drm/i915: implement WaDisableEarlyCull for VLV and IVB

[mirror_ubuntu-artful-kernel.git] / drivers / gpu / drm / i915 / intel_pm.c

diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index f1f1fd005c783be0365815815fcbaa00ccc20e67..62fe848d60f064498f6d528050ee46f1a716e4e5 100644 (file)
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -3475,6 +3475,10 @@ static void haswell_init_clock_gating(struct drm_device *dev)
 
        I915_WRITE(ILK_DSPCLK_GATE, IVB_VRHUNIT_CLK_GATE);
 
+       /* WaDisableEarlyCull */
+       I915_WRITE(_3D_CHICKEN3,
+                  _MASKED_BIT_ENABLE(_3D_CHICKEN_SF_DISABLE_OBJEND_CULL));
+
        I915_WRITE(IVB_CHICKEN3,
                   CHICKEN3_DGMG_REQ_OUT_FIX_DISABLE |
                   CHICKEN3_DGMG_DONE_FIX_DISABLE);
@@ -3533,6 +3537,10 @@ static void ivybridge_init_clock_gating(struct drm_device *dev)
 
        I915_WRITE(ILK_DSPCLK_GATE, IVB_VRHUNIT_CLK_GATE);
 
+       /* WaDisableEarlyCull */
+       I915_WRITE(_3D_CHICKEN3,
+                  _MASKED_BIT_ENABLE(_3D_CHICKEN_SF_DISABLE_OBJEND_CULL));
+
        I915_WRITE(IVB_CHICKEN3,
                   CHICKEN3_DGMG_REQ_OUT_FIX_DISABLE |
                   CHICKEN3_DGMG_DONE_FIX_DISABLE);
@@ -3609,6 +3617,10 @@ static void valleyview_init_clock_gating(struct drm_device *dev)
 
        I915_WRITE(ILK_DSPCLK_GATE, IVB_VRHUNIT_CLK_GATE);
 
+       /* WaDisableEarlyCull */
+       I915_WRITE(_3D_CHICKEN3,
+                  _MASKED_BIT_ENABLE(_3D_CHICKEN_SF_DISABLE_OBJEND_CULL));
+
        I915_WRITE(IVB_CHICKEN3,
                   CHICKEN3_DGMG_REQ_OUT_FIX_DISABLE |
                   CHICKEN3_DGMG_DONE_FIX_DISABLE);