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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); | |
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 | */ | |
334334b5 | 28 | struct timespec64 get_monotonic_coarse64(void); |
cdba2ec5 | 29 | extern void getrawmonotonic64(struct timespec64 *ts); |
d6d29896 | 30 | extern void ktime_get_ts64(struct timespec64 *ts); |
9e3680b1 | 31 | extern time64_t ktime_get_seconds(void); |
dbe7aa62 | 32 | extern time64_t ktime_get_real_seconds(void); |
d6d29896 TG |
33 | |
34 | extern int __getnstimeofday64(struct timespec64 *tv); | |
35 | extern void getnstimeofday64(struct timespec64 *tv); | |
d08c0cdd | 36 | extern void getboottime64(struct timespec64 *ts); |
d6d29896 TG |
37 | |
38 | #if BITS_PER_LONG == 64 | |
21f7eca5 | 39 | /** |
40 | * Deprecated. Use do_settimeofday64(). | |
41 | */ | |
42 | static inline int do_settimeofday(const struct timespec *ts) | |
43 | { | |
44 | return do_settimeofday64(ts); | |
45 | } | |
46 | ||
d6d29896 TG |
47 | static inline int __getnstimeofday(struct timespec *ts) |
48 | { | |
49 | return __getnstimeofday64(ts); | |
50 | } | |
51 | ||
52 | static inline void getnstimeofday(struct timespec *ts) | |
53 | { | |
54 | getnstimeofday64(ts); | |
55 | } | |
56 | ||
57 | static inline void ktime_get_ts(struct timespec *ts) | |
58 | { | |
59 | ktime_get_ts64(ts); | |
60 | } | |
61 | ||
62 | static inline void ktime_get_real_ts(struct timespec *ts) | |
63 | { | |
64 | getnstimeofday64(ts); | |
65 | } | |
66 | ||
cdba2ec5 JS |
67 | static inline void getrawmonotonic(struct timespec *ts) |
68 | { | |
69 | getrawmonotonic64(ts); | |
70 | } | |
71 | ||
334334b5 JS |
72 | static inline struct timespec get_monotonic_coarse(void) |
73 | { | |
74 | return get_monotonic_coarse64(); | |
75 | } | |
d08c0cdd JS |
76 | |
77 | static inline void getboottime(struct timespec *ts) | |
78 | { | |
79 | return getboottime64(ts); | |
80 | } | |
d6d29896 | 81 | #else |
21f7eca5 | 82 | /** |
83 | * Deprecated. Use do_settimeofday64(). | |
84 | */ | |
85 | static inline int do_settimeofday(const struct timespec *ts) | |
86 | { | |
87 | struct timespec64 ts64; | |
88 | ||
89 | ts64 = timespec_to_timespec64(*ts); | |
90 | return do_settimeofday64(&ts64); | |
91 | } | |
92 | ||
d6d29896 TG |
93 | static inline int __getnstimeofday(struct timespec *ts) |
94 | { | |
95 | struct timespec64 ts64; | |
96 | int ret = __getnstimeofday64(&ts64); | |
97 | ||
98 | *ts = timespec64_to_timespec(ts64); | |
99 | return ret; | |
100 | } | |
101 | ||
102 | static inline void getnstimeofday(struct timespec *ts) | |
103 | { | |
104 | struct timespec64 ts64; | |
105 | ||
106 | getnstimeofday64(&ts64); | |
107 | *ts = timespec64_to_timespec(ts64); | |
108 | } | |
109 | ||
110 | static inline void ktime_get_ts(struct timespec *ts) | |
111 | { | |
112 | struct timespec64 ts64; | |
113 | ||
114 | ktime_get_ts64(&ts64); | |
115 | *ts = timespec64_to_timespec(ts64); | |
116 | } | |
117 | ||
118 | static inline void ktime_get_real_ts(struct timespec *ts) | |
119 | { | |
120 | struct timespec64 ts64; | |
121 | ||
122 | getnstimeofday64(&ts64); | |
123 | *ts = timespec64_to_timespec(ts64); | |
124 | } | |
cdba2ec5 JS |
125 | |
126 | static inline void getrawmonotonic(struct timespec *ts) | |
127 | { | |
128 | struct timespec64 ts64; | |
129 | ||
130 | getrawmonotonic64(&ts64); | |
131 | *ts = timespec64_to_timespec(ts64); | |
132 | } | |
334334b5 JS |
133 | |
134 | static inline struct timespec get_monotonic_coarse(void) | |
135 | { | |
136 | return timespec64_to_timespec(get_monotonic_coarse64()); | |
137 | } | |
8b094cd0 | 138 | |
d08c0cdd JS |
139 | static inline void getboottime(struct timespec *ts) |
140 | { | |
141 | struct timespec64 ts64; | |
142 | ||
143 | getboottime64(&ts64); | |
144 | *ts = timespec64_to_timespec(ts64); | |
145 | } | |
146 | #endif | |
8b094cd0 | 147 | |
d6d29896 | 148 | #define ktime_get_real_ts64(ts) getnstimeofday64(ts) |
8b094cd0 TG |
149 | |
150 | /* | |
151 | * ktime_t based interfaces | |
152 | */ | |
0077dc60 TG |
153 | |
154 | enum tk_offsets { | |
155 | TK_OFFS_REAL, | |
