[deliverable/linux.git] / arch / sparc / Kconfig

# $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 HIGHMEM
	bool
	default y

config ZONE_DMA
	bool
	default y

config GENERIC_ISA_DMA
	bool
	default y

config ARCH_NO_VIRT_TO_BUS
	def_bool y

config OF
	def_bool y

config ARCH_SUPPORTS_AOUT
	def_bool y

config HZ
	int
	default 100

source "init/Kconfig"

menu "General machine setup"

config SMP
	bool "Symmetric multi-processing support (does not work on sun4/sun4c)"
	---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 <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"

config SPARC
	bool
	default y
	select HAVE_IDE
	select HAVE_OPROFILE

# 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_FIND_NEXT_BIT
	bool
	default y

config GENERIC_HWEIGHT
	bool
	default y

config GENERIC_CALIBRATE_DELAY
	bool
	default y

config ARCH_MAY_HAVE_PC_FDC
	bool
	default y

config ARCH_HAS_ILOG2_U32
	bool
	default n

config ARCH_HAS_ILOG2_U64
	bool
	default n

config EMULATED_CMPXCHG
	bool
	default y
	help
	  Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
	  is emulated, and therefore it is not completely atomic.

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.

config PCI_SYSCALL
	def_bool PCI

source "drivers/pci/Kconfig"

endif

config NO_DMA
	def_bool !PCI

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.

config SPARC_LED
	tristate "Sun4m LED driver"
	help
	  This driver toggles the front-panel LED on sun4m systems
	  in a user-specifiable manner.  Its state can be probed
	  by reading /proc/led and its blinking mode can be changed
	  via writes to /proc/led

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 "mm/Kconfig"

endmenu

source "net/Kconfig"

source "drivers/Kconfig"

if !SUN4
source "drivers/sbus/char/Kconfig"
endif

# 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 "fs/Kconfig"

source "arch/sparc/Kconfig.debug"

source "security/Kconfig"

source "crypto/Kconfig"

