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Last change
on this file since 596 was 441, checked in by Paul Smedley, 16 years ago |
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Move functions out of config.h into appropriate linux header
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File size:
823 bytes
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| 1 | #ifndef _ASM_LINUX_DMA_MAPPING_H
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| 2 | #define _ASM_LINUX_DMA_MAPPING_H
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| 3 |
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| 4 | /* These definitions mirror those in pci.h, so they can be used
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| 5 | * interchangeably with their PCI_ counterparts */
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| 6 | enum dma_data_direction {
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| 7 | DMA_BIDIRECTIONAL = 0,
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| 8 | DMA_TO_DEVICE = 1,
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| 9 | DMA_FROM_DEVICE = 2,
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| 10 | DMA_NONE = 3,
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| 11 | };
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| 12 |
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| 13 | #define DMA_64BIT_MASK 0xffffffffffffffffULL
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| 14 | //#define DMA_32BIT_MASK 0x00000000ffffffffULL
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| 15 |
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| 16 | #ifndef DMA_32BIT_MASK
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| 17 | #define DMA_32BIT_MASK 0xffffffff
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| 18 | #endif
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| 19 | #ifndef DMA_31BIT_MASK
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| 20 | #define DMA_31BIT_MASK 0x000000007fffffffULL
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| 21 | #endif
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| 22 | #ifndef DMA_30BIT_MASK
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| 23 | #define DMA_30BIT_MASK 0x000000003fffffffULL
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| 24 | #endif
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| 25 | #ifndef DMA_28BIT_MASK
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| 26 | #define DMA_28BIT_MASK 0x000000000fffffffULL
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| 27 | #endif
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| 28 | #ifndef DMA_24BIT_MASK
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| 29 | #define DMA_24BIT_MASK 0x0000000000ffffffULL
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| 30 | #endif
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| 31 | #define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : ((1ULL<<(n))-1))
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| 32 | #endif
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| 33 |
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| 34 |
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