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 | */ | |
28 | struct timespec get_monotonic_coarse(void); | |
cdba2ec5 | 29 | extern void getrawmonotonic64(struct timespec64 *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 | |
21f7eca5 | 36 | /** |
37 | * Deprecated. Use do_settimeofday64(). | |
38 | */ | |
39 | static inline int do_settimeofday(const struct timespec *ts) | |
40 | { | |
41 | return do_settimeofday64(ts); | |
42 | } | |
43 | ||
d6d29896 TG |
44 | static inline int __getnstimeofday(struct timespec *ts) |
45 | { | |
46 | return __getnstimeofday64(ts); | |
47 | } | |
48 | ||
49 | static inline void getnstimeofday(struct timespec *ts) | |
50 | { | |
51 | getnstimeofday64(ts); | |
52 | } | |
53 | ||
54 | static inline void ktime_get_ts(struct timespec *ts) | |
55 | { | |
56 | ktime_get_ts64(ts); | |
57 | } | |
58 | ||
59 | static inline void ktime_get_real_ts(struct timespec *ts) | |
60 | { | |
61 | getnstimeofday64(ts); | |
62 | } | |
63 | ||
cdba2ec5 JS |
64 | static inline void getrawmonotonic(struct timespec *ts) |
65 | { | |
66 | getrawmonotonic64(ts); | |
67 | } | |
68 | ||
d6d29896 | 69 | #else |
21f7eca5 | 70 | /** |
71 | * Deprecated. Use do_settimeofday64(). | |
72 | */ | |
73 | static inline int do_settimeofday(const struct timespec *ts) | |
74 | { | |
75 | struct timespec64 ts64; | |
76 | ||
77 | ts64 = timespec_to_timespec64(*ts); | |
78 | return do_settimeofday64(&ts64); | |
79 | } | |
80 | ||
d6d29896 TG |
81 | static inline int __getnstimeofday(struct timespec *ts) |
82 | { | |
83 | struct timespec64 ts64; | |
84 | int ret = __getnstimeofday64(&ts64); | |
85 | ||
86 | *ts = timespec64_to_timespec(ts64); | |
87 | return ret; | |
88 | } | |
89 | ||
90 | static inline void getnstimeofday(struct timespec *ts) | |
91 | { | |
92 | struct timespec64 ts64; | |
93 | ||
94 | getnstimeofday64(&ts64); | |
95 | *ts = timespec64_to_timespec(ts64); | |
96 | } | |
97 | ||
98 | static inline void ktime_get_ts(struct timespec *ts) | |
99 | { | |
100 | struct timespec64 ts64; | |
101 | ||
102 | ktime_get_ts64(&ts64); | |
103 | *ts = timespec64_to_timespec(ts64); | |
104 | } | |
105 | ||
106 | static inline void ktime_get_real_ts(struct timespec *ts) | |
107 | { | |
108 | struct timespec64 ts64; | |
109 | ||
110 | getnstimeofday64(&ts64); | |
111 | *ts = timespec64_to_timespec(ts64); | |
112 | } | |
cdba2ec5 JS |
113 | |
114 | static inline void getrawmonotonic(struct timespec *ts) | |
115 | { | |
116 | struct timespec64 ts64; | |
117 | ||
118 | getrawmonotonic64(&ts64); | |
119 | *ts = timespec64_to_timespec(ts64); | |
120 | } | |
d6d29896 | 121 | #endif |
8b094cd0 | 122 | |
8b094cd0 TG |
123 | extern void getboottime(struct timespec *ts); |
124 | ||
125 | #define do_posix_clock_monotonic_gettime(ts) ktime_get_ts(ts) | |
d6d29896 | 126 | #define ktime_get_real_ts64(ts) getnstimeofday64(ts) |
8b094cd0 TG |
127 | |
128 | /* | |
129 | * ktime_t based interfaces | |
130 | */ | |
0077dc60 TG |
131 | |
132 | enum tk_offsets { | |
133 | TK_OFFS_REAL, | |
134 | TK_OFFS_BOOT, | |
135 | TK_OFFS_TAI, | |
136 | TK_OFFS_MAX, | |
137 | }; | |
138 | ||
