Linux Kernel  3.7.1
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irq.h
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1 #ifndef _ASM_X86_IRQ_H
2 #define _ASM_X86_IRQ_H
3 /*
4  * (C) 1992, 1993 Linus Torvalds, (C) 1997 Ingo Molnar
5  *
6  * IRQ/IPI changes taken from work by Thomas Radke
8  */
9 
10 #include <asm/apicdef.h>
11 #include <asm/irq_vectors.h>
12 
13 static inline int irq_canonicalize(int irq)
14 {
15  return ((irq == 2) ? 9 : irq);
16 }
17 
18 #ifdef CONFIG_X86_32
19 extern void irq_ctx_init(int cpu);
20 #else
21 # define irq_ctx_init(cpu) do { } while (0)
22 #endif
23 
24 #define __ARCH_HAS_DO_SOFTIRQ
25 
26 #ifdef CONFIG_HOTPLUG_CPU
27 #include <linux/cpumask.h>
28 extern void fixup_irqs(void);
29 extern void irq_force_complete_move(int);
30 #endif
31 
33 extern void native_init_IRQ(void);
34 extern bool handle_irq(unsigned irq, struct pt_regs *regs);
35 
36 extern unsigned int do_IRQ(struct pt_regs *regs);
37 
38 /* Interrupt vector management */
39 extern DECLARE_BITMAP(used_vectors, NR_VECTORS);
40 extern int vector_used_by_percpu_irq(unsigned int vector);
41 
42 extern void init_ISA_irqs(void);
43 
44 #endif /* _ASM_X86_IRQ_H */