dt-bindings: riscv: document cbom-block-size

A patch from »riscv: implement Zicbom-based CMO instructions + the t-head variant« in state Mainline for linux-kernel

From: Heiko Stuebner <heiko@...> Date: Fri, 6 May 2022 16:18:33 +0200

Commit-Message

The Zicbom operates on a block-size defined for the cpu-core, which does not necessarily match other cache-sizes used. So add the necessary property for the system to know the core's block-size. Signed-off-by: Heiko Stuebner <heiko@...>

Patch-Comment

Documentation/devicetree/bindings/riscv/cpus.yaml | 7 +++++++ 1 file changed, 7 insertions(+)

Statistics

  • 7 lines added
  • 0 lines removed

Changes

-------------- Documentation/devicetree/bindings/riscv/cpus.yaml ---------------
index d632ac76532e..b179bfd155a3 100644
@@ -63,6 +63,13 @@ properties:
- riscv,sv48
- riscv,none
+ riscv,cbom-block-size:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ Blocksize in bytes for the Zicbom cache operations. The block
+ size is a property of the core itself and does not necessarily
+ match other software defined cache sizes.
+
riscv,isa:
description:
Identifies the specific RISC-V instruction set architecture
 
 

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