4 * (C) 1992, 1993 Linus Torvalds, (C) 1997 Ingo Molnar
6 * IRQ/IPI changes taken from work by Thomas Radke
7 * <tomsoft@informatik.tu-chemnitz.de>
10 #include <asm/apicdef.h>
11 #include <asm/irq_vectors.h>
13 static inline int irq_canonicalize(int irq)
15 return ((irq == 2) ? 9 : irq);
18 #ifdef CONFIG_X86_LOCAL_APIC
19 # define ARCH_HAS_NMI_WATCHDOG
22 #ifdef CONFIG_4KSTACKS
23 extern void irq_ctx_init(int cpu);
24 extern void irq_ctx_exit(int cpu);
25 # define __ARCH_HAS_DO_SOFTIRQ
27 # define irq_ctx_init(cpu) do { } while (0)
28 # define irq_ctx_exit(cpu) do { } while (0)
30 # define __ARCH_HAS_DO_SOFTIRQ
34 #ifdef CONFIG_HOTPLUG_CPU
35 #include <linux/cpumask.h>
36 extern void fixup_irqs(void);
39 extern unsigned int do_IRQ(struct pt_regs *regs);
40 extern void init_IRQ(void);
41 extern void native_init_IRQ(void);
43 /* Interrupt vector management */
44 extern DECLARE_BITMAP(used_vectors, NR_VECTORS);
45 extern int vector_used_by_percpu_irq(unsigned int vector);
47 #endif /* _ASM_X86_IRQ_H */