drm/i915: move rps irq enable/disable to i915_irq.c

The logical place for these functions is in i915_irq.c next to the rest of
PM interrupt handling functions.

No functional change.

Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 4cda40a..96d150f 100644 (file)
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -202,11 +202,21 @@ void gen5_disable_gt_irq(struct drm_i915_private *dev_priv, uint32_t mask)
        ilk_update_gt_irq(dev_priv, mask, 0);
 }
 
+static u32 gen6_pm_iir(struct drm_i915_private *dev_priv)
+{
+       return INTEL_INFO(dev_priv)->gen >= 8 ? GEN8_GT_IIR(2) : GEN6_PMIIR;
+}
+
 static u32 gen6_pm_imr(struct drm_i915_private *dev_priv)
 {
        return INTEL_INFO(dev_priv)->gen >= 8 ? GEN8_GT_IMR(2) : GEN6_PMIMR;
 }
 
+static u32 gen6_pm_ier(struct drm_i915_private *dev_priv)
+{
+       return INTEL_INFO(dev_priv)->gen >= 8 ? GEN8_GT_IER(2) : GEN6_PMIER;
+}
+
 /**
   * snb_update_pm_irq - update GEN6_PMIMR
   * @dev_priv: driver private
@@ -245,6 +255,37 @@ void gen6_disable_pm_irq(struct drm_i915_private *dev_priv, uint32_t mask)
        snb_update_pm_irq(dev_priv, mask, 0);
 }
 
+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);
+       gen6_enable_pm_irq(dev_priv, dev_priv->pm_rps_events);
+       I915_WRITE(gen6_pm_iir(dev_priv), dev_priv->pm_rps_events);
+       spin_unlock_irq(&dev_priv->irq_lock);
+}
+
+void gen6_disable_rps_interrupts(struct drm_device *dev)
+{
+       struct drm_i915_private *dev_priv = dev->dev_private;
+
+       I915_WRITE(GEN6_PMINTRMSK, INTEL_INFO(dev_priv)->gen >= 8 ?
+                  ~GEN8_PMINTR_REDIRECT_TO_NON_DISP : ~0);
+       I915_WRITE(gen6_pm_ier(dev_priv), I915_READ(gen6_pm_ier(dev_priv)) &
+                               ~dev_priv->pm_rps_events);
+       /* Complete PM interrupt masking here doesn't race with the rps work
+        * item again unmasking PM interrupts because that is using a different
+        * register (PMIMR) to mask PM interrupts. The only risk is in leaving
+        * stale bits in PMIIR and PMIMR which gen6_enable_rps will clean up. */
+
+       spin_lock_irq(&dev_priv->irq_lock);
+       dev_priv->rps.pm_iir = 0;
+       spin_unlock_irq(&dev_priv->irq_lock);
+
+       I915_WRITE(gen6_pm_iir(dev_priv), dev_priv->pm_rps_events);
+}
+
 /**
  * ibx_display_interrupt_update - update SDEIMR
  * @dev_priv: driver private

diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index d93697a..2499348 100644 (file)
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -784,6 +784,8 @@ void gen5_enable_gt_irq(struct drm_i915_private *dev_priv, uint32_t mask);
 void gen5_disable_gt_irq(struct drm_i915_private *dev_priv, uint32_t mask);
 void gen6_enable_pm_irq(struct drm_i915_private *dev_priv, uint32_t mask);
 void gen6_disable_pm_irq(struct drm_i915_private *dev_priv, uint32_t mask);
+void gen6_enable_rps_interrupts(struct drm_device *dev);
+void gen6_disable_rps_interrupts(struct drm_device *dev);
 void intel_runtime_pm_disable_interrupts(struct drm_i915_private *dev_priv);
 void intel_runtime_pm_enable_interrupts(struct drm_i915_private *dev_priv);
 static inline bool intel_irqs_enabled(struct drm_i915_private *dev_priv)

diff --cc drivers/gpu/drm/i915/intel_pm.c
Simple merge