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- // SPDX-License-Identifier: GPL-2.0
- #include <stdio.h>
- #include "cpu.h"
- #include "fs/fs.h"
- int cpu__get_max_freq(unsigned long long *freq)
- {
- char entry[PATH_MAX];
- int cpu;
- if (sysfs__read_int("devices/system/cpu/online", &cpu) < 0)
- return -1;
- snprintf(entry, sizeof(entry),
- "devices/system/cpu/cpu%d/cpufreq/cpuinfo_max_freq", cpu);
- return sysfs__read_ull(entry, freq);
- }
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