| #config SGI_SN0_XXL |
| # bool "IP27 XXL" |
| # depends on SGI_IP27 |
| # This options adds support for userspace processes upto 16TB size. |
| # Normally the limit is just .5TB. |
| |
| config SGI_SN0_N_MODE |
| bool "IP27 N-Mode" |
| depends on SGI_IP27 |
| help |
| The nodes of Origin 200, Origin 2000 and Onyx 2 systems can be |
| configured in either N-Modes which allows for more nodes or M-Mode |
| which allows for more memory. Your system is most probably |
| running in M-Mode, so you should say N here. |
| |
| config ARCH_DISCONTIGMEM_ENABLE |
| bool |
| default y if SGI_IP27 |
| help |
| Say Y to upport efficient handling of discontiguous physical memory, |
| for architectures which are either NUMA (Non-Uniform Memory Access) |
| or have huge holes in the physical address space for other reasons. |
| See <file:Documentation/vm/numa> for more. |
| |
| config NUMA |
| bool "NUMA Support" |
| depends on SGI_IP27 |
| help |
| Say Y to compile the kernel to support NUMA (Non-Uniform Memory |
| Access). This option is for configuring high-end multiprocessor |
| server machines. If in doubt, say N. |
| |
| config MAPPED_KERNEL |
| bool "Mapped kernel support" |
| depends on SGI_IP27 |
| help |
| Change the way a Linux kernel is loaded into memory on a MIPS64 |
| machine. This is required in order to support text replication and |
| NUMA. If you need to understand it, read the source code. |
| |
| config REPLICATE_KTEXT |
| bool "Kernel text replication support" |
| depends on SGI_IP27 |
| help |
| Say Y here to enable replicating the kernel text across multiple |
| nodes in a NUMA cluster. This trades memory for speed. |
| |
| config REPLICATE_EXHANDLERS |
| bool "Exception handler replication support" |
| depends on SGI_IP27 |
| help |
| Say Y here to enable replicating the kernel exception handlers |
| across multiple nodes in a NUMA cluster. This trades memory for |
| speed. |