diff options
Diffstat (limited to 'include/asm-sparc64/pci.h')
| -rw-r--r-- | include/asm-sparc64/pci.h | 19 |
1 files changed, 13 insertions, 6 deletions
diff --git a/include/asm-sparc64/pci.h b/include/asm-sparc64/pci.h index 881de6c2f..267cbf797 100644 --- a/include/asm-sparc64/pci.h +++ b/include/asm-sparc64/pci.h @@ -40,7 +40,7 @@ extern void pci_free_consistent(struct pci_dev *hwdev, size_t size, void *vaddr, * Once the device is given the dma address, the device owns this memory * until either pci_unmap_single or pci_dma_sync_single is performed. */ -extern dma_addr_t pci_map_single(struct pci_dev *hwdev, void *ptr, size_t size); +extern dma_addr_t pci_map_single(struct pci_dev *hwdev, void *ptr, size_t size, int direction); /* Unmap a single streaming mode DMA translation. The dma_addr and size * must match what was provided for in a previous pci_map_single call. All @@ -49,7 +49,7 @@ extern dma_addr_t pci_map_single(struct pci_dev *hwdev, void *ptr, size_t size); * After this call, reads by the cpu to the buffer are guarenteed to see * whatever the device wrote there. */ -extern void pci_unmap_single(struct pci_dev *hwdev, dma_addr_t dma_addr, size_t size); +extern void pci_unmap_single(struct pci_dev *hwdev, dma_addr_t dma_addr, size_t size, int direction); /* Map a set of buffers described by scatterlist in streaming * mode for DMA. This is the scather-gather version of the @@ -66,13 +66,13 @@ extern void pci_unmap_single(struct pci_dev *hwdev, dma_addr_t dma_addr, size_t * Device ownership issues as mentioned above for pci_map_single are * the same here. */ -extern int pci_map_sg(struct pci_dev *hwdev, struct scatterlist *sg, int nents); +extern int pci_map_sg(struct pci_dev *hwdev, struct scatterlist *sg, int nents, int direction); /* Unmap a set of streaming mode DMA translations. * Again, cpu read rules concerning calls here are the same as for * pci_unmap_single() above. */ -extern void pci_unmap_sg(struct pci_dev *hwdev, struct scatterlist *sg, int nhwents); +extern void pci_unmap_sg(struct pci_dev *hwdev, struct scatterlist *sg, int nhwents, int direction); /* Make physical memory consistent for a single * streaming mode DMA translation after a transfer. @@ -83,7 +83,7 @@ extern void pci_unmap_sg(struct pci_dev *hwdev, struct scatterlist *sg, int nhwe * next point you give the PCI dma address back to the card, the * device again owns the buffer. */ -extern void pci_dma_sync_single(struct pci_dev *hwdev, dma_addr_t dma_handle, size_t size); +extern void pci_dma_sync_single(struct pci_dev *hwdev, dma_addr_t dma_handle, size_t size, int direction); /* Make physical memory consistent for a set of streaming * mode DMA translations after a transfer. @@ -91,7 +91,14 @@ extern void pci_dma_sync_single(struct pci_dev *hwdev, dma_addr_t dma_handle, si * The same as pci_dma_sync_single but for a scatter-gather list, * same rules and usage. */ -extern void pci_dma_sync_sg(struct pci_dev *hwdev, struct scatterlist *sg, int nelems); +extern void pci_dma_sync_sg(struct pci_dev *hwdev, struct scatterlist *sg, int nelems, int direction); + +/* 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 int pci_dma_supported(struct pci_dev *hwdev, dma_addr_t mask); #endif /* __KERNEL__ */ |