diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_pm.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_pm.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 4e678bad46d3..d806448f84fa 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -248,6 +248,12 @@ static void ironlake_disable_fbc(struct drm_device *dev) I915_READ(ILK_DSPCLK_GATE_D) & ~ILK_DPFCUNIT_CLOCK_GATE_DISABLE); + if (IS_HASWELL(dev)) + /* WaFbcDisableDpfcClockGating */ + I915_WRITE(HSW_CLKGATE_DISABLE_PART_1, + I915_READ(HSW_CLKGATE_DISABLE_PART_1) & + ~HSW_DPFC_GATING_DISABLE); + DRM_DEBUG_KMS("disabled FBC\n"); } } @@ -285,6 +291,10 @@ static void gen7_enable_fbc(struct drm_crtc *crtc, unsigned long interval) /* WaFbcAsynchFlipDisableFbcQueue */ I915_WRITE(HSW_PIPE_SLICE_CHICKEN_1(intel_crtc->pipe), HSW_BYPASS_FBC_QUEUE); + /* WaFbcDisableDpfcClockGating */ + I915_WRITE(HSW_CLKGATE_DISABLE_PART_1, + I915_READ(HSW_CLKGATE_DISABLE_PART_1) | + HSW_DPFC_GATING_DISABLE); } I915_WRITE(SNB_DPFC_CTL_SA, |