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Linus Torvalds1da177e2005-04-16 15:20:36 -07001config ALPHA
2 bool
3 default y
David Woodhousee17c6d52008-06-17 12:19:34 +01004 select HAVE_AOUT
Sam Ravnborgec7748b2008-02-09 10:46:40 +01005 select HAVE_IDE
Mathieu Desnoyers42d4b832008-02-02 15:10:34 -05006 select HAVE_OPROFILE
Ivan Kokshayskye5d9a902009-01-29 14:25:18 -08007 select HAVE_SYSCALL_WRAPPERS
Peter Zijlstrae360adb2010-10-14 14:01:34 +08008 select HAVE_IRQ_WORK
Ralf Baechle8761f1a2011-06-01 19:05:09 +01009 select HAVE_PCSPKR_PLATFORM
Michael Creea582e6f2009-12-08 14:27:01 -050010 select HAVE_PERF_EVENTS
FUJITA Tomonoric186cac2010-03-10 15:23:37 -080011 select HAVE_DMA_ATTRS
Thomas Gleixnere27ec642011-01-19 20:27:11 +010012 select HAVE_GENERIC_HARDIRQS
13 select GENERIC_IRQ_PROBE
14 select AUTO_IRQ_AFFINITY if SMP
Thomas Gleixnera6e120e2011-03-25 22:20:51 +010015 select GENERIC_IRQ_SHOW
Mark Brown81ee42b2011-05-24 17:12:57 -070016 select ARCH_WANT_OPTIONAL_GPIOLIB
Huang Yingdf013ff2011-07-13 13:14:22 +080017 select ARCH_HAVE_NMI_SAFE_CMPXCHG
Linus Torvalds1da177e2005-04-16 15:20:36 -070018 help
19 The Alpha is a 64-bit general-purpose processor designed and
20 marketed by the Digital Equipment Corporation of blessed memory,
21 now Hewlett-Packard. The Alpha Linux project has a home page at
22 <http://www.alphalinux.org/>.
23
24config 64BIT
25 def_bool y
26
27config MMU
28 bool
29 default y
30
Linus Torvalds1da177e2005-04-16 15:20:36 -070031config RWSEM_GENERIC_SPINLOCK
32 bool
33
34config RWSEM_XCHGADD_ALGORITHM
35 bool
36 default y
37
David Howellsf0d1b0b2006-12-08 02:37:49 -080038config ARCH_HAS_ILOG2_U32
39 bool
40 default n
41
42config ARCH_HAS_ILOG2_U64
43 bool
44 default n
45
Linus Torvalds1da177e2005-04-16 15:20:36 -070046config GENERIC_CALIBRATE_DELAY
47 bool
48 default y
49
John Stultz1e871be2010-03-03 19:57:16 -080050config GENERIC_CMOS_UPDATE
51 def_bool y
52
Mark Brown81ee42b2011-05-24 17:12:57 -070053config GENERIC_GPIO
Ben Hutchings8694a182011-09-14 16:21:42 -070054 bool
Mark Brown81ee42b2011-05-24 17:12:57 -070055
Christoph Lameter5ac6da62007-02-10 01:43:14 -080056config ZONE_DMA
57 bool
58 default y
59
FUJITA Tomonori947272d2010-10-26 14:22:15 -070060config ARCH_DMA_ADDR_T_64BIT
61 def_bool y
62
FUJITA Tomonori08d925b2010-03-10 15:23:23 -080063config NEED_DMA_MAP_STATE
64 def_bool y
65
FUJITA Tomonori48c7cf42010-05-26 14:44:34 -070066config NEED_SG_DMA_LENGTH
67 def_bool y
68
Linus Torvalds1da177e2005-04-16 15:20:36 -070069config GENERIC_ISA_DMA
70 bool
71 default y
72
Linus Torvalds1da177e2005-04-16 15:20:36 -070073source "init/Kconfig"
Matt Helsleydc52ddc2008-10-18 20:27:21 -070074source "kernel/Kconfig.freezer"
Linus Torvalds1da177e2005-04-16 15:20:36 -070075
76
77menu "System setup"
78
79choice
80 prompt "Alpha system type"
81 default ALPHA_GENERIC
82 ---help---
83 This is the system type of your hardware. A "generic" kernel will
84 run on any supported Alpha system. However, if you configure a
85 kernel for your specific system, it will be faster and smaller.
