drm: Add a debug node for vblank state.

Signed-off-by: Eric Anholt <eric@anholt.net> Signed-off-by: Dave Airlie <airlied@linux.ie>
2008-12-19 17:23:38 -08:00
parent f51c5b6e62
commit fede5c91c4
3 changed files with 73 additions and 0 deletions
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -911,6 +911,7 @@ struct drm_device {
 	int *vblank_enabled;            /* so we don't call enable more than
 					   once per disable */
 	int *vblank_inmodeset;          /* Display driver is setting mode */
+	u32 *last_vblank_wait;		/* Last vblank seqno waited per CRTC */
 	struct timer_list vblank_disable_timer;

 	u32 max_vblank_count;           /**< size of vblank counter register */