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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-06-19 21:00:37 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-06-19 21:00:37 +0000 |
commit | 94ac2ab3fff96814d7460a27a0e9d004abbd4128 (patch) | |
tree | 9a4eb8cc234b540b0f4b93363109cdd37a20540b /drivers/iommu/dma-iommu.c | |
parent | Adding debian version 6.8.12-1. (diff) | |
download | linux-94ac2ab3fff96814d7460a27a0e9d004abbd4128.tar.xz linux-94ac2ab3fff96814d7460a27a0e9d004abbd4128.zip |
Merging upstream version 6.9.2.
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); |