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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
1# SPDX-License-Identifier: GPL-2.0
2config ALPHA
3 bool
4 default y
5 select ARCH_MIGHT_HAVE_PC_PARPORT
6 select ARCH_MIGHT_HAVE_PC_SERIO
7 select ARCH_USE_CMPXCHG_LOCKREF
8 select HAVE_AOUT
9 select HAVE_IDE
10 select HAVE_OPROFILE
11 select HAVE_PCSPKR_PLATFORM
12 select HAVE_PERF_EVENTS
13 select VIRT_TO_BUS
14 select GENERIC_IRQ_PROBE
15 select AUTO_IRQ_AFFINITY if SMP
16 select GENERIC_IRQ_SHOW
17 select ARCH_WANT_IPC_PARSE_VERSION
18 select ARCH_HAVE_NMI_SAFE_CMPXCHG
19 select AUDIT_ARCH
20 select GENERIC_CLOCKEVENTS
21 select GENERIC_CPU_VULNERABILITIES
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 select CPU_NO_EFFICIENT_FFS if !ALPHA_EV67
31 help
32 The Alpha is a 64-bit general-purpose processor designed and
33 marketed by the Digital Equipment Corporation of blessed memory,
34 now Hewlett-Packard. The Alpha Linux project has a home page at
35 <http://www.alphalinux.org/>.
36
37config 64BIT
38 def_bool y
39
40config MMU
41 bool
42 default y
43
44config RWSEM_GENERIC_SPINLOCK
45 bool
46
47config RWSEM_XCHGADD_ALGORITHM
48 bool
49 default y
50
51config ARCH_HAS_ILOG2_U32
52 bool
53 default n
54
55config ARCH_HAS_ILOG2_U64
56 bool
57 default n
58
59config GENERIC_CALIBRATE_DELAY
60 bool
61 default y
62
63config ZONE_DMA
64 bool
65 default y
66
67config ARCH_DMA_ADDR_T_64BIT
68 def_bool y
69
70config NEED_DMA_MAP_STATE
71 def_bool y
72
73config NEED_SG_DMA_LENGTH
74 def_bool y
75
76config GENERIC_ISA_DMA
77 bool
78 default y
79
80config PGTABLE_LEVELS
81 int
82 default 3
83
84source "init/Kconfig"
85source "kernel/Kconfig.freezer"
86
87config AUDIT_ARCH
88 bool
89
90menu "System setup"
91
92choice
93 prompt "Alpha system type"
94 default ALPHA_GENERIC
95 ---help---
96 This is the system type of your hardware. A "generic" kernel will
97 run on any supported Alpha system. However, if you configure a
98 kernel for your specific system, it will be faster and smaller.
99
100 To find out what type of Alpha system you have, you may want to
101 check out the Linux/Alpha FAQ, accessible on the WWW from
102 <http://www.alphalinux.org/>. In summary:
103
104 Alcor/Alpha-XLT AS 600, AS 500, XL-300, XL-366
105 Alpha-XL XL-233, XL-266
106 AlphaBook1 Alpha laptop
107 Avanti AS 200, AS 205, AS 250, AS 255, AS 300, AS 400
108 Cabriolet AlphaPC64, AlphaPCI64
109 DP264 DP264 / DS20 / ES40 / DS10 / DS10L
110 EB164 EB164 21164 evaluation board
111 EB64+ EB64+ 21064 evaluation board
112 EB66 EB66 21066 evaluation board
113 EB66+ EB66+ 21066 evaluation board
114 Jensen DECpc 150, DEC 2000 models 300, 500
115 LX164 AlphaPC164-LX
116 Lynx AS 2100A
117 Miata Personal Workstation 433/500/600 a/au
118 Marvel AlphaServer ES47 / ES80 / GS1280
119 Mikasa AS 1000
120 Noname AXPpci33, UDB (Multia)
121 Noritake AS 1000A, AS 600A, AS 800
122 PC164 AlphaPC164
123 Rawhide AS 1200, AS 4000, AS 4100
124 Ruffian RPX164-2, AlphaPC164-UX, AlphaPC164-BX
125 SX164 AlphaPC164-SX
126 Sable AS 2000, AS 2100
127 Shark DS 20L
128 Takara Takara (OEM)
129 Titan AlphaServer ES45 / DS25 / DS15
130 Wildfire AlphaServer GS 40/80/160/320
131
132 If you don't know what to do, choose "generic".
133
134config ALPHA_GENERIC
135 bool "Generic"
136 depends on TTY
137 help
138 A generic kernel will run on all supported Alpha hardware.
139
140config ALPHA_ALCOR
141 bool "Alcor/Alpha-XLT"
142 help
143 For systems using the Digital ALCOR chipset: 5 chips (4, 64-bit data
144 slices (Data Switch, DSW) - 208-pin PQFP and 1 control (Control, I/O
145 Address, CIA) - a 383 pin plastic PGA). It provides a DRAM
146 controller (256-bit memory bus) and a PCI interface. It also does
147 all the work required to support an external Bcache and to maintain
148 memory coherence when a PCI device DMAs into (or out of) memory.
