patch-2.3.16 linux/include/asm-sh/addrspace.h

• Lines: 42
• Date: Mon Aug 30 18:12:59 1999
• Orig file: v2.3.15/linux/include/asm-sh/addrspace.h
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.3.15/linux/include/asm-sh/addrspace.h linux/include/asm-sh/addrspace.h
@@ -0,0 +1,41 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 1996 by Ralf Baechle
+ * Copyright (C) 1999 by Niibe Yutaka
+ *
+ * Defitions for the address spaces of the SH CPUs.
+ */
+#ifndef __ASM_SH_ADDRSPACE_H
+#define __ASM_SH_ADDRSPACE_H
+
+/*
+ * Memory segments (32bit kernel mode addresses)
+ */
+#define KUSEG                   0x00000000
+#define KSEG0                   0x80000000
+#define KSEG1                   0xa0000000
+#define KSEG2                   0xc0000000
+#define KSEG3                   0xe0000000
+
+/*
+ * Returns the kernel segment base of a given address
+ */
+#define KSEGX(a)                (((unsigned long)(a)) & 0xe0000000)
+
+/*
+ * Returns the physical address of a KSEG0/KSEG1 address
+ */
+#define PHYSADDR(a)		(((unsigned long)(a)) & 0x1fffffff)
+
+/*
+ * Map an address to a certain kernel segment
+ */
+#define KSEG0ADDR(a)		((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) | KSEG0))
+#define KSEG1ADDR(a)		((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) | KSEG1))
+#define KSEG2ADDR(a)		((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) | KSEG2))
+#define KSEG3ADDR(a)		((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) | KSEG3))
+
+#endif /* __ASM_SH_ADDRSPACE_H */