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drm/msm: fix ->last_fence() after recover 

It is no longer true that we discard all in-flight submits on recover
(these days we only discard the first one that hung).  After the first
re-submitted batch completes it would overwrite the fence with a correct
value, but there would be a window of time which showed all re-submitted
batches as already complete.

Signed-off-by: Rob Clark <robdclark@gmail.com>
This commit is contained in:
Rob Clark 2016-03-17 10:18:38 -04:00
parent b6295f9a38
commit 2755734390
1 changed files with 2 additions and 2 deletions
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4
drivers/gpu/drm/msm/adreno/adreno_gpu.c
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@ -120,8 +120,8 @@ void adreno_recover(struct msm_gpu *gpu)
/* reset ringbuffer: */
gpu->rb->cur = gpu->rb->start;
/* reset completed fence seqno, just discard anything pending: */
adreno_gpu->memptrs->fence = gpu->fctx->last_fence;
/* reset completed fence seqno: */
adreno_gpu->memptrs->fence = gpu->fctx->completed_fence;
adreno_gpu->memptrs->rptr = 0;
adreno_gpu->memptrs->wptr = 0;