projects / mirror_ubuntu-bionic-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 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 | ||
| 24 | #include <asm/atomic.h> | |
| 25 | #include <asm/irq.h> | |
| 26 | #include <asm/sections.h> | |
| 27 | ||
| 28 | #define platform_legacy_irq(irq) ((irq) < 16) | |
| 29 | ||
| 30 | /* Interrupt handlers registered during init_IRQ */ | |
| 31 | extern void apic_timer_interrupt(void); | |
| 32 | extern void error_interrupt(void); | |
| 33 | extern void spurious_interrupt(void); | |
| 34 | extern void thermal_interrupt(void); | |
| 35 | extern void reschedule_interrupt(void); | |
| 36 | ||
| 37 | extern void invalidate_interrupt(void); | |
| 38 | extern void invalidate_interrupt0(void); | |
| 39 | extern void invalidate_interrupt1(void); | |
| 40 | extern void invalidate_interrupt2(void); | |
| 41 | extern void invalidate_interrupt3(void); | |
| 42 | extern void invalidate_interrupt4(void); | |
| 43 | extern void invalidate_interrupt5(void); | |
| 44 | extern void invalidate_interrupt6(void); | |
| 45 | extern void invalidate_interrupt7(void); | |
| 46 | ||
| 47 | extern void irq_move_cleanup_interrupt(void); | |
| 48 | extern void threshold_interrupt(void); | |
| 49 | ||
| 50 | extern void call_function_interrupt(void); | |
| 1a781a77 | 51 | extern void call_function_single_interrupt(void); |
| 2e088436 TG |
52 | |
| 53 | /* PIC specific functions */ | |
| 54 | extern void disable_8259A_irq(unsigned int irq); | |
| 55 | extern void enable_8259A_irq(unsigned int irq); | |
| 56 | extern int i8259A_irq_pending(unsigned int irq); | |
| 57 | extern void make_8259A_irq(unsigned int irq); | |
| 58 | extern void init_8259A(int aeoi); | |
| 59 | ||
| 60 | /* IOAPIC */ | |
| 61 | #define IO_APIC_IRQ(x) (((x) >= 16) || ((1<<(x)) & io_apic_irqs)) | |
| 62 | extern unsigned long io_apic_irqs; | |
| 63 | ||
| 64 | extern void init_VISWS_APIC_irqs(void); | |
| 65 | extern void setup_IO_APIC(void); | |
| 66 | extern void disable_IO_APIC(void); | |
| 2e088436 TG |
67 | extern int IO_APIC_get_PCI_irq_vector(int bus, int slot, int fn); |
| 68 | extern void setup_ioapic_dest(void); | |
| 69 | ||
| 97e7b6f5 TG |
70 | #ifdef CONFIG_X86_64 |
| 71 | extern void enable_IO_APIC(void); | |
| 72 | #endif | |
| 73 | ||
| 2e088436 TG |
74 | /* Statistics */ |
| 75 | extern atomic_t irq_err_count; | |
| 76 | extern atomic_t irq_mis_count; | |
| 77 | ||
| 1a331957 TG |
78 | /* EISA */ |
| 79 | extern void eisa_set_level_irq(unsigned int irq); | |
| 80 | ||
| 2b97df06 JS |
81 | /* SMP */ |
| 82 | extern void smp_apic_timer_interrupt(struct pt_regs *); | |
| 2b97df06 JS |
83 | extern void smp_spurious_interrupt(struct pt_regs *); |
| 84 | extern void smp_error_interrupt(struct pt_regs *); | |
| 3e5095d1 | 85 | #ifdef CONFIG_SMP |
| e7f08dfd JS |
86 | extern void smp_reschedule_interrupt(struct pt_regs *); |
| 87 | extern void smp_call_function_interrupt(struct pt_regs *); | |
| 88 | extern void smp_call_function_single_interrupt(struct pt_regs *); | |
| b2139aa0 JS |
89 | #ifdef CONFIG_X86_32 |
| 90 | extern void smp_invalidate_interrupt(struct pt_regs *); | |
| 91 | #else | |
| 92 | extern asmlinkage void smp_invalidate_interrupt(struct pt_regs *); | |
| 93 | #endif | |
| e7f08dfd | 94 | #endif |
| 2b97df06 | 95 | |
| 4687518c | 96 | extern void (*__initconst interrupt[NR_VECTORS-FIRST_EXTERNAL_VECTOR])(void); |
| 497c9a19 | 97 | |
| 22dc12d1 TG |
98 | typedef int vector_irq_t[NR_VECTORS]; |
| 99 | DECLARE_PER_CPU(vector_irq_t, vector_irq); | |
| d388e5fd | 100 | |
| 497c9a19 | 101 | #ifdef CONFIG_X86_IO_APIC |
| d388e5fd EB |
102 | extern void lock_vector_lock(void); |
| 103 | extern void unlock_vector_lock(void); | |
| 104 | extern void __setup_vector_irq(int cpu); | |
| 105 | #else | |
| 106 | static inline void lock_vector_lock(void) {} | |
| 107 | static inline void unlock_vector_lock(void) {} | |
| 108 | static inline void __setup_vector_irq(int cpu) {} | |
| 109 | #endif | |
| 2e088436 | 110 | |
| 22dc12d1 TG |
111 | #endif /* !ASSEMBLY_ */ |
| 112 | ||
| 1965aae3 | 113 | #endif /* _ASM_X86_HW_IRQ_H */ |