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35a32c5
(Get the code!)
Sorry for the late response. Ok, the log shows the driver goes in 32bit DMA mode (which should be right). The question is why the SWIOMMU fails to provide DMA space. The bitsize of 32 sound valid so the tuneable would be swiotlb. Be aware that the unit there is a page, so using 64K there takes away 256M.