drm/virtio: add virtio_gpu_alloc_fence()

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Refactor fence creation, add fences to relevant GPU
operations and add cursor helper functions.

This removes the potential for allocation failures from the
cmd_submit and atomic_commit paths.
Now a fence will be allocated first and only after that
will we proceed with the rest of the execution.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.com>
Signed-off-by: Robert Foss <robert.foss@collabora.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20181112165157.32765-2-robert.foss@collabora.com
Suggested-by: Rob Herring <robh@kernel.org>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>

...

This commit is contained in:

Robert Foss 2018-11-12 17:51:54 +01:00 • committed by Gerd Hoffmann

parent 2ae7f165c0

commit 9fdd90c0f4

5 changed files with 96 additions and 15 deletions

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4

drivers/gpu/drm/virtio/virtgpu_drv.h

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29

drivers/gpu/drm/virtio/virtgpu_fence.c

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30

drivers/gpu/drm/virtio/virtgpu_ioctl.c

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46

drivers/gpu/drm/virtio/virtgpu_plane.c

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2

drivers/gpu/drm/virtio/virtgpu_vq.c

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