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gerrit-public.fairphone.software / kernel / msm-4.19 / 9338ad6ffb70eca97f335d93c54943828c8b209e / . / arch / x86 / include / asm / hw_irq.h
blob: 56f0877c93293876a3a10ab4e36f8b6caf0cfa09 [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);
Peter Zijlstrab6276f32009-04-06 11:45:03 +0200[diff] [blame]32extern void perf_pending_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);
48
49extern void irq_move_cleanup_interrupt(void);
Andi Kleen4ef702c2009-05-27 21:56:52 +0200[diff] [blame]50extern void reboot_interrupt(void);
Thomas Gleixner2e088432008-05-02 19:00:30 +0200[diff] [blame]51extern void threshold_interrupt(void);
52
53extern void call_function_interrupt(void);
Ingo Molnar1a781a72008-07-15 21:55:59 +0200[diff] [blame]54extern void call_function_single_interrupt(void);
Thomas Gleixner2e088432008-05-02 19:00:30 +0200[diff] [blame]55
56/* PIC specific functions */
57extern void disable_8259A_irq(unsigned int irq);
58extern void enable_8259A_irq(unsigned int irq);
59extern int i8259A_irq_pending(unsigned int irq);
60extern void make_8259A_irq(unsigned int irq);
61extern void init_8259A(int aeoi);
62
63/* IOAPIC */
Yinghai Luabcaa2b2009-02-08 16:18:03 -0800[diff] [blame]64#define IO_APIC_IRQ(x) (((x) >= NR_IRQS_LEGACY) || ((1<<(x)) & io_apic_irqs))
Thomas Gleixner2e088432008-05-02 19:00:30 +0200[diff] [blame]65extern unsigned long io_apic_irqs;
66
67extern void init_VISWS_APIC_irqs(void);
68extern void setup_IO_APIC(void);
69extern void disable_IO_APIC(void);
Yinghai Lue5198072009-05-15 13:05:16 -0700[diff] [blame]70
71struct io_apic_irq_attr {
72 int ioapic;
73 int ioapic_pin;
74 int trigger;
75 int polarity;
76};
77
78static inline void set_io_apic_irq_attr(struct io_apic_irq_attr *irq_attr,
79 int ioapic, int ioapic_pin,
80 int trigger, int polarity)
81{
Dimitri Sivanich9338ad62009-10-13 15:32:36 -0500[diff] [blame^]82 irq_attr->ioapic = ioapic;
83 irq_attr->ioapic_pin = ioapic_pin;
84 irq_attr->trigger = trigger;
85 irq_attr->polarity = polarity;
Yinghai Lue5198072009-05-15 13:05:16 -0700[diff] [blame]86}
87
Dimitri Sivanich9338ad62009-10-13 15:32:36 -0500[diff] [blame^]88/*
89 * This is performance-critical, we want to do it O(1)
90 *
91 * Most irqs are mapped 1:1 with pins.
92 */
93struct irq_cfg {
94 struct irq_pin_list *irq_2_pin;
95 cpumask_var_t domain;
96 cpumask_var_t old_domain;
97 unsigned move_cleanup_count;
98 u8 vector;
99 u8 move_in_progress : 1;
100};
101
102extern struct irq_cfg *irq_cfg(unsigned int);
103extern int assign_irq_vector(int, struct irq_cfg *, const struct cpumask *);
104extern void send_cleanup_vector(struct irq_cfg *);
105extern unsigned int set_desc_affinity(struct irq_desc *, const struct cpumask *);
106extern 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]107extern void setup_ioapic_dest(void);
108
Thomas Gleixner97e7b6f2008-05-02 22:02:25 +0200[diff] [blame]109extern void enable_IO_APIC(void);
Thomas Gleixner97e7b6f2008-05-02 22:02:25 +0200[diff] [blame]110
Thomas Gleixner2e088432008-05-02 19:00:30 +0200[diff] [blame]111/* Statistics */
112extern atomic_t irq_err_count;
113extern atomic_t irq_mis_count;
114
Thomas Gleixner1a331952008-05-03 00:30:50 +0200[diff] [blame]115/* EISA */
116extern void eisa_set_level_irq(unsigned int irq);
117
Jaswinder Singh2b97df02008-07-23 17:13:14 +0530[diff] [blame]118/* SMP */
119extern void smp_apic_timer_interrupt(struct pt_regs *);
Jaswinder Singh2b97df02008-07-23 17:13:14 +0530[diff] [blame]120extern void smp_spurious_interrupt(struct pt_regs *);
Jaswinder Singh Rajput2c1b2842009-04-11 00:03:10 +0530[diff] [blame]121extern void smp_generic_interrupt(struct pt_regs *);
Jaswinder Singh2b97df02008-07-23 17:13:14 +0530[diff] [blame]122extern void smp_error_interrupt(struct pt_regs *);
Jaswinder Singh Rajput2c1b2842009-04-11 00:03:10 +0530[diff] [blame]123#ifdef CONFIG_X86_IO_APIC
124extern asmlinkage void smp_irq_move_cleanup_interrupt(void);
125#endif
Ingo Molnar3e5095d2009-01-27 17:07:08 +0100[diff] [blame]126#ifdef CONFIG_SMP
Jaswinder Singhe7f08df2008-07-25 10:42:26 +0530[diff] [blame]127extern void smp_reschedule_interrupt(struct pt_regs *);
128extern void smp_call_function_interrupt(struct pt_regs *);
129extern void smp_call_function_single_interrupt(struct pt_regs *);
Jaswinder Singhb2139aa2008-07-25 11:32:38 +0530[diff] [blame]130#ifdef CONFIG_X86_32
131extern void smp_invalidate_interrupt(struct pt_regs *);
132#else
133extern asmlinkage void smp_invalidate_interrupt(struct pt_regs *);
134#endif
Jaswinder Singhe7f08df2008-07-25 10:42:26 +0530[diff] [blame]135#endif
Jaswinder Singh2b97df02008-07-23 17:13:14 +0530[diff] [blame]136
H. Peter Anvin46875182008-11-11 13:03:07 -0800[diff] [blame]137extern void (*__initconst interrupt[NR_VECTORS-FIRST_EXTERNAL_VECTOR])(void);
Eric W. Biedermand388e5f2008-08-09 15:09:02 -0700[diff] [blame]138
Yinghai Lu497c9a12008-08-19 20:50:28 -0700[diff] [blame]139typedef int vector_irq_t[NR_VECTORS];
140DECLARE_PER_CPU(vector_irq_t, vector_irq);
141
142#ifdef CONFIG_X86_IO_APIC
Eric W. Biedermand388e5f2008-08-09 15:09:02 -0700[diff] [blame]143extern void lock_vector_lock(void);
144extern void unlock_vector_lock(void);
145extern void __setup_vector_irq(int cpu);
146#else
147static inline void lock_vector_lock(void) {}
148static inline void unlock_vector_lock(void) {}
149static inline void __setup_vector_irq(int cpu) {}
150#endif
Thomas Gleixner2e088432008-05-02 19:00:30 +0200[diff] [blame]151
Thomas Gleixner22dc12d2008-05-02 22:10:39 +0200[diff] [blame]152#endif /* !ASSEMBLY_ */
153
H. Peter Anvin1965aae2008-10-22 22:26:29 -0700[diff] [blame]154#endif /* _ASM_X86_HW_IRQ_H */