RE: [PATCH V4 5/8] perf/x86/intel/uncore: add infrastructure for free running counter
From: Liang, Kan
Date: Mon Jan 15 2018 - 10:53:35 EST
> On Thu, 2 Nov 2017, kan.liang@xxxxxxxxx wrote:
>
> > From: Kan Liang <Kan.liang@xxxxxxxxx>
> >
> > The free running counter is read-only and always active. Current generic
> > uncore code does not support this kind of counters.
> >
> > The free running counter is read-only. It cannot be enable/disable in
> > event_start/stop.
> > The free running counter event and free running counter are 1:1 mapped.
> > It doesn't need to be assigned nor tracked by event_list.
> > The free running counters are always active. It doesn't need to check
> > the free running counters' availability.
> >
> > Use inline helpers to check fixed counter index and free running counter
> > index.
> >
>
> That changelog is horrible to read. Other than that:
>
Hi Thomas,
Thanks for your review.
Sorry about the changelog.
I will modify the changelog and resend all the patches.
Thanks,
Kan
> Reviewed-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>