[Intel-gfx] [PATCH] drm/i915: Undo gtt scratch pte unmapping again

[Daniel Vetter]

It apparently blows up on some machines. This functionally reverts

commit 828c79087cec61eaf4c76bb32c222fbe35ac3930
Author: Ben Widawsky <benjamin.widawsky at intel.com>
Date:   Wed Oct 16 09:21:30 2013 -0700

    drm/i915: Disable GGTT PTEs on GEN6+ suspend

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=64841
Reported-and-Tested-by: Brad  Jackson <bjackson0971 at gmail.com>
Cc: stable at vger.kernel.org
Cc: Takashi Iwai <tiwai at suse.de>
Cc: Paulo Zanoni <paulo.r.zanoni at intel.com>
Cc: Todd Previte <tprevite at gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter at ffwll.ch>
---
 drivers/gpu/drm/i915/i915_gem_gtt.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index 5d61de18ae55..4467974eb53b 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -1281,7 +1281,7 @@ void i915_gem_suspend_gtt_mappings(struct drm_device *dev)
 	dev_priv->gtt.base.clear_range(&dev_priv->gtt.base,
 				       dev_priv->gtt.base.start,
 				       dev_priv->gtt.base.total,
-				       false);
+				       true);
 }
 
 void i915_gem_restore_gtt_mappings(struct drm_device *dev)
-- 
1.8.5.2