1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef _LINUX_NTP_INTERNAL_H 3 #define _LINUX_NTP_INTERNAL_H 4 5 extern void ntp_init(void); 6 extern void ntp_clear(unsigned int tkid, s64 cs_tick_adj); 7 /* Returns how long ticks are at present, in ns / 2^NTP_SCALE_SHIFT. */ 8 extern u64 ntp_tick_length(unsigned int tkid); 9 extern s64 ntp_get_skew_delta(unsigned int tkid); 10 extern s64 ntp_drain_skew(unsigned int tkid, s64 amount, unsigned int shift); 11 extern ktime_t ntp_get_next_leap(unsigned int tkid); 12 extern int second_overflow(unsigned int tkid, time64_t secs); 13 extern int ntp_adjtimex(unsigned int tkid, struct __kernel_timex *txc, const struct timespec64 *ts, 14 s32 *time_tai, struct audit_ntp_data *ad); 15 extern void __hardpps(const struct timespec64 *phase_ts, const struct timespec64 *raw_ts); 16 17 #if defined(CONFIG_GENERIC_CMOS_UPDATE) || defined(CONFIG_RTC_SYSTOHC) 18 extern void ntp_notify_cmos_timer(bool offset_set); 19 #else 20 static inline void ntp_notify_cmos_timer(bool offset_set) { } 21 #endif 22 23 #endif /* _LINUX_NTP_INTERNAL_H */ 24