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gerrit-public.fairphone.software / kernel / msm-4.9 / e5198075c67a22ec9a09565b1ce88d3d3f5ba855 / . / arch / x86 / include / asm / hw_irq.h
blob: a7d14bbae110319cc67ebe6762c0b26d92693fc4 [file] [log] [blame]
H. Peter Anvin1965aae2008-10-22 22:26:29 -0700[diff] [blame]1#ifndef _ASM_X86_HW_IRQ_H
2#define _ASM_X86_HW_IRQ_H
Thomas Gleixner2e088432008-05-02 19:00:30 +0200[diff] [blame]3
4/*
5 * (C) 1992, 1993 Linus Torvalds, (C) 1997 Ingo Molnar
6 *
7 * moved some of the old arch/i386/kernel/irq.h to here. VY
8 *
9 * IRQ/IPI changes taken from work by Thomas Radke
10 * <tomsoft@informatik.tu-chemnitz.de>
11 *
12 * hacked by Andi Kleen for x86-64.
13 * unified by tglx
14 */
15
Thomas Gleixner9b7dc562008-05-02 20:10:09 +0200[diff] [blame]16#include <asm/irq_vectors.h>
Thomas Gleixner2e088432008-05-02 19:00:30 +0200[diff] [blame]17
18#ifndef __ASSEMBLY__
19
20#include <linux/percpu.h>
21#include <linux/profile.h>
22#include <linux/smp.h>
23
24#include <asm/atomic.h>
25#include <asm/irq.h>
26#include <asm/sections.h>
27
Thomas Gleixner2e088432008-05-02 19:00:30 +0200[diff] [blame]28/* Interrupt handlers registered during init_IRQ */
29extern void apic_timer_interrupt(void);
Dimitri Sivanichacaabe72009-03-04 12:56:05 -0600[diff] [blame]30extern void generic_interrupt(void);
Thomas Gleixner2e088432008-05-02 19:00:30 +0200[diff] [blame]31extern void error_interrupt(void);
32extern void spurious_interrupt(void);
33extern void thermal_interrupt(void);
34extern void reschedule_interrupt(void);
35
36extern void invalidate_interrupt(void);
37extern void invalidate_interrupt0(void);
38extern void invalidate_interrupt1(void);
39extern void invalidate_interrupt2(void);
40extern void invalidate_interrupt3(void);
41extern void invalidate_interrupt4(void);
42extern void invalidate_interrupt5(void);
43extern void invalidate_interrupt6(void);
44extern void invalidate_interrupt7(void);
45
46extern void irq_move_cleanup_interrupt(void);
47extern void threshold_interrupt(void);
48
49extern void call_function_interrupt(void);
Ingo Molnar1a781a72008-07-15 21:55:59 +0200[diff] [blame]50extern void call_function_single_interrupt(void);
Thomas Gleixner2e088432008-05-02 19:00:30 +0200[diff] [blame]51
52/* PIC specific functions */
53extern void disable_8259A_irq(unsigned int irq);
54extern void enable_8259A_irq(unsigned int irq);
55extern int i8259A_irq_pending(unsigned int irq);
56extern void make_8259A_irq(unsigned int irq);
57extern void init_8259A(int aeoi);
58
59/* IOAPIC */
Yinghai Luabcaa2b2009-02-08 16:18:03 -0800[diff] [blame]60#define IO_APIC_IRQ(x) (((x) >= NR_IRQS_LEGACY) || ((1<<(x)) & io_apic_irqs))
Thomas Gleixner2e088432008-05-02 19:00:30 +0200[diff] [blame]61extern unsigned long io_apic_irqs;
62
63extern void init_VISWS_APIC_irqs(void);
64extern void setup_IO_APIC(void);
65extern void disable_IO_APIC(void);
Yinghai Lue5198072009-05-15 13:05:16 -0700[diff] [blame^]66
67struct io_apic_irq_attr {
68 int ioapic;
69 int ioapic_pin;
70 int trigger;
71 int polarity;
