diff options
| author | FUJITA Tomonori <[email protected]> | 2010-03-10 15:23:31 -0800 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2010-03-12 15:52:42 -0800 |
| commit | 0acedc124aca35f5cce9d4ee288dc372bf517e09 (patch) | |
| tree | 699113a95be38de29457d0cc71139d9c82efba3e /include/linux | |
| parent | f41b177157718abe9a93868bb76e47d4a6f3681d (diff) | |
dma-mapping.h: add the dma_unmap state API
Adds the following macros:
DECLARE_DMA_UNMAP_ADDR(ADDR_NAME)
DECLARE_DMA_UNMAP_LEN(LEN_NAME)
dma_unmap_addr(PTR, ADDR_NAME)
dma_unmap_addr_set(PTR, ADDR_NAME, VAL)
dma_unmap_len(PTR, LEN_NAME)
dma_unmap_len_set(PTR, LEN_NAME, VAL)
The API corresponds to the pci_unmap state API. We'll move to this new
generic API from the PCI specific API in the long term. As
include/asm-generic/pci-dma-compat.h does, the pci_unmap API simply calls
the new generic API for some time.
Signed-off-by: FUJITA Tomonori <[email protected]>
Cc: James Bottomley <[email protected]>
Cc: David S. Miller <[email protected]>
Cc: Jesse Barnes <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/dma-mapping.h | 16 | ||||
| -rw-r--r-- | include/linux/pci-dma.h | 21 |
2 files changed, 22 insertions, 15 deletions
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h index 91b761846061..c5ac9d49cc06 100644 --- a/include/linux/dma-mapping.h +++ b/include/linux/dma-mapping.h @@ -232,4 +232,20 @@ 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 diff --git a/include/linux/pci-dma.h b/include/linux/pci-dma.h index cfd63ab09abc..549a041f9c08 100644 --- a/include/linux/pci-dma.h +++ b/include/linux/pci-dma.h @@ -1,20 +1,11 @@ #ifndef _LINUX_PCI_DMA_H #define _LINUX_PCI_DMA_H -#ifdef CONFIG_NEED_DMA_MAP_STATE -#define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME) dma_addr_t ADDR_NAME; -#define DECLARE_PCI_UNMAP_LEN(LEN_NAME) __u32 LEN_NAME; -#define pci_unmap_addr(PTR, ADDR_NAME) ((PTR)->ADDR_NAME) -#define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) (((PTR)->ADDR_NAME) = (VAL)) -#define pci_unmap_len(PTR, LEN_NAME) ((PTR)->LEN_NAME) -#define pci_unmap_len_set(PTR, LEN_NAME, VAL) (((PTR)->LEN_NAME) = (VAL)) -#else -#define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME) -#define DECLARE_PCI_UNMAP_LEN(LEN_NAME) -#define pci_unmap_addr(PTR, ADDR_NAME) (0) -#define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) do { } while (0) -#define pci_unmap_len(PTR, LEN_NAME) (0) -#define pci_unmap_len_set(PTR, LEN_NAME, VAL) do { } while (0) -#endif +#define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME) DEFINE_DMA_UNMAP_ADDR(ADDR_NAME); +#define DECLARE_PCI_UNMAP_LEN(LEN_NAME) DEFINE_DMA_UNMAP_LEN(LEN_NAME); +#define pci_unmap_addr dma_unmap_addr +#define pci_unmap_addr_set dma_unmap_addr_set +#define pci_unmap_len dma_unmap_len +#define pci_unmap_len_set dma_unmap_len_set #endif |