linux/arch/mips/kernel/i8253.c
Paul Gortmaker 73bc256d47 mips: migrate core kernel file from module.h --> export.h
These files are not modules, but were including module.h only for
EXPORT_SYMBOL and/or THIS_MODULE.  Now that we have the lightweight
export.h, use it in these kinds of cases.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-10-31 19:30:56 -04:00

40 lines
750 B
C

/*
* i8253.c 8253/PIT functions
*
*/
#include <linux/clockchips.h>
#include <linux/i8253.h>
#include <linux/export.h>
#include <linux/smp.h>
#include <linux/irq.h>
#include <asm/time.h>
static irqreturn_t timer_interrupt(int irq, void *dev_id)
{
i8253_clockevent.event_handler(&i8253_clockevent);
return IRQ_HANDLED;
}
static struct irqaction irq0 = {
.handler = timer_interrupt,
.flags = IRQF_DISABLED | IRQF_NOBALANCING | IRQF_TIMER,
.name = "timer"
};
void __init setup_pit_timer(void)
{
clockevent_i8253_init(true);
setup_irq(0, &irq0);
}
static int __init init_pit_clocksource(void)
{
if (num_possible_cpus() > 1) /* PIT does not scale! */
return 0;
return clocksource_i8253_init();
}
arch_initcall(init_pit_clocksource);