xref: /openbmc/linux/kernel/time/posix-timers.h (revision ec8f954a)
1b2441318SGreg Kroah-Hartman /* SPDX-License-Identifier: GPL-2.0 */
2bab0aae9SThomas Gleixner #define TIMER_RETRY 1
3bab0aae9SThomas Gleixner 
4bab0aae9SThomas Gleixner struct k_clock {
530802945SThomas Gleixner 	int	(*clock_getres)(const clockid_t which_clock,
630802945SThomas Gleixner 				struct timespec64 *tp);
7bab0aae9SThomas Gleixner 	int	(*clock_set)(const clockid_t which_clock,
8bab0aae9SThomas Gleixner 			     const struct timespec64 *tp);
930802945SThomas Gleixner 	int	(*clock_get)(const clockid_t which_clock,
1030802945SThomas Gleixner 			     struct timespec64 *tp);
11ead25417SDeepa Dinamani 	int	(*clock_adj)(const clockid_t which_clock, struct __kernel_timex *tx);
12bab0aae9SThomas Gleixner 	int	(*timer_create)(struct k_itimer *timer);
13bab0aae9SThomas Gleixner 	int	(*nsleep)(const clockid_t which_clock, int flags,
14938e7cf2SThomas Gleixner 			  const struct timespec64 *);
15bab0aae9SThomas Gleixner 	int	(*timer_set)(struct k_itimer *timr, int flags,
16bab0aae9SThomas Gleixner 			     struct itimerspec64 *new_setting,
17bab0aae9SThomas Gleixner 			     struct itimerspec64 *old_setting);
18bab0aae9SThomas Gleixner 	int	(*timer_del)(struct k_itimer *timr);
19bab0aae9SThomas Gleixner 	void	(*timer_get)(struct k_itimer *timr,
20bab0aae9SThomas Gleixner 			     struct itimerspec64 *cur_setting);
2130802945SThomas Gleixner 	void	(*timer_rearm)(struct k_itimer *timr);
226fec64e1SThomas Gleixner 	s64	(*timer_forward)(struct k_itimer *timr, ktime_t now);
2363841b2aSThomas Gleixner 	ktime_t	(*timer_remaining)(struct k_itimer *timr, ktime_t now);
24525b8ed9SThomas Gleixner 	int	(*timer_try_to_cancel)(struct k_itimer *timr);
25525b8ed9SThomas Gleixner 	void	(*timer_arm)(struct k_itimer *timr, ktime_t expires,
26525b8ed9SThomas Gleixner 			     bool absolute, bool sigev_none);
27ec8f954aSThomas Gleixner 	void	(*timer_wait_running)(struct k_itimer *timr);
28bab0aae9SThomas Gleixner };
29bab0aae9SThomas Gleixner 
30bab0aae9SThomas Gleixner extern const struct k_clock clock_posix_cpu;
31bab0aae9SThomas Gleixner extern const struct k_clock clock_posix_dynamic;
32bab0aae9SThomas Gleixner extern const struct k_clock clock_process;
33bab0aae9SThomas Gleixner extern const struct k_clock clock_thread;
34bab0aae9SThomas Gleixner extern const struct k_clock alarm_clock;
35bab0aae9SThomas Gleixner 
36bab0aae9SThomas Gleixner int posix_timer_event(struct k_itimer *timr, int si_private);
37f2c45807SThomas Gleixner 
38f2c45807SThomas Gleixner void common_timer_get(struct k_itimer *timr, struct itimerspec64 *cur_setting);
39f2c45807SThomas Gleixner int common_timer_set(struct k_itimer *timr, int flags,
40f2c45807SThomas Gleixner 		     struct itimerspec64 *new_setting,
41f2c45807SThomas Gleixner 		     struct itimerspec64 *old_setting);
42f2c45807SThomas Gleixner int common_timer_del(struct k_itimer *timer);
43