include/asm-generic/simd.h

File Facts

System

Linux kernel

Corpus path

include/asm-generic/simd.h

Extension

.h

Size

615 bytes

Lines

23

Domain

Repository Root And Misc

Bucket

include

Inferred role

Repository Root And Misc: implementation source

Status

source implementation candidate

Why This File Exists

Top-level or miscellaneous repository surface. Use this as map coverage unless a later manual pass promotes the file into a deeper subsystem dossier.

• Top-level or miscellaneous repository surface. Use this as map coverage unless a later manual pass promotes the file into a deeper subsystem dossier.

Dependency Surface

• linux/compiler_attributes.h
• linux/preempt.h
• linux/sched.h
• linux/types.h

Detected Declarations

• function may_use_simd

Annotated Snippet

#ifndef _ASM_GENERIC_SIMD_H
#define _ASM_GENERIC_SIMD_H

#include <linux/compiler_attributes.h>
#include <linux/preempt.h>
#include <linux/sched.h>
#include <linux/types.h>

/*
 * may_use_simd - whether it is allowable at this time to issue SIMD
 *                instructions or access the SIMD register file
 *
 * As architectures typically don't preserve the SIMD register file when
 * taking an interrupt, !in_interrupt() should be a reasonable default.
 */
static __must_check inline bool may_use_simd(void)
{
	return !in_interrupt();
}

#endif	/* _ASM_GENERIC_SIMD_H */

Annotation

• Immediate include surface: `linux/compiler_attributes.h`, `linux/preempt.h`, `linux/sched.h`, `linux/types.h`.
• Detected declarations: `function may_use_simd`.
• Atlas domain: Repository Root And Misc / include.
• 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.