arch/sparc/kernel/ds.c

Source file repositories/reference/linux-study-clean/arch/sparc/kernel/ds.c

File Facts

System
Linux kernel
Corpus path
arch/sparc/kernel/ds.c
Extension
.c
Size
26325 bytes
Lines
1273
Domain
Architecture Layer
Bucket
arch/sparc
Inferred role
Architecture Layer: implementation source
Status
source implementation candidate

Why This File Exists

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

Dependency Surface

Detected Declarations

Annotated Snippet

struct ds_msg_tag {
	__u32			type;
#define DS_INIT_REQ		0x00
#define DS_INIT_ACK		0x01
#define DS_INIT_NACK		0x02
#define DS_REG_REQ		0x03
#define DS_REG_ACK		0x04
#define DS_REG_NACK		0x05
#define DS_UNREG_REQ		0x06
#define DS_UNREG_ACK		0x07
#define DS_UNREG_NACK		0x08
#define DS_DATA			0x09
#define DS_NACK			0x0a

	__u32			len;
};

/* Result codes */
#define DS_OK			0x00
#define DS_REG_VER_NACK		0x01
#define DS_REG_DUP		0x02
#define DS_INV_HDL		0x03
#define DS_TYPE_UNKNOWN		0x04

struct ds_version {
	__u16			major;
	__u16			minor;
};

struct ds_ver_req {
	struct ds_msg_tag	tag;
	struct ds_version	ver;
};

struct ds_ver_ack {
	struct ds_msg_tag	tag;
	__u16			minor;
};

struct ds_ver_nack {
	struct ds_msg_tag	tag;
	__u16			major;
};

struct ds_reg_req {
	struct ds_msg_tag	tag;
	__u64			handle;
	__u16			major;
	__u16			minor;
	char			svc_id[];
};

struct ds_reg_ack {
	struct ds_msg_tag	tag;
	__u64			handle;
	__u16			minor;
};

struct ds_reg_nack {
	struct ds_msg_tag	tag;
	__u64			handle;
	__u16			major;
};

struct ds_unreg_req {
	struct ds_msg_tag	tag;
	__u64			handle;
};

struct ds_unreg_ack {
	struct ds_msg_tag	tag;
	__u64			handle;
};

struct ds_unreg_nack {
	struct ds_msg_tag	tag;
	__u64			handle;
};

struct ds_data {
	struct ds_msg_tag	tag;
	__u64			handle;
};

struct ds_data_nack {
	struct ds_msg_tag	tag;
	__u64			handle;
	__u64			result;
};

Annotation

Implementation Notes