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Subject[PATCH v3 0/4] Support virtio cross-device resources
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This patchset implements the current proposal for virtio cross-device
resource sharing [1], with minor changes based on recent comments. It
is expected that this will be used to import virtio resources into the
virtio-video driver currently under discussion [2].

This patchset adds a new hook to dma-buf, for querying the dma-buf's
underlying virtio UUID. This hook is then plumbed through DRM PRIME
buffers, and finally implemented in virtgpu.

[1] https://markmail.org/thread/jsaoqy7phrqdcpqu
[2] https://markmail.org/thread/p5d3k566srtdtute

v2 -> v3 changes:
- Remove ifdefs.
- Simplify virtgpu_gem_prime_export as it can only be called once.
- Use virtio_gpu_vbuffer's objs field instead of abusing data_buf.

David Stevens (4):
dma-buf: add support for virtio exported objects
drm/prime: add support for virtio exported objects
virtio-gpu: add VIRTIO_GPU_F_RESOURCE_UUID feature
drm/virtio: Support virtgpu exported resources

drivers/dma-buf/dma-buf.c | 12 ++++++
drivers/gpu/drm/drm_prime.c | 23 +++++++++++
drivers/gpu/drm/virtio/virtgpu_drv.c | 3 ++
drivers/gpu/drm/virtio/virtgpu_drv.h | 18 +++++++++
drivers/gpu/drm/virtio/virtgpu_kms.c | 4 ++
drivers/gpu/drm/virtio/virtgpu_prime.c | 41 +++++++++++++++++--
drivers/gpu/drm/virtio/virtgpu_vq.c | 55 ++++++++++++++++++++++++++
include/drm/drm_drv.h | 10 +++++
include/linux/dma-buf.h | 18 +++++++++
include/uapi/linux/virtio_gpu.h | 19 +++++++++
10 files changed, 200 insertions(+), 3 deletions(-)

--
2.25.1.481.gfbce0eb801-goog

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