Commit 27557343 authored Mar 17, 2016 by Rob Clark

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>

parent b6295f9a

drivers/gpu/drm/msm/adreno/adreno_gpu.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -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;