diff options
Diffstat (limited to 'arch/powerpc/kernel/time.c')
| -rw-r--r-- | arch/powerpc/kernel/time.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c index 9ba2cc88591d..6c6093d67f30 100644 --- a/arch/powerpc/kernel/time.c +++ b/arch/powerpc/kernel/time.c @@ -903,12 +903,21 @@ static void decrementer_set_mode(enum clock_event_mode mode, decrementer_set_next_event(DECREMENTER_MAX, dev); } +static inline uint64_t div_sc64(unsigned long ticks, unsigned long nsec, + int shift) +{ + uint64_t tmp = ((uint64_t)ticks) << shift; + + do_div(tmp, nsec); + return tmp; +} + static void __init setup_clockevent_multiplier(unsigned long hz) { u64 mult, shift = 32; while (1) { - mult = div_sc(hz, NSEC_PER_SEC, shift); + mult = div_sc64(hz, NSEC_PER_SEC, shift); if (mult && (mult >> 32UL) == 0UL) break; |