xref: /openbmc/linux/arch/alpha/Kconfig (revision da2014a2)
1#
2# For a description of the syntax of this configuration file,
3# see Documentation/kbuild/kconfig-language.txt.
4#
5config ALPHA
6	bool
7	default y
8	select HAVE_IDE
9	select HAVE_OPROFILE
10	help
11	  The Alpha is a 64-bit general-purpose processor designed and
12	  marketed by the Digital Equipment Corporation of blessed memory,
13	  now Hewlett-Packard.  The Alpha Linux project has a home page at
14	  <http://www.alphalinux.org/>.
15
16config 64BIT
17	def_bool y
18
19config MMU
20	bool
21	default y
22
23config RWSEM_GENERIC_SPINLOCK
24	bool
25
26config RWSEM_XCHGADD_ALGORITHM
27	bool
28	default y
29
30config ARCH_HAS_ILOG2_U32
31	bool
32	default n
33
34config ARCH_HAS_ILOG2_U64
35	bool
36	default n
37
38config GENERIC_FIND_NEXT_BIT
39	bool
40	default y
41
42config GENERIC_CALIBRATE_DELAY
43	bool
44	default y
45
46config ZONE_DMA
47	bool
48	default y
49
50config GENERIC_ISA_DMA
51	bool
52	default y
53
54config GENERIC_IOMAP
55	bool
56	default n
57
58config GENERIC_HARDIRQS
59	bool
60	default y
61
62config GENERIC_IRQ_PROBE
63	bool
64	default y
65
66config AUTO_IRQ_AFFINITY
67	bool
68	depends on SMP
69	default y
70
71config ARCH_SUPPORTS_AOUT
72	def_bool y
73
74source "init/Kconfig"
75
76
77menu "System setup"
78
79choice
80	prompt "Alpha system type"
81	default ALPHA_GENERIC
82	---help---
83	  This is the system type of your hardware.  A "generic" kernel will
84	  run on any supported Alpha system. However, if you configure a
85	  kernel for your specific system, it will be faster and smaller.
86
87	  To find out what type of Alpha system you have, you may want to
88	  check out the Linux/Alpha FAQ, accessible on the WWW from
89	  <http://www.alphalinux.org/>. In summary:
90
91	  Alcor/Alpha-XLT     AS 600, AS 500, XL-300, XL-366
92	  Alpha-XL            XL-233, XL-266
93	  AlphaBook1          Alpha laptop
94	  Avanti              AS 200, AS 205, AS 250, AS 255, AS 300, AS 400
95	  Cabriolet           AlphaPC64, AlphaPCI64
96	  DP264               DP264 / DS20 / ES40 / DS10 / DS10L
97	  EB164               EB164 21164 evaluation board
98	  EB64+               EB64+ 21064 evaluation board
99	  EB66                EB66 21066 evaluation board
100	  EB66+               EB66+ 21066 evaluation board
101	  Jensen              DECpc 150, DEC 2000 models 300, 500
102	  LX164               AlphaPC164-LX
103	  Lynx                AS 2100A
104	  Miata               Personal Workstation 433/500/600 a/au
105	  Marvel              AlphaServer ES47 / ES80 / GS1280
106	  Mikasa              AS 1000
107	  Noname              AXPpci33, UDB (Multia)
108	  Noritake            AS 1000A, AS 600A, AS 800
109	  PC164               AlphaPC164
110	  Rawhide             AS 1200, AS 4000, AS 4100
111	  Ruffian             RPX164-2, AlphaPC164-UX, AlphaPC164-BX
112	  SX164               AlphaPC164-SX
113	  Sable               AS 2000, AS 2100
114	  Shark               DS 20L
115	  Takara              Takara (OEM)
116	  Titan               AlphaServer ES45 / DS25 / DS15
117	  Wildfire            AlphaServer GS 40/80/160/320
118
119	  If you don't know what to do, choose "generic".
120
121config ALPHA_GENERIC
122	bool "Generic"
123	help
124	  A generic kernel will run on all supported Alpha hardware.
125
126config ALPHA_ALCOR
127	bool "Alcor/Alpha-XLT"
128	help
129	  For systems using the Digital ALCOR chipset: 5 chips (4, 64-bit data
130	  slices (Data Switch, DSW) - 208-pin PQFP and 1 control (Control, I/O
131	  Address, CIA) - a 383 pin plastic PGA).  It provides a DRAM
132	  controller (256-bit memory bus) and a PCI interface.  It also does
133	  all the work required to support an external Bcache and to maintain
134	  memory coherence when a PCI device DMAs into (or out of) memory.