86
87 To find out what type of Alpha system you have, you may want to
88 check out the Linux/Alpha FAQ, accessible on the WWW from
89 <http://www.alphalinux.org/>. In summary:
90
Jay Estabrookd7083172007-06-01 00:47:05 -070091 Alcor/Alpha-XLT AS 600, AS 500, XL-300, XL-366
Linus Torvalds1da177e2005-04-16 15:20:36 -070092 Alpha-XL XL-233, XL-266
93 AlphaBook1 Alpha laptop
94 Avanti AS 200, AS 205, AS 250, AS 255, AS 300, AS 400
95 Cabriolet AlphaPC64, AlphaPCI64
Jay Estabrookd7083172007-06-01 00:47:05 -070096 DP264 DP264 / DS20 / ES40 / DS10 / DS10L
Linus Torvalds1da177e2005-04-16 15:20:36 -070097 EB164 EB164 21164 evaluation board
98 EB64+ EB64+ 21064 evaluation board
99 EB66 EB66 21066 evaluation board
100 EB66+ EB66+ 21066 evaluation board
Jay Estabrookd7083172007-06-01 00:47:05 -0700101 Jensen DECpc 150, DEC 2000 models 300, 500
Linus Torvalds1da177e2005-04-16 15:20:36 -0700102 LX164 AlphaPC164-LX
103 Lynx AS 2100A
Jay Estabrookd7083172007-06-01 00:47:05 -0700104 Miata Personal Workstation 433/500/600 a/au
Linus Torvalds1da177e2005-04-16 15:20:36 -0700105 Marvel AlphaServer ES47 / ES80 / GS1280
106 Mikasa AS 1000
107 Noname AXPpci33, UDB (Multia)
108 Noritake AS 1000A, AS 600A, AS 800
109 PC164 AlphaPC164
110 Rawhide AS 1200, AS 4000, AS 4100
111 Ruffian RPX164-2, AlphaPC164-UX, AlphaPC164-BX
112 SX164 AlphaPC164-SX
113 Sable AS 2000, AS 2100
Jay Estabrookd7083172007-06-01 00:47:05 -0700114 Shark DS 20L
115 Takara Takara (OEM)
116 Titan AlphaServer ES45 / DS25 / DS15
Linus Torvalds1da177e2005-04-16 15:20:36 -0700117 Wildfire AlphaServer GS 40/80/160/320
118
119 If you don't know what to do, choose "generic".
120
121config ALPHA_GENERIC
122 bool "Generic"
123 help
124 A generic kernel will run on all supported Alpha hardware.
125
126config ALPHA_ALCOR
127 bool "Alcor/Alpha-XLT"
128 help
129 For systems using the Digital ALCOR chipset: 5 chips (4, 64-bit data
130 slices (Data Switch, DSW) - 208-pin PQFP and 1 control (Control, I/O
131 Address, CIA) - a 383 pin plastic PGA). It provides a DRAM
132 controller (256-bit memory bus) and a PCI interface. It also does
133 all the work required to support an external Bcache and to maintain
134 memory coherence when a PCI device DMAs into (or out of) memory.
