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1config ALPHA
2 bool
3 default y
4 select ARCH_MIGHT_HAVE_PC_PARPORT
5 select ARCH_MIGHT_HAVE_PC_SERIO
6 select ARCH_USE_CMPXCHG_LOCKREF
7 select HAVE_AOUT
8 select HAVE_IDE
9 select HAVE_OPROFILE
10 select HAVE_PCSPKR_PLATFORM
11 select HAVE_PERF_EVENTS
12 select VIRT_TO_BUS
13 select GENERIC_IRQ_PROBE
14 select AUTO_IRQ_AFFINITY if SMP
15 select GENERIC_IRQ_SHOW
16 select ARCH_WANT_OPTIONAL_GPIOLIB
17 select ARCH_WANT_IPC_PARSE_VERSION
18 select ARCH_HAVE_NMI_SAFE_CMPXCHG
19 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
20 select AUDIT_ARCH
21 select GENERIC_CLOCKEVENTS
22 select GENERIC_SMP_IDLE_THREAD
23 select GENERIC_STRNCPY_FROM_USER
24 select GENERIC_STRNLEN_USER
25 select HAVE_ARCH_AUDITSYSCALL
26 select HAVE_MOD_ARCH_SPECIFIC
27 select MODULES_USE_ELF_RELA
28 select ODD_RT_SIGACTION
29 select OLD_SIGSUSPEND
30 help
31 The Alpha is a 64-bit general-purpose processor designed and
32 marketed by the Digital Equipment Corporation of blessed memory,
33 now Hewlett-Packard. The Alpha Linux project has a home page at
34 <http://www.alphalinux.org/>.
35
36config 64BIT
37 def_bool y
38
39config MMU
40 bool
41 default y
42
43config RWSEM_GENERIC_SPINLOCK
44 bool
45
46config RWSEM_XCHGADD_ALGORITHM
47 bool
48 default y
49
50config ARCH_HAS_ILOG2_U32
51 bool
52 default n
53
54config ARCH_HAS_ILOG2_U64
55 bool
56 default n
57
58config GENERIC_CALIBRATE_DELAY
59 bool
60 default y
61
62config ZONE_DMA
63 bool
64 default y
65
66config ARCH_DMA_ADDR_T_64BIT
67 def_bool y
68
69config NEED_DMA_MAP_STATE
70 def_bool y
71
72config NEED_SG_DMA_LENGTH
73 def_bool y
74
75config GENERIC_ISA_DMA
76 bool
77 default y
78
79config PGTABLE_LEVELS
80 int
81 default 3
82
83source "init/Kconfig"
84source "kernel/Kconfig.freezer"
85
86config AUDIT_ARCH
87 bool
88
89menu "System setup"
90
91choice
92 prompt "Alpha system type"
93 default ALPHA_GENERIC
94 ---help---
95 This is the system type of your hardware. A "generic" kernel will
96 run on any supported Alpha system. However, if you configure a
97 kernel for your specific system, it will be faster and smaller.
98
99 To find out what type of Alpha system you have, you may want to
100 check out the Linux/Alpha FAQ, accessible on the WWW from
101 <http://www.alphalinux.org/>. In summary:
102
103 Alcor/Alpha-XLT AS 600, AS 500, XL-300, XL-366
104 Alpha-XL XL-233, XL-266
105 AlphaBook1 Alpha laptop
106 Avanti AS 200, AS 205, AS 250, AS 255, AS 300, AS 400
107 Cabriolet AlphaPC64, AlphaPCI64
108 DP264 DP264 / DS20 / ES40 / DS10 / DS10L
109 EB164 EB164 21164 evaluation board
110 EB64+ EB64+ 21064 evaluation board
111 EB66 EB66 21066 evaluation board
112 EB66+ EB66+ 21066 evaluation board
113 Jensen DECpc 150, DEC 2000 models 300, 500
114 LX164 AlphaPC164-LX
115 Lynx AS 2100A
116 Miata Personal Workstation 433/500/600 a/au
117 Marvel AlphaServer ES47 / ES80 / GS1280
118 Mikasa AS 1000
119 Noname AXPpci33, UDB (Multia)
120 Noritake AS 1000A, AS 600A, AS 800
121 PC164 AlphaPC164
122 Rawhide AS 1200, AS 4000, AS 4100
123 Ruffian RPX164-2, AlphaPC164-UX, AlphaPC164-BX
124 SX164 AlphaPC164-SX
125 Sable AS 2000, AS 2100
126 Shark DS 20L
127 Takara Takara (OEM)
128 Titan AlphaServer ES45 / DS25 / DS15
129 Wildfire AlphaServer GS 40/80/160/320
130
131 If you don't know what to do, choose "generic".
132
133config ALPHA_GENERIC
134 bool "Generic"
135 depends on TTY
136 help
137 A generic kernel will run on all supported Alpha hardware.
138
139config ALPHA_ALCOR
140 bool "Alcor/Alpha-XLT"
141 help
142 For systems using the Digital ALCOR chipset: 5 chips (4, 64-bit data
143 slices (Data Switch, DSW) - 208-pin PQFP and 1 control (Control, I/O
144 Address, CIA) - a 383 pin plastic PGA). It provides a DRAM
145 controller (256-bit memory bus) and a PCI interface. It also does
146 all the work required to support an external Bcache and to maintain
147 memory coherence when a PCI device DMAs into (or out of) memory.
