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 1/* SPDX-License-Identifier: MIT */
 2/*
 3 * Copyright © 2023 Intel Corporation
 4 */
 5
 6#ifndef _XE_GUC_RELAY_H_
 7#define _XE_GUC_RELAY_H_
 8
 9#include <linux/types.h>
10#include <linux/errno.h>
11
12struct xe_guc_relay;
13
14int xe_guc_relay_init(struct xe_guc_relay *relay);
15
16int xe_guc_relay_send_to_pf(struct xe_guc_relay *relay,
17			    const u32 *msg, u32 len, u32 *buf, u32 buf_size);
18
19int xe_guc_relay_process_guc2vf(struct xe_guc_relay *relay, const u32 *msg, u32 len);
20
21#ifdef CONFIG_PCI_IOV
22int xe_guc_relay_send_to_vf(struct xe_guc_relay *relay, u32 target,
23			    const u32 *msg, u32 len, u32 *buf, u32 buf_size);
24int xe_guc_relay_process_guc2pf(struct xe_guc_relay *relay, const u32 *msg, u32 len);
25#else
26static inline int xe_guc_relay_send_to_vf(struct xe_guc_relay *relay, u32 target,
27					  const u32 *msg, u32 len, u32 *buf, u32 buf_size)
28{
29	return -ENODEV;
30}
31static inline int xe_guc_relay_process_guc2pf(struct xe_guc_relay *relay, const u32 *msg, u32 len)
32{
33	return -ENODEV;
34}
35#endif
36
37#endif