xref: /openbmc/linux/arch/x86/include/asm/irq.h (revision b34e08d5)
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 #ifdef CONFIG_HOTPLUG_CPU
27 #include <linux/cpumask.h>
28 extern int check_irq_vectors_for_cpu_disable(void);
29 extern void fixup_irqs(void);
30 extern void irq_force_complete_move(int);
31 #endif
32 
33 extern void (*x86_platform_ipi_callback)(void);
34 extern void native_init_IRQ(void);
35 extern bool handle_irq(unsigned irq, struct pt_regs *regs);
36 
37 extern __visible unsigned int do_IRQ(struct pt_regs *regs);
38 
39 /* Interrupt vector management */
40 extern DECLARE_BITMAP(used_vectors, NR_VECTORS);
41 extern int vector_used_by_percpu_irq(unsigned int vector);
42 
43 extern void init_ISA_irqs(void);
44 
45 #ifdef CONFIG_X86_LOCAL_APIC
46 void arch_trigger_all_cpu_backtrace(void);
47 #define arch_trigger_all_cpu_backtrace arch_trigger_all_cpu_backtrace
48 #endif
49 
50 #endif /* _ASM_X86_IRQ_H */
51