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drm/i915: Propagate errors on awaiting already signaled fences

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If we see an already signaled fence that we want to await on, we skip
adding to the i915_sw_fence. However, we should pay attention to whether
there was an error on that fence and if so propagate it for our future
request.

Signed-off-by: Chris Wilson <[email protected]>
Reviewed-by: Matthew Auld <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
This commit is contained in:
Chris Wilson
2019-12-06 19:09:40 +00:00
parent 5e6a94713b
commit 9e31c1fe45
1 changed files with 6 additions and 2 deletions
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drivers/gpu/drm/i915/i915_request.c
+6 -2
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@@ -958,8 +958,10 @@ i915_request_await_dma_fence(struct i915_request *rq, struct dma_fence *fence)
do {
fence = *child++;
if (test_bit(DMA_FENCE_FLAG_SIGNALED_BIT, &fence->flags))
if (test_bit(DMA_FENCE_FLAG_SIGNALED_BIT, &fence->flags)) {
i915_sw_fence_set_error_once(&rq->submit, fence->error);
continue;
}
/*
* Requests on the same timeline are explicitly ordered, along
@@ -1015,8 +1017,10 @@ i915_request_await_execution(struct i915_request *rq,
do {
fence = *child++;
if (test_bit(DMA_FENCE_FLAG_SIGNALED_BIT, &fence->flags))
if (test_bit(DMA_FENCE_FLAG_SIGNALED_BIT, &fence->flags)) {
i915_sw_fence_set_error_once(&rq->submit, fence->error);
continue;
}
/*
* We don't squash repeated fence dependencies here as we