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/irqdomain.h> 10#include <linux/threads.h> 11#include <linux/list.h> 12#include <linux/radix-tree.h> 13 14#include <asm/types.h> 15#include <linux/atomic.h> 16 17 18extern atomic_t ppc_n_lost_interrupts; 19 20/* This number is used when no interrupt has been assigned */ 21#define NO_IRQ (0) 22 23/* Total number of virq in the platform */ 24#define NR_IRQS CONFIG_NR_IRQS 25 26/* Same thing, used by the generic IRQ code */ 27#define NR_IRQS_LEGACY NUM_ISA_INTERRUPTS 28 29extern irq_hw_number_t virq_to_hw(unsigned int virq); 30 31static __inline__ int irq_canonicalize(int irq) 32{ 33 return irq; 34} 35 36extern int distribute_irqs; 37 38struct pt_regs; 39 40#if defined(CONFIG_BOOKE) || defined(CONFIG_40x) 41/* 42 * Per-cpu stacks for handling critical, debug and machine check 43 * level interrupts. 44 */ 45extern void *critirq_ctx[NR_CPUS]; 46extern void *dbgirq_ctx[NR_CPUS]; 47extern void *mcheckirq_ctx[NR_CPUS]; 48#endif 49 50/* 51 * Per-cpu stacks for handling hard and soft interrupts. 52 */ 53extern void *hardirq_ctx[NR_CPUS]; 54extern void *softirq_ctx[NR_CPUS]; 55 56void call_do_softirq(void *sp); 57void call_do_irq(struct pt_regs *regs, void *sp); 58extern void do_IRQ(struct pt_regs *regs); 59extern void __init init_IRQ(void); 60extern void __do_irq(struct pt_regs *regs); 61 62int irq_choose_cpu(const struct cpumask *mask); 63 64#endif /* _ASM_IRQ_H */ 65#endif /* __KERNEL__ */ 66