135
136config ALPHA_XL
137	bool "Alpha-XL"
138	help
139	  XL-233 and XL-266-based Alpha systems.
140
141config ALPHA_BOOK1
142	bool "AlphaBook1"
143	help
144	  Dec AlphaBook1/Burns Alpha-based laptops.
145
146config ALPHA_AVANTI_CH
147	bool "Avanti"
148
149config ALPHA_CABRIOLET
150	bool "Cabriolet"
151	help
152	  Cabriolet AlphaPC64, AlphaPCI64 systems.  Derived from EB64+ but now
153	  baby-AT with Flash boot ROM, no on-board SCSI or Ethernet. 3 ISA
154	  slots, 4 PCI slots (one pair are on a shared slot), uses plug-in
155	  Bcache SIMMs.  Requires power supply with 3.3V output.
156
157config ALPHA_DP264
158	bool "DP264"
159	help
160	  Various 21264 systems with the tsunami core logic chipset.
161	  API Networks: 264DP, UP2000(+), CS20;
162	  Compaq: DS10(E,L), XP900, XP1000, DS20(E), ES40.
163
164config ALPHA_EB164
165	bool "EB164"
166	help
167	  EB164 21164 evaluation board from DEC.  Uses 21164 and ALCOR.  Has
168	  ISA and PCI expansion (3 ISA slots, 2 64-bit PCI slots (one is
169	  shared with an ISA slot) and 2 32-bit PCI slots.  Uses plus-in
170	  Bcache SIMMs. I/O sub-system provides SuperI/O (2S, 1P, FD), KBD,
171	  MOUSE (PS2 style), RTC/NVRAM.  Boot ROM is Flash.  PC-AT-sized
172	  motherboard.  Requires power supply with 3.3V output.
173
174config ALPHA_EB64P_CH
175	bool "EB64+"
176
177config ALPHA_EB66
178	bool "EB66"
179	help
180	  A Digital DS group board.  Uses 21066 or 21066A.  I/O sub-system is
181	  identical to EB64+.  Baby PC-AT size.  Runs from standard PC power
182	  supply.  The EB66 schematic was published as a marketing poster
183	  advertising the 21066 as "the first microprocessor in the world with
184	  embedded PCI".
185
186config ALPHA_EB66P
187	bool "EB66+"
188	help
189	  Later variant of the EB66 board.
190
191config ALPHA_EIGER
192	bool "Eiger"
193	help
194	  Apparently an obscure OEM single-board computer based on the
195	  Typhoon/Tsunami chipset family. Information on it is scanty.
196
197config ALPHA_JENSEN
198	bool "Jensen"
199	help
200	  DEC PC 150 AXP (aka Jensen): This is a very old Digital system - one
201	  of the first-generation Alpha systems. A number of these systems
202	  seem to be available on the second- hand market. The Jensen is a
203	  floor-standing tower system which originally used a 150MHz 21064 It
204	  used programmable logic to interface a 486 EISA I/O bridge to the
205	  CPU.
206
207config ALPHA_LX164
208	bool "LX164"
209	help
210	  A technical overview of this board is available at
211	  <http://www.unix-ag.org/Linux-Alpha/Architectures/LX164.html>.
212
213config ALPHA_LYNX
214	bool "Lynx"
215	help
216	  AlphaServer 2100A-based systems.
217
218config ALPHA_MARVEL
219	bool "Marvel"
220	help
221	  AlphaServer ES47 / ES80 / GS1280 based on EV7.
222
223config ALPHA_MIATA
224	bool "Miata"
225	help
226	  The Digital PersonalWorkStation (PWS 433a, 433au, 500a, 500au, 600a,
227	  or 600au).  There is an Installation HOWTO for this hardware at
228	  <http://eijk.homelinux.org/~stefan/miata.html>.
