1 files changed, 82 insertions, 0 deletions
diff --git a/include/asm-mips/addrspace.h b/include/asm-mips/addrspace.h
new file mode 100755
index 0000000..b8214b1
--- /dev/null
+++ b/include/asm-mips/addrspace.h
@@ -0,0 +1,82 @@
+/*
+ * 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) 2000 by Maciej W. Rozycki
+ *
+ * Defitions for the address spaces of the MIPS CPUs.
+ */
+#ifndef __ASM_MIPS_ADDRSPACE_H
+#define __ASM_MIPS_ADDRSPACE_H
+
+/*
+ * Memory segments (32bit kernel mode addresses)
+ */
+#define KUSEG			0x00000000
+#define KSEG0			0x80000000
+#define KSEG1			0xa0000000
+#define KSEG2			0xc0000000
+#define KSEG3			0xe0000000
+
+#define K0BASE	KSEG0
+
+/*
+ * Returns the kernel segment base of a given address
+ */
+#ifndef __ASSEMBLY__
+#define KSEGX(a)		(((unsigned long)(a)) & 0xe0000000)
+#else
+#define KSEGX(a)		((a) & 0xe0000000)
+#endif
+
+/*
+ * Returns the physical address of a KSEG0/KSEG1 address
+ */
+#ifndef __ASSEMBLY__
+#define PHYSADDR(a)		(((unsigned long)(a)) & 0x1fffffff)
+#else
+#define PHYSADDR(a)		((a) & 0x1fffffff)
+#endif
+
+/*
+ * Returns the uncached address of a sdram address
+ */
+#ifndef __ASSEMBLY__
+#if defined(CONFIG_AU1X00) || defined(CONFIG_TB0229)
+/* We use a 36 bit physical address map here and
+   cannot access physical memory directly from core */
+#define UNCACHED_SDRAM(a) (((unsigned long)(a)) | 0x20000000)
+#else	/* !CONFIG_AU1X00 */
+#define UNCACHED_SDRAM(a) PHYSADDR(a)
+#endif	/* CONFIG_AU1X00 */
+#endif	/* __ASSEMBLY__ */
+/*
+ * Map an address to a certain kernel segment
+ */
+#ifndef __ASSEMBLY__
+#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))
+#else
+#define KSEG0ADDR(a)		(((a) & 0x1fffffff) | KSEG0)
+#define KSEG1ADDR(a)		(((a) & 0x1fffffff) | KSEG1)
+#define KSEG2ADDR(a)		(((a) & 0x1fffffff) | KSEG2)
+#define KSEG3ADDR(a)		(((a) & 0x1fffffff) | KSEG3)
+#endif
+
+/*
+ * Memory segments (64bit kernel mode addresses)
+ */
+#define XKUSEG			0x0000000000000000
+#define XKSSEG			0x4000000000000000
+#define XKPHYS			0x8000000000000000
+#define XKSEG			0xc000000000000000
+#define CKSEG0			0xffffffff80000000
+#define CKSEG1			0xffffffffa0000000
+#define CKSSEG			0xffffffffc0000000
+#define CKSEG3			0xffffffffe0000000
+
+#endif /* __ASM_MIPS_ADDRSPACE_H */