tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
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 unsigned int sysfs_idlestate_file_exists(unsigned int cpu,
11 unsigned int idlestate,
12 const char *fname);
13
14extern int sysfs_is_cpu_online(unsigned int cpu);
15
16extern int sysfs_is_idlestate_disabled(unsigned int cpu,
17 unsigned int idlestate);
18extern int sysfs_idlestate_disable(unsigned int cpu, unsigned int idlestate,
19 unsigned int disable);
20extern unsigned long sysfs_get_idlestate_latency(unsigned int cpu,
21 unsigned int idlestate);
22extern unsigned long sysfs_get_idlestate_usage(unsigned int cpu,
23 unsigned int idlestate);
24extern unsigned long long sysfs_get_idlestate_time(unsigned int cpu,
25 unsigned int idlestate);
26extern char *sysfs_get_idlestate_name(unsigned int cpu,
27 unsigned int idlestate);
28extern char *sysfs_get_idlestate_desc(unsigned int cpu,
29 unsigned int idlestate);
30extern unsigned int sysfs_get_idlestate_count(unsigned int cpu);
31
32extern char *sysfs_get_cpuidle_governor(void);
33extern char *sysfs_get_cpuidle_driver(void);
34
35extern int sysfs_get_sched(const char *smt_mc);
36extern int sysfs_set_sched(const char *smt_mc, int val);
37
38#endif /* __CPUPOWER_HELPERS_SYSFS_H__ */