From: Thomas Zimmermann <tzimmermann@suse.de>
To: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Intel Graphics Development <intel-gfx@lists.freedesktop.org>,
DRI Development <dri-devel@lists.freedesktop.org>,
"open list:VIRTIO CORE,
NET..." <virtualization@lists.linux-foundation.org>,
Gerd Hoffmann <kraxel@redhat.com>,
Dave Airlie <airlied@redhat.com>,
Daniel Vetter <daniel.vetter@intel.com>
Subject: Re: [PATCH 37/59] drm/cirrus: Move to drm/tiny
Date: Wed, 15 Apr 2020 10:46:22 +0200 [thread overview]
Message-ID: <1d8288b5-883c-fcda-0108-b1fecc5637e6@suse.de> (raw)
In-Reply-To: <CAKMK7uHKqmUDMwsZ9OufZE-ZHqUHscmgiZ_HvRyr9TbH3UcYFQ@mail.gmail.com>
[-- Attachment #1.1.1: Type: text/plain, Size: 7571 bytes --]
Am 15.04.20 um 10:19 schrieb Daniel Vetter:
> On Wed, Apr 15, 2020 at 10:01 AM Thomas Zimmermann <tzimmermann@suse.de> wrote:
>>
>>
>>
>> Am 15.04.20 um 09:40 schrieb Daniel Vetter:
>>> Because it is. Huge congrats to everyone who made this kind of
>>> refactoring happen!
>>
>> Every other week, I felt an urge to send out this patch. Thank you so
>> much, Daniel! There are more candidates for tiny/. They are all <20k
>> LOCs and all we'd have to do is to move their code into a single file.
I meant <20k file size, not LOCs.
>> bochs or arc come into my mind.
>
> arc I have (later in the series), bochs I feel like is maybe a bit too
> big. I'd put the limit for tiny well below 1kloc including whitespace
> and all that. bochs might be a candidate once we've helperized a few
> more things perhaps.
True. The largest tiny driver is repaper with ~1.1k LOCS. Reading this
code, it seems like it has reached an upper bound of what is feasible.
Best regards
Thomas
>
> btw I drmm_ version of vram helpers would help a bunch of these drivers I think.
> -Daniel
>
>>
>>>
>>> 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
>>
>> Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
>>
>>> ---
>>> MAINTAINERS | 2 +-
>>> drivers/gpu/drm/Kconfig | 2 --
>>> drivers/gpu/drm/Makefile | 1 -
>>> drivers/gpu/drm/cirrus/Kconfig | 19 -------------------
>>> drivers/gpu/drm/cirrus/Makefile | 2 --
>>> drivers/gpu/drm/tiny/Kconfig | 19 +++++++++++++++++++
>>> drivers/gpu/drm/tiny/Makefile | 1 +
>>> drivers/gpu/drm/{cirrus => tiny}/cirrus.c | 0
>>> 8 files changed, 21 insertions(+), 25 deletions(-)
>>> delete mode 100644 drivers/gpu/drm/cirrus/Kconfig
>>> delete mode 100644 drivers/gpu/drm/cirrus/Makefile
>>> rename drivers/gpu/drm/{cirrus => tiny}/cirrus.c (100%)
>>>
>>> diff --git a/MAINTAINERS b/MAINTAINERS
>>> index 7b3255d96d1d..0a5cf105ee37 100644
>>> --- a/MAINTAINERS
>>> +++ b/MAINTAINERS
>>> @@ -5397,7 +5397,7 @@ L: virtualization@lists.linux-foundation.org
>>> S: Obsolete
>>> W: https://www.kraxel.org/blog/2014/10/qemu-using-cirrus-considered-harmful/
>>> T: git git://anongit.freedesktop.org/drm/drm-misc
>>> -F: drivers/gpu/drm/cirrus/
>>> +F: drivers/gpu/drm/tiny/cirrus.c
>>>
>>> DRM DRIVER FOR QXL VIRTUAL GPU
>>> M: Dave Airlie <airlied@redhat.com>
