projects / mirror_ubuntu-artful-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 06470651 MR |
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 | ||
| 17 | static DEFINE_PER_CPU(struct clock_event_device, dummy_timer_evt); | |
| 18 | ||
| 00c1d17a | 19 | static int dummy_timer_starting_cpu(unsigned int cpu) |
| 06470651 | 20 | { |
| 00c1d17a | 21 | struct clock_event_device *evt = per_cpu_ptr(&dummy_timer_evt, cpu); |
| 06470651 MR |
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; | |
| 06470651 MR |
28 | evt->cpumask = cpumask_of(cpu); |
| 29 | ||
| 30 | clockevents_register_device(evt); | |
| 00c1d17a | 31 | return 0; |
| 06470651 MR |
32 | } |
| 33 | ||
| 06470651 MR |
34 | static int __init dummy_timer_register(void) |
| 35 | { | |
| 00c1d17a | 36 | return cpuhp_setup_state(CPUHP_AP_DUMMY_TIMER_STARTING, |
| 73c1b41e | 37 | "clockevents/dummy_timer:starting", |
| 00c1d17a | 38 | dummy_timer_starting_cpu, NULL); |
| 06470651 MR |
39 | } |
| 40 | early_initcall(dummy_timer_register); |