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-rw-r--r--drivers/gpu/drm/i915/i915_reg.h2
-rw-r--r--drivers/gpu/drm/i915/intel_pm.c3
2 files changed, 2 insertions, 3 deletions
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 558d3dd5a039..60ef5406fe57 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -5718,7 +5718,7 @@ enum skl_disp_power_wells {
#define HSW_NDE_RSTWRN_OPT 0x46408
#define RESET_PCH_HANDSHAKE_ENABLE (1<<4)
-#define FF_SLICE_CS_CHICKEN2 0x02e4
+#define FF_SLICE_CS_CHICKEN2 0x20e4
#define GEN9_TSG_BARRIER_ACK_DISABLE (1<<8)
/* GEN7 chicken */
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 9e3bfff2d845..7006f94b94c1 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -88,8 +88,7 @@ static void skl_init_clock_gating(struct drm_device *dev)
/* WaDisableChickenBitTSGBarrierAckForFFSliceCS:skl */
I915_WRITE(FF_SLICE_CS_CHICKEN2,
- I915_READ(FF_SLICE_CS_CHICKEN2) |
- GEN9_TSG_BARRIER_ACK_DISABLE);
+ _MASKED_BIT_ENABLE(GEN9_TSG_BARRIER_ACK_DISABLE));
}
if (INTEL_REVID(dev) <= SKL_REVID_E0)