x86/swiotlb: add default swiotlb_arch_range_needs_mapping
Xen will override these later on. Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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@ -33,6 +33,11 @@ phys_addr_t swiotlb_bus_to_phys(dma_addr_t baddr)
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return baddr;
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}
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int __weak swiotlb_arch_range_needs_mapping(void *ptr, size_t size)
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{
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return 0;
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}
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static dma_addr_t
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swiotlb_map_single_phys(struct device *hwdev, phys_addr_t paddr, size_t size,
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int direction)
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