xref: /openbmc/linux/arch/alpha/Kconfig (revision a09d2831)
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_AOUT
9	select HAVE_IDE
10	select HAVE_OPROFILE
11	select HAVE_SYSCALL_WRAPPERS
12	select HAVE_PERF_EVENTS
13	help
14	  The Alpha is a 64-bit general-purpose processor designed and
15	  marketed by the Digital Equipment Corporation of blessed memory,
16	  now Hewlett-Packard.  The Alpha Linux project has a home page at
17	  <http://www.alphalinux.org/>.
18
19config 64BIT
20	def_bool y
21
22config MMU
23	bool
24	default y
25
26config RWSEM_GENERIC_SPINLOCK
27	bool
28
29config RWSEM_XCHGADD_ALGORITHM
30	bool
31	default y
32
33config ARCH_HAS_ILOG2_U32
34	bool
35	default n
36
37config ARCH_HAS_ILOG2_U64
38	bool
39	default n
40
41config GENERIC_FIND_NEXT_BIT
42	bool
43	default y
44
45config GENERIC_CALIBRATE_DELAY
46	bool
47	default y
48
49config GENERIC_TIME
50	bool
51	default y
52
53config ARCH_USES_GETTIMEOFFSET
54	bool
55	default y
56
57config ZONE_DMA
58	bool
59	default y
60
61config GENERIC_ISA_DMA
62	bool
63	default y
64
65config GENERIC_IOMAP
66	bool
67	default n
68
69config GENERIC_HARDIRQS
70	bool
71	default y
72
73config GENERIC_IRQ_PROBE
74	bool
75	default y
76
77config AUTO_IRQ_AFFINITY
78	bool
79	depends on SMP
80	default y
81
82source "init/Kconfig"
83source "kernel/Kconfig.freezer"
84
85
86menu "System setup"
87
88choice
89	prompt "Alpha system type"
90	default ALPHA_GENERIC
91	---help---
92	  This is the system type of your hardware.  A "generic" kernel will
93	  run on any supported Alpha system. However, if you configure a
94	  kernel for your specific system, it will be faster and smaller.
95
96	  To find out what type of Alpha system you have, you may want to
97	  check out the Linux/Alpha FAQ, accessible on the WWW from
98	  <http://www.alphalinux.org/>. In summary:
99
100	  Alcor/Alpha-XLT     AS 600, AS 500, XL-300, XL-366
101	  Alpha-XL            XL-233, XL-266
102	  AlphaBook1          Alpha laptop
103	  Avanti              AS 200, AS 205, AS 250, AS 255, AS 300, AS 400
104	  Cabriolet           AlphaPC64, AlphaPCI64
105	  DP264               DP264 / DS20 / ES40 / DS10 / DS10L
106	  EB164               EB164 21164 evaluation board
107	  EB64+               EB64+ 21064 evaluation board
108	  EB66                EB66 21066 evaluation board
109	  EB66+               EB66+ 21066 evaluation board
110	  Jensen              DECpc 150, DEC 2000 models 300, 500
111	  LX164               AlphaPC164-LX
112	  Lynx                AS 2100A
113	  Miata               Personal Workstation 433/500/600 a/au
114	  Marvel              AlphaServer ES47 / ES80 / GS1280
115	  Mikasa              AS 1000
116	  Noname              AXPpci33, UDB (Multia)
117	  Noritake            AS 1000A, AS 600A, AS 800
118	  PC164               AlphaPC164
119	  Rawhide             AS 1200, AS 4000, AS 4100
120	  Ruffian             RPX164-2, AlphaPC164-UX, AlphaPC164-BX
121	  SX164               AlphaPC164-SX
122	  Sable               AS 2000, AS 2100
123	  Shark               DS 20L
124	  Takara              Takara (OEM)
125	  Titan               AlphaServer ES45 / DS25 / DS15
126	  Wildfire            AlphaServer GS 40/80/160/320
127
128	  If you don't know what to do, choose "generic".
129
130config ALPHA_GENERIC
131	bool "Generic"
132	help
133	  A generic kernel will run on all supported Alpha hardware.
134
135config ALPHA_ALCOR
136	bool "Alcor/Alpha-XLT"
137	help
138	  For systems using the Digital ALCOR chipset: 5 chips (4, 64-bit data
139	  slices (Data Switch, DSW) - 208-pin PQFP and 1 control (Control, I/O
140	  Address, CIA) - a 383 pin plastic PGA).  It provides a DRAM
141	  controller (256-bit memory bus) and a PCI interface.  It also does
142	  all the work required to support an external Bcache and to maintain
143	  memory coherence when a PCI device DMAs into (or out of) memory.
