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1da177e4 LT |
1 | # |
2 | # For a description of the syntax of this configuration file, | |
3 | # see Documentation/kbuild/kconfig-language.txt. | |
4 | # | |
5 | config ALPHA | |
6 | bool | |
7 | default y | |
8 | help | |
9 | The Alpha is a 64-bit general-purpose processor designed and | |
10 | marketed by the Digital Equipment Corporation of blessed memory, | |
11 | now Hewlett-Packard. The Alpha Linux project has a home page at | |
12 | <http://www.alphalinux.org/>. | |
13 | ||
14 | config 64BIT | |
15 | def_bool y | |
16 | ||
17 | config MMU | |
18 | bool | |
19 | default y | |
20 | ||
1da177e4 LT |
21 | config RWSEM_GENERIC_SPINLOCK |
22 | bool | |
23 | ||
24 | config RWSEM_XCHGADD_ALGORITHM | |
25 | bool | |
26 | default y | |
27 | ||
f7c29678 AM |
28 | config GENERIC_FIND_NEXT_BIT |
29 | bool | |
30 | default y | |
31 | ||
1da177e4 LT |
32 | config GENERIC_CALIBRATE_DELAY |
33 | bool | |
34 | default y | |
35 | ||
36 | config GENERIC_ISA_DMA | |
37 | bool | |
38 | default y | |
39 | ||
40 | config GENERIC_IOMAP | |
41 | bool | |
42 | default n | |
43 | ||
0595bf3b IK |
44 | config GENERIC_HARDIRQS |
45 | bool | |
46 | default y | |
47 | ||
48 | config GENERIC_IRQ_PROBE | |
49 | bool | |
50 | default y | |
51 | ||
52 | config AUTO_IRQ_AFFINITY | |
53 | bool | |
54 | depends on SMP | |
55 | default y | |
56 | ||
1da177e4 LT |
57 | source "init/Kconfig" |
58 | ||
59 | ||
60 | menu "System setup" | |
61 | ||
62 | choice | |
63 | prompt "Alpha system type" | |
64 | default ALPHA_GENERIC | |
65 | ---help--- | |
66 | This is the system type of your hardware. A "generic" kernel will | |
67 | run on any supported Alpha system. However, if you configure a | |
68 | kernel for your specific system, it will be faster and smaller. | |
69 | ||
70 | To find out what type of Alpha system you have, you may want to | |
71 | check out the Linux/Alpha FAQ, accessible on the WWW from | |
72 | <http://www.alphalinux.org/>. In summary: | |
73 | ||
74 | Alcor/Alpha-XLT AS 600 | |
75 | Alpha-XL XL-233, XL-266 | |
76 | AlphaBook1 Alpha laptop | |
77 | Avanti AS 200, AS 205, AS 250, AS 255, AS 300, AS 400 | |
78 | Cabriolet AlphaPC64, AlphaPCI64 | |
79 | DP264 DP264 | |
80 | EB164 EB164 21164 evaluation board | |
81 | EB64+ EB64+ 21064 evaluation board | |
82 | EB66 EB66 21066 evaluation board | |
83 | EB66+ EB66+ 21066 evaluation board | |
84 | Jensen DECpc 150, DEC 2000 model 300, | |
85 | DEC 2000 model 500 | |
86 | LX164 AlphaPC164-LX | |
87 | Lynx AS 2100A | |
88 | Miata Personal Workstation 433a, 433au, 500a, | |
89 | 500au, 600a, or 600au | |
90 | Marvel AlphaServer ES47 / ES80 / GS1280 | |
91 | Mikasa AS 1000 | |
92 | Noname AXPpci33, UDB (Multia) | |
93 | Noritake AS 1000A, AS 600A, AS 800 | |
94 | PC164 AlphaPC164 | |
95 | Rawhide AS 1200, AS 4000, AS 4100 | |
96 | Ruffian RPX164-2, AlphaPC164-UX, AlphaPC164-BX | |
97 | SX164 AlphaPC164-SX | |
98 | Sable AS 2000, AS 2100 | |
99 | Shark DS 20L | |
100 | Takara Takara | |
101 | Titan AlphaServer ES45 / DS25 | |
102 | Wildfire AlphaServer GS 40/80/160/320 | |
103 | ||
104 | If you don't know what to do, choose "generic". | |
105 | ||
106 | config ALPHA_GENERIC | |
107 | bool "Generic" | |
108 | help | |
109 | A generic kernel will run on all supported Alpha hardware. | |
