1 /*
2  * linux/arch/m32r/kernel/irq.c
3  *
4  *  Copyright (c) 2003, 2004  Hitoshi Yamamoto
5  *  Copyright (c) 2004  Hirokazu Takata <takata at linux-m32r.org>
6  */
7 
8 /*
9  *	linux/arch/i386/kernel/irq.c
10  *
11  *	Copyright (C) 1992, 1998 Linus Torvalds, Ingo Molnar
12  *
13  * This file contains the lowest level m32r-specific interrupt
14  * entry and irq statistics code. All the remaining irq logic is
15  * done by the generic kernel/irq/ code and in the
16  * m32r-specific irq controller code.
17  */
18 
19 #include <linux/kernel_stat.h>
20 #include <linux/interrupt.h>
21 #include <linux/module.h>
22 #include <asm/uaccess.h>
23 
24 /*
25  * do_IRQ handles all normal device IRQs (the special
26  * SMP cross-CPU interrupts have their own specific
27  * handlers).
28  */
do_IRQ(int irq,struct pt_regs * regs)29 asmlinkage unsigned int do_IRQ(int irq, struct pt_regs *regs)
30 {
31 	struct pt_regs *old_regs;
32 	old_regs = set_irq_regs(regs);
33 	irq_enter();
34 
35 #ifdef CONFIG_DEBUG_STACKOVERFLOW
36 	/* FIXME M32R */
37 #endif
38 	generic_handle_irq(irq);
39 	irq_exit();
40 	set_irq_regs(old_regs);
41 
42 	return 1;
43 }
44