Signed-off-by: Nick Hoath <nicholas.hoath@xxxxxxxxx>
---
drivers/gpu/drm/i915/i915_reg.h | 1 +
drivers/gpu/drm/i915/intel_ringbuffer.c | 2 ++
2 files changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 7f9150b..0326399 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -6216,6 +6216,7 @@ enum skl_disp_power_wells {
#define GEN9_CCS_TLB_PREFETCH_ENABLE (1<<3)
#define GEN8_ROW_CHICKEN 0xe4f0
+#define ENABLE_FLOW_CONTROL_WRITES (1<<15)
#define PARTIAL_INSTRUCTION_SHOOTDOWN_DISABLE (1<<8)
#define STALL_DOP_GATING_DISABLE (1<<5)
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index 2060610..36df3d4 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -950,7 +950,9 @@ static int gen9_init_workarounds(struct intel_engine_cs *ring)
struct drm_i915_private *dev_priv = dev->dev_private;
/* WaDisablePartialInstShootdown:skl */
+ /* WaClearFlowControlGpgpuContextSave:skl */
WA_SET_BIT_MASKED(GEN8_ROW_CHICKEN,
+ ENABLE_FLOW_CONTROL_WRITES |
PARTIAL_INSTRUCTION_SHOOTDOWN_DISABLE);
/* Syncing dependencies between camera and graphics */
--
2.1.1
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