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