drivers/interconnect/core.c

File Facts

System

Linux kernel

Corpus path

drivers/interconnect/core.c

Extension

.c

Size

29578 bytes

Lines

1253

Domain

Driver Families

Bucket

drivers/interconnect

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.
• 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/debugfs.h
• linux/device.h
• linux/idr.h
• linux/init.h
• linux/interconnect.h
• linux/interconnect-provider.h
• linux/list.h
• linux/mutex.h
• linux/slab.h
• linux/of.h
• linux/overflow.h
• internal.h
• trace.h

Detected Declarations

• function icc_summary_show_one
• function icc_summary_show
• function list_for_each_entry
• function list_for_each_entry
• function hlist_for_each_entry
• function icc_graph_show_link
• function icc_graph_show_node
• function icc_graph_show
• function list_for_each_entry
• function list_for_each_entry_safe
• function aggregate
• function hlist_for_each_entry
• function apply_constraints
• function icc_std_aggregate
• function of_icc_get_from_provider
• function devm_icc_release
• function of_icc_get_by_index
• function of_icc_get
• function icc_get
• function icc_set_tag
• function icc_get_name
• function icc_set_bw
• function __icc_enable
• function icc_enable
• function icc_disable
• function icc_put
• function icc_node_create_dyn
• function icc_node_create
• function icc_node_destroy
• function icc_node_set_name
• function icc_link_nodes
• function icc_link_create
• function icc_node_add
• function icc_node_del
• function icc_nodes_remove
• function list_for_each_entry_safe_reverse
• function icc_provider_init
• function icc_provider_register
• function icc_provider_deregister
• function of_count_icc_providers
• function for_each_available_child_of_node
• function icc_sync_state
• function list_for_each_entry
• function icc_init
• module init icc_init
• export icc_std_aggregate
• export of_icc_xlate_onecell
• export of_icc_get_from_provider

Annotated Snippet

device_initcall(icc_init);

Annotation

• Immediate include surface: `linux/debugfs.h`, `linux/device.h`, `linux/idr.h`, `linux/init.h`, `linux/interconnect.h`, `linux/interconnect-provider.h`, `linux/list.h`, `linux/mutex.h`.
• Detected declarations: `function icc_summary_show_one`, `function icc_summary_show`, `function list_for_each_entry`, `function list_for_each_entry`, `function hlist_for_each_entry`, `function icc_graph_show_link`, `function icc_graph_show_node`, `function icc_graph_show`, `function list_for_each_entry`, `function list_for_each_entry_safe`.
• Atlas domain: Driver Families / drivers/interconnect.
• 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.