source: mainline/arch/mips32/src/mm/page.c@ 328f2934

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since 328f2934 was 328f2934, checked in by Sergey Bondari <bondari@…>, 20 years ago

Buddy allocator for physical memory complete implementation.
Tested on IA32, AMD64, MIPS32. RWLock Test #5 is not passed.
NOTE: Other architectures could be broken (but should not be)

  • Property mode set to 100644
File size: 1.8 KB
RevLine 
[f761f1eb]1/*
[178ec7b]2 * Copyright (C) 2003-2004 Jakub Jermar
[f761f1eb]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#include <arch/types.h>
[a1a03f9]30#include <arch/mm/page.h>
31#include <arch/mm/frame.h>
32#include <mm/frame.h>
[f761f1eb]33#include <mm/page.h>
[9c0a9b3]34#include <memstr.h>
[a1a03f9]35
36pte_t *PTL0 = NULL;
37
38void page_arch_init(void)
39{
40 __address ptl0;
41
[328f2934]42 ptl0 = frame_alloc(FRAME_KA | FRAME_PANIC, 0);
[a1a03f9]43 memsetb(ptl0, FRAME_SIZE, 0);
44
45 SET_PTL0_ADDRESS(KA2PA(ptl0));
46}
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