0,0 → 1,131 |
/* 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 */ |
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#ifndef _ASM_GENERIC_PCI_DMA_COMPAT_H |
#define _ASM_GENERIC_PCI_DMA_COMPAT_H |
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#include <linux/dma-mapping.h> |
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/* This defines the direction arg to the DMA mapping routines. */ |
#define PCI_DMA_BIDIRECTIONAL 0 |
#define PCI_DMA_TODEVICE 1 |
#define PCI_DMA_FROMDEVICE 2 |
#define PCI_DMA_NONE 3 |
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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); |
} |
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static inline void * |
pci_zalloc_consistent(struct pci_dev *hwdev, size_t size, |
dma_addr_t *dma_handle) |
{ |
return dma_zalloc_coherent(hwdev == NULL ? NULL : &hwdev->dev, |
size, dma_handle, GFP_ATOMIC); |
} |
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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); |
} |
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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); |
} |
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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); |
} |
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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_addr_t)( (offset)+page_to_phys(page)); |
} |
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static inline void |
pci_unmap_page(struct pci_dev *hwdev, dma_addr_t dma_address, |
size_t size, int direction) |
{ |
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} |
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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); |
} |
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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); |
} |
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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); |
} |
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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); |
} |
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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); |
} |
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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); |
} |
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static inline int |
pci_dma_mapping_error(struct pci_dev *pdev, dma_addr_t dma_addr) |
{ |
return dma_mapping_error(&pdev->dev, dma_addr); |
} |
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#ifdef CONFIG_PCI |
static inline int pci_set_dma_mask(struct pci_dev *dev, u64 mask) |
{ |
return 0; |
} |
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#else |
static inline int pci_set_dma_mask(struct pci_dev *dev, u64 mask) |
{ return -EIO; } |
static inline int pci_set_consistent_dma_mask(struct pci_dev *dev, u64 mask) |
{ return -EIO; } |
static inline int pci_set_dma_max_seg_size(struct pci_dev *dev, |
unsigned int size) |
{ return -EIO; } |
static inline int pci_set_dma_seg_boundary(struct pci_dev *dev, |
unsigned long mask) |
{ return -EIO; } |
#endif |
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#endif |