svn commit: r257312 - stable/9/sys/dev/drm2/i915

[Konstantin Belousov]

Author: kib
Date: Tue Oct 29 07:48:36 2013
New Revision: 257312
URL: http://svnweb.freebsd.org/changeset/base/257312

Log:
  MFC r256848:
  Use plain register read for waiting of the reset completion
  notification, to avoid gt_lock recursion.

Modified:
  stable/9/sys/dev/drm2/i915/i915_drv.c
Directory Properties:
  stable/9/sys/   (props changed)
  stable/9/sys/dev/   (props changed)

Modified: stable/9/sys/dev/drm2/i915/i915_drv.c
==============================================================================
--- stable/9/sys/dev/drm2/i915/i915_drv.c	Tue Oct 29 07:35:19 2013	(r257311)
+++ stable/9/sys/dev/drm2/i915/i915_drv.c	Tue Oct 29 07:48:36 2013	(r257312)
@@ -685,7 +685,7 @@ gen6_do_reset(struct drm_device *dev, u8
 
 	/* Spin waiting for the device to ack the reset request */
 	ret = _intel_wait_for(dev,
-	    (I915_READ(GEN6_GDRST) & GEN6_GRDOM_FULL) == 0,
+	    (I915_READ_NOTRACE(GEN6_GDRST) & GEN6_GRDOM_FULL) == 0,
 	    500, 1, "915rst");
 
 	/* If reset with a user forcewake, try to restore, otherwise turn it off */