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drm/i915/chv: Add basic PM interrupt support for CHV 

Enabled PM interrupt programming for CHV. Re-using gen8 code and extending same for CHV.

Signed-off-by: Deepak S <deepak.s@linux.intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Deepak S 2014-07-10 13:16:26 +05:30 committed by Daniel Vetter
parent 22b1b2f866
commit 3497a5620c
2 changed files with 5 additions and 1 deletions
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2
drivers/gpu/drm/i915/i915_irq.c
View File

@ -1407,7 +1407,7 @@ static void gen6_pm_rps_work(struct work_struct *work)
spin_lock_irq(&dev_priv->irq_lock);
pm_iir = dev_priv->rps.pm_iir;
dev_priv->rps.pm_iir = 0;
if (IS_BROADWELL(dev_priv->dev))
if (IS_BROADWELL(dev_priv->dev) || IS_CHERRYVIEW(dev_priv->dev))
bdw_enable_pm_irq(dev_priv, dev_priv->pm_rps_events);
else {
/* Make sure not to corrupt PMIMR state used by ringbuffer */

4
drivers/gpu/drm/i915/intel_pm.c
View File

@ -3392,6 +3392,8 @@ static void cherryview_disable_rps(struct drm_device *dev)
struct drm_i915_private *dev_priv = dev->dev_private;
I915_WRITE(GEN6_RC_CONTROL, 0);
gen8_disable_rps_interrupts(dev);
}
static void valleyview_disable_rps(struct drm_device *dev)
@ -4109,6 +4111,8 @@ static void cherryview_enable_rps(struct drm_device *dev)
valleyview_set_rps(dev_priv->dev, dev_priv->rps.efficient_freq);
gen8_enable_rps_interrupts(dev);
gen6_gt_force_wake_put(dev_priv, FORCEWAKE_ALL);
}