aboutsummaryrefslogtreecommitdiff
path: root/arch/h8300/include/asm/segment.h
diff options
context:
space:
mode:
authorH. Peter Anvin <hpa@zytor.com>2008-09-04 09:04:45 -0700
committerH. Peter Anvin <hpa@zytor.com>2008-09-04 09:04:45 -0700
commitfe47784ba5cbb6b713c013e046859946789b45e4 (patch)
tree6384958d55e29be0d2eb8ae78fa437c10636d8d6 /arch/h8300/include/asm/segment.h
parent83b8e28b14d63db928cb39e5c5ed2a548246bd71 (diff)
parentaf2e1f276ff08f17192411ea3b71c13a758dfe12 (diff)
Merge branch 'x86/cpu' into x86/xsave
Conflicts: arch/x86/kernel/cpu/feature_names.c include/asm-x86/cpufeature.h
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 00000000000..b79a82d0f99
--- /dev/null
+++ b/arch/h8300/include/asm/segment.h
@@ -0,0 +1,49 @@
+#ifndef _H8300_SEGMENT_H
+#define _H8300_SEGMENT_H
+
+/* define constants */
+#define USER_DATA (1)
+#ifndef __USER_DS
+#define __USER_DS (USER_DATA)
+#endif
+#define USER_PROGRAM (2)
+#define SUPER_DATA (3)
+#ifndef __KERNEL_DS
+#define __KERNEL_DS (SUPER_DATA)
+#endif
+#define SUPER_PROGRAM (4)
+
+#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 /* _H8300_SEGMENT_H */