Adding upstream version 5.10.209.upstream/5.10.209upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 40 insertions, 0 deletions

diff --git a/arch/h8300/include/asm/segment.h b/arch/h8300/include/asm/segment.h
new file mode 100644
index 000000000..37950725d
--- /dev/null
+++ b/arch/h8300/include/asm/segment.h
@@ -0,0 +1,40 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#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;
+}
+
+#define uaccess_kernel()	(get_fs().seg == KERNEL_DS.seg)
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* _H8300_SEGMENT_H */