/* * 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 #include <linux/const.h> #include <asm/mipsregs.h> /* * This gives the physical RAM offset. */ #ifndef PHYS_OFFSET #define PHYS_OFFSET _AC(0, UL) #endif #ifdef [31mCONFIG_32BIT[0m #ifdef [31mCONFIG_KVM_GUEST[0m #define CAC_BASE _AC(0x40000000, UL) #else #define CAC_BASE _AC(0x80000000, UL) #endif #ifndef IO_BASE #define IO_BASE _AC(0xa0000000, UL) #endif #ifndef UNCAC_BASE #define UNCAC_BASE _AC(0xa0000000, UL) #endif #ifndef MAP_BASE #ifdef [31mCONFIG_KVM_GUEST[0m #define MAP_BASE _AC(0x60000000, UL) #else #define MAP_BASE _AC(0xc0000000, UL) #endif #endif /* * Memory above this physical address will be considered highmem. */ #ifndef HIGHMEM_START #define HIGHMEM_START _AC(0x20000000, UL) #endif #endif /* CONFIG_32BIT */ #ifdef [31mCONFIG_64BIT[0m #ifndef CAC_BASE #define CAC_BASE PHYS_TO_XKPHYS(read_c0_config() & CONF_CM_CMASK, 0) #endif #ifndef IO_BASE #define IO_BASE _AC(0x9000000000000000, UL) #endif #ifndef UNCAC_BASE #define UNCAC_BASE _AC(0x9000000000000000, UL) #endif #ifndef MAP_BASE #define MAP_BASE _AC(0xc000000000000000, UL) #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 (_AC(1, UL) << _AC(59, UL)) #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 */ /* * This handles the memory map. */ #ifndef PAGE_OFFSET #define PAGE_OFFSET (CAC_BASE + PHYS_OFFSET) #endif #ifndef FIXADDR_TOP #ifdef [31mCONFIG_KVM_GUEST[0m #define FIXADDR_TOP ((unsigned long)(long)(int)0x7ffe0000) #else #define FIXADDR_TOP ((unsigned long)(long)(int)0xfffe0000) #endif #endif #endif /* __ASM_MACH_GENERIC_SPACES_H */ |