arch/x86/include/asm/irq.h

   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 */