>>> diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig
>>> index 43594978958e..4f4e7fa001c1 100644
>>> --- a/drivers/gpu/drm/Kconfig
>>> +++ b/drivers/gpu/drm/Kconfig
>>> @@ -310,8 +310,6 @@ source "drivers/gpu/drm/ast/Kconfig"
>>>
>>> source "drivers/gpu/drm/mgag200/Kconfig"
>>>
>>> -source "drivers/gpu/drm/cirrus/Kconfig"
>>> -
>>> source "drivers/gpu/drm/armada/Kconfig"
>>>
>>> source "drivers/gpu/drm/atmel-hlcdc/Kconfig"
>>> diff --git a/drivers/gpu/drm/Makefile b/drivers/gpu/drm/Makefile
>>> index f34d08c83485..2c0e5a7e5953 100644
>>> --- a/drivers/gpu/drm/Makefile
>>> +++ b/drivers/gpu/drm/Makefile
>>> @@ -74,7 +74,6 @@ obj-$(CONFIG_DRM_I915) += i915/
>>> obj-$(CONFIG_DRM_MGAG200) += mgag200/
>>> obj-$(CONFIG_DRM_V3D) += v3d/
>>> obj-$(CONFIG_DRM_VC4) += vc4/
>>> -obj-$(CONFIG_DRM_CIRRUS_QEMU) += cirrus/
>>> obj-$(CONFIG_DRM_SIS) += sis/
>>> obj-$(CONFIG_DRM_SAVAGE)+= savage/
>>> obj-$(CONFIG_DRM_VMWGFX)+= vmwgfx/
>>> diff --git a/drivers/gpu/drm/cirrus/Kconfig b/drivers/gpu/drm/cirrus/Kconfig
>>> deleted file mode 100644
>>> index c6bbd988b0e5..000000000000
>>> --- a/drivers/gpu/drm/cirrus/Kconfig
>>> +++ /dev/null
>>> @@ -1,19 +0,0 @@
>>> -# SPDX-License-Identifier: GPL-2.0-only
>>> -config DRM_CIRRUS_QEMU
>>> - tristate "Cirrus driver for QEMU emulated device"
>>> - depends on DRM && PCI && MMU
>>> - select DRM_KMS_HELPER
>>> - select DRM_GEM_SHMEM_HELPER
>>> - help
>>> - This is a KMS driver for emulated cirrus device in qemu.
>>> - It is *NOT* intended for real cirrus devices. This requires
>>> - the modesetting userspace X.org driver.
>>> -
>>> - Cirrus is obsolete, the hardware was designed in the 90ies
>>> - and can't keep up with todays needs. More background:
>>> - https://www.kraxel.org/blog/2014/10/qemu-using-cirrus-considered-harmful/
>>> -
>>> - Better alternatives are:
>>> - - stdvga (DRM_BOCHS, qemu -vga std, default in qemu 2.2+)
>>> - - qxl (DRM_QXL, qemu -vga qxl, works best with spice)
>>> - - virtio (DRM_VIRTIO_GPU), qemu -vga virtio)
>>> diff --git a/drivers/gpu/drm/cirrus/Makefile b/drivers/gpu/drm/cirrus/Makefile
>>> deleted file mode 100644
>>> index 0c1ed3f99725..000000000000
>>> --- a/drivers/gpu/drm/cirrus/Makefile
>>> +++ /dev/null
>>> @@ -1,2 +0,0 @@
>>> -# SPDX-License-Identifier: GPL-2.0-only
>>> -obj-$(CONFIG_DRM_CIRRUS_QEMU) += cirrus.o
>>> diff --git a/drivers/gpu/drm/tiny/Kconfig b/drivers/gpu/drm/tiny/Kconfig
>>> index 4160e74e4751..2b6414f0fa75 100644
>>> --- a/drivers/gpu/drm/tiny/Kconfig
>>> +++ b/drivers/gpu/drm/tiny/Kconfig
>>> @@ -1,5 +1,24 @@
>>> # SPDX-License-Identifier: GPL-2.0-only
>>>
>>> +config DRM_CIRRUS_QEMU
>>> + tristate "Cirrus driver for QEMU emulated device"
>>> + depends on DRM && PCI && MMU
>>> + select DRM_KMS_HELPER
>>> + select DRM_GEM_SHMEM_HELPER
>>> + help
>>> + This is a KMS driver for emulated cirrus device in qemu.
>>> + It is *NOT* intended for real cirrus devices. This requires
>>> + the modesetting userspace X.org driver.
