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