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Message-ID: <20230710151624.GA1987602-robh@kernel.org>
Date: Mon, 10 Jul 2023 09:16:24 -0600
From: Rob Herring <robh@...nel.org>
To: Samuel Ortiz <sameo@...osinc.com>
Cc: Paul Walmsley <paul.walmsley@...ive.com>,
Palmer Dabbelt <palmer@...belt.com>,
Albert Ou <aou@...s.berkeley.edu>,
linux-riscv@...ts.infradead.org, linux@...osinc.com,
Conor Dooley <conor.dooley@...rochip.com>,
Andrew Jones <ajones@...tanamicro.com>,
Heiko Stuebner <heiko.stuebner@...ll.eu>,
Anup Patel <apatel@...tanamicro.com>,
linux-kernel@...r.kernel.org,
"Hongren (Zenithal) Zheng" <i@...ithal.me>,
Guo Ren <guoren@...nel.org>, Atish Patra <atishp@...osinc.com>,
Björn Töpel <bjorn@...osinc.com>,
Evan Green <evan@...osinc.com>, devicetree@...r.kernel.org
Subject: Re: [PATCH v3 2/4] dt-bindings: riscv: Document the 1.0 scalar
cryptography extensions
On Sun, Jul 09, 2023 at 01:55:44PM +0200, Samuel Ortiz wrote:
> The RISC-V cryptography extensions define a set of instructions, CSR
> definitions, architectural interfaces and also extension shorthands for
> running scalar and vector based cryptography operations on RISC-V
> systems.
>
> This documents all the dt-bindings for the scalar cryptography
> extensions, including the Zk, Zkn and Zks shorthands.
>
> Signed-off-by: Samuel Ortiz <sameo@...osinc.com>
> ---
> .../devicetree/bindings/riscv/extensions.yaml | 82 +++++++++++++++++++
> 1 file changed, 82 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/riscv/extensions.yaml b/Documentation/devicetree/bindings/riscv/extensions.yaml
> index cc1f546fdbdc..361756978da1 100644
> --- a/Documentation/devicetree/bindings/riscv/extensions.yaml
> +++ b/Documentation/devicetree/bindings/riscv/extensions.yaml
> @@ -190,6 +190,24 @@ properties:
> instructions as ratified at commit 6d33919 ("Merge pull request #158
> from hirooih/clmul-fix-loop-end-condition") of riscv-bitmanip.
>
> + - const: zbkb
> + description: |
Don't need '|' if no formatting to preserve.
> + The standard Zbkb cryptography extension for bit-manipulation
> + instructions, as ratified at commit 73de909
> + ("Zvk: Update AES instruction specs") of riscv-crypto.
> +
> + - const: zbkc
> + description: |
> + The standard Zbkc cryptography extension for carry-less multiply
> + instructions, as ratified at commit 73de909
> + ("Zvk: Update AES instruction specs") of riscv-crypto.
> +
> + - const: zbkx
> + description: |
> + The standard Zbkx cryptography extension for crossbar permutation
> + instructions, as ratified at commit 73de909
> + ("Zvk: Update AES instruction specs") of riscv-crypto.
> +
> - const: zicbom
> description:
> The standard Zicbom extension for base cache management operations as
> @@ -240,6 +258,70 @@ properties:
> ratified in the 20191213 version of the unprivileged ISA
> specification.
>
> + - const: zk
> + description: |
> + The standard Zk cryptography extension is a shorthand for the
> + union of the Zkn, Zkr and Zkt cryptography extensions, as ratified
> + at commit 73de909 ("Zvk: Update AES instruction specs") of
> + riscv-crypto.
> +
> + - const: zkn
> + description: |
> + The standard Zkn cryptography extension covers the NIST algorithm
> + suite that other cryptography extensions support. It is the union of
> + the Zbkb, Zbkc, Zbkx, Zknd, Zkne and Zknh extensions, as ratified at
> + commit 73de909 ("Zvk: Update AES instruction specs") of riscv-crypto.
> +
> + - const: zknd
> + description: |
> + The standard Zknd cryptography extension for AES block cipher
> + decryption acceleration instructions, as ratified at commit 73de909
> + ("Zvk: Update AES instruction specs") of riscv-crypto.
> +
> + - const: zkne
> + description: |
> + The standard Zkne cryptography extension for AES block cipher
> + encryption acceleration instructions, as ratified at commit 73de909
> + ("Zvk: Update AES instruction specs") of riscv-crypto.
> +
> + - const: zknh
> + description: |
> + The standard Zknh cryptography extension for SHA2 hash algorithm
> + functions acceleration instructions as ratified at commit 73de909
> + ("Zvk: Update AES instruction specs") of riscv-crypto.
> +
> + - const: zkr
> + description: |
> + The standard Zkr cryptography extension for the entropy source CSR
> + definitions, as ratified at commit 73de909
> + ("Zvk: Update AES instruction specs") of riscv-crypto.
> +
> + - const: zks
> + description: |
> + The standard Zks cryptography extension covers the ShangMi algorithm
> + suite that other cryptography extensions support. It is the union of
> + the Zbkb, Zbkc, Zbkx, Zksed and Zksh extensions, as ratified at
> + commit 73de909 ("Zvk: Update AES instruction specs") of riscv-crypto.
> +
> + - const: zksed
> + description: |
> + The standard Zksed cryptography extension for SM4 block cipher
> + acceleration instructions, as ratified at commit 73de909
> + ("Zvk: Update AES instruction specs") of riscv-crypto.
> +
> + - const: zksh
> + description: |
> + The standard Zksh cryptography extension for SM3 hash algorithm
> + funstions acceleration instructions, as ratified at commit 73de909
> + ("Zvk: Update AES instruction specs") of riscv-crypto.
> +
> + - const: zkt
> + description: |
> + The standard Zkt cryptography extension for data independent
> + execution latency attestation, for a safe subset of instructions,
> + as ratified at commit 73de909 ("Zvk: Update AES instruction specs")
> + of riscv-crypto.
> +
> - const: ztso
> description:
> The standard Ztso extension for total store ordering, as ratified
> --
> 2.41.0
>
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