From: Damien Lespiau <damien.lespiau at intel.com> For the next person that checks these kind of things, without having to dig up the register definition. Signed-off-by: Damien Lespiau <damien.lespiau at intel.com> --- drivers/gpu/drm/i915/intel_pm.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 62fe848..3d219ec 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -3541,6 +3541,7 @@ 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); @@ -3621,6 +3622,7 @@ 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); -- 1.7.7.5