67 lines
1.3 KiB
C
67 lines
1.3 KiB
C
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/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* AMD Platform Security Processor (PSP) interface driver
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*
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* Copyright (C) 2017-2018 Advanced Micro Devices, Inc.
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*
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* Author: Brijesh Singh <brijesh.singh@amd.com>
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*/
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#ifndef __PSP_DEV_H__
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#define __PSP_DEV_H__
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#include <linux/device.h>
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#include <linux/spinlock.h>
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#include <linux/mutex.h>
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#include <linux/list.h>
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#include <linux/wait.h>
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#include <linux/dmapool.h>
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#include <linux/hw_random.h>
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#include <linux/bitops.h>
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#include <linux/interrupt.h>
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#include <linux/irqreturn.h>
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#include <linux/dmaengine.h>
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#include <linux/psp-sev.h>
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#include <linux/miscdevice.h>
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#include "sp-dev.h"
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#define PSP_CMD_COMPLETE BIT(1)
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#define PSP_CMDRESP_CMD_SHIFT 16
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#define PSP_CMDRESP_IOC BIT(0)
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#define PSP_CMDRESP_RESP BIT(31)
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#define PSP_CMDRESP_ERR_MASK 0xffff
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#define MAX_PSP_NAME_LEN 16
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struct sev_misc_dev {
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struct kref refcount;
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struct miscdevice misc;
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};
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struct psp_device {
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struct list_head entry;
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struct psp_vdata *vdata;
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char name[MAX_PSP_NAME_LEN];
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struct device *dev;
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struct sp_device *sp;
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void __iomem *io_regs;
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int sev_state;
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unsigned int sev_int_rcvd;
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wait_queue_head_t sev_int_queue;
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struct sev_misc_dev *sev_misc;
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struct sev_user_data_status status_cmd_buf;
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struct sev_data_init init_cmd_buf;
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u8 api_major;
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u8 api_minor;
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u8 build;
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};
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#endif /* __PSP_DEV_H */
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