Re: [Intel-gfx] [PATCH 1/2] drm/i915: Move priority bumping for flips earlier

2016-11-29 Thread Tvrtko Ursulin
On 28/11/2016 14:36, Chris Wilson wrote: David found another issue with priority bumping from mmioflips, where we are accessing the requests concurrently to them being retired and freed. Whilst we are skipping the dependency if has been submitted, that is not sufficient to stop the dependency

[Intel-gfx] [PATCH 1/2] drm/i915: Move priority bumping for flips earlier

2016-11-28 Thread Chris Wilson
David found another issue with priority bumping from mmioflips, where we are accessing the requests concurrently to them being retired and freed. Whilst we are skipping the dependency if has been submitted, that is not sufficient to stop the dependency from disappearing if another thread retires