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1# $Id: config.in,v 1.158 2002/01/24 22:14:44 davem Exp $
2# For a description of the syntax of this configuration file,
3# see the Configure script.
4#
5
6mainmenu "Linux/UltraSPARC Kernel Configuration"
7
8config 64BIT
9 def_bool y
10
11config MMU
12 bool
13 default y
14
15config TIME_INTERPOLATION
16 bool
17 default y
18
19choice
20 prompt "Kernel page size"
21 default SPARC64_PAGE_SIZE_8KB
22
23config SPARC64_PAGE_SIZE_8KB
24 bool "8KB"
25 help
26 This lets you select the page size of the kernel.
27
28 8KB and 64KB work quite well, since Sparc ELF sections
29 provide for up to 64KB alignment.
30
31 Therefore, 512KB and 4MB are for expert hackers only.
32
33 If you don't know what to do, choose 8KB.
34
35config SPARC64_PAGE_SIZE_64KB
36 bool "64KB"
37
38config SPARC64_PAGE_SIZE_512KB
39 bool "512KB"
40
41config SPARC64_PAGE_SIZE_4MB
42 bool "4MB"
43
44endchoice
45
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46source kernel/Kconfig.hz
47
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48source "init/Kconfig"
49
50config SYSVIPC_COMPAT
51 bool
52 depends on COMPAT && SYSVIPC
53 default y
54
55menu "General machine setup"
56
57config BBC_I2C
58 tristate "UltraSPARC-III bootbus i2c controller driver"
59 depends on PCI
60 help
61 The BBC devices on the UltraSPARC III have two I2C controllers. The
62 first I2C controller connects mainly to configuration PROMs (NVRAM,
63 CPU configuration, DIMM types, etc.). The second I2C controller
64 connects to environmental control devices such as fans and
65 temperature sensors. The second controller also connects to the
66 smartcard reader, if present. Say Y to enable support for these.
67
68config VT
69 bool "Virtual terminal" if EMBEDDED
70 select INPUT
71 default y
72 ---help---
73 If you say Y here, you will get support for terminal devices with
74 display and keyboard devices. These are called "virtual" because you
75 can run several virtual terminals (also called virtual consoles) on
76 one physical terminal. This is rather useful, for example one
77 virtual terminal can collect system messages and warnings, another
78 one can be used for a text-mode user session, and a third could run
79 an X session, all in parallel. Switching between virtual terminals
80 is done with certain key combinations, usually Alt-<function key>.
81
82 The setterm command ("man setterm") can be used to change the
83 properties (such as colors or beeping) of a virtual terminal. The
84 man page console_codes(4) ("man console_codes") contains the special
85 character sequences that can be used to change those properties
86 directly. The fonts used on virtual terminals can be changed with
87 the setfont ("man setfont") command and the key bindings are defined
88 with the loadkeys ("man loadkeys") command.
89
90 You need at least one virtual terminal device in order to make use
91 of your keyboard and monitor. Therefore, only people configuring an
92 embedded system would want to say N here in order to save some
93 memory; the only way to log into such a system is then via a serial
94 or network connection.
95
96 If unsure, say Y, or else you won't be able to do much with your new
97 shiny Linux system :-)
98
99config VT_CONSOLE
100 bool "Support for console on virtual terminal" if EMBEDDED
101 depends on VT
102 default y
103 ---help---
104 The system console is the device which receives all kernel messages
105 and warnings and which allows logins in single user mode. If you
106 answer Y here, a virtual terminal (the device used to interact with
107 a physical terminal) can be used as system console. This is the most
108 common mode of operations, so you should say Y here unless you want
109 the kernel messages be output only to a serial port (in which case
110 you should say Y to "Console on serial port", below).
111
112 If you do say Y here, by default the currently visible virtual
113 terminal (/dev/tty0) will be used as system console. You can change
114 that with a kernel command line option such as "console=tty3" which
115 would use the third virtual terminal as system console. (Try "man
116 bootparam" or see the documentation of your boot loader (lilo or
117 loadlin) about how to pass options to the kernel at boot time.)
118
119 If unsure, say Y.
120
121config HW_CONSOLE
122 bool
e3b9ab1a 123 depends on VT
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124 default y
125
126config SMP
127 bool "Symmetric multi-processing support"
128 ---help---
129 This enables support for systems with more than one CPU. If you have
130 a system with only one CPU, say N. If you have a system with more than
131 one CPU, say Y.