229
230config ALPHA_MIKASA
231	bool "Mikasa"
232	help
233	  AlphaServer 1000-based Alpha systems.
234
235config ALPHA_NAUTILUS
236	bool "Nautilus"
237	help
238	  Alpha systems based on the AMD 751 & ALI 1543C chipsets.
239
240config ALPHA_NONAME_CH
241	bool "Noname"
242
243config ALPHA_NORITAKE
244	bool "Noritake"
245	help
246	  AlphaServer 1000A, AlphaServer 600A, and AlphaServer 800-based
247	  systems.
248
249config ALPHA_PC164
250	bool "PC164"
251
252config ALPHA_P2K
253	bool "Platform2000"
254
255config ALPHA_RAWHIDE
256	bool "Rawhide"
257	help
258	  AlphaServer 1200, AlphaServer 4000 and AlphaServer 4100 machines.
259	  See HOWTO at
260	  <http://www.alphalinux.org/docs/rawhide/4100_install.shtml>.
261
262config ALPHA_RUFFIAN
263	bool "Ruffian"
264	help
265	  Samsung APC164UX.  There is a page on known problems and workarounds
266	  at <http://www.alphalinux.org/faq/FAQ-11.html>.
267
268config ALPHA_RX164
269	bool "RX164"
270
271config ALPHA_SX164
272	bool "SX164"
273
274config ALPHA_SABLE
275	bool "Sable"
276	help
277	  Digital AlphaServer 2000 and 2100-based systems.
278
279config ALPHA_SHARK
280	bool "Shark"
281
282config ALPHA_TAKARA
283	bool "Takara"
284	help
285	  Alpha 11164-based OEM single-board computer.
286
287config ALPHA_TITAN
288	bool "Titan"
289	help
290	  AlphaServer ES45/DS25 SMP based on EV68 and Titan chipset.
291
292config ALPHA_WILDFIRE
293	bool "Wildfire"
294	help
295	  AlphaServer GS 40/80/160/320 SMP based on the EV67 core.
296
297endchoice
298
299# clear all implied options (don't want default values for those):
300# Most of these machines have ISA slots; not exactly sure which don't,
301# and this doesn't activate hordes of code, so do it always.
302config ISA
303	bool
304	default y
305	help
306	  Find out whether you have ISA slots on your motherboard.  ISA is the
307	  name of a bus system, i.e. the way the CPU talks to the other stuff
308	  inside your box.  Other bus systems are PCI, EISA, MicroChannel
309	  (MCA) or VESA.  ISA is an older system, now being displaced by PCI;
310	  newer boards don't support it.  If you have ISA, say Y, otherwise N.
311
312config ISA_DMA_API
313	bool
314	default y
315
316config PCI
317	bool
318	depends on !ALPHA_JENSEN
319	default y
320	help
321	  Find out whether you have a PCI motherboard. PCI is the name of a
322	  bus system, i.e. the way the CPU talks to the other stuff inside
323	  your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
324	  VESA. If you have PCI, say Y, otherwise N.
325
326config PCI_DOMAINS
327	bool
328	default y
329
330config PCI_SYSCALL
331	def_bool PCI
332
333config IOMMU_HELPER
334	def_bool PCI
335
336config ALPHA_NONAME
337	bool
338	depends on ALPHA_BOOK1 || ALPHA_NONAME_CH
339	default y
340	help
341	  The AXPpci33 (aka NoName), is based on the EB66 (includes the Multia
342	  UDB).  This design was produced by Digital's Technical OEM (TOEM)
343	  group. It uses the 21066 processor running at 166MHz or 233MHz. It
344	  is a baby-AT size, and runs from a standard PC power supply. It has
345	  5 ISA slots and 3 PCI slots (one pair are a shared slot). There are
346	  2 versions, with either PS/2 or large DIN connectors for the
347	  keyboard.
