diff options
| -rw-r--r-- | lib/sbi/sbi_pmu.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/sbi/sbi_pmu.c b/lib/sbi/sbi_pmu.c index 4092e6f..c276a46 100644 --- a/lib/sbi/sbi_pmu.c +++ b/lib/sbi/sbi_pmu.c @@ -583,6 +583,10 @@ void sbi_pmu_exit(struct sbi_scratch *scratch) { u32 hartid = current_hartid(); + /* SBI PMU is not supported if mcountinhibit is not available */ + if (!sbi_hart_has_feature(scratch, SBI_HART_HAS_MCOUNTINHIBIT)) + return; + csr_write(CSR_MCOUNTINHIBIT, 0xFFFFFFF8); csr_write(CSR_MCOUNTEREN, 7); pmu_reset_event_map(hartid); |