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

File Facts

System

Linux kernel

Corpus path

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

Extension

.h

Size

465 bytes

Lines

26

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 sclp_ctl_sccb

Annotated Snippet

struct sclp_ctl_sccb {
	__u32	cmdw;
	__u64	sccb;
} __attribute__((packed));

#define SCLP_CTL_IOCTL_MAGIC 0x10

#define SCLP_CTL_SCCB \
	_IOWR(SCLP_CTL_IOCTL_MAGIC, 0x10, struct sclp_ctl_sccb)

#endif

Annotation

• Immediate include surface: `linux/types.h`.
• Detected declarations: `struct sclp_ctl_sccb`.
• 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.