[PATCH 00/13] remove_conflicting_framebuffers() cleanup

[PATCH 00/13] remove_conflicting_framebuffers() cleanup

[Michał Mirosław]

This series cleans up duplicated code for replacing firmware FB
driver with proper DRI driver and adds handover support to
Tegra driver.

The last patch is here because it uses new semantics of
remove_conflicting_framebuffers() from this series. This
can be considered independently, though.

---

Michał Mirosław (13):
  fbdev: show fbdev number for debugging
  fbdev: add remove_conflicting_pci_framebuffers()
  drm/amdgpu: use simpler remove_conflicting_pci_framebuffers()
  drm/bochs: use simpler remove_conflicting_pci_framebuffers()
  drm/cirrus: use simpler remove_conflicting_pci_framebuffers()
  drm/mgag200: use simpler remove_conflicting_pci_framebuffers()
  drm/radeon: use simpler remove_conflicting_pci_framebuffers()
  drm/virtio: use simpler remove_conflicting_pci_framebuffers()
  staging: sm750fb: use simpler remove_conflicting_pci_framebuffers()
  fbdev: allow apertures == NULL in remove_conflicting_framebuffers()
  drm/vc4: use simpler remove_conflicting_framebuffers(NULL)
  drm/sun4i: use simpler remove_conflicting_framebuffers(NULL)
  drm/tegra: kick out simplefb

 drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c  | 23 +-----------------
 drivers/gpu/drm/bochs/bochs_drv.c        | 18 +-------------
 drivers/gpu/drm/cirrus/cirrus_drv.c      | 23 +-----------------
 drivers/gpu/drm/mgag200/mgag200_drv.c    | 21 +----------------
 drivers/gpu/drm/mgag200/mgag200_main.c   |  9 -------
 drivers/gpu/drm/radeon/radeon_drv.c      | 23 +-----------------
 drivers/gpu/drm/sun4i/sun4i_drv.c        | 18 +-------------
 drivers/gpu/drm/tegra/drm.c              |  4 ++++
 drivers/gpu/drm/vc4/vc4_drv.c            | 20 +---------------
 drivers/gpu/drm/virtio/virtgpu_drm_bus.c | 24 +++----------------
 drivers/staging/sm750fb/sm750.c          | 22 +-----------------
 drivers/video/fbdev/core/fbmem.c         | 40 ++++++++++++++++++++++++++++++--
 include/drm/drm_fb_helper.h              | 12 ++++++++++
 include/linux/fb.h                       |  2 ++
 14 files changed, 67 insertions(+), 192 deletions(-)

-- 
2.11.0

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[PATCH 02/13] fbdev: add remove_conflicting_pci_framebuffers()

[Michał Mirosław]

Almost all drivers using remove_conflicting_framebuffers() wrap it with
the same code. Extract common part from PCI drivers into separate
remove_conflicting_pci_framebuffers().

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
---
 drivers/video/fbdev/core/fbmem.c | 22 ++++++++++++++++++++++
 include/drm/drm_fb_helper.h      | 12 ++++++++++++
 include/linux/fb.h               |  2 ++
 3 files changed, 36 insertions(+)

diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c
index 30a18d4c9de4..5ea980e5d3b7 100644
--- a/drivers/video/fbdev/core/fbmem.c
+++ b/drivers/video/fbdev/core/fbmem.c
@@ -34,6 +34,7 @@
 #include <linux/fb.h>
 #include <linux/fbcon.h>
 #include <linux/mem_encrypt.h>
+#include <linux/pci.h>
 
 #include <asm/fb.h>
 
@@ -1788,6 +1789,27 @@ int remove_conflicting_framebuffers(struct apertures_struct *a,
 }
 EXPORT_SYMBOL(remove_conflicting_framebuffers);
 
+int remove_conflicting_pci_framebuffers(struct pci_dev *pdev, int res_id, const char *name)
+{
+	struct apertures_struct *ap;
+	bool primary = false;
+
+	ap = alloc_apertures(1);
+	if (!ap)
+		return -ENOMEM;
+
+	ap->ranges[0].base = pci_resource_start(pdev, res_id);
+	ap->ranges[0].size = pci_resource_len(pdev, res_id);
+#ifdef CONFIG_X86
+	primary = pdev->resource[PCI_ROM_RESOURCE].flags &
+					IORESOURCE_ROM_SHADOW;
+#endif
+	remove_conflicting_framebuffers(ap, name, primary);
+	kfree(ap);
+	return 0;
+}
+EXPORT_SYMBOL(remove_conflicting_pci_framebuffers);
+
 /**
  *	register_framebuffer - registers a frame buffer device
  *	@fb_info: frame buffer info structure
diff --git a/include/drm/drm_fb_helper.h b/include/drm/drm_fb_helper.h
index 33fe95927742..ac3412290289 100644
--- a/include/drm/drm_fb_helper.h
+++ b/include/drm/drm_fb_helper.h
@@ -520,4 +520,16 @@ drm_fb_helper_remove_conflicting_framebuffers(struct apertures_struct *a,
 #endif
 }
 
+static inline int
+drm_fb_helper_remove_conflicting_pci_framebuffers(struct pci_dev *pdev,
+						  int resource_id,
+						  const char *name)
+{
+#if IS_REACHABLE(CONFIG_FB)
+	return remove_conflicting_pci_framebuffers(pdev, resource_id, name);
+#else
+	return 0;
+#endif
+}
+
 #endif
diff --git a/include/linux/fb.h b/include/linux/fb.h
index f4386b0ccf40..4196cb09e58e 100644
--- a/include/linux/fb.h
+++ b/include/linux/fb.h
@@ -624,6 +624,8 @@ extern ssize_t fb_sys_write(struct fb_info *info, const char __user *buf,
 extern int register_framebuffer(struct fb_info *fb_info);
 extern int unregister_framebuffer(struct fb_info *fb_info);
 extern int unlink_framebuffer(struct fb_info *fb_info);
+extern int remove_conflicting_pci_framebuffers(struct pci_dev *pdev, int res_id,
+					       const char *name);
 extern int remove_conflicting_framebuffers(struct apertures_struct *a,
 					   const char *name, bool primary);
 extern int fb_prepare_logo(struct fb_info *fb_info, int rotate);
-- 
2.11.0

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[PATCH 03/13] drm/amdgpu: use simpler remove_conflicting_pci_framebuffers()

[Michał Mirosław]

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 23 +----------------------
 1 file changed, 1 insertion(+), 22 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
index dd2f060d62a8..b726222b7dd4 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
@@ -537,27 +537,6 @@ MODULE_DEVICE_TABLE(pci, pciidlist);
 
 static struct drm_driver kms_driver;
 
-static int amdgpu_kick_out_firmware_fb(struct pci_dev *pdev)
-{
-	struct apertures_struct *ap;
-	bool primary = false;
-
-	ap = alloc_apertures(1);
-	if (!ap)
-		return -ENOMEM;
-
-	ap->ranges[0].base = pci_resource_start(pdev, 0);
-	ap->ranges[0].size = pci_resource_len(pdev, 0);
-
-#ifdef CONFIG_X86
-	primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
-#endif
-	drm_fb_helper_remove_conflicting_framebuffers(ap, "amdgpudrmfb", primary);
-	kfree(ap);
-
-	return 0;
-}
-
 static int amdgpu_pci_probe(struct pci_dev *pdev,
 			    const struct pci_device_id *ent)
 {
@@ -580,7 +559,7 @@ static int amdgpu_pci_probe(struct pci_dev *pdev,
 		return ret;
 
 	/* Get rid of things like offb */
-	ret = amdgpu_kick_out_firmware_fb(pdev);
+	ret = drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, 0, "amdgpudrmfb");
 	if (ret)
 		return ret;
 
-- 
2.11.0

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[PATCH 01/13] fbdev: show fbdev number for debugging

[Michał Mirosław]

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
---
 drivers/video/fbdev/core/fbmem.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c
index f741ba8df01b..30a18d4c9de4 100644
--- a/drivers/video/fbdev/core/fbmem.c
+++ b/drivers/video/fbdev/core/fbmem.c
@@ -1618,8 +1618,8 @@ static int do_remove_conflicting_framebuffers(struct apertures_struct *a,
 			(primary && gen_aper && gen_aper->count &&
 			 gen_aper->ranges[0].base == VGA_FB_PHYS)) {
 
-			printk(KERN_INFO "fb: switching to %s from %s\n",
-			       name, registered_fb[i]->fix.id);
+			printk(KERN_INFO "fb%d: switching to %s from %s\n",
+			       i, name, registered_fb[i]->fix.id);
 			ret = do_unregister_framebuffer(registered_fb[i]);
 			if (ret)
 				return ret;
-- 
2.11.0

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[PATCH 05/13] drm/cirrus: use simpler remove_conflicting_pci_framebuffers()

[Michał Mirosław]

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
---
 drivers/gpu/drm/cirrus/cirrus_drv.c | 23 +----------------------
 1 file changed, 1 insertion(+), 22 deletions(-)

diff --git a/drivers/gpu/drm/cirrus/cirrus_drv.c b/drivers/gpu/drm/cirrus/cirrus_drv.c
index 69c4e352dd78..85ed8657c862 100644
--- a/drivers/gpu/drm/cirrus/cirrus_drv.c
+++ b/drivers/gpu/drm/cirrus/cirrus_drv.c
@@ -42,33 +42,12 @@ static const struct pci_device_id pciidlist[] = {
 };
 
 
-static int cirrus_kick_out_firmware_fb(struct pci_dev *pdev)
-{
-	struct apertures_struct *ap;
-	bool primary = false;
-
-	ap = alloc_apertures(1);
-	if (!ap)
-		return -ENOMEM;
-
-	ap->ranges[0].base = pci_resource_start(pdev, 0);
-	ap->ranges[0].size = pci_resource_len(pdev, 0);
-
-#ifdef CONFIG_X86
-	primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
-#endif
-	drm_fb_helper_remove_conflicting_framebuffers(ap, "cirrusdrmfb", primary);
-	kfree(ap);
-
-	return 0;
-}
-
 static int cirrus_pci_probe(struct pci_dev *pdev,
 			    const struct pci_device_id *ent)
 {
 	int ret;
 
-	ret = cirrus_kick_out_firmware_fb(pdev);
+	ret = drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, 0, "cirrusdrmfb");
 	if (ret)
 		return ret;
 
-- 
2.11.0

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[PATCH 04/13] drm/bochs: use simpler remove_conflicting_pci_framebuffers()

[Michał Mirosław]

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
---
 drivers/gpu/drm/bochs/bochs_drv.c | 18 +-----------------
 1 file changed, 1 insertion(+), 17 deletions(-)

diff --git a/drivers/gpu/drm/bochs/bochs_drv.c b/drivers/gpu/drm/bochs/bochs_drv.c
index 7b20318483e4..c61b40c72b62 100644
--- a/drivers/gpu/drm/bochs/bochs_drv.c
+++ b/drivers/gpu/drm/bochs/bochs_drv.c
@@ -143,22 +143,6 @@ static const struct dev_pm_ops bochs_pm_ops = {
 /* ---------------------------------------------------------------------- */
 /* pci interface                                                          */
 
-static int bochs_kick_out_firmware_fb(struct pci_dev *pdev)
-{
-	struct apertures_struct *ap;
-
-	ap = alloc_apertures(1);
-	if (!ap)
-		return -ENOMEM;
-
-	ap->ranges[0].base = pci_resource_start(pdev, 0);
-	ap->ranges[0].size = pci_resource_len(pdev, 0);
-	drm_fb_helper_remove_conflicting_framebuffers(ap, "bochsdrmfb", false);
-	kfree(ap);
-
-	return 0;
-}
-
 static int bochs_pci_probe(struct pci_dev *pdev,
 			   const struct pci_device_id *ent)
 {
@@ -171,7 +155,7 @@ static int bochs_pci_probe(struct pci_dev *pdev,
 		return -ENOMEM;
 	}
 
-	ret = bochs_kick_out_firmware_fb(pdev);
+	ret = drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, 0, "bochsdrmfb");
 	if (ret)
 		return ret;
 
-- 
2.11.0

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[PATCH 06/13] drm/mgag200: use simpler remove_conflicting_pci_framebuffers()

[Michał Mirosław]

Remove duplicated call, while at it.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
---
 drivers/gpu/drm/mgag200/mgag200_drv.c  | 21 +--------------------
 drivers/gpu/drm/mgag200/mgag200_main.c |  9 ---------
 2 files changed, 1 insertion(+), 29 deletions(-)

diff --git a/drivers/gpu/drm/mgag200/mgag200_drv.c b/drivers/gpu/drm/mgag200/mgag200_drv.c
index 74cdde2ee474..ac6af4bd9df6 100644
--- a/drivers/gpu/drm/mgag200/mgag200_drv.c
+++ b/drivers/gpu/drm/mgag200/mgag200_drv.c
@@ -42,29 +42,10 @@ static const struct pci_device_id pciidlist[] = {
 
 MODULE_DEVICE_TABLE(pci, pciidlist);
 
-static void mgag200_kick_out_firmware_fb(struct pci_dev *pdev)
-{
-	struct apertures_struct *ap;
-	bool primary = false;
-
-	ap = alloc_apertures(1);
-	if (!ap)
-		return;
-
-	ap->ranges[0].base = pci_resource_start(pdev, 0);
-	ap->ranges[0].size = pci_resource_len(pdev, 0);
-
-#ifdef CONFIG_X86
-	primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
-#endif
-	drm_fb_helper_remove_conflicting_framebuffers(ap, "mgag200drmfb", primary);
-	kfree(ap);
-}
-
 
 static int mga_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 {
-	mgag200_kick_out_firmware_fb(pdev);
+	drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, 0, "mgag200drmfb");
 
 	return drm_get_pci_dev(pdev, ent, &driver);
 }
diff --git a/drivers/gpu/drm/mgag200/mgag200_main.c b/drivers/gpu/drm/mgag200/mgag200_main.c
index 780f983b0294..79d54103d470 100644
--- a/drivers/gpu/drm/mgag200/mgag200_main.c
+++ b/drivers/gpu/drm/mgag200/mgag200_main.c
@@ -124,20 +124,11 @@ static int mga_probe_vram(struct mga_device *mdev, void __iomem *mem)
 static int mga_vram_init(struct mga_device *mdev)
 {
 	void __iomem *mem;
-	struct apertures_struct *aper = alloc_apertures(1);
-	if (!aper)
-		return -ENOMEM;
 
 	/* BAR 0 is VRAM */
 	mdev->mc.vram_base = pci_resource_start(mdev->dev->pdev, 0);
 	mdev->mc.vram_window = pci_resource_len(mdev->dev->pdev, 0);
 
-	aper->ranges[0].base = mdev->mc.vram_base;
-	aper->ranges[0].size = mdev->mc.vram_window;
-
-	drm_fb_helper_remove_conflicting_framebuffers(aper, "mgafb", true);
-	kfree(aper);
-
 	if (!devm_request_mem_region(mdev->dev->dev, mdev->mc.vram_base, mdev->mc.vram_window,
 				"mgadrmfb_vram")) {
 		DRM_ERROR("can't reserve VRAM\n");
-- 
2.11.0

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[PATCH 10/13] fbdev: allow apertures == NULL in remove_conflicting_framebuffers()

[Michał Mirosław]

Interpret (otherwise-invalid) NULL apertures argument to mean all-memory
range. This will allow to remove several duplicates of this code from
drivers in following patches.

Signed-off-by: Michał Mirosław <mirq-linux-CoA6ZxLDdyEEUmgCuDUIdw@public.gmane.org>
---
 drivers/video/fbdev/core/fbmem.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c
index 5ea980e5d3b7..927e016487e9 100644
--- a/drivers/video/fbdev/core/fbmem.c
+++ b/drivers/video/fbdev/core/fbmem.c
@@ -1780,11 +1780,25 @@ int remove_conflicting_framebuffers(struct apertures_struct *a,
 				    const char *name, bool primary)
 {
 	int ret;
+	bool do_free = false;
+
+	if (!a) {
+		a = alloc_apertures(1);
+		if (!a)
+			return -ENOMEM;
+
+		a->ranges[0].base = 0;
+		a->ranges[0].size = ~0;
+		do_free = true;
+	}
 
 	mutex_lock(&registration_lock);
 	ret = do_remove_conflicting_framebuffers(a, name, primary);
 	mutex_unlock(&registration_lock);
 
+	if (do_free)
+		kfree(a);
+
 	return ret;
 }
 EXPORT_SYMBOL(remove_conflicting_framebuffers);
-- 
2.11.0

[PATCH 08/13] drm/virtio: use simpler remove_conflicting_pci_framebuffers()

[Michał Mirosław]

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
---
 drivers/gpu/drm/virtio/virtgpu_drm_bus.c | 24 +++---------------------
 1 file changed, 3 insertions(+), 21 deletions(-)

diff --git a/drivers/gpu/drm/virtio/virtgpu_drm_bus.c b/drivers/gpu/drm/virtio/virtgpu_drm_bus.c
index 7df8d0c9026a..115ed546ca4e 100644
--- a/drivers/gpu/drm/virtio/virtgpu_drm_bus.c
+++ b/drivers/gpu/drm/virtio/virtgpu_drm_bus.c
@@ -28,26 +28,6 @@
 
 #include "virtgpu_drv.h"
 
-static void virtio_pci_kick_out_firmware_fb(struct pci_dev *pci_dev)
-{
-	struct apertures_struct *ap;
-	bool primary;
-
-	ap = alloc_apertures(1);
-	if (!ap)
-		return;
-
-	ap->ranges[0].base = pci_resource_start(pci_dev, 0);
-	ap->ranges[0].size = pci_resource_len(pci_dev, 0);
-
-	primary = pci_dev->resource[PCI_ROM_RESOURCE].flags
-		& IORESOURCE_ROM_SHADOW;
-
-	drm_fb_helper_remove_conflicting_framebuffers(ap, "virtiodrmfb", primary);
-
-	kfree(ap);
-}
-
 int drm_virtio_init(struct drm_driver *driver, struct virtio_device *vdev)
 {
 	struct drm_device *dev;
@@ -69,7 +49,9 @@ int drm_virtio_init(struct drm_driver *driver, struct virtio_device *vdev)
 			 pname);
 		dev->pdev = pdev;
 		if (vga)
-			virtio_pci_kick_out_firmware_fb(pdev);
+			drm_fb_helper_remove_conflicting_pci_framebuffers(pdev,
+									  0,
+									  "virtiodrmfb");
 
 		snprintf(unique, sizeof(unique), "pci:%s", pname);
 		ret = drm_dev_set_unique(dev, unique);
-- 
2.11.0

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[PATCH 07/13] drm/radeon: use simpler remove_conflicting_pci_framebuffers()

[Michał Mirosław]

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
---
 drivers/gpu/drm/radeon/radeon_drv.c | 23 +----------------------
 1 file changed, 1 insertion(+), 22 deletions(-)

diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c
index 31dd04f6baa1..49f51b17ae81 100644
--- a/drivers/gpu/drm/radeon/radeon_drv.c
+++ b/drivers/gpu/drm/radeon/radeon_drv.c
@@ -311,27 +311,6 @@ static struct drm_driver kms_driver;
 
 bool radeon_device_is_virtual(void);
 
-static int radeon_kick_out_firmware_fb(struct pci_dev *pdev)
-{
-	struct apertures_struct *ap;
-	bool primary = false;
-
-	ap = alloc_apertures(1);
-	if (!ap)
-		return -ENOMEM;
-
-	ap->ranges[0].base = pci_resource_start(pdev, 0);
-	ap->ranges[0].size = pci_resource_len(pdev, 0);
-
-#ifdef CONFIG_X86
-	primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
-#endif
-	drm_fb_helper_remove_conflicting_framebuffers(ap, "radeondrmfb", primary);
-	kfree(ap);
-
-	return 0;
-}
-
 static int radeon_pci_probe(struct pci_dev *pdev,
 			    const struct pci_device_id *ent)
 {
@@ -341,7 +320,7 @@ static int radeon_pci_probe(struct pci_dev *pdev,
 		return -EPROBE_DEFER;
 
 	/* Get rid of things like offb */
-	ret = radeon_kick_out_firmware_fb(pdev);
+	ret = drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, 0, "radeondrmfb");
 	if (ret)
 		return ret;
 
-- 
2.11.0

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[PATCH 09/13] staging: sm750fb: use simpler remove_conflicting_pci_framebuffers()

[Michał Mirosław]

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
---
 drivers/staging/sm750fb/sm750.c | 22 +---------------------
 1 file changed, 1 insertion(+), 21 deletions(-)

diff --git a/drivers/staging/sm750fb/sm750.c b/drivers/staging/sm750fb/sm750.c
index 67207b0554cd..0590fc45c493 100644
--- a/drivers/staging/sm750fb/sm750.c
+++ b/drivers/staging/sm750fb/sm750.c
@@ -1053,26 +1053,6 @@ static int sm750fb_frambuffer_alloc(struct sm750_dev *sm750_dev, int fbidx)
 	return err;
 }
 
-static int lynxfb_kick_out_firmware_fb(struct pci_dev *pdev)
-{
-	struct apertures_struct *ap;
-	bool primary = false;
-
-	ap = alloc_apertures(1);
-	if (!ap)
-		return -ENOMEM;
-
-	ap->ranges[0].base = pci_resource_start(pdev, 0);
-	ap->ranges[0].size = pci_resource_len(pdev, 0);
-#ifdef CONFIG_X86
-	primary = pdev->resource[PCI_ROM_RESOURCE].flags &
-					IORESOURCE_ROM_SHADOW;
-#endif
-	remove_conflicting_framebuffers(ap, "sm750_fb1", primary);
-	kfree(ap);
-	return 0;
-}
-
 static int lynxfb_pci_probe(struct pci_dev *pdev,
 			    const struct pci_device_id *ent)
 {
@@ -1081,7 +1061,7 @@ static int lynxfb_pci_probe(struct pci_dev *pdev,
 	int fbidx;
 	int err;
 
-	err = lynxfb_kick_out_firmware_fb(pdev);
+	err = remove_conflicting_pci_framebuffers(pdev, 0, "sm750_fb1");
 	if (err)
 		return err;
 
-- 
2.11.0

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[PATCH 13/13] drm/tegra: kick out simplefb

[Michał Mirosław]

Kick out firmware fb when loading tegra driver.

Signed-off-by: Michał Mirosław <mirq-linux-CoA6ZxLDdyEEUmgCuDUIdw@public.gmane.org>
---
 drivers/gpu/drm/tegra/drm.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/tegra/drm.c b/drivers/gpu/drm/tegra/drm.c
index 943bdf88c4a2..1ec66ae29839 100644
--- a/drivers/gpu/drm/tegra/drm.c
+++ b/drivers/gpu/drm/tegra/drm.c
@@ -1239,6 +1239,10 @@ static int host1x_drm_probe(struct host1x_device *dev)
 
 	dev_set_drvdata(&dev->dev, drm);
 
+	err = drm_fb_helper_remove_conflicting_framebuffers(NULL, "tegradrmfb", false);
+	if (err < 0)
+		goto unref;
+
 	err = drm_dev_register(drm, 0);
 	if (err < 0)
 		goto unref;
-- 
2.11.0

[PATCH 11/13] drm/vc4: use simpler remove_conflicting_framebuffers(NULL)

[Michał Mirosław]

Use remove_conflicting_framebuffers(NULL) instead of open-coding it.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
---
 drivers/gpu/drm/vc4/vc4_drv.c | 20 +-------------------
 1 file changed, 1 insertion(+), 19 deletions(-)

diff --git a/drivers/gpu/drm/vc4/vc4_drv.c b/drivers/gpu/drm/vc4/vc4_drv.c
index e3c29729da2e..b65cddb775bb 100644
--- a/drivers/gpu/drm/vc4/vc4_drv.c
+++ b/drivers/gpu/drm/vc4/vc4_drv.c
@@ -227,24 +227,6 @@ static void vc4_match_add_drivers(struct device *dev,
 	}
 }
 
-static void vc4_kick_out_firmware_fb(void)
-{
-	struct apertures_struct *ap;
-
-	ap = alloc_apertures(1);
-	if (!ap)
-		return;
-
-	/* Since VC4 is a UMA device, the simplefb node may have been
-	 * located anywhere in memory.
-	 */
-	ap->ranges[0].base = 0;
-	ap->ranges[0].size = ~0;
-
-	drm_fb_helper_remove_conflicting_framebuffers(ap, "vc4drmfb", false);
-	kfree(ap);
-}
-
 static int vc4_drm_bind(struct device *dev)
 {
 	struct platform_device *pdev = to_platform_device(dev);
@@ -277,7 +259,7 @@ static int vc4_drm_bind(struct device *dev)
 	if (ret)
 		goto gem_destroy;
 
-	vc4_kick_out_firmware_fb();
+	drm_fb_helper_remove_conflicting_framebuffers(NULL, "vc4drmfb", false);
 
 	ret = drm_dev_register(drm, 0);
 	if (ret < 0)
-- 
2.11.0

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[PATCH 12/13] drm/sun4i: use simpler remove_conflicting_framebuffers(NULL)

[Michał Mirosław]

Use remove_conflicting_framebuffers(NULL) instead of duplicating it.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
---
 drivers/gpu/drm/sun4i/sun4i_drv.c | 18 +-----------------
 1 file changed, 1 insertion(+), 17 deletions(-)

diff --git a/drivers/gpu/drm/sun4i/sun4i_drv.c b/drivers/gpu/drm/sun4i/sun4i_drv.c
index 75c76cdd82bc..febc591e9c17 100644
--- a/drivers/gpu/drm/sun4i/sun4i_drv.c
+++ b/drivers/gpu/drm/sun4i/sun4i_drv.c
@@ -66,22 +66,6 @@ static struct drm_driver sun4i_drv_driver = {
 	/* Frame Buffer Operations */
 };
 
-static void sun4i_remove_framebuffers(void)
-{
-	struct apertures_struct *ap;
-
-	ap = alloc_apertures(1);
-	if (!ap)
-		return;
-
-	/* The framebuffer can be located anywhere in RAM */
-	ap->ranges[0].base = 0;
-	ap->ranges[0].size = ~0;
-
-	drm_fb_helper_remove_conflicting_framebuffers(ap, "sun4i-drm-fb", false);
-	kfree(ap);
-}
-
 static int sun4i_drv_bind(struct device *dev)
 {
 	struct drm_device *drm;
@@ -123,7 +107,7 @@ static int sun4i_drv_bind(struct device *dev)
 	drm->irq_enabled = true;
 
 	/* Remove early framebuffers (ie. simplefb) */
-	sun4i_remove_framebuffers();
+	drm_fb_helper_remove_conflicting_framebuffers(NULL, "sun4i-drm-fb", false);
 
 	/* Create our framebuffer */
 	drv->fbdev = sun4i_framebuffer_init(drm);
-- 
2.11.0

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Re: [PATCH 13/13] drm/tegra: kick out simplefb

[Thierry Reding]

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On Fri, Nov 24, 2017 at 06:53:34PM +0100, Michał Mirosław wrote:
> Kick out firmware fb when loading tegra driver.
> 
> Signed-off-by: Michał Mirosław <mirq-linux-CoA6ZxLDdyEEUmgCuDUIdw@public.gmane.org>
> ---
>  drivers/gpu/drm/tegra/drm.c | 4 ++++
>  1 file changed, 4 insertions(+)

Cool. Can you provide some background on how you tested this? What is
your firmware FB? That'd be useful information to put in the commit
message. Also, nit: "tegra driver" -> "Tegra driver".

Thierry

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Re: [PATCH 13/13] drm/tegra: kick out simplefb

[Michał Mirosław]

On Fri, Nov 24, 2017 at 09:50:50PM +0100, Thierry Reding wrote:
> On Fri, Nov 24, 2017 at 06:53:34PM +0100, Michał Mirosław wrote:
> > Kick out firmware fb when loading tegra driver.
> Cool. Can you provide some background on how you tested this? What is
> your firmware FB? That'd be useful information to put in the commit
> message. Also, nit: "tegra driver" -> "Tegra driver".

I checked this on my Asus TF300T, as I use simplefb for initial
boot messages.  simplefb uses framebuffer set up by the bootloader.

Best Regards,
Michał Mirosław

Re: [PATCH 12/13] drm/sun4i: use simpler remove_conflicting_framebuffers(NULL)

[Maxime Ripard]

[-- Attachment #1.1: Type: text/plain, Size: 391 bytes --]

On Fri, Nov 24, 2017 at 06:53:34PM +0100, Michał Mirosław wrote:
> Use remove_conflicting_framebuffers(NULL) instead of duplicating it.
> 
> Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>

Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>

Thanks!
Maxime

-- 
Maxime Ripard, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com

[-- Attachment #1.2: signature.asc --]
[-- Type: application/pgp-signature, Size: 833 bytes --]

[-- Attachment #2: Type: text/plain, Size: 160 bytes --]

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Re: [PATCH 09/13] staging: sm750fb: use simpler remove_conflicting_pci_framebuffers()

[Daniel Vetter]

On Fri, Nov 24, 2017 at 06:53:33PM +0100, Michał Mirosław wrote:
> Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
> ---

Why exactly do we have an fbdev driver in staging? Afaiui fbdev is
entirely closed for new drivers (pls convert to an atomic drm driver
instead, it likely will be smaller even).

That's even worse than having a non-atomic drm driver in staging ...
-Daniel

>  drivers/staging/sm750fb/sm750.c | 22 +---------------------
>  1 file changed, 1 insertion(+), 21 deletions(-)
> 
> diff --git a/drivers/staging/sm750fb/sm750.c b/drivers/staging/sm750fb/sm750.c
> index 67207b0554cd..0590fc45c493 100644
> --- a/drivers/staging/sm750fb/sm750.c
> +++ b/drivers/staging/sm750fb/sm750.c
> @@ -1053,26 +1053,6 @@ static int sm750fb_frambuffer_alloc(struct sm750_dev *sm750_dev, int fbidx)
>  	return err;
>  }
>  
> -static int lynxfb_kick_out_firmware_fb(struct pci_dev *pdev)
> -{
> -	struct apertures_struct *ap;
> -	bool primary = false;
> -
> -	ap = alloc_apertures(1);
> -	if (!ap)
> -		return -ENOMEM;
> -
> -	ap->ranges[0].base = pci_resource_start(pdev, 0);
> -	ap->ranges[0].size = pci_resource_len(pdev, 0);
> -#ifdef CONFIG_X86
> -	primary = pdev->resource[PCI_ROM_RESOURCE].flags &
> -					IORESOURCE_ROM_SHADOW;
> -#endif
> -	remove_conflicting_framebuffers(ap, "sm750_fb1", primary);
> -	kfree(ap);
> -	return 0;
> -}
> -
>  static int lynxfb_pci_probe(struct pci_dev *pdev,
>  			    const struct pci_device_id *ent)
>  {
> @@ -1081,7 +1061,7 @@ static int lynxfb_pci_probe(struct pci_dev *pdev,
>  	int fbidx;
>  	int err;
>  
> -	err = lynxfb_kick_out_firmware_fb(pdev);
> +	err = remove_conflicting_pci_framebuffers(pdev, 0, "sm750_fb1");
>  	if (err)
>  		return err;
>  
> -- 
> 2.11.0
> 
> _______________________________________________
> 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
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Re: [PATCH 02/13] fbdev: add remove_conflicting_pci_framebuffers()

[Daniel Vetter]

On Fri, Nov 24, 2017 at 06:53:31PM +0100, Michał Mirosław wrote:
> Almost all drivers using remove_conflicting_framebuffers() wrap it with
> the same code. Extract common part from PCI drivers into separate
> remove_conflicting_pci_framebuffers().
> 
> Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>

Since the only driver that seems to use this is the staging one, which imo
is a DOA project, not sure it's worth to bother with this here.
-Daniel

> ---
>  drivers/video/fbdev/core/fbmem.c | 22 ++++++++++++++++++++++
>  include/drm/drm_fb_helper.h      | 12 ++++++++++++
>  include/linux/fb.h               |  2 ++
>  3 files changed, 36 insertions(+)
> 
> diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c
> index 30a18d4c9de4..5ea980e5d3b7 100644
> --- a/drivers/video/fbdev/core/fbmem.c
> +++ b/drivers/video/fbdev/core/fbmem.c
> @@ -34,6 +34,7 @@
>  #include <linux/fb.h>
>  #include <linux/fbcon.h>
>  #include <linux/mem_encrypt.h>
> +#include <linux/pci.h>
>  
>  #include <asm/fb.h>
>  
> @@ -1788,6 +1789,27 @@ int remove_conflicting_framebuffers(struct apertures_struct *a,
>  }
>  EXPORT_SYMBOL(remove_conflicting_framebuffers);
>  
> +int remove_conflicting_pci_framebuffers(struct pci_dev *pdev, int res_id, const char *name)
> +{
> +	struct apertures_struct *ap;
> +	bool primary = false;
> +
> +	ap = alloc_apertures(1);
> +	if (!ap)
> +		return -ENOMEM;
> +
> +	ap->ranges[0].base = pci_resource_start(pdev, res_id);
> +	ap->ranges[0].size = pci_resource_len(pdev, res_id);
> +#ifdef CONFIG_X86
> +	primary = pdev->resource[PCI_ROM_RESOURCE].flags &
> +					IORESOURCE_ROM_SHADOW;
> +#endif
> +	remove_conflicting_framebuffers(ap, name, primary);
> +	kfree(ap);
> +	return 0;
> +}
> +EXPORT_SYMBOL(remove_conflicting_pci_framebuffers);
> +
>  /**
>   *	register_framebuffer - registers a frame buffer device
>   *	@fb_info: frame buffer info structure
> diff --git a/include/drm/drm_fb_helper.h b/include/drm/drm_fb_helper.h
> index 33fe95927742..ac3412290289 100644
> --- a/include/drm/drm_fb_helper.h
> +++ b/include/drm/drm_fb_helper.h
> @@ -520,4 +520,16 @@ drm_fb_helper_remove_conflicting_framebuffers(struct apertures_struct *a,
>  #endif
>  }
>  
> +static inline int
> +drm_fb_helper_remove_conflicting_pci_framebuffers(struct pci_dev *pdev,
> +						  int resource_id,
> +						  const char *name)
> +{
> +#if IS_REACHABLE(CONFIG_FB)
> +	return remove_conflicting_pci_framebuffers(pdev, resource_id, name);
> +#else
> +	return 0;
> +#endif
> +}
> +
>  #endif
> diff --git a/include/linux/fb.h b/include/linux/fb.h
> index f4386b0ccf40..4196cb09e58e 100644
> --- a/include/linux/fb.h
> +++ b/include/linux/fb.h
> @@ -624,6 +624,8 @@ extern ssize_t fb_sys_write(struct fb_info *info, const char __user *buf,
>  extern int register_framebuffer(struct fb_info *fb_info);
>  extern int unregister_framebuffer(struct fb_info *fb_info);
>  extern int unlink_framebuffer(struct fb_info *fb_info);
> +extern int remove_conflicting_pci_framebuffers(struct pci_dev *pdev, int res_id,
> +					       const char *name);
>  extern int remove_conflicting_framebuffers(struct apertures_struct *a,
>  					   const char *name, bool primary);
>  extern int fb_prepare_logo(struct fb_info *fb_info, int rotate);
> -- 
> 2.11.0
> 
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel

-- 
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Software Engineer, Intel Corporation
http://blog.ffwll.ch
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Re: [PATCH 02/13] fbdev: add remove_conflicting_pci_framebuffers()

[Daniel Vetter]

On Fri, Nov 24, 2017 at 06:53:31PM +0100, Michał Mirosław wrote:
> Almost all drivers using remove_conflicting_framebuffers() wrap it with
> the same code. Extract common part from PCI drivers into separate
> remove_conflicting_pci_framebuffers().
> 
> Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>

Since the only driver that seems to use this is the staging one, which imo
is a DOA project, not sure it's worth to bother with this here.
-Daniel

> ---
>  drivers/video/fbdev/core/fbmem.c | 22 ++++++++++++++++++++++
>  include/drm/drm_fb_helper.h      | 12 ++++++++++++
>  include/linux/fb.h               |  2 ++
>  3 files changed, 36 insertions(+)
> 
> diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c
> index 30a18d4c9de4..5ea980e5d3b7 100644
> --- a/drivers/video/fbdev/core/fbmem.c
> +++ b/drivers/video/fbdev/core/fbmem.c
> @@ -34,6 +34,7 @@
>  #include <linux/fb.h>
>  #include <linux/fbcon.h>
>  #include <linux/mem_encrypt.h>
> +#include <linux/pci.h>
>  
>  #include <asm/fb.h>
>  
> @@ -1788,6 +1789,27 @@ int remove_conflicting_framebuffers(struct apertures_struct *a,
>  }
>  EXPORT_SYMBOL(remove_conflicting_framebuffers);
>  
> +int remove_conflicting_pci_framebuffers(struct pci_dev *pdev, int res_id, const char *name)
> +{
> +	struct apertures_struct *ap;
> +	bool primary = false;
> +
> +	ap = alloc_apertures(1);
> +	if (!ap)
> +		return -ENOMEM;
> +
> +	ap->ranges[0].base = pci_resource_start(pdev, res_id);
> +	ap->ranges[0].size = pci_resource_len(pdev, res_id);
> +#ifdef CONFIG_X86
> +	primary = pdev->resource[PCI_ROM_RESOURCE].flags &
> +					IORESOURCE_ROM_SHADOW;
> +#endif
> +	remove_conflicting_framebuffers(ap, name, primary);
> +	kfree(ap);
> +	return 0;
> +}
> +EXPORT_SYMBOL(remove_conflicting_pci_framebuffers);
> +
>  /**
>   *	register_framebuffer - registers a frame buffer device
>   *	@fb_info: frame buffer info structure
> diff --git a/include/drm/drm_fb_helper.h b/include/drm/drm_fb_helper.h
> index 33fe95927742..ac3412290289 100644
> --- a/include/drm/drm_fb_helper.h
> +++ b/include/drm/drm_fb_helper.h
> @@ -520,4 +520,16 @@ drm_fb_helper_remove_conflicting_framebuffers(struct apertures_struct *a,
>  #endif
>  }
>  
> +static inline int
> +drm_fb_helper_remove_conflicting_pci_framebuffers(struct pci_dev *pdev,
> +						  int resource_id,
> +						  const char *name)
> +{
> +#if IS_REACHABLE(CONFIG_FB)
> +	return remove_conflicting_pci_framebuffers(pdev, resource_id, name);
> +#else
> +	return 0;
> +#endif
> +}
> +
>  #endif
> diff --git a/include/linux/fb.h b/include/linux/fb.h
> index f4386b0ccf40..4196cb09e58e 100644
> --- a/include/linux/fb.h
> +++ b/include/linux/fb.h
> @@ -624,6 +624,8 @@ extern ssize_t fb_sys_write(struct fb_info *info, const char __user *buf,
>  extern int register_framebuffer(struct fb_info *fb_info);
>  extern int unregister_framebuffer(struct fb_info *fb_info);
>  extern int unlink_framebuffer(struct fb_info *fb_info);
> +extern int remove_conflicting_pci_framebuffers(struct pci_dev *pdev, int res_id,
> +					       const char *name);
>  extern int remove_conflicting_framebuffers(struct apertures_struct *a,
>  					   const char *name, bool primary);
>  extern int fb_prepare_logo(struct fb_info *fb_info, int rotate);
> -- 
> 2.11.0
> 
> _______________________________________________
> 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
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Re: [PATCH 10/13] fbdev: allow apertures == NULL in remove_conflicting_framebuffers()

[Daniel Vetter]

On Fri, Nov 24, 2017 at 06:53:33PM +0100, Michał Mirosław wrote:
> Interpret (otherwise-invalid) NULL apertures argument to mean all-memory
> range. This will allow to remove several duplicates of this code from
> drivers in following patches.
> 
> Signed-off-by: Michał Mirosław <mirq-linux-CoA6ZxLDdyEEUmgCuDUIdw@public.gmane.org>
> ---
>  drivers/video/fbdev/core/fbmem.c | 14 ++++++++++++++
>  1 file changed, 14 insertions(+)
> 
> diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c
> index 5ea980e5d3b7..927e016487e9 100644
> --- a/drivers/video/fbdev/core/fbmem.c
> +++ b/drivers/video/fbdev/core/fbmem.c
> @@ -1780,11 +1780,25 @@ int remove_conflicting_framebuffers(struct apertures_struct *a,
>  				    const char *name, bool primary)
>  {
>  	int ret;
> +	bool do_free = false;
> +
> +	if (!a) {
> +		a = alloc_apertures(1);
> +		if (!a)
> +			return -ENOMEM;
> +
> +		a->ranges[0].base = 0;
> +		a->ranges[0].size = ~0;
> +		do_free = true;
> +	}
>  
>  	mutex_lock(&registration_lock);
>  	ret = do_remove_conflicting_framebuffers(a, name, primary);
>  	mutex_unlock(&registration_lock);
>  
> +	if (do_free)
> +		kfree(a);
> +
>  	return ret;
>  }
>  EXPORT_SYMBOL(remove_conflicting_framebuffers);

Please also update the kerneldoc for the varios drm wrappers and explain
that passing NULL means to remove all fbdev drivers.
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch

Re: [PATCH 00/13] remove_conflicting_framebuffers() cleanup

[Daniel Vetter]

On Fri, Nov 24, 2017 at 06:53:25PM +0100, Michał Mirosław wrote:
> This series cleans up duplicated code for replacing firmware FB
> driver with proper DRI driver and adds handover support to
> Tegra driver.
> 
> The last patch is here because it uses new semantics of
> remove_conflicting_framebuffers() from this series. This
> can be considered independently, though.

Except for that patches I've commented on:

Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>

Since this is for tegra and Thierry has drm-misc commit rights, it's
probably simplest when Thierry pushes this all to drm-misc once driver
maintainers had a chance to look at it. Also needs and ack from Bart for
the fbdev sides.
-Daniel

> 
> ---
> 
> Michał Mirosław (13):
>   fbdev: show fbdev number for debugging
>   fbdev: add remove_conflicting_pci_framebuffers()
>   drm/amdgpu: use simpler remove_conflicting_pci_framebuffers()
>   drm/bochs: use simpler remove_conflicting_pci_framebuffers()
>   drm/cirrus: use simpler remove_conflicting_pci_framebuffers()
>   drm/mgag200: use simpler remove_conflicting_pci_framebuffers()
>   drm/radeon: use simpler remove_conflicting_pci_framebuffers()
>   drm/virtio: use simpler remove_conflicting_pci_framebuffers()
>   staging: sm750fb: use simpler remove_conflicting_pci_framebuffers()
>   fbdev: allow apertures == NULL in remove_conflicting_framebuffers()
>   drm/vc4: use simpler remove_conflicting_framebuffers(NULL)
>   drm/sun4i: use simpler remove_conflicting_framebuffers(NULL)
>   drm/tegra: kick out simplefb
> 
>  drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c  | 23 +-----------------
>  drivers/gpu/drm/bochs/bochs_drv.c        | 18 +-------------
>  drivers/gpu/drm/cirrus/cirrus_drv.c      | 23 +-----------------
>  drivers/gpu/drm/mgag200/mgag200_drv.c    | 21 +----------------
>  drivers/gpu/drm/mgag200/mgag200_main.c   |  9 -------
>  drivers/gpu/drm/radeon/radeon_drv.c      | 23 +-----------------
>  drivers/gpu/drm/sun4i/sun4i_drv.c        | 18 +-------------
>  drivers/gpu/drm/tegra/drm.c              |  4 ++++
>  drivers/gpu/drm/vc4/vc4_drv.c            | 20 +---------------
>  drivers/gpu/drm/virtio/virtgpu_drm_bus.c | 24 +++----------------
>  drivers/staging/sm750fb/sm750.c          | 22 +-----------------
>  drivers/video/fbdev/core/fbmem.c         | 40 ++++++++++++++++++++++++++++++--
>  include/drm/drm_fb_helper.h              | 12 ++++++++++
>  include/linux/fb.h                       |  2 ++
>  14 files changed, 67 insertions(+), 192 deletions(-)
> 
> -- 
> 2.11.0
> 
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> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel

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Re: [PATCH 00/13] remove_conflicting_framebuffers() cleanup

[Daniel Vetter]

On Fri, Nov 24, 2017 at 06:53:25PM +0100, Michał Mirosław wrote:
> This series cleans up duplicated code for replacing firmware FB
> driver with proper DRI driver and adds handover support to
> Tegra driver.
> 
> The last patch is here because it uses new semantics of
> remove_conflicting_framebuffers() from this series. This
> can be considered independently, though.

Except for that patches I've commented on:

Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>

Since this is for tegra and Thierry has drm-misc commit rights, it's
probably simplest when Thierry pushes this all to drm-misc once driver
maintainers had a chance to look at it. Also needs and ack from Bart for
the fbdev sides.
-Daniel

> 
> ---
> 
> Michał Mirosław (13):
>   fbdev: show fbdev number for debugging
>   fbdev: add remove_conflicting_pci_framebuffers()
>   drm/amdgpu: use simpler remove_conflicting_pci_framebuffers()
>   drm/bochs: use simpler remove_conflicting_pci_framebuffers()
>   drm/cirrus: use simpler remove_conflicting_pci_framebuffers()
>   drm/mgag200: use simpler remove_conflicting_pci_framebuffers()
>   drm/radeon: use simpler remove_conflicting_pci_framebuffers()
>   drm/virtio: use simpler remove_conflicting_pci_framebuffers()
>   staging: sm750fb: use simpler remove_conflicting_pci_framebuffers()
>   fbdev: allow apertures == NULL in remove_conflicting_framebuffers()
>   drm/vc4: use simpler remove_conflicting_framebuffers(NULL)
>   drm/sun4i: use simpler remove_conflicting_framebuffers(NULL)
>   drm/tegra: kick out simplefb
> 
>  drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c  | 23 +-----------------
>  drivers/gpu/drm/bochs/bochs_drv.c        | 18 +-------------
>  drivers/gpu/drm/cirrus/cirrus_drv.c      | 23 +-----------------
>  drivers/gpu/drm/mgag200/mgag200_drv.c    | 21 +----------------
>  drivers/gpu/drm/mgag200/mgag200_main.c   |  9 -------
>  drivers/gpu/drm/radeon/radeon_drv.c      | 23 +-----------------
>  drivers/gpu/drm/sun4i/sun4i_drv.c        | 18 +-------------
>  drivers/gpu/drm/tegra/drm.c              |  4 ++++
>  drivers/gpu/drm/vc4/vc4_drv.c            | 20 +---------------
>  drivers/gpu/drm/virtio/virtgpu_drm_bus.c | 24 +++----------------
>  drivers/staging/sm750fb/sm750.c          | 22 +-----------------
>  drivers/video/fbdev/core/fbmem.c         | 40 ++++++++++++++++++++++++++++++--
>  include/drm/drm_fb_helper.h              | 12 ++++++++++
>  include/linux/fb.h                       |  2 ++
>  14 files changed, 67 insertions(+), 192 deletions(-)
> 
> -- 
> 2.11.0
> 
> _______________________________________________
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> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel

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Re: [PATCH 00/13] remove_conflicting_framebuffers() cleanup

[Thierry Reding]

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On Mon, Nov 27, 2017 at 11:30:44AM +0100, Daniel Vetter wrote:
> On Fri, Nov 24, 2017 at 06:53:25PM +0100, Michał Mirosław wrote:
> > This series cleans up duplicated code for replacing firmware FB
> > driver with proper DRI driver and adds handover support to
> > Tegra driver.
> > 
> > The last patch is here because it uses new semantics of
> > remove_conflicting_framebuffers() from this series. This
> > can be considered independently, though.
> 
> Except for that patches I've commented on:
> 
> Acked-by: Daniel Vetter <daniel.vetter-/w4YWyX8dFk@public.gmane.org>
> 
> Since this is for tegra and Thierry has drm-misc commit rights, it's
> probably simplest when Thierry pushes this all to drm-misc once driver
> maintainers had a chance to look at it.

Will do.

Thierry

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Re: [PATCH 00/13] remove_conflicting_framebuffers() cleanup

[Thierry Reding]

[-- Attachment #1.1: Type: text/plain, Size: 783 bytes --]

On Mon, Nov 27, 2017 at 11:30:44AM +0100, Daniel Vetter wrote:
> On Fri, Nov 24, 2017 at 06:53:25PM +0100, Michał Mirosław wrote:
> > This series cleans up duplicated code for replacing firmware FB
> > driver with proper DRI driver and adds handover support to
> > Tegra driver.
> > 
> > The last patch is here because it uses new semantics of
> > remove_conflicting_framebuffers() from this series. This
> > can be considered independently, though.
> 
> Except for that patches I've commented on:
> 
> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
> 
> Since this is for tegra and Thierry has drm-misc commit rights, it's
> probably simplest when Thierry pushes this all to drm-misc once driver
> maintainers had a chance to look at it.

Will do.

Thierry

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Re: [PATCH 03/13] drm/amdgpu: use simpler remove_conflicting_pci_framebuffers()

[Alex Deucher]

On Fri, Nov 24, 2017 at 12:53 PM, Michał Mirosław
<mirq-linux@rere.qmqm.pl> wrote:
> Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>

radeon and amdgpu patches (3 and 7) are:
Acked-by: Alex Deucher <alexander.deucher@amd.com>

> ---
>  drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 23 +----------------------
>  1 file changed, 1 insertion(+), 22 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
> index dd2f060d62a8..b726222b7dd4 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
> @@ -537,27 +537,6 @@ MODULE_DEVICE_TABLE(pci, pciidlist);
>
>  static struct drm_driver kms_driver;
>
> -static int amdgpu_kick_out_firmware_fb(struct pci_dev *pdev)
> -{
> -       struct apertures_struct *ap;
> -       bool primary = false;
> -
> -       ap = alloc_apertures(1);
> -       if (!ap)
> -               return -ENOMEM;
> -
> -       ap->ranges[0].base = pci_resource_start(pdev, 0);
> -       ap->ranges[0].size = pci_resource_len(pdev, 0);
> -
> -#ifdef CONFIG_X86
> -       primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
> -#endif
> -       drm_fb_helper_remove_conflicting_framebuffers(ap, "amdgpudrmfb", primary);
> -       kfree(ap);
> -
> -       return 0;
> -}
> -
>  static int amdgpu_pci_probe(struct pci_dev *pdev,
>                             const struct pci_device_id *ent)
>  {
> @@ -580,7 +559,7 @@ static int amdgpu_pci_probe(struct pci_dev *pdev,
>                 return ret;
>
>         /* Get rid of things like offb */
> -       ret = amdgpu_kick_out_firmware_fb(pdev);
> +       ret = drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, 0, "amdgpudrmfb");
>         if (ret)
>                 return ret;
>
> --
> 2.11.0
>
> _______________________________________________
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> amd-gfx@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/amd-gfx
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Re: [PATCH 02/13] fbdev: add remove_conflicting_pci_framebuffers()

[Sudip Mukherjee]

On Mon, Nov 27, 2017 at 11:27:59AM +0100, Daniel Vetter wrote:
> On Fri, Nov 24, 2017 at 06:53:31PM +0100, Michał Mirosław wrote:
> > Almost all drivers using remove_conflicting_framebuffers() wrap it with
> > the same code. Extract common part from PCI drivers into separate
> > remove_conflicting_pci_framebuffers().
> > 
> > Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
> 
> Since the only driver that seems to use this is the staging one, which imo
> is a DOA project, not sure it's worth to bother with this here.

afaik, this device is used in production by few manufacturers and it is
usefull for them to have it in the tree and the only reason it is still
in staging is because Tomi announced he will not take any new drivers in
fbdev. And, so I have not taken the initiative to properly move it out
of staging. I think Bartlomiej will also not accept new drivers in fbdev.


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Re: [PATCH 02/13] fbdev: add remove_conflicting_pci_framebuffers()

[Sudip Mukherjee]

On Mon, Nov 27, 2017 at 11:27:59AM +0100, Daniel Vetter wrote:
> On Fri, Nov 24, 2017 at 06:53:31PM +0100, Michał Mirosław wrote:
> > Almost all drivers using remove_conflicting_framebuffers() wrap it with
> > the same code. Extract common part from PCI drivers into separate
> > remove_conflicting_pci_framebuffers().
> > 
> > Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
> 
> Since the only driver that seems to use this is the staging one, which imo
> is a DOA project, not sure it's worth to bother with this here.

afaik, this device is used in production by few manufacturers and it is
usefull for them to have it in the tree and the only reason it is still
in staging is because Tomi announced he will not take any new drivers in
fbdev. And, so I have not taken the initiative to properly move it out
of staging. I think Bartlomiej will also not accept new drivers in fbdev.


--
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Sudip 
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Re: [PATCH 09/13] staging: sm750fb: use simpler remove_conflicting_pci_framebuffers()

[Sudip Mukherjee]

On Mon, Nov 27, 2017 at 11:25:05AM +0100, Daniel Vetter wrote:
> On Fri, Nov 24, 2017 at 06:53:33PM +0100, Michał Mirosław wrote:
> > Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
> > ---
> 
> Why exactly do we have an fbdev driver in staging? Afaiui fbdev is
> entirely closed for new drivers (pls convert to an atomic drm driver
> instead, it likely will be smaller even).

This is in staging for many days now, it was added to staging even
before Tomi announced that he will not accept any new drivers in fbdev.

Converting it to drm driver is the plan and I will have a look into it.

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Re: [PATCH 02/13] fbdev: add remove_conflicting_pci_framebuffers()

[Daniel Vetter]

On Mon, Nov 27, 2017 at 08:52:19PM +0000, Sudip Mukherjee wrote:
> On Mon, Nov 27, 2017 at 11:27:59AM +0100, Daniel Vetter wrote:
> > On Fri, Nov 24, 2017 at 06:53:31PM +0100, Michał Mirosław wrote:
> > > Almost all drivers using remove_conflicting_framebuffers() wrap it with
> > > the same code. Extract common part from PCI drivers into separate
> > > remove_conflicting_pci_framebuffers().
> > > 
> > > Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
> > 
> > Since the only driver that seems to use this is the staging one, which imo
> > is a DOA project, not sure it's worth to bother with this here.
> 
> afaik, this device is used in production by few manufacturers and it is
> usefull for them to have it in the tree and the only reason it is still
> in staging is because Tomi announced he will not take any new drivers in
> fbdev. And, so I have not taken the initiative to properly move it out
> of staging. I think Bartlomiej will also not accept new drivers in fbdev.

Imo, if no one cares about porting it to kms (which will give you an fbdev
driver for free), then we should throw it out. At least I thought staging
was only for stuff that had a reasonable chance to get mainlined. Not as a
dumping ground for drivers that people use, but don't bother to get ready
for mainline.

Greg?
-Daniel
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Re: [PATCH 02/13] fbdev: add remove_conflicting_pci_framebuffers()

[Daniel Vetter]

On Mon, Nov 27, 2017 at 08:52:19PM +0000, Sudip Mukherjee wrote:
> On Mon, Nov 27, 2017 at 11:27:59AM +0100, Daniel Vetter wrote:
> > On Fri, Nov 24, 2017 at 06:53:31PM +0100, Michał Mirosław wrote:
> > > Almost all drivers using remove_conflicting_framebuffers() wrap it with
> > > the same code. Extract common part from PCI drivers into separate
> > > remove_conflicting_pci_framebuffers().
> > > 
> > > Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
> > 
> > Since the only driver that seems to use this is the staging one, which imo
> > is a DOA project, not sure it's worth to bother with this here.
> 
> afaik, this device is used in production by few manufacturers and it is
> usefull for them to have it in the tree and the only reason it is still
> in staging is because Tomi announced he will not take any new drivers in
> fbdev. And, so I have not taken the initiative to properly move it out
> of staging. I think Bartlomiej will also not accept new drivers in fbdev.

Imo, if no one cares about porting it to kms (which will give you an fbdev
driver for free), then we should throw it out. At least I thought staging
was only for stuff that had a reasonable chance to get mainlined. Not as a
dumping ground for drivers that people use, but don't bother to get ready
for mainline.

Greg?
-Daniel
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Re: [PATCH 02/13] fbdev: add remove_conflicting_pci_framebuffers()

[Greg KH]

On Tue, Nov 28, 2017 at 11:22:17AM +0100, Daniel Vetter wrote:
> On Mon, Nov 27, 2017 at 08:52:19PM +0000, Sudip Mukherjee wrote:
> > On Mon, Nov 27, 2017 at 11:27:59AM +0100, Daniel Vetter wrote:
> > > On Fri, Nov 24, 2017 at 06:53:31PM +0100, Michał Mirosław wrote:
> > > > Almost all drivers using remove_conflicting_framebuffers() wrap it with
> > > > the same code. Extract common part from PCI drivers into separate
> > > > remove_conflicting_pci_framebuffers().
> > > > 
> > > > Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
> > > 
> > > Since the only driver that seems to use this is the staging one, which imo
> > > is a DOA project, not sure it's worth to bother with this here.
> > 
> > afaik, this device is used in production by few manufacturers and it is
> > usefull for them to have it in the tree and the only reason it is still
> > in staging is because Tomi announced he will not take any new drivers in
> > fbdev. And, so I have not taken the initiative to properly move it out
> > of staging. I think Bartlomiej will also not accept new drivers in fbdev.
> 
> Imo, if no one cares about porting it to kms (which will give you an fbdev
> driver for free), then we should throw it out. At least I thought staging
> was only for stuff that had a reasonable chance to get mainlined. Not as a
> dumping ground for drivers that people use, but don't bother to get ready
> for mainline.
> 
> Greg?

Yes, if no one is working to get it out of staging, that means no one
cares about it, and it needs to be removed from the tree.

thanks,

greg k-h
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Re: [PATCH 02/13] fbdev: add remove_conflicting_pci_framebuffers()

[Greg KH]

On Tue, Nov 28, 2017 at 11:22:17AM +0100, Daniel Vetter wrote:
> On Mon, Nov 27, 2017 at 08:52:19PM +0000, Sudip Mukherjee wrote:
> > On Mon, Nov 27, 2017 at 11:27:59AM +0100, Daniel Vetter wrote:
> > > On Fri, Nov 24, 2017 at 06:53:31PM +0100, Michał Mirosław wrote:
> > > > Almost all drivers using remove_conflicting_framebuffers() wrap it with
> > > > the same code. Extract common part from PCI drivers into separate
> > > > remove_conflicting_pci_framebuffers().
> > > > 
> > > > Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
> > > 
> > > Since the only driver that seems to use this is the staging one, which imo
> > > is a DOA project, not sure it's worth to bother with this here.
> > 
> > afaik, this device is used in production by few manufacturers and it is
> > usefull for them to have it in the tree and the only reason it is still
> > in staging is because Tomi announced he will not take any new drivers in
> > fbdev. And, so I have not taken the initiative to properly move it out
> > of staging. I think Bartlomiej will also not accept new drivers in fbdev.
> 
> Imo, if no one cares about porting it to kms (which will give you an fbdev
> driver for free), then we should throw it out. At least I thought staging
> was only for stuff that had a reasonable chance to get mainlined. Not as a
> dumping ground for drivers that people use, but don't bother to get ready
> for mainline.
> 
> Greg?

Yes, if no one is working to get it out of staging, that means no one
cares about it, and it needs to be removed from the tree.

thanks,

greg k-h
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Re: [PATCH 02/13] fbdev: add remove_conflicting_pci_framebuffers()

[Sudip Mukherjee]

On Tue, Nov 28, 2017 at 12:32:38PM +0100, Greg KH wrote:
> On Tue, Nov 28, 2017 at 11:22:17AM +0100, Daniel Vetter wrote:
> > On Mon, Nov 27, 2017 at 08:52:19PM +0000, Sudip Mukherjee wrote:
> > > On Mon, Nov 27, 2017 at 11:27:59AM +0100, Daniel Vetter wrote:
> > > > On Fri, Nov 24, 2017 at 06:53:31PM +0100, Michał Mirosław wrote:
> > > > > Almost all drivers using remove_conflicting_framebuffers() wrap it with
> > > > > the same code. Extract common part from PCI drivers into separate
> > > > > remove_conflicting_pci_framebuffers().
> > > > > 
> > > > > Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
> > > > 
> > > > Since the only driver that seems to use this is the staging one, which imo
> > > > is a DOA project, not sure it's worth to bother with this here.
> > > 
> > > afaik, this device is used in production by few manufacturers and it is
> > > usefull for them to have it in the tree and the only reason it is still
> > > in staging is because Tomi announced he will not take any new drivers in
> > > fbdev. And, so I have not taken the initiative to properly move it out
> > > of staging. I think Bartlomiej will also not accept new drivers in fbdev.
> > 
> > Imo, if no one cares about porting it to kms (which will give you an fbdev
> > driver for free), then we should throw it out. At least I thought staging
> > was only for stuff that had a reasonable chance to get mainlined. Not as a
> > dumping ground for drivers that people use, but don't bother to get ready
> > for mainline.
> > 
> > Greg?
> 
> Yes, if no one is working to get it out of staging, that means no one
> cares about it, and it needs to be removed from the tree.

Agreed. I was not working on getting it out of staging as there is no
place for it to go.
But, Teddy Wang told me that they have a working drm driver for it, but
it is not atomic like Daniel was asking for. If it is ok, then I can send
in a patch to remove the existing sm750 from staging and add the new sm750
drm driver to staging. And after it is ready, we can go ahead with moving
it out of staging to drm.

Greg? Daniel?

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Re: [PATCH 02/13] fbdev: add remove_conflicting_pci_framebuffers()

[Sudip Mukherjee]

On Tue, Nov 28, 2017 at 12:32:38PM +0100, Greg KH wrote:
> On Tue, Nov 28, 2017 at 11:22:17AM +0100, Daniel Vetter wrote:
> > On Mon, Nov 27, 2017 at 08:52:19PM +0000, Sudip Mukherjee wrote:
> > > On Mon, Nov 27, 2017 at 11:27:59AM +0100, Daniel Vetter wrote:
> > > > On Fri, Nov 24, 2017 at 06:53:31PM +0100, Michał Mirosław wrote:
> > > > > Almost all drivers using remove_conflicting_framebuffers() wrap it with
> > > > > the same code. Extract common part from PCI drivers into separate
> > > > > remove_conflicting_pci_framebuffers().
> > > > > 
> > > > > Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
> > > > 
> > > > Since the only driver that seems to use this is the staging one, which imo
> > > > is a DOA project, not sure it's worth to bother with this here.
> > > 
> > > afaik, this device is used in production by few manufacturers and it is
> > > usefull for them to have it in the tree and the only reason it is still
> > > in staging is because Tomi announced he will not take any new drivers in
> > > fbdev. And, so I have not taken the initiative to properly move it out
> > > of staging. I think Bartlomiej will also not accept new drivers in fbdev.
> > 
> > Imo, if no one cares about porting it to kms (which will give you an fbdev
> > driver for free), then we should throw it out. At least I thought staging
> > was only for stuff that had a reasonable chance to get mainlined. Not as a
> > dumping ground for drivers that people use, but don't bother to get ready
> > for mainline.
> > 
> > Greg?
> 
> Yes, if no one is working to get it out of staging, that means no one
> cares about it, and it needs to be removed from the tree.

