include/asm-generic/pci-dma-compat.h

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