MMU_CTL_TLB_CLEARING), 100);
if (ret)
- dev_err(v3d->dev, "TLB clear wait idle pre-wait failed\n");
+ dev_err(v3d->drm.dev, "TLB clear wait idle pre-wait failed\n");
V3D_WRITE(V3D_MMU_CTL, V3D_READ(V3D_MMU_CTL) |
V3D_MMU_CTL_TLB_CLEAR);
@@ -52,14 +52,14 @@ static int v3d_mmu_flush_all(struct v3d_dev *v3d)
ret = wait_for(!(V3D_READ(V3D_MMU_CTL) &
V3D_MMU_CTL_TLB_CLEARING), 100);
if (ret) {
- dev_err(v3d->dev, "TLB clear wait idle failed\n");
+ dev_err(v3d->drm.dev, "TLB clear wait idle failed\n");
return ret;
}
ret = wait_for(!(V3D_READ(V3D_MMUC_CONTROL) &
V3D_MMUC_CONTROL_FLUSHING), 100);
if (ret)
- dev_err(v3d->dev, "MMUC flush wait idle failed\n");
+ dev_err(v3d->drm.dev, "MMUC flush wait idle failed\n");
return ret;
}
@@ -109,7 +109,7 @@ void v3d_mmu_insert_ptes(struct v3d_bo *bo)
shmem_obj->base.size >> V3D_MMU_PAGE_SHIFT);
if (v3d_mmu_flush_all(v3d))
- dev_err(v3d->dev, "MMU flush timeout\n");
+ dev_err(v3d->drm.dev, "MMU flush timeout\n");
}
void v3d_mmu_remove_ptes(struct v3d_bo *bo)
@@ -122,5 +122,5 @@ void v3d_mmu_remove_ptes(struct v3d_bo *bo)
v3d->pt[page] = 0;
if (v3d_mmu_flush_all(v3d))
- dev_err(v3d->dev, "MMU flush timeout\n");
+ dev_err(v3d->drm.dev, "MMU flush timeout\n");
}
diff --git a/drivers/gpu/drm/v3d/v3d_sched.c b/drivers/gpu/drm/v3d/v3d_sched.c
index 8c2df6d95283..0747614a78f0 100644
--- a/drivers/gpu/drm/v3d/v3d_sched.c
+++ b/drivers/gpu/drm/v3d/v3d_sched.c
@@ -403,7 +403,7 @@ v3d_sched_init(struct v3d_dev *v3d)
msecs_to_jiffies(hang_limit_ms),
"v3d_bin");
if (ret) {
- dev_err(v3d->dev, "Failed to create bin scheduler: %d.", ret);
+ dev_err(v3d->drm.dev, "Failed to create bin scheduler: %d.", ret);
return ret;
}
@@ -413,7 +413,7 @@ v3d_sched_init(struct v3d_dev *v3d)
msecs_to_jiffies(hang_limit_ms),
"v3d_render");
if (ret) {
- dev_err(v3d->dev, "Failed to create render scheduler: %d.",
+ dev_err(v3d->drm.dev, "Failed to create render scheduler: %d.",
ret);
v3d_sched_fini(v3d);
return ret;
@@ -425,7 +425,7 @@ v3d_sched_init(struct v3d_dev *v3d)
msecs_to_jiffies(hang_limit_ms),
"v3d_tfu");
if (ret) {
- dev_err(v3d->dev, "Failed to create TFU scheduler: %d.",
+ dev_err(v3d->drm.dev, "Failed to create TFU scheduler: %d.",
ret);
v3d_sched_fini(v3d);
return ret;
@@ -438,7 +438,7 @@ v3d_sched_init(struct v3d_dev *v3d)
msecs_to_jiffies(hang_limit_ms),
"v3d_csd");
if (ret) {
- dev_err(v3d->dev, "Failed to create CSD scheduler: %d.",
+ dev_err(v3d->drm.dev, "Failed to create CSD scheduler: %d.",
ret);
v3d_sched_fini(v3d);
return ret;
@@ -450,7 +450,7 @@ v3d_sched_init(struct v3d_dev *v3d)
msecs_to_jiffies(hang_limit_ms),
"v3d_cache_clean");
if (ret) {
- dev_err(v3d->dev, "Failed to create CACHE_CLEAN scheduler: %d.",
+ dev_err(v3d->drm.dev, "Failed to create CACHE_CLEAN scheduler: %d.",
ret);
v3d_sched_fini(v3d);
return ret;
--
2.25.1
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [PATCH 14/44] drm/v3d: Delete v3d_dev->pdev
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-03 13:57 ` Daniel Vetter
-1 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:57 UTC (permalink / raw)
To: DRI Development; +Cc: Daniel Vetter, Intel Graphics Development, Daniel Vetter
We already have it in v3d_dev->drm.dev with zero additional pointer
chasing. Personally I don't like duplicated pointers like this
because:
- reviewers need to check whether the pointer is for the same or
different objects if there's multiple
- compilers have an easier time too
To avoid having to pull in some big headers I implemented the casting
function as a macro instead of a static inline. Typechecking thanks to
container_of still assured.
But also a bit a bikeshed, so feel free to ignore.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Eric Anholt <eric@anholt.net>
---
drivers/gpu/drm/v3d/v3d_drv.c | 3 +--
drivers/gpu/drm/v3d/v3d_drv.h | 3 ++-
drivers/gpu/drm/v3d/v3d_irq.c | 8 +++++---
3 files changed, 8 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/v3d/v3d_drv.c b/drivers/gpu/drm/v3d/v3d_drv.c
index 37cb880f2826..82a7dfdd14c2 100644
--- a/drivers/gpu/drm/v3d/v3d_drv.c
+++ b/drivers/gpu/drm/v3d/v3d_drv.c
@@ -235,7 +235,7 @@ static int
map_regs(struct v3d_dev *v3d, void __iomem **regs, const char *name)
{
struct resource *res =
- platform_get_resource_byname(v3d->pdev, IORESOURCE_MEM, name);
+ platform_get_resource_byname(v3d_to_pdev(v3d), IORESOURCE_MEM, name);
*regs = devm_ioremap_resource(v3d->drm.dev, res);
return PTR_ERR_OR_ZERO(*regs);
@@ -255,7 +255,6 @@ static int v3d_platform_drm_probe(struct platform_device *pdev)
if (IS_ERR(v3d))
return PTR_ERR(v3d);
- v3d->pdev = pdev;
drm = &v3d->drm;
platform_set_drvdata(pdev, drm);
diff --git a/drivers/gpu/drm/v3d/v3d_drv.h b/drivers/gpu/drm/v3d/v3d_drv.h
index 4d2d1f2fe1af..935f23b524b2 100644
--- a/drivers/gpu/drm/v3d/v3d_drv.h
+++ b/drivers/gpu/drm/v3d/v3d_drv.h
@@ -46,7 +46,6 @@ struct v3d_dev {
int ver;
bool single_irq_line;
- struct platform_device *pdev;
void __iomem *hub_regs;
void __iomem *core_regs[3];
void __iomem *bridge_regs;
@@ -128,6 +127,8 @@ v3d_has_csd(struct v3d_dev *v3d)
return v3d->ver >= 41;
}
+#define v3d_to_pdev(v3d) to_platform_device(v3d->drm.dev)
+
/* The per-fd struct, which tracks the MMU mappings. */
struct v3d_file_priv {
struct v3d_dev *v3d;
diff --git a/drivers/gpu/drm/v3d/v3d_irq.c b/drivers/gpu/drm/v3d/v3d_irq.c
index f4ce6d057c90..51b65263c657 100644
--- a/drivers/gpu/drm/v3d/v3d_irq.c
+++ b/drivers/gpu/drm/v3d/v3d_irq.c
@@ -217,7 +217,7 @@ v3d_irq_init(struct v3d_dev *v3d)
V3D_CORE_WRITE(core, V3D_CTL_INT_CLR, V3D_CORE_IRQS);
V3D_WRITE(V3D_HUB_INT_CLR, V3D_HUB_IRQS);
- irq1 = platform_get_irq(v3d->pdev, 1);
+ irq1 = platform_get_irq(v3d_to_pdev(v3d), 1);
if (irq1 == -EPROBE_DEFER)
return irq1;
if (irq1 > 0) {
@@ -226,7 +226,8 @@ v3d_irq_init(struct v3d_dev *v3d)
"v3d_core0", v3d);
if (ret)
goto fail;
- ret = devm_request_irq(v3d->drm.dev, platform_get_irq(v3d->pdev, 0),
+ ret = devm_request_irq(v3d->drm.dev,
+ platform_get_irq(v3d_to_pdev(v3d), 0),
v3d_hub_irq, IRQF_SHARED,
"v3d_hub", v3d);
if (ret)
@@ -234,7 +235,8 @@ v3d_irq_init(struct v3d_dev *v3d)
} else {
v3d->single_irq_line = true;
- ret = devm_request_irq(v3d->drm.dev, platform_get_irq(v3d->pdev, 0),
+ ret = devm_request_irq(v3d->drm.dev,
+ platform_get_irq(v3d_to_pdev(v3d), 0),
v3d_irq, IRQF_SHARED,
"v3d", v3d);
if (ret)
--
2.25.1
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [Intel-gfx] [PATCH 14/44] drm/v3d: Delete v3d_dev->pdev
@ 2020-04-03 13:57 ` Daniel Vetter
0 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:57 UTC (permalink / raw)
To: DRI Development
Cc: Eric Anholt, Daniel Vetter, Intel Graphics Development, Daniel Vetter
We already have it in v3d_dev->drm.dev with zero additional pointer
chasing. Personally I don't like duplicated pointers like this
because:
- reviewers need to check whether the pointer is for the same or
different objects if there's multiple
- compilers have an easier time too
To avoid having to pull in some big headers I implemented the casting
function as a macro instead of a static inline. Typechecking thanks to
container_of still assured.
But also a bit a bikeshed, so feel free to ignore.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Eric Anholt <eric@anholt.net>
---
drivers/gpu/drm/v3d/v3d_drv.c | 3 +--
drivers/gpu/drm/v3d/v3d_drv.h | 3 ++-
drivers/gpu/drm/v3d/v3d_irq.c | 8 +++++---
3 files changed, 8 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/v3d/v3d_drv.c b/drivers/gpu/drm/v3d/v3d_drv.c
index 37cb880f2826..82a7dfdd14c2 100644
--- a/drivers/gpu/drm/v3d/v3d_drv.c
+++ b/drivers/gpu/drm/v3d/v3d_drv.c
@@ -235,7 +235,7 @@ static int
map_regs(struct v3d_dev *v3d, void __iomem **regs, const char *name)
{
struct resource *res =
- platform_get_resource_byname(v3d->pdev, IORESOURCE_MEM, name);
+ platform_get_resource_byname(v3d_to_pdev(v3d), IORESOURCE_MEM, name);
*regs = devm_ioremap_resource(v3d->drm.dev, res);
return PTR_ERR_OR_ZERO(*regs);
@@ -255,7 +255,6 @@ static int v3d_platform_drm_probe(struct platform_device *pdev)
if (IS_ERR(v3d))
return PTR_ERR(v3d);
- v3d->pdev = pdev;
drm = &v3d->drm;
platform_set_drvdata(pdev, drm);
diff --git a/drivers/gpu/drm/v3d/v3d_drv.h b/drivers/gpu/drm/v3d/v3d_drv.h
index 4d2d1f2fe1af..935f23b524b2 100644
--- a/drivers/gpu/drm/v3d/v3d_drv.h
+++ b/drivers/gpu/drm/v3d/v3d_drv.h
@@ -46,7 +46,6 @@ struct v3d_dev {
int ver;
bool single_irq_line;
- struct platform_device *pdev;
void __iomem *hub_regs;
void __iomem *core_regs[3];
void __iomem *bridge_regs;
@@ -128,6 +127,8 @@ v3d_has_csd(struct v3d_dev *v3d)
return v3d->ver >= 41;
}
+#define v3d_to_pdev(v3d) to_platform_device(v3d->drm.dev)
+
/* The per-fd struct, which tracks the MMU mappings. */
struct v3d_file_priv {
struct v3d_dev *v3d;
diff --git a/drivers/gpu/drm/v3d/v3d_irq.c b/drivers/gpu/drm/v3d/v3d_irq.c
index f4ce6d057c90..51b65263c657 100644
--- a/drivers/gpu/drm/v3d/v3d_irq.c
+++ b/drivers/gpu/drm/v3d/v3d_irq.c
@@ -217,7 +217,7 @@ v3d_irq_init(struct v3d_dev *v3d)
V3D_CORE_WRITE(core, V3D_CTL_INT_CLR, V3D_CORE_IRQS);
V3D_WRITE(V3D_HUB_INT_CLR, V3D_HUB_IRQS);
- irq1 = platform_get_irq(v3d->pdev, 1);
+ irq1 = platform_get_irq(v3d_to_pdev(v3d), 1);
if (irq1 == -EPROBE_DEFER)
return irq1;
if (irq1 > 0) {
@@ -226,7 +226,8 @@ v3d_irq_init(struct v3d_dev *v3d)
"v3d_core0", v3d);
if (ret)
goto fail;
- ret = devm_request_irq(v3d->drm.dev, platform_get_irq(v3d->pdev, 0),
+ ret = devm_request_irq(v3d->drm.dev,
+ platform_get_irq(v3d_to_pdev(v3d), 0),
v3d_hub_irq, IRQF_SHARED,
"v3d_hub", v3d);
if (ret)
@@ -234,7 +235,8 @@ v3d_irq_init(struct v3d_dev *v3d)
} else {
v3d->single_irq_line = true;
- ret = devm_request_irq(v3d->drm.dev, platform_get_irq(v3d->pdev, 0),
+ ret = devm_request_irq(v3d->drm.dev,
+ platform_get_irq(v3d_to_pdev(v3d), 0),
v3d_irq, IRQF_SHARED,
"v3d", v3d);
if (ret)
--
2.25.1
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [PATCH 15/44] drm/udl: Use demv_drm_dev_alloc
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-03 13:57 ` Daniel Vetter
-1 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:57 UTC (permalink / raw)
To: DRI Development
Cc: Sam Ravnborg, Daniel Vetter, Intel Graphics Development,
Emil Velikov, Thomas Zimmermann, Daniel Vetter, Dave Airlie,
Thomas Gleixner, Sean Paul
Also init the fbdev emulation before we register the device, that way
we can rely on the auto-cleanup and simplify the probe error code even
more.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Dave Airlie <airlied@redhat.com>
Cc: Sean Paul <sean@poorly.run>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Emil Velikov <emil.l.velikov@gmail.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
---
drivers/gpu/drm/udl/udl_drv.c | 36 +++++++++++------------------------
1 file changed, 11 insertions(+), 25 deletions(-)
diff --git a/drivers/gpu/drm/udl/udl_drv.c b/drivers/gpu/drm/udl/udl_drv.c
index 1ce2d865c36d..4ba5149fdd57 100644
--- a/drivers/gpu/drm/udl/udl_drv.c
+++ b/drivers/gpu/drm/udl/udl_drv.c
@@ -57,27 +57,20 @@ static struct udl_device *udl_driver_create(struct usb_interface *interface)
struct udl_device *udl;
int r;
- udl = kzalloc(sizeof(*udl), GFP_KERNEL);
- if (!udl)
- return ERR_PTR(-ENOMEM);
-
- r = drm_dev_init(&udl->drm, &driver, &interface->dev);
- if (r) {
- kfree(udl);
- return ERR_PTR(r);
- }
+ udl = devm_drm_dev_alloc(&interface->dev, &driver,
+ struct udl_device, drm);
+ if (IS_ERR(udl))
+ return udl;
udl->udev = udev;
udl->drm.dev_private = udl;
- drmm_add_final_kfree(&udl->drm, udl);
r = udl_init(udl);
- if (r) {
- drm_dev_put(&udl->drm);
+ if (r)
return ERR_PTR(r);
- }
usb_set_intfdata(interface, udl);
+
return udl;
}
@@ -91,23 +84,17 @@ static int udl_usb_probe(struct usb_interface *interface,
if (IS_ERR(udl))
return PTR_ERR(udl);
+ r = drm_fbdev_generic_setup(&udl->drm, 0);
+ if (r)
+ return r;
+
r = drm_dev_register(&udl->drm, 0);
if (r)
- goto err_free;
+ return r;
DRM_INFO("Initialized udl on minor %d\n", udl->drm.primary->index);
- r = drm_fbdev_generic_setup(&udl->drm, 0);
- if (r)
- goto err_drm_dev_unregister;
-
return 0;
-
-err_drm_dev_unregister:
- drm_dev_unregister(&udl->drm);
-err_free:
- drm_dev_put(&udl->drm);
- return r;
}
static void udl_usb_disconnect(struct usb_interface *interface)
@@ -117,7 +104,6 @@ static void udl_usb_disconnect(struct usb_interface *interface)
drm_kms_helper_poll_fini(dev);
udl_drop_usb(dev);
drm_dev_unplug(dev);
- drm_dev_put(dev);
}
/*
--
2.25.1
_______________________________________________
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dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [Intel-gfx] [PATCH 15/44] drm/udl: Use demv_drm_dev_alloc
@ 2020-04-03 13:57 ` Daniel Vetter
0 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:57 UTC (permalink / raw)
To: DRI Development
Cc: Sam Ravnborg, Daniel Vetter, Intel Graphics Development,
Thomas Zimmermann, Daniel Vetter, Dave Airlie, Thomas Gleixner
Also init the fbdev emulation before we register the device, that way
we can rely on the auto-cleanup and simplify the probe error code even
more.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Dave Airlie <airlied@redhat.com>
Cc: Sean Paul <sean@poorly.run>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Emil Velikov <emil.l.velikov@gmail.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
---
drivers/gpu/drm/udl/udl_drv.c | 36 +++++++++++------------------------
1 file changed, 11 insertions(+), 25 deletions(-)
diff --git a/drivers/gpu/drm/udl/udl_drv.c b/drivers/gpu/drm/udl/udl_drv.c
index 1ce2d865c36d..4ba5149fdd57 100644
--- a/drivers/gpu/drm/udl/udl_drv.c
+++ b/drivers/gpu/drm/udl/udl_drv.c
@@ -57,27 +57,20 @@ static struct udl_device *udl_driver_create(struct usb_interface *interface)
struct udl_device *udl;
int r;
- udl = kzalloc(sizeof(*udl), GFP_KERNEL);
- if (!udl)
- return ERR_PTR(-ENOMEM);
-
- r = drm_dev_init(&udl->drm, &driver, &interface->dev);
- if (r) {
- kfree(udl);
- return ERR_PTR(r);
- }
+ udl = devm_drm_dev_alloc(&interface->dev, &driver,
+ struct udl_device, drm);
+ if (IS_ERR(udl))
+ return udl;
udl->udev = udev;
udl->drm.dev_private = udl;
- drmm_add_final_kfree(&udl->drm, udl);
r = udl_init(udl);
- if (r) {
- drm_dev_put(&udl->drm);
+ if (r)
return ERR_PTR(r);
- }
usb_set_intfdata(interface, udl);
+
return udl;
}
@@ -91,23 +84,17 @@ static int udl_usb_probe(struct usb_interface *interface,
if (IS_ERR(udl))
return PTR_ERR(udl);
+ r = drm_fbdev_generic_setup(&udl->drm, 0);
+ if (r)
+ return r;
+
r = drm_dev_register(&udl->drm, 0);
if (r)
- goto err_free;
+ return r;
DRM_INFO("Initialized udl on minor %d\n", udl->drm.primary->index);
- r = drm_fbdev_generic_setup(&udl->drm, 0);
- if (r)
- goto err_drm_dev_unregister;
-
return 0;
-
-err_drm_dev_unregister:
- drm_dev_unregister(&udl->drm);
-err_free:
- drm_dev_put(&udl->drm);
- return r;
}
static void udl_usb_disconnect(struct usb_interface *interface)
@@ -117,7 +104,6 @@ static void udl_usb_disconnect(struct usb_interface *interface)
drm_kms_helper_poll_fini(dev);
udl_drop_usb(dev);
drm_dev_unplug(dev);
- drm_dev_put(dev);
}
/*
--
2.25.1
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [PATCH 16/44] drm/udl: don't set drm_device->dev_private
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-03 13:58 ` Daniel Vetter
-1 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:58 UTC (permalink / raw)
To: DRI Development
Cc: Sam Ravnborg, Daniel Vetter, Intel Graphics Development,
Emil Velikov, José Roberto de Souza, Alexios Zavras,
Laurent Pinchart, Thomas Zimmermann, Daniel Vetter, Dave Airlie,
Thomas Gleixner, Sean Paul, Allison Randal, Gerd Hoffmann
We're mostly there already, just a handful of places that didn't use
the to_udl container_of cast. To make sure no new appear, don't set
->dev_private.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Dave Airlie <airlied@redhat.com>
Cc: Sean Paul <sean@poorly.run>
Cc: Emil Velikov <emil.l.velikov@gmail.com>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Alexios Zavras <alexios.zavras@intel.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "José Roberto de Souza" <jose.souza@intel.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Allison Randal <allison@lohutok.net>
---
drivers/gpu/drm/udl/udl_connector.c | 4 ++--
drivers/gpu/drm/udl/udl_drv.c | 1 -
drivers/gpu/drm/udl/udl_modeset.c | 6 +++---
3 files changed, 5 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/udl/udl_connector.c b/drivers/gpu/drm/udl/udl_connector.c
index 0afdfb0d1fe1..cdc1c42e1669 100644
--- a/drivers/gpu/drm/udl/udl_connector.c
+++ b/drivers/gpu/drm/udl/udl_connector.c
@@ -59,7 +59,7 @@ static int udl_get_modes(struct drm_connector *connector)
static enum drm_mode_status udl_mode_valid(struct drm_connector *connector,
struct drm_display_mode *mode)
{
- struct udl_device *udl = connector->dev->dev_private;
+ struct udl_device *udl = to_udl(connector->dev);
if (!udl->sku_pixel_limit)
return 0;
@@ -72,7 +72,7 @@ static enum drm_mode_status udl_mode_valid(struct drm_connector *connector,
static enum drm_connector_status
udl_detect(struct drm_connector *connector, bool force)
{
- struct udl_device *udl = connector->dev->dev_private;
+ struct udl_device *udl = to_udl(connector->dev);
struct udl_drm_connector *udl_connector =
container_of(connector,
struct udl_drm_connector,
diff --git a/drivers/gpu/drm/udl/udl_drv.c b/drivers/gpu/drm/udl/udl_drv.c
index 4ba5149fdd57..126545428895 100644
--- a/drivers/gpu/drm/udl/udl_drv.c
+++ b/drivers/gpu/drm/udl/udl_drv.c
@@ -63,7 +63,6 @@ static struct udl_device *udl_driver_create(struct usb_interface *interface)
return udl;
udl->udev = udev;
- udl->drm.dev_private = udl;
r = udl_init(udl);
if (r)
diff --git a/drivers/gpu/drm/udl/udl_modeset.c b/drivers/gpu/drm/udl/udl_modeset.c
index 8cad01f3d163..99518a826435 100644
--- a/drivers/gpu/drm/udl/udl_modeset.c
+++ b/drivers/gpu/drm/udl/udl_modeset.c
@@ -215,7 +215,7 @@ static char *udl_dummy_render(char *wrptr)
static int udl_crtc_write_mode_to_hw(struct drm_crtc *crtc)
{
struct drm_device *dev = crtc->dev;
- struct udl_device *udl = dev->dev_private;
+ struct udl_device *udl = to_udl(dev);
struct urb *urb;
char *buf;
int retval;
@@ -369,7 +369,7 @@ udl_simple_display_pipe_enable(struct drm_simple_display_pipe *pipe,
struct drm_crtc *crtc = &pipe->crtc;
struct drm_device *dev = crtc->dev;
struct drm_framebuffer *fb = plane_state->fb;
- struct udl_device *udl = dev->dev_private;
+ struct udl_device *udl = to_udl(dev);
struct drm_display_mode *mode = &crtc_state->mode;
char *buf;
char *wrptr;
@@ -464,7 +464,7 @@ static const struct drm_mode_config_funcs udl_mode_funcs = {
int udl_modeset_init(struct drm_device *dev)
{
size_t format_count = ARRAY_SIZE(udl_simple_display_pipe_formats);
- struct udl_device *udl = dev->dev_private;
+ struct udl_device *udl = to_udl(dev);
struct drm_connector *connector;
int ret;
--
2.25.1
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [Intel-gfx] [PATCH 16/44] drm/udl: don't set drm_device->dev_private
@ 2020-04-03 13:58 ` Daniel Vetter
0 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:58 UTC (permalink / raw)
To: DRI Development
Cc: Sam Ravnborg, Daniel Vetter, Intel Graphics Development,
Alexios Zavras, Laurent Pinchart, Thomas Zimmermann,
Daniel Vetter, Dave Airlie, Thomas Gleixner, Allison Randal,
Gerd Hoffmann
We're mostly there already, just a handful of places that didn't use
the to_udl container_of cast. To make sure no new appear, don't set
->dev_private.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Dave Airlie <airlied@redhat.com>
Cc: Sean Paul <sean@poorly.run>
Cc: Emil Velikov <emil.l.velikov@gmail.com>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Alexios Zavras <alexios.zavras@intel.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "José Roberto de Souza" <jose.souza@intel.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Allison Randal <allison@lohutok.net>
---
drivers/gpu/drm/udl/udl_connector.c | 4 ++--
drivers/gpu/drm/udl/udl_drv.c | 1 -
drivers/gpu/drm/udl/udl_modeset.c | 6 +++---
3 files changed, 5 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/udl/udl_connector.c b/drivers/gpu/drm/udl/udl_connector.c
index 0afdfb0d1fe1..cdc1c42e1669 100644
--- a/drivers/gpu/drm/udl/udl_connector.c
+++ b/drivers/gpu/drm/udl/udl_connector.c
@@ -59,7 +59,7 @@ static int udl_get_modes(struct drm_connector *connector)
static enum drm_mode_status udl_mode_valid(struct drm_connector *connector,
struct drm_display_mode *mode)
{
- struct udl_device *udl = connector->dev->dev_private;
+ struct udl_device *udl = to_udl(connector->dev);
if (!udl->sku_pixel_limit)
return 0;
@@ -72,7 +72,7 @@ static enum drm_mode_status udl_mode_valid(struct drm_connector *connector,
static enum drm_connector_status
udl_detect(struct drm_connector *connector, bool force)
{
- struct udl_device *udl = connector->dev->dev_private;
+ struct udl_device *udl = to_udl(connector->dev);
struct udl_drm_connector *udl_connector =
container_of(connector,
struct udl_drm_connector,
diff --git a/drivers/gpu/drm/udl/udl_drv.c b/drivers/gpu/drm/udl/udl_drv.c
index 4ba5149fdd57..126545428895 100644
--- a/drivers/gpu/drm/udl/udl_drv.c
+++ b/drivers/gpu/drm/udl/udl_drv.c
@@ -63,7 +63,6 @@ static struct udl_device *udl_driver_create(struct usb_interface *interface)
return udl;
udl->udev = udev;
- udl->drm.dev_private = udl;
r = udl_init(udl);
if (r)
diff --git a/drivers/gpu/drm/udl/udl_modeset.c b/drivers/gpu/drm/udl/udl_modeset.c
index 8cad01f3d163..99518a826435 100644
--- a/drivers/gpu/drm/udl/udl_modeset.c
+++ b/drivers/gpu/drm/udl/udl_modeset.c
@@ -215,7 +215,7 @@ static char *udl_dummy_render(char *wrptr)
static int udl_crtc_write_mode_to_hw(struct drm_crtc *crtc)
{
struct drm_device *dev = crtc->dev;
- struct udl_device *udl = dev->dev_private;
+ struct udl_device *udl = to_udl(dev);
struct urb *urb;
char *buf;
int retval;
@@ -369,7 +369,7 @@ udl_simple_display_pipe_enable(struct drm_simple_display_pipe *pipe,
struct drm_crtc *crtc = &pipe->crtc;
struct drm_device *dev = crtc->dev;
struct drm_framebuffer *fb = plane_state->fb;
- struct udl_device *udl = dev->dev_private;
+ struct udl_device *udl = to_udl(dev);
struct drm_display_mode *mode = &crtc_state->mode;
char *buf;
char *wrptr;
@@ -464,7 +464,7 @@ static const struct drm_mode_config_funcs udl_mode_funcs = {
int udl_modeset_init(struct drm_device *dev)
{
size_t format_count = ARRAY_SIZE(udl_simple_display_pipe_formats);
- struct udl_device *udl = dev->dev_private;
+ struct udl_device *udl = to_udl(dev);
struct drm_connector *connector;
int ret;
--
2.25.1
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [PATCH 17/44] drm/st7735r: Use devm_drm_dev_alloc
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-03 13:58 ` Daniel Vetter
-1 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:58 UTC (permalink / raw)
To: DRI Development
Cc: Daniel Vetter, Intel Graphics Development, David Lechner, Daniel Vetter
Already using devm_drm_dev_init, so very simple replacment.
Aside: There was an oddity in the old code, we allocated priv but in
the error path we've freed priv->dbidev ...
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: David Lechner <david@lechnology.com>
---
drivers/gpu/drm/tiny/st7735r.c | 13 ++++---------
1 file changed, 4 insertions(+), 9 deletions(-)
diff --git a/drivers/gpu/drm/tiny/st7735r.c b/drivers/gpu/drm/tiny/st7735r.c
index 631801c36f46..ccbf49a53202 100644
--- a/drivers/gpu/drm/tiny/st7735r.c
+++ b/drivers/gpu/drm/tiny/st7735r.c
@@ -195,21 +195,16 @@ static int st7735r_probe(struct spi_device *spi)
if (!cfg)
cfg = (void *)spi_get_device_id(spi)->driver_data;
- priv = kzalloc(sizeof(*priv), GFP_KERNEL);
- if (!priv)
- return -ENOMEM;
+ priv = devm_drm_dev_alloc(dev, &st7735r_driver,
+ struct st7735r_priv, dbidev.drm);
+ if (IS_ERR(priv))
+ return PTR_ERR(priv);
dbidev = &priv->dbidev;
priv->cfg = cfg;
dbi = &dbidev->dbi;
drm = &dbidev->drm;
- ret = devm_drm_dev_init(dev, drm, &st7735r_driver);
- if (ret) {
- kfree(dbidev);
- return ret;
- }
- drmm_add_final_kfree(drm, dbidev);
dbi->reset = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH);
if (IS_ERR(dbi->reset)) {
--
2.25.1
_______________________________________________
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dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [Intel-gfx] [PATCH 17/44] drm/st7735r: Use devm_drm_dev_alloc
@ 2020-04-03 13:58 ` Daniel Vetter
0 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:58 UTC (permalink / raw)
To: DRI Development
Cc: Daniel Vetter, Intel Graphics Development, David Lechner, Daniel Vetter
Already using devm_drm_dev_init, so very simple replacment.
Aside: There was an oddity in the old code, we allocated priv but in
the error path we've freed priv->dbidev ...
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: David Lechner <david@lechnology.com>
---
drivers/gpu/drm/tiny/st7735r.c | 13 ++++---------
1 file changed, 4 insertions(+), 9 deletions(-)
diff --git a/drivers/gpu/drm/tiny/st7735r.c b/drivers/gpu/drm/tiny/st7735r.c
index 631801c36f46..ccbf49a53202 100644
--- a/drivers/gpu/drm/tiny/st7735r.c
+++ b/drivers/gpu/drm/tiny/st7735r.c
@@ -195,21 +195,16 @@ static int st7735r_probe(struct spi_device *spi)
if (!cfg)
cfg = (void *)spi_get_device_id(spi)->driver_data;
- priv = kzalloc(sizeof(*priv), GFP_KERNEL);
- if (!priv)
- return -ENOMEM;
+ priv = devm_drm_dev_alloc(dev, &st7735r_driver,
+ struct st7735r_priv, dbidev.drm);
+ if (IS_ERR(priv))
+ return PTR_ERR(priv);
dbidev = &priv->dbidev;
priv->cfg = cfg;
dbi = &dbidev->dbi;
drm = &dbidev->drm;
- ret = devm_drm_dev_init(dev, drm, &st7735r_driver);
- if (ret) {
- kfree(dbidev);
- return ret;
- }
- drmm_add_final_kfree(drm, dbidev);
dbi->reset = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH);
if (IS_ERR(dbi->reset)) {
--
2.25.1
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [PATCH 18/44] drm/st7586: Use devm_drm_dev_alloc
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-03 13:58 ` Daniel Vetter
-1 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:58 UTC (permalink / raw)
To: DRI Development
Cc: Daniel Vetter, Intel Graphics Development, David Lechner, Daniel Vetter
Already using devm_drm_dev_init, so very simple replacment.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: David Lechner <david@lechnology.com>
---
drivers/gpu/drm/tiny/st7586.c | 13 ++++---------
1 file changed, 4 insertions(+), 9 deletions(-)
diff --git a/drivers/gpu/drm/tiny/st7586.c b/drivers/gpu/drm/tiny/st7586.c
index c3295c717ba6..2a1fae422f7a 100644
--- a/drivers/gpu/drm/tiny/st7586.c
+++ b/drivers/gpu/drm/tiny/st7586.c
@@ -317,18 +317,13 @@ static int st7586_probe(struct spi_device *spi)
size_t bufsize;
int ret;
- dbidev = kzalloc(sizeof(*dbidev), GFP_KERNEL);
- if (!dbidev)
- return -ENOMEM;
+ dbidev = devm_drm_dev_alloc(dev, &st7586_driver,
+ struct mipi_dbi_dev, drm);
+ if (IS_ERR(dbidev))
+ return PTR_ERR(dbidev);
dbi = &dbidev->dbi;
drm = &dbidev->drm;
- ret = devm_drm_dev_init(dev, drm, &st7586_driver);
- if (ret) {
- kfree(dbidev);
- return ret;
- }
- drmm_add_final_kfree(drm, dbidev);
bufsize = (st7586_mode.vdisplay + 2) / 3 * st7586_mode.hdisplay;
--
2.25.1
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [Intel-gfx] [PATCH 18/44] drm/st7586: Use devm_drm_dev_alloc
@ 2020-04-03 13:58 ` Daniel Vetter
0 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:58 UTC (permalink / raw)
To: DRI Development
Cc: Daniel Vetter, Intel Graphics Development, David Lechner, Daniel Vetter
Already using devm_drm_dev_init, so very simple replacment.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: David Lechner <david@lechnology.com>
---
drivers/gpu/drm/tiny/st7586.c | 13 ++++---------
1 file changed, 4 insertions(+), 9 deletions(-)
diff --git a/drivers/gpu/drm/tiny/st7586.c b/drivers/gpu/drm/tiny/st7586.c
index c3295c717ba6..2a1fae422f7a 100644
--- a/drivers/gpu/drm/tiny/st7586.c
+++ b/drivers/gpu/drm/tiny/st7586.c
@@ -317,18 +317,13 @@ static int st7586_probe(struct spi_device *spi)
size_t bufsize;
int ret;
- dbidev = kzalloc(sizeof(*dbidev), GFP_KERNEL);
- if (!dbidev)
- return -ENOMEM;
+ dbidev = devm_drm_dev_alloc(dev, &st7586_driver,
+ struct mipi_dbi_dev, drm);
+ if (IS_ERR(dbidev))
+ return PTR_ERR(dbidev);
dbi = &dbidev->dbi;
drm = &dbidev->drm;
- ret = devm_drm_dev_init(dev, drm, &st7586_driver);
- if (ret) {
- kfree(dbidev);
- return ret;
- }
- drmm_add_final_kfree(drm, dbidev);
bufsize = (st7586_mode.vdisplay + 2) / 3 * st7586_mode.hdisplay;
--
2.25.1
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [PATCH 19/44] drm/repaper: Use devm_drm_dev_alloc
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-03 13:58 ` Daniel Vetter
-1 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:58 UTC (permalink / raw)
To: DRI Development; +Cc: Daniel Vetter, Intel Graphics Development, Daniel Vetter
Already using devm_drm_dev_init, so very simple replacment.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: "Noralf Trønnes" <noralf@tronnes.org>
---
drivers/gpu/drm/tiny/repaper.c | 14 ++++----------
1 file changed, 4 insertions(+), 10 deletions(-)
diff --git a/drivers/gpu/drm/tiny/repaper.c b/drivers/gpu/drm/tiny/repaper.c
index 862c3ee6055d..1c0e7169545b 100644
--- a/drivers/gpu/drm/tiny/repaper.c
+++ b/drivers/gpu/drm/tiny/repaper.c
@@ -1002,19 +1002,13 @@ static int repaper_probe(struct spi_device *spi)
}
}
- epd = kzalloc(sizeof(*epd), GFP_KERNEL);
- if (!epd)
- return -ENOMEM;
+ epd = devm_drm_dev_alloc(dev, &repaper_driver,
+ struct repaper_epd, drm);
+ if (IS_ERR(epd))
+ return PTR_ERR(epd);
drm = &epd->drm;
- ret = devm_drm_dev_init(dev, drm, &repaper_driver);
- if (ret) {
- kfree(epd);
- return ret;
- }
- drmm_add_final_kfree(drm, epd);
-
ret = drmm_mode_config_init(drm);
if (ret)
return ret;
--
2.25.1
_______________________________________________
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dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [Intel-gfx] [PATCH 19/44] drm/repaper: Use devm_drm_dev_alloc
@ 2020-04-03 13:58 ` Daniel Vetter
0 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:58 UTC (permalink / raw)
To: DRI Development
Cc: Daniel Vetter, Intel Graphics Development, Noralf Trønnes,
Daniel Vetter
Already using devm_drm_dev_init, so very simple replacment.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: "Noralf Trønnes" <noralf@tronnes.org>
---
drivers/gpu/drm/tiny/repaper.c | 14 ++++----------
1 file changed, 4 insertions(+), 10 deletions(-)
diff --git a/drivers/gpu/drm/tiny/repaper.c b/drivers/gpu/drm/tiny/repaper.c
index 862c3ee6055d..1c0e7169545b 100644
--- a/drivers/gpu/drm/tiny/repaper.c
+++ b/drivers/gpu/drm/tiny/repaper.c
@@ -1002,19 +1002,13 @@ static int repaper_probe(struct spi_device *spi)
}
}
- epd = kzalloc(sizeof(*epd), GFP_KERNEL);
- if (!epd)
- return -ENOMEM;
+ epd = devm_drm_dev_alloc(dev, &repaper_driver,
+ struct repaper_epd, drm);
+ if (IS_ERR(epd))
+ return PTR_ERR(epd);
drm = &epd->drm;
- ret = devm_drm_dev_init(dev, drm, &repaper_driver);
- if (ret) {
- kfree(epd);
- return ret;
- }
- drmm_add_final_kfree(drm, epd);
-
ret = drmm_mode_config_init(drm);
if (ret)
return ret;
--
2.25.1
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [PATCH 20/44] drm/mi0283qt: Use devm_drm_dev_alloc
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-03 13:58 ` Daniel Vetter
-1 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:58 UTC (permalink / raw)
To: DRI Development; +Cc: Daniel Vetter, Intel Graphics Development, Daniel Vetter
Already using devm_drm_dev_init, so very simple replacment.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: "Noralf Trønnes" <noralf@tronnes.org>
---
drivers/gpu/drm/tiny/mi0283qt.c | 13 ++++---------
1 file changed, 4 insertions(+), 9 deletions(-)
diff --git a/drivers/gpu/drm/tiny/mi0283qt.c b/drivers/gpu/drm/tiny/mi0283qt.c
index decaf57053ff..08ac549ab0f7 100644
--- a/drivers/gpu/drm/tiny/mi0283qt.c
+++ b/drivers/gpu/drm/tiny/mi0283qt.c
@@ -187,18 +187,13 @@ static int mi0283qt_probe(struct spi_device *spi)
u32 rotation = 0;
int ret;
- dbidev = kzalloc(sizeof(*dbidev), GFP_KERNEL);
- if (!dbidev)
- return -ENOMEM;
+ dbidev = devm_drm_dev_alloc(dev, &mi0283qt_driver,
+ struct mipi_dbi_dev, drm);
+ if (IS_ERR(dbidev))
+ return PTR_ERR(dbidev);
dbi = &dbidev->dbi;
drm = &dbidev->drm;
- ret = devm_drm_dev_init(dev, drm, &mi0283qt_driver);
- if (ret) {
- kfree(dbidev);
- return ret;
- }
- drmm_add_final_kfree(drm, dbidev);
dbi->reset = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_HIGH);
if (IS_ERR(dbi->reset)) {
--
2.25.1
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [Intel-gfx] [PATCH 20/44] drm/mi0283qt: Use devm_drm_dev_alloc
@ 2020-04-03 13:58 ` Daniel Vetter
0 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:58 UTC (permalink / raw)
To: DRI Development
Cc: Daniel Vetter, Intel Graphics Development, Noralf Trønnes,
Daniel Vetter
Already using devm_drm_dev_init, so very simple replacment.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: "Noralf Trønnes" <noralf@tronnes.org>
---
drivers/gpu/drm/tiny/mi0283qt.c | 13 ++++---------
1 file changed, 4 insertions(+), 9 deletions(-)
diff --git a/drivers/gpu/drm/tiny/mi0283qt.c b/drivers/gpu/drm/tiny/mi0283qt.c
index decaf57053ff..08ac549ab0f7 100644
--- a/drivers/gpu/drm/tiny/mi0283qt.c
+++ b/drivers/gpu/drm/tiny/mi0283qt.c
@@ -187,18 +187,13 @@ static int mi0283qt_probe(struct spi_device *spi)
u32 rotation = 0;
int ret;
- dbidev = kzalloc(sizeof(*dbidev), GFP_KERNEL);
- if (!dbidev)
- return -ENOMEM;
+ dbidev = devm_drm_dev_alloc(dev, &mi0283qt_driver,
+ struct mipi_dbi_dev, drm);
+ if (IS_ERR(dbidev))
+ return PTR_ERR(dbidev);
dbi = &dbidev->dbi;
drm = &dbidev->drm;
- ret = devm_drm_dev_init(dev, drm, &mi0283qt_driver);
- if (ret) {
- kfree(dbidev);
- return ret;
- }
- drmm_add_final_kfree(drm, dbidev);
dbi->reset = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_HIGH);
if (IS_ERR(dbi->reset)) {
--
2.25.1
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [PATCH 21/44] drm/ili9486: Use devm_drm_dev_alloc
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-03 13:58 ` Daniel Vetter
-1 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:58 UTC (permalink / raw)
To: DRI Development
Cc: Daniel Vetter, Intel Graphics Development, Kamlesh Gurudasani,
Daniel Vetter
Already using devm_drm_dev_init, so very simple replacment.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Kamlesh Gurudasani <kamlesh.gurudasani@gmail.com>
---
drivers/gpu/drm/tiny/ili9486.c | 13 ++++---------
1 file changed, 4 insertions(+), 9 deletions(-)
diff --git a/drivers/gpu/drm/tiny/ili9486.c b/drivers/gpu/drm/tiny/ili9486.c
index c4079bf9e2c8..2702ea557d29 100644
--- a/drivers/gpu/drm/tiny/ili9486.c
+++ b/drivers/gpu/drm/tiny/ili9486.c
@@ -197,18 +197,13 @@ static int ili9486_probe(struct spi_device *spi)
u32 rotation = 0;
int ret;
- dbidev = kzalloc(sizeof(*dbidev), GFP_KERNEL);
- if (!dbidev)
- return -ENOMEM;
+ dbidev = devm_drm_dev_alloc(dev, &ili9486_driver,
+ struct mipi_dbi_dev, drm);
+ if (IS_ERR(dbidev))
+ return PTR_ERR(dbidev);
dbi = &dbidev->dbi;
drm = &dbidev->drm;
- ret = devm_drm_dev_init(dev, drm, &ili9486_driver);
- if (ret) {
- kfree(dbidev);
- return ret;
- }
- drmm_add_final_kfree(drm, dbidev);
dbi->reset = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH);
if (IS_ERR(dbi->reset)) {
--
2.25.1
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [Intel-gfx] [PATCH 21/44] drm/ili9486: Use devm_drm_dev_alloc
@ 2020-04-03 13:58 ` Daniel Vetter
0 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:58 UTC (permalink / raw)
To: DRI Development
Cc: Daniel Vetter, Intel Graphics Development, Kamlesh Gurudasani,
Daniel Vetter
Already using devm_drm_dev_init, so very simple replacment.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Kamlesh Gurudasani <kamlesh.gurudasani@gmail.com>
---
drivers/gpu/drm/tiny/ili9486.c | 13 ++++---------
1 file changed, 4 insertions(+), 9 deletions(-)
diff --git a/drivers/gpu/drm/tiny/ili9486.c b/drivers/gpu/drm/tiny/ili9486.c
index c4079bf9e2c8..2702ea557d29 100644
--- a/drivers/gpu/drm/tiny/ili9486.c
+++ b/drivers/gpu/drm/tiny/ili9486.c
@@ -197,18 +197,13 @@ static int ili9486_probe(struct spi_device *spi)
u32 rotation = 0;
int ret;
- dbidev = kzalloc(sizeof(*dbidev), GFP_KERNEL);
- if (!dbidev)
- return -ENOMEM;
+ dbidev = devm_drm_dev_alloc(dev, &ili9486_driver,
+ struct mipi_dbi_dev, drm);
+ if (IS_ERR(dbidev))
+ return PTR_ERR(dbidev);
dbi = &dbidev->dbi;
drm = &dbidev->drm;
- ret = devm_drm_dev_init(dev, drm, &ili9486_driver);
- if (ret) {
- kfree(dbidev);
- return ret;
- }
- drmm_add_final_kfree(drm, dbidev);
dbi->reset = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH);
if (IS_ERR(dbi->reset)) {
--
2.25.1
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [PATCH 22/44] drm/ili9341: Use devm_drm_dev_alloc
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-03 13:58 ` Daniel Vetter
-1 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:58 UTC (permalink / raw)
To: DRI Development
Cc: David Lechner, Daniel Vetter, Intel Graphics Development,
Daniel Vetter, Sam Ravnborg
Already using devm_drm_dev_init, so very simple replacment.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: "Noralf Trønnes" <noralf@tronnes.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Eric Anholt <eric@anholt.net>
Cc: David Lechner <david@lechnology.com>
---
drivers/gpu/drm/tiny/ili9341.c | 13 ++++---------
1 file changed, 4 insertions(+), 9 deletions(-)
diff --git a/drivers/gpu/drm/tiny/ili9341.c b/drivers/gpu/drm/tiny/ili9341.c
index e152de369019..bb819f45a5d3 100644
--- a/drivers/gpu/drm/tiny/ili9341.c
+++ b/drivers/gpu/drm/tiny/ili9341.c
@@ -183,18 +183,13 @@ static int ili9341_probe(struct spi_device *spi)
u32 rotation = 0;
int ret;
- dbidev = kzalloc(sizeof(*dbidev), GFP_KERNEL);
- if (!dbidev)
- return -ENOMEM;
+ dbidev = devm_drm_dev_alloc(dev, &ili9341_driver,
+ struct mipi_dbi_dev, drm);
+ if (IS_ERR(dbidev))
+ return PTR_ERR(dbidev);
dbi = &dbidev->dbi;
drm = &dbidev->drm;
- ret = devm_drm_dev_init(dev, drm, &ili9341_driver);
- if (ret) {
- kfree(dbidev);
- return ret;
- }
- drmm_add_final_kfree(drm, dbidev);
dbi->reset = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_HIGH);
if (IS_ERR(dbi->reset)) {
--
2.25.1
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [Intel-gfx] [PATCH 22/44] drm/ili9341: Use devm_drm_dev_alloc
@ 2020-04-03 13:58 ` Daniel Vetter
0 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:58 UTC (permalink / raw)
To: DRI Development
Cc: David Lechner, Daniel Vetter, Intel Graphics Development,
Eric Anholt, Noralf Trønnes, Daniel Vetter, Sam Ravnborg
Already using devm_drm_dev_init, so very simple replacment.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: "Noralf Trønnes" <noralf@tronnes.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Eric Anholt <eric@anholt.net>
Cc: David Lechner <david@lechnology.com>
---
drivers/gpu/drm/tiny/ili9341.c | 13 ++++---------
1 file changed, 4 insertions(+), 9 deletions(-)
diff --git a/drivers/gpu/drm/tiny/ili9341.c b/drivers/gpu/drm/tiny/ili9341.c
index e152de369019..bb819f45a5d3 100644
--- a/drivers/gpu/drm/tiny/ili9341.c
+++ b/drivers/gpu/drm/tiny/ili9341.c
@@ -183,18 +183,13 @@ static int ili9341_probe(struct spi_device *spi)
u32 rotation = 0;
int ret;
- dbidev = kzalloc(sizeof(*dbidev), GFP_KERNEL);
- if (!dbidev)
- return -ENOMEM;
+ dbidev = devm_drm_dev_alloc(dev, &ili9341_driver,
+ struct mipi_dbi_dev, drm);
+ if (IS_ERR(dbidev))
+ return PTR_ERR(dbidev);
dbi = &dbidev->dbi;
drm = &dbidev->drm;
- ret = devm_drm_dev_init(dev, drm, &ili9341_driver);
- if (ret) {
- kfree(dbidev);
- return ret;
- }
- drmm_add_final_kfree(drm, dbidev);
dbi->reset = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_HIGH);
if (IS_ERR(dbi->reset)) {
--
2.25.1
_______________________________________________
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Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [PATCH 23/44] drm/ili9225: Use devm_drm_dev_alloc
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-03 13:58 ` Daniel Vetter
-1 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:58 UTC (permalink / raw)
To: DRI Development
Cc: Daniel Vetter, Intel Graphics Development, David Lechner, Daniel Vetter
Already using devm_drm_dev_init, so very simple replacment.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: David Lechner <david@lechnology.com>
---
drivers/gpu/drm/tiny/ili9225.c | 13 ++++---------
1 file changed, 4 insertions(+), 9 deletions(-)
diff --git a/drivers/gpu/drm/tiny/ili9225.c b/drivers/gpu/drm/tiny/ili9225.c
index 118477af4491..d1a5ab6747d5 100644
--- a/drivers/gpu/drm/tiny/ili9225.c
+++ b/drivers/gpu/drm/tiny/ili9225.c
@@ -376,18 +376,13 @@ static int ili9225_probe(struct spi_device *spi)
u32 rotation = 0;
int ret;
- dbidev = kzalloc(sizeof(*dbidev), GFP_KERNEL);
- if (!dbidev)
- return -ENOMEM;
+ dbidev = devm_drm_dev_alloc(dev, &ili9225_driver,
+ struct mipi_dbi_dev, drm);
+ if (IS_ERR(dbidev))
+ return PTR_ERR(dbidev);
dbi = &dbidev->dbi;
drm = &dbidev->drm;
- ret = devm_drm_dev_init(dev, drm, &ili9225_driver);
- if (ret) {
- kfree(dbidev);
- return ret;
- }
- drmm_add_final_kfree(drm, dbidev);
dbi->reset = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH);
if (IS_ERR(dbi->reset)) {
--
2.25.1
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [Intel-gfx] [PATCH 23/44] drm/ili9225: Use devm_drm_dev_alloc
@ 2020-04-03 13:58 ` Daniel Vetter
0 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:58 UTC (permalink / raw)
To: DRI Development
Cc: Daniel Vetter, Intel Graphics Development, David Lechner, Daniel Vetter
Already using devm_drm_dev_init, so very simple replacment.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: David Lechner <david@lechnology.com>
---
drivers/gpu/drm/tiny/ili9225.c | 13 ++++---------
1 file changed, 4 insertions(+), 9 deletions(-)
diff --git a/drivers/gpu/drm/tiny/ili9225.c b/drivers/gpu/drm/tiny/ili9225.c
index 118477af4491..d1a5ab6747d5 100644
--- a/drivers/gpu/drm/tiny/ili9225.c
+++ b/drivers/gpu/drm/tiny/ili9225.c
@@ -376,18 +376,13 @@ static int ili9225_probe(struct spi_device *spi)
u32 rotation = 0;
int ret;
- dbidev = kzalloc(sizeof(*dbidev), GFP_KERNEL);
- if (!dbidev)
- return -ENOMEM;
+ dbidev = devm_drm_dev_alloc(dev, &ili9225_driver,
+ struct mipi_dbi_dev, drm);
+ if (IS_ERR(dbidev))
+ return PTR_ERR(dbidev);
dbi = &dbidev->dbi;
drm = &dbidev->drm;
- ret = devm_drm_dev_init(dev, drm, &ili9225_driver);
- if (ret) {
- kfree(dbidev);
- return ret;
- }
- drmm_add_final_kfree(drm, dbidev);
dbi->reset = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH);
if (IS_ERR(dbi->reset)) {
--
2.25.1
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [PATCH 24/44] drm/hx8357d: Use devm_drm_dev_alloc
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-03 13:58 ` Daniel Vetter
-1 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:58 UTC (permalink / raw)
To: DRI Development; +Cc: Daniel Vetter, Intel Graphics Development, Daniel Vetter
Already using devm_drm_dev_init, so very simple replacment.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Eric Anholt <eric@anholt.net>
---
drivers/gpu/drm/tiny/hx8357d.c | 13 ++++---------
1 file changed, 4 insertions(+), 9 deletions(-)
diff --git a/drivers/gpu/drm/tiny/hx8357d.c b/drivers/gpu/drm/tiny/hx8357d.c
index af7f3d10aac3..b4bc358a3269 100644
--- a/drivers/gpu/drm/tiny/hx8357d.c
+++ b/drivers/gpu/drm/tiny/hx8357d.c
@@ -226,17 +226,12 @@ static int hx8357d_probe(struct spi_device *spi)
u32 rotation = 0;
int ret;
- dbidev = kzalloc(sizeof(*dbidev), GFP_KERNEL);
- if (!dbidev)
- return -ENOMEM;
+ dbidev = devm_drm_dev_alloc(dev, &hx8357d_driver,
+ struct mipi_dbi_dev, drm);
+ if (IS_ERR(dbidev))
+ return PTR_ERR(dbidev);
drm = &dbidev->drm;
- ret = devm_drm_dev_init(dev, drm, &hx8357d_driver);
- if (ret) {
- kfree(dbidev);
- return ret;
- }
- drmm_add_final_kfree(drm, dbidev);
dc = devm_gpiod_get(dev, "dc", GPIOD_OUT_LOW);
if (IS_ERR(dc)) {
--
2.25.1
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^ permalink raw reply related [flat|nested] 262+ messages in thread
* [Intel-gfx] [PATCH 24/44] drm/hx8357d: Use devm_drm_dev_alloc
@ 2020-04-03 13:58 ` Daniel Vetter
0 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:58 UTC (permalink / raw)
To: DRI Development
Cc: Eric Anholt, Daniel Vetter, Intel Graphics Development, Daniel Vetter
Already using devm_drm_dev_init, so very simple replacment.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Eric Anholt <eric@anholt.net>
---
drivers/gpu/drm/tiny/hx8357d.c | 13 ++++---------
1 file changed, 4 insertions(+), 9 deletions(-)
diff --git a/drivers/gpu/drm/tiny/hx8357d.c b/drivers/gpu/drm/tiny/hx8357d.c
index af7f3d10aac3..b4bc358a3269 100644
--- a/drivers/gpu/drm/tiny/hx8357d.c
+++ b/drivers/gpu/drm/tiny/hx8357d.c
@@ -226,17 +226,12 @@ static int hx8357d_probe(struct spi_device *spi)
u32 rotation = 0;
int ret;
- dbidev = kzalloc(sizeof(*dbidev), GFP_KERNEL);
- if (!dbidev)
- return -ENOMEM;
+ dbidev = devm_drm_dev_alloc(dev, &hx8357d_driver,
+ struct mipi_dbi_dev, drm);
+ if (IS_ERR(dbidev))
+ return PTR_ERR(dbidev);
drm = &dbidev->drm;
- ret = devm_drm_dev_init(dev, drm, &hx8357d_driver);
- if (ret) {
- kfree(dbidev);
- return ret;
- }
- drmm_add_final_kfree(drm, dbidev);
dc = devm_gpiod_get(dev, "dc", GPIOD_OUT_LOW);
if (IS_ERR(dc)) {
--
2.25.1
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^ permalink raw reply related [flat|nested] 262+ messages in thread
* [PATCH 25/44] drm/gm12u320: Use devm_drm_dev_alloc
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-03 13:58 ` Daniel Vetter
-1 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:58 UTC (permalink / raw)
To: DRI Development
Cc: Daniel Vetter, Intel Graphics Development, Hans de Goede, Daniel Vetter
Already using devm_drm_dev_init, so very simple replacment.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Hans de Goede <hdegoede@redhat.com>
---
drivers/gpu/drm/tiny/gm12u320.c | 13 ++++---------
1 file changed, 4 insertions(+), 9 deletions(-)
diff --git a/drivers/gpu/drm/tiny/gm12u320.c b/drivers/gpu/drm/tiny/gm12u320.c
index 6f0ea2827d62..907739a67bf6 100644
--- a/drivers/gpu/drm/tiny/gm12u320.c
+++ b/drivers/gpu/drm/tiny/gm12u320.c
@@ -631,22 +631,17 @@ static int gm12u320_usb_probe(struct usb_interface *interface,
if (interface->cur_altsetting->desc.bInterfaceNumber != 0)
return -ENODEV;
- gm12u320 = kzalloc(sizeof(*gm12u320), GFP_KERNEL);
- if (gm12u320 == NULL)
- return -ENOMEM;
+ gm12u320 = devm_drm_dev_alloc(&interface->dev, &gm12u320_drm_driver,
+ struct gm12u320_device, dev);
+ if (IS_ERR(gm12u320))
+ return PTR_ERR(gm12u320);
gm12u320->udev = interface_to_usbdev(interface);
INIT_DELAYED_WORK(&gm12u320->fb_update.work, gm12u320_fb_update_work);
mutex_init(&gm12u320->fb_update.lock);
dev = &gm12u320->dev;
- ret = devm_drm_dev_init(&interface->dev, dev, &gm12u320_drm_driver);
- if (ret) {
- kfree(gm12u320);
- return ret;
- }
dev->dev_private = gm12u320;
- drmm_add_final_kfree(dev, gm12u320);
ret = drmm_mode_config_init(dev);
if (ret)
--
2.25.1
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^ permalink raw reply related [flat|nested] 262+ messages in thread
* [Intel-gfx] [PATCH 25/44] drm/gm12u320: Use devm_drm_dev_alloc
@ 2020-04-03 13:58 ` Daniel Vetter
0 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:58 UTC (permalink / raw)
To: DRI Development; +Cc: Daniel Vetter, Intel Graphics Development, Daniel Vetter
Already using devm_drm_dev_init, so very simple replacment.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Hans de Goede <hdegoede@redhat.com>
---
drivers/gpu/drm/tiny/gm12u320.c | 13 ++++---------
1 file changed, 4 insertions(+), 9 deletions(-)
diff --git a/drivers/gpu/drm/tiny/gm12u320.c b/drivers/gpu/drm/tiny/gm12u320.c
index 6f0ea2827d62..907739a67bf6 100644
--- a/drivers/gpu/drm/tiny/gm12u320.c
+++ b/drivers/gpu/drm/tiny/gm12u320.c
@@ -631,22 +631,17 @@ static int gm12u320_usb_probe(struct usb_interface *interface,
if (interface->cur_altsetting->desc.bInterfaceNumber != 0)
return -ENODEV;
- gm12u320 = kzalloc(sizeof(*gm12u320), GFP_KERNEL);
- if (gm12u320 == NULL)
- return -ENOMEM;
+ gm12u320 = devm_drm_dev_alloc(&interface->dev, &gm12u320_drm_driver,
+ struct gm12u320_device, dev);
+ if (IS_ERR(gm12u320))
+ return PTR_ERR(gm12u320);
gm12u320->udev = interface_to_usbdev(interface);
INIT_DELAYED_WORK(&gm12u320->fb_update.work, gm12u320_fb_update_work);
mutex_init(&gm12u320->fb_update.lock);
dev = &gm12u320->dev;
- ret = devm_drm_dev_init(&interface->dev, dev, &gm12u320_drm_driver);
- if (ret) {
- kfree(gm12u320);
- return ret;
- }
dev->dev_private = gm12u320;
- drmm_add_final_kfree(dev, gm12u320);
ret = drmm_mode_config_init(dev);
if (ret)
--
2.25.1
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https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [PATCH 26/44] drm/gm12u320: Don't use drm_device->dev_private
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-03 13:58 ` Daniel Vetter
-1 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:58 UTC (permalink / raw)
To: DRI Development
Cc: Daniel Vetter, Intel Graphics Development, Hans de Goede, Daniel Vetter
Upcasting using a container_of macro is more typesafe, faster and
easier for the compiler to optimize.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Hans de Goede <hdegoede@redhat.com>
---
drivers/gpu/drm/tiny/gm12u320.c | 11 ++++++-----
1 file changed, 6 insertions(+), 5 deletions(-)
diff --git a/drivers/gpu/drm/tiny/gm12u320.c b/drivers/gpu/drm/tiny/gm12u320.c
index 907739a67bf6..cc397671f689 100644
--- a/drivers/gpu/drm/tiny/gm12u320.c
+++ b/drivers/gpu/drm/tiny/gm12u320.c
@@ -98,6 +98,8 @@ struct gm12u320_device {
} fb_update;
};
+#define to_gm12u320(__dev) container_of(__dev, struct gm12u320_device, dev)
+
static const char cmd_data[CMD_SIZE] = {
0x55, 0x53, 0x42, 0x43, 0x00, 0x00, 0x00, 0x00,
0x68, 0xfc, 0x00, 0x00, 0x00, 0x00, 0x10, 0xff,
@@ -408,7 +410,7 @@ static void gm12u320_fb_update_work(struct work_struct *work)
static void gm12u320_fb_mark_dirty(struct drm_framebuffer *fb,
struct drm_rect *dirty)
{
- struct gm12u320_device *gm12u320 = fb->dev->dev_private;
+ struct gm12u320_device *gm12u320 = to_gm12u320(fb->dev);
struct drm_framebuffer *old_fb = NULL;
bool wakeup = false;
@@ -558,7 +560,7 @@ static void gm12u320_pipe_enable(struct drm_simple_display_pipe *pipe,
struct drm_plane_state *plane_state)
{
struct drm_rect rect = { 0, 0, GM12U320_USER_WIDTH, GM12U320_HEIGHT };
- struct gm12u320_device *gm12u320 = pipe->crtc.dev->dev_private;
+ struct gm12u320_device *gm12u320 = to_gm12u320(pipe->crtc.dev);
gm12u320->fb_update.draw_status_timeout = FIRST_FRAME_TIMEOUT;
gm12u320_fb_mark_dirty(plane_state->fb, &rect);
@@ -566,7 +568,7 @@ static void gm12u320_pipe_enable(struct drm_simple_display_pipe *pipe,
static void gm12u320_pipe_disable(struct drm_simple_display_pipe *pipe)
{
- struct gm12u320_device *gm12u320 = pipe->crtc.dev->dev_private;
+ struct gm12u320_device *gm12u320 = to_gm12u320(pipe->crtc.dev);
gm12u320_stop_fb_update(gm12u320);
}
@@ -641,7 +643,6 @@ static int gm12u320_usb_probe(struct usb_interface *interface,
mutex_init(&gm12u320->fb_update.lock);
dev = &gm12u320->dev;
- dev->dev_private = gm12u320;
ret = drmm_mode_config_init(dev);
if (ret)
@@ -706,7 +707,7 @@ static __maybe_unused int gm12u320_suspend(struct usb_interface *interface,
static __maybe_unused int gm12u320_resume(struct usb_interface *interface)
{
struct drm_device *dev = usb_get_intfdata(interface);
- struct gm12u320_device *gm12u320 = dev->dev_private;
+ struct gm12u320_device *gm12u320 = to_gm12u320(dev);
gm12u320_set_ecomode(gm12u320);
--
2.25.1
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https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [Intel-gfx] [PATCH 26/44] drm/gm12u320: Don't use drm_device->dev_private
@ 2020-04-03 13:58 ` Daniel Vetter
0 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:58 UTC (permalink / raw)
To: DRI Development; +Cc: Daniel Vetter, Intel Graphics Development, Daniel Vetter
Upcasting using a container_of macro is more typesafe, faster and
easier for the compiler to optimize.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Hans de Goede <hdegoede@redhat.com>
---
drivers/gpu/drm/tiny/gm12u320.c | 11 ++++++-----
1 file changed, 6 insertions(+), 5 deletions(-)
diff --git a/drivers/gpu/drm/tiny/gm12u320.c b/drivers/gpu/drm/tiny/gm12u320.c
index 907739a67bf6..cc397671f689 100644
--- a/drivers/gpu/drm/tiny/gm12u320.c
+++ b/drivers/gpu/drm/tiny/gm12u320.c
@@ -98,6 +98,8 @@ struct gm12u320_device {
} fb_update;
};
+#define to_gm12u320(__dev) container_of(__dev, struct gm12u320_device, dev)
+
static const char cmd_data[CMD_SIZE] = {
0x55, 0x53, 0x42, 0x43, 0x00, 0x00, 0x00, 0x00,
0x68, 0xfc, 0x00, 0x00, 0x00, 0x00, 0x10, 0xff,
@@ -408,7 +410,7 @@ static void gm12u320_fb_update_work(struct work_struct *work)
static void gm12u320_fb_mark_dirty(struct drm_framebuffer *fb,
struct drm_rect *dirty)
{
- struct gm12u320_device *gm12u320 = fb->dev->dev_private;
+ struct gm12u320_device *gm12u320 = to_gm12u320(fb->dev);
struct drm_framebuffer *old_fb = NULL;
bool wakeup = false;
@@ -558,7 +560,7 @@ static void gm12u320_pipe_enable(struct drm_simple_display_pipe *pipe,
struct drm_plane_state *plane_state)
{
struct drm_rect rect = { 0, 0, GM12U320_USER_WIDTH, GM12U320_HEIGHT };
- struct gm12u320_device *gm12u320 = pipe->crtc.dev->dev_private;
+ struct gm12u320_device *gm12u320 = to_gm12u320(pipe->crtc.dev);
gm12u320->fb_update.draw_status_timeout = FIRST_FRAME_TIMEOUT;
gm12u320_fb_mark_dirty(plane_state->fb, &rect);
@@ -566,7 +568,7 @@ static void gm12u320_pipe_enable(struct drm_simple_display_pipe *pipe,
static void gm12u320_pipe_disable(struct drm_simple_display_pipe *pipe)
{
- struct gm12u320_device *gm12u320 = pipe->crtc.dev->dev_private;
+ struct gm12u320_device *gm12u320 = to_gm12u320(pipe->crtc.dev);
gm12u320_stop_fb_update(gm12u320);
}
@@ -641,7 +643,6 @@ static int gm12u320_usb_probe(struct usb_interface *interface,
mutex_init(&gm12u320->fb_update.lock);
dev = &gm12u320->dev;
- dev->dev_private = gm12u320;
ret = drmm_mode_config_init(dev);
if (ret)
@@ -706,7 +707,7 @@ static __maybe_unused int gm12u320_suspend(struct usb_interface *interface,
static __maybe_unused int gm12u320_resume(struct usb_interface *interface)
{
struct drm_device *dev = usb_get_intfdata(interface);
- struct gm12u320_device *gm12u320 = dev->dev_private;
+ struct gm12u320_device *gm12u320 = to_gm12u320(dev);
gm12u320_set_ecomode(gm12u320);
--
2.25.1
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^ permalink raw reply related [flat|nested] 262+ messages in thread
* [PATCH 27/44] drm/tidss: Use devm_drm_dev_alloc
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-03 13:58 ` Daniel Vetter
-1 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:58 UTC (permalink / raw)
To: DRI Development
Cc: Daniel Vetter, Intel Graphics Development, Tomi Valkeinen,
Jyri Sarha, Daniel Vetter
Already using devm_drm_dev_init, so very simple replacment.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Jyri Sarha <jsarha@ti.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
drivers/gpu/drm/tidss/tidss_drv.c | 15 ++++-----------
1 file changed, 4 insertions(+), 11 deletions(-)
diff --git a/drivers/gpu/drm/tidss/tidss_drv.c b/drivers/gpu/drm/tidss/tidss_drv.c
index ad449d104306..7d4465d58be8 100644
--- a/drivers/gpu/drm/tidss/tidss_drv.c
+++ b/drivers/gpu/drm/tidss/tidss_drv.c
@@ -135,20 +135,13 @@ static int tidss_probe(struct platform_device *pdev)
dev_dbg(dev, "%s\n", __func__);
- /* Can't use devm_* since drm_device's lifetime may exceed dev's */
- tidss = kzalloc(sizeof(*tidss), GFP_KERNEL);
- if (!tidss)
- return -ENOMEM;
+ tidss = devm_drm_dev_alloc(&pdev->dev, &tidss_driver,
+ struct tidss_device, ddev);
+ if (IS_ERR(tidss))
+ return PTR_ERR(tidss);
ddev = &tidss->ddev;
- ret = devm_drm_dev_init(&pdev->dev, ddev, &tidss_driver);
- if (ret) {
- kfree(ddev);
- return ret;
- }
- drmm_add_final_kfree(ddev, tidss);
-
tidss->dev = dev;
tidss->feat = of_device_get_match_data(dev);
--
2.25.1
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^ permalink raw reply related [flat|nested] 262+ messages in thread
* [Intel-gfx] [PATCH 27/44] drm/tidss: Use devm_drm_dev_alloc
@ 2020-04-03 13:58 ` Daniel Vetter
0 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:58 UTC (permalink / raw)
To: DRI Development
Cc: Daniel Vetter, Intel Graphics Development, Tomi Valkeinen,
Jyri Sarha, Daniel Vetter
Already using devm_drm_dev_init, so very simple replacment.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Jyri Sarha <jsarha@ti.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
drivers/gpu/drm/tidss/tidss_drv.c | 15 ++++-----------
1 file changed, 4 insertions(+), 11 deletions(-)
diff --git a/drivers/gpu/drm/tidss/tidss_drv.c b/drivers/gpu/drm/tidss/tidss_drv.c
index ad449d104306..7d4465d58be8 100644
--- a/drivers/gpu/drm/tidss/tidss_drv.c
+++ b/drivers/gpu/drm/tidss/tidss_drv.c
@@ -135,20 +135,13 @@ static int tidss_probe(struct platform_device *pdev)
dev_dbg(dev, "%s\n", __func__);
- /* Can't use devm_* since drm_device's lifetime may exceed dev's */
- tidss = kzalloc(sizeof(*tidss), GFP_KERNEL);
- if (!tidss)
- return -ENOMEM;
+ tidss = devm_drm_dev_alloc(&pdev->dev, &tidss_driver,
+ struct tidss_device, ddev);
+ if (IS_ERR(tidss))
+ return PTR_ERR(tidss);
ddev = &tidss->ddev;
- ret = devm_drm_dev_init(&pdev->dev, ddev, &tidss_driver);
- if (ret) {
- kfree(ddev);
- return ret;
- }
- drmm_add_final_kfree(ddev, tidss);
-
tidss->dev = dev;
tidss->feat = of_device_get_match_data(dev);
--
2.25.1
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https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [PATCH 28/44] drm/tidss: Don't use drm_device->dev_private
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-03 13:58 ` Daniel Vetter
-1 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:58 UTC (permalink / raw)
To: DRI Development
Cc: Daniel Vetter, Intel Graphics Development, Tomi Valkeinen,
Jyri Sarha, Daniel Vetter
Upcasting using a container_of macro is more typesafe, faster and
easier for the compiler to optimize.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Jyri Sarha <jsarha@ti.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
drivers/gpu/drm/tidss/tidss_crtc.c | 16 ++++++++--------
drivers/gpu/drm/tidss/tidss_drv.c | 2 --
drivers/gpu/drm/tidss/tidss_drv.h | 2 ++
drivers/gpu/drm/tidss/tidss_irq.c | 12 ++++++------
drivers/gpu/drm/tidss/tidss_kms.c | 2 +-
drivers/gpu/drm/tidss/tidss_plane.c | 6 +++---
6 files changed, 20 insertions(+), 20 deletions(-)
diff --git a/drivers/gpu/drm/tidss/tidss_crtc.c b/drivers/gpu/drm/tidss/tidss_crtc.c
index d4ce9bab8c7e..2396262c09e4 100644
--- a/drivers/gpu/drm/tidss/tidss_crtc.c
+++ b/drivers/gpu/drm/tidss/tidss_crtc.c
@@ -24,7 +24,7 @@
static void tidss_crtc_finish_page_flip(struct tidss_crtc *tcrtc)
{
struct drm_device *ddev = tcrtc->crtc.dev;
- struct tidss_device *tidss = ddev->dev_private;
+ struct tidss_device *tidss = to_tidss(ddev);
struct drm_pending_vblank_event *event;
unsigned long flags;
bool busy;
@@ -88,7 +88,7 @@ static int tidss_crtc_atomic_check(struct drm_crtc *crtc,
struct drm_crtc_state *state)
{
struct drm_device *ddev = crtc->dev;
- struct tidss_device *tidss = ddev->dev_private;
+ struct tidss_device *tidss = to_tidss(ddev);
struct dispc_device *dispc = tidss->dispc;
struct tidss_crtc *tcrtc = to_tidss_crtc(crtc);
u32 hw_videoport = tcrtc->hw_videoport;
@@ -165,7 +165,7 @@ static void tidss_crtc_atomic_flush(struct drm_crtc *crtc,
{
struct tidss_crtc *tcrtc = to_tidss_crtc(crtc);
struct drm_device *ddev = crtc->dev;
- struct tidss_device *tidss = ddev->dev_private;
+ struct tidss_device *tidss = to_tidss(ddev);
unsigned long flags;
dev_dbg(ddev->dev,
@@ -216,7 +216,7 @@ static void tidss_crtc_atomic_enable(struct drm_crtc *crtc,
{
struct tidss_crtc *tcrtc = to_tidss_crtc(crtc);
struct drm_device *ddev = crtc->dev;
- struct tidss_device *tidss = ddev->dev_private;
+ struct tidss_device *tidss = to_tidss(ddev);
const struct drm_display_mode *mode = &crtc->state->adjusted_mode;
unsigned long flags;
int r;
@@ -259,7 +259,7 @@ static void tidss_crtc_atomic_disable(struct drm_crtc *crtc,
{
struct tidss_crtc *tcrtc = to_tidss_crtc(crtc);
struct drm_device *ddev = crtc->dev;
- struct tidss_device *tidss = ddev->dev_private;
+ struct tidss_device *tidss = to_tidss(ddev);
unsigned long flags;
dev_dbg(ddev->dev, "%s, event %p\n", __func__, crtc->state->event);
@@ -295,7 +295,7 @@ enum drm_mode_status tidss_crtc_mode_valid(struct drm_crtc *crtc,
{
struct tidss_crtc *tcrtc = to_tidss_crtc(crtc);
struct drm_device *ddev = crtc->dev;
- struct tidss_device *tidss = ddev->dev_private;
+ struct tidss_device *tidss = to_tidss(ddev);
return dispc_vp_mode_valid(tidss->dispc, tcrtc->hw_videoport, mode);
}
@@ -314,7 +314,7 @@ static const struct drm_crtc_helper_funcs tidss_crtc_helper_funcs = {
static int tidss_crtc_enable_vblank(struct drm_crtc *crtc)
{
struct drm_device *ddev = crtc->dev;
- struct tidss_device *tidss = ddev->dev_private;
+ struct tidss_device *tidss = to_tidss(ddev);
dev_dbg(ddev->dev, "%s\n", __func__);
@@ -328,7 +328,7 @@ static int tidss_crtc_enable_vblank(struct drm_crtc *crtc)
static void tidss_crtc_disable_vblank(struct drm_crtc *crtc)
{
struct drm_device *ddev = crtc->dev;
- struct tidss_device *tidss = ddev->dev_private;
+ struct tidss_device *tidss = to_tidss(ddev);
dev_dbg(ddev->dev, "%s\n", __func__);
diff --git a/drivers/gpu/drm/tidss/tidss_drv.c b/drivers/gpu/drm/tidss/tidss_drv.c
index 7d4465d58be8..99edc66ebdef 100644
--- a/drivers/gpu/drm/tidss/tidss_drv.c
+++ b/drivers/gpu/drm/tidss/tidss_drv.c
@@ -147,8 +147,6 @@ static int tidss_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, tidss);
- ddev->dev_private = tidss;
-
ret = dispc_init(tidss);
if (ret) {
dev_err(dev, "failed to initialize dispc: %d\n", ret);
diff --git a/drivers/gpu/drm/tidss/tidss_drv.h b/drivers/gpu/drm/tidss/tidss_drv.h
index e2aa6436ad18..b23cd95c8d78 100644
--- a/drivers/gpu/drm/tidss/tidss_drv.h
+++ b/drivers/gpu/drm/tidss/tidss_drv.h
@@ -33,6 +33,8 @@ struct tidss_device {
struct drm_atomic_state *saved_state;
};
+#define to_tidss(__dev) container_of(__dev, struct tidss_device, ddev)
+
int tidss_runtime_get(struct tidss_device *tidss);
void tidss_runtime_put(struct tidss_device *tidss);
diff --git a/drivers/gpu/drm/tidss/tidss_irq.c b/drivers/gpu/drm/tidss/tidss_irq.c
index 612c046738e5..1b80f2d62e0a 100644
--- a/drivers/gpu/drm/tidss/tidss_irq.c
+++ b/drivers/gpu/drm/tidss/tidss_irq.c
@@ -23,7 +23,7 @@ static void tidss_irq_update(struct tidss_device *tidss)
void tidss_irq_enable_vblank(struct drm_crtc *crtc)
{
struct drm_device *ddev = crtc->dev;
- struct tidss_device *tidss = ddev->dev_private;
+ struct tidss_device *tidss = to_tidss(ddev);
struct tidss_crtc *tcrtc = to_tidss_crtc(crtc);
u32 hw_videoport = tcrtc->hw_videoport;
unsigned long flags;
@@ -38,7 +38,7 @@ void tidss_irq_enable_vblank(struct drm_crtc *crtc)
void tidss_irq_disable_vblank(struct drm_crtc *crtc)
{
struct drm_device *ddev = crtc->dev;
- struct tidss_device *tidss = ddev->dev_private;
+ struct tidss_device *tidss = to_tidss(ddev);
struct tidss_crtc *tcrtc = to_tidss_crtc(crtc);
u32 hw_videoport = tcrtc->hw_videoport;
unsigned long flags;
@@ -53,7 +53,7 @@ void tidss_irq_disable_vblank(struct drm_crtc *crtc)
irqreturn_t tidss_irq_handler(int irq, void *arg)
{
struct drm_device *ddev = (struct drm_device *)arg;
- struct tidss_device *tidss = ddev->dev_private;
+ struct tidss_device *tidss = to_tidss(ddev);
unsigned int id;
dispc_irq_t irqstatus;
@@ -95,7 +95,7 @@ void tidss_irq_resume(struct tidss_device *tidss)
void tidss_irq_preinstall(struct drm_device *ddev)
{
- struct tidss_device *tidss = ddev->dev_private;
+ struct tidss_device *tidss = to_tidss(ddev);
spin_lock_init(&tidss->wait_lock);
@@ -109,7 +109,7 @@ void tidss_irq_preinstall(struct drm_device *ddev)
int tidss_irq_postinstall(struct drm_device *ddev)
{
- struct tidss_device *tidss = ddev->dev_private;
+ struct tidss_device *tidss = to_tidss(ddev);
unsigned long flags;
unsigned int i;
@@ -138,7 +138,7 @@ int tidss_irq_postinstall(struct drm_device *ddev)
void tidss_irq_uninstall(struct drm_device *ddev)
{
- struct tidss_device *tidss = ddev->dev_private;
+ struct tidss_device *tidss = to_tidss(ddev);
tidss_runtime_get(tidss);
dispc_set_irqenable(tidss->dispc, 0);
diff --git a/drivers/gpu/drm/tidss/tidss_kms.c b/drivers/gpu/drm/tidss/tidss_kms.c
index 4bd339a467a4..4b99e9fa84a5 100644
--- a/drivers/gpu/drm/tidss/tidss_kms.c
+++ b/drivers/gpu/drm/tidss/tidss_kms.c
@@ -25,7 +25,7 @@
static void tidss_atomic_commit_tail(struct drm_atomic_state *old_state)
{
struct drm_device *ddev = old_state->dev;
- struct tidss_device *tidss = ddev->dev_private;
+ struct tidss_device *tidss = to_tidss(ddev);
dev_dbg(ddev->dev, "%s\n", __func__);
diff --git a/drivers/gpu/drm/tidss/tidss_plane.c b/drivers/gpu/drm/tidss/tidss_plane.c
index ff99b2dd4a17..23bb3e59504b 100644
--- a/drivers/gpu/drm/tidss/tidss_plane.c
+++ b/drivers/gpu/drm/tidss/tidss_plane.c
@@ -22,7 +22,7 @@ static int tidss_plane_atomic_check(struct drm_plane *plane,
struct drm_plane_state *state)
{
struct drm_device *ddev = plane->dev;
- struct tidss_device *tidss = ddev->dev_private;
+ struct tidss_device *tidss = to_tidss(ddev);
struct tidss_plane *tplane = to_tidss_plane(plane);
const struct drm_format_info *finfo;
struct drm_crtc_state *crtc_state;
@@ -101,7 +101,7 @@ static void tidss_plane_atomic_update(struct drm_plane *plane,
struct drm_plane_state *old_state)
{
struct drm_device *ddev = plane->dev;
- struct tidss_device *tidss = ddev->dev_private;
+ struct tidss_device *tidss = to_tidss(ddev);
struct tidss_plane *tplane = to_tidss_plane(plane);
struct drm_plane_state *state = plane->state;
u32 hw_videoport;
@@ -133,7 +133,7 @@ static void tidss_plane_atomic_disable(struct drm_plane *plane,
struct drm_plane_state *old_state)
{
struct drm_device *ddev = plane->dev;
- struct tidss_device *tidss = ddev->dev_private;
+ struct tidss_device *tidss = to_tidss(ddev);
struct tidss_plane *tplane = to_tidss_plane(plane);
dev_dbg(ddev->dev, "%s\n", __func__);
--
2.25.1
_______________________________________________
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dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [Intel-gfx] [PATCH 28/44] drm/tidss: Don't use drm_device->dev_private
@ 2020-04-03 13:58 ` Daniel Vetter
0 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:58 UTC (permalink / raw)
To: DRI Development
Cc: Daniel Vetter, Intel Graphics Development, Tomi Valkeinen,
Jyri Sarha, Daniel Vetter
Upcasting using a container_of macro is more typesafe, faster and
easier for the compiler to optimize.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Jyri Sarha <jsarha@ti.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
drivers/gpu/drm/tidss/tidss_crtc.c | 16 ++++++++--------
drivers/gpu/drm/tidss/tidss_drv.c | 2 --
drivers/gpu/drm/tidss/tidss_drv.h | 2 ++
drivers/gpu/drm/tidss/tidss_irq.c | 12 ++++++------
drivers/gpu/drm/tidss/tidss_kms.c | 2 +-
drivers/gpu/drm/tidss/tidss_plane.c | 6 +++---
6 files changed, 20 insertions(+), 20 deletions(-)
diff --git a/drivers/gpu/drm/tidss/tidss_crtc.c b/drivers/gpu/drm/tidss/tidss_crtc.c
index d4ce9bab8c7e..2396262c09e4 100644
--- a/drivers/gpu/drm/tidss/tidss_crtc.c
+++ b/drivers/gpu/drm/tidss/tidss_crtc.c
@@ -24,7 +24,7 @@
static void tidss_crtc_finish_page_flip(struct tidss_crtc *tcrtc)
{
struct drm_device *ddev = tcrtc->crtc.dev;
- struct tidss_device *tidss = ddev->dev_private;
+ struct tidss_device *tidss = to_tidss(ddev);
struct drm_pending_vblank_event *event;
unsigned long flags;
bool busy;
@@ -88,7 +88,7 @@ static int tidss_crtc_atomic_check(struct drm_crtc *crtc,
struct drm_crtc_state *state)
{
struct drm_device *ddev = crtc->dev;
- struct tidss_device *tidss = ddev->dev_private;
+ struct tidss_device *tidss = to_tidss(ddev);
struct dispc_device *dispc = tidss->dispc;
struct tidss_crtc *tcrtc = to_tidss_crtc(crtc);
u32 hw_videoport = tcrtc->hw_videoport;
@@ -165,7 +165,7 @@ static void tidss_crtc_atomic_flush(struct drm_crtc *crtc,
{
struct tidss_crtc *tcrtc = to_tidss_crtc(crtc);
struct drm_device *ddev = crtc->dev;
- struct tidss_device *tidss = ddev->dev_private;
+ struct tidss_device *tidss = to_tidss(ddev);
unsigned long flags;
dev_dbg(ddev->dev,
@@ -216,7 +216,7 @@ static void tidss_crtc_atomic_enable(struct drm_crtc *crtc,
{
struct tidss_crtc *tcrtc = to_tidss_crtc(crtc);
struct drm_device *ddev = crtc->dev;
- struct tidss_device *tidss = ddev->dev_private;
+ struct tidss_device *tidss = to_tidss(ddev);
const struct drm_display_mode *mode = &crtc->state->adjusted_mode;
unsigned long flags;
int r;
@@ -259,7 +259,7 @@ static void tidss_crtc_atomic_disable(struct drm_crtc *crtc,
{
struct tidss_crtc *tcrtc = to_tidss_crtc(crtc);
struct drm_device *ddev = crtc->dev;
- struct tidss_device *tidss = ddev->dev_private;
+ struct tidss_device *tidss = to_tidss(ddev);
unsigned long flags;
dev_dbg(ddev->dev, "%s, event %p\n", __func__, crtc->state->event);
@@ -295,7 +295,7 @@ enum drm_mode_status tidss_crtc_mode_valid(struct drm_crtc *crtc,
{
struct tidss_crtc *tcrtc = to_tidss_crtc(crtc);
struct drm_device *ddev = crtc->dev;
- struct tidss_device *tidss = ddev->dev_private;
+ struct tidss_device *tidss = to_tidss(ddev);
return dispc_vp_mode_valid(tidss->dispc, tcrtc->hw_videoport, mode);
}
@@ -314,7 +314,7 @@ static const struct drm_crtc_helper_funcs tidss_crtc_helper_funcs = {
static int tidss_crtc_enable_vblank(struct drm_crtc *crtc)
{
struct drm_device *ddev = crtc->dev;
- struct tidss_device *tidss = ddev->dev_private;
+ struct tidss_device *tidss = to_tidss(ddev);
dev_dbg(ddev->dev, "%s\n", __func__);
@@ -328,7 +328,7 @@ static int tidss_crtc_enable_vblank(struct drm_crtc *crtc)
static void tidss_crtc_disable_vblank(struct drm_crtc *crtc)
{
struct drm_device *ddev = crtc->dev;
- struct tidss_device *tidss = ddev->dev_private;
+ struct tidss_device *tidss = to_tidss(ddev);
dev_dbg(ddev->dev, "%s\n", __func__);
diff --git a/drivers/gpu/drm/tidss/tidss_drv.c b/drivers/gpu/drm/tidss/tidss_drv.c
index 7d4465d58be8..99edc66ebdef 100644
--- a/drivers/gpu/drm/tidss/tidss_drv.c
+++ b/drivers/gpu/drm/tidss/tidss_drv.c
@@ -147,8 +147,6 @@ static int tidss_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, tidss);
- ddev->dev_private = tidss;
-
ret = dispc_init(tidss);
if (ret) {
dev_err(dev, "failed to initialize dispc: %d\n", ret);
diff --git a/drivers/gpu/drm/tidss/tidss_drv.h b/drivers/gpu/drm/tidss/tidss_drv.h
index e2aa6436ad18..b23cd95c8d78 100644
--- a/drivers/gpu/drm/tidss/tidss_drv.h
+++ b/drivers/gpu/drm/tidss/tidss_drv.h
@@ -33,6 +33,8 @@ struct tidss_device {
struct drm_atomic_state *saved_state;
};
+#define to_tidss(__dev) container_of(__dev, struct tidss_device, ddev)
+
int tidss_runtime_get(struct tidss_device *tidss);
void tidss_runtime_put(struct tidss_device *tidss);
diff --git a/drivers/gpu/drm/tidss/tidss_irq.c b/drivers/gpu/drm/tidss/tidss_irq.c
index 612c046738e5..1b80f2d62e0a 100644
--- a/drivers/gpu/drm/tidss/tidss_irq.c
+++ b/drivers/gpu/drm/tidss/tidss_irq.c
@@ -23,7 +23,7 @@ static void tidss_irq_update(struct tidss_device *tidss)
void tidss_irq_enable_vblank(struct drm_crtc *crtc)
{
struct drm_device *ddev = crtc->dev;
- struct tidss_device *tidss = ddev->dev_private;
+ struct tidss_device *tidss = to_tidss(ddev);
struct tidss_crtc *tcrtc = to_tidss_crtc(crtc);
u32 hw_videoport = tcrtc->hw_videoport;
unsigned long flags;
@@ -38,7 +38,7 @@ void tidss_irq_enable_vblank(struct drm_crtc *crtc)
void tidss_irq_disable_vblank(struct drm_crtc *crtc)
{
struct drm_device *ddev = crtc->dev;
- struct tidss_device *tidss = ddev->dev_private;
+ struct tidss_device *tidss = to_tidss(ddev);
struct tidss_crtc *tcrtc = to_tidss_crtc(crtc);
u32 hw_videoport = tcrtc->hw_videoport;
unsigned long flags;
@@ -53,7 +53,7 @@ void tidss_irq_disable_vblank(struct drm_crtc *crtc)
irqreturn_t tidss_irq_handler(int irq, void *arg)
{
struct drm_device *ddev = (struct drm_device *)arg;
- struct tidss_device *tidss = ddev->dev_private;
+ struct tidss_device *tidss = to_tidss(ddev);
unsigned int id;
dispc_irq_t irqstatus;
@@ -95,7 +95,7 @@ void tidss_irq_resume(struct tidss_device *tidss)
void tidss_irq_preinstall(struct drm_device *ddev)
{
- struct tidss_device *tidss = ddev->dev_private;
+ struct tidss_device *tidss = to_tidss(ddev);
spin_lock_init(&tidss->wait_lock);
@@ -109,7 +109,7 @@ void tidss_irq_preinstall(struct drm_device *ddev)
int tidss_irq_postinstall(struct drm_device *ddev)
{
- struct tidss_device *tidss = ddev->dev_private;
+ struct tidss_device *tidss = to_tidss(ddev);
unsigned long flags;
unsigned int i;
@@ -138,7 +138,7 @@ int tidss_irq_postinstall(struct drm_device *ddev)
void tidss_irq_uninstall(struct drm_device *ddev)
{
- struct tidss_device *tidss = ddev->dev_private;
+ struct tidss_device *tidss = to_tidss(ddev);
tidss_runtime_get(tidss);
dispc_set_irqenable(tidss->dispc, 0);
diff --git a/drivers/gpu/drm/tidss/tidss_kms.c b/drivers/gpu/drm/tidss/tidss_kms.c
index 4bd339a467a4..4b99e9fa84a5 100644
--- a/drivers/gpu/drm/tidss/tidss_kms.c
+++ b/drivers/gpu/drm/tidss/tidss_kms.c
@@ -25,7 +25,7 @@
static void tidss_atomic_commit_tail(struct drm_atomic_state *old_state)
{
struct drm_device *ddev = old_state->dev;
- struct tidss_device *tidss = ddev->dev_private;
+ struct tidss_device *tidss = to_tidss(ddev);
dev_dbg(ddev->dev, "%s\n", __func__);
diff --git a/drivers/gpu/drm/tidss/tidss_plane.c b/drivers/gpu/drm/tidss/tidss_plane.c
index ff99b2dd4a17..23bb3e59504b 100644
--- a/drivers/gpu/drm/tidss/tidss_plane.c
+++ b/drivers/gpu/drm/tidss/tidss_plane.c
@@ -22,7 +22,7 @@ static int tidss_plane_atomic_check(struct drm_plane *plane,
struct drm_plane_state *state)
{
struct drm_device *ddev = plane->dev;
- struct tidss_device *tidss = ddev->dev_private;
+ struct tidss_device *tidss = to_tidss(ddev);
struct tidss_plane *tplane = to_tidss_plane(plane);
const struct drm_format_info *finfo;
struct drm_crtc_state *crtc_state;
@@ -101,7 +101,7 @@ static void tidss_plane_atomic_update(struct drm_plane *plane,
struct drm_plane_state *old_state)
{
struct drm_device *ddev = plane->dev;
- struct tidss_device *tidss = ddev->dev_private;
+ struct tidss_device *tidss = to_tidss(ddev);
struct tidss_plane *tplane = to_tidss_plane(plane);
struct drm_plane_state *state = plane->state;
u32 hw_videoport;
@@ -133,7 +133,7 @@ static void tidss_plane_atomic_disable(struct drm_plane *plane,
struct drm_plane_state *old_state)
{
struct drm_device *ddev = plane->dev;
- struct tidss_device *tidss = ddev->dev_private;
+ struct tidss_device *tidss = to_tidss(ddev);
struct tidss_plane *tplane = to_tidss_plane(plane);
dev_dbg(ddev->dev, "%s\n", __func__);
--
2.25.1
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [PATCH 29/44] drm/tidss: Delete tidss->saved_state
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-03 13:58 ` Daniel Vetter
-1 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:58 UTC (permalink / raw)
To: DRI Development
Cc: Daniel Vetter, Intel Graphics Development, Tomi Valkeinen,
Jyri Sarha, Daniel Vetter
Not used anymore since the switch to suspend/resume helpers.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Jyri Sarha <jsarha@ti.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
drivers/gpu/drm/tidss/tidss_drv.h | 2 --
1 file changed, 2 deletions(-)
diff --git a/drivers/gpu/drm/tidss/tidss_drv.h b/drivers/gpu/drm/tidss/tidss_drv.h
index b23cd95c8d78..3b0a3d87b7c4 100644
--- a/drivers/gpu/drm/tidss/tidss_drv.h
+++ b/drivers/gpu/drm/tidss/tidss_drv.h
@@ -29,8 +29,6 @@ struct tidss_device {
spinlock_t wait_lock; /* protects the irq masks */
dispc_irq_t irq_mask; /* enabled irqs in addition to wait_list */
-
- struct drm_atomic_state *saved_state;
};
#define to_tidss(__dev) container_of(__dev, struct tidss_device, ddev)
--
2.25.1
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [Intel-gfx] [PATCH 29/44] drm/tidss: Delete tidss->saved_state
@ 2020-04-03 13:58 ` Daniel Vetter
0 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:58 UTC (permalink / raw)
To: DRI Development
Cc: Daniel Vetter, Intel Graphics Development, Tomi Valkeinen,
Jyri Sarha, Daniel Vetter
Not used anymore since the switch to suspend/resume helpers.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Jyri Sarha <jsarha@ti.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
drivers/gpu/drm/tidss/tidss_drv.h | 2 --
1 file changed, 2 deletions(-)
diff --git a/drivers/gpu/drm/tidss/tidss_drv.h b/drivers/gpu/drm/tidss/tidss_drv.h
index b23cd95c8d78..3b0a3d87b7c4 100644
--- a/drivers/gpu/drm/tidss/tidss_drv.h
+++ b/drivers/gpu/drm/tidss/tidss_drv.h
@@ -29,8 +29,6 @@ struct tidss_device {
spinlock_t wait_lock; /* protects the irq masks */
dispc_irq_t irq_mask; /* enabled irqs in addition to wait_list */
-
- struct drm_atomic_state *saved_state;
};
#define to_tidss(__dev) container_of(__dev, struct tidss_device, ddev)
--
2.25.1
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [PATCH 30/44] drm/qxl: Use devm_drm_dev_alloc
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
(?)
@ 2020-04-03 13:58 ` Daniel Vetter
-1 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:58 UTC (permalink / raw)
To: DRI Development
Cc: spice-devel, Daniel Vetter, Intel Graphics Development,
virtualization, Daniel Vetter, Dave Airlie
Also need to remove the drm_dev_put from the remove hook.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Dave Airlie <airlied@redhat.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: virtualization@lists.linux-foundation.org
Cc: spice-devel@lists.freedesktop.org
---
drivers/gpu/drm/qxl/qxl_drv.c | 15 ++++++++-------
drivers/gpu/drm/qxl/qxl_drv.h | 3 +--
drivers/gpu/drm/qxl/qxl_kms.c | 12 +-----------
3 files changed, 10 insertions(+), 20 deletions(-)
diff --git a/drivers/gpu/drm/qxl/qxl_drv.c b/drivers/gpu/drm/qxl/qxl_drv.c
index 09102e2efabc..6b4ae4c5fb76 100644
--- a/drivers/gpu/drm/qxl/qxl_drv.c
+++ b/drivers/gpu/drm/qxl/qxl_drv.c
@@ -81,13 +81,16 @@ qxl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
return -EINVAL; /* TODO: ENODEV ? */
}
- qdev = kzalloc(sizeof(struct qxl_device), GFP_KERNEL);
- if (!qdev)
+ qdev = devm_drm_dev_alloc(&pdev->dev, &qxl_driver,
+ struct qxl_device, ddev);
+ if (IS_ERR(qdev)) {
+ pr_err("Unable to init drm dev");
return -ENOMEM;
+ }
ret = pci_enable_device(pdev);
if (ret)
- goto free_dev;
+ return ret;
ret = drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, "qxl");
if (ret)
@@ -101,7 +104,7 @@ qxl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
}
}
- ret = qxl_device_init(qdev, &qxl_driver, pdev);
+ ret = qxl_device_init(qdev, pdev);
if (ret)
goto put_vga;
@@ -128,8 +131,7 @@ qxl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
vga_put(pdev, VGA_RSRC_LEGACY_IO);
disable_pci:
pci_disable_device(pdev);
-free_dev:
- kfree(qdev);
+
return ret;
}
@@ -155,7 +157,6 @@ qxl_pci_remove(struct pci_dev *pdev)
drm_atomic_helper_shutdown(dev);
if (is_vga(pdev))
vga_put(pdev, VGA_RSRC_LEGACY_IO);
- drm_dev_put(dev);
}
DEFINE_DRM_GEM_FOPS(qxl_fops);
diff --git a/drivers/gpu/drm/qxl/qxl_drv.h b/drivers/gpu/drm/qxl/qxl_drv.h
index 435126facc9b..86ac191d9205 100644
--- a/drivers/gpu/drm/qxl/qxl_drv.h
+++ b/drivers/gpu/drm/qxl/qxl_drv.h
@@ -276,8 +276,7 @@ struct qxl_device {
extern const struct drm_ioctl_desc qxl_ioctls[];
extern int qxl_max_ioctl;
-int qxl_device_init(struct qxl_device *qdev, struct drm_driver *drv,
- struct pci_dev *pdev);
+int qxl_device_init(struct qxl_device *qdev, struct pci_dev *pdev);
void qxl_device_fini(struct qxl_device *qdev);
int qxl_modeset_init(struct qxl_device *qdev);
diff --git a/drivers/gpu/drm/qxl/qxl_kms.c b/drivers/gpu/drm/qxl/qxl_kms.c
index 9eed1a375f24..91a34dd835d7 100644
--- a/drivers/gpu/drm/qxl/qxl_kms.c
+++ b/drivers/gpu/drm/qxl/qxl_kms.c
@@ -108,21 +108,13 @@ static void qxl_gc_work(struct work_struct *work)
}
int qxl_device_init(struct qxl_device *qdev,
- struct drm_driver *drv,
struct pci_dev *pdev)
{
int r, sb;
- r = drm_dev_init(&qdev->ddev, drv, &pdev->dev);
- if (r) {
- pr_err("Unable to init drm dev");
- goto error;
- }
-
qdev->ddev.pdev = pdev;
pci_set_drvdata(pdev, &qdev->ddev);
qdev->ddev.dev_private = qdev;
- drmm_add_final_kfree(&qdev->ddev, qdev);
mutex_init(&qdev->gem.mutex);
mutex_init(&qdev->update_area_mutex);
@@ -138,8 +130,7 @@ int qxl_device_init(struct qxl_device *qdev,
qdev->vram_mapping = io_mapping_create_wc(qdev->vram_base, pci_resource_len(pdev, 0));
if (!qdev->vram_mapping) {
pr_err("Unable to create vram_mapping");
- r = -ENOMEM;
- goto error;
+ return -ENOMEM;
}
if (pci_resource_len(pdev, 4) > 0) {
@@ -293,7 +284,6 @@ int qxl_device_init(struct qxl_device *qdev,
io_mapping_free(qdev->surface_mapping);
vram_mapping_free:
io_mapping_free(qdev->vram_mapping);
-error:
return r;
}
--
2.25.1
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [PATCH 30/44] drm/qxl: Use devm_drm_dev_alloc
@ 2020-04-03 13:58 ` Daniel Vetter
0 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:58 UTC (permalink / raw)
To: DRI Development
Cc: spice-devel, Daniel Vetter, Intel Graphics Development,
virtualization, Gerd Hoffmann, Daniel Vetter, Dave Airlie
Also need to remove the drm_dev_put from the remove hook.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Dave Airlie <airlied@redhat.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: virtualization@lists.linux-foundation.org
Cc: spice-devel@lists.freedesktop.org
---
drivers/gpu/drm/qxl/qxl_drv.c | 15 ++++++++-------
drivers/gpu/drm/qxl/qxl_drv.h | 3 +--
drivers/gpu/drm/qxl/qxl_kms.c | 12 +-----------
3 files changed, 10 insertions(+), 20 deletions(-)
diff --git a/drivers/gpu/drm/qxl/qxl_drv.c b/drivers/gpu/drm/qxl/qxl_drv.c
index 09102e2efabc..6b4ae4c5fb76 100644
--- a/drivers/gpu/drm/qxl/qxl_drv.c
+++ b/drivers/gpu/drm/qxl/qxl_drv.c
@@ -81,13 +81,16 @@ qxl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
return -EINVAL; /* TODO: ENODEV ? */
}
- qdev = kzalloc(sizeof(struct qxl_device), GFP_KERNEL);
- if (!qdev)
+ qdev = devm_drm_dev_alloc(&pdev->dev, &qxl_driver,
+ struct qxl_device, ddev);
+ if (IS_ERR(qdev)) {
+ pr_err("Unable to init drm dev");
return -ENOMEM;
+ }
ret = pci_enable_device(pdev);
if (ret)
- goto free_dev;
+ return ret;
ret = drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, "qxl");
if (ret)
@@ -101,7 +104,7 @@ qxl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
}
}
- ret = qxl_device_init(qdev, &qxl_driver, pdev);
+ ret = qxl_device_init(qdev, pdev);
if (ret)
goto put_vga;
@@ -128,8 +131,7 @@ qxl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
vga_put(pdev, VGA_RSRC_LEGACY_IO);
disable_pci:
pci_disable_device(pdev);
-free_dev:
- kfree(qdev);
+
return ret;
}
@@ -155,7 +157,6 @@ qxl_pci_remove(struct pci_dev *pdev)
drm_atomic_helper_shutdown(dev);
if (is_vga(pdev))
vga_put(pdev, VGA_RSRC_LEGACY_IO);
- drm_dev_put(dev);
}
DEFINE_DRM_GEM_FOPS(qxl_fops);
diff --git a/drivers/gpu/drm/qxl/qxl_drv.h b/drivers/gpu/drm/qxl/qxl_drv.h
index 435126facc9b..86ac191d9205 100644
--- a/drivers/gpu/drm/qxl/qxl_drv.h
+++ b/drivers/gpu/drm/qxl/qxl_drv.h
@@ -276,8 +276,7 @@ struct qxl_device {
extern const struct drm_ioctl_desc qxl_ioctls[];
extern int qxl_max_ioctl;
-int qxl_device_init(struct qxl_device *qdev, struct drm_driver *drv,
- struct pci_dev *pdev);
+int qxl_device_init(struct qxl_device *qdev, struct pci_dev *pdev);
void qxl_device_fini(struct qxl_device *qdev);
int qxl_modeset_init(struct qxl_device *qdev);
diff --git a/drivers/gpu/drm/qxl/qxl_kms.c b/drivers/gpu/drm/qxl/qxl_kms.c
index 9eed1a375f24..91a34dd835d7 100644
--- a/drivers/gpu/drm/qxl/qxl_kms.c
+++ b/drivers/gpu/drm/qxl/qxl_kms.c
@@ -108,21 +108,13 @@ static void qxl_gc_work(struct work_struct *work)
}
int qxl_device_init(struct qxl_device *qdev,
- struct drm_driver *drv,
struct pci_dev *pdev)
{
int r, sb;
- r = drm_dev_init(&qdev->ddev, drv, &pdev->dev);
- if (r) {
- pr_err("Unable to init drm dev");
- goto error;
- }
-
qdev->ddev.pdev = pdev;
pci_set_drvdata(pdev, &qdev->ddev);
qdev->ddev.dev_private = qdev;
- drmm_add_final_kfree(&qdev->ddev, qdev);
mutex_init(&qdev->gem.mutex);
mutex_init(&qdev->update_area_mutex);
@@ -138,8 +130,7 @@ int qxl_device_init(struct qxl_device *qdev,
qdev->vram_mapping = io_mapping_create_wc(qdev->vram_base, pci_resource_len(pdev, 0));
if (!qdev->vram_mapping) {
pr_err("Unable to create vram_mapping");
- r = -ENOMEM;
- goto error;
+ return -ENOMEM;
}
if (pci_resource_len(pdev, 4) > 0) {
@@ -293,7 +284,6 @@ int qxl_device_init(struct qxl_device *qdev,
io_mapping_free(qdev->surface_mapping);
vram_mapping_free:
io_mapping_free(qdev->vram_mapping);
-error:
return r;
}
--
2.25.1
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [Intel-gfx] [PATCH 30/44] drm/qxl: Use devm_drm_dev_alloc
@ 2020-04-03 13:58 ` Daniel Vetter
0 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:58 UTC (permalink / raw)
To: DRI Development
Cc: spice-devel, Daniel Vetter, Intel Graphics Development,
virtualization, Gerd Hoffmann, Daniel Vetter, Dave Airlie
Also need to remove the drm_dev_put from the remove hook.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Dave Airlie <airlied@redhat.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: virtualization@lists.linux-foundation.org
Cc: spice-devel@lists.freedesktop.org
---
drivers/gpu/drm/qxl/qxl_drv.c | 15 ++++++++-------
drivers/gpu/drm/qxl/qxl_drv.h | 3 +--
drivers/gpu/drm/qxl/qxl_kms.c | 12 +-----------
3 files changed, 10 insertions(+), 20 deletions(-)
diff --git a/drivers/gpu/drm/qxl/qxl_drv.c b/drivers/gpu/drm/qxl/qxl_drv.c
index 09102e2efabc..6b4ae4c5fb76 100644
--- a/drivers/gpu/drm/qxl/qxl_drv.c
+++ b/drivers/gpu/drm/qxl/qxl_drv.c
@@ -81,13 +81,16 @@ qxl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
return -EINVAL; /* TODO: ENODEV ? */
}
- qdev = kzalloc(sizeof(struct qxl_device), GFP_KERNEL);
- if (!qdev)
+ qdev = devm_drm_dev_alloc(&pdev->dev, &qxl_driver,
+ struct qxl_device, ddev);
+ if (IS_ERR(qdev)) {
+ pr_err("Unable to init drm dev");
return -ENOMEM;
+ }
ret = pci_enable_device(pdev);
if (ret)
- goto free_dev;
+ return ret;
ret = drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, "qxl");
if (ret)
@@ -101,7 +104,7 @@ qxl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
}
}
- ret = qxl_device_init(qdev, &qxl_driver, pdev);
+ ret = qxl_device_init(qdev, pdev);
if (ret)
goto put_vga;
@@ -128,8 +131,7 @@ qxl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
vga_put(pdev, VGA_RSRC_LEGACY_IO);
disable_pci:
pci_disable_device(pdev);
-free_dev:
- kfree(qdev);
+
return ret;
}
@@ -155,7 +157,6 @@ qxl_pci_remove(struct pci_dev *pdev)
drm_atomic_helper_shutdown(dev);
if (is_vga(pdev))
vga_put(pdev, VGA_RSRC_LEGACY_IO);
- drm_dev_put(dev);
}
DEFINE_DRM_GEM_FOPS(qxl_fops);
diff --git a/drivers/gpu/drm/qxl/qxl_drv.h b/drivers/gpu/drm/qxl/qxl_drv.h
index 435126facc9b..86ac191d9205 100644
--- a/drivers/gpu/drm/qxl/qxl_drv.h
+++ b/drivers/gpu/drm/qxl/qxl_drv.h
@@ -276,8 +276,7 @@ struct qxl_device {
extern const struct drm_ioctl_desc qxl_ioctls[];
extern int qxl_max_ioctl;
-int qxl_device_init(struct qxl_device *qdev, struct drm_driver *drv,
- struct pci_dev *pdev);
+int qxl_device_init(struct qxl_device *qdev, struct pci_dev *pdev);
void qxl_device_fini(struct qxl_device *qdev);
int qxl_modeset_init(struct qxl_device *qdev);
diff --git a/drivers/gpu/drm/qxl/qxl_kms.c b/drivers/gpu/drm/qxl/qxl_kms.c
index 9eed1a375f24..91a34dd835d7 100644
--- a/drivers/gpu/drm/qxl/qxl_kms.c
+++ b/drivers/gpu/drm/qxl/qxl_kms.c
@@ -108,21 +108,13 @@ static void qxl_gc_work(struct work_struct *work)
}
int qxl_device_init(struct qxl_device *qdev,
- struct drm_driver *drv,
struct pci_dev *pdev)
{
int r, sb;
- r = drm_dev_init(&qdev->ddev, drv, &pdev->dev);
- if (r) {
- pr_err("Unable to init drm dev");
- goto error;
- }
-
qdev->ddev.pdev = pdev;
pci_set_drvdata(pdev, &qdev->ddev);
qdev->ddev.dev_private = qdev;
- drmm_add_final_kfree(&qdev->ddev, qdev);
mutex_init(&qdev->gem.mutex);
mutex_init(&qdev->update_area_mutex);
@@ -138,8 +130,7 @@ int qxl_device_init(struct qxl_device *qdev,
qdev->vram_mapping = io_mapping_create_wc(qdev->vram_base, pci_resource_len(pdev, 0));
if (!qdev->vram_mapping) {
pr_err("Unable to create vram_mapping");
- r = -ENOMEM;
- goto error;
+ return -ENOMEM;
}
if (pci_resource_len(pdev, 4) > 0) {
@@ -293,7 +284,6 @@ int qxl_device_init(struct qxl_device *qdev,
io_mapping_free(qdev->surface_mapping);
vram_mapping_free:
io_mapping_free(qdev->vram_mapping);
-error:
return r;
}
--
2.25.1
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [PATCH 31/44] drm/qxl: Don't use drm_device->dev_private
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
(?)