Agreed. I was not working on getting it out of staging as there is no
place for it to go.
But, Teddy Wang told me that they have a working drm driver for it, but
it is not atomic like Daniel was asking for. If it is ok, then I can send
in a patch to remove the existing sm750 from staging and add the new sm750
drm driver to staging. And after it is ready, we can go ahead with moving
it out of staging to drm.

Greg? Daniel?

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Re: [PATCH 02/13] fbdev: add remove_conflicting_pci_framebuffers()

[Greg KH]

On Tue, Nov 28, 2017 at 12:30:30PM +0000, Sudip Mukherjee wrote:
> On Tue, Nov 28, 2017 at 12:32:38PM +0100, Greg KH wrote:
> > On Tue, Nov 28, 2017 at 11:22:17AM +0100, Daniel Vetter wrote:
> > > On Mon, Nov 27, 2017 at 08:52:19PM +0000, Sudip Mukherjee wrote:
> > > > On Mon, Nov 27, 2017 at 11:27:59AM +0100, Daniel Vetter wrote:
> > > > > On Fri, Nov 24, 2017 at 06:53:31PM +0100, Michał Mirosław wrote:
> > > > > > Almost all drivers using remove_conflicting_framebuffers() wrap it with
> > > > > > the same code. Extract common part from PCI drivers into separate
> > > > > > remove_conflicting_pci_framebuffers().
> > > > > > 
> > > > > > Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
> > > > > 
> > > > > Since the only driver that seems to use this is the staging one, which imo
> > > > > is a DOA project, not sure it's worth to bother with this here.
> > > > 
> > > > afaik, this device is used in production by few manufacturers and it is
> > > > usefull for them to have it in the tree and the only reason it is still
> > > > in staging is because Tomi announced he will not take any new drivers in
> > > > fbdev. And, so I have not taken the initiative to properly move it out
> > > > of staging. I think Bartlomiej will also not accept new drivers in fbdev.
> > > 
> > > Imo, if no one cares about porting it to kms (which will give you an fbdev
> > > driver for free), then we should throw it out. At least I thought staging
> > > was only for stuff that had a reasonable chance to get mainlined. Not as a
> > > dumping ground for drivers that people use, but don't bother to get ready
> > > for mainline.
> > > 
> > > Greg?
> > 
> > Yes, if no one is working to get it out of staging, that means no one
> > cares about it, and it needs to be removed from the tree.
> 
> Agreed. I was not working on getting it out of staging as there is no
> place for it to go.
> But, Teddy Wang told me that they have a working drm driver for it, but
> it is not atomic like Daniel was asking for. If it is ok, then I can send
> in a patch to remove the existing sm750 from staging and add the new sm750
> drm driver to staging. And after it is ready, we can go ahead with moving
> it out of staging to drm.
> 
> Greg? Daniel?

I'll always take patches that delete code from staging :)
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Re: [PATCH 11/13] drm/vc4: use simpler remove_conflicting_framebuffers(NULL)

[Eric Anholt]

[-- Attachment #1.1: Type: text/plain, Size: 235 bytes --]

Michał Mirosław <mirq-linux@rere.qmqm.pl> writes:

> Use remove_conflicting_framebuffers(NULL) instead of open-coding it.
>
> Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>

Acked-by: Eric Anholt <eric@anholt.net>

[-- Attachment #1.2: signature.asc --]
[-- Type: application/pgp-signature, Size: 832 bytes --]

[-- Attachment #2: Type: text/plain, Size: 160 bytes --]

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Re: [PATCH 02/13] fbdev: add remove_conflicting_pci_framebuffers()

[Daniel Vetter]

On Tue, Nov 28, 2017 at 12:30:30PM +0000, Sudip Mukherjee wrote:
> On Tue, Nov 28, 2017 at 12:32:38PM +0100, Greg KH wrote:
> > On Tue, Nov 28, 2017 at 11:22:17AM +0100, Daniel Vetter wrote:
> > > On Mon, Nov 27, 2017 at 08:52:19PM +0000, Sudip Mukherjee wrote:
> > > > On Mon, Nov 27, 2017 at 11:27:59AM +0100, Daniel Vetter wrote:
> > > > > On Fri, Nov 24, 2017 at 06:53:31PM +0100, Michał Mirosław wrote:
> > > > > > Almost all drivers using remove_conflicting_framebuffers() wrap it with
> > > > > > the same code. Extract common part from PCI drivers into separate
> > > > > > remove_conflicting_pci_framebuffers().
> > > > > > 
> > > > > > Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
> > > > > 
> > > > > Since the only driver that seems to use this is the staging one, which imo
> > > > > is a DOA project, not sure it's worth to bother with this here.
> > > > 
> > > > afaik, this device is used in production by few manufacturers and it is
> > > > usefull for them to have it in the tree and the only reason it is still
> > > > in staging is because Tomi announced he will not take any new drivers in
> > > > fbdev. And, so I have not taken the initiative to properly move it out
> > > > of staging. I think Bartlomiej will also not accept new drivers in fbdev.
> > > 
> > > Imo, if no one cares about porting it to kms (which will give you an fbdev
> > > driver for free), then we should throw it out. At least I thought staging
> > > was only for stuff that had a reasonable chance to get mainlined. Not as a
> > > dumping ground for drivers that people use, but don't bother to get ready
> > > for mainline.
> > > 
> > > Greg?
> > 
> > Yes, if no one is working to get it out of staging, that means no one
> > cares about it, and it needs to be removed from the tree.
> 
> Agreed. I was not working on getting it out of staging as there is no
> place for it to go.
> But, Teddy Wang told me that they have a working drm driver for it, but
> it is not atomic like Daniel was asking for. If it is ok, then I can send
> in a patch to remove the existing sm750 from staging and add the new sm750
> drm driver to staging. And after it is ready, we can go ahead with moving
> it out of staging to drm.

Please keep the todo item that it needs to be converted to atomic. And
tbh, it's probably faster if you just submit it to dri-devel, assuming you
have time to work on it. For small drivers we tend to be fairly quick in
getting them into good enough shape.

Staging is also a major pain for drm subsystem refactorings, I really,
really, really prefer we don't add more than the vbox pain we have
already.
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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Re: [PATCH 02/13] fbdev: add remove_conflicting_pci_framebuffers()

[Daniel Vetter]

On Tue, Nov 28, 2017 at 12:30:30PM +0000, Sudip Mukherjee wrote:
> On Tue, Nov 28, 2017 at 12:32:38PM +0100, Greg KH wrote:
> > On Tue, Nov 28, 2017 at 11:22:17AM +0100, Daniel Vetter wrote:
> > > On Mon, Nov 27, 2017 at 08:52:19PM +0000, Sudip Mukherjee wrote:
> > > > On Mon, Nov 27, 2017 at 11:27:59AM +0100, Daniel Vetter wrote:
> > > > > On Fri, Nov 24, 2017 at 06:53:31PM +0100, Michał Mirosław wrote:
> > > > > > Almost all drivers using remove_conflicting_framebuffers() wrap it with
> > > > > > the same code. Extract common part from PCI drivers into separate
> > > > > > remove_conflicting_pci_framebuffers().
> > > > > > 
> > > > > > Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
> > > > > 
> > > > > Since the only driver that seems to use this is the staging one, which imo
> > > > > is a DOA project, not sure it's worth to bother with this here.
> > > > 
> > > > afaik, this device is used in production by few manufacturers and it is
> > > > usefull for them to have it in the tree and the only reason it is still
> > > > in staging is because Tomi announced he will not take any new drivers in
> > > > fbdev. And, so I have not taken the initiative to properly move it out
> > > > of staging. I think Bartlomiej will also not accept new drivers in fbdev.
> > > 
> > > Imo, if no one cares about porting it to kms (which will give you an fbdev
> > > driver for free), then we should throw it out. At least I thought staging
> > > was only for stuff that had a reasonable chance to get mainlined. Not as a
> > > dumping ground for drivers that people use, but don't bother to get ready
> > > for mainline.
> > > 
> > > Greg?
> > 
> > Yes, if no one is working to get it out of staging, that means no one
> > cares about it, and it needs to be removed from the tree.
> 
> Agreed. I was not working on getting it out of staging as there is no
> place for it to go.
> But, Teddy Wang told me that they have a working drm driver for it, but
> it is not atomic like Daniel was asking for. If it is ok, then I can send
> in a patch to remove the existing sm750 from staging and add the new sm750
> drm driver to staging. And after it is ready, we can go ahead with moving
> it out of staging to drm.

Please keep the todo item that it needs to be converted to atomic. And
tbh, it's probably faster if you just submit it to dri-devel, assuming you
have time to work on it. For small drivers we tend to be fairly quick in
getting them into good enough shape.

Staging is also a major pain for drm subsystem refactorings, I really,
really, really prefer we don't add more than the vbox pain we have
already.
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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Re: [PATCH 02/13] fbdev: add remove_conflicting_pci_framebuffers()

[Sudip Mukherjee]

Hi Daniel,

On Wed, Nov 29, 2017 at 10:56:34AM +0100, Daniel Vetter wrote:
> On Tue, Nov 28, 2017 at 12:30:30PM +0000, Sudip Mukherjee wrote:
> > On Tue, Nov 28, 2017 at 12:32:38PM +0100, Greg KH wrote:
> > > On Tue, Nov 28, 2017 at 11:22:17AM +0100, Daniel Vetter wrote:
> > > > On Mon, Nov 27, 2017 at 08:52:19PM +0000, Sudip Mukherjee wrote:
> > > > > On Mon, Nov 27, 2017 at 11:27:59AM +0100, Daniel Vetter wrote:
> > > > > > On Fri, Nov 24, 2017 at 06:53:31PM +0100, Michał Mirosław wrote:
> > > > > > > Almost all drivers using remove_conflicting_framebuffers() wrap it with
> > > > > > > the same code. Extract common part from PCI drivers into separate
> > > > > > > remove_conflicting_pci_framebuffers().
> > > > > > > 

<snip>

> > > > 
> > > > Greg?
> > > 
> > > Yes, if no one is working to get it out of staging, that means no one
> > > cares about it, and it needs to be removed from the tree.
> > 
> > Agreed. I was not working on getting it out of staging as there is no
> > place for it to go.
> > But, Teddy Wang told me that they have a working drm driver for it, but
> > it is not atomic like Daniel was asking for. If it is ok, then I can send
> > in a patch to remove the existing sm750 from staging and add the new sm750
> > drm driver to staging. And after it is ready, we can go ahead with moving
> > it out of staging to drm.
> 
> Please keep the todo item that it needs to be converted to atomic. And
> tbh, it's probably faster if you just submit it to dri-devel, assuming you
> have time to work on it. For small drivers we tend to be fairly quick in
> getting them into good enough shape.

I have received the driver from Teddy and pushed it to
https://github.com/sudipm-mukherjee/parport/tree/drm_smi for your first
look into it. It is not even building with next-20171130 and has lots of
build warnings. I will have to do a lot of work on it before I can even
submit it to dri-devel.

Time will be the problem, as this is not part of my day job.

> 
> Staging is also a major pain for drm subsystem refactorings, I really,
> really, really prefer we don't add more than the vbox pain we have
> already.

I am hoping that after seeing it, you will agree to have it in staging. :)

--
Regards
Sudip
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Re: [PATCH 02/13] fbdev: add remove_conflicting_pci_framebuffers()

[Sudip Mukherjee]

Hi Daniel,

On Wed, Nov 29, 2017 at 10:56:34AM +0100, Daniel Vetter wrote:
> On Tue, Nov 28, 2017 at 12:30:30PM +0000, Sudip Mukherjee wrote:
> > On Tue, Nov 28, 2017 at 12:32:38PM +0100, Greg KH wrote:
> > > On Tue, Nov 28, 2017 at 11:22:17AM +0100, Daniel Vetter wrote:
> > > > On Mon, Nov 27, 2017 at 08:52:19PM +0000, Sudip Mukherjee wrote:
> > > > > On Mon, Nov 27, 2017 at 11:27:59AM +0100, Daniel Vetter wrote:
> > > > > > On Fri, Nov 24, 2017 at 06:53:31PM +0100, Michał Mirosław wrote:
> > > > > > > Almost all drivers using remove_conflicting_framebuffers() wrap it with
> > > > > > > the same code. Extract common part from PCI drivers into separate
> > > > > > > remove_conflicting_pci_framebuffers().
> > > > > > > 

<snip>

> > > > 
> > > > Greg?
> > > 
> > > Yes, if no one is working to get it out of staging, that means no one
> > > cares about it, and it needs to be removed from the tree.
> > 
> > Agreed. I was not working on getting it out of staging as there is no
> > place for it to go.
> > But, Teddy Wang told me that they have a working drm driver for it, but
> > it is not atomic like Daniel was asking for. If it is ok, then I can send
> > in a patch to remove the existing sm750 from staging and add the new sm750
> > drm driver to staging. And after it is ready, we can go ahead with moving
> > it out of staging to drm.
> 
> Please keep the todo item that it needs to be converted to atomic. And
> tbh, it's probably faster if you just submit it to dri-devel, assuming you
> have time to work on it. For small drivers we tend to be fairly quick in
> getting them into good enough shape.

I have received the driver from Teddy and pushed it to
https://github.com/sudipm-mukherjee/parport/tree/drm_smi for your first
look into it. It is not even building with next-20171130 and has lots of
build warnings. I will have to do a lot of work on it before I can even
submit it to dri-devel.

Time will be the problem, as this is not part of my day job.

> 
> Staging is also a major pain for drm subsystem refactorings, I really,
> really, really prefer we don't add more than the vbox pain we have
> already.

I am hoping that after seeing it, you will agree to have it in staging. :)

--
Regards
Sudip
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Re: [PATCH 02/13] fbdev: add remove_conflicting_pci_framebuffers()

[Daniel Vetter]

On Thu, Nov 30, 2017 at 11:49:53PM +0000, Sudip Mukherjee wrote:
> Hi Daniel,
> 
> On Wed, Nov 29, 2017 at 10:56:34AM +0100, Daniel Vetter wrote:
> > On Tue, Nov 28, 2017 at 12:30:30PM +0000, Sudip Mukherjee wrote:
> > > On Tue, Nov 28, 2017 at 12:32:38PM +0100, Greg KH wrote:
> > > > On Tue, Nov 28, 2017 at 11:22:17AM +0100, Daniel Vetter wrote:
> > > > > On Mon, Nov 27, 2017 at 08:52:19PM +0000, Sudip Mukherjee wrote:
> > > > > > On Mon, Nov 27, 2017 at 11:27:59AM +0100, Daniel Vetter wrote:
> > > > > > > On Fri, Nov 24, 2017 at 06:53:31PM +0100, Michał Mirosław wrote:
> > > > > > > > Almost all drivers using remove_conflicting_framebuffers() wrap it with
> > > > > > > > the same code. Extract common part from PCI drivers into separate
> > > > > > > > remove_conflicting_pci_framebuffers().
> > > > > > > > 
> 
> <snip>
> 
> > > > > 
> > > > > Greg?
> > > > 
> > > > Yes, if no one is working to get it out of staging, that means no one
> > > > cares about it, and it needs to be removed from the tree.
> > > 
> > > Agreed. I was not working on getting it out of staging as there is no
> > > place for it to go.
> > > But, Teddy Wang told me that they have a working drm driver for it, but
> > > it is not atomic like Daniel was asking for. If it is ok, then I can send
> > > in a patch to remove the existing sm750 from staging and add the new sm750
> > > drm driver to staging. And after it is ready, we can go ahead with moving
> > > it out of staging to drm.
> > 
> > Please keep the todo item that it needs to be converted to atomic. And
> > tbh, it's probably faster if you just submit it to dri-devel, assuming you
> > have time to work on it. For small drivers we tend to be fairly quick in
> > getting them into good enough shape.
> 
> I have received the driver from Teddy and pushed it to
> https://github.com/sudipm-mukherjee/parport/tree/drm_smi for your first
> look into it. It is not even building with next-20171130 and has lots of
> build warnings. I will have to do a lot of work on it before I can even
> submit it to dri-devel.
> 
> Time will be the problem, as this is not part of my day job.
> 
> > 
> > Staging is also a major pain for drm subsystem refactorings, I really,
> > really, really prefer we don't add more than the vbox pain we have
> > already.
> 
> I am hoping that after seeing it, you will agree to have it in staging. :)

So I know Greg is willing to take anything into staging, but I'm no fan.
We refactor and improve drm a lot, with a lot of cross-driver changes
necessary to move things forward. We can do that since we have a generally
rather active development community, and we try hard to keep most drivers
in reasonable good shape and so easy to maintain.

If you know throw a pile of unmaintainable stuff into staging, but without
working on it, then that's just cost, no benefit to the dri-devel
community. On top, staging tree is separate from drm trees, so more pain
to synchronize trees (and we have to do that a few times per release cycle
or drivers simply stop compiling). Where's the upside of taking this
driver into staging?

One is users, but ime for soc display drivers usually everything else is
in worse shape (e.g. even great drivers like the one for qualcom must be
tested on some vendor tree because critical core bits are missing in
upstream), so "more users" is not the good reason. And it's clearly not
"more developers", because no time to clean things up. So what exactly is
the good reason to put this into staging instead of just waiting until
someone has the time to clean it up quickly?

Thanks, Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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Re: [PATCH 02/13] fbdev: add remove_conflicting_pci_framebuffers()

[Daniel Vetter]

On Thu, Nov 30, 2017 at 11:49:53PM +0000, Sudip Mukherjee wrote:
> Hi Daniel,
> 
> On Wed, Nov 29, 2017 at 10:56:34AM +0100, Daniel Vetter wrote:
> > On Tue, Nov 28, 2017 at 12:30:30PM +0000, Sudip Mukherjee wrote:
> > > On Tue, Nov 28, 2017 at 12:32:38PM +0100, Greg KH wrote:
> > > > On Tue, Nov 28, 2017 at 11:22:17AM +0100, Daniel Vetter wrote:
> > > > > On Mon, Nov 27, 2017 at 08:52:19PM +0000, Sudip Mukherjee wrote:
> > > > > > On Mon, Nov 27, 2017 at 11:27:59AM +0100, Daniel Vetter wrote:
> > > > > > > On Fri, Nov 24, 2017 at 06:53:31PM +0100, Michał Mirosław wrote:
> > > > > > > > Almost all drivers using remove_conflicting_framebuffers() wrap it with
> > > > > > > > the same code. Extract common part from PCI drivers into separate
> > > > > > > > remove_conflicting_pci_framebuffers().
> > > > > > > > 
> 
> <snip>
> 
> > > > > 
> > > > > Greg?
> > > > 
> > > > Yes, if no one is working to get it out of staging, that means no one
> > > > cares about it, and it needs to be removed from the tree.
> > > 
> > > Agreed. I was not working on getting it out of staging as there is no
> > > place for it to go.
> > > But, Teddy Wang told me that they have a working drm driver for it, but
> > > it is not atomic like Daniel was asking for. If it is ok, then I can send
> > > in a patch to remove the existing sm750 from staging and add the new sm750
> > > drm driver to staging. And after it is ready, we can go ahead with moving
> > > it out of staging to drm.
> > 
> > Please keep the todo item that it needs to be converted to atomic. And
> > tbh, it's probably faster if you just submit it to dri-devel, assuming you
> > have time to work on it. For small drivers we tend to be fairly quick in
> > getting them into good enough shape.
> 
> I have received the driver from Teddy and pushed it to
> https://github.com/sudipm-mukherjee/parport/tree/drm_smi for your first
> look into it. It is not even building with next-20171130 and has lots of
> build warnings. I will have to do a lot of work on it before I can even
> submit it to dri-devel.
> 
> Time will be the problem, as this is not part of my day job.
> 
> > 
> > Staging is also a major pain for drm subsystem refactorings, I really,
> > really, really prefer we don't add more than the vbox pain we have
> > already.
> 
> I am hoping that after seeing it, you will agree to have it in staging. :)

So I know Greg is willing to take anything into staging, but I'm no fan.
We refactor and improve drm a lot, with a lot of cross-driver changes
necessary to move things forward. We can do that since we have a generally
rather active development community, and we try hard to keep most drivers
in reasonable good shape and so easy to maintain.

If you know throw a pile of unmaintainable stuff into staging, but without
working on it, then that's just cost, no benefit to the dri-devel
community. On top, staging tree is separate from drm trees, so more pain
to synchronize trees (and we have to do that a few times per release cycle
or drivers simply stop compiling). Where's the upside of taking this
driver into staging?

One is users, but ime for soc display drivers usually everything else is
in worse shape (e.g. even great drivers like the one for qualcom must be
tested on some vendor tree because critical core bits are missing in
upstream), so "more users" is not the good reason. And it's clearly not
"more developers", because no time to clean things up. So what exactly is
the good reason to put this into staging instead of just waiting until
someone has the time to clean it up quickly?

Thanks, Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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Re: [PATCH 02/13] fbdev: add remove_conflicting_pci_framebuffers()

[Sudip Mukherjee]

On Fri, Dec 01, 2017 at 08:19:16AM +0100, Daniel Vetter wrote:
> On Thu, Nov 30, 2017 at 11:49:53PM +0000, Sudip Mukherjee wrote:
> > Hi Daniel,
> > 
> > <snip>
> > 
> > > > > > 
> > > > > > Greg?
> > > > > 
> > > > > Yes, if no one is working to get it out of staging, that means no one
> > > > > cares about it, and it needs to be removed from the tree.
> > > > 
> > > > Agreed. I was not working on getting it out of staging as there is no
> > > > place for it to go.
> > > > But, Teddy Wang told me that they have a working drm driver for it, but
> > > > it is not atomic like Daniel was asking for. If it is ok, then I can send
> > > > in a patch to remove the existing sm750 from staging and add the new sm750
> > > > drm driver to staging. And after it is ready, we can go ahead with moving
> > > > it out of staging to drm.
> > > 
> > > Please keep the todo item that it needs to be converted to atomic. And
> > > tbh, it's probably faster if you just submit it to dri-devel, assuming you
> > > have time to work on it. For small drivers we tend to be fairly quick in
> > > getting them into good enough shape.
> > 
> > I have received the driver from Teddy and pushed it to
> > https://github.com/sudipm-mukherjee/parport/tree/drm_smi for your first
> > look into it. It is not even building with next-20171130 and has lots of
> > build warnings. I will have to do a lot of work on it before I can even
> > submit it to dri-devel.
> > 
> > Time will be the problem, as this is not part of my day job.
> > 
> > > 
> > > Staging is also a major pain for drm subsystem refactorings, I really,
> > > really, really prefer we don't add more than the vbox pain we have
> > > already.
> > 
> > I am hoping that after seeing it, you will agree to have it in staging. :)
> 
> So I know Greg is willing to take anything into staging, but I'm no fan.
> We refactor and improve drm a lot, with a lot of cross-driver changes
> necessary to move things forward. We can do that since we have a generally
> rather active development community, and we try hard to keep most drivers
> in reasonable good shape and so easy to maintain.
> 
> If you know throw a pile of unmaintainable stuff into staging, but without
> working on it, then that's just cost, no benefit to the dri-devel
> community. On top, staging tree is separate from drm trees, so more pain
> to synchronize trees (and we have to do that a few times per release cycle
> or drivers simply stop compiling). Where's the upside of taking this
> driver into staging?
> 
> One is users, but ime for soc display drivers usually everything else is
> in worse shape (e.g. even great drivers like the one for qualcom must be
> tested on some vendor tree because critical core bits are missing in
> upstream), so "more users" is not the good reason. And it's clearly not
> "more developers", because no time to clean things up. So what exactly is
> the good reason to put this into staging instead of just waiting until
> someone has the time to clean it up quickly?

Ok, I will not try to give any more reasons now. :)

I will cleanup the basic things I can and then submit it to dri-devel.

Greg - Please keep the SM750 driver in staging for now. I will send
a patch later to add in TODO the git location where the drm driver is
being developed. And when that drm driver is ready, I will send a patch
to remove the sm750fb driver from staging.

--
Regards
Sudip

Re: [PATCH 02/13] fbdev: add remove_conflicting_pci_framebuffers()

[Emil Velikov]

On 30 November 2017 at 23:49, Sudip Mukherjee
<sudipm.mukherjee@gmail.com> wrote:
> Hi Daniel,
>
> On Wed, Nov 29, 2017 at 10:56:34AM +0100, Daniel Vetter wrote:
>> On Tue, Nov 28, 2017 at 12:30:30PM +0000, Sudip Mukherjee wrote:
>> > On Tue, Nov 28, 2017 at 12:32:38PM +0100, Greg KH wrote:
>> > > On Tue, Nov 28, 2017 at 11:22:17AM +0100, Daniel Vetter wrote:
>> > > > On Mon, Nov 27, 2017 at 08:52:19PM +0000, Sudip Mukherjee wrote:
>> > > > > On Mon, Nov 27, 2017 at 11:27:59AM +0100, Daniel Vetter wrote:
>> > > > > > On Fri, Nov 24, 2017 at 06:53:31PM +0100, Michał Mirosław wrote:
>> > > > > > > Almost all drivers using remove_conflicting_framebuffers() wrap it with
>> > > > > > > the same code. Extract common part from PCI drivers into separate
>> > > > > > > remove_conflicting_pci_framebuffers().
>> > > > > > >
>
> <snip>
>
>> > > >
>> > > > Greg?
>> > >
>> > > Yes, if no one is working to get it out of staging, that means no one
>> > > cares about it, and it needs to be removed from the tree.
>> >
>> > Agreed. I was not working on getting it out of staging as there is no
>> > place for it to go.
>> > But, Teddy Wang told me that they have a working drm driver for it, but
>> > it is not atomic like Daniel was asking for. If it is ok, then I can send
>> > in a patch to remove the existing sm750 from staging and add the new sm750
>> > drm driver to staging. And after it is ready, we can go ahead with moving
>> > it out of staging to drm.
>>
>> Please keep the todo item that it needs to be converted to atomic. And
>> tbh, it's probably faster if you just submit it to dri-devel, assuming you
>> have time to work on it. For small drivers we tend to be fairly quick in
>> getting them into good enough shape.
>
> I have received the driver from Teddy and pushed it to
> https://github.com/sudipm-mukherjee/parport/tree/drm_smi for your first
> look into it. It is not even building with next-20171130 and has lots of
> build warnings. I will have to do a lot of work on it before I can even
> submit it to dri-devel.
>
A crazy idea, mostly towards Tedd and Sudip:

Start small and build gradually. An example split for separate patch series:

 - one HW, basic setup + atomic KMS
 - add second HW
 - more KMS features
 - fancy memory management
 - 2D/3D/other acceleration

The driver as seen above tries to do all of the above (almost, it's not atomic)
at once - 40k loc.

Someone familiar with the code can quickly split it up and while doing
so, feed it through checkpatch.
Current code is _very_ far from kernel coding style, plus the
copyright blurp is very disturbing:

* All rights are reserved. Reproduction or in part is prohibited
* without the written consent of the copyright owner.

HTH
Emil
_______________________________________________
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Re: [PATCH 02/13] fbdev: add remove_conflicting_pci_framebuffers()

[Emil Velikov]

On 30 November 2017 at 23:49, Sudip Mukherjee
<sudipm.mukherjee@gmail.com> wrote:
> Hi Daniel,
>
> On Wed, Nov 29, 2017 at 10:56:34AM +0100, Daniel Vetter wrote:
>> On Tue, Nov 28, 2017 at 12:30:30PM +0000, Sudip Mukherjee wrote:
>> > On Tue, Nov 28, 2017 at 12:32:38PM +0100, Greg KH wrote:
>> > > On Tue, Nov 28, 2017 at 11:22:17AM +0100, Daniel Vetter wrote:
>> > > > On Mon, Nov 27, 2017 at 08:52:19PM +0000, Sudip Mukherjee wrote:
>> > > > > On Mon, Nov 27, 2017 at 11:27:59AM +0100, Daniel Vetter wrote:
>> > > > > > On Fri, Nov 24, 2017 at 06:53:31PM +0100, Michał Mirosław wrote:
>> > > > > > > Almost all drivers using remove_conflicting_framebuffers() wrap it with
>> > > > > > > the same code. Extract common part from PCI drivers into separate
>> > > > > > > remove_conflicting_pci_framebuffers().
>> > > > > > >
>
> <snip>
>
>> > > >
>> > > > Greg?
>> > >
>> > > Yes, if no one is working to get it out of staging, that means no one
>> > > cares about it, and it needs to be removed from the tree.
>> >
>> > Agreed. I was not working on getting it out of staging as there is no
>> > place for it to go.
>> > But, Teddy Wang told me that they have a working drm driver for it, but
>> > it is not atomic like Daniel was asking for. If it is ok, then I can send
>> > in a patch to remove the existing sm750 from staging and add the new sm750
>> > drm driver to staging. And after it is ready, we can go ahead with moving
>> > it out of staging to drm.
>>
>> Please keep the todo item that it needs to be converted to atomic. And
>> tbh, it's probably faster if you just submit it to dri-devel, assuming you
>> have time to work on it. For small drivers we tend to be fairly quick in
>> getting them into good enough shape.
>
> I have received the driver from Teddy and pushed it to
> https://github.com/sudipm-mukherjee/parport/tree/drm_smi for your first
> look into it. It is not even building with next-20171130 and has lots of
> build warnings. I will have to do a lot of work on it before I can even
> submit it to dri-devel.
>
A crazy idea, mostly towards Tedd and Sudip:

Start small and build gradually. An example split for separate patch series:

 - one HW, basic setup + atomic KMS
 - add second HW
 - more KMS features
 - fancy memory management
 - 2D/3D/other acceleration

The driver as seen above tries to do all of the above (almost, it's not atomic)
at once - 40k loc.

Someone familiar with the code can quickly split it up and while doing
so, feed it through checkpatch.
Current code is _very_ far from kernel coding style, plus the
copyright blurp is very disturbing:

* All rights are reserved. Reproduction or in part is prohibited
* without the written consent of the copyright owner.

HTH
Emil
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Re: [PATCH 02/13] fbdev: add remove_conflicting_pci_framebuffers()

[Sudip Mukherjee]

Hi Emil,

On Fri, Dec 01, 2017 at 02:40:11PM +0000, Emil Velikov wrote:
> On 30 November 2017 at 23:49, Sudip Mukherjee
> <sudipm.mukherjee@gmail.com> wrote:
> > Hi Daniel,
> >
> > On Wed, Nov 29, 2017 at 10:56:34AM +0100, Daniel Vetter wrote:
<snip>
> > submit it to dri-devel.
> >
> A crazy idea, mostly towards Tedd and Sudip:
> 
> Start small and build gradually. An example split for separate patch series:
> 
>  - one HW, basic setup + atomic KMS
>  - add second HW
>  - more KMS features
>  - fancy memory management
>  - 2D/3D/other acceleration
> 
> The driver as seen above tries to do all of the above (almost, it's not atomic)
> at once - 40k loc.
> 
> Someone familiar with the code can quickly split it up and while doing
> so, feed it through checkpatch.

I can try but will be very tough since I have to go through the code to
get familiar with it and, as mentioned before, its not part of my dayjob,
so time will be a problem. Developing from scratch takes much more time
than fixing something.

> Current code is _very_ far from kernel coding style, plus the
> copyright blurp is very disturbing:

I will fix the coding style before my first submission to dri-devel,
which should be in January after I have setup my desktop with the
hardware for testing.

The copyright thing - I am sure Teddy can talk to his company and will
confirm that we can change it to the way kernel code is done.

--
Regards
Sudip

Re: [PATCH 02/13] fbdev: add remove_conflicting_pci_framebuffers()

[Sudip Mukherjee]

Hi Emil,

On Fri, Dec 01, 2017 at 02:40:11PM +0000, Emil Velikov wrote:
> On 30 November 2017 at 23:49, Sudip Mukherjee
> <sudipm.mukherjee@gmail.com> wrote:
> > Hi Daniel,
> >
> > On Wed, Nov 29, 2017 at 10:56:34AM +0100, Daniel Vetter wrote:
<snip>
> > submit it to dri-devel.
> >
> A crazy idea, mostly towards Tedd and Sudip:
> 
> Start small and build gradually. An example split for separate patch series:
> 
>  - one HW, basic setup + atomic KMS
>  - add second HW
>  - more KMS features
>  - fancy memory management
>  - 2D/3D/other acceleration
> 
> The driver as seen above tries to do all of the above (almost, it's not atomic)
> at once - 40k loc.
> 
> Someone familiar with the code can quickly split it up and while doing
> so, feed it through checkpatch.

I can try but will be very tough since I have to go through the code to
get familiar with it and, as mentioned before, its not part of my dayjob,
so time will be a problem. Developing from scratch takes much more time
than fixing something.

> Current code is _very_ far from kernel coding style, plus the
> copyright blurp is very disturbing:

I will fix the coding style before my first submission to dri-devel,
which should be in January after I have setup my desktop with the
hardware for testing.

The copyright thing - I am sure Teddy can talk to his company and will
confirm that we can change it to the way kernel code is done.

--
Regards
Sudip
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Re: [PATCH 00/13] remove_conflicting_framebuffers() cleanup

[Bartlomiej Zolnierkiewicz]

On Monday, November 27, 2017 11:30:44 AM Daniel Vetter wrote:
> On Fri, Nov 24, 2017 at 06:53:25PM +0100, Michał Mirosław wrote:
> > This series cleans up duplicated code for replacing firmware FB
> > driver with proper DRI driver and adds handover support to
> > Tegra driver.

Please Cc: me on and linux-fbdev ML on fbdev related patches
(I was Cc:-ed only on the cover letter and patch #10, linux-fbdev
was not Cc:-ed at all).

> > The last patch is here because it uses new semantics of
> > remove_conflicting_framebuffers() from this series. This
> > can be considered independently, though.
> 
> Except for that patches I've commented on:
> 
> Acked-by: Daniel Vetter <daniel.vetter-/w4YWyX8dFk@public.gmane.org>
> 
> Since this is for tegra and Thierry has drm-misc commit rights, it's
> probably simplest when Thierry pushes this all to drm-misc once driver
> maintainers had a chance to look at it. Also needs and ack from Bart for
> the fbdev sides.

For fbdev changes:

Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>

Best regards,
--
Bartlomiej Zolnierkiewicz
Samsung R&D Institute Poland
Samsung Electronics

Re: [PATCH 00/13] remove_conflicting_framebuffers() cleanup

[Bartlomiej Zolnierkiewicz]

On Monday, November 27, 2017 11:30:44 AM Daniel Vetter wrote:
> On Fri, Nov 24, 2017 at 06:53:25PM +0100, Michał Mirosław wrote:
> > This series cleans up duplicated code for replacing firmware FB
> > driver with proper DRI driver and adds handover support to
> > Tegra driver.

Please Cc: me on and linux-fbdev ML on fbdev related patches
(I was Cc:-ed only on the cover letter and patch #10, linux-fbdev
was not Cc:-ed at all).

> > The last patch is here because it uses new semantics of
> > remove_conflicting_framebuffers() from this series. This
> > can be considered independently, though.
> 
> Except for that patches I've commented on:
> 
> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
> 
> Since this is for tegra and Thierry has drm-misc commit rights, it's
> probably simplest when Thierry pushes this all to drm-misc once driver
> maintainers had a chance to look at it. Also needs and ack from Bart for
> the fbdev sides.

For fbdev changes:

Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>

Best regards,
--
Bartlomiej Zolnierkiewicz
Samsung R&D Institute Poland
Samsung Electronics

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[PATCH v2 00/12] remove_conflicting_framebuffers() cleanup

[Michał Mirosław]

This series cleans up duplicated code for replacing firmware FB
driver with proper DRI driver and adds handover support to
Tegra driver.

This is a sligtly updated version of a series sent on 24 Nov 2017.

v2:
 - rebased on current drm-next
 - dropped staging/sm750fb changes
 - added kernel docs for DRM helpers

Michał Mirosław (12):
  fbdev: show fbdev number for debugging
  fbdev: allow apertures == NULL in remove_conflicting_framebuffers()
  fbdev: add remove_conflicting_pci_framebuffers()
  drm/amdgpu: use simpler remove_conflicting_pci_framebuffers()
  drm/bochs: use simpler remove_conflicting_pci_framebuffers()
  drm/cirrus: use simpler remove_conflicting_pci_framebuffers()
  drm/mgag200: use simpler remove_conflicting_pci_framebuffers()
  drm/radeon: use simpler remove_conflicting_pci_framebuffers()
  drm/virtio: use simpler remove_conflicting_pci_framebuffers()
  drm/vc4: use simpler remove_conflicting_framebuffers(NULL)
  drm/sun4i: use simpler remove_conflicting_framebuffers(NULL)
  drm/tegra: kick out simplefb

 drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c  | 24 +-------------
 drivers/gpu/drm/bochs/bochs_drv.c        | 18 +----------
 drivers/gpu/drm/cirrus/cirrus_drv.c      | 23 +-------------
 drivers/gpu/drm/mgag200/mgag200_drv.c    | 21 +------------
 drivers/gpu/drm/mgag200/mgag200_main.c   |  9 ------
 drivers/gpu/drm/radeon/radeon_drv.c      | 23 +-------------
 drivers/gpu/drm/sun4i/sun4i_drv.c        | 18 +----------
 drivers/gpu/drm/tegra/drm.c              |  4 +++
 drivers/gpu/drm/vc4/vc4_drv.c            | 20 +-----------
 drivers/gpu/drm/virtio/virtgpu_drm_bus.c | 24 ++------------
 drivers/video/fbdev/core/fbmem.c         | 40 ++++++++++++++++++++++--
 include/drm/drm_fb_helper.h              | 34 ++++++++++++++++++++
 include/linux/fb.h                       |  2 ++
 13 files changed, 88 insertions(+), 172 deletions(-)

-- 
2.18.0


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[PATCH v2 00/12] remove_conflicting_framebuffers() cleanup

[Michał Mirosław]

This series cleans up duplicated code for replacing firmware FB
driver with proper DRI driver and adds handover support to
Tegra driver.

This is a sligtly updated version of a series sent on 24 Nov 2017.

v2:
 - rebased on current drm-next
 - dropped staging/sm750fb changes
 - added kernel docs for DRM helpers

Michał Mirosław (12):
  fbdev: show fbdev number for debugging
  fbdev: allow apertures = NULL in remove_conflicting_framebuffers()
  fbdev: add remove_conflicting_pci_framebuffers()
  drm/amdgpu: use simpler remove_conflicting_pci_framebuffers()
  drm/bochs: use simpler remove_conflicting_pci_framebuffers()
  drm/cirrus: use simpler remove_conflicting_pci_framebuffers()
  drm/mgag200: use simpler remove_conflicting_pci_framebuffers()
  drm/radeon: use simpler remove_conflicting_pci_framebuffers()
  drm/virtio: use simpler remove_conflicting_pci_framebuffers()
  drm/vc4: use simpler remove_conflicting_framebuffers(NULL)
  drm/sun4i: use simpler remove_conflicting_framebuffers(NULL)
  drm/tegra: kick out simplefb

 drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c  | 24 +-------------
 drivers/gpu/drm/bochs/bochs_drv.c        | 18 +----------
 drivers/gpu/drm/cirrus/cirrus_drv.c      | 23 +-------------
 drivers/gpu/drm/mgag200/mgag200_drv.c    | 21 +------------
 drivers/gpu/drm/mgag200/mgag200_main.c   |  9 ------
 drivers/gpu/drm/radeon/radeon_drv.c      | 23 +-------------
 drivers/gpu/drm/sun4i/sun4i_drv.c        | 18 +----------
 drivers/gpu/drm/tegra/drm.c              |  4 +++
 drivers/gpu/drm/vc4/vc4_drv.c            | 20 +-----------
 drivers/gpu/drm/virtio/virtgpu_drm_bus.c | 24 ++------------
 drivers/video/fbdev/core/fbmem.c         | 40 ++++++++++++++++++++++--
 include/drm/drm_fb_helper.h              | 34 ++++++++++++++++++++
 include/linux/fb.h                       |  2 ++
 13 files changed, 88 insertions(+), 172 deletions(-)

-- 
2.18.0

[PATCH v2 00/12] remove_conflicting_framebuffers() cleanup

[Michał Mirosław]

This series cleans up duplicated code for replacing firmware FB
driver with proper DRI driver and adds handover support to
Tegra driver.

This is a sligtly updated version of a series sent on 24 Nov 2017.

v2:
 - rebased on current drm-next
 - dropped staging/sm750fb changes
 - added kernel docs for DRM helpers

Michał Mirosław (12):
  fbdev: show fbdev number for debugging
  fbdev: allow apertures == NULL in remove_conflicting_framebuffers()
  fbdev: add remove_conflicting_pci_framebuffers()
  drm/amdgpu: use simpler remove_conflicting_pci_framebuffers()
  drm/bochs: use simpler remove_conflicting_pci_framebuffers()
  drm/cirrus: use simpler remove_conflicting_pci_framebuffers()
  drm/mgag200: use simpler remove_conflicting_pci_framebuffers()
  drm/radeon: use simpler remove_conflicting_pci_framebuffers()
  drm/virtio: use simpler remove_conflicting_pci_framebuffers()
  drm/vc4: use simpler remove_conflicting_framebuffers(NULL)
  drm/sun4i: use simpler remove_conflicting_framebuffers(NULL)
  drm/tegra: kick out simplefb

 drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c  | 24 +-------------
 drivers/gpu/drm/bochs/bochs_drv.c        | 18 +----------
 drivers/gpu/drm/cirrus/cirrus_drv.c      | 23 +-------------
 drivers/gpu/drm/mgag200/mgag200_drv.c    | 21 +------------
 drivers/gpu/drm/mgag200/mgag200_main.c   |  9 ------
 drivers/gpu/drm/radeon/radeon_drv.c      | 23 +-------------
 drivers/gpu/drm/sun4i/sun4i_drv.c        | 18 +----------
 drivers/gpu/drm/tegra/drm.c              |  4 +++
 drivers/gpu/drm/vc4/vc4_drv.c            | 20 +-----------
 drivers/gpu/drm/virtio/virtgpu_drm_bus.c | 24 ++------------
 drivers/video/fbdev/core/fbmem.c         | 40 ++++++++++++++++++++++--
 include/drm/drm_fb_helper.h              | 34 ++++++++++++++++++++
 include/linux/fb.h                       |  2 ++
 13 files changed, 88 insertions(+), 172 deletions(-)

-- 
2.18.0

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[PATCH v2 00/12] remove_conflicting_framebuffers() cleanup

[Michał Mirosław]

This series cleans up duplicated code for replacing firmware FB
driver with proper DRI driver and adds handover support to
Tegra driver.

This is a sligtly updated version of a series sent on 24 Nov 2017.

v2:
 - rebased on current drm-next
 - dropped staging/sm750fb changes
 - added kernel docs for DRM helpers

Micha? Miros?aw (12):
  fbdev: show fbdev number for debugging
  fbdev: allow apertures == NULL in remove_conflicting_framebuffers()
  fbdev: add remove_conflicting_pci_framebuffers()
  drm/amdgpu: use simpler remove_conflicting_pci_framebuffers()
  drm/bochs: use simpler remove_conflicting_pci_framebuffers()
  drm/cirrus: use simpler remove_conflicting_pci_framebuffers()
  drm/mgag200: use simpler remove_conflicting_pci_framebuffers()
  drm/radeon: use simpler remove_conflicting_pci_framebuffers()
  drm/virtio: use simpler remove_conflicting_pci_framebuffers()
  drm/vc4: use simpler remove_conflicting_framebuffers(NULL)
  drm/sun4i: use simpler remove_conflicting_framebuffers(NULL)
  drm/tegra: kick out simplefb

 drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c  | 24 +-------------
 drivers/gpu/drm/bochs/bochs_drv.c        | 18 +----------
 drivers/gpu/drm/cirrus/cirrus_drv.c      | 23 +-------------
 drivers/gpu/drm/mgag200/mgag200_drv.c    | 21 +------------
 drivers/gpu/drm/mgag200/mgag200_main.c   |  9 ------
 drivers/gpu/drm/radeon/radeon_drv.c      | 23 +-------------
 drivers/gpu/drm/sun4i/sun4i_drv.c        | 18 +----------
 drivers/gpu/drm/tegra/drm.c              |  4 +++
 drivers/gpu/drm/vc4/vc4_drv.c            | 20 +-----------
 drivers/gpu/drm/virtio/virtgpu_drm_bus.c | 24 ++------------
 drivers/video/fbdev/core/fbmem.c         | 40 ++++++++++++++++++++++--
 include/drm/drm_fb_helper.h              | 34 ++++++++++++++++++++
 include/linux/fb.h                       |  2 ++
 13 files changed, 88 insertions(+), 172 deletions(-)

-- 
2.18.0

[PATCH v2 01/12] fbdev: show fbdev number for debugging

[Michał Mirosław]

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/video/fbdev/core/fbmem.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c
index f741ba8df01b..30a18d4c9de4 100644
--- a/drivers/video/fbdev/core/fbmem.c
+++ b/drivers/video/fbdev/core/fbmem.c
@@ -1618,8 +1618,8 @@ static int do_remove_conflicting_framebuffers(struct apertures_struct *a,
 			(primary && gen_aper && gen_aper->count &&
 			 gen_aper->ranges[0].base == VGA_FB_PHYS)) {
 
-			printk(KERN_INFO "fb: switching to %s from %s\n",
-			       name, registered_fb[i]->fix.id);
+			printk(KERN_INFO "fb%d: switching to %s from %s\n",
+			       i, name, registered_fb[i]->fix.id);
 			ret = do_unregister_framebuffer(registered_fb[i]);
 			if (ret)
 				return ret;
-- 
2.18.0


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[PATCH v2 02/12] fbdev: allow apertures == NULL in remove_conflicting_framebuffers()

[Michał Mirosław]

Interpret (otherwise-invalid) NULL apertures argument to mean all-memory
range. This will allow to remove several duplicates of this code from
drivers in following patches.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
[for v1]
Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>

---
v2: added kerneldoc to corresponding DRM helper
---
 drivers/video/fbdev/core/fbmem.c | 14 ++++++++++++++
 include/drm/drm_fb_helper.h      | 10 ++++++++++
 2 files changed, 24 insertions(+)

diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c
index 30a18d4c9de4..0df148eb4699 100644
--- a/drivers/video/fbdev/core/fbmem.c
+++ b/drivers/video/fbdev/core/fbmem.c
@@ -1779,11 +1779,25 @@ int remove_conflicting_framebuffers(struct apertures_struct *a,
 				    const char *name, bool primary)
 {
 	int ret;
+	bool do_free = false;
+
+	if (!a) {
+		a = alloc_apertures(1);
+		if (!a)
+			return -ENOMEM;
+
+		a->ranges[0].base = 0;
+		a->ranges[0].size = ~0;
+		do_free = true;
+	}
 
 	mutex_lock(&registration_lock);
 	ret = do_remove_conflicting_framebuffers(a, name, primary);
 	mutex_unlock(&registration_lock);
 
+	if (do_free)
+		kfree(a);
+
 	return ret;
 }
 EXPORT_SYMBOL(remove_conflicting_framebuffers);
diff --git a/include/drm/drm_fb_helper.h b/include/drm/drm_fb_helper.h
index b069433e7fc1..1c1e53abb25d 100644
--- a/include/drm/drm_fb_helper.h
+++ b/include/drm/drm_fb_helper.h
@@ -566,6 +566,16 @@ static inline void drm_fb_helper_output_poll_changed(struct drm_device *dev)
 
 #endif
 
+/**
+ * drm_fb_helper_remove_conflicting_framebuffers - remove firmware framebuffers
+ * @a: memory range, users of which are to be removed
+ * @name: requesting driver name
+ * @primary: also kick vga16fb if present
+ *
+ * This function removes framebuffer devices (eg. initialized by firmware)
+ * which use memory range described by @a. If @a is NULL all such devices are
+ * removed.
+ */
 static inline int
 drm_fb_helper_remove_conflicting_framebuffers(struct apertures_struct *a,
 					      const char *name, bool primary)
-- 
2.18.0


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[PATCH v2 02/12] fbdev: allow apertures == NULL in remove_conflicting_framebuffers()

[Michał Mirosław]

Interpret (otherwise-invalid) NULL apertures argument to mean all-memory
range. This will allow to remove several duplicates of this code from
drivers in following patches.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
[for v1]
Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>

---
v2: added kerneldoc to corresponding DRM helper
---
 drivers/video/fbdev/core/fbmem.c | 14 ++++++++++++++
 include/drm/drm_fb_helper.h      | 10 ++++++++++
 2 files changed, 24 insertions(+)

diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c
index 30a18d4c9de4..0df148eb4699 100644
--- a/drivers/video/fbdev/core/fbmem.c
+++ b/drivers/video/fbdev/core/fbmem.c
@@ -1779,11 +1779,25 @@ int remove_conflicting_framebuffers(struct apertures_struct *a,
 				    const char *name, bool primary)
 {
 	int ret;
+	bool do_free = false;
+
+	if (!a) {
+		a = alloc_apertures(1);
+		if (!a)
+			return -ENOMEM;
+
+		a->ranges[0].base = 0;
+		a->ranges[0].size = ~0;
+		do_free = true;
+	}
 
 	mutex_lock(&registration_lock);
 	ret = do_remove_conflicting_framebuffers(a, name, primary);
 	mutex_unlock(&registration_lock);
 
+	if (do_free)
+		kfree(a);
+
 	return ret;
 }
 EXPORT_SYMBOL(remove_conflicting_framebuffers);
diff --git a/include/drm/drm_fb_helper.h b/include/drm/drm_fb_helper.h
index b069433e7fc1..1c1e53abb25d 100644
--- a/include/drm/drm_fb_helper.h
+++ b/include/drm/drm_fb_helper.h
@@ -566,6 +566,16 @@ static inline void drm_fb_helper_output_poll_changed(struct drm_device *dev)
 
 #endif
 
+/**
+ * drm_fb_helper_remove_conflicting_framebuffers - remove firmware framebuffers
+ * @a: memory range, users of which are to be removed
+ * @name: requesting driver name
+ * @primary: also kick vga16fb if present
+ *
+ * This function removes framebuffer devices (eg. initialized by firmware)
+ * which use memory range described by @a. If @a is NULL all such devices are
+ * removed.
+ */
 static inline int
 drm_fb_helper_remove_conflicting_framebuffers(struct apertures_struct *a,
 					      const char *name, bool primary)
-- 
2.18.0

[PATCH v2 01/12] fbdev: show fbdev number for debugging

[Michał Mirosław]

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/video/fbdev/core/fbmem.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c
index f741ba8df01b..30a18d4c9de4 100644
--- a/drivers/video/fbdev/core/fbmem.c
+++ b/drivers/video/fbdev/core/fbmem.c
@@ -1618,8 +1618,8 @@ static int do_remove_conflicting_framebuffers(struct apertures_struct *a,
 			(primary && gen_aper && gen_aper->count &&
 			 gen_aper->ranges[0].base = VGA_FB_PHYS)) {
 
-			printk(KERN_INFO "fb: switching to %s from %s\n",
-			       name, registered_fb[i]->fix.id);
+			printk(KERN_INFO "fb%d: switching to %s from %s\n",
+			       i, name, registered_fb[i]->fix.id);
 			ret = do_unregister_framebuffer(registered_fb[i]);
 			if (ret)
 				return ret;
-- 
2.18.0

[PATCH v2 01/12] fbdev: show fbdev number for debugging

[Michał Mirosław]

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/video/fbdev/core/fbmem.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c
index f741ba8df01b..30a18d4c9de4 100644
--- a/drivers/video/fbdev/core/fbmem.c
+++ b/drivers/video/fbdev/core/fbmem.c
@@ -1618,8 +1618,8 @@ static int do_remove_conflicting_framebuffers(struct apertures_struct *a,
 			(primary && gen_aper && gen_aper->count &&
 			 gen_aper->ranges[0].base == VGA_FB_PHYS)) {
 
-			printk(KERN_INFO "fb: switching to %s from %s\n",
-			       name, registered_fb[i]->fix.id);
+			printk(KERN_INFO "fb%d: switching to %s from %s\n",
+			       i, name, registered_fb[i]->fix.id);
 			ret = do_unregister_framebuffer(registered_fb[i]);
 			if (ret)
 				return ret;
-- 
2.18.0

_______________________________________________
Virtualization mailing list
Virtualization@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/virtualization

[PATCH v2 02/12] fbdev: allow apertures == NULL in remove_conflicting_framebuffers()

[Michał Mirosław]

Interpret (otherwise-invalid) NULL apertures argument to mean all-memory
range. This will allow to remove several duplicates of this code from
drivers in following patches.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
[for v1]
Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>

---
v2: added kerneldoc to corresponding DRM helper
---
 drivers/video/fbdev/core/fbmem.c | 14 ++++++++++++++
 include/drm/drm_fb_helper.h      | 10 ++++++++++
 2 files changed, 24 insertions(+)

diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c
index 30a18d4c9de4..0df148eb4699 100644
--- a/drivers/video/fbdev/core/fbmem.c
+++ b/drivers/video/fbdev/core/fbmem.c
@@ -1779,11 +1779,25 @@ int remove_conflicting_framebuffers(struct apertures_struct *a,
 				    const char *name, bool primary)
 {
 	int ret;
+	bool do_free = false;
+
+	if (!a) {
+		a = alloc_apertures(1);
+		if (!a)
+			return -ENOMEM;
+
+		a->ranges[0].base = 0;
+		a->ranges[0].size = ~0;
+		do_free = true;
+	}
 
 	mutex_lock(&registration_lock);
 	ret = do_remove_conflicting_framebuffers(a, name, primary);
 	mutex_unlock(&registration_lock);
 
+	if (do_free)
+		kfree(a);
+
 	return ret;
 }
 EXPORT_SYMBOL(remove_conflicting_framebuffers);
diff --git a/include/drm/drm_fb_helper.h b/include/drm/drm_fb_helper.h
index b069433e7fc1..1c1e53abb25d 100644
--- a/include/drm/drm_fb_helper.h
+++ b/include/drm/drm_fb_helper.h
@@ -566,6 +566,16 @@ static inline void drm_fb_helper_output_poll_changed(struct drm_device *dev)
 
 #endif
 
+/**
+ * drm_fb_helper_remove_conflicting_framebuffers - remove firmware framebuffers
+ * @a: memory range, users of which are to be removed
+ * @name: requesting driver name
+ * @primary: also kick vga16fb if present
+ *
+ * This function removes framebuffer devices (eg. initialized by firmware)
+ * which use memory range described by @a. If @a is NULL all such devices are
+ * removed.
+ */
 static inline int
 drm_fb_helper_remove_conflicting_framebuffers(struct apertures_struct *a,
 					      const char *name, bool primary)
-- 
2.18.0

_______________________________________________
Virtualization mailing list
Virtualization@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/virtualization

[PATCH v2 01/12] fbdev: show fbdev number for debugging

[Michał Mirosław]

Signed-off-by: Micha? Miros?aw <mirq-linux@rere.qmqm.pl>
Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/video/fbdev/core/fbmem.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c
index f741ba8df01b..30a18d4c9de4 100644
--- a/drivers/video/fbdev/core/fbmem.c
+++ b/drivers/video/fbdev/core/fbmem.c
@@ -1618,8 +1618,8 @@ static int do_remove_conflicting_framebuffers(struct apertures_struct *a,
 			(primary && gen_aper && gen_aper->count &&
 			 gen_aper->ranges[0].base == VGA_FB_PHYS)) {
 
-			printk(KERN_INFO "fb: switching to %s from %s\n",
-			       name, registered_fb[i]->fix.id);
+			printk(KERN_INFO "fb%d: switching to %s from %s\n",
+			       i, name, registered_fb[i]->fix.id);
 			ret = do_unregister_framebuffer(registered_fb[i]);
 			if (ret)
 				return ret;
-- 
2.18.0

[PATCH v2 02/12] fbdev: allow apertures == NULL in remove_conflicting_framebuffers()

[Michał Mirosław]

Interpret (otherwise-invalid) NULL apertures argument to mean all-memory
range. This will allow to remove several duplicates of this code from
drivers in following patches.

