add support for Zicbo* extension #46
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@liweiwei90 please rebase this PR to dev branch. Change target to dev branch. Also make an entry in CHANGELOG.md under the |
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this PR will add support for Zicbo* extension. It also add BLOCKSZ macro which will be used by tests for cbo.zero. The cache block size can be configured by riscv-config with cmo support(riscv-software-src/riscv-config#79)