148
149config ALPHA_XL
150 bool "Alpha-XL"
151 help
152 XL-233 and XL-266-based Alpha systems.
153
154config ALPHA_BOOK1
155 bool "AlphaBook1"
156 help
157 Dec AlphaBook1/Burns Alpha-based laptops.
158
159config ALPHA_AVANTI_CH
160 bool "Avanti"
161
162config ALPHA_CABRIOLET
163 bool "Cabriolet"
164 help
165 Cabriolet AlphaPC64, AlphaPCI64 systems. Derived from EB64+ but now
166 baby-AT with Flash boot ROM, no on-board SCSI or Ethernet. 3 ISA
167 slots, 4 PCI slots (one pair are on a shared slot), uses plug-in
168 Bcache SIMMs. Requires power supply with 3.3V output.
169
170config ALPHA_DP264
171 bool "DP264"
172 help
173 Various 21264 systems with the tsunami core logic chipset.
174 API Networks: 264DP, UP2000(+), CS20;
175 Compaq: DS10(E,L), XP900, XP1000, DS20(E), ES40.
176
177config ALPHA_EB164
178 bool "EB164"
179 help
180 EB164 21164 evaluation board from DEC. Uses 21164 and ALCOR. Has
181 ISA and PCI expansion (3 ISA slots, 2 64-bit PCI slots (one is
182 shared with an ISA slot) and 2 32-bit PCI slots. Uses plus-in
183 Bcache SIMMs. I/O sub-system provides SuperI/O (2S, 1P, FD), KBD,
184 MOUSE (PS2 style), RTC/NVRAM. Boot ROM is Flash. PC-AT-sized
185 motherboard. Requires power supply with 3.3V output.
186
187config ALPHA_EB64P_CH
188 bool "EB64+"
189
190config ALPHA_EB66
191 bool "EB66"
192 help
193 A Digital DS group board. Uses 21066 or 21066A. I/O sub-system is
194 identical to EB64+. Baby PC-AT size. Runs from standard PC power
195 supply. The EB66 schematic was published as a marketing poster
196 advertising the 21066 as "the first microprocessor in the world with
197 embedded PCI".
198
199config ALPHA_EB66P
200 bool "EB66+"
201 help
202 Later variant of the EB66 board.
203
204config ALPHA_EIGER
205 bool "Eiger"
206 help
207 Apparently an obscure OEM single-board computer based on the
208 Typhoon/Tsunami chipset family. Information on it is scanty.
209
210config ALPHA_JENSEN
211 bool "Jensen"
212 help
213 DEC PC 150 AXP (aka Jensen): This is a very old Digital system - one
214 of the first-generation Alpha systems. A number of these systems
215 seem to be available on the second- hand market. The Jensen is a
216 floor-standing tower system which originally used a 150MHz 21064 It
217 used programmable logic to interface a 486 EISA I/O bridge to the
218 CPU.
219
220config ALPHA_LX164
221 bool "LX164"
222 help
223 A technical overview of this board is available at
224 <http://www.unix-ag.org/Linux-Alpha/Architectures/LX164.html>.
225
226config ALPHA_LYNX
227 bool "Lynx"
228 help
229 AlphaServer 2100A-based systems.
230
231config ALPHA_MARVEL
232 bool "Marvel"
233 help
234 AlphaServer ES47 / ES80 / GS1280 based on EV7.
235
236config ALPHA_MIATA
237 bool "Miata"
238 help
239 The Digital PersonalWorkStation (PWS 433a, 433au, 500a, 500au, 600a,
240 or 600au).
241
242config ALPHA_MIKASA
243 bool "Mikasa"
244 help
245 AlphaServer 1000-based Alpha systems.
246
247config ALPHA_NAUTILUS
248 bool "Nautilus"
249 help
250 Alpha systems based on the AMD 751 & ALI 1543C chipsets.
251
252config ALPHA_NONAME_CH
253 bool "Noname"
254
255config ALPHA_NORITAKE
256 bool "Noritake"
257 help
258 AlphaServer 1000A, AlphaServer 600A, and AlphaServer 800-based
259 systems.
260
261config ALPHA_PC164
262 bool "PC164"
263
264config ALPHA_P2K
265 bool "Platform2000"
266
267config ALPHA_RAWHIDE
268 bool "Rawhide"
269 help
270 AlphaServer 1200, AlphaServer 4000 and AlphaServer 4100 machines.
271 See HOWTO at
272 <http://www.alphalinux.org/docs/rawhide/4100_install.shtml>.
273
274config ALPHA_RUFFIAN
275 bool "Ruffian"
276 help
277 Samsung APC164UX. There is a page on known problems and workarounds
278 at <http://www.alphalinux.org/faq/FAQ-11.html>.
279
280config ALPHA_RX164
281 bool "RX164"
282
283config ALPHA_SX164
284 bool "SX164"
285
286config ALPHA_SABLE
287 bool "Sable"
288 help
289 Digital AlphaServer 2000 and 2100-based systems.
290
291config ALPHA_SHARK
292 bool "Shark"
293
294config ALPHA_TAKARA
295 bool "Takara"
296 help
297 Alpha 11164-based OEM single-board computer.
298
299config ALPHA_TITAN
300 bool "Titan"
301 help
302 AlphaServer ES45/DS25 SMP based on EV68 and Titan chipset.
303
304config ALPHA_WILDFIRE
305 bool "Wildfire"
306 help
307 AlphaServer GS 40/80/160/320 SMP based on the EV67 core.
308
309endchoice
310
311# clear all implied options (don't want default values for those):
312# Most of these machines have ISA slots; not exactly sure which don't,
313# and this doesn't activate hordes of code, so do it always.
