root/drivers/crypto/ccp/psp-dev.h

INCLUDED FROM

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * AMD Platform Security Processor (PSP) interface driver
   4  *
   5  * Copyright (C) 2017-2018 Advanced Micro Devices, Inc.
   6  *
   7  * Author: Brijesh Singh <brijesh.singh@amd.com>
   8  */
   9 
  10 #ifndef __PSP_DEV_H__
  11 #define __PSP_DEV_H__
  12 
  13 #include <linux/device.h>
  14 #include <linux/spinlock.h>
  15 #include <linux/mutex.h>
  16 #include <linux/list.h>
  17 #include <linux/wait.h>
  18 #include <linux/dmapool.h>
  19 #include <linux/hw_random.h>
  20 #include <linux/bitops.h>
  21 #include <linux/interrupt.h>
  22 #include <linux/irqreturn.h>
  23 #include <linux/dmaengine.h>
  24 #include <linux/psp-sev.h>
  25 #include <linux/miscdevice.h>
  26 
  27 #include "sp-dev.h"
  28 
  29 #define PSP_CMD_COMPLETE                BIT(1)
  30 
  31 #define PSP_CMDRESP_CMD_SHIFT           16
  32 #define PSP_CMDRESP_IOC                 BIT(0)
  33 #define PSP_CMDRESP_RESP                BIT(31)
  34 #define PSP_CMDRESP_ERR_MASK            0xffff
  35 
  36 #define MAX_PSP_NAME_LEN                16
  37 
  38 struct sev_misc_dev {
  39         struct kref refcount;
  40         struct miscdevice misc;
  41 };
  42 
  43 struct psp_device {
  44         struct list_head entry;
  45 
  46         struct psp_vdata *vdata;
  47         char name[MAX_PSP_NAME_LEN];
  48 
  49         struct device *dev;
  50         struct sp_device *sp;
  51 
  52         void __iomem *io_regs;
  53 
  54         int sev_state;
  55         unsigned int sev_int_rcvd;
  56         wait_queue_head_t sev_int_queue;
  57         struct sev_misc_dev *sev_misc;
  58         struct sev_user_data_status status_cmd_buf;
  59         struct sev_data_init init_cmd_buf;
  60 
  61         u8 api_major;
  62         u8 api_minor;
  63         u8 build;
  64 };
  65 
  66 #endif /* __PSP_DEV_H */