2023-06-23 21:49:55 +08:00
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/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* AMD Platform Security Processor (PSP) Dynamic Boost Control support
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*
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* Copyright (C) 2023 Advanced Micro Devices, Inc.
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*
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* Author: Mario Limonciello <mario.limonciello@amd.com>
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*/
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#ifndef __DBC_H__
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#define __DBC_H__
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#include <uapi/linux/psp-dbc.h>
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#include <linux/device.h>
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#include <linux/miscdevice.h>
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#include <linux/psp-platform-access.h>
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#include "psp-dev.h"
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struct psp_dbc_device {
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struct device *dev;
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2023-09-08 02:48:46 +08:00
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struct psp_device *psp;
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2023-06-23 21:49:55 +08:00
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union dbc_buffer *mbox;
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struct mutex ioctl_mutex;
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struct miscdevice char_dev;
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2023-09-08 02:48:44 +08:00
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/* used to abstract communication path */
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bool use_ext;
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u32 header_size;
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u32 *payload_size;
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u32 *result;
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void *payload;
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};
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2023-06-23 21:49:57 +08:00
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2023-06-23 21:49:55 +08:00
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union dbc_buffer {
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2023-09-08 02:48:44 +08:00
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struct psp_request pa_req;
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2023-09-08 02:48:46 +08:00
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struct psp_ext_request ext_req;
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2023-06-23 21:49:55 +08:00
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};
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void dbc_dev_destroy(struct psp_device *psp);
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int dbc_dev_init(struct psp_device *psp);
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#endif /* __DBC_H */
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