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authorDaniel Vetter <daniel.vetter@ffwll.ch>2012-01-20 10:43:44 +0100
committerDaniel Vetter <daniel.vetter@ffwll.ch>2012-01-21 17:09:05 +0100
commitc6a32fcbbbc25d7d4e7178aa984e5ef186ee9589 (patch)
treef1f6e90ecead1a71d2d5b6223a5a22ffd574d469 /drivers/gpu/drm/i915/intel_display.c
parentdrm/i915: add a LLC feature flag in device description (diff)
downloadlinux-c6a32fcbbbc25d7d4e7178aa984e5ef186ee9589.tar.xz
linux-c6a32fcbbbc25d7d4e7178aa984e5ef186ee9589.zip
drm/i915: clarify gen2 pageflip cmd
I've reviewed gen2 pageflip code to hunt down multiple prepare pageflip issues. The only thing I've found is a slight but functionally meaningless confusion about the length of the mi cmd. Fix it up and add a comment about what this dword should be (according to docs at least). Reviewed-by: Eric Anholt <eric@anholt.net> Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_display.c')
-rw-r--r--drivers/gpu/drm/i915/intel_display.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index ebe71eda9546..4247a7b1823b 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -7288,7 +7288,7 @@ static int intel_gen2_queue_flip(struct drm_device *dev,
MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
OUT_RING(fb->pitches[0]);
OUT_RING(obj->gtt_offset + offset);
- OUT_RING(MI_NOOP);
+ OUT_RING(0); /* aux display base address, unused */
ADVANCE_LP_RING();
out:
return ret;