From 62cb944fa24728d164497834e4181ba0d266b32b Mon Sep 17 00:00:00 2001 From: Damien Lespiau Date: Thu, 4 Oct 2012 18:49:23 +0100 Subject: [PATCH] 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: Damien Lespiau Reviewed-by: Paulo Zanoni Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/intel_pm.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index b5b772af6b81..0dd2ca707d0a 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -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);