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Linus Torvalds1da177e2005-04-16 15:20:36 -07001config ALPHA
2 bool
3 default y
Mark Salter1571ed02013-10-07 19:51:52 -04004 select ARCH_MIGHT_HAVE_PC_PARPORT
David Woodhousee17c6d52008-06-17 12:19:34 +01005 select HAVE_AOUT
Sam Ravnborgec7748b2008-02-09 10:46:40 +01006 select HAVE_IDE
Mathieu Desnoyers42d4b832008-02-02 15:10:34 -05007 select HAVE_OPROFILE
Ralf Baechle8761f1a2011-06-01 19:05:09 +01008 select HAVE_PCSPKR_PLATFORM
Michael Creea582e6f2009-12-08 14:27:01 -05009 select HAVE_PERF_EVENTS
FUJITA Tomonoric186cac2010-03-10 15:23:37 -080010 select HAVE_DMA_ATTRS
Stephen Rothwell4febd952013-03-07 15:48:16 +110011 select VIRT_TO_BUS
Thomas Gleixnere27ec642011-01-19 20:27:11 +010012 select GENERIC_IRQ_PROBE
13 select AUTO_IRQ_AFFINITY if SMP
Thomas Gleixnera6e120e2011-03-25 22:20:51 +010014 select GENERIC_IRQ_SHOW
Mark Brown81ee42b2011-05-24 17:12:57 -070015 select ARCH_WANT_OPTIONAL_GPIOLIB
Will Deaconc1d7e012012-07-30 14:42:46 -070016 select ARCH_WANT_IPC_PARSE_VERSION
Huang Yingdf013ff2011-07-13 13:14:22 +080017 select ARCH_HAVE_NMI_SAFE_CMPXCHG
Richard Henderson748a76b2013-07-11 08:04:20 -070018 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
Richard Hendersona1659d62013-07-14 10:57:34 -070019 select GENERIC_CLOCKEVENTS
Thomas Gleixner2ec94152012-04-20 13:05:55 +000020 select GENERIC_SMP_IDLE_THREAD
Michael Creef2db6332012-08-19 14:40:58 +120021 select GENERIC_STRNCPY_FROM_USER
22 select GENERIC_STRNLEN_USER
David Howells786d35d2012-09-28 14:31:03 +093023 select HAVE_MOD_ARCH_SPECIFIC
24 select MODULES_USE_ELF_RELA
Al Viroeaca6ea2012-11-25 23:12:10 -050025 select ODD_RT_SIGACTION
Al Viro302627e2012-12-25 16:30:23 -050026 select OLD_SIGSUSPEND
Linus Torvalds1da177e2005-04-16 15:20:36 -070027 help
28 The Alpha is a 64-bit general-purpose processor designed and
29 marketed by the Digital Equipment Corporation of blessed memory,
30 now Hewlett-Packard. The Alpha Linux project has a home page at
31 <http://www.alphalinux.org/>.
32
33config 64BIT
34 def_bool y
35
36config MMU
37 bool
38 default y
39
Linus Torvalds1da177e2005-04-16 15:20:36 -070040config RWSEM_GENERIC_SPINLOCK
41 bool
42
43config RWSEM_XCHGADD_ALGORITHM
44 bool
45 default y
46
David Howellsf0d1b0b2006-12-08 02:37:49 -080047config ARCH_HAS_ILOG2_U32
48 bool
49 default n
50
51config ARCH_HAS_ILOG2_U64
52 bool
53 default n
54
Linus Torvalds1da177e2005-04-16 15:20:36 -070055config GENERIC_CALIBRATE_DELAY
56 bool
57 default y
58
Christoph Lameter5ac6da62007-02-10 01:43:14 -080059config ZONE_DMA
60 bool
61 default y
62
FUJITA Tomonori947272d2010-10-26 14:22:15 -070063config ARCH_DMA_ADDR_T_64BIT
64 def_bool y
65
FUJITA Tomonori08d925b2010-03-10 15:23:23 -080066config NEED_DMA_MAP_STATE
67 def_bool y
68
FUJITA Tomonori48c7cf42010-05-26 14:44:34 -070069config NEED_SG_DMA_LENGTH
70 def_bool y
71
Linus Torvalds1da177e2005-04-16 15:20:36 -070072config GENERIC_ISA_DMA
73 bool
74 default y
75
Linus Torvalds1da177e2005-04-16 15:20:36 -070076source "init/Kconfig"
Matt Helsleydc52ddc2008-10-18 20:27:21 -070077source "kernel/Kconfig.freezer"
Linus Torvalds1da177e2005-04-16 15:20:36 -070078
79
80menu "System setup"
81
82choice
83 prompt "Alpha system type"
84 default ALPHA_GENERIC
85 ---help---
86 This is the system type of your hardware. A "generic" kernel will
87 run on any supported Alpha system. However, if you configure a
88 kernel for your specific system, it will be faster and smaller.
