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Commit | Line | Data |
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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 | ||
60063497 | 24 | #include <linux/atomic.h> |
2e088436 TG |
25 | #include <asm/irq.h> |
26 | #include <asm/sections.h> | |
27 | ||
2e088436 | 28 | /* Interrupt handlers registered during init_IRQ */ |
1d9090e2 AK |
29 | extern asmlinkage void apic_timer_interrupt(void); |
30 | extern asmlinkage void x86_platform_ipi(void); | |
31 | extern asmlinkage void kvm_posted_intr_ipi(void); | |
32 | extern asmlinkage void error_interrupt(void); | |
33 | extern asmlinkage void irq_work_interrupt(void); | |
34 | ||
35 | extern asmlinkage void spurious_interrupt(void); | |
36 | extern asmlinkage void thermal_interrupt(void); | |
37 | extern asmlinkage void reschedule_interrupt(void); | |
38 | ||
39 | extern asmlinkage void invalidate_interrupt(void); | |
40 | extern asmlinkage void invalidate_interrupt0(void); | |
41 | extern asmlinkage void invalidate_interrupt1(void); | |
42 | extern asmlinkage void invalidate_interrupt2(void); | |
43 | extern asmlinkage void invalidate_interrupt3(void); | |
44 | extern asmlinkage void invalidate_interrupt4(void); | |
45 | extern asmlinkage void invalidate_interrupt5(void); | |
46 | extern asmlinkage void invalidate_interrupt6(void); | |
47 | extern asmlinkage void invalidate_interrupt7(void); | |
48 | extern asmlinkage void invalidate_interrupt8(void); | |
49 | extern asmlinkage void invalidate_interrupt9(void); | |
50 | extern asmlinkage void invalidate_interrupt10(void); | |
51 | extern asmlinkage void invalidate_interrupt11(void); | |
52 | extern asmlinkage void invalidate_interrupt12(void); | |
53 | extern asmlinkage void invalidate_interrupt13(void); | |
54 | extern asmlinkage void invalidate_interrupt14(void); | |
55 | extern asmlinkage void invalidate_interrupt15(void); | |
56 | extern asmlinkage void invalidate_interrupt16(void); | |
57 | extern asmlinkage void invalidate_interrupt17(void); | |
58 | extern asmlinkage void invalidate_interrupt18(void); | |
59 | extern asmlinkage void invalidate_interrupt19(void); | |
60 | extern asmlinkage void invalidate_interrupt20(void); | |
61 | extern asmlinkage void invalidate_interrupt21(void); | |
62 | extern asmlinkage void invalidate_interrupt22(void); | |
63 | extern asmlinkage void invalidate_interrupt23(void); | |
64 | extern asmlinkage void invalidate_interrupt24(void); | |
65 | extern asmlinkage void invalidate_interrupt25(void); | |
66 | extern asmlinkage void invalidate_interrupt26(void); | |
67 | extern asmlinkage void invalidate_interrupt27(void); | |
68 | extern asmlinkage void invalidate_interrupt28(void); | |
69 | extern asmlinkage void invalidate_interrupt29(void); | |
70 | extern asmlinkage void invalidate_interrupt30(void); | |
71 | extern asmlinkage void invalidate_interrupt31(void); | |
72 | ||
73 | extern asmlinkage void irq_move_cleanup_interrupt(void); | |
74 | extern asmlinkage void reboot_interrupt(void); | |
75 | extern asmlinkage void threshold_interrupt(void); | |
76 | ||