348
349config ALPHA_EV4
350	bool
351	depends on ALPHA_JENSEN || (ALPHA_SABLE && !ALPHA_GAMMA) || ALPHA_LYNX || ALPHA_NORITAKE && !ALPHA_PRIMO || ALPHA_MIKASA && !ALPHA_PRIMO || ALPHA_CABRIOLET || ALPHA_AVANTI_CH || ALPHA_EB64P_CH || ALPHA_XL || ALPHA_NONAME || ALPHA_EB66 || ALPHA_EB66P || ALPHA_P2K
352	default y if !ALPHA_LYNX
353
354config ALPHA_LCA
355	bool
356	depends on ALPHA_NONAME || ALPHA_EB66 || ALPHA_EB66P || ALPHA_P2K
357	default y
358
359config ALPHA_APECS
360	bool
361	depends on !ALPHA_PRIMO && (ALPHA_NORITAKE || ALPHA_MIKASA) || ALPHA_CABRIOLET || ALPHA_AVANTI_CH || ALPHA_EB64P_CH || ALPHA_XL
362	default y
363
364config ALPHA_EB64P
365	bool
366	depends on ALPHA_CABRIOLET || ALPHA_EB64P_CH
367	default y
368	help
369	  Uses 21064 or 21064A and APECs.  Has ISA and PCI expansion (3 ISA,
370	  2 PCI, one pair are on a shared slot). Supports 36-bit DRAM SIMs.
371	  ISA bus generated by Intel SaturnI/O PCI-ISA bridge. On-board SCSI
372	  (NCR 810 on PCI) Ethernet (Digital 21040), KBD, MOUSE (PS2 style),
373	  SuperI/O (2S, 1P, FD), RTC/NVRAM. Boot ROM is EPROM.  PC-AT size.
374	  Runs from standard PC power supply.
375
376config ALPHA_EV5
377	bool "EV5 CPU(s) (model 5/xxx)?" if ALPHA_LYNX
378	default y if ALPHA_RX164 || ALPHA_RAWHIDE || ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN || ALPHA_SABLE && ALPHA_GAMMA || ALPHA_NORITAKE && ALPHA_PRIMO || ALPHA_MIKASA && ALPHA_PRIMO || ALPHA_PC164 || ALPHA_TAKARA || ALPHA_EB164 || ALPHA_ALCOR
379
380config ALPHA_EV4
381	bool
382	default y if ALPHA_LYNX && !ALPHA_EV5
383
384config ALPHA_CIA
385	bool
386	depends on ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN || ALPHA_NORITAKE && ALPHA_PRIMO || ALPHA_MIKASA && ALPHA_PRIMO || ALPHA_PC164 || ALPHA_TAKARA || ALPHA_EB164 || ALPHA_ALCOR
387	default y
388
389config ALPHA_EV56
390	bool "EV56 CPU (speed >= 366MHz)?" if ALPHA_ALCOR
391	default y if ALPHA_RX164 || ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN || ALPHA_PC164 || ALPHA_TAKARA
392
393config ALPHA_EV56
394	prompt "EV56 CPU (speed >= 333MHz)?"
395	depends on ALPHA_NORITAKE || ALPHA_PRIMO
396
397config ALPHA_EV56
398	prompt "EV56 CPU (speed >= 400MHz)?"
399	depends on ALPHA_RAWHIDE
400
401config ALPHA_PRIMO
402	bool "EV5 CPU daughtercard (model 5/xxx)?"
403	depends on ALPHA_NORITAKE || ALPHA_MIKASA
404	help
405	  Say Y if you have an AS 1000 5/xxx or an AS 1000A 5/xxx.
406
407config ALPHA_GAMMA
408	bool "EV5 CPU(s) (model 5/xxx)?"
409	depends on ALPHA_SABLE
410	help
411	  Say Y if you have an AS 2000 5/xxx or an AS 2100 5/xxx.
412
413config ALPHA_GAMMA
414	bool
415	depends on ALPHA_LYNX
416	default y
417
418config ALPHA_T2
419	bool
420	depends on ALPHA_SABLE || ALPHA_LYNX
421	default y
422
423config ALPHA_PYXIS
424	bool
425	depends on ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN
426	default y
427
428config ALPHA_EV6
429	bool
430	depends on ALPHA_NAUTILUS || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_DP264 || ALPHA_EIGER || ALPHA_MARVEL
431	default y
432
433config ALPHA_TSUNAMI
434	bool
435	depends on ALPHA_SHARK || ALPHA_DP264 || ALPHA_EIGER
436	default y
437
438config ALPHA_EV67
439	bool "EV67 (or later) CPU (speed > 600MHz)?" if ALPHA_DP264 || ALPHA_EIGER
440	default y if ALPHA_NAUTILUS || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_MARVEL
441	help
442	  Is this a machine based on the EV67 core?  If in doubt, select N here
443	  and the machine will be treated as an EV6.
