18 lines
300 B
C
18 lines
300 B
C
#ifndef _LINUX_DMA_MAPPING_H
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#define _LINUX_DMA_MAPPING_H
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#ifdef CONFIG_HAS_DMA
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# error Virtio userspace code does not support CONFIG_HAS_DMA
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#endif
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#define PCI_DMA_BUS_IS_PHYS 1
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enum dma_data_direction {
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DMA_BIDIRECTIONAL = 0,
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DMA_TO_DEVICE = 1,
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DMA_FROM_DEVICE = 2,
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DMA_NONE = 3,
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};
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#endif
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