drivers/s390/cio/trace.c

File Facts

System

Linux kernel

Corpus path

drivers/s390/cio/trace.c

Extension

.c

Size

674 bytes

Lines

25

Domain

Driver Families

Bucket

drivers/s390

Inferred role

Driver Families: implementation source

Status

source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

• Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

• asm/crw.h
• cio.h
• trace.h

Detected Declarations

• No top-level syscall, struct, function, initcall, or export declaration detected by the generator.

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0
/*
 * Tracepoint definitions for s390_cio
 *
 * Copyright IBM Corp. 2015
 * Author(s): Peter Oberparleiter <oberpar@linux.vnet.ibm.com>
 */

#include <asm/crw.h>
#include "cio.h"

#define CREATE_TRACE_POINTS
#include "trace.h"

EXPORT_TRACEPOINT_SYMBOL(s390_cio_stsch);
EXPORT_TRACEPOINT_SYMBOL(s390_cio_msch);
EXPORT_TRACEPOINT_SYMBOL(s390_cio_tsch);
EXPORT_TRACEPOINT_SYMBOL(s390_cio_tpi);
EXPORT_TRACEPOINT_SYMBOL(s390_cio_ssch);
EXPORT_TRACEPOINT_SYMBOL(s390_cio_csch);
EXPORT_TRACEPOINT_SYMBOL(s390_cio_hsch);
EXPORT_TRACEPOINT_SYMBOL(s390_cio_xsch);
EXPORT_TRACEPOINT_SYMBOL(s390_cio_rsch);
EXPORT_TRACEPOINT_SYMBOL(s390_cio_chsc);

Annotation

• Immediate include surface: `asm/crw.h`, `cio.h`, `trace.h`.
• Atlas domain: Driver Families / drivers/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.