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37 lines
931 B
37 lines
931 B
// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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* linux/drivers/clocksource/dummy_timer.c |
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* |
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* Copyright (C) 2013 ARM Ltd. |
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* All Rights Reserved |
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*/ |
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#include <linux/clockchips.h> |
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#include <linux/cpu.h> |
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#include <linux/init.h> |
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#include <linux/percpu.h> |
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#include <linux/cpumask.h> |
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static DEFINE_PER_CPU(struct clock_event_device, dummy_timer_evt); |
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static int dummy_timer_starting_cpu(unsigned int cpu) |
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{ |
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struct clock_event_device *evt = per_cpu_ptr(&dummy_timer_evt, cpu); |
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evt->name = "dummy_timer"; |
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evt->features = CLOCK_EVT_FEAT_PERIODIC | |
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CLOCK_EVT_FEAT_ONESHOT | |
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CLOCK_EVT_FEAT_DUMMY; |
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evt->rating = 100; |
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evt->cpumask = cpumask_of(cpu); |
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clockevents_register_device(evt); |
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return 0; |
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} |
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static int __init dummy_timer_register(void) |
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{ |
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return cpuhp_setup_state(CPUHP_AP_DUMMY_TIMER_STARTING, |
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"clockevents/dummy_timer:starting", |
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dummy_timer_starting_cpu, NULL); |
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} |
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early_initcall(dummy_timer_register);
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