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/*
* 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
#ifdef CONFIG_32BIT
#define CAC_BASE 0x80000000
#define IO_BASE 0xa0000000
#define UNCAC_BASE 0xa0000000
#ifndef MAP_BASE
#define MAP_BASE 0xc0000000
#endif
/*
* This handles the memory map.
* We handle pages at KSEG0 for kernels with 32 bit address space.
*/
#ifndef PAGE_OFFSET
#define PAGE_OFFSET 0x80000000UL
#endif
/*
* Memory above this physical address will be considered highmem.
*/
#ifndef HIGHMEM_START
#define HIGHMEM_START 0x20000000UL
#endif
#endif /* CONFIG_32BIT */
#ifdef CONFIG_64BIT
/*
* This handles the memory map.
*/
#ifndef PAGE_OFFSET
#ifdef CONFIG_DMA_NONCOHERENT
#define PAGE_OFFSET 0x9800000000000000UL
#else
#define PAGE_OFFSET 0xa800000000000000UL
#endif
#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
#ifndef CAC_BASE
#ifdef CONFIG_DMA_NONCOHERENT
#define CAC_BASE 0x9800000000000000UL
#else
#define CAC_BASE 0xa800000000000000UL
#endif
#endif
#ifndef IO_BASE
#define IO_BASE 0x9000000000000000UL
#endif
#ifndef UNCAC_BASE
#define UNCAC_BASE 0x9000000000000000UL
#endif
#ifndef MAP_BASE
#define MAP_BASE 0xc000000000000000UL
#endif
#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_64BIT */
#endif /* __ASM_MACH_GENERIC_SPACES_H */
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