@ 2020-04-03 13:58 ` Daniel Vetter
-1 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:58 UTC (permalink / raw)
To: DRI Development
Cc: spice-devel, Daniel Vetter, Intel Graphics Development,
virtualization, Daniel Vetter, Dave Airlie
Upcasting using a container_of macro is more typesafe, faster and
easier for the compiler to optimize.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Dave Airlie <airlied@redhat.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: virtualization@lists.linux-foundation.org
Cc: spice-devel@lists.freedesktop.org
---
drivers/gpu/drm/qxl/qxl_debugfs.c | 7 +++----
drivers/gpu/drm/qxl/qxl_display.c | 32 +++++++++++++++----------------
drivers/gpu/drm/qxl/qxl_drv.c | 8 ++++----
drivers/gpu/drm/qxl/qxl_drv.h | 4 ++--
drivers/gpu/drm/qxl/qxl_dumb.c | 2 +-
drivers/gpu/drm/qxl/qxl_gem.c | 2 +-
drivers/gpu/drm/qxl/qxl_ioctl.c | 14 +++++++-------
drivers/gpu/drm/qxl/qxl_irq.c | 2 +-
drivers/gpu/drm/qxl/qxl_kms.c | 1 -
drivers/gpu/drm/qxl/qxl_object.c | 2 +-
drivers/gpu/drm/qxl/qxl_release.c | 2 +-
drivers/gpu/drm/qxl/qxl_ttm.c | 2 +-
12 files changed, 38 insertions(+), 40 deletions(-)
diff --git a/drivers/gpu/drm/qxl/qxl_debugfs.c b/drivers/gpu/drm/qxl/qxl_debugfs.c
index 88123047fdd4..524d35b648d8 100644
--- a/drivers/gpu/drm/qxl/qxl_debugfs.c
+++ b/drivers/gpu/drm/qxl/qxl_debugfs.c
@@ -39,7 +39,7 @@ static int
qxl_debugfs_irq_received(struct seq_file *m, void *data)
{
struct drm_info_node *node = (struct drm_info_node *) m->private;
- struct qxl_device *qdev = node->minor->dev->dev_private;
+ struct qxl_device *qdev = to_qxl(node->minor->dev);
seq_printf(m, "%d\n", atomic_read(&qdev->irq_received));
seq_printf(m, "%d\n", atomic_read(&qdev->irq_received_display));
@@ -53,7 +53,7 @@ static int
qxl_debugfs_buffers_info(struct seq_file *m, void *data)
{
struct drm_info_node *node = (struct drm_info_node *) m->private;
- struct qxl_device *qdev = node->minor->dev->dev_private;
+ struct qxl_device *qdev = to_qxl(node->minor->dev);
struct qxl_bo *bo;
list_for_each_entry(bo, &qdev->gem.objects, list) {
@@ -83,8 +83,7 @@ void
qxl_debugfs_init(struct drm_minor *minor)
{
#if defined(CONFIG_DEBUG_FS)
- struct qxl_device *dev =
- (struct qxl_device *) minor->dev->dev_private;
+ struct qxl_device *dev = to_qxl(minor->dev);
drm_debugfs_create_files(qxl_debugfs_list, QXL_DEBUGFS_ENTRIES,
minor->debugfs_root, minor);
diff --git a/drivers/gpu/drm/qxl/qxl_display.c b/drivers/gpu/drm/qxl/qxl_display.c
index 09583a08e141..1082cd5d2fd4 100644
--- a/drivers/gpu/drm/qxl/qxl_display.c
+++ b/drivers/gpu/drm/qxl/qxl_display.c
@@ -221,7 +221,7 @@ static int qxl_add_mode(struct drm_connector *connector,
bool preferred)
{
struct drm_device *dev = connector->dev;
- struct qxl_device *qdev = dev->dev_private;
+ struct qxl_device *qdev = to_qxl(dev);
struct drm_display_mode *mode = NULL;
int rc;
@@ -242,7 +242,7 @@ static int qxl_add_mode(struct drm_connector *connector,
static int qxl_add_monitors_config_modes(struct drm_connector *connector)
{
struct drm_device *dev = connector->dev;
- struct qxl_device *qdev = dev->dev_private;
+ struct qxl_device *qdev = to_qxl(dev);
struct qxl_output *output = drm_connector_to_qxl_output(connector);
int h = output->index;
struct qxl_head *head;
@@ -310,7 +310,7 @@ static void qxl_crtc_update_monitors_config(struct drm_crtc *crtc,
const char *reason)
{
struct drm_device *dev = crtc->dev;
- struct qxl_device *qdev = dev->dev_private;
+ struct qxl_device *qdev = to_qxl(dev);
struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
struct qxl_head head;
int oldcount, i = qcrtc->index;
@@ -400,7 +400,7 @@ static int qxl_framebuffer_surface_dirty(struct drm_framebuffer *fb,
unsigned int num_clips)
{
/* TODO: vmwgfx where this was cribbed from had locking. Why? */
- struct qxl_device *qdev = fb->dev->dev_private;
+ struct qxl_device *qdev = to_qxl(fb->dev);
struct drm_clip_rect norect;
struct qxl_bo *qobj;
bool is_primary;
@@ -462,7 +462,7 @@ static const struct drm_crtc_helper_funcs qxl_crtc_helper_funcs = {
static int qxl_primary_atomic_check(struct drm_plane *plane,
struct drm_plane_state *state)
{
- struct qxl_device *qdev = plane->dev->dev_private;
+ struct qxl_device *qdev = to_qxl(plane->dev);
struct qxl_bo *bo;
if (!state->crtc || !state->fb)
@@ -476,7 +476,7 @@ static int qxl_primary_atomic_check(struct drm_plane *plane,
static int qxl_primary_apply_cursor(struct drm_plane *plane)
{
struct drm_device *dev = plane->dev;
- struct qxl_device *qdev = dev->dev_private;
+ struct qxl_device *qdev = to_qxl(dev);
struct drm_framebuffer *fb = plane->state->fb;
struct qxl_crtc *qcrtc = to_qxl_crtc(plane->state->crtc);
struct qxl_cursor_cmd *cmd;
@@ -523,7 +523,7 @@ static int qxl_primary_apply_cursor(struct drm_plane *plane)
static void qxl_primary_atomic_update(struct drm_plane *plane,
struct drm_plane_state *old_state)
{
- struct qxl_device *qdev = plane->dev->dev_private;
+ struct qxl_device *qdev = to_qxl(plane->dev);
struct qxl_bo *bo = gem_to_qxl_bo(plane->state->fb->obj[0]);
struct qxl_bo *primary;
struct drm_clip_rect norect = {
@@ -554,7 +554,7 @@ static void qxl_primary_atomic_update(struct drm_plane *plane,
static void qxl_primary_atomic_disable(struct drm_plane *plane,
struct drm_plane_state *old_state)
{
- struct qxl_device *qdev = plane->dev->dev_private;
+ struct qxl_device *qdev = to_qxl(plane->dev);
if (old_state->fb) {
struct qxl_bo *bo = gem_to_qxl_bo(old_state->fb->obj[0]);
@@ -570,7 +570,7 @@ static void qxl_cursor_atomic_update(struct drm_plane *plane,
struct drm_plane_state *old_state)
{
struct drm_device *dev = plane->dev;
- struct qxl_device *qdev = dev->dev_private;
+ struct qxl_device *qdev = to_qxl(dev);
struct drm_framebuffer *fb = plane->state->fb;
struct qxl_crtc *qcrtc = to_qxl_crtc(plane->state->crtc);
struct qxl_release *release;
@@ -679,7 +679,7 @@ static void qxl_cursor_atomic_update(struct drm_plane *plane,
static void qxl_cursor_atomic_disable(struct drm_plane *plane,
struct drm_plane_state *old_state)
{
- struct qxl_device *qdev = plane->dev->dev_private;
+ struct qxl_device *qdev = to_qxl(plane->dev);
struct qxl_release *release;
struct qxl_cursor_cmd *cmd;
int ret;
@@ -762,7 +762,7 @@ static void qxl_calc_dumb_shadow(struct qxl_device *qdev,
static int qxl_plane_prepare_fb(struct drm_plane *plane,
struct drm_plane_state *new_state)
{
- struct qxl_device *qdev = plane->dev->dev_private;
+ struct qxl_device *qdev = to_qxl(plane->dev);
struct drm_gem_object *obj;
struct qxl_bo *user_bo;
struct qxl_surface surf;
@@ -923,7 +923,7 @@ static int qdev_crtc_init(struct drm_device *dev, int crtc_id)
{
struct qxl_crtc *qxl_crtc;
struct drm_plane *primary, *cursor;
- struct qxl_device *qdev = dev->dev_private;
+ struct qxl_device *qdev = to_qxl(dev);
int r;
qxl_crtc = kzalloc(sizeof(struct qxl_crtc), GFP_KERNEL);
@@ -965,7 +965,7 @@ static int qdev_crtc_init(struct drm_device *dev, int crtc_id)
static int qxl_conn_get_modes(struct drm_connector *connector)
{
struct drm_device *dev = connector->dev;
- struct qxl_device *qdev = dev->dev_private;
+ struct qxl_device *qdev = to_qxl(dev);
struct qxl_output *output = drm_connector_to_qxl_output(connector);
unsigned int pwidth = 1024;
unsigned int pheight = 768;
@@ -991,7 +991,7 @@ static enum drm_mode_status qxl_conn_mode_valid(struct drm_connector *connector,
struct drm_display_mode *mode)
{
struct drm_device *ddev = connector->dev;
- struct qxl_device *qdev = ddev->dev_private;
+ struct qxl_device *qdev = to_qxl(ddev);
if (qxl_check_mode(qdev, mode->hdisplay, mode->vdisplay) != 0)
return MODE_BAD;
@@ -1021,7 +1021,7 @@ static enum drm_connector_status qxl_conn_detect(
struct qxl_output *output =
drm_connector_to_qxl_output(connector);
struct drm_device *ddev = connector->dev;
- struct qxl_device *qdev = ddev->dev_private;
+ struct qxl_device *qdev = to_qxl(ddev);
bool connected = false;
/* The first monitor is always connected */
@@ -1071,7 +1071,7 @@ static int qxl_mode_create_hotplug_mode_update_property(struct qxl_device *qdev)
static int qdev_output_init(struct drm_device *dev, int num_output)
{
- struct qxl_device *qdev = dev->dev_private;
+ struct qxl_device *qdev = to_qxl(dev);
struct qxl_output *qxl_output;
struct drm_connector *connector;
struct drm_encoder *encoder;
diff --git a/drivers/gpu/drm/qxl/qxl_drv.c b/drivers/gpu/drm/qxl/qxl_drv.c
index 6b4ae4c5fb76..13872b882775 100644
--- a/drivers/gpu/drm/qxl/qxl_drv.c
+++ b/drivers/gpu/drm/qxl/qxl_drv.c
@@ -137,7 +137,7 @@ qxl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
static void qxl_drm_release(struct drm_device *dev)
{
- struct qxl_device *qdev = dev->dev_private;
+ struct qxl_device *qdev = to_qxl(dev);
/*
* TODO: qxl_device_fini() call should be in qxl_pci_remove(),
@@ -164,7 +164,7 @@ DEFINE_DRM_GEM_FOPS(qxl_fops);
static int qxl_drm_freeze(struct drm_device *dev)
{
struct pci_dev *pdev = dev->pdev;
- struct qxl_device *qdev = dev->dev_private;
+ struct qxl_device *qdev = to_qxl(dev);
int ret;
ret = drm_mode_config_helper_suspend(dev);
@@ -186,7 +186,7 @@ static int qxl_drm_freeze(struct drm_device *dev)
static int qxl_drm_resume(struct drm_device *dev, bool thaw)
{
- struct qxl_device *qdev = dev->dev_private;
+ struct qxl_device *qdev = to_qxl(dev);
qdev->ram_header->int_mask = QXL_INTERRUPT_MASK;
if (!thaw) {
@@ -245,7 +245,7 @@ static int qxl_pm_restore(struct device *dev)
{
struct pci_dev *pdev = to_pci_dev(dev);
struct drm_device *drm_dev = pci_get_drvdata(pdev);
- struct qxl_device *qdev = drm_dev->dev_private;
+ struct qxl_device *qdev = to_qxl(drm_dev);
qxl_io_reset(qdev);
return qxl_drm_resume(drm_dev, false);
diff --git a/drivers/gpu/drm/qxl/qxl_drv.h b/drivers/gpu/drm/qxl/qxl_drv.h
index 86ac191d9205..31e35f787df2 100644
--- a/drivers/gpu/drm/qxl/qxl_drv.h
+++ b/drivers/gpu/drm/qxl/qxl_drv.h
@@ -192,8 +192,6 @@ struct qxl_debugfs {
int qxl_debugfs_fence_init(struct qxl_device *rdev);
-struct qxl_device;
-
struct qxl_device {
struct drm_device ddev;
@@ -273,6 +271,8 @@ struct qxl_device {
int monitors_config_height;
};
+#define to_qxl(dev) container_of(dev, struct qxl_device, ddev)
+
extern const struct drm_ioctl_desc qxl_ioctls[];
extern int qxl_max_ioctl;
diff --git a/drivers/gpu/drm/qxl/qxl_dumb.c b/drivers/gpu/drm/qxl/qxl_dumb.c
index 272d19b677d8..24e903383aa1 100644
--- a/drivers/gpu/drm/qxl/qxl_dumb.c
+++ b/drivers/gpu/drm/qxl/qxl_dumb.c
@@ -32,7 +32,7 @@ int qxl_mode_dumb_create(struct drm_file *file_priv,
struct drm_device *dev,
struct drm_mode_create_dumb *args)
{
- struct qxl_device *qdev = dev->dev_private;
+ struct qxl_device *qdev = to_qxl(dev);
struct qxl_bo *qobj;
uint32_t handle;
int r;
diff --git a/drivers/gpu/drm/qxl/qxl_gem.c b/drivers/gpu/drm/qxl/qxl_gem.c
index 69f37db1027a..5ff6fa9b799c 100644
--- a/drivers/gpu/drm/qxl/qxl_gem.c
+++ b/drivers/gpu/drm/qxl/qxl_gem.c
@@ -34,7 +34,7 @@ void qxl_gem_object_free(struct drm_gem_object *gobj)
struct qxl_device *qdev;
struct ttm_buffer_object *tbo;
- qdev = (struct qxl_device *)gobj->dev->dev_private;
+ qdev = to_qxl(gobj->dev);
qxl_surface_evict(qdev, qobj, false);
diff --git a/drivers/gpu/drm/qxl/qxl_ioctl.c b/drivers/gpu/drm/qxl/qxl_ioctl.c
index 8117a45b3610..d9a583966949 100644
--- a/drivers/gpu/drm/qxl/qxl_ioctl.c
+++ b/drivers/gpu/drm/qxl/qxl_ioctl.c
@@ -36,7 +36,7 @@
static int qxl_alloc_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
- struct qxl_device *qdev = dev->dev_private;
+ struct qxl_device *qdev = to_qxl(dev);
struct drm_qxl_alloc *qxl_alloc = data;
int ret;
struct qxl_bo *qobj;
@@ -64,7 +64,7 @@ static int qxl_alloc_ioctl(struct drm_device *dev, void *data,
static int qxl_map_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
- struct qxl_device *qdev = dev->dev_private;
+ struct qxl_device *qdev = to_qxl(dev);
struct drm_qxl_map *qxl_map = data;
return qxl_mode_dumb_mmap(file_priv, &qdev->ddev, qxl_map->handle,
@@ -279,7 +279,7 @@ static int qxl_process_single_command(struct qxl_device *qdev,
static int qxl_execbuffer_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
- struct qxl_device *qdev = dev->dev_private;
+ struct qxl_device *qdev = to_qxl(dev);
struct drm_qxl_execbuffer *execbuffer = data;
struct drm_qxl_command user_cmd;
int cmd_num;
@@ -304,7 +304,7 @@ static int qxl_execbuffer_ioctl(struct drm_device *dev, void *data,
static int qxl_update_area_ioctl(struct drm_device *dev, void *data,
struct drm_file *file)
{
- struct qxl_device *qdev = dev->dev_private;
+ struct qxl_device *qdev = to_qxl(dev);
struct drm_qxl_update_area *update_area = data;
struct qxl_rect area = {.left = update_area->left,
.top = update_area->top,
@@ -354,7 +354,7 @@ static int qxl_update_area_ioctl(struct drm_device *dev, void *data,
static int qxl_getparam_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
- struct qxl_device *qdev = dev->dev_private;
+ struct qxl_device *qdev = to_qxl(dev);
struct drm_qxl_getparam *param = data;
switch (param->param) {
@@ -373,7 +373,7 @@ static int qxl_getparam_ioctl(struct drm_device *dev, void *data,
static int qxl_clientcap_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
- struct qxl_device *qdev = dev->dev_private;
+ struct qxl_device *qdev = to_qxl(dev);
struct drm_qxl_clientcap *param = data;
int byte, idx;
@@ -394,7 +394,7 @@ static int qxl_clientcap_ioctl(struct drm_device *dev, void *data,
static int qxl_alloc_surf_ioctl(struct drm_device *dev, void *data,
struct drm_file *file)
{
- struct qxl_device *qdev = dev->dev_private;
+ struct qxl_device *qdev = to_qxl(dev);
struct drm_qxl_alloc_surf *param = data;
struct qxl_bo *qobj;
int handle;
diff --git a/drivers/gpu/drm/qxl/qxl_irq.c b/drivers/gpu/drm/qxl/qxl_irq.c
index 8435af108632..1ba5a702d763 100644
--- a/drivers/gpu/drm/qxl/qxl_irq.c
+++ b/drivers/gpu/drm/qxl/qxl_irq.c
@@ -32,7 +32,7 @@
irqreturn_t qxl_irq_handler(int irq, void *arg)
{
struct drm_device *dev = (struct drm_device *) arg;
- struct qxl_device *qdev = (struct qxl_device *)dev->dev_private;
+ struct qxl_device *qdev = to_qxl(dev);
uint32_t pending;
pending = xchg(&qdev->ram_header->int_pending, 0);
diff --git a/drivers/gpu/drm/qxl/qxl_kms.c b/drivers/gpu/drm/qxl/qxl_kms.c
index 91a34dd835d7..a6d873052cd4 100644
--- a/drivers/gpu/drm/qxl/qxl_kms.c
+++ b/drivers/gpu/drm/qxl/qxl_kms.c
@@ -114,7 +114,6 @@ int qxl_device_init(struct qxl_device *qdev,
qdev->ddev.pdev = pdev;
pci_set_drvdata(pdev, &qdev->ddev);
- qdev->ddev.dev_private = qdev;
mutex_init(&qdev->gem.mutex);
mutex_init(&qdev->update_area_mutex);
diff --git a/drivers/gpu/drm/qxl/qxl_object.c b/drivers/gpu/drm/qxl/qxl_object.c
index ab72dc3476e9..edc8a9916872 100644
--- a/drivers/gpu/drm/qxl/qxl_object.c
+++ b/drivers/gpu/drm/qxl/qxl_object.c
@@ -33,7 +33,7 @@ static void qxl_ttm_bo_destroy(struct ttm_buffer_object *tbo)
struct qxl_device *qdev;
bo = to_qxl_bo(tbo);
- qdev = (struct qxl_device *)bo->tbo.base.dev->dev_private;
+ qdev = to_qxl(bo->tbo.base.dev);
qxl_surface_evict(qdev, bo, false);
WARN_ON_ONCE(bo->map_count > 0);
diff --git a/drivers/gpu/drm/qxl/qxl_release.c b/drivers/gpu/drm/qxl/qxl_release.c
index 2feca734c7b1..4fae3e393da1 100644
--- a/drivers/gpu/drm/qxl/qxl_release.c
+++ b/drivers/gpu/drm/qxl/qxl_release.c
@@ -243,7 +243,7 @@ static int qxl_release_validate_bo(struct qxl_bo *bo)
return ret;
/* allocate a surface for reserved + validated buffers */
- ret = qxl_bo_check_id(bo->tbo.base.dev->dev_private, bo);
+ ret = qxl_bo_check_id(to_qxl(bo->tbo.base.dev), bo);
if (ret)
return ret;
return 0;
diff --git a/drivers/gpu/drm/qxl/qxl_ttm.c b/drivers/gpu/drm/qxl/qxl_ttm.c
index 93a2eb14844b..f09a712b1ed2 100644
--- a/drivers/gpu/drm/qxl/qxl_ttm.c
+++ b/drivers/gpu/drm/qxl/qxl_ttm.c
@@ -243,7 +243,7 @@ static void qxl_bo_move_notify(struct ttm_buffer_object *bo,
if (!qxl_ttm_bo_is_qxl_bo(bo))
return;
qbo = to_qxl_bo(bo);
- qdev = qbo->tbo.base.dev->dev_private;
+ qdev = to_qxl(qbo->tbo.base.dev);
if (bo->mem.mem_type == TTM_PL_PRIV && qbo->surface_id)
qxl_surface_evict(qdev, qbo, new_mem ? true : false);
--
2.25.1
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [PATCH 31/44] drm/qxl: Don't use drm_device->dev_private
@ 2020-04-03 13:58 ` Daniel Vetter
0 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:58 UTC (permalink / raw)
To: DRI Development
Cc: spice-devel, Daniel Vetter, Intel Graphics Development,
virtualization, Gerd Hoffmann, Daniel Vetter, Dave Airlie
Upcasting using a container_of macro is more typesafe, faster and
easier for the compiler to optimize.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Dave Airlie <airlied@redhat.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: virtualization@lists.linux-foundation.org
Cc: spice-devel@lists.freedesktop.org
---
drivers/gpu/drm/qxl/qxl_debugfs.c | 7 +++----
drivers/gpu/drm/qxl/qxl_display.c | 32 +++++++++++++++----------------
drivers/gpu/drm/qxl/qxl_drv.c | 8 ++++----
drivers/gpu/drm/qxl/qxl_drv.h | 4 ++--
drivers/gpu/drm/qxl/qxl_dumb.c | 2 +-
drivers/gpu/drm/qxl/qxl_gem.c | 2 +-
drivers/gpu/drm/qxl/qxl_ioctl.c | 14 +++++++-------
drivers/gpu/drm/qxl/qxl_irq.c | 2 +-
drivers/gpu/drm/qxl/qxl_kms.c | 1 -
drivers/gpu/drm/qxl/qxl_object.c | 2 +-
drivers/gpu/drm/qxl/qxl_release.c | 2 +-
drivers/gpu/drm/qxl/qxl_ttm.c | 2 +-
12 files changed, 38 insertions(+), 40 deletions(-)
diff --git a/drivers/gpu/drm/qxl/qxl_debugfs.c b/drivers/gpu/drm/qxl/qxl_debugfs.c
index 88123047fdd4..524d35b648d8 100644
--- a/drivers/gpu/drm/qxl/qxl_debugfs.c
+++ b/drivers/gpu/drm/qxl/qxl_debugfs.c
@@ -39,7 +39,7 @@ static int
qxl_debugfs_irq_received(struct seq_file *m, void *data)
{
struct drm_info_node *node = (struct drm_info_node *) m->private;
- struct qxl_device *qdev = node->minor->dev->dev_private;
+ struct qxl_device *qdev = to_qxl(node->minor->dev);
seq_printf(m, "%d\n", atomic_read(&qdev->irq_received));
seq_printf(m, "%d\n", atomic_read(&qdev->irq_received_display));
@@ -53,7 +53,7 @@ static int
qxl_debugfs_buffers_info(struct seq_file *m, void *data)
{
struct drm_info_node *node = (struct drm_info_node *) m->private;
- struct qxl_device *qdev = node->minor->dev->dev_private;
+ struct qxl_device *qdev = to_qxl(node->minor->dev);
struct qxl_bo *bo;
list_for_each_entry(bo, &qdev->gem.objects, list) {
@@ -83,8 +83,7 @@ void
qxl_debugfs_init(struct drm_minor *minor)
{
#if defined(CONFIG_DEBUG_FS)
- struct qxl_device *dev =
- (struct qxl_device *) minor->dev->dev_private;
+ struct qxl_device *dev = to_qxl(minor->dev);
drm_debugfs_create_files(qxl_debugfs_list, QXL_DEBUGFS_ENTRIES,
minor->debugfs_root, minor);
diff --git a/drivers/gpu/drm/qxl/qxl_display.c b/drivers/gpu/drm/qxl/qxl_display.c
index 09583a08e141..1082cd5d2fd4 100644
--- a/drivers/gpu/drm/qxl/qxl_display.c
+++ b/drivers/gpu/drm/qxl/qxl_display.c
@@ -221,7 +221,7 @@ static int qxl_add_mode(struct drm_connector *connector,
bool preferred)
{
struct drm_device *dev = connector->dev;
- struct qxl_device *qdev = dev->dev_private;
+ struct qxl_device *qdev = to_qxl(dev);
struct drm_display_mode *mode = NULL;
int rc;
@@ -242,7 +242,7 @@ static int qxl_add_mode(struct drm_connector *connector,
static int qxl_add_monitors_config_modes(struct drm_connector *connector)
{
struct drm_device *dev = connector->dev;
- struct qxl_device *qdev = dev->dev_private;
+ struct qxl_device *qdev = to_qxl(dev);
struct qxl_output *output = drm_connector_to_qxl_output(connector);
int h = output->index;
struct qxl_head *head;
@@ -310,7 +310,7 @@ static void qxl_crtc_update_monitors_config(struct drm_crtc *crtc,
const char *reason)
{
struct drm_device *dev = crtc->dev;
- struct qxl_device *qdev = dev->dev_private;
+ struct qxl_device *qdev = to_qxl(dev);
struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
struct qxl_head head;
int oldcount, i = qcrtc->index;
@@ -400,7 +400,7 @@ static int qxl_framebuffer_surface_dirty(struct drm_framebuffer *fb,
unsigned int num_clips)
{
/* TODO: vmwgfx where this was cribbed from had locking. Why? */
- struct qxl_device *qdev = fb->dev->dev_private;
+ struct qxl_device *qdev = to_qxl(fb->dev);
struct drm_clip_rect norect;
struct qxl_bo *qobj;
bool is_primary;
@@ -462,7 +462,7 @@ static const struct drm_crtc_helper_funcs qxl_crtc_helper_funcs = {
static int qxl_primary_atomic_check(struct drm_plane *plane,
struct drm_plane_state *state)
{
- struct qxl_device *qdev = plane->dev->dev_private;
+ struct qxl_device *qdev = to_qxl(plane->dev);
struct qxl_bo *bo;
if (!state->crtc || !state->fb)
@@ -476,7 +476,7 @@ static int qxl_primary_atomic_check(struct drm_plane *plane,
static int qxl_primary_apply_cursor(struct drm_plane *plane)
{
struct drm_device *dev = plane->dev;
- struct qxl_device *qdev = dev->dev_private;
+ struct qxl_device *qdev = to_qxl(dev);
struct drm_framebuffer *fb = plane->state->fb;
struct qxl_crtc *qcrtc = to_qxl_crtc(plane->state->crtc);
struct qxl_cursor_cmd *cmd;
@@ -523,7 +523,7 @@ static int qxl_primary_apply_cursor(struct drm_plane *plane)
static void qxl_primary_atomic_update(struct drm_plane *plane,
struct drm_plane_state *old_state)
{
- struct qxl_device *qdev = plane->dev->dev_private;
+ struct qxl_device *qdev = to_qxl(plane->dev);
struct qxl_bo *bo = gem_to_qxl_bo(plane->state->fb->obj[0]);
struct qxl_bo *primary;
struct drm_clip_rect norect = {
@@ -554,7 +554,7 @@ static void qxl_primary_atomic_update(struct drm_plane *plane,
static void qxl_primary_atomic_disable(struct drm_plane *plane,
struct drm_plane_state *old_state)
{
- struct qxl_device *qdev = plane->dev->dev_private;
+ struct qxl_device *qdev = to_qxl(plane->dev);
if (old_state->fb) {
struct qxl_bo *bo = gem_to_qxl_bo(old_state->fb->obj[0]);
@@ -570,7 +570,7 @@ static void qxl_cursor_atomic_update(struct drm_plane *plane,
struct drm_plane_state *old_state)
{
struct drm_device *dev = plane->dev;
- struct qxl_device *qdev = dev->dev_private;
+ struct qxl_device *qdev = to_qxl(dev);
struct drm_framebuffer *fb = plane->state->fb;
struct qxl_crtc *qcrtc = to_qxl_crtc(plane->state->crtc);
struct qxl_release *release;
@@ -679,7 +679,7 @@ static void qxl_cursor_atomic_update(struct drm_plane *plane,
static void qxl_cursor_atomic_disable(struct drm_plane *plane,
struct drm_plane_state *old_state)
{
- struct qxl_device *qdev = plane->dev->dev_private;
+ struct qxl_device *qdev = to_qxl(plane->dev);
struct qxl_release *release;
struct qxl_cursor_cmd *cmd;
int ret;
@@ -762,7 +762,7 @@ static void qxl_calc_dumb_shadow(struct qxl_device *qdev,
static int qxl_plane_prepare_fb(struct drm_plane *plane,
struct drm_plane_state *new_state)
{
- struct qxl_device *qdev = plane->dev->dev_private;
+ struct qxl_device *qdev = to_qxl(plane->dev);
struct drm_gem_object *obj;
struct qxl_bo *user_bo;
struct qxl_surface surf;
@@ -923,7 +923,7 @@ static int qdev_crtc_init(struct drm_device *dev, int crtc_id)
{
struct qxl_crtc *qxl_crtc;
struct drm_plane *primary, *cursor;
- struct qxl_device *qdev = dev->dev_private;
+ struct qxl_device *qdev = to_qxl(dev);
int r;
qxl_crtc = kzalloc(sizeof(struct qxl_crtc), GFP_KERNEL);
@@ -965,7 +965,7 @@ static int qdev_crtc_init(struct drm_device *dev, int crtc_id)
static int qxl_conn_get_modes(struct drm_connector *connector)
{
struct drm_device *dev = connector->dev;
- struct qxl_device *qdev = dev->dev_private;
+ struct qxl_device *qdev = to_qxl(dev);
struct qxl_output *output = drm_connector_to_qxl_output(connector);
unsigned int pwidth = 1024;
unsigned int pheight = 768;
@@ -991,7 +991,7 @@ static enum drm_mode_status qxl_conn_mode_valid(struct drm_connector *connector,
struct drm_display_mode *mode)
{
struct drm_device *ddev = connector->dev;
- struct qxl_device *qdev = ddev->dev_private;
+ struct qxl_device *qdev = to_qxl(ddev);
if (qxl_check_mode(qdev, mode->hdisplay, mode->vdisplay) != 0)
return MODE_BAD;
@@ -1021,7 +1021,7 @@ static enum drm_connector_status qxl_conn_detect(
struct qxl_output *output =
drm_connector_to_qxl_output(connector);
struct drm_device *ddev = connector->dev;
- struct qxl_device *qdev = ddev->dev_private;
+ struct qxl_device *qdev = to_qxl(ddev);
bool connected = false;
/* The first monitor is always connected */
@@ -1071,7 +1071,7 @@ static int qxl_mode_create_hotplug_mode_update_property(struct qxl_device *qdev)
static int qdev_output_init(struct drm_device *dev, int num_output)
{
- struct qxl_device *qdev = dev->dev_private;
+ struct qxl_device *qdev = to_qxl(dev);
struct qxl_output *qxl_output;
struct drm_connector *connector;
struct drm_encoder *encoder;
diff --git a/drivers/gpu/drm/qxl/qxl_drv.c b/drivers/gpu/drm/qxl/qxl_drv.c
index 6b4ae4c5fb76..13872b882775 100644
--- a/drivers/gpu/drm/qxl/qxl_drv.c
+++ b/drivers/gpu/drm/qxl/qxl_drv.c
@@ -137,7 +137,7 @@ qxl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
static void qxl_drm_release(struct drm_device *dev)
{
- struct qxl_device *qdev = dev->dev_private;
+ struct qxl_device *qdev = to_qxl(dev);
/*
* TODO: qxl_device_fini() call should be in qxl_pci_remove(),
@@ -164,7 +164,7 @@ DEFINE_DRM_GEM_FOPS(qxl_fops);
static int qxl_drm_freeze(struct drm_device *dev)
{
struct pci_dev *pdev = dev->pdev;
- struct qxl_device *qdev = dev->dev_private;
+ struct qxl_device *qdev = to_qxl(dev);
int ret;
ret = drm_mode_config_helper_suspend(dev);
@@ -186,7 +186,7 @@ static int qxl_drm_freeze(struct drm_device *dev)
static int qxl_drm_resume(struct drm_device *dev, bool thaw)
{
- struct qxl_device *qdev = dev->dev_private;
+ struct qxl_device *qdev = to_qxl(dev);
qdev->ram_header->int_mask = QXL_INTERRUPT_MASK;
if (!thaw) {
@@ -245,7 +245,7 @@ static int qxl_pm_restore(struct device *dev)
{
struct pci_dev *pdev = to_pci_dev(dev);
struct drm_device *drm_dev = pci_get_drvdata(pdev);
- struct qxl_device *qdev = drm_dev->dev_private;
+ struct qxl_device *qdev = to_qxl(drm_dev);
qxl_io_reset(qdev);
return qxl_drm_resume(drm_dev, false);
diff --git a/drivers/gpu/drm/qxl/qxl_drv.h b/drivers/gpu/drm/qxl/qxl_drv.h
index 86ac191d9205..31e35f787df2 100644
--- a/drivers/gpu/drm/qxl/qxl_drv.h
+++ b/drivers/gpu/drm/qxl/qxl_drv.h
@@ -192,8 +192,6 @@ struct qxl_debugfs {
int qxl_debugfs_fence_init(struct qxl_device *rdev);
-struct qxl_device;
-
struct qxl_device {
struct drm_device ddev;
@@ -273,6 +271,8 @@ struct qxl_device {
int monitors_config_height;
};
+#define to_qxl(dev) container_of(dev, struct qxl_device, ddev)
+
extern const struct drm_ioctl_desc qxl_ioctls[];
extern int qxl_max_ioctl;
diff --git a/drivers/gpu/drm/qxl/qxl_dumb.c b/drivers/gpu/drm/qxl/qxl_dumb.c
index 272d19b677d8..24e903383aa1 100644
--- a/drivers/gpu/drm/qxl/qxl_dumb.c
+++ b/drivers/gpu/drm/qxl/qxl_dumb.c
@@ -32,7 +32,7 @@ int qxl_mode_dumb_create(struct drm_file *file_priv,
struct drm_device *dev,
struct drm_mode_create_dumb *args)
{
- struct qxl_device *qdev = dev->dev_private;
+ struct qxl_device *qdev = to_qxl(dev);
struct qxl_bo *qobj;
uint32_t handle;
int r;
diff --git a/drivers/gpu/drm/qxl/qxl_gem.c b/drivers/gpu/drm/qxl/qxl_gem.c
index 69f37db1027a..5ff6fa9b799c 100644
--- a/drivers/gpu/drm/qxl/qxl_gem.c
+++ b/drivers/gpu/drm/qxl/qxl_gem.c
@@ -34,7 +34,7 @@ void qxl_gem_object_free(struct drm_gem_object *gobj)
struct qxl_device *qdev;
struct ttm_buffer_object *tbo;
- qdev = (struct qxl_device *)gobj->dev->dev_private;
+ qdev = to_qxl(gobj->dev);
qxl_surface_evict(qdev, qobj, false);
diff --git a/drivers/gpu/drm/qxl/qxl_ioctl.c b/drivers/gpu/drm/qxl/qxl_ioctl.c
index 8117a45b3610..d9a583966949 100644
--- a/drivers/gpu/drm/qxl/qxl_ioctl.c
+++ b/drivers/gpu/drm/qxl/qxl_ioctl.c
@@ -36,7 +36,7 @@
static int qxl_alloc_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
- struct qxl_device *qdev = dev->dev_private;
+ struct qxl_device *qdev = to_qxl(dev);
struct drm_qxl_alloc *qxl_alloc = data;
int ret;
struct qxl_bo *qobj;
@@ -64,7 +64,7 @@ static int qxl_alloc_ioctl(struct drm_device *dev, void *data,
static int qxl_map_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
- struct qxl_device *qdev = dev->dev_private;
+ struct qxl_device *qdev = to_qxl(dev);
struct drm_qxl_map *qxl_map = data;
return qxl_mode_dumb_mmap(file_priv, &qdev->ddev, qxl_map->handle,
@@ -279,7 +279,7 @@ static int qxl_process_single_command(struct qxl_device *qdev,
static int qxl_execbuffer_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
- struct qxl_device *qdev = dev->dev_private;
+ struct qxl_device *qdev = to_qxl(dev);
struct drm_qxl_execbuffer *execbuffer = data;
struct drm_qxl_command user_cmd;
int cmd_num;
@@ -304,7 +304,7 @@ static int qxl_execbuffer_ioctl(struct drm_device *dev, void *data,
static int qxl_update_area_ioctl(struct drm_device *dev, void *data,
struct drm_file *file)
{
- struct qxl_device *qdev = dev->dev_private;
+ struct qxl_device *qdev = to_qxl(dev);
struct drm_qxl_update_area *update_area = data;
struct qxl_rect area = {.left = update_area->left,
.top = update_area->top,
@@ -354,7 +354,7 @@ static int qxl_update_area_ioctl(struct drm_device *dev, void *data,
static int qxl_getparam_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
- struct qxl_device *qdev = dev->dev_private;
+ struct qxl_device *qdev = to_qxl(dev);
struct drm_qxl_getparam *param = data;
switch (param->param) {
@@ -373,7 +373,7 @@ static int qxl_getparam_ioctl(struct drm_device *dev, void *data,
static int qxl_clientcap_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
- struct qxl_device *qdev = dev->dev_private;
+ struct qxl_device *qdev = to_qxl(dev);
struct drm_qxl_clientcap *param = data;
int byte, idx;
@@ -394,7 +394,7 @@ static int qxl_clientcap_ioctl(struct drm_device *dev, void *data,
static int qxl_alloc_surf_ioctl(struct drm_device *dev, void *data,
struct drm_file *file)
{
- struct qxl_device *qdev = dev->dev_private;
+ struct qxl_device *qdev = to_qxl(dev);
struct drm_qxl_alloc_surf *param = data;
struct qxl_bo *qobj;
int handle;
diff --git a/drivers/gpu/drm/qxl/qxl_irq.c b/drivers/gpu/drm/qxl/qxl_irq.c
index 8435af108632..1ba5a702d763 100644
--- a/drivers/gpu/drm/qxl/qxl_irq.c
+++ b/drivers/gpu/drm/qxl/qxl_irq.c
@@ -32,7 +32,7 @@
irqreturn_t qxl_irq_handler(int irq, void *arg)
{
struct drm_device *dev = (struct drm_device *) arg;
- struct qxl_device *qdev = (struct qxl_device *)dev->dev_private;
+ struct qxl_device *qdev = to_qxl(dev);
uint32_t pending;
pending = xchg(&qdev->ram_header->int_pending, 0);
diff --git a/drivers/gpu/drm/qxl/qxl_kms.c b/drivers/gpu/drm/qxl/qxl_kms.c
index 91a34dd835d7..a6d873052cd4 100644
--- a/drivers/gpu/drm/qxl/qxl_kms.c
+++ b/drivers/gpu/drm/qxl/qxl_kms.c
@@ -114,7 +114,6 @@ int qxl_device_init(struct qxl_device *qdev,
qdev->ddev.pdev = pdev;
pci_set_drvdata(pdev, &qdev->ddev);
- qdev->ddev.dev_private = qdev;
mutex_init(&qdev->gem.mutex);
mutex_init(&qdev->update_area_mutex);
diff --git a/drivers/gpu/drm/qxl/qxl_object.c b/drivers/gpu/drm/qxl/qxl_object.c
index ab72dc3476e9..edc8a9916872 100644
--- a/drivers/gpu/drm/qxl/qxl_object.c
+++ b/drivers/gpu/drm/qxl/qxl_object.c
@@ -33,7 +33,7 @@ static void qxl_ttm_bo_destroy(struct ttm_buffer_object *tbo)
struct qxl_device *qdev;
bo = to_qxl_bo(tbo);
- qdev = (struct qxl_device *)bo->tbo.base.dev->dev_private;
+ qdev = to_qxl(bo->tbo.base.dev);
qxl_surface_evict(qdev, bo, false);
WARN_ON_ONCE(bo->map_count > 0);
diff --git a/drivers/gpu/drm/qxl/qxl_release.c b/drivers/gpu/drm/qxl/qxl_release.c
index 2feca734c7b1..4fae3e393da1 100644
--- a/drivers/gpu/drm/qxl/qxl_release.c
+++ b/drivers/gpu/drm/qxl/qxl_release.c
@@ -243,7 +243,7 @@ static int qxl_release_validate_bo(struct qxl_bo *bo)
return ret;
/* allocate a surface for reserved + validated buffers */
- ret = qxl_bo_check_id(bo->tbo.base.dev->dev_private, bo);
+ ret = qxl_bo_check_id(to_qxl(bo->tbo.base.dev), bo);
if (ret)
return ret;
return 0;
diff --git a/drivers/gpu/drm/qxl/qxl_ttm.c b/drivers/gpu/drm/qxl/qxl_ttm.c
index 93a2eb14844b..f09a712b1ed2 100644
--- a/drivers/gpu/drm/qxl/qxl_ttm.c
+++ b/drivers/gpu/drm/qxl/qxl_ttm.c
@@ -243,7 +243,7 @@ static void qxl_bo_move_notify(struct ttm_buffer_object *bo,
if (!qxl_ttm_bo_is_qxl_bo(bo))
return;
qbo = to_qxl_bo(bo);
- qdev = qbo->tbo.base.dev->dev_private;
+ qdev = to_qxl(qbo->tbo.base.dev);
if (bo->mem.mem_type == TTM_PL_PRIV && qbo->surface_id)
qxl_surface_evict(qdev, qbo, new_mem ? true : false);
--
2.25.1
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [Intel-gfx] [PATCH 31/44] drm/qxl: Don't use drm_device->dev_private
@ 2020-04-03 13:58 ` Daniel Vetter
0 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:58 UTC (permalink / raw)
To: DRI Development
Cc: spice-devel, Daniel Vetter, Intel Graphics Development,
virtualization, Gerd Hoffmann, Daniel Vetter, Dave Airlie
Upcasting using a container_of macro is more typesafe, faster and
easier for the compiler to optimize.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Dave Airlie <airlied@redhat.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: virtualization@lists.linux-foundation.org
Cc: spice-devel@lists.freedesktop.org
---
drivers/gpu/drm/qxl/qxl_debugfs.c | 7 +++----
drivers/gpu/drm/qxl/qxl_display.c | 32 +++++++++++++++----------------
drivers/gpu/drm/qxl/qxl_drv.c | 8 ++++----
drivers/gpu/drm/qxl/qxl_drv.h | 4 ++--
drivers/gpu/drm/qxl/qxl_dumb.c | 2 +-
drivers/gpu/drm/qxl/qxl_gem.c | 2 +-
drivers/gpu/drm/qxl/qxl_ioctl.c | 14 +++++++-------
drivers/gpu/drm/qxl/qxl_irq.c | 2 +-
drivers/gpu/drm/qxl/qxl_kms.c | 1 -
drivers/gpu/drm/qxl/qxl_object.c | 2 +-
drivers/gpu/drm/qxl/qxl_release.c | 2 +-
drivers/gpu/drm/qxl/qxl_ttm.c | 2 +-
12 files changed, 38 insertions(+), 40 deletions(-)
diff --git a/drivers/gpu/drm/qxl/qxl_debugfs.c b/drivers/gpu/drm/qxl/qxl_debugfs.c
index 88123047fdd4..524d35b648d8 100644
--- a/drivers/gpu/drm/qxl/qxl_debugfs.c
+++ b/drivers/gpu/drm/qxl/qxl_debugfs.c
@@ -39,7 +39,7 @@ static int
qxl_debugfs_irq_received(struct seq_file *m, void *data)
{
struct drm_info_node *node = (struct drm_info_node *) m->private;
- struct qxl_device *qdev = node->minor->dev->dev_private;
+ struct qxl_device *qdev = to_qxl(node->minor->dev);
seq_printf(m, "%d\n", atomic_read(&qdev->irq_received));
seq_printf(m, "%d\n", atomic_read(&qdev->irq_received_display));
@@ -53,7 +53,7 @@ static int
qxl_debugfs_buffers_info(struct seq_file *m, void *data)
{
struct drm_info_node *node = (struct drm_info_node *) m->private;
- struct qxl_device *qdev = node->minor->dev->dev_private;
+ struct qxl_device *qdev = to_qxl(node->minor->dev);
struct qxl_bo *bo;
list_for_each_entry(bo, &qdev->gem.objects, list) {
@@ -83,8 +83,7 @@ void
qxl_debugfs_init(struct drm_minor *minor)
{
#if defined(CONFIG_DEBUG_FS)
- struct qxl_device *dev =
- (struct qxl_device *) minor->dev->dev_private;
+ struct qxl_device *dev = to_qxl(minor->dev);
drm_debugfs_create_files(qxl_debugfs_list, QXL_DEBUGFS_ENTRIES,
minor->debugfs_root, minor);
diff --git a/drivers/gpu/drm/qxl/qxl_display.c b/drivers/gpu/drm/qxl/qxl_display.c
index 09583a08e141..1082cd5d2fd4 100644
--- a/drivers/gpu/drm/qxl/qxl_display.c
+++ b/drivers/gpu/drm/qxl/qxl_display.c
@@ -221,7 +221,7 @@ static int qxl_add_mode(struct drm_connector *connector,
bool preferred)
{
struct drm_device *dev = connector->dev;
- struct qxl_device *qdev = dev->dev_private;
+ struct qxl_device *qdev = to_qxl(dev);
struct drm_display_mode *mode = NULL;
int rc;
@@ -242,7 +242,7 @@ static int qxl_add_mode(struct drm_connector *connector,
static int qxl_add_monitors_config_modes(struct drm_connector *connector)
{
struct drm_device *dev = connector->dev;
- struct qxl_device *qdev = dev->dev_private;
+ struct qxl_device *qdev = to_qxl(dev);
struct qxl_output *output = drm_connector_to_qxl_output(connector);
int h = output->index;
struct qxl_head *head;
@@ -310,7 +310,7 @@ static void qxl_crtc_update_monitors_config(struct drm_crtc *crtc,
const char *reason)
{
struct drm_device *dev = crtc->dev;
- struct qxl_device *qdev = dev->dev_private;
+ struct qxl_device *qdev = to_qxl(dev);
struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
struct qxl_head head;
int oldcount, i = qcrtc->index;
@@ -400,7 +400,7 @@ static int qxl_framebuffer_surface_dirty(struct drm_framebuffer *fb,
unsigned int num_clips)
{
/* TODO: vmwgfx where this was cribbed from had locking. Why? */
- struct qxl_device *qdev = fb->dev->dev_private;
+ struct qxl_device *qdev = to_qxl(fb->dev);
struct drm_clip_rect norect;
struct qxl_bo *qobj;
bool is_primary;
@@ -462,7 +462,7 @@ static const struct drm_crtc_helper_funcs qxl_crtc_helper_funcs = {
static int qxl_primary_atomic_check(struct drm_plane *plane,
struct drm_plane_state *state)
{
- struct qxl_device *qdev = plane->dev->dev_private;
+ struct qxl_device *qdev = to_qxl(plane->dev);
struct qxl_bo *bo;
if (!state->crtc || !state->fb)
@@ -476,7 +476,7 @@ static int qxl_primary_atomic_check(struct drm_plane *plane,
static int qxl_primary_apply_cursor(struct drm_plane *plane)
{
struct drm_device *dev = plane->dev;
- struct qxl_device *qdev = dev->dev_private;
+ struct qxl_device *qdev = to_qxl(dev);
struct drm_framebuffer *fb = plane->state->fb;
struct qxl_crtc *qcrtc = to_qxl_crtc(plane->state->crtc);
struct qxl_cursor_cmd *cmd;
@@ -523,7 +523,7 @@ static int qxl_primary_apply_cursor(struct drm_plane *plane)
static void qxl_primary_atomic_update(struct drm_plane *plane,
struct drm_plane_state *old_state)
{
- struct qxl_device *qdev = plane->dev->dev_private;
+ struct qxl_device *qdev = to_qxl(plane->dev);
struct qxl_bo *bo = gem_to_qxl_bo(plane->state->fb->obj[0]);
struct qxl_bo *primary;
struct drm_clip_rect norect = {
@@ -554,7 +554,7 @@ static void qxl_primary_atomic_update(struct drm_plane *plane,
static void qxl_primary_atomic_disable(struct drm_plane *plane,
struct drm_plane_state *old_state)
{
- struct qxl_device *qdev = plane->dev->dev_private;
+ struct qxl_device *qdev = to_qxl(plane->dev);
if (old_state->fb) {
struct qxl_bo *bo = gem_to_qxl_bo(old_state->fb->obj[0]);
@@ -570,7 +570,7 @@ static void qxl_cursor_atomic_update(struct drm_plane *plane,
struct drm_plane_state *old_state)
{
struct drm_device *dev = plane->dev;
- struct qxl_device *qdev = dev->dev_private;
+ struct qxl_device *qdev = to_qxl(dev);
struct drm_framebuffer *fb = plane->state->fb;
struct qxl_crtc *qcrtc = to_qxl_crtc(plane->state->crtc);
struct qxl_release *release;
@@ -679,7 +679,7 @@ static void qxl_cursor_atomic_update(struct drm_plane *plane,
static void qxl_cursor_atomic_disable(struct drm_plane *plane,
struct drm_plane_state *old_state)
{
- struct qxl_device *qdev = plane->dev->dev_private;
+ struct qxl_device *qdev = to_qxl(plane->dev);
struct qxl_release *release;
struct qxl_cursor_cmd *cmd;
int ret;
@@ -762,7 +762,7 @@ static void qxl_calc_dumb_shadow(struct qxl_device *qdev,
static int qxl_plane_prepare_fb(struct drm_plane *plane,
struct drm_plane_state *new_state)
{
- struct qxl_device *qdev = plane->dev->dev_private;
+ struct qxl_device *qdev = to_qxl(plane->dev);
struct drm_gem_object *obj;
struct qxl_bo *user_bo;
struct qxl_surface surf;
@@ -923,7 +923,7 @@ static int qdev_crtc_init(struct drm_device *dev, int crtc_id)
{
struct qxl_crtc *qxl_crtc;
struct drm_plane *primary, *cursor;
- struct qxl_device *qdev = dev->dev_private;
+ struct qxl_device *qdev = to_qxl(dev);
int r;
qxl_crtc = kzalloc(sizeof(struct qxl_crtc), GFP_KERNEL);
@@ -965,7 +965,7 @@ static int qdev_crtc_init(struct drm_device *dev, int crtc_id)
static int qxl_conn_get_modes(struct drm_connector *connector)
{
struct drm_device *dev = connector->dev;
- struct qxl_device *qdev = dev->dev_private;
+ struct qxl_device *qdev = to_qxl(dev);
struct qxl_output *output = drm_connector_to_qxl_output(connector);
unsigned int pwidth = 1024;
unsigned int pheight = 768;
@@ -991,7 +991,7 @@ static enum drm_mode_status qxl_conn_mode_valid(struct drm_connector *connector,
struct drm_display_mode *mode)
{
struct drm_device *ddev = connector->dev;
- struct qxl_device *qdev = ddev->dev_private;
+ struct qxl_device *qdev = to_qxl(ddev);
if (qxl_check_mode(qdev, mode->hdisplay, mode->vdisplay) != 0)
return MODE_BAD;
@@ -1021,7 +1021,7 @@ static enum drm_connector_status qxl_conn_detect(
struct qxl_output *output =
drm_connector_to_qxl_output(connector);
struct drm_device *ddev = connector->dev;
- struct qxl_device *qdev = ddev->dev_private;
+ struct qxl_device *qdev = to_qxl(ddev);
bool connected = false;
/* The first monitor is always connected */
@@ -1071,7 +1071,7 @@ static int qxl_mode_create_hotplug_mode_update_property(struct qxl_device *qdev)
static int qdev_output_init(struct drm_device *dev, int num_output)
{
- struct qxl_device *qdev = dev->dev_private;
+ struct qxl_device *qdev = to_qxl(dev);
struct qxl_output *qxl_output;
struct drm_connector *connector;
struct drm_encoder *encoder;
diff --git a/drivers/gpu/drm/qxl/qxl_drv.c b/drivers/gpu/drm/qxl/qxl_drv.c
index 6b4ae4c5fb76..13872b882775 100644
--- a/drivers/gpu/drm/qxl/qxl_drv.c
+++ b/drivers/gpu/drm/qxl/qxl_drv.c
@@ -137,7 +137,7 @@ qxl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
static void qxl_drm_release(struct drm_device *dev)
{
- struct qxl_device *qdev = dev->dev_private;
+ struct qxl_device *qdev = to_qxl(dev);
/*
* TODO: qxl_device_fini() call should be in qxl_pci_remove(),
@@ -164,7 +164,7 @@ DEFINE_DRM_GEM_FOPS(qxl_fops);
static int qxl_drm_freeze(struct drm_device *dev)
{
struct pci_dev *pdev = dev->pdev;
- struct qxl_device *qdev = dev->dev_private;
+ struct qxl_device *qdev = to_qxl(dev);
int ret;
ret = drm_mode_config_helper_suspend(dev);
@@ -186,7 +186,7 @@ static int qxl_drm_freeze(struct drm_device *dev)
static int qxl_drm_resume(struct drm_device *dev, bool thaw)
{
- struct qxl_device *qdev = dev->dev_private;
+ struct qxl_device *qdev = to_qxl(dev);
qdev->ram_header->int_mask = QXL_INTERRUPT_MASK;
if (!thaw) {
@@ -245,7 +245,7 @@ static int qxl_pm_restore(struct device *dev)
{
struct pci_dev *pdev = to_pci_dev(dev);
struct drm_device *drm_dev = pci_get_drvdata(pdev);
- struct qxl_device *qdev = drm_dev->dev_private;
+ struct qxl_device *qdev = to_qxl(drm_dev);
qxl_io_reset(qdev);
return qxl_drm_resume(drm_dev, false);
diff --git a/drivers/gpu/drm/qxl/qxl_drv.h b/drivers/gpu/drm/qxl/qxl_drv.h
index 86ac191d9205..31e35f787df2 100644
--- a/drivers/gpu/drm/qxl/qxl_drv.h
+++ b/drivers/gpu/drm/qxl/qxl_drv.h
@@ -192,8 +192,6 @@ struct qxl_debugfs {
int qxl_debugfs_fence_init(struct qxl_device *rdev);
-struct qxl_device;
-
struct qxl_device {
struct drm_device ddev;
@@ -273,6 +271,8 @@ struct qxl_device {
int monitors_config_height;
};
+#define to_qxl(dev) container_of(dev, struct qxl_device, ddev)
+
extern const struct drm_ioctl_desc qxl_ioctls[];
extern int qxl_max_ioctl;
diff --git a/drivers/gpu/drm/qxl/qxl_dumb.c b/drivers/gpu/drm/qxl/qxl_dumb.c
index 272d19b677d8..24e903383aa1 100644
--- a/drivers/gpu/drm/qxl/qxl_dumb.c
+++ b/drivers/gpu/drm/qxl/qxl_dumb.c
@@ -32,7 +32,7 @@ int qxl_mode_dumb_create(struct drm_file *file_priv,
struct drm_device *dev,
struct drm_mode_create_dumb *args)
{
- struct qxl_device *qdev = dev->dev_private;
+ struct qxl_device *qdev = to_qxl(dev);
struct qxl_bo *qobj;
uint32_t handle;
int r;
diff --git a/drivers/gpu/drm/qxl/qxl_gem.c b/drivers/gpu/drm/qxl/qxl_gem.c
index 69f37db1027a..5ff6fa9b799c 100644
--- a/drivers/gpu/drm/qxl/qxl_gem.c
+++ b/drivers/gpu/drm/qxl/qxl_gem.c
@@ -34,7 +34,7 @@ void qxl_gem_object_free(struct drm_gem_object *gobj)
struct qxl_device *qdev;
struct ttm_buffer_object *tbo;
- qdev = (struct qxl_device *)gobj->dev->dev_private;
+ qdev = to_qxl(gobj->dev);
qxl_surface_evict(qdev, qobj, false);
diff --git a/drivers/gpu/drm/qxl/qxl_ioctl.c b/drivers/gpu/drm/qxl/qxl_ioctl.c
index 8117a45b3610..d9a583966949 100644
--- a/drivers/gpu/drm/qxl/qxl_ioctl.c
+++ b/drivers/gpu/drm/qxl/qxl_ioctl.c
@@ -36,7 +36,7 @@
static int qxl_alloc_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
- struct qxl_device *qdev = dev->dev_private;
+ struct qxl_device *qdev = to_qxl(dev);
struct drm_qxl_alloc *qxl_alloc = data;
int ret;
struct qxl_bo *qobj;
@@ -64,7 +64,7 @@ static int qxl_alloc_ioctl(struct drm_device *dev, void *data,
static int qxl_map_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
- struct qxl_device *qdev = dev->dev_private;
+ struct qxl_device *qdev = to_qxl(dev);
struct drm_qxl_map *qxl_map = data;
return qxl_mode_dumb_mmap(file_priv, &qdev->ddev, qxl_map->handle,
@@ -279,7 +279,7 @@ static int qxl_process_single_command(struct qxl_device *qdev,
static int qxl_execbuffer_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
- struct qxl_device *qdev = dev->dev_private;
+ struct qxl_device *qdev = to_qxl(dev);
struct drm_qxl_execbuffer *execbuffer = data;
struct drm_qxl_command user_cmd;
int cmd_num;
@@ -304,7 +304,7 @@ static int qxl_execbuffer_ioctl(struct drm_device *dev, void *data,
static int qxl_update_area_ioctl(struct drm_device *dev, void *data,
struct drm_file *file)
{
- struct qxl_device *qdev = dev->dev_private;
+ struct qxl_device *qdev = to_qxl(dev);
struct drm_qxl_update_area *update_area = data;
struct qxl_rect area = {.left = update_area->left,
.top = update_area->top,
@@ -354,7 +354,7 @@ static int qxl_update_area_ioctl(struct drm_device *dev, void *data,
static int qxl_getparam_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
- struct qxl_device *qdev = dev->dev_private;
+ struct qxl_device *qdev = to_qxl(dev);
struct drm_qxl_getparam *param = data;
switch (param->param) {
@@ -373,7 +373,7 @@ static int qxl_getparam_ioctl(struct drm_device *dev, void *data,
static int qxl_clientcap_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
- struct qxl_device *qdev = dev->dev_private;
+ struct qxl_device *qdev = to_qxl(dev);
struct drm_qxl_clientcap *param = data;
int byte, idx;
@@ -394,7 +394,7 @@ static int qxl_clientcap_ioctl(struct drm_device *dev, void *data,
static int qxl_alloc_surf_ioctl(struct drm_device *dev, void *data,
struct drm_file *file)
{
- struct qxl_device *qdev = dev->dev_private;
+ struct qxl_device *qdev = to_qxl(dev);
struct drm_qxl_alloc_surf *param = data;
struct qxl_bo *qobj;
int handle;
diff --git a/drivers/gpu/drm/qxl/qxl_irq.c b/drivers/gpu/drm/qxl/qxl_irq.c
index 8435af108632..1ba5a702d763 100644
--- a/drivers/gpu/drm/qxl/qxl_irq.c
+++ b/drivers/gpu/drm/qxl/qxl_irq.c
@@ -32,7 +32,7 @@
irqreturn_t qxl_irq_handler(int irq, void *arg)
{
struct drm_device *dev = (struct drm_device *) arg;
- struct qxl_device *qdev = (struct qxl_device *)dev->dev_private;
+ struct qxl_device *qdev = to_qxl(dev);
uint32_t pending;
pending = xchg(&qdev->ram_header->int_pending, 0);
diff --git a/drivers/gpu/drm/qxl/qxl_kms.c b/drivers/gpu/drm/qxl/qxl_kms.c
index 91a34dd835d7..a6d873052cd4 100644
--- a/drivers/gpu/drm/qxl/qxl_kms.c
+++ b/drivers/gpu/drm/qxl/qxl_kms.c
@@ -114,7 +114,6 @@ int qxl_device_init(struct qxl_device *qdev,
qdev->ddev.pdev = pdev;
pci_set_drvdata(pdev, &qdev->ddev);
- qdev->ddev.dev_private = qdev;
mutex_init(&qdev->gem.mutex);
mutex_init(&qdev->update_area_mutex);
diff --git a/drivers/gpu/drm/qxl/qxl_object.c b/drivers/gpu/drm/qxl/qxl_object.c
index ab72dc3476e9..edc8a9916872 100644
--- a/drivers/gpu/drm/qxl/qxl_object.c
+++ b/drivers/gpu/drm/qxl/qxl_object.c
@@ -33,7 +33,7 @@ static void qxl_ttm_bo_destroy(struct ttm_buffer_object *tbo)
struct qxl_device *qdev;
bo = to_qxl_bo(tbo);
- qdev = (struct qxl_device *)bo->tbo.base.dev->dev_private;
+ qdev = to_qxl(bo->tbo.base.dev);
qxl_surface_evict(qdev, bo, false);
WARN_ON_ONCE(bo->map_count > 0);
diff --git a/drivers/gpu/drm/qxl/qxl_release.c b/drivers/gpu/drm/qxl/qxl_release.c
index 2feca734c7b1..4fae3e393da1 100644
--- a/drivers/gpu/drm/qxl/qxl_release.c
+++ b/drivers/gpu/drm/qxl/qxl_release.c
@@ -243,7 +243,7 @@ static int qxl_release_validate_bo(struct qxl_bo *bo)
return ret;
/* allocate a surface for reserved + validated buffers */
- ret = qxl_bo_check_id(bo->tbo.base.dev->dev_private, bo);
+ ret = qxl_bo_check_id(to_qxl(bo->tbo.base.dev), bo);
if (ret)
return ret;
return 0;
diff --git a/drivers/gpu/drm/qxl/qxl_ttm.c b/drivers/gpu/drm/qxl/qxl_ttm.c
index 93a2eb14844b..f09a712b1ed2 100644
--- a/drivers/gpu/drm/qxl/qxl_ttm.c
+++ b/drivers/gpu/drm/qxl/qxl_ttm.c
@@ -243,7 +243,7 @@ static void qxl_bo_move_notify(struct ttm_buffer_object *bo,
if (!qxl_ttm_bo_is_qxl_bo(bo))
return;
qbo = to_qxl_bo(bo);
- qdev = qbo->tbo.base.dev->dev_private;
+ qdev = to_qxl(qbo->tbo.base.dev);
if (bo->mem.mem_type == TTM_PL_PRIV && qbo->surface_id)
qxl_surface_evict(qdev, qbo, new_mem ? true : false);
--
2.25.1
_______________________________________________
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Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [PATCH 32/44] drm/mcde: Use devm_drm_dev_alloc
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-03 13:58 ` Daniel Vetter
-1 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:58 UTC (permalink / raw)
To: DRI Development; +Cc: Daniel Vetter, Intel Graphics Development, Daniel Vetter
Already using devm_drm_dev_init, so very simple replacment.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
---
drivers/gpu/drm/mcde/mcde_drv.c | 16 ++++------------
1 file changed, 4 insertions(+), 12 deletions(-)
diff --git a/drivers/gpu/drm/mcde/mcde_drv.c b/drivers/gpu/drm/mcde/mcde_drv.c
index 88cc6b4a7a64..bdb525e3c5d7 100644
--- a/drivers/gpu/drm/mcde/mcde_drv.c
+++ b/drivers/gpu/drm/mcde/mcde_drv.c
@@ -307,24 +307,16 @@ static int mcde_probe(struct platform_device *pdev)
int ret;
int i;
- mcde = kzalloc(sizeof(*mcde), GFP_KERNEL);
- if (!mcde)
- return -ENOMEM;
- mcde->dev = dev;
-
- ret = devm_drm_dev_init(dev, &mcde->drm, &mcde_drm_driver);
- if (ret) {
- kfree(mcde);
- return ret;
- }
+ mcde = devm_drm_dev_alloc(dev, &mcde_drm_driver, struct mcde, drm);
+ if (IS_ERR(mcde))
+ return PTR_ERR(mcde);
drm = &mcde->drm;
drm->dev_private = mcde;
- drmm_add_final_kfree(drm, mcde);
+ mcde->dev = dev;
platform_set_drvdata(pdev, drm);
/* Enable continuous updates: this is what Linux' framebuffer expects */
mcde->oneshot_mode = false;
- drm->dev_private = mcde;
/* First obtain and turn on the main power */
mcde->epod = devm_regulator_get(dev, "epod");
--
2.25.1
_______________________________________________
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dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [Intel-gfx] [PATCH 32/44] drm/mcde: Use devm_drm_dev_alloc
@ 2020-04-03 13:58 ` Daniel Vetter
0 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:58 UTC (permalink / raw)
To: DRI Development
Cc: Daniel Vetter, Intel Graphics Development, Linus Walleij, Daniel Vetter
Already using devm_drm_dev_init, so very simple replacment.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
---
drivers/gpu/drm/mcde/mcde_drv.c | 16 ++++------------
1 file changed, 4 insertions(+), 12 deletions(-)
diff --git a/drivers/gpu/drm/mcde/mcde_drv.c b/drivers/gpu/drm/mcde/mcde_drv.c
index 88cc6b4a7a64..bdb525e3c5d7 100644
--- a/drivers/gpu/drm/mcde/mcde_drv.c
+++ b/drivers/gpu/drm/mcde/mcde_drv.c
@@ -307,24 +307,16 @@ static int mcde_probe(struct platform_device *pdev)
int ret;
int i;
- mcde = kzalloc(sizeof(*mcde), GFP_KERNEL);
- if (!mcde)
- return -ENOMEM;
- mcde->dev = dev;
-
- ret = devm_drm_dev_init(dev, &mcde->drm, &mcde_drm_driver);
- if (ret) {
- kfree(mcde);
- return ret;
- }
+ mcde = devm_drm_dev_alloc(dev, &mcde_drm_driver, struct mcde, drm);
+ if (IS_ERR(mcde))
+ return PTR_ERR(mcde);
drm = &mcde->drm;
drm->dev_private = mcde;
- drmm_add_final_kfree(drm, mcde);
+ mcde->dev = dev;
platform_set_drvdata(pdev, drm);
/* Enable continuous updates: this is what Linux' framebuffer expects */
mcde->oneshot_mode = false;
- drm->dev_private = mcde;
/* First obtain and turn on the main power */
mcde->epod = devm_regulator_get(dev, "epod");
--
2.25.1
_______________________________________________
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Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [PATCH 33/44] drm/mcde: Don't use drm_device->dev_private
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-03 13:58 ` Daniel Vetter
-1 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:58 UTC (permalink / raw)
To: DRI Development; +Cc: Daniel Vetter, Intel Graphics Development, Daniel Vetter
Upcasting using a container_of macro is more typesafe, faster and
easier for the compiler to optimize.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
---
drivers/gpu/drm/mcde/mcde_display.c | 10 +++++-----
drivers/gpu/drm/mcde/mcde_drm.h | 2 ++
drivers/gpu/drm/mcde/mcde_drv.c | 5 ++---
drivers/gpu/drm/mcde/mcde_dsi.c | 2 +-
4 files changed, 10 insertions(+), 9 deletions(-)
diff --git a/drivers/gpu/drm/mcde/mcde_display.c b/drivers/gpu/drm/mcde/mcde_display.c
index e59907e68854..04e1d38d41f7 100644
--- a/drivers/gpu/drm/mcde/mcde_display.c
+++ b/drivers/gpu/drm/mcde/mcde_display.c
@@ -948,7 +948,7 @@ static void mcde_display_disable(struct drm_simple_display_pipe *pipe)
{
struct drm_crtc *crtc = &pipe->crtc;
struct drm_device *drm = crtc->dev;
- struct mcde *mcde = drm->dev_private;
+ struct mcde *mcde = to_mcde(drm);
struct drm_pending_vblank_event *event;
drm_crtc_vblank_off(crtc);
@@ -1020,7 +1020,7 @@ static void mcde_display_update(struct drm_simple_display_pipe *pipe,
{
struct drm_crtc *crtc = &pipe->crtc;
struct drm_device *drm = crtc->dev;
- struct mcde *mcde = drm->dev_private;
+ struct mcde *mcde = to_mcde(drm);
struct drm_pending_vblank_event *event = crtc->state->event;
struct drm_plane *plane = &pipe->plane;
struct drm_plane_state *pstate = plane->state;
@@ -1078,7 +1078,7 @@ static int mcde_display_enable_vblank(struct drm_simple_display_pipe *pipe)
{
struct drm_crtc *crtc = &pipe->crtc;
struct drm_device *drm = crtc->dev;
- struct mcde *mcde = drm->dev_private;
+ struct mcde *mcde = to_mcde(drm);
u32 val;
/* Enable all VBLANK IRQs */
@@ -1097,7 +1097,7 @@ static void mcde_display_disable_vblank(struct drm_simple_display_pipe *pipe)
{
struct drm_crtc *crtc = &pipe->crtc;
struct drm_device *drm = crtc->dev;
- struct mcde *mcde = drm->dev_private;
+ struct mcde *mcde = to_mcde(drm);
/* Disable all VBLANK IRQs */
writel(0, mcde->regs + MCDE_IMSCPP);
@@ -1117,7 +1117,7 @@ static struct drm_simple_display_pipe_funcs mcde_display_funcs = {
int mcde_display_init(struct drm_device *drm)
{
- struct mcde *mcde = drm->dev_private;
+ struct mcde *mcde = to_mcde(drm);
int ret;
static const u32 formats[] = {
DRM_FORMAT_ARGB8888,
diff --git a/drivers/gpu/drm/mcde/mcde_drm.h b/drivers/gpu/drm/mcde/mcde_drm.h
index 80edd6628979..679c2c4e6d9d 100644
--- a/drivers/gpu/drm/mcde/mcde_drm.h
+++ b/drivers/gpu/drm/mcde/mcde_drm.h
@@ -34,6 +34,8 @@ struct mcde {
struct regulator *vana;
};
+#define to_mcde(dev) container_of(dev, struct mcde, drm)
+
bool mcde_dsi_irq(struct mipi_dsi_device *mdsi);
void mcde_dsi_te_request(struct mipi_dsi_device *mdsi);
extern struct platform_driver mcde_dsi_driver;
diff --git a/drivers/gpu/drm/mcde/mcde_drv.c b/drivers/gpu/drm/mcde/mcde_drv.c
index bdb525e3c5d7..84f3e2dbd77b 100644
--- a/drivers/gpu/drm/mcde/mcde_drv.c
+++ b/drivers/gpu/drm/mcde/mcde_drv.c
@@ -164,7 +164,7 @@ static irqreturn_t mcde_irq(int irq, void *data)
static int mcde_modeset_init(struct drm_device *drm)
{
struct drm_mode_config *mode_config;
- struct mcde *mcde = drm->dev_private;
+ struct mcde *mcde = to_mcde(drm);
int ret;
if (!mcde->bridge) {
@@ -311,7 +311,6 @@ static int mcde_probe(struct platform_device *pdev)
if (IS_ERR(mcde))
return PTR_ERR(mcde);
drm = &mcde->drm;
- drm->dev_private = mcde;
mcde->dev = dev;
platform_set_drvdata(pdev, drm);
@@ -486,7 +485,7 @@ static int mcde_probe(struct platform_device *pdev)
static int mcde_remove(struct platform_device *pdev)
{
struct drm_device *drm = platform_get_drvdata(pdev);
- struct mcde *mcde = drm->dev_private;
+ struct mcde *mcde = to_mcde(drm);
component_master_del(&pdev->dev, &mcde_drm_comp_ops);
clk_disable_unprepare(mcde->mcde_clk);
diff --git a/drivers/gpu/drm/mcde/mcde_dsi.c b/drivers/gpu/drm/mcde/mcde_dsi.c
index 7af5ebb0c436..1baa2324cdb9 100644
--- a/drivers/gpu/drm/mcde/mcde_dsi.c
+++ b/drivers/gpu/drm/mcde/mcde_dsi.c
@@ -1020,7 +1020,7 @@ static int mcde_dsi_bind(struct device *dev, struct device *master,
void *data)
{
struct drm_device *drm = data;
- struct mcde *mcde = drm->dev_private;
+ struct mcde *mcde = to_mcde(drm);
struct mcde_dsi *d = dev_get_drvdata(dev);
struct device_node *child;
struct drm_panel *panel = NULL;
--
2.25.1
_______________________________________________
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dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [Intel-gfx] [PATCH 33/44] drm/mcde: Don't use drm_device->dev_private
@ 2020-04-03 13:58 ` Daniel Vetter
0 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:58 UTC (permalink / raw)
To: DRI Development
Cc: Daniel Vetter, Intel Graphics Development, Linus Walleij, Daniel Vetter
Upcasting using a container_of macro is more typesafe, faster and
easier for the compiler to optimize.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
---
drivers/gpu/drm/mcde/mcde_display.c | 10 +++++-----
drivers/gpu/drm/mcde/mcde_drm.h | 2 ++
drivers/gpu/drm/mcde/mcde_drv.c | 5 ++---
drivers/gpu/drm/mcde/mcde_dsi.c | 2 +-
4 files changed, 10 insertions(+), 9 deletions(-)
diff --git a/drivers/gpu/drm/mcde/mcde_display.c b/drivers/gpu/drm/mcde/mcde_display.c
index e59907e68854..04e1d38d41f7 100644
--- a/drivers/gpu/drm/mcde/mcde_display.c
+++ b/drivers/gpu/drm/mcde/mcde_display.c
@@ -948,7 +948,7 @@ static void mcde_display_disable(struct drm_simple_display_pipe *pipe)
{
struct drm_crtc *crtc = &pipe->crtc;
struct drm_device *drm = crtc->dev;
- struct mcde *mcde = drm->dev_private;
+ struct mcde *mcde = to_mcde(drm);
struct drm_pending_vblank_event *event;
drm_crtc_vblank_off(crtc);
@@ -1020,7 +1020,7 @@ static void mcde_display_update(struct drm_simple_display_pipe *pipe,
{
struct drm_crtc *crtc = &pipe->crtc;
struct drm_device *drm = crtc->dev;
- struct mcde *mcde = drm->dev_private;
+ struct mcde *mcde = to_mcde(drm);
struct drm_pending_vblank_event *event = crtc->state->event;
struct drm_plane *plane = &pipe->plane;
struct drm_plane_state *pstate = plane->state;
@@ -1078,7 +1078,7 @@ static int mcde_display_enable_vblank(struct drm_simple_display_pipe *pipe)
{
struct drm_crtc *crtc = &pipe->crtc;
struct drm_device *drm = crtc->dev;
- struct mcde *mcde = drm->dev_private;
+ struct mcde *mcde = to_mcde(drm);
u32 val;
/* Enable all VBLANK IRQs */
@@ -1097,7 +1097,7 @@ static void mcde_display_disable_vblank(struct drm_simple_display_pipe *pipe)
{
struct drm_crtc *crtc = &pipe->crtc;
struct drm_device *drm = crtc->dev;
- struct mcde *mcde = drm->dev_private;
+ struct mcde *mcde = to_mcde(drm);
/* Disable all VBLANK IRQs */
writel(0, mcde->regs + MCDE_IMSCPP);
@@ -1117,7 +1117,7 @@ static struct drm_simple_display_pipe_funcs mcde_display_funcs = {
int mcde_display_init(struct drm_device *drm)
{
- struct mcde *mcde = drm->dev_private;
+ struct mcde *mcde = to_mcde(drm);
int ret;
static const u32 formats[] = {
DRM_FORMAT_ARGB8888,
diff --git a/drivers/gpu/drm/mcde/mcde_drm.h b/drivers/gpu/drm/mcde/mcde_drm.h
index 80edd6628979..679c2c4e6d9d 100644
--- a/drivers/gpu/drm/mcde/mcde_drm.h
+++ b/drivers/gpu/drm/mcde/mcde_drm.h
@@ -34,6 +34,8 @@ struct mcde {
struct regulator *vana;
};
+#define to_mcde(dev) container_of(dev, struct mcde, drm)
+
bool mcde_dsi_irq(struct mipi_dsi_device *mdsi);
void mcde_dsi_te_request(struct mipi_dsi_device *mdsi);
extern struct platform_driver mcde_dsi_driver;
diff --git a/drivers/gpu/drm/mcde/mcde_drv.c b/drivers/gpu/drm/mcde/mcde_drv.c
index bdb525e3c5d7..84f3e2dbd77b 100644
--- a/drivers/gpu/drm/mcde/mcde_drv.c
+++ b/drivers/gpu/drm/mcde/mcde_drv.c
@@ -164,7 +164,7 @@ static irqreturn_t mcde_irq(int irq, void *data)
static int mcde_modeset_init(struct drm_device *drm)
{
struct drm_mode_config *mode_config;
- struct mcde *mcde = drm->dev_private;
+ struct mcde *mcde = to_mcde(drm);
int ret;
if (!mcde->bridge) {
@@ -311,7 +311,6 @@ static int mcde_probe(struct platform_device *pdev)
if (IS_ERR(mcde))
return PTR_ERR(mcde);
drm = &mcde->drm;
- drm->dev_private = mcde;
mcde->dev = dev;
platform_set_drvdata(pdev, drm);
@@ -486,7 +485,7 @@ static int mcde_probe(struct platform_device *pdev)
static int mcde_remove(struct platform_device *pdev)
{
struct drm_device *drm = platform_get_drvdata(pdev);
- struct mcde *mcde = drm->dev_private;
+ struct mcde *mcde = to_mcde(drm);
component_master_del(&pdev->dev, &mcde_drm_comp_ops);
clk_disable_unprepare(mcde->mcde_clk);
diff --git a/drivers/gpu/drm/mcde/mcde_dsi.c b/drivers/gpu/drm/mcde/mcde_dsi.c
index 7af5ebb0c436..1baa2324cdb9 100644
--- a/drivers/gpu/drm/mcde/mcde_dsi.c
+++ b/drivers/gpu/drm/mcde/mcde_dsi.c
@@ -1020,7 +1020,7 @@ static int mcde_dsi_bind(struct device *dev, struct device *master,
void *data)
{
struct drm_device *drm = data;
- struct mcde *mcde = drm->dev_private;
+ struct mcde *mcde = to_mcde(drm);
struct mcde_dsi *d = dev_get_drvdata(dev);
struct device_node *child;
struct drm_panel *panel = NULL;
--
2.25.1
_______________________________________________
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Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [PATCH 34/44] drm/ingenic: Use devm_drm_dev_alloc
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-03 13:58 ` Daniel Vetter
-1 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:58 UTC (permalink / raw)
To: DRI Development
Cc: Paul Cercueil, Daniel Vetter, Intel Graphics Development, Daniel Vetter
Already using devm_drm_dev_init, so very simple replacment.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Paul Cercueil <paul@crapouillou.net>
---
drivers/gpu/drm/ingenic/ingenic-drm.c | 14 ++++----------
1 file changed, 4 insertions(+), 10 deletions(-)
diff --git a/drivers/gpu/drm/ingenic/ingenic-drm.c b/drivers/gpu/drm/ingenic/ingenic-drm.c
index a9bc6623b488..bb62d8e93985 100644
--- a/drivers/gpu/drm/ingenic/ingenic-drm.c
+++ b/drivers/gpu/drm/ingenic/ingenic-drm.c
@@ -614,9 +614,10 @@ static int ingenic_drm_probe(struct platform_device *pdev)
return -EINVAL;
}
- priv = kzalloc(sizeof(*priv), GFP_KERNEL);
- if (!priv)
- return -ENOMEM;
+ priv = devm_drm_dev_alloc(dev, &ingenic_drm_driver_data,
+ struct ingenic_drm, drm);
+ if (IS_ERR(priv))
+ return PTR_ERR(priv);
priv->soc_info = soc_info;
priv->dev = dev;
@@ -625,13 +626,6 @@ static int ingenic_drm_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, priv);
- ret = devm_drm_dev_init(dev, drm, &ingenic_drm_driver_data);
- if (ret) {
- kfree(priv);
- return ret;
- }
- drmm_add_final_kfree(drm, priv);
-
ret = drmm_mode_config_init(drm);
if (ret)
return ret;
--
2.25.1
_______________________________________________
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dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [Intel-gfx] [PATCH 34/44] drm/ingenic: Use devm_drm_dev_alloc
@ 2020-04-03 13:58 ` Daniel Vetter
0 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:58 UTC (permalink / raw)
To: DRI Development
Cc: Paul Cercueil, Daniel Vetter, Intel Graphics Development, Daniel Vetter
Already using devm_drm_dev_init, so very simple replacment.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Paul Cercueil <paul@crapouillou.net>
---
drivers/gpu/drm/ingenic/ingenic-drm.c | 14 ++++----------
1 file changed, 4 insertions(+), 10 deletions(-)
diff --git a/drivers/gpu/drm/ingenic/ingenic-drm.c b/drivers/gpu/drm/ingenic/ingenic-drm.c
index a9bc6623b488..bb62d8e93985 100644
--- a/drivers/gpu/drm/ingenic/ingenic-drm.c
+++ b/drivers/gpu/drm/ingenic/ingenic-drm.c
@@ -614,9 +614,10 @@ static int ingenic_drm_probe(struct platform_device *pdev)
return -EINVAL;
}
- priv = kzalloc(sizeof(*priv), GFP_KERNEL);
- if (!priv)
- return -ENOMEM;
+ priv = devm_drm_dev_alloc(dev, &ingenic_drm_driver_data,
+ struct ingenic_drm, drm);
+ if (IS_ERR(priv))
+ return PTR_ERR(priv);
priv->soc_info = soc_info;
priv->dev = dev;
@@ -625,13 +626,6 @@ static int ingenic_drm_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, priv);
- ret = devm_drm_dev_init(dev, drm, &ingenic_drm_driver_data);
- if (ret) {
- kfree(priv);
- return ret;
- }
- drmm_add_final_kfree(drm, priv);
-
ret = drmm_mode_config_init(drm);
if (ret)
return ret;
--
2.25.1
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^ permalink raw reply related [flat|nested] 262+ messages in thread
* [PATCH 35/44] drm/ingenic: Don't set drm_device->dev_private
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-03 13:58 ` Daniel Vetter
-1 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:58 UTC (permalink / raw)
To: DRI Development
Cc: Paul Cercueil, Daniel Vetter, Intel Graphics Development, Daniel Vetter
Entirely not used, just copypasta.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Paul Cercueil <paul@crapouillou.net>
---
drivers/gpu/drm/ingenic/ingenic-drm.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/drivers/gpu/drm/ingenic/ingenic-drm.c b/drivers/gpu/drm/ingenic/ingenic-drm.c
index bb62d8e93985..3386270cb8a3 100644
--- a/drivers/gpu/drm/ingenic/ingenic-drm.c
+++ b/drivers/gpu/drm/ingenic/ingenic-drm.c
@@ -622,7 +622,6 @@ static int ingenic_drm_probe(struct platform_device *pdev)
priv->soc_info = soc_info;
priv->dev = dev;
drm = &priv->drm;
- drm->dev_private = priv;
platform_set_drvdata(pdev, priv);
--
2.25.1
_______________________________________________
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https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [Intel-gfx] [PATCH 35/44] drm/ingenic: Don't set drm_device->dev_private
@ 2020-04-03 13:58 ` Daniel Vetter
0 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:58 UTC (permalink / raw)
To: DRI Development
Cc: Paul Cercueil, Daniel Vetter, Intel Graphics Development, Daniel Vetter
Entirely not used, just copypasta.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Paul Cercueil <paul@crapouillou.net>
---
drivers/gpu/drm/ingenic/ingenic-drm.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/drivers/gpu/drm/ingenic/ingenic-drm.c b/drivers/gpu/drm/ingenic/ingenic-drm.c
index bb62d8e93985..3386270cb8a3 100644
--- a/drivers/gpu/drm/ingenic/ingenic-drm.c
+++ b/drivers/gpu/drm/ingenic/ingenic-drm.c
@@ -622,7 +622,6 @@ static int ingenic_drm_probe(struct platform_device *pdev)
priv->soc_info = soc_info;
priv->dev = dev;
drm = &priv->drm;
- drm->dev_private = priv;
platform_set_drvdata(pdev, priv);
--
2.25.1
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^ permalink raw reply related [flat|nested] 262+ messages in thread
* [PATCH 36/44] drm/komeda: use devm_drm_dev_alloc
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-03 13:58 ` Daniel Vetter
-1 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:58 UTC (permalink / raw)
To: DRI Development
Cc: Daniel Vetter, Intel Graphics Development, Liviu Dudau,
James (Qian) Wang, Daniel Vetter, Mihail Atanassov
Komeda uses the component framework, which does open/close a new
devres group around all the bind callbacks. Which means we can use
devm_ functions for managing the drm_device cleanup, with leaking
stuff in case of deferred probes or other reasons to unbind
components, or the component_master.
Also note that this fixes a double-free in the probe unroll code, bot
drm_dev_put and kfree(kms) result in the kms allocation getting freed.
Aside: komeda_bind could be cleaned up a lot, devm_kfree is a bit
redundant. Plus I'm not clear on why there's suballocations for
mdrv->mdev and mdrv->kms. Plus I'm not sure the lifetimes are correct
with all that devm_kzalloc usage ... That structure layout is also the
reason why komeda still uses drm_device->dev_private and can't easily
be replaced with a proper container_of upcasting. I'm pretty sure that
there's endless amounts of hotunplug/hotremove bugs in there with all
the unprotected dereferencing of drm_device->dev_private.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: "James (Qian) Wang" <james.qian.wang@arm.com>
Cc: Liviu Dudau <liviu.dudau@arm.com>
Cc: Mihail Atanassov <mihail.atanassov@arm.com>
---
drivers/gpu/drm/arm/display/komeda/komeda_kms.c | 16 +++++-----------
1 file changed, 5 insertions(+), 11 deletions(-)
diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_kms.c b/drivers/gpu/drm/arm/display/komeda/komeda_kms.c
index 16dfd5cdb66c..6b85d5f4caa8 100644
--- a/drivers/gpu/drm/arm/display/komeda/komeda_kms.c
+++ b/drivers/gpu/drm/arm/display/komeda/komeda_kms.c
@@ -261,18 +261,16 @@ static void komeda_kms_mode_config_init(struct komeda_kms_dev *kms,
struct komeda_kms_dev *komeda_kms_attach(struct komeda_dev *mdev)
{
- struct komeda_kms_dev *kms = kzalloc(sizeof(*kms), GFP_KERNEL);
+ struct komeda_kms_dev *kms;
struct drm_device *drm;
int err;
- if (!kms)
- return ERR_PTR(-ENOMEM);
+ kms = devm_drm_dev_alloc(mdev->dev, &komeda_kms_driver,
+ struct komeda_kms_dev, base);
+ if (IS_ERR(kms))
+ return kms;
drm = &kms->base;
- err = drm_dev_init(drm, &komeda_kms_driver, mdev->dev);
- if (err)
- goto free_kms;
- drmm_add_final_kfree(drm, kms);
drm->dev_private = mdev;
@@ -329,9 +327,6 @@ struct komeda_kms_dev *komeda_kms_attach(struct komeda_dev *mdev)
drm_mode_config_cleanup(drm);
komeda_kms_cleanup_private_objs(kms);
drm->dev_private = NULL;
- drm_dev_put(drm);
-free_kms:
- kfree(kms);
return ERR_PTR(err);
}
@@ -348,5 +343,4 @@ void komeda_kms_detach(struct komeda_kms_dev *kms)
drm_mode_config_cleanup(drm);
komeda_kms_cleanup_private_objs(kms);
drm->dev_private = NULL;
- drm_dev_put(drm);
}
--
2.25.1
_______________________________________________
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dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [Intel-gfx] [PATCH 36/44] drm/komeda: use devm_drm_dev_alloc
@ 2020-04-03 13:58 ` Daniel Vetter
0 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:58 UTC (permalink / raw)
To: DRI Development
Cc: Daniel Vetter, Intel Graphics Development, James (Qian) Wang,
Daniel Vetter, Mihail Atanassov
Komeda uses the component framework, which does open/close a new
devres group around all the bind callbacks. Which means we can use
devm_ functions for managing the drm_device cleanup, with leaking
stuff in case of deferred probes or other reasons to unbind
components, or the component_master.
Also note that this fixes a double-free in the probe unroll code, bot
drm_dev_put and kfree(kms) result in the kms allocation getting freed.
Aside: komeda_bind could be cleaned up a lot, devm_kfree is a bit
redundant. Plus I'm not clear on why there's suballocations for
mdrv->mdev and mdrv->kms. Plus I'm not sure the lifetimes are correct
with all that devm_kzalloc usage ... That structure layout is also the
reason why komeda still uses drm_device->dev_private and can't easily
be replaced with a proper container_of upcasting. I'm pretty sure that
there's endless amounts of hotunplug/hotremove bugs in there with all
the unprotected dereferencing of drm_device->dev_private.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: "James (Qian) Wang" <james.qian.wang@arm.com>
Cc: Liviu Dudau <liviu.dudau@arm.com>
Cc: Mihail Atanassov <mihail.atanassov@arm.com>
---
drivers/gpu/drm/arm/display/komeda/komeda_kms.c | 16 +++++-----------
1 file changed, 5 insertions(+), 11 deletions(-)
diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_kms.c b/drivers/gpu/drm/arm/display/komeda/komeda_kms.c
index 16dfd5cdb66c..6b85d5f4caa8 100644
--- a/drivers/gpu/drm/arm/display/komeda/komeda_kms.c
+++ b/drivers/gpu/drm/arm/display/komeda/komeda_kms.c
@@ -261,18 +261,16 @@ static void komeda_kms_mode_config_init(struct komeda_kms_dev *kms,
struct komeda_kms_dev *komeda_kms_attach(struct komeda_dev *mdev)
{
- struct komeda_kms_dev *kms = kzalloc(sizeof(*kms), GFP_KERNEL);
+ struct komeda_kms_dev *kms;
struct drm_device *drm;
int err;
- if (!kms)
- return ERR_PTR(-ENOMEM);
+ kms = devm_drm_dev_alloc(mdev->dev, &komeda_kms_driver,
+ struct komeda_kms_dev, base);
+ if (IS_ERR(kms))
+ return kms;
drm = &kms->base;
- err = drm_dev_init(drm, &komeda_kms_driver, mdev->dev);
- if (err)
- goto free_kms;
- drmm_add_final_kfree(drm, kms);
drm->dev_private = mdev;
@@ -329,9 +327,6 @@ struct komeda_kms_dev *komeda_kms_attach(struct komeda_dev *mdev)
drm_mode_config_cleanup(drm);
komeda_kms_cleanup_private_objs(kms);
drm->dev_private = NULL;
- drm_dev_put(drm);
-free_kms:
- kfree(kms);
return ERR_PTR(err);
}
@@ -348,5 +343,4 @@ void komeda_kms_detach(struct komeda_kms_dev *kms)
drm_mode_config_cleanup(drm);
komeda_kms_cleanup_private_objs(kms);
drm->dev_private = NULL;
- drm_dev_put(drm);
}
--
2.25.1
_______________________________________________
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Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [PATCH 37/44] drm/armada: Use devm_drm_dev_alloc
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-03 13:58 ` Daniel Vetter
-1 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:58 UTC (permalink / raw)
To: DRI Development
Cc: Daniel Vetter, Intel Graphics Development, Russell King, Daniel Vetter
Also remove the now no longer needed build bug on since that's already
not needed anymore with drmm_add_final_kfree. Conversion to managed
drm_device cleanup is easy, the final drm_dev_put() is already the
last thing in both the bind unbind as in the unbind flow.
Also, this relies on component.c correctly wrapping bind&unbind in
separate devres groups, which it does.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Russell King <linux@armlinux.org.uk>
---
drivers/gpu/drm/armada/armada_drv.c | 26 ++++++--------------------
1 file changed, 6 insertions(+), 20 deletions(-)
diff --git a/drivers/gpu/drm/armada/armada_drv.c b/drivers/gpu/drm/armada/armada_drv.c
index dd9ed71ed942..2546ff9d1c92 100644
--- a/drivers/gpu/drm/armada/armada_drv.c
+++ b/drivers/gpu/drm/armada/armada_drv.c
@@ -87,24 +87,13 @@ static int armada_drm_bind(struct device *dev)
"armada-drm"))
return -EBUSY;
- priv = kzalloc(sizeof(*priv), GFP_KERNEL);
- if (!priv)
- return -ENOMEM;
-
- /*
- * The drm_device structure must be at the start of
- * armada_private for drm_dev_put() to work correctly.
- */
- BUILD_BUG_ON(offsetof(struct armada_private, drm) != 0);
-
- ret = drm_dev_init(&priv->drm, &armada_drm_driver, dev);
- if (ret) {
- dev_err(dev, "[" DRM_NAME ":%s] drm_dev_init failed: %d\n",
- __func__, ret);
- kfree(priv);
- return ret;
+ priv = devm_drm_dev_alloc(dev, &armada_drm_driver,
+ struct armada_private, drm);
+ if (IS_ERR(priv)) {
+ dev_err(dev, "[" DRM_NAME ":%s] devm_drm_dev_alloc failed: %li\n",
+ __func__, PTR_ERR(priv));
+ return PTR_ERR(priv);
}
- drmm_add_final_kfree(&priv->drm, priv);
/* Remove early framebuffers */
ret = drm_fb_helper_remove_conflicting_framebuffers(NULL,
@@ -174,7 +163,6 @@ static int armada_drm_bind(struct device *dev)
err_kms:
drm_mode_config_cleanup(&priv->drm);
drm_mm_takedown(&priv->linear);
- drm_dev_put(&priv->drm);
return ret;
}
@@ -194,8 +182,6 @@ static void armada_drm_unbind(struct device *dev)
drm_mode_config_cleanup(&priv->drm);
drm_mm_takedown(&priv->linear);
-
- drm_dev_put(&priv->drm);
}
static int compare_of(struct device *dev, void *data)
--
2.25.1
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dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [Intel-gfx] [PATCH 37/44] drm/armada: Use devm_drm_dev_alloc
@ 2020-04-03 13:58 ` Daniel Vetter
0 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:58 UTC (permalink / raw)
To: DRI Development
Cc: Daniel Vetter, Intel Graphics Development, Russell King, Daniel Vetter
Also remove the now no longer needed build bug on since that's already
not needed anymore with drmm_add_final_kfree. Conversion to managed
drm_device cleanup is easy, the final drm_dev_put() is already the
last thing in both the bind unbind as in the unbind flow.
Also, this relies on component.c correctly wrapping bind&unbind in
separate devres groups, which it does.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Russell King <linux@armlinux.org.uk>
---
drivers/gpu/drm/armada/armada_drv.c | 26 ++++++--------------------
1 file changed, 6 insertions(+), 20 deletions(-)
diff --git a/drivers/gpu/drm/armada/armada_drv.c b/drivers/gpu/drm/armada/armada_drv.c
index dd9ed71ed942..2546ff9d1c92 100644
--- a/drivers/gpu/drm/armada/armada_drv.c
+++ b/drivers/gpu/drm/armada/armada_drv.c
@@ -87,24 +87,13 @@ static int armada_drm_bind(struct device *dev)
"armada-drm"))
return -EBUSY;
- priv = kzalloc(sizeof(*priv), GFP_KERNEL);
- if (!priv)
- return -ENOMEM;
-
- /*
- * The drm_device structure must be at the start of
- * armada_private for drm_dev_put() to work correctly.
- */
- BUILD_BUG_ON(offsetof(struct armada_private, drm) != 0);
-
- ret = drm_dev_init(&priv->drm, &armada_drm_driver, dev);
- if (ret) {
- dev_err(dev, "[" DRM_NAME ":%s] drm_dev_init failed: %d\n",
- __func__, ret);
- kfree(priv);
- return ret;
+ priv = devm_drm_dev_alloc(dev, &armada_drm_driver,
+ struct armada_private, drm);
+ if (IS_ERR(priv)) {
+ dev_err(dev, "[" DRM_NAME ":%s] devm_drm_dev_alloc failed: %li\n",
+ __func__, PTR_ERR(priv));
+ return PTR_ERR(priv);
}
- drmm_add_final_kfree(&priv->drm, priv);
/* Remove early framebuffers */
ret = drm_fb_helper_remove_conflicting_framebuffers(NULL,
@@ -174,7 +163,6 @@ static int armada_drm_bind(struct device *dev)
err_kms:
drm_mode_config_cleanup(&priv->drm);
drm_mm_takedown(&priv->linear);
- drm_dev_put(&priv->drm);
return ret;
}
@@ -194,8 +182,6 @@ static void armada_drm_unbind(struct device *dev)
drm_mode_config_cleanup(&priv->drm);
drm_mm_takedown(&priv->linear);
-
- drm_dev_put(&priv->drm);
}
static int compare_of(struct device *dev, void *data)
--
2.25.1
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https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [PATCH 38/44] drm/armada: Don't use drm_device->dev_private
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-03 13:58 ` Daniel Vetter
-1 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:58 UTC (permalink / raw)
To: DRI Development
Cc: Daniel Vetter, Intel Graphics Development, Russell King, Daniel Vetter
Upcasting using a container_of macro is more typesafe, faster and
easier for the compiler to optimize.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Russell King <linux@armlinux.org.uk>
---
drivers/gpu/drm/armada/armada_crtc.c | 4 ++--
drivers/gpu/drm/armada/armada_debugfs.c | 2 +-
drivers/gpu/drm/armada/armada_drm.h | 2 ++
drivers/gpu/drm/armada/armada_drv.c | 4 +---
drivers/gpu/drm/armada/armada_fbdev.c | 4 ++--
drivers/gpu/drm/armada/armada_gem.c | 4 ++--
drivers/gpu/drm/armada/armada_overlay.c | 8 ++++----
7 files changed, 14 insertions(+), 14 deletions(-)
diff --git a/drivers/gpu/drm/armada/armada_crtc.c b/drivers/gpu/drm/armada/armada_crtc.c
index c2b92acd1e9a..8686e50226a5 100644
--- a/drivers/gpu/drm/armada/armada_crtc.c
+++ b/drivers/gpu/drm/armada/armada_crtc.c
@@ -757,7 +757,7 @@ static int armada_drm_crtc_cursor_move(struct drm_crtc *crtc, int x, int y)
static void armada_drm_crtc_destroy(struct drm_crtc *crtc)
{
struct armada_crtc *dcrtc = drm_to_armada_crtc(crtc);
- struct armada_private *priv = crtc->dev->dev_private;
+ struct armada_private *priv = drm_to_armada_dev(crtc->dev);
if (dcrtc->cursor_obj)
drm_gem_object_put_unlocked(&dcrtc->cursor_obj->obj);
@@ -901,7 +901,7 @@ static int armada_drm_crtc_create(struct drm_device *drm, struct device *dev,
struct resource *res, int irq, const struct armada_variant *variant,
struct device_node *port)
{
- struct armada_private *priv = drm->dev_private;
+ struct armada_private *priv = drm_to_armada_dev(drm);
struct armada_crtc *dcrtc;
struct drm_plane *primary;
void __iomem *base;
diff --git a/drivers/gpu/drm/armada/armada_debugfs.c b/drivers/gpu/drm/armada/armada_debugfs.c
index c6fc2f1d58e9..29f4b52e3c8d 100644
--- a/drivers/gpu/drm/armada/armada_debugfs.c
+++ b/drivers/gpu/drm/armada/armada_debugfs.c
@@ -19,7 +19,7 @@ static int armada_debugfs_gem_linear_show(struct seq_file *m, void *data)
{
struct drm_info_node *node = m->private;
struct drm_device *dev = node->minor->dev;
- struct armada_private *priv = dev->dev_private;
+ struct armada_private *priv = drm_to_armada_dev(dev);
struct drm_printer p = drm_seq_file_printer(m);
mutex_lock(&priv->linear_lock);
diff --git a/drivers/gpu/drm/armada/armada_drm.h b/drivers/gpu/drm/armada/armada_drm.h
index a11bdaccbb33..6a5a87932576 100644
--- a/drivers/gpu/drm/armada/armada_drm.h
+++ b/drivers/gpu/drm/armada/armada_drm.h
@@ -73,6 +73,8 @@ struct armada_private {
#endif
};
+#define drm_to_armada_dev(dev) container_of(dev, struct armada_private, drm)
+
int armada_fbdev_init(struct drm_device *);
void armada_fbdev_fini(struct drm_device *);
diff --git a/drivers/gpu/drm/armada/armada_drv.c b/drivers/gpu/drm/armada/armada_drv.c
index 2546ff9d1c92..2a9ee76ee585 100644
--- a/drivers/gpu/drm/armada/armada_drv.c
+++ b/drivers/gpu/drm/armada/armada_drv.c
@@ -106,8 +106,6 @@ static int armada_drm_bind(struct device *dev)
return ret;
}
- priv->drm.dev_private = priv;
-
dev_set_drvdata(dev, &priv->drm);
/* Mode setting support */
@@ -169,7 +167,7 @@ static int armada_drm_bind(struct device *dev)
static void armada_drm_unbind(struct device *dev)
{
struct drm_device *drm = dev_get_drvdata(dev);
- struct armada_private *priv = drm->dev_private;
+ struct armada_private *priv = drm_to_armada_dev(drm);
drm_kms_helper_poll_fini(&priv->drm);
armada_fbdev_fini(&priv->drm);
diff --git a/drivers/gpu/drm/armada/armada_fbdev.c b/drivers/gpu/drm/armada/armada_fbdev.c
index f2dc371bd8e5..c9a414b3a8c4 100644
--- a/drivers/gpu/drm/armada/armada_fbdev.c
+++ b/drivers/gpu/drm/armada/armada_fbdev.c
@@ -117,7 +117,7 @@ static const struct drm_fb_helper_funcs armada_fb_helper_funcs = {
int armada_fbdev_init(struct drm_device *dev)
{
- struct armada_private *priv = dev->dev_private;
+ struct armada_private *priv = drm_to_armada_dev(dev);
struct drm_fb_helper *fbh;
int ret;
@@ -151,7 +151,7 @@ int armada_fbdev_init(struct drm_device *dev)
void armada_fbdev_fini(struct drm_device *dev)
{
- struct armada_private *priv = dev->dev_private;
+ struct armada_private *priv = drm_to_armada_dev(dev);
struct drm_fb_helper *fbh = priv->fbdev;
if (fbh) {
diff --git a/drivers/gpu/drm/armada/armada_gem.c b/drivers/gpu/drm/armada/armada_gem.c
index 976685f2939e..2c7d5f71e715 100644
--- a/drivers/gpu/drm/armada/armada_gem.c
+++ b/drivers/gpu/drm/armada/armada_gem.c
@@ -39,7 +39,7 @@ static size_t roundup_gem_size(size_t size)
void armada_gem_free_object(struct drm_gem_object *obj)
{
struct armada_gem_object *dobj = drm_to_armada_gem(obj);
- struct armada_private *priv = obj->dev->dev_private;
+ struct armada_private *priv = drm_to_armada_dev(obj->dev);
DRM_DEBUG_DRIVER("release obj %p\n", dobj);
@@ -77,7 +77,7 @@ void armada_gem_free_object(struct drm_gem_object *obj)
int
armada_gem_linear_back(struct drm_device *dev, struct armada_gem_object *obj)
{
- struct armada_private *priv = dev->dev_private;
+ struct armada_private *priv = drm_to_armada_dev(dev);
size_t size = obj->obj.size;
if (obj->page || obj->linear)
diff --git a/drivers/gpu/drm/armada/armada_overlay.c b/drivers/gpu/drm/armada/armada_overlay.c
index 07f0da4d9ba1..30e01101f59e 100644
--- a/drivers/gpu/drm/armada/armada_overlay.c
+++ b/drivers/gpu/drm/armada/armada_overlay.c
@@ -344,7 +344,7 @@ static int armada_overlay_set_property(struct drm_plane *plane,
struct drm_plane_state *state, struct drm_property *property,
uint64_t val)
{
- struct armada_private *priv = plane->dev->dev_private;
+ struct armada_private *priv = drm_to_armada_dev(plane->dev);
#define K2R(val) (((val) >> 0) & 0xff)
#define K2G(val) (((val) >> 8) & 0xff)
@@ -412,7 +412,7 @@ static int armada_overlay_get_property(struct drm_plane *plane,
const struct drm_plane_state *state, struct drm_property *property,
uint64_t *val)
{
- struct armada_private *priv = plane->dev->dev_private;
+ struct armada_private *priv = drm_to_armada_dev(plane->dev);
#define C2K(c,s) (((c) >> (s)) & 0xff)
#define R2BGR(r,g,b,s) (C2K(r,s) << 0 | C2K(g,s) << 8 | C2K(b,s) << 16)
@@ -505,7 +505,7 @@ static const struct drm_prop_enum_list armada_drm_colorkey_enum_list[] = {
static int armada_overlay_create_properties(struct drm_device *dev)
{
- struct armada_private *priv = dev->dev_private;
+ struct armada_private *priv = drm_to_armada_dev(dev);
if (priv->colorkey_prop)
return 0;
@@ -539,7 +539,7 @@ static int armada_overlay_create_properties(struct drm_device *dev)
int armada_overlay_plane_create(struct drm_device *dev, unsigned long crtcs)
{
- struct armada_private *priv = dev->dev_private;
+ struct armada_private *priv = drm_to_armada_dev(dev);
struct drm_mode_object *mobj;
struct drm_plane *overlay;
int ret;
--
2.25.1
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [Intel-gfx] [PATCH 38/44] drm/armada: Don't use drm_device->dev_private
@ 2020-04-03 13:58 ` Daniel Vetter
0 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:58 UTC (permalink / raw)
To: DRI Development
Cc: Daniel Vetter, Intel Graphics Development, Russell King, Daniel Vetter
Upcasting using a container_of macro is more typesafe, faster and
easier for the compiler to optimize.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Russell King <linux@armlinux.org.uk>
---
drivers/gpu/drm/armada/armada_crtc.c | 4 ++--
drivers/gpu/drm/armada/armada_debugfs.c | 2 +-
drivers/gpu/drm/armada/armada_drm.h | 2 ++
drivers/gpu/drm/armada/armada_drv.c | 4 +---
drivers/gpu/drm/armada/armada_fbdev.c | 4 ++--
drivers/gpu/drm/armada/armada_gem.c | 4 ++--
drivers/gpu/drm/armada/armada_overlay.c | 8 ++++----
7 files changed, 14 insertions(+), 14 deletions(-)
diff --git a/drivers/gpu/drm/armada/armada_crtc.c b/drivers/gpu/drm/armada/armada_crtc.c
index c2b92acd1e9a..8686e50226a5 100644
--- a/drivers/gpu/drm/armada/armada_crtc.c
+++ b/drivers/gpu/drm/armada/armada_crtc.c
@@ -757,7 +757,7 @@ static int armada_drm_crtc_cursor_move(struct drm_crtc *crtc, int x, int y)
static void armada_drm_crtc_destroy(struct drm_crtc *crtc)
{
struct armada_crtc *dcrtc = drm_to_armada_crtc(crtc);
- struct armada_private *priv = crtc->dev->dev_private;
+ struct armada_private *priv = drm_to_armada_dev(crtc->dev);
if (dcrtc->cursor_obj)
drm_gem_object_put_unlocked(&dcrtc->cursor_obj->obj);
@@ -901,7 +901,7 @@ static int armada_drm_crtc_create(struct drm_device *drm, struct device *dev,
struct resource *res, int irq, const struct armada_variant *variant,
struct device_node *port)
{
- struct armada_private *priv = drm->dev_private;
+ struct armada_private *priv = drm_to_armada_dev(drm);
struct armada_crtc *dcrtc;
struct drm_plane *primary;
void __iomem *base;
diff --git a/drivers/gpu/drm/armada/armada_debugfs.c b/drivers/gpu/drm/armada/armada_debugfs.c
index c6fc2f1d58e9..29f4b52e3c8d 100644
--- a/drivers/gpu/drm/armada/armada_debugfs.c
+++ b/drivers/gpu/drm/armada/armada_debugfs.c
@@ -19,7 +19,7 @@ static int armada_debugfs_gem_linear_show(struct seq_file *m, void *data)
{
struct drm_info_node *node = m->private;
struct drm_device *dev = node->minor->dev;
- struct armada_private *priv = dev->dev_private;
+ struct armada_private *priv = drm_to_armada_dev(dev);
struct drm_printer p = drm_seq_file_printer(m);
mutex_lock(&priv->linear_lock);
diff --git a/drivers/gpu/drm/armada/armada_drm.h b/drivers/gpu/drm/armada/armada_drm.h
index a11bdaccbb33..6a5a87932576 100644
--- a/drivers/gpu/drm/armada/armada_drm.h
+++ b/drivers/gpu/drm/armada/armada_drm.h
@@ -73,6 +73,8 @@ struct armada_private {
#endif
};
+#define drm_to_armada_dev(dev) container_of(dev, struct armada_private, drm)
+
int armada_fbdev_init(struct drm_device *);
void armada_fbdev_fini(struct drm_device *);
diff --git a/drivers/gpu/drm/armada/armada_drv.c b/drivers/gpu/drm/armada/armada_drv.c
index 2546ff9d1c92..2a9ee76ee585 100644
--- a/drivers/gpu/drm/armada/armada_drv.c
+++ b/drivers/gpu/drm/armada/armada_drv.c
@@ -106,8 +106,6 @@ static int armada_drm_bind(struct device *dev)
return ret;
}
- priv->drm.dev_private = priv;
-
dev_set_drvdata(dev, &priv->drm);
/* Mode setting support */
@@ -169,7 +167,7 @@ static int armada_drm_bind(struct device *dev)
static void armada_drm_unbind(struct device *dev)
{
struct drm_device *drm = dev_get_drvdata(dev);
- struct armada_private *priv = drm->dev_private;
+ struct armada_private *priv = drm_to_armada_dev(drm);
drm_kms_helper_poll_fini(&priv->drm);
armada_fbdev_fini(&priv->drm);
diff --git a/drivers/gpu/drm/armada/armada_fbdev.c b/drivers/gpu/drm/armada/armada_fbdev.c
index f2dc371bd8e5..c9a414b3a8c4 100644
--- a/drivers/gpu/drm/armada/armada_fbdev.c
+++ b/drivers/gpu/drm/armada/armada_fbdev.c
@@ -117,7 +117,7 @@ static const struct drm_fb_helper_funcs armada_fb_helper_funcs = {
int armada_fbdev_init(struct drm_device *dev)
{
- struct armada_private *priv = dev->dev_private;
+ struct armada_private *priv = drm_to_armada_dev(dev);
struct drm_fb_helper *fbh;
int ret;
@@ -151,7 +151,7 @@ int armada_fbdev_init(struct drm_device *dev)
void armada_fbdev_fini(struct drm_device *dev)
{
- struct armada_private *priv = dev->dev_private;
+ struct armada_private *priv = drm_to_armada_dev(dev);
struct drm_fb_helper *fbh = priv->fbdev;
if (fbh) {
diff --git a/drivers/gpu/drm/armada/armada_gem.c b/drivers/gpu/drm/armada/armada_gem.c
index 976685f2939e..2c7d5f71e715 100644
--- a/drivers/gpu/drm/armada/armada_gem.c
+++ b/drivers/gpu/drm/armada/armada_gem.c
@@ -39,7 +39,7 @@ static size_t roundup_gem_size(size_t size)
void armada_gem_free_object(struct drm_gem_object *obj)
{
struct armada_gem_object *dobj = drm_to_armada_gem(obj);
- struct armada_private *priv = obj->dev->dev_private;
+ struct armada_private *priv = drm_to_armada_dev(obj->dev);
DRM_DEBUG_DRIVER("release obj %p\n", dobj);
@@ -77,7 +77,7 @@ void armada_gem_free_object(struct drm_gem_object *obj)
int
armada_gem_linear_back(struct drm_device *dev, struct armada_gem_object *obj)
{
- struct armada_private *priv = dev->dev_private;
+ struct armada_private *priv = drm_to_armada_dev(dev);
size_t size = obj->obj.size;
if (obj->page || obj->linear)
diff --git a/drivers/gpu/drm/armada/armada_overlay.c b/drivers/gpu/drm/armada/armada_overlay.c
index 07f0da4d9ba1..30e01101f59e 100644
--- a/drivers/gpu/drm/armada/armada_overlay.c
+++ b/drivers/gpu/drm/armada/armada_overlay.c
@@ -344,7 +344,7 @@ static int armada_overlay_set_property(struct drm_plane *plane,
struct drm_plane_state *state, struct drm_property *property,
uint64_t val)
{
- struct armada_private *priv = plane->dev->dev_private;
+ struct armada_private *priv = drm_to_armada_dev(plane->dev);
#define K2R(val) (((val) >> 0) & 0xff)
#define K2G(val) (((val) >> 8) & 0xff)
@@ -412,7 +412,7 @@ static int armada_overlay_get_property(struct drm_plane *plane,
const struct drm_plane_state *state, struct drm_property *property,
uint64_t *val)
{
- struct armada_private *priv = plane->dev->dev_private;
+ struct armada_private *priv = drm_to_armada_dev(plane->dev);
#define C2K(c,s) (((c) >> (s)) & 0xff)
#define R2BGR(r,g,b,s) (C2K(r,s) << 0 | C2K(g,s) << 8 | C2K(b,s) << 16)
@@ -505,7 +505,7 @@ static const struct drm_prop_enum_list armada_drm_colorkey_enum_list[] = {
static int armada_overlay_create_properties(struct drm_device *dev)
{
- struct armada_private *priv = dev->dev_private;
+ struct armada_private *priv = drm_to_armada_dev(dev);
if (priv->colorkey_prop)
return 0;
@@ -539,7 +539,7 @@ static int armada_overlay_create_properties(struct drm_device *dev)
int armada_overlay_plane_create(struct drm_device *dev, unsigned long crtcs)
{
- struct armada_private *priv = dev->dev_private;
+ struct armada_private *priv = drm_to_armada_dev(dev);
struct drm_mode_object *mobj;
struct drm_plane *overlay;
int ret;
--
2.25.1
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [PATCH 39/44] drm/cirrus: Use devm_drm_dev_alloc
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
(?)
@ 2020-04-03 13:58 ` Daniel Vetter
-1 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:58 UTC (permalink / raw)
To: DRI Development
Cc: Rob Herring, Daniel Vetter, Intel Graphics Development,
virtualization, Noralf Trønnes, Thomas Zimmermann,
Daniel Vetter, Dave Airlie, Sam Ravnborg, Emil Velikov
Already using devm_drm_dev_init, so very simple replacment.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Dave Airlie <airlied@redhat.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: "Noralf Trønnes" <noralf@tronnes.org>
Cc: Rob Herring <robh@kernel.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: virtualization@lists.linux-foundation.org
Cc: Emil Velikov <emil.velikov@collabora.com>
---
drivers/gpu/drm/cirrus/cirrus.c | 13 ++++---------
1 file changed, 4 insertions(+), 9 deletions(-)
diff --git a/drivers/gpu/drm/cirrus/cirrus.c b/drivers/gpu/drm/cirrus/cirrus.c
index a36269717c3b..4b65637147ba 100644
--- a/drivers/gpu/drm/cirrus/cirrus.c
+++ b/drivers/gpu/drm/cirrus/cirrus.c
@@ -567,18 +567,13 @@ static int cirrus_pci_probe(struct pci_dev *pdev,
return ret;
ret = -ENOMEM;
- cirrus = kzalloc(sizeof(*cirrus), GFP_KERNEL);
- if (cirrus == NULL)
- return ret;
+ cirrus = devm_drm_dev_alloc(&pdev->dev, &cirrus_driver,
+ struct cirrus_device, dev);
+ if (IS_ERR(cirrus))
+ return PTR_ERR(cirrus);
dev = &cirrus->dev;
- ret = devm_drm_dev_init(&pdev->dev, dev, &cirrus_driver);
- if (ret) {
- kfree(cirrus);
- return ret;
- }
dev->dev_private = cirrus;
- drmm_add_final_kfree(dev, cirrus);
cirrus->vram = devm_ioremap(&pdev->dev, pci_resource_start(pdev, 0),
pci_resource_len(pdev, 0));
--
2.25.1
_______________________________________________
Virtualization mailing list
Virtualization@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/virtualization
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [PATCH 39/44] drm/cirrus: Use devm_drm_dev_alloc
@ 2020-04-03 13:58 ` Daniel Vetter
0 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:58 UTC (permalink / raw)
To: DRI Development
Cc: Daniel Vetter, Intel Graphics Development, virtualization,
Gerd Hoffmann, Thomas Zimmermann, Daniel Vetter, Dave Airlie,
Sam Ravnborg, Emil Velikov
Already using devm_drm_dev_init, so very simple replacment.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Dave Airlie <airlied@redhat.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: "Noralf Trønnes" <noralf@tronnes.org>
Cc: Rob Herring <robh@kernel.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: virtualization@lists.linux-foundation.org
Cc: Emil Velikov <emil.velikov@collabora.com>
---
drivers/gpu/drm/cirrus/cirrus.c | 13 ++++---------
1 file changed, 4 insertions(+), 9 deletions(-)
diff --git a/drivers/gpu/drm/cirrus/cirrus.c b/drivers/gpu/drm/cirrus/cirrus.c
index a36269717c3b..4b65637147ba 100644
--- a/drivers/gpu/drm/cirrus/cirrus.c
+++ b/drivers/gpu/drm/cirrus/cirrus.c
@@ -567,18 +567,13 @@ static int cirrus_pci_probe(struct pci_dev *pdev,
return ret;
ret = -ENOMEM;
- cirrus = kzalloc(sizeof(*cirrus), GFP_KERNEL);
- if (cirrus == NULL)
- return ret;
+ cirrus = devm_drm_dev_alloc(&pdev->dev, &cirrus_driver,
+ struct cirrus_device, dev);
+ if (IS_ERR(cirrus))
+ return PTR_ERR(cirrus);
dev = &cirrus->dev;
- ret = devm_drm_dev_init(&pdev->dev, dev, &cirrus_driver);
- if (ret) {
- kfree(cirrus);
- return ret;
- }
dev->dev_private = cirrus;
- drmm_add_final_kfree(dev, cirrus);
cirrus->vram = devm_ioremap(&pdev->dev, pci_resource_start(pdev, 0),
pci_resource_len(pdev, 0));
--
2.25.1
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [Intel-gfx] [PATCH 39/44] drm/cirrus: Use devm_drm_dev_alloc
@ 2020-04-03 13:58 ` Daniel Vetter
0 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:58 UTC (permalink / raw)
To: DRI Development
Cc: Rob Herring, Daniel Vetter, Intel Graphics Development,
virtualization, Noralf Trønnes, Gerd Hoffmann,
Thomas Zimmermann, Daniel Vetter, Dave Airlie, Sam Ravnborg,
Emil Velikov
Already using devm_drm_dev_init, so very simple replacment.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Dave Airlie <airlied@redhat.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: "Noralf Trønnes" <noralf@tronnes.org>
Cc: Rob Herring <robh@kernel.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: virtualization@lists.linux-foundation.org
Cc: Emil Velikov <emil.velikov@collabora.com>
---
drivers/gpu/drm/cirrus/cirrus.c | 13 ++++---------
1 file changed, 4 insertions(+), 9 deletions(-)
diff --git a/drivers/gpu/drm/cirrus/cirrus.c b/drivers/gpu/drm/cirrus/cirrus.c
index a36269717c3b..4b65637147ba 100644
--- a/drivers/gpu/drm/cirrus/cirrus.c
+++ b/drivers/gpu/drm/cirrus/cirrus.c
@@ -567,18 +567,13 @@ static int cirrus_pci_probe(struct pci_dev *pdev,
return ret;
ret = -ENOMEM;
- cirrus = kzalloc(sizeof(*cirrus), GFP_KERNEL);
- if (cirrus == NULL)
- return ret;
+ cirrus = devm_drm_dev_alloc(&pdev->dev, &cirrus_driver,
+ struct cirrus_device, dev);
+ if (IS_ERR(cirrus))
+ return PTR_ERR(cirrus);
dev = &cirrus->dev;
- ret = devm_drm_dev_init(&pdev->dev, dev, &cirrus_driver);
- if (ret) {
- kfree(cirrus);
- return ret;
- }
dev->dev_private = cirrus;
- drmm_add_final_kfree(dev, cirrus);
cirrus->vram = devm_ioremap(&pdev->dev, pci_resource_start(pdev, 0),
pci_resource_len(pdev, 0));
--
2.25.1
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [PATCH 40/44] drm/cirrus: Don't use drm_device->dev_private
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
(?)
