1/*
2 * include/asm-parisc/irq.h
3 *
4 * Copyright 2005 Matthew Wilcox <matthew@wil.cx>
5 */
6
7#ifndef _ASM_PARISC_IRQ_H
8#define _ASM_PARISC_IRQ_H
9
10#include <linux/cpumask.h>
11#include <asm/types.h>
12
13#define NO_IRQ		(-1)
14
15#ifdef CONFIG_GSC
16#define GSC_IRQ_BASE	16
17#define GSC_IRQ_MAX	63
18#define CPU_IRQ_BASE	64
19#else
20#define CPU_IRQ_BASE	16
21#endif
22
23#define TIMER_IRQ	(CPU_IRQ_BASE + 0)
24#define	IPI_IRQ		(CPU_IRQ_BASE + 1)
25#define CPU_IRQ_MAX	(CPU_IRQ_BASE + (BITS_PER_LONG - 1))
26
27#define NR_IRQS		(CPU_IRQ_MAX + 1)
28
29static __inline__ int irq_canonicalize(int irq)
30{
31	return (irq == 2) ? 9 : irq;
32}
33
34struct irq_chip;
35
36/*
37 * Some useful "we don't have to do anything here" handlers.  Should
38 * probably be provided by the generic code.
39 */
40void no_ack_irq(unsigned int irq);
41void no_end_irq(unsigned int irq);
42void cpu_ack_irq(unsigned int irq);
43void cpu_end_irq(unsigned int irq);
44
45extern int txn_alloc_irq(unsigned int nbits);
46extern int txn_claim_irq(int);
47extern unsigned int txn_alloc_data(unsigned int);
48extern unsigned long txn_alloc_addr(unsigned int);
49extern unsigned long txn_affinity_addr(unsigned int irq, int cpu);
50
51extern int cpu_claim_irq(unsigned int irq, struct irq_chip *, void *);
52extern int cpu_check_affinity(unsigned int irq, cpumask_t *dest);
53
54/* soft power switch support (power.c) */
55extern struct tasklet_struct power_tasklet;
56
57#endif	/* _ASM_PARISC_IRQ_H */
58