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1da177e4 LT |
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/config.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 | ||
f26fdd59 KW |
29 | /* |
30 | * IRQ line status macro IRQ_PER_CPU is used | |
31 | */ | |
32 | #define ARCH_HAS_IRQ_PER_CPU | |
33 | ||
1da177e4 LT |
34 | static __inline__ int irq_canonicalize(int irq) |
35 | { | |
36 | return (irq == 2) ? 9 : irq; | |
37 | } | |
38 | ||
39 | struct hw_interrupt_type; | |
40 | ||
41 | /* | |
42 | * Some useful "we don't have to do anything here" handlers. Should | |
43 | * probably be provided by the generic code. | |
44 | */ | |
45 | void no_ack_irq(unsigned int irq); | |
46 | void no_end_irq(unsigned int irq); | |
47 | ||
48 | extern int txn_alloc_irq(unsigned int nbits); | |
49 | extern int txn_claim_irq(int); | |
50 | extern unsigned int txn_alloc_data(unsigned int); | |
51 | extern unsigned long txn_alloc_addr(unsigned int); | |
52 | ||
53 | extern int cpu_claim_irq(unsigned int irq, struct hw_interrupt_type *, void *); | |
54 | ||
55 | extern int cpu_claim_irq(unsigned int irq, struct hw_interrupt_type *, void *); | |
56 | ||
57 | /* soft power switch support (power.c) */ | |
58 | extern struct tasklet_struct power_tasklet; | |
59 | ||
60 | #endif /* _ASM_PARISC_IRQ_H */ |