@ 2020-04-03 13:58 ` Daniel Vetter
-1 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:58 UTC (permalink / raw)
To: DRI Development
Cc: Daniel Vetter, Intel Graphics Development, virtualization,
Eric Anholt, Noralf Trønnes, Thomas Zimmermann,
Daniel Vetter, Dave Airlie, Sam Ravnborg
Upcasting using a container_of macro is more typesafe, faster and
easier for the compiler to optimize.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Dave Airlie <airlied@redhat.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: "Noralf Trønnes" <noralf@tronnes.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Eric Anholt <eric@anholt.net>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: virtualization@lists.linux-foundation.org
---
drivers/gpu/drm/cirrus/cirrus.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/cirrus/cirrus.c b/drivers/gpu/drm/cirrus/cirrus.c
index 4b65637147ba..744a8e337e41 100644
--- a/drivers/gpu/drm/cirrus/cirrus.c
+++ b/drivers/gpu/drm/cirrus/cirrus.c
@@ -59,6 +59,8 @@ struct cirrus_device {
void __iomem *mmio;
};
+#define to_cirrus(_dev) container_of(_dev, struct cirrus_device, dev)
+
/* ------------------------------------------------------------------ */
/*
* The meat of this driver. The core passes us a mode and we have to program
@@ -311,7 +313,7 @@ static int cirrus_mode_set(struct cirrus_device *cirrus,
static int cirrus_fb_blit_rect(struct drm_framebuffer *fb,
struct drm_rect *rect)
{
- struct cirrus_device *cirrus = fb->dev->dev_private;
+ struct cirrus_device *cirrus = to_cirrus(fb->dev);
void *vmap;
int idx, ret;
@@ -436,7 +438,7 @@ static void cirrus_pipe_enable(struct drm_simple_display_pipe *pipe,
struct drm_crtc_state *crtc_state,
struct drm_plane_state *plane_state)
{
- struct cirrus_device *cirrus = pipe->crtc.dev->dev_private;
+ struct cirrus_device *cirrus = to_cirrus(pipe->crtc.dev);
cirrus_mode_set(cirrus, &crtc_state->mode, plane_state->fb);
cirrus_fb_blit_fullscreen(plane_state->fb);
@@ -445,7 +447,7 @@ static void cirrus_pipe_enable(struct drm_simple_display_pipe *pipe,
static void cirrus_pipe_update(struct drm_simple_display_pipe *pipe,
struct drm_plane_state *old_state)
{
- struct cirrus_device *cirrus = pipe->crtc.dev->dev_private;
+ struct cirrus_device *cirrus = to_cirrus(pipe->crtc.dev);
struct drm_plane_state *state = pipe->plane.state;
struct drm_crtc *crtc = &pipe->crtc;
struct drm_rect rect;
@@ -573,7 +575,6 @@ static int cirrus_pci_probe(struct pci_dev *pdev,
return PTR_ERR(cirrus);
dev = &cirrus->dev;
- dev->dev_private = cirrus;
cirrus->vram = devm_ioremap(&pdev->dev, pci_resource_start(pdev, 0),
pci_resource_len(pdev, 0));
--
2.25.1
_______________________________________________
Virtualization mailing list
Virtualization@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/virtualization
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [PATCH 40/44] drm/cirrus: Don't use drm_device->dev_private
@ 2020-04-03 13:58 ` Daniel Vetter
0 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:58 UTC (permalink / raw)
To: DRI Development
Cc: Daniel Vetter, Intel Graphics Development, virtualization,
Gerd Hoffmann, Thomas Zimmermann, Daniel Vetter, Dave Airlie,
Sam Ravnborg
Upcasting using a container_of macro is more typesafe, faster and
easier for the compiler to optimize.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Dave Airlie <airlied@redhat.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: "Noralf Trønnes" <noralf@tronnes.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Eric Anholt <eric@anholt.net>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: virtualization@lists.linux-foundation.org
---
drivers/gpu/drm/cirrus/cirrus.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/cirrus/cirrus.c b/drivers/gpu/drm/cirrus/cirrus.c
index 4b65637147ba..744a8e337e41 100644
--- a/drivers/gpu/drm/cirrus/cirrus.c
+++ b/drivers/gpu/drm/cirrus/cirrus.c
@@ -59,6 +59,8 @@ struct cirrus_device {
void __iomem *mmio;
};
+#define to_cirrus(_dev) container_of(_dev, struct cirrus_device, dev)
+
/* ------------------------------------------------------------------ */
/*
* The meat of this driver. The core passes us a mode and we have to program
@@ -311,7 +313,7 @@ static int cirrus_mode_set(struct cirrus_device *cirrus,
static int cirrus_fb_blit_rect(struct drm_framebuffer *fb,
struct drm_rect *rect)
{
- struct cirrus_device *cirrus = fb->dev->dev_private;
+ struct cirrus_device *cirrus = to_cirrus(fb->dev);
void *vmap;
int idx, ret;
@@ -436,7 +438,7 @@ static void cirrus_pipe_enable(struct drm_simple_display_pipe *pipe,
struct drm_crtc_state *crtc_state,
struct drm_plane_state *plane_state)
{
- struct cirrus_device *cirrus = pipe->crtc.dev->dev_private;
+ struct cirrus_device *cirrus = to_cirrus(pipe->crtc.dev);
cirrus_mode_set(cirrus, &crtc_state->mode, plane_state->fb);
cirrus_fb_blit_fullscreen(plane_state->fb);
@@ -445,7 +447,7 @@ static void cirrus_pipe_enable(struct drm_simple_display_pipe *pipe,
static void cirrus_pipe_update(struct drm_simple_display_pipe *pipe,
struct drm_plane_state *old_state)
{
- struct cirrus_device *cirrus = pipe->crtc.dev->dev_private;
+ struct cirrus_device *cirrus = to_cirrus(pipe->crtc.dev);
struct drm_plane_state *state = pipe->plane.state;
struct drm_crtc *crtc = &pipe->crtc;
struct drm_rect rect;
@@ -573,7 +575,6 @@ static int cirrus_pci_probe(struct pci_dev *pdev,
return PTR_ERR(cirrus);
dev = &cirrus->dev;
- dev->dev_private = cirrus;
cirrus->vram = devm_ioremap(&pdev->dev, pci_resource_start(pdev, 0),
pci_resource_len(pdev, 0));
--
2.25.1
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dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [Intel-gfx] [PATCH 40/44] drm/cirrus: Don't use drm_device->dev_private
@ 2020-04-03 13:58 ` Daniel Vetter
0 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:58 UTC (permalink / raw)
To: DRI Development
Cc: Daniel Vetter, Intel Graphics Development, virtualization,
Eric Anholt, Noralf Trønnes, Gerd Hoffmann,
Thomas Zimmermann, Daniel Vetter, Dave Airlie, Sam Ravnborg
Upcasting using a container_of macro is more typesafe, faster and
easier for the compiler to optimize.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Dave Airlie <airlied@redhat.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: "Noralf Trønnes" <noralf@tronnes.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Eric Anholt <eric@anholt.net>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: virtualization@lists.linux-foundation.org
---
drivers/gpu/drm/cirrus/cirrus.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/cirrus/cirrus.c b/drivers/gpu/drm/cirrus/cirrus.c
index 4b65637147ba..744a8e337e41 100644
--- a/drivers/gpu/drm/cirrus/cirrus.c
+++ b/drivers/gpu/drm/cirrus/cirrus.c
@@ -59,6 +59,8 @@ struct cirrus_device {
void __iomem *mmio;
};
+#define to_cirrus(_dev) container_of(_dev, struct cirrus_device, dev)
+
/* ------------------------------------------------------------------ */
/*
* The meat of this driver. The core passes us a mode and we have to program
@@ -311,7 +313,7 @@ static int cirrus_mode_set(struct cirrus_device *cirrus,
static int cirrus_fb_blit_rect(struct drm_framebuffer *fb,
struct drm_rect *rect)
{
- struct cirrus_device *cirrus = fb->dev->dev_private;
+ struct cirrus_device *cirrus = to_cirrus(fb->dev);
void *vmap;
int idx, ret;
@@ -436,7 +438,7 @@ static void cirrus_pipe_enable(struct drm_simple_display_pipe *pipe,
struct drm_crtc_state *crtc_state,
struct drm_plane_state *plane_state)
{
- struct cirrus_device *cirrus = pipe->crtc.dev->dev_private;
+ struct cirrus_device *cirrus = to_cirrus(pipe->crtc.dev);
cirrus_mode_set(cirrus, &crtc_state->mode, plane_state->fb);
cirrus_fb_blit_fullscreen(plane_state->fb);
@@ -445,7 +447,7 @@ static void cirrus_pipe_enable(struct drm_simple_display_pipe *pipe,
static void cirrus_pipe_update(struct drm_simple_display_pipe *pipe,
struct drm_plane_state *old_state)
{
- struct cirrus_device *cirrus = pipe->crtc.dev->dev_private;
+ struct cirrus_device *cirrus = to_cirrus(pipe->crtc.dev);
struct drm_plane_state *state = pipe->plane.state;
struct drm_crtc *crtc = &pipe->crtc;
struct drm_rect rect;
@@ -573,7 +575,6 @@ static int cirrus_pci_probe(struct pci_dev *pdev,
return PTR_ERR(cirrus);
dev = &cirrus->dev;
- dev->dev_private = cirrus;
cirrus->vram = devm_ioremap(&pdev->dev, pci_resource_start(pdev, 0),
pci_resource_len(pdev, 0));
--
2.25.1
_______________________________________________
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Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [PATCH 41/44] drm/i915: Use devm_drm_dev_alloc
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-03 13:58 ` Daniel Vetter
-1 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:58 UTC (permalink / raw)
To: DRI Development; +Cc: Daniel Vetter, Intel Graphics Development, Daniel Vetter
Luckily we're already well set up in the main driver, with
drm_dev_put() being the last thing in both the unload error case and
the pci remove function.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
---
drivers/gpu/drm/i915/i915_drv.c | 17 ++++-------------
drivers/gpu/drm/i915/i915_pci.c | 2 --
2 files changed, 4 insertions(+), 15 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index a7a3b4b98572..9c0ff25c5d41 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -879,19 +879,11 @@ i915_driver_create(struct pci_dev *pdev, const struct pci_device_id *ent)
(struct intel_device_info *)ent->driver_data;
struct intel_device_info *device_info;
struct drm_i915_private *i915;
- int err;
- i915 = kzalloc(sizeof(*i915), GFP_KERNEL);
- if (!i915)
- return ERR_PTR(-ENOMEM);
-
- err = drm_dev_init(&i915->drm, &driver, &pdev->dev);
- if (err) {
- kfree(i915);
- return ERR_PTR(err);
- }
-
- drmm_add_final_kfree(&i915->drm, i915);
+ i915 = devm_drm_dev_alloc(&pdev->dev, &driver,
+ struct drm_i915_private, drm);
+ if (IS_ERR(i915))
+ return i915;
i915->drm.pdev = pdev;
pci_set_drvdata(pdev, i915);
@@ -1008,7 +1000,6 @@ int i915_driver_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
pci_disable_device(pdev);
out_fini:
i915_probe_error(i915, "Device initialization failed (%d)\n", ret);
- drm_dev_put(&i915->drm);
return ret;
}
diff --git a/drivers/gpu/drm/i915/i915_pci.c b/drivers/gpu/drm/i915/i915_pci.c
index 2c80a0194c80..0f8b439d6fd5 100644
--- a/drivers/gpu/drm/i915/i915_pci.c
+++ b/drivers/gpu/drm/i915/i915_pci.c
@@ -920,8 +920,6 @@ static void i915_pci_remove(struct pci_dev *pdev)
i915_driver_remove(i915);
pci_set_drvdata(pdev, NULL);
-
- drm_dev_put(&i915->drm);
}
/* is device_id present in comma separated list of ids */
--
2.25.1
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dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [Intel-gfx] [PATCH 41/44] drm/i915: Use devm_drm_dev_alloc
@ 2020-04-03 13:58 ` Daniel Vetter
0 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:58 UTC (permalink / raw)
To: DRI Development; +Cc: Daniel Vetter, Intel Graphics Development, Daniel Vetter
Luckily we're already well set up in the main driver, with
drm_dev_put() being the last thing in both the unload error case and
the pci remove function.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
---
drivers/gpu/drm/i915/i915_drv.c | 17 ++++-------------
drivers/gpu/drm/i915/i915_pci.c | 2 --
2 files changed, 4 insertions(+), 15 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index a7a3b4b98572..9c0ff25c5d41 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -879,19 +879,11 @@ i915_driver_create(struct pci_dev *pdev, const struct pci_device_id *ent)
(struct intel_device_info *)ent->driver_data;
struct intel_device_info *device_info;
struct drm_i915_private *i915;
- int err;
- i915 = kzalloc(sizeof(*i915), GFP_KERNEL);
- if (!i915)
- return ERR_PTR(-ENOMEM);
-
- err = drm_dev_init(&i915->drm, &driver, &pdev->dev);
- if (err) {
- kfree(i915);
- return ERR_PTR(err);
- }
-
- drmm_add_final_kfree(&i915->drm, i915);
+ i915 = devm_drm_dev_alloc(&pdev->dev, &driver,
+ struct drm_i915_private, drm);
+ if (IS_ERR(i915))
+ return i915;
i915->drm.pdev = pdev;
pci_set_drvdata(pdev, i915);
@@ -1008,7 +1000,6 @@ int i915_driver_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
pci_disable_device(pdev);
out_fini:
i915_probe_error(i915, "Device initialization failed (%d)\n", ret);
- drm_dev_put(&i915->drm);
return ret;
}
diff --git a/drivers/gpu/drm/i915/i915_pci.c b/drivers/gpu/drm/i915/i915_pci.c
index 2c80a0194c80..0f8b439d6fd5 100644
--- a/drivers/gpu/drm/i915/i915_pci.c
+++ b/drivers/gpu/drm/i915/i915_pci.c
@@ -920,8 +920,6 @@ static void i915_pci_remove(struct pci_dev *pdev)
i915_driver_remove(i915);
pci_set_drvdata(pdev, NULL);
-
- drm_dev_put(&i915->drm);
}
/* is device_id present in comma separated list of ids */
--
2.25.1
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Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [PATCH 42/44] drm/i915/selftest: Create mock_destroy_device
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-03 13:58 ` Daniel Vetter
-1 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:58 UTC (permalink / raw)
To: DRI Development; +Cc: Daniel Vetter, Intel Graphics Development, Daniel Vetter
Just some prep work before we rework the lifetime handling, which
requires replacing all the drm_dev_put in selftests by something else.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
---
drivers/gpu/drm/i915/gem/selftests/huge_pages.c | 2 +-
drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c | 2 +-
drivers/gpu/drm/i915/gem/selftests/i915_gem_dmabuf.c | 2 +-
drivers/gpu/drm/i915/gem/selftests/i915_gem_object.c | 2 +-
drivers/gpu/drm/i915/gem/selftests/i915_gem_phys.c | 2 +-
drivers/gpu/drm/i915/gt/selftest_timeline.c | 2 +-
drivers/gpu/drm/i915/selftests/i915_gem_evict.c | 2 +-
drivers/gpu/drm/i915/selftests/i915_gem_gtt.c | 2 +-
drivers/gpu/drm/i915/selftests/i915_request.c | 2 +-
drivers/gpu/drm/i915/selftests/i915_vma.c | 2 +-
drivers/gpu/drm/i915/selftests/intel_memory_region.c | 2 +-
drivers/gpu/drm/i915/selftests/mock_gem_device.c | 2 +-
drivers/gpu/drm/i915/selftests/mock_gem_device.h | 5 +++++
13 files changed, 17 insertions(+), 12 deletions(-)
diff --git a/drivers/gpu/drm/i915/gem/selftests/huge_pages.c b/drivers/gpu/drm/i915/gem/selftests/huge_pages.c
index 2d0fd50c5312..d19bb011fc6b 100644
--- a/drivers/gpu/drm/i915/gem/selftests/huge_pages.c
+++ b/drivers/gpu/drm/i915/gem/selftests/huge_pages.c
@@ -1789,7 +1789,7 @@ int i915_gem_huge_page_mock_selftests(void)
i915_vm_put(&ppgtt->vm);
out_unlock:
- drm_dev_put(&dev_priv->drm);
+ mock_destroy_device(dev_priv);
return err;
}
diff --git a/drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c b/drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c
index f4f933240b39..d9d96d23e37e 100644
--- a/drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c
+++ b/drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c
@@ -1986,7 +1986,7 @@ int i915_gem_context_mock_selftests(void)
err = i915_subtests(tests, i915);
- drm_dev_put(&i915->drm);
+ mock_destroy_device(i915);
return err;
}
diff --git a/drivers/gpu/drm/i915/gem/selftests/i915_gem_dmabuf.c b/drivers/gpu/drm/i915/gem/selftests/i915_gem_dmabuf.c
index 2a52b92586b9..0845ce1ae37c 100644
--- a/drivers/gpu/drm/i915/gem/selftests/i915_gem_dmabuf.c
+++ b/drivers/gpu/drm/i915/gem/selftests/i915_gem_dmabuf.c
@@ -272,7 +272,7 @@ int i915_gem_dmabuf_mock_selftests(void)
err = i915_subtests(tests, i915);
- drm_dev_put(&i915->drm);
+ mock_destroy_device(i915);
return err;
}
diff --git a/drivers/gpu/drm/i915/gem/selftests/i915_gem_object.c b/drivers/gpu/drm/i915/gem/selftests/i915_gem_object.c
index 2b6db6f799de..085644edebfc 100644
--- a/drivers/gpu/drm/i915/gem/selftests/i915_gem_object.c
+++ b/drivers/gpu/drm/i915/gem/selftests/i915_gem_object.c
@@ -85,7 +85,7 @@ int i915_gem_object_mock_selftests(void)
err = i915_subtests(tests, i915);
- drm_dev_put(&i915->drm);
+ mock_destroy_device(i915);
return err;
}
diff --git a/drivers/gpu/drm/i915/gem/selftests/i915_gem_phys.c b/drivers/gpu/drm/i915/gem/selftests/i915_gem_phys.c
index 34932871b3a5..2a9709eb5a42 100644
--- a/drivers/gpu/drm/i915/gem/selftests/i915_gem_phys.c
+++ b/drivers/gpu/drm/i915/gem/selftests/i915_gem_phys.c
@@ -73,6 +73,6 @@ int i915_gem_phys_mock_selftests(void)
err = i915_subtests(tests, i915);
- drm_dev_put(&i915->drm);
+ mock_destroy_device(i915);
return err;
}
diff --git a/drivers/gpu/drm/i915/gt/selftest_timeline.c b/drivers/gpu/drm/i915/gt/selftest_timeline.c
index c2578a0f2f14..1c0865227714 100644
--- a/drivers/gpu/drm/i915/gt/selftest_timeline.c
+++ b/drivers/gpu/drm/i915/gt/selftest_timeline.c
@@ -157,7 +157,7 @@ static int mock_hwsp_freelist(void *arg)
__mock_hwsp_record(&state, na, NULL);
kfree(state.history);
err_put:
- drm_dev_put(&i915->drm);
+ mock_destroy_device(i915);
return err;
}
diff --git a/drivers/gpu/drm/i915/selftests/i915_gem_evict.c b/drivers/gpu/drm/i915/selftests/i915_gem_evict.c
index 028baae9631f..f88473d396f4 100644
--- a/drivers/gpu/drm/i915/selftests/i915_gem_evict.c
+++ b/drivers/gpu/drm/i915/selftests/i915_gem_evict.c
@@ -536,7 +536,7 @@ int i915_gem_evict_mock_selftests(void)
with_intel_runtime_pm(&i915->runtime_pm, wakeref)
err = i915_subtests(tests, &i915->gt);
- drm_dev_put(&i915->drm);
+ mock_destroy_device(i915);
return err;
}
diff --git a/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c b/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c
index 5d2a02fcf595..035e4f77f06f 100644
--- a/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c
@@ -1714,7 +1714,7 @@ int i915_gem_gtt_mock_selftests(void)
mock_fini_ggtt(ggtt);
kfree(ggtt);
out_put:
- drm_dev_put(&i915->drm);
+ mock_destroy_device(i915);
return err;
}
diff --git a/drivers/gpu/drm/i915/selftests/i915_request.c b/drivers/gpu/drm/i915/selftests/i915_request.c
index 1dab0360f76a..6bc6a2fc83ab 100644
--- a/drivers/gpu/drm/i915/selftests/i915_request.c
+++ b/drivers/gpu/drm/i915/selftests/i915_request.c
@@ -521,7 +521,7 @@ int i915_request_mock_selftests(void)
with_intel_runtime_pm(&i915->runtime_pm, wakeref)
err = i915_subtests(tests, i915);
- drm_dev_put(&i915->drm);
+ mock_destroy_device(i915);
return err;
}
diff --git a/drivers/gpu/drm/i915/selftests/i915_vma.c b/drivers/gpu/drm/i915/selftests/i915_vma.c
index 58b5f40a07dd..7d51cc2da36f 100644
--- a/drivers/gpu/drm/i915/selftests/i915_vma.c
+++ b/drivers/gpu/drm/i915/selftests/i915_vma.c
@@ -841,7 +841,7 @@ int i915_vma_mock_selftests(void)
mock_fini_ggtt(ggtt);
kfree(ggtt);
out_put:
- drm_dev_put(&i915->drm);
+ mock_destroy_device(i915);
return err;
}
diff --git a/drivers/gpu/drm/i915/selftests/intel_memory_region.c b/drivers/gpu/drm/i915/selftests/intel_memory_region.c
index 6e80d99048e4..5226767d5384 100644
--- a/drivers/gpu/drm/i915/selftests/intel_memory_region.c
+++ b/drivers/gpu/drm/i915/selftests/intel_memory_region.c
@@ -791,7 +791,7 @@ int intel_memory_region_mock_selftests(void)
intel_memory_region_put(mem);
out_unref:
- drm_dev_put(&i915->drm);
+ mock_destroy_device(i915);
return err;
}
diff --git a/drivers/gpu/drm/i915/selftests/mock_gem_device.c b/drivers/gpu/drm/i915/selftests/mock_gem_device.c
index 9b105b811f1f..03607647cdeb 100644
--- a/drivers/gpu/drm/i915/selftests/mock_gem_device.c
+++ b/drivers/gpu/drm/i915/selftests/mock_gem_device.c
@@ -214,7 +214,7 @@ struct drm_i915_private *mock_gem_device(void)
intel_gt_driver_late_release(&i915->gt);
intel_memory_regions_driver_release(i915);
drm_mode_config_cleanup(&i915->drm);
- drm_dev_put(&i915->drm);
+ mock_destroy_device(i915);
return NULL;
}
diff --git a/drivers/gpu/drm/i915/selftests/mock_gem_device.h b/drivers/gpu/drm/i915/selftests/mock_gem_device.h
index b5dc4e394555..2e3c7585a7bb 100644
--- a/drivers/gpu/drm/i915/selftests/mock_gem_device.h
+++ b/drivers/gpu/drm/i915/selftests/mock_gem_device.h
@@ -7,4 +7,9 @@ struct drm_i915_private;
struct drm_i915_private *mock_gem_device(void);
void mock_device_flush(struct drm_i915_private *i915);
+static inline void mock_destroy_device(struct drm_i915_private *i915)
+{
+ drm_dev_put(&i915->drm);
+}
+
#endif /* !__MOCK_GEM_DEVICE_H__ */
--
2.25.1
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https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [Intel-gfx] [PATCH 42/44] drm/i915/selftest: Create mock_destroy_device
@ 2020-04-03 13:58 ` Daniel Vetter
0 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:58 UTC (permalink / raw)
To: DRI Development; +Cc: Daniel Vetter, Intel Graphics Development, Daniel Vetter
Just some prep work before we rework the lifetime handling, which
requires replacing all the drm_dev_put in selftests by something else.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
---
drivers/gpu/drm/i915/gem/selftests/huge_pages.c | 2 +-
drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c | 2 +-
drivers/gpu/drm/i915/gem/selftests/i915_gem_dmabuf.c | 2 +-
drivers/gpu/drm/i915/gem/selftests/i915_gem_object.c | 2 +-
drivers/gpu/drm/i915/gem/selftests/i915_gem_phys.c | 2 +-
drivers/gpu/drm/i915/gt/selftest_timeline.c | 2 +-
drivers/gpu/drm/i915/selftests/i915_gem_evict.c | 2 +-
drivers/gpu/drm/i915/selftests/i915_gem_gtt.c | 2 +-
drivers/gpu/drm/i915/selftests/i915_request.c | 2 +-
drivers/gpu/drm/i915/selftests/i915_vma.c | 2 +-
drivers/gpu/drm/i915/selftests/intel_memory_region.c | 2 +-
drivers/gpu/drm/i915/selftests/mock_gem_device.c | 2 +-
drivers/gpu/drm/i915/selftests/mock_gem_device.h | 5 +++++
13 files changed, 17 insertions(+), 12 deletions(-)
diff --git a/drivers/gpu/drm/i915/gem/selftests/huge_pages.c b/drivers/gpu/drm/i915/gem/selftests/huge_pages.c
index 2d0fd50c5312..d19bb011fc6b 100644
--- a/drivers/gpu/drm/i915/gem/selftests/huge_pages.c
+++ b/drivers/gpu/drm/i915/gem/selftests/huge_pages.c
@@ -1789,7 +1789,7 @@ int i915_gem_huge_page_mock_selftests(void)
i915_vm_put(&ppgtt->vm);
out_unlock:
- drm_dev_put(&dev_priv->drm);
+ mock_destroy_device(dev_priv);
return err;
}
diff --git a/drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c b/drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c
index f4f933240b39..d9d96d23e37e 100644
--- a/drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c
+++ b/drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c
@@ -1986,7 +1986,7 @@ int i915_gem_context_mock_selftests(void)
err = i915_subtests(tests, i915);
- drm_dev_put(&i915->drm);
+ mock_destroy_device(i915);
return err;
}
diff --git a/drivers/gpu/drm/i915/gem/selftests/i915_gem_dmabuf.c b/drivers/gpu/drm/i915/gem/selftests/i915_gem_dmabuf.c
index 2a52b92586b9..0845ce1ae37c 100644
--- a/drivers/gpu/drm/i915/gem/selftests/i915_gem_dmabuf.c
+++ b/drivers/gpu/drm/i915/gem/selftests/i915_gem_dmabuf.c
@@ -272,7 +272,7 @@ int i915_gem_dmabuf_mock_selftests(void)
err = i915_subtests(tests, i915);
- drm_dev_put(&i915->drm);
+ mock_destroy_device(i915);
return err;
}
diff --git a/drivers/gpu/drm/i915/gem/selftests/i915_gem_object.c b/drivers/gpu/drm/i915/gem/selftests/i915_gem_object.c
index 2b6db6f799de..085644edebfc 100644
--- a/drivers/gpu/drm/i915/gem/selftests/i915_gem_object.c
+++ b/drivers/gpu/drm/i915/gem/selftests/i915_gem_object.c
@@ -85,7 +85,7 @@ int i915_gem_object_mock_selftests(void)
err = i915_subtests(tests, i915);
- drm_dev_put(&i915->drm);
+ mock_destroy_device(i915);
return err;
}
diff --git a/drivers/gpu/drm/i915/gem/selftests/i915_gem_phys.c b/drivers/gpu/drm/i915/gem/selftests/i915_gem_phys.c
index 34932871b3a5..2a9709eb5a42 100644
--- a/drivers/gpu/drm/i915/gem/selftests/i915_gem_phys.c
+++ b/drivers/gpu/drm/i915/gem/selftests/i915_gem_phys.c
@@ -73,6 +73,6 @@ int i915_gem_phys_mock_selftests(void)
err = i915_subtests(tests, i915);
- drm_dev_put(&i915->drm);
+ mock_destroy_device(i915);
return err;
}
diff --git a/drivers/gpu/drm/i915/gt/selftest_timeline.c b/drivers/gpu/drm/i915/gt/selftest_timeline.c
index c2578a0f2f14..1c0865227714 100644
--- a/drivers/gpu/drm/i915/gt/selftest_timeline.c
+++ b/drivers/gpu/drm/i915/gt/selftest_timeline.c
@@ -157,7 +157,7 @@ static int mock_hwsp_freelist(void *arg)
__mock_hwsp_record(&state, na, NULL);
kfree(state.history);
err_put:
- drm_dev_put(&i915->drm);
+ mock_destroy_device(i915);
return err;
}
diff --git a/drivers/gpu/drm/i915/selftests/i915_gem_evict.c b/drivers/gpu/drm/i915/selftests/i915_gem_evict.c
index 028baae9631f..f88473d396f4 100644
--- a/drivers/gpu/drm/i915/selftests/i915_gem_evict.c
+++ b/drivers/gpu/drm/i915/selftests/i915_gem_evict.c
@@ -536,7 +536,7 @@ int i915_gem_evict_mock_selftests(void)
with_intel_runtime_pm(&i915->runtime_pm, wakeref)
err = i915_subtests(tests, &i915->gt);
- drm_dev_put(&i915->drm);
+ mock_destroy_device(i915);
return err;
}
diff --git a/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c b/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c
index 5d2a02fcf595..035e4f77f06f 100644
--- a/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c
@@ -1714,7 +1714,7 @@ int i915_gem_gtt_mock_selftests(void)
mock_fini_ggtt(ggtt);
kfree(ggtt);
out_put:
- drm_dev_put(&i915->drm);
+ mock_destroy_device(i915);
return err;
}
diff --git a/drivers/gpu/drm/i915/selftests/i915_request.c b/drivers/gpu/drm/i915/selftests/i915_request.c
index 1dab0360f76a..6bc6a2fc83ab 100644
--- a/drivers/gpu/drm/i915/selftests/i915_request.c
+++ b/drivers/gpu/drm/i915/selftests/i915_request.c
@@ -521,7 +521,7 @@ int i915_request_mock_selftests(void)
with_intel_runtime_pm(&i915->runtime_pm, wakeref)
err = i915_subtests(tests, i915);
- drm_dev_put(&i915->drm);
+ mock_destroy_device(i915);
return err;
}
diff --git a/drivers/gpu/drm/i915/selftests/i915_vma.c b/drivers/gpu/drm/i915/selftests/i915_vma.c
index 58b5f40a07dd..7d51cc2da36f 100644
--- a/drivers/gpu/drm/i915/selftests/i915_vma.c
+++ b/drivers/gpu/drm/i915/selftests/i915_vma.c
@@ -841,7 +841,7 @@ int i915_vma_mock_selftests(void)
mock_fini_ggtt(ggtt);
kfree(ggtt);
out_put:
- drm_dev_put(&i915->drm);
+ mock_destroy_device(i915);
return err;
}
diff --git a/drivers/gpu/drm/i915/selftests/intel_memory_region.c b/drivers/gpu/drm/i915/selftests/intel_memory_region.c
index 6e80d99048e4..5226767d5384 100644
--- a/drivers/gpu/drm/i915/selftests/intel_memory_region.c
+++ b/drivers/gpu/drm/i915/selftests/intel_memory_region.c
@@ -791,7 +791,7 @@ int intel_memory_region_mock_selftests(void)
intel_memory_region_put(mem);
out_unref:
- drm_dev_put(&i915->drm);
+ mock_destroy_device(i915);
return err;
}
diff --git a/drivers/gpu/drm/i915/selftests/mock_gem_device.c b/drivers/gpu/drm/i915/selftests/mock_gem_device.c
index 9b105b811f1f..03607647cdeb 100644
--- a/drivers/gpu/drm/i915/selftests/mock_gem_device.c
+++ b/drivers/gpu/drm/i915/selftests/mock_gem_device.c
@@ -214,7 +214,7 @@ struct drm_i915_private *mock_gem_device(void)
intel_gt_driver_late_release(&i915->gt);
intel_memory_regions_driver_release(i915);
drm_mode_config_cleanup(&i915->drm);
- drm_dev_put(&i915->drm);
+ mock_destroy_device(i915);
return NULL;
}
diff --git a/drivers/gpu/drm/i915/selftests/mock_gem_device.h b/drivers/gpu/drm/i915/selftests/mock_gem_device.h
index b5dc4e394555..2e3c7585a7bb 100644
--- a/drivers/gpu/drm/i915/selftests/mock_gem_device.h
+++ b/drivers/gpu/drm/i915/selftests/mock_gem_device.h
@@ -7,4 +7,9 @@ struct drm_i915_private;
struct drm_i915_private *mock_gem_device(void);
void mock_device_flush(struct drm_i915_private *i915);
+static inline void mock_destroy_device(struct drm_i915_private *i915)
+{
+ drm_dev_put(&i915->drm);
+}
+
#endif /* !__MOCK_GEM_DEVICE_H__ */
--
2.25.1
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [PATCH 43/44] drm/i915/selftests: align more to real device lifetimes
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-03 13:58 ` Daniel Vetter
-1 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:58 UTC (permalink / raw)
To: DRI Development; +Cc: Daniel Vetter, Intel Graphics Development, Daniel Vetter
The big change is device_add so that device_del can auto-cleanup
devres resources. This allows us to use devm_drm_dev_alloc, which
removes the last user of drm_dev_init.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
---
.../gpu/drm/i915/selftests/mock_gem_device.c | 31 +++++++++----------
.../gpu/drm/i915/selftests/mock_gem_device.h | 2 +-
2 files changed, 16 insertions(+), 17 deletions(-)
diff --git a/drivers/gpu/drm/i915/selftests/mock_gem_device.c b/drivers/gpu/drm/i915/selftests/mock_gem_device.c
index 03607647cdeb..ea73d1f7cf12 100644
--- a/drivers/gpu/drm/i915/selftests/mock_gem_device.c
+++ b/drivers/gpu/drm/i915/selftests/mock_gem_device.c
@@ -123,12 +123,6 @@ struct drm_i915_private *mock_gem_device(void)
pdev = kzalloc(sizeof(*pdev), GFP_KERNEL);
if (!pdev)
return NULL;
- i915 = kzalloc(sizeof(*i915), GFP_KERNEL);
- if (!i915) {
- kfree(pdev);
- return NULL;
- }
-
device_initialize(&pdev->dev);
pdev->class = PCI_BASE_CLASS_DISPLAY << 16;
pdev->dev.release = release_dev;
@@ -139,8 +133,23 @@ struct drm_i915_private *mock_gem_device(void)
/* hack to disable iommu for the fake device; force identity mapping */
pdev->dev.archdata.iommu = (void *)-1;
#endif
+ err = device_add(&pdev->dev);
+ if (err) {
+ kfree(pdev);
+ return NULL;
+ }
+
+ i915 = devm_drm_dev_alloc(&pdev->dev, &mock_driver,
+ struct drm_i915_private, drm);
+ if (err) {
+ pr_err("Failed to allocate mock GEM device: err=%d\n", err);
+ put_device(&pdev->dev);
+
+ return NULL;
+ }
pci_set_drvdata(pdev, i915);
+ i915->drm.pdev = pdev;
dev_pm_domain_set(&pdev->dev, &pm_domain);
pm_runtime_enable(&pdev->dev);
@@ -148,16 +157,6 @@ struct drm_i915_private *mock_gem_device(void)
if (pm_runtime_enabled(&pdev->dev))
WARN_ON(pm_runtime_get_sync(&pdev->dev));
- err = drm_dev_init(&i915->drm, &mock_driver, &pdev->dev);
- if (err) {
- pr_err("Failed to initialise mock GEM device: err=%d\n", err);
- put_device(&pdev->dev);
- kfree(i915);
-
- return NULL;
- }
- i915->drm.pdev = pdev;
- drmm_add_final_kfree(&i915->drm, i915);
intel_runtime_pm_init_early(&i915->runtime_pm);
diff --git a/drivers/gpu/drm/i915/selftests/mock_gem_device.h b/drivers/gpu/drm/i915/selftests/mock_gem_device.h
index 2e3c7585a7bb..4f309a05c85a 100644
--- a/drivers/gpu/drm/i915/selftests/mock_gem_device.h
+++ b/drivers/gpu/drm/i915/selftests/mock_gem_device.h
@@ -9,7 +9,7 @@ void mock_device_flush(struct drm_i915_private *i915);
static inline void mock_destroy_device(struct drm_i915_private *i915)
{
- drm_dev_put(&i915->drm);
+ device_del(i915->drm.dev);
}
#endif /* !__MOCK_GEM_DEVICE_H__ */
--
2.25.1
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [Intel-gfx] [PATCH 43/44] drm/i915/selftests: align more to real device lifetimes
@ 2020-04-03 13:58 ` Daniel Vetter
0 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:58 UTC (permalink / raw)
To: DRI Development; +Cc: Daniel Vetter, Intel Graphics Development, Daniel Vetter
The big change is device_add so that device_del can auto-cleanup
devres resources. This allows us to use devm_drm_dev_alloc, which
removes the last user of drm_dev_init.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
---
.../gpu/drm/i915/selftests/mock_gem_device.c | 31 +++++++++----------
.../gpu/drm/i915/selftests/mock_gem_device.h | 2 +-
2 files changed, 16 insertions(+), 17 deletions(-)
diff --git a/drivers/gpu/drm/i915/selftests/mock_gem_device.c b/drivers/gpu/drm/i915/selftests/mock_gem_device.c
index 03607647cdeb..ea73d1f7cf12 100644
--- a/drivers/gpu/drm/i915/selftests/mock_gem_device.c
+++ b/drivers/gpu/drm/i915/selftests/mock_gem_device.c
@@ -123,12 +123,6 @@ struct drm_i915_private *mock_gem_device(void)
pdev = kzalloc(sizeof(*pdev), GFP_KERNEL);
if (!pdev)
return NULL;
- i915 = kzalloc(sizeof(*i915), GFP_KERNEL);
- if (!i915) {
- kfree(pdev);
- return NULL;
- }
-
device_initialize(&pdev->dev);
pdev->class = PCI_BASE_CLASS_DISPLAY << 16;
pdev->dev.release = release_dev;
@@ -139,8 +133,23 @@ struct drm_i915_private *mock_gem_device(void)
/* hack to disable iommu for the fake device; force identity mapping */
pdev->dev.archdata.iommu = (void *)-1;
#endif
+ err = device_add(&pdev->dev);
+ if (err) {
+ kfree(pdev);
+ return NULL;
+ }
+
+ i915 = devm_drm_dev_alloc(&pdev->dev, &mock_driver,
+ struct drm_i915_private, drm);
+ if (err) {
+ pr_err("Failed to allocate mock GEM device: err=%d\n", err);
+ put_device(&pdev->dev);
+
+ return NULL;
+ }
pci_set_drvdata(pdev, i915);
+ i915->drm.pdev = pdev;
dev_pm_domain_set(&pdev->dev, &pm_domain);
pm_runtime_enable(&pdev->dev);
@@ -148,16 +157,6 @@ struct drm_i915_private *mock_gem_device(void)
if (pm_runtime_enabled(&pdev->dev))
WARN_ON(pm_runtime_get_sync(&pdev->dev));
- err = drm_dev_init(&i915->drm, &mock_driver, &pdev->dev);
- if (err) {
- pr_err("Failed to initialise mock GEM device: err=%d\n", err);
- put_device(&pdev->dev);
- kfree(i915);
-
- return NULL;
- }
- i915->drm.pdev = pdev;
- drmm_add_final_kfree(&i915->drm, i915);
intel_runtime_pm_init_early(&i915->runtime_pm);
diff --git a/drivers/gpu/drm/i915/selftests/mock_gem_device.h b/drivers/gpu/drm/i915/selftests/mock_gem_device.h
index 2e3c7585a7bb..4f309a05c85a 100644
--- a/drivers/gpu/drm/i915/selftests/mock_gem_device.h
+++ b/drivers/gpu/drm/i915/selftests/mock_gem_device.h
@@ -9,7 +9,7 @@ void mock_device_flush(struct drm_i915_private *i915);
static inline void mock_destroy_device(struct drm_i915_private *i915)
{
- drm_dev_put(&i915->drm);
+ device_del(i915->drm.dev);
}
#endif /* !__MOCK_GEM_DEVICE_H__ */
--
2.25.1
_______________________________________________
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Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [PATCH 44/44] drm/managed: Cleanup of unused functions and polishing docs
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-03 13:58 ` Daniel Vetter
-1 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:58 UTC (permalink / raw)
To: DRI Development; +Cc: Daniel Vetter, Intel Graphics Development, Daniel Vetter
Following functions are only used internally, not by drivers:
- drm_dev_init
- devm_drm_dev_init
- drmm_add_final_kfree
Also, now that we have a very slick and polished way to allocate a
drm_device with devm_drm_dev_alloc, update all the docs to reflect the
new reality. Mostly this consists of deleting old and misleading
hints. Two main ones:
- it is no longer required that the drm_device base class is first in
the structure. devm_drm_dev_alloc can cope with it being anywhere
- obviously embedded no needs devm_drm_dev_alloc
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
---
.../driver-api/driver-model/devres.rst | 2 +-
drivers/gpu/drm/drm_drv.c | 119 ++++--------------
drivers/gpu/drm/drm_internal.h | 1 +
drivers/gpu/drm/drm_managed.c | 15 +--
include/drm/drm_device.h | 2 +-
include/drm/drm_drv.h | 20 +--
6 files changed, 34 insertions(+), 125 deletions(-)
diff --git a/Documentation/driver-api/driver-model/devres.rst b/Documentation/driver-api/driver-model/devres.rst
index 46c13780994c..74a4a3fa8c52 100644
--- a/Documentation/driver-api/driver-model/devres.rst
+++ b/Documentation/driver-api/driver-model/devres.rst
@@ -263,7 +263,7 @@ DMA
dmam_pool_destroy()
DRM
- devm_drm_dev_init()
+ devm_drm_dev_alloc()
GPIO
devm_gpiod_get()
diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c
index 9e60b784b3ac..64e20c630aa7 100644
--- a/drivers/gpu/drm/drm_drv.c
+++ b/drivers/gpu/drm/drm_drv.c
@@ -240,13 +240,13 @@ void drm_minor_release(struct drm_minor *minor)
* DOC: driver instance overview
*
* A device instance for a drm driver is represented by &struct drm_device. This
- * is initialized with drm_dev_init(), usually from bus-specific ->probe()
- * callbacks implemented by the driver. The driver then needs to initialize all
- * the various subsystems for the drm device like memory management, vblank
- * handling, modesetting support and intial output configuration plus obviously
- * initialize all the corresponding hardware bits. Finally when everything is up
- * and running and ready for userspace the device instance can be published
- * using drm_dev_register().
+ * is allocated and initialized with devm_drm_dev_alloc(), usually from
+ * bus-specific ->probe() callbacks implemented by the driver. The driver then
+ * needs to initialize all the various subsystems for the drm device like memory
+ * management, vblank handling, modesetting support and intial output
+ * configuration plus obviously initialize all the corresponding hardware bits.
+ * Finally when everything is up and running and ready for userspace the device
+ * instance can be published using drm_dev_register().
*
* There is also deprecated support for initalizing device instances using
* bus-specific helpers and the &drm_driver.load callback. But due to
@@ -274,7 +274,7 @@ void drm_minor_release(struct drm_minor *minor)
*
* The following example shows a typical structure of a DRM display driver.
* The example focus on the probe() function and the other functions that is
- * almost always present and serves as a demonstration of devm_drm_dev_init().
+ * almost always present and serves as a demonstration of devm_drm_dev_alloc().
*
* .. code-block:: c
*
@@ -294,22 +294,12 @@ void drm_minor_release(struct drm_minor *minor)
* struct drm_device *drm;
* int ret;
*
- * // devm_kzalloc() can't be used here because the drm_device '
- * // lifetime can exceed the device lifetime if driver unbind
- * // happens when userspace still has open file descriptors.
- * priv = kzalloc(sizeof(*priv), GFP_KERNEL);
- * if (!priv)
- * return -ENOMEM;
- *
+ * priv = devm_drm_dev_alloc(&pdev->dev, &driver_drm_driver,
+ * struct driver_device, drm);
+ * if (IS_ERR(priv))
+ * return PTR_ERR(priv);
* drm = &priv->drm;
*
- * ret = devm_drm_dev_init(&pdev->dev, drm, &driver_drm_driver);
- * if (ret) {
- * kfree(priv);
- * return ret;
- * }
- * drmm_add_final_kfree(drm, priv);
- *
* ret = drmm_mode_config_init(drm);
* if (ret)
* return ret;
@@ -550,9 +540,9 @@ static void drm_fs_inode_free(struct inode *inode)
* following guidelines apply:
*
* - The entire device initialization procedure should be run from the
- * &component_master_ops.master_bind callback, starting with drm_dev_init(),
- * then binding all components with component_bind_all() and finishing with
- * drm_dev_register().
+ * &component_master_ops.master_bind callback, starting with
+ * devm_drm_dev_alloc(), then binding all components with
+ * component_bind_all() and finishing with drm_dev_register().
*
* - The opaque pointer passed to all components through component_bind_all()
* should point at &struct drm_device of the device instance, not some driver
@@ -583,43 +573,9 @@ static void drm_dev_init_release(struct drm_device *dev, void *res)
drm_legacy_destroy_members(dev);
}
-/**
- * drm_dev_init - Initialise new DRM device
- * @dev: DRM device
- * @driver: DRM driver
- * @parent: Parent device object
- *
- * Initialize a new DRM device. No device registration is done.
- * Call drm_dev_register() to advertice the device to user space and register it
- * with other core subsystems. This should be done last in the device
- * initialization sequence to make sure userspace can't access an inconsistent
- * state.
- *
- * The initial ref-count of the object is 1. Use drm_dev_get() and
- * drm_dev_put() to take and drop further ref-counts.
- *
- * It is recommended that drivers embed &struct drm_device into their own device
- * structure.
- *
- * Drivers that do not want to allocate their own device struct
- * embedding &struct drm_device can call drm_dev_alloc() instead. For drivers
- * that do embed &struct drm_device it must be placed first in the overall
- * structure, and the overall structure must be allocated using kmalloc(): The
- * drm core's release function unconditionally calls kfree() on the @dev pointer
- * when the final reference is released. To override this behaviour, and so
- * allow embedding of the drm_device inside the driver's device struct at an
- * arbitrary offset, you must supply a &drm_driver.release callback and control
- * the finalization explicitly.
- *
- * Note that drivers must call drmm_add_final_kfree() after this function has
- * completed successfully.
- *
- * RETURNS:
- * 0 on success, or error code on failure.
- */
-int drm_dev_init(struct drm_device *dev,
- struct drm_driver *driver,
- struct device *parent)
+static int drm_dev_init(struct drm_device *dev,
+ struct drm_driver *driver,
+ struct device *parent)
{
int ret;
@@ -699,31 +655,15 @@ int drm_dev_init(struct drm_device *dev,
return ret;
}
-EXPORT_SYMBOL(drm_dev_init);
static void devm_drm_dev_init_release(void *data)
{
drm_dev_put(data);
}
-/**
- * devm_drm_dev_init - Resource managed drm_dev_init()
- * @parent: Parent device object
- * @dev: DRM device
- * @driver: DRM driver
- *
- * Managed drm_dev_init(). The DRM device initialized with this function is
- * automatically put on driver detach using drm_dev_put().
- *
- * Note that drivers must call drmm_add_final_kfree() after this function has
- * completed successfully.
- *
- * RETURNS:
- * 0 on success, or error code on failure.
- */
-int devm_drm_dev_init(struct device *parent,
- struct drm_device *dev,
- struct drm_driver *driver)
+static int devm_drm_dev_init(struct device *parent,
+ struct drm_device *dev,
+ struct drm_driver *driver)
{
int ret;
@@ -737,7 +677,6 @@ int devm_drm_dev_init(struct device *parent,
return ret;
}
-EXPORT_SYMBOL(devm_drm_dev_init);
void* __devm_drm_dev_alloc(struct device *parent, struct drm_driver *driver,
size_t size, size_t offset)
@@ -767,19 +706,9 @@ EXPORT_SYMBOL(__devm_drm_dev_alloc);
* @driver: DRM driver to allocate device for
* @parent: Parent device object
*
- * Allocate and initialize a new DRM device. No device registration is done.
- * Call drm_dev_register() to advertice the device to user space and register it
- * with other core subsystems. This should be done last in the device
- * initialization sequence to make sure userspace can't access an inconsistent
- * state.
- *
- * The initial ref-count of the object is 1. Use drm_dev_get() and
- * drm_dev_put() to take and drop further ref-counts.
- *
- * Note that for purely virtual devices @parent can be NULL.
- *
- * Drivers that wish to subclass or embed &struct drm_device into their
- * own struct should look at using drm_dev_init() instead.
+ * This is the deprecated version of devm_drm_dev_alloc(), which doesn not support
+ * subclassing through embedding the struct &drm_device in a driver private
+ * structure, and which does not support automatic cleanup through devres.
*
* RETURNS:
* Pointer to new DRM device, or ERR_PTR on failure.
diff --git a/drivers/gpu/drm/drm_internal.h b/drivers/gpu/drm/drm_internal.h
index 2470a352730b..79f11d3c525e 100644
--- a/drivers/gpu/drm/drm_internal.h
+++ b/drivers/gpu/drm/drm_internal.h
@@ -91,6 +91,7 @@ void drm_minor_release(struct drm_minor *minor);
/* drm_managed.c */
void drm_managed_release(struct drm_device *dev);
+void drmm_add_final_kfree(struct drm_device *dev, void *container);
/* drm_vblank.c */
void drm_vblank_disable_and_save(struct drm_device *dev, unsigned int pipe);
diff --git a/drivers/gpu/drm/drm_managed.c b/drivers/gpu/drm/drm_managed.c
index 9cebfe370a65..a2a0c5b7ab78 100644
--- a/drivers/gpu/drm/drm_managed.c
+++ b/drivers/gpu/drm/drm_managed.c
@@ -25,7 +25,7 @@
* be done directly with drmm_kmalloc() and the related functions. Everything
* will be released on the final drm_dev_put() in reverse order of how the
* release actions have been added and memory has been allocated since driver
- * loading started with drm_dev_init().
+ * loading started with devm_drm_dev_alloc().
*
* Note that release actions and managed memory can also be added and removed
* during the lifetime of the driver, all the functions are fully concurrent
@@ -123,18 +123,6 @@ static void add_dr(struct drm_device *dev, struct drmres *dr)
dr, dr->node.name, (unsigned long) dr->node.size);
}
-/**
- * drmm_add_final_kfree - add release action for the final kfree()
- * @dev: DRM device
- * @container: pointer to the kmalloc allocation containing @dev
- *
- * Since the allocation containing the struct &drm_device must be allocated
- * before it can be initialized with drm_dev_init() there's no way to allocate
- * that memory with drmm_kmalloc(). To side-step this chicken-egg problem the
- * pointer for this final kfree() must be specified by calling this function. It
- * will be released in the final drm_dev_put() for @dev, after all other release
- * actions installed through drmm_add_action() have been processed.
- */
void drmm_add_final_kfree(struct drm_device *dev, void *container)
{
WARN_ON(dev->managed.final_kfree);
@@ -142,7 +130,6 @@ void drmm_add_final_kfree(struct drm_device *dev, void *container)
WARN_ON(dev + 1 > (struct drm_device *) (container + ksize(container)));
dev->managed.final_kfree = container;
}
-EXPORT_SYMBOL(drmm_add_final_kfree);
int __drmm_add_action(struct drm_device *dev,
drmres_release_t action,
diff --git a/include/drm/drm_device.h b/include/drm/drm_device.h
index a55874db9dd4..ee9e20ce9b85 100644
--- a/include/drm/drm_device.h
+++ b/include/drm/drm_device.h
@@ -92,7 +92,7 @@ struct drm_device {
* NULL.
*
* Instead of using this pointer it is recommended that drivers use
- * drm_dev_init() and embed struct &drm_device in their larger
+ * devm_drm_dev_alloc() and embed struct &drm_device in their larger
* per-device structure.
*/
void *dev_private;
diff --git a/include/drm/drm_drv.h b/include/drm/drm_drv.h
index 26776be5a21e..2806cc5eae3a 100644
--- a/include/drm/drm_drv.h
+++ b/include/drm/drm_drv.h
@@ -163,13 +163,12 @@ struct drm_driver {
/**
* @load:
*
- * Backward-compatible driver callback to complete
- * initialization steps after the driver is registered. For
- * this reason, may suffer from race conditions and its use is
- * deprecated for new drivers. It is therefore only supported
- * for existing drivers not yet converted to the new scheme.
- * See drm_dev_init() and drm_dev_register() for proper and
- * race-free way to set up a &struct drm_device.
+ * Backward-compatible driver callback to complete initialization steps
+ * after the driver is registered. For this reason, may suffer from
+ * race conditions and its use is deprecated for new drivers. It is
+ * therefore only supported for existing drivers not yet converted to
+ * the new scheme. See devm_drm_dev_alloc() and drm_dev_register() for
+ * proper and race-free way to set up a &struct drm_device.
*
* This is deprecated, do not use!
*
@@ -619,13 +618,6 @@ struct drm_driver {
int dev_priv_size;
};
-int drm_dev_init(struct drm_device *dev,
- struct drm_driver *driver,
- struct device *parent);
-int devm_drm_dev_init(struct device *parent,
- struct drm_device *dev,
- struct drm_driver *driver);
-
void* __devm_drm_dev_alloc(struct device *parent, struct drm_driver *driver,
size_t size, size_t offset);
--
2.25.1
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^ permalink raw reply related [flat|nested] 262+ messages in thread
* [Intel-gfx] [PATCH 44/44] drm/managed: Cleanup of unused functions and polishing docs
@ 2020-04-03 13:58 ` Daniel Vetter
0 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 13:58 UTC (permalink / raw)
To: DRI Development; +Cc: Daniel Vetter, Intel Graphics Development, Daniel Vetter
Following functions are only used internally, not by drivers:
- drm_dev_init
- devm_drm_dev_init
- drmm_add_final_kfree
Also, now that we have a very slick and polished way to allocate a
drm_device with devm_drm_dev_alloc, update all the docs to reflect the
new reality. Mostly this consists of deleting old and misleading
hints. Two main ones:
- it is no longer required that the drm_device base class is first in
the structure. devm_drm_dev_alloc can cope with it being anywhere
- obviously embedded no needs devm_drm_dev_alloc
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
---
.../driver-api/driver-model/devres.rst | 2 +-
drivers/gpu/drm/drm_drv.c | 119 ++++--------------
drivers/gpu/drm/drm_internal.h | 1 +
drivers/gpu/drm/drm_managed.c | 15 +--
include/drm/drm_device.h | 2 +-
include/drm/drm_drv.h | 20 +--
6 files changed, 34 insertions(+), 125 deletions(-)
diff --git a/Documentation/driver-api/driver-model/devres.rst b/Documentation/driver-api/driver-model/devres.rst
index 46c13780994c..74a4a3fa8c52 100644
--- a/Documentation/driver-api/driver-model/devres.rst
+++ b/Documentation/driver-api/driver-model/devres.rst
@@ -263,7 +263,7 @@ DMA
dmam_pool_destroy()
DRM
- devm_drm_dev_init()
+ devm_drm_dev_alloc()
GPIO
devm_gpiod_get()
diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c
index 9e60b784b3ac..64e20c630aa7 100644
--- a/drivers/gpu/drm/drm_drv.c
+++ b/drivers/gpu/drm/drm_drv.c
@@ -240,13 +240,13 @@ void drm_minor_release(struct drm_minor *minor)
* DOC: driver instance overview
*
* A device instance for a drm driver is represented by &struct drm_device. This
- * is initialized with drm_dev_init(), usually from bus-specific ->probe()
- * callbacks implemented by the driver. The driver then needs to initialize all
- * the various subsystems for the drm device like memory management, vblank
- * handling, modesetting support and intial output configuration plus obviously
- * initialize all the corresponding hardware bits. Finally when everything is up
- * and running and ready for userspace the device instance can be published
- * using drm_dev_register().
+ * is allocated and initialized with devm_drm_dev_alloc(), usually from
+ * bus-specific ->probe() callbacks implemented by the driver. The driver then
+ * needs to initialize all the various subsystems for the drm device like memory
+ * management, vblank handling, modesetting support and intial output
+ * configuration plus obviously initialize all the corresponding hardware bits.
+ * Finally when everything is up and running and ready for userspace the device
+ * instance can be published using drm_dev_register().
*
* There is also deprecated support for initalizing device instances using
* bus-specific helpers and the &drm_driver.load callback. But due to
@@ -274,7 +274,7 @@ void drm_minor_release(struct drm_minor *minor)
*
* The following example shows a typical structure of a DRM display driver.
* The example focus on the probe() function and the other functions that is
- * almost always present and serves as a demonstration of devm_drm_dev_init().
+ * almost always present and serves as a demonstration of devm_drm_dev_alloc().
*
* .. code-block:: c
*
@@ -294,22 +294,12 @@ void drm_minor_release(struct drm_minor *minor)
* struct drm_device *drm;
* int ret;
*
- * // devm_kzalloc() can't be used here because the drm_device '
- * // lifetime can exceed the device lifetime if driver unbind
- * // happens when userspace still has open file descriptors.
- * priv = kzalloc(sizeof(*priv), GFP_KERNEL);
- * if (!priv)
- * return -ENOMEM;
- *
+ * priv = devm_drm_dev_alloc(&pdev->dev, &driver_drm_driver,
+ * struct driver_device, drm);
+ * if (IS_ERR(priv))
+ * return PTR_ERR(priv);
* drm = &priv->drm;
*
- * ret = devm_drm_dev_init(&pdev->dev, drm, &driver_drm_driver);
- * if (ret) {
- * kfree(priv);
- * return ret;
- * }
- * drmm_add_final_kfree(drm, priv);
- *
* ret = drmm_mode_config_init(drm);
* if (ret)
* return ret;
@@ -550,9 +540,9 @@ static void drm_fs_inode_free(struct inode *inode)
* following guidelines apply:
*
* - The entire device initialization procedure should be run from the
- * &component_master_ops.master_bind callback, starting with drm_dev_init(),
- * then binding all components with component_bind_all() and finishing with
- * drm_dev_register().
+ * &component_master_ops.master_bind callback, starting with
+ * devm_drm_dev_alloc(), then binding all components with
+ * component_bind_all() and finishing with drm_dev_register().
*
* - The opaque pointer passed to all components through component_bind_all()
* should point at &struct drm_device of the device instance, not some driver
@@ -583,43 +573,9 @@ static void drm_dev_init_release(struct drm_device *dev, void *res)
drm_legacy_destroy_members(dev);
}
-/**
- * drm_dev_init - Initialise new DRM device
- * @dev: DRM device
- * @driver: DRM driver
- * @parent: Parent device object
- *
- * Initialize a new DRM device. No device registration is done.
- * Call drm_dev_register() to advertice the device to user space and register it
- * with other core subsystems. This should be done last in the device
- * initialization sequence to make sure userspace can't access an inconsistent
- * state.
- *
- * The initial ref-count of the object is 1. Use drm_dev_get() and
- * drm_dev_put() to take and drop further ref-counts.
- *
- * It is recommended that drivers embed &struct drm_device into their own device
- * structure.
- *
- * Drivers that do not want to allocate their own device struct
- * embedding &struct drm_device can call drm_dev_alloc() instead. For drivers
- * that do embed &struct drm_device it must be placed first in the overall
- * structure, and the overall structure must be allocated using kmalloc(): The
- * drm core's release function unconditionally calls kfree() on the @dev pointer
- * when the final reference is released. To override this behaviour, and so
- * allow embedding of the drm_device inside the driver's device struct at an
- * arbitrary offset, you must supply a &drm_driver.release callback and control
- * the finalization explicitly.
- *
- * Note that drivers must call drmm_add_final_kfree() after this function has
- * completed successfully.
- *
- * RETURNS:
- * 0 on success, or error code on failure.
- */
-int drm_dev_init(struct drm_device *dev,
- struct drm_driver *driver,
- struct device *parent)
+static int drm_dev_init(struct drm_device *dev,
+ struct drm_driver *driver,
+ struct device *parent)
{
int ret;
@@ -699,31 +655,15 @@ int drm_dev_init(struct drm_device *dev,
return ret;
}
-EXPORT_SYMBOL(drm_dev_init);
static void devm_drm_dev_init_release(void *data)
{
drm_dev_put(data);
}
-/**
- * devm_drm_dev_init - Resource managed drm_dev_init()
- * @parent: Parent device object
- * @dev: DRM device
- * @driver: DRM driver
- *
- * Managed drm_dev_init(). The DRM device initialized with this function is
- * automatically put on driver detach using drm_dev_put().
- *
- * Note that drivers must call drmm_add_final_kfree() after this function has
- * completed successfully.
- *
- * RETURNS:
- * 0 on success, or error code on failure.
- */
-int devm_drm_dev_init(struct device *parent,
- struct drm_device *dev,
- struct drm_driver *driver)
+static int devm_drm_dev_init(struct device *parent,
+ struct drm_device *dev,
+ struct drm_driver *driver)
{
int ret;
@@ -737,7 +677,6 @@ int devm_drm_dev_init(struct device *parent,
return ret;
}
-EXPORT_SYMBOL(devm_drm_dev_init);
void* __devm_drm_dev_alloc(struct device *parent, struct drm_driver *driver,
size_t size, size_t offset)
@@ -767,19 +706,9 @@ EXPORT_SYMBOL(__devm_drm_dev_alloc);
* @driver: DRM driver to allocate device for
* @parent: Parent device object
*
- * Allocate and initialize a new DRM device. No device registration is done.
- * Call drm_dev_register() to advertice the device to user space and register it
- * with other core subsystems. This should be done last in the device
- * initialization sequence to make sure userspace can't access an inconsistent
- * state.
- *
- * The initial ref-count of the object is 1. Use drm_dev_get() and
- * drm_dev_put() to take and drop further ref-counts.
- *
- * Note that for purely virtual devices @parent can be NULL.
- *
- * Drivers that wish to subclass or embed &struct drm_device into their
- * own struct should look at using drm_dev_init() instead.
+ * This is the deprecated version of devm_drm_dev_alloc(), which doesn not support
+ * subclassing through embedding the struct &drm_device in a driver private
+ * structure, and which does not support automatic cleanup through devres.
*
* RETURNS:
* Pointer to new DRM device, or ERR_PTR on failure.
diff --git a/drivers/gpu/drm/drm_internal.h b/drivers/gpu/drm/drm_internal.h
index 2470a352730b..79f11d3c525e 100644
--- a/drivers/gpu/drm/drm_internal.h
+++ b/drivers/gpu/drm/drm_internal.h
@@ -91,6 +91,7 @@ void drm_minor_release(struct drm_minor *minor);
/* drm_managed.c */
void drm_managed_release(struct drm_device *dev);
+void drmm_add_final_kfree(struct drm_device *dev, void *container);
/* drm_vblank.c */
void drm_vblank_disable_and_save(struct drm_device *dev, unsigned int pipe);
diff --git a/drivers/gpu/drm/drm_managed.c b/drivers/gpu/drm/drm_managed.c
index 9cebfe370a65..a2a0c5b7ab78 100644
--- a/drivers/gpu/drm/drm_managed.c
+++ b/drivers/gpu/drm/drm_managed.c
@@ -25,7 +25,7 @@
* be done directly with drmm_kmalloc() and the related functions. Everything
* will be released on the final drm_dev_put() in reverse order of how the
* release actions have been added and memory has been allocated since driver
- * loading started with drm_dev_init().
+ * loading started with devm_drm_dev_alloc().
*
* Note that release actions and managed memory can also be added and removed
* during the lifetime of the driver, all the functions are fully concurrent
@@ -123,18 +123,6 @@ static void add_dr(struct drm_device *dev, struct drmres *dr)
dr, dr->node.name, (unsigned long) dr->node.size);
}
-/**
- * drmm_add_final_kfree - add release action for the final kfree()
- * @dev: DRM device
- * @container: pointer to the kmalloc allocation containing @dev
- *
- * Since the allocation containing the struct &drm_device must be allocated
- * before it can be initialized with drm_dev_init() there's no way to allocate
- * that memory with drmm_kmalloc(). To side-step this chicken-egg problem the
- * pointer for this final kfree() must be specified by calling this function. It
- * will be released in the final drm_dev_put() for @dev, after all other release
- * actions installed through drmm_add_action() have been processed.
- */
void drmm_add_final_kfree(struct drm_device *dev, void *container)
{
WARN_ON(dev->managed.final_kfree);
@@ -142,7 +130,6 @@ void drmm_add_final_kfree(struct drm_device *dev, void *container)
WARN_ON(dev + 1 > (struct drm_device *) (container + ksize(container)));
dev->managed.final_kfree = container;
}
-EXPORT_SYMBOL(drmm_add_final_kfree);
int __drmm_add_action(struct drm_device *dev,
drmres_release_t action,
diff --git a/include/drm/drm_device.h b/include/drm/drm_device.h
index a55874db9dd4..ee9e20ce9b85 100644
--- a/include/drm/drm_device.h
+++ b/include/drm/drm_device.h
@@ -92,7 +92,7 @@ struct drm_device {
* NULL.
*
* Instead of using this pointer it is recommended that drivers use
- * drm_dev_init() and embed struct &drm_device in their larger
+ * devm_drm_dev_alloc() and embed struct &drm_device in their larger
* per-device structure.
*/
void *dev_private;
diff --git a/include/drm/drm_drv.h b/include/drm/drm_drv.h
index 26776be5a21e..2806cc5eae3a 100644
--- a/include/drm/drm_drv.h
+++ b/include/drm/drm_drv.h
@@ -163,13 +163,12 @@ struct drm_driver {
/**
* @load:
*
- * Backward-compatible driver callback to complete
- * initialization steps after the driver is registered. For
- * this reason, may suffer from race conditions and its use is
- * deprecated for new drivers. It is therefore only supported
- * for existing drivers not yet converted to the new scheme.
- * See drm_dev_init() and drm_dev_register() for proper and
- * race-free way to set up a &struct drm_device.
+ * Backward-compatible driver callback to complete initialization steps
+ * after the driver is registered. For this reason, may suffer from
+ * race conditions and its use is deprecated for new drivers. It is
+ * therefore only supported for existing drivers not yet converted to
+ * the new scheme. See devm_drm_dev_alloc() and drm_dev_register() for
+ * proper and race-free way to set up a &struct drm_device.
*
* This is deprecated, do not use!
*
@@ -619,13 +618,6 @@ struct drm_driver {
int dev_priv_size;
};
-int drm_dev_init(struct drm_device *dev,
- struct drm_driver *driver,
- struct device *parent);
-int devm_drm_dev_init(struct device *parent,
- struct drm_device *dev,
- struct drm_driver *driver);
-
void* __devm_drm_dev_alloc(struct device *parent, struct drm_driver *driver,
size_t size, size_t offset);
--
2.25.1
_______________________________________________
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Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [Intel-gfx] ✗ Fi.CI.BUILD: failure for devm_drm_dev_alloc, no more drmm_add_final_kfree
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
` (44 preceding siblings ...)
(?)
@ 2020-04-03 14:15 ` Patchwork
-1 siblings, 0 replies; 262+ messages in thread
From: Patchwork @ 2020-04-03 14:15 UTC (permalink / raw)
To: Daniel Vetter; +Cc: intel-gfx
== Series Details ==
Series: devm_drm_dev_alloc, no more drmm_add_final_kfree
URL : https://patchwork.freedesktop.org/series/75463/
State : failure
== Summary ==
CALL scripts/checksyscalls.sh
CALL scripts/atomic/check-atomics.sh
DESCEND objtool
CHK include/generated/compile.h
HDRTEST drivers/gpu/drm/i915/selftests/mock_gem_device.h
In file included from <command-line>:0:0:
./drivers/gpu/drm/i915/selftests/mock_gem_device.h: In function ‘mock_destroy_device’:
./drivers/gpu/drm/i915/selftests/mock_gem_device.h:12:2: error: implicit declaration of function ‘device_del’ [-Werror=implicit-function-declaration]
device_del(i915->drm.dev);
^~~~~~~~~~
./drivers/gpu/drm/i915/selftests/mock_gem_device.h:12:17: error: dereferencing pointer to incomplete type ‘struct drm_i915_private’
device_del(i915->drm.dev);
^~
cc1: all warnings being treated as errors
drivers/gpu/drm/i915/Makefile:298: recipe for target 'drivers/gpu/drm/i915/selftests/mock_gem_device.hdrtest' failed
make[4]: *** [drivers/gpu/drm/i915/selftests/mock_gem_device.hdrtest] Error 1
scripts/Makefile.build:505: recipe for target 'drivers/gpu/drm/i915' failed
make[3]: *** [drivers/gpu/drm/i915] Error 2
scripts/Makefile.build:505: recipe for target 'drivers/gpu/drm' failed
make[2]: *** [drivers/gpu/drm] Error 2
scripts/Makefile.build:505: recipe for target 'drivers/gpu' failed
make[1]: *** [drivers/gpu] Error 2
Makefile:1683: recipe for target 'drivers' failed
make: *** [drivers] Error 2
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Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 01/44] drivers/base: Always release devres on device_del
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-03 14:17 ` Greg Kroah-Hartman
-1 siblings, 0 replies; 262+ messages in thread
From: Greg Kroah-Hartman @ 2020-04-03 14:17 UTC (permalink / raw)
To: Daniel Vetter
Cc: Daniel Vetter, Intel Graphics Development, DRI Development,
Rafael J. Wysocki
On Fri, Apr 03, 2020 at 03:57:45PM +0200, Daniel Vetter wrote:
> In drm we've added nice drm_device (the main gpu driver thing, which
> also represents the userspace interfaces and has everything else
> dangling off it) init functions using devres, devm_drm_dev_init and
> soon devm_drm_dev_alloc (this patch series adds that).
>
> A slight trouble is that drm_device itself holds a reference on the
> struct device it's sitting on top (for sysfs links and dmesg debug and
> lots of other things), so there's a reference loop. For real drivers
> this is broken at remove/unplug time, where all devres resources are
> released device_release_driver(), before the final device reference is
> dropped. So far so good.
>
> There's 2 exceptions:
> - drm/vkms|vgem: Virtual drivers for which we create a fake/virtual
> platform device to make them look more like normal devices to
> userspace. These aren't drivers in the driver model sense, we simple
> create a platform_device and register it.
That's a horrid abuse of platform devices, just use a "virtual" device
please, create/remove it when you need it, and all should be fine.
> - drm/i915/selftests, where we create minimal mock devices, and again
> the selftests aren't proper drivers in the driver model sense.
Again, virtual devices are best to use for this.
> For these two cases the reference loop isn't broken, because devres is
> only cleaned up when the last device reference is dropped. But that's
> not happening, because the drm_device holds that last struct device
> reference.
>
> Thus far this wasn't a problem since the above cases simply
> hand-rolled their cleanup code. But I want to convert all drivers over
> to the devm_ versions, hence it would be really nice if these
> virtual/fake/mock uses-cases could also be managed with devres
> cleanup.
>
> I see three possible approaches:
>
> - Clean up devres from device_del (or platform_device_unregister) even
> when no driver is bound. This seems like the simplest solution, but
> also the one with the widest impact, and what this patch implements.
> We might want to include more of the cleanup than just
> devres_release_all, but this is all I need to get my use case going.
After device_del, you should never be using that structure again anyway.
So why is there any "resource leak"? You can't recycle the structure,
and you can't assign it to anything else, so eventually you have to do
a final put on the thing, which will free up the resources.
And then all should be fine, right? But, by putting the freeing here,
you can still have a "live" device that thinks it has resources availble
that it can access, but yet they are now gone. Yeah, it's probably not
ever going to really happen, but the lifecycles of dynamic devices are
tough to "prove" at times, and I worry that freeing things this early is
going to cause odd disconnect issues.
thanks,
greg k-h
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^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [Intel-gfx] [PATCH 01/44] drivers/base: Always release devres on device_del
@ 2020-04-03 14:17 ` Greg Kroah-Hartman
0 siblings, 0 replies; 262+ messages in thread
From: Greg Kroah-Hartman @ 2020-04-03 14:17 UTC (permalink / raw)
To: Daniel Vetter
Cc: Daniel Vetter, Intel Graphics Development, DRI Development,
Rafael J. Wysocki
On Fri, Apr 03, 2020 at 03:57:45PM +0200, Daniel Vetter wrote:
> In drm we've added nice drm_device (the main gpu driver thing, which
> also represents the userspace interfaces and has everything else
> dangling off it) init functions using devres, devm_drm_dev_init and
> soon devm_drm_dev_alloc (this patch series adds that).
>
> A slight trouble is that drm_device itself holds a reference on the
> struct device it's sitting on top (for sysfs links and dmesg debug and
> lots of other things), so there's a reference loop. For real drivers
> this is broken at remove/unplug time, where all devres resources are
> released device_release_driver(), before the final device reference is
> dropped. So far so good.
>
> There's 2 exceptions:
> - drm/vkms|vgem: Virtual drivers for which we create a fake/virtual
> platform device to make them look more like normal devices to
> userspace. These aren't drivers in the driver model sense, we simple
> create a platform_device and register it.
That's a horrid abuse of platform devices, just use a "virtual" device
please, create/remove it when you need it, and all should be fine.
> - drm/i915/selftests, where we create minimal mock devices, and again
> the selftests aren't proper drivers in the driver model sense.
Again, virtual devices are best to use for this.
> For these two cases the reference loop isn't broken, because devres is
> only cleaned up when the last device reference is dropped. But that's
> not happening, because the drm_device holds that last struct device
> reference.
>
> Thus far this wasn't a problem since the above cases simply
> hand-rolled their cleanup code. But I want to convert all drivers over
> to the devm_ versions, hence it would be really nice if these
> virtual/fake/mock uses-cases could also be managed with devres
> cleanup.
>
> I see three possible approaches:
>
> - Clean up devres from device_del (or platform_device_unregister) even
> when no driver is bound. This seems like the simplest solution, but
> also the one with the widest impact, and what this patch implements.
> We might want to include more of the cleanup than just
> devres_release_all, but this is all I need to get my use case going.
After device_del, you should never be using that structure again anyway.
So why is there any "resource leak"? You can't recycle the structure,
and you can't assign it to anything else, so eventually you have to do
a final put on the thing, which will free up the resources.
And then all should be fine, right? But, by putting the freeing here,
you can still have a "live" device that thinks it has resources availble
that it can access, but yet they are now gone. Yeah, it's probably not
ever going to really happen, but the lifecycles of dynamic devices are
tough to "prove" at times, and I worry that freeing things this early is
going to cause odd disconnect issues.
thanks,
greg k-h
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 01/44] drivers/base: Always release devres on device_del
2020-04-03 14:17 ` [Intel-gfx] " Greg Kroah-Hartman
@ 2020-04-03 14:47 ` Daniel Vetter
-1 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 14:47 UTC (permalink / raw)
To: Greg Kroah-Hartman
Cc: Daniel Vetter, Intel Graphics Development, DRI Development,
Rafael J. Wysocki
On Fri, Apr 3, 2020 at 4:17 PM Greg Kroah-Hartman
<gregkh@linuxfoundation.org> wrote:
>
> On Fri, Apr 03, 2020 at 03:57:45PM +0200, Daniel Vetter wrote:
> > In drm we've added nice drm_device (the main gpu driver thing, which
> > also represents the userspace interfaces and has everything else
> > dangling off it) init functions using devres, devm_drm_dev_init and
> > soon devm_drm_dev_alloc (this patch series adds that).
> >
> > A slight trouble is that drm_device itself holds a reference on the
> > struct device it's sitting on top (for sysfs links and dmesg debug and
> > lots of other things), so there's a reference loop. For real drivers
> > this is broken at remove/unplug time, where all devres resources are
> > released device_release_driver(), before the final device reference is
> > dropped. So far so good.
> >
> > There's 2 exceptions:
> > - drm/vkms|vgem: Virtual drivers for which we create a fake/virtual
> > platform device to make them look more like normal devices to
> > userspace. These aren't drivers in the driver model sense, we simple
> > create a platform_device and register it.
>
> That's a horrid abuse of platform devices, just use a "virtual" device
> please, create/remove it when you need it, and all should be fine.
>
> > - drm/i915/selftests, where we create minimal mock devices, and again
> > the selftests aren't proper drivers in the driver model sense.
>
> Again, virtual devices are best to use for this.
Hm yeah, I guess we should fix that. i915 selftests do use raw struct
device though, and it's not really the problem.
> > For these two cases the reference loop isn't broken, because devres is
> > only cleaned up when the last device reference is dropped. But that's
> > not happening, because the drm_device holds that last struct device
> > reference.
> >
> > Thus far this wasn't a problem since the above cases simply
> > hand-rolled their cleanup code. But I want to convert all drivers over
> > to the devm_ versions, hence it would be really nice if these
> > virtual/fake/mock uses-cases could also be managed with devres
> > cleanup.
> >
> > I see three possible approaches:
> >
> > - Clean up devres from device_del (or platform_device_unregister) even
> > when no driver is bound. This seems like the simplest solution, but
> > also the one with the widest impact, and what this patch implements.
> > We might want to include more of the cleanup than just
> > devres_release_all, but this is all I need to get my use case going.
>
> After device_del, you should never be using that structure again anyway.
> So why is there any "resource leak"? You can't recycle the structure,
> and you can't assign it to anything else, so eventually you have to do
> a final put on the thing, which will free up the resources.
I guess I should have spent more time explaining this. There's two
references involved:
- drm_device->dev points at the underlying struct device. The
drm_device holds a reference until it's fully cleaned up, so that we
can do nice stuff like use dev_ versions of printk functions, and you
always know that there's not going to be a use-after free.
- now the other dependency is that as long as the device exists (not
just in memory, but in the device model, i.e. between device_add() and
device_del()) the drm_device should exist. So what we do in the
bus-specific remove/disconnect callback is that we call
drm_dev_unregister(). This drops the drm_device refcount that the drm
chardev was holding, to make sure that an open() on the chardev can
actually get at the memory without going boom. Then after the
drm_dev_unregister, again in the remove/disconnect callback of th
driver, there's a drm_dev_put(). Which might or might not be the final
drm_dev_put(), since if there's currently some open fd we keep the
refcount elevated, to avoid oopses and fun stuff like that. And
drm_device pointers get shared very widely, thanks to fun stuff like
dma_buf buffer sharing and dma_fence hw syncpt sharing across
processes and drivers.
Once the final drm_dev_put() is called we also end up calling
put_device() and everything is happy.
So far so good.
Now the problem is that refcount is hard, and most drm drivers get it
wrong in some fashion or another, so I'm trying to solve all this with
more magic.
Since all drivers need to have a drm_dev_put() at the end of their
driver's remove/disconnect callback we've added a devm_drm_dev_init
function which registers a devres action to do that drm_dev_put() at
device_del time (which might or might not be the final drm_dev_put()).
Nothing has changed thus far.
Now this works really well because when you have a real driver model
driver attached, then device_del ends up calling devres_release_all(),
which ends up triggering the multi-stage cleanup of drm_devices. But
if you do _not_ have a real driver attached, then device_del does
nothing wrt devres cleanup. Instead this is delayed until the final
put_device().
Unfortunately that final put_device() will never happen, because
drm_device is still holding a reference to the struct device. And the
final drm_dev_put of that drm_device will never happen, because that
drm_dev_put call is in a devres actions, which wont ever get called.
This is the only case where this reference loop happens and doesn't
get broken. By calling devres_release_all at device_del time,
irrespective of whether a driver is bound or not, we make both cases
work the same. And at both cases the devres cleanup happens device_del
time, and not when the final put_device is called.
Aside: The final put_device has another devres_release_all() call,
which given your explanation sounds very wrong - at that point the
physical device is long gone, and cleaning up devres actions at that
point is way too late. I think a good cleanup patch on top of this
would be to remove that call, and replace it with an assert that no
one managed to sneak in a devres_add_action between device_del and the
final put_device().
> And then all should be fine, right? But, by putting the freeing here,
> you can still have a "live" device that thinks it has resources availble
> that it can access, but yet they are now gone. Yeah, it's probably not
> ever going to really happen, but the lifecycles of dynamic devices are
> tough to "prove" at times, and I worry that freeing things this early is
> going to cause odd disconnect issues.
Not exactly sure what you mean here, but trying to fix all the driver
bugs we have in drm is why I'm doing this. We have a massive amount of
gaps still, but we're slowly closing them all off with stuff like
drm_dev_enter/exit, to make sure there's no races possible between
driver hotunplug and concurrent access by userspace.
The additional trouble is that users are really pissed when we crash
their compositor just because they unplugged an usb display dongle or
an usb projector thing. So the failure mode we're aiming for in drm
for hotunplug is to be very graceful to userspace - experience says
that userspace is even less likely to handle this correctly than the
kernel. That's why we're refcounting drm_device and everything hanging
off it, so that it sticks around and we can pretend to userspace that
it's all still there (but disconnected from hw and the driver). Until
userspace has gone around and managed to process the udev events and
closed all open fds.
Cheers, Daniel
--
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [Intel-gfx] [PATCH 01/44] drivers/base: Always release devres on device_del
@ 2020-04-03 14:47 ` Daniel Vetter
0 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 14:47 UTC (permalink / raw)
To: Greg Kroah-Hartman
Cc: Daniel Vetter, Intel Graphics Development, DRI Development,
Rafael J. Wysocki
On Fri, Apr 3, 2020 at 4:17 PM Greg Kroah-Hartman
<gregkh@linuxfoundation.org> wrote:
>
> On Fri, Apr 03, 2020 at 03:57:45PM +0200, Daniel Vetter wrote:
> > In drm we've added nice drm_device (the main gpu driver thing, which
> > also represents the userspace interfaces and has everything else
> > dangling off it) init functions using devres, devm_drm_dev_init and
> > soon devm_drm_dev_alloc (this patch series adds that).
> >
> > A slight trouble is that drm_device itself holds a reference on the
> > struct device it's sitting on top (for sysfs links and dmesg debug and
> > lots of other things), so there's a reference loop. For real drivers
> > this is broken at remove/unplug time, where all devres resources are
> > released device_release_driver(), before the final device reference is
> > dropped. So far so good.
> >
> > There's 2 exceptions:
> > - drm/vkms|vgem: Virtual drivers for which we create a fake/virtual
> > platform device to make them look more like normal devices to
> > userspace. These aren't drivers in the driver model sense, we simple
> > create a platform_device and register it.
>
> That's a horrid abuse of platform devices, just use a "virtual" device
> please, create/remove it when you need it, and all should be fine.
>
> > - drm/i915/selftests, where we create minimal mock devices, and again
> > the selftests aren't proper drivers in the driver model sense.
>
> Again, virtual devices are best to use for this.
Hm yeah, I guess we should fix that. i915 selftests do use raw struct
device though, and it's not really the problem.
> > For these two cases the reference loop isn't broken, because devres is
> > only cleaned up when the last device reference is dropped. But that's
> > not happening, because the drm_device holds that last struct device
> > reference.
> >
> > Thus far this wasn't a problem since the above cases simply
> > hand-rolled their cleanup code. But I want to convert all drivers over
> > to the devm_ versions, hence it would be really nice if these
> > virtual/fake/mock uses-cases could also be managed with devres
> > cleanup.
> >
> > I see three possible approaches:
> >
> > - Clean up devres from device_del (or platform_device_unregister) even
> > when no driver is bound. This seems like the simplest solution, but
> > also the one with the widest impact, and what this patch implements.
> > We might want to include more of the cleanup than just
> > devres_release_all, but this is all I need to get my use case going.
>
> After device_del, you should never be using that structure again anyway.
> So why is there any "resource leak"? You can't recycle the structure,
> and you can't assign it to anything else, so eventually you have to do
> a final put on the thing, which will free up the resources.
I guess I should have spent more time explaining this. There's two
references involved:
- drm_device->dev points at the underlying struct device. The
drm_device holds a reference until it's fully cleaned up, so that we
can do nice stuff like use dev_ versions of printk functions, and you
always know that there's not going to be a use-after free.
- now the other dependency is that as long as the device exists (not
just in memory, but in the device model, i.e. between device_add() and
device_del()) the drm_device should exist. So what we do in the
bus-specific remove/disconnect callback is that we call
drm_dev_unregister(). This drops the drm_device refcount that the drm
chardev was holding, to make sure that an open() on the chardev can
actually get at the memory without going boom. Then after the
drm_dev_unregister, again in the remove/disconnect callback of th
driver, there's a drm_dev_put(). Which might or might not be the final
drm_dev_put(), since if there's currently some open fd we keep the
refcount elevated, to avoid oopses and fun stuff like that. And
drm_device pointers get shared very widely, thanks to fun stuff like
dma_buf buffer sharing and dma_fence hw syncpt sharing across
processes and drivers.
Once the final drm_dev_put() is called we also end up calling
put_device() and everything is happy.
So far so good.
Now the problem is that refcount is hard, and most drm drivers get it
wrong in some fashion or another, so I'm trying to solve all this with
more magic.
Since all drivers need to have a drm_dev_put() at the end of their
driver's remove/disconnect callback we've added a devm_drm_dev_init
function which registers a devres action to do that drm_dev_put() at
device_del time (which might or might not be the final drm_dev_put()).
Nothing has changed thus far.
Now this works really well because when you have a real driver model
driver attached, then device_del ends up calling devres_release_all(),
which ends up triggering the multi-stage cleanup of drm_devices. But
if you do _not_ have a real driver attached, then device_del does
nothing wrt devres cleanup. Instead this is delayed until the final
put_device().
Unfortunately that final put_device() will never happen, because
drm_device is still holding a reference to the struct device. And the
final drm_dev_put of that drm_device will never happen, because that
drm_dev_put call is in a devres actions, which wont ever get called.
This is the only case where this reference loop happens and doesn't
get broken. By calling devres_release_all at device_del time,
irrespective of whether a driver is bound or not, we make both cases
work the same. And at both cases the devres cleanup happens device_del
time, and not when the final put_device is called.
Aside: The final put_device has another devres_release_all() call,
which given your explanation sounds very wrong - at that point the
physical device is long gone, and cleaning up devres actions at that
point is way too late. I think a good cleanup patch on top of this
would be to remove that call, and replace it with an assert that no
one managed to sneak in a devres_add_action between device_del and the
final put_device().
> And then all should be fine, right? But, by putting the freeing here,
> you can still have a "live" device that thinks it has resources availble
> that it can access, but yet they are now gone. Yeah, it's probably not
> ever going to really happen, but the lifecycles of dynamic devices are
> tough to "prove" at times, and I worry that freeing things this early is
> going to cause odd disconnect issues.
Not exactly sure what you mean here, but trying to fix all the driver
bugs we have in drm is why I'm doing this. We have a massive amount of
gaps still, but we're slowly closing them all off with stuff like
drm_dev_enter/exit, to make sure there's no races possible between
driver hotunplug and concurrent access by userspace.
The additional trouble is that users are really pissed when we crash
their compositor just because they unplugged an usb display dongle or
an usb projector thing. So the failure mode we're aiming for in drm
for hotunplug is to be very graceful to userspace - experience says
that userspace is even less likely to handle this correctly than the
kernel. That's why we're refcounting drm_device and everything hanging
off it, so that it sticks around and we can pretend to userspace that
it's all still there (but disconnected from hw and the driver). Until
userspace has gone around and managed to process the udev events and
closed all open fds.
Cheers, Daniel
--
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 01/44] drivers/base: Always release devres on device_del
2020-04-03 14:47 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-03 14:51 ` Daniel Vetter
-1 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 14:51 UTC (permalink / raw)
To: Greg Kroah-Hartman
Cc: Daniel Vetter, Intel Graphics Development, DRI Development,
Rafael J. Wysocki
On Fri, Apr 3, 2020 at 4:47 PM Daniel Vetter <daniel.vetter@ffwll.ch> wrote:
>
> On Fri, Apr 3, 2020 at 4:17 PM Greg Kroah-Hartman
> <gregkh@linuxfoundation.org> wrote:
> >
> > On Fri, Apr 03, 2020 at 03:57:45PM +0200, Daniel Vetter wrote:
> > > In drm we've added nice drm_device (the main gpu driver thing, which
> > > also represents the userspace interfaces and has everything else
> > > dangling off it) init functions using devres, devm_drm_dev_init and
> > > soon devm_drm_dev_alloc (this patch series adds that).
> > >
> > > A slight trouble is that drm_device itself holds a reference on the
> > > struct device it's sitting on top (for sysfs links and dmesg debug and
> > > lots of other things), so there's a reference loop. For real drivers
> > > this is broken at remove/unplug time, where all devres resources are
> > > released device_release_driver(), before the final device reference is
> > > dropped. So far so good.
> > >
> > > There's 2 exceptions:
> > > - drm/vkms|vgem: Virtual drivers for which we create a fake/virtual
> > > platform device to make them look more like normal devices to
> > > userspace. These aren't drivers in the driver model sense, we simple
> > > create a platform_device and register it.
> >
> > That's a horrid abuse of platform devices, just use a "virtual" device
> > please, create/remove it when you need it, and all should be fine.
> >
> > > - drm/i915/selftests, where we create minimal mock devices, and again
> > > the selftests aren't proper drivers in the driver model sense.
> >
> > Again, virtual devices are best to use for this.
>
> Hm yeah, I guess we should fix that. i915 selftests do use raw struct
> device though, and it's not really the problem.
>
> > > For these two cases the reference loop isn't broken, because devres is
> > > only cleaned up when the last device reference is dropped. But that's
> > > not happening, because the drm_device holds that last struct device
> > > reference.
> > >
> > > Thus far this wasn't a problem since the above cases simply
> > > hand-rolled their cleanup code. But I want to convert all drivers over
> > > to the devm_ versions, hence it would be really nice if these
> > > virtual/fake/mock uses-cases could also be managed with devres
> > > cleanup.
> > >
> > > I see three possible approaches:
> > >
> > > - Clean up devres from device_del (or platform_device_unregister) even
> > > when no driver is bound. This seems like the simplest solution, but
> > > also the one with the widest impact, and what this patch implements.
> > > We might want to include more of the cleanup than just
> > > devres_release_all, but this is all I need to get my use case going.
> >
> > After device_del, you should never be using that structure again anyway.
> > So why is there any "resource leak"? You can't recycle the structure,
> > and you can't assign it to anything else, so eventually you have to do
> > a final put on the thing, which will free up the resources.
>
> I guess I should have spent more time explaining this. There's two
> references involved:
>
> - drm_device->dev points at the underlying struct device. The
> drm_device holds a reference until it's fully cleaned up, so that we
> can do nice stuff like use dev_ versions of printk functions, and you
> always know that there's not going to be a use-after free.
>
> - now the other dependency is that as long as the device exists (not
> just in memory, but in the device model, i.e. between device_add() and
> device_del()) the drm_device should exist. So what we do in the
> bus-specific remove/disconnect callback is that we call
> drm_dev_unregister(). This drops the drm_device refcount that the drm
> chardev was holding, to make sure that an open() on the chardev can
> actually get at the memory without going boom. Then after the
> drm_dev_unregister, again in the remove/disconnect callback of th
> driver, there's a drm_dev_put(). Which might or might not be the final
> drm_dev_put(), since if there's currently some open fd we keep the
> refcount elevated, to avoid oopses and fun stuff like that. And
> drm_device pointers get shared very widely, thanks to fun stuff like
> dma_buf buffer sharing and dma_fence hw syncpt sharing across
> processes and drivers.
>
> Once the final drm_dev_put() is called we also end up calling
> put_device() and everything is happy.
>
> So far so good.
>
> Now the problem is that refcount is hard, and most drm drivers get it
> wrong in some fashion or another, so I'm trying to solve all this with
> more magic.
>
> Since all drivers need to have a drm_dev_put() at the end of their
> driver's remove/disconnect callback we've added a devm_drm_dev_init
> function which registers a devres action to do that drm_dev_put() at
> device_del time (which might or might not be the final drm_dev_put()).
> Nothing has changed thus far.
>
> Now this works really well because when you have a real driver model
> driver attached, then device_del ends up calling devres_release_all(),
> which ends up triggering the multi-stage cleanup of drm_devices. But
> if you do _not_ have a real driver attached, then device_del does
> nothing wrt devres cleanup. Instead this is delayed until the final
> put_device().
>
> Unfortunately that final put_device() will never happen, because
> drm_device is still holding a reference to the struct device. And the
> final drm_dev_put of that drm_device will never happen, because that
> drm_dev_put call is in a devres actions, which wont ever get called.
>
> This is the only case where this reference loop happens and doesn't
> get broken. By calling devres_release_all at device_del time,
> irrespective of whether a driver is bound or not, we make both cases
> work the same. And at both cases the devres cleanup happens device_del
> time, and not when the final put_device is called.
>
> Aside: The final put_device has another devres_release_all() call,
> which given your explanation sounds very wrong - at that point the
> physical device is long gone, and cleaning up devres actions at that
> point is way too late. I think a good cleanup patch on top of this
> would be to remove that call, and replace it with an assert that no
> one managed to sneak in a devres_add_action between device_del and the
> final put_device().
I've done a bit more digging, and found this commit:
commit a525a3ddeaca69f405d98442ab3c0746e53168dc
Author: Ming Lei <tom.leiming@gmail.com>
Date: Wed Jul 25 01:42:29 2012 +0800
driver core: free devres in device_release
Before this devres_release_all was called at device_del() time,
unconditionally whether a driver was bound or not. Which seems to have
been the intention at least back then. So in a way my patch simply
restores that behaviour for the case where no driver has been bound to
a device structure, but we still have devres resources hanging off it.
-Daniel
>
> > And then all should be fine, right? But, by putting the freeing here,
> > you can still have a "live" device that thinks it has resources availble
> > that it can access, but yet they are now gone. Yeah, it's probably not
> > ever going to really happen, but the lifecycles of dynamic devices are
> > tough to "prove" at times, and I worry that freeing things this early is
> > going to cause odd disconnect issues.
>
> Not exactly sure what you mean here, but trying to fix all the driver
> bugs we have in drm is why I'm doing this. We have a massive amount of
> gaps still, but we're slowly closing them all off with stuff like
> drm_dev_enter/exit, to make sure there's no races possible between
> driver hotunplug and concurrent access by userspace.
>
> The additional trouble is that users are really pissed when we crash
> their compositor just because they unplugged an usb display dongle or
> an usb projector thing. So the failure mode we're aiming for in drm
> for hotunplug is to be very graceful to userspace - experience says
> that userspace is even less likely to handle this correctly than the
> kernel. That's why we're refcounting drm_device and everything hanging
> off it, so that it sticks around and we can pretend to userspace that
> it's all still there (but disconnected from hw and the driver). Until
> userspace has gone around and managed to process the udev events and
> closed all open fds.
>
> Cheers, Daniel
> --
> Daniel Vetter
> Software Engineer, Intel Corporation
> +41 (0) 79 365 57 48 - http://blog.ffwll.ch
--
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [Intel-gfx] [PATCH 01/44] drivers/base: Always release devres on device_del
@ 2020-04-03 14:51 ` Daniel Vetter
0 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 14:51 UTC (permalink / raw)
To: Greg Kroah-Hartman
Cc: Daniel Vetter, Intel Graphics Development, DRI Development,
Rafael J. Wysocki
On Fri, Apr 3, 2020 at 4:47 PM Daniel Vetter <daniel.vetter@ffwll.ch> wrote:
>
> On Fri, Apr 3, 2020 at 4:17 PM Greg Kroah-Hartman
> <gregkh@linuxfoundation.org> wrote:
> >
> > On Fri, Apr 03, 2020 at 03:57:45PM +0200, Daniel Vetter wrote:
> > > In drm we've added nice drm_device (the main gpu driver thing, which
> > > also represents the userspace interfaces and has everything else
> > > dangling off it) init functions using devres, devm_drm_dev_init and
> > > soon devm_drm_dev_alloc (this patch series adds that).
> > >
> > > A slight trouble is that drm_device itself holds a reference on the
> > > struct device it's sitting on top (for sysfs links and dmesg debug and
> > > lots of other things), so there's a reference loop. For real drivers
> > > this is broken at remove/unplug time, where all devres resources are
> > > released device_release_driver(), before the final device reference is
> > > dropped. So far so good.
> > >
> > > There's 2 exceptions:
> > > - drm/vkms|vgem: Virtual drivers for which we create a fake/virtual
> > > platform device to make them look more like normal devices to
> > > userspace. These aren't drivers in the driver model sense, we simple
> > > create a platform_device and register it.
> >
> > That's a horrid abuse of platform devices, just use a "virtual" device
> > please, create/remove it when you need it, and all should be fine.
> >
> > > - drm/i915/selftests, where we create minimal mock devices, and again
> > > the selftests aren't proper drivers in the driver model sense.
> >
> > Again, virtual devices are best to use for this.
>
> Hm yeah, I guess we should fix that. i915 selftests do use raw struct
> device though, and it's not really the problem.
>
> > > For these two cases the reference loop isn't broken, because devres is
> > > only cleaned up when the last device reference is dropped. But that's
> > > not happening, because the drm_device holds that last struct device
> > > reference.
> > >
> > > Thus far this wasn't a problem since the above cases simply
> > > hand-rolled their cleanup code. But I want to convert all drivers over
> > > to the devm_ versions, hence it would be really nice if these
> > > virtual/fake/mock uses-cases could also be managed with devres
> > > cleanup.
> > >
> > > I see three possible approaches:
> > >
> > > - Clean up devres from device_del (or platform_device_unregister) even
> > > when no driver is bound. This seems like the simplest solution, but
> > > also the one with the widest impact, and what this patch implements.
> > > We might want to include more of the cleanup than just
> > > devres_release_all, but this is all I need to get my use case going.
> >
> > After device_del, you should never be using that structure again anyway.
> > So why is there any "resource leak"? You can't recycle the structure,
> > and you can't assign it to anything else, so eventually you have to do
> > a final put on the thing, which will free up the resources.
>
> I guess I should have spent more time explaining this. There's two
> references involved:
>
> - drm_device->dev points at the underlying struct device. The
> drm_device holds a reference until it's fully cleaned up, so that we
> can do nice stuff like use dev_ versions of printk functions, and you
> always know that there's not going to be a use-after free.
>
> - now the other dependency is that as long as the device exists (not
> just in memory, but in the device model, i.e. between device_add() and
> device_del()) the drm_device should exist. So what we do in the
> bus-specific remove/disconnect callback is that we call
> drm_dev_unregister(). This drops the drm_device refcount that the drm
> chardev was holding, to make sure that an open() on the chardev can
> actually get at the memory without going boom. Then after the
> drm_dev_unregister, again in the remove/disconnect callback of th
> driver, there's a drm_dev_put(). Which might or might not be the final
> drm_dev_put(), since if there's currently some open fd we keep the
> refcount elevated, to avoid oopses and fun stuff like that. And
> drm_device pointers get shared very widely, thanks to fun stuff like
> dma_buf buffer sharing and dma_fence hw syncpt sharing across
> processes and drivers.
>
> Once the final drm_dev_put() is called we also end up calling
> put_device() and everything is happy.
>
> So far so good.
>
> Now the problem is that refcount is hard, and most drm drivers get it
> wrong in some fashion or another, so I'm trying to solve all this with
> more magic.
>
> Since all drivers need to have a drm_dev_put() at the end of their
> driver's remove/disconnect callback we've added a devm_drm_dev_init
> function which registers a devres action to do that drm_dev_put() at
> device_del time (which might or might not be the final drm_dev_put()).
> Nothing has changed thus far.
>
> Now this works really well because when you have a real driver model
> driver attached, then device_del ends up calling devres_release_all(),
> which ends up triggering the multi-stage cleanup of drm_devices. But
> if you do _not_ have a real driver attached, then device_del does
> nothing wrt devres cleanup. Instead this is delayed until the final
> put_device().
>
> Unfortunately that final put_device() will never happen, because
> drm_device is still holding a reference to the struct device. And the
> final drm_dev_put of that drm_device will never happen, because that
> drm_dev_put call is in a devres actions, which wont ever get called.
>
> This is the only case where this reference loop happens and doesn't
> get broken. By calling devres_release_all at device_del time,
> irrespective of whether a driver is bound or not, we make both cases
> work the same. And at both cases the devres cleanup happens device_del
> time, and not when the final put_device is called.
>
> Aside: The final put_device has another devres_release_all() call,
> which given your explanation sounds very wrong - at that point the
> physical device is long gone, and cleaning up devres actions at that
> point is way too late. I think a good cleanup patch on top of this
> would be to remove that call, and replace it with an assert that no
> one managed to sneak in a devres_add_action between device_del and the
> final put_device().
I've done a bit more digging, and found this commit:
commit a525a3ddeaca69f405d98442ab3c0746e53168dc
Author: Ming Lei <tom.leiming@gmail.com>
Date: Wed Jul 25 01:42:29 2012 +0800
driver core: free devres in device_release
Before this devres_release_all was called at device_del() time,
unconditionally whether a driver was bound or not. Which seems to have
been the intention at least back then. So in a way my patch simply
restores that behaviour for the case where no driver has been bound to
a device structure, but we still have devres resources hanging off it.
-Daniel
>
> > And then all should be fine, right? But, by putting the freeing here,
> > you can still have a "live" device that thinks it has resources availble
> > that it can access, but yet they are now gone. Yeah, it's probably not
> > ever going to really happen, but the lifecycles of dynamic devices are
> > tough to "prove" at times, and I worry that freeing things this early is
> > going to cause odd disconnect issues.
>
> Not exactly sure what you mean here, but trying to fix all the driver
> bugs we have in drm is why I'm doing this. We have a massive amount of
> gaps still, but we're slowly closing them all off with stuff like
> drm_dev_enter/exit, to make sure there's no races possible between
> driver hotunplug and concurrent access by userspace.
>
> The additional trouble is that users are really pissed when we crash
> their compositor just because they unplugged an usb display dongle or
> an usb projector thing. So the failure mode we're aiming for in drm
> for hotunplug is to be very graceful to userspace - experience says
> that userspace is even less likely to handle this correctly than the
> kernel. That's why we're refcounting drm_device and everything hanging
> off it, so that it sticks around and we can pretend to userspace that
> it's all still there (but disconnected from hw and the driver). Until
> userspace has gone around and managed to process the udev events and
> closed all open fds.
>
> Cheers, Daniel
> --
> Daniel Vetter
> Software Engineer, Intel Corporation
> +41 (0) 79 365 57 48 - http://blog.ffwll.ch
--
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 01/44] drivers/base: Always release devres on device_del
2020-04-03 14:51 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-03 15:01 ` Greg Kroah-Hartman
-1 siblings, 0 replies; 262+ messages in thread
From: Greg Kroah-Hartman @ 2020-04-03 15:01 UTC (permalink / raw)
To: Daniel Vetter
Cc: Daniel Vetter, Intel Graphics Development, DRI Development,
Rafael J. Wysocki
On Fri, Apr 03, 2020 at 04:51:33PM +0200, Daniel Vetter wrote:
> On Fri, Apr 3, 2020 at 4:47 PM Daniel Vetter <daniel.vetter@ffwll.ch> wrote:
> >
> > On Fri, Apr 3, 2020 at 4:17 PM Greg Kroah-Hartman
> > <gregkh@linuxfoundation.org> wrote:
> > >
> > > On Fri, Apr 03, 2020 at 03:57:45PM +0200, Daniel Vetter wrote:
> > > > In drm we've added nice drm_device (the main gpu driver thing, which
> > > > also represents the userspace interfaces and has everything else
> > > > dangling off it) init functions using devres, devm_drm_dev_init and
> > > > soon devm_drm_dev_alloc (this patch series adds that).
> > > >
> > > > A slight trouble is that drm_device itself holds a reference on the
> > > > struct device it's sitting on top (for sysfs links and dmesg debug and
> > > > lots of other things), so there's a reference loop. For real drivers
> > > > this is broken at remove/unplug time, where all devres resources are
> > > > released device_release_driver(), before the final device reference is
> > > > dropped. So far so good.
> > > >
> > > > There's 2 exceptions:
> > > > - drm/vkms|vgem: Virtual drivers for which we create a fake/virtual
> > > > platform device to make them look more like normal devices to
> > > > userspace. These aren't drivers in the driver model sense, we simple
> > > > create a platform_device and register it.
> > >
> > > That's a horrid abuse of platform devices, just use a "virtual" device
> > > please, create/remove it when you need it, and all should be fine.
> > >
> > > > - drm/i915/selftests, where we create minimal mock devices, and again
> > > > the selftests aren't proper drivers in the driver model sense.
> > >
> > > Again, virtual devices are best to use for this.
> >
> > Hm yeah, I guess we should fix that. i915 selftests do use raw struct
> > device though, and it's not really the problem.
> >
> > > > For these two cases the reference loop isn't broken, because devres is
> > > > only cleaned up when the last device reference is dropped. But that's
> > > > not happening, because the drm_device holds that last struct device
> > > > reference.
> > > >
> > > > Thus far this wasn't a problem since the above cases simply
> > > > hand-rolled their cleanup code. But I want to convert all drivers over
> > > > to the devm_ versions, hence it would be really nice if these
> > > > virtual/fake/mock uses-cases could also be managed with devres
> > > > cleanup.
> > > >
> > > > I see three possible approaches:
> > > >
> > > > - Clean up devres from device_del (or platform_device_unregister) even
> > > > when no driver is bound. This seems like the simplest solution, but
> > > > also the one with the widest impact, and what this patch implements.
> > > > We might want to include more of the cleanup than just
> > > > devres_release_all, but this is all I need to get my use case going.
> > >
> > > After device_del, you should never be using that structure again anyway.
> > > So why is there any "resource leak"? You can't recycle the structure,
> > > and you can't assign it to anything else, so eventually you have to do
> > > a final put on the thing, which will free up the resources.
> >
> > I guess I should have spent more time explaining this. There's two
> > references involved:
> >
> > - drm_device->dev points at the underlying struct device. The
> > drm_device holds a reference until it's fully cleaned up, so that we
> > can do nice stuff like use dev_ versions of printk functions, and you
> > always know that there's not going to be a use-after free.
> >
> > - now the other dependency is that as long as the device exists (not
> > just in memory, but in the device model, i.e. between device_add() and
> > device_del()) the drm_device should exist. So what we do in the
> > bus-specific remove/disconnect callback is that we call
> > drm_dev_unregister(). This drops the drm_device refcount that the drm
> > chardev was holding, to make sure that an open() on the chardev can
> > actually get at the memory without going boom. Then after the
> > drm_dev_unregister, again in the remove/disconnect callback of th
> > driver, there's a drm_dev_put(). Which might or might not be the final
> > drm_dev_put(), since if there's currently some open fd we keep the
> > refcount elevated, to avoid oopses and fun stuff like that. And
> > drm_device pointers get shared very widely, thanks to fun stuff like
> > dma_buf buffer sharing and dma_fence hw syncpt sharing across
> > processes and drivers.
> >
> > Once the final drm_dev_put() is called we also end up calling
> > put_device() and everything is happy.
> >
> > So far so good.
> >
> > Now the problem is that refcount is hard, and most drm drivers get it
> > wrong in some fashion or another, so I'm trying to solve all this with
> > more magic.
> >
> > Since all drivers need to have a drm_dev_put() at the end of their
> > driver's remove/disconnect callback we've added a devm_drm_dev_init
> > function which registers a devres action to do that drm_dev_put() at
> > device_del time (which might or might not be the final drm_dev_put()).
> > Nothing has changed thus far.
> >
> > Now this works really well because when you have a real driver model
> > driver attached, then device_del ends up calling devres_release_all(),
> > which ends up triggering the multi-stage cleanup of drm_devices. But
> > if you do _not_ have a real driver attached, then device_del does
> > nothing wrt devres cleanup. Instead this is delayed until the final
> > put_device().
> >
> > Unfortunately that final put_device() will never happen, because
> > drm_device is still holding a reference to the struct device. And the
> > final drm_dev_put of that drm_device will never happen, because that
> > drm_dev_put call is in a devres actions, which wont ever get called.
> >
> > This is the only case where this reference loop happens and doesn't
> > get broken. By calling devres_release_all at device_del time,
> > irrespective of whether a driver is bound or not, we make both cases
> > work the same. And at both cases the devres cleanup happens device_del
> > time, and not when the final put_device is called.
> >
> > Aside: The final put_device has another devres_release_all() call,
> > which given your explanation sounds very wrong - at that point the
> > physical device is long gone, and cleaning up devres actions at that
> > point is way too late. I think a good cleanup patch on top of this
> > would be to remove that call, and replace it with an assert that no
> > one managed to sneak in a devres_add_action between device_del and the
> > final put_device().
>
> I've done a bit more digging, and found this commit:
>
> commit a525a3ddeaca69f405d98442ab3c0746e53168dc
> Author: Ming Lei <tom.leiming@gmail.com>
> Date: Wed Jul 25 01:42:29 2012 +0800
>
> driver core: free devres in device_release
>
> Before this devres_release_all was called at device_del() time,
> unconditionally whether a driver was bound or not. Which seems to have
> been the intention at least back then. So in a way my patch simply
> restores that behaviour for the case where no driver has been bound to
> a device structure, but we still have devres resources hanging off it.
Hey, I was right, I guessed well :)
I'll respond to the parent email, but it looks like you can't do this,
sorry.
greg k-h
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [Intel-gfx] [PATCH 01/44] drivers/base: Always release devres on device_del
@ 2020-04-03 15:01 ` Greg Kroah-Hartman
0 siblings, 0 replies; 262+ messages in thread
From: Greg Kroah-Hartman @ 2020-04-03 15:01 UTC (permalink / raw)
To: Daniel Vetter
Cc: Daniel Vetter, Intel Graphics Development, DRI Development,
Rafael J. Wysocki
On Fri, Apr 03, 2020 at 04:51:33PM +0200, Daniel Vetter wrote:
> On Fri, Apr 3, 2020 at 4:47 PM Daniel Vetter <daniel.vetter@ffwll.ch> wrote:
> >
> > On Fri, Apr 3, 2020 at 4:17 PM Greg Kroah-Hartman
> > <gregkh@linuxfoundation.org> wrote:
> > >
> > > On Fri, Apr 03, 2020 at 03:57:45PM +0200, Daniel Vetter wrote:
> > > > In drm we've added nice drm_device (the main gpu driver thing, which
> > > > also represents the userspace interfaces and has everything else
> > > > dangling off it) init functions using devres, devm_drm_dev_init and
> > > > soon devm_drm_dev_alloc (this patch series adds that).
> > > >
> > > > A slight trouble is that drm_device itself holds a reference on the
> > > > struct device it's sitting on top (for sysfs links and dmesg debug and
> > > > lots of other things), so there's a reference loop. For real drivers
> > > > this is broken at remove/unplug time, where all devres resources are
> > > > released device_release_driver(), before the final device reference is
> > > > dropped. So far so good.
> > > >
> > > > There's 2 exceptions:
> > > > - drm/vkms|vgem: Virtual drivers for which we create a fake/virtual
> > > > platform device to make them look more like normal devices to
> > > > userspace. These aren't drivers in the driver model sense, we simple
> > > > create a platform_device and register it.
> > >
> > > That's a horrid abuse of platform devices, just use a "virtual" device
> > > please, create/remove it when you need it, and all should be fine.
> > >
> > > > - drm/i915/selftests, where we create minimal mock devices, and again
> > > > the selftests aren't proper drivers in the driver model sense.
> > >
> > > Again, virtual devices are best to use for this.
> >
> > Hm yeah, I guess we should fix that. i915 selftests do use raw struct
> > device though, and it's not really the problem.
> >
> > > > For these two cases the reference loop isn't broken, because devres is
> > > > only cleaned up when the last device reference is dropped. But that's
> > > > not happening, because the drm_device holds that last struct device
> > > > reference.
> > > >
> > > > Thus far this wasn't a problem since the above cases simply
> > > > hand-rolled their cleanup code. But I want to convert all drivers over
> > > > to the devm_ versions, hence it would be really nice if these
> > > > virtual/fake/mock uses-cases could also be managed with devres
> > > > cleanup.
> > > >
> > > > I see three possible approaches:
> > > >
> > > > - Clean up devres from device_del (or platform_device_unregister) even
> > > > when no driver is bound. This seems like the simplest solution, but
> > > > also the one with the widest impact, and what this patch implements.
> > > > We might want to include more of the cleanup than just
> > > > devres_release_all, but this is all I need to get my use case going.
> > >
> > > After device_del, you should never be using that structure again anyway.
> > > So why is there any "resource leak"? You can't recycle the structure,
> > > and you can't assign it to anything else, so eventually you have to do
> > > a final put on the thing, which will free up the resources.
> >
> > I guess I should have spent more time explaining this. There's two
> > references involved:
> >
> > - drm_device->dev points at the underlying struct device. The
> > drm_device holds a reference until it's fully cleaned up, so that we
> > can do nice stuff like use dev_ versions of printk functions, and you
> > always know that there's not going to be a use-after free.
> >
> > - now the other dependency is that as long as the device exists (not
> > just in memory, but in the device model, i.e. between device_add() and
> > device_del()) the drm_device should exist. So what we do in the
> > bus-specific remove/disconnect callback is that we call
> > drm_dev_unregister(). This drops the drm_device refcount that the drm
> > chardev was holding, to make sure that an open() on the chardev can
> > actually get at the memory without going boom. Then after the
> > drm_dev_unregister, again in the remove/disconnect callback of th
> > driver, there's a drm_dev_put(). Which might or might not be the final
> > drm_dev_put(), since if there's currently some open fd we keep the
> > refcount elevated, to avoid oopses and fun stuff like that. And
> > drm_device pointers get shared very widely, thanks to fun stuff like
> > dma_buf buffer sharing and dma_fence hw syncpt sharing across
> > processes and drivers.
> >
> > Once the final drm_dev_put() is called we also end up calling
> > put_device() and everything is happy.
> >
> > So far so good.
> >
> > Now the problem is that refcount is hard, and most drm drivers get it
> > wrong in some fashion or another, so I'm trying to solve all this with
> > more magic.
> >
> > Since all drivers need to have a drm_dev_put() at the end of their
> > driver's remove/disconnect callback we've added a devm_drm_dev_init
> > function which registers a devres action to do that drm_dev_put() at
> > device_del time (which might or might not be the final drm_dev_put()).
> > Nothing has changed thus far.
> >
> > Now this works really well because when you have a real driver model
> > driver attached, then device_del ends up calling devres_release_all(),
> > which ends up triggering the multi-stage cleanup of drm_devices. But
> > if you do _not_ have a real driver attached, then device_del does
> > nothing wrt devres cleanup. Instead this is delayed until the final
> > put_device().
> >
> > Unfortunately that final put_device() will never happen, because
> > drm_device is still holding a reference to the struct device. And the
> > final drm_dev_put of that drm_device will never happen, because that
> > drm_dev_put call is in a devres actions, which wont ever get called.
> >
> > This is the only case where this reference loop happens and doesn't
> > get broken. By calling devres_release_all at device_del time,
> > irrespective of whether a driver is bound or not, we make both cases
> > work the same. And at both cases the devres cleanup happens device_del
> > time, and not when the final put_device is called.
> >
> > Aside: The final put_device has another devres_release_all() call,
> > which given your explanation sounds very wrong - at that point the
> > physical device is long gone, and cleaning up devres actions at that
> > point is way too late. I think a good cleanup patch on top of this
> > would be to remove that call, and replace it with an assert that no
> > one managed to sneak in a devres_add_action between device_del and the
> > final put_device().
>
> I've done a bit more digging, and found this commit:
>
> commit a525a3ddeaca69f405d98442ab3c0746e53168dc
> Author: Ming Lei <tom.leiming@gmail.com>
> Date: Wed Jul 25 01:42:29 2012 +0800
>
> driver core: free devres in device_release
>
> Before this devres_release_all was called at device_del() time,
> unconditionally whether a driver was bound or not. Which seems to have
> been the intention at least back then. So in a way my patch simply
> restores that behaviour for the case where no driver has been bound to
> a device structure, but we still have devres resources hanging off it.
Hey, I was right, I guessed well :)
I'll respond to the parent email, but it looks like you can't do this,
sorry.
greg k-h
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 01/44] drivers/base: Always release devres on device_del
2020-04-03 14:47 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-03 15:06 ` Greg Kroah-Hartman
-1 siblings, 0 replies; 262+ messages in thread
From: Greg Kroah-Hartman @ 2020-04-03 15:06 UTC (permalink / raw)
To: Daniel Vetter
Cc: Daniel Vetter, Intel Graphics Development, DRI Development,
Rafael J. Wysocki
On Fri, Apr 03, 2020 at 04:47:04PM +0200, Daniel Vetter wrote:
> On Fri, Apr 3, 2020 at 4:17 PM Greg Kroah-Hartman
> <gregkh@linuxfoundation.org> wrote:
> >
> > On Fri, Apr 03, 2020 at 03:57:45PM +0200, Daniel Vetter wrote:
> > > In drm we've added nice drm_device (the main gpu driver thing, which
> > > also represents the userspace interfaces and has everything else
> > > dangling off it) init functions using devres, devm_drm_dev_init and
> > > soon devm_drm_dev_alloc (this patch series adds that).
> > >
> > > A slight trouble is that drm_device itself holds a reference on the
> > > struct device it's sitting on top (for sysfs links and dmesg debug and
> > > lots of other things), so there's a reference loop. For real drivers
> > > this is broken at remove/unplug time, where all devres resources are
> > > released device_release_driver(), before the final device reference is
> > > dropped. So far so good.
> > >
> > > There's 2 exceptions:
> > > - drm/vkms|vgem: Virtual drivers for which we create a fake/virtual
> > > platform device to make them look more like normal devices to
> > > userspace. These aren't drivers in the driver model sense, we simple
> > > create a platform_device and register it.
> >
> > That's a horrid abuse of platform devices, just use a "virtual" device
> > please, create/remove it when you need it, and all should be fine.
> >
> > > - drm/i915/selftests, where we create minimal mock devices, and again
> > > the selftests aren't proper drivers in the driver model sense.
> >
> > Again, virtual devices are best to use for this.
>
> Hm yeah, I guess we should fix that. i915 selftests do use raw struct
> device though, and it's not really the problem.
>
> > > For these two cases the reference loop isn't broken, because devres is
> > > only cleaned up when the last device reference is dropped. But that's
> > > not happening, because the drm_device holds that last struct device
> > > reference.
> > >
> > > Thus far this wasn't a problem since the above cases simply
> > > hand-rolled their cleanup code. But I want to convert all drivers over
> > > to the devm_ versions, hence it would be really nice if these
> > > virtual/fake/mock uses-cases could also be managed with devres
> > > cleanup.
> > >
> > > I see three possible approaches:
> > >
> > > - Clean up devres from device_del (or platform_device_unregister) even
> > > when no driver is bound. This seems like the simplest solution, but
> > > also the one with the widest impact, and what this patch implements.
> > > We might want to include more of the cleanup than just
> > > devres_release_all, but this is all I need to get my use case going.
> >
> > After device_del, you should never be using that structure again anyway.
> > So why is there any "resource leak"? You can't recycle the structure,
> > and you can't assign it to anything else, so eventually you have to do
> > a final put on the thing, which will free up the resources.
>
> I guess I should have spent more time explaining this. There's two
> references involved:
>
> - drm_device->dev points at the underlying struct device. The
> drm_device holds a reference until it's fully cleaned up, so that we
> can do nice stuff like use dev_ versions of printk functions, and you
> always know that there's not going to be a use-after free.
>
> - now the other dependency is that as long as the device exists (not
> just in memory, but in the device model, i.e. between device_add() and
> device_del()) the drm_device should exist. So what we do in the
> bus-specific remove/disconnect callback is that we call
> drm_dev_unregister(). This drops the drm_device refcount that the drm
> chardev was holding, to make sure that an open() on the chardev can
> actually get at the memory without going boom. Then after the
> drm_dev_unregister, again in the remove/disconnect callback of th
> driver, there's a drm_dev_put(). Which might or might not be the final
> drm_dev_put(), since if there's currently some open fd we keep the
> refcount elevated, to avoid oopses and fun stuff like that. And
> drm_device pointers get shared very widely, thanks to fun stuff like
> dma_buf buffer sharing and dma_fence hw syncpt sharing across
> processes and drivers.
>
> Once the final drm_dev_put() is called we also end up calling
> put_device() and everything is happy.
>
> So far so good.
>
> Now the problem is that refcount is hard, and most drm drivers get it
> wrong in some fashion or another, so I'm trying to solve all this with
> more magic.
Wait, no. Fix the drivers. Seriously, don't try to "bust" the
reference count logic here.
> Since all drivers need to have a drm_dev_put() at the end of their
> driver's remove/disconnect callback we've added a devm_drm_dev_init
> function which registers a devres action to do that drm_dev_put() at
> device_del time (which might or might not be the final drm_dev_put()).
> Nothing has changed thus far.
>
> Now this works really well because when you have a real driver model
> driver attached, then device_del ends up calling devres_release_all(),
> which ends up triggering the multi-stage cleanup of drm_devices. But
> if you do _not_ have a real driver attached, then device_del does
> nothing wrt devres cleanup. Instead this is delayed until the final
> put_device().
>
> Unfortunately that final put_device() will never happen, because
> drm_device is still holding a reference to the struct device. And the
> final drm_dev_put of that drm_device will never happen, because that
> drm_dev_put call is in a devres actions, which wont ever get called.
True, so fix the logic to do the final put_device() :)
> This is the only case where this reference loop happens and doesn't
> get broken. By calling devres_release_all at device_del time,
> irrespective of whether a driver is bound or not, we make both cases
> work the same. And at both cases the devres cleanup happens device_del
> time, and not when the final put_device is called.
So what is so odd about these random drivers that the normal process
does not work for them?
Along these lines, you might look into how the v4l developers finally
fixed this as they had much the same type of issues that you do with
regards to reference counting and resources and userspace file handles.
> Aside: The final put_device has another devres_release_all() call,
> which given your explanation sounds very wrong - at that point the
> physical device is long gone, and cleaning up devres actions at that
> point is way too late. I think a good cleanup patch on top of this
> would be to remove that call, and replace it with an assert that no
> one managed to sneak in a devres_add_action between device_del and the
> final put_device().
The physical device might be gone, but an open handle to the device
might still be around, keeping the structure in place and the driver
thinking it still has access to it's memory structures.
> > And then all should be fine, right? But, by putting the freeing here,
> > you can still have a "live" device that thinks it has resources availble
> > that it can access, but yet they are now gone. Yeah, it's probably not
> > ever going to really happen, but the lifecycles of dynamic devices are
> > tough to "prove" at times, and I worry that freeing things this early is
> > going to cause odd disconnect issues.
>
> Not exactly sure what you mean here, but trying to fix all the driver
> bugs we have in drm is why I'm doing this. We have a massive amount of
> gaps still, but we're slowly closing them all off with stuff like
> drm_dev_enter/exit, to make sure there's no races possible between
> driver hotunplug and concurrent access by userspace.
Again, look at what v4l did, I think it might work out for you all as
well.
thanks,
greg k-h
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [Intel-gfx] [PATCH 01/44] drivers/base: Always release devres on device_del
@ 2020-04-03 15:06 ` Greg Kroah-Hartman
0 siblings, 0 replies; 262+ messages in thread
From: Greg Kroah-Hartman @ 2020-04-03 15:06 UTC (permalink / raw)
To: Daniel Vetter
Cc: Daniel Vetter, Intel Graphics Development, DRI Development,
Rafael J. Wysocki
On Fri, Apr 03, 2020 at 04:47:04PM +0200, Daniel Vetter wrote:
> On Fri, Apr 3, 2020 at 4:17 PM Greg Kroah-Hartman
> <gregkh@linuxfoundation.org> wrote:
> >
> > On Fri, Apr 03, 2020 at 03:57:45PM +0200, Daniel Vetter wrote:
> > > In drm we've added nice drm_device (the main gpu driver thing, which
> > > also represents the userspace interfaces and has everything else
> > > dangling off it) init functions using devres, devm_drm_dev_init and
> > > soon devm_drm_dev_alloc (this patch series adds that).
> > >
> > > A slight trouble is that drm_device itself holds a reference on the
> > > struct device it's sitting on top (for sysfs links and dmesg debug and
> > > lots of other things), so there's a reference loop. For real drivers
> > > this is broken at remove/unplug time, where all devres resources are
> > > released device_release_driver(), before the final device reference is
> > > dropped. So far so good.
> > >
> > > There's 2 exceptions:
> > > - drm/vkms|vgem: Virtual drivers for which we create a fake/virtual
> > > platform device to make them look more like normal devices to
> > > userspace. These aren't drivers in the driver model sense, we simple
> > > create a platform_device and register it.
> >
> > That's a horrid abuse of platform devices, just use a "virtual" device
> > please, create/remove it when you need it, and all should be fine.
> >
> > > - drm/i915/selftests, where we create minimal mock devices, and again
> > > the selftests aren't proper drivers in the driver model sense.
> >
> > Again, virtual devices are best to use for this.
>
> Hm yeah, I guess we should fix that. i915 selftests do use raw struct
> device though, and it's not really the problem.
>
> > > For these two cases the reference loop isn't broken, because devres is
> > > only cleaned up when the last device reference is dropped. But that's
> > > not happening, because the drm_device holds that last struct device
> > > reference.
> > >
> > > Thus far this wasn't a problem since the above cases simply
> > > hand-rolled their cleanup code. But I want to convert all drivers over
> > > to the devm_ versions, hence it would be really nice if these
> > > virtual/fake/mock uses-cases could also be managed with devres
> > > cleanup.
> > >
> > > I see three possible approaches:
> > >
> > > - Clean up devres from device_del (or platform_device_unregister) even
> > > when no driver is bound. This seems like the simplest solution, but
> > > also the one with the widest impact, and what this patch implements.
> > > We might want to include more of the cleanup than just
> > > devres_release_all, but this is all I need to get my use case going.
> >
> > After device_del, you should never be using that structure again anyway.
> > So why is there any "resource leak"? You can't recycle the structure,
> > and you can't assign it to anything else, so eventually you have to do
> > a final put on the thing, which will free up the resources.
>
> I guess I should have spent more time explaining this. There's two
> references involved:
>
> - drm_device->dev points at the underlying struct device. The
> drm_device holds a reference until it's fully cleaned up, so that we
> can do nice stuff like use dev_ versions of printk functions, and you
> always know that there's not going to be a use-after free.
>
> - now the other dependency is that as long as the device exists (not
> just in memory, but in the device model, i.e. between device_add() and
> device_del()) the drm_device should exist. So what we do in the
> bus-specific remove/disconnect callback is that we call
> drm_dev_unregister(). This drops the drm_device refcount that the drm
> chardev was holding, to make sure that an open() on the chardev can
> actually get at the memory without going boom. Then after the
> drm_dev_unregister, again in the remove/disconnect callback of th
> driver, there's a drm_dev_put(). Which might or might not be the final
> drm_dev_put(), since if there's currently some open fd we keep the
> refcount elevated, to avoid oopses and fun stuff like that. And
> drm_device pointers get shared very widely, thanks to fun stuff like
> dma_buf buffer sharing and dma_fence hw syncpt sharing across
> processes and drivers.
>
> Once the final drm_dev_put() is called we also end up calling
> put_device() and everything is happy.
>
> So far so good.
>
> Now the problem is that refcount is hard, and most drm drivers get it
> wrong in some fashion or another, so I'm trying to solve all this with
> more magic.
Wait, no. Fix the drivers. Seriously, don't try to "bust" the
reference count logic here.
> Since all drivers need to have a drm_dev_put() at the end of their
> driver's remove/disconnect callback we've added a devm_drm_dev_init
> function which registers a devres action to do that drm_dev_put() at
> device_del time (which might or might not be the final drm_dev_put()).
> Nothing has changed thus far.
>
> Now this works really well because when you have a real driver model
> driver attached, then device_del ends up calling devres_release_all(),
> which ends up triggering the multi-stage cleanup of drm_devices. But
> if you do _not_ have a real driver attached, then device_del does
> nothing wrt devres cleanup. Instead this is delayed until the final
> put_device().
>
> Unfortunately that final put_device() will never happen, because
> drm_device is still holding a reference to the struct device. And the
> final drm_dev_put of that drm_device will never happen, because that
> drm_dev_put call is in a devres actions, which wont ever get called.
True, so fix the logic to do the final put_device() :)
> This is the only case where this reference loop happens and doesn't
> get broken. By calling devres_release_all at device_del time,
> irrespective of whether a driver is bound or not, we make both cases
> work the same. And at both cases the devres cleanup happens device_del
> time, and not when the final put_device is called.
So what is so odd about these random drivers that the normal process
does not work for them?
Along these lines, you might look into how the v4l developers finally
fixed this as they had much the same type of issues that you do with
regards to reference counting and resources and userspace file handles.
> Aside: The final put_device has another devres_release_all() call,
> which given your explanation sounds very wrong - at that point the
> physical device is long gone, and cleaning up devres actions at that
> point is way too late. I think a good cleanup patch on top of this
> would be to remove that call, and replace it with an assert that no
> one managed to sneak in a devres_add_action between device_del and the
> final put_device().
The physical device might be gone, but an open handle to the device
might still be around, keeping the structure in place and the driver
thinking it still has access to it's memory structures.
> > And then all should be fine, right? But, by putting the freeing here,
> > you can still have a "live" device that thinks it has resources availble
> > that it can access, but yet they are now gone. Yeah, it's probably not
> > ever going to really happen, but the lifecycles of dynamic devices are
> > tough to "prove" at times, and I worry that freeing things this early is
> > going to cause odd disconnect issues.
>
> Not exactly sure what you mean here, but trying to fix all the driver
> bugs we have in drm is why I'm doing this. We have a massive amount of
> gaps still, but we're slowly closing them all off with stuff like
> drm_dev_enter/exit, to make sure there's no races possible between
> driver hotunplug and concurrent access by userspace.
Again, look at what v4l did, I think it might work out for you all as
well.
thanks,
greg k-h
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 01/44] drivers/base: Always release devres on device_del
2020-04-03 15:06 ` [Intel-gfx] " Greg Kroah-Hartman
@ 2020-04-03 15:15 ` Daniel Vetter
-1 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 15:15 UTC (permalink / raw)
To: Greg Kroah-Hartman
Cc: Daniel Vetter, Intel Graphics Development, DRI Development,
Rafael J. Wysocki
On Fri, Apr 3, 2020 at 5:06 PM Greg Kroah-Hartman
<gregkh@linuxfoundation.org> wrote:
>
> On Fri, Apr 03, 2020 at 04:47:04PM +0200, Daniel Vetter wrote:
> > On Fri, Apr 3, 2020 at 4:17 PM Greg Kroah-Hartman
> > <gregkh@linuxfoundation.org> wrote:
> > >
> > > On Fri, Apr 03, 2020 at 03:57:45PM +0200, Daniel Vetter wrote:
> > > > In drm we've added nice drm_device (the main gpu driver thing, which
> > > > also represents the userspace interfaces and has everything else
> > > > dangling off it) init functions using devres, devm_drm_dev_init and
> > > > soon devm_drm_dev_alloc (this patch series adds that).
> > > >
> > > > A slight trouble is that drm_device itself holds a reference on the
> > > > struct device it's sitting on top (for sysfs links and dmesg debug and
> > > > lots of other things), so there's a reference loop. For real drivers
> > > > this is broken at remove/unplug time, where all devres resources are
> > > > released device_release_driver(), before the final device reference is
> > > > dropped. So far so good.
> > > >
> > > > There's 2 exceptions:
> > > > - drm/vkms|vgem: Virtual drivers for which we create a fake/virtual
> > > > platform device to make them look more like normal devices to
> > > > userspace. These aren't drivers in the driver model sense, we simple
> > > > create a platform_device and register it.
> > >
> > > That's a horrid abuse of platform devices, just use a "virtual" device
> > > please, create/remove it when you need it, and all should be fine.
> > >
> > > > - drm/i915/selftests, where we create minimal mock devices, and again
> > > > the selftests aren't proper drivers in the driver model sense.
> > >
> > > Again, virtual devices are best to use for this.
> >
> > Hm yeah, I guess we should fix that. i915 selftests do use raw struct
> > device though, and it's not really the problem.
> >
> > > > For these two cases the reference loop isn't broken, because devres is
> > > > only cleaned up when the last device reference is dropped. But that's
> > > > not happening, because the drm_device holds that last struct device
> > > > reference.
> > > >
> > > > Thus far this wasn't a problem since the above cases simply
> > > > hand-rolled their cleanup code. But I want to convert all drivers over
> > > > to the devm_ versions, hence it would be really nice if these
> > > > virtual/fake/mock uses-cases could also be managed with devres
> > > > cleanup.
> > > >
> > > > I see three possible approaches:
> > > >
> > > > - Clean up devres from device_del (or platform_device_unregister) even
> > > > when no driver is bound. This seems like the simplest solution, but
> > > > also the one with the widest impact, and what this patch implements.
> > > > We might want to include more of the cleanup than just
> > > > devres_release_all, but this is all I need to get my use case going.
> > >
> > > After device_del, you should never be using that structure again anyway.
> > > So why is there any "resource leak"? You can't recycle the structure,
> > > and you can't assign it to anything else, so eventually you have to do
> > > a final put on the thing, which will free up the resources.
> >
> > I guess I should have spent more time explaining this. There's two
> > references involved:
> >
> > - drm_device->dev points at the underlying struct device. The
> > drm_device holds a reference until it's fully cleaned up, so that we
> > can do nice stuff like use dev_ versions of printk functions, and you
> > always know that there's not going to be a use-after free.
> >
> > - now the other dependency is that as long as the device exists (not
> > just in memory, but in the device model, i.e. between device_add() and
> > device_del()) the drm_device should exist. So what we do in the
> > bus-specific remove/disconnect callback is that we call
> > drm_dev_unregister(). This drops the drm_device refcount that the drm
> > chardev was holding, to make sure that an open() on the chardev can
> > actually get at the memory without going boom. Then after the
> > drm_dev_unregister, again in the remove/disconnect callback of th
> > driver, there's a drm_dev_put(). Which might or might not be the final
> > drm_dev_put(), since if there's currently some open fd we keep the
> > refcount elevated, to avoid oopses and fun stuff like that. And
> > drm_device pointers get shared very widely, thanks to fun stuff like
> > dma_buf buffer sharing and dma_fence hw syncpt sharing across
> > processes and drivers.
> >
> > Once the final drm_dev_put() is called we also end up calling
> > put_device() and everything is happy.
> >
> > So far so good.
> >
> > Now the problem is that refcount is hard, and most drm drivers get it
> > wrong in some fashion or another, so I'm trying to solve all this with
> > more magic.
>
> Wait, no. Fix the drivers. Seriously, don't try to "bust" the
> reference count logic here.
I guess still not clear. What I'm doing is fixing the drivers. But
because they all get it wrong, I'm trying to hide as much of the
refcounting as possible behind functions which do the right thing.
Which works great for the epic pile of real hw drivers that we have.
The problem I have is is _only_ with those drm drivers which run on
fake hw. For those forcing them to use the exact same functions as the
real hw drivers has some challenges, because they're not really real
drivers. Now the original patch had 3 ideas for how to make things
work for those fake drivers too, with one of them implemented in this
patch (the one that required the least amount of typing on my part).
You harping that I'm getting the refcounting wrong is kinda totally
missing the point, because that's what I'm doing.
> > Since all drivers need to have a drm_dev_put() at the end of their
> > driver's remove/disconnect callback we've added a devm_drm_dev_init
> > function which registers a devres action to do that drm_dev_put() at
> > device_del time (which might or might not be the final drm_dev_put()).
> > Nothing has changed thus far.
> >
> > Now this works really well because when you have a real driver model
> > driver attached, then device_del ends up calling devres_release_all(),
> > which ends up triggering the multi-stage cleanup of drm_devices. But
> > if you do _not_ have a real driver attached, then device_del does
> > nothing wrt devres cleanup. Instead this is delayed until the final
> > put_device().
> >
> > Unfortunately that final put_device() will never happen, because
> > drm_device is still holding a reference to the struct device. And the
> > final drm_dev_put of that drm_device will never happen, because that
> > drm_dev_put call is in a devres actions, which wont ever get called.
>
> True, so fix the logic to do the final put_device() :)
>
> > This is the only case where this reference loop happens and doesn't
> > get broken. By calling devres_release_all at device_del time,
> > irrespective of whether a driver is bound or not, we make both cases
> > work the same. And at both cases the devres cleanup happens device_del
> > time, and not when the final put_device is called.
>
> So what is so odd about these random drivers that the normal process
> does not work for them?
They're not drivers in the driver model sense.
> Along these lines, you might look into how the v4l developers finally
> fixed this as they had much the same type of issues that you do with
> regards to reference counting and resources and userspace file handles.
We have a pile of v4l developers on dri-devel, they've been reviewing
the stuff we've been doing in drm over the past 2-3 years already ...
> > Aside: The final put_device has another devres_release_all() call,
> > which given your explanation sounds very wrong - at that point the
> > physical device is long gone, and cleaning up devres actions at that
> > point is way too late. I think a good cleanup patch on top of this
> > would be to remove that call, and replace it with an assert that no
> > one managed to sneak in a devres_add_action between device_del and the
> > final put_device().
>
> The physical device might be gone, but an open handle to the device
> might still be around, keeping the structure in place and the driver
> thinking it still has access to it's memory structures.
I understand that. This is not the problem I'm having here, we've
fixed that problem a while ago (at least in drm core, but the drivers
have a bit a harder time picking up the correct coding patterns,
mostly because there's overwhelming code in existing drivers that's
just plain broken).
> > > And then all should be fine, right? But, by putting the freeing here,
> > > you can still have a "live" device that thinks it has resources availble
> > > that it can access, but yet they are now gone. Yeah, it's probably not
> > > ever going to really happen, but the lifecycles of dynamic devices are
> > > tough to "prove" at times, and I worry that freeing things this early is
> > > going to cause odd disconnect issues.
> >
> > Not exactly sure what you mean here, but trying to fix all the driver
> > bugs we have in drm is why I'm doing this. We have a massive amount of
> > gaps still, but we're slowly closing them all off with stuff like
> > drm_dev_enter/exit, to make sure there's no races possible between
> > driver hotunplug and concurrent access by userspace.
>
> Again, look at what v4l did, I think it might work out for you all as
> well.
I think we're talking past each another quite badly here ...
-Daniel
--
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [Intel-gfx] [PATCH 01/44] drivers/base: Always release devres on device_del
@ 2020-04-03 15:15 ` Daniel Vetter
0 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 15:15 UTC (permalink / raw)
To: Greg Kroah-Hartman
Cc: Daniel Vetter, Intel Graphics Development, DRI Development,
Rafael J. Wysocki
On Fri, Apr 3, 2020 at 5:06 PM Greg Kroah-Hartman
<gregkh@linuxfoundation.org> wrote:
>
> On Fri, Apr 03, 2020 at 04:47:04PM +0200, Daniel Vetter wrote:
> > On Fri, Apr 3, 2020 at 4:17 PM Greg Kroah-Hartman
> > <gregkh@linuxfoundation.org> wrote:
> > >
> > > On Fri, Apr 03, 2020 at 03:57:45PM +0200, Daniel Vetter wrote:
> > > > In drm we've added nice drm_device (the main gpu driver thing, which
> > > > also represents the userspace interfaces and has everything else
> > > > dangling off it) init functions using devres, devm_drm_dev_init and
> > > > soon devm_drm_dev_alloc (this patch series adds that).
> > > >
> > > > A slight trouble is that drm_device itself holds a reference on the
> > > > struct device it's sitting on top (for sysfs links and dmesg debug and
> > > > lots of other things), so there's a reference loop. For real drivers
> > > > this is broken at remove/unplug time, where all devres resources are
> > > > released device_release_driver(), before the final device reference is
> > > > dropped. So far so good.
> > > >
> > > > There's 2 exceptions:
> > > > - drm/vkms|vgem: Virtual drivers for which we create a fake/virtual
> > > > platform device to make them look more like normal devices to
> > > > userspace. These aren't drivers in the driver model sense, we simple
> > > > create a platform_device and register it.
> > >
> > > That's a horrid abuse of platform devices, just use a "virtual" device
> > > please, create/remove it when you need it, and all should be fine.
> > >
> > > > - drm/i915/selftests, where we create minimal mock devices, and again
> > > > the selftests aren't proper drivers in the driver model sense.
> > >
> > > Again, virtual devices are best to use for this.
> >
> > Hm yeah, I guess we should fix that. i915 selftests do use raw struct
> > device though, and it's not really the problem.
> >
> > > > For these two cases the reference loop isn't broken, because devres is
> > > > only cleaned up when the last device reference is dropped. But that's
> > > > not happening, because the drm_device holds that last struct device
> > > > reference.
> > > >
> > > > Thus far this wasn't a problem since the above cases simply
> > > > hand-rolled their cleanup code. But I want to convert all drivers over
> > > > to the devm_ versions, hence it would be really nice if these
> > > > virtual/fake/mock uses-cases could also be managed with devres
> > > > cleanup.
> > > >
> > > > I see three possible approaches:
> > > >
> > > > - Clean up devres from device_del (or platform_device_unregister) even
> > > > when no driver is bound. This seems like the simplest solution, but
> > > > also the one with the widest impact, and what this patch implements.
> > > > We might want to include more of the cleanup than just
> > > > devres_release_all, but this is all I need to get my use case going.
> > >
> > > After device_del, you should never be using that structure again anyway.
> > > So why is there any "resource leak"? You can't recycle the structure,
> > > and you can't assign it to anything else, so eventually you have to do
> > > a final put on the thing, which will free up the resources.
> >
> > I guess I should have spent more time explaining this. There's two
> > references involved:
> >
> > - drm_device->dev points at the underlying struct device. The
> > drm_device holds a reference until it's fully cleaned up, so that we
> > can do nice stuff like use dev_ versions of printk functions, and you
> > always know that there's not going to be a use-after free.
