irq.h (1298B)
1/* SPDX-License-Identifier: GPL-2.0-or-later */ 2#ifdef __KERNEL__ 3#ifndef _ASM_POWERPC_IRQ_H 4#define _ASM_POWERPC_IRQ_H 5 6/* 7 */ 8 9#include <linux/threads.h> 10#include <linux/list.h> 11#include <linux/radix-tree.h> 12 13#include <asm/types.h> 14#include <linux/atomic.h> 15 16 17extern atomic_t ppc_n_lost_interrupts; 18 19/* This number is used when no interrupt has been assigned */ 20#define NO_IRQ (0) 21 22/* Total number of virq in the platform */ 23#define NR_IRQS CONFIG_NR_IRQS 24 25/* Number of irqs reserved for a legacy isa controller */ 26#define NR_IRQS_LEGACY 16 27 28extern irq_hw_number_t virq_to_hw(unsigned int virq); 29 30static __inline__ int irq_canonicalize(int irq) 31{ 32 return irq; 33} 34 35extern int distribute_irqs; 36 37struct pt_regs; 38 39#ifdef CONFIG_BOOKE_OR_40x 40/* 41 * Per-cpu stacks for handling critical, debug and machine check 42 * level interrupts. 43 */ 44extern void *critirq_ctx[NR_CPUS]; 45extern void *dbgirq_ctx[NR_CPUS]; 46extern void *mcheckirq_ctx[NR_CPUS]; 47#endif 48 49/* 50 * Per-cpu stacks for handling hard and soft interrupts. 51 */ 52extern void *hardirq_ctx[NR_CPUS]; 53extern void *softirq_ctx[NR_CPUS]; 54 55void __do_IRQ(struct pt_regs *regs); 56extern void __init init_IRQ(void); 57extern void __do_irq(struct pt_regs *regs); 58 59int irq_choose_cpu(const struct cpumask *mask); 60 61#endif /* _ASM_IRQ_H */ 62#endif /* __KERNEL__ */