how can I disable IOMMU for PCIe devices on TX2 and TX2 4GB Jetson modules with L4T version 32.4.4? I’ve found instructions for older L4T versions, but they seem to be outdated due to changes in devicetree.
I need to disable IOMMU to debug and possibly workaround an issue with DMA memory locking in the kernel, about which I will share details later (after I better understand it).