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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-08-05 19:21:13 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-08-05 19:21:13 +0000 |
| commit | e67e4ad4b161bd60b9da4c1872a9d77e0cac95fa (patch) | |
| tree | 5c58f869f31ddb1f7bd6e8bdea269b680b36c5b6 /drivers/iommu/dma-iommu.c | |
| parent | Releasing progress-linux version 6.8.12-1~progress7.99u1. (diff) | |
| download | linux-e67e4ad4b161bd60b9da4c1872a9d77e0cac95fa.tar.xz linux-e67e4ad4b161bd60b9da4c1872a9d77e0cac95fa.zip | |
Merging upstream version 6.9.7.
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 | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/iommu/dma-iommu.c b/drivers/iommu/dma-iommu.c index 639efa0c40..e4cb26f6a9 100644 --- a/drivers/iommu/dma-iommu.c +++ b/drivers/iommu/dma-iommu.c @@ -859,6 +859,11 @@ static dma_addr_t __iommu_dma_map(struct device *dev, phys_addr_t phys, iommu_deferred_attach(dev, domain)) return DMA_MAPPING_ERROR; + /* If anyone ever wants this we'd need support in the IOVA allocator */ + if (dev_WARN_ONCE(dev, dma_get_min_align_mask(dev) > iova_mask(iovad), + "Unsupported alignment constraint\n")) + return DMA_MAPPING_ERROR; + size = iova_align(iovad, size + iova_off); iova = iommu_dma_alloc_iova(domain, size, dma_mask, dev); |