#ifndef _ALPHA_IRQ_H
#define _ALPHA_IRQ_H

/*
* linux/include/alpha/irq.h
*
* (C) 1994 Linus Torvalds
*/

#include <linux/linkage.h>

#if defined(CONFIG_ALPHA_GENERIC)

/* Here NR_IRQS is not exact, but rather an upper bound. This is used
many places throughout the kernel to size static arrays. That's ok,
we'll use alpha_mv.nr_irqs when we want the real thing. */

/* When LEGACY_START_ADDRESS is selected, we leave out:
TITAN
WILDFIRE
MARVEL

This helps keep the kernel object size reasonable for the majority
of machines.
*/

# if defined(CONFIG_ALPHA_LEGACY_START_ADDRESS)
# define NR_IRQS (128) /* max is RAWHIDE/TAKARA */
# else
# define NR_IRQS (32768 + 16) /* marvel - 32 pids */
# endif

#elif defined(CONFIG_ALPHA_CABRIOLET) || \
defined(CONFIG_ALPHA_EB66P) || \
defined(CONFIG_ALPHA_EB164) || \
defined(CONFIG_ALPHA_PC164) || \
defined(CONFIG_ALPHA_LX164)
# define NR_IRQS 35

#elif defined(CONFIG_ALPHA_EB66) || \
defined(CONFIG_ALPHA_EB64P) || \
defined(CONFIG_ALPHA_MIKASA)
# define NR_IRQS 32

#elif defined(CONFIG_ALPHA_ALCOR) || \
defined(CONFIG_ALPHA_MIATA) || \
defined(CONFIG_ALPHA_RUFFIAN) || \
defined(CONFIG_ALPHA_RX164) || \
defined(CONFIG_ALPHA_NORITAKE)
# define NR_IRQS 48

#elif defined(CONFIG_ALPHA_SABLE) || \
defined(CONFIG_ALPHA_SX164)
# define NR_IRQS 40

#elif defined(CONFIG_ALPHA_DP264) || \
defined(CONFIG_ALPHA_LYNX) || \
defined(CONFIG_ALPHA_SHARK) || \
defined(CONFIG_ALPHA_EIGER)
# define NR_IRQS 64

#elif defined(CONFIG_ALPHA_TITAN)
#define NR_IRQS 80

#elif defined(CONFIG_ALPHA_RAWHIDE) || \
defined(CONFIG_ALPHA_TAKARA)
# define NR_IRQS 128

#elif defined(CONFIG_ALPHA_WILDFIRE)
# define NR_IRQS 2048 /* enuff for 8 QBBs */

#elif defined(CONFIG_ALPHA_MARVEL)
# define NR_IRQS (32768 + 16) /* marvel - 32 pids*/

#else /* everyone else */
# define NR_IRQS 16
#endif

static __inline__ int irq_canonicalize(int irq)
{
/*
* XXX is this true for all Alpha's? The old serial driver
* did it this way for years without any complaints, so....
*/
return ((irq == 2) ? 9 : irq);
}

struct pt_regs;
extern void (*perf_irq)(unsigned long, struct pt_regs *);

#endif /* _ALPHA_IRQ_H */