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 (!pmu_have_event("cpu", "mem-loads-aux"))
  15                 return false;
  16
  17         return leader->core.attr.config == MEM_LOADS_AUX;
  18 }
  19
  20 char *perf_mem_events__name(int i)
  21 {
  22         struct perf_mem_event *e = perf_mem_events__ptr(i);
  23
  24         if (!e)
  25                 return NULL;
  26
  27         if (i == PERF_MEM_EVENTS__LOAD) {
  28                 if (mem_loads_name__init)
  29                         return mem_loads_name;
  30
  31                 mem_loads_name__init = true;
  32
  33                 if (pmu_have_event("cpu", "mem-loads-aux")) {
  34                         scnprintf(mem_loads_name, sizeof(mem_loads_name),
  35                                   MEM_LOADS_AUX_NAME, perf_mem_events__loads_ldlat);
  36                 } else {
  37                         scnprintf(mem_loads_name, sizeof(mem_loads_name),
  38                                   e->name, perf_mem_events__loads_ldlat);
  39                 }
  40                 return mem_loads_name;
  41         }
  42
  43         return (char *)e->name;
  44 }