135
136config ALPHA_XL
137 bool "Alpha-XL"
138 help
139 XL-233 and XL-266-based Alpha systems.
140
141config ALPHA_BOOK1
142 bool "AlphaBook1"
143 help
144 Dec AlphaBook1/Burns Alpha-based laptops.
145
146config ALPHA_AVANTI_CH
147 bool "Avanti"
148
149config ALPHA_CABRIOLET
150 bool "Cabriolet"
151 help
152 Cabriolet AlphaPC64, AlphaPCI64 systems. Derived from EB64+ but now
153 baby-AT with Flash boot ROM, no on-board SCSI or Ethernet. 3 ISA
154 slots, 4 PCI slots (one pair are on a shared slot), uses plug-in
155 Bcache SIMMs. Requires power supply with 3.3V output.
156
157config ALPHA_DP264
158 bool "DP264"
159 help
160 Various 21264 systems with the tsunami core logic chipset.
161 API Networks: 264DP, UP2000(+), CS20;
162 Compaq: DS10(E,L), XP900, XP1000, DS20(E), ES40.
163
164config ALPHA_EB164
165 bool "EB164"
166 help
167 EB164 21164 evaluation board from DEC. Uses 21164 and ALCOR. Has
168 ISA and PCI expansion (3 ISA slots, 2 64-bit PCI slots (one is
169 shared with an ISA slot) and 2 32-bit PCI slots. Uses plus-in
170 Bcache SIMMs. I/O sub-system provides SuperI/O (2S, 1P, FD), KBD,
171 MOUSE (PS2 style), RTC/NVRAM. Boot ROM is Flash. PC-AT-sized
172 motherboard. Requires power supply with 3.3V output.
173
174config ALPHA_EB64P_CH
175 bool "EB64+"
176
177config ALPHA_EB66
178 bool "EB66"
179 help
180 A Digital DS group board. Uses 21066 or 21066A. I/O sub-system is
181 identical to EB64+. Baby PC-AT size. Runs from standard PC power
182 supply. The EB66 schematic was published as a marketing poster
183 advertising the 21066 as "the first microprocessor in the world with
184 embedded PCI".
185
186config ALPHA_EB66P
187 bool "EB66+"
188 help
189 Later variant of the EB66 board.
190
191config ALPHA_EIGER
192 bool "Eiger"
193 help
194 Apparently an obscure OEM single-board computer based on the
195 Typhoon/Tsunami chipset family. Information on it is scanty.
196
197config ALPHA_JENSEN
198 bool "Jensen"
199 help
200 DEC PC 150 AXP (aka Jensen): This is a very old Digital system - one
201 of the first-generation Alpha systems. A number of these systems
202 seem to be available on the second- hand market. The Jensen is a
203 floor-standing tower system which originally used a 150MHz 21064 It
204 used programmable logic to interface a 486 EISA I/O bridge to the
205 CPU.
206
207config ALPHA_LX164
208 bool "LX164"
209 help
210 A technical overview of this board is available at
211 <http://www.unix-ag.org/Linux-Alpha/Architectures/LX164.html>.
212
213config ALPHA_LYNX
214 bool "Lynx"
215 help
216 AlphaServer 2100A-based systems.
217
218config ALPHA_MARVEL
219 bool "Marvel"
220 help
221 AlphaServer ES47 / ES80 / GS1280 based on EV7.
222
223config ALPHA_MIATA
224 bool "Miata"
225 help
226 The Digital PersonalWorkStation (PWS 433a, 433au, 500a, 500au, 600a,
Adrian Bunkffc32d62008-10-15 22:01:19 -0700227 or 600au).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700228
229config ALPHA_MIKASA
230 bool "Mikasa"
231 help
232 AlphaServer 1000-based Alpha systems.
233
234config ALPHA_NAUTILUS
235 bool "Nautilus"
236 help
237 Alpha systems based on the AMD 751 & ALI 1543C chipsets.
238
239config ALPHA_NONAME_CH
240 bool "Noname"
241
242config ALPHA_NORITAKE
243 bool "Noritake"
244 help
245 AlphaServer 1000A, AlphaServer 600A, and AlphaServer 800-based
246 systems.