132
133 If you say N here, the kernel will run on single and multiprocessor
134 machines, but will use only one CPU of a multiprocessor machine. If
135 you say Y here, the kernel will run on many, but not all,
136 singleprocessor machines. On a singleprocessor machine, the kernel
137 will run faster if you say N here.
138
139 People using multiprocessor machines who say Y here should also say
140 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
141 Management" code will be disabled if you say Y here.
142
143 See also the <file:Documentation/smp.txt>,
144 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
145 <http://www.tldp.org/docs.html#howto>.
146
147 If you don't know what to do here, say N.
148
149config PREEMPT
150 bool "Preemptible Kernel"
151 help
152 This option reduces the latency of the kernel when reacting to
153 real-time or interactive events by allowing a low priority process to
154 be preempted even if it is in kernel mode executing a system call.
155 This allows applications to run more reliably even when the system is
156 under load.
157
158 Say Y here if you are building a kernel for a desktop, embedded
159 or real-time system. Say N if you are unsure.
160
161config NR_CPUS
162 int "Maximum number of CPUs (2-64)"
163 range 2 64
164 depends on SMP
165 default "32"
166
167source "drivers/cpufreq/Kconfig"
168
169config US3_FREQ
170 tristate "UltraSPARC-III CPU Frequency driver"
171 depends on CPU_FREQ
172 select CPU_FREQ_TABLE
173 help
174 This adds the CPUFreq driver for UltraSPARC-III processors.
175
176 For details, take a look at <file:Documentation/cpu-freq>.
177
178 If in doubt, say N.
179
180config US2E_FREQ
181 tristate "UltraSPARC-IIe CPU Frequency driver"
182 depends on CPU_FREQ
183 select CPU_FREQ_TABLE
184 help
185 This adds the CPUFreq driver for UltraSPARC-IIe processors.
186
187 For details, take a look at <file:Documentation/cpu-freq>.
188
189 If in doubt, say N.
190
191# Identify this as a Sparc64 build
192config SPARC64
193 bool
194 default y
195 help
196 SPARC is a family of RISC microprocessors designed and marketed by
197 Sun Microsystems, incorporated. This port covers the newer 64-bit
198 UltraSPARC. The UltraLinux project maintains both the SPARC32 and
199 SPARC64 ports; its web page is available at
200 <http://www.ultralinux.org/>.
201
202# Global things across all Sun machines.
203config RWSEM_GENERIC_SPINLOCK
204 bool
205
206config RWSEM_XCHGADD_ALGORITHM
207 bool
208 default y
209
210config GENERIC_CALIBRATE_DELAY
211 bool
212 default y
213
214choice
215 prompt "SPARC64 Huge TLB Page Size"
216 depends on HUGETLB_PAGE
217 default HUGETLB_PAGE_SIZE_4MB
218
219config HUGETLB_PAGE_SIZE_4MB
220 bool "4MB"
221
222config HUGETLB_PAGE_SIZE_512K
223 depends on !SPARC64_PAGE_SIZE_4MB
224 bool "512K"
225
226config HUGETLB_PAGE_SIZE_64K
227 depends on !SPARC64_PAGE_SIZE_4MB && !SPARC64_PAGE_SIZE_512K
228 bool "64K"
229
230endchoice
231
232config GENERIC_ISA_DMA
233 bool
234 default y
235
236config ISA
237 bool
238 help
239 Find out whether you have ISA slots on your motherboard. ISA is the
240 name of a bus system, i.e. the way the CPU talks to the other stuff
241 inside your box. Other bus systems are PCI, EISA, MicroChannel
242 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
243 newer boards don't support it. If you have ISA, say Y, otherwise N.
244
245config ISAPNP
246 bool
247 help
248 Say Y here if you would like support for ISA Plug and Play devices.
249 Some information is in <file:Documentation/isapnp.txt>.
250
251 To compile this driver as a module, choose M here: the
252 module will be called isapnp.
253
254 If unsure, say Y.
255
256config EISA
257 bool
258 ---help---
259 The Extended Industry Standard Architecture (EISA) bus was
260 developed as an open alternative to the IBM MicroChannel bus.
261
262 The EISA bus provided some of the features of the IBM MicroChannel
263 bus while maintaining backward compatibility with cards made for
264 the older ISA bus. The EISA bus saw limited use between 1988 and
265 1995 when it was made obsolete by the PCI bus.
