1/* SPDX-License-Identifier: MIT */
 2/*
 3 * Copyright © 2023 Intel Corporation
 4 */
 5
 6#ifndef _ABI_GSC_PROXY_COMMANDS_ABI_H
 7#define _ABI_GSC_PROXY_COMMANDS_ABI_H
 8
 9#include <linux/types.h>
10
11/* Heci client ID for proxy commands */
12#define HECI_MEADDRESS_PROXY 10
13
14/* FW-defined proxy header */
15struct xe_gsc_proxy_header {
16	/*
17	 * hdr:
18	 * Bits 0-7: type of the proxy message (see enum xe_gsc_proxy_type)
19	 * Bits 8-15: rsvd
20	 * Bits 16-31: length in bytes of the payload following the proxy header
21	 */
22	u32 hdr;
23#define GSC_PROXY_TYPE		 GENMASK(7, 0)
24#define GSC_PROXY_PAYLOAD_LENGTH GENMASK(31, 16)
25
26	u32 source;		/* Source of the Proxy message */
27	u32 destination;	/* Destination of the Proxy message */
28#define GSC_PROXY_ADDRESSING_KMD  0x10000
29#define GSC_PROXY_ADDRESSING_GSC  0x20000
30#define GSC_PROXY_ADDRESSING_CSME 0x30000
31
32	u32 status;		/* Command status */
33} __packed;
34
35/* FW-defined proxy types */
36enum xe_gsc_proxy_type {
37	GSC_PROXY_MSG_TYPE_PROXY_INVALID = 0,
38	GSC_PROXY_MSG_TYPE_PROXY_QUERY = 1,
39	GSC_PROXY_MSG_TYPE_PROXY_PAYLOAD = 2,
40	GSC_PROXY_MSG_TYPE_PROXY_END = 3,
41	GSC_PROXY_MSG_TYPE_PROXY_NOTIFICATION = 4,
42};
43
44#endif