8b094cd0 | 139 | extern ktime_t ktime_get(void); |
0077dc60 | 140 | extern ktime_t ktime_get_with_offset(enum tk_offsets offs); |
9a6b5197 | 141 | extern ktime_t ktime_mono_to_any(ktime_t tmono, enum tk_offsets offs); |
f519b1a2 | 142 | extern ktime_t ktime_get_raw(void); |
8b094cd0 | 143 | |
f5264d5d TG |
144 | /** |
145 | * ktime_get_real - get the real (wall-) time in ktime_t format | |
146 | */ | |
147 | static inline ktime_t ktime_get_real(void) | |
148 | { | |
149 | return ktime_get_with_offset(TK_OFFS_REAL); | |
150 | } | |
151 | ||
b82c817e TG |
152 | /** |
153 | * ktime_get_boottime - Returns monotonic time since boot in ktime_t format | |
154 | * | |
155 | * This is similar to CLOCK_MONTONIC/ktime_get, but also includes the | |
156 | * time spent in suspend. | |
157 | */ | |
158 | static inline ktime_t ktime_get_boottime(void) | |
159 | { | |
160 | return ktime_get_with_offset(TK_OFFS_BOOT); | |
161 | } | |
162 | ||
afab07c0 TG |
163 | /** |
164 | * ktime_get_clocktai - Returns the TAI time of day in ktime_t format | |
165 | */ | |
166 | static inline ktime_t ktime_get_clocktai(void) | |
167 | { | |
168 | return ktime_get_with_offset(TK_OFFS_TAI); | |
169 | } | |
170 | ||
9a6b5197 TG |
171 | /** |
172 | * ktime_mono_to_real - Convert monotonic time to clock realtime | |
173 | */ | |
174 | static inline ktime_t ktime_mono_to_real(ktime_t mono) | |
175 | { | |
176 | return ktime_mono_to_any(mono, TK_OFFS_REAL); | |
177 | } | |
178 | ||
897994e3 TG |
179 | static inline u64 ktime_get_ns(void) |
180 | { | |
181 | return ktime_to_ns(ktime_get()); | |
182 | } | |
183 | ||
184 | static inline u64 ktime_get_real_ns(void) | |
185 | { | |
186 | return ktime_to_ns(ktime_get_real()); | |
187 | } | |
188 | ||
189 | static inline u64 ktime_get_boot_ns(void) | |
190 | { | |
191 | return ktime_to_ns(ktime_get_boottime()); | |
192 | } | |
193 | ||
f519b1a2 TG |
194 | static inline u64 ktime_get_raw_ns(void) |
195 | { | |
196 | return ktime_to_ns(ktime_get_raw()); | |
197 | } | |
198 | ||
4396e058 TG |
199 | extern u64 ktime_get_mono_fast_ns(void); |
200 | ||
48f18fd6 TG |
201 | /* |
202 | * Timespec interfaces utilizing the ktime based ones | |
203 | */ | |
204 | static inline void get_monotonic_boottime(struct timespec *ts) | |
205 | { | |
206 | *ts = ktime_to_timespec(ktime_get_boottime()); | |
207 | } | |
208 | ||
61edec81 TG |
209 | static inline void timekeeping_clocktai(struct timespec *ts) |
210 | { | |
211 | *ts = ktime_to_timespec(ktime_get_clocktai()); | |
212 | } | |
213 | ||
8b094cd0 TG |
214 | /* |
215 | * RTC specific | |
216 | */ | |
04d90890 | 217 | extern void timekeeping_inject_sleeptime64(struct timespec64 *delta); |
218 | ||
219 | /** | |
220 | * Deprecated. Use timekeeping_inject_sleeptime64(). | |
221 | */ | |
222 | static inline void timekeeping_inject_sleeptime(struct timespec *delta) | |
223 | { | |
224 | struct timespec64 delta64; | |
225 | ||
226 | delta64 = timespec_to_timespec64(*delta); | |
227 | timekeeping_inject_sleeptime64(&delta64); | |
228 | } | |
8b094cd0 TG |
229 | |
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 |