blob: 14848909e0dec49c7b5a7cc56b482bc9a068d26f [file] [log] [blame]
Daniel Mentz94787a12013-05-29 21:12:04 -07001/*
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
17extern void arch_local_irq_restore(unsigned long);
18extern unsigned long arch_local_irq_save(void);
19extern void arch_local_irq_enable(void);
20
21static inline notrace 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
29static inline notrace void arch_local_irq_disable(void)
30{
31 arch_local_irq_save();
32}
33
34static inline notrace bool arch_irqs_disabled_flags(unsigned long flags)
35{
36 return (flags & PSR_PIL) != 0;
37}
38
39static inline notrace 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) */