1 files changed, 85 insertions, 0 deletions

diff --git a/arch/mips/include/asm/mach-generic/spaces.h b/arch/mips/include/asm/mach-generic/spaces.h
new file mode 100644
index 000000000000..c9fa4b14968d
--- /dev/null
+++ b/arch/mips/include/asm/mach-generic/spaces.h
@@ -0,0 +1,85 @@
+/*
+ * 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) 1994 - 1999, 2000, 03, 04 Ralf Baechle
+ * Copyright (C) 2000, 2002  Maciej W. Rozycki
+ * Copyright (C) 1990, 1999, 2000 Silicon Graphics, Inc.
+ */
+#ifndef _ASM_MACH_GENERIC_SPACES_H
+#define _ASM_MACH_GENERIC_SPACES_H
+
+#include <linux/const.h>
+
+/*
+ * This gives the physical RAM offset.
+ */
+#ifndef PHYS_OFFSET
+#define PHYS_OFFSET             _AC(0, UL)
+#endif
+
+#ifdef CONFIG_32BIT
+
+#define CAC_BASE                _AC(0x80000000, UL)
+#define IO_BASE                 _AC(0xa0000000, UL)
+#define UNCAC_BASE              _AC(0xa0000000, UL)
+
+#ifndef MAP_BASE
+#define MAP_BASE                _AC(0xc0000000, UL)
+#endif
+
+/*
+ * Memory above this physical address will be considered highmem.
+ */
+#ifndef HIGHMEM_START
+#define HIGHMEM_START           _AC(0x20000000, UL)
+#endif
+
+#endif /* CONFIG_32BIT */
+
+#ifdef CONFIG_64BIT
+
+#ifndef CAC_BASE
+#ifdef CONFIG_DMA_NONCOHERENT
+#define CAC_BASE                _AC(0x9800000000000000, UL)
+#else
+#define CAC_BASE                _AC(0xa800000000000000, UL)
+#endif
+#endif
+
+#ifndef IO_BASE
+#define IO_BASE                 _AC(0x9000000000000000, UL)
+#endif
+
+#ifndef UNCAC_BASE
+#define UNCAC_BASE              _AC(0x9000000000000000, UL)
+#endif
+
+#ifndef MAP_BASE
+#define MAP_BASE                _AC(0xc000000000000000, UL)
+#endif
+
+/*
+ * Memory above this physical address will be considered highmem.
+ * Fixme: 59 bits is a fictive number and makes assumptions about processors
+ * in the distant future.  Nobody will care for a few years :-)
+ */
+#ifndef HIGHMEM_START
+#define HIGHMEM_START           (_AC(1, UL) << _AC(59, UL))
+#endif
+
+#define TO_PHYS(x)              (             ((x) & TO_PHYS_MASK))
+#define TO_CAC(x)               (CAC_BASE   | ((x) & TO_PHYS_MASK))
+#define TO_UNCAC(x)             (UNCAC_BASE | ((x) & TO_PHYS_MASK))
+
+#endif /* CONFIG_64BIT */
+
+/*
+ * This handles the memory map.
+ */
+#ifndef PAGE_OFFSET
+#define PAGE_OFFSET             (CAC_BASE + PHYS_OFFSET)
+#endif
+
+#endif /* __ASM_MACH_GENERIC_SPACES_H */