72};
73
74static inline void set_io_apic_irq_attr(struct io_apic_irq_attr *irq_attr,
75 int ioapic, int ioapic_pin,
76 int trigger, int polarity)
77{
78 irq_attr->ioapic = ioapic;
79 irq_attr->ioapic_pin = ioapic_pin;
80 irq_attr->trigger = trigger;
81 irq_attr->polarity = polarity;
82}
83
Yinghai Lue20c06f2009-05-06 10:08:22 -0700[diff] [blame]84extern int IO_APIC_get_PCI_irq_vector(int bus, int devfn, int pin,
Yinghai Lue5198072009-05-15 13:05:16 -0700[diff] [blame^]85 struct io_apic_irq_attr *irq_attr);
Thomas Gleixner2e088432008-05-02 19:00:30 +0200[diff] [blame]86extern void setup_ioapic_dest(void);
87
Thomas Gleixner97e7b6f2008-05-02 22:02:25 +0200[diff] [blame]88extern void enable_IO_APIC(void);
Thomas Gleixner97e7b6f2008-05-02 22:02:25 +0200[diff] [blame]89
Thomas Gleixner2e088432008-05-02 19:00:30 +0200[diff] [blame]90/* Statistics */
91extern atomic_t irq_err_count;
92extern atomic_t irq_mis_count;
93
Thomas Gleixner1a331952008-05-03 00:30:50 +0200[diff] [blame]94/* EISA */
95extern void eisa_set_level_irq(unsigned int irq);
96
Jaswinder Singh2b97df02008-07-23 17:13:14 +0530[diff] [blame]97/* SMP */
98extern void smp_apic_timer_interrupt(struct pt_regs *);
Jaswinder Singh2b97df02008-07-23 17:13:14 +0530[diff] [blame]99extern void smp_spurious_interrupt(struct pt_regs *);
100extern void smp_error_interrupt(struct pt_regs *);
Ingo Molnar3e5095d2009-01-27 17:07:08 +0100[diff] [blame]101#ifdef CONFIG_SMP
Jaswinder Singhe7f08df2008-07-25 10:42:26 +0530[diff] [blame]102extern void smp_reschedule_interrupt(struct pt_regs *);
103extern void smp_call_function_interrupt(struct pt_regs *);
104extern void smp_call_function_single_interrupt(struct pt_regs *);
Jaswinder Singhb2139aa2008-07-25 11:32:38 +0530[diff] [blame]105#ifdef CONFIG_X86_32
106extern void smp_invalidate_interrupt(struct pt_regs *);
107#else
108extern asmlinkage void smp_invalidate_interrupt(struct pt_regs *);
109#endif
Jaswinder Singhe7f08df2008-07-25 10:42:26 +0530[diff] [blame]110#endif
Jaswinder Singh2b97df02008-07-23 17:13:14 +0530[diff] [blame]111
H. Peter Anvin46875182008-11-11 13:03:07 -0800[diff] [blame]112extern void (*__initconst interrupt[NR_VECTORS-FIRST_EXTERNAL_VECTOR])(void);
Eric W. Biedermand388e5f2008-08-09 15:09:02 -0700[diff] [blame]113
Yinghai Lu497c9a12008-08-19 20:50:28 -0700[diff] [blame]114typedef int vector_irq_t[NR_VECTORS];
115DECLARE_PER_CPU(vector_irq_t, vector_irq);
116
117#ifdef CONFIG_X86_IO_APIC
Eric W. Biedermand388e5f2008-08-09 15:09:02 -0700[diff] [blame]118extern void lock_vector_lock(void);
119extern void unlock_vector_lock(void);
120extern void __setup_vector_irq(int cpu);
121#else
122static inline void lock_vector_lock(void) {}
123static inline void unlock_vector_lock(void) {}
124static inline void __setup_vector_irq(int cpu) {}
125#endif
Thomas Gleixner2e088432008-05-02 19:00:30 +0200[diff] [blame]126
Thomas Gleixner22dc12d2008-05-02 22:10:39 +0200[diff] [blame]127#endif /* !ASSEMBLY_ */
128
H. Peter Anvin1965aae2008-10-22 22:26:29 -0700[diff] [blame]129#endif /* _ASM_X86_HW_IRQ_H */