diff options
Diffstat (limited to 'include/linux/time.h')
| -rw-r--r-- | include/linux/time.h | 23 |
1 files changed, 19 insertions, 4 deletions
diff --git a/include/linux/time.h b/include/linux/time.h index fbbd2a1c92b..ea16c1a01d5 100644 --- a/include/linux/time.h +++ b/include/linux/time.h @@ -12,14 +12,14 @@ #ifndef _STRUCT_TIMESPEC #define _STRUCT_TIMESPEC struct timespec { - time_t tv_sec; /* seconds */ - long tv_nsec; /* nanoseconds */ + __kernel_time_t tv_sec; /* seconds */ + long tv_nsec; /* nanoseconds */ }; #endif struct timeval { - time_t tv_sec; /* seconds */ - suseconds_t tv_usec; /* microseconds */ + __kernel_time_t tv_sec; /* seconds */ + __kernel_suseconds_t tv_usec; /* microseconds */ }; struct timezone { @@ -113,6 +113,21 @@ struct timespec current_kernel_time(void); #define CURRENT_TIME (current_kernel_time()) #define CURRENT_TIME_SEC ((struct timespec) { get_seconds(), 0 }) +/* Some architectures do not supply their own clocksource. + * This is mainly the case in architectures that get their + * inter-tick times by reading the counter on their interval + * timer. Since these timers wrap every tick, they're not really + * useful as clocksources. Wrapping them to act like one is possible + * but not very efficient. So we provide a callout these arches + * can implement for use with the jiffies clocksource to provide + * finer then tick granular time. + */ +#ifdef CONFIG_ARCH_USES_GETTIMEOFFSET +extern u32 arch_gettimeoffset(void); +#else +static inline u32 arch_gettimeoffset(void) { return 0; } +#endif + extern void do_gettimeofday(struct timeval *tv); extern int do_settimeofday(struct timespec *tv); extern int do_sys_settimeofday(struct timespec *tv, struct timezone *tz); |