tools/power/cpupower/utils/helpers/bitmask.h

File Facts

System

Linux kernel

Corpus path

tools/power/cpupower/utils/helpers/bitmask.h

Extension

.h

Size

1103 bytes

Lines

35

Domain

Support Tooling And Documentation

Bucket

tools

Inferred role

Support Tooling And Documentation: implementation source

Status

source implementation candidate

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

• Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

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

Detected Declarations

• struct bitmask

Annotated Snippet

struct bitmask {
	unsigned int size;
	unsigned long *maskp;
};

struct bitmask *bitmask_alloc(unsigned int n);
void bitmask_free(struct bitmask *bmp);

struct bitmask *bitmask_setbit(struct bitmask *bmp, unsigned int i);
struct bitmask *bitmask_setall(struct bitmask *bmp);
struct bitmask *bitmask_clearall(struct bitmask *bmp);

unsigned int bitmask_first(const struct bitmask *bmp);
unsigned int bitmask_next(const struct bitmask *bmp, unsigned int i);
unsigned int bitmask_last(const struct bitmask *bmp);
int bitmask_isallclear(const struct bitmask *bmp);
int bitmask_isbitset(const struct bitmask *bmp, unsigned int i);

int bitmask_parselist(const char *buf, struct bitmask *bmp);
int bitmask_displaylist(char *buf, int len, const struct bitmask *bmp);



#endif /*__CPUPOWER_BITMASK__ */

Annotation

• Detected declarations: `struct bitmask`.
• Atlas domain: Support Tooling And Documentation / tools.
• 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.