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author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-08-07 18:07:33 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-08-07 18:07:33 -0700 |
commit | 3d8cd0c5d75c424f986c0602dc26579fbb7c8080 (patch) | |
tree | 03c61f81542f6c34e32eb5e0dfc3d34668f88fdd /arch/m68knommu/include/asm/segment.h | |
parent | 4c514a5ad1314b872e3185dabaf105c81d39d7e8 (diff) | |
parent | 58750139001bae11a1f9b074f3a9c774fecf5ba8 (diff) | |
download | talos-obmc-linux-3d8cd0c5d75c424f986c0602dc26579fbb7c8080.tar.gz talos-obmc-linux-3d8cd0c5d75c424f986c0602dc26579fbb7c8080.zip |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu:
Move all of include/asm-m68knommu to arch/m68knommu/include/asm.
Diffstat (limited to 'arch/m68knommu/include/asm/segment.h')
-rw-r--r-- | arch/m68knommu/include/asm/segment.h | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/arch/m68knommu/include/asm/segment.h b/arch/m68knommu/include/asm/segment.h new file mode 100644 index 000000000000..42318ebec7ec --- /dev/null +++ b/arch/m68knommu/include/asm/segment.h @@ -0,0 +1,51 @@ +#ifndef _M68K_SEGMENT_H +#define _M68K_SEGMENT_H + +/* define constants */ +/* Address spaces (FC0-FC2) */ +#define USER_DATA (1) +#ifndef __USER_DS +#define __USER_DS (USER_DATA) +#endif +#define USER_PROGRAM (2) +#define SUPER_DATA (5) +#ifndef __KERNEL_DS +#define __KERNEL_DS (SUPER_DATA) +#endif +#define SUPER_PROGRAM (6) +#define CPU_SPACE (7) + +#ifndef __ASSEMBLY__ + +typedef struct { + unsigned long seg; +} mm_segment_t; + +#define MAKE_MM_SEG(s) ((mm_segment_t) { (s) }) +#define USER_DS MAKE_MM_SEG(__USER_DS) +#define KERNEL_DS MAKE_MM_SEG(__KERNEL_DS) + +/* + * Get/set the SFC/DFC registers for MOVES instructions + */ + +static inline mm_segment_t get_fs(void) +{ + return USER_DS; +} + +static inline mm_segment_t get_ds(void) +{ + /* return the supervisor data space code */ + return KERNEL_DS; +} + +static inline void set_fs(mm_segment_t val) +{ +} + +#define segment_eq(a,b) ((a).seg == (b).seg) + +#endif /* __ASSEMBLY__ */ + +#endif /* _M68K_SEGMENT_H */ |