314config ISA
315 bool
316 default y
317 help
318 Find out whether you have ISA slots on your motherboard. ISA is the
319 name of a bus system, i.e. the way the CPU talks to the other stuff
320 inside your box. Other bus systems are PCI, EISA, MicroChannel
321 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
322 newer boards don't support it. If you have ISA, say Y, otherwise N.
323
324config ISA_DMA_API
325 bool
326 default y
327
328config PCI
329 bool
330 depends on !ALPHA_JENSEN
331 select GENERIC_PCI_IOMAP
332 default y
333 help
334 Find out whether you have a PCI motherboard. PCI is the name of a
335 bus system, i.e. the way the CPU talks to the other stuff inside
336 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
337 VESA. If you have PCI, say Y, otherwise N.
338
339config PCI_DOMAINS
340 bool
341 default y
342
343config PCI_SYSCALL
344 def_bool PCI
345
346config IOMMU_HELPER
347 def_bool PCI
348
349config ALPHA_NONAME
350 bool
351 depends on ALPHA_BOOK1 || ALPHA_NONAME_CH
352 default y
353 help
354 The AXPpci33 (aka NoName), is based on the EB66 (includes the Multia
355 UDB). This design was produced by Digital's Technical OEM (TOEM)
356 group. It uses the 21066 processor running at 166MHz or 233MHz. It
357 is a baby-AT size, and runs from a standard PC power supply. It has
358 5 ISA slots and 3 PCI slots (one pair are a shared slot). There are
359 2 versions, with either PS/2 or large DIN connectors for the
360 keyboard.
361
362config ALPHA_EV4
363 bool
364 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
365 default y if !ALPHA_LYNX
366
367config ALPHA_LCA
368 bool
369 depends on ALPHA_NONAME || ALPHA_EB66 || ALPHA_EB66P || ALPHA_P2K
370 default y
371
372config ALPHA_APECS
373 bool
374 depends on !ALPHA_PRIMO && (ALPHA_NORITAKE || ALPHA_MIKASA) || ALPHA_CABRIOLET || ALPHA_AVANTI_CH || ALPHA_EB64P_CH || ALPHA_XL
375 default y
376
377config ALPHA_EB64P
378 bool
379 depends on ALPHA_CABRIOLET || ALPHA_EB64P_CH
380 default y
381 help
382 Uses 21064 or 21064A and APECs. Has ISA and PCI expansion (3 ISA,
383 2 PCI, one pair are on a shared slot). Supports 36-bit DRAM SIMs.
384 ISA bus generated by Intel SaturnI/O PCI-ISA bridge. On-board SCSI
385 (NCR 810 on PCI) Ethernet (Digital 21040), KBD, MOUSE (PS2 style),
386 SuperI/O (2S, 1P, FD), RTC/NVRAM. Boot ROM is EPROM. PC-AT size.
387 Runs from standard PC power supply.
388
389config ALPHA_EV5
390 bool "EV5 CPU(s) (model 5/xxx)?" if ALPHA_LYNX
391 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
392
393config ALPHA_EV4
394 bool
395 default y if ALPHA_LYNX && !ALPHA_EV5
396
397config ALPHA_CIA
398 bool
399 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
400 default y
401
402config ALPHA_EV56
403 bool "EV56 CPU (speed >= 366MHz)?" if ALPHA_ALCOR
404 default y if ALPHA_RX164 || ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN || ALPHA_PC164 || ALPHA_TAKARA
405
406config ALPHA_EV56
407 prompt "EV56 CPU (speed >= 333MHz)?"
408 depends on ALPHA_NORITAKE || ALPHA_PRIMO
409
410config ALPHA_EV56
411 prompt "EV56 CPU (speed >= 400MHz)?"
412 depends on ALPHA_RAWHIDE
413
414config ALPHA_PRIMO
415 bool "EV5 CPU daughtercard (model 5/xxx)?"
416 depends on ALPHA_NORITAKE || ALPHA_MIKASA
417 help
418 Say Y if you have an AS 1000 5/xxx or an AS 1000A 5/xxx.
419
420config ALPHA_GAMMA
421 bool "EV5 CPU(s) (model 5/xxx)?"
422 depends on ALPHA_SABLE
423 help
424 Say Y if you have an AS 2000 5/xxx or an AS 2100 5/xxx.
425
426config ALPHA_GAMMA
427 bool
428 depends on ALPHA_LYNX
429 default y
430
431config ALPHA_T2
432 bool
433 depends on ALPHA_SABLE || ALPHA_LYNX
434 default y
435
436config ALPHA_PYXIS
437 bool
438 depends on ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN
439 default y
440
441config ALPHA_EV6
442 bool
443 depends on ALPHA_NAUTILUS || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_DP264 || ALPHA_EIGER || ALPHA_MARVEL
444 default y
445
446config ALPHA_TSUNAMI
447 bool
448 depends on ALPHA_SHARK || ALPHA_DP264 || ALPHA_EIGER
449 default y
450
451config ALPHA_EV67
452 bool "EV67 (or later) CPU (speed > 600MHz)?" if ALPHA_DP264 || ALPHA_EIGER
453 default y if ALPHA_NAUTILUS || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_MARVEL
454 help
455 Is this a machine based on the EV67 core? If in doubt, select N here
456 and the machine will be treated as an EV6.
