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Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
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linux
1#ifndef __CPUPOWER_HELPERS_SYSFS_H__
2#define __CPUPOWER_HELPERS_SYSFS_H__
3
4#define PATH_TO_CPU "/sys/devices/system/cpu/"
5#define MAX_LINE_LEN 255
6#define SYSFS_PATH_MAX 255
7
8extern unsigned int sysfs_read_file(const char *path, char *buf, size_t buflen);
9
10extern int sysfs_is_cpu_online(unsigned int cpu);
11
12extern unsigned long sysfs_get_idlestate_latency(unsigned int cpu,
13 unsigned int idlestate);
14extern unsigned long sysfs_get_idlestate_usage(unsigned int cpu,
15 unsigned int idlestate);
16extern unsigned long long sysfs_get_idlestate_time(unsigned int cpu,
17 unsigned int idlestate);
18extern char *sysfs_get_idlestate_name(unsigned int cpu,
19 unsigned int idlestate);
20extern char *sysfs_get_idlestate_desc(unsigned int cpu,
21 unsigned int idlestate);
22extern int sysfs_get_idlestate_count(unsigned int cpu);
23
24extern char *sysfs_get_cpuidle_governor(void);
25extern char *sysfs_get_cpuidle_driver(void);
26
27extern int sysfs_get_sched(const char *smt_mc);
28extern int sysfs_set_sched(const char *smt_mc, int val);
29
30#endif /* __CPUPOWER_HELPERS_SYSFS_H__ */