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77ef50a5 VN |
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 | 74 | /* IPI functions */ |
cff73a6f | 75 | #ifdef CONFIG_X86_32 |
2e088436 | 76 | extern void send_IPI_self(int vector); |
cff73a6f | 77 | #endif |
2e088436 TG |
78 | extern void send_IPI(int dest, int vector); |
79 | ||
80 | /* Statistics */ | |
81 | extern atomic_t irq_err_count; | |
82 | extern atomic_t irq_mis_count; | |
83 | ||
1a331957 TG |
84 | /* EISA */ |
85 | extern void eisa_set_level_irq(unsigned int irq); | |
86 | ||
9b7dc567 TG |
87 | /* Voyager functions */ |
88 | extern asmlinkage void vic_cpi_interrupt(void); | |
89 | extern asmlinkage void vic_sys_interrupt(void); | |
90 | extern asmlinkage void vic_cmn_interrupt(void); | |
91 | extern asmlinkage void qic_timer_interrupt(void); | |
92 | extern asmlinkage void qic_invalidate_interrupt(void); | |
93 | extern asmlinkage void qic_reschedule_interrupt(void); | |
94 | extern asmlinkage void qic_enable_irq_interrupt(void); | |
95 | extern asmlinkage void qic_call_function_interrupt(void); | |
96 | ||
2b97df06 JS |
97 | /* SMP */ |
98 | extern void smp_apic_timer_interrupt(struct pt_regs *); | |
2b97df06 JS |
99 | extern void smp_spurious_interrupt(struct pt_regs *); |
100 | extern void smp_error_interrupt(struct pt_regs *); | |
e7f08dfd JS |
101 | #ifdef CONFIG_X86_SMP |
102 | extern void smp_reschedule_interrupt(struct pt_regs *); | |
103 | extern void smp_call_function_interrupt(struct pt_regs *); | |
104 | extern void smp_call_function_single_interrupt(struct pt_regs *); | |
b2139aa0 JS |
105 | #ifdef CONFIG_X86_32 |
106 | extern void smp_invalidate_interrupt(struct pt_regs *); | |
107 | #else | |
108 | extern asmlinkage void smp_invalidate_interrupt(struct pt_regs *); | |
109 | #endif | |
e7f08dfd | 110 | #endif |
2b97df06 | 111 | |
96a388de | 112 | #ifdef CONFIG_X86_32 |
bcd56260 | 113 | extern void (*const interrupt[NR_VECTORS])(void); |
497c9a19 YL |
114 | #endif |
115 | ||
22dc12d1 TG |
116 | typedef int vector_irq_t[NR_VECTORS]; |
117 | DECLARE_PER_CPU(vector_irq_t, vector_irq); | |
d388e5fd | 118 | |
497c9a19 | 119 | #ifdef CONFIG_X86_IO_APIC |
d388e5fd EB |
120 | extern void lock_vector_lock(void); |
121 | extern void unlock_vector_lock(void); | |
122 | extern void __setup_vector_irq(int cpu); | |
123 | #else | |
124 | static inline void lock_vector_lock(void) {} | |
125 | static inline void unlock_vector_lock(void) {} | |
126 | static inline void __setup_vector_irq(int cpu) {} | |
127 | #endif | |
2e088436 | 128 | |
22dc12d1 TG |
129 | #endif /* !ASSEMBLY_ */ |
130 | ||
77ef50a5 | 131 | #endif /* ASM_X86__HW_IRQ_H */ |