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__ */

 
 1#ifdef __KERNEL__
 2#ifndef _ASM_POWERPC_IRQ_H
 3#define _ASM_POWERPC_IRQ_H
 4
 5/*
 6 * This program is free software; you can redistribute it and/or
 7 * modify it under the terms of the GNU General Public License
 8 * as published by the Free Software Foundation; either version
 9 * 2 of the License, or (at your option) any later version.
10 */
11
12#include <linux/irqdomain.h>
13#include <linux/threads.h>
14#include <linux/list.h>
15#include <linux/radix-tree.h>
16
17#include <asm/types.h>
18#include <linux/atomic.h>
19
20
21extern atomic_t ppc_n_lost_interrupts;
22
23/* This number is used when no interrupt has been assigned */
24#define NO_IRQ			(0)
25
26/* Total number of virq in the platform */
27#define NR_IRQS		CONFIG_NR_IRQS
28
29/* Same thing, used by the generic IRQ code */
30#define NR_IRQS_LEGACY		NUM_ISA_INTERRUPTS
31
32extern irq_hw_number_t virq_to_hw(unsigned int virq);
33
34static __inline__ int irq_canonicalize(int irq)
35{
36	return irq;
37}
38
39extern int distribute_irqs;
40
41struct irqaction;
42struct pt_regs;
43
44#define __ARCH_HAS_DO_SOFTIRQ
45
46#if defined(CONFIG_BOOKE) || defined(CONFIG_40x)
47/*
48 * Per-cpu stacks for handling critical, debug and machine check
49 * level interrupts.
50 */
51extern struct thread_info *critirq_ctx[NR_CPUS];
52extern struct thread_info *dbgirq_ctx[NR_CPUS];
53extern struct thread_info *mcheckirq_ctx[NR_CPUS];
54extern void exc_lvl_ctx_init(void);
55#else
56#define exc_lvl_ctx_init()
57#endif
58
59/*
60 * Per-cpu stacks for handling hard and soft interrupts.
61 */
62extern struct thread_info *hardirq_ctx[NR_CPUS];
63extern struct thread_info *softirq_ctx[NR_CPUS];
64
65extern void irq_ctx_init(void);
66extern void call_do_softirq(struct thread_info *tp);
67extern void call_do_irq(struct pt_regs *regs, struct thread_info *tp);
68extern void do_IRQ(struct pt_regs *regs);
69extern void __do_irq(struct pt_regs *regs);
70
71int irq_choose_cpu(const struct cpumask *mask);
 
 
 
 
 
 
72
73#endif /* _ASM_IRQ_H */
74#endif /* __KERNEL__ */