Re: [Intel-gfx] [PATCH 2/2] drm/i915: Postpone fake breadcrumb interrupt if a real interrupt is pending

2017-02-16 Thread Chris Wilson
On Thu, Feb 16, 2017 at 11:17:11AM +, Tvrtko Ursulin wrote: > > On 16/02/2017 10:47, Chris Wilson wrote: > >On Thu, Feb 16, 2017 at 10:38:08AM +, Tvrtko Ursulin wrote: > >> > >>On 16/02/2017 09:29, Chris Wilson wrote: > >>>If the timer expires for enabling the fake interrupt, check to see

Re: [Intel-gfx] [PATCH 2/2] drm/i915: Postpone fake breadcrumb interrupt if a real interrupt is pending

2017-02-16 Thread Tvrtko Ursulin
On 16/02/2017 10:47, Chris Wilson wrote: On Thu, Feb 16, 2017 at 10:38:08AM +, Tvrtko Ursulin wrote: On 16/02/2017 09:29, Chris Wilson wrote: If the timer expires for enabling the fake interrupt, check to see if there is a real interrupt queued before making the decision to start

Re: [Intel-gfx] [PATCH 2/2] drm/i915: Postpone fake breadcrumb interrupt if a real interrupt is pending

2017-02-16 Thread Chris Wilson
On Thu, Feb 16, 2017 at 10:38:08AM +, Tvrtko Ursulin wrote: > > On 16/02/2017 09:29, Chris Wilson wrote: > >If the timer expires for enabling the fake interrupt, check to see > >if there is a real interrupt queued before making the decision to start > >polling. This helps in situations where

Re: [Intel-gfx] [PATCH 2/2] drm/i915: Postpone fake breadcrumb interrupt if a real interrupt is pending

2017-02-16 Thread Tvrtko Ursulin
On 16/02/2017 09:29, Chris Wilson wrote: If the timer expires for enabling the fake interrupt, check to see if there is a real interrupt queued before making the decision to start polling. This helps in situations where we have a very slow irq-seqno barrier that may accrue more breadcrumb