| /* |
| * 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. |
| * |
| * Copyright (C) 1994 by Waldorf GMBH, written by Ralf Baechle |
| * Copyright (C) 1995, 96, 97, 98, 99, 2000, 01, 02, 03 by Ralf Baechle |
| */ |
| #ifndef _ASM_IRQ_H |
| #define _ASM_IRQ_H |
| |
| #include <linux/config.h> |
| #include <linux/linkage.h> |
| #include <irq.h> |
| |
| #ifdef CONFIG_I8259 |
| static inline int irq_canonicalize(int irq) |
| { |
| return ((irq == 2) ? 9 : irq); |
| } |
| #else |
| #define irq_canonicalize(irq) (irq) /* Sane hardware, sane code ... */ |
| #endif |
| |
| struct pt_regs; |
| |
| extern asmlinkage unsigned int do_IRQ(unsigned int irq, struct pt_regs *regs); |
| |
| #ifdef CONFIG_PREEMPT |
| |
| /* |
| * do_IRQ handles all normal device IRQ's (the special |
| * SMP cross-CPU interrupts have their own specific |
| * handlers). |
| * |
| * Ideally there should be away to get this into kernel/irq/handle.c to |
| * avoid the overhead of a call for just a tiny function ... |
| */ |
| #define do_IRQ(irq, regs) \ |
| do { \ |
| irq_enter(); \ |
| __do_IRQ((irq), (regs)); \ |
| irq_exit(); \ |
| } while (0) |
| |
| #endif |
| |
| extern void arch_init_irq(void); |
| |
| #endif /* _ASM_IRQ_H */ |
