diff options
Diffstat (limited to 'include/linux/dma-mapping.h')
-rw-r--r-- | include/linux/dma-mapping.h | 24 |
1 files changed, 14 insertions, 10 deletions
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h index 0ebfafbd338c..29b028597dcd 100644 --- a/include/linux/dma-mapping.h +++ b/include/linux/dma-mapping.h | |||
@@ -13,16 +13,20 @@ enum dma_data_direction { | |||
13 | DMA_NONE = 3, | 13 | DMA_NONE = 3, |
14 | }; | 14 | }; |
15 | 15 | ||
16 | #define DMA_64BIT_MASK 0xffffffffffffffffULL | 16 | #define DMA_BIT_MASK(n) ((1ULL<<(n))-1) |
17 | #define DMA_48BIT_MASK 0x0000ffffffffffffULL | 17 | |
18 | #define DMA_40BIT_MASK 0x000000ffffffffffULL | 18 | #define DMA_64BIT_MASK (~0ULL) |
19 | #define DMA_39BIT_MASK 0x0000007fffffffffULL | 19 | #define DMA_48BIT_MASK DMA_BIT_MASK(48) |
20 | #define DMA_32BIT_MASK 0x00000000ffffffffULL | 20 | #define DMA_47BIT_MASK DMA_BIT_MASK(47) |
21 | #define DMA_31BIT_MASK 0x000000007fffffffULL | 21 | #define DMA_40BIT_MASK DMA_BIT_MASK(40) |
22 | #define DMA_30BIT_MASK 0x000000003fffffffULL | 22 | #define DMA_39BIT_MASK DMA_BIT_MASK(39) |
23 | #define DMA_29BIT_MASK 0x000000001fffffffULL | 23 | #define DMA_35BIT_MASK DMA_BIT_MASK(35) |
24 | #define DMA_28BIT_MASK 0x000000000fffffffULL | 24 | #define DMA_32BIT_MASK DMA_BIT_MASK(32) |
25 | #define DMA_24BIT_MASK 0x0000000000ffffffULL | 25 | #define DMA_31BIT_MASK DMA_BIT_MASK(31) |
26 | #define DMA_30BIT_MASK DMA_BIT_MASK(30) | ||
27 | #define DMA_29BIT_MASK DMA_BIT_MASK(29) | ||
28 | #define DMA_28BIT_MASK DMA_BIT_MASK(28) | ||
29 | #define DMA_24BIT_MASK DMA_BIT_MASK(24) | ||
26 | 30 | ||
27 | #define DMA_MASK_NONE 0x0ULL | 31 | #define DMA_MASK_NONE 0x0ULL |
28 | 32 | ||