89
90 To find out what type of Alpha system you have, you may want to
91 check out the Linux/Alpha FAQ, accessible on the WWW from
92 <http://www.alphalinux.org/>. In summary:
93
Jay Estabrookd7083172007-06-01 00:47:05 -070094 Alcor/Alpha-XLT AS 600, AS 500, XL-300, XL-366
Linus Torvalds1da177e2005-04-16 15:20:36 -070095 Alpha-XL XL-233, XL-266
96 AlphaBook1 Alpha laptop
97 Avanti AS 200, AS 205, AS 250, AS 255, AS 300, AS 400
98 Cabriolet AlphaPC64, AlphaPCI64
Jay Estabrookd7083172007-06-01 00:47:05 -070099 DP264 DP264 / DS20 / ES40 / DS10 / DS10L
Linus Torvalds1da177e2005-04-16 15:20:36 -0700100 EB164 EB164 21164 evaluation board
101 EB64+ EB64+ 21064 evaluation board
102 EB66 EB66 21066 evaluation board
103 EB66+ EB66+ 21066 evaluation board
Jay Estabrookd7083172007-06-01 00:47:05 -0700104 Jensen DECpc 150, DEC 2000 models 300, 500
Linus Torvalds1da177e2005-04-16 15:20:36 -0700105 LX164 AlphaPC164-LX
106 Lynx AS 2100A
Jay Estabrookd7083172007-06-01 00:47:05 -0700107 Miata Personal Workstation 433/500/600 a/au
Linus Torvalds1da177e2005-04-16 15:20:36 -0700108 Marvel AlphaServer ES47 / ES80 / GS1280
109 Mikasa AS 1000
110 Noname AXPpci33, UDB (Multia)
111 Noritake AS 1000A, AS 600A, AS 800
112 PC164 AlphaPC164
113 Rawhide AS 1200, AS 4000, AS 4100
114 Ruffian RPX164-2, AlphaPC164-UX, AlphaPC164-BX
115 SX164 AlphaPC164-SX
116 Sable AS 2000, AS 2100
Jay Estabrookd7083172007-06-01 00:47:05 -0700117 Shark DS 20L
118 Takara Takara (OEM)
119 Titan AlphaServer ES45 / DS25 / DS15
Linus Torvalds1da177e2005-04-16 15:20:36 -0700120 Wildfire AlphaServer GS 40/80/160/320
121
122 If you don't know what to do, choose "generic".
123
124config ALPHA_GENERIC
125 bool "Generic"
Joe Millenbach4f73bc42013-01-17 22:44:22 -0800126 depends on TTY
Linus Torvalds1da177e2005-04-16 15:20:36 -0700127 help
128 A generic kernel will run on all supported Alpha hardware.
129
130config ALPHA_ALCOR
131 bool "Alcor/Alpha-XLT"
132 help
133 For systems using the Digital ALCOR chipset: 5 chips (4, 64-bit data
134 slices (Data Switch, DSW) - 208-pin PQFP and 1 control (Control, I/O
135 Address, CIA) - a 383 pin plastic PGA). It provides a DRAM
136 controller (256-bit memory bus) and a PCI interface. It also does
137 all the work required to support an external Bcache and to maintain
138 memory coherence when a PCI device DMAs into (or out of) memory.