457
458config ALPHA_MCPCIA
459 bool
460 depends on ALPHA_RAWHIDE
461 default y
462
463config ALPHA_POLARIS
464 bool
465 depends on ALPHA_RX164
466 default y
467
468config ALPHA_IRONGATE
469 bool
470 depends on ALPHA_NAUTILUS
471 default y
472
473config GENERIC_HWEIGHT
474 bool
475 default y if !ALPHA_EV67
476
477config ALPHA_AVANTI
478 bool
479 depends on ALPHA_XL || ALPHA_AVANTI_CH
480 default y
481 help
482 Avanti AS 200, AS 205, AS 250, AS 255, AS 300, and AS 400-based
483 Alphas. Info at
484 <http://www.unix-ag.org/Linux-Alpha/Architectures/Avanti.html>.
485
486config ALPHA_BROKEN_IRQ_MASK
487 bool
488 depends on ALPHA_GENERIC || ALPHA_PC164
489 default y
490
491config VGA_HOSE
492 bool
493 depends on VGA_CONSOLE && (ALPHA_GENERIC || ALPHA_TITAN || ALPHA_MARVEL || ALPHA_TSUNAMI)
494 default y
495 help
496 Support VGA on an arbitrary hose; needed for several platforms
497 which always have multiple hoses, and whose consoles support it.
498
499
500config ALPHA_QEMU
501 bool "Run under QEMU emulation"
502 depends on !ALPHA_GENERIC
503 ---help---
504 Assume the presence of special features supported by QEMU PALcode
505 that reduce the overhead of system emulation.
506
507 Generic kernels will auto-detect QEMU. But when building a
508 system-specific kernel, the assumption is that we want to
509 elimiate as many runtime tests as possible.
510
511 If unsure, say N.
512
513
514config ALPHA_SRM
515 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
516 depends on TTY
517 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
518 ---help---
519 There are two different types of booting firmware on Alphas: SRM,
520 which is command line driven, and ARC, which uses menus and arrow
521 keys. Details about the Linux/Alpha booting process are contained in
522 the Linux/Alpha FAQ, accessible on the WWW from
523 <http://www.alphalinux.org/>.
524
525 The usual way to load Linux on an Alpha machine is to use MILO
526 (a bootloader that lets you pass command line parameters to the
527 kernel just like lilo does for the x86 architecture) which can be
528 loaded either from ARC or can be installed directly as a permanent
529 firmware replacement from floppy (which requires changing a certain
530 jumper on the motherboard). If you want to do either of these, say N
531 here. If MILO doesn't work on your system (true for Jensen
532 motherboards), you can bypass it altogether and boot Linux directly
533 from an SRM console; say Y here in order to do that. Note that you
534 won't be able to boot from an IDE disk using SRM.
535
536 If unsure, say N.
537
538config EISA
539 bool
540 depends on ALPHA_GENERIC || ALPHA_JENSEN || ALPHA_ALCOR || ALPHA_MIKASA || ALPHA_SABLE || ALPHA_LYNX || ALPHA_NORITAKE || ALPHA_RAWHIDE
541 default y
542
543config ARCH_MAY_HAVE_PC_FDC
544 def_bool y
545
546config SMP
547 bool "Symmetric multi-processing support"
548 depends on ALPHA_SABLE || ALPHA_LYNX || ALPHA_RAWHIDE || ALPHA_DP264 || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_GENERIC || ALPHA_SHARK || ALPHA_MARVEL
549 ---help---
550 This enables support for systems with more than one CPU. If you have
551 a system with only one CPU, say N. If you have a system with more
552 than one CPU, say Y.
553
554 If you say N here, the kernel will run on uni- and multiprocessor
555 machines, but will use only one CPU of a multiprocessor machine. If
556 you say Y here, the kernel will run on many, but not all,
557 uniprocessor machines. On a uniprocessor machine, the kernel
558 will run faster if you say N here.
559
560 See also the SMP-HOWTO available at
561 <http://www.tldp.org/docs.html#howto>.
562
563 If you don't know what to do here, say N.
564
565config HAVE_DEC_LOCK
566 bool
567 depends on SMP
568 default y
569
570config NR_CPUS
571 int "Maximum number of CPUs (2-32)"
572 range 2 32
573 depends on SMP
574 default "32" if ALPHA_GENERIC || ALPHA_MARVEL
575 default "4" if !ALPHA_GENERIC && !ALPHA_MARVEL
576 help
577 MARVEL support can handle a maximum of 32 CPUs, all the others
578 with working support have a maximum of 4 CPUs.
579
580config ARCH_DISCONTIGMEM_ENABLE
581 bool "Discontiguous Memory Support"
582 help
583 Say Y to support efficient handling of discontiguous physical memory,
584 for architectures which are either NUMA (Non-Uniform Memory Access)
585 or have huge holes in the physical address space for other reasons.
586 See <file:Documentation/vm/numa> for more.
587
588source "mm/Kconfig"
589
590config NUMA
591 bool "NUMA Support (EXPERIMENTAL)"
592 depends on DISCONTIGMEM && BROKEN
593 help
594 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
595 Access). This option is for configuring high-end multiprocessor
596 server machines. If in doubt, say N.
597
598config ALPHA_WTINT
599 bool "Use WTINT" if ALPHA_SRM || ALPHA_GENERIC
600 default y if ALPHA_QEMU
601 default n if ALPHA_EV5 || ALPHA_EV56 || (ALPHA_EV4 && !ALPHA_LCA)
602 default n if !ALPHA_SRM && !ALPHA_GENERIC
603 default y if SMP
604 ---help---
605 The Wait for Interrupt (WTINT) PALcall attempts to place the CPU
606 to sleep until the next interrupt. This may reduce the power
607 consumed, and the heat produced by the computer. However, it has
608 the side effect of making the cycle counter unreliable as a timing
609 device across the sleep.
