linux/include/asm-generic/pci-dma-compat.h
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   1/* include this file if the platform implements the dma_ DMA Mapping API
   2 * and wants to provide the pci_ DMA Mapping API in terms of it */
   3
   4#ifndef _ASM_GENERIC_PCI_DMA_COMPAT_H
   5#define _ASM_GENERIC_PCI_DMA_COMPAT_H
   6
   7#include <linux/dma-mapping.h>
   8
   9static inline int
  10pci_dma_supported(struct pci_dev *hwdev, u64 mask)
  11{
  12        return dma_supported(hwdev == NULL ? NULL : &hwdev->dev, mask);
  13}
  14
  15static inline void *
  16pci_alloc_consistent(struct pci_dev *hwdev, size_t size,
  17                     dma_addr_t *dma_handle)
  18{
  19        return dma_alloc_coherent(hwdev == NULL ? NULL : &hwdev->dev, size, dma_handle, GFP_ATOMIC);
  20}
  21
  22static inline void
  23pci_free_consistent(struct pci_dev *hwdev, size_t size,
  24                    void *vaddr, dma_addr_t dma_handle)
  25{
  26        dma_free_coherent(hwdev == NULL ? NULL : &hwdev->dev, size, vaddr, dma_handle);
  27}
  28
  29static inline dma_addr_t
  30pci_map_single(struct pci_dev *hwdev, void *ptr, size_t size, int direction)
  31{
  32        return dma_map_single(hwdev == NULL ? NULL : &hwdev->dev, ptr, size, (enum dma_data_direction)direction);
  33}
  34
  35static inline void
  36pci_unmap_single(struct pci_dev *hwdev, dma_addr_t dma_addr,
  37                 size_t size, int direction)
  38{
  39        dma_unmap_single(hwdev == NULL ? NULL : &hwdev->dev, dma_addr, size, (enum dma_data_direction)direction);
  40}
  41
  42static inline dma_addr_t
  43pci_map_page(struct pci_dev *hwdev, struct page *page,
  44             unsigned long offset, size_t size, int direction)
  45{
  46        return dma_map_page(hwdev == NULL ? NULL : &hwdev->dev, page, offset, size, (enum dma_data_direction)direction);
  47}
  48
  49static inline void
  50pci_unmap_page(struct pci_dev *hwdev, dma_addr_t dma_address,
  51               size_t size, int direction)
  52{
  53        dma_unmap_page(hwdev == NULL ? NULL : &hwdev->dev, dma_address, size, (enum dma_data_direction)direction);
  54}
  55
  56static inline int
  57pci_map_sg(struct pci_dev *hwdev, struct scatterlist *sg,
  58           int nents, int direction)
  59{
  60        return dma_map_sg(hwdev == NULL ? NULL : &hwdev->dev, sg, nents, (enum dma_data_direction)direction);
  61}
  62
  63static inline void
  64pci_unmap_sg(struct pci_dev *hwdev, struct scatterlist *sg,
  65             int nents, int direction)
  66{
  67        dma_unmap_sg(hwdev == NULL ? NULL : &hwdev->dev, sg, nents, (enum dma_data_direction)direction);
  68}
  69
  70static inline void
  71pci_dma_sync_single_for_cpu(struct pci_dev *hwdev, dma_addr_t dma_handle,
  72                    size_t size, int direction)
  73{
  74        dma_sync_single_for_cpu(hwdev == NULL ? NULL : &hwdev->dev, dma_handle, size, (enum dma_data_direction)direction);
  75}
  76
  77static inline void
  78pci_dma_sync_single_for_device(struct pci_dev *hwdev, dma_addr_t dma_handle,
  79                    size_t size, int direction)
  80{
  81        dma_sync_single_for_device(hwdev == NULL ? NULL : &hwdev->dev, dma_handle, size, (enum dma_data_direction)direction);
  82}
  83
  84static inline void
  85pci_dma_sync_sg_for_cpu(struct pci_dev *hwdev, struct scatterlist *sg,
  86                int nelems, int direction)
  87{
  88        dma_sync_sg_for_cpu(hwdev == NULL ? NULL : &hwdev->dev, sg, nelems, (enum dma_data_direction)direction);
  89}
  90
  91static inline void
  92pci_dma_sync_sg_for_device(struct pci_dev *hwdev, struct scatterlist *sg,
  93                int nelems, int direction)
  94{
  95        dma_sync_sg_for_device(hwdev == NULL ? NULL : &hwdev->dev, sg, nelems, (enum dma_data_direction)direction);
  96}
  97
  98static inline int
  99pci_dma_mapping_error(struct pci_dev *pdev, dma_addr_t dma_addr)
 100{
 101        return dma_mapping_error(&pdev->dev, dma_addr);
 102}
 103
 104#ifdef CONFIG_PCI
 105static inline int pci_set_dma_mask(struct pci_dev *dev, u64 mask)
 106{
 107        return dma_set_mask(&dev->dev, mask);
 108}
 109
 110static inline int pci_set_consistent_dma_mask(struct pci_dev *dev, u64 mask)
 111{
 112        return dma_set_coherent_mask(&dev->dev, mask);
 113}
 114#endif
 115
 116#endif
 117
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