diff options
Diffstat (limited to 'hw/timer/mc146818rtc.c')
| -rw-r--r-- | hw/timer/mc146818rtc.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/hw/timer/mc146818rtc.c b/hw/timer/mc146818rtc.c index 5e655041bc..496a7cd815 100644 --- a/hw/timer/mc146818rtc.c +++ b/hw/timer/mc146818rtc.c @@ -107,8 +107,8 @@ static uint64_t get_guest_rtc_ns(RTCState *s) uint64_t guest_rtc; uint64_t guest_clock = qemu_clock_get_ns(rtc_clock); - guest_rtc = s->base_rtc * NANOSECONDS_PER_SECOND - + guest_clock - s->last_update + s->offset; + guest_rtc = s->base_rtc * NANOSECONDS_PER_SECOND + + guest_clock - s->last_update + s->offset; return guest_rtc; } @@ -121,7 +121,7 @@ static void rtc_coalesced_timer_update(RTCState *s) /* divide each RTC interval to 2 - 8 smaller intervals */ int c = MIN(s->irq_coalesced, 7) + 1; int64_t next_clock = qemu_clock_get_ns(rtc_clock) + - muldiv64(s->period / c, get_ticks_per_sec(), RTC_CLOCK_RATE); + muldiv64(s->period / c, NANOSECONDS_PER_SECOND, RTC_CLOCK_RATE); timer_mod(s->coalesced_timer, next_clock); } } @@ -167,10 +167,12 @@ static void periodic_timer_update(RTCState *s, int64_t current_time) s->period = period; #endif /* compute 32 khz clock */ - cur_clock = muldiv64(current_time, RTC_CLOCK_RATE, get_ticks_per_sec()); + cur_clock = + muldiv64(current_time, RTC_CLOCK_RATE, NANOSECONDS_PER_SECOND); + next_irq_clock = (cur_clock & ~(period - 1)) + period; - s->next_periodic_time = - muldiv64(next_irq_clock, get_ticks_per_sec(), RTC_CLOCK_RATE) + 1; + s->next_periodic_time = muldiv64(next_irq_clock, NANOSECONDS_PER_SECOND, + RTC_CLOCK_RATE) + 1; timer_mod(s->periodic_timer, s->next_periodic_time); } else { #ifdef TARGET_I386 |