diff options
Diffstat (limited to 'tools/perf/arch/x86/util/evlist.c')
| -rw-r--r-- | tools/perf/arch/x86/util/evlist.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/tools/perf/arch/x86/util/evlist.c b/tools/perf/arch/x86/util/evlist.c index 1969758cc8c1..75e9d00a1494 100644 --- a/tools/perf/arch/x86/util/evlist.c +++ b/tools/perf/arch/x86/util/evlist.c @@ -81,3 +81,27 @@ int arch_evlist__cmp(const struct evsel *lhs, const struct evsel *rhs) /* Default ordering by insertion index. */ return lhs->core.idx - rhs->core.idx; } + +int arch_evlist__add_required_events(struct list_head *list) +{ + struct evsel *pos, *metric_event = NULL; + int idx = 0; + + if (!topdown_sys_has_perf_metrics()) + return 0; + + list_for_each_entry(pos, list, core.node) { + if (arch_is_topdown_slots(pos)) { + /* Slots event already present, nothing to do. */ + return 0; + } + if (metric_event == NULL && arch_is_topdown_metrics(pos)) + metric_event = pos; + idx++; + } + if (metric_event == NULL) { + /* No topdown metric events, nothing to do. */ + return 0; + } + return topdown_insert_slots_event(list, idx + 1, metric_event); +} |