Dynamically choose strict or non-strict mode for page table config based
on the iommu domain type.
Signed-off-by: Zhen Lei <thunder.leiz...@huawei.com>
---
drivers/iommu/arm-smmu-v3.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/iommu/arm-smmu-v3.c b/drivers/iommu/arm-smmu-v3.c
index 4402187..61eb7ec 100644
--- a/drivers/iommu/arm-smmu-v3.c
+++ b/drivers/iommu/arm-smmu-v3.c
@@ -1622,6 +1622,11 @@ static int arm_smmu_domain_finalise(struct iommu_domain
*domain)
if (smmu->features & ARM_SMMU_FEAT_COHERENCY)
pgtbl_cfg.quirks = IO_PGTABLE_QUIRK_NO_DMA;
+ if (domain->type == IOMMU_DOMAIN_DMA) {
+ domain->non_strict = true;
+ pgtbl_cfg.quirks |= IO_PGTABLE_QUIRK_NON_STRICT;
+ }
+
pgtbl_ops = alloc_io_pgtable_ops(fmt, &pgtbl_cfg, smmu_domain);
if (!pgtbl_ops)
return -ENOMEM;
--
1.8.3
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