drm/i915: populate mem_freq/cz_clock for chv
We need mem_freq or cz clock for freq/opcode conversion
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>
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 8066ca5..32ccd7a 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -5700,6 +5700,35 @@
static void cherryview_init_clock_gating(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
+ u32 val;
+
+ mutex_lock(&dev_priv->rps.hw_lock);
+ val = vlv_punit_read(dev_priv, CCK_FUSE_REG);
+ mutex_unlock(&dev_priv->rps.hw_lock);
+ switch ((val >> 2) & 0x7) {
+ case 0:
+ case 1:
+ dev_priv->rps.cz_freq = CHV_CZ_CLOCK_FREQ_MODE_200;
+ dev_priv->mem_freq = 1600;
+ break;
+ case 2:
+ dev_priv->rps.cz_freq = CHV_CZ_CLOCK_FREQ_MODE_267;
+ dev_priv->mem_freq = 1600;
+ break;
+ case 3:
+ dev_priv->rps.cz_freq = CHV_CZ_CLOCK_FREQ_MODE_333;
+ dev_priv->mem_freq = 2000;
+ break;
+ case 4:
+ dev_priv->rps.cz_freq = CHV_CZ_CLOCK_FREQ_MODE_320;
+ dev_priv->mem_freq = 1600;
+ break;
+ case 5:
+ dev_priv->rps.cz_freq = CHV_CZ_CLOCK_FREQ_MODE_400;
+ dev_priv->mem_freq = 1600;
+ break;
+ }
+ DRM_DEBUG_DRIVER("DDR speed: %d MHz", dev_priv->mem_freq);
I915_WRITE(DSPCLK_GATE_D, VRHUNIT_CLOCK_GATE_DISABLE);