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drm/virtio: Support sync objects

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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 <emil.velikov@collabora.com>
Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Tested-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com> # amdgpu nctx
Tested-by: Rob Clark <robdclark@gmail.com> # freedreno nctx
Reviewed-by: Rob Clark <robdclark@gmail.com>
Acked-by: Gurchetan Singh <gurchetansingh@chromium.org>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230416115237.798604-4-dmitry.osipenko@collabora.com
This commit is contained in:
Dmitry Osipenko
2023-03-24 02:07:55 +03:00
parent 744d35d343
commit 7cb8d1ab8c
3 changed files with 241 additions and 2 deletions
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16
include/uapi/drm/virtgpu_drm.h
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@@ -64,6 +64,16 @@ struct drm_virtgpu_map {
__u32 pad;
};
#define VIRTGPU_EXECBUF_SYNCOBJ_RESET 0x01
#define VIRTGPU_EXECBUF_SYNCOBJ_FLAGS ( \
VIRTGPU_EXECBUF_SYNCOBJ_RESET | \
0)
struct drm_virtgpu_execbuffer_syncobj {
__u32 handle;
__u32 flags;
__u64 point;
};
/* fence_fd is modified on success if VIRTGPU_EXECBUF_FENCE_FD_OUT flag is set. */
struct drm_virtgpu_execbuffer {
__u32 flags;
@@ -73,7 +83,11 @@ struct drm_virtgpu_execbuffer {
__u32 num_bo_handles;
__s32 fence_fd; /* in/out fence fd (see VIRTGPU_EXECBUF_FENCE_FD_IN/OUT) */
__u32 ring_idx; /* command ring index (see VIRTGPU_EXECBUF_RING_IDX) */
__u32 pad;
__u32 syncobj_stride; /* size of @drm_virtgpu_execbuffer_syncobj */
__u32 num_in_syncobjs;
__u32 num_out_syncobjs;
__u64 in_syncobjs;
__u64 out_syncobjs;
};
#define VIRTGPU_PARAM_3D_FEATURES 1 /* do we have 3D features in the hw */