drm/i915/bdw: Add WaHdcDisableFetchWhenMasked

We already have it for chv, but was missing for bdw.

Signed-off-by: Michel Thierry <michel.thierry@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.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 79b4ca5dc65f291067554e6a40e0ec13ce69a9b8..f52101521653a2ffb0a3ff10f61020de9932a44f 100644 (file)
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -766,9 +766,11 @@ static int bdw_init_workarounds(struct intel_engine_cs *ring)
         * workaround for for a possible hang in the unlikely event a TLB
         * invalidation occurs during a PSD flush.
         */
+       /* WaHdcDisableFetchWhenMasked:bdw */
        /* WaDisableFenceDestinationToSLM:bdw (GT3 pre-production) */
        WA_SET_BIT_MASKED(HDC_CHICKEN0,
                          HDC_FORCE_NON_COHERENT |
+                         HDC_DONOT_FETCH_MEM_WHEN_MASKED |
                          (IS_BDW_GT3(dev) ? HDC_FENCE_DEST_SLM_DISABLE : 0));
 
        /* Wa4x4STCOptimizationDisable:bdw */