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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
1965aae3 PA |
2 | #ifndef _ASM_X86_HW_IRQ_H |
3 | #define _ASM_X86_HW_IRQ_H | |
2e088436 TG |
4 | |
5 | /* | |
6 | * (C) 1992, 1993 Linus Torvalds, (C) 1997 Ingo Molnar | |
7 | * | |
8 | * moved some of the old arch/i386/kernel/irq.h to here. VY | |
9 | * | |
10 | * IRQ/IPI changes taken from work by Thomas Radke | |
11 | * <tomsoft@informatik.tu-chemnitz.de> | |
12 | * | |
13 | * hacked by Andi Kleen for x86-64. | |
14 | * unified by tglx | |
15 | */ | |
16 | ||
9b7dc567 | 17 | #include <asm/irq_vectors.h> |
2e088436 TG |
18 | |
19 | #ifndef __ASSEMBLY__ | |
20 | ||
21 | #include <linux/percpu.h> | |
22 | #include <linux/profile.h> | |
23 | #include <linux/smp.h> | |
24 | ||
60063497 | 25 | #include <linux/atomic.h> |
2e088436 TG |
26 | #include <asm/irq.h> |
27 | #include <asm/sections.h> | |
28 | ||
2e088436 | 29 | /* Interrupt handlers registered during init_IRQ */ |
1d9090e2 AK |
30 | extern asmlinkage void apic_timer_interrupt(void); |
31 | extern asmlinkage void x86_platform_ipi(void); | |
32 | extern asmlinkage void kvm_posted_intr_ipi(void); | |
f6b3c72c | 33 | extern asmlinkage void kvm_posted_intr_wakeup_ipi(void); |
210f84b0 | 34 | extern asmlinkage void kvm_posted_intr_nested_ipi(void); |
1d9090e2 AK |
35 | extern asmlinkage void error_interrupt(void); |
36 | extern asmlinkage void irq_work_interrupt(void); | |
37 | ||
38 | extern asmlinkage void spurious_interrupt(void); | |
39 | extern asmlinkage void thermal_interrupt(void); | |
40 | extern asmlinkage void reschedule_interrupt(void); | |
41 | ||
1d9090e2 AK |
42 | extern asmlinkage void irq_move_cleanup_interrupt(void); |
43 | extern asmlinkage void reboot_interrupt(void); | |
44 | extern asmlinkage void threshold_interrupt(void); | |
24fd78a8 | 45 | extern asmlinkage void deferred_error_interrupt(void); |
1d9090e2 AK |
46 | |
47 | extern asmlinkage void call_function_interrupt(void); | |
48 | extern asmlinkage void call_function_single_interrupt(void); | |
2e088436 | 49 | |
26011eee | 50 | #ifdef CONFIG_X86_LOCAL_APIC |
74afab7a | 51 | struct irq_data; |
947045a2 JL |
52 | struct pci_dev; |
53 | struct msi_desc; | |
54 | ||
55 | enum irq_alloc_type { | |
56 | X86_IRQ_ALLOC_TYPE_IOAPIC = 1, | |
57 | X86_IRQ_ALLOC_TYPE_HPET, | |
58 | X86_IRQ_ALLOC_TYPE_MSI, | |
59 | X86_IRQ_ALLOC_TYPE_MSIX, | |
0921f1da | 60 | X86_IRQ_ALLOC_TYPE_DMAR, |
43fe1abc | 61 | X86_IRQ_ALLOC_TYPE_UV, |
947045a2 | 62 | }; |
b5dc8e6c JL |
63 | |
64 | struct irq_alloc_info { | |
947045a2 | 65 | enum irq_alloc_type type; |
b5dc8e6c JL |
66 | u32 flags; |
67 | const struct cpumask *mask; /* CPU mask for vector allocation */ | |
947045a2 JL |
68 | union { |
69 | int unused; | |
70 | #ifdef CONFIG_HPET_TIMER | |
71 | struct { | |
72 | int hpet_id; | |
73 | int hpet_index; | |
74 | void *hpet_data; | |
75 | }; | |
76 | #endif | |
77 | #ifdef CONFIG_PCI_MSI | |
78 | struct { | |
79 | struct pci_dev *msi_dev; | |
80 | irq_hw_number_t msi_hwirq; | |
81 | }; | |
