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>		2024-02-23 08:55:10 +01:00
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heaps	dma-buf: cma_heap: Fix mutex locking section	2022-03-08 19:12:37 +01:00
Kconfig	dma-buf: DMABUF_SYSFS_STATS should depend on DMA_SHARED_BUFFER	2021-09-07 12:42:21 +05:30
Makefile	…
dma-buf-sysfs-stats.c	…
dma-buf-sysfs-stats.h	…
dma-buf.c	dma-buf/poll: Get a file reference for outstanding fence callbacks	2022-07-12 16:34:51 +02:00
dma-fence-array.c	dma_fence_array: Fix PENDING_ERROR leak in dma_fence_array_signaled()	2022-01-27 11:02:59 +01:00
dma-fence-chain.c	…
dma-fence-unwrap.c	dma-buf: add dma_fence_timestamp helper	2024-02-23 08:55:10 +01:00
dma-fence.c	…
dma-heap.c	dma-buf: fix racing conflict of dma_heap_add()	2022-12-02 17:41:06 +01:00
dma-resv.c	…
selftest.c	…
selftest.h	…
selftests.h	…
seqno-fence.c	…
st-dma-fence-chain.c	…
st-dma-fence.c	…
sw_sync.c	dma-buf/sw_sync: Avoid recursive lock during fence signal	2023-08-30 16:18:21 +02:00
sync_debug.c	…
sync_debug.h	…
sync_file.c	dma-buf: add dma_fence_timestamp helper	2024-02-23 08:55:10 +01:00
sync_trace.h	…
udmabuf.c	udmabuf: Set ubuf->sg = NULL if the creation of sg table fails	2022-10-26 12:35:39 +02:00