149
150config ALPHA_XL
151 bool "Alpha-XL"
152 help
153 XL-233 and XL-266-based Alpha systems.
154
155config ALPHA_BOOK1
156 bool "AlphaBook1"
157 help
158 Dec AlphaBook1/Burns Alpha-based laptops.
159
160config ALPHA_AVANTI_CH
161 bool "Avanti"
162
163config ALPHA_CABRIOLET
164 bool "Cabriolet"
165 help
166 Cabriolet AlphaPC64, AlphaPCI64 systems. Derived from EB64+ but now
167 baby-AT with Flash boot ROM, no on-board SCSI or Ethernet. 3 ISA
168 slots, 4 PCI slots (one pair are on a shared slot), uses plug-in
169 Bcache SIMMs. Requires power supply with 3.3V output.
170
171config ALPHA_DP264
172 bool "DP264"
173 help
174 Various 21264 systems with the tsunami core logic chipset.
175 API Networks: 264DP, UP2000(+), CS20;
176 Compaq: DS10(E,L), XP900, XP1000, DS20(E), ES40.
177
178config ALPHA_EB164
179 bool "EB164"
180 help
181 EB164 21164 evaluation board from DEC. Uses 21164 and ALCOR. Has
182 ISA and PCI expansion (3 ISA slots, 2 64-bit PCI slots (one is
183 shared with an ISA slot) and 2 32-bit PCI slots. Uses plus-in
184 Bcache SIMMs. I/O sub-system provides SuperI/O (2S, 1P, FD), KBD,
185 MOUSE (PS2 style), RTC/NVRAM. Boot ROM is Flash. PC-AT-sized
186 motherboard. Requires power supply with 3.3V output.
187
188config ALPHA_EB64P_CH
189 bool "EB64+"
190
191config ALPHA_EB66
192 bool "EB66"
193 help
194 A Digital DS group board. Uses 21066 or 21066A. I/O sub-system is
195 identical to EB64+. Baby PC-AT size. Runs from standard PC power
196 supply. The EB66 schematic was published as a marketing poster
197 advertising the 21066 as "the first microprocessor in the world with
198 embedded PCI".
199
200config ALPHA_EB66P
201 bool "EB66+"
202 help
203 Later variant of the EB66 board.
204
205config ALPHA_EIGER
206 bool "Eiger"
207 help
208 Apparently an obscure OEM single-board computer based on the
209 Typhoon/Tsunami chipset family. Information on it is scanty.
210
211config ALPHA_JENSEN
212 bool "Jensen"
213 depends on BROKEN
214 select DMA_DIRECT_OPS
215 help
216 DEC PC 150 AXP (aka Jensen): This is a very old Digital system - one
217 of the first-generation Alpha systems. A number of these systems
218 seem to be available on the second- hand market. The Jensen is a
219 floor-standing tower system which originally used a 150MHz 21064 It
220 used programmable logic to interface a 486 EISA I/O bridge to the
221 CPU.
222
223config ALPHA_LX164
224 bool "LX164"
225 help
226 A technical overview of this board is available at
227 <http://www.unix-ag.org/Linux-Alpha/Architectures/LX164.html>.
228
229config ALPHA_LYNX
230 bool "Lynx"
231 help
232 AlphaServer 2100A-based systems.
233
234config ALPHA_MARVEL
235 bool "Marvel"
236 help
237 AlphaServer ES47 / ES80 / GS1280 based on EV7.
238
239config ALPHA_MIATA
240 bool "Miata"
241 help
242 The Digital PersonalWorkStation (PWS 433a, 433au, 500a, 500au, 600a,
243 or 600au).
