aboutsummaryrefslogtreecommitdiff
path: root/arch/m68knommu/include/asm/segment.h
diff options
context:
space:
mode:
authorIngo Molnar <[email protected]>2008-08-14 12:19:59 +0200
committerIngo Molnar <[email protected]>2008-08-14 12:19:59 +0200
commit8d7ccaa545490cdffdfaff0842436a8dd85cf47b (patch)
tree8129b5907161bc6ae26deb3645ce1e280c5e1f51 /arch/m68knommu/include/asm/segment.h
parentb2139aa0eec330c711c5a279db361e5ef1178e78 (diff)
parent30a2f3c60a84092c8084dfe788b710f8d0768cd4 (diff)
Merge commit 'v2.6.27-rc3' into x86/prototypes
Conflicts: include/asm-x86/dma-mapping.h Signed-off-by: Ingo Molnar <[email protected]>
Diffstat (limited to 'arch/m68knommu/include/asm/segment.h')
-rw-r--r--arch/m68knommu/include/asm/segment.h51
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 */