diff options
Diffstat (limited to 'arch/v850')
| -rw-r--r-- | arch/v850/Kconfig | 4 | ||||
| -rw-r--r-- | arch/v850/kernel/time.c | 75 |
2 files changed, 4 insertions, 75 deletions
diff --git a/arch/v850/Kconfig b/arch/v850/Kconfig index 50ccc7f..5f54c12 100644 --- a/arch/v850/Kconfig +++ b/arch/v850/Kconfig @@ -37,6 +37,10 @@ config GENERIC_IRQ_PROBE bool default y +config GENERIC_TIME + bool + default y + config TIME_LOW_RES bool default y diff --git a/arch/v850/kernel/time.c b/arch/v850/kernel/time.c index 486e3a4..f0905b0 100644 --- a/arch/v850/kernel/time.c +++ b/arch/v850/kernel/time.c @@ -90,81 +90,6 @@ static irqreturn_t timer_interrupt (int irq, void *dummy, struct pt_regs *regs) return IRQ_HANDLED; } -/* - * This version of gettimeofday has near microsecond resolution. - */ -void do_gettimeofday (struct timeval *tv) -{ -#if 0 /* DAVIDM later if possible */ - extern volatile unsigned long lost_ticks; - unsigned long lost; -#endif - unsigned long flags; - unsigned long usec, sec; - unsigned long seq; - - do { - seq = read_seqbegin_irqsave(&xtime_lock, flags); - -#if 0 - usec = mach_gettimeoffset ? mach_gettimeoffset () : 0; -#else - usec = 0; -#endif -#if 0 /* DAVIDM later if possible */ - lost = lost_ticks; - if (lost) - usec += lost * (1000000/HZ); -#endif - 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) -{ - 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! - */ -#if 0 - tv->tv_nsec -= mach_gettimeoffset() * 1000; -#endif - - while (tv->tv_nsec < 0) { - tv->tv_nsec += NSEC_PER_SEC; - tv->tv_sec--; - } - - xtime.tv_sec = tv->tv_sec; - xtime.tv_nsec = tv->tv_nsec; - - ntp_clear(); - - write_sequnlock_irq (&xtime_lock); - clock_was_set(); - return 0; -} - -EXPORT_SYMBOL(do_settimeofday); - static int timer_dev_id; static struct irqaction timer_irqaction = { timer_interrupt, |