139
140config ALPHA_XL
141 bool "Alpha-XL"
142 help
143 XL-233 and XL-266-based Alpha systems.
144
145config ALPHA_BOOK1
146 bool "AlphaBook1"
147 help
148 Dec AlphaBook1/Burns Alpha-based laptops.
149
150config ALPHA_AVANTI_CH
151 bool "Avanti"
152
153config ALPHA_CABRIOLET
154 bool "Cabriolet"
155 help
156 Cabriolet AlphaPC64, AlphaPCI64 systems. Derived from EB64+ but now
157 baby-AT with Flash boot ROM, no on-board SCSI or Ethernet. 3 ISA
158 slots, 4 PCI slots (one pair are on a shared slot), uses plug-in
159 Bcache SIMMs. Requires power supply with 3.3V output.
160
161config ALPHA_DP264
162 bool "DP264"
163 help
164 Various 21264 systems with the tsunami core logic chipset.
165 API Networks: 264DP, UP2000(+), CS20;
166 Compaq: DS10(E,L), XP900, XP1000, DS20(E), ES40.
167
168config ALPHA_EB164
169 bool "EB164"
170 help
171 EB164 21164 evaluation board from DEC. Uses 21164 and ALCOR. Has
172 ISA and PCI expansion (3 ISA slots, 2 64-bit PCI slots (one is
173 shared with an ISA slot) and 2 32-bit PCI slots. Uses plus-in
174 Bcache SIMMs. I/O sub-system provides SuperI/O (2S, 1P, FD), KBD,
175 MOUSE (PS2 style), RTC/NVRAM. Boot ROM is Flash. PC-AT-sized
176 motherboard. Requires power supply with 3.3V output.
177
178config ALPHA_EB64P_CH
179 bool "EB64+"
180
181config ALPHA_EB66
182 bool "EB66"
183 help
184 A Digital DS group board. Uses 21066 or 21066A. I/O sub-system is
185 identical to EB64+. Baby PC-AT size. Runs from standard PC power
186 supply. The EB66 schematic was published as a marketing poster
187 advertising the 21066 as "the first microprocessor in the world with
188 embedded PCI".
189
190config ALPHA_EB66P
191 bool "EB66+"
192 help
193 Later variant of the EB66 board.
194
195config ALPHA_EIGER
196 bool "Eiger"
197 help
198 Apparently an obscure OEM single-board computer based on the
199 Typhoon/Tsunami chipset family. Information on it is scanty.
200
201config ALPHA_JENSEN
202 bool "Jensen"
203 help
204 DEC PC 150 AXP (aka Jensen): This is a very old Digital system - one
205 of the first-generation Alpha systems. A number of these systems
206 seem to be available on the second- hand market. The Jensen is a
207 floor-standing tower system which originally used a 150MHz 21064 It
208 used programmable logic to interface a 486 EISA I/O bridge to the
209 CPU.
210
211config ALPHA_LX164
212 bool "LX164"
213 help
214 A technical overview of this board is available at
215 <http://www.unix-ag.org/Linux-Alpha/Architectures/LX164.html>.
216
217config ALPHA_LYNX
218 bool "Lynx"
219 help
220 AlphaServer 2100A-based systems.
221
222config ALPHA_MARVEL
223 bool "Marvel"
224 help
225 AlphaServer ES47 / ES80 / GS1280 based on EV7.
226
227config ALPHA_MIATA
228 bool "Miata"
229 help
230 The Digital PersonalWorkStation (PWS 433a, 433au, 500a, 500au, 600a,
Adrian Bunkffc32d62008-10-15 22:01:19 -0700231 or 600au).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700232
233config ALPHA_MIKASA
234 bool "Mikasa"
235 help
236 AlphaServer 1000-based Alpha systems.
237
238config ALPHA_NAUTILUS
239 bool "Nautilus"
240 help
241 Alpha systems based on the AMD 751 & ALI 1543C chipsets.
242
243config ALPHA_NONAME_CH
244 bool "Noname"
245
246config ALPHA_NORITAKE
247 bool "Noritake"
248 help
249 AlphaServer 1000A, AlphaServer 600A, and AlphaServer 800-based
250 systems.
251
252config ALPHA_PC164
253 bool "PC164"
254
255config ALPHA_P2K
256 bool "Platform2000"
257
258config ALPHA_RAWHIDE
259 bool "Rawhide"
260 help
261 AlphaServer 1200, AlphaServer 4000 and AlphaServer 4100 machines.
262 See HOWTO at
263 <http://www.alphalinux.org/docs/rawhide/4100_install.shtml>.
