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authorGreg Ungerer <gerg@uclinux.org>2009-02-05 23:14:29 -0500
committerGreg Ungerer <gerg@uclinux.org>2009-03-24 01:17:44 -0400
commit4892242a47fe21724ee6a98d71d9c512716ea89d (patch)
treee18ec0dfffbf1c0a70aa0553911190b732b27ee0 /arch
parent872065e78c0dff5a384128ea198b34f72e9d5c3a (diff)
m68k: merge the mmu and non-mmu versions of segment.h
Trivial merge of the mmu and non-mmu version of segment.h. Signed-off-by: Greg Ungerer <gerg@uclinux.org> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/m68k/include/asm/segment.h64
-rw-r--r--arch/m68k/include/asm/segment_mm.h57
-rw-r--r--arch/m68k/include/asm/segment_no.h51
3 files changed, 61 insertions, 111 deletions
diff --git a/arch/m68k/include/asm/segment.h b/arch/m68k/include/asm/segment.h
index 82583bc004bd..ee959219fdfe 100644
--- a/arch/m68k/include/asm/segment.h
+++ b/arch/m68k/include/asm/segment.h
@@ -1,5 +1,63 @@
1#ifdef __uClinux__ 1#ifndef _M68K_SEGMENT_H
2#include "segment_no.h" 2#define _M68K_SEGMENT_H
3
4/* define constants */
5/* Address spaces (FC0-FC2) */
6#define USER_DATA (1)
7#ifndef __USER_DS
8#define __USER_DS (USER_DATA)
9#endif
10#define USER_PROGRAM (2)
11#define SUPER_DATA (5)
12#ifndef __KERNEL_DS
13#define __KERNEL_DS (SUPER_DATA)
14#endif
15#define SUPER_PROGRAM (6)
16#define CPU_SPACE (7)
17
18#ifndef __ASSEMBLY__
19
20typedef struct {
21 unsigned long seg;
22} mm_segment_t;
23
24#define MAKE_MM_SEG(s) ((mm_segment_t) { (s) })
25#define USER_DS MAKE_MM_SEG(__USER_DS)
26#define KERNEL_DS MAKE_MM_SEG(__KERNEL_DS)
27
28/*
29 * Get/set the SFC/DFC registers for MOVES instructions
30 */
31
32static inline mm_segment_t get_fs(void)
33{
34#ifdef CONFIG_MMU
35 mm_segment_t _v;
36 __asm__ ("movec %/dfc,%0":"=r" (_v.seg):);
37
38 return _v;
3#else 39#else
4#include "segment_mm.h" 40 return USER_DS;
41#endif
42}
43
44static inline mm_segment_t get_ds(void)
45{
46 /* return the supervisor data space code */
47 return KERNEL_DS;
48}
49
50static inline void set_fs(mm_segment_t val)
51{
52#ifdef CONFIG_MMU
53 __asm__ __volatile__ ("movec %0,%/sfc\n\t"
54 "movec %0,%/dfc\n\t"
55 : /* no outputs */ : "r" (val.seg) : "memory");
5#endif 56#endif
57}
58
59#define segment_eq(a,b) ((a).seg == (b).seg)
60
61#endif /* __ASSEMBLY__ */
62
63#endif /* _M68K_SEGMENT_H */
diff --git a/arch/m68k/include/asm/segment_mm.h b/arch/m68k/include/asm/segment_mm.h
deleted file mode 100644
index 7b0b2d3127f9..000000000000
--- a/arch/m68k/include/asm/segment_mm.h
+++ /dev/null
@@ -1,57 +0,0 @@
1#ifndef _M68K_SEGMENT_H
2#define _M68K_SEGMENT_H
3
4/* define constants */
5/* Address spaces (FC0-FC2) */
6#define USER_DATA (1)
7#ifndef __USER_DS
8#define __USER_DS (USER_DATA)
9#endif
10#define USER_PROGRAM (2)
11#define SUPER_DATA (5)
12#ifndef __KERNEL_DS
13#define __KERNEL_DS (SUPER_DATA)
14#endif
15#define SUPER_PROGRAM (6)
16#define CPU_SPACE (7)
17
18#ifndef __ASSEMBLY__
19
20typedef struct {
21 unsigned long seg;
22} mm_segment_t;
23
24#define MAKE_MM_SEG(s) ((mm_segment_t) { (s) })
25#define USER_DS MAKE_MM_SEG(__USER_DS)
26#define KERNEL_DS MAKE_MM_SEG(__KERNEL_DS)
27
28/*
29 * Get/set the SFC/DFC registers for MOVES instructions
30 */
31
32static inline mm_segment_t get_fs(void)
33{
34 mm_segment_t _v;
35 __asm__ ("movec %/dfc,%0":"=r" (_v.seg):);
36
37 return _v;
38}
39
40static inline mm_segment_t get_ds(void)
41{
42 /* return the supervisor data space code */
43 return KERNEL_DS;
44}
45
46static inline void set_fs(mm_segment_t val)
47{
48 __asm__ __volatile__ ("movec %0,%/sfc\n\t"
49 "movec %0,%/dfc\n\t"
50 : /* no outputs */ : "r" (val.seg) : "memory");
51}
52
53#define segment_eq(a,b) ((a).seg == (b).seg)
54
55#endif /* __ASSEMBLY__ */
56
57#endif /* _M68K_SEGMENT_H */
diff --git a/arch/m68k/include/asm/segment_no.h b/arch/m68k/include/asm/segment_no.h
deleted file mode 100644
index 42318ebec7ec..000000000000
--- a/arch/m68k/include/asm/segment_no.h
+++ /dev/null
@@ -1,51 +0,0 @@
1#ifndef _M68K_SEGMENT_H
2#define _M68K_SEGMENT_H
3
4/* define constants */
5/* Address spaces (FC0-FC2) */
6#define USER_DATA (1)
7#ifndef __USER_DS
8#define __USER_DS (USER_DATA)
9#endif
10#define USER_PROGRAM (2)
11#define SUPER_DATA (5)
12#ifndef __KERNEL_DS
13#define __KERNEL_DS (SUPER_DATA)
14#endif
15#define SUPER_PROGRAM (6)
16#define CPU_SPACE (7)
17
18#ifndef __ASSEMBLY__
19
20typedef struct {
21 unsigned long seg;
22} mm_segment_t;
23
24#define MAKE_MM_SEG(s) ((mm_segment_t) { (s) })
25#define USER_DS MAKE_MM_SEG(__USER_DS)
26#define KERNEL_DS MAKE_MM_SEG(__KERNEL_DS)
27
28/*
29 * Get/set the SFC/DFC registers for MOVES instructions
30 */
31
32static inline mm_segment_t get_fs(void)
33{
34 return USER_DS;
35}
36
37static inline mm_segment_t get_ds(void)
38{
39 /* return the supervisor data space code */
40 return KERNEL_DS;
41}
42
43static inline void set_fs(mm_segment_t val)
44{
45}
46
47#define segment_eq(a,b) ((a).seg == (b).seg)
48
49#endif /* __ASSEMBLY__ */
50
51#endif /* _M68K_SEGMENT_H */