Signed-off-by: Micha? Miros?aw <mirq-linux@rere.qmqm.pl>
[for v1]
Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>

---
v2: added kerneldoc to corresponding DRM helper
---
 drivers/video/fbdev/core/fbmem.c | 14 ++++++++++++++
 include/drm/drm_fb_helper.h      | 10 ++++++++++
 2 files changed, 24 insertions(+)

diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c
index 30a18d4c9de4..0df148eb4699 100644
--- a/drivers/video/fbdev/core/fbmem.c
+++ b/drivers/video/fbdev/core/fbmem.c
@@ -1779,11 +1779,25 @@ int remove_conflicting_framebuffers(struct apertures_struct *a,
 				    const char *name, bool primary)
 {
 	int ret;
+	bool do_free = false;
+
+	if (!a) {
+		a = alloc_apertures(1);
+		if (!a)
+			return -ENOMEM;
+
+		a->ranges[0].base = 0;
+		a->ranges[0].size = ~0;
+		do_free = true;
+	}
 
 	mutex_lock(&registration_lock);
 	ret = do_remove_conflicting_framebuffers(a, name, primary);
 	mutex_unlock(&registration_lock);
 
+	if (do_free)
+		kfree(a);
+
 	return ret;
 }
 EXPORT_SYMBOL(remove_conflicting_framebuffers);
diff --git a/include/drm/drm_fb_helper.h b/include/drm/drm_fb_helper.h
index b069433e7fc1..1c1e53abb25d 100644
--- a/include/drm/drm_fb_helper.h
+++ b/include/drm/drm_fb_helper.h
@@ -566,6 +566,16 @@ static inline void drm_fb_helper_output_poll_changed(struct drm_device *dev)
 
 #endif
 
+/**
+ * drm_fb_helper_remove_conflicting_framebuffers - remove firmware framebuffers
+ * @a: memory range, users of which are to be removed
+ * @name: requesting driver name
+ * @primary: also kick vga16fb if present
+ *
+ * This function removes framebuffer devices (eg. initialized by firmware)
+ * which use memory range described by @a. If @a is NULL all such devices are
+ * removed.
+ */
 static inline int
 drm_fb_helper_remove_conflicting_framebuffers(struct apertures_struct *a,
 					      const char *name, bool primary)
-- 
2.18.0

[PATCH v2 04/12] drm/amdgpu: use simpler remove_conflicting_pci_framebuffers()

[Michał Mirosław]

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 24 +-----------------------
 1 file changed, 1 insertion(+), 23 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
index 0b19482b36b8..9b6e037719db 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
@@ -560,28 +560,6 @@ MODULE_DEVICE_TABLE(pci, pciidlist);
 
 static struct drm_driver kms_driver;
 
-static int amdgpu_kick_out_firmware_fb(struct pci_dev *pdev)
-{
-	struct apertures_struct *ap;
-	bool primary = false;
-
-	ap = alloc_apertures(1);
-	if (!ap)
-		return -ENOMEM;
-
-	ap->ranges[0].base = pci_resource_start(pdev, 0);
-	ap->ranges[0].size = pci_resource_len(pdev, 0);
-
-#ifdef CONFIG_X86
-	primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
-#endif
-	drm_fb_helper_remove_conflicting_framebuffers(ap, "amdgpudrmfb", primary);
-	kfree(ap);
-
-	return 0;
-}
-
-
 static int amdgpu_pci_probe(struct pci_dev *pdev,
 			    const struct pci_device_id *ent)
 {
@@ -609,7 +587,7 @@ static int amdgpu_pci_probe(struct pci_dev *pdev,
 		return ret;
 
 	/* Get rid of things like offb */
-	ret = amdgpu_kick_out_firmware_fb(pdev);
+	ret = drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, 0, "amdgpudrmfb");
 	if (ret)
 		return ret;
 
-- 
2.18.0


_______________________________________________
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linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

[PATCH v2 03/12] fbdev: add remove_conflicting_pci_framebuffers()

[Michał Mirosław]

Almost all PCI drivers using remove_conflicting_framebuffers() wrap it
with the same code.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
[for v1]
Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>

---
v2: add kerneldoc for DRM helper
---
 drivers/video/fbdev/core/fbmem.c | 22 ++++++++++++++++++++++
 include/drm/drm_fb_helper.h      | 24 ++++++++++++++++++++++++
 include/linux/fb.h               |  2 ++
 3 files changed, 48 insertions(+)

diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c
index 0df148eb4699..927e016487e9 100644
--- a/drivers/video/fbdev/core/fbmem.c
+++ b/drivers/video/fbdev/core/fbmem.c
@@ -34,6 +34,7 @@
 #include <linux/fb.h>
 #include <linux/fbcon.h>
 #include <linux/mem_encrypt.h>
+#include <linux/pci.h>
 
 #include <asm/fb.h>
 
@@ -1802,6 +1803,27 @@ int remove_conflicting_framebuffers(struct apertures_struct *a,
 }
 EXPORT_SYMBOL(remove_conflicting_framebuffers);
 
+int remove_conflicting_pci_framebuffers(struct pci_dev *pdev, int res_id, const char *name)
+{
+	struct apertures_struct *ap;
+	bool primary = false;
+
+	ap = alloc_apertures(1);
+	if (!ap)
+		return -ENOMEM;
+
+	ap->ranges[0].base = pci_resource_start(pdev, res_id);
+	ap->ranges[0].size = pci_resource_len(pdev, res_id);
+#ifdef CONFIG_X86
+	primary = pdev->resource[PCI_ROM_RESOURCE].flags &
+					IORESOURCE_ROM_SHADOW;
+#endif
+	remove_conflicting_framebuffers(ap, name, primary);
+	kfree(ap);
+	return 0;
+}
+EXPORT_SYMBOL(remove_conflicting_pci_framebuffers);
+
 /**
  *	register_framebuffer - registers a frame buffer device
  *	@fb_info: frame buffer info structure
diff --git a/include/drm/drm_fb_helper.h b/include/drm/drm_fb_helper.h
index 1c1e53abb25d..6e1fc52d1b1b 100644
--- a/include/drm/drm_fb_helper.h
+++ b/include/drm/drm_fb_helper.h
@@ -587,4 +587,28 @@ drm_fb_helper_remove_conflicting_framebuffers(struct apertures_struct *a,
 #endif
 }
 
+/**
+ * drm_fb_helper_remove_conflicting_framebuffers - remove firmware framebuffers for PCI devices
+ * @pdev: PCI device being driven
+ * @resource_id: index of PCI BAR configuring framebuffer memory
+ * @name: requesting driver name
+ *
+ * This function removes framebuffer devices (eg. initialized by firmware)
+ * using memory range configured for @pdev's BAR @resource_id.
+ *
+ * The function assumes that PCI device with shadowed ROM is drives a primary
+ * display and so kicks out vga16fb.
+ */
+static inline int
+drm_fb_helper_remove_conflicting_pci_framebuffers(struct pci_dev *pdev,
+						  int resource_id,
+						  const char *name)
+{
+#if IS_REACHABLE(CONFIG_FB)
+	return remove_conflicting_pci_framebuffers(pdev, resource_id, name);
+#else
+	return 0;
+#endif
+}
+
 #endif
diff --git a/include/linux/fb.h b/include/linux/fb.h
index aa74a228bb92..abeffd55b66a 100644
--- a/include/linux/fb.h
+++ b/include/linux/fb.h
@@ -632,6 +632,8 @@ extern ssize_t fb_sys_write(struct fb_info *info, const char __user *buf,
 extern int register_framebuffer(struct fb_info *fb_info);
 extern int unregister_framebuffer(struct fb_info *fb_info);
 extern int unlink_framebuffer(struct fb_info *fb_info);
+extern int remove_conflicting_pci_framebuffers(struct pci_dev *pdev, int res_id,
+					       const char *name);
 extern int remove_conflicting_framebuffers(struct apertures_struct *a,
 					   const char *name, bool primary);
 extern int fb_prepare_logo(struct fb_info *fb_info, int rotate);
-- 
2.18.0


_______________________________________________
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linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

[PATCH v2 03/12] fbdev: add remove_conflicting_pci_framebuffers()

[Michał Mirosław]

Almost all PCI drivers using remove_conflicting_framebuffers() wrap it
with the same code.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
[for v1]
Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>

---
v2: add kerneldoc for DRM helper
---
 drivers/video/fbdev/core/fbmem.c | 22 ++++++++++++++++++++++
 include/drm/drm_fb_helper.h      | 24 ++++++++++++++++++++++++
 include/linux/fb.h               |  2 ++
 3 files changed, 48 insertions(+)

diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c
index 0df148eb4699..927e016487e9 100644
--- a/drivers/video/fbdev/core/fbmem.c
+++ b/drivers/video/fbdev/core/fbmem.c
@@ -34,6 +34,7 @@
 #include <linux/fb.h>
 #include <linux/fbcon.h>
 #include <linux/mem_encrypt.h>
+#include <linux/pci.h>
 
 #include <asm/fb.h>
 
@@ -1802,6 +1803,27 @@ int remove_conflicting_framebuffers(struct apertures_struct *a,
 }
 EXPORT_SYMBOL(remove_conflicting_framebuffers);
 
+int remove_conflicting_pci_framebuffers(struct pci_dev *pdev, int res_id, const char *name)
+{
+	struct apertures_struct *ap;
+	bool primary = false;
+
+	ap = alloc_apertures(1);
+	if (!ap)
+		return -ENOMEM;
+
+	ap->ranges[0].base = pci_resource_start(pdev, res_id);
+	ap->ranges[0].size = pci_resource_len(pdev, res_id);
+#ifdef CONFIG_X86
+	primary = pdev->resource[PCI_ROM_RESOURCE].flags &
+					IORESOURCE_ROM_SHADOW;
+#endif
+	remove_conflicting_framebuffers(ap, name, primary);
+	kfree(ap);
+	return 0;
+}
+EXPORT_SYMBOL(remove_conflicting_pci_framebuffers);
+
 /**
  *	register_framebuffer - registers a frame buffer device
  *	@fb_info: frame buffer info structure
diff --git a/include/drm/drm_fb_helper.h b/include/drm/drm_fb_helper.h
index 1c1e53abb25d..6e1fc52d1b1b 100644
--- a/include/drm/drm_fb_helper.h
+++ b/include/drm/drm_fb_helper.h
@@ -587,4 +587,28 @@ drm_fb_helper_remove_conflicting_framebuffers(struct apertures_struct *a,
 #endif
 }
 
+/**
+ * drm_fb_helper_remove_conflicting_framebuffers - remove firmware framebuffers for PCI devices
+ * @pdev: PCI device being driven
+ * @resource_id: index of PCI BAR configuring framebuffer memory
+ * @name: requesting driver name
+ *
+ * This function removes framebuffer devices (eg. initialized by firmware)
+ * using memory range configured for @pdev's BAR @resource_id.
+ *
+ * The function assumes that PCI device with shadowed ROM is drives a primary
+ * display and so kicks out vga16fb.
+ */
+static inline int
+drm_fb_helper_remove_conflicting_pci_framebuffers(struct pci_dev *pdev,
+						  int resource_id,
+						  const char *name)
+{
+#if IS_REACHABLE(CONFIG_FB)
+	return remove_conflicting_pci_framebuffers(pdev, resource_id, name);
+#else
+	return 0;
+#endif
+}
+
 #endif
diff --git a/include/linux/fb.h b/include/linux/fb.h
index aa74a228bb92..abeffd55b66a 100644
--- a/include/linux/fb.h
+++ b/include/linux/fb.h
@@ -632,6 +632,8 @@ extern ssize_t fb_sys_write(struct fb_info *info, const char __user *buf,
 extern int register_framebuffer(struct fb_info *fb_info);
 extern int unregister_framebuffer(struct fb_info *fb_info);
 extern int unlink_framebuffer(struct fb_info *fb_info);
+extern int remove_conflicting_pci_framebuffers(struct pci_dev *pdev, int res_id,
+					       const char *name);
 extern int remove_conflicting_framebuffers(struct apertures_struct *a,
 					   const char *name, bool primary);
 extern int fb_prepare_logo(struct fb_info *fb_info, int rotate);
-- 
2.18.0

[PATCH v2 04/12] drm/amdgpu: use simpler remove_conflicting_pci_framebuffers()

[Michał Mirosław]

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 24 +-----------------------
 1 file changed, 1 insertion(+), 23 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
index 0b19482b36b8..9b6e037719db 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
@@ -560,28 +560,6 @@ MODULE_DEVICE_TABLE(pci, pciidlist);
 
 static struct drm_driver kms_driver;
 
-static int amdgpu_kick_out_firmware_fb(struct pci_dev *pdev)
-{
-	struct apertures_struct *ap;
-	bool primary = false;
-
-	ap = alloc_apertures(1);
-	if (!ap)
-		return -ENOMEM;
-
-	ap->ranges[0].base = pci_resource_start(pdev, 0);
-	ap->ranges[0].size = pci_resource_len(pdev, 0);
-
-#ifdef CONFIG_X86
-	primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
-#endif
-	drm_fb_helper_remove_conflicting_framebuffers(ap, "amdgpudrmfb", primary);
-	kfree(ap);
-
-	return 0;
-}
-
-
 static int amdgpu_pci_probe(struct pci_dev *pdev,
 			    const struct pci_device_id *ent)
 {
@@ -609,7 +587,7 @@ static int amdgpu_pci_probe(struct pci_dev *pdev,
 		return ret;
 
 	/* Get rid of things like offb */
-	ret = amdgpu_kick_out_firmware_fb(pdev);
+	ret = drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, 0, "amdgpudrmfb");
 	if (ret)
 		return ret;
 
-- 
2.18.0

[PATCH v2 03/12] fbdev: add remove_conflicting_pci_framebuffers()

[Michał Mirosław]

Almost all PCI drivers using remove_conflicting_framebuffers() wrap it
with the same code.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
[for v1]
Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>

---
v2: add kerneldoc for DRM helper
---
 drivers/video/fbdev/core/fbmem.c | 22 ++++++++++++++++++++++
 include/drm/drm_fb_helper.h      | 24 ++++++++++++++++++++++++
 include/linux/fb.h               |  2 ++
 3 files changed, 48 insertions(+)

diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c
index 0df148eb4699..927e016487e9 100644
--- a/drivers/video/fbdev/core/fbmem.c
+++ b/drivers/video/fbdev/core/fbmem.c
@@ -34,6 +34,7 @@
 #include <linux/fb.h>
 #include <linux/fbcon.h>
 #include <linux/mem_encrypt.h>
+#include <linux/pci.h>
 
 #include <asm/fb.h>
 
@@ -1802,6 +1803,27 @@ int remove_conflicting_framebuffers(struct apertures_struct *a,
 }
 EXPORT_SYMBOL(remove_conflicting_framebuffers);
 
+int remove_conflicting_pci_framebuffers(struct pci_dev *pdev, int res_id, const char *name)
+{
+	struct apertures_struct *ap;
+	bool primary = false;
+
+	ap = alloc_apertures(1);
+	if (!ap)
+		return -ENOMEM;
+
+	ap->ranges[0].base = pci_resource_start(pdev, res_id);
+	ap->ranges[0].size = pci_resource_len(pdev, res_id);
+#ifdef CONFIG_X86
+	primary = pdev->resource[PCI_ROM_RESOURCE].flags &
+					IORESOURCE_ROM_SHADOW;
+#endif
+	remove_conflicting_framebuffers(ap, name, primary);
+	kfree(ap);
+	return 0;
+}
+EXPORT_SYMBOL(remove_conflicting_pci_framebuffers);
+
 /**
  *	register_framebuffer - registers a frame buffer device
  *	@fb_info: frame buffer info structure
diff --git a/include/drm/drm_fb_helper.h b/include/drm/drm_fb_helper.h
index 1c1e53abb25d..6e1fc52d1b1b 100644
--- a/include/drm/drm_fb_helper.h
+++ b/include/drm/drm_fb_helper.h
@@ -587,4 +587,28 @@ drm_fb_helper_remove_conflicting_framebuffers(struct apertures_struct *a,
 #endif
 }
 
+/**
+ * drm_fb_helper_remove_conflicting_framebuffers - remove firmware framebuffers for PCI devices
+ * @pdev: PCI device being driven
+ * @resource_id: index of PCI BAR configuring framebuffer memory
+ * @name: requesting driver name
+ *
+ * This function removes framebuffer devices (eg. initialized by firmware)
+ * using memory range configured for @pdev's BAR @resource_id.
+ *
+ * The function assumes that PCI device with shadowed ROM is drives a primary
+ * display and so kicks out vga16fb.
+ */
+static inline int
+drm_fb_helper_remove_conflicting_pci_framebuffers(struct pci_dev *pdev,
+						  int resource_id,
+						  const char *name)
+{
+#if IS_REACHABLE(CONFIG_FB)
+	return remove_conflicting_pci_framebuffers(pdev, resource_id, name);
+#else
+	return 0;
+#endif
+}
+
 #endif
diff --git a/include/linux/fb.h b/include/linux/fb.h
index aa74a228bb92..abeffd55b66a 100644
--- a/include/linux/fb.h
+++ b/include/linux/fb.h
@@ -632,6 +632,8 @@ extern ssize_t fb_sys_write(struct fb_info *info, const char __user *buf,
 extern int register_framebuffer(struct fb_info *fb_info);
 extern int unregister_framebuffer(struct fb_info *fb_info);
 extern int unlink_framebuffer(struct fb_info *fb_info);
+extern int remove_conflicting_pci_framebuffers(struct pci_dev *pdev, int res_id,
+					       const char *name);
 extern int remove_conflicting_framebuffers(struct apertures_struct *a,
 					   const char *name, bool primary);
 extern int fb_prepare_logo(struct fb_info *fb_info, int rotate);
-- 
2.18.0

_______________________________________________
Virtualization mailing list
Virtualization@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/virtualization

[PATCH v2 04/12] drm/amdgpu: use simpler remove_conflicting_pci_framebuffers()

[Michał Mirosław]

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 24 +-----------------------
 1 file changed, 1 insertion(+), 23 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
index 0b19482b36b8..9b6e037719db 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
@@ -560,28 +560,6 @@ MODULE_DEVICE_TABLE(pci, pciidlist);
 
 static struct drm_driver kms_driver;
 
-static int amdgpu_kick_out_firmware_fb(struct pci_dev *pdev)
-{
-	struct apertures_struct *ap;
-	bool primary = false;
-
-	ap = alloc_apertures(1);
-	if (!ap)
-		return -ENOMEM;
-
-	ap->ranges[0].base = pci_resource_start(pdev, 0);
-	ap->ranges[0].size = pci_resource_len(pdev, 0);
-
-#ifdef CONFIG_X86
-	primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
-#endif
-	drm_fb_helper_remove_conflicting_framebuffers(ap, "amdgpudrmfb", primary);
-	kfree(ap);
-
-	return 0;
-}
-
-
 static int amdgpu_pci_probe(struct pci_dev *pdev,
 			    const struct pci_device_id *ent)
 {
@@ -609,7 +587,7 @@ static int amdgpu_pci_probe(struct pci_dev *pdev,
 		return ret;
 
 	/* Get rid of things like offb */
-	ret = amdgpu_kick_out_firmware_fb(pdev);
+	ret = drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, 0, "amdgpudrmfb");
 	if (ret)
 		return ret;
 
-- 
2.18.0

_______________________________________________
Virtualization mailing list
Virtualization@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/virtualization

[PATCH v2 04/12] drm/amdgpu: use simpler remove_conflicting_pci_framebuffers()

[Michał Mirosław]

Signed-off-by: Micha? Miros?aw <mirq-linux@rere.qmqm.pl>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 24 +-----------------------
 1 file changed, 1 insertion(+), 23 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
index 0b19482b36b8..9b6e037719db 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
@@ -560,28 +560,6 @@ MODULE_DEVICE_TABLE(pci, pciidlist);
 
 static struct drm_driver kms_driver;
 
-static int amdgpu_kick_out_firmware_fb(struct pci_dev *pdev)
-{
-	struct apertures_struct *ap;
-	bool primary = false;
-
-	ap = alloc_apertures(1);
-	if (!ap)
-		return -ENOMEM;
-
-	ap->ranges[0].base = pci_resource_start(pdev, 0);
-	ap->ranges[0].size = pci_resource_len(pdev, 0);
-
-#ifdef CONFIG_X86
-	primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
-#endif
-	drm_fb_helper_remove_conflicting_framebuffers(ap, "amdgpudrmfb", primary);
-	kfree(ap);
-
-	return 0;
-}
-
-
 static int amdgpu_pci_probe(struct pci_dev *pdev,
 			    const struct pci_device_id *ent)
 {
@@ -609,7 +587,7 @@ static int amdgpu_pci_probe(struct pci_dev *pdev,
 		return ret;
 
 	/* Get rid of things like offb */
-	ret = amdgpu_kick_out_firmware_fb(pdev);
+	ret = drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, 0, "amdgpudrmfb");
 	if (ret)
 		return ret;
 
-- 
2.18.0

[PATCH v2 03/12] fbdev: add remove_conflicting_pci_framebuffers()

[Michał Mirosław]

Almost all PCI drivers using remove_conflicting_framebuffers() wrap it
with the same code.

Signed-off-by: Micha? Miros?aw <mirq-linux@rere.qmqm.pl>
[for v1]
Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>

---
v2: add kerneldoc for DRM helper
---
 drivers/video/fbdev/core/fbmem.c | 22 ++++++++++++++++++++++
 include/drm/drm_fb_helper.h      | 24 ++++++++++++++++++++++++
 include/linux/fb.h               |  2 ++
 3 files changed, 48 insertions(+)

diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c
index 0df148eb4699..927e016487e9 100644
--- a/drivers/video/fbdev/core/fbmem.c
+++ b/drivers/video/fbdev/core/fbmem.c
@@ -34,6 +34,7 @@
 #include <linux/fb.h>
 #include <linux/fbcon.h>
 #include <linux/mem_encrypt.h>
+#include <linux/pci.h>
 
 #include <asm/fb.h>
 
@@ -1802,6 +1803,27 @@ int remove_conflicting_framebuffers(struct apertures_struct *a,
 }
 EXPORT_SYMBOL(remove_conflicting_framebuffers);
 
+int remove_conflicting_pci_framebuffers(struct pci_dev *pdev, int res_id, const char *name)
+{
+	struct apertures_struct *ap;
+	bool primary = false;
+
+	ap = alloc_apertures(1);
+	if (!ap)
+		return -ENOMEM;
+
+	ap->ranges[0].base = pci_resource_start(pdev, res_id);
+	ap->ranges[0].size = pci_resource_len(pdev, res_id);
+#ifdef CONFIG_X86
+	primary = pdev->resource[PCI_ROM_RESOURCE].flags &
+					IORESOURCE_ROM_SHADOW;
+#endif
+	remove_conflicting_framebuffers(ap, name, primary);
+	kfree(ap);
+	return 0;
+}
+EXPORT_SYMBOL(remove_conflicting_pci_framebuffers);
+
 /**
  *	register_framebuffer - registers a frame buffer device
  *	@fb_info: frame buffer info structure
diff --git a/include/drm/drm_fb_helper.h b/include/drm/drm_fb_helper.h
index 1c1e53abb25d..6e1fc52d1b1b 100644
--- a/include/drm/drm_fb_helper.h
+++ b/include/drm/drm_fb_helper.h
@@ -587,4 +587,28 @@ drm_fb_helper_remove_conflicting_framebuffers(struct apertures_struct *a,
 #endif
 }
 
+/**
+ * drm_fb_helper_remove_conflicting_framebuffers - remove firmware framebuffers for PCI devices
+ * @pdev: PCI device being driven
+ * @resource_id: index of PCI BAR configuring framebuffer memory
+ * @name: requesting driver name
+ *
+ * This function removes framebuffer devices (eg. initialized by firmware)
+ * using memory range configured for @pdev's BAR @resource_id.
+ *
+ * The function assumes that PCI device with shadowed ROM is drives a primary
+ * display and so kicks out vga16fb.
+ */
+static inline int
+drm_fb_helper_remove_conflicting_pci_framebuffers(struct pci_dev *pdev,
+						  int resource_id,
+						  const char *name)
+{
+#if IS_REACHABLE(CONFIG_FB)
+	return remove_conflicting_pci_framebuffers(pdev, resource_id, name);
+#else
+	return 0;
+#endif
+}
+
 #endif
diff --git a/include/linux/fb.h b/include/linux/fb.h
index aa74a228bb92..abeffd55b66a 100644
--- a/include/linux/fb.h
+++ b/include/linux/fb.h
@@ -632,6 +632,8 @@ extern ssize_t fb_sys_write(struct fb_info *info, const char __user *buf,
 extern int register_framebuffer(struct fb_info *fb_info);
 extern int unregister_framebuffer(struct fb_info *fb_info);
 extern int unlink_framebuffer(struct fb_info *fb_info);
+extern int remove_conflicting_pci_framebuffers(struct pci_dev *pdev, int res_id,
+					       const char *name);
 extern int remove_conflicting_framebuffers(struct apertures_struct *a,
 					   const char *name, bool primary);
 extern int fb_prepare_logo(struct fb_info *fb_info, int rotate);
-- 
2.18.0

[PATCH v2 06/12] drm/cirrus: use simpler remove_conflicting_pci_framebuffers()

[Michał Mirosław]

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/cirrus/cirrus_drv.c | 23 +----------------------
 1 file changed, 1 insertion(+), 22 deletions(-)

diff --git a/drivers/gpu/drm/cirrus/cirrus_drv.c b/drivers/gpu/drm/cirrus/cirrus_drv.c
index 69c4e352dd78..85ed8657c862 100644
--- a/drivers/gpu/drm/cirrus/cirrus_drv.c
+++ b/drivers/gpu/drm/cirrus/cirrus_drv.c
@@ -42,33 +42,12 @@ static const struct pci_device_id pciidlist[] = {
 };
 
 
-static int cirrus_kick_out_firmware_fb(struct pci_dev *pdev)
-{
-	struct apertures_struct *ap;
-	bool primary = false;
-
-	ap = alloc_apertures(1);
-	if (!ap)
-		return -ENOMEM;
-
-	ap->ranges[0].base = pci_resource_start(pdev, 0);
-	ap->ranges[0].size = pci_resource_len(pdev, 0);
-
-#ifdef CONFIG_X86
-	primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
-#endif
-	drm_fb_helper_remove_conflicting_framebuffers(ap, "cirrusdrmfb", primary);
-	kfree(ap);
-
-	return 0;
-}
-
 static int cirrus_pci_probe(struct pci_dev *pdev,
 			    const struct pci_device_id *ent)
 {
 	int ret;
 
-	ret = cirrus_kick_out_firmware_fb(pdev);
+	ret = drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, 0, "cirrusdrmfb");
 	if (ret)
 		return ret;
 
-- 
2.18.0


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http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

[PATCH v2 05/12] drm/bochs: use simpler remove_conflicting_pci_framebuffers()

[Michał Mirosław]

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/bochs/bochs_drv.c | 18 +-----------------
 1 file changed, 1 insertion(+), 17 deletions(-)

diff --git a/drivers/gpu/drm/bochs/bochs_drv.c b/drivers/gpu/drm/bochs/bochs_drv.c
index 7b20318483e4..c61b40c72b62 100644
--- a/drivers/gpu/drm/bochs/bochs_drv.c
+++ b/drivers/gpu/drm/bochs/bochs_drv.c
@@ -143,22 +143,6 @@ static const struct dev_pm_ops bochs_pm_ops = {
 /* ---------------------------------------------------------------------- */
 /* pci interface                                                          */
 
-static int bochs_kick_out_firmware_fb(struct pci_dev *pdev)
-{
-	struct apertures_struct *ap;
-
-	ap = alloc_apertures(1);
-	if (!ap)
-		return -ENOMEM;
-
-	ap->ranges[0].base = pci_resource_start(pdev, 0);
-	ap->ranges[0].size = pci_resource_len(pdev, 0);
-	drm_fb_helper_remove_conflicting_framebuffers(ap, "bochsdrmfb", false);
-	kfree(ap);
-
-	return 0;
-}
-
 static int bochs_pci_probe(struct pci_dev *pdev,
 			   const struct pci_device_id *ent)
 {
@@ -171,7 +155,7 @@ static int bochs_pci_probe(struct pci_dev *pdev,
 		return -ENOMEM;
 	}
 
-	ret = bochs_kick_out_firmware_fb(pdev);
+	ret = drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, 0, "bochsdrmfb");
 	if (ret)
 		return ret;
 
-- 
2.18.0


_______________________________________________
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http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

[PATCH v2 05/12] drm/bochs: use simpler remove_conflicting_pci_framebuffers()

[Michał Mirosław]

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/bochs/bochs_drv.c | 18 +-----------------
 1 file changed, 1 insertion(+), 17 deletions(-)

diff --git a/drivers/gpu/drm/bochs/bochs_drv.c b/drivers/gpu/drm/bochs/bochs_drv.c
index 7b20318483e4..c61b40c72b62 100644
--- a/drivers/gpu/drm/bochs/bochs_drv.c
+++ b/drivers/gpu/drm/bochs/bochs_drv.c
@@ -143,22 +143,6 @@ static const struct dev_pm_ops bochs_pm_ops = {
 /* ---------------------------------------------------------------------- */
 /* pci interface                                                          */
 
-static int bochs_kick_out_firmware_fb(struct pci_dev *pdev)
-{
-	struct apertures_struct *ap;
-
-	ap = alloc_apertures(1);
-	if (!ap)
-		return -ENOMEM;
-
-	ap->ranges[0].base = pci_resource_start(pdev, 0);
-	ap->ranges[0].size = pci_resource_len(pdev, 0);
-	drm_fb_helper_remove_conflicting_framebuffers(ap, "bochsdrmfb", false);
-	kfree(ap);
-
-	return 0;
-}
-
 static int bochs_pci_probe(struct pci_dev *pdev,
 			   const struct pci_device_id *ent)
 {
@@ -171,7 +155,7 @@ static int bochs_pci_probe(struct pci_dev *pdev,
 		return -ENOMEM;
 	}
 
-	ret = bochs_kick_out_firmware_fb(pdev);
+	ret = drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, 0, "bochsdrmfb");
 	if (ret)
 		return ret;
 
-- 
2.18.0

[PATCH v2 06/12] drm/cirrus: use simpler remove_conflicting_pci_framebuffers()

[Michał Mirosław]

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/cirrus/cirrus_drv.c | 23 +----------------------
 1 file changed, 1 insertion(+), 22 deletions(-)

diff --git a/drivers/gpu/drm/cirrus/cirrus_drv.c b/drivers/gpu/drm/cirrus/cirrus_drv.c
index 69c4e352dd78..85ed8657c862 100644
--- a/drivers/gpu/drm/cirrus/cirrus_drv.c
+++ b/drivers/gpu/drm/cirrus/cirrus_drv.c
@@ -42,33 +42,12 @@ static const struct pci_device_id pciidlist[] = {
 };
 
 
-static int cirrus_kick_out_firmware_fb(struct pci_dev *pdev)
-{
-	struct apertures_struct *ap;
-	bool primary = false;
-
-	ap = alloc_apertures(1);
-	if (!ap)
-		return -ENOMEM;
-
-	ap->ranges[0].base = pci_resource_start(pdev, 0);
-	ap->ranges[0].size = pci_resource_len(pdev, 0);
-
-#ifdef CONFIG_X86
-	primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
-#endif
-	drm_fb_helper_remove_conflicting_framebuffers(ap, "cirrusdrmfb", primary);
-	kfree(ap);
-
-	return 0;
-}
-
 static int cirrus_pci_probe(struct pci_dev *pdev,
 			    const struct pci_device_id *ent)
 {
 	int ret;
 
-	ret = cirrus_kick_out_firmware_fb(pdev);
+	ret = drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, 0, "cirrusdrmfb");
 	if (ret)
 		return ret;
 
-- 
2.18.0

[PATCH v2 06/12] drm/cirrus: use simpler remove_conflicting_pci_framebuffers()

[Michał Mirosław]

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/cirrus/cirrus_drv.c | 23 +----------------------
 1 file changed, 1 insertion(+), 22 deletions(-)

diff --git a/drivers/gpu/drm/cirrus/cirrus_drv.c b/drivers/gpu/drm/cirrus/cirrus_drv.c
index 69c4e352dd78..85ed8657c862 100644
--- a/drivers/gpu/drm/cirrus/cirrus_drv.c
+++ b/drivers/gpu/drm/cirrus/cirrus_drv.c
@@ -42,33 +42,12 @@ static const struct pci_device_id pciidlist[] = {
 };
 
 
-static int cirrus_kick_out_firmware_fb(struct pci_dev *pdev)
-{
-	struct apertures_struct *ap;
-	bool primary = false;
-
-	ap = alloc_apertures(1);
-	if (!ap)
-		return -ENOMEM;
-
-	ap->ranges[0].base = pci_resource_start(pdev, 0);
-	ap->ranges[0].size = pci_resource_len(pdev, 0);
-
-#ifdef CONFIG_X86
-	primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
-#endif
-	drm_fb_helper_remove_conflicting_framebuffers(ap, "cirrusdrmfb", primary);
-	kfree(ap);
-
-	return 0;
-}
-
 static int cirrus_pci_probe(struct pci_dev *pdev,
 			    const struct pci_device_id *ent)
 {
 	int ret;
 
-	ret = cirrus_kick_out_firmware_fb(pdev);
+	ret = drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, 0, "cirrusdrmfb");
 	if (ret)
 		return ret;
 
-- 
2.18.0

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Virtualization@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/virtualization

[PATCH v2 05/12] drm/bochs: use simpler remove_conflicting_pci_framebuffers()

[Michał Mirosław]

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/bochs/bochs_drv.c | 18 +-----------------
 1 file changed, 1 insertion(+), 17 deletions(-)

diff --git a/drivers/gpu/drm/bochs/bochs_drv.c b/drivers/gpu/drm/bochs/bochs_drv.c
index 7b20318483e4..c61b40c72b62 100644
--- a/drivers/gpu/drm/bochs/bochs_drv.c
+++ b/drivers/gpu/drm/bochs/bochs_drv.c
@@ -143,22 +143,6 @@ static const struct dev_pm_ops bochs_pm_ops = {
 /* ---------------------------------------------------------------------- */
 /* pci interface                                                          */
 
-static int bochs_kick_out_firmware_fb(struct pci_dev *pdev)
-{
-	struct apertures_struct *ap;
-
-	ap = alloc_apertures(1);
-	if (!ap)
-		return -ENOMEM;
-
-	ap->ranges[0].base = pci_resource_start(pdev, 0);
-	ap->ranges[0].size = pci_resource_len(pdev, 0);
-	drm_fb_helper_remove_conflicting_framebuffers(ap, "bochsdrmfb", false);
-	kfree(ap);
-
-	return 0;
-}
-
 static int bochs_pci_probe(struct pci_dev *pdev,
 			   const struct pci_device_id *ent)
 {
@@ -171,7 +155,7 @@ static int bochs_pci_probe(struct pci_dev *pdev,
 		return -ENOMEM;
 	}
 
-	ret = bochs_kick_out_firmware_fb(pdev);
+	ret = drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, 0, "bochsdrmfb");
 	if (ret)
 		return ret;
 
-- 
2.18.0

_______________________________________________
Virtualization mailing list
Virtualization@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/virtualization

[PATCH v2 06/12] drm/cirrus: use simpler remove_conflicting_pci_framebuffers()

[Michał Mirosław]

Signed-off-by: Micha? Miros?aw <mirq-linux@rere.qmqm.pl>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/cirrus/cirrus_drv.c | 23 +----------------------
 1 file changed, 1 insertion(+), 22 deletions(-)

diff --git a/drivers/gpu/drm/cirrus/cirrus_drv.c b/drivers/gpu/drm/cirrus/cirrus_drv.c
index 69c4e352dd78..85ed8657c862 100644
--- a/drivers/gpu/drm/cirrus/cirrus_drv.c
+++ b/drivers/gpu/drm/cirrus/cirrus_drv.c
@@ -42,33 +42,12 @@ static const struct pci_device_id pciidlist[] = {
 };
 
 
-static int cirrus_kick_out_firmware_fb(struct pci_dev *pdev)
-{
-	struct apertures_struct *ap;
-	bool primary = false;
-
-	ap = alloc_apertures(1);
-	if (!ap)
-		return -ENOMEM;
-
-	ap->ranges[0].base = pci_resource_start(pdev, 0);
-	ap->ranges[0].size = pci_resource_len(pdev, 0);
-
-#ifdef CONFIG_X86
-	primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
-#endif
-	drm_fb_helper_remove_conflicting_framebuffers(ap, "cirrusdrmfb", primary);
-	kfree(ap);
-
-	return 0;
-}
-
 static int cirrus_pci_probe(struct pci_dev *pdev,
 			    const struct pci_device_id *ent)
 {
 	int ret;
 
-	ret = cirrus_kick_out_firmware_fb(pdev);
+	ret = drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, 0, "cirrusdrmfb");
 	if (ret)
 		return ret;
 
-- 
2.18.0

[PATCH v2 05/12] drm/bochs: use simpler remove_conflicting_pci_framebuffers()

[Michał Mirosław]

Signed-off-by: Micha? Miros?aw <mirq-linux@rere.qmqm.pl>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/bochs/bochs_drv.c | 18 +-----------------
 1 file changed, 1 insertion(+), 17 deletions(-)

diff --git a/drivers/gpu/drm/bochs/bochs_drv.c b/drivers/gpu/drm/bochs/bochs_drv.c
index 7b20318483e4..c61b40c72b62 100644
--- a/drivers/gpu/drm/bochs/bochs_drv.c
+++ b/drivers/gpu/drm/bochs/bochs_drv.c
@@ -143,22 +143,6 @@ static const struct dev_pm_ops bochs_pm_ops = {
 /* ---------------------------------------------------------------------- */
 /* pci interface                                                          */
 
-static int bochs_kick_out_firmware_fb(struct pci_dev *pdev)
-{
-	struct apertures_struct *ap;
-
-	ap = alloc_apertures(1);
-	if (!ap)
-		return -ENOMEM;
-
-	ap->ranges[0].base = pci_resource_start(pdev, 0);
-	ap->ranges[0].size = pci_resource_len(pdev, 0);
-	drm_fb_helper_remove_conflicting_framebuffers(ap, "bochsdrmfb", false);
-	kfree(ap);
-
-	return 0;
-}
-
 static int bochs_pci_probe(struct pci_dev *pdev,
 			   const struct pci_device_id *ent)
 {
@@ -171,7 +155,7 @@ static int bochs_pci_probe(struct pci_dev *pdev,
 		return -ENOMEM;
 	}
 
-	ret = bochs_kick_out_firmware_fb(pdev);
+	ret = drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, 0, "bochsdrmfb");
 	if (ret)
 		return ret;
 
-- 
2.18.0

[PATCH v2 08/12] drm/radeon: use simpler remove_conflicting_pci_framebuffers()

[Michał Mirosław]

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/radeon/radeon_drv.c | 23 +----------------------
 1 file changed, 1 insertion(+), 22 deletions(-)

diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c
index b28288a781ef..36c98a0ec991 100644
--- a/drivers/gpu/drm/radeon/radeon_drv.c
+++ b/drivers/gpu/drm/radeon/radeon_drv.c
@@ -311,27 +311,6 @@ static struct drm_driver kms_driver;
 
 bool radeon_device_is_virtual(void);
 
-static int radeon_kick_out_firmware_fb(struct pci_dev *pdev)
-{
-	struct apertures_struct *ap;
-	bool primary = false;
-
-	ap = alloc_apertures(1);
-	if (!ap)
-		return -ENOMEM;
-
-	ap->ranges[0].base = pci_resource_start(pdev, 0);
-	ap->ranges[0].size = pci_resource_len(pdev, 0);
-
-#ifdef CONFIG_X86
-	primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
-#endif
-	drm_fb_helper_remove_conflicting_framebuffers(ap, "radeondrmfb", primary);
-	kfree(ap);
-
-	return 0;
-}
-
 static int radeon_pci_probe(struct pci_dev *pdev,
 			    const struct pci_device_id *ent)
 {
@@ -341,7 +320,7 @@ static int radeon_pci_probe(struct pci_dev *pdev,
 		return -EPROBE_DEFER;
 
 	/* Get rid of things like offb */
-	ret = radeon_kick_out_firmware_fb(pdev);
+	ret = drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, 0, "radeondrmfb");
 	if (ret)
 		return ret;
 
-- 
2.18.0

_______________________________________________
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Virtualization@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/virtualization

[PATCH v2 07/12] drm/mgag200: use simpler remove_conflicting_pci_framebuffers()

[Michał Mirosław]

Remove duplicated call, while at it.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/mgag200/mgag200_drv.c  | 21 +--------------------
 drivers/gpu/drm/mgag200/mgag200_main.c |  9 ---------
 2 files changed, 1 insertion(+), 29 deletions(-)

diff --git a/drivers/gpu/drm/mgag200/mgag200_drv.c b/drivers/gpu/drm/mgag200/mgag200_drv.c
index 74cdde2ee474..ac6af4bd9df6 100644
--- a/drivers/gpu/drm/mgag200/mgag200_drv.c
+++ b/drivers/gpu/drm/mgag200/mgag200_drv.c
@@ -42,29 +42,10 @@ static const struct pci_device_id pciidlist[] = {
 
 MODULE_DEVICE_TABLE(pci, pciidlist);
 
-static void mgag200_kick_out_firmware_fb(struct pci_dev *pdev)
-{
-	struct apertures_struct *ap;
-	bool primary = false;
-
-	ap = alloc_apertures(1);
-	if (!ap)
-		return;
-
-	ap->ranges[0].base = pci_resource_start(pdev, 0);
-	ap->ranges[0].size = pci_resource_len(pdev, 0);
-
-#ifdef CONFIG_X86
-	primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
-#endif
-	drm_fb_helper_remove_conflicting_framebuffers(ap, "mgag200drmfb", primary);
-	kfree(ap);
-}
-
 
 static int mga_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 {
-	mgag200_kick_out_firmware_fb(pdev);
+	drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, 0, "mgag200drmfb");
 
 	return drm_get_pci_dev(pdev, ent, &driver);
 }
diff --git a/drivers/gpu/drm/mgag200/mgag200_main.c b/drivers/gpu/drm/mgag200/mgag200_main.c
index 780f983b0294..79d54103d470 100644
--- a/drivers/gpu/drm/mgag200/mgag200_main.c
+++ b/drivers/gpu/drm/mgag200/mgag200_main.c
@@ -124,20 +124,11 @@ static int mga_probe_vram(struct mga_device *mdev, void __iomem *mem)
 static int mga_vram_init(struct mga_device *mdev)
 {
 	void __iomem *mem;
-	struct apertures_struct *aper = alloc_apertures(1);
-	if (!aper)
-		return -ENOMEM;
 
 	/* BAR 0 is VRAM */
 	mdev->mc.vram_base = pci_resource_start(mdev->dev->pdev, 0);
 	mdev->mc.vram_window = pci_resource_len(mdev->dev->pdev, 0);
 
-	aper->ranges[0].base = mdev->mc.vram_base;
-	aper->ranges[0].size = mdev->mc.vram_window;
-
-	drm_fb_helper_remove_conflicting_framebuffers(aper, "mgafb", true);
-	kfree(aper);
-
 	if (!devm_request_mem_region(mdev->dev->dev, mdev->mc.vram_base, mdev->mc.vram_window,
 				"mgadrmfb_vram")) {
 		DRM_ERROR("can't reserve VRAM\n");
-- 
2.18.0


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http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

[PATCH v2 07/12] drm/mgag200: use simpler remove_conflicting_pci_framebuffers()

[Michał Mirosław]

Remove duplicated call, while at it.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/mgag200/mgag200_drv.c  | 21 +--------------------
 drivers/gpu/drm/mgag200/mgag200_main.c |  9 ---------
 2 files changed, 1 insertion(+), 29 deletions(-)

diff --git a/drivers/gpu/drm/mgag200/mgag200_drv.c b/drivers/gpu/drm/mgag200/mgag200_drv.c
index 74cdde2ee474..ac6af4bd9df6 100644
--- a/drivers/gpu/drm/mgag200/mgag200_drv.c
+++ b/drivers/gpu/drm/mgag200/mgag200_drv.c
@@ -42,29 +42,10 @@ static const struct pci_device_id pciidlist[] = {
 
 MODULE_DEVICE_TABLE(pci, pciidlist);
 
-static void mgag200_kick_out_firmware_fb(struct pci_dev *pdev)
-{
-	struct apertures_struct *ap;
-	bool primary = false;
-
-	ap = alloc_apertures(1);
-	if (!ap)
-		return;
-
-	ap->ranges[0].base = pci_resource_start(pdev, 0);
-	ap->ranges[0].size = pci_resource_len(pdev, 0);
-
-#ifdef CONFIG_X86
-	primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
-#endif
-	drm_fb_helper_remove_conflicting_framebuffers(ap, "mgag200drmfb", primary);
-	kfree(ap);
-}
-
 
 static int mga_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 {
-	mgag200_kick_out_firmware_fb(pdev);
+	drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, 0, "mgag200drmfb");
 
 	return drm_get_pci_dev(pdev, ent, &driver);
 }
diff --git a/drivers/gpu/drm/mgag200/mgag200_main.c b/drivers/gpu/drm/mgag200/mgag200_main.c
index 780f983b0294..79d54103d470 100644
--- a/drivers/gpu/drm/mgag200/mgag200_main.c
+++ b/drivers/gpu/drm/mgag200/mgag200_main.c
@@ -124,20 +124,11 @@ static int mga_probe_vram(struct mga_device *mdev, void __iomem *mem)
 static int mga_vram_init(struct mga_device *mdev)
 {
 	void __iomem *mem;
-	struct apertures_struct *aper = alloc_apertures(1);
-	if (!aper)
-		return -ENOMEM;
 
 	/* BAR 0 is VRAM */
 	mdev->mc.vram_base = pci_resource_start(mdev->dev->pdev, 0);
 	mdev->mc.vram_window = pci_resource_len(mdev->dev->pdev, 0);
 
-	aper->ranges[0].base = mdev->mc.vram_base;
-	aper->ranges[0].size = mdev->mc.vram_window;
-
-	drm_fb_helper_remove_conflicting_framebuffers(aper, "mgafb", true);
-	kfree(aper);
-
 	if (!devm_request_mem_region(mdev->dev->dev, mdev->mc.vram_base, mdev->mc.vram_window,
 				"mgadrmfb_vram")) {
 		DRM_ERROR("can't reserve VRAM\n");
-- 
2.18.0

[PATCH v2 08/12] drm/radeon: use simpler remove_conflicting_pci_framebuffers()

[Michał Mirosław]

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/radeon/radeon_drv.c | 23 +----------------------
 1 file changed, 1 insertion(+), 22 deletions(-)

diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c
index b28288a781ef..36c98a0ec991 100644
--- a/drivers/gpu/drm/radeon/radeon_drv.c
+++ b/drivers/gpu/drm/radeon/radeon_drv.c
@@ -311,27 +311,6 @@ static struct drm_driver kms_driver;
 
 bool radeon_device_is_virtual(void);
 
-static int radeon_kick_out_firmware_fb(struct pci_dev *pdev)
-{
-	struct apertures_struct *ap;
-	bool primary = false;
-
-	ap = alloc_apertures(1);
-	if (!ap)
-		return -ENOMEM;
-
-	ap->ranges[0].base = pci_resource_start(pdev, 0);
-	ap->ranges[0].size = pci_resource_len(pdev, 0);
-
-#ifdef CONFIG_X86
-	primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
-#endif
-	drm_fb_helper_remove_conflicting_framebuffers(ap, "radeondrmfb", primary);
-	kfree(ap);
-
-	return 0;
-}
-
 static int radeon_pci_probe(struct pci_dev *pdev,
 			    const struct pci_device_id *ent)
 {
@@ -341,7 +320,7 @@ static int radeon_pci_probe(struct pci_dev *pdev,
 		return -EPROBE_DEFER;
 
 	/* Get rid of things like offb */
-	ret = radeon_kick_out_firmware_fb(pdev);
+	ret = drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, 0, "radeondrmfb");
 	if (ret)
 		return ret;
 
-- 
2.18.0

[PATCH v2 07/12] drm/mgag200: use simpler remove_conflicting_pci_framebuffers()

[Michał Mirosław]

Remove duplicated call, while at it.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/mgag200/mgag200_drv.c  | 21 +--------------------
 drivers/gpu/drm/mgag200/mgag200_main.c |  9 ---------
 2 files changed, 1 insertion(+), 29 deletions(-)

diff --git a/drivers/gpu/drm/mgag200/mgag200_drv.c b/drivers/gpu/drm/mgag200/mgag200_drv.c
index 74cdde2ee474..ac6af4bd9df6 100644
--- a/drivers/gpu/drm/mgag200/mgag200_drv.c
+++ b/drivers/gpu/drm/mgag200/mgag200_drv.c
@@ -42,29 +42,10 @@ static const struct pci_device_id pciidlist[] = {
 
 MODULE_DEVICE_TABLE(pci, pciidlist);
 
-static void mgag200_kick_out_firmware_fb(struct pci_dev *pdev)
-{
-	struct apertures_struct *ap;
-	bool primary = false;
-
-	ap = alloc_apertures(1);
-	if (!ap)
-		return;
-
-	ap->ranges[0].base = pci_resource_start(pdev, 0);
-	ap->ranges[0].size = pci_resource_len(pdev, 0);
-
-#ifdef CONFIG_X86
-	primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
-#endif
-	drm_fb_helper_remove_conflicting_framebuffers(ap, "mgag200drmfb", primary);
-	kfree(ap);
-}
-
 
 static int mga_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 {
-	mgag200_kick_out_firmware_fb(pdev);
+	drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, 0, "mgag200drmfb");
 
 	return drm_get_pci_dev(pdev, ent, &driver);
 }
diff --git a/drivers/gpu/drm/mgag200/mgag200_main.c b/drivers/gpu/drm/mgag200/mgag200_main.c
index 780f983b0294..79d54103d470 100644
--- a/drivers/gpu/drm/mgag200/mgag200_main.c
+++ b/drivers/gpu/drm/mgag200/mgag200_main.c
@@ -124,20 +124,11 @@ static int mga_probe_vram(struct mga_device *mdev, void __iomem *mem)
 static int mga_vram_init(struct mga_device *mdev)
 {
 	void __iomem *mem;
-	struct apertures_struct *aper = alloc_apertures(1);
-	if (!aper)
-		return -ENOMEM;
 
 	/* BAR 0 is VRAM */
 	mdev->mc.vram_base = pci_resource_start(mdev->dev->pdev, 0);
 	mdev->mc.vram_window = pci_resource_len(mdev->dev->pdev, 0);
 
-	aper->ranges[0].base = mdev->mc.vram_base;
-	aper->ranges[0].size = mdev->mc.vram_window;
-
-	drm_fb_helper_remove_conflicting_framebuffers(aper, "mgafb", true);
-	kfree(aper);
-
 	if (!devm_request_mem_region(mdev->dev->dev, mdev->mc.vram_base, mdev->mc.vram_window,
 				"mgadrmfb_vram")) {
 		DRM_ERROR("can't reserve VRAM\n");
-- 
2.18.0

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Virtualization@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/virtualization

[PATCH v2 08/12] drm/radeon: use simpler remove_conflicting_pci_framebuffers()

[Michał Mirosław]

Signed-off-by: Micha? Miros?aw <mirq-linux@rere.qmqm.pl>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/radeon/radeon_drv.c | 23 +----------------------
 1 file changed, 1 insertion(+), 22 deletions(-)

diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c
index b28288a781ef..36c98a0ec991 100644
--- a/drivers/gpu/drm/radeon/radeon_drv.c
+++ b/drivers/gpu/drm/radeon/radeon_drv.c
@@ -311,27 +311,6 @@ static struct drm_driver kms_driver;
 
 bool radeon_device_is_virtual(void);
 
-static int radeon_kick_out_firmware_fb(struct pci_dev *pdev)
-{
-	struct apertures_struct *ap;
-	bool primary = false;
-
-	ap = alloc_apertures(1);
-	if (!ap)
-		return -ENOMEM;
-
-	ap->ranges[0].base = pci_resource_start(pdev, 0);
-	ap->ranges[0].size = pci_resource_len(pdev, 0);
-
-#ifdef CONFIG_X86
-	primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
-#endif
-	drm_fb_helper_remove_conflicting_framebuffers(ap, "radeondrmfb", primary);
-	kfree(ap);
-
-	return 0;
-}
-
 static int radeon_pci_probe(struct pci_dev *pdev,
 			    const struct pci_device_id *ent)
 {
@@ -341,7 +320,7 @@ static int radeon_pci_probe(struct pci_dev *pdev,
 		return -EPROBE_DEFER;
 
 	/* Get rid of things like offb */
-	ret = radeon_kick_out_firmware_fb(pdev);
+	ret = drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, 0, "radeondrmfb");
 	if (ret)
 		return ret;
 
-- 
2.18.0

[PATCH v2 07/12] drm/mgag200: use simpler remove_conflicting_pci_framebuffers()

[Michał Mirosław]

Remove duplicated call, while at it.

Signed-off-by: Micha? Miros?aw <mirq-linux@rere.qmqm.pl>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/mgag200/mgag200_drv.c  | 21 +--------------------
 drivers/gpu/drm/mgag200/mgag200_main.c |  9 ---------
 2 files changed, 1 insertion(+), 29 deletions(-)

diff --git a/drivers/gpu/drm/mgag200/mgag200_drv.c b/drivers/gpu/drm/mgag200/mgag200_drv.c
index 74cdde2ee474..ac6af4bd9df6 100644
--- a/drivers/gpu/drm/mgag200/mgag200_drv.c
+++ b/drivers/gpu/drm/mgag200/mgag200_drv.c
@@ -42,29 +42,10 @@ static const struct pci_device_id pciidlist[] = {
 
 MODULE_DEVICE_TABLE(pci, pciidlist);
 
-static void mgag200_kick_out_firmware_fb(struct pci_dev *pdev)
-{
-	struct apertures_struct *ap;
-	bool primary = false;
-
-	ap = alloc_apertures(1);
-	if (!ap)
-		return;
-
-	ap->ranges[0].base = pci_resource_start(pdev, 0);
-	ap->ranges[0].size = pci_resource_len(pdev, 0);
-
-#ifdef CONFIG_X86
-	primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
-#endif
-	drm_fb_helper_remove_conflicting_framebuffers(ap, "mgag200drmfb", primary);
-	kfree(ap);
-}
-
 
 static int mga_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 {
-	mgag200_kick_out_firmware_fb(pdev);
+	drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, 0, "mgag200drmfb");
 
 	return drm_get_pci_dev(pdev, ent, &driver);
 }
diff --git a/drivers/gpu/drm/mgag200/mgag200_main.c b/drivers/gpu/drm/mgag200/mgag200_main.c
index 780f983b0294..79d54103d470 100644
--- a/drivers/gpu/drm/mgag200/mgag200_main.c
+++ b/drivers/gpu/drm/mgag200/mgag200_main.c
@@ -124,20 +124,11 @@ static int mga_probe_vram(struct mga_device *mdev, void __iomem *mem)
 static int mga_vram_init(struct mga_device *mdev)
 {
 	void __iomem *mem;
-	struct apertures_struct *aper = alloc_apertures(1);
-	if (!aper)
-		return -ENOMEM;
 
 	/* BAR 0 is VRAM */
 	mdev->mc.vram_base = pci_resource_start(mdev->dev->pdev, 0);
 	mdev->mc.vram_window = pci_resource_len(mdev->dev->pdev, 0);
 
-	aper->ranges[0].base = mdev->mc.vram_base;
-	aper->ranges[0].size = mdev->mc.vram_window;
-
-	drm_fb_helper_remove_conflicting_framebuffers(aper, "mgafb", true);
-	kfree(aper);
-
 	if (!devm_request_mem_region(mdev->dev->dev, mdev->mc.vram_base, mdev->mc.vram_window,
 				"mgadrmfb_vram")) {
 		DRM_ERROR("can't reserve VRAM\n");
-- 
2.18.0

[PATCH v2 09/12] drm/virtio: use simpler remove_conflicting_pci_framebuffers()

[Michał Mirosław]

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/virtio/virtgpu_drm_bus.c | 24 +++---------------------
 1 file changed, 3 insertions(+), 21 deletions(-)

diff --git a/drivers/gpu/drm/virtio/virtgpu_drm_bus.c b/drivers/gpu/drm/virtio/virtgpu_drm_bus.c
index 7df8d0c9026a..115ed546ca4e 100644
--- a/drivers/gpu/drm/virtio/virtgpu_drm_bus.c
+++ b/drivers/gpu/drm/virtio/virtgpu_drm_bus.c
@@ -28,26 +28,6 @@
 
 #include "virtgpu_drv.h"
 
-static void virtio_pci_kick_out_firmware_fb(struct pci_dev *pci_dev)
-{
-	struct apertures_struct *ap;
-	bool primary;
-
-	ap = alloc_apertures(1);
-	if (!ap)
-		return;
-
-	ap->ranges[0].base = pci_resource_start(pci_dev, 0);
-	ap->ranges[0].size = pci_resource_len(pci_dev, 0);
-
-	primary = pci_dev->resource[PCI_ROM_RESOURCE].flags
-		& IORESOURCE_ROM_SHADOW;
-
-	drm_fb_helper_remove_conflicting_framebuffers(ap, "virtiodrmfb", primary);
-
-	kfree(ap);
-}
-
 int drm_virtio_init(struct drm_driver *driver, struct virtio_device *vdev)
 {
 	struct drm_device *dev;
@@ -69,7 +49,9 @@ int drm_virtio_init(struct drm_driver *driver, struct virtio_device *vdev)
 			 pname);
 		dev->pdev = pdev;
 		if (vga)
-			virtio_pci_kick_out_firmware_fb(pdev);
+			drm_fb_helper_remove_conflicting_pci_framebuffers(pdev,
+									  0,
+									  "virtiodrmfb");
 
 		snprintf(unique, sizeof(unique), "pci:%s", pname);
 		ret = drm_dev_set_unique(dev, unique);
-- 
2.18.0

_______________________________________________
Virtualization mailing list
Virtualization@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/virtualization

[PATCH v2 09/12] drm/virtio: use simpler remove_conflicting_pci_framebuffers()

[Michał Mirosław]

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/virtio/virtgpu_drm_bus.c | 24 +++---------------------
 1 file changed, 3 insertions(+), 21 deletions(-)

diff --git a/drivers/gpu/drm/virtio/virtgpu_drm_bus.c b/drivers/gpu/drm/virtio/virtgpu_drm_bus.c
index 7df8d0c9026a..115ed546ca4e 100644
--- a/drivers/gpu/drm/virtio/virtgpu_drm_bus.c
+++ b/drivers/gpu/drm/virtio/virtgpu_drm_bus.c
@@ -28,26 +28,6 @@
 
 #include "virtgpu_drv.h"
 
-static void virtio_pci_kick_out_firmware_fb(struct pci_dev *pci_dev)
-{
-	struct apertures_struct *ap;
-	bool primary;
-
-	ap = alloc_apertures(1);
-	if (!ap)
-		return;
-
-	ap->ranges[0].base = pci_resource_start(pci_dev, 0);
-	ap->ranges[0].size = pci_resource_len(pci_dev, 0);
-
-	primary = pci_dev->resource[PCI_ROM_RESOURCE].flags
-		& IORESOURCE_ROM_SHADOW;
-
-	drm_fb_helper_remove_conflicting_framebuffers(ap, "virtiodrmfb", primary);
-
-	kfree(ap);
-}
-
 int drm_virtio_init(struct drm_driver *driver, struct virtio_device *vdev)
 {
 	struct drm_device *dev;
@@ -69,7 +49,9 @@ int drm_virtio_init(struct drm_driver *driver, struct virtio_device *vdev)
 			 pname);
 		dev->pdev = pdev;
 		if (vga)
-			virtio_pci_kick_out_firmware_fb(pdev);
+			drm_fb_helper_remove_conflicting_pci_framebuffers(pdev,
+									  0,
+									  "virtiodrmfb");
 
 		snprintf(unique, sizeof(unique), "pci:%s", pname);
 		ret = drm_dev_set_unique(dev, unique);
-- 
2.18.0

[PATCH v2 09/12] drm/virtio: use simpler remove_conflicting_pci_framebuffers()

[Michał Mirosław]

Signed-off-by: Micha? Miros?aw <mirq-linux@rere.qmqm.pl>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/virtio/virtgpu_drm_bus.c | 24 +++---------------------
 1 file changed, 3 insertions(+), 21 deletions(-)

diff --git a/drivers/gpu/drm/virtio/virtgpu_drm_bus.c b/drivers/gpu/drm/virtio/virtgpu_drm_bus.c
index 7df8d0c9026a..115ed546ca4e 100644
--- a/drivers/gpu/drm/virtio/virtgpu_drm_bus.c
+++ b/drivers/gpu/drm/virtio/virtgpu_drm_bus.c
@@ -28,26 +28,6 @@
 
 #include "virtgpu_drv.h"
 
-static void virtio_pci_kick_out_firmware_fb(struct pci_dev *pci_dev)
-{
-	struct apertures_struct *ap;
-	bool primary;
-
-	ap = alloc_apertures(1);
-	if (!ap)
-		return;
-
-	ap->ranges[0].base = pci_resource_start(pci_dev, 0);
-	ap->ranges[0].size = pci_resource_len(pci_dev, 0);
-
-	primary = pci_dev->resource[PCI_ROM_RESOURCE].flags
-		& IORESOURCE_ROM_SHADOW;
-
-	drm_fb_helper_remove_conflicting_framebuffers(ap, "virtiodrmfb", primary);
-
-	kfree(ap);
-}
-
 int drm_virtio_init(struct drm_driver *driver, struct virtio_device *vdev)
 {
 	struct drm_device *dev;
@@ -69,7 +49,9 @@ int drm_virtio_init(struct drm_driver *driver, struct virtio_device *vdev)
 			 pname);
 		dev->pdev = pdev;
 		if (vga)
-			virtio_pci_kick_out_firmware_fb(pdev);
+			drm_fb_helper_remove_conflicting_pci_framebuffers(pdev,
+									  0,
+									  "virtiodrmfb");
 
 		snprintf(unique, sizeof(unique), "pci:%s", pname);
 		ret = drm_dev_set_unique(dev, unique);
-- 
2.18.0

[PATCH v2 10/12] drm/vc4: use simpler remove_conflicting_framebuffers(NULL)

[Michał Mirosław]

Use remove_conflicting_framebuffers(NULL) instead of open-coding it.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Acked-by: Eric Anholt <eric@anholt.net>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/vc4/vc4_drv.c | 20 +-------------------
 1 file changed, 1 insertion(+), 19 deletions(-)

diff --git a/drivers/gpu/drm/vc4/vc4_drv.c b/drivers/gpu/drm/vc4/vc4_drv.c
index 94b99c90425a..96bb90325995 100644
--- a/drivers/gpu/drm/vc4/vc4_drv.c
+++ b/drivers/gpu/drm/vc4/vc4_drv.c
@@ -246,24 +246,6 @@ static void vc4_match_add_drivers(struct device *dev,
 	}
 }
 
-static void vc4_kick_out_firmware_fb(void)
-{
-	struct apertures_struct *ap;
-
-	ap = alloc_apertures(1);
-	if (!ap)
-		return;
-
-	/* Since VC4 is a UMA device, the simplefb node may have been
-	 * located anywhere in memory.
-	 */
-	ap->ranges[0].base = 0;
-	ap->ranges[0].size = ~0;
-
-	drm_fb_helper_remove_conflicting_framebuffers(ap, "vc4drmfb", false);
-	kfree(ap);
-}
-
 static int vc4_drm_bind(struct device *dev)
 {
 	struct platform_device *pdev = to_platform_device(dev);
@@ -296,7 +278,7 @@ static int vc4_drm_bind(struct device *dev)
 	if (ret)
 		goto gem_destroy;
 
-	vc4_kick_out_firmware_fb();
+	drm_fb_helper_remove_conflicting_framebuffers(NULL, "vc4drmfb", false);
 
 	ret = drm_dev_register(drm, 0);
 	if (ret < 0)
-- 
2.18.0


_______________________________________________
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linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

[PATCH v2 10/12] drm/vc4: use simpler remove_conflicting_framebuffers(NULL)

[Michał Mirosław]

Use remove_conflicting_framebuffers(NULL) instead of open-coding it.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Acked-by: Eric Anholt <eric@anholt.net>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/vc4/vc4_drv.c | 20 +-------------------
 1 file changed, 1 insertion(+), 19 deletions(-)

diff --git a/drivers/gpu/drm/vc4/vc4_drv.c b/drivers/gpu/drm/vc4/vc4_drv.c
index 94b99c90425a..96bb90325995 100644
--- a/drivers/gpu/drm/vc4/vc4_drv.c
+++ b/drivers/gpu/drm/vc4/vc4_drv.c
@@ -246,24 +246,6 @@ static void vc4_match_add_drivers(struct device *dev,
 	}
 }
 
-static void vc4_kick_out_firmware_fb(void)
-{
-	struct apertures_struct *ap;
-
-	ap = alloc_apertures(1);
-	if (!ap)
-		return;
-
-	/* Since VC4 is a UMA device, the simplefb node may have been
-	 * located anywhere in memory.
-	 */
-	ap->ranges[0].base = 0;
-	ap->ranges[0].size = ~0;
-
-	drm_fb_helper_remove_conflicting_framebuffers(ap, "vc4drmfb", false);
-	kfree(ap);
-}
-
 static int vc4_drm_bind(struct device *dev)
 {
 	struct platform_device *pdev = to_platform_device(dev);
@@ -296,7 +278,7 @@ static int vc4_drm_bind(struct device *dev)
 	if (ret)
 		goto gem_destroy;
 
-	vc4_kick_out_firmware_fb();
+	drm_fb_helper_remove_conflicting_framebuffers(NULL, "vc4drmfb", false);
 
 	ret = drm_dev_register(drm, 0);
 	if (ret < 0)
-- 
2.18.0

[PATCH v2 10/12] drm/vc4: use simpler remove_conflicting_framebuffers(NULL)

[Michał Mirosław]

Use remove_conflicting_framebuffers(NULL) instead of open-coding it.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Acked-by: Eric Anholt <eric@anholt.net>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/vc4/vc4_drv.c | 20 +-------------------
 1 file changed, 1 insertion(+), 19 deletions(-)

diff --git a/drivers/gpu/drm/vc4/vc4_drv.c b/drivers/gpu/drm/vc4/vc4_drv.c
index 94b99c90425a..96bb90325995 100644
--- a/drivers/gpu/drm/vc4/vc4_drv.c
+++ b/drivers/gpu/drm/vc4/vc4_drv.c
@@ -246,24 +246,6 @@ static void vc4_match_add_drivers(struct device *dev,
 	}
 }
 
-static void vc4_kick_out_firmware_fb(void)
-{
-	struct apertures_struct *ap;
-
-	ap = alloc_apertures(1);
-	if (!ap)
-		return;
-
-	/* Since VC4 is a UMA device, the simplefb node may have been
-	 * located anywhere in memory.
-	 */
-	ap->ranges[0].base = 0;
-	ap->ranges[0].size = ~0;
-
-	drm_fb_helper_remove_conflicting_framebuffers(ap, "vc4drmfb", false);
-	kfree(ap);
-}
-
 static int vc4_drm_bind(struct device *dev)
 {
 	struct platform_device *pdev = to_platform_device(dev);
@@ -296,7 +278,7 @@ static int vc4_drm_bind(struct device *dev)
 	if (ret)
 		goto gem_destroy;
 
-	vc4_kick_out_firmware_fb();
+	drm_fb_helper_remove_conflicting_framebuffers(NULL, "vc4drmfb", false);
 
 	ret = drm_dev_register(drm, 0);
 	if (ret < 0)
-- 
2.18.0

_______________________________________________
Virtualization mailing list
Virtualization@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/virtualization

[PATCH v2 10/12] drm/vc4: use simpler remove_conflicting_framebuffers(NULL)

[Michał Mirosław]

Use remove_conflicting_framebuffers(NULL) instead of open-coding it.

