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x86, irq: Protect __clear_irq_vector() with vector_lock
[mirror_ubuntu-jammy-kernel.git] / arch / x86 / include / asm / hw_irq.h
CommitLineData
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		 29extern asmlinkage void apic_timer_interrupt(void);
30extern asmlinkage void x86_platform_ipi(void);
31extern asmlinkage void kvm_posted_intr_ipi(void);
32extern asmlinkage void error_interrupt(void);
33extern asmlinkage void irq_work_interrupt(void);
34
35extern asmlinkage void spurious_interrupt(void);
36extern asmlinkage void thermal_interrupt(void);
37extern asmlinkage void reschedule_interrupt(void);
38
39extern asmlinkage void invalidate_interrupt(void);
40extern asmlinkage void invalidate_interrupt0(void);
41extern asmlinkage void invalidate_interrupt1(void);
42extern asmlinkage void invalidate_interrupt2(void);
43extern asmlinkage void invalidate_interrupt3(void);
44extern asmlinkage void invalidate_interrupt4(void);
45extern asmlinkage void invalidate_interrupt5(void);
46extern asmlinkage void invalidate_interrupt6(void);
47extern asmlinkage void invalidate_interrupt7(void);
48extern asmlinkage void invalidate_interrupt8(void);
49extern asmlinkage void invalidate_interrupt9(void);
50extern asmlinkage void invalidate_interrupt10(void);
51extern asmlinkage void invalidate_interrupt11(void);
52extern asmlinkage void invalidate_interrupt12(void);
53extern asmlinkage void invalidate_interrupt13(void);
54extern asmlinkage void invalidate_interrupt14(void);
55extern asmlinkage void invalidate_interrupt15(void);
56extern asmlinkage void invalidate_interrupt16(void);
57extern asmlinkage void invalidate_interrupt17(void);
58extern asmlinkage void invalidate_interrupt18(void);
59extern asmlinkage void invalidate_interrupt19(void);
60extern asmlinkage void invalidate_interrupt20(void);
61extern asmlinkage void invalidate_interrupt21(void);
62extern asmlinkage void invalidate_interrupt22(void);
63extern asmlinkage void invalidate_interrupt23(void);
64extern asmlinkage void invalidate_interrupt24(void);
65extern asmlinkage void invalidate_interrupt25(void);
66extern asmlinkage void invalidate_interrupt26(void);
67extern asmlinkage void invalidate_interrupt27(void);
68extern asmlinkage void invalidate_interrupt28(void);
69extern asmlinkage void invalidate_interrupt29(void);
70extern asmlinkage void invalidate_interrupt30(void);
71extern asmlinkage void invalidate_interrupt31(void);
72
73extern asmlinkage void irq_move_cleanup_interrupt(void);
74extern asmlinkage void reboot_interrupt(void);
75extern asmlinkage void threshold_interrupt(void);
76
77extern asmlinkage void call_function_interrupt(void);
78extern asmlinkage void call_function_single_interrupt(void);
2e088436 79
cf910e83
SA		 80#ifdef CONFIG_TRACING
81/* Interrupt handlers registered during init_IRQ */
82extern void trace_apic_timer_interrupt(void);
83extern void trace_x86_platform_ipi(void);
84extern void trace_error_interrupt(void);
85extern void trace_irq_work_interrupt(void);
86extern void trace_spurious_interrupt(void);
87extern void trace_thermal_interrupt(void);
88extern void trace_reschedule_interrupt(void);
89extern void trace_threshold_interrupt(void);
90extern void trace_call_function_interrupt(void);
91extern 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		 99struct 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 */
