Merge tag 'drm-intel-next-2014-12-19' of git://anongit.freedesktop.org/drm-intel...

[cascardo/linux.git] / drivers / gpu / drm / i915 / i915_irq.c

diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index e3dd2d6..5d83773 100644 (file)
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -285,10 +285,14 @@ void gen6_enable_rps_interrupts(struct drm_device *dev)
        struct drm_i915_private *dev_priv = dev->dev_private;
 
        spin_lock_irq(&dev_priv->irq_lock);
+
        WARN_ON(dev_priv->rps.pm_iir);
        WARN_ON(I915_READ(gen6_pm_iir(dev_priv)) & dev_priv->pm_rps_events);
        dev_priv->rps.interrupts_enabled = true;
+       I915_WRITE(gen6_pm_ier(dev_priv), I915_READ(gen6_pm_ier(dev_priv)) |
+                               dev_priv->pm_rps_events);
        gen6_enable_pm_irq(dev_priv, dev_priv->pm_rps_events);
+
        spin_unlock_irq(&dev_priv->irq_lock);
 }
 
@@ -3313,8 +3317,10 @@ static void gen5_gt_irq_postinstall(struct drm_device *dev)
        GEN5_IRQ_INIT(GT, dev_priv->gt_irq_mask, gt_irqs);
 
        if (INTEL_INFO(dev)->gen >= 6) {
-               pm_irqs |= dev_priv->pm_rps_events;
-
+               /*
+                * RPS interrupts will get enabled/disabled on demand when RPS
+                * itself is enabled/disabled.
+                */
                if (HAS_VEBOX(dev))
                        pm_irqs |= PM_VEBOX_USER_INTERRUPT;
 
@@ -3526,7 +3532,11 @@ static void gen8_gt_irq_postinstall(struct drm_i915_private *dev_priv)
        dev_priv->pm_irq_mask = 0xffffffff;
        GEN8_IRQ_INIT_NDX(GT, 0, ~gt_interrupts[0], gt_interrupts[0]);
        GEN8_IRQ_INIT_NDX(GT, 1, ~gt_interrupts[1], gt_interrupts[1]);
-       GEN8_IRQ_INIT_NDX(GT, 2, dev_priv->pm_irq_mask, dev_priv->pm_rps_events);
+       /*
+        * RPS interrupts will get enabled/disabled on demand when RPS itself
+        * is enabled/disabled.
+        */
+       GEN8_IRQ_INIT_NDX(GT, 2, dev_priv->pm_irq_mask, 0);
        GEN8_IRQ_INIT_NDX(GT, 3, ~gt_interrupts[3], gt_interrupts[3]);
 }
 
@@ -3615,7 +3625,7 @@ static void vlv_display_irq_uninstall(struct drm_i915_private *dev_priv)
 
        vlv_display_irq_reset(dev_priv);
 
-       dev_priv->irq_mask = 0;
+       dev_priv->irq_mask = ~0;
 }
 
 static void valleyview_irq_uninstall(struct drm_device *dev)