247
248config ALPHA_PC164
249 bool "PC164"
250
251config ALPHA_P2K
252 bool "Platform2000"
253
254config ALPHA_RAWHIDE
255 bool "Rawhide"
256 help
257 AlphaServer 1200, AlphaServer 4000 and AlphaServer 4100 machines.
258 See HOWTO at
259 <http://www.alphalinux.org/docs/rawhide/4100_install.shtml>.
260
261config ALPHA_RUFFIAN
262 bool "Ruffian"
263 help
264 Samsung APC164UX. There is a page on known problems and workarounds
265 at <http://www.alphalinux.org/faq/FAQ-11.html>.
266
267config ALPHA_RX164
268 bool "RX164"
269
270config ALPHA_SX164
271 bool "SX164"
272
273config ALPHA_SABLE
274 bool "Sable"
275 help
276 Digital AlphaServer 2000 and 2100-based systems.
277
278config ALPHA_SHARK
279 bool "Shark"
280
281config ALPHA_TAKARA
282 bool "Takara"
283 help
284 Alpha 11164-based OEM single-board computer.
285
286config ALPHA_TITAN
287 bool "Titan"
288 help
289 AlphaServer ES45/DS25 SMP based on EV68 and Titan chipset.
290
291config ALPHA_WILDFIRE
292 bool "Wildfire"
293 help
294 AlphaServer GS 40/80/160/320 SMP based on the EV67 core.
295
296endchoice
297
298# clear all implied options (don't want default values for those):
299# Most of these machines have ISA slots; not exactly sure which don't,
300# and this doesn't activate hordes of code, so do it always.
301config ISA
302 bool
303 default y
304 help
305 Find out whether you have ISA slots on your motherboard. ISA is the
306 name of a bus system, i.e. the way the CPU talks to the other stuff
307 inside your box. Other bus systems are PCI, EISA, MicroChannel
308 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
309 newer boards don't support it. If you have ISA, say Y, otherwise N.
310
Al Viro5cae8412005-05-04 05:39:22 +0100311config ISA_DMA_API
312 bool
313 default y
314
Linus Torvalds1da177e2005-04-16 15:20:36 -0700315config PCI
316 bool
317 depends on !ALPHA_JENSEN
Michael S. Tsirkinf2971c42011-11-24 20:48:56 +0200318 select GENERIC_PCI_IOMAP
Linus Torvalds1da177e2005-04-16 15:20:36 -0700319 default y
320 help
321 Find out whether you have a PCI motherboard. PCI is the name of a
322 bus system, i.e. the way the CPU talks to the other stuff inside
323 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
324 VESA. If you have PCI, say Y, otherwise N.
325
Linus Torvalds1da177e2005-04-16 15:20:36 -0700326config PCI_DOMAINS
327 bool
328 default y
329
Matthew Wilcox36e23592007-07-10 10:54:40 -0600330config PCI_SYSCALL
331 def_bool PCI
332
FUJITA Tomonorifd288412008-03-13 12:32:40 -0700333config IOMMU_HELPER
334 def_bool PCI
335
Linus Torvalds1da177e2005-04-16 15:20:36 -0700336config ALPHA_NONAME
337 bool
338 depends on ALPHA_BOOK1 || ALPHA_NONAME_CH
339 default y
340 help
341 The AXPpci33 (aka NoName), is based on the EB66 (includes the Multia
342 UDB). This design was produced by Digital's Technical OEM (TOEM)
343 group. It uses the 21066 processor running at 166MHz or 233MHz. It
344 is a baby-AT size, and runs from a standard PC power supply. It has
345 5 ISA slots and 3 PCI slots (one pair are a shared slot). There are
346 2 versions, with either PS/2 or large DIN connectors for the
347 keyboard.
