* Thomas Gleixner <[email protected]> wrote:
> On Wed, 2006-11-08 at 13:09 +0100, Ingo Molnar wrote:
> > one question:
> >
> > > + long tapic = apic_read(APIC_TMCCT);
> > > + unsigned long pm = acpi_pm_read_early();
> >
> > is this function call safe if the box has no pm-timer?
>
> That's in the pm-timer-allow-early-access.patch:
>
> Subject: pmtimer: Allow early access to pm timer
>
> +static inline u32 acpi_pm_read_early(void)
> +{
> + if (!pmtmr_ioport)
> + return 0;
> + /* mask the output to 24 bits */
> + return acpi_pm_read_verified();
> +}
>
> If pmtmr is not available, the function returns 0, so the resulting
> delta is 0 and therefor ignored. Same applies, when PMTIMER is
> disabled in the config.
ok, looks good.
Ingo
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