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[v6,3/8] dt-bindings: riscv: Document cboz-block-size

Message ID 20230224162631.405473-4-ajones@ventanamicro.com
State Accepted
Commit ea20f117ab99d7c7653df656ddb795e51d9f7733
Headers show
Series RISC-V: Apply Zicboz to clear_page | expand

Commit Message

Andrew Jones Feb. 24, 2023, 4:26 p.m. UTC 
The Zicboz operation (cbo.zero) operates on a block-size defined
for the cpu-core. While we already have the riscv,cbom-block-size
property, it only provides the block size for Zicbom operations.
Even though it's likely Zicboz and Zicbom will use the same size,
that's not required by the specification. Create another property
specifically for Zicboz.

Cc: Rob Herring <robh@kernel.org>
Signed-off-by: Andrew Jones <ajones@ventanamicro.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Rob Herring <robh@kernel.org>
---
 Documentation/devicetree/bindings/riscv/cpus.yaml | 5 +++++
 1 file changed, 5 insertions(+)
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Patch

diff --git a/Documentation/devicetree/bindings/riscv/cpus.yaml b/Documentation/devicetree/bindings/riscv/cpus.yaml
index 001931d526ec..f24cf9601c6e 100644
--- a/Documentation/devicetree/bindings/riscv/cpus.yaml
+++ b/Documentation/devicetree/bindings/riscv/cpus.yaml
@@ -72,6 +72,11 @@  properties:
     description:
       The blocksize in bytes for the Zicbom cache operations.
 
+  riscv,cboz-block-size:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description:
+      The blocksize in bytes for the Zicboz cache operations.
+
   riscv,isa:
     description:
       Identifies the specific RISC-V instruction set architecture