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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* AMD Platform Security Processor (PSP) interface driver
*
* Copyright (C) 2017-2018 Advanced Micro Devices, Inc.
*
* Author: Brijesh Singh <brijesh.singh@amd.com>
*/
#ifndef __PSP_DEV_H__
#define __PSP_DEV_H__
#include <linux/device.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 */
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