Commit 4115155b authored by Pincheng Wang's avatar Pincheng Wang Committed by Paul Walmsley
Browse files

dt-bindings: riscv: add Zilsd and Zclsd extension descriptions 



Add descriptions for the Zilsd (Load/Store pair instructions) and
Zclsd (Compressed Load/Store pair instructions) ISA extensions
which were ratified in commit f88abf1 ("Integrating load/store
pair for RV32 with the main manual") of the riscv-isa-manual.

Signed-off-by: default avatarPincheng Wang <pincheng.plct@isrc.iscas.ac.cn>
Reviewed-by: default avatarNutty Liu <nutty.liu@hotmail.com>
Acked-by: default avatarConor Dooley <conor.dooley@microchip.com>
Link: https://patch.msgid.link/20250826162939.1494021-2-pincheng.plct@isrc.iscas.ac.cn


Signed-off-by: default avatarPaul Walmsley <pjw@kernel.org>
parent e0e51a0d

Documentation/devicetree/bindings/riscv/extensions.yaml

+36 −0
Original line number Diff line number Diff line
@@ -377,6 +377,20 @@ properties: 
            guarantee on LR/SC sequences, as ratified in commit b1d806605f87

            ("Updated to ratified state.") of the riscv profiles specification.



        - const: zilsd

          description:

            The standard Zilsd extension which provides support for aligned

            register-pair load and store operations in 32-bit instruction

            encodings, as ratified in commit f88abf1 ("Integrating

            load/store pair for RV32 with the main manual") of riscv-isa-manual.



        - const: zclsd

          description:

            The Zclsd extension implements the compressed (16-bit) version of the

            Load/Store Pair for RV32. As with Zilsd, this extension was ratified

            in commit f88abf1 ("Integrating load/store pair for RV32 with the

            main manual") of riscv-isa-manual.



        - const: zk

          description:

            The standard Zk Standard Scalar cryptography extension as ratified
@@ -882,6 +896,16 @@ properties: 
            anyOf:

              - const: v

              - const: zve32x

      # Zclsd depends on Zilsd and Zca

      - if:

          contains:

            anyOf:

              - const: zclsd

        then:

          contains:

            allOf:

              - const: zilsd

              - const: zca



allOf:

  # Zcf extension does not exist on rv64
@@ -899,6 +923,18 @@ allOf: 
          not:

            contains:

              const: zcf

  # Zilsd extension does not exist on rv64

  - if:

      properties:

        riscv,isa-base:

          contains:

            const: rv64i

    then:

      properties:

        riscv,isa-extensions:

          not:

            contains:

              const: zilsd



additionalProperties: true

...