diff options
Diffstat (limited to 'include/asm-ppc/pci.h')
| -rw-r--r-- | include/asm-ppc/pci.h | 34 |
1 files changed, 28 insertions, 6 deletions
diff --git a/include/asm-ppc/pci.h b/include/asm-ppc/pci.h index 92347e406..5d022e02c 100644 --- a/include/asm-ppc/pci.h +++ b/include/asm-ppc/pci.h @@ -27,38 +27,60 @@ extern void *pci_alloc_consistent(struct pci_dev *hwdev, size_t size, extern void pci_free_consistent(struct pci_dev *hwdev, size_t size, void *vaddr, dma_addr_t dma_handle); extern inline dma_addr_t pci_map_single(struct pci_dev *hwdev, void *ptr, - size_t size) + size_t size, int direction) { + if (direction == PCI_DMA_NONE) + BUG(); return virt_to_bus(ptr); } extern inline void pci_unmap_single(struct pci_dev *hwdev, dma_addr_t dma_addr, - size_t size) + size_t size, int direction) { + if (direction == PCI_DMA_NONE) + BUG(); /* nothing to do */ } extern inline int pci_map_sg(struct pci_dev *hwdev, struct scatterlist *sg, - int nents) + int nents, int direction) { + if (direction == PCI_DMA_NONE) + BUG(); return nents; } extern inline void pci_unmap_sg(struct pci_dev *hwdev, struct scatterlist *sg, - int nents) + int nents, int direction) { + if (direction == PCI_DMA_NONE) + BUG(); /* nothing to do */ } extern inline void pci_dma_sync_single(struct pci_dev *hwdev, dma_addr_t dma_handle, - size_t size) + size_t size, int direction) { + if (direction == PCI_DMA_NONE) + BUG(); /* nothing to do */ } extern inline void pci_dma_syng_sg(struct pci_dev *hwdev, struct scatterlist *sg, - int nelems) + int nelems, int direction) { + if (direction == PCI_DMA_NONE) + BUG(); /* nothing to do */ } +/* Return whether the given PCI device DMA address mask can + * be supported properly. For example, if your device can + * only drive the low 24-bits during PCI bus mastering, then + * you would pass 0x00ffffff as the mask to this function. + */ +extern inline int pci_dma_supported(struct pci_dev *hwdev, dma_addr_t mask) +{ + return 1; +} + #define sg_dma_address(sg) (virt_to_bus((sg)->address)) #define sg_dma_len(sg) ((sg)->length) |