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| author | Rob Clark <robdclark@chromium.org> | 2025-04-01 08:57:58 -0700 |
|---|---|---|
| committer | Christian König <christian.koenig@amd.com> | 2025-04-01 18:30:25 +0200 |
| commit | c2d3a730069545f2cc2d644bfa8b1482e6388826 (patch) | |
| tree | f2eee1207e54b23f542a098e7e655f81f42fae28 /include/uapi/drm | |
| parent | drm/panel/panel-simple: Use the new allocation in place of devm_kzalloc() (diff) | |
| download | linux-c2d3a730069545f2cc2d644bfa8b1482e6388826.tar.gz linux-c2d3a730069545f2cc2d644bfa8b1482e6388826.zip | |
drm/syncobj: Extend EXPORT_SYNC_FILE for timeline syncobjs
Add support for exporting a dma_fence fd for a specific point on a
timeline. This is needed for vtest/vpipe[1][2] to implement timeline
syncobj support, as it needs a way to turn a point on a timeline back
into a dma_fence fd. It also closes an odd omission from the syncobj
UAPI.
[1] https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/33433
[2] https://gitlab.freedesktop.org/virgl/virglrenderer/-/merge_requests/805
v2: Add DRM_SYNCOBJ_HANDLE_TO_FD_FLAGS_TIMELINE
v3: Add unstaged uabi header hunk
v4: Also handle IMPORT_SYNC_FILE case
v5: Address comments from Dmitry
v6: checkpatch.pl nits
Signed-off-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250401155758.48855-1-robdclark@gmail.com
Signed-off-by: Christian König <christian.koenig@amd.com>
Diffstat (limited to 'include/uapi/drm')
| -rw-r--r-- | include/uapi/drm/drm.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/uapi/drm/drm.h b/include/uapi/drm/drm.h index 7fba37b94401..e63a71d3c607 100644 --- a/include/uapi/drm/drm.h +++ b/include/uapi/drm/drm.h @@ -905,13 +905,17 @@ struct drm_syncobj_destroy { }; #define DRM_SYNCOBJ_FD_TO_HANDLE_FLAGS_IMPORT_SYNC_FILE (1 << 0) +#define DRM_SYNCOBJ_FD_TO_HANDLE_FLAGS_TIMELINE (1 << 1) #define DRM_SYNCOBJ_HANDLE_TO_FD_FLAGS_EXPORT_SYNC_FILE (1 << 0) +#define DRM_SYNCOBJ_HANDLE_TO_FD_FLAGS_TIMELINE (1 << 1) struct drm_syncobj_handle { __u32 handle; __u32 flags; __s32 fd; __u32 pad; + + __u64 point; }; struct drm_syncobj_transfer { |