blob: cbb7d4636ec0a37b52e4873e5c073a1b487f0e3d (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
|
/*
* Dummy local timer
*
* Copyright (C) 2008 Paul Mundt
*
* cloned from:
*
* linux/arch/arm/mach-realview/localtimer.c
*
* Copyright (C) 2002 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/init.h>
#include <linux/kernel.h>
#include <linux/delay.h>
#include <linux/device.h>
#include <linux/smp.h>
#include <linux/jiffies.h>
#include <linux/percpu.h>
#include <linux/clockchips.h>
#include <linux/hardirq.h>
#include <linux/irq.h>
static DEFINE_PER_CPU(struct clock_event_device, local_clockevent);
/*
* Used on SMP for either the local timer or SMP_MSG_TIMER
*/
void local_timer_interrupt(void)
{
struct clock_event_device *clk = this_cpu_ptr(&local_clockevent);
irq_enter();
clk->event_handler(clk);
irq_exit();
}
void local_timer_setup(unsigned int cpu)
{
struct clock_event_device *clk = &per_cpu(local_clockevent, cpu);
clk->name = "dummy_timer";
clk->features = CLOCK_EVT_FEAT_ONESHOT |
CLOCK_EVT_FEAT_PERIODIC |
CLOCK_EVT_FEAT_DUMMY;
clk->rating = 400;
clk->mult = 1;
clk->broadcast = smp_timer_broadcast;
clk->cpumask = cpumask_of(cpu);
clockevents_register_device(clk);
}
void local_timer_stop(unsigned int cpu)
{
}
|
