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gerrit-public.fairphone.software / kernel / msm-4.9 / ccc3c3192ae78dd56dcdf5353fd1a9ef5f9a3e2b / . / arch / x86 / include / asm / hw_irq.h
blob: 4e59197e29bac6c12a6e7ab672de4310754f4e08 [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);
Andi Kleenccc3c312009-05-27 21:56:54 +0200[diff] [blame^]35extern void mce_self_interrupt(void);
Thomas Gleixner2e088432008-05-02 19:00:30 +0200[diff] [blame]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 */
Yinghai Luabcaa2b2009-02-08 16:18:03 -0800[diff] [blame]61#define IO_APIC_IRQ(x) (((x) >= NR_IRQS_LEGACY) || ((1<<(x)) & io_apic_irqs))
Thomas Gleixner2e088432008-05-02 19:00:30 +0200[diff] [blame]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);
Yinghai Lue5198072009-05-15 13:05:16 -0700[diff] [blame]67
68struct io_apic_irq_attr {
69 int ioapic;
70 int ioapic_pin;
71 int trigger;
72 int polarity;
73};
74
75static inline void set_io_apic_irq_attr(struct io_apic_irq_attr *irq_attr,
76 int ioapic, int ioapic_pin,
77 int trigger, int polarity)
78{
79 irq_attr->ioapic = ioapic;
80 irq_attr->ioapic_pin = ioapic_pin;
81 irq_attr->trigger = trigger;
82 irq_attr->polarity = polarity;
83}
84
Yinghai Lue20c06f2009-05-06 10:08:22 -0700[diff] [blame]85extern int IO_APIC_get_PCI_irq_vector(int bus, int devfn, int pin,
Yinghai Lue5198072009-05-15 13:05:16 -0700[diff] [blame]86 struct io_apic_irq_attr *irq_attr);
Thomas Gleixner2e088432008-05-02 19:00:30 +0200[diff] [blame]87extern void setup_ioapic_dest(void);
88
Thomas Gleixner97e7b6f2008-05-02 22:02:25 +0200[diff] [blame]89extern void enable_IO_APIC(void);
Thomas Gleixner97e7b6f2008-05-02 22:02:25 +0200[diff] [blame]90
Thomas Gleixner2e088432008-05-02 19:00:30 +0200[diff] [blame]91/* Statistics */
92extern atomic_t irq_err_count;
93extern atomic_t irq_mis_count;
94
Thomas Gleixner1a331952008-05-03 00:30:50 +0200[diff] [blame]95/* EISA */
96extern void eisa_set_level_irq(unsigned int irq);
97
Jaswinder Singh2b97df02008-07-23 17:13:14 +0530[diff] [blame]98/* SMP */
99extern void smp_apic_timer_interrupt(struct pt_regs *);
Jaswinder Singh2b97df02008-07-23 17:13:14 +0530[diff] [blame]100extern void smp_spurious_interrupt(struct pt_regs *);
101extern void smp_error_interrupt(struct pt_regs *);
Ingo Molnar3e5095d2009-01-27 17:07:08 +0100[diff] [blame]102#ifdef CONFIG_SMP
Jaswinder Singhe7f08df2008-07-25 10:42:26 +0530[diff] [blame]103extern void smp_reschedule_interrupt(struct pt_regs *);
104extern void smp_call_function_interrupt(struct pt_regs *);
105extern void smp_call_function_single_interrupt(struct pt_regs *);
Jaswinder Singhb2139aa2008-07-25 11:32:38 +0530[diff] [blame]106#ifdef CONFIG_X86_32
107extern void smp_invalidate_interrupt(struct pt_regs *);
108#else
109extern asmlinkage void smp_invalidate_interrupt(struct pt_regs *);
110#endif
Jaswinder Singhe7f08df2008-07-25 10:42:26 +0530[diff] [blame]111#endif
Jaswinder Singh2b97df02008-07-23 17:13:14 +0530[diff] [blame]112
H. Peter Anvin46875182008-11-11 13:03:07 -0800[diff] [blame]113extern void (*__initconst interrupt[NR_VECTORS-FIRST_EXTERNAL_VECTOR])(void);
Eric W. Biedermand388e5f2008-08-09 15:09:02 -0700[diff] [blame]114
Yinghai Lu497c9a12008-08-19 20:50:28 -0700[diff] [blame]115typedef int vector_irq_t[NR_VECTORS];
116DECLARE_PER_CPU(vector_irq_t, vector_irq);
117
118#ifdef CONFIG_X86_IO_APIC
Eric W. Biedermand388e5f2008-08-09 15:09:02 -0700[diff] [blame]119extern void lock_vector_lock(void);
120extern void unlock_vector_lock(void);
121extern void __setup_vector_irq(int cpu);
122#else
123static inline void lock_vector_lock(void) {}
124static inline void unlock_vector_lock(void) {}
125static inline void __setup_vector_irq(int cpu) {}
126#endif
Thomas Gleixner2e088432008-05-02 19:00:30 +0200[diff] [blame]127
Thomas Gleixner22dc12d2008-05-02 22:10:39 +0200[diff] [blame]128#endif /* !ASSEMBLY_ */
129
H. Peter Anvin1965aae2008-10-22 22:26:29 -0700[diff] [blame]130#endif /* _ASM_X86_HW_IRQ_H */