[Intel-gfx] [PATCH v4 2/3] drm/i915: Make sure engines are idle during GPU idling in LR mode

We assume that the GPU is idle once receiving the seqno via the last request's user interrupt. In execlist mode the corresponding context completed interrupt can be delayed though and until this latter interrupt arrives we consider the request to be pending on the ELSP submit port. This can cause a

Re: [Intel-gfx] [PATCH v4 2/3] drm/i915: Make sure engines are idle during GPU idling in LR mode

On Sat, Nov 05, 2016 at 10:36:00AM +0200, Imre Deak wrote: > We assume that the GPU is idle once receiving the seqno via the last > request's user interrupt. In execlist mode the corresponding context > completed interrupt can be delayed though and until this latter > interrupt arrives we consider