LXR linux/arch/m68knommu/kernel/irq.c

   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
  21asmlinkage void do_IRQ(int irq, struct pt_regs *regs)
  22{
  23        struct pt_regs *oldregs = set_irq_regs(regs);
  24
  25        irq_enter();
  26        generic_handle_irq(irq);
  27        irq_exit();
  28
  29        set_irq_regs(oldregs);
  30}
  31
  32int 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) {
  41                ap = irq_desc[irq].action;
  42                if (ap) {
  43                        seq_printf(p, "%3d: ", irq);
  44                        seq_printf(p, "%10u ", kstat_irqs(irq));
  45                        seq_printf(p, "%14s  ", irq_desc[irq].chip->name);
  46
  47                        seq_printf(p, "%s", ap->name);
  48                        for (ap = ap->next; ap; ap = ap->next)
  49                                seq_printf(p, ", %s", ap->name);
  50                        seq_putc(p, '\n');
  51                }
  52        }
  53
  54        return 0;
  55}
  56
  57