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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 */ |
29 | extern void apic_timer_interrupt(void); | |
4a4de9c7 | 30 | extern void x86_platform_ipi(void); |
2e088436 | 31 | extern void error_interrupt(void); |
e360adbe | 32 | extern void irq_work_interrupt(void); |
241771ef | 33 | |
2e088436 TG |
34 | extern void spurious_interrupt(void); |
35 | extern void thermal_interrupt(void); | |
36 | extern void reschedule_interrupt(void); | |
ccc3c319 | 37 | extern void mce_self_interrupt(void); |
2e088436 TG |
38 | |
39 | extern void invalidate_interrupt(void); | |
40 | extern void invalidate_interrupt0(void); | |
41 | extern void invalidate_interrupt1(void); | |
42 | extern void invalidate_interrupt2(void); | |
43 | extern void invalidate_interrupt3(void); | |
44 | extern void invalidate_interrupt4(void); | |
45 | extern void invalidate_interrupt5(void); | |
46 | extern void invalidate_interrupt6(void); | |
47 | extern void invalidate_interrupt7(void); | |
3a09fb45 SL |
48 | extern void invalidate_interrupt8(void); |
49 | extern void invalidate_interrupt9(void); | |
50 | extern void invalidate_interrupt10(void); | |
51 | extern void invalidate_interrupt11(void); | |
52 | extern void invalidate_interrupt12(void); | |
53 | extern void invalidate_interrupt13(void); | |
54 | extern void invalidate_interrupt14(void); | |
55 | extern void invalidate_interrupt15(void); | |
56 | extern void invalidate_interrupt16(void); | |
57 | extern void invalidate_interrupt17(void); | |
58 | extern void invalidate_interrupt18(void); | |
59 | extern void invalidate_interrupt19(void); | |
60 | extern void invalidate_interrupt20(void); | |
61 | extern void invalidate_interrupt21(void); | |
62 | extern void invalidate_interrupt22(void); | |
63 | extern void invalidate_interrupt23(void); | |
64 | extern void invalidate_interrupt24(void); | |
65 | extern void invalidate_interrupt25(void); | |
66 | extern void invalidate_interrupt26(void); | |
67 | extern void invalidate_interrupt27(void); | |
68 | extern void invalidate_interrupt28(void); | |
69 | extern void invalidate_interrupt29(void); | |
70 | extern void invalidate_interrupt30(void); | |
71 | extern void invalidate_interrupt31(void); | |
2e088436 TG |
72 | |
73 | extern void irq_move_cleanup_interrupt(void); | |
4ef702c1 | 74 | extern void reboot_interrupt(void); |
2e088436 TG |
75 | extern void threshold_interrupt(void); |
76 | ||
77 | extern void call_function_interrupt(void); | |
1a781a77 | 78 | extern 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 |
82 | extern unsigned long io_apic_irqs; |
83 | ||
84 | extern void init_VISWS_APIC_irqs(void); | |
85 | extern void setup_IO_APIC(void); | |
86 | extern void disable_IO_APIC(void); | |
e5198075 YL |
87 | |
88 | struct io_apic_irq_attr { | |
89 | int ioapic; | |
90 | int ioapic_pin; | |
91 | int trigger; | |
92 | int polarity; | |
93 | }; | |
94 | ||
95 | static 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 |
105 | struct 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 | */ | |
117 | struct 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 |
128 | extern int assign_irq_vector(int, struct irq_cfg *, const struct cpumask *); |
129 | extern void send_cleanup_vector(struct irq_cfg *); | |
7ec13187 | 130 | |
f7e909ea TG |
131 | struct irq_data; |
132 | int __ioapic_set_affinity(struct irq_data *, const struct cpumask *, | |
133 | unsigned int *dest_id); | |
9338ad6f | 134 | extern int IO_APIC_get_PCI_irq_vector(int bus, int devfn, int pin, struct io_apic_irq_attr *irq_attr); |
2e088436 TG |
135 | extern void setup_ioapic_dest(void); |
136 | ||
97e7b6f5 | 137 | extern void enable_IO_APIC(void); |
97e7b6f5 | 138 | |
2e088436 TG |
139 | /* Statistics */ |
140 | extern atomic_t irq_err_count; | |
141 | extern atomic_t irq_mis_count; | |
142 | ||
1a331957 TG |
143 | /* EISA */ |
144 | extern void eisa_set_level_irq(unsigned int irq); | |
145 | ||
2b97df06 JS |
146 | /* SMP */ |
147 | extern void smp_apic_timer_interrupt(struct pt_regs *); | |
2b97df06 | 148 | extern void smp_spurious_interrupt(struct pt_regs *); |
4a4de9c7 | 149 | extern void smp_x86_platform_ipi(struct pt_regs *); |
2b97df06 | 150 | extern void smp_error_interrupt(struct pt_regs *); |
2c1b284e JSR |
151 | #ifdef CONFIG_X86_IO_APIC |
152 | extern asmlinkage void smp_irq_move_cleanup_interrupt(void); | |
153 | #endif | |
3e5095d1 | 154 | #ifdef CONFIG_SMP |
e7f08dfd JS |
155 | extern void smp_reschedule_interrupt(struct pt_regs *); |
156 | extern void smp_call_function_interrupt(struct pt_regs *); | |
157 | extern void smp_call_function_single_interrupt(struct pt_regs *); | |
b2139aa0 JS |
158 | #ifdef CONFIG_X86_32 |
159 | extern void smp_invalidate_interrupt(struct pt_regs *); | |
160 | #else | |
161 | extern asmlinkage void smp_invalidate_interrupt(struct pt_regs *); | |
162 | #endif | |
e7f08dfd | 163 | #endif |
2b97df06 | 164 | |
4687518c | 165 | extern void (*__initconst interrupt[NR_VECTORS-FIRST_EXTERNAL_VECTOR])(void); |
497c9a19 | 166 | |
22dc12d1 TG |
167 | typedef int vector_irq_t[NR_VECTORS]; |
168 | DECLARE_PER_CPU(vector_irq_t, vector_irq); | |
36e9e1ea | 169 | extern void setup_vector_irq(int cpu); |
d388e5fd | 170 | |
497c9a19 | 171 | #ifdef CONFIG_X86_IO_APIC |
d388e5fd EB |
172 | extern void lock_vector_lock(void); |
173 | extern void unlock_vector_lock(void); | |
174 | extern void __setup_vector_irq(int cpu); | |
175 | #else | |
176 | static inline void lock_vector_lock(void) {} | |
177 | static inline void unlock_vector_lock(void) {} | |
178 | static 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 */ |