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 12:33:46 +0000
From:   Conor Dooley <conor@...nel.org>
To:     Yu-Chien Peter Lin <peterlin@...estech.com>
Cc:     Conor Dooley <conor.dooley@...rochip.com>, acme@...nel.org,
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Subject: Re: [PATCH v4 09/13] dt-bindings: riscv: Add T-Head PMU extension
 description

On Wed, Nov 29, 2023 at 04:47:38PM +0800, Yu-Chien Peter Lin wrote:
> Hi Conor,
> 
> On Thu, Nov 23, 2023 at 02:48:20PM +0000, Conor Dooley wrote:
> > On Wed, Nov 22, 2023 at 08:12:31PM +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
> > > 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
> > 
> > I'm pretty sure that I asked on the previous revision for you to
> > identify a specific revision of this document.
> 
> Sorry, I'm still searching for it.

Identifying a specific commit from that repo as the revision would be
okay. Follow the format used elsewhere for the standard extensions.

Cheers,
Conor.

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