/* * linux/include/asm-arm/memory.h * * Copyright (C) 2000 Russell King * Copyright (C) 2001 RidgeRun, Inc (http://www.ridgerun.com) * * 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. * * Note: this file should not be included by non-asm/.h files * * Modifications: * 02/20/01 Gordon McNutt Leveraged for uClinux-2.4.x */ #ifndef __ASM_ARM_MEMORY_H #define __ASM_ARM_MEMORY_H #include /* * Virtual, bus and physical addresses are all the same when there's no MMU. * --gmcnutt */ #define virt_to_bus(x) ((unsigned long) (x)) #define bus_to_virt(x) ((void *) (x)) #define virt_to_phys(x) ((unsigned long) (x)) #define phys_to_virt(x) ((void *) (x)) /* * For some reason other asm/.h files refer to these instead of the more * public macros above. * --gmcnutt */ #define __virt_to_bus(x) ((unsigned long) (x)) #define __bus_to_virt(x) ((void *) (x)) #define __virt_to_phys(x) ((unsigned long) (x)) #define __phys_to_virt(x) ((void *) (x)) /* * arch/armnommu/kernel/armksyms.c needs these. * --gmcnutt */ #define __virt_to_phys__is_a_macro #define __phys_to_virt__is_a_macro #define __virt_to_bus__is_a_macro #define __bus_to_virt__is_a_macro #endif