arch/x86/include/asm/irq_work.h

File Facts

System

Linux kernel

Corpus path

arch/x86/include/asm/irq_work.h

Extension

.h

Size

358 bytes

Lines

20

Domain

Architecture Layer

Bucket

arch/x86

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

• asm/cpufeature.h

Detected Declarations

• function arch_irq_work_has_interrupt
• function arch_irq_work_has_interrupt

Annotated Snippet

#ifndef _ASM_IRQ_WORK_H
#define _ASM_IRQ_WORK_H

#include <asm/cpufeature.h>

#ifdef CONFIG_X86_LOCAL_APIC
static inline bool arch_irq_work_has_interrupt(void)
{
	return boot_cpu_has(X86_FEATURE_APIC);
}
#else
static inline bool arch_irq_work_has_interrupt(void)
{
	return false;
}
#endif

#endif /* _ASM_IRQ_WORK_H */

Annotation

• Immediate include surface: `asm/cpufeature.h`.
• Detected declarations: `function arch_irq_work_has_interrupt`, `function arch_irq_work_has_interrupt`.
• Atlas domain: Architecture Layer / arch/x86.
• 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.