commit 881ee9889c8b98671c5491e43666bf5d4f78a180
author Keith Packard <keithp@keithp.com> Sun Nov 02 23:08:44 2008 -0800
committer Dave Airlie <airlied@linux.ie> Tue Nov 11 17:42:19 2008 +1000
tree c6b851fbea5d4cf485263f16e998a647ea37d5ba
parent 3ad4f597058301c97f362e500a32f63f5c950a45

i915: Save/restore MCHBAR_RENDER_STANDBY on GM965/GM45

This register is set by the 2D driver to prevent lockups, and so it needs to
be preserved across suspend/resume too. This makes my X200s work.

Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@linux.ie>

drivers/gpu/drm/i915/i915_reg.h

diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 5c2d9f2..0e476eb 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -527,6 +527,9 @@
 #define C0DRB3			0x10206
 #define C1DRB3			0x10606
 
+/** GM965 GM45 render standby register */
+#define MCHBAR_RENDER_STANDBY	0x111B8
+
 /*
  * Overlay regs
  */