610
611 For emulation under QEMU, definitely say Y here, as we have other
612 mechanisms for measuring time than the cycle counter.
613
614 For EV4 (but not LCA), EV5 and EV56 systems, or for systems running
615 MILO, sleep mode is not supported so you might as well say N here.
616
617 For SMP systems we cannot use the cycle counter for timing anyway,
618 so you might as well say Y here.
619
620 If unsure, say N.
621
622config NODES_SHIFT
623 int
624 default "7"
625 depends on NEED_MULTIPLE_NODES
626
627# LARGE_VMALLOC is racy, if you *really* need it then fix it first
628config ALPHA_LARGE_VMALLOC
629 bool
630 ---help---
631 Process creation and other aspects of virtual memory management can
632 be streamlined if we restrict the kernel to one PGD for all vmalloc
633 allocations. This equates to about 8GB.
634
635 Under normal circumstances, this is so far and above what is needed
636 as to be laughable. However, there are certain applications (such
637 as benchmark-grade in-kernel web serving) that can make use of as
638 much vmalloc space as is available.
639
640 Say N unless you know you need gobs and gobs of vmalloc space.
641
642config VERBOSE_MCHECK
643 bool "Verbose Machine Checks"
644
645config VERBOSE_MCHECK_ON
646 int "Verbose Printing Mode (0=off, 1=on, 2=all)"
647 depends on VERBOSE_MCHECK
648 default 1
649 ---help---
650 This option allows the default printing mode to be set, and then
651 possibly overridden by a boot command argument.
652
653 For example, if one wanted the option of printing verbose
654 machine checks, but wanted the default to be as if verbose
655 machine check printing was turned off, then one would choose
656 the printing mode to be 0. Then, upon reboot, one could add
657 the boot command line "verbose_mcheck=1" to get the normal
658 verbose machine check printing, or "verbose_mcheck=2" to get
659 the maximum information available.
660
661 Take the default (1) unless you want more control or more info.
662
663choice
664 prompt "Timer interrupt frequency (HZ)?"
665 default HZ_128 if ALPHA_QEMU
666 default HZ_1200 if ALPHA_RAWHIDE
667 default HZ_1024
668 ---help---
669 The frequency at which timer interrupts occur. A high frequency
670 minimizes latency, whereas a low frequency minimizes overhead of
671 process accounting. The later effect is especially significant
672 when being run under QEMU.
673
674 Note that some Alpha hardware cannot change the interrupt frequency
675 of the timer. If unsure, say 1024 (or 1200 for Rawhide).
676
677 config HZ_32
678 bool "32 Hz"
679 config HZ_64
680 bool "64 Hz"
681 config HZ_128
682 bool "128 Hz"
683 config HZ_256
684 bool "256 Hz"
685 config HZ_1024
686 bool "1024 Hz"
687 config HZ_1200
688 bool "1200 Hz"
689endchoice
690
691config HZ
692 int
693 default 32 if HZ_32
694 default 64 if HZ_64
695 default 128 if HZ_128
696 default 256 if HZ_256
697 default 1200 if HZ_1200
698 default 1024
699
700source "drivers/pci/Kconfig"
701source "drivers/eisa/Kconfig"
702
703source "drivers/pcmcia/Kconfig"
704
705config SRM_ENV
706 tristate "SRM environment through procfs"
707 depends on PROC_FS
708 ---help---
709 If you enable this option, a subdirectory inside /proc called
710 /proc/srm_environment will give you access to the all important
711 SRM environment variables (those which have a name) and also
712 to all others (by their internal number).
713
714 SRM is something like a BIOS for Alpha machines. There are some
715 other such BIOSes, like AlphaBIOS, which this driver cannot
716 support (hey, that's not SRM!).
717
718 Despite the fact that this driver doesn't work on all Alphas (but
719 only on those which have SRM as their firmware), it's save to
720 build it even if your particular machine doesn't know about SRM
721 (or if you intend to compile a generic kernel). It will simply
722 not create those subdirectory in /proc (and give you some warning,
723 of course).
724
725 This driver is also available as a module and will be called
726 srm_env then.
