Re: [Intel-gfx] [PATCH] drm/i915/hsw: Fix GPU hang during resume from S3-devices state

2016-10-12 Thread Chris Wilson
On Wed, Oct 12, 2016 at 05:46:37PM +0300, Imre Deak wrote: > Currently resuming on HSW from S3 pm_test/devices state leads to an > unrecoverable GPU hang. Resetting the GPU during suspend fixes this. For > a full S3 cycle this change only means the reset happens earlier (before > reaching S3). For

[Intel-gfx] [PATCH] drm/i915/hsw: Fix GPU hang during resume from S3-devices state

2016-10-12 Thread Imre Deak
Currently resuming on HSW from S3 pm_test/devices state leads to an unrecoverable GPU hang. Resetting the GPU during suspend fixes this. For a full S3 cycle this change only means the reset happens earlier (before reaching S3). For S4 the reset will happen now both during the freeze and quiesce pha