source: mainline/kernel/arch/ppc32/src/mm/as.c

Last change on this file was c5429fe, checked in by Jakub Jermar <jakub@…>, 7 years ago

Disambiguate architecture specific doxygroups

  • Property mode set to 100644
File size: 2.1 KB
Line 
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/** @addtogroup kernel_ppc32_mm
30 * @{
31 */
32/** @file
33 */
34
35#include <arch/mm/as.h>
36#include <genarch/mm/as_pt.h>
37#include <genarch/mm/page_pt.h>
38#include <genarch/mm/asid_fifo.h>
39#include <arch.h>
40
41/** Architecture dependent address space init. */
42void as_arch_init(void)
43{
44 as_operations = &as_pt_operations;
45 asid_fifo_init();
46}
47
48/** Install address space.
49 *
50 * Install ASID.
51 *
52 * @param as Address space structure.
53 *
54 */
55void as_install_arch(as_t *as)
56{
57 uint32_t sr;
58
59 /* Lower 2 GB, user and supervisor access */
60 for (sr = 0; sr < 8; sr++)
61 sr_set(0x6000, as->asid, sr);
62
63 /* Upper 2 GB, only supervisor access */
64 for (sr = 8; sr < 16; sr++)
65 sr_set(0x4000, as->asid, sr);
66}
67
68/** @}
69 */
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