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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); | |
21f7eca5 | 13 | extern int do_settimeofday64(const struct timespec64 *ts); |
8b094cd0 TG |
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); | |
8758a240 | 21 | struct timespec64 current_kernel_time64(void); |
8b094cd0 TG |
22 | /* does not take xtime_lock */ |
23 | struct timespec __current_kernel_time(void); | |
24 | ||
8758a240 BW |
25 | static inline struct timespec current_kernel_time(void) |
26 | { | |
27 | struct timespec64 now = current_kernel_time64(); | |
28 | ||
29 | return timespec64_to_timespec(now); | |
30 | } | |
31 | ||
8b094cd0 TG |
32 | /* |
33 | * timespec based interfaces | |
34 | */ | |
334334b5 | 35 | struct timespec64 get_monotonic_coarse64(void); |
cdba2ec5 | 36 | extern void getrawmonotonic64(struct timespec64 *ts); |
d6d29896 | 37 | extern void ktime_get_ts64(struct timespec64 *ts); |
9e3680b1 | 38 | extern time64_t ktime_get_seconds(void); |
dbe7aa62 | 39 | extern time64_t ktime_get_real_seconds(void); |
d6d29896 TG |
40 | |
41 | extern int __getnstimeofday64(struct timespec64 *tv); | |
42 | extern void getnstimeofday64(struct timespec64 *tv); | |
d08c0cdd | 43 | extern void getboottime64(struct timespec64 *ts); |
d6d29896 TG |
44 | |
45 | #if BITS_PER_LONG == 64 | |
21f7eca5 | 46 | /** |
47 | * Deprecated. Use do_settimeofday64(). | |
48 | */ | |
49 | static inline int do_settimeofday(const struct timespec *ts) | |
50 | { | |
51 | return do_settimeofday64(ts); | |
52 | } | |
53 | ||
d6d29896 TG |
54 | static inline int __getnstimeofday(struct timespec *ts) |
55 | { | |
56 | return __getnstimeofday64(ts); | |
57 | } | |
58 | ||
59 | static inline void getnstimeofday(struct timespec *ts) | |
60 | { | |
61 | getnstimeofday64(ts); | |
62 | } | |
63 | ||
64 | static inline void ktime_get_ts(struct timespec *ts) | |
65 | { | |
66 | ktime_get_ts64(ts); | |
67 | } | |
68 | ||
69 | static inline void ktime_get_real_ts(struct timespec *ts) | |
70 | { | |
71 | getnstimeofday64(ts); | |
72 | } | |
73 | ||
cdba2ec5 JS |
74 | static inline void getrawmonotonic(struct timespec *ts) |
75 | { | |
76 | getrawmonotonic64(ts); | |
77 | } | |
78 | ||
334334b5 JS |
79 | static inline struct timespec get_monotonic_coarse(void) |
80 | { | |
81 | return get_monotonic_coarse64(); | |
82 | } | |
d08c0cdd JS |
83 | |
84 | static inline void getboottime(struct timespec *ts) | |
85 | { | |
86 | return getboottime64(ts); | |
87 | } | |
d6d29896 | 88 | #else |
21f7eca5 | 89 | /** |
90 | * Deprecated. Use do_settimeofday64(). | |
91 | */ | |
92 | static inline int do_settimeofday(const struct timespec *ts) | |
93 | { | |
94 | struct timespec64 ts64; | |
95 | ||
96 | ts64 = timespec_to_timespec64(*ts); | |
97 | return do_settimeofday64(&ts64); | |
98 | } | |
99 | ||
d6d29896 TG |
100 | static inline int __getnstimeofday(struct timespec *ts) |
101 | { | |
102 | struct timespec64 ts64; | |
