aboutsummaryrefslogtreecommitdiff
path: root/arch/m32r/include/asm/addrspace.h
diff options
context:
space:
mode:
authorIngo Molnar <mingo@elte.hu>2009-05-11 14:44:27 +0200
committerIngo Molnar <mingo@elte.hu>2009-05-11 14:44:31 +0200
commit41fb454ebe6024f5c1e3b3cbc0abc0da762e7b51 (patch)
tree51c50bcb67a5039448ddfa1869d7948cab1217e9 /arch/m32r/include/asm/addrspace.h
parent19c1a6f5764d787113fa323ffb18be7991208f82 (diff)
parent091bf7624d1c90cec9e578a18529f615213ff847 (diff)
Merge commit 'v2.6.30-rc5' into core/iommu
Merge reason: core/iommu was on an .30-rc1 base, update it to .30-rc5 to refresh. Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/m32r/include/asm/addrspace.h')
-rw-r--r--arch/m32r/include/asm/addrspace.h57
1 files changed, 57 insertions, 0 deletions
diff --git a/arch/m32r/include/asm/addrspace.h b/arch/m32r/include/asm/addrspace.h
new file mode 100644
index 00000000000..81782c122da
--- /dev/null
+++ b/arch/m32r/include/asm/addrspace.h
@@ -0,0 +1,57 @@
+/*
+ * 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) 2001 by Hiroyuki Kondo
+ *
+ * Defitions for the address spaces of the M32R CPUs.
+ */
+#ifndef __ASM_M32R_ADDRSPACE_H
+#define __ASM_M32R_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
+
+/*
+ * 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
+
+#endif /* __ASM_M32R_ADDRSPACE_H */