mbox series

[v8,00/10] Support Andes PMU extension

Message ID 20240129092553.2058043-1-peterlin@andestech.com (mailing list archive)
Headers show
Series Support Andes PMU extension | expand

Message

Yu-Chien Peter Lin Jan. 29, 2024, 9:25 a.m. UTC
Hi All,

This patch series introduces the Andes PMU extension, which serves the
same purpose as Sscofpmf and Smcntrpmf. Its non-standard local interrupt
is assigned to bit 18 in the custom S-mode local interrupt enable and
pending registers (slie/slip), while the interrupt cause is (256 + 18).

Linux patches based on:
- ed5b7cf ("riscv: errata: andes: Probe for IOCP only once in boot stage")
It can be found on Andes Technology GitHub:
- https://github.com/andestech/linux/commits/andes-pmu-support-v8

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 (9):
  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
  perf: RISC-V: Introduce Andes PMU to support perf event sampling
  dt-bindings: riscv: Add Andes PMU extension description
  riscv: dts: renesas: Add Andes PMU extension for r9a07g043f

 .../devicetree/bindings/riscv/cpus.yaml       |   6 +-
 .../devicetree/bindings/riscv/extensions.yaml |   7 +
 arch/riscv/boot/dts/renesas/r9a07g043f.dtsi   |   4 +-
 arch/riscv/errata/andes/errata.c              |  10 +-
 arch/riscv/include/asm/errata_list.h          |  13 +-
 arch/riscv/include/asm/hwcap.h                |   1 +
 arch/riscv/include/asm/vendorid_list.h        |   2 +-
 arch/riscv/kernel/alternative.c               |   2 +-
 arch/riscv/kernel/cpufeature.c                |   1 +
 drivers/irqchip/irq-riscv-intc.c              |  88 ++++++++++--
 drivers/perf/Kconfig                          |  14 ++
 drivers/perf/riscv_pmu_sbi.c                  |  37 ++++-
 include/linux/soc/andes/irq.h                 |  18 +++
 .../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 +
 18 files changed, 494 insertions(+), 39 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

Comments

Palmer Dabbelt Feb. 21, 2024, 8:58 p.m. UTC | #1
On Mon, 29 Jan 2024 01:25:43 PST (-0800), peterlin@andestech.com wrote:
> Hi All,
>
> This patch series introduces the Andes PMU extension, which serves the
> same purpose as Sscofpmf and Smcntrpmf. Its non-standard local interrupt
> is assigned to bit 18 in the custom S-mode local interrupt enable and
> pending registers (slie/slip), while the interrupt cause is (256 + 18).
>
> Linux patches based on:
> - ed5b7cf ("riscv: errata: andes: Probe for IOCP only once in boot stage")
> It can be found on Andes Technology GitHub:
> - https://github.com/andestech/linux/commits/andes-pmu-support-v8
>
> 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 (9):
>   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
>   perf: RISC-V: Introduce Andes PMU to support perf event sampling
>   dt-bindings: riscv: Add Andes PMU extension description
>   riscv: dts: renesas: Add Andes PMU extension for r9a07g043f
>
>  .../devicetree/bindings/riscv/cpus.yaml       |   6 +-
>  .../devicetree/bindings/riscv/extensions.yaml |   7 +
>  arch/riscv/boot/dts/renesas/r9a07g043f.dtsi   |   4 +-
>  arch/riscv/errata/andes/errata.c              |  10 +-
>  arch/riscv/include/asm/errata_list.h          |  13 +-
>  arch/riscv/include/asm/hwcap.h                |   1 +
>  arch/riscv/include/asm/vendorid_list.h        |   2 +-
>  arch/riscv/kernel/alternative.c               |   2 +-
>  arch/riscv/kernel/cpufeature.c                |   1 +
>  drivers/irqchip/irq-riscv-intc.c              |  88 ++++++++++--
>  drivers/perf/Kconfig                          |  14 ++
>  drivers/perf/riscv_pmu_sbi.c                  |  37 ++++-
>  include/linux/soc/andes/irq.h                 |  18 +++
>  .../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 +
>  18 files changed, 494 insertions(+), 39 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

Acked-by: Palmer Dabbelt <palmer@rivosinc.com>

in case someone wants to take this via another tree.  I'm also OK taking 
it via the RISC-V tree, pending a resolution to Thomas' comments on 
patch 2.  For now I'm going to assume there's a v9 coming.

Thanks!
Yu-Chien Peter Lin Feb. 22, 2024, 3:23 a.m. UTC | #2
Hi Palmer,

On Wed, Feb 21, 2024 at 12:58:31PM -0800, Palmer Dabbelt wrote:
> On Mon, 29 Jan 2024 01:25:43 PST (-0800), peterlin@andestech.com wrote:
> > Hi All,
> > 
> > This patch series introduces the Andes PMU extension, which serves the
> > same purpose as Sscofpmf and Smcntrpmf. Its non-standard local interrupt
> > is assigned to bit 18 in the custom S-mode local interrupt enable and
> > pending registers (slie/slip), while the interrupt cause is (256 + 18).
> > 
> > Linux patches based on:
> > - ed5b7cf ("riscv: errata: andes: Probe for IOCP only once in boot stage")
> > It can be found on Andes Technology GitHub:
> > - https://github.com/andestech/linux/commits/andes-pmu-support-v8
> > 
> > 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 (9):
> >   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
> >   perf: RISC-V: Introduce Andes PMU to support perf event sampling
> >   dt-bindings: riscv: Add Andes PMU extension description
> >   riscv: dts: renesas: Add Andes PMU extension for r9a07g043f
> > 
> >  .../devicetree/bindings/riscv/cpus.yaml       |   6 +-
> >  .../devicetree/bindings/riscv/extensions.yaml |   7 +
> >  arch/riscv/boot/dts/renesas/r9a07g043f.dtsi   |   4 +-
> >  arch/riscv/errata/andes/errata.c              |  10 +-
> >  arch/riscv/include/asm/errata_list.h          |  13 +-
> >  arch/riscv/include/asm/hwcap.h                |   1 +
> >  arch/riscv/include/asm/vendorid_list.h        |   2 +-
> >  arch/riscv/kernel/alternative.c               |   2 +-
> >  arch/riscv/kernel/cpufeature.c                |   1 +
> >  drivers/irqchip/irq-riscv-intc.c              |  88 ++++++++++--
> >  drivers/perf/Kconfig                          |  14 ++
> >  drivers/perf/riscv_pmu_sbi.c                  |  37 ++++-
> >  include/linux/soc/andes/irq.h                 |  18 +++
> >  .../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 +
> >  18 files changed, 494 insertions(+), 39 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
> 
> Acked-by: Palmer Dabbelt <palmer@rivosinc.com>
> 
> in case someone wants to take this via another tree.  I'm also OK taking it
> via the RISC-V tree, pending a resolution to Thomas' comments on patch 2.
> For now I'm going to assume there's a v9 coming.

Yes, I'm working on v9, please hold off taking the series, thanks.

Regards,
Peter Lin

> Thanks!