Merge tag 'v3.6-rc2' into drm-intel-next

Backmerge Linux 3.6-rc2 to resolve a few funny conflicts before we put
even more madness on top:

- drivers/gpu/drm/i915/i915_irq.c: Just a spurious WARN removed in
  -fixes, that has been changed in a variable-rename in -next, too.

- drivers/gpu/drm/i915/intel_ringbuffer.c: -next remove scratch_addr
  (since all their users have been extracted in another fucntion),
  -fixes added another user for a hw workaroudn.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

1 files changed, 4 insertions, 2 deletions

diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index d64dffbe0e0d..c0407aa5baac 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -3972,6 +3972,7 @@ static void __gen6_gt_force_wake_get(struct drm_i915_private *dev_priv)
                 DRM_ERROR("Force wake wait timed out\n");
 
         I915_WRITE_NOTRACE(FORCEWAKE, 1);
+        POSTING_READ(FORCEWAKE);
 
         if (wait_for_atomic_us((I915_READ_NOTRACE(forcewake_ack) & 1), 500))
                 DRM_ERROR("Force wake wait timed out\n");
@@ -3992,6 +3993,7 @@ static void __gen6_gt_force_wake_mt_get(struct drm_i915_private *dev_priv)
                 DRM_ERROR("Force wake wait timed out\n");
 
         I915_WRITE_NOTRACE(FORCEWAKE_MT, _MASKED_BIT_ENABLE(1));
+        POSTING_READ(FORCEWAKE_MT);
 
         if (wait_for_atomic_us((I915_READ_NOTRACE(forcewake_ack) & 1), 500))
                 DRM_ERROR("Force wake wait timed out\n");
@@ -4027,14 +4029,14 @@ void gen6_gt_check_fifodbg(struct drm_i915_private *dev_priv)
 static void __gen6_gt_force_wake_put(struct drm_i915_private *dev_priv)
 {
         I915_WRITE_NOTRACE(FORCEWAKE, 0);
-        /* The below doubles as a POSTING_READ */
+        POSTING_READ(FORCEWAKE);
         gen6_gt_check_fifodbg(dev_priv);
 }
 
 static void __gen6_gt_force_wake_mt_put(struct drm_i915_private *dev_priv)
 {
         I915_WRITE_NOTRACE(FORCEWAKE_MT, _MASKED_BIT_DISABLE(1));
-        /* The below doubles as a POSTING_READ */
+        POSTING_READ(FORCEWAKE_MT);
         gen6_gt_check_fifodbg(dev_priv);
 }