ad01a984f5
In preparation for adding a new PSP device ID that uses different register offsets, add support to the PSP version data for register offset values. And then update the code to use these new register offset values. Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com> Acked-by: Gary R Hook <gary.hook@amd.com> Reviewed-by: Brijesh Singh <brijesh.singh@amd.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
71 lines
1.5 KiB
C
71 lines
1.5 KiB
C
/*
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* AMD Platform Security Processor (PSP) interface driver
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*
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* Copyright (C) 2017 Advanced Micro Devices, Inc.
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*
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* Author: Brijesh Singh <brijesh.singh@amd.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#ifndef __PSP_DEV_H__
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#define __PSP_DEV_H__
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#include <linux/device.h>
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#include <linux/pci.h>
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#include <linux/spinlock.h>
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#include <linux/mutex.h>
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#include <linux/list.h>
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#include <linux/wait.h>
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#include <linux/dmapool.h>
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#include <linux/hw_random.h>
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#include <linux/bitops.h>
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#include <linux/interrupt.h>
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#include <linux/irqreturn.h>
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#include <linux/dmaengine.h>
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#include <linux/psp-sev.h>
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#include <linux/miscdevice.h>
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#include "sp-dev.h"
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#define PSP_CMD_COMPLETE BIT(1)
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#define PSP_CMDRESP_CMD_SHIFT 16
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#define PSP_CMDRESP_IOC BIT(0)
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#define PSP_CMDRESP_RESP BIT(31)
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#define PSP_CMDRESP_ERR_MASK 0xffff
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#define MAX_PSP_NAME_LEN 16
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struct sev_misc_dev {
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struct kref refcount;
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struct miscdevice misc;
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};
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struct psp_device {
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struct list_head entry;
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struct psp_vdata *vdata;
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char name[MAX_PSP_NAME_LEN];
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struct device *dev;
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struct sp_device *sp;
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void __iomem *io_regs;
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int sev_state;
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unsigned int sev_int_rcvd;
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wait_queue_head_t sev_int_queue;
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struct sev_misc_dev *sev_misc;
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struct sev_user_data_status status_cmd_buf;
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struct sev_data_init init_cmd_buf;
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u8 api_major;
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u8 api_minor;
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u8 build;
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};
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#endif /* __PSP_DEV_H */
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