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Greg Kroah-Hartmanb2441312017-11-01 15:07:57 +01001/* SPDX-License-Identifier: GPL-2.0 */
Thomas Gleixnerbab0aae92017-05-30 23:15:41 +02002#define TIMER_RETRY 1
3
4struct k_clock {
Thomas Gleixner30802942017-05-30 23:15:45 +02005 int (*clock_getres)(const clockid_t which_clock,
6 struct timespec64 *tp);
7 int (*clock_set)(const clockid_t which_clock,
8 const struct timespec64 *tp);
9 int (*clock_get)(const clockid_t which_clock,
10 struct timespec64 *tp);
Deepa Dinamaniead25412018-07-02 22:44:21 -070011 int (*clock_adj)(const clockid_t which_clock, struct __kernel_timex *tx);
Thomas Gleixner30802942017-05-30 23:15:45 +020012 int (*timer_create)(struct k_itimer *timer);
13 int (*nsleep)(const clockid_t which_clock, int flags,
Thomas Gleixner938e7cf2017-06-13 23:34:33 +020014 const struct timespec64 *);
Thomas Gleixner30802942017-05-30 23:15:45 +020015 int (*timer_set)(struct k_itimer *timr, int flags,
16 struct itimerspec64 *new_setting,
17 struct itimerspec64 *old_setting);
18 int (*timer_del)(struct k_itimer *timr);
19 void (*timer_get)(struct k_itimer *timr,
20 struct itimerspec64 *cur_setting);
21 void (*timer_rearm)(struct k_itimer *timr);
Thomas Gleixner6fec64e2018-06-26 15:21:31 +020022 s64 (*timer_forward)(struct k_itimer *timr, ktime_t now);
Thomas Gleixner63841b22017-05-30 23:15:49 +020023 ktime_t (*timer_remaining)(struct k_itimer *timr, ktime_t now);
Thomas Gleixner525b8ed2017-05-30 23:15:52 +020024 int (*timer_try_to_cancel)(struct k_itimer *timr);
25 void (*timer_arm)(struct k_itimer *timr, ktime_t expires,
26 bool absolute, bool sigev_none);
Thomas Gleixnerbab0aae92017-05-30 23:15:41 +020027};
28
29extern const struct k_clock clock_posix_cpu;
30extern const struct k_clock clock_posix_dynamic;
31extern const struct k_clock clock_process;
32extern const struct k_clock clock_thread;
33extern const struct k_clock alarm_clock;
34
35int posix_timer_event(struct k_itimer *timr, int si_private);
Thomas Gleixnerf2c45802017-05-30 23:15:59 +020036
37void common_timer_get(struct k_itimer *timr, struct itimerspec64 *cur_setting);
38int common_timer_set(struct k_itimer *timr, int flags,
39 struct itimerspec64 *new_setting,
40 struct itimerspec64 *old_setting);
41int common_timer_del(struct k_itimer *timer);