| 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 |