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 
29 extern void asm_do_IRQ(unsigned int, struct pt_regs *);
30 void handle_IRQ(unsigned int, struct pt_regs *);
31 void init_IRQ(void);
32 
33 #ifdef CONFIG_SMP
34 #include <linux/cpumask.h>
35 
36 extern void arch_trigger_cpumask_backtrace(const cpumask_t *mask,
37 					   bool exclude_self);
38 #define arch_trigger_cpumask_backtrace arch_trigger_cpumask_backtrace
39 #endif
40 
nr_legacy_irqs(void)41 static inline int nr_legacy_irqs(void)
42 {
43 	return NR_IRQS_LEGACY;
44 }
45 
46 #endif
47 
48 #endif
49 
50