1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3  * AMD Platform Security Processor (PSP) Platform Access interface
4  *
5  * Copyright (C) 2023 Advanced Micro Devices, Inc.
6  *
7  * Author: Mario Limonciello <mario.limonciello@amd.com>
8  */
9 
10 #ifndef __PSP_PLATFORM_ACCESS_H__
11 #define __PSP_PLATFORM_ACCESS_H__
12 
13 #include <linux/device.h>
14 #include <linux/miscdevice.h>
15 #include <linux/mutex.h>
16 #include <linux/psp-platform-access.h>
17 
18 #include "psp-dev.h"
19 
20 struct psp_platform_access_device {
21 	struct device *dev;
22 	struct psp_device *psp;
23 
24 	struct platform_access_vdata *vdata;
25 
26 	struct mutex mailbox_mutex;
27 	struct mutex doorbell_mutex;
28 
29 	void *platform_access_data;
30 };
31 
32 void platform_access_dev_destroy(struct psp_device *psp);
33 int platform_access_dev_init(struct psp_device *psp);
34 
35 #endif /* __PSP_PLATFORM_ACCESS_H__ */
36