source: mainline/arch/sparc64/include/mm/page.h@ d53aba3f

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since d53aba3f was 031e264, checked in by Jakub Jermar <jakub@…>, 20 years ago

Fix cpu_init(): frame_alloc() can return 0 as the valid address of block of frames. Do not signal error.

sparc64 work.
Reorganize kernel vs. userspace memory layout.
Add panic_printf().
Turn dummy() into nop rather than into infinite loop.

  • Property mode set to 100644
File size: 2.8 KB
Line 
1/*
2 * Copyright (C) 2005 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 __sparc64_PAGE_H__
30#define __sparc64_PAGE_H__
31
32#include <mm/page.h>
33#include <arch/mm/frame.h>
34#include <arch/types.h>
35
36#define PAGE_SIZE FRAME_SIZE
37
38#define KA2PA(x) ((__address) (x))
39#define PA2KA(x) ((__address) (x))
40
41#define PTL0_INDEX_ARCH(vaddr) 0
42#define PTL1_INDEX_ARCH(vaddr) 0
43#define PTL2_INDEX_ARCH(vaddr) 0
44#define PTL3_INDEX_ARCH(vaddr) 0
45
46#define GET_PTL0_ADDRESS_ARCH() 0
47#define SET_PTL0_ADDRESS_ARCH(ptl0)
48
49#define GET_PTL1_ADDRESS_ARCH(ptl0, i) ((pte_t *) 0)
50#define GET_PTL2_ADDRESS_ARCH(ptl1, i) ((pte_t *) 0)
51#define GET_PTL3_ADDRESS_ARCH(ptl2, i) ((pte_t *) 0)
52#define GET_FRAME_ADDRESS_ARCH(ptl3, i) ((pte_t *) 0)
53
54#define SET_PTL1_ADDRESS_ARCH(ptl0, i, a)
55#define SET_PTL2_ADDRESS_ARCH(ptl1, i, a)
56#define SET_PTL3_ADDRESS_ARCH(ptl2, i, a)
57#define SET_FRAME_ADDRESS_ARCH(ptl3, i, a)
58
59#define GET_PTL1_FLAGS_ARCH(ptl0, i) 0
60#define GET_PTL2_FLAGS_ARCH(ptl1, i) 0
61#define GET_PTL3_FLAGS_ARCH(ptl2, i) 0
62#define GET_FRAME_FLAGS_ARCH(ptl3, i) 0
63
64#define SET_PTL1_FLAGS_ARCH(ptl0, i, x)
65#define SET_PTL2_FLAGS_ARCH(ptl1, i, x)
66#define SET_PTL3_FLAGS_ARCH(ptl2, i, x)
67#define SET_FRAME_FLAGS_ARCH(ptl3, i, x)
68
69union page_address {
70 __address address;
71 struct {
72 __u64 vpn : 51; /**< Virtual Page Number. */
73 unsigned offset : 13; /**< Offset. */
74 } __attribute__ ((packed));
75};
76
77typedef union page_address page_address_t;
78
79extern void page_arch_init(void);
80
81#endif
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