Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney...

[mv-sheeva.git] / arch / h8300 / kernel / time.c

diff --git a/arch/h8300/kernel/time.c b/arch/h8300/kernel/time.c
index 8abab3bc2b6fe1615cf80c71e3ca6450e8ee91f2..7f2d6cfbb4b6091b2f6c7523ca004582b766349e 100644 (file)
--- a/arch/h8300/kernel/time.c
+++ b/arch/h8300/kernel/time.c
@@ -27,100 +27,37 @@
 #include <linux/profile.h>
 
 #include <asm/io.h>
-#include <asm/target_time.h>
+#include <asm/timer.h>
 
 #define        TICK_SIZE (tick_nsec / 1000)
 
-/*
- * timer_interrupt() needs to keep up the real-time clock,
- * as well as call the "do_timer()" routine every clocktick
- */
-static void timer_interrupt(int irq, void *dummy, struct pt_regs * regs)
+void h8300_timer_tick(void)
 {
-       /* may need to kick the hardware timer */
-       platform_timer_eoi();
-
+       if (current->pid)
+               profile_tick(CPU_PROFILING);
+       write_seqlock(&xtime_lock);
        do_timer(1);
-#ifndef CONFIG_SMP
-       update_process_times(user_mode(regs));
-#endif
-       profile_tick(CPU_PROFILING, regs);
+       write_sequnlock(&xtime_lock);
+       update_process_times(user_mode(get_irq_regs()));
 }
 
-void time_init(void)
+void __init time_init(void)
 {
        unsigned int year, mon, day, hour, min, sec;
 
        /* FIX by dqg : Set to zero for platforms that don't have tod */
        /* without this time is undefined and can overflow time_t, causing  */
-       /* very stange errors */
+       /* very strange errors */
        year = 1980;
        mon = day = 1;
        hour = min = sec = 0;
-       platform_gettod (&year, &mon, &day, &hour, &min, &sec);
-
+#ifdef CONFIG_H8300_GETTOD
+       h8300_gettod (&year, &mon, &day, &hour, &min, &sec);
+#endif
        if ((year += 1900) < 1970)
                year += 100;
        xtime.tv_sec = mktime(year, mon, day, hour, min, sec);
        xtime.tv_nsec = 0;
 
-       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);
-
-unsigned long long sched_clock(void)
-{
-       return (unsigned long long)jiffies * (1000000000 / HZ);
-
+       h8300_timer_setup();
 }