diff options
| -rw-r--r-- | arch/m68k/Kconfig | 6 | ||||
| -rw-r--r-- | arch/m68k/kernel/time.c | 70 |
2 files changed, 8 insertions, 68 deletions
diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig index fb87c08c6b57..29dd8489ffec 100644 --- a/arch/m68k/Kconfig +++ b/arch/m68k/Kconfig @@ -58,6 +58,12 @@ config HZ int default 100 +config GENERIC_TIME + def_bool y + +config ARCH_USES_GETTIMEOFFSET + def_bool y + mainmenu "Linux/68k Kernel Configuration" source "init/Kconfig" diff --git a/arch/m68k/kernel/time.c b/arch/m68k/kernel/time.c index 54d980795fc4..17dc2a31a7ca 100644 --- a/arch/m68k/kernel/time.c +++ b/arch/m68k/kernel/time.c @@ -91,77 +91,11 @@ void __init time_init(void) mach_sched_init(timer_interrupt); } -/* - * This version of gettimeofday has near microsecond resolution. - */ -void do_gettimeofday(struct timeval *tv) +u32 arch_gettimeoffset(void) { - unsigned long flags; - unsigned long seq; - unsigned long usec, sec; - unsigned long max_ntp_tick = tick_usec - tickadj; - - do { - seq = read_seqbegin_irqsave(&xtime_lock, flags); - - usec = mach_gettimeoffset(); - - /* - * If time_adjust is negative then NTP is slowing the clock - * so make sure not to go into next possible interval. - * Better to lose some accuracy than have time go backwards.. - */ - if (unlikely(time_adjust < 0)) - usec = min(usec, max_ntp_tick); - - sec = xtime.tv_sec; - usec += xtime.tv_nsec/1000; - } while (read_seqretry_irqrestore(&xtime_lock, seq, flags)); - - - while (usec >= 1000000) { - usec -= 1000000; - sec++; - } - - tv->tv_sec = sec; - tv->tv_usec = usec; -} - -EXPORT_SYMBOL(do_gettimeofday); - -int do_settimeofday(struct timespec *tv) -{ - time_t wtm_sec, sec = tv->tv_sec; - long wtm_nsec, nsec = tv->tv_nsec; - - if ((unsigned long)tv->tv_nsec >= NSEC_PER_SEC) - return -EINVAL; - - write_seqlock_irq(&xtime_lock); - /* This is revolting. We need to set the xtime.tv_nsec - * correctly. However, the value in this location is - * is value at the last tick. - * Discover what correction gettimeofday - * would have done, and then undo it! - */ - nsec -= 1000 * mach_gettimeoffset(); - - wtm_sec = wall_to_monotonic.tv_sec + (xtime.tv_sec - sec); - wtm_nsec = wall_to_monotonic.tv_nsec + (xtime.tv_nsec - nsec); - - set_normalized_timespec(&xtime, sec, nsec); - set_normalized_timespec(&wall_to_monotonic, wtm_sec, wtm_nsec); - - ntp_clear(); - write_sequnlock_irq(&xtime_lock); - clock_was_set(); - return 0; + return mach_gettimeoffset() * 1000; } -EXPORT_SYMBOL(do_settimeofday); - - static int __init rtc_init(void) { struct platform_device *pdev; |