From: Robert Beckett <robert.beck...@intel.com>
WaDisableSTUnitPowerOptimization:skl,bxt
Signed-off-by: Robert Beckett <robert.beck...@intel.com>
Signed-off-by: Arun Siluvery <arun.siluv...@linux.intel.com>
---
drivers/gpu/drm/i915/i915_reg.h | 3 +++
drivers/gpu/drm/i915/intel_ringbuffer.c | 3 +++
2 files changed, 6 insertions(+)
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 2c719b0..9b47dd4 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -6940,6 +6940,9 @@ enum skl_disp_power_wells {
#define HSW_ROW_CHICKEN3 0xe49c
#define HSW_ROW_CHICKEN3_L3_GLOBAL_ATOMICS_DISABLE (1 << 6)
+#define HALF_SLICE_CHICKEN2 0xe180
+#define GEN8_ST_PO_DISABLE (1<<13)
+
#define HALF_SLICE_CHICKEN3 0xe184
#define HSW_SAMPLE_C_PERFORMANCE (1<<9)
#define GEN8_CENTROID_PIXEL_OPT_DIS (1<<8)
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c
b/drivers/gpu/drm/i915/intel_ringbuffer.c
index 0e1ed0b..028c099 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -990,6 +990,9 @@ static int gen9_init_workarounds(struct intel_engine_cs
*ring)
GEN8_SAMPLER_POWER_BYPASS_DIS);
}
+ /* WaDisableSTUnitPowerOptimization:skl,bxt */
+ WA_SET_BIT_MASKED(HALF_SLICE_CHICKEN2, GEN8_ST_PO_DISABLE);
+
return 0;
}
--
1.9.1
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