How to disable Jetson AGX Orig iommu

Hello, I want to disable Jetson AGX Orig iommu? I read this post, but there is no CONFIG_ARM_SMMU_DISABLE_BYPASS_BY_DEFAULT option. Is iommu disabled by default?

Then please just remove iommus property from your client node.

Could i use iommu.passthrough=1?

how to disable PCIe iommu on jetson AGX Orig? Have a patch?

Sorry for the late response, is this still an issue to support? Thanks

yes,still a problem