source "lib/Kconfig"
Commit	Line	Data
1da177e4 LT	1	# $Id: config.in,v 1.113 2002/01/24 22:14:44 davem Exp $
	2	# For a description of the syntax of this configuration file,
	3	# see Documentation/kbuild/kconfig-language.txt.
	4	#
	5
	6	mainmenu "Linux/SPARC Kernel Configuration"
	7
	8	config MMU
	9	bool
	10	default y
	11
1da177e4 LT	12	config HIGHMEM
	13	bool
	14	default y
	15
5ac6da66 CL	16	config ZONE_DMA
	17	bool
	18	default y
	19
1da177e4 LT	20	config GENERIC_ISA_DMA
	21	bool
	22	default y
	23
0785b9dc SR	24	config ARCH_NO_VIRT_TO_BUS
	25	def_bool y
	26
97e873e5 SR	27	config OF
	28	def_bool y
	29
b0b933c0 DH	30	config ARCH_SUPPORTS_AOUT
	31	def_bool y
	32
bdc80787 PA	33	config HZ
	34	int
	35	default 100
	36
1da177e4 LT	37	source "init/Kconfig"
	38
	39	menu "General machine setup"
	40
1da177e4 LT	41	config SMP
1da177e4 LT	42	bool "Symmetric multi-processing support (does not work on sun4/sun4c)"
1da177e4 LT	43	---help---
	44	This enables support for systems with more than one CPU. If you have
	45	a system with only one CPU, say N. If you have a system with more
	46	than one CPU, say Y.
	47
	48	If you say N here, the kernel will run on single and multiprocessor
	49	machines, but will use only one CPU of a multiprocessor machine. If
	50	you say Y here, the kernel will run on many, but not all,
	51	singleprocessor machines. On a singleprocessor machine, the kernel
	52	will run faster if you say N here.
	53
	54	People using multiprocessor machines who say Y here should also say
	55	Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
	56	Management" code will be disabled if you say Y here.
	57
03502faa AB	58	See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
03502faa AB	59	available at <http://www.tldp.org/docs.html#howto>.
1da177e4 LT	60
	61	If you don't know what to do here, say N.
	62
	63	config NR_CPUS
	64	int "Maximum number of CPUs (2-32)"
	65	range 2 32
	66	depends on SMP
	67	default "32"
	68
0b57ee9e AB	69	config SPARC
	70	bool
	71	default y
ec7748b5	72	select HAVE_IDE
42d4b839	73	select HAVE_OPROFILE
0b57ee9e	74
1da177e4 LT	75	# Identify this as a Sparc32 build
	76	config SPARC32
	77	bool
	78	default y
	79	help
	80	SPARC is a family of RISC microprocessors designed and marketed by
	81	Sun Microsystems, incorporated. They are very widely found in Sun
	82	workstations and clones. This port covers the original 32-bit SPARC;
	83	it is old and stable and usually considered one of the "big three"
	84	along with the Intel and Alpha ports. The UltraLinux project
	85	maintains both the SPARC32 and SPARC64 ports; its web page is
	86	available at <http://www.ultralinux.org/>.
	87
	88	# Global things across all Sun machines.
	89	config ISA
	90	bool
	91	help
	92	ISA is found on Espresso only and is not supported currently.
	93	Say N
	94
	95	config EISA
	96	bool
	97	help
	98	EISA is not supported.
	99	Say N
	100
	101	config MCA
	102	bool
	103	help
	104	MCA is not supported.
	105	Say N
	106
	107	config PCMCIA
	108	tristate
	109	---help---
	110	Say Y here if you want to attach PCMCIA- or PC-cards to your Linux
	111	computer. These are credit-card size devices such as network cards,
	112	modems or hard drives often used with laptops computers. There are
	113	actually two varieties of these cards: the older 16 bit PCMCIA cards
	114	and the newer 32 bit CardBus cards. If you want to use CardBus
	115	cards, you need to say Y here and also to "CardBus support" below.
	116
	117	To use your PC-cards, you will need supporting software from David
	118	Hinds' pcmcia-cs package (see the file <file:Documentation/Changes>
	119	for location). Please also read the PCMCIA-HOWTO, available from
	120	<http://www.tldp.org/docs.html#howto>.
	121
	122	To compile this driver as modules, choose M here: the
	123	modules will be called pcmcia_core and ds.
	124
	125	config SBUS
	126	bool
	127	default y
	128
	129	config SBUSCHAR
	130	bool
	131	default y
	132
	133	config SERIAL_CONSOLE
	134	bool
	135	default y
	136	---help---
	137	If you say Y here, it will be possible to use a serial port as the
	138	system console (the system console is the device which receives all
139	kernel messages and warnings and which allows logins in single user
140	mode). This could be useful if some terminal or printer is connected
141	to that serial port.
142
143	Even if you say Y here, the currently visible virtual console
144	(/dev/tty0) will still be used as the system console by default, but
145	you can alter that using a kernel command line option such as
146	"console=ttyS1". (Try "man bootparam" or see the documentation of
147	your boot loader (silo) about how to pass options to the kernel at
148	boot time.)
149
150	If you don't have a graphics card installed and you say Y here, the
151	kernel will automatically use the first serial line, /dev/ttyS0, as
152	system console.
153
154	If unsure, say N.
155
156	config SUN_AUXIO
157	bool
158	default y
159
160	config SUN_IO
161	bool
162	default y
163
164	config RWSEM_GENERIC_SPINLOCK
165	bool
166	default y
167
168	config RWSEM_XCHGADD_ALGORITHM
169	bool
170
d59288b7 AM	171	config GENERIC_FIND_NEXT_BIT
	172	bool
	173	default y
	174
	175	config GENERIC_HWEIGHT
	176	bool
	177	default y
	178
1da177e4 LT	179	config GENERIC_CALIBRATE_DELAY
	180	bool
	181	default y
	182
a08b6b79 Z	183	config ARCH_MAY_HAVE_PC_FDC
	184	bool
