43 lines
913 B
C
43 lines
913 B
C
/*
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* linux/include/asm-arm/arch-shark/memory.h
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*
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* by Alexander Schulz
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*
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* derived from:
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* linux/include/asm-arm/arch-ebsa110/memory.h
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* Copyright (c) 1996-1999 Russell King.
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*/
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#ifndef __ASM_ARCH_MEMORY_H
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#define __ASM_ARCH_MEMORY_H
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#include <asm/sizes.h>
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/*
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* Physical DRAM offset.
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*/
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#define PHYS_OFFSET (0x08000000UL)
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#ifndef __ASSEMBLY__
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static inline void __arch_adjust_zones(int node, unsigned long *zone_size, unsigned long *zhole_size)
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{
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if (node != 0) return;
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/* Only the first 4 MB (=1024 Pages) are usable for DMA */
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zone_size[1] = zone_size[0] - 1024;
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zone_size[0] = 1024;
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zhole_size[1] = zhole_size[0];
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zhole_size[0] = 0;
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}
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#define arch_adjust_zones(node, size, holes) \
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__arch_adjust_zones(node, size, holes)
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#define ISA_DMA_THRESHOLD (PHYS_OFFSET + SZ_4M - 1)
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#endif
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#define __virt_to_bus(x) __virt_to_phys(x)
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#define __bus_to_virt(x) __phys_to_virt(x)
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#endif
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