[Intel-gfx] [PATCH 10/12] drm/i915/skl: Remove WaDisableVFUnitClockGating

[Ville Syrjälä]

On Fri, Sep 25, 2015 at 02:33:44PM +0100, Arun Siluvery wrote:
> Dropping it because it is for pre-production stepping, also removed
> bit definition in i915_reg.h as it is not used anywhere else.
> 
> Signed-off-by: Arun Siluvery <arun.siluvery at linux.intel.com>
> ---
>  drivers/gpu/drm/i915/i915_reg.h | 1 -
>  drivers/gpu/drm/i915/intel_pm.c | 6 ------
>  2 files changed, 7 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
> index ef3d71f..b510fdc 100644
> --- a/drivers/gpu/drm/i915/i915_reg.h
> +++ b/drivers/gpu/drm/i915/i915_reg.h
> @@ -6688,7 +6688,6 @@ enum skl_disp_power_wells {
>  # define GEN6_CSUNIT_CLOCK_GATE_DISABLE			(1 << 7)
>  
>  #define GEN6_UCGCTL2				0x9404
> -# define GEN6_VFUNIT_CLOCK_GATE_DISABLE			(1 << 31)

Again, I would keep the define.

>  # define GEN7_VDSUNIT_CLOCK_GATE_DISABLE		(1 << 30)
>  # define GEN7_TDLUNIT_CLOCK_GATE_DISABLE		(1 << 22)
>  # define GEN6_RCZUNIT_CLOCK_GATE_DISABLE		(1 << 13)
> diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
> index 65c60bc..88acb3e 100644
> --- a/drivers/gpu/drm/i915/intel_pm.c
> +++ b/drivers/gpu/drm/i915/intel_pm.c
> @@ -75,12 +75,6 @@ static void skl_init_clock_gating(struct drm_device *dev)
>  
>  	gen9_init_clock_gating(dev);
>  
> -	if (INTEL_REVID(dev) <= SKL_REVID_B0) {
> -		/* WaDisableVFUnitClockGating:skl */
> -		I915_WRITE(GEN6_UCGCTL2, I915_READ(GEN6_UCGCTL2) |
> -			   GEN6_VFUNIT_CLOCK_GATE_DISABLE);
> -	}
> -

Reviewed-by: Ville Syrjälä <ville.syrjala at linux.intel.com>

>  	if (INTEL_REVID(dev) <= SKL_REVID_D0) {
>  		/* WaDisableHDCInvalidation:skl */
>  		I915_WRITE(GAM_ECOCHK, I915_READ(GAM_ECOCHK) |
> -- 
> 1.9.1
> 
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-- 
Ville Syrjälä
Intel OTC