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gerrit-public.fairphone.software / fp2-dev / kernel / msm / cd4ecf877a4d629c38571405fd649077c12dec50 / . / arch / x86 / include / asm / hw_irq.h
blob: bb9efe8706e2bf7b1c1343d153ab2fdf968e601a [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 Sivanich4a4de9c2009-10-14 09:22:57 -0500[diff] [blame]30extern void x86_platform_ipi(void);
Thomas Gleixner2e088432008-05-02 19:00:30 +0200[diff] [blame]31extern void error_interrupt(void);
Peter Zijlstrae360adb2010-10-14 14:01:34 +0800[diff] [blame]32extern void irq_work_interrupt(void);
Ingo Molnar241771e2008-12-03 10:39:53 +0100[diff] [blame]33
Thomas Gleixner2e088432008-05-02 19:00:30 +0200[diff] [blame]34extern void spurious_interrupt(void);
35extern void thermal_interrupt(void);
36extern void reschedule_interrupt(void);
Andi Kleenccc3c312009-05-27 21:56:54 +0200[diff] [blame]37extern void mce_self_interrupt(void);
Thomas Gleixner2e088432008-05-02 19:00:30 +0200[diff] [blame]38
39extern void invalidate_interrupt(void);
40extern void invalidate_interrupt0(void);
41extern void invalidate_interrupt1(void);
42extern void invalidate_interrupt2(void);
43extern void invalidate_interrupt3(void);
44extern void invalidate_interrupt4(void);
45extern void invalidate_interrupt5(void);
46extern void invalidate_interrupt6(void);
47extern void invalidate_interrupt7(void);
Shaohua Li3a09fb42011-01-17 10:52:05 +0800[diff] [blame]48extern void invalidate_interrupt8(void);
49extern void invalidate_interrupt9(void);
50extern void invalidate_interrupt10(void);
51extern void invalidate_interrupt11(void);
52extern void invalidate_interrupt12(void);
53extern void invalidate_interrupt13(void);
54extern void invalidate_interrupt14(void);
55extern void invalidate_interrupt15(void);
56extern void invalidate_interrupt16(void);
57extern void invalidate_interrupt17(void);
58extern void invalidate_interrupt18(void);
59extern void invalidate_interrupt19(void);
60extern void invalidate_interrupt20(void);
61extern void invalidate_interrupt21(void);
62extern void invalidate_interrupt22(void);
63extern void invalidate_interrupt23(void);
64extern void invalidate_interrupt24(void);
65extern void invalidate_interrupt25(void);
66extern void invalidate_interrupt26(void);
67extern void invalidate_interrupt27(void);
68extern void invalidate_interrupt28(void);
69extern void invalidate_interrupt29(void);
70extern void invalidate_interrupt30(void);
71extern void invalidate_interrupt31(void);
Thomas Gleixner2e088432008-05-02 19:00:30 +0200[diff] [blame]72
73extern void irq_move_cleanup_interrupt(void);
Andi Kleen4ef702c2009-05-27 21:56:52 +0200[diff] [blame]74extern void reboot_interrupt(void);
Thomas Gleixner2e088432008-05-02 19:00:30 +0200[diff] [blame]75extern void threshold_interrupt(void);
76
77extern void call_function_interrupt(void);
Ingo Molnar1a781a72008-07-15 21:55:59 +0200[diff] [blame]78extern void call_function_single_interrupt(void);
Thomas Gleixner2e088432008-05-02 19:00:30 +0200[diff] [blame]79
Thomas Gleixner2e088432008-05-02 19:00:30 +0200[diff] [blame]80/* IOAPIC */
Yinghai Luabcaa2b2009-02-08 16:18:03 -0800[diff] [blame]81#define IO_APIC_IRQ(x) (((x) >= NR_IRQS_LEGACY) || ((1<<(x)) & io_apic_irqs))
Thomas Gleixner2e088432008-05-02 19:00:30 +0200[diff] [blame]82extern unsigned long io_apic_irqs;
83
84extern void init_VISWS_APIC_irqs(void);
85extern void setup_IO_APIC(void);
86extern void disable_IO_APIC(void);
Yinghai Lue5198072009-05-15 13:05:16 -0700[diff] [blame]87
88struct io_apic_irq_attr {
89 int ioapic;
90 int ioapic_pin;
91 int trigger;
92 int polarity;
93};
94
95static inline void set_io_apic_irq_attr(struct io_apic_irq_attr *irq_attr,
96 int ioapic, int ioapic_pin,
97 int trigger, int polarity)
98{
Dimitri Sivanich9338ad62009-10-13 15:32:36 -0500[diff] [blame]99 irq_attr->ioapic = ioapic;
100 irq_attr->ioapic_pin = ioapic_pin;
101 irq_attr->trigger = trigger;
102 irq_attr->polarity = polarity;
Yinghai Lue5198072009-05-15 13:05:16 -0700[diff] [blame]103}
104
Thomas Gleixner423f0852010-10-10 11:39:09 +0200[diff] [blame]105struct irq_2_iommu {
106 struct intel_iommu *iommu;
107 u16 irte_index;
108 u16 sub_handle;
109 u8 irte_mask;
110};
111
Dimitri Sivanich9338ad62009-10-13 15:32:36 -0500[diff] [blame]112/*
113 * This is performance-critical, we want to do it O(1)
114 *
115 * Most irqs are mapped 1:1 with pins.
