1 #ifndef _ASM_X86_HW_IRQ_H
2 #define _ASM_X86_HW_IRQ_H
5 * (C) 1992, 1993 Linus Torvalds, (C) 1997 Ingo Molnar
7 * moved some of the old arch/i386/kernel/irq.h to here. VY
9 * IRQ/IPI changes taken from work by Thomas Radke
10 * <tomsoft@informatik.tu-chemnitz.de>
12 * hacked by Andi Kleen for x86-64.
16 #include <asm/irq_vectors.h>
20 #include <linux/percpu.h>
21 #include <linux/profile.h>
22 #include <linux/smp.h>
24 #include <linux/atomic.h>
26 #include <asm/sections.h>
28 /* Interrupt handlers registered during init_IRQ */
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);
35 extern asmlinkage void spurious_interrupt(void);
36 extern asmlinkage void thermal_interrupt(void);
37 extern asmlinkage void reschedule_interrupt(void);
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);
73 extern asmlinkage void irq_move_cleanup_interrupt(void);
74 extern asmlinkage void reboot_interrupt(void);
75 extern asmlinkage void threshold_interrupt(void);
77 extern asmlinkage void call_function_interrupt(void);
78 extern asmlinkage void call_function_single_interrupt(void);
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 */
99 #ifdef CONFIG_X86_LOCAL_APIC
104 enum irq_alloc_type {
105 X86_IRQ_ALLOC_TYPE_IOAPIC = 1,
106 X86_IRQ_ALLOC_TYPE_HPET,
107 X86_IRQ_ALLOC_TYPE_MSI,
108 X86_IRQ_ALLOC_TYPE_MSIX,
109 X86_IRQ_ALLOC_TYPE_DMAR,
110 X86_IRQ_ALLOC_TYPE_UV,
113 struct irq_alloc_info {
114 enum irq_alloc_type type;
116 const struct cpumask *mask; /* CPU mask for vector allocation */
119 #ifdef CONFIG_HPET_TIMER
126 #ifdef CONFIG_PCI_MSI
128 struct pci_dev *msi_dev;
129 irq_hw_number_t msi_hwirq;
132 #ifdef CONFIG_X86_IO_APIC
137 u32 ioapic_trigger : 1;
138 u32 ioapic_polarity : 1;
139 u32 ioapic_valid : 1;
140 struct IO_APIC_route_entry *ioapic_entry;
143 #ifdef CONFIG_DMAR_TABLE
153 struct pci_dev *ht_dev;
161 unsigned long uv_offset;
169 /* Allocate contiguous CPU vectors */
170 X86_IRQ_ALLOC_CONTIGUOUS_VECTORS = 0x1,
174 cpumask_var_t domain;
175 cpumask_var_t old_domain;
176 unsigned int dest_apicid;
178 u8 move_in_progress : 1;
180 #ifdef CONFIG_X86_IO_APIC
182 struct list_head irq_2_pin;
188 extern struct irq_domain *x86_vector_domain;
190 extern void init_irq_alloc_info(struct irq_alloc_info *info,
191 const struct cpumask *mask);
192 extern void copy_irq_alloc_info(struct irq_alloc_info *dst,
193 struct irq_alloc_info *src);
194 extern struct irq_cfg *irq_cfg(unsigned int irq);
195 extern struct irq_cfg *irqd_cfg(struct irq_data *irq_data);
196 extern struct irq_cfg *alloc_irq_and_cfg_at(unsigned int at, int node);
197 extern void lock_vector_lock(void);
198 extern void unlock_vector_lock(void);
199 extern int assign_irq_vector(int, struct irq_cfg *, const struct cpumask *);
200 extern void clear_irq_vector(int irq, struct irq_cfg *cfg);
201 extern void setup_vector_irq(int cpu);
203 extern void send_cleanup_vector(struct irq_cfg *);
204 extern void irq_complete_move(struct irq_cfg *cfg);
206 static inline void send_cleanup_vector(struct irq_cfg *c) { }
207 static inline void irq_complete_move(struct irq_cfg *c) { }
210 extern int apic_retrigger_irq(struct irq_data *data);
211 extern void apic_ack_edge(struct irq_data *data);
212 extern int apic_set_affinity(struct irq_data *data, const struct cpumask *mask,
213 unsigned int *dest_id);
214 #else /* CONFIG_X86_LOCAL_APIC */
215 static inline void lock_vector_lock(void) {}
216 static inline void unlock_vector_lock(void) {}
217 #endif /* CONFIG_X86_LOCAL_APIC */
219 #ifdef CONFIG_PCI_MSI
220 extern void arch_init_msi_domain(struct irq_domain *domain);
222 static inline void arch_init_msi_domain(struct irq_domain *domain) { }
225 extern void arch_init_htirq_domain(struct irq_domain *domain);
227 static inline void arch_init_htirq_domain(struct irq_domain *domain) { }
231 extern atomic_t irq_err_count;
232 extern atomic_t irq_mis_count;
235 extern void eisa_set_level_irq(unsigned int irq);
238 extern __visible void smp_apic_timer_interrupt(struct pt_regs *);
239 extern __visible void smp_spurious_interrupt(struct pt_regs *);
240 extern __visible void smp_x86_platform_ipi(struct pt_regs *);
241 extern __visible void smp_error_interrupt(struct pt_regs *);
242 #ifdef CONFIG_X86_IO_APIC
243 extern asmlinkage void smp_irq_move_cleanup_interrupt(void);
246 extern __visible void smp_reschedule_interrupt(struct pt_regs *);
247 extern __visible void smp_call_function_interrupt(struct pt_regs *);
248 extern __visible void smp_call_function_single_interrupt(struct pt_regs *);
249 extern __visible void smp_invalidate_interrupt(struct pt_regs *);
252 extern char irq_entries_start[];
253 #ifdef CONFIG_TRACING
254 #define trace_irq_entries_start irq_entries_start
257 #define VECTOR_UNDEFINED (-1)
258 #define VECTOR_RETRIGGERED (-2)
260 typedef int vector_irq_t[NR_VECTORS];
261 DECLARE_PER_CPU(vector_irq_t, vector_irq);
263 #endif /* !ASSEMBLY_ */
265 #endif /* _ASM_X86_HW_IRQ_H */