828b35f60e
Add DMA IOMMU support using 4K page table entries. Implement dma_map_ops. Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
14 lines
319 B
C
14 lines
319 B
C
#ifndef _ASM_S390_DMA_H
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#define _ASM_S390_DMA_H
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#include <asm/io.h>
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/*
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* MAX_DMA_ADDRESS is ambiguous because on s390 its completely unrelated
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* to DMA. It _is_ used for the s390 memory zone split at 2GB caused
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* by the 31 bit heritage.
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*/
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#define MAX_DMA_ADDRESS 0x80000000
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#endif /* _ASM_S390_DMA_H */
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