arch/alpha/lib/clear_page.S

File Facts

System

Linux kernel

Corpus path

arch/alpha/lib/clear_page.S

Extension

.S

Size

492 bytes

Lines

42

Domain

Architecture Layer

Bucket

arch/alpha

Inferred role

Architecture Layer: exported/initcall integration point

Status

integration 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.
• Exports symbols or registers init work; inspect boot/module ordering and who consumes the exported contract.

Dependency Surface

• linux/export.h

Detected Declarations

• export clear_page

Annotated Snippet

#include <linux/export.h>
	.text
	.align 4
	.global clear_page
	.ent clear_page
clear_page:
	.prologue 0

	lda	$0,128
	nop
	unop
	nop

1:	stq	$31,0($16)
	stq	$31,8($16)
	stq	$31,16($16)
	stq	$31,24($16)

	stq	$31,32($16)
	stq	$31,40($16)
	stq	$31,48($16)
	subq	$0,1,$0

	stq	$31,56($16)
	addq	$16,64,$16
	unop
	bne	$0,1b

	ret
	nop
	unop
	nop

	.end clear_page
	EXPORT_SYMBOL(clear_page)

Annotation

• Immediate include surface: `linux/export.h`.
• Detected declarations: `export clear_page`.
• Atlas domain: Architecture Layer / arch/alpha.
• Implementation status: integration 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.