include/cxl/features.h

File Facts

System

Linux kernel

Corpus path

include/cxl/features.h

Extension

.h

Size

2445 bytes

Lines

89

Domain

Repository Root And Misc

Bucket

include

Inferred role

Repository Root And Misc: implementation source

Status

source implementation candidate

Why This File Exists

Top-level or miscellaneous repository surface. Use this as map coverage unless a later manual pass promotes the file into a deeper subsystem dossier.

• Top-level or miscellaneous repository surface. Use this as map coverage unless a later manual pass promotes the file into a deeper subsystem dossier.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/uuid.h
• linux/fwctl.h
• uapi/cxl/features.h

Detected Declarations

• struct cxl_features_state
• struct cxl_feat_entries
• struct cxl_mailbox
• struct cxl_memdev
• enum cxl_features_capability
• function devm_cxl_setup_features
• function devm_cxl_setup_fwctl

Annotated Snippet

struct cxl_features_state {
	struct cxl_dev_state *cxlds;
	struct cxl_feat_entries {
		int num_features;
		int num_user_features;
		struct cxl_feat_entry ent[] __counted_by(num_features);
	} *entries;
};

struct cxl_mailbox;
struct cxl_memdev;
#ifdef CONFIG_CXL_FEATURES
struct cxl_features_state *to_cxlfs(struct cxl_dev_state *cxlds);
int devm_cxl_setup_features(struct cxl_dev_state *cxlds);
int devm_cxl_setup_fwctl(struct device *host, struct cxl_memdev *cxlmd);
#else
static inline struct cxl_features_state *to_cxlfs(struct cxl_dev_state *cxlds)
{
	return NULL;
}

static inline int devm_cxl_setup_features(struct cxl_dev_state *cxlds)
{
	return -EOPNOTSUPP;
}

static inline int devm_cxl_setup_fwctl(struct device *host,
				       struct cxl_memdev *cxlmd)
{
	return -EOPNOTSUPP;
}
#endif

#endif

Annotation

• Immediate include surface: `linux/uuid.h`, `linux/fwctl.h`, `uapi/cxl/features.h`.
• Detected declarations: `struct cxl_features_state`, `struct cxl_feat_entries`, `struct cxl_mailbox`, `struct cxl_memdev`, `enum cxl_features_capability`, `function devm_cxl_setup_features`, `function devm_cxl_setup_fwctl`.
• Atlas domain: Repository Root And Misc / include.
• 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.