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Merge branches 'fixes', 'pgt-next' and 'versatile' into devel
[deliverable/linux.git] / arch / x86 / include / asm / hw_irq.h
CommitLineData
1965aae3
PA		 1#ifndef _ASM_X86_HW_IRQ_H
2#define _ASM_X86_HW_IRQ_H
2e088436
TG		 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
9b7dc567 16#include <asm/irq_vectors.h>
2e088436
TG		 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
2e088436
TG		 28/* Interrupt handlers registered during init_IRQ */
29extern void apic_timer_interrupt(void);
4a4de9c7 30extern void x86_platform_ipi(void);
2e088436 31extern void error_interrupt(void);
e360adbe 32extern void irq_work_interrupt(void);
241771ef 33
2e088436
TG		 34extern void spurious_interrupt(void);
35extern void thermal_interrupt(void);
36extern void reschedule_interrupt(void);
ccc3c319 37extern void mce_self_interrupt(void);
2e088436
TG		 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);
3a09fb45
SL		 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);
2e088436
TG		 72
73extern void irq_move_cleanup_interrupt(void);
4ef702c1 74extern void reboot_interrupt(void);
2e088436
TG		 75extern void threshold_interrupt(void);
76
77extern void call_function_interrupt(void);
1a781a77 78extern void call_function_single_interrupt(void);
2e088436 79
2e088436 80/* IOAPIC */
abcaa2b8 81#define IO_APIC_IRQ(x) (((x) >= NR_IRQS_LEGACY) || ((1<<(x)) & io_apic_irqs))
2e088436
TG		 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);
e5198075
YL		 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{
9338ad6f
DS		 99 irq_attr->ioapic = ioapic;
100 irq_attr->ioapic_pin = ioapic_pin;
101 irq_attr->trigger = trigger;
102 irq_attr->polarity = polarity;
e5198075
YL		 103}
104
423f0859
TG		 105struct irq_2_iommu {
106 struct intel_iommu *iommu;
107 u16 irte_index;
108 u16 sub_handle;
109 u8 irte_mask;
110};
111
9338ad6f
DS		 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;
9338ad6f
DS		 121 u8 vector;
122 u8 move_in_progress : 1;
423f0859
TG		 123#ifdef CONFIG_INTR_REMAP
124 struct irq_2_iommu irq_2_iommu;
125#endif
9338ad6f
DS		 126};
127
9338ad6f
DS		 128extern int assign_irq_vector(int, struct irq_cfg *, const struct cpumask *);
129extern void send_cleanup_vector(struct irq_cfg *);
7ec13187 130
f7e909ea
TG		 131struct irq_data;
132int __ioapic_set_affinity(struct irq_data *, const struct cpumask *,
133 unsigned int *dest_id);
9338ad6f 134extern int IO_APIC_get_PCI_irq_vector(int bus, int devfn, int pin, struct io_apic_irq_attr *irq_attr);
2e088436
TG		 135extern void setup_ioapic_dest(void);
136
97e7b6f5 137extern void enable_IO_APIC(void);
97e7b6f5 138
2e088436
TG		 139/* Statistics */
140extern atomic_t irq_err_count;
141extern atomic_t irq_mis_count;
142
1a331957
TG		 143/* EISA */
144extern void eisa_set_level_irq(unsigned int irq);
145
2b97df06
JS		 146/* SMP */
147extern void smp_apic_timer_interrupt(struct pt_regs *);
2b97df06 148extern void smp_spurious_interrupt(struct pt_regs *);
4a4de9c7 149extern void smp_x86_platform_ipi(struct pt_regs *);
2b97df06 150extern void smp_error_interrupt(struct pt_regs *);
2c1b284e
JSR		 151#ifdef CONFIG_X86_IO_APIC
152extern asmlinkage void smp_irq_move_cleanup_interrupt(void);
153#endif
3e5095d1 154#ifdef CONFIG_SMP
e7f08dfd
JS		 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 *);
b2139aa0
JS		 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
e7f08dfd 163#endif
2b97df06 164
4687518c 165extern void (*__initconst interrupt[NR_VECTORS-FIRST_EXTERNAL_VECTOR])(void);
497c9a19 166
22dc12d1
TG		 167typedef int vector_irq_t[NR_VECTORS];
168DECLARE_PER_CPU(vector_irq_t, vector_irq);
36e9e1ea 169extern void setup_vector_irq(int cpu);
d388e5fd 170
497c9a19 171#ifdef CONFIG_X86_IO_APIC
d388e5fd
EB		 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
2e088436 180
22dc12d1
TG		 181#endif /* !ASSEMBLY_ */
182
1965aae3 183#endif /* _ASM_X86_HW_IRQ_H */
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