drivers/cpuidle/cpuidle-psci-domain.c

File Facts

System

Linux kernel

Corpus path

drivers/cpuidle/cpuidle-psci-domain.c

Extension

.c

Size

4366 bytes

Lines

193

Domain

Driver Families

Bucket

drivers/cpuidle

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/cpu.h
• linux/device.h
• linux/kernel.h
• linux/platform_device.h
• linux/pm_domain.h
• linux/pm_runtime.h
• linux/psci.h
• linux/slab.h
• linux/string.h
• cpuidle-psci.h
• dt_idle_genpd.h

Detected Declarations

• struct psci_pd_provider
• function psci_pd_power_off
• function psci_pd_init
• function psci_pd_remove
• function list_for_each_entry_safe_reverse
• function psci_cpuidle_domain_probe
• function psci_idle_init_domains
• module init psci_idle_init_domains

Annotated Snippet

core_initcall(psci_idle_init_domains);

Annotation

• Immediate include surface: `linux/cpu.h`, `linux/device.h`, `linux/kernel.h`, `linux/platform_device.h`, `linux/pm_domain.h`, `linux/pm_runtime.h`, `linux/psci.h`, `linux/slab.h`.
• Detected declarations: `struct psci_pd_provider`, `function psci_pd_power_off`, `function psci_pd_init`, `function psci_pd_remove`, `function list_for_each_entry_safe_reverse`, `function psci_cpuidle_domain_probe`, `function psci_idle_init_domains`, `module init psci_idle_init_domains`.
• Atlas domain: Driver Families / drivers/cpuidle.
• 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.