From 91e41d1665c868a26a24580b83c321e04be43dfe Mon Sep 17 00:00:00 2001 From: Damien Lespiau Date: Wed, 26 Mar 2014 17:42:50 +0000 Subject: [PATCH] drm/i915/skl: Implement Wa4x4STCOptimizationDisable:skl Reviewed-by: Rodrigo Vivi Signed-off-by: Damien Lespiau Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/intel_pm.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 81465e65e876..64eb3b82b466 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -76,6 +76,10 @@ static void gen9_init_clock_gating(struct drm_device *dev) */ I915_WRITE(GEN8_UCGCTL6, I915_READ(GEN8_UCGCTL6) | GEN8_SDEUNIT_CLOCK_GATE_DISABLE); + + /* Wa4x4STCOptimizationDisable:skl */ + I915_WRITE(CACHE_MODE_1, + _MASKED_BIT_ENABLE(GEN8_4x4_STC_OPTIMIZATION_DISABLE)); } static void i8xx_disable_fbc(struct drm_device *dev) -- 2.20.1