348
349config ALPHA_EV4
350 bool
351 depends on ALPHA_JENSEN || (ALPHA_SABLE && !ALPHA_GAMMA) || ALPHA_LYNX || ALPHA_NORITAKE && !ALPHA_PRIMO || ALPHA_MIKASA && !ALPHA_PRIMO || ALPHA_CABRIOLET || ALPHA_AVANTI_CH || ALPHA_EB64P_CH || ALPHA_XL || ALPHA_NONAME || ALPHA_EB66 || ALPHA_EB66P || ALPHA_P2K
352 default y if !ALPHA_LYNX
353
354config ALPHA_LCA
355 bool
356 depends on ALPHA_NONAME || ALPHA_EB66 || ALPHA_EB66P || ALPHA_P2K
357 default y
358
359config ALPHA_APECS
360 bool
361 depends on !ALPHA_PRIMO && (ALPHA_NORITAKE || ALPHA_MIKASA) || ALPHA_CABRIOLET || ALPHA_AVANTI_CH || ALPHA_EB64P_CH || ALPHA_XL
362 default y
363
364config ALPHA_EB64P
365 bool
366 depends on ALPHA_CABRIOLET || ALPHA_EB64P_CH
367 default y
368 help
369 Uses 21064 or 21064A and APECs. Has ISA and PCI expansion (3 ISA,
370 2 PCI, one pair are on a shared slot). Supports 36-bit DRAM SIMs.
371 ISA bus generated by Intel SaturnI/O PCI-ISA bridge. On-board SCSI
372 (NCR 810 on PCI) Ethernet (Digital 21040), KBD, MOUSE (PS2 style),
373 SuperI/O (2S, 1P, FD), RTC/NVRAM. Boot ROM is EPROM. PC-AT size.
374 Runs from standard PC power supply.
375
376config ALPHA_EV5
377 bool "EV5 CPU(s) (model 5/xxx)?" if ALPHA_LYNX
378 default y if ALPHA_RX164 || ALPHA_RAWHIDE || ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN || ALPHA_SABLE && ALPHA_GAMMA || ALPHA_NORITAKE && ALPHA_PRIMO || ALPHA_MIKASA && ALPHA_PRIMO || ALPHA_PC164 || ALPHA_TAKARA || ALPHA_EB164 || ALPHA_ALCOR
379
380config ALPHA_EV4
381 bool
382 default y if ALPHA_LYNX && !ALPHA_EV5
383
384config ALPHA_CIA
385 bool
386 depends on ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN || ALPHA_NORITAKE && ALPHA_PRIMO || ALPHA_MIKASA && ALPHA_PRIMO || ALPHA_PC164 || ALPHA_TAKARA || ALPHA_EB164 || ALPHA_ALCOR
387 default y
388
389config ALPHA_EV56
390 bool "EV56 CPU (speed >= 366MHz)?" if ALPHA_ALCOR
391 default y if ALPHA_RX164 || ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN || ALPHA_PC164 || ALPHA_TAKARA
392
393config ALPHA_EV56
394 prompt "EV56 CPU (speed >= 333MHz)?"
Fernando J. Pereda060ec3d2006-09-25 23:32:37 -0700395 depends on ALPHA_NORITAKE || ALPHA_PRIMO
Linus Torvalds1da177e2005-04-16 15:20:36 -0700396
397config ALPHA_EV56
398 prompt "EV56 CPU (speed >= 400MHz)?"
399 depends on ALPHA_RAWHIDE
400
401config ALPHA_PRIMO
402 bool "EV5 CPU daughtercard (model 5/xxx)?"
403 depends on ALPHA_NORITAKE || ALPHA_MIKASA
404 help
405 Say Y if you have an AS 1000 5/xxx or an AS 1000A 5/xxx.
406
407config ALPHA_GAMMA
408 bool "EV5 CPU(s) (model 5/xxx)?"
