diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index cae89fe9b84f85d731e80e4cbd2bf7549225ea86..d212e42638d9e62c92d35fa6274b55bbca3e90ec 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -4453,6 +4453,7 @@ static void ironlake_init_clock_gating(struct drm_device *dev) * The bit 7,8,9 of 0x42020. */ if (IS_IRONLAKE_M(dev)) { + /* WaFbcAsynchFlipDisableFbcQueue:ilk */ I915_WRITE(ILK_DISPLAY_CHICKEN1, I915_READ(ILK_DISPLAY_CHICKEN1) | ILK_FBCQ_DIS); @@ -4589,6 +4590,8 @@ static void gen6_init_clock_gating(struct drm_device *dev) * The bit5 and bit7 of 0x42020 * The bit14 of 0x70180 * The bit14 of 0x71180 + * + * WaFbcAsynchFlipDisableFbcQueue:snb */ I915_WRITE(ILK_DISPLAY_CHICKEN1, I915_READ(ILK_DISPLAY_CHICKEN1) |