diff options
| author | Robert Richter <robert.richter@amd.com> | 2010-04-23 14:30:22 +0200 |
|---|---|---|
| committer | Robert Richter <robert.richter@amd.com> | 2010-04-23 14:30:22 +0200 |
| commit | a36bf32e9e8a86f291f746b7f8292e042ee04a46 (patch) | |
| tree | c5c999baa4c214218e3adea9b336cbd9f23950ad /include/linux/dma-mapping.h | |
| parent | bc078e4eab65f11bbaeed380593ab8151b30d703 (diff) | |
| parent | 01bf0b64579ead8a82e7cfc32ae44bc667e7ad0f (diff) | |
Merge commit 'v2.6.34-rc5' into oprofile/core
Diffstat (limited to 'include/linux/dma-mapping.h')
| -rw-r--r-- | include/linux/dma-mapping.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h index 91b761846061..ca32ed78b057 100644 --- a/include/linux/dma-mapping.h +++ b/include/linux/dma-mapping.h @@ -127,6 +127,14 @@ static inline u64 dma_get_mask(struct device *dev) return DMA_BIT_MASK(32); } +static inline int dma_set_coherent_mask(struct device *dev, u64 mask) +{ + if (!dma_supported(dev, mask)) + return -EIO; + dev->coherent_dma_mask = mask; + return 0; +} + extern u64 dma_get_required_mask(struct device *dev); static inline unsigned int dma_get_max_seg_size(struct device *dev) @@ -232,4 +240,20 @@ struct dma_attrs; #endif /* CONFIG_HAVE_DMA_ATTRS */ +#ifdef CONFIG_NEED_DMA_MAP_STATE +#define DEFINE_DMA_UNMAP_ADDR(ADDR_NAME) dma_addr_t ADDR_NAME +#define DEFINE_DMA_UNMAP_LEN(LEN_NAME) __u32 LEN_NAME +#define dma_unmap_addr(PTR, ADDR_NAME) ((PTR)->ADDR_NAME) +#define dma_unmap_addr_set(PTR, ADDR_NAME, VAL) (((PTR)->ADDR_NAME) = (VAL)) +#define dma_unmap_len(PTR, LEN_NAME) ((PTR)->LEN_NAME) +#define dma_unmap_len_set(PTR, LEN_NAME, VAL) (((PTR)->LEN_NAME) = (VAL)) +#else +#define DEFINE_DMA_UNMAP_ADDR(ADDR_NAME) +#define DEFINE_DMA_UNMAP_LEN(LEN_NAME) +#define dma_unmap_addr(PTR, ADDR_NAME) (0) +#define dma_unmap_addr_set(PTR, ADDR_NAME, VAL) do { } while (0) +#define dma_unmap_len(PTR, LEN_NAME) (0) +#define dma_unmap_len_set(PTR, LEN_NAME, VAL) do { } while (0) +#endif + #endif |