linux-kernel - Re: [PATCH v3 RESEND 10/13] dt-bindings: riscv: Add Andes PMU extension description

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Message-ID: <20231026-concierge-perfume-6c327fc5282f@spud>
Date:   Thu, 26 Oct 2023 15:09:30 +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: [PATCH v3 RESEND 10/13] dt-bindings: riscv: Add Andes PMU
 extension description

On Thu, Oct 26, 2023 at 04:22:22PM +0800, Yu-Chien Peter Lin wrote:
> Hi Conor,
> 
> On Mon, Oct 23, 2023 at 01:03:53PM +0100, Conor Dooley wrote:
> > On Mon, Oct 23, 2023 at 08:40:57AM +0800, Yu Chien Peter Lin wrote:
> > > Document the ISA string for Andes Technology performance monitor
> > > extension which provides counter overflow interrupt and mode
> > > filtering mechanisms.
> > > 
> > > Signed-off-by: Yu Chien Peter Lin <peterlin@...estech.com>
> > > ---
> > > Changes v2 -> v3:
> > >   - New patch
> > > ---
> > >  Documentation/devicetree/bindings/riscv/extensions.yaml | 7 +++++++
> > >  1 file changed, 7 insertions(+)
> > > 
> > > diff --git a/Documentation/devicetree/bindings/riscv/extensions.yaml b/Documentation/devicetree/bindings/riscv/extensions.yaml
> > > index 5e9291d258d5..e0694e2adbc2 100644
> > > --- a/Documentation/devicetree/bindings/riscv/extensions.yaml
> > > +++ b/Documentation/devicetree/bindings/riscv/extensions.yaml
> > > @@ -246,6 +246,13 @@ properties:
> > >              in commit 2e5236 ("Ztso is now ratified.") of the
> > >              riscv-isa-manual.
> > >  
> > > +        - const: xandespmu
> > > +          description:
> > > +            The Andes Technology performance monitor extension for counter overflow
> > > +            and privilege mode filtering. For more details, see Counter Related
> > > +            Registers in the AX45MP datasheet.
> > > +            https://www.andestech.com/wp-content/uploads/AX45MP-1C-Rev.-5.0.0-Datasheet.pdf
> > 
> > Does/will this PMU function identically on the other CPUs that support it?
> 
> Yes, I can confirm that.

If there's a more generic document available, that'd be good.
Otherwise,
Acked-by: Conor Dooley <conor.dooley@...rochip.com>

Thanks,
Conor.

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