You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
67 lines
1.5 KiB
67 lines
1.5 KiB
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#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;
|
|
}
|
|
#endif
|
|
|
|
/* test flags */
|
|
#ifndef arch_irqs_disabled_flags
|
|
static inline int arch_irqs_disabled_flags(unsigned long flags)
|
|
{
|
|
return flags == ARCH_IRQ_DISABLED;
|
|
}
|
|
#endif
|
|
|
|
/* unconditionally enable interrupts */
|
|
#ifndef arch_local_irq_enable
|
|
static inline void arch_local_irq_enable(void)
|
|
{
|
|
arch_local_irq_restore(ARCH_IRQ_ENABLED);
|
|
}
|
|
#endif
|
|
|
|
/* unconditionally disable interrupts */
|
|
#ifndef arch_local_irq_disable
|
|
static inline void arch_local_irq_disable(void)
|
|
{
|
|
arch_local_irq_restore(ARCH_IRQ_DISABLED);
|
|
}
|
|
#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());
|
|
}
|
|
#endif
|
|
|
|
#endif /* __ASM_GENERIC_IRQFLAGS_H */
|
|
|