2 * linux/arch/m32r/kernel/irq.c
4 * Copyright (c) 2003, 2004 Hitoshi Yamamoto
5 * Copyright (c) 2004 Hirokazu Takata <takata at linux-m32r.org>
9 * linux/arch/i386/kernel/irq.c
11 * Copyright (C) 1992, 1998 Linus Torvalds, Ingo Molnar
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.
19 #include <linux/kernel_stat.h>
20 #include <linux/interrupt.h>
21 #include <linux/seq_file.h>
22 #include <linux/module.h>
23 #include <asm/uaccess.h>
25 atomic_t irq_err_count;
26 atomic_t irq_mis_count;
29 * Generic, controller-independent functions:
32 int show_interrupts(struct seq_file *p, void *v)
34 int i = *(loff_t *) v, j;
35 struct irqaction * action;
40 for (j=0; j<NR_CPUS; j++)
42 seq_printf(p, "CPU%d ",j);
47 spin_lock_irqsave(&irq_desc[i].lock, flags);
48 action = irq_desc[i].action;
51 seq_printf(p, "%3d: ",i);
53 seq_printf(p, "%10u ", kstat_irqs(i));
55 for (j = 0; j < NR_CPUS; j++)
57 seq_printf(p, "%10u ", kstat_cpu(j).irqs[i]);
59 seq_printf(p, " %14s", irq_desc[i].handler->typename);
60 seq_printf(p, " %s", action->name);
62 for (action=action->next; action; action = action->next)
63 seq_printf(p, ", %s", action->name);
67 spin_unlock_irqrestore(&irq_desc[i].lock, flags);
68 } else if (i == NR_IRQS) {
69 seq_printf(p, "ERR: %10u\n", atomic_read(&irq_err_count));
70 seq_printf(p, "MIS: %10u\n", atomic_read(&irq_mis_count));
76 * do_IRQ handles all normal device IRQ's (the special
77 * SMP cross-CPU interrupts have their own specific
80 asmlinkage unsigned int do_IRQ(int irq, struct pt_regs *regs)
84 #ifdef CONFIG_DEBUG_STACKOVERFLOW