# $Id: config.in,v 1.113 2002/01/24 22:14:44 davem Exp $
# For a description of the syntax of this configuration file,
# see Documentation/kbuild/kconfig-language.txt.
#
mainmenu "Linux/SPARC Kernel Configuration"
config MMU
bool
default y
config UID16
bool
default y
config HIGHMEM
bool
default y
config GENERIC_ISA_DMA
bool
default y
source "init/Kconfig"
menu "General machine setup"
config VT
bool
select INPUT
default y
---help---
If you say Y here, you will get support for terminal devices with
display and keyboard devices. These are called "virtual" because you
can run several virtual terminals (also called virtual consoles) on
one physical terminal. This is rather useful, for example one
virtual terminal can collect system messages and warnings, another
one can be used for a text-mode user session, and a third could run
an X session, all in parallel. Switching between virtual terminals
is done with certain key combinations, usually Alt-<function key>.
The setterm command ("man setterm") can be used to change the
properties (such as colors or beeping) of a virtual terminal. The
man page console_codes(4) ("man console_codes") contains the special
character sequences that can be used to change those properties
directly. The fonts used on virtual terminals can be changed with
the setfont ("man setfont") command and the key bindings are defined
with the loadkeys ("man loadkeys") command.
You need at least one virtual terminal device in order to make use
of your keyboard and monitor. Therefore, only people configuring an
embedded system would want to say N here in order to save some
memory; the only way to log into such a system is then via a serial
or network connection.
If unsure, say Y, or else you won't be able to do much with your new
shiny Linux system :-)
config VT_CONSOLE
bool
default y
---help---
The system console is the device which receives all kernel messages
and warnings and which allows logins in single user mode. If you
answer Y here, a virtual terminal (the device used to interact with
a physical terminal) can be used as system console. This is the most
common mode of operations, so you should say Y here unless you want
the kernel messages be output only to a serial port (in which case
you should say Y to "Console on serial port", below).
If you do say Y here, by default the currently visible virtual
terminal (/dev/tty0) will be used as system console. You can change
that with a kernel command line option such as "console=tty3" which
would use the third virtual terminal as system console. (Try "man
bootparam" or see the documentation of your boot loader (lilo or
loadlin) about how to pass options to the kernel at boot time.)
If unsure, say Y.
config HW_CONSOLE
bool
default y
config SMP
bool "Symmetric multi-processing support (does not work on sun4/sun4c)"
depends on BROKEN
---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 many, but not all,
singleprocessor machines. On a singleprocessor machine, the kernel
will run faster if you say N here.
People using multiprocessor machines who say Y here should also say
Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
Management" code will be disabled if you say Y here.
See also the <file:Documentation/smp.txt>,
<file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
<http://www.tldp.org/docs.html#howto>.
If you don't know what to do here, say N.
config NR_CPUS
int "Maximum number of CPUs (2-32)"
range 2 32
depends on SMP
default "32"
# Identify this as a Sparc32 build
config SPARC32
bool
default y
help
SPARC is a family of RISC microprocessors designed and marketed by
Sun Microsystems, incorporated. They are very widely found in Sun
workstations and clones. This port covers the original 32-bit SPARC;
it is old and stable and usually considered one of the "big three"
along with the Intel and Alpha ports. The UltraLinux project
maintains both the SPARC32 and SPARC64 ports; its web page is
available at <http://www.ultralinux.org/>.
# Global things across all Sun machines.
config ISA
bool
help
ISA is found on Espresso only and is not supported currently.
Say N
config EISA
bool
help
EISA is not supported.
Say N
config MCA
bool
help
MCA is not supported.
Say N
config PCMCIA
tristate
---help---
Say Y here if you want to attach PCMCIA- or PC-cards to your Linux
computer. These are credit-card size devices such as network cards,
modems or hard drives often used with laptops computers. There are
actually two varieties of these cards: the older 16 bit PCMCIA cards
and the newer 32 bit CardBus cards. If you want to use CardBus
cards, you need to say Y here and also to "CardBus support" below.
To use your PC-cards, you will need supporting software from David
Hinds' pcmcia-cs package (see the file <file:Documentation/Changes>
for location). Please also read the PCMCIA-HOWTO, available from
<http://www.tldp.org/docs.html#howto>.
To compile this driver as modules, choose M here: the
modules will be called pcmcia_core and ds.
config SBUS
bool
default y
config SBUSCHAR
bool
default y
config SERIAL_CONSOLE
bool
default y
---help---
If you say Y here, it will be possible to use a serial port as the
system console (the system console is the device which receives all
kernel messages and warnings and which allows logins in single user
mode). This could be useful if some terminal or printer is connected
to that serial port.
Even if you say Y here, the currently visible virtual console
(/dev/tty0) will still be used as the system console by default, but
you can alter that using a kernel command line option such as
"console=ttyS1". (Try "man bootparam" or see the documentation of
your boot loader (silo) about how to pass options to the kernel at
boot time.)
If you don't have a graphics card installed and you say Y here, the
kernel will automatically use the first serial line, /dev/ttyS0, as
system console.
If unsure, say N.
config SUN_AUXIO
bool
default y
config SUN_IO
bool
default y
config RWSEM_GENERIC_SPINLOCK
bool
default y
config RWSEM_XCHGADD_ALGORITHM
bool
config GENERIC_CALIBRATE_DELAY
bool
default y
config SUN_PM
bool
default y
help
Enable power management and CPU standby features on supported
SPARC platforms.
config SUN4
bool "Support for SUN4 machines (disables SUN4[CDM] support)"
depends on !SMP
default n
help
Say Y here if, and only if, your machine is a sun4. Note that
a kernel compiled with this option will run only on sun4.
