Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) /* SPDX-License-Identifier: GPL-2.0-only */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  * AMD Platform Security Processor (PSP) interface driver
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5)  * Copyright (C) 2017-2019 Advanced Micro Devices, Inc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7)  * Author: Brijesh Singh <brijesh.singh@amd.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #ifndef __SEV_DEV_H__
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #define __SEV_DEV_H__
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/spinlock.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/mutex.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/list.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <linux/wait.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <linux/dmapool.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <linux/hw_random.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include <linux/bitops.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include <linux/interrupt.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #include <linux/irqreturn.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #include <linux/dmaengine.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #include <linux/psp-sev.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #include <linux/miscdevice.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #include <linux/capability.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) #define SEV_CMD_COMPLETE		BIT(1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) #define SEV_CMDRESP_CMD_SHIFT		16
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) #define SEV_CMDRESP_IOC			BIT(0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) struct sev_misc_dev {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 	struct kref refcount;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 	struct miscdevice misc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) struct sev_device {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 	struct device *dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 	struct psp_device *psp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 	void __iomem *io_regs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 	struct sev_vdata *vdata;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) 	int state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) 	unsigned int int_rcvd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) 	wait_queue_head_t int_queue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) 	struct sev_misc_dev *misc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) 	struct sev_user_data_status status_cmd_buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) 	struct sev_data_init init_cmd_buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) 	u8 api_major;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) 	u8 api_minor;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) 	u8 build;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) int sev_dev_init(struct psp_device *psp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) void sev_dev_destroy(struct psp_device *psp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) void sev_pci_init(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) void sev_pci_exit(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) #endif /* __SEV_DEV_H */