244
245config ALPHA_MIKASA
246 bool "Mikasa"
247 help
248 AlphaServer 1000-based Alpha systems.
249
250config ALPHA_NAUTILUS
251 bool "Nautilus"
252 help
253 Alpha systems based on the AMD 751 & ALI 1543C chipsets.
254
255config ALPHA_NONAME_CH
256 bool "Noname"
257
258config ALPHA_NORITAKE
259 bool "Noritake"
260 help
261 AlphaServer 1000A, AlphaServer 600A, and AlphaServer 800-based
262 systems.
263
264config ALPHA_PC164
265 bool "PC164"
266
267config ALPHA_P2K
268 bool "Platform2000"
269
270config ALPHA_RAWHIDE
271 bool "Rawhide"
272 help
273 AlphaServer 1200, AlphaServer 4000 and AlphaServer 4100 machines.
274 See HOWTO at
275 <http://www.alphalinux.org/docs/rawhide/4100_install.shtml>.
276
277config ALPHA_RUFFIAN
278 bool "Ruffian"
279 help
280 Samsung APC164UX. There is a page on known problems and workarounds
281 at <http://www.alphalinux.org/faq/FAQ-11.html>.
282
283config ALPHA_RX164
284 bool "RX164"
285
286config ALPHA_SX164
287 bool "SX164"
288
289config ALPHA_SABLE
290 bool "Sable"
291 help
292 Digital AlphaServer 2000 and 2100-based systems.
293
294config ALPHA_SHARK
295 bool "Shark"
296
297config ALPHA_TAKARA
298 bool "Takara"
299 help
300 Alpha 11164-based OEM single-board computer.
301
302config ALPHA_TITAN
303 bool "Titan"
304 help
305 AlphaServer ES45/DS25 SMP based on EV68 and Titan chipset.
306
307config ALPHA_WILDFIRE
308 bool "Wildfire"
309 help
310 AlphaServer GS 40/80/160/320 SMP based on the EV67 core.
311
312endchoice
313
314# clear all implied options (don't want default values for those):
315# Most of these machines have ISA slots; not exactly sure which don't,
316# and this doesn't activate hordes of code, so do it always.
317config ISA
318 bool
319 default y
320 help
321 Find out whether you have ISA slots on your motherboard. ISA is the
322 name of a bus system, i.e. the way the CPU talks to the other stuff
323 inside your box. Other bus systems are PCI, EISA, MicroChannel
324 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
325 newer boards don't support it. If you have ISA, say Y, otherwise N.
326
327config ISA_DMA_API
328 bool
329 default y
330
331config PCI
332 bool
333 depends on !ALPHA_JENSEN
334 select GENERIC_PCI_IOMAP
335 default y
336 help
337 Find out whether you have a PCI motherboard. PCI is the name of a
338 bus system, i.e. the way the CPU talks to the other stuff inside
339 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
340 VESA. If you have PCI, say Y, otherwise N.
341
342config PCI_DOMAINS
343 bool
344 default y
345
346config PCI_SYSCALL
347 def_bool PCI
348
349config IOMMU_HELPER
350 def_bool PCI
351
352config ALPHA_NONAME
353 bool
354 depends on ALPHA_BOOK1 || ALPHA_NONAME_CH
355 default y
356 help
357 The AXPpci33 (aka NoName), is based on the EB66 (includes the Multia
358 UDB). This design was produced by Digital's Technical OEM (TOEM)
359 group. It uses the 21066 processor running at 166MHz or 233MHz. It
360 is a baby-AT size, and runs from a standard PC power supply. It has
361 5 ISA slots and 3 PCI slots (one pair are a shared slot). There are
362 2 versions, with either PS/2 or large DIN connectors for the
363 keyboard.
364
365config ALPHA_EV4
366 bool
367 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
368 default y if !ALPHA_LYNX
369
370config ALPHA_LCA
371 bool
372 depends on ALPHA_NONAME || ALPHA_EB66 || ALPHA_EB66P || ALPHA_P2K
373 default y
374
375config ALPHA_APECS
376 bool
377 depends on !ALPHA_PRIMO && (ALPHA_NORITAKE || ALPHA_MIKASA) || ALPHA_CABRIOLET || ALPHA_AVANTI_CH || ALPHA_EB64P_CH || ALPHA_XL
378 default y
379
380config ALPHA_EB64P
381 bool
382 depends on ALPHA_CABRIOLET || ALPHA_EB64P_CH
383 default y
384 help
385 Uses 21064 or 21064A and APECs. Has ISA and PCI expansion (3 ISA,
386 2 PCI, one pair are on a shared slot). Supports 36-bit DRAM SIMs.
