On Wed, Jul 22, 2020 at 12:27:47PM +0530, Srikar Dronamraju wrote:
> * Gautham R Shenoy [2020-07-22 11:51:14]:
>
> > Hi Srikar,
> >
> > > diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c
> > > index 72f16dc0cb26..57468877499a 100644
> > > --- a/arch/powerpc/kernel/smp.c
> > > +
* Gautham R Shenoy [2020-07-22 11:51:14]:
> Hi Srikar,
>
> > diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c
> > index 72f16dc0cb26..57468877499a 100644
> > --- a/arch/powerpc/kernel/smp.c
> > +++ b/arch/powerpc/kernel/smp.c
> > @@ -1196,6 +1196,7 @@ static bool update_mask_by
Hi Srikar,
On Tue, Jul 21, 2020 at 05:08:09PM +0530, Srikar Dronamraju wrote:
> Current code assumes that cpumask of cpus sharing a l2-cache mask will
> always be a superset of cpu_sibling_mask.
>
> Lets stop that assumption. cpu_l2_cache_mask is a superset of
> cpu_sibling_mask if and only if sh
Current code assumes that cpumask of cpus sharing a l2-cache mask will
always be a superset of cpu_sibling_mask.
Lets stop that assumption. cpu_l2_cache_mask is a superset of
cpu_sibling_mask if and only if shared_caches is set.
Cc: linuxppc-dev
Cc: LKML
Cc: Michael Ellerman
Cc: Ingo Molnar
C
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