1b2441318SGreg Kroah-Hartman /* SPDX-License-Identifier: GPL-2.0 */ 2bab0aae9SThomas Gleixner #define TIMER_RETRY 1 3bab0aae9SThomas Gleixner 41550dde8SThomas Gleixner enum posix_timer_state { 51550dde8SThomas Gleixner POSIX_TIMER_DISARMED, 61550dde8SThomas Gleixner POSIX_TIMER_ARMED, 71550dde8SThomas Gleixner POSIX_TIMER_REQUEUE_PENDING, 81550dde8SThomas Gleixner }; 91550dde8SThomas Gleixner 10bab0aae9SThomas Gleixner struct k_clock { 1130802945SThomas Gleixner int (*clock_getres)(const clockid_t which_clock, 1230802945SThomas Gleixner struct timespec64 *tp); 13bab0aae9SThomas Gleixner int (*clock_set)(const clockid_t which_clock, 14bab0aae9SThomas Gleixner const struct timespec64 *tp); 159c71a2e8SAndrei Vagin /* Returns the clock value in the current time namespace. */ 16819a95feSAndrei Vagin int (*clock_get_timespec)(const clockid_t which_clock, 1730802945SThomas Gleixner struct timespec64 *tp); 189c71a2e8SAndrei Vagin /* Returns the clock value in the root time namespace. */ 199c71a2e8SAndrei Vagin ktime_t (*clock_get_ktime)(const clockid_t which_clock); 20ead25417SDeepa Dinamani int (*clock_adj)(const clockid_t which_clock, struct __kernel_timex *tx); 21bab0aae9SThomas Gleixner int (*timer_create)(struct k_itimer *timer); 22bab0aae9SThomas Gleixner int (*nsleep)(const clockid_t which_clock, int flags, 23938e7cf2SThomas Gleixner const struct timespec64 *); 24bab0aae9SThomas Gleixner int (*timer_set)(struct k_itimer *timr, int flags, 25bab0aae9SThomas Gleixner struct itimerspec64 *new_setting, 26bab0aae9SThomas Gleixner struct itimerspec64 *old_setting); 27bab0aae9SThomas Gleixner int (*timer_del)(struct k_itimer *timr); 28bab0aae9SThomas Gleixner void (*timer_get)(struct k_itimer *timr, 29bab0aae9SThomas Gleixner struct itimerspec64 *cur_setting); 3030802945SThomas Gleixner void (*timer_rearm)(struct k_itimer *timr); 316fec64e1SThomas Gleixner s64 (*timer_forward)(struct k_itimer *timr, ktime_t now); 3263841b2aSThomas Gleixner ktime_t (*timer_remaining)(struct k_itimer *timr, ktime_t now); 33525b8ed9SThomas Gleixner int (*timer_try_to_cancel)(struct k_itimer *timr); 34525b8ed9SThomas Gleixner void (*timer_arm)(struct k_itimer *timr, ktime_t expires, 35525b8ed9SThomas Gleixner bool absolute, bool sigev_none); 36ec8f954aSThomas Gleixner void (*timer_wait_running)(struct k_itimer *timr); 37bab0aae9SThomas Gleixner }; 38bab0aae9SThomas Gleixner 39bab0aae9SThomas Gleixner extern const struct k_clock clock_posix_cpu; 40bab0aae9SThomas Gleixner extern const struct k_clock clock_posix_dynamic; 41bab0aae9SThomas Gleixner extern const struct k_clock clock_process; 42bab0aae9SThomas Gleixner extern const struct k_clock clock_thread; 43bab0aae9SThomas Gleixner extern const struct k_clock alarm_clock; 44bab0aae9SThomas Gleixner extern const struct k_clock clock_aux; 45*7a66f72bSThomas Gleixner 46f2c45807SThomas Gleixner void posix_timer_queue_signal(struct k_itimer *timr); 47f2c45807SThomas Gleixner 48f2c45807SThomas Gleixner void common_timer_get(struct k_itimer *timr, struct itimerspec64 *cur_setting); 49f2c45807SThomas Gleixner int common_timer_set(struct k_itimer *timr, int flags, 50f2c45807SThomas Gleixner struct itimerspec64 *new_setting, 5120f13385SThomas Gleixner struct itimerspec64 *old_setting); 52f2c45807SThomas Gleixner void posix_timer_set_common(struct k_itimer *timer, struct itimerspec64 *new_setting); 53 int common_timer_del(struct k_itimer *timer); 54