kernel/time/timekeeping.h

b2441318SGreg Kroah-Hartman/* SPDX-License-Identifier: GPL-2.0 */
8b094cd0SThomas Gleixner#ifndef _KERNEL_TIME_TIMEKEEPING_H
8b094cd0SThomas Gleixner#define _KERNEL_TIME_TIMEKEEPING_H
8b094cd0SThomas Gleixner/*
8b094cd0SThomas Gleixner * Internal interfaces for kernel/time/
8b094cd0SThomas Gleixner */
868a3e91SThomas Gleixnerextern ktime_t ktime_get_update_offsets_now(unsigned int *cwsseq,
868a3e91SThomas Gleixner					    ktime_t *offs_real,
a3ed0e43SThomas Gleixner					    ktime_t *offs_boot,
8b094cd0SThomas Gleixner					    ktime_t *offs_tai);
8b094cd0SThomas Gleixner
8b094cd0SThomas Gleixnerextern int timekeeping_valid_for_hres(void);
8b094cd0SThomas Gleixnerextern u64 timekeeping_max_deferment(void);
e0956dccSArnd Bergmannextern void timekeeping_warp_clock(void);
124cf911SRafael J. Wysockiextern int timekeeping_suspend(void);
124cf911SRafael J. Wysockiextern void timekeeping_resume(void);
3f2552f7SChang-An Chen#ifdef CONFIG_GENERIC_SCHED_CLOCK
3f2552f7SChang-An Chenextern int sched_clock_suspend(void);
3f2552f7SChang-An Chenextern void sched_clock_resume(void);
3f2552f7SChang-An Chen#else
3f2552f7SChang-An Chenstatic inline int sched_clock_suspend(void) { return 0; }
3f2552f7SChang-An Chenstatic inline void sched_clock_resume(void) { }
3f2552f7SChang-An Chen#endif
8b094cd0SThomas Gleixner
*56cc7b8aSArnd Bergmannextern void update_process_times(int user);
bfb83b27SThomas Gleixnerextern void do_timer(unsigned long ticks);
bfb83b27SThomas Gleixnerextern void update_wall_time(void);
bfb83b27SThomas Gleixner
e5d4d175SThomas Gleixnerextern raw_spinlock_t jiffies_lock;
1a2b85f1SDavidlohr Buesoextern seqcount_raw_spinlock_t jiffies_seq;
bfb83b27SThomas Gleixner
bfb83b27SThomas Gleixner#define CS_NAME_LEN	32
bfb83b27SThomas Gleixner
8b094cd0SThomas Gleixner#endif