(And the current version will probably work only on sun4/330.)
if !SUN4
config PCI
bool "Support for PCI and PS/2 keyboard/mouse"
help
CONFIG_PCI is needed for all JavaStation's (including MrCoffee),
CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC.
All of these platforms are extremely obscure, so say N if unsure.
source "drivers/pci/Kconfig"
endif
config SUN_OPENPROMFS
tristate "Openprom tree appears in /proc/openprom"
help
If you say Y, the OpenPROM device tree will be available as a
virtual file system, which you can mount to /proc/openprom by "mount
-t openpromfs none /proc/openprom".
To compile the /proc/openprom support as a module, choose M here: the
module will be called openpromfs.
Only choose N if you know in advance that you will not need to modify
OpenPROM settings on the running system.
source "fs/Kconfig.binfmt"
config SUNOS_EMUL
bool "SunOS binary emulation"
help
This allows you to run most SunOS binaries. If you want to do this,
say Y here and place appropriate files in /usr/gnemul/sunos. See
<http://www.ultralinux.org/faq.html> for more information. If you
want to run SunOS binaries on an Ultra you must also say Y to
"Kernel support for 32-bit a.out binaries" above.
source "drivers/parport/Kconfig"
config PRINTER
tristate "Parallel printer support"
depends on PARPORT
---help---
If you intend to attach a printer to the parallel port of your Linux
box (as opposed to using a serial printer; if the connector at the
printer has 9 or 25 holes ["female"], then it's serial), say Y.
Also read the Printing-HOWTO, available from
<http://www.tldp.org/docs.html#howto>.
It is possible to share one parallel port among several devices
(e.g. printer and ZIP drive) and it is safe to compile the
corresponding drivers into the kernel. If you want to compile this
driver as a module however, choose M here and read
<file:Documentation/parport.txt>. The module will be called lp.
If you have several parallel ports, you can specify which ports to
use with the "lp" kernel command line option. (Try "man bootparam"
or see the documentation of your boot loader (silo) about how to pass
options to the kernel at boot time.) The syntax of the "lp" command
line option can be found in <file:drivers/char/lp.c>.
If you have more than 8 printers, you need to increase the LP_NO
macro in lp.c and the PARPORT_MAX macro in parport.h.
source "mm/Kconfig"
endmenu
source "drivers/base/Kconfig"
source "drivers/video/Kconfig"
source "drivers/mtd/Kconfig"
source "drivers/serial/Kconfig"
if !SUN4
source "drivers/sbus/char/Kconfig"
endif
source "drivers/block/Kconfig"
# Don't frighten a common SBus user
if PCI
source "drivers/ide/Kconfig"
endif
source "drivers/isdn/Kconfig"
source "drivers/scsi/Kconfig"
source "drivers/fc4/Kconfig"
source "drivers/md/Kconfig"
source "net/Kconfig"
# This one must be before the filesystem configs. -DaveM
menu "Unix98 PTY support"
config UNIX98_PTYS
bool "Unix98 PTY support"
---help---
A pseudo terminal (PTY) is a software device consisting of two
halves: a master and a slave. The slave device behaves identical to
a physical terminal; the master device is used by a process to
read data from and write data to the slave, thereby emulating a
terminal. Typical programs for the master side are telnet servers
and xterms.
Linux has traditionally used the BSD-like names /dev/ptyxx for
masters and /dev/ttyxx for slaves of pseudo terminals. This scheme
has a number of problems. The GNU C library glibc 2.1 and later,
however, supports the Unix98 naming standard: in order to acquire a
pseudo terminal, a process opens /dev/ptmx; the number of the pseudo
terminal is then made available to the process and the pseudo
terminal slave can be accessed as /dev/pts/<number>. What was
traditionally /dev/ttyp2 will then be /dev/pts/2, for example.
The entries in /dev/pts/ are created on the fly by a virtual
file system; therefore, if you say Y here you should say Y to
"/dev/pts file system for Unix98 PTYs" as well.
If you want to say Y here, you need to have the C library glibc 2.1
or later (equal to libc-6.1, check with "ls -l /lib/libc.so.*").
Read the instructions in <file:Documentation/Changes> pertaining to
pseudo terminals. It's safe to say N.
config UNIX98_PTY_COUNT
int "Maximum number of Unix98 PTYs in use (0-2048)"
depends on UNIX98_PTYS
default "256"
help
The maximum number of Unix98 PTYs that can be used at any one time.
The default is 256, and should be enough for desktop systems. Server
machines which support incoming telnet/rlogin/ssh connections and/or
serve several X terminals may want to increase this: every incoming
connection and every xterm uses up one PTY.
When not in use, each additional set of 256 PTYs occupy
approximately 8 KB of kernel memory on 32-bit architectures.
endmenu
source "drivers/input/Kconfig"
source "fs/Kconfig"
source "sound/Kconfig"
source "drivers/usb/Kconfig"
source "drivers/infiniband/Kconfig"
source "drivers/char/watchdog/Kconfig"
source "arch/sparc/Kconfig.debug"
source "security/Kconfig"
source "crypto/Kconfig"
source "lib/Kconfig"
