Commit | Line | Data |
---|---|---|
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); | |
d6d29896 TG |
30 | extern void ktime_get_ts64(struct timespec64 *ts); |
31 | ||
32 | extern int __getnstimeofday64(struct timespec64 *tv); | |
33 | extern void getnstimeofday64(struct timespec64 *tv); | |
34 | ||
35 | #if BITS_PER_LONG == 64 | |
36 | static inline int __getnstimeofday(struct timespec *ts) | |
37 | { | |
38 | return __getnstimeofday64(ts); | |
39 | } | |
40 | ||
41 | static inline void getnstimeofday(struct timespec *ts) | |
42 | { | |
43 | getnstimeofday64(ts); | |
44 | } | |
45 | ||
46 | static inline void ktime_get_ts(struct timespec *ts) | |
47 | { | |
48 | ktime_get_ts64(ts); | |
49 | } | |
50 | ||
51 | static inline void ktime_get_real_ts(struct timespec *ts) | |
52 | { | |
53 | getnstimeofday64(ts); | |
54 | } | |
55 | ||
56 | #else | |
57 | static inline int __getnstimeofday(struct timespec *ts) | |
58 | { | |
59 | struct timespec64 ts64; | |
60 | int ret = __getnstimeofday64(&ts64); | |
61 | ||
62 | *ts = timespec64_to_timespec(ts64); | |
63 | return ret; | |
64 | } | |
65 | ||
66 | static inline void getnstimeofday(struct timespec *ts) | |
67 | { | |
68 | struct timespec64 ts64; | |
69 | ||
70 | getnstimeofday64(&ts64); | |
71 | *ts = timespec64_to_timespec(ts64); | |
72 | } | |
73 | ||
74 | static inline void ktime_get_ts(struct timespec *ts) | |
75 | { | |
76 | struct timespec64 ts64; | |
77 | ||
78 | ktime_get_ts64(&ts64); | |
79 | *ts = timespec64_to_timespec(ts64); | |
80 | } | |
81 | ||
82 | static inline void ktime_get_real_ts(struct timespec *ts) | |
83 | { | |
84 | struct timespec64 ts64; | |
85 | ||
86 | getnstimeofday64(&ts64); | |
87 | *ts = timespec64_to_timespec(ts64); | |
88 | } | |
89 | #endif | |
8b094cd0 | 90 | |
8b094cd0 TG |
91 | extern void getboottime(struct timespec *ts); |
92 | ||
93 | #define do_posix_clock_monotonic_gettime(ts) ktime_get_ts(ts) | |
d6d29896 | 94 | #define ktime_get_real_ts64(ts) getnstimeofday64(ts) |
8b094cd0 TG |
95 | |
96 | /* | |
97 | * ktime_t based interfaces | |
98 | */ | |
0077dc60 TG |
99 | |
100 | enum tk_offsets { | |
101 | TK_OFFS_REAL, | |
102 | TK_OFFS_BOOT, | |
103 | TK_OFFS_TAI, | |
104 | TK_OFFS_MAX, | |
105 | }; | |
106 | ||
8b094cd0 | 107 | extern ktime_t ktime_get(void); |
0077dc60 | 108 | extern ktime_t ktime_get_with_offset(enum tk_offsets offs); |
9a6b5197 | 109 | extern ktime_t ktime_mono_to_any(ktime_t tmono, enum tk_offsets offs); |
f519b1a2 | 110 | extern ktime_t ktime_get_raw(void); |
8b094cd0 | 111 | |
f5264d5d TG |
112 | /** |
113 | * ktime_get_real - get the real (wall-) time in ktime_t format | |
114 | */ | |
115 | static inline ktime_t ktime_get_real(void) | |
116 | { | |
117 | return ktime_get_with_offset(TK_OFFS_REAL); | |
118 | } | |
119 | ||
b82c817e TG |
120 | /** |
121 | * ktime_get_boottime - Returns monotonic time since boot in ktime_t format | |
122 | * | |
123 | * This is similar to CLOCK_MONTONIC/ktime_get, but also includes the | |
124 | * time spent in suspend. | |
125 | */ | |
126 | static inline ktime_t ktime_get_boottime(void) | |
127 | { | |
128 | return ktime_get_with_offset(TK_OFFS_BOOT); | |
129 | } | |
130 | ||
afab07c0 TG |
131 | /** |
132 | * ktime_get_clocktai - Returns the TAI time of day in ktime_t format | |
133 | */ | |
134 | static inline ktime_t ktime_get_clocktai(void) | |
135 | { | |
136 | return ktime_get_with_offset(TK_OFFS_TAI); | |
137 | } | |
138 | ||
9a6b5197 TG |
139 | /** |
140 | * ktime_mono_to_real - Convert monotonic time to clock realtime | |
141 | */ | |
142 | static inline ktime_t ktime_mono_to_real(ktime_t mono) | |
143 | { | |
144 | return ktime_mono_to_any(mono, TK_OFFS_REAL); | |
145 | } | |
146 | ||
897994e3 TG |
147 | static inline u64 ktime_get_ns(void) |
148 | { | |
149 | return ktime_to_ns(ktime_get()); | |
150 | } | |
151 | ||
152 | static inline u64 ktime_get_real_ns(void) | |
153 | { | |
154 | return ktime_to_ns(ktime_get_real()); | |
155 | } | |
156 | ||
157 | static inline u64 ktime_get_boot_ns(void) | |
158 | { | |
159 | return ktime_to_ns(ktime_get_boottime()); | |
160 | } | |
161 | ||
f519b1a2 TG |
162 | static inline u64 ktime_get_raw_ns(void) |
163 | { | |
164 | return ktime_to_ns(ktime_get_raw()); | |
165 | } | |
166 | ||
4396e058 TG |
167 | extern u64 ktime_get_mono_fast_ns(void); |
168 | ||
48f18fd6 TG |
169 | /* |
170 | * Timespec interfaces utilizing the ktime based ones | |
171 | */ | |
172 | static inline void get_monotonic_boottime(struct timespec *ts) | |
173 | { | |
174 | *ts = ktime_to_timespec(ktime_get_boottime()); | |
175 | } | |
176 | ||
61edec81 TG |
177 | static inline void timekeeping_clocktai(struct timespec *ts) |
178 | { | |
179 | *ts = ktime_to_timespec(ktime_get_clocktai()); | |
180 | } | |
181 | ||
8b094cd0 TG |
182 | /* |
183 | * RTC specific | |
184 | */ | |
185 | extern void timekeeping_inject_sleeptime(struct timespec *delta); | |
186 | ||
187 | /* | |
188 | * PPS accessor | |
189 | */ | |
190 | extern void getnstime_raw_and_real(struct timespec *ts_raw, | |
191 | struct timespec *ts_real); | |
192 | ||
193 | /* | |
194 | * Persistent clock related interfaces | |
195 | */ | |
196 | extern bool persistent_clock_exist; | |
197 | extern int persistent_clock_is_local; | |
198 | ||
199 | static inline bool has_persistent_clock(void) | |
200 | { | |
201 | return persistent_clock_exist; | |
202 | } | |
203 | ||
204 | extern void read_persistent_clock(struct timespec *ts); | |
205 | extern void read_boot_clock(struct timespec *ts); | |
206 | extern int update_persistent_clock(struct timespec now); | |
207 | ||
208 | ||
209 | #endif |