110 | ||
111 | config ALPHA_ALCOR | |
112 | bool "Alcor/Alpha-XLT" | |
113 | help | |
114 | For systems using the Digital ALCOR chipset: 5 chips (4, 64-bit data | |
115 | slices (Data Switch, DSW) - 208-pin PQFP and 1 control (Control, I/O | |
116 | Address, CIA) - a 383 pin plastic PGA). It provides a DRAM | |
117 | controller (256-bit memory bus) and a PCI interface. It also does | |
118 | all the work required to support an external Bcache and to maintain | |
119 | memory coherence when a PCI device DMAs into (or out of) memory. | |
120 | ||
121 | config ALPHA_XL | |
122 | bool "Alpha-XL" | |
123 | help | |
124 | XL-233 and XL-266-based Alpha systems. | |
125 | ||
126 | config ALPHA_BOOK1 | |
127 | bool "AlphaBook1" | |
128 | help | |
129 | Dec AlphaBook1/Burns Alpha-based laptops. | |
130 | ||
131 | config ALPHA_AVANTI_CH | |
132 | bool "Avanti" | |
133 | ||
134 | config ALPHA_CABRIOLET | |
135 | bool "Cabriolet" | |
136 | help | |
137 | Cabriolet AlphaPC64, AlphaPCI64 systems. Derived from EB64+ but now | |
138 | baby-AT with Flash boot ROM, no on-board SCSI or Ethernet. 3 ISA | |
139 | slots, 4 PCI slots (one pair are on a shared slot), uses plug-in | |
140 | Bcache SIMMs. Requires power supply with 3.3V output. | |
141 | ||
142 | config ALPHA_DP264 | |
143 | bool "DP264" | |
144 | help | |
145 | Various 21264 systems with the tsunami core logic chipset. | |
146 | API Networks: 264DP, UP2000(+), CS20; | |
147 | Compaq: DS10(E,L), XP900, XP1000, DS20(E), ES40. | |
148 | ||
149 | config ALPHA_EB164 | |
150 | bool "EB164" | |
151 | help | |
152 | EB164 21164 evaluation board from DEC. Uses 21164 and ALCOR. Has | |
153 | ISA and PCI expansion (3 ISA slots, 2 64-bit PCI slots (one is | |
154 | shared with an ISA slot) and 2 32-bit PCI slots. Uses plus-in | |
155 | Bcache SIMMs. I/O sub-system provides SuperI/O (2S, 1P, FD), KBD, | |
156 | MOUSE (PS2 style), RTC/NVRAM. Boot ROM is Flash. PC-AT-sized | |
157 | motherboard. Requires power supply with 3.3V output. | |
158 | ||
159 | config ALPHA_EB64P_CH | |
160 | bool "EB64+" | |
161 | ||
162 | config ALPHA_EB66 | |
163 | bool "EB66" | |
164 | help | |
165 | A Digital DS group board. Uses 21066 or 21066A. I/O sub-system is | |
166 | identical to EB64+. Baby PC-AT size. Runs from standard PC power | |
167 | supply. The EB66 schematic was published as a marketing poster | |
168 | advertising the 21066 as "the first microprocessor in the world with | |
169 | embedded PCI". | |
170 | ||
171 | config ALPHA_EB66P | |
172 | bool "EB66+" | |
173 | help | |
174 | Later variant of the EB66 board. | |
175 | ||
176 | config ALPHA_EIGER | |
177 | bool "Eiger" | |
178 | help | |
179 | Apparently an obscure OEM single-board computer based on the | |
180 | Typhoon/Tsunami chipset family. Information on it is scanty. | |
181 | ||
182 | config ALPHA_JENSEN | |
183 | bool "Jensen" | |
184 | help | |
185 | DEC PC 150 AXP (aka Jensen): This is a very old Digital system - one | |
186 | of the first-generation Alpha systems. A number of these systems | |
187 | seem to be available on the second- hand market. The Jensen is a | |
188 | floor-standing tower system which originally used a 150MHz 21064 It | |
189 | used programmable logic to interface a 486 EISA I/O bridge to the | |
190 | CPU. | |
191 | ||
192 | config ALPHA_LX164 | |