103 | int ret = __getnstimeofday64(&ts64); | |
104 | ||
105 | *ts = timespec64_to_timespec(ts64); | |
106 | return ret; | |
107 | } | |
108 | ||
109 | static inline void getnstimeofday(struct timespec *ts) | |
110 | { | |
111 | struct timespec64 ts64; | |
112 | ||
113 | getnstimeofday64(&ts64); | |
114 | *ts = timespec64_to_timespec(ts64); | |
115 | } | |
116 | ||
117 | static inline void ktime_get_ts(struct timespec *ts) | |
118 | { | |
119 | struct timespec64 ts64; | |
120 | ||
121 | ktime_get_ts64(&ts64); | |
122 | *ts = timespec64_to_timespec(ts64); | |
123 | } | |
124 | ||
125 | static inline void ktime_get_real_ts(struct timespec *ts) | |
126 | { | |
127 | struct timespec64 ts64; | |
128 | ||
129 | getnstimeofday64(&ts64); | |
130 | *ts = timespec64_to_timespec(ts64); | |
131 | } | |
cdba2ec5 JS |
132 | |
133 | static inline void getrawmonotonic(struct timespec *ts) | |
134 | { | |
135 | struct timespec64 ts64; | |
136 | ||
137 | getrawmonotonic64(&ts64); | |
138 | *ts = timespec64_to_timespec(ts64); | |
139 | } | |
334334b5 JS |
140 | |
141 | static inline struct timespec get_monotonic_coarse(void) | |
142 | { | |
143 | return timespec64_to_timespec(get_monotonic_coarse64()); | |
144 | } | |
8b094cd0 | 145 | |
d08c0cdd JS |
146 | static inline void getboottime(struct timespec *ts) |
147 | { | |
148 | struct timespec64 ts64; | |
149 | ||
150 | getboottime64(&ts64); | |
151 | *ts = timespec64_to_timespec(ts64); | |
152 | } | |
153 | #endif | |
8b094cd0 | 154 | |
d6d29896 | 155 | #define ktime_get_real_ts64(ts) getnstimeofday64(ts) |
8b094cd0 TG |
156 | |
157 | /* | |
158 | * ktime_t based interfaces | |
159 | */ | |
0077dc60 TG |
160 | |
161 | enum tk_offsets { | |
162 | TK_OFFS_REAL, | |
163 | TK_OFFS_BOOT, | |
164 | TK_OFFS_TAI, | |
165 | TK_OFFS_MAX, | |
166 | }; | |
167 | ||
8b094cd0 | 168 | extern ktime_t ktime_get(void); |
0077dc60 | 169 | extern ktime_t ktime_get_with_offset(enum tk_offsets offs); |
9a6b5197 | 170 | extern ktime_t ktime_mono_to_any(ktime_t tmono, enum tk_offsets offs); |
f519b1a2 | 171 | extern ktime_t ktime_get_raw(void); |
6374f912 | 172 | extern u32 ktime_get_resolution_ns(void); |
8b094cd0 | 173 | |
f5264d5d TG |
174 | /** |
175 | * ktime_get_real - get the real (wall-) time in ktime_t format | |
176 | */ | |
177 | static inline ktime_t ktime_get_real(void) | |
178 | { | |
179 | return ktime_get_with_offset(TK_OFFS_REAL); | |
180 | } | |
181 | ||
b82c817e TG |
182 | /** |
183 | * ktime_get_boottime - Returns monotonic time since boot in ktime_t format | |
184 | * | |
185 | * This is similar to CLOCK_MONTONIC/ktime_get, but also includes the | |
186 | * time spent in suspend. | |
187 | */ | |
188 | static inline ktime_t ktime_get_boottime(void) | |
189 | { | |
190 | return ktime_get_with_offset(TK_OFFS_BOOT); | |
191 | } | |
192 | ||
afab07c0 TG |
193 | /** |
194 | * ktime_get_clocktai - Returns the TAI time of day in ktime_t format | |
195 | */ | |
