[Intel-gfx] [PATCH 2/5] drm/i915/selftests: Flush the active callbacks

[Chris Wilson]

Quoting Chris Wilson (2019-11-22 13:09:00)
> We complete the sync before the interrupt handler's irq work has
> finished executing the callback to mark the barrier as completed.
> So when we look at whether the engine is parked or not, we see the state
> before the request has finished processing and find it still active.

Note to self, it does not belong inside i915_request_retire() as we
take a reference to the request in the breadcrumb handler. I have asked
myself that more than once and I keep forgetting the answer.
-Chris