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/*
* linux/include/asm-arm/arch-nexuspci/memory.h
*
* Copyright (c) 1997, 1998, 2000 FutureTV Labs Ltd.
* Copyright (c) 1999 Russell King
*
*/
#ifndef __ASM_ARCH_MMU_H
#define __ASM_ARCH_MMU_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 (0x40000000UL)
#define BUS_OFFSET (0xe0000000UL)
/*
* DRAM is contiguous
*/
#define __virt_to_phys(vpage) ((unsigned long)(vpage) - PAGE_OFFSET + PHYS_OFFSET)
#define __phys_to_virt(ppage) ((unsigned long)(ppage) + PAGE_OFFSET - PHYS_OFFSET)
#define __virt_to_phys__is_a_macro
#define __phys_to_virt__is_a_macro
/*
* On the PCI bus the DRAM appears at address 0xe0000000
*/
#define __virt_to_bus__is_a_macro
#define __virt_to_bus(x) ((unsigned long)(x) - PAGE_OFFSET + BUS_OFFSET)
#define __bus_to_virt__is_a_macro
#define __bus_to_virt(x) ((unsigned long)(x) + PAGE_OFFSET - BUS_OFFSET)
#endif
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