196 | static inline ktime_t ktime_get_clocktai(void) | |
197 | { | |
198 | return ktime_get_with_offset(TK_OFFS_TAI); | |
199 | } | |
200 | ||
9a6b5197 TG |
201 | /** |
202 | * ktime_mono_to_real - Convert monotonic time to clock realtime | |
203 | */ | |
204 | static inline ktime_t ktime_mono_to_real(ktime_t mono) | |
205 | { | |
206 | return ktime_mono_to_any(mono, TK_OFFS_REAL); | |
207 | } | |
208 | ||
897994e3 TG |
209 | static inline u64 ktime_get_ns(void) |
210 | { | |
211 | return ktime_to_ns(ktime_get()); | |
212 | } | |
213 | ||
214 | static inline u64 ktime_get_real_ns(void) | |
215 | { | |
216 | return ktime_to_ns(ktime_get_real()); | |
217 | } | |
218 | ||
219 | static inline u64 ktime_get_boot_ns(void) | |
220 | { | |
221 | return ktime_to_ns(ktime_get_boottime()); | |
222 | } | |
223 | ||
fe5fba05 PZ |
224 | static inline u64 ktime_get_tai_ns(void) |
225 | { | |
226 | return ktime_to_ns(ktime_get_clocktai()); | |
227 | } | |
228 | ||
f519b1a2 TG |
229 | static inline u64 ktime_get_raw_ns(void) |
230 | { | |
231 | return ktime_to_ns(ktime_get_raw()); | |
232 | } | |
233 | ||
4396e058 | 234 | extern u64 ktime_get_mono_fast_ns(void); |
f09cb9a1 | 235 | extern u64 ktime_get_raw_fast_ns(void); |
4396e058 | 236 | |
48f18fd6 TG |
237 | /* |
238 | * Timespec interfaces utilizing the ktime based ones | |
239 | */ | |
240 | static inline void get_monotonic_boottime(struct timespec *ts) | |
241 | { | |
242 | *ts = ktime_to_timespec(ktime_get_boottime()); | |
243 | } | |
244 | ||
2e0c78ee JS |
245 | static inline void get_monotonic_boottime64(struct timespec64 *ts) |
246 | { | |
247 | *ts = ktime_to_timespec64(ktime_get_boottime()); | |
248 | } | |
249 | ||
61edec81 TG |
250 | static inline void timekeeping_clocktai(struct timespec *ts) |
251 | { | |
252 | *ts = ktime_to_timespec(ktime_get_clocktai()); | |
253 | } | |
254 | ||
8b094cd0 TG |
255 | /* |
256 | * RTC specific | |
257 | */ | |
0fa88cb4 XP |
258 | extern bool timekeeping_rtc_skipsuspend(void); |
259 | extern bool timekeeping_rtc_skipresume(void); | |
260 | ||
04d90890 | 261 | extern void timekeeping_inject_sleeptime64(struct timespec64 *delta); |
262 | ||
8b094cd0 TG |
263 | /* |
264 | * PPS accessor | |
265 | */ | |
071eee45 AB |
266 | extern void ktime_get_raw_and_real_ts64(struct timespec64 *ts_raw, |
267 | struct timespec64 *ts_real); | |
8b094cd0 TG |
268 | |
269 | /* | |
270 | * Persistent clock related interfaces | |
271 | */ | |
8b094cd0 TG |
272 | extern int persistent_clock_is_local; |
273 | ||
8b094cd0 | 274 | extern void read_persistent_clock(struct timespec *ts); |
2ee96632 | 275 | extern void read_persistent_clock64(struct timespec64 *ts); |
9a806ddb | 276 | extern void read_boot_clock64(struct timespec64 *ts); |
8b094cd0 | 277 | extern int update_persistent_clock(struct timespec now); |
3c00a1fe | 278 | extern int update_persistent_clock64(struct timespec64 now); |
8b094cd0 TG |
279 | |
280 | ||
281 | #endif |