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 static char mem_stores_name[100];
9
10 #define MEM_LOADS_AUX 0x8203
11 #define MEM_LOADS_AUX_NAME "{%s/mem-loads-aux/,%s/mem-loads,ldlat=%u/}:P"
12
13 #define E(t, n, s) { .tag = t, .name = n, .sysfs_name = s }
14
15 static struct perf_mem_event perf_mem_events[PERF_MEM_EVENTS__MAX] = {
16 E("ldlat-loads", "%s/mem-loads,ldlat=%u/P", "%s/events/mem-loads"),
17 E("ldlat-stores", "%s/mem-stores/P", "%s/events/mem-stores"),
18 E(NULL, NULL, NULL),
19 };
20
perf_mem_events__ptr(int i)21 struct perf_mem_event *perf_mem_events__ptr(int i)
22 {
23 if (i >= PERF_MEM_EVENTS__MAX)
24 return NULL;
25
26 return &perf_mem_events[i];
27 }
28
is_mem_loads_aux_event(struct evsel * leader)29 bool is_mem_loads_aux_event(struct evsel *leader)
30 {
31 if (perf_pmu__find("cpu")) {
32 if (!pmu_have_event("cpu", "mem-loads-aux"))
33 return false;
34 } else if (perf_pmu__find("cpu_core")) {
35 if (!pmu_have_event("cpu_core", "mem-loads-aux"))
36 return false;
37 }
38
39 return leader->core.attr.config == MEM_LOADS_AUX;
40 }
41
perf_mem_events__name(int i,char * pmu_name)42 char *perf_mem_events__name(int i, char *pmu_name)
43 {
44 struct perf_mem_event *e = perf_mem_events__ptr(i);
45
46 if (!e)
47 return NULL;
48
49 if (i == PERF_MEM_EVENTS__LOAD) {
50 if (mem_loads_name__init && !pmu_name)
51 return mem_loads_name;
52
53 if (!pmu_name) {
54 mem_loads_name__init = true;
55 pmu_name = (char *)"cpu";
56 }
57
58 if (pmu_have_event(pmu_name, "mem-loads-aux")) {
59 scnprintf(mem_loads_name, sizeof(mem_loads_name),
60 MEM_LOADS_AUX_NAME, pmu_name, pmu_name,
61 perf_mem_events__loads_ldlat);
62 } else {
63 scnprintf(mem_loads_name, sizeof(mem_loads_name),
64 e->name, pmu_name,
65 perf_mem_events__loads_ldlat);
66 }
67 return mem_loads_name;
68 }
69
70 if (i == PERF_MEM_EVENTS__STORE) {
71 if (!pmu_name)
72 pmu_name = (char *)"cpu";
73
74 scnprintf(mem_stores_name, sizeof(mem_stores_name),
75 e->name, pmu_name);
76 return mem_stores_name;
77 }
78
79 return (char *)e->name;
80 }
81