Old style AMD Opteron NUMA detection

modulename: amdtopology.ko

configname: CONFIG_AMD_NUMA

Linux Kernel Configuration
└─>Processor type and features
└─>Old style AMD Opteron NUMA detection
In linux kernel since version 2.6.38 (release Date: 2011-03-14)  
Enable AMD NUMA node topology detection. You should say Y here if
you have a multi processor AMD system. This uses an old method to
read the NUMA configuration directly from the builtin Northbridge
of Opteron. It is recommended to use X86_64_ACPI_NUMA instead,
which also takes priority if both are compiled in.

source code: