1#ifndef _ASM_X86_HW_IRQ_H
2#define _ASM_X86_HW_IRQ_H
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15
16#include <asm/irq_vectors.h>
17
18#ifndef __ASSEMBLY__
19
20#include <linux/percpu.h>
21#include <linux/profile.h>
22#include <linux/smp.h>
23
24#include <linux/atomic.h>
25#include <asm/irq.h>
26#include <asm/sections.h>
27
28
29extern void apic_timer_interrupt(void);
30extern void x86_platform_ipi(void);
31extern void kvm_posted_intr_ipi(void);
32extern void error_interrupt(void);
33extern void irq_work_interrupt(void);
34
35extern void spurious_interrupt(void);
36extern void thermal_interrupt(void);
37extern void reschedule_interrupt(void);
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);
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);
72
73extern void irq_move_cleanup_interrupt(void);
74extern void reboot_interrupt(void);
75extern void threshold_interrupt(void);
76
77extern void call_function_interrupt(void);
78extern void call_function_single_interrupt(void);
79
80
81#define IO_APIC_IRQ(x) (((x) >= NR_IRQS_LEGACY) || ((1<<(x)) & io_apic_irqs))
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);
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{
99 irq_attr->ioapic = ioapic;
100 irq_attr->ioapic_pin = ioapic_pin;
101 irq_attr->trigger = trigger;
102 irq_attr->polarity = polarity;
103}
104
105
106struct irq_2_iommu {
107 struct intel_iommu *iommu;
108 u16 irte_index;
109 u16 sub_handle;
110 u8 irte_mask;
111};
112
113
114struct irq_2_irte {
115 u16 devid;
116 u16 index;
117};
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123
124struct irq_cfg {
125 struct irq_pin_list *irq_2_pin;
126 cpumask_var_t domain;
127 cpumask_var_t old_domain;
128 u8 vector;
129 u8 move_in_progress : 1;
130#ifdef CONFIG_IRQ_REMAP
131 u8 remapped : 1;
132 union {
133 struct irq_2_iommu irq_2_iommu;
134 struct irq_2_irte irq_2_irte;
135 };
136#endif
137};
138
139extern int assign_irq_vector(int, struct irq_cfg *, const struct cpumask *);
140extern void send_cleanup_vector(struct irq_cfg *);
141
142struct irq_data;
143int __ioapic_set_affinity(struct irq_data *, const struct cpumask *,
144 unsigned int *dest_id);
145extern int IO_APIC_get_PCI_irq_vector(int bus, int devfn, int pin, struct io_apic_irq_attr *irq_attr);
146extern void setup_ioapic_dest(void);
147
148extern void enable_IO_APIC(void);
149
150
151extern atomic_t irq_err_count;
152extern atomic_t irq_mis_count;
153
154
155extern void eisa_set_level_irq(unsigned int irq);
156
157
158extern void smp_apic_timer_interrupt(struct pt_regs *);
159extern void smp_spurious_interrupt(struct pt_regs *);
160extern void smp_x86_platform_ipi(struct pt_regs *);
161extern void smp_error_interrupt(struct pt_regs *);
162#ifdef CONFIG_X86_IO_APIC
163extern asmlinkage void smp_irq_move_cleanup_interrupt(void);
164#endif
165#ifdef CONFIG_SMP
166extern void smp_reschedule_interrupt(struct pt_regs *);
167extern void smp_call_function_interrupt(struct pt_regs *);
168extern void smp_call_function_single_interrupt(struct pt_regs *);
169#ifdef CONFIG_X86_32
170extern void smp_invalidate_interrupt(struct pt_regs *);
171#else
172extern asmlinkage void smp_invalidate_interrupt(struct pt_regs *);
173#endif
174#endif
175
176extern void (*__initconst interrupt[NR_VECTORS-FIRST_EXTERNAL_VECTOR])(void);
177
178typedef int vector_irq_t[NR_VECTORS];
179DECLARE_PER_CPU(vector_irq_t, vector_irq);
180extern void setup_vector_irq(int cpu);
181
182#ifdef CONFIG_X86_IO_APIC
183extern void lock_vector_lock(void);
184extern void unlock_vector_lock(void);
185extern void __setup_vector_irq(int cpu);
186#else
187static inline void lock_vector_lock(void) {}
188static inline void unlock_vector_lock(void) {}
189static inline void __setup_vector_irq(int cpu) {}
190#endif
191
192#endif
193
194#endif
195