193 | bool "LX164" | |
194 | help | |
195 | A technical overview of this board is available at | |
196 | <http://www.unix-ag.org/Linux-Alpha/Architectures/LX164.html>. | |
197 | ||
198 | config ALPHA_LYNX | |
199 | bool "Lynx" | |
200 | help | |
201 | AlphaServer 2100A-based systems. | |
202 | ||
203 | config ALPHA_MARVEL | |
204 | bool "Marvel" | |
205 | help | |
206 | AlphaServer ES47 / ES80 / GS1280 based on EV7. | |
207 | ||
208 | config ALPHA_MIATA | |
209 | bool "Miata" | |
210 | help | |
211 | The Digital PersonalWorkStation (PWS 433a, 433au, 500a, 500au, 600a, | |
212 | or 600au). There is an Installation HOWTO for this hardware at | |
213 | <http://eijk.homelinux.org/~stefan/miata.html>. | |
214 | ||
215 | config ALPHA_MIKASA | |
216 | bool "Mikasa" | |
217 | help | |
218 | AlphaServer 1000-based Alpha systems. | |
219 | ||
220 | config ALPHA_NAUTILUS | |
221 | bool "Nautilus" | |
222 | help | |
223 | Alpha systems based on the AMD 751 & ALI 1543C chipsets. | |
224 | ||
225 | config ALPHA_NONAME_CH | |
226 | bool "Noname" | |
227 | ||
228 | config ALPHA_NORITAKE | |
229 | bool "Noritake" | |
230 | help | |
231 | AlphaServer 1000A, AlphaServer 600A, and AlphaServer 800-based | |
232 | systems. | |
233 | ||
234 | config ALPHA_PC164 | |
235 | bool "PC164" | |
236 | ||
237 | config ALPHA_P2K | |
238 | bool "Platform2000" | |
239 | ||
240 | config ALPHA_RAWHIDE | |
241 | bool "Rawhide" | |
242 | help | |
243 | AlphaServer 1200, AlphaServer 4000 and AlphaServer 4100 machines. | |
244 | See HOWTO at | |
245 | <http://www.alphalinux.org/docs/rawhide/4100_install.shtml>. | |
246 | ||
247 | config ALPHA_RUFFIAN | |
248 | bool "Ruffian" | |
249 | help | |
250 | Samsung APC164UX. There is a page on known problems and workarounds | |
251 | at <http://www.alphalinux.org/faq/FAQ-11.html>. | |
252 | ||
253 | config ALPHA_RX164 | |
254 | bool "RX164" | |
255 | ||
256 | config ALPHA_SX164 | |
257 | bool "SX164" | |
258 | ||
259 | config ALPHA_SABLE | |
260 | bool "Sable" | |
261 | help | |
262 | Digital AlphaServer 2000 and 2100-based systems. | |
263 | ||
264 | config ALPHA_SHARK | |
265 | bool "Shark" | |
266 | ||
267 | config ALPHA_TAKARA | |
268 | bool "Takara" | |
269 | help | |
270 | Alpha 11164-based OEM single-board computer. | |
271 | ||
272 | config ALPHA_TITAN | |
273 | bool "Titan" | |
274 | help | |
275 | AlphaServer ES45/DS25 SMP based on EV68 and Titan chipset. | |
276 | ||
277 | config ALPHA_WILDFIRE | |
278 | bool "Wildfire" | |
279 | help | |
280 | AlphaServer GS 40/80/160/320 SMP based on the EV67 core. | |
281 | ||
282 | endchoice | |
283 | ||
284 | # clear all implied options (don't want default values for those): | |
285 | # Most of these machines have ISA slots; not exactly sure which don't, | |
286 | # and this doesn't activate hordes of code, so do it always. | |
287 | config ISA | |
288 | bool | |
289 | default y | |
290 | help | |
291 | Find out whether you have ISA slots on your motherboard. ISA is the | |
292 | name of a bus system, i.e. the way the CPU talks to the other stuff | |
293 | inside your box. Other bus systems are PCI, EISA, MicroChannel | |
294 | (MCA) or VESA. ISA is an older system, now being displaced by PCI; | |
295 | newer boards don't support it. If you have ISA, say Y, otherwise N. | |
296 | ||
5cae841b AV |
