tree 19c7cd768bbbc5a35b124dc856e109a8b2ddff5f
parent 52440211dcdc52c0b757f8b34d122e11b12cdd50
author Peng Li <peng.li@intel.com> 1226983142 +0800
committer Dave Airlie <airlied@redhat.com> 1227678445 +1000

drm/i915: Save/restore HWS_PGA on suspend/resume

It fixes suspend/resume failure of xf86-video-intel dri2
branch. As dri2 branch doesn't call I830DRIResume() to restore
hardware status page anymore, we need to preserve
this register across suspend/resume.

Signed-off-by: Peng Li <peng.li@intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>