Signed-off-by: Micha? Miros?aw <mirq-linux@rere.qmqm.pl>
Acked-by: Eric Anholt <eric@anholt.net>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/vc4/vc4_drv.c | 20 +-------------------
 1 file changed, 1 insertion(+), 19 deletions(-)

diff --git a/drivers/gpu/drm/vc4/vc4_drv.c b/drivers/gpu/drm/vc4/vc4_drv.c
index 94b99c90425a..96bb90325995 100644
--- a/drivers/gpu/drm/vc4/vc4_drv.c
+++ b/drivers/gpu/drm/vc4/vc4_drv.c
@@ -246,24 +246,6 @@ static void vc4_match_add_drivers(struct device *dev,
 	}
 }
 
-static void vc4_kick_out_firmware_fb(void)
-{
-	struct apertures_struct *ap;
-
-	ap = alloc_apertures(1);
-	if (!ap)
-		return;
-
-	/* Since VC4 is a UMA device, the simplefb node may have been
-	 * located anywhere in memory.
-	 */
-	ap->ranges[0].base = 0;
-	ap->ranges[0].size = ~0;
-
-	drm_fb_helper_remove_conflicting_framebuffers(ap, "vc4drmfb", false);
-	kfree(ap);
-}
-
 static int vc4_drm_bind(struct device *dev)
 {
 	struct platform_device *pdev = to_platform_device(dev);
@@ -296,7 +278,7 @@ static int vc4_drm_bind(struct device *dev)
 	if (ret)
 		goto gem_destroy;
 
-	vc4_kick_out_firmware_fb();
+	drm_fb_helper_remove_conflicting_framebuffers(NULL, "vc4drmfb", false);
 
 	ret = drm_dev_register(drm, 0);
 	if (ret < 0)
-- 
2.18.0

[PATCH v2 11/12] drm/sun4i: use simpler remove_conflicting_framebuffers(NULL)

[Michał Mirosław]

Use remove_conflicting_framebuffers(NULL) instead of duplicating it.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/sun4i/sun4i_drv.c | 18 +-----------------
 1 file changed, 1 insertion(+), 17 deletions(-)

diff --git a/drivers/gpu/drm/sun4i/sun4i_drv.c b/drivers/gpu/drm/sun4i/sun4i_drv.c
index 50d19605c38f..555b5db8036f 100644
--- a/drivers/gpu/drm/sun4i/sun4i_drv.c
+++ b/drivers/gpu/drm/sun4i/sun4i_drv.c
@@ -60,22 +60,6 @@ static struct drm_driver sun4i_drv_driver = {
 	/* Frame Buffer Operations */
 };
 
-static void sun4i_remove_framebuffers(void)
-{
-	struct apertures_struct *ap;
-
-	ap = alloc_apertures(1);
-	if (!ap)
-		return;
-
-	/* The framebuffer can be located anywhere in RAM */
-	ap->ranges[0].base = 0;
-	ap->ranges[0].size = ~0;
-
-	drm_fb_helper_remove_conflicting_framebuffers(ap, "sun4i-drm-fb", false);
-	kfree(ap);
-}
-
 static int sun4i_drv_bind(struct device *dev)
 {
 	struct drm_device *drm;
@@ -118,7 +102,7 @@ static int sun4i_drv_bind(struct device *dev)
 	drm->irq_enabled = true;
 
 	/* Remove early framebuffers (ie. simplefb) */
-	sun4i_remove_framebuffers();
+	drm_fb_helper_remove_conflicting_framebuffers(NULL, "sun4i-drm-fb", false);
 
 	/* Create our framebuffer */
 	ret = sun4i_framebuffer_init(drm);
-- 
2.18.0


_______________________________________________
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linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

[PATCH v2 11/12] drm/sun4i: use simpler remove_conflicting_framebuffers(NULL)

[Michał Mirosław]

Use remove_conflicting_framebuffers(NULL) instead of duplicating it.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/sun4i/sun4i_drv.c | 18 +-----------------
 1 file changed, 1 insertion(+), 17 deletions(-)

diff --git a/drivers/gpu/drm/sun4i/sun4i_drv.c b/drivers/gpu/drm/sun4i/sun4i_drv.c
index 50d19605c38f..555b5db8036f 100644
--- a/drivers/gpu/drm/sun4i/sun4i_drv.c
+++ b/drivers/gpu/drm/sun4i/sun4i_drv.c
@@ -60,22 +60,6 @@ static struct drm_driver sun4i_drv_driver = {
 	/* Frame Buffer Operations */
 };
 
-static void sun4i_remove_framebuffers(void)
-{
-	struct apertures_struct *ap;
-
-	ap = alloc_apertures(1);
-	if (!ap)
-		return;
-
-	/* The framebuffer can be located anywhere in RAM */
-	ap->ranges[0].base = 0;
-	ap->ranges[0].size = ~0;
-
-	drm_fb_helper_remove_conflicting_framebuffers(ap, "sun4i-drm-fb", false);
-	kfree(ap);
-}
-
 static int sun4i_drv_bind(struct device *dev)
 {
 	struct drm_device *drm;
@@ -118,7 +102,7 @@ static int sun4i_drv_bind(struct device *dev)
 	drm->irq_enabled = true;
 
 	/* Remove early framebuffers (ie. simplefb) */
-	sun4i_remove_framebuffers();
+	drm_fb_helper_remove_conflicting_framebuffers(NULL, "sun4i-drm-fb", false);
 
 	/* Create our framebuffer */
 	ret = sun4i_framebuffer_init(drm);
-- 
2.18.0

[PATCH v2 11/12] drm/sun4i: use simpler remove_conflicting_framebuffers(NULL)

[Michał Mirosław]

Use remove_conflicting_framebuffers(NULL) instead of duplicating it.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/sun4i/sun4i_drv.c | 18 +-----------------
 1 file changed, 1 insertion(+), 17 deletions(-)

diff --git a/drivers/gpu/drm/sun4i/sun4i_drv.c b/drivers/gpu/drm/sun4i/sun4i_drv.c
index 50d19605c38f..555b5db8036f 100644
--- a/drivers/gpu/drm/sun4i/sun4i_drv.c
+++ b/drivers/gpu/drm/sun4i/sun4i_drv.c
@@ -60,22 +60,6 @@ static struct drm_driver sun4i_drv_driver = {
 	/* Frame Buffer Operations */
 };
 
-static void sun4i_remove_framebuffers(void)
-{
-	struct apertures_struct *ap;
-
-	ap = alloc_apertures(1);
-	if (!ap)
-		return;
-
-	/* The framebuffer can be located anywhere in RAM */
-	ap->ranges[0].base = 0;
-	ap->ranges[0].size = ~0;
-
-	drm_fb_helper_remove_conflicting_framebuffers(ap, "sun4i-drm-fb", false);
-	kfree(ap);
-}
-
 static int sun4i_drv_bind(struct device *dev)
 {
 	struct drm_device *drm;
@@ -118,7 +102,7 @@ static int sun4i_drv_bind(struct device *dev)
 	drm->irq_enabled = true;
 
 	/* Remove early framebuffers (ie. simplefb) */
-	sun4i_remove_framebuffers();
+	drm_fb_helper_remove_conflicting_framebuffers(NULL, "sun4i-drm-fb", false);
 
 	/* Create our framebuffer */
 	ret = sun4i_framebuffer_init(drm);
-- 
2.18.0

_______________________________________________
Virtualization mailing list
Virtualization@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/virtualization

[PATCH v2 11/12] drm/sun4i: use simpler remove_conflicting_framebuffers(NULL)

[Michał Mirosław]

Use remove_conflicting_framebuffers(NULL) instead of duplicating it.

Signed-off-by: Micha? Miros?aw <mirq-linux@rere.qmqm.pl>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/sun4i/sun4i_drv.c | 18 +-----------------
 1 file changed, 1 insertion(+), 17 deletions(-)

diff --git a/drivers/gpu/drm/sun4i/sun4i_drv.c b/drivers/gpu/drm/sun4i/sun4i_drv.c
index 50d19605c38f..555b5db8036f 100644
--- a/drivers/gpu/drm/sun4i/sun4i_drv.c
+++ b/drivers/gpu/drm/sun4i/sun4i_drv.c
@@ -60,22 +60,6 @@ static struct drm_driver sun4i_drv_driver = {
 	/* Frame Buffer Operations */
 };
 
-static void sun4i_remove_framebuffers(void)
-{
-	struct apertures_struct *ap;
-
-	ap = alloc_apertures(1);
-	if (!ap)
-		return;
-
-	/* The framebuffer can be located anywhere in RAM */
-	ap->ranges[0].base = 0;
-	ap->ranges[0].size = ~0;
-
-	drm_fb_helper_remove_conflicting_framebuffers(ap, "sun4i-drm-fb", false);
-	kfree(ap);
-}
-
 static int sun4i_drv_bind(struct device *dev)
 {
 	struct drm_device *drm;
@@ -118,7 +102,7 @@ static int sun4i_drv_bind(struct device *dev)
 	drm->irq_enabled = true;
 
 	/* Remove early framebuffers (ie. simplefb) */
-	sun4i_remove_framebuffers();
+	drm_fb_helper_remove_conflicting_framebuffers(NULL, "sun4i-drm-fb", false);
 
 	/* Create our framebuffer */
 	ret = sun4i_framebuffer_init(drm);
-- 
2.18.0

[PATCH v2 12/12] drm/tegra: kick out simplefb

[Michał Mirosław]

Kick out firmware fb when loading Tegra driver.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/tegra/drm.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/tegra/drm.c b/drivers/gpu/drm/tegra/drm.c
index 7afe2f635f74..b51ec138fed2 100644
--- a/drivers/gpu/drm/tegra/drm.c
+++ b/drivers/gpu/drm/tegra/drm.c
@@ -1203,6 +1203,10 @@ static int host1x_drm_probe(struct host1x_device *dev)
 
 	dev_set_drvdata(&dev->dev, drm);
 
+	err = drm_fb_helper_remove_conflicting_framebuffers(NULL, "tegradrmfb", false);
+	if (err < 0)
+		goto unref;
+
 	err = drm_dev_register(drm, 0);
 	if (err < 0)
 		goto unref;
-- 
2.18.0


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

[PATCH v2 12/12] drm/tegra: kick out simplefb

[Michał Mirosław]

Kick out firmware fb when loading Tegra driver.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/tegra/drm.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/tegra/drm.c b/drivers/gpu/drm/tegra/drm.c
index 7afe2f635f74..b51ec138fed2 100644
--- a/drivers/gpu/drm/tegra/drm.c
+++ b/drivers/gpu/drm/tegra/drm.c
@@ -1203,6 +1203,10 @@ static int host1x_drm_probe(struct host1x_device *dev)
 
 	dev_set_drvdata(&dev->dev, drm);
 
+	err = drm_fb_helper_remove_conflicting_framebuffers(NULL, "tegradrmfb", false);
+	if (err < 0)
+		goto unref;
+
 	err = drm_dev_register(drm, 0);
 	if (err < 0)
 		goto unref;
-- 
2.18.0

[PATCH v2 12/12] drm/tegra: kick out simplefb

[Michał Mirosław]

Kick out firmware fb when loading Tegra driver.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/tegra/drm.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/tegra/drm.c b/drivers/gpu/drm/tegra/drm.c
index 7afe2f635f74..b51ec138fed2 100644
--- a/drivers/gpu/drm/tegra/drm.c
+++ b/drivers/gpu/drm/tegra/drm.c
@@ -1203,6 +1203,10 @@ static int host1x_drm_probe(struct host1x_device *dev)
 
 	dev_set_drvdata(&dev->dev, drm);
 
+	err = drm_fb_helper_remove_conflicting_framebuffers(NULL, "tegradrmfb", false);
+	if (err < 0)
+		goto unref;
+
 	err = drm_dev_register(drm, 0);
 	if (err < 0)
 		goto unref;
-- 
2.18.0

_______________________________________________
Virtualization mailing list
Virtualization@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/virtualization

[PATCH v2 12/12] drm/tegra: kick out simplefb

[Michał Mirosław]

Kick out firmware fb when loading Tegra driver.

Signed-off-by: Micha? Miros?aw <mirq-linux@rere.qmqm.pl>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/tegra/drm.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/tegra/drm.c b/drivers/gpu/drm/tegra/drm.c
index 7afe2f635f74..b51ec138fed2 100644
--- a/drivers/gpu/drm/tegra/drm.c
+++ b/drivers/gpu/drm/tegra/drm.c
@@ -1203,6 +1203,10 @@ static int host1x_drm_probe(struct host1x_device *dev)
 
 	dev_set_drvdata(&dev->dev, drm);
 
+	err = drm_fb_helper_remove_conflicting_framebuffers(NULL, "tegradrmfb", false);
+	if (err < 0)
+		goto unref;
+
 	err = drm_dev_register(drm, 0);
 	if (err < 0)
 		goto unref;
-- 
2.18.0

Re: [PATCH v2 02/12] fbdev: allow apertures == NULL in remove_conflicting_framebuffers()

[Daniel Vetter]

On Thu, Aug 30, 2018 at 11:00:05PM +0200, Michał Mirosław wrote:
> Interpret (otherwise-invalid) NULL apertures argument to mean all-memory
> range. This will allow to remove several duplicates of this code from
> drivers in following patches.
> 
> Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
> [for v1]
> Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
> 
> ---
> v2: added kerneldoc to corresponding DRM helper
> ---
>  drivers/video/fbdev/core/fbmem.c | 14 ++++++++++++++
>  include/drm/drm_fb_helper.h      | 10 ++++++++++
>  2 files changed, 24 insertions(+)
> 
> diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c
> index 30a18d4c9de4..0df148eb4699 100644
> --- a/drivers/video/fbdev/core/fbmem.c
> +++ b/drivers/video/fbdev/core/fbmem.c
> @@ -1779,11 +1779,25 @@ int remove_conflicting_framebuffers(struct apertures_struct *a,
>  				    const char *name, bool primary)
>  {
>  	int ret;
> +	bool do_free = false;
> +
> +	if (!a) {
> +		a = alloc_apertures(1);
> +		if (!a)
> +			return -ENOMEM;
> +
> +		a->ranges[0].base = 0;
> +		a->ranges[0].size = ~0;
> +		do_free = true;
> +	}
>  
>  	mutex_lock(&registration_lock);
>  	ret = do_remove_conflicting_framebuffers(a, name, primary);
>  	mutex_unlock(&registration_lock);
>  
> +	if (do_free)
> +		kfree(a);
> +
>  	return ret;
>  }
>  EXPORT_SYMBOL(remove_conflicting_framebuffers);
> diff --git a/include/drm/drm_fb_helper.h b/include/drm/drm_fb_helper.h
> index b069433e7fc1..1c1e53abb25d 100644
> --- a/include/drm/drm_fb_helper.h
> +++ b/include/drm/drm_fb_helper.h
> @@ -566,6 +566,16 @@ static inline void drm_fb_helper_output_poll_changed(struct drm_device *dev)
>  
>  #endif
>  
> +/**
> + * drm_fb_helper_remove_conflicting_framebuffers - remove firmware framebuffers
> + * @a: memory range, users of which are to be removed
> + * @name: requesting driver name
> + * @primary: also kick vga16fb if present
> + *
> + * This function removes framebuffer devices (eg. initialized by firmware)
> + * which use memory range described by @a. If @a is NULL all such devices are
> + * removed.
> + */

This looks like misplaced copypasta. You only need this once I think.
-Daniel

>  static inline int
>  drm_fb_helper_remove_conflicting_framebuffers(struct apertures_struct *a,
>  					      const char *name, bool primary)
> -- 
> 2.18.0
> 
> _______________________________________________
> 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
_______________________________________________
Virtualization mailing list
Virtualization@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/virtualization

Re: [PATCH v2 02/12] fbdev: allow apertures == NULL in remove_conflicting_framebuffers()

[Daniel Vetter]

On Thu, Aug 30, 2018 at 11:00:05PM +0200, Michał Mirosław wrote:
> Interpret (otherwise-invalid) NULL apertures argument to mean all-memory
> range. This will allow to remove several duplicates of this code from
> drivers in following patches.
> 
> Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
> [for v1]
> Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
> 
> ---
> v2: added kerneldoc to corresponding DRM helper
> ---
>  drivers/video/fbdev/core/fbmem.c | 14 ++++++++++++++
>  include/drm/drm_fb_helper.h      | 10 ++++++++++
>  2 files changed, 24 insertions(+)
> 
> diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c
> index 30a18d4c9de4..0df148eb4699 100644
> --- a/drivers/video/fbdev/core/fbmem.c
> +++ b/drivers/video/fbdev/core/fbmem.c
> @@ -1779,11 +1779,25 @@ int remove_conflicting_framebuffers(struct apertures_struct *a,
>  				    const char *name, bool primary)
>  {
>  	int ret;
> +	bool do_free = false;
> +
> +	if (!a) {
> +		a = alloc_apertures(1);
> +		if (!a)
> +			return -ENOMEM;
> +
> +		a->ranges[0].base = 0;
> +		a->ranges[0].size = ~0;
> +		do_free = true;
> +	}
>  
>  	mutex_lock(&registration_lock);
>  	ret = do_remove_conflicting_framebuffers(a, name, primary);
>  	mutex_unlock(&registration_lock);
>  
> +	if (do_free)
> +		kfree(a);
> +
>  	return ret;
>  }
>  EXPORT_SYMBOL(remove_conflicting_framebuffers);
> diff --git a/include/drm/drm_fb_helper.h b/include/drm/drm_fb_helper.h
> index b069433e7fc1..1c1e53abb25d 100644
> --- a/include/drm/drm_fb_helper.h
> +++ b/include/drm/drm_fb_helper.h
> @@ -566,6 +566,16 @@ static inline void drm_fb_helper_output_poll_changed(struct drm_device *dev)
>  
>  #endif
>  
> +/**
> + * drm_fb_helper_remove_conflicting_framebuffers - remove firmware framebuffers
> + * @a: memory range, users of which are to be removed
> + * @name: requesting driver name
> + * @primary: also kick vga16fb if present
> + *
> + * This function removes framebuffer devices (eg. initialized by firmware)
> + * which use memory range described by @a. If @a is NULL all such devices are
> + * removed.
> + */

This looks like misplaced copypasta. You only need this once I think.
-Daniel

>  static inline int
>  drm_fb_helper_remove_conflicting_framebuffers(struct apertures_struct *a,
>  					      const char *name, bool primary)
> -- 
> 2.18.0
> 
> _______________________________________________
> 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

[PATCH v2 02/12] fbdev: allow apertures == NULL in remove_conflicting_framebuffers()

[Daniel Vetter]

On Thu, Aug 30, 2018 at 11:00:05PM +0200, Micha? Miros?aw wrote:
> Interpret (otherwise-invalid) NULL apertures argument to mean all-memory
> range. This will allow to remove several duplicates of this code from
> drivers in following patches.
> 
> Signed-off-by: Micha? Miros?aw <mirq-linux@rere.qmqm.pl>
> [for v1]
> Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
> 
> ---
> v2: added kerneldoc to corresponding DRM helper
> ---
>  drivers/video/fbdev/core/fbmem.c | 14 ++++++++++++++
>  include/drm/drm_fb_helper.h      | 10 ++++++++++
>  2 files changed, 24 insertions(+)
> 
> diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c
> index 30a18d4c9de4..0df148eb4699 100644
> --- a/drivers/video/fbdev/core/fbmem.c
> +++ b/drivers/video/fbdev/core/fbmem.c
> @@ -1779,11 +1779,25 @@ int remove_conflicting_framebuffers(struct apertures_struct *a,
>  				    const char *name, bool primary)
>  {
>  	int ret;
> +	bool do_free = false;
> +
> +	if (!a) {
> +		a = alloc_apertures(1);
> +		if (!a)
> +			return -ENOMEM;
> +
> +		a->ranges[0].base = 0;
> +		a->ranges[0].size = ~0;
> +		do_free = true;
> +	}
>  
>  	mutex_lock(&registration_lock);
>  	ret = do_remove_conflicting_framebuffers(a, name, primary);
>  	mutex_unlock(&registration_lock);
>  
> +	if (do_free)
> +		kfree(a);
> +
>  	return ret;
>  }
>  EXPORT_SYMBOL(remove_conflicting_framebuffers);
> diff --git a/include/drm/drm_fb_helper.h b/include/drm/drm_fb_helper.h
> index b069433e7fc1..1c1e53abb25d 100644
> --- a/include/drm/drm_fb_helper.h
> +++ b/include/drm/drm_fb_helper.h
> @@ -566,6 +566,16 @@ static inline void drm_fb_helper_output_poll_changed(struct drm_device *dev)
>  
>  #endif
>  
> +/**
> + * drm_fb_helper_remove_conflicting_framebuffers - remove firmware framebuffers
> + * @a: memory range, users of which are to be removed
> + * @name: requesting driver name
> + * @primary: also kick vga16fb if present
> + *
> + * This function removes framebuffer devices (eg. initialized by firmware)
> + * which use memory range described by @a. If @a is NULL all such devices are
> + * removed.
> + */

This looks like misplaced copypasta. You only need this once I think.
-Daniel

>  static inline int
>  drm_fb_helper_remove_conflicting_framebuffers(struct apertures_struct *a,
>  					      const char *name, bool primary)
> -- 
> 2.18.0
> 
> _______________________________________________
> dri-devel mailing list
> dri-devel at lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel

-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch

Re: [PATCH v2 02/12] fbdev: allow apertures == NULL in remove_conflicting_framebuffers()

[Daniel Vetter]

On Fri, Aug 31, 2018 at 10:56:56AM +0200, Daniel Vetter wrote:
> On Thu, Aug 30, 2018 at 11:00:05PM +0200, Michał Mirosław wrote:
> > Interpret (otherwise-invalid) NULL apertures argument to mean all-memory
> > range. This will allow to remove several duplicates of this code from
> > drivers in following patches.
> > 
> > Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
> > [for v1]
> > Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
> > 
> > ---
> > v2: added kerneldoc to corresponding DRM helper
> > ---
> >  drivers/video/fbdev/core/fbmem.c | 14 ++++++++++++++
> >  include/drm/drm_fb_helper.h      | 10 ++++++++++
> >  2 files changed, 24 insertions(+)
> > 
> > diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c
> > index 30a18d4c9de4..0df148eb4699 100644
> > --- a/drivers/video/fbdev/core/fbmem.c
> > +++ b/drivers/video/fbdev/core/fbmem.c
> > @@ -1779,11 +1779,25 @@ int remove_conflicting_framebuffers(struct apertures_struct *a,
> >  				    const char *name, bool primary)
> >  {
> >  	int ret;
> > +	bool do_free = false;
> > +
> > +	if (!a) {
> > +		a = alloc_apertures(1);
> > +		if (!a)
> > +			return -ENOMEM;
> > +
> > +		a->ranges[0].base = 0;
> > +		a->ranges[0].size = ~0;
> > +		do_free = true;
> > +	}
> >  
> >  	mutex_lock(&registration_lock);
> >  	ret = do_remove_conflicting_framebuffers(a, name, primary);
> >  	mutex_unlock(&registration_lock);
> >  
> > +	if (do_free)
> > +		kfree(a);
> > +
> >  	return ret;
> >  }
> >  EXPORT_SYMBOL(remove_conflicting_framebuffers);
> > diff --git a/include/drm/drm_fb_helper.h b/include/drm/drm_fb_helper.h
> > index b069433e7fc1..1c1e53abb25d 100644
> > --- a/include/drm/drm_fb_helper.h
> > +++ b/include/drm/drm_fb_helper.h
> > @@ -566,6 +566,16 @@ static inline void drm_fb_helper_output_poll_changed(struct drm_device *dev)
> >  
> >  #endif
> >  
> > +/**
> > + * drm_fb_helper_remove_conflicting_framebuffers - remove firmware framebuffers
> > + * @a: memory range, users of which are to be removed
> > + * @name: requesting driver name
> > + * @primary: also kick vga16fb if present
> > + *
> > + * This function removes framebuffer devices (eg. initialized by firmware)
> > + * which use memory range described by @a. If @a is NULL all such devices are
> > + * removed.
> > + */
> 
> This looks like misplaced copypasta. You only need this once I think.

Ah no, just a fixup for the lack of kerneldoc we have. Can you pls split
this out into a separate patch?

Thanks, Daniel

> -Daniel
> 
> >  static inline int
> >  drm_fb_helper_remove_conflicting_framebuffers(struct apertures_struct *a,
> >  					      const char *name, bool primary)
> > -- 
> > 2.18.0
> > 
> > _______________________________________________
> > 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

-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx

Re: [PATCH v2 02/12] fbdev: allow apertures == NULL in remove_conflicting_framebuffers()

[Daniel Vetter]

On Fri, Aug 31, 2018 at 10:56:56AM +0200, Daniel Vetter wrote:
> On Thu, Aug 30, 2018 at 11:00:05PM +0200, Michał Mirosław wrote:
> > Interpret (otherwise-invalid) NULL apertures argument to mean all-memory
> > range. This will allow to remove several duplicates of this code from
> > drivers in following patches.
> > 
> > Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
> > [for v1]
> > Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
> > 
> > ---
> > v2: added kerneldoc to corresponding DRM helper
> > ---
> >  drivers/video/fbdev/core/fbmem.c | 14 ++++++++++++++
> >  include/drm/drm_fb_helper.h      | 10 ++++++++++
> >  2 files changed, 24 insertions(+)
> > 
> > diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c
> > index 30a18d4c9de4..0df148eb4699 100644
> > --- a/drivers/video/fbdev/core/fbmem.c
> > +++ b/drivers/video/fbdev/core/fbmem.c
> > @@ -1779,11 +1779,25 @@ int remove_conflicting_framebuffers(struct apertures_struct *a,
> >  				    const char *name, bool primary)
> >  {
> >  	int ret;
> > +	bool do_free = false;
> > +
> > +	if (!a) {
> > +		a = alloc_apertures(1);
> > +		if (!a)
> > +			return -ENOMEM;
> > +
> > +		a->ranges[0].base = 0;
> > +		a->ranges[0].size = ~0;
> > +		do_free = true;
> > +	}
> >  
> >  	mutex_lock(&registration_lock);
> >  	ret = do_remove_conflicting_framebuffers(a, name, primary);
> >  	mutex_unlock(&registration_lock);
> >  
> > +	if (do_free)
> > +		kfree(a);
> > +
> >  	return ret;
> >  }
> >  EXPORT_SYMBOL(remove_conflicting_framebuffers);
> > diff --git a/include/drm/drm_fb_helper.h b/include/drm/drm_fb_helper.h
> > index b069433e7fc1..1c1e53abb25d 100644
> > --- a/include/drm/drm_fb_helper.h
> > +++ b/include/drm/drm_fb_helper.h
> > @@ -566,6 +566,16 @@ static inline void drm_fb_helper_output_poll_changed(struct drm_device *dev)
> >  
> >  #endif
> >  
> > +/**
> > + * drm_fb_helper_remove_conflicting_framebuffers - remove firmware framebuffers
> > + * @a: memory range, users of which are to be removed
> > + * @name: requesting driver name
> > + * @primary: also kick vga16fb if present
> > + *
> > + * This function removes framebuffer devices (eg. initialized by firmware)
> > + * which use memory range described by @a. If @a is NULL all such devices are
> > + * removed.
> > + */
> 
> This looks like misplaced copypasta. You only need this once I think.

Ah no, just a fixup for the lack of kerneldoc we have. Can you pls split
this out into a separate patch?

Thanks, Daniel

> -Daniel
> 
> >  static inline int
> >  drm_fb_helper_remove_conflicting_framebuffers(struct apertures_struct *a,
> >  					      const char *name, bool primary)
> > -- 
> > 2.18.0
> > 
> > _______________________________________________
> > 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

-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch

Re: [PATCH v2 02/12] fbdev: allow apertures == NULL in remove_conflicting_framebuffers()

[Daniel Vetter]

On Fri, Aug 31, 2018 at 10:56:56AM +0200, Daniel Vetter wrote:
> On Thu, Aug 30, 2018 at 11:00:05PM +0200, Michał Mirosław wrote:
> > Interpret (otherwise-invalid) NULL apertures argument to mean all-memory
> > range. This will allow to remove several duplicates of this code from
> > drivers in following patches.
> > 
> > Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
> > [for v1]
> > Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
> > 
> > ---
> > v2: added kerneldoc to corresponding DRM helper
> > ---
> >  drivers/video/fbdev/core/fbmem.c | 14 ++++++++++++++
> >  include/drm/drm_fb_helper.h      | 10 ++++++++++
> >  2 files changed, 24 insertions(+)
> > 
> > diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c
> > index 30a18d4c9de4..0df148eb4699 100644
> > --- a/drivers/video/fbdev/core/fbmem.c
> > +++ b/drivers/video/fbdev/core/fbmem.c
> > @@ -1779,11 +1779,25 @@ int remove_conflicting_framebuffers(struct apertures_struct *a,
> >  				    const char *name, bool primary)
> >  {
> >  	int ret;
> > +	bool do_free = false;
> > +
> > +	if (!a) {
> > +		a = alloc_apertures(1);
> > +		if (!a)
> > +			return -ENOMEM;
> > +
> > +		a->ranges[0].base = 0;
> > +		a->ranges[0].size = ~0;
> > +		do_free = true;
> > +	}
> >  
> >  	mutex_lock(&registration_lock);
> >  	ret = do_remove_conflicting_framebuffers(a, name, primary);
> >  	mutex_unlock(&registration_lock);
> >  
> > +	if (do_free)
> > +		kfree(a);
> > +
> >  	return ret;
> >  }
> >  EXPORT_SYMBOL(remove_conflicting_framebuffers);
> > diff --git a/include/drm/drm_fb_helper.h b/include/drm/drm_fb_helper.h
> > index b069433e7fc1..1c1e53abb25d 100644
> > --- a/include/drm/drm_fb_helper.h
> > +++ b/include/drm/drm_fb_helper.h
> > @@ -566,6 +566,16 @@ static inline void drm_fb_helper_output_poll_changed(struct drm_device *dev)
> >  
> >  #endif
> >  
> > +/**
> > + * drm_fb_helper_remove_conflicting_framebuffers - remove firmware framebuffers
> > + * @a: memory range, users of which are to be removed
> > + * @name: requesting driver name
> > + * @primary: also kick vga16fb if present
> > + *
> > + * This function removes framebuffer devices (eg. initialized by firmware)
> > + * which use memory range described by @a. If @a is NULL all such devices are
> > + * removed.
> > + */
> 
> This looks like misplaced copypasta. You only need this once I think.

Ah no, just a fixup for the lack of kerneldoc we have. Can you pls split
this out into a separate patch?

Thanks, Daniel

> -Daniel
> 
> >  static inline int
> >  drm_fb_helper_remove_conflicting_framebuffers(struct apertures_struct *a,
> >  					      const char *name, bool primary)
> > -- 
> > 2.18.0
> > 
> > _______________________________________________
> > 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

-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
_______________________________________________
Virtualization mailing list
Virtualization@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/virtualization

[PATCH v2 02/12] fbdev: allow apertures == NULL in remove_conflicting_framebuffers()

[Daniel Vetter]

On Fri, Aug 31, 2018 at 10:56:56AM +0200, Daniel Vetter wrote:
> On Thu, Aug 30, 2018 at 11:00:05PM +0200, Micha? Miros?aw wrote:
> > Interpret (otherwise-invalid) NULL apertures argument to mean all-memory
> > range. This will allow to remove several duplicates of this code from
> > drivers in following patches.
> > 
> > Signed-off-by: Micha? Miros?aw <mirq-linux@rere.qmqm.pl>
> > [for v1]
> > Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
> > 
> > ---
> > v2: added kerneldoc to corresponding DRM helper
> > ---
> >  drivers/video/fbdev/core/fbmem.c | 14 ++++++++++++++
> >  include/drm/drm_fb_helper.h      | 10 ++++++++++
> >  2 files changed, 24 insertions(+)
> > 
> > diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c
> > index 30a18d4c9de4..0df148eb4699 100644
> > --- a/drivers/video/fbdev/core/fbmem.c
> > +++ b/drivers/video/fbdev/core/fbmem.c
> > @@ -1779,11 +1779,25 @@ int remove_conflicting_framebuffers(struct apertures_struct *a,
> >  				    const char *name, bool primary)
> >  {
> >  	int ret;
> > +	bool do_free = false;
> > +
> > +	if (!a) {
> > +		a = alloc_apertures(1);
> > +		if (!a)
> > +			return -ENOMEM;
> > +
> > +		a->ranges[0].base = 0;
> > +		a->ranges[0].size = ~0;
> > +		do_free = true;
> > +	}
> >  
> >  	mutex_lock(&registration_lock);
> >  	ret = do_remove_conflicting_framebuffers(a, name, primary);
> >  	mutex_unlock(&registration_lock);
> >  
> > +	if (do_free)
> > +		kfree(a);
> > +
> >  	return ret;
> >  }
> >  EXPORT_SYMBOL(remove_conflicting_framebuffers);
> > diff --git a/include/drm/drm_fb_helper.h b/include/drm/drm_fb_helper.h
> > index b069433e7fc1..1c1e53abb25d 100644
> > --- a/include/drm/drm_fb_helper.h
> > +++ b/include/drm/drm_fb_helper.h
> > @@ -566,6 +566,16 @@ static inline void drm_fb_helper_output_poll_changed(struct drm_device *dev)
> >  
> >  #endif
> >  
> > +/**
> > + * drm_fb_helper_remove_conflicting_framebuffers - remove firmware framebuffers
> > + * @a: memory range, users of which are to be removed
> > + * @name: requesting driver name
> > + * @primary: also kick vga16fb if present
> > + *
> > + * This function removes framebuffer devices (eg. initialized by firmware)
> > + * which use memory range described by @a. If @a is NULL all such devices are
> > + * removed.
> > + */
> 
> This looks like misplaced copypasta. You only need this once I think.

Ah no, just a fixup for the lack of kerneldoc we have. Can you pls split
this out into a separate patch?

Thanks, Daniel

> -Daniel
> 
> >  static inline int
> >  drm_fb_helper_remove_conflicting_framebuffers(struct apertures_struct *a,
> >  					      const char *name, bool primary)
> > -- 
> > 2.18.0
> > 
> > _______________________________________________
> > dri-devel mailing list
> > dri-devel at lists.freedesktop.org
> > https://lists.freedesktop.org/mailman/listinfo/dri-devel
> 
> -- 
> Daniel Vetter
> Software Engineer, Intel Corporation
> http://blog.ffwll.ch

-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch

Re: [PATCH v2 00/12] remove_conflicting_framebuffers() cleanup

[Daniel Vetter]

On Thu, Aug 30, 2018 at 11:00:01PM +0200, Michał Mirosław wrote:
> This series cleans up duplicated code for replacing firmware FB
> driver with proper DRI driver and adds handover support to
> Tegra driver.
> 
> This is a sligtly updated version of a series sent on 24 Nov 2017.
> 
> v2:
>  - rebased on current drm-next
>  - dropped staging/sm750fb changes
>  - added kernel docs for DRM helpers
> 
> Michał Mirosław (12):
>   fbdev: show fbdev number for debugging
>   fbdev: allow apertures == NULL in remove_conflicting_framebuffers()
>   fbdev: add remove_conflicting_pci_framebuffers()
>   drm/amdgpu: use simpler remove_conflicting_pci_framebuffers()
>   drm/bochs: use simpler remove_conflicting_pci_framebuffers()
>   drm/cirrus: use simpler remove_conflicting_pci_framebuffers()
>   drm/mgag200: use simpler remove_conflicting_pci_framebuffers()
>   drm/radeon: use simpler remove_conflicting_pci_framebuffers()
>   drm/virtio: use simpler remove_conflicting_pci_framebuffers()
>   drm/vc4: use simpler remove_conflicting_framebuffers(NULL)
>   drm/sun4i: use simpler remove_conflicting_framebuffers(NULL)
>   drm/tegra: kick out simplefb

Looks very neat. A bit confused about the drm changes in the fbdev-titled
patches 1&3, but I guess we can merge as-is. Up to you whether you want to
split or not I'd say.

Bartlomiej, ack for pullin in this entire pile through drm-misc?

Thanks, Daniel

> 
>  drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c  | 24 +-------------
>  drivers/gpu/drm/bochs/bochs_drv.c        | 18 +----------
>  drivers/gpu/drm/cirrus/cirrus_drv.c      | 23 +-------------
>  drivers/gpu/drm/mgag200/mgag200_drv.c    | 21 +------------
>  drivers/gpu/drm/mgag200/mgag200_main.c   |  9 ------
>  drivers/gpu/drm/radeon/radeon_drv.c      | 23 +-------------
>  drivers/gpu/drm/sun4i/sun4i_drv.c        | 18 +----------
>  drivers/gpu/drm/tegra/drm.c              |  4 +++
>  drivers/gpu/drm/vc4/vc4_drv.c            | 20 +-----------
>  drivers/gpu/drm/virtio/virtgpu_drm_bus.c | 24 ++------------
>  drivers/video/fbdev/core/fbmem.c         | 40 ++++++++++++++++++++++--
>  include/drm/drm_fb_helper.h              | 34 ++++++++++++++++++++
>  include/linux/fb.h                       |  2 ++
>  13 files changed, 88 insertions(+), 172 deletions(-)
> 
> -- 
> 2.18.0
> 
> _______________________________________________
> 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
_______________________________________________
Virtualization mailing list
Virtualization@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/virtualization

Re: [PATCH v2 00/12] remove_conflicting_framebuffers() cleanup

[Daniel Vetter]

On Thu, Aug 30, 2018 at 11:00:01PM +0200, Michał Mirosław wrote:
> This series cleans up duplicated code for replacing firmware FB
> driver with proper DRI driver and adds handover support to
> Tegra driver.
> 
> This is a sligtly updated version of a series sent on 24 Nov 2017.
> 
> v2:
>  - rebased on current drm-next
>  - dropped staging/sm750fb changes
>  - added kernel docs for DRM helpers
> 
> Michał Mirosław (12):
>   fbdev: show fbdev number for debugging
>   fbdev: allow apertures = NULL in remove_conflicting_framebuffers()
>   fbdev: add remove_conflicting_pci_framebuffers()
>   drm/amdgpu: use simpler remove_conflicting_pci_framebuffers()
>   drm/bochs: use simpler remove_conflicting_pci_framebuffers()
>   drm/cirrus: use simpler remove_conflicting_pci_framebuffers()
>   drm/mgag200: use simpler remove_conflicting_pci_framebuffers()
>   drm/radeon: use simpler remove_conflicting_pci_framebuffers()
>   drm/virtio: use simpler remove_conflicting_pci_framebuffers()
>   drm/vc4: use simpler remove_conflicting_framebuffers(NULL)
>   drm/sun4i: use simpler remove_conflicting_framebuffers(NULL)
>   drm/tegra: kick out simplefb

Looks very neat. A bit confused about the drm changes in the fbdev-titled
patches 1&3, but I guess we can merge as-is. Up to you whether you want to
split or not I'd say.

Bartlomiej, ack for pullin in this entire pile through drm-misc?

Thanks, Daniel

> 
>  drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c  | 24 +-------------
>  drivers/gpu/drm/bochs/bochs_drv.c        | 18 +----------
>  drivers/gpu/drm/cirrus/cirrus_drv.c      | 23 +-------------
>  drivers/gpu/drm/mgag200/mgag200_drv.c    | 21 +------------
>  drivers/gpu/drm/mgag200/mgag200_main.c   |  9 ------
>  drivers/gpu/drm/radeon/radeon_drv.c      | 23 +-------------
>  drivers/gpu/drm/sun4i/sun4i_drv.c        | 18 +----------
>  drivers/gpu/drm/tegra/drm.c              |  4 +++
>  drivers/gpu/drm/vc4/vc4_drv.c            | 20 +-----------
>  drivers/gpu/drm/virtio/virtgpu_drm_bus.c | 24 ++------------
>  drivers/video/fbdev/core/fbmem.c         | 40 ++++++++++++++++++++++--
>  include/drm/drm_fb_helper.h              | 34 ++++++++++++++++++++
>  include/linux/fb.h                       |  2 ++
>  13 files changed, 88 insertions(+), 172 deletions(-)
> 
> -- 
> 2.18.0
> 
> _______________________________________________
> 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

[PATCH v2 00/12] remove_conflicting_framebuffers() cleanup

[Daniel Vetter]

On Thu, Aug 30, 2018 at 11:00:01PM +0200, Micha? Miros?aw wrote:
> This series cleans up duplicated code for replacing firmware FB
> driver with proper DRI driver and adds handover support to
> Tegra driver.
> 
> This is a sligtly updated version of a series sent on 24 Nov 2017.
> 
> v2:
>  - rebased on current drm-next
>  - dropped staging/sm750fb changes
>  - added kernel docs for DRM helpers
> 
> Micha? Miros?aw (12):
>   fbdev: show fbdev number for debugging
>   fbdev: allow apertures == NULL in remove_conflicting_framebuffers()
>   fbdev: add remove_conflicting_pci_framebuffers()
>   drm/amdgpu: use simpler remove_conflicting_pci_framebuffers()
>   drm/bochs: use simpler remove_conflicting_pci_framebuffers()
>   drm/cirrus: use simpler remove_conflicting_pci_framebuffers()
>   drm/mgag200: use simpler remove_conflicting_pci_framebuffers()
>   drm/radeon: use simpler remove_conflicting_pci_framebuffers()
>   drm/virtio: use simpler remove_conflicting_pci_framebuffers()
>   drm/vc4: use simpler remove_conflicting_framebuffers(NULL)
>   drm/sun4i: use simpler remove_conflicting_framebuffers(NULL)
>   drm/tegra: kick out simplefb

Looks very neat. A bit confused about the drm changes in the fbdev-titled
patches 1&3, but I guess we can merge as-is. Up to you whether you want to
split or not I'd say.

Bartlomiej, ack for pullin in this entire pile through drm-misc?

Thanks, Daniel

> 
>  drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c  | 24 +-------------
>  drivers/gpu/drm/bochs/bochs_drv.c        | 18 +----------
>  drivers/gpu/drm/cirrus/cirrus_drv.c      | 23 +-------------
>  drivers/gpu/drm/mgag200/mgag200_drv.c    | 21 +------------
>  drivers/gpu/drm/mgag200/mgag200_main.c   |  9 ------
>  drivers/gpu/drm/radeon/radeon_drv.c      | 23 +-------------
>  drivers/gpu/drm/sun4i/sun4i_drv.c        | 18 +----------
>  drivers/gpu/drm/tegra/drm.c              |  4 +++
>  drivers/gpu/drm/vc4/vc4_drv.c            | 20 +-----------
>  drivers/gpu/drm/virtio/virtgpu_drm_bus.c | 24 ++------------
>  drivers/video/fbdev/core/fbmem.c         | 40 ++++++++++++++++++++++--
>  include/drm/drm_fb_helper.h              | 34 ++++++++++++++++++++
>  include/linux/fb.h                       |  2 ++
>  13 files changed, 88 insertions(+), 172 deletions(-)
> 
> -- 
> 2.18.0
> 
> _______________________________________________
> dri-devel mailing list
> dri-devel at lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel

-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch

Re: [PATCH v2 00/12] remove_conflicting_framebuffers() cleanup

[Chris Wilson]

Quoting Daniel Vetter (2018-08-31 10:04:39)
> On Thu, Aug 30, 2018 at 11:00:01PM +0200, Michał Mirosław wrote:
> > This series cleans up duplicated code for replacing firmware FB
> > driver with proper DRI driver and adds handover support to
> > Tegra driver.
> > 
> > This is a sligtly updated version of a series sent on 24 Nov 2017.
> > 
> > v2:
> >  - rebased on current drm-next
> >  - dropped staging/sm750fb changes
> >  - added kernel docs for DRM helpers
> > 
> > Michał Mirosław (12):
> >   fbdev: show fbdev number for debugging
> >   fbdev: allow apertures == NULL in remove_conflicting_framebuffers()
> >   fbdev: add remove_conflicting_pci_framebuffers()
> >   drm/amdgpu: use simpler remove_conflicting_pci_framebuffers()
> >   drm/bochs: use simpler remove_conflicting_pci_framebuffers()
> >   drm/cirrus: use simpler remove_conflicting_pci_framebuffers()
> >   drm/mgag200: use simpler remove_conflicting_pci_framebuffers()
> >   drm/radeon: use simpler remove_conflicting_pci_framebuffers()
> >   drm/virtio: use simpler remove_conflicting_pci_framebuffers()
> >   drm/vc4: use simpler remove_conflicting_framebuffers(NULL)
> >   drm/sun4i: use simpler remove_conflicting_framebuffers(NULL)
> >   drm/tegra: kick out simplefb
> 
> Looks very neat. A bit confused about the drm changes in the fbdev-titled
> patches 1&3, but I guess we can merge as-is. Up to you whether you want to
> split or not I'd say.

Ahah, someone is looking at remove_conflicting_framebuffers(). May I
interest you in a use-after-free?

[  378.423513] stack segment: 0000 [#1] PREEMPT SMP PTI
[  378.423530] CPU: 1 PID: 4338 Comm: pm_rpm Tainted: G     U            4.19.0-rc1-CI-CI_DRM_4746+ #1
[  378.423548] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./J4205-ITX, BIOS P1.10 09/29/2016
[  378.423570] RIP: 0010:do_remove_conflicting_framebuffers+0x56/0x170
[  378.423587] Code: 49 8b 45 00 48 85 c0 74 50 f6 40 0a 08 74 4a 4d 85 e4 48 8b a8 78 04 00 00 74 1f 48 85 ed 74 1a 41 8b 0c 24 31 db 85 c9 74 10 <8b> 55 00 85 d2 75 42 83 c3 01 41 39 1c 24 77 f0 48 85 ed 74 1a 45
[  378.423620] RSP: 0018:ffffc900001dfa88 EFLAGS: 00010202
[  378.423632] RAX: ffff880274470008 RBX: 0000000000000000 RCX: 0000000000000001
[  378.423646] RDX: 0000000000000001 RSI: ffffffffa025c634 RDI: ffff88025cc3b428
[  378.423660] RBP: 6b6b6b6b6b6b6b6b R08: 000000001edaddfa R09: ffffffffa025c634
[  378.423673] R10: ffffc900001dfae8 R11: ffffffff820de938 R12: ffff88025cc3b428
[  378.423687] R13: ffffffff8234ca20 R14: ffffffff8234cb20 R15: 0000000000000001
[  378.423701] FS:  00007fcf03d0a980(0000) GS:ffff880277e80000(0000) knlGS:0000000000000000
[  378.423717] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  378.423729] CR2: 00007fffece1fdb8 CR3: 00000001fe32e000 CR4: 00000000003406e0
[  378.423742] Call Trace:
[  378.423756]  remove_conflicting_framebuffers+0x28/0x40
[  378.423856]  i915_driver_load+0x7f5/0x10c0 [i915]
[  378.423873]  ? _raw_spin_unlock_irqrestore+0x4c/0x60
[  378.423887]  ? lockdep_hardirqs_on+0xe0/0x1b0
[  378.423962]  i915_pci_probe+0x29/0xa0 [i915]
[  378.423977]  pci_device_probe+0xa1/0x130
[  378.423990]  really_probe+0x25d/0x3c0
[  378.424002]  driver_probe_device+0x10a/0x120
[  378.424013]  __driver_attach+0xdb/0x100
[  378.424025]  ? driver_probe_device+0x120/0x120
[  378.424037]  bus_for_each_dev+0x74/0xc0
[  378.424048]  bus_add_driver+0x15f/0x250
[  378.424060]  ? 0xffffffffa069d000
[  378.424070]  driver_register+0x56/0xe0
[  378.424080]  ? 0xffffffffa069d000
[  378.424090]  do_one_initcall+0x58/0x2e0
[  378.424101]  ? rcu_lockdep_current_cpu_online+0x8f/0xd0
[  378.424116]  ? do_init_module+0x1d/0x1ea
[  378.424127]  ? rcu_read_lock_sched_held+0x6f/0x80
[  378.424141]  ? kmem_cache_alloc_trace+0x264/0x290
[  378.424154]  do_init_module+0x56/0x1ea
[  378.424167]  load_module+0x26ba/0x29a0
[  378.424182]  ? vfs_read+0x122/0x140
[  378.424199]  ? __se_sys_finit_module+0xd3/0xf0
[  378.424210]  __se_sys_finit_module+0xd3/0xf0
[  378.424226]  do_syscall_64+0x55/0x190
[  378.424237]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  378.424249] RIP: 0033:0x7fcf02f9b839
[  378.424258] Code: 00 f3 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 1f f6 2c 00 f7 d8 64 89 01 48
[  378.424290] RSP: 002b:00007fffece21f58 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[  378.424307] RAX: ffffffffffffffda RBX: 000056344e1a4d80 RCX: 00007fcf02f9b839
[  378.424321] RDX: 0000000000000000 RSI: 00007fcf026470e5 RDI: 0000000000000003
[  378.424336] RBP: 00007fcf026470e5 R08: 0000000000000000 R09: 0000000000000000
[  378.424349] R10: 0000000000000003 R11: 0000000000000246 R12: 0000000000000000
[  378.424363] R13: 000056344e1a0000 R14: 0000000000000000 R15: 000056344e1a4d80

https://intel-gfx-ci.01.org/tree/drm-tip/IGT_4613/fi-bxt-j4205/dmesg0.log
-Chris
_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx

Re: [PATCH v2 00/12] remove_conflicting_framebuffers() cleanup

[Chris Wilson]

Quoting Daniel Vetter (2018-08-31 10:04:39)
> On Thu, Aug 30, 2018 at 11:00:01PM +0200, Michał Mirosław wrote:
> > This series cleans up duplicated code for replacing firmware FB
> > driver with proper DRI driver and adds handover support to
> > Tegra driver.
> > 
> > This is a sligtly updated version of a series sent on 24 Nov 2017.
> > 
> > v2:
> >  - rebased on current drm-next
> >  - dropped staging/sm750fb changes
> >  - added kernel docs for DRM helpers
> > 
> > Michał Mirosław (12):
> >   fbdev: show fbdev number for debugging
> >   fbdev: allow apertures = NULL in remove_conflicting_framebuffers()
> >   fbdev: add remove_conflicting_pci_framebuffers()
> >   drm/amdgpu: use simpler remove_conflicting_pci_framebuffers()
> >   drm/bochs: use simpler remove_conflicting_pci_framebuffers()
> >   drm/cirrus: use simpler remove_conflicting_pci_framebuffers()
> >   drm/mgag200: use simpler remove_conflicting_pci_framebuffers()
> >   drm/radeon: use simpler remove_conflicting_pci_framebuffers()
> >   drm/virtio: use simpler remove_conflicting_pci_framebuffers()
> >   drm/vc4: use simpler remove_conflicting_framebuffers(NULL)
> >   drm/sun4i: use simpler remove_conflicting_framebuffers(NULL)
> >   drm/tegra: kick out simplefb
> 
> Looks very neat. A bit confused about the drm changes in the fbdev-titled
> patches 1&3, but I guess we can merge as-is. Up to you whether you want to
> split or not I'd say.

Ahah, someone is looking at remove_conflicting_framebuffers(). May I
interest you in a use-after-free?

[  378.423513] stack segment: 0000 [#1] PREEMPT SMP PTI
[  378.423530] CPU: 1 PID: 4338 Comm: pm_rpm Tainted: G     U            4.19.0-rc1-CI-CI_DRM_4746+ #1
[  378.423548] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./J4205-ITX, BIOS P1.10 09/29/2016
[  378.423570] RIP: 0010:do_remove_conflicting_framebuffers+0x56/0x170
[  378.423587] Code: 49 8b 45 00 48 85 c0 74 50 f6 40 0a 08 74 4a 4d 85 e4 48 8b a8 78 04 00 00 74 1f 48 85 ed 74 1a 41 8b 0c 24 31 db 85 c9 74 10 <8b> 55 00 85 d2 75 42 83 c3 01 41 39 1c 24 77 f0 48 85 ed 74 1a 45
[  378.423620] RSP: 0018:ffffc900001dfa88 EFLAGS: 00010202
[  378.423632] RAX: ffff880274470008 RBX: 0000000000000000 RCX: 0000000000000001
[  378.423646] RDX: 0000000000000001 RSI: ffffffffa025c634 RDI: ffff88025cc3b428
[  378.423660] RBP: 6b6b6b6b6b6b6b6b R08: 000000001edaddfa R09: ffffffffa025c634
[  378.423673] R10: ffffc900001dfae8 R11: ffffffff820de938 R12: ffff88025cc3b428
[  378.423687] R13: ffffffff8234ca20 R14: ffffffff8234cb20 R15: 0000000000000001
[  378.423701] FS:  00007fcf03d0a980(0000) GS:ffff880277e80000(0000) knlGS:0000000000000000
[  378.423717] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  378.423729] CR2: 00007fffece1fdb8 CR3: 00000001fe32e000 CR4: 00000000003406e0
[  378.423742] Call Trace:
[  378.423756]  remove_conflicting_framebuffers+0x28/0x40
[  378.423856]  i915_driver_load+0x7f5/0x10c0 [i915]
[  378.423873]  ? _raw_spin_unlock_irqrestore+0x4c/0x60
[  378.423887]  ? lockdep_hardirqs_on+0xe0/0x1b0
[  378.423962]  i915_pci_probe+0x29/0xa0 [i915]
[  378.423977]  pci_device_probe+0xa1/0x130
[  378.423990]  really_probe+0x25d/0x3c0
[  378.424002]  driver_probe_device+0x10a/0x120
[  378.424013]  __driver_attach+0xdb/0x100
[  378.424025]  ? driver_probe_device+0x120/0x120
[  378.424037]  bus_for_each_dev+0x74/0xc0
[  378.424048]  bus_add_driver+0x15f/0x250
[  378.424060]  ? 0xffffffffa069d000
[  378.424070]  driver_register+0x56/0xe0
[  378.424080]  ? 0xffffffffa069d000
[  378.424090]  do_one_initcall+0x58/0x2e0
[  378.424101]  ? rcu_lockdep_current_cpu_online+0x8f/0xd0
[  378.424116]  ? do_init_module+0x1d/0x1ea
[  378.424127]  ? rcu_read_lock_sched_held+0x6f/0x80
[  378.424141]  ? kmem_cache_alloc_trace+0x264/0x290
[  378.424154]  do_init_module+0x56/0x1ea
[  378.424167]  load_module+0x26ba/0x29a0
[  378.424182]  ? vfs_read+0x122/0x140
[  378.424199]  ? __se_sys_finit_module+0xd3/0xf0
[  378.424210]  __se_sys_finit_module+0xd3/0xf0
[  378.424226]  do_syscall_64+0x55/0x190
[  378.424237]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  378.424249] RIP: 0033:0x7fcf02f9b839
[  378.424258] Code: 00 f3 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 1f f6 2c 00 f7 d8 64 89 01 48
[  378.424290] RSP: 002b:00007fffece21f58 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[  378.424307] RAX: ffffffffffffffda RBX: 000056344e1a4d80 RCX: 00007fcf02f9b839
[  378.424321] RDX: 0000000000000000 RSI: 00007fcf026470e5 RDI: 0000000000000003
[  378.424336] RBP: 00007fcf026470e5 R08: 0000000000000000 R09: 0000000000000000
[  378.424349] R10: 0000000000000003 R11: 0000000000000246 R12: 0000000000000000
[  378.424363] R13: 000056344e1a0000 R14: 0000000000000000 R15: 000056344e1a4d80

https://intel-gfx-ci.01.org/tree/drm-tip/IGT_4613/fi-bxt-j4205/dmesg0.log
-Chris

Re: [PATCH v2 00/12] remove_conflicting_framebuffers() cleanup

[Chris Wilson]

Quoting Daniel Vetter (2018-08-31 10:04:39)
> On Thu, Aug 30, 2018 at 11:00:01PM +0200, Michał Mirosław wrote:
> > This series cleans up duplicated code for replacing firmware FB
> > driver with proper DRI driver and adds handover support to
> > Tegra driver.
> > 
> > This is a sligtly updated version of a series sent on 24 Nov 2017.
> > 
> > v2:
> >  - rebased on current drm-next
> >  - dropped staging/sm750fb changes
> >  - added kernel docs for DRM helpers
> > 
> > Michał Mirosław (12):
> >   fbdev: show fbdev number for debugging
> >   fbdev: allow apertures == NULL in remove_conflicting_framebuffers()
> >   fbdev: add remove_conflicting_pci_framebuffers()
> >   drm/amdgpu: use simpler remove_conflicting_pci_framebuffers()
> >   drm/bochs: use simpler remove_conflicting_pci_framebuffers()
> >   drm/cirrus: use simpler remove_conflicting_pci_framebuffers()
> >   drm/mgag200: use simpler remove_conflicting_pci_framebuffers()
> >   drm/radeon: use simpler remove_conflicting_pci_framebuffers()
> >   drm/virtio: use simpler remove_conflicting_pci_framebuffers()
> >   drm/vc4: use simpler remove_conflicting_framebuffers(NULL)
> >   drm/sun4i: use simpler remove_conflicting_framebuffers(NULL)
> >   drm/tegra: kick out simplefb
> 
> Looks very neat. A bit confused about the drm changes in the fbdev-titled
> patches 1&3, but I guess we can merge as-is. Up to you whether you want to
> split or not I'd say.

Ahah, someone is looking at remove_conflicting_framebuffers(). May I
interest you in a use-after-free?

[  378.423513] stack segment: 0000 [#1] PREEMPT SMP PTI
[  378.423530] CPU: 1 PID: 4338 Comm: pm_rpm Tainted: G     U            4.19.0-rc1-CI-CI_DRM_4746+ #1
[  378.423548] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./J4205-ITX, BIOS P1.10 09/29/2016
[  378.423570] RIP: 0010:do_remove_conflicting_framebuffers+0x56/0x170
[  378.423587] Code: 49 8b 45 00 48 85 c0 74 50 f6 40 0a 08 74 4a 4d 85 e4 48 8b a8 78 04 00 00 74 1f 48 85 ed 74 1a 41 8b 0c 24 31 db 85 c9 74 10 <8b> 55 00 85 d2 75 42 83 c3 01 41 39 1c 24 77 f0 48 85 ed 74 1a 45
[  378.423620] RSP: 0018:ffffc900001dfa88 EFLAGS: 00010202
[  378.423632] RAX: ffff880274470008 RBX: 0000000000000000 RCX: 0000000000000001
[  378.423646] RDX: 0000000000000001 RSI: ffffffffa025c634 RDI: ffff88025cc3b428
[  378.423660] RBP: 6b6b6b6b6b6b6b6b R08: 000000001edaddfa R09: ffffffffa025c634
[  378.423673] R10: ffffc900001dfae8 R11: ffffffff820de938 R12: ffff88025cc3b428
[  378.423687] R13: ffffffff8234ca20 R14: ffffffff8234cb20 R15: 0000000000000001
[  378.423701] FS:  00007fcf03d0a980(0000) GS:ffff880277e80000(0000) knlGS:0000000000000000
[  378.423717] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  378.423729] CR2: 00007fffece1fdb8 CR3: 00000001fe32e000 CR4: 00000000003406e0
[  378.423742] Call Trace:
[  378.423756]  remove_conflicting_framebuffers+0x28/0x40
[  378.423856]  i915_driver_load+0x7f5/0x10c0 [i915]
[  378.423873]  ? _raw_spin_unlock_irqrestore+0x4c/0x60
[  378.423887]  ? lockdep_hardirqs_on+0xe0/0x1b0
[  378.423962]  i915_pci_probe+0x29/0xa0 [i915]
[  378.423977]  pci_device_probe+0xa1/0x130
[  378.423990]  really_probe+0x25d/0x3c0
[  378.424002]  driver_probe_device+0x10a/0x120
[  378.424013]  __driver_attach+0xdb/0x100
[  378.424025]  ? driver_probe_device+0x120/0x120
[  378.424037]  bus_for_each_dev+0x74/0xc0
[  378.424048]  bus_add_driver+0x15f/0x250
[  378.424060]  ? 0xffffffffa069d000
[  378.424070]  driver_register+0x56/0xe0
[  378.424080]  ? 0xffffffffa069d000
[  378.424090]  do_one_initcall+0x58/0x2e0
[  378.424101]  ? rcu_lockdep_current_cpu_online+0x8f/0xd0
[  378.424116]  ? do_init_module+0x1d/0x1ea
[  378.424127]  ? rcu_read_lock_sched_held+0x6f/0x80
[  378.424141]  ? kmem_cache_alloc_trace+0x264/0x290
[  378.424154]  do_init_module+0x56/0x1ea
[  378.424167]  load_module+0x26ba/0x29a0
[  378.424182]  ? vfs_read+0x122/0x140
[  378.424199]  ? __se_sys_finit_module+0xd3/0xf0
[  378.424210]  __se_sys_finit_module+0xd3/0xf0
[  378.424226]  do_syscall_64+0x55/0x190
[  378.424237]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  378.424249] RIP: 0033:0x7fcf02f9b839
[  378.424258] Code: 00 f3 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 1f f6 2c 00 f7 d8 64 89 01 48
[  378.424290] RSP: 002b:00007fffece21f58 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[  378.424307] RAX: ffffffffffffffda RBX: 000056344e1a4d80 RCX: 00007fcf02f9b839
[  378.424321] RDX: 0000000000000000 RSI: 00007fcf026470e5 RDI: 0000000000000003
[  378.424336] RBP: 00007fcf026470e5 R08: 0000000000000000 R09: 0000000000000000
[  378.424349] R10: 0000000000000003 R11: 0000000000000246 R12: 0000000000000000
[  378.424363] R13: 000056344e1a0000 R14: 0000000000000000 R15: 000056344e1a4d80

https://intel-gfx-ci.01.org/tree/drm-tip/IGT_4613/fi-bxt-j4205/dmesg0.log
-Chris
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Virtualization@lists.linux-foundation.org
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[PATCH v2 00/12] remove_conflicting_framebuffers() cleanup

[Chris Wilson]

Quoting Daniel Vetter (2018-08-31 10:04:39)
> On Thu, Aug 30, 2018 at 11:00:01PM +0200, Micha? Miros?aw wrote:
> > This series cleans up duplicated code for replacing firmware FB
> > driver with proper DRI driver and adds handover support to
> > Tegra driver.
> > 
> > This is a sligtly updated version of a series sent on 24 Nov 2017.
> > 
> > v2:
> >  - rebased on current drm-next
> >  - dropped staging/sm750fb changes
> >  - added kernel docs for DRM helpers
> > 
> > Micha? Miros?aw (12):
> >   fbdev: show fbdev number for debugging
> >   fbdev: allow apertures == NULL in remove_conflicting_framebuffers()
> >   fbdev: add remove_conflicting_pci_framebuffers()
> >   drm/amdgpu: use simpler remove_conflicting_pci_framebuffers()
> >   drm/bochs: use simpler remove_conflicting_pci_framebuffers()
> >   drm/cirrus: use simpler remove_conflicting_pci_framebuffers()
> >   drm/mgag200: use simpler remove_conflicting_pci_framebuffers()
> >   drm/radeon: use simpler remove_conflicting_pci_framebuffers()
> >   drm/virtio: use simpler remove_conflicting_pci_framebuffers()
> >   drm/vc4: use simpler remove_conflicting_framebuffers(NULL)
> >   drm/sun4i: use simpler remove_conflicting_framebuffers(NULL)
> >   drm/tegra: kick out simplefb
> 
> Looks very neat. A bit confused about the drm changes in the fbdev-titled
> patches 1&3, but I guess we can merge as-is. Up to you whether you want to
> split or not I'd say.

Ahah, someone is looking at remove_conflicting_framebuffers(). May I
interest you in a use-after-free?

