1 // SPDX-License-Identifier: GPL-2.0 2 #include "util/pmu.h" 3 #include "util/pmus.h" 4 #include "util/env.h" 5 #include "map_symbol.h" 6 #include "mem-events.h" 7 #include "linux/string.h" 8 #include "env.h" 9 10 static char mem_loads_name[100]; 11 static bool mem_loads_name__init; 12 static char mem_stores_name[100]; 13 14 #define MEM_LOADS_AUX 0x8203 15 #define MEM_LOADS_AUX_NAME "{%s/mem-loads-aux/,%s/mem-loads,ldlat=%u/}:P" 16 17 #define E(t, n, s) { .tag = t, .name = n, .sysfs_name = s } 18 19 static struct perf_mem_event perf_mem_events_intel[PERF_MEM_EVENTS__MAX] = { 20 E("ldlat-loads", "%s/mem-loads,ldlat=%u/P", "%s/events/mem-loads"), 21 E("ldlat-stores", "%s/mem-stores/P", "%s/events/mem-stores"), 22 E(NULL, NULL, NULL), 23 }; 24 25 static struct perf_mem_event perf_mem_events_amd[PERF_MEM_EVENTS__MAX] = { 26 E(NULL, NULL, NULL), 27 E(NULL, NULL, NULL), 28 E("mem-ldst", "ibs_op//", "ibs_op"), 29 }; 30 31 struct perf_mem_event *perf_mem_events__ptr(int i) 32 { 33 if (i >= PERF_MEM_EVENTS__MAX) 34 return NULL; 35 36 if (x86__is_amd_cpu()) 37 return &perf_mem_events_amd[i]; 38 39 return &perf_mem_events_intel[i]; 40 } 41 42 bool is_mem_loads_aux_event(struct evsel *leader) 43 { 44 struct perf_pmu *pmu = perf_pmus__find("cpu"); 45 46 if (!pmu) 47 pmu = perf_pmus__find("cpu_core"); 48 49 if (pmu && !perf_pmu__have_event(pmu, "mem-loads-aux")) 50 return false; 51 52 return leader->core.attr.config == MEM_LOADS_AUX; 53 } 54 55 char *perf_mem_events__name(int i, char *pmu_name) 56 { 57 struct perf_mem_event *e = perf_mem_events__ptr(i); 58 59 if (!e) 60 return NULL; 61 62 if (i == PERF_MEM_EVENTS__LOAD) { 63 if (mem_loads_name__init && !pmu_name) 64 return mem_loads_name; 65 66 if (!pmu_name) { 67 mem_loads_name__init = true; 68 pmu_name = (char *)"cpu"; 69 } 70 71 if (perf_pmus__have_event(pmu_name, "mem-loads-aux")) { 72 scnprintf(mem_loads_name, sizeof(mem_loads_name), 73 MEM_LOADS_AUX_NAME, pmu_name, pmu_name, 74 perf_mem_events__loads_ldlat); 75 } else { 76 scnprintf(mem_loads_name, sizeof(mem_loads_name), 77 e->name, pmu_name, 78 perf_mem_events__loads_ldlat); 79 } 80 return mem_loads_name; 81 } 82 83 if (i == PERF_MEM_EVENTS__STORE) { 84 if (!pmu_name) 85 pmu_name = (char *)"cpu"; 86 87 scnprintf(mem_stores_name, sizeof(mem_stores_name), 88 e->name, pmu_name); 89 return mem_stores_name; 90 } 91 92 return (char *)e->name; 93 } 94