arch/powerpc/include/asm/i8259.h

File Facts

System

Linux kernel

Corpus path

arch/powerpc/include/asm/i8259.h

Extension

.h

Size

361 bytes

Lines

14

Domain

Architecture Layer

Bucket

arch/powerpc

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.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/irq.h

Detected Declarations

• No top-level syscall, struct, function, initcall, or export declaration detected by the generator.

Annotated Snippet

#ifndef _ASM_POWERPC_I8259_H
#define _ASM_POWERPC_I8259_H
#ifdef __KERNEL__

#include <linux/irq.h>

extern void i8259_init(struct device_node *node, unsigned long intack_addr);
extern unsigned int i8259_irq(void);
struct irq_domain *__init i8259_get_host(void);

#endif /* __KERNEL__ */
#endif /* _ASM_POWERPC_I8259_H */

Annotation

• Immediate include surface: `linux/irq.h`.
• Atlas domain: Architecture Layer / arch/powerpc.
• 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.