Re: [RESEND] [PATCH] perf/x86/intel/uncore: Use boot_cpu_data.phys_proc_id instead of hardcorded phy id 0

From: Masayoshi Mizuma
Date: Thu Sep 20 2018 - 20:10:21 EST


On Thu, Sep 20, 2018 at 05:10:18PM -0400, Liang, Kan wrote:
>
>
> On 9/20/2018 4:55 PM, Thomas Gleixner wrote:
> > On Mon, 10 Sep 2018, Masayoshi Mizuma wrote:
> >
> > CC+ Kan
> >
> > > From: Masayoshi Mizuma <m.mizuma@xxxxxxxxxxxxxx>
> > >
> > > Physical package id 0 is not always exists. We should use
> > > boot_cpu_data.phys_proc_id here.
> > >
> > > Signed-off-by: Masayoshi Mizuma <m.mizuma@xxxxxxxxxxxxxx>
> > > ---
> > > arch/x86/events/intel/uncore_snbep.c | 2 +-
> > > 1 file changed, 1 insertion(+), 1 deletion(-)
> > >
> > > diff --git a/arch/x86/events/intel/uncore_snbep.c b/arch/x86/events/intel/uncore_snbep.c
> > > index 51d7c11..53b981d 100644
> > > --- a/arch/x86/events/intel/uncore_snbep.c
> > > +++ b/arch/x86/events/intel/uncore_snbep.c
> > > @@ -3061,7 +3061,7 @@ static struct event_constraint bdx_uncore_pcu_constraints[] = {
> > > void bdx_uncore_cpu_init(void)
> > > {
> > > - int pkg = topology_phys_to_logical_pkg(0);
> > > + int pkg = topology_phys_to_logical_pkg(boot_cpu_data.phys_proc_id);
>
> I think it's better to use logical_proc_id directly.
>
> + int pkg = boot_cpu_data.logical_proc_id;

Thanks! I'll send the v2.

- Masa