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drm/virtio: Support virtgpu exported resources

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Add support for UUID-based resource sharing mechanism to virtgpu. This
implements the new virtgpu commands and hooks them up to dma-buf's
get_uuid callback.

Signed-off-by: David Stevens <stevensd@chromium.org>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20200818071343.3461203-4-stevensd@chromium.org
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
David Stevens
2020-08-18 16:13:43 +09:00
committed by Gerd Hoffmann
parent 592d9fba33
commit c84adb304c
5 changed files with 176 additions and 3 deletions
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3
drivers/gpu/drm/virtio/virtgpu_drv.c
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@@ -165,6 +165,7 @@ static unsigned int features[] = {
VIRTIO_GPU_F_VIRGL,
#endif
VIRTIO_GPU_F_EDID,
VIRTIO_GPU_F_RESOURCE_UUID,
};
static struct virtio_driver virtio_gpu_driver = {
.feature_table = features,
@@ -202,6 +203,8 @@ static struct drm_driver driver = {
.prime_handle_to_fd = drm_gem_prime_handle_to_fd,
.prime_fd_to_handle = drm_gem_prime_fd_to_handle,
.gem_prime_mmap = drm_gem_prime_mmap,
.gem_prime_export = virtgpu_gem_prime_export,
.gem_prime_import = virtgpu_gem_prime_import,
.gem_prime_import_sg_table = virtgpu_gem_prime_import_sg_table,
.gem_create_object = virtio_gpu_create_object,