77 | extern asmlinkage void call_function_interrupt(void); | |
78 | extern asmlinkage void call_function_single_interrupt(void); | |
2e088436 | 79 | |
cf910e83 SA |
80 | #ifdef CONFIG_TRACING |
81 | /* Interrupt handlers registered during init_IRQ */ | |
82 | extern void trace_apic_timer_interrupt(void); | |
83 | extern void trace_x86_platform_ipi(void); | |
84 | extern void trace_error_interrupt(void); | |
85 | extern void trace_irq_work_interrupt(void); | |
86 | extern void trace_spurious_interrupt(void); | |
87 | extern void trace_thermal_interrupt(void); | |
88 | extern void trace_reschedule_interrupt(void); | |
89 | extern void trace_threshold_interrupt(void); | |
90 | extern void trace_call_function_interrupt(void); | |
91 | extern void trace_call_function_single_interrupt(void); | |
92 | #define trace_irq_move_cleanup_interrupt irq_move_cleanup_interrupt | |
93 | #define trace_reboot_interrupt reboot_interrupt | |
94 | #define trace_kvm_posted_intr_ipi kvm_posted_intr_ipi | |
95 | #endif /* CONFIG_TRACING */ | |
96 | ||
26011eee | 97 | #ifdef CONFIG_IRQ_REMAP |
819508d3 | 98 | /* Intel specific interrupt remapping information */ |
423f0859 TG |
99 | struct irq_2_iommu { |
100 | struct intel_iommu *iommu; | |
101 | u16 irte_index; | |
102 | u16 sub_handle; | |
103 | u8 irte_mask; | |
104 | }; | |
105 | ||
819508d3 JR |
106 | /* AMD specific interrupt remapping information */ |
107 | struct irq_2_irte { | |
108 | u16 devid; /* Device ID for IRTE table */ | |
109 | u16 index; /* Index into IRTE table*/ | |
110 | }; | |
26011eee | 111 | #endif /* CONFIG_IRQ_REMAP */ |
819508d3 | 112 | |
26011eee | 113 | #ifdef CONFIG_X86_LOCAL_APIC |
9338ad6f | 114 | struct irq_cfg { |
9338ad6f DS |
115 | cpumask_var_t domain; |
116 | cpumask_var_t old_domain; | |
9338ad6f DS |
117 | u8 vector; |
118 | u8 move_in_progress : 1; | |
d3f13810 | 119 | #ifdef CONFIG_IRQ_REMAP |
9b1b0e42 | 120 | u8 remapped : 1; |
819508d3 JR |
121 | union { |
122 | struct irq_2_iommu irq_2_iommu; | |
123 | struct irq_2_irte irq_2_irte; | |
124 | }; | |
423f0859 | 125 | #endif |
26011eee JL |
126 | union { |
127 | #ifdef CONFIG_X86_IO_APIC | |
128 | struct { | |
129 | struct list_head irq_2_pin; | |
130 | }; | |
131 | #endif | |
132 | }; | |
9338ad6f DS |
133 | }; |
134 | ||
55a0e2b1 JL |
135 | extern struct irq_cfg *irq_cfg(unsigned int irq); |
136 | extern struct irq_cfg *irqd_cfg(struct irq_data *irq_data); | |
26011eee | 137 | extern void setup_vector_irq(int cpu); |
9338ad6f | 138 | extern int assign_irq_vector(int, struct irq_cfg *, const struct cpumask *); |
e32c67e0 | 139 | #ifdef CONFIG_SMP |
9338ad6f | 140 | extern void send_cleanup_vector(struct irq_cfg *); |
e32c67e0 JL |
141 | #else |
142 | static inline void send_cleanup_vector(struct irq_cfg *c) { } | |
143 | #endif | |
7ec13187 | 144 | |
f7e909ea | 145 | struct irq_data; |
cb39288c JL |
146 | int apic_set_affinity(struct irq_data *, const struct cpumask *, |
147 | unsigned int *dest_id); | |
26011eee JL |
148 | #endif /* CONFIG_X86_LOCAL_APIC */ |
149 | ||
150 | #ifdef CONFIG_X86_IO_APIC | |
151 | extern void lock_vector_lock(void); | |
152 | extern void unlock_vector_lock(void); | |