444
445config ALPHA_EV7
446	bool
447	depends on ALPHA_MARVEL
448	default y
449
450config ALPHA_MCPCIA
451	bool
452	depends on ALPHA_RAWHIDE
453	default y
454
455config ALPHA_POLARIS
456	bool
457	depends on ALPHA_RX164
458	default y
459
460config ALPHA_IRONGATE
461	bool
462	depends on ALPHA_NAUTILUS
463	default y
464
465config GENERIC_HWEIGHT
466	bool
467	default y if !ALPHA_EV67
468
469config ALPHA_AVANTI
470	bool
471	depends on ALPHA_XL || ALPHA_AVANTI_CH
472	default y
473	help
474	  Avanti AS 200, AS 205, AS 250, AS 255, AS 300, and AS 400-based
475	  Alphas. Info at
476	  <http://www.unix-ag.org/Linux-Alpha/Architectures/Avanti.html>.
477
478config ALPHA_BROKEN_IRQ_MASK
479	bool
480	depends on ALPHA_GENERIC || ALPHA_PC164
481	default y
482
483config VGA_HOSE
484	bool
485	depends on ALPHA_GENERIC || ALPHA_TITAN || ALPHA_MARVEL || ALPHA_TSUNAMI
486	default y
487	help
488	  Support VGA on an arbitrary hose; needed for several platforms
489	  which always have multiple hoses, and whose consoles support it.
490
491
492config ALPHA_SRM
493	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
494	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
495	---help---
496	  There are two different types of booting firmware on Alphas: SRM,
497	  which is command line driven, and ARC, which uses menus and arrow
498	  keys. Details about the Linux/Alpha booting process are contained in
499	  the Linux/Alpha FAQ, accessible on the WWW from
500	  <http://www.alphalinux.org/>.
501
502	  The usual way to load Linux on an Alpha machine is to use MILO
503	  (a bootloader that lets you pass command line parameters to the
504	  kernel just like lilo does for the x86 architecture) which can be
505	  loaded either from ARC or can be installed directly as a permanent
506	  firmware replacement from floppy (which requires changing a certain
507	  jumper on the motherboard). If you want to do either of these, say N
508	  here. If MILO doesn't work on your system (true for Jensen
509	  motherboards), you can bypass it altogether and boot Linux directly
510	  from an SRM console; say Y here in order to do that. Note that you
511	  won't be able to boot from an IDE disk using SRM.
512
513	  If unsure, say N.
514
515config EISA
516	bool
517	depends on ALPHA_GENERIC || ALPHA_JENSEN || ALPHA_ALCOR || ALPHA_MIKASA || ALPHA_SABLE || ALPHA_LYNX || ALPHA_NORITAKE || ALPHA_RAWHIDE
518	default y
519
520config ARCH_MAY_HAVE_PC_FDC
521	def_bool y
522
523config SMP
524	bool "Symmetric multi-processing support"
525	depends on ALPHA_SABLE || ALPHA_LYNX || ALPHA_RAWHIDE || ALPHA_DP264 || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_GENERIC || ALPHA_SHARK || ALPHA_MARVEL
526	select USE_GENERIC_SMP_HELPERS
527	---help---
528	  This enables support for systems with more than one CPU. If you have
529	  a system with only one CPU, like most personal computers, say N. If
530	  you have a system with more than one CPU, say Y.
531
532	  If you say N here, the kernel will run on single and multiprocessor
533	  machines, but will use only one CPU of a multiprocessor machine. If
534	  you say Y here, the kernel will run on many, but not all,
535	  singleprocessor machines. On a singleprocessor machine, the kernel
536	  will run faster if you say N here.
537
538	  See also the SMP-HOWTO available at
539	  <http://www.tldp.org/docs.html#howto>.
540
541	  If you don't know what to do here, say N.
542
543config HAVE_DEC_LOCK
544	bool
545	depends on SMP
546	default y
547
548config NR_CPUS
549	int "Maximum number of CPUs (2-32)"
550	range 2 32
551	depends on SMP
552	default "32" if ALPHA_GENERIC || ALPHA_MARVEL
553	default "4" if !ALPHA_GENERIC && !ALPHA_MARVEL
554	help
555	  MARVEL support can handle a maximum of 32 CPUs, all the others
556          with working support have a maximum of 4 CPUs.
