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 kvm_posted_intr_wakeup_ipi(void);
33 extern asmlinkage void kvm_posted_intr_nested_ipi(void);
34 extern asmlinkage void error_interrupt(void);
35 extern asmlinkage void irq_work_interrupt(void);
37 extern asmlinkage void spurious_interrupt(void);
38 extern asmlinkage void thermal_interrupt(void);
39 extern asmlinkage void reschedule_interrupt(void);
41 extern asmlinkage void irq_move_cleanup_interrupt(void);
42 extern asmlinkage void reboot_interrupt(void);
43 extern asmlinkage void threshold_interrupt(void);
44 extern asmlinkage void deferred_error_interrupt(void);
46 extern asmlinkage void call_function_interrupt(void);
47 extern asmlinkage void call_function_single_interrupt(void);
49 #ifdef CONFIG_X86_LOCAL_APIC
55 X86_IRQ_ALLOC_TYPE_IOAPIC = 1,
56 X86_IRQ_ALLOC_TYPE_HPET,
57 X86_IRQ_ALLOC_TYPE_MSI,
58 X86_IRQ_ALLOC_TYPE_MSIX,
59 X86_IRQ_ALLOC_TYPE_DMAR,
60 X86_IRQ_ALLOC_TYPE_UV,
63 struct irq_alloc_info {
64 enum irq_alloc_type type;
66 const struct cpumask *mask; /* CPU mask for vector allocation */
69 #ifdef CONFIG_HPET_TIMER
78 struct pci_dev *msi_dev;
79 irq_hw_number_t msi_hwirq;
82 #ifdef CONFIG_X86_IO_APIC
87 u32 ioapic_trigger : 1;
88 u32 ioapic_polarity : 1;
90 struct IO_APIC_route_entry *ioapic_entry;
93 #ifdef CONFIG_DMAR_TABLE
103 struct pci_dev *ht_dev;
111 unsigned long uv_offset;
115 #if IS_ENABLED(CONFIG_VMD)
117 struct msi_desc *desc;
124 unsigned int dest_apicid;
129 extern struct irq_cfg *irq_cfg(unsigned int irq);
130 extern struct irq_cfg *irqd_cfg(struct irq_data *irq_data);
131 extern void lock_vector_lock(void);
132 extern void unlock_vector_lock(void);
133 extern void setup_vector_irq(int cpu);
135 extern void send_cleanup_vector(struct irq_cfg *);
136 extern void irq_complete_move(struct irq_cfg *cfg);
138 static inline void send_cleanup_vector(struct irq_cfg *c) { }
139 static inline void irq_complete_move(struct irq_cfg *c) { }
142 extern void apic_ack_edge(struct irq_data *data);
143 #else /* CONFIG_X86_LOCAL_APIC */
144 static inline void lock_vector_lock(void) {}
145 static inline void unlock_vector_lock(void) {}
146 #endif /* CONFIG_X86_LOCAL_APIC */
149 extern atomic_t irq_err_count;
150 extern atomic_t irq_mis_count;
152 extern void elcr_set_level_irq(unsigned int irq);
154 extern char irq_entries_start[];
155 #ifdef CONFIG_TRACING
156 #define trace_irq_entries_start irq_entries_start
159 #define VECTOR_UNUSED NULL
160 #define VECTOR_RETRIGGERED ((void *)~0UL)
162 typedef struct irq_desc* vector_irq_t[NR_VECTORS];
163 DECLARE_PER_CPU(vector_irq_t, vector_irq);
165 #endif /* !ASSEMBLY_ */
167 #endif /* _ASM_X86_HW_IRQ_H */