123 lines
3.5 KiB
C
123 lines
3.5 KiB
C
/* include this file if the platform implements the dma_ DMA Mapping API
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* and wants to provide the pci_ DMA Mapping API in terms of it */
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#ifndef _ASM_GENERIC_PCI_DMA_COMPAT_H
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#define _ASM_GENERIC_PCI_DMA_COMPAT_H
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#include <linux/dma-mapping.h>
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static inline void *
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pci_alloc_consistent(struct pci_dev *hwdev, size_t size,
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dma_addr_t *dma_handle)
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{
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return dma_alloc_coherent(hwdev == NULL ? NULL : &hwdev->dev, size, dma_handle, GFP_ATOMIC);
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}
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static inline void *
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pci_zalloc_consistent(struct pci_dev *hwdev, size_t size,
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dma_addr_t *dma_handle)
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{
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return dma_zalloc_coherent(hwdev == NULL ? NULL : &hwdev->dev,
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size, dma_handle, GFP_ATOMIC);
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}
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static inline void
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pci_free_consistent(struct pci_dev *hwdev, size_t size,
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void *vaddr, dma_addr_t dma_handle)
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{
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dma_free_coherent(hwdev == NULL ? NULL : &hwdev->dev, size, vaddr, dma_handle);
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}
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static inline dma_addr_t
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pci_map_single(struct pci_dev *hwdev, void *ptr, size_t size, int direction)
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{
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return dma_map_single(hwdev == NULL ? NULL : &hwdev->dev, ptr, size, (enum dma_data_direction)direction);
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}
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static inline void
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pci_unmap_single(struct pci_dev *hwdev, dma_addr_t dma_addr,
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size_t size, int direction)
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{
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dma_unmap_single(hwdev == NULL ? NULL : &hwdev->dev, dma_addr, size, (enum dma_data_direction)direction);
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}
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static inline dma_addr_t
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pci_map_page(struct pci_dev *hwdev, struct page *page,
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unsigned long offset, size_t size, int direction)
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{
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return (dma_addr_t)( (offset)+page_to_phys(page));
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}
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static inline void
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pci_unmap_page(struct pci_dev *hwdev, dma_addr_t dma_address,
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size_t size, int direction)
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{
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}
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#define pci_map_page(dev, page, offset, size, direction) \
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(dma_addr_t)( (offset)+page_to_phys(page))
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#define pci_unmap_page(dev, dma_address, size, direction)
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static inline int
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pci_map_sg(struct pci_dev *hwdev, struct scatterlist *sg,
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int nents, int direction)
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{
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return dma_map_sg(hwdev == NULL ? NULL : &hwdev->dev, sg, nents, (enum dma_data_direction)direction);
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}
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static inline void
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pci_unmap_sg(struct pci_dev *hwdev, struct scatterlist *sg,
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int nents, int direction)
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{
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dma_unmap_sg(hwdev == NULL ? NULL : &hwdev->dev, sg, nents, (enum dma_data_direction)direction);
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}
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static inline void
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pci_dma_sync_single_for_cpu(struct pci_dev *hwdev, dma_addr_t dma_handle,
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size_t size, int direction)
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{
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dma_sync_single_for_cpu(hwdev == NULL ? NULL : &hwdev->dev, dma_handle, size, (enum dma_data_direction)direction);
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}
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static inline void
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pci_dma_sync_single_for_device(struct pci_dev *hwdev, dma_addr_t dma_handle,
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size_t size, int direction)
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{
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dma_sync_single_for_device(hwdev == NULL ? NULL : &hwdev->dev, dma_handle, size, (enum dma_data_direction)direction);
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}
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static inline void
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pci_dma_sync_sg_for_cpu(struct pci_dev *hwdev, struct scatterlist *sg,
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int nelems, int direction)
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{
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dma_sync_sg_for_cpu(hwdev == NULL ? NULL : &hwdev->dev, sg, nelems, (enum dma_data_direction)direction);
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}
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static inline void
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pci_dma_sync_sg_for_device(struct pci_dev *hwdev, struct scatterlist *sg,
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int nelems, int direction)
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{
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dma_sync_sg_for_device(hwdev == NULL ? NULL : &hwdev->dev, sg, nelems, (enum dma_data_direction)direction);
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}
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static inline int
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pci_dma_mapping_error(struct pci_dev *pdev, dma_addr_t dma_addr)
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{
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return dma_mapping_error(&pdev->dev, dma_addr);
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}
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#ifdef CONFIG_PCI
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static inline int pci_set_dma_mask(struct pci_dev *dev, u64 mask)
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{
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return 0;
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}
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static inline int pci_set_consistent_dma_mask(struct pci_dev *dev, u64 mask)
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{
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return 0;
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}
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#endif
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#endif
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