From a9627b881680c4419c61e70f60e8f957d8ef225c Mon Sep 17 00:00:00 2001 From: Damien Lespiau Date: Thu, 4 Oct 2012 18:49:24 +0100 Subject: [PATCH] drm/i915: Remove the WaDisableBackToBackFlipFix w/a for Haswell This workaround is only valid for IVB and VLV and the write triggers an error on HSW. Signed-off-by: Damien Lespiau Cc: Paulo Zanoni Reviewed-by: Paulo Zanoni Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/intel_pm.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 0dd2ca707d0a..eb757e5f2d87 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -3474,10 +3474,6 @@ static void haswell_init_clock_gating(struct drm_device *dev) 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); - /* Apply the WaDisableRHWOOptimizationForRenderHang workaround. */ I915_WRITE(GEN7_COMMON_SLICE_CHICKEN1, GEN7_CSC1_RHWO_OPT_DISABLE_IN_RCC);