4 * Copyright (C) 2008 Paul Mundt
8 * linux/arch/arm/mach-realview/localtimer.c
10 * Copyright (C) 2002 ARM Ltd.
13 * This program is free software; you can redistribute it and/or modify
14 * it under the terms of the GNU General Public License version 2 as
15 * published by the Free Software Foundation.
17 #include <linux/init.h>
18 #include <linux/kernel.h>
19 #include <linux/delay.h>
20 #include <linux/device.h>
21 #include <linux/smp.h>
22 #include <linux/jiffies.h>
23 #include <linux/percpu.h>
24 #include <linux/clockchips.h>
25 #include <linux/hardirq.h>
26 #include <linux/irq.h>
28 static DEFINE_PER_CPU(struct clock_event_device, local_clockevent);
31 * Used on SMP for either the local timer or SMP_MSG_TIMER
33 void local_timer_interrupt(void)
35 struct clock_event_device *clk = this_cpu_ptr(&local_clockevent);
38 clk->event_handler(clk);
42 void local_timer_setup(unsigned int cpu)
44 struct clock_event_device *clk = &per_cpu(local_clockevent, cpu);
46 clk->name = "dummy_timer";
47 clk->features = CLOCK_EVT_FEAT_ONESHOT |
48 CLOCK_EVT_FEAT_PERIODIC |
52 clk->broadcast = smp_timer_broadcast;
53 clk->cpumask = cpumask_of(cpu);
55 clockevents_register_device(clk);
58 void local_timer_stop(unsigned int cpu)