1#ifndef _ALPHA_IRQ_H 2#define _ALPHA_IRQ_H 3 4/* 5 * linux/include/alpha/irq.h 6 * 7 * (C) 1994 Linus Torvalds 8 */ 9 10#include <linux/linkage.h> 11 12#if defined(CONFIG_ALPHA_GENERIC) 13 14/* Here NR_IRQS is not exact, but rather an upper bound. This is used 15 many places throughout the kernel to size static arrays. That's ok, 16 we'll use alpha_mv.nr_irqs when we want the real thing. */ 17 18/* When LEGACY_START_ADDRESS is selected, we leave out: 19 TITAN 20 WILDFIRE 21 MARVEL 22 23 This helps keep the kernel object size reasonable for the majority 24 of machines. 25*/ 26 27# if defined(CONFIG_ALPHA_LEGACY_START_ADDRESS) 28# define NR_IRQS (128) /* max is RAWHIDE/TAKARA */ 29# else 30# define NR_IRQS (32768 + 16) /* marvel - 32 pids */ 31# endif 32 33#elif defined(CONFIG_ALPHA_CABRIOLET) || \ 34 defined(CONFIG_ALPHA_EB66P) || \ 35 defined(CONFIG_ALPHA_EB164) || \ 36 defined(CONFIG_ALPHA_PC164) || \ 37 defined(CONFIG_ALPHA_LX164) 38# define NR_IRQS 35 39 40#elif defined(CONFIG_ALPHA_EB66) || \ 41 defined(CONFIG_ALPHA_EB64P) || \ 42 defined(CONFIG_ALPHA_MIKASA) 43# define NR_IRQS 32 44 45#elif defined(CONFIG_ALPHA_ALCOR) || \ 46 defined(CONFIG_ALPHA_MIATA) || \ 47 defined(CONFIG_ALPHA_RUFFIAN) || \ 48 defined(CONFIG_ALPHA_RX164) || \ 49 defined(CONFIG_ALPHA_NORITAKE) 50# define NR_IRQS 48 51 52#elif defined(CONFIG_ALPHA_SABLE) || \ 53 defined(CONFIG_ALPHA_SX164) 54# define NR_IRQS 40 55 56#elif defined(CONFIG_ALPHA_DP264) || \ 57 defined(CONFIG_ALPHA_LYNX) || \ 58 defined(CONFIG_ALPHA_SHARK) || \ 59 defined(CONFIG_ALPHA_EIGER) 60# define NR_IRQS 64 61 62#elif defined(CONFIG_ALPHA_TITAN) 63#define NR_IRQS 80 64 65#elif defined(CONFIG_ALPHA_RAWHIDE) || \ 66 defined(CONFIG_ALPHA_TAKARA) 67# define NR_IRQS 128 68 69#elif defined(CONFIG_ALPHA_WILDFIRE) 70# define NR_IRQS 2048 /* enuff for 8 QBBs */ 71 72#elif defined(CONFIG_ALPHA_MARVEL) 73# define NR_IRQS (32768 + 16) /* marvel - 32 pids*/ 74 75#else /* everyone else */ 76# define NR_IRQS 16 77#endif 78 79static __inline__ int irq_canonicalize(int irq) 80{ 81 /* 82 * XXX is this true for all Alpha's? The old serial driver 83 * did it this way for years without any complaints, so.... 84 */ 85 return ((irq == 2) ? 9 : irq); 86} 87 88struct pt_regs; 89extern void (*perf_irq)(unsigned long, struct pt_regs *); 90 91#endif /* _ALPHA_IRQ_H */ 92