[PATCH v2 1/3] dt-bindings: riscv: document cbom-block-size

Heiko Stuebner
2022-05-11T21:41:54Z

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@sntech.de>
---
Documentation/devicetree/bindings/riscv/cpus.yaml | 7 +++++++
1 file changed, 7 insertions(+)

diff --git a/Documentation/devicetree/bindings/riscv/cpus.yaml b/Documentation/devicetree/bindings/riscv/cpus.yaml
index d632ac76532e..b179bfd155a3 100644
--- a/Documentation/devicetree/bindings/riscv/cpus.yaml
+++ b/Documentation/devicetree/bindings/riscv/cpus.yaml
@@ -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
--
2.35.1