drm/i915/skl WaDisableSbeCacheDispatchPortSharing

Add WaDisableSbeCacheDispatchPortSharing:skl

Cc: Arun Siluvery <arun.siluvery@linux.intel.com>
Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
Reviewed-by: Arun Siluvery <arun.siluvery@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

1 files changed, 7 insertions, 0 deletions

diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index 1c14233d179f..1a10358d4c48 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -1059,6 +1059,13 @@ static int skl_init_workarounds(struct intel_engine_cs *ring)
                                   HDC_FENCE_DEST_SLM_DISABLE |
                                   HDC_BARRIER_PERFORMANCE_DISABLE);
 
+        /* WaDisableSbeCacheDispatchPortSharing:skl */
+        if (INTEL_REVID(dev) <= SKL_REVID_F0) {
+                WA_SET_BIT_MASKED(
+                        GEN7_HALF_SLICE_CHICKEN1,
+                        GEN7_SBE_SS_CACHE_DISPATCH_PORT_SHARING_DISABLE);
+        }
+
         return skl_tune_iz_hashing(ring);
 }