drm/i915: factor out gen6_update_ring_freq

This is needed by the next patch moving the call out from platform
specific RPM callbacks to platform independent code.

No functional change.

v2:
- patch introduce in v2 of the patchset
v3:
- simplify platform check condition (Ville)

Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index ff02b0c..8c26000 100644 (file)
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -927,9 +927,7 @@ static void snb_runtime_resume(struct drm_i915_private *dev_priv)
 
        intel_init_pch_refclk(dev);
        i915_gem_init_swizzling(dev);
-       mutex_lock(&dev_priv->rps.hw_lock);
        gen6_update_ring_freq(dev);
-       mutex_unlock(&dev_priv->rps.hw_lock);
 }
 
 static void hsw_runtime_resume(struct drm_i915_private *dev_priv)

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index a3a3a7e..5ae1e00 100644 (file)
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -7057,9 +7057,7 @@ void hsw_disable_pc8(struct drm_i915_private *dev_priv)
 
        intel_prepare_ddi(dev);
        i915_gem_init_swizzling(dev);
-       mutex_lock(&dev_priv->rps.hw_lock);
        gen6_update_ring_freq(dev);
-       mutex_unlock(&dev_priv->rps.hw_lock);
 }
 
 static void snb_modeset_global_resources(struct drm_device *dev)

diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 69f98a2..ee6c568 100644 (file)
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -3525,7 +3525,7 @@ static void gen6_enable_rps(struct drm_device *dev)
        gen6_gt_force_wake_put(dev_priv, FORCEWAKE_ALL);
 }
 
-void gen6_update_ring_freq(struct drm_device *dev)
+static void __gen6_update_ring_freq(struct drm_device *dev)
 {
        struct drm_i915_private *dev_priv = dev->dev_private;
        int min_freq = 15;
@@ -3595,6 +3595,18 @@ void gen6_update_ring_freq(struct drm_device *dev)
        }
 }
 
+void gen6_update_ring_freq(struct drm_device *dev)
+{
+       struct drm_i915_private *dev_priv = dev->dev_private;
+
+       if (INTEL_INFO(dev)->gen < 6 || IS_VALLEYVIEW(dev))
+               return;
+
+       mutex_lock(&dev_priv->rps.hw_lock);
+       __gen6_update_ring_freq(dev);
+       mutex_unlock(&dev_priv->rps.hw_lock);
+}
+
 int valleyview_rps_max_freq(struct drm_i915_private *dev_priv)
 {
        u32 val, rp0;
@@ -4566,10 +4578,10 @@ static void intel_gen6_powersave_work(struct work_struct *work)
                valleyview_enable_rps(dev);
        } else if (IS_BROADWELL(dev)) {
                gen8_enable_rps(dev);
-               gen6_update_ring_freq(dev);
+               __gen6_update_ring_freq(dev);
        } else {
                gen6_enable_rps(dev);
-               gen6_update_ring_freq(dev);
+               __gen6_update_ring_freq(dev);
        }
        dev_priv->rps.enabled = true;
        mutex_unlock(&dev_priv->rps.hw_lock);