diff options
| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-01-05 18:09:03 (GMT) |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-01-05 18:09:03 (GMT) |
| commit | 58daf18cdcab550262a5f4681e1f1e073e21965a (patch) | |
| tree | 2096324b947761a567dd451f33664f17ee1de2cd /arch/arm/mach-ixp4xx | |
| parent | aa312be1987d43216e72ffce42bccf6bf81f62ed (diff) | |
| parent | 0af85dda39d9b673aca8c0ebae004ea70f3efc93 (diff) | |
| download | linux-58daf18cdcab550262a5f4681e1f1e073e21965a.tar.xz | |
Merge branch 'clksrc' into devel
Conflicts:
arch/arm/mach-vexpress/v2m.c
arch/arm/plat-omap/counter_32k.c
arch/arm/plat-versatile/Makefile
Diffstat (limited to 'arch/arm/mach-ixp4xx')
| -rw-r--r-- | arch/arm/mach-ixp4xx/common.c | 35 |
1 files changed, 20 insertions, 15 deletions
diff --git a/arch/arm/mach-ixp4xx/common.c b/arch/arm/mach-ixp4xx/common.c index 0bce097..4dbfcbb 100644 --- a/arch/arm/mach-ixp4xx/common.c +++ b/arch/arm/mach-ixp4xx/common.c @@ -35,6 +35,7 @@ #include <asm/pgtable.h> #include <asm/page.h> #include <asm/irq.h> +#include <asm/sched_clock.h> #include <asm/mach/map.h> #include <asm/mach/irq.h> @@ -399,6 +400,23 @@ void __init ixp4xx_sys_init(void) } /* + * sched_clock() + */ +static DEFINE_CLOCK_DATA(cd); + +unsigned long long notrace sched_clock(void) +{ + u32 cyc = *IXP4XX_OSTS; + return cyc_to_sched_clock(&cd, cyc, (u32)~0); +} + +static void notrace ixp4xx_update_sched_clock(void) +{ + u32 cyc = *IXP4XX_OSTS; + update_sched_clock(&cd, cyc, (u32)~0); +} + +/* * clocksource */ static cycle_t ixp4xx_get_cycles(struct clocksource *cs) @@ -411,7 +429,6 @@ static struct clocksource clocksource_ixp4xx = { .rating = 200, .read = ixp4xx_get_cycles, .mask = CLOCKSOURCE_MASK(32), - .shift = 20, .flags = CLOCK_SOURCE_IS_CONTINUOUS, }; @@ -419,21 +436,9 @@ unsigned long ixp4xx_timer_freq = FREQ; EXPORT_SYMBOL(ixp4xx_timer_freq); static void __init ixp4xx_clocksource_init(void) { - clocksource_ixp4xx.mult = - clocksource_hz2mult(ixp4xx_timer_freq, - clocksource_ixp4xx.shift); - clocksource_register(&clocksource_ixp4xx); -} - -/* - * sched_clock() - */ -unsigned long long sched_clock(void) -{ - cycle_t cyc = ixp4xx_get_cycles(NULL); - struct clocksource *cs = &clocksource_ixp4xx; + init_sched_clock(&cd, ixp4xx_update_sched_clock, 32, ixp4xx_timer_freq); - return clocksource_cyc2ns(cyc, cs->mult, cs->shift); + clocksource_register_hz(&clocksource_ixp4xx, ixp4xx_timer_freq); } /* |