linux-kernel - Re: [PATCH v4 09/13] dt-bindings: riscv: Add T-Head PMU extension description

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Date:   Thu, 23 Nov 2023 05:14:30 +0800
From:   Guo Ren <guoren@...nel.org>
To:     Yu Chien Peter Lin <peterlin@...estech.com>
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Subject: Re: [PATCH v4 09/13] dt-bindings: riscv: Add T-Head PMU extension description

On Wed, Nov 22, 2023 at 8:17 PM Yu Chien Peter Lin
<peterlin@...estech.com> wrote:
>
> Document the ISA string for T-Head performance monitor extension
> which provides counter overflow interrupt mechanism.
>
> Signed-off-by: Yu Chien Peter Lin <peterlin@...estech.com>
> ---
> Changes v2 -> v3:
>   - New patch
> Changes v3 -> v4:
>   - No change
> ---
>  Documentation/devicetree/bindings/riscv/extensions.yaml | 6 ++++++
>  1 file changed, 6 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/riscv/extensions.yaml b/Documentation/devicetree/bindings/riscv/extensions.yaml
> index c91ab0e46648..694efaea8fce 100644
> --- a/Documentation/devicetree/bindings/riscv/extensions.yaml
> +++ b/Documentation/devicetree/bindings/riscv/extensions.yaml
> @@ -258,5 +258,11 @@ properties:
>              in commit 2e5236 ("Ztso is now ratified.") of the
>              riscv-isa-manual.
>
> +        - const: xtheadpmu
> +          description:
> +            The T-Head performance monitor extension for counter overflow. For more
> +            details, see the chapter 12 in the Xuantie C906 user manual.
> +            https://github.com/T-head-Semi/openc906/tree/main/doc
> +
>  additionalProperties: true
>  ...
> --
> 2.34.1
>
Reviewed-by: Guo Ren <guoren@...nel.org>

-- 
Best Regards
 Guo Ren