Release 4.12 include/asm-generic/irqflags.h

#ifndef __ASM_GENERIC_IRQFLAGS_H

#define __ASM_GENERIC_IRQFLAGS_H

/*
 * All architectures should implement at least the first two functions,
 * usually inline assembly will be the best way.
 */
#ifndef ARCH_IRQ_DISABLED

#define ARCH_IRQ_DISABLED 0

#define ARCH_IRQ_ENABLED 1
#endif

/* read interrupt enabled status */
#ifndef arch_local_save_flags
unsigned long arch_local_save_flags(void);
#endif

/* set interrupt enabled status */
#ifndef arch_local_irq_restore
void arch_local_irq_restore(unsigned long flags);
#endif

/* get status and disable interrupts */
#ifndef arch_local_irq_save


static inline unsigned long arch_local_irq_save(void)
{
	unsigned long flags;
	flags = arch_local_save_flags();
	arch_local_irq_restore(ARCH_IRQ_DISABLED);
	return flags;
}
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#endif

/* test flags */
#ifndef arch_irqs_disabled_flags


static inline int arch_irqs_disabled_flags(unsigned long flags)
{
	return flags == ARCH_IRQ_DISABLED;
}
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#endif

/* unconditionally enable interrupts */
#ifndef arch_local_irq_enable


static inline void arch_local_irq_enable(void)
{
	arch_local_irq_restore(ARCH_IRQ_ENABLED);
}
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#endif

/* unconditionally disable interrupts */
#ifndef arch_local_irq_disable


static inline void arch_local_irq_disable(void)
{
	arch_local_irq_restore(ARCH_IRQ_DISABLED);
}
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#endif

/* test hardware interrupt enable bit */
#ifndef arch_irqs_disabled


static inline int arch_irqs_disabled(void)
{
	return arch_irqs_disabled_flags(arch_local_save_flags());
}
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#endif

#endif /* __ASM_GENERIC_IRQFLAGS_H */
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Directory: include/asm-generic

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