/* * AMD Platform Security Processor (PSP) interface driver * * Copyright (C) 2017 Advanced Micro Devices, Inc. * * Author: Brijesh Singh <brijesh.singh@amd.com> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ #ifndef __PSP_DEV_H__ #define __PSP_DEV_H__ #include <linux/device.h> #include <linux/pci.h> #include <linux/spinlock.h> #include <linux/mutex.h> #include <linux/list.h> #include <linux/wait.h> #include <linux/dmapool.h> #include <linux/hw_random.h> #include <linux/bitops.h> #include <linux/interrupt.h> #include <linux/irqreturn.h> #include <linux/dmaengine.h> #include <linux/psp-sev.h> #include <linux/miscdevice.h> #include "sp-dev.h" #define PSP_CMD_COMPLETE BIT(1) #define PSP_CMDRESP_CMD_SHIFT 16 #define PSP_CMDRESP_IOC BIT(0) #define PSP_CMDRESP_RESP BIT(31) #define PSP_CMDRESP_ERR_MASK 0xffff #define MAX_PSP_NAME_LEN 16 struct sev_misc_dev { struct kref refcount; struct miscdevice misc; }; struct psp_device { struct list_head entry; struct psp_vdata *vdata; char name[MAX_PSP_NAME_LEN]; struct device *dev; struct sp_device *sp; void __iomem *io_regs; int sev_state; unsigned int sev_int_rcvd; wait_queue_head_t sev_int_queue; struct sev_misc_dev *sev_misc; struct sev_user_data_status status_cmd_buf; struct sev_data_init init_cmd_buf; u8 api_major; u8 api_minor; u8 build; }; #endif /* __PSP_DEV_H */