include/linux/soc/qcom/smem_state.h

File Facts

System

Linux kernel

Corpus path

include/linux/soc/qcom/smem_state.h

Extension

.h

Size

1604 bytes

Lines

63

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/err.h

Detected Declarations

• struct device_node
• struct qcom_smem_state
• struct qcom_smem_state_ops
• function qcom_smem_state_put
• function qcom_smem_state_unregister

Annotated Snippet

struct qcom_smem_state_ops {
	int (*update_bits)(void *, u32, u32);
};

#ifdef CONFIG_QCOM_SMEM_STATE

struct qcom_smem_state *qcom_smem_state_get(struct device *dev, const char *con_id, unsigned *bit);
struct qcom_smem_state *devm_qcom_smem_state_get(struct device *dev, const char *con_id, unsigned *bit);
void qcom_smem_state_put(struct qcom_smem_state *);

int qcom_smem_state_update_bits(struct qcom_smem_state *state, u32 mask, u32 value);

struct qcom_smem_state *qcom_smem_state_register(struct device_node *of_node, const struct qcom_smem_state_ops *ops, void *data);
void qcom_smem_state_unregister(struct qcom_smem_state *state);

#else

static inline struct qcom_smem_state *qcom_smem_state_get(struct device *dev,
	const char *con_id, unsigned *bit)
{
	return ERR_PTR(-EINVAL);
}

static inline struct qcom_smem_state *devm_qcom_smem_state_get(struct device *dev,
							       const char *con_id,
							       unsigned *bit)
{
	return ERR_PTR(-EINVAL);
}

static inline void qcom_smem_state_put(struct qcom_smem_state *state)
{
}

static inline int qcom_smem_state_update_bits(struct qcom_smem_state *state,
	u32 mask, u32 value)
{
	return -EINVAL;
}

static inline struct qcom_smem_state *qcom_smem_state_register(struct device_node *of_node,
	const struct qcom_smem_state_ops *ops, void *data)
{
	return ERR_PTR(-EINVAL);
}

static inline void qcom_smem_state_unregister(struct qcom_smem_state *state)
{
}

#endif

#endif

Annotation

• Immediate include surface: `linux/err.h`.
• Detected declarations: `struct device_node`, `struct qcom_smem_state`, `struct qcom_smem_state_ops`, `function qcom_smem_state_put`, `function qcom_smem_state_unregister`.
• 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.