On Thu, 12 Aug 2021 18:52:18 +0530, Aneesh Kumar K.V wrote:

Form2 associativity adds a much more flexible NUMA topology layout
than what is provided by Form1. More details can be found in patch 7.

$ numactl -H
...
node distances:
node   0   1   2   3
  0:  10  11  222  33
  1:  44  10  55  66
  2:  77  88  10  99
  3:  101  121  132  10
$

[...]

Applied to powerpc/next.

[1/5] powerpc/pseries: rename min_common_depth to primary_domain_index
      https://git.kernel.org/powerpc/c/7e35ef662ca05c42dbc2f401bb76d9219dd7fd02
[2/5] powerpc/pseries: Rename TYPE1_AFFINITY to FORM1_AFFINITY
      https://git.kernel.org/powerpc/c/0eacd06bb8adea8dd9edb0a30144166d9f227e64
[3/5] powerpc/pseries: Consolidate different NUMA distance update code paths
      https://git.kernel.org/powerpc/c/8ddc6448ec5a5ef50eaa581a7dec0e12a02850ff
[4/5] powerpc/pseries: Add a helper for form1 cpu distance
      https://git.kernel.org/powerpc/c/ef31cb83d19c4c589d650747cd5a7e502be9f665
[5/5] powerpc/pseries: Add support for FORM2 associativity
      https://git.kernel.org/powerpc/c/1c6b5a7e74052768977855f95d6b8812f6e7772c

cheers