diff options
Diffstat (limited to 'lib/sbi/sbi_pmu.c')
| -rw-r--r-- | lib/sbi/sbi_pmu.c | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/lib/sbi/sbi_pmu.c b/lib/sbi/sbi_pmu.c index 818b875..1bb3e49 100644 --- a/lib/sbi/sbi_pmu.c +++ b/lib/sbi/sbi_pmu.c @@ -369,6 +369,20 @@ static int pmu_ctr_stop_fw(uint32_t cidx, uint32_t fw_evt_code) return 0; } +static int pmu_reset_hw_mhpmevent(int ctr_idx) +{ + if (ctr_idx < 3 || ctr_idx >= SBI_PMU_HW_CTR_MAX) + return SBI_EFAIL; +#if __riscv_xlen == 32 + csr_write_num(CSR_MHPMEVENT3 + ctr_idx - 3, 0); + csr_write_num(CSR_MHPMEVENT3H + ctr_idx - 3, 0); +#else + csr_write_num(CSR_MHPMEVENT3 + ctr_idx - 3, 0); +#endif + + return 0; +} + int sbi_pmu_ctr_stop(unsigned long cbase, unsigned long cmask, unsigned long flag) { @@ -392,8 +406,10 @@ int sbi_pmu_ctr_stop(unsigned long cbase, unsigned long cmask, else ret = pmu_ctr_stop_hw(cbase); - if (!ret && (flag & SBI_PMU_STOP_FLAG_RESET)) + if (flag & SBI_PMU_STOP_FLAG_RESET) { active_events[hartid][cbase] = SBI_PMU_EVENT_IDX_INVALID; + pmu_reset_hw_mhpmevent(cbase); + } } return ret; |