[  378.423513] stack segment: 0000 [#1] PREEMPT SMP PTI
[  378.423530] CPU: 1 PID: 4338 Comm: pm_rpm Tainted: G     U            4.19.0-rc1-CI-CI_DRM_4746+ #1
[  378.423548] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./J4205-ITX, BIOS P1.10 09/29/2016
[  378.423570] RIP: 0010:do_remove_conflicting_framebuffers+0x56/0x170
[  378.423587] Code: 49 8b 45 00 48 85 c0 74 50 f6 40 0a 08 74 4a 4d 85 e4 48 8b a8 78 04 00 00 74 1f 48 85 ed 74 1a 41 8b 0c 24 31 db 85 c9 74 10 <8b> 55 00 85 d2 75 42 83 c3 01 41 39 1c 24 77 f0 48 85 ed 74 1a 45
[  378.423620] RSP: 0018:ffffc900001dfa88 EFLAGS: 00010202
[  378.423632] RAX: ffff880274470008 RBX: 0000000000000000 RCX: 0000000000000001
[  378.423646] RDX: 0000000000000001 RSI: ffffffffa025c634 RDI: ffff88025cc3b428
[  378.423660] RBP: 6b6b6b6b6b6b6b6b R08: 000000001edaddfa R09: ffffffffa025c634
[  378.423673] R10: ffffc900001dfae8 R11: ffffffff820de938 R12: ffff88025cc3b428
[  378.423687] R13: ffffffff8234ca20 R14: ffffffff8234cb20 R15: 0000000000000001
[  378.423701] FS:  00007fcf03d0a980(0000) GS:ffff880277e80000(0000) knlGS:0000000000000000
[  378.423717] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  378.423729] CR2: 00007fffece1fdb8 CR3: 00000001fe32e000 CR4: 00000000003406e0
[  378.423742] Call Trace:
[  378.423756]  remove_conflicting_framebuffers+0x28/0x40
[  378.423856]  i915_driver_load+0x7f5/0x10c0 [i915]
[  378.423873]  ? _raw_spin_unlock_irqrestore+0x4c/0x60
[  378.423887]  ? lockdep_hardirqs_on+0xe0/0x1b0
[  378.423962]  i915_pci_probe+0x29/0xa0 [i915]
[  378.423977]  pci_device_probe+0xa1/0x130
[  378.423990]  really_probe+0x25d/0x3c0
[  378.424002]  driver_probe_device+0x10a/0x120
[  378.424013]  __driver_attach+0xdb/0x100
[  378.424025]  ? driver_probe_device+0x120/0x120
[  378.424037]  bus_for_each_dev+0x74/0xc0
[  378.424048]  bus_add_driver+0x15f/0x250
[  378.424060]  ? 0xffffffffa069d000
[  378.424070]  driver_register+0x56/0xe0
[  378.424080]  ? 0xffffffffa069d000
[  378.424090]  do_one_initcall+0x58/0x2e0
[  378.424101]  ? rcu_lockdep_current_cpu_online+0x8f/0xd0
[  378.424116]  ? do_init_module+0x1d/0x1ea
[  378.424127]  ? rcu_read_lock_sched_held+0x6f/0x80
[  378.424141]  ? kmem_cache_alloc_trace+0x264/0x290
[  378.424154]  do_init_module+0x56/0x1ea
[  378.424167]  load_module+0x26ba/0x29a0
[  378.424182]  ? vfs_read+0x122/0x140
[  378.424199]  ? __se_sys_finit_module+0xd3/0xf0
[  378.424210]  __se_sys_finit_module+0xd3/0xf0
[  378.424226]  do_syscall_64+0x55/0x190
[  378.424237]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  378.424249] RIP: 0033:0x7fcf02f9b839
[  378.424258] Code: 00 f3 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 1f f6 2c 00 f7 d8 64 89 01 48
[  378.424290] RSP: 002b:00007fffece21f58 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[  378.424307] RAX: ffffffffffffffda RBX: 000056344e1a4d80 RCX: 00007fcf02f9b839
[  378.424321] RDX: 0000000000000000 RSI: 00007fcf026470e5 RDI: 0000000000000003
[  378.424336] RBP: 00007fcf026470e5 R08: 0000000000000000 R09: 0000000000000000
[  378.424349] R10: 0000000000000003 R11: 0000000000000246 R12: 0000000000000000
[  378.424363] R13: 000056344e1a0000 R14: 0000000000000000 R15: 000056344e1a4d80

https://intel-gfx-ci.01.org/tree/drm-tip/IGT_4613/fi-bxt-j4205/dmesg0.log
-Chris

Re: [PATCH v2 00/12] remove_conflicting_framebuffers() cleanup

[Michał Mirosław]

On Fri, Aug 31, 2018 at 10:07:42AM +0100, Chris Wilson wrote:
[...]
> Ahah, someone is looking at remove_conflicting_framebuffers(). May I
> interest you in a use-after-free?

> [  378.423513] stack segment: 0000 [#1] PREEMPT SMP PTI
> [  378.423530] CPU: 1 PID: 4338 Comm: pm_rpm Tainted: G     U            4.19.0-rc1-CI-CI_DRM_4746+ #1
> [  378.423548] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./J4205-ITX, BIOS P1.10 09/29/2016
> [  378.423570] RIP: 0010:do_remove_conflicting_framebuffers+0x56/0x170
> [  378.423587] Code: 49 8b 45 00 48 85 c0 74 50 f6 40 0a 08 74 4a 4d 85 e4 48 8b a8 78 04 00 00 74 1f 48 85 ed 74 1a 41 8b 0c 24 31 db 85 c9 74 10 <8b> 55 00 85 d2 75 42 83 c3 01 41 39 1c 24 77 f0 48 85 ed 74 1a 45
> [  378.423620] RSP: 0018:ffffc900001dfa88 EFLAGS: 00010202
> [  378.423632] RAX: ffff880274470008 RBX: 0000000000000000 RCX: 0000000000000001
> [  378.423646] RDX: 0000000000000001 RSI: ffffffffa025c634 RDI: ffff88025cc3b428
> [  378.423660] RBP: 6b6b6b6b6b6b6b6b R08: 000000001edaddfa R09: ffffffffa025c634
> [  378.423673] R10: ffffc900001dfae8 R11: ffffffff820de938 R12: ffff88025cc3b428
> [  378.423687] R13: ffffffff8234ca20 R14: ffffffff8234cb20 R15: 0000000000000001
> [  378.423701] FS:  00007fcf03d0a980(0000) GS:ffff880277e80000(0000) knlGS:0000000000000000
> [  378.423717] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [  378.423729] CR2: 00007fffece1fdb8 CR3: 00000001fe32e000 CR4: 00000000003406e0
> [  378.423742] Call Trace:
> [  378.423756]  remove_conflicting_framebuffers+0x28/0x40
> [  378.423856]  i915_driver_load+0x7f5/0x10c0 [i915]
[...]

Looks like registered_fb[] entry is pointing to (partially?) freed or
corrupted fb_info, but I can't see how this could be an effect of
remove_conflicting_framebuffers().

Best Regards,
Michał Mirosław

Re: [PATCH v2 00/12] remove_conflicting_framebuffers() cleanup

[Michał Mirosław]

On Fri, Aug 31, 2018 at 10:07:42AM +0100, Chris Wilson wrote:
[...]
> Ahah, someone is looking at remove_conflicting_framebuffers(). May I
> interest you in a use-after-free?

> [  378.423513] stack segment: 0000 [#1] PREEMPT SMP PTI
> [  378.423530] CPU: 1 PID: 4338 Comm: pm_rpm Tainted: G     U            4.19.0-rc1-CI-CI_DRM_4746+ #1
> [  378.423548] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./J4205-ITX, BIOS P1.10 09/29/2016
> [  378.423570] RIP: 0010:do_remove_conflicting_framebuffers+0x56/0x170
> [  378.423587] Code: 49 8b 45 00 48 85 c0 74 50 f6 40 0a 08 74 4a 4d 85 e4 48 8b a8 78 04 00 00 74 1f 48 85 ed 74 1a 41 8b 0c 24 31 db 85 c9 74 10 <8b> 55 00 85 d2 75 42 83 c3 01 41 39 1c 24 77 f0 48 85 ed 74 1a 45
> [  378.423620] RSP: 0018:ffffc900001dfa88 EFLAGS: 00010202
> [  378.423632] RAX: ffff880274470008 RBX: 0000000000000000 RCX: 0000000000000001
> [  378.423646] RDX: 0000000000000001 RSI: ffffffffa025c634 RDI: ffff88025cc3b428
> [  378.423660] RBP: 6b6b6b6b6b6b6b6b R08: 000000001edaddfa R09: ffffffffa025c634
> [  378.423673] R10: ffffc900001dfae8 R11: ffffffff820de938 R12: ffff88025cc3b428
> [  378.423687] R13: ffffffff8234ca20 R14: ffffffff8234cb20 R15: 0000000000000001
> [  378.423701] FS:  00007fcf03d0a980(0000) GS:ffff880277e80000(0000) knlGS:0000000000000000
> [  378.423717] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [  378.423729] CR2: 00007fffece1fdb8 CR3: 00000001fe32e000 CR4: 00000000003406e0
> [  378.423742] Call Trace:
> [  378.423756]  remove_conflicting_framebuffers+0x28/0x40
> [  378.423856]  i915_driver_load+0x7f5/0x10c0 [i915]
[...]

Looks like registered_fb[] entry is pointing to (partially?) freed or
corrupted fb_info, but I can't see how this could be an effect of
remove_conflicting_framebuffers().

Best Regards,
Micha³ Miros³aw

[PATCH v2 00/12] remove_conflicting_framebuffers() cleanup

[Michał Mirosław]

On Fri, Aug 31, 2018 at 10:07:42AM +0100, Chris Wilson wrote:
[...]
> Ahah, someone is looking at remove_conflicting_framebuffers(). May I
> interest you in a use-after-free?

> [  378.423513] stack segment: 0000 [#1] PREEMPT SMP PTI
> [  378.423530] CPU: 1 PID: 4338 Comm: pm_rpm Tainted: G     U            4.19.0-rc1-CI-CI_DRM_4746+ #1
> [  378.423548] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./J4205-ITX, BIOS P1.10 09/29/2016
> [  378.423570] RIP: 0010:do_remove_conflicting_framebuffers+0x56/0x170
> [  378.423587] Code: 49 8b 45 00 48 85 c0 74 50 f6 40 0a 08 74 4a 4d 85 e4 48 8b a8 78 04 00 00 74 1f 48 85 ed 74 1a 41 8b 0c 24 31 db 85 c9 74 10 <8b> 55 00 85 d2 75 42 83 c3 01 41 39 1c 24 77 f0 48 85 ed 74 1a 45
> [  378.423620] RSP: 0018:ffffc900001dfa88 EFLAGS: 00010202
> [  378.423632] RAX: ffff880274470008 RBX: 0000000000000000 RCX: 0000000000000001
> [  378.423646] RDX: 0000000000000001 RSI: ffffffffa025c634 RDI: ffff88025cc3b428
> [  378.423660] RBP: 6b6b6b6b6b6b6b6b R08: 000000001edaddfa R09: ffffffffa025c634
> [  378.423673] R10: ffffc900001dfae8 R11: ffffffff820de938 R12: ffff88025cc3b428
> [  378.423687] R13: ffffffff8234ca20 R14: ffffffff8234cb20 R15: 0000000000000001
> [  378.423701] FS:  00007fcf03d0a980(0000) GS:ffff880277e80000(0000) knlGS:0000000000000000
> [  378.423717] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [  378.423729] CR2: 00007fffece1fdb8 CR3: 00000001fe32e000 CR4: 00000000003406e0
> [  378.423742] Call Trace:
> [  378.423756]  remove_conflicting_framebuffers+0x28/0x40
> [  378.423856]  i915_driver_load+0x7f5/0x10c0 [i915]
[...]

Looks like registered_fb[] entry is pointing to (partially?) freed or
corrupted fb_info, but I can't see how this could be an effect of
remove_conflicting_framebuffers().

Best Regards,
Micha? Miros?aw

[PATCH v3 00/13] remove_conflicting_framebuffers() cleanup

[Michał Mirosław]

This series cleans up duplicated code for replacing firmware FB
driver with proper DRI driver and adds handover support to
Tegra driver.

This is a sligtly updated version of a series sent on 24 Nov 2017.

---
v2:
 - rebased on current drm-next
 - dropped staging/sm750fb changes
 - added kernel docs for DRM helpers
v3:
 - move kerneldoc to fbdev, where functions are implemented
 - split kerneldoc for remove_conflicting_framebuffers()
 - propagate return value in remove_conflicting_pci_framebuffers()

---
Michał Mirosław (13):
  fbdev: show fbdev number for debugging
  fbdev: allow apertures == NULL in remove_conflicting_framebuffers()
  fbdev: add kerneldoc do remove_conflicting_framebuffers()
  fbdev: add remove_conflicting_pci_framebuffers()
  drm/amdgpu: use simpler remove_conflicting_pci_framebuffers()
  drm/bochs: use simpler remove_conflicting_pci_framebuffers()
  drm/cirrus: use simpler remove_conflicting_pci_framebuffers()
  drm/mgag200: use simpler remove_conflicting_pci_framebuffers()
  drm/radeon: use simpler remove_conflicting_pci_framebuffers()
  drm/virtio: use simpler remove_conflicting_pci_framebuffers()
  drm/vc4: use simpler remove_conflicting_framebuffers(NULL)
  drm/sun4i: use simpler remove_conflicting_framebuffers(NULL)
  drm/tegra: kick out simplefb

 drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c  | 24 +--------
 drivers/gpu/drm/bochs/bochs_drv.c        | 18 +------
 drivers/gpu/drm/cirrus/cirrus_drv.c      | 23 +--------
 drivers/gpu/drm/mgag200/mgag200_drv.c    | 21 +-------
 drivers/gpu/drm/mgag200/mgag200_main.c   |  9 ----
 drivers/gpu/drm/radeon/radeon_drv.c      | 23 +--------
 drivers/gpu/drm/sun4i/sun4i_drv.c        | 18 +------
 drivers/gpu/drm/tegra/drm.c              |  4 ++
 drivers/gpu/drm/vc4/vc4_drv.c            | 20 +-------
 drivers/gpu/drm/virtio/virtgpu_drm_bus.c | 24 ++-------
 drivers/video/fbdev/core/fbmem.c         | 63 +++++++++++++++++++++++-
 include/drm/drm_fb_helper.h              | 12 +++++
 include/linux/fb.h                       |  2 +
 13 files changed, 89 insertions(+), 172 deletions(-)

-- 
2.18.0

_______________________________________________
Virtualization mailing list
Virtualization@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/virtualization

[PATCH v3 00/13] remove_conflicting_framebuffers() cleanup

[Michał Mirosław]

This series cleans up duplicated code for replacing firmware FB
driver with proper DRI driver and adds handover support to
Tegra driver.

This is a sligtly updated version of a series sent on 24 Nov 2017.

---
v2:
 - rebased on current drm-next
 - dropped staging/sm750fb changes
 - added kernel docs for DRM helpers
v3:
 - move kerneldoc to fbdev, where functions are implemented
 - split kerneldoc for remove_conflicting_framebuffers()
 - propagate return value in remove_conflicting_pci_framebuffers()

---
Michał Mirosław (13):
  fbdev: show fbdev number for debugging
  fbdev: allow apertures = NULL in remove_conflicting_framebuffers()
  fbdev: add kerneldoc do remove_conflicting_framebuffers()
  fbdev: add remove_conflicting_pci_framebuffers()
  drm/amdgpu: use simpler remove_conflicting_pci_framebuffers()
  drm/bochs: use simpler remove_conflicting_pci_framebuffers()
  drm/cirrus: use simpler remove_conflicting_pci_framebuffers()
  drm/mgag200: use simpler remove_conflicting_pci_framebuffers()
  drm/radeon: use simpler remove_conflicting_pci_framebuffers()
  drm/virtio: use simpler remove_conflicting_pci_framebuffers()
  drm/vc4: use simpler remove_conflicting_framebuffers(NULL)
  drm/sun4i: use simpler remove_conflicting_framebuffers(NULL)
  drm/tegra: kick out simplefb

 drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c  | 24 +--------
 drivers/gpu/drm/bochs/bochs_drv.c        | 18 +------
 drivers/gpu/drm/cirrus/cirrus_drv.c      | 23 +--------
 drivers/gpu/drm/mgag200/mgag200_drv.c    | 21 +-------
 drivers/gpu/drm/mgag200/mgag200_main.c   |  9 ----
 drivers/gpu/drm/radeon/radeon_drv.c      | 23 +--------
 drivers/gpu/drm/sun4i/sun4i_drv.c        | 18 +------
 drivers/gpu/drm/tegra/drm.c              |  4 ++
 drivers/gpu/drm/vc4/vc4_drv.c            | 20 +-------
 drivers/gpu/drm/virtio/virtgpu_drm_bus.c | 24 ++-------
 drivers/video/fbdev/core/fbmem.c         | 63 +++++++++++++++++++++++-
 include/drm/drm_fb_helper.h              | 12 +++++
 include/linux/fb.h                       |  2 +
 13 files changed, 89 insertions(+), 172 deletions(-)

-- 
2.18.0

[PATCH v3 00/13] remove_conflicting_framebuffers() cleanup

[Michał Mirosław]

This series cleans up duplicated code for replacing firmware FB
driver with proper DRI driver and adds handover support to
Tegra driver.

This is a sligtly updated version of a series sent on 24 Nov 2017.

---
v2:
 - rebased on current drm-next
 - dropped staging/sm750fb changes
 - added kernel docs for DRM helpers
v3:
 - move kerneldoc to fbdev, where functions are implemented
 - split kerneldoc for remove_conflicting_framebuffers()
 - propagate return value in remove_conflicting_pci_framebuffers()

---
Micha? Miros?aw (13):
  fbdev: show fbdev number for debugging
  fbdev: allow apertures == NULL in remove_conflicting_framebuffers()
  fbdev: add kerneldoc do remove_conflicting_framebuffers()
  fbdev: add remove_conflicting_pci_framebuffers()
  drm/amdgpu: use simpler remove_conflicting_pci_framebuffers()
  drm/bochs: use simpler remove_conflicting_pci_framebuffers()
  drm/cirrus: use simpler remove_conflicting_pci_framebuffers()
  drm/mgag200: use simpler remove_conflicting_pci_framebuffers()
  drm/radeon: use simpler remove_conflicting_pci_framebuffers()
  drm/virtio: use simpler remove_conflicting_pci_framebuffers()
  drm/vc4: use simpler remove_conflicting_framebuffers(NULL)
  drm/sun4i: use simpler remove_conflicting_framebuffers(NULL)
  drm/tegra: kick out simplefb

 drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c  | 24 +--------
 drivers/gpu/drm/bochs/bochs_drv.c        | 18 +------
 drivers/gpu/drm/cirrus/cirrus_drv.c      | 23 +--------
 drivers/gpu/drm/mgag200/mgag200_drv.c    | 21 +-------
 drivers/gpu/drm/mgag200/mgag200_main.c   |  9 ----
 drivers/gpu/drm/radeon/radeon_drv.c      | 23 +--------
 drivers/gpu/drm/sun4i/sun4i_drv.c        | 18 +------
 drivers/gpu/drm/tegra/drm.c              |  4 ++
 drivers/gpu/drm/vc4/vc4_drv.c            | 20 +-------
 drivers/gpu/drm/virtio/virtgpu_drm_bus.c | 24 ++-------
 drivers/video/fbdev/core/fbmem.c         | 63 +++++++++++++++++++++++-
 include/drm/drm_fb_helper.h              | 12 +++++
 include/linux/fb.h                       |  2 +
 13 files changed, 89 insertions(+), 172 deletions(-)

-- 
2.18.0

[PATCH v3 02/13] fbdev: allow apertures == NULL in remove_conflicting_framebuffers()

[Michał Mirosław]

Interpret (otherwise-invalid) NULL apertures argument to mean all-memory
range. This will allow to remove several duplicates of this code
from drivers in following patches.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>

---
v2: added kerneldoc to corresponding DRM helper
v3: split kerneldoc to another patch
---
 drivers/video/fbdev/core/fbmem.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c
index 30a18d4c9de4..0df148eb4699 100644
--- a/drivers/video/fbdev/core/fbmem.c
+++ b/drivers/video/fbdev/core/fbmem.c
@@ -1779,11 +1779,25 @@ int remove_conflicting_framebuffers(struct apertures_struct *a,
 				    const char *name, bool primary)
 {
 	int ret;
+	bool do_free = false;
+
+	if (!a) {
+		a = alloc_apertures(1);
+		if (!a)
+			return -ENOMEM;
+
+		a->ranges[0].base = 0;
+		a->ranges[0].size = ~0;
+		do_free = true;
+	}
 
 	mutex_lock(&registration_lock);
 	ret = do_remove_conflicting_framebuffers(a, name, primary);
 	mutex_unlock(&registration_lock);
 
+	if (do_free)
+		kfree(a);
+
 	return ret;
 }
 EXPORT_SYMBOL(remove_conflicting_framebuffers);
-- 
2.18.0

_______________________________________________
Virtualization mailing list
Virtualization@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/virtualization

[PATCH v3 01/13] fbdev: show fbdev number for debugging

[Michał Mirosław]

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/video/fbdev/core/fbmem.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c
index f741ba8df01b..30a18d4c9de4 100644
--- a/drivers/video/fbdev/core/fbmem.c
+++ b/drivers/video/fbdev/core/fbmem.c
@@ -1618,8 +1618,8 @@ static int do_remove_conflicting_framebuffers(struct apertures_struct *a,
 			(primary && gen_aper && gen_aper->count &&
 			 gen_aper->ranges[0].base == VGA_FB_PHYS)) {
 
-			printk(KERN_INFO "fb: switching to %s from %s\n",
-			       name, registered_fb[i]->fix.id);
+			printk(KERN_INFO "fb%d: switching to %s from %s\n",
+			       i, name, registered_fb[i]->fix.id);
 			ret = do_unregister_framebuffer(registered_fb[i]);
 			if (ret)
 				return ret;
-- 
2.18.0


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

[PATCH v3 02/13] fbdev: allow apertures == NULL in remove_conflicting_framebuffers()

[Michał Mirosław]

Interpret (otherwise-invalid) NULL apertures argument to mean all-memory
range. This will allow to remove several duplicates of this code
from drivers in following patches.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>

---
v2: added kerneldoc to corresponding DRM helper
v3: split kerneldoc to another patch
---
 drivers/video/fbdev/core/fbmem.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c
index 30a18d4c9de4..0df148eb4699 100644
--- a/drivers/video/fbdev/core/fbmem.c
+++ b/drivers/video/fbdev/core/fbmem.c
@@ -1779,11 +1779,25 @@ int remove_conflicting_framebuffers(struct apertures_struct *a,
 				    const char *name, bool primary)
 {
 	int ret;
+	bool do_free = false;
+
+	if (!a) {
+		a = alloc_apertures(1);
+		if (!a)
+			return -ENOMEM;
+
+		a->ranges[0].base = 0;
+		a->ranges[0].size = ~0;
+		do_free = true;
+	}
 
 	mutex_lock(&registration_lock);
 	ret = do_remove_conflicting_framebuffers(a, name, primary);
 	mutex_unlock(&registration_lock);
 
+	if (do_free)
+		kfree(a);
+
 	return ret;
 }
 EXPORT_SYMBOL(remove_conflicting_framebuffers);
-- 
2.18.0

[PATCH v3 01/13] fbdev: show fbdev number for debugging

[Michał Mirosław]

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/video/fbdev/core/fbmem.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c
index f741ba8df01b..30a18d4c9de4 100644
--- a/drivers/video/fbdev/core/fbmem.c
+++ b/drivers/video/fbdev/core/fbmem.c
@@ -1618,8 +1618,8 @@ static int do_remove_conflicting_framebuffers(struct apertures_struct *a,
 			(primary && gen_aper && gen_aper->count &&
 			 gen_aper->ranges[0].base = VGA_FB_PHYS)) {
 
-			printk(KERN_INFO "fb: switching to %s from %s\n",
-			       name, registered_fb[i]->fix.id);
+			printk(KERN_INFO "fb%d: switching to %s from %s\n",
+			       i, name, registered_fb[i]->fix.id);
 			ret = do_unregister_framebuffer(registered_fb[i]);
 			if (ret)
 				return ret;
-- 
2.18.0

[PATCH v3 01/13] fbdev: show fbdev number for debugging

[Michał Mirosław]

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/video/fbdev/core/fbmem.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c
index f741ba8df01b..30a18d4c9de4 100644
--- a/drivers/video/fbdev/core/fbmem.c
+++ b/drivers/video/fbdev/core/fbmem.c
@@ -1618,8 +1618,8 @@ static int do_remove_conflicting_framebuffers(struct apertures_struct *a,
 			(primary && gen_aper && gen_aper->count &&
 			 gen_aper->ranges[0].base == VGA_FB_PHYS)) {
 
-			printk(KERN_INFO "fb: switching to %s from %s\n",
-			       name, registered_fb[i]->fix.id);
+			printk(KERN_INFO "fb%d: switching to %s from %s\n",
+			       i, name, registered_fb[i]->fix.id);
 			ret = do_unregister_framebuffer(registered_fb[i]);
 			if (ret)
 				return ret;
-- 
2.18.0

_______________________________________________
Virtualization mailing list
Virtualization@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/virtualization

[PATCH v3 02/13] fbdev: allow apertures == NULL in remove_conflicting_framebuffers()

[Michał Mirosław]

Interpret (otherwise-invalid) NULL apertures argument to mean all-memory
range. This will allow to remove several duplicates of this code
from drivers in following patches.

Signed-off-by: Micha? Miros?aw <mirq-linux@rere.qmqm.pl>
Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>

---
v2: added kerneldoc to corresponding DRM helper
v3: split kerneldoc to another patch
---
 drivers/video/fbdev/core/fbmem.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c
index 30a18d4c9de4..0df148eb4699 100644
--- a/drivers/video/fbdev/core/fbmem.c
+++ b/drivers/video/fbdev/core/fbmem.c
@@ -1779,11 +1779,25 @@ int remove_conflicting_framebuffers(struct apertures_struct *a,
 				    const char *name, bool primary)
 {
 	int ret;
+	bool do_free = false;
+
+	if (!a) {
+		a = alloc_apertures(1);
+		if (!a)
+			return -ENOMEM;
+
+		a->ranges[0].base = 0;
+		a->ranges[0].size = ~0;
+		do_free = true;
+	}
 
 	mutex_lock(&registration_lock);
 	ret = do_remove_conflicting_framebuffers(a, name, primary);
 	mutex_unlock(&registration_lock);
 
+	if (do_free)
+		kfree(a);
+
 	return ret;
 }
 EXPORT_SYMBOL(remove_conflicting_framebuffers);
-- 
2.18.0

[PATCH v3 01/13] fbdev: show fbdev number for debugging

[Michał Mirosław]

Signed-off-by: Micha? Miros?aw <mirq-linux@rere.qmqm.pl>
Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/video/fbdev/core/fbmem.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c
index f741ba8df01b..30a18d4c9de4 100644
--- a/drivers/video/fbdev/core/fbmem.c
+++ b/drivers/video/fbdev/core/fbmem.c
@@ -1618,8 +1618,8 @@ static int do_remove_conflicting_framebuffers(struct apertures_struct *a,
 			(primary && gen_aper && gen_aper->count &&
 			 gen_aper->ranges[0].base == VGA_FB_PHYS)) {
 
-			printk(KERN_INFO "fb: switching to %s from %s\n",
-			       name, registered_fb[i]->fix.id);
+			printk(KERN_INFO "fb%d: switching to %s from %s\n",
+			       i, name, registered_fb[i]->fix.id);
 			ret = do_unregister_framebuffer(registered_fb[i]);
 			if (ret)
 				return ret;
-- 
2.18.0

[PATCH v3 03/13] fbdev: add kerneldoc do remove_conflicting_framebuffers()

[Michał Mirosław]

Document remove_conflicting_framebuffers() behaviour.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
---
 drivers/video/fbdev/core/fbmem.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c
index 0df148eb4699..2de93b5014e3 100644
--- a/drivers/video/fbdev/core/fbmem.c
+++ b/drivers/video/fbdev/core/fbmem.c
@@ -1775,6 +1775,16 @@ int unlink_framebuffer(struct fb_info *fb_info)
 }
 EXPORT_SYMBOL(unlink_framebuffer);
 
+/**
+ * remove_conflicting_framebuffers - remove firmware-configured framebuffers
+ * @a: memory range, users of which are to be removed
+ * @name: requesting driver name
+ * @primary: also kick vga16fb if present
+ *
+ * This function removes framebuffer devices (initialized by firmware/bootloader)
+ * which use memory range described by @a. If @a is NULL all such devices are
+ * removed.
+ */
 int remove_conflicting_framebuffers(struct apertures_struct *a,
 				    const char *name, bool primary)
 {
-- 
2.18.0


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

[PATCH v3 04/13] fbdev: add remove_conflicting_pci_framebuffers()

[Michał Mirosław]

Almost all PCI drivers using remove_conflicting_framebuffers() wrap it
with the same code.

---
v2: add kerneldoc for DRM helper
v3: propagate remove_conflicting_framebuffers() return value
  + move kerneldoc to where function is implemented

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
---
 drivers/video/fbdev/core/fbmem.c | 35 ++++++++++++++++++++++++++++++++
 include/drm/drm_fb_helper.h      | 12 +++++++++++
 include/linux/fb.h               |  2 ++
 3 files changed, 49 insertions(+)

diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c
index 2de93b5014e3..cd96b1c62bbe 100644
--- a/drivers/video/fbdev/core/fbmem.c
+++ b/drivers/video/fbdev/core/fbmem.c
@@ -34,6 +34,7 @@
 #include <linux/fb.h>
 #include <linux/fbcon.h>
 #include <linux/mem_encrypt.h>
+#include <linux/pci.h>
 
 #include <asm/fb.h>
 
@@ -1812,6 +1813,40 @@ int remove_conflicting_framebuffers(struct apertures_struct *a,
 }
 EXPORT_SYMBOL(remove_conflicting_framebuffers);
 
+/**
+ * remove_conflicting_pci_framebuffers - remove firmware-configured framebuffers for PCI devices
+ * @pdev: PCI device
+ * @resource_id: index of PCI BAR configuring framebuffer memory
+ * @name: requesting driver name
+ *
+ * This function removes framebuffer devices (eg. initialized by firmware)
+ * using memory range configured for @pdev's BAR @resource_id.
+ *
+ * The function assumes that PCI device with shadowed ROM drives a primary
+ * display and so kicks out vga16fb.
+ */
+int remove_conflicting_pci_framebuffers(struct pci_dev *pdev, int res_id, const char *name)
+{
+	struct apertures_struct *ap;
+	bool primary = false;
+	int err;
+
+	ap = alloc_apertures(1);
+	if (!ap)
+		return -ENOMEM;
+
+	ap->ranges[0].base = pci_resource_start(pdev, res_id);
+	ap->ranges[0].size = pci_resource_len(pdev, res_id);
+#ifdef CONFIG_X86
+	primary = pdev->resource[PCI_ROM_RESOURCE].flags &
+					IORESOURCE_ROM_SHADOW;
+#endif
+	err = remove_conflicting_framebuffers(ap, name, primary);
+	kfree(ap);
+	return err;
+}
+EXPORT_SYMBOL(remove_conflicting_pci_framebuffers);
+
 /**
  *	register_framebuffer - registers a frame buffer device
  *	@fb_info: frame buffer info structure
diff --git a/include/drm/drm_fb_helper.h b/include/drm/drm_fb_helper.h
index b069433e7fc1..20ea856db900 100644
--- a/include/drm/drm_fb_helper.h
+++ b/include/drm/drm_fb_helper.h
@@ -577,4 +577,16 @@ drm_fb_helper_remove_conflicting_framebuffers(struct apertures_struct *a,
 #endif
 }
 
+static inline int
+drm_fb_helper_remove_conflicting_pci_framebuffers(struct pci_dev *pdev,
+						  int resource_id,
+						  const char *name)
+{
+#if IS_REACHABLE(CONFIG_FB)
+	return remove_conflicting_pci_framebuffers(pdev, resource_id, name);
+#else
+	return 0;
+#endif
+}
+
 #endif
diff --git a/include/linux/fb.h b/include/linux/fb.h
index aa74a228bb92..abeffd55b66a 100644
--- a/include/linux/fb.h
+++ b/include/linux/fb.h
@@ -632,6 +632,8 @@ extern ssize_t fb_sys_write(struct fb_info *info, const char __user *buf,
 extern int register_framebuffer(struct fb_info *fb_info);
 extern int unregister_framebuffer(struct fb_info *fb_info);
 extern int unlink_framebuffer(struct fb_info *fb_info);
+extern int remove_conflicting_pci_framebuffers(struct pci_dev *pdev, int res_id,
+					       const char *name);
 extern int remove_conflicting_framebuffers(struct apertures_struct *a,
 					   const char *name, bool primary);
 extern int fb_prepare_logo(struct fb_info *fb_info, int rotate);
-- 
2.18.0


_______________________________________________
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http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

[PATCH v3 04/13] fbdev: add remove_conflicting_pci_framebuffers()

[Michał Mirosław]

Almost all PCI drivers using remove_conflicting_framebuffers() wrap it
with the same code.

---
v2: add kerneldoc for DRM helper
v3: propagate remove_conflicting_framebuffers() return value
  + move kerneldoc to where function is implemented

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
---
 drivers/video/fbdev/core/fbmem.c | 35 ++++++++++++++++++++++++++++++++
 include/drm/drm_fb_helper.h      | 12 +++++++++++
 include/linux/fb.h               |  2 ++
 3 files changed, 49 insertions(+)

diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c
index 2de93b5014e3..cd96b1c62bbe 100644
--- a/drivers/video/fbdev/core/fbmem.c
+++ b/drivers/video/fbdev/core/fbmem.c
@@ -34,6 +34,7 @@
 #include <linux/fb.h>
 #include <linux/fbcon.h>
 #include <linux/mem_encrypt.h>
+#include <linux/pci.h>
 
 #include <asm/fb.h>
 
@@ -1812,6 +1813,40 @@ int remove_conflicting_framebuffers(struct apertures_struct *a,
 }
 EXPORT_SYMBOL(remove_conflicting_framebuffers);
 
+/**
+ * remove_conflicting_pci_framebuffers - remove firmware-configured framebuffers for PCI devices
+ * @pdev: PCI device
+ * @resource_id: index of PCI BAR configuring framebuffer memory
+ * @name: requesting driver name
+ *
+ * This function removes framebuffer devices (eg. initialized by firmware)
+ * using memory range configured for @pdev's BAR @resource_id.
+ *
+ * The function assumes that PCI device with shadowed ROM drives a primary
+ * display and so kicks out vga16fb.
+ */
+int remove_conflicting_pci_framebuffers(struct pci_dev *pdev, int res_id, const char *name)
+{
+	struct apertures_struct *ap;
+	bool primary = false;
+	int err;
+
+	ap = alloc_apertures(1);
+	if (!ap)
+		return -ENOMEM;
+
+	ap->ranges[0].base = pci_resource_start(pdev, res_id);
+	ap->ranges[0].size = pci_resource_len(pdev, res_id);
+#ifdef CONFIG_X86
+	primary = pdev->resource[PCI_ROM_RESOURCE].flags &
+					IORESOURCE_ROM_SHADOW;
+#endif
+	err = remove_conflicting_framebuffers(ap, name, primary);
+	kfree(ap);
+	return err;
+}
+EXPORT_SYMBOL(remove_conflicting_pci_framebuffers);
+
 /**
  *	register_framebuffer - registers a frame buffer device
  *	@fb_info: frame buffer info structure
diff --git a/include/drm/drm_fb_helper.h b/include/drm/drm_fb_helper.h
index b069433e7fc1..20ea856db900 100644
--- a/include/drm/drm_fb_helper.h
+++ b/include/drm/drm_fb_helper.h
@@ -577,4 +577,16 @@ drm_fb_helper_remove_conflicting_framebuffers(struct apertures_struct *a,
 #endif
 }
 
+static inline int
+drm_fb_helper_remove_conflicting_pci_framebuffers(struct pci_dev *pdev,
+						  int resource_id,
+						  const char *name)
+{
+#if IS_REACHABLE(CONFIG_FB)
+	return remove_conflicting_pci_framebuffers(pdev, resource_id, name);
+#else
+	return 0;
+#endif
+}
+
 #endif
diff --git a/include/linux/fb.h b/include/linux/fb.h
index aa74a228bb92..abeffd55b66a 100644
--- a/include/linux/fb.h
+++ b/include/linux/fb.h
@@ -632,6 +632,8 @@ extern ssize_t fb_sys_write(struct fb_info *info, const char __user *buf,
 extern int register_framebuffer(struct fb_info *fb_info);
 extern int unregister_framebuffer(struct fb_info *fb_info);
 extern int unlink_framebuffer(struct fb_info *fb_info);
+extern int remove_conflicting_pci_framebuffers(struct pci_dev *pdev, int res_id,
+					       const char *name);
 extern int remove_conflicting_framebuffers(struct apertures_struct *a,
 					   const char *name, bool primary);
 extern int fb_prepare_logo(struct fb_info *fb_info, int rotate);
-- 
2.18.0

[PATCH v3 03/13] fbdev: add kerneldoc do remove_conflicting_framebuffers()

[Michał Mirosław]

Document remove_conflicting_framebuffers() behaviour.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
---
 drivers/video/fbdev/core/fbmem.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c
index 0df148eb4699..2de93b5014e3 100644
--- a/drivers/video/fbdev/core/fbmem.c
+++ b/drivers/video/fbdev/core/fbmem.c
@@ -1775,6 +1775,16 @@ int unlink_framebuffer(struct fb_info *fb_info)
 }
 EXPORT_SYMBOL(unlink_framebuffer);
 
+/**
+ * remove_conflicting_framebuffers - remove firmware-configured framebuffers
+ * @a: memory range, users of which are to be removed
+ * @name: requesting driver name
+ * @primary: also kick vga16fb if present
+ *
+ * This function removes framebuffer devices (initialized by firmware/bootloader)
+ * which use memory range described by @a. If @a is NULL all such devices are
+ * removed.
+ */
 int remove_conflicting_framebuffers(struct apertures_struct *a,
 				    const char *name, bool primary)
 {
-- 
2.18.0

[PATCH v3 03/13] fbdev: add kerneldoc do remove_conflicting_framebuffers()

[Michał Mirosław]

Document remove_conflicting_framebuffers() behaviour.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
---
 drivers/video/fbdev/core/fbmem.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c
index 0df148eb4699..2de93b5014e3 100644
--- a/drivers/video/fbdev/core/fbmem.c
+++ b/drivers/video/fbdev/core/fbmem.c
@@ -1775,6 +1775,16 @@ int unlink_framebuffer(struct fb_info *fb_info)
 }
 EXPORT_SYMBOL(unlink_framebuffer);
 
+/**
+ * remove_conflicting_framebuffers - remove firmware-configured framebuffers
+ * @a: memory range, users of which are to be removed
+ * @name: requesting driver name
+ * @primary: also kick vga16fb if present
+ *
+ * This function removes framebuffer devices (initialized by firmware/bootloader)
+ * which use memory range described by @a. If @a is NULL all such devices are
+ * removed.
+ */
 int remove_conflicting_framebuffers(struct apertures_struct *a,
 				    const char *name, bool primary)
 {
-- 
2.18.0

_______________________________________________
Virtualization mailing list
Virtualization@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/virtualization

[PATCH v3 04/13] fbdev: add remove_conflicting_pci_framebuffers()

[Michał Mirosław]

Almost all PCI drivers using remove_conflicting_framebuffers() wrap it
with the same code.

---
v2: add kerneldoc for DRM helper
v3: propagate remove_conflicting_framebuffers() return value
  + move kerneldoc to where function is implemented

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
---
 drivers/video/fbdev/core/fbmem.c | 35 ++++++++++++++++++++++++++++++++
 include/drm/drm_fb_helper.h      | 12 +++++++++++
 include/linux/fb.h               |  2 ++
 3 files changed, 49 insertions(+)

diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c
index 2de93b5014e3..cd96b1c62bbe 100644
--- a/drivers/video/fbdev/core/fbmem.c
+++ b/drivers/video/fbdev/core/fbmem.c
@@ -34,6 +34,7 @@
 #include <linux/fb.h>
 #include <linux/fbcon.h>
 #include <linux/mem_encrypt.h>
+#include <linux/pci.h>
 
 #include <asm/fb.h>
 
@@ -1812,6 +1813,40 @@ int remove_conflicting_framebuffers(struct apertures_struct *a,
 }
 EXPORT_SYMBOL(remove_conflicting_framebuffers);
 
+/**
+ * remove_conflicting_pci_framebuffers - remove firmware-configured framebuffers for PCI devices
+ * @pdev: PCI device
+ * @resource_id: index of PCI BAR configuring framebuffer memory
+ * @name: requesting driver name
+ *
+ * This function removes framebuffer devices (eg. initialized by firmware)
+ * using memory range configured for @pdev's BAR @resource_id.
+ *
+ * The function assumes that PCI device with shadowed ROM drives a primary
+ * display and so kicks out vga16fb.
+ */
+int remove_conflicting_pci_framebuffers(struct pci_dev *pdev, int res_id, const char *name)
+{
+	struct apertures_struct *ap;
+	bool primary = false;
+	int err;
+
+	ap = alloc_apertures(1);
+	if (!ap)
+		return -ENOMEM;
+
+	ap->ranges[0].base = pci_resource_start(pdev, res_id);
+	ap->ranges[0].size = pci_resource_len(pdev, res_id);
+#ifdef CONFIG_X86
+	primary = pdev->resource[PCI_ROM_RESOURCE].flags &
+					IORESOURCE_ROM_SHADOW;
+#endif
+	err = remove_conflicting_framebuffers(ap, name, primary);
+	kfree(ap);
+	return err;
+}
+EXPORT_SYMBOL(remove_conflicting_pci_framebuffers);
+
 /**
  *	register_framebuffer - registers a frame buffer device
  *	@fb_info: frame buffer info structure
diff --git a/include/drm/drm_fb_helper.h b/include/drm/drm_fb_helper.h
index b069433e7fc1..20ea856db900 100644
--- a/include/drm/drm_fb_helper.h
+++ b/include/drm/drm_fb_helper.h
@@ -577,4 +577,16 @@ drm_fb_helper_remove_conflicting_framebuffers(struct apertures_struct *a,
 #endif
 }
 
+static inline int
+drm_fb_helper_remove_conflicting_pci_framebuffers(struct pci_dev *pdev,
+						  int resource_id,
+						  const char *name)
+{
+#if IS_REACHABLE(CONFIG_FB)
+	return remove_conflicting_pci_framebuffers(pdev, resource_id, name);
+#else
+	return 0;
+#endif
+}
+
 #endif
diff --git a/include/linux/fb.h b/include/linux/fb.h
index aa74a228bb92..abeffd55b66a 100644
--- a/include/linux/fb.h
+++ b/include/linux/fb.h
@@ -632,6 +632,8 @@ extern ssize_t fb_sys_write(struct fb_info *info, const char __user *buf,
 extern int register_framebuffer(struct fb_info *fb_info);
 extern int unregister_framebuffer(struct fb_info *fb_info);
 extern int unlink_framebuffer(struct fb_info *fb_info);
+extern int remove_conflicting_pci_framebuffers(struct pci_dev *pdev, int res_id,
+					       const char *name);
 extern int remove_conflicting_framebuffers(struct apertures_struct *a,
 					   const char *name, bool primary);
 extern int fb_prepare_logo(struct fb_info *fb_info, int rotate);
-- 
2.18.0

_______________________________________________
Virtualization mailing list
Virtualization@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/virtualization

[PATCH v3 03/13] fbdev: add kerneldoc do remove_conflicting_framebuffers()

[Michał Mirosław]

Document remove_conflicting_framebuffers() behaviour.

Signed-off-by: Micha? Miros?aw <mirq-linux@rere.qmqm.pl>
---
 drivers/video/fbdev/core/fbmem.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c
index 0df148eb4699..2de93b5014e3 100644
--- a/drivers/video/fbdev/core/fbmem.c
+++ b/drivers/video/fbdev/core/fbmem.c
@@ -1775,6 +1775,16 @@ int unlink_framebuffer(struct fb_info *fb_info)
 }
 EXPORT_SYMBOL(unlink_framebuffer);
 
+/**
+ * remove_conflicting_framebuffers - remove firmware-configured framebuffers
+ * @a: memory range, users of which are to be removed
+ * @name: requesting driver name
+ * @primary: also kick vga16fb if present
+ *
+ * This function removes framebuffer devices (initialized by firmware/bootloader)
+ * which use memory range described by @a. If @a is NULL all such devices are
+ * removed.
+ */
 int remove_conflicting_framebuffers(struct apertures_struct *a,
 				    const char *name, bool primary)
 {
-- 
2.18.0

[PATCH v3 04/13] fbdev: add remove_conflicting_pci_framebuffers()

[Michał Mirosław]

Almost all PCI drivers using remove_conflicting_framebuffers() wrap it
with the same code.

---
v2: add kerneldoc for DRM helper
v3: propagate remove_conflicting_framebuffers() return value
  + move kerneldoc to where function is implemented

Signed-off-by: Micha? Miros?aw <mirq-linux@rere.qmqm.pl>
---
 drivers/video/fbdev/core/fbmem.c | 35 ++++++++++++++++++++++++++++++++
 include/drm/drm_fb_helper.h      | 12 +++++++++++
 include/linux/fb.h               |  2 ++
 3 files changed, 49 insertions(+)

diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c
index 2de93b5014e3..cd96b1c62bbe 100644
--- a/drivers/video/fbdev/core/fbmem.c
+++ b/drivers/video/fbdev/core/fbmem.c
@@ -34,6 +34,7 @@
 #include <linux/fb.h>
 #include <linux/fbcon.h>
 #include <linux/mem_encrypt.h>
+#include <linux/pci.h>
 
 #include <asm/fb.h>
 
@@ -1812,6 +1813,40 @@ int remove_conflicting_framebuffers(struct apertures_struct *a,
 }
 EXPORT_SYMBOL(remove_conflicting_framebuffers);
 
+/**
+ * remove_conflicting_pci_framebuffers - remove firmware-configured framebuffers for PCI devices
+ * @pdev: PCI device
+ * @resource_id: index of PCI BAR configuring framebuffer memory
+ * @name: requesting driver name
+ *
+ * This function removes framebuffer devices (eg. initialized by firmware)
+ * using memory range configured for @pdev's BAR @resource_id.
+ *
+ * The function assumes that PCI device with shadowed ROM drives a primary
+ * display and so kicks out vga16fb.
+ */
+int remove_conflicting_pci_framebuffers(struct pci_dev *pdev, int res_id, const char *name)
+{
+	struct apertures_struct *ap;
+	bool primary = false;
+	int err;
+
+	ap = alloc_apertures(1);
+	if (!ap)
+		return -ENOMEM;
+
+	ap->ranges[0].base = pci_resource_start(pdev, res_id);
+	ap->ranges[0].size = pci_resource_len(pdev, res_id);
+#ifdef CONFIG_X86
+	primary = pdev->resource[PCI_ROM_RESOURCE].flags &
+					IORESOURCE_ROM_SHADOW;
+#endif
+	err = remove_conflicting_framebuffers(ap, name, primary);
+	kfree(ap);
+	return err;
+}
+EXPORT_SYMBOL(remove_conflicting_pci_framebuffers);
+
 /**
  *	register_framebuffer - registers a frame buffer device
  *	@fb_info: frame buffer info structure
diff --git a/include/drm/drm_fb_helper.h b/include/drm/drm_fb_helper.h
index b069433e7fc1..20ea856db900 100644
--- a/include/drm/drm_fb_helper.h
+++ b/include/drm/drm_fb_helper.h
@@ -577,4 +577,16 @@ drm_fb_helper_remove_conflicting_framebuffers(struct apertures_struct *a,
 #endif
 }
 
+static inline int
+drm_fb_helper_remove_conflicting_pci_framebuffers(struct pci_dev *pdev,
+						  int resource_id,
+						  const char *name)
+{
+#if IS_REACHABLE(CONFIG_FB)
+	return remove_conflicting_pci_framebuffers(pdev, resource_id, name);
+#else
+	return 0;
+#endif
+}
+
 #endif
diff --git a/include/linux/fb.h b/include/linux/fb.h
index aa74a228bb92..abeffd55b66a 100644
--- a/include/linux/fb.h
+++ b/include/linux/fb.h
@@ -632,6 +632,8 @@ extern ssize_t fb_sys_write(struct fb_info *info, const char __user *buf,
 extern int register_framebuffer(struct fb_info *fb_info);
 extern int unregister_framebuffer(struct fb_info *fb_info);
 extern int unlink_framebuffer(struct fb_info *fb_info);
+extern int remove_conflicting_pci_framebuffers(struct pci_dev *pdev, int res_id,
+					       const char *name);
 extern int remove_conflicting_framebuffers(struct apertures_struct *a,
 					   const char *name, bool primary);
 extern int fb_prepare_logo(struct fb_info *fb_info, int rotate);
-- 
2.18.0

[PATCH v3 06/13] drm/bochs: use simpler remove_conflicting_pci_framebuffers()

[Michał Mirosław]

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/bochs/bochs_drv.c | 18 +-----------------
 1 file changed, 1 insertion(+), 17 deletions(-)

diff --git a/drivers/gpu/drm/bochs/bochs_drv.c b/drivers/gpu/drm/bochs/bochs_drv.c
index 7b20318483e4..c61b40c72b62 100644
--- a/drivers/gpu/drm/bochs/bochs_drv.c
+++ b/drivers/gpu/drm/bochs/bochs_drv.c
@@ -143,22 +143,6 @@ static const struct dev_pm_ops bochs_pm_ops = {
 /* ---------------------------------------------------------------------- */
 /* pci interface                                                          */
 
-static int bochs_kick_out_firmware_fb(struct pci_dev *pdev)
-{
-	struct apertures_struct *ap;
-
-	ap = alloc_apertures(1);
-	if (!ap)
-		return -ENOMEM;
-
-	ap->ranges[0].base = pci_resource_start(pdev, 0);
-	ap->ranges[0].size = pci_resource_len(pdev, 0);
-	drm_fb_helper_remove_conflicting_framebuffers(ap, "bochsdrmfb", false);
-	kfree(ap);
-
-	return 0;
-}
-
 static int bochs_pci_probe(struct pci_dev *pdev,
 			   const struct pci_device_id *ent)
 {
@@ -171,7 +155,7 @@ static int bochs_pci_probe(struct pci_dev *pdev,
 		return -ENOMEM;
 	}
 
-	ret = bochs_kick_out_firmware_fb(pdev);
+	ret = drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, 0, "bochsdrmfb");
 	if (ret)
 		return ret;
 
-- 
2.18.0

_______________________________________________
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https://lists.linuxfoundation.org/mailman/listinfo/virtualization

[PATCH v3 05/13] drm/amdgpu: use simpler remove_conflicting_pci_framebuffers()

[Michał Mirosław]

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 24 +-----------------------
 1 file changed, 1 insertion(+), 23 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
index 0b19482b36b8..9b6e037719db 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
@@ -560,28 +560,6 @@ MODULE_DEVICE_TABLE(pci, pciidlist);
 
 static struct drm_driver kms_driver;
 
-static int amdgpu_kick_out_firmware_fb(struct pci_dev *pdev)
-{
-	struct apertures_struct *ap;
-	bool primary = false;
-
-	ap = alloc_apertures(1);
-	if (!ap)
-		return -ENOMEM;
-
-	ap->ranges[0].base = pci_resource_start(pdev, 0);
-	ap->ranges[0].size = pci_resource_len(pdev, 0);
-
-#ifdef CONFIG_X86
-	primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
-#endif
-	drm_fb_helper_remove_conflicting_framebuffers(ap, "amdgpudrmfb", primary);
-	kfree(ap);
-
-	return 0;
-}
-
-
 static int amdgpu_pci_probe(struct pci_dev *pdev,
 			    const struct pci_device_id *ent)
 {
@@ -609,7 +587,7 @@ static int amdgpu_pci_probe(struct pci_dev *pdev,
 		return ret;
 
 	/* Get rid of things like offb */
-	ret = amdgpu_kick_out_firmware_fb(pdev);
+	ret = drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, 0, "amdgpudrmfb");
 	if (ret)
 		return ret;
 
-- 
2.18.0


_______________________________________________
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[PATCH v3 06/13] drm/bochs: use simpler remove_conflicting_pci_framebuffers()

[Michał Mirosław]

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/bochs/bochs_drv.c | 18 +-----------------
 1 file changed, 1 insertion(+), 17 deletions(-)

diff --git a/drivers/gpu/drm/bochs/bochs_drv.c b/drivers/gpu/drm/bochs/bochs_drv.c
index 7b20318483e4..c61b40c72b62 100644
--- a/drivers/gpu/drm/bochs/bochs_drv.c
+++ b/drivers/gpu/drm/bochs/bochs_drv.c
@@ -143,22 +143,6 @@ static const struct dev_pm_ops bochs_pm_ops = {
 /* ---------------------------------------------------------------------- */
 /* pci interface                                                          */
 
-static int bochs_kick_out_firmware_fb(struct pci_dev *pdev)
-{
-	struct apertures_struct *ap;
-
-	ap = alloc_apertures(1);
-	if (!ap)
-		return -ENOMEM;
-
-	ap->ranges[0].base = pci_resource_start(pdev, 0);
-	ap->ranges[0].size = pci_resource_len(pdev, 0);
-	drm_fb_helper_remove_conflicting_framebuffers(ap, "bochsdrmfb", false);
-	kfree(ap);
-
-	return 0;
-}
-
 static int bochs_pci_probe(struct pci_dev *pdev,
 			   const struct pci_device_id *ent)
 {
@@ -171,7 +155,7 @@ static int bochs_pci_probe(struct pci_dev *pdev,
 		return -ENOMEM;
 	}
 
-	ret = bochs_kick_out_firmware_fb(pdev);
+	ret = drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, 0, "bochsdrmfb");
 	if (ret)
 		return ret;
 
-- 
2.18.0

[PATCH v3 05/13] drm/amdgpu: use simpler remove_conflicting_pci_framebuffers()

[Michał Mirosław]

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 24 +-----------------------
 1 file changed, 1 insertion(+), 23 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
index 0b19482b36b8..9b6e037719db 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
@@ -560,28 +560,6 @@ MODULE_DEVICE_TABLE(pci, pciidlist);
 
 static struct drm_driver kms_driver;
 
-static int amdgpu_kick_out_firmware_fb(struct pci_dev *pdev)
-{
-	struct apertures_struct *ap;
-	bool primary = false;
-
-	ap = alloc_apertures(1);
-	if (!ap)
-		return -ENOMEM;
-
-	ap->ranges[0].base = pci_resource_start(pdev, 0);
-	ap->ranges[0].size = pci_resource_len(pdev, 0);
-
-#ifdef CONFIG_X86
-	primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
-#endif
-	drm_fb_helper_remove_conflicting_framebuffers(ap, "amdgpudrmfb", primary);
-	kfree(ap);
-
-	return 0;
-}
-
-
 static int amdgpu_pci_probe(struct pci_dev *pdev,
 			    const struct pci_device_id *ent)
 {
@@ -609,7 +587,7 @@ static int amdgpu_pci_probe(struct pci_dev *pdev,
 		return ret;
 
 	/* Get rid of things like offb */
-	ret = amdgpu_kick_out_firmware_fb(pdev);
+	ret = drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, 0, "amdgpudrmfb");
 	if (ret)
 		return ret;
 
-- 
2.18.0

[PATCH v3 05/13] drm/amdgpu: use simpler remove_conflicting_pci_framebuffers()

[Michał Mirosław]

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 24 +-----------------------
 1 file changed, 1 insertion(+), 23 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
index 0b19482b36b8..9b6e037719db 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
@@ -560,28 +560,6 @@ MODULE_DEVICE_TABLE(pci, pciidlist);
 
 static struct drm_driver kms_driver;
 
-static int amdgpu_kick_out_firmware_fb(struct pci_dev *pdev)
-{
-	struct apertures_struct *ap;
-	bool primary = false;
-
-	ap = alloc_apertures(1);
-	if (!ap)
-		return -ENOMEM;
-
-	ap->ranges[0].base = pci_resource_start(pdev, 0);
-	ap->ranges[0].size = pci_resource_len(pdev, 0);
-
-#ifdef CONFIG_X86
-	primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
-#endif
-	drm_fb_helper_remove_conflicting_framebuffers(ap, "amdgpudrmfb", primary);
-	kfree(ap);
-
-	return 0;
-}
-
-
 static int amdgpu_pci_probe(struct pci_dev *pdev,
 			    const struct pci_device_id *ent)
 {
@@ -609,7 +587,7 @@ static int amdgpu_pci_probe(struct pci_dev *pdev,
 		return ret;
 
 	/* Get rid of things like offb */
-	ret = amdgpu_kick_out_firmware_fb(pdev);
+	ret = drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, 0, "amdgpudrmfb");
 	if (ret)
 		return ret;
 
-- 
2.18.0

_______________________________________________
Virtualization mailing list
Virtualization@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/virtualization

[PATCH v3 05/13] drm/amdgpu: use simpler remove_conflicting_pci_framebuffers()

[Michał Mirosław]

Signed-off-by: Micha? Miros?aw <mirq-linux@rere.qmqm.pl>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 24 +-----------------------
 1 file changed, 1 insertion(+), 23 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
index 0b19482b36b8..9b6e037719db 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
@@ -560,28 +560,6 @@ MODULE_DEVICE_TABLE(pci, pciidlist);
 
 static struct drm_driver kms_driver;
 
-static int amdgpu_kick_out_firmware_fb(struct pci_dev *pdev)
-{
-	struct apertures_struct *ap;
-	bool primary = false;
-
-	ap = alloc_apertures(1);
-	if (!ap)
-		return -ENOMEM;
-
-	ap->ranges[0].base = pci_resource_start(pdev, 0);
-	ap->ranges[0].size = pci_resource_len(pdev, 0);
-
-#ifdef CONFIG_X86
-	primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
-#endif
-	drm_fb_helper_remove_conflicting_framebuffers(ap, "amdgpudrmfb", primary);
-	kfree(ap);
-
-	return 0;
-}
-
-
 static int amdgpu_pci_probe(struct pci_dev *pdev,
 			    const struct pci_device_id *ent)
 {
@@ -609,7 +587,7 @@ static int amdgpu_pci_probe(struct pci_dev *pdev,
 		return ret;
 
 	/* Get rid of things like offb */
-	ret = amdgpu_kick_out_firmware_fb(pdev);
+	ret = drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, 0, "amdgpudrmfb");
 	if (ret)
 		return ret;
 
-- 
2.18.0

[PATCH v3 06/13] drm/bochs: use simpler remove_conflicting_pci_framebuffers()

[Michał Mirosław]

Signed-off-by: Micha? Miros?aw <mirq-linux@rere.qmqm.pl>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/bochs/bochs_drv.c | 18 +-----------------
 1 file changed, 1 insertion(+), 17 deletions(-)

diff --git a/drivers/gpu/drm/bochs/bochs_drv.c b/drivers/gpu/drm/bochs/bochs_drv.c
index 7b20318483e4..c61b40c72b62 100644
--- a/drivers/gpu/drm/bochs/bochs_drv.c
+++ b/drivers/gpu/drm/bochs/bochs_drv.c
@@ -143,22 +143,6 @@ static const struct dev_pm_ops bochs_pm_ops = {
 /* ---------------------------------------------------------------------- */
 /* pci interface                                                          */
 
-static int bochs_kick_out_firmware_fb(struct pci_dev *pdev)
-{
-	struct apertures_struct *ap;
-
-	ap = alloc_apertures(1);
-	if (!ap)
-		return -ENOMEM;
-
-	ap->ranges[0].base = pci_resource_start(pdev, 0);
-	ap->ranges[0].size = pci_resource_len(pdev, 0);
-	drm_fb_helper_remove_conflicting_framebuffers(ap, "bochsdrmfb", false);
-	kfree(ap);
-
-	return 0;
-}
-
 static int bochs_pci_probe(struct pci_dev *pdev,
 			   const struct pci_device_id *ent)
 {
@@ -171,7 +155,7 @@ static int bochs_pci_probe(struct pci_dev *pdev,
 		return -ENOMEM;
 	}
 
-	ret = bochs_kick_out_firmware_fb(pdev);
+	ret = drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, 0, "bochsdrmfb");
 	if (ret)
 		return ret;
 
-- 
2.18.0

[PATCH v3 07/13] drm/cirrus: use simpler remove_conflicting_pci_framebuffers()

[Michał Mirosław]

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/cirrus/cirrus_drv.c | 23 +----------------------
 1 file changed, 1 insertion(+), 22 deletions(-)

diff --git a/drivers/gpu/drm/cirrus/cirrus_drv.c b/drivers/gpu/drm/cirrus/cirrus_drv.c
index 69c4e352dd78..85ed8657c862 100644
--- a/drivers/gpu/drm/cirrus/cirrus_drv.c
+++ b/drivers/gpu/drm/cirrus/cirrus_drv.c
@@ -42,33 +42,12 @@ static const struct pci_device_id pciidlist[] = {
 };
 
 
-static int cirrus_kick_out_firmware_fb(struct pci_dev *pdev)
-{
-	struct apertures_struct *ap;
-	bool primary = false;
-
-	ap = alloc_apertures(1);
-	if (!ap)
-		return -ENOMEM;
-
-	ap->ranges[0].base = pci_resource_start(pdev, 0);
-	ap->ranges[0].size = pci_resource_len(pdev, 0);
-
-#ifdef CONFIG_X86
-	primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
-#endif
-	drm_fb_helper_remove_conflicting_framebuffers(ap, "cirrusdrmfb", primary);
-	kfree(ap);
-
-	return 0;
-}
-
 static int cirrus_pci_probe(struct pci_dev *pdev,
 			    const struct pci_device_id *ent)
 {
 	int ret;
 
-	ret = cirrus_kick_out_firmware_fb(pdev);
+	ret = drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, 0, "cirrusdrmfb");
 	if (ret)
 		return ret;
 
-- 
2.18.0

_______________________________________________
Virtualization mailing list
Virtualization@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/virtualization

[PATCH v3 07/13] drm/cirrus: use simpler remove_conflicting_pci_framebuffers()

[Michał Mirosław]

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/cirrus/cirrus_drv.c | 23 +----------------------
 1 file changed, 1 insertion(+), 22 deletions(-)

diff --git a/drivers/gpu/drm/cirrus/cirrus_drv.c b/drivers/gpu/drm/cirrus/cirrus_drv.c
index 69c4e352dd78..85ed8657c862 100644
--- a/drivers/gpu/drm/cirrus/cirrus_drv.c
+++ b/drivers/gpu/drm/cirrus/cirrus_drv.c
@@ -42,33 +42,12 @@ static const struct pci_device_id pciidlist[] = {
 };
 
 
-static int cirrus_kick_out_firmware_fb(struct pci_dev *pdev)
-{
-	struct apertures_struct *ap;
-	bool primary = false;
-
-	ap = alloc_apertures(1);
-	if (!ap)
-		return -ENOMEM;
-
-	ap->ranges[0].base = pci_resource_start(pdev, 0);
-	ap->ranges[0].size = pci_resource_len(pdev, 0);
-
-#ifdef CONFIG_X86
-	primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
-#endif
-	drm_fb_helper_remove_conflicting_framebuffers(ap, "cirrusdrmfb", primary);
-	kfree(ap);
-
-	return 0;
-}
-
 static int cirrus_pci_probe(struct pci_dev *pdev,
 			    const struct pci_device_id *ent)
 {
 	int ret;
 
-	ret = cirrus_kick_out_firmware_fb(pdev);
+	ret = drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, 0, "cirrusdrmfb");
 	if (ret)
 		return ret;
 
-- 
2.18.0

[PATCH v3 07/13] drm/cirrus: use simpler remove_conflicting_pci_framebuffers()

[Michał Mirosław]

Signed-off-by: Micha? Miros?aw <mirq-linux@rere.qmqm.pl>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/cirrus/cirrus_drv.c | 23 +----------------------
 1 file changed, 1 insertion(+), 22 deletions(-)

diff --git a/drivers/gpu/drm/cirrus/cirrus_drv.c b/drivers/gpu/drm/cirrus/cirrus_drv.c
index 69c4e352dd78..85ed8657c862 100644
--- a/drivers/gpu/drm/cirrus/cirrus_drv.c
+++ b/drivers/gpu/drm/cirrus/cirrus_drv.c
@@ -42,33 +42,12 @@ static const struct pci_device_id pciidlist[] = {
 };
 
