linux.git/drivers/gpu/drm/virtio/virtgpu_drv.c, branch v6.7

drm/virtio: Use pci_is_vga() to identify VGA devices

2023-10-06T22:19:01+00:00

Use pci_is_vga() to identify VGA devices instead of open-coding the class
test.

This means virtio_gpu_pci_quirk() will apply to old
PCI_CLASS_NOT_DEFINED_VGA (0x0001) devices as well as the
PCI_CLASS_DISPLAY_VGA (0x0300) devices it did previously.

Link: https://lore.kernel.org/r/20230830111532.444535-5-sui.jingfeng@linux.dev
Signed-off-by: Sui Jingfeng 
[bhelgaas: commit log]
Signed-off-by: Bjorn Helgaas 
Cc: David Airlie 
Cc: Gerd Hoffmann 
Cc: Gurchetan Singh 
Cc: Chia-I Wu 
Cc: Daniel Vetter

drm/virtio: Support sync objects

2023-07-31T22:41:04+00:00

Add sync object DRM UAPI support to VirtIO-GPU driver. Sync objects
support is needed by native context VirtIO-GPU Mesa drivers, it also will
be used by Venus and Virgl contexts.

Reviewed-by; Emil Velikov 
Signed-off-by: Dmitry Osipenko 
Tested-by: Pierre-Eric Pelloux-Prayer  # amdgpu nctx
Tested-by: Rob Clark  # freedreno nctx
Reviewed-by: Rob Clark 
Acked-by: Gurchetan Singh 
Acked-by: Gerd Hoffmann 
Link: https://patchwork.freedesktop.org/patch/msgid/20230416115237.798604-4-dmitry.osipenko@collabora.com

drm: Clear fd/handle callbacks in struct drm_driver

2023-06-26T09:08:41+00:00

Clear all assignments of struct drm_driver's fd/handle callbacks to
drm_gem_prime_fd_to_handle() and drm_gem_prime_handle_to_fd(). These
functions are called by default. Add a TODO item to convert vmwgfx
to the defaults as well.

v2:
	* remove TODO item (Zack)
	* also update amdgpu's amdgpu_partition_driver

Signed-off-by: Thomas Zimmermann 
Reviewed-by: Simon Ser 
Acked-by: Alex Deucher 
Acked-by: Jeffrey Hugo  # qaic
Link: https://patchwork.freedesktop.org/patch/msgid/20230620080252.16368-3-tzimmermann@suse.de

drm: Remove struct drm_driver.gem_prime_mmap

2023-06-19T11:56:40+00:00

All drivers initialize this field with drm_gem_prime_mmap(). Call
the function directly and remove the field. Simplifies the code and
resolves a long-standing TODO item.

Signed-off-by: Thomas Zimmermann 
Reviewed-by: Alex Deucher 
Link: https://patchwork.freedesktop.org/patch/msgid/20230613150441.17720-3-tzimmermann@suse.de

drm/virtio: Add option to disable KMS support

2023-03-03T20:29:54+00:00

Add a build option to disable modesetting support.  This is useful in
cases where the guest only needs to use the GPU in a headless mode, or
(such as in the CrOS usage) window surfaces are proxied to a host
compositor.

As the modesetting ioctls are a big surface area for potential security
bugs to be found (it's happened in the past, we should assume it will
again in the future), it makes sense to have a build option to disable
those ioctls in cases where they serve no legitimate purpose.

v2: Use more if (IS_ENABLED(...))
v3: Also permit the host to advertise no scanouts
v4: Spiff out commit msg
v5: Make num_scanouts==0 and DRM_VIRTIO_GPU_KMS=n behave the same
v6: Drop conditionally building virtgpu_display.c and early-out of
    it's init/fini fxns instead

Signed-off-by: Rob Clark 
Reviewed-by: Dmitry Osipenko 
Reviewed-by: Javier Martinez Canillas 
Reviewed-by: Gerd Hoffmann 
Signed-off-by: Dmitry Osipenko 
Link: https://patchwork.freedesktop.org/patch/msgid/20230302233506.3146290-1-robdclark@gmail.com

drm/fb-helper: Move generic fbdev emulation into separate source file

2022-11-05T16:12:04+00:00

Move the generic fbdev implementation into its own source and header
file. Adapt drivers. No functional changes, but some of the internal
helpers have been renamed to fit into the drm_fbdev_ naming scheme.

v3:
	* rename drm_fbdev.{c,h} to drm_fbdev_generic.{c,h}
	* rebase onto vmwgfx changes
	* rebase onto xlnx changes
	* fix include statements in amdgpu

Signed-off-by: Thomas Zimmermann 
Reviewed-by: Javier Martinez Canillas 
Link: https://patchwork.freedesktop.org/patch/msgid/20221103151446.2638-22-tzimmermann@suse.de

drm/virtio: Use dev_is_pci()

2022-07-19T12:40:58+00:00

Use common dev_is_pci() helper to replace the strcmp("pci") used by driver.

Suggested-by: Robin Murphy 
Signed-off-by: Dmitry Osipenko 
Link: http://patchwork.freedesktop.org/patch/msgid/20220630200726.1884320-9-dmitry.osipenko@collabora.com
Signed-off-by: Gerd Hoffmann

drm/virtio: Improve DMA API usage for shmem BOs

2022-07-19T12:40:58+00:00

DRM API requires the DRM's driver to be backed with the device that can
be used for generic DMA operations. The VirtIO-GPU device can't perform
DMA operations if it uses PCI transport because PCI device driver creates
a virtual VirtIO-GPU device that isn't associated with the PCI. Use PCI's
GPU device for the DRM's device instead of the VirtIO-GPU device and drop
DMA-related hacks from the VirtIO-GPU driver.

Signed-off-by: Dmitry Osipenko 
Link: http://patchwork.freedesktop.org/patch/msgid/20220630200726.1884320-8-dmitry.osipenko@collabora.com
Signed-off-by: Gerd Hoffmann

Merge v5.16-rc5 into drm-next

2021-12-14T09:24:28+00:00

Thomas Zimmermann requested a fixes backmerge, specifically also for
96c5f82ef0a1 ("drm/vc4: fix error code in vc4_create_object()")

Just a bunch of adjacent changes conflicts, even the big pile of them
in vc4.

Signed-off-by: Daniel Vetter

drm/virtio: use drm_poll(..) instead of virtio_gpu_poll(..)

2021-11-29T10:46:32+00:00

With the use of dummy events, we can drop virtgpu specific
behavior.

Fixes: cd7f5ca33585 ("drm/virtio: implement context init: add virtio_gpu_fence_event")
Reported-by: Daniel Vetter 
Signed-off-by: Gurchetan Singh 
Reviewed-by: Daniel Vetter 
Link: http://patchwork.freedesktop.org/patch/msgid/20211122232210.602-3-gurchetansingh@google.com
Signed-off-by: Gerd Hoffmann