Re: [PATCH v2] drm/xe: Extend Wa_13011645652 to PTL-H, WCL

[John Harrison <john.c.harrison@intel.com>]

On 9/3/2025 12:00 PM, Julia Filipchuk wrote:
> Expand workaround to additional graphics architectures.
>
> Fixes: dddc53806dd2 ("drm/xe/ptl: Apply Wa_13011645652")
Does this count as a fix? If we are just extending a workaround to apply 
to more platforms, that is not a bug fix of the workaround. It is more 
of a new platform enabling patch. Indeed, if you send this patch as a 
backported fix to older kernels, those older trees might not support the 
new platform. Which is therefore unnecessary backport work and extra 
confusion because the tree is now claiming to support a platform which 
it actually does not.

John.

> Cc: Vinay Belgaumkar <vinay.belgaumkar@intel.com>
> Cc: Stuart Summers <stuart.summers@intel.com>
> Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
> Cc: Lucas De Marchi <lucas.demarchi@intel.com>
> Cc: "Thomas Hellström" <thomas.hellstrom@linux.intel.com>
> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
> Cc: intel-xe@lists.freedesktop.org
> Cc: <stable@vger.kernel.org> # v6.15+
> Signed-off-by: Julia Filipchuk <julia.filipchuk@intel.com>
> ---
>   drivers/gpu/drm/xe/xe_wa_oob.rules | 3 ++-
>   1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/xe/xe_wa_oob.rules b/drivers/gpu/drm/xe/xe_wa_oob.rules
> index e990f20eccfe..710f4423726c 100644
> --- a/drivers/gpu/drm/xe/xe_wa_oob.rules
> +++ b/drivers/gpu/drm/xe/xe_wa_oob.rules
> @@ -30,7 +30,8 @@
>   16022287689	GRAPHICS_VERSION(2001)
>   		GRAPHICS_VERSION(2004)
>   13011645652	GRAPHICS_VERSION(2004)
> -		GRAPHICS_VERSION(3001)
> +		GRAPHICS_VERSION_RANGE(3000, 3001)
> +		GRAPHICS_VERSION(3003)
>   14022293748	GRAPHICS_VERSION_RANGE(2001, 2002)
>   		GRAPHICS_VERSION(2004)
>   		GRAPHICS_VERSION_RANGE(3000, 3001)