 
-static int cirrus_kick_out_firmware_fb(struct pci_dev *pdev)
-{
-	struct apertures_struct *ap;
-	bool primary = false;
-
-	ap = alloc_apertures(1);
-	if (!ap)
-		return -ENOMEM;
-
-	ap->ranges[0].base = pci_resource_start(pdev, 0);
-	ap->ranges[0].size = pci_resource_len(pdev, 0);
-
-#ifdef CONFIG_X86
-	primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
-#endif
-	drm_fb_helper_remove_conflicting_framebuffers(ap, "cirrusdrmfb", primary);
-	kfree(ap);
-
-	return 0;
-}
-
 static int cirrus_pci_probe(struct pci_dev *pdev,
 			    const struct pci_device_id *ent)
 {
 	int ret;
 
-	ret = cirrus_kick_out_firmware_fb(pdev);
+	ret = drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, 0, "cirrusdrmfb");
 	if (ret)
 		return ret;
 
-- 
2.18.0

[PATCH v3 09/13] drm/radeon: use simpler remove_conflicting_pci_framebuffers()

[Michał Mirosław]

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/radeon/radeon_drv.c | 23 +----------------------
 1 file changed, 1 insertion(+), 22 deletions(-)

diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c
index b28288a781ef..36c98a0ec991 100644
--- a/drivers/gpu/drm/radeon/radeon_drv.c
+++ b/drivers/gpu/drm/radeon/radeon_drv.c
@@ -311,27 +311,6 @@ static struct drm_driver kms_driver;
 
 bool radeon_device_is_virtual(void);
 
-static int radeon_kick_out_firmware_fb(struct pci_dev *pdev)
-{
-	struct apertures_struct *ap;
-	bool primary = false;
-
-	ap = alloc_apertures(1);
-	if (!ap)
-		return -ENOMEM;
-
-	ap->ranges[0].base = pci_resource_start(pdev, 0);
-	ap->ranges[0].size = pci_resource_len(pdev, 0);
-
-#ifdef CONFIG_X86
-	primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
-#endif
-	drm_fb_helper_remove_conflicting_framebuffers(ap, "radeondrmfb", primary);
-	kfree(ap);
-
-	return 0;
-}
-
 static int radeon_pci_probe(struct pci_dev *pdev,
 			    const struct pci_device_id *ent)
 {
@@ -341,7 +320,7 @@ static int radeon_pci_probe(struct pci_dev *pdev,
 		return -EPROBE_DEFER;
 
 	/* Get rid of things like offb */
-	ret = radeon_kick_out_firmware_fb(pdev);
+	ret = drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, 0, "radeondrmfb");
 	if (ret)
 		return ret;
 
-- 
2.18.0


_______________________________________________
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linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

[PATCH v3 08/13] drm/mgag200: use simpler remove_conflicting_pci_framebuffers()

[Michał Mirosław]

Remove duplicated call, while at it.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/mgag200/mgag200_drv.c  | 21 +--------------------
 drivers/gpu/drm/mgag200/mgag200_main.c |  9 ---------
 2 files changed, 1 insertion(+), 29 deletions(-)

diff --git a/drivers/gpu/drm/mgag200/mgag200_drv.c b/drivers/gpu/drm/mgag200/mgag200_drv.c
index 74cdde2ee474..ac6af4bd9df6 100644
--- a/drivers/gpu/drm/mgag200/mgag200_drv.c
+++ b/drivers/gpu/drm/mgag200/mgag200_drv.c
@@ -42,29 +42,10 @@ static const struct pci_device_id pciidlist[] = {
 
 MODULE_DEVICE_TABLE(pci, pciidlist);
 
-static void mgag200_kick_out_firmware_fb(struct pci_dev *pdev)
-{
-	struct apertures_struct *ap;
-	bool primary = false;
-
-	ap = alloc_apertures(1);
-	if (!ap)
-		return;
-
-	ap->ranges[0].base = pci_resource_start(pdev, 0);
-	ap->ranges[0].size = pci_resource_len(pdev, 0);
-
-#ifdef CONFIG_X86
-	primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
-#endif
-	drm_fb_helper_remove_conflicting_framebuffers(ap, "mgag200drmfb", primary);
-	kfree(ap);
-}
-
 
 static int mga_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 {
-	mgag200_kick_out_firmware_fb(pdev);
+	drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, 0, "mgag200drmfb");
 
 	return drm_get_pci_dev(pdev, ent, &driver);
 }
diff --git a/drivers/gpu/drm/mgag200/mgag200_main.c b/drivers/gpu/drm/mgag200/mgag200_main.c
index 780f983b0294..79d54103d470 100644
--- a/drivers/gpu/drm/mgag200/mgag200_main.c
+++ b/drivers/gpu/drm/mgag200/mgag200_main.c
@@ -124,20 +124,11 @@ static int mga_probe_vram(struct mga_device *mdev, void __iomem *mem)
 static int mga_vram_init(struct mga_device *mdev)
 {
 	void __iomem *mem;
-	struct apertures_struct *aper = alloc_apertures(1);
-	if (!aper)
-		return -ENOMEM;
 
 	/* BAR 0 is VRAM */
 	mdev->mc.vram_base = pci_resource_start(mdev->dev->pdev, 0);
 	mdev->mc.vram_window = pci_resource_len(mdev->dev->pdev, 0);
 
-	aper->ranges[0].base = mdev->mc.vram_base;
-	aper->ranges[0].size = mdev->mc.vram_window;
-
-	drm_fb_helper_remove_conflicting_framebuffers(aper, "mgafb", true);
-	kfree(aper);
-
 	if (!devm_request_mem_region(mdev->dev->dev, mdev->mc.vram_base, mdev->mc.vram_window,
 				"mgadrmfb_vram")) {
 		DRM_ERROR("can't reserve VRAM\n");
-- 
2.18.0


_______________________________________________
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linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

[PATCH v3 09/13] drm/radeon: use simpler remove_conflicting_pci_framebuffers()

[Michał Mirosław]

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/radeon/radeon_drv.c | 23 +----------------------
 1 file changed, 1 insertion(+), 22 deletions(-)

diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c
index b28288a781ef..36c98a0ec991 100644
--- a/drivers/gpu/drm/radeon/radeon_drv.c
+++ b/drivers/gpu/drm/radeon/radeon_drv.c
@@ -311,27 +311,6 @@ static struct drm_driver kms_driver;
 
 bool radeon_device_is_virtual(void);
 
-static int radeon_kick_out_firmware_fb(struct pci_dev *pdev)
-{
-	struct apertures_struct *ap;
-	bool primary = false;
-
-	ap = alloc_apertures(1);
-	if (!ap)
-		return -ENOMEM;
-
-	ap->ranges[0].base = pci_resource_start(pdev, 0);
-	ap->ranges[0].size = pci_resource_len(pdev, 0);
-
-#ifdef CONFIG_X86
-	primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
-#endif
-	drm_fb_helper_remove_conflicting_framebuffers(ap, "radeondrmfb", primary);
-	kfree(ap);
-
-	return 0;
-}
-
 static int radeon_pci_probe(struct pci_dev *pdev,
 			    const struct pci_device_id *ent)
 {
@@ -341,7 +320,7 @@ static int radeon_pci_probe(struct pci_dev *pdev,
 		return -EPROBE_DEFER;
 
 	/* Get rid of things like offb */
-	ret = radeon_kick_out_firmware_fb(pdev);
+	ret = drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, 0, "radeondrmfb");
 	if (ret)
 		return ret;
 
-- 
2.18.0

[PATCH v3 08/13] drm/mgag200: use simpler remove_conflicting_pci_framebuffers()

[Michał Mirosław]

Remove duplicated call, while at it.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/mgag200/mgag200_drv.c  | 21 +--------------------
 drivers/gpu/drm/mgag200/mgag200_main.c |  9 ---------
 2 files changed, 1 insertion(+), 29 deletions(-)

diff --git a/drivers/gpu/drm/mgag200/mgag200_drv.c b/drivers/gpu/drm/mgag200/mgag200_drv.c
index 74cdde2ee474..ac6af4bd9df6 100644
--- a/drivers/gpu/drm/mgag200/mgag200_drv.c
+++ b/drivers/gpu/drm/mgag200/mgag200_drv.c
@@ -42,29 +42,10 @@ static const struct pci_device_id pciidlist[] = {
 
 MODULE_DEVICE_TABLE(pci, pciidlist);
 
-static void mgag200_kick_out_firmware_fb(struct pci_dev *pdev)
-{
-	struct apertures_struct *ap;
-	bool primary = false;
-
-	ap = alloc_apertures(1);
-	if (!ap)
-		return;
-
-	ap->ranges[0].base = pci_resource_start(pdev, 0);
-	ap->ranges[0].size = pci_resource_len(pdev, 0);
-
-#ifdef CONFIG_X86
-	primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
-#endif
-	drm_fb_helper_remove_conflicting_framebuffers(ap, "mgag200drmfb", primary);
-	kfree(ap);
-}
-
 
 static int mga_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 {
-	mgag200_kick_out_firmware_fb(pdev);
+	drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, 0, "mgag200drmfb");
 
 	return drm_get_pci_dev(pdev, ent, &driver);
 }
diff --git a/drivers/gpu/drm/mgag200/mgag200_main.c b/drivers/gpu/drm/mgag200/mgag200_main.c
index 780f983b0294..79d54103d470 100644
--- a/drivers/gpu/drm/mgag200/mgag200_main.c
+++ b/drivers/gpu/drm/mgag200/mgag200_main.c
@@ -124,20 +124,11 @@ static int mga_probe_vram(struct mga_device *mdev, void __iomem *mem)
 static int mga_vram_init(struct mga_device *mdev)
 {
 	void __iomem *mem;
-	struct apertures_struct *aper = alloc_apertures(1);
-	if (!aper)
-		return -ENOMEM;
 
 	/* BAR 0 is VRAM */
 	mdev->mc.vram_base = pci_resource_start(mdev->dev->pdev, 0);
 	mdev->mc.vram_window = pci_resource_len(mdev->dev->pdev, 0);
 
-	aper->ranges[0].base = mdev->mc.vram_base;
-	aper->ranges[0].size = mdev->mc.vram_window;
-
-	drm_fb_helper_remove_conflicting_framebuffers(aper, "mgafb", true);
-	kfree(aper);
-
 	if (!devm_request_mem_region(mdev->dev->dev, mdev->mc.vram_base, mdev->mc.vram_window,
 				"mgadrmfb_vram")) {
 		DRM_ERROR("can't reserve VRAM\n");
-- 
2.18.0

[PATCH v3 09/13] drm/radeon: use simpler remove_conflicting_pci_framebuffers()

[Michał Mirosław]

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/radeon/radeon_drv.c | 23 +----------------------
 1 file changed, 1 insertion(+), 22 deletions(-)

diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c
index b28288a781ef..36c98a0ec991 100644
--- a/drivers/gpu/drm/radeon/radeon_drv.c
+++ b/drivers/gpu/drm/radeon/radeon_drv.c
@@ -311,27 +311,6 @@ static struct drm_driver kms_driver;
 
 bool radeon_device_is_virtual(void);
 
-static int radeon_kick_out_firmware_fb(struct pci_dev *pdev)
-{
-	struct apertures_struct *ap;
-	bool primary = false;
-
-	ap = alloc_apertures(1);
-	if (!ap)
-		return -ENOMEM;
-
-	ap->ranges[0].base = pci_resource_start(pdev, 0);
-	ap->ranges[0].size = pci_resource_len(pdev, 0);
-
-#ifdef CONFIG_X86
-	primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
-#endif
-	drm_fb_helper_remove_conflicting_framebuffers(ap, "radeondrmfb", primary);
-	kfree(ap);
-
-	return 0;
-}
-
 static int radeon_pci_probe(struct pci_dev *pdev,
 			    const struct pci_device_id *ent)
 {
@@ -341,7 +320,7 @@ static int radeon_pci_probe(struct pci_dev *pdev,
 		return -EPROBE_DEFER;
 
 	/* Get rid of things like offb */
-	ret = radeon_kick_out_firmware_fb(pdev);
+	ret = drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, 0, "radeondrmfb");
 	if (ret)
 		return ret;
 
-- 
2.18.0

_______________________________________________
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https://lists.linuxfoundation.org/mailman/listinfo/virtualization

[PATCH v3 08/13] drm/mgag200: use simpler remove_conflicting_pci_framebuffers()

[Michał Mirosław]

Remove duplicated call, while at it.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/mgag200/mgag200_drv.c  | 21 +--------------------
 drivers/gpu/drm/mgag200/mgag200_main.c |  9 ---------
 2 files changed, 1 insertion(+), 29 deletions(-)

diff --git a/drivers/gpu/drm/mgag200/mgag200_drv.c b/drivers/gpu/drm/mgag200/mgag200_drv.c
index 74cdde2ee474..ac6af4bd9df6 100644
--- a/drivers/gpu/drm/mgag200/mgag200_drv.c
+++ b/drivers/gpu/drm/mgag200/mgag200_drv.c
@@ -42,29 +42,10 @@ static const struct pci_device_id pciidlist[] = {
 
 MODULE_DEVICE_TABLE(pci, pciidlist);
 
-static void mgag200_kick_out_firmware_fb(struct pci_dev *pdev)
-{
-	struct apertures_struct *ap;
-	bool primary = false;
-
-	ap = alloc_apertures(1);
-	if (!ap)
-		return;
-
-	ap->ranges[0].base = pci_resource_start(pdev, 0);
-	ap->ranges[0].size = pci_resource_len(pdev, 0);
-
-#ifdef CONFIG_X86
-	primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
-#endif
-	drm_fb_helper_remove_conflicting_framebuffers(ap, "mgag200drmfb", primary);
-	kfree(ap);
-}
-
 
 static int mga_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 {
-	mgag200_kick_out_firmware_fb(pdev);
+	drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, 0, "mgag200drmfb");
 
 	return drm_get_pci_dev(pdev, ent, &driver);
 }
diff --git a/drivers/gpu/drm/mgag200/mgag200_main.c b/drivers/gpu/drm/mgag200/mgag200_main.c
index 780f983b0294..79d54103d470 100644
--- a/drivers/gpu/drm/mgag200/mgag200_main.c
+++ b/drivers/gpu/drm/mgag200/mgag200_main.c
@@ -124,20 +124,11 @@ static int mga_probe_vram(struct mga_device *mdev, void __iomem *mem)
 static int mga_vram_init(struct mga_device *mdev)
 {
 	void __iomem *mem;
-	struct apertures_struct *aper = alloc_apertures(1);
-	if (!aper)
-		return -ENOMEM;
 
 	/* BAR 0 is VRAM */
 	mdev->mc.vram_base = pci_resource_start(mdev->dev->pdev, 0);
 	mdev->mc.vram_window = pci_resource_len(mdev->dev->pdev, 0);
 
-	aper->ranges[0].base = mdev->mc.vram_base;
-	aper->ranges[0].size = mdev->mc.vram_window;
-
-	drm_fb_helper_remove_conflicting_framebuffers(aper, "mgafb", true);
-	kfree(aper);
-
 	if (!devm_request_mem_region(mdev->dev->dev, mdev->mc.vram_base, mdev->mc.vram_window,
 				"mgadrmfb_vram")) {
 		DRM_ERROR("can't reserve VRAM\n");
-- 
2.18.0

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[PATCH v3 09/13] drm/radeon: use simpler remove_conflicting_pci_framebuffers()

[Michał Mirosław]

Signed-off-by: Micha? Miros?aw <mirq-linux@rere.qmqm.pl>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/radeon/radeon_drv.c | 23 +----------------------
 1 file changed, 1 insertion(+), 22 deletions(-)

diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c
index b28288a781ef..36c98a0ec991 100644
--- a/drivers/gpu/drm/radeon/radeon_drv.c
+++ b/drivers/gpu/drm/radeon/radeon_drv.c
@@ -311,27 +311,6 @@ static struct drm_driver kms_driver;
 
 bool radeon_device_is_virtual(void);
 
-static int radeon_kick_out_firmware_fb(struct pci_dev *pdev)
-{
-	struct apertures_struct *ap;
-	bool primary = false;
-
-	ap = alloc_apertures(1);
-	if (!ap)
-		return -ENOMEM;
-
-	ap->ranges[0].base = pci_resource_start(pdev, 0);
-	ap->ranges[0].size = pci_resource_len(pdev, 0);
-
-#ifdef CONFIG_X86
-	primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
-#endif
-	drm_fb_helper_remove_conflicting_framebuffers(ap, "radeondrmfb", primary);
-	kfree(ap);
-
-	return 0;
-}
-
 static int radeon_pci_probe(struct pci_dev *pdev,
 			    const struct pci_device_id *ent)
 {
@@ -341,7 +320,7 @@ static int radeon_pci_probe(struct pci_dev *pdev,
 		return -EPROBE_DEFER;
 
 	/* Get rid of things like offb */
-	ret = radeon_kick_out_firmware_fb(pdev);
+	ret = drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, 0, "radeondrmfb");
 	if (ret)
 		return ret;
 
-- 
2.18.0

[PATCH v3 08/13] drm/mgag200: use simpler remove_conflicting_pci_framebuffers()

[Michał Mirosław]

Remove duplicated call, while at it.

Signed-off-by: Micha? Miros?aw <mirq-linux@rere.qmqm.pl>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/mgag200/mgag200_drv.c  | 21 +--------------------
 drivers/gpu/drm/mgag200/mgag200_main.c |  9 ---------
 2 files changed, 1 insertion(+), 29 deletions(-)

diff --git a/drivers/gpu/drm/mgag200/mgag200_drv.c b/drivers/gpu/drm/mgag200/mgag200_drv.c
index 74cdde2ee474..ac6af4bd9df6 100644
--- a/drivers/gpu/drm/mgag200/mgag200_drv.c
+++ b/drivers/gpu/drm/mgag200/mgag200_drv.c
@@ -42,29 +42,10 @@ static const struct pci_device_id pciidlist[] = {
 
 MODULE_DEVICE_TABLE(pci, pciidlist);
 
-static void mgag200_kick_out_firmware_fb(struct pci_dev *pdev)
-{
-	struct apertures_struct *ap;
-	bool primary = false;
-
-	ap = alloc_apertures(1);
-	if (!ap)
-		return;
-
-	ap->ranges[0].base = pci_resource_start(pdev, 0);
-	ap->ranges[0].size = pci_resource_len(pdev, 0);
-
-#ifdef CONFIG_X86
-	primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
-#endif
-	drm_fb_helper_remove_conflicting_framebuffers(ap, "mgag200drmfb", primary);
-	kfree(ap);
-}
-
 
 static int mga_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 {
-	mgag200_kick_out_firmware_fb(pdev);
+	drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, 0, "mgag200drmfb");
 
 	return drm_get_pci_dev(pdev, ent, &driver);
 }
diff --git a/drivers/gpu/drm/mgag200/mgag200_main.c b/drivers/gpu/drm/mgag200/mgag200_main.c
index 780f983b0294..79d54103d470 100644
--- a/drivers/gpu/drm/mgag200/mgag200_main.c
+++ b/drivers/gpu/drm/mgag200/mgag200_main.c
@@ -124,20 +124,11 @@ static int mga_probe_vram(struct mga_device *mdev, void __iomem *mem)
 static int mga_vram_init(struct mga_device *mdev)
 {
 	void __iomem *mem;
-	struct apertures_struct *aper = alloc_apertures(1);
-	if (!aper)
-		return -ENOMEM;
 
 	/* BAR 0 is VRAM */
 	mdev->mc.vram_base = pci_resource_start(mdev->dev->pdev, 0);
 	mdev->mc.vram_window = pci_resource_len(mdev->dev->pdev, 0);
 
-	aper->ranges[0].base = mdev->mc.vram_base;
-	aper->ranges[0].size = mdev->mc.vram_window;
-
-	drm_fb_helper_remove_conflicting_framebuffers(aper, "mgafb", true);
-	kfree(aper);
-
 	if (!devm_request_mem_region(mdev->dev->dev, mdev->mc.vram_base, mdev->mc.vram_window,
 				"mgadrmfb_vram")) {
 		DRM_ERROR("can't reserve VRAM\n");
-- 
2.18.0

[PATCH v3 10/13] drm/virtio: use simpler remove_conflicting_pci_framebuffers()

[Michał Mirosław]

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/virtio/virtgpu_drm_bus.c | 24 +++---------------------
 1 file changed, 3 insertions(+), 21 deletions(-)

diff --git a/drivers/gpu/drm/virtio/virtgpu_drm_bus.c b/drivers/gpu/drm/virtio/virtgpu_drm_bus.c
index 7df8d0c9026a..115ed546ca4e 100644
--- a/drivers/gpu/drm/virtio/virtgpu_drm_bus.c
+++ b/drivers/gpu/drm/virtio/virtgpu_drm_bus.c
@@ -28,26 +28,6 @@
 
 #include "virtgpu_drv.h"
 
-static void virtio_pci_kick_out_firmware_fb(struct pci_dev *pci_dev)
-{
-	struct apertures_struct *ap;
-	bool primary;
-
-	ap = alloc_apertures(1);
-	if (!ap)
-		return;
-
-	ap->ranges[0].base = pci_resource_start(pci_dev, 0);
-	ap->ranges[0].size = pci_resource_len(pci_dev, 0);
-
-	primary = pci_dev->resource[PCI_ROM_RESOURCE].flags
-		& IORESOURCE_ROM_SHADOW;
-
-	drm_fb_helper_remove_conflicting_framebuffers(ap, "virtiodrmfb", primary);
-
-	kfree(ap);
-}
-
 int drm_virtio_init(struct drm_driver *driver, struct virtio_device *vdev)
 {
 	struct drm_device *dev;
@@ -69,7 +49,9 @@ int drm_virtio_init(struct drm_driver *driver, struct virtio_device *vdev)
 			 pname);
 		dev->pdev = pdev;
 		if (vga)
-			virtio_pci_kick_out_firmware_fb(pdev);
+			drm_fb_helper_remove_conflicting_pci_framebuffers(pdev,
+									  0,
+									  "virtiodrmfb");
 
 		snprintf(unique, sizeof(unique), "pci:%s", pname);
 		ret = drm_dev_set_unique(dev, unique);
-- 
2.18.0


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[PATCH v3 10/13] drm/virtio: use simpler remove_conflicting_pci_framebuffers()

[Michał Mirosław]

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/virtio/virtgpu_drm_bus.c | 24 +++---------------------
 1 file changed, 3 insertions(+), 21 deletions(-)

diff --git a/drivers/gpu/drm/virtio/virtgpu_drm_bus.c b/drivers/gpu/drm/virtio/virtgpu_drm_bus.c
index 7df8d0c9026a..115ed546ca4e 100644
--- a/drivers/gpu/drm/virtio/virtgpu_drm_bus.c
+++ b/drivers/gpu/drm/virtio/virtgpu_drm_bus.c
@@ -28,26 +28,6 @@
 
 #include "virtgpu_drv.h"
 
-static void virtio_pci_kick_out_firmware_fb(struct pci_dev *pci_dev)
-{
-	struct apertures_struct *ap;
-	bool primary;
-
-	ap = alloc_apertures(1);
-	if (!ap)
-		return;
-
-	ap->ranges[0].base = pci_resource_start(pci_dev, 0);
-	ap->ranges[0].size = pci_resource_len(pci_dev, 0);
-
-	primary = pci_dev->resource[PCI_ROM_RESOURCE].flags
-		& IORESOURCE_ROM_SHADOW;
-
-	drm_fb_helper_remove_conflicting_framebuffers(ap, "virtiodrmfb", primary);
-
-	kfree(ap);
-}
-
 int drm_virtio_init(struct drm_driver *driver, struct virtio_device *vdev)
 {
 	struct drm_device *dev;
@@ -69,7 +49,9 @@ int drm_virtio_init(struct drm_driver *driver, struct virtio_device *vdev)
 			 pname);
 		dev->pdev = pdev;
 		if (vga)
-			virtio_pci_kick_out_firmware_fb(pdev);
+			drm_fb_helper_remove_conflicting_pci_framebuffers(pdev,
+									  0,
+									  "virtiodrmfb");
 
 		snprintf(unique, sizeof(unique), "pci:%s", pname);
 		ret = drm_dev_set_unique(dev, unique);
-- 
2.18.0

[PATCH v3 10/13] drm/virtio: use simpler remove_conflicting_pci_framebuffers()

[Michał Mirosław]

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/virtio/virtgpu_drm_bus.c | 24 +++---------------------
 1 file changed, 3 insertions(+), 21 deletions(-)

diff --git a/drivers/gpu/drm/virtio/virtgpu_drm_bus.c b/drivers/gpu/drm/virtio/virtgpu_drm_bus.c
index 7df8d0c9026a..115ed546ca4e 100644
--- a/drivers/gpu/drm/virtio/virtgpu_drm_bus.c
+++ b/drivers/gpu/drm/virtio/virtgpu_drm_bus.c
@@ -28,26 +28,6 @@
 
 #include "virtgpu_drv.h"
 
-static void virtio_pci_kick_out_firmware_fb(struct pci_dev *pci_dev)
-{
-	struct apertures_struct *ap;
-	bool primary;
-
-	ap = alloc_apertures(1);
-	if (!ap)
-		return;
-
-	ap->ranges[0].base = pci_resource_start(pci_dev, 0);
-	ap->ranges[0].size = pci_resource_len(pci_dev, 0);
-
-	primary = pci_dev->resource[PCI_ROM_RESOURCE].flags
-		& IORESOURCE_ROM_SHADOW;
-
-	drm_fb_helper_remove_conflicting_framebuffers(ap, "virtiodrmfb", primary);
-
-	kfree(ap);
-}
-
 int drm_virtio_init(struct drm_driver *driver, struct virtio_device *vdev)
 {
 	struct drm_device *dev;
@@ -69,7 +49,9 @@ int drm_virtio_init(struct drm_driver *driver, struct virtio_device *vdev)
 			 pname);
 		dev->pdev = pdev;
 		if (vga)
-			virtio_pci_kick_out_firmware_fb(pdev);
+			drm_fb_helper_remove_conflicting_pci_framebuffers(pdev,
+									  0,
+									  "virtiodrmfb");
 
 		snprintf(unique, sizeof(unique), "pci:%s", pname);
 		ret = drm_dev_set_unique(dev, unique);
-- 
2.18.0

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[PATCH v3 10/13] drm/virtio: use simpler remove_conflicting_pci_framebuffers()

[Michał Mirosław]

Signed-off-by: Micha? Miros?aw <mirq-linux@rere.qmqm.pl>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/virtio/virtgpu_drm_bus.c | 24 +++---------------------
 1 file changed, 3 insertions(+), 21 deletions(-)

diff --git a/drivers/gpu/drm/virtio/virtgpu_drm_bus.c b/drivers/gpu/drm/virtio/virtgpu_drm_bus.c
index 7df8d0c9026a..115ed546ca4e 100644
--- a/drivers/gpu/drm/virtio/virtgpu_drm_bus.c
+++ b/drivers/gpu/drm/virtio/virtgpu_drm_bus.c
@@ -28,26 +28,6 @@
 
 #include "virtgpu_drv.h"
 
-static void virtio_pci_kick_out_firmware_fb(struct pci_dev *pci_dev)
-{
-	struct apertures_struct *ap;
-	bool primary;
-
-	ap = alloc_apertures(1);
-	if (!ap)
-		return;
-
-	ap->ranges[0].base = pci_resource_start(pci_dev, 0);
-	ap->ranges[0].size = pci_resource_len(pci_dev, 0);
-
-	primary = pci_dev->resource[PCI_ROM_RESOURCE].flags
-		& IORESOURCE_ROM_SHADOW;
-
-	drm_fb_helper_remove_conflicting_framebuffers(ap, "virtiodrmfb", primary);
-
-	kfree(ap);
-}
-
 int drm_virtio_init(struct drm_driver *driver, struct virtio_device *vdev)
 {
 	struct drm_device *dev;
@@ -69,7 +49,9 @@ int drm_virtio_init(struct drm_driver *driver, struct virtio_device *vdev)
 			 pname);
 		dev->pdev = pdev;
 		if (vga)
-			virtio_pci_kick_out_firmware_fb(pdev);
+			drm_fb_helper_remove_conflicting_pci_framebuffers(pdev,
+									  0,
+									  "virtiodrmfb");
 
 		snprintf(unique, sizeof(unique), "pci:%s", pname);
 		ret = drm_dev_set_unique(dev, unique);
-- 
2.18.0

[PATCH v3 11/13] drm/vc4: use simpler remove_conflicting_framebuffers(NULL)

[Michał Mirosław]

Use remove_conflicting_framebuffers(NULL) instead of open-coding it.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Acked-by: Eric Anholt <eric@anholt.net>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/vc4/vc4_drv.c | 20 +-------------------
 1 file changed, 1 insertion(+), 19 deletions(-)

diff --git a/drivers/gpu/drm/vc4/vc4_drv.c b/drivers/gpu/drm/vc4/vc4_drv.c
index 94b99c90425a..96bb90325995 100644
--- a/drivers/gpu/drm/vc4/vc4_drv.c
+++ b/drivers/gpu/drm/vc4/vc4_drv.c
@@ -246,24 +246,6 @@ static void vc4_match_add_drivers(struct device *dev,
 	}
 }
 
-static void vc4_kick_out_firmware_fb(void)
-{
-	struct apertures_struct *ap;
-
-	ap = alloc_apertures(1);
-	if (!ap)
-		return;
-
-	/* Since VC4 is a UMA device, the simplefb node may have been
-	 * located anywhere in memory.
-	 */
-	ap->ranges[0].base = 0;
-	ap->ranges[0].size = ~0;
-
-	drm_fb_helper_remove_conflicting_framebuffers(ap, "vc4drmfb", false);
-	kfree(ap);
-}
-
 static int vc4_drm_bind(struct device *dev)
 {
 	struct platform_device *pdev = to_platform_device(dev);
@@ -296,7 +278,7 @@ static int vc4_drm_bind(struct device *dev)
 	if (ret)
 		goto gem_destroy;
 
-	vc4_kick_out_firmware_fb();
+	drm_fb_helper_remove_conflicting_framebuffers(NULL, "vc4drmfb", false);
 
 	ret = drm_dev_register(drm, 0);
 	if (ret < 0)
-- 
2.18.0


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[PATCH v3 11/13] drm/vc4: use simpler remove_conflicting_framebuffers(NULL)

[Michał Mirosław]

Use remove_conflicting_framebuffers(NULL) instead of open-coding it.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Acked-by: Eric Anholt <eric@anholt.net>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/vc4/vc4_drv.c | 20 +-------------------
 1 file changed, 1 insertion(+), 19 deletions(-)

diff --git a/drivers/gpu/drm/vc4/vc4_drv.c b/drivers/gpu/drm/vc4/vc4_drv.c
index 94b99c90425a..96bb90325995 100644
--- a/drivers/gpu/drm/vc4/vc4_drv.c
+++ b/drivers/gpu/drm/vc4/vc4_drv.c
@@ -246,24 +246,6 @@ static void vc4_match_add_drivers(struct device *dev,
 	}
 }
 
-static void vc4_kick_out_firmware_fb(void)
-{
-	struct apertures_struct *ap;
-
-	ap = alloc_apertures(1);
-	if (!ap)
-		return;
-
-	/* Since VC4 is a UMA device, the simplefb node may have been
-	 * located anywhere in memory.
-	 */
-	ap->ranges[0].base = 0;
-	ap->ranges[0].size = ~0;
-
-	drm_fb_helper_remove_conflicting_framebuffers(ap, "vc4drmfb", false);
-	kfree(ap);
-}
-
 static int vc4_drm_bind(struct device *dev)
 {
 	struct platform_device *pdev = to_platform_device(dev);
@@ -296,7 +278,7 @@ static int vc4_drm_bind(struct device *dev)
 	if (ret)
 		goto gem_destroy;
 
-	vc4_kick_out_firmware_fb();
+	drm_fb_helper_remove_conflicting_framebuffers(NULL, "vc4drmfb", false);
 
 	ret = drm_dev_register(drm, 0);
 	if (ret < 0)
-- 
2.18.0

[PATCH v3 11/13] drm/vc4: use simpler remove_conflicting_framebuffers(NULL)

[Michał Mirosław]

Use remove_conflicting_framebuffers(NULL) instead of open-coding it.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Acked-by: Eric Anholt <eric@anholt.net>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/vc4/vc4_drv.c | 20 +-------------------
 1 file changed, 1 insertion(+), 19 deletions(-)

diff --git a/drivers/gpu/drm/vc4/vc4_drv.c b/drivers/gpu/drm/vc4/vc4_drv.c
index 94b99c90425a..96bb90325995 100644
--- a/drivers/gpu/drm/vc4/vc4_drv.c
+++ b/drivers/gpu/drm/vc4/vc4_drv.c
@@ -246,24 +246,6 @@ static void vc4_match_add_drivers(struct device *dev,
 	}
 }
 
-static void vc4_kick_out_firmware_fb(void)
-{
-	struct apertures_struct *ap;
-
-	ap = alloc_apertures(1);
-	if (!ap)
-		return;
-
-	/* Since VC4 is a UMA device, the simplefb node may have been
-	 * located anywhere in memory.
-	 */
-	ap->ranges[0].base = 0;
-	ap->ranges[0].size = ~0;
-
-	drm_fb_helper_remove_conflicting_framebuffers(ap, "vc4drmfb", false);
-	kfree(ap);
-}
-
 static int vc4_drm_bind(struct device *dev)
 {
 	struct platform_device *pdev = to_platform_device(dev);
@@ -296,7 +278,7 @@ static int vc4_drm_bind(struct device *dev)
 	if (ret)
 		goto gem_destroy;
 
-	vc4_kick_out_firmware_fb();
+	drm_fb_helper_remove_conflicting_framebuffers(NULL, "vc4drmfb", false);
 
 	ret = drm_dev_register(drm, 0);
 	if (ret < 0)
-- 
2.18.0

_______________________________________________
Virtualization mailing list
Virtualization@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/virtualization

[PATCH v3 11/13] drm/vc4: use simpler remove_conflicting_framebuffers(NULL)

[Michał Mirosław]

Use remove_conflicting_framebuffers(NULL) instead of open-coding it.

Signed-off-by: Micha? Miros?aw <mirq-linux@rere.qmqm.pl>
Acked-by: Eric Anholt <eric@anholt.net>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/vc4/vc4_drv.c | 20 +-------------------
 1 file changed, 1 insertion(+), 19 deletions(-)

diff --git a/drivers/gpu/drm/vc4/vc4_drv.c b/drivers/gpu/drm/vc4/vc4_drv.c
index 94b99c90425a..96bb90325995 100644
--- a/drivers/gpu/drm/vc4/vc4_drv.c
+++ b/drivers/gpu/drm/vc4/vc4_drv.c
@@ -246,24 +246,6 @@ static void vc4_match_add_drivers(struct device *dev,
 	}
 }
 
-static void vc4_kick_out_firmware_fb(void)
-{
-	struct apertures_struct *ap;
-
-	ap = alloc_apertures(1);
-	if (!ap)
-		return;
-
-	/* Since VC4 is a UMA device, the simplefb node may have been
-	 * located anywhere in memory.
-	 */
-	ap->ranges[0].base = 0;
-	ap->ranges[0].size = ~0;
-
-	drm_fb_helper_remove_conflicting_framebuffers(ap, "vc4drmfb", false);
-	kfree(ap);
-}
-
 static int vc4_drm_bind(struct device *dev)
 {
 	struct platform_device *pdev = to_platform_device(dev);
@@ -296,7 +278,7 @@ static int vc4_drm_bind(struct device *dev)
 	if (ret)
 		goto gem_destroy;
 
-	vc4_kick_out_firmware_fb();
+	drm_fb_helper_remove_conflicting_framebuffers(NULL, "vc4drmfb", false);
 
 	ret = drm_dev_register(drm, 0);
 	if (ret < 0)
-- 
2.18.0

[PATCH v3 13/13] drm/tegra: kick out simplefb

[Michał Mirosław]

Kick out firmware fb when loading Tegra driver.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/tegra/drm.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/tegra/drm.c b/drivers/gpu/drm/tegra/drm.c
index 7afe2f635f74..b51ec138fed2 100644
--- a/drivers/gpu/drm/tegra/drm.c
+++ b/drivers/gpu/drm/tegra/drm.c
@@ -1203,6 +1203,10 @@ static int host1x_drm_probe(struct host1x_device *dev)
 
 	dev_set_drvdata(&dev->dev, drm);
 
+	err = drm_fb_helper_remove_conflicting_framebuffers(NULL, "tegradrmfb", false);
+	if (err < 0)
+		goto unref;
+
 	err = drm_dev_register(drm, 0);
 	if (err < 0)
 		goto unref;
-- 
2.18.0


_______________________________________________
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http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

[PATCH v3 12/13] drm/sun4i: use simpler remove_conflicting_framebuffers(NULL)

[Michał Mirosław]

Use remove_conflicting_framebuffers(NULL) instead of duplicating it.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/sun4i/sun4i_drv.c | 18 +-----------------
 1 file changed, 1 insertion(+), 17 deletions(-)

diff --git a/drivers/gpu/drm/sun4i/sun4i_drv.c b/drivers/gpu/drm/sun4i/sun4i_drv.c
index 50d19605c38f..555b5db8036f 100644
--- a/drivers/gpu/drm/sun4i/sun4i_drv.c
+++ b/drivers/gpu/drm/sun4i/sun4i_drv.c
@@ -60,22 +60,6 @@ static struct drm_driver sun4i_drv_driver = {
 	/* Frame Buffer Operations */
 };
 
-static void sun4i_remove_framebuffers(void)
-{
-	struct apertures_struct *ap;
-
-	ap = alloc_apertures(1);
-	if (!ap)
-		return;
-
-	/* The framebuffer can be located anywhere in RAM */
-	ap->ranges[0].base = 0;
-	ap->ranges[0].size = ~0;
-
-	drm_fb_helper_remove_conflicting_framebuffers(ap, "sun4i-drm-fb", false);
-	kfree(ap);
-}
-
 static int sun4i_drv_bind(struct device *dev)
 {
 	struct drm_device *drm;
@@ -118,7 +102,7 @@ static int sun4i_drv_bind(struct device *dev)
 	drm->irq_enabled = true;
 
 	/* Remove early framebuffers (ie. simplefb) */
-	sun4i_remove_framebuffers();
+	drm_fb_helper_remove_conflicting_framebuffers(NULL, "sun4i-drm-fb", false);
 
 	/* Create our framebuffer */
 	ret = sun4i_framebuffer_init(drm);
-- 
2.18.0


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

[PATCH v3 12/13] drm/sun4i: use simpler remove_conflicting_framebuffers(NULL)

[Michał Mirosław]

Use remove_conflicting_framebuffers(NULL) instead of duplicating it.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/sun4i/sun4i_drv.c | 18 +-----------------
 1 file changed, 1 insertion(+), 17 deletions(-)

diff --git a/drivers/gpu/drm/sun4i/sun4i_drv.c b/drivers/gpu/drm/sun4i/sun4i_drv.c
index 50d19605c38f..555b5db8036f 100644
--- a/drivers/gpu/drm/sun4i/sun4i_drv.c
+++ b/drivers/gpu/drm/sun4i/sun4i_drv.c
@@ -60,22 +60,6 @@ static struct drm_driver sun4i_drv_driver = {
 	/* Frame Buffer Operations */
 };
 
-static void sun4i_remove_framebuffers(void)
-{
-	struct apertures_struct *ap;
-
-	ap = alloc_apertures(1);
-	if (!ap)
-		return;
-
-	/* The framebuffer can be located anywhere in RAM */
-	ap->ranges[0].base = 0;
-	ap->ranges[0].size = ~0;
-
-	drm_fb_helper_remove_conflicting_framebuffers(ap, "sun4i-drm-fb", false);
-	kfree(ap);
-}
-
 static int sun4i_drv_bind(struct device *dev)
 {
 	struct drm_device *drm;
@@ -118,7 +102,7 @@ static int sun4i_drv_bind(struct device *dev)
 	drm->irq_enabled = true;
 
 	/* Remove early framebuffers (ie. simplefb) */
-	sun4i_remove_framebuffers();
+	drm_fb_helper_remove_conflicting_framebuffers(NULL, "sun4i-drm-fb", false);
 
 	/* Create our framebuffer */
 	ret = sun4i_framebuffer_init(drm);
-- 
2.18.0

[PATCH v3 13/13] drm/tegra: kick out simplefb

[Michał Mirosław]

Kick out firmware fb when loading Tegra driver.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/tegra/drm.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/tegra/drm.c b/drivers/gpu/drm/tegra/drm.c
index 7afe2f635f74..b51ec138fed2 100644
--- a/drivers/gpu/drm/tegra/drm.c
+++ b/drivers/gpu/drm/tegra/drm.c
@@ -1203,6 +1203,10 @@ static int host1x_drm_probe(struct host1x_device *dev)
 
 	dev_set_drvdata(&dev->dev, drm);
 
+	err = drm_fb_helper_remove_conflicting_framebuffers(NULL, "tegradrmfb", false);
+	if (err < 0)
+		goto unref;
+
 	err = drm_dev_register(drm, 0);
 	if (err < 0)
 		goto unref;
-- 
2.18.0

[PATCH v3 12/13] drm/sun4i: use simpler remove_conflicting_framebuffers(NULL)

[Michał Mirosław]

Use remove_conflicting_framebuffers(NULL) instead of duplicating it.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/sun4i/sun4i_drv.c | 18 +-----------------
 1 file changed, 1 insertion(+), 17 deletions(-)

diff --git a/drivers/gpu/drm/sun4i/sun4i_drv.c b/drivers/gpu/drm/sun4i/sun4i_drv.c
index 50d19605c38f..555b5db8036f 100644
--- a/drivers/gpu/drm/sun4i/sun4i_drv.c
+++ b/drivers/gpu/drm/sun4i/sun4i_drv.c
@@ -60,22 +60,6 @@ static struct drm_driver sun4i_drv_driver = {
 	/* Frame Buffer Operations */
 };
 
-static void sun4i_remove_framebuffers(void)
-{
-	struct apertures_struct *ap;
-
-	ap = alloc_apertures(1);
-	if (!ap)
-		return;
-
-	/* The framebuffer can be located anywhere in RAM */
-	ap->ranges[0].base = 0;
-	ap->ranges[0].size = ~0;
-
-	drm_fb_helper_remove_conflicting_framebuffers(ap, "sun4i-drm-fb", false);
-	kfree(ap);
-}
-
 static int sun4i_drv_bind(struct device *dev)
 {
 	struct drm_device *drm;
@@ -118,7 +102,7 @@ static int sun4i_drv_bind(struct device *dev)
 	drm->irq_enabled = true;
 
 	/* Remove early framebuffers (ie. simplefb) */
-	sun4i_remove_framebuffers();
+	drm_fb_helper_remove_conflicting_framebuffers(NULL, "sun4i-drm-fb", false);
 
 	/* Create our framebuffer */
 	ret = sun4i_framebuffer_init(drm);
-- 
2.18.0

_______________________________________________
Virtualization mailing list
Virtualization@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/virtualization

[PATCH v3 13/13] drm/tegra: kick out simplefb

[Michał Mirosław]

Kick out firmware fb when loading Tegra driver.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/tegra/drm.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/tegra/drm.c b/drivers/gpu/drm/tegra/drm.c
index 7afe2f635f74..b51ec138fed2 100644
--- a/drivers/gpu/drm/tegra/drm.c
+++ b/drivers/gpu/drm/tegra/drm.c
@@ -1203,6 +1203,10 @@ static int host1x_drm_probe(struct host1x_device *dev)
 
 	dev_set_drvdata(&dev->dev, drm);
 
+	err = drm_fb_helper_remove_conflicting_framebuffers(NULL, "tegradrmfb", false);
+	if (err < 0)
+		goto unref;
+
 	err = drm_dev_register(drm, 0);
 	if (err < 0)
 		goto unref;
-- 
2.18.0

_______________________________________________
Virtualization mailing list
Virtualization@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/virtualization

[PATCH v3 13/13] drm/tegra: kick out simplefb

[Michał Mirosław]

Kick out firmware fb when loading Tegra driver.

Signed-off-by: Micha? Miros?aw <mirq-linux@rere.qmqm.pl>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/tegra/drm.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/tegra/drm.c b/drivers/gpu/drm/tegra/drm.c
index 7afe2f635f74..b51ec138fed2 100644
--- a/drivers/gpu/drm/tegra/drm.c
+++ b/drivers/gpu/drm/tegra/drm.c
@@ -1203,6 +1203,10 @@ static int host1x_drm_probe(struct host1x_device *dev)
 
 	dev_set_drvdata(&dev->dev, drm);
 
+	err = drm_fb_helper_remove_conflicting_framebuffers(NULL, "tegradrmfb", false);
+	if (err < 0)
+		goto unref;
+
 	err = drm_dev_register(drm, 0);
 	if (err < 0)
 		goto unref;
-- 
2.18.0

[PATCH v3 12/13] drm/sun4i: use simpler remove_conflicting_framebuffers(NULL)

[Michał Mirosław]

Use remove_conflicting_framebuffers(NULL) instead of duplicating it.

Signed-off-by: Micha? Miros?aw <mirq-linux@rere.qmqm.pl>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/sun4i/sun4i_drv.c | 18 +-----------------
 1 file changed, 1 insertion(+), 17 deletions(-)

diff --git a/drivers/gpu/drm/sun4i/sun4i_drv.c b/drivers/gpu/drm/sun4i/sun4i_drv.c
index 50d19605c38f..555b5db8036f 100644
--- a/drivers/gpu/drm/sun4i/sun4i_drv.c
+++ b/drivers/gpu/drm/sun4i/sun4i_drv.c
@@ -60,22 +60,6 @@ static struct drm_driver sun4i_drv_driver = {
 	/* Frame Buffer Operations */
 };
 
-static void sun4i_remove_framebuffers(void)
-{
-	struct apertures_struct *ap;
-
-	ap = alloc_apertures(1);
-	if (!ap)
-		return;
-
-	/* The framebuffer can be located anywhere in RAM */
-	ap->ranges[0].base = 0;
-	ap->ranges[0].size = ~0;
-
-	drm_fb_helper_remove_conflicting_framebuffers(ap, "sun4i-drm-fb", false);
-	kfree(ap);
-}
-
 static int sun4i_drv_bind(struct device *dev)
 {
 	struct drm_device *drm;
@@ -118,7 +102,7 @@ static int sun4i_drv_bind(struct device *dev)
 	drm->irq_enabled = true;
 
 	/* Remove early framebuffers (ie. simplefb) */
-	sun4i_remove_framebuffers();
+	drm_fb_helper_remove_conflicting_framebuffers(NULL, "sun4i-drm-fb", false);
 
 	/* Create our framebuffer */
 	ret = sun4i_framebuffer_init(drm);
-- 
2.18.0

Re: [PATCH v3 00/13] remove_conflicting_framebuffers() cleanup

[Daniel Vetter]

On Sat, Sep 01, 2018 at 04:08:41PM +0200, Michał Mirosław wrote:
> This series cleans up duplicated code for replacing firmware FB
> driver with proper DRI driver and adds handover support to
> Tegra driver.
> 
> This is a sligtly updated version of a series sent on 24 Nov 2017.
> 
> ---
> v2:
>  - rebased on current drm-next
>  - dropped staging/sm750fb changes
>  - added kernel docs for DRM helpers
> v3:
>  - move kerneldoc to fbdev, where functions are implemented
>  - split kerneldoc for remove_conflicting_framebuffers()

Ah, that's not quite what I had in mind. I think having the docs (also) in
the drm helpers would be good, since that's where drm people will look,
and that's the function they'll call. I just wanted you to split the fbdev
and drm parts into 2 patches (since those are two different maintainers).

Anyway, this is ok too, so imo ready for merging. If you can resurrect the
drm docs (with a patch title of "drm/fb-helper: document fbdev remove
functions" or similar) that would be great.

Only thing we need for merging now is the ack from Bartlomiej.
-Daniel

>  - propagate return value in remove_conflicting_pci_framebuffers()
> 
> ---
> Michał Mirosław (13):
>   fbdev: show fbdev number for debugging
>   fbdev: allow apertures == NULL in remove_conflicting_framebuffers()
>   fbdev: add kerneldoc do remove_conflicting_framebuffers()
>   fbdev: add remove_conflicting_pci_framebuffers()
>   drm/amdgpu: use simpler remove_conflicting_pci_framebuffers()
>   drm/bochs: use simpler remove_conflicting_pci_framebuffers()
>   drm/cirrus: use simpler remove_conflicting_pci_framebuffers()
>   drm/mgag200: use simpler remove_conflicting_pci_framebuffers()
>   drm/radeon: use simpler remove_conflicting_pci_framebuffers()
>   drm/virtio: use simpler remove_conflicting_pci_framebuffers()
>   drm/vc4: use simpler remove_conflicting_framebuffers(NULL)
>   drm/sun4i: use simpler remove_conflicting_framebuffers(NULL)
>   drm/tegra: kick out simplefb
> 
>  drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c  | 24 +--------
>  drivers/gpu/drm/bochs/bochs_drv.c        | 18 +------
>  drivers/gpu/drm/cirrus/cirrus_drv.c      | 23 +--------
>  drivers/gpu/drm/mgag200/mgag200_drv.c    | 21 +-------
>  drivers/gpu/drm/mgag200/mgag200_main.c   |  9 ----
>  drivers/gpu/drm/radeon/radeon_drv.c      | 23 +--------
>  drivers/gpu/drm/sun4i/sun4i_drv.c        | 18 +------
>  drivers/gpu/drm/tegra/drm.c              |  4 ++
>  drivers/gpu/drm/vc4/vc4_drv.c            | 20 +-------
>  drivers/gpu/drm/virtio/virtgpu_drm_bus.c | 24 ++-------
>  drivers/video/fbdev/core/fbmem.c         | 63 +++++++++++++++++++++++-
>  include/drm/drm_fb_helper.h              | 12 +++++
>  include/linux/fb.h                       |  2 +
>  13 files changed, 89 insertions(+), 172 deletions(-)
> 
> -- 
> 2.18.0
> 
> _______________________________________________
> 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
_______________________________________________
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Re: [PATCH v3 00/13] remove_conflicting_framebuffers() cleanup

[Daniel Vetter]

On Sat, Sep 01, 2018 at 04:08:41PM +0200, Michał Mirosław wrote:
> This series cleans up duplicated code for replacing firmware FB
> driver with proper DRI driver and adds handover support to
> Tegra driver.
> 
> This is a sligtly updated version of a series sent on 24 Nov 2017.
> 
> ---
> v2:
>  - rebased on current drm-next
>  - dropped staging/sm750fb changes
>  - added kernel docs for DRM helpers
> v3:
>  - move kerneldoc to fbdev, where functions are implemented
>  - split kerneldoc for remove_conflicting_framebuffers()

Ah, that's not quite what I had in mind. I think having the docs (also) in
the drm helpers would be good, since that's where drm people will look,
and that's the function they'll call. I just wanted you to split the fbdev
and drm parts into 2 patches (since those are two different maintainers).

Anyway, this is ok too, so imo ready for merging. If you can resurrect the
drm docs (with a patch title of "drm/fb-helper: document fbdev remove
functions" or similar) that would be great.

Only thing we need for merging now is the ack from Bartlomiej.
-Daniel

>  - propagate return value in remove_conflicting_pci_framebuffers()
> 
> ---
> Michał Mirosław (13):
>   fbdev: show fbdev number for debugging
>   fbdev: allow apertures = NULL in remove_conflicting_framebuffers()
>   fbdev: add kerneldoc do remove_conflicting_framebuffers()
>   fbdev: add remove_conflicting_pci_framebuffers()
>   drm/amdgpu: use simpler remove_conflicting_pci_framebuffers()
>   drm/bochs: use simpler remove_conflicting_pci_framebuffers()
>   drm/cirrus: use simpler remove_conflicting_pci_framebuffers()
>   drm/mgag200: use simpler remove_conflicting_pci_framebuffers()
>   drm/radeon: use simpler remove_conflicting_pci_framebuffers()
>   drm/virtio: use simpler remove_conflicting_pci_framebuffers()
>   drm/vc4: use simpler remove_conflicting_framebuffers(NULL)
>   drm/sun4i: use simpler remove_conflicting_framebuffers(NULL)
>   drm/tegra: kick out simplefb
> 
>  drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c  | 24 +--------
>  drivers/gpu/drm/bochs/bochs_drv.c        | 18 +------
>  drivers/gpu/drm/cirrus/cirrus_drv.c      | 23 +--------
>  drivers/gpu/drm/mgag200/mgag200_drv.c    | 21 +-------
>  drivers/gpu/drm/mgag200/mgag200_main.c   |  9 ----
>  drivers/gpu/drm/radeon/radeon_drv.c      | 23 +--------
>  drivers/gpu/drm/sun4i/sun4i_drv.c        | 18 +------
>  drivers/gpu/drm/tegra/drm.c              |  4 ++
>  drivers/gpu/drm/vc4/vc4_drv.c            | 20 +-------
>  drivers/gpu/drm/virtio/virtgpu_drm_bus.c | 24 ++-------
>  drivers/video/fbdev/core/fbmem.c         | 63 +++++++++++++++++++++++-
>  include/drm/drm_fb_helper.h              | 12 +++++
>  include/linux/fb.h                       |  2 +
>  13 files changed, 89 insertions(+), 172 deletions(-)
> 
> -- 
> 2.18.0
> 
> _______________________________________________
> 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

Re: [PATCH v3 00/13] remove_conflicting_framebuffers() cleanup

[Daniel Vetter]

On Sat, Sep 01, 2018 at 04:08:41PM +0200, Michał Mirosław wrote:
> This series cleans up duplicated code for replacing firmware FB
> driver with proper DRI driver and adds handover support to
> Tegra driver.
> 
> This is a sligtly updated version of a series sent on 24 Nov 2017.
> 
> ---
> v2:
>  - rebased on current drm-next
>  - dropped staging/sm750fb changes
>  - added kernel docs for DRM helpers
> v3:
>  - move kerneldoc to fbdev, where functions are implemented
>  - split kerneldoc for remove_conflicting_framebuffers()

Ah, that's not quite what I had in mind. I think having the docs (also) in
the drm helpers would be good, since that's where drm people will look,
and that's the function they'll call. I just wanted you to split the fbdev
and drm parts into 2 patches (since those are two different maintainers).

Anyway, this is ok too, so imo ready for merging. If you can resurrect the
drm docs (with a patch title of "drm/fb-helper: document fbdev remove
functions" or similar) that would be great.

Only thing we need for merging now is the ack from Bartlomiej.
-Daniel

>  - propagate return value in remove_conflicting_pci_framebuffers()
> 
> ---
> Michał Mirosław (13):
>   fbdev: show fbdev number for debugging
>   fbdev: allow apertures == NULL in remove_conflicting_framebuffers()
>   fbdev: add kerneldoc do remove_conflicting_framebuffers()
>   fbdev: add remove_conflicting_pci_framebuffers()
>   drm/amdgpu: use simpler remove_conflicting_pci_framebuffers()
>   drm/bochs: use simpler remove_conflicting_pci_framebuffers()
>   drm/cirrus: use simpler remove_conflicting_pci_framebuffers()
>   drm/mgag200: use simpler remove_conflicting_pci_framebuffers()
>   drm/radeon: use simpler remove_conflicting_pci_framebuffers()
>   drm/virtio: use simpler remove_conflicting_pci_framebuffers()
>   drm/vc4: use simpler remove_conflicting_framebuffers(NULL)
>   drm/sun4i: use simpler remove_conflicting_framebuffers(NULL)
>   drm/tegra: kick out simplefb
> 
>  drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c  | 24 +--------
>  drivers/gpu/drm/bochs/bochs_drv.c        | 18 +------
>  drivers/gpu/drm/cirrus/cirrus_drv.c      | 23 +--------
>  drivers/gpu/drm/mgag200/mgag200_drv.c    | 21 +-------
>  drivers/gpu/drm/mgag200/mgag200_main.c   |  9 ----
>  drivers/gpu/drm/radeon/radeon_drv.c      | 23 +--------
>  drivers/gpu/drm/sun4i/sun4i_drv.c        | 18 +------
>  drivers/gpu/drm/tegra/drm.c              |  4 ++
>  drivers/gpu/drm/vc4/vc4_drv.c            | 20 +-------
>  drivers/gpu/drm/virtio/virtgpu_drm_bus.c | 24 ++-------
>  drivers/video/fbdev/core/fbmem.c         | 63 +++++++++++++++++++++++-
>  include/drm/drm_fb_helper.h              | 12 +++++
>  include/linux/fb.h                       |  2 +
>  13 files changed, 89 insertions(+), 172 deletions(-)
> 
> -- 
> 2.18.0
> 
> _______________________________________________
> 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
_______________________________________________
Virtualization mailing list
Virtualization@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/virtualization

[PATCH v3 00/13] remove_conflicting_framebuffers() cleanup

[Daniel Vetter]

On Sat, Sep 01, 2018 at 04:08:41PM +0200, Micha? Miros?aw wrote:
> This series cleans up duplicated code for replacing firmware FB
> driver with proper DRI driver and adds handover support to
> Tegra driver.
> 
> This is a sligtly updated version of a series sent on 24 Nov 2017.
> 
> ---
> v2:
>  - rebased on current drm-next
>  - dropped staging/sm750fb changes
>  - added kernel docs for DRM helpers
> v3:
>  - move kerneldoc to fbdev, where functions are implemented
>  - split kerneldoc for remove_conflicting_framebuffers()

Ah, that's not quite what I had in mind. I think having the docs (also) in
the drm helpers would be good, since that's where drm people will look,
and that's the function they'll call. I just wanted you to split the fbdev
and drm parts into 2 patches (since those are two different maintainers).

Anyway, this is ok too, so imo ready for merging. If you can resurrect the
drm docs (with a patch title of "drm/fb-helper: document fbdev remove
functions" or similar) that would be great.

Only thing we need for merging now is the ack from Bartlomiej.
-Daniel

>  - propagate return value in remove_conflicting_pci_framebuffers()
> 
> ---
> Micha? Miros?aw (13):
>   fbdev: show fbdev number for debugging
>   fbdev: allow apertures == NULL in remove_conflicting_framebuffers()
>   fbdev: add kerneldoc do remove_conflicting_framebuffers()
>   fbdev: add remove_conflicting_pci_framebuffers()
>   drm/amdgpu: use simpler remove_conflicting_pci_framebuffers()
>   drm/bochs: use simpler remove_conflicting_pci_framebuffers()
>   drm/cirrus: use simpler remove_conflicting_pci_framebuffers()
>   drm/mgag200: use simpler remove_conflicting_pci_framebuffers()
>   drm/radeon: use simpler remove_conflicting_pci_framebuffers()
>   drm/virtio: use simpler remove_conflicting_pci_framebuffers()
>   drm/vc4: use simpler remove_conflicting_framebuffers(NULL)
>   drm/sun4i: use simpler remove_conflicting_framebuffers(NULL)
>   drm/tegra: kick out simplefb
> 
>  drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c  | 24 +--------
>  drivers/gpu/drm/bochs/bochs_drv.c        | 18 +------
>  drivers/gpu/drm/cirrus/cirrus_drv.c      | 23 +--------
>  drivers/gpu/drm/mgag200/mgag200_drv.c    | 21 +-------
>  drivers/gpu/drm/mgag200/mgag200_main.c   |  9 ----
>  drivers/gpu/drm/radeon/radeon_drv.c      | 23 +--------
>  drivers/gpu/drm/sun4i/sun4i_drv.c        | 18 +------
>  drivers/gpu/drm/tegra/drm.c              |  4 ++
>  drivers/gpu/drm/vc4/vc4_drv.c            | 20 +-------
>  drivers/gpu/drm/virtio/virtgpu_drm_bus.c | 24 ++-------
>  drivers/video/fbdev/core/fbmem.c         | 63 +++++++++++++++++++++++-
>  include/drm/drm_fb_helper.h              | 12 +++++
>  include/linux/fb.h                       |  2 +
>  13 files changed, 89 insertions(+), 172 deletions(-)
> 
> -- 
> 2.18.0
> 
> _______________________________________________
> dri-devel mailing list
> dri-devel at lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel

-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch

Re: [PATCH v3 00/13] remove_conflicting_framebuffers() cleanup

[Bartlomiej Zolnierkiewicz]

On Monday, September 03, 2018 09:43:15 AM Daniel Vetter wrote:
> On Sat, Sep 01, 2018 at 04:08:41PM +0200, Michał Mirosław wrote:
> > This series cleans up duplicated code for replacing firmware FB
> > driver with proper DRI driver and adds handover support to
> > Tegra driver.
> > 
> > This is a sligtly updated version of a series sent on 24 Nov 2017.
> > 
> > ---
> > v2:
> >  - rebased on current drm-next
> >  - dropped staging/sm750fb changes
> >  - added kernel docs for DRM helpers
> > v3:
> >  - move kerneldoc to fbdev, where functions are implemented
> >  - split kerneldoc for remove_conflicting_framebuffers()
> 
> Ah, that's not quite what I had in mind. I think having the docs (also) in
> the drm helpers would be good, since that's where drm people will look,
> and that's the function they'll call. I just wanted you to split the fbdev
> and drm parts into 2 patches (since those are two different maintainers).
> 
> Anyway, this is ok too, so imo ready for merging. If you can resurrect the
> drm docs (with a patch title of "drm/fb-helper: document fbdev remove
> functions" or similar) that would be great.
> 
> Only thing we need for merging now is the ack from Bartlomiej.

For the whole patchset:

Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>

> -Daniel
> 
> >  - propagate return value in remove_conflicting_pci_framebuffers()
> > 
> > ---
> > Michał Mirosław (13):
> >   fbdev: show fbdev number for debugging
> >   fbdev: allow apertures == NULL in remove_conflicting_framebuffers()
> >   fbdev: add kerneldoc do remove_conflicting_framebuffers()
> >   fbdev: add remove_conflicting_pci_framebuffers()
> >   drm/amdgpu: use simpler remove_conflicting_pci_framebuffers()
> >   drm/bochs: use simpler remove_conflicting_pci_framebuffers()
> >   drm/cirrus: use simpler remove_conflicting_pci_framebuffers()
> >   drm/mgag200: use simpler remove_conflicting_pci_framebuffers()
> >   drm/radeon: use simpler remove_conflicting_pci_framebuffers()
> >   drm/virtio: use simpler remove_conflicting_pci_framebuffers()
> >   drm/vc4: use simpler remove_conflicting_framebuffers(NULL)
> >   drm/sun4i: use simpler remove_conflicting_framebuffers(NULL)
> >   drm/tegra: kick out simplefb
> > 
> >  drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c  | 24 +--------
> >  drivers/gpu/drm/bochs/bochs_drv.c        | 18 +------
> >  drivers/gpu/drm/cirrus/cirrus_drv.c      | 23 +--------
> >  drivers/gpu/drm/mgag200/mgag200_drv.c    | 21 +-------
> >  drivers/gpu/drm/mgag200/mgag200_main.c   |  9 ----
> >  drivers/gpu/drm/radeon/radeon_drv.c      | 23 +--------
> >  drivers/gpu/drm/sun4i/sun4i_drv.c        | 18 +------
> >  drivers/gpu/drm/tegra/drm.c              |  4 ++
> >  drivers/gpu/drm/vc4/vc4_drv.c            | 20 +-------
> >  drivers/gpu/drm/virtio/virtgpu_drm_bus.c | 24 ++-------
> >  drivers/video/fbdev/core/fbmem.c         | 63 +++++++++++++++++++++++-
> >  include/drm/drm_fb_helper.h              | 12 +++++
> >  include/linux/fb.h                       |  2 +
> >  13 files changed, 89 insertions(+), 172 deletions(-)

Best regards,
--
Bartlomiej Zolnierkiewicz
Samsung R&D Institute Poland
Samsung Electronics

_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx

Re: [PATCH v3 00/13] remove_conflicting_framebuffers() cleanup

[Bartlomiej Zolnierkiewicz]

On Monday, September 03, 2018 09:43:15 AM Daniel Vetter wrote:
> On Sat, Sep 01, 2018 at 04:08:41PM +0200, Michał Mirosław wrote:
> > This series cleans up duplicated code for replacing firmware FB
> > driver with proper DRI driver and adds handover support to
> > Tegra driver.
> > 
> > This is a sligtly updated version of a series sent on 24 Nov 2017.
> > 
> > ---
> > v2:
> >  - rebased on current drm-next
> >  - dropped staging/sm750fb changes
> >  - added kernel docs for DRM helpers
> > v3:
> >  - move kerneldoc to fbdev, where functions are implemented
> >  - split kerneldoc for remove_conflicting_framebuffers()
> 
> Ah, that's not quite what I had in mind. I think having the docs (also) in
> the drm helpers would be good, since that's where drm people will look,
> and that's the function they'll call. I just wanted you to split the fbdev
> and drm parts into 2 patches (since those are two different maintainers).
> 
> Anyway, this is ok too, so imo ready for merging. If you can resurrect the
> drm docs (with a patch title of "drm/fb-helper: document fbdev remove
> functions" or similar) that would be great.
> 
> Only thing we need for merging now is the ack from Bartlomiej.