727
728source "fs/Kconfig.binfmt"
729
730endmenu
731
732source "net/Kconfig"
733
734source "drivers/Kconfig"
735
736source "fs/Kconfig"
737
738source "arch/alpha/Kconfig.debug"
739
740# DUMMY_CONSOLE may be defined in drivers/video/console/Kconfig
741# but we also need it if VGA_HOSE is set
742config DUMMY_CONSOLE
743 bool
744 depends on VGA_HOSE
745 default y
746
747source "security/Kconfig"
748
749source "crypto/Kconfig"
750
751source "lib/Kconfig"
752
1config ALPHA
2 bool
3 default y
4 select HAVE_AOUT
5 select HAVE_IDE
6 select HAVE_OPROFILE
7 select HAVE_SYSCALL_WRAPPERS
8 select HAVE_IRQ_WORK
9 select HAVE_PCSPKR_PLATFORM
10 select HAVE_PERF_EVENTS
11 select HAVE_DMA_ATTRS
12 select HAVE_GENERIC_HARDIRQS
13 select GENERIC_IRQ_PROBE
14 select AUTO_IRQ_AFFINITY if SMP
15 select GENERIC_IRQ_SHOW
16 select ARCH_WANT_OPTIONAL_GPIOLIB
17 select ARCH_HAVE_NMI_SAFE_CMPXCHG
18 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
31config RWSEM_GENERIC_SPINLOCK
32 bool
33
34config RWSEM_XCHGADD_ALGORITHM
35 bool
36 default y
37
38config ARCH_HAS_ILOG2_U32
39 bool
40 default n
41
42config ARCH_HAS_ILOG2_U64
43 bool
44 default n
45
46config GENERIC_CALIBRATE_DELAY
47 bool
48 default y
49
50config GENERIC_CMOS_UPDATE
51 def_bool y
52
53config GENERIC_GPIO
54 bool
55
56config ZONE_DMA
57 bool
58 default y
59
60config ARCH_DMA_ADDR_T_64BIT
61 def_bool y
62
63config NEED_DMA_MAP_STATE
64 def_bool y
65
66config NEED_SG_DMA_LENGTH
67 def_bool y
68
69config GENERIC_ISA_DMA
70 bool
71 default y
72
73config GENERIC_IOMAP
74 bool
75 default n
76
77source "init/Kconfig"
78source "kernel/Kconfig.freezer"
79
80
81menu "System setup"
82
83choice
84 prompt "Alpha system type"
85 default ALPHA_GENERIC
86 ---help---
87 This is the system type of your hardware. A "generic" kernel will
88 run on any supported Alpha system. However, if you configure a
89 kernel for your specific system, it will be faster and smaller.
90
91 To find out what type of Alpha system you have, you may want to
92 check out the Linux/Alpha FAQ, accessible on the WWW from
93 <http://www.alphalinux.org/>. In summary:
94
95 Alcor/Alpha-XLT AS 600, AS 500, XL-300, XL-366
96 Alpha-XL XL-233, XL-266
97 AlphaBook1 Alpha laptop
98 Avanti AS 200, AS 205, AS 250, AS 255, AS 300, AS 400
99 Cabriolet AlphaPC64, AlphaPCI64
100 DP264 DP264 / DS20 / ES40 / DS10 / DS10L
101 EB164 EB164 21164 evaluation board
102 EB64+ EB64+ 21064 evaluation board
103 EB66 EB66 21066 evaluation board
104 EB66+ EB66+ 21066 evaluation board
105 Jensen DECpc 150, DEC 2000 models 300, 500
106 LX164 AlphaPC164-LX
107 Lynx AS 2100A
108 Miata Personal Workstation 433/500/600 a/au
109 Marvel AlphaServer ES47 / ES80 / GS1280
110 Mikasa AS 1000
111 Noname AXPpci33, UDB (Multia)
112 Noritake AS 1000A, AS 600A, AS 800
113 PC164 AlphaPC164
114 Rawhide AS 1200, AS 4000, AS 4100
115 Ruffian RPX164-2, AlphaPC164-UX, AlphaPC164-BX
116 SX164 AlphaPC164-SX
117 Sable AS 2000, AS 2100
118 Shark DS 20L
119 Takara Takara (OEM)
120 Titan AlphaServer ES45 / DS25 / DS15
121 Wildfire AlphaServer GS 40/80/160/320
122
123 If you don't know what to do, choose "generic".
124
125config ALPHA_GENERIC
126 bool "Generic"
127 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,
231 or 600au).
232
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
315config ISA_DMA_API
316 bool
317 default y
318
319config PCI
320 bool
321 depends on !ALPHA_JENSEN
322 default y
323 help
324 Find out whether you have a PCI motherboard. PCI is the name of a
325 bus system, i.e. the way the CPU talks to the other stuff inside
326 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
327 VESA. If you have PCI, say Y, otherwise N.
328
329config PCI_DOMAINS
330 bool
331 default y
332
333config PCI_SYSCALL
334 def_bool PCI
335
336config IOMMU_HELPER
337 def_bool PCI
338
339config ALPHA_NONAME
340 bool
341 depends on ALPHA_BOOK1 || ALPHA_NONAME_CH
342 default y
343 help
344 The AXPpci33 (aka NoName), is based on the EB66 (includes the Multia
345 UDB). This design was produced by Digital's Technical OEM (TOEM)
346 group. It uses the 21066 processor running at 166MHz or 233MHz. It
347 is a baby-AT size, and runs from a standard PC power supply. It has
348 5 ISA slots and 3 PCI slots (one pair are a shared slot). There are
349 2 versions, with either PS/2 or large DIN connectors for the
350 keyboard.
351
352config ALPHA_EV4
353 bool
354 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
355 default y if !ALPHA_LYNX
356
357config ALPHA_LCA
358 bool
359 depends on ALPHA_NONAME || ALPHA_EB66 || ALPHA_EB66P || ALPHA_P2K
360 default y
361
362config ALPHA_APECS
363 bool
364 depends on !ALPHA_PRIMO && (ALPHA_NORITAKE || ALPHA_MIKASA) || ALPHA_CABRIOLET || ALPHA_AVANTI_CH || ALPHA_EB64P_CH || ALPHA_XL
365 default y
366
367config ALPHA_EB64P
368 bool
369 depends on ALPHA_CABRIOLET || ALPHA_EB64P_CH
370 default y
371 help
372 Uses 21064 or 21064A and APECs. Has ISA and PCI expansion (3 ISA,
373 2 PCI, one pair are on a shared slot). Supports 36-bit DRAM SIMs.
374 ISA bus generated by Intel SaturnI/O PCI-ISA bridge. On-board SCSI
375 (NCR 810 on PCI) Ethernet (Digital 21040), KBD, MOUSE (PS2 style),
376 SuperI/O (2S, 1P, FD), RTC/NVRAM. Boot ROM is EPROM. PC-AT size.
377 Runs from standard PC power supply.
378
379config ALPHA_EV5
380 bool "EV5 CPU(s) (model 5/xxx)?" if ALPHA_LYNX
381 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
382
383config ALPHA_EV4
384 bool
385 default y if ALPHA_LYNX && !ALPHA_EV5
386
387config ALPHA_CIA
388 bool
389 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
390 default y
391
392config ALPHA_EV56
393 bool "EV56 CPU (speed >= 366MHz)?" if ALPHA_ALCOR
394 default y if ALPHA_RX164 || ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN || ALPHA_PC164 || ALPHA_TAKARA
395
396config ALPHA_EV56
397 prompt "EV56 CPU (speed >= 333MHz)?"
398 depends on ALPHA_NORITAKE || ALPHA_PRIMO
399
400config ALPHA_EV56
401 prompt "EV56 CPU (speed >= 400MHz)?"
402 depends on ALPHA_RAWHIDE
403
404config ALPHA_PRIMO
405 bool "EV5 CPU daughtercard (model 5/xxx)?"
406 depends on ALPHA_NORITAKE || ALPHA_MIKASA
407 help
408 Say Y if you have an AS 1000 5/xxx or an AS 1000A 5/xxx.
409
410config ALPHA_GAMMA
411 bool "EV5 CPU(s) (model 5/xxx)?"
412 depends on ALPHA_SABLE
413 help
414 Say Y if you have an AS 2000 5/xxx or an AS 2100 5/xxx.
415
416config ALPHA_GAMMA
417 bool
418 depends on ALPHA_LYNX
419 default y
420
421config ALPHA_T2
422 bool
423 depends on ALPHA_SABLE || ALPHA_LYNX
424 default y
425
426config ALPHA_PYXIS
427 bool
428 depends on ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN
429 default y
430
431config ALPHA_EV6
432 bool
433 depends on ALPHA_NAUTILUS || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_DP264 || ALPHA_EIGER || ALPHA_MARVEL
434 default y
435
436config ALPHA_TSUNAMI
437 bool
438 depends on ALPHA_SHARK || ALPHA_DP264 || ALPHA_EIGER
439 default y
440
441config ALPHA_EV67
442 bool "EV67 (or later) CPU (speed > 600MHz)?" if ALPHA_DP264 || ALPHA_EIGER
443 default y if ALPHA_NAUTILUS || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_MARVEL
444 help
445 Is this a machine based on the EV67 core? If in doubt, select N here
446 and the machine will be treated as an EV6.
447
448config ALPHA_EV7
449 bool
450 depends on ALPHA_MARVEL
451 default y
452
453config ALPHA_MCPCIA
454 bool
455 depends on ALPHA_RAWHIDE
456 default y
457
458config ALPHA_POLARIS
459 bool
460 depends on ALPHA_RX164
461 default y
462
463config ALPHA_IRONGATE
464 bool
465 depends on ALPHA_NAUTILUS
466 default y
467
468config GENERIC_HWEIGHT
469 bool
470 default y if !ALPHA_EV67
471
472config ALPHA_AVANTI
473 bool
474 depends on ALPHA_XL || ALPHA_AVANTI_CH
475 default y
476 help
477 Avanti AS 200, AS 205, AS 250, AS 255, AS 300, and AS 400-based
478 Alphas. Info at
479 <http://www.unix-ag.org/Linux-Alpha/Architectures/Avanti.html>.
480
481config ALPHA_BROKEN_IRQ_MASK
482 bool
483 depends on ALPHA_GENERIC || ALPHA_PC164
484 default y
485
486config VGA_HOSE
487 bool
488 depends on ALPHA_GENERIC || ALPHA_TITAN || ALPHA_MARVEL || ALPHA_TSUNAMI
489 default y
490 help
491 Support VGA on an arbitrary hose; needed for several platforms
492 which always have multiple hoses, and whose consoles support it.
493
494
495config ALPHA_SRM
496 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
497 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
498 ---help---
499 There are two different types of booting firmware on Alphas: SRM,
500 which is command line driven, and ARC, which uses menus and arrow
501 keys. Details about the Linux/Alpha booting process are contained in
502 the Linux/Alpha FAQ, accessible on the WWW from
503 <http://www.alphalinux.org/>.
504
505 The usual way to load Linux on an Alpha machine is to use MILO
506 (a bootloader that lets you pass command line parameters to the
507 kernel just like lilo does for the x86 architecture) which can be
508 loaded either from ARC or can be installed directly as a permanent
509 firmware replacement from floppy (which requires changing a certain
510 jumper on the motherboard). If you want to do either of these, say N
511 here. If MILO doesn't work on your system (true for Jensen
512 motherboards), you can bypass it altogether and boot Linux directly
513 from an SRM console; say Y here in order to do that. Note that you
514 won't be able to boot from an IDE disk using SRM.
