[PATCH RESEND 1/3] topology: Represent clusters of CPUs within a die

[Peter Zijlstra]

On Thu, Oct 07, 2021 at 11:30:36PM +1300, Barry Song wrote:
> On Thu, Oct 7, 2021 at 2:55 AM Peter Zijlstra <peterz at infradead.org> wrote:
> >
> > On Thu, Oct 07, 2021 at 01:50:43AM +1300, Barry Song wrote:
> > > On Thu, Oct 7, 2021 at 1:20 AM Peter Zijlstra <peterz at infradead.org> wrote:
> > > >
> > > > On Wed, Oct 06, 2021 at 11:50:35PM +1300, Barry Song wrote:
> > > >
> > > > > > diff --git a/drivers/base/arch_topology.c b/drivers/base/arch_topology.c
> > > > > > index 7cb31d959f33..fc0836f460fb 100644
> > > > > > --- a/drivers/base/arch_topology.c
> > > > > > +++ b/drivers/base/arch_topology.c
> > > > > > @@ -622,7 +622,8 @@ void update_siblings_masks(unsigned int cpuid)
> > > > > >                 if (cpuid_topo->package_id != cpu_topo->package_id)
> > > > > >                         continue;
> > > > > >
> > > > > > -               if (cpuid_topo->cluster_id == cpu_topo->cluster_id) {
> > > > > > +               if (cpuid_topo->cluster_id == cpu_topo->cluster_id &&
> > > > > > +                   cpuid_topo->cluster_id != -1) {
> > > > > >                         cpumask_set_cpu(cpu, &cpuid_topo->cluster_sibling);
> > > > > >                         cpumask_set_cpu(cpuid, &cpu_topo->cluster_sibling);
> > > > > >                 }
> > > > > >
> > > > >
> > > > > Hi Peter,
> > > > > Would you like to change this line in your tree?
> > > >
> > > > Can you please double check:
> > > >
> > > >   https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git/log/?h=sched/next
> > >
> > > yes. It is correct for patch 1/3, thanks!
> 
> oops, there is a typo there:
> + if (cpuid_topo->cluster_id == cpu_topo->cluster_id &&
> + cpuid_topo->clister_id != -1) {
> 
> clister should be cluster.

Yeah, my bad, typing so hard... :-) Already fixed.