5113f6f70
 김현기
kernel add
|
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
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
|
/*
* 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>
#include "hpsim_ssc.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,
};
static void hpsim_irq_set_chip(int irq)
{
struct irq_chip *chip = irq_get_chip(irq);
if (chip == &no_irq_chip)
irq_set_chip(irq, &irq_type_hp_sim);
}
static void hpsim_connect_irq(int intr, int irq)
{
ia64_ssc(intr, irq, 0, 0, SSC_CONNECT_INTERRUPT);
}
int hpsim_get_irq(int intr)
{
int irq = assign_irq_vector(AUTO_ASSIGN);
if (irq >= 0) {
hpsim_irq_set_chip(irq);
irq_set_handler(irq, handle_simple_irq);
hpsim_connect_irq(intr, irq);
}
return irq;
}
void __init
hpsim_irq_init (void)
{
int i;
for_each_active_irq(i)
hpsim_irq_set_chip(i);
}
|