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/traps.h>
19
20 asmlinkage void do_IRQ(int irq, struct pt_regs *regs)
21 {
22 struct pt_regs *oldregs = set_irq_regs(regs);
23
24 irq_enter();
25 generic_handle_irq(irq);
26 irq_exit();
27
28 set_irq_regs(oldregs);
29 }
30
31
32 /* The number of spurious interrupts */
33 atomic_t irq_err_count;
34
35 int arch_show_interrupts(struct seq_file *p, int prec)
36 {
37 seq_printf(p, "%*s: %10u\n", prec, "ERR", atomic_read(&irq_err_count));
38 return 0;
39 }
40
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