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Diffstat (limited to 'arch/microblaze/include/asm/segment.h')
-rw-r--r-- | arch/microblaze/include/asm/segment.h | 49 |
1 files changed, 0 insertions, 49 deletions
diff --git a/arch/microblaze/include/asm/segment.h b/arch/microblaze/include/asm/segment.h deleted file mode 100644 index 0e7102c3fb11..000000000000 --- a/arch/microblaze/include/asm/segment.h +++ /dev/null | |||
@@ -1,49 +0,0 @@ | |||
1 | /* | ||
2 | * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu> | ||
3 | * Copyright (C) 2008-2009 PetaLogix | ||
4 | * Copyright (C) 2006 Atmark Techno, Inc. | ||
5 | * | ||
6 | * This file is subject to the terms and conditions of the GNU General Public | ||
7 | * License. See the file "COPYING" in the main directory of this archive | ||
8 | * for more details. | ||
9 | */ | ||
10 | |||
11 | #ifndef _ASM_MICROBLAZE_SEGMENT_H | ||
12 | #define _ASM_MICROBLAZE_SEGMENT_H | ||
13 | |||
14 | # ifndef __ASSEMBLY__ | ||
15 | |||
16 | typedef struct { | ||
17 | unsigned long seg; | ||
18 | } mm_segment_t; | ||
19 | |||
20 | /* | ||
21 | * On Microblaze the fs value is actually the top of the corresponding | ||
22 | * address space. | ||
23 | * | ||
24 | * The fs value determines whether argument validity checking should be | ||
25 | * performed or not. If get_fs() == USER_DS, checking is performed, with | ||
26 | * get_fs() == KERNEL_DS, checking is bypassed. | ||
27 | * | ||
28 | * For historical reasons, these macros are grossly misnamed. | ||
29 | * | ||
30 | * For non-MMU arch like Microblaze, KERNEL_DS and USER_DS is equal. | ||
31 | */ | ||
32 | # define MAKE_MM_SEG(s) ((mm_segment_t) { (s) }) | ||
33 | |||
34 | # ifndef CONFIG_MMU | ||
35 | # define KERNEL_DS MAKE_MM_SEG(0) | ||
36 | # define USER_DS KERNEL_DS | ||
37 | # else | ||
38 | # define KERNEL_DS MAKE_MM_SEG(0xFFFFFFFF) | ||
39 | # define USER_DS MAKE_MM_SEG(TASK_SIZE - 1) | ||
40 | # endif | ||
41 | |||
42 | # define get_ds() (KERNEL_DS) | ||
43 | # define get_fs() (current_thread_info()->addr_limit) | ||
44 | # define set_fs(val) (current_thread_info()->addr_limit = (val)) | ||
45 | |||
46 | # define segment_eq(a, b) ((a).seg == (b).seg) | ||
47 | |||
48 | # endif /* __ASSEMBLY__ */ | ||
49 | #endif /* _ASM_MICROBLAZE_SEGMENT_H */ | ||