#
# For a description of the syntax of this configuration file,
# see Documentation/kbuild/kconfig-language.txt.
#
config 64BIT
def_bool y
config MMU
bool
default y
config UID16
bool
config RWSEM_GENERIC_SPINLOCK
bool
config RWSEM_XCHGADD_ALGORITHM
bool
default y
config GENERIC_ISA_DMA
bool
default y
config HAVE_DEC_LOCK
bool
default y
config EARLY_PRINTK
bool
default y
config COMPAT
bool
default y
config FRAME_POINTER
bool
default y
# We optimistically allocate largepages from the VM, so make the limit
# large enough (16MB). This badly named config option is actually
# max order + 1
config FORCE_MAX_ZONEORDER
int
default "13"
source "init/Kconfig"
menu "Platform support"
choice
prompt "Platform Type"
default PPC_PSERIES
config PPC_ISERIES
bool "iSeries"
config PPC_PSERIES
bool "pSeries"
endchoice
config PPC
bool
default y
config PPC64
bool
default y
config SMP
bool "Symmetric multi-processing support"
---help---
This enables support for systems with more than one CPU. If you have
a system with only one CPU, say N. If you have a system with more
than one CPU, say Y.
If you say N here, the kernel will run on single and multiprocessor
machines, but will use only one CPU of a multiprocessor machine. If
you say Y here, the kernel will run on single-processor machines.
On a single-processor machine, the kernel will run faster if you say
N here.
If you don't know what to do here, say Y.
config IRQ_ALL_CPUS
bool "Distribute interrupts on all CPUs by default"
depends on SMP && PPC_PSERIES
help
This option gives the kernel permission to distribute IRQs across
multiple CPUs. Saying N here will route all IRQs to the first
CPU.
config NR_CPUS
int "Maximum number of CPUs (2-128)"
depends on SMP
default "32"
config HMT
bool "Hardware multithreading"
depends on SMP && PPC_PSERIES
config DISCONTIGMEM
bool "Discontiguous Memory Support"
depends on SMP && PPC_PSERIES
config NUMA
bool "NUMA support"
depends on DISCONTIGMEM
config PREEMPT
bool
help
This option reduces the latency of the kernel when reacting to
real-time or interactive events by allowing a low priority process to
be preempted even if it is in kernel mode executing a system call.
Unfortunately the kernel code has some race conditions if both
CONFIG_SMP and CONFIG_PREEMPT are enabled, so this option is
currently disabled if you are building an SMP kernel.
Say Y here if you are building a kernel for a desktop, embedded
or real-time system. Say N if you are unsure.
config MSCHUNKS
bool
depends on PPC_ISERIES
default y
config RTAS_FLASH
tristate "Firmware flash interface"
depends on !PPC_ISERIES
config SCANLOG
tristate "Scanlog dump interface"
depends on !PPC_ISERIES
config PPC_RTAS
bool "Proc interface to RTAS"
depends on !PPC_ISERIES
endmenu
menu "General setup"
config ISA
bool
help
Find out whether you have ISA slots on your motherboard. ISA is the
name of a bus system, i.e. the way the CPU talks to the other stuff
inside your box. If you have an Apple machine, say N here; if you
have an IBM RS/6000 or pSeries machine or a PReP machine, say Y. If
you have an embedded board, consult your board documentation.
config SBUS
bool
config MCA
bool
config EISA
bool
config PCI
bool
default y
help
Find out whether your system includes a PCI bus. PCI is the name of
a bus system, i.e. the way the CPU talks to the other stuff inside
your box. If you say Y here, the kernel will include drivers and
infrastructure code to support PCI bus devices.
config PCI_DOMAINS
bool
default PCI
source "fs/Kconfig.binfmt"
source "drivers/pci/Kconfig"
config HOTPLUG
bool "Support for hot-pluggable devices"
---help---
Say Y here if you want to plug devices into your computer while
the system is running, and be able to use them quickly. In many
cases, the devices can likewise be unplugged at any time too.
One well known example of this is PCMCIA- or PC-cards, credit-card
size devices such as network cards, modems or hard drives which are
plugged into slots found on all modern laptop computers. Another
example, used on modern desktops as well as laptops, is USB.
Enable HOTPLUG and KMOD, and build a modular kernel. Get agent
software (at <http://linux-hotplug.sourceforge.net/>) and install it.
