On Tue, 06 Apr 2021 12:05:34 PDT (-0700), xypron.glpk@xxxxxx wrote:
In Documentation/devicetree/bindings/riscv/cpus.yaml I find for riscv,isa: enum: - rv64imac - rv64imafdc This implies that 'rv64imafc' or 'rv64imafdqc' would be illegal values while these combinations of extensions would be compliant with "The RISC-V Instruction Set Manual". To me it does not make much sense to try to enumerate all permissible permutations of RISC-V extensions. Shouldn't this enum be removed and replaced by examples?
I'm generally OK with that, but I'm not sure how to do it: won't we fail the scheme checks if we don't have something defined for "riscv,isa"?