264
265config ALPHA_RUFFIAN
266 bool "Ruffian"
267 help
268 Samsung APC164UX. There is a page on known problems and workarounds
269 at <http://www.alphalinux.org/faq/FAQ-11.html>.
270
271config ALPHA_RX164
272 bool "RX164"
273
274config ALPHA_SX164
275 bool "SX164"
276
277config ALPHA_SABLE
278 bool "Sable"
279 help
280 Digital AlphaServer 2000 and 2100-based systems.
281
282config ALPHA_SHARK
283 bool "Shark"
284
285config ALPHA_TAKARA
286 bool "Takara"
287 help
288 Alpha 11164-based OEM single-board computer.
289
290config ALPHA_TITAN
291 bool "Titan"
292 help
293 AlphaServer ES45/DS25 SMP based on EV68 and Titan chipset.
294
295config ALPHA_WILDFIRE
296 bool "Wildfire"
297 help
298 AlphaServer GS 40/80/160/320 SMP based on the EV67 core.
299
300endchoice
301
302# clear all implied options (don't want default values for those):
303# Most of these machines have ISA slots; not exactly sure which don't,
304# and this doesn't activate hordes of code, so do it always.
305config ISA
306 bool
307 default y
308 help
309 Find out whether you have ISA slots on your motherboard. ISA is the
310 name of a bus system, i.e. the way the CPU talks to the other stuff
311 inside your box. Other bus systems are PCI, EISA, MicroChannel
312 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
313 newer boards don't support it. If you have ISA, say Y, otherwise N.
314
Al Viro5cae8412005-05-04 05:39:22 +0100315config ISA_DMA_API
316 bool
317 default y
318
Linus Torvalds1da177e2005-04-16 15:20:36 -0700319config PCI
320 bool
321 depends on !ALPHA_JENSEN
Michael S. Tsirkinf2971c42011-11-24 20:48:56 +0200322 select GENERIC_PCI_IOMAP
Linus Torvalds1da177e2005-04-16 15:20:36 -0700323 default y
324 help
325 Find out whether you have a PCI motherboard. PCI is the name of a
326 bus system, i.e. the way the CPU talks to the other stuff inside
327 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
328 VESA. If you have PCI, say Y, otherwise N.
329
Linus Torvalds1da177e2005-04-16 15:20:36 -0700330config PCI_DOMAINS
331 bool
332 default y
333
Matthew Wilcox36e23592007-07-10 10:54:40 -0600334config PCI_SYSCALL
335 def_bool PCI
336
FUJITA Tomonorifd288412008-03-13 12:32:40 -0700337config IOMMU_HELPER
338 def_bool PCI
339
Linus Torvalds1da177e2005-04-16 15:20:36 -0700340config ALPHA_NONAME
341 bool
342 depends on ALPHA_BOOK1 || ALPHA_NONAME_CH
343 default y
344 help
345 The AXPpci33 (aka NoName), is based on the EB66 (includes the Multia
346 UDB). This design was produced by Digital's Technical OEM (TOEM)
347 group. It uses the 21066 processor running at 166MHz or 233MHz. It
348 is a baby-AT size, and runs from a standard PC power supply. It has
349 5 ISA slots and 3 PCI slots (one pair are a shared slot). There are
350 2 versions, with either PS/2 or large DIN connectors for the
351 keyboard.
352
353config ALPHA_EV4
354 bool
355 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
356 default y if !ALPHA_LYNX
357
358config ALPHA_LCA
359 bool
360 depends on ALPHA_NONAME || ALPHA_EB66 || ALPHA_EB66P || ALPHA_P2K
361 default y
362
363config ALPHA_APECS
364 bool
365 depends on !ALPHA_PRIMO && (ALPHA_NORITAKE || ALPHA_MIKASA) || ALPHA_CABRIOLET || ALPHA_AVANTI_CH || ALPHA_EB64P_CH || ALPHA_XL
366 default y
367
368config ALPHA_EB64P
369 bool
370 depends on ALPHA_CABRIOLET || ALPHA_EB64P_CH
371 default y
372 help
373 Uses 21064 or 21064A and APECs. Has ISA and PCI expansion (3 ISA,
374 2 PCI, one pair are on a shared slot). Supports 36-bit DRAM SIMs.
