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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); | |
f6b3c72c | 32 | extern asmlinkage void kvm_posted_intr_wakeup_ipi(void); |
1d9090e2 AK |
33 | extern asmlinkage void error_interrupt(void); |
34 | extern asmlinkage void irq_work_interrupt(void); | |
35 | ||
36 | extern asmlinkage void spurious_interrupt(void); | |
37 | extern asmlinkage void thermal_interrupt(void); | |
38 | extern asmlinkage void reschedule_interrupt(void); | |
39 | ||
1d9090e2 AK |
40 | extern asmlinkage void irq_move_cleanup_interrupt(void); |
41 | extern asmlinkage void reboot_interrupt(void); | |
42 | extern asmlinkage void threshold_interrupt(void); | |
24fd78a8 | 43 | extern asmlinkage void deferred_error_interrupt(void); |
1d9090e2 AK |
44 | |
45 | extern asmlinkage void call_function_interrupt(void); | |
46 | extern asmlinkage void call_function_single_interrupt(void); | |
2e088436 | 47 | |
cf910e83 SA |
48 | #ifdef CONFIG_TRACING |
49 | /* Interrupt handlers registered during init_IRQ */ | |
50 | extern void trace_apic_timer_interrupt(void); | |
51 | extern void trace_x86_platform_ipi(void); | |
52 | extern void trace_error_interrupt(void); | |
53 | extern void trace_irq_work_interrupt(void); | |
54 | extern void trace_spurious_interrupt(void); | |
55 | extern void trace_thermal_interrupt(void); | |
56 | extern void trace_reschedule_interrupt(void); | |
57 | extern void trace_threshold_interrupt(void); | |
24fd78a8 | 58 | extern void trace_deferred_error_interrupt(void); |
cf910e83 SA |
59 | extern void trace_call_function_interrupt(void); |
60 | extern void trace_call_function_single_interrupt(void); | |
61 | #define trace_irq_move_cleanup_interrupt irq_move_cleanup_interrupt | |
62 | #define trace_reboot_interrupt reboot_interrupt | |
63 | #define trace_kvm_posted_intr_ipi kvm_posted_intr_ipi | |
f6b3c72c | 64 | #define trace_kvm_posted_intr_wakeup_ipi kvm_posted_intr_wakeup_ipi |
cf910e83 SA |
65 | #endif /* CONFIG_TRACING */ |
66 | ||
26011eee | 67 | #ifdef CONFIG_X86_LOCAL_APIC |
74afab7a | 68 | struct irq_data; |
947045a2 JL |
69 | struct pci_dev; |
70 | struct msi_desc; | |
71 | ||
72 | enum irq_alloc_type { | |
73 | X86_IRQ_ALLOC_TYPE_IOAPIC = 1, | |
74 | X86_IRQ_ALLOC_TYPE_HPET, | |
75 | X86_IRQ_ALLOC_TYPE_MSI, | |
76 | X86_IRQ_ALLOC_TYPE_MSIX, | |
0921f1da | 77 | X86_IRQ_ALLOC_TYPE_DMAR, |
43fe1abc | 78 | X86_IRQ_ALLOC_TYPE_UV, |
947045a2 | 79 | }; |
b5dc8e6c JL |
80 | |
81 | struct irq_alloc_info { | |
947045a2 | 82 | enum irq_alloc_type type; |
b5dc8e6c JL |
83 | u32 flags; |
84 | const struct cpumask *mask; /* CPU mask for vector allocation */ | |
947045a2 JL |
85 | union { |
86 | int unused; | |
87 | #ifdef CONFIG_HPET_TIMER | |
88 | struct { | |
89 | int hpet_id; | |
90 | int hpet_index; | |
91 | void *hpet_data; | |
92 | }; | |
93 | #endif | |
94 | #ifdef CONFIG_PCI_MSI | |
95 | struct { | |
96 | struct pci_dev *msi_dev; | |
97 | irq_hw_number_t msi_hwirq; | |
98 | }; | |
99 | #endif | |
100 | #ifdef CONFIG_X86_IO_APIC | |
101 | struct { | |
102 | int ioapic_id; | |
103 | int ioapic_pin; | |
104 | int ioapic_node; | |
105 | u32 ioapic_trigger : 1; | |
106 | u32 ioapic_polarity : 1; | |
107 | u32 ioapic_valid : 1; | |
108 | struct IO_APIC_route_entry *ioapic_entry; | |
109 | }; | |
0921f1da JL |
110 | #endif |
