1// SPDX-License-Identifier: GPL-2.0-only
 2#include <errno.h>
 3#include <inttypes.h>
 4#include "cpumap.h"
 5#include "evlist.h"
 6#include "evsel.h"
 7#include "../perf.h"
 8#include "util/pmu-hybrid.h"
 9#include "util/evlist-hybrid.h"
10#include "debug.h"
11#include <unistd.h>
12#include <stdlib.h>
13#include <linux/err.h>
14#include <linux/string.h>
15#include <perf/evlist.h>
16#include <perf/evsel.h>
17#include <perf/cpumap.h>
18
19int evlist__add_default_hybrid(struct evlist *evlist, bool precise)
20{
21	struct evsel *evsel;
22	struct perf_pmu *pmu;
23	__u64 config;
24	struct perf_cpu_map *cpus;
25
26	perf_pmu__for_each_hybrid_pmu(pmu) {
27		config = PERF_COUNT_HW_CPU_CYCLES |
28			 ((__u64)pmu->type << PERF_PMU_TYPE_SHIFT);
29		evsel = evsel__new_cycles(precise, PERF_TYPE_HARDWARE,
30					  config);
31		if (!evsel)
32			return -ENOMEM;
33
34		cpus = perf_cpu_map__get(pmu->cpus);
35		evsel->core.cpus = cpus;
36		evsel->core.own_cpus = perf_cpu_map__get(cpus);
37		evsel->pmu_name = strdup(pmu->name);
38		evlist__add(evlist, evsel);
39	}
40
41	return 0;
42}
43
44static bool group_hybrid_conflict(struct evsel *leader)
45{
46	struct evsel *pos, *prev = NULL;
47
48	for_each_group_evsel(pos, leader) {
49		if (!evsel__is_hybrid(pos))
50			continue;
51
52		if (prev && strcmp(prev->pmu_name, pos->pmu_name))
53			return true;
54
55		prev = pos;
56	}
57
58	return false;
59}
60
61void evlist__warn_hybrid_group(struct evlist *evlist)
62{
63	struct evsel *evsel;
64
65	evlist__for_each_entry(evlist, evsel) {
66		if (evsel__is_group_leader(evsel) &&
67		    evsel->core.nr_members > 1 &&
68		    group_hybrid_conflict(evsel)) {
69			pr_warning("WARNING: events in group from "
70				   "different hybrid PMUs!\n");
71			return;
72		}
73	}
74}
75
76bool evlist__has_hybrid(struct evlist *evlist)
77{
78	struct evsel *evsel;
79
80	evlist__for_each_entry(evlist, evsel) {
81		if (evsel->pmu_name &&
82		    perf_pmu__is_hybrid(evsel->pmu_name)) {
83			return true;
84		}
85	}
86
87	return false;
88}