drivers/acpi/platform_profile.c

File Facts

System

Linux kernel

Corpus path

drivers/acpi/platform_profile.c

Extension

.c

Size

18325 bytes

Lines

718

Domain

Driver Families

Bucket

drivers/acpi

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.
• 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/acpi.h
• linux/bits.h
• linux/cleanup.h
• linux/init.h
• linux/mutex.h
• linux/platform_profile.h
• linux/sysfs.h

Detected Declarations

• struct platform_profile_handler
• struct aggregate_choices_data
• function _commmon_choices_show
• function for_each_set_bit
• function _store_class_profile
• function _notify_class_profile
• function get_class_profile
• function name_show
• function choices_show
• function profile_show
• function scoped_cond_guard
• function profile_store
• function scoped_cond_guard
• function pprof_device_release
• function _aggregate_choices
• function _remove_hidden_choices
• function platform_profile_choices_show
• function scoped_cond_guard
• function _aggregate_profiles
• function _store_and_notify
• function platform_profile_show
• function scoped_cond_guard
• function platform_profile_store
• function scoped_cond_guard
• function profile_class_registered
• function profile_class_is_visible
• function platform_profile_notify
• function platform_profile_cycle
• function scoped_cond_guard
• function platform_profile_remove
• function devm_platform_profile_release
• function platform_profile_init
• function platform_profile_exit
• module init platform_profile_init
• export platform_profile_notify
• export platform_profile_cycle
• export platform_profile_register
• export platform_profile_remove
• export devm_platform_profile_register

Annotated Snippet

module_init(platform_profile_init);
module_exit(platform_profile_exit);

MODULE_AUTHOR("Mark Pearson <markpearson@lenovo.com>");
MODULE_DESCRIPTION("ACPI platform profile sysfs interface");
MODULE_LICENSE("GPL");

Annotation

• Immediate include surface: `linux/acpi.h`, `linux/bits.h`, `linux/cleanup.h`, `linux/init.h`, `linux/mutex.h`, `linux/platform_profile.h`, `linux/sysfs.h`.
• Detected declarations: `struct platform_profile_handler`, `struct aggregate_choices_data`, `function _commmon_choices_show`, `function for_each_set_bit`, `function _store_class_profile`, `function _notify_class_profile`, `function get_class_profile`, `function name_show`, `function choices_show`, `function profile_show`.
• Atlas domain: Driver Families / drivers/acpi.
• Implementation status: integration 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.