diff options
| -rw-r--r-- | kernel/dma/mapping.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/kernel/dma/mapping.c b/kernel/dma/mapping.c index 7911c754d9f4..864a1121bf08 100644 --- a/kernel/dma/mapping.c +++ b/kernel/dma/mapping.c @@ -569,6 +569,10 @@ u64 dma_get_required_mask(struct device *dev) if (dma_alloc_direct(dev, ops)) return dma_direct_get_required_mask(dev); + + if (use_dma_iommu(dev)) + return DMA_BIT_MASK(32); + if (ops->get_required_mask) return ops->get_required_mask(dev); @@ -909,7 +913,7 @@ bool dma_addressing_limited(struct device *dev) dma_get_required_mask(dev)) return true; - if (unlikely(ops)) + if (unlikely(ops) || use_dma_iommu(dev)) return false; return !dma_direct_all_ram_mapped(dev); } |