For the whole patchset:

Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>

> -Daniel
> 
> >  - propagate return value in remove_conflicting_pci_framebuffers()
> > 
> > ---
> > Michał Mirosław (13):
> >   fbdev: show fbdev number for debugging
> >   fbdev: allow apertures == NULL in remove_conflicting_framebuffers()
> >   fbdev: add kerneldoc do remove_conflicting_framebuffers()
> >   fbdev: add remove_conflicting_pci_framebuffers()
> >   drm/amdgpu: use simpler remove_conflicting_pci_framebuffers()
> >   drm/bochs: use simpler remove_conflicting_pci_framebuffers()
> >   drm/cirrus: use simpler remove_conflicting_pci_framebuffers()
> >   drm/mgag200: use simpler remove_conflicting_pci_framebuffers()
> >   drm/radeon: use simpler remove_conflicting_pci_framebuffers()
> >   drm/virtio: use simpler remove_conflicting_pci_framebuffers()
> >   drm/vc4: use simpler remove_conflicting_framebuffers(NULL)
> >   drm/sun4i: use simpler remove_conflicting_framebuffers(NULL)
> >   drm/tegra: kick out simplefb
> > 
> >  drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c  | 24 +--------
> >  drivers/gpu/drm/bochs/bochs_drv.c        | 18 +------
> >  drivers/gpu/drm/cirrus/cirrus_drv.c      | 23 +--------
> >  drivers/gpu/drm/mgag200/mgag200_drv.c    | 21 +-------
> >  drivers/gpu/drm/mgag200/mgag200_main.c   |  9 ----
> >  drivers/gpu/drm/radeon/radeon_drv.c      | 23 +--------
> >  drivers/gpu/drm/sun4i/sun4i_drv.c        | 18 +------
> >  drivers/gpu/drm/tegra/drm.c              |  4 ++
> >  drivers/gpu/drm/vc4/vc4_drv.c            | 20 +-------
> >  drivers/gpu/drm/virtio/virtgpu_drm_bus.c | 24 ++-------
> >  drivers/video/fbdev/core/fbmem.c         | 63 +++++++++++++++++++++++-
> >  include/drm/drm_fb_helper.h              | 12 +++++
> >  include/linux/fb.h                       |  2 +
> >  13 files changed, 89 insertions(+), 172 deletions(-)

Best regards,
--
Bartlomiej Zolnierkiewicz
Samsung R&D Institute Poland
Samsung Electronics

Re: [PATCH v3 00/13] remove_conflicting_framebuffers() cleanup

[Bartlomiej Zolnierkiewicz]

On Monday, September 03, 2018 09:43:15 AM Daniel Vetter wrote:
> On Sat, Sep 01, 2018 at 04:08:41PM +0200, Michał Mirosław wrote:
> > This series cleans up duplicated code for replacing firmware FB
> > driver with proper DRI driver and adds handover support to
> > Tegra driver.
> > 
> > This is a sligtly updated version of a series sent on 24 Nov 2017.
> > 
> > ---
> > v2:
> >  - rebased on current drm-next
> >  - dropped staging/sm750fb changes
> >  - added kernel docs for DRM helpers
> > v3:
> >  - move kerneldoc to fbdev, where functions are implemented
> >  - split kerneldoc for remove_conflicting_framebuffers()
> 
> Ah, that's not quite what I had in mind. I think having the docs (also) in
> the drm helpers would be good, since that's where drm people will look,
> and that's the function they'll call. I just wanted you to split the fbdev
> and drm parts into 2 patches (since those are two different maintainers).
> 
> Anyway, this is ok too, so imo ready for merging. If you can resurrect the
> drm docs (with a patch title of "drm/fb-helper: document fbdev remove
> functions" or similar) that would be great.
> 
> Only thing we need for merging now is the ack from Bartlomiej.

For the whole patchset:

Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>

> -Daniel
> 
> >  - propagate return value in remove_conflicting_pci_framebuffers()
> > 
> > ---
> > Michał Mirosław (13):
> >   fbdev: show fbdev number for debugging
> >   fbdev: allow apertures == NULL in remove_conflicting_framebuffers()
> >   fbdev: add kerneldoc do remove_conflicting_framebuffers()
> >   fbdev: add remove_conflicting_pci_framebuffers()
> >   drm/amdgpu: use simpler remove_conflicting_pci_framebuffers()
> >   drm/bochs: use simpler remove_conflicting_pci_framebuffers()
> >   drm/cirrus: use simpler remove_conflicting_pci_framebuffers()
> >   drm/mgag200: use simpler remove_conflicting_pci_framebuffers()
> >   drm/radeon: use simpler remove_conflicting_pci_framebuffers()
> >   drm/virtio: use simpler remove_conflicting_pci_framebuffers()
> >   drm/vc4: use simpler remove_conflicting_framebuffers(NULL)
> >   drm/sun4i: use simpler remove_conflicting_framebuffers(NULL)
> >   drm/tegra: kick out simplefb
> > 
> >  drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c  | 24 +--------
> >  drivers/gpu/drm/bochs/bochs_drv.c        | 18 +------
> >  drivers/gpu/drm/cirrus/cirrus_drv.c      | 23 +--------
> >  drivers/gpu/drm/mgag200/mgag200_drv.c    | 21 +-------
> >  drivers/gpu/drm/mgag200/mgag200_main.c   |  9 ----
> >  drivers/gpu/drm/radeon/radeon_drv.c      | 23 +--------
> >  drivers/gpu/drm/sun4i/sun4i_drv.c        | 18 +------
> >  drivers/gpu/drm/tegra/drm.c              |  4 ++
> >  drivers/gpu/drm/vc4/vc4_drv.c            | 20 +-------
> >  drivers/gpu/drm/virtio/virtgpu_drm_bus.c | 24 ++-------
> >  drivers/video/fbdev/core/fbmem.c         | 63 +++++++++++++++++++++++-
> >  include/drm/drm_fb_helper.h              | 12 +++++
> >  include/linux/fb.h                       |  2 +
> >  13 files changed, 89 insertions(+), 172 deletions(-)

Best regards,
--
Bartlomiej Zolnierkiewicz
Samsung R&D Institute Poland
Samsung Electronics

_______________________________________________
Virtualization mailing list
Virtualization@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/virtualization

[PATCH v3 00/13] remove_conflicting_framebuffers() cleanup

[Bartlomiej Zolnierkiewicz]

On Monday, September 03, 2018 09:43:15 AM Daniel Vetter wrote:
> On Sat, Sep 01, 2018 at 04:08:41PM +0200, Micha? Miros?aw wrote:
> > This series cleans up duplicated code for replacing firmware FB
> > driver with proper DRI driver and adds handover support to
> > Tegra driver.
> > 
> > This is a sligtly updated version of a series sent on 24 Nov 2017.
> > 
> > ---
> > v2:
> >  - rebased on current drm-next
> >  - dropped staging/sm750fb changes
> >  - added kernel docs for DRM helpers
> > v3:
> >  - move kerneldoc to fbdev, where functions are implemented
> >  - split kerneldoc for remove_conflicting_framebuffers()
> 
> Ah, that's not quite what I had in mind. I think having the docs (also) in
> the drm helpers would be good, since that's where drm people will look,
> and that's the function they'll call. I just wanted you to split the fbdev
> and drm parts into 2 patches (since those are two different maintainers).
> 
> Anyway, this is ok too, so imo ready for merging. If you can resurrect the
> drm docs (with a patch title of "drm/fb-helper: document fbdev remove
> functions" or similar) that would be great.
> 
> Only thing we need for merging now is the ack from Bartlomiej.

For the whole patchset:

Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>

> -Daniel
> 
> >  - propagate return value in remove_conflicting_pci_framebuffers()
> > 
> > ---
> > Micha? Miros?aw (13):
> >   fbdev: show fbdev number for debugging
> >   fbdev: allow apertures == NULL in remove_conflicting_framebuffers()
> >   fbdev: add kerneldoc do remove_conflicting_framebuffers()
> >   fbdev: add remove_conflicting_pci_framebuffers()
> >   drm/amdgpu: use simpler remove_conflicting_pci_framebuffers()
> >   drm/bochs: use simpler remove_conflicting_pci_framebuffers()
> >   drm/cirrus: use simpler remove_conflicting_pci_framebuffers()
> >   drm/mgag200: use simpler remove_conflicting_pci_framebuffers()
> >   drm/radeon: use simpler remove_conflicting_pci_framebuffers()
> >   drm/virtio: use simpler remove_conflicting_pci_framebuffers()
> >   drm/vc4: use simpler remove_conflicting_framebuffers(NULL)
> >   drm/sun4i: use simpler remove_conflicting_framebuffers(NULL)
> >   drm/tegra: kick out simplefb
> > 
> >  drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c  | 24 +--------
> >  drivers/gpu/drm/bochs/bochs_drv.c        | 18 +------
> >  drivers/gpu/drm/cirrus/cirrus_drv.c      | 23 +--------
> >  drivers/gpu/drm/mgag200/mgag200_drv.c    | 21 +-------
> >  drivers/gpu/drm/mgag200/mgag200_main.c   |  9 ----
> >  drivers/gpu/drm/radeon/radeon_drv.c      | 23 +--------
> >  drivers/gpu/drm/sun4i/sun4i_drv.c        | 18 +------
> >  drivers/gpu/drm/tegra/drm.c              |  4 ++
> >  drivers/gpu/drm/vc4/vc4_drv.c            | 20 +-------
> >  drivers/gpu/drm/virtio/virtgpu_drm_bus.c | 24 ++-------
> >  drivers/video/fbdev/core/fbmem.c         | 63 +++++++++++++++++++++++-
> >  include/drm/drm_fb_helper.h              | 12 +++++
> >  include/linux/fb.h                       |  2 +
> >  13 files changed, 89 insertions(+), 172 deletions(-)

Best regards,
--
Bartlomiej Zolnierkiewicz
Samsung R&D Institute Poland
Samsung Electronics

Re: [PATCH v3 04/13] fbdev: add remove_conflicting_pci_framebuffers()

[Daniel Vetter]

On Sat, Sep 01, 2018 at 04:08:45PM +0200, Michał Mirosław wrote:
> Almost all PCI drivers using remove_conflicting_framebuffers() wrap it
> with the same code.
> 
> ---

This cuts away the sob. Just fyi.
-Daniel

> v2: add kerneldoc for DRM helper
> v3: propagate remove_conflicting_framebuffers() return value
>   + move kerneldoc to where function is implemented
> 
> Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
> ---
>  drivers/video/fbdev/core/fbmem.c | 35 ++++++++++++++++++++++++++++++++
>  include/drm/drm_fb_helper.h      | 12 +++++++++++
>  include/linux/fb.h               |  2 ++
>  3 files changed, 49 insertions(+)
> 
> diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c
> index 2de93b5014e3..cd96b1c62bbe 100644
> --- a/drivers/video/fbdev/core/fbmem.c
> +++ b/drivers/video/fbdev/core/fbmem.c
> @@ -34,6 +34,7 @@
>  #include <linux/fb.h>
>  #include <linux/fbcon.h>
>  #include <linux/mem_encrypt.h>
> +#include <linux/pci.h>
>  
>  #include <asm/fb.h>
>  
> @@ -1812,6 +1813,40 @@ int remove_conflicting_framebuffers(struct apertures_struct *a,
>  }
>  EXPORT_SYMBOL(remove_conflicting_framebuffers);
>  
> +/**
> + * remove_conflicting_pci_framebuffers - remove firmware-configured framebuffers for PCI devices
> + * @pdev: PCI device
> + * @resource_id: index of PCI BAR configuring framebuffer memory
> + * @name: requesting driver name
> + *
> + * This function removes framebuffer devices (eg. initialized by firmware)
> + * using memory range configured for @pdev's BAR @resource_id.
> + *
> + * The function assumes that PCI device with shadowed ROM drives a primary
> + * display and so kicks out vga16fb.
> + */
> +int remove_conflicting_pci_framebuffers(struct pci_dev *pdev, int res_id, const char *name)
> +{
> +	struct apertures_struct *ap;
> +	bool primary = false;
> +	int err;
> +
> +	ap = alloc_apertures(1);
> +	if (!ap)
> +		return -ENOMEM;
> +
> +	ap->ranges[0].base = pci_resource_start(pdev, res_id);
> +	ap->ranges[0].size = pci_resource_len(pdev, res_id);
> +#ifdef CONFIG_X86
> +	primary = pdev->resource[PCI_ROM_RESOURCE].flags &
> +					IORESOURCE_ROM_SHADOW;
> +#endif
> +	err = remove_conflicting_framebuffers(ap, name, primary);
> +	kfree(ap);
> +	return err;
> +}
> +EXPORT_SYMBOL(remove_conflicting_pci_framebuffers);
> +
>  /**
>   *	register_framebuffer - registers a frame buffer device
>   *	@fb_info: frame buffer info structure
> diff --git a/include/drm/drm_fb_helper.h b/include/drm/drm_fb_helper.h
> index b069433e7fc1..20ea856db900 100644
> --- a/include/drm/drm_fb_helper.h
> +++ b/include/drm/drm_fb_helper.h
> @@ -577,4 +577,16 @@ drm_fb_helper_remove_conflicting_framebuffers(struct apertures_struct *a,
>  #endif
>  }
>  
> +static inline int
> +drm_fb_helper_remove_conflicting_pci_framebuffers(struct pci_dev *pdev,
> +						  int resource_id,
> +						  const char *name)
> +{
> +#if IS_REACHABLE(CONFIG_FB)
> +	return remove_conflicting_pci_framebuffers(pdev, resource_id, name);
> +#else
> +	return 0;
> +#endif
> +}
> +
>  #endif
> diff --git a/include/linux/fb.h b/include/linux/fb.h
> index aa74a228bb92..abeffd55b66a 100644
> --- a/include/linux/fb.h
> +++ b/include/linux/fb.h
> @@ -632,6 +632,8 @@ extern ssize_t fb_sys_write(struct fb_info *info, const char __user *buf,
>  extern int register_framebuffer(struct fb_info *fb_info);
>  extern int unregister_framebuffer(struct fb_info *fb_info);
>  extern int unlink_framebuffer(struct fb_info *fb_info);
> +extern int remove_conflicting_pci_framebuffers(struct pci_dev *pdev, int res_id,
> +					       const char *name);
>  extern int remove_conflicting_framebuffers(struct apertures_struct *a,
>  					   const char *name, bool primary);
>  extern int fb_prepare_logo(struct fb_info *fb_info, int rotate);
> -- 
> 2.18.0
> 
> _______________________________________________
> 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
_______________________________________________
Virtualization mailing list
Virtualization@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/virtualization

Re: [PATCH v3 04/13] fbdev: add remove_conflicting_pci_framebuffers()

[Daniel Vetter]

On Sat, Sep 01, 2018 at 04:08:45PM +0200, Michał Mirosław wrote:
> Almost all PCI drivers using remove_conflicting_framebuffers() wrap it
> with the same code.
> 
> ---

This cuts away the sob. Just fyi.
-Daniel

> v2: add kerneldoc for DRM helper
> v3: propagate remove_conflicting_framebuffers() return value
>   + move kerneldoc to where function is implemented
> 
> Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
> ---
>  drivers/video/fbdev/core/fbmem.c | 35 ++++++++++++++++++++++++++++++++
>  include/drm/drm_fb_helper.h      | 12 +++++++++++
>  include/linux/fb.h               |  2 ++
>  3 files changed, 49 insertions(+)
> 
> diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c
> index 2de93b5014e3..cd96b1c62bbe 100644
> --- a/drivers/video/fbdev/core/fbmem.c
> +++ b/drivers/video/fbdev/core/fbmem.c
> @@ -34,6 +34,7 @@
>  #include <linux/fb.h>
>  #include <linux/fbcon.h>
>  #include <linux/mem_encrypt.h>
> +#include <linux/pci.h>
>  
>  #include <asm/fb.h>
>  
> @@ -1812,6 +1813,40 @@ int remove_conflicting_framebuffers(struct apertures_struct *a,
>  }
>  EXPORT_SYMBOL(remove_conflicting_framebuffers);
>  
> +/**
> + * remove_conflicting_pci_framebuffers - remove firmware-configured framebuffers for PCI devices
> + * @pdev: PCI device
> + * @resource_id: index of PCI BAR configuring framebuffer memory
> + * @name: requesting driver name
> + *
> + * This function removes framebuffer devices (eg. initialized by firmware)
> + * using memory range configured for @pdev's BAR @resource_id.
> + *
> + * The function assumes that PCI device with shadowed ROM drives a primary
> + * display and so kicks out vga16fb.
> + */
> +int remove_conflicting_pci_framebuffers(struct pci_dev *pdev, int res_id, const char *name)
> +{
> +	struct apertures_struct *ap;
> +	bool primary = false;
> +	int err;
> +
> +	ap = alloc_apertures(1);
> +	if (!ap)
> +		return -ENOMEM;
> +
> +	ap->ranges[0].base = pci_resource_start(pdev, res_id);
> +	ap->ranges[0].size = pci_resource_len(pdev, res_id);
> +#ifdef CONFIG_X86
> +	primary = pdev->resource[PCI_ROM_RESOURCE].flags &
> +					IORESOURCE_ROM_SHADOW;
> +#endif
> +	err = remove_conflicting_framebuffers(ap, name, primary);
> +	kfree(ap);
> +	return err;
> +}
> +EXPORT_SYMBOL(remove_conflicting_pci_framebuffers);
> +
>  /**
>   *	register_framebuffer - registers a frame buffer device
>   *	@fb_info: frame buffer info structure
> diff --git a/include/drm/drm_fb_helper.h b/include/drm/drm_fb_helper.h
> index b069433e7fc1..20ea856db900 100644
> --- a/include/drm/drm_fb_helper.h
> +++ b/include/drm/drm_fb_helper.h
> @@ -577,4 +577,16 @@ drm_fb_helper_remove_conflicting_framebuffers(struct apertures_struct *a,
>  #endif
>  }
>  
> +static inline int
> +drm_fb_helper_remove_conflicting_pci_framebuffers(struct pci_dev *pdev,
> +						  int resource_id,
> +						  const char *name)
> +{
> +#if IS_REACHABLE(CONFIG_FB)
> +	return remove_conflicting_pci_framebuffers(pdev, resource_id, name);
> +#else
> +	return 0;
> +#endif
> +}
> +
>  #endif
> diff --git a/include/linux/fb.h b/include/linux/fb.h
> index aa74a228bb92..abeffd55b66a 100644
> --- a/include/linux/fb.h
> +++ b/include/linux/fb.h
> @@ -632,6 +632,8 @@ extern ssize_t fb_sys_write(struct fb_info *info, const char __user *buf,
>  extern int register_framebuffer(struct fb_info *fb_info);
>  extern int unregister_framebuffer(struct fb_info *fb_info);
>  extern int unlink_framebuffer(struct fb_info *fb_info);
> +extern int remove_conflicting_pci_framebuffers(struct pci_dev *pdev, int res_id,
> +					       const char *name);
>  extern int remove_conflicting_framebuffers(struct apertures_struct *a,
>  					   const char *name, bool primary);
>  extern int fb_prepare_logo(struct fb_info *fb_info, int rotate);
> -- 
> 2.18.0
> 
> _______________________________________________
> 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

[PATCH v3 04/13] fbdev: add remove_conflicting_pci_framebuffers()

[Daniel Vetter]

On Sat, Sep 01, 2018 at 04:08:45PM +0200, Micha? Miros?aw wrote:
> Almost all PCI drivers using remove_conflicting_framebuffers() wrap it
> with the same code.
> 
> ---

This cuts away the sob. Just fyi.
-Daniel

> v2: add kerneldoc for DRM helper
> v3: propagate remove_conflicting_framebuffers() return value
>   + move kerneldoc to where function is implemented
> 
> Signed-off-by: Micha? Miros?aw <mirq-linux@rere.qmqm.pl>
> ---
>  drivers/video/fbdev/core/fbmem.c | 35 ++++++++++++++++++++++++++++++++
>  include/drm/drm_fb_helper.h      | 12 +++++++++++
>  include/linux/fb.h               |  2 ++
>  3 files changed, 49 insertions(+)
> 
> diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c
> index 2de93b5014e3..cd96b1c62bbe 100644
> --- a/drivers/video/fbdev/core/fbmem.c
> +++ b/drivers/video/fbdev/core/fbmem.c
> @@ -34,6 +34,7 @@
>  #include <linux/fb.h>
>  #include <linux/fbcon.h>
>  #include <linux/mem_encrypt.h>
> +#include <linux/pci.h>
>  
>  #include <asm/fb.h>
>  
> @@ -1812,6 +1813,40 @@ int remove_conflicting_framebuffers(struct apertures_struct *a,
>  }
>  EXPORT_SYMBOL(remove_conflicting_framebuffers);
>  
> +/**
> + * remove_conflicting_pci_framebuffers - remove firmware-configured framebuffers for PCI devices
> + * @pdev: PCI device
> + * @resource_id: index of PCI BAR configuring framebuffer memory
> + * @name: requesting driver name
> + *
> + * This function removes framebuffer devices (eg. initialized by firmware)
> + * using memory range configured for @pdev's BAR @resource_id.
> + *
> + * The function assumes that PCI device with shadowed ROM drives a primary
> + * display and so kicks out vga16fb.
> + */
> +int remove_conflicting_pci_framebuffers(struct pci_dev *pdev, int res_id, const char *name)
> +{
> +	struct apertures_struct *ap;
> +	bool primary = false;
> +	int err;
> +
> +	ap = alloc_apertures(1);
> +	if (!ap)
> +		return -ENOMEM;
> +
> +	ap->ranges[0].base = pci_resource_start(pdev, res_id);
> +	ap->ranges[0].size = pci_resource_len(pdev, res_id);
> +#ifdef CONFIG_X86
> +	primary = pdev->resource[PCI_ROM_RESOURCE].flags &
> +					IORESOURCE_ROM_SHADOW;
> +#endif
> +	err = remove_conflicting_framebuffers(ap, name, primary);
> +	kfree(ap);
> +	return err;
> +}
> +EXPORT_SYMBOL(remove_conflicting_pci_framebuffers);
> +
>  /**
>   *	register_framebuffer - registers a frame buffer device
>   *	@fb_info: frame buffer info structure
> diff --git a/include/drm/drm_fb_helper.h b/include/drm/drm_fb_helper.h
> index b069433e7fc1..20ea856db900 100644
> --- a/include/drm/drm_fb_helper.h
> +++ b/include/drm/drm_fb_helper.h
> @@ -577,4 +577,16 @@ drm_fb_helper_remove_conflicting_framebuffers(struct apertures_struct *a,
>  #endif
>  }
>  
> +static inline int
> +drm_fb_helper_remove_conflicting_pci_framebuffers(struct pci_dev *pdev,
> +						  int resource_id,
> +						  const char *name)
> +{
> +#if IS_REACHABLE(CONFIG_FB)
> +	return remove_conflicting_pci_framebuffers(pdev, resource_id, name);
> +#else
> +	return 0;
> +#endif
> +}
> +
>  #endif
> diff --git a/include/linux/fb.h b/include/linux/fb.h
> index aa74a228bb92..abeffd55b66a 100644
> --- a/include/linux/fb.h
> +++ b/include/linux/fb.h
> @@ -632,6 +632,8 @@ extern ssize_t fb_sys_write(struct fb_info *info, const char __user *buf,
>  extern int register_framebuffer(struct fb_info *fb_info);
>  extern int unregister_framebuffer(struct fb_info *fb_info);
>  extern int unlink_framebuffer(struct fb_info *fb_info);
> +extern int remove_conflicting_pci_framebuffers(struct pci_dev *pdev, int res_id,
> +					       const char *name);
>  extern int remove_conflicting_framebuffers(struct apertures_struct *a,
>  					   const char *name, bool primary);
>  extern int fb_prepare_logo(struct fb_info *fb_info, int rotate);
> -- 
> 2.18.0
> 
> _______________________________________________
> dri-devel mailing list
> dri-devel at lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel

-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch

Re: [PATCH v3 00/13] remove_conflicting_framebuffers() cleanup

[Daniel Vetter]

On Mon, Sep 03, 2018 at 01:31:34PM +0200, Bartlomiej Zolnierkiewicz wrote:
> On Monday, September 03, 2018 09:43:15 AM Daniel Vetter wrote:
> > On Sat, Sep 01, 2018 at 04:08:41PM +0200, Michał Mirosław wrote:
> > > This series cleans up duplicated code for replacing firmware FB
> > > driver with proper DRI driver and adds handover support to
> > > Tegra driver.
> > > 
> > > This is a sligtly updated version of a series sent on 24 Nov 2017.
> > > 
> > > ---
> > > v2:
> > >  - rebased on current drm-next
> > >  - dropped staging/sm750fb changes
> > >  - added kernel docs for DRM helpers
> > > v3:
> > >  - move kerneldoc to fbdev, where functions are implemented
> > >  - split kerneldoc for remove_conflicting_framebuffers()
> > 
> > Ah, that's not quite what I had in mind. I think having the docs (also) in
> > the drm helpers would be good, since that's where drm people will look,
> > and that's the function they'll call. I just wanted you to split the fbdev
> > and drm parts into 2 patches (since those are two different maintainers).
> > 
> > Anyway, this is ok too, so imo ready for merging. If you can resurrect the
> > drm docs (with a patch title of "drm/fb-helper: document fbdev remove
> > functions" or similar) that would be great.
> > 
> > Only thing we need for merging now is the ack from Bartlomiej.
> 
> For the whole patchset:
> 
> Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>

Thanks, entire patch set applied to drm-misc-next for 4.20.
-Daniel

> 
> > -Daniel
> > 
> > >  - propagate return value in remove_conflicting_pci_framebuffers()
> > > 
> > > ---
> > > Michał Mirosław (13):
> > >   fbdev: show fbdev number for debugging
> > >   fbdev: allow apertures == NULL in remove_conflicting_framebuffers()
> > >   fbdev: add kerneldoc do remove_conflicting_framebuffers()
> > >   fbdev: add remove_conflicting_pci_framebuffers()
> > >   drm/amdgpu: use simpler remove_conflicting_pci_framebuffers()
> > >   drm/bochs: use simpler remove_conflicting_pci_framebuffers()
> > >   drm/cirrus: use simpler remove_conflicting_pci_framebuffers()
> > >   drm/mgag200: use simpler remove_conflicting_pci_framebuffers()
> > >   drm/radeon: use simpler remove_conflicting_pci_framebuffers()
> > >   drm/virtio: use simpler remove_conflicting_pci_framebuffers()
> > >   drm/vc4: use simpler remove_conflicting_framebuffers(NULL)
> > >   drm/sun4i: use simpler remove_conflicting_framebuffers(NULL)
> > >   drm/tegra: kick out simplefb
> > > 
> > >  drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c  | 24 +--------
> > >  drivers/gpu/drm/bochs/bochs_drv.c        | 18 +------
> > >  drivers/gpu/drm/cirrus/cirrus_drv.c      | 23 +--------
> > >  drivers/gpu/drm/mgag200/mgag200_drv.c    | 21 +-------
> > >  drivers/gpu/drm/mgag200/mgag200_main.c   |  9 ----
> > >  drivers/gpu/drm/radeon/radeon_drv.c      | 23 +--------
> > >  drivers/gpu/drm/sun4i/sun4i_drv.c        | 18 +------
> > >  drivers/gpu/drm/tegra/drm.c              |  4 ++
> > >  drivers/gpu/drm/vc4/vc4_drv.c            | 20 +-------
> > >  drivers/gpu/drm/virtio/virtgpu_drm_bus.c | 24 ++-------
> > >  drivers/video/fbdev/core/fbmem.c         | 63 +++++++++++++++++++++++-
> > >  include/drm/drm_fb_helper.h              | 12 +++++
> > >  include/linux/fb.h                       |  2 +
> > >  13 files changed, 89 insertions(+), 172 deletions(-)
> 
> Best regards,
> --
> Bartlomiej Zolnierkiewicz
> Samsung R&D Institute Poland
> Samsung Electronics
> 

-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx

Re: [PATCH v3 00/13] remove_conflicting_framebuffers() cleanup

[Daniel Vetter]

On Mon, Sep 03, 2018 at 01:31:34PM +0200, Bartlomiej Zolnierkiewicz wrote:
> On Monday, September 03, 2018 09:43:15 AM Daniel Vetter wrote:
> > On Sat, Sep 01, 2018 at 04:08:41PM +0200, Michał Mirosław wrote:
> > > This series cleans up duplicated code for replacing firmware FB
> > > driver with proper DRI driver and adds handover support to
> > > Tegra driver.
> > > 
> > > This is a sligtly updated version of a series sent on 24 Nov 2017.
> > > 
> > > ---
> > > v2:
> > >  - rebased on current drm-next
> > >  - dropped staging/sm750fb changes
> > >  - added kernel docs for DRM helpers
> > > v3:
> > >  - move kerneldoc to fbdev, where functions are implemented
> > >  - split kerneldoc for remove_conflicting_framebuffers()
> > 
> > Ah, that's not quite what I had in mind. I think having the docs (also) in
> > the drm helpers would be good, since that's where drm people will look,
> > and that's the function they'll call. I just wanted you to split the fbdev
> > and drm parts into 2 patches (since those are two different maintainers).
> > 
> > Anyway, this is ok too, so imo ready for merging. If you can resurrect the
> > drm docs (with a patch title of "drm/fb-helper: document fbdev remove
> > functions" or similar) that would be great.
> > 
> > Only thing we need for merging now is the ack from Bartlomiej.
> 
> For the whole patchset:
> 
> Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>

Thanks, entire patch set applied to drm-misc-next for 4.20.
-Daniel

> 
> > -Daniel
> > 
> > >  - propagate return value in remove_conflicting_pci_framebuffers()
> > > 
> > > ---
> > > Michał Mirosław (13):
> > >   fbdev: show fbdev number for debugging
> > >   fbdev: allow apertures = NULL in remove_conflicting_framebuffers()
> > >   fbdev: add kerneldoc do remove_conflicting_framebuffers()
> > >   fbdev: add remove_conflicting_pci_framebuffers()
> > >   drm/amdgpu: use simpler remove_conflicting_pci_framebuffers()
> > >   drm/bochs: use simpler remove_conflicting_pci_framebuffers()
> > >   drm/cirrus: use simpler remove_conflicting_pci_framebuffers()
> > >   drm/mgag200: use simpler remove_conflicting_pci_framebuffers()
> > >   drm/radeon: use simpler remove_conflicting_pci_framebuffers()
> > >   drm/virtio: use simpler remove_conflicting_pci_framebuffers()
> > >   drm/vc4: use simpler remove_conflicting_framebuffers(NULL)
> > >   drm/sun4i: use simpler remove_conflicting_framebuffers(NULL)
> > >   drm/tegra: kick out simplefb
> > > 
> > >  drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c  | 24 +--------
> > >  drivers/gpu/drm/bochs/bochs_drv.c        | 18 +------
> > >  drivers/gpu/drm/cirrus/cirrus_drv.c      | 23 +--------
> > >  drivers/gpu/drm/mgag200/mgag200_drv.c    | 21 +-------
> > >  drivers/gpu/drm/mgag200/mgag200_main.c   |  9 ----
> > >  drivers/gpu/drm/radeon/radeon_drv.c      | 23 +--------
> > >  drivers/gpu/drm/sun4i/sun4i_drv.c        | 18 +------
> > >  drivers/gpu/drm/tegra/drm.c              |  4 ++
> > >  drivers/gpu/drm/vc4/vc4_drv.c            | 20 +-------
> > >  drivers/gpu/drm/virtio/virtgpu_drm_bus.c | 24 ++-------
> > >  drivers/video/fbdev/core/fbmem.c         | 63 +++++++++++++++++++++++-
> > >  include/drm/drm_fb_helper.h              | 12 +++++
> > >  include/linux/fb.h                       |  2 +
> > >  13 files changed, 89 insertions(+), 172 deletions(-)
> 
> Best regards,
> --
> Bartlomiej Zolnierkiewicz
> Samsung R&D Institute Poland
> Samsung Electronics
> 

-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch

Re: [PATCH v3 00/13] remove_conflicting_framebuffers() cleanup

[Daniel Vetter]

On Mon, Sep 03, 2018 at 01:31:34PM +0200, Bartlomiej Zolnierkiewicz wrote:
> On Monday, September 03, 2018 09:43:15 AM Daniel Vetter wrote:
> > On Sat, Sep 01, 2018 at 04:08:41PM +0200, Michał Mirosław wrote:
> > > This series cleans up duplicated code for replacing firmware FB
> > > driver with proper DRI driver and adds handover support to
> > > Tegra driver.
> > > 
> > > This is a sligtly updated version of a series sent on 24 Nov 2017.
> > > 
> > > ---
> > > v2:
> > >  - rebased on current drm-next
> > >  - dropped staging/sm750fb changes
> > >  - added kernel docs for DRM helpers
> > > v3:
> > >  - move kerneldoc to fbdev, where functions are implemented
> > >  - split kerneldoc for remove_conflicting_framebuffers()
> > 
> > Ah, that's not quite what I had in mind. I think having the docs (also) in
> > the drm helpers would be good, since that's where drm people will look,
> > and that's the function they'll call. I just wanted you to split the fbdev
> > and drm parts into 2 patches (since those are two different maintainers).
> > 
> > Anyway, this is ok too, so imo ready for merging. If you can resurrect the
> > drm docs (with a patch title of "drm/fb-helper: document fbdev remove
> > functions" or similar) that would be great.
> > 
> > Only thing we need for merging now is the ack from Bartlomiej.
> 
> For the whole patchset:
> 
> Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>

Thanks, entire patch set applied to drm-misc-next for 4.20.
-Daniel

> 
> > -Daniel
> > 
> > >  - propagate return value in remove_conflicting_pci_framebuffers()
> > > 
> > > ---
> > > Michał Mirosław (13):
> > >   fbdev: show fbdev number for debugging
> > >   fbdev: allow apertures == NULL in remove_conflicting_framebuffers()
> > >   fbdev: add kerneldoc do remove_conflicting_framebuffers()
> > >   fbdev: add remove_conflicting_pci_framebuffers()
> > >   drm/amdgpu: use simpler remove_conflicting_pci_framebuffers()
> > >   drm/bochs: use simpler remove_conflicting_pci_framebuffers()
> > >   drm/cirrus: use simpler remove_conflicting_pci_framebuffers()
> > >   drm/mgag200: use simpler remove_conflicting_pci_framebuffers()
> > >   drm/radeon: use simpler remove_conflicting_pci_framebuffers()
> > >   drm/virtio: use simpler remove_conflicting_pci_framebuffers()
> > >   drm/vc4: use simpler remove_conflicting_framebuffers(NULL)
> > >   drm/sun4i: use simpler remove_conflicting_framebuffers(NULL)
> > >   drm/tegra: kick out simplefb
> > > 
> > >  drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c  | 24 +--------
> > >  drivers/gpu/drm/bochs/bochs_drv.c        | 18 +------
> > >  drivers/gpu/drm/cirrus/cirrus_drv.c      | 23 +--------
> > >  drivers/gpu/drm/mgag200/mgag200_drv.c    | 21 +-------
> > >  drivers/gpu/drm/mgag200/mgag200_main.c   |  9 ----
> > >  drivers/gpu/drm/radeon/radeon_drv.c      | 23 +--------
> > >  drivers/gpu/drm/sun4i/sun4i_drv.c        | 18 +------
> > >  drivers/gpu/drm/tegra/drm.c              |  4 ++
> > >  drivers/gpu/drm/vc4/vc4_drv.c            | 20 +-------
> > >  drivers/gpu/drm/virtio/virtgpu_drm_bus.c | 24 ++-------
> > >  drivers/video/fbdev/core/fbmem.c         | 63 +++++++++++++++++++++++-
> > >  include/drm/drm_fb_helper.h              | 12 +++++
> > >  include/linux/fb.h                       |  2 +
> > >  13 files changed, 89 insertions(+), 172 deletions(-)
> 
> Best regards,
> --
> Bartlomiej Zolnierkiewicz
> Samsung R&D Institute Poland
> Samsung Electronics
> 

-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
_______________________________________________
Virtualization mailing list
Virtualization@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/virtualization

[PATCH v3 00/13] remove_conflicting_framebuffers() cleanup

[Daniel Vetter]

On Mon, Sep 03, 2018 at 01:31:34PM +0200, Bartlomiej Zolnierkiewicz wrote:
> On Monday, September 03, 2018 09:43:15 AM Daniel Vetter wrote:
> > On Sat, Sep 01, 2018 at 04:08:41PM +0200, Micha? Miros?aw wrote:
> > > This series cleans up duplicated code for replacing firmware FB
> > > driver with proper DRI driver and adds handover support to
> > > Tegra driver.
> > > 
> > > This is a sligtly updated version of a series sent on 24 Nov 2017.
> > > 
> > > ---
> > > v2:
> > >  - rebased on current drm-next
> > >  - dropped staging/sm750fb changes
> > >  - added kernel docs for DRM helpers
> > > v3:
> > >  - move kerneldoc to fbdev, where functions are implemented
> > >  - split kerneldoc for remove_conflicting_framebuffers()
> > 
> > Ah, that's not quite what I had in mind. I think having the docs (also) in
> > the drm helpers would be good, since that's where drm people will look,
> > and that's the function they'll call. I just wanted you to split the fbdev
> > and drm parts into 2 patches (since those are two different maintainers).
> > 
> > Anyway, this is ok too, so imo ready for merging. If you can resurrect the
> > drm docs (with a patch title of "drm/fb-helper: document fbdev remove
> > functions" or similar) that would be great.
> > 
> > Only thing we need for merging now is the ack from Bartlomiej.
> 
> For the whole patchset:
> 
> Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>

Thanks, entire patch set applied to drm-misc-next for 4.20.
-Daniel

> 
> > -Daniel
> > 
> > >  - propagate return value in remove_conflicting_pci_framebuffers()
> > > 
> > > ---
> > > Micha? Miros?aw (13):
> > >   fbdev: show fbdev number for debugging
> > >   fbdev: allow apertures == NULL in remove_conflicting_framebuffers()
> > >   fbdev: add kerneldoc do remove_conflicting_framebuffers()
> > >   fbdev: add remove_conflicting_pci_framebuffers()
> > >   drm/amdgpu: use simpler remove_conflicting_pci_framebuffers()
> > >   drm/bochs: use simpler remove_conflicting_pci_framebuffers()
> > >   drm/cirrus: use simpler remove_conflicting_pci_framebuffers()
> > >   drm/mgag200: use simpler remove_conflicting_pci_framebuffers()
> > >   drm/radeon: use simpler remove_conflicting_pci_framebuffers()
> > >   drm/virtio: use simpler remove_conflicting_pci_framebuffers()
> > >   drm/vc4: use simpler remove_conflicting_framebuffers(NULL)
> > >   drm/sun4i: use simpler remove_conflicting_framebuffers(NULL)
> > >   drm/tegra: kick out simplefb
> > > 
> > >  drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c  | 24 +--------
> > >  drivers/gpu/drm/bochs/bochs_drv.c        | 18 +------
> > >  drivers/gpu/drm/cirrus/cirrus_drv.c      | 23 +--------
> > >  drivers/gpu/drm/mgag200/mgag200_drv.c    | 21 +-------
> > >  drivers/gpu/drm/mgag200/mgag200_main.c   |  9 ----
> > >  drivers/gpu/drm/radeon/radeon_drv.c      | 23 +--------
> > >  drivers/gpu/drm/sun4i/sun4i_drv.c        | 18 +------
> > >  drivers/gpu/drm/tegra/drm.c              |  4 ++
> > >  drivers/gpu/drm/vc4/vc4_drv.c            | 20 +-------
> > >  drivers/gpu/drm/virtio/virtgpu_drm_bus.c | 24 ++-------
> > >  drivers/video/fbdev/core/fbmem.c         | 63 +++++++++++++++++++++++-
> > >  include/drm/drm_fb_helper.h              | 12 +++++
> > >  include/linux/fb.h                       |  2 +
> > >  13 files changed, 89 insertions(+), 172 deletions(-)
> 
> Best regards,
> --
> Bartlomiej Zolnierkiewicz
> Samsung R&D Institute Poland
> Samsung Electronics
> 

-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch

Re: [PATCH v3 04/13] fbdev: add remove_conflicting_pci_framebuffers()

[kbuild test robot]

[-- Attachment #1: Type: text/plain, Size: 25151 bytes --]

Hi Michał,

I love your patch! Perhaps something to improve:

[auto build test WARNING on linus/master]
[also build test WARNING on v4.19-rc2 next-20180831]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Micha-Miros-aw/remove_conflicting_framebuffers-cleanup/20180903-094322
reproduce: make htmldocs
:::::: branch date: 5 hours ago
:::::: commit date: 5 hours ago

All warnings (new ones prefixed by >>):

   WARNING: convert(1) not found, for SVG to PDF conversion install ImageMagick (https://www.imagemagick.org)
   include/linux/srcu.h:175: warning: Function parameter or member 'p' not described in 'srcu_dereference_notrace'
   include/linux/srcu.h:175: warning: Function parameter or member 'sp' not described in 'srcu_dereference_notrace'
   include/linux/gfp.h:1: warning: no structured comments found
   include/net/cfg80211.h:4381: warning: Function parameter or member 'wext.ibss' not described in 'wireless_dev'
   include/net/cfg80211.h:4381: warning: Function parameter or member 'wext.connect' not described in 'wireless_dev'
   include/net/cfg80211.h:4381: warning: Function parameter or member 'wext.keys' not described in 'wireless_dev'
   include/net/cfg80211.h:4381: warning: Function parameter or member 'wext.ie' not described in 'wireless_dev'
   include/net/cfg80211.h:4381: warning: Function parameter or member 'wext.ie_len' not described in 'wireless_dev'
   include/net/cfg80211.h:4381: warning: Function parameter or member 'wext.bssid' not described in 'wireless_dev'
   include/net/cfg80211.h:4381: warning: Function parameter or member 'wext.ssid' not described in 'wireless_dev'
   include/net/cfg80211.h:4381: warning: Function parameter or member 'wext.default_key' not described in 'wireless_dev'
   include/net/cfg80211.h:4381: warning: Function parameter or member 'wext.default_mgmt_key' not described in 'wireless_dev'
   include/net/cfg80211.h:4381: warning: Function parameter or member 'wext.prev_bssid_valid' not described in 'wireless_dev'
   include/net/mac80211.h:2328: warning: Function parameter or member 'radiotap_timestamp.units_pos' not described in 'ieee80211_hw'
   include/net/mac80211.h:2328: warning: Function parameter or member 'radiotap_timestamp.accuracy' not described in 'ieee80211_hw'
   include/net/mac80211.h:977: warning: Function parameter or member 'control.rates' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'control.rts_cts_rate_idx' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'control.use_rts' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'control.use_cts_prot' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'control.short_preamble' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'control.skip_table' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'control.jiffies' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'control.vif' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'control.hw_key' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'control.flags' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'control.enqueue_time' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'ack' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'ack.cookie' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'status.rates' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'status.ack_signal' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'status.ampdu_ack_len' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'status.ampdu_len' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'status.antenna' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'status.tx_time' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'status.is_valid_ack_signal' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'status.status_driver_data' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'driver_rates' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'pad' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'rate_driver_data' not described in 'ieee80211_tx_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'rx_stats_avg' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'rx_stats_avg.signal' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'rx_stats_avg.chain_signal' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'status_stats.filtered' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'status_stats.retry_failed' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'status_stats.retry_count' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'status_stats.lost_packets' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'status_stats.last_tdls_pkt_time' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'status_stats.msdu_retries' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'status_stats.msdu_failed' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'status_stats.last_ack' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'status_stats.last_ack_signal' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'status_stats.ack_signal_filled' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'status_stats.avg_ack_signal' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'tx_stats.packets' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'tx_stats.bytes' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'tx_stats.last_rate' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'tx_stats.msdu' not described in 'sta_info'
   include/linux/mod_devicetable.h:763: warning: Function parameter or member 'driver_data' not described in 'typec_device_id'
   kernel/sched/fair.c:3371: warning: Function parameter or member 'flags' not described in 'attach_entity_load_avg'
   arch/x86/include/asm/atomic.h:84: warning: Excess function parameter 'i' description in 'arch_atomic_sub_and_test'
   arch/x86/include/asm/atomic.h:84: warning: Excess function parameter 'v' description in 'arch_atomic_sub_and_test'
   arch/x86/include/asm/atomic.h:96: warning: Excess function parameter 'v' description in 'arch_atomic_inc'
   arch/x86/include/asm/atomic.h:109: warning: Excess function parameter 'v' description in 'arch_atomic_dec'
   arch/x86/include/asm/atomic.h:124: warning: Excess function parameter 'v' description in 'arch_atomic_dec_and_test'
   arch/x86/include/asm/atomic.h:138: warning: Excess function parameter 'v' description in 'arch_atomic_inc_and_test'
   arch/x86/include/asm/atomic.h:153: warning: Excess function parameter 'i' description in 'arch_atomic_add_negative'
   arch/x86/include/asm/atomic.h:153: warning: Excess function parameter 'v' description in 'arch_atomic_add_negative'
   include/linux/dma-buf.h:304: warning: Function parameter or member 'cb_excl.cb' not described in 'dma_buf'
   include/linux/dma-buf.h:304: warning: Function parameter or member 'cb_excl.poll' not described in 'dma_buf'
   include/linux/dma-buf.h:304: warning: Function parameter or member 'cb_excl.active' not described in 'dma_buf'
   include/linux/dma-buf.h:304: warning: Function parameter or member 'cb_shared.cb' not described in 'dma_buf'
   include/linux/dma-buf.h:304: warning: Function parameter or member 'cb_shared.poll' not described in 'dma_buf'
   include/linux/dma-buf.h:304: warning: Function parameter or member 'cb_shared.active' not described in 'dma_buf'
   include/linux/dma-fence-array.h:54: warning: Function parameter or member 'work' not described in 'dma_fence_array'
>> drivers/video/fbdev/core/fbmem.c:1848: warning: Function parameter or member 'res_id' not described in 'remove_conflicting_pci_framebuffers'
   drivers/video/fbdev/core/fbmem.c:1848: warning: Excess function parameter 'resource_id' description in 'remove_conflicting_pci_framebuffers'
   include/linux/gpio/driver.h:142: warning: Function parameter or member 'request_key' not described in 'gpio_irq_chip'
   include/linux/iio/hw-consumer.h:1: warning: no structured comments found
   include/linux/input/sparse-keymap.h:46: warning: Function parameter or member 'sw' not described in 'key_entry'
   drivers/pci/pci.c:218: warning: Excess function parameter 'p' description in 'pci_dev_str_match_path'
   include/linux/regulator/driver.h:227: warning: Function parameter or member 'resume' not described in 'regulator_ops'
   drivers/regulator/core.c:4479: warning: Excess function parameter 'state' description in 'regulator_suspend'
   arch/s390/include/asm/cio.h:245: warning: Function parameter or member 'esw.esw0' not described in 'irb'
   arch/s390/include/asm/cio.h:245: warning: Function parameter or member 'esw.esw1' not described in 'irb'
   arch/s390/include/asm/cio.h:245: warning: Function parameter or member 'esw.esw2' not described in 'irb'
   arch/s390/include/asm/cio.h:245: warning: Function parameter or member 'esw.esw3' not described in 'irb'
   arch/s390/include/asm/cio.h:245: warning: Function parameter or member 'esw.eadm' not described in 'irb'
   drivers/slimbus/stream.c:1: warning: no structured comments found
   drivers/target/target_core_device.c:1: warning: no structured comments found
   drivers/usb/dwc3/gadget.c:510: warning: Excess function parameter 'dwc' description in 'dwc3_gadget_start_config'
   drivers/usb/typec/class.c:1497: warning: Excess function parameter 'drvdata' description in 'typec_port_register_altmode'
   drivers/usb/typec/class.c:1497: warning: Excess function parameter 'drvdata' description in 'typec_port_register_altmode'
   drivers/usb/typec/class.c:1497: warning: Excess function parameter 'drvdata' description in 'typec_port_register_altmode'
   drivers/usb/typec/class.c:1497: warning: Excess function parameter 'drvdata' description in 'typec_port_register_altmode'
   drivers/usb/typec/class.c:1497: warning: Excess function parameter 'drvdata' description in 'typec_port_register_altmode'
   drivers/usb/typec/class.c:1497: warning: Excess function parameter 'drvdata' description in 'typec_port_register_altmode'
   drivers/usb/typec/class.c:1497: warning: Excess function parameter 'drvdata' description in 'typec_port_register_altmode'
   drivers/usb/typec/class.c:1497: warning: Excess function parameter 'drvdata' description in 'typec_port_register_altmode'
   drivers/usb/typec/class.c:1497: warning: Excess function parameter 'drvdata' description in 'typec_port_register_altmode'
   drivers/usb/typec/class.c:1497: warning: Excess function parameter 'drvdata' description in 'typec_port_register_altmode'
   drivers/usb/typec/class.c:1497: warning: Excess function parameter 'drvdata' description in 'typec_port_register_altmode'
   drivers/usb/typec/class.c:1497: warning: Excess function parameter 'drvdata' description in 'typec_port_register_altmode'
   drivers/usb/typec/bus.c:1: warning: no structured comments found
   drivers/usb/typec/bus.c:268: warning: Function parameter or member 'mode' not described in 'typec_match_altmode'
   drivers/usb/typec/class.c:1497: warning: Excess function parameter 'drvdata' description in 'typec_port_register_altmode'
   drivers/usb/typec/class.c:1: warning: no structured comments found
   include/linux/w1.h:281: warning: Function parameter or member 'of_match_table' not described in 'w1_family'
   fs/direct-io.c:257: warning: Excess function parameter 'offset' description in 'dio_complete'
   fs/file_table.c:1: warning: no structured comments found
   fs/libfs.c:477: warning: Excess function parameter 'available' description in 'simple_write_end'
   fs/posix_acl.c:646: warning: Function parameter or member 'inode' not described in 'posix_acl_update_mode'
   fs/posix_acl.c:646: warning: Function parameter or member 'mode_p' not described in 'posix_acl_update_mode'
   fs/posix_acl.c:646: warning: Function parameter or member 'acl' not described in 'posix_acl_update_mode'
   drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c:183: warning: Function parameter or member 'blockable' not described in 'amdgpu_mn_read_lock'
   drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c:254: warning: Function parameter or member 'blockable' not described in 'amdgpu_mn_invalidate_range_start_gfx'
   drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c:302: warning: Function parameter or member 'blockable' not described in 'amdgpu_mn_invalidate_range_start_hsa'
   drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c:3011: warning: Excess function parameter 'dev' description in 'amdgpu_vm_get_task_info'
   drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c:3012: warning: Function parameter or member 'adev' not described in 'amdgpu_vm_get_task_info'
   drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c:3012: warning: Excess function parameter 'dev' description in 'amdgpu_vm_get_task_info'
   include/drm/drm_drv.h:610: warning: Function parameter or member 'gem_prime_pin' not described in 'drm_driver'
   include/drm/drm_drv.h:610: warning: Function parameter or member 'gem_prime_unpin' not described in 'drm_driver'
   include/drm/drm_drv.h:610: warning: Function parameter or member 'gem_prime_res_obj' not described in 'drm_driver'
   include/drm/drm_drv.h:610: warning: Function parameter or member 'gem_prime_get_sg_table' not described in 'drm_driver'
   include/drm/drm_drv.h:610: warning: Function parameter or member 'gem_prime_import_sg_table' not described in 'drm_driver'
   include/drm/drm_drv.h:610: warning: Function parameter or member 'gem_prime_vmap' not described in 'drm_driver'
   include/drm/drm_drv.h:610: warning: Function parameter or member 'gem_prime_vunmap' not described in 'drm_driver'
   include/drm/drm_drv.h:610: warning: Function parameter or member 'gem_prime_mmap' not described in 'drm_driver'
   include/drm/drm_panel.h:98: warning: Function parameter or member 'link' not described in 'drm_panel'
   drivers/gpu/drm/i915/i915_vma.h:49: warning: cannot understand function prototype: 'struct i915_vma '
   drivers/gpu/drm/i915/i915_vma.h:1: warning: no structured comments found
   drivers/gpu/drm/i915/intel_guc_fwif.h:553: warning: cannot understand function prototype: 'struct guc_log_buffer_state '
   drivers/gpu/drm/i915/i915_trace.h:1: warning: no structured comments found
   include/linux/skbuff.h:860: warning: Function parameter or member 'dev_scratch' not described in 'sk_buff'
   include/linux/skbuff.h:860: warning: Function parameter or member 'list' not described in 'sk_buff'
   include/linux/skbuff.h:860: warning: Function parameter or member 'ip_defrag_offset' not described in 'sk_buff'
   include/linux/skbuff.h:860: warning: Function parameter or member 'skb_mstamp' not described in 'sk_buff'
   include/linux/skbuff.h:860: warning: Function parameter or member '__cloned_offset' not described in 'sk_buff'
   include/linux/skbuff.h:860: warning: Function parameter or member 'head_frag' not described in 'sk_buff'
   include/linux/skbuff.h:860: warning: Function parameter or member '__pkt_type_offset' not described in 'sk_buff'
   include/linux/skbuff.h:860: warning: Function parameter or member 'encapsulation' not described in 'sk_buff'
   include/linux/skbuff.h:860: warning: Function parameter or member 'encap_hdr_csum' not described in 'sk_buff'
   include/linux/skbuff.h:860: warning: Function parameter or member 'csum_valid' not described in 'sk_buff'
   include/linux/skbuff.h:860: warning: Function parameter or member 'csum_complete_sw' not described in 'sk_buff'
   include/linux/skbuff.h:860: warning: Function parameter or member 'csum_level' not described in 'sk_buff'
   include/linux/skbuff.h:860: warning: Function parameter or member 'inner_protocol_type' not described in 'sk_buff'
   include/linux/skbuff.h:860: warning: Function parameter or member 'remcsum_offload' not described in 'sk_buff'
   include/linux/skbuff.h:860: warning: Function parameter or member 'offload_fwd_mark' not described in 'sk_buff'
   include/linux/skbuff.h:860: warning: Function parameter or member 'offload_mr_fwd_mark' not described in 'sk_buff'
   include/linux/skbuff.h:860: warning: Function parameter or member 'sender_cpu' not described in 'sk_buff'
   include/linux/skbuff.h:860: warning: Function parameter or member 'reserved_tailroom' not described in 'sk_buff'
   include/linux/skbuff.h:860: warning: Function parameter or member 'inner_ipproto' not described in 'sk_buff'
   include/net/sock.h:238: warning: Function parameter or member 'skc_addrpair' not described in 'sock_common'
   include/net/sock.h:238: warning: Function parameter or member 'skc_portpair' not described in 'sock_common'
   include/net/sock.h:238: warning: Function parameter or member 'skc_ipv6only' not described in 'sock_common'
   include/net/sock.h:238: warning: Function parameter or member 'skc_net_refcnt' not described in 'sock_common'
   include/net/sock.h:238: warning: Function parameter or member 'skc_v6_daddr' not described in 'sock_common'
   include/net/sock.h:238: warning: Function parameter or member 'skc_v6_rcv_saddr' not described in 'sock_common'
   include/net/sock.h:238: warning: Function parameter or member 'skc_cookie' not described in 'sock_common'
   include/net/sock.h:238: warning: Function parameter or member 'skc_listener' not described in 'sock_common'
   include/net/sock.h:238: warning: Function parameter or member 'skc_tw_dr' not described in 'sock_common'
   include/net/sock.h:238: warning: Function parameter or member 'skc_rcv_wnd' not described in 'sock_common'
   include/net/sock.h:238: warning: Function parameter or member 'skc_tw_rcv_nxt' not described in 'sock_common'
   include/net/sock.h:509: warning: Function parameter or member 'sk_backlog.rmem_alloc' not described in 'sock'
   include/net/sock.h:509: warning: Function parameter or member 'sk_backlog.len' not described in 'sock'
   include/net/sock.h:509: warning: Function parameter or member 'sk_backlog.head' not described in 'sock'
   include/net/sock.h:509: warning: Function parameter or member 'sk_backlog.tail' not described in 'sock'
   include/net/sock.h:509: warning: Function parameter or member 'sk_wq_raw' not described in 'sock'
   include/net/sock.h:509: warning: Function parameter or member 'tcp_rtx_queue' not described in 'sock'
   include/net/sock.h:509: warning: Function parameter or member 'sk_route_forced_caps' not described in 'sock'
   include/net/sock.h:509: warning: Function parameter or member 'sk_txtime_report_errors' not described in 'sock'
   include/net/sock.h:509: warning: Function parameter or member 'sk_validate_xmit_skb' not described in 'sock'
   include/linux/netdevice.h:2018: warning: Function parameter or member 'adj_list.upper' not described in 'net_device'
   include/linux/netdevice.h:2018: warning: Function parameter or member 'adj_list.lower' not described in 'net_device'
   include/linux/netdevice.h:2018: warning: Function parameter or member 'gso_partial_features' not described in 'net_device'
   include/linux/netdevice.h:2018: warning: Function parameter or member 'switchdev_ops' not described in 'net_device'

# https://github.com/0day-ci/linux/commit/eed1edfa16cb1ed0b7530c47d080859c9a2036ec
git remote add linux-review https://github.com/0day-ci/linux
git remote update linux-review
git checkout eed1edfa16cb1ed0b7530c47d080859c9a2036ec
vim +1848 drivers/video/fbdev/core/fbmem.c

712f3147 drivers/video/fbmem.c            Linus Torvalds  2011-05-13  1833  
712f3147 drivers/video/fbmem.c            Linus Torvalds  2011-05-13  1834  /**
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1835   * remove_conflicting_pci_framebuffers - remove firmware-configured framebuffers for PCI devices
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1836   * @pdev: PCI device
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1837   * @resource_id: index of PCI BAR configuring framebuffer memory
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1838   * @name: requesting driver name
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1839   *
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1840   * This function removes framebuffer devices (eg. initialized by firmware)
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1841   * using memory range configured for @pdev's BAR @resource_id.
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1842   *
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1843   * The function assumes that PCI device with shadowed ROM drives a primary
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1844   * display and so kicks out vga16fb.
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1845   */
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1846  int remove_conflicting_pci_framebuffers(struct pci_dev *pdev, int res_id, const char *name)
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1847  {
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01 @1848  	struct apertures_struct *ap;
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1849  	bool primary = false;
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1850  	int err;
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1851  
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1852  	ap = alloc_apertures(1);
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1853  	if (!ap)
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1854  		return -ENOMEM;
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1855  
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1856  	ap->ranges[0].base = pci_resource_start(pdev, res_id);
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1857  	ap->ranges[0].size = pci_resource_len(pdev, res_id);
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1858  #ifdef CONFIG_X86
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1859  	primary = pdev->resource[PCI_ROM_RESOURCE].flags &
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1860  					IORESOURCE_ROM_SHADOW;
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1861  #endif
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1862  	err = remove_conflicting_framebuffers(ap, name, primary);
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1863  	kfree(ap);
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1864  	return err;
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1865  }
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1866  EXPORT_SYMBOL(remove_conflicting_pci_framebuffers);
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1867  

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

Re: [PATCH v3 04/13] fbdev: add remove_conflicting_pci_framebuffers()

[kbuild test robot]

[-- Attachment #1: Type: text/plain, Size: 25151 bytes --]

Hi Michał,

I love your patch! Perhaps something to improve:

[auto build test WARNING on linus/master]
[also build test WARNING on v4.19-rc2 next-20180831]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Micha-Miros-aw/remove_conflicting_framebuffers-cleanup/20180903-094322
reproduce: make htmldocs
:::::: branch date: 5 hours ago
:::::: commit date: 5 hours ago

All warnings (new ones prefixed by >>):

