| /* |
| * 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 */ |