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1/*
2 * include/linux/firmware-map.h:
3 * Copyright (C) 2008 SUSE LINUX Products GmbH
4 * by Bernhard Walle <bwalle@suse.de>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License v2.0 as published by
8 * the Free Software Foundation
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 */
16#ifndef _LINUX_FIRMWARE_MAP_H
17#define _LINUX_FIRMWARE_MAP_H
18
19#include <linux/list.h>
20#include <linux/kobject.h>
21
22/*
23 * provide a dummy interface if CONFIG_FIRMWARE_MEMMAP is disabled
24 */
25#ifdef CONFIG_FIRMWARE_MEMMAP
26
27/**
28 * Adds a firmware mapping entry. This function uses kmalloc() for memory
29 * allocation. Use firmware_map_add_early() if you want to use the bootmem
30 * allocator.
31 *
32 * That function must be called before late_initcall.
33 *
34 * @start: Start of the memory range.
35 * @end: End of the memory range (inclusive).
36 * @type: Type of the memory range.
37 *
38 * Returns 0 on success, or -ENOMEM if no memory could be allocated.
39 */
40int firmware_map_add(resource_size_t start, resource_size_t end,
41 const char *type);
42
43/**
44 * Adds a firmware mapping entry. This function uses the bootmem allocator
45 * for memory allocation. Use firmware_map_add() if you want to use kmalloc().
46 *
47 * That function must be called before late_initcall.
48 *
49 * @start: Start of the memory range.
50 * @end: End of the memory range (inclusive).
51 * @type: Type of the memory range.
52 *
53 * Returns 0 on success, or -ENOMEM if no memory could be allocated.
54 */
55int firmware_map_add_early(resource_size_t start, resource_size_t end,
56 const char *type);
57
58#else /* CONFIG_FIRMWARE_MEMMAP */
59
60static inline int firmware_map_add(resource_size_t start, resource_size_t end,
61 const char *type)
62{
63 return 0;
64}
65
66static inline int firmware_map_add_early(resource_size_t start,
67 resource_size_t end, const char *type)
68{
69 return 0;
70}
71
72#endif /* CONFIG_FIRMWARE_MEMMAP */
73
74#endif /* _LINUX_FIRMWARE_MAP_H */