1 files changed, 72 insertions, 0 deletions

diff --git a/include/asm-mips/mach-generic/spaces.h b/include/asm-mips/mach-generic/spaces.h
new file mode 100644
index 000000000000..63c0a81c7832
--- /dev/null
+++ b/include/asm-mips/mach-generic/spaces.h
@@ -0,0 +1,72 @@
+/*
+ * 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/config.h>
+
+#ifdef CONFIG_MIPS32
+
+#define CAC_BASE                0x80000000
+#define IO_BASE                 0xa0000000
+#define UNCAC_BASE              0xa0000000
+#define MAP_BASE                0xc0000000
+
+/*
+ * This handles the memory map.
+ * We handle pages at KSEG0 for kernels with 32 bit address space.
+ */
+#define PAGE_OFFSET             0x80000000UL
+
+/*
+ * Memory above this physical address will be considered highmem.
+ */
+#ifndef HIGHMEM_START
+#define HIGHMEM_START           0x20000000UL
+#endif
+
+#endif /* CONFIG_MIPS32 */
+
+#ifdef CONFIG_MIPS64
+
+/*
+ * This handles the memory map.
+ */
+#ifdef CONFIG_DMA_NONCOHERENT
+#define PAGE_OFFSET     0x9800000000000000UL
+#else
+#define PAGE_OFFSET     0xa800000000000000UL
+#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           (1UL << 59UL)
+#endif
+
+#ifdef CONFIG_DMA_NONCOHERENT
+#define CAC_BASE                0x9800000000000000
+#else
+#define CAC_BASE                0xa800000000000000
+#endif
+#define IO_BASE                 0x9000000000000000
+#define UNCAC_BASE              0x9000000000000000
+#define MAP_BASE                0xc000000000000000
+
+#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_MIPS64 */
+
+#endif /* __ASM_MACH_GENERIC_SPACES_H */