297 | config ISA_DMA_API |
298 | bool | |
299 | default y | |
300 | ||
1da177e4 LT |
301 | config PCI |
302 | bool | |
303 | depends on !ALPHA_JENSEN | |
304 | default y | |
305 | help | |
306 | Find out whether you have a PCI motherboard. PCI is the name of a | |
307 | bus system, i.e. the way the CPU talks to the other stuff inside | |
308 | your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or | |
309 | VESA. If you have PCI, say Y, otherwise N. | |
310 | ||
311 | The PCI-HOWTO, available from | |
312 | <http://www.tldp.org/docs.html#howto>, contains valuable | |
313 | information about which PCI hardware does work under Linux and which | |
314 | doesn't. | |
315 | ||
316 | config PCI_DOMAINS | |
317 | bool | |
318 | default y | |
319 | ||
320 | config ALPHA_CORE_AGP | |
321 | bool | |
322 | depends on ALPHA_GENERIC || ALPHA_TITAN || ALPHA_MARVEL | |
323 | default y | |
324 | ||
325 | config ALPHA_NONAME | |
326 | bool | |
327 | depends on ALPHA_BOOK1 || ALPHA_NONAME_CH | |
328 | default y | |
329 | help | |
330 | The AXPpci33 (aka NoName), is based on the EB66 (includes the Multia | |
331 | UDB). This design was produced by Digital's Technical OEM (TOEM) | |
332 | group. It uses the 21066 processor running at 166MHz or 233MHz. It | |
333 | is a baby-AT size, and runs from a standard PC power supply. It has | |
334 | 5 ISA slots and 3 PCI slots (one pair are a shared slot). There are | |
335 | 2 versions, with either PS/2 or large DIN connectors for the | |
336 | keyboard. | |
337 | ||
338 | config ALPHA_EV4 | |
339 | bool | |
340 | 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 | |
341 | default y if !ALPHA_LYNX | |
342 | ||
343 | config ALPHA_LCA | |
344 | bool | |
345 | depends on ALPHA_NONAME || ALPHA_EB66 || ALPHA_EB66P || ALPHA_P2K | |
346 | default y | |
347 | ||
348 | config ALPHA_APECS | |
349 | bool | |
350 | depends on !ALPHA_PRIMO && (ALPHA_NORITAKE || ALPHA_MIKASA) || ALPHA_CABRIOLET || ALPHA_AVANTI_CH || ALPHA_EB64P_CH || ALPHA_XL | |
351 | default y | |
352 | ||
353 | config ALPHA_EB64P | |
354 | bool | |
355 | depends on ALPHA_CABRIOLET || ALPHA_EB64P_CH | |
356 | default y | |
357 | help | |
358 | Uses 21064 or 21064A and APECs. Has ISA and PCI expansion (3 ISA, | |
359 | 2 PCI, one pair are on a shared slot). Supports 36-bit DRAM SIMs. | |
360 | ISA bus generated by Intel SaturnI/O PCI-ISA bridge. On-board SCSI | |
361 | (NCR 810 on PCI) Ethernet (Digital 21040), KBD, MOUSE (PS2 style), | |
362 | SuperI/O (2S, 1P, FD), RTC/NVRAM. Boot ROM is EPROM. PC-AT size. | |
363 | Runs from standard PC power supply. | |
364 | ||
365 | config ALPHA_EV5 | |
366 | bool "EV5 CPU(s) (model 5/xxx)?" if ALPHA_LYNX | |
367 | 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 | |
368 | ||
369 | config ALPHA_EV4 | |
370 | bool | |
371 | default y if ALPHA_LYNX && !ALPHA_EV5 | |
372 | ||
373 | config ALPHA_CIA | |
374 | bool | |
375 | 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 | |
376 | default y | |
377 | ||
378 | config ALPHA_EV56 | |
379 | bool "EV56 CPU (speed >= 366MHz)?" if ALPHA_ALCOR | |
380 | default y if ALPHA_RX164 || ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN || ALPHA_PC164 || ALPHA_TAKARA | |
381 | ||
382 | config ALPHA_EV56 | |
383 | prompt "EV56 CPU (speed >= 333MHz)?" | |
384 | depends on ALPHA_NORITAKE && ALPHA_PRIMO | |
