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 #include "util/event.h"
   7 #include "util/pmu-hybrid.h"
   8 #include "topdown.h"
   9
  10 static int ___evlist__add_default_attrs(struct evlist *evlist,
  11                                         struct perf_event_attr *attrs,
  12                                         size_t nr_attrs)
  13 {
  14         struct perf_cpu_map *cpus;
  15         struct evsel *evsel, *n;
  16         struct perf_pmu *pmu;
  17         LIST_HEAD(head);
  18         size_t i = 0;
  19
  20         for (i = 0; i < nr_attrs; i++)
  21                 event_attr_init(attrs + i);
  22
  23         if (!perf_pmu__has_hybrid())
  24                 return evlist__add_attrs(evlist, attrs, nr_attrs);
  25
  26         for (i = 0; i < nr_attrs; i++) {
  27                 if (attrs[i].type == PERF_TYPE_SOFTWARE) {
  28                         evsel = evsel__new(attrs + i);
  29                         if (evsel == NULL)
  30                                 goto out_delete_partial_list;
  31                         list_add_tail(&evsel->core.node, &head);
  32                         continue;
  33                 }
  34
  35                 perf_pmu__for_each_hybrid_pmu(pmu) {
  36                         evsel = evsel__new(attrs + i);
  37                         if (evsel == NULL)
  38                                 goto out_delete_partial_list;
  39                         evsel->core.attr.config |= (__u64)pmu->type << PERF_PMU_TYPE_SHIFT;
  40                         cpus = perf_cpu_map__get(pmu->cpus);
  41                         evsel->core.cpus = cpus;
  42                         evsel->core.own_cpus = perf_cpu_map__get(cpus);
  43                         evsel->pmu_name = strdup(pmu->name);
  44                         list_add_tail(&evsel->core.node, &head);
  45                 }
  46         }
  47
  48         evlist__splice_list_tail(evlist, &head);
  49
  50         return 0;
  51
  52 out_delete_partial_list:
  53         __evlist__for_each_entry_safe(&head, n, evsel)
  54                 evsel__delete(evsel);
  55         return -1;
  56 }
  57
  58 int arch_evlist__add_default_attrs(struct evlist *evlist,
  59                                    struct perf_event_attr *attrs,
  60                                    size_t nr_attrs)
  61 {
  62         if (!nr_attrs)
  63                 return 0;
  64
  65         return ___evlist__add_default_attrs(evlist, attrs, nr_attrs);
  66 }
  67
  68 int arch_evlist__cmp(const struct evsel *lhs, const struct evsel *rhs)
  69 {
  70         if (topdown_sys_has_perf_metrics() &&
  71             (!lhs->pmu_name || !strncmp(lhs->pmu_name, "cpu", 3))) {
  72                 /* Ensure the topdown slots comes first. */
  73                 if (strcasestr(lhs->name, "slots"))
  74                         return -1;
  75                 if (strcasestr(rhs->name, "slots"))
  76                         return 1;
  77                 /* Followed by topdown events. */
  78                 if (strcasestr(lhs->name, "topdown") && !strcasestr(rhs->name, "topdown"))
  79                         return -1;
  80                 if (!strcasestr(lhs->name, "topdown") && strcasestr(rhs->name, "topdown"))
  81                         return 1;
  82         }
  83
  84         /* Default ordering by insertion index. */
  85         return lhs->core.idx - rhs->core.idx;
  86 }