fedora core 6 1.2949 + vserver 2.2.0

[linux-2.6.git] / arch / m32r / kernel / time.c

diff --git a/arch/m32r/kernel/time.c b/arch/m32r/kernel/time.c
index 3c47072..a090382 100644 (file)
--- a/arch/m32r/kernel/time.c
+++ b/arch/m32r/kernel/time.c
@@ -17,7 +17,6 @@
 
 #undef  DEBUG_TIMER
 
-#include <linux/config.h>
 #include <linux/errno.h>
 #include <linux/init.h>
 #include <linux/module.h>
@@ -36,14 +35,9 @@
 
 #ifdef CONFIG_SMP
 extern void send_IPI_allbutself(int, int);
-extern void smp_local_timer_interrupt(struct pt_regs *);
+extern void smp_local_timer_interrupt(void);
 #endif
 
-u64 jiffies_64 = INITIAL_JIFFIES;
-
-EXPORT_SYMBOL(jiffies_64);
-
-extern unsigned long wall_jiffies;
 #define TICK_SIZE      (tick_nsec / 1000)
 
 /*
@@ -61,7 +55,7 @@ static unsigned long do_gettimeoffset(void)
 
 #if defined(CONFIG_CHIP_M32102) || defined(CONFIG_CHIP_XNUX2) \
        || defined(CONFIG_CHIP_VDEC2) || defined(CONFIG_CHIP_M32700) \
-       || defined(CONFIG_CHIP_OPSP)
+       || defined(CONFIG_CHIP_OPSP) || defined(CONFIG_CHIP_M32104)
 #ifndef CONFIG_SMP
 
        unsigned long count;
@@ -113,24 +107,17 @@ void do_gettimeofday(struct timeval *tv)
        unsigned long max_ntp_tick = tick_usec - tickadj;
 
        do {
-               unsigned long lost;
-
                seq = read_seqbegin(&xtime_lock);
 
                usec = do_gettimeoffset();
-               lost = jiffies - wall_jiffies;
 
                /*
                 * 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)) {
+               if (unlikely(time_adjust < 0))
                        usec = min(usec, max_ntp_tick);
-                       if (lost)
-                               usec += lost * max_ntp_tick;
-               } else if (unlikely(lost))
-                       usec += lost * tick_usec;
 
                sec = xtime.tv_sec;
                usec += (xtime.tv_nsec / 1000);
@@ -163,7 +150,6 @@ int do_settimeofday(struct timespec *tv)
         * made, and then undo it!
         */
        nsec -= do_gettimeoffset() * NSEC_PER_USEC;
-       nsec -= (jiffies - wall_jiffies) * TICK_NSEC;
 
        wtm_sec = wall_to_monotonic.tv_sec + (xtime.tv_sec - sec);
        wtm_nsec = wall_to_monotonic.tv_nsec + (xtime.tv_nsec - nsec);
@@ -171,10 +157,7 @@ int do_settimeofday(struct timespec *tv)
        set_normalized_timespec(&xtime, sec, nsec);
        set_normalized_timespec(&wall_to_monotonic, wtm_sec, wtm_nsec);
 
-       time_adjust = 0;                /* stop active adjtime() */
-       time_status |= STA_UNSYNC;
-       time_maxerror = NTP_PHASE_LIMIT;
-       time_esterror = NTP_PHASE_LIMIT;
+       ntp_clear();
        write_sequnlock_irq(&xtime_lock);
        clock_was_set();
 
@@ -205,23 +188,23 @@ static long last_rtc_update = 0;
  * timer_interrupt() needs to keep up the real-time clock,
  * as well as call the "do_timer()" routine every clocktick
  */
-static inline void
-do_timer_interrupt(int irq, void *dev_id, struct pt_regs * regs)
+irqreturn_t timer_interrupt(int irq, void *dev_id)
 {
 #ifndef CONFIG_SMP
-       profile_tick(CPU_PROFILING, regs);
+       profile_tick(CPU_PROFILING);
 #endif
-       do_timer(regs);
+       do_timer(1);
 
 #ifndef CONFIG_SMP
-       update_process_times(user_mode(regs));
+       update_process_times(user_mode(get_irq_regs()));
 #endif
        /*
         * If we have an externally synchronized Linux clock, then update
         * CMOS clock accordingly every ~11 minutes. Set_rtc_mmss() has to be
         * called as close as possible to 500 ms before the new second starts.
         */
-       if ((time_status & STA_UNSYNC) == 0
+       write_seqlock(&xtime_lock);
+       if (ntp_synced()
                && xtime.tv_sec > last_rtc_update + 660
                && (xtime.tv_nsec / 1000) >= 500000 - ((unsigned)TICK_SIZE) / 2
                && (xtime.tv_nsec / 1000) <= 500000 + ((unsigned)TICK_SIZE) / 2)
@@ -231,26 +214,21 @@ do_timer_interrupt(int irq, void *dev_id, struct pt_regs * regs)
                else    /* do it again in 60 s */
                        last_rtc_update = xtime.tv_sec - 600;
        }
+       write_sequnlock(&xtime_lock);
        /* As we return to user mode fire off the other CPU schedulers..
           this is basically because we don't yet share IRQ's around.
           This message is rigged to be safe on the 386 - basically it's
           a hack, so don't look closely for now.. */
 
 #ifdef CONFIG_SMP
-       smp_local_timer_interrupt(regs);
+       smp_local_timer_interrupt();
+       smp_send_timer();
 #endif
-}
-
-irqreturn_t timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
-{
-       write_seqlock(&xtime_lock);
-       do_timer_interrupt(irq, NULL, regs);
-       write_sequnlock(&xtime_lock);
 
        return IRQ_HANDLED;
 }
 
-struct irqaction irq0 = { timer_interrupt, SA_INTERRUPT, CPU_MASK_NONE,
+struct irqaction irq0 = { timer_interrupt, IRQF_DISABLED, CPU_MASK_NONE,
                          "MFT2", NULL, NULL };
 
 void __init time_init(void)
@@ -280,7 +258,7 @@ void __init time_init(void)
 
 #if defined(CONFIG_CHIP_M32102) || defined(CONFIG_CHIP_XNUX2) \
        || defined(CONFIG_CHIP_VDEC2) || defined(CONFIG_CHIP_M32700) \
-       || defined(CONFIG_CHIP_OPSP)
+       || defined(CONFIG_CHIP_OPSP) || defined(CONFIG_CHIP_M32104)
 
        /* M32102 MFT setup */
        setup_irq(M32R_IRQ_MFT2, &irq0);