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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-05-27 11:00:52 +0900
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-05-27 11:00:52 +0900
commit45f6bc5ff9c3387387f048ec85dcb4e69acf0b03 (patch)
treed04952bb05b53a362bcd165fb910c5c1441b4c5d /drivers/gpu/drm/i915/intel_fb.c
parent3138887bd8d18173f3c2baf1e43621c49090cd27 (diff)
parente4aa937ec75df0eea0bee03bffa3303ad36c986b (diff)
Merge 3.10-rc3 into usb-next
We want these fixes. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_fb.c')
-rw-r--r--drivers/gpu/drm/i915/intel_fb.c16
1 files changed, 14 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/intel_fb.c b/drivers/gpu/drm/i915/intel_fb.c
index 0e19e575a1b..6b7c3ca2c03 100644
--- a/drivers/gpu/drm/i915/intel_fb.c
+++ b/drivers/gpu/drm/i915/intel_fb.c
@@ -262,10 +262,22 @@ void intel_fbdev_fini(struct drm_device *dev)
void intel_fbdev_set_suspend(struct drm_device *dev, int state)
{
drm_i915_private_t *dev_priv = dev->dev_private;
- if (!dev_priv->fbdev)
+ struct intel_fbdev *ifbdev = dev_priv->fbdev;
+ struct fb_info *info;
+
+ if (!ifbdev)
return;
- fb_set_suspend(dev_priv->fbdev->helper.fbdev, state);
+ info = ifbdev->helper.fbdev;
+
+ /* On resume from hibernation: If the object is shmemfs backed, it has
+ * been restored from swap. If the object is stolen however, it will be
+ * full of whatever garbage was left in there.
+ */
+ if (!state && ifbdev->ifb.obj->stolen)
+ memset_io(info->screen_base, 0, info->screen_size);
+
+ fb_set_suspend(info, state);
}
MODULE_LICENSE("GPL and additional rights");