Re: [PATCH v2 1/2] platform/x86: Add support for Uncore frequency control

From: Pandruvada, Srinivas
Date: Mon Jan 13 2020 - 13:03:06 EST


Hi Chenyu,

Thanks for the pointing.

On Mon, 2020-01-13 at 15:00 +0800, Yu Chen wrote:
> Hi Srinivas,
> On Mon, Jan 13, 2020 at 11:59 AM Srinivas Pandruvada
> <srinivas.pandruvada@xxxxxxxxxxxxxxx> wrote:
> > +
> > +/* Common function to set min/max ratios to be used by sysfs
> > callbacks */
> > +static int uncore_write_ratio(struct uncore_data *data, unsigned
> > int input,
> > + int set_max)
> > +{
> > + int ret;
> > + u64 cap;
> > +
> > + mutex_lock(&uncore_lock);
> > +
> > + input /= UNCORE_FREQ_KHZ_MULTIPLIER;
> > + if (!input || input > 0x7F) {
> > + ret = -EINVAL;
> > + goto finish_write;
> > + }
> > +
> > + rdmsrl(MSR_UNCORE_RATIO_LIMIT, cap);
> Should it be rdmsrl_on_cpu()?
Yes. Fixed and sent update.

Thanks,
Srinivas

>
> Thanks,
> Chenyu