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Commit 62cb944f authored by Damien Lespiau's avatar Damien Lespiau Committed by Daniel Vetter
Browse files

drm/i915: Document that we are implementing WaDisableBackToBackFlipFix 



For the next person that checks these kind of things, without having to
dig up the register definition.

Signed-off-by: default avatarDamien Lespiau <damien.lespiau@intel.com>
Reviewed-by: default avatarPaulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
parent 1a4bd9ea

drivers/gpu/drm/i915/intel_pm.c

+2 −0
Original line number Diff line number Diff line
@@ -3536,6 +3536,7 @@ static void ivybridge_init_clock_gating(struct drm_device *dev) 
	I915_WRITE(_3D_CHICKEN3,

		   _MASKED_BIT_ENABLE(_3D_CHICKEN_SF_DISABLE_OBJEND_CULL));



	/* WaDisableBackToBackFlipFix */

	I915_WRITE(IVB_CHICKEN3,

		   CHICKEN3_DGMG_REQ_OUT_FIX_DISABLE |

		   CHICKEN3_DGMG_DONE_FIX_DISABLE);
@@ -3616,6 +3617,7 @@ static void valleyview_init_clock_gating(struct drm_device *dev) 
	I915_WRITE(_3D_CHICKEN3,

		   _MASKED_BIT_ENABLE(_3D_CHICKEN_SF_DISABLE_OBJEND_CULL));



	/* WaDisableBackToBackFlipFix */

	I915_WRITE(IVB_CHICKEN3,

		   CHICKEN3_DGMG_REQ_OUT_FIX_DISABLE |

		   CHICKEN3_DGMG_DONE_FIX_DISABLE);