1#ifdef __KERNEL__ 2#ifndef _ASM_POWERPC_IRQ_H 3#define _ASM_POWERPC_IRQ_H 4 5/* 6 * This program is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU General Public License 8 * as published by the Free Software Foundation; either version 9 * 2 of the License, or (at your option) any later version. 10 */ 11 12#include <linux/irqdomain.h> 13#include <linux/threads.h> 14#include <linux/list.h> 15#include <linux/radix-tree.h> 16 17#include <asm/types.h> 18#include <linux/atomic.h> 19 20 21extern atomic_t ppc_n_lost_interrupts; 22 23/* This number is used when no interrupt has been assigned */ 24#define NO_IRQ (0) 25 26/* Total number of virq in the platform */ 27#define NR_IRQS CONFIG_NR_IRQS 28 29/* Same thing, used by the generic IRQ code */ 30#define NR_IRQS_LEGACY NUM_ISA_INTERRUPTS 31 32extern irq_hw_number_t virq_to_hw(unsigned int virq); 33 34static __inline__ int irq_canonicalize(int irq) 35{ 36 return irq; 37} 38 39extern int distribute_irqs; 40 41struct irqaction; 42struct pt_regs; 43 44#define __ARCH_HAS_DO_SOFTIRQ 45 46#if defined(CONFIG_BOOKE) || defined(CONFIG_40x) 47/* 48 * Per-cpu stacks for handling critical, debug and machine check 49 * level interrupts. 50 */ 51extern struct thread_info *critirq_ctx[NR_CPUS]; 52extern struct thread_info *dbgirq_ctx[NR_CPUS]; 53extern struct thread_info *mcheckirq_ctx[NR_CPUS]; 54extern void exc_lvl_ctx_init(void); 55#else 56#define exc_lvl_ctx_init() 57#endif 58 59/* 60 * Per-cpu stacks for handling hard and soft interrupts. 61 */ 62extern struct thread_info *hardirq_ctx[NR_CPUS]; 63extern struct thread_info *softirq_ctx[NR_CPUS]; 64 65extern void irq_ctx_init(void); 66extern void call_do_softirq(struct thread_info *tp); 67extern void call_do_irq(struct pt_regs *regs, struct thread_info *tp); 68extern void do_IRQ(struct pt_regs *regs); 69extern void __do_irq(struct pt_regs *regs); 70 71int irq_choose_cpu(const struct cpumask *mask); 72 73#endif /* _ASM_IRQ_H */ 74#endif /* __KERNEL__ */ 75