diff options
| -rw-r--r-- | include/linux/hrtimer.h | 11 | ||||
| -rw-r--r-- | include/linux/ktime.h | 8 | ||||
| -rw-r--r-- | include/linux/time.h | 45 | ||||
| -rw-r--r-- | include/linux/timekeeping.h | 78 | ||||
| -rw-r--r-- | kernel/time/hrtimer.c | 2 | ||||
| -rw-r--r-- | kernel/time/posix-timers.c | 2 | ||||
| -rw-r--r-- | kernel/time/tick-internal.h | 2 | ||||
| -rw-r--r-- | kernel/time/time.c | 1 | ||||
| -rw-r--r-- | kernel/time/timekeeping.h | 20 |
9 files changed, 111 insertions, 58 deletions
diff --git a/include/linux/hrtimer.h b/include/linux/hrtimer.h index adf5056bd7b3..a036d058a249 100644 --- a/include/linux/hrtimer.h +++ b/include/linux/hrtimer.h @@ -326,17 +326,6 @@ static inline void timerfd_clock_was_set(void) { } #endif extern void hrtimers_resume(void); -extern ktime_t ktime_get(void); -extern ktime_t ktime_get_real(void); -extern ktime_t ktime_get_boottime(void); -extern ktime_t ktime_get_monotonic_offset(void); -extern ktime_t ktime_get_clocktai(void); -extern ktime_t ktime_get_update_offsets_tick(ktime_t *offs_real, - ktime_t *offs_boot, - ktime_t *offs_tai); -extern ktime_t ktime_get_update_offsets_now(ktime_t *offs_real, - ktime_t *offs_boot, - ktime_t *offs_tai); DECLARE_PER_CPU(struct tick_device, tick_cpu_device); diff --git a/include/linux/ktime.h b/include/linux/ktime.h index da6b680c252b..c9d645ad98ff 100644 --- a/include/linux/ktime.h +++ b/include/linux/ktime.h @@ -250,12 +250,6 @@ static inline __must_check bool ktime_to_timespec64_cond(const ktime_t kt, #define LOW_RES_NSEC TICK_NSEC #define KTIME_LOW_RES (ktime_t){ .tv64 = LOW_RES_NSEC } -/* Get the monotonic time in timespec format: */ -extern void ktime_get_ts(struct timespec *ts); - -/* Get the real (wall-) time in timespec format: */ -#define ktime_get_real_ts(ts) getnstimeofday(ts) - static inline ktime_t ns_to_ktime(u64 ns) { static const ktime_t ktime_zero = { .tv64 = 0 }; @@ -270,4 +264,6 @@ static inline ktime_t ms_to_ktime(u64 ms) return ktime_add_ms(ktime_zero, ms); } +# include <linux/timekeeping.h> + #endif diff --git a/include/linux/time.h b/include/linux/time.h index 234feac7f1c3..8c42cf8d2444 100644 --- a/include/linux/time.h +++ b/include/linux/time.h @@ -99,25 +99,7 @@ static inline bool timespec_valid_strict(const struct timespec *ts) return true; } -extern bool persistent_clock_exist; - -static inline bool has_persistent_clock(void) -{ - return persistent_clock_exist; -} - -extern void read_persistent_clock(struct timespec *ts); -extern void read_boot_clock(struct timespec *ts); -extern int persistent_clock_is_local; -extern int update_persistent_clock(struct timespec now); -void timekeeping_init(void); -extern int timekeeping_suspended; - -unsigned long get_seconds(void); -struct timespec current_kernel_time(void); -struct timespec __current_kernel_time(void); /* does not take xtime_lock */ -struct timespec get_monotonic_coarse(void); -void timekeeping_inject_sleeptime(struct timespec *delta); +extern struct timespec timespec_trunc(struct timespec t, unsigned gran); #define CURRENT_TIME (current_kernel_time()) #define CURRENT_TIME_SEC ((struct timespec) { get_seconds(), 0 }) @@ -135,33 +117,14 @@ void timekeeping_inject_sleeptime(struct timespec *delta); extern u32 (*arch_gettimeoffset)(void); #endif -extern void do_gettimeofday(struct timeval *tv); -extern int do_settimeofday(const struct timespec *tv); -extern int do_sys_settimeofday(const struct timespec *tv, - const struct timezone *tz); -#define do_posix_clock_monotonic_gettime(ts) ktime_get_ts(ts) -extern long do_utimes(int dfd, const char __user *filename, struct timespec *times, int flags); struct itimerval; extern int do_setitimer(int which, struct itimerval *value, struct itimerval *ovalue); -extern unsigned int alarm_setitimer(unsigned int seconds); extern int do_getitimer(int which, struct itimerval *value); -extern int __getnstimeofday(struct timespec *tv); -extern void getnstimeofday(struct timespec *tv); -extern void getrawmonotonic(struct timespec *ts); -extern void getnstime_raw_and_real(struct timespec *ts_raw, - struct timespec *ts_real); -extern void getboottime(struct timespec *ts); -extern void monotonic_to_bootbased(struct timespec *ts); -extern void get_monotonic_boottime(struct timespec *ts); -extern struct timespec timespec_trunc(struct timespec t, unsigned gran); -extern int timekeeping_valid_for_hres(void); -extern u64 timekeeping_max_deferment(void); -extern int timekeeping_inject_offset(struct timespec *ts); -extern s32 timekeeping_get_tai_offset(void); -extern void timekeeping_set_tai_offset(s32 tai_offset); -extern