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/* Total number of virq in the platform */ 20#define NR_IRQS CONFIG_NR_IRQS 21 22/* Number of irqs reserved for a legacy isa controller */ 23#define NR_IRQS_LEGACY 16 24 25extern irq_hw_number_t virq_to_hw(unsigned int virq); 26 27static __inline__ int irq_canonicalize(int irq) 28{ 29 return irq; 30} 31 32extern int distribute_irqs; 33 34struct pt_regs; 35 36#ifdef CONFIG_BOOKE_OR_40x 37/* 38 * Per-cpu stacks for handling critical, debug and machine check 39 * level interrupts. 40 */ 41extern void *critirq_ctx[NR_CPUS]; 42extern void *dbgirq_ctx[NR_CPUS]; 43extern void *mcheckirq_ctx[NR_CPUS]; 44#endif 45 46/* 47 * Per-cpu stacks for handling hard and soft interrupts. 48 */ 49extern void *hardirq_ctx[NR_CPUS]; 50extern void *softirq_ctx[NR_CPUS]; 51 52void __do_IRQ(struct pt_regs *regs); 53 54int irq_choose_cpu(const struct cpumask *mask); 55 56#if defined(CONFIG_PPC_BOOK3S_64) && defined(CONFIG_NMI_IPI) 57extern void arch_trigger_cpumask_backtrace(const cpumask_t *mask, 58 int exclude_cpu); 59#define arch_trigger_cpumask_backtrace arch_trigger_cpumask_backtrace 60#endif 61 62#endif /* _ASM_IRQ_H */ 63#endif /* __KERNEL__ */ 64