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1/*
2 * linux/drivers/clocksource/dummy_timer.c
3 *
4 * Copyright (C) 2013 ARM Ltd.
5 * All Rights Reserved
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 */
11#include <linux/clockchips.h>
12#include <linux/cpu.h>
13#include <linux/init.h>
14#include <linux/percpu.h>
15#include <linux/cpumask.h>
16
17static DEFINE_PER_CPU(struct clock_event_device, dummy_timer_evt);
18
19static int dummy_timer_starting_cpu(unsigned int cpu)
20{
21 struct clock_event_device *evt = per_cpu_ptr(&dummy_timer_evt, cpu);
22
23 evt->name = "dummy_timer";
24 evt->features = CLOCK_EVT_FEAT_PERIODIC |
25 CLOCK_EVT_FEAT_ONESHOT |
26 CLOCK_EVT_FEAT_DUMMY;
27 evt->rating = 100;
28 evt->cpumask = cpumask_of(cpu);
29
30 clockevents_register_device(evt);
31 return 0;
32}
33
34static int __init dummy_timer_register(void)
35{
36 return cpuhp_setup_state(CPUHP_AP_DUMMY_TIMER_STARTING,
37 "clockevents/dummy_timer:starting",
38 dummy_timer_starting_cpu, NULL);
39}
40early_initcall(dummy_timer_register);
41

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