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gerrit-public.fairphone.software / kernel / msm-4.9 / 22dc12d1f694b9af88e616ab758ff90c69d0fc83 / . / include / asm-x86 / hw_irq.h
blob: 1db2dff1ef490bc96b4bc0e941b39b9316b11927 [file] [log] [blame]
Thomas Gleixner2e088432008-05-02 19:00:30 +0200[diff] [blame]1#ifndef _ASM_HW_IRQ_H
2#define _ASM_HW_IRQ_H
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);
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 */
60#define IO_APIC_IRQ(x) (((x) >= 16) || ((1<<(x)) & io_apic_irqs))
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);
66extern void print_IO_APIC(void);
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 */
75extern void send_IPI_self(int vector);
76extern void send_IPI(int dest, int vector);
77
78/* Statistics */
79extern atomic_t irq_err_count;
80extern atomic_t irq_mis_count;
81
Thomas Gleixner9b7dc562008-05-02 20:10:09 +0200[diff] [blame]82/* Voyager functions */
83extern asmlinkage void vic_cpi_interrupt(void);
84extern asmlinkage void vic_sys_interrupt(void);
85extern asmlinkage void vic_cmn_interrupt(void);
86extern asmlinkage void qic_timer_interrupt(void);
87extern asmlinkage void qic_invalidate_interrupt(void);
88extern asmlinkage void qic_reschedule_interrupt(void);
89extern asmlinkage void qic_enable_irq_interrupt(void);
90extern asmlinkage void qic_call_function_interrupt(void);
91
Thomas Gleixner96a388d2007-10-11 11:20:03 +0200[diff] [blame]92#ifdef CONFIG_X86_32
Thomas Gleixner22dc12d2008-05-02 22:10:39 +0200[diff] [blame^]93extern void (*const interrupt[NR_IRQS])(void);
Thomas Gleixner96a388d2007-10-11 11:20:03 +0200[diff] [blame]94#else
Thomas Gleixner22dc12d2008-05-02 22:10:39 +0200[diff] [blame^]95typedef int vector_irq_t[NR_VECTORS];
96DECLARE_PER_CPU(vector_irq_t, vector_irq);
97extern void __setup_vector_irq(int cpu);
98extern spinlock_t vector_lock;
Thomas Gleixner96a388d2007-10-11 11:20:03 +0200[diff] [blame]99#endif
Thomas Gleixner2e088432008-05-02 19:00:30 +0200[diff] [blame]100
Thomas Gleixner22dc12d2008-05-02 22:10:39 +0200[diff] [blame^]101#endif /* !ASSEMBLY_ */
102
Thomas Gleixner2e088432008-05-02 19:00:30 +0200[diff] [blame]103#endif