1// SPDX-License-Identifier: GPL-2.0
 2#include <stdio.h>
 3
 4#include "cpu.h"
 5#include "fs/fs.h"
 6
 7int cpu__get_max_freq(unsigned long long *freq)
 8{
 9	char entry[PATH_MAX];
10	int cpu;
11
12	if (sysfs__read_int("devices/system/cpu/online", &cpu) < 0)
13		return -1;
14
15	snprintf(entry, sizeof(entry),
16		 "devices/system/cpu/cpu%d/cpufreq/cpuinfo_max_freq", cpu);
17
18	return sysfs__read_ull(entry, freq);
19}

 1// SPDX-License-Identifier: GPL-2.0
 2#include <stdio.h>
 3
 4#include "cpu.h"
 5#include "fs/fs.h"
 6
 7int cpu__get_max_freq(unsigned long long *freq)
 8{
 9	char entry[PATH_MAX];
10	int cpu;
11
12	if (sysfs__read_int("devices/system/cpu/online", &cpu) < 0)
13		return -1;
14
15	snprintf(entry, sizeof(entry),
16		 "devices/system/cpu/cpu%d/cpufreq/cpuinfo_max_freq", cpu);
17
18	return sysfs__read_ull(entry, freq);
19}