Re: [PATCH 4/4] alpha: default NR_CPUS to 32 for Wildfire

[Magnus Lindholm]

Hi Matt,

On Thu, Oct 1, 2026 at 6:50 PM Matt Turner <mattst88@xxxxxxxxx> wrote:
>
> The AlphaServer GS320 has up to 32 CPUs and the Wildfire code handles
> all eight QBBs, but a Wildfire-only kernel defaults to NR_CPUS=4 and
> ignores the rest unless the user raises it by hand.
>
> Signed-off-by: Matt Turner <mattst88@xxxxxxxxx>
> ---
>  arch/alpha/Kconfig | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git ./arch/alpha/Kconfig ./arch/alpha/Kconfig
> index 0fc61d986a7d..b5b02bb42aca 100644
> --- ./arch/alpha/Kconfig
> +++ ./arch/alpha/Kconfig
> @@ -483,8 +483,8 @@ config NR_CPUS
>         int "Maximum number of CPUs (2-32)"
>         range 2 32
>         depends on SMP
> -       default "32" if ALPHA_GENERIC || ALPHA_MARVEL
> -       default "4" if !ALPHA_GENERIC && !ALPHA_MARVEL
> +       default "32" if ALPHA_GENERIC || ALPHA_MARVEL || ALPHA_WILDFIRE
> +       default "4"
>         help
>           The kernel supports at most 32 CPUs. Only Marvel and Wildfire
>           systems have more than 4.
> --
> 2.54.0
>

Thanks,

See reply to patch 1/4 for details.

Tested-by: Magnus Lindholm <linmag7@xxxxxxxxx>
Reviewed-by: Magnus Lindholm <linmag7@xxxxxxxxx>