diff options
| author | Christian König <[email protected]> | 2023-09-08 08:27:23 +0000 |
|---|---|---|
| committer | Luben Tuikov <[email protected]> | 2023-11-01 02:24:10 +0000 |
| commit | 0da611a8702101814257a7c03f6caf0574c83b98 (patch) | |
| tree | 91cd74ac65b2918f99839df290d988f8c9126d09 /drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c | |
| parent | accel/ivpu: Rename VPU to NPU in product strings (diff) | |
| download | kernel-0da611a8702101814257a7c03f6caf0574c83b98.tar.gz kernel-0da611a8702101814257a7c03f6caf0574c83b98.zip | |
dma-buf: add dma_fence_timestamp helper
When a fence signals there is a very small race window where the timestamp
isn't updated yet. sync_file solves this by busy waiting for the
timestamp to appear, but on other ocassions didn't handled this
correctly.
Provide a dma_fence_timestamp() helper function for this and use it in
all appropriate cases.
Another alternative would be to grab the spinlock when that happens.
v2 by teddy: add a wait parameter to wait for the timestamp to show up, in case
the accurate timestamp is needed and/or the timestamp is not based on
ktime (e.g. hw timestamp)
v3 chk: drop the parameter again for unified handling
Signed-off-by: Yunxiang Li <[email protected]>
Signed-off-by: Christian König <[email protected]>
Fixes: 1774baa64f93 ("drm/scheduler: Change scheduled fence track v2")
Reviewed-by: Alex Deucher <[email protected]>
CC: [email protected]
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c')
0 files changed, 0 insertions, 0 deletions