/* * 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_IP22_SPACES_H #define _ASM_MACH_IP22_SPACES_H #include <linux/config.h> #ifdef CONFIG_32BIT #define CAC_BASE 0x80000000 #define IO_BASE 0xa0000000 #define UNCAC_BASE 0xa0000000 #define MAP_BASE 0xc0000000 /* * This handles the memory map. * We handle pages at KSEG0 for kernels with 32 bit address space. */ #define PAGE_OFFSET 0x80000000UL /* * Memory above this physical address will be considered highmem. */ #ifndef HIGHMEM_START #define HIGHMEM_START 0x20000000UL #endif #endif /* CONFIG_32BIT */ #ifdef CONFIG_64BIT #define PAGE_OFFSET 0xffffffff80000000UL #ifndef HIGHMEM_START #define HIGHMEM_START (1UL << 59UL) #endif #define CAC_BASE 0xffffffff80000000 #define IO_BASE 0xffffffffa0000000 #define UNCAC_BASE 0xffffffffa0000000 #define MAP_BASE 0xc000000000000000 #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_IP22_SPACES_H */