Re: [PATCH -fixes v2 2/4] dt-bindings: riscv: Add ratified privileged ISA versions
From: Conor Dooley
Date: Tue Feb 13 2024 - 12:03:56 EST
On Mon, Feb 12, 2024 at 07:37:33PM -0800, Samuel Holland wrote:
> The baseline for the RISC-V privileged ISA is version 1.10. Using
> features from newer versions of the privileged ISA requires the
> supported version to be reported by platform firmware, either in the ISA
> string (where the binding already accepts version numbers) or in the
> riscv,isa-extensions property. So far two newer versions are ratified.
>
> Signed-off-by: Samuel Holland <samuel.holland@xxxxxxxxxx>
> ---
>
> Changes in v2:
> - New patch for v2
>
> .../devicetree/bindings/riscv/extensions.yaml | 20 +++++++++++++++++++
> 1 file changed, 20 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/riscv/extensions.yaml b/Documentation/devicetree/bindings/riscv/extensions.yaml
> index 63d81dc895e5..7faf22df01af 100644
> --- a/Documentation/devicetree/bindings/riscv/extensions.yaml
> +++ b/Documentation/devicetree/bindings/riscv/extensions.yaml
> @@ -121,6 +121,16 @@ properties:
> version of the privileged ISA specification.
>
> # multi-letter extensions, sorted alphanumerically
> + - const: sm1p11
Why are we beholden to this "1p11" format of RVI's? We have free choice
of characters here, what's stopping us using "machine-v1.11", for
example?
Thanks,
Conor.
> + description:
> + The standard Machine ISA v1.11, as ratified in the 20190608
> + version of the privileged ISA specification.
> +
> + - const: sm1p12
> + description:
> + The standard Machine ISA v1.12, as ratified in the 20211203
> + version of the privileged ISA specification.
> +
> - const: smaia
> description: |
> The standard Smaia supervisor-level extension for the advanced
> @@ -134,6 +144,16 @@ properties:
> added by other RISC-V extensions in H/S/VS/U/VU modes and as
> ratified at commit a28bfae (Ratified (#7)) of riscv-state-enable.
>
> + - const: ss1p11
> + description:
> + The standard Supervisor ISA v1.11, as ratified in the 20190608
> + version of the privileged ISA specification.
> +
> + - const: ss1p12
> + description:
> + The standard Supervisor ISA v1.12, as ratified in the 20211203
> + version of the privileged ISA specification.
> +
> - const: ssaia
> description: |
> The standard Ssaia supervisor-level extension for the advanced
> --
> 2.43.0
>
>
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