diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 41c1b79959f748ccc47f591bab4b7c7d679c909e..f2a40565ef980a56ebf4d07e65ddd49542115aec 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -5375,7 +5375,7 @@ static void gen8_init_clock_gating(struct drm_device *dev)
 	I915_WRITE(GAMTARBMODE, _MASKED_BIT_ENABLE(ARB_MODE_BWGTLB_DISABLE));
 
 	I915_WRITE(_3D_CHICKEN3,
-		   _3D_CHICKEN_SDE_LIMIT_FIFO_POLY_DEPTH(2));
+		   _MASKED_BIT_ENABLE(_3D_CHICKEN_SDE_LIMIT_FIFO_POLY_DEPTH(2)));
 
 	I915_WRITE(COMMON_SLICE_CHICKEN2,
 		   _MASKED_BIT_ENABLE(GEN8_CSC2_SBE_VUE_CACHE_CONSERVATIVE));