107struct 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 114struct 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
26011eee 135extern void setup_vector_irq(int cpu);
9338ad6f 136extern int assign_irq_vector(int, struct irq_cfg *, const struct cpumask *);
e32c67e0 137#ifdef CONFIG_SMP
9338ad6f 138extern void send_cleanup_vector(struct irq_cfg *);
e32c67e0
JL		 139#else
140static inline void send_cleanup_vector(struct irq_cfg *c) { }
141#endif
7ec13187 142
f7e909ea 143struct irq_data;
cb39288c
JL		 144int apic_set_affinity(struct irq_data *, const struct cpumask *,
145 unsigned int *dest_id);
26011eee
JL		 146#endif /* CONFIG_X86_LOCAL_APIC */
147
148#ifdef CONFIG_X86_IO_APIC
149extern void lock_vector_lock(void);
150extern void unlock_vector_lock(void);
151extern void __setup_vector_irq(int cpu);
152#else
153static inline void lock_vector_lock(void) {}
154static inline void unlock_vector_lock(void) {}
155static inline void __setup_vector_irq(int cpu) {}
156#endif
157
158/* IOAPIC */
159#ifdef CONFIG_X86_IO_APIC
160struct io_apic_irq_attr {
161 int ioapic;
162 int ioapic_pin;
163 int trigger;
164 int polarity;
165};
166
167static inline void set_io_apic_irq_attr(struct io_apic_irq_attr *irq_attr,
168 int ioapic, int ioapic_pin,
169 int trigger, int polarity)
170{
171 irq_attr->ioapic = ioapic;
172 irq_attr->ioapic_pin = ioapic_pin;
173 irq_attr->trigger = trigger;
174 irq_attr->polarity = polarity;
175}
2e088436 176
26011eee 177extern void setup_IO_APIC(void);
97e7b6f5 178extern void enable_IO_APIC(void);
26011eee
JL		 179extern void disable_IO_APIC(void);
180extern void setup_ioapic_dest(void);
181extern int IO_APIC_get_PCI_irq_vector(int bus, int devfn, int pin);
182
183extern unsigned long io_apic_irqs;
184#define IO_APIC_IRQ(x) (((x) >= NR_IRQS_LEGACY) || ((1 << (x)) & io_apic_irqs))
185#else /* CONFIG_X86_IO_APIC */
186#define IO_APIC_IRQ(x) 0
187#endif /* CONFIG_X86_IO_APIC */
97e7b6f5 188
2e088436
TG		 189/* Statistics */
190extern atomic_t irq_err_count;
191extern atomic_t irq_mis_count;
192
1a331957
TG		 193/* EISA */
194extern void eisa_set_level_irq(unsigned int irq);
195
2b97df06 196/* SMP */
1d9090e2
AK		 197extern __visible void smp_apic_timer_interrupt(struct pt_regs *);
198extern __visible void smp_spurious_interrupt(struct pt_regs *);
199extern __visible void smp_x86_platform_ipi(struct pt_regs *);
200extern __visible void smp_error_interrupt(struct pt_regs *);
2c1b284e
JSR		 201#ifdef CONFIG_X86_IO_APIC
202extern asmlinkage void smp_irq_move_cleanup_interrupt(void);
203#endif
3e5095d1 204#ifdef CONFIG_SMP
1d9090e2
AK		 205extern __visible void smp_reschedule_interrupt(struct pt_regs *);
206extern __visible void smp_call_function_interrupt(struct pt_regs *);
207extern __visible void smp_call_function_single_interrupt(struct pt_regs *);
208extern __visible void smp_invalidate_interrupt(struct pt_regs *);
e7f08dfd 209#endif
2b97df06 210
2414e021
JB		 211extern void (*__initconst interrupt[FIRST_SYSTEM_VECTOR
212 - FIRST_EXTERNAL_VECTOR])(void);
25c74b10
SA		 213#ifdef CONFIG_TRACING
214#define trace_interrupt interrupt
215#endif
497c9a19 216
79a51b25
PB		 217#define VECTOR_UNDEFINED (-1)
218#define VECTOR_RETRIGGERED (-2)
9345005f 219
22dc12d1
TG		 220typedef int vector_irq_t[NR_VECTORS];
221DECLARE_PER_CPU(vector_irq_t, vector_irq);
2e088436 222
22dc12d1
TG		 223#endif /* !ASSEMBLY_ */
224
1965aae3 225#endif /* _ASM_X86_HW_IRQ_H */
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