[PATCH v2 00/10] Support Andes PMU extension

* [PATCH v2 00/10] Support Andes PMU extension
@ 2023-10-19 13:52 Yu Chien Peter Lin
  2023-10-19 14:51 ` Conor Dooley
  0 siblings, 1 reply; 3+ messages in thread
From: Yu Chien Peter Lin @ 2023-10-19 13:52 UTC (permalink / raw)
  To: paul.walmsley, palmer, aou, linux-riscv, prabhakar.mahadev-lad.rj,
	tim609, dylan, locus84, dminus, peterlin

Hi All,

This patch series introduces the Andes PMU extension, which serves
the same purpose as Sscofpmf. In this version we use FDT-based
probing and the CONFIG_ANDES_CUSTOM_PMU to enable perf sampling
and filtering support.

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

The feature needs the PMU device callbacks in OpenSBI.
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

The PMU device tree node used on AX45MP:
- https://github.com/andestech/opensbi/blob/andes-pmu-support-v2/docs/pmu_support.md#example-3

Tested hardware:
- ASUS  Tinker-V (RZ/Five, AX45MP single core)
- Andes AE350    (AX45MP quad core)

Locus Wei-Han Chen (1):
  riscv: andes: Support symbolic FW and HW raw events

Yu Chien Peter Lin (9):
  riscv: errata: Rename defines for Andes
  irqchip/riscv-intc: Allow large non-standard hwirq number
  irqchip/riscv-intc: Introduce Andes IRQ chip
  riscv: dts: renesas: r9a07g043f: Update compatible string to use Andes
    INTC
  dt-bindings: riscv: Add andestech,cpu-intc to interrupt-controller
  perf: RISC-V: Eliminate redundant IRQ enable/disable operations
  perf: RISC-V: Move T-Head PMU to CPU feature alternative framework
  perf: RISC-V: Introduce Andes PMU for perf event sampling
  riscv: dts: renesas: Add Andes PMU extension

 .../devicetree/bindings/riscv/cpus.yaml       |   4 +-
 arch/riscv/Kconfig.errata                     |  13 --
 arch/riscv/boot/dts/renesas/r9a07g043f.dtsi   |   4 +-
 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              |  61 +++++++--
 drivers/perf/Kconfig                          |  27 ++++
 drivers/perf/riscv_pmu_sbi.c                  |  49 ++++++-
 include/linux/irqchip/irq-riscv-intc.h        |  12 ++
 .../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 +
 19 files changed, 481 insertions(+), 75 deletions(-)
 create mode 100644 include/linux/irqchip/irq-riscv-intc.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

-- 
2.34.1

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