>>> +
>>> + Cirrus is obsolete, the hardware was designed in the 90ies
>>> + and can't keep up with todays needs. More background:
>>> + https://www.kraxel.org/blog/2014/10/qemu-using-cirrus-considered-harmful/
>>> +
>>> + Better alternatives are:
>>> + - stdvga (DRM_BOCHS, qemu -vga std, default in qemu 2.2+)
>>> + - qxl (DRM_QXL, qemu -vga qxl, works best with spice)
>>> + - virtio (DRM_VIRTIO_GPU), qemu -vga virtio)
>>> +
>>> config DRM_GM12U320
>>> tristate "GM12U320 driver for USB projectors"
>>> depends on DRM && USB
>>> diff --git a/drivers/gpu/drm/tiny/Makefile b/drivers/gpu/drm/tiny/Makefile
>>> index c96ceee71453..6ae4e9e5a35f 100644
>>> --- a/drivers/gpu/drm/tiny/Makefile
>>> +++ b/drivers/gpu/drm/tiny/Makefile
>>> @@ -1,5 +1,6 @@
>>> # SPDX-License-Identifier: GPL-2.0-only
>>>
>>> +obj-$(CONFIG_DRM_CIRRUS_QEMU) += cirrus.o
>>> obj-$(CONFIG_DRM_GM12U320) += gm12u320.o
>>> obj-$(CONFIG_TINYDRM_HX8357D) += hx8357d.o
>>> obj-$(CONFIG_TINYDRM_ILI9225) += ili9225.o
>>> diff --git a/drivers/gpu/drm/cirrus/cirrus.c b/drivers/gpu/drm/tiny/cirrus.c
>>> similarity index 100%
>>> rename from drivers/gpu/drm/cirrus/cirrus.c
>>> rename to drivers/gpu/drm/tiny/cirrus.c
>>>
>>
>> --
>> 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
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next prev parent reply other threads:[~2020-04-15 8:46 UTC|newest]
Thread overview: 142+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-15 7:39 [PATCH 00/59] devm_drm_dev_alloc, v2 Daniel Vetter
2020-04-15 7:39 ` [PATCH 01/59] drm: Add devm_drm_dev_alloc macro Daniel Vetter
2020-04-20 13:36 ` Thomas Zimmermann
2020-04-21 10:45 ` Daniel Vetter
2020-04-21 14:03 ` Thomas Zimmermann
2020-04-21 20:32 ` Sam Ravnborg
2020-04-28 13:06 ` Daniel Vetter
2020-04-15 7:39 ` [PATCH 02/59] drm/vboxvideo: drop DRM_MTRR_WC #define Daniel Vetter
2020-04-15 15:01 ` Hans de Goede
2020-04-15 7:39 ` [PATCH 03/59] drm/vboxvideo: Use devm_drm_dev_alloc Daniel Vetter
2020-04-15 15:02 ` Hans de Goede
2020-04-24 16:33 ` Sam Ravnborg
2020-04-15 7:39 ` [PATCH 04/59] drm/vboxvideo: Stop using drm_device->dev_private Daniel Vetter
2020-04-15 15:02 ` Hans de Goede
2020-04-15 7:39 ` [PATCH 05/59] drm/vboxvidoe: use managed pci functions Daniel Vetter
2020-04-15 15:03 ` Hans de Goede
2020-04-15 17:44 ` Daniel Vetter
2020-04-20 13:16 ` Hans de Goede
2020-04-15 17:32 ` Thomas Zimmermann
2020-04-15 7:39 ` [PATCH 06/59] drm/vboxvideo: Use devm_gen_pool_create Daniel Vetter
2020-04-15 15:04 ` Hans de Goede
2020-04-15 7:39 ` [PATCH 07/59] drm/v3d: Don't set drm_device->dev_private Daniel Vetter
2020-04-15 7:39 ` [PATCH 08/59] drm/v3d: Use devm_drm_dev_alloc Daniel Vetter
2020-04-15 7:39 ` [PATCH 09/59] drm/v3d: Delete v3d_dev->dev Daniel Vetter
2020-04-15 7:39 ` [PATCH 10/59] drm/v3d: Delete v3d_dev->pdev Daniel Vetter
2020-04-15 7:39 ` [PATCH 11/59] drm/udl: Use devm_drm_dev_alloc Daniel Vetter
2020-04-15 7:55 ` Thomas Zimmermann
2020-04-24 14:55 ` Sam Ravnborg
2020-04-28 13:18 ` Daniel Vetter
2020-04-15 7:39 ` [PATCH 12/59] drm/udl: don't set drm_device->dev_private Daniel Vetter
