This is what I have so far, which at least resolves the most ovbious problems. I still haven't got very far with the USB corruption issue I see on Juno with -rc1, but I'm yet to confirm whether that's actually attributable to the SWIOTLB changes or something else entirely.
Robin. Robin Murphy (2): swiotlb: Make DIRECT_MAPPING_ERROR viable swiotlb: Skip cache maintenance on map error include/linux/dma-direct.h | 2 +- kernel/dma/swiotlb.c | 3 ++- 2 files changed, 3 insertions(+), 2 deletions(-) -- 2.19.1.dirty _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu