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2502b667 GU |
1 | /* |
2 | * irq.c | |
3 | * | |
4 | * (C) Copyright 2007, Greg Ungerer <gerg@snapgear.com> | |
5 | * | |
6 | * This file is subject to the terms and conditions of the GNU General Public | |
7 | * License. See the file COPYING in the main directory of this archive | |
8 | * for more details. | |
9 | */ | |
10 | ||
11 | #include <linux/types.h> | |
12 | #include <linux/init.h> | |
13 | #include <linux/kernel.h> | |
14 | #include <linux/kernel_stat.h> | |
15 | #include <linux/interrupt.h> | |
16 | #include <linux/irq.h> | |
17 | #include <linux/seq_file.h> | |
18 | #include <asm/system.h> | |
19 | #include <asm/traps.h> | |
20 | ||
21 | asmlinkage void do_IRQ(int irq, struct pt_regs *regs) | |
22 | { | |
23 | struct pt_regs *oldregs = set_irq_regs(regs); | |
24 | ||
25 | irq_enter(); | |
454dc5f8 | 26 | generic_handle_irq(irq); |
2502b667 GU |
27 | irq_exit(); |
28 | ||
29 | set_irq_regs(oldregs); | |
30 | } | |
31 | ||
2fba4f0b | 32 | #if !defined(CONFIG_M520x) && !defined(CONFIG_M523x) && \ |
277c5e3e GU |
33 | !defined(CONFIG_M527x) && !defined(CONFIG_M528x) && \ |
34 | !defined(CONFIG_M532x) | |
cd3dd406 | 35 | |
2502b667 GU |
36 | static struct irq_chip m_irq_chip = { |
37 | .name = "M68K-INTC", | |
38 | .enable = enable_vector, | |
39 | .disable = disable_vector, | |
40 | .ack = ack_vector, | |
41 | }; | |
42 | ||
43 | void __init init_IRQ(void) | |
44 | { | |
45 | int irq; | |
46 | ||
47 | init_vectors(); | |
48 | ||
49 | for (irq = 0; (irq < NR_IRQS); irq++) { | |
50 | irq_desc[irq].status = IRQ_DISABLED; | |
51 | irq_desc[irq].action = NULL; | |
52 | irq_desc[irq].depth = 1; | |
53 | irq_desc[irq].chip = &m_irq_chip; | |
54 | } | |
55 | } | |
56 | ||
cd3dd406 GU |
57 | #endif |
58 | ||
2502b667 GU |
59 | int show_interrupts(struct seq_file *p, void *v) |
60 | { | |
61 | struct irqaction *ap; | |
62 | int irq = *((loff_t *) v); | |
63 | ||
64 | if (irq == 0) | |
65 | seq_puts(p, " CPU0\n"); | |
66 | ||
67 | if (irq < NR_IRQS) { | |
68 | ap = irq_desc[irq].action; | |
69 | if (ap) { | |
70 | seq_printf(p, "%3d: ", irq); | |
71 | seq_printf(p, "%10u ", kstat_irqs(irq)); | |
72 | seq_printf(p, "%14s ", irq_desc[irq].chip->name); | |
73 | ||
74 | seq_printf(p, "%s", ap->name); | |
75 | for (ap = ap->next; ap; ap = ap->next) | |
76 | seq_printf(p, ", %s", ap->name); | |
77 | seq_putc(p, '\n'); | |
78 | } | |
79 | } | |
80 | ||
81 | return 0; | |
82 | } | |
83 |