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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 | ||
2e088436 | 97 | /* IOAPIC */ |
abcaa2b8 | 98 | #define IO_APIC_IRQ(x) (((x) >= NR_IRQS_LEGACY) || ((1<<(x)) & io_apic_irqs)) |
2e088436 TG |
99 | extern unsigned long io_apic_irqs; |
100 | ||
2e088436 TG |
101 | extern void setup_IO_APIC(void); |
102 | extern void disable_IO_APIC(void); | |
e5198075 YL |
103 | |
104 | struct io_apic_irq_attr { | |
105 | int ioapic; | |
106 | int ioapic_pin; | |
107 | int trigger; | |
108 | int polarity; | |
109 | }; | |
110 | ||
111 | static inline void set_io_apic_irq_attr(struct io_apic_irq_attr *irq_attr, | |
112 | int ioapic, int ioapic_pin, | |
113 | int trigger, int polarity) | |
114 | { | |
9338ad6f DS |
115 | irq_attr->ioapic = ioapic; |
116 | irq_attr->ioapic_pin = ioapic_pin; | |
117 | irq_attr->trigger = trigger; | |
118 | irq_attr->polarity = polarity; | |
e5198075 YL |
119 | } |
120 | ||
819508d3 | 121 | /* Intel specific interrupt remapping information */ |
423f0859 TG |
122 | struct irq_2_iommu { |
123 | struct intel_iommu *iommu; | |
124 | u16 irte_index; | |
125 | u16 sub_handle; | |
126 | u8 irte_mask; | |
127 | }; | |
128 | ||
819508d3 JR |
129 | /* AMD specific interrupt remapping information */ |
130 | struct irq_2_irte { | |
131 | u16 devid; /* Device ID for IRTE table */ | |
132 | u16 index; /* Index into IRTE table*/ | |
133 | }; | |
134 | ||
9338ad6f DS |
135 | /* |
136 | * This is performance-critical, we want to do it O(1) | |
137 | * | |
138 | * Most irqs are mapped 1:1 with pins. | |
139 | */ | |
140 | struct irq_cfg { | |
141 | struct irq_pin_list *irq_2_pin; | |
142 | cpumask_var_t domain; | |
143 | cpumask_var_t old_domain; | |
9338ad6f DS |
144 | u8 vector; |
145 | u8 move_in_progress : 1; | |
d3f13810 | 146 | #ifdef CONFIG_IRQ_REMAP |
9b1b0e42 | 147 | u8 remapped : 1; |
819508d3 JR |
148 | union { |
149 | struct irq_2_iommu irq_2_iommu; | |
150 | struct irq_2_irte irq_2_irte; | |
151 | }; | |
423f0859 | 152 | #endif |
9338ad6f DS |
153 | }; |
154 | ||
9338ad6f DS |
155 | extern int assign_irq_vector(int, struct irq_cfg *, const struct cpumask *); |
156 | extern void send_cleanup_vector(struct irq_cfg *); | |
7ec13187 | 157 | |
f7e909ea TG |
158 | struct irq_data; |
159 | int __ioapic_set_affinity(struct irq_data *, const struct cpumask *, | |
160 | unsigned int *dest_id); | |
9338ad6f | 161 | extern int IO_APIC_get_PCI_irq_vector(int bus, int devfn, int pin, struct io_apic_irq_attr *irq_attr); |
2e088436 TG |
162 | extern void setup_ioapic_dest(void); |
163 | ||
97e7b6f5 | 164 | extern void enable_IO_APIC(void); |
97e7b6f5 | 165 | |
2e088436 TG |
166 | /* Statistics */ |
167 | extern atomic_t irq_err_count; | |
168 | extern atomic_t irq_mis_count; | |
169 | ||
1a331957 TG |
170 | /* EISA */ |
171 | extern void eisa_set_level_irq(unsigned int irq); | |
172 | ||
2b97df06 | 173 | /* SMP */ |
1d9090e2 AK |
174 | extern __visible void smp_apic_timer_interrupt(struct pt_regs *); |
175 | extern __visible void smp_spurious_interrupt(struct pt_regs *); | |
176 | extern __visible void smp_x86_platform_ipi(struct pt_regs *); | |
177 | extern __visible void smp_error_interrupt(struct pt_regs *); | |
2c1b284e JSR |
178 | #ifdef CONFIG_X86_IO_APIC |
179 | extern asmlinkage void smp_irq_move_cleanup_interrupt(void); | |
180 | #endif | |
3e5095d1 | 181 | #ifdef CONFIG_SMP |
1d9090e2 AK |
182 | extern __visible void smp_reschedule_interrupt(struct pt_regs *); |
183 | extern __visible void smp_call_function_interrupt(struct pt_regs *); | |
184 | extern __visible void smp_call_function_single_interrupt(struct pt_regs *); | |
185 | extern __visible void smp_invalidate_interrupt(struct pt_regs *); | |
e7f08dfd | 186 | #endif |
2b97df06 | 187 | |
4687518c | 188 | extern void (*__initconst interrupt[NR_VECTORS-FIRST_EXTERNAL_VECTOR])(void); |
25c74b10 SA |
189 | #ifdef CONFIG_TRACING |
190 | #define trace_interrupt interrupt | |
191 | #endif | |
497c9a19 | 192 | |
79a51b25 PB |
193 | #define VECTOR_UNDEFINED (-1) |
194 | #define VECTOR_RETRIGGERED (-2) | |
9345005f | 195 | |
22dc12d1 TG |
196 | typedef int vector_irq_t[NR_VECTORS]; |
197 | DECLARE_PER_CPU(vector_irq_t, vector_irq); | |
36e9e1ea | 198 | extern void setup_vector_irq(int cpu); |
d388e5fd | 199 | |
497c9a19 | 200 | #ifdef CONFIG_X86_IO_APIC |
d388e5fd EB |
201 | extern void lock_vector_lock(void); |
202 | extern void unlock_vector_lock(void); | |
203 | extern void __setup_vector_irq(int cpu); | |
204 | #else | |
205 | static inline void lock_vector_lock(void) {} | |
206 | static inline void unlock_vector_lock(void) {} | |
207 | static inline void __setup_vector_irq(int cpu) {} | |
208 | #endif | |
2e088436 | 209 | |
22dc12d1 TG |
210 | #endif /* !ASSEMBLY_ */ |
211 | ||
1965aae3 | 212 | #endif /* _ASM_X86_HW_IRQ_H */ |