Loading...
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 | /* * 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 __ASSEMBLY__ # if defined(CONFIG_MIPS_AUTO_PFN_OFFSET) # define PHYS_OFFSET ((unsigned long)PFN_PHYS(ARCH_PFN_OFFSET)) # elif !defined(PHYS_OFFSET) # define PHYS_OFFSET _AC(0, UL) # endif #endif /* __ASSEMBLY__ */ #ifdef CONFIG_32BIT #ifdef CONFIG_KVM_GUEST #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 CONFIG_KVM_GUEST #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 CONFIG_64BIT #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 CONFIG_KVM_GUEST #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 */ |