> >
> > - now the other dependency is that as long as the device exists (not
> > just in memory, but in the device model, i.e. between device_add() and
> > device_del()) the drm_device should exist. So what we do in the
> > bus-specific remove/disconnect callback is that we call
> > drm_dev_unregister(). This drops the drm_device refcount that the drm
> > chardev was holding, to make sure that an open() on the chardev can
> > actually get at the memory without going boom. Then after the
> > drm_dev_unregister, again in the remove/disconnect callback of th
> > driver, there's a drm_dev_put(). Which might or might not be the final
> > drm_dev_put(), since if there's currently some open fd we keep the
> > refcount elevated, to avoid oopses and fun stuff like that. And
> > drm_device pointers get shared very widely, thanks to fun stuff like
> > dma_buf buffer sharing and dma_fence hw syncpt sharing across
> > processes and drivers.
> >
> > Once the final drm_dev_put() is called we also end up calling
> > put_device() and everything is happy.
> >
> > So far so good.
> >
> > Now the problem is that refcount is hard, and most drm drivers get it
> > wrong in some fashion or another, so I'm trying to solve all this with
> > more magic.
>
> Wait, no. Fix the drivers. Seriously, don't try to "bust" the
> reference count logic here.
I guess still not clear. What I'm doing is fixing the drivers. But
because they all get it wrong, I'm trying to hide as much of the
refcounting as possible behind functions which do the right thing.
Which works great for the epic pile of real hw drivers that we have.
The problem I have is is _only_ with those drm drivers which run on
fake hw. For those forcing them to use the exact same functions as the
real hw drivers has some challenges, because they're not really real
drivers. Now the original patch had 3 ideas for how to make things
work for those fake drivers too, with one of them implemented in this
patch (the one that required the least amount of typing on my part).
You harping that I'm getting the refcounting wrong is kinda totally
missing the point, because that's what I'm doing.
> > Since all drivers need to have a drm_dev_put() at the end of their
> > driver's remove/disconnect callback we've added a devm_drm_dev_init
> > function which registers a devres action to do that drm_dev_put() at
> > device_del time (which might or might not be the final drm_dev_put()).
> > Nothing has changed thus far.
> >
> > Now this works really well because when you have a real driver model
> > driver attached, then device_del ends up calling devres_release_all(),
> > which ends up triggering the multi-stage cleanup of drm_devices. But
> > if you do _not_ have a real driver attached, then device_del does
> > nothing wrt devres cleanup. Instead this is delayed until the final
> > put_device().
> >
> > Unfortunately that final put_device() will never happen, because
> > drm_device is still holding a reference to the struct device. And the
> > final drm_dev_put of that drm_device will never happen, because that
> > drm_dev_put call is in a devres actions, which wont ever get called.
>
> True, so fix the logic to do the final put_device() :)
>
> > This is the only case where this reference loop happens and doesn't
> > get broken. By calling devres_release_all at device_del time,
> > irrespective of whether a driver is bound or not, we make both cases
> > work the same. And at both cases the devres cleanup happens device_del
> > time, and not when the final put_device is called.
>
> So what is so odd about these random drivers that the normal process
> does not work for them?
They're not drivers in the driver model sense.
> Along these lines, you might look into how the v4l developers finally
> fixed this as they had much the same type of issues that you do with
> regards to reference counting and resources and userspace file handles.
We have a pile of v4l developers on dri-devel, they've been reviewing
the stuff we've been doing in drm over the past 2-3 years already ...
> > Aside: The final put_device has another devres_release_all() call,
> > which given your explanation sounds very wrong - at that point the
> > physical device is long gone, and cleaning up devres actions at that
> > point is way too late. I think a good cleanup patch on top of this
> > would be to remove that call, and replace it with an assert that no
> > one managed to sneak in a devres_add_action between device_del and the
> > final put_device().
>
> The physical device might be gone, but an open handle to the device
> might still be around, keeping the structure in place and the driver
> thinking it still has access to it's memory structures.
I understand that. This is not the problem I'm having here, we've
fixed that problem a while ago (at least in drm core, but the drivers
have a bit a harder time picking up the correct coding patterns,
mostly because there's overwhelming code in existing drivers that's
just plain broken).
> > > And then all should be fine, right? But, by putting the freeing here,
> > > you can still have a "live" device that thinks it has resources availble
> > > that it can access, but yet they are now gone. Yeah, it's probably not
> > > ever going to really happen, but the lifecycles of dynamic devices are
> > > tough to "prove" at times, and I worry that freeing things this early is
> > > going to cause odd disconnect issues.
> >
> > Not exactly sure what you mean here, but trying to fix all the driver
> > bugs we have in drm is why I'm doing this. We have a massive amount of
> > gaps still, but we're slowly closing them all off with stuff like
> > drm_dev_enter/exit, to make sure there's no races possible between
> > driver hotunplug and concurrent access by userspace.
>
> Again, look at what v4l did, I think it might work out for you all as
> well.
I think we're talking past each another quite badly here ...
-Daniel
--
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 01/44] drivers/base: Always release devres on device_del
2020-04-03 15:15 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-03 15:33 ` Daniel Vetter
-1 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 15:33 UTC (permalink / raw)
To: Greg Kroah-Hartman
Cc: Daniel Vetter, Intel Graphics Development, DRI Development,
Rafael J. Wysocki
On Fri, Apr 3, 2020 at 5:15 PM Daniel Vetter <daniel.vetter@ffwll.ch> wrote:
>
> On Fri, Apr 3, 2020 at 5:06 PM Greg Kroah-Hartman
> <gregkh@linuxfoundation.org> wrote:
> >
> > On Fri, Apr 03, 2020 at 04:47:04PM +0200, Daniel Vetter wrote:
> > > On Fri, Apr 3, 2020 at 4:17 PM Greg Kroah-Hartman
> > > <gregkh@linuxfoundation.org> wrote:
> > > >
> > > > On Fri, Apr 03, 2020 at 03:57:45PM +0200, Daniel Vetter wrote:
> > > > > In drm we've added nice drm_device (the main gpu driver thing, which
> > > > > also represents the userspace interfaces and has everything else
> > > > > dangling off it) init functions using devres, devm_drm_dev_init and
> > > > > soon devm_drm_dev_alloc (this patch series adds that).
> > > > >
> > > > > A slight trouble is that drm_device itself holds a reference on the
> > > > > struct device it's sitting on top (for sysfs links and dmesg debug and
> > > > > lots of other things), so there's a reference loop. For real drivers
> > > > > this is broken at remove/unplug time, where all devres resources are
> > > > > released device_release_driver(), before the final device reference is
> > > > > dropped. So far so good.
> > > > >
> > > > > There's 2 exceptions:
> > > > > - drm/vkms|vgem: Virtual drivers for which we create a fake/virtual
> > > > > platform device to make them look more like normal devices to
> > > > > userspace. These aren't drivers in the driver model sense, we simple
> > > > > create a platform_device and register it.
> > > >
> > > > That's a horrid abuse of platform devices, just use a "virtual" device
> > > > please, create/remove it when you need it, and all should be fine.
> > > >
> > > > > - drm/i915/selftests, where we create minimal mock devices, and again
> > > > > the selftests aren't proper drivers in the driver model sense.
> > > >
> > > > Again, virtual devices are best to use for this.
> > >
> > > Hm yeah, I guess we should fix that. i915 selftests do use raw struct
> > > device though, and it's not really the problem.
> > >
> > > > > For these two cases the reference loop isn't broken, because devres is
> > > > > only cleaned up when the last device reference is dropped. But that's
> > > > > not happening, because the drm_device holds that last struct device
> > > > > reference.
> > > > >
> > > > > Thus far this wasn't a problem since the above cases simply
> > > > > hand-rolled their cleanup code. But I want to convert all drivers over
> > > > > to the devm_ versions, hence it would be really nice if these
> > > > > virtual/fake/mock uses-cases could also be managed with devres
> > > > > cleanup.
> > > > >
> > > > > I see three possible approaches:
> > > > >
> > > > > - Clean up devres from device_del (or platform_device_unregister) even
> > > > > when no driver is bound. This seems like the simplest solution, but
> > > > > also the one with the widest impact, and what this patch implements.
> > > > > We might want to include more of the cleanup than just
> > > > > devres_release_all, but this is all I need to get my use case going.
> > > >
> > > > After device_del, you should never be using that structure again anyway.
> > > > So why is there any "resource leak"? You can't recycle the structure,
> > > > and you can't assign it to anything else, so eventually you have to do
> > > > a final put on the thing, which will free up the resources.
> > >
> > > I guess I should have spent more time explaining this. There's two
> > > references involved:
> > >
> > > - drm_device->dev points at the underlying struct device. The
> > > drm_device holds a reference until it's fully cleaned up, so that we
> > > can do nice stuff like use dev_ versions of printk functions, and you
> > > always know that there's not going to be a use-after free.
> > >
> > > - now the other dependency is that as long as the device exists (not
> > > just in memory, but in the device model, i.e. between device_add() and
> > > device_del()) the drm_device should exist. So what we do in the
> > > bus-specific remove/disconnect callback is that we call
> > > drm_dev_unregister(). This drops the drm_device refcount that the drm
> > > chardev was holding, to make sure that an open() on the chardev can
> > > actually get at the memory without going boom. Then after the
> > > drm_dev_unregister, again in the remove/disconnect callback of th
> > > driver, there's a drm_dev_put(). Which might or might not be the final
> > > drm_dev_put(), since if there's currently some open fd we keep the
> > > refcount elevated, to avoid oopses and fun stuff like that. And
> > > drm_device pointers get shared very widely, thanks to fun stuff like
> > > dma_buf buffer sharing and dma_fence hw syncpt sharing across
> > > processes and drivers.
> > >
> > > Once the final drm_dev_put() is called we also end up calling
> > > put_device() and everything is happy.
> > >
> > > So far so good.
> > >
> > > Now the problem is that refcount is hard, and most drm drivers get it
> > > wrong in some fashion or another, so I'm trying to solve all this with
> > > more magic.
> >
> > Wait, no. Fix the drivers. Seriously, don't try to "bust" the
> > reference count logic here.
>
> I guess still not clear. What I'm doing is fixing the drivers. But
> because they all get it wrong, I'm trying to hide as much of the
> refcounting as possible behind functions which do the right thing.
>
> Which works great for the epic pile of real hw drivers that we have.
>
> The problem I have is is _only_ with those drm drivers which run on
> fake hw. For those forcing them to use the exact same functions as the
> real hw drivers has some challenges, because they're not really real
> drivers. Now the original patch had 3 ideas for how to make things
> work for those fake drivers too, with one of them implemented in this
> patch (the one that required the least amount of typing on my part).
>
> You harping that I'm getting the refcounting wrong is kinda totally
> missing the point, because that's what I'm doing.
>
> > > Since all drivers need to have a drm_dev_put() at the end of their
> > > driver's remove/disconnect callback we've added a devm_drm_dev_init
> > > function which registers a devres action to do that drm_dev_put() at
> > > device_del time (which might or might not be the final drm_dev_put()).
> > > Nothing has changed thus far.
> > >
> > > Now this works really well because when you have a real driver model
> > > driver attached, then device_del ends up calling devres_release_all(),
> > > which ends up triggering the multi-stage cleanup of drm_devices. But
> > > if you do _not_ have a real driver attached, then device_del does
> > > nothing wrt devres cleanup. Instead this is delayed until the final
> > > put_device().
> > >
> > > Unfortunately that final put_device() will never happen, because
> > > drm_device is still holding a reference to the struct device. And the
> > > final drm_dev_put of that drm_device will never happen, because that
> > > drm_dev_put call is in a devres actions, which wont ever get called.
> >
> > True, so fix the logic to do the final put_device() :)
> >
> > > This is the only case where this reference loop happens and doesn't
> > > get broken. By calling devres_release_all at device_del time,
> > > irrespective of whether a driver is bound or not, we make both cases
> > > work the same. And at both cases the devres cleanup happens device_del
> > > time, and not when the final put_device is called.
> >
> > So what is so odd about these random drivers that the normal process
> > does not work for them?
>
> They're not drivers in the driver model sense.
>
> > Along these lines, you might look into how the v4l developers finally
> > fixed this as they had much the same type of issues that you do with
> > regards to reference counting and resources and userspace file handles.
>
> We have a pile of v4l developers on dri-devel, they've been reviewing
> the stuff we've been doing in drm over the past 2-3 years already ...
>
> > > Aside: The final put_device has another devres_release_all() call,
> > > which given your explanation sounds very wrong - at that point the
> > > physical device is long gone, and cleaning up devres actions at that
> > > point is way too late. I think a good cleanup patch on top of this
> > > would be to remove that call, and replace it with an assert that no
> > > one managed to sneak in a devres_add_action between device_del and the
> > > final put_device().
> >
> > The physical device might be gone, but an open handle to the device
> > might still be around, keeping the structure in place and the driver
> > thinking it still has access to it's memory structures.
>
> I understand that. This is not the problem I'm having here, we've
> fixed that problem a while ago (at least in drm core, but the drivers
> have a bit a harder time picking up the correct coding patterns,
> mostly because there's overwhelming code in existing drivers that's
> just plain broken).
>
> > > > And then all should be fine, right? But, by putting the freeing here,
> > > > you can still have a "live" device that thinks it has resources availble
> > > > that it can access, but yet they are now gone. Yeah, it's probably not
> > > > ever going to really happen, but the lifecycles of dynamic devices are
> > > > tough to "prove" at times, and I worry that freeing things this early is
> > > > going to cause odd disconnect issues.
> > >
> > > Not exactly sure what you mean here, but trying to fix all the driver
> > > bugs we have in drm is why I'm doing this. We have a massive amount of
> > > gaps still, but we're slowly closing them all off with stuff like
> > > drm_dev_enter/exit, to make sure there's no races possible between
> > > driver hotunplug and concurrent access by userspace.
> >
> > Again, look at what v4l did, I think it might work out for you all as
> > well.
>
> I think we're talking past each another quite badly here ...
So I've read through the v4l register/unregister code for the cdev,
and in spirit it matches what we're doing with drm_device. In practice
the drm version is a lot more complicated, mostly because our uapi is
kinda hilarious and our single userspace-facing object is exposed
through an entire set of of different cdev (the one I have here has
like at 5 different cdev registered ...).
The other big difference that I'm seeing is that our equivalent of
video_unregister_device is split up, i.e. we're not using the
equivalent of device_unregister, but the device_del and put_device
that one boils down is split up, with some things happening in
between. Mostly because developers insist that when they remove/unbind
a driver, we're supposed to shut down the display hardware, instead of
just continuing to scan out garbage. Otherwise we could just use the
merged device_unregister().
tldr; I'm not seeing what we're doing totally wrong compared to v4l ...
-Daniel
--
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [Intel-gfx] [PATCH 01/44] drivers/base: Always release devres on device_del
@ 2020-04-03 15:33 ` Daniel Vetter
0 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 15:33 UTC (permalink / raw)
To: Greg Kroah-Hartman
Cc: Daniel Vetter, Intel Graphics Development, DRI Development,
Rafael J. Wysocki
On Fri, Apr 3, 2020 at 5:15 PM Daniel Vetter <daniel.vetter@ffwll.ch> wrote:
>
> On Fri, Apr 3, 2020 at 5:06 PM Greg Kroah-Hartman
> <gregkh@linuxfoundation.org> wrote:
> >
> > On Fri, Apr 03, 2020 at 04:47:04PM +0200, Daniel Vetter wrote:
> > > On Fri, Apr 3, 2020 at 4:17 PM Greg Kroah-Hartman
> > > <gregkh@linuxfoundation.org> wrote:
> > > >
> > > > On Fri, Apr 03, 2020 at 03:57:45PM +0200, Daniel Vetter wrote:
> > > > > In drm we've added nice drm_device (the main gpu driver thing, which
> > > > > also represents the userspace interfaces and has everything else
> > > > > dangling off it) init functions using devres, devm_drm_dev_init and
> > > > > soon devm_drm_dev_alloc (this patch series adds that).
> > > > >
> > > > > A slight trouble is that drm_device itself holds a reference on the
> > > > > struct device it's sitting on top (for sysfs links and dmesg debug and
> > > > > lots of other things), so there's a reference loop. For real drivers
> > > > > this is broken at remove/unplug time, where all devres resources are
> > > > > released device_release_driver(), before the final device reference is
> > > > > dropped. So far so good.
> > > > >
> > > > > There's 2 exceptions:
> > > > > - drm/vkms|vgem: Virtual drivers for which we create a fake/virtual
> > > > > platform device to make them look more like normal devices to
> > > > > userspace. These aren't drivers in the driver model sense, we simple
> > > > > create a platform_device and register it.
> > > >
> > > > That's a horrid abuse of platform devices, just use a "virtual" device
> > > > please, create/remove it when you need it, and all should be fine.
> > > >
> > > > > - drm/i915/selftests, where we create minimal mock devices, and again
> > > > > the selftests aren't proper drivers in the driver model sense.
> > > >
> > > > Again, virtual devices are best to use for this.
> > >
> > > Hm yeah, I guess we should fix that. i915 selftests do use raw struct
> > > device though, and it's not really the problem.
> > >
> > > > > For these two cases the reference loop isn't broken, because devres is
> > > > > only cleaned up when the last device reference is dropped. But that's
> > > > > not happening, because the drm_device holds that last struct device
> > > > > reference.
> > > > >
> > > > > Thus far this wasn't a problem since the above cases simply
> > > > > hand-rolled their cleanup code. But I want to convert all drivers over
> > > > > to the devm_ versions, hence it would be really nice if these
> > > > > virtual/fake/mock uses-cases could also be managed with devres
> > > > > cleanup.
> > > > >
> > > > > I see three possible approaches:
> > > > >
> > > > > - Clean up devres from device_del (or platform_device_unregister) even
> > > > > when no driver is bound. This seems like the simplest solution, but
> > > > > also the one with the widest impact, and what this patch implements.
> > > > > We might want to include more of the cleanup than just
> > > > > devres_release_all, but this is all I need to get my use case going.
> > > >
> > > > After device_del, you should never be using that structure again anyway.
> > > > So why is there any "resource leak"? You can't recycle the structure,
> > > > and you can't assign it to anything else, so eventually you have to do
> > > > a final put on the thing, which will free up the resources.
> > >
> > > I guess I should have spent more time explaining this. There's two
> > > references involved:
> > >
> > > - drm_device->dev points at the underlying struct device. The
> > > drm_device holds a reference until it's fully cleaned up, so that we
> > > can do nice stuff like use dev_ versions of printk functions, and you
> > > always know that there's not going to be a use-after free.
> > >
> > > - now the other dependency is that as long as the device exists (not
> > > just in memory, but in the device model, i.e. between device_add() and
> > > device_del()) the drm_device should exist. So what we do in the
> > > bus-specific remove/disconnect callback is that we call
> > > drm_dev_unregister(). This drops the drm_device refcount that the drm
> > > chardev was holding, to make sure that an open() on the chardev can
> > > actually get at the memory without going boom. Then after the
> > > drm_dev_unregister, again in the remove/disconnect callback of th
> > > driver, there's a drm_dev_put(). Which might or might not be the final
> > > drm_dev_put(), since if there's currently some open fd we keep the
> > > refcount elevated, to avoid oopses and fun stuff like that. And
> > > drm_device pointers get shared very widely, thanks to fun stuff like
> > > dma_buf buffer sharing and dma_fence hw syncpt sharing across
> > > processes and drivers.
> > >
> > > Once the final drm_dev_put() is called we also end up calling
> > > put_device() and everything is happy.
> > >
> > > So far so good.
> > >
> > > Now the problem is that refcount is hard, and most drm drivers get it
> > > wrong in some fashion or another, so I'm trying to solve all this with
> > > more magic.
> >
> > Wait, no. Fix the drivers. Seriously, don't try to "bust" the
> > reference count logic here.
>
> I guess still not clear. What I'm doing is fixing the drivers. But
> because they all get it wrong, I'm trying to hide as much of the
> refcounting as possible behind functions which do the right thing.
>
> Which works great for the epic pile of real hw drivers that we have.
>
> The problem I have is is _only_ with those drm drivers which run on
> fake hw. For those forcing them to use the exact same functions as the
> real hw drivers has some challenges, because they're not really real
> drivers. Now the original patch had 3 ideas for how to make things
> work for those fake drivers too, with one of them implemented in this
> patch (the one that required the least amount of typing on my part).
>
> You harping that I'm getting the refcounting wrong is kinda totally
> missing the point, because that's what I'm doing.
>
> > > Since all drivers need to have a drm_dev_put() at the end of their
> > > driver's remove/disconnect callback we've added a devm_drm_dev_init
> > > function which registers a devres action to do that drm_dev_put() at
> > > device_del time (which might or might not be the final drm_dev_put()).
> > > Nothing has changed thus far.
> > >
> > > Now this works really well because when you have a real driver model
> > > driver attached, then device_del ends up calling devres_release_all(),
> > > which ends up triggering the multi-stage cleanup of drm_devices. But
> > > if you do _not_ have a real driver attached, then device_del does
> > > nothing wrt devres cleanup. Instead this is delayed until the final
> > > put_device().
> > >
> > > Unfortunately that final put_device() will never happen, because
> > > drm_device is still holding a reference to the struct device. And the
> > > final drm_dev_put of that drm_device will never happen, because that
> > > drm_dev_put call is in a devres actions, which wont ever get called.
> >
> > True, so fix the logic to do the final put_device() :)
> >
> > > This is the only case where this reference loop happens and doesn't
> > > get broken. By calling devres_release_all at device_del time,
> > > irrespective of whether a driver is bound or not, we make both cases
> > > work the same. And at both cases the devres cleanup happens device_del
> > > time, and not when the final put_device is called.
> >
> > So what is so odd about these random drivers that the normal process
> > does not work for them?
>
> They're not drivers in the driver model sense.
>
> > Along these lines, you might look into how the v4l developers finally
> > fixed this as they had much the same type of issues that you do with
> > regards to reference counting and resources and userspace file handles.
>
> We have a pile of v4l developers on dri-devel, they've been reviewing
> the stuff we've been doing in drm over the past 2-3 years already ...
>
> > > Aside: The final put_device has another devres_release_all() call,
> > > which given your explanation sounds very wrong - at that point the
> > > physical device is long gone, and cleaning up devres actions at that
> > > point is way too late. I think a good cleanup patch on top of this
> > > would be to remove that call, and replace it with an assert that no
> > > one managed to sneak in a devres_add_action between device_del and the
> > > final put_device().
> >
> > The physical device might be gone, but an open handle to the device
> > might still be around, keeping the structure in place and the driver
> > thinking it still has access to it's memory structures.
>
> I understand that. This is not the problem I'm having here, we've
> fixed that problem a while ago (at least in drm core, but the drivers
> have a bit a harder time picking up the correct coding patterns,
> mostly because there's overwhelming code in existing drivers that's
> just plain broken).
>
> > > > And then all should be fine, right? But, by putting the freeing here,
> > > > you can still have a "live" device that thinks it has resources availble
> > > > that it can access, but yet they are now gone. Yeah, it's probably not
> > > > ever going to really happen, but the lifecycles of dynamic devices are
> > > > tough to "prove" at times, and I worry that freeing things this early is
> > > > going to cause odd disconnect issues.
> > >
> > > Not exactly sure what you mean here, but trying to fix all the driver
> > > bugs we have in drm is why I'm doing this. We have a massive amount of
> > > gaps still, but we're slowly closing them all off with stuff like
> > > drm_dev_enter/exit, to make sure there's no races possible between
> > > driver hotunplug and concurrent access by userspace.
> >
> > Again, look at what v4l did, I think it might work out for you all as
> > well.
>
> I think we're talking past each another quite badly here ...
So I've read through the v4l register/unregister code for the cdev,
and in spirit it matches what we're doing with drm_device. In practice
the drm version is a lot more complicated, mostly because our uapi is
kinda hilarious and our single userspace-facing object is exposed
through an entire set of of different cdev (the one I have here has
like at 5 different cdev registered ...).
The other big difference that I'm seeing is that our equivalent of
video_unregister_device is split up, i.e. we're not using the
equivalent of device_unregister, but the device_del and put_device
that one boils down is split up, with some things happening in
between. Mostly because developers insist that when they remove/unbind
a driver, we're supposed to shut down the display hardware, instead of
just continuing to scan out garbage. Otherwise we could just use the
merged device_unregister().
tldr; I'm not seeing what we're doing totally wrong compared to v4l ...
-Daniel
--
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch
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^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 17/44] drm/st7735r: Use devm_drm_dev_alloc
2020-04-03 13:58 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-03 17:00 ` David Lechner
-1 siblings, 0 replies; 262+ messages in thread
From: David Lechner @ 2020-04-03 17:00 UTC (permalink / raw)
To: Daniel Vetter, DRI Development; +Cc: Daniel Vetter, Intel Graphics Development
On 4/3/20 8:58 AM, Daniel Vetter wrote:
> Already using devm_drm_dev_init, so very simple replacment.
>
> Aside: There was an oddity in the old code, we allocated priv but in
> the error path we've freed priv->dbidev ...
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: David Lechner <david@lechnology.com>
> ---
Acked-by: David Lechner <david@lechnology.com>
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^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [Intel-gfx] [PATCH 17/44] drm/st7735r: Use devm_drm_dev_alloc
@ 2020-04-03 17:00 ` David Lechner
0 siblings, 0 replies; 262+ messages in thread
From: David Lechner @ 2020-04-03 17:00 UTC (permalink / raw)
To: Daniel Vetter, DRI Development; +Cc: Daniel Vetter, Intel Graphics Development
On 4/3/20 8:58 AM, Daniel Vetter wrote:
> Already using devm_drm_dev_init, so very simple replacment.
>
> Aside: There was an oddity in the old code, we allocated priv but in
> the error path we've freed priv->dbidev ...
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: David Lechner <david@lechnology.com>
> ---
Acked-by: David Lechner <david@lechnology.com>
_______________________________________________
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^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 18/44] drm/st7586: Use devm_drm_dev_alloc
2020-04-03 13:58 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-03 17:01 ` David Lechner
-1 siblings, 0 replies; 262+ messages in thread
From: David Lechner @ 2020-04-03 17:01 UTC (permalink / raw)
To: Daniel Vetter, DRI Development; +Cc: Daniel Vetter, Intel Graphics Development
On 4/3/20 8:58 AM, Daniel Vetter wrote:
> Already using devm_drm_dev_init, so very simple replacment.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: David Lechner <david@lechnology.com>
> ---
Acked-by: David Lechner <david@lechnology.com>
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^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [Intel-gfx] [PATCH 18/44] drm/st7586: Use devm_drm_dev_alloc
@ 2020-04-03 17:01 ` David Lechner
0 siblings, 0 replies; 262+ messages in thread
From: David Lechner @ 2020-04-03 17:01 UTC (permalink / raw)
To: Daniel Vetter, DRI Development; +Cc: Daniel Vetter, Intel Graphics Development
On 4/3/20 8:58 AM, Daniel Vetter wrote:
> Already using devm_drm_dev_init, so very simple replacment.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: David Lechner <david@lechnology.com>
> ---
Acked-by: David Lechner <david@lechnology.com>
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^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 22/44] drm/ili9341: Use devm_drm_dev_alloc
2020-04-03 13:58 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-03 17:02 ` David Lechner
-1 siblings, 0 replies; 262+ messages in thread
From: David Lechner @ 2020-04-03 17:02 UTC (permalink / raw)
To: Daniel Vetter, DRI Development
Cc: Daniel Vetter, Intel Graphics Development, Sam Ravnborg
On 4/3/20 8:58 AM, Daniel Vetter wrote:
> Already using devm_drm_dev_init, so very simple replacment.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: "Noralf Trønnes" <noralf@tronnes.org>
> Cc: Sam Ravnborg <sam@ravnborg.org>
> Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
> Cc: Eric Anholt <eric@anholt.net>
> Cc: David Lechner <david@lechnology.com>
> ---
Acked-by: David Lechner <david@lechnology.com>
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^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [Intel-gfx] [PATCH 22/44] drm/ili9341: Use devm_drm_dev_alloc
@ 2020-04-03 17:02 ` David Lechner
0 siblings, 0 replies; 262+ messages in thread
From: David Lechner @ 2020-04-03 17:02 UTC (permalink / raw)
To: Daniel Vetter, DRI Development
Cc: Daniel Vetter, Intel Graphics Development, Noralf Trønnes,
Sam Ravnborg, Eric Anholt
On 4/3/20 8:58 AM, Daniel Vetter wrote:
> Already using devm_drm_dev_init, so very simple replacment.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: "Noralf Trønnes" <noralf@tronnes.org>
> Cc: Sam Ravnborg <sam@ravnborg.org>
> Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
> Cc: Eric Anholt <eric@anholt.net>
> Cc: David Lechner <david@lechnology.com>
> ---
Acked-by: David Lechner <david@lechnology.com>
_______________________________________________
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^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 23/44] drm/ili9225: Use devm_drm_dev_alloc
2020-04-03 13:58 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-03 17:02 ` David Lechner
-1 siblings, 0 replies; 262+ messages in thread
From: David Lechner @ 2020-04-03 17:02 UTC (permalink / raw)
To: Daniel Vetter, DRI Development; +Cc: Daniel Vetter, Intel Graphics Development
On 4/3/20 8:58 AM, Daniel Vetter wrote:
> Already using devm_drm_dev_init, so very simple replacment.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: David Lechner <david@lechnology.com>
> ---
Acked-by: David Lechner <david@lechnology.com>
_______________________________________________
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^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [Intel-gfx] [PATCH 23/44] drm/ili9225: Use devm_drm_dev_alloc
@ 2020-04-03 17:02 ` David Lechner
0 siblings, 0 replies; 262+ messages in thread
From: David Lechner @ 2020-04-03 17:02 UTC (permalink / raw)
To: Daniel Vetter, DRI Development; +Cc: Daniel Vetter, Intel Graphics Development
On 4/3/20 8:58 AM, Daniel Vetter wrote:
> Already using devm_drm_dev_init, so very simple replacment.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: David Lechner <david@lechnology.com>
> ---
Acked-by: David Lechner <david@lechnology.com>
_______________________________________________
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^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 14/44] drm/v3d: Delete v3d_dev->pdev
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-03 17:35 ` Eric Anholt
-1 siblings, 0 replies; 262+ messages in thread
From: Eric Anholt @ 2020-04-03 17:35 UTC (permalink / raw)
To: Daniel Vetter; +Cc: Daniel Vetter, Intel Graphics Development, DRI Development
On Fri, Apr 3, 2020 at 6:58 AM Daniel Vetter <daniel.vetter@ffwll.ch> wrote:
>
> We already have it in v3d_dev->drm.dev with zero additional pointer
> chasing. Personally I don't like duplicated pointers like this
> because:
> - reviewers need to check whether the pointer is for the same or
> different objects if there's multiple
> - compilers have an easier time too
>
> To avoid having to pull in some big headers I implemented the casting
> function as a macro instead of a static inline. Typechecking thanks to
> container_of still assured.
>
> But also a bit a bikeshed, so feel free to ignore.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Eric Anholt <eric@anholt.net
Acked-by: Eric Anholt <eric@anholt.net>
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^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [Intel-gfx] [PATCH 14/44] drm/v3d: Delete v3d_dev->pdev
@ 2020-04-03 17:35 ` Eric Anholt
0 siblings, 0 replies; 262+ messages in thread
From: Eric Anholt @ 2020-04-03 17:35 UTC (permalink / raw)
To: Daniel Vetter; +Cc: Daniel Vetter, Intel Graphics Development, DRI Development
On Fri, Apr 3, 2020 at 6:58 AM Daniel Vetter <daniel.vetter@ffwll.ch> wrote:
>
> We already have it in v3d_dev->drm.dev with zero additional pointer
> chasing. Personally I don't like duplicated pointers like this
> because:
> - reviewers need to check whether the pointer is for the same or
> different objects if there's multiple
> - compilers have an easier time too
>
> To avoid having to pull in some big headers I implemented the casting
> function as a macro instead of a static inline. Typechecking thanks to
> container_of still assured.
>
> But also a bit a bikeshed, so feel free to ignore.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Eric Anholt <eric@anholt.net
Acked-by: Eric Anholt <eric@anholt.net>
_______________________________________________
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^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 13/44] drm/v3d: Delete v3d_dev->dev
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-03 17:35 ` Eric Anholt
-1 siblings, 0 replies; 262+ messages in thread
From: Eric Anholt @ 2020-04-03 17:35 UTC (permalink / raw)
To: Daniel Vetter; +Cc: Daniel Vetter, Intel Graphics Development, DRI Development
On Fri, Apr 3, 2020 at 6:58 AM Daniel Vetter <daniel.vetter@ffwll.ch> wrote:
>
> We already have it in v3d_dev->drm.dev with zero additional pointer
> chasing. Personally I don't like duplicated pointers like this
> because:
> - reviewers need to check whether the pointer is for the same or
> different objects if there's multiple
> - compilers have an easier time too
>
> But also a bit a bikeshed, so feel free to ignore.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Eric Anholt <eric@anholt.net>
a-b.
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^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [Intel-gfx] [PATCH 13/44] drm/v3d: Delete v3d_dev->dev
@ 2020-04-03 17:35 ` Eric Anholt
0 siblings, 0 replies; 262+ messages in thread
From: Eric Anholt @ 2020-04-03 17:35 UTC (permalink / raw)
To: Daniel Vetter; +Cc: Daniel Vetter, Intel Graphics Development, DRI Development
On Fri, Apr 3, 2020 at 6:58 AM Daniel Vetter <daniel.vetter@ffwll.ch> wrote:
>
> We already have it in v3d_dev->drm.dev with zero additional pointer
> chasing. Personally I don't like duplicated pointers like this
> because:
> - reviewers need to check whether the pointer is for the same or
> different objects if there's multiple
> - compilers have an easier time too
>
> But also a bit a bikeshed, so feel free to ignore.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Eric Anholt <eric@anholt.net>
a-b.
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^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 12/44] drm/v3d: Use devm_drm_dev_alloc
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-03 17:38 ` Eric Anholt
-1 siblings, 0 replies; 262+ messages in thread
From: Eric Anholt @ 2020-04-03 17:38 UTC (permalink / raw)
To: Daniel Vetter; +Cc: Daniel Vetter, Intel Graphics Development, DRI Development
On Fri, Apr 3, 2020 at 6:58 AM Daniel Vetter <daniel.vetter@ffwll.ch> wrote:
>
> Also allows us to simplify the unroll code since the drm_dev_put
> disappears.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Acked-by: Eric Anholt <eric@anholt.net>
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^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [Intel-gfx] [PATCH 12/44] drm/v3d: Use devm_drm_dev_alloc
@ 2020-04-03 17:38 ` Eric Anholt
0 siblings, 0 replies; 262+ messages in thread
From: Eric Anholt @ 2020-04-03 17:38 UTC (permalink / raw)
To: Daniel Vetter; +Cc: Daniel Vetter, Intel Graphics Development, DRI Development
On Fri, Apr 3, 2020 at 6:58 AM Daniel Vetter <daniel.vetter@ffwll.ch> wrote:
>
> Also allows us to simplify the unroll code since the drm_dev_put
> disappears.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Acked-by: Eric Anholt <eric@anholt.net>
_______________________________________________
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^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 24/44] drm/hx8357d: Use devm_drm_dev_alloc
2020-04-03 13:58 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-03 17:38 ` Eric Anholt
-1 siblings, 0 replies; 262+ messages in thread
From: Eric Anholt @ 2020-04-03 17:38 UTC (permalink / raw)
To: Daniel Vetter; +Cc: Daniel Vetter, Intel Graphics Development, DRI Development
On Fri, Apr 3, 2020 at 6:59 AM Daniel Vetter <daniel.vetter@ffwll.ch> wrote:
>
> Already using devm_drm_dev_init, so very simple replacment.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Acked-by: Eric Anholt <eric@anholt.net>
_______________________________________________
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^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [Intel-gfx] [PATCH 24/44] drm/hx8357d: Use devm_drm_dev_alloc
@ 2020-04-03 17:38 ` Eric Anholt
0 siblings, 0 replies; 262+ messages in thread
From: Eric Anholt @ 2020-04-03 17:38 UTC (permalink / raw)
To: Daniel Vetter; +Cc: Daniel Vetter, Intel Graphics Development, DRI Development
On Fri, Apr 3, 2020 at 6:59 AM Daniel Vetter <daniel.vetter@ffwll.ch> wrote:
>
> Already using devm_drm_dev_init, so very simple replacment.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Acked-by: Eric Anholt <eric@anholt.net>
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^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 11/44] drm/v3d: Don't set drm_device->dev_private
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-03 17:39 ` Eric Anholt
-1 siblings, 0 replies; 262+ messages in thread
From: Eric Anholt @ 2020-04-03 17:39 UTC (permalink / raw)
To: Daniel Vetter; +Cc: Daniel Vetter, Intel Graphics Development, DRI Development
On Fri, Apr 3, 2020 at 6:58 AM Daniel Vetter <daniel.vetter@ffwll.ch> wrote:
>
> And switch the helper over to container_of, which is a bunch faster
> than chasing a pointer. Plus allows gcc to see through this maze.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Acked-by: Eric Anholt <eric@anholt.net>
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^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [Intel-gfx] [PATCH 11/44] drm/v3d: Don't set drm_device->dev_private
@ 2020-04-03 17:39 ` Eric Anholt
0 siblings, 0 replies; 262+ messages in thread
From: Eric Anholt @ 2020-04-03 17:39 UTC (permalink / raw)
To: Daniel Vetter; +Cc: Daniel Vetter, Intel Graphics Development, DRI Development
On Fri, Apr 3, 2020 at 6:58 AM Daniel Vetter <daniel.vetter@ffwll.ch> wrote:
>
> And switch the helper over to container_of, which is a bunch faster
> than chasing a pointer. Plus allows gcc to see through this maze.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Acked-by: Eric Anholt <eric@anholt.net>
_______________________________________________
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^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 40/44] drm/cirrus: Don't use drm_device->dev_private
2020-04-03 13:58 ` Daniel Vetter
(?)
@ 2020-04-03 17:40 ` Eric Anholt
-1 siblings, 0 replies; 262+ messages in thread
From: Eric Anholt @ 2020-04-03 17:40 UTC (permalink / raw)
To: Daniel Vetter
Cc: Intel Graphics Development, DRI Development, virtualization,
Noralf Trønnes, Thomas Zimmermann, Dave Airlie,
Daniel Vetter, Sam Ravnborg
On Fri, Apr 3, 2020 at 6:59 AM Daniel Vetter <daniel.vetter@ffwll.ch> wrote:
>
> Upcasting using a container_of macro is more typesafe, faster and
> easier for the compiler to optimize.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Dave Airlie <airlied@redhat.com>
> Cc: Gerd Hoffmann <kraxel@redhat.com>
> Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
> Cc: "Noralf Trønnes" <noralf@tronnes.org>
> Cc: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Eric Anholt <eric@anholt.net>
_______________________________________________
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^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 40/44] drm/cirrus: Don't use drm_device->dev_private
@ 2020-04-03 17:40 ` Eric Anholt
0 siblings, 0 replies; 262+ messages in thread
From: Eric Anholt @ 2020-04-03 17:40 UTC (permalink / raw)
To: Daniel Vetter
Cc: Intel Graphics Development, DRI Development, virtualization,
Gerd Hoffmann, Thomas Zimmermann, Dave Airlie, Daniel Vetter,
Sam Ravnborg
On Fri, Apr 3, 2020 at 6:59 AM Daniel Vetter <daniel.vetter@ffwll.ch> wrote:
>
> Upcasting using a container_of macro is more typesafe, faster and
> easier for the compiler to optimize.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Dave Airlie <airlied@redhat.com>
> Cc: Gerd Hoffmann <kraxel@redhat.com>
> Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
> Cc: "Noralf Trønnes" <noralf@tronnes.org>
> Cc: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Eric Anholt <eric@anholt.net>
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^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [Intel-gfx] [PATCH 40/44] drm/cirrus: Don't use drm_device->dev_private
@ 2020-04-03 17:40 ` Eric Anholt
0 siblings, 0 replies; 262+ messages in thread
From: Eric Anholt @ 2020-04-03 17:40 UTC (permalink / raw)
To: Daniel Vetter
Cc: Intel Graphics Development, DRI Development, virtualization,
Noralf Trønnes, Gerd Hoffmann, Thomas Zimmermann,
Dave Airlie, Daniel Vetter, Sam Ravnborg
On Fri, Apr 3, 2020 at 6:59 AM Daniel Vetter <daniel.vetter@ffwll.ch> wrote:
>
> Upcasting using a container_of macro is more typesafe, faster and
> easier for the compiler to optimize.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Dave Airlie <airlied@redhat.com>
> Cc: Gerd Hoffmann <kraxel@redhat.com>
> Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
> Cc: "Noralf Trønnes" <noralf@tronnes.org>
> Cc: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Eric Anholt <eric@anholt.net>
_______________________________________________
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^ permalink raw reply [flat|nested] 262+ messages in thread
* [PATCH] drm/i915/selftest: Create mock_destroy_device
2020-04-03 13:58 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-03 22:31 ` Daniel Vetter
-1 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 22:31 UTC (permalink / raw)
To: DRI Development; +Cc: Daniel Vetter, Intel Graphics Development, Daniel Vetter
Just some prep work before we rework the lifetime handling, which
requires replacing all the drm_dev_put in selftests by something else.
v2: Don't go with a static inline, upsets the header tests and
separation.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
---
drivers/gpu/drm/i915/gem/selftests/huge_pages.c | 2 +-
drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c | 2 +-
drivers/gpu/drm/i915/gem/selftests/i915_gem_dmabuf.c | 2 +-
drivers/gpu/drm/i915/gem/selftests/i915_gem_object.c | 2 +-
drivers/gpu/drm/i915/gem/selftests/i915_gem_phys.c | 2 +-
drivers/gpu/drm/i915/gt/selftest_timeline.c | 2 +-
drivers/gpu/drm/i915/selftests/i915_gem_evict.c | 2 +-
drivers/gpu/drm/i915/selftests/i915_gem_gtt.c | 2 +-
drivers/gpu/drm/i915/selftests/i915_request.c | 2 +-
drivers/gpu/drm/i915/selftests/i915_vma.c | 2 +-
drivers/gpu/drm/i915/selftests/intel_memory_region.c | 2 +-
drivers/gpu/drm/i915/selftests/mock_gem_device.c | 7 ++++++-
drivers/gpu/drm/i915/selftests/mock_gem_device.h | 2 ++
13 files changed, 19 insertions(+), 12 deletions(-)
diff --git a/drivers/gpu/drm/i915/gem/selftests/huge_pages.c b/drivers/gpu/drm/i915/gem/selftests/huge_pages.c
index 2d0fd50c5312..d19bb011fc6b 100644
--- a/drivers/gpu/drm/i915/gem/selftests/huge_pages.c
+++ b/drivers/gpu/drm/i915/gem/selftests/huge_pages.c
@@ -1789,7 +1789,7 @@ int i915_gem_huge_page_mock_selftests(void)
i915_vm_put(&ppgtt->vm);
out_unlock:
- drm_dev_put(&dev_priv->drm);
+ mock_destroy_device(dev_priv);
return err;
}
diff --git a/drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c b/drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c
index f4f933240b39..d9d96d23e37e 100644
--- a/drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c
+++ b/drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c
@@ -1986,7 +1986,7 @@ int i915_gem_context_mock_selftests(void)
err = i915_subtests(tests, i915);
- drm_dev_put(&i915->drm);
+ mock_destroy_device(i915);
return err;
}
diff --git a/drivers/gpu/drm/i915/gem/selftests/i915_gem_dmabuf.c b/drivers/gpu/drm/i915/gem/selftests/i915_gem_dmabuf.c
index 2a52b92586b9..0845ce1ae37c 100644
--- a/drivers/gpu/drm/i915/gem/selftests/i915_gem_dmabuf.c
+++ b/drivers/gpu/drm/i915/gem/selftests/i915_gem_dmabuf.c
@@ -272,7 +272,7 @@ int i915_gem_dmabuf_mock_selftests(void)
err = i915_subtests(tests, i915);
- drm_dev_put(&i915->drm);
+ mock_destroy_device(i915);
return err;
}
diff --git a/drivers/gpu/drm/i915/gem/selftests/i915_gem_object.c b/drivers/gpu/drm/i915/gem/selftests/i915_gem_object.c
index 2b6db6f799de..085644edebfc 100644
--- a/drivers/gpu/drm/i915/gem/selftests/i915_gem_object.c
+++ b/drivers/gpu/drm/i915/gem/selftests/i915_gem_object.c
@@ -85,7 +85,7 @@ int i915_gem_object_mock_selftests(void)
err = i915_subtests(tests, i915);
- drm_dev_put(&i915->drm);
+ mock_destroy_device(i915);
return err;
}
diff --git a/drivers/gpu/drm/i915/gem/selftests/i915_gem_phys.c b/drivers/gpu/drm/i915/gem/selftests/i915_gem_phys.c
index 34932871b3a5..2a9709eb5a42 100644
--- a/drivers/gpu/drm/i915/gem/selftests/i915_gem_phys.c
+++ b/drivers/gpu/drm/i915/gem/selftests/i915_gem_phys.c
@@ -73,6 +73,6 @@ int i915_gem_phys_mock_selftests(void)
err = i915_subtests(tests, i915);
- drm_dev_put(&i915->drm);
+ mock_destroy_device(i915);
return err;
}
diff --git a/drivers/gpu/drm/i915/gt/selftest_timeline.c b/drivers/gpu/drm/i915/gt/selftest_timeline.c
index c2578a0f2f14..1c0865227714 100644
--- a/drivers/gpu/drm/i915/gt/selftest_timeline.c
+++ b/drivers/gpu/drm/i915/gt/selftest_timeline.c
@@ -157,7 +157,7 @@ static int mock_hwsp_freelist(void *arg)
__mock_hwsp_record(&state, na, NULL);
kfree(state.history);
err_put:
- drm_dev_put(&i915->drm);
+ mock_destroy_device(i915);
return err;
}
diff --git a/drivers/gpu/drm/i915/selftests/i915_gem_evict.c b/drivers/gpu/drm/i915/selftests/i915_gem_evict.c
index 028baae9631f..f88473d396f4 100644
--- a/drivers/gpu/drm/i915/selftests/i915_gem_evict.c
+++ b/drivers/gpu/drm/i915/selftests/i915_gem_evict.c
@@ -536,7 +536,7 @@ int i915_gem_evict_mock_selftests(void)
with_intel_runtime_pm(&i915->runtime_pm, wakeref)
err = i915_subtests(tests, &i915->gt);
- drm_dev_put(&i915->drm);
+ mock_destroy_device(i915);
return err;
}
diff --git a/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c b/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c
index 5d2a02fcf595..035e4f77f06f 100644
--- a/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c
@@ -1714,7 +1714,7 @@ int i915_gem_gtt_mock_selftests(void)
mock_fini_ggtt(ggtt);
kfree(ggtt);
out_put:
- drm_dev_put(&i915->drm);
+ mock_destroy_device(i915);
return err;
}
diff --git a/drivers/gpu/drm/i915/selftests/i915_request.c b/drivers/gpu/drm/i915/selftests/i915_request.c
index 1dab0360f76a..6bc6a2fc83ab 100644
--- a/drivers/gpu/drm/i915/selftests/i915_request.c
+++ b/drivers/gpu/drm/i915/selftests/i915_request.c
@@ -521,7 +521,7 @@ int i915_request_mock_selftests(void)
with_intel_runtime_pm(&i915->runtime_pm, wakeref)
err = i915_subtests(tests, i915);
- drm_dev_put(&i915->drm);
+ mock_destroy_device(i915);
return err;
}
diff --git a/drivers/gpu/drm/i915/selftests/i915_vma.c b/drivers/gpu/drm/i915/selftests/i915_vma.c
index 58b5f40a07dd..7d51cc2da36f 100644
--- a/drivers/gpu/drm/i915/selftests/i915_vma.c
+++ b/drivers/gpu/drm/i915/selftests/i915_vma.c
@@ -841,7 +841,7 @@ int i915_vma_mock_selftests(void)
mock_fini_ggtt(ggtt);
kfree(ggtt);
out_put:
- drm_dev_put(&i915->drm);
+ mock_destroy_device(i915);
return err;
}
diff --git a/drivers/gpu/drm/i915/selftests/intel_memory_region.c b/drivers/gpu/drm/i915/selftests/intel_memory_region.c
index 6e80d99048e4..5226767d5384 100644
--- a/drivers/gpu/drm/i915/selftests/intel_memory_region.c
+++ b/drivers/gpu/drm/i915/selftests/intel_memory_region.c
@@ -791,7 +791,7 @@ int intel_memory_region_mock_selftests(void)
intel_memory_region_put(mem);
out_unref:
- drm_dev_put(&i915->drm);
+ mock_destroy_device(i915);
return err;
}
diff --git a/drivers/gpu/drm/i915/selftests/mock_gem_device.c b/drivers/gpu/drm/i915/selftests/mock_gem_device.c
index 9b105b811f1f..41afc357f4d0 100644
--- a/drivers/gpu/drm/i915/selftests/mock_gem_device.c
+++ b/drivers/gpu/drm/i915/selftests/mock_gem_device.c
@@ -214,7 +214,12 @@ struct drm_i915_private *mock_gem_device(void)
intel_gt_driver_late_release(&i915->gt);
intel_memory_regions_driver_release(i915);
drm_mode_config_cleanup(&i915->drm);
- drm_dev_put(&i915->drm);
+ mock_destroy_device(i915);
return NULL;
}
+
+void mock_destroy_device(struct drm_i915_private *i915)
+{
+ drm_dev_put(&i915->drm);
+}
diff --git a/drivers/gpu/drm/i915/selftests/mock_gem_device.h b/drivers/gpu/drm/i915/selftests/mock_gem_device.h
index b5dc4e394555..953cfe4fab34 100644
--- a/drivers/gpu/drm/i915/selftests/mock_gem_device.h
+++ b/drivers/gpu/drm/i915/selftests/mock_gem_device.h
@@ -7,4 +7,6 @@ struct drm_i915_private;
struct drm_i915_private *mock_gem_device(void);
void mock_device_flush(struct drm_i915_private *i915);
+void mock_destroy_device(struct drm_i915_private *i915);
+
#endif /* !__MOCK_GEM_DEVICE_H__ */
--
2.25.1
_______________________________________________
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dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [Intel-gfx] [PATCH] drm/i915/selftest: Create mock_destroy_device
@ 2020-04-03 22:31 ` Daniel Vetter
0 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 22:31 UTC (permalink / raw)
To: DRI Development; +Cc: Daniel Vetter, Intel Graphics Development, Daniel Vetter
Just some prep work before we rework the lifetime handling, which
requires replacing all the drm_dev_put in selftests by something else.
v2: Don't go with a static inline, upsets the header tests and
separation.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
---
drivers/gpu/drm/i915/gem/selftests/huge_pages.c | 2 +-
drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c | 2 +-
drivers/gpu/drm/i915/gem/selftests/i915_gem_dmabuf.c | 2 +-
drivers/gpu/drm/i915/gem/selftests/i915_gem_object.c | 2 +-
drivers/gpu/drm/i915/gem/selftests/i915_gem_phys.c | 2 +-
drivers/gpu/drm/i915/gt/selftest_timeline.c | 2 +-
drivers/gpu/drm/i915/selftests/i915_gem_evict.c | 2 +-
drivers/gpu/drm/i915/selftests/i915_gem_gtt.c | 2 +-
drivers/gpu/drm/i915/selftests/i915_request.c | 2 +-
drivers/gpu/drm/i915/selftests/i915_vma.c | 2 +-
drivers/gpu/drm/i915/selftests/intel_memory_region.c | 2 +-
drivers/gpu/drm/i915/selftests/mock_gem_device.c | 7 ++++++-
drivers/gpu/drm/i915/selftests/mock_gem_device.h | 2 ++
13 files changed, 19 insertions(+), 12 deletions(-)
diff --git a/drivers/gpu/drm/i915/gem/selftests/huge_pages.c b/drivers/gpu/drm/i915/gem/selftests/huge_pages.c
index 2d0fd50c5312..d19bb011fc6b 100644
--- a/drivers/gpu/drm/i915/gem/selftests/huge_pages.c
+++ b/drivers/gpu/drm/i915/gem/selftests/huge_pages.c
@@ -1789,7 +1789,7 @@ int i915_gem_huge_page_mock_selftests(void)
i915_vm_put(&ppgtt->vm);
out_unlock:
- drm_dev_put(&dev_priv->drm);
+ mock_destroy_device(dev_priv);
return err;
}
diff --git a/drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c b/drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c
index f4f933240b39..d9d96d23e37e 100644
--- a/drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c
+++ b/drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c
@@ -1986,7 +1986,7 @@ int i915_gem_context_mock_selftests(void)
err = i915_subtests(tests, i915);
- drm_dev_put(&i915->drm);
+ mock_destroy_device(i915);
return err;
}
diff --git a/drivers/gpu/drm/i915/gem/selftests/i915_gem_dmabuf.c b/drivers/gpu/drm/i915/gem/selftests/i915_gem_dmabuf.c
index 2a52b92586b9..0845ce1ae37c 100644
--- a/drivers/gpu/drm/i915/gem/selftests/i915_gem_dmabuf.c
+++ b/drivers/gpu/drm/i915/gem/selftests/i915_gem_dmabuf.c
@@ -272,7 +272,7 @@ int i915_gem_dmabuf_mock_selftests(void)
err = i915_subtests(tests, i915);
- drm_dev_put(&i915->drm);
+ mock_destroy_device(i915);
return err;
}
diff --git a/drivers/gpu/drm/i915/gem/selftests/i915_gem_object.c b/drivers/gpu/drm/i915/gem/selftests/i915_gem_object.c
index 2b6db6f799de..085644edebfc 100644
--- a/drivers/gpu/drm/i915/gem/selftests/i915_gem_object.c
+++ b/drivers/gpu/drm/i915/gem/selftests/i915_gem_object.c
@@ -85,7 +85,7 @@ int i915_gem_object_mock_selftests(void)
err = i915_subtests(tests, i915);
- drm_dev_put(&i915->drm);
+ mock_destroy_device(i915);
return err;
}
diff --git a/drivers/gpu/drm/i915/gem/selftests/i915_gem_phys.c b/drivers/gpu/drm/i915/gem/selftests/i915_gem_phys.c
index 34932871b3a5..2a9709eb5a42 100644
--- a/drivers/gpu/drm/i915/gem/selftests/i915_gem_phys.c
+++ b/drivers/gpu/drm/i915/gem/selftests/i915_gem_phys.c
@@ -73,6 +73,6 @@ int i915_gem_phys_mock_selftests(void)
err = i915_subtests(tests, i915);
- drm_dev_put(&i915->drm);
+ mock_destroy_device(i915);
return err;
}
diff --git a/drivers/gpu/drm/i915/gt/selftest_timeline.c b/drivers/gpu/drm/i915/gt/selftest_timeline.c
index c2578a0f2f14..1c0865227714 100644
--- a/drivers/gpu/drm/i915/gt/selftest_timeline.c
+++ b/drivers/gpu/drm/i915/gt/selftest_timeline.c
@@ -157,7 +157,7 @@ static int mock_hwsp_freelist(void *arg)
__mock_hwsp_record(&state, na, NULL);
kfree(state.history);
err_put:
- drm_dev_put(&i915->drm);
+ mock_destroy_device(i915);
return err;
}
diff --git a/drivers/gpu/drm/i915/selftests/i915_gem_evict.c b/drivers/gpu/drm/i915/selftests/i915_gem_evict.c
index 028baae9631f..f88473d396f4 100644
--- a/drivers/gpu/drm/i915/selftests/i915_gem_evict.c
+++ b/drivers/gpu/drm/i915/selftests/i915_gem_evict.c
@@ -536,7 +536,7 @@ int i915_gem_evict_mock_selftests(void)
with_intel_runtime_pm(&i915->runtime_pm, wakeref)
err = i915_subtests(tests, &i915->gt);
- drm_dev_put(&i915->drm);
+ mock_destroy_device(i915);
return err;
}
diff --git a/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c b/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c
index 5d2a02fcf595..035e4f77f06f 100644
--- a/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c
@@ -1714,7 +1714,7 @@ int i915_gem_gtt_mock_selftests(void)
mock_fini_ggtt(ggtt);
kfree(ggtt);
out_put:
- drm_dev_put(&i915->drm);
+ mock_destroy_device(i915);
return err;
}
diff --git a/drivers/gpu/drm/i915/selftests/i915_request.c b/drivers/gpu/drm/i915/selftests/i915_request.c
index 1dab0360f76a..6bc6a2fc83ab 100644
--- a/drivers/gpu/drm/i915/selftests/i915_request.c
+++ b/drivers/gpu/drm/i915/selftests/i915_request.c
@@ -521,7 +521,7 @@ int i915_request_mock_selftests(void)
with_intel_runtime_pm(&i915->runtime_pm, wakeref)
err = i915_subtests(tests, i915);
- drm_dev_put(&i915->drm);
+ mock_destroy_device(i915);
return err;
}
diff --git a/drivers/gpu/drm/i915/selftests/i915_vma.c b/drivers/gpu/drm/i915/selftests/i915_vma.c
index 58b5f40a07dd..7d51cc2da36f 100644
--- a/drivers/gpu/drm/i915/selftests/i915_vma.c
+++ b/drivers/gpu/drm/i915/selftests/i915_vma.c
@@ -841,7 +841,7 @@ int i915_vma_mock_selftests(void)
mock_fini_ggtt(ggtt);
kfree(ggtt);
out_put:
- drm_dev_put(&i915->drm);
+ mock_destroy_device(i915);
return err;
}
diff --git a/drivers/gpu/drm/i915/selftests/intel_memory_region.c b/drivers/gpu/drm/i915/selftests/intel_memory_region.c
index 6e80d99048e4..5226767d5384 100644
--- a/drivers/gpu/drm/i915/selftests/intel_memory_region.c
+++ b/drivers/gpu/drm/i915/selftests/intel_memory_region.c
@@ -791,7 +791,7 @@ int intel_memory_region_mock_selftests(void)
intel_memory_region_put(mem);
out_unref:
- drm_dev_put(&i915->drm);
+ mock_destroy_device(i915);
return err;
}
diff --git a/drivers/gpu/drm/i915/selftests/mock_gem_device.c b/drivers/gpu/drm/i915/selftests/mock_gem_device.c
index 9b105b811f1f..41afc357f4d0 100644
--- a/drivers/gpu/drm/i915/selftests/mock_gem_device.c
+++ b/drivers/gpu/drm/i915/selftests/mock_gem_device.c
@@ -214,7 +214,12 @@ struct drm_i915_private *mock_gem_device(void)
intel_gt_driver_late_release(&i915->gt);
intel_memory_regions_driver_release(i915);
drm_mode_config_cleanup(&i915->drm);
- drm_dev_put(&i915->drm);
+ mock_destroy_device(i915);
return NULL;
}
+
+void mock_destroy_device(struct drm_i915_private *i915)
+{
+ drm_dev_put(&i915->drm);
+}
diff --git a/drivers/gpu/drm/i915/selftests/mock_gem_device.h b/drivers/gpu/drm/i915/selftests/mock_gem_device.h
index b5dc4e394555..953cfe4fab34 100644
--- a/drivers/gpu/drm/i915/selftests/mock_gem_device.h
+++ b/drivers/gpu/drm/i915/selftests/mock_gem_device.h
@@ -7,4 +7,6 @@ struct drm_i915_private;
struct drm_i915_private *mock_gem_device(void);
void mock_device_flush(struct drm_i915_private *i915);
+void mock_destroy_device(struct drm_i915_private *i915);
+
#endif /* !__MOCK_GEM_DEVICE_H__ */
--
2.25.1
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [PATCH] drm/i915/selftests: align more to real device lifetimes
2020-04-03 13:58 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-03 22:31 ` Daniel Vetter
-1 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 22:31 UTC (permalink / raw)
To: DRI Development; +Cc: Daniel Vetter, Intel Graphics Development, Daniel Vetter
The big change is device_add so that device_del can auto-cleanup
devres resources. This allows us to use devm_drm_dev_alloc, which
removes the last user of drm_dev_init.
v2: Rebased
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
---
.../gpu/drm/i915/selftests/mock_gem_device.c | 33 +++++++++----------
1 file changed, 16 insertions(+), 17 deletions(-)
diff --git a/drivers/gpu/drm/i915/selftests/mock_gem_device.c b/drivers/gpu/drm/i915/selftests/mock_gem_device.c
index 41afc357f4d0..1ab97fa55929 100644
--- a/drivers/gpu/drm/i915/selftests/mock_gem_device.c
+++ b/drivers/gpu/drm/i915/selftests/mock_gem_device.c
@@ -123,12 +123,6 @@ struct drm_i915_private *mock_gem_device(void)
pdev = kzalloc(sizeof(*pdev), GFP_KERNEL);
if (!pdev)
return NULL;
- i915 = kzalloc(sizeof(*i915), GFP_KERNEL);
- if (!i915) {
- kfree(pdev);
- return NULL;
- }
-
device_initialize(&pdev->dev);
pdev->class = PCI_BASE_CLASS_DISPLAY << 16;
pdev->dev.release = release_dev;
@@ -139,8 +133,23 @@ struct drm_i915_private *mock_gem_device(void)
/* hack to disable iommu for the fake device; force identity mapping */
pdev->dev.archdata.iommu = (void *)-1;
#endif
+ err = device_add(&pdev->dev);
+ if (err) {
+ kfree(pdev);
+ return NULL;
+ }
+
+ i915 = devm_drm_dev_alloc(&pdev->dev, &mock_driver,
+ struct drm_i915_private, drm);
+ if (err) {
+ pr_err("Failed to allocate mock GEM device: err=%d\n", err);
+ put_device(&pdev->dev);
+
+ return NULL;
+ }
pci_set_drvdata(pdev, i915);
+ i915->drm.pdev = pdev;
dev_pm_domain_set(&pdev->dev, &pm_domain);
pm_runtime_enable(&pdev->dev);
@@ -148,16 +157,6 @@ struct drm_i915_private *mock_gem_device(void)
if (pm_runtime_enabled(&pdev->dev))
WARN_ON(pm_runtime_get_sync(&pdev->dev));
- err = drm_dev_init(&i915->drm, &mock_driver, &pdev->dev);
- if (err) {
- pr_err("Failed to initialise mock GEM device: err=%d\n", err);
- put_device(&pdev->dev);
- kfree(i915);
-
- return NULL;
- }
- i915->drm.pdev = pdev;
- drmm_add_final_kfree(&i915->drm, i915);
intel_runtime_pm_init_early(&i915->runtime_pm);
@@ -221,5 +220,5 @@ struct drm_i915_private *mock_gem_device(void)
void mock_destroy_device(struct drm_i915_private *i915)
{
- drm_dev_put(&i915->drm);
+ device_del(i915->drm.dev);
}
--
2.25.1
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [Intel-gfx] [PATCH] drm/i915/selftests: align more to real device lifetimes
@ 2020-04-03 22:31 ` Daniel Vetter
0 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-03 22:31 UTC (permalink / raw)
To: DRI Development; +Cc: Daniel Vetter, Intel Graphics Development, Daniel Vetter
The big change is device_add so that device_del can auto-cleanup
devres resources. This allows us to use devm_drm_dev_alloc, which
removes the last user of drm_dev_init.
v2: Rebased
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
---
.../gpu/drm/i915/selftests/mock_gem_device.c | 33 +++++++++----------
1 file changed, 16 insertions(+), 17 deletions(-)
diff --git a/drivers/gpu/drm/i915/selftests/mock_gem_device.c b/drivers/gpu/drm/i915/selftests/mock_gem_device.c
index 41afc357f4d0..1ab97fa55929 100644
--- a/drivers/gpu/drm/i915/selftests/mock_gem_device.c
+++ b/drivers/gpu/drm/i915/selftests/mock_gem_device.c
@@ -123,12 +123,6 @@ struct drm_i915_private *mock_gem_device(void)
pdev = kzalloc(sizeof(*pdev), GFP_KERNEL);
if (!pdev)
return NULL;
- i915 = kzalloc(sizeof(*i915), GFP_KERNEL);
- if (!i915) {
- kfree(pdev);
- return NULL;
- }
-
device_initialize(&pdev->dev);
pdev->class = PCI_BASE_CLASS_DISPLAY << 16;
pdev->dev.release = release_dev;
@@ -139,8 +133,23 @@ struct drm_i915_private *mock_gem_device(void)
/* hack to disable iommu for the fake device; force identity mapping */
pdev->dev.archdata.iommu = (void *)-1;
#endif
+ err = device_add(&pdev->dev);
+ if (err) {
+ kfree(pdev);
+ return NULL;
+ }
+
+ i915 = devm_drm_dev_alloc(&pdev->dev, &mock_driver,
+ struct drm_i915_private, drm);
+ if (err) {
+ pr_err("Failed to allocate mock GEM device: err=%d\n", err);
+ put_device(&pdev->dev);
+
+ return NULL;
+ }
pci_set_drvdata(pdev, i915);
+ i915->drm.pdev = pdev;
dev_pm_domain_set(&pdev->dev, &pm_domain);
pm_runtime_enable(&pdev->dev);
@@ -148,16 +157,6 @@ struct drm_i915_private *mock_gem_device(void)
if (pm_runtime_enabled(&pdev->dev))
WARN_ON(pm_runtime_get_sync(&pdev->dev));
- err = drm_dev_init(&i915->drm, &mock_driver, &pdev->dev);
- if (err) {
- pr_err("Failed to initialise mock GEM device: err=%d\n", err);
- put_device(&pdev->dev);
- kfree(i915);
-
- return NULL;
- }
- i915->drm.pdev = pdev;
- drmm_add_final_kfree(&i915->drm, i915);
intel_runtime_pm_init_early(&i915->runtime_pm);
@@ -221,5 +220,5 @@ struct drm_i915_private *mock_gem_device(void)
void mock_destroy_device(struct drm_i915_private *i915)
{
- drm_dev_put(&i915->drm);
+ device_del(i915->drm.dev);
}
--
2.25.1
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply related [flat|nested] 262+ messages in thread
* [Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for devm_drm_dev_alloc, no more drmm_add_final_kfree (rev3)
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
` (45 preceding siblings ...)
(?)
@ 2020-04-03 23:01 ` Patchwork
-1 siblings, 0 replies; 262+ messages in thread
From: Patchwork @ 2020-04-03 23:01 UTC (permalink / raw)
To: Daniel Vetter; +Cc: intel-gfx
== Series Details ==
Series: devm_drm_dev_alloc, no more drmm_add_final_kfree (rev3)
URL : https://patchwork.freedesktop.org/series/75463/
State : warning
== Summary ==
$ dim checkpatch origin/drm-tip
e72346e75771 drivers/base: Always release devres on device_del
-:78: WARNING:NO_AUTHOR_SIGN_OFF: Missing Signed-off-by: line by nominal patch author 'Daniel Vetter <daniel.vetter@ffwll.ch>'
total: 0 errors, 1 warnings, 0 checks, 8 lines checked
e239d39afecc drm: Add devm_drm_dev_alloc macro
-:26: ERROR:POINTER_LOCATION: "foo* bar" should be "foo *bar"
#26: FILE: drivers/gpu/drm/drm_drv.c:742:
+void* __devm_drm_dev_alloc(struct device *parent, struct drm_driver *driver,
-:60: ERROR:POINTER_LOCATION: "foo* bar" should be "foo *bar"
#60: FILE: include/drm/drm_drv.h:626:
+void* __devm_drm_dev_alloc(struct device *parent, struct drm_driver *driver,
-:90: CHECK:SPACING: No space is necessary after a cast
#90: FILE: include/drm/drm_drv.h:656:
+ ((type *) __devm_drm_dev_alloc(parent, driver, sizeof(type), \
-:95: WARNING:NO_AUTHOR_SIGN_OFF: Missing Signed-off-by: line by nominal patch author 'Daniel Vetter <daniel.vetter@ffwll.ch>'
total: 2 errors, 1 warnings, 1 checks, 68 lines checked
ed01ac38e04a drm/device: Deprecate dev_private harder
-:30: WARNING:NO_AUTHOR_SIGN_OFF: Missing Signed-off-by: line by nominal patch author 'Daniel Vetter <daniel.vetter@ffwll.ch>'
total: 0 errors, 1 warnings, 0 checks, 15 lines checked
a78829a54af6 drm/vgem: Use devm_drm_dev_alloc
-:13: WARNING:COMMIT_LOG_LONG_LINE: Possible unwrapped commit description (prefer a maximum 75 chars per line)
#13:
This also somewhat untangles the load code, since the drm and platform device
total: 0 errors, 1 warnings, 0 checks, 79 lines checked
5920030f62ea drm/vkms: Use devm_drm_dev_alloc
-:13: WARNING:COMMIT_LOG_LONG_LINE: Possible unwrapped commit description (prefer a maximum 75 chars per line)
#13:
This also somewhat untangles the load code, since the drm and platform device
-:118: WARNING:NO_AUTHOR_SIGN_OFF: Missing Signed-off-by: line by nominal patch author 'Daniel Vetter <daniel.vetter@ffwll.ch>'
total: 0 errors, 2 warnings, 0 checks, 90 lines checked
aae694a8a5d2 drm/vboxvideo: drop DRM_MTRR_WC #define
-:40: WARNING:NO_AUTHOR_SIGN_OFF: Missing Signed-off-by: line by nominal patch author 'Daniel Vetter <daniel.vetter@ffwll.ch>'
total: 0 errors, 1 warnings, 0 checks, 25 lines checked
098edba18627 drm/vboxvideo: Use devm_drm_dev_alloc
-:62: WARNING:NO_AUTHOR_SIGN_OFF: Missing Signed-off-by: line by nominal patch author 'Daniel Vetter <daniel.vetter@ffwll.ch>'
total: 0 errors, 1 warnings, 0 checks, 45 lines checked
76793ba02626 drm/vboxvideo: Stop using drm_device->dev_private
-:97: WARNING:NO_AUTHOR_SIGN_OFF: Missing Signed-off-by: line by nominal patch author 'Daniel Vetter <daniel.vetter@ffwll.ch>'
total: 0 errors, 1 warnings, 0 checks, 62 lines checked
9ba07a46cef1 drm/vboxvidoe: use managed pci functions
-:76: WARNING:NO_AUTHOR_SIGN_OFF: Missing Signed-off-by: line by nominal patch author 'Daniel Vetter <daniel.vetter@ffwll.ch>'
total: 0 errors, 1 warnings, 0 checks, 52 lines checked
6e4b89850b36 drm/vboxvideo: Use devm_gen_pool_create
-:75: WARNING:NO_AUTHOR_SIGN_OFF: Missing Signed-off-by: line by nominal patch author 'Daniel Vetter <daniel.vetter@ffwll.ch>'
total: 0 errors, 1 warnings, 0 checks, 57 lines checked
ec196f9e0be0 drm/v3d: Don't set drm_device->dev_private
-:37: WARNING:NO_AUTHOR_SIGN_OFF: Missing Signed-off-by: line by nominal patch author 'Daniel Vetter <daniel.vetter@ffwll.ch>'
total: 0 errors, 1 warnings, 0 checks, 15 lines checked
d25b70710de9 drm/v3d: Use devm_drm_dev_alloc
-:104: WARNING:NO_AUTHOR_SIGN_OFF: Missing Signed-off-by: line by nominal patch author 'Daniel Vetter <daniel.vetter@ffwll.ch>'
total: 0 errors, 1 warnings, 0 checks, 84 lines checked
f48e47f68a86 drm/v3d: Delete v3d_dev->dev
-:347: WARNING:NO_AUTHOR_SIGN_OFF: Missing Signed-off-by: line by nominal patch author 'Daniel Vetter <daniel.vetter@ffwll.ch>'
total: 0 errors, 1 warnings, 0 checks, 271 lines checked
66c944512b95 drm/v3d: Delete v3d_dev->pdev
-:60: CHECK:MACRO_ARG_PRECEDENCE: Macro argument 'v3d' may be better as '(v3d)' to avoid precedence issues
#60: FILE: drivers/gpu/drm/v3d/v3d_drv.h:130:
+#define v3d_to_pdev(v3d) to_platform_device(v3d->drm.dev)
-:97: WARNING:NO_AUTHOR_SIGN_OFF: Missing Signed-off-by: line by nominal patch author 'Daniel Vetter <daniel.vetter@ffwll.ch>'
total: 0 errors, 1 warnings, 1 checks, 56 lines checked
ec9cf4556e61 drm/udl: Use demv_drm_dev_alloc
-:93: WARNING:NO_AUTHOR_SIGN_OFF: Missing Signed-off-by: line by nominal patch author 'Daniel Vetter <daniel.vetter@ffwll.ch>'
total: 0 errors, 1 warnings, 0 checks, 68 lines checked
4cb201d3bd97 drm/udl: don't set drm_device->dev_private
-:91: WARNING:NO_AUTHOR_SIGN_OFF: Missing Signed-off-by: line by nominal patch author 'Daniel Vetter <daniel.vetter@ffwll.ch>'
total: 0 errors, 1 warnings, 0 checks, 47 lines checked
3dc0b3b337f2 drm/st7735r: Use devm_drm_dev_alloc
-:44: WARNING:NO_AUTHOR_SIGN_OFF: Missing Signed-off-by: line by nominal patch author 'Daniel Vetter <daniel.vetter@ffwll.ch>'
total: 0 errors, 1 warnings, 0 checks, 25 lines checked
09e5644e82b8 drm/st7586: Use devm_drm_dev_alloc
-:38: WARNING:NO_AUTHOR_SIGN_OFF: Missing Signed-off-by: line by nominal patch author 'Daniel Vetter <daniel.vetter@ffwll.ch>'
total: 0 errors, 1 warnings, 0 checks, 22 lines checked
d5de90a7063e drm/repaper: Use devm_drm_dev_alloc
-:41: WARNING:NO_AUTHOR_SIGN_OFF: Missing Signed-off-by: line by nominal patch author 'Daniel Vetter <daniel.vetter@ffwll.ch>'
total: 0 errors, 1 warnings, 0 checks, 23 lines checked
6d7d1f235e30 drm/mi0283qt: Use devm_drm_dev_alloc
-:40: WARNING:NO_AUTHOR_SIGN_OFF: Missing Signed-off-by: line by nominal patch author 'Daniel Vetter <daniel.vetter@ffwll.ch>'
total: 0 errors, 1 warnings, 0 checks, 22 lines checked
a8b3f3a2dfb2 drm/ili9486: Use devm_drm_dev_alloc
-:37: WARNING:NO_AUTHOR_SIGN_OFF: Missing Signed-off-by: line by nominal patch author 'Daniel Vetter <daniel.vetter@ffwll.ch>'
total: 0 errors, 1 warnings, 0 checks, 22 lines checked
25c9c3f9e447 drm/ili9341: Use devm_drm_dev_alloc
-:45: WARNING:NO_AUTHOR_SIGN_OFF: Missing Signed-off-by: line by nominal patch author 'Daniel Vetter <daniel.vetter@ffwll.ch>'
total: 0 errors, 1 warnings, 0 checks, 22 lines checked
4b8b9048fa61 drm/ili9225: Use devm_drm_dev_alloc
-:38: WARNING:NO_AUTHOR_SIGN_OFF: Missing Signed-off-by: line by nominal patch author 'Daniel Vetter <daniel.vetter@ffwll.ch>'
total: 0 errors, 1 warnings, 0 checks, 22 lines checked
7d059380b7de drm/hx8357d: Use devm_drm_dev_alloc
-:37: WARNING:NO_AUTHOR_SIGN_OFF: Missing Signed-off-by: line by nominal patch author 'Daniel Vetter <daniel.vetter@ffwll.ch>'
total: 0 errors, 1 warnings, 0 checks, 21 lines checked
3333eb394269 drm/gm12u320: Use devm_drm_dev_alloc
-:41: WARNING:NO_AUTHOR_SIGN_OFF: Missing Signed-off-by: line by nominal patch author 'Daniel Vetter <daniel.vetter@ffwll.ch>'
total: 0 errors, 1 warnings, 0 checks, 26 lines checked
3376d9019b4c drm/gm12u320: Don't use drm_device->dev_private
-:68: WARNING:NO_AUTHOR_SIGN_OFF: Missing Signed-off-by: line by nominal patch author 'Daniel Vetter <daniel.vetter@ffwll.ch>'
total: 0 errors, 1 warnings, 0 checks, 47 lines checked
02af73e35a85 drm/tidss: Use devm_drm_dev_alloc
-:40: WARNING:NO_AUTHOR_SIGN_OFF: Missing Signed-off-by: line by nominal patch author 'Daniel Vetter <daniel.vetter@ffwll.ch>'
total: 0 errors, 1 warnings, 0 checks, 24 lines checked
877109556b31 drm/tidss: Don't use drm_device->dev_private
-:216: WARNING:NO_AUTHOR_SIGN_OFF: Missing Signed-off-by: line by nominal patch author 'Daniel Vetter <daniel.vetter@ffwll.ch>'
total: 0 errors, 1 warnings, 0 checks, 160 lines checked
74d72be056ef drm/tidss: Delete tidss->saved_state
-:24: WARNING:NO_AUTHOR_SIGN_OFF: Missing Signed-off-by: line by nominal patch author 'Daniel Vetter <daniel.vetter@ffwll.ch>'
total: 0 errors, 1 warnings, 0 checks, 8 lines checked
05389abcb0c1 drm/qxl: Use devm_drm_dev_alloc
-:122: WARNING:NO_AUTHOR_SIGN_OFF: Missing Signed-off-by: line by nominal patch author 'Daniel Vetter <daniel.vetter@ffwll.ch>'
total: 0 errors, 1 warnings, 0 checks, 89 lines checked
d88455e402f4 drm/qxl: Don't use drm_device->dev_private
-:413: WARNING:NO_AUTHOR_SIGN_OFF: Missing Signed-off-by: line by nominal patch author 'Daniel Vetter <daniel.vetter@ffwll.ch>'
total: 0 errors, 1 warnings, 0 checks, 312 lines checked
3ac62531c793 drm/mcde: Use devm_drm_dev_alloc
-:43: WARNING:NO_AUTHOR_SIGN_OFF: Missing Signed-off-by: line by nominal patch author 'Daniel Vetter <daniel.vetter@ffwll.ch>'
total: 0 errors, 1 warnings, 0 checks, 28 lines checked
84a9b2b7c79f drm/mcde: Don't use drm_device->dev_private
-:116: WARNING:NO_AUTHOR_SIGN_OFF: Missing Signed-off-by: line by nominal patch author 'Daniel Vetter <daniel.vetter@ffwll.ch>'
total: 0 errors, 1 warnings, 0 checks, 79 lines checked
ec4f2c0b4634 drm/ingenic: Use devm_drm_dev_alloc
-:42: WARNING:NO_AUTHOR_SIGN_OFF: Missing Signed-off-by: line by nominal patch author 'Daniel Vetter <daniel.vetter@ffwll.ch>'
total: 0 errors, 1 warnings, 0 checks, 26 lines checked
30d321d9c183 drm/ingenic: Don't set drm_device->dev_private
-:22: WARNING:NO_AUTHOR_SIGN_OFF: Missing Signed-off-by: line by nominal patch author 'Daniel Vetter <daniel.vetter@ffwll.ch>'
total: 0 errors, 1 warnings, 0 checks, 7 lines checked
c689c28c7c33 drm/komeda: use devm_drm_dev_alloc
-:72: WARNING:NO_AUTHOR_SIGN_OFF: Missing Signed-off-by: line by nominal patch author 'Daniel Vetter <daniel.vetter@ffwll.ch>'
total: 0 errors, 1 warnings, 0 checks, 37 lines checked
c7f35d34191f drm/armada: Use devm_drm_dev_alloc
-:68: WARNING:NO_AUTHOR_SIGN_OFF: Missing Signed-off-by: line by nominal patch author 'Daniel Vetter <daniel.vetter@ffwll.ch>'
total: 0 errors, 1 warnings, 0 checks, 45 lines checked
db39d7083700 drm/armada: Don't use drm_device->dev_private
-:165: WARNING:NO_AUTHOR_SIGN_OFF: Missing Signed-off-by: line by nominal patch author 'Daniel Vetter <daniel.vetter@ffwll.ch>'
total: 0 errors, 1 warnings, 0 checks, 112 lines checked
6249fdd96afa drm/cirrus: Use devm_drm_dev_alloc
-:22: WARNING:OBSOLETE: drivers/gpu/drm/cirrus/cirrus.c is marked as 'obsolete' in the MAINTAINERS hierarchy. No unnecessary modifications please.
-:25: WARNING:OBSOLETE: drivers/gpu/drm/cirrus/cirrus.c is marked as 'obsolete' in the MAINTAINERS hierarchy. No unnecessary modifications please.
-:48: WARNING:NO_AUTHOR_SIGN_OFF: Missing Signed-off-by: line by nominal patch author 'Daniel Vetter <daniel.vetter@ffwll.ch>'
total: 0 errors, 3 warnings, 0 checks, 22 lines checked
98784a0227c1 drm/cirrus: Don't use drm_device->dev_private
-:23: WARNING:OBSOLETE: drivers/gpu/drm/cirrus/cirrus.c is marked as 'obsolete' in the MAINTAINERS hierarchy. No unnecessary modifications please.
-:26: WARNING:OBSOLETE: drivers/gpu/drm/cirrus/cirrus.c is marked as 'obsolete' in the MAINTAINERS hierarchy. No unnecessary modifications please.
-:70: WARNING:NO_AUTHOR_SIGN_OFF: Missing Signed-off-by: line by nominal patch author 'Daniel Vetter <daniel.vetter@ffwll.ch>'
total: 0 errors, 3 warnings, 0 checks, 39 lines checked
4a439cfa5fcf drm/i915: Use devm_drm_dev_alloc
-:60: WARNING:NO_AUTHOR_SIGN_OFF: Missing Signed-off-by: line by nominal patch author 'Daniel Vetter <daniel.vetter@ffwll.ch>'
total: 0 errors, 1 warnings, 0 checks, 38 lines checked
6393e4b92e1c drm/i915/selftest: Create mock_destroy_device
-:184: WARNING:NO_AUTHOR_SIGN_OFF: Missing Signed-off-by: line by nominal patch author 'Daniel Vetter <daniel.vetter@ffwll.ch>'
total: 0 errors, 1 warnings, 0 checks, 106 lines checked
3987454b5211 drm/i915/selftests: align more to real device lifetimes
-:78: WARNING:NO_AUTHOR_SIGN_OFF: Missing Signed-off-by: line by nominal patch author 'Daniel Vetter <daniel.vetter@ffwll.ch>'
total: 0 errors, 1 warnings, 0 checks, 57 lines checked
7b4b396a9651 drm/managed: Cleanup of unused functions and polishing docs
-:54: WARNING:TYPO_SPELLING: 'intial' may be misspelled - perhaps 'initial'?
#54: FILE: drivers/gpu/drm/drm_drv.c:246:
+ * management, vblank handling, modesetting support and intial output
-:325: WARNING:NO_AUTHOR_SIGN_OFF: Missing Signed-off-by: line by nominal patch author 'Daniel Vetter <daniel.vetter@ffwll.ch>'
total: 0 errors, 2 warnings, 0 checks, 263 lines checked
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply [flat|nested] 262+ messages in thread
* [Intel-gfx] ✓ Fi.CI.BAT: success for devm_drm_dev_alloc, no more drmm_add_final_kfree (rev3)
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
` (46 preceding siblings ...)
(?)
@ 2020-04-03 23:26 ` Patchwork
-1 siblings, 0 replies; 262+ messages in thread
From: Patchwork @ 2020-04-03 23:26 UTC (permalink / raw)
To: Daniel Vetter; +Cc: intel-gfx
== Series Details ==
Series: devm_drm_dev_alloc, no more drmm_add_final_kfree (rev3)
URL : https://patchwork.freedesktop.org/series/75463/
State : success
== Summary ==
CI Bug Log - changes from CI_DRM_8252 -> Patchwork_17210
====================================================
Summary
-------
**SUCCESS**
No regressions found.
External URL: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17210/index.html
Known issues
------------
Here are the changes found in Patchwork_17210 that come from known issues:
### IGT changes ###
#### Issues hit ####
* igt@i915_selftest@live@late_gt_pm:
- fi-bsw-nick: [PASS][1] -> [INCOMPLETE][2] ([i915#1382])
[1]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8252/fi-bsw-nick/igt@i915_selftest@live@late_gt_pm.html
[2]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17210/fi-bsw-nick/igt@i915_selftest@live@late_gt_pm.html
[i915#1382]: https://gitlab.freedesktop.org/drm/intel/issues/1382
Participating hosts (51 -> 39)
------------------------------
Missing (12): fi-ilk-m540 fi-hsw-4200u fi-byt-j1900 fi-hsw-peppy fi-byt-squawks fi-bsw-cyan fi-ilk-650 fi-bdw-samus fi-byt-n2820 fi-byt-clapper fi-skl-6600u fi-snb-2600
Build changes
-------------
* CI: CI-20190529 -> None
* Linux: CI_DRM_8252 -> Patchwork_17210
CI-20190529: 20190529
CI_DRM_8252: 3690abb8ed49d9a066f80de39e4e75792c86ac76 @ git://anongit.freedesktop.org/gfx-ci/linux
IGT_5563: 7ab7807727262b7ed7e12197b78e867287a17ef6 @ git://anongit.freedesktop.org/xorg/app/intel-gpu-tools
Patchwork_17210: 7b4b396a9651b81dd206bd91b4f9f0b15ffcb5bb @ git://anongit.freedesktop.org/gfx-ci/linux
== Linux commits ==
7b4b396a9651 drm/managed: Cleanup of unused functions and polishing docs
3987454b5211 drm/i915/selftests: align more to real device lifetimes
6393e4b92e1c drm/i915/selftest: Create mock_destroy_device
4a439cfa5fcf drm/i915: Use devm_drm_dev_alloc
98784a0227c1 drm/cirrus: Don't use drm_device->dev_private
6249fdd96afa drm/cirrus: Use devm_drm_dev_alloc
db39d7083700 drm/armada: Don't use drm_device->dev_private
c7f35d34191f drm/armada: Use devm_drm_dev_alloc
c689c28c7c33 drm/komeda: use devm_drm_dev_alloc
30d321d9c183 drm/ingenic: Don't set drm_device->dev_private
ec4f2c0b4634 drm/ingenic: Use devm_drm_dev_alloc
84a9b2b7c79f drm/mcde: Don't use drm_device->dev_private
3ac62531c793 drm/mcde: Use devm_drm_dev_alloc
d88455e402f4 drm/qxl: Don't use drm_device->dev_private
05389abcb0c1 drm/qxl: Use devm_drm_dev_alloc
74d72be056ef drm/tidss: Delete tidss->saved_state
877109556b31 drm/tidss: Don't use drm_device->dev_private
02af73e35a85 drm/tidss: Use devm_drm_dev_alloc
3376d9019b4c drm/gm12u320: Don't use drm_device->dev_private
3333eb394269 drm/gm12u320: Use devm_drm_dev_alloc
7d059380b7de drm/hx8357d: Use devm_drm_dev_alloc
4b8b9048fa61 drm/ili9225: Use devm_drm_dev_alloc
25c9c3f9e447 drm/ili9341: Use devm_drm_dev_alloc
a8b3f3a2dfb2 drm/ili9486: Use devm_drm_dev_alloc
6d7d1f235e30 drm/mi0283qt: Use devm_drm_dev_alloc
d5de90a7063e drm/repaper: Use devm_drm_dev_alloc
09e5644e82b8 drm/st7586: Use devm_drm_dev_alloc
3dc0b3b337f2 drm/st7735r: Use devm_drm_dev_alloc
4cb201d3bd97 drm/udl: don't set drm_device->dev_private
ec9cf4556e61 drm/udl: Use demv_drm_dev_alloc
66c944512b95 drm/v3d: Delete v3d_dev->pdev
f48e47f68a86 drm/v3d: Delete v3d_dev->dev
d25b70710de9 drm/v3d: Use devm_drm_dev_alloc
ec196f9e0be0 drm/v3d: Don't set drm_device->dev_private
6e4b89850b36 drm/vboxvideo: Use devm_gen_pool_create
9ba07a46cef1 drm/vboxvidoe: use managed pci functions
76793ba02626 drm/vboxvideo: Stop using drm_device->dev_private
098edba18627 drm/vboxvideo: Use devm_drm_dev_alloc
aae694a8a5d2 drm/vboxvideo: drop DRM_MTRR_WC #define
5920030f62ea drm/vkms: Use devm_drm_dev_alloc
a78829a54af6 drm/vgem: Use devm_drm_dev_alloc
ed01ac38e04a drm/device: Deprecate dev_private harder
e239d39afecc drm: Add devm_drm_dev_alloc macro
e72346e75771 drivers/base: Always release devres on device_del
== Logs ==
For more details see: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17210/index.html
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply [flat|nested] 262+ messages in thread
* [Intel-gfx] ✗ Fi.CI.IGT: failure for devm_drm_dev_alloc, no more drmm_add_final_kfree (rev3)
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
` (47 preceding siblings ...)
(?)
@ 2020-04-04 10:39 ` Patchwork
-1 siblings, 0 replies; 262+ messages in thread
From: Patchwork @ 2020-04-04 10:39 UTC (permalink / raw)
To: Daniel Vetter; +Cc: intel-gfx
== Series Details ==
Series: devm_drm_dev_alloc, no more drmm_add_final_kfree (rev3)
URL : https://patchwork.freedesktop.org/series/75463/
State : failure
== Summary ==
CI Bug Log - changes from CI_DRM_8252_full -> Patchwork_17210_full
====================================================
Summary
-------
**FAILURE**
Serious unknown changes coming with Patchwork_17210_full absolutely need to be
verified manually.
If you think the reported changes have nothing to do with the changes
introduced in Patchwork_17210_full, please notify your bug team to allow them
to document this new failure mode, which will reduce false positives in CI.
Possible new issues
-------------------
Here are the unknown changes that may have been introduced in Patchwork_17210_full:
### IGT changes ###
#### Possible regressions ####
* igt@i915_selftest@mock@requests:
- shard-kbl: [PASS][1] -> [INCOMPLETE][2]
[1]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8252/shard-kbl7/igt@i915_selftest@mock@requests.html
[2]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17210/shard-kbl3/igt@i915_selftest@mock@requests.html
- shard-apl: [PASS][3] -> [INCOMPLETE][4]
[3]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8252/shard-apl7/igt@i915_selftest@mock@requests.html
[4]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17210/shard-apl1/igt@i915_selftest@mock@requests.html
* igt@i915_selftest@mock@timelines:
- shard-iclb: [PASS][5] -> [INCOMPLETE][6]
[5]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8252/shard-iclb1/igt@i915_selftest@mock@timelines.html
[6]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17210/shard-iclb1/igt@i915_selftest@mock@timelines.html
- shard-tglb: [PASS][7] -> [INCOMPLETE][8]
[7]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8252/shard-tglb3/igt@i915_selftest@mock@timelines.html
[8]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17210/shard-tglb8/igt@i915_selftest@mock@timelines.html
* igt@runner@aborted:
- shard-iclb: NOTRUN -> [FAIL][9]
[9]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17210/shard-iclb1/igt@runner@aborted.html
#### Warnings ####
* igt@runner@aborted:
- shard-tglb: [FAIL][10] -> ([FAIL][11], [FAIL][12]) ([i915#1455])
[10]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8252/shard-tglb8/igt@runner@aborted.html
[11]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17210/shard-tglb6/igt@runner@aborted.html
[12]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17210/shard-tglb8/igt@runner@aborted.html
New tests
---------
New tests have been introduced between CI_DRM_8252_full and Patchwork_17210_full:
### New IGT tests (3) ###
* igt@prime_busy@after-wait:
- Statuses :
- Exec time: [None] s
* igt@prime_busy@before:
- Statuses :
- Exec time: [None] s
* igt@prime_busy@hang-wait:
- Statuses :
- Exec time: [None] s
Known issues
------------
Here are the changes found in Patchwork_17210_full that come from known issues:
### IGT changes ###
#### Issues hit ####
* igt@gem_eio@in-flight-suspend:
- shard-kbl: [PASS][13] -> [DMESG-WARN][14] ([i915#180]) +2 similar issues
[13]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8252/shard-kbl1/igt@gem_eio@in-flight-suspend.html
[14]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17210/shard-kbl1/igt@gem_eio@in-flight-suspend.html
* igt@i915_selftest@mock@requests:
- shard-glk: [PASS][15] -> [INCOMPLETE][16] ([i915#58] / [k.org#198133])
[15]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8252/shard-glk5/igt@i915_selftest@mock@requests.html
[16]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17210/shard-glk1/igt@i915_selftest@mock@requests.html
- shard-snb: [PASS][17] -> [INCOMPLETE][18] ([i915#82])
[17]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8252/shard-snb5/igt@i915_selftest@mock@requests.html
[18]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17210/shard-snb2/igt@i915_selftest@mock@requests.html
* igt@kms_cursor_crc@pipe-c-cursor-64x21-offscreen:
- shard-skl: [PASS][19] -> [FAIL][20] ([i915#54])
[19]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8252/shard-skl2/igt@kms_cursor_crc@pipe-c-cursor-64x21-offscreen.html
[20]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17210/shard-skl2/igt@kms_cursor_crc@pipe-c-cursor-64x21-offscreen.html
* igt@kms_cursor_legacy@2x-long-flip-vs-cursor-legacy:
- shard-glk: [PASS][21] -> [FAIL][22] ([i915#72])
[21]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8252/shard-glk1/igt@kms_cursor_legacy@2x-long-flip-vs-cursor-legacy.html
[22]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17210/shard-glk4/igt@kms_cursor_legacy@2x-long-flip-vs-cursor-legacy.html
* igt@kms_flip@flip-vs-expired-vblank:
- shard-apl: [PASS][23] -> [FAIL][24] ([i915#79])
[23]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8252/shard-apl3/igt@kms_flip@flip-vs-expired-vblank.html
[24]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17210/shard-apl8/igt@kms_flip@flip-vs-expired-vblank.html
* igt@kms_flip@plain-flip-fb-recreate:
- shard-skl: [PASS][25] -> [FAIL][26] ([i915#34])
[25]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8252/shard-skl1/igt@kms_flip@plain-flip-fb-recreate.html
[26]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17210/shard-skl5/igt@kms_flip@plain-flip-fb-recreate.html
* igt@kms_frontbuffer_tracking@fbc-suspend:
- shard-kbl: [PASS][27] -> [DMESG-WARN][28] ([i915#180] / [i915#93] / [i915#95])
[27]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8252/shard-kbl1/igt@kms_frontbuffer_tracking@fbc-suspend.html
[28]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17210/shard-kbl4/igt@kms_frontbuffer_tracking@fbc-suspend.html
* igt@kms_hdr@bpc-switch-dpms:
- shard-skl: [PASS][29] -> [FAIL][30] ([i915#1188])
[29]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8252/shard-skl7/igt@kms_hdr@bpc-switch-dpms.html
[30]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17210/shard-skl9/igt@kms_hdr@bpc-switch-dpms.html
- shard-kbl: [PASS][31] -> [FAIL][32] ([i915#1188])
[31]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8252/shard-kbl1/igt@kms_hdr@bpc-switch-dpms.html
[32]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17210/shard-kbl7/igt@kms_hdr@bpc-switch-dpms.html
* igt@kms_plane@plane-panning-bottom-right-suspend-pipe-b-planes:
- shard-apl: [PASS][33] -> [DMESG-WARN][34] ([i915#180]) +2 similar issues
[33]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8252/shard-apl4/igt@kms_plane@plane-panning-bottom-right-suspend-pipe-b-planes.html
[34]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17210/shard-apl1/igt@kms_plane@plane-panning-bottom-right-suspend-pipe-b-planes.html
* igt@kms_plane_alpha_blend@pipe-c-coverage-7efc:
- shard-skl: [PASS][35] -> [FAIL][36] ([fdo#108145] / [i915#265]) +2 similar issues
[35]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8252/shard-skl3/igt@kms_plane_alpha_blend@pipe-c-coverage-7efc.html
[36]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17210/shard-skl5/igt@kms_plane_alpha_blend@pipe-c-coverage-7efc.html
* igt@kms_psr@no_drrs:
- shard-iclb: [PASS][37] -> [FAIL][38] ([i915#173])
[37]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8252/shard-iclb4/igt@kms_psr@no_drrs.html
[38]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17210/shard-iclb1/igt@kms_psr@no_drrs.html
* igt@kms_psr@psr2_cursor_mmap_cpu:
- shard-iclb: [PASS][39] -> [SKIP][40] ([fdo#109441]) +4 similar issues
[39]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8252/shard-iclb2/igt@kms_psr@psr2_cursor_mmap_cpu.html
[40]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17210/shard-iclb1/igt@kms_psr@psr2_cursor_mmap_cpu.html
#### Possible fixes ####
* {igt@gem_ctx_isolation@preservation-s3@bcs0}:
- shard-kbl: [DMESG-WARN][41] ([i915#180]) -> [PASS][42] +3 similar issues
[41]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8252/shard-kbl4/igt@gem_ctx_isolation@preservation-s3@bcs0.html
[42]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17210/shard-kbl2/igt@gem_ctx_isolation@preservation-s3@bcs0.html
* igt@gem_exec_params@invalid-bsd-ring:
- shard-iclb: [SKIP][43] ([fdo#109276]) -> [PASS][44]
[43]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8252/shard-iclb8/igt@gem_exec_params@invalid-bsd-ring.html
[44]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17210/shard-iclb2/igt@gem_exec_params@invalid-bsd-ring.html
* igt@i915_suspend@debugfs-reader:
- shard-skl: [INCOMPLETE][45] ([i915#69]) -> [PASS][46]
[45]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8252/shard-skl8/igt@i915_suspend@debugfs-reader.html
[46]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17210/shard-skl5/igt@i915_suspend@debugfs-reader.html
* igt@kms_flip@2x-flip-vs-expired-vblank:
- shard-glk: [FAIL][47] ([i915#79]) -> [PASS][48]
[47]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8252/shard-glk2/igt@kms_flip@2x-flip-vs-expired-vblank.html
[48]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17210/shard-glk1/igt@kms_flip@2x-flip-vs-expired-vblank.html
* igt@kms_flip@flip-vs-suspend-interruptible:
- shard-apl: [DMESG-WARN][49] ([i915#180]) -> [PASS][50] +1 similar issue
[49]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8252/shard-apl3/igt@kms_flip@flip-vs-suspend-interruptible.html
[50]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17210/shard-apl3/igt@kms_flip@flip-vs-suspend-interruptible.html
* igt@kms_hdr@bpc-switch-dpms:
- shard-apl: [FAIL][51] ([i915#1188]) -> [PASS][52]
[51]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8252/shard-apl2/igt@kms_hdr@bpc-switch-dpms.html
[52]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17210/shard-apl2/igt@kms_hdr@bpc-switch-dpms.html
* igt@kms_hdr@bpc-switch-suspend:
- shard-skl: [FAIL][53] ([i915#1188]) -> [PASS][54]
[53]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8252/shard-skl6/igt@kms_hdr@bpc-switch-suspend.html
[54]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17210/shard-skl9/igt@kms_hdr@bpc-switch-suspend.html
* igt@kms_plane_lowres@pipe-a-tiling-x:
- shard-glk: [FAIL][55] ([i915#899]) -> [PASS][56]
[55]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8252/shard-glk6/igt@kms_plane_lowres@pipe-a-tiling-x.html
[56]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17210/shard-glk8/igt@kms_plane_lowres@pipe-a-tiling-x.html
* igt@kms_psr@psr2_primary_mmap_cpu:
- shard-iclb: [SKIP][57] ([fdo#109441]) -> [PASS][58] +2 similar issues
[57]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8252/shard-iclb5/igt@kms_psr@psr2_primary_mmap_cpu.html
[58]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17210/shard-iclb2/igt@kms_psr@psr2_primary_mmap_cpu.html
* {igt@perf@polling-parameterized}:
- shard-iclb: [FAIL][59] ([i915#1542]) -> [PASS][60]
[59]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8252/shard-iclb5/igt@perf@polling-parameterized.html
[60]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17210/shard-iclb7/igt@perf@polling-parameterized.html
#### Warnings ####
* igt@kms_plane_alpha_blend@pipe-a-alpha-7efc:
- shard-apl: [FAIL][61] ([fdo#108145] / [i915#265] / [i915#95]) -> [FAIL][62] ([fdo#108145] / [i915#265])
[61]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8252/shard-apl6/igt@kms_plane_alpha_blend@pipe-a-alpha-7efc.html
[62]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17210/shard-apl2/igt@kms_plane_alpha_blend@pipe-a-alpha-7efc.html
* igt@kms_plane_alpha_blend@pipe-a-alpha-basic:
- shard-apl: [FAIL][63] ([fdo#108145] / [i915#265]) -> [FAIL][64] ([fdo#108145] / [i915#265] / [i915#95])
[63]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8252/shard-apl4/igt@kms_plane_alpha_blend@pipe-a-alpha-basic.html
[64]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17210/shard-apl8/igt@kms_plane_alpha_blend@pipe-a-alpha-basic.html
* igt@runner@aborted:
- shard-kbl: [FAIL][65] ([i915#1423] / [i915#92]) -> ([FAIL][66], [FAIL][67]) ([i915#1423] / [i915#1455] / [i915#92])
[65]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8252/shard-kbl1/igt@runner@aborted.html
[66]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17210/shard-kbl7/igt@runner@aborted.html
[67]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17210/shard-kbl3/igt@runner@aborted.html
- shard-apl: [FAIL][68] ([i915#1423]) -> ([FAIL][69], [FAIL][70]) ([i915#1423] / [i915#1455])
[68]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8252/shard-apl2/igt@runner@aborted.html
[69]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17210/shard-apl2/igt@runner@aborted.html
[70]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17210/shard-apl1/igt@runner@aborted.html
{name}: This element is suppressed. This means it is ignored when computing
the status of the difference (SUCCESS, WARNING, or FAILURE).
[fdo#108145]: https://bugs.freedesktop.org/show_bug.cgi?id=108145
[fdo#109276]: https://bugs.freedesktop.org/show_bug.cgi?id=109276
[fdo#109441]: https://bugs.freedesktop.org/show_bug.cgi?id=109441
[i915#1188]: https://gitlab.freedesktop.org/drm/intel/issues/1188
[i915#1423]: https://gitlab.freedesktop.org/drm/intel/issues/1423
[i915#1455]: https://gitlab.freedesktop.org/drm/intel/issues/1455
[i915#1542]: https://gitlab.freedesktop.org/drm/intel/issues/1542
[i915#173]: https://gitlab.freedesktop.org/drm/intel/issues/173
[i915#180]: https://gitlab.freedesktop.org/drm/intel/issues/180
[i915#265]: https://gitlab.freedesktop.org/drm/intel/issues/265
[i915#34]: https://gitlab.freedesktop.org/drm/intel/issues/34
[i915#54]: https://gitlab.freedesktop.org/drm/intel/issues/54
[i915#58]: https://gitlab.freedesktop.org/drm/intel/issues/58
[i915#69]: https://gitlab.freedesktop.org/drm/intel/issues/69
[i915#72]: https://gitlab.freedesktop.org/drm/intel/issues/72
[i915#79]: https://gitlab.freedesktop.org/drm/intel/issues/79
[i915#82]: https://gitlab.freedesktop.org/drm/intel/issues/82
[i915#899]: https://gitlab.freedesktop.org/drm/intel/issues/899
[i915#92]: https://gitlab.freedesktop.org/drm/intel/issues/92
[i915#93]: https://gitlab.freedesktop.org/drm/intel/issues/93
[i915#95]: https://gitlab.freedesktop.org/drm/intel/issues/95
[k.org#198133]: https://bugzilla.kernel.org/show_bug.cgi?id=198133
Participating hosts (10 -> 10)
------------------------------
No changes in participating hosts
Build changes
-------------
* CI: CI-20190529 -> None
* Linux: CI_DRM_8252 -> Patchwork_17210
CI-20190529: 20190529
CI_DRM_8252: 3690abb8ed49d9a066f80de39e4e75792c86ac76 @ git://anongit.freedesktop.org/gfx-ci/linux
IGT_5563: 7ab7807727262b7ed7e12197b78e867287a17ef6 @ git://anongit.freedesktop.org/xorg/app/intel-gpu-tools
Patchwork_17210: 7b4b396a9651b81dd206bd91b4f9f0b15ffcb5bb @ git://anongit.freedesktop.org/gfx-ci/linux
piglit_4509: fdc5a4ca11124ab8413c7988896eec4c97336694 @ git://anongit.freedesktop.org/piglit
== Logs ==
For more details see: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17210/index.html
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 19/44] drm/repaper: Use devm_drm_dev_alloc
2020-04-03 13:58 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-05 10:00 ` Noralf Trønnes
-1 siblings, 0 replies; 262+ messages in thread
From: Noralf Trønnes @ 2020-04-05 10:00 UTC (permalink / raw)
To: Daniel Vetter, DRI Development; +Cc: Daniel Vetter, Intel Graphics Development
Den 03.04.2020 15.58, skrev Daniel Vetter:
> Already using devm_drm_dev_init, so very simple replacment.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: "Noralf Trønnes" <noralf@tronnes.org>
> ---
Acked-by: Noralf Trønnes <noralf@tronnes.org>
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [Intel-gfx] [PATCH 19/44] drm/repaper: Use devm_drm_dev_alloc
@ 2020-04-05 10:00 ` Noralf Trønnes
0 siblings, 0 replies; 262+ messages in thread
From: Noralf Trønnes @ 2020-04-05 10:00 UTC (permalink / raw)
To: Daniel Vetter, DRI Development; +Cc: Daniel Vetter, Intel Graphics Development
Den 03.04.2020 15.58, skrev Daniel Vetter:
> Already using devm_drm_dev_init, so very simple replacment.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: "Noralf Trønnes" <noralf@tronnes.org>
> ---
Acked-by: Noralf Trønnes <noralf@tronnes.org>
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 20/44] drm/mi0283qt: Use devm_drm_dev_alloc
2020-04-03 13:58 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-05 10:01 ` Noralf Trønnes
-1 siblings, 0 replies; 262+ messages in thread
From: Noralf Trønnes @ 2020-04-05 10:01 UTC (permalink / raw)
To: Daniel Vetter, DRI Development; +Cc: Daniel Vetter, Intel Graphics Development
Den 03.04.2020 15.58, skrev Daniel Vetter:
> Already using devm_drm_dev_init, so very simple replacment.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: "Noralf Trønnes" <noralf@tronnes.org>
> ---
Acked-by: Noralf Trønnes <noralf@tronnes.org>
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [Intel-gfx] [PATCH 20/44] drm/mi0283qt: Use devm_drm_dev_alloc
@ 2020-04-05 10:01 ` Noralf Trønnes
0 siblings, 0 replies; 262+ messages in thread
From: Noralf Trønnes @ 2020-04-05 10:01 UTC (permalink / raw)
To: Daniel Vetter, DRI Development; +Cc: Daniel Vetter, Intel Graphics Development
Den 03.04.2020 15.58, skrev Daniel Vetter:
> Already using devm_drm_dev_init, so very simple replacment.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: "Noralf Trønnes" <noralf@tronnes.org>
> ---
Acked-by: Noralf Trønnes <noralf@tronnes.org>
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 21/44] drm/ili9486: Use devm_drm_dev_alloc
2020-04-03 13:58 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-05 10:02 ` Noralf Trønnes
-1 siblings, 0 replies; 262+ messages in thread
From: Noralf Trønnes @ 2020-04-05 10:02 UTC (permalink / raw)
To: Daniel Vetter, DRI Development
Cc: Daniel Vetter, Intel Graphics Development, Kamlesh Gurudasani
Den 03.04.2020 15.58, skrev Daniel Vetter:
> Already using devm_drm_dev_init, so very simple replacment.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Kamlesh Gurudasani <kamlesh.gurudasani@gmail.com>
> ---
Acked-by: Noralf Trønnes <noralf@tronnes.org>
_______________________________________________
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^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [Intel-gfx] [PATCH 21/44] drm/ili9486: Use devm_drm_dev_alloc
@ 2020-04-05 10:02 ` Noralf Trønnes
0 siblings, 0 replies; 262+ messages in thread
From: Noralf Trønnes @ 2020-04-05 10:02 UTC (permalink / raw)
To: Daniel Vetter, DRI Development
Cc: Daniel Vetter, Intel Graphics Development, Kamlesh Gurudasani
Den 03.04.2020 15.58, skrev Daniel Vetter:
> Already using devm_drm_dev_init, so very simple replacment.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Kamlesh Gurudasani <kamlesh.gurudasani@gmail.com>
> ---
Acked-by: Noralf Trønnes <noralf@tronnes.org>
_______________________________________________
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Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 39/44] drm/cirrus: Use devm_drm_dev_alloc
2020-04-03 13:58 ` Daniel Vetter
(?)
@ 2020-04-05 10:04 ` Noralf Trønnes
-1 siblings, 0 replies; 262+ messages in thread
From: Noralf Trønnes @ 2020-04-05 10:04 UTC (permalink / raw)
To: Daniel Vetter, DRI Development
Cc: Rob Herring, Intel Graphics Development, virtualization,
Thomas Zimmermann, Dave Airlie, Daniel Vetter, Sam Ravnborg,
Emil Velikov
Den 03.04.2020 15.58, skrev Daniel Vetter:
> Already using devm_drm_dev_init, so very simple replacment.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Dave Airlie <airlied@redhat.com>
> Cc: Gerd Hoffmann <kraxel@redhat.com>
> Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
> Cc: Sam Ravnborg <sam@ravnborg.org>
> Cc: "Noralf Trønnes" <noralf@tronnes.org>
> Cc: Rob Herring <robh@kernel.org>
> Cc: Thomas Zimmermann <tzimmermann@suse.de>
> Cc: virtualization@lists.linux-foundation.org
> Cc: Emil Velikov <emil.velikov@collabora.com>
> ---
Acked-by: Noralf Trønnes <noralf@tronnes.org>
_______________________________________________
Virtualization mailing list
Virtualization@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/virtualization
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 39/44] drm/cirrus: Use devm_drm_dev_alloc
@ 2020-04-05 10:04 ` Noralf Trønnes
0 siblings, 0 replies; 262+ messages in thread
From: Noralf Trønnes @ 2020-04-05 10:04 UTC (permalink / raw)
To: Daniel Vetter, DRI Development
Cc: Intel Graphics Development, virtualization, Gerd Hoffmann,
Thomas Zimmermann, Dave Airlie, Daniel Vetter, Sam Ravnborg,
Emil Velikov
Den 03.04.2020 15.58, skrev Daniel Vetter:
> Already using devm_drm_dev_init, so very simple replacment.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Dave Airlie <airlied@redhat.com>
> Cc: Gerd Hoffmann <kraxel@redhat.com>
> Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
> Cc: Sam Ravnborg <sam@ravnborg.org>
> Cc: "Noralf Trønnes" <noralf@tronnes.org>
> Cc: Rob Herring <robh@kernel.org>
> Cc: Thomas Zimmermann <tzimmermann@suse.de>
> Cc: virtualization@lists.linux-foundation.org
> Cc: Emil Velikov <emil.velikov@collabora.com>
> ---
Acked-by: Noralf Trønnes <noralf@tronnes.org>
_______________________________________________
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^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [Intel-gfx] [PATCH 39/44] drm/cirrus: Use devm_drm_dev_alloc
@ 2020-04-05 10:04 ` Noralf Trønnes
0 siblings, 0 replies; 262+ messages in thread
From: Noralf Trønnes @ 2020-04-05 10:04 UTC (permalink / raw)
To: Daniel Vetter, DRI Development
Cc: Rob Herring, Intel Graphics Development, virtualization,
Gerd Hoffmann, Thomas Zimmermann, Dave Airlie, Daniel Vetter,
Sam Ravnborg, Emil Velikov
Den 03.04.2020 15.58, skrev Daniel Vetter:
> Already using devm_drm_dev_init, so very simple replacment.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Dave Airlie <airlied@redhat.com>
> Cc: Gerd Hoffmann <kraxel@redhat.com>
> Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
> Cc: Sam Ravnborg <sam@ravnborg.org>
> Cc: "Noralf Trønnes" <noralf@tronnes.org>
> Cc: Rob Herring <robh@kernel.org>
> Cc: Thomas Zimmermann <tzimmermann@suse.de>
> Cc: virtualization@lists.linux-foundation.org
> Cc: Emil Velikov <emil.velikov@collabora.com>
> ---
Acked-by: Noralf Trønnes <noralf@tronnes.org>
_______________________________________________
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https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 15/44] drm/udl: Use demv_drm_dev_alloc
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-05 10:18 ` Noralf Trønnes
-1 siblings, 0 replies; 262+ messages in thread
From: Noralf Trønnes @ 2020-04-05 10:18 UTC (permalink / raw)
To: Daniel Vetter, DRI Development
Cc: Sean Paul, Intel Graphics Development, Emil Velikov,
Thomas Zimmermann, Daniel Vetter, Dave Airlie, Thomas Gleixner,
Sam Ravnborg
Den 03.04.2020 15.57, skrev Daniel Vetter:
> Also init the fbdev emulation before we register the device, that way
> we can rely on the auto-cleanup and simplify the probe error code even
> more.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Dave Airlie <airlied@redhat.com>
> Cc: Sean Paul <sean@poorly.run>
> Cc: Thomas Zimmermann <tzimmermann@suse.de>
> Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
> Cc: Emil Velikov <emil.l.velikov@gmail.com>
> Cc: Sam Ravnborg <sam@ravnborg.org>
> Cc: Thomas Gleixner <tglx@linutronix.de>
> ---
> drivers/gpu/drm/udl/udl_drv.c | 36 +++++++++++------------------------
> 1 file changed, 11 insertions(+), 25 deletions(-)
>
> diff --git a/drivers/gpu/drm/udl/udl_drv.c b/drivers/gpu/drm/udl/udl_drv.c
> index 1ce2d865c36d..4ba5149fdd57 100644
> --- a/drivers/gpu/drm/udl/udl_drv.c
> +++ b/drivers/gpu/drm/udl/udl_drv.c
> @@ -57,27 +57,20 @@ static struct udl_device *udl_driver_create(struct usb_interface *interface)
> struct udl_device *udl;
> int r;
>
> - udl = kzalloc(sizeof(*udl), GFP_KERNEL);
> - if (!udl)
> - return ERR_PTR(-ENOMEM);
> -
> - r = drm_dev_init(&udl->drm, &driver, &interface->dev);
> - if (r) {
> - kfree(udl);
> - return ERR_PTR(r);
> - }
> + udl = devm_drm_dev_alloc(&interface->dev, &driver,
> + struct udl_device, drm);
> + if (IS_ERR(udl))
> + return udl;
>
> udl->udev = udev;
> udl->drm.dev_private = udl;
> - drmm_add_final_kfree(&udl->drm, udl);
>
> r = udl_init(udl);
> - if (r) {
> - drm_dev_put(&udl->drm);
> + if (r)
> return ERR_PTR(r);
> - }
>
> usb_set_intfdata(interface, udl);
> +
> return udl;
> }
>
> @@ -91,23 +84,17 @@ static int udl_usb_probe(struct usb_interface *interface,
> if (IS_ERR(udl))
> return PTR_ERR(udl);
>
> + r = drm_fbdev_generic_setup(&udl->drm, 0);
It doesn't feel right to have a client open the device before the DRM
device itself is registered. I would prefer to keep it where it is but
ignore any errors. A failing client shouldn't prevent the driver from
probing. drm_fbdev_generic_setup() do print errors if it fails. So yeah,
in hindsight I should have made drm_fbdev_generic_setup() return void.
Noralf.
> + if (r)
> + return r;
> +
> r = drm_dev_register(&udl->drm, 0);
> if (r)
> - goto err_free;
> + return r;
>
> DRM_INFO("Initialized udl on minor %d\n", udl->drm.primary->index);
>
> - r = drm_fbdev_generic_setup(&udl->drm, 0);
> - if (r)
> - goto err_drm_dev_unregister;
> -
> return 0;
> -
> -err_drm_dev_unregister:
> - drm_dev_unregister(&udl->drm);
> -err_free:
> - drm_dev_put(&udl->drm);
> - return r;
> }
>
> static void udl_usb_disconnect(struct usb_interface *interface)
> @@ -117,7 +104,6 @@ static void udl_usb_disconnect(struct usb_interface *interface)
> drm_kms_helper_poll_fini(dev);
> udl_drop_usb(dev);
> drm_dev_unplug(dev);
> - drm_dev_put(dev);
> }
>
> /*
>
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^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [Intel-gfx] [PATCH 15/44] drm/udl: Use demv_drm_dev_alloc
@ 2020-04-05 10:18 ` Noralf Trønnes
0 siblings, 0 replies; 262+ messages in thread
From: Noralf Trønnes @ 2020-04-05 10:18 UTC (permalink / raw)
To: Daniel Vetter, DRI Development
Cc: Intel Graphics Development, Thomas Zimmermann, Daniel Vetter,
Dave Airlie, Thomas Gleixner, Sam Ravnborg
Den 03.04.2020 15.57, skrev Daniel Vetter:
> Also init the fbdev emulation before we register the device, that way
> we can rely on the auto-cleanup and simplify the probe error code even
> more.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Dave Airlie <airlied@redhat.com>
> Cc: Sean Paul <sean@poorly.run>
> Cc: Thomas Zimmermann <tzimmermann@suse.de>
> Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
> Cc: Emil Velikov <emil.l.velikov@gmail.com>
> Cc: Sam Ravnborg <sam@ravnborg.org>
> Cc: Thomas Gleixner <tglx@linutronix.de>
> ---
> drivers/gpu/drm/udl/udl_drv.c | 36 +++++++++++------------------------
> 1 file changed, 11 insertions(+), 25 deletions(-)
>
> diff --git a/drivers/gpu/drm/udl/udl_drv.c b/drivers/gpu/drm/udl/udl_drv.c
> index 1ce2d865c36d..4ba5149fdd57 100644
> --- a/drivers/gpu/drm/udl/udl_drv.c
> +++ b/drivers/gpu/drm/udl/udl_drv.c
> @@ -57,27 +57,20 @@ static struct udl_device *udl_driver_create(struct usb_interface *interface)
> struct udl_device *udl;
> int r;
>
> - udl = kzalloc(sizeof(*udl), GFP_KERNEL);
> - if (!udl)
> - return ERR_PTR(-ENOMEM);
> -
> - r = drm_dev_init(&udl->drm, &driver, &interface->dev);
> - if (r) {
> - kfree(udl);
> - return ERR_PTR(r);
> - }
> + udl = devm_drm_dev_alloc(&interface->dev, &driver,
> + struct udl_device, drm);
> + if (IS_ERR(udl))
> + return udl;
>
> udl->udev = udev;
> udl->drm.dev_private = udl;
> - drmm_add_final_kfree(&udl->drm, udl);
>
> r = udl_init(udl);
> - if (r) {
> - drm_dev_put(&udl->drm);
> + if (r)
> return ERR_PTR(r);
> - }
>
> usb_set_intfdata(interface, udl);
> +
> return udl;
> }
>
> @@ -91,23 +84,17 @@ static int udl_usb_probe(struct usb_interface *interface,
> if (IS_ERR(udl))
> return PTR_ERR(udl);
>
> + r = drm_fbdev_generic_setup(&udl->drm, 0);
It doesn't feel right to have a client open the device before the DRM
device itself is registered. I would prefer to keep it where it is but
ignore any errors. A failing client shouldn't prevent the driver from
probing. drm_fbdev_generic_setup() do print errors if it fails. So yeah,
in hindsight I should have made drm_fbdev_generic_setup() return void.
Noralf.
> + if (r)
> + return r;
> +
> r = drm_dev_register(&udl->drm, 0);
> if (r)
> - goto err_free;
> + return r;
>
> DRM_INFO("Initialized udl on minor %d\n", udl->drm.primary->index);
>
> - r = drm_fbdev_generic_setup(&udl->drm, 0);
> - if (r)
> - goto err_drm_dev_unregister;
> -
> return 0;
> -
> -err_drm_dev_unregister:
> - drm_dev_unregister(&udl->drm);
> -err_free:
> - drm_dev_put(&udl->drm);
> - return r;
> }
>
> static void udl_usb_disconnect(struct usb_interface *interface)
> @@ -117,7 +104,6 @@ static void udl_usb_disconnect(struct usb_interface *interface)
> drm_kms_helper_poll_fini(dev);
> udl_drop_usb(dev);
> drm_dev_unplug(dev);
> - drm_dev_put(dev);
> }
>
> /*
>
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https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 02/44] drm: Add devm_drm_dev_alloc macro
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-05 10:20 ` Noralf Trønnes
-1 siblings, 0 replies; 262+ messages in thread
From: Noralf Trønnes @ 2020-04-05 10:20 UTC (permalink / raw)
To: Daniel Vetter, DRI Development
Cc: Paul Kocialkowski, Daniel Vetter, Intel Graphics Development,
Laurent Pinchart
Den 03.04.2020 15.57, skrev Daniel Vetter:
> The kerneldoc is only added for this new function. Existing kerneldoc
> and examples will be udated at the very end, since once all drivers
> are converted over to devm_drm_dev_alloc we can unexport a lot of
> interim functions and make the documentation for driver authors a lot
> cleaner and less confusing. There will be only one true way to
> initialize a drm_device at the end of this, which is going to be
> devm_drm_dev_alloc.
>
> Cc: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> ---
Acked-by: Noralf Trønnes <noralf@tronnes.org>
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^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [Intel-gfx] [PATCH 02/44] drm: Add devm_drm_dev_alloc macro
@ 2020-04-05 10:20 ` Noralf Trønnes
0 siblings, 0 replies; 262+ messages in thread
From: Noralf Trønnes @ 2020-04-05 10:20 UTC (permalink / raw)
To: Daniel Vetter, DRI Development
Cc: Paul Kocialkowski, Daniel Vetter, Intel Graphics Development,
Laurent Pinchart
Den 03.04.2020 15.57, skrev Daniel Vetter:
> The kerneldoc is only added for this new function. Existing kerneldoc
> and examples will be udated at the very end, since once all drivers
> are converted over to devm_drm_dev_alloc we can unexport a lot of
> interim functions and make the documentation for driver authors a lot
> cleaner and less confusing. There will be only one true way to
> initialize a drm_device at the end of this, which is going to be
> devm_drm_dev_alloc.
>
> Cc: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> ---
Acked-by: Noralf Trønnes <noralf@tronnes.org>
_______________________________________________
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https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 44/44] drm/managed: Cleanup of unused functions and polishing docs
2020-04-03 13:58 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-05 10:29 ` Noralf Trønnes
-1 siblings, 0 replies; 262+ messages in thread
From: Noralf Trønnes @ 2020-04-05 10:29 UTC (permalink / raw)
To: Daniel Vetter, DRI Development; +Cc: Daniel Vetter, Intel Graphics Development
Den 03.04.2020 15.58, skrev Daniel Vetter:
> Following functions are only used internally, not by drivers:
> - drm_dev_init
> - devm_drm_dev_init
> - drmm_add_final_kfree
>
> Also, now that we have a very slick and polished way to allocate a
> drm_device with devm_drm_dev_alloc, update all the docs to reflect the
> new reality. Mostly this consists of deleting old and misleading
> hints. Two main ones:
>
> - it is no longer required that the drm_device base class is first in
> the structure. devm_drm_dev_alloc can cope with it being anywhere
>
> - obviously embedded no needs devm_drm_dev_alloc
s/no/now/ ?
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> ---
<snip>
> @@ -240,13 +240,13 @@ void drm_minor_release(struct drm_minor *minor)
> * DOC: driver instance overview
> *
> * A device instance for a drm driver is represented by &struct drm_device. This
> - * is initialized with drm_dev_init(), usually from bus-specific ->probe()
> - * callbacks implemented by the driver. The driver then needs to initialize all
> - * the various subsystems for the drm device like memory management, vblank
> - * handling, modesetting support and intial output configuration plus obviously
> - * initialize all the corresponding hardware bits. Finally when everything is up
> - * and running and ready for userspace the device instance can be published
> - * using drm_dev_register().
> + * is allocated and initialized with devm_drm_dev_alloc(), usually from
> + * bus-specific ->probe() callbacks implemented by the driver. The driver then
> + * needs to initialize all the various subsystems for the drm device like memory
> + * management, vblank handling, modesetting support and intial output
s/intial/initial/
> + * configuration plus obviously initialize all the corresponding hardware bits.
> + * Finally when everything is up and running and ready for userspace the device
> + * instance can be published using drm_dev_register().
