[PATCH] drm/xe/wcl: Extend L3bank mask workaround

[Bhadane, Dnyaneshwar]

> -----Original Message-----
> From: Intel-gfx <intel-gfx-bounces at lists.freedesktop.org> On Behalf Of
> Chaitanya Kumar Borah
> Sent: Friday, August 22, 2025 5:55 AM
> To: intel-xe at lists.freedesktop.org; intel-gfx at lists.freedesktop.org
> Cc: Chauhan, Shekhar <shekhar.chauhan at intel.com>; Atwood, Matthew S
> <matthew.s.atwood at intel.com>; Sousa, Gustavo
> <gustavo.sousa at intel.com>; Dugast, Francois <francois.dugast at intel.com>
> Subject: [PATCH] drm/xe/wcl: Extend L3bank mask workaround
> 
> The commit 9ab440a9d042 ("drm/xe/ptl: L3bank mask is not available on the
> media GT") added a workaround to ignore the fuse register that L3 bank
> availability as it did not contain valid values. Same is true for WCL therefore
> extend the workaround to cover it.
> 
> Signed-off-by: Chaitanya Kumar Borah <chaitanya.kumar.borah at intel.com>

I interpret from the WA and PTL description that we don't want to push any value, not even 0s, 
to userspace if the L3 mask is not available for media GT.

LGTM,
Reviewed-by: Dnyaneshwar Bhadane <dnyaneshwar.bhadane at intel.com>

> ---
>  drivers/gpu/drm/xe/xe_wa_oob.rules | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/xe/xe_wa_oob.rules
> b/drivers/gpu/drm/xe/xe_wa_oob.rules
> index 8d0aabab6777..8bef2f567faf 100644
> --- a/drivers/gpu/drm/xe/xe_wa_oob.rules
> +++ b/drivers/gpu/drm/xe/xe_wa_oob.rules
> @@ -48,7 +48,7 @@
>  16023588340	GRAPHICS_VERSION(2001),
> FUNC(xe_rtp_match_not_sriov_vf)
>  14019789679	GRAPHICS_VERSION(1255)
>  		GRAPHICS_VERSION_RANGE(1270, 2004)
> -no_media_l3	MEDIA_VERSION(3000)
> +no_media_l3	MEDIA_VERSION_RANGE(3000, 3002)
>  14022866841	GRAPHICS_VERSION(3000), GRAPHICS_STEP(A0, B0)
>  		MEDIA_VERSION(3000), MEDIA_STEP(A0, B0)
>  16021333562	GRAPHICS_VERSION_RANGE(1200, 1274)
> --
> 2.25.1