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 25extern struct psp_device *psp_master; 26 27typedef void (*psp_irq_handler_t)(int, void *, unsigned int); 28 29struct 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 50void psp_set_sev_irq_handler(struct psp_device *psp, psp_irq_handler_t handler, 51 void *data); 52void psp_clear_sev_irq_handler(struct psp_device *psp); 53 54void psp_set_tee_irq_handler(struct psp_device *psp, psp_irq_handler_t handler, 55 void *data); 56void psp_clear_tee_irq_handler(struct psp_device *psp); 57 58struct psp_device *psp_get_master_device(void); 59 60#endif /* __PSP_DEV_H */ 61