include/linux/pci-pwrctrl.h

File Facts

System

Linux kernel

Corpus path

include/linux/pci-pwrctrl.h

Extension

.h

Size

2592 bytes

Lines

69

Domain

Core OS

Bucket

Core Kernel Interface

Inferred role

Core OS: implementation source

Status

source implementation candidate

Why This File Exists

Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.

• Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/notifier.h
• linux/workqueue.h

Detected Declarations

• struct device
• struct device_link
• struct pci_pwrctrl
• function pci_pwrctrl_create_devices
• function pci_pwrctrl_destroy_devices
• function pci_pwrctrl_power_off_devices

Annotated Snippet

struct pci_pwrctrl {
	struct device *dev;
	int (*power_on)(struct pci_pwrctrl *pwrctrl);
	int (*power_off)(struct pci_pwrctrl *pwrctrl);

	/* private: internal use only */
	struct notifier_block nb;
	struct device_link *link;
	struct work_struct work;
};

void pci_pwrctrl_init(struct pci_pwrctrl *pwrctrl, struct device *dev);
int pci_pwrctrl_device_set_ready(struct pci_pwrctrl *pwrctrl);
void pci_pwrctrl_device_unset_ready(struct pci_pwrctrl *pwrctrl);
int devm_pci_pwrctrl_device_set_ready(struct device *dev,
				     struct pci_pwrctrl *pwrctrl);
#if IS_ENABLED(CONFIG_PCI_PWRCTRL)
int pci_pwrctrl_create_devices(struct device *parent);
void pci_pwrctrl_destroy_devices(struct device *parent);
int pci_pwrctrl_power_on_devices(struct device *parent);
void pci_pwrctrl_power_off_devices(struct device *parent);
#else
static inline int pci_pwrctrl_create_devices(struct device *parent) { return 0; }
static void pci_pwrctrl_destroy_devices(struct device *parent) { }
static inline int pci_pwrctrl_power_on_devices(struct device *parent) { return 0; }
static void pci_pwrctrl_power_off_devices(struct device *parent) { }
#endif
#endif /* __PCI_PWRCTRL_H__ */

Annotation

• Immediate include surface: `linux/notifier.h`, `linux/workqueue.h`.
• Detected declarations: `struct device`, `struct device_link`, `struct pci_pwrctrl`, `function pci_pwrctrl_create_devices`, `function pci_pwrctrl_destroy_devices`, `function pci_pwrctrl_power_off_devices`.
• Atlas domain: Core OS / Core Kernel Interface.
• Implementation status: source 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.