1 /* SPDX-License-Identifier: GPL-2.0 */ << 2 #ifndef __CPUPOWER_HELPERS_SYSFS_H__ 1 #ifndef __CPUPOWER_HELPERS_SYSFS_H__ 3 #define __CPUPOWER_HELPERS_SYSFS_H__ 2 #define __CPUPOWER_HELPERS_SYSFS_H__ 4 3 5 #define PATH_TO_CPU "/sys/devices/system/cpu/" 4 #define PATH_TO_CPU "/sys/devices/system/cpu/" 6 #define MAX_LINE_LEN 255 5 #define MAX_LINE_LEN 255 7 #define SYSFS_PATH_MAX 255 6 #define SYSFS_PATH_MAX 255 8 7 9 extern unsigned int sysfs_read_file(const char 8 extern unsigned int sysfs_read_file(const char *path, char *buf, size_t buflen); 10 9 11 extern unsigned int sysfs_idlestate_file_exist 10 extern unsigned int sysfs_idlestate_file_exists(unsigned int cpu, 12 11 unsigned int idlestate, 13 12 const char *fname); 14 13 15 extern int sysfs_is_cpu_online(unsigned int cp 14 extern int sysfs_is_cpu_online(unsigned int cpu); 16 15 17 extern int sysfs_is_idlestate_disabled(unsigne 16 extern int sysfs_is_idlestate_disabled(unsigned int cpu, 18 unsigne 17 unsigned int idlestate); 19 extern int sysfs_idlestate_disable(unsigned in 18 extern int sysfs_idlestate_disable(unsigned int cpu, unsigned int idlestate, 20 unsigned in 19 unsigned int disable); 21 extern unsigned long sysfs_get_idlestate_laten 20 extern unsigned long sysfs_get_idlestate_latency(unsigned int cpu, 22 21 unsigned int idlestate); 23 extern unsigned long sysfs_get_idlestate_usage 22 extern unsigned long sysfs_get_idlestate_usage(unsigned int cpu, 24 unsign 23 unsigned int idlestate); 25 extern unsigned long long sysfs_get_idlestate_ 24 extern unsigned long long sysfs_get_idlestate_time(unsigned int cpu, 26 25 unsigned int idlestate); 27 extern char *sysfs_get_idlestate_name(unsigned 26 extern char *sysfs_get_idlestate_name(unsigned int cpu, 28 unsigned int i 27 unsigned int idlestate); 29 extern char *sysfs_get_idlestate_desc(unsigned 28 extern char *sysfs_get_idlestate_desc(unsigned int cpu, 30 unsigned int i 29 unsigned int idlestate); 31 extern unsigned int sysfs_get_idlestate_count( 30 extern unsigned int sysfs_get_idlestate_count(unsigned int cpu); 32 31 33 extern char *sysfs_get_cpuidle_governor(void); 32 extern char *sysfs_get_cpuidle_governor(void); 34 extern char *sysfs_get_cpuidle_driver(void); 33 extern char *sysfs_get_cpuidle_driver(void); 35 34 36 extern int sysfs_get_sched(const char *smt_mc) 35 extern int sysfs_get_sched(const char *smt_mc); 37 extern int sysfs_set_sched(const char *smt_mc, 36 extern int sysfs_set_sched(const char *smt_mc, int val); 38 37 39 #endif /* __CPUPOWER_HELPERS_SYSFS_H__ */ 38 #endif /* __CPUPOWER_HELPERS_SYSFS_H__ */ 40 39
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