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

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

On Fri, Oct 21, 2022 at 3:28 PM Zong Li <zong.li@sifive.com> wrote:
>
> 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
> >

Hi all,
Because I didn't get any feedback here, could I know whether this
patch is good for all? Are you all willing to help me to pick it up if
it looks good to you? Thanks a lot :)

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