From: Tom O'Rourke <Tom.O'Rourke@xxxxxxxxx>
In gen8_enable_rps, don't write CHV registers unless IS_CHERRYVIEW.
Signed-off-by: Tom O'Rourke <Tom.O'Rourke@xxxxxxxxx>
---
drivers/gpu/drm/i915/intel_pm.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index d9c5918..3d3e402 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -3522,8 +3522,10 @@ static void gen8_enable_rps(struct drm_device *dev)
I915_WRITE(GEN6_RP_IDLE_HYSTERSIS, 10);
/* WaDisablePwrmtrEvent:chv (pre-production hw) */
- I915_WRITE(0xA80C, I915_READ(0xA80C) & 0x00ffffff);
- I915_WRITE(0xA810, I915_READ(0xA810) & 0xffffff00);
+ if (IS_CHERRYVIEW(dev)) {
+ I915_WRITE(0xA80C, I915_READ(0xA80C) & 0x00ffffff);
+ I915_WRITE(0xA810, I915_READ(0xA810) & 0xffffff00);
+ }
/* 5: Enable RPS */
I915_WRITE(GEN6_RP_CONTROL,
--
1.7.9.5
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