Re: [PATCH v2 09/10] riscv: dts: renesas: Add Andes PMU extension

From: Geert Uytterhoeven
Date: Fri Oct 20 2023 - 03:33:08 EST


Hi Peter,

On Thu, Oct 19, 2023 at 4:05 PM Yu Chien Peter Lin
<peterlin@xxxxxxxxxxxxx> wrote:
> Add "xandespmu" to ISA extensions, the SBI PMU driver will
> probe the extension and use the non-standard irq source.
>
> Signed-off-by: Yu Chien Peter Lin <peterlin@xxxxxxxxxxxxx>
> ---
> Changes v1 -> v2:
> - New patch

Thanks for your patch!

> --- a/arch/riscv/boot/dts/renesas/r9a07g043f.dtsi
> +++ b/arch/riscv/boot/dts/renesas/r9a07g043f.dtsi
> @@ -26,7 +26,7 @@ cpu0: cpu@0 {
> riscv,isa = "rv64imafdc";
> riscv,isa-base = "rv64i";
> riscv,isa-extensions = "i", "m", "a", "f", "d", "c", "zicntr", "zicsr",
> - "zifencei", "zihpm";
> + "zifencei", "zihpm", "xandespmu";
> mmu-type = "riscv,sv39";
> i-cache-size = <0x8000>;
> i-cache-line-size = <0x40>;

This extension is not documented in
Documentation/devicetree/bindings/riscv/extensions.yaml. Perhaps it was
introduced in an earlier patch in the series, to which I was not CCed?

Threading is broken, so I can't easily find the whole series in lore:
https://lore.kernel.org/all/20231019140232.3660375-1-peterlin@xxxxxxxxxxxxx/

Gr{oetje,eeting}s,

Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds