tools/perf/arch/x86/util/evlist.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 #include <stdio.h>
   3 #include "util/pmu.h"
   4 #include "util/evlist.h"
   5 #include "util/parse-events.h"
   6
   7 #define TOPDOWN_L1_EVENTS       "{slots,topdown-retiring,topdown-bad-spec,topdown-fe-bound,topdown-be-bound}"
   8 #define TOPDOWN_L2_EVENTS       "{slots,topdown-retiring,topdown-bad-spec,topdown-fe-bound,topdown-be-bound,topdown-heavy-ops,topdown-br-mispredict,topdown-fetch-lat,topdown-mem-bound}"
   9
  10 int arch_evlist__add_default_attrs(struct evlist *evlist)
  11 {
  12         if (!pmu_have_event("cpu", "slots"))
  13                 return 0;
  14
  15         if (pmu_have_event("cpu", "topdown-heavy-ops"))
  16                 return parse_events(evlist, TOPDOWN_L2_EVENTS, NULL);
  17         else
  18                 return parse_events(evlist, TOPDOWN_L1_EVENTS, NULL);
  19 }
  20
  21 struct evsel *arch_evlist__leader(struct list_head *list)
  22 {
  23         struct evsel *evsel, *first, *slots = NULL;
  24         bool has_topdown = false;
  25
  26         first = list_first_entry(list, struct evsel, core.node);
  27
  28         if (!pmu_have_event("cpu", "slots"))
  29                 return first;
  30
  31         /* If there is a slots event and a topdown event then the slots event comes first. */
  32         __evlist__for_each_entry(list, evsel) {
  33                 if (evsel->pmu_name && !strcmp(evsel->pmu_name, "cpu") && evsel->name) {
  34                         if (strcasestr(evsel->name, "slots")) {
  35                                 slots = evsel;
  36                                 if (slots == first)
  37                                         return first;
  38                         }
  39                         if (!strncasecmp(evsel->name, "topdown", 7))
  40                                 has_topdown = true;
  41                         if (slots && has_topdown)
  42                                 return slots;
  43                 }
  44         }
  45         return first;
  46 }