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.
- CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.
Dependency Surface
linux/types.hasm/psr.h
Detected Declarations
function arch_local_save_flagsfunction arch_local_irq_disablefunction arch_irqs_disabled_flagsfunction arch_irqs_disabled
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
- Immediate include surface: `linux/types.h`, `asm/psr.h`.
- Detected declarations: `function arch_local_save_flags`, `function arch_local_irq_disable`, `function arch_irqs_disabled_flags`, `function arch_irqs_disabled`.
- Atlas domain: Architecture Layer / arch/sparc.
- Implementation status: source implementation candidate.
Implementation Notes
- This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
- Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
- Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.