diff mbox

[6/8] drm/i915: change force wake order for GT read

Message ID 1300699639-23996-7-git-send-email-zhenyuw@linux.intel.com (mailing list archive)
State New, archived
Headers show

Commit Message

Zhenyu Wang March 21, 2011, 9:27 a.m. UTC 
None
diff mbox

Patch

diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index dd8bd5c..a55b71d 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -264,10 +264,6 @@  void __gen6_gt_force_wake_get(struct drm_i915_private *dev_priv)
 {
 	int count;
 
-	count = 0;
-	while (count++ < 50 && (I915_READ_NOTRACE(FORCEWAKE_ACK) & 1))
-		udelay(10);
-
 	I915_WRITE_NOTRACE(FORCEWAKE, 1);
 	POSTING_READ(FORCEWAKE);
 
@@ -278,8 +274,15 @@  void __gen6_gt_force_wake_get(struct drm_i915_private *dev_priv)
 
 void __gen6_gt_force_wake_put(struct drm_i915_private *dev_priv)
 {
+	int count;
+
 	I915_WRITE_NOTRACE(FORCEWAKE, 0);
 	POSTING_READ(FORCEWAKE);
+
+	count = 0;
+	while (count++ < 50 && (I915_READ_NOTRACE(FORCEWAKE_ACK) & 1))
+		udelay(10);
+
 }
 
 void __gen6_gt_wait_for_fifo(struct drm_i915_private *dev_priv)