| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame^] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 2 | #ifndef __CPUPOWER_HELPERS_SYSFS_H__ |
| 3 | #define __CPUPOWER_HELPERS_SYSFS_H__ |
| 4 | |
| 5 | #define PATH_TO_CPU "/sys/devices/system/cpu/" |
| 6 | #define MAX_LINE_LEN 255 |
| 7 | #define SYSFS_PATH_MAX 255 |
| 8 | |
| 9 | extern unsigned int sysfs_read_file(const char *path, char *buf, size_t buflen); |
| 10 | |
| 11 | extern unsigned int sysfs_idlestate_file_exists(unsigned int cpu, |
| 12 | unsigned int idlestate, |
| 13 | const char *fname); |
| 14 | |
| 15 | extern int sysfs_is_cpu_online(unsigned int cpu); |
| 16 | |
| 17 | extern int sysfs_is_idlestate_disabled(unsigned int cpu, |
| 18 | unsigned int idlestate); |
| 19 | extern int sysfs_idlestate_disable(unsigned int cpu, unsigned int idlestate, |
| 20 | unsigned int disable); |
| 21 | extern unsigned long sysfs_get_idlestate_latency(unsigned int cpu, |
| 22 | unsigned int idlestate); |
| 23 | extern unsigned long sysfs_get_idlestate_usage(unsigned int cpu, |
| 24 | unsigned int idlestate); |
| 25 | extern unsigned long long sysfs_get_idlestate_time(unsigned int cpu, |
| 26 | unsigned int idlestate); |
| 27 | extern char *sysfs_get_idlestate_name(unsigned int cpu, |
| 28 | unsigned int idlestate); |
| 29 | extern char *sysfs_get_idlestate_desc(unsigned int cpu, |
| 30 | unsigned int idlestate); |
| 31 | extern unsigned int sysfs_get_idlestate_count(unsigned int cpu); |
| 32 | |
| 33 | extern char *sysfs_get_cpuidle_governor(void); |
| 34 | extern char *sysfs_get_cpuidle_driver(void); |
| 35 | |
| 36 | extern int sysfs_get_sched(const char *smt_mc); |
| 37 | extern int sysfs_set_sched(const char *smt_mc, int val); |
| 38 | |
| 39 | #endif /* __CPUPOWER_HELPERS_SYSFS_H__ */ |