arch/sparc/kernel/auxio_64.c

File Facts

System

Linux kernel

Corpus path

arch/sparc/kernel/auxio_64.c

Extension

.c

Size

3188 bytes

Lines

152

Domain

Architecture Layer

Bucket

arch/sparc

Inferred role

Architecture Layer: exported/initcall integration point

Status

integration 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.
• Exports symbols or registers init work; inspect boot/module ordering and who consumes the exported contract.
• Uses kernel synchronization; read lock ordering, sleepability, and interrupt context assumptions before translating.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/module.h
• linux/kernel.h
• linux/init.h
• linux/ioport.h
• linux/of.h
• linux/platform_device.h
• asm/prom.h
• asm/io.h
• asm/auxio.h

Detected Declarations

• enum auxio_type
• function __auxio_rmw
• function __auxio_set_bit
• function auxio_set_led
• function __auxio_sbus_set_lte
• function auxio_set_lte
• function auxio_probe
• function auxio_init
• module init auxio_init
• export auxio_register
• export auxio_set_led
• export auxio_set_lte

Annotated Snippet

/* Must be after subsys_initcall() so that busses are probed.  Must
 * be before device_initcall() because things like the floppy driver
 * need to use the AUXIO register.
 */
fs_initcall(auxio_init);

Annotation

• Immediate include surface: `linux/module.h`, `linux/kernel.h`, `linux/init.h`, `linux/ioport.h`, `linux/of.h`, `linux/platform_device.h`, `asm/prom.h`, `asm/io.h`.
• Detected declarations: `enum auxio_type`, `function __auxio_rmw`, `function __auxio_set_bit`, `function auxio_set_led`, `function __auxio_sbus_set_lte`, `function auxio_set_lte`, `function auxio_probe`, `function auxio_init`, `module init auxio_init`, `export auxio_register`.
• Atlas domain: Architecture Layer / arch/sparc.
• Implementation status: integration implementation candidate.
• Synchronization appears in or near this file; preserve lock ordering, sleepability, and interrupt-context constraints.

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.