xref: /openbmc/linux/arch/x86/include/asm/irq.h (revision 4f205687)
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 extern void irq_force_complete_move(struct irq_desc *desc);
33 #endif
34 
35 #ifdef CONFIG_HAVE_KVM
36 extern void kvm_set_posted_intr_wakeup_handler(void (*handler)(void));
37 #endif
38 
39 extern void (*x86_platform_ipi_callback)(void);
40 extern void native_init_IRQ(void);
41 
42 extern bool handle_irq(struct irq_desc *desc, struct pt_regs *regs);
43 
44 extern __visible unsigned int do_IRQ(struct pt_regs *regs);
45 
46 /* Interrupt vector management */
47 extern DECLARE_BITMAP(used_vectors, NR_VECTORS);
48 extern int vector_used_by_percpu_irq(unsigned int vector);
49 
50 extern void init_ISA_irqs(void);
51 
52 #ifdef CONFIG_X86_LOCAL_APIC
53 void arch_trigger_all_cpu_backtrace(bool);
54 #define arch_trigger_all_cpu_backtrace arch_trigger_all_cpu_backtrace
55 #endif
56 
57 #endif /* _ASM_X86_IRQ_H */
58