aboutsummaryrefslogtreecommitdiffstats
path: root/arch/h8300/include/asm/segment.h
diff options
context:
space:
mode:
authorIngo Molnar <mingo@elte.hu>2008-09-05 12:56:57 -0400
committerIngo Molnar <mingo@elte.hu>2008-09-05 12:56:57 -0400
commit616ad8c44281c0c6711a72b560e01ec335ff27e0 (patch)
tree0a20453ffedb09db6fb41a0c2208ccc2c7751d3a /arch/h8300/include/asm/segment.h
parent99809963c99e1ed868d9ebeb4a5e7ee1cbe0309f (diff)
parentb380b0d4f7dffcc235c0facefa537d4655619101 (diff)
Merge branch 'linus' into x86/defconfig
Diffstat (limited to 'arch/h8300/include/asm/segment.h')
-rw-r--r--arch/h8300/include/asm/segment.h49
1 files changed, 49 insertions, 0 deletions
diff --git a/arch/h8300/include/asm/segment.h b/arch/h8300/include/asm/segment.h
new file mode 100644
index 000000000000..b79a82d0f99d
--- /dev/null
+++ b/arch/h8300/include/asm/segment.h
@@ -0,0 +1,49 @@
1#ifndef _H8300_SEGMENT_H
2#define _H8300_SEGMENT_H
3
4/* define constants */
5#define USER_DATA (1)
6#ifndef __USER_DS
7#define __USER_DS (USER_DATA)
8#endif
9#define USER_PROGRAM (2)
10#define SUPER_DATA (3)
11#ifndef __KERNEL_DS
12#define __KERNEL_DS (SUPER_DATA)
13#endif
14#define SUPER_PROGRAM (4)
15
16#ifndef __ASSEMBLY__
17
18typedef struct {
19 unsigned long seg;
20} mm_segment_t;
21
22#define MAKE_MM_SEG(s) ((mm_segment_t) { (s) })
23#define USER_DS MAKE_MM_SEG(__USER_DS)
24#define KERNEL_DS MAKE_MM_SEG(__KERNEL_DS)
25
26/*
27 * Get/set the SFC/DFC registers for MOVES instructions
28 */
29
30static inline mm_segment_t get_fs(void)
31{
32 return USER_DS;
33}
34
35static inline mm_segment_t get_ds(void)
36{
37 /* return the supervisor data space code */
38 return KERNEL_DS;
39}
40
41static inline void set_fs(mm_segment_t val)
42{
43}
44
45#define segment_eq(a,b) ((a).seg == (b).seg)
46
47#endif /* __ASSEMBLY__ */
48
49#endif /* _H8300_SEGMENT_H */