On Thu, Feb 15, 2024 at 9:09 PM Michael Ellerman
[off-list ref] wrote:

On Fri, 29 Dec 2023 23:01:03 +1100, Michael Ellerman wrote:

quoted

If nr_cpu_ids is too low to include at least all the threads of a single
core adjust nr_cpu_ids upwards. This avoids triggering odd bugs in code
that assumes all threads of a core are available.

Applied to powerpc/next.

Great! After all these years, finally we are close to the conclusion
of this feature.

Thanks,

Pingfan

[1/5] powerpc/smp: Adjust nr_cpu_ids to cover all threads of a core
      https://git.kernel.org/powerpc/c/5580e96dad5a439d561d9648ffcbccb739c2a120
[2/5] powerpc/smp: Increase nr_cpu_ids to include the boot CPU
      https://git.kernel.org/powerpc/c/777f81f0a9c780a6443bcf2c7785f0cc2e87c1ef
[3/5] powerpc/smp: Lookup avail once per device tree node
      https://git.kernel.org/powerpc/c/dca79603fbc592ec7ea8bd7ba274052d3984e882
[4/5] powerpc/smp: Factor out assign_threads()
      https://git.kernel.org/powerpc/c/9832de654499f0bf797a3719c4d4c5bd401f18f5
[5/5] powerpc/smp: Remap boot CPU onto core 0 if >= nr_cpu_ids
      https://git.kernel.org/powerpc/c/0875f1ceba974042069f04946aa8f1d4d1e688da

cheers