[Intel-gfx] [PATCH 1/3] drm/i915: Add ECOBITS_SNB_BIT

[Imre Deak]

On Thu, 2013-04-04 at 15:13 +0300, ville.syrjala at linux.intel.com wrote:
> From: Ville Syrjälä <ville.syrjala at linux.intel.com>
> 
> GAC_ECO_BITS has a bit similar to GAM_ECOCHK's ECOCHK_SNB_BIT. Add
> the define, and enable it on SNB.
> 
> Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>

On the series:
Reviewed-by: Imre Deak <imre.deak at intel.com>

> ---
>  drivers/gpu/drm/i915/i915_gem_gtt.c | 3 ++-
>  drivers/gpu/drm/i915/i915_reg.h     | 1 +
>  2 files changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
> index 24a23b3..593137b 100644
> --- a/drivers/gpu/drm/i915/i915_gem_gtt.c
> +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
> @@ -312,7 +312,8 @@ void i915_gem_init_ppgtt(struct drm_device *dev)
>  		uint32_t ecochk, gab_ctl, ecobits;
>  
>  		ecobits = I915_READ(GAC_ECO_BITS);
> -		I915_WRITE(GAC_ECO_BITS, ecobits | ECOBITS_PPGTT_CACHE64B);
> +		I915_WRITE(GAC_ECO_BITS, ecobits | ECOBITS_SNB_BIT |
> +					 ECOBITS_PPGTT_CACHE64B);
>  
>  		gab_ctl = I915_READ(GAB_CTL);
>  		I915_WRITE(GAB_CTL, gab_ctl | GAB_CTL_CONT_AFTER_PAGEFAULT);
> diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
> index 058686c..4b8fd4d 100644
> --- a/drivers/gpu/drm/i915/i915_reg.h
> +++ b/drivers/gpu/drm/i915/i915_reg.h
> @@ -127,6 +127,7 @@
>  #define   ECOCHK_PPGTT_CACHE4B		(0x0<<3)
>  
>  #define GAC_ECO_BITS			0x14090
> +#define   ECOBITS_SNB_BIT		(1<<13)
>  #define   ECOBITS_PPGTT_CACHE64B	(3<<8)
>  #define   ECOBITS_PPGTT_CACHE4B		(0<<8)
>