Author: rnoland
Date: Thu Jun 25 15:47:32 2009
New Revision: 194966
URL: http://svn.freebsd.org/changeset/base/194966
Log:
Keep track of the hardware counter more aggressively while interrupts
are enabled. This should help to reduce cases where the hardware
counter reference jumps by large amounts.
MFC after: 3 days
Modified:
head/sys/dev/drm/drm_irq.c
Modified: head/sys/dev/drm/drm_irq.c
==============================================================================
--- head/sys/dev/drm/drm_irq.c Thu Jun 25 15:36:11 2009 (r194965)
+++ head/sys/dev/drm/drm_irq.c Thu Jun 25 15:47:32 2009 (r194966)
@@ -325,6 +325,10 @@ int drm_vblank_get(struct drm_device *de
}
}
+ if (dev->vblank[crtc].enabled)
+ dev->vblank[crtc].last =
+ dev->driver->get_vblank_counter(dev, crtc);
+
return ret;
}
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