Then your kernel will automatically call out to a user mode "policy
agent" (/sbin/hotplug) to load modules and set up software needed
to use devices as you hotplug them.
source "drivers/pcmcia/Kconfig"
source "drivers/pci/hotplug/Kconfig"
config PROC_DEVICETREE
bool "Support for Open Firmware device tree in /proc"
depends on !PPC_ISERIES
help
This option adds a device-tree directory under /proc which contains
an image of the device tree that the kernel copies from Open
Firmware. If unsure, say Y here.
config CMDLINE_BOOL
bool "Default bootloader kernel arguments"
depends on !PPC_ISERIES
config CMDLINE
string "Initial kernel command string"
depends on CMDLINE_BOOL
default "console=ttyS0,9600 console=tty0 root=/dev/sda2"
help
On some platforms, there is currently no way for the boot loader to
pass arguments to the kernel. For these platforms, you can supply
some command-line options at build time by entering them here. In
most cases you will need to specify the root device here.
endmenu
source "drivers/base/Kconfig"
source "drivers/mtd/Kconfig"
source "drivers/parport/Kconfig"
source "drivers/pnp/Kconfig"
source "drivers/block/Kconfig"
source "drivers/ide/Kconfig"
source "drivers/scsi/Kconfig"
source "drivers/md/Kconfig"
source "drivers/message/fusion/Kconfig"
source "drivers/ieee1394/Kconfig"
source "drivers/message/i2o/Kconfig"
source "net/Kconfig"
source "drivers/isdn/Kconfig"
source "drivers/telephony/Kconfig"
#
# input before char - char/joystick depends on it. As does USB.
#
source "drivers/input/Kconfig"
source "drivers/char/Kconfig"
source "drivers/media/Kconfig"
source "fs/Kconfig"
source "drivers/video/Kconfig"
source "sound/Kconfig"
source "drivers/usb/Kconfig"
menu "iSeries device drivers"
depends on PPC_ISERIES
config VIOCONS
tristate "iSeries Virtual Console Support"
config VIODASD
tristate "iSeries Virtual I/O disk support"
help
If you are running on an iSeries system and you want to use
virtual disks created and managed by OS/400, say Y.
config VIODASD_IDE
bool "iSeries Virtual disk IDE emulation"
depends on VIODASD
help
This causes the iSeries virtual disks to look like IDE disks.
If you have programs or utilities that only support certain
kinds of disks, this option will cause iSeries virtual disks
to pretend to be IDE disks, which may satisfy the program.
config VIOCD
tristate "iSeries Virtual I/O CD support"
help
If you are running Linux on an IBM iSeries system and you want to
read a CD drive owned by OS/400, say Y here.
config VIOCD_AZTECH
bool "iSeries Virtual CD Aztech emulation"
depends on VIOCD
config VIOTAPE
tristate "iSeries Virtual Tape Support"
help
If you are running Linux on an iSeries system and you want Linux
to read and/or write a tape drive owned by OS/400, say Y here.
config VETH
tristate "iSeries Virtual Ethernet driver support"
endmenu
config VIOPATH
bool
depends on PPC_ISERIES
default y
source "arch/ppc64/oprofile/Kconfig"
menu "Kernel hacking"
config DEBUG_KERNEL
bool "Kernel debugging"
help
Say Y here if you are developing drivers or trying to debug and
identify kernel problems.
config DEBUG_SLAB
bool "Debug memory allocations"
depends on DEBUG_KERNEL
help
Say Y here to have the kernel do limited verification on memory
allocation as well as poisoning memory on free to catch use of freed
memory.
config MAGIC_SYSRQ
bool "Magic SysRq key"
depends on DEBUG_KERNEL
help
If you say Y here, you will have some control over the system even
if the system crashes for example during kernel debugging (e.g., you
will be able to flush the buffer cache to disk, reboot the system
immediately or dump some status information). This is accomplished
by pressing various keys while holding SysRq (Alt+PrintScreen). It
also works on a serial console (on PC hardware at least), if you
send a BREAK and then within 5 seconds a command keypress. The
keys are documented in <file:Documentation/sysrq.txt>. Don't say Y
unless you really know what this hack does.
config XMON
bool "Include xmon kernel debugger"
depends on DEBUG_KERNEL
help
Include in-kernel hooks for the xmon kernel monitor/debugger.
Unless you are intending to debug the kernel, say N here.
config XMON_DEFAULT
bool "Enable xmon by default"
depends on XMON
config PPCDBG
bool "Include PPCDBG realtime debugging"
depends on DEBUG_KERNEL
config DEBUG_INFO
bool "Compile the kernel with debug info"
depends on DEBUG_KERNEL
help
If you say Y here the resulting kernel image will include
debugging info resulting in a larger kernel image.
Say Y here only if you plan to use gdb to debug the kernel.
If you don't debug the kernel, you can say N.
endmenu
source "security/Kconfig"
source "crypto/Kconfig"
source "lib/Kconfig"