Re: [Intel-gfx] [PATCH v4] drm/i915: Avoid GPU Hang when comming out of s3 or s4

2015-05-14 Thread shuang . he
Tested-By: Intel Graphics QA PRTS (Patch Regression Test System Contact: shuang...@intel.com) Task id: 6380 -Summary- Platform Delta drm-intel-nightly Series Applied PNV

Re: [Intel-gfx] [PATCH v4] drm/i915: Avoid GPU Hang when comming out of s3 or s4

2015-05-11 Thread Greg KH
On Mon, May 11, 2015 at 12:05:27PM +0100, Peter Antoine wrote: > This patch fixed a timing issue that causes a GPU hang when a the system > comes out of power saving. > > During pm_resume, We are submitting batchbuffers before enabling > Interrupts this is causing us to miss the context switch int

[Intel-gfx] [PATCH v4] drm/i915: Avoid GPU Hang when comming out of s3 or s4

2015-05-11 Thread Peter Antoine
This patch fixed a timing issue that causes a GPU hang when a the system comes out of power saving. During pm_resume, We are submitting batchbuffers before enabling Interrupts this is causing us to miss the context switch interrupt, and in consequence intel_execlists_handle_ctx_events is not trigg