/* * linux/arch/m32r/kernel/irq.c * *  Copyright (c) 2003, 2004  Hitoshi Yamamoto *  Copyright (c) 2004  Hirokazu Takata <takata at linux-m32r.org> *//* *	linux/arch/i386/kernel/irq.c * *	Copyright (C) 1992, 1998 Linus Torvalds, Ingo Molnar * * This file contains the lowest level m32r-specific interrupt * entry and irq statistics code. All the remaining irq logic is * done by the generic kernel/irq/ code and in the * m32r-specific irq controller code. */#include <linux/kernel_stat.h>#include <linux/interrupt.h>#include <linux/seq_file.h>#include <linux/module.h>#include <asm/uaccess.h>atomic_t irq_err_count;atomic_t irq_mis_count;/* * Generic, controller-independent functions: */int show_interrupts(struct seq_file *p, void *v){	int i = *(loff_t *) v, j;	struct irqaction * action;	unsigned long flags;	if (i == 0) {		seq_printf(p, "           ");		for (j=0; j<NR_CPUS; j++)			if (cpu_online(j))				seq_printf(p, "CPU%d       ",j);		seq_putc(p, '\n');	}	if (i < NR_IRQS) {		spin_lock_irqsave(&irq_desc[i].lock, flags);		action = irq_desc[i].action;		if (!action)			goto skip;		seq_printf(p, "%3d: ",i);#ifndef CONFIG_SMP		seq_printf(p, "%10u ", kstat_irqs(i));#else		for (j = 0; j < NR_CPUS; j++)			if (cpu_online(j))				seq_printf(p, "%10u ", kstat_cpu(j).irqs[i]);#endif		seq_printf(p, " %14s", irq_desc[i].handler->typename);		seq_printf(p, "  %s", action->name);		for (action=action->next; action; action = action->next)			seq_printf(p, ", %s", action->name);		seq_putc(p, '\n');skip:		spin_unlock_irqrestore(&irq_desc[i].lock, flags);	} else if (i == NR_IRQS) {		seq_printf(p, "ERR: %10u\n", atomic_read(&irq_err_count));		seq_printf(p, "MIS: %10u\n", atomic_read(&irq_mis_count));	}	return 0;}/* * do_IRQ handles all normal device IRQ's (the special * SMP cross-CPU interrupts have their own specific * handlers). */asmlinkage unsigned int do_IRQ(int irq, struct pt_regs *regs){	irq_enter();#ifdef CONFIG_DEBUG_STACKOVERFLOW	/* FIXME M32R */#endif	__do_IRQ(irq, regs);	irq_exit();	return 1;}