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

Yu-Chien Peter Lin peterlin at andestech.com
Thu Oct 26 01:22:22 PDT 2023


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 at andestech.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.
Thanks for the review.

Best regards,
Peter Lin

> I assume the answer is yes.
> 
> Cheers,
> Conor.
> 
> > +
> >          - const: xtheadpmu
> >            description:
> >              The T-Head performance monitor extension for counter overflow. For more
> > -- 
> > 2.34.1
> > 





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