375 ISA bus generated by Intel SaturnI/O PCI-ISA bridge. On-board SCSI
376 (NCR 810 on PCI) Ethernet (Digital 21040), KBD, MOUSE (PS2 style),
377 SuperI/O (2S, 1P, FD), RTC/NVRAM. Boot ROM is EPROM. PC-AT size.
378 Runs from standard PC power supply.
379
380config ALPHA_EV5
381 bool "EV5 CPU(s) (model 5/xxx)?" if ALPHA_LYNX
382 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
383
384config ALPHA_EV4
385 bool
386 default y if ALPHA_LYNX && !ALPHA_EV5
387
388config ALPHA_CIA
389 bool
390 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
391 default y
392
393config ALPHA_EV56
394 bool "EV56 CPU (speed >= 366MHz)?" if ALPHA_ALCOR
395 default y if ALPHA_RX164 || ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN || ALPHA_PC164 || ALPHA_TAKARA
396
397config ALPHA_EV56
398 prompt "EV56 CPU (speed >= 333MHz)?"
Fernando J. Pereda060ec3d2006-09-25 23:32:37 -0700399 depends on ALPHA_NORITAKE || ALPHA_PRIMO
Linus Torvalds1da177e2005-04-16 15:20:36 -0700400
401config ALPHA_EV56
402 prompt "EV56 CPU (speed >= 400MHz)?"
403 depends on ALPHA_RAWHIDE
404
405config ALPHA_PRIMO
406 bool "EV5 CPU daughtercard (model 5/xxx)?"
407 depends on ALPHA_NORITAKE || ALPHA_MIKASA
408 help
409 Say Y if you have an AS 1000 5/xxx or an AS 1000A 5/xxx.
410
411config ALPHA_GAMMA
412 bool "EV5 CPU(s) (model 5/xxx)?"
413 depends on ALPHA_SABLE
414 help
415 Say Y if you have an AS 2000 5/xxx or an AS 2100 5/xxx.
416
417config ALPHA_GAMMA
418 bool
419 depends on ALPHA_LYNX
420 default y
421
422config ALPHA_T2
423 bool
424 depends on ALPHA_SABLE || ALPHA_LYNX
425 default y
426
427config ALPHA_PYXIS
428 bool
429 depends on ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN
430 default y
431
432config ALPHA_EV6
433 bool
434 depends on ALPHA_NAUTILUS || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_DP264 || ALPHA_EIGER || ALPHA_MARVEL
435 default y
436
437config ALPHA_TSUNAMI
438 bool
439 depends on ALPHA_SHARK || ALPHA_DP264 || ALPHA_EIGER
440 default y
441
442config ALPHA_EV67
443 bool "EV67 (or later) CPU (speed > 600MHz)?" if ALPHA_DP264 || ALPHA_EIGER
444 default y if ALPHA_NAUTILUS || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_MARVEL
445 help
446 Is this a machine based on the EV67 core? If in doubt, select N here
447 and the machine will be treated as an EV6.
448
Linus Torvalds1da177e2005-04-16 15:20:36 -0700449config ALPHA_MCPCIA
450 bool
451 depends on ALPHA_RAWHIDE
452 default y
453
454config ALPHA_POLARIS
455 bool
456 depends on ALPHA_RX164
457 default y
458
459config ALPHA_IRONGATE
460 bool
461 depends on ALPHA_NAUTILUS
462 default y
463
Akinobu Mitaf7c29672006-03-26 01:39:18 -0800464config GENERIC_HWEIGHT
465 bool
Randy Dunlap5e625b02006-06-12 15:13:40 -0700466 default y if !ALPHA_EV67
Akinobu Mitaf7c29672006-03-26 01:39:18 -0800467
Linus Torvalds1da177e2005-04-16 15:20:36 -0700468config ALPHA_AVANTI
469 bool
470 depends on ALPHA_XL || ALPHA_AVANTI_CH
471 default y
472 help
473 Avanti AS 200, AS 205, AS 250, AS 255, AS 300, and AS 400-based
474 Alphas. Info at
475 <http://www.unix-ag.org/Linux-Alpha/Architectures/Avanti.html>.
