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git.proxmox.com Git - mirror_ubuntu-artful-kernel.git/blob - arch/x86/include/asm/hw_irq.h
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 <asm/atomic.h>
26 #include <asm/sections.h>
28 /* Interrupt handlers registered during init_IRQ */
29 extern void apic_timer_interrupt(void);
30 extern void generic_interrupt(void);
31 extern void error_interrupt(void);
32 extern void spurious_interrupt(void);
33 extern void thermal_interrupt(void);
34 extern void reschedule_interrupt(void);
36 extern void invalidate_interrupt(void);
37 extern void invalidate_interrupt0(void);
38 extern void invalidate_interrupt1(void);
39 extern void invalidate_interrupt2(void);
40 extern void invalidate_interrupt3(void);
41 extern void invalidate_interrupt4(void);
42 extern void invalidate_interrupt5(void);
43 extern void invalidate_interrupt6(void);
44 extern void invalidate_interrupt7(void);
46 extern void irq_move_cleanup_interrupt(void);
47 extern void threshold_interrupt(void);
49 extern void call_function_interrupt(void);
50 extern void call_function_single_interrupt(void);
52 /* PIC specific functions */
53 extern void disable_8259A_irq(unsigned int irq
);
54 extern void enable_8259A_irq(unsigned int irq
);
55 extern int i8259A_irq_pending(unsigned int irq
);
56 extern void make_8259A_irq(unsigned int irq
);
57 extern void init_8259A(int aeoi
);
60 #define IO_APIC_IRQ(x) (((x) >= NR_IRQS_LEGACY) || ((1<<(x)) & io_apic_irqs))
61 extern unsigned long io_apic_irqs
;
63 extern void init_VISWS_APIC_irqs(void);
64 extern void setup_IO_APIC(void);
65 extern void disable_IO_APIC(void);
67 struct io_apic_irq_attr
{
74 static inline void set_io_apic_irq_attr(struct io_apic_irq_attr
*irq_attr
,
75 int ioapic
, int ioapic_pin
,
76 int trigger
, int polarity
)
78 irq_attr
->ioapic
= ioapic
;
79 irq_attr
->ioapic_pin
= ioapic_pin
;
80 irq_attr
->trigger
= trigger
;
81 irq_attr
->polarity
= polarity
;
84 extern int IO_APIC_get_PCI_irq_vector(int bus
, int devfn
, int pin
,
85 struct io_apic_irq_attr
*irq_attr
);
86 extern void setup_ioapic_dest(void);
88 extern void enable_IO_APIC(void);
91 extern atomic_t irq_err_count
;
92 extern atomic_t irq_mis_count
;
95 extern void eisa_set_level_irq(unsigned int irq
);
98 extern void smp_apic_timer_interrupt(struct pt_regs
*);
99 extern void smp_spurious_interrupt(struct pt_regs
*);
100 extern void smp_generic_interrupt(struct pt_regs
*);
101 extern void smp_error_interrupt(struct pt_regs
*);
102 #ifdef CONFIG_X86_IO_APIC
103 extern asmlinkage
void smp_irq_move_cleanup_interrupt(void);
106 extern void smp_reschedule_interrupt(struct pt_regs
*);
107 extern void smp_call_function_interrupt(struct pt_regs
*);
108 extern void smp_call_function_single_interrupt(struct pt_regs
*);
110 extern void smp_invalidate_interrupt(struct pt_regs
*);
112 extern asmlinkage
void smp_invalidate_interrupt(struct pt_regs
*);
116 extern void (*__initconst interrupt
[NR_VECTORS
-FIRST_EXTERNAL_VECTOR
])(void);
118 typedef int vector_irq_t
[NR_VECTORS
];
119 DECLARE_PER_CPU(vector_irq_t
, vector_irq
);
121 #ifdef CONFIG_X86_IO_APIC
122 extern void lock_vector_lock(void);
123 extern void unlock_vector_lock(void);
124 extern void __setup_vector_irq(int cpu
);
126 static inline void lock_vector_lock(void) {}
127 static inline void unlock_vector_lock(void) {}
128 static inline void __setup_vector_irq(int cpu
) {}
131 #endif /* !ASSEMBLY_ */
133 #endif /* _ASM_X86_HW_IRQ_H */