source: mainline/kernel/arch/mips32/src/mm/page.c@ e49e234

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since e49e234 was e49e234, checked in by Martin Decky <martin@…>, 16 years ago

kernel memory management revisited (phase 2): map physical memory according to zones

  • ia32: register reserved and ACPI zones
  • pareas are now used only for mapping of present physical memory (hw_area() is gone)
  • firmware zones and physical addresses outside any zones are allowed to be mapped generally
  • fix nasty antient bug in zones_insert_zone()
  • Property mode set to 100644
File size: 1.9 KB
Line 
1/*
2 * Copyright (c) 2003-2004 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/** @addtogroup mips32mm
30 * @{
31 */
32/** @file
33 */
34
35#include <arch/mm/page.h>
36#include <genarch/mm/page_pt.h>
37#include <mm/page.h>
38#include <mm/frame.h>
39
40void page_arch_init(void)
41{
42 page_mapping_operations = &pt_mapping_operations;
43}
44
45/** Map device into kernel space
46 * - on mips, all devices are already mapped into kernel space,
47 * translate the physical address to uncached area
48 */
49uintptr_t hw_map(uintptr_t physaddr, size_t size)
50{
51 return physaddr + 0xa0000000;
52}
53
54/** @}
55 */
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