> *
> * There is also deprecated support for initalizing device instances using
> * bus-specific helpers and the &drm_driver.load callback. But due to
<snip>
> @@ -767,19 +706,9 @@ EXPORT_SYMBOL(__devm_drm_dev_alloc);
> * @driver: DRM driver to allocate device for
> * @parent: Parent device object
> *
> - * Allocate and initialize a new DRM device. No device registration is done.
> - * Call drm_dev_register() to advertice the device to user space and register it
> - * with other core subsystems. This should be done last in the device
> - * initialization sequence to make sure userspace can't access an inconsistent
> - * state.
> - *
> - * The initial ref-count of the object is 1. Use drm_dev_get() and
> - * drm_dev_put() to take and drop further ref-counts.
> - *
> - * Note that for purely virtual devices @parent can be NULL.
> - *
> - * Drivers that wish to subclass or embed &struct drm_device into their
> - * own struct should look at using drm_dev_init() instead.
> + * This is the deprecated version of devm_drm_dev_alloc(), which doesn not support
s/doesn/does/
> + * subclassing through embedding the struct &drm_device in a driver private
> + * structure, and which does not support automatic cleanup through devres.
> *
> * RETURNS:
> * Pointer to new DRM device, or ERR_PTR on failure.
Acked-by: Noralf Trønnes <noralf@tronnes.org>
_______________________________________________
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^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [Intel-gfx] [PATCH 44/44] drm/managed: Cleanup of unused functions and polishing docs
@ 2020-04-05 10:29 ` Noralf Trønnes
0 siblings, 0 replies; 262+ messages in thread
From: Noralf Trønnes @ 2020-04-05 10:29 UTC (permalink / raw)
To: Daniel Vetter, DRI Development; +Cc: Daniel Vetter, Intel Graphics Development
Den 03.04.2020 15.58, skrev Daniel Vetter:
> Following functions are only used internally, not by drivers:
> - drm_dev_init
> - devm_drm_dev_init
> - drmm_add_final_kfree
>
> Also, now that we have a very slick and polished way to allocate a
> drm_device with devm_drm_dev_alloc, update all the docs to reflect the
> new reality. Mostly this consists of deleting old and misleading
> hints. Two main ones:
>
> - it is no longer required that the drm_device base class is first in
> the structure. devm_drm_dev_alloc can cope with it being anywhere
>
> - obviously embedded no needs devm_drm_dev_alloc
s/no/now/ ?
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> ---
<snip>
> @@ -240,13 +240,13 @@ void drm_minor_release(struct drm_minor *minor)
> * DOC: driver instance overview
> *
> * A device instance for a drm driver is represented by &struct drm_device. This
> - * is initialized with drm_dev_init(), usually from bus-specific ->probe()
> - * callbacks implemented by the driver. The driver then needs to initialize all
> - * the various subsystems for the drm device like memory management, vblank
> - * handling, modesetting support and intial output configuration plus obviously
> - * initialize all the corresponding hardware bits. Finally when everything is up
> - * and running and ready for userspace the device instance can be published
> - * using drm_dev_register().
> + * is allocated and initialized with devm_drm_dev_alloc(), usually from
> + * bus-specific ->probe() callbacks implemented by the driver. The driver then
> + * needs to initialize all the various subsystems for the drm device like memory
> + * management, vblank handling, modesetting support and intial output
s/intial/initial/
> + * configuration plus obviously initialize all the corresponding hardware bits.
> + * Finally when everything is up and running and ready for userspace the device
> + * instance can be published using drm_dev_register().
> *
> * There is also deprecated support for initalizing device instances using
> * bus-specific helpers and the &drm_driver.load callback. But due to
<snip>
> @@ -767,19 +706,9 @@ EXPORT_SYMBOL(__devm_drm_dev_alloc);
> * @driver: DRM driver to allocate device for
> * @parent: Parent device object
> *
> - * Allocate and initialize a new DRM device. No device registration is done.
> - * Call drm_dev_register() to advertice the device to user space and register it
> - * with other core subsystems. This should be done last in the device
> - * initialization sequence to make sure userspace can't access an inconsistent
> - * state.
> - *
> - * The initial ref-count of the object is 1. Use drm_dev_get() and
> - * drm_dev_put() to take and drop further ref-counts.
> - *
> - * Note that for purely virtual devices @parent can be NULL.
> - *
> - * Drivers that wish to subclass or embed &struct drm_device into their
> - * own struct should look at using drm_dev_init() instead.
> + * This is the deprecated version of devm_drm_dev_alloc(), which doesn not support
s/doesn/does/
> + * subclassing through embedding the struct &drm_device in a driver private
> + * structure, and which does not support automatic cleanup through devres.
> *
> * RETURNS:
> * Pointer to new DRM device, or ERR_PTR on failure.
Acked-by: Noralf Trønnes <noralf@tronnes.org>
_______________________________________________
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https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 15/44] drm/udl: Use demv_drm_dev_alloc
2020-04-05 10:18 ` [Intel-gfx] " Noralf Trønnes
@ 2020-04-05 13:47 ` Daniel Vetter
-1 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-05 13:47 UTC (permalink / raw)
To: Noralf Trønnes
Cc: Sean Paul, Intel Graphics Development, Emil Velikov,
DRI Development, Thomas Zimmermann, Dave Airlie, Daniel Vetter,
Thomas Gleixner, Sam Ravnborg
On Sun, Apr 5, 2020 at 12:18 PM Noralf Trønnes <noralf@tronnes.org> wrote:
>
>
>
> Den 03.04.2020 15.57, skrev Daniel Vetter:
> > Also init the fbdev emulation before we register the device, that way
> > we can rely on the auto-cleanup and simplify the probe error code even
> > more.
> >
> > Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> > Cc: Dave Airlie <airlied@redhat.com>
> > Cc: Sean Paul <sean@poorly.run>
> > Cc: Thomas Zimmermann <tzimmermann@suse.de>
> > Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
> > Cc: Emil Velikov <emil.l.velikov@gmail.com>
> > Cc: Sam Ravnborg <sam@ravnborg.org>
> > Cc: Thomas Gleixner <tglx@linutronix.de>
> > ---
> > drivers/gpu/drm/udl/udl_drv.c | 36 +++++++++++------------------------
> > 1 file changed, 11 insertions(+), 25 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/udl/udl_drv.c b/drivers/gpu/drm/udl/udl_drv.c
> > index 1ce2d865c36d..4ba5149fdd57 100644
> > --- a/drivers/gpu/drm/udl/udl_drv.c
> > +++ b/drivers/gpu/drm/udl/udl_drv.c
> > @@ -57,27 +57,20 @@ static struct udl_device *udl_driver_create(struct usb_interface *interface)
> > struct udl_device *udl;
> > int r;
> >
> > - udl = kzalloc(sizeof(*udl), GFP_KERNEL);
> > - if (!udl)
> > - return ERR_PTR(-ENOMEM);
> > -
> > - r = drm_dev_init(&udl->drm, &driver, &interface->dev);
> > - if (r) {
> > - kfree(udl);
> > - return ERR_PTR(r);
> > - }
> > + udl = devm_drm_dev_alloc(&interface->dev, &driver,
> > + struct udl_device, drm);
> > + if (IS_ERR(udl))
> > + return udl;
> >
> > udl->udev = udev;
> > udl->drm.dev_private = udl;
> > - drmm_add_final_kfree(&udl->drm, udl);
> >
> > r = udl_init(udl);
> > - if (r) {
> > - drm_dev_put(&udl->drm);
> > + if (r)
> > return ERR_PTR(r);
> > - }
> >
> > usb_set_intfdata(interface, udl);
> > +
> > return udl;
> > }
> >
> > @@ -91,23 +84,17 @@ static int udl_usb_probe(struct usb_interface *interface,
> > if (IS_ERR(udl))
> > return PTR_ERR(udl);
> >
> > + r = drm_fbdev_generic_setup(&udl->drm, 0);
>
> It doesn't feel right to have a client open the device before the DRM
> device itself is registered. I would prefer to keep it where it is but
> ignore any errors. A failing client shouldn't prevent the driver from
> probing. drm_fbdev_generic_setup() do print errors if it fails. So yeah,
> in hindsight I should have made drm_fbdev_generic_setup() return void.
Hm, we have all kinds of usage right now, some check for errors, some
dont, some do this before drm_dev_register, some after. If your
recommendation is to not check for errors then I'm happy to implement
that, but we're a bit inconsistent. Maybe we should do a patch that at
least always returns 0 no matter what, plus document that the return
value shouldn't be checked?
-Daniel
>
> Noralf.
>
> > + if (r)
> > + return r;
> > +
> > r = drm_dev_register(&udl->drm, 0);
> > if (r)
> > - goto err_free;
> > + return r;
> >
> > DRM_INFO("Initialized udl on minor %d\n", udl->drm.primary->index);
> >
> > - r = drm_fbdev_generic_setup(&udl->drm, 0);
> > - if (r)
> > - goto err_drm_dev_unregister;
> > -
> > return 0;
> > -
> > -err_drm_dev_unregister:
> > - drm_dev_unregister(&udl->drm);
> > -err_free:
> > - drm_dev_put(&udl->drm);
> > - return r;
> > }
> >
> > static void udl_usb_disconnect(struct usb_interface *interface)
> > @@ -117,7 +104,6 @@ static void udl_usb_disconnect(struct usb_interface *interface)
> > drm_kms_helper_poll_fini(dev);
> > udl_drop_usb(dev);
> > drm_dev_unplug(dev);
> > - drm_dev_put(dev);
> > }
> >
> > /*
> >
--
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [Intel-gfx] [PATCH 15/44] drm/udl: Use demv_drm_dev_alloc
@ 2020-04-05 13:47 ` Daniel Vetter
0 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-05 13:47 UTC (permalink / raw)
To: Noralf Trønnes
Cc: Intel Graphics Development, DRI Development, Thomas Zimmermann,
Dave Airlie, Daniel Vetter, Thomas Gleixner, Sam Ravnborg
On Sun, Apr 5, 2020 at 12:18 PM Noralf Trønnes <noralf@tronnes.org> wrote:
>
>
>
> Den 03.04.2020 15.57, skrev Daniel Vetter:
> > Also init the fbdev emulation before we register the device, that way
> > we can rely on the auto-cleanup and simplify the probe error code even
> > more.
> >
> > Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> > Cc: Dave Airlie <airlied@redhat.com>
> > Cc: Sean Paul <sean@poorly.run>
> > Cc: Thomas Zimmermann <tzimmermann@suse.de>
> > Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
> > Cc: Emil Velikov <emil.l.velikov@gmail.com>
> > Cc: Sam Ravnborg <sam@ravnborg.org>
> > Cc: Thomas Gleixner <tglx@linutronix.de>
> > ---
> > drivers/gpu/drm/udl/udl_drv.c | 36 +++++++++++------------------------
> > 1 file changed, 11 insertions(+), 25 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/udl/udl_drv.c b/drivers/gpu/drm/udl/udl_drv.c
> > index 1ce2d865c36d..4ba5149fdd57 100644
> > --- a/drivers/gpu/drm/udl/udl_drv.c
> > +++ b/drivers/gpu/drm/udl/udl_drv.c
> > @@ -57,27 +57,20 @@ static struct udl_device *udl_driver_create(struct usb_interface *interface)
> > struct udl_device *udl;
> > int r;
> >
> > - udl = kzalloc(sizeof(*udl), GFP_KERNEL);
> > - if (!udl)
> > - return ERR_PTR(-ENOMEM);
> > -
> > - r = drm_dev_init(&udl->drm, &driver, &interface->dev);
> > - if (r) {
> > - kfree(udl);
> > - return ERR_PTR(r);
> > - }
> > + udl = devm_drm_dev_alloc(&interface->dev, &driver,
> > + struct udl_device, drm);
> > + if (IS_ERR(udl))
> > + return udl;
> >
> > udl->udev = udev;
> > udl->drm.dev_private = udl;
> > - drmm_add_final_kfree(&udl->drm, udl);
> >
> > r = udl_init(udl);
> > - if (r) {
> > - drm_dev_put(&udl->drm);
> > + if (r)
> > return ERR_PTR(r);
> > - }
> >
> > usb_set_intfdata(interface, udl);
> > +
> > return udl;
> > }
> >
> > @@ -91,23 +84,17 @@ static int udl_usb_probe(struct usb_interface *interface,
> > if (IS_ERR(udl))
> > return PTR_ERR(udl);
> >
> > + r = drm_fbdev_generic_setup(&udl->drm, 0);
>
> It doesn't feel right to have a client open the device before the DRM
> device itself is registered. I would prefer to keep it where it is but
> ignore any errors. A failing client shouldn't prevent the driver from
> probing. drm_fbdev_generic_setup() do print errors if it fails. So yeah,
> in hindsight I should have made drm_fbdev_generic_setup() return void.
Hm, we have all kinds of usage right now, some check for errors, some
dont, some do this before drm_dev_register, some after. If your
recommendation is to not check for errors then I'm happy to implement
that, but we're a bit inconsistent. Maybe we should do a patch that at
least always returns 0 no matter what, plus document that the return
value shouldn't be checked?
-Daniel
>
> Noralf.
>
> > + if (r)
> > + return r;
> > +
> > r = drm_dev_register(&udl->drm, 0);
> > if (r)
> > - goto err_free;
> > + return r;
> >
> > DRM_INFO("Initialized udl on minor %d\n", udl->drm.primary->index);
> >
> > - r = drm_fbdev_generic_setup(&udl->drm, 0);
> > - if (r)
> > - goto err_drm_dev_unregister;
> > -
> > return 0;
> > -
> > -err_drm_dev_unregister:
> > - drm_dev_unregister(&udl->drm);
> > -err_free:
> > - drm_dev_put(&udl->drm);
> > - return r;
> > }
> >
> > static void udl_usb_disconnect(struct usb_interface *interface)
> > @@ -117,7 +104,6 @@ static void udl_usb_disconnect(struct usb_interface *interface)
> > drm_kms_helper_poll_fini(dev);
> > udl_drop_usb(dev);
> > drm_dev_unplug(dev);
> > - drm_dev_put(dev);
> > }
> >
> > /*
> >
--
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 15/44] drm/udl: Use demv_drm_dev_alloc
2020-04-05 13:47 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-05 14:46 ` Noralf Trønnes
-1 siblings, 0 replies; 262+ messages in thread
From: Noralf Trønnes @ 2020-04-05 14:46 UTC (permalink / raw)
To: Daniel Vetter
Cc: Sean Paul, Intel Graphics Development, Emil Velikov,
DRI Development, Thomas Zimmermann, Dave Airlie, Daniel Vetter,
Thomas Gleixner, Sam Ravnborg
Den 05.04.2020 15.47, skrev Daniel Vetter:
> On Sun, Apr 5, 2020 at 12:18 PM Noralf Trønnes <noralf@tronnes.org> wrote:
>>
>>
>>
>> Den 03.04.2020 15.57, skrev Daniel Vetter:
>>> Also init the fbdev emulation before we register the device, that way
>>> we can rely on the auto-cleanup and simplify the probe error code even
>>> more.
>>>
>>> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
>>> Cc: Dave Airlie <airlied@redhat.com>
>>> Cc: Sean Paul <sean@poorly.run>
>>> Cc: Thomas Zimmermann <tzimmermann@suse.de>
>>> Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
>>> Cc: Emil Velikov <emil.l.velikov@gmail.com>
>>> Cc: Sam Ravnborg <sam@ravnborg.org>
>>> Cc: Thomas Gleixner <tglx@linutronix.de>
>>> ---
>>> drivers/gpu/drm/udl/udl_drv.c | 36 +++++++++++------------------------
>>> 1 file changed, 11 insertions(+), 25 deletions(-)
>>>
>>> diff --git a/drivers/gpu/drm/udl/udl_drv.c b/drivers/gpu/drm/udl/udl_drv.c
>>> index 1ce2d865c36d..4ba5149fdd57 100644
>>> --- a/drivers/gpu/drm/udl/udl_drv.c
>>> +++ b/drivers/gpu/drm/udl/udl_drv.c
>>> @@ -57,27 +57,20 @@ static struct udl_device *udl_driver_create(struct usb_interface *interface)
>>> struct udl_device *udl;
>>> int r;
>>>
>>> - udl = kzalloc(sizeof(*udl), GFP_KERNEL);
>>> - if (!udl)
>>> - return ERR_PTR(-ENOMEM);
>>> -
>>> - r = drm_dev_init(&udl->drm, &driver, &interface->dev);
>>> - if (r) {
>>> - kfree(udl);
>>> - return ERR_PTR(r);
>>> - }
>>> + udl = devm_drm_dev_alloc(&interface->dev, &driver,
>>> + struct udl_device, drm);
>>> + if (IS_ERR(udl))
>>> + return udl;
>>>
>>> udl->udev = udev;
>>> udl->drm.dev_private = udl;
>>> - drmm_add_final_kfree(&udl->drm, udl);
>>>
>>> r = udl_init(udl);
>>> - if (r) {
>>> - drm_dev_put(&udl->drm);
>>> + if (r)
>>> return ERR_PTR(r);
>>> - }
>>>
>>> usb_set_intfdata(interface, udl);
>>> +
>>> return udl;
>>> }
>>>
>>> @@ -91,23 +84,17 @@ static int udl_usb_probe(struct usb_interface *interface,
>>> if (IS_ERR(udl))
>>> return PTR_ERR(udl);
>>>
>>> + r = drm_fbdev_generic_setup(&udl->drm, 0);
>>
>> It doesn't feel right to have a client open the device before the DRM
>> device itself is registered. I would prefer to keep it where it is but
>> ignore any errors. A failing client shouldn't prevent the driver from
>> probing. drm_fbdev_generic_setup() do print errors if it fails. So yeah,
>> in hindsight I should have made drm_fbdev_generic_setup() return void.
>
> Hm, we have all kinds of usage right now, some check for errors, some
> dont, some do this before drm_dev_register, some after. If your
> recommendation is to not check for errors then I'm happy to implement
> that, but we're a bit inconsistent. Maybe we should do a patch that at
> least always returns 0 no matter what, plus document that the return
> value shouldn't be checked?
Yeah, always returning zero and documenting it would be a good start.
I counted 41 drivers using generic fbdev now, didn't know it was that
much used. Only 11 drivers are hand rolling their own:
armada
gma500
amd
omapdrm
nouveau
i915
msm
tegra
exynos
radeon
rockchip
Noralf.
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [Intel-gfx] [PATCH 15/44] drm/udl: Use demv_drm_dev_alloc
@ 2020-04-05 14:46 ` Noralf Trønnes
0 siblings, 0 replies; 262+ messages in thread
From: Noralf Trønnes @ 2020-04-05 14:46 UTC (permalink / raw)
To: Daniel Vetter
Cc: Intel Graphics Development, DRI Development, Thomas Zimmermann,
Dave Airlie, Daniel Vetter, Thomas Gleixner, Sam Ravnborg
Den 05.04.2020 15.47, skrev Daniel Vetter:
> On Sun, Apr 5, 2020 at 12:18 PM Noralf Trønnes <noralf@tronnes.org> wrote:
>>
>>
>>
>> Den 03.04.2020 15.57, skrev Daniel Vetter:
>>> Also init the fbdev emulation before we register the device, that way
>>> we can rely on the auto-cleanup and simplify the probe error code even
>>> more.
>>>
>>> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
>>> Cc: Dave Airlie <airlied@redhat.com>
>>> Cc: Sean Paul <sean@poorly.run>
>>> Cc: Thomas Zimmermann <tzimmermann@suse.de>
>>> Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
>>> Cc: Emil Velikov <emil.l.velikov@gmail.com>
>>> Cc: Sam Ravnborg <sam@ravnborg.org>
>>> Cc: Thomas Gleixner <tglx@linutronix.de>
>>> ---
>>> drivers/gpu/drm/udl/udl_drv.c | 36 +++++++++++------------------------
>>> 1 file changed, 11 insertions(+), 25 deletions(-)
>>>
>>> diff --git a/drivers/gpu/drm/udl/udl_drv.c b/drivers/gpu/drm/udl/udl_drv.c
>>> index 1ce2d865c36d..4ba5149fdd57 100644
>>> --- a/drivers/gpu/drm/udl/udl_drv.c
>>> +++ b/drivers/gpu/drm/udl/udl_drv.c
>>> @@ -57,27 +57,20 @@ static struct udl_device *udl_driver_create(struct usb_interface *interface)
>>> struct udl_device *udl;
>>> int r;
>>>
>>> - udl = kzalloc(sizeof(*udl), GFP_KERNEL);
>>> - if (!udl)
>>> - return ERR_PTR(-ENOMEM);
>>> -
>>> - r = drm_dev_init(&udl->drm, &driver, &interface->dev);
>>> - if (r) {
>>> - kfree(udl);
>>> - return ERR_PTR(r);
>>> - }
>>> + udl = devm_drm_dev_alloc(&interface->dev, &driver,
>>> + struct udl_device, drm);
>>> + if (IS_ERR(udl))
>>> + return udl;
>>>
>>> udl->udev = udev;
>>> udl->drm.dev_private = udl;
>>> - drmm_add_final_kfree(&udl->drm, udl);
>>>
>>> r = udl_init(udl);
>>> - if (r) {
>>> - drm_dev_put(&udl->drm);
>>> + if (r)
>>> return ERR_PTR(r);
>>> - }
>>>
>>> usb_set_intfdata(interface, udl);
>>> +
>>> return udl;
>>> }
>>>
>>> @@ -91,23 +84,17 @@ static int udl_usb_probe(struct usb_interface *interface,
>>> if (IS_ERR(udl))
>>> return PTR_ERR(udl);
>>>
>>> + r = drm_fbdev_generic_setup(&udl->drm, 0);
>>
>> It doesn't feel right to have a client open the device before the DRM
>> device itself is registered. I would prefer to keep it where it is but
>> ignore any errors. A failing client shouldn't prevent the driver from
>> probing. drm_fbdev_generic_setup() do print errors if it fails. So yeah,
>> in hindsight I should have made drm_fbdev_generic_setup() return void.
>
> Hm, we have all kinds of usage right now, some check for errors, some
> dont, some do this before drm_dev_register, some after. If your
> recommendation is to not check for errors then I'm happy to implement
> that, but we're a bit inconsistent. Maybe we should do a patch that at
> least always returns 0 no matter what, plus document that the return
> value shouldn't be checked?
Yeah, always returning zero and documenting it would be a good start.
I counted 41 drivers using generic fbdev now, didn't know it was that
much used. Only 11 drivers are hand rolling their own:
armada
gma500
amd
omapdrm
nouveau
i915
msm
tegra
exynos
radeon
rockchip
Noralf.
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 30/44] drm/qxl: Use devm_drm_dev_alloc
2020-04-03 13:58 ` Daniel Vetter
(?)
@ 2020-04-06 6:55 ` Gerd Hoffmann
-1 siblings, 0 replies; 262+ messages in thread
From: Gerd Hoffmann @ 2020-04-06 6:55 UTC (permalink / raw)
To: Daniel Vetter
Cc: Dave Airlie, Intel Graphics Development, DRI Development,
virtualization, spice-devel, Daniel Vetter
On Fri, Apr 03, 2020 at 03:58:14PM +0200, Daniel Vetter wrote:
> Also need to remove the drm_dev_put from the remove hook.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Dave Airlie <airlied@redhat.com>
> Cc: Gerd Hoffmann <kraxel@redhat.com>
> Cc: virtualization@lists.linux-foundation.org
> Cc: spice-devel@lists.freedesktop.org
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 30/44] drm/qxl: Use devm_drm_dev_alloc
@ 2020-04-06 6:55 ` Gerd Hoffmann
0 siblings, 0 replies; 262+ messages in thread
From: Gerd Hoffmann @ 2020-04-06 6:55 UTC (permalink / raw)
To: Daniel Vetter
Cc: Dave Airlie, Intel Graphics Development, DRI Development,
virtualization, spice-devel, Daniel Vetter
On Fri, Apr 03, 2020 at 03:58:14PM +0200, Daniel Vetter wrote:
> Also need to remove the drm_dev_put from the remove hook.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Dave Airlie <airlied@redhat.com>
> Cc: Gerd Hoffmann <kraxel@redhat.com>
> Cc: virtualization@lists.linux-foundation.org
> Cc: spice-devel@lists.freedesktop.org
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [Intel-gfx] [PATCH 30/44] drm/qxl: Use devm_drm_dev_alloc
@ 2020-04-06 6:55 ` Gerd Hoffmann
0 siblings, 0 replies; 262+ messages in thread
From: Gerd Hoffmann @ 2020-04-06 6:55 UTC (permalink / raw)
To: Daniel Vetter
Cc: Dave Airlie, Intel Graphics Development, DRI Development,
virtualization, spice-devel, Daniel Vetter
On Fri, Apr 03, 2020 at 03:58:14PM +0200, Daniel Vetter wrote:
> Also need to remove the drm_dev_put from the remove hook.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Dave Airlie <airlied@redhat.com>
> Cc: Gerd Hoffmann <kraxel@redhat.com>
> Cc: virtualization@lists.linux-foundation.org
> Cc: spice-devel@lists.freedesktop.org
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 31/44] drm/qxl: Don't use drm_device->dev_private
2020-04-03 13:58 ` Daniel Vetter
(?)
@ 2020-04-06 6:55 ` Gerd Hoffmann
-1 siblings, 0 replies; 262+ messages in thread
From: Gerd Hoffmann @ 2020-04-06 6:55 UTC (permalink / raw)
To: Daniel Vetter
Cc: Dave Airlie, Intel Graphics Development, DRI Development,
virtualization, spice-devel, Daniel Vetter
On Fri, Apr 03, 2020 at 03:58:15PM +0200, Daniel Vetter wrote:
> Upcasting using a container_of macro is more typesafe, faster and
> easier for the compiler to optimize.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Dave Airlie <airlied@redhat.com>
> Cc: Gerd Hoffmann <kraxel@redhat.com>
> Cc: virtualization@lists.linux-foundation.org
> Cc: spice-devel@lists.freedesktop.org
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 31/44] drm/qxl: Don't use drm_device->dev_private
@ 2020-04-06 6:55 ` Gerd Hoffmann
0 siblings, 0 replies; 262+ messages in thread
From: Gerd Hoffmann @ 2020-04-06 6:55 UTC (permalink / raw)
To: Daniel Vetter
Cc: Dave Airlie, Intel Graphics Development, DRI Development,
virtualization, spice-devel, Daniel Vetter
On Fri, Apr 03, 2020 at 03:58:15PM +0200, Daniel Vetter wrote:
> Upcasting using a container_of macro is more typesafe, faster and
> easier for the compiler to optimize.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Dave Airlie <airlied@redhat.com>
> Cc: Gerd Hoffmann <kraxel@redhat.com>
> Cc: virtualization@lists.linux-foundation.org
> Cc: spice-devel@lists.freedesktop.org
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [Intel-gfx] [PATCH 31/44] drm/qxl: Don't use drm_device->dev_private
@ 2020-04-06 6:55 ` Gerd Hoffmann
0 siblings, 0 replies; 262+ messages in thread
From: Gerd Hoffmann @ 2020-04-06 6:55 UTC (permalink / raw)
To: Daniel Vetter
Cc: Dave Airlie, Intel Graphics Development, DRI Development,
virtualization, spice-devel, Daniel Vetter
On Fri, Apr 03, 2020 at 03:58:15PM +0200, Daniel Vetter wrote:
> Upcasting using a container_of macro is more typesafe, faster and
> easier for the compiler to optimize.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Dave Airlie <airlied@redhat.com>
> Cc: Gerd Hoffmann <kraxel@redhat.com>
> Cc: virtualization@lists.linux-foundation.org
> Cc: spice-devel@lists.freedesktop.org
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 16/44] drm/udl: don't set drm_device->dev_private
2020-04-03 13:58 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-06 11:52 ` Thomas Zimmermann
-1 siblings, 0 replies; 262+ messages in thread
From: Thomas Zimmermann @ 2020-04-06 11:52 UTC (permalink / raw)
To: Daniel Vetter, DRI Development
Cc: Sean Paul, Intel Graphics Development, Emil Velikov,
José Roberto de Souza, Alexios Zavras, Laurent Pinchart,
Dave Airlie, Daniel Vetter, Thomas Gleixner, Sam Ravnborg,
Allison Randal, Gerd Hoffmann
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Am 03.04.20 um 15:58 schrieb Daniel Vetter:
> We're mostly there already, just a handful of places that didn't use
> the to_udl container_of cast. To make sure no new appear, don't set
> ->dev_private.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Dave Airlie <airlied@redhat.com>
> Cc: Sean Paul <sean@poorly.run>
> Cc: Emil Velikov <emil.l.velikov@gmail.com>
> Cc: Thomas Zimmermann <tzimmermann@suse.de>
> Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
> Cc: Alexios Zavras <alexios.zavras@intel.com>
> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
> Cc: Thomas Gleixner <tglx@linutronix.de>
> Cc: "José Roberto de Souza" <jose.souza@intel.com>
> Cc: Sam Ravnborg <sam@ravnborg.org>
> Cc: Gerd Hoffmann <kraxel@redhat.com>
> Cc: Allison Randal <allison@lohutok.net>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
> ---
> drivers/gpu/drm/udl/udl_connector.c | 4 ++--
> drivers/gpu/drm/udl/udl_drv.c | 1 -
> drivers/gpu/drm/udl/udl_modeset.c | 6 +++---
> 3 files changed, 5 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/gpu/drm/udl/udl_connector.c b/drivers/gpu/drm/udl/udl_connector.c
> index 0afdfb0d1fe1..cdc1c42e1669 100644
> --- a/drivers/gpu/drm/udl/udl_connector.c
> +++ b/drivers/gpu/drm/udl/udl_connector.c
> @@ -59,7 +59,7 @@ static int udl_get_modes(struct drm_connector *connector)
> static enum drm_mode_status udl_mode_valid(struct drm_connector *connector,
> struct drm_display_mode *mode)
> {
> - struct udl_device *udl = connector->dev->dev_private;
> + struct udl_device *udl = to_udl(connector->dev);
> if (!udl->sku_pixel_limit)
> return 0;
>
> @@ -72,7 +72,7 @@ static enum drm_mode_status udl_mode_valid(struct drm_connector *connector,
> static enum drm_connector_status
> udl_detect(struct drm_connector *connector, bool force)
> {
> - struct udl_device *udl = connector->dev->dev_private;
> + struct udl_device *udl = to_udl(connector->dev);
> struct udl_drm_connector *udl_connector =
> container_of(connector,
> struct udl_drm_connector,
> diff --git a/drivers/gpu/drm/udl/udl_drv.c b/drivers/gpu/drm/udl/udl_drv.c
> index 4ba5149fdd57..126545428895 100644
> --- a/drivers/gpu/drm/udl/udl_drv.c
> +++ b/drivers/gpu/drm/udl/udl_drv.c
> @@ -63,7 +63,6 @@ static struct udl_device *udl_driver_create(struct usb_interface *interface)
> return udl;
>
> udl->udev = udev;
> - udl->drm.dev_private = udl;
>
> r = udl_init(udl);
> if (r)
> diff --git a/drivers/gpu/drm/udl/udl_modeset.c b/drivers/gpu/drm/udl/udl_modeset.c
> index 8cad01f3d163..99518a826435 100644
> --- a/drivers/gpu/drm/udl/udl_modeset.c
> +++ b/drivers/gpu/drm/udl/udl_modeset.c
> @@ -215,7 +215,7 @@ static char *udl_dummy_render(char *wrptr)
> static int udl_crtc_write_mode_to_hw(struct drm_crtc *crtc)
> {
> struct drm_device *dev = crtc->dev;
> - struct udl_device *udl = dev->dev_private;
> + struct udl_device *udl = to_udl(dev);
> struct urb *urb;
> char *buf;
> int retval;
> @@ -369,7 +369,7 @@ udl_simple_display_pipe_enable(struct drm_simple_display_pipe *pipe,
> struct drm_crtc *crtc = &pipe->crtc;
> struct drm_device *dev = crtc->dev;
> struct drm_framebuffer *fb = plane_state->fb;
> - struct udl_device *udl = dev->dev_private;
> + struct udl_device *udl = to_udl(dev);
> struct drm_display_mode *mode = &crtc_state->mode;
> char *buf;
> char *wrptr;
> @@ -464,7 +464,7 @@ static const struct drm_mode_config_funcs udl_mode_funcs = {
> int udl_modeset_init(struct drm_device *dev)
> {
> size_t format_count = ARRAY_SIZE(udl_simple_display_pipe_formats);
> - struct udl_device *udl = dev->dev_private;
> + struct udl_device *udl = to_udl(dev);
> struct drm_connector *connector;
> int ret;
>
>
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Felix Imendörffer
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_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [Intel-gfx] [PATCH 16/44] drm/udl: don't set drm_device->dev_private
@ 2020-04-06 11:52 ` Thomas Zimmermann
0 siblings, 0 replies; 262+ messages in thread
From: Thomas Zimmermann @ 2020-04-06 11:52 UTC (permalink / raw)
To: Daniel Vetter, DRI Development
Cc: Intel Graphics Development, Alexios Zavras, Laurent Pinchart,
Dave Airlie, Daniel Vetter, Thomas Gleixner, Sam Ravnborg,
Allison Randal, Gerd Hoffmann
[-- Attachment #1.1.1: Type: text/plain, Size: 4034 bytes --]
Am 03.04.20 um 15:58 schrieb Daniel Vetter:
> We're mostly there already, just a handful of places that didn't use
> the to_udl container_of cast. To make sure no new appear, don't set
> ->dev_private.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Dave Airlie <airlied@redhat.com>
> Cc: Sean Paul <sean@poorly.run>
> Cc: Emil Velikov <emil.l.velikov@gmail.com>
> Cc: Thomas Zimmermann <tzimmermann@suse.de>
> Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
> Cc: Alexios Zavras <alexios.zavras@intel.com>
> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
> Cc: Thomas Gleixner <tglx@linutronix.de>
> Cc: "José Roberto de Souza" <jose.souza@intel.com>
> Cc: Sam Ravnborg <sam@ravnborg.org>
> Cc: Gerd Hoffmann <kraxel@redhat.com>
> Cc: Allison Randal <allison@lohutok.net>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
> ---
> drivers/gpu/drm/udl/udl_connector.c | 4 ++--
> drivers/gpu/drm/udl/udl_drv.c | 1 -
> drivers/gpu/drm/udl/udl_modeset.c | 6 +++---
> 3 files changed, 5 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/gpu/drm/udl/udl_connector.c b/drivers/gpu/drm/udl/udl_connector.c
> index 0afdfb0d1fe1..cdc1c42e1669 100644
> --- a/drivers/gpu/drm/udl/udl_connector.c
> +++ b/drivers/gpu/drm/udl/udl_connector.c
> @@ -59,7 +59,7 @@ static int udl_get_modes(struct drm_connector *connector)
> static enum drm_mode_status udl_mode_valid(struct drm_connector *connector,
> struct drm_display_mode *mode)
> {
> - struct udl_device *udl = connector->dev->dev_private;
> + struct udl_device *udl = to_udl(connector->dev);
> if (!udl->sku_pixel_limit)
> return 0;
>
> @@ -72,7 +72,7 @@ static enum drm_mode_status udl_mode_valid(struct drm_connector *connector,
> static enum drm_connector_status
> udl_detect(struct drm_connector *connector, bool force)
> {
> - struct udl_device *udl = connector->dev->dev_private;
> + struct udl_device *udl = to_udl(connector->dev);
> struct udl_drm_connector *udl_connector =
> container_of(connector,
> struct udl_drm_connector,
> diff --git a/drivers/gpu/drm/udl/udl_drv.c b/drivers/gpu/drm/udl/udl_drv.c
> index 4ba5149fdd57..126545428895 100644
> --- a/drivers/gpu/drm/udl/udl_drv.c
> +++ b/drivers/gpu/drm/udl/udl_drv.c
> @@ -63,7 +63,6 @@ static struct udl_device *udl_driver_create(struct usb_interface *interface)
> return udl;
>
> udl->udev = udev;
> - udl->drm.dev_private = udl;
>
> r = udl_init(udl);
> if (r)
> diff --git a/drivers/gpu/drm/udl/udl_modeset.c b/drivers/gpu/drm/udl/udl_modeset.c
> index 8cad01f3d163..99518a826435 100644
> --- a/drivers/gpu/drm/udl/udl_modeset.c
> +++ b/drivers/gpu/drm/udl/udl_modeset.c
> @@ -215,7 +215,7 @@ static char *udl_dummy_render(char *wrptr)
> static int udl_crtc_write_mode_to_hw(struct drm_crtc *crtc)
> {
> struct drm_device *dev = crtc->dev;
> - struct udl_device *udl = dev->dev_private;
> + struct udl_device *udl = to_udl(dev);
> struct urb *urb;
> char *buf;
> int retval;
> @@ -369,7 +369,7 @@ udl_simple_display_pipe_enable(struct drm_simple_display_pipe *pipe,
> struct drm_crtc *crtc = &pipe->crtc;
> struct drm_device *dev = crtc->dev;
> struct drm_framebuffer *fb = plane_state->fb;
> - struct udl_device *udl = dev->dev_private;
> + struct udl_device *udl = to_udl(dev);
> struct drm_display_mode *mode = &crtc_state->mode;
> char *buf;
> char *wrptr;
> @@ -464,7 +464,7 @@ static const struct drm_mode_config_funcs udl_mode_funcs = {
> int udl_modeset_init(struct drm_device *dev)
> {
> size_t format_count = ARRAY_SIZE(udl_simple_display_pipe_formats);
> - struct udl_device *udl = dev->dev_private;
> + struct udl_device *udl = to_udl(dev);
> struct drm_connector *connector;
> int ret;
>
>
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Felix Imendörffer
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_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 08/44] drm/vboxvideo: Stop using drm_device->dev_private
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-06 11:56 ` Thomas Zimmermann
-1 siblings, 0 replies; 262+ messages in thread
From: Thomas Zimmermann @ 2020-04-06 11:56 UTC (permalink / raw)
To: Daniel Vetter, DRI Development
Cc: Hans de Goede, Intel Graphics Development, Daniel Vetter
[-- Attachment #1.1.1: Type: text/plain, Size: 4923 bytes --]
Hi
Am 03.04.20 um 15:57 schrieb Daniel Vetter:
> We use the baseclass pattern here, so lets to the proper (and more
> typesafe) upcasting.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Hans de Goede <hdegoede@redhat.com>
> ---
> drivers/gpu/drm/vboxvideo/vbox_drv.c | 1 -
> drivers/gpu/drm/vboxvideo/vbox_drv.h | 1 +
> drivers/gpu/drm/vboxvideo/vbox_irq.c | 2 +-
> drivers/gpu/drm/vboxvideo/vbox_mode.c | 10 +++++-----
> 4 files changed, 7 insertions(+), 7 deletions(-)
>
> diff --git a/drivers/gpu/drm/vboxvideo/vbox_drv.c b/drivers/gpu/drm/vboxvideo/vbox_drv.c
> index be0600b22cf5..d34cddd809fd 100644
> --- a/drivers/gpu/drm/vboxvideo/vbox_drv.c
> +++ b/drivers/gpu/drm/vboxvideo/vbox_drv.c
> @@ -52,7 +52,6 @@ static int vbox_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
> return PTR_ERR(vbox);
>
> vbox->ddev.pdev = pdev;
> - vbox->ddev.dev_private = vbox;
> pci_set_drvdata(pdev, vbox);
> mutex_init(&vbox->hw_mutex);
>
> diff --git a/drivers/gpu/drm/vboxvideo/vbox_drv.h b/drivers/gpu/drm/vboxvideo/vbox_drv.h
> index 87421903816c..ac7c2effc46f 100644
> --- a/drivers/gpu/drm/vboxvideo/vbox_drv.h
> +++ b/drivers/gpu/drm/vboxvideo/vbox_drv.h
> @@ -127,6 +127,7 @@ struct vbox_encoder {
> #define to_vbox_crtc(x) container_of(x, struct vbox_crtc, base)
> #define to_vbox_connector(x) container_of(x, struct vbox_connector, base)
> #define to_vbox_encoder(x) container_of(x, struct vbox_encoder, base)
> +#define to_vbox_dev(x) container_of(x, struct vbox_private, ddev)
I suggest ot call this macro to to_vbox_device(). At some point, we
should rename struct vbox_private to struct vbox_device for consistency
among drivers. The new macro's name would then fit.
For the overall patch:
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Best regards
Thomas
>
> bool vbox_check_supported(u16 id);
> int vbox_hw_init(struct vbox_private *vbox);
> diff --git a/drivers/gpu/drm/vboxvideo/vbox_irq.c b/drivers/gpu/drm/vboxvideo/vbox_irq.c
> index 16a1e29f5292..631657fa554f 100644
> --- a/drivers/gpu/drm/vboxvideo/vbox_irq.c
> +++ b/drivers/gpu/drm/vboxvideo/vbox_irq.c
> @@ -34,7 +34,7 @@ void vbox_report_hotplug(struct vbox_private *vbox)
> irqreturn_t vbox_irq_handler(int irq, void *arg)
> {
> struct drm_device *dev = (struct drm_device *)arg;
> - struct vbox_private *vbox = (struct vbox_private *)dev->dev_private;
> + struct vbox_private *vbox = to_vbox_dev(dev);
> u32 host_flags = vbox_get_flags(vbox);
>
> if (!(host_flags & HGSMIHOSTFLAGS_IRQ))
> diff --git a/drivers/gpu/drm/vboxvideo/vbox_mode.c b/drivers/gpu/drm/vboxvideo/vbox_mode.c
> index 0883a435e62b..d9a5af62af89 100644
> --- a/drivers/gpu/drm/vboxvideo/vbox_mode.c
> +++ b/drivers/gpu/drm/vboxvideo/vbox_mode.c
> @@ -36,7 +36,7 @@ static void vbox_do_modeset(struct drm_crtc *crtc)
> u16 flags;
> s32 x_offset, y_offset;
>
> - vbox = crtc->dev->dev_private;
> + vbox = to_vbox_dev(crtc->dev);
> width = vbox_crtc->width ? vbox_crtc->width : 640;
> height = vbox_crtc->height ? vbox_crtc->height : 480;
> bpp = fb ? fb->format->cpp[0] * 8 : 32;
> @@ -77,7 +77,7 @@ static void vbox_do_modeset(struct drm_crtc *crtc)
> static int vbox_set_view(struct drm_crtc *crtc)
> {
> struct vbox_crtc *vbox_crtc = to_vbox_crtc(crtc);
> - struct vbox_private *vbox = crtc->dev->dev_private;
> + struct vbox_private *vbox = to_vbox_dev(crtc->dev);
> struct vbva_infoview *p;
>
> /*
> @@ -174,7 +174,7 @@ static void vbox_crtc_set_base_and_mode(struct drm_crtc *crtc,
> int x, int y)
> {
> struct drm_gem_vram_object *gbo = drm_gem_vram_of_gem(fb->obj[0]);
> - struct vbox_private *vbox = crtc->dev->dev_private;
> + struct vbox_private *vbox = to_vbox_dev(crtc->dev);
> struct vbox_crtc *vbox_crtc = to_vbox_crtc(crtc);
> bool needs_modeset = drm_atomic_crtc_needs_modeset(crtc->state);
>
> @@ -272,7 +272,7 @@ static void vbox_primary_atomic_update(struct drm_plane *plane,
> {
> struct drm_crtc *crtc = plane->state->crtc;
> struct drm_framebuffer *fb = plane->state->fb;
> - struct vbox_private *vbox = fb->dev->dev_private;
> + struct vbox_private *vbox = to_vbox_dev(fb->dev);
> struct drm_mode_rect *clips;
> uint32_t num_clips, i;
>
> @@ -704,7 +704,7 @@ static int vbox_get_modes(struct drm_connector *connector)
> int preferred_width, preferred_height;
>
> vbox_connector = to_vbox_connector(connector);
> - vbox = connector->dev->dev_private;
> + vbox = to_vbox_dev(connector->dev);
>
> hgsmi_report_flags_location(vbox->guest_pool, GUEST_HEAP_OFFSET(vbox) +
> HOST_FLAGS_OFFSET);
>
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Felix Imendörffer
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https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [Intel-gfx] [PATCH 08/44] drm/vboxvideo: Stop using drm_device->dev_private
@ 2020-04-06 11:56 ` Thomas Zimmermann
0 siblings, 0 replies; 262+ messages in thread
From: Thomas Zimmermann @ 2020-04-06 11:56 UTC (permalink / raw)
To: Daniel Vetter, DRI Development; +Cc: Intel Graphics Development, Daniel Vetter
[-- Attachment #1.1.1: Type: text/plain, Size: 4923 bytes --]
Hi
Am 03.04.20 um 15:57 schrieb Daniel Vetter:
> We use the baseclass pattern here, so lets to the proper (and more
> typesafe) upcasting.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Hans de Goede <hdegoede@redhat.com>
> ---
> drivers/gpu/drm/vboxvideo/vbox_drv.c | 1 -
> drivers/gpu/drm/vboxvideo/vbox_drv.h | 1 +
> drivers/gpu/drm/vboxvideo/vbox_irq.c | 2 +-
> drivers/gpu/drm/vboxvideo/vbox_mode.c | 10 +++++-----
> 4 files changed, 7 insertions(+), 7 deletions(-)
>
> diff --git a/drivers/gpu/drm/vboxvideo/vbox_drv.c b/drivers/gpu/drm/vboxvideo/vbox_drv.c
> index be0600b22cf5..d34cddd809fd 100644
> --- a/drivers/gpu/drm/vboxvideo/vbox_drv.c
> +++ b/drivers/gpu/drm/vboxvideo/vbox_drv.c
> @@ -52,7 +52,6 @@ static int vbox_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
> return PTR_ERR(vbox);
>
> vbox->ddev.pdev = pdev;
> - vbox->ddev.dev_private = vbox;
> pci_set_drvdata(pdev, vbox);
> mutex_init(&vbox->hw_mutex);
>
> diff --git a/drivers/gpu/drm/vboxvideo/vbox_drv.h b/drivers/gpu/drm/vboxvideo/vbox_drv.h
> index 87421903816c..ac7c2effc46f 100644
> --- a/drivers/gpu/drm/vboxvideo/vbox_drv.h
> +++ b/drivers/gpu/drm/vboxvideo/vbox_drv.h
> @@ -127,6 +127,7 @@ struct vbox_encoder {
> #define to_vbox_crtc(x) container_of(x, struct vbox_crtc, base)
> #define to_vbox_connector(x) container_of(x, struct vbox_connector, base)
> #define to_vbox_encoder(x) container_of(x, struct vbox_encoder, base)
> +#define to_vbox_dev(x) container_of(x, struct vbox_private, ddev)
I suggest ot call this macro to to_vbox_device(). At some point, we
should rename struct vbox_private to struct vbox_device for consistency
among drivers. The new macro's name would then fit.
For the overall patch:
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Best regards
Thomas
>
> bool vbox_check_supported(u16 id);
> int vbox_hw_init(struct vbox_private *vbox);
> diff --git a/drivers/gpu/drm/vboxvideo/vbox_irq.c b/drivers/gpu/drm/vboxvideo/vbox_irq.c
> index 16a1e29f5292..631657fa554f 100644
> --- a/drivers/gpu/drm/vboxvideo/vbox_irq.c
> +++ b/drivers/gpu/drm/vboxvideo/vbox_irq.c
> @@ -34,7 +34,7 @@ void vbox_report_hotplug(struct vbox_private *vbox)
> irqreturn_t vbox_irq_handler(int irq, void *arg)
> {
> struct drm_device *dev = (struct drm_device *)arg;
> - struct vbox_private *vbox = (struct vbox_private *)dev->dev_private;
> + struct vbox_private *vbox = to_vbox_dev(dev);
> u32 host_flags = vbox_get_flags(vbox);
>
> if (!(host_flags & HGSMIHOSTFLAGS_IRQ))
> diff --git a/drivers/gpu/drm/vboxvideo/vbox_mode.c b/drivers/gpu/drm/vboxvideo/vbox_mode.c
> index 0883a435e62b..d9a5af62af89 100644
> --- a/drivers/gpu/drm/vboxvideo/vbox_mode.c
> +++ b/drivers/gpu/drm/vboxvideo/vbox_mode.c
> @@ -36,7 +36,7 @@ static void vbox_do_modeset(struct drm_crtc *crtc)
> u16 flags;
> s32 x_offset, y_offset;
>
> - vbox = crtc->dev->dev_private;
> + vbox = to_vbox_dev(crtc->dev);
> width = vbox_crtc->width ? vbox_crtc->width : 640;
> height = vbox_crtc->height ? vbox_crtc->height : 480;
> bpp = fb ? fb->format->cpp[0] * 8 : 32;
> @@ -77,7 +77,7 @@ static void vbox_do_modeset(struct drm_crtc *crtc)
> static int vbox_set_view(struct drm_crtc *crtc)
> {
> struct vbox_crtc *vbox_crtc = to_vbox_crtc(crtc);
> - struct vbox_private *vbox = crtc->dev->dev_private;
> + struct vbox_private *vbox = to_vbox_dev(crtc->dev);
> struct vbva_infoview *p;
>
> /*
> @@ -174,7 +174,7 @@ static void vbox_crtc_set_base_and_mode(struct drm_crtc *crtc,
> int x, int y)
> {
> struct drm_gem_vram_object *gbo = drm_gem_vram_of_gem(fb->obj[0]);
> - struct vbox_private *vbox = crtc->dev->dev_private;
> + struct vbox_private *vbox = to_vbox_dev(crtc->dev);
> struct vbox_crtc *vbox_crtc = to_vbox_crtc(crtc);
> bool needs_modeset = drm_atomic_crtc_needs_modeset(crtc->state);
>
> @@ -272,7 +272,7 @@ static void vbox_primary_atomic_update(struct drm_plane *plane,
> {
> struct drm_crtc *crtc = plane->state->crtc;
> struct drm_framebuffer *fb = plane->state->fb;
> - struct vbox_private *vbox = fb->dev->dev_private;
> + struct vbox_private *vbox = to_vbox_dev(fb->dev);
> struct drm_mode_rect *clips;
> uint32_t num_clips, i;
>
> @@ -704,7 +704,7 @@ static int vbox_get_modes(struct drm_connector *connector)
> int preferred_width, preferred_height;
>
> vbox_connector = to_vbox_connector(connector);
> - vbox = connector->dev->dev_private;
> + vbox = to_vbox_dev(connector->dev);
>
> hgsmi_report_flags_location(vbox->guest_pool, GUEST_HEAP_OFFSET(vbox) +
> HOST_FLAGS_OFFSET);
>
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Felix Imendörffer
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_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 40/44] drm/cirrus: Don't use drm_device->dev_private
2020-04-03 13:58 ` Daniel Vetter
(?)
@ 2020-04-06 11:58 ` Thomas Zimmermann
-1 siblings, 0 replies; 262+ messages in thread
From: Thomas Zimmermann @ 2020-04-06 11:58 UTC (permalink / raw)
To: Daniel Vetter, DRI Development
Cc: Intel Graphics Development, virtualization, Dave Airlie,
Daniel Vetter, Sam Ravnborg
[-- Attachment #1.1.1: Type: text/plain, Size: 3094 bytes --]
Am 03.04.20 um 15:58 schrieb Daniel Vetter:
> Upcasting using a container_of macro is more typesafe, faster and
> easier for the compiler to optimize.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Dave Airlie <airlied@redhat.com>
> Cc: Gerd Hoffmann <kraxel@redhat.com>
> Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
> Cc: "Noralf Trønnes" <noralf@tronnes.org>
> Cc: Sam Ravnborg <sam@ravnborg.org>
> Cc: Eric Anholt <eric@anholt.net>
> Cc: Thomas Zimmermann <tzimmermann@suse.de>
> Cc: virtualization@lists.linux-foundation.org
> ---
> drivers/gpu/drm/cirrus/cirrus.c | 9 +++++----
> 1 file changed, 5 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/gpu/drm/cirrus/cirrus.c b/drivers/gpu/drm/cirrus/cirrus.c
> index 4b65637147ba..744a8e337e41 100644
> --- a/drivers/gpu/drm/cirrus/cirrus.c
> +++ b/drivers/gpu/drm/cirrus/cirrus.c
> @@ -59,6 +59,8 @@ struct cirrus_device {
> void __iomem *mmio;
> };
>
> +#define to_cirrus(_dev) container_of(_dev, struct cirrus_device, dev)
> +
Maybe to_cirrus_device() ? I had the same comment for vbox and I think
it applies to all patches.
Best regards
Thomas
> /* ------------------------------------------------------------------ */
> /*
> * The meat of this driver. The core passes us a mode and we have to program
> @@ -311,7 +313,7 @@ static int cirrus_mode_set(struct cirrus_device *cirrus,
> static int cirrus_fb_blit_rect(struct drm_framebuffer *fb,
> struct drm_rect *rect)
> {
> - struct cirrus_device *cirrus = fb->dev->dev_private;
> + struct cirrus_device *cirrus = to_cirrus(fb->dev);
> void *vmap;
> int idx, ret;
>
> @@ -436,7 +438,7 @@ static void cirrus_pipe_enable(struct drm_simple_display_pipe *pipe,
> struct drm_crtc_state *crtc_state,
> struct drm_plane_state *plane_state)
> {
> - struct cirrus_device *cirrus = pipe->crtc.dev->dev_private;
> + struct cirrus_device *cirrus = to_cirrus(pipe->crtc.dev);
>
> cirrus_mode_set(cirrus, &crtc_state->mode, plane_state->fb);
> cirrus_fb_blit_fullscreen(plane_state->fb);
> @@ -445,7 +447,7 @@ static void cirrus_pipe_enable(struct drm_simple_display_pipe *pipe,
> static void cirrus_pipe_update(struct drm_simple_display_pipe *pipe,
> struct drm_plane_state *old_state)
> {
> - struct cirrus_device *cirrus = pipe->crtc.dev->dev_private;
> + struct cirrus_device *cirrus = to_cirrus(pipe->crtc.dev);
> struct drm_plane_state *state = pipe->plane.state;
> struct drm_crtc *crtc = &pipe->crtc;
> struct drm_rect rect;
> @@ -573,7 +575,6 @@ static int cirrus_pci_probe(struct pci_dev *pdev,
> return PTR_ERR(cirrus);
>
> dev = &cirrus->dev;
> - dev->dev_private = cirrus;
>
> cirrus->vram = devm_ioremap(&pdev->dev, pci_resource_start(pdev, 0),
> pci_resource_len(pdev, 0));
>
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Felix Imendörffer
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_______________________________________________
Virtualization mailing list
Virtualization@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/virtualization
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 40/44] drm/cirrus: Don't use drm_device->dev_private
@ 2020-04-06 11:58 ` Thomas Zimmermann
0 siblings, 0 replies; 262+ messages in thread
From: Thomas Zimmermann @ 2020-04-06 11:58 UTC (permalink / raw)
To: Daniel Vetter, DRI Development
Cc: Intel Graphics Development, virtualization, Gerd Hoffmann,
Dave Airlie, Daniel Vetter, Sam Ravnborg
[-- Attachment #1.1.1: Type: text/plain, Size: 3094 bytes --]
Am 03.04.20 um 15:58 schrieb Daniel Vetter:
> Upcasting using a container_of macro is more typesafe, faster and
> easier for the compiler to optimize.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Dave Airlie <airlied@redhat.com>
> Cc: Gerd Hoffmann <kraxel@redhat.com>
> Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
> Cc: "Noralf Trønnes" <noralf@tronnes.org>
> Cc: Sam Ravnborg <sam@ravnborg.org>
> Cc: Eric Anholt <eric@anholt.net>
> Cc: Thomas Zimmermann <tzimmermann@suse.de>
> Cc: virtualization@lists.linux-foundation.org
> ---
> drivers/gpu/drm/cirrus/cirrus.c | 9 +++++----
> 1 file changed, 5 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/gpu/drm/cirrus/cirrus.c b/drivers/gpu/drm/cirrus/cirrus.c
> index 4b65637147ba..744a8e337e41 100644
> --- a/drivers/gpu/drm/cirrus/cirrus.c
> +++ b/drivers/gpu/drm/cirrus/cirrus.c
> @@ -59,6 +59,8 @@ struct cirrus_device {
> void __iomem *mmio;
> };
>
> +#define to_cirrus(_dev) container_of(_dev, struct cirrus_device, dev)
> +
Maybe to_cirrus_device() ? I had the same comment for vbox and I think
it applies to all patches.
Best regards
Thomas
> /* ------------------------------------------------------------------ */
> /*
> * The meat of this driver. The core passes us a mode and we have to program
> @@ -311,7 +313,7 @@ static int cirrus_mode_set(struct cirrus_device *cirrus,
> static int cirrus_fb_blit_rect(struct drm_framebuffer *fb,
> struct drm_rect *rect)
> {
> - struct cirrus_device *cirrus = fb->dev->dev_private;
> + struct cirrus_device *cirrus = to_cirrus(fb->dev);
> void *vmap;
> int idx, ret;
>
> @@ -436,7 +438,7 @@ static void cirrus_pipe_enable(struct drm_simple_display_pipe *pipe,
> struct drm_crtc_state *crtc_state,
> struct drm_plane_state *plane_state)
> {
> - struct cirrus_device *cirrus = pipe->crtc.dev->dev_private;
> + struct cirrus_device *cirrus = to_cirrus(pipe->crtc.dev);
>
> cirrus_mode_set(cirrus, &crtc_state->mode, plane_state->fb);
> cirrus_fb_blit_fullscreen(plane_state->fb);
> @@ -445,7 +447,7 @@ static void cirrus_pipe_enable(struct drm_simple_display_pipe *pipe,
> static void cirrus_pipe_update(struct drm_simple_display_pipe *pipe,
> struct drm_plane_state *old_state)
> {
> - struct cirrus_device *cirrus = pipe->crtc.dev->dev_private;
> + struct cirrus_device *cirrus = to_cirrus(pipe->crtc.dev);
> struct drm_plane_state *state = pipe->plane.state;
> struct drm_crtc *crtc = &pipe->crtc;
> struct drm_rect rect;
> @@ -573,7 +575,6 @@ static int cirrus_pci_probe(struct pci_dev *pdev,
> return PTR_ERR(cirrus);
>
> dev = &cirrus->dev;
> - dev->dev_private = cirrus;
>
> cirrus->vram = devm_ioremap(&pdev->dev, pci_resource_start(pdev, 0),
> pci_resource_len(pdev, 0));
>
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Felix Imendörffer
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_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [Intel-gfx] [PATCH 40/44] drm/cirrus: Don't use drm_device->dev_private
@ 2020-04-06 11:58 ` Thomas Zimmermann
0 siblings, 0 replies; 262+ messages in thread
From: Thomas Zimmermann @ 2020-04-06 11:58 UTC (permalink / raw)
To: Daniel Vetter, DRI Development
Cc: Intel Graphics Development, virtualization, Gerd Hoffmann,
Dave Airlie, Daniel Vetter, Sam Ravnborg
[-- Attachment #1.1.1: Type: text/plain, Size: 3094 bytes --]
Am 03.04.20 um 15:58 schrieb Daniel Vetter:
> Upcasting using a container_of macro is more typesafe, faster and
> easier for the compiler to optimize.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Dave Airlie <airlied@redhat.com>
> Cc: Gerd Hoffmann <kraxel@redhat.com>
> Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
> Cc: "Noralf Trønnes" <noralf@tronnes.org>
> Cc: Sam Ravnborg <sam@ravnborg.org>
> Cc: Eric Anholt <eric@anholt.net>
> Cc: Thomas Zimmermann <tzimmermann@suse.de>
> Cc: virtualization@lists.linux-foundation.org
> ---
> drivers/gpu/drm/cirrus/cirrus.c | 9 +++++----
> 1 file changed, 5 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/gpu/drm/cirrus/cirrus.c b/drivers/gpu/drm/cirrus/cirrus.c
> index 4b65637147ba..744a8e337e41 100644
> --- a/drivers/gpu/drm/cirrus/cirrus.c
> +++ b/drivers/gpu/drm/cirrus/cirrus.c
> @@ -59,6 +59,8 @@ struct cirrus_device {
> void __iomem *mmio;
> };
>
> +#define to_cirrus(_dev) container_of(_dev, struct cirrus_device, dev)
> +
Maybe to_cirrus_device() ? I had the same comment for vbox and I think
it applies to all patches.
Best regards
Thomas
> /* ------------------------------------------------------------------ */
> /*
> * The meat of this driver. The core passes us a mode and we have to program
> @@ -311,7 +313,7 @@ static int cirrus_mode_set(struct cirrus_device *cirrus,
> static int cirrus_fb_blit_rect(struct drm_framebuffer *fb,
> struct drm_rect *rect)
> {
> - struct cirrus_device *cirrus = fb->dev->dev_private;
> + struct cirrus_device *cirrus = to_cirrus(fb->dev);
> void *vmap;
> int idx, ret;
>
> @@ -436,7 +438,7 @@ static void cirrus_pipe_enable(struct drm_simple_display_pipe *pipe,
> struct drm_crtc_state *crtc_state,
> struct drm_plane_state *plane_state)
> {
> - struct cirrus_device *cirrus = pipe->crtc.dev->dev_private;
> + struct cirrus_device *cirrus = to_cirrus(pipe->crtc.dev);
>
> cirrus_mode_set(cirrus, &crtc_state->mode, plane_state->fb);
> cirrus_fb_blit_fullscreen(plane_state->fb);
> @@ -445,7 +447,7 @@ static void cirrus_pipe_enable(struct drm_simple_display_pipe *pipe,
> static void cirrus_pipe_update(struct drm_simple_display_pipe *pipe,
> struct drm_plane_state *old_state)
> {
> - struct cirrus_device *cirrus = pipe->crtc.dev->dev_private;
> + struct cirrus_device *cirrus = to_cirrus(pipe->crtc.dev);
> struct drm_plane_state *state = pipe->plane.state;
> struct drm_crtc *crtc = &pipe->crtc;
> struct drm_rect rect;
> @@ -573,7 +575,6 @@ static int cirrus_pci_probe(struct pci_dev *pdev,
> return PTR_ERR(cirrus);
>
> dev = &cirrus->dev;
> - dev->dev_private = cirrus;
>
> cirrus->vram = devm_ioremap(&pdev->dev, pci_resource_start(pdev, 0),
> pci_resource_len(pdev, 0));
>
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Felix Imendörffer
[-- Attachment #1.2: OpenPGP digital signature --]
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[-- Attachment #2: Type: text/plain, Size: 160 bytes --]
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 02/44] drm: Add devm_drm_dev_alloc macro
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-06 12:00 ` Laurent Pinchart
-1 siblings, 0 replies; 262+ messages in thread
From: Laurent Pinchart @ 2020-04-06 12:00 UTC (permalink / raw)
To: Daniel Vetter
Cc: Paul Kocialkowski, Daniel Vetter, Intel Graphics Development,
DRI Development
Hi Daniel,
Thank you for the patch.
On Fri, Apr 03, 2020 at 03:57:46PM +0200, Daniel Vetter wrote:
> The kerneldoc is only added for this new function. Existing kerneldoc
> and examples will be udated at the very end, since once all drivers
> are converted over to devm_drm_dev_alloc we can unexport a lot of
> interim functions and make the documentation for driver authors a lot
> cleaner and less confusing. There will be only one true way to
> initialize a drm_device at the end of this, which is going to be
> devm_drm_dev_alloc.
How about drivers that expose another interface towards userspace ? If
the other related subsystem also required allocation of the driver
private structure through its corresponding API, we'd be stuck. As
stated before, I want this API to be optional.
> Cc: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> ---
> drivers/gpu/drm/drm_drv.c | 23 +++++++++++++++++++++++
> include/drm/drm_drv.h | 33 +++++++++++++++++++++++++++++++++
> 2 files changed, 56 insertions(+)
>
> diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c
> index 1bb4f636b83c..9e60b784b3ac 100644
> --- a/drivers/gpu/drm/drm_drv.c
> +++ b/drivers/gpu/drm/drm_drv.c
> @@ -739,6 +739,29 @@ int devm_drm_dev_init(struct device *parent,
> }
> EXPORT_SYMBOL(devm_drm_dev_init);
>
> +void* __devm_drm_dev_alloc(struct device *parent, struct drm_driver *driver,
> + size_t size, size_t offset)
> +{
> + void *container;
> + struct drm_device *drm;
> + int ret;
> +
> + container = kzalloc(size, GFP_KERNEL);
> + if (!container)
> + return ERR_PTR(-ENOMEM);
> +
> + drm = container + offset;
> + ret = devm_drm_dev_init(parent, drm, driver);
> + if (ret) {
> + kfree(container);
> + return ERR_PTR(ret);
> + }
> + drmm_add_final_kfree(drm, container);
> +
> + return container;
> +}
> +EXPORT_SYMBOL(__devm_drm_dev_alloc);
> +
> /**
> * drm_dev_alloc - Allocate new DRM device
> * @driver: DRM driver to allocate device for
> diff --git a/include/drm/drm_drv.h b/include/drm/drm_drv.h
> index e7c6ea261ed1..26776be5a21e 100644
> --- a/include/drm/drm_drv.h
> +++ b/include/drm/drm_drv.h
> @@ -626,6 +626,39 @@ int devm_drm_dev_init(struct device *parent,
> struct drm_device *dev,
> struct drm_driver *driver);
>
> +void* __devm_drm_dev_alloc(struct device *parent, struct drm_driver *driver,
> + size_t size, size_t offset);
> +
> +/**
> + * devm_drm_dev_alloc - Resource managed allocation of a &drm_device instance
> + * @parent: Parent device object
> + * @driver: DRM driver
> + * @type: the type of the struct which contains struct &drm_device
> + * @member: the name of the &drm_device within @type.
> + *
> + * This allocates and initialize a new DRM device. No device registration is done.
> + * Call drm_dev_register() to advertice the device to user space and register it
> + * with other core subsystems. This should be done last in the device
> + * initialization sequence to make sure userspace can't access an inconsistent
> + * state.
> + *
> + * The initial ref-count of the object is 1. Use drm_dev_get() and
> + * drm_dev_put() to take and drop further ref-counts.
> + *
> + * It is recommended that drivers embed &struct drm_device into their own device
> + * structure.
> + *
> + * Note that this manages the lifetime of the resulting &drm_device
> + * automatically using devres. The DRM device initialized with this function is
> + * automatically put on driver detach using drm_dev_put().
> + *
> + * RETURNS:
> + * Pointer to new DRM device, or ERR_PTR on failure.
> + */
> +#define devm_drm_dev_alloc(parent, driver, type, member) \
> + ((type *) __devm_drm_dev_alloc(parent, driver, sizeof(type), \
> + offsetof(type, member)))
> +
> struct drm_device *drm_dev_alloc(struct drm_driver *driver,
> struct device *parent);
> int drm_dev_register(struct drm_device *dev, unsigned long flags);
--
Regards,
Laurent Pinchart
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [Intel-gfx] [PATCH 02/44] drm: Add devm_drm_dev_alloc macro
@ 2020-04-06 12:00 ` Laurent Pinchart
0 siblings, 0 replies; 262+ messages in thread
From: Laurent Pinchart @ 2020-04-06 12:00 UTC (permalink / raw)
To: Daniel Vetter
Cc: Paul Kocialkowski, Daniel Vetter, Intel Graphics Development,
DRI Development
Hi Daniel,
Thank you for the patch.
On Fri, Apr 03, 2020 at 03:57:46PM +0200, Daniel Vetter wrote:
> The kerneldoc is only added for this new function. Existing kerneldoc
> and examples will be udated at the very end, since once all drivers
> are converted over to devm_drm_dev_alloc we can unexport a lot of
> interim functions and make the documentation for driver authors a lot
> cleaner and less confusing. There will be only one true way to
> initialize a drm_device at the end of this, which is going to be
> devm_drm_dev_alloc.
How about drivers that expose another interface towards userspace ? If
the other related subsystem also required allocation of the driver
private structure through its corresponding API, we'd be stuck. As
stated before, I want this API to be optional.
> Cc: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> ---
> drivers/gpu/drm/drm_drv.c | 23 +++++++++++++++++++++++
> include/drm/drm_drv.h | 33 +++++++++++++++++++++++++++++++++
> 2 files changed, 56 insertions(+)
>
> diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c
> index 1bb4f636b83c..9e60b784b3ac 100644
> --- a/drivers/gpu/drm/drm_drv.c
> +++ b/drivers/gpu/drm/drm_drv.c
> @@ -739,6 +739,29 @@ int devm_drm_dev_init(struct device *parent,
> }
> EXPORT_SYMBOL(devm_drm_dev_init);
>
> +void* __devm_drm_dev_alloc(struct device *parent, struct drm_driver *driver,
> + size_t size, size_t offset)
> +{
> + void *container;
> + struct drm_device *drm;
> + int ret;
> +
> + container = kzalloc(size, GFP_KERNEL);
> + if (!container)
> + return ERR_PTR(-ENOMEM);
> +
> + drm = container + offset;
> + ret = devm_drm_dev_init(parent, drm, driver);
> + if (ret) {
> + kfree(container);
> + return ERR_PTR(ret);
> + }
> + drmm_add_final_kfree(drm, container);
> +
> + return container;
> +}
> +EXPORT_SYMBOL(__devm_drm_dev_alloc);
> +
> /**
> * drm_dev_alloc - Allocate new DRM device
> * @driver: DRM driver to allocate device for
> diff --git a/include/drm/drm_drv.h b/include/drm/drm_drv.h
> index e7c6ea261ed1..26776be5a21e 100644
> --- a/include/drm/drm_drv.h
> +++ b/include/drm/drm_drv.h
> @@ -626,6 +626,39 @@ int devm_drm_dev_init(struct device *parent,
> struct drm_device *dev,
> struct drm_driver *driver);
>
> +void* __devm_drm_dev_alloc(struct device *parent, struct drm_driver *driver,
> + size_t size, size_t offset);
> +
> +/**
> + * devm_drm_dev_alloc - Resource managed allocation of a &drm_device instance
> + * @parent: Parent device object
> + * @driver: DRM driver
> + * @type: the type of the struct which contains struct &drm_device
> + * @member: the name of the &drm_device within @type.
> + *
> + * This allocates and initialize a new DRM device. No device registration is done.
> + * Call drm_dev_register() to advertice the device to user space and register it
> + * with other core subsystems. This should be done last in the device
> + * initialization sequence to make sure userspace can't access an inconsistent
> + * state.
> + *
> + * The initial ref-count of the object is 1. Use drm_dev_get() and
> + * drm_dev_put() to take and drop further ref-counts.
> + *
> + * It is recommended that drivers embed &struct drm_device into their own device
> + * structure.
> + *
> + * Note that this manages the lifetime of the resulting &drm_device
> + * automatically using devres. The DRM device initialized with this function is
> + * automatically put on driver detach using drm_dev_put().
> + *
> + * RETURNS:
> + * Pointer to new DRM device, or ERR_PTR on failure.
> + */
> +#define devm_drm_dev_alloc(parent, driver, type, member) \
> + ((type *) __devm_drm_dev_alloc(parent, driver, sizeof(type), \
> + offsetof(type, member)))
> +
> struct drm_device *drm_dev_alloc(struct drm_driver *driver,
> struct device *parent);
> int drm_dev_register(struct drm_device *dev, unsigned long flags);
--
Regards,
Laurent Pinchart
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 15/44] drm/udl: Use demv_drm_dev_alloc
2020-04-05 10:18 ` [Intel-gfx] " Noralf Trønnes
@ 2020-04-06 12:05 ` Thomas Zimmermann
-1 siblings, 0 replies; 262+ messages in thread
From: Thomas Zimmermann @ 2020-04-06 12:05 UTC (permalink / raw)
To: Noralf Trønnes, Daniel Vetter, DRI Development
Cc: Sam Ravnborg, Intel Graphics Development, Emil Velikov,
Daniel Vetter, Dave Airlie, Thomas Gleixner, Sean Paul
[-- Attachment #1.1.1: Type: text/plain, Size: 3670 bytes --]
Am 05.04.20 um 12:18 schrieb Noralf Trønnes:
>
>
> Den 03.04.2020 15.57, skrev Daniel Vetter:
>> Also init the fbdev emulation before we register the device, that way
>> we can rely on the auto-cleanup and simplify the probe error code even
>> more.
>>
>> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
>> Cc: Dave Airlie <airlied@redhat.com>
>> Cc: Sean Paul <sean@poorly.run>
>> Cc: Thomas Zimmermann <tzimmermann@suse.de>
>> Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
>> Cc: Emil Velikov <emil.l.velikov@gmail.com>
>> Cc: Sam Ravnborg <sam@ravnborg.org>
>> Cc: Thomas Gleixner <tglx@linutronix.de>
>> ---
>> drivers/gpu/drm/udl/udl_drv.c | 36 +++++++++++------------------------
>> 1 file changed, 11 insertions(+), 25 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/udl/udl_drv.c b/drivers/gpu/drm/udl/udl_drv.c
>> index 1ce2d865c36d..4ba5149fdd57 100644
>> --- a/drivers/gpu/drm/udl/udl_drv.c
>> +++ b/drivers/gpu/drm/udl/udl_drv.c
>> @@ -57,27 +57,20 @@ static struct udl_device *udl_driver_create(struct usb_interface *interface)
>> struct udl_device *udl;
>> int r;
>>
>> - udl = kzalloc(sizeof(*udl), GFP_KERNEL);
>> - if (!udl)
>> - return ERR_PTR(-ENOMEM);
>> -
>> - r = drm_dev_init(&udl->drm, &driver, &interface->dev);
>> - if (r) {
>> - kfree(udl);
>> - return ERR_PTR(r);
>> - }
>> + udl = devm_drm_dev_alloc(&interface->dev, &driver,
>> + struct udl_device, drm);
>> + if (IS_ERR(udl))
>> + return udl;
>>
>> udl->udev = udev;
>> udl->drm.dev_private = udl;
>> - drmm_add_final_kfree(&udl->drm, udl);
>>
>> r = udl_init(udl);
>> - if (r) {
>> - drm_dev_put(&udl->drm);
>> + if (r)
>> return ERR_PTR(r);
>> - }
>>
>> usb_set_intfdata(interface, udl);
>> +
>> return udl;
>> }
>>
>> @@ -91,23 +84,17 @@ static int udl_usb_probe(struct usb_interface *interface,
>> if (IS_ERR(udl))
>> return PTR_ERR(udl);
>>
>> + r = drm_fbdev_generic_setup(&udl->drm, 0);
>
> It doesn't feel right to have a client open the device before the DRM
> device itself is registered. I would prefer to keep it where it is but
Agreed. IMHO we should also go through drivers and make the fbdev setup
the final step everywhere.
Best regards
Thomas
> ignore any errors. A failing client shouldn't prevent the driver from
> probing. drm_fbdev_generic_setup() do print errors if it fails. So yeah,
> in hindsight I should have made drm_fbdev_generic_setup() return void.
>
> Noralf.
>
>> + if (r)
>> + return r;
>> +
>> r = drm_dev_register(&udl->drm, 0);
>> if (r)
>> - goto err_free;
>> + return r;
>>
>> DRM_INFO("Initialized udl on minor %d\n", udl->drm.primary->index);
>>
>> - r = drm_fbdev_generic_setup(&udl->drm, 0);
>> - if (r)
>> - goto err_drm_dev_unregister;
>> -
>> return 0;
>> -
>> -err_drm_dev_unregister:
>> - drm_dev_unregister(&udl->drm);
>> -err_free:
>> - drm_dev_put(&udl->drm);
>> - return r;
>> }
>>
>> static void udl_usb_disconnect(struct usb_interface *interface)
>> @@ -117,7 +104,6 @@ static void udl_usb_disconnect(struct usb_interface *interface)
>> drm_kms_helper_poll_fini(dev);
>> udl_drop_usb(dev);
>> drm_dev_unplug(dev);
>> - drm_dev_put(dev);
>> }
>>
>> /*
>>
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
>
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Felix Imendörffer
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[-- Attachment #2: Type: text/plain, Size: 160 bytes --]
_______________________________________________
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https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [Intel-gfx] [PATCH 15/44] drm/udl: Use demv_drm_dev_alloc
@ 2020-04-06 12:05 ` Thomas Zimmermann
0 siblings, 0 replies; 262+ messages in thread
From: Thomas Zimmermann @ 2020-04-06 12:05 UTC (permalink / raw)
To: Noralf Trønnes, Daniel Vetter, DRI Development
Cc: Sam Ravnborg, Intel Graphics Development, Daniel Vetter,
Dave Airlie, Thomas Gleixner
[-- Attachment #1.1.1: Type: text/plain, Size: 3670 bytes --]
Am 05.04.20 um 12:18 schrieb Noralf Trønnes:
>
>
> Den 03.04.2020 15.57, skrev Daniel Vetter:
>> Also init the fbdev emulation before we register the device, that way
>> we can rely on the auto-cleanup and simplify the probe error code even
>> more.
>>
>> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
>> Cc: Dave Airlie <airlied@redhat.com>
>> Cc: Sean Paul <sean@poorly.run>
>> Cc: Thomas Zimmermann <tzimmermann@suse.de>
>> Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
>> Cc: Emil Velikov <emil.l.velikov@gmail.com>
>> Cc: Sam Ravnborg <sam@ravnborg.org>
>> Cc: Thomas Gleixner <tglx@linutronix.de>
>> ---
>> drivers/gpu/drm/udl/udl_drv.c | 36 +++++++++++------------------------
>> 1 file changed, 11 insertions(+), 25 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/udl/udl_drv.c b/drivers/gpu/drm/udl/udl_drv.c
>> index 1ce2d865c36d..4ba5149fdd57 100644
>> --- a/drivers/gpu/drm/udl/udl_drv.c
>> +++ b/drivers/gpu/drm/udl/udl_drv.c
>> @@ -57,27 +57,20 @@ static struct udl_device *udl_driver_create(struct usb_interface *interface)
>> struct udl_device *udl;
>> int r;
>>
>> - udl = kzalloc(sizeof(*udl), GFP_KERNEL);
>> - if (!udl)
>> - return ERR_PTR(-ENOMEM);
>> -
>> - r = drm_dev_init(&udl->drm, &driver, &interface->dev);
>> - if (r) {
>> - kfree(udl);
>> - return ERR_PTR(r);
>> - }
>> + udl = devm_drm_dev_alloc(&interface->dev, &driver,
>> + struct udl_device, drm);
>> + if (IS_ERR(udl))
>> + return udl;
>>
>> udl->udev = udev;
>> udl->drm.dev_private = udl;
>> - drmm_add_final_kfree(&udl->drm, udl);
>>
>> r = udl_init(udl);
>> - if (r) {
>> - drm_dev_put(&udl->drm);
>> + if (r)
>> return ERR_PTR(r);
>> - }
>>
>> usb_set_intfdata(interface, udl);
>> +
>> return udl;
>> }
>>
>> @@ -91,23 +84,17 @@ static int udl_usb_probe(struct usb_interface *interface,
>> if (IS_ERR(udl))
>> return PTR_ERR(udl);
>>
>> + r = drm_fbdev_generic_setup(&udl->drm, 0);
>
> It doesn't feel right to have a client open the device before the DRM
> device itself is registered. I would prefer to keep it where it is but
Agreed. IMHO we should also go through drivers and make the fbdev setup
the final step everywhere.
Best regards
Thomas
> ignore any errors. A failing client shouldn't prevent the driver from
> probing. drm_fbdev_generic_setup() do print errors if it fails. So yeah,
> in hindsight I should have made drm_fbdev_generic_setup() return void.
>
> Noralf.
>
>> + if (r)
>> + return r;
>> +
>> r = drm_dev_register(&udl->drm, 0);
>> if (r)
>> - goto err_free;
>> + return r;
>>
>> DRM_INFO("Initialized udl on minor %d\n", udl->drm.primary->index);
>>
>> - r = drm_fbdev_generic_setup(&udl->drm, 0);
>> - if (r)
>> - goto err_drm_dev_unregister;
>> -
>> return 0;
>> -
>> -err_drm_dev_unregister:
>> - drm_dev_unregister(&udl->drm);
>> -err_free:
>> - drm_dev_put(&udl->drm);
>> - return r;
>> }
>>
>> static void udl_usb_disconnect(struct usb_interface *interface)
>> @@ -117,7 +104,6 @@ static void udl_usb_disconnect(struct usb_interface *interface)
>> drm_kms_helper_poll_fini(dev);
>> udl_drop_usb(dev);
>> drm_dev_unplug(dev);
>> - drm_dev_put(dev);
>> }
>>
>> /*
>>
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
>
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Felix Imendörffer
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[-- Attachment #2: Type: text/plain, Size: 160 bytes --]
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 30/44] drm/qxl: Use devm_drm_dev_alloc
2020-04-03 13:58 ` Daniel Vetter
(?)
@ 2020-04-06 12:11 ` Thomas Zimmermann
-1 siblings, 0 replies; 262+ messages in thread
From: Thomas Zimmermann @ 2020-04-06 12:11 UTC (permalink / raw)
To: Daniel Vetter, DRI Development
Cc: Dave Airlie, Intel Graphics Development, virtualization,
Gerd Hoffmann, spice-devel, Daniel Vetter
[-- Attachment #1.1.1: Type: text/plain, Size: 4454 bytes --]
Am 03.04.20 um 15:58 schrieb Daniel Vetter:
> Also need to remove the drm_dev_put from the remove hook.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Dave Airlie <airlied@redhat.com>
> Cc: Gerd Hoffmann <kraxel@redhat.com>
> Cc: virtualization@lists.linux-foundation.org
> Cc: spice-devel@lists.freedesktop.org
> ---
> drivers/gpu/drm/qxl/qxl_drv.c | 15 ++++++++-------
> drivers/gpu/drm/qxl/qxl_drv.h | 3 +--
> drivers/gpu/drm/qxl/qxl_kms.c | 12 +-----------
> 3 files changed, 10 insertions(+), 20 deletions(-)
>
> diff --git a/drivers/gpu/drm/qxl/qxl_drv.c b/drivers/gpu/drm/qxl/qxl_drv.c
> index 09102e2efabc..6b4ae4c5fb76 100644
> --- a/drivers/gpu/drm/qxl/qxl_drv.c
> +++ b/drivers/gpu/drm/qxl/qxl_drv.c
> @@ -81,13 +81,16 @@ qxl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
> return -EINVAL; /* TODO: ENODEV ? */
> }
>
> - qdev = kzalloc(sizeof(struct qxl_device), GFP_KERNEL);
> - if (!qdev)
> + qdev = devm_drm_dev_alloc(&pdev->dev, &qxl_driver,
> + struct qxl_device, ddev);
> + if (IS_ERR(qdev)) {
> + pr_err("Unable to init drm dev");
> return -ENOMEM;
> + }
My feeling is that it is too early to allocate. Wouldn't it be better to
first do the pdev and conflicting-fb stuff and allocate right before
qxl_device_init() ?
Best regards
Thomas
>
> ret = pci_enable_device(pdev);
> if (ret)
> - goto free_dev;
> + return ret;
>
> ret = drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, "qxl");
> if (ret)
> @@ -101,7 +104,7 @@ qxl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
> }
> }
>
> - ret = qxl_device_init(qdev, &qxl_driver, pdev);
> + ret = qxl_device_init(qdev, pdev);
> if (ret)
> goto put_vga;
>
> @@ -128,8 +131,7 @@ qxl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
> vga_put(pdev, VGA_RSRC_LEGACY_IO);
> disable_pci:
> pci_disable_device(pdev);
> -free_dev:
> - kfree(qdev);
> +
> return ret;
> }
>
> @@ -155,7 +157,6 @@ qxl_pci_remove(struct pci_dev *pdev)
> drm_atomic_helper_shutdown(dev);
> if (is_vga(pdev))
> vga_put(pdev, VGA_RSRC_LEGACY_IO);
> - drm_dev_put(dev);
> }
>
> DEFINE_DRM_GEM_FOPS(qxl_fops);
> diff --git a/drivers/gpu/drm/qxl/qxl_drv.h b/drivers/gpu/drm/qxl/qxl_drv.h
> index 435126facc9b..86ac191d9205 100644
> --- a/drivers/gpu/drm/qxl/qxl_drv.h
> +++ b/drivers/gpu/drm/qxl/qxl_drv.h
> @@ -276,8 +276,7 @@ struct qxl_device {
> extern const struct drm_ioctl_desc qxl_ioctls[];
> extern int qxl_max_ioctl;
>
> -int qxl_device_init(struct qxl_device *qdev, struct drm_driver *drv,
> - struct pci_dev *pdev);
> +int qxl_device_init(struct qxl_device *qdev, struct pci_dev *pdev);
> void qxl_device_fini(struct qxl_device *qdev);
>
> int qxl_modeset_init(struct qxl_device *qdev);
> diff --git a/drivers/gpu/drm/qxl/qxl_kms.c b/drivers/gpu/drm/qxl/qxl_kms.c
> index 9eed1a375f24..91a34dd835d7 100644
> --- a/drivers/gpu/drm/qxl/qxl_kms.c
> +++ b/drivers/gpu/drm/qxl/qxl_kms.c
> @@ -108,21 +108,13 @@ static void qxl_gc_work(struct work_struct *work)
> }
>
> int qxl_device_init(struct qxl_device *qdev,
> - struct drm_driver *drv,
> struct pci_dev *pdev)
> {
> int r, sb;
>
> - r = drm_dev_init(&qdev->ddev, drv, &pdev->dev);
> - if (r) {
> - pr_err("Unable to init drm dev");
> - goto error;
> - }
> -
> qdev->ddev.pdev = pdev;
> pci_set_drvdata(pdev, &qdev->ddev);
> qdev->ddev.dev_private = qdev;
> - drmm_add_final_kfree(&qdev->ddev, qdev);
>
> mutex_init(&qdev->gem.mutex);
> mutex_init(&qdev->update_area_mutex);
> @@ -138,8 +130,7 @@ int qxl_device_init(struct qxl_device *qdev,
> qdev->vram_mapping = io_mapping_create_wc(qdev->vram_base, pci_resource_len(pdev, 0));
> if (!qdev->vram_mapping) {
> pr_err("Unable to create vram_mapping");
> - r = -ENOMEM;
> - goto error;
> + return -ENOMEM;
> }
>
> if (pci_resource_len(pdev, 4) > 0) {
> @@ -293,7 +284,6 @@ int qxl_device_init(struct qxl_device *qdev,
> io_mapping_free(qdev->surface_mapping);
> vram_mapping_free:
> io_mapping_free(qdev->vram_mapping);
> -error:
> return r;
> }
>
>
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Felix Imendörffer
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_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 30/44] drm/qxl: Use devm_drm_dev_alloc
@ 2020-04-06 12:11 ` Thomas Zimmermann
0 siblings, 0 replies; 262+ messages in thread
From: Thomas Zimmermann @ 2020-04-06 12:11 UTC (permalink / raw)
To: Daniel Vetter, DRI Development
Cc: Dave Airlie, Intel Graphics Development, virtualization,
Gerd Hoffmann, spice-devel, Daniel Vetter
[-- Attachment #1.1.1: Type: text/plain, Size: 4454 bytes --]
Am 03.04.20 um 15:58 schrieb Daniel Vetter:
> Also need to remove the drm_dev_put from the remove hook.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Dave Airlie <airlied@redhat.com>
> Cc: Gerd Hoffmann <kraxel@redhat.com>
> Cc: virtualization@lists.linux-foundation.org
> Cc: spice-devel@lists.freedesktop.org
> ---
> drivers/gpu/drm/qxl/qxl_drv.c | 15 ++++++++-------
> drivers/gpu/drm/qxl/qxl_drv.h | 3 +--
> drivers/gpu/drm/qxl/qxl_kms.c | 12 +-----------
> 3 files changed, 10 insertions(+), 20 deletions(-)
>
> diff --git a/drivers/gpu/drm/qxl/qxl_drv.c b/drivers/gpu/drm/qxl/qxl_drv.c
> index 09102e2efabc..6b4ae4c5fb76 100644
> --- a/drivers/gpu/drm/qxl/qxl_drv.c
> +++ b/drivers/gpu/drm/qxl/qxl_drv.c
> @@ -81,13 +81,16 @@ qxl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
> return -EINVAL; /* TODO: ENODEV ? */
> }
>
> - qdev = kzalloc(sizeof(struct qxl_device), GFP_KERNEL);
> - if (!qdev)
> + qdev = devm_drm_dev_alloc(&pdev->dev, &qxl_driver,
> + struct qxl_device, ddev);
> + if (IS_ERR(qdev)) {
> + pr_err("Unable to init drm dev");
> return -ENOMEM;
> + }
My feeling is that it is too early to allocate. Wouldn't it be better to
first do the pdev and conflicting-fb stuff and allocate right before
qxl_device_init() ?
Best regards
Thomas
>
> ret = pci_enable_device(pdev);
> if (ret)
> - goto free_dev;
> + return ret;
>
> ret = drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, "qxl");
> if (ret)
> @@ -101,7 +104,7 @@ qxl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
> }
> }
>
> - ret = qxl_device_init(qdev, &qxl_driver, pdev);
> + ret = qxl_device_init(qdev, pdev);
> if (ret)
> goto put_vga;
>
> @@ -128,8 +131,7 @@ qxl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
> vga_put(pdev, VGA_RSRC_LEGACY_IO);
> disable_pci:
> pci_disable_device(pdev);
> -free_dev:
> - kfree(qdev);
> +
> return ret;
> }
>
> @@ -155,7 +157,6 @@ qxl_pci_remove(struct pci_dev *pdev)
> drm_atomic_helper_shutdown(dev);
> if (is_vga(pdev))
> vga_put(pdev, VGA_RSRC_LEGACY_IO);
> - drm_dev_put(dev);
> }
>
> DEFINE_DRM_GEM_FOPS(qxl_fops);
> diff --git a/drivers/gpu/drm/qxl/qxl_drv.h b/drivers/gpu/drm/qxl/qxl_drv.h
> index 435126facc9b..86ac191d9205 100644
> --- a/drivers/gpu/drm/qxl/qxl_drv.h
> +++ b/drivers/gpu/drm/qxl/qxl_drv.h
> @@ -276,8 +276,7 @@ struct qxl_device {
> extern const struct drm_ioctl_desc qxl_ioctls[];
> extern int qxl_max_ioctl;
>
> -int qxl_device_init(struct qxl_device *qdev, struct drm_driver *drv,
> - struct pci_dev *pdev);
> +int qxl_device_init(struct qxl_device *qdev, struct pci_dev *pdev);
> void qxl_device_fini(struct qxl_device *qdev);
>
> int qxl_modeset_init(struct qxl_device *qdev);
> diff --git a/drivers/gpu/drm/qxl/qxl_kms.c b/drivers/gpu/drm/qxl/qxl_kms.c
> index 9eed1a375f24..91a34dd835d7 100644
> --- a/drivers/gpu/drm/qxl/qxl_kms.c
> +++ b/drivers/gpu/drm/qxl/qxl_kms.c
> @@ -108,21 +108,13 @@ static void qxl_gc_work(struct work_struct *work)
> }
>
> int qxl_device_init(struct qxl_device *qdev,
> - struct drm_driver *drv,
> struct pci_dev *pdev)
> {
> int r, sb;
>
> - r = drm_dev_init(&qdev->ddev, drv, &pdev->dev);
> - if (r) {
> - pr_err("Unable to init drm dev");
> - goto error;
> - }
> -
> qdev->ddev.pdev = pdev;
> pci_set_drvdata(pdev, &qdev->ddev);
> qdev->ddev.dev_private = qdev;
> - drmm_add_final_kfree(&qdev->ddev, qdev);
>
> mutex_init(&qdev->gem.mutex);
> mutex_init(&qdev->update_area_mutex);
> @@ -138,8 +130,7 @@ int qxl_device_init(struct qxl_device *qdev,
> qdev->vram_mapping = io_mapping_create_wc(qdev->vram_base, pci_resource_len(pdev, 0));
> if (!qdev->vram_mapping) {
> pr_err("Unable to create vram_mapping");
> - r = -ENOMEM;
> - goto error;
> + return -ENOMEM;
> }
>
> if (pci_resource_len(pdev, 4) > 0) {
> @@ -293,7 +284,6 @@ int qxl_device_init(struct qxl_device *qdev,
> io_mapping_free(qdev->surface_mapping);
> vram_mapping_free:
> io_mapping_free(qdev->vram_mapping);
> -error:
> return r;
> }
>
>
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Felix Imendörffer
[-- Attachment #1.2: OpenPGP digital signature --]
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[-- Attachment #2: Type: text/plain, Size: 160 bytes --]
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https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [Intel-gfx] [PATCH 30/44] drm/qxl: Use devm_drm_dev_alloc
@ 2020-04-06 12:11 ` Thomas Zimmermann
0 siblings, 0 replies; 262+ messages in thread
From: Thomas Zimmermann @ 2020-04-06 12:11 UTC (permalink / raw)
To: Daniel Vetter, DRI Development
Cc: Dave Airlie, Intel Graphics Development, virtualization,
Gerd Hoffmann, spice-devel, Daniel Vetter
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Am 03.04.20 um 15:58 schrieb Daniel Vetter:
> Also need to remove the drm_dev_put from the remove hook.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Dave Airlie <airlied@redhat.com>
> Cc: Gerd Hoffmann <kraxel@redhat.com>
> Cc: virtualization@lists.linux-foundation.org
> Cc: spice-devel@lists.freedesktop.org
> ---
> drivers/gpu/drm/qxl/qxl_drv.c | 15 ++++++++-------
> drivers/gpu/drm/qxl/qxl_drv.h | 3 +--
> drivers/gpu/drm/qxl/qxl_kms.c | 12 +-----------
> 3 files changed, 10 insertions(+), 20 deletions(-)
>
> diff --git a/drivers/gpu/drm/qxl/qxl_drv.c b/drivers/gpu/drm/qxl/qxl_drv.c
> index 09102e2efabc..6b4ae4c5fb76 100644
> --- a/drivers/gpu/drm/qxl/qxl_drv.c
> +++ b/drivers/gpu/drm/qxl/qxl_drv.c
> @@ -81,13 +81,16 @@ qxl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
> return -EINVAL; /* TODO: ENODEV ? */
> }
>
> - qdev = kzalloc(sizeof(struct qxl_device), GFP_KERNEL);
> - if (!qdev)
> + qdev = devm_drm_dev_alloc(&pdev->dev, &qxl_driver,
> + struct qxl_device, ddev);
> + if (IS_ERR(qdev)) {
> + pr_err("Unable to init drm dev");
> return -ENOMEM;
> + }
My feeling is that it is too early to allocate. Wouldn't it be better to
first do the pdev and conflicting-fb stuff and allocate right before
qxl_device_init() ?
Best regards
Thomas
>
> ret = pci_enable_device(pdev);
> if (ret)
> - goto free_dev;
> + return ret;
>
> ret = drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, "qxl");
> if (ret)
> @@ -101,7 +104,7 @@ qxl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
> }
> }
>
> - ret = qxl_device_init(qdev, &qxl_driver, pdev);
> + ret = qxl_device_init(qdev, pdev);
> if (ret)
> goto put_vga;
>
> @@ -128,8 +131,7 @@ qxl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
> vga_put(pdev, VGA_RSRC_LEGACY_IO);
> disable_pci:
> pci_disable_device(pdev);
> -free_dev:
> - kfree(qdev);
> +
> return ret;
> }
>
> @@ -155,7 +157,6 @@ qxl_pci_remove(struct pci_dev *pdev)
> drm_atomic_helper_shutdown(dev);
> if (is_vga(pdev))
> vga_put(pdev, VGA_RSRC_LEGACY_IO);
> - drm_dev_put(dev);
> }
>
> DEFINE_DRM_GEM_FOPS(qxl_fops);
> diff --git a/drivers/gpu/drm/qxl/qxl_drv.h b/drivers/gpu/drm/qxl/qxl_drv.h
> index 435126facc9b..86ac191d9205 100644
> --- a/drivers/gpu/drm/qxl/qxl_drv.h
> +++ b/drivers/gpu/drm/qxl/qxl_drv.h
> @@ -276,8 +276,7 @@ struct qxl_device {
> extern const struct drm_ioctl_desc qxl_ioctls[];
> extern int qxl_max_ioctl;
>
> -int qxl_device_init(struct qxl_device *qdev, struct drm_driver *drv,
> - struct pci_dev *pdev);
> +int qxl_device_init(struct qxl_device *qdev, struct pci_dev *pdev);
> void qxl_device_fini(struct qxl_device *qdev);
>
> int qxl_modeset_init(struct qxl_device *qdev);
> diff --git a/drivers/gpu/drm/qxl/qxl_kms.c b/drivers/gpu/drm/qxl/qxl_kms.c
> index 9eed1a375f24..91a34dd835d7 100644
> --- a/drivers/gpu/drm/qxl/qxl_kms.c
> +++ b/drivers/gpu/drm/qxl/qxl_kms.c
> @@ -108,21 +108,13 @@ static void qxl_gc_work(struct work_struct *work)
> }
>
> int qxl_device_init(struct qxl_device *qdev,
> - struct drm_driver *drv,
> struct pci_dev *pdev)
> {
> int r, sb;
>
> - r = drm_dev_init(&qdev->ddev, drv, &pdev->dev);
> - if (r) {
> - pr_err("Unable to init drm dev");
> - goto error;
> - }
> -
> qdev->ddev.pdev = pdev;
> pci_set_drvdata(pdev, &qdev->ddev);
> qdev->ddev.dev_private = qdev;
> - drmm_add_final_kfree(&qdev->ddev, qdev);
>
> mutex_init(&qdev->gem.mutex);
> mutex_init(&qdev->update_area_mutex);
> @@ -138,8 +130,7 @@ int qxl_device_init(struct qxl_device *qdev,
> qdev->vram_mapping = io_mapping_create_wc(qdev->vram_base, pci_resource_len(pdev, 0));
> if (!qdev->vram_mapping) {
> pr_err("Unable to create vram_mapping");
> - r = -ENOMEM;
> - goto error;
> + return -ENOMEM;
> }
>
> if (pci_resource_len(pdev, 4) > 0) {
> @@ -293,7 +284,6 @@ int qxl_device_init(struct qxl_device *qdev,
> io_mapping_free(qdev->surface_mapping);
> vram_mapping_free:
> io_mapping_free(qdev->vram_mapping);
> -error:
> return r;
> }
>
>
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Felix Imendörffer
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_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 02/44] drm: Add devm_drm_dev_alloc macro
2020-04-06 12:00 ` [Intel-gfx] " Laurent Pinchart
@ 2020-04-06 12:18 ` Daniel Vetter
-1 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-06 12:18 UTC (permalink / raw)
To: Laurent Pinchart
Cc: Paul Kocialkowski, Daniel Vetter, Intel Graphics Development,
DRI Development
On Mon, Apr 6, 2020 at 2:01 PM Laurent Pinchart
<laurent.pinchart@ideasonboard.com> wrote:
>
> Hi Daniel,
>
> Thank you for the patch.
>
> On Fri, Apr 03, 2020 at 03:57:46PM +0200, Daniel Vetter wrote:
> > The kerneldoc is only added for this new function. Existing kerneldoc
> > and examples will be udated at the very end, since once all drivers
> > are converted over to devm_drm_dev_alloc we can unexport a lot of
> > interim functions and make the documentation for driver authors a lot
> > cleaner and less confusing. There will be only one true way to
> > initialize a drm_device at the end of this, which is going to be
> > devm_drm_dev_alloc.
>
> How about drivers that expose another interface towards userspace ? If
> the other related subsystem also required allocation of the driver
> private structure through its corresponding API, we'd be stuck. As
> stated before, I want this API to be optional.
So maybe we need to import a little bit more of our epic irc
discussion here, because this is leaving out all the context. There's
a few more things:
- Since the merging of the previous patch series this is already
mandatory, because the kfree(drm_device.managed.final_kfree) is the
last thing that will run. So I already killed your use-case (and it
seems to work just fine for all the drivers in-tree, and we have a
lot).
- As part of doing all these patches here and in the previous series
and in a next one I've seen that drivers just get this wrong. I'm
extremely hesitant to give that rope back to drivers, so I really
don't want to merge anything until we're ready to merge a driver that
needs it. I've set myself a goal to fix up all 40 odd drivers still
using drm_dev_alloc(), and that's itself already pretty stupid idea.
It's definitely not going to work if new drivers keep adding bad usage
patterns.
- Now I'm not opposed to allowing this, if/when we actually need it. I
think a very clean long-term solution would be to have a struct
kref_res, which augments a kref with automatic resource cleanup. We'd
probably need to fully demidlayer that, i.e. if you supply your own
->release hook then it's your job to call kref_release_all() at the
right point in there. With that we could then do a devm_drm_dev_init()
again, which would take that kref_res structure and the drm_device,
both embedded somewhere in your overall driver struture, and use your
drivers kref_res to attach all drm related auto-cleanup. In that case
it would then also be that kref_res' responsibility to do the final
kfree, hence drm wouldn't insist on doing that either. Prototype would
be something like:
devm_drm_dev_init(struct device *dev, struct drm_device *drm,
struct drm_driver *driver, struct kref_res *kref);
The trouble with the above idea is that it assumes I have endless
amounts of time and that I can convince Greg KH that I understand
driver unload lifetime issues. The former is atm the more realistic
looking one of these two, so interim solution would be to add some
hack or another meanwhile to do this within drm only. Or as an
alternative solution, easy to convert over to an eventual kref_res
world:
#define kref_res_get() drm_dev_get()
#define kref_res_put() drm_dev_put()
With suitable amounts of casting to make this work out correctly like
the real kref_res solution.
Until we do have such drivers though I really don't want to open the
barn door again to all the bugs that'll bring, while I'm trying to get
the other barn doors closed down and fixed meanwhile.
-Daniel
>
> > Cc: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
> > Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
> > Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> > ---
> > drivers/gpu/drm/drm_drv.c | 23 +++++++++++++++++++++++
> > include/drm/drm_drv.h | 33 +++++++++++++++++++++++++++++++++
> > 2 files changed, 56 insertions(+)
> >
> > diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c
> > index 1bb4f636b83c..9e60b784b3ac 100644
> > --- a/drivers/gpu/drm/drm_drv.c
> > +++ b/drivers/gpu/drm/drm_drv.c
> > @@ -739,6 +739,29 @@ int devm_drm_dev_init(struct device *parent,
> > }
> > EXPORT_SYMBOL(devm_drm_dev_init);
> >
> > +void* __devm_drm_dev_alloc(struct device *parent, struct drm_driver *driver,
> > + size_t size, size_t offset)
> > +{
> > + void *container;
> > + struct drm_device *drm;
> > + int ret;
> > +
> > + container = kzalloc(size, GFP_KERNEL);
> > + if (!container)
> > + return ERR_PTR(-ENOMEM);
> > +
> > + drm = container + offset;
> > + ret = devm_drm_dev_init(parent, drm, driver);
> > + if (ret) {
> > + kfree(container);
> > + return ERR_PTR(ret);
> > + }
> > + drmm_add_final_kfree(drm, container);
> > +
> > + return container;
> > +}
> > +EXPORT_SYMBOL(__devm_drm_dev_alloc);
> > +
> > /**
> > * drm_dev_alloc - Allocate new DRM device
> > * @driver: DRM driver to allocate device for
> > diff --git a/include/drm/drm_drv.h b/include/drm/drm_drv.h
> > index e7c6ea261ed1..26776be5a21e 100644
> > --- a/include/drm/drm_drv.h
> > +++ b/include/drm/drm_drv.h
> > @@ -626,6 +626,39 @@ int devm_drm_dev_init(struct device *parent,
> > struct drm_device *dev,
> > struct drm_driver *driver);
> >
> > +void* __devm_drm_dev_alloc(struct device *parent, struct drm_driver *driver,
> > + size_t size, size_t offset);
> > +
> > +/**
> > + * devm_drm_dev_alloc - Resource managed allocation of a &drm_device instance
> > + * @parent: Parent device object
> > + * @driver: DRM driver
> > + * @type: the type of the struct which contains struct &drm_device
> > + * @member: the name of the &drm_device within @type.
> > + *
> > + * This allocates and initialize a new DRM device. No device registration is done.
> > + * Call drm_dev_register() to advertice the device to user space and register it
> > + * with other core subsystems. This should be done last in the device
> > + * initialization sequence to make sure userspace can't access an inconsistent
> > + * state.
> > + *
> > + * The initial ref-count of the object is 1. Use drm_dev_get() and
> > + * drm_dev_put() to take and drop further ref-counts.
> > + *
> > + * It is recommended that drivers embed &struct drm_device into their own device
> > + * structure.
> > + *
> > + * Note that this manages the lifetime of the resulting &drm_device
> > + * automatically using devres. The DRM device initialized with this function is
> > + * automatically put on driver detach using drm_dev_put().
> > + *
> > + * RETURNS:
> > + * Pointer to new DRM device, or ERR_PTR on failure.
> > + */
> > +#define devm_drm_dev_alloc(parent, driver, type, member) \
> > + ((type *) __devm_drm_dev_alloc(parent, driver, sizeof(type), \
> > + offsetof(type, member)))
> > +
> > struct drm_device *drm_dev_alloc(struct drm_driver *driver,
> > struct device *parent);
> > int drm_dev_register(struct drm_device *dev, unsigned long flags);
>
> --
> Regards,
>
> Laurent Pinchart
--
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [Intel-gfx] [PATCH 02/44] drm: Add devm_drm_dev_alloc macro
@ 2020-04-06 12:18 ` Daniel Vetter
0 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-06 12:18 UTC (permalink / raw)
To: Laurent Pinchart
Cc: Paul Kocialkowski, Daniel Vetter, Intel Graphics Development,
DRI Development
On Mon, Apr 6, 2020 at 2:01 PM Laurent Pinchart
<laurent.pinchart@ideasonboard.com> wrote:
>
> Hi Daniel,
>
> Thank you for the patch.
>
> On Fri, Apr 03, 2020 at 03:57:46PM +0200, Daniel Vetter wrote:
> > The kerneldoc is only added for this new function. Existing kerneldoc
> > and examples will be udated at the very end, since once all drivers
> > are converted over to devm_drm_dev_alloc we can unexport a lot of
> > interim functions and make the documentation for driver authors a lot
> > cleaner and less confusing. There will be only one true way to
> > initialize a drm_device at the end of this, which is going to be
> > devm_drm_dev_alloc.
>
> How about drivers that expose another interface towards userspace ? If
> the other related subsystem also required allocation of the driver
> private structure through its corresponding API, we'd be stuck. As
> stated before, I want this API to be optional.
So maybe we need to import a little bit more of our epic irc
discussion here, because this is leaving out all the context. There's
a few more things:
- Since the merging of the previous patch series this is already
mandatory, because the kfree(drm_device.managed.final_kfree) is the
last thing that will run. So I already killed your use-case (and it
seems to work just fine for all the drivers in-tree, and we have a
lot).
- As part of doing all these patches here and in the previous series
and in a next one I've seen that drivers just get this wrong. I'm
extremely hesitant to give that rope back to drivers, so I really
don't want to merge anything until we're ready to merge a driver that
needs it. I've set myself a goal to fix up all 40 odd drivers still
using drm_dev_alloc(), and that's itself already pretty stupid idea.
It's definitely not going to work if new drivers keep adding bad usage
patterns.
- Now I'm not opposed to allowing this, if/when we actually need it. I
think a very clean long-term solution would be to have a struct
kref_res, which augments a kref with automatic resource cleanup. We'd
probably need to fully demidlayer that, i.e. if you supply your own
->release hook then it's your job to call kref_release_all() at the
right point in there. With that we could then do a devm_drm_dev_init()
again, which would take that kref_res structure and the drm_device,
both embedded somewhere in your overall driver struture, and use your
drivers kref_res to attach all drm related auto-cleanup. In that case
it would then also be that kref_res' responsibility to do the final
kfree, hence drm wouldn't insist on doing that either. Prototype would
be something like:
devm_drm_dev_init(struct device *dev, struct drm_device *drm,
struct drm_driver *driver, struct kref_res *kref);
The trouble with the above idea is that it assumes I have endless
amounts of time and that I can convince Greg KH that I understand
driver unload lifetime issues. The former is atm the more realistic
looking one of these two, so interim solution would be to add some
hack or another meanwhile to do this within drm only. Or as an
alternative solution, easy to convert over to an eventual kref_res
world:
#define kref_res_get() drm_dev_get()
#define kref_res_put() drm_dev_put()
With suitable amounts of casting to make this work out correctly like
the real kref_res solution.
Until we do have such drivers though I really don't want to open the
barn door again to all the bugs that'll bring, while I'm trying to get
the other barn doors closed down and fixed meanwhile.
-Daniel
>
> > Cc: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
> > Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
> > Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> > ---
> > drivers/gpu/drm/drm_drv.c | 23 +++++++++++++++++++++++
> > include/drm/drm_drv.h | 33 +++++++++++++++++++++++++++++++++
> > 2 files changed, 56 insertions(+)
> >
> > diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c
> > index 1bb4f636b83c..9e60b784b3ac 100644
> > --- a/drivers/gpu/drm/drm_drv.c
> > +++ b/drivers/gpu/drm/drm_drv.c
> > @@ -739,6 +739,29 @@ int devm_drm_dev_init(struct device *parent,
> > }
> > EXPORT_SYMBOL(devm_drm_dev_init);
> >
> > +void* __devm_drm_dev_alloc(struct device *parent, struct drm_driver *driver,
> > + size_t size, size_t offset)
> > +{
> > + void *container;
> > + struct drm_device *drm;
> > + int ret;
> > +
> > + container = kzalloc(size, GFP_KERNEL);
> > + if (!container)
> > + return ERR_PTR(-ENOMEM);
> > +
> > + drm = container + offset;
> > + ret = devm_drm_dev_init(parent, drm, driver);
> > + if (ret) {
> > + kfree(container);
> > + return ERR_PTR(ret);
> > + }
> > + drmm_add_final_kfree(drm, container);
> > +
> > + return container;
> > +}
> > +EXPORT_SYMBOL(__devm_drm_dev_alloc);
> > +
> > /**
> > * drm_dev_alloc - Allocate new DRM device
> > * @driver: DRM driver to allocate device for
> > diff --git a/include/drm/drm_drv.h b/include/drm/drm_drv.h
> > index e7c6ea261ed1..26776be5a21e 100644
> > --- a/include/drm/drm_drv.h
> > +++ b/include/drm/drm_drv.h
> > @@ -626,6 +626,39 @@ int devm_drm_dev_init(struct device *parent,
> > struct drm_device *dev,
> > struct drm_driver *driver);
> >
> > +void* __devm_drm_dev_alloc(struct device *parent, struct drm_driver *driver,
> > + size_t size, size_t offset);
> > +
> > +/**
> > + * devm_drm_dev_alloc - Resource managed allocation of a &drm_device instance
> > + * @parent: Parent device object
> > + * @driver: DRM driver
> > + * @type: the type of the struct which contains struct &drm_device
> > + * @member: the name of the &drm_device within @type.
> > + *
> > + * This allocates and initialize a new DRM device. No device registration is done.
> > + * Call drm_dev_register() to advertice the device to user space and register it
> > + * with other core subsystems. This should be done last in the device
> > + * initialization sequence to make sure userspace can't access an inconsistent
> > + * state.
> > + *
> > + * The initial ref-count of the object is 1. Use drm_dev_get() and
> > + * drm_dev_put() to take and drop further ref-counts.
> > + *
> > + * It is recommended that drivers embed &struct drm_device into their own device
> > + * structure.
> > + *
> > + * Note that this manages the lifetime of the resulting &drm_device
> > + * automatically using devres. The DRM device initialized with this function is
> > + * automatically put on driver detach using drm_dev_put().
> > + *
> > + * RETURNS:
> > + * Pointer to new DRM device, or ERR_PTR on failure.
> > + */
> > +#define devm_drm_dev_alloc(parent, driver, type, member) \
> > + ((type *) __devm_drm_dev_alloc(parent, driver, sizeof(type), \
> > + offsetof(type, member)))
> > +
> > struct drm_device *drm_dev_alloc(struct drm_driver *driver,
> > struct device *parent);
> > int drm_dev_register(struct drm_device *dev, unsigned long flags);
>
> --
> Regards,
>
> Laurent Pinchart
--
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 01/44] drivers/base: Always release devres on device_del
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-06 12:32 ` Daniel Vetter
-1 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-06 12:32 UTC (permalink / raw)
To: DRI Development
Cc: Daniel Vetter, Intel Graphics Development, Rafael J. Wysocki,
Greg Kroah-Hartman
On Fri, Apr 3, 2020 at 3:58 PM Daniel Vetter <daniel.vetter@ffwll.ch> wrote:
>
> In drm we've added nice drm_device (the main gpu driver thing, which
> also represents the userspace interfaces and has everything else
> dangling off it) init functions using devres, devm_drm_dev_init and
> soon devm_drm_dev_alloc (this patch series adds that).
>
> A slight trouble is that drm_device itself holds a reference on the
> struct device it's sitting on top (for sysfs links and dmesg debug and
> lots of other things), so there's a reference loop. For real drivers
> this is broken at remove/unplug time, where all devres resources are
> released device_release_driver(), before the final device reference is
> dropped. So far so good.
>
> There's 2 exceptions:
> - drm/vkms|vgem: Virtual drivers for which we create a fake/virtual
> platform device to make them look more like normal devices to
> userspace. These aren't drivers in the driver model sense, we simple
> create a platform_device and register it.
>
> - drm/i915/selftests, where we create minimal mock devices, and again
> the selftests aren't proper drivers in the driver model sense.
>
> For these two cases the reference loop isn't broken, because devres is
> only cleaned up when the last device reference is dropped. But that's
> not happening, because the drm_device holds that last struct device
> reference.
>
> Thus far this wasn't a problem since the above cases simply
> hand-rolled their cleanup code. But I want to convert all drivers over
> to the devm_ versions, hence it would be really nice if these
> virtual/fake/mock uses-cases could also be managed with devres
> cleanup.
>
> I see three possible approaches:
Restarting this at the top level, because the discussion thus far just
ended in a long "you're doing it wrong", despite that I think we're
doing what v4l is doing (plus/minus that we can't do an exact matching
handling in drm because our uapi has a lot more warts, which we can't
change because no breaking userspace).
So which one of the three below is the right approach?
Aside, looking at the v4l solution I think there's also a confusion
about struct device representing a char device (which v4l directly
uses as its userspace interface refcounted thing, and which drm does
_not_ directly). And a struct device embedded into something like
platform_device or a virtual device, where a driver can bind to. My
question here is about the former, I don't care how cdev struct device
are cleaned up one bit. Now if other subsystems relies on the devres
cleanup behaviour we currently have because of such cdev usage, then
yeah first approach doesn't work (and I have a big surprised that use
case, but hey would actually learn something).
End of aside, since again I want to figure out which of the tree
approaches it the right one. Not about how wrong one of them is,
ignoring the other three I laid out. And maybe there's even more
options for this.
-Daniel
> - Clean up devres from device_del (or platform_device_unregister) even
> when no driver is bound. This seems like the simplest solution, but
> also the one with the widest impact, and what this patch implements.
> We might want to include more of the cleanup than just
> devres_release_all, but this is all I need to get my use case going.
>
> - Create a devres group and release that when we unbind. The code in
> virtual drivers gets a bit ugly, since every error case has a
> different cleanup code until we've chained everything
> (platform_device, devres group and then drm_device) together and a
> devres_release_group takes care of everything. Doable, but a bit
> confusing when I typed it out.
>
> - Convert the virtual drivers to real (in the device model sense)
> drivers. Feels like too much boilerplate for not much gain. And
> especially with the mock objects minimal mocking is kinda the goal,
> to limit the amount of accidentally pulled in code into our unit
> tests as much as possible.
>
> Either way I think time to discuss this a bit and figure out what's
> the recommended approach here.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
> Cc: "Rafael J. Wysocki" <rafael@kernel.org>
> ---
> drivers/base/dd.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/drivers/base/dd.c b/drivers/base/dd.c
> index b25bcab2a26b..1bcfb0ff5f44 100644
> --- a/drivers/base/dd.c
> +++ b/drivers/base/dd.c
> @@ -1155,6 +1155,8 @@ static void __device_release_driver(struct device *dev, struct device *parent)
> dev);
>
> kobject_uevent(&dev->kobj, KOBJ_UNBIND);
> + } else {
> + devres_release_all(dev);
> }
> }
>
> --
> 2.25.1
>
--
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [Intel-gfx] [PATCH 01/44] drivers/base: Always release devres on device_del
@ 2020-04-06 12:32 ` Daniel Vetter
0 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-06 12:32 UTC (permalink / raw)
To: DRI Development
Cc: Daniel Vetter, Intel Graphics Development, Rafael J. Wysocki,
Greg Kroah-Hartman
On Fri, Apr 3, 2020 at 3:58 PM Daniel Vetter <daniel.vetter@ffwll.ch> wrote:
>
> In drm we've added nice drm_device (the main gpu driver thing, which
> also represents the userspace interfaces and has everything else
> dangling off it) init functions using devres, devm_drm_dev_init and
> soon devm_drm_dev_alloc (this patch series adds that).
>
> A slight trouble is that drm_device itself holds a reference on the
> struct device it's sitting on top (for sysfs links and dmesg debug and
> lots of other things), so there's a reference loop. For real drivers
> this is broken at remove/unplug time, where all devres resources are
> released device_release_driver(), before the final device reference is
> dropped. So far so good.
>
> There's 2 exceptions:
> - drm/vkms|vgem: Virtual drivers for which we create a fake/virtual
> platform device to make them look more like normal devices to
> userspace. These aren't drivers in the driver model sense, we simple
> create a platform_device and register it.
>
> - drm/i915/selftests, where we create minimal mock devices, and again
> the selftests aren't proper drivers in the driver model sense.
>
> For these two cases the reference loop isn't broken, because devres is
> only cleaned up when the last device reference is dropped. But that's
> not happening, because the drm_device holds that last struct device
> reference.
>
> Thus far this wasn't a problem since the above cases simply
> hand-rolled their cleanup code. But I want to convert all drivers over
> to the devm_ versions, hence it would be really nice if these
> virtual/fake/mock uses-cases could also be managed with devres
> cleanup.
>
> I see three possible approaches:
Restarting this at the top level, because the discussion thus far just
ended in a long "you're doing it wrong", despite that I think we're
doing what v4l is doing (plus/minus that we can't do an exact matching
handling in drm because our uapi has a lot more warts, which we can't
change because no breaking userspace).
So which one of the three below is the right approach?
Aside, looking at the v4l solution I think there's also a confusion
about struct device representing a char device (which v4l directly
uses as its userspace interface refcounted thing, and which drm does
_not_ directly). And a struct device embedded into something like
platform_device or a virtual device, where a driver can bind to. My
question here is about the former, I don't care how cdev struct device
are cleaned up one bit. Now if other subsystems relies on the devres
cleanup behaviour we currently have because of such cdev usage, then
yeah first approach doesn't work (and I have a big surprised that use
case, but hey would actually learn something).
End of aside, since again I want to figure out which of the tree
approaches it the right one. Not about how wrong one of them is,
ignoring the other three I laid out. And maybe there's even more
options for this.
-Daniel
> - Clean up devres from device_del (or platform_device_unregister) even
> when no driver is bound. This seems like the simplest solution, but
> also the one with the widest impact, and what this patch implements.
> We might want to include more of the cleanup than just
> devres_release_all, but this is all I need to get my use case going.
>
> - Create a devres group and release that when we unbind. The code in
> virtual drivers gets a bit ugly, since every error case has a
> different cleanup code until we've chained everything
> (platform_device, devres group and then drm_device) together and a
> devres_release_group takes care of everything. Doable, but a bit
> confusing when I typed it out.
>
> - Convert the virtual drivers to real (in the device model sense)
> drivers. Feels like too much boilerplate for not much gain. And
> especially with the mock objects minimal mocking is kinda the goal,
> to limit the amount of accidentally pulled in code into our unit
> tests as much as possible.
>
> Either way I think time to discuss this a bit and figure out what's
> the recommended approach here.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
> Cc: "Rafael J. Wysocki" <rafael@kernel.org>
> ---
> drivers/base/dd.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/drivers/base/dd.c b/drivers/base/dd.c
> index b25bcab2a26b..1bcfb0ff5f44 100644
> --- a/drivers/base/dd.c
> +++ b/drivers/base/dd.c
> @@ -1155,6 +1155,8 @@ static void __device_release_driver(struct device *dev, struct device *parent)
> dev);
>
> kobject_uevent(&dev->kobj, KOBJ_UNBIND);
> + } else {
> + devres_release_all(dev);
> }
> }
>
> --
> 2.25.1
>
--
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 01/44] drivers/base: Always release devres on device_del
2020-04-06 12:32 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-06 13:38 ` Greg Kroah-Hartman
-1 siblings, 0 replies; 262+ messages in thread
From: Greg Kroah-Hartman @ 2020-04-06 13:38 UTC (permalink / raw)
To: Daniel Vetter
Cc: Daniel Vetter, Intel Graphics Development, DRI Development,
Rafael J. Wysocki
On Mon, Apr 06, 2020 at 02:32:51PM +0200, Daniel Vetter wrote:
> On Fri, Apr 3, 2020 at 3:58 PM Daniel Vetter <daniel.vetter@ffwll.ch> wrote:
> >
> > In drm we've added nice drm_device (the main gpu driver thing, which
> > also represents the userspace interfaces and has everything else
> > dangling off it) init functions using devres, devm_drm_dev_init and
> > soon devm_drm_dev_alloc (this patch series adds that).
> >
> > A slight trouble is that drm_device itself holds a reference on the
> > struct device it's sitting on top (for sysfs links and dmesg debug and
> > lots of other things), so there's a reference loop. For real drivers
> > this is broken at remove/unplug time, where all devres resources are
> > released device_release_driver(), before the final device reference is
> > dropped. So far so good.
> >
> > There's 2 exceptions:
> > - drm/vkms|vgem: Virtual drivers for which we create a fake/virtual
> > platform device to make them look more like normal devices to
> > userspace. These aren't drivers in the driver model sense, we simple
> > create a platform_device and register it.
> >
> > - drm/i915/selftests, where we create minimal mock devices, and again
> > the selftests aren't proper drivers in the driver model sense.
> >
> > For these two cases the reference loop isn't broken, because devres is
> > only cleaned up when the last device reference is dropped. But that's
> > not happening, because the drm_device holds that last struct device
> > reference.
> >
> > Thus far this wasn't a problem since the above cases simply
> > hand-rolled their cleanup code. But I want to convert all drivers over
> > to the devm_ versions, hence it would be really nice if these
> > virtual/fake/mock uses-cases could also be managed with devres
> > cleanup.
> >
> > I see three possible approaches:
>
> Restarting this at the top level, because the discussion thus far just
> ended in a long "you're doing it wrong", despite that I think we're
> doing what v4l is doing (plus/minus that we can't do an exact matching
> handling in drm because our uapi has a lot more warts, which we can't
> change because no breaking userspace).
>
> So which one of the three below is the right approach?
>
> Aside, looking at the v4l solution I think there's also a confusion
> about struct device representing a char device (which v4l directly
> uses as its userspace interface refcounted thing, and which drm does
> _not_ directly). And a struct device embedded into something like
> platform_device or a virtual device, where a driver can bind to. My
> question here is about the former, I don't care how cdev struct device
> are cleaned up one bit. Now if other subsystems relies on the devres
> cleanup behaviour we currently have because of such cdev usage, then
> yeah first approach doesn't work (and I have a big surprised that use
> case, but hey would actually learn something).
>
> End of aside, since again I want to figure out which of the tree
> approaches it the right one. Not about how wrong one of them is,
> ignoring the other three I laid out. And maybe there's even more
> options for this.
Sorry, been swamped with other things, give me a few days to get back to
this, I need to dig into how you all are dealing with the virtual
drivers.
Doing this in the middle of the merge window is a bit rough :)
thanks,
greg k-h
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [Intel-gfx] [PATCH 01/44] drivers/base: Always release devres on device_del
@ 2020-04-06 13:38 ` Greg Kroah-Hartman
0 siblings, 0 replies; 262+ messages in thread
From: Greg Kroah-Hartman @ 2020-04-06 13:38 UTC (permalink / raw)
To: Daniel Vetter
Cc: Daniel Vetter, Intel Graphics Development, DRI Development,
Rafael J. Wysocki
On Mon, Apr 06, 2020 at 02:32:51PM +0200, Daniel Vetter wrote:
> On Fri, Apr 3, 2020 at 3:58 PM Daniel Vetter <daniel.vetter@ffwll.ch> wrote:
> >
> > In drm we've added nice drm_device (the main gpu driver thing, which
> > also represents the userspace interfaces and has everything else
> > dangling off it) init functions using devres, devm_drm_dev_init and
> > soon devm_drm_dev_alloc (this patch series adds that).
