Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...

[~andy/linux] / drivers / gpu / drm / i915 / intel_pm.c

diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index d77cc81900f92100ba2f61d7130bc9b0b60454b5..e1fc35a726564cc9f3526231780672d09d151838 100644 (file)
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -3493,6 +3493,8 @@ static void valleyview_setup_pctx(struct drm_device *dev)
        u32 pcbr;
        int pctx_size = 24*1024;
 
+       WARN_ON(!mutex_is_locked(&dev->struct_mutex));
+
        pcbr = I915_READ(VLV_PCBR);
        if (pcbr) {
                /* BIOS set it up already, grab the pre-alloc'd space */
@@ -3542,8 +3544,6 @@ static void valleyview_enable_rps(struct drm_device *dev)
                I915_WRITE(GTFIFODBG, gtfifodbg);
        }
 
-       valleyview_setup_pctx(dev);
-
        /* If VLV, Forcewake all wells, else re-direct to regular path */
        gen6_gt_force_wake_get(dev_priv, FORCEWAKE_ALL);
 
@@ -4395,6 +4395,8 @@ void intel_enable_gt_powersave(struct drm_device *dev)
                ironlake_enable_rc6(dev);
                intel_init_emon(dev);
        } else if (IS_GEN6(dev) || IS_GEN7(dev)) {
+               if (IS_VALLEYVIEW(dev))
+                       valleyview_setup_pctx(dev);
                /*
                 * PCU communication is slow and this doesn't need to be
                 * done at any specific time, so do this out of our fast path