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# SPDX-License-Identifier: GPL-2.0
choice
prompt "Node addressing mode"
depends on SGI_IP27
default SGI_SN_M_MODE
config SGI_SN_M_MODE
bool "IP27 M-Mode"
help
The nodes of Origin, Onyx, Fuel and Tezro systems can be configured
in either N-Modes which allows for more nodes or M-Mode which allows
for more memory. Your hardware is almost certainly running in
M-Mode, so choose M-mode here.
config SGI_SN_N_MODE
bool "IP27 N-Mode"
help
The nodes of Origin, Onyx, Fuel and Tezro systems can be configured
in either N-Modes which allows for more nodes or M-Mode which allows
for more memory. Your hardware is almost certainly running in
M-Mode, so choose M-mode here.
endchoice
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 on
NUMA. If you need to understand it, read the source code.
config REPLICATE_KTEXT
bool "Kernel text replication support"
depends on SGI_IP27
select MAPPED_KERNEL
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.