[Intel-gfx] [PATCH 19/24] drm/i915/kbl: Add WaDisableSbeCacheDispatchPortSharing

[Mika Kuoppala]

This is needed for all kbl revision.

v2: Don't add revid checks to generic gen9 init (Arun)

References: HSD#2135593
Signed-off-by: Mika Kuoppala <mika.kuoppala at intel.com>
---
 drivers/gpu/drm/i915/intel_ringbuffer.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index b7b36c1cfdc3..ec19fe1f914a 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -1224,6 +1224,11 @@ static int kbl_init_workarounds(struct intel_engine_cs *engine)
 	/* WaDisableGafsUnitClkGating:kbl */
 	WA_SET_BIT(GEN8_CS_CHICKEN2, (1 << 1));
 
+	/* WaDisableSbeCacheDispatchPortSharing:kbl */
+	WA_SET_BIT_MASKED(
+		GEN7_HALF_SLICE_CHICKEN1,
+		GEN7_SBE_SS_CACHE_DISPATCH_PORT_SHARING_DISABLE);
+
 	/* WaDisableLSQCROPERFforOCL:kbl */
 	ret = wa_ring_whitelist_reg(engine, GEN8_L3SQCREG4);
 	if (ret)
-- 
2.5.0