/* * linux/include/asm-arm/arch-ebsa110/memory.h * * Copyright (C) 1996-1999 Russell King. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. * * Changelog: * 20-Oct-1996 RMK Created * 31-Dec-1997 RMK Fixed definitions to reduce warnings * 21-Mar-1999 RMK Renamed to memory.h * RMK Moved TASK_SIZE and PAGE_OFFSET here */ #ifndef __ASM_ARCH_MEMORY_H #define __ASM_ARCH_MEMORY_H /* * Task size: 3GB */ #define TASK_SIZE (0xc0000000UL) #define TASK_SIZE_26 (0x04000000UL) /* * This decides where the kernel will search for a free chunk of vm * space during mmap's. */ #define TASK_UNMAPPED_BASE (TASK_SIZE / 3) /* * Page offset: 3GB */ #define PAGE_OFFSET (0xc0000000UL) #define PHYS_OFFSET (0x00000000UL) #define __virt_to_phys__is_a_macro #define __virt_to_phys(vpage) ((vpage) - PAGE_OFFSET) #define __phys_to_virt__is_a_macro #define __phys_to_virt(ppage) ((ppage) + PAGE_OFFSET) /* * We keep this 1:1 so that we don't interfere * with the PCMCIA memory regions */ #define __virt_to_bus__is_a_macro #define __virt_to_bus(x) (x) #define __bus_to_virt__is_a_macro #define __bus_to_virt(x) (x) #define PHYS_TO_NID(addr) (0) #endif