82 | #endif | |
83 | #ifdef CONFIG_X86_IO_APIC | |
84 | struct { | |
85 | int ioapic_id; | |
86 | int ioapic_pin; | |
87 | int ioapic_node; | |
88 | u32 ioapic_trigger : 1; | |
89 | u32 ioapic_polarity : 1; | |
90 | u32 ioapic_valid : 1; | |
91 | struct IO_APIC_route_entry *ioapic_entry; | |
92 | }; | |
0921f1da JL |
93 | #endif |
94 | #ifdef CONFIG_DMAR_TABLE | |
95 | struct { | |
96 | int dmar_id; | |
97 | void *dmar_data; | |
98 | }; | |
49e07d8f JL |
99 | #endif |
100 | #ifdef CONFIG_HT_IRQ | |
101 | struct { | |
102 | int ht_pos; | |
103 | int ht_idx; | |
104 | struct pci_dev *ht_dev; | |
105 | void *ht_update; | |
106 | }; | |
43fe1abc JL |
107 | #endif |
108 | #ifdef CONFIG_X86_UV | |
109 | struct { | |
110 | int uv_limit; | |
111 | int uv_blade; | |
112 | unsigned long uv_offset; | |
113 | char *uv_name; | |
114 | }; | |
185a383a KB |
115 | #endif |
116 | #if IS_ENABLED(CONFIG_VMD) | |
117 | struct { | |
118 | struct msi_desc *desc; | |
119 | }; | |
947045a2 JL |
120 | #endif |
121 | }; | |
b5dc8e6c JL |
122 | }; |
123 | ||
9338ad6f | 124 | struct irq_cfg { |
5f0052f9 | 125 | unsigned int dest_apicid; |
9338ad6f | 126 | u8 vector; |
551adc60 | 127 | u8 old_vector; |
9338ad6f DS |
128 | }; |
129 | ||
55a0e2b1 JL |
130 | extern struct irq_cfg *irq_cfg(unsigned int irq); |
131 | extern struct irq_cfg *irqd_cfg(struct irq_data *irq_data); | |
74afab7a JL |
132 | extern void lock_vector_lock(void); |
133 | extern void unlock_vector_lock(void); | |
74afab7a | 134 | extern void setup_vector_irq(int cpu); |
e32c67e0 | 135 | #ifdef CONFIG_SMP |
9338ad6f | 136 | extern void send_cleanup_vector(struct irq_cfg *); |
f0e5bf75 | 137 | extern void irq_complete_move(struct irq_cfg *cfg); |
e32c67e0 JL |
138 | #else |
139 | static inline void send_cleanup_vector(struct irq_cfg *c) { } | |
f0e5bf75 | 140 | static inline void irq_complete_move(struct irq_cfg *c) { } |
e32c67e0 | 141 | #endif |
7ec13187 | 142 | |
74afab7a | 143 | extern void apic_ack_edge(struct irq_data *data); |
74afab7a | 144 | #else /* CONFIG_X86_LOCAL_APIC */ |
26011eee JL |
145 | static inline void lock_vector_lock(void) {} |
146 | static inline void unlock_vector_lock(void) {} | |
74afab7a | 147 | #endif /* CONFIG_X86_LOCAL_APIC */ |
26011eee | 148 | |
2e088436 TG |
149 | /* Statistics */ |
150 | extern atomic_t irq_err_count; | |
151 | extern atomic_t irq_mis_count; | |
152 | ||
ea6cd250 | 153 | extern void elcr_set_level_irq(unsigned int irq); |
1a331957 | 154 | |
3304c9c3 | 155 | extern char irq_entries_start[]; |
25c74b10 | 156 | #ifdef CONFIG_TRACING |
3304c9c3 | 157 | #define trace_irq_entries_start irq_entries_start |
25c74b10 | 158 | #endif |
497c9a19 | 159 | |
a782a7e4 TG |
160 | #define VECTOR_UNUSED NULL |
161 | #define VECTOR_RETRIGGERED ((void *)~0UL) | |
9345005f | 162 | |
a782a7e4 | 163 | typedef struct irq_desc* vector_irq_t[NR_VECTORS]; |
22dc12d1 | 164 | DECLARE_PER_CPU(vector_irq_t, vector_irq); |
2e088436 | 165 | |
22dc12d1 TG |
166 | #endif /* !ASSEMBLY_ */ |
167 | ||
1965aae3 | 168 | #endif /* _ASM_X86_HW_IRQ_H */ |