On Thu, 23 Jul 2020 03:32:37 -0400, Athira Rajeev wrote:

Initialize Monitor Mode Control Register 3 (MMCR3)
SPR which is new in power10. For PowerISA v3.1, BHRB disable
is controlled via Monitor Mode Control Register A (MMCRA) bit,
namely "BHRB Recording Disable (BHRBRD)". This patch also initializes
MMCRA BHRBRD to disable BHRB feature at boot for power10.

Applied to powerpc/next.

[1/1] powerpc/perf: Initialize power10 PMU registers in cpu setup routine
      https://git.kernel.org/powerpc/c/65156f2b1d9d5bf3fd0eac54b0a7fd515c92773c

cheers