1#config SGI_SN0_XXL 2# bool "IP27 XXL" 3# depends on SGI_IP27 4# This options adds support for userspace processes upto 16TB size. 5# Normally the limit is just .5TB. 6 7config SGI_SN0_N_MODE 8 bool "IP27 N-Mode" 9 depends on SGI_IP27 10 help 11 The nodes of Origin 200, Origin 2000 and Onyx 2 systems can be 12 configured in either N-Modes which allows for more nodes or M-Mode 13 which allows for more memory. Your system is most probably 14 running in M-Mode, so you should say N here. 15 16config ARCH_DISCONTIGMEM_ENABLE 17 bool 18 default y if SGI_IP27 19 help 20 Say Y to upport efficient handling of discontiguous physical memory, 21 for architectures which are either NUMA (Non-Uniform Memory Access) 22 or have huge holes in the physical address space for other reasons. 23 See <file:Documentation/vm/numa> for more. 24 25config NUMA 26 bool "NUMA Support" 27 depends on SGI_IP27 28 help 29 Say Y to compile the kernel to support NUMA (Non-Uniform Memory 30 Access). This option is for configuring high-end multiprocessor 31 server machines. If in doubt, say N. 32 33config MAPPED_KERNEL 34 bool "Mapped kernel support" 35 depends on SGI_IP27 36 help 37 Change the way a Linux kernel is loaded into memory on a MIPS64 38 machine. This is required in order to support text replication and 39 NUMA. If you need to understand it, read the source code. 40 41config REPLICATE_KTEXT 42 bool "Kernel text replication support" 43 depends on SGI_IP27 44 help 45 Say Y here to enable replicating the kernel text across multiple 46 nodes in a NUMA cluster. This trades memory for speed. 47 48config REPLICATE_EXHANDLERS 49 bool "Exception handler replication support" 50 depends on SGI_IP27 51 help 52 Say Y here to enable replicating the kernel exception handlers 53 across multiple nodes in a NUMA cluster. This trades memory for 54 speed. 55