	185	default y
	186
f0d1b0b3 DH	187	config ARCH_HAS_ILOG2_U32
	188	bool
	189	default n
	190
	191	config ARCH_HAS_ILOG2_U64
	192	bool
	193	default n
	194
5f81941c MH	195	config EMULATED_CMPXCHG
	196	bool
	197	default y
	198	help
	199	Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
	200	is emulated, and therefore it is not completely atomic.
	201
1da177e4 LT	202	config SUN_PM
	203	bool
	204	default y
	205	help
	206	Enable power management and CPU standby features on supported
	207	SPARC platforms.
	208
	209	config SUN4
	210	bool "Support for SUN4 machines (disables SUN4[CDM] support)"
	211	depends on !SMP
	212	default n
	213	help
	214	Say Y here if, and only if, your machine is a sun4. Note that
	215	a kernel compiled with this option will run only on sun4.
	216	(And the current version will probably work only on sun4/330.)
	217
	218	if !SUN4
	219
	220	config PCI
	221	bool "Support for PCI and PS/2 keyboard/mouse"
	222	help
	223	CONFIG_PCI is needed for all JavaStation's (including MrCoffee),
	224	CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC.
	225	All of these platforms are extremely obscure, so say N if unsure.
	226
36e23590 MW	227	config PCI_SYSCALL
	228	def_bool PCI
	229
1da177e4 LT	230	source "drivers/pci/Kconfig"
	231
	232	endif
	233
7155c9f5 AV	234	config NO_DMA
	235	def_bool !PCI
	236
1da177e4 LT	237	config SUN_OPENPROMFS
	238	tristate "Openprom tree appears in /proc/openprom"
	239	help
	240	If you say Y, the OpenPROM device tree will be available as a
	241	virtual file system, which you can mount to /proc/openprom by "mount
	242	-t openpromfs none /proc/openprom".
	243
	244	To compile the /proc/openprom support as a module, choose M here: the
	245	module will be called openpromfs.
	246
	247	Only choose N if you know in advance that you will not need to modify
	248	OpenPROM settings on the running system.
	249
ee1858d3 LK	250	config SPARC_LED
	251	tristate "Sun4m LED driver"
	252	help
	253	This driver toggles the front-panel LED on sun4m systems
3cb2fccc ML	254	in a user-specifiable manner. Its state can be probed
3cb2fccc ML	255	by reading /proc/led and its blinking mode can be changed
ee1858d3 LK	256	via writes to /proc/led
ee1858d3 LK	257
1da177e4 LT	258	source "fs/Kconfig.binfmt"
	259
	260	config SUNOS_EMUL
	261	bool "SunOS binary emulation"
	262	help
	263	This allows you to run most SunOS binaries. If you want to do this,
	264	say Y here and place appropriate files in /usr/gnemul/sunos. See
	265	<http://www.ultralinux.org/faq.html> for more information. If you
	266	want to run SunOS binaries on an Ultra you must also say Y to
	267	"Kernel support for 32-bit a.out binaries" above.
	268
30aaa808 WLII	269	source "mm/Kconfig"
	270
	271	endmenu
	272
d5950b43 SR	273	source "net/Kconfig"
d5950b43 SR	274
30aaa808	275	source "drivers/Kconfig"
1da177e4	276
1da177e4 LT	277	if !SUN4
	278	source "drivers/sbus/char/Kconfig"
	279	endif
	280
1da177e4 LT	281	# This one must be before the filesystem configs. -DaveM
	282
	283	menu "Unix98 PTY support"
	284
	285	config UNIX98_PTYS
	286	bool "Unix98 PTY support"
	287	---help---
	288	A pseudo terminal (PTY) is a software device consisting of two
	289	halves: a master and a slave. The slave device behaves identical to
	290	a physical terminal; the master device is used by a process to
	291	read data from and write data to the slave, thereby emulating a
	292	terminal. Typical programs for the master side are telnet servers
	293	and xterms.
	294
	295	Linux has traditionally used the BSD-like names /dev/ptyxx for
	296	masters and /dev/ttyxx for slaves of pseudo terminals. This scheme
	297	has a number of problems. The GNU C library glibc 2.1 and later,
	298	however, supports the Unix98 naming standard: in order to acquire a
	299	pseudo terminal, a process opens /dev/ptmx; the number of the pseudo
	300	terminal is then made available to the process and the pseudo
	301	terminal slave can be accessed as /dev/pts/<number>. What was
	302	traditionally /dev/ttyp2 will then be /dev/pts/2, for example.
	303
	304	The entries in /dev/pts/ are created on the fly by a virtual
	305	file system; therefore, if you say Y here you should say Y to
	306	"/dev/pts file system for Unix98 PTYs" as well.
	307
	308	If you want to say Y here, you need to have the C library glibc 2.1
	309	or later (equal to libc-6.1, check with "ls -l /lib/libc.so.*").
	310	Read the instructions in <file:Documentation/Changes> pertaining to
	311	pseudo terminals. It's safe to say N.
	312
	313	config UNIX98_PTY_COUNT
	314	int "Maximum number of Unix98 PTYs in use (0-2048)"
	315	depends on UNIX98_PTYS
	316	default "256"
	317	help
	318	The maximum number of Unix98 PTYs that can be used at any one time.
	319	The default is 256, and should be enough for desktop systems. Server
	320	machines which support incoming telnet/rlogin/ssh connections and/or
	321	serve several X terminals may want to increase this: every incoming
	322	connection and every xterm uses up one PTY.
	323
	324	When not in use, each additional set of 256 PTYs occupy
	325	approximately 8 KB of kernel memory on 32-bit architectures.
	326
	327	endmenu
	328
1da177e4 LT	329	source "fs/Kconfig"
1da177e4 LT	330
1da177e4 LT	331	source "arch/sparc/Kconfig.debug"
	332
	333	source "security/Kconfig"
	334
	335	source "crypto/Kconfig"
	336
	337	source "lib/Kconfig"