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Diffstat (limited to 'drivers/iommu/dma-iommu.c')
-rw-r--r--drivers/iommu/dma-iommu.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/iommu/dma-iommu.c b/drivers/iommu/dma-iommu.c
index e86ae462cade..e57724163835 100644
--- a/drivers/iommu/dma-iommu.c
+++ b/drivers/iommu/dma-iommu.c
@@ -615,7 +615,8 @@ static int iommu_dma_init_domain(struct iommu_domain *domain, dma_addr_t base,
goto done_unlock;
/* If the FQ fails we can simply fall back to strict mode */
- if (domain->type == IOMMU_DOMAIN_DMA_FQ && iommu_dma_init_fq(domain))
+ if (domain->type == IOMMU_DOMAIN_DMA_FQ &&
+ (!device_iommu_capable(dev, IOMMU_CAP_DEFERRED_FLUSH) || iommu_dma_init_fq(domain)))
domain->type = IOMMU_DOMAIN_DMA;
ret = iova_reserve_iommu_regions(dev, domain);