Thanks Chirs for review, We moved "Init_hw" to initialize WA's before any BB submission. Init_hw calls " init_clock_gating" Thanks Deepak -----Original Message----- From: Chris Wilson [mailto:chris@xxxxxxxxxxxxxxxxxx] Sent: Tuesday, April 28, 2015 12:53 PM To: Antoine, Peter Cc: intel-gfx@xxxxxxxxxxxxxxxxxxxxx; S, Deepak; Tian, YeX; Weinehall, David Subject: Re: [PATCH v2] drm/i915: Avoid GPU hang when coming out of S3 or S4 On Tue, Apr 28, 2015 at 08:18:14AM +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 interrupt, > and in consequence intel_execlists_handle_ctx_events is not triggered. Ah. Thanks. How about a code comment? :) But that doesn't explain moving init_hw... -Chris -- Chris Wilson, Intel Open Source Technology Centre _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
