diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-frv/mem-layout.h |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'include/asm-frv/mem-layout.h')
-rw-r--r-- | include/asm-frv/mem-layout.h | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/include/asm-frv/mem-layout.h b/include/asm-frv/mem-layout.h new file mode 100644 index 000000000000..a025dd4514e7 --- /dev/null +++ b/include/asm-frv/mem-layout.h | |||
@@ -0,0 +1,78 @@ | |||
1 | /* mem-layout.h: memory layout | ||
2 | * | ||
3 | * Copyright (C) 2004 Red Hat, Inc. All Rights Reserved. | ||
4 | * Written by David Howells (dhowells@redhat.com) | ||
5 | * | ||
6 | * This program is free software; you can redistribute it and/or | ||
7 | * modify it under the terms of the GNU General Public License | ||
8 | * as published by the Free Software Foundation; either version | ||
9 | * 2 of the License, or (at your option) any later version. | ||
10 | */ | ||
11 | |||
12 | #ifndef _ASM_MEM_LAYOUT_H | ||
13 | #define _ASM_MEM_LAYOUT_H | ||
14 | |||
15 | #ifndef __ASSEMBLY__ | ||
16 | #define __UL(X) ((unsigned long) (X)) | ||
17 | #else | ||
18 | #define __UL(X) (X) | ||
19 | #endif | ||
20 | |||
21 | /* | ||
22 | * PAGE_SHIFT determines the page size | ||
23 | */ | ||
24 | #define PAGE_SHIFT 14 | ||
25 | |||
26 | #ifndef __ASSEMBLY__ | ||
27 | #define PAGE_SIZE (1UL << PAGE_SHIFT) | ||
28 | #else | ||
29 | #define PAGE_SIZE (1 << PAGE_SHIFT) | ||
30 | #endif | ||
31 | |||
32 | #define PAGE_MASK (~(PAGE_SIZE-1)) | ||
33 | |||
34 | /*****************************************************************************/ | ||
35 | /* | ||
36 | * virtual memory layout from kernel's point of view | ||
37 | */ | ||
38 | #define PAGE_OFFSET ((unsigned long) &__page_offset) | ||
39 | |||
40 | #ifdef CONFIG_MMU | ||
41 | |||
42 | /* see Documentation/fujitsu/frv/mmu-layout.txt */ | ||
43 | #define KERNEL_LOWMEM_START __UL(0xc0000000) | ||
44 | #define KERNEL_LOWMEM_END __UL(0xd0000000) | ||
45 | #define VMALLOC_START __UL(0xd0000000) | ||
46 | #define VMALLOC_END __UL(0xd8000000) | ||
47 | #define PKMAP_BASE __UL(0xd8000000) | ||
48 | #define PKMAP_END __UL(0xdc000000) | ||
49 | #define KMAP_ATOMIC_SECONDARY_FRAME __UL(0xdc000000) | ||
50 | #define KMAP_ATOMIC_PRIMARY_FRAME __UL(0xdd000000) | ||
51 | |||
52 | #endif | ||
53 | |||
54 | #define KERNEL_IO_START __UL(0xe0000000) | ||
55 | |||
56 | |||
57 | /*****************************************************************************/ | ||
58 | /* | ||
59 | * memory layout from userspace's point of view | ||
60 | */ | ||
61 | #define BRK_BASE __UL(2 * 1024 * 1024 + PAGE_SIZE) | ||
62 | #define STACK_TOP __UL(2 * 1024 * 1024) | ||
63 | |||
64 | /* userspace process size */ | ||
65 | #ifdef CONFIG_MMU | ||
66 | #define TASK_SIZE (PAGE_OFFSET) | ||
67 | #else | ||
68 | #define TASK_SIZE __UL(0xFFFFFFFFUL) | ||
69 | #endif | ||
70 | |||
71 | /* base of area at which unspecified mmaps will start */ | ||
72 | #ifdef CONFIG_BINFMT_ELF_FDPIC | ||
73 | #define TASK_UNMAPPED_BASE __UL(16 * 1024 * 1024) | ||
74 | #else | ||
75 | #define TASK_UNMAPPED_BASE __UL(TASK_SIZE / 3) | ||
76 | #endif | ||
77 | |||
78 | #endif /* _ASM_MEM_LAYOUT_H */ | ||