diff options
Diffstat (limited to 'target/arm/helper.c')
| -rw-r--r-- | target/arm/helper.c | 27 |
1 files changed, 16 insertions, 11 deletions
diff --git a/target/arm/helper.c b/target/arm/helper.c index 676059cb38..66faebea8e 100644 --- a/target/arm/helper.c +++ b/target/arm/helper.c @@ -1090,22 +1090,24 @@ static const pm_event pm_events[] = { static uint16_t supported_event_map[MAX_EVENT_ID + 1]; /* - * Called upon initialization to build PMCEID0_EL0 or PMCEID1_EL0 (indicated by - * 'which'). We also use it to build a map of ARM event numbers to indices in - * our pm_events array. + * Called upon CPU initialization to initialize PMCEID[01]_EL0 and build a map + * of ARM event numbers to indices in our pm_events array. * * Note: Events in the 0x40XX range are not currently supported. */ -uint64_t get_pmceid(CPUARMState *env, unsigned which) +void pmu_init(ARMCPU *cpu) { - uint64_t pmceid = 0; unsigned int i; - assert(which <= 1); - + /* + * Empty supported_event_map and cpu->pmceid[01] before adding supported + * events to them + */ for (i = 0; i < ARRAY_SIZE(supported_event_map); i++) { supported_event_map[i] = UNSUPPORTED_EVENT; } + cpu->pmceid0 = 0; + cpu->pmceid1 = 0; for (i = 0; i < ARRAY_SIZE(pm_events); i++) { const pm_event *cnt = &pm_events[i]; @@ -1113,13 +1115,16 @@ uint64_t get_pmceid(CPUARMState *env, unsigned which) /* We do not currently support events in the 0x40xx range */ assert(cnt->number <= 0x3f); - if ((cnt->number & 0x20) == (which << 6) && - cnt->supported(env)) { - pmceid |= (1 << (cnt->number & 0x1f)); + if (cnt->supported(&cpu->env)) { supported_event_map[cnt->number] = i; + uint64_t event_mask = 1 << (cnt->number & 0x1f); + if (cnt->number & 0x20) { + cpu->pmceid1 |= event_mask; + } else { + cpu->pmceid0 |= event_mask; + } } } - return pmceid; } /* |