| /* |
| * linux/drivers/clocksource/dummy_timer.c |
| * |
| * Copyright (C) 2013 ARM Ltd. |
| * All Rights Reserved |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 as |
| * published by the Free Software Foundation. |
| */ |
| #include <linux/clockchips.h> |
| #include <linux/cpu.h> |
| #include <linux/init.h> |
| #include <linux/percpu.h> |
| #include <linux/cpumask.h> |
| |
| static DEFINE_PER_CPU(struct clock_event_device, dummy_timer_evt); |
| |
| static int dummy_timer_starting_cpu(unsigned int cpu) |
| { |
| struct clock_event_device *evt = per_cpu_ptr(&dummy_timer_evt, cpu); |
| |
| evt->name = "dummy_timer"; |
| evt->features = CLOCK_EVT_FEAT_PERIODIC | |
| CLOCK_EVT_FEAT_ONESHOT | |
| CLOCK_EVT_FEAT_DUMMY; |
| evt->rating = 100; |
| evt->cpumask = cpumask_of(cpu); |
| |
| clockevents_register_device(evt); |
| return 0; |
| } |
| |
| static int __init dummy_timer_register(void) |
| { |
| return cpuhp_setup_state(CPUHP_AP_DUMMY_TIMER_STARTING, |
| "clockevents/dummy_timer:starting", |
| dummy_timer_starting_cpu, NULL); |
| } |
| early_initcall(dummy_timer_register); |