diff options
author | Ingo Molnar <mingo@elte.hu> | 2008-07-29 11:54:24 +0200 |
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committer | Ingo Molnar <mingo@elte.hu> | 2008-07-29 11:54:24 +0200 |
commit | 3825c9e8d01e4310c40a3903a354c433c32a7b6f (patch) | |
tree | 87c94a8076bbb38bd2cf20ab9bc23d6f74f6a0a8 /include/asm-sh/segment.h | |
parent | 5d7b605245b1aa1a9cd6549b1f57d69273eb0c37 (diff) | |
parent | 6e86841d05f371b5b9b86ce76c02aaee83352298 (diff) |
Merge commit 'v2.6.27-rc1' into x86/microcode
Conflicts:
arch/x86/kernel/microcode.c
Manual resolutions:
arch/x86/kernel/microcode_amd.c
arch/x86/kernel/microcode_intel.c
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/asm-sh/segment.h')
-rw-r--r-- | include/asm-sh/segment.h | 30 |
1 files changed, 29 insertions, 1 deletions
diff --git a/include/asm-sh/segment.h b/include/asm-sh/segment.h index e417eab4c7d7..5e2725f4ac49 100644 --- a/include/asm-sh/segment.h +++ b/include/asm-sh/segment.h @@ -1,6 +1,34 @@ #ifndef __ASM_SH_SEGMENT_H #define __ASM_SH_SEGMENT_H -/* Only here because we have some old header files that expect it.. */ +#ifndef __ASSEMBLY__ +typedef struct { + unsigned long seg; +} mm_segment_t; + +#define MAKE_MM_SEG(s) ((mm_segment_t) { (s) }) + +/* + * The fs value determines whether argument validity checking should be + * performed or not. If get_fs() == USER_DS, checking is performed, with + * get_fs() == KERNEL_DS, checking is bypassed. + * + * For historical reasons, these macros are grossly misnamed. + */ +#define KERNEL_DS MAKE_MM_SEG(0xFFFFFFFFUL) +#ifdef CONFIG_MMU +#define USER_DS MAKE_MM_SEG(PAGE_OFFSET) +#else +#define USER_DS KERNEL_DS +#endif + +#define segment_eq(a,b) ((a).seg == (b).seg) + +#define get_ds() (KERNEL_DS) + +#define get_fs() (current_thread_info()->addr_limit) +#define set_fs(x) (current_thread_info()->addr_limit = (x)) + +#endif /* __ASSEMBLY__ */ #endif /* __ASM_SH_SEGMENT_H */ |