116 */
117struct irq_cfg {
118 struct irq_pin_list *irq_2_pin;
119 cpumask_var_t domain;
120 cpumask_var_t old_domain;
Dimitri Sivanich9338ad62009-10-13 15:32:36 -0500[diff] [blame]121 u8 vector;
122 u8 move_in_progress : 1;
Thomas Gleixner423f0852010-10-10 11:39:09 +0200[diff] [blame]123#ifdef CONFIG_INTR_REMAP
124 struct irq_2_iommu irq_2_iommu;
125#endif
Dimitri Sivanich9338ad62009-10-13 15:32:36 -0500[diff] [blame]126};
127
Dimitri Sivanich9338ad62009-10-13 15:32:36 -0500[diff] [blame]128extern int assign_irq_vector(int, struct irq_cfg *, const struct cpumask *);
129extern void send_cleanup_vector(struct irq_cfg *);
Ingo Molnar7ec13182009-10-14 15:06:42 +0200[diff] [blame]130
Thomas Gleixnerf7e909e2010-10-08 21:40:23 +0200[diff] [blame]131struct irq_data;
132int __ioapic_set_affinity(struct irq_data *, const struct cpumask *,
133 unsigned int *dest_id);
Dimitri Sivanich9338ad62009-10-13 15:32:36 -0500[diff] [blame]134extern int IO_APIC_get_PCI_irq_vector(int bus, int devfn, int pin, struct io_apic_irq_attr *irq_attr);
Thomas Gleixner2e088432008-05-02 19:00:30 +0200[diff] [blame]135extern void setup_ioapic_dest(void);
136
Thomas Gleixner97e7b6f2008-05-02 22:02:25 +0200[diff] [blame]137extern void enable_IO_APIC(void);
Thomas Gleixner97e7b6f2008-05-02 22:02:25 +0200[diff] [blame]138
Thomas Gleixner2e088432008-05-02 19:00:30 +0200[diff] [blame]139/* Statistics */
140extern atomic_t irq_err_count;
141extern atomic_t irq_mis_count;
142
Thomas Gleixner1a331952008-05-03 00:30:50 +0200[diff] [blame]143/* EISA */
144extern void eisa_set_level_irq(unsigned int irq);
145
Jaswinder Singh2b97df02008-07-23 17:13:14 +0530[diff] [blame]146/* SMP */
147extern void smp_apic_timer_interrupt(struct pt_regs *);
Jaswinder Singh2b97df02008-07-23 17:13:14 +0530[diff] [blame]148extern void smp_spurious_interrupt(struct pt_regs *);
Dimitri Sivanich4a4de9c2009-10-14 09:22:57 -0500[diff] [blame]149extern void smp_x86_platform_ipi(struct pt_regs *);
Jaswinder Singh2b97df02008-07-23 17:13:14 +0530[diff] [blame]150extern void smp_error_interrupt(struct pt_regs *);
Jaswinder Singh Rajput2c1b2842009-04-11 00:03:10 +0530[diff] [blame]151#ifdef CONFIG_X86_IO_APIC
152extern asmlinkage void smp_irq_move_cleanup_interrupt(void);
153#endif
Ingo Molnar3e5095d2009-01-27 17:07:08 +0100[diff] [blame]154#ifdef CONFIG_SMP
Jaswinder Singhe7f08df2008-07-25 10:42:26 +0530[diff] [blame]155extern void smp_reschedule_interrupt(struct pt_regs *);
156extern void smp_call_function_interrupt(struct pt_regs *);
157extern void smp_call_function_single_interrupt(struct pt_regs *);
Jaswinder Singhb2139aa2008-07-25 11:32:38 +0530[diff] [blame]158#ifdef CONFIG_X86_32
159extern void smp_invalidate_interrupt(struct pt_regs *);
160#else
161extern asmlinkage void smp_invalidate_interrupt(struct pt_regs *);
162#endif
Jaswinder Singhe7f08df2008-07-25 10:42:26 +0530[diff] [blame]163#endif
Jaswinder Singh2b97df02008-07-23 17:13:14 +0530[diff] [blame]164
H. Peter Anvin46875182008-11-11 13:03:07 -0800[diff] [blame]165extern void (*__initconst interrupt[NR_VECTORS-FIRST_EXTERNAL_VECTOR])(void);
Eric W. Biedermand388e5f2008-08-09 15:09:02 -0700[diff] [blame]166
Yinghai Lu497c9a12008-08-19 20:50:28 -0700[diff] [blame]167typedef int vector_irq_t[NR_VECTORS];
168DECLARE_PER_CPU(vector_irq_t, vector_irq);
Suresh Siddha36e9e1e2010-03-15 14:33:06 -0800[diff] [blame]169extern void setup_vector_irq(int cpu);
Yinghai Lu497c9a12008-08-19 20:50:28 -0700[diff] [blame]170
171#ifdef CONFIG_X86_IO_APIC
Eric W. Biedermand388e5f2008-08-09 15:09:02 -0700[diff] [blame]172extern void lock_vector_lock(void);
173extern void unlock_vector_lock(void);
174extern void __setup_vector_irq(int cpu);
175#else
176static inline void lock_vector_lock(void) {}
177static inline void unlock_vector_lock(void) {}
178static inline void __setup_vector_irq(int cpu) {}
179#endif
Thomas Gleixner2e088432008-05-02 19:00:30 +0200[diff] [blame]180
Thomas Gleixner22dc12d2008-05-02 22:10:39 +0200[diff] [blame]181#endif /* !ASSEMBLY_ */
182
H. Peter Anvin1965aae2008-10-22 22:26:29 -0700[diff] [blame]183#endif /* _ASM_X86_HW_IRQ_H */