blob: d4d0711de0f9f5031439927d02517d6a5e743509 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
|
/*
* include/asm/irqflags.h
*
* IRQ flags handling
*
* This file gets included from lowlevel asm headers too, to provide
* wrapped versions of the local_irq_*() APIs, based on the
* arch_local_irq_*() functions from the lowlevel headers.
*/
#ifndef _ASM_IRQFLAGS_H
#define _ASM_IRQFLAGS_H
#ifndef __ASSEMBLY__
#include <linux/types.h>
extern void arch_local_irq_restore(unsigned long);
extern unsigned long arch_local_irq_save(void);
extern void arch_local_irq_enable(void);
static inline unsigned long arch_local_save_flags(void)
{
unsigned long flags;
asm volatile("rd %%psr, %0" : "=r" (flags));
return flags;
}
static inline void arch_local_irq_disable(void)
{
arch_local_irq_save();
}
static inline bool arch_irqs_disabled_flags(unsigned long flags)
{
return (flags & PSR_PIL) != 0;
}
static inline bool arch_irqs_disabled(void)
{
return arch_irqs_disabled_flags(arch_local_save_flags());
}
#endif /* (__ASSEMBLY__) */
#endif /* !(_ASM_IRQFLAGS_H) */
|
