1 files changed, 18 insertions, 0 deletions

diff --git a/tools/lib/api/cpu.c b/tools/lib/api/cpu.c
new file mode 100644
index 000000000000..8c6489356e3a
--- /dev/null
+++ b/tools/lib/api/cpu.c
@@ -0,0 +1,18 @@
+#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);
+}