[PATCH 16/30] drm/i915: WaDisableRCCUnitClockGating isn't applicaple to VLV

ville.syrjala
2013-07-05T13:49:47Z

WaDisableRCCUnitClockGating is only relevant for SNB.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
---
drivers/gpu/drm/i915/intel_pm.c | 6 +-----
1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 576f648..82665d5 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -4876,9 +4876,6 @@ static void valleyview_init_clock_gating(struct drm_device *dev)
* Sanctuary and Tropics, and apparently anything else with
* alpha test or pixel discard.
*
- * According to the spec, bit 11 (RCCUNIT) must also be set,
- * but we didn't debug actual testcases to find it out.
- *
* According to the spec, bit 13 (RCZUNIT) must be set on IVB.
* This implements the WaDisableRCZUnitClockGating:vlv workaround.
*
@@ -4889,8 +4886,7 @@ static void valleyview_init_clock_gating(struct drm_device *dev)
GEN7_VDSUNIT_CLOCK_GATE_DISABLE |
GEN7_TDLUNIT_CLOCK_GATE_DISABLE |
GEN6_RCZUNIT_CLOCK_GATE_DISABLE |
- GEN6_RCPBUNIT_CLOCK_GATE_DISABLE |
- GEN6_RCCUNIT_CLOCK_GATE_DISABLE);
+ GEN6_RCPBUNIT_CLOCK_GATE_DISABLE);

/* WaDisableL3Bank2xClockGate:vlv */
I915_WRITE(GEN7_UCGCTL4, GEN7_L3BANK2X_CLOCK_GATE_DISABLE);