| Greg Ungerer | 2502b667 | 2007-07-19 01:49:12 -0700 | [diff] [blame] | 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 | |
| 21 | asmlinkage void do_IRQ(int irq, struct pt_regs *regs) |
| 22 | { |
| 23 | struct pt_regs *oldregs = set_irq_regs(regs); |
| 24 | |
| 25 | irq_enter(); |
| Greg Ungerer | 454dc5f | 2009-03-20 09:53:59 +1000 | [diff] [blame] | 26 | generic_handle_irq(irq); |
| Greg Ungerer | 2502b667 | 2007-07-19 01:49:12 -0700 | [diff] [blame] | 27 | irq_exit(); |
| 28 | |
| 29 | set_irq_regs(oldregs); |
| 30 | } |
| Geert Uytterhoeven | 8c9f08f | 2011-07-13 20:29:24 +0200 | [diff] [blame] | 31 | |
| 32 | |
| 33 | /* The number of spurious interrupts */ |
| 34 | atomic_t irq_err_count; |
| 35 | |
| 36 | int arch_show_interrupts(struct seq_file *p, int prec) |
| 37 | { |
| 38 | seq_printf(p, "%*s: %10u\n", prec, "ERR", atomic_read(&irq_err_count)); |
| 39 | return 0; |
| 40 | } |