385 | ||
386 | config ALPHA_EV56 | |
387 | prompt "EV56 CPU (speed >= 400MHz)?" | |
388 | depends on ALPHA_RAWHIDE | |
389 | ||
390 | config ALPHA_PRIMO | |
391 | bool "EV5 CPU daughtercard (model 5/xxx)?" | |
392 | depends on ALPHA_NORITAKE || ALPHA_MIKASA | |
393 | help | |
394 | Say Y if you have an AS 1000 5/xxx or an AS 1000A 5/xxx. | |
395 | ||
396 | config ALPHA_GAMMA | |
397 | bool "EV5 CPU(s) (model 5/xxx)?" | |
398 | depends on ALPHA_SABLE | |
399 | help | |
400 | Say Y if you have an AS 2000 5/xxx or an AS 2100 5/xxx. | |
401 | ||
402 | config ALPHA_GAMMA | |
403 | bool | |
404 | depends on ALPHA_LYNX | |
405 | default y | |
406 | ||
407 | config ALPHA_T2 | |
408 | bool | |
409 | depends on ALPHA_SABLE || ALPHA_LYNX | |
410 | default y | |
411 | ||
412 | config ALPHA_PYXIS | |
413 | bool | |
414 | depends on ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN | |
415 | default y | |
416 | ||
417 | config ALPHA_EV6 | |
418 | bool | |
419 | depends on ALPHA_NAUTILUS || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_DP264 || ALPHA_EIGER || ALPHA_MARVEL | |
420 | default y | |
421 | ||
422 | config ALPHA_TSUNAMI | |
423 | bool | |
424 | depends on ALPHA_SHARK || ALPHA_DP264 || ALPHA_EIGER | |
425 | default y | |
426 | ||
427 | config ALPHA_EV67 | |
428 | bool "EV67 (or later) CPU (speed > 600MHz)?" if ALPHA_DP264 || ALPHA_EIGER | |
429 | default y if ALPHA_NAUTILUS || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_MARVEL | |
430 | help | |
431 | Is this a machine based on the EV67 core? If in doubt, select N here | |
432 | and the machine will be treated as an EV6. | |
433 | ||
434 | config ALPHA_EV7 | |
435 | bool | |
436 | depends on ALPHA_MARVEL | |
437 | default y | |
438 | ||
439 | config ALPHA_MCPCIA | |
440 | bool | |
441 | depends on ALPHA_RAWHIDE | |
442 | default y | |
443 | ||
444 | config ALPHA_POLARIS | |
445 | bool | |
446 | depends on ALPHA_RX164 | |
447 | default y | |
448 | ||
449 | config ALPHA_IRONGATE | |
450 | bool | |
451 | depends on ALPHA_NAUTILUS | |
452 | default y | |
453 | ||
f7c29678 AM |
454 | config GENERIC_HWEIGHT |
455 | bool | |
5e625b08 | 456 | default y if !ALPHA_EV67 |
f7c29678 | 457 | |
1da177e4 LT |
458 | config ALPHA_AVANTI |
459 | bool | |
460 | depends on ALPHA_XL || ALPHA_AVANTI_CH | |
461 | default y | |
462 | help | |
463 | Avanti AS 200, AS 205, AS 250, AS 255, AS 300, and AS 400-based | |
464 | Alphas. Info at | |
465 | <http://www.unix-ag.org/Linux-Alpha/Architectures/Avanti.html>. | |
466 | ||
467 | config ALPHA_BROKEN_IRQ_MASK | |
468 | bool | |
469 | depends on ALPHA_GENERIC || ALPHA_PC164 | |
470 | default y | |
471 | ||
472 | config ALPHA_SRM | |
473 | 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 | |
474 | 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 | |
475 | ---help--- | |
476 | There are two different types of booting firmware on Alphas: SRM, | |
477 | which is command line driven, and ARC, which uses menus and arrow | |
478 | keys. Details about the Linux/Alpha booting process are contained in | |
479 | the Linux/Alpha FAQ, accessible on the WWW from | |
480 | <http://www.alphalinux.org/>. | |
481 | ||
482 | The usual way to load Linux on an Alpha machine is to use MILO | |
483 | (a bootloader that lets you pass command line parameters to the | |
