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(parent: 474b9af) | patch
drm/msm: Let fences read directly from memptrs
authorRob Clark <robdclark@chromium.org>
Mon, 26 Jul 2021 14:43:57 +0000 (07:43 -0700)
committerRob Clark <robdclark@chromium.org>
Wed, 28 Jul 2021 00:53:51 +0000 (17:53 -0700)
commit171ac8aba24bfc1b180a0afc8dc55a921ba55809
treeeb7898ecefdf670af9c5c020c503dee5104c2b61tree | snapshot
parent474b9af4e9fc6be058d6522dbd75b30f5cbbb04ccommit | diff
drm/msm: Let fences read directly from memptrs

Let dma_fence::signaled, etc, read directly from the address that the hw
is writing with updated completed fence seqno, so we can potentially
notice that the fence is signaled sooner.

Plus add some docs.

Signed-off-by: Rob Clark <robdclark@chromium.org>
Link: https://lore.kernel.org/r/20210726144359.2179302-2-robdclark@gmail.com
Signed-off-by: Rob Clark <robdclark@chromium.org>
drivers/gpu/drm/msm/msm_fence.c diff | blob | history
drivers/gpu/drm/msm/msm_fence.h diff | blob | history
drivers/gpu/drm/msm/msm_ringbuffer.c diff | blob | history
Linux Kernel Source Tree.