Re: [RFC PATCH] ARM: mach-shmobile: Parse DT to get ARCH timer memory region

[Oleksandr]

On 13.05.19 18:13, Geert Uytterhoeven wrote:
> Hi Oleksandr,

Hi Geert


> > So, if the DT bindings for the counter module is not an option (if I
> > correctly understood a discussion pointed by Geert in another letter),
> > we should probably prevent all timer code here from being executed if
> > PSCI is in use.
> > What I mean is to return to [2], but with the modification to use
> > psci_smp_available() helper as an indicator of PSCI usage.
> >
> > Julien, Geert, what do you think?
> Yes, that sounds good to me.
>
> Note that psci_smp_available() seems to return false if CONFIG_SMP=n,
> so checking for that is not sufficient to avoid crashes when running a
> uniprocessor kernel on a PSCI-enabled system.

Indeed, you are right.


Nothing than just check for psci_ops.cpu_on == NULL directly comes to 
mind...

Have already checked with CONFIG_SMP=n, it works.

Sounds ok?


--
Regards,

Oleksandr Tyshchenko