| #ifndef __ASM_SH_SEGMENT_H |
| #define __ASM_SH_SEGMENT_H |
| #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) |
| #define USER_DS MAKE_MM_SEG(PAGE_OFFSET) |
| #define USER_DS KERNEL_DS |
| #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 */ |