mirror of https://gitee.com/openkylin/linux.git
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 <damien.lespiau@intel.com> Cc: Paulo Zanoni <paulo.r.zanoni@intel.com> Reviewed-by: Paulo Zanoni <paulo.r.zanonI@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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@ -3474,10 +3474,6 @@ static void haswell_init_clock_gating(struct drm_device *dev)
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I915_WRITE(_3D_CHICKEN3,
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I915_WRITE(_3D_CHICKEN3,
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_MASKED_BIT_ENABLE(_3D_CHICKEN_SF_DISABLE_OBJEND_CULL));
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_MASKED_BIT_ENABLE(_3D_CHICKEN_SF_DISABLE_OBJEND_CULL));
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I915_WRITE(IVB_CHICKEN3,
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CHICKEN3_DGMG_REQ_OUT_FIX_DISABLE |
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CHICKEN3_DGMG_DONE_FIX_DISABLE);
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/* Apply the WaDisableRHWOOptimizationForRenderHang workaround. */
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/* Apply the WaDisableRHWOOptimizationForRenderHang workaround. */
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I915_WRITE(GEN7_COMMON_SLICE_CHICKEN1,
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I915_WRITE(GEN7_COMMON_SLICE_CHICKEN1,
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GEN7_CSC1_RHWO_OPT_DISABLE_IN_RCC);
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GEN7_CSC1_RHWO_OPT_DISABLE_IN_RCC);
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