[PATCH 6/8] drm/i915/skl: Add GEN8_L3SQCREG4 to HW whitelist

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Required for WaDisableLSQCROPERFforOCL:skl

Signed-off-by: Arun Siluvery <arun.siluvery@xxxxxxxxxxxxxxx>
---
 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 5eb4eea..b8dbd2c 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -1097,6 +1097,11 @@ static int skl_init_workarounds(struct intel_engine_cs *ring)
 			GEN7_HALF_SLICE_CHICKEN1,
 			GEN7_SBE_SS_CACHE_DISPATCH_PORT_SHARING_DISABLE);
 
+	/* WaDisableLSQCROPERFforOCL:skl */
+	ret = wa_ring_whitelist_reg(ring, GEN8_L3SQCREG4);
+	if (ret)
+		return ret;
+
 	return skl_tune_iz_hashing(ring);
 }
 
-- 
1.9.1

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