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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>
This commit is contained in:
Kristoffer Glembo 2011-01-18 04:10:25 +00:00 committed by David S. Miller
parent 5c8345bbe8
commit b8682cefb8
1 changed files with 8 additions and 0 deletions
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8
arch/sparc/kernel/ioport.c
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@ -524,6 +524,13 @@ static dma_addr_t pci32_map_page(struct device *dev, struct page *page,
return page_to_phys(page) + offset;
}
static void pci32_unmap_page(struct device *dev, dma_addr_t ba, size_t size,
enum dma_data_direction dir, struct dma_attrs *attrs)
{
if (dir != PCI_DMA_TODEVICE)
mmu_inval_dma_area((unsigned long)phys_to_virt(ba), PAGE_ALIGN(size));
}
/* Map a set of buffers described by scatterlist in streaming
* mode for DMA. This is the scather-gather version of the
* above pci_map_single interface. Here the scatter gather list
@ -646,6 +653,7 @@ struct dma_map_ops pci32_dma_ops = {
.alloc_coherent = pci32_alloc_coherent,
.free_coherent = pci32_free_coherent,
.map_page = pci32_map_page,
.unmap_page = pci32_unmap_page,
.map_sg = pci32_map_sg,
.unmap_sg = pci32_unmap_sg,
.sync_single_for_cpu = pci32_sync_single_for_cpu,