arch/um/include/asm/irqflags.h

Source file repositories/reference/linux-study-clean/arch/um/include/asm/irqflags.h

File Facts

System
Linux kernel
Corpus path
arch/um/include/asm/irqflags.h
Extension
.h
Size
806 bytes
Lines
39
Domain
Architecture Layer
Bucket
arch/um
Inferred role
Architecture Layer: implementation source
Status
source implementation candidate

Why This File Exists

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

Dependency Surface

Detected Declarations

Annotated Snippet

#ifndef __UM_IRQFLAGS_H
#define __UM_IRQFLAGS_H

int um_get_signals(void);
int um_set_signals(int enable);
void block_signals(void);
void unblock_signals(void);

#define arch_local_save_flags arch_local_save_flags
static inline unsigned long arch_local_save_flags(void)
{
	return um_get_signals();
}

#define arch_local_irq_restore arch_local_irq_restore
static inline void arch_local_irq_restore(unsigned long flags)
{
	um_set_signals(flags);
}

#define arch_local_irq_enable arch_local_irq_enable
static inline void arch_local_irq_enable(void)
{
	unblock_signals();
}

#define arch_local_irq_disable arch_local_irq_disable
static inline void arch_local_irq_disable(void)
{
	block_signals();
}

#define ARCH_IRQ_DISABLED	0

#include <asm-generic/irqflags.h>

#endif

Annotation

Implementation Notes