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#define __ARCH_HAS_DO_SOFTIRQ
41
42#if defined(CONFIG_BOOKE) || defined(CONFIG_40x)
43/*
44 * Per-cpu stacks for handling critical, debug and machine check
45 * level interrupts.
46 */
47extern void *critirq_ctx[NR_CPUS];
48extern void *dbgirq_ctx[NR_CPUS];
49extern void *mcheckirq_ctx[NR_CPUS];
50#endif
51
52/*
53 * Per-cpu stacks for handling hard and soft interrupts.
54 */
55extern void *hardirq_ctx[NR_CPUS];
56extern void *softirq_ctx[NR_CPUS];
57
58void call_do_softirq(void *sp);
59void call_do_irq(struct pt_regs *regs, void *sp);
60extern void do_IRQ(struct pt_regs *regs);
61extern void __init init_IRQ(void);
62extern void __do_irq(struct pt_regs *regs);
63
64int irq_choose_cpu(const struct cpumask *mask);
65
66#endif /* _ASM_IRQ_H */
67#endif /* __KERNEL__ */
68