387 ISA bus generated by Intel SaturnI/O PCI-ISA bridge. On-board SCSI
388 (NCR 810 on PCI) Ethernet (Digital 21040), KBD, MOUSE (PS2 style),
389 SuperI/O (2S, 1P, FD), RTC/NVRAM. Boot ROM is EPROM. PC-AT size.
390 Runs from standard PC power supply.
391
392config ALPHA_EV5
393 bool "EV5 CPU(s) (model 5/xxx)?" if ALPHA_LYNX
394 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
395
396config ALPHA_EV4
397 bool
398 default y if ALPHA_LYNX && !ALPHA_EV5
399
400config ALPHA_CIA
401 bool
402 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
403 default y
404
405config ALPHA_EV56
406 bool "EV56 CPU (speed >= 366MHz)?" if ALPHA_ALCOR
407 default y if ALPHA_RX164 || ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN || ALPHA_PC164 || ALPHA_TAKARA
408
409config ALPHA_EV56
410 prompt "EV56 CPU (speed >= 333MHz)?"
411 depends on ALPHA_NORITAKE || ALPHA_PRIMO
412
413config ALPHA_EV56
414 prompt "EV56 CPU (speed >= 400MHz)?"
415 depends on ALPHA_RAWHIDE
416
417config ALPHA_PRIMO
418 bool "EV5 CPU daughtercard (model 5/xxx)?"
419 depends on ALPHA_NORITAKE || ALPHA_MIKASA
420 help
421 Say Y if you have an AS 1000 5/xxx or an AS 1000A 5/xxx.
422
423config ALPHA_GAMMA
424 bool "EV5 CPU(s) (model 5/xxx)?"
425 depends on ALPHA_SABLE
426 help
427 Say Y if you have an AS 2000 5/xxx or an AS 2100 5/xxx.
428
429config ALPHA_GAMMA
430 bool
431 depends on ALPHA_LYNX
432 default y
433
434config ALPHA_T2
435 bool
436 depends on ALPHA_SABLE || ALPHA_LYNX
437 default y
438
439config ALPHA_PYXIS
440 bool
441 depends on ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN
442 default y
443
444config ALPHA_EV6
445 bool
446 depends on ALPHA_NAUTILUS || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_DP264 || ALPHA_EIGER || ALPHA_MARVEL
447 default y
448
449config ALPHA_TSUNAMI
450 bool
451 depends on ALPHA_SHARK || ALPHA_DP264 || ALPHA_EIGER
452 default y
453
454config ALPHA_EV67
455 bool "EV67 (or later) CPU (speed > 600MHz)?" if ALPHA_DP264 || ALPHA_EIGER
456 default y if ALPHA_NAUTILUS || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_MARVEL
457 help
458 Is this a machine based on the EV67 core? If in doubt, select N here
459 and the machine will be treated as an EV6.
460
461config ALPHA_MCPCIA
462 bool
463 depends on ALPHA_RAWHIDE
464 default y
465
466config ALPHA_POLARIS
467 bool
468 depends on ALPHA_RX164
469 default y
470
471config ALPHA_IRONGATE
472 bool
473 depends on ALPHA_NAUTILUS
474 default y
475
476config GENERIC_HWEIGHT
477 bool
478 default y if !ALPHA_EV67
479
480config ALPHA_AVANTI
481 bool
482 depends on ALPHA_XL || ALPHA_AVANTI_CH
483 default y
484 help
485 Avanti AS 200, AS 205, AS 250, AS 255, AS 300, and AS 400-based
486 Alphas. Info at
487 <http://www.unix-ag.org/Linux-Alpha/Architectures/Avanti.html>.
488
489config ALPHA_BROKEN_IRQ_MASK
490 bool
491 depends on ALPHA_GENERIC || ALPHA_PC164
492 default y
493
494config VGA_HOSE
495 bool
496 depends on VGA_CONSOLE && (ALPHA_GENERIC || ALPHA_TITAN || ALPHA_MARVEL || ALPHA_TSUNAMI)
497 default y
498 help
499 Support VGA on an arbitrary hose; needed for several platforms
500 which always have multiple hoses, and whose consoles support it.
501
502
503config ALPHA_QEMU
504 bool "Run under QEMU emulation"
505 depends on !ALPHA_GENERIC
506 ---help---
507 Assume the presence of special features supported by QEMU PALcode
508 that reduce the overhead of system emulation.
509
510 Generic kernels will auto-detect QEMU. But when building a
511 system-specific kernel, the assumption is that we want to
512 eliminate as many runtime tests as possible.
