2 * include/asm-parisc/irq.h
4 * Copyright 2005 Matthew Wilcox <matthew@wil.cx>
7 #ifndef _ASM_PARISC_IRQ_H
8 #define _ASM_PARISC_IRQ_H
10 #include <linux/config.h>
11 #include <linux/cpumask.h>
12 #include <asm/types.h>
17 #define GSC_IRQ_BASE 16
18 #define GSC_IRQ_MAX 63
19 #define CPU_IRQ_BASE 64
21 #define CPU_IRQ_BASE 16
24 #define TIMER_IRQ (CPU_IRQ_BASE + 0)
25 #define IPI_IRQ (CPU_IRQ_BASE + 1)
26 #define CPU_IRQ_MAX (CPU_IRQ_BASE + (BITS_PER_LONG - 1))
28 #define NR_IRQS (CPU_IRQ_MAX + 1)
31 * IRQ line status macro IRQ_PER_CPU is used
33 #define ARCH_HAS_IRQ_PER_CPU
35 static __inline__ int irq_canonicalize(int irq)
37 return (irq == 2) ? 9 : irq;
40 struct hw_interrupt_type;
43 * Some useful "we don't have to do anything here" handlers. Should
44 * probably be provided by the generic code.
46 void no_ack_irq(unsigned int irq);
47 void no_end_irq(unsigned int irq);
49 extern int txn_alloc_irq(unsigned int nbits);
50 extern int txn_claim_irq(int);
51 extern unsigned int txn_alloc_data(unsigned int);
52 extern unsigned long txn_alloc_addr(unsigned int);
53 extern unsigned long txn_affinity_addr(unsigned int irq, int cpu);
55 extern int cpu_claim_irq(unsigned int irq, struct hw_interrupt_type *, void *);
56 extern int cpu_check_affinity(unsigned int irq, cpumask_t *dest);
58 /* soft power switch support (power.c) */
59 extern struct tasklet_struct power_tasklet;
61 #endif /* _ASM_PARISC_IRQ_H */