[PATCH 2/3] drm/tegra: Add sync file support to submit interface
From: Thierry Reding <hidden>
Date: 2018-01-11 22:22:48
Also in:
dri-devel, nouveau
Subsystem:
drm drivers, drm drivers and misc gpu patches, drm drivers for nvidia tegra, the rest · Maintainers:
David Airlie, Simona Vetter, Maarten Lankhorst, Maxime Ripard, Thomas Zimmermann, Thierry Reding, Mikko Perttunen, Linus Torvalds
Possibly related (same subject, not in this thread)
- 2017-03-09 · [PATCH 2/3] drm/tegra: Add sync file support to submit interface · Mikko Perttunen <mperttunen@nvidia.com>
From: Mikko Perttunen <redacted> Adds ability to pass sync file based prefences and get back sync file based postfences during job submission. Both fence fd's are passed in the `fence` field. A new `flags` field is used to specify if the prefence should be waited or a postfence created. Signed-off-by: Mikko Perttunen <redacted> Signed-off-by: Thierry Reding <redacted> --- include/uapi/drm/tegra_drm.h | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-)
diff --git a/include/uapi/drm/tegra_drm.h b/include/uapi/drm/tegra_drm.h
index d954f8c33321..03492d6670a5 100644
--- a/include/uapi/drm/tegra_drm.h
+++ b/include/uapi/drm/tegra_drm.h@@ -117,6 +117,11 @@ struct drm_tegra_waitchk { __u32 thresh; }; +#define DRM_TEGRA_SUBMIT_WAIT_FENCE_FD (1 << 0) +#define DRM_TEGRA_SUBMIT_CREATE_FENCE_FD (1 << 1) +#define DRM_TEGRA_SUBMIT_FLAGS (DRM_TEGRA_SUBMIT_WAIT_FENCE_FD | \ + DRM_TEGRA_SUBMIT_CREATE_FENCE_FD) + struct drm_tegra_submit { __u64 context; __u32 num_syncpts;
@@ -129,9 +134,10 @@ struct drm_tegra_submit { __u64 cmdbufs; __u64 relocs; __u64 waitchks; - __u32 fence; /* Return value */ + __u32 fence; + __u32 flags; - __u32 reserved[5]; /* future expansion */ + __u32 reserved[4]; /* future expansion */ }; #define DRM_TEGRA_GEM_TILING_MODE_PITCH 0
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2.15.1