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8b094cd0 TG |
1 | #ifndef _LINUX_TIMEKEEPING_H |
2 | #define _LINUX_TIMEKEEPING_H | |
3 | ||
4 | /* Included from linux/ktime.h */ | |
5 | ||
6 | void timekeeping_init(void); | |
7 | extern int timekeeping_suspended; | |
8 | ||
9 | /* | |
10 | * Get and set timeofday | |
11 | */ | |
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); | |
16 | ||
17 | /* | |
18 | * Kernel time accessors | |
19 | */ | |
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); | |
24 | ||
25 | /* | |
26 | * timespec based interfaces | |
27 | */ | |
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); | |
d6d29896 TG |
32 | extern void ktime_get_ts64(struct timespec64 *ts); |
33 | ||
34 | extern int __getnstimeofday64(struct timespec64 *tv); | |
35 | extern void getnstimeofday64(struct timespec64 *tv); | |
36 | ||
37 | #if BITS_PER_LONG == 64 | |
38 | static inline int __getnstimeofday(struct timespec *ts) | |
39 | { | |
40 | return __getnstimeofday64(ts); | |
41 | } | |
42 | ||
43 | static inline void getnstimeofday(struct timespec *ts) | |
44 | { | |
45 | getnstimeofday64(ts); | |
46 | } | |
47 | ||
48 | static inline void ktime_get_ts(struct timespec *ts) | |
49 | { | |
50 | ktime_get_ts64(ts); | |
51 | } | |
52 | ||
53 | static inline void ktime_get_real_ts(struct timespec *ts) | |
54 | { | |
55 | getnstimeofday64(ts); | |
56 | } | |
57 | ||
58 | #else | |
59 | static inline int __getnstimeofday(struct timespec *ts) | |
60 | { | |
61 | struct timespec64 ts64; | |
62 | int ret = __getnstimeofday64(&ts64); | |
63 | ||
64 | *ts = timespec64_to_timespec(ts64); | |
65 | return ret; | |
66 | } | |
67 | ||
68 | static inline void getnstimeofday(struct timespec *ts) | |
69 | { | |
70 | struct timespec64 ts64; | |
71 | ||
72 | getnstimeofday64(&ts64); | |
73 | *ts = timespec64_to_timespec(ts64); | |
74 | } | |
75 | ||
76 | static inline void ktime_get_ts(struct timespec *ts) | |
77 | { | |
78 | struct timespec64 ts64; | |
79 | ||
80 | ktime_get_ts64(&ts64); | |
81 | *ts = timespec64_to_timespec(ts64); | |
82 | } | |
83 | ||
84 | static inline void ktime_get_real_ts(struct timespec *ts) | |
85 | { | |
86 | struct timespec64 ts64; | |
87 | ||
88 | getnstimeofday64(&ts64); | |
89 | *ts = timespec64_to_timespec(ts64); | |
90 | } | |
91 | #endif | |
8b094cd0 | 92 | |
8b094cd0 TG |
93 | extern void getboottime(struct timespec *ts); |
94 | ||
95 | #define do_posix_clock_monotonic_gettime(ts) ktime_get_ts(ts) | |
d6d29896 | 96 | #define ktime_get_real_ts64(ts) getnstimeofday64(ts) |
8b094cd0 TG |
97 | |
98 | /* | |
99 | * ktime_t based interfaces | |
100 | */ | |
0077dc60 TG |
101 | |
102 | enum tk_offsets { | |
103 | TK_OFFS_REAL, | |
104 | TK_OFFS_BOOT, | |
105 | TK_OFFS_TAI, | |
106 | TK_OFFS_MAX, | |
107 | }; | |
108 | ||
8b094cd0 | 109 | extern ktime_t ktime_get(void); |
0077dc60 | 110 | extern ktime_t ktime_get_with_offset(enum tk_offsets offs); |
8b094cd0 TG |
111 | extern ktime_t ktime_get_boottime(void); |
112 | extern ktime_t ktime_get_monotonic_offset(void); | |
113 | extern ktime_t ktime_get_clocktai(void); | |
114 | ||
f5264d5d TG |
115 | /** |
116 | * ktime_get_real - get the real (wall-) time in ktime_t format | |
117 | */ | |
118 | static inline ktime_t ktime_get_real(void) | |
119 | { | |
120 | return ktime_get_with_offset(TK_OFFS_REAL); | |
121 | } | |
122 | ||
8b094cd0 TG |
123 | /* |
124 | * RTC specific | |
125 | */ | |
126 | extern void timekeeping_inject_sleeptime(struct timespec *delta); | |
127 | ||
128 | /* | |
129 | * PPS accessor | |
130 | */ | |
131 | extern void getnstime_raw_and_real(struct timespec *ts_raw, | |
132 | struct timespec *ts_real); | |
133 | ||
134 | /* | |
135 | * Persistent clock related interfaces | |
136 | */ | |
137 | extern bool persistent_clock_exist; | |
138 | extern int persistent_clock_is_local; | |
139 | ||
140 | static inline bool has_persistent_clock(void) | |
141 | { | |
142 | return persistent_clock_exist; | |
143 | } | |
144 | ||
145 | extern void read_persistent_clock(struct timespec *ts); | |
146 | extern void read_boot_clock(struct timespec *ts); | |
147 | extern int update_persistent_clock(struct timespec now); | |
148 | ||
149 | ||
150 | #endif |