1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _KERNEL_TIME_TIMEKEEPING_H
3 #define _KERNEL_TIME_TIMEKEEPING_H
5 * Internal interfaces for kernel/time/
7 extern ktime_t ktime_get_update_offsets_now(unsigned int *cwsseq,
12 extern int timekeeping_valid_for_hres(void);
13 extern u64 timekeeping_max_deferment(void);
14 extern void timekeeping_warp_clock(void);
15 extern int timekeeping_suspend(void);
16 extern void timekeeping_resume(void);
17 #ifdef CONFIG_GENERIC_SCHED_CLOCK
18 extern int sched_clock_suspend(void);
19 extern void sched_clock_resume(void);
21 static inline int sched_clock_suspend(void) { return 0; }
22 static inline void sched_clock_resume(void) { }
25 extern void update_process_times(int user);
26 extern void do_timer(unsigned long ticks);
27 extern void update_wall_time(void);
29 extern raw_spinlock_t jiffies_lock;
30 extern seqcount_raw_spinlock_t jiffies_seq;
32 #define CS_NAME_LEN 32