Re: [PATCH] riscv: Get level 3 cache's information

[Zong Li <zong.li@sifive.com>]

On Fri, Oct 21, 2022 at 3:23 PM Zong Li <zong.li@sifive.com> wrote:
>
> RISC-V architecture extends the cache information for level 3 cache
> in AUX vector in Linux v.6.1-rc1. This patch supports sysconf to get
> the level 3 cache information.
> ---
>  sysdeps/unix/sysv/linux/riscv/sysconf.c | 7 +++++++
>  1 file changed, 7 insertions(+)
>
> diff --git a/sysdeps/unix/sysv/linux/riscv/sysconf.c b/sysdeps/unix/sysv/linux/riscv/sysconf.c
> index b768ebf781..4772a9fc11 100644
> --- a/sysdeps/unix/sysv/linux/riscv/sysconf.c
> +++ b/sysdeps/unix/sysv/linux/riscv/sysconf.c
> @@ -90,6 +90,13 @@ __sysconf (int name)
>         return sysconf_get_cache_associativity (AT_L2_CACHEGEOMETRY);
>        case _SC_LEVEL2_CACHE_LINESIZE:
>         return sysconf_get_cache_linesize (AT_L2_CACHEGEOMETRY);
> +      case _SC_LEVEL3_CACHE_SIZE:
> +       return sysconf_get_cache_size (AT_L3_CACHESIZE);
> +      case _SC_LEVEL3_CACHE_ASSOC:
> +       return sysconf_get_cache_associativity (AT_L3_CACHEGEOMETRY);
> +      case _SC_LEVEL3_CACHE_LINESIZE:
> +       return sysconf_get_cache_linesize (AT_L3_CACHEGEOMETRY);
> +
>        default:
>         return linux_sysconf (name);
>      }
> --
> 2.17.1
>

Sorry for missing libc-alpha. Add libc-alpha in this loop.