1#include <stdio.h>
 2
 3#include "cpu.h"
 4#include "fs/fs.h"
 5
 6int cpu__get_max_freq(unsigned long long *freq)
 7{
 8	char entry[PATH_MAX];
 9	int cpu;
10
11	if (sysfs__read_int("devices/system/cpu/online", &cpu) < 0)
12		return -1;
13
14	snprintf(entry, sizeof(entry),
15		 "devices/system/cpu/cpu%d/cpufreq/cpuinfo_max_freq", cpu);
16
17	return sysfs__read_ull(entry, freq);
18}