153 | extern void __setup_vector_irq(int cpu); | |
154 | #else | |
155 | static inline void lock_vector_lock(void) {} | |
156 | static inline void unlock_vector_lock(void) {} | |
157 | static inline void __setup_vector_irq(int cpu) {} | |
158 | #endif | |
159 | ||
160 | /* IOAPIC */ | |
161 | #ifdef CONFIG_X86_IO_APIC | |
162 | struct io_apic_irq_attr { | |
163 | int ioapic; | |
164 | int ioapic_pin; | |
165 | int trigger; | |
166 | int polarity; | |
167 | }; | |
168 | ||
169 | static inline void set_io_apic_irq_attr(struct io_apic_irq_attr *irq_attr, | |
170 | int ioapic, int ioapic_pin, | |
171 | int trigger, int polarity) | |
172 | { | |
173 | irq_attr->ioapic = ioapic; | |
174 | irq_attr->ioapic_pin = ioapic_pin; | |
175 | irq_attr->trigger = trigger; | |
176 | irq_attr->polarity = polarity; | |
177 | } | |
2e088436 | 178 | |
26011eee | 179 | extern void setup_IO_APIC(void); |
97e7b6f5 | 180 | extern void enable_IO_APIC(void); |
26011eee JL |
181 | extern void disable_IO_APIC(void); |
182 | extern void setup_ioapic_dest(void); | |
183 | extern int IO_APIC_get_PCI_irq_vector(int bus, int devfn, int pin); | |
184 | ||
185 | extern unsigned long io_apic_irqs; | |
186 | #define IO_APIC_IRQ(x) (((x) >= NR_IRQS_LEGACY) || ((1 << (x)) & io_apic_irqs)) | |
187 | #else /* CONFIG_X86_IO_APIC */ | |
188 | #define IO_APIC_IRQ(x) 0 | |
189 | #endif /* CONFIG_X86_IO_APIC */ | |
97e7b6f5 | 190 | |
2e088436 TG |
191 | /* Statistics */ |
192 | extern atomic_t irq_err_count; | |
193 | extern atomic_t irq_mis_count; | |
194 | ||
1a331957 TG |
195 | /* EISA */ |
196 | extern void eisa_set_level_irq(unsigned int irq); | |
197 | ||
2b97df06 | 198 | /* SMP */ |
1d9090e2 AK |
199 | extern __visible void smp_apic_timer_interrupt(struct pt_regs *); |
200 | extern __visible void smp_spurious_interrupt(struct pt_regs *); | |
201 | extern __visible void smp_x86_platform_ipi(struct pt_regs *); | |
202 | extern __visible void smp_error_interrupt(struct pt_regs *); | |
2c1b284e JSR |
203 | #ifdef CONFIG_X86_IO_APIC |
204 | extern asmlinkage void smp_irq_move_cleanup_interrupt(void); | |
205 | #endif | |
3e5095d1 | 206 | #ifdef CONFIG_SMP |
1d9090e2 AK |
207 | extern __visible void smp_reschedule_interrupt(struct pt_regs *); |
208 | extern __visible void smp_call_function_interrupt(struct pt_regs *); | |
209 | extern __visible void smp_call_function_single_interrupt(struct pt_regs *); | |
210 | extern __visible void smp_invalidate_interrupt(struct pt_regs *); | |
e7f08dfd | 211 | #endif |
2b97df06 | 212 | |
2414e021 JB |
213 | extern void (*__initconst interrupt[FIRST_SYSTEM_VECTOR |
214 | - FIRST_EXTERNAL_VECTOR])(void); | |
25c74b10 SA |
215 | #ifdef CONFIG_TRACING |
216 | #define trace_interrupt interrupt | |
217 | #endif | |
497c9a19 | 218 | |
79a51b25 PB |
219 | #define VECTOR_UNDEFINED (-1) |
220 | #define VECTOR_RETRIGGERED (-2) | |
9345005f | 221 | |
22dc12d1 TG |
222 | typedef int vector_irq_t[NR_VECTORS]; |
223 | DECLARE_PER_CPU(vector_irq_t, vector_irq); | |
2e088436 | 224 | |
22dc12d1 TG |
225 | #endif /* !ASSEMBLY_ */ |
226 | ||
1965aae3 | 227 | #endif /* _ASM_X86_HW_IRQ_H */ |