From: Jesse Barnes Date: Thu, 19 Sep 2013 16:33:13 +0000 (-0700) Subject: drm/i915/vlv: honor i915_enable_rc6 boot param on VLV X-Git-Tag: next-20130927~51^2~78 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=a2b23fe04e183ef58ed45183e39dbc696f9600b1;p=karo-tx-linux.git drm/i915/vlv: honor i915_enable_rc6 boot param on VLV Disabling it isn't really an option on these platforms, but having it available for power comparisons is useful. Signed-off-by: Jesse Barnes Signed-off-by: Daniel Vetter --- diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index fe19ba3360a7..0d7e2d324f1b 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -3788,7 +3788,7 @@ static void valleyview_enable_rps(struct drm_device *dev) { struct drm_i915_private *dev_priv = dev->dev_private; struct intel_ring_buffer *ring; - u32 gtfifodbg, val; + u32 gtfifodbg, val, rc6_mode = 0; int i; WARN_ON(!mutex_is_locked(&dev_priv->rps.hw_lock)); @@ -3828,8 +3828,9 @@ static void valleyview_enable_rps(struct drm_device *dev) /* allows RC6 residency counter to work */ I915_WRITE(0x138104, _MASKED_BIT_ENABLE(0x3)); - I915_WRITE(GEN6_RC_CONTROL, - GEN7_RC_CTL_TO_MODE); + if (intel_enable_rc6(dev) & INTEL_RC6_ENABLE) + rc6_mode = GEN7_RC_CTL_TO_MODE; + I915_WRITE(GEN6_RC_CONTROL, rc6_mode); val = vlv_punit_read(dev_priv, PUNIT_REG_GPU_FREQ_STS); switch ((val >> 6) & 3) {