tools/perf/arch/x86/util/mem-events.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 #include "util/pmu.h"
   3 #include "map_symbol.h"
   4 #include "mem-events.h"
   5
   6 static char mem_loads_name[100];
   7 static bool mem_loads_name__init;
   8
   9 #define MEM_LOADS_AUX           0x8203
  10 #define MEM_LOADS_AUX_NAME      "{cpu/mem-loads-aux/,cpu/mem-loads,ldlat=%u/pp}:S"
  11
  12 bool is_mem_loads_aux_event(struct evsel *leader)
  13 {
  14         if (perf_pmu__find("cpu")) {
  15                 if (!pmu_have_event("cpu", "mem-loads-aux"))
  16                         return false;
  17         } else if (perf_pmu__find("cpu_core")) {
  18                 if (!pmu_have_event("cpu_core", "mem-loads-aux"))
  19                         return false;
  20         }
  21
  22         return leader->core.attr.config == MEM_LOADS_AUX;
  23 }
  24
  25 char *perf_mem_events__name(int i)
  26 {
  27         struct perf_mem_event *e = perf_mem_events__ptr(i);
  28
  29         if (!e)
  30                 return NULL;
  31
  32         if (i == PERF_MEM_EVENTS__LOAD) {
  33                 if (mem_loads_name__init)
  34                         return mem_loads_name;
  35
  36                 mem_loads_name__init = true;
  37
  38                 if (pmu_have_event("cpu", "mem-loads-aux")) {
  39                         scnprintf(mem_loads_name, sizeof(mem_loads_name),
  40                                   MEM_LOADS_AUX_NAME, perf_mem_events__loads_ldlat);
  41                 } else {
  42                         scnprintf(mem_loads_name, sizeof(mem_loads_name),
  43                                   e->name, perf_mem_events__loads_ldlat);
  44                 }
  45                 return mem_loads_name;
  46         }
  47
  48         return (char *)e->name;
  49 }