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 S4 the reset will happen now both during the freeze > and quiesce phases, which is a benefit since it will guarantee that the > GPU is idle before creating and loading the hibernation image. > > Cc: Mika Kuoppala <mika.kuoppala@xxxxxxxxx> > Cc: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> > Suggested-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> > Signed-off-by: Imre Deak <imre.deak@xxxxxxxxx> Makes sense, we should treat the transition to suspend just like unload. We should do the symmetric reset on load/resume as well. Reviewed-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> -Chris -- Chris Wilson, Intel Open Source Technology Centre _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
