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Christian König 4e82b9c11d dma-buf: add dma_fence_timestamp helper ... [ Upstream commit b83ce9cb4a ] 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 <Yunxiang.Li@amd.com> Signed-off-by: Christian König <christian.koenig@amd.com> Fixes: 1774baa64f ("drm/scheduler: Change scheduled fence track v2") Reviewed-by: Alex Deucher <alexander.deucher@amd.com> CC: stable@vger.kernel.org Link: https://patchwork.freedesktop.org/patch/msgid/20230929104725.2358-1-christian.koenig@amd.com Signed-off-by: Sasha Levin <sashal@kernel.org>		History 2024-02-23 08:55:10 +01:00
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gpu_scheduler_trace.h	drm/sched: add run job trace	2020-03-13 11:52:36 -04:00
Makefile	drm/scheduler: rename gpu_scheduler.c to sched_main.c	2018-08-27 11:10:44 -05:00
sched_entity.c	drm/sched: Avoid data corruptions	2021-05-19 23:50:28 -04:00
sched_fence.c	drm/scheduler: fix sched_fence.c kernel-doc warnings	2020-09-15 17:52:42 -04:00
sched_main.c	dma-buf: add dma_fence_timestamp helper	2024-02-23 08:55:10 +01:00