476
477config ALPHA_BROKEN_IRQ_MASK
478 bool
479 depends on ALPHA_GENERIC || ALPHA_PC164
480 default y
481
Jay Estabrook025a2212007-06-01 00:47:03 -0700482config VGA_HOSE
483 bool
Matt Turnerdd7f1fe2012-05-01 21:28:59 -0400484 depends on VGA_CONSOLE && (ALPHA_GENERIC || ALPHA_TITAN || ALPHA_MARVEL || ALPHA_TSUNAMI)
Jay Estabrook025a2212007-06-01 00:47:03 -0700485 default y
486 help
487 Support VGA on an arbitrary hose; needed for several platforms
488 which always have multiple hoses, and whose consoles support it.
489
490
Richard Henderson994dcf72011-04-28 07:29:27 -0700491config ALPHA_QEMU
492 bool "Run under QEMU emulation"
493 depends on !ALPHA_GENERIC
494 ---help---
495 Assume the presence of special features supported by QEMU PALcode
496 that reduce the overhead of system emulation.
497
498 Generic kernels will auto-detect QEMU. But when building a
499 system-specific kernel, the assumption is that we want to
500 elimiate as many runtime tests as possible.
501
502 If unsure, say N.
503
504
Linus Torvalds1da177e2005-04-16 15:20:36 -0700505config ALPHA_SRM
506 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
Joe Millenbach4f73bc42013-01-17 22:44:22 -0800507 depends on TTY
Linus Torvalds1da177e2005-04-16 15:20:36 -0700508 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
509 ---help---
510 There are two different types of booting firmware on Alphas: SRM,
511 which is command line driven, and ARC, which uses menus and arrow
512 keys. Details about the Linux/Alpha booting process are contained in
513 the Linux/Alpha FAQ, accessible on the WWW from
514 <http://www.alphalinux.org/>.
515
516 The usual way to load Linux on an Alpha machine is to use MILO
517 (a bootloader that lets you pass command line parameters to the
518 kernel just like lilo does for the x86 architecture) which can be
519 loaded either from ARC or can be installed directly as a permanent
520 firmware replacement from floppy (which requires changing a certain
521 jumper on the motherboard). If you want to do either of these, say N
522 here. If MILO doesn't work on your system (true for Jensen
523 motherboards), you can bypass it altogether and boot Linux directly
524 from an SRM console; say Y here in order to do that. Note that you
525 won't be able to boot from an IDE disk using SRM.
526
527 If unsure, say N.
528
529config EISA
530 bool
531 depends on ALPHA_GENERIC || ALPHA_JENSEN || ALPHA_ALCOR || ALPHA_MIKASA || ALPHA_SABLE || ALPHA_LYNX || ALPHA_NORITAKE || ALPHA_RAWHIDE
532 default y
533
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100534config ARCH_MAY_HAVE_PC_FDC
535 def_bool y
536
Linus Torvalds1da177e2005-04-16 15:20:36 -0700537config SMP
538 bool "Symmetric multi-processing support"
539 depends on ALPHA_SABLE || ALPHA_LYNX || ALPHA_RAWHIDE || ALPHA_DP264 || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_GENERIC || ALPHA_SHARK || ALPHA_MARVEL
540 ---help---
541 This enables support for systems with more than one CPU. If you have
Robert Graffham4a474152014-01-23 15:55:29 -0800542 a system with only one CPU, say N. If you have a system with more
543 than one CPU, say Y.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700544
Robert Graffham4a474152014-01-23 15:55:29 -0800545 If you say N here, the kernel will run on uni- and multiprocessor
Linus Torvalds1da177e2005-04-16 15:20:36 -0700546 machines, but will use only one CPU of a multiprocessor machine. If
547 you say Y here, the kernel will run on many, but not all,
Robert Graffham4a474152014-01-23 15:55:29 -0800548 uniprocessor machines. On a uniprocessor machine, the kernel
Linus Torvalds1da177e2005-04-16 15:20:36 -0700549 will run faster if you say N here.
