1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
---|---|
2 | /* |
3 | * AMD Platform Security Processor (PSP) Dynamic Boost Control support |
4 | * |
5 | * Copyright (C) 2023 Advanced Micro Devices, Inc. |
6 | * |
7 | * Author: Mario Limonciello <mario.limonciello@amd.com> |
8 | */ |
9 | |
10 | #ifndef __DBC_H__ |
11 | #define __DBC_H__ |
12 | |
13 | #include <uapi/linux/psp-dbc.h> |
14 | |
15 | #include <linux/device.h> |
16 | #include <linux/miscdevice.h> |
17 | #include <linux/psp-platform-access.h> |
18 | |
19 | #include "psp-dev.h" |
20 | |
21 | struct psp_dbc_device { |
22 | struct device *dev; |
23 | struct psp_device *psp; |
24 | |
25 | union dbc_buffer *mbox; |
26 | |
27 | struct mutex ioctl_mutex; |
28 | |
29 | struct miscdevice char_dev; |
30 | |
31 | /* used to abstract communication path */ |
32 | bool use_ext; |
33 | u32 header_size; |
34 | u32 *payload_size; |
35 | u32 *result; |
36 | void *payload; |
37 | }; |
38 | |
39 | union dbc_buffer { |
40 | struct psp_request pa_req; |
41 | struct psp_ext_request ext_req; |
42 | }; |
43 | |
44 | void dbc_dev_destroy(struct psp_device *psp); |
45 | int dbc_dev_init(struct psp_device *psp); |
46 | |
47 | #endif /* __DBC_H */ |
48 |