void timekeeping_clocktai(struct timespec *ts); +extern unsigned int alarm_setitimer(unsigned int seconds); + +extern long do_utimes(int dfd, const char __user *filename, struct timespec *times, int flags); struct tms; extern void do_sys_times(struct tms *); diff --git a/include/linux/timekeeping.h b/include/linux/timekeeping.h new file mode 100644 index 000000000000..e81c35b71da7 --- /dev/null +++ b/include/linux/timekeeping.h @@ -0,0 +1,78 @@ +#ifndef _LINUX_TIMEKEEPING_H +#define _LINUX_TIMEKEEPING_H + +/* Included from linux/ktime.h */ + +void timekeeping_init(void); +extern int timekeeping_suspended; + +/* + * Get and set timeofday + */ +extern void do_gettimeofday(struct timeval *tv); +extern int do_settimeofday(const struct timespec *tv); +extern int do_sys_settimeofday(const struct timespec *tv, + const struct timezone *tz); + +/* + * Kernel time accessors + */ +unsigned long get_seconds(void); +struct timespec current_kernel_time(void); +/* does not take xtime_lock */ +struct timespec __current_kernel_time(void); + +/* + * timespec based interfaces + */ +struct timespec get_monotonic_coarse(void); +extern void getrawmonotonic(struct timespec *ts); +extern void monotonic_to_bootbased(struct timespec *ts); +extern void get_monotonic_boottime(struct timespec *ts); +extern void ktime_get_ts(struct timespec *ts); + +extern int __getnstimeofday(struct timespec *tv); +extern void getnstimeofday(struct timespec *tv); +extern void getboottime(struct timespec *ts); + +#define do_posix_clock_monotonic_gettime(ts) ktime_get_ts(ts) +#define ktime_get_real_ts(ts) getnstimeofday(ts) + + +/* + * ktime_t based interfaces + */ +extern ktime_t ktime_get(void); +extern ktime_t ktime_get_real(void); +extern ktime_t ktime_get_boottime(void); +extern ktime_t ktime_get_monotonic_offset(void); +extern ktime_t ktime_get_clocktai(void); + +/* + * RTC specific + */ +extern void timekeeping_inject_sleeptime(struct timespec *delta); + +/* + * PPS accessor + */ +extern void getnstime_raw_and_real(struct timespec *ts_raw, + struct timespec *ts_real); + +/* + * Persistent clock related interfaces + */ +extern bool persistent_clock_exist; +extern int persistent_clock_is_local; + +static inline bool has_persistent_clock(void) +{ + return persistent_clock_exist; +} + +extern void read_persistent_clock(struct timespec *ts); +extern void read_boot_clock(struct timespec *ts); +extern int update_persistent_clock(struct timespec now); + + +#endif diff --git a/kernel/time/hrtimer.c b/kernel/time/hrtimer.c index 64843a836637..1c2fe7de2842 100644 --- a/kernel/time/hrtimer.c +++ b/kernel/time/hrtimer.c @@ -54,6 +54,8 @@ #include <trace/events/timer.h> +#include "timekeeping.h" + /* * The timer bases: * diff --git a/kernel/time/posix-timers.c b/kernel/time/posix-timers.c index 424c2d4265c9..42b463ad90f2 100644 --- a/kernel/time/posix-timers.c +++ b/kernel/time/posix-timers.c @@ -49,6 +49,8 @@ #include <linux/export.h> #include <linux/hashtable.h> +#include "timekeeping.h" + /* * Management arrays for POSIX timers. Timers are now kept in static hash table * with 512 entries. diff --git a/kernel/time/tick-internal.h b/kernel/time/tick-internal.h index 7ab92b19965a..c19c1d84b6f3 100644 --- a/kernel/time/tick-internal.h +++ b/kernel/time/tick-internal.h @@ -4,6 +4,8 @@ #include <linux/hrtimer.h> #include <linux/tick.h> +#include "timekeeping.h" + extern seqlock_t jiffies_lock; #define CS_NAME_LEN 32 diff --git a/kernel/time/time.c b/kernel/time/time.c index e8121a67fd74..278c63cc8054 100644 --- a/kernel/time/time.c +++ b/kernel/time/time.c @@ -42,6 +42,7 @@ #include <asm/unistd.h> #include "timeconst.h" +#include "timekeeping.h" /* * The timezone where the local system is located. Used as a default by some diff --git a/kernel/time/timekeeping.h b/kernel/time/timekeeping.h new file mode 100644 index 000000000000..adc1fc98bde3 --- /dev/null +++ b/kernel/time/timekeeping.h @@ -0,0 +1,20 @@ +#ifndef _KERNEL_TIME_TIMEKEEPING_H +#define _KERNEL_TIME_TIMEKEEPING_H +/* + * Internal interfaces for kernel/time/ + */ +extern ktime_t ktime_get_update_offsets_tick(ktime_t *offs_real, + ktime_t *offs_boot, + ktime_t *offs_tai); +extern ktime_t ktime_get_update_offsets_now(ktime_t *offs_real, + ktime_t *offs_boot, + ktime_t *offs_tai); + +extern int timekeeping_valid_for_hres(void); +extern u64 timekeeping_max_deferment(void); +extern int timekeeping_inject_offset(struct timespec *ts); +extern s32 timekeeping_get_tai_offset(void); +extern void timekeeping_set_tai_offset(s32 tai_offset); +extern void timekeeping_clocktai(struct timespec *ts); + +#endif |