[Intel-gfx] [PATCH] drm/i915: Wake up the bottom-half if we steal their interrupt

[Chris Wilson]

On Tue, Jul 05, 2016 at 12:45:55PM +0100, Chris Wilson wrote:
> Following on from the scenario Tvrtko envision to explain a hard-to-hit
> race with multiple first waiters, we could also then race in the
> __i915_request_irq_complete() and the bottom-half may miss the vital
> irq-seqno barrier and so go to sleep not noticing their seqno is
> complete.
> 
> Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
> Cc: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
Fixes: 3d5564e91025 ("drm/i915: Only apply one barrier after...")
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre