1 /*
2  * include/asm/irqflags.h
3  *
4  * IRQ flags handling
5  *
6  * This file gets included from lowlevel asm headers too, to provide
7  * wrapped versions of the local_irq_*() APIs, based on the
8  * arch_local_irq_*() functions from the lowlevel headers.
9  */
10 #ifndef _ASM_IRQFLAGS_H
11 #define _ASM_IRQFLAGS_H
12 
13 #ifndef __ASSEMBLY__
14 
15 #include <linux/types.h>
16 
17 extern void arch_local_irq_restore(unsigned long);
18 extern unsigned long arch_local_irq_save(void);
19 extern void arch_local_irq_enable(void);
20 
21 static inline unsigned long arch_local_save_flags(void)
22 {
23 	unsigned long flags;
24 
25 	asm volatile("rd        %%psr, %0" : "=r" (flags));
26 	return flags;
27 }
28 
29 static inline void arch_local_irq_disable(void)
30 {
31 	arch_local_irq_save();
32 }
33 
34 static inline bool arch_irqs_disabled_flags(unsigned long flags)
35 {
36 	return (flags & PSR_PIL) != 0;
37 }
38 
39 static inline bool arch_irqs_disabled(void)
40 {
41 	return arch_irqs_disabled_flags(arch_local_save_flags());
42 }
43 
44 #endif /* (__ASSEMBLY__) */
45 
46 #endif /* !(_ASM_IRQFLAGS_H) */
47