drivers/crypto/ccp/psp-dev.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * AMD Platform Security Processor (PSP) interface driver
   4  *
   5  * Copyright (C) 2017-2019 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/list.h>
  15 #include <linux/bits.h>
  16 #include <linux/interrupt.h>
  17
  18 #include "sp-dev.h"
  19
  20 #define PSP_CMDRESP_RESP                BIT(31)
  21 #define PSP_CMDRESP_ERR_MASK            0xffff
  22
  23 #define MAX_PSP_NAME_LEN                16
  24
  25 extern struct psp_device *psp_master;
  26
  27 typedef void (*psp_irq_handler_t)(int, void *, unsigned int);
  28
  29 struct psp_device {
  30         struct list_head entry;
  31
  32         struct psp_vdata *vdata;
  33         char name[MAX_PSP_NAME_LEN];
  34
  35         struct device *dev;
  36         struct sp_device *sp;
  37
  38         void __iomem *io_regs;
  39
  40         psp_irq_handler_t sev_irq_handler;
  41         void *sev_irq_data;
  42
  43         psp_irq_handler_t tee_irq_handler;
  44         void *tee_irq_data;
  45
  46         void *sev_data;
  47         void *tee_data;
  48 };
  49
  50 void psp_set_sev_irq_handler(struct psp_device *psp, psp_irq_handler_t handler,
  51                              void *data);
  52 void psp_clear_sev_irq_handler(struct psp_device *psp);
  53
  54 void psp_set_tee_irq_handler(struct psp_device *psp, psp_irq_handler_t handler,
  55                              void *data);
  56 void psp_clear_tee_irq_handler(struct psp_device *psp);
  57
  58 struct psp_device *psp_get_master_device(void);
  59
  60 #endif /* __PSP_DEV_H */