Re: [PATCH 08/10] drm/i915: gen 9 h/w w/a (Wa4x4STCOptimizationDisable)

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On Thu, Feb 05, 2015 at 10:47:23AM +0000, Nick Hoath wrote:
> From: "Hoath, Nicholas" <nicholas.hoath@xxxxxxxxx>
> 
> Move Wa4x4STCOptimizationDisable to gen9_init_workarounds
> 
> v1: rebase
> 
> Signed-off-by: Nick Hoath <nicholas.hoath@xxxxxxxxx>

Reviewed-by: Damien Lespiau <damien.lespiau@xxxxxxxxx>

-- 
Damien

> ---
>  drivers/gpu/drm/i915/intel_pm.c         | 4 ----
>  drivers/gpu/drm/i915/intel_ringbuffer.c | 3 +++
>  2 files changed, 3 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
> index 06d67fd..30071ff 100644
> --- a/drivers/gpu/drm/i915/intel_pm.c
> +++ b/drivers/gpu/drm/i915/intel_pm.c
> @@ -64,10 +64,6 @@ static void gen9_init_clock_gating(struct drm_device *dev)
>  		I915_WRITE(GEN8_UCGCTL6, I915_READ(GEN8_UCGCTL6) |
>  			   GEN8_SDEUNIT_CLOCK_GATE_DISABLE);
>  	}
> -
> -	/* Wa4x4STCOptimizationDisable:skl */
> -	I915_WRITE(CACHE_MODE_1,
> -		   _MASKED_BIT_ENABLE(GEN8_4x4_STC_OPTIMIZATION_DISABLE));
>  }
>  
>  static void i915_pineview_get_mem_freq(struct drm_device *dev)
> diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
> index 884f319..066b63d 100644
> --- a/drivers/gpu/drm/i915/intel_ringbuffer.c
> +++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
> @@ -902,6 +902,9 @@ static int gen9_init_workarounds(struct intel_engine_cs *ring)
>  				  GEN9_ENABLE_YV12_BUGFIX);
>  	}
>  
> +	/* Wa4x4STCOptimizationDisable:skl */
> +	WA_SET_BIT_MASKED(CACHE_MODE_1, GEN8_4x4_STC_OPTIMIZATION_DISABLE);
> +
>  	return 0;
>  }
>  
> -- 
> 2.1.1
> 
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