[PATCH 1/3] soc: sifive: Add SiFive private L2 cache support

[Eric Lin]

Hi Christophe,

On Sat, Jun 17, 2023 at 3:02 AM Christophe JAILLET
<christophe.jaillet at wanadoo.fr> wrote:
>
> Le 16/06/2023 à 08:32, Eric Lin a écrit :
> > This adds SiFive private L2 cache driver which will show
> > cache config information when booting and add cpu hotplug
> > callback functions.
> >
> > Signed-off-by: Eric Lin <eric.lin-SpMDHPYPyPbQT0dZR+AlfA at public.gmane.org>
> > Signed-off-by: Nick Hu <nick.hu-SpMDHPYPyPbQT0dZR+AlfA at public.gmane.org>
> > Reviewed-by: Zong Li <zong.li-SpMDHPYPyPbQT0dZR+AlfA at public.gmane.org>
>
> [...]
>
> > +static int __init sifive_pl2_cache_init(void)
> > +{
> > +     int ret;
> > +
> > +     ret = cpuhp_setup_state(CPUHP_AP_RISCV_SIFIVE_PL2_ONLINE,
> > +                             "soc/sifive/pl2:online",
> > +                                   sifive_pl2_online_cpu,
> > +                                   sifive_pl2_offline_cpu);
> > +     if (ret < 0) {
> > +             pr_err("Failed to register CPU hotplug notifier %d\n", ret);
> > +             return ret;
> > +     }
> > +
> > +     ret = platform_driver_register(&sifive_pl2_cache_driver);
> > +     if (ret) {
> > +             pr_err("Failed to register sifive_pl2_cache_driver: %d\n", ret);
>
> Blind guess: does cpuhp_remove_state() needs to be called?
>

Yes, I'll fix this in v2. Thanks.

> > +             return ret;
> > +     }
> > +
> > +     sifive_pl2_pm_init();
> > +
> > +     return ret;
>
> If you send a v2, return 0; would be slighly nicer here.
>

OK, I'll fix it in v2.
Thanks for the review.

Best regards,
Eric Lin

> CJ
>
> > +}
>
> [...]
>