drivers/watchdog/octeon-wdt-main.c

File Facts

System

Linux kernel

Corpus path

drivers/watchdog/octeon-wdt-main.c

Extension

.c

Size

16514 bytes

Lines

608

Domain

Driver Families

Bucket

drivers/watchdog

Inferred role

Driver Families: exported/initcall integration point

Status

integration 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.
• Exports symbols or registers init work; inspect boot/module ordering and who consumes the exported contract.
• Touches IRQ or DMA behavior; this matters for the representative real-device path.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/interrupt.h
• linux/watchdog.h
• linux/cpumask.h
• linux/module.h
• linux/delay.h
• linux/cpu.h
• linux/irq.h
• linux/irqdomain.h
• asm/mipsregs.h
• asm/uasm.h
• asm/octeon/octeon.h
• asm/octeon/cvmx-boot-vector.h
• asm/octeon/cvmx-ciu2-defs.h
• asm/octeon/cvmx-rst-defs.h

Detected Declarations

• function cpu2core
• function octeon_wdt_poke_irq
• function octeon_wdt_write_string
• function octeon_wdt_write_hex
• function octeon_wdt_nmi_stage3
• function octeon_wdt_cpu_to_irq
• function octeon_wdt_cpu_pre_down
• function octeon_wdt_cpu_online
• function octeon_wdt_ping
• function for_each_online_cpu
• function octeon_wdt_calc_parameters
• function octeon_wdt_set_timeout
• function for_each_online_cpu
• function octeon_wdt_start
• function octeon_wdt_stop
• function octeon_wdt_init
• function octeon_wdt_cleanup
• module init octeon_wdt_init

Annotated Snippet

module_init(octeon_wdt_init);
module_exit(octeon_wdt_cleanup);

Annotation

• Immediate include surface: `linux/interrupt.h`, `linux/watchdog.h`, `linux/cpumask.h`, `linux/module.h`, `linux/delay.h`, `linux/cpu.h`, `linux/irq.h`, `linux/irqdomain.h`.
• Detected declarations: `function cpu2core`, `function octeon_wdt_poke_irq`, `function octeon_wdt_write_string`, `function octeon_wdt_write_hex`, `function octeon_wdt_nmi_stage3`, `function octeon_wdt_cpu_to_irq`, `function octeon_wdt_cpu_pre_down`, `function octeon_wdt_cpu_online`, `function octeon_wdt_ping`, `function for_each_online_cpu`.
• Atlas domain: Driver Families / drivers/watchdog.
• Implementation status: integration implementation candidate.
• IRQ or DMA behavior appears here, which is relevant to the selected PCIe/NVMe device path.

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.