m68k: merge the mmu and non-mmu versions of segment.h

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From: Linux Kernel Mailing List
Date: Friday, April 3, 2009 - 11:02 am

Gitweb:     http://git.kernel.org/linus/4892242a47fe21724ee6a98d71d9c512716ea89d
Commit:     4892242a47fe21724ee6a98d71d9c512716ea89d
Parent:     872065e78c0dff5a384128ea198b34f72e9d5c3a
Author:     Greg Ungerer <gerg@uclinux.org>
AuthorDate: Fri Feb 6 14:14:29 2009 +1000
Committer:  Greg Ungerer <gerg@uclinux.org>
CommitDate: Tue Mar 24 15:17:44 2009 +1000

    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>
---
 arch/m68k/include/asm/segment.h    |   64 ++++++++++++++++++++++++++++++++++--
 arch/m68k/include/asm/segment_mm.h |   57 --------------------------------
 arch/m68k/include/asm/segment_no.h |   51 ----------------------------
 3 files changed, 61 insertions(+), 111 deletions(-)

diff --git a/arch/m68k/include/asm/segment.h b/arch/m68k/include/asm/segment.h
index 82583bc..ee95921 100644
--- a/arch/m68k/include/asm/segment.h
+++ b/arch/m68k/include/asm/segment.h
@@ -1,5 +1,63 @@
-#ifdef __uClinux__
-#include "segment_no.h"
+#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)
+{
+#ifdef CONFIG_MMU
+	mm_segment_t _v;
+	__asm__ ("movec %/dfc,%0":"=r" (_v.seg):);
+
+	return _v;
 #else
-#include "segment_mm.h"
+	return USER_DS;
+#endif
+}
+
+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)
+{
+#ifdef CONFIG_MMU
+	__asm__ __volatile__ ("movec %0,%/sfc\n\t"
+			      "movec %0,%/dfc\n\t"
+			      : /* no outputs */ : "r" (val.seg) : "memory");
 #endif
+}
+
+#define segment_eq(a,b)	((a).seg == (b).seg)
+
+#endif /* __ASSEMBLY__ */
+
+#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 7b0b2d3..0000000
--- a/arch/m68k/include/asm/segment_mm.h
+++ /dev/null
@@ -1,57 +0,0 @@
-#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)
-{
-	mm_segment_t _v;
-	__asm__ ("movec %/dfc,%0":"=r" (_v.seg):);
-
-	return _v;
-}
-
-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)
-{
-	__asm__ __volatile__ ("movec %0,%/sfc\n\t"
-			      "movec %0,%/dfc\n\t"
-			      : /* no outputs */ : "r" (val.seg) : "memory");
-}
-
-#define segment_eq(a,b)	((a).seg == (b).seg)
-
-#endif /* __ASSEMBLY__ */
-
-#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 42318eb..0000000
--- a/arch/m68k/include/asm/segment_no.h
+++ /dev/null
@@ -1,51 +0,0 @@
-#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 */
--
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m68k: merge the mmu and non-mmu versions of segment.h, Linux Kernel Mailing ..., (Fri Apr 3, 11:02 am)