blob: 8a342ccb34a80e34c3c52835759d675744162142 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
|
/*
* 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 */
|
