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nv-tegra.nvidia.com / linux-4.4 / f254f3909efaf59ca2d0f408de2d044dace60706 / . / arch / x86 / include / asm / hw_irq.h
blob: 370e1c83bb49a27048d4641546bef5f76efd0faa [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);
30extern void error_interrupt(void);
31extern void spurious_interrupt(void);
32extern void thermal_interrupt(void);
33extern void reschedule_interrupt(void);
34
35extern void invalidate_interrupt(void);
36extern void invalidate_interrupt0(void);
37extern void invalidate_interrupt1(void);
38extern void invalidate_interrupt2(void);
39extern void invalidate_interrupt3(void);
40extern void invalidate_interrupt4(void);
41extern void invalidate_interrupt5(void);
42extern void invalidate_interrupt6(void);
43extern void invalidate_interrupt7(void);
44
45extern void irq_move_cleanup_interrupt(void);
46extern void threshold_interrupt(void);
47
48extern void call_function_interrupt(void);
Ingo Molnar1a781a72008-07-15 21:55:59 +0200[diff] [blame]49extern void call_function_single_interrupt(void);
Thomas Gleixner2e088432008-05-02 19:00:30 +0200[diff] [blame]50
51/* PIC specific functions */
52extern void disable_8259A_irq(unsigned int irq);
53extern void enable_8259A_irq(unsigned int irq);
54extern int i8259A_irq_pending(unsigned int irq);
55extern void make_8259A_irq(unsigned int irq);
56extern void init_8259A(int aeoi);
57
58/* IOAPIC */
Yinghai Luabcaa2b2009-02-08 16:18:03 -0800[diff] [blame]59#define IO_APIC_IRQ(x) (((x) >= NR_IRQS_LEGACY) || ((1<<(x)) & io_apic_irqs))
Thomas Gleixner2e088432008-05-02 19:00:30 +0200[diff] [blame]60extern unsigned long io_apic_irqs;
61
62extern void init_VISWS_APIC_irqs(void);
63extern void setup_IO_APIC(void);
64extern void disable_IO_APIC(void);
Thomas Gleixner2e088432008-05-02 19:00:30 +0200[diff] [blame]65extern int IO_APIC_get_PCI_irq_vector(int bus, int slot, int fn);
66extern void setup_ioapic_dest(void);
67
Thomas Gleixner97e7b6f2008-05-02 22:02:25 +0200[diff] [blame]68extern void enable_IO_APIC(void);
Thomas Gleixner97e7b6f2008-05-02 22:02:25 +0200[diff] [blame]69
Thomas Gleixner2e088432008-05-02 19:00:30 +0200[diff] [blame]70/* Statistics */
71extern atomic_t irq_err_count;
72extern atomic_t irq_mis_count;
73
Thomas Gleixner1a331952008-05-03 00:30:50 +0200[diff] [blame]74/* EISA */
75extern void eisa_set_level_irq(unsigned int irq);
76
Jaswinder Singh2b97df02008-07-23 17:13:14 +0530[diff] [blame]77/* SMP */
78extern void smp_apic_timer_interrupt(struct pt_regs *);
Jaswinder Singh2b97df02008-07-23 17:13:14 +0530[diff] [blame]79extern void smp_spurious_interrupt(struct pt_regs *);
80extern void smp_error_interrupt(struct pt_regs *);
Ingo Molnar3e5095d2009-01-27 17:07:08 +0100[diff] [blame]81#ifdef CONFIG_SMP
Jaswinder Singhe7f08df2008-07-25 10:42:26 +0530[diff] [blame]82extern void smp_reschedule_interrupt(struct pt_regs *);
83extern void smp_call_function_interrupt(struct pt_regs *);
84extern void smp_call_function_single_interrupt(struct pt_regs *);
Jaswinder Singhb2139aa2008-07-25 11:32:38 +0530[diff] [blame]85#ifdef CONFIG_X86_32
86extern void smp_invalidate_interrupt(struct pt_regs *);
87#else
88extern asmlinkage void smp_invalidate_interrupt(struct pt_regs *);
89#endif
Jaswinder Singhe7f08df2008-07-25 10:42:26 +0530[diff] [blame]90#endif
Jaswinder Singh2b97df02008-07-23 17:13:14 +0530[diff] [blame]91
H. Peter Anvin46875182008-11-11 13:03:07 -0800[diff] [blame]92extern void (*__initconst interrupt[NR_VECTORS-FIRST_EXTERNAL_VECTOR])(void);
Eric W. Biedermand388e5f2008-08-09 15:09:02 -0700[diff] [blame]93
Yinghai Lu497c9a12008-08-19 20:50:28 -0700[diff] [blame]94typedef int vector_irq_t[NR_VECTORS];
95DECLARE_PER_CPU(vector_irq_t, vector_irq);
96
97#ifdef CONFIG_X86_IO_APIC
Eric W. Biedermand388e5f2008-08-09 15:09:02 -0700[diff] [blame]98extern void lock_vector_lock(void);
99extern void unlock_vector_lock(void);
100extern void __setup_vector_irq(int cpu);
101#else
102static inline void lock_vector_lock(void) {}
103static inline void unlock_vector_lock(void) {}
104static inline void __setup_vector_irq(int cpu) {}
105#endif
Thomas Gleixner2e088432008-05-02 19:00:30 +0200[diff] [blame]106
Thomas Gleixner22dc12d2008-05-02 22:10:39 +0200[diff] [blame]107#endif /* !ASSEMBLY_ */
108
H. Peter Anvin1965aae2008-10-22 22:26:29 -0700[diff] [blame]109#endif /* _ASM_X86_HW_IRQ_H */