156 | TK_OFFS_BOOT, | |
157 | TK_OFFS_TAI, | |
158 | TK_OFFS_MAX, | |
159 | }; | |
160 | ||
8b094cd0 | 161 | extern ktime_t ktime_get(void); |
0077dc60 | 162 | extern ktime_t ktime_get_with_offset(enum tk_offsets offs); |
9a6b5197 | 163 | extern ktime_t ktime_mono_to_any(ktime_t tmono, enum tk_offsets offs); |
f519b1a2 | 164 | extern ktime_t ktime_get_raw(void); |
6374f912 | 165 | extern u32 ktime_get_resolution_ns(void); |
8b094cd0 | 166 | |
f5264d5d TG |
167 | /** |
168 | * ktime_get_real - get the real (wall-) time in ktime_t format | |
169 | */ | |
170 | static inline ktime_t ktime_get_real(void) | |
171 | { | |
172 | return ktime_get_with_offset(TK_OFFS_REAL); | |
173 | } | |
174 | ||
b82c817e TG |
175 | /** |
176 | * ktime_get_boottime - Returns monotonic time since boot in ktime_t format | |
177 | * | |
178 | * This is similar to CLOCK_MONTONIC/ktime_get, but also includes the | |
179 | * time spent in suspend. | |
180 | */ | |
181 | static inline ktime_t ktime_get_boottime(void) | |
182 | { | |
183 | return ktime_get_with_offset(TK_OFFS_BOOT); | |
184 | } | |
185 | ||
afab07c0 TG |
186 | /** |
187 | * ktime_get_clocktai - Returns the TAI time of day in ktime_t format | |
188 | */ | |
189 | static inline ktime_t ktime_get_clocktai(void) | |
190 | { | |
191 | return ktime_get_with_offset(TK_OFFS_TAI); | |
192 | } | |
193 | ||
9a6b5197 TG |
194 | /** |
195 | * ktime_mono_to_real - Convert monotonic time to clock realtime | |
196 | */ | |
197 | static inline ktime_t ktime_mono_to_real(ktime_t mono) | |
198 | { | |
199 | return ktime_mono_to_any(mono, TK_OFFS_REAL); | |
200 | } | |
201 | ||
897994e3 TG |
202 | static inline u64 ktime_get_ns(void) |
203 | { | |
204 | return ktime_to_ns(ktime_get()); | |
205 | } | |
206 | ||
207 | static inline u64 ktime_get_real_ns(void) | |
208 | { | |
209 | return ktime_to_ns(ktime_get_real()); | |
210 | } | |
211 | ||
212 | static inline u64 ktime_get_boot_ns(void) | |
213 | { | |
214 | return ktime_to_ns(ktime_get_boottime()); | |
215 | } | |
216 | ||
fe5fba05 PZ |
217 | static inline u64 ktime_get_tai_ns(void) |
218 | { | |
219 | return ktime_to_ns(ktime_get_clocktai()); | |
220 | } | |
221 | ||
f519b1a2 TG |
222 | static inline u64 ktime_get_raw_ns(void) |
223 | { | |
224 | return ktime_to_ns(ktime_get_raw()); | |
225 | } | |
226 | ||
4396e058 | 227 | extern u64 ktime_get_mono_fast_ns(void); |
f09cb9a1 | 228 | extern u64 ktime_get_raw_fast_ns(void); |
4396e058 | 229 | |
48f18fd6 TG |
230 | /* |
231 | * Timespec interfaces utilizing the ktime based ones | |
232 | */ | |
233 | static inline void get_monotonic_boottime(struct timespec *ts) | |
234 | { | |
235 | *ts = ktime_to_timespec(ktime_get_boottime()); | |
236 | } | |
237 | ||
2e0c78ee JS |
238 | static inline void get_monotonic_boottime64(struct timespec64 *ts) |
239 | { | |
240 | *ts = ktime_to_timespec64(ktime_get_boottime()); | |
241 | } | |
242 | ||
61edec81 TG |
243 | static inline void timekeeping_clocktai(struct timespec *ts) |
244 | { | |
245 | *ts = ktime_to_timespec(ktime_get_clocktai()); | |
246 | } | |
247 | ||
8b094cd0 TG |
248 | /* |
249 | * RTC specific | |
250 | */ | |
0fa88cb4 XP |
251 | extern bool timekeeping_rtc_skipsuspend(void); |
252 | extern bool timekeeping_rtc_skipresume(void); | |
253 | ||
04d90890 | 254 | extern void timekeeping_inject_sleeptime64(struct timespec64 *delta); |
255 | ||
8b094cd0 TG |
256 | /* |
257 | * PPS accessor | |
258 | */ | |
259 | extern void getnstime_raw_and_real(struct timespec *ts_raw, | |
260 | struct timespec *ts_real); | |
261 | ||
262 | /* | |
263 | * Persistent clock related interfaces | |
264 | */ | |
8b094cd0 TG |
265 | extern int persistent_clock_is_local; |
266 | ||
8b094cd0 | 267 | extern void read_persistent_clock(struct timespec *ts); |
2ee96632 | 268 | extern void read_persistent_clock64(struct timespec64 *ts); |
9a806ddb | 269 | extern void read_boot_clock64(struct timespec64 *ts); |
8b094cd0 | 270 | extern int update_persistent_clock(struct timespec now); |
3c00a1fe | 271 | extern int update_persistent_clock64(struct timespec64 now); |
8b094cd0 TG |
272 | |
273 | ||
274 | #endif |