drm/i915: Drop WaDisableRCZUnitClockGating:hsw
WaDisableRCZUnitClockGating was needed with early HSW steppings only.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 35e4bbb..15815bd 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -4765,11 +4765,6 @@
ilk_init_lp_watermarks(dev);
- /* According to the spec, bit 13 (RCZUNIT) must be set on IVB.
- * This implements the WaDisableRCZUnitClockGating:hsw workaround.
- */
- I915_WRITE(GEN6_UCGCTL2, GEN6_RCZUNIT_CLOCK_GATE_DISABLE);
-
/* WaApplyL3ControlAndL3ChickenMode:hsw */
I915_WRITE(GEN7_L3CNTLREG1,
GEN7_WA_FOR_GEN7_L3_CONTROL);