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authorjohn stultz <johnstul@us.ibm.com>2006-09-06 14:02:45 +0400
committerLinus Torvalds <torvalds@g5.osdl.org>2006-09-06 22:00:02 +0400
commitebd6c17109aed086908ae3b0949265fd07712659 (patch)
tree7a1af4b2ac8b6ce062206d0e967272d2ae457ff6 /arch/frv
parentb4a228346c1a7d09f565e750d2e988c5671e9fa3 (diff)
downloadlinux-ebd6c17109aed086908ae3b0949265fd07712659.tar.xz
[PATCH] FRV: Use the generic time stuff for FRV
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>
Diffstat (limited to 'arch/frv')
-rw-r--r--arch/frv/Kconfig4
-rw-r--r--arch/frv/kernel/time.c81
2 files changed, 4 insertions, 81 deletions
diff --git a/arch/frv/Kconfig b/arch/frv/Kconfig
index 95a3892b8d1b..a601a17cf568 100644
--- a/arch/frv/Kconfig
+++ b/arch/frv/Kconfig
@@ -29,6 +29,10 @@ config GENERIC_HARDIRQS
bool
default n
+config GENERIC_TIME
+ bool
+ default y
+
config TIME_LOW_RES
bool
default y
diff --git a/arch/frv/kernel/time.c b/arch/frv/kernel/time.c
index d5b64e193d92..68a77fe3bb40 100644
--- a/arch/frv/kernel/time.c
+++ b/arch/frv/kernel/time.c
@@ -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)