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

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Date:   Wed, 29 Nov 2023 16:48:56 +0800
From:   Yu-Chien Peter Lin <peterlin@...estech.com>
To:     Guo Ren <guoren@...nel.org>
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Subject: Re: [PATCH v4 09/13] dt-bindings: riscv: Add T-Head PMU extension
 description

Hi Guo Ren,

On Thu, Nov 23, 2023 at 05:14:30AM +0800, Guo Ren wrote:
> 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>

Thanks for the review.
Would you share document about T-Head PMU?

Best regards,
Peter Lin

> -- 
> Best Regards
>  Guo Ren