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  * raw_local_irq_*() functions from the lowlevel headers.
9  */
10 #ifndef _ASM_IRQFLAGS_H
11 #define _ASM_IRQFLAGS_H
12 
13 #ifndef __ASSEMBLY__
14 
15 extern void raw_local_irq_restore(unsigned long);
16 extern unsigned long __raw_local_irq_save(void);
17 extern void raw_local_irq_enable(void);
18 
19 static inline unsigned long getipl(void)
20 {
21         unsigned long retval;
22 
23         __asm__ __volatile__("rd        %%psr, %0" : "=r" (retval));
24         return retval;
25 }
26 
27 #define raw_local_save_flags(flags) ((flags) = getipl())
28 #define raw_local_irq_save(flags)   ((flags) = __raw_local_irq_save())
29 #define raw_local_irq_disable()     ((void) __raw_local_irq_save())
30 #define raw_irqs_disabled()         ((getipl() & PSR_PIL) != 0)
31 
32 static inline int raw_irqs_disabled_flags(unsigned long flags)
33 {
34         return ((flags & PSR_PIL) != 0);
35 }
36 
37 #endif /* (__ASSEMBLY__) */
38 
39 #endif /* !(_ASM_IRQFLAGS_H) */
40