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Commit 1d32251e authored by Ian Campbell's avatar Ian Campbell Committed by Ingo Molnar
Browse files

x86/swiotlb: add default phys<->bus conversion 



Xen will override these later on.

Signed-off-by: default avatarIan Campbell <ian.campbell@citrix.com>
Signed-off-by: default avatarJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent cfb80c9e

arch/x86/kernel/pci-swiotlb_64.c

+10 −0
Original line number Diff line number Diff line
@@ -23,6 +23,16 @@ void *swiotlb_alloc(unsigned order, unsigned long nslabs) 
	return (void *)__get_free_pages(GFP_DMA | __GFP_NOWARN, order);

}



dma_addr_t swiotlb_phys_to_bus(phys_addr_t paddr)

{

	return paddr;

}



phys_addr_t swiotlb_bus_to_phys(dma_addr_t baddr)

{

	return baddr;

}



static dma_addr_t

swiotlb_map_single_phys(struct device *hwdev, phys_addr_t paddr, size_t size,

			int direction)