1 #ifndef _LINUX_TIMEKEEPING_H
2 #define _LINUX_TIMEKEEPING_H
4 /* Included from linux/ktime.h */
6 void timekeeping_init(void);
7 extern int timekeeping_suspended
;
10 * Get and set timeofday
12 extern void do_gettimeofday(struct timeval
*tv
);
13 extern int do_settimeofday(const struct timespec
*tv
);
14 extern int do_sys_settimeofday(const struct timespec
*tv
,
15 const struct timezone
*tz
);
18 * Kernel time accessors
20 unsigned long get_seconds(void);
21 struct timespec
current_kernel_time(void);
22 /* does not take xtime_lock */
23 struct timespec
__current_kernel_time(void);
26 * timespec based interfaces
28 struct timespec
get_monotonic_coarse(void);
29 extern void getrawmonotonic(struct timespec
*ts
);
30 extern void monotonic_to_bootbased(struct timespec
*ts
);
31 extern void get_monotonic_boottime(struct timespec
*ts
);
32 extern void ktime_get_ts64(struct timespec64
*ts
);
34 extern int __getnstimeofday64(struct timespec64
*tv
);
35 extern void getnstimeofday64(struct timespec64
*tv
);
37 #if BITS_PER_LONG == 64
38 static inline int __getnstimeofday(struct timespec
*ts
)
40 return __getnstimeofday64(ts
);
43 static inline void getnstimeofday(struct timespec
*ts
)
48 static inline void ktime_get_ts(struct timespec
*ts
)
53 static inline void ktime_get_real_ts(struct timespec
*ts
)
59 static inline int __getnstimeofday(struct timespec
*ts
)
61 struct timespec64 ts64
;
62 int ret
= __getnstimeofday64(&ts64
);
64 *ts
= timespec64_to_timespec(ts64
);
68 static inline void getnstimeofday(struct timespec
*ts
)
70 struct timespec64 ts64
;
72 getnstimeofday64(&ts64
);
73 *ts
= timespec64_to_timespec(ts64
);
76 static inline void ktime_get_ts(struct timespec
*ts
)
78 struct timespec64 ts64
;
80 ktime_get_ts64(&ts64
);
81 *ts
= timespec64_to_timespec(ts64
);
84 static inline void ktime_get_real_ts(struct timespec
*ts
)
86 struct timespec64 ts64
;
88 getnstimeofday64(&ts64
);
89 *ts
= timespec64_to_timespec(ts64
);
93 extern void getboottime(struct timespec
*ts
);
95 #define do_posix_clock_monotonic_gettime(ts) ktime_get_ts(ts)
96 #define ktime_get_real_ts64(ts) getnstimeofday64(ts)
99 * ktime_t based interfaces
101 extern ktime_t
ktime_get(void);
102 extern ktime_t
ktime_get_real(void);
103 extern ktime_t
ktime_get_boottime(void);
104 extern ktime_t
ktime_get_monotonic_offset(void);
105 extern ktime_t
ktime_get_clocktai(void);
110 extern void timekeeping_inject_sleeptime(struct timespec
*delta
);
115 extern void getnstime_raw_and_real(struct timespec
*ts_raw
,
116 struct timespec
*ts_real
);
119 * Persistent clock related interfaces
121 extern bool persistent_clock_exist
;
122 extern int persistent_clock_is_local
;
124 static inline bool has_persistent_clock(void)
126 return persistent_clock_exist
;
129 extern void read_persistent_clock(struct timespec
*ts
);
130 extern void read_boot_clock(struct timespec
*ts
);
131 extern int update_persistent_clock(struct timespec now
);