diff --git a/drivers/iommu/dma-mapping-fast.c b/drivers/iommu/dma-mapping-fast.c
index 71de9ac0f3be..8c7d6a5b78a8 100644
--- a/drivers/iommu/dma-mapping-fast.c
+++ b/drivers/iommu/dma-mapping-fast.c
@@ -893,6 +893,7 @@ static void fast_smmu_reserve_pci_windows(struct device *dev,
 		start = (start - mapping->base) >> FAST_PAGE_SHIFT;
 		end = (end - mapping->base) >> FAST_PAGE_SHIFT;
 		bitmap_set(mapping->bitmap, start, end - start);
+		bitmap_set(mapping->clean_bitmap, start, end - start);
 	}
 	spin_unlock_irqrestore(&mapping->lock, flags);
 }