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drm/i915/skl: Implement WaBarrierPerformanceFixDisable
[deliverable/linux.git]
/
drivers
/
gpu
/
drm
/
i915
/
intel_ringbuffer.c
diff --git
a/drivers/gpu/drm/i915/intel_ringbuffer.c
b/drivers/gpu/drm/i915/intel_ringbuffer.c
index 3c66d80d050a093e67ce83746faae2b5a2fb68de..dde0bec7aefdd52820a04edb9347c3bf0d1afe41 100644
(file)
--- a/
drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/
drivers/gpu/drm/i915/intel_ringbuffer.c
@@
-934,6
+934,13
@@
static int chv_init_workarounds(struct intel_engine_cs *ring)
GEN6_WIZ_HASHING_MASK,
GEN6_WIZ_HASHING_16x4);
GEN6_WIZ_HASHING_MASK,
GEN6_WIZ_HASHING_16x4);
+ if (INTEL_REVID(dev) == SKL_REVID_C0 ||
+ INTEL_REVID(dev) == SKL_REVID_D0)
+ /* WaBarrierPerformanceFixDisable:skl */
+ WA_SET_BIT_MASKED(HDC_CHICKEN0,
+ HDC_FENCE_DEST_SLM_DISABLE |
+ HDC_BARRIER_PERFORMANCE_DISABLE);
+
return 0;
}
return 0;
}
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