2 * This file is subject to the terms and conditions of the GNU General Public
3 * License. See the file "COPYING" in the main directory of this archive
6 * Copyright (C) 1994 - 1999, 2000, 03, 04 Ralf Baechle
7 * Copyright (C) 2000, 2002 Maciej W. Rozycki
8 * Copyright (C) 1990, 1999, 2000 Silicon Graphics, Inc.
10 #ifndef _ASM_MACH_IP32_SPACES_H
11 #define _ASM_MACH_IP32_SPACES_H
13 #include <linux/config.h>
16 * This handles the memory map.
18 #define PAGE_OFFSET 0xffffffff80000000
21 * Memory above this physical address will be considered highmem.
22 * Fixme: 59 bits is a fictive number and makes assumptions about processors
23 * in the distant future. Nobody will care for a few years :-)
26 #define HIGHMEM_START (1UL << 59UL)
29 #ifdef CONFIG_DMA_NONCOHERENT
30 #define CAC_BASE 0x9800000000000000
32 #define CAC_BASE 0xa800000000000000
34 #define IO_BASE 0x9000000000000000
35 #define UNCAC_BASE 0x9000000000000000
36 #define MAP_BASE 0xc000000000000000
38 #define TO_PHYS(x) ( ((x) & TO_PHYS_MASK))
39 #define TO_CAC(x) (CAC_BASE | ((x) & TO_PHYS_MASK))
40 #define TO_UNCAC(x) (UNCAC_BASE | ((x) & TO_PHYS_MASK))
42 #endif /* __ASM_MACH_IP32_SPACES_H */