2020-04-15 7:39 ` [PATCH 13/59] drm/st7735r: Use devm_drm_dev_alloc Daniel Vetter
2020-04-15 7:39 ` [PATCH 14/59] drm/st7586: " Daniel Vetter
2020-04-15 7:39 ` [PATCH 15/59] drm/repaper: " Daniel Vetter
2020-04-15 7:39 ` [PATCH 16/59] drm/mi0283qt: " Daniel Vetter
2020-04-15 7:39 ` [PATCH 17/59] drm/ili9486: " Daniel Vetter
2020-04-15 7:39 ` [PATCH 18/59] drm/ili9341: " Daniel Vetter
2020-04-15 7:39 ` [PATCH 19/59] drm/ili9225: " Daniel Vetter
2020-04-15 7:39 ` [PATCH 20/59] drm/hx8357d: " Daniel Vetter
2020-04-15 7:39 ` [PATCH 21/59] drm/gm12u320: " Daniel Vetter
2020-04-15 15:04 ` Hans de Goede
2020-04-15 7:39 ` [PATCH 22/59] drm/gm12u320: Don't use drm_device->dev_private Daniel Vetter
2020-04-15 15:05 ` Hans de Goede
2020-04-15 7:39 ` [PATCH 23/59] drm/tidss: Use devm_drm_dev_alloc Daniel Vetter
2020-04-21 11:03 ` Tomi Valkeinen
2020-04-15 7:39 ` [PATCH 24/59] drm/tidss: Don't use drm_device->dev_private Daniel Vetter
2020-04-21 11:05 ` Tomi Valkeinen
2020-04-15 7:40 ` [PATCH 25/59] drm/tidss: Delete tidss->saved_state Daniel Vetter
2020-04-21 11:05 ` Tomi Valkeinen
2020-04-15 7:40 ` [PATCH 26/59] drm/qxl: Use devm_drm_dev_alloc Daniel Vetter
2020-04-24 15:09 ` Sam Ravnborg
2020-04-28 14:00 ` Daniel Vetter
2020-04-28 17:00 ` Sam Ravnborg
2020-04-28 18:04 ` Daniel Vetter
2020-04-15 7:40 ` [PATCH 27/59] drm/qxl: Don't use drm_device->dev_private Daniel Vetter
2020-04-24 15:12 ` Sam Ravnborg
2020-04-15 7:40 ` [PATCH 28/59] drm/mcde: Use devm_drm_dev_alloc Daniel Vetter
2020-04-15 12:20 ` Linus Walleij
2020-04-15 7:40 ` [PATCH 29/59] drm/mcde: Don't use drm_device->dev_private Daniel Vetter
2020-04-15 7:40 ` [PATCH 30/59] drm/ingenic: Use devm_drm_dev_alloc Daniel Vetter
2020-04-15 7:40 ` [PATCH 31/59] drm/ingenic: Don't set drm_device->dev_private Daniel Vetter
2020-04-15 7:40 ` [PATCH 32/59] drm/komeda: use devm_drm_dev_alloc Daniel Vetter
2020-04-15 7:40 ` [PATCH 33/59] drm/armada: Use devm_drm_dev_alloc Daniel Vetter
2020-04-15 7:40 ` [PATCH 34/59] drm/armada: Don't use drm_device->dev_private Daniel Vetter
2020-04-15 7:40 ` [PATCH 35/59] drm/cirrus: Use devm_drm_dev_alloc Daniel Vetter
2020-04-15 7:40 ` [PATCH 36/59] drm/cirrus: Don't use drm_device->dev_private Daniel Vetter
2020-04-15 7:40 ` [PATCH 37/59] drm/cirrus: Move to drm/tiny Daniel Vetter
2020-04-15 8:01 ` Thomas Zimmermann
2020-04-15 8:19 ` Daniel Vetter
2020-04-15 8:46 ` Thomas Zimmermann [this message]
2020-04-15 9:31 ` Daniel Vetter
2020-04-21 7:37 ` Gerd Hoffmann
2020-04-24 16:37 ` Sam Ravnborg
2020-04-15 7:40 ` [PATCH 38/59] drm/i915: Use devm_drm_dev_alloc Daniel Vetter
2020-04-28 18:52 ` Daniel Vetter
2020-04-15 7:40 ` [PATCH 39/59] drm/arcpgu: Switch to devm_drm_dev_alloc Daniel Vetter
2020-04-24 16:43 ` Sam Ravnborg
2020-04-15 7:40 ` [PATCH 40/59] drm/arcpgu: Stop using drm_device->dev_private Daniel Vetter
2020-04-24 16:46 ` Sam Ravnborg
2020-09-04 13:42 ` Daniel Vetter
2020-09-04 14:42 ` Sam Ravnborg
2020-04-15 7:40 ` [PATCH 41/59] drm/arcpgu: Delete arcpgu_priv->fb Daniel Vetter
