[PATCH v2 00/11] Add Andes PMU extension support

[Yu Chien Peter Lin]

This patch series enables perf tool to utilize Andes PMU
extension via PMU SBI calls, provides PMU device callbacks
to achieve event sampling and mode filtering.

This version also introduces a platform override fdt_add_pmu_mappings()
to create event mappings before PMU setup if a valid PMU node
is missing.

The last patch provides a PMU node example used on AX45MP cores.

The OpenSBI and Linux patches can be found on Andes Technology GitHub
- https://github.com/andestech/opensbi/commits/andes-pmu-support-v2
- https://github.com/andestech/linux/commits/andes-pmu-support-v2

Yu Chien Peter Lin (11):
  sbi: sbi_pmu: Improve sbi_pmu_init() error handling
  sbi: sbi_pmu: Add hw_counter_filter_mode() to pmu device
  platform: include: andes45: Add PMU related CSR defines
  platform: andes: Add Andes custom PMU support
  platform: andes: Enable Andes PMU for AE350
  platform: rzfive: Enable Andes PMU for RZ/Five
  lib: utils: fdt_fixup: Add fdt_add_pmu_mappings() helper function
  lib: utils: fdt_fixup: Allow preserving PMU properties
  platform: andes: Factor out is_andes() helper
  platform: andes: Implement andes_fdt_add_pmu_mappings platform
    override
  docs: pmu: Add Andes PMU node example

 docs/pmu_support.md                          |  82 ++++
 include/sbi/sbi_ecall_interface.h            |   5 +
 include/sbi/sbi_pmu.h                        |   6 +
 include/sbi/sbi_scratch.h                    |   2 +
 include/sbi_utils/fdt/fdt_fixup.h            |  48 +++
 lib/sbi/sbi_pmu.c                            |  10 +-
 lib/utils/fdt/fdt_fixup.c                    | 101 ++++-
 lib/utils/fdt/fdt_pmu.c                      |   2 +-
 platform/generic/Kconfig                     |   4 +
 platform/generic/andes/Kconfig               |  11 +
 platform/generic/andes/ae350.c               |  31 +-
 platform/generic/andes/andes_hpm.c           | 381 +++++++++++++++++++
 platform/generic/andes/andes_pmu.c           |  81 ++++
 platform/generic/andes/objects.mk            |   2 +
 platform/generic/include/andes/andes45.h     |  32 ++
 platform/generic/include/andes/andes_hpm.h   |  83 ++++
 platform/generic/include/andes/andes_pmu.h   |   8 +
 platform/generic/include/platform_override.h |   1 +
 platform/generic/platform.c                  |  16 +-
 platform/generic/renesas/rzfive/rzfive.c     |  18 +-
 20 files changed, 909 insertions(+), 15 deletions(-)
 create mode 100644 platform/generic/andes/andes_hpm.c
 create mode 100644 platform/generic/andes/andes_pmu.c
 create mode 100644 platform/generic/include/andes/andes_hpm.h
 create mode 100644 platform/generic/include/andes/andes_pmu.h

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2.34.1