515
516 If unsure, say N.
517
518config EISA
519 bool
520 depends on ALPHA_GENERIC || ALPHA_JENSEN || ALPHA_ALCOR || ALPHA_MIKASA || ALPHA_SABLE || ALPHA_LYNX || ALPHA_NORITAKE || ALPHA_RAWHIDE
521 default y
522
523config ARCH_MAY_HAVE_PC_FDC
524 def_bool y
525
526config SMP
527 bool "Symmetric multi-processing support"
528 depends on ALPHA_SABLE || ALPHA_LYNX || ALPHA_RAWHIDE || ALPHA_DP264 || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_GENERIC || ALPHA_SHARK || ALPHA_MARVEL
529 select USE_GENERIC_SMP_HELPERS
530 ---help---
531 This enables support for systems with more than one CPU. If you have
532 a system with only one CPU, like most personal computers, say N. If
533 you have a system with more than one CPU, say Y.
534
535 If you say N here, the kernel will run on single and multiprocessor
536 machines, but will use only one CPU of a multiprocessor machine. If
537 you say Y here, the kernel will run on many, but not all,
538 singleprocessor machines. On a singleprocessor machine, the kernel
539 will run faster if you say N here.
540
541 See also the SMP-HOWTO available at
542 <http://www.tldp.org/docs.html#howto>.
543
544 If you don't know what to do here, say N.
545
546config HAVE_DEC_LOCK
547 bool
548 depends on SMP
549 default y
550
551config NR_CPUS
552 int "Maximum number of CPUs (2-32)"
553 range 2 32
554 depends on SMP
555 default "32" if ALPHA_GENERIC || ALPHA_MARVEL
556 default "4" if !ALPHA_GENERIC && !ALPHA_MARVEL
557 help
558 MARVEL support can handle a maximum of 32 CPUs, all the others
559 with working support have a maximum of 4 CPUs.
560
561config ARCH_DISCONTIGMEM_ENABLE
562 bool "Discontiguous Memory Support (EXPERIMENTAL)"
563 depends on EXPERIMENTAL
564 help
565 Say Y to support efficient handling of discontiguous physical memory,
566 for architectures which are either NUMA (Non-Uniform Memory Access)
567 or have huge holes in the physical address space for other reasons.
568 See <file:Documentation/vm/numa> for more.
569
570source "mm/Kconfig"
571
572config NUMA
573 bool "NUMA Support (EXPERIMENTAL)"
574 depends on DISCONTIGMEM && BROKEN
575 help
576 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
577 Access). This option is for configuring high-end multiprocessor
578 server machines. If in doubt, say N.
579
580config NODES_SHIFT
581 int
582 default "7"
583 depends on NEED_MULTIPLE_NODES
584
585# LARGE_VMALLOC is racy, if you *really* need it then fix it first
586config ALPHA_LARGE_VMALLOC
587 bool
588 ---help---
589 Process creation and other aspects of virtual memory management can
590 be streamlined if we restrict the kernel to one PGD for all vmalloc
591 allocations. This equates to about 8GB.
592
593 Under normal circumstances, this is so far and above what is needed
594 as to be laughable. However, there are certain applications (such
595 as benchmark-grade in-kernel web serving) that can make use of as
596 much vmalloc space as is available.
597
598 Say N unless you know you need gobs and gobs of vmalloc space.
599
600config VERBOSE_MCHECK
601 bool "Verbose Machine Checks"
602
603config VERBOSE_MCHECK_ON
604 int "Verbose Printing Mode (0=off, 1=on, 2=all)"
605 depends on VERBOSE_MCHECK
606 default 1
607 ---help---
608 This option allows the default printing mode to be set, and then
609 possibly overridden by a boot command argument.
610
611 For example, if one wanted the option of printing verbose
612 machine checks, but wanted the default to be as if verbose
613 machine check printing was turned off, then one would choose
614 the printing mode to be 0. Then, upon reboot, one could add
615 the boot command line "verbose_mcheck=1" to get the normal
616 verbose machine check printing, or "verbose_mcheck=2" to get
617 the maximum information available.
618
619 Take the default (1) unless you want more control or more info.
620
621config HZ
622 int
623 default 1200 if ALPHA_RAWHIDE
624 default 1024
625
626source "drivers/pci/Kconfig"
627source "drivers/eisa/Kconfig"
628
629source "drivers/pcmcia/Kconfig"
630
631config SRM_ENV
632 tristate "SRM environment through procfs"
633 depends on PROC_FS
634 ---help---
635 If you enable this option, a subdirectory inside /proc called
636 /proc/srm_environment will give you access to the all important
637 SRM environment variables (those which have a name) and also
638 to all others (by their internal number).
639
640 SRM is something like a BIOS for Alpha machines. There are some
641 other such BIOSes, like AlphaBIOS, which this driver cannot
642 support (hey, that's not SRM!).
643
644 Despite the fact that this driver doesn't work on all Alphas (but
645 only on those which have SRM as their firmware), it's save to
646 build it even if your particular machine doesn't know about SRM
647 (or if you intend to compile a generic kernel). It will simply
648 not create those subdirectory in /proc (and give you some warning,
649 of course).
650
651 This driver is also available as a module and will be called
652 srm_env then.
653
654source "fs/Kconfig.binfmt"
655
656endmenu
657
658source "net/Kconfig"
659
660source "drivers/Kconfig"
661
662source "fs/Kconfig"
663
664source "arch/alpha/Kconfig.debug"
665
666# DUMMY_CONSOLE may be defined in drivers/video/console/Kconfig
667# but we also need it if VGA_HOSE is set
668config DUMMY_CONSOLE
669 bool
670 depends on VGA_HOSE
671 default y
672
673source "security/Kconfig"
674
675source "crypto/Kconfig"
676
677source "lib/Kconfig"
678