[v5,00/16] Support Andes PMU extension

Message

Yu-Chien Peter Lin Dec. 13, 2023, 7:02 a.m. UTC

Hi All,

This patch series introduces the Andes PMU extension, which serves
the same purpose as Sscofpmf. To use FDT-based probing for hardware
support of the PMU extensions, we first convert T-Head's PMU to CPU
feature alternative, and add Andes PMU alternatives.

Its non-standard local interrupt is assigned to bit 18 in the
custom S-mode local interrupt enable/pending registers (slie/slip),
while the interrupt cause is (256 + 18).

Mainline OpenSBI has supported Andes PMU extension:
- https://github.com/riscv-software-src/opensbi/tree/master
Linux patches (based on v6.7-rc5) can be found on Andes Technology GitHub
- https://github.com/andestech/linux/commits/andes-pmu-support-v5

The PMU device tree node used on AX45MP:
- https://github.com/riscv-software-src/opensbi/blob/master/docs/pmu_support.md#example-3

Locus Wei-Han Chen (1):
  riscv: andes: Support specifying symbolic firmware and hardware raw
    events

Yu Chien Peter Lin (15):
  riscv: errata: Rename defines for Andes
  irqchip/riscv-intc: Allow large non-standard interrupt number
  irqchip/riscv-intc: Introduce Andes hart-level interrupt controller
  dt-bindings: riscv: Add Andes interrupt controller compatible string
  riscv: dts: renesas: r9a07g043f: Update compatible string to use Andes
    INTC
  perf: RISC-V: Eliminate redundant interrupt enable/disable operations
  RISC-V: Move T-Head PMU to CPU feature alternative framework
  perf: RISC-V: Introduce Andes PMU for perf event sampling
  dt-bindings: riscv: Add T-Head PMU extension description
  dt-bindings: riscv: Add Andes PMU extension description
  riscv: dts: allwinner: Add T-Head PMU extension for sun20i-d1s
  riscv: dts: sophgo: Add T-Head PMU extension for cv1800b
  riscv: dts: sophgo: Add T-Head PMU extension for sg2042
  riscv: dts: thead: Add T-Head PMU extension for th1520
  riscv: dts: renesas: Add Andes PMU extension for r9a07g043f

 .../devicetree/bindings/riscv/cpus.yaml       |   6 +-
 .../devicetree/bindings/riscv/extensions.yaml |  13 ++
 arch/riscv/Kconfig.errata                     |  13 --
 arch/riscv/boot/dts/allwinner/sun20i-d1s.dtsi |   2 +-
 arch/riscv/boot/dts/renesas/r9a07g043f.dtsi   |   4 +-
 arch/riscv/boot/dts/sophgo/cv1800b.dtsi       |   2 +-
 arch/riscv/boot/dts/sophgo/sg2042-cpus.dtsi   | 128 +++++++++---------
 arch/riscv/boot/dts/thead/th1520.dtsi         |   8 +-
 arch/riscv/errata/andes/errata.c              |  10 +-
 arch/riscv/errata/thead/errata.c              |  19 ---
 arch/riscv/include/asm/errata_list.h          |  19 +--
 arch/riscv/include/asm/hwcap.h                |   2 +
 arch/riscv/include/asm/vendorid_list.h        |   2 +-
 arch/riscv/kernel/alternative.c               |   2 +-
 arch/riscv/kernel/cpufeature.c                |   2 +
 drivers/irqchip/irq-riscv-intc.c              |  63 +++++++--
 drivers/perf/Kconfig                          |  27 ++++
 drivers/perf/riscv_pmu_sbi.c                  |  47 +++++--
 include/linux/soc/andes/irq.h                 |  17 +++
 .../arch/riscv/andes/ax45/firmware.json       |  68 ++++++++++
 .../arch/riscv/andes/ax45/instructions.json   | 127 +++++++++++++++++
 .../arch/riscv/andes/ax45/memory.json         |  57 ++++++++
 .../arch/riscv/andes/ax45/microarch.json      |  77 +++++++++++
 tools/perf/pmu-events/arch/riscv/mapfile.csv  |   1 +
 24 files changed, 565 insertions(+), 151 deletions(-)
 create mode 100644 include/linux/soc/andes/irq.h
 create mode 100644 tools/perf/pmu-events/arch/riscv/andes/ax45/firmware.json
 create mode 100644 tools/perf/pmu-events/arch/riscv/andes/ax45/instructions.json
 create mode 100644 tools/perf/pmu-events/arch/riscv/andes/ax45/memory.json
 create mode 100644 tools/perf/pmu-events/arch/riscv/andes/ax45/microarch.json