linux-kernel - Re: [RFC PATCH v3 RESEND 09/13] dt-bindings: riscv: Add T-Head PMU extension description

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Message-ID: <20231023-facility-phonebook-1be493346bf1@spud>
Date:   Mon, 23 Oct 2023 13:25:19 +0100
From:   Conor Dooley <conor@...nel.org>
To:     Yu Chien Peter Lin <peterlin@...estech.com>
Cc:     acme@...nel.org, adrian.hunter@...el.com, ajones@...tanamicro.com,
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Subject: Re: [RFC PATCH v3 RESEND 09/13] dt-bindings: riscv: Add T-Head PMU
 extension description

On Mon, Oct 23, 2023 at 08:40:56AM +0800, Yu Chien Peter Lin 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
> ---
>  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 cc1f546fdbdc..5e9291d258d5 100644
> --- a/Documentation/devicetree/bindings/riscv/extensions.yaml
> +++ b/Documentation/devicetree/bindings/riscv/extensions.yaml
> @@ -246,5 +246,11 @@ 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

This really needs to be linked off to a specific version of the document,
lest there be revisions that remove the document from the repository and
to one that is in English.

Cheers,
Conor.


> +
>  additionalProperties: true
>  ...
> -- 
> 2.34.1
> 

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