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
perf_mem_events__ptr(int i)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
is_mem_loads_aux_event(struct evsel * leader)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
perf_mem_events__name(int i,const char * pmu_name)55 const char *perf_mem_events__name(int i, const 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 = "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 = "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 e->name;
93 }
94