557
558config ARCH_DISCONTIGMEM_ENABLE
559	bool "Discontiguous Memory Support (EXPERIMENTAL)"
560	depends on EXPERIMENTAL
561	help
562	  Say Y to support efficient handling of discontiguous physical memory,
563	  for architectures which are either NUMA (Non-Uniform Memory Access)
564	  or have huge holes in the physical address space for other reasons.
565	  See <file:Documentation/vm/numa> for more.
566
567source "mm/Kconfig"
568
569config NUMA
570	bool "NUMA Support (EXPERIMENTAL)"
571	depends on DISCONTIGMEM && BROKEN
572	help
573	  Say Y to compile the kernel to support NUMA (Non-Uniform Memory
574	  Access).  This option is for configuring high-end multiprocessor
575	  server machines.  If in doubt, say N.
576
577config NODES_SHIFT
578	int
579	default "7"
580	depends on NEED_MULTIPLE_NODES
581
582# LARGE_VMALLOC is racy, if you *really* need it then fix it first
583config ALPHA_LARGE_VMALLOC
584	bool
585	---help---
586	  Process creation and other aspects of virtual memory management can
587	  be streamlined if we restrict the kernel to one PGD for all vmalloc
588	  allocations.  This equates to about 8GB.
589
590	  Under normal circumstances, this is so far and above what is needed
591	  as to be laughable.  However, there are certain applications (such
592	  as benchmark-grade in-kernel web serving) that can make use of as
593	  much vmalloc space as is available.
594
595	  Say N unless you know you need gobs and gobs of vmalloc space.
596
597config VERBOSE_MCHECK
598	bool "Verbose Machine Checks"
599
600config VERBOSE_MCHECK_ON
601	int "Verbose Printing Mode (0=off, 1=on, 2=all)"
602	depends on VERBOSE_MCHECK
603	default 1
604	---help---
605	  This option allows the default printing mode to be set, and then
606	  possibly overridden by a boot command argument.
607
608	  For example, if one wanted the option of printing verbose
609	  machine checks, but wanted the default to be as if verbose
610	  machine check printing was turned off, then one would choose
611	  the printing mode to be 0. Then, upon reboot, one could add
612	  the boot command line "verbose_mcheck=1" to get the normal
613	  verbose machine check printing, or "verbose_mcheck=2" to get
614	  the maximum information available.
615
616	  Take the default (1) unless you want more control or more info.
617
618config HZ
619	int
620	default 1200 if ALPHA_RAWHIDE
621	default 1024
622
623source "drivers/pci/Kconfig"
624source "drivers/eisa/Kconfig"
625
626source "drivers/pcmcia/Kconfig"
627
628config SRM_ENV
629	tristate "SRM environment through procfs"
630	depends on PROC_FS
631	---help---
632	  If you enable this option, a subdirectory inside /proc called
633	  /proc/srm_environment will give you access to the all important
634	  SRM environment variables (those which have a name) and also
635	  to all others (by their internal number).
636
637	  SRM is something like a BIOS for Alpha machines. There are some
638	  other such BIOSes, like AlphaBIOS, which this driver cannot
639	  support (hey, that's not SRM!).
640
641	  Despite the fact that this driver doesn't work on all Alphas (but
642	  only on those which have SRM as their firmware), it's save to
643	  build it even if your particular machine doesn't know about SRM
644	  (or if you intend to compile a generic kernel). It will simply
645	  not create those subdirectory in /proc (and give you some warning,
646	  of course).
647
648	  This driver is also available as a module and will be called
649	  srm_env then.
650
651source "fs/Kconfig.binfmt"
652
653endmenu
654
655source "net/Kconfig"
656
657source "drivers/Kconfig"
658
659source "fs/Kconfig"
660
661source "arch/alpha/Kconfig.debug"
662
663# DUMMY_CONSOLE may be defined in drivers/video/console/Kconfig
664# but we also need it if VGA_HOSE is set
665config DUMMY_CONSOLE
666	bool
667	depends on VGA_HOSE
668	default y
669
670source "security/Kconfig"
671
672source "crypto/Kconfig"
673
674source "lib/Kconfig"
675
676