arch/m68k/include/asm/machw.h

File Facts

System

Linux kernel

Corpus path

arch/m68k/include/asm/machw.h

Extension

.h

Size

588 bytes

Lines

25

Domain

Architecture Layer

Bucket

arch/m68k

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.
• Touches IRQ or DMA behavior; this matters for the representative real-device path.

Dependency Surface

• No C-style include directives detected by the generator.

Detected Declarations

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

Annotated Snippet

#ifndef _ASM_MACHW_H_
#define _ASM_MACHW_H_

/*
 * head.S maps the videomem to VIDEOMEMBASE
 */

#define VIDEOMEMBASE	0xf0000000
#define VIDEOMEMSIZE	(4096*1024)
#define VIDEOMEMMASK	(-4096*1024)

#endif /* linux/machw.h */

Annotation

• Atlas domain: Architecture Layer / arch/m68k.
• Implementation status: source implementation candidate.
• IRQ or DMA behavior appears here, which is relevant to the selected PCIe/NVMe device path.

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.