| H. Peter Anvin | 1965aae | 2008-10-22 22:26:29 -0700 | [diff] [blame] | 1 | #ifndef _ASM_X86_IRQ_H |
| 2 | #define _ASM_X86_IRQ_H |
| Thomas Gleixner | 22067d4 | 2008-05-02 22:14:44 +0200 | [diff] [blame] | 3 | /* |
| 4 | * (C) 1992, 1993 Linus Torvalds, (C) 1997 Ingo Molnar |
| 5 | * |
| 6 | * IRQ/IPI changes taken from work by Thomas Radke |
| 7 | * <tomsoft@informatik.tu-chemnitz.de> |
| 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_LOCAL_APIC |
| 19 | # define ARCH_HAS_NMI_WATCHDOG |
| Thomas Gleixner | 96a388d | 2007-10-11 11:20:03 +0200 | [diff] [blame] | 20 | #endif |
| Thomas Gleixner | 22067d4 | 2008-05-02 22:14:44 +0200 | [diff] [blame] | 21 | |
| 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 |
| 26 | #else |
| 27 | # define irq_ctx_init(cpu) do { } while (0) |
| 28 | # define irq_ctx_exit(cpu) do { } while (0) |
| 29 | # ifdef CONFIG_X86_64 |
| 30 | # define __ARCH_HAS_DO_SOFTIRQ |
| 31 | # endif |
| 32 | #endif |
| 33 | |
| Thomas Gleixner | 22067d4 | 2008-05-02 22:14:44 +0200 | [diff] [blame] | 34 | #ifdef CONFIG_HOTPLUG_CPU |
| 35 | #include <linux/cpumask.h> |
| Mike Travis | d7b381b | 2008-12-16 17:33:58 -0800 | [diff] [blame] | 36 | extern void fixup_irqs(void); |
| Thomas Gleixner | 22067d4 | 2008-05-02 22:14:44 +0200 | [diff] [blame] | 37 | #endif |
| 38 | |
| Dimitri Sivanich | acaabe7 | 2009-03-04 12:56:05 -0600 | [diff] [blame] | 39 | extern void (*generic_interrupt_extension)(void); |
| Thomas Gleixner | 22067d4 | 2008-05-02 22:14:44 +0200 | [diff] [blame] | 40 | extern void init_IRQ(void); |
| 41 | extern void native_init_IRQ(void); |
| Jeremy Fitzhardinge | 9b2b76a | 2009-02-06 14:09:40 -0800 | [diff] [blame] | 42 | extern bool handle_irq(unsigned irq, struct pt_regs *regs); |
| Thomas Gleixner | 22067d4 | 2008-05-02 22:14:44 +0200 | [diff] [blame] | 43 | |
| Jeremy Fitzhardinge | 7c1d7cd | 2009-02-06 14:09:41 -0800 | [diff] [blame] | 44 | extern unsigned int do_IRQ(struct pt_regs *regs); |
| 45 | |
| Thomas Gleixner | 22067d4 | 2008-05-02 22:14:44 +0200 | [diff] [blame] | 46 | /* Interrupt vector management */ |
| 47 | extern DECLARE_BITMAP(used_vectors, NR_VECTORS); |
| Yinghai Lu | b77b881 | 2008-12-19 15:23:44 -0800 | [diff] [blame] | 48 | extern int vector_used_by_percpu_irq(unsigned int vector); |
| Thomas Gleixner | 22067d4 | 2008-05-02 22:14:44 +0200 | [diff] [blame] | 49 | |
| Thomas Gleixner | d9112f4 | 2009-08-20 09:41:38 +0200 | [diff] [blame^] | 50 | extern void init_ISA_irqs(void); |
| 51 | |
| H. Peter Anvin | 1965aae | 2008-10-22 22:26:29 -0700 | [diff] [blame] | 52 | #endif /* _ASM_X86_IRQ_H */ |