2007-07-19 16:49:12 +08:00
|
|
|
/*
|
|
|
|
* irq.c
|
|
|
|
*
|
|
|
|
* (C) Copyright 2007, Greg Ungerer <gerg@snapgear.com>
|
|
|
|
*
|
|
|
|
* This file is subject to the terms and conditions of the GNU General Public
|
|
|
|
* License. See the file COPYING in the main directory of this archive
|
|
|
|
* for more details.
|
|
|
|
*/
|
|
|
|
|
|
|
|
#include <linux/types.h>
|
|
|
|
#include <linux/init.h>
|
|
|
|
#include <linux/kernel.h>
|
|
|
|
#include <linux/kernel_stat.h>
|
|
|
|
#include <linux/interrupt.h>
|
|
|
|
#include <linux/irq.h>
|
|
|
|
#include <linux/seq_file.h>
|
|
|
|
#include <asm/traps.h>
|
|
|
|
|
|
|
|
asmlinkage void do_IRQ(int irq, struct pt_regs *regs)
|
|
|
|
{
|
|
|
|
struct pt_regs *oldregs = set_irq_regs(regs);
|
|
|
|
|
|
|
|
irq_enter();
|
2009-03-20 07:53:59 +08:00
|
|
|
generic_handle_irq(irq);
|
2007-07-19 16:49:12 +08:00
|
|
|
irq_exit();
|
|
|
|
|
|
|
|
set_irq_regs(oldregs);
|
|
|
|
}
|
2011-07-14 02:29:24 +08:00
|
|
|
|
|
|
|
|
|
|
|
/* The number of spurious interrupts */
|
|
|
|
atomic_t irq_err_count;
|
|
|
|
|
|
|
|
int arch_show_interrupts(struct seq_file *p, int prec)
|
|
|
|
{
|
|
|
|
seq_printf(p, "%*s: %10u\n", prec, "ERR", atomic_read(&irq_err_count));
|
|
|
|
return 0;
|
|
|
|
}
|