409 depends on ALPHA_SABLE
410 help
411 Say Y if you have an AS 2000 5/xxx or an AS 2100 5/xxx.
412
413config ALPHA_GAMMA
414 bool
415 depends on ALPHA_LYNX
416 default y
417
418config ALPHA_T2
419 bool
420 depends on ALPHA_SABLE || ALPHA_LYNX
421 default y
422
423config ALPHA_PYXIS
424 bool
425 depends on ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN
426 default y
427
428config ALPHA_EV6
429 bool
430 depends on ALPHA_NAUTILUS || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_DP264 || ALPHA_EIGER || ALPHA_MARVEL
431 default y
432
433config ALPHA_TSUNAMI
434 bool
435 depends on ALPHA_SHARK || ALPHA_DP264 || ALPHA_EIGER
436 default y
437
438config ALPHA_EV67
439 bool "EV67 (or later) CPU (speed > 600MHz)?" if ALPHA_DP264 || ALPHA_EIGER
440 default y if ALPHA_NAUTILUS || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_MARVEL
441 help
442 Is this a machine based on the EV67 core? If in doubt, select N here
443 and the machine will be treated as an EV6.
444
Linus Torvalds1da177e2005-04-16 15:20:36 -0700445config ALPHA_MCPCIA
446 bool
447 depends on ALPHA_RAWHIDE
448 default y
449
450config ALPHA_POLARIS
451 bool
452 depends on ALPHA_RX164
453 default y
454
455config ALPHA_IRONGATE
456 bool
457 depends on ALPHA_NAUTILUS
458 default y
459
Akinobu Mitaf7c29672006-03-26 01:39:18 -0800460config GENERIC_HWEIGHT
461 bool
Randy Dunlap5e625b02006-06-12 15:13:40 -0700462 default y if !ALPHA_EV67
Akinobu Mitaf7c29672006-03-26 01:39:18 -0800463
Linus Torvalds1da177e2005-04-16 15:20:36 -0700464config ALPHA_AVANTI
465 bool
466 depends on ALPHA_XL || ALPHA_AVANTI_CH
467 default y
468 help
469 Avanti AS 200, AS 205, AS 250, AS 255, AS 300, and AS 400-based
470 Alphas. Info at
471 <http://www.unix-ag.org/Linux-Alpha/Architectures/Avanti.html>.
472
473config ALPHA_BROKEN_IRQ_MASK
474 bool
475 depends on ALPHA_GENERIC || ALPHA_PC164
476 default y
477
Jay Estabrook025a2212007-06-01 00:47:03 -0700478config VGA_HOSE
479 bool
480 depends on ALPHA_GENERIC || ALPHA_TITAN || ALPHA_MARVEL || ALPHA_TSUNAMI
481 default y
482 help
483 Support VGA on an arbitrary hose; needed for several platforms
484 which always have multiple hoses, and whose consoles support it.
485
486
Linus Torvalds1da177e2005-04-16 15:20:36 -0700487config ALPHA_SRM
488 bool "Use SRM as bootloader" if ALPHA_CABRIOLET || ALPHA_AVANTI_CH || ALPHA_EB64P || ALPHA_PC164 || ALPHA_TAKARA || ALPHA_EB164 || ALPHA_ALCOR || ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_NAUTILUS || ALPHA_NONAME
489 default y if ALPHA_JENSEN || ALPHA_MIKASA || ALPHA_SABLE || ALPHA_LYNX || ALPHA_NORITAKE || ALPHA_DP264 || ALPHA_RAWHIDE || ALPHA_EIGER || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_MARVEL
490 ---help---
491 There are two different types of booting firmware on Alphas: SRM,
492 which is command line driven, and ARC, which uses menus and arrow
493 keys. Details about the Linux/Alpha booting process are contained in
494 the Linux/Alpha FAQ, accessible on the WWW from
495 <http://www.alphalinux.org/>.