266
267 Say Y here if you are building a kernel for an EISA-based machine.
268
269 Otherwise, say N.
270
271config MCA
272 bool
273 help
274 MicroChannel Architecture is found in some IBM PS/2 machines and
275 laptops. It is a bus system similar to PCI or ISA. See
276 <file:Documentation/mca.txt> (and especially the web page given
277 there) before attempting to build an MCA bus kernel.
278
279config PCMCIA
280 tristate
281 ---help---
282 Say Y here if you want to attach PCMCIA- or PC-cards to your Linux
283 computer. These are credit-card size devices such as network cards,
284 modems or hard drives often used with laptops computers. There are
285 actually two varieties of these cards: the older 16 bit PCMCIA cards
286 and the newer 32 bit CardBus cards. If you want to use CardBus
287 cards, you need to say Y here and also to "CardBus support" below.
288
289 To use your PC-cards, you will need supporting software from David
290 Hinds' pcmcia-cs package (see the file <file:Documentation/Changes>
291 for location). Please also read the PCMCIA-HOWTO, available from
292 <http://www.tldp.org/docs.html#howto>.
293
294 To compile this driver as modules, choose M here: the
295 modules will be called pcmcia_core and ds.
296
297config SBUS
298 bool
299 default y
300
301config SBUSCHAR
302 bool
303 default y
304
305config SUN_AUXIO
306 bool
307 default y
308
309config SUN_IO
310 bool
311 default y
312
313config PCI
314 bool "PCI support"
315 help
316 Find out whether you have a PCI motherboard. PCI is the name of a
317 bus system, i.e. the way the CPU talks to the other stuff inside
318 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
319 VESA. If you have PCI, say Y, otherwise N.
320
321 The PCI-HOWTO, available from
322 <http://www.tldp.org/docs.html#howto>, contains valuable
323 information about which PCI hardware does work under Linux and which
324 doesn't.
325
326config PCI_DOMAINS
327 bool
328 default PCI
329
330config RTC
331 tristate
332 depends on PCI
333 default y
334 ---help---
335 If you say Y here and create a character special file /dev/rtc with
336 major number 10 and minor number 135 using mknod ("man mknod"), you
337 will get access to the real time clock (or hardware clock) built
338 into your computer.
339
340 Every PC has such a clock built in. It can be used to generate
341 signals from as low as 1Hz up to 8192Hz, and can also be used
342 as a 24 hour alarm. It reports status information via the file
343 /proc/driver/rtc and its behaviour is set by various ioctls on
344 /dev/rtc.
345
346 If you run Linux on a multiprocessor machine and said Y to
347 "Symmetric Multi Processing" above, you should say Y here to read
348 and set the RTC in an SMP compatible fashion.
349
350 If you think you have a use for such a device (such as periodic data
351 sampling), then say Y here, and read <file:Documentation/rtc.txt>
352 for details.
353
354 To compile this driver as a module, choose M here: the
355 module will be called rtc.
356
357source "drivers/pci/Kconfig"
358
359config SUN_OPENPROMFS
360 tristate "Openprom tree appears in /proc/openprom"
361 help
362 If you say Y, the OpenPROM device tree will be available as a
363 virtual file system, which you can mount to /proc/openprom by "mount
364 -t openpromfs none /proc/openprom".
365
366 To compile the /proc/openprom support as a module, choose M here: the
367 module will be called openpromfs. If unsure, choose M.
368
369config SPARC32_COMPAT
370 bool "Kernel support for Linux/Sparc 32bit binary compatibility"
371 help
372 This allows you to run 32-bit binaries on your Ultra.
373 Everybody wants this; say Y.
374
375config COMPAT
376 bool
377 depends on SPARC32_COMPAT
378 default y
379
380config UID16
381 bool
382 depends on SPARC32_COMPAT
383 default y
384
385config BINFMT_ELF32
386 tristate "Kernel support for 32-bit ELF binaries"
387 depends on SPARC32_COMPAT
388 help
389 This allows you to run 32-bit Linux/ELF binaries on your Ultra.
390 Everybody wants this; say Y.
391
392config BINFMT_AOUT32
393 bool "Kernel support for 32-bit (ie. SunOS) a.out binaries"
394 depends on SPARC32_COMPAT
395 help
396 This allows you to run 32-bit a.out format binaries on your Ultra.
397 If you want to run SunOS binaries (see SunOS binary emulation below)
398 or other a.out binaries, say Y. If unsure, say N.
