arch/powerpc/include/uapi/asm/papr-vpd.h

File Facts

System

Linux kernel

Corpus path

arch/powerpc/include/uapi/asm/papr-vpd.h

Extension

.h

Size

553 bytes

Lines

23

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

• asm/ioctl.h
• asm/papr-miscdev.h

Detected Declarations

• struct papr_location_code

Annotated Snippet

struct papr_location_code {
	/*
	 * PAPR+ v2.13 12.3.2.4 Converged Location Code Rules - Length
	 * Restrictions. 79 characters plus nul.
	 */
	char str[80];
};

/*
 * ioctl for /dev/papr-vpd. Returns a VPD handle fd corresponding to
 * the location code.
 */
#define PAPR_VPD_IOC_CREATE_HANDLE _IOW(PAPR_MISCDEV_IOC_ID, 0, struct papr_location_code)

#endif /* _UAPI_PAPR_VPD_H_ */

Annotation

• Immediate include surface: `asm/ioctl.h`, `asm/papr-miscdev.h`.
• Detected declarations: `struct papr_location_code`.
• 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.