496
497 The usual way to load Linux on an Alpha machine is to use MILO
498 (a bootloader that lets you pass command line parameters to the
499 kernel just like lilo does for the x86 architecture) which can be
500 loaded either from ARC or can be installed directly as a permanent
501 firmware replacement from floppy (which requires changing a certain
502 jumper on the motherboard). If you want to do either of these, say N
503 here. If MILO doesn't work on your system (true for Jensen
504 motherboards), you can bypass it altogether and boot Linux directly
505 from an SRM console; say Y here in order to do that. Note that you
506 won't be able to boot from an IDE disk using SRM.
507
508 If unsure, say N.
509
510config EISA
511 bool
512 depends on ALPHA_GENERIC || ALPHA_JENSEN || ALPHA_ALCOR || ALPHA_MIKASA || ALPHA_SABLE || ALPHA_LYNX || ALPHA_NORITAKE || ALPHA_RAWHIDE
513 default y
514
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100515config ARCH_MAY_HAVE_PC_FDC
516 def_bool y
517
Linus Torvalds1da177e2005-04-16 15:20:36 -0700518config SMP
519 bool "Symmetric multi-processing support"
520 depends on ALPHA_SABLE || ALPHA_LYNX || ALPHA_RAWHIDE || ALPHA_DP264 || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_GENERIC || ALPHA_SHARK || ALPHA_MARVEL
Jens Axboec524a1d2008-06-10 20:47:29 +0200521 select USE_GENERIC_SMP_HELPERS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700522 ---help---
523 This enables support for systems with more than one CPU. If you have
524 a system with only one CPU, like most personal computers, say N. If
525 you have a system with more than one CPU, say Y.
526
527 If you say N here, the kernel will run on single and multiprocessor
528 machines, but will use only one CPU of a multiprocessor machine. If
529 you say Y here, the kernel will run on many, but not all,
530 singleprocessor machines. On a singleprocessor machine, the kernel
531 will run faster if you say N here.
532
Adrian Bunk03502fa2008-02-03 15:50:21 +0200533 See also the SMP-HOWTO available at
534 <http://www.tldp.org/docs.html#howto>.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700535
536 If you don't know what to do here, say N.
537
538config HAVE_DEC_LOCK
539 bool
540 depends on SMP
541 default y
542
543config NR_CPUS
Jay Estabrookd7083172007-06-01 00:47:05 -0700544 int "Maximum number of CPUs (2-32)"
545 range 2 32
Linus Torvalds1da177e2005-04-16 15:20:36 -0700546 depends on SMP
Jay Estabrookd7083172007-06-01 00:47:05 -0700547 default "32" if ALPHA_GENERIC || ALPHA_MARVEL
548 default "4" if !ALPHA_GENERIC && !ALPHA_MARVEL
549 help
550 MARVEL support can handle a maximum of 32 CPUs, all the others
551 with working support have a maximum of 4 CPUs.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700552
Dave Hansen3f22ab22005-06-23 00:07:43 -0700553config ARCH_DISCONTIGMEM_ENABLE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700554 bool "Discontiguous Memory Support (EXPERIMENTAL)"
555 depends on EXPERIMENTAL
556 help
Matt LaPlantefc31e832006-10-03 22:23:47 +0200557 Say Y to support efficient handling of discontiguous physical memory,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700558 for architectures which are either NUMA (Non-Uniform Memory Access)
559 or have huge holes in the physical address space for other reasons.
560 See <file:Documentation/vm/numa> for more.
561
Dave Hansen3f22ab22005-06-23 00:07:43 -0700562source "mm/Kconfig"
563
Linus Torvalds1da177e2005-04-16 15:20:36 -0700564config NUMA
565 bool "NUMA Support (EXPERIMENTAL)"
Al Viro6df7c992005-08-23 22:44:50 +0100566 depends on DISCONTIGMEM && BROKEN
Linus Torvalds1da177e2005-04-16 15:20:36 -0700567 help
568 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
569 Access). This option is for configuring high-end multiprocessor
570 server machines. If in doubt, say N.
