1/* $NetBSD: fdt_memory.h,v 1.2 2022/11/04 10:51:16 jmcneill Exp $ */
2
3/*-
4 * Copyright (c) 2018 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Jared McNeill <jmcneill@invisible.ca>.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#ifndef _DEV_FDT_FDT_MEMORY_H_
33#define _DEV_FDT_FDT_MEMORY_H_
34
35#include "opt_fdt.h"
36
37#ifndef FDT_MEMORY_RANGES
38#define FDT_MEMORY_RANGES 256
39#endif
40
41struct fdt_memory {
42	uint64_t	start;
43	uint64_t	end;
44};
45
46void	fdt_memory_init(void);
47void	fdt_memory_get(uint64_t *, uint64_t *);
48void	fdt_memory_add_range(uint64_t, uint64_t);
49void	fdt_memory_remove_range(uint64_t, uint64_t);
50void	fdt_memory_remove_reserved(uint64_t, uint64_t);
51
52void	fdt_memory_foreach(void (*)(const struct fdt_memory *, void *), void *);
53
54#endif /* _DEV_FDT_FDT_MEMORY_H_ */
55