OpenCloudOS-Kernel/tools/perf/util/evlist-hybrid.c

89 lines
1.8 KiB
C

// SPDX-License-Identifier: GPL-2.0-only
#include <errno.h>
#include <inttypes.h>
#include "cpumap.h"
#include "evlist.h"
#include "evsel.h"
#include "../perf.h"
#include "util/pmu-hybrid.h"
#include "util/evlist-hybrid.h"
#include "debug.h"
#include <unistd.h>
#include <stdlib.h>
#include <linux/err.h>
#include <linux/string.h>
#include <perf/evlist.h>
#include <perf/evsel.h>
#include <perf/cpumap.h>
int evlist__add_default_hybrid(struct evlist *evlist, bool precise)
{
struct evsel *evsel;
struct perf_pmu *pmu;
__u64 config;
struct perf_cpu_map *cpus;
perf_pmu__for_each_hybrid_pmu(pmu) {
config = PERF_COUNT_HW_CPU_CYCLES |
((__u64)pmu->type << PERF_PMU_TYPE_SHIFT);
evsel = evsel__new_cycles(precise, PERF_TYPE_HARDWARE,
config);
if (!evsel)
return -ENOMEM;
cpus = perf_cpu_map__get(pmu->cpus);
evsel->core.cpus = cpus;
evsel->core.own_cpus = perf_cpu_map__get(cpus);
evsel->pmu_name = strdup(pmu->name);
evlist__add(evlist, evsel);
}
return 0;
}
static bool group_hybrid_conflict(struct evsel *leader)
{
struct evsel *pos, *prev = NULL;
for_each_group_evsel(pos, leader) {
if (!evsel__is_hybrid(pos))
continue;
if (prev && strcmp(prev->pmu_name, pos->pmu_name))
return true;
prev = pos;
}
return false;
}
void evlist__warn_hybrid_group(struct evlist *evlist)
{
struct evsel *evsel;
evlist__for_each_entry(evlist, evsel) {
if (evsel__is_group_leader(evsel) &&
evsel->core.nr_members > 1 &&
group_hybrid_conflict(evsel)) {
pr_warning("WARNING: events in group from "
"different hybrid PMUs!\n");
return;
}
}
}
bool evlist__has_hybrid(struct evlist *evlist)
{
struct evsel *evsel;
evlist__for_each_entry(evlist, evsel) {
if (evsel->pmu_name &&
perf_pmu__is_hybrid(evsel->pmu_name)) {
return true;
}
}
return false;
}