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 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_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 struct irq_desc; 27 28 #ifdef CONFIG_HOTPLUG_CPU 29 #include <linux/cpumask.h> 30 extern int check_irq_vectors_for_cpu_disable(void); 31 extern void fixup_irqs(void); 32 #endif 33 34 #ifdef CONFIG_HAVE_KVM 35 extern void kvm_set_posted_intr_wakeup_handler(void (*handler)(void)); 36 #endif 37 38 extern void (*x86_platform_ipi_callback)(void); 39 extern void native_init_IRQ(void); 40 41 extern bool handle_irq(struct irq_desc *desc, struct pt_regs *regs); 42 43 extern __visible unsigned int do_IRQ(struct pt_regs *regs); 44 45 /* Interrupt vector management */ 46 extern DECLARE_BITMAP(used_vectors, NR_VECTORS); 47 extern int vector_used_by_percpu_irq(unsigned int vector); 48 49 extern void init_ISA_irqs(void); 50 51 #ifdef CONFIG_X86_LOCAL_APIC 52 void arch_trigger_cpumask_backtrace(const struct cpumask *mask, 53 bool exclude_self); 54 #define arch_trigger_cpumask_backtrace arch_trigger_cpumask_backtrace 55 #endif 56 57 #endif /* _ASM_X86_IRQ_H */ 58