include/xen/arm/swiotlb-xen.h

File Facts

System

Linux kernel

Corpus path

include/xen/arm/swiotlb-xen.h

Extension

.h

Size

431 bytes

Lines

21

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

• xen/features.h
• xen/xen.h

Detected Declarations

• function xen_swiotlb_detect

Annotated Snippet

#ifndef _ASM_ARM_SWIOTLB_XEN_H
#define _ASM_ARM_SWIOTLB_XEN_H

#include <xen/features.h>
#include <xen/xen.h>

static inline int xen_swiotlb_detect(void)
{
	if (!xen_domain())
		return 0;
	if (xen_feature(XENFEAT_direct_mapped))
		return 1;
	/* legacy case */
	if (!xen_feature(XENFEAT_not_direct_mapped) && xen_initial_domain())
		return 1;
	return 0;
}

#endif /* _ASM_ARM_SWIOTLB_XEN_H */

Annotation

• Immediate include surface: `xen/features.h`, `xen/xen.h`.
• Detected declarations: `function xen_swiotlb_detect`.
• 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.