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
10static char mem_loads_name[100];
11static bool mem_loads_name__init;
12static 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
19static 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
25static 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
31struct 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
42bool 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
55const 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