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path: root/drivers/char/mmtimer.c
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Diffstat (limited to 'drivers/char/mmtimer.c')
-rw-r--r--drivers/char/mmtimer.c24
1 files changed, 11 insertions, 13 deletions
diff --git a/drivers/char/mmtimer.c b/drivers/char/mmtimer.c
index d83db5d..192961f 100644
--- a/drivers/char/mmtimer.c
+++ b/drivers/char/mmtimer.c
@@ -30,6 +30,8 @@
#include <linux/miscdevice.h>
#include <linux/posix-timers.h>
#include <linux/interrupt.h>
+#include <linux/time.h>
+#include <linux/math64.h>
#include <asm/uaccess.h>
#include <asm/sn/addrs.h>
@@ -472,8 +474,8 @@ static int sgi_clock_get(clockid_t clockid, struct timespec *tp)
nsec = rtc_time() * sgi_clock_period
+ sgi_clock_offset.tv_nsec;
- tp->tv_sec = div_long_long_rem(nsec, NSEC_PER_SEC, &tp->tv_nsec)
- + sgi_clock_offset.tv_sec;
+ *tp = ns_to_timespec(nsec);
+ tp->tv_sec += sgi_clock_offset.tv_sec;
return 0;
};
@@ -481,11 +483,11 @@ static int sgi_clock_set(clockid_t clockid, struct timespec *tp)
{
u64 nsec;
- u64 rem;
+ u32 rem;
nsec = rtc_time() * sgi_clock_period;
- sgi_clock_offset.tv_sec = tp->tv_sec - div_long_long_rem(nsec, NSEC_PER_SEC, &rem);
+ sgi_clock_offset.tv_sec = tp->tv_sec - div_u64_rem(nsec, NSEC_PER_SEC, &rem);
if (rem <= tp->tv_nsec)
sgi_clock_offset.tv_nsec = tp->tv_sec - rem;
@@ -644,9 +646,6 @@ static int sgi_timer_del(struct k_itimer *timr)
return 0;
}
-#define timespec_to_ns(x) ((x).tv_nsec + (x).tv_sec * NSEC_PER_SEC)
-#define ns_to_timespec(ts, nsec) (ts).tv_sec = div_long_long_rem(nsec, NSEC_PER_SEC, &(ts).tv_nsec)
-
/* Assumption: it_lock is already held with irq's disabled */
static void sgi_timer_get(struct k_itimer *timr, struct itimerspec *cur_setting)
{
@@ -659,9 +658,8 @@ static void sgi_timer_get(struct k_itimer *timr, struct itimerspec *cur_setting)
return;
}
- ns_to_timespec(cur_setting->it_interval, timr->it.mmtimer.incr * sgi_clock_period);
- ns_to_timespec(cur_setting->it_value, (timr->it.mmtimer.expires - rtc_time())* sgi_clock_period);
- return;
+ cur_setting->it_interval = ns_to_timespec(timr->it.mmtimer.incr * sgi_clock_period);
+ cur_setting->it_value = ns_to_timespec((timr->it.mmtimer.expires - rtc_time()) * sgi_clock_period);
}
@@ -679,8 +677,8 @@ static int sgi_timer_set(struct k_itimer *timr, int flags,
sgi_timer_get(timr, old_setting);
sgi_timer_del(timr);
- when = timespec_to_ns(new_setting->it_value);
- period = timespec_to_ns(new_setting->it_interval);
+ when = timespec_to_ns(&new_setting->it_value);
+ period = timespec_to_ns(&new_setting->it_interval);
if (when == 0)
/* Clear timer */
@@ -695,7 +693,7 @@ static int sgi_timer_set(struct k_itimer *timr, int flags,
unsigned long now;
getnstimeofday(&n);
- now = timespec_to_ns(n);
+ now = timespec_to_ns(&n);
if (when > now)
when -= now;
else