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/*
* include/asm-parisc/irq.h
*
* Copyright 2005 Matthew Wilcox <matthew@wil.cx>
*/
#ifndef _ASM_PARISC_IRQ_H
#define _ASM_PARISC_IRQ_H
#include <linux/cpumask.h>
#include <asm/types.h>
#define NO_IRQ (-1)
#ifdef CONFIG_GSC
#define GSC_IRQ_BASE 16
#define GSC_IRQ_MAX 63
#define CPU_IRQ_BASE 64
#else
#define CPU_IRQ_BASE 16
#endif
#define TIMER_IRQ (CPU_IRQ_BASE + 0)
#define IPI_IRQ (CPU_IRQ_BASE + 1)
#define CPU_IRQ_MAX (CPU_IRQ_BASE + (BITS_PER_LONG - 1))
#define NR_IRQS (CPU_IRQ_MAX + 1)
static __inline__ int irq_canonicalize(int irq)
{
return (irq == 2) ? 9 : irq;
}
struct irq_chip;
struct irq_desc;
extern void parisc_do_IRQ(unsigned int irq, struct irq_desc *desc);
/*
* Some useful "we don't have to do anything here" handlers. Should
* probably be provided by the generic code.
*/
void no_ack_irq(unsigned int irq);
void no_end_irq(unsigned int irq);
void cpu_ack_irq(unsigned int irq);
void cpu_eoi_irq(unsigned int irq);
extern int txn_alloc_irq(unsigned int nbits);
extern int txn_claim_irq(int);
extern unsigned int txn_alloc_data(unsigned int);
extern unsigned long txn_alloc_addr(unsigned int);
extern unsigned long txn_affinity_addr(unsigned int irq, int cpu);
extern int cpu_claim_irq(unsigned int irq, struct irq_chip *, void *);
extern int cpu_check_affinity(unsigned int irq, const struct cpumask *dest);
/* soft power switch support (power.c) */
extern struct tasklet_struct power_tasklet;
#endif /* _ASM_PARISC_IRQ_H */
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