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Commit e4ad68b6 authored by Joerg Roedel's avatar Joerg Roedel Committed by Ingo Molnar
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x86: add free_coherent dma_ops callback to Calgary IOMMU driver 



Signed-off-by: default avatarJoerg Roedel <joerg.roedel@amd.com>
Acked-by: default avatarMuli Ben-Yehuda <muli@il.ibm.com>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent 43a5a5a0

arch/x86/kernel/pci-calgary_64.c

+14 −0
Original line number Diff line number Diff line
@@ -511,8 +511,22 @@ static void* calgary_alloc_coherent(struct device *dev, size_t size, 
	return ret;

}



static void calgary_free_coherent(struct device *dev, size_t size,

				  void *vaddr, dma_addr_t dma_handle)

{

	unsigned int npages;

	struct iommu_table *tbl = find_iommu_table(dev);



	size = PAGE_ALIGN(size);

	npages = size >> PAGE_SHIFT;



	iommu_free(tbl, dma_handle, npages);

	free_pages((unsigned long)vaddr, get_order(size));

}



static struct dma_mapping_ops calgary_dma_ops = {

	.alloc_coherent = calgary_alloc_coherent,

	.free_coherent = calgary_free_coherent,

	.map_single = calgary_map_single,

	.unmap_single = calgary_unmap_single,

	.map_sg = calgary_map_sg,