484 | kernel just like lilo does for the x86 architecture) which can be | |
485 | loaded either from ARC or can be installed directly as a permanent | |
486 | firmware replacement from floppy (which requires changing a certain | |
487 | jumper on the motherboard). If you want to do either of these, say N | |
488 | here. If MILO doesn't work on your system (true for Jensen | |
489 | motherboards), you can bypass it altogether and boot Linux directly | |
490 | from an SRM console; say Y here in order to do that. Note that you | |
491 | won't be able to boot from an IDE disk using SRM. | |
492 | ||
493 | If unsure, say N. | |
494 | ||
495 | config EISA | |
496 | bool | |
497 | depends on ALPHA_GENERIC || ALPHA_JENSEN || ALPHA_ALCOR || ALPHA_MIKASA || ALPHA_SABLE || ALPHA_LYNX || ALPHA_NORITAKE || ALPHA_RAWHIDE | |
498 | default y | |
499 | ||
a08b6b79 AV |
500 | config ARCH_MAY_HAVE_PC_FDC |
501 | def_bool y | |
502 | ||
1da177e4 LT |
503 | config SMP |
504 | bool "Symmetric multi-processing support" | |
505 | depends on ALPHA_SABLE || ALPHA_LYNX || ALPHA_RAWHIDE || ALPHA_DP264 || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_GENERIC || ALPHA_SHARK || ALPHA_MARVEL | |
506 | ---help--- | |
507 | This enables support for systems with more than one CPU. If you have | |
508 | a system with only one CPU, like most personal computers, say N. If | |
509 | you have a system with more than one CPU, say Y. | |
510 | ||
511 | If you say N here, the kernel will run on single and multiprocessor | |
512 | machines, but will use only one CPU of a multiprocessor machine. If | |
513 | you say Y here, the kernel will run on many, but not all, | |
514 | singleprocessor machines. On a singleprocessor machine, the kernel | |
515 | will run faster if you say N here. | |
516 | ||
517 | See also the <file:Documentation/smp.txt>, and the SMP-HOWTO | |
518 | available at <http://www.tldp.org/docs.html#howto>. | |
519 | ||
520 | If you don't know what to do here, say N. | |
521 | ||
522 | config HAVE_DEC_LOCK | |
523 | bool | |
524 | depends on SMP | |
525 | default y | |
526 | ||
527 | config NR_CPUS | |
528 | int "Maximum number of CPUs (2-64)" | |
529 | range 2 64 | |
530 | depends on SMP | |
531 | default "64" | |
532 | ||
3f22ab27 | 533 | config ARCH_DISCONTIGMEM_ENABLE |
1da177e4 LT |
534 | bool "Discontiguous Memory Support (EXPERIMENTAL)" |
535 | depends on EXPERIMENTAL | |
536 | help | |
537 | Say Y to upport efficient handling of discontiguous physical memory, | |
538 | for architectures which are either NUMA (Non-Uniform Memory Access) | |
539 | or have huge holes in the physical address space for other reasons. | |
540 | See <file:Documentation/vm/numa> for more. | |
541 | ||
3f22ab27 DH |
542 | source "mm/Kconfig" |
543 | ||
1da177e4 LT |
544 | config NUMA |
545 | bool "NUMA Support (EXPERIMENTAL)" | |
6df7c994 | 546 | depends on DISCONTIGMEM && BROKEN |
1da177e4 LT |
547 | help |
548 | Say Y to compile the kernel to support NUMA (Non-Uniform Memory | |
549 | Access). This option is for configuring high-end multiprocessor | |
550 | server machines. If in doubt, say N. | |
551 | ||
c80d79d7 YG |
552 | config NODES_SHIFT |
553 | int | |
554 | default "7" | |
555 | depends on NEED_MULTIPLE_NODES | |
556 | ||
1da177e4 LT |
557 | # LARGE_VMALLOC is racy, if you *really* need it then fix it first |