> >
> > A slight trouble is that drm_device itself holds a reference on the
> > struct device it's sitting on top (for sysfs links and dmesg debug and
> > lots of other things), so there's a reference loop. For real drivers
> > this is broken at remove/unplug time, where all devres resources are
> > released device_release_driver(), before the final device reference is
> > dropped. So far so good.
> >
> > There's 2 exceptions:
> > - drm/vkms|vgem: Virtual drivers for which we create a fake/virtual
> > platform device to make them look more like normal devices to
> > userspace. These aren't drivers in the driver model sense, we simple
> > create a platform_device and register it.
> >
> > - drm/i915/selftests, where we create minimal mock devices, and again
> > the selftests aren't proper drivers in the driver model sense.
> >
> > For these two cases the reference loop isn't broken, because devres is
> > only cleaned up when the last device reference is dropped. But that's
> > not happening, because the drm_device holds that last struct device
> > reference.
> >
> > Thus far this wasn't a problem since the above cases simply
> > hand-rolled their cleanup code. But I want to convert all drivers over
> > to the devm_ versions, hence it would be really nice if these
> > virtual/fake/mock uses-cases could also be managed with devres
> > cleanup.
> >
> > I see three possible approaches:
>
> Restarting this at the top level, because the discussion thus far just
> ended in a long "you're doing it wrong", despite that I think we're
> doing what v4l is doing (plus/minus that we can't do an exact matching
> handling in drm because our uapi has a lot more warts, which we can't
> change because no breaking userspace).
>
> So which one of the three below is the right approach?
>
> Aside, looking at the v4l solution I think there's also a confusion
> about struct device representing a char device (which v4l directly
> uses as its userspace interface refcounted thing, and which drm does
> _not_ directly). And a struct device embedded into something like
> platform_device or a virtual device, where a driver can bind to. My
> question here is about the former, I don't care how cdev struct device
> are cleaned up one bit. Now if other subsystems relies on the devres
> cleanup behaviour we currently have because of such cdev usage, then
> yeah first approach doesn't work (and I have a big surprised that use
> case, but hey would actually learn something).
>
> End of aside, since again I want to figure out which of the tree
> approaches it the right one. Not about how wrong one of them is,
> ignoring the other three I laid out. And maybe there's even more
> options for this.
Sorry, been swamped with other things, give me a few days to get back to
this, I need to dig into how you all are dealing with the virtual
drivers.
Doing this in the middle of the merge window is a bit rough :)
thanks,
greg k-h
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 01/44] drivers/base: Always release devres on device_del
2020-04-06 13:38 ` [Intel-gfx] " Greg Kroah-Hartman
@ 2020-04-06 13:55 ` Daniel Vetter
-1 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-06 13:55 UTC (permalink / raw)
To: Greg Kroah-Hartman
Cc: Daniel Vetter, Intel Graphics Development, DRI Development,
Rafael J. Wysocki
On Mon, Apr 6, 2020 at 3:38 PM Greg Kroah-Hartman
<gregkh@linuxfoundation.org> wrote:
>
> On Mon, Apr 06, 2020 at 02:32:51PM +0200, Daniel Vetter wrote:
> > On Fri, Apr 3, 2020 at 3:58 PM Daniel Vetter <daniel.vetter@ffwll.ch> wrote:
> > >
> > > In drm we've added nice drm_device (the main gpu driver thing, which
> > > also represents the userspace interfaces and has everything else
> > > dangling off it) init functions using devres, devm_drm_dev_init and
> > > soon devm_drm_dev_alloc (this patch series adds that).
> > >
> > > A slight trouble is that drm_device itself holds a reference on the
> > > struct device it's sitting on top (for sysfs links and dmesg debug and
> > > lots of other things), so there's a reference loop. For real drivers
> > > this is broken at remove/unplug time, where all devres resources are
> > > released device_release_driver(), before the final device reference is
> > > dropped. So far so good.
> > >
> > > There's 2 exceptions:
> > > - drm/vkms|vgem: Virtual drivers for which we create a fake/virtual
> > > platform device to make them look more like normal devices to
> > > userspace. These aren't drivers in the driver model sense, we simple
> > > create a platform_device and register it.
> > >
> > > - drm/i915/selftests, where we create minimal mock devices, and again
> > > the selftests aren't proper drivers in the driver model sense.
> > >
> > > For these two cases the reference loop isn't broken, because devres is
> > > only cleaned up when the last device reference is dropped. But that's
> > > not happening, because the drm_device holds that last struct device
> > > reference.
> > >
> > > Thus far this wasn't a problem since the above cases simply
> > > hand-rolled their cleanup code. But I want to convert all drivers over
> > > to the devm_ versions, hence it would be really nice if these
> > > virtual/fake/mock uses-cases could also be managed with devres
> > > cleanup.
> > >
> > > I see three possible approaches:
> >
> > Restarting this at the top level, because the discussion thus far just
> > ended in a long "you're doing it wrong", despite that I think we're
> > doing what v4l is doing (plus/minus that we can't do an exact matching
> > handling in drm because our uapi has a lot more warts, which we can't
> > change because no breaking userspace).
> >
> > So which one of the three below is the right approach?
> >
> > Aside, looking at the v4l solution I think there's also a confusion
> > about struct device representing a char device (which v4l directly
> > uses as its userspace interface refcounted thing, and which drm does
> > _not_ directly). And a struct device embedded into something like
> > platform_device or a virtual device, where a driver can bind to. My
> > question here is about the former, I don't care how cdev struct device
> > are cleaned up one bit. Now if other subsystems relies on the devres
> > cleanup behaviour we currently have because of such cdev usage, then
> > yeah first approach doesn't work (and I have a big surprised that use
> > case, but hey would actually learn something).
> >
> > End of aside, since again I want to figure out which of the tree
> > approaches it the right one. Not about how wrong one of them is,
> > ignoring the other three I laid out. And maybe there's even more
> > options for this.
>
> Sorry, been swamped with other things, give me a few days to get back to
> this, I need to dig into how you all are dealing with the virtual
> drivers.
Sure, no problem.
> Doing this in the middle of the merge window is a bit rough :)
Ah I always forget ... we freeze drm at -rc6, so merge window is
actually my most relaxed time since everyone is busy and no one has
time to report drm bugs :-)
Thanks, Daniel
--
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [Intel-gfx] [PATCH 01/44] drivers/base: Always release devres on device_del
@ 2020-04-06 13:55 ` Daniel Vetter
0 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-06 13:55 UTC (permalink / raw)
To: Greg Kroah-Hartman
Cc: Daniel Vetter, Intel Graphics Development, DRI Development,
Rafael J. Wysocki
On Mon, Apr 6, 2020 at 3:38 PM Greg Kroah-Hartman
<gregkh@linuxfoundation.org> wrote:
>
> On Mon, Apr 06, 2020 at 02:32:51PM +0200, Daniel Vetter wrote:
> > On Fri, Apr 3, 2020 at 3:58 PM Daniel Vetter <daniel.vetter@ffwll.ch> wrote:
> > >
> > > In drm we've added nice drm_device (the main gpu driver thing, which
> > > also represents the userspace interfaces and has everything else
> > > dangling off it) init functions using devres, devm_drm_dev_init and
> > > soon devm_drm_dev_alloc (this patch series adds that).
> > >
> > > A slight trouble is that drm_device itself holds a reference on the
> > > struct device it's sitting on top (for sysfs links and dmesg debug and
> > > lots of other things), so there's a reference loop. For real drivers
> > > this is broken at remove/unplug time, where all devres resources are
> > > released device_release_driver(), before the final device reference is
> > > dropped. So far so good.
> > >
> > > There's 2 exceptions:
> > > - drm/vkms|vgem: Virtual drivers for which we create a fake/virtual
> > > platform device to make them look more like normal devices to
> > > userspace. These aren't drivers in the driver model sense, we simple
> > > create a platform_device and register it.
> > >
> > > - drm/i915/selftests, where we create minimal mock devices, and again
> > > the selftests aren't proper drivers in the driver model sense.
> > >
> > > For these two cases the reference loop isn't broken, because devres is
> > > only cleaned up when the last device reference is dropped. But that's
> > > not happening, because the drm_device holds that last struct device
> > > reference.
> > >
> > > Thus far this wasn't a problem since the above cases simply
> > > hand-rolled their cleanup code. But I want to convert all drivers over
> > > to the devm_ versions, hence it would be really nice if these
> > > virtual/fake/mock uses-cases could also be managed with devres
> > > cleanup.
> > >
> > > I see three possible approaches:
> >
> > Restarting this at the top level, because the discussion thus far just
> > ended in a long "you're doing it wrong", despite that I think we're
> > doing what v4l is doing (plus/minus that we can't do an exact matching
> > handling in drm because our uapi has a lot more warts, which we can't
> > change because no breaking userspace).
> >
> > So which one of the three below is the right approach?
> >
> > Aside, looking at the v4l solution I think there's also a confusion
> > about struct device representing a char device (which v4l directly
> > uses as its userspace interface refcounted thing, and which drm does
> > _not_ directly). And a struct device embedded into something like
> > platform_device or a virtual device, where a driver can bind to. My
> > question here is about the former, I don't care how cdev struct device
> > are cleaned up one bit. Now if other subsystems relies on the devres
> > cleanup behaviour we currently have because of such cdev usage, then
> > yeah first approach doesn't work (and I have a big surprised that use
> > case, but hey would actually learn something).
> >
> > End of aside, since again I want to figure out which of the tree
> > approaches it the right one. Not about how wrong one of them is,
> > ignoring the other three I laid out. And maybe there's even more
> > options for this.
>
> Sorry, been swamped with other things, give me a few days to get back to
> this, I need to dig into how you all are dealing with the virtual
> drivers.
Sure, no problem.
> Doing this in the middle of the merge window is a bit rough :)
Ah I always forget ... we freeze drm at -rc6, so merge window is
actually my most relaxed time since everyone is busy and no one has
time to report drm bugs :-)
Thanks, Daniel
--
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 30/44] drm/qxl: Use devm_drm_dev_alloc
2020-04-06 12:11 ` Thomas Zimmermann
(?)
@ 2020-04-07 7:19 ` Daniel Vetter
-1 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-07 7:19 UTC (permalink / raw)
To: Thomas Zimmermann
Cc: Dave Airlie, Intel Graphics Development, DRI Development,
open list:VIRTIO CORE, NET...,
Gerd Hoffmann, open list:DRM DRIVER FOR QXL VIRTUAL GPU,
Daniel Vetter
On Mon, Apr 6, 2020 at 7:29 PM Thomas Zimmermann <tzimmermann@suse.de> wrote:
>
>
>
> Am 03.04.20 um 15:58 schrieb Daniel Vetter:
> > Also need to remove the drm_dev_put from the remove hook.
> >
> > Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> > Cc: Dave Airlie <airlied@redhat.com>
> > Cc: Gerd Hoffmann <kraxel@redhat.com>
> > Cc: virtualization@lists.linux-foundation.org
> > Cc: spice-devel@lists.freedesktop.org
> > ---
> > drivers/gpu/drm/qxl/qxl_drv.c | 15 ++++++++-------
> > drivers/gpu/drm/qxl/qxl_drv.h | 3 +--
> > drivers/gpu/drm/qxl/qxl_kms.c | 12 +-----------
> > 3 files changed, 10 insertions(+), 20 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/qxl/qxl_drv.c b/drivers/gpu/drm/qxl/qxl_drv.c
> > index 09102e2efabc..6b4ae4c5fb76 100644
> > --- a/drivers/gpu/drm/qxl/qxl_drv.c
> > +++ b/drivers/gpu/drm/qxl/qxl_drv.c
> > @@ -81,13 +81,16 @@ qxl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
> > return -EINVAL; /* TODO: ENODEV ? */
> > }
> >
> > - qdev = kzalloc(sizeof(struct qxl_device), GFP_KERNEL);
> > - if (!qdev)
> > + qdev = devm_drm_dev_alloc(&pdev->dev, &qxl_driver,
> > + struct qxl_device, ddev);
> > + if (IS_ERR(qdev)) {
> > + pr_err("Unable to init drm dev");
> > return -ENOMEM;
> > + }
>
> My feeling is that it is too early to allocate. Wouldn't it be better to
> first do the pdev and conflicting-fb stuff and allocate right before
> qxl_device_init() ?
It doesn't matter. I can reorder, or I can also not reorder, it'll
have 0 effects on cleanup (all done automatically) or correctness
(it's just a memory allocation, it doesn't do anything).
-Daniel
> Best regards
> Thomas
>
> >
> > ret = pci_enable_device(pdev);
> > if (ret)
> > - goto free_dev;
> > + return ret;
> >
> > ret = drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, "qxl");
> > if (ret)
> > @@ -101,7 +104,7 @@ qxl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
> > }
> > }
> >
> > - ret = qxl_device_init(qdev, &qxl_driver, pdev);
> > + ret = qxl_device_init(qdev, pdev);
> > if (ret)
> > goto put_vga;
> >
> > @@ -128,8 +131,7 @@ qxl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
> > vga_put(pdev, VGA_RSRC_LEGACY_IO);
> > disable_pci:
> > pci_disable_device(pdev);
> > -free_dev:
> > - kfree(qdev);
> > +
> > return ret;
> > }
> >
> > @@ -155,7 +157,6 @@ qxl_pci_remove(struct pci_dev *pdev)
> > drm_atomic_helper_shutdown(dev);
> > if (is_vga(pdev))
> > vga_put(pdev, VGA_RSRC_LEGACY_IO);
> > - drm_dev_put(dev);
> > }
> >
> > DEFINE_DRM_GEM_FOPS(qxl_fops);
> > diff --git a/drivers/gpu/drm/qxl/qxl_drv.h b/drivers/gpu/drm/qxl/qxl_drv.h
> > index 435126facc9b..86ac191d9205 100644
> > --- a/drivers/gpu/drm/qxl/qxl_drv.h
> > +++ b/drivers/gpu/drm/qxl/qxl_drv.h
> > @@ -276,8 +276,7 @@ struct qxl_device {
> > extern const struct drm_ioctl_desc qxl_ioctls[];
> > extern int qxl_max_ioctl;
> >
> > -int qxl_device_init(struct qxl_device *qdev, struct drm_driver *drv,
> > - struct pci_dev *pdev);
> > +int qxl_device_init(struct qxl_device *qdev, struct pci_dev *pdev);
> > void qxl_device_fini(struct qxl_device *qdev);
> >
> > int qxl_modeset_init(struct qxl_device *qdev);
> > diff --git a/drivers/gpu/drm/qxl/qxl_kms.c b/drivers/gpu/drm/qxl/qxl_kms.c
> > index 9eed1a375f24..91a34dd835d7 100644
> > --- a/drivers/gpu/drm/qxl/qxl_kms.c
> > +++ b/drivers/gpu/drm/qxl/qxl_kms.c
> > @@ -108,21 +108,13 @@ static void qxl_gc_work(struct work_struct *work)
> > }
> >
> > int qxl_device_init(struct qxl_device *qdev,
> > - struct drm_driver *drv,
> > struct pci_dev *pdev)
> > {
> > int r, sb;
> >
> > - r = drm_dev_init(&qdev->ddev, drv, &pdev->dev);
> > - if (r) {
> > - pr_err("Unable to init drm dev");
> > - goto error;
> > - }
> > -
> > qdev->ddev.pdev = pdev;
> > pci_set_drvdata(pdev, &qdev->ddev);
> > qdev->ddev.dev_private = qdev;
> > - drmm_add_final_kfree(&qdev->ddev, qdev);
> >
> > mutex_init(&qdev->gem.mutex);
> > mutex_init(&qdev->update_area_mutex);
> > @@ -138,8 +130,7 @@ int qxl_device_init(struct qxl_device *qdev,
> > qdev->vram_mapping = io_mapping_create_wc(qdev->vram_base, pci_resource_len(pdev, 0));
> > if (!qdev->vram_mapping) {
> > pr_err("Unable to create vram_mapping");
> > - r = -ENOMEM;
> > - goto error;
> > + return -ENOMEM;
> > }
> >
> > if (pci_resource_len(pdev, 4) > 0) {
> > @@ -293,7 +284,6 @@ int qxl_device_init(struct qxl_device *qdev,
> > io_mapping_free(qdev->surface_mapping);
> > vram_mapping_free:
> > io_mapping_free(qdev->vram_mapping);
> > -error:
> > return r;
> > }
> >
> >
>
> --
> Thomas Zimmermann
> Graphics Driver Developer
> SUSE Software Solutions Germany GmbH
> Maxfeldstr. 5, 90409 Nürnberg, Germany
> (HRB 36809, AG Nürnberg)
> Geschäftsführer: Felix Imendörffer
>
--
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch
_______________________________________________
Spice-devel mailing list
Spice-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/spice-devel
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 30/44] drm/qxl: Use devm_drm_dev_alloc
@ 2020-04-07 7:19 ` Daniel Vetter
0 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-07 7:19 UTC (permalink / raw)
To: Thomas Zimmermann
Cc: Dave Airlie, Intel Graphics Development, DRI Development,
open list:VIRTIO CORE, NET...,
Gerd Hoffmann, open list:DRM DRIVER FOR QXL VIRTUAL GPU,
Daniel Vetter
On Mon, Apr 6, 2020 at 7:29 PM Thomas Zimmermann <tzimmermann@suse.de> wrote:
>
>
>
> Am 03.04.20 um 15:58 schrieb Daniel Vetter:
> > Also need to remove the drm_dev_put from the remove hook.
> >
> > Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> > Cc: Dave Airlie <airlied@redhat.com>
> > Cc: Gerd Hoffmann <kraxel@redhat.com>
> > Cc: virtualization@lists.linux-foundation.org
> > Cc: spice-devel@lists.freedesktop.org
> > ---
> > drivers/gpu/drm/qxl/qxl_drv.c | 15 ++++++++-------
> > drivers/gpu/drm/qxl/qxl_drv.h | 3 +--
> > drivers/gpu/drm/qxl/qxl_kms.c | 12 +-----------
> > 3 files changed, 10 insertions(+), 20 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/qxl/qxl_drv.c b/drivers/gpu/drm/qxl/qxl_drv.c
> > index 09102e2efabc..6b4ae4c5fb76 100644
> > --- a/drivers/gpu/drm/qxl/qxl_drv.c
> > +++ b/drivers/gpu/drm/qxl/qxl_drv.c
> > @@ -81,13 +81,16 @@ qxl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
> > return -EINVAL; /* TODO: ENODEV ? */
> > }
> >
> > - qdev = kzalloc(sizeof(struct qxl_device), GFP_KERNEL);
> > - if (!qdev)
> > + qdev = devm_drm_dev_alloc(&pdev->dev, &qxl_driver,
> > + struct qxl_device, ddev);
> > + if (IS_ERR(qdev)) {
> > + pr_err("Unable to init drm dev");
> > return -ENOMEM;
> > + }
>
> My feeling is that it is too early to allocate. Wouldn't it be better to
> first do the pdev and conflicting-fb stuff and allocate right before
> qxl_device_init() ?
It doesn't matter. I can reorder, or I can also not reorder, it'll
have 0 effects on cleanup (all done automatically) or correctness
(it's just a memory allocation, it doesn't do anything).
-Daniel
> Best regards
> Thomas
>
> >
> > ret = pci_enable_device(pdev);
> > if (ret)
> > - goto free_dev;
> > + return ret;
> >
> > ret = drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, "qxl");
> > if (ret)
> > @@ -101,7 +104,7 @@ qxl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
> > }
> > }
> >
> > - ret = qxl_device_init(qdev, &qxl_driver, pdev);
> > + ret = qxl_device_init(qdev, pdev);
> > if (ret)
> > goto put_vga;
> >
> > @@ -128,8 +131,7 @@ qxl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
> > vga_put(pdev, VGA_RSRC_LEGACY_IO);
> > disable_pci:
> > pci_disable_device(pdev);
> > -free_dev:
> > - kfree(qdev);
> > +
> > return ret;
> > }
> >
> > @@ -155,7 +157,6 @@ qxl_pci_remove(struct pci_dev *pdev)
> > drm_atomic_helper_shutdown(dev);
> > if (is_vga(pdev))
> > vga_put(pdev, VGA_RSRC_LEGACY_IO);
> > - drm_dev_put(dev);
> > }
> >
> > DEFINE_DRM_GEM_FOPS(qxl_fops);
> > diff --git a/drivers/gpu/drm/qxl/qxl_drv.h b/drivers/gpu/drm/qxl/qxl_drv.h
> > index 435126facc9b..86ac191d9205 100644
> > --- a/drivers/gpu/drm/qxl/qxl_drv.h
> > +++ b/drivers/gpu/drm/qxl/qxl_drv.h
> > @@ -276,8 +276,7 @@ struct qxl_device {
> > extern const struct drm_ioctl_desc qxl_ioctls[];
> > extern int qxl_max_ioctl;
> >
> > -int qxl_device_init(struct qxl_device *qdev, struct drm_driver *drv,
> > - struct pci_dev *pdev);
> > +int qxl_device_init(struct qxl_device *qdev, struct pci_dev *pdev);
> > void qxl_device_fini(struct qxl_device *qdev);
> >
> > int qxl_modeset_init(struct qxl_device *qdev);
> > diff --git a/drivers/gpu/drm/qxl/qxl_kms.c b/drivers/gpu/drm/qxl/qxl_kms.c
> > index 9eed1a375f24..91a34dd835d7 100644
> > --- a/drivers/gpu/drm/qxl/qxl_kms.c
> > +++ b/drivers/gpu/drm/qxl/qxl_kms.c
> > @@ -108,21 +108,13 @@ static void qxl_gc_work(struct work_struct *work)
> > }
> >
> > int qxl_device_init(struct qxl_device *qdev,
> > - struct drm_driver *drv,
> > struct pci_dev *pdev)
> > {
> > int r, sb;
> >
> > - r = drm_dev_init(&qdev->ddev, drv, &pdev->dev);
> > - if (r) {
> > - pr_err("Unable to init drm dev");
> > - goto error;
> > - }
> > -
> > qdev->ddev.pdev = pdev;
> > pci_set_drvdata(pdev, &qdev->ddev);
> > qdev->ddev.dev_private = qdev;
> > - drmm_add_final_kfree(&qdev->ddev, qdev);
> >
> > mutex_init(&qdev->gem.mutex);
> > mutex_init(&qdev->update_area_mutex);
> > @@ -138,8 +130,7 @@ int qxl_device_init(struct qxl_device *qdev,
> > qdev->vram_mapping = io_mapping_create_wc(qdev->vram_base, pci_resource_len(pdev, 0));
> > if (!qdev->vram_mapping) {
> > pr_err("Unable to create vram_mapping");
> > - r = -ENOMEM;
> > - goto error;
> > + return -ENOMEM;
> > }
> >
> > if (pci_resource_len(pdev, 4) > 0) {
> > @@ -293,7 +284,6 @@ int qxl_device_init(struct qxl_device *qdev,
> > io_mapping_free(qdev->surface_mapping);
> > vram_mapping_free:
> > io_mapping_free(qdev->vram_mapping);
> > -error:
> > return r;
> > }
> >
> >
>
> --
> Thomas Zimmermann
> Graphics Driver Developer
> SUSE Software Solutions Germany GmbH
> Maxfeldstr. 5, 90409 Nürnberg, Germany
> (HRB 36809, AG Nürnberg)
> Geschäftsführer: Felix Imendörffer
>
--
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [Intel-gfx] [PATCH 30/44] drm/qxl: Use devm_drm_dev_alloc
@ 2020-04-07 7:19 ` Daniel Vetter
0 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-07 7:19 UTC (permalink / raw)
To: Thomas Zimmermann
Cc: Dave Airlie, Intel Graphics Development, DRI Development,
open list:VIRTIO CORE, NET...,
Gerd Hoffmann, open list:DRM DRIVER FOR QXL VIRTUAL GPU,
Daniel Vetter
On Mon, Apr 6, 2020 at 7:29 PM Thomas Zimmermann <tzimmermann@suse.de> wrote:
>
>
>
> Am 03.04.20 um 15:58 schrieb Daniel Vetter:
> > Also need to remove the drm_dev_put from the remove hook.
> >
> > Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> > Cc: Dave Airlie <airlied@redhat.com>
> > Cc: Gerd Hoffmann <kraxel@redhat.com>
> > Cc: virtualization@lists.linux-foundation.org
> > Cc: spice-devel@lists.freedesktop.org
> > ---
> > drivers/gpu/drm/qxl/qxl_drv.c | 15 ++++++++-------
> > drivers/gpu/drm/qxl/qxl_drv.h | 3 +--
> > drivers/gpu/drm/qxl/qxl_kms.c | 12 +-----------
> > 3 files changed, 10 insertions(+), 20 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/qxl/qxl_drv.c b/drivers/gpu/drm/qxl/qxl_drv.c
> > index 09102e2efabc..6b4ae4c5fb76 100644
> > --- a/drivers/gpu/drm/qxl/qxl_drv.c
> > +++ b/drivers/gpu/drm/qxl/qxl_drv.c
> > @@ -81,13 +81,16 @@ qxl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
> > return -EINVAL; /* TODO: ENODEV ? */
> > }
> >
> > - qdev = kzalloc(sizeof(struct qxl_device), GFP_KERNEL);
> > - if (!qdev)
> > + qdev = devm_drm_dev_alloc(&pdev->dev, &qxl_driver,
> > + struct qxl_device, ddev);
> > + if (IS_ERR(qdev)) {
> > + pr_err("Unable to init drm dev");
> > return -ENOMEM;
> > + }
>
> My feeling is that it is too early to allocate. Wouldn't it be better to
> first do the pdev and conflicting-fb stuff and allocate right before
> qxl_device_init() ?
It doesn't matter. I can reorder, or I can also not reorder, it'll
have 0 effects on cleanup (all done automatically) or correctness
(it's just a memory allocation, it doesn't do anything).
-Daniel
> Best regards
> Thomas
>
> >
> > ret = pci_enable_device(pdev);
> > if (ret)
> > - goto free_dev;
> > + return ret;
> >
> > ret = drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, "qxl");
> > if (ret)
> > @@ -101,7 +104,7 @@ qxl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
> > }
> > }
> >
> > - ret = qxl_device_init(qdev, &qxl_driver, pdev);
> > + ret = qxl_device_init(qdev, pdev);
> > if (ret)
> > goto put_vga;
> >
> > @@ -128,8 +131,7 @@ qxl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
> > vga_put(pdev, VGA_RSRC_LEGACY_IO);
> > disable_pci:
> > pci_disable_device(pdev);
> > -free_dev:
> > - kfree(qdev);
> > +
> > return ret;
> > }
> >
> > @@ -155,7 +157,6 @@ qxl_pci_remove(struct pci_dev *pdev)
> > drm_atomic_helper_shutdown(dev);
> > if (is_vga(pdev))
> > vga_put(pdev, VGA_RSRC_LEGACY_IO);
> > - drm_dev_put(dev);
> > }
> >
> > DEFINE_DRM_GEM_FOPS(qxl_fops);
> > diff --git a/drivers/gpu/drm/qxl/qxl_drv.h b/drivers/gpu/drm/qxl/qxl_drv.h
> > index 435126facc9b..86ac191d9205 100644
> > --- a/drivers/gpu/drm/qxl/qxl_drv.h
> > +++ b/drivers/gpu/drm/qxl/qxl_drv.h
> > @@ -276,8 +276,7 @@ struct qxl_device {
> > extern const struct drm_ioctl_desc qxl_ioctls[];
> > extern int qxl_max_ioctl;
> >
> > -int qxl_device_init(struct qxl_device *qdev, struct drm_driver *drv,
> > - struct pci_dev *pdev);
> > +int qxl_device_init(struct qxl_device *qdev, struct pci_dev *pdev);
> > void qxl_device_fini(struct qxl_device *qdev);
> >
> > int qxl_modeset_init(struct qxl_device *qdev);
> > diff --git a/drivers/gpu/drm/qxl/qxl_kms.c b/drivers/gpu/drm/qxl/qxl_kms.c
> > index 9eed1a375f24..91a34dd835d7 100644
> > --- a/drivers/gpu/drm/qxl/qxl_kms.c
> > +++ b/drivers/gpu/drm/qxl/qxl_kms.c
> > @@ -108,21 +108,13 @@ static void qxl_gc_work(struct work_struct *work)
> > }
> >
> > int qxl_device_init(struct qxl_device *qdev,
> > - struct drm_driver *drv,
> > struct pci_dev *pdev)
> > {
> > int r, sb;
> >
> > - r = drm_dev_init(&qdev->ddev, drv, &pdev->dev);
> > - if (r) {
> > - pr_err("Unable to init drm dev");
> > - goto error;
> > - }
> > -
> > qdev->ddev.pdev = pdev;
> > pci_set_drvdata(pdev, &qdev->ddev);
> > qdev->ddev.dev_private = qdev;
> > - drmm_add_final_kfree(&qdev->ddev, qdev);
> >
> > mutex_init(&qdev->gem.mutex);
> > mutex_init(&qdev->update_area_mutex);
> > @@ -138,8 +130,7 @@ int qxl_device_init(struct qxl_device *qdev,
> > qdev->vram_mapping = io_mapping_create_wc(qdev->vram_base, pci_resource_len(pdev, 0));
> > if (!qdev->vram_mapping) {
> > pr_err("Unable to create vram_mapping");
> > - r = -ENOMEM;
> > - goto error;
> > + return -ENOMEM;
> > }
> >
> > if (pci_resource_len(pdev, 4) > 0) {
> > @@ -293,7 +284,6 @@ int qxl_device_init(struct qxl_device *qdev,
> > io_mapping_free(qdev->surface_mapping);
> > vram_mapping_free:
> > io_mapping_free(qdev->vram_mapping);
> > -error:
> > return r;
> > }
> >
> >
>
> --
> Thomas Zimmermann
> Graphics Driver Developer
> SUSE Software Solutions Germany GmbH
> Maxfeldstr. 5, 90409 Nürnberg, Germany
> (HRB 36809, AG Nürnberg)
> Geschäftsführer: Felix Imendörffer
>
--
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 08/44] drm/vboxvideo: Stop using drm_device->dev_private
2020-04-06 11:56 ` [Intel-gfx] " Thomas Zimmermann
@ 2020-04-07 7:24 ` Daniel Vetter
-1 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-07 7:24 UTC (permalink / raw)
To: Thomas Zimmermann
Cc: Hans de Goede, Intel Graphics Development, DRI Development,
Daniel Vetter
On Mon, Apr 6, 2020 at 7:27 PM Thomas Zimmermann <tzimmermann@suse.de> wrote:
>
> Hi
>
> Am 03.04.20 um 15:57 schrieb Daniel Vetter:
> > We use the baseclass pattern here, so lets to the proper (and more
> > typesafe) upcasting.
> >
> > Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> > Cc: Hans de Goede <hdegoede@redhat.com>
> > ---
> > drivers/gpu/drm/vboxvideo/vbox_drv.c | 1 -
> > drivers/gpu/drm/vboxvideo/vbox_drv.h | 1 +
> > drivers/gpu/drm/vboxvideo/vbox_irq.c | 2 +-
> > drivers/gpu/drm/vboxvideo/vbox_mode.c | 10 +++++-----
> > 4 files changed, 7 insertions(+), 7 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/vboxvideo/vbox_drv.c b/drivers/gpu/drm/vboxvideo/vbox_drv.c
> > index be0600b22cf5..d34cddd809fd 100644
> > --- a/drivers/gpu/drm/vboxvideo/vbox_drv.c
> > +++ b/drivers/gpu/drm/vboxvideo/vbox_drv.c
> > @@ -52,7 +52,6 @@ static int vbox_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
> > return PTR_ERR(vbox);
> >
> > vbox->ddev.pdev = pdev;
> > - vbox->ddev.dev_private = vbox;
> > pci_set_drvdata(pdev, vbox);
> > mutex_init(&vbox->hw_mutex);
> >
> > diff --git a/drivers/gpu/drm/vboxvideo/vbox_drv.h b/drivers/gpu/drm/vboxvideo/vbox_drv.h
> > index 87421903816c..ac7c2effc46f 100644
> > --- a/drivers/gpu/drm/vboxvideo/vbox_drv.h
> > +++ b/drivers/gpu/drm/vboxvideo/vbox_drv.h
> > @@ -127,6 +127,7 @@ struct vbox_encoder {
> > #define to_vbox_crtc(x) container_of(x, struct vbox_crtc, base)
> > #define to_vbox_connector(x) container_of(x, struct vbox_connector, base)
> > #define to_vbox_encoder(x) container_of(x, struct vbox_encoder, base)
> > +#define to_vbox_dev(x) container_of(x, struct vbox_private, ddev)
>
> I suggest ot call this macro to to_vbox_device(). At some point, we
> should rename struct vbox_private to struct vbox_device for consistency
> among drivers. The new macro's name would then fit.
So I've seen naming conventions around this with a _dev suffix, a _drm
suffix, a _priv suffix and no suffix (since it's the top level object
you kinda can justify that too). I admit the choice I went with was
occasionally a bit random, but that's mostly because there's not much
consistency here at all. This applies both to the upcast macro and the
struct itself.
iow I'm not sure this bikeshed is worth repainting, current status is
rather multicolor already ... It's also an enormous amounts of churn
to repaint this stuff already (just git grep dev_private --
drivers/gpu/drm), so I'm not super enthusiastic about adding more
churn on top ...
Still feel strongly about this one and the others you've brought up?
-Daniel
> For the overall patch:
>
> Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
>
> Best regards
> Thomas
>
> >
> > bool vbox_check_supported(u16 id);
> > int vbox_hw_init(struct vbox_private *vbox);
> > diff --git a/drivers/gpu/drm/vboxvideo/vbox_irq.c b/drivers/gpu/drm/vboxvideo/vbox_irq.c
> > index 16a1e29f5292..631657fa554f 100644
> > --- a/drivers/gpu/drm/vboxvideo/vbox_irq.c
> > +++ b/drivers/gpu/drm/vboxvideo/vbox_irq.c
> > @@ -34,7 +34,7 @@ void vbox_report_hotplug(struct vbox_private *vbox)
> > irqreturn_t vbox_irq_handler(int irq, void *arg)
> > {
> > struct drm_device *dev = (struct drm_device *)arg;
> > - struct vbox_private *vbox = (struct vbox_private *)dev->dev_private;
> > + struct vbox_private *vbox = to_vbox_dev(dev);
> > u32 host_flags = vbox_get_flags(vbox);
> >
> > if (!(host_flags & HGSMIHOSTFLAGS_IRQ))
> > diff --git a/drivers/gpu/drm/vboxvideo/vbox_mode.c b/drivers/gpu/drm/vboxvideo/vbox_mode.c
> > index 0883a435e62b..d9a5af62af89 100644
> > --- a/drivers/gpu/drm/vboxvideo/vbox_mode.c
> > +++ b/drivers/gpu/drm/vboxvideo/vbox_mode.c
> > @@ -36,7 +36,7 @@ static void vbox_do_modeset(struct drm_crtc *crtc)
> > u16 flags;
> > s32 x_offset, y_offset;
> >
> > - vbox = crtc->dev->dev_private;
> > + vbox = to_vbox_dev(crtc->dev);
> > width = vbox_crtc->width ? vbox_crtc->width : 640;
> > height = vbox_crtc->height ? vbox_crtc->height : 480;
> > bpp = fb ? fb->format->cpp[0] * 8 : 32;
> > @@ -77,7 +77,7 @@ static void vbox_do_modeset(struct drm_crtc *crtc)
> > static int vbox_set_view(struct drm_crtc *crtc)
> > {
> > struct vbox_crtc *vbox_crtc = to_vbox_crtc(crtc);
> > - struct vbox_private *vbox = crtc->dev->dev_private;
> > + struct vbox_private *vbox = to_vbox_dev(crtc->dev);
> > struct vbva_infoview *p;
> >
> > /*
> > @@ -174,7 +174,7 @@ static void vbox_crtc_set_base_and_mode(struct drm_crtc *crtc,
> > int x, int y)
> > {
> > struct drm_gem_vram_object *gbo = drm_gem_vram_of_gem(fb->obj[0]);
> > - struct vbox_private *vbox = crtc->dev->dev_private;
> > + struct vbox_private *vbox = to_vbox_dev(crtc->dev);
> > struct vbox_crtc *vbox_crtc = to_vbox_crtc(crtc);
> > bool needs_modeset = drm_atomic_crtc_needs_modeset(crtc->state);
> >
> > @@ -272,7 +272,7 @@ static void vbox_primary_atomic_update(struct drm_plane *plane,
> > {
> > struct drm_crtc *crtc = plane->state->crtc;
> > struct drm_framebuffer *fb = plane->state->fb;
> > - struct vbox_private *vbox = fb->dev->dev_private;
> > + struct vbox_private *vbox = to_vbox_dev(fb->dev);
> > struct drm_mode_rect *clips;
> > uint32_t num_clips, i;
> >
> > @@ -704,7 +704,7 @@ static int vbox_get_modes(struct drm_connector *connector)
> > int preferred_width, preferred_height;
> >
> > vbox_connector = to_vbox_connector(connector);
> > - vbox = connector->dev->dev_private;
> > + vbox = to_vbox_dev(connector->dev);
> >
> > hgsmi_report_flags_location(vbox->guest_pool, GUEST_HEAP_OFFSET(vbox) +
> > HOST_FLAGS_OFFSET);
> >
>
> --
> Thomas Zimmermann
> Graphics Driver Developer
> SUSE Software Solutions Germany GmbH
> Maxfeldstr. 5, 90409 Nürnberg, Germany
> (HRB 36809, AG Nürnberg)
> Geschäftsführer: Felix Imendörffer
>
--
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [Intel-gfx] [PATCH 08/44] drm/vboxvideo: Stop using drm_device->dev_private
@ 2020-04-07 7:24 ` Daniel Vetter
0 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-07 7:24 UTC (permalink / raw)
To: Thomas Zimmermann
Cc: Intel Graphics Development, DRI Development, Daniel Vetter
On Mon, Apr 6, 2020 at 7:27 PM Thomas Zimmermann <tzimmermann@suse.de> wrote:
>
> Hi
>
> Am 03.04.20 um 15:57 schrieb Daniel Vetter:
> > We use the baseclass pattern here, so lets to the proper (and more
> > typesafe) upcasting.
> >
> > Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> > Cc: Hans de Goede <hdegoede@redhat.com>
> > ---
> > drivers/gpu/drm/vboxvideo/vbox_drv.c | 1 -
> > drivers/gpu/drm/vboxvideo/vbox_drv.h | 1 +
> > drivers/gpu/drm/vboxvideo/vbox_irq.c | 2 +-
> > drivers/gpu/drm/vboxvideo/vbox_mode.c | 10 +++++-----
> > 4 files changed, 7 insertions(+), 7 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/vboxvideo/vbox_drv.c b/drivers/gpu/drm/vboxvideo/vbox_drv.c
> > index be0600b22cf5..d34cddd809fd 100644
> > --- a/drivers/gpu/drm/vboxvideo/vbox_drv.c
> > +++ b/drivers/gpu/drm/vboxvideo/vbox_drv.c
> > @@ -52,7 +52,6 @@ static int vbox_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
> > return PTR_ERR(vbox);
> >
> > vbox->ddev.pdev = pdev;
> > - vbox->ddev.dev_private = vbox;
> > pci_set_drvdata(pdev, vbox);
> > mutex_init(&vbox->hw_mutex);
> >
> > diff --git a/drivers/gpu/drm/vboxvideo/vbox_drv.h b/drivers/gpu/drm/vboxvideo/vbox_drv.h
> > index 87421903816c..ac7c2effc46f 100644
> > --- a/drivers/gpu/drm/vboxvideo/vbox_drv.h
> > +++ b/drivers/gpu/drm/vboxvideo/vbox_drv.h
> > @@ -127,6 +127,7 @@ struct vbox_encoder {
> > #define to_vbox_crtc(x) container_of(x, struct vbox_crtc, base)
> > #define to_vbox_connector(x) container_of(x, struct vbox_connector, base)
> > #define to_vbox_encoder(x) container_of(x, struct vbox_encoder, base)
> > +#define to_vbox_dev(x) container_of(x, struct vbox_private, ddev)
>
> I suggest ot call this macro to to_vbox_device(). At some point, we
> should rename struct vbox_private to struct vbox_device for consistency
> among drivers. The new macro's name would then fit.
So I've seen naming conventions around this with a _dev suffix, a _drm
suffix, a _priv suffix and no suffix (since it's the top level object
you kinda can justify that too). I admit the choice I went with was
occasionally a bit random, but that's mostly because there's not much
consistency here at all. This applies both to the upcast macro and the
struct itself.
iow I'm not sure this bikeshed is worth repainting, current status is
rather multicolor already ... It's also an enormous amounts of churn
to repaint this stuff already (just git grep dev_private --
drivers/gpu/drm), so I'm not super enthusiastic about adding more
churn on top ...
Still feel strongly about this one and the others you've brought up?
-Daniel
> For the overall patch:
>
> Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
>
> Best regards
> Thomas
>
> >
> > bool vbox_check_supported(u16 id);
> > int vbox_hw_init(struct vbox_private *vbox);
> > diff --git a/drivers/gpu/drm/vboxvideo/vbox_irq.c b/drivers/gpu/drm/vboxvideo/vbox_irq.c
> > index 16a1e29f5292..631657fa554f 100644
> > --- a/drivers/gpu/drm/vboxvideo/vbox_irq.c
> > +++ b/drivers/gpu/drm/vboxvideo/vbox_irq.c
> > @@ -34,7 +34,7 @@ void vbox_report_hotplug(struct vbox_private *vbox)
> > irqreturn_t vbox_irq_handler(int irq, void *arg)
> > {
> > struct drm_device *dev = (struct drm_device *)arg;
> > - struct vbox_private *vbox = (struct vbox_private *)dev->dev_private;
> > + struct vbox_private *vbox = to_vbox_dev(dev);
> > u32 host_flags = vbox_get_flags(vbox);
> >
> > if (!(host_flags & HGSMIHOSTFLAGS_IRQ))
> > diff --git a/drivers/gpu/drm/vboxvideo/vbox_mode.c b/drivers/gpu/drm/vboxvideo/vbox_mode.c
> > index 0883a435e62b..d9a5af62af89 100644
> > --- a/drivers/gpu/drm/vboxvideo/vbox_mode.c
> > +++ b/drivers/gpu/drm/vboxvideo/vbox_mode.c
> > @@ -36,7 +36,7 @@ static void vbox_do_modeset(struct drm_crtc *crtc)
> > u16 flags;
> > s32 x_offset, y_offset;
> >
> > - vbox = crtc->dev->dev_private;
> > + vbox = to_vbox_dev(crtc->dev);
> > width = vbox_crtc->width ? vbox_crtc->width : 640;
> > height = vbox_crtc->height ? vbox_crtc->height : 480;
> > bpp = fb ? fb->format->cpp[0] * 8 : 32;
> > @@ -77,7 +77,7 @@ static void vbox_do_modeset(struct drm_crtc *crtc)
> > static int vbox_set_view(struct drm_crtc *crtc)
> > {
> > struct vbox_crtc *vbox_crtc = to_vbox_crtc(crtc);
> > - struct vbox_private *vbox = crtc->dev->dev_private;
> > + struct vbox_private *vbox = to_vbox_dev(crtc->dev);
> > struct vbva_infoview *p;
> >
> > /*
> > @@ -174,7 +174,7 @@ static void vbox_crtc_set_base_and_mode(struct drm_crtc *crtc,
> > int x, int y)
> > {
> > struct drm_gem_vram_object *gbo = drm_gem_vram_of_gem(fb->obj[0]);
> > - struct vbox_private *vbox = crtc->dev->dev_private;
> > + struct vbox_private *vbox = to_vbox_dev(crtc->dev);
> > struct vbox_crtc *vbox_crtc = to_vbox_crtc(crtc);
> > bool needs_modeset = drm_atomic_crtc_needs_modeset(crtc->state);
> >
> > @@ -272,7 +272,7 @@ static void vbox_primary_atomic_update(struct drm_plane *plane,
> > {
> > struct drm_crtc *crtc = plane->state->crtc;
> > struct drm_framebuffer *fb = plane->state->fb;
> > - struct vbox_private *vbox = fb->dev->dev_private;
> > + struct vbox_private *vbox = to_vbox_dev(fb->dev);
> > struct drm_mode_rect *clips;
> > uint32_t num_clips, i;
> >
> > @@ -704,7 +704,7 @@ static int vbox_get_modes(struct drm_connector *connector)
> > int preferred_width, preferred_height;
> >
> > vbox_connector = to_vbox_connector(connector);
> > - vbox = connector->dev->dev_private;
> > + vbox = to_vbox_dev(connector->dev);
> >
> > hgsmi_report_flags_location(vbox->guest_pool, GUEST_HEAP_OFFSET(vbox) +
> > HOST_FLAGS_OFFSET);
> >
>
> --
> Thomas Zimmermann
> Graphics Driver Developer
> SUSE Software Solutions Germany GmbH
> Maxfeldstr. 5, 90409 Nürnberg, Germany
> (HRB 36809, AG Nürnberg)
> Geschäftsführer: Felix Imendörffer
>
--
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 08/44] drm/vboxvideo: Stop using drm_device->dev_private
2020-04-07 7:24 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-08 6:33 ` Thomas Zimmermann
-1 siblings, 0 replies; 262+ messages in thread
From: Thomas Zimmermann @ 2020-04-08 6:33 UTC (permalink / raw)
To: Daniel Vetter
Cc: Hans de Goede, Intel Graphics Development, DRI Development,
Daniel Vetter
[-- Attachment #1.1.1: Type: text/plain, Size: 6686 bytes --]
Hi
Am 07.04.20 um 09:24 schrieb Daniel Vetter:
> On Mon, Apr 6, 2020 at 7:27 PM Thomas Zimmermann <tzimmermann@suse.de> wrote:
>>
>> Hi
>>
>> Am 03.04.20 um 15:57 schrieb Daniel Vetter:
>>> We use the baseclass pattern here, so lets to the proper (and more
>>> typesafe) upcasting.
>>>
>>> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
>>> Cc: Hans de Goede <hdegoede@redhat.com>
>>> ---
>>> drivers/gpu/drm/vboxvideo/vbox_drv.c | 1 -
>>> drivers/gpu/drm/vboxvideo/vbox_drv.h | 1 +
>>> drivers/gpu/drm/vboxvideo/vbox_irq.c | 2 +-
>>> drivers/gpu/drm/vboxvideo/vbox_mode.c | 10 +++++-----
>>> 4 files changed, 7 insertions(+), 7 deletions(-)
>>>
>>> diff --git a/drivers/gpu/drm/vboxvideo/vbox_drv.c b/drivers/gpu/drm/vboxvideo/vbox_drv.c
>>> index be0600b22cf5..d34cddd809fd 100644
>>> --- a/drivers/gpu/drm/vboxvideo/vbox_drv.c
>>> +++ b/drivers/gpu/drm/vboxvideo/vbox_drv.c
>>> @@ -52,7 +52,6 @@ static int vbox_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
>>> return PTR_ERR(vbox);
>>>
>>> vbox->ddev.pdev = pdev;
>>> - vbox->ddev.dev_private = vbox;
>>> pci_set_drvdata(pdev, vbox);
>>> mutex_init(&vbox->hw_mutex);
>>>
>>> diff --git a/drivers/gpu/drm/vboxvideo/vbox_drv.h b/drivers/gpu/drm/vboxvideo/vbox_drv.h
>>> index 87421903816c..ac7c2effc46f 100644
>>> --- a/drivers/gpu/drm/vboxvideo/vbox_drv.h
>>> +++ b/drivers/gpu/drm/vboxvideo/vbox_drv.h
>>> @@ -127,6 +127,7 @@ struct vbox_encoder {
>>> #define to_vbox_crtc(x) container_of(x, struct vbox_crtc, base)
>>> #define to_vbox_connector(x) container_of(x, struct vbox_connector, base)
>>> #define to_vbox_encoder(x) container_of(x, struct vbox_encoder, base)
>>> +#define to_vbox_dev(x) container_of(x, struct vbox_private, ddev)
>>
>> I suggest ot call this macro to to_vbox_device(). At some point, we
>> should rename struct vbox_private to struct vbox_device for consistency
>> among drivers. The new macro's name would then fit.
>
> So I've seen naming conventions around this with a _dev suffix, a _drm
> suffix, a _priv suffix and no suffix (since it's the top level object
> you kinda can justify that too). I admit the choice I went with was
> occasionally a bit random, but that's mostly because there's not much
> consistency here at all. This applies both to the upcast macro and the
> struct itself.
>
> iow I'm not sure this bikeshed is worth repainting, current status is
> rather multicolor already ... It's also an enormous amounts of churn
> to repaint this stuff already (just git grep dev_private --
> drivers/gpu/drm), so I'm not super enthusiastic about adding more
> churn on top ...
>
> Still feel strongly about this one and the others you've brought up?
I have no strong feelings about it. :) But since you're introducing the
macro, I thought that naming it to_vbox_device() would be consisted
within the driver.
Best regards
Thomas
> -Daniel
>
>> For the overall patch:
>>
>> Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
>>
>> Best regards
>> Thomas
>>
>>>
>>> bool vbox_check_supported(u16 id);
>>> int vbox_hw_init(struct vbox_private *vbox);
>>> diff --git a/drivers/gpu/drm/vboxvideo/vbox_irq.c b/drivers/gpu/drm/vboxvideo/vbox_irq.c
>>> index 16a1e29f5292..631657fa554f 100644
>>> --- a/drivers/gpu/drm/vboxvideo/vbox_irq.c
>>> +++ b/drivers/gpu/drm/vboxvideo/vbox_irq.c
>>> @@ -34,7 +34,7 @@ void vbox_report_hotplug(struct vbox_private *vbox)
>>> irqreturn_t vbox_irq_handler(int irq, void *arg)
>>> {
>>> struct drm_device *dev = (struct drm_device *)arg;
>>> - struct vbox_private *vbox = (struct vbox_private *)dev->dev_private;
>>> + struct vbox_private *vbox = to_vbox_dev(dev);
>>> u32 host_flags = vbox_get_flags(vbox);
>>>
>>> if (!(host_flags & HGSMIHOSTFLAGS_IRQ))
>>> diff --git a/drivers/gpu/drm/vboxvideo/vbox_mode.c b/drivers/gpu/drm/vboxvideo/vbox_mode.c
>>> index 0883a435e62b..d9a5af62af89 100644
>>> --- a/drivers/gpu/drm/vboxvideo/vbox_mode.c
>>> +++ b/drivers/gpu/drm/vboxvideo/vbox_mode.c
>>> @@ -36,7 +36,7 @@ static void vbox_do_modeset(struct drm_crtc *crtc)
>>> u16 flags;
>>> s32 x_offset, y_offset;
>>>
>>> - vbox = crtc->dev->dev_private;
>>> + vbox = to_vbox_dev(crtc->dev);
>>> width = vbox_crtc->width ? vbox_crtc->width : 640;
>>> height = vbox_crtc->height ? vbox_crtc->height : 480;
>>> bpp = fb ? fb->format->cpp[0] * 8 : 32;
>>> @@ -77,7 +77,7 @@ static void vbox_do_modeset(struct drm_crtc *crtc)
>>> static int vbox_set_view(struct drm_crtc *crtc)
>>> {
>>> struct vbox_crtc *vbox_crtc = to_vbox_crtc(crtc);
>>> - struct vbox_private *vbox = crtc->dev->dev_private;
>>> + struct vbox_private *vbox = to_vbox_dev(crtc->dev);
>>> struct vbva_infoview *p;
>>>
>>> /*
>>> @@ -174,7 +174,7 @@ static void vbox_crtc_set_base_and_mode(struct drm_crtc *crtc,
>>> int x, int y)
>>> {
>>> struct drm_gem_vram_object *gbo = drm_gem_vram_of_gem(fb->obj[0]);
>>> - struct vbox_private *vbox = crtc->dev->dev_private;
>>> + struct vbox_private *vbox = to_vbox_dev(crtc->dev);
>>> struct vbox_crtc *vbox_crtc = to_vbox_crtc(crtc);
>>> bool needs_modeset = drm_atomic_crtc_needs_modeset(crtc->state);
>>>
>>> @@ -272,7 +272,7 @@ static void vbox_primary_atomic_update(struct drm_plane *plane,
>>> {
>>> struct drm_crtc *crtc = plane->state->crtc;
>>> struct drm_framebuffer *fb = plane->state->fb;
>>> - struct vbox_private *vbox = fb->dev->dev_private;
>>> + struct vbox_private *vbox = to_vbox_dev(fb->dev);
>>> struct drm_mode_rect *clips;
>>> uint32_t num_clips, i;
>>>
>>> @@ -704,7 +704,7 @@ static int vbox_get_modes(struct drm_connector *connector)
>>> int preferred_width, preferred_height;
>>>
>>> vbox_connector = to_vbox_connector(connector);
>>> - vbox = connector->dev->dev_private;
>>> + vbox = to_vbox_dev(connector->dev);
>>>
>>> hgsmi_report_flags_location(vbox->guest_pool, GUEST_HEAP_OFFSET(vbox) +
>>> HOST_FLAGS_OFFSET);
>>>
>>
>> --
>> Thomas Zimmermann
>> Graphics Driver Developer
>> SUSE Software Solutions Germany GmbH
>> Maxfeldstr. 5, 90409 Nürnberg, Germany
>> (HRB 36809, AG Nürnberg)
>> Geschäftsführer: Felix Imendörffer
>>
>
>
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Felix Imendörffer
[-- Attachment #1.2: OpenPGP digital signature --]
[-- Type: application/pgp-signature, Size: 488 bytes --]
[-- Attachment #2: Type: text/plain, Size: 160 bytes --]
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [Intel-gfx] [PATCH 08/44] drm/vboxvideo: Stop using drm_device->dev_private
@ 2020-04-08 6:33 ` Thomas Zimmermann
0 siblings, 0 replies; 262+ messages in thread
From: Thomas Zimmermann @ 2020-04-08 6:33 UTC (permalink / raw)
To: Daniel Vetter; +Cc: Intel Graphics Development, DRI Development, Daniel Vetter
[-- Attachment #1.1.1: Type: text/plain, Size: 6686 bytes --]
Hi
Am 07.04.20 um 09:24 schrieb Daniel Vetter:
> On Mon, Apr 6, 2020 at 7:27 PM Thomas Zimmermann <tzimmermann@suse.de> wrote:
>>
>> Hi
>>
>> Am 03.04.20 um 15:57 schrieb Daniel Vetter:
>>> We use the baseclass pattern here, so lets to the proper (and more
>>> typesafe) upcasting.
>>>
>>> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
>>> Cc: Hans de Goede <hdegoede@redhat.com>
>>> ---
>>> drivers/gpu/drm/vboxvideo/vbox_drv.c | 1 -
>>> drivers/gpu/drm/vboxvideo/vbox_drv.h | 1 +
>>> drivers/gpu/drm/vboxvideo/vbox_irq.c | 2 +-
>>> drivers/gpu/drm/vboxvideo/vbox_mode.c | 10 +++++-----
>>> 4 files changed, 7 insertions(+), 7 deletions(-)
>>>
>>> diff --git a/drivers/gpu/drm/vboxvideo/vbox_drv.c b/drivers/gpu/drm/vboxvideo/vbox_drv.c
>>> index be0600b22cf5..d34cddd809fd 100644
>>> --- a/drivers/gpu/drm/vboxvideo/vbox_drv.c
>>> +++ b/drivers/gpu/drm/vboxvideo/vbox_drv.c
>>> @@ -52,7 +52,6 @@ static int vbox_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
>>> return PTR_ERR(vbox);
>>>
>>> vbox->ddev.pdev = pdev;
>>> - vbox->ddev.dev_private = vbox;
>>> pci_set_drvdata(pdev, vbox);
>>> mutex_init(&vbox->hw_mutex);
>>>
>>> diff --git a/drivers/gpu/drm/vboxvideo/vbox_drv.h b/drivers/gpu/drm/vboxvideo/vbox_drv.h
>>> index 87421903816c..ac7c2effc46f 100644
>>> --- a/drivers/gpu/drm/vboxvideo/vbox_drv.h
>>> +++ b/drivers/gpu/drm/vboxvideo/vbox_drv.h
>>> @@ -127,6 +127,7 @@ struct vbox_encoder {
>>> #define to_vbox_crtc(x) container_of(x, struct vbox_crtc, base)
>>> #define to_vbox_connector(x) container_of(x, struct vbox_connector, base)
>>> #define to_vbox_encoder(x) container_of(x, struct vbox_encoder, base)
>>> +#define to_vbox_dev(x) container_of(x, struct vbox_private, ddev)
>>
>> I suggest ot call this macro to to_vbox_device(). At some point, we
>> should rename struct vbox_private to struct vbox_device for consistency
>> among drivers. The new macro's name would then fit.
>
> So I've seen naming conventions around this with a _dev suffix, a _drm
> suffix, a _priv suffix and no suffix (since it's the top level object
> you kinda can justify that too). I admit the choice I went with was
> occasionally a bit random, but that's mostly because there's not much
> consistency here at all. This applies both to the upcast macro and the
> struct itself.
>
> iow I'm not sure this bikeshed is worth repainting, current status is
> rather multicolor already ... It's also an enormous amounts of churn
> to repaint this stuff already (just git grep dev_private --
> drivers/gpu/drm), so I'm not super enthusiastic about adding more
> churn on top ...
>
> Still feel strongly about this one and the others you've brought up?
I have no strong feelings about it. :) But since you're introducing the
macro, I thought that naming it to_vbox_device() would be consisted
within the driver.
Best regards
Thomas
> -Daniel
>
>> For the overall patch:
>>
>> Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
>>
>> Best regards
>> Thomas
>>
>>>
>>> bool vbox_check_supported(u16 id);
>>> int vbox_hw_init(struct vbox_private *vbox);
>>> diff --git a/drivers/gpu/drm/vboxvideo/vbox_irq.c b/drivers/gpu/drm/vboxvideo/vbox_irq.c
>>> index 16a1e29f5292..631657fa554f 100644
>>> --- a/drivers/gpu/drm/vboxvideo/vbox_irq.c
>>> +++ b/drivers/gpu/drm/vboxvideo/vbox_irq.c
>>> @@ -34,7 +34,7 @@ void vbox_report_hotplug(struct vbox_private *vbox)
>>> irqreturn_t vbox_irq_handler(int irq, void *arg)
>>> {
>>> struct drm_device *dev = (struct drm_device *)arg;
>>> - struct vbox_private *vbox = (struct vbox_private *)dev->dev_private;
>>> + struct vbox_private *vbox = to_vbox_dev(dev);
>>> u32 host_flags = vbox_get_flags(vbox);
>>>
>>> if (!(host_flags & HGSMIHOSTFLAGS_IRQ))
>>> diff --git a/drivers/gpu/drm/vboxvideo/vbox_mode.c b/drivers/gpu/drm/vboxvideo/vbox_mode.c
>>> index 0883a435e62b..d9a5af62af89 100644
>>> --- a/drivers/gpu/drm/vboxvideo/vbox_mode.c
>>> +++ b/drivers/gpu/drm/vboxvideo/vbox_mode.c
>>> @@ -36,7 +36,7 @@ static void vbox_do_modeset(struct drm_crtc *crtc)
>>> u16 flags;
>>> s32 x_offset, y_offset;
>>>
>>> - vbox = crtc->dev->dev_private;
>>> + vbox = to_vbox_dev(crtc->dev);
>>> width = vbox_crtc->width ? vbox_crtc->width : 640;
>>> height = vbox_crtc->height ? vbox_crtc->height : 480;
>>> bpp = fb ? fb->format->cpp[0] * 8 : 32;
>>> @@ -77,7 +77,7 @@ static void vbox_do_modeset(struct drm_crtc *crtc)
>>> static int vbox_set_view(struct drm_crtc *crtc)
>>> {
>>> struct vbox_crtc *vbox_crtc = to_vbox_crtc(crtc);
>>> - struct vbox_private *vbox = crtc->dev->dev_private;
>>> + struct vbox_private *vbox = to_vbox_dev(crtc->dev);
>>> struct vbva_infoview *p;
>>>
>>> /*
>>> @@ -174,7 +174,7 @@ static void vbox_crtc_set_base_and_mode(struct drm_crtc *crtc,
>>> int x, int y)
>>> {
>>> struct drm_gem_vram_object *gbo = drm_gem_vram_of_gem(fb->obj[0]);
>>> - struct vbox_private *vbox = crtc->dev->dev_private;
>>> + struct vbox_private *vbox = to_vbox_dev(crtc->dev);
>>> struct vbox_crtc *vbox_crtc = to_vbox_crtc(crtc);
>>> bool needs_modeset = drm_atomic_crtc_needs_modeset(crtc->state);
>>>
>>> @@ -272,7 +272,7 @@ static void vbox_primary_atomic_update(struct drm_plane *plane,
>>> {
>>> struct drm_crtc *crtc = plane->state->crtc;
>>> struct drm_framebuffer *fb = plane->state->fb;
>>> - struct vbox_private *vbox = fb->dev->dev_private;
>>> + struct vbox_private *vbox = to_vbox_dev(fb->dev);
>>> struct drm_mode_rect *clips;
>>> uint32_t num_clips, i;
>>>
>>> @@ -704,7 +704,7 @@ static int vbox_get_modes(struct drm_connector *connector)
>>> int preferred_width, preferred_height;
>>>
>>> vbox_connector = to_vbox_connector(connector);
>>> - vbox = connector->dev->dev_private;
>>> + vbox = to_vbox_dev(connector->dev);
>>>
>>> hgsmi_report_flags_location(vbox->guest_pool, GUEST_HEAP_OFFSET(vbox) +
>>> HOST_FLAGS_OFFSET);
>>>
>>
>> --
>> Thomas Zimmermann
>> Graphics Driver Developer
>> SUSE Software Solutions Germany GmbH
>> Maxfeldstr. 5, 90409 Nürnberg, Germany
>> (HRB 36809, AG Nürnberg)
>> Geschäftsführer: Felix Imendörffer
>>
>
>
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Felix Imendörffer
[-- Attachment #1.2: OpenPGP digital signature --]
[-- Type: application/pgp-signature, Size: 488 bytes --]
[-- Attachment #2: Type: text/plain, Size: 160 bytes --]
_______________________________________________
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https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 02/44] drm: Add devm_drm_dev_alloc macro
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-08 6:57 ` Sam Ravnborg
-1 siblings, 0 replies; 262+ messages in thread
From: Sam Ravnborg @ 2020-04-08 6:57 UTC (permalink / raw)
To: Daniel Vetter
Cc: Paul Kocialkowski, Daniel Vetter, Intel Graphics Development,
Laurent Pinchart, DRI Development
Hi Daniel.
Finally managed to dive into this..
Maybe I need more coffee, it is still morning here.
But alas this patch triggered a few comments.
Sam
On Fri, Apr 03, 2020 at 03:57:46PM +0200, Daniel Vetter wrote:
> The kerneldoc is only added for this new function. Existing kerneldoc
> and examples will be udated at the very end, since once all drivers
> are converted over to devm_drm_dev_alloc we can unexport a lot of
> interim functions and make the documentation for driver authors a lot
> cleaner and less confusing. There will be only one true way to
> initialize a drm_device at the end of this, which is going to be
> devm_drm_dev_alloc.
This changelog entry does a poor job describing what the purpose of this
change is.
Try to read it outside context.
>
> Cc: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> ---
> drivers/gpu/drm/drm_drv.c | 23 +++++++++++++++++++++++
> include/drm/drm_drv.h | 33 +++++++++++++++++++++++++++++++++
> 2 files changed, 56 insertions(+)
>
> diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c
> index 1bb4f636b83c..9e60b784b3ac 100644
> --- a/drivers/gpu/drm/drm_drv.c
> +++ b/drivers/gpu/drm/drm_drv.c
> @@ -739,6 +739,29 @@ int devm_drm_dev_init(struct device *parent,
> }
> EXPORT_SYMBOL(devm_drm_dev_init);
>
> +void* __devm_drm_dev_alloc(struct device *parent, struct drm_driver *driver,
> + size_t size, size_t offset)
> +{
> + void *container;
> + struct drm_device *drm;
> + int ret;
> +
> + container = kzalloc(size, GFP_KERNEL);
> + if (!container)
> + return ERR_PTR(-ENOMEM);
> +
> + drm = container + offset;
> + ret = devm_drm_dev_init(parent, drm, driver);
> + if (ret) {
> + kfree(container);
> + return ERR_PTR(ret);
> + }
> + drmm_add_final_kfree(drm, container);
> +
> + return container;
> +}
> +EXPORT_SYMBOL(__devm_drm_dev_alloc);
> +
> /**
> * drm_dev_alloc - Allocate new DRM device
> * @driver: DRM driver to allocate device for
> diff --git a/include/drm/drm_drv.h b/include/drm/drm_drv.h
> index e7c6ea261ed1..26776be5a21e 100644
> --- a/include/drm/drm_drv.h
> +++ b/include/drm/drm_drv.h
> @@ -626,6 +626,39 @@ int devm_drm_dev_init(struct device *parent,
> struct drm_device *dev,
> struct drm_driver *driver);
>
> +void* __devm_drm_dev_alloc(struct device *parent, struct drm_driver *driver,
> + size_t size, size_t offset);
> +
> +/**
> + * devm_drm_dev_alloc - Resource managed allocation of a &drm_device instance
> + * @parent: Parent device object
> + * @driver: DRM driver
> + * @type: the type of the struct which contains struct &drm_device
> + * @member: the name of the &drm_device within @type.
I am confused about the naming here.
devm_ implies we allocate something with a lifetime equal that of a
driver. So when the driver are gone what we allocate is also gone.
Like everythign else devm_ prefixed.
But the lifetime of a drm_device is until the last userspace reference
is gone (final drm_dev_put() is called).
> + *
> + * This allocates and initialize a new DRM device. No device registration is done.
> + * Call drm_dev_register() to advertice the device to user space and register it
> + * with other core subsystems. This should be done last in the device
s/This/Calling drm_dev_register()/ will make this sentence a bit more
explicit.
> + * initialization sequence to make sure userspace can't access an inconsistent
> + * state.
> + *
> + * The initial ref-count of the object is 1. Use drm_dev_get() and
> + * drm_dev_put() to take and drop further ref-counts.
> + *
> + * It is recommended that drivers embed &struct drm_device into their own device
> + * structure.
> + *
> + * Note that this manages the lifetime of the resulting &drm_device
> + * automatically using devres.
Hmm, no this is managed by drmres???
> + * The DRM device initialized with this function is
> + * automatically put on driver detach using drm_dev_put().
> + *
> + * RETURNS:
> + * Pointer to new DRM device, or ERR_PTR on failure.
> + */
> +#define devm_drm_dev_alloc(parent, driver, type, member) \
> + ((type *) __devm_drm_dev_alloc(parent, driver, sizeof(type), \
> + offsetof(type, member)))
> +
> struct drm_device *drm_dev_alloc(struct drm_driver *driver,
> struct device *parent);
> int drm_dev_register(struct drm_device *dev, unsigned long flags);
> --
> 2.25.1
>
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
_______________________________________________
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dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [Intel-gfx] [PATCH 02/44] drm: Add devm_drm_dev_alloc macro
@ 2020-04-08 6:57 ` Sam Ravnborg
0 siblings, 0 replies; 262+ messages in thread
From: Sam Ravnborg @ 2020-04-08 6:57 UTC (permalink / raw)
To: Daniel Vetter
Cc: Paul Kocialkowski, Daniel Vetter, Intel Graphics Development,
Laurent Pinchart, DRI Development
Hi Daniel.
Finally managed to dive into this..
Maybe I need more coffee, it is still morning here.
But alas this patch triggered a few comments.
Sam
On Fri, Apr 03, 2020 at 03:57:46PM +0200, Daniel Vetter wrote:
> The kerneldoc is only added for this new function. Existing kerneldoc
> and examples will be udated at the very end, since once all drivers
> are converted over to devm_drm_dev_alloc we can unexport a lot of
> interim functions and make the documentation for driver authors a lot
> cleaner and less confusing. There will be only one true way to
> initialize a drm_device at the end of this, which is going to be
> devm_drm_dev_alloc.
This changelog entry does a poor job describing what the purpose of this
change is.
Try to read it outside context.
>
> Cc: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> ---
> drivers/gpu/drm/drm_drv.c | 23 +++++++++++++++++++++++
> include/drm/drm_drv.h | 33 +++++++++++++++++++++++++++++++++
> 2 files changed, 56 insertions(+)
>
> diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c
> index 1bb4f636b83c..9e60b784b3ac 100644
> --- a/drivers/gpu/drm/drm_drv.c
> +++ b/drivers/gpu/drm/drm_drv.c
> @@ -739,6 +739,29 @@ int devm_drm_dev_init(struct device *parent,
> }
> EXPORT_SYMBOL(devm_drm_dev_init);
>
> +void* __devm_drm_dev_alloc(struct device *parent, struct drm_driver *driver,
> + size_t size, size_t offset)
> +{
> + void *container;
> + struct drm_device *drm;
> + int ret;
> +
> + container = kzalloc(size, GFP_KERNEL);
> + if (!container)
> + return ERR_PTR(-ENOMEM);
> +
> + drm = container + offset;
> + ret = devm_drm_dev_init(parent, drm, driver);
> + if (ret) {
> + kfree(container);
> + return ERR_PTR(ret);
> + }
> + drmm_add_final_kfree(drm, container);
> +
> + return container;
> +}
> +EXPORT_SYMBOL(__devm_drm_dev_alloc);
> +
> /**
> * drm_dev_alloc - Allocate new DRM device
> * @driver: DRM driver to allocate device for
> diff --git a/include/drm/drm_drv.h b/include/drm/drm_drv.h
> index e7c6ea261ed1..26776be5a21e 100644
> --- a/include/drm/drm_drv.h
> +++ b/include/drm/drm_drv.h
> @@ -626,6 +626,39 @@ int devm_drm_dev_init(struct device *parent,
> struct drm_device *dev,
> struct drm_driver *driver);
>
> +void* __devm_drm_dev_alloc(struct device *parent, struct drm_driver *driver,
> + size_t size, size_t offset);
> +
> +/**
> + * devm_drm_dev_alloc - Resource managed allocation of a &drm_device instance
> + * @parent: Parent device object
> + * @driver: DRM driver
> + * @type: the type of the struct which contains struct &drm_device
> + * @member: the name of the &drm_device within @type.
I am confused about the naming here.
devm_ implies we allocate something with a lifetime equal that of a
driver. So when the driver are gone what we allocate is also gone.
Like everythign else devm_ prefixed.
But the lifetime of a drm_device is until the last userspace reference
is gone (final drm_dev_put() is called).
> + *
> + * This allocates and initialize a new DRM device. No device registration is done.
> + * Call drm_dev_register() to advertice the device to user space and register it
> + * with other core subsystems. This should be done last in the device
s/This/Calling drm_dev_register()/ will make this sentence a bit more
explicit.
> + * initialization sequence to make sure userspace can't access an inconsistent
> + * state.
> + *
> + * The initial ref-count of the object is 1. Use drm_dev_get() and
> + * drm_dev_put() to take and drop further ref-counts.
> + *
> + * It is recommended that drivers embed &struct drm_device into their own device
> + * structure.
> + *
> + * Note that this manages the lifetime of the resulting &drm_device
> + * automatically using devres.
Hmm, no this is managed by drmres???
> + * The DRM device initialized with this function is
> + * automatically put on driver detach using drm_dev_put().
> + *
> + * RETURNS:
> + * Pointer to new DRM device, or ERR_PTR on failure.
> + */
> +#define devm_drm_dev_alloc(parent, driver, type, member) \
> + ((type *) __devm_drm_dev_alloc(parent, driver, sizeof(type), \
> + offsetof(type, member)))
> +
> struct drm_device *drm_dev_alloc(struct drm_driver *driver,
> struct device *parent);
> int drm_dev_register(struct drm_device *dev, unsigned long flags);
> --
> 2.25.1
>
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 03/44] drm/device: Deprecate dev_private harder
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-08 7:02 ` Sam Ravnborg
-1 siblings, 0 replies; 262+ messages in thread
From: Sam Ravnborg @ 2020-04-08 7:02 UTC (permalink / raw)
To: Daniel Vetter; +Cc: Daniel Vetter, Intel Graphics Development, DRI Development
On Fri, Apr 03, 2020 at 03:57:47PM +0200, Daniel Vetter wrote:
> We've had lots of conversions to embeddeding, but didn't stop using
> ->dev_private. Which defeats the point of this.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
> ---
> include/drm/drm_device.h | 9 ++++++---
> 1 file changed, 6 insertions(+), 3 deletions(-)
>
> diff --git a/include/drm/drm_device.h b/include/drm/drm_device.h
> index d39132b477dd..a55874db9dd4 100644
> --- a/include/drm/drm_device.h
> +++ b/include/drm/drm_device.h
> @@ -88,9 +88,12 @@ struct drm_device {
> /**
> * @dev_private:
> *
> - * DRM driver private data. Instead of using this pointer it is
> - * recommended that drivers use drm_dev_init() and embed struct
> - * &drm_device in their larger per-device structure.
> + * DRM driver private data. This is deprecated and should be left set to
> + * NULL.
> + *
> + * Instead of using this pointer it is recommended that drivers use
> + * drm_dev_init() and embed struct &drm_device in their larger
> + * per-device structure.
> */
> void *dev_private;
>
> --
> 2.25.1
>
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [Intel-gfx] [PATCH 03/44] drm/device: Deprecate dev_private harder
@ 2020-04-08 7:02 ` Sam Ravnborg
0 siblings, 0 replies; 262+ messages in thread
From: Sam Ravnborg @ 2020-04-08 7:02 UTC (permalink / raw)
To: Daniel Vetter; +Cc: Daniel Vetter, Intel Graphics Development, DRI Development
On Fri, Apr 03, 2020 at 03:57:47PM +0200, Daniel Vetter wrote:
> We've had lots of conversions to embeddeding, but didn't stop using
> ->dev_private. Which defeats the point of this.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
> ---
> include/drm/drm_device.h | 9 ++++++---
> 1 file changed, 6 insertions(+), 3 deletions(-)
>
> diff --git a/include/drm/drm_device.h b/include/drm/drm_device.h
> index d39132b477dd..a55874db9dd4 100644
> --- a/include/drm/drm_device.h
> +++ b/include/drm/drm_device.h
> @@ -88,9 +88,12 @@ struct drm_device {
> /**
> * @dev_private:
> *
> - * DRM driver private data. Instead of using this pointer it is
> - * recommended that drivers use drm_dev_init() and embed struct
> - * &drm_device in their larger per-device structure.
> + * DRM driver private data. This is deprecated and should be left set to
> + * NULL.
> + *
> + * Instead of using this pointer it is recommended that drivers use
> + * drm_dev_init() and embed struct &drm_device in their larger
> + * per-device structure.
> */
> void *dev_private;
>
> --
> 2.25.1
>
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 06/44] drm/vboxvideo: drop DRM_MTRR_WC #define
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-08 7:03 ` Sam Ravnborg
-1 siblings, 0 replies; 262+ messages in thread
From: Sam Ravnborg @ 2020-04-08 7:03 UTC (permalink / raw)
To: Daniel Vetter
Cc: Hans de Goede, Intel Graphics Development, DRI Development,
Daniel Vetter
On Fri, Apr 03, 2020 at 03:57:50PM +0200, Daniel Vetter wrote:
> Doesn't apply to upstream kernels since a rather long time.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Hans de Goede <hdegoede@redhat.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
> ---
> drivers/gpu/drm/vboxvideo/vbox_ttm.c | 12 ------------
> 1 file changed, 12 deletions(-)
>
> diff --git a/drivers/gpu/drm/vboxvideo/vbox_ttm.c b/drivers/gpu/drm/vboxvideo/vbox_ttm.c
> index 976423d0c3cc..f5a06675da43 100644
> --- a/drivers/gpu/drm/vboxvideo/vbox_ttm.c
> +++ b/drivers/gpu/drm/vboxvideo/vbox_ttm.c
> @@ -24,25 +24,13 @@ int vbox_mm_init(struct vbox_private *vbox)
> return ret;
> }
>
> -#ifdef DRM_MTRR_WC
> - vbox->fb_mtrr = drm_mtrr_add(pci_resource_start(dev->pdev, 0),
> - pci_resource_len(dev->pdev, 0),
> - DRM_MTRR_WC);
> -#else
> vbox->fb_mtrr = arch_phys_wc_add(pci_resource_start(dev->pdev, 0),
> pci_resource_len(dev->pdev, 0));
> -#endif
> return 0;
> }
>
> void vbox_mm_fini(struct vbox_private *vbox)
> {
> -#ifdef DRM_MTRR_WC
> - drm_mtrr_del(vbox->fb_mtrr,
> - pci_resource_start(vbox->ddev.pdev, 0),
> - pci_resource_len(vbox->ddev.pdev, 0), DRM_MTRR_WC);
> -#else
> arch_phys_wc_del(vbox->fb_mtrr);
> -#endif
> drm_vram_helper_release_mm(&vbox->ddev);
> }
> --
> 2.25.1
>
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [Intel-gfx] [PATCH 06/44] drm/vboxvideo: drop DRM_MTRR_WC #define
@ 2020-04-08 7:03 ` Sam Ravnborg
0 siblings, 0 replies; 262+ messages in thread
From: Sam Ravnborg @ 2020-04-08 7:03 UTC (permalink / raw)
To: Daniel Vetter; +Cc: Intel Graphics Development, DRI Development, Daniel Vetter
On Fri, Apr 03, 2020 at 03:57:50PM +0200, Daniel Vetter wrote:
> Doesn't apply to upstream kernels since a rather long time.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Hans de Goede <hdegoede@redhat.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
> ---
> drivers/gpu/drm/vboxvideo/vbox_ttm.c | 12 ------------
> 1 file changed, 12 deletions(-)
>
> diff --git a/drivers/gpu/drm/vboxvideo/vbox_ttm.c b/drivers/gpu/drm/vboxvideo/vbox_ttm.c
> index 976423d0c3cc..f5a06675da43 100644
> --- a/drivers/gpu/drm/vboxvideo/vbox_ttm.c
> +++ b/drivers/gpu/drm/vboxvideo/vbox_ttm.c
> @@ -24,25 +24,13 @@ int vbox_mm_init(struct vbox_private *vbox)
> return ret;
> }
>
> -#ifdef DRM_MTRR_WC
> - vbox->fb_mtrr = drm_mtrr_add(pci_resource_start(dev->pdev, 0),
> - pci_resource_len(dev->pdev, 0),
> - DRM_MTRR_WC);
> -#else
> vbox->fb_mtrr = arch_phys_wc_add(pci_resource_start(dev->pdev, 0),
> pci_resource_len(dev->pdev, 0));
> -#endif
> return 0;
> }
>
> void vbox_mm_fini(struct vbox_private *vbox)
> {
> -#ifdef DRM_MTRR_WC
> - drm_mtrr_del(vbox->fb_mtrr,
> - pci_resource_start(vbox->ddev.pdev, 0),
> - pci_resource_len(vbox->ddev.pdev, 0), DRM_MTRR_WC);
> -#else
> arch_phys_wc_del(vbox->fb_mtrr);
> -#endif
> drm_vram_helper_release_mm(&vbox->ddev);
> }
> --
> 2.25.1
>
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 08/44] drm/vboxvideo: Stop using drm_device->dev_private
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-08 7:19 ` Sam Ravnborg
-1 siblings, 0 replies; 262+ messages in thread
From: Sam Ravnborg @ 2020-04-08 7:19 UTC (permalink / raw)
To: Daniel Vetter
Cc: Hans de Goede, Intel Graphics Development, DRI Development,
Daniel Vetter
On Fri, Apr 03, 2020 at 03:57:52PM +0200, Daniel Vetter wrote:
> We use the baseclass pattern here, so lets to the proper (and more
> typesafe) upcasting.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Hans de Goede <hdegoede@redhat.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
As for naming discussed in other mail I had gone for
to_vbox() - as we name the variable assinged vbox whereever we use it.
But no strong feeling as long as we get away from dev_private
and are consistent.
Sam
> ---
> drivers/gpu/drm/vboxvideo/vbox_drv.c | 1 -
> drivers/gpu/drm/vboxvideo/vbox_drv.h | 1 +
> drivers/gpu/drm/vboxvideo/vbox_irq.c | 2 +-
> drivers/gpu/drm/vboxvideo/vbox_mode.c | 10 +++++-----
> 4 files changed, 7 insertions(+), 7 deletions(-)
>
> diff --git a/drivers/gpu/drm/vboxvideo/vbox_drv.c b/drivers/gpu/drm/vboxvideo/vbox_drv.c
> index be0600b22cf5..d34cddd809fd 100644
> --- a/drivers/gpu/drm/vboxvideo/vbox_drv.c
> +++ b/drivers/gpu/drm/vboxvideo/vbox_drv.c
> @@ -52,7 +52,6 @@ static int vbox_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
> return PTR_ERR(vbox);
>
> vbox->ddev.pdev = pdev;
> - vbox->ddev.dev_private = vbox;
> pci_set_drvdata(pdev, vbox);
> mutex_init(&vbox->hw_mutex);
>
> diff --git a/drivers/gpu/drm/vboxvideo/vbox_drv.h b/drivers/gpu/drm/vboxvideo/vbox_drv.h
> index 87421903816c..ac7c2effc46f 100644
> --- a/drivers/gpu/drm/vboxvideo/vbox_drv.h
> +++ b/drivers/gpu/drm/vboxvideo/vbox_drv.h
> @@ -127,6 +127,7 @@ struct vbox_encoder {
> #define to_vbox_crtc(x) container_of(x, struct vbox_crtc, base)
> #define to_vbox_connector(x) container_of(x, struct vbox_connector, base)
> #define to_vbox_encoder(x) container_of(x, struct vbox_encoder, base)
> +#define to_vbox_dev(x) container_of(x, struct vbox_private, ddev)
>
> bool vbox_check_supported(u16 id);
> int vbox_hw_init(struct vbox_private *vbox);
> diff --git a/drivers/gpu/drm/vboxvideo/vbox_irq.c b/drivers/gpu/drm/vboxvideo/vbox_irq.c
> index 16a1e29f5292..631657fa554f 100644
> --- a/drivers/gpu/drm/vboxvideo/vbox_irq.c
> +++ b/drivers/gpu/drm/vboxvideo/vbox_irq.c
> @@ -34,7 +34,7 @@ void vbox_report_hotplug(struct vbox_private *vbox)
> irqreturn_t vbox_irq_handler(int irq, void *arg)
> {
> struct drm_device *dev = (struct drm_device *)arg;
> - struct vbox_private *vbox = (struct vbox_private *)dev->dev_private;
> + struct vbox_private *vbox = to_vbox_dev(dev);
> u32 host_flags = vbox_get_flags(vbox);
>
> if (!(host_flags & HGSMIHOSTFLAGS_IRQ))
> diff --git a/drivers/gpu/drm/vboxvideo/vbox_mode.c b/drivers/gpu/drm/vboxvideo/vbox_mode.c
> index 0883a435e62b..d9a5af62af89 100644
> --- a/drivers/gpu/drm/vboxvideo/vbox_mode.c
> +++ b/drivers/gpu/drm/vboxvideo/vbox_mode.c
> @@ -36,7 +36,7 @@ static void vbox_do_modeset(struct drm_crtc *crtc)
> u16 flags;
> s32 x_offset, y_offset;
>
> - vbox = crtc->dev->dev_private;
> + vbox = to_vbox_dev(crtc->dev);
> width = vbox_crtc->width ? vbox_crtc->width : 640;
> height = vbox_crtc->height ? vbox_crtc->height : 480;
> bpp = fb ? fb->format->cpp[0] * 8 : 32;
> @@ -77,7 +77,7 @@ static void vbox_do_modeset(struct drm_crtc *crtc)
> static int vbox_set_view(struct drm_crtc *crtc)
> {
> struct vbox_crtc *vbox_crtc = to_vbox_crtc(crtc);
> - struct vbox_private *vbox = crtc->dev->dev_private;
> + struct vbox_private *vbox = to_vbox_dev(crtc->dev);
> struct vbva_infoview *p;
>
> /*
> @@ -174,7 +174,7 @@ static void vbox_crtc_set_base_and_mode(struct drm_crtc *crtc,
> int x, int y)
> {
> struct drm_gem_vram_object *gbo = drm_gem_vram_of_gem(fb->obj[0]);
> - struct vbox_private *vbox = crtc->dev->dev_private;
> + struct vbox_private *vbox = to_vbox_dev(crtc->dev);
> struct vbox_crtc *vbox_crtc = to_vbox_crtc(crtc);
> bool needs_modeset = drm_atomic_crtc_needs_modeset(crtc->state);
>
> @@ -272,7 +272,7 @@ static void vbox_primary_atomic_update(struct drm_plane *plane,
> {
> struct drm_crtc *crtc = plane->state->crtc;
> struct drm_framebuffer *fb = plane->state->fb;
> - struct vbox_private *vbox = fb->dev->dev_private;
> + struct vbox_private *vbox = to_vbox_dev(fb->dev);
> struct drm_mode_rect *clips;
> uint32_t num_clips, i;
>
> @@ -704,7 +704,7 @@ static int vbox_get_modes(struct drm_connector *connector)
> int preferred_width, preferred_height;
>
> vbox_connector = to_vbox_connector(connector);
> - vbox = connector->dev->dev_private;
> + vbox = to_vbox_dev(connector->dev);
>
> hgsmi_report_flags_location(vbox->guest_pool, GUEST_HEAP_OFFSET(vbox) +
> HOST_FLAGS_OFFSET);
> --
> 2.25.1
>
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [Intel-gfx] [PATCH 08/44] drm/vboxvideo: Stop using drm_device->dev_private
@ 2020-04-08 7:19 ` Sam Ravnborg
0 siblings, 0 replies; 262+ messages in thread
From: Sam Ravnborg @ 2020-04-08 7:19 UTC (permalink / raw)
To: Daniel Vetter; +Cc: Intel Graphics Development, DRI Development, Daniel Vetter
On Fri, Apr 03, 2020 at 03:57:52PM +0200, Daniel Vetter wrote:
> We use the baseclass pattern here, so lets to the proper (and more
> typesafe) upcasting.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Hans de Goede <hdegoede@redhat.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
As for naming discussed in other mail I had gone for
to_vbox() - as we name the variable assinged vbox whereever we use it.
But no strong feeling as long as we get away from dev_private
and are consistent.
Sam
> ---
> drivers/gpu/drm/vboxvideo/vbox_drv.c | 1 -
> drivers/gpu/drm/vboxvideo/vbox_drv.h | 1 +
> drivers/gpu/drm/vboxvideo/vbox_irq.c | 2 +-
> drivers/gpu/drm/vboxvideo/vbox_mode.c | 10 +++++-----
> 4 files changed, 7 insertions(+), 7 deletions(-)
>
> diff --git a/drivers/gpu/drm/vboxvideo/vbox_drv.c b/drivers/gpu/drm/vboxvideo/vbox_drv.c
> index be0600b22cf5..d34cddd809fd 100644
> --- a/drivers/gpu/drm/vboxvideo/vbox_drv.c
> +++ b/drivers/gpu/drm/vboxvideo/vbox_drv.c
> @@ -52,7 +52,6 @@ static int vbox_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
> return PTR_ERR(vbox);
>
> vbox->ddev.pdev = pdev;
> - vbox->ddev.dev_private = vbox;
> pci_set_drvdata(pdev, vbox);
> mutex_init(&vbox->hw_mutex);
>
> diff --git a/drivers/gpu/drm/vboxvideo/vbox_drv.h b/drivers/gpu/drm/vboxvideo/vbox_drv.h
> index 87421903816c..ac7c2effc46f 100644
> --- a/drivers/gpu/drm/vboxvideo/vbox_drv.h
> +++ b/drivers/gpu/drm/vboxvideo/vbox_drv.h
> @@ -127,6 +127,7 @@ struct vbox_encoder {
> #define to_vbox_crtc(x) container_of(x, struct vbox_crtc, base)
> #define to_vbox_connector(x) container_of(x, struct vbox_connector, base)
> #define to_vbox_encoder(x) container_of(x, struct vbox_encoder, base)
> +#define to_vbox_dev(x) container_of(x, struct vbox_private, ddev)
>
> bool vbox_check_supported(u16 id);
> int vbox_hw_init(struct vbox_private *vbox);
> diff --git a/drivers/gpu/drm/vboxvideo/vbox_irq.c b/drivers/gpu/drm/vboxvideo/vbox_irq.c
> index 16a1e29f5292..631657fa554f 100644
> --- a/drivers/gpu/drm/vboxvideo/vbox_irq.c
> +++ b/drivers/gpu/drm/vboxvideo/vbox_irq.c
> @@ -34,7 +34,7 @@ void vbox_report_hotplug(struct vbox_private *vbox)
> irqreturn_t vbox_irq_handler(int irq, void *arg)
> {
> struct drm_device *dev = (struct drm_device *)arg;
> - struct vbox_private *vbox = (struct vbox_private *)dev->dev_private;
> + struct vbox_private *vbox = to_vbox_dev(dev);
> u32 host_flags = vbox_get_flags(vbox);
>
> if (!(host_flags & HGSMIHOSTFLAGS_IRQ))
> diff --git a/drivers/gpu/drm/vboxvideo/vbox_mode.c b/drivers/gpu/drm/vboxvideo/vbox_mode.c
> index 0883a435e62b..d9a5af62af89 100644
> --- a/drivers/gpu/drm/vboxvideo/vbox_mode.c
> +++ b/drivers/gpu/drm/vboxvideo/vbox_mode.c
> @@ -36,7 +36,7 @@ static void vbox_do_modeset(struct drm_crtc *crtc)
> u16 flags;
> s32 x_offset, y_offset;
>
> - vbox = crtc->dev->dev_private;
> + vbox = to_vbox_dev(crtc->dev);
> width = vbox_crtc->width ? vbox_crtc->width : 640;
> height = vbox_crtc->height ? vbox_crtc->height : 480;
> bpp = fb ? fb->format->cpp[0] * 8 : 32;
> @@ -77,7 +77,7 @@ static void vbox_do_modeset(struct drm_crtc *crtc)
> static int vbox_set_view(struct drm_crtc *crtc)
> {
> struct vbox_crtc *vbox_crtc = to_vbox_crtc(crtc);
> - struct vbox_private *vbox = crtc->dev->dev_private;
> + struct vbox_private *vbox = to_vbox_dev(crtc->dev);
> struct vbva_infoview *p;
>
> /*
> @@ -174,7 +174,7 @@ static void vbox_crtc_set_base_and_mode(struct drm_crtc *crtc,
> int x, int y)
> {
> struct drm_gem_vram_object *gbo = drm_gem_vram_of_gem(fb->obj[0]);
> - struct vbox_private *vbox = crtc->dev->dev_private;
> + struct vbox_private *vbox = to_vbox_dev(crtc->dev);
> struct vbox_crtc *vbox_crtc = to_vbox_crtc(crtc);
> bool needs_modeset = drm_atomic_crtc_needs_modeset(crtc->state);
>
> @@ -272,7 +272,7 @@ static void vbox_primary_atomic_update(struct drm_plane *plane,
> {
> struct drm_crtc *crtc = plane->state->crtc;
> struct drm_framebuffer *fb = plane->state->fb;
> - struct vbox_private *vbox = fb->dev->dev_private;
> + struct vbox_private *vbox = to_vbox_dev(fb->dev);
> struct drm_mode_rect *clips;
> uint32_t num_clips, i;
>
> @@ -704,7 +704,7 @@ static int vbox_get_modes(struct drm_connector *connector)
> int preferred_width, preferred_height;
>
> vbox_connector = to_vbox_connector(connector);
> - vbox = connector->dev->dev_private;
> + vbox = to_vbox_dev(connector->dev);
>
> hgsmi_report_flags_location(vbox->guest_pool, GUEST_HEAP_OFFSET(vbox) +
> HOST_FLAGS_OFFSET);
> --
> 2.25.1
>
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 09/44] drm/vboxvidoe: use managed pci functions
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-08 7:21 ` Sam Ravnborg
-1 siblings, 0 replies; 262+ messages in thread
From: Sam Ravnborg @ 2020-04-08 7:21 UTC (permalink / raw)
To: Daniel Vetter
Cc: Hans de Goede, Intel Graphics Development, DRI Development,
Daniel Vetter
On Fri, Apr 03, 2020 at 03:57:53PM +0200, Daniel Vetter wrote:
> Allows us to drop the cleanup code on the floor.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Hans de Goede <hdegoede@redhat.com>
With this change we avoid calling pci_disable_device()
twise in case vbox_mm_init() fails.
Once in vbox_hw_fini() and once in the error path.
Which is just a small extra bonus.
Acked-by: Sam Ravnborg <sam@ravnborg.org>
> ---
> drivers/gpu/drm/vboxvideo/vbox_drv.c | 6 ++----
> drivers/gpu/drm/vboxvideo/vbox_main.c | 7 +------
> 2 files changed, 3 insertions(+), 10 deletions(-)
>
> diff --git a/drivers/gpu/drm/vboxvideo/vbox_drv.c b/drivers/gpu/drm/vboxvideo/vbox_drv.c
> index d34cddd809fd..c80695c2f6c0 100644
> --- a/drivers/gpu/drm/vboxvideo/vbox_drv.c
> +++ b/drivers/gpu/drm/vboxvideo/vbox_drv.c
> @@ -55,13 +55,13 @@ static int vbox_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
> pci_set_drvdata(pdev, vbox);
> mutex_init(&vbox->hw_mutex);
>
> - ret = pci_enable_device(pdev);
> + ret = pcim_enable_device(pdev);
> if (ret)
> return ret;
>
> ret = vbox_hw_init(vbox);
> if (ret)
> - goto err_pci_disable;
> + return ret;
>
> ret = vbox_mm_init(vbox);
> if (ret)
> @@ -93,8 +93,6 @@ static int vbox_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
> vbox_mm_fini(vbox);
> err_hw_fini:
> vbox_hw_fini(vbox);
> -err_pci_disable:
> - pci_disable_device(pdev);
> return ret;
> }
>
> diff --git a/drivers/gpu/drm/vboxvideo/vbox_main.c b/drivers/gpu/drm/vboxvideo/vbox_main.c
> index 9dcab115a261..1336ab9795fc 100644
> --- a/drivers/gpu/drm/vboxvideo/vbox_main.c
> +++ b/drivers/gpu/drm/vboxvideo/vbox_main.c
> @@ -71,8 +71,6 @@ static void vbox_accel_fini(struct vbox_private *vbox)
>
> for (i = 0; i < vbox->num_crtcs; ++i)
> vbva_disable(&vbox->vbva_info[i], vbox->guest_pool, i);
> -
> - pci_iounmap(vbox->ddev.pdev, vbox->vbva_buffers);
> }
>
> /* Do we support the 4.3 plus mode hint reporting interface? */
> @@ -125,7 +123,7 @@ int vbox_hw_init(struct vbox_private *vbox)
> /* Create guest-heap mem-pool use 2^4 = 16 byte chunks */
> vbox->guest_pool = gen_pool_create(4, -1);
> if (!vbox->guest_pool)
> - goto err_unmap_guest_heap;
> + return -ENOMEM;
>
> ret = gen_pool_add_virt(vbox->guest_pool,
> (unsigned long)vbox->guest_heap,
> @@ -168,8 +166,6 @@ int vbox_hw_init(struct vbox_private *vbox)
>
> err_destroy_guest_pool:
> gen_pool_destroy(vbox->guest_pool);
> -err_unmap_guest_heap:
> - pci_iounmap(vbox->ddev.pdev, vbox->guest_heap);
> return ret;
> }
>
> @@ -177,5 +173,4 @@ void vbox_hw_fini(struct vbox_private *vbox)
> {
> vbox_accel_fini(vbox);
> gen_pool_destroy(vbox->guest_pool);
> - pci_iounmap(vbox->ddev.pdev, vbox->guest_heap);
> }
> --
> 2.25.1
>
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [Intel-gfx] [PATCH 09/44] drm/vboxvidoe: use managed pci functions
@ 2020-04-08 7:21 ` Sam Ravnborg
0 siblings, 0 replies; 262+ messages in thread
From: Sam Ravnborg @ 2020-04-08 7:21 UTC (permalink / raw)
To: Daniel Vetter; +Cc: Intel Graphics Development, DRI Development, Daniel Vetter
On Fri, Apr 03, 2020 at 03:57:53PM +0200, Daniel Vetter wrote:
> Allows us to drop the cleanup code on the floor.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Hans de Goede <hdegoede@redhat.com>
With this change we avoid calling pci_disable_device()
twise in case vbox_mm_init() fails.
Once in vbox_hw_fini() and once in the error path.
Which is just a small extra bonus.
Acked-by: Sam Ravnborg <sam@ravnborg.org>
> ---
> drivers/gpu/drm/vboxvideo/vbox_drv.c | 6 ++----
> drivers/gpu/drm/vboxvideo/vbox_main.c | 7 +------
> 2 files changed, 3 insertions(+), 10 deletions(-)
>
> diff --git a/drivers/gpu/drm/vboxvideo/vbox_drv.c b/drivers/gpu/drm/vboxvideo/vbox_drv.c
> index d34cddd809fd..c80695c2f6c0 100644
> --- a/drivers/gpu/drm/vboxvideo/vbox_drv.c
> +++ b/drivers/gpu/drm/vboxvideo/vbox_drv.c
> @@ -55,13 +55,13 @@ static int vbox_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
> pci_set_drvdata(pdev, vbox);
> mutex_init(&vbox->hw_mutex);
>
> - ret = pci_enable_device(pdev);
> + ret = pcim_enable_device(pdev);
> if (ret)
> return ret;
>
> ret = vbox_hw_init(vbox);
> if (ret)
> - goto err_pci_disable;
> + return ret;
>
> ret = vbox_mm_init(vbox);
> if (ret)
> @@ -93,8 +93,6 @@ static int vbox_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
> vbox_mm_fini(vbox);
> err_hw_fini:
> vbox_hw_fini(vbox);
> -err_pci_disable:
> - pci_disable_device(pdev);
> return ret;
> }
>
> diff --git a/drivers/gpu/drm/vboxvideo/vbox_main.c b/drivers/gpu/drm/vboxvideo/vbox_main.c
> index 9dcab115a261..1336ab9795fc 100644
> --- a/drivers/gpu/drm/vboxvideo/vbox_main.c
> +++ b/drivers/gpu/drm/vboxvideo/vbox_main.c
> @@ -71,8 +71,6 @@ static void vbox_accel_fini(struct vbox_private *vbox)
>
> for (i = 0; i < vbox->num_crtcs; ++i)
> vbva_disable(&vbox->vbva_info[i], vbox->guest_pool, i);
> -
> - pci_iounmap(vbox->ddev.pdev, vbox->vbva_buffers);
> }
>
> /* Do we support the 4.3 plus mode hint reporting interface? */
> @@ -125,7 +123,7 @@ int vbox_hw_init(struct vbox_private *vbox)
> /* Create guest-heap mem-pool use 2^4 = 16 byte chunks */
> vbox->guest_pool = gen_pool_create(4, -1);
> if (!vbox->guest_pool)
> - goto err_unmap_guest_heap;
> + return -ENOMEM;
>
> ret = gen_pool_add_virt(vbox->guest_pool,
> (unsigned long)vbox->guest_heap,
> @@ -168,8 +166,6 @@ int vbox_hw_init(struct vbox_private *vbox)
>
> err_destroy_guest_pool:
> gen_pool_destroy(vbox->guest_pool);
> -err_unmap_guest_heap:
> - pci_iounmap(vbox->ddev.pdev, vbox->guest_heap);
> return ret;
> }
>
> @@ -177,5 +173,4 @@ void vbox_hw_fini(struct vbox_private *vbox)
> {
> vbox_accel_fini(vbox);
> gen_pool_destroy(vbox->guest_pool);
> - pci_iounmap(vbox->ddev.pdev, vbox->guest_heap);
> }
> --
> 2.25.1
>
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 10/44] drm/vboxvideo: Use devm_gen_pool_create
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-08 7:24 ` Sam Ravnborg
-1 siblings, 0 replies; 262+ messages in thread
From: Sam Ravnborg @ 2020-04-08 7:24 UTC (permalink / raw)
To: Daniel Vetter
Cc: Hans de Goede, Intel Graphics Development, DRI Development,
Daniel Vetter
On Fri, Apr 03, 2020 at 03:57:54PM +0200, Daniel Vetter wrote:
> Aside from deleting all the cleanup code we're now also setting a name
> for the pool
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Hans de Goede <hdegoede@redhat.com>
Nice cleanup.
Acked-by: Sam Ravnborg <sam@ravnborg.org>
> ---
> drivers/gpu/drm/vboxvideo/vbox_main.c | 22 ++++++++--------------
> 1 file changed, 8 insertions(+), 14 deletions(-)
>
> diff --git a/drivers/gpu/drm/vboxvideo/vbox_main.c b/drivers/gpu/drm/vboxvideo/vbox_main.c
> index 1336ab9795fc..d68d9bad7674 100644
> --- a/drivers/gpu/drm/vboxvideo/vbox_main.c
> +++ b/drivers/gpu/drm/vboxvideo/vbox_main.c
> @@ -121,7 +121,8 @@ int vbox_hw_init(struct vbox_private *vbox)
> return -ENOMEM;
>
> /* Create guest-heap mem-pool use 2^4 = 16 byte chunks */
> - vbox->guest_pool = gen_pool_create(4, -1);
> + vbox->guest_pool = devm_gen_pool_create(vbox->ddev.dev, 4, -1,
> + "vboxvideo-accel");
> if (!vbox->guest_pool)
> return -ENOMEM;
>
> @@ -130,12 +131,12 @@ int vbox_hw_init(struct vbox_private *vbox)
> GUEST_HEAP_OFFSET(vbox),
> GUEST_HEAP_USABLE_SIZE, -1);
> if (ret)
> - goto err_destroy_guest_pool;
> + return ret;
>
> ret = hgsmi_test_query_conf(vbox->guest_pool);
> if (ret) {
> DRM_ERROR("vboxvideo: hgsmi_test_query_conf failed\n");
> - goto err_destroy_guest_pool;
> + return ret;
> }
>
> /* Reduce available VRAM size to reflect the guest heap. */
> @@ -147,30 +148,23 @@ int vbox_hw_init(struct vbox_private *vbox)
>
> if (!have_hgsmi_mode_hints(vbox)) {
> ret = -ENOTSUPP;
> - goto err_destroy_guest_pool;
> + return ret;
> }
>
> vbox->last_mode_hints = devm_kcalloc(vbox->ddev.dev, vbox->num_crtcs,
> sizeof(struct vbva_modehint),
> GFP_KERNEL);
> - if (!vbox->last_mode_hints) {
> - ret = -ENOMEM;
> - goto err_destroy_guest_pool;
> - }
> + if (!vbox->last_mode_hints)
> + return -ENOMEM;
>
> ret = vbox_accel_init(vbox);
> if (ret)
> - goto err_destroy_guest_pool;
> + return ret;
>
> return 0;
> -
> -err_destroy_guest_pool:
> - gen_pool_destroy(vbox->guest_pool);
> - return ret;
> }
>
> void vbox_hw_fini(struct vbox_private *vbox)
> {
> vbox_accel_fini(vbox);
> - gen_pool_destroy(vbox->guest_pool);
> }
> --
> 2.25.1
>
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [Intel-gfx] [PATCH 10/44] drm/vboxvideo: Use devm_gen_pool_create
@ 2020-04-08 7:24 ` Sam Ravnborg
0 siblings, 0 replies; 262+ messages in thread
From: Sam Ravnborg @ 2020-04-08 7:24 UTC (permalink / raw)
To: Daniel Vetter; +Cc: Intel Graphics Development, DRI Development, Daniel Vetter
On Fri, Apr 03, 2020 at 03:57:54PM +0200, Daniel Vetter wrote:
> Aside from deleting all the cleanup code we're now also setting a name
> for the pool
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Hans de Goede <hdegoede@redhat.com>
Nice cleanup.
Acked-by: Sam Ravnborg <sam@ravnborg.org>
> ---
> drivers/gpu/drm/vboxvideo/vbox_main.c | 22 ++++++++--------------
> 1 file changed, 8 insertions(+), 14 deletions(-)
>
> diff --git a/drivers/gpu/drm/vboxvideo/vbox_main.c b/drivers/gpu/drm/vboxvideo/vbox_main.c
> index 1336ab9795fc..d68d9bad7674 100644
> --- a/drivers/gpu/drm/vboxvideo/vbox_main.c
> +++ b/drivers/gpu/drm/vboxvideo/vbox_main.c
> @@ -121,7 +121,8 @@ int vbox_hw_init(struct vbox_private *vbox)
> return -ENOMEM;
>
> /* Create guest-heap mem-pool use 2^4 = 16 byte chunks */
> - vbox->guest_pool = gen_pool_create(4, -1);
> + vbox->guest_pool = devm_gen_pool_create(vbox->ddev.dev, 4, -1,
> + "vboxvideo-accel");
> if (!vbox->guest_pool)
> return -ENOMEM;
>
> @@ -130,12 +131,12 @@ int vbox_hw_init(struct vbox_private *vbox)
> GUEST_HEAP_OFFSET(vbox),
> GUEST_HEAP_USABLE_SIZE, -1);
> if (ret)
> - goto err_destroy_guest_pool;
> + return ret;
>
> ret = hgsmi_test_query_conf(vbox->guest_pool);
> if (ret) {
> DRM_ERROR("vboxvideo: hgsmi_test_query_conf failed\n");
> - goto err_destroy_guest_pool;
> + return ret;
> }
>
> /* Reduce available VRAM size to reflect the guest heap. */
> @@ -147,30 +148,23 @@ int vbox_hw_init(struct vbox_private *vbox)
>
> if (!have_hgsmi_mode_hints(vbox)) {
> ret = -ENOTSUPP;
> - goto err_destroy_guest_pool;
> + return ret;
> }
>
> vbox->last_mode_hints = devm_kcalloc(vbox->ddev.dev, vbox->num_crtcs,
> sizeof(struct vbva_modehint),
> GFP_KERNEL);
> - if (!vbox->last_mode_hints) {
> - ret = -ENOMEM;
> - goto err_destroy_guest_pool;
> - }
> + if (!vbox->last_mode_hints)
> + return -ENOMEM;
>
> ret = vbox_accel_init(vbox);
> if (ret)
> - goto err_destroy_guest_pool;
> + return ret;
>
> return 0;
> -
> -err_destroy_guest_pool:
> - gen_pool_destroy(vbox->guest_pool);
> - return ret;
> }
>
> void vbox_hw_fini(struct vbox_private *vbox)
> {
> vbox_accel_fini(vbox);
> - gen_pool_destroy(vbox->guest_pool);
> }
> --
> 2.25.1
>
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 14/44] drm/v3d: Delete v3d_dev->pdev
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-08 7:27 ` Sam Ravnborg
-1 siblings, 0 replies; 262+ messages in thread
From: Sam Ravnborg @ 2020-04-08 7:27 UTC (permalink / raw)
To: Daniel Vetter; +Cc: Daniel Vetter, Intel Graphics Development, DRI Development
Hi Daniel.
On Fri, Apr 03, 2020 at 03:57:58PM +0200, Daniel Vetter wrote:
> We already have it in v3d_dev->drm.dev with zero additional pointer
> chasing. Personally I don't like duplicated pointers like this
> because:
> - reviewers need to check whether the pointer is for the same or
> different objects if there's multiple
> - compilers have an easier time too
>
> To avoid having to pull in some big headers I implemented the casting
> function as a macro instead of a static inline.
Hmm...
> Typechecking thanks to
> container_of still assured.
>
> But also a bit a bikeshed, so feel free to ignore.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Eric Anholt <eric@anholt.net>
This and patch 13 has same subject - confusing.
Sam
> ---
> drivers/gpu/drm/v3d/v3d_drv.c | 3 +--
> drivers/gpu/drm/v3d/v3d_drv.h | 3 ++-
> drivers/gpu/drm/v3d/v3d_irq.c | 8 +++++---
> 3 files changed, 8 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/gpu/drm/v3d/v3d_drv.c b/drivers/gpu/drm/v3d/v3d_drv.c
> index 37cb880f2826..82a7dfdd14c2 100644
> --- a/drivers/gpu/drm/v3d/v3d_drv.c
> +++ b/drivers/gpu/drm/v3d/v3d_drv.c
> @@ -235,7 +235,7 @@ static int
> map_regs(struct v3d_dev *v3d, void __iomem **regs, const char *name)
> {
> struct resource *res =
> - platform_get_resource_byname(v3d->pdev, IORESOURCE_MEM, name);
> + platform_get_resource_byname(v3d_to_pdev(v3d), IORESOURCE_MEM, name);
>
> *regs = devm_ioremap_resource(v3d->drm.dev, res);
> return PTR_ERR_OR_ZERO(*regs);
> @@ -255,7 +255,6 @@ static int v3d_platform_drm_probe(struct platform_device *pdev)
> if (IS_ERR(v3d))
> return PTR_ERR(v3d);
>
> - v3d->pdev = pdev;
> drm = &v3d->drm;
>
> platform_set_drvdata(pdev, drm);
> diff --git a/drivers/gpu/drm/v3d/v3d_drv.h b/drivers/gpu/drm/v3d/v3d_drv.h
> index 4d2d1f2fe1af..935f23b524b2 100644
> --- a/drivers/gpu/drm/v3d/v3d_drv.h
> +++ b/drivers/gpu/drm/v3d/v3d_drv.h
> @@ -46,7 +46,6 @@ struct v3d_dev {
> int ver;
> bool single_irq_line;
>
> - struct platform_device *pdev;
> void __iomem *hub_regs;
> void __iomem *core_regs[3];
> void __iomem *bridge_regs;
> @@ -128,6 +127,8 @@ v3d_has_csd(struct v3d_dev *v3d)
> return v3d->ver >= 41;
> }
>
> +#define v3d_to_pdev(v3d) to_platform_device(v3d->drm.dev)
> +
> /* The per-fd struct, which tracks the MMU mappings. */
> struct v3d_file_priv {
> struct v3d_dev *v3d;
> diff --git a/drivers/gpu/drm/v3d/v3d_irq.c b/drivers/gpu/drm/v3d/v3d_irq.c
> index f4ce6d057c90..51b65263c657 100644
> --- a/drivers/gpu/drm/v3d/v3d_irq.c
> +++ b/drivers/gpu/drm/v3d/v3d_irq.c
> @@ -217,7 +217,7 @@ v3d_irq_init(struct v3d_dev *v3d)
> V3D_CORE_WRITE(core, V3D_CTL_INT_CLR, V3D_CORE_IRQS);
> V3D_WRITE(V3D_HUB_INT_CLR, V3D_HUB_IRQS);
>
> - irq1 = platform_get_irq(v3d->pdev, 1);
> + irq1 = platform_get_irq(v3d_to_pdev(v3d), 1);
> if (irq1 == -EPROBE_DEFER)
> return irq1;
> if (irq1 > 0) {
> @@ -226,7 +226,8 @@ v3d_irq_init(struct v3d_dev *v3d)
> "v3d_core0", v3d);
> if (ret)
> goto fail;
> - ret = devm_request_irq(v3d->drm.dev, platform_get_irq(v3d->pdev, 0),
> + ret = devm_request_irq(v3d->drm.dev,
> + platform_get_irq(v3d_to_pdev(v3d), 0),
> v3d_hub_irq, IRQF_SHARED,
> "v3d_hub", v3d);
> if (ret)
> @@ -234,7 +235,8 @@ v3d_irq_init(struct v3d_dev *v3d)
> } else {
> v3d->single_irq_line = true;
>
> - ret = devm_request_irq(v3d->drm.dev, platform_get_irq(v3d->pdev, 0),
> + ret = devm_request_irq(v3d->drm.dev,
> + platform_get_irq(v3d_to_pdev(v3d), 0),
> v3d_irq, IRQF_SHARED,
> "v3d", v3d);
> if (ret)
> --
> 2.25.1
>
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [Intel-gfx] [PATCH 14/44] drm/v3d: Delete v3d_dev->pdev
@ 2020-04-08 7:27 ` Sam Ravnborg
0 siblings, 0 replies; 262+ messages in thread
From: Sam Ravnborg @ 2020-04-08 7:27 UTC (permalink / raw)
To: Daniel Vetter; +Cc: Daniel Vetter, Intel Graphics Development, DRI Development
Hi Daniel.
On Fri, Apr 03, 2020 at 03:57:58PM +0200, Daniel Vetter wrote:
> We already have it in v3d_dev->drm.dev with zero additional pointer
> chasing. Personally I don't like duplicated pointers like this
> because:
> - reviewers need to check whether the pointer is for the same or
> different objects if there's multiple
> - compilers have an easier time too
>
> To avoid having to pull in some big headers I implemented the casting
> function as a macro instead of a static inline.
Hmm...
> Typechecking thanks to
> container_of still assured.
>
> But also a bit a bikeshed, so feel free to ignore.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Eric Anholt <eric@anholt.net>
This and patch 13 has same subject - confusing.
