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// SPDX-License-Identifier: GPL-2.0
#include <linux/list.h>
#include <linux/compiler.h>
#include <linux/string.h>
#include <linux/zalloc.h>
#include <sys/types.h>
#include <errno.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <unistd.h>
#include <stdio.h>
#include <stdbool.h>
#include <stdarg.h>
#include <locale.h>
#include <api/fs/fs.h>
#include "fncache.h"
#include "pmu-hybrid.h"
LIST_HEAD(perf_pmu__hybrid_pmus);
bool perf_pmu__hybrid_mounted(const char *name)
{
int cpu;
char pmu_name[PATH_MAX];
struct perf_pmu pmu = {.name = pmu_name};
if (strncmp(name, "cpu_", 4))
return false;
strlcpy(pmu_name, name, sizeof(pmu_name));
return perf_pmu__scan_file(&pmu, "cpus", "%u", &cpu) > 0;
}
struct perf_pmu *perf_pmu__find_hybrid_pmu(const char *name)
{
struct perf_pmu *pmu;
if (!name)
return NULL;
perf_pmu__for_each_hybrid_pmu(pmu) {
if (!strcmp(name, pmu->name))
return pmu;
}
return NULL;
}
bool perf_pmu__is_hybrid(const char *name)
{
return perf_pmu__find_hybrid_pmu(name) != NULL;
}
char *perf_pmu__hybrid_type_to_pmu(const char *type)
{
char *pmu_name = NULL;
if (asprintf(&pmu_name, "cpu_%s", type) < 0)
return NULL;
if (perf_pmu__is_hybrid(pmu_name))
return pmu_name;
/*
* pmu may be not scanned, check the sysfs.
*/
if (perf_pmu__hybrid_mounted(pmu_name))
return pmu_name;
free(pmu_name);
return NULL;
}
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