projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 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 | ||
| c2ab64d0 | 10 | #include <linux/cpumask.h> |
| 1da177e4 LT |
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 | ||
| 29 | static __inline__ int irq_canonicalize(int irq) | |
| 30 | { | |
| 31 | return (irq == 2) ? 9 : irq; | |
| 32 | } | |
| 33 | ||
| 5cfe87d3 | 34 | struct irq_chip; |
| ba20085c KM |
35 | struct irq_desc; |
| 36 | ||
| 37 | extern void parisc_do_IRQ(unsigned int irq, struct irq_desc *desc); | |
| 1da177e4 LT |
38 | |
| 39 | /* | |
| 40 | * Some useful "we don't have to do anything here" handlers. Should | |
| 41 | * probably be provided by the generic code. | |
| 42 | */ | |
| 43 | void no_ack_irq(unsigned int irq); | |
| 44 | void no_end_irq(unsigned int irq); | |
| 7085689e JB |
45 | void cpu_ack_irq(unsigned int irq); |
| 46 | void cpu_end_irq(unsigned int irq); | |
| 1da177e4 LT |
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); | |
| c2ab64d0 | 52 | extern unsigned long txn_affinity_addr(unsigned int irq, int cpu); |
| 1da177e4 | 53 | |
| 5cfe87d3 | 54 | extern int cpu_claim_irq(unsigned int irq, struct irq_chip *, void *); |
| 8b6649c5 | 55 | extern int cpu_check_affinity(unsigned int irq, const struct cpumask *dest); |
| 1da177e4 LT |
56 | |
| 57 | /* soft power switch support (power.c) */ | |
| 58 | extern struct tasklet_struct power_tasklet; | |
| 59 | ||
| 60 | #endif /* _ASM_PARISC_IRQ_H */ |