xref: /openbmc/linux/arch/arm/include/asm/irq.h (revision 98ddec80)
1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __ASM_ARM_IRQ_H
3 #define __ASM_ARM_IRQ_H
4 
5 #define NR_IRQS_LEGACY	16
6 
7 #ifndef CONFIG_SPARSE_IRQ
8 #include <mach/irqs.h>
9 #else
10 #define NR_IRQS NR_IRQS_LEGACY
11 #endif
12 
13 #ifndef irq_canonicalize
14 #define irq_canonicalize(i)	(i)
15 #endif
16 
17 /*
18  * Use this value to indicate lack of interrupt
19  * capability
20  */
21 #ifndef NO_IRQ
22 #define NO_IRQ	((unsigned int)(-1))
23 #endif
24 
25 #ifndef __ASSEMBLY__
26 struct irqaction;
27 struct pt_regs;
28 extern void migrate_irqs(void);
29 
30 extern void asm_do_IRQ(unsigned int, struct pt_regs *);
31 void handle_IRQ(unsigned int, struct pt_regs *);
32 void init_IRQ(void);
33 
34 #ifdef CONFIG_MULTI_IRQ_HANDLER
35 extern void (*handle_arch_irq)(struct pt_regs *);
36 extern void set_handle_irq(void (*handle_irq)(struct pt_regs *));
37 #endif
38 
39 #ifdef CONFIG_SMP
40 extern void arch_trigger_cpumask_backtrace(const cpumask_t *mask,
41 					   bool exclude_self);
42 #define arch_trigger_cpumask_backtrace arch_trigger_cpumask_backtrace
43 #endif
44 
45 static inline int nr_legacy_irqs(void)
46 {
47 	return NR_IRQS_LEGACY;
48 }
49 
50 #endif
51 
52 #endif
53 
54