LXR linux/arch/m68k/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/traps.h>
  19
  20asmlinkage 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 */
  33atomic_t irq_err_count;
  34
  35int 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