drivers/bus/brcmstb_gisb.c

File Facts

System

Linux kernel

Corpus path

drivers/bus/brcmstb_gisb.c

Extension

.c

Size

13904 bytes

Lines

561

Domain

Driver Families

Bucket

drivers/bus

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.
• Uses kernel synchronization; read lock ordering, sleepability, and interrupt context assumptions before translating.
• Touches IRQ or DMA behavior; this matters for the representative real-device path.
• Allocates kernel memory; connect allocation flags and lifetime to context constraints.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/init.h
• linux/types.h
• linux/module.h
• linux/panic_notifier.h
• linux/platform_device.h
• linux/interrupt.h
• linux/sysfs.h
• linux/io.h
• linux/string.h
• linux/device.h
• linux/list.h
• linux/of.h
• linux/bitops.h
• linux/pm.h
• linux/kernel.h
• linux/kdebug.h
• linux/notifier.h
• asm/traps.h

Detected Declarations

• struct brcmstb_gisb_arb_device
• function gisb_read
• function gisb_read_address
• function gisb_read_bp_address
• function gisb_write
• function gisb_arb_get_timeout
• function gisb_arb_set_timeout
• function brcmstb_gisb_master_to_str
• function brcmstb_gisb_arb_decode_addr
• function brcmstb_bus_error_handler
• function list_for_each_entry
• function brcmstb_gisb_timeout_handler
• function brcmstb_gisb_tea_handler
• function brcmstb_gisb_bp_handler
• function dump_gisb_error
• function brcmstb_gisb_arb_probe
• function brcmstb_gisb_arb_suspend
• function brcmstb_gisb_arb_resume_noirq
• function brcm_gisb_driver_init
• module init brcm_gisb_driver_init

Annotated Snippet

module_init(brcm_gisb_driver_init);

MODULE_AUTHOR("Broadcom");
MODULE_DESCRIPTION("Broadcom STB GISB arbiter driver");
MODULE_LICENSE("GPL v2");

Annotation

• Immediate include surface: `linux/init.h`, `linux/types.h`, `linux/module.h`, `linux/panic_notifier.h`, `linux/platform_device.h`, `linux/interrupt.h`, `linux/sysfs.h`, `linux/io.h`.
• Detected declarations: `struct brcmstb_gisb_arb_device`, `function gisb_read`, `function gisb_read_address`, `function gisb_read_bp_address`, `function gisb_write`, `function gisb_arb_get_timeout`, `function gisb_arb_set_timeout`, `function brcmstb_gisb_master_to_str`, `function brcmstb_gisb_arb_decode_addr`, `function brcmstb_bus_error_handler`.
• Atlas domain: Driver Families / drivers/bus.
• Implementation status: integration implementation candidate.
• Synchronization appears in or near this file; preserve lock ordering, sleepability, and interrupt-context constraints.
• 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.