558 | config ALPHA_LARGE_VMALLOC | |
559 | bool | |
560 | ---help--- | |
561 | Process creation and other aspects of virtual memory management can | |
562 | be streamlined if we restrict the kernel to one PGD for all vmalloc | |
563 | allocations. This equates to about 8GB. | |
564 | ||
565 | Under normal circumstances, this is so far and above what is needed | |
566 | as to be laughable. However, there are certain applications (such | |
567 | as benchmark-grade in-kernel web serving) that can make use of as | |
568 | much vmalloc space as is available. | |
569 | ||
570 | Say N unless you know you need gobs and gobs of vmalloc space. | |
571 | ||
572 | config VERBOSE_MCHECK | |
573 | bool "Verbose Machine Checks" | |
574 | ||
575 | config VERBOSE_MCHECK_ON | |
576 | int "Verbose Printing Mode (0=off, 1=on, 2=all)" | |
577 | depends on VERBOSE_MCHECK | |
578 | default 1 | |
579 | ---help--- | |
580 | This option allows the default printing mode to be set, and then | |
581 | possibly overridden by a boot command argument. | |
582 | ||
583 | For example, if one wanted the option of printing verbose | |
584 | machine checks, but wanted the default to be as if verbose | |
585 | machine check printing was turned off, then one would choose | |
586 | the printing mode to be 0. Then, upon reboot, one could add | |
587 | the boot command line "verbose_mcheck=1" to get the normal | |
588 | verbose machine check printing, or "verbose_mcheck=2" to get | |
589 | the maximum information available. | |
590 | ||
591 | Take the default (1) unless you want more control or more info. | |
592 | ||
593 | source "drivers/pci/Kconfig" | |
594 | source "drivers/eisa/Kconfig" | |
595 | ||
596 | source "drivers/pcmcia/Kconfig" | |
597 | ||
598 | config SRM_ENV | |
599 | tristate "SRM environment through procfs" | |
600 | depends on PROC_FS | |
601 | ---help--- | |
602 | If you enable this option, a subdirectory inside /proc called | |
603 | /proc/srm_environment will give you access to the all important | |
604 | SRM environment variables (those which have a name) and also | |
605 | to all others (by their internal number). | |
606 | ||
607 | SRM is something like a BIOS for Alpha machines. There are some | |
608 | other such BIOSes, like AlphaBIOS, which this driver cannot | |
609 | support (hey, that's not SRM!). | |
610 | ||
611 | Despite the fact that this driver doesn't work on all Alphas (but | |
612 | only on those which have SRM as their firmware), it's save to | |
613 | build it even if your particular machine doesn't know about SRM | |
614 | (or if you intend to compile a generic kernel). It will simply | |
615 | not create those subdirectory in /proc (and give you some warning, | |
616 | of course). | |
617 | ||
618 | This driver is also available as a module and will be called | |
619 | srm_env then. | |
620 | ||
621 | source "fs/Kconfig.binfmt" | |
622 | ||
623 | endmenu | |
624 | ||
d5950b43 SR |
625 | source "net/Kconfig" |
626 | ||
1da177e4 LT |
627 | source "drivers/Kconfig" |
628 | ||
629 | source "fs/Kconfig" | |
630 | ||
631 | source "arch/alpha/oprofile/Kconfig" | |
632 | ||
633 | source "arch/alpha/Kconfig.debug" | |
634 | ||
635 | source "security/Kconfig" | |
636 | ||
637 | source "crypto/Kconfig" | |
638 | ||
639 | source "lib/Kconfig" | |
640 |