399
400source "fs/Kconfig.binfmt"
401
402config SUNOS_EMUL
403 bool "SunOS binary emulation"
404 depends on BINFMT_AOUT32
405 help
406 This allows you to run most SunOS binaries. If you want to do this,
407 say Y here and place appropriate files in /usr/gnemul/sunos. See
408 <http://www.ultralinux.org/faq.html> for more information. If you
409 want to run SunOS binaries on an Ultra you must also say Y to
410 "Kernel support for 32-bit a.out binaries" above.
411
412config SOLARIS_EMUL
413 tristate "Solaris binary emulation (EXPERIMENTAL)"
414 depends on SPARC32_COMPAT && EXPERIMENTAL
415 help
416 This is experimental code which will enable you to run (many)
417 Solaris binaries on your SPARC Linux machine.
418
419 To compile this code as a module, choose M here: the
420 module will be called solaris.
421
422source "drivers/parport/Kconfig"
423
424config PRINTER
425 tristate "Parallel printer support"
426 depends on PARPORT
427 ---help---
428 If you intend to attach a printer to the parallel port of your Linux
429 box (as opposed to using a serial printer; if the connector at the
430 printer has 9 or 25 holes ["female"], then it's serial), say Y.
431 Also read the Printing-HOWTO, available from
432 <http://www.tldp.org/docs.html#howto>.
433
434 It is possible to share one parallel port among several devices
435 (e.g. printer and ZIP drive) and it is safe to compile the
436 corresponding drivers into the kernel.
437 To compile this driver as a module, choose M here and read
438 <file:Documentation/parport.txt>. The module will be called lp.
439
440 If you have several parallel ports, you can specify which ports to
441 use with the "lp" kernel command line option. (Try "man bootparam"
442 or see the documentation of your boot loader (lilo or loadlin) about
443 how to pass options to the kernel at boot time.) The syntax of the
444 "lp" command line option can be found in <file:drivers/char/lp.c>.
445
446 If you have more than 8 printers, you need to increase the LP_NO
447 macro in lp.c and the PARPORT_MAX macro in parport.h.
448
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449config PPDEV
450 tristate "Support for user-space parallel port device drivers"
451 depends on PARPORT
452 ---help---
453 Saying Y to this adds support for /dev/parport device nodes. This
454 is needed for programs that want portable access to the parallel
455 port, for instance deviceid (which displays Plug-and-Play device
456 IDs).
457
458 This is the parallel port equivalent of SCSI generic support (sg).
459 It is safe to say N to this -- it is not needed for normal printing
460 or parallel port CD-ROM/disk support.
461
462 To compile this driver as a module, choose M here: the
463 module will be called ppdev.
464
465 If unsure, say N.
466
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467config ENVCTRL
468 tristate "SUNW, envctrl support"
469 depends on PCI
470 help
471 Kernel support for temperature and fan monitoring on Sun SME
472 machines.
473
474 To compile this driver as a module, choose M here: the
475 module will be called envctrl.
476
477config DISPLAY7SEG
478 tristate "7-Segment Display support"
479 depends on PCI
480 ---help---
481 This is the driver for the 7-segment display and LED present on
482 Sun Microsystems CompactPCI models CP1400 and CP1500.
483
484 To compile this driver as a module, choose M here: the
485 module will be called display7seg.
486
487 If you do not have a CompactPCI model CP1400 or CP1500, or
488 another UltraSPARC-IIi-cEngine boardset with a 7-segment display,
489 you should say N to this option.
490
491config CMDLINE_BOOL
492 bool "Default bootloader kernel arguments"
493
494config CMDLINE
495 string "Initial kernel command string"
496 depends on CMDLINE_BOOL
497 default "console=ttyS0,9600 root=/dev/sda1"
498 help
499 Say Y here if you want to be able to pass default arguments to
500 the kernel. This will be overridden by the bootloader, if you
501 use one (such as SILO). This is most useful if you want to boot
502 a kernel from TFTP, and want default options to be available
503 with having them passed on the command line.
