On Mon, Jan 31, 2022 at 2:11 PM David Hildenbrand <david@xxxxxxxxxx> wrote: > > ... and call node_dev_init() after memory_dev_init() from driver_init(), > so before any of the existing arch/subsys calls. All online nodes should > be known at that point. > > This is in line with memory_dev_init(), which initializes the memory > device subsystem and creates all memory block devices. > > Similar to memory_dev_init(), panic() if anything goes wrong, we don't > want to continue with such basic initialization errors. > > The important part is that node_dev_init() gets called after > memory_dev_init() and after cpu_dev_init(), but before any of the > relevant archs call register_cpu() to register the new cpu device under > the node device. The latter should be the case for the current users > of topology_init(). > > RFC because I tested only on x86-64 and s390x, I think I cross-compiled all > applicable architectures except riscv and sparc. Compiled and boot tested on sparc. Tested-by: Anatoly Pugachev <matorola@xxxxxxxxx> (sparc64)
