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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 | ||
2502b667 GU |
32 | int show_interrupts(struct seq_file *p, void *v) |
33 | { | |
34 | struct irqaction *ap; | |
35 | int irq = *((loff_t *) v); | |
36 | ||
37 | if (irq == 0) | |
38 | seq_puts(p, " CPU0\n"); | |
39 | ||
40 | if (irq < NR_IRQS) { | |
5a7d2980 TG |
41 | struct irq_desc *desc = irq_to_desc(irq); |
42 | ||
43 | ap = desc->action; | |
2502b667 GU |
44 | if (ap) { |
45 | seq_printf(p, "%3d: ", irq); | |
46 | seq_printf(p, "%10u ", kstat_irqs(irq)); | |
5a7d2980 | 47 | seq_printf(p, "%14s ", get_irq_desc_chip(desc)->name); |
2502b667 GU |
48 | |
49 | seq_printf(p, "%s", ap->name); | |
50 | for (ap = ap->next; ap; ap = ap->next) | |
51 | seq_printf(p, ", %s", ap->name); | |
52 | seq_putc(p, '\n'); | |
53 | } | |
54 | } | |
55 | ||
56 | return 0; | |
57 | } | |
58 |