drm/i915/bxt: Enable WaDisableDgMirrorFixInHalfSliceChicken5 for Broxton

Signed-off-by: Nick Hoath <nicholas.hoath@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index cdbdf49..4b0d48b 100644 (file)
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -927,9 +927,10 @@ static int gen9_init_workarounds(struct intel_engine_cs *ring)
        WA_SET_BIT_MASKED(HALF_SLICE_CHICKEN3,
                          GEN9_DISABLE_OCL_OOB_SUPPRESS_LOGIC);
 
-       if (INTEL_REVID(dev) == SKL_REVID_A0 ||
-           INTEL_REVID(dev) == SKL_REVID_B0) {
-               /* WaDisableDgMirrorFixInHalfSliceChicken5:skl */
+       if ((IS_SKYLAKE(dev) && (INTEL_REVID(dev) == SKL_REVID_A0 ||
+           INTEL_REVID(dev) == SKL_REVID_B0)) ||
+           (IS_BROXTON(dev) && INTEL_REVID(dev) < BXT_REVID_B0)) {
+               /* WaDisableDgMirrorFixInHalfSliceChicken5:skl,bxt */
                WA_CLR_BIT_MASKED(GEN9_HALF_SLICE_CHICKEN5,
                                  GEN9_DG_MIRROR_FIX_ENABLE);
        }