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yaml
---
r: 33805
b: refs/heads/master
c: ebd6c17
h: refs/heads/master
i:
  33803: 46e09e9
v: v3
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john stultz authored and Linus Torvalds committed Sep 6, 2006
1 parent 170d369 commit 72e46e5
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Showing 3 changed files with 5 additions and 82 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: b4a228346c1a7d09f565e750d2e988c5671e9fa3
refs/heads/master: ebd6c17109aed086908ae3b0949265fd07712659
4 changes: 4 additions & 0 deletions trunk/arch/frv/Kconfig
Original file line number Diff line number Diff line change
Expand Up @@ -29,6 +29,10 @@ config GENERIC_HARDIRQS
bool
default n

config GENERIC_TIME
bool
default y

config TIME_LOW_RES
bool
default y
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81 changes: 0 additions & 81 deletions trunk/arch/frv/kernel/time.c
Original file line number Diff line number Diff line change
Expand Up @@ -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;
Expand Down Expand Up @@ -144,85 +142,6 @@ void time_init(void)
time_divisor_init();
}

/*
* 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.
*/
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