27 lines
708 B
C
27 lines
708 B
C
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/*
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* Copyright 2003 ARM Limited
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* Copyright 2008 Cavium Networks
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*
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* This file is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License, Version 2, as
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* published by the Free Software Foundation.
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*/
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#ifndef __MACH_MEMORY_H
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#define __MACH_MEMORY_H
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/*
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* Physical DRAM offset.
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*/
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#define PHYS_OFFSET UL(0x00000000)
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#define __phys_to_bus(x) ((x) + PHYS_OFFSET)
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#define __bus_to_phys(x) ((x) - PHYS_OFFSET)
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#define __virt_to_bus(v) __phys_to_bus(__virt_to_phys(v))
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#define __bus_to_virt(b) __phys_to_virt(__bus_to_phys(b))
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#define __pfn_to_bus(p) __phys_to_bus(__pfn_to_phys(p))
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#define __bus_to_pfn(b) __phys_to_pfn(__bus_to_phys(b))
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#endif
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