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author | H. Peter Anvin <hpa@zytor.com> | 2010-02-22 19:20:34 -0500 |
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committer | H. Peter Anvin <hpa@zytor.com> | 2010-02-22 19:20:34 -0500 |
commit | d02e30c31c57683a66ed68a1bcff900ca78f6d56 (patch) | |
tree | c3ce99a00061bcc1199b50fa838147d876c56717 /arch/powerpc/kernel/time.c | |
parent | 0fdc7a8022c3eaff6b5ee27ffb9e913e5e58d8e9 (diff) | |
parent | aef55d4922e62a0d887e60d87319f3718aec6ced (diff) |
Merge branch 'x86/irq' into x86/apic
Merge reason:
Conflicts in arch/x86/kernel/apic/io_apic.c
Resolved Conflicts:
arch/x86/kernel/apic/io_apic.c
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
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, | |||
903 | decrementer_set_next_event(DECREMENTER_MAX, dev); | 903 | decrementer_set_next_event(DECREMENTER_MAX, dev); |
904 | } | 904 | } |
905 | 905 | ||
906 | static inline uint64_t div_sc64(unsigned long ticks, unsigned long nsec, | ||
907 | int shift) | ||
908 | { | ||
909 | uint64_t tmp = ((uint64_t)ticks) << shift; | ||
910 | |||
911 | do_div(tmp, nsec); | ||
912 | return tmp; | ||
913 | } | ||
914 | |||
906 | static void __init setup_clockevent_multiplier(unsigned long hz) | 915 | static void __init setup_clockevent_multiplier(unsigned long hz) |
907 | { | 916 | { |
908 | u64 mult, shift = 32; | 917 | u64 mult, shift = 32; |
909 | 918 | ||
910 | while (1) { | 919 | while (1) { |
911 | mult = div_sc(hz, NSEC_PER_SEC, shift); | 920 | mult = div_sc64(hz, NSEC_PER_SEC, shift); |
912 | if (mult && (mult >> 32UL) == 0UL) | 921 | if (mult && (mult >> 32UL) == 0UL) |
913 | break; | 922 | break; |
914 | 923 | ||