[PATCH 0/8] arm64: pmu: Detect multiple PMU types in an ACPI system

Jeremy Linton [off-list ref] writes:

v5:
Remove list of CPU types for ACPI systems. We now match a generic
event list, and use the PMCIED[01] to select events which exist on
the given PMU. This avoids the need to update the kernel every-time
a new CPU is released.
Update the maintainers list to include the new file.

v4:
Correct build issues with ARM (!ARM64) kernels.
Add ThunderX to list of PMU types.

v3:
Enable ARM performance monitoring units on ACPI/arm64 machines.

This patch expands and reworks the patches published by Mark Salter
in order to clean up a few of the previous review comments, as well as
add support for newer CPUs and big/little configurations.

Hi Jeremy,

I have a few comments on the individual patches but overall I found the
patches a bit confusing due to introduction of functionality and then
changing them in later patches.

IMHO, some patch re-organisation to make the series better as a whole will
help in review (even though it may lead to more invasive changes
to Mark's patches).

Thanks,
Punit

Jeremy Linton (6):
  arm64: pmu: Probe default hw/cache counters
  arm: arm64: Add routine to determine cpuid of other cpus
  arm: arm64: pmu: Assign platform PMU CPU affinity
  arm64: pmu: Add routines for detecting differing PMU types in the
  arm64: pmu: Enable multiple PMUs in an ACPI system
  MAINTAINERS: Tweak ARM PMU maintainers

Mark Salter (2):
  arm64: pmu: add fallback probe table
  arm64: pmu: Add support for probing with ACPI

 MAINTAINERS                      |   3 +-
 arch/arm/include/asm/cputype.h   |   6 +-
 arch/arm64/include/asm/cputype.h |   4 +
 arch/arm64/kernel/perf_event.c   |  51 ++++++++-
 arch/arm64/kernel/smp.c          |   5 +
 drivers/perf/Kconfig             |   4 +
 drivers/perf/Makefile            |   1 +
 drivers/perf/arm_pmu.c           |  57 +++++++++--
 drivers/perf/arm_pmu_acpi.c      | 216 +++++++++++++++++++++++++++++++++++++++
 include/linux/perf/arm_pmu.h     |  10 ++
 10 files changed, 341 insertions(+), 16 deletions(-)
 create mode 100644 drivers/perf/arm_pmu_acpi.c