arch/x86/include/asm/irq.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _ASM_X86_IRQ_H
   3 #define _ASM_X86_IRQ_H
   4 /*
   5  *      (C) 1992, 1993 Linus Torvalds, (C) 1997 Ingo Molnar
   6  *
   7  *      IRQ/IPI changes taken from work by Thomas Radke
   8  *      <tomsoft@informatik.tu-chemnitz.de>
   9  */
  10
  11 #include <asm/apicdef.h>
  12 #include <asm/irq_vectors.h>
  13
  14 static inline int irq_canonicalize(int irq)
  15 {
  16         return ((irq == 2) ? 9 : irq);
  17 }
  18
  19 #ifdef CONFIG_X86_32
  20 extern void irq_ctx_init(int cpu);
  21 #else
  22 # define irq_ctx_init(cpu) do { } while (0)
  23 #endif
  24
  25 #define __ARCH_HAS_DO_SOFTIRQ
  26
  27 struct irq_desc;
  28
  29 extern void fixup_irqs(void);
  30
  31 #ifdef CONFIG_HAVE_KVM
  32 extern void kvm_set_posted_intr_wakeup_handler(void (*handler)(void));
  33 extern __visible void smp_kvm_posted_intr_ipi(struct pt_regs *regs);
  34 extern __visible void smp_kvm_posted_intr_wakeup_ipi(struct pt_regs *regs);
  35 extern __visible void smp_kvm_posted_intr_nested_ipi(struct pt_regs *regs);
  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 extern void init_ISA_irqs(void);
  46
  47 extern void __init init_IRQ(void);
  48
  49 #ifdef CONFIG_X86_LOCAL_APIC
  50 void arch_trigger_cpumask_backtrace(const struct cpumask *mask,
  51                                     bool exclude_self);
  52
  53 extern __visible void smp_x86_platform_ipi(struct pt_regs *regs);
  54 #define arch_trigger_cpumask_backtrace arch_trigger_cpumask_backtrace
  55 #endif
  56
  57 #endif /* _ASM_X86_IRQ_H */