/* SPDX-License-Identifier: GPL-2.0 */

#ifndef _KERNEL_TIME_TIMEKEEPING_H

#define _KERNEL_TIME_TIMEKEEPING_H

/*

* Internal interfaces for kernel/time/

*/

extern ktime_t ktime_get_update_offsets_now(unsigned int *cwsseq,

ktime_t *offs_real,

ktime_t *offs_boot,

ktime_t *offs_tai);

bool ktime_expiry_to_cycles(enum clocksource_ids id, ktime_t expires_ns, u64 *cycles);

extern int timekeeping_valid_for_hres(void);

extern u64 timekeeping_max_deferment(void);

extern void timekeeping_warp_clock(void);

extern int timekeeping_suspend(void);

extern void timekeeping_resume(void);

#ifdef CONFIG_GENERIC_SCHED_CLOCK

extern int sched_clock_suspend(void);

extern void sched_clock_resume(void);

#else

static inline int sched_clock_suspend(void) { return 0; }

static inline void sched_clock_resume(void) { }

#endif

extern void update_process_times(int user);

extern void do_timer(unsigned long ticks);

extern void update_wall_time(void);

extern raw_spinlock_t jiffies_lock;

extern seqcount_raw_spinlock_t jiffies_seq;

#define CS_NAME_LEN 32

#endif