[PATCH v3 4/6] riscv: dts: renesas: convert isa detection to new properties

[Conor Dooley]

On Mon, Oct 09, 2023 at 02:15:47PM +0200, Geert Uytterhoeven wrote:
> Hi Conor,
> 
> On Mon, Oct 9, 2023 at 11:44 AM Conor Dooley <conor.dooley at microchip.com> wrote:
> > Convert the RZ/Five devicetrees to use the new properties
> > "riscv,isa-base" & "riscv,isa-extensions".
> > For compatibility with other projects, "riscv,isa" remains.
> >
> > Signed-off-by: Conor Dooley <conor.dooley at microchip.com>
> 
> Thanks for your patch!
> 
> > --- a/arch/riscv/boot/dts/renesas/r9a07g043f.dtsi
> > +++ b/arch/riscv/boot/dts/renesas/r9a07g043f.dtsi
> > @@ -24,6 +24,9 @@ cpu0: cpu at 0 {
> >                         reg = <0x0>;
> >                         status = "okay";
> >                         riscv,isa = "rv64imafdc";
> > +                       riscv,isa-base = "rv64i";
> > +                       riscv,isa-extensions = "i", "m", "a", "f", "d", "c", "zicntr", "zicsr",
> > +                                              "zifencei", "zihpm";
> 
> LGMT, so
> Reviewed-by: Geert Uytterhoeven <geert+renesas at glider.be>
> 
> I could not review the "zi*" parts, as the documentation that I have
> does not mention these.

These are effectively the assumptions that the kernel already makes, for
things that used to be part of the base isa (or were assumed to be) that
are now extensions in their own right.

The Zihpm it'd be good if someone from the Renesas or Andes sides could
confirm though.

Cheers,
Conor.

> 
> >                         mmu-type = "riscv,sv39";
> >                         i-cache-size = <0x8000>;
> >                         i-cache-line-size = <0x40>;
> 
> Gr{oetje,eeting}s,
> 
>                         Geert
> 
> -- 
> Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert at linux-m68k.org
> 
> In personal conversations with technical people, I call myself a hacker. But
> when I'm talking to journalists I just say "programmer" or something like that.
>                                 -- Linus Torvalds
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