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#include <linux/config.h> 12 13#if defined(CONFIG_ALPHA_GENERIC) 14 15/* Here NR_IRQS is not exact, but rather an upper bound. This is used 16 many places throughout the kernel to size static arrays. That's ok, 17 we'll use alpha_mv.nr_irqs when we want the real thing. */ 18 19# define NR_IRQS 2048 /* enuff for WILDFIRE with 8 QBBs */ 20 21#elif defined(CONFIG_ALPHA_CABRIOLET) || \ 22 defined(CONFIG_ALPHA_EB66P) || \ 23 defined(CONFIG_ALPHA_EB164) || \ 24 defined(CONFIG_ALPHA_PC164) || \ 25 defined(CONFIG_ALPHA_LX164) 26# define NR_IRQS 35 27 28#elif defined(CONFIG_ALPHA_EB66) || \ 29 defined(CONFIG_ALPHA_EB64P) || \ 30 defined(CONFIG_ALPHA_MIKASA) 31# define NR_IRQS 32 32 33#elif defined(CONFIG_ALPHA_ALCOR) || \ 34 defined(CONFIG_ALPHA_XLT) || \ 35 defined(CONFIG_ALPHA_MIATA) || \ 36 defined(CONFIG_ALPHA_RUFFIAN) || \ 37 defined(CONFIG_ALPHA_RX164) || \ 38 defined(CONFIG_ALPHA_NORITAKE) 39# define NR_IRQS 48 40 41#elif defined(CONFIG_ALPHA_SABLE) || \ 42 defined(CONFIG_ALPHA_SX164) 43# define NR_IRQS 40 44 45#elif defined(CONFIG_ALPHA_DP264) || \ 46 defined(CONFIG_ALPHA_SHARK) || \ 47 defined(CONFIG_ALPHA_EIGER) 48# define NR_IRQS 64 49 50#elif defined(CONFIG_ALPHA_TITAN) 51#define NR_IRQS 80 52 53#elif defined(CONFIG_ALPHA_RAWHIDE) || \ 54 defined(CONFIG_ALPHA_TAKARA) 55# define NR_IRQS 128 56 57#elif defined(CONFIG_ALPHA_WILDFIRE) 58# define NR_IRQS 2048 /* enuff for 8 QBBs */ 59 60#else /* everyone else */ 61# define NR_IRQS 16 62#endif 63 64static __inline__ int irq_cannonicalize(int irq) 65{ 66 return ((irq == 2) ? 9 : irq); 67} 68 69extern void disable_irq(unsigned int); 70extern void disable_irq_nosync(unsigned int); 71extern void enable_irq(unsigned int); 72 73struct pt_regs; 74extern void (*perf_irq)(unsigned long, struct pt_regs *); 75 76 77#endif /* _ALPHA_IRQ_H */ 78