1#ifndef _ASM_X86_HW_IRQ_H 2#define _ASM_X86_HW_IRQ_H 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 16#include <asm/irq_vectors.h> 17 18#ifndef __ASSEMBLY__ 19 20#include <linux/percpu.h> 21#include <linux/profile.h> 22#include <linux/smp.h> 23 24#include <linux/atomic.h> 25#include <asm/irq.h> 26#include <asm/sections.h> 27 28/* Interrupt handlers registered during init_IRQ */ 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); 79 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 97#ifdef CONFIG_IRQ_REMAP 98/* Intel specific interrupt remapping information */ 99struct irq_2_iommu { 100 struct intel_iommu *iommu; 101 u16 irte_index; 102 u16 sub_handle; 103 u8 irte_mask; 104}; 105 106/* 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}; 111#endif /* CONFIG_IRQ_REMAP */ 112 113#ifdef CONFIG_X86_LOCAL_APIC 114struct irq_data; 115 116struct irq_cfg { 117 cpumask_var_t domain; 118 cpumask_var_t old_domain; 119 u8 vector; 120 u8 move_in_progress : 1; 121#ifdef CONFIG_IRQ_REMAP 122 u8 remapped : 1; 123 union { 124 struct irq_2_iommu irq_2_iommu; 125 struct irq_2_irte irq_2_irte; 126 }; 127#endif 128 union { 129#ifdef CONFIG_X86_IO_APIC 130 struct { 131 struct list_head irq_2_pin; 132 }; 133#endif 134 }; 135}; 136 137extern struct irq_cfg *irq_cfg(unsigned int irq); 138extern struct irq_cfg *irqd_cfg(struct irq_data *irq_data); 139extern struct irq_cfg *alloc_irq_and_cfg_at(unsigned int at, int node); 140extern void lock_vector_lock(void); 141extern void unlock_vector_lock(void); 142extern int assign_irq_vector(int, struct irq_cfg *, const struct cpumask *); 143extern void clear_irq_vector(int irq, struct irq_cfg *cfg); 144extern void setup_vector_irq(int cpu); 145#ifdef CONFIG_SMP 146extern void send_cleanup_vector(struct irq_cfg *); 147extern void irq_complete_move(struct irq_cfg *cfg); 148#else 149static inline void send_cleanup_vector(struct irq_cfg *c) { } 150static inline void irq_complete_move(struct irq_cfg *c) { } 151#endif 152 153extern int apic_retrigger_irq(struct irq_data *data); 154extern void apic_ack_edge(struct irq_data *data); 155extern int apic_set_affinity(struct irq_data *data, const struct cpumask *mask, 156 unsigned int *dest_id); 157#else /* CONFIG_X86_LOCAL_APIC */ 158static inline void lock_vector_lock(void) {} 159static inline void unlock_vector_lock(void) {} 160#endif /* CONFIG_X86_LOCAL_APIC */ 161 162/* Statistics */ 163extern atomic_t irq_err_count; 164extern atomic_t irq_mis_count; 165 166/* EISA */ 167extern void eisa_set_level_irq(unsigned int irq); 168 169/* SMP */ 170extern __visible void smp_apic_timer_interrupt(struct pt_regs *); 171extern __visible void smp_spurious_interrupt(struct pt_regs *); 172extern __visible void smp_x86_platform_ipi(struct pt_regs *); 173extern __visible void smp_error_interrupt(struct pt_regs *); 174#ifdef CONFIG_X86_IO_APIC 175extern asmlinkage void smp_irq_move_cleanup_interrupt(void); 176#endif 177#ifdef CONFIG_SMP 178extern __visible void smp_reschedule_interrupt(struct pt_regs *); 179extern __visible void smp_call_function_interrupt(struct pt_regs *); 180extern __visible void smp_call_function_single_interrupt(struct pt_regs *); 181extern __visible void smp_invalidate_interrupt(struct pt_regs *); 182#endif 183 184extern char irq_entries_start[]; 185#ifdef CONFIG_TRACING 186#define trace_irq_entries_start irq_entries_start 187#endif 188 189#define VECTOR_UNDEFINED (-1) 190#define VECTOR_RETRIGGERED (-2) 191 192typedef int vector_irq_t[NR_VECTORS]; 193DECLARE_PER_CPU(vector_irq_t, vector_irq); 194 195#endif /* !ASSEMBLY_ */ 196 197#endif /* _ASM_X86_HW_IRQ_H */ 198