504
505 NOTE: This option WILL override the PROM bootargs setting!
506
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507source "mm/Kconfig"
508
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509endmenu
510
511source "drivers/base/Kconfig"
512
513source "drivers/video/Kconfig"
514
515source "drivers/serial/Kconfig"
516
517source "drivers/sbus/char/Kconfig"
518
519source "drivers/mtd/Kconfig"
520
521source "drivers/block/Kconfig"
522
523source "drivers/ide/Kconfig"
524
525source "drivers/scsi/Kconfig"
526
527source "drivers/fc4/Kconfig"
528
529source "drivers/md/Kconfig"
530
531if PCI
532source "drivers/message/fusion/Kconfig"
533endif
534
535source "drivers/ieee1394/Kconfig"
536
537source "net/Kconfig"
538
539source "drivers/isdn/Kconfig"
540
541source "drivers/telephony/Kconfig"
542
543# This one must be before the filesystem configs. -DaveM
544
545menu "Unix98 PTY support"
546
547config UNIX98_PTYS
548 bool "Unix98 PTY support"
549 ---help---
550 A pseudo terminal (PTY) is a software device consisting of two
551 halves: a master and a slave. The slave device behaves identical to
552 a physical terminal; the master device is used by a process to
553 read data from and write data to the slave, thereby emulating a
554 terminal. Typical programs for the master side are telnet servers
555 and xterms.
556
557 Linux has traditionally used the BSD-like names /dev/ptyxx for
558 masters and /dev/ttyxx for slaves of pseudo terminals. This scheme
559 has a number of problems. The GNU C library glibc 2.1 and later,
560 however, supports the Unix98 naming standard: in order to acquire a
561 pseudo terminal, a process opens /dev/ptmx; the number of the pseudo
562 terminal is then made available to the process and the pseudo
563 terminal slave can be accessed as /dev/pts/<number>. What was
564 traditionally /dev/ttyp2 will then be /dev/pts/2, for example.
565
566 The entries in /dev/pts/ are created on the fly by a virtual
567 file system; therefore, if you say Y here you should say Y to
568 "/dev/pts file system for Unix98 PTYs" as well.
569
570 If you want to say Y here, you need to have the C library glibc 2.1
571 or later (equal to libc-6.1, check with "ls -l /lib/libc.so.*").
572 Read the instructions in <file:Documentation/Changes> pertaining to
573 pseudo terminals. It's safe to say N.
574
575config UNIX98_PTY_COUNT
576 int "Maximum number of Unix98 PTYs in use (0-2048)"
577 depends on UNIX98_PTYS
578 default "256"
579 help
580 The maximum number of Unix98 PTYs that can be used at any one time.
581 The default is 256, and should be enough for desktop systems. Server
582 machines which support incoming telnet/rlogin/ssh connections and/or
583 serve several X terminals may want to increase this: every incoming
584 connection and every xterm uses up one PTY.
585
586 When not in use, each additional set of 256 PTYs occupy
587 approximately 8 KB of kernel memory on 32-bit architectures.
588
589endmenu
590
591menu "XFree86 DRI support"
592
593config DRM
594 bool "Direct Rendering Manager (XFree86 DRI support)"
595 help
596 Kernel-level support for the Direct Rendering Infrastructure (DRI)
597 introduced in XFree86 4.0. If you say Y here, you need to select
598 the module that's right for your graphics card from the list below.
599 These modules provide support for synchronization, security, and
600 DMA transfers. Please see <http://dri.sourceforge.net/> for more
601 details. You should also select and configure AGP
602 (/dev/agpgart) support.
603
604config DRM_FFB
605 tristate "Creator/Creator3D"
606 depends on DRM && BROKEN
607 help
608 Choose this option if you have one of Sun's Creator3D-based graphics
609 and frame buffer cards. Product page at
610 <http://www.sun.com/desktop/products/Graphics/creator3d.html>.
611
612config DRM_TDFX
613 tristate "3dfx Banshee/Voodoo3+"
614 depends on DRM
615 help
616 Choose this option if you have a 3dfx Banshee or Voodoo3 (or later),
617 graphics card. If M is selected, the module will be called tdfx.
618
619config DRM_R128
620 tristate "ATI Rage 128"
621 depends on DRM
622 help
623 Choose this option if you have an ATI Rage 128 graphics card. If M
624 is selected, the module will be called r128. AGP support for
625 this card is strongly suggested (unless you have a PCI version).
626
627endmenu
628
629source "drivers/input/Kconfig"
630
631source "drivers/i2c/Kconfig"
632
633source "fs/Kconfig"
634
635source "drivers/media/Kconfig"
636
637source "sound/Kconfig"
638
639source "drivers/usb/Kconfig"
640
641source "drivers/infiniband/Kconfig"
642
643source "drivers/char/watchdog/Kconfig"
644
645source "arch/sparc64/oprofile/Kconfig"
646
647source "arch/sparc64/Kconfig.debug"
648
649source "security/Kconfig"
650
651source "crypto/Kconfig"
652
653source "lib/Kconfig"