arch/alpha/include/asm/irq.h

#ifndef _ALPHA_IRQ_H
#define _ALPHA_IRQ_H


#include <linux/linkage.h>

#if   defined(CONFIG_ALPHA_GENERIC)



# if defined(CONFIG_ALPHA_LEGACY_START_ADDRESS)
#  define NR_IRQS      (128)           
# else
#  define NR_IRQS      (32768 + 16)    
# 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 

#elif defined(CONFIG_ALPHA_MARVEL)
# define NR_IRQS	(32768 + 16) 	

#else 
# define NR_IRQS	16
#endif

static __inline__ int irq_canonicalize(int irq)
{
	return ((irq == 2) ? 9 : irq);
}

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

#endif