513
514 If unsure, say N.
515
516
517config ALPHA_SRM
518 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
519 depends on TTY
520 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
521 ---help---
522 There are two different types of booting firmware on Alphas: SRM,
523 which is command line driven, and ARC, which uses menus and arrow
524 keys. Details about the Linux/Alpha booting process are contained in
525 the Linux/Alpha FAQ, accessible on the WWW from
526 <http://www.alphalinux.org/>.
527
528 The usual way to load Linux on an Alpha machine is to use MILO
529 (a bootloader that lets you pass command line parameters to the
530 kernel just like lilo does for the x86 architecture) which can be
531 loaded either from ARC or can be installed directly as a permanent
532 firmware replacement from floppy (which requires changing a certain
533 jumper on the motherboard). If you want to do either of these, say N
534 here. If MILO doesn't work on your system (true for Jensen
535 motherboards), you can bypass it altogether and boot Linux directly
536 from an SRM console; say Y here in order to do that. Note that you
537 won't be able to boot from an IDE disk using SRM.
538
539 If unsure, say N.
540
541config EISA
542 bool
543 depends on ALPHA_GENERIC || ALPHA_JENSEN || ALPHA_ALCOR || ALPHA_MIKASA || ALPHA_SABLE || ALPHA_LYNX || ALPHA_NORITAKE || ALPHA_RAWHIDE
544 default y
545
546config ARCH_MAY_HAVE_PC_FDC
547 def_bool y
548
549config SMP
550 bool "Symmetric multi-processing support"
551 depends on ALPHA_SABLE || ALPHA_LYNX || ALPHA_RAWHIDE || ALPHA_DP264 || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_GENERIC || ALPHA_SHARK || ALPHA_MARVEL
552 ---help---
553 This enables support for systems with more than one CPU. If you have
554 a system with only one CPU, say N. If you have a system with more
555 than one CPU, say Y.
556
557 If you say N here, the kernel will run on uni- and multiprocessor
558 machines, but will use only one CPU of a multiprocessor machine. If
559 you say Y here, the kernel will run on many, but not all,
560 uniprocessor machines. On a uniprocessor machine, the kernel
561 will run faster if you say N here.
562
563 See also the SMP-HOWTO available at
564 <http://www.tldp.org/docs.html#howto>.
565
566 If you don't know what to do here, say N.
567
568config HAVE_DEC_LOCK
569 bool
570 depends on SMP
571 default y
572
573config NR_CPUS
574 int "Maximum number of CPUs (2-32)"
575 range 2 32
576 depends on SMP
577 default "32" if ALPHA_GENERIC || ALPHA_MARVEL
578 default "4" if !ALPHA_GENERIC && !ALPHA_MARVEL
579 help
580 MARVEL support can handle a maximum of 32 CPUs, all the others
581 with working support have a maximum of 4 CPUs.
582
583config ARCH_DISCONTIGMEM_ENABLE
584 bool "Discontiguous Memory Support"
585 help
586 Say Y to support efficient handling of discontiguous physical memory,
587 for architectures which are either NUMA (Non-Uniform Memory Access)
588 or have huge holes in the physical address space for other reasons.
589 See <file:Documentation/vm/numa> for more.
590
591source "mm/Kconfig"
592
593config NUMA
594 bool "NUMA Support (EXPERIMENTAL)"
595 depends on DISCONTIGMEM && BROKEN
596 help
597 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
598 Access). This option is for configuring high-end multiprocessor
599 server machines. If in doubt, say N.
600
601config ALPHA_WTINT
602 bool "Use WTINT" if ALPHA_SRM || ALPHA_GENERIC
603 default y if ALPHA_QEMU
604 default n if ALPHA_EV5 || ALPHA_EV56 || (ALPHA_EV4 && !ALPHA_LCA)
605 default n if !ALPHA_SRM && !ALPHA_GENERIC
606 default y if SMP
607 ---help---
608 The Wait for Interrupt (WTINT) PALcall attempts to place the CPU
609 to sleep until the next interrupt. This may reduce the power
610 consumed, and the heat produced by the computer. However, it has
611 the side effect of making the cycle counter unreliable as a timing
612 device across the sleep.
613
614 For emulation under QEMU, definitely say Y here, as we have other
615 mechanisms for measuring time than the cycle counter.
