[PATCH] drm/xe/xe2_lpg: Add Wa_16018610683

[Matt Roper]

On Tue, Jan 09, 2024 at 11:25:50AM +0530, Shekhar Chauhan wrote:
> Force max 128KB SLM during WMTP PASS1 Restore.
> 
> BSpec: 70202
> Signed-off-by: Shekhar Chauhan <shekhar.chauhan at intel.com>

Reviewed-by: Matt Roper <matthew.d.roper at intel.com>

> ---
>  drivers/gpu/drm/xe/regs/xe_gt_regs.h | 3 +++
>  drivers/gpu/drm/xe/xe_wa.c           | 5 ++++-
>  2 files changed, 7 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/xe/regs/xe_gt_regs.h b/drivers/gpu/drm/xe/regs/xe_gt_regs.h
> index 6dfad86aaea6..4017319c6300 100644
> --- a/drivers/gpu/drm/xe/regs/xe_gt_regs.h
> +++ b/drivers/gpu/drm/xe/regs/xe_gt_regs.h
> @@ -345,6 +345,9 @@
>  #define ROW_CHICKEN3				XE_REG_MCR(0xe49c, XE_REG_OPTION_MASKED)
>  #define   DIS_FIX_EOT1_FLUSH			REG_BIT(9)
>  
> +#define TDL_TSL_CHICKEN				XE_REG_MCR(0xe4c4, XE_REG_OPTION_MASKED)
> +#define   SLM_WMTP_RESTORE			REG_BIT(11)
> +
>  #define ROW_CHICKEN				XE_REG_MCR(0xe4f0, XE_REG_OPTION_MASKED)
>  #define   UGM_BACKUP_MODE			REG_BIT(13)
>  #define   MDQ_ARBITRATION_MODE			REG_BIT(12)
> diff --git a/drivers/gpu/drm/xe/xe_wa.c b/drivers/gpu/drm/xe/xe_wa.c
> index b77d406e083e..3299130ba10a 100644
> --- a/drivers/gpu/drm/xe/xe_wa.c
> +++ b/drivers/gpu/drm/xe/xe_wa.c
> @@ -455,7 +455,10 @@ static const struct xe_rtp_entry_sr engine_was[] = {
>  			     PPHWSP_CSB_AND_TIMESTAMP_REPORT_DIS,
>  			     XE_RTP_ACTION_FLAG(ENGINE_BASE)))
>  	},
> -
> +	{ XE_RTP_NAME("16018610683"),
> +	  XE_RTP_RULES(GRAPHICS_VERSION(2004), FUNC(xe_rtp_match_first_render_or_compute)),
> +	  XE_RTP_ACTIONS(SET(TDL_TSL_CHICKEN, SLM_WMTP_RESTORE))
> +	},
>  	{}
>  };
>  
> -- 
> 2.34.1
> 

-- 
Matt Roper
Graphics Software Engineer
Linux GPU Platform Enablement
Intel Corporation