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| author | David S. Miller <davem@davemloft.net> | 2009-12-11 10:27:29 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-12-11 10:27:29 +0100 |
| commit | 6865b7f9dddbb79277dabaa538ec9a97bccc17c0 (patch) | |
| tree | 044adaa046823baa1dca51f310b425ba0cfb6d1f /arch | |
| parent | Merge branch 'master' of /home/davem/src/GIT/linux-2.6/ (diff) | |
| download | linux-6865b7f9dddbb79277dabaa538ec9a97bccc17c0.tar.xz linux-6865b7f9dddbb79277dabaa538ec9a97bccc17c0.zip | |
sparc64: Use clock{source,events}_calc_mult_shift().
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/sparc/kernel/time_64.c | 24 |
1 files changed, 2 insertions, 22 deletions
diff --git a/arch/sparc/kernel/time_64.c b/arch/sparc/kernel/time_64.c index 63f73ae8a892..c310875c9281 100644 --- a/arch/sparc/kernel/time_64.c +++ b/arch/sparc/kernel/time_64.c @@ -774,26 +774,9 @@ void __devinit setup_sparc64_timer(void) static struct clocksource clocksource_tick = { .rating = 100, .mask = CLOCKSOURCE_MASK(64), - .shift = 16, .flags = CLOCK_SOURCE_IS_CONTINUOUS, }; -static void __init setup_clockevent_multiplier(unsigned long hz) -{ - unsigned long mult, shift = 32; - - while (1) { - mult = div_sc(hz, NSEC_PER_SEC, shift); - if (mult && (mult >> 32UL) == 0UL) - break; - - shift--; - } - - sparc64_clockevent.shift = shift; - sparc64_clockevent.mult = mult; -} - static unsigned long tb_ticks_per_usec __read_mostly; void __delay(unsigned long loops) @@ -828,9 +811,7 @@ void __init time_init(void) clocksource_hz2mult(freq, SPARC64_NSEC_PER_CYC_SHIFT); clocksource_tick.name = tick_ops->name; - clocksource_tick.mult = - clocksource_hz2mult(freq, - clocksource_tick.shift); + clocksource_calc_mult_shift(&clocksource_tick, freq, 4); clocksource_tick.read = clocksource_tick_read; printk("clocksource: mult[%x] shift[%d]\n", @@ -839,8 +820,7 @@ void __init time_init(void) clocksource_register(&clocksource_tick); sparc64_clockevent.name = tick_ops->name; - - setup_clockevent_multiplier(freq); + clockevents_calc_mult_shift(&sparc64_clockevent, freq, 4); sparc64_clockevent.max_delta_ns = clockevent_delta2ns(0x7fffffffffffffffUL, &sparc64_clockevent); |