2020-04-24 16:47 ` Sam Ravnborg
2020-04-15 7:40 ` [PATCH 42/59] drm/arc: Embedded a drm_simple_display_pipe Daniel Vetter
2020-04-24 17:34 ` Sam Ravnborg
2020-04-15 7:40 ` [PATCH 43/59] drm/arc: Embedd a drm_connector for sim case Daniel Vetter
2020-04-24 17:34 ` Sam Ravnborg
2020-04-15 7:40 ` [PATCH 44/59] drm/arc: Drop surplus connector registration Daniel Vetter
2020-04-24 16:51 ` Sam Ravnborg
2020-04-15 7:40 ` [PATCH 45/59] drm/arc: Use drmm_mode_config_cleanup Daniel Vetter
2020-04-24 17:36 ` Sam Ravnborg
2020-04-15 7:40 ` [PATCH 46/59] drm/arc: Align with simple pipe helpers Daniel Vetter
2020-04-25 12:24 ` Sam Ravnborg
2020-04-15 7:40 ` [PATCH 47/59] drm/arc: Convert to drm_simple_kms_pipe_helper Daniel Vetter
2020-04-24 17:40 ` Sam Ravnborg
2020-04-15 7:40 ` [PATCH 48/59] drm/arc: Drop fb/crtc check in arc_pgu_update Daniel Vetter
2020-04-24 17:45 ` Sam Ravnborg
2020-04-15 7:40 ` [PATCH 49/59] drm/arc: Inline arcpgu_crtc.c Daniel Vetter
2020-04-24 17:51 ` Sam Ravnborg
2020-04-15 7:40 ` [PATCH 50/59] drm/arc: Inline arcpgu_drm_hdmi_init Daniel Vetter
2020-04-24 17:54 ` Sam Ravnborg
2020-04-15 7:40 ` [PATCH 51/59] drm/arc: Inline remaining files Daniel Vetter
2020-04-24 17:56 ` Sam Ravnborg
2020-04-15 7:40 ` [PATCH 52/59] drm/arc: Initialize sim connector before display pipe Daniel Vetter
2020-04-24 17:58 ` Sam Ravnborg
2020-04-15 7:40 ` [PATCH 53/59] drm/arc: Move to drm/tiny Daniel Vetter
2020-04-15 8:04 ` Thomas Zimmermann
2020-04-15 8:22 ` Daniel Vetter
2020-04-15 9:45 ` Sam Ravnborg
2020-04-15 12:02 ` Alexey Brodkin
2020-04-15 12:20 ` Daniel Vetter
2020-04-28 14:08 ` Daniel Vetter
2020-05-08 13:56 ` Alexey Brodkin
2020-05-08 18:07 ` Daniel Vetter
2020-06-04 8:05 ` Daniel Vetter
2020-06-04 10:38 ` Eugeniy Paltsev
2020-06-04 11:19 ` Daniel Vetter
2020-06-04 19:00 ` Eugeniy Paltsev
2020-06-05 19:55 ` Daniel Vetter
2020-06-09 12:08 ` Eugeniy Paltsev
2020-06-09 13:02 ` Daniel Vetter
2020-07-17 9:04 ` Daniel Vetter
2020-04-15 7:40 ` [PATCH 54/59] drm/aspeed: Drop aspeed_gfx->fbdev Daniel Vetter
2020-04-24 18:00 ` Sam Ravnborg
2020-04-15 7:40 ` [PATCH 55/59] drm/aspeed: Use devm_drm_dev_alloc Daniel Vetter
2020-04-24 18:02 ` Sam Ravnborg
2020-04-15 7:40 ` [PATCH 56/59] drm/aspeed: Use managed drmm_mode_config_cleanup Daniel Vetter
2020-04-24 18:10 ` Sam Ravnborg
2020-04-28 14:12 ` Daniel Vetter
2020-04-28 17:03 ` Sam Ravnborg
2020-04-15 7:40 ` [PATCH 57/59] drm/ast: Use managed pci functions Daniel Vetter
2020-04-15 7:52 ` Thomas Zimmermann
2020-04-15 8:09 ` Daniel Vetter
2020-04-15 8:17 ` Daniel Vetter
2020-04-15 12:23 ` Daniel Vetter
2020-06-11 12:04 ` Thomas Zimmermann
2020-06-16 11:55 ` Daniel Vetter
2020-04-15 7:40 ` [PATCH 58/59] drm/ast: Drop explicit connector register/unregister Daniel Vetter
2020-04-15 7:53 ` Thomas Zimmermann
2020-04-24 18:11 ` Sam Ravnborg
2020-04-15 7:40 ` [PATCH 59/59] drm/bochs: Remove explicit drm_connector_register Daniel Vetter
2020-04-21 7:39 ` Gerd Hoffmann
2020-04-24 18:11 ` Sam Ravnborg
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