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drm/i915: Actually emit the await_start

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Fix the inverted test to emit the wait on the end of the previous
request if we /haven't/ already.

Fixes: 6a79d84840 ("drm/i915: Lock signaler timeline while navigating")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Cc: <stable@vger.kernel.org> # v5.5+
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200305104210.2619967-1-chris@chris-wilson.co.uk
(cherry picked from commit 07e9c59d63)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
This commit is contained in:
Chris Wilson 2020-03-05 10:42:10 +00:00 committed by Jani Nikula
parent b74f241d71
commit c67b35d970
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/i915/i915_request.c
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@ -821,7 +821,7 @@ i915_request_await_start(struct i915_request *rq, struct i915_request *signal)
return 0;
err = 0;
if (intel_timeline_sync_is_later(i915_request_timeline(rq), fence))
if (!intel_timeline_sync_is_later(i915_request_timeline(rq), fence))
err = i915_sw_fence_await_dma_fence(&rq->submit,
fence, 0,
I915_FENCE_GFP);