Sam
> ---
> drivers/gpu/drm/v3d/v3d_drv.c | 3 +--
> drivers/gpu/drm/v3d/v3d_drv.h | 3 ++-
> drivers/gpu/drm/v3d/v3d_irq.c | 8 +++++---
> 3 files changed, 8 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/gpu/drm/v3d/v3d_drv.c b/drivers/gpu/drm/v3d/v3d_drv.c
> index 37cb880f2826..82a7dfdd14c2 100644
> --- a/drivers/gpu/drm/v3d/v3d_drv.c
> +++ b/drivers/gpu/drm/v3d/v3d_drv.c
> @@ -235,7 +235,7 @@ static int
> map_regs(struct v3d_dev *v3d, void __iomem **regs, const char *name)
> {
> struct resource *res =
> - platform_get_resource_byname(v3d->pdev, IORESOURCE_MEM, name);
> + platform_get_resource_byname(v3d_to_pdev(v3d), IORESOURCE_MEM, name);
>
> *regs = devm_ioremap_resource(v3d->drm.dev, res);
> return PTR_ERR_OR_ZERO(*regs);
> @@ -255,7 +255,6 @@ static int v3d_platform_drm_probe(struct platform_device *pdev)
> if (IS_ERR(v3d))
> return PTR_ERR(v3d);
>
> - v3d->pdev = pdev;
> drm = &v3d->drm;
>
> platform_set_drvdata(pdev, drm);
> diff --git a/drivers/gpu/drm/v3d/v3d_drv.h b/drivers/gpu/drm/v3d/v3d_drv.h
> index 4d2d1f2fe1af..935f23b524b2 100644
> --- a/drivers/gpu/drm/v3d/v3d_drv.h
> +++ b/drivers/gpu/drm/v3d/v3d_drv.h
> @@ -46,7 +46,6 @@ struct v3d_dev {
> int ver;
> bool single_irq_line;
>
> - struct platform_device *pdev;
> void __iomem *hub_regs;
> void __iomem *core_regs[3];
> void __iomem *bridge_regs;
> @@ -128,6 +127,8 @@ v3d_has_csd(struct v3d_dev *v3d)
> return v3d->ver >= 41;
> }
>
> +#define v3d_to_pdev(v3d) to_platform_device(v3d->drm.dev)
> +
> /* The per-fd struct, which tracks the MMU mappings. */
> struct v3d_file_priv {
> struct v3d_dev *v3d;
> diff --git a/drivers/gpu/drm/v3d/v3d_irq.c b/drivers/gpu/drm/v3d/v3d_irq.c
> index f4ce6d057c90..51b65263c657 100644
> --- a/drivers/gpu/drm/v3d/v3d_irq.c
> +++ b/drivers/gpu/drm/v3d/v3d_irq.c
> @@ -217,7 +217,7 @@ v3d_irq_init(struct v3d_dev *v3d)
> V3D_CORE_WRITE(core, V3D_CTL_INT_CLR, V3D_CORE_IRQS);
> V3D_WRITE(V3D_HUB_INT_CLR, V3D_HUB_IRQS);
>
> - irq1 = platform_get_irq(v3d->pdev, 1);
> + irq1 = platform_get_irq(v3d_to_pdev(v3d), 1);
> if (irq1 == -EPROBE_DEFER)
> return irq1;
> if (irq1 > 0) {
> @@ -226,7 +226,8 @@ v3d_irq_init(struct v3d_dev *v3d)
> "v3d_core0", v3d);
> if (ret)
> goto fail;
> - ret = devm_request_irq(v3d->drm.dev, platform_get_irq(v3d->pdev, 0),
> + ret = devm_request_irq(v3d->drm.dev,
> + platform_get_irq(v3d_to_pdev(v3d), 0),
> v3d_hub_irq, IRQF_SHARED,
> "v3d_hub", v3d);
> if (ret)
> @@ -234,7 +235,8 @@ v3d_irq_init(struct v3d_dev *v3d)
> } else {
> v3d->single_irq_line = true;
>
> - ret = devm_request_irq(v3d->drm.dev, platform_get_irq(v3d->pdev, 0),
> + ret = devm_request_irq(v3d->drm.dev,
> + platform_get_irq(v3d_to_pdev(v3d), 0),
> v3d_irq, IRQF_SHARED,
> "v3d", v3d);
> if (ret)
> --
> 2.25.1
>
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 16/44] drm/udl: don't set drm_device->dev_private
2020-04-03 13:58 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-08 7:29 ` Sam Ravnborg
-1 siblings, 0 replies; 262+ messages in thread
From: Sam Ravnborg @ 2020-04-08 7:29 UTC (permalink / raw)
To: Daniel Vetter
Cc: Gerd Hoffmann, Intel Graphics Development, Emil Velikov,
José Roberto de Souza, Alexios Zavras, DRI Development,
Thomas Zimmermann, Dave Airlie, Daniel Vetter, Thomas Gleixner,
Sean Paul, Allison Randal, Laurent Pinchart
On Fri, Apr 03, 2020 at 03:58:00PM +0200, Daniel Vetter wrote:
> We're mostly there already, just a handful of places that didn't use
> the to_udl container_of cast. To make sure no new appear, don't set
> ->dev_private.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Dave Airlie <airlied@redhat.com>
> Cc: Sean Paul <sean@poorly.run>
> Cc: Emil Velikov <emil.l.velikov@gmail.com>
> Cc: Thomas Zimmermann <tzimmermann@suse.de>
> Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
> Cc: Alexios Zavras <alexios.zavras@intel.com>
> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
> Cc: Thomas Gleixner <tglx@linutronix.de>
> Cc: "José Roberto de Souza" <jose.souza@intel.com>
> Cc: Sam Ravnborg <sam@ravnborg.org>
> Cc: Gerd Hoffmann <kraxel@redhat.com>
> Cc: Allison Randal <allison@lohutok.net>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
> ---
> drivers/gpu/drm/udl/udl_connector.c | 4 ++--
> drivers/gpu/drm/udl/udl_drv.c | 1 -
> drivers/gpu/drm/udl/udl_modeset.c | 6 +++---
> 3 files changed, 5 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/gpu/drm/udl/udl_connector.c b/drivers/gpu/drm/udl/udl_connector.c
> index 0afdfb0d1fe1..cdc1c42e1669 100644
> --- a/drivers/gpu/drm/udl/udl_connector.c
> +++ b/drivers/gpu/drm/udl/udl_connector.c
> @@ -59,7 +59,7 @@ static int udl_get_modes(struct drm_connector *connector)
> static enum drm_mode_status udl_mode_valid(struct drm_connector *connector,
> struct drm_display_mode *mode)
> {
> - struct udl_device *udl = connector->dev->dev_private;
> + struct udl_device *udl = to_udl(connector->dev);
> if (!udl->sku_pixel_limit)
> return 0;
>
> @@ -72,7 +72,7 @@ static enum drm_mode_status udl_mode_valid(struct drm_connector *connector,
> static enum drm_connector_status
> udl_detect(struct drm_connector *connector, bool force)
> {
> - struct udl_device *udl = connector->dev->dev_private;
> + struct udl_device *udl = to_udl(connector->dev);
> struct udl_drm_connector *udl_connector =
> container_of(connector,
> struct udl_drm_connector,
> diff --git a/drivers/gpu/drm/udl/udl_drv.c b/drivers/gpu/drm/udl/udl_drv.c
> index 4ba5149fdd57..126545428895 100644
> --- a/drivers/gpu/drm/udl/udl_drv.c
> +++ b/drivers/gpu/drm/udl/udl_drv.c
> @@ -63,7 +63,6 @@ static struct udl_device *udl_driver_create(struct usb_interface *interface)
> return udl;
>
> udl->udev = udev;
> - udl->drm.dev_private = udl;
>
> r = udl_init(udl);
> if (r)
> diff --git a/drivers/gpu/drm/udl/udl_modeset.c b/drivers/gpu/drm/udl/udl_modeset.c
> index 8cad01f3d163..99518a826435 100644
> --- a/drivers/gpu/drm/udl/udl_modeset.c
> +++ b/drivers/gpu/drm/udl/udl_modeset.c
> @@ -215,7 +215,7 @@ static char *udl_dummy_render(char *wrptr)
> static int udl_crtc_write_mode_to_hw(struct drm_crtc *crtc)
> {
> struct drm_device *dev = crtc->dev;
> - struct udl_device *udl = dev->dev_private;
> + struct udl_device *udl = to_udl(dev);
> struct urb *urb;
> char *buf;
> int retval;
> @@ -369,7 +369,7 @@ udl_simple_display_pipe_enable(struct drm_simple_display_pipe *pipe,
> struct drm_crtc *crtc = &pipe->crtc;
> struct drm_device *dev = crtc->dev;
> struct drm_framebuffer *fb = plane_state->fb;
> - struct udl_device *udl = dev->dev_private;
> + struct udl_device *udl = to_udl(dev);
> struct drm_display_mode *mode = &crtc_state->mode;
> char *buf;
> char *wrptr;
> @@ -464,7 +464,7 @@ static const struct drm_mode_config_funcs udl_mode_funcs = {
> int udl_modeset_init(struct drm_device *dev)
> {
> size_t format_count = ARRAY_SIZE(udl_simple_display_pipe_formats);
> - struct udl_device *udl = dev->dev_private;
> + struct udl_device *udl = to_udl(dev);
> struct drm_connector *connector;
> int ret;
>
> --
> 2.25.1
>
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [Intel-gfx] [PATCH 16/44] drm/udl: don't set drm_device->dev_private
@ 2020-04-08 7:29 ` Sam Ravnborg
0 siblings, 0 replies; 262+ messages in thread
From: Sam Ravnborg @ 2020-04-08 7:29 UTC (permalink / raw)
To: Daniel Vetter
Cc: Gerd Hoffmann, Intel Graphics Development, Alexios Zavras,
DRI Development, Thomas Zimmermann, Dave Airlie, Daniel Vetter,
Thomas Gleixner, Allison Randal, Laurent Pinchart
On Fri, Apr 03, 2020 at 03:58:00PM +0200, Daniel Vetter wrote:
> We're mostly there already, just a handful of places that didn't use
> the to_udl container_of cast. To make sure no new appear, don't set
> ->dev_private.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Dave Airlie <airlied@redhat.com>
> Cc: Sean Paul <sean@poorly.run>
> Cc: Emil Velikov <emil.l.velikov@gmail.com>
> Cc: Thomas Zimmermann <tzimmermann@suse.de>
> Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
> Cc: Alexios Zavras <alexios.zavras@intel.com>
> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
> Cc: Thomas Gleixner <tglx@linutronix.de>
> Cc: "José Roberto de Souza" <jose.souza@intel.com>
> Cc: Sam Ravnborg <sam@ravnborg.org>
> Cc: Gerd Hoffmann <kraxel@redhat.com>
> Cc: Allison Randal <allison@lohutok.net>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
> ---
> drivers/gpu/drm/udl/udl_connector.c | 4 ++--
> drivers/gpu/drm/udl/udl_drv.c | 1 -
> drivers/gpu/drm/udl/udl_modeset.c | 6 +++---
> 3 files changed, 5 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/gpu/drm/udl/udl_connector.c b/drivers/gpu/drm/udl/udl_connector.c
> index 0afdfb0d1fe1..cdc1c42e1669 100644
> --- a/drivers/gpu/drm/udl/udl_connector.c
> +++ b/drivers/gpu/drm/udl/udl_connector.c
> @@ -59,7 +59,7 @@ static int udl_get_modes(struct drm_connector *connector)
> static enum drm_mode_status udl_mode_valid(struct drm_connector *connector,
> struct drm_display_mode *mode)
> {
> - struct udl_device *udl = connector->dev->dev_private;
> + struct udl_device *udl = to_udl(connector->dev);
> if (!udl->sku_pixel_limit)
> return 0;
>
> @@ -72,7 +72,7 @@ static enum drm_mode_status udl_mode_valid(struct drm_connector *connector,
> static enum drm_connector_status
> udl_detect(struct drm_connector *connector, bool force)
> {
> - struct udl_device *udl = connector->dev->dev_private;
> + struct udl_device *udl = to_udl(connector->dev);
> struct udl_drm_connector *udl_connector =
> container_of(connector,
> struct udl_drm_connector,
> diff --git a/drivers/gpu/drm/udl/udl_drv.c b/drivers/gpu/drm/udl/udl_drv.c
> index 4ba5149fdd57..126545428895 100644
> --- a/drivers/gpu/drm/udl/udl_drv.c
> +++ b/drivers/gpu/drm/udl/udl_drv.c
> @@ -63,7 +63,6 @@ static struct udl_device *udl_driver_create(struct usb_interface *interface)
> return udl;
>
> udl->udev = udev;
> - udl->drm.dev_private = udl;
>
> r = udl_init(udl);
> if (r)
> diff --git a/drivers/gpu/drm/udl/udl_modeset.c b/drivers/gpu/drm/udl/udl_modeset.c
> index 8cad01f3d163..99518a826435 100644
> --- a/drivers/gpu/drm/udl/udl_modeset.c
> +++ b/drivers/gpu/drm/udl/udl_modeset.c
> @@ -215,7 +215,7 @@ static char *udl_dummy_render(char *wrptr)
> static int udl_crtc_write_mode_to_hw(struct drm_crtc *crtc)
> {
> struct drm_device *dev = crtc->dev;
> - struct udl_device *udl = dev->dev_private;
> + struct udl_device *udl = to_udl(dev);
> struct urb *urb;
> char *buf;
> int retval;
> @@ -369,7 +369,7 @@ udl_simple_display_pipe_enable(struct drm_simple_display_pipe *pipe,
> struct drm_crtc *crtc = &pipe->crtc;
> struct drm_device *dev = crtc->dev;
> struct drm_framebuffer *fb = plane_state->fb;
> - struct udl_device *udl = dev->dev_private;
> + struct udl_device *udl = to_udl(dev);
> struct drm_display_mode *mode = &crtc_state->mode;
> char *buf;
> char *wrptr;
> @@ -464,7 +464,7 @@ static const struct drm_mode_config_funcs udl_mode_funcs = {
> int udl_modeset_init(struct drm_device *dev)
> {
> size_t format_count = ARRAY_SIZE(udl_simple_display_pipe_formats);
> - struct udl_device *udl = dev->dev_private;
> + struct udl_device *udl = to_udl(dev);
> struct drm_connector *connector;
> int ret;
>
> --
> 2.25.1
>
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 27/44] drm/tidss: Use devm_drm_dev_alloc
2020-04-03 13:58 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-08 7:52 ` Sam Ravnborg
-1 siblings, 0 replies; 262+ messages in thread
From: Sam Ravnborg @ 2020-04-08 7:52 UTC (permalink / raw)
To: Daniel Vetter
Cc: Daniel Vetter, Intel Graphics Development, Tomi Valkeinen,
Jyri Sarha, DRI Development
On Fri, Apr 03, 2020 at 03:58:11PM +0200, Daniel Vetter wrote:
> Already using devm_drm_dev_init, so very simple replacment.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Jyri Sarha <jsarha@ti.com>
> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
> ---
> drivers/gpu/drm/tidss/tidss_drv.c | 15 ++++-----------
> 1 file changed, 4 insertions(+), 11 deletions(-)
>
> diff --git a/drivers/gpu/drm/tidss/tidss_drv.c b/drivers/gpu/drm/tidss/tidss_drv.c
> index ad449d104306..7d4465d58be8 100644
> --- a/drivers/gpu/drm/tidss/tidss_drv.c
> +++ b/drivers/gpu/drm/tidss/tidss_drv.c
> @@ -135,20 +135,13 @@ static int tidss_probe(struct platform_device *pdev)
>
> dev_dbg(dev, "%s\n", __func__);
>
> - /* Can't use devm_* since drm_device's lifetime may exceed dev's */
> - tidss = kzalloc(sizeof(*tidss), GFP_KERNEL);
> - if (!tidss)
> - return -ENOMEM;
> + tidss = devm_drm_dev_alloc(&pdev->dev, &tidss_driver,
> + struct tidss_device, ddev);
> + if (IS_ERR(tidss))
> + return PTR_ERR(tidss);
>
> ddev = &tidss->ddev;
>
> - ret = devm_drm_dev_init(&pdev->dev, ddev, &tidss_driver);
> - if (ret) {
> - kfree(ddev);
> - return ret;
> - }
> - drmm_add_final_kfree(ddev, tidss);
> -
> tidss->dev = dev;
> tidss->feat = of_device_get_match_data(dev);
>
> --
> 2.25.1
>
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [Intel-gfx] [PATCH 27/44] drm/tidss: Use devm_drm_dev_alloc
@ 2020-04-08 7:52 ` Sam Ravnborg
0 siblings, 0 replies; 262+ messages in thread
From: Sam Ravnborg @ 2020-04-08 7:52 UTC (permalink / raw)
To: Daniel Vetter
Cc: Daniel Vetter, Intel Graphics Development, Tomi Valkeinen,
Jyri Sarha, DRI Development
On Fri, Apr 03, 2020 at 03:58:11PM +0200, Daniel Vetter wrote:
> Already using devm_drm_dev_init, so very simple replacment.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Jyri Sarha <jsarha@ti.com>
> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
> ---
> drivers/gpu/drm/tidss/tidss_drv.c | 15 ++++-----------
> 1 file changed, 4 insertions(+), 11 deletions(-)
>
> diff --git a/drivers/gpu/drm/tidss/tidss_drv.c b/drivers/gpu/drm/tidss/tidss_drv.c
> index ad449d104306..7d4465d58be8 100644
> --- a/drivers/gpu/drm/tidss/tidss_drv.c
> +++ b/drivers/gpu/drm/tidss/tidss_drv.c
> @@ -135,20 +135,13 @@ static int tidss_probe(struct platform_device *pdev)
>
> dev_dbg(dev, "%s\n", __func__);
>
> - /* Can't use devm_* since drm_device's lifetime may exceed dev's */
> - tidss = kzalloc(sizeof(*tidss), GFP_KERNEL);
> - if (!tidss)
> - return -ENOMEM;
> + tidss = devm_drm_dev_alloc(&pdev->dev, &tidss_driver,
> + struct tidss_device, ddev);
> + if (IS_ERR(tidss))
> + return PTR_ERR(tidss);
>
> ddev = &tidss->ddev;
>
> - ret = devm_drm_dev_init(&pdev->dev, ddev, &tidss_driver);
> - if (ret) {
> - kfree(ddev);
> - return ret;
> - }
> - drmm_add_final_kfree(ddev, tidss);
> -
> tidss->dev = dev;
> tidss->feat = of_device_get_match_data(dev);
>
> --
> 2.25.1
>
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 28/44] drm/tidss: Don't use drm_device->dev_private
2020-04-03 13:58 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-08 7:52 ` Sam Ravnborg
-1 siblings, 0 replies; 262+ messages in thread
From: Sam Ravnborg @ 2020-04-08 7:52 UTC (permalink / raw)
To: Daniel Vetter
Cc: Daniel Vetter, Intel Graphics Development, Tomi Valkeinen,
Jyri Sarha, DRI Development
On Fri, Apr 03, 2020 at 03:58:12PM +0200, Daniel Vetter wrote:
> Upcasting using a container_of macro is more typesafe, faster and
> easier for the compiler to optimize.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Jyri Sarha <jsarha@ti.com>
> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
> ---
> drivers/gpu/drm/tidss/tidss_crtc.c | 16 ++++++++--------
> drivers/gpu/drm/tidss/tidss_drv.c | 2 --
> drivers/gpu/drm/tidss/tidss_drv.h | 2 ++
> drivers/gpu/drm/tidss/tidss_irq.c | 12 ++++++------
> drivers/gpu/drm/tidss/tidss_kms.c | 2 +-
> drivers/gpu/drm/tidss/tidss_plane.c | 6 +++---
> 6 files changed, 20 insertions(+), 20 deletions(-)
>
> diff --git a/drivers/gpu/drm/tidss/tidss_crtc.c b/drivers/gpu/drm/tidss/tidss_crtc.c
> index d4ce9bab8c7e..2396262c09e4 100644
> --- a/drivers/gpu/drm/tidss/tidss_crtc.c
> +++ b/drivers/gpu/drm/tidss/tidss_crtc.c
> @@ -24,7 +24,7 @@
> static void tidss_crtc_finish_page_flip(struct tidss_crtc *tcrtc)
> {
> struct drm_device *ddev = tcrtc->crtc.dev;
> - struct tidss_device *tidss = ddev->dev_private;
> + struct tidss_device *tidss = to_tidss(ddev);
> struct drm_pending_vblank_event *event;
> unsigned long flags;
> bool busy;
> @@ -88,7 +88,7 @@ static int tidss_crtc_atomic_check(struct drm_crtc *crtc,
> struct drm_crtc_state *state)
> {
> struct drm_device *ddev = crtc->dev;
> - struct tidss_device *tidss = ddev->dev_private;
> + struct tidss_device *tidss = to_tidss(ddev);
> struct dispc_device *dispc = tidss->dispc;
> struct tidss_crtc *tcrtc = to_tidss_crtc(crtc);
> u32 hw_videoport = tcrtc->hw_videoport;
> @@ -165,7 +165,7 @@ static void tidss_crtc_atomic_flush(struct drm_crtc *crtc,
> {
> struct tidss_crtc *tcrtc = to_tidss_crtc(crtc);
> struct drm_device *ddev = crtc->dev;
> - struct tidss_device *tidss = ddev->dev_private;
> + struct tidss_device *tidss = to_tidss(ddev);
> unsigned long flags;
>
> dev_dbg(ddev->dev,
> @@ -216,7 +216,7 @@ static void tidss_crtc_atomic_enable(struct drm_crtc *crtc,
> {
> struct tidss_crtc *tcrtc = to_tidss_crtc(crtc);
> struct drm_device *ddev = crtc->dev;
> - struct tidss_device *tidss = ddev->dev_private;
> + struct tidss_device *tidss = to_tidss(ddev);
> const struct drm_display_mode *mode = &crtc->state->adjusted_mode;
> unsigned long flags;
> int r;
> @@ -259,7 +259,7 @@ static void tidss_crtc_atomic_disable(struct drm_crtc *crtc,
> {
> struct tidss_crtc *tcrtc = to_tidss_crtc(crtc);
> struct drm_device *ddev = crtc->dev;
> - struct tidss_device *tidss = ddev->dev_private;
> + struct tidss_device *tidss = to_tidss(ddev);
> unsigned long flags;
>
> dev_dbg(ddev->dev, "%s, event %p\n", __func__, crtc->state->event);
> @@ -295,7 +295,7 @@ enum drm_mode_status tidss_crtc_mode_valid(struct drm_crtc *crtc,
> {
> struct tidss_crtc *tcrtc = to_tidss_crtc(crtc);
> struct drm_device *ddev = crtc->dev;
> - struct tidss_device *tidss = ddev->dev_private;
> + struct tidss_device *tidss = to_tidss(ddev);
>
> return dispc_vp_mode_valid(tidss->dispc, tcrtc->hw_videoport, mode);
> }
> @@ -314,7 +314,7 @@ static const struct drm_crtc_helper_funcs tidss_crtc_helper_funcs = {
> static int tidss_crtc_enable_vblank(struct drm_crtc *crtc)
> {
> struct drm_device *ddev = crtc->dev;
> - struct tidss_device *tidss = ddev->dev_private;
> + struct tidss_device *tidss = to_tidss(ddev);
>
> dev_dbg(ddev->dev, "%s\n", __func__);
>
> @@ -328,7 +328,7 @@ static int tidss_crtc_enable_vblank(struct drm_crtc *crtc)
> static void tidss_crtc_disable_vblank(struct drm_crtc *crtc)
> {
> struct drm_device *ddev = crtc->dev;
> - struct tidss_device *tidss = ddev->dev_private;
> + struct tidss_device *tidss = to_tidss(ddev);
>
> dev_dbg(ddev->dev, "%s\n", __func__);
>
> diff --git a/drivers/gpu/drm/tidss/tidss_drv.c b/drivers/gpu/drm/tidss/tidss_drv.c
> index 7d4465d58be8..99edc66ebdef 100644
> --- a/drivers/gpu/drm/tidss/tidss_drv.c
> +++ b/drivers/gpu/drm/tidss/tidss_drv.c
> @@ -147,8 +147,6 @@ static int tidss_probe(struct platform_device *pdev)
>
> platform_set_drvdata(pdev, tidss);
>
> - ddev->dev_private = tidss;
> -
> ret = dispc_init(tidss);
> if (ret) {
> dev_err(dev, "failed to initialize dispc: %d\n", ret);
> diff --git a/drivers/gpu/drm/tidss/tidss_drv.h b/drivers/gpu/drm/tidss/tidss_drv.h
> index e2aa6436ad18..b23cd95c8d78 100644
> --- a/drivers/gpu/drm/tidss/tidss_drv.h
> +++ b/drivers/gpu/drm/tidss/tidss_drv.h
> @@ -33,6 +33,8 @@ struct tidss_device {
> struct drm_atomic_state *saved_state;
> };
>
> +#define to_tidss(__dev) container_of(__dev, struct tidss_device, ddev)
> +
> int tidss_runtime_get(struct tidss_device *tidss);
> void tidss_runtime_put(struct tidss_device *tidss);
>
> diff --git a/drivers/gpu/drm/tidss/tidss_irq.c b/drivers/gpu/drm/tidss/tidss_irq.c
> index 612c046738e5..1b80f2d62e0a 100644
> --- a/drivers/gpu/drm/tidss/tidss_irq.c
> +++ b/drivers/gpu/drm/tidss/tidss_irq.c
> @@ -23,7 +23,7 @@ static void tidss_irq_update(struct tidss_device *tidss)
> void tidss_irq_enable_vblank(struct drm_crtc *crtc)
> {
> struct drm_device *ddev = crtc->dev;
> - struct tidss_device *tidss = ddev->dev_private;
> + struct tidss_device *tidss = to_tidss(ddev);
> struct tidss_crtc *tcrtc = to_tidss_crtc(crtc);
> u32 hw_videoport = tcrtc->hw_videoport;
> unsigned long flags;
> @@ -38,7 +38,7 @@ void tidss_irq_enable_vblank(struct drm_crtc *crtc)
> void tidss_irq_disable_vblank(struct drm_crtc *crtc)
> {
> struct drm_device *ddev = crtc->dev;
> - struct tidss_device *tidss = ddev->dev_private;
> + struct tidss_device *tidss = to_tidss(ddev);
> struct tidss_crtc *tcrtc = to_tidss_crtc(crtc);
> u32 hw_videoport = tcrtc->hw_videoport;
> unsigned long flags;
> @@ -53,7 +53,7 @@ void tidss_irq_disable_vblank(struct drm_crtc *crtc)
> irqreturn_t tidss_irq_handler(int irq, void *arg)
> {
> struct drm_device *ddev = (struct drm_device *)arg;
> - struct tidss_device *tidss = ddev->dev_private;
> + struct tidss_device *tidss = to_tidss(ddev);
> unsigned int id;
> dispc_irq_t irqstatus;
>
> @@ -95,7 +95,7 @@ void tidss_irq_resume(struct tidss_device *tidss)
>
> void tidss_irq_preinstall(struct drm_device *ddev)
> {
> - struct tidss_device *tidss = ddev->dev_private;
> + struct tidss_device *tidss = to_tidss(ddev);
>
> spin_lock_init(&tidss->wait_lock);
>
> @@ -109,7 +109,7 @@ void tidss_irq_preinstall(struct drm_device *ddev)
>
> int tidss_irq_postinstall(struct drm_device *ddev)
> {
> - struct tidss_device *tidss = ddev->dev_private;
> + struct tidss_device *tidss = to_tidss(ddev);
> unsigned long flags;
> unsigned int i;
>
> @@ -138,7 +138,7 @@ int tidss_irq_postinstall(struct drm_device *ddev)
>
> void tidss_irq_uninstall(struct drm_device *ddev)
> {
> - struct tidss_device *tidss = ddev->dev_private;
> + struct tidss_device *tidss = to_tidss(ddev);
>
> tidss_runtime_get(tidss);
> dispc_set_irqenable(tidss->dispc, 0);
> diff --git a/drivers/gpu/drm/tidss/tidss_kms.c b/drivers/gpu/drm/tidss/tidss_kms.c
> index 4bd339a467a4..4b99e9fa84a5 100644
> --- a/drivers/gpu/drm/tidss/tidss_kms.c
> +++ b/drivers/gpu/drm/tidss/tidss_kms.c
> @@ -25,7 +25,7 @@
> static void tidss_atomic_commit_tail(struct drm_atomic_state *old_state)
> {
> struct drm_device *ddev = old_state->dev;
> - struct tidss_device *tidss = ddev->dev_private;
> + struct tidss_device *tidss = to_tidss(ddev);
>
> dev_dbg(ddev->dev, "%s\n", __func__);
>
> diff --git a/drivers/gpu/drm/tidss/tidss_plane.c b/drivers/gpu/drm/tidss/tidss_plane.c
> index ff99b2dd4a17..23bb3e59504b 100644
> --- a/drivers/gpu/drm/tidss/tidss_plane.c
> +++ b/drivers/gpu/drm/tidss/tidss_plane.c
> @@ -22,7 +22,7 @@ static int tidss_plane_atomic_check(struct drm_plane *plane,
> struct drm_plane_state *state)
> {
> struct drm_device *ddev = plane->dev;
> - struct tidss_device *tidss = ddev->dev_private;
> + struct tidss_device *tidss = to_tidss(ddev);
> struct tidss_plane *tplane = to_tidss_plane(plane);
> const struct drm_format_info *finfo;
> struct drm_crtc_state *crtc_state;
> @@ -101,7 +101,7 @@ static void tidss_plane_atomic_update(struct drm_plane *plane,
> struct drm_plane_state *old_state)
> {
> struct drm_device *ddev = plane->dev;
> - struct tidss_device *tidss = ddev->dev_private;
> + struct tidss_device *tidss = to_tidss(ddev);
> struct tidss_plane *tplane = to_tidss_plane(plane);
> struct drm_plane_state *state = plane->state;
> u32 hw_videoport;
> @@ -133,7 +133,7 @@ static void tidss_plane_atomic_disable(struct drm_plane *plane,
> struct drm_plane_state *old_state)
> {
> struct drm_device *ddev = plane->dev;
> - struct tidss_device *tidss = ddev->dev_private;
> + struct tidss_device *tidss = to_tidss(ddev);
> struct tidss_plane *tplane = to_tidss_plane(plane);
>
> dev_dbg(ddev->dev, "%s\n", __func__);
> --
> 2.25.1
>
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [Intel-gfx] [PATCH 28/44] drm/tidss: Don't use drm_device->dev_private
@ 2020-04-08 7:52 ` Sam Ravnborg
0 siblings, 0 replies; 262+ messages in thread
From: Sam Ravnborg @ 2020-04-08 7:52 UTC (permalink / raw)
To: Daniel Vetter
Cc: Daniel Vetter, Intel Graphics Development, Tomi Valkeinen,
Jyri Sarha, DRI Development
On Fri, Apr 03, 2020 at 03:58:12PM +0200, Daniel Vetter wrote:
> Upcasting using a container_of macro is more typesafe, faster and
> easier for the compiler to optimize.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Jyri Sarha <jsarha@ti.com>
> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
> ---
> drivers/gpu/drm/tidss/tidss_crtc.c | 16 ++++++++--------
> drivers/gpu/drm/tidss/tidss_drv.c | 2 --
> drivers/gpu/drm/tidss/tidss_drv.h | 2 ++
> drivers/gpu/drm/tidss/tidss_irq.c | 12 ++++++------
> drivers/gpu/drm/tidss/tidss_kms.c | 2 +-
> drivers/gpu/drm/tidss/tidss_plane.c | 6 +++---
> 6 files changed, 20 insertions(+), 20 deletions(-)
>
> diff --git a/drivers/gpu/drm/tidss/tidss_crtc.c b/drivers/gpu/drm/tidss/tidss_crtc.c
> index d4ce9bab8c7e..2396262c09e4 100644
> --- a/drivers/gpu/drm/tidss/tidss_crtc.c
> +++ b/drivers/gpu/drm/tidss/tidss_crtc.c
> @@ -24,7 +24,7 @@
> static void tidss_crtc_finish_page_flip(struct tidss_crtc *tcrtc)
> {
> struct drm_device *ddev = tcrtc->crtc.dev;
> - struct tidss_device *tidss = ddev->dev_private;
> + struct tidss_device *tidss = to_tidss(ddev);
> struct drm_pending_vblank_event *event;
> unsigned long flags;
> bool busy;
> @@ -88,7 +88,7 @@ static int tidss_crtc_atomic_check(struct drm_crtc *crtc,
> struct drm_crtc_state *state)
> {
> struct drm_device *ddev = crtc->dev;
> - struct tidss_device *tidss = ddev->dev_private;
> + struct tidss_device *tidss = to_tidss(ddev);
> struct dispc_device *dispc = tidss->dispc;
> struct tidss_crtc *tcrtc = to_tidss_crtc(crtc);
> u32 hw_videoport = tcrtc->hw_videoport;
> @@ -165,7 +165,7 @@ static void tidss_crtc_atomic_flush(struct drm_crtc *crtc,
> {
> struct tidss_crtc *tcrtc = to_tidss_crtc(crtc);
> struct drm_device *ddev = crtc->dev;
> - struct tidss_device *tidss = ddev->dev_private;
> + struct tidss_device *tidss = to_tidss(ddev);
> unsigned long flags;
>
> dev_dbg(ddev->dev,
> @@ -216,7 +216,7 @@ static void tidss_crtc_atomic_enable(struct drm_crtc *crtc,
> {
> struct tidss_crtc *tcrtc = to_tidss_crtc(crtc);
> struct drm_device *ddev = crtc->dev;
> - struct tidss_device *tidss = ddev->dev_private;
> + struct tidss_device *tidss = to_tidss(ddev);
> const struct drm_display_mode *mode = &crtc->state->adjusted_mode;
> unsigned long flags;
> int r;
> @@ -259,7 +259,7 @@ static void tidss_crtc_atomic_disable(struct drm_crtc *crtc,
> {
> struct tidss_crtc *tcrtc = to_tidss_crtc(crtc);
> struct drm_device *ddev = crtc->dev;
> - struct tidss_device *tidss = ddev->dev_private;
> + struct tidss_device *tidss = to_tidss(ddev);
> unsigned long flags;
>
> dev_dbg(ddev->dev, "%s, event %p\n", __func__, crtc->state->event);
> @@ -295,7 +295,7 @@ enum drm_mode_status tidss_crtc_mode_valid(struct drm_crtc *crtc,
> {
> struct tidss_crtc *tcrtc = to_tidss_crtc(crtc);
> struct drm_device *ddev = crtc->dev;
> - struct tidss_device *tidss = ddev->dev_private;
> + struct tidss_device *tidss = to_tidss(ddev);
>
> return dispc_vp_mode_valid(tidss->dispc, tcrtc->hw_videoport, mode);
> }
> @@ -314,7 +314,7 @@ static const struct drm_crtc_helper_funcs tidss_crtc_helper_funcs = {
> static int tidss_crtc_enable_vblank(struct drm_crtc *crtc)
> {
> struct drm_device *ddev = crtc->dev;
> - struct tidss_device *tidss = ddev->dev_private;
> + struct tidss_device *tidss = to_tidss(ddev);
>
> dev_dbg(ddev->dev, "%s\n", __func__);
>
> @@ -328,7 +328,7 @@ static int tidss_crtc_enable_vblank(struct drm_crtc *crtc)
> static void tidss_crtc_disable_vblank(struct drm_crtc *crtc)
> {
> struct drm_device *ddev = crtc->dev;
> - struct tidss_device *tidss = ddev->dev_private;
> + struct tidss_device *tidss = to_tidss(ddev);
>
> dev_dbg(ddev->dev, "%s\n", __func__);
>
> diff --git a/drivers/gpu/drm/tidss/tidss_drv.c b/drivers/gpu/drm/tidss/tidss_drv.c
> index 7d4465d58be8..99edc66ebdef 100644
> --- a/drivers/gpu/drm/tidss/tidss_drv.c
> +++ b/drivers/gpu/drm/tidss/tidss_drv.c
> @@ -147,8 +147,6 @@ static int tidss_probe(struct platform_device *pdev)
>
> platform_set_drvdata(pdev, tidss);
>
> - ddev->dev_private = tidss;
> -
> ret = dispc_init(tidss);
> if (ret) {
> dev_err(dev, "failed to initialize dispc: %d\n", ret);
> diff --git a/drivers/gpu/drm/tidss/tidss_drv.h b/drivers/gpu/drm/tidss/tidss_drv.h
> index e2aa6436ad18..b23cd95c8d78 100644
> --- a/drivers/gpu/drm/tidss/tidss_drv.h
> +++ b/drivers/gpu/drm/tidss/tidss_drv.h
> @@ -33,6 +33,8 @@ struct tidss_device {
> struct drm_atomic_state *saved_state;
> };
>
> +#define to_tidss(__dev) container_of(__dev, struct tidss_device, ddev)
> +
> int tidss_runtime_get(struct tidss_device *tidss);
> void tidss_runtime_put(struct tidss_device *tidss);
>
> diff --git a/drivers/gpu/drm/tidss/tidss_irq.c b/drivers/gpu/drm/tidss/tidss_irq.c
> index 612c046738e5..1b80f2d62e0a 100644
> --- a/drivers/gpu/drm/tidss/tidss_irq.c
> +++ b/drivers/gpu/drm/tidss/tidss_irq.c
> @@ -23,7 +23,7 @@ static void tidss_irq_update(struct tidss_device *tidss)
> void tidss_irq_enable_vblank(struct drm_crtc *crtc)
> {
> struct drm_device *ddev = crtc->dev;
> - struct tidss_device *tidss = ddev->dev_private;
> + struct tidss_device *tidss = to_tidss(ddev);
> struct tidss_crtc *tcrtc = to_tidss_crtc(crtc);
> u32 hw_videoport = tcrtc->hw_videoport;
> unsigned long flags;
> @@ -38,7 +38,7 @@ void tidss_irq_enable_vblank(struct drm_crtc *crtc)
> void tidss_irq_disable_vblank(struct drm_crtc *crtc)
> {
> struct drm_device *ddev = crtc->dev;
> - struct tidss_device *tidss = ddev->dev_private;
> + struct tidss_device *tidss = to_tidss(ddev);
> struct tidss_crtc *tcrtc = to_tidss_crtc(crtc);
> u32 hw_videoport = tcrtc->hw_videoport;
> unsigned long flags;
> @@ -53,7 +53,7 @@ void tidss_irq_disable_vblank(struct drm_crtc *crtc)
> irqreturn_t tidss_irq_handler(int irq, void *arg)
> {
> struct drm_device *ddev = (struct drm_device *)arg;
> - struct tidss_device *tidss = ddev->dev_private;
> + struct tidss_device *tidss = to_tidss(ddev);
> unsigned int id;
> dispc_irq_t irqstatus;
>
> @@ -95,7 +95,7 @@ void tidss_irq_resume(struct tidss_device *tidss)
>
> void tidss_irq_preinstall(struct drm_device *ddev)
> {
> - struct tidss_device *tidss = ddev->dev_private;
> + struct tidss_device *tidss = to_tidss(ddev);
>
> spin_lock_init(&tidss->wait_lock);
>
> @@ -109,7 +109,7 @@ void tidss_irq_preinstall(struct drm_device *ddev)
>
> int tidss_irq_postinstall(struct drm_device *ddev)
> {
> - struct tidss_device *tidss = ddev->dev_private;
> + struct tidss_device *tidss = to_tidss(ddev);
> unsigned long flags;
> unsigned int i;
>
> @@ -138,7 +138,7 @@ int tidss_irq_postinstall(struct drm_device *ddev)
>
> void tidss_irq_uninstall(struct drm_device *ddev)
> {
> - struct tidss_device *tidss = ddev->dev_private;
> + struct tidss_device *tidss = to_tidss(ddev);
>
> tidss_runtime_get(tidss);
> dispc_set_irqenable(tidss->dispc, 0);
> diff --git a/drivers/gpu/drm/tidss/tidss_kms.c b/drivers/gpu/drm/tidss/tidss_kms.c
> index 4bd339a467a4..4b99e9fa84a5 100644
> --- a/drivers/gpu/drm/tidss/tidss_kms.c
> +++ b/drivers/gpu/drm/tidss/tidss_kms.c
> @@ -25,7 +25,7 @@
> static void tidss_atomic_commit_tail(struct drm_atomic_state *old_state)
> {
> struct drm_device *ddev = old_state->dev;
> - struct tidss_device *tidss = ddev->dev_private;
> + struct tidss_device *tidss = to_tidss(ddev);
>
> dev_dbg(ddev->dev, "%s\n", __func__);
>
> diff --git a/drivers/gpu/drm/tidss/tidss_plane.c b/drivers/gpu/drm/tidss/tidss_plane.c
> index ff99b2dd4a17..23bb3e59504b 100644
> --- a/drivers/gpu/drm/tidss/tidss_plane.c
> +++ b/drivers/gpu/drm/tidss/tidss_plane.c
> @@ -22,7 +22,7 @@ static int tidss_plane_atomic_check(struct drm_plane *plane,
> struct drm_plane_state *state)
> {
> struct drm_device *ddev = plane->dev;
> - struct tidss_device *tidss = ddev->dev_private;
> + struct tidss_device *tidss = to_tidss(ddev);
> struct tidss_plane *tplane = to_tidss_plane(plane);
> const struct drm_format_info *finfo;
> struct drm_crtc_state *crtc_state;
> @@ -101,7 +101,7 @@ static void tidss_plane_atomic_update(struct drm_plane *plane,
> struct drm_plane_state *old_state)
> {
> struct drm_device *ddev = plane->dev;
> - struct tidss_device *tidss = ddev->dev_private;
> + struct tidss_device *tidss = to_tidss(ddev);
> struct tidss_plane *tplane = to_tidss_plane(plane);
> struct drm_plane_state *state = plane->state;
> u32 hw_videoport;
> @@ -133,7 +133,7 @@ static void tidss_plane_atomic_disable(struct drm_plane *plane,
> struct drm_plane_state *old_state)
> {
> struct drm_device *ddev = plane->dev;
> - struct tidss_device *tidss = ddev->dev_private;
> + struct tidss_device *tidss = to_tidss(ddev);
> struct tidss_plane *tplane = to_tidss_plane(plane);
>
> dev_dbg(ddev->dev, "%s\n", __func__);
> --
> 2.25.1
>
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
_______________________________________________
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^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 29/44] drm/tidss: Delete tidss->saved_state
2020-04-03 13:58 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-08 7:53 ` Sam Ravnborg
-1 siblings, 0 replies; 262+ messages in thread
From: Sam Ravnborg @ 2020-04-08 7:53 UTC (permalink / raw)
To: Daniel Vetter
Cc: Daniel Vetter, Intel Graphics Development, Tomi Valkeinen,
Jyri Sarha, DRI Development
On Fri, Apr 03, 2020 at 03:58:13PM +0200, Daniel Vetter wrote:
> Not used anymore since the switch to suspend/resume helpers.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Jyri Sarha <jsarha@ti.com>
> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Good spot.
Acked-by: Sam Ravnborg <sam@ravnborg.org>
> ---
> drivers/gpu/drm/tidss/tidss_drv.h | 2 --
> 1 file changed, 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/tidss/tidss_drv.h b/drivers/gpu/drm/tidss/tidss_drv.h
> index b23cd95c8d78..3b0a3d87b7c4 100644
> --- a/drivers/gpu/drm/tidss/tidss_drv.h
> +++ b/drivers/gpu/drm/tidss/tidss_drv.h
> @@ -29,8 +29,6 @@ struct tidss_device {
>
> spinlock_t wait_lock; /* protects the irq masks */
> dispc_irq_t irq_mask; /* enabled irqs in addition to wait_list */
> -
> - struct drm_atomic_state *saved_state;
> };
>
> #define to_tidss(__dev) container_of(__dev, struct tidss_device, ddev)
> --
> 2.25.1
>
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
_______________________________________________
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https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [Intel-gfx] [PATCH 29/44] drm/tidss: Delete tidss->saved_state
@ 2020-04-08 7:53 ` Sam Ravnborg
0 siblings, 0 replies; 262+ messages in thread
From: Sam Ravnborg @ 2020-04-08 7:53 UTC (permalink / raw)
To: Daniel Vetter
Cc: Daniel Vetter, Intel Graphics Development, Tomi Valkeinen,
Jyri Sarha, DRI Development
On Fri, Apr 03, 2020 at 03:58:13PM +0200, Daniel Vetter wrote:
> Not used anymore since the switch to suspend/resume helpers.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Jyri Sarha <jsarha@ti.com>
> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Good spot.
Acked-by: Sam Ravnborg <sam@ravnborg.org>
> ---
> drivers/gpu/drm/tidss/tidss_drv.h | 2 --
> 1 file changed, 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/tidss/tidss_drv.h b/drivers/gpu/drm/tidss/tidss_drv.h
> index b23cd95c8d78..3b0a3d87b7c4 100644
> --- a/drivers/gpu/drm/tidss/tidss_drv.h
> +++ b/drivers/gpu/drm/tidss/tidss_drv.h
> @@ -29,8 +29,6 @@ struct tidss_device {
>
> spinlock_t wait_lock; /* protects the irq masks */
> dispc_irq_t irq_mask; /* enabled irqs in addition to wait_list */
> -
> - struct drm_atomic_state *saved_state;
> };
>
> #define to_tidss(__dev) container_of(__dev, struct tidss_device, ddev)
> --
> 2.25.1
>
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 32/44] drm/mcde: Use devm_drm_dev_alloc
2020-04-03 13:58 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-08 7:57 ` Sam Ravnborg
-1 siblings, 0 replies; 262+ messages in thread
From: Sam Ravnborg @ 2020-04-08 7:57 UTC (permalink / raw)
To: Daniel Vetter; +Cc: Daniel Vetter, Intel Graphics Development, DRI Development
On Fri, Apr 03, 2020 at 03:58:16PM +0200, Daniel Vetter wrote:
> Already using devm_drm_dev_init, so very simple replacment.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
But one comment below.
> ---
> drivers/gpu/drm/mcde/mcde_drv.c | 16 ++++------------
> 1 file changed, 4 insertions(+), 12 deletions(-)
>
> diff --git a/drivers/gpu/drm/mcde/mcde_drv.c b/drivers/gpu/drm/mcde/mcde_drv.c
> index 88cc6b4a7a64..bdb525e3c5d7 100644
> --- a/drivers/gpu/drm/mcde/mcde_drv.c
> +++ b/drivers/gpu/drm/mcde/mcde_drv.c
> @@ -307,24 +307,16 @@ static int mcde_probe(struct platform_device *pdev)
> int ret;
> int i;
>
> - mcde = kzalloc(sizeof(*mcde), GFP_KERNEL);
> - if (!mcde)
> - return -ENOMEM;
> - mcde->dev = dev;
> -
> - ret = devm_drm_dev_init(dev, &mcde->drm, &mcde_drm_driver);
> - if (ret) {
> - kfree(mcde);
> - return ret;
> - }
> + mcde = devm_drm_dev_alloc(dev, &mcde_drm_driver, struct mcde, drm);
> + if (IS_ERR(mcde))
> + return PTR_ERR(mcde);
> drm = &mcde->drm;
> drm->dev_private = mcde;
> - drmm_add_final_kfree(drm, mcde);
> + mcde->dev = dev;
> platform_set_drvdata(pdev, drm);
>
> /* Enable continuous updates: this is what Linux' framebuffer expects */
> mcde->oneshot_mode = false;
> - drm->dev_private = mcde;
It is assinged twice - but this change really belongs in next patch.
>
> /* First obtain and turn on the main power */
> mcde->epod = devm_regulator_get(dev, "epod");
> --
> 2.25.1
>
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
_______________________________________________
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dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [Intel-gfx] [PATCH 32/44] drm/mcde: Use devm_drm_dev_alloc
@ 2020-04-08 7:57 ` Sam Ravnborg
0 siblings, 0 replies; 262+ messages in thread
From: Sam Ravnborg @ 2020-04-08 7:57 UTC (permalink / raw)
To: Daniel Vetter; +Cc: Daniel Vetter, Intel Graphics Development, DRI Development
On Fri, Apr 03, 2020 at 03:58:16PM +0200, Daniel Vetter wrote:
> Already using devm_drm_dev_init, so very simple replacment.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
But one comment below.
> ---
> drivers/gpu/drm/mcde/mcde_drv.c | 16 ++++------------
> 1 file changed, 4 insertions(+), 12 deletions(-)
>
> diff --git a/drivers/gpu/drm/mcde/mcde_drv.c b/drivers/gpu/drm/mcde/mcde_drv.c
> index 88cc6b4a7a64..bdb525e3c5d7 100644
> --- a/drivers/gpu/drm/mcde/mcde_drv.c
> +++ b/drivers/gpu/drm/mcde/mcde_drv.c
> @@ -307,24 +307,16 @@ static int mcde_probe(struct platform_device *pdev)
> int ret;
> int i;
>
> - mcde = kzalloc(sizeof(*mcde), GFP_KERNEL);
> - if (!mcde)
> - return -ENOMEM;
> - mcde->dev = dev;
> -
> - ret = devm_drm_dev_init(dev, &mcde->drm, &mcde_drm_driver);
> - if (ret) {
> - kfree(mcde);
> - return ret;
> - }
> + mcde = devm_drm_dev_alloc(dev, &mcde_drm_driver, struct mcde, drm);
> + if (IS_ERR(mcde))
> + return PTR_ERR(mcde);
> drm = &mcde->drm;
> drm->dev_private = mcde;
> - drmm_add_final_kfree(drm, mcde);
> + mcde->dev = dev;
> platform_set_drvdata(pdev, drm);
>
> /* Enable continuous updates: this is what Linux' framebuffer expects */
> mcde->oneshot_mode = false;
> - drm->dev_private = mcde;
It is assinged twice - but this change really belongs in next patch.
>
> /* First obtain and turn on the main power */
> mcde->epod = devm_regulator_get(dev, "epod");
> --
> 2.25.1
>
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 33/44] drm/mcde: Don't use drm_device->dev_private
2020-04-03 13:58 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-08 7:58 ` Sam Ravnborg
-1 siblings, 0 replies; 262+ messages in thread
From: Sam Ravnborg @ 2020-04-08 7:58 UTC (permalink / raw)
To: Daniel Vetter; +Cc: Daniel Vetter, Intel Graphics Development, DRI Development
On Fri, Apr 03, 2020 at 03:58:17PM +0200, Daniel Vetter wrote:
> Upcasting using a container_of macro is more typesafe, faster and
> easier for the compiler to optimize.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
> ---
> drivers/gpu/drm/mcde/mcde_display.c | 10 +++++-----
> drivers/gpu/drm/mcde/mcde_drm.h | 2 ++
> drivers/gpu/drm/mcde/mcde_drv.c | 5 ++---
> drivers/gpu/drm/mcde/mcde_dsi.c | 2 +-
> 4 files changed, 10 insertions(+), 9 deletions(-)
>
> diff --git a/drivers/gpu/drm/mcde/mcde_display.c b/drivers/gpu/drm/mcde/mcde_display.c
> index e59907e68854..04e1d38d41f7 100644
> --- a/drivers/gpu/drm/mcde/mcde_display.c
> +++ b/drivers/gpu/drm/mcde/mcde_display.c
> @@ -948,7 +948,7 @@ static void mcde_display_disable(struct drm_simple_display_pipe *pipe)
> {
> struct drm_crtc *crtc = &pipe->crtc;
> struct drm_device *drm = crtc->dev;
> - struct mcde *mcde = drm->dev_private;
> + struct mcde *mcde = to_mcde(drm);
> struct drm_pending_vblank_event *event;
>
> drm_crtc_vblank_off(crtc);
> @@ -1020,7 +1020,7 @@ static void mcde_display_update(struct drm_simple_display_pipe *pipe,
> {
> struct drm_crtc *crtc = &pipe->crtc;
> struct drm_device *drm = crtc->dev;
> - struct mcde *mcde = drm->dev_private;
> + struct mcde *mcde = to_mcde(drm);
> struct drm_pending_vblank_event *event = crtc->state->event;
> struct drm_plane *plane = &pipe->plane;
> struct drm_plane_state *pstate = plane->state;
> @@ -1078,7 +1078,7 @@ static int mcde_display_enable_vblank(struct drm_simple_display_pipe *pipe)
> {
> struct drm_crtc *crtc = &pipe->crtc;
> struct drm_device *drm = crtc->dev;
> - struct mcde *mcde = drm->dev_private;
> + struct mcde *mcde = to_mcde(drm);
> u32 val;
>
> /* Enable all VBLANK IRQs */
> @@ -1097,7 +1097,7 @@ static void mcde_display_disable_vblank(struct drm_simple_display_pipe *pipe)
> {
> struct drm_crtc *crtc = &pipe->crtc;
> struct drm_device *drm = crtc->dev;
> - struct mcde *mcde = drm->dev_private;
> + struct mcde *mcde = to_mcde(drm);
>
> /* Disable all VBLANK IRQs */
> writel(0, mcde->regs + MCDE_IMSCPP);
> @@ -1117,7 +1117,7 @@ static struct drm_simple_display_pipe_funcs mcde_display_funcs = {
>
> int mcde_display_init(struct drm_device *drm)
> {
> - struct mcde *mcde = drm->dev_private;
> + struct mcde *mcde = to_mcde(drm);
> int ret;
> static const u32 formats[] = {
> DRM_FORMAT_ARGB8888,
> diff --git a/drivers/gpu/drm/mcde/mcde_drm.h b/drivers/gpu/drm/mcde/mcde_drm.h
> index 80edd6628979..679c2c4e6d9d 100644
> --- a/drivers/gpu/drm/mcde/mcde_drm.h
> +++ b/drivers/gpu/drm/mcde/mcde_drm.h
> @@ -34,6 +34,8 @@ struct mcde {
> struct regulator *vana;
> };
>
> +#define to_mcde(dev) container_of(dev, struct mcde, drm)
> +
> bool mcde_dsi_irq(struct mipi_dsi_device *mdsi);
> void mcde_dsi_te_request(struct mipi_dsi_device *mdsi);
> extern struct platform_driver mcde_dsi_driver;
> diff --git a/drivers/gpu/drm/mcde/mcde_drv.c b/drivers/gpu/drm/mcde/mcde_drv.c
> index bdb525e3c5d7..84f3e2dbd77b 100644
> --- a/drivers/gpu/drm/mcde/mcde_drv.c
> +++ b/drivers/gpu/drm/mcde/mcde_drv.c
> @@ -164,7 +164,7 @@ static irqreturn_t mcde_irq(int irq, void *data)
> static int mcde_modeset_init(struct drm_device *drm)
> {
> struct drm_mode_config *mode_config;
> - struct mcde *mcde = drm->dev_private;
> + struct mcde *mcde = to_mcde(drm);
> int ret;
>
> if (!mcde->bridge) {
> @@ -311,7 +311,6 @@ static int mcde_probe(struct platform_device *pdev)
> if (IS_ERR(mcde))
> return PTR_ERR(mcde);
> drm = &mcde->drm;
> - drm->dev_private = mcde;
> mcde->dev = dev;
> platform_set_drvdata(pdev, drm);
>
> @@ -486,7 +485,7 @@ static int mcde_probe(struct platform_device *pdev)
> static int mcde_remove(struct platform_device *pdev)
> {
> struct drm_device *drm = platform_get_drvdata(pdev);
> - struct mcde *mcde = drm->dev_private;
> + struct mcde *mcde = to_mcde(drm);
>
> component_master_del(&pdev->dev, &mcde_drm_comp_ops);
> clk_disable_unprepare(mcde->mcde_clk);
> diff --git a/drivers/gpu/drm/mcde/mcde_dsi.c b/drivers/gpu/drm/mcde/mcde_dsi.c
> index 7af5ebb0c436..1baa2324cdb9 100644
> --- a/drivers/gpu/drm/mcde/mcde_dsi.c
> +++ b/drivers/gpu/drm/mcde/mcde_dsi.c
> @@ -1020,7 +1020,7 @@ static int mcde_dsi_bind(struct device *dev, struct device *master,
> void *data)
> {
> struct drm_device *drm = data;
> - struct mcde *mcde = drm->dev_private;
> + struct mcde *mcde = to_mcde(drm);
> struct mcde_dsi *d = dev_get_drvdata(dev);
> struct device_node *child;
> struct drm_panel *panel = NULL;
> --
> 2.25.1
>
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [Intel-gfx] [PATCH 33/44] drm/mcde: Don't use drm_device->dev_private
@ 2020-04-08 7:58 ` Sam Ravnborg
0 siblings, 0 replies; 262+ messages in thread
From: Sam Ravnborg @ 2020-04-08 7:58 UTC (permalink / raw)
To: Daniel Vetter; +Cc: Daniel Vetter, Intel Graphics Development, DRI Development
On Fri, Apr 03, 2020 at 03:58:17PM +0200, Daniel Vetter wrote:
> Upcasting using a container_of macro is more typesafe, faster and
> easier for the compiler to optimize.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
> ---
> drivers/gpu/drm/mcde/mcde_display.c | 10 +++++-----
> drivers/gpu/drm/mcde/mcde_drm.h | 2 ++
> drivers/gpu/drm/mcde/mcde_drv.c | 5 ++---
> drivers/gpu/drm/mcde/mcde_dsi.c | 2 +-
> 4 files changed, 10 insertions(+), 9 deletions(-)
>
> diff --git a/drivers/gpu/drm/mcde/mcde_display.c b/drivers/gpu/drm/mcde/mcde_display.c
> index e59907e68854..04e1d38d41f7 100644
> --- a/drivers/gpu/drm/mcde/mcde_display.c
> +++ b/drivers/gpu/drm/mcde/mcde_display.c
> @@ -948,7 +948,7 @@ static void mcde_display_disable(struct drm_simple_display_pipe *pipe)
> {
> struct drm_crtc *crtc = &pipe->crtc;
> struct drm_device *drm = crtc->dev;
> - struct mcde *mcde = drm->dev_private;
> + struct mcde *mcde = to_mcde(drm);
> struct drm_pending_vblank_event *event;
>
> drm_crtc_vblank_off(crtc);
> @@ -1020,7 +1020,7 @@ static void mcde_display_update(struct drm_simple_display_pipe *pipe,
> {
> struct drm_crtc *crtc = &pipe->crtc;
> struct drm_device *drm = crtc->dev;
> - struct mcde *mcde = drm->dev_private;
> + struct mcde *mcde = to_mcde(drm);
> struct drm_pending_vblank_event *event = crtc->state->event;
> struct drm_plane *plane = &pipe->plane;
> struct drm_plane_state *pstate = plane->state;
> @@ -1078,7 +1078,7 @@ static int mcde_display_enable_vblank(struct drm_simple_display_pipe *pipe)
> {
> struct drm_crtc *crtc = &pipe->crtc;
> struct drm_device *drm = crtc->dev;
> - struct mcde *mcde = drm->dev_private;
> + struct mcde *mcde = to_mcde(drm);
> u32 val;
>
> /* Enable all VBLANK IRQs */
> @@ -1097,7 +1097,7 @@ static void mcde_display_disable_vblank(struct drm_simple_display_pipe *pipe)
> {
> struct drm_crtc *crtc = &pipe->crtc;
> struct drm_device *drm = crtc->dev;
> - struct mcde *mcde = drm->dev_private;
> + struct mcde *mcde = to_mcde(drm);
>
> /* Disable all VBLANK IRQs */
> writel(0, mcde->regs + MCDE_IMSCPP);
> @@ -1117,7 +1117,7 @@ static struct drm_simple_display_pipe_funcs mcde_display_funcs = {
>
> int mcde_display_init(struct drm_device *drm)
> {
> - struct mcde *mcde = drm->dev_private;
> + struct mcde *mcde = to_mcde(drm);
> int ret;
> static const u32 formats[] = {
> DRM_FORMAT_ARGB8888,
> diff --git a/drivers/gpu/drm/mcde/mcde_drm.h b/drivers/gpu/drm/mcde/mcde_drm.h
> index 80edd6628979..679c2c4e6d9d 100644
> --- a/drivers/gpu/drm/mcde/mcde_drm.h
> +++ b/drivers/gpu/drm/mcde/mcde_drm.h
> @@ -34,6 +34,8 @@ struct mcde {
> struct regulator *vana;
> };
>
> +#define to_mcde(dev) container_of(dev, struct mcde, drm)
> +
> bool mcde_dsi_irq(struct mipi_dsi_device *mdsi);
> void mcde_dsi_te_request(struct mipi_dsi_device *mdsi);
> extern struct platform_driver mcde_dsi_driver;
> diff --git a/drivers/gpu/drm/mcde/mcde_drv.c b/drivers/gpu/drm/mcde/mcde_drv.c
> index bdb525e3c5d7..84f3e2dbd77b 100644
> --- a/drivers/gpu/drm/mcde/mcde_drv.c
> +++ b/drivers/gpu/drm/mcde/mcde_drv.c
> @@ -164,7 +164,7 @@ static irqreturn_t mcde_irq(int irq, void *data)
> static int mcde_modeset_init(struct drm_device *drm)
> {
> struct drm_mode_config *mode_config;
> - struct mcde *mcde = drm->dev_private;
> + struct mcde *mcde = to_mcde(drm);
> int ret;
>
> if (!mcde->bridge) {
> @@ -311,7 +311,6 @@ static int mcde_probe(struct platform_device *pdev)
> if (IS_ERR(mcde))
> return PTR_ERR(mcde);
> drm = &mcde->drm;
> - drm->dev_private = mcde;
> mcde->dev = dev;
> platform_set_drvdata(pdev, drm);
>
> @@ -486,7 +485,7 @@ static int mcde_probe(struct platform_device *pdev)
> static int mcde_remove(struct platform_device *pdev)
> {
> struct drm_device *drm = platform_get_drvdata(pdev);
> - struct mcde *mcde = drm->dev_private;
> + struct mcde *mcde = to_mcde(drm);
>
> component_master_del(&pdev->dev, &mcde_drm_comp_ops);
> clk_disable_unprepare(mcde->mcde_clk);
> diff --git a/drivers/gpu/drm/mcde/mcde_dsi.c b/drivers/gpu/drm/mcde/mcde_dsi.c
> index 7af5ebb0c436..1baa2324cdb9 100644
> --- a/drivers/gpu/drm/mcde/mcde_dsi.c
> +++ b/drivers/gpu/drm/mcde/mcde_dsi.c
> @@ -1020,7 +1020,7 @@ static int mcde_dsi_bind(struct device *dev, struct device *master,
> void *data)
> {
> struct drm_device *drm = data;
> - struct mcde *mcde = drm->dev_private;
> + struct mcde *mcde = to_mcde(drm);
> struct mcde_dsi *d = dev_get_drvdata(dev);
> struct device_node *child;
> struct drm_panel *panel = NULL;
> --
> 2.25.1
>
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 34/44] drm/ingenic: Use devm_drm_dev_alloc
2020-04-03 13:58 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-08 7:59 ` Sam Ravnborg
-1 siblings, 0 replies; 262+ messages in thread
From: Sam Ravnborg @ 2020-04-08 7:59 UTC (permalink / raw)
To: Daniel Vetter
Cc: Paul Cercueil, Daniel Vetter, Intel Graphics Development,
DRI Development
On Fri, Apr 03, 2020 at 03:58:18PM +0200, Daniel Vetter wrote:
> Already using devm_drm_dev_init, so very simple replacment.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Paul Cercueil <paul@crapouillou.net>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
> ---
> drivers/gpu/drm/ingenic/ingenic-drm.c | 14 ++++----------
> 1 file changed, 4 insertions(+), 10 deletions(-)
>
> diff --git a/drivers/gpu/drm/ingenic/ingenic-drm.c b/drivers/gpu/drm/ingenic/ingenic-drm.c
> index a9bc6623b488..bb62d8e93985 100644
> --- a/drivers/gpu/drm/ingenic/ingenic-drm.c
> +++ b/drivers/gpu/drm/ingenic/ingenic-drm.c
> @@ -614,9 +614,10 @@ static int ingenic_drm_probe(struct platform_device *pdev)
> return -EINVAL;
> }
>
> - priv = kzalloc(sizeof(*priv), GFP_KERNEL);
> - if (!priv)
> - return -ENOMEM;
> + priv = devm_drm_dev_alloc(dev, &ingenic_drm_driver_data,
> + struct ingenic_drm, drm);
> + if (IS_ERR(priv))
> + return PTR_ERR(priv);
>
> priv->soc_info = soc_info;
> priv->dev = dev;
> @@ -625,13 +626,6 @@ static int ingenic_drm_probe(struct platform_device *pdev)
>
> platform_set_drvdata(pdev, priv);
>
> - ret = devm_drm_dev_init(dev, drm, &ingenic_drm_driver_data);
> - if (ret) {
> - kfree(priv);
> - return ret;
> - }
> - drmm_add_final_kfree(drm, priv);
> -
> ret = drmm_mode_config_init(drm);
> if (ret)
> return ret;
> --
> 2.25.1
>
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [Intel-gfx] [PATCH 34/44] drm/ingenic: Use devm_drm_dev_alloc
@ 2020-04-08 7:59 ` Sam Ravnborg
0 siblings, 0 replies; 262+ messages in thread
From: Sam Ravnborg @ 2020-04-08 7:59 UTC (permalink / raw)
To: Daniel Vetter
Cc: Paul Cercueil, Daniel Vetter, Intel Graphics Development,
DRI Development
On Fri, Apr 03, 2020 at 03:58:18PM +0200, Daniel Vetter wrote:
> Already using devm_drm_dev_init, so very simple replacment.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Paul Cercueil <paul@crapouillou.net>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
> ---
> drivers/gpu/drm/ingenic/ingenic-drm.c | 14 ++++----------
> 1 file changed, 4 insertions(+), 10 deletions(-)
>
> diff --git a/drivers/gpu/drm/ingenic/ingenic-drm.c b/drivers/gpu/drm/ingenic/ingenic-drm.c
> index a9bc6623b488..bb62d8e93985 100644
> --- a/drivers/gpu/drm/ingenic/ingenic-drm.c
> +++ b/drivers/gpu/drm/ingenic/ingenic-drm.c
> @@ -614,9 +614,10 @@ static int ingenic_drm_probe(struct platform_device *pdev)
> return -EINVAL;
> }
>
> - priv = kzalloc(sizeof(*priv), GFP_KERNEL);
> - if (!priv)
> - return -ENOMEM;
> + priv = devm_drm_dev_alloc(dev, &ingenic_drm_driver_data,
> + struct ingenic_drm, drm);
> + if (IS_ERR(priv))
> + return PTR_ERR(priv);
>
> priv->soc_info = soc_info;
> priv->dev = dev;
> @@ -625,13 +626,6 @@ static int ingenic_drm_probe(struct platform_device *pdev)
>
> platform_set_drvdata(pdev, priv);
>
> - ret = devm_drm_dev_init(dev, drm, &ingenic_drm_driver_data);
> - if (ret) {
> - kfree(priv);
> - return ret;
> - }
> - drmm_add_final_kfree(drm, priv);
> -
> ret = drmm_mode_config_init(drm);
> if (ret)
> return ret;
> --
> 2.25.1
>
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 35/44] drm/ingenic: Don't set drm_device->dev_private
2020-04-03 13:58 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-08 8:00 ` Sam Ravnborg
-1 siblings, 0 replies; 262+ messages in thread
From: Sam Ravnborg @ 2020-04-08 8:00 UTC (permalink / raw)
To: Daniel Vetter
Cc: Paul Cercueil, Daniel Vetter, Intel Graphics Development,
DRI Development
On Fri, Apr 03, 2020 at 03:58:19PM +0200, Daniel Vetter wrote:
> Entirely not used, just copypasta.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Paul Cercueil <paul@crapouillou.net>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
> ---
> drivers/gpu/drm/ingenic/ingenic-drm.c | 1 -
> 1 file changed, 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/ingenic/ingenic-drm.c b/drivers/gpu/drm/ingenic/ingenic-drm.c
> index bb62d8e93985..3386270cb8a3 100644
> --- a/drivers/gpu/drm/ingenic/ingenic-drm.c
> +++ b/drivers/gpu/drm/ingenic/ingenic-drm.c
> @@ -622,7 +622,6 @@ static int ingenic_drm_probe(struct platform_device *pdev)
> priv->soc_info = soc_info;
> priv->dev = dev;
> drm = &priv->drm;
> - drm->dev_private = priv;
>
> platform_set_drvdata(pdev, priv);
>
> --
> 2.25.1
>
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [Intel-gfx] [PATCH 35/44] drm/ingenic: Don't set drm_device->dev_private
@ 2020-04-08 8:00 ` Sam Ravnborg
0 siblings, 0 replies; 262+ messages in thread
From: Sam Ravnborg @ 2020-04-08 8:00 UTC (permalink / raw)
To: Daniel Vetter
Cc: Paul Cercueil, Daniel Vetter, Intel Graphics Development,
DRI Development
On Fri, Apr 03, 2020 at 03:58:19PM +0200, Daniel Vetter wrote:
> Entirely not used, just copypasta.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Paul Cercueil <paul@crapouillou.net>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
> ---
> drivers/gpu/drm/ingenic/ingenic-drm.c | 1 -
> 1 file changed, 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/ingenic/ingenic-drm.c b/drivers/gpu/drm/ingenic/ingenic-drm.c
> index bb62d8e93985..3386270cb8a3 100644
> --- a/drivers/gpu/drm/ingenic/ingenic-drm.c
> +++ b/drivers/gpu/drm/ingenic/ingenic-drm.c
> @@ -622,7 +622,6 @@ static int ingenic_drm_probe(struct platform_device *pdev)
> priv->soc_info = soc_info;
> priv->dev = dev;
> drm = &priv->drm;
> - drm->dev_private = priv;
>
> platform_set_drvdata(pdev, priv);
>
> --
> 2.25.1
>
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 39/44] drm/cirrus: Use devm_drm_dev_alloc
2020-04-03 13:58 ` Daniel Vetter
(?)
@ 2020-04-08 8:01 ` Sam Ravnborg
-1 siblings, 0 replies; 262+ messages in thread
From: Sam Ravnborg @ 2020-04-08 8:01 UTC (permalink / raw)
To: Daniel Vetter
Cc: Intel Graphics Development, DRI Development, virtualization,
Gerd Hoffmann, Thomas Zimmermann, Dave Airlie, Daniel Vetter,
Emil Velikov
On Fri, Apr 03, 2020 at 03:58:23PM +0200, Daniel Vetter wrote:
> Already using devm_drm_dev_init, so very simple replacment.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Dave Airlie <airlied@redhat.com>
> Cc: Gerd Hoffmann <kraxel@redhat.com>
> Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
> Cc: Sam Ravnborg <sam@ravnborg.org>
> Cc: "Noralf Trønnes" <noralf@tronnes.org>
> Cc: Rob Herring <robh@kernel.org>
> Cc: Thomas Zimmermann <tzimmermann@suse.de>
> Cc: virtualization@lists.linux-foundation.org
> Cc: Emil Velikov <emil.velikov@collabora.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
> ---
> drivers/gpu/drm/cirrus/cirrus.c | 13 ++++---------
> 1 file changed, 4 insertions(+), 9 deletions(-)
>
> diff --git a/drivers/gpu/drm/cirrus/cirrus.c b/drivers/gpu/drm/cirrus/cirrus.c
> index a36269717c3b..4b65637147ba 100644
> --- a/drivers/gpu/drm/cirrus/cirrus.c
> +++ b/drivers/gpu/drm/cirrus/cirrus.c
> @@ -567,18 +567,13 @@ static int cirrus_pci_probe(struct pci_dev *pdev,
> return ret;
>
> ret = -ENOMEM;
> - cirrus = kzalloc(sizeof(*cirrus), GFP_KERNEL);
> - if (cirrus == NULL)
> - return ret;
> + cirrus = devm_drm_dev_alloc(&pdev->dev, &cirrus_driver,
> + struct cirrus_device, dev);
> + if (IS_ERR(cirrus))
> + return PTR_ERR(cirrus);
>
> dev = &cirrus->dev;
> - ret = devm_drm_dev_init(&pdev->dev, dev, &cirrus_driver);
> - if (ret) {
> - kfree(cirrus);
> - return ret;
> - }
> dev->dev_private = cirrus;
> - drmm_add_final_kfree(dev, cirrus);
>
> cirrus->vram = devm_ioremap(&pdev->dev, pci_resource_start(pdev, 0),
> pci_resource_len(pdev, 0));
> --
> 2.25.1
>
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 39/44] drm/cirrus: Use devm_drm_dev_alloc
@ 2020-04-08 8:01 ` Sam Ravnborg
0 siblings, 0 replies; 262+ messages in thread
From: Sam Ravnborg @ 2020-04-08 8:01 UTC (permalink / raw)
To: Daniel Vetter
Cc: Intel Graphics Development, DRI Development, virtualization,
Gerd Hoffmann, Thomas Zimmermann, Dave Airlie, Daniel Vetter,
Emil Velikov
On Fri, Apr 03, 2020 at 03:58:23PM +0200, Daniel Vetter wrote:
> Already using devm_drm_dev_init, so very simple replacment.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Dave Airlie <airlied@redhat.com>
> Cc: Gerd Hoffmann <kraxel@redhat.com>
> Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
> Cc: Sam Ravnborg <sam@ravnborg.org>
> Cc: "Noralf Trønnes" <noralf@tronnes.org>
> Cc: Rob Herring <robh@kernel.org>
> Cc: Thomas Zimmermann <tzimmermann@suse.de>
> Cc: virtualization@lists.linux-foundation.org
> Cc: Emil Velikov <emil.velikov@collabora.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
> ---
> drivers/gpu/drm/cirrus/cirrus.c | 13 ++++---------
> 1 file changed, 4 insertions(+), 9 deletions(-)
>
> diff --git a/drivers/gpu/drm/cirrus/cirrus.c b/drivers/gpu/drm/cirrus/cirrus.c
> index a36269717c3b..4b65637147ba 100644
> --- a/drivers/gpu/drm/cirrus/cirrus.c
> +++ b/drivers/gpu/drm/cirrus/cirrus.c
> @@ -567,18 +567,13 @@ static int cirrus_pci_probe(struct pci_dev *pdev,
> return ret;
>
> ret = -ENOMEM;
> - cirrus = kzalloc(sizeof(*cirrus), GFP_KERNEL);
> - if (cirrus == NULL)
> - return ret;
> + cirrus = devm_drm_dev_alloc(&pdev->dev, &cirrus_driver,
> + struct cirrus_device, dev);
> + if (IS_ERR(cirrus))
> + return PTR_ERR(cirrus);
>
> dev = &cirrus->dev;
> - ret = devm_drm_dev_init(&pdev->dev, dev, &cirrus_driver);
> - if (ret) {
> - kfree(cirrus);
> - return ret;
> - }
> dev->dev_private = cirrus;
> - drmm_add_final_kfree(dev, cirrus);
>
> cirrus->vram = devm_ioremap(&pdev->dev, pci_resource_start(pdev, 0),
> pci_resource_len(pdev, 0));
> --
> 2.25.1
>
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [Intel-gfx] [PATCH 39/44] drm/cirrus: Use devm_drm_dev_alloc
@ 2020-04-08 8:01 ` Sam Ravnborg
0 siblings, 0 replies; 262+ messages in thread
From: Sam Ravnborg @ 2020-04-08 8:01 UTC (permalink / raw)
To: Daniel Vetter
Cc: Intel Graphics Development, DRI Development, virtualization,
Gerd Hoffmann, Thomas Zimmermann, Dave Airlie, Daniel Vetter,
Emil Velikov
On Fri, Apr 03, 2020 at 03:58:23PM +0200, Daniel Vetter wrote:
> Already using devm_drm_dev_init, so very simple replacment.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Dave Airlie <airlied@redhat.com>
> Cc: Gerd Hoffmann <kraxel@redhat.com>
> Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
> Cc: Sam Ravnborg <sam@ravnborg.org>
> Cc: "Noralf Trønnes" <noralf@tronnes.org>
> Cc: Rob Herring <robh@kernel.org>
> Cc: Thomas Zimmermann <tzimmermann@suse.de>
> Cc: virtualization@lists.linux-foundation.org
> Cc: Emil Velikov <emil.velikov@collabora.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
> ---
> drivers/gpu/drm/cirrus/cirrus.c | 13 ++++---------
> 1 file changed, 4 insertions(+), 9 deletions(-)
>
> diff --git a/drivers/gpu/drm/cirrus/cirrus.c b/drivers/gpu/drm/cirrus/cirrus.c
> index a36269717c3b..4b65637147ba 100644
> --- a/drivers/gpu/drm/cirrus/cirrus.c
> +++ b/drivers/gpu/drm/cirrus/cirrus.c
> @@ -567,18 +567,13 @@ static int cirrus_pci_probe(struct pci_dev *pdev,
> return ret;
>
> ret = -ENOMEM;
> - cirrus = kzalloc(sizeof(*cirrus), GFP_KERNEL);
> - if (cirrus == NULL)
> - return ret;
> + cirrus = devm_drm_dev_alloc(&pdev->dev, &cirrus_driver,
> + struct cirrus_device, dev);
> + if (IS_ERR(cirrus))
> + return PTR_ERR(cirrus);
>
> dev = &cirrus->dev;
> - ret = devm_drm_dev_init(&pdev->dev, dev, &cirrus_driver);
> - if (ret) {
> - kfree(cirrus);
> - return ret;
> - }
> dev->dev_private = cirrus;
> - drmm_add_final_kfree(dev, cirrus);
>
> cirrus->vram = devm_ioremap(&pdev->dev, pci_resource_start(pdev, 0),
> pci_resource_len(pdev, 0));
> --
> 2.25.1
>
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 40/44] drm/cirrus: Don't use drm_device->dev_private
2020-04-03 13:58 ` Daniel Vetter
(?)
@ 2020-04-08 8:01 ` Sam Ravnborg
-1 siblings, 0 replies; 262+ messages in thread
From: Sam Ravnborg @ 2020-04-08 8:01 UTC (permalink / raw)
To: Daniel Vetter
Cc: Intel Graphics Development, DRI Development, virtualization,
Gerd Hoffmann, Thomas Zimmermann, Dave Airlie, Daniel Vetter
On Fri, Apr 03, 2020 at 03:58:24PM +0200, Daniel Vetter wrote:
> Upcasting using a container_of macro is more typesafe, faster and
> easier for the compiler to optimize.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Dave Airlie <airlied@redhat.com>
> Cc: Gerd Hoffmann <kraxel@redhat.com>
> Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
> Cc: "Noralf Trønnes" <noralf@tronnes.org>
> Cc: Sam Ravnborg <sam@ravnborg.org>
> Cc: Eric Anholt <eric@anholt.net>
> Cc: Thomas Zimmermann <tzimmermann@suse.de>
> Cc: virtualization@lists.linux-foundation.org
Acked-by: Sam Ravnborg <sam@ravnborg.org>
> ---
> drivers/gpu/drm/cirrus/cirrus.c | 9 +++++----
> 1 file changed, 5 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/gpu/drm/cirrus/cirrus.c b/drivers/gpu/drm/cirrus/cirrus.c
> index 4b65637147ba..744a8e337e41 100644
> --- a/drivers/gpu/drm/cirrus/cirrus.c
> +++ b/drivers/gpu/drm/cirrus/cirrus.c
> @@ -59,6 +59,8 @@ struct cirrus_device {
> void __iomem *mmio;
> };
>
> +#define to_cirrus(_dev) container_of(_dev, struct cirrus_device, dev)
> +
> /* ------------------------------------------------------------------ */
> /*
> * The meat of this driver. The core passes us a mode and we have to program
> @@ -311,7 +313,7 @@ static int cirrus_mode_set(struct cirrus_device *cirrus,
> static int cirrus_fb_blit_rect(struct drm_framebuffer *fb,
> struct drm_rect *rect)
> {
> - struct cirrus_device *cirrus = fb->dev->dev_private;
> + struct cirrus_device *cirrus = to_cirrus(fb->dev);
> void *vmap;
> int idx, ret;
>
> @@ -436,7 +438,7 @@ static void cirrus_pipe_enable(struct drm_simple_display_pipe *pipe,
> struct drm_crtc_state *crtc_state,
> struct drm_plane_state *plane_state)
> {
> - struct cirrus_device *cirrus = pipe->crtc.dev->dev_private;
> + struct cirrus_device *cirrus = to_cirrus(pipe->crtc.dev);
>
> cirrus_mode_set(cirrus, &crtc_state->mode, plane_state->fb);
> cirrus_fb_blit_fullscreen(plane_state->fb);
> @@ -445,7 +447,7 @@ static void cirrus_pipe_enable(struct drm_simple_display_pipe *pipe,
> static void cirrus_pipe_update(struct drm_simple_display_pipe *pipe,
> struct drm_plane_state *old_state)
> {
> - struct cirrus_device *cirrus = pipe->crtc.dev->dev_private;
> + struct cirrus_device *cirrus = to_cirrus(pipe->crtc.dev);
> struct drm_plane_state *state = pipe->plane.state;
> struct drm_crtc *crtc = &pipe->crtc;
> struct drm_rect rect;
> @@ -573,7 +575,6 @@ static int cirrus_pci_probe(struct pci_dev *pdev,
> return PTR_ERR(cirrus);
>
> dev = &cirrus->dev;
> - dev->dev_private = cirrus;
>
> cirrus->vram = devm_ioremap(&pdev->dev, pci_resource_start(pdev, 0),
> pci_resource_len(pdev, 0));
> --
> 2.25.1
>
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 40/44] drm/cirrus: Don't use drm_device->dev_private
@ 2020-04-08 8:01 ` Sam Ravnborg
0 siblings, 0 replies; 262+ messages in thread
From: Sam Ravnborg @ 2020-04-08 8:01 UTC (permalink / raw)
To: Daniel Vetter
Cc: Intel Graphics Development, DRI Development, virtualization,
Gerd Hoffmann, Thomas Zimmermann, Dave Airlie, Daniel Vetter
On Fri, Apr 03, 2020 at 03:58:24PM +0200, Daniel Vetter wrote:
> Upcasting using a container_of macro is more typesafe, faster and
> easier for the compiler to optimize.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Dave Airlie <airlied@redhat.com>
> Cc: Gerd Hoffmann <kraxel@redhat.com>
> Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
> Cc: "Noralf Trønnes" <noralf@tronnes.org>
> Cc: Sam Ravnborg <sam@ravnborg.org>
> Cc: Eric Anholt <eric@anholt.net>
> Cc: Thomas Zimmermann <tzimmermann@suse.de>
> Cc: virtualization@lists.linux-foundation.org
Acked-by: Sam Ravnborg <sam@ravnborg.org>
> ---
> drivers/gpu/drm/cirrus/cirrus.c | 9 +++++----
> 1 file changed, 5 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/gpu/drm/cirrus/cirrus.c b/drivers/gpu/drm/cirrus/cirrus.c
> index 4b65637147ba..744a8e337e41 100644
> --- a/drivers/gpu/drm/cirrus/cirrus.c
> +++ b/drivers/gpu/drm/cirrus/cirrus.c
> @@ -59,6 +59,8 @@ struct cirrus_device {
> void __iomem *mmio;
> };
>
> +#define to_cirrus(_dev) container_of(_dev, struct cirrus_device, dev)
> +
> /* ------------------------------------------------------------------ */
> /*
> * The meat of this driver. The core passes us a mode and we have to program
> @@ -311,7 +313,7 @@ static int cirrus_mode_set(struct cirrus_device *cirrus,
> static int cirrus_fb_blit_rect(struct drm_framebuffer *fb,
> struct drm_rect *rect)
> {
> - struct cirrus_device *cirrus = fb->dev->dev_private;
> + struct cirrus_device *cirrus = to_cirrus(fb->dev);
> void *vmap;
> int idx, ret;
>
> @@ -436,7 +438,7 @@ static void cirrus_pipe_enable(struct drm_simple_display_pipe *pipe,
> struct drm_crtc_state *crtc_state,
> struct drm_plane_state *plane_state)
> {
> - struct cirrus_device *cirrus = pipe->crtc.dev->dev_private;
> + struct cirrus_device *cirrus = to_cirrus(pipe->crtc.dev);
>
> cirrus_mode_set(cirrus, &crtc_state->mode, plane_state->fb);
> cirrus_fb_blit_fullscreen(plane_state->fb);
> @@ -445,7 +447,7 @@ static void cirrus_pipe_enable(struct drm_simple_display_pipe *pipe,
> static void cirrus_pipe_update(struct drm_simple_display_pipe *pipe,
> struct drm_plane_state *old_state)
> {
> - struct cirrus_device *cirrus = pipe->crtc.dev->dev_private;
> + struct cirrus_device *cirrus = to_cirrus(pipe->crtc.dev);
> struct drm_plane_state *state = pipe->plane.state;
> struct drm_crtc *crtc = &pipe->crtc;
> struct drm_rect rect;
> @@ -573,7 +575,6 @@ static int cirrus_pci_probe(struct pci_dev *pdev,
> return PTR_ERR(cirrus);
>
> dev = &cirrus->dev;
> - dev->dev_private = cirrus;
>
> cirrus->vram = devm_ioremap(&pdev->dev, pci_resource_start(pdev, 0),
> pci_resource_len(pdev, 0));
> --
> 2.25.1
>
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [Intel-gfx] [PATCH 40/44] drm/cirrus: Don't use drm_device->dev_private
@ 2020-04-08 8:01 ` Sam Ravnborg
0 siblings, 0 replies; 262+ messages in thread
From: Sam Ravnborg @ 2020-04-08 8:01 UTC (permalink / raw)
To: Daniel Vetter
Cc: Intel Graphics Development, DRI Development, virtualization,
Gerd Hoffmann, Thomas Zimmermann, Dave Airlie, Daniel Vetter
On Fri, Apr 03, 2020 at 03:58:24PM +0200, Daniel Vetter wrote:
> Upcasting using a container_of macro is more typesafe, faster and
> easier for the compiler to optimize.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Dave Airlie <airlied@redhat.com>
> Cc: Gerd Hoffmann <kraxel@redhat.com>
> Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
> Cc: "Noralf Trønnes" <noralf@tronnes.org>
> Cc: Sam Ravnborg <sam@ravnborg.org>
> Cc: Eric Anholt <eric@anholt.net>
> Cc: Thomas Zimmermann <tzimmermann@suse.de>
> Cc: virtualization@lists.linux-foundation.org
Acked-by: Sam Ravnborg <sam@ravnborg.org>
> ---
> drivers/gpu/drm/cirrus/cirrus.c | 9 +++++----
> 1 file changed, 5 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/gpu/drm/cirrus/cirrus.c b/drivers/gpu/drm/cirrus/cirrus.c
> index 4b65637147ba..744a8e337e41 100644
> --- a/drivers/gpu/drm/cirrus/cirrus.c
> +++ b/drivers/gpu/drm/cirrus/cirrus.c
> @@ -59,6 +59,8 @@ struct cirrus_device {
> void __iomem *mmio;
> };
>
> +#define to_cirrus(_dev) container_of(_dev, struct cirrus_device, dev)
> +
> /* ------------------------------------------------------------------ */
> /*
> * The meat of this driver. The core passes us a mode and we have to program
> @@ -311,7 +313,7 @@ static int cirrus_mode_set(struct cirrus_device *cirrus,
> static int cirrus_fb_blit_rect(struct drm_framebuffer *fb,
> struct drm_rect *rect)
> {
> - struct cirrus_device *cirrus = fb->dev->dev_private;
> + struct cirrus_device *cirrus = to_cirrus(fb->dev);
> void *vmap;
> int idx, ret;
>
> @@ -436,7 +438,7 @@ static void cirrus_pipe_enable(struct drm_simple_display_pipe *pipe,
> struct drm_crtc_state *crtc_state,
> struct drm_plane_state *plane_state)
> {
> - struct cirrus_device *cirrus = pipe->crtc.dev->dev_private;
> + struct cirrus_device *cirrus = to_cirrus(pipe->crtc.dev);
>
> cirrus_mode_set(cirrus, &crtc_state->mode, plane_state->fb);
> cirrus_fb_blit_fullscreen(plane_state->fb);
> @@ -445,7 +447,7 @@ static void cirrus_pipe_enable(struct drm_simple_display_pipe *pipe,
> static void cirrus_pipe_update(struct drm_simple_display_pipe *pipe,
> struct drm_plane_state *old_state)
> {
> - struct cirrus_device *cirrus = pipe->crtc.dev->dev_private;
> + struct cirrus_device *cirrus = to_cirrus(pipe->crtc.dev);
> struct drm_plane_state *state = pipe->plane.state;
> struct drm_crtc *crtc = &pipe->crtc;
> struct drm_rect rect;
> @@ -573,7 +575,6 @@ static int cirrus_pci_probe(struct pci_dev *pdev,
> return PTR_ERR(cirrus);
>
> dev = &cirrus->dev;
> - dev->dev_private = cirrus;
>
> cirrus->vram = devm_ioremap(&pdev->dev, pci_resource_start(pdev, 0),
> pci_resource_len(pdev, 0));
> --
> 2.25.1
>
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 40/44] drm/cirrus: Don't use drm_device->dev_private
2020-04-06 11:58 ` Thomas Zimmermann
(?)
@ 2020-04-08 8:04 ` Sam Ravnborg
-1 siblings, 0 replies; 262+ messages in thread
From: Sam Ravnborg @ 2020-04-08 8:04 UTC (permalink / raw)
To: Thomas Zimmermann
Cc: Daniel Vetter, Intel Graphics Development, DRI Development,
virtualization, Gerd Hoffmann, Daniel Vetter, Dave Airlie
Hi Thomas.
On Mon, Apr 06, 2020 at 01:58:54PM +0200, Thomas Zimmermann wrote:
>
>
> Am 03.04.20 um 15:58 schrieb Daniel Vetter:
> > Upcasting using a container_of macro is more typesafe, faster and
> > easier for the compiler to optimize.
> >
> > Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> > Cc: Dave Airlie <airlied@redhat.com>
> > Cc: Gerd Hoffmann <kraxel@redhat.com>
> > Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
> > Cc: "Noralf Trønnes" <noralf@tronnes.org>
> > Cc: Sam Ravnborg <sam@ravnborg.org>
> > Cc: Eric Anholt <eric@anholt.net>
> > Cc: Thomas Zimmermann <tzimmermann@suse.de>
> > Cc: virtualization@lists.linux-foundation.org
> > ---
> > drivers/gpu/drm/cirrus/cirrus.c | 9 +++++----
> > 1 file changed, 5 insertions(+), 4 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/cirrus/cirrus.c b/drivers/gpu/drm/cirrus/cirrus.c
> > index 4b65637147ba..744a8e337e41 100644
> > --- a/drivers/gpu/drm/cirrus/cirrus.c
> > +++ b/drivers/gpu/drm/cirrus/cirrus.c
> > @@ -59,6 +59,8 @@ struct cirrus_device {
> > void __iomem *mmio;
> > };
> >
> > +#define to_cirrus(_dev) container_of(_dev, struct cirrus_device, dev)
> > +
>
> Maybe to_cirrus_device() ? I had the same comment for vbox and I think
> it applies to all patches.
The variable name is consistently using the name "cirrus" - so my
personal preference is to_cirrus().
Also IMO struct cirrus_device is misnamed. It is more than a device.
Sam
>
> Best regards
> Thomas
>
> > /* ------------------------------------------------------------------ */
> > /*
> > * The meat of this driver. The core passes us a mode and we have to program
> > @@ -311,7 +313,7 @@ static int cirrus_mode_set(struct cirrus_device *cirrus,
> > static int cirrus_fb_blit_rect(struct drm_framebuffer *fb,
> > struct drm_rect *rect)
> > {
> > - struct cirrus_device *cirrus = fb->dev->dev_private;
> > + struct cirrus_device *cirrus = to_cirrus(fb->dev);
> > void *vmap;
> > int idx, ret;
> >
> > @@ -436,7 +438,7 @@ static void cirrus_pipe_enable(struct drm_simple_display_pipe *pipe,
> > struct drm_crtc_state *crtc_state,
> > struct drm_plane_state *plane_state)
> > {
> > - struct cirrus_device *cirrus = pipe->crtc.dev->dev_private;
> > + struct cirrus_device *cirrus = to_cirrus(pipe->crtc.dev);
> >
> > cirrus_mode_set(cirrus, &crtc_state->mode, plane_state->fb);
> > cirrus_fb_blit_fullscreen(plane_state->fb);
> > @@ -445,7 +447,7 @@ static void cirrus_pipe_enable(struct drm_simple_display_pipe *pipe,
> > static void cirrus_pipe_update(struct drm_simple_display_pipe *pipe,
> > struct drm_plane_state *old_state)
> > {
> > - struct cirrus_device *cirrus = pipe->crtc.dev->dev_private;
> > + struct cirrus_device *cirrus = to_cirrus(pipe->crtc.dev);
> > struct drm_plane_state *state = pipe->plane.state;
> > struct drm_crtc *crtc = &pipe->crtc;
> > struct drm_rect rect;
> > @@ -573,7 +575,6 @@ static int cirrus_pci_probe(struct pci_dev *pdev,
> > return PTR_ERR(cirrus);
> >
> > dev = &cirrus->dev;
> > - dev->dev_private = cirrus;
> >
> > cirrus->vram = devm_ioremap(&pdev->dev, pci_resource_start(pdev, 0),
> > pci_resource_len(pdev, 0));
> >
>
> --
> Thomas Zimmermann
> Graphics Driver Developer
> SUSE Software Solutions Germany GmbH
> Maxfeldstr. 5, 90409 Nürnberg, Germany
> (HRB 36809, AG Nürnberg)
> Geschäftsführer: Felix Imendörffer
>
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 40/44] drm/cirrus: Don't use drm_device->dev_private
@ 2020-04-08 8:04 ` Sam Ravnborg
0 siblings, 0 replies; 262+ messages in thread
From: Sam Ravnborg @ 2020-04-08 8:04 UTC (permalink / raw)
To: Thomas Zimmermann
Cc: Daniel Vetter, Intel Graphics Development, DRI Development,
virtualization, Gerd Hoffmann, Daniel Vetter, Dave Airlie
Hi Thomas.
On Mon, Apr 06, 2020 at 01:58:54PM +0200, Thomas Zimmermann wrote:
>
>
> Am 03.04.20 um 15:58 schrieb Daniel Vetter:
> > Upcasting using a container_of macro is more typesafe, faster and
> > easier for the compiler to optimize.
> >
> > Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> > Cc: Dave Airlie <airlied@redhat.com>
> > Cc: Gerd Hoffmann <kraxel@redhat.com>
> > Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
> > Cc: "Noralf Trønnes" <noralf@tronnes.org>
> > Cc: Sam Ravnborg <sam@ravnborg.org>
> > Cc: Eric Anholt <eric@anholt.net>
> > Cc: Thomas Zimmermann <tzimmermann@suse.de>
> > Cc: virtualization@lists.linux-foundation.org
> > ---
> > drivers/gpu/drm/cirrus/cirrus.c | 9 +++++----
> > 1 file changed, 5 insertions(+), 4 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/cirrus/cirrus.c b/drivers/gpu/drm/cirrus/cirrus.c
> > index 4b65637147ba..744a8e337e41 100644
> > --- a/drivers/gpu/drm/cirrus/cirrus.c
> > +++ b/drivers/gpu/drm/cirrus/cirrus.c
> > @@ -59,6 +59,8 @@ struct cirrus_device {
> > void __iomem *mmio;
> > };
> >
> > +#define to_cirrus(_dev) container_of(_dev, struct cirrus_device, dev)
> > +
>
> Maybe to_cirrus_device() ? I had the same comment for vbox and I think
> it applies to all patches.
The variable name is consistently using the name "cirrus" - so my
personal preference is to_cirrus().
Also IMO struct cirrus_device is misnamed. It is more than a device.
Sam
>
> Best regards
> Thomas
>
> > /* ------------------------------------------------------------------ */
> > /*
> > * The meat of this driver. The core passes us a mode and we have to program
> > @@ -311,7 +313,7 @@ static int cirrus_mode_set(struct cirrus_device *cirrus,
> > static int cirrus_fb_blit_rect(struct drm_framebuffer *fb,
> > struct drm_rect *rect)
> > {
> > - struct cirrus_device *cirrus = fb->dev->dev_private;
> > + struct cirrus_device *cirrus = to_cirrus(fb->dev);
> > void *vmap;
> > int idx, ret;
> >
> > @@ -436,7 +438,7 @@ static void cirrus_pipe_enable(struct drm_simple_display_pipe *pipe,
> > struct drm_crtc_state *crtc_state,
> > struct drm_plane_state *plane_state)
> > {
> > - struct cirrus_device *cirrus = pipe->crtc.dev->dev_private;
> > + struct cirrus_device *cirrus = to_cirrus(pipe->crtc.dev);
> >
> > cirrus_mode_set(cirrus, &crtc_state->mode, plane_state->fb);
> > cirrus_fb_blit_fullscreen(plane_state->fb);
> > @@ -445,7 +447,7 @@ static void cirrus_pipe_enable(struct drm_simple_display_pipe *pipe,
> > static void cirrus_pipe_update(struct drm_simple_display_pipe *pipe,
> > struct drm_plane_state *old_state)
> > {
> > - struct cirrus_device *cirrus = pipe->crtc.dev->dev_private;
> > + struct cirrus_device *cirrus = to_cirrus(pipe->crtc.dev);
> > struct drm_plane_state *state = pipe->plane.state;
> > struct drm_crtc *crtc = &pipe->crtc;
> > struct drm_rect rect;
> > @@ -573,7 +575,6 @@ static int cirrus_pci_probe(struct pci_dev *pdev,
> > return PTR_ERR(cirrus);
> >
> > dev = &cirrus->dev;
> > - dev->dev_private = cirrus;
> >
> > cirrus->vram = devm_ioremap(&pdev->dev, pci_resource_start(pdev, 0),
> > pci_resource_len(pdev, 0));
> >
>
> --
> Thomas Zimmermann
> Graphics Driver Developer
> SUSE Software Solutions Germany GmbH
> Maxfeldstr. 5, 90409 Nürnberg, Germany
> (HRB 36809, AG Nürnberg)
> Geschäftsführer: Felix Imendörffer
>
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [Intel-gfx] [PATCH 40/44] drm/cirrus: Don't use drm_device->dev_private
@ 2020-04-08 8:04 ` Sam Ravnborg
0 siblings, 0 replies; 262+ messages in thread
From: Sam Ravnborg @ 2020-04-08 8:04 UTC (permalink / raw)
To: Thomas Zimmermann
Cc: Daniel Vetter, Intel Graphics Development, DRI Development,
virtualization, Gerd Hoffmann, Daniel Vetter, Dave Airlie
Hi Thomas.
On Mon, Apr 06, 2020 at 01:58:54PM +0200, Thomas Zimmermann wrote:
>
>
> Am 03.04.20 um 15:58 schrieb Daniel Vetter:
> > Upcasting using a container_of macro is more typesafe, faster and
> > easier for the compiler to optimize.
> >
> > Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> > Cc: Dave Airlie <airlied@redhat.com>
> > Cc: Gerd Hoffmann <kraxel@redhat.com>
> > Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
> > Cc: "Noralf Trønnes" <noralf@tronnes.org>
> > Cc: Sam Ravnborg <sam@ravnborg.org>
> > Cc: Eric Anholt <eric@anholt.net>
> > Cc: Thomas Zimmermann <tzimmermann@suse.de>
> > Cc: virtualization@lists.linux-foundation.org
> > ---
> > drivers/gpu/drm/cirrus/cirrus.c | 9 +++++----
> > 1 file changed, 5 insertions(+), 4 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/cirrus/cirrus.c b/drivers/gpu/drm/cirrus/cirrus.c
> > index 4b65637147ba..744a8e337e41 100644
> > --- a/drivers/gpu/drm/cirrus/cirrus.c
> > +++ b/drivers/gpu/drm/cirrus/cirrus.c
> > @@ -59,6 +59,8 @@ struct cirrus_device {
> > void __iomem *mmio;
> > };
> >
> > +#define to_cirrus(_dev) container_of(_dev, struct cirrus_device, dev)
> > +
>
> Maybe to_cirrus_device() ? I had the same comment for vbox and I think
> it applies to all patches.
The variable name is consistently using the name "cirrus" - so my
personal preference is to_cirrus().
Also IMO struct cirrus_device is misnamed. It is more than a device.
Sam
>
> Best regards
> Thomas
>
> > /* ------------------------------------------------------------------ */
> > /*
> > * The meat of this driver. The core passes us a mode and we have to program
> > @@ -311,7 +313,7 @@ static int cirrus_mode_set(struct cirrus_device *cirrus,
> > static int cirrus_fb_blit_rect(struct drm_framebuffer *fb,
> > struct drm_rect *rect)
> > {
> > - struct cirrus_device *cirrus = fb->dev->dev_private;
> > + struct cirrus_device *cirrus = to_cirrus(fb->dev);
> > void *vmap;
> > int idx, ret;
> >
> > @@ -436,7 +438,7 @@ static void cirrus_pipe_enable(struct drm_simple_display_pipe *pipe,
> > struct drm_crtc_state *crtc_state,
> > struct drm_plane_state *plane_state)
> > {
> > - struct cirrus_device *cirrus = pipe->crtc.dev->dev_private;
> > + struct cirrus_device *cirrus = to_cirrus(pipe->crtc.dev);
> >
> > cirrus_mode_set(cirrus, &crtc_state->mode, plane_state->fb);
> > cirrus_fb_blit_fullscreen(plane_state->fb);
> > @@ -445,7 +447,7 @@ static void cirrus_pipe_enable(struct drm_simple_display_pipe *pipe,
> > static void cirrus_pipe_update(struct drm_simple_display_pipe *pipe,
> > struct drm_plane_state *old_state)
> > {
> > - struct cirrus_device *cirrus = pipe->crtc.dev->dev_private;
> > + struct cirrus_device *cirrus = to_cirrus(pipe->crtc.dev);
> > struct drm_plane_state *state = pipe->plane.state;
> > struct drm_crtc *crtc = &pipe->crtc;
> > struct drm_rect rect;
> > @@ -573,7 +575,6 @@ static int cirrus_pci_probe(struct pci_dev *pdev,
> > return PTR_ERR(cirrus);
> >
> > dev = &cirrus->dev;
> > - dev->dev_private = cirrus;
> >
> > cirrus->vram = devm_ioremap(&pdev->dev, pci_resource_start(pdev, 0),
> > pci_resource_len(pdev, 0));
> >
>
> --
> Thomas Zimmermann
> Graphics Driver Developer
> SUSE Software Solutions Germany GmbH
> Maxfeldstr. 5, 90409 Nürnberg, Germany
> (HRB 36809, AG Nürnberg)
> Geschäftsführer: Felix Imendörffer
>
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 00/44] devm_drm_dev_alloc, no more drmm_add_final_kfree
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-08 8:08 ` Sam Ravnborg
-1 siblings, 0 replies; 262+ messages in thread
From: Sam Ravnborg @ 2020-04-08 8:08 UTC (permalink / raw)
To: Daniel Vetter; +Cc: Intel Graphics Development, DRI Development
Hi Daniel.
Made specific reply to several patches.
This bunch:
> drm/st7735r: Use devm_drm_dev_alloc
> drm/st7586: Use devm_drm_dev_alloc
> drm/repaper: Use devm_drm_dev_alloc
> drm/mi0283qt: Use devm_drm_dev_alloc
> drm/ili9486: Use devm_drm_dev_alloc
> drm/ili9341: Use devm_drm_dev_alloc
> drm/ili9225: Use devm_drm_dev_alloc
> drm/hx8357d: Use devm_drm_dev_alloc
> drm/gm12u320: Use devm_drm_dev_alloc
> drm/gm12u320: Don't use drm_device->dev_private
are all:
Acked-by: Sam Ravnborg <sam@ravnborg.org>
I will take a look at patch 44 later today.
I steered away from the vgem, i915 stuff on purpose.
I leave that to more competent persons.
Sam
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^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [Intel-gfx] [PATCH 00/44] devm_drm_dev_alloc, no more drmm_add_final_kfree
@ 2020-04-08 8:08 ` Sam Ravnborg
0 siblings, 0 replies; 262+ messages in thread
From: Sam Ravnborg @ 2020-04-08 8:08 UTC (permalink / raw)
To: Daniel Vetter; +Cc: Intel Graphics Development, DRI Development
Hi Daniel.
Made specific reply to several patches.
This bunch:
> drm/st7735r: Use devm_drm_dev_alloc
> drm/st7586: Use devm_drm_dev_alloc
> drm/repaper: Use devm_drm_dev_alloc
> drm/mi0283qt: Use devm_drm_dev_alloc
> drm/ili9486: Use devm_drm_dev_alloc
> drm/ili9341: Use devm_drm_dev_alloc
> drm/ili9225: Use devm_drm_dev_alloc
> drm/hx8357d: Use devm_drm_dev_alloc
> drm/gm12u320: Use devm_drm_dev_alloc
> drm/gm12u320: Don't use drm_device->dev_private
are all:
Acked-by: Sam Ravnborg <sam@ravnborg.org>
I will take a look at patch 44 later today.
I steered away from the vgem, i915 stuff on purpose.
I leave that to more competent persons.
Sam
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 36/44] drm/komeda: use devm_drm_dev_alloc
2020-04-03 13:58 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-08 8:40 ` james qian wang (Arm Technology China)
-1 siblings, 0 replies; 262+ messages in thread
From: james qian wang (Arm Technology China) @ 2020-04-08 8:40 UTC (permalink / raw)
To: Daniel Vetter
Cc: Mihail Atanassov, Intel Graphics Development, Liviu Dudau,
DRI Development, Daniel Vetter, nd
On Fri, Apr 03, 2020 at 09:58:20PM +0800, Daniel Vetter wrote:
> Komeda uses the component framework, which does open/close a new
> devres group around all the bind callbacks. Which means we can use
> devm_ functions for managing the drm_device cleanup, with leaking
> stuff in case of deferred probes or other reasons to unbind
> components, or the component_master.
>
> Also note that this fixes a double-free in the probe unroll code, bot
> drm_dev_put and kfree(kms) result in the kms allocation getting freed.
>
> Aside: komeda_bind could be cleaned up a lot, devm_kfree is a bit
> redundant. Plus I'm not clear on why there's suballocations for
> mdrv->mdev and mdrv->kms. Plus I'm not sure the lifetimes are correct
> with all that devm_kzalloc usage ... That structure layout is also the
> reason why komeda still uses drm_device->dev_private and can't easily
> be replaced with a proper container_of upcasting. I'm pretty sure that
> there's endless amounts of hotunplug/hotremove bugs in there with all
> the unprotected dereferencing of drm_device->dev_private.
Hi Daniel:
Thank you for the patch.
Reviewed-by: James Qian Wang <james.qian.wang@arm.com>
For why komeda has two devices komeda_dev and komeda_kms_dev.
That because komeda treats drm_crtc/plane as virtual, which pick the real
komeda resources to satify the user's requirement. In the initial driver
design we want to clear the difference of these two class structures
so we defined two devices:
- komeda_dev:
managing the real komeda device and resources.
- komeda_kms_dev
the virtual device managing the drm related stuff like
komeda_crtc/plane.
And yes, even for that we don't need two sub-allocations, we are planing
to move the komeda_dev into the komeda_kms_dev or just merge two devices
together.
Thanks
James
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: "James (Qian) Wang" <james.qian.wang@arm.com>
> Cc: Liviu Dudau <liviu.dudau@arm.com>
> Cc: Mihail Atanassov <mihail.atanassov@arm.com>
> ---
> drivers/gpu/drm/arm/display/komeda/komeda_kms.c | 16 +++++-----------
> 1 file changed, 5 insertions(+), 11 deletions(-)
>
> diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_kms.c b/drivers/gpu/drm/arm/display/komeda/komeda_kms.c
> index 16dfd5cdb66c..6b85d5f4caa8 100644
> --- a/drivers/gpu/drm/arm/display/komeda/komeda_kms.c
> +++ b/drivers/gpu/drm/arm/display/komeda/komeda_kms.c
> @@ -261,18 +261,16 @@ static void komeda_kms_mode_config_init(struct komeda_kms_dev *kms,
>
> struct komeda_kms_dev *komeda_kms_attach(struct komeda_dev *mdev)
> {
> - struct komeda_kms_dev *kms = kzalloc(sizeof(*kms), GFP_KERNEL);
> + struct komeda_kms_dev *kms;
> struct drm_device *drm;
> int err;
>
> - if (!kms)
> - return ERR_PTR(-ENOMEM);
> + kms = devm_drm_dev_alloc(mdev->dev, &komeda_kms_driver,
> + struct komeda_kms_dev, base);
> + if (IS_ERR(kms))
> + return kms;
>
> drm = &kms->base;
> - err = drm_dev_init(drm, &komeda_kms_driver, mdev->dev);
> - if (err)
> - goto free_kms;
> - drmm_add_final_kfree(drm, kms);
>
> drm->dev_private = mdev;
>
> @@ -329,9 +327,6 @@ struct komeda_kms_dev *komeda_kms_attach(struct komeda_dev *mdev)
> drm_mode_config_cleanup(drm);
> komeda_kms_cleanup_private_objs(kms);
> drm->dev_private = NULL;
> - drm_dev_put(drm);
> -free_kms:
> - kfree(kms);
> return ERR_PTR(err);
> }
>
> @@ -348,5 +343,4 @@ void komeda_kms_detach(struct komeda_kms_dev *kms)
> drm_mode_config_cleanup(drm);
> komeda_kms_cleanup_private_objs(kms);
> drm->dev_private = NULL;
> - drm_dev_put(drm);
> }
> --
> 2.25.1
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [Intel-gfx] [PATCH 36/44] drm/komeda: use devm_drm_dev_alloc
@ 2020-04-08 8:40 ` james qian wang (Arm Technology China)
0 siblings, 0 replies; 262+ messages in thread
From: james qian wang (Arm Technology China) @ 2020-04-08 8:40 UTC (permalink / raw)
To: Daniel Vetter
Cc: Mihail Atanassov, Intel Graphics Development, DRI Development,
Daniel Vetter, nd
On Fri, Apr 03, 2020 at 09:58:20PM +0800, Daniel Vetter wrote:
> Komeda uses the component framework, which does open/close a new
> devres group around all the bind callbacks. Which means we can use
> devm_ functions for managing the drm_device cleanup, with leaking
> stuff in case of deferred probes or other reasons to unbind
> components, or the component_master.
>
> Also note that this fixes a double-free in the probe unroll code, bot
> drm_dev_put and kfree(kms) result in the kms allocation getting freed.
>
> Aside: komeda_bind could be cleaned up a lot, devm_kfree is a bit
> redundant. Plus I'm not clear on why there's suballocations for
> mdrv->mdev and mdrv->kms. Plus I'm not sure the lifetimes are correct
> with all that devm_kzalloc usage ... That structure layout is also the
> reason why komeda still uses drm_device->dev_private and can't easily
> be replaced with a proper container_of upcasting. I'm pretty sure that
> there's endless amounts of hotunplug/hotremove bugs in there with all
> the unprotected dereferencing of drm_device->dev_private.
Hi Daniel:
Thank you for the patch.
Reviewed-by: James Qian Wang <james.qian.wang@arm.com>
For why komeda has two devices komeda_dev and komeda_kms_dev.
That because komeda treats drm_crtc/plane as virtual, which pick the real
komeda resources to satify the user's requirement. In the initial driver
design we want to clear the difference of these two class structures
so we defined two devices:
- komeda_dev:
managing the real komeda device and resources.
- komeda_kms_dev
the virtual device managing the drm related stuff like
komeda_crtc/plane.
And yes, even for that we don't need two sub-allocations, we are planing
to move the komeda_dev into the komeda_kms_dev or just merge two devices
together.
Thanks
James
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: "James (Qian) Wang" <james.qian.wang@arm.com>
> Cc: Liviu Dudau <liviu.dudau@arm.com>
> Cc: Mihail Atanassov <mihail.atanassov@arm.com>
> ---
> drivers/gpu/drm/arm/display/komeda/komeda_kms.c | 16 +++++-----------
> 1 file changed, 5 insertions(+), 11 deletions(-)
>
> diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_kms.c b/drivers/gpu/drm/arm/display/komeda/komeda_kms.c
> index 16dfd5cdb66c..6b85d5f4caa8 100644
> --- a/drivers/gpu/drm/arm/display/komeda/komeda_kms.c
> +++ b/drivers/gpu/drm/arm/display/komeda/komeda_kms.c
> @@ -261,18 +261,16 @@ static void komeda_kms_mode_config_init(struct komeda_kms_dev *kms,
>
> struct komeda_kms_dev *komeda_kms_attach(struct komeda_dev *mdev)
> {
> - struct komeda_kms_dev *kms = kzalloc(sizeof(*kms), GFP_KERNEL);
> + struct komeda_kms_dev *kms;
> struct drm_device *drm;
> int err;
>
> - if (!kms)
> - return ERR_PTR(-ENOMEM);
> + kms = devm_drm_dev_alloc(mdev->dev, &komeda_kms_driver,
> + struct komeda_kms_dev, base);
> + if (IS_ERR(kms))
> + return kms;
>
> drm = &kms->base;
> - err = drm_dev_init(drm, &komeda_kms_driver, mdev->dev);
> - if (err)
> - goto free_kms;
> - drmm_add_final_kfree(drm, kms);
>
> drm->dev_private = mdev;
>
> @@ -329,9 +327,6 @@ struct komeda_kms_dev *komeda_kms_attach(struct komeda_dev *mdev)
> drm_mode_config_cleanup(drm);
> komeda_kms_cleanup_private_objs(kms);
> drm->dev_private = NULL;
> - drm_dev_put(drm);
> -free_kms:
> - kfree(kms);
> return ERR_PTR(err);
> }
>
> @@ -348,5 +343,4 @@ void komeda_kms_detach(struct komeda_kms_dev *kms)
> drm_mode_config_cleanup(drm);
> komeda_kms_cleanup_private_objs(kms);
> drm->dev_private = NULL;
> - drm_dev_put(drm);
> }
> --
> 2.25.1
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 36/44] drm/komeda: use devm_drm_dev_alloc
2020-04-08 8:40 ` [Intel-gfx] " james qian wang (Arm Technology China)
@ 2020-04-08 9:03 ` Daniel Vetter
-1 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-08 9:03 UTC (permalink / raw)
To: james qian wang (Arm Technology China)
Cc: Mihail Atanassov, Intel Graphics Development, Liviu Dudau,
DRI Development, Daniel Vetter, nd
On Wed, Apr 8, 2020 at 10:41 AM james qian wang (Arm Technology China)
<james.qian.wang@arm.com> wrote:
>
> On Fri, Apr 03, 2020 at 09:58:20PM +0800, Daniel Vetter wrote:
> > Komeda uses the component framework, which does open/close a new
> > devres group around all the bind callbacks. Which means we can use
> > devm_ functions for managing the drm_device cleanup, with leaking
> > stuff in case of deferred probes or other reasons to unbind
> > components, or the component_master.
> >
> > Also note that this fixes a double-free in the probe unroll code, bot
> > drm_dev_put and kfree(kms) result in the kms allocation getting freed.
> >
> > Aside: komeda_bind could be cleaned up a lot, devm_kfree is a bit
> > redundant. Plus I'm not clear on why there's suballocations for
> > mdrv->mdev and mdrv->kms. Plus I'm not sure the lifetimes are correct
> > with all that devm_kzalloc usage ... That structure layout is also the
> > reason why komeda still uses drm_device->dev_private and can't easily
> > be replaced with a proper container_of upcasting. I'm pretty sure that
> > there's endless amounts of hotunplug/hotremove bugs in there with all
> > the unprotected dereferencing of drm_device->dev_private.
>
> Hi Daniel:
>
> Thank you for the patch.
>
> Reviewed-by: James Qian Wang <james.qian.wang@arm.com>
>
> For why komeda has two devices komeda_dev and komeda_kms_dev.
> That because komeda treats drm_crtc/plane as virtual, which pick the real
> komeda resources to satify the user's requirement. In the initial driver
> design we want to clear the difference of these two class structures
> so we defined two devices:
>
> - komeda_dev:
> managing the real komeda device and resources.
>
> - komeda_kms_dev
> the virtual device managing the drm related stuff like
> komeda_crtc/plane.
>
> And yes, even for that we don't need two sub-allocations, we are planing
> to move the komeda_dev into the komeda_kms_dev or just merge two devices
> together.
Yeah I think the logical split makes a lot of sense, e.g. amdgpu has a
similar split between the drm front-end structures, and the DC
back-end stuff that deals with the hardware. Same as other drivers.
The issue I think I'm seeing with komeda is all the pointer chasing
(not a problem, just a bit of indirection that's not strictly needed),
and that when you unload the back-end disappears right away, while the
front-end might still be used by userspace. And then all the pointers
you have lead to oopses.
I admit that for built-in hw hotunplug isn't really a major use-case.
But we do have some usb drivers nowadays in drm, so I'm trying to
clean this all up a bit and make sure that as many drivers as possible
have clean&correct code in this area.
Anyway if you're already planning to look into this then awesome!
Cheers, Daniel
> Thanks
> James
>
> > Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> > Cc: "James (Qian) Wang" <james.qian.wang@arm.com>
> > Cc: Liviu Dudau <liviu.dudau@arm.com>
> > Cc: Mihail Atanassov <mihail.atanassov@arm.com>
> > ---
> > drivers/gpu/drm/arm/display/komeda/komeda_kms.c | 16 +++++-----------
> > 1 file changed, 5 insertions(+), 11 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_kms.c b/drivers/gpu/drm/arm/display/komeda/komeda_kms.c
> > index 16dfd5cdb66c..6b85d5f4caa8 100644
> > --- a/drivers/gpu/drm/arm/display/komeda/komeda_kms.c
> > +++ b/drivers/gpu/drm/arm/display/komeda/komeda_kms.c
> > @@ -261,18 +261,16 @@ static void komeda_kms_mode_config_init(struct komeda_kms_dev *kms,
> >
> > struct komeda_kms_dev *komeda_kms_attach(struct komeda_dev *mdev)
> > {
> > - struct komeda_kms_dev *kms = kzalloc(sizeof(*kms), GFP_KERNEL);
> > + struct komeda_kms_dev *kms;
> > struct drm_device *drm;
> > int err;
> >
> > - if (!kms)
> > - return ERR_PTR(-ENOMEM);
> > + kms = devm_drm_dev_alloc(mdev->dev, &komeda_kms_driver,
> > + struct komeda_kms_dev, base);
> > + if (IS_ERR(kms))
> > + return kms;
> >
> > drm = &kms->base;
> > - err = drm_dev_init(drm, &komeda_kms_driver, mdev->dev);
> > - if (err)
> > - goto free_kms;
> > - drmm_add_final_kfree(drm, kms);
> >
> > drm->dev_private = mdev;
> >
> > @@ -329,9 +327,6 @@ struct komeda_kms_dev *komeda_kms_attach(struct komeda_dev *mdev)
> > drm_mode_config_cleanup(drm);
> > komeda_kms_cleanup_private_objs(kms);
> > drm->dev_private = NULL;
> > - drm_dev_put(drm);
> > -free_kms:
> > - kfree(kms);
> > return ERR_PTR(err);
> > }
> >
> > @@ -348,5 +343,4 @@ void komeda_kms_detach(struct komeda_kms_dev *kms)
> > drm_mode_config_cleanup(drm);
> > komeda_kms_cleanup_private_objs(kms);
> > drm->dev_private = NULL;
> > - drm_dev_put(drm);
> > }
> > --
> > 2.25.1
--
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [Intel-gfx] [PATCH 36/44] drm/komeda: use devm_drm_dev_alloc
@ 2020-04-08 9:03 ` Daniel Vetter
0 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-08 9:03 UTC (permalink / raw)
To: james qian wang (Arm Technology China)
Cc: Mihail Atanassov, Intel Graphics Development, DRI Development,
Daniel Vetter, nd
On Wed, Apr 8, 2020 at 10:41 AM james qian wang (Arm Technology China)
<james.qian.wang@arm.com> wrote:
>
> On Fri, Apr 03, 2020 at 09:58:20PM +0800, Daniel Vetter wrote:
> > Komeda uses the component framework, which does open/close a new
> > devres group around all the bind callbacks. Which means we can use
> > devm_ functions for managing the drm_device cleanup, with leaking
> > stuff in case of deferred probes or other reasons to unbind
> > components, or the component_master.
> >
> > Also note that this fixes a double-free in the probe unroll code, bot
> > drm_dev_put and kfree(kms) result in the kms allocation getting freed.
> >
> > Aside: komeda_bind could be cleaned up a lot, devm_kfree is a bit
> > redundant. Plus I'm not clear on why there's suballocations for
> > mdrv->mdev and mdrv->kms. Plus I'm not sure the lifetimes are correct
> > with all that devm_kzalloc usage ... That structure layout is also the
> > reason why komeda still uses drm_device->dev_private and can't easily
> > be replaced with a proper container_of upcasting. I'm pretty sure that
> > there's endless amounts of hotunplug/hotremove bugs in there with all
> > the unprotected dereferencing of drm_device->dev_private.
>
> Hi Daniel:
>
> Thank you for the patch.
>
> Reviewed-by: James Qian Wang <james.qian.wang@arm.com>
>
> For why komeda has two devices komeda_dev and komeda_kms_dev.
> That because komeda treats drm_crtc/plane as virtual, which pick the real
> komeda resources to satify the user's requirement. In the initial driver
> design we want to clear the difference of these two class structures
> so we defined two devices:
>
> - komeda_dev:
> managing the real komeda device and resources.
>
> - komeda_kms_dev
> the virtual device managing the drm related stuff like
> komeda_crtc/plane.
>
> And yes, even for that we don't need two sub-allocations, we are planing
> to move the komeda_dev into the komeda_kms_dev or just merge two devices
> together.
Yeah I think the logical split makes a lot of sense, e.g. amdgpu has a
similar split between the drm front-end structures, and the DC
back-end stuff that deals with the hardware. Same as other drivers.
The issue I think I'm seeing with komeda is all the pointer chasing
(not a problem, just a bit of indirection that's not strictly needed),
and that when you unload the back-end disappears right away, while the
front-end might still be used by userspace. And then all the pointers
you have lead to oopses.
I admit that for built-in hw hotunplug isn't really a major use-case.
But we do have some usb drivers nowadays in drm, so I'm trying to
clean this all up a bit and make sure that as many drivers as possible
have clean&correct code in this area.
Anyway if you're already planning to look into this then awesome!
Cheers, Daniel
> Thanks
> James
>
> > Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> > Cc: "James (Qian) Wang" <james.qian.wang@arm.com>
> > Cc: Liviu Dudau <liviu.dudau@arm.com>
> > Cc: Mihail Atanassov <mihail.atanassov@arm.com>
> > ---
> > drivers/gpu/drm/arm/display/komeda/komeda_kms.c | 16 +++++-----------
> > 1 file changed, 5 insertions(+), 11 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_kms.c b/drivers/gpu/drm/arm/display/komeda/komeda_kms.c
> > index 16dfd5cdb66c..6b85d5f4caa8 100644
> > --- a/drivers/gpu/drm/arm/display/komeda/komeda_kms.c
> > +++ b/drivers/gpu/drm/arm/display/komeda/komeda_kms.c
> > @@ -261,18 +261,16 @@ static void komeda_kms_mode_config_init(struct komeda_kms_dev *kms,
> >
> > struct komeda_kms_dev *komeda_kms_attach(struct komeda_dev *mdev)
> > {
> > - struct komeda_kms_dev *kms = kzalloc(sizeof(*kms), GFP_KERNEL);
> > + struct komeda_kms_dev *kms;
> > struct drm_device *drm;
> > int err;
> >
> > - if (!kms)
> > - return ERR_PTR(-ENOMEM);
> > + kms = devm_drm_dev_alloc(mdev->dev, &komeda_kms_driver,
> > + struct komeda_kms_dev, base);
> > + if (IS_ERR(kms))
> > + return kms;
> >
> > drm = &kms->base;
> > - err = drm_dev_init(drm, &komeda_kms_driver, mdev->dev);
> > - if (err)
> > - goto free_kms;
> > - drmm_add_final_kfree(drm, kms);
> >
> > drm->dev_private = mdev;
> >
> > @@ -329,9 +327,6 @@ struct komeda_kms_dev *komeda_kms_attach(struct komeda_dev *mdev)
> > drm_mode_config_cleanup(drm);
> > komeda_kms_cleanup_private_objs(kms);
> > drm->dev_private = NULL;
> > - drm_dev_put(drm);
> > -free_kms:
> > - kfree(kms);
> > return ERR_PTR(err);
> > }
> >
> > @@ -348,5 +343,4 @@ void komeda_kms_detach(struct komeda_kms_dev *kms)
> > drm_mode_config_cleanup(drm);
> > komeda_kms_cleanup_private_objs(kms);
> > drm->dev_private = NULL;
> > - drm_dev_put(drm);
> > }
> > --
> > 2.25.1
--
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 02/44] drm: Add devm_drm_dev_alloc macro
2020-04-08 6:57 ` [Intel-gfx] " Sam Ravnborg
@ 2020-04-08 12:11 ` Daniel Vetter
-1 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-08 12:11 UTC (permalink / raw)
To: Sam Ravnborg
Cc: Daniel Vetter, Intel Graphics Development, DRI Development,
Paul Kocialkowski, Laurent Pinchart, Daniel Vetter
On Wed, Apr 08, 2020 at 08:57:14AM +0200, Sam Ravnborg wrote:
> Hi Daniel.
>
> Finally managed to dive into this..
>
> Maybe I need more coffee, it is still morning here.
> But alas this patch triggered a few comments.
>
> Sam
>
> On Fri, Apr 03, 2020 at 03:57:46PM +0200, Daniel Vetter wrote:
> > The kerneldoc is only added for this new function. Existing kerneldoc
> > and examples will be udated at the very end, since once all drivers
> > are converted over to devm_drm_dev_alloc we can unexport a lot of
> > interim functions and make the documentation for driver authors a lot
> > cleaner and less confusing. There will be only one true way to
> > initialize a drm_device at the end of this, which is going to be
> > devm_drm_dev_alloc.
>
> This changelog entry does a poor job describing what the purpose of this
> change is.
> Try to read it outside context.
Something like:
Add a new macro helper to combine the usual init sequence in drivers,
consisting of a kzalloc + devm_drm_dev_init + drmm_add_final_kfree
triplet. This allows us to remove the rather unsightly
drmm_add_final_kfree from all currently merged drivers.
This good enough, as an intro paragraph?
>
>
> >
> > Cc: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
> > Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
> > Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> > ---
> > drivers/gpu/drm/drm_drv.c | 23 +++++++++++++++++++++++
> > include/drm/drm_drv.h | 33 +++++++++++++++++++++++++++++++++
> > 2 files changed, 56 insertions(+)
> >
> > diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c
> > index 1bb4f636b83c..9e60b784b3ac 100644
> > --- a/drivers/gpu/drm/drm_drv.c
> > +++ b/drivers/gpu/drm/drm_drv.c
> > @@ -739,6 +739,29 @@ int devm_drm_dev_init(struct device *parent,
> > }
> > EXPORT_SYMBOL(devm_drm_dev_init);
> >
> > +void* __devm_drm_dev_alloc(struct device *parent, struct drm_driver *driver,
> > + size_t size, size_t offset)
> > +{
> > + void *container;
> > + struct drm_device *drm;
> > + int ret;
> > +
> > + container = kzalloc(size, GFP_KERNEL);
> > + if (!container)
> > + return ERR_PTR(-ENOMEM);
> > +
> > + drm = container + offset;
> > + ret = devm_drm_dev_init(parent, drm, driver);
> > + if (ret) {
> > + kfree(container);
> > + return ERR_PTR(ret);
> > + }
> > + drmm_add_final_kfree(drm, container);
> > +
> > + return container;
> > +}
> > +EXPORT_SYMBOL(__devm_drm_dev_alloc);
> > +
> > /**
> > * drm_dev_alloc - Allocate new DRM device
> > * @driver: DRM driver to allocate device for
> > diff --git a/include/drm/drm_drv.h b/include/drm/drm_drv.h
> > index e7c6ea261ed1..26776be5a21e 100644
> > --- a/include/drm/drm_drv.h
> > +++ b/include/drm/drm_drv.h
> > @@ -626,6 +626,39 @@ int devm_drm_dev_init(struct device *parent,
> > struct drm_device *dev,
> > struct drm_driver *driver);
> >
> > +void* __devm_drm_dev_alloc(struct device *parent, struct drm_driver *driver,
> > + size_t size, size_t offset);
> > +
> > +/**
> > + * devm_drm_dev_alloc - Resource managed allocation of a &drm_device instance
> > + * @parent: Parent device object
> > + * @driver: DRM driver
> > + * @type: the type of the struct which contains struct &drm_device
> > + * @member: the name of the &drm_device within @type.
> I am confused about the naming here.
> devm_ implies we allocate something with a lifetime equal that of a
> driver. So when the driver are gone what we allocate is also gone.
> Like everythign else devm_ prefixed.
>
> But the lifetime of a drm_device is until the last userspace reference
> is gone (final drm_dev_put() is called).
The kerneldoc for this is largely copied from the existing
devm_drm_dev_init. And yes the lifetime is bound to the device, we do the
drm_dev_put() when that disappears. Now other users of drm_device might
still hold references and delay cleanup, but "cleanup is done as a devres
action" is very much what devm_ signifies.
"
> > + *
> > + * This allocates and initialize a new DRM device. No device registration is done.
> > + * Call drm_dev_register() to advertice the device to user space and register it
> > + * with other core subsystems. This should be done last in the device
> s/This/Calling drm_dev_register()/ will make this sentence a bit more
> explicit.
>
> > + * initialization sequence to make sure userspace can't access an inconsistent
> > + * state.
> > + *
> > + * The initial ref-count of the object is 1. Use drm_dev_get() and
> > + * drm_dev_put() to take and drop further ref-counts.
> > + *
> > + * It is recommended that drivers embed &struct drm_device into their own device
> > + * structure.
> > + *
> > + * Note that this manages the lifetime of the resulting &drm_device
> > + * automatically using devres.
> Hmm, no this is managed by drmres???
Yup, the next sentence explains how. And note that we're already using
this in the form of devm_drm_dev_init. So not clear what's unclear here
...
Thanks for your comments.
-Daniel
>
>
> > + * The DRM device initialized with this function is
> > + * automatically put on driver detach using drm_dev_put().
> > + *
> > + * RETURNS:
> > + * Pointer to new DRM device, or ERR_PTR on failure.
> > + */
> > +#define devm_drm_dev_alloc(parent, driver, type, member) \
> > + ((type *) __devm_drm_dev_alloc(parent, driver, sizeof(type), \
> > + offsetof(type, member)))
> > +
> > struct drm_device *drm_dev_alloc(struct drm_driver *driver,
> > struct device *parent);
> > int drm_dev_register(struct drm_device *dev, unsigned long flags);
> > --
> > 2.25.1
> >
> > _______________________________________________
> > dri-devel mailing list
> > dri-devel@lists.freedesktop.org
> > https://lists.freedesktop.org/mailman/listinfo/dri-devel
--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [Intel-gfx] [PATCH 02/44] drm: Add devm_drm_dev_alloc macro
@ 2020-04-08 12:11 ` Daniel Vetter
0 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-08 12:11 UTC (permalink / raw)
To: Sam Ravnborg
Cc: Daniel Vetter, Intel Graphics Development, DRI Development,
Paul Kocialkowski, Laurent Pinchart, Daniel Vetter
On Wed, Apr 08, 2020 at 08:57:14AM +0200, Sam Ravnborg wrote:
> Hi Daniel.
>
> Finally managed to dive into this..
>
> Maybe I need more coffee, it is still morning here.
> But alas this patch triggered a few comments.
>
> Sam
>
> On Fri, Apr 03, 2020 at 03:57:46PM +0200, Daniel Vetter wrote:
> > The kerneldoc is only added for this new function. Existing kerneldoc
> > and examples will be udated at the very end, since once all drivers
> > are converted over to devm_drm_dev_alloc we can unexport a lot of
> > interim functions and make the documentation for driver authors a lot
> > cleaner and less confusing. There will be only one true way to
> > initialize a drm_device at the end of this, which is going to be
> > devm_drm_dev_alloc.
>
> This changelog entry does a poor job describing what the purpose of this
> change is.
> Try to read it outside context.
Something like:
Add a new macro helper to combine the usual init sequence in drivers,
consisting of a kzalloc + devm_drm_dev_init + drmm_add_final_kfree
triplet. This allows us to remove the rather unsightly
drmm_add_final_kfree from all currently merged drivers.
This good enough, as an intro paragraph?
>
>
> >
> > Cc: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
> > Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
> > Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> > ---
> > drivers/gpu/drm/drm_drv.c | 23 +++++++++++++++++++++++
> > include/drm/drm_drv.h | 33 +++++++++++++++++++++++++++++++++
> > 2 files changed, 56 insertions(+)
> >
> > diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c
> > index 1bb4f636b83c..9e60b784b3ac 100644
> > --- a/drivers/gpu/drm/drm_drv.c
> > +++ b/drivers/gpu/drm/drm_drv.c
> > @@ -739,6 +739,29 @@ int devm_drm_dev_init(struct device *parent,
> > }
> > EXPORT_SYMBOL(devm_drm_dev_init);
> >
> > +void* __devm_drm_dev_alloc(struct device *parent, struct drm_driver *driver,
> > + size_t size, size_t offset)
> > +{
> > + void *container;
> > + struct drm_device *drm;
> > + int ret;
> > +
> > + container = kzalloc(size, GFP_KERNEL);
> > + if (!container)
> > + return ERR_PTR(-ENOMEM);
> > +
> > + drm = container + offset;
> > + ret = devm_drm_dev_init(parent, drm, driver);
> > + if (ret) {
> > + kfree(container);
> > + return ERR_PTR(ret);
> > + }
> > + drmm_add_final_kfree(drm, container);
> > +
> > + return container;
> > +}
> > +EXPORT_SYMBOL(__devm_drm_dev_alloc);
> > +
> > /**
> > * drm_dev_alloc - Allocate new DRM device
> > * @driver: DRM driver to allocate device for
> > diff --git a/include/drm/drm_drv.h b/include/drm/drm_drv.h
> > index e7c6ea261ed1..26776be5a21e 100644
> > --- a/include/drm/drm_drv.h
> > +++ b/include/drm/drm_drv.h
> > @@ -626,6 +626,39 @@ int devm_drm_dev_init(struct device *parent,
> > struct drm_device *dev,
> > struct drm_driver *driver);
> >
> > +void* __devm_drm_dev_alloc(struct device *parent, struct drm_driver *driver,
> > + size_t size, size_t offset);
> > +
> > +/**
> > + * devm_drm_dev_alloc - Resource managed allocation of a &drm_device instance
> > + * @parent: Parent device object
> > + * @driver: DRM driver
> > + * @type: the type of the struct which contains struct &drm_device
> > + * @member: the name of the &drm_device within @type.
> I am confused about the naming here.
> devm_ implies we allocate something with a lifetime equal that of a
> driver. So when the driver are gone what we allocate is also gone.
> Like everythign else devm_ prefixed.
>
> But the lifetime of a drm_device is until the last userspace reference
> is gone (final drm_dev_put() is called).
The kerneldoc for this is largely copied from the existing
devm_drm_dev_init. And yes the lifetime is bound to the device, we do the
drm_dev_put() when that disappears. Now other users of drm_device might
still hold references and delay cleanup, but "cleanup is done as a devres
action" is very much what devm_ signifies.
"
> > + *
> > + * This allocates and initialize a new DRM device. No device registration is done.
> > + * Call drm_dev_register() to advertice the device to user space and register it
> > + * with other core subsystems. This should be done last in the device
> s/This/Calling drm_dev_register()/ will make this sentence a bit more
> explicit.
