At Tue, 10 Apr 2007 16:25:00 -0700,
john stultz wrote:
>
> Here is a trivial conversion of the h8300 arch to the GENERIC_TIME
> infrastructure (h8300 does not have better then jiffies resolution, so
> there are no clocksources to add). I have not tested this at all, but it
> seems pretty straight forward
>
> I'd appreciate any comments or feedback!
>
> thanks
> -john
>
There will not be a problem.
Because it is a place working now, I correct it if there
was a problem.
>
> Signed-off-by: John Stultz <[email protected]>
Signed-off-by: Yoshinori Sato <[email protected]>
>
> diff --git a/arch/h8300/Kconfig b/arch/h8300/Kconfig
> index 1734d96..86f6ca3 100644
> --- a/arch/h8300/Kconfig
> +++ b/arch/h8300/Kconfig
> @@ -53,6 +53,10 @@ config GENERIC_CALIBRATE_DELAY
> bool
> default y
>
> +config GENERIC_TIME
> + bool
> + default y
> +
> config TIME_LOW_RES
> bool
> default y
> diff --git a/arch/h8300/kernel/time.c b/arch/h8300/kernel/time.c
> index d1ef615..91d3b56 100644
> --- a/arch/h8300/kernel/time.c
> +++ b/arch/h8300/kernel/time.c
> @@ -66,55 +66,3 @@ void time_init(void)
>
> platform_timer_setup(timer_interrupt);
> }
> -
> -/*
> - * This version of gettimeofday has near microsecond resolution.
> - */
> -void do_gettimeofday(struct timeval *tv)
> -{
> - unsigned long flags;
> - unsigned long usec, sec;
> -
> - read_lock_irqsave(&xtime_lock, flags);
> - usec = 0;
> - sec = xtime.tv_sec;
> - usec += (xtime.tv_nsec / 1000);
> - read_unlock_irqrestore(&xtime_lock, 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_lock_irq(&xtime_lock);
> - /* This is revolting. We need to set the xtime.tv_usec
> - * 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!
> - */
> - 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);
>
-
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