/* SPDX-License-Identifier: GPL-2.0 */ #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) # define NR_IRQS 64 #elif defined(CONFIG_ALPHA_TITAN) #define NR_IRQS 80 #elif defined(CONFIG_ALPHA_RAWHIDE) || \ defined(CONFIG_ALPHA_TAKARA) || \ defined(CONFIG_ALPHA_EIGER) # 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 */
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