Messages in this thread Patch in this message |  | | Date | Sat, 28 Nov 2020 18:15:00 +0100 | From | Christoph Hellwig <> | Subject | Re: 5.10 regression caused by: "uas: fix sdev->host->dma_dev": many XHCI swiotlb buffer is full / DMAR: Device bounce map failed errors on thunderbolt connected XHCI controller |
| |
Can you give this one-liner a spin?
diff --git a/drivers/iommu/intel/iommu.c b/drivers/iommu/intel/iommu.c index c6622011d4938c..e889111b55c71d 100644 --- a/drivers/iommu/intel/iommu.c +++ b/drivers/iommu/intel/iommu.c @@ -4007,6 +4007,7 @@ static const struct dma_map_ops bounce_dma_ops = { .alloc_pages = dma_common_alloc_pages, .free_pages = dma_common_free_pages, .dma_supported = dma_direct_supported, + .max_mapping_size = swiotlb_max_mapping_size, }; static inline int iommu_domain_cache_init(void)
|  |