blob: 31dacfd77dd9091a3083ab17668129f07f17b761 (
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
|
/*
* Platform dependent support for HP simulator.
*
* Copyright (C) 1998-2001 Hewlett-Packard Co
* Copyright (C) 1998-2001 David Mosberger-Tang <davidm@hpl.hp.com>
*/
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/irq.h>
static unsigned int
hpsim_irq_startup(struct irq_data *data)
{
return 0;
}
static void
hpsim_irq_noop(struct irq_data *data)
{
}
static int
hpsim_set_affinity_noop(struct irq_data *d, const struct cpumask *b, bool f)
{
return 0;
}
static struct irq_chip irq_type_hp_sim = {
.name = "hpsim",
.irq_startup = hpsim_irq_startup,
.irq_shutdown = hpsim_irq_noop,
.irq_enable = hpsim_irq_noop,
.irq_disable = hpsim_irq_noop,
.irq_ack = hpsim_irq_noop,
.irq_set_affinity = hpsim_set_affinity_noop,
};
void __init
hpsim_irq_init (void)
{
struct irq_desc *idesc;
int i;
for (i = 0; i < NR_IRQS; ++i) {
idesc = irq_desc + i;
if (idesc->chip == &no_irq_chip)
idesc->chip = &irq_type_hp_sim;
}
}
|