arch/sparc/include/asm/irqflags_32.h

Source file repositories/reference/linux-study-clean/arch/sparc/include/asm/irqflags_32.h

File Facts

System
Linux kernel
Corpus path
arch/sparc/include/asm/irqflags_32.h
Extension
.h
Size
1060 bytes
Lines
49
Domain
Architecture Layer
Bucket
arch/sparc
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 _ASM_IRQFLAGS_H
#define _ASM_IRQFLAGS_H

#ifndef __ASSEMBLER__

#include <linux/types.h>
#include <asm/psr.h>

void arch_local_irq_restore(unsigned long);
unsigned long arch_local_irq_save(void);
void arch_local_irq_enable(void);

static inline notrace unsigned long arch_local_save_flags(void)
{
	unsigned long flags;

	asm volatile("rd        %%psr, %0" : "=r" (flags));
	return flags;
}

static inline notrace void arch_local_irq_disable(void)
{
	arch_local_irq_save();
}

static inline notrace bool arch_irqs_disabled_flags(unsigned long flags)
{
	return (flags & PSR_PIL) != 0;
}

static inline notrace bool arch_irqs_disabled(void)
{
	return arch_irqs_disabled_flags(arch_local_save_flags());
}

#endif /* (__ASSEMBLER__) */

#endif /* !(_ASM_IRQFLAGS_H) */

Annotation

Implementation Notes