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freebsd
GitHub Repository: freebsd/freebsd-src
 Path: blob/main/sys/riscv/include/metadata.h
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/*-

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 * SPDX-License-Identifier: BSD-2-Clause

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 *

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 * Copyright (c) 2020 Mitchell Horne <[email protected]>

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 *

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 * Redistribution and use in source and binary forms, with or without

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 * modification, are permitted provided that the following conditions

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 * are met:

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 * 1. Redistributions of source code must retain the above copyright

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 *    notice, this list of conditions and the following disclaimer.

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 * 2. Redistributions in binary form must reproduce the above copyright

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 *    notice, this list of conditions and the following disclaimer in the

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 *    documentation and/or other materials provided with the distribution.

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 *

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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND

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 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

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 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

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 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE

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 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL

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 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS

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 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

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 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT

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 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY

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 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF

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 * SUCH DAMAGE.

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 */

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#ifndef _MACHINE_METADATA_H_

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#define	_MACHINE_METADATA_H_

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#define	MODINFOMD_DTBP		0x1001

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#define	MODINFOMD_EFI_MAP	0x1002

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#define	MODINFOMD_EFI_FB	0x1003

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#define	MODINFOMD_BOOT_HARTID	0x1004

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/*

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 * This is not the same as the UEFI standard EFI_MEMORY_ATTRIBUTES_TABLE, though

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 * memory_size / descritpr_size entries of EFI_MEMORY_DESCRIPTORS follow this table

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 * starting at a 16-byte alignment.

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 */

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struct efi_map_header {

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	size_t		memory_size;		/* Numnber of bytes that follow */

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	size_t		descriptor_size;	/* Size of each EFI_MEMORY_DESCRIPTOR */

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	uint32_t	descriptor_version;	/* Currently '1' */

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};

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/*

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 * Placeholder for now

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 */

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struct efi_fb {

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	uint64_t	fb_addr;

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	uint64_t	fb_size;

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	uint32_t	fb_height;

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	uint32_t	fb_width;

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	uint32_t	fb_stride;

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	uint32_t	fb_mask_red;

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	uint32_t	fb_mask_green;

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	uint32_t	fb_mask_blue;

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	uint32_t	fb_mask_reserved;

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};

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#endif /* !_MACHINE_METADATA_H_ */

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