[PATCH] FRV: Use the generic time stuff for FRV
john stultz [Wed, 6 Sep 2006 10:02:45 +0000 (11:02 +0100)]
Use the generic time stuff for FRV.

Signed-off-by: John Stultz <johnstul@us.ibm.com>
Signed-Off-By: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

arch/frv/Kconfig
arch/frv/kernel/time.c

index 95a3892..a601a17 100644 (file)
@@ -29,6 +29,10 @@ config GENERIC_HARDIRQS
        bool
        default n
 
+config GENERIC_TIME
+       bool
+       default y
+
 config TIME_LOW_RES
        bool
        default y
index d5b64e1..68a77fe 100644 (file)
@@ -32,8 +32,6 @@
 
 #define TICK_SIZE (tick_nsec / 1000)
 
-extern unsigned long wall_jiffies;
-
 unsigned long __nongprelbss __clkin_clock_speed_HZ;
 unsigned long __nongprelbss __ext_bus_clock_speed_HZ;
 unsigned long __nongprelbss __res_bus_clock_speed_HZ;
@@ -145,85 +143,6 @@ void time_init(void)
 }
 
 /*
- * This version of gettimeofday has near microsecond resolution.
- */
-void do_gettimeofday(struct timeval *tv)
-{
-       unsigned long seq;
-       unsigned long usec, sec;
-       unsigned long max_ntp_tick;
-
-       do {
-               unsigned long lost;
-
-               seq = read_seqbegin(&xtime_lock);
-
-               usec = 0;
-               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)) {
-                       max_ntp_tick = (USEC_PER_SEC / HZ) - tickadj;
-                       usec = min(usec, max_ntp_tick);
-
-                       if (lost)
-                               usec += lost * max_ntp_tick;
-               }
-               else if (unlikely(lost))
-                       usec += lost * (USEC_PER_SEC / HZ);
-
-               sec = xtime.tv_sec;
-               usec += (xtime.tv_nsec / 1000);
-       } while (read_seqretry(&xtime_lock, seq));
-
-       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 "xtime" correctly. However, the
-        * value in this location is the value at the most recent update of
-        * wall time.  Discover what correction gettimeofday() would have
-        * made, and then undo it!
-        */
-       nsec -= 0 * 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);
-
-       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;
-}
-
-EXPORT_SYMBOL(do_settimeofday);
-
-/*
  * Scheduler clock - returns current time in nanosec units.
  */
 unsigned long long sched_clock(void)