source: mainline/kernel/arch/sparc64/include/arch/mm/sun4v/page.h@ 6ecf5b8

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since 6ecf5b8 was 6ecf5b8, checked in by Vojtech Horky <vojtechhorky@…>, 13 years ago

Prevent compile-time symlinks in kernel

So far, architecture specific headers for kernel were in
kernel/arch/$ARCH/include directory.
From kernel sources, they were referenced as arch/header.h.

For example, file kernel/arch/$ARCH/include/whatever.h
was included with <arch/whatever.h>.

To allow that, a symbolic link with name `arch' pointing
to the correct `include/' was created during compilation.

This change adds one arch/ directory and instead of
creating a symbolic link for each compilation, -I flag
was added to the compiler (the header mentioned above would
now reside in kernel/arch/$ARCH/include/arch/whatever.h).

The same goes for genarch/ includes.

This change would be followed by similar changes in userspace
and ABI. To overall goal is to simplify job of documenation
generators or IDEs that might have problems with the dynamically
created symbolic links.
  • Property mode set to 100644
File size: 2.2 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/** @addtogroup sparc64mm
30 * @{
31 */
32/** @file
33 */
34
35#ifndef KERN_sparc64_sun4v_PAGE_H_
36#define KERN_sparc64_sun4v_PAGE_H_
37
38#include <arch/mm/frame.h>
39
40#define MMU_PAGE_WIDTH MMU_FRAME_WIDTH
41#define MMU_PAGE_SIZE MMU_FRAME_SIZE
42
43#define PAGE_WIDTH FRAME_WIDTH
44#define PAGE_SIZE FRAME_SIZE
45
46#define MMU_PAGES_PER_PAGE (1 << (PAGE_WIDTH - MMU_PAGE_WIDTH))
47
48#ifndef __ASM__
49
50#include <arch/interrupt.h>
51
52extern uintptr_t physmem_base;
53
54#define KA2PA(x) (((uintptr_t) (x)) + physmem_base)
55#define PA2KA(x) (((uintptr_t) (x)) - physmem_base)
56
57typedef union {
58 uintptr_t address;
59 struct {
60 uint64_t vpn : 51; /**< Virtual Page Number. */
61 unsigned offset : 13; /**< Offset. */
62 } __attribute__ ((packed));
63} page_address_t;
64
65extern void page_arch_init(void);
66
67#endif /* !def __ASM__ */
68
69#endif
70
71/** @}
72 */
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