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gerrit-public.fairphone.software / kernel / msm / 4687518c4cb7807fbeff21770e309080f9eb7f2f / . / arch / x86 / include / asm / hw_irq.h
blob: 27d33f92afe24b155f4120b059c1742f76f24fa4 [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
28#define platform_legacy_irq(irq) ((irq) < 16)
29
30/* Interrupt handlers registered during init_IRQ */
31extern void apic_timer_interrupt(void);
32extern void error_interrupt(void);
33extern void spurious_interrupt(void);
34extern void thermal_interrupt(void);
35extern void reschedule_interrupt(void);
36
37extern void invalidate_interrupt(void);
38extern void invalidate_interrupt0(void);
39extern void invalidate_interrupt1(void);
40extern void invalidate_interrupt2(void);
41extern void invalidate_interrupt3(void);
42extern void invalidate_interrupt4(void);
43extern void invalidate_interrupt5(void);
44extern void invalidate_interrupt6(void);
45extern void invalidate_interrupt7(void);
46
47extern void irq_move_cleanup_interrupt(void);
48extern void threshold_interrupt(void);
49
50extern void call_function_interrupt(void);
Ingo Molnar1a781a72008-07-15 21:55:59 +0200[diff] [blame]51extern void call_function_single_interrupt(void);
Thomas Gleixner2e088432008-05-02 19:00:30 +0200[diff] [blame]52
53/* PIC specific functions */
54extern void disable_8259A_irq(unsigned int irq);
55extern void enable_8259A_irq(unsigned int irq);
56extern int i8259A_irq_pending(unsigned int irq);
57extern void make_8259A_irq(unsigned int irq);
58extern void init_8259A(int aeoi);
59
60/* IOAPIC */
61#define IO_APIC_IRQ(x) (((x) >= 16) || ((1<<(x)) & io_apic_irqs))
62extern unsigned long io_apic_irqs;
63
64extern void init_VISWS_APIC_irqs(void);
65extern void setup_IO_APIC(void);
66extern void disable_IO_APIC(void);
Thomas Gleixner2e088432008-05-02 19:00:30 +0200[diff] [blame]67extern int IO_APIC_get_PCI_irq_vector(int bus, int slot, int fn);
68extern void setup_ioapic_dest(void);
69
Thomas Gleixner97e7b6f2008-05-02 22:02:25 +0200[diff] [blame]70#ifdef CONFIG_X86_64
71extern void enable_IO_APIC(void);
72#endif
73
Thomas Gleixner2e088432008-05-02 19:00:30 +0200[diff] [blame]74/* IPI functions */
Suresh Siddhacff73a62008-07-10 11:16:53 -0700[diff] [blame]75#ifdef CONFIG_X86_32
Thomas Gleixner2e088432008-05-02 19:00:30 +0200[diff] [blame]76extern void send_IPI_self(int vector);
Suresh Siddhacff73a62008-07-10 11:16:53 -0700[diff] [blame]77#endif
Thomas Gleixner2e088432008-05-02 19:00:30 +0200[diff] [blame]78extern void send_IPI(int dest, int vector);
79
80/* Statistics */
81extern atomic_t irq_err_count;
82extern atomic_t irq_mis_count;
83
Thomas Gleixner1a331952008-05-03 00:30:50 +0200[diff] [blame]84/* EISA */
85extern void eisa_set_level_irq(unsigned int irq);
86
Thomas Gleixner9b7dc562008-05-02 20:10:09 +0200[diff] [blame]87/* Voyager functions */
88extern asmlinkage void vic_cpi_interrupt(void);
89extern asmlinkage void vic_sys_interrupt(void);
90extern asmlinkage void vic_cmn_interrupt(void);
91extern asmlinkage void qic_timer_interrupt(void);
92extern asmlinkage void qic_invalidate_interrupt(void);
93extern asmlinkage void qic_reschedule_interrupt(void);
94extern asmlinkage void qic_enable_irq_interrupt(void);
95extern asmlinkage void qic_call_function_interrupt(void);
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 *);
Jaswinder Singhe7f08df2008-07-25 10:42:26 +0530[diff] [blame]101#ifdef CONFIG_X86_SMP
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
Thomas Gleixner96a388d2007-10-11 11:20:03 +0200[diff] [blame]112#ifdef CONFIG_X86_32
H. Peter Anvin46875182008-11-11 13:03:07 -0800[diff] [blame^]113extern void (*__initconst interrupt[NR_VECTORS-FIRST_EXTERNAL_VECTOR])(void);
Thomas Gleixner96a388d2007-10-11 11:20:03 +0200[diff] [blame]114#endif
Eric W. Biedermand388e5f2008-08-09 15:09:02 -0700[diff] [blame]115
Yinghai Lu497c9a12008-08-19 20:50:28 -0700[diff] [blame]116typedef int vector_irq_t[NR_VECTORS];
117DECLARE_PER_CPU(vector_irq_t, vector_irq);
118
119#ifdef CONFIG_X86_IO_APIC
Eric W. Biedermand388e5f2008-08-09 15:09:02 -0700[diff] [blame]120extern void lock_vector_lock(void);
121extern void unlock_vector_lock(void);
122extern void __setup_vector_irq(int cpu);
123#else
124static inline void lock_vector_lock(void) {}
125static inline void unlock_vector_lock(void) {}
126static inline void __setup_vector_irq(int cpu) {}
127#endif
Thomas Gleixner2e088432008-05-02 19:00:30 +0200[diff] [blame]128
Thomas Gleixner22dc12d2008-05-02 22:10:39 +0200[diff] [blame]129#endif /* !ASSEMBLY_ */
130
H. Peter Anvin1965aae2008-10-22 22:26:29 -0700[diff] [blame]131#endif /* _ASM_X86_HW_IRQ_H */