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/*
* linux/include/asm-arm/arch-sa1100/memory.h
*
* Copyright (c) 1999 Nicolas Pitre <nico@visuaide.com>
*/
#ifndef __ASM_ARCH_MEMORY_H
#define __ASM_ARCH_MEMORY_H
/*
* Task size: 3GB
*/
#define TASK_SIZE (0xc0000000UL)
/*
* Page offset: 3GB
*/
#define PAGE_OFFSET (0xc0000000UL)
#define PHYS_OFFSET (0x00000000UL)
#define __virt_to_phys__is_a_macro
#define __phys_to_virt__is_a_macro
/*
* The following gives a maximum memory size of 128MB (32MB in each bank).
*
* Does this still need to be optimised for one bank machines?
*/
#define __virt_to_phys(x) (((x) & 0xe0ffffff) | ((x) & 0x06000000) << 2)
#define __phys_to_virt(x) (((x) & 0xe7ffffff) | ((x) & 0x30000000) >> 2)
/*
* Virtual view <-> DMA view memory address translations
* virt_to_bus: Used to translate the virtual address to an
* address suitable to be passed to set_dma_addr
* bus_to_virt: Used to convert an address for DMA operations
* to an address that the kernel can use.
*
* On the SA1100, bus addresses are equivalent to physical addresses.
*/
#define __virt_to_bus__is_a_macro
#define __bus_to_virt__is_a_macro
#define __virt_to_bus(x) __virt_to_phys(x)
#define __bus_to_virt(x) __phys_to_virt(x)
#endif
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