patch-2.3.48 linux/include/asm-mips64/addrspace.h

• Lines: 108
• Date: Thu Feb 24 22:53:35 2000
• Orig file: v2.3.47/linux/include/asm-mips64/addrspace.h
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.3.47/linux/include/asm-mips64/addrspace.h linux/include/asm-mips64/addrspace.h
@@ -0,0 +1,107 @@
+/* $Id: addrspace.h,v 1.6 2000/02/10 20:20:15 kanoj Exp $
+ *
+ * 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, 1999 by Ralf Baechle
+ * Copyright (C) 1990, 1999 by Silicon Graphics, Inc.
+ */
+#ifndef _ASM_ADDRSPACE_H
+#define _ASM_ADDRSPACE_H
+
+#include <linux/config.h>
+
+/*
+ * Memory segments (32bit kernel mode addresses)
+ */
+#define KUSEG                   0x0000000000000000
+#define KSEG0                   0xffffffff80000000
+#define KSEG1                   0xffffffffa0000000
+#define KSEG2                   0xffffffffc0000000
+#define KSEG3                   0xffffffffe0000000
+
+/*
+ * Returns the kernel segment base of a given address
+ */
+#define KSEGX(a)                (((unsigned long)(a)) & 0xe0000000)
+
+/*
+ * Returns the physical address of a KSEG0/KSEG1 address
+ */
+#define CPHYSADDR(a)		(((unsigned long)(a)) & 0x000000001fffffffUL)
+#define PHYSADDR(a)		(((unsigned long)(a)) & 0x000000ffffffffffUL)
+
+/*
+ * Map an address to a certain kernel segment
+ */
+#define KSEG0ADDR(a)		((__typeof__(a))(((unsigned long)(a) & 0x000000ffffffffffUL) | KSEG0))
+#define KSEG1ADDR(a)		((__typeof__(a))(((unsigned long)(a) & 0x000000ffffffffffUL) | KSEG1))
+#define KSEG2ADDR(a)		((__typeof__(a))(((unsigned long)(a) & 0x000000ffffffffffUL) | KSEG2))
+#define KSEG3ADDR(a)		((__typeof__(a))(((unsigned long)(a) & 0x000000ffffffffffUL) | KSEG3))
+
+/*
+ * 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
+
+#if defined (CONFIG_CPU_R4300)						\
+    || defined (CONFIG_CPU_R4X00)					\
+    || defined (CONFIG_CPU_R5000)					\
+    || defined (CONFIG_CPU_NEVADA)
+#define	KUSIZE		0x0000010000000000		/* 2^^40 */
+#define	KUSIZE_64	0x0000010000000000		/* 2^^40 */
+#define	K0SIZE		0x0000001000000000		/* 2^^36 */
+#define	K1SIZE		0x0000001000000000		/* 2^^36 */
+#define	K2SIZE		0x000000ff80000000
+#define	KSEGSIZE	0x000000ff80000000		/* max syssegsz */
+#define TO_PHYS_MASK	0x0000000fffffffff		/* 2^^36 - 1 */
+#endif
+
+#if defined (CONFIG_CPU_R8000)
+/* We keep KUSIZE consistent with R4000 for now (2^^40) instead of (2^^48) */
+#define	KUSIZE		0x0000010000000000		/* 2^^40 */
+#define	KUSIZE_64	0x0000010000000000		/* 2^^40 */
+#define	K0SIZE		0x0000010000000000		/* 2^^40 */
+#define	K1SIZE		0x0000010000000000		/* 2^^40 */
+#define	K2SIZE		0x0001000000000000
+#define	KSEGSIZE	0x0000010000000000		/* max syssegsz */
+#define TO_PHYS_MASK	0x000000ffffffffff		/* 2^^40 - 1 */
+#endif
+
+#if defined (CONFIG_CPU_R10000)
+#define	KUSIZE		0x0000010000000000		/* 2^^40 */
+#define	KUSIZE_64	0x0000010000000000		/* 2^^40 */
+#define	K0SIZE		0x0000010000000000		/* 2^^40 */
+#define	K1SIZE		0x0000010000000000		/* 2^^40 */
+#define	K2SIZE		0x00000fff80000000
+#define	KSEGSIZE	0x00000fff80000000		/* max syssegsz */
+#define TO_PHYS_MASK	0x000000ffffffffff		/* 2^^40 - 1 */
+#endif
+
+/*
+ * Further names for SGI source compatibility.  These are stolen from
+ * IRIX's <sys/mips_addrspace.h>.
+ */
+#define KUBASE		0
+#define KUSIZE_32	0x0000000080000000	/* KUSIZE for a 32 bit proc */
+#define K0BASE		0xa800000000000000
+#define K0BASE_EXL_WR	K0BASE			/* exclusive on write */
+#define K0BASE_NONCOH	0x9800000000000000	/* noncoherent */
+#define K0BASE_EXL	0xa000000000000000	/* exclusive */
+
+#ifdef CONFIG_SGI_IP27
+#define K1BASE		0x9600000000000000	/* Uncached attr 3, uncac */
+#else
+#define K1BASE		0x9000000000000000
+#endif
+#define K2BASE		0xc000000000000000
+
+#endif /* _ASM_ADDRSPACE_H */