571
Yasunori Gotoc80d79d2006-04-10 22:53:53 -0700572config NODES_SHIFT
573 int
574 default "7"
575 depends on NEED_MULTIPLE_NODES
576
Linus Torvalds1da177e2005-04-16 15:20:36 -0700577# LARGE_VMALLOC is racy, if you *really* need it then fix it first
578config ALPHA_LARGE_VMALLOC
579 bool
580 ---help---
581 Process creation and other aspects of virtual memory management can
582 be streamlined if we restrict the kernel to one PGD for all vmalloc
583 allocations. This equates to about 8GB.
584
585 Under normal circumstances, this is so far and above what is needed
586 as to be laughable. However, there are certain applications (such
587 as benchmark-grade in-kernel web serving) that can make use of as
588 much vmalloc space as is available.
589
590 Say N unless you know you need gobs and gobs of vmalloc space.
591
592config VERBOSE_MCHECK
593 bool "Verbose Machine Checks"
594
595config VERBOSE_MCHECK_ON
596 int "Verbose Printing Mode (0=off, 1=on, 2=all)"
597 depends on VERBOSE_MCHECK
598 default 1
599 ---help---
600 This option allows the default printing mode to be set, and then
601 possibly overridden by a boot command argument.
602
603 For example, if one wanted the option of printing verbose
604 machine checks, but wanted the default to be as if verbose
605 machine check printing was turned off, then one would choose
606 the printing mode to be 0. Then, upon reboot, one could add
607 the boot command line "verbose_mcheck=1" to get the normal
608 verbose machine check printing, or "verbose_mcheck=2" to get
609 the maximum information available.
610
611 Take the default (1) unless you want more control or more info.
612
H. Peter Anvinbdc80782008-02-08 04:21:26 -0800613config HZ
614 int
615 default 1200 if ALPHA_RAWHIDE
616 default 1024
617
Linus Torvalds1da177e2005-04-16 15:20:36 -0700618source "drivers/pci/Kconfig"
619source "drivers/eisa/Kconfig"
620
621source "drivers/pcmcia/Kconfig"
622
623config SRM_ENV
624 tristate "SRM environment through procfs"
625 depends on PROC_FS
626 ---help---
627 If you enable this option, a subdirectory inside /proc called
628 /proc/srm_environment will give you access to the all important
629 SRM environment variables (those which have a name) and also
630 to all others (by their internal number).
631
632 SRM is something like a BIOS for Alpha machines. There are some
633 other such BIOSes, like AlphaBIOS, which this driver cannot
634 support (hey, that's not SRM!).
635
636 Despite the fact that this driver doesn't work on all Alphas (but
637 only on those which have SRM as their firmware), it's save to
638 build it even if your particular machine doesn't know about SRM
639 (or if you intend to compile a generic kernel). It will simply
640 not create those subdirectory in /proc (and give you some warning,
641 of course).
642
643 This driver is also available as a module and will be called
644 srm_env then.
645
646source "fs/Kconfig.binfmt"
647
648endmenu
649
Sam Ravnborgd5950b42005-07-11 21:03:49 -0700650source "net/Kconfig"
651
Linus Torvalds1da177e2005-04-16 15:20:36 -0700652source "drivers/Kconfig"
653
654source "fs/Kconfig"
655
Linus Torvalds1da177e2005-04-16 15:20:36 -0700656source "arch/alpha/Kconfig.debug"
657
Jay Estabrook025a2212007-06-01 00:47:03 -0700658# DUMMY_CONSOLE may be defined in drivers/video/console/Kconfig
659# but we also need it if VGA_HOSE is set
660config DUMMY_CONSOLE
661 bool
662 depends on VGA_HOSE
663 default y
664
Linus Torvalds1da177e2005-04-16 15:20:36 -0700665source "security/Kconfig"
666
667source "crypto/Kconfig"
668
669source "lib/Kconfig"
670