On Fri, 01 Nov 2024 17:07:55 -0700, Samuel Holland wrote: > Information about physical memory regions is needed by both the kernel > and M-mode firmware. For example, the kernel needs to know about > noncacheable aliases of cacheable memory in order to allocate coherent > memory pages for DMA. M-mode firmware needs to know about aliases so it > can protect itself from lower-privileged software. Firmware also needs > to know the platform's Physical Address Width in order to efficiently > implement Smmpt. > > The RISC-V Privileged Architecture delegates the description of Physical > Memory Attributes to the platform. On DT-based platforms, it makes sense > to put this information in the devicetree. > > Signed-off-by: Samuel Holland <samuel.holland@xxxxxxxxxx> > --- > > .../bindings/riscv/physical-memory.yaml | 101 ++++++++++++++++++ > include/dt-bindings/riscv/physical-memory.h | 44 ++++++++ > 2 files changed, 145 insertions(+) > create mode 100644 Documentation/devicetree/bindings/riscv/physical-memory.yaml > create mode 100644 include/dt-bindings/riscv/physical-memory.h > My bot found errors running 'make dt_binding_check' on your patch: yamllint warnings/errors: dtschema/dtc warnings/errors: /builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/riscv/physical-memory.example.dtb: /: compatible: 'oneOf' conditional failed, one must be fixed: ['starfive,jh7100'] is too short 'starfive,jh7100' is not one of ['beagle,beaglev-starlight-jh7100-r0', 'starfive,visionfive-v1'] 'starfive,jh7100' is not one of ['milkv,mars', 'pine64,star64', 'starfive,visionfive-2-v1.2a', 'starfive,visionfive-2-v1.3b'] from schema $id: http://devicetree.org/schemas/riscv/starfive.yaml# /builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/riscv/physical-memory.example.dtb: /: 'model' is a required property from schema $id: http://devicetree.org/schemas/root-node.yaml# doc reference errors (make refcheckdocs): See https://patchwork.ozlabs.org/project/devicetree-bindings/patch/20241102000843.1301099-2-samuel.holland@xxxxxxxxxx The base for the series is generally the latest rc1. A different dependency should be noted in *this* patch. If you already ran 'make dt_binding_check' and didn't see the above error(s), then make sure 'yamllint' is installed and dt-schema is up to date: pip3 install dtschema --upgrade Please check and re-submit after running the above command yourself. Note that DT_SCHEMA_FILES can be set to your schema file to speed up checking your schema. However, it must be unset to test all examples with your schema.
