40 lines
1.0 KiB
C
40 lines
1.0 KiB
C
|
/*
|
||
|
|
* 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
|
||
|
|
* raw_local_irq_*() functions from the lowlevel headers.
|
||
|
|
*/
|
||
|
|
#ifndef _ASM_IRQFLAGS_H
|
||
|
|
#define _ASM_IRQFLAGS_H
|
||
|
|
|
||
|
|
#ifndef __ASSEMBLY__
|
||
|
|
|
||
|
|
extern void raw_local_irq_restore(unsigned long);
|
||
|
|
extern unsigned long __raw_local_irq_save(void);
|
||
|
|
extern void raw_local_irq_enable(void);
|
||
|
|
|
||
|
|
static inline unsigned long getipl(void)
|
||
|
|
{
|
||
|
|
unsigned long retval;
|
||
|
|
|
||
|
|
__asm__ __volatile__("rd %%psr, %0" : "=r" (retval));
|
||
|
|
return retval;
|
||
|
|
}
|
||
|
|
|
||
|
|
#define raw_local_save_flags(flags) ((flags) = getipl())
|
||
|
|
#define raw_local_irq_save(flags) ((flags) = __raw_local_irq_save())
|
||
|
|
#define raw_local_irq_disable() ((void) __raw_local_irq_save())
|
||
|
|
#define raw_irqs_disabled() ((getipl() & PSR_PIL) != 0)
|
||
|
|
|
||
|
|
static inline int raw_irqs_disabled_flags(unsigned long flags)
|
||
|
|
{
|
||
|
|
return ((flags & PSR_PIL) != 0);
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif /* (__ASSEMBLY__) */
|
||
|
|
|
||
|
|
#endif /* !(_ASM_IRQFLAGS_H) */
|