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