[linux-2.6-block.git] / include / asm-parisc / irq.h

/*
 * 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;

/*
 * 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_end_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, cpumask_t *dest);

/* soft power switch support (power.c) */
extern struct tasklet_struct power_tasklet;

#endif	/* _ASM_PARISC_IRQ_H */
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;
1da177e4 LT	35
	36	/*
	37	* Some useful "we don't have to do anything here" handlers. Should
	38	* probably be provided by the generic code.
	39	*/
	40	void no_ack_irq(unsigned int irq);
	41	void no_end_irq(unsigned int irq);
7085689e JB	42	void cpu_ack_irq(unsigned int irq);
7085689e JB	43	void cpu_end_irq(unsigned int irq);
1da177e4 LT	44
	45	extern int txn_alloc_irq(unsigned int nbits);
	46	extern int txn_claim_irq(int);
	47	extern unsigned int txn_alloc_data(unsigned int);
	48	extern unsigned long txn_alloc_addr(unsigned int);
c2ab64d0	49	extern unsigned long txn_affinity_addr(unsigned int irq, int cpu);
1da177e4	50
5cfe87d3	51	extern int cpu_claim_irq(unsigned int irq, struct irq_chip , void );
c2ab64d0	52	extern int cpu_check_affinity(unsigned int irq, cpumask_t *dest);
1da177e4 LT	53
	54	/* soft power switch support (power.c) */
	55	extern struct tasklet_struct power_tasklet;
	56
	57	#endif /* _ASM_PARISC_IRQ_H */