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Message-ID: <7034611.lOV4Wx5bFT@diego>
Date: Thu, 24 Nov 2022 14:42:20 +0100
From: Heiko Stübner <heiko@...ech.de>
To: linux-riscv@...ts.infradead.org,
Conor Dooley <conor.dooley@...rochip.com>
Cc: Conor Dooley <conor.dooley@...rochip.com>,
Conor Dooley <conor@...nel.org>,
Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Paul Walmsley <paul.walmsley@...ive.com>,
Palmer Dabbelt <palmer@...belt.com>,
Albert Ou <aou@...s.berkeley.edu>,
Andrew Jones <ajones@...tanamicro.com>,
Guo Ren <guoren@...nel.org>, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] dt-bindings: riscv: fix single letter canonical order
Am Donnerstag, 24. November 2022, 14:04:41 CET schrieb Conor Dooley:
> I used the wikipedia table for ordering extensions when updating the
> pattern here in foo.
^ foo? :-)
> Unfortunately that table did not match canonical order, as defined by
> the RISC-V ISA Manual, which defines extension ordering in (what is
> currently) Table 41, "Standard ISA extension names". Fix things up by
> re-sorting v (vector) and adding p (packed-simd) & j (dynamic
> languages). The e (reduced integer) and g (general) extensions are still
> intentionally left out.
>
> Link: https://github.com/riscv/riscv-isa-manual/releases/tag/riscv-unpriv-pdf-from-asciidoc-15112022 # Chapter 29.5
> Fixes: 299824e68bd0 ("dt-bindings: riscv: add new riscv,isa strings for emulators")
> Signed-off-by: Conor Dooley <conor.dooley@...rochip.com>
So I have compared the new pattern to the isa manual,
and it looks like the order checks out, so
Reviewed-by: Heiko Stuebner <heiko@...ech.de>
> ---
> Documentation/devicetree/bindings/riscv/cpus.yaml | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/Documentation/devicetree/bindings/riscv/cpus.yaml b/Documentation/devicetree/bindings/riscv/cpus.yaml
> index e80c967a4fa4..b7462ea2dbe4 100644
> --- a/Documentation/devicetree/bindings/riscv/cpus.yaml
> +++ b/Documentation/devicetree/bindings/riscv/cpus.yaml
> @@ -80,7 +80,7 @@ properties:
> insensitive, letters in the riscv,isa string must be all
> lowercase to simplify parsing.
> $ref: "/schemas/types.yaml#/definitions/string"
> - pattern: ^rv(?:64|32)imaf?d?q?c?b?v?k?h?(?:z(?:[a-z])+)?(?:_[hsxz](?:[a-z])+)*$
> + pattern: ^rv(?:64|32)imaf?d?q?c?b?k?j?p?v?h?(?:z(?:[a-z])+)?(?:_[hsxz](?:[a-z])+)*$
>
> # RISC-V requires 'timebase-frequency' in /cpus, so disallow it here
> timebase-frequency: false
>
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