arch/s390/include/uapi/asm/schid.h

File Facts

System

Linux kernel

Corpus path

arch/s390/include/uapi/asm/schid.h

Extension

.h

Size

382 bytes

Lines

21

Domain

Architecture Layer

Bucket

arch/s390

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

• linux/types.h

Detected Declarations

• struct subchannel_id

Annotated Snippet

struct subchannel_id {
	__u32 cssid : 8;
	__u32 : 4;
	__u32 m : 1;
	__u32 ssid : 2;
	__u32 one : 1;
	__u32 sch_no : 16;
} __attribute__ ((packed, aligned(4)));

#endif /* __ASSEMBLER__ */

#endif /* _UAPIASM_SCHID_H */

Annotation

• Immediate include surface: `linux/types.h`.
• Detected declarations: `struct subchannel_id`.
• Atlas domain: Architecture Layer / arch/s390.
• 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.