550
Adrian Bunk03502fa2008-02-03 15:50:21 +0200551 See also the SMP-HOWTO available at
552 <http://www.tldp.org/docs.html#howto>.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700553
554 If you don't know what to do here, say N.
555
556config HAVE_DEC_LOCK
557 bool
558 depends on SMP
559 default y
560
561config NR_CPUS
Jay Estabrookd7083172007-06-01 00:47:05 -0700562 int "Maximum number of CPUs (2-32)"
563 range 2 32
Linus Torvalds1da177e2005-04-16 15:20:36 -0700564 depends on SMP
Jay Estabrookd7083172007-06-01 00:47:05 -0700565 default "32" if ALPHA_GENERIC || ALPHA_MARVEL
566 default "4" if !ALPHA_GENERIC && !ALPHA_MARVEL
567 help
568 MARVEL support can handle a maximum of 32 CPUs, all the others
569 with working support have a maximum of 4 CPUs.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700570
Dave Hansen3f22ab22005-06-23 00:07:43 -0700571config ARCH_DISCONTIGMEM_ENABLE
Kees Cook88d11bb2012-10-02 11:16:25 -0700572 bool "Discontiguous Memory Support"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700573 help
Matt LaPlantefc31e832006-10-03 22:23:47 +0200574 Say Y to support efficient handling of discontiguous physical memory,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700575 for architectures which are either NUMA (Non-Uniform Memory Access)
576 or have huge holes in the physical address space for other reasons.
577 See <file:Documentation/vm/numa> for more.
578
Dave Hansen3f22ab22005-06-23 00:07:43 -0700579source "mm/Kconfig"
580
Linus Torvalds1da177e2005-04-16 15:20:36 -0700581config NUMA
582 bool "NUMA Support (EXPERIMENTAL)"
Al Viro6df7c992005-08-23 22:44:50 +0100583 depends on DISCONTIGMEM && BROKEN
Linus Torvalds1da177e2005-04-16 15:20:36 -0700584 help
585 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
586 Access). This option is for configuring high-end multiprocessor
587 server machines. If in doubt, say N.
588
Richard Henderson7f3bbb82013-07-12 09:36:21 -0700589config ALPHA_WTINT
590 bool "Use WTINT" if ALPHA_SRM || ALPHA_GENERIC
591 default y if ALPHA_QEMU
592 default n if ALPHA_EV5 || ALPHA_EV56 || (ALPHA_EV4 && !ALPHA_LCA)
593 default n if !ALPHA_SRM && !ALPHA_GENERIC
594 default y if SMP
595 ---help---
596 The Wait for Interrupt (WTINT) PALcall attempts to place the CPU
597 to sleep until the next interrupt. This may reduce the power
598 consumed, and the heat produced by the computer. However, it has
599 the side effect of making the cycle counter unreliable as a timing
600 device across the sleep.
601
602 For emulation under QEMU, definitely say Y here, as we have other
603 mechanisms for measuring time than the cycle counter.
604
605 For EV4 (but not LCA), EV5 and EV56 systems, or for systems running
606 MILO, sleep mode is not supported so you might as well say N here.
607
608 For SMP systems we cannot use the cycle counter for timing anyway,
609 so you might as well say Y here.
610
611 If unsure, say N.
612
Yasunori Gotoc80d79d2006-04-10 22:53:53 -0700613config NODES_SHIFT
614 int
615 default "7"
616 depends on NEED_MULTIPLE_NODES
617
Linus Torvalds1da177e2005-04-16 15:20:36 -0700618# LARGE_VMALLOC is racy, if you *really* need it then fix it first
619config ALPHA_LARGE_VMALLOC
620 bool
621 ---help---
622 Process creation and other aspects of virtual memory management can
623 be streamlined if we restrict the kernel to one PGD for all vmalloc
624 allocations. This equates to about 8GB.
625
626 Under normal circumstances, this is so far and above what is needed
627 as to be laughable. However, there are certain applications (such
628 as benchmark-grade in-kernel web serving) that can make use of as
629 much vmalloc space as is available.
