perf_counters.sv: unimplemented mhpmcounters shall be read-only 0 (!940) · Merge requests · OpenHW Group / backup-20241120 / cva6

Eclipse Webmaster requested to merge github/fork/ASintzoff/dev/fix-mhpmcounters into master Aug 04, 2022

Created by: ASintzoff

see The RISC-V Instruction Set Manual Volume II: Privileged Architecture Version 20211203

3.1.1 Hardware Performance Monitor All counters should be implemented, but a legal implementation is to make both the counter and its corresponding event selector be read-only 0.

Signed-off-by: André Sintzoff andre.sintzoff@thalesgroup.com

perf_counters.sv: unimplemented mhpmcounters shall be read-only 0

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