Re: [PATCH] drm/xe_pat: Print PAT_ATS during register dump

[Matthew Auld <matthew.auld@intel.com>]

On 31/03/2026 14:43, Zbigniew Kempczyński wrote:
> For Xe2 and beyond we miss printing PAT_ATS register.
> 
> Signed-off-by: Zbigniew Kempczyński <zbigniew.kempczynski@intel.com>
> Cc: Matthew Auld <matthew.auld@intel.com>

Nit: commit title drm/xe/pat:

> ---
>   drivers/gpu/drm/xe/xe_pat.c | 8 ++++++++
>   1 file changed, 8 insertions(+)
> 
> diff --git a/drivers/gpu/drm/xe/xe_pat.c b/drivers/gpu/drm/xe/xe_pat.c
> index 356f53bdb83c..75aaae7b003d 100644
> --- a/drivers/gpu/drm/xe/xe_pat.c
> +++ b/drivers/gpu/drm/xe/xe_pat.c
> @@ -531,6 +531,14 @@ static int xe2_dump(struct xe_gt *gt, struct drm_printer *p)
>   	drm_printf(p, "Page Table Access:\n");
>   	xe->pat.ops->entry_dump(p, "PTA_MODE", pat, false);
>   
> +	if (xe_gt_is_media_type(gt))
> +		pat = xe_mmio_read32(&gt->mmio, XE_REG(_PAT_ATS));
> +	else
> +		pat = xe_gt_mcr_unicast_read_any(gt, XE_REG_MCR(_PAT_ATS));
> +
> +	drm_printf(p, "PCIe ATS/PASID:\n");
> +	xe->pat.ops->entry_dump(p, "PAT_ATS ", pat, false);

Reviewed-by: Matthew Auld <matthew.auld@intel.com>

> +
>   	return 0;
>   }
>