   WARNING: convert(1) not found, for SVG to PDF conversion install ImageMagick (https://www.imagemagick.org)
   include/linux/srcu.h:175: warning: Function parameter or member 'p' not described in 'srcu_dereference_notrace'
   include/linux/srcu.h:175: warning: Function parameter or member 'sp' not described in 'srcu_dereference_notrace'
   include/linux/gfp.h:1: warning: no structured comments found
   include/net/cfg80211.h:4381: warning: Function parameter or member 'wext.ibss' not described in 'wireless_dev'
   include/net/cfg80211.h:4381: warning: Function parameter or member 'wext.connect' not described in 'wireless_dev'
   include/net/cfg80211.h:4381: warning: Function parameter or member 'wext.keys' not described in 'wireless_dev'
   include/net/cfg80211.h:4381: warning: Function parameter or member 'wext.ie' not described in 'wireless_dev'
   include/net/cfg80211.h:4381: warning: Function parameter or member 'wext.ie_len' not described in 'wireless_dev'
   include/net/cfg80211.h:4381: warning: Function parameter or member 'wext.bssid' not described in 'wireless_dev'
   include/net/cfg80211.h:4381: warning: Function parameter or member 'wext.ssid' not described in 'wireless_dev'
   include/net/cfg80211.h:4381: warning: Function parameter or member 'wext.default_key' not described in 'wireless_dev'
   include/net/cfg80211.h:4381: warning: Function parameter or member 'wext.default_mgmt_key' not described in 'wireless_dev'
   include/net/cfg80211.h:4381: warning: Function parameter or member 'wext.prev_bssid_valid' not described in 'wireless_dev'
   include/net/mac80211.h:2328: warning: Function parameter or member 'radiotap_timestamp.units_pos' not described in 'ieee80211_hw'
   include/net/mac80211.h:2328: warning: Function parameter or member 'radiotap_timestamp.accuracy' not described in 'ieee80211_hw'
   include/net/mac80211.h:977: warning: Function parameter or member 'control.rates' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'control.rts_cts_rate_idx' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'control.use_rts' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'control.use_cts_prot' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'control.short_preamble' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'control.skip_table' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'control.jiffies' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'control.vif' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'control.hw_key' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'control.flags' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'control.enqueue_time' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'ack' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'ack.cookie' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'status.rates' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'status.ack_signal' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'status.ampdu_ack_len' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'status.ampdu_len' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'status.antenna' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'status.tx_time' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'status.is_valid_ack_signal' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'status.status_driver_data' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'driver_rates' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'pad' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'rate_driver_data' not described in 'ieee80211_tx_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'rx_stats_avg' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'rx_stats_avg.signal' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'rx_stats_avg.chain_signal' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'status_stats.filtered' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'status_stats.retry_failed' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'status_stats.retry_count' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'status_stats.lost_packets' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'status_stats.last_tdls_pkt_time' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'status_stats.msdu_retries' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'status_stats.msdu_failed' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'status_stats.last_ack' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'status_stats.last_ack_signal' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'status_stats.ack_signal_filled' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'status_stats.avg_ack_signal' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'tx_stats.packets' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'tx_stats.bytes' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'tx_stats.last_rate' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'tx_stats.msdu' not described in 'sta_info'
   include/linux/mod_devicetable.h:763: warning: Function parameter or member 'driver_data' not described in 'typec_device_id'
   kernel/sched/fair.c:3371: warning: Function parameter or member 'flags' not described in 'attach_entity_load_avg'
   arch/x86/include/asm/atomic.h:84: warning: Excess function parameter 'i' description in 'arch_atomic_sub_and_test'
   arch/x86/include/asm/atomic.h:84: warning: Excess function parameter 'v' description in 'arch_atomic_sub_and_test'
   arch/x86/include/asm/atomic.h:96: warning: Excess function parameter 'v' description in 'arch_atomic_inc'
   arch/x86/include/asm/atomic.h:109: warning: Excess function parameter 'v' description in 'arch_atomic_dec'
   arch/x86/include/asm/atomic.h:124: warning: Excess function parameter 'v' description in 'arch_atomic_dec_and_test'
   arch/x86/include/asm/atomic.h:138: warning: Excess function parameter 'v' description in 'arch_atomic_inc_and_test'
   arch/x86/include/asm/atomic.h:153: warning: Excess function parameter 'i' description in 'arch_atomic_add_negative'
   arch/x86/include/asm/atomic.h:153: warning: Excess function parameter 'v' description in 'arch_atomic_add_negative'
   include/linux/dma-buf.h:304: warning: Function parameter or member 'cb_excl.cb' not described in 'dma_buf'
   include/linux/dma-buf.h:304: warning: Function parameter or member 'cb_excl.poll' not described in 'dma_buf'
   include/linux/dma-buf.h:304: warning: Function parameter or member 'cb_excl.active' not described in 'dma_buf'
   include/linux/dma-buf.h:304: warning: Function parameter or member 'cb_shared.cb' not described in 'dma_buf'
   include/linux/dma-buf.h:304: warning: Function parameter or member 'cb_shared.poll' not described in 'dma_buf'
   include/linux/dma-buf.h:304: warning: Function parameter or member 'cb_shared.active' not described in 'dma_buf'
   include/linux/dma-fence-array.h:54: warning: Function parameter or member 'work' not described in 'dma_fence_array'
>> drivers/video/fbdev/core/fbmem.c:1848: warning: Function parameter or member 'res_id' not described in 'remove_conflicting_pci_framebuffers'
   drivers/video/fbdev/core/fbmem.c:1848: warning: Excess function parameter 'resource_id' description in 'remove_conflicting_pci_framebuffers'
   include/linux/gpio/driver.h:142: warning: Function parameter or member 'request_key' not described in 'gpio_irq_chip'
   include/linux/iio/hw-consumer.h:1: warning: no structured comments found
   include/linux/input/sparse-keymap.h:46: warning: Function parameter or member 'sw' not described in 'key_entry'
   drivers/pci/pci.c:218: warning: Excess function parameter 'p' description in 'pci_dev_str_match_path'
   include/linux/regulator/driver.h:227: warning: Function parameter or member 'resume' not described in 'regulator_ops'
   drivers/regulator/core.c:4479: warning: Excess function parameter 'state' description in 'regulator_suspend'
   arch/s390/include/asm/cio.h:245: warning: Function parameter or member 'esw.esw0' not described in 'irb'
   arch/s390/include/asm/cio.h:245: warning: Function parameter or member 'esw.esw1' not described in 'irb'
   arch/s390/include/asm/cio.h:245: warning: Function parameter or member 'esw.esw2' not described in 'irb'
   arch/s390/include/asm/cio.h:245: warning: Function parameter or member 'esw.esw3' not described in 'irb'
   arch/s390/include/asm/cio.h:245: warning: Function parameter or member 'esw.eadm' not described in 'irb'
   drivers/slimbus/stream.c:1: warning: no structured comments found
   drivers/target/target_core_device.c:1: warning: no structured comments found
   drivers/usb/dwc3/gadget.c:510: warning: Excess function parameter 'dwc' description in 'dwc3_gadget_start_config'
   drivers/usb/typec/class.c:1497: warning: Excess function parameter 'drvdata' description in 'typec_port_register_altmode'
   drivers/usb/typec/class.c:1497: warning: Excess function parameter 'drvdata' description in 'typec_port_register_altmode'
   drivers/usb/typec/class.c:1497: warning: Excess function parameter 'drvdata' description in 'typec_port_register_altmode'
   drivers/usb/typec/class.c:1497: warning: Excess function parameter 'drvdata' description in 'typec_port_register_altmode'
   drivers/usb/typec/class.c:1497: warning: Excess function parameter 'drvdata' description in 'typec_port_register_altmode'
   drivers/usb/typec/class.c:1497: warning: Excess function parameter 'drvdata' description in 'typec_port_register_altmode'
   drivers/usb/typec/class.c:1497: warning: Excess function parameter 'drvdata' description in 'typec_port_register_altmode'
   drivers/usb/typec/class.c:1497: warning: Excess function parameter 'drvdata' description in 'typec_port_register_altmode'
   drivers/usb/typec/class.c:1497: warning: Excess function parameter 'drvdata' description in 'typec_port_register_altmode'
   drivers/usb/typec/class.c:1497: warning: Excess function parameter 'drvdata' description in 'typec_port_register_altmode'
   drivers/usb/typec/class.c:1497: warning: Excess function parameter 'drvdata' description in 'typec_port_register_altmode'
   drivers/usb/typec/class.c:1497: warning: Excess function parameter 'drvdata' description in 'typec_port_register_altmode'
   drivers/usb/typec/bus.c:1: warning: no structured comments found
   drivers/usb/typec/bus.c:268: warning: Function parameter or member 'mode' not described in 'typec_match_altmode'
   drivers/usb/typec/class.c:1497: warning: Excess function parameter 'drvdata' description in 'typec_port_register_altmode'
   drivers/usb/typec/class.c:1: warning: no structured comments found
   include/linux/w1.h:281: warning: Function parameter or member 'of_match_table' not described in 'w1_family'
   fs/direct-io.c:257: warning: Excess function parameter 'offset' description in 'dio_complete'
   fs/file_table.c:1: warning: no structured comments found
   fs/libfs.c:477: warning: Excess function parameter 'available' description in 'simple_write_end'
   fs/posix_acl.c:646: warning: Function parameter or member 'inode' not described in 'posix_acl_update_mode'
   fs/posix_acl.c:646: warning: Function parameter or member 'mode_p' not described in 'posix_acl_update_mode'
   fs/posix_acl.c:646: warning: Function parameter or member 'acl' not described in 'posix_acl_update_mode'
   drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c:183: warning: Function parameter or member 'blockable' not described in 'amdgpu_mn_read_lock'
   drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c:254: warning: Function parameter or member 'blockable' not described in 'amdgpu_mn_invalidate_range_start_gfx'
   drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c:302: warning: Function parameter or member 'blockable' not described in 'amdgpu_mn_invalidate_range_start_hsa'
   drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c:3011: warning: Excess function parameter 'dev' description in 'amdgpu_vm_get_task_info'
   drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c:3012: warning: Function parameter or member 'adev' not described in 'amdgpu_vm_get_task_info'
   drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c:3012: warning: Excess function parameter 'dev' description in 'amdgpu_vm_get_task_info'
   include/drm/drm_drv.h:610: warning: Function parameter or member 'gem_prime_pin' not described in 'drm_driver'
   include/drm/drm_drv.h:610: warning: Function parameter or member 'gem_prime_unpin' not described in 'drm_driver'
   include/drm/drm_drv.h:610: warning: Function parameter or member 'gem_prime_res_obj' not described in 'drm_driver'
   include/drm/drm_drv.h:610: warning: Function parameter or member 'gem_prime_get_sg_table' not described in 'drm_driver'
   include/drm/drm_drv.h:610: warning: Function parameter or member 'gem_prime_import_sg_table' not described in 'drm_driver'
   include/drm/drm_drv.h:610: warning: Function parameter or member 'gem_prime_vmap' not described in 'drm_driver'
   include/drm/drm_drv.h:610: warning: Function parameter or member 'gem_prime_vunmap' not described in 'drm_driver'
   include/drm/drm_drv.h:610: warning: Function parameter or member 'gem_prime_mmap' not described in 'drm_driver'
   include/drm/drm_panel.h:98: warning: Function parameter or member 'link' not described in 'drm_panel'
   drivers/gpu/drm/i915/i915_vma.h:49: warning: cannot understand function prototype: 'struct i915_vma '
   drivers/gpu/drm/i915/i915_vma.h:1: warning: no structured comments found
   drivers/gpu/drm/i915/intel_guc_fwif.h:553: warning: cannot understand function prototype: 'struct guc_log_buffer_state '
   drivers/gpu/drm/i915/i915_trace.h:1: warning: no structured comments found
   include/linux/skbuff.h:860: warning: Function parameter or member 'dev_scratch' not described in 'sk_buff'
   include/linux/skbuff.h:860: warning: Function parameter or member 'list' not described in 'sk_buff'
   include/linux/skbuff.h:860: warning: Function parameter or member 'ip_defrag_offset' not described in 'sk_buff'
   include/linux/skbuff.h:860: warning: Function parameter or member 'skb_mstamp' not described in 'sk_buff'
   include/linux/skbuff.h:860: warning: Function parameter or member '__cloned_offset' not described in 'sk_buff'
   include/linux/skbuff.h:860: warning: Function parameter or member 'head_frag' not described in 'sk_buff'
   include/linux/skbuff.h:860: warning: Function parameter or member '__pkt_type_offset' not described in 'sk_buff'
   include/linux/skbuff.h:860: warning: Function parameter or member 'encapsulation' not described in 'sk_buff'
   include/linux/skbuff.h:860: warning: Function parameter or member 'encap_hdr_csum' not described in 'sk_buff'
   include/linux/skbuff.h:860: warning: Function parameter or member 'csum_valid' not described in 'sk_buff'
   include/linux/skbuff.h:860: warning: Function parameter or member 'csum_complete_sw' not described in 'sk_buff'
   include/linux/skbuff.h:860: warning: Function parameter or member 'csum_level' not described in 'sk_buff'
   include/linux/skbuff.h:860: warning: Function parameter or member 'inner_protocol_type' not described in 'sk_buff'
   include/linux/skbuff.h:860: warning: Function parameter or member 'remcsum_offload' not described in 'sk_buff'
   include/linux/skbuff.h:860: warning: Function parameter or member 'offload_fwd_mark' not described in 'sk_buff'
   include/linux/skbuff.h:860: warning: Function parameter or member 'offload_mr_fwd_mark' not described in 'sk_buff'
   include/linux/skbuff.h:860: warning: Function parameter or member 'sender_cpu' not described in 'sk_buff'
   include/linux/skbuff.h:860: warning: Function parameter or member 'reserved_tailroom' not described in 'sk_buff'
   include/linux/skbuff.h:860: warning: Function parameter or member 'inner_ipproto' not described in 'sk_buff'
   include/net/sock.h:238: warning: Function parameter or member 'skc_addrpair' not described in 'sock_common'
   include/net/sock.h:238: warning: Function parameter or member 'skc_portpair' not described in 'sock_common'
   include/net/sock.h:238: warning: Function parameter or member 'skc_ipv6only' not described in 'sock_common'
   include/net/sock.h:238: warning: Function parameter or member 'skc_net_refcnt' not described in 'sock_common'
   include/net/sock.h:238: warning: Function parameter or member 'skc_v6_daddr' not described in 'sock_common'
   include/net/sock.h:238: warning: Function parameter or member 'skc_v6_rcv_saddr' not described in 'sock_common'
   include/net/sock.h:238: warning: Function parameter or member 'skc_cookie' not described in 'sock_common'
   include/net/sock.h:238: warning: Function parameter or member 'skc_listener' not described in 'sock_common'
   include/net/sock.h:238: warning: Function parameter or member 'skc_tw_dr' not described in 'sock_common'
   include/net/sock.h:238: warning: Function parameter or member 'skc_rcv_wnd' not described in 'sock_common'
   include/net/sock.h:238: warning: Function parameter or member 'skc_tw_rcv_nxt' not described in 'sock_common'
   include/net/sock.h:509: warning: Function parameter or member 'sk_backlog.rmem_alloc' not described in 'sock'
   include/net/sock.h:509: warning: Function parameter or member 'sk_backlog.len' not described in 'sock'
   include/net/sock.h:509: warning: Function parameter or member 'sk_backlog.head' not described in 'sock'
   include/net/sock.h:509: warning: Function parameter or member 'sk_backlog.tail' not described in 'sock'
   include/net/sock.h:509: warning: Function parameter or member 'sk_wq_raw' not described in 'sock'
   include/net/sock.h:509: warning: Function parameter or member 'tcp_rtx_queue' not described in 'sock'
   include/net/sock.h:509: warning: Function parameter or member 'sk_route_forced_caps' not described in 'sock'
   include/net/sock.h:509: warning: Function parameter or member 'sk_txtime_report_errors' not described in 'sock'
   include/net/sock.h:509: warning: Function parameter or member 'sk_validate_xmit_skb' not described in 'sock'
   include/linux/netdevice.h:2018: warning: Function parameter or member 'adj_list.upper' not described in 'net_device'
   include/linux/netdevice.h:2018: warning: Function parameter or member 'adj_list.lower' not described in 'net_device'
   include/linux/netdevice.h:2018: warning: Function parameter or member 'gso_partial_features' not described in 'net_device'
   include/linux/netdevice.h:2018: warning: Function parameter or member 'switchdev_ops' not described in 'net_device'

# https://github.com/0day-ci/linux/commit/eed1edfa16cb1ed0b7530c47d080859c9a2036ec
git remote add linux-review https://github.com/0day-ci/linux
git remote update linux-review
git checkout eed1edfa16cb1ed0b7530c47d080859c9a2036ec
vim +1848 drivers/video/fbdev/core/fbmem.c

712f3147 drivers/video/fbmem.c            Linus Torvalds  2011-05-13  1833  
712f3147 drivers/video/fbmem.c            Linus Torvalds  2011-05-13  1834  /**
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1835   * remove_conflicting_pci_framebuffers - remove firmware-configured framebuffers for PCI devices
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1836   * @pdev: PCI device
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1837   * @resource_id: index of PCI BAR configuring framebuffer memory
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1838   * @name: requesting driver name
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1839   *
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1840   * This function removes framebuffer devices (eg. initialized by firmware)
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1841   * using memory range configured for @pdev's BAR @resource_id.
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1842   *
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1843   * The function assumes that PCI device with shadowed ROM drives a primary
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1844   * display and so kicks out vga16fb.
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1845   */
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1846  int remove_conflicting_pci_framebuffers(struct pci_dev *pdev, int res_id, const char *name)
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1847  {
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01 @1848  	struct apertures_struct *ap;
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1849  	bool primary = false;
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1850  	int err;
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1851  
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1852  	ap = alloc_apertures(1);
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1853  	if (!ap)
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1854  		return -ENOMEM;
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1855  
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1856  	ap->ranges[0].base = pci_resource_start(pdev, res_id);
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1857  	ap->ranges[0].size = pci_resource_len(pdev, res_id);
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1858  #ifdef CONFIG_X86
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1859  	primary = pdev->resource[PCI_ROM_RESOURCE].flags &
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1860  					IORESOURCE_ROM_SHADOW;
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1861  #endif
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1862  	err = remove_conflicting_framebuffers(ap, name, primary);
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1863  	kfree(ap);
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1864  	return err;
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1865  }
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1866  EXPORT_SYMBOL(remove_conflicting_pci_framebuffers);
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1867  

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

[-- Attachment #2: .config.gz --]
[-- Type: application/gzip, Size: 6587 bytes --]

Re: [PATCH v3 04/13] fbdev: add remove_conflicting_pci_framebuffers()

[kbuild test robot]

[-- Attachment #1: Type: text/plain, Size: 25151 bytes --]

Hi Michał,

I love your patch! Perhaps something to improve:

[auto build test WARNING on linus/master]
[also build test WARNING on v4.19-rc2 next-20180831]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Micha-Miros-aw/remove_conflicting_framebuffers-cleanup/20180903-094322
reproduce: make htmldocs
:::::: branch date: 5 hours ago
:::::: commit date: 5 hours ago

All warnings (new ones prefixed by >>):

   WARNING: convert(1) not found, for SVG to PDF conversion install ImageMagick (https://www.imagemagick.org)
   include/linux/srcu.h:175: warning: Function parameter or member 'p' not described in 'srcu_dereference_notrace'
   include/linux/srcu.h:175: warning: Function parameter or member 'sp' not described in 'srcu_dereference_notrace'
   include/linux/gfp.h:1: warning: no structured comments found
   include/net/cfg80211.h:4381: warning: Function parameter or member 'wext.ibss' not described in 'wireless_dev'
   include/net/cfg80211.h:4381: warning: Function parameter or member 'wext.connect' not described in 'wireless_dev'
   include/net/cfg80211.h:4381: warning: Function parameter or member 'wext.keys' not described in 'wireless_dev'
   include/net/cfg80211.h:4381: warning: Function parameter or member 'wext.ie' not described in 'wireless_dev'
   include/net/cfg80211.h:4381: warning: Function parameter or member 'wext.ie_len' not described in 'wireless_dev'
   include/net/cfg80211.h:4381: warning: Function parameter or member 'wext.bssid' not described in 'wireless_dev'
   include/net/cfg80211.h:4381: warning: Function parameter or member 'wext.ssid' not described in 'wireless_dev'
   include/net/cfg80211.h:4381: warning: Function parameter or member 'wext.default_key' not described in 'wireless_dev'
   include/net/cfg80211.h:4381: warning: Function parameter or member 'wext.default_mgmt_key' not described in 'wireless_dev'
   include/net/cfg80211.h:4381: warning: Function parameter or member 'wext.prev_bssid_valid' not described in 'wireless_dev'
   include/net/mac80211.h:2328: warning: Function parameter or member 'radiotap_timestamp.units_pos' not described in 'ieee80211_hw'
   include/net/mac80211.h:2328: warning: Function parameter or member 'radiotap_timestamp.accuracy' not described in 'ieee80211_hw'
   include/net/mac80211.h:977: warning: Function parameter or member 'control.rates' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'control.rts_cts_rate_idx' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'control.use_rts' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'control.use_cts_prot' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'control.short_preamble' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'control.skip_table' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'control.jiffies' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'control.vif' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'control.hw_key' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'control.flags' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'control.enqueue_time' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'ack' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'ack.cookie' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'status.rates' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'status.ack_signal' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'status.ampdu_ack_len' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'status.ampdu_len' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'status.antenna' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'status.tx_time' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'status.is_valid_ack_signal' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'status.status_driver_data' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'driver_rates' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'pad' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'rate_driver_data' not described in 'ieee80211_tx_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'rx_stats_avg' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'rx_stats_avg.signal' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'rx_stats_avg.chain_signal' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'status_stats.filtered' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'status_stats.retry_failed' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'status_stats.retry_count' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'status_stats.lost_packets' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'status_stats.last_tdls_pkt_time' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'status_stats.msdu_retries' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'status_stats.msdu_failed' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'status_stats.last_ack' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'status_stats.last_ack_signal' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'status_stats.ack_signal_filled' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'status_stats.avg_ack_signal' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'tx_stats.packets' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'tx_stats.bytes' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'tx_stats.last_rate' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'tx_stats.msdu' not described in 'sta_info'
   include/linux/mod_devicetable.h:763: warning: Function parameter or member 'driver_data' not described in 'typec_device_id'
   kernel/sched/fair.c:3371: warning: Function parameter or member 'flags' not described in 'attach_entity_load_avg'
   arch/x86/include/asm/atomic.h:84: warning: Excess function parameter 'i' description in 'arch_atomic_sub_and_test'
   arch/x86/include/asm/atomic.h:84: warning: Excess function parameter 'v' description in 'arch_atomic_sub_and_test'
   arch/x86/include/asm/atomic.h:96: warning: Excess function parameter 'v' description in 'arch_atomic_inc'
   arch/x86/include/asm/atomic.h:109: warning: Excess function parameter 'v' description in 'arch_atomic_dec'
   arch/x86/include/asm/atomic.h:124: warning: Excess function parameter 'v' description in 'arch_atomic_dec_and_test'
   arch/x86/include/asm/atomic.h:138: warning: Excess function parameter 'v' description in 'arch_atomic_inc_and_test'
   arch/x86/include/asm/atomic.h:153: warning: Excess function parameter 'i' description in 'arch_atomic_add_negative'
   arch/x86/include/asm/atomic.h:153: warning: Excess function parameter 'v' description in 'arch_atomic_add_negative'
   include/linux/dma-buf.h:304: warning: Function parameter or member 'cb_excl.cb' not described in 'dma_buf'
   include/linux/dma-buf.h:304: warning: Function parameter or member 'cb_excl.poll' not described in 'dma_buf'
   include/linux/dma-buf.h:304: warning: Function parameter or member 'cb_excl.active' not described in 'dma_buf'
   include/linux/dma-buf.h:304: warning: Function parameter or member 'cb_shared.cb' not described in 'dma_buf'
   include/linux/dma-buf.h:304: warning: Function parameter or member 'cb_shared.poll' not described in 'dma_buf'
   include/linux/dma-buf.h:304: warning: Function parameter or member 'cb_shared.active' not described in 'dma_buf'
   include/linux/dma-fence-array.h:54: warning: Function parameter or member 'work' not described in 'dma_fence_array'
>> drivers/video/fbdev/core/fbmem.c:1848: warning: Function parameter or member 'res_id' not described in 'remove_conflicting_pci_framebuffers'
   drivers/video/fbdev/core/fbmem.c:1848: warning: Excess function parameter 'resource_id' description in 'remove_conflicting_pci_framebuffers'
   include/linux/gpio/driver.h:142: warning: Function parameter or member 'request_key' not described in 'gpio_irq_chip'
   include/linux/iio/hw-consumer.h:1: warning: no structured comments found
   include/linux/input/sparse-keymap.h:46: warning: Function parameter or member 'sw' not described in 'key_entry'
   drivers/pci/pci.c:218: warning: Excess function parameter 'p' description in 'pci_dev_str_match_path'
   include/linux/regulator/driver.h:227: warning: Function parameter or member 'resume' not described in 'regulator_ops'
   drivers/regulator/core.c:4479: warning: Excess function parameter 'state' description in 'regulator_suspend'
   arch/s390/include/asm/cio.h:245: warning: Function parameter or member 'esw.esw0' not described in 'irb'
   arch/s390/include/asm/cio.h:245: warning: Function parameter or member 'esw.esw1' not described in 'irb'
   arch/s390/include/asm/cio.h:245: warning: Function parameter or member 'esw.esw2' not described in 'irb'
   arch/s390/include/asm/cio.h:245: warning: Function parameter or member 'esw.esw3' not described in 'irb'
   arch/s390/include/asm/cio.h:245: warning: Function parameter or member 'esw.eadm' not described in 'irb'
   drivers/slimbus/stream.c:1: warning: no structured comments found
   drivers/target/target_core_device.c:1: warning: no structured comments found
   drivers/usb/dwc3/gadget.c:510: warning: Excess function parameter 'dwc' description in 'dwc3_gadget_start_config'
   drivers/usb/typec/class.c:1497: warning: Excess function parameter 'drvdata' description in 'typec_port_register_altmode'
   drivers/usb/typec/class.c:1497: warning: Excess function parameter 'drvdata' description in 'typec_port_register_altmode'
   drivers/usb/typec/class.c:1497: warning: Excess function parameter 'drvdata' description in 'typec_port_register_altmode'
   drivers/usb/typec/class.c:1497: warning: Excess function parameter 'drvdata' description in 'typec_port_register_altmode'
   drivers/usb/typec/class.c:1497: warning: Excess function parameter 'drvdata' description in 'typec_port_register_altmode'
   drivers/usb/typec/class.c:1497: warning: Excess function parameter 'drvdata' description in 'typec_port_register_altmode'
   drivers/usb/typec/class.c:1497: warning: Excess function parameter 'drvdata' description in 'typec_port_register_altmode'
   drivers/usb/typec/class.c:1497: warning: Excess function parameter 'drvdata' description in 'typec_port_register_altmode'
   drivers/usb/typec/class.c:1497: warning: Excess function parameter 'drvdata' description in 'typec_port_register_altmode'
   drivers/usb/typec/class.c:1497: warning: Excess function parameter 'drvdata' description in 'typec_port_register_altmode'
   drivers/usb/typec/class.c:1497: warning: Excess function parameter 'drvdata' description in 'typec_port_register_altmode'
   drivers/usb/typec/class.c:1497: warning: Excess function parameter 'drvdata' description in 'typec_port_register_altmode'
   drivers/usb/typec/bus.c:1: warning: no structured comments found
   drivers/usb/typec/bus.c:268: warning: Function parameter or member 'mode' not described in 'typec_match_altmode'
   drivers/usb/typec/class.c:1497: warning: Excess function parameter 'drvdata' description in 'typec_port_register_altmode'
   drivers/usb/typec/class.c:1: warning: no structured comments found
   include/linux/w1.h:281: warning: Function parameter or member 'of_match_table' not described in 'w1_family'
   fs/direct-io.c:257: warning: Excess function parameter 'offset' description in 'dio_complete'
   fs/file_table.c:1: warning: no structured comments found
   fs/libfs.c:477: warning: Excess function parameter 'available' description in 'simple_write_end'
   fs/posix_acl.c:646: warning: Function parameter or member 'inode' not described in 'posix_acl_update_mode'
   fs/posix_acl.c:646: warning: Function parameter or member 'mode_p' not described in 'posix_acl_update_mode'
   fs/posix_acl.c:646: warning: Function parameter or member 'acl' not described in 'posix_acl_update_mode'
   drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c:183: warning: Function parameter or member 'blockable' not described in 'amdgpu_mn_read_lock'
   drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c:254: warning: Function parameter or member 'blockable' not described in 'amdgpu_mn_invalidate_range_start_gfx'
   drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c:302: warning: Function parameter or member 'blockable' not described in 'amdgpu_mn_invalidate_range_start_hsa'
   drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c:3011: warning: Excess function parameter 'dev' description in 'amdgpu_vm_get_task_info'
   drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c:3012: warning: Function parameter or member 'adev' not described in 'amdgpu_vm_get_task_info'
   drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c:3012: warning: Excess function parameter 'dev' description in 'amdgpu_vm_get_task_info'
   include/drm/drm_drv.h:610: warning: Function parameter or member 'gem_prime_pin' not described in 'drm_driver'
   include/drm/drm_drv.h:610: warning: Function parameter or member 'gem_prime_unpin' not described in 'drm_driver'
   include/drm/drm_drv.h:610: warning: Function parameter or member 'gem_prime_res_obj' not described in 'drm_driver'
   include/drm/drm_drv.h:610: warning: Function parameter or member 'gem_prime_get_sg_table' not described in 'drm_driver'
   include/drm/drm_drv.h:610: warning: Function parameter or member 'gem_prime_import_sg_table' not described in 'drm_driver'
   include/drm/drm_drv.h:610: warning: Function parameter or member 'gem_prime_vmap' not described in 'drm_driver'
   include/drm/drm_drv.h:610: warning: Function parameter or member 'gem_prime_vunmap' not described in 'drm_driver'
   include/drm/drm_drv.h:610: warning: Function parameter or member 'gem_prime_mmap' not described in 'drm_driver'
   include/drm/drm_panel.h:98: warning: Function parameter or member 'link' not described in 'drm_panel'
   drivers/gpu/drm/i915/i915_vma.h:49: warning: cannot understand function prototype: 'struct i915_vma '
   drivers/gpu/drm/i915/i915_vma.h:1: warning: no structured comments found
   drivers/gpu/drm/i915/intel_guc_fwif.h:553: warning: cannot understand function prototype: 'struct guc_log_buffer_state '
   drivers/gpu/drm/i915/i915_trace.h:1: warning: no structured comments found
   include/linux/skbuff.h:860: warning: Function parameter or member 'dev_scratch' not described in 'sk_buff'
   include/linux/skbuff.h:860: warning: Function parameter or member 'list' not described in 'sk_buff'
   include/linux/skbuff.h:860: warning: Function parameter or member 'ip_defrag_offset' not described in 'sk_buff'
   include/linux/skbuff.h:860: warning: Function parameter or member 'skb_mstamp' not described in 'sk_buff'
   include/linux/skbuff.h:860: warning: Function parameter or member '__cloned_offset' not described in 'sk_buff'
   include/linux/skbuff.h:860: warning: Function parameter or member 'head_frag' not described in 'sk_buff'
   include/linux/skbuff.h:860: warning: Function parameter or member '__pkt_type_offset' not described in 'sk_buff'
   include/linux/skbuff.h:860: warning: Function parameter or member 'encapsulation' not described in 'sk_buff'
   include/linux/skbuff.h:860: warning: Function parameter or member 'encap_hdr_csum' not described in 'sk_buff'
   include/linux/skbuff.h:860: warning: Function parameter or member 'csum_valid' not described in 'sk_buff'
   include/linux/skbuff.h:860: warning: Function parameter or member 'csum_complete_sw' not described in 'sk_buff'
   include/linux/skbuff.h:860: warning: Function parameter or member 'csum_level' not described in 'sk_buff'
   include/linux/skbuff.h:860: warning: Function parameter or member 'inner_protocol_type' not described in 'sk_buff'
   include/linux/skbuff.h:860: warning: Function parameter or member 'remcsum_offload' not described in 'sk_buff'
   include/linux/skbuff.h:860: warning: Function parameter or member 'offload_fwd_mark' not described in 'sk_buff'
   include/linux/skbuff.h:860: warning: Function parameter or member 'offload_mr_fwd_mark' not described in 'sk_buff'
   include/linux/skbuff.h:860: warning: Function parameter or member 'sender_cpu' not described in 'sk_buff'
   include/linux/skbuff.h:860: warning: Function parameter or member 'reserved_tailroom' not described in 'sk_buff'
   include/linux/skbuff.h:860: warning: Function parameter or member 'inner_ipproto' not described in 'sk_buff'
   include/net/sock.h:238: warning: Function parameter or member 'skc_addrpair' not described in 'sock_common'
   include/net/sock.h:238: warning: Function parameter or member 'skc_portpair' not described in 'sock_common'
   include/net/sock.h:238: warning: Function parameter or member 'skc_ipv6only' not described in 'sock_common'
   include/net/sock.h:238: warning: Function parameter or member 'skc_net_refcnt' not described in 'sock_common'
   include/net/sock.h:238: warning: Function parameter or member 'skc_v6_daddr' not described in 'sock_common'
   include/net/sock.h:238: warning: Function parameter or member 'skc_v6_rcv_saddr' not described in 'sock_common'
   include/net/sock.h:238: warning: Function parameter or member 'skc_cookie' not described in 'sock_common'
   include/net/sock.h:238: warning: Function parameter or member 'skc_listener' not described in 'sock_common'
   include/net/sock.h:238: warning: Function parameter or member 'skc_tw_dr' not described in 'sock_common'
   include/net/sock.h:238: warning: Function parameter or member 'skc_rcv_wnd' not described in 'sock_common'
   include/net/sock.h:238: warning: Function parameter or member 'skc_tw_rcv_nxt' not described in 'sock_common'
   include/net/sock.h:509: warning: Function parameter or member 'sk_backlog.rmem_alloc' not described in 'sock'
   include/net/sock.h:509: warning: Function parameter or member 'sk_backlog.len' not described in 'sock'
   include/net/sock.h:509: warning: Function parameter or member 'sk_backlog.head' not described in 'sock'
   include/net/sock.h:509: warning: Function parameter or member 'sk_backlog.tail' not described in 'sock'
   include/net/sock.h:509: warning: Function parameter or member 'sk_wq_raw' not described in 'sock'
   include/net/sock.h:509: warning: Function parameter or member 'tcp_rtx_queue' not described in 'sock'
   include/net/sock.h:509: warning: Function parameter or member 'sk_route_forced_caps' not described in 'sock'
   include/net/sock.h:509: warning: Function parameter or member 'sk_txtime_report_errors' not described in 'sock'
   include/net/sock.h:509: warning: Function parameter or member 'sk_validate_xmit_skb' not described in 'sock'
   include/linux/netdevice.h:2018: warning: Function parameter or member 'adj_list.upper' not described in 'net_device'
   include/linux/netdevice.h:2018: warning: Function parameter or member 'adj_list.lower' not described in 'net_device'
   include/linux/netdevice.h:2018: warning: Function parameter or member 'gso_partial_features' not described in 'net_device'
   include/linux/netdevice.h:2018: warning: Function parameter or member 'switchdev_ops' not described in 'net_device'

# https://github.com/0day-ci/linux/commit/eed1edfa16cb1ed0b7530c47d080859c9a2036ec
git remote add linux-review https://github.com/0day-ci/linux
git remote update linux-review
git checkout eed1edfa16cb1ed0b7530c47d080859c9a2036ec
vim +1848 drivers/video/fbdev/core/fbmem.c

712f3147 drivers/video/fbmem.c            Linus Torvalds  2011-05-13  1833  
712f3147 drivers/video/fbmem.c            Linus Torvalds  2011-05-13  1834  /**
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1835   * remove_conflicting_pci_framebuffers - remove firmware-configured framebuffers for PCI devices
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1836   * @pdev: PCI device
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1837   * @resource_id: index of PCI BAR configuring framebuffer memory
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1838   * @name: requesting driver name
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1839   *
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1840   * This function removes framebuffer devices (eg. initialized by firmware)
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1841   * using memory range configured for @pdev's BAR @resource_id.
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1842   *
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1843   * The function assumes that PCI device with shadowed ROM drives a primary
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1844   * display and so kicks out vga16fb.
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1845   */
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1846  int remove_conflicting_pci_framebuffers(struct pci_dev *pdev, int res_id, const char *name)
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1847  {
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01 @1848  	struct apertures_struct *ap;
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1849  	bool primary = false;
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1850  	int err;
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1851  
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1852  	ap = alloc_apertures(1);
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1853  	if (!ap)
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1854  		return -ENOMEM;
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1855  
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1856  	ap->ranges[0].base = pci_resource_start(pdev, res_id);
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1857  	ap->ranges[0].size = pci_resource_len(pdev, res_id);
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1858  #ifdef CONFIG_X86
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1859  	primary = pdev->resource[PCI_ROM_RESOURCE].flags &
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1860  					IORESOURCE_ROM_SHADOW;
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1861  #endif
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1862  	err = remove_conflicting_framebuffers(ap, name, primary);
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1863  	kfree(ap);
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1864  	return err;
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1865  }
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1866  EXPORT_SYMBOL(remove_conflicting_pci_framebuffers);
eed1edfa drivers/video/fbdev/core/fbmem.c Michał Mirosław 2018-09-01  1867  

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

[-- Attachment #2: .config.gz --]
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[-- Attachment #3: Type: text/plain, Size: 183 bytes --]

_______________________________________________
Virtualization mailing list
Virtualization@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/virtualization

[PATCH v3 04/13] fbdev: add remove_conflicting_pci_framebuffers()

[kbuild test robot]

Hi Micha?,

I love your patch! Perhaps something to improve:

[auto build test WARNING on linus/master]
[also build test WARNING on v4.19-rc2 next-20180831]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Micha-Miros-aw/remove_conflicting_framebuffers-cleanup/20180903-094322
reproduce: make htmldocs
:::::: branch date: 5 hours ago
:::::: commit date: 5 hours ago

All warnings (new ones prefixed by >>):

   WARNING: convert(1) not found, for SVG to PDF conversion install ImageMagick (https://www.imagemagick.org)
   include/linux/srcu.h:175: warning: Function parameter or member 'p' not described in 'srcu_dereference_notrace'
   include/linux/srcu.h:175: warning: Function parameter or member 'sp' not described in 'srcu_dereference_notrace'
   include/linux/gfp.h:1: warning: no structured comments found
   include/net/cfg80211.h:4381: warning: Function parameter or member 'wext.ibss' not described in 'wireless_dev'
   include/net/cfg80211.h:4381: warning: Function parameter or member 'wext.connect' not described in 'wireless_dev'
   include/net/cfg80211.h:4381: warning: Function parameter or member 'wext.keys' not described in 'wireless_dev'
   include/net/cfg80211.h:4381: warning: Function parameter or member 'wext.ie' not described in 'wireless_dev'
   include/net/cfg80211.h:4381: warning: Function parameter or member 'wext.ie_len' not described in 'wireless_dev'
   include/net/cfg80211.h:4381: warning: Function parameter or member 'wext.bssid' not described in 'wireless_dev'
   include/net/cfg80211.h:4381: warning: Function parameter or member 'wext.ssid' not described in 'wireless_dev'
   include/net/cfg80211.h:4381: warning: Function parameter or member 'wext.default_key' not described in 'wireless_dev'
   include/net/cfg80211.h:4381: warning: Function parameter or member 'wext.default_mgmt_key' not described in 'wireless_dev'
   include/net/cfg80211.h:4381: warning: Function parameter or member 'wext.prev_bssid_valid' not described in 'wireless_dev'
   include/net/mac80211.h:2328: warning: Function parameter or member 'radiotap_timestamp.units_pos' not described in 'ieee80211_hw'
   include/net/mac80211.h:2328: warning: Function parameter or member 'radiotap_timestamp.accuracy' not described in 'ieee80211_hw'
   include/net/mac80211.h:977: warning: Function parameter or member 'control.rates' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'control.rts_cts_rate_idx' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'control.use_rts' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'control.use_cts_prot' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'control.short_preamble' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'control.skip_table' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'control.jiffies' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'control.vif' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'control.hw_key' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'control.flags' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'control.enqueue_time' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'ack' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'ack.cookie' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'status.rates' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'status.ack_signal' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'status.ampdu_ack_len' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'status.ampdu_len' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'status.antenna' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'status.tx_time' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'status.is_valid_ack_signal' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'status.status_driver_data' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'driver_rates' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'pad' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:977: warning: Function parameter or member 'rate_driver_data' not described in 'ieee80211_tx_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'rx_stats_avg' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'rx_stats_avg.signal' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'rx_stats_avg.chain_signal' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'status_stats.filtered' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'status_stats.retry_failed' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'status_stats.retry_count' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'status_stats.lost_packets' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'status_stats.last_tdls_pkt_time' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'status_stats.msdu_retries' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'status_stats.msdu_failed' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'status_stats.last_ack' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'status_stats.last_ack_signal' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'status_stats.ack_signal_filled' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'status_stats.avg_ack_signal' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'tx_stats.packets' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'tx_stats.bytes' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'tx_stats.last_rate' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'tx_stats.msdu' not described in 'sta_info'
   include/linux/mod_devicetable.h:763: warning: Function parameter or member 'driver_data' not described in 'typec_device_id'
   kernel/sched/fair.c:3371: warning: Function parameter or member 'flags' not described in 'attach_entity_load_avg'
   arch/x86/include/asm/atomic.h:84: warning: Excess function parameter 'i' description in 'arch_atomic_sub_and_test'
   arch/x86/include/asm/atomic.h:84: warning: Excess function parameter 'v' description in 'arch_atomic_sub_and_test'
   arch/x86/include/asm/atomic.h:96: warning: Excess function parameter 'v' description in 'arch_atomic_inc'
   arch/x86/include/asm/atomic.h:109: warning: Excess function parameter 'v' description in 'arch_atomic_dec'
   arch/x86/include/asm/atomic.h:124: warning: Excess function parameter 'v' description in 'arch_atomic_dec_and_test'
   arch/x86/include/asm/atomic.h:138: warning: Excess function parameter 'v' description in 'arch_atomic_inc_and_test'
   arch/x86/include/asm/atomic.h:153: warning: Excess function parameter 'i' description in 'arch_atomic_add_negative'
   arch/x86/include/asm/atomic.h:153: warning: Excess function parameter 'v' description in 'arch_atomic_add_negative'
   include/linux/dma-buf.h:304: warning: Function parameter or member 'cb_excl.cb' not described in 'dma_buf'
   include/linux/dma-buf.h:304: warning: Function parameter or member 'cb_excl.poll' not described in 'dma_buf'
   include/linux/dma-buf.h:304: warning: Function parameter or member 'cb_excl.active' not described in 'dma_buf'
   include/linux/dma-buf.h:304: warning: Function parameter or member 'cb_shared.cb' not described in 'dma_buf'
   include/linux/dma-buf.h:304: warning: Function parameter or member 'cb_shared.poll' not described in 'dma_buf'
   include/linux/dma-buf.h:304: warning: Function parameter or member 'cb_shared.active' not described in 'dma_buf'
   include/linux/dma-fence-array.h:54: warning: Function parameter or member 'work' not described in 'dma_fence_array'
>> drivers/video/fbdev/core/fbmem.c:1848: warning: Function parameter or member 'res_id' not described in 'remove_conflicting_pci_framebuffers'
   drivers/video/fbdev/core/fbmem.c:1848: warning: Excess function parameter 'resource_id' description in 'remove_conflicting_pci_framebuffers'
   include/linux/gpio/driver.h:142: warning: Function parameter or member 'request_key' not described in 'gpio_irq_chip'
   include/linux/iio/hw-consumer.h:1: warning: no structured comments found
   include/linux/input/sparse-keymap.h:46: warning: Function parameter or member 'sw' not described in 'key_entry'
   drivers/pci/pci.c:218: warning: Excess function parameter 'p' description in 'pci_dev_str_match_path'
   include/linux/regulator/driver.h:227: warning: Function parameter or member 'resume' not described in 'regulator_ops'
   drivers/regulator/core.c:4479: warning: Excess function parameter 'state' description in 'regulator_suspend'
   arch/s390/include/asm/cio.h:245: warning: Function parameter or member 'esw.esw0' not described in 'irb'
   arch/s390/include/asm/cio.h:245: warning: Function parameter or member 'esw.esw1' not described in 'irb'
   arch/s390/include/asm/cio.h:245: warning: Function parameter or member 'esw.esw2' not described in 'irb'
   arch/s390/include/asm/cio.h:245: warning: Function parameter or member 'esw.esw3' not described in 'irb'
   arch/s390/include/asm/cio.h:245: warning: Function parameter or member 'esw.eadm' not described in 'irb'
   drivers/slimbus/stream.c:1: warning: no structured comments found
   drivers/target/target_core_device.c:1: warning: no structured comments found
   drivers/usb/dwc3/gadget.c:510: warning: Excess function parameter 'dwc' description in 'dwc3_gadget_start_config'
   drivers/usb/typec/class.c:1497: warning: Excess function parameter 'drvdata' description in 'typec_port_register_altmode'
   drivers/usb/typec/class.c:1497: warning: Excess function parameter 'drvdata' description in 'typec_port_register_altmode'
   drivers/usb/typec/class.c:1497: warning: Excess function parameter 'drvdata' description in 'typec_port_register_altmode'
   drivers/usb/typec/class.c:1497: warning: Excess function parameter 'drvdata' description in 'typec_port_register_altmode'
   drivers/usb/typec/class.c:1497: warning: Excess function parameter 'drvdata' description in 'typec_port_register_altmode'
   drivers/usb/typec/class.c:1497: warning: Excess function parameter 'drvdata' description in 'typec_port_register_altmode'
   drivers/usb/typec/class.c:1497: warning: Excess function parameter 'drvdata' description in 'typec_port_register_altmode'
   drivers/usb/typec/class.c:1497: warning: Excess function parameter 'drvdata' description in 'typec_port_register_altmode'
   drivers/usb/typec/class.c:1497: warning: Excess function parameter 'drvdata' description in 'typec_port_register_altmode'
   drivers/usb/typec/class.c:1497: warning: Excess function parameter 'drvdata' description in 'typec_port_register_altmode'
   drivers/usb/typec/class.c:1497: warning: Excess function parameter 'drvdata' description in 'typec_port_register_altmode'
   drivers/usb/typec/class.c:1497: warning: Excess function parameter 'drvdata' description in 'typec_port_register_altmode'
   drivers/usb/typec/bus.c:1: warning: no structured comments found
   drivers/usb/typec/bus.c:268: warning: Function parameter or member 'mode' not described in 'typec_match_altmode'
   drivers/usb/typec/class.c:1497: warning: Excess function parameter 'drvdata' description in 'typec_port_register_altmode'
   drivers/usb/typec/class.c:1: warning: no structured comments found
   include/linux/w1.h:281: warning: Function parameter or member 'of_match_table' not described in 'w1_family'
   fs/direct-io.c:257: warning: Excess function parameter 'offset' description in 'dio_complete'
   fs/file_table.c:1: warning: no structured comments found
   fs/libfs.c:477: warning: Excess function parameter 'available' description in 'simple_write_end'
   fs/posix_acl.c:646: warning: Function parameter or member 'inode' not described in 'posix_acl_update_mode'
   fs/posix_acl.c:646: warning: Function parameter or member 'mode_p' not described in 'posix_acl_update_mode'
   fs/posix_acl.c:646: warning: Function parameter or member 'acl' not described in 'posix_acl_update_mode'
   drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c:183: warning: Function parameter or member 'blockable' not described in 'amdgpu_mn_read_lock'
   drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c:254: warning: Function parameter or member 'blockable' not described in 'amdgpu_mn_invalidate_range_start_gfx'
   drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c:302: warning: Function parameter or member 'blockable' not described in 'amdgpu_mn_invalidate_range_start_hsa'
   drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c:3011: warning: Excess function parameter 'dev' description in 'amdgpu_vm_get_task_info'
   drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c:3012: warning: Function parameter or member 'adev' not described in 'amdgpu_vm_get_task_info'
   drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c:3012: warning: Excess function parameter 'dev' description in 'amdgpu_vm_get_task_info'
   include/drm/drm_drv.h:610: warning: Function parameter or member 'gem_prime_pin' not described in 'drm_driver'
   include/drm/drm_drv.h:610: warning: Function parameter or member 'gem_prime_unpin' not described in 'drm_driver'
   include/drm/drm_drv.h:610: warning: Function parameter or member 'gem_prime_res_obj' not described in 'drm_driver'
   include/drm/drm_drv.h:610: warning: Function parameter or member 'gem_prime_get_sg_table' not described in 'drm_driver'
   include/drm/drm_drv.h:610: warning: Function parameter or member 'gem_prime_import_sg_table' not described in 'drm_driver'
   include/drm/drm_drv.h:610: warning: Function parameter or member 'gem_prime_vmap' not described in 'drm_driver'
   include/drm/drm_drv.h:610: warning: Function parameter or member 'gem_prime_vunmap' not described in 'drm_driver'
   include/drm/drm_drv.h:610: warning: Function parameter or member 'gem_prime_mmap' not described in 'drm_driver'
   include/drm/drm_panel.h:98: warning: Function parameter or member 'link' not described in 'drm_panel'
   drivers/gpu/drm/i915/i915_vma.h:49: warning: cannot understand function prototype: 'struct i915_vma '
   drivers/gpu/drm/i915/i915_vma.h:1: warning: no structured comments found
   drivers/gpu/drm/i915/intel_guc_fwif.h:553: warning: cannot understand function prototype: 'struct guc_log_buffer_state '
   drivers/gpu/drm/i915/i915_trace.h:1: warning: no structured comments found
   include/linux/skbuff.h:860: warning: Function parameter or member 'dev_scratch' not described in 'sk_buff'
   include/linux/skbuff.h:860: warning: Function parameter or member 'list' not described in 'sk_buff'
   include/linux/skbuff.h:860: warning: Function parameter or member 'ip_defrag_offset' not described in 'sk_buff'
   include/linux/skbuff.h:860: warning: Function parameter or member 'skb_mstamp' not described in 'sk_buff'
   include/linux/skbuff.h:860: warning: Function parameter or member '__cloned_offset' not described in 'sk_buff'
   include/linux/skbuff.h:860: warning: Function parameter or member 'head_frag' not described in 'sk_buff'
   include/linux/skbuff.h:860: warning: Function parameter or member '__pkt_type_offset' not described in 'sk_buff'
   include/linux/skbuff.h:860: warning: Function parameter or member 'encapsulation' not described in 'sk_buff'
   include/linux/skbuff.h:860: warning: Function parameter or member 'encap_hdr_csum' not described in 'sk_buff'
   include/linux/skbuff.h:860: warning: Function parameter or member 'csum_valid' not described in 'sk_buff'
   include/linux/skbuff.h:860: warning: Function parameter or member 'csum_complete_sw' not described in 'sk_buff'
   include/linux/skbuff.h:860: warning: Function parameter or member 'csum_level' not described in 'sk_buff'
   include/linux/skbuff.h:860: warning: Function parameter or member 'inner_protocol_type' not described in 'sk_buff'
   include/linux/skbuff.h:860: warning: Function parameter or member 'remcsum_offload' not described in 'sk_buff'
   include/linux/skbuff.h:860: warning: Function parameter or member 'offload_fwd_mark' not described in 'sk_buff'
   include/linux/skbuff.h:860: warning: Function parameter or member 'offload_mr_fwd_mark' not described in 'sk_buff'
   include/linux/skbuff.h:860: warning: Function parameter or member 'sender_cpu' not described in 'sk_buff'
   include/linux/skbuff.h:860: warning: Function parameter or member 'reserved_tailroom' not described in 'sk_buff'
   include/linux/skbuff.h:860: warning: Function parameter or member 'inner_ipproto' not described in 'sk_buff'
   include/net/sock.h:238: warning: Function parameter or member 'skc_addrpair' not described in 'sock_common'
   include/net/sock.h:238: warning: Function parameter or member 'skc_portpair' not described in 'sock_common'
   include/net/sock.h:238: warning: Function parameter or member 'skc_ipv6only' not described in 'sock_common'
   include/net/sock.h:238: warning: Function parameter or member 'skc_net_refcnt' not described in 'sock_common'
   include/net/sock.h:238: warning: Function parameter or member 'skc_v6_daddr' not described in 'sock_common'
   include/net/sock.h:238: warning: Function parameter or member 'skc_v6_rcv_saddr' not described in 'sock_common'
   include/net/sock.h:238: warning: Function parameter or member 'skc_cookie' not described in 'sock_common'
   include/net/sock.h:238: warning: Function parameter or member 'skc_listener' not described in 'sock_common'
   include/net/sock.h:238: warning: Function parameter or member 'skc_tw_dr' not described in 'sock_common'
   include/net/sock.h:238: warning: Function parameter or member 'skc_rcv_wnd' not described in 'sock_common'
   include/net/sock.h:238: warning: Function parameter or member 'skc_tw_rcv_nxt' not described in 'sock_common'
   include/net/sock.h:509: warning: Function parameter or member 'sk_backlog.rmem_alloc' not described in 'sock'
   include/net/sock.h:509: warning: Function parameter or member 'sk_backlog.len' not described in 'sock'
   include/net/sock.h:509: warning: Function parameter or member 'sk_backlog.head' not described in 'sock'
   include/net/sock.h:509: warning: Function parameter or member 'sk_backlog.tail' not described in 'sock'
   include/net/sock.h:509: warning: Function parameter or member 'sk_wq_raw' not described in 'sock'
   include/net/sock.h:509: warning: Function parameter or member 'tcp_rtx_queue' not described in 'sock'
   include/net/sock.h:509: warning: Function parameter or member 'sk_route_forced_caps' not described in 'sock'
   include/net/sock.h:509: warning: Function parameter or member 'sk_txtime_report_errors' not described in 'sock'
   include/net/sock.h:509: warning: Function parameter or member 'sk_validate_xmit_skb' not described in 'sock'
   include/linux/netdevice.h:2018: warning: Function parameter or member 'adj_list.upper' not described in 'net_device'
   include/linux/netdevice.h:2018: warning: Function parameter or member 'adj_list.lower' not described in 'net_device'
   include/linux/netdevice.h:2018: warning: Function parameter or member 'gso_partial_features' not described in 'net_device'
   include/linux/netdevice.h:2018: warning: Function parameter or member 'switchdev_ops' not described in 'net_device'

# https://github.com/0day-ci/linux/commit/eed1edfa16cb1ed0b7530c47d080859c9a2036ec
git remote add linux-review https://github.com/0day-ci/linux
git remote update linux-review
git checkout eed1edfa16cb1ed0b7530c47d080859c9a2036ec
vim +1848 drivers/video/fbdev/core/fbmem.c

712f3147 drivers/video/fbmem.c            Linus Torvalds  2011-05-13  1833  
712f3147 drivers/video/fbmem.c            Linus Torvalds  2011-05-13  1834  /**
eed1edfa drivers/video/fbdev/core/fbmem.c Micha? Miros?aw 2018-09-01  1835   * remove_conflicting_pci_framebuffers - remove firmware-configured framebuffers for PCI devices
eed1edfa drivers/video/fbdev/core/fbmem.c Micha? Miros?aw 2018-09-01  1836   * @pdev: PCI device
eed1edfa drivers/video/fbdev/core/fbmem.c Micha? Miros?aw 2018-09-01  1837   * @resource_id: index of PCI BAR configuring framebuffer memory
eed1edfa drivers/video/fbdev/core/fbmem.c Micha? Miros?aw 2018-09-01  1838   * @name: requesting driver name
eed1edfa drivers/video/fbdev/core/fbmem.c Micha? Miros?aw 2018-09-01  1839   *
eed1edfa drivers/video/fbdev/core/fbmem.c Micha? Miros?aw 2018-09-01  1840   * This function removes framebuffer devices (eg. initialized by firmware)
eed1edfa drivers/video/fbdev/core/fbmem.c Micha? Miros?aw 2018-09-01  1841   * using memory range configured for @pdev's BAR @resource_id.
eed1edfa drivers/video/fbdev/core/fbmem.c Micha? Miros?aw 2018-09-01  1842   *
eed1edfa drivers/video/fbdev/core/fbmem.c Micha? Miros?aw 2018-09-01  1843   * The function assumes that PCI device with shadowed ROM drives a primary
eed1edfa drivers/video/fbdev/core/fbmem.c Micha? Miros?aw 2018-09-01  1844   * display and so kicks out vga16fb.
eed1edfa drivers/video/fbdev/core/fbmem.c Micha? Miros?aw 2018-09-01  1845   */
eed1edfa drivers/video/fbdev/core/fbmem.c Micha? Miros?aw 2018-09-01  1846  int remove_conflicting_pci_framebuffers(struct pci_dev *pdev, int res_id, const char *name)
eed1edfa drivers/video/fbdev/core/fbmem.c Micha? Miros?aw 2018-09-01  1847  {
eed1edfa drivers/video/fbdev/core/fbmem.c Micha? Miros?aw 2018-09-01 @1848  	struct apertures_struct *ap;
eed1edfa drivers/video/fbdev/core/fbmem.c Micha? Miros?aw 2018-09-01  1849  	bool primary = false;
eed1edfa drivers/video/fbdev/core/fbmem.c Micha? Miros?aw 2018-09-01  1850  	int err;
eed1edfa drivers/video/fbdev/core/fbmem.c Micha? Miros?aw 2018-09-01  1851  
eed1edfa drivers/video/fbdev/core/fbmem.c Micha? Miros?aw 2018-09-01  1852  	ap = alloc_apertures(1);
eed1edfa drivers/video/fbdev/core/fbmem.c Micha? Miros?aw 2018-09-01  1853  	if (!ap)
eed1edfa drivers/video/fbdev/core/fbmem.c Micha? Miros?aw 2018-09-01  1854  		return -ENOMEM;
eed1edfa drivers/video/fbdev/core/fbmem.c Micha? Miros?aw 2018-09-01  1855  
eed1edfa drivers/video/fbdev/core/fbmem.c Micha? Miros?aw 2018-09-01  1856  	ap->ranges[0].base = pci_resource_start(pdev, res_id);
eed1edfa drivers/video/fbdev/core/fbmem.c Micha? Miros?aw 2018-09-01  1857  	ap->ranges[0].size = pci_resource_len(pdev, res_id);
eed1edfa drivers/video/fbdev/core/fbmem.c Micha? Miros?aw 2018-09-01  1858  #ifdef CONFIG_X86
eed1edfa drivers/video/fbdev/core/fbmem.c Micha? Miros?aw 2018-09-01  1859  	primary = pdev->resource[PCI_ROM_RESOURCE].flags &
eed1edfa drivers/video/fbdev/core/fbmem.c Micha? Miros?aw 2018-09-01  1860  					IORESOURCE_ROM_SHADOW;
eed1edfa drivers/video/fbdev/core/fbmem.c Micha? Miros?aw 2018-09-01  1861  #endif
eed1edfa drivers/video/fbdev/core/fbmem.c Micha? Miros?aw 2018-09-01  1862  	err = remove_conflicting_framebuffers(ap, name, primary);
eed1edfa drivers/video/fbdev/core/fbmem.c Micha? Miros?aw 2018-09-01  1863  	kfree(ap);
eed1edfa drivers/video/fbdev/core/fbmem.c Micha? Miros?aw 2018-09-01  1864  	return err;
eed1edfa drivers/video/fbdev/core/fbmem.c Micha? Miros?aw 2018-09-01  1865  }
eed1edfa drivers/video/fbdev/core/fbmem.c Micha? Miros?aw 2018-09-01  1866  EXPORT_SYMBOL(remove_conflicting_pci_framebuffers);
eed1edfa drivers/video/fbdev/core/fbmem.c Micha? Miros?aw 2018-09-01  1867  

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation
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Re: [PATCH v3 03/13] fbdev: add kerneldoc do remove_conflicting_framebuffers()

[Paul Menzel]

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Dear Michał,


Thank you for documenting the function. Do you mean *to* instead of *do*
in the commit message summary?


On 09/01/18 16:08, Michał Mirosław wrote:
> Document remove_conflicting_framebuffers() behaviour.
> 
> Signed-off-by: Michał Mirosław <mirq-linux-CoA6ZxLDdyEEUmgCuDUIdw@public.gmane.org>
> ---
>  drivers/video/fbdev/core/fbmem.c | 10 ++++++++++
>  1 file changed, 10 insertions(+)
> 
> diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c
> index 0df148eb4699..2de93b5014e3 100644
> --- a/drivers/video/fbdev/core/fbmem.c
> +++ b/drivers/video/fbdev/core/fbmem.c
> @@ -1775,6 +1775,16 @@ int unlink_framebuffer(struct fb_info *fb_info)
>  }
>  EXPORT_SYMBOL(unlink_framebuffer);
>  
> +/**
> + * remove_conflicting_framebuffers - remove firmware-configured framebuffers
> + * @a: memory range, users of which are to be removed
> + * @name: requesting driver name
> + * @primary: also kick vga16fb if present
> + *
> + * This function removes framebuffer devices (initialized by firmware/bootloader)
> + * which use memory range described by @a. If @a is NULL all such devices are
> + * removed.
> + */
>  int remove_conflicting_framebuffers(struct apertures_struct *a,
>  				    const char *name, bool primary)
>  {

Acked-by: Paul Menzel <pmenzel-KUpvgZVWgV9o1qOY/usvUg@public.gmane.org>


Kind regards,

Paul


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_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx

Re: [PATCH v3 03/13] fbdev: add kerneldoc do remove_conflicting_framebuffers()

[Paul Menzel]

[-- Attachment #1: Type: text/plain, Size: 1358 bytes --]

Dear Michał,


Thank you for documenting the function. Do you mean *to* instead of *do*
in the commit message summary?


On 09/01/18 16:08, Michał Mirosław wrote:
> Document remove_conflicting_framebuffers() behaviour.
> 
> Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
> ---
>  drivers/video/fbdev/core/fbmem.c | 10 ++++++++++
>  1 file changed, 10 insertions(+)
> 
> diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c
> index 0df148eb4699..2de93b5014e3 100644
> --- a/drivers/video/fbdev/core/fbmem.c
> +++ b/drivers/video/fbdev/core/fbmem.c
> @@ -1775,6 +1775,16 @@ int unlink_framebuffer(struct fb_info *fb_info)
>  }
>  EXPORT_SYMBOL(unlink_framebuffer);
>  
> +/**
> + * remove_conflicting_framebuffers - remove firmware-configured framebuffers
> + * @a: memory range, users of which are to be removed
> + * @name: requesting driver name
> + * @primary: also kick vga16fb if present
> + *
> + * This function removes framebuffer devices (initialized by firmware/bootloader)
> + * which use memory range described by @a. If @a is NULL all such devices are
> + * removed.
> + */
>  int remove_conflicting_framebuffers(struct apertures_struct *a,
>  				    const char *name, bool primary)
>  {

Acked-by: Paul Menzel <pmenzel@molgen.mpg.de>


Kind regards,

Paul


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[PATCH v3 03/13] fbdev: add kerneldoc do remove_conflicting_framebuffers()

[Paul Menzel]

Dear Micha?,


Thank you for documenting the function. Do you mean *to* instead of *do*
in the commit message summary?


On 09/01/18 16:08, Micha? Miros?aw wrote:
> Document remove_conflicting_framebuffers() behaviour.
> 
> Signed-off-by: Micha? Miros?aw <mirq-linux@rere.qmqm.pl>
> ---
>  drivers/video/fbdev/core/fbmem.c | 10 ++++++++++
>  1 file changed, 10 insertions(+)
> 
> diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c
> index 0df148eb4699..2de93b5014e3 100644
> --- a/drivers/video/fbdev/core/fbmem.c
> +++ b/drivers/video/fbdev/core/fbmem.c
> @@ -1775,6 +1775,16 @@ int unlink_framebuffer(struct fb_info *fb_info)
>  }
>  EXPORT_SYMBOL(unlink_framebuffer);
>  
> +/**
> + * remove_conflicting_framebuffers - remove firmware-configured framebuffers
> + * @a: memory range, users of which are to be removed
> + * @name: requesting driver name
> + * @primary: also kick vga16fb if present
> + *
> + * This function removes framebuffer devices (initialized by firmware/bootloader)
> + * which use memory range described by @a. If @a is NULL all such devices are
> + * removed.
> + */
>  int remove_conflicting_framebuffers(struct apertures_struct *a,
>  				    const char *name, bool primary)
>  {

Acked-by: Paul Menzel <pmenzel@molgen.mpg.de>


Kind regards,

Paul

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