diff options
| -rw-r--r-- | include/linux/pci-dma.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/include/linux/pci-dma.h b/include/linux/pci-dma.h new file mode 100644 index 00000000000..cfd63ab09ab --- /dev/null +++ b/include/linux/pci-dma.h @@ -0,0 +1,20 @@ +#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 + +#endif |