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gerrit-public.fairphone.software / kernel / msm-4.19 / 2c1b284e4fa260fd922b9a65c99169e2630c6862 / . / arch / x86 / include / asm / hw_irq.h
blob: be9ae4111c94eaad5ba385fffb1e870da4c90740 [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);
Thomas Gleixner2e088432008-05-02 19:00:30 +0200[diff] [blame]66extern int IO_APIC_get_PCI_irq_vector(int bus, int slot, int fn);
67extern void setup_ioapic_dest(void);
68
Thomas Gleixner97e7b6f2008-05-02 22:02:25 +0200[diff] [blame]69extern void enable_IO_APIC(void);
Thomas Gleixner97e7b6f2008-05-02 22:02:25 +0200[diff] [blame]70
Thomas Gleixner2e088432008-05-02 19:00:30 +0200[diff] [blame]71/* Statistics */
72extern atomic_t irq_err_count;
73extern atomic_t irq_mis_count;
74
Thomas Gleixner1a331952008-05-03 00:30:50 +0200[diff] [blame]75/* EISA */
76extern void eisa_set_level_irq(unsigned int irq);
77
Jaswinder Singh2b97df02008-07-23 17:13:14 +0530[diff] [blame]78/* SMP */
79extern void smp_apic_timer_interrupt(struct pt_regs *);
Jaswinder Singh2b97df02008-07-23 17:13:14 +0530[diff] [blame]80extern void smp_spurious_interrupt(struct pt_regs *);
Jaswinder Singh Rajput2c1b2842009-04-11 00:03:10 +0530[diff] [blame^]81extern void smp_generic_interrupt(struct pt_regs *);
Jaswinder Singh2b97df02008-07-23 17:13:14 +0530[diff] [blame]82extern void smp_error_interrupt(struct pt_regs *);
Jaswinder Singh Rajput2c1b2842009-04-11 00:03:10 +0530[diff] [blame^]83#ifdef CONFIG_X86_IO_APIC
84extern asmlinkage void smp_irq_move_cleanup_interrupt(void);
85#endif
Ingo Molnar3e5095d2009-01-27 17:07:08 +0100[diff] [blame]86#ifdef CONFIG_SMP
Jaswinder Singhe7f08df2008-07-25 10:42:26 +0530[diff] [blame]87extern void smp_reschedule_interrupt(struct pt_regs *);
88extern void smp_call_function_interrupt(struct pt_regs *);
89extern void smp_call_function_single_interrupt(struct pt_regs *);
Jaswinder Singhb2139aa2008-07-25 11:32:38 +0530[diff] [blame]90#ifdef CONFIG_X86_32
91extern void smp_invalidate_interrupt(struct pt_regs *);
92#else
93extern asmlinkage void smp_invalidate_interrupt(struct pt_regs *);
94#endif
Jaswinder Singhe7f08df2008-07-25 10:42:26 +0530[diff] [blame]95#endif
Jaswinder Singh2b97df02008-07-23 17:13:14 +0530[diff] [blame]96
H. Peter Anvin46875182008-11-11 13:03:07 -0800[diff] [blame]97extern void (*__initconst interrupt[NR_VECTORS-FIRST_EXTERNAL_VECTOR])(void);
Eric W. Biedermand388e5f2008-08-09 15:09:02 -0700[diff] [blame]98
Yinghai Lu497c9a12008-08-19 20:50:28 -0700[diff] [blame]99typedef int vector_irq_t[NR_VECTORS];
100DECLARE_PER_CPU(vector_irq_t, vector_irq);
101
102#ifdef CONFIG_X86_IO_APIC
Eric W. Biedermand388e5f2008-08-09 15:09:02 -0700[diff] [blame]103extern void lock_vector_lock(void);
104extern void unlock_vector_lock(void);
105extern void __setup_vector_irq(int cpu);
106#else
107static inline void lock_vector_lock(void) {}
108static inline void unlock_vector_lock(void) {}
109static inline void __setup_vector_irq(int cpu) {}
110#endif
Thomas Gleixner2e088432008-05-02 19:00:30 +0200[diff] [blame]111
Thomas Gleixner22dc12d2008-05-02 22:10:39 +0200[diff] [blame]112#endif /* !ASSEMBLY_ */
113
H. Peter Anvin1965aae2008-10-22 22:26:29 -0700[diff] [blame]114#endif /* _ASM_X86_HW_IRQ_H */