1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3  * Copyright (C) 2023-2024, Advanced Micro Devices, Inc.
4  */
5 
6 #ifndef _AMDXDNA_MAILBOX_HELPER_H
7 #define _AMDXDNA_MAILBOX_HELPER_H
8 
9 #define TX_TIMEOUT 2000 /* milliseconds */
10 #define RX_TIMEOUT 5000 /* milliseconds */
11 
12 struct amdxdna_dev;
13 
14 struct xdna_notify {
15 	struct completion       comp;
16 	u32			*data;
17 	size_t			size;
18 	int			error;
19 };
20 
21 #define DECLARE_XDNA_MSG_COMMON(name, op, status)			\
22 	struct name##_req	req = { 0 };				\
23 	struct name##_resp	resp = { status	};			\
24 	struct xdna_notify	hdl = {					\
25 		.error = 0,						\
26 		.data = (u32 *)&resp,					\
27 		.size = sizeof(resp),					\
28 		.comp = COMPLETION_INITIALIZER_ONSTACK(hdl.comp),	\
29 	};								\
30 	struct xdna_mailbox_msg msg = {					\
31 		.send_data = (u8 *)&req,				\
32 		.send_size = sizeof(req),				\
33 		.handle = &hdl,						\
34 		.opcode = op,						\
35 		.notify_cb = xdna_msg_cb,				\
36 	}
37 
38 int xdna_msg_cb(void *handle, const u32 *data, size_t size);
39 int xdna_send_msg_wait(struct amdxdna_dev *xdna, struct mailbox_channel *chann,
40 		       struct xdna_mailbox_msg *msg);
41 
42 #endif /* _AMDXDNA_MAILBOX_HELPER_H */
43