On Mon, 10 Nov 2014, j.glisse@xxxxxxxxx wrote: > In a nutshell HMM is a subsystem that provide an easy to use api to mirror a > process address on a device with minimal hardware requirement (mainly device > page fault and read only page mapping). This does not rely on ATS and PASID > PCIE extensions. It intends to supersede those extensions by allowing to move > system memory to device memory in a transparent fashion for core kernel mm > code (ie cpu page fault on page residing in device memory will trigger > migration back to system memory). Could we define a new NUMA node that maps memory from the GPU and then simply use the existing NUMA features to move a process over there. -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html