[Intel-xe] [PATCH v2 3/6] drm/xe/pat: trim the tgl PAT table

[Matt Roper]

On Thu, Sep 14, 2023 at 04:31:16PM +0100, Matthew Auld wrote:
> We don't seem to use the 4-7 pat indexes, even though they are defined
> by the HW. In the next patch userspace will be able to directly set the
> pat_index as part of vm_bind and we don't want to allow setting 4-7.
> Simplest is to just ignore them here.
> 
> Suggested-by: Matt Roper <matthew.d.roper at intel.com>
> Signed-off-by: Matthew Auld <matthew.auld at intel.com>
> Cc: Pallavi Mishra <pallavi.mishra at intel.com>
> Cc: Lucas De Marchi <lucas.demarchi at intel.com>

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

> ---
>  drivers/gpu/drm/xe/xe_pat.c | 4 ----
>  1 file changed, 4 deletions(-)
> 
> diff --git a/drivers/gpu/drm/xe/xe_pat.c b/drivers/gpu/drm/xe/xe_pat.c
> index aa2c5eb88266..fb490982fd99 100644
> --- a/drivers/gpu/drm/xe/xe_pat.c
> +++ b/drivers/gpu/drm/xe/xe_pat.c
> @@ -38,10 +38,6 @@ static const u32 tgl_pat_table[] = {
>  	[1] = TGL_PAT_WC,
>  	[2] = TGL_PAT_WT,
>  	[3] = TGL_PAT_UC,
> -	[4] = TGL_PAT_WB,
> -	[5] = TGL_PAT_WB,
> -	[6] = TGL_PAT_WB,
> -	[7] = TGL_PAT_WB,
>  };
>  
>  static const u32 pvc_pat_table[] = {
> -- 
> 2.41.0
> 

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