drm/virtio: implement prime export

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Just run drm_prime_pages_to_sg() on the ttm pages list to get an
sg_table for export.  The pages list is created at object initialization
time, so there should be no need to handle an unpopulated page list.
Add a sanity check nevertheless.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Noralf Trønnes <noralf@tronnes.org>
Link: http://patchwork.freedesktop.org/patch/msgid/20190227144441.6755-4-kraxel@redhat.com

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Gerd Hoffmann 2019-02-27 15:44:41 +01:00

parent 873f51d434

commit 98f41dc3b3

3 changed files with 15 additions and 0 deletions

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2

drivers/gpu/drm/virtio/virtgpu_drv.c

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1

drivers/gpu/drm/virtio/virtgpu_drv.h

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12

drivers/gpu/drm/virtio/virtgpu_prime.c

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