[Artful][PATCH 00/12] Backport for Power9 Nest PMU Instrumentation

[Gustavo Walbon]

BugLink: https://bugs.launchpad.net/bugs/1481347

This patchset enable the Power9 Nest PMU Counter to enable it for perf tool. 

These Nest PMU Counters provide per-chip metrics such memory bandwidth, Powerbus
bandwidth and so on.

For test it needs Power9 machine with latest version of BMC and the minimum
skiboot version v5.9-rc5.

Anju T (1):
  powerpc/perf/imc: Fix nest events on muti socket system

Anju T Sudhakar (6):
  powerpc/perf: Add nest IMC PMU support
  powerpc/perf: Add core IMC PMU support
  powerpc/perf: Add thread IMC PMU support
  powerpc/perf: Fix for core/nest imc call trace on cpuhotplug
  powerpc/perf: Add ___GFP_NOWARN flag to alloc_pages_node()
  powerpc/perf: Fix IMC initialization crash

Dan Carpenter (1):
  powerpc/perf: Fix double unlock in imc_common_cpuhp_mem_free()

LABBE Corentin (1):
  powerpc/powernv: Fix build error in opal-imc.c when NUMA=n

Madhavan Srinivasan (3):
  powerpc/powernv: Add IMC OPAL APIs
  powerpc/powernv: Detect and create IMC device
  powerpc/perf: Fix usage of nest_imc_refc

 arch/powerpc/include/asm/imc-pmu.h             |  128 +++
 arch/powerpc/include/asm/opal-api.h            |   12 +-
 arch/powerpc/include/asm/opal.h                |    5 +
 arch/powerpc/perf/Makefile                     |    1 +
 arch/powerpc/perf/imc-pmu.c                    | 1335 ++++++++++++++++++++++++
 arch/powerpc/platforms/powernv/Makefile        |    1 +
 arch/powerpc/platforms/powernv/opal-imc.c      |  226 ++++
 arch/powerpc/platforms/powernv/opal-wrappers.S |    3 +
 arch/powerpc/platforms/powernv/opal.c          |   14 +
 include/linux/cpuhotplug.h                     |    3 +
 10 files changed, 1727 insertions(+), 1 deletion(-)
 create mode 100644 arch/powerpc/include/asm/imc-pmu.h
 create mode 100644 arch/powerpc/perf/imc-pmu.c
 create mode 100644 arch/powerpc/platforms/powernv/opal-imc.c

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2.13.3