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Linux/arch/m68k/kernel/irq.c

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  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 
 20 asmlinkage 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 */
 33 atomic_t irq_err_count;
 34 
 35 int 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 

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