From: Mikko Perttunen <mperttu...@nvidia.com>
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 <mperttu...@nvidia.com>
Signed-off-by: Thierry Reding <tred...@nvidia.com>
---
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
--
2.15.1
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