630
631 Say N unless you know you need gobs and gobs of vmalloc space.
632
633config VERBOSE_MCHECK
634 bool "Verbose Machine Checks"
635
636config VERBOSE_MCHECK_ON
637 int "Verbose Printing Mode (0=off, 1=on, 2=all)"
638 depends on VERBOSE_MCHECK
639 default 1
640 ---help---
641 This option allows the default printing mode to be set, and then
642 possibly overridden by a boot command argument.
643
644 For example, if one wanted the option of printing verbose
645 machine checks, but wanted the default to be as if verbose
646 machine check printing was turned off, then one would choose
647 the printing mode to be 0. Then, upon reboot, one could add
648 the boot command line "verbose_mcheck=1" to get the normal
649 verbose machine check printing, or "verbose_mcheck=2" to get
650 the maximum information available.
651
652 Take the default (1) unless you want more control or more info.
653
Richard Hendersonfddd87d2013-07-12 16:15:56 -0700654choice
655 prompt "Timer interrupt frequency (HZ)?"
656 default HZ_128 if ALPHA_QEMU
657 default HZ_1200 if ALPHA_RAWHIDE
658 default HZ_1024
659 ---help---
660 The frequency at which timer interrupts occur. A high frequency
661 minimizes latency, whereas a low frequency minimizes overhead of
662 process accounting. The later effect is especially significant
663 when being run under QEMU.
664
665 Note that some Alpha hardware cannot change the interrupt frequency
666 of the timer. If unsure, say 1024 (or 1200 for Rawhide).
667
668 config HZ_32
669 bool "32 Hz"
670 config HZ_64
671 bool "64 Hz"
672 config HZ_128
673 bool "128 Hz"
674 config HZ_256
675 bool "256 Hz"
676 config HZ_1024
677 bool "1024 Hz"
678 config HZ_1200
679 bool "1200 Hz"
680endchoice
681
H. Peter Anvinbdc80782008-02-08 04:21:26 -0800682config HZ
Richard Hendersonfddd87d2013-07-12 16:15:56 -0700683 int
684 default 32 if HZ_32
685 default 64 if HZ_64
686 default 128 if HZ_128
687 default 256 if HZ_256
688 default 1200 if HZ_1200
H. Peter Anvinbdc80782008-02-08 04:21:26 -0800689 default 1024
690
Linus Torvalds1da177e2005-04-16 15:20:36 -0700691source "drivers/pci/Kconfig"
692source "drivers/eisa/Kconfig"
693
694source "drivers/pcmcia/Kconfig"
695
696config SRM_ENV
697 tristate "SRM environment through procfs"
698 depends on PROC_FS
699 ---help---
700 If you enable this option, a subdirectory inside /proc called
701 /proc/srm_environment will give you access to the all important
702 SRM environment variables (those which have a name) and also
703 to all others (by their internal number).
704
705 SRM is something like a BIOS for Alpha machines. There are some
706 other such BIOSes, like AlphaBIOS, which this driver cannot
707 support (hey, that's not SRM!).
708
709 Despite the fact that this driver doesn't work on all Alphas (but
710 only on those which have SRM as their firmware), it's save to
711 build it even if your particular machine doesn't know about SRM
712 (or if you intend to compile a generic kernel). It will simply
713 not create those subdirectory in /proc (and give you some warning,
714 of course).
715
716 This driver is also available as a module and will be called
717 srm_env then.
718
719source "fs/Kconfig.binfmt"
720
721endmenu
722
Sam Ravnborgd5950b42005-07-11 21:03:49 -0700723source "net/Kconfig"
724
Linus Torvalds1da177e2005-04-16 15:20:36 -0700725source "drivers/Kconfig"
726
727source "fs/Kconfig"
728
Linus Torvalds1da177e2005-04-16 15:20:36 -0700729source "arch/alpha/Kconfig.debug"
730
Jay Estabrook025a2212007-06-01 00:47:03 -0700731# DUMMY_CONSOLE may be defined in drivers/video/console/Kconfig
732# but we also need it if VGA_HOSE is set
733config DUMMY_CONSOLE
734 bool
735 depends on VGA_HOSE
736 default y
737
Linus Torvalds1da177e2005-04-16 15:20:36 -0700738source "security/Kconfig"
739
740source "crypto/Kconfig"
741
742source "lib/Kconfig"
743