drivers/cxl/pmu.h

File Facts

System

Linux kernel

Corpus path

drivers/cxl/pmu.h

Extension

.h

Size

656 bytes

Lines

29

Domain

Driver Families

Bucket

drivers/cxl

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.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/device.h

Detected Declarations

• struct cxl_pmu
• struct cxl_pmu_regs
• enum cxl_pmu_type

Annotated Snippet

struct cxl_pmu {
	struct device dev;
	void __iomem *base;
	int assoc_id;
	int index;
	enum cxl_pmu_type type;
};

#define to_cxl_pmu(dev) container_of(dev, struct cxl_pmu, dev)
struct cxl_pmu_regs;
int devm_cxl_pmu_add(struct device *parent, struct cxl_pmu_regs *regs,
		     int assoc_id, int idx, enum cxl_pmu_type type);

#endif

Annotation

• Immediate include surface: `linux/device.h`.
• Detected declarations: `struct cxl_pmu`, `struct cxl_pmu_regs`, `enum cxl_pmu_type`.
• Atlas domain: Driver Families / drivers/cxl.
• 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.