dma-direct: correct the physical addr in dma_direct_sync_sg_for_cpu/device
dma_map_sg() may use swiotlb buffer when the kernel command line includes "swiotlb=force" or the dma_addr is out of dev->dma_mask range. After DMA complete the memory moving from device to memory, then user call dma_sync_sg_for_cpu() to sync with DMA buffer, and copy the original virtual buffer to other space. So dma_direct_sync_sg_for_cpu() should use swiotlb physical addr, not the original physical addr from sg_phys(sg). dma_direct_sync_sg_for_device() also has the same issue, correct it as well. Fixes: 55897af6("dma-direct: merge swiotlb_dma_ops into the dma_direct code") Signed-off-by: NFugang Duan <fugang.duan@nxp.com> Reviewed-by: NRobin Murphy <robin.murphy@arm.com> Signed-off-by: NChristoph Hellwig <hch@lst.de>
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