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