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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-16 03:22:49 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-16 03:22:49 +0000 |
commit | 87662aef9c2f9405ca8937c07372641e69113654 (patch) | |
tree | 612907d41d90d34f497c4bfbbfd9fbd368d2a1d7 /drivers/iommu/dma-iommu.c | |
parent | Adding debian version 6.1.82-1. (diff) | |
download | linux-87662aef9c2f9405ca8937c07372641e69113654.tar.xz linux-87662aef9c2f9405ca8937c07372641e69113654.zip |
Merging upstream version 6.1.85.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/iommu/dma-iommu.c')
-rw-r--r-- | drivers/iommu/dma-iommu.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/iommu/dma-iommu.c b/drivers/iommu/dma-iommu.c index aa6d62cc5..3fa66dba0 100644 --- a/drivers/iommu/dma-iommu.c +++ b/drivers/iommu/dma-iommu.c @@ -1547,6 +1547,14 @@ static size_t iommu_dma_opt_mapping_size(void) return iova_rcache_range(); } +static size_t iommu_dma_max_mapping_size(struct device *dev) +{ + if (dev_is_untrusted(dev)) + return swiotlb_max_mapping_size(dev); + + return SIZE_MAX; +} + static const struct dma_map_ops iommu_dma_ops = { .flags = DMA_F_PCI_P2PDMA_SUPPORTED, .alloc = iommu_dma_alloc, @@ -1569,6 +1577,7 @@ static const struct dma_map_ops iommu_dma_ops = { .unmap_resource = iommu_dma_unmap_resource, .get_merge_boundary = iommu_dma_get_merge_boundary, .opt_mapping_size = iommu_dma_opt_mapping_size, + .max_mapping_size = iommu_dma_max_mapping_size, }; /* |