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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-mips/mach-ip27/spaces.h
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'include/asm-mips/mach-ip27/spaces.h')
-rw-r--r--include/asm-mips/mach-ip27/spaces.h34
1 files changed, 34 insertions, 0 deletions
diff --git a/include/asm-mips/mach-ip27/spaces.h b/include/asm-mips/mach-ip27/spaces.h
new file mode 100644
index 00000000000..e3b3fe32eeb
--- /dev/null
+++ b/include/asm-mips/mach-ip27/spaces.h
@@ -0,0 +1,34 @@
+/*
+ * 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, 99 Ralf Baechle
+ * Copyright (C) 2000, 2002 Maciej W. Rozycki
+ * Copyright (C) 1990, 1999 by Silicon Graphics, Inc.
+ */
+#ifndef _ASM_MACH_IP27_SPACES_H
+#define _ASM_MACH_IP27_SPACES_H
+
+/*
+ * IP27 uses the R10000's uncached attribute feature. Attribute 3 selects
+ * uncached memory addressing.
+ */
+#define CAC_BASE 0xa800000000000000
+
+#define HSPEC_BASE 0x9000000000000000
+#define IO_BASE 0x9200000000000000
+#define MSPEC_BASE 0x9400000000000000
+#define UNCAC_BASE 0x9600000000000000
+
+#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))
+#define TO_MSPEC(x) (MSPEC_BASE | ((x) & TO_PHYS_MASK))
+#define TO_HSPEC(x) (HSPEC_BASE | ((x) & TO_PHYS_MASK))
+
+#define PAGE_OFFSET CAC_BASE
+
+#define HIGHMEM_START (~0UL)
+
+#endif /* _ASM_MACH_IP27_SPACES_H */