[riscv-CMOs:master] reported: How to discover the information of cache block size by software? #github #risv #CMOs


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[riscv-CMOs:master] New Comment on Issue #48 How to discover the information of cache block size by software?
By gfavor:

My understanding of the intent of the RVA ISA Profiles is that Linux distros will target an RVA profile. At some point going forward that will be RVA22. Once distros target RVA22, then the Zic64b mandate from the profile will mean that a distro can assume 64B for the two CBO block sizes. Would that still mean that standard RISC-V Linux has to support dynamic discovery of the two block sizes (given that they can only be 64B in RVA-compliant distros and hardware), i.e. that these extra builtin's need to be implemented?

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