pci-dma-compat.h
上传用户:szlgq88
上传日期:2009-04-28
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文件大小:3k
- /* include this file if the platform implements the dma_ DMA Mapping API
- * and wants to provide the pci_ DMA Mapping API in terms of it */
- #ifndef _ASM_GENERIC_PCI_DMA_COMPAT_H
- #define _ASM_GENERIC_PCI_DMA_COMPAT_H
- #include <linux/dma-mapping.h>
- /* note pci_set_dma_mask isn't here, since it's a public function
- * exported from drivers/pci, use dma_supported instead */
- static inline int
- pci_dma_supported(struct pci_dev *hwdev, u64 mask)
- {
- return dma_supported(hwdev == NULL ? NULL : &hwdev->dev, mask);
- }
- static inline void *
- pci_alloc_consistent(struct pci_dev *hwdev, size_t size,
- dma_addr_t *dma_handle)
- {
- return dma_alloc_coherent(hwdev == NULL ? NULL : &hwdev->dev, size, dma_handle, GFP_ATOMIC);
- }
- static inline void
- pci_free_consistent(struct pci_dev *hwdev, size_t size,
- void *vaddr, dma_addr_t dma_handle)
- {
- dma_free_coherent(hwdev == NULL ? NULL : &hwdev->dev, size, vaddr, dma_handle);
- }
- static inline dma_addr_t
- pci_map_single(struct pci_dev *hwdev, void *ptr, size_t size, int direction)
- {
- return dma_map_single(hwdev == NULL ? NULL : &hwdev->dev, ptr, size, (enum dma_data_direction)direction);
- }
- static inline void
- pci_unmap_single(struct pci_dev *hwdev, dma_addr_t dma_addr,
- size_t size, int direction)
- {
- dma_unmap_single(hwdev == NULL ? NULL : &hwdev->dev, dma_addr, size, (enum dma_data_direction)direction);
- }
- static inline dma_addr_t
- pci_map_page(struct pci_dev *hwdev, struct page *page,
- unsigned long offset, size_t size, int direction)
- {
- return dma_map_page(hwdev == NULL ? NULL : &hwdev->dev, page, offset, size, (enum dma_data_direction)direction);
- }
- static inline void
- pci_unmap_page(struct pci_dev *hwdev, dma_addr_t dma_address,
- size_t size, int direction)
- {
- dma_unmap_page(hwdev == NULL ? NULL : &hwdev->dev, dma_address, size, (enum dma_data_direction)direction);
- }
- static inline int
- pci_map_sg(struct pci_dev *hwdev, struct scatterlist *sg,
- int nents, int direction)
- {
- return dma_map_sg(hwdev == NULL ? NULL : &hwdev->dev, sg, nents, (enum dma_data_direction)direction);
- }
- static inline void
- pci_unmap_sg(struct pci_dev *hwdev, struct scatterlist *sg,
- int nents, int direction)
- {
- dma_unmap_sg(hwdev == NULL ? NULL : &hwdev->dev, sg, nents, (enum dma_data_direction)direction);
- }
- static inline void
- pci_dma_sync_single_for_cpu(struct pci_dev *hwdev, dma_addr_t dma_handle,
- size_t size, int direction)
- {
- dma_sync_single_for_cpu(hwdev == NULL ? NULL : &hwdev->dev, dma_handle, size, (enum dma_data_direction)direction);
- }
- static inline void
- pci_dma_sync_single_for_device(struct pci_dev *hwdev, dma_addr_t dma_handle,
- size_t size, int direction)
- {
- dma_sync_single_for_device(hwdev == NULL ? NULL : &hwdev->dev, dma_handle, size, (enum dma_data_direction)direction);
- }
- static inline void
- pci_dma_sync_sg_for_cpu(struct pci_dev *hwdev, struct scatterlist *sg,
- int nelems, int direction)
- {
- dma_sync_sg_for_cpu(hwdev == NULL ? NULL : &hwdev->dev, sg, nelems, (enum dma_data_direction)direction);
- }
- static inline void
- pci_dma_sync_sg_for_device(struct pci_dev *hwdev, struct scatterlist *sg,
- int nelems, int direction)
- {
- dma_sync_sg_for_device(hwdev == NULL ? NULL : &hwdev->dev, sg, nelems, (enum dma_data_direction)direction);
- }
- static inline int
- pci_dma_mapping_error(dma_addr_t dma_addr)
- {
- return dma_mapping_error(dma_addr);
- }
- #endif