On 07/05/2017 06:02 PM, Rodrigo Vivi wrote:
WA to disable replay buffer destination buffer arbitration optimization.
Same Wa on previous platforms has a different name: WaToEnableHwFixForPushConstHWBug
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx>
Reviewed-by: Mika Kuoppala <mika.kuoppala@xxxxxxxxx>
---
drivers/gpu/drm/i915/intel_engine_cs.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/gpu/drm/i915/intel_engine_cs.c b/drivers/gpu/drm/i915/intel_engine_cs.c
index c520a41..bc14f0b 100644
--- a/drivers/gpu/drm/i915/intel_engine_cs.c
+++ b/drivers/gpu/drm/i915/intel_engine_cs.c
@@ -1072,6 +1072,10 @@ static int cnl_init_workarounds(struct intel_engine_cs *engine)
struct drm_i915_private *dev_priv = engine->i915;
int ret;
+ /* WaDisableReplayBufferBankArbitrationOptimization:cnl */
+ WA_SET_BIT_MASKED(COMMON_SLICE_CHICKEN2,
+ GEN8_SBE_DISABLE_REPLAY_BUF_OPTIMIZATION);
+
This should be from B0 onwards. For A0, there is a 3D workaround
(WaInsertDummyPushConstPs)
/* WaInPlaceDecompressionHang:cnl */
WA_SET_BIT(GEN9_GAMT_ECO_REG_RW_IA,
GAMT_ECO_ENABLE_IN_PLACE_DECOMPRESS);
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