Re: [PATCH 1/3] drm/xe/tuning: Stop applying CCCHKNREG1 tuning from Xe3p onward

[Gustavo Sousa <gustavo.sousa@intel.com>]

Matt Roper <matthew.d.roper@intel.com> writes:

> Whereas the tuning guide gave guidance on adjusting various CCCHKNREG1
> on past platforms, starting from Xe3p the guidance is "Leave register at
> HW default settings."  Set a version range upper bound of "34.99" so
> that the current programming will stop being applied on any Xe3p
> platforms that have graphics version 35.
>
> Bspec: 72161
> Signed-off-by: Matt Roper <matthew.d.roper@intel.com>

Reviewed-by: Gustavo Sousa <gustavo.sousa@intel.com>

> ---
>  drivers/gpu/drm/xe/xe_tuning.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/xe/xe_tuning.c b/drivers/gpu/drm/xe/xe_tuning.c
> index f8de6a4bf189..ea48e2a60fcd 100644
> --- a/drivers/gpu/drm/xe/xe_tuning.c
> +++ b/drivers/gpu/drm/xe/xe_tuning.c
> @@ -43,7 +43,7 @@ static const struct xe_rtp_entry_sr gt_tunings[] = {
>  				   REG_FIELD_PREP(L3_PWM_TIMER_INIT_VAL_MASK, 0x7f)))
>  	},
>  	{ XE_RTP_NAME("Tuning: Compression Overfetch"),
> -	  XE_RTP_RULES(GRAPHICS_VERSION_RANGE(2001, XE_RTP_END_VERSION_UNDEFINED),
> +	  XE_RTP_RULES(GRAPHICS_VERSION_RANGE(2001, 3499),
>  		       FUNC(xe_rtp_match_has_flat_ccs)),
>  	  XE_RTP_ACTIONS(CLR(CCCHKNREG1, ENCOMPPERFFIX),
>  			 SET(CCCHKNREG1, L3CMPCTRL))
>
> -- 
> 2.53.0