include/boot/balloc.h

0001 /*
0002  * Copyright (c) 2006 Jakub Jermar
0003  * All rights reserved.
0004  *
0005  * Redistribution and use in source and binary forms, with or without
0006  * modification, are permitted provided that the following conditions
0007  * are met:
0008  *
0009  * - Redistributions of source code must retain the above copyright
0010  *   notice, this list of conditions and the following disclaimer.
0011  * - Redistributions in binary form must reproduce the above copyright
0012  *   notice, this list of conditions and the following disclaimer in the
0013  *   documentation and/or other materials provided with the distribution.
0014  * - The name of the author may not be used to endorse or promote products
0015  *   derived from this software without specific prior written permission.
0016  *
0017  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
0018  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
0019  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
0020  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
0021  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
0022  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
0023  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
0024  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
0025  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
0026  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
0027  */
0028
0029 /*
0030  * Modifications are made to compile for RTEMS. Move BALLOC_MAX_SIZE from
0031  * asm.h to here.
0032  *
0033  */
0034
0035
0036 #ifndef BOOT_BALLOC_H_
0037 #define BOOT_BALLOC_H_
0038
0039 #include <boot/types.h>
0040
0041 #define BALLOC_MAX_SIZE  (128 * 1024)
0042
0043 typedef struct {
0044     uintptr_t base;
0045     size_t size;
0046 } ballocs_t;
0047
0048 extern void balloc_init(ballocs_t *ball, uintptr_t base, uintptr_t kernel_base);
0049 extern void *balloc(size_t size, size_t alignment);
0050 extern void *balloc_rebase(void *ptr);
0051
0052 #endif