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dma-buf: keep the signaling time of merged fences v3

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Some Android CTS is testing if the signaling time keeps consistent
during merges.

v2: use the current time if the fence is still in the signaling path and
the timestamp not yet available.
v3: improve comment, fix one more case to use the correct timestamp

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Luben Tuikov <luben.tuikov@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230630120041.109216-1-christian.koenig@amd.com
This commit is contained in:
Christian König
2023-06-13 10:09:20 +02:00
parent 1c519980ac
commit f781f661e8
4 changed files with 27 additions and 8 deletions
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2
drivers/gpu/drm/drm_syncobj.c
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@@ -353,7 +353,7 @@ EXPORT_SYMBOL(drm_syncobj_replace_fence);
*/
static int drm_syncobj_assign_null_handle(struct drm_syncobj *syncobj)
{
struct dma_fence *fence = dma_fence_allocate_private_stub();
struct dma_fence *fence = dma_fence_allocate_private_stub(ktime_get());
if (IS_ERR(fence))
return PTR_ERR(fence);