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sparc: Add pci32_unmap_page.
Signed-off-by: Kristoffer Glembo <kristoffer@gaisler.com> Acked-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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1 changed files with 8 additions and 0 deletions
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@ -524,6 +524,13 @@ static dma_addr_t pci32_map_page(struct device *dev, struct page *page,
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return page_to_phys(page) + offset;
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}
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static void pci32_unmap_page(struct device *dev, dma_addr_t ba, size_t size,
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enum dma_data_direction dir, struct dma_attrs *attrs)
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{
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if (dir != PCI_DMA_TODEVICE)
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mmu_inval_dma_area((unsigned long)phys_to_virt(ba), PAGE_ALIGN(size));
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}
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/* Map a set of buffers described by scatterlist in streaming
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* mode for DMA. This is the scather-gather version of the
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* above pci_map_single interface. Here the scatter gather list
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@ -646,6 +653,7 @@ struct dma_map_ops pci32_dma_ops = {
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.alloc_coherent = pci32_alloc_coherent,
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.free_coherent = pci32_free_coherent,
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.map_page = pci32_map_page,
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.unmap_page = pci32_unmap_page,
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.map_sg = pci32_map_sg,
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.unmap_sg = pci32_unmap_sg,
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.sync_single_for_cpu = pci32_sync_single_for_cpu,
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