Messages in this thread Patch in this message | | | From | Sai Prakash Ranjan <> | Subject | [PATCHv3 3/6] iommu/arm-smmu: Implement iommu_ops->def_domain_type call-back | Date | Mon, 20 Apr 2020 22:12:01 +0530 |
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Implement the new def_domain_type call-back for the ARM SMMU driver. We need this to support requesting the domain type by the client devices.
Signed-off-by: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org> --- drivers/iommu/arm-smmu.c | 12 ++++++++++++ 1 file changed, 12 insertions(+)
diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c index e622f4e33379..b345a86085ce 100644 --- a/drivers/iommu/arm-smmu.c +++ b/drivers/iommu/arm-smmu.c @@ -1609,6 +1609,17 @@ static void arm_smmu_get_resv_regions(struct device *dev, iommu_dma_get_resv_regions(dev, head); } +static int arm_smmu_def_domain_type(struct device *dev) +{ + struct arm_smmu_master_cfg *cfg = dev_iommu_priv_get(dev); + const struct arm_smmu_impl *impl = cfg->smmu->impl; + + if (impl && impl->def_domain_type) + return impl->def_domain_type(dev); + + return 0; +} + static struct iommu_ops arm_smmu_ops = { .capable = arm_smmu_capable, .domain_alloc = arm_smmu_domain_alloc, @@ -1627,6 +1638,7 @@ static struct iommu_ops arm_smmu_ops = { .of_xlate = arm_smmu_of_xlate, .get_resv_regions = arm_smmu_get_resv_regions, .put_resv_regions = generic_iommu_put_resv_regions, + .def_domain_type = arm_smmu_def_domain_type, .pgsize_bitmap = -1UL, /* Restricted during device attach */ }; -- QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, hosted by The Linux Foundation
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