source: mainline/kernel/genarch/include/ofw/ofw_tree.h@ 61e90dd

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since 61e90dd was 61e90dd, checked in by Jakub Jermar <jakub@…>, 19 years ago

Add balloc() (a.k.a boot allocator):

  • balloc() only needs to know how to allocate memory.
  • Memory allocated via balloc() is supposed to be passed to kernel and never freed by boot itself.
  • make kernel aware of boot allocations

More work on OFW device tree:

  • use balloc() to efficiently and safely allocate memory for the canonical copy of the device tree

sparc64 boot:

  • pass OFW device tree root node pointer to kernel
  • Property mode set to 100644
File size: 2.1 KB
RevLine 
[61e90dd]1/*
2 * Copyright (C) 2006 Jakub Jermar
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * - Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * - Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * - The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#ifndef KERN_OFW_TREE_H_
30#define KERN_OFW_TREE_H_
31
32#include <arch/types.h>
33
34#define OFW_TREE_PROPERTY_MAX_NAMELEN 32
35
36typedef struct ofw_tree_node ofw_tree_node_t;
37typedef struct ofw_tree_property ofw_tree_property_t;
38
39/** Memory representation of OpenFirmware device tree node. */
40struct ofw_tree_node {
41 ofw_tree_node_t *parent;
42 ofw_tree_node_t *peer;
43 ofw_tree_node_t *child;
44
45 unsigned properties; /**< Number of properties. */
46 ofw_tree_property_t *property;
47};
48
49/** Memory representation of OpenFirmware device tree node property. */
50struct ofw_tree_property {
51 char name[OFW_TREE_PROPERTY_MAX_NAMELEN];
52 size_t size;
53 void *value;
54};
55
56#endif
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