111 | #ifdef CONFIG_DMAR_TABLE | |
112 | struct { | |
113 | int dmar_id; | |
114 | void *dmar_data; | |
115 | }; | |
49e07d8f JL |
116 | #endif |
117 | #ifdef CONFIG_HT_IRQ | |
118 | struct { | |
119 | int ht_pos; | |
120 | int ht_idx; | |
121 | struct pci_dev *ht_dev; | |
122 | void *ht_update; | |
123 | }; | |
43fe1abc JL |
124 | #endif |
125 | #ifdef CONFIG_X86_UV | |
126 | struct { | |
127 | int uv_limit; | |
128 | int uv_blade; | |
129 | unsigned long uv_offset; | |
130 | char *uv_name; | |
131 | }; | |
947045a2 JL |
132 | #endif |
133 | }; | |
b5dc8e6c JL |
134 | }; |
135 | ||
9338ad6f | 136 | struct irq_cfg { |
5f0052f9 | 137 | unsigned int dest_apicid; |
9338ad6f | 138 | u8 vector; |
9338ad6f DS |
139 | }; |
140 | ||
55a0e2b1 JL |
141 | extern struct irq_cfg *irq_cfg(unsigned int irq); |
142 | extern struct irq_cfg *irqd_cfg(struct irq_data *irq_data); | |
74afab7a JL |
143 | extern void lock_vector_lock(void); |
144 | extern void unlock_vector_lock(void); | |
74afab7a | 145 | extern void setup_vector_irq(int cpu); |
e32c67e0 | 146 | #ifdef CONFIG_SMP |
9338ad6f | 147 | extern void send_cleanup_vector(struct irq_cfg *); |
f0e5bf75 | 148 | extern void irq_complete_move(struct irq_cfg *cfg); |
e32c67e0 JL |
149 | #else |
150 | static inline void send_cleanup_vector(struct irq_cfg *c) { } | |
f0e5bf75 | 151 | static inline void irq_complete_move(struct irq_cfg *c) { } |
e32c67e0 | 152 | #endif |
7ec13187 | 153 | |
74afab7a | 154 | extern void apic_ack_edge(struct irq_data *data); |
74afab7a | 155 | #else /* CONFIG_X86_LOCAL_APIC */ |
26011eee JL |
156 | static inline void lock_vector_lock(void) {} |
157 | static inline void unlock_vector_lock(void) {} | |
74afab7a | 158 | #endif /* CONFIG_X86_LOCAL_APIC */ |
26011eee | 159 | |
2e088436 TG |
160 | /* Statistics */ |
161 | extern atomic_t irq_err_count; | |
162 | extern atomic_t irq_mis_count; | |
163 | ||
ea6cd250 | 164 | extern void elcr_set_level_irq(unsigned int irq); |
1a331957 | 165 | |
2b97df06 | 166 | /* SMP */ |
1d9090e2 AK |
167 | extern __visible void smp_apic_timer_interrupt(struct pt_regs *); |
168 | extern __visible void smp_spurious_interrupt(struct pt_regs *); | |
169 | extern __visible void smp_x86_platform_ipi(struct pt_regs *); | |
170 | extern __visible void smp_error_interrupt(struct pt_regs *); | |
2c1b284e JSR |
171 | #ifdef CONFIG_X86_IO_APIC |
172 | extern asmlinkage void smp_irq_move_cleanup_interrupt(void); | |
173 | #endif | |
3e5095d1 | 174 | #ifdef CONFIG_SMP |
1d9090e2 AK |
175 | extern __visible void smp_reschedule_interrupt(struct pt_regs *); |
176 | extern __visible void smp_call_function_interrupt(struct pt_regs *); | |
177 | extern __visible void smp_call_function_single_interrupt(struct pt_regs *); | |
e7f08dfd | 178 | #endif |
2b97df06 | 179 | |
3304c9c3 | 180 | extern char irq_entries_start[]; |
25c74b10 | 181 | #ifdef CONFIG_TRACING |
3304c9c3 | 182 | #define trace_irq_entries_start irq_entries_start |
25c74b10 | 183 | #endif |
497c9a19 | 184 | |
79a51b25 PB |
185 | #define VECTOR_UNDEFINED (-1) |
186 | #define VECTOR_RETRIGGERED (-2) | |
9345005f | 187 | |
22dc12d1 TG |
188 | typedef int vector_irq_t[NR_VECTORS]; |
189 | DECLARE_PER_CPU(vector_irq_t, vector_irq); | |
2e088436 | 190 | |
22dc12d1 TG |
191 | #endif /* !ASSEMBLY_ */ |
192 | ||
1965aae3 | 193 | #endif /* _ASM_X86_HW_IRQ_H */ |