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review.shift-gmbh.com / SHIFTPHONES / mainline / linux / a254a9da455c171441ab3a76ed8f5d1e9412e15f / . / arch / powerpc / include / asm / irq.h
blob: 13f0409dd617e35cfa061fa638b27b0670b3b5e8 [file] [log] [blame]
Thomas Gleixner2874c5f2019-05-27 08:55:01 +0200[diff] [blame]1/* SPDX-License-Identifier: GPL-2.0-or-later */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]2#ifdef __KERNEL__
Paul Mackerras1b923132005-10-10 22:54:57 +1000[diff] [blame]3#ifndef _ASM_POWERPC_IRQ_H
4#define _ASM_POWERPC_IRQ_H
5
6/*
Paul Mackerras1b923132005-10-10 22:54:57 +1000[diff] [blame]7 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]8
Paul Mackerras1b923132005-10-10 22:54:57 +1000[diff] [blame]9#include <linux/threads.h>
Benjamin Herrenschmidt0ebfff12006-07-03 21:36:01 +1000[diff] [blame]10#include <linux/list.h>
11#include <linux/radix-tree.h>
Paul Mackerras1b923132005-10-10 22:54:57 +1000[diff] [blame]12
13#include <asm/types.h>
Arun Sharma600634972011-07-26 16:09:06 -0700[diff] [blame]14#include <linux/atomic.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]15
Benjamin Herrenschmidt0ebfff12006-07-03 21:36:01 +1000[diff] [blame]16
Benjamin Herrenschmidt0ebfff12006-07-03 21:36:01 +1000[diff] [blame]17extern atomic_t ppc_n_lost_interrupts;
18
Benjamin Herrenschmidt0ebfff12006-07-03 21:36:01 +1000[diff] [blame]19/* This number is used when no interrupt has been assigned */
20#define NO_IRQ (0)
21
Michael Ellerman551b81f2009-10-13 19:44:44 +0000[diff] [blame]22/* Total number of virq in the platform */
23#define NR_IRQS CONFIG_NR_IRQS
Benjamin Herrenschmidt0ebfff12006-07-03 21:36:01 +1000[diff] [blame]24
Marc Zyngier7c576f42018-09-13 10:42:25 +0100[diff] [blame]25/* Number of irqs reserved for a legacy isa controller */
26#define NR_IRQS_LEGACY 16
Michael Ellermancd015702009-10-13 19:45:03 +0000[diff] [blame]27
Olof Johansson35923f122007-06-04 14:47:04 +1000[diff] [blame]28extern irq_hw_number_t virq_to_hw(unsigned int virq);
Benjamin Herrenschmidt0b05ac62011-04-04 13:46:58 +1000[diff] [blame]29
Benjamin Herrenschmidt0ebfff12006-07-03 21:36:01 +1000[diff] [blame]30static __inline__ int irq_canonicalize(int irq)
31{
32 return irq;
33}
34
Paul Mackerras1b923132005-10-10 22:54:57 +1000[diff] [blame]35extern int distribute_irqs;
36
Paul Mackerras1b923132005-10-10 22:54:57 +1000[diff] [blame]37struct pt_regs;
38
Christophe Leroy047a6fd2021-10-19 09:29:25 +0200[diff] [blame]39#ifdef CONFIG_BOOKE_OR_40x
Kumar Galabcf0b082008-04-30 03:49:55 -0500[diff] [blame]40/*
41 * Per-cpu stacks for handling critical, debug and machine check
42 * level interrupts.
43 */
Christophe Leroya7916a12019-01-31 10:09:00 +0000[diff] [blame]44extern void *critirq_ctx[NR_CPUS];
45extern void *dbgirq_ctx[NR_CPUS];
46extern void *mcheckirq_ctx[NR_CPUS];
Kumar Galabcf0b082008-04-30 03:49:55 -0500[diff] [blame]47#endif
48
Paul Mackerras1b923132005-10-10 22:54:57 +1000[diff] [blame]49/*
50 * Per-cpu stacks for handling hard and soft interrupts.
51 */
Christophe Leroya7916a12019-01-31 10:09:00 +0000[diff] [blame]52extern void *hardirq_ctx[NR_CPUS];
53extern void *softirq_ctx[NR_CPUS];
Paul Mackerras1b923132005-10-10 22:54:57 +1000[diff] [blame]54
Christophe Leroy98694162021-08-10 16:13:16 +0000[diff] [blame]55void __do_IRQ(struct pt_regs *regs);
Mathieu Malaterre23a6d8b2018-02-25 18:22:31 +0100[diff] [blame]56extern void __init init_IRQ(void);
Benjamin Herrenschmidt0366a1c2013-09-23 14:29:11 +1000[diff] [blame]57extern void __do_irq(struct pt_regs *regs);
Paul Mackerrasf2783c12005-10-20 09:23:26 +1000[diff] [blame]58
Stuart Yoder6ec36b52011-05-19 08:54:26 -0500[diff] [blame]59int irq_choose_cpu(const struct cpumask *mask);
60
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]61#endif /* _ASM_IRQ_H */
62#endif /* __KERNEL__ */