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Commit b8682cef authored by Kristoffer Glembo's avatar Kristoffer Glembo Committed by David S. Miller
Browse files

sparc: Add pci32_unmap_page. 



Signed-off-by: default avatarKristoffer Glembo <kristoffer@gaisler.com>
Acked-by: default avatarSam Ravnborg <sam@ravnborg.org>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 5c8345bb

arch/sparc/kernel/ioport.c

+8 −0
Original line number Diff line number Diff line
@@ -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,