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gerrit-public.fairphone.software / kernel / msm-4.9 / a7c2ded6962da1ee289c37a988b73d313388c803 / . / arch / powerpc / include / asm / irq.h
blob: e8e3a0a04eb079b179d3a67c47641a0ad95b07da [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]1#ifdef __KERNEL__
Paul Mackerras1b923132005-10-10 22:54:57 +1000[diff] [blame]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 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]11
Grant Likelybae1d8f2012-02-14 14:06:50 -0700[diff] [blame]12#include <linux/irqdomain.h>
Paul Mackerras1b923132005-10-10 22:54:57 +1000[diff] [blame]13#include <linux/threads.h>
Benjamin Herrenschmidt0ebfff12006-07-03 21:36:01 +1000[diff] [blame]14#include <linux/list.h>
15#include <linux/radix-tree.h>
Paul Mackerras1b923132005-10-10 22:54:57 +1000[diff] [blame]16
17#include <asm/types.h>
Arun Sharma600634972011-07-26 16:09:06 -0700[diff] [blame]18#include <linux/atomic.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]19
Benjamin Herrenschmidt0ebfff12006-07-03 21:36:01 +1000[diff] [blame]20
Benjamin Herrenschmidt0ebfff12006-07-03 21:36:01 +1000[diff] [blame]21extern atomic_t ppc_n_lost_interrupts;
22
Benjamin Herrenschmidt0ebfff12006-07-03 21:36:01 +1000[diff] [blame]23/* This number is used when no interrupt has been assigned */
24#define NO_IRQ (0)
25
Michael Ellerman551b81f2009-10-13 19:44:44 +0000[diff] [blame]26/* Total number of virq in the platform */
27#define NR_IRQS CONFIG_NR_IRQS
Benjamin Herrenschmidt0ebfff12006-07-03 21:36:01 +1000[diff] [blame]28
Michael Ellermancd015702009-10-13 19:45:03 +0000[diff] [blame]29/* Same thing, used by the generic IRQ code */
30#define NR_IRQS_LEGACY NUM_ISA_INTERRUPTS
31
Olof Johansson35923f122007-06-04 14:47:04 +1000[diff] [blame]32extern irq_hw_number_t virq_to_hw(unsigned int virq);
Benjamin Herrenschmidt0b05ac62011-04-04 13:46:58 +1000[diff] [blame]33
Benjamin Herrenschmidt0ebfff12006-07-03 21:36:01 +1000[diff] [blame]34static __inline__ int irq_canonicalize(int irq)
35{
36 return irq;
37}
38
Paul Mackerras1b923132005-10-10 22:54:57 +1000[diff] [blame]39extern int distribute_irqs;
40
41struct irqaction;
42struct pt_regs;
43
Paul Mackerrasc6622f62006-02-24 10:06:59 +1100[diff] [blame]44#define __ARCH_HAS_DO_SOFTIRQ
45
Kumar Galabcf0b082008-04-30 03:49:55 -0500[diff] [blame]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
Paul Mackerras1b923132005-10-10 22:54:57 +1000[diff] [blame]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);
Benjamin Herrenschmidt0366a1c2013-09-23 14:29:11 +1000[diff] [blame]67extern void call_do_irq(struct pt_regs *regs, struct thread_info *tp);
Paul Mackerrasf2783c12005-10-20 09:23:26 +1000[diff] [blame]68extern void do_IRQ(struct pt_regs *regs);
Benjamin Herrenschmidt0366a1c2013-09-23 14:29:11 +1000[diff] [blame]69extern void __do_irq(struct pt_regs *regs);
Paul Mackerrasf2783c12005-10-20 09:23:26 +1000[diff] [blame]70
Stuart Yoder6ec36b52011-05-19 08:54:26 -0500[diff] [blame]71int irq_choose_cpu(const struct cpumask *mask);
72
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]73#endif /* _ASM_IRQ_H */
74#endif /* __KERNEL__ */