drivers/cpuidle/governors/gov.h

File Facts

System

Linux kernel

Corpus path

drivers/cpuidle/governors/gov.h

Extension

.h

Size

570 bytes

Lines

20

Domain

Driver Families

Bucket

drivers/cpuidle

Inferred role

Driver Families: implementation source

Status

source 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.

Dependency Surface

• No C-style include directives detected by the generator.

Detected Declarations

• No top-level syscall, struct, function, initcall, or export declaration detected by the generator.

Annotated Snippet

#ifndef __CPUIDLE_GOVERNOR_H
#define __CPUIDLE_GOVERNOR_H

/*
 * Idle state target residency threshold used for deciding whether or not to
 * check the time till the closest expected timer event.
 */
#define RESIDENCY_THRESHOLD_NS	(15 * NSEC_PER_USEC)
/*
 * If the closest timer is in this range, the governor idle state selection need
 * not be adjusted after the scheduler tick has been stopped.
 */
#define SAFE_TIMER_RANGE_NS	(2 * TICK_NSEC)

#endif /* __CPUIDLE_GOVERNOR_H */

Annotation

• Atlas domain: Driver Families / drivers/cpuidle.
• 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.