drivers/accel/amdxdna/amdxdna_mailbox_helper.h

Source file repositories/reference/linux-study-clean/drivers/accel/amdxdna/amdxdna_mailbox_helper.h

File Facts

System
Linux kernel
Corpus path
drivers/accel/amdxdna/amdxdna_mailbox_helper.h
Extension
.h
Size
1165 bytes
Lines
45
Domain
Driver Families
Bucket
drivers/accel
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.

Dependency Surface

Detected Declarations

Annotated Snippet

struct xdna_notify {
	struct completion       comp;
	u32			*data;
	size_t			size;
	int			error;
	u32			*status;
};

#define DECLARE_XDNA_MSG_COMMON(name, op, s)				\
	struct name##_req	req = { 0 };				\
	struct name##_resp	resp = { .status = s };			\
	struct xdna_notify	hdl = {					\
		.error = 0,						\
		.data = (u32 *)&resp,					\
		.size = sizeof(resp),					\
		.comp = COMPLETION_INITIALIZER_ONSTACK(hdl.comp),	\
		.status = (u32 *)&resp.status,				\
	};								\
	struct xdna_mailbox_msg msg = {					\
		.send_data = (u8 *)&req,				\
		.send_size = sizeof(req),				\
		.handle = &hdl,						\
		.opcode = op,						\
		.notify_cb = xdna_msg_cb,				\
	}

int xdna_msg_cb(void *handle, void __iomem *data, size_t size);
int xdna_send_msg_wait(struct amdxdna_dev *xdna, struct mailbox_channel *chann,
		       struct xdna_mailbox_msg *msg);

#endif /* _AMDXDNA_MAILBOX_HELPER_H */

Annotation

Implementation Notes