[PATCH v2] powerpc/smp: Expose die_id and die_cpumask

Madhavan Srinivasan maddy at linux.ibm.com
Fri Nov 21 13:54:09 AEDT 2025


On Wed, 12 Nov 2025 13:18:59 +0530, Srikar Dronamraju wrote:
> >From Power10 processors onwards, each chip has 2 hemispheres. For LPARs
> running on PowerVM Hypervisor, hypervisor determines the allocation of
> CPU groups to each LPAR, resulting in two LPARs with the same number of
> CPUs potentially having different numbers of CPUs from each hemisphere.
> Additionally, it is not feasible to ascertain the hemisphere based
> solely on the CPU number.
> 
> [...]

Applied to powerpc/next.

[1/1] powerpc/smp: Expose die_id and die_cpumask
      https://git.kernel.org/powerpc/c/fb2ff9fa72e20a75cab0ffc9dc8735de68ed4d0d

Thanks


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