>
> > + * initialization sequence to make sure userspace can't access an inconsistent
> > + * state.
> > + *
> > + * The initial ref-count of the object is 1. Use drm_dev_get() and
> > + * drm_dev_put() to take and drop further ref-counts.
> > + *
> > + * It is recommended that drivers embed &struct drm_device into their own device
> > + * structure.
> > + *
> > + * Note that this manages the lifetime of the resulting &drm_device
> > + * automatically using devres.
> Hmm, no this is managed by drmres???
Yup, the next sentence explains how. And note that we're already using
this in the form of devm_drm_dev_init. So not clear what's unclear here
...
Thanks for your comments.
-Daniel
>
>
> > + * The DRM device initialized with this function is
> > + * automatically put on driver detach using drm_dev_put().
> > + *
> > + * RETURNS:
> > + * Pointer to new DRM device, or ERR_PTR on failure.
> > + */
> > +#define devm_drm_dev_alloc(parent, driver, type, member) \
> > + ((type *) __devm_drm_dev_alloc(parent, driver, sizeof(type), \
> > + offsetof(type, member)))
> > +
> > struct drm_device *drm_dev_alloc(struct drm_driver *driver,
> > struct device *parent);
> > int drm_dev_register(struct drm_device *dev, unsigned long flags);
> > --
> > 2.25.1
> >
> > _______________________________________________
> > dri-devel mailing list
> > dri-devel@lists.freedesktop.org
> > https://lists.freedesktop.org/mailman/listinfo/dri-devel
--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 14/44] drm/v3d: Delete v3d_dev->pdev
2020-04-08 7:27 ` [Intel-gfx] " Sam Ravnborg
@ 2020-04-08 12:13 ` Daniel Vetter
-1 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-08 12:13 UTC (permalink / raw)
To: Sam Ravnborg
Cc: Daniel Vetter, Intel Graphics Development, DRI Development,
Daniel Vetter
On Wed, Apr 08, 2020 at 09:27:01AM +0200, Sam Ravnborg wrote:
> Hi Daniel.
>
> On Fri, Apr 03, 2020 at 03:57:58PM +0200, Daniel Vetter wrote:
> > We already have it in v3d_dev->drm.dev with zero additional pointer
> > chasing. Personally I don't like duplicated pointers like this
> > because:
> > - reviewers need to check whether the pointer is for the same or
> > different objects if there's multiple
> > - compilers have an easier time too
> >
> > To avoid having to pull in some big headers I implemented the casting
> > function as a macro instead of a static inline.
> Hmm...
>
> > Typechecking thanks to
> > container_of still assured.
> >
> > But also a bit a bikeshed, so feel free to ignore.
> >
> > Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> > Cc: Eric Anholt <eric@anholt.net>
>
> This and patch 13 has same subject - confusing.
dev != pdev
But yeah I agree it's a nice trick I'm pulling here :-)
Cheers, Daniel
>
> Sam
>
> > ---
> > drivers/gpu/drm/v3d/v3d_drv.c | 3 +--
> > drivers/gpu/drm/v3d/v3d_drv.h | 3 ++-
> > drivers/gpu/drm/v3d/v3d_irq.c | 8 +++++---
> > 3 files changed, 8 insertions(+), 6 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/v3d/v3d_drv.c b/drivers/gpu/drm/v3d/v3d_drv.c
> > index 37cb880f2826..82a7dfdd14c2 100644
> > --- a/drivers/gpu/drm/v3d/v3d_drv.c
> > +++ b/drivers/gpu/drm/v3d/v3d_drv.c
> > @@ -235,7 +235,7 @@ static int
> > map_regs(struct v3d_dev *v3d, void __iomem **regs, const char *name)
> > {
> > struct resource *res =
> > - platform_get_resource_byname(v3d->pdev, IORESOURCE_MEM, name);
> > + platform_get_resource_byname(v3d_to_pdev(v3d), IORESOURCE_MEM, name);
> >
> > *regs = devm_ioremap_resource(v3d->drm.dev, res);
> > return PTR_ERR_OR_ZERO(*regs);
> > @@ -255,7 +255,6 @@ static int v3d_platform_drm_probe(struct platform_device *pdev)
> > if (IS_ERR(v3d))
> > return PTR_ERR(v3d);
> >
> > - v3d->pdev = pdev;
> > drm = &v3d->drm;
> >
> > platform_set_drvdata(pdev, drm);
> > diff --git a/drivers/gpu/drm/v3d/v3d_drv.h b/drivers/gpu/drm/v3d/v3d_drv.h
> > index 4d2d1f2fe1af..935f23b524b2 100644
> > --- a/drivers/gpu/drm/v3d/v3d_drv.h
> > +++ b/drivers/gpu/drm/v3d/v3d_drv.h
> > @@ -46,7 +46,6 @@ struct v3d_dev {
> > int ver;
> > bool single_irq_line;
> >
> > - struct platform_device *pdev;
> > void __iomem *hub_regs;
> > void __iomem *core_regs[3];
> > void __iomem *bridge_regs;
> > @@ -128,6 +127,8 @@ v3d_has_csd(struct v3d_dev *v3d)
> > return v3d->ver >= 41;
> > }
> >
> > +#define v3d_to_pdev(v3d) to_platform_device(v3d->drm.dev)
> > +
> > /* The per-fd struct, which tracks the MMU mappings. */
> > struct v3d_file_priv {
> > struct v3d_dev *v3d;
> > diff --git a/drivers/gpu/drm/v3d/v3d_irq.c b/drivers/gpu/drm/v3d/v3d_irq.c
> > index f4ce6d057c90..51b65263c657 100644
> > --- a/drivers/gpu/drm/v3d/v3d_irq.c
> > +++ b/drivers/gpu/drm/v3d/v3d_irq.c
> > @@ -217,7 +217,7 @@ v3d_irq_init(struct v3d_dev *v3d)
> > V3D_CORE_WRITE(core, V3D_CTL_INT_CLR, V3D_CORE_IRQS);
> > V3D_WRITE(V3D_HUB_INT_CLR, V3D_HUB_IRQS);
> >
> > - irq1 = platform_get_irq(v3d->pdev, 1);
> > + irq1 = platform_get_irq(v3d_to_pdev(v3d), 1);
> > if (irq1 == -EPROBE_DEFER)
> > return irq1;
> > if (irq1 > 0) {
> > @@ -226,7 +226,8 @@ v3d_irq_init(struct v3d_dev *v3d)
> > "v3d_core0", v3d);
> > if (ret)
> > goto fail;
> > - ret = devm_request_irq(v3d->drm.dev, platform_get_irq(v3d->pdev, 0),
> > + ret = devm_request_irq(v3d->drm.dev,
> > + platform_get_irq(v3d_to_pdev(v3d), 0),
> > v3d_hub_irq, IRQF_SHARED,
> > "v3d_hub", v3d);
> > if (ret)
> > @@ -234,7 +235,8 @@ v3d_irq_init(struct v3d_dev *v3d)
> > } else {
> > v3d->single_irq_line = true;
> >
> > - ret = devm_request_irq(v3d->drm.dev, platform_get_irq(v3d->pdev, 0),
> > + ret = devm_request_irq(v3d->drm.dev,
> > + platform_get_irq(v3d_to_pdev(v3d), 0),
> > v3d_irq, IRQF_SHARED,
> > "v3d", v3d);
> > if (ret)
> > --
> > 2.25.1
> >
> > _______________________________________________
> > dri-devel mailing list
> > dri-devel@lists.freedesktop.org
> > https://lists.freedesktop.org/mailman/listinfo/dri-devel
--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [Intel-gfx] [PATCH 14/44] drm/v3d: Delete v3d_dev->pdev
@ 2020-04-08 12:13 ` Daniel Vetter
0 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-08 12:13 UTC (permalink / raw)
To: Sam Ravnborg
Cc: Daniel Vetter, Intel Graphics Development, DRI Development,
Daniel Vetter
On Wed, Apr 08, 2020 at 09:27:01AM +0200, Sam Ravnborg wrote:
> Hi Daniel.
>
> On Fri, Apr 03, 2020 at 03:57:58PM +0200, Daniel Vetter wrote:
> > We already have it in v3d_dev->drm.dev with zero additional pointer
> > chasing. Personally I don't like duplicated pointers like this
> > because:
> > - reviewers need to check whether the pointer is for the same or
> > different objects if there's multiple
> > - compilers have an easier time too
> >
> > To avoid having to pull in some big headers I implemented the casting
> > function as a macro instead of a static inline.
> Hmm...
>
> > Typechecking thanks to
> > container_of still assured.
> >
> > But also a bit a bikeshed, so feel free to ignore.
> >
> > Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> > Cc: Eric Anholt <eric@anholt.net>
>
> This and patch 13 has same subject - confusing.
dev != pdev
But yeah I agree it's a nice trick I'm pulling here :-)
Cheers, Daniel
>
> Sam
>
> > ---
> > drivers/gpu/drm/v3d/v3d_drv.c | 3 +--
> > drivers/gpu/drm/v3d/v3d_drv.h | 3 ++-
> > drivers/gpu/drm/v3d/v3d_irq.c | 8 +++++---
> > 3 files changed, 8 insertions(+), 6 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/v3d/v3d_drv.c b/drivers/gpu/drm/v3d/v3d_drv.c
> > index 37cb880f2826..82a7dfdd14c2 100644
> > --- a/drivers/gpu/drm/v3d/v3d_drv.c
> > +++ b/drivers/gpu/drm/v3d/v3d_drv.c
> > @@ -235,7 +235,7 @@ static int
> > map_regs(struct v3d_dev *v3d, void __iomem **regs, const char *name)
> > {
> > struct resource *res =
> > - platform_get_resource_byname(v3d->pdev, IORESOURCE_MEM, name);
> > + platform_get_resource_byname(v3d_to_pdev(v3d), IORESOURCE_MEM, name);
> >
> > *regs = devm_ioremap_resource(v3d->drm.dev, res);
> > return PTR_ERR_OR_ZERO(*regs);
> > @@ -255,7 +255,6 @@ static int v3d_platform_drm_probe(struct platform_device *pdev)
> > if (IS_ERR(v3d))
> > return PTR_ERR(v3d);
> >
> > - v3d->pdev = pdev;
> > drm = &v3d->drm;
> >
> > platform_set_drvdata(pdev, drm);
> > diff --git a/drivers/gpu/drm/v3d/v3d_drv.h b/drivers/gpu/drm/v3d/v3d_drv.h
> > index 4d2d1f2fe1af..935f23b524b2 100644
> > --- a/drivers/gpu/drm/v3d/v3d_drv.h
> > +++ b/drivers/gpu/drm/v3d/v3d_drv.h
> > @@ -46,7 +46,6 @@ struct v3d_dev {
> > int ver;
> > bool single_irq_line;
> >
> > - struct platform_device *pdev;
> > void __iomem *hub_regs;
> > void __iomem *core_regs[3];
> > void __iomem *bridge_regs;
> > @@ -128,6 +127,8 @@ v3d_has_csd(struct v3d_dev *v3d)
> > return v3d->ver >= 41;
> > }
> >
> > +#define v3d_to_pdev(v3d) to_platform_device(v3d->drm.dev)
> > +
> > /* The per-fd struct, which tracks the MMU mappings. */
> > struct v3d_file_priv {
> > struct v3d_dev *v3d;
> > diff --git a/drivers/gpu/drm/v3d/v3d_irq.c b/drivers/gpu/drm/v3d/v3d_irq.c
> > index f4ce6d057c90..51b65263c657 100644
> > --- a/drivers/gpu/drm/v3d/v3d_irq.c
> > +++ b/drivers/gpu/drm/v3d/v3d_irq.c
> > @@ -217,7 +217,7 @@ v3d_irq_init(struct v3d_dev *v3d)
> > V3D_CORE_WRITE(core, V3D_CTL_INT_CLR, V3D_CORE_IRQS);
> > V3D_WRITE(V3D_HUB_INT_CLR, V3D_HUB_IRQS);
> >
> > - irq1 = platform_get_irq(v3d->pdev, 1);
> > + irq1 = platform_get_irq(v3d_to_pdev(v3d), 1);
> > if (irq1 == -EPROBE_DEFER)
> > return irq1;
> > if (irq1 > 0) {
> > @@ -226,7 +226,8 @@ v3d_irq_init(struct v3d_dev *v3d)
> > "v3d_core0", v3d);
> > if (ret)
> > goto fail;
> > - ret = devm_request_irq(v3d->drm.dev, platform_get_irq(v3d->pdev, 0),
> > + ret = devm_request_irq(v3d->drm.dev,
> > + platform_get_irq(v3d_to_pdev(v3d), 0),
> > v3d_hub_irq, IRQF_SHARED,
> > "v3d_hub", v3d);
> > if (ret)
> > @@ -234,7 +235,8 @@ v3d_irq_init(struct v3d_dev *v3d)
> > } else {
> > v3d->single_irq_line = true;
> >
> > - ret = devm_request_irq(v3d->drm.dev, platform_get_irq(v3d->pdev, 0),
> > + ret = devm_request_irq(v3d->drm.dev,
> > + platform_get_irq(v3d_to_pdev(v3d), 0),
> > v3d_irq, IRQF_SHARED,
> > "v3d", v3d);
> > if (ret)
> > --
> > 2.25.1
> >
> > _______________________________________________
> > dri-devel mailing list
> > dri-devel@lists.freedesktop.org
> > https://lists.freedesktop.org/mailman/listinfo/dri-devel
--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 00/44] devm_drm_dev_alloc, no more drmm_add_final_kfree
2020-04-08 8:08 ` [Intel-gfx] " Sam Ravnborg
@ 2020-04-08 12:15 ` Daniel Vetter
-1 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-08 12:15 UTC (permalink / raw)
To: Sam Ravnborg; +Cc: Daniel Vetter, Intel Graphics Development, DRI Development
On Wed, Apr 08, 2020 at 10:08:17AM +0200, Sam Ravnborg wrote:
> Hi Daniel.
>
> Made specific reply to several patches.
>
> This bunch:
> > drm/st7735r: Use devm_drm_dev_alloc
> > drm/st7586: Use devm_drm_dev_alloc
> > drm/repaper: Use devm_drm_dev_alloc
> > drm/mi0283qt: Use devm_drm_dev_alloc
> > drm/ili9486: Use devm_drm_dev_alloc
> > drm/ili9341: Use devm_drm_dev_alloc
> > drm/ili9225: Use devm_drm_dev_alloc
> > drm/hx8357d: Use devm_drm_dev_alloc
> > drm/gm12u320: Use devm_drm_dev_alloc
> > drm/gm12u320: Don't use drm_device->dev_private
>
> are all:
> Acked-by: Sam Ravnborg <sam@ravnborg.org>
>
> I will take a look at patch 44 later today.
> I steered away from the vgem, i915 stuff on purpose.
> I leave that to more competent persons.
Yeah I think next round I'll leave out the vkms, vgem and i915-selftest,
since that's a bigger discussion. But hopefully I can land the
devm_drm_dev_alloc and many of the more basic conversions in here soonish.
Thanks a lot for looking through this all.
-Daniel
--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [Intel-gfx] [PATCH 00/44] devm_drm_dev_alloc, no more drmm_add_final_kfree
@ 2020-04-08 12:15 ` Daniel Vetter
0 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-08 12:15 UTC (permalink / raw)
To: Sam Ravnborg; +Cc: Daniel Vetter, Intel Graphics Development, DRI Development
On Wed, Apr 08, 2020 at 10:08:17AM +0200, Sam Ravnborg wrote:
> Hi Daniel.
>
> Made specific reply to several patches.
>
> This bunch:
> > drm/st7735r: Use devm_drm_dev_alloc
> > drm/st7586: Use devm_drm_dev_alloc
> > drm/repaper: Use devm_drm_dev_alloc
> > drm/mi0283qt: Use devm_drm_dev_alloc
> > drm/ili9486: Use devm_drm_dev_alloc
> > drm/ili9341: Use devm_drm_dev_alloc
> > drm/ili9225: Use devm_drm_dev_alloc
> > drm/hx8357d: Use devm_drm_dev_alloc
> > drm/gm12u320: Use devm_drm_dev_alloc
> > drm/gm12u320: Don't use drm_device->dev_private
>
> are all:
> Acked-by: Sam Ravnborg <sam@ravnborg.org>
>
> I will take a look at patch 44 later today.
> I steered away from the vgem, i915 stuff on purpose.
> I leave that to more competent persons.
Yeah I think next round I'll leave out the vkms, vgem and i915-selftest,
since that's a bigger discussion. But hopefully I can land the
devm_drm_dev_alloc and many of the more basic conversions in here soonish.
Thanks a lot for looking through this all.
-Daniel
--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 02/44] drm: Add devm_drm_dev_alloc macro
2020-04-08 12:11 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-08 18:55 ` Sam Ravnborg
-1 siblings, 0 replies; 262+ messages in thread
From: Sam Ravnborg @ 2020-04-08 18:55 UTC (permalink / raw)
To: Daniel Vetter
Cc: Daniel Vetter, Intel Graphics Development, DRI Development,
Paul Kocialkowski, Laurent Pinchart, Daniel Vetter
Hi Daniel.
On Wed, Apr 08, 2020 at 02:11:47PM +0200, Daniel Vetter wrote:
> On Wed, Apr 08, 2020 at 08:57:14AM +0200, Sam Ravnborg wrote:
> > Hi Daniel.
> >
> > Finally managed to dive into this..
> >
> > Maybe I need more coffee, it is still morning here.
> > But alas this patch triggered a few comments.
> >
> > Sam
> >
> > On Fri, Apr 03, 2020 at 03:57:46PM +0200, Daniel Vetter wrote:
> > > The kerneldoc is only added for this new function. Existing kerneldoc
> > > and examples will be udated at the very end, since once all drivers
> > > are converted over to devm_drm_dev_alloc we can unexport a lot of
> > > interim functions and make the documentation for driver authors a lot
> > > cleaner and less confusing. There will be only one true way to
> > > initialize a drm_device at the end of this, which is going to be
> > > devm_drm_dev_alloc.
> >
> > This changelog entry does a poor job describing what the purpose of this
> > change is.
> > Try to read it outside context.
>
> Something like:
>
> Add a new macro helper to combine the usual init sequence in drivers,
> consisting of a kzalloc + devm_drm_dev_init + drmm_add_final_kfree
> triplet. This allows us to remove the rather unsightly
> drmm_add_final_kfree from all currently merged drivers.
Much better - thanks!
>
> This good enough, as an intro paragraph?
>
> >
> >
> > >
> > > Cc: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
> > > Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
> > > Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> > > ---
> > > drivers/gpu/drm/drm_drv.c | 23 +++++++++++++++++++++++
> > > include/drm/drm_drv.h | 33 +++++++++++++++++++++++++++++++++
> > > 2 files changed, 56 insertions(+)
> > >
> > > diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c
> > > index 1bb4f636b83c..9e60b784b3ac 100644
> > > --- a/drivers/gpu/drm/drm_drv.c
> > > +++ b/drivers/gpu/drm/drm_drv.c
> > > @@ -739,6 +739,29 @@ int devm_drm_dev_init(struct device *parent,
> > > }
> > > EXPORT_SYMBOL(devm_drm_dev_init);
> > >
> > > +void* __devm_drm_dev_alloc(struct device *parent, struct drm_driver *driver,
> > > + size_t size, size_t offset)
> > > +{
> > > + void *container;
> > > + struct drm_device *drm;
> > > + int ret;
> > > +
> > > + container = kzalloc(size, GFP_KERNEL);
> > > + if (!container)
> > > + return ERR_PTR(-ENOMEM);
> > > +
> > > + drm = container + offset;
> > > + ret = devm_drm_dev_init(parent, drm, driver);
> > > + if (ret) {
> > > + kfree(container);
> > > + return ERR_PTR(ret);
> > > + }
> > > + drmm_add_final_kfree(drm, container);
> > > +
> > > + return container;
> > > +}
> > > +EXPORT_SYMBOL(__devm_drm_dev_alloc);
> > > +
> > > /**
> > > * drm_dev_alloc - Allocate new DRM device
> > > * @driver: DRM driver to allocate device for
> > > diff --git a/include/drm/drm_drv.h b/include/drm/drm_drv.h
> > > index e7c6ea261ed1..26776be5a21e 100644
> > > --- a/include/drm/drm_drv.h
> > > +++ b/include/drm/drm_drv.h
> > > @@ -626,6 +626,39 @@ int devm_drm_dev_init(struct device *parent,
> > > struct drm_device *dev,
> > > struct drm_driver *driver);
> > >
> > > +void* __devm_drm_dev_alloc(struct device *parent, struct drm_driver *driver,
> > > + size_t size, size_t offset);
> > > +
> > > +/**
> > > + * devm_drm_dev_alloc - Resource managed allocation of a &drm_device instance
> > > + * @parent: Parent device object
> > > + * @driver: DRM driver
> > > + * @type: the type of the struct which contains struct &drm_device
> > > + * @member: the name of the &drm_device within @type.
> > I am confused about the naming here.
> > devm_ implies we allocate something with a lifetime equal that of a
> > driver. So when the driver are gone what we allocate is also gone.
> > Like everythign else devm_ prefixed.
> >
> > But the lifetime of a drm_device is until the last userspace reference
> > is gone (final drm_dev_put() is called).
>
> The kerneldoc for this is largely copied from the existing
> devm_drm_dev_init. And yes the lifetime is bound to the device, we do the
> drm_dev_put() when that disappears. Now other users of drm_device might
> still hold references and delay cleanup, but "cleanup is done as a devres
> action" is very much what devm_ signifies.
After discussing this on IRC I took one more look at the code.
We have something like this:
devm_drm_dev_alloc()
|
+-> devm_drm_dev_init()
| |
| +-> drm_dev_init()
| | |
| | +- kref_init(&dev->ref)
| | |
| | +- drmm_add_action(drm_dev_init_release)
| |
| +-> devm_add_action(devm_drm_dev_init_release)
|
+-> drmm_add_final_kfree()
drm_dev_init_release() - does all the release stuff
devm_drm_dev_init_release() do a simple drm_dev_put()
In other words we use the devres functionality to keep track of the
reference count for the structure allocated by devm_drm_dev_alloc()
So the naming makes some sense anyway.
When there are no users left of drm_dev_init() outside drm_drv.c this
can be simplified a little.
After re-reading the code it made sense again.
With the updated changelog:
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
PS. There is a few trivial checkpatch warnings to look at before pushing
out.
Sam
> "
> > > + *
> > > + * This allocates and initialize a new DRM device. No device registration is done.
> > > + * Call drm_dev_register() to advertice the device to user space and register it
> > > + * with other core subsystems. This should be done last in the device
> > s/This/Calling drm_dev_register()/ will make this sentence a bit more
> > explicit.
> >
> > > + * initialization sequence to make sure userspace can't access an inconsistent
> > > + * state.
> > > + *
> > > + * The initial ref-count of the object is 1. Use drm_dev_get() and
> > > + * drm_dev_put() to take and drop further ref-counts.
> > > + *
> > > + * It is recommended that drivers embed &struct drm_device into their own device
> > > + * structure.
> > > + *
> > > + * Note that this manages the lifetime of the resulting &drm_device
> > > + * automatically using devres.
> > Hmm, no this is managed by drmres???
>
> Yup, the next sentence explains how. And note that we're already using
> this in the form of devm_drm_dev_init. So not clear what's unclear here
> ...
>
> Thanks for your comments.
> -Daniel
>
>
> >
> >
> > > + * The DRM device initialized with this function is
> > > + * automatically put on driver detach using drm_dev_put().
> > > + *
> > > + * RETURNS:
> > > + * Pointer to new DRM device, or ERR_PTR on failure.
> > > + */
> > > +#define devm_drm_dev_alloc(parent, driver, type, member) \
> > > + ((type *) __devm_drm_dev_alloc(parent, driver, sizeof(type), \
> > > + offsetof(type, member)))
> > > +
> > > struct drm_device *drm_dev_alloc(struct drm_driver *driver,
> > > struct device *parent);
> > > int drm_dev_register(struct drm_device *dev, unsigned long flags);
> > > --
> > > 2.25.1
> > >
> > > _______________________________________________
> > > dri-devel mailing list
> > > dri-devel@lists.freedesktop.org
> > > https://lists.freedesktop.org/mailman/listinfo/dri-devel
>
> --
> Daniel Vetter
> Software Engineer, Intel Corporation
> http://blog.ffwll.ch
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [Intel-gfx] [PATCH 02/44] drm: Add devm_drm_dev_alloc macro
@ 2020-04-08 18:55 ` Sam Ravnborg
0 siblings, 0 replies; 262+ messages in thread
From: Sam Ravnborg @ 2020-04-08 18:55 UTC (permalink / raw)
To: Daniel Vetter
Cc: Daniel Vetter, Intel Graphics Development, DRI Development,
Paul Kocialkowski, Laurent Pinchart, Daniel Vetter
Hi Daniel.
On Wed, Apr 08, 2020 at 02:11:47PM +0200, Daniel Vetter wrote:
> On Wed, Apr 08, 2020 at 08:57:14AM +0200, Sam Ravnborg wrote:
> > Hi Daniel.
> >
> > Finally managed to dive into this..
> >
> > Maybe I need more coffee, it is still morning here.
> > But alas this patch triggered a few comments.
> >
> > Sam
> >
> > On Fri, Apr 03, 2020 at 03:57:46PM +0200, Daniel Vetter wrote:
> > > The kerneldoc is only added for this new function. Existing kerneldoc
> > > and examples will be udated at the very end, since once all drivers
> > > are converted over to devm_drm_dev_alloc we can unexport a lot of
> > > interim functions and make the documentation for driver authors a lot
> > > cleaner and less confusing. There will be only one true way to
> > > initialize a drm_device at the end of this, which is going to be
> > > devm_drm_dev_alloc.
> >
> > This changelog entry does a poor job describing what the purpose of this
> > change is.
> > Try to read it outside context.
>
> Something like:
>
> Add a new macro helper to combine the usual init sequence in drivers,
> consisting of a kzalloc + devm_drm_dev_init + drmm_add_final_kfree
> triplet. This allows us to remove the rather unsightly
> drmm_add_final_kfree from all currently merged drivers.
Much better - thanks!
>
> This good enough, as an intro paragraph?
>
> >
> >
> > >
> > > Cc: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
> > > Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
> > > Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> > > ---
> > > drivers/gpu/drm/drm_drv.c | 23 +++++++++++++++++++++++
> > > include/drm/drm_drv.h | 33 +++++++++++++++++++++++++++++++++
> > > 2 files changed, 56 insertions(+)
> > >
> > > diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c
> > > index 1bb4f636b83c..9e60b784b3ac 100644
> > > --- a/drivers/gpu/drm/drm_drv.c
> > > +++ b/drivers/gpu/drm/drm_drv.c
> > > @@ -739,6 +739,29 @@ int devm_drm_dev_init(struct device *parent,
> > > }
> > > EXPORT_SYMBOL(devm_drm_dev_init);
> > >
> > > +void* __devm_drm_dev_alloc(struct device *parent, struct drm_driver *driver,
> > > + size_t size, size_t offset)
> > > +{
> > > + void *container;
> > > + struct drm_device *drm;
> > > + int ret;
> > > +
> > > + container = kzalloc(size, GFP_KERNEL);
> > > + if (!container)
> > > + return ERR_PTR(-ENOMEM);
> > > +
> > > + drm = container + offset;
> > > + ret = devm_drm_dev_init(parent, drm, driver);
> > > + if (ret) {
> > > + kfree(container);
> > > + return ERR_PTR(ret);
> > > + }
> > > + drmm_add_final_kfree(drm, container);
> > > +
> > > + return container;
> > > +}
> > > +EXPORT_SYMBOL(__devm_drm_dev_alloc);
> > > +
> > > /**
> > > * drm_dev_alloc - Allocate new DRM device
> > > * @driver: DRM driver to allocate device for
> > > diff --git a/include/drm/drm_drv.h b/include/drm/drm_drv.h
> > > index e7c6ea261ed1..26776be5a21e 100644
> > > --- a/include/drm/drm_drv.h
> > > +++ b/include/drm/drm_drv.h
> > > @@ -626,6 +626,39 @@ int devm_drm_dev_init(struct device *parent,
> > > struct drm_device *dev,
> > > struct drm_driver *driver);
> > >
> > > +void* __devm_drm_dev_alloc(struct device *parent, struct drm_driver *driver,
> > > + size_t size, size_t offset);
> > > +
> > > +/**
> > > + * devm_drm_dev_alloc - Resource managed allocation of a &drm_device instance
> > > + * @parent: Parent device object
> > > + * @driver: DRM driver
> > > + * @type: the type of the struct which contains struct &drm_device
> > > + * @member: the name of the &drm_device within @type.
> > I am confused about the naming here.
> > devm_ implies we allocate something with a lifetime equal that of a
> > driver. So when the driver are gone what we allocate is also gone.
> > Like everythign else devm_ prefixed.
> >
> > But the lifetime of a drm_device is until the last userspace reference
> > is gone (final drm_dev_put() is called).
>
> The kerneldoc for this is largely copied from the existing
> devm_drm_dev_init. And yes the lifetime is bound to the device, we do the
> drm_dev_put() when that disappears. Now other users of drm_device might
> still hold references and delay cleanup, but "cleanup is done as a devres
> action" is very much what devm_ signifies.
After discussing this on IRC I took one more look at the code.
We have something like this:
devm_drm_dev_alloc()
|
+-> devm_drm_dev_init()
| |
| +-> drm_dev_init()
| | |
| | +- kref_init(&dev->ref)
| | |
| | +- drmm_add_action(drm_dev_init_release)
| |
| +-> devm_add_action(devm_drm_dev_init_release)
|
+-> drmm_add_final_kfree()
drm_dev_init_release() - does all the release stuff
devm_drm_dev_init_release() do a simple drm_dev_put()
In other words we use the devres functionality to keep track of the
reference count for the structure allocated by devm_drm_dev_alloc()
So the naming makes some sense anyway.
When there are no users left of drm_dev_init() outside drm_drv.c this
can be simplified a little.
After re-reading the code it made sense again.
With the updated changelog:
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
PS. There is a few trivial checkpatch warnings to look at before pushing
out.
Sam
> "
> > > + *
> > > + * This allocates and initialize a new DRM device. No device registration is done.
> > > + * Call drm_dev_register() to advertice the device to user space and register it
> > > + * with other core subsystems. This should be done last in the device
> > s/This/Calling drm_dev_register()/ will make this sentence a bit more
> > explicit.
> >
> > > + * initialization sequence to make sure userspace can't access an inconsistent
> > > + * state.
> > > + *
> > > + * The initial ref-count of the object is 1. Use drm_dev_get() and
> > > + * drm_dev_put() to take and drop further ref-counts.
> > > + *
> > > + * It is recommended that drivers embed &struct drm_device into their own device
> > > + * structure.
> > > + *
> > > + * Note that this manages the lifetime of the resulting &drm_device
> > > + * automatically using devres.
> > Hmm, no this is managed by drmres???
>
> Yup, the next sentence explains how. And note that we're already using
> this in the form of devm_drm_dev_init. So not clear what's unclear here
> ...
>
> Thanks for your comments.
> -Daniel
>
>
> >
> >
> > > + * The DRM device initialized with this function is
> > > + * automatically put on driver detach using drm_dev_put().
> > > + *
> > > + * RETURNS:
> > > + * Pointer to new DRM device, or ERR_PTR on failure.
> > > + */
> > > +#define devm_drm_dev_alloc(parent, driver, type, member) \
> > > + ((type *) __devm_drm_dev_alloc(parent, driver, sizeof(type), \
> > > + offsetof(type, member)))
> > > +
> > > struct drm_device *drm_dev_alloc(struct drm_driver *driver,
> > > struct device *parent);
> > > int drm_dev_register(struct drm_device *dev, unsigned long flags);
> > > --
> > > 2.25.1
> > >
> > > _______________________________________________
> > > dri-devel mailing list
> > > dri-devel@lists.freedesktop.org
> > > https://lists.freedesktop.org/mailman/listinfo/dri-devel
>
> --
> Daniel Vetter
> Software Engineer, Intel Corporation
> http://blog.ffwll.ch
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 33/44] drm/mcde: Don't use drm_device->dev_private
2020-04-03 13:58 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-12 0:44 ` Linus Walleij
-1 siblings, 0 replies; 262+ messages in thread
From: Linus Walleij @ 2020-04-12 0:44 UTC (permalink / raw)
To: Daniel Vetter; +Cc: Daniel Vetter, Intel Graphics Development, DRI Development
On Fri, Apr 3, 2020 at 3:59 PM Daniel Vetter <daniel.vetter@ffwll.ch> wrote:
> Upcasting using a container_of macro is more typesafe, faster and
> easier for the compiler to optimize.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Linus Walleij <linus.walleij@linaro.org>
Nice, thanks!
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Yours,
Linus Walleij
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [Intel-gfx] [PATCH 33/44] drm/mcde: Don't use drm_device->dev_private
@ 2020-04-12 0:44 ` Linus Walleij
0 siblings, 0 replies; 262+ messages in thread
From: Linus Walleij @ 2020-04-12 0:44 UTC (permalink / raw)
To: Daniel Vetter; +Cc: Daniel Vetter, Intel Graphics Development, DRI Development
On Fri, Apr 3, 2020 at 3:59 PM Daniel Vetter <daniel.vetter@ffwll.ch> wrote:
> Upcasting using a container_of macro is more typesafe, faster and
> easier for the compiler to optimize.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Linus Walleij <linus.walleij@linaro.org>
Nice, thanks!
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Yours,
Linus Walleij
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 27/44] drm/tidss: Use devm_drm_dev_alloc
2020-04-03 13:58 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-14 9:55 ` Jyri Sarha
-1 siblings, 0 replies; 262+ messages in thread
From: Jyri Sarha @ 2020-04-14 9:55 UTC (permalink / raw)
To: Daniel Vetter, DRI Development
Cc: Daniel Vetter, Intel Graphics Development, Tomi Valkeinen
On 03/04/2020 16:58, Daniel Vetter wrote:
> Already using devm_drm_dev_init, so very simple replacment.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Jyri Sarha <jsarha@ti.com>
> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Tested-by: Jyri Sarha <jsarha@ti.com>
> ---
> drivers/gpu/drm/tidss/tidss_drv.c | 15 ++++-----------
> 1 file changed, 4 insertions(+), 11 deletions(-)
>
> diff --git a/drivers/gpu/drm/tidss/tidss_drv.c b/drivers/gpu/drm/tidss/tidss_drv.c
> index ad449d104306..7d4465d58be8 100644
> --- a/drivers/gpu/drm/tidss/tidss_drv.c
> +++ b/drivers/gpu/drm/tidss/tidss_drv.c
> @@ -135,20 +135,13 @@ static int tidss_probe(struct platform_device *pdev)
>
> dev_dbg(dev, "%s\n", __func__);
>
> - /* Can't use devm_* since drm_device's lifetime may exceed dev's */
> - tidss = kzalloc(sizeof(*tidss), GFP_KERNEL);
> - if (!tidss)
> - return -ENOMEM;
> + tidss = devm_drm_dev_alloc(&pdev->dev, &tidss_driver,
> + struct tidss_device, ddev);
> + if (IS_ERR(tidss))
> + return PTR_ERR(tidss);
>
> ddev = &tidss->ddev;
>
> - ret = devm_drm_dev_init(&pdev->dev, ddev, &tidss_driver);
> - if (ret) {
> - kfree(ddev);
> - return ret;
> - }
> - drmm_add_final_kfree(ddev, tidss);
> -
> tidss->dev = dev;
> tidss->feat = of_device_get_match_data(dev);
>
>
--
Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki.
Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [Intel-gfx] [PATCH 27/44] drm/tidss: Use devm_drm_dev_alloc
@ 2020-04-14 9:55 ` Jyri Sarha
0 siblings, 0 replies; 262+ messages in thread
From: Jyri Sarha @ 2020-04-14 9:55 UTC (permalink / raw)
To: Daniel Vetter, DRI Development
Cc: Daniel Vetter, Intel Graphics Development, Tomi Valkeinen
On 03/04/2020 16:58, Daniel Vetter wrote:
> Already using devm_drm_dev_init, so very simple replacment.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Jyri Sarha <jsarha@ti.com>
> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Tested-by: Jyri Sarha <jsarha@ti.com>
> ---
> drivers/gpu/drm/tidss/tidss_drv.c | 15 ++++-----------
> 1 file changed, 4 insertions(+), 11 deletions(-)
>
> diff --git a/drivers/gpu/drm/tidss/tidss_drv.c b/drivers/gpu/drm/tidss/tidss_drv.c
> index ad449d104306..7d4465d58be8 100644
> --- a/drivers/gpu/drm/tidss/tidss_drv.c
> +++ b/drivers/gpu/drm/tidss/tidss_drv.c
> @@ -135,20 +135,13 @@ static int tidss_probe(struct platform_device *pdev)
>
> dev_dbg(dev, "%s\n", __func__);
>
> - /* Can't use devm_* since drm_device's lifetime may exceed dev's */
> - tidss = kzalloc(sizeof(*tidss), GFP_KERNEL);
> - if (!tidss)
> - return -ENOMEM;
> + tidss = devm_drm_dev_alloc(&pdev->dev, &tidss_driver,
> + struct tidss_device, ddev);
> + if (IS_ERR(tidss))
> + return PTR_ERR(tidss);
>
> ddev = &tidss->ddev;
>
> - ret = devm_drm_dev_init(&pdev->dev, ddev, &tidss_driver);
> - if (ret) {
> - kfree(ddev);
> - return ret;
> - }
> - drmm_add_final_kfree(ddev, tidss);
> -
> tidss->dev = dev;
> tidss->feat = of_device_get_match_data(dev);
>
>
--
Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki.
Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 28/44] drm/tidss: Don't use drm_device->dev_private
2020-04-03 13:58 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-14 9:55 ` Jyri Sarha
-1 siblings, 0 replies; 262+ messages in thread
From: Jyri Sarha @ 2020-04-14 9:55 UTC (permalink / raw)
To: Daniel Vetter, DRI Development
Cc: Daniel Vetter, Intel Graphics Development, Tomi Valkeinen
On 03/04/2020 16:58, Daniel Vetter wrote:
> Upcasting using a container_of macro is more typesafe, faster and
> easier for the compiler to optimize.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Jyri Sarha <jsarha@ti.com>
> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Tested-by: Jyri Sarha <jsarha@ti.com>
> ---
> drivers/gpu/drm/tidss/tidss_crtc.c | 16 ++++++++--------
> drivers/gpu/drm/tidss/tidss_drv.c | 2 --
> drivers/gpu/drm/tidss/tidss_drv.h | 2 ++
> drivers/gpu/drm/tidss/tidss_irq.c | 12 ++++++------
> drivers/gpu/drm/tidss/tidss_kms.c | 2 +-
> drivers/gpu/drm/tidss/tidss_plane.c | 6 +++---
> 6 files changed, 20 insertions(+), 20 deletions(-)
>
> diff --git a/drivers/gpu/drm/tidss/tidss_crtc.c b/drivers/gpu/drm/tidss/tidss_crtc.c
> index d4ce9bab8c7e..2396262c09e4 100644
> --- a/drivers/gpu/drm/tidss/tidss_crtc.c
> +++ b/drivers/gpu/drm/tidss/tidss_crtc.c
> @@ -24,7 +24,7 @@
> static void tidss_crtc_finish_page_flip(struct tidss_crtc *tcrtc)
> {
> struct drm_device *ddev = tcrtc->crtc.dev;
> - struct tidss_device *tidss = ddev->dev_private;
> + struct tidss_device *tidss = to_tidss(ddev);
> struct drm_pending_vblank_event *event;
> unsigned long flags;
> bool busy;
> @@ -88,7 +88,7 @@ static int tidss_crtc_atomic_check(struct drm_crtc *crtc,
> struct drm_crtc_state *state)
> {
> struct drm_device *ddev = crtc->dev;
> - struct tidss_device *tidss = ddev->dev_private;
> + struct tidss_device *tidss = to_tidss(ddev);
> struct dispc_device *dispc = tidss->dispc;
> struct tidss_crtc *tcrtc = to_tidss_crtc(crtc);
> u32 hw_videoport = tcrtc->hw_videoport;
> @@ -165,7 +165,7 @@ static void tidss_crtc_atomic_flush(struct drm_crtc *crtc,
> {
> struct tidss_crtc *tcrtc = to_tidss_crtc(crtc);
> struct drm_device *ddev = crtc->dev;
> - struct tidss_device *tidss = ddev->dev_private;
> + struct tidss_device *tidss = to_tidss(ddev);
> unsigned long flags;
>
> dev_dbg(ddev->dev,
> @@ -216,7 +216,7 @@ static void tidss_crtc_atomic_enable(struct drm_crtc *crtc,
> {
> struct tidss_crtc *tcrtc = to_tidss_crtc(crtc);
> struct drm_device *ddev = crtc->dev;
> - struct tidss_device *tidss = ddev->dev_private;
> + struct tidss_device *tidss = to_tidss(ddev);
> const struct drm_display_mode *mode = &crtc->state->adjusted_mode;
> unsigned long flags;
> int r;
> @@ -259,7 +259,7 @@ static void tidss_crtc_atomic_disable(struct drm_crtc *crtc,
> {
> struct tidss_crtc *tcrtc = to_tidss_crtc(crtc);
> struct drm_device *ddev = crtc->dev;
> - struct tidss_device *tidss = ddev->dev_private;
> + struct tidss_device *tidss = to_tidss(ddev);
> unsigned long flags;
>
> dev_dbg(ddev->dev, "%s, event %p\n", __func__, crtc->state->event);
> @@ -295,7 +295,7 @@ enum drm_mode_status tidss_crtc_mode_valid(struct drm_crtc *crtc,
> {
> struct tidss_crtc *tcrtc = to_tidss_crtc(crtc);
> struct drm_device *ddev = crtc->dev;
> - struct tidss_device *tidss = ddev->dev_private;
> + struct tidss_device *tidss = to_tidss(ddev);
>
> return dispc_vp_mode_valid(tidss->dispc, tcrtc->hw_videoport, mode);
> }
> @@ -314,7 +314,7 @@ static const struct drm_crtc_helper_funcs tidss_crtc_helper_funcs = {
> static int tidss_crtc_enable_vblank(struct drm_crtc *crtc)
> {
> struct drm_device *ddev = crtc->dev;
> - struct tidss_device *tidss = ddev->dev_private;
> + struct tidss_device *tidss = to_tidss(ddev);
>
> dev_dbg(ddev->dev, "%s\n", __func__);
>
> @@ -328,7 +328,7 @@ static int tidss_crtc_enable_vblank(struct drm_crtc *crtc)
> static void tidss_crtc_disable_vblank(struct drm_crtc *crtc)
> {
> struct drm_device *ddev = crtc->dev;
> - struct tidss_device *tidss = ddev->dev_private;
> + struct tidss_device *tidss = to_tidss(ddev);
>
> dev_dbg(ddev->dev, "%s\n", __func__);
>
> diff --git a/drivers/gpu/drm/tidss/tidss_drv.c b/drivers/gpu/drm/tidss/tidss_drv.c
> index 7d4465d58be8..99edc66ebdef 100644
> --- a/drivers/gpu/drm/tidss/tidss_drv.c
> +++ b/drivers/gpu/drm/tidss/tidss_drv.c
> @@ -147,8 +147,6 @@ static int tidss_probe(struct platform_device *pdev)
>
> platform_set_drvdata(pdev, tidss);
>
> - ddev->dev_private = tidss;
> -
> ret = dispc_init(tidss);
> if (ret) {
> dev_err(dev, "failed to initialize dispc: %d\n", ret);
> diff --git a/drivers/gpu/drm/tidss/tidss_drv.h b/drivers/gpu/drm/tidss/tidss_drv.h
> index e2aa6436ad18..b23cd95c8d78 100644
> --- a/drivers/gpu/drm/tidss/tidss_drv.h
> +++ b/drivers/gpu/drm/tidss/tidss_drv.h
> @@ -33,6 +33,8 @@ struct tidss_device {
> struct drm_atomic_state *saved_state;
> };
>
> +#define to_tidss(__dev) container_of(__dev, struct tidss_device, ddev)
> +
> int tidss_runtime_get(struct tidss_device *tidss);
> void tidss_runtime_put(struct tidss_device *tidss);
>
> diff --git a/drivers/gpu/drm/tidss/tidss_irq.c b/drivers/gpu/drm/tidss/tidss_irq.c
> index 612c046738e5..1b80f2d62e0a 100644
> --- a/drivers/gpu/drm/tidss/tidss_irq.c
> +++ b/drivers/gpu/drm/tidss/tidss_irq.c
> @@ -23,7 +23,7 @@ static void tidss_irq_update(struct tidss_device *tidss)
> void tidss_irq_enable_vblank(struct drm_crtc *crtc)
> {
> struct drm_device *ddev = crtc->dev;
> - struct tidss_device *tidss = ddev->dev_private;
> + struct tidss_device *tidss = to_tidss(ddev);
> struct tidss_crtc *tcrtc = to_tidss_crtc(crtc);
> u32 hw_videoport = tcrtc->hw_videoport;
> unsigned long flags;
> @@ -38,7 +38,7 @@ void tidss_irq_enable_vblank(struct drm_crtc *crtc)
> void tidss_irq_disable_vblank(struct drm_crtc *crtc)
> {
> struct drm_device *ddev = crtc->dev;
> - struct tidss_device *tidss = ddev->dev_private;
> + struct tidss_device *tidss = to_tidss(ddev);
> struct tidss_crtc *tcrtc = to_tidss_crtc(crtc);
> u32 hw_videoport = tcrtc->hw_videoport;
> unsigned long flags;
> @@ -53,7 +53,7 @@ void tidss_irq_disable_vblank(struct drm_crtc *crtc)
> irqreturn_t tidss_irq_handler(int irq, void *arg)
> {
> struct drm_device *ddev = (struct drm_device *)arg;
> - struct tidss_device *tidss = ddev->dev_private;
> + struct tidss_device *tidss = to_tidss(ddev);
> unsigned int id;
> dispc_irq_t irqstatus;
>
> @@ -95,7 +95,7 @@ void tidss_irq_resume(struct tidss_device *tidss)
>
> void tidss_irq_preinstall(struct drm_device *ddev)
> {
> - struct tidss_device *tidss = ddev->dev_private;
> + struct tidss_device *tidss = to_tidss(ddev);
>
> spin_lock_init(&tidss->wait_lock);
>
> @@ -109,7 +109,7 @@ void tidss_irq_preinstall(struct drm_device *ddev)
>
> int tidss_irq_postinstall(struct drm_device *ddev)
> {
> - struct tidss_device *tidss = ddev->dev_private;
> + struct tidss_device *tidss = to_tidss(ddev);
> unsigned long flags;
> unsigned int i;
>
> @@ -138,7 +138,7 @@ int tidss_irq_postinstall(struct drm_device *ddev)
>
> void tidss_irq_uninstall(struct drm_device *ddev)
> {
> - struct tidss_device *tidss = ddev->dev_private;
> + struct tidss_device *tidss = to_tidss(ddev);
>
> tidss_runtime_get(tidss);
> dispc_set_irqenable(tidss->dispc, 0);
> diff --git a/drivers/gpu/drm/tidss/tidss_kms.c b/drivers/gpu/drm/tidss/tidss_kms.c
> index 4bd339a467a4..4b99e9fa84a5 100644
> --- a/drivers/gpu/drm/tidss/tidss_kms.c
> +++ b/drivers/gpu/drm/tidss/tidss_kms.c
> @@ -25,7 +25,7 @@
> static void tidss_atomic_commit_tail(struct drm_atomic_state *old_state)
> {
> struct drm_device *ddev = old_state->dev;
> - struct tidss_device *tidss = ddev->dev_private;
> + struct tidss_device *tidss = to_tidss(ddev);
>
> dev_dbg(ddev->dev, "%s\n", __func__);
>
> diff --git a/drivers/gpu/drm/tidss/tidss_plane.c b/drivers/gpu/drm/tidss/tidss_plane.c
> index ff99b2dd4a17..23bb3e59504b 100644
> --- a/drivers/gpu/drm/tidss/tidss_plane.c
> +++ b/drivers/gpu/drm/tidss/tidss_plane.c
> @@ -22,7 +22,7 @@ static int tidss_plane_atomic_check(struct drm_plane *plane,
> struct drm_plane_state *state)
> {
> struct drm_device *ddev = plane->dev;
> - struct tidss_device *tidss = ddev->dev_private;
> + struct tidss_device *tidss = to_tidss(ddev);
> struct tidss_plane *tplane = to_tidss_plane(plane);
> const struct drm_format_info *finfo;
> struct drm_crtc_state *crtc_state;
> @@ -101,7 +101,7 @@ static void tidss_plane_atomic_update(struct drm_plane *plane,
> struct drm_plane_state *old_state)
> {
> struct drm_device *ddev = plane->dev;
> - struct tidss_device *tidss = ddev->dev_private;
> + struct tidss_device *tidss = to_tidss(ddev);
> struct tidss_plane *tplane = to_tidss_plane(plane);
> struct drm_plane_state *state = plane->state;
> u32 hw_videoport;
> @@ -133,7 +133,7 @@ static void tidss_plane_atomic_disable(struct drm_plane *plane,
> struct drm_plane_state *old_state)
> {
> struct drm_device *ddev = plane->dev;
> - struct tidss_device *tidss = ddev->dev_private;
> + struct tidss_device *tidss = to_tidss(ddev);
> struct tidss_plane *tplane = to_tidss_plane(plane);
>
> dev_dbg(ddev->dev, "%s\n", __func__);
>
--
Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki.
Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [Intel-gfx] [PATCH 28/44] drm/tidss: Don't use drm_device->dev_private
@ 2020-04-14 9:55 ` Jyri Sarha
0 siblings, 0 replies; 262+ messages in thread
From: Jyri Sarha @ 2020-04-14 9:55 UTC (permalink / raw)
To: Daniel Vetter, DRI Development
Cc: Daniel Vetter, Intel Graphics Development, Tomi Valkeinen
On 03/04/2020 16:58, Daniel Vetter wrote:
> Upcasting using a container_of macro is more typesafe, faster and
> easier for the compiler to optimize.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Jyri Sarha <jsarha@ti.com>
> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Tested-by: Jyri Sarha <jsarha@ti.com>
> ---
> drivers/gpu/drm/tidss/tidss_crtc.c | 16 ++++++++--------
> drivers/gpu/drm/tidss/tidss_drv.c | 2 --
> drivers/gpu/drm/tidss/tidss_drv.h | 2 ++
> drivers/gpu/drm/tidss/tidss_irq.c | 12 ++++++------
> drivers/gpu/drm/tidss/tidss_kms.c | 2 +-
> drivers/gpu/drm/tidss/tidss_plane.c | 6 +++---
> 6 files changed, 20 insertions(+), 20 deletions(-)
>
> diff --git a/drivers/gpu/drm/tidss/tidss_crtc.c b/drivers/gpu/drm/tidss/tidss_crtc.c
> index d4ce9bab8c7e..2396262c09e4 100644
> --- a/drivers/gpu/drm/tidss/tidss_crtc.c
> +++ b/drivers/gpu/drm/tidss/tidss_crtc.c
> @@ -24,7 +24,7 @@
> static void tidss_crtc_finish_page_flip(struct tidss_crtc *tcrtc)
> {
> struct drm_device *ddev = tcrtc->crtc.dev;
> - struct tidss_device *tidss = ddev->dev_private;
> + struct tidss_device *tidss = to_tidss(ddev);
> struct drm_pending_vblank_event *event;
> unsigned long flags;
> bool busy;
> @@ -88,7 +88,7 @@ static int tidss_crtc_atomic_check(struct drm_crtc *crtc,
> struct drm_crtc_state *state)
> {
> struct drm_device *ddev = crtc->dev;
> - struct tidss_device *tidss = ddev->dev_private;
> + struct tidss_device *tidss = to_tidss(ddev);
> struct dispc_device *dispc = tidss->dispc;
> struct tidss_crtc *tcrtc = to_tidss_crtc(crtc);
> u32 hw_videoport = tcrtc->hw_videoport;
> @@ -165,7 +165,7 @@ static void tidss_crtc_atomic_flush(struct drm_crtc *crtc,
> {
> struct tidss_crtc *tcrtc = to_tidss_crtc(crtc);
> struct drm_device *ddev = crtc->dev;
> - struct tidss_device *tidss = ddev->dev_private;
> + struct tidss_device *tidss = to_tidss(ddev);
> unsigned long flags;
>
> dev_dbg(ddev->dev,
> @@ -216,7 +216,7 @@ static void tidss_crtc_atomic_enable(struct drm_crtc *crtc,
> {
> struct tidss_crtc *tcrtc = to_tidss_crtc(crtc);
> struct drm_device *ddev = crtc->dev;
> - struct tidss_device *tidss = ddev->dev_private;
> + struct tidss_device *tidss = to_tidss(ddev);
> const struct drm_display_mode *mode = &crtc->state->adjusted_mode;
> unsigned long flags;
> int r;
> @@ -259,7 +259,7 @@ static void tidss_crtc_atomic_disable(struct drm_crtc *crtc,
> {
> struct tidss_crtc *tcrtc = to_tidss_crtc(crtc);
> struct drm_device *ddev = crtc->dev;
> - struct tidss_device *tidss = ddev->dev_private;
> + struct tidss_device *tidss = to_tidss(ddev);
> unsigned long flags;
>
> dev_dbg(ddev->dev, "%s, event %p\n", __func__, crtc->state->event);
> @@ -295,7 +295,7 @@ enum drm_mode_status tidss_crtc_mode_valid(struct drm_crtc *crtc,
> {
> struct tidss_crtc *tcrtc = to_tidss_crtc(crtc);
> struct drm_device *ddev = crtc->dev;
> - struct tidss_device *tidss = ddev->dev_private;
> + struct tidss_device *tidss = to_tidss(ddev);
>
> return dispc_vp_mode_valid(tidss->dispc, tcrtc->hw_videoport, mode);
> }
> @@ -314,7 +314,7 @@ static const struct drm_crtc_helper_funcs tidss_crtc_helper_funcs = {
> static int tidss_crtc_enable_vblank(struct drm_crtc *crtc)
> {
> struct drm_device *ddev = crtc->dev;
> - struct tidss_device *tidss = ddev->dev_private;
> + struct tidss_device *tidss = to_tidss(ddev);
>
> dev_dbg(ddev->dev, "%s\n", __func__);
>
> @@ -328,7 +328,7 @@ static int tidss_crtc_enable_vblank(struct drm_crtc *crtc)
> static void tidss_crtc_disable_vblank(struct drm_crtc *crtc)
> {
> struct drm_device *ddev = crtc->dev;
> - struct tidss_device *tidss = ddev->dev_private;
> + struct tidss_device *tidss = to_tidss(ddev);
>
> dev_dbg(ddev->dev, "%s\n", __func__);
>
> diff --git a/drivers/gpu/drm/tidss/tidss_drv.c b/drivers/gpu/drm/tidss/tidss_drv.c
> index 7d4465d58be8..99edc66ebdef 100644
> --- a/drivers/gpu/drm/tidss/tidss_drv.c
> +++ b/drivers/gpu/drm/tidss/tidss_drv.c
> @@ -147,8 +147,6 @@ static int tidss_probe(struct platform_device *pdev)
>
> platform_set_drvdata(pdev, tidss);
>
> - ddev->dev_private = tidss;
> -
> ret = dispc_init(tidss);
> if (ret) {
> dev_err(dev, "failed to initialize dispc: %d\n", ret);
> diff --git a/drivers/gpu/drm/tidss/tidss_drv.h b/drivers/gpu/drm/tidss/tidss_drv.h
> index e2aa6436ad18..b23cd95c8d78 100644
> --- a/drivers/gpu/drm/tidss/tidss_drv.h
> +++ b/drivers/gpu/drm/tidss/tidss_drv.h
> @@ -33,6 +33,8 @@ struct tidss_device {
> struct drm_atomic_state *saved_state;
> };
>
> +#define to_tidss(__dev) container_of(__dev, struct tidss_device, ddev)
> +
> int tidss_runtime_get(struct tidss_device *tidss);
> void tidss_runtime_put(struct tidss_device *tidss);
>
> diff --git a/drivers/gpu/drm/tidss/tidss_irq.c b/drivers/gpu/drm/tidss/tidss_irq.c
> index 612c046738e5..1b80f2d62e0a 100644
> --- a/drivers/gpu/drm/tidss/tidss_irq.c
> +++ b/drivers/gpu/drm/tidss/tidss_irq.c
> @@ -23,7 +23,7 @@ static void tidss_irq_update(struct tidss_device *tidss)
> void tidss_irq_enable_vblank(struct drm_crtc *crtc)
> {
> struct drm_device *ddev = crtc->dev;
> - struct tidss_device *tidss = ddev->dev_private;
> + struct tidss_device *tidss = to_tidss(ddev);
> struct tidss_crtc *tcrtc = to_tidss_crtc(crtc);
> u32 hw_videoport = tcrtc->hw_videoport;
> unsigned long flags;
> @@ -38,7 +38,7 @@ void tidss_irq_enable_vblank(struct drm_crtc *crtc)
> void tidss_irq_disable_vblank(struct drm_crtc *crtc)
> {
> struct drm_device *ddev = crtc->dev;
> - struct tidss_device *tidss = ddev->dev_private;
> + struct tidss_device *tidss = to_tidss(ddev);
> struct tidss_crtc *tcrtc = to_tidss_crtc(crtc);
> u32 hw_videoport = tcrtc->hw_videoport;
> unsigned long flags;
> @@ -53,7 +53,7 @@ void tidss_irq_disable_vblank(struct drm_crtc *crtc)
> irqreturn_t tidss_irq_handler(int irq, void *arg)
> {
> struct drm_device *ddev = (struct drm_device *)arg;
> - struct tidss_device *tidss = ddev->dev_private;
> + struct tidss_device *tidss = to_tidss(ddev);
> unsigned int id;
> dispc_irq_t irqstatus;
>
> @@ -95,7 +95,7 @@ void tidss_irq_resume(struct tidss_device *tidss)
>
> void tidss_irq_preinstall(struct drm_device *ddev)
> {
> - struct tidss_device *tidss = ddev->dev_private;
> + struct tidss_device *tidss = to_tidss(ddev);
>
> spin_lock_init(&tidss->wait_lock);
>
> @@ -109,7 +109,7 @@ void tidss_irq_preinstall(struct drm_device *ddev)
>
> int tidss_irq_postinstall(struct drm_device *ddev)
> {
> - struct tidss_device *tidss = ddev->dev_private;
> + struct tidss_device *tidss = to_tidss(ddev);
> unsigned long flags;
> unsigned int i;
>
> @@ -138,7 +138,7 @@ int tidss_irq_postinstall(struct drm_device *ddev)
>
> void tidss_irq_uninstall(struct drm_device *ddev)
> {
> - struct tidss_device *tidss = ddev->dev_private;
> + struct tidss_device *tidss = to_tidss(ddev);
>
> tidss_runtime_get(tidss);
> dispc_set_irqenable(tidss->dispc, 0);
> diff --git a/drivers/gpu/drm/tidss/tidss_kms.c b/drivers/gpu/drm/tidss/tidss_kms.c
> index 4bd339a467a4..4b99e9fa84a5 100644
> --- a/drivers/gpu/drm/tidss/tidss_kms.c
> +++ b/drivers/gpu/drm/tidss/tidss_kms.c
> @@ -25,7 +25,7 @@
> static void tidss_atomic_commit_tail(struct drm_atomic_state *old_state)
> {
> struct drm_device *ddev = old_state->dev;
> - struct tidss_device *tidss = ddev->dev_private;
> + struct tidss_device *tidss = to_tidss(ddev);
>
> dev_dbg(ddev->dev, "%s\n", __func__);
>
> diff --git a/drivers/gpu/drm/tidss/tidss_plane.c b/drivers/gpu/drm/tidss/tidss_plane.c
> index ff99b2dd4a17..23bb3e59504b 100644
> --- a/drivers/gpu/drm/tidss/tidss_plane.c
> +++ b/drivers/gpu/drm/tidss/tidss_plane.c
> @@ -22,7 +22,7 @@ static int tidss_plane_atomic_check(struct drm_plane *plane,
> struct drm_plane_state *state)
> {
> struct drm_device *ddev = plane->dev;
> - struct tidss_device *tidss = ddev->dev_private;
> + struct tidss_device *tidss = to_tidss(ddev);
> struct tidss_plane *tplane = to_tidss_plane(plane);
> const struct drm_format_info *finfo;
> struct drm_crtc_state *crtc_state;
> @@ -101,7 +101,7 @@ static void tidss_plane_atomic_update(struct drm_plane *plane,
> struct drm_plane_state *old_state)
> {
> struct drm_device *ddev = plane->dev;
> - struct tidss_device *tidss = ddev->dev_private;
> + struct tidss_device *tidss = to_tidss(ddev);
> struct tidss_plane *tplane = to_tidss_plane(plane);
> struct drm_plane_state *state = plane->state;
> u32 hw_videoport;
> @@ -133,7 +133,7 @@ static void tidss_plane_atomic_disable(struct drm_plane *plane,
> struct drm_plane_state *old_state)
> {
> struct drm_device *ddev = plane->dev;
> - struct tidss_device *tidss = ddev->dev_private;
> + struct tidss_device *tidss = to_tidss(ddev);
> struct tidss_plane *tplane = to_tidss_plane(plane);
>
> dev_dbg(ddev->dev, "%s\n", __func__);
>
--
Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki.
Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 29/44] drm/tidss: Delete tidss->saved_state
2020-04-03 13:58 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-14 9:55 ` Jyri Sarha
-1 siblings, 0 replies; 262+ messages in thread
From: Jyri Sarha @ 2020-04-14 9:55 UTC (permalink / raw)
To: Daniel Vetter, DRI Development
Cc: Daniel Vetter, Intel Graphics Development, Tomi Valkeinen
On 03/04/2020 16:58, Daniel Vetter wrote:
> Not used anymore since the switch to suspend/resume helpers.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Jyri Sarha <jsarha@ti.com>
> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Tested-by: Jyri Sarha <jsarha@ti.com>
> ---
> drivers/gpu/drm/tidss/tidss_drv.h | 2 --
> 1 file changed, 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/tidss/tidss_drv.h b/drivers/gpu/drm/tidss/tidss_drv.h
> index b23cd95c8d78..3b0a3d87b7c4 100644
> --- a/drivers/gpu/drm/tidss/tidss_drv.h
> +++ b/drivers/gpu/drm/tidss/tidss_drv.h
> @@ -29,8 +29,6 @@ struct tidss_device {
>
> spinlock_t wait_lock; /* protects the irq masks */
> dispc_irq_t irq_mask; /* enabled irqs in addition to wait_list */
> -
> - struct drm_atomic_state *saved_state;
> };
>
> #define to_tidss(__dev) container_of(__dev, struct tidss_device, ddev)
>
--
Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki.
Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [Intel-gfx] [PATCH 29/44] drm/tidss: Delete tidss->saved_state
@ 2020-04-14 9:55 ` Jyri Sarha
0 siblings, 0 replies; 262+ messages in thread
From: Jyri Sarha @ 2020-04-14 9:55 UTC (permalink / raw)
To: Daniel Vetter, DRI Development
Cc: Daniel Vetter, Intel Graphics Development, Tomi Valkeinen
On 03/04/2020 16:58, Daniel Vetter wrote:
> Not used anymore since the switch to suspend/resume helpers.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Jyri Sarha <jsarha@ti.com>
> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Tested-by: Jyri Sarha <jsarha@ti.com>
> ---
> drivers/gpu/drm/tidss/tidss_drv.h | 2 --
> 1 file changed, 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/tidss/tidss_drv.h b/drivers/gpu/drm/tidss/tidss_drv.h
> index b23cd95c8d78..3b0a3d87b7c4 100644
> --- a/drivers/gpu/drm/tidss/tidss_drv.h
> +++ b/drivers/gpu/drm/tidss/tidss_drv.h
> @@ -29,8 +29,6 @@ struct tidss_device {
>
> spinlock_t wait_lock; /* protects the irq masks */
> dispc_irq_t irq_mask; /* enabled irqs in addition to wait_list */
> -
> - struct drm_atomic_state *saved_state;
> };
>
> #define to_tidss(__dev) container_of(__dev, struct tidss_device, ddev)
>
--
Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki.
Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 09/44] drm/vboxvidoe: use managed pci functions
2020-04-08 7:21 ` [Intel-gfx] " Sam Ravnborg
@ 2020-04-14 16:30 ` Daniel Vetter
-1 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-14 16:30 UTC (permalink / raw)
To: Sam Ravnborg
Cc: Daniel Vetter, Daniel Vetter, Intel Graphics Development,
DRI Development, Hans de Goede
On Wed, Apr 08, 2020 at 09:21:46AM +0200, Sam Ravnborg wrote:
> On Fri, Apr 03, 2020 at 03:57:53PM +0200, Daniel Vetter wrote:
> > Allows us to drop the cleanup code on the floor.
> >
> > Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> > Cc: Hans de Goede <hdegoede@redhat.com>
>
> With this change we avoid calling pci_disable_device()
> twise in case vbox_mm_init() fails.
> Once in vbox_hw_fini() and once in the error path.
Yup, I forgot to mention this in the commit message. I've added your
remark here as a quote, thanks for checking stuff in detail.
-Daniel
>
> Which is just a small extra bonus.
>
> Acked-by: Sam Ravnborg <sam@ravnborg.org>
>
> > ---
> > drivers/gpu/drm/vboxvideo/vbox_drv.c | 6 ++----
> > drivers/gpu/drm/vboxvideo/vbox_main.c | 7 +------
> > 2 files changed, 3 insertions(+), 10 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/vboxvideo/vbox_drv.c b/drivers/gpu/drm/vboxvideo/vbox_drv.c
> > index d34cddd809fd..c80695c2f6c0 100644
> > --- a/drivers/gpu/drm/vboxvideo/vbox_drv.c
> > +++ b/drivers/gpu/drm/vboxvideo/vbox_drv.c
> > @@ -55,13 +55,13 @@ static int vbox_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
> > pci_set_drvdata(pdev, vbox);
> > mutex_init(&vbox->hw_mutex);
> >
> > - ret = pci_enable_device(pdev);
> > + ret = pcim_enable_device(pdev);
> > if (ret)
> > return ret;
> >
> > ret = vbox_hw_init(vbox);
> > if (ret)
> > - goto err_pci_disable;
> > + return ret;
> >
> > ret = vbox_mm_init(vbox);
> > if (ret)
> > @@ -93,8 +93,6 @@ static int vbox_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
> > vbox_mm_fini(vbox);
> > err_hw_fini:
> > vbox_hw_fini(vbox);
> > -err_pci_disable:
> > - pci_disable_device(pdev);
> > return ret;
> > }
> >
> > diff --git a/drivers/gpu/drm/vboxvideo/vbox_main.c b/drivers/gpu/drm/vboxvideo/vbox_main.c
> > index 9dcab115a261..1336ab9795fc 100644
> > --- a/drivers/gpu/drm/vboxvideo/vbox_main.c
> > +++ b/drivers/gpu/drm/vboxvideo/vbox_main.c
> > @@ -71,8 +71,6 @@ static void vbox_accel_fini(struct vbox_private *vbox)
> >
> > for (i = 0; i < vbox->num_crtcs; ++i)
> > vbva_disable(&vbox->vbva_info[i], vbox->guest_pool, i);
> > -
> > - pci_iounmap(vbox->ddev.pdev, vbox->vbva_buffers);
> > }
> >
> > /* Do we support the 4.3 plus mode hint reporting interface? */
> > @@ -125,7 +123,7 @@ int vbox_hw_init(struct vbox_private *vbox)
> > /* Create guest-heap mem-pool use 2^4 = 16 byte chunks */
> > vbox->guest_pool = gen_pool_create(4, -1);
> > if (!vbox->guest_pool)
> > - goto err_unmap_guest_heap;
> > + return -ENOMEM;
> >
> > ret = gen_pool_add_virt(vbox->guest_pool,
> > (unsigned long)vbox->guest_heap,
> > @@ -168,8 +166,6 @@ int vbox_hw_init(struct vbox_private *vbox)
> >
> > err_destroy_guest_pool:
> > gen_pool_destroy(vbox->guest_pool);
> > -err_unmap_guest_heap:
> > - pci_iounmap(vbox->ddev.pdev, vbox->guest_heap);
> > return ret;
> > }
> >
> > @@ -177,5 +173,4 @@ void vbox_hw_fini(struct vbox_private *vbox)
> > {
> > vbox_accel_fini(vbox);
> > gen_pool_destroy(vbox->guest_pool);
> > - pci_iounmap(vbox->ddev.pdev, vbox->guest_heap);
> > }
> > --
> > 2.25.1
> >
> > _______________________________________________
> > dri-devel mailing list
> > dri-devel@lists.freedesktop.org
> > https://lists.freedesktop.org/mailman/listinfo/dri-devel
--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [Intel-gfx] [PATCH 09/44] drm/vboxvidoe: use managed pci functions
@ 2020-04-14 16:30 ` Daniel Vetter
0 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-14 16:30 UTC (permalink / raw)
To: Sam Ravnborg
Cc: Daniel Vetter, Daniel Vetter, Intel Graphics Development,
DRI Development
On Wed, Apr 08, 2020 at 09:21:46AM +0200, Sam Ravnborg wrote:
> On Fri, Apr 03, 2020 at 03:57:53PM +0200, Daniel Vetter wrote:
> > Allows us to drop the cleanup code on the floor.
> >
> > Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> > Cc: Hans de Goede <hdegoede@redhat.com>
>
> With this change we avoid calling pci_disable_device()
> twise in case vbox_mm_init() fails.
> Once in vbox_hw_fini() and once in the error path.
Yup, I forgot to mention this in the commit message. I've added your
remark here as a quote, thanks for checking stuff in detail.
-Daniel
>
> Which is just a small extra bonus.
>
> Acked-by: Sam Ravnborg <sam@ravnborg.org>
>
> > ---
> > drivers/gpu/drm/vboxvideo/vbox_drv.c | 6 ++----
> > drivers/gpu/drm/vboxvideo/vbox_main.c | 7 +------
> > 2 files changed, 3 insertions(+), 10 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/vboxvideo/vbox_drv.c b/drivers/gpu/drm/vboxvideo/vbox_drv.c
> > index d34cddd809fd..c80695c2f6c0 100644
> > --- a/drivers/gpu/drm/vboxvideo/vbox_drv.c
> > +++ b/drivers/gpu/drm/vboxvideo/vbox_drv.c
> > @@ -55,13 +55,13 @@ static int vbox_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
> > pci_set_drvdata(pdev, vbox);
> > mutex_init(&vbox->hw_mutex);
> >
> > - ret = pci_enable_device(pdev);
> > + ret = pcim_enable_device(pdev);
> > if (ret)
> > return ret;
> >
> > ret = vbox_hw_init(vbox);
> > if (ret)
> > - goto err_pci_disable;
> > + return ret;
> >
> > ret = vbox_mm_init(vbox);
> > if (ret)
> > @@ -93,8 +93,6 @@ static int vbox_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
> > vbox_mm_fini(vbox);
> > err_hw_fini:
> > vbox_hw_fini(vbox);
> > -err_pci_disable:
> > - pci_disable_device(pdev);
> > return ret;
> > }
> >
> > diff --git a/drivers/gpu/drm/vboxvideo/vbox_main.c b/drivers/gpu/drm/vboxvideo/vbox_main.c
> > index 9dcab115a261..1336ab9795fc 100644
> > --- a/drivers/gpu/drm/vboxvideo/vbox_main.c
> > +++ b/drivers/gpu/drm/vboxvideo/vbox_main.c
> > @@ -71,8 +71,6 @@ static void vbox_accel_fini(struct vbox_private *vbox)
> >
> > for (i = 0; i < vbox->num_crtcs; ++i)
> > vbva_disable(&vbox->vbva_info[i], vbox->guest_pool, i);
> > -
> > - pci_iounmap(vbox->ddev.pdev, vbox->vbva_buffers);
> > }
> >
> > /* Do we support the 4.3 plus mode hint reporting interface? */
> > @@ -125,7 +123,7 @@ int vbox_hw_init(struct vbox_private *vbox)
> > /* Create guest-heap mem-pool use 2^4 = 16 byte chunks */
> > vbox->guest_pool = gen_pool_create(4, -1);
> > if (!vbox->guest_pool)
> > - goto err_unmap_guest_heap;
> > + return -ENOMEM;
> >
> > ret = gen_pool_add_virt(vbox->guest_pool,
> > (unsigned long)vbox->guest_heap,
> > @@ -168,8 +166,6 @@ int vbox_hw_init(struct vbox_private *vbox)
> >
> > err_destroy_guest_pool:
> > gen_pool_destroy(vbox->guest_pool);
> > -err_unmap_guest_heap:
> > - pci_iounmap(vbox->ddev.pdev, vbox->guest_heap);
> > return ret;
> > }
> >
> > @@ -177,5 +173,4 @@ void vbox_hw_fini(struct vbox_private *vbox)
> > {
> > vbox_accel_fini(vbox);
> > gen_pool_destroy(vbox->guest_pool);
> > - pci_iounmap(vbox->ddev.pdev, vbox->guest_heap);
> > }
> > --
> > 2.25.1
> >
> > _______________________________________________
> > dri-devel mailing list
> > dri-devel@lists.freedesktop.org
> > https://lists.freedesktop.org/mailman/listinfo/dri-devel
--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 03/44] drm/device: Deprecate dev_private harder
2020-04-08 7:02 ` [Intel-gfx] " Sam Ravnborg
@ 2020-04-14 16:43 ` Daniel Vetter
-1 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-14 16:43 UTC (permalink / raw)
To: Sam Ravnborg
Cc: Daniel Vetter, Intel Graphics Development, DRI Development,
Daniel Vetter
On Wed, Apr 08, 2020 at 09:02:07AM +0200, Sam Ravnborg wrote:
> On Fri, Apr 03, 2020 at 03:57:47PM +0200, Daniel Vetter wrote:
> > We've had lots of conversions to embeddeding, but didn't stop using
> > ->dev_private. Which defeats the point of this.
> >
> > Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Went right ahead and pushed this since a doc patch only, thanks for taking
a look!
-Daniel
> > ---
> > include/drm/drm_device.h | 9 ++++++---
> > 1 file changed, 6 insertions(+), 3 deletions(-)
> >
> > diff --git a/include/drm/drm_device.h b/include/drm/drm_device.h
> > index d39132b477dd..a55874db9dd4 100644
> > --- a/include/drm/drm_device.h
> > +++ b/include/drm/drm_device.h
> > @@ -88,9 +88,12 @@ struct drm_device {
> > /**
> > * @dev_private:
> > *
> > - * DRM driver private data. Instead of using this pointer it is
> > - * recommended that drivers use drm_dev_init() and embed struct
> > - * &drm_device in their larger per-device structure.
> > + * DRM driver private data. This is deprecated and should be left set to
> > + * NULL.
> > + *
> > + * Instead of using this pointer it is recommended that drivers use
> > + * drm_dev_init() and embed struct &drm_device in their larger
> > + * per-device structure.
> > */
> > void *dev_private;
> >
> > --
> > 2.25.1
> >
> > _______________________________________________
> > dri-devel mailing list
> > dri-devel@lists.freedesktop.org
> > https://lists.freedesktop.org/mailman/listinfo/dri-devel
--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [Intel-gfx] [PATCH 03/44] drm/device: Deprecate dev_private harder
@ 2020-04-14 16:43 ` Daniel Vetter
0 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-14 16:43 UTC (permalink / raw)
To: Sam Ravnborg
Cc: Daniel Vetter, Intel Graphics Development, DRI Development,
Daniel Vetter
On Wed, Apr 08, 2020 at 09:02:07AM +0200, Sam Ravnborg wrote:
> On Fri, Apr 03, 2020 at 03:57:47PM +0200, Daniel Vetter wrote:
> > We've had lots of conversions to embeddeding, but didn't stop using
> > ->dev_private. Which defeats the point of this.
> >
> > Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Went right ahead and pushed this since a doc patch only, thanks for taking
a look!
-Daniel
> > ---
> > include/drm/drm_device.h | 9 ++++++---
> > 1 file changed, 6 insertions(+), 3 deletions(-)
> >
> > diff --git a/include/drm/drm_device.h b/include/drm/drm_device.h
> > index d39132b477dd..a55874db9dd4 100644
> > --- a/include/drm/drm_device.h
> > +++ b/include/drm/drm_device.h
> > @@ -88,9 +88,12 @@ struct drm_device {
> > /**
> > * @dev_private:
> > *
> > - * DRM driver private data. Instead of using this pointer it is
> > - * recommended that drivers use drm_dev_init() and embed struct
> > - * &drm_device in their larger per-device structure.
> > + * DRM driver private data. This is deprecated and should be left set to
> > + * NULL.
> > + *
> > + * Instead of using this pointer it is recommended that drivers use
> > + * drm_dev_init() and embed struct &drm_device in their larger
> > + * per-device structure.
> > */
> > void *dev_private;
> >
> > --
> > 2.25.1
> >
> > _______________________________________________
> > dri-devel mailing list
> > dri-devel@lists.freedesktop.org
> > https://lists.freedesktop.org/mailman/listinfo/dri-devel
--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 01/44] drivers/base: Always release devres on device_del
2020-04-06 13:55 ` [Intel-gfx] " Daniel Vetter
@ 2020-04-28 13:15 ` Daniel Vetter
-1 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-28 13:15 UTC (permalink / raw)
To: Greg Kroah-Hartman
Cc: Daniel Vetter, Intel Graphics Development, DRI Development,
Rafael J. Wysocki
On Mon, Apr 06, 2020 at 03:55:28PM +0200, Daniel Vetter wrote:
> On Mon, Apr 6, 2020 at 3:38 PM Greg Kroah-Hartman
> <gregkh@linuxfoundation.org> wrote:
> >
> > On Mon, Apr 06, 2020 at 02:32:51PM +0200, Daniel Vetter wrote:
> > > On Fri, Apr 3, 2020 at 3:58 PM Daniel Vetter <daniel.vetter@ffwll.ch> wrote:
> > > >
> > > > In drm we've added nice drm_device (the main gpu driver thing, which
> > > > also represents the userspace interfaces and has everything else
> > > > dangling off it) init functions using devres, devm_drm_dev_init and
> > > > soon devm_drm_dev_alloc (this patch series adds that).
> > > >
> > > > A slight trouble is that drm_device itself holds a reference on the
> > > > struct device it's sitting on top (for sysfs links and dmesg debug and
> > > > lots of other things), so there's a reference loop. For real drivers
> > > > this is broken at remove/unplug time, where all devres resources are
> > > > released device_release_driver(), before the final device reference is
> > > > dropped. So far so good.
> > > >
> > > > There's 2 exceptions:
> > > > - drm/vkms|vgem: Virtual drivers for which we create a fake/virtual
> > > > platform device to make them look more like normal devices to
> > > > userspace. These aren't drivers in the driver model sense, we simple
> > > > create a platform_device and register it.
> > > >
> > > > - drm/i915/selftests, where we create minimal mock devices, and again
> > > > the selftests aren't proper drivers in the driver model sense.
> > > >
> > > > For these two cases the reference loop isn't broken, because devres is
> > > > only cleaned up when the last device reference is dropped. But that's
> > > > not happening, because the drm_device holds that last struct device
> > > > reference.
> > > >
> > > > Thus far this wasn't a problem since the above cases simply
> > > > hand-rolled their cleanup code. But I want to convert all drivers over
> > > > to the devm_ versions, hence it would be really nice if these
> > > > virtual/fake/mock uses-cases could also be managed with devres
> > > > cleanup.
> > > >
> > > > I see three possible approaches:
> > >
> > > Restarting this at the top level, because the discussion thus far just
> > > ended in a long "you're doing it wrong", despite that I think we're
> > > doing what v4l is doing (plus/minus that we can't do an exact matching
> > > handling in drm because our uapi has a lot more warts, which we can't
> > > change because no breaking userspace).
> > >
> > > So which one of the three below is the right approach?
> > >
> > > Aside, looking at the v4l solution I think there's also a confusion
> > > about struct device representing a char device (which v4l directly
> > > uses as its userspace interface refcounted thing, and which drm does
> > > _not_ directly). And a struct device embedded into something like
> > > platform_device or a virtual device, where a driver can bind to. My
> > > question here is about the former, I don't care how cdev struct device
> > > are cleaned up one bit. Now if other subsystems relies on the devres
> > > cleanup behaviour we currently have because of such cdev usage, then
> > > yeah first approach doesn't work (and I have a big surprised that use
> > > case, but hey would actually learn something).
> > >
> > > End of aside, since again I want to figure out which of the tree
> > > approaches it the right one. Not about how wrong one of them is,
> > > ignoring the other three I laid out. And maybe there's even more
> > > options for this.
> >
> > Sorry, been swamped with other things, give me a few days to get back to
> > this, I need to dig into how you all are dealing with the virtual
> > drivers.
>
> Sure, no problem.
>
> > Doing this in the middle of the merge window is a bit rough :)
>
> Ah I always forget ... we freeze drm at -rc6, so merge window is
> actually my most relaxed time since everyone is busy and no one has
> time to report drm bugs :-)
Hi Greg,
Since -rc3 is out, had any to ponder this? Otherwise we'll be right back
in the next merge window ...
Cheers, Daniel
--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [Intel-gfx] [PATCH 01/44] drivers/base: Always release devres on device_del
@ 2020-04-28 13:15 ` Daniel Vetter
0 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-04-28 13:15 UTC (permalink / raw)
To: Greg Kroah-Hartman
Cc: Daniel Vetter, Intel Graphics Development, DRI Development,
Rafael J. Wysocki
On Mon, Apr 06, 2020 at 03:55:28PM +0200, Daniel Vetter wrote:
> On Mon, Apr 6, 2020 at 3:38 PM Greg Kroah-Hartman
> <gregkh@linuxfoundation.org> wrote:
> >
> > On Mon, Apr 06, 2020 at 02:32:51PM +0200, Daniel Vetter wrote:
> > > On Fri, Apr 3, 2020 at 3:58 PM Daniel Vetter <daniel.vetter@ffwll.ch> wrote:
> > > >
> > > > In drm we've added nice drm_device (the main gpu driver thing, which
> > > > also represents the userspace interfaces and has everything else
> > > > dangling off it) init functions using devres, devm_drm_dev_init and
> > > > soon devm_drm_dev_alloc (this patch series adds that).
> > > >
> > > > A slight trouble is that drm_device itself holds a reference on the
> > > > struct device it's sitting on top (for sysfs links and dmesg debug and
> > > > lots of other things), so there's a reference loop. For real drivers
> > > > this is broken at remove/unplug time, where all devres resources are
> > > > released device_release_driver(), before the final device reference is
> > > > dropped. So far so good.
> > > >
> > > > There's 2 exceptions:
> > > > - drm/vkms|vgem: Virtual drivers for which we create a fake/virtual
> > > > platform device to make them look more like normal devices to
> > > > userspace. These aren't drivers in the driver model sense, we simple
> > > > create a platform_device and register it.
> > > >
> > > > - drm/i915/selftests, where we create minimal mock devices, and again
> > > > the selftests aren't proper drivers in the driver model sense.
> > > >
> > > > For these two cases the reference loop isn't broken, because devres is
> > > > only cleaned up when the last device reference is dropped. But that's
> > > > not happening, because the drm_device holds that last struct device
> > > > reference.
> > > >
> > > > Thus far this wasn't a problem since the above cases simply
> > > > hand-rolled their cleanup code. But I want to convert all drivers over
> > > > to the devm_ versions, hence it would be really nice if these
> > > > virtual/fake/mock uses-cases could also be managed with devres
> > > > cleanup.
> > > >
> > > > I see three possible approaches:
> > >
> > > Restarting this at the top level, because the discussion thus far just
> > > ended in a long "you're doing it wrong", despite that I think we're
> > > doing what v4l is doing (plus/minus that we can't do an exact matching
> > > handling in drm because our uapi has a lot more warts, which we can't
> > > change because no breaking userspace).
> > >
> > > So which one of the three below is the right approach?
> > >
> > > Aside, looking at the v4l solution I think there's also a confusion
> > > about struct device representing a char device (which v4l directly
> > > uses as its userspace interface refcounted thing, and which drm does
> > > _not_ directly). And a struct device embedded into something like
> > > platform_device or a virtual device, where a driver can bind to. My
> > > question here is about the former, I don't care how cdev struct device
> > > are cleaned up one bit. Now if other subsystems relies on the devres
> > > cleanup behaviour we currently have because of such cdev usage, then
> > > yeah first approach doesn't work (and I have a big surprised that use
> > > case, but hey would actually learn something).
> > >
> > > End of aside, since again I want to figure out which of the tree
> > > approaches it the right one. Not about how wrong one of them is,
> > > ignoring the other three I laid out. And maybe there's even more
> > > options for this.
> >
> > Sorry, been swamped with other things, give me a few days to get back to
> > this, I need to dig into how you all are dealing with the virtual
> > drivers.
>
> Sure, no problem.
>
> > Doing this in the middle of the merge window is a bit rough :)
>
> Ah I always forget ... we freeze drm at -rc6, so merge window is
> actually my most relaxed time since everyone is busy and no one has
> time to report drm bugs :-)
Hi Greg,
Since -rc3 is out, had any to ponder this? Otherwise we'll be right back
in the next merge window ...
Cheers, Daniel
--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 01/44] drivers/base: Always release devres on device_del
2020-04-28 13:15 ` [Intel-gfx] " Daniel Vetter
@ 2020-05-15 12:55 ` Greg Kroah-Hartman
-1 siblings, 0 replies; 262+ messages in thread
From: Greg Kroah-Hartman @ 2020-05-15 12:55 UTC (permalink / raw)
To: Daniel Vetter
Cc: Daniel Vetter, Intel Graphics Development, DRI Development,
Rafael J. Wysocki
On Tue, Apr 28, 2020 at 03:15:12PM +0200, Daniel Vetter wrote:
> On Mon, Apr 06, 2020 at 03:55:28PM +0200, Daniel Vetter wrote:
> > On Mon, Apr 6, 2020 at 3:38 PM Greg Kroah-Hartman
> > <gregkh@linuxfoundation.org> wrote:
> > >
> > > On Mon, Apr 06, 2020 at 02:32:51PM +0200, Daniel Vetter wrote:
> > > > On Fri, Apr 3, 2020 at 3:58 PM Daniel Vetter <daniel.vetter@ffwll.ch> wrote:
> > > > >
> > > > > In drm we've added nice drm_device (the main gpu driver thing, which
> > > > > also represents the userspace interfaces and has everything else
> > > > > dangling off it) init functions using devres, devm_drm_dev_init and
> > > > > soon devm_drm_dev_alloc (this patch series adds that).
> > > > >
> > > > > A slight trouble is that drm_device itself holds a reference on the
> > > > > struct device it's sitting on top (for sysfs links and dmesg debug and
> > > > > lots of other things), so there's a reference loop. For real drivers
> > > > > this is broken at remove/unplug time, where all devres resources are
> > > > > released device_release_driver(), before the final device reference is
> > > > > dropped. So far so good.
> > > > >
> > > > > There's 2 exceptions:
> > > > > - drm/vkms|vgem: Virtual drivers for which we create a fake/virtual
> > > > > platform device to make them look more like normal devices to
> > > > > userspace. These aren't drivers in the driver model sense, we simple
> > > > > create a platform_device and register it.
> > > > >
> > > > > - drm/i915/selftests, where we create minimal mock devices, and again
> > > > > the selftests aren't proper drivers in the driver model sense.
> > > > >
> > > > > For these two cases the reference loop isn't broken, because devres is
> > > > > only cleaned up when the last device reference is dropped. But that's
> > > > > not happening, because the drm_device holds that last struct device
> > > > > reference.
> > > > >
> > > > > Thus far this wasn't a problem since the above cases simply
> > > > > hand-rolled their cleanup code. But I want to convert all drivers over
> > > > > to the devm_ versions, hence it would be really nice if these
> > > > > virtual/fake/mock uses-cases could also be managed with devres
> > > > > cleanup.
> > > > >
> > > > > I see three possible approaches:
> > > >
> > > > Restarting this at the top level, because the discussion thus far just
> > > > ended in a long "you're doing it wrong", despite that I think we're
> > > > doing what v4l is doing (plus/minus that we can't do an exact matching
> > > > handling in drm because our uapi has a lot more warts, which we can't
> > > > change because no breaking userspace).
> > > >
> > > > So which one of the three below is the right approach?
> > > >
> > > > Aside, looking at the v4l solution I think there's also a confusion
> > > > about struct device representing a char device (which v4l directly
> > > > uses as its userspace interface refcounted thing, and which drm does
> > > > _not_ directly). And a struct device embedded into something like
> > > > platform_device or a virtual device, where a driver can bind to. My
> > > > question here is about the former, I don't care how cdev struct device
> > > > are cleaned up one bit. Now if other subsystems relies on the devres
> > > > cleanup behaviour we currently have because of such cdev usage, then
> > > > yeah first approach doesn't work (and I have a big surprised that use
> > > > case, but hey would actually learn something).
> > > >
> > > > End of aside, since again I want to figure out which of the tree
> > > > approaches it the right one. Not about how wrong one of them is,
> > > > ignoring the other three I laid out. And maybe there's even more
> > > > options for this.
> > >
> > > Sorry, been swamped with other things, give me a few days to get back to
> > > this, I need to dig into how you all are dealing with the virtual
> > > drivers.
> >
> > Sure, no problem.
> >
> > > Doing this in the middle of the merge window is a bit rough :)
> >
> > Ah I always forget ... we freeze drm at -rc6, so merge window is
> > actually my most relaxed time since everyone is busy and no one has
> > time to report drm bugs :-)
>
> Hi Greg,
>
> Since -rc3 is out, had any to ponder this? Otherwise we'll be right back
> in the next merge window ...
I owe you a response to this. I'm going to try to carve out some time
on Monday to do this, sorry for the delay :(
greg k-h
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [Intel-gfx] [PATCH 01/44] drivers/base: Always release devres on device_del
@ 2020-05-15 12:55 ` Greg Kroah-Hartman
0 siblings, 0 replies; 262+ messages in thread
From: Greg Kroah-Hartman @ 2020-05-15 12:55 UTC (permalink / raw)
To: Daniel Vetter
Cc: Daniel Vetter, Intel Graphics Development, DRI Development,
Rafael J. Wysocki
On Tue, Apr 28, 2020 at 03:15:12PM +0200, Daniel Vetter wrote:
> On Mon, Apr 06, 2020 at 03:55:28PM +0200, Daniel Vetter wrote:
> > On Mon, Apr 6, 2020 at 3:38 PM Greg Kroah-Hartman
> > <gregkh@linuxfoundation.org> wrote:
> > >
> > > On Mon, Apr 06, 2020 at 02:32:51PM +0200, Daniel Vetter wrote:
> > > > On Fri, Apr 3, 2020 at 3:58 PM Daniel Vetter <daniel.vetter@ffwll.ch> wrote:
> > > > >
> > > > > In drm we've added nice drm_device (the main gpu driver thing, which
> > > > > also represents the userspace interfaces and has everything else
> > > > > dangling off it) init functions using devres, devm_drm_dev_init and
> > > > > soon devm_drm_dev_alloc (this patch series adds that).
> > > > >
> > > > > A slight trouble is that drm_device itself holds a reference on the
> > > > > struct device it's sitting on top (for sysfs links and dmesg debug and
> > > > > lots of other things), so there's a reference loop. For real drivers
> > > > > this is broken at remove/unplug time, where all devres resources are
> > > > > released device_release_driver(), before the final device reference is
> > > > > dropped. So far so good.
> > > > >
> > > > > There's 2 exceptions:
> > > > > - drm/vkms|vgem: Virtual drivers for which we create a fake/virtual
> > > > > platform device to make them look more like normal devices to
> > > > > userspace. These aren't drivers in the driver model sense, we simple
> > > > > create a platform_device and register it.
> > > > >
> > > > > - drm/i915/selftests, where we create minimal mock devices, and again
> > > > > the selftests aren't proper drivers in the driver model sense.
> > > > >
> > > > > For these two cases the reference loop isn't broken, because devres is
> > > > > only cleaned up when the last device reference is dropped. But that's
> > > > > not happening, because the drm_device holds that last struct device
> > > > > reference.
> > > > >
> > > > > Thus far this wasn't a problem since the above cases simply
> > > > > hand-rolled their cleanup code. But I want to convert all drivers over
> > > > > to the devm_ versions, hence it would be really nice if these
> > > > > virtual/fake/mock uses-cases could also be managed with devres
> > > > > cleanup.
> > > > >
> > > > > I see three possible approaches:
> > > >
> > > > Restarting this at the top level, because the discussion thus far just
> > > > ended in a long "you're doing it wrong", despite that I think we're
> > > > doing what v4l is doing (plus/minus that we can't do an exact matching
> > > > handling in drm because our uapi has a lot more warts, which we can't
> > > > change because no breaking userspace).
> > > >
> > > > So which one of the three below is the right approach?
> > > >
> > > > Aside, looking at the v4l solution I think there's also a confusion
> > > > about struct device representing a char device (which v4l directly
> > > > uses as its userspace interface refcounted thing, and which drm does
> > > > _not_ directly). And a struct device embedded into something like
> > > > platform_device or a virtual device, where a driver can bind to. My
> > > > question here is about the former, I don't care how cdev struct device
> > > > are cleaned up one bit. Now if other subsystems relies on the devres
> > > > cleanup behaviour we currently have because of such cdev usage, then
> > > > yeah first approach doesn't work (and I have a big surprised that use
> > > > case, but hey would actually learn something).
> > > >
> > > > End of aside, since again I want to figure out which of the tree
> > > > approaches it the right one. Not about how wrong one of them is,
> > > > ignoring the other three I laid out. And maybe there's even more
> > > > options for this.
> > >
> > > Sorry, been swamped with other things, give me a few days to get back to
> > > this, I need to dig into how you all are dealing with the virtual
> > > drivers.
> >
> > Sure, no problem.
> >
> > > Doing this in the middle of the merge window is a bit rough :)
> >
> > Ah I always forget ... we freeze drm at -rc6, so merge window is
> > actually my most relaxed time since everyone is busy and no one has
> > time to report drm bugs :-)
>
> Hi Greg,
>
> Since -rc3 is out, had any to ponder this? Otherwise we'll be right back
> in the next merge window ...
I owe you a response to this. I'm going to try to carve out some time
on Monday to do this, sorry for the delay :(
greg k-h
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [PATCH 01/44] drivers/base: Always release devres on device_del
2020-05-15 12:55 ` [Intel-gfx] " Greg Kroah-Hartman
@ 2020-05-15 14:05 ` Daniel Vetter
-1 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-05-15 14:05 UTC (permalink / raw)
To: Greg Kroah-Hartman
Cc: Daniel Vetter, Intel Graphics Development, DRI Development,
Rafael J. Wysocki
On Fri, May 15, 2020 at 02:55:38PM +0200, Greg Kroah-Hartman wrote:
> On Tue, Apr 28, 2020 at 03:15:12PM +0200, Daniel Vetter wrote:
> > On Mon, Apr 06, 2020 at 03:55:28PM +0200, Daniel Vetter wrote:
> > > On Mon, Apr 6, 2020 at 3:38 PM Greg Kroah-Hartman
> > > <gregkh@linuxfoundation.org> wrote:
> > > >
> > > > On Mon, Apr 06, 2020 at 02:32:51PM +0200, Daniel Vetter wrote:
> > > > > On Fri, Apr 3, 2020 at 3:58 PM Daniel Vetter <daniel.vetter@ffwll.ch> wrote:
> > > > > >
> > > > > > In drm we've added nice drm_device (the main gpu driver thing, which
> > > > > > also represents the userspace interfaces and has everything else
> > > > > > dangling off it) init functions using devres, devm_drm_dev_init and
> > > > > > soon devm_drm_dev_alloc (this patch series adds that).
> > > > > >
> > > > > > A slight trouble is that drm_device itself holds a reference on the
> > > > > > struct device it's sitting on top (for sysfs links and dmesg debug and
> > > > > > lots of other things), so there's a reference loop. For real drivers
> > > > > > this is broken at remove/unplug time, where all devres resources are
> > > > > > released device_release_driver(), before the final device reference is
> > > > > > dropped. So far so good.
> > > > > >
> > > > > > There's 2 exceptions:
> > > > > > - drm/vkms|vgem: Virtual drivers for which we create a fake/virtual
> > > > > > platform device to make them look more like normal devices to
> > > > > > userspace. These aren't drivers in the driver model sense, we simple
> > > > > > create a platform_device and register it.
> > > > > >
> > > > > > - drm/i915/selftests, where we create minimal mock devices, and again
> > > > > > the selftests aren't proper drivers in the driver model sense.
> > > > > >
> > > > > > For these two cases the reference loop isn't broken, because devres is
> > > > > > only cleaned up when the last device reference is dropped. But that's
> > > > > > not happening, because the drm_device holds that last struct device
> > > > > > reference.
> > > > > >
> > > > > > Thus far this wasn't a problem since the above cases simply
> > > > > > hand-rolled their cleanup code. But I want to convert all drivers over
> > > > > > to the devm_ versions, hence it would be really nice if these
> > > > > > virtual/fake/mock uses-cases could also be managed with devres
> > > > > > cleanup.
> > > > > >
> > > > > > I see three possible approaches:
> > > > >
> > > > > Restarting this at the top level, because the discussion thus far just
> > > > > ended in a long "you're doing it wrong", despite that I think we're
> > > > > doing what v4l is doing (plus/minus that we can't do an exact matching
> > > > > handling in drm because our uapi has a lot more warts, which we can't
> > > > > change because no breaking userspace).
> > > > >
> > > > > So which one of the three below is the right approach?
> > > > >
> > > > > Aside, looking at the v4l solution I think there's also a confusion
> > > > > about struct device representing a char device (which v4l directly
> > > > > uses as its userspace interface refcounted thing, and which drm does
> > > > > _not_ directly). And a struct device embedded into something like
> > > > > platform_device or a virtual device, where a driver can bind to. My
> > > > > question here is about the former, I don't care how cdev struct device
> > > > > are cleaned up one bit. Now if other subsystems relies on the devres
> > > > > cleanup behaviour we currently have because of such cdev usage, then
> > > > > yeah first approach doesn't work (and I have a big surprised that use
> > > > > case, but hey would actually learn something).
> > > > >
> > > > > End of aside, since again I want to figure out which of the tree
> > > > > approaches it the right one. Not about how wrong one of them is,
> > > > > ignoring the other three I laid out. And maybe there's even more
> > > > > options for this.
> > > >
> > > > Sorry, been swamped with other things, give me a few days to get back to
> > > > this, I need to dig into how you all are dealing with the virtual
> > > > drivers.
> > >
> > > Sure, no problem.
> > >
> > > > Doing this in the middle of the merge window is a bit rough :)
> > >
> > > Ah I always forget ... we freeze drm at -rc6, so merge window is
> > > actually my most relaxed time since everyone is busy and no one has
> > > time to report drm bugs :-)
> >
> > Hi Greg,
> >
> > Since -rc3 is out, had any to ponder this? Otherwise we'll be right back
> > in the next merge window ...
>
> I owe you a response to this. I'm going to try to carve out some time
> on Monday to do this, sorry for the delay :(
No worries, I got myself plenty occupied with other fun stuff in graphics
for now. And the part of the series which doesn't need this here is all
landed, so new drivers already look a notch cleaner in their code.
I'd have poked you earlier, but ofc very much appreciated if you can look
into this a bit before the next merge window.
Thanks, Daniel
--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 262+ messages in thread
* Re: [Intel-gfx] [PATCH 01/44] drivers/base: Always release devres on device_del
@ 2020-05-15 14:05 ` Daniel Vetter
0 siblings, 0 replies; 262+ messages in thread
From: Daniel Vetter @ 2020-05-15 14:05 UTC (permalink / raw)
To: Greg Kroah-Hartman
Cc: Daniel Vetter, Intel Graphics Development, DRI Development,
Rafael J. Wysocki
On Fri, May 15, 2020 at 02:55:38PM +0200, Greg Kroah-Hartman wrote:
> On Tue, Apr 28, 2020 at 03:15:12PM +0200, Daniel Vetter wrote:
> > On Mon, Apr 06, 2020 at 03:55:28PM +0200, Daniel Vetter wrote:
> > > On Mon, Apr 6, 2020 at 3:38 PM Greg Kroah-Hartman
> > > <gregkh@linuxfoundation.org> wrote:
> > > >
> > > > On Mon, Apr 06, 2020 at 02:32:51PM +0200, Daniel Vetter wrote:
> > > > > On Fri, Apr 3, 2020 at 3:58 PM Daniel Vetter <daniel.vetter@ffwll.ch> wrote:
> > > > > >
> > > > > > In drm we've added nice drm_device (the main gpu driver thing, which
> > > > > > also represents the userspace interfaces and has everything else
> > > > > > dangling off it) init functions using devres, devm_drm_dev_init and
> > > > > > soon devm_drm_dev_alloc (this patch series adds that).
> > > > > >
> > > > > > A slight trouble is that drm_device itself holds a reference on the
> > > > > > struct device it's sitting on top (for sysfs links and dmesg debug and
> > > > > > lots of other things), so there's a reference loop. For real drivers
> > > > > > this is broken at remove/unplug time, where all devres resources are
> > > > > > released device_release_driver(), before the final device reference is
> > > > > > dropped. So far so good.
> > > > > >
> > > > > > There's 2 exceptions:
> > > > > > - drm/vkms|vgem: Virtual drivers for which we create a fake/virtual
> > > > > > platform device to make them look more like normal devices to
> > > > > > userspace. These aren't drivers in the driver model sense, we simple
> > > > > > create a platform_device and register it.
> > > > > >
> > > > > > - drm/i915/selftests, where we create minimal mock devices, and again
> > > > > > the selftests aren't proper drivers in the driver model sense.
> > > > > >
> > > > > > For these two cases the reference loop isn't broken, because devres is
> > > > > > only cleaned up when the last device reference is dropped. But that's
> > > > > > not happening, because the drm_device holds that last struct device
> > > > > > reference.
> > > > > >
> > > > > > Thus far this wasn't a problem since the above cases simply
> > > > > > hand-rolled their cleanup code. But I want to convert all drivers over
> > > > > > to the devm_ versions, hence it would be really nice if these
> > > > > > virtual/fake/mock uses-cases could also be managed with devres
> > > > > > cleanup.
> > > > > >
> > > > > > I see three possible approaches:
> > > > >
> > > > > Restarting this at the top level, because the discussion thus far just
> > > > > ended in a long "you're doing it wrong", despite that I think we're
> > > > > doing what v4l is doing (plus/minus that we can't do an exact matching
> > > > > handling in drm because our uapi has a lot more warts, which we can't
> > > > > change because no breaking userspace).
> > > > >
> > > > > So which one of the three below is the right approach?
> > > > >
> > > > > Aside, looking at the v4l solution I think there's also a confusion
> > > > > about struct device representing a char device (which v4l directly
> > > > > uses as its userspace interface refcounted thing, and which drm does
> > > > > _not_ directly). And a struct device embedded into something like
> > > > > platform_device or a virtual device, where a driver can bind to. My
> > > > > question here is about the former, I don't care how cdev struct device
> > > > > are cleaned up one bit. Now if other subsystems relies on the devres
> > > > > cleanup behaviour we currently have because of such cdev usage, then
> > > > > yeah first approach doesn't work (and I have a big surprised that use
> > > > > case, but hey would actually learn something).
> > > > >
> > > > > End of aside, since again I want to figure out which of the tree
> > > > > approaches it the right one. Not about how wrong one of them is,
> > > > > ignoring the other three I laid out. And maybe there's even more
> > > > > options for this.
> > > >
> > > > Sorry, been swamped with other things, give me a few days to get back to
> > > > this, I need to dig into how you all are dealing with the virtual
> > > > drivers.
> > >
> > > Sure, no problem.
> > >
> > > > Doing this in the middle of the merge window is a bit rough :)
> > >
> > > Ah I always forget ... we freeze drm at -rc6, so merge window is
> > > actually my most relaxed time since everyone is busy and no one has
> > > time to report drm bugs :-)
> >
> > Hi Greg,
> >
> > Since -rc3 is out, had any to ponder this? Otherwise we'll be right back
> > in the next merge window ...
>
> I owe you a response to this. I'm going to try to carve out some time
> on Monday to do this, sorry for the delay :(
No worries, I got myself plenty occupied with other fun stuff in graphics
for now. And the part of the series which doesn't need this here is all
landed, so new drivers already look a notch cleaner in their code.
I'd have poked you earlier, but ofc very much appreciated if you can look
into this a bit before the next merge window.
Thanks, Daniel
--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply [flat|nested] 262+ messages in thread
end of thread, other threads:[~2020-05-15 14:05 UTC | newest]
Thread overview: 262+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-04-03 13:57 [PATCH 00/44] devm_drm_dev_alloc, no more drmm_add_final_kfree Daniel Vetter
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
2020-04-03 13:57 ` [PATCH 01/44] drivers/base: Always release devres on device_del Daniel Vetter
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
2020-04-03 14:17 ` Greg Kroah-Hartman
2020-04-03 14:17 ` [Intel-gfx] " Greg Kroah-Hartman
2020-04-03 14:47 ` Daniel Vetter
2020-04-03 14:47 ` [Intel-gfx] " Daniel Vetter
2020-04-03 14:51 ` Daniel Vetter
2020-04-03 14:51 ` [Intel-gfx] " Daniel Vetter
2020-04-03 15:01 ` Greg Kroah-Hartman
2020-04-03 15:01 ` [Intel-gfx] " Greg Kroah-Hartman
2020-04-03 15:06 ` Greg Kroah-Hartman
2020-04-03 15:06 ` [Intel-gfx] " Greg Kroah-Hartman
2020-04-03 15:15 ` Daniel Vetter
2020-04-03 15:15 ` [Intel-gfx] " Daniel Vetter
2020-04-03 15:33 ` Daniel Vetter
2020-04-03 15:33 ` [Intel-gfx] " Daniel Vetter
2020-04-06 12:32 ` Daniel Vetter
2020-04-06 12:32 ` [Intel-gfx] " Daniel Vetter
2020-04-06 13:38 ` Greg Kroah-Hartman
2020-04-06 13:38 ` [Intel-gfx] " Greg Kroah-Hartman
2020-04-06 13:55 ` Daniel Vetter
2020-04-06 13:55 ` [Intel-gfx] " Daniel Vetter
2020-04-28 13:15 ` Daniel Vetter
2020-04-28 13:15 ` [Intel-gfx] " Daniel Vetter
2020-05-15 12:55 ` Greg Kroah-Hartman
2020-05-15 12:55 ` [Intel-gfx] " Greg Kroah-Hartman
2020-05-15 14:05 ` Daniel Vetter
2020-05-15 14:05 ` [Intel-gfx] " Daniel Vetter
2020-04-03 13:57 ` [PATCH 02/44] drm: Add devm_drm_dev_alloc macro Daniel Vetter
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
2020-04-05 10:20 ` Noralf Trønnes
2020-04-05 10:20 ` [Intel-gfx] " Noralf Trønnes
2020-04-06 12:00 ` Laurent Pinchart
2020-04-06 12:00 ` [Intel-gfx] " Laurent Pinchart
2020-04-06 12:18 ` Daniel Vetter
2020-04-06 12:18 ` [Intel-gfx] " Daniel Vetter
2020-04-08 6:57 ` Sam Ravnborg
2020-04-08 6:57 ` [Intel-gfx] " Sam Ravnborg
2020-04-08 12:11 ` Daniel Vetter
2020-04-08 12:11 ` [Intel-gfx] " Daniel Vetter
2020-04-08 18:55 ` Sam Ravnborg
2020-04-08 18:55 ` [Intel-gfx] " Sam Ravnborg
2020-04-03 13:57 ` [PATCH 03/44] drm/device: Deprecate dev_private harder Daniel Vetter
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
2020-04-08 7:02 ` Sam Ravnborg
2020-04-08 7:02 ` [Intel-gfx] " Sam Ravnborg
2020-04-14 16:43 ` Daniel Vetter
2020-04-14 16:43 ` [Intel-gfx] " Daniel Vetter
2020-04-03 13:57 ` [PATCH 04/44] drm/vgem: Use devm_drm_dev_alloc Daniel Vetter
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
2020-04-03 13:57 ` [PATCH 05/44] drm/vkms: " Daniel Vetter
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
2020-04-03 13:57 ` [PATCH 06/44] drm/vboxvideo: drop DRM_MTRR_WC #define Daniel Vetter
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
2020-04-08 7:03 ` Sam Ravnborg
2020-04-08 7:03 ` [Intel-gfx] " Sam Ravnborg
2020-04-03 13:57 ` [PATCH 07/44] drm/vboxvideo: Use devm_drm_dev_alloc Daniel Vetter
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
2020-04-03 13:57 ` [PATCH 08/44] drm/vboxvideo: Stop using drm_device->dev_private Daniel Vetter
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
2020-04-06 11:56 ` Thomas Zimmermann
2020-04-06 11:56 ` [Intel-gfx] " Thomas Zimmermann
2020-04-07 7:24 ` Daniel Vetter
2020-04-07 7:24 ` [Intel-gfx] " Daniel Vetter
2020-04-08 6:33 ` Thomas Zimmermann
2020-04-08 6:33 ` [Intel-gfx] " Thomas Zimmermann
2020-04-08 7:19 ` Sam Ravnborg
2020-04-08 7:19 ` [Intel-gfx] " Sam Ravnborg
2020-04-03 13:57 ` [PATCH 09/44] drm/vboxvidoe: use managed pci functions Daniel Vetter
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
2020-04-08 7:21 ` Sam Ravnborg
2020-04-08 7:21 ` [Intel-gfx] " Sam Ravnborg
2020-04-14 16:30 ` Daniel Vetter
2020-04-14 16:30 ` [Intel-gfx] " Daniel Vetter
2020-04-03 13:57 ` [PATCH 10/44] drm/vboxvideo: Use devm_gen_pool_create Daniel Vetter
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
2020-04-08 7:24 ` Sam Ravnborg
2020-04-08 7:24 ` [Intel-gfx] " Sam Ravnborg
2020-04-03 13:57 ` [PATCH 11/44] drm/v3d: Don't set drm_device->dev_private Daniel Vetter
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
2020-04-03 17:39 ` Eric Anholt
2020-04-03 17:39 ` [Intel-gfx] " Eric Anholt
2020-04-03 13:57 ` [PATCH 12/44] drm/v3d: Use devm_drm_dev_alloc Daniel Vetter
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
2020-04-03 17:38 ` Eric Anholt
2020-04-03 17:38 ` [Intel-gfx] " Eric Anholt
2020-04-03 13:57 ` [PATCH 13/44] drm/v3d: Delete v3d_dev->dev Daniel Vetter
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
2020-04-03 17:35 ` Eric Anholt
2020-04-03 17:35 ` [Intel-gfx] " Eric Anholt
2020-04-03 13:57 ` [PATCH 14/44] drm/v3d: Delete v3d_dev->pdev Daniel Vetter
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
2020-04-03 17:35 ` Eric Anholt
2020-04-03 17:35 ` [Intel-gfx] " Eric Anholt
2020-04-08 7:27 ` Sam Ravnborg
2020-04-08 7:27 ` [Intel-gfx] " Sam Ravnborg
2020-04-08 12:13 ` Daniel Vetter
2020-04-08 12:13 ` [Intel-gfx] " Daniel Vetter
2020-04-03 13:57 ` [PATCH 15/44] drm/udl: Use demv_drm_dev_alloc Daniel Vetter
2020-04-03 13:57 ` [Intel-gfx] " Daniel Vetter
2020-04-05 10:18 ` Noralf Trønnes
2020-04-05 10:18 ` [Intel-gfx] " Noralf Trønnes
2020-04-05 13:47 ` Daniel Vetter
2020-04-05 13:47 ` [Intel-gfx] " Daniel Vetter
2020-04-05 14:46 ` Noralf Trønnes
2020-04-05 14:46 ` [Intel-gfx] " Noralf Trønnes
2020-04-06 12:05 ` Thomas Zimmermann
2020-04-06 12:05 ` [Intel-gfx] " Thomas Zimmermann
2020-04-03 13:58 ` [PATCH 16/44] drm/udl: don't set drm_device->dev_private Daniel Vetter
2020-04-03 13:58 ` [Intel-gfx] " Daniel Vetter
2020-04-06 11:52 ` Thomas Zimmermann
2020-04-06 11:52 ` [Intel-gfx] " Thomas Zimmermann
2020-04-08 7:29 ` Sam Ravnborg
2020-04-08 7:29 ` [Intel-gfx] " Sam Ravnborg
2020-04-03 13:58 ` [PATCH 17/44] drm/st7735r: Use devm_drm_dev_alloc Daniel Vetter
2020-04-03 13:58 ` [Intel-gfx] " Daniel Vetter
2020-04-03 17:00 ` David Lechner
2020-04-03 17:00 ` [Intel-gfx] " David Lechner
2020-04-03 13:58 ` [PATCH 18/44] drm/st7586: " Daniel Vetter
2020-04-03 13:58 ` [Intel-gfx] " Daniel Vetter
2020-04-03 17:01 ` David Lechner
2020-04-03 17:01 ` [Intel-gfx] " David Lechner
2020-04-03 13:58 ` [PATCH 19/44] drm/repaper: " Daniel Vetter
2020-04-03 13:58 ` [Intel-gfx] " Daniel Vetter
2020-04-05 10:00 ` Noralf Trønnes
2020-04-05 10:00 ` [Intel-gfx] " Noralf Trønnes
2020-04-03 13:58 ` [PATCH 20/44] drm/mi0283qt: " Daniel Vetter
2020-04-03 13:58 ` [Intel-gfx] " Daniel Vetter
2020-04-05 10:01 ` Noralf Trønnes
2020-04-05 10:01 ` [Intel-gfx] " Noralf Trønnes
2020-04-03 13:58 ` [PATCH 21/44] drm/ili9486: " Daniel Vetter
2020-04-03 13:58 ` [Intel-gfx] " Daniel Vetter
2020-04-05 10:02 ` Noralf Trønnes
2020-04-05 10:02 ` [Intel-gfx] " Noralf Trønnes
2020-04-03 13:58 ` [PATCH 22/44] drm/ili9341: " Daniel Vetter
2020-04-03 13:58 ` [Intel-gfx] " Daniel Vetter
2020-04-03 17:02 ` David Lechner
2020-04-03 17:02 ` [Intel-gfx] " David Lechner
2020-04-03 13:58 ` [PATCH 23/44] drm/ili9225: " Daniel Vetter
2020-04-03 13:58 ` [Intel-gfx] " Daniel Vetter
2020-04-03 17:02 ` David Lechner
2020-04-03 17:02 ` [Intel-gfx] " David Lechner
2020-04-03 13:58 ` [PATCH 24/44] drm/hx8357d: " Daniel Vetter
2020-04-03 13:58 ` [Intel-gfx] " Daniel Vetter
2020-04-03 17:38 ` Eric Anholt
2020-04-03 17:38 ` [Intel-gfx] " Eric Anholt
2020-04-03 13:58 ` [PATCH 25/44] drm/gm12u320: " Daniel Vetter
2020-04-03 13:58 ` [Intel-gfx] " Daniel Vetter
2020-04-03 13:58 ` [PATCH 26/44] drm/gm12u320: Don't use drm_device->dev_private Daniel Vetter
2020-04-03 13:58 ` [Intel-gfx] " Daniel Vetter
2020-04-03 13:58 ` [PATCH 27/44] drm/tidss: Use devm_drm_dev_alloc Daniel Vetter
2020-04-03 13:58 ` [Intel-gfx] " Daniel Vetter
2020-04-08 7:52 ` Sam Ravnborg
2020-04-08 7:52 ` [Intel-gfx] " Sam Ravnborg
2020-04-14 9:55 ` Jyri Sarha
2020-04-14 9:55 ` [Intel-gfx] " Jyri Sarha
2020-04-03 13:58 ` [PATCH 28/44] drm/tidss: Don't use drm_device->dev_private Daniel Vetter
2020-04-03 13:58 ` [Intel-gfx] " Daniel Vetter
2020-04-08 7:52 ` Sam Ravnborg
2020-04-08 7:52 ` [Intel-gfx] " Sam Ravnborg
2020-04-14 9:55 ` Jyri Sarha
2020-04-14 9:55 ` [Intel-gfx] " Jyri Sarha
2020-04-03 13:58 ` [PATCH 29/44] drm/tidss: Delete tidss->saved_state Daniel Vetter
2020-04-03 13:58 ` [Intel-gfx] " Daniel Vetter
2020-04-08 7:53 ` Sam Ravnborg
2020-04-08 7:53 ` [Intel-gfx] " Sam Ravnborg
2020-04-14 9:55 ` Jyri Sarha
2020-04-14 9:55 ` [Intel-gfx] " Jyri Sarha
2020-04-03 13:58 ` [PATCH 30/44] drm/qxl: Use devm_drm_dev_alloc Daniel Vetter
2020-04-03 13:58 ` [Intel-gfx] " Daniel Vetter
2020-04-03 13:58 ` Daniel Vetter
2020-04-06 6:55 ` Gerd Hoffmann
2020-04-06 6:55 ` [Intel-gfx] " Gerd Hoffmann
2020-04-06 6:55 ` Gerd Hoffmann
2020-04-06 12:11 ` Thomas Zimmermann
2020-04-06 12:11 ` [Intel-gfx] " Thomas Zimmermann
2020-04-06 12:11 ` Thomas Zimmermann
2020-04-07 7:19 ` Daniel Vetter
2020-04-07 7:19 ` [Intel-gfx] " Daniel Vetter
2020-04-07 7:19 ` Daniel Vetter
2020-04-03 13:58 ` [PATCH 31/44] drm/qxl: Don't use drm_device->dev_private Daniel Vetter
2020-04-03 13:58 ` [Intel-gfx] " Daniel Vetter
2020-04-03 13:58 ` Daniel Vetter
2020-04-06 6:55 ` Gerd Hoffmann
2020-04-06 6:55 ` [Intel-gfx] " Gerd Hoffmann
2020-04-06 6:55 ` Gerd Hoffmann
2020-04-03 13:58 ` [PATCH 32/44] drm/mcde: Use devm_drm_dev_alloc Daniel Vetter
2020-04-03 13:58 ` [Intel-gfx] " Daniel Vetter
2020-04-08 7:57 ` Sam Ravnborg
2020-04-08 7:57 ` [Intel-gfx] " Sam Ravnborg
2020-04-03 13:58 ` [PATCH 33/44] drm/mcde: Don't use drm_device->dev_private Daniel Vetter
2020-04-03 13:58 ` [Intel-gfx] " Daniel Vetter
2020-04-08 7:58 ` Sam Ravnborg
2020-04-08 7:58 ` [Intel-gfx] " Sam Ravnborg
2020-04-12 0:44 ` Linus Walleij
2020-04-12 0:44 ` [Intel-gfx] " Linus Walleij
2020-04-03 13:58 ` [PATCH 34/44] drm/ingenic: Use devm_drm_dev_alloc Daniel Vetter
2020-04-03 13:58 ` [Intel-gfx] " Daniel Vetter
2020-04-08 7:59 ` Sam Ravnborg
2020-04-08 7:59 ` [Intel-gfx] " Sam Ravnborg
2020-04-03 13:58 ` [PATCH 35/44] drm/ingenic: Don't set drm_device->dev_private Daniel Vetter
2020-04-03 13:58 ` [Intel-gfx] " Daniel Vetter
2020-04-08 8:00 ` Sam Ravnborg
2020-04-08 8:00 ` [Intel-gfx] " Sam Ravnborg
2020-04-03 13:58 ` [PATCH 36/44] drm/komeda: use devm_drm_dev_alloc Daniel Vetter
2020-04-03 13:58 ` [Intel-gfx] " Daniel Vetter
2020-04-08 8:40 ` james qian wang (Arm Technology China)
2020-04-08 8:40 ` [Intel-gfx] " james qian wang (Arm Technology China)
2020-04-08 9:03 ` Daniel Vetter
2020-04-08 9:03 ` [Intel-gfx] " Daniel Vetter
2020-04-03 13:58 ` [PATCH 37/44] drm/armada: Use devm_drm_dev_alloc Daniel Vetter
2020-04-03 13:58 ` [Intel-gfx] " Daniel Vetter
2020-04-03 13:58 ` [PATCH 38/44] drm/armada: Don't use drm_device->dev_private Daniel Vetter
2020-04-03 13:58 ` [Intel-gfx] " Daniel Vetter
2020-04-03 13:58 ` [PATCH 39/44] drm/cirrus: Use devm_drm_dev_alloc Daniel Vetter
2020-04-03 13:58 ` [Intel-gfx] " Daniel Vetter
2020-04-03 13:58 ` Daniel Vetter
2020-04-05 10:04 ` Noralf Trønnes
2020-04-05 10:04 ` [Intel-gfx] " Noralf Trønnes
2020-04-05 10:04 ` Noralf Trønnes
2020-04-08 8:01 ` Sam Ravnborg
2020-04-08 8:01 ` [Intel-gfx] " Sam Ravnborg
2020-04-08 8:01 ` Sam Ravnborg
2020-04-03 13:58 ` [PATCH 40/44] drm/cirrus: Don't use drm_device->dev_private Daniel Vetter
2020-04-03 13:58 ` [Intel-gfx] " Daniel Vetter
2020-04-03 13:58 ` Daniel Vetter
2020-04-03 17:40 ` Eric Anholt
2020-04-03 17:40 ` [Intel-gfx] " Eric Anholt
2020-04-03 17:40 ` Eric Anholt
2020-04-06 11:58 ` Thomas Zimmermann
2020-04-06 11:58 ` [Intel-gfx] " Thomas Zimmermann
2020-04-06 11:58 ` Thomas Zimmermann
2020-04-08 8:04 ` Sam Ravnborg
2020-04-08 8:04 ` [Intel-gfx] " Sam Ravnborg
2020-04-08 8:04 ` Sam Ravnborg
2020-04-08 8:01 ` Sam Ravnborg
2020-04-08 8:01 ` [Intel-gfx] " Sam Ravnborg
2020-04-08 8:01 ` Sam Ravnborg
2020-04-03 13:58 ` [PATCH 41/44] drm/i915: Use devm_drm_dev_alloc Daniel Vetter
2020-04-03 13:58 ` [Intel-gfx] " Daniel Vetter
2020-04-03 13:58 ` [PATCH 42/44] drm/i915/selftest: Create mock_destroy_device Daniel Vetter
2020-04-03 13:58 ` [Intel-gfx] " Daniel Vetter
2020-04-03 22:31 ` [PATCH] " Daniel Vetter
2020-04-03 22:31 ` [Intel-gfx] " Daniel Vetter
2020-04-03 13:58 ` [PATCH 43/44] drm/i915/selftests: align more to real device lifetimes Daniel Vetter
2020-04-03 13:58 ` [Intel-gfx] " Daniel Vetter
2020-04-03 22:31 ` [PATCH] " Daniel Vetter
2020-04-03 22:31 ` [Intel-gfx] " Daniel Vetter
2020-04-03 13:58 ` [PATCH 44/44] drm/managed: Cleanup of unused functions and polishing docs Daniel Vetter
2020-04-03 13:58 ` [Intel-gfx] " Daniel Vetter
2020-04-05 10:29 ` Noralf Trønnes
2020-04-05 10:29 ` [Intel-gfx] " Noralf Trønnes
2020-04-03 14:15 ` [Intel-gfx] ✗ Fi.CI.BUILD: failure for devm_drm_dev_alloc, no more drmm_add_final_kfree Patchwork
2020-04-03 23:01 ` [Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for devm_drm_dev_alloc, no more drmm_add_final_kfree (rev3) Patchwork
2020-04-03 23:26 ` [Intel-gfx] ✓ Fi.CI.BAT: success " Patchwork
2020-04-04 10:39 ` [Intel-gfx] ✗ Fi.CI.IGT: failure " Patchwork
2020-04-08 8:08 ` [PATCH 00/44] devm_drm_dev_alloc, no more drmm_add_final_kfree Sam Ravnborg
2020-04-08 8:08 ` [Intel-gfx] " Sam Ravnborg
2020-04-08 12:15 ` Daniel Vetter
2020-04-08 12:15 ` [Intel-gfx] " Daniel Vetter
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