616
617 For EV4 (but not LCA), EV5 and EV56 systems, or for systems running
618 MILO, sleep mode is not supported so you might as well say N here.
619
620 For SMP systems we cannot use the cycle counter for timing anyway,
621 so you might as well say Y here.
622
623 If unsure, say N.
624
625config NODES_SHIFT
626 int
627 default "7"
628 depends on NEED_MULTIPLE_NODES
629
630# LARGE_VMALLOC is racy, if you *really* need it then fix it first
631config ALPHA_LARGE_VMALLOC
632 bool
633 ---help---
634 Process creation and other aspects of virtual memory management can
635 be streamlined if we restrict the kernel to one PGD for all vmalloc
636 allocations. This equates to about 8GB.
637
638 Under normal circumstances, this is so far and above what is needed
639 as to be laughable. However, there are certain applications (such
640 as benchmark-grade in-kernel web serving) that can make use of as
641 much vmalloc space as is available.
642
643 Say N unless you know you need gobs and gobs of vmalloc space.
644
645config VERBOSE_MCHECK
646 bool "Verbose Machine Checks"
647
648config VERBOSE_MCHECK_ON
649 int "Verbose Printing Mode (0=off, 1=on, 2=all)"
650 depends on VERBOSE_MCHECK
651 default 1
652 ---help---
653 This option allows the default printing mode to be set, and then
654 possibly overridden by a boot command argument.
655
656 For example, if one wanted the option of printing verbose
657 machine checks, but wanted the default to be as if verbose
658 machine check printing was turned off, then one would choose
659 the printing mode to be 0. Then, upon reboot, one could add
660 the boot command line "verbose_mcheck=1" to get the normal
661 verbose machine check printing, or "verbose_mcheck=2" to get
662 the maximum information available.
663
664 Take the default (1) unless you want more control or more info.
665
666choice
667 prompt "Timer interrupt frequency (HZ)?"
668 default HZ_128 if ALPHA_QEMU
669 default HZ_1200 if ALPHA_RAWHIDE
670 default HZ_1024
671 ---help---
672 The frequency at which timer interrupts occur. A high frequency
673 minimizes latency, whereas a low frequency minimizes overhead of
674 process accounting. The later effect is especially significant
675 when being run under QEMU.
676
677 Note that some Alpha hardware cannot change the interrupt frequency
678 of the timer. If unsure, say 1024 (or 1200 for Rawhide).
679
680 config HZ_32
681 bool "32 Hz"
682 config HZ_64
683 bool "64 Hz"
684 config HZ_128
685 bool "128 Hz"
686 config HZ_256
687 bool "256 Hz"
688 config HZ_1024
689 bool "1024 Hz"
690 config HZ_1200
691 bool "1200 Hz"
692endchoice
693
694config HZ
695 int
696 default 32 if HZ_32
697 default 64 if HZ_64
698 default 128 if HZ_128
699 default 256 if HZ_256
700 default 1200 if HZ_1200
701 default 1024
702
703source "drivers/pci/Kconfig"
704source "drivers/eisa/Kconfig"
705
706source "drivers/pcmcia/Kconfig"
707
708config SRM_ENV
709 tristate "SRM environment through procfs"
710 depends on PROC_FS
711 ---help---
712 If you enable this option, a subdirectory inside /proc called
713 /proc/srm_environment will give you access to the all important
714 SRM environment variables (those which have a name) and also
715 to all others (by their internal number).
716
717 SRM is something like a BIOS for Alpha machines. There are some
718 other such BIOSes, like AlphaBIOS, which this driver cannot
719 support (hey, that's not SRM!).
720
721 Despite the fact that this driver doesn't work on all Alphas (but
722 only on those which have SRM as their firmware), it's save to
723 build it even if your particular machine doesn't know about SRM
724 (or if you intend to compile a generic kernel). It will simply
725 not create those subdirectory in /proc (and give you some warning,
726 of course).
727
728 This driver is also available as a module and will be called
729 srm_env then.
730
731source "fs/Kconfig.binfmt"
732
733endmenu
734
735source "net/Kconfig"
736
737source "drivers/Kconfig"
738
739source "fs/Kconfig"
740
741source "arch/alpha/Kconfig.debug"
742
743# DUMMY_CONSOLE may be defined in drivers/video/console/Kconfig
744# but we also need it if VGA_HOSE is set
745config DUMMY_CONSOLE
746 bool
747 depends on VGA_HOSE
748 default y
749
750source "security/Kconfig"
751
752source "crypto/Kconfig"
753
754source "lib/Kconfig"
755