144
145config ALPHA_XL
146	bool "Alpha-XL"
147	help
148	  XL-233 and XL-266-based Alpha systems.
149
150config ALPHA_BOOK1
151	bool "AlphaBook1"
152	help
153	  Dec AlphaBook1/Burns Alpha-based laptops.
154
155config ALPHA_AVANTI_CH
156	bool "Avanti"
157
158config ALPHA_CABRIOLET
159	bool "Cabriolet"
160	help
161	  Cabriolet AlphaPC64, AlphaPCI64 systems.  Derived from EB64+ but now
162	  baby-AT with Flash boot ROM, no on-board SCSI or Ethernet. 3 ISA
163	  slots, 4 PCI slots (one pair are on a shared slot), uses plug-in
164	  Bcache SIMMs.  Requires power supply with 3.3V output.
165
166config ALPHA_DP264
167	bool "DP264"
168	help
169	  Various 21264 systems with the tsunami core logic chipset.
170	  API Networks: 264DP, UP2000(+), CS20;
171	  Compaq: DS10(E,L), XP900, XP1000, DS20(E), ES40.
172
173config ALPHA_EB164
174	bool "EB164"
175	help
176	  EB164 21164 evaluation board from DEC.  Uses 21164 and ALCOR.  Has
177	  ISA and PCI expansion (3 ISA slots, 2 64-bit PCI slots (one is
178	  shared with an ISA slot) and 2 32-bit PCI slots.  Uses plus-in
179	  Bcache SIMMs. I/O sub-system provides SuperI/O (2S, 1P, FD), KBD,
180	  MOUSE (PS2 style), RTC/NVRAM.  Boot ROM is Flash.  PC-AT-sized
181	  motherboard.  Requires power supply with 3.3V output.
182
183config ALPHA_EB64P_CH
184	bool "EB64+"
185
186config ALPHA_EB66
187	bool "EB66"
188	help
189	  A Digital DS group board.  Uses 21066 or 21066A.  I/O sub-system is
190	  identical to EB64+.  Baby PC-AT size.  Runs from standard PC power
191	  supply.  The EB66 schematic was published as a marketing poster
192	  advertising the 21066 as "the first microprocessor in the world with
193	  embedded PCI".
194
195config ALPHA_EB66P
196	bool "EB66+"
197	help
198	  Later variant of the EB66 board.
199
200config ALPHA_EIGER
201	bool "Eiger"
202	help
203	  Apparently an obscure OEM single-board computer based on the
204	  Typhoon/Tsunami chipset family. Information on it is scanty.
205
206config ALPHA_JENSEN
207	bool "Jensen"
208	help
209	  DEC PC 150 AXP (aka Jensen): This is a very old Digital system - one
210	  of the first-generation Alpha systems. A number of these systems
211	  seem to be available on the second- hand market. The Jensen is a
212	  floor-standing tower system which originally used a 150MHz 21064 It
213	  used programmable logic to interface a 486 EISA I/O bridge to the
214	  CPU.
215
216config ALPHA_LX164
217	bool "LX164"
218	help
219	  A technical overview of this board is available at
220	  <http://www.unix-ag.org/Linux-Alpha/Architectures/LX164.html>.
221
222config ALPHA_LYNX
223	bool "Lynx"
224	help
225	  AlphaServer 2100A-based systems.
226
227config ALPHA_MARVEL
228	bool "Marvel"
229	help
230	  AlphaServer ES47 / ES80 / GS1280 based on EV7.
231
232config ALPHA_MIATA
233	bool "Miata"
234	help
235	  The Digital PersonalWorkStation (PWS 433a, 433au, 500a, 500au, 600a,
236	  or 600au).
237
238config ALPHA_MIKASA
239	bool "Mikasa"
240	help
241	  AlphaServer 1000-based Alpha systems.
242
243config ALPHA_NAUTILUS
244	bool "Nautilus"
245	help
246	  Alpha systems based on the AMD 751 & ALI 1543C chipsets.
247
248config ALPHA_NONAME_CH
249	bool "Noname"
250
251config ALPHA_NORITAKE
252	bool "Noritake"
253	help
254	  AlphaServer 1000A, AlphaServer 600A, and AlphaServer 800-based
255	  systems.
256
257config ALPHA_PC164
258	bool "PC164"
259
260config ALPHA_P2K
261	bool "Platform2000"
262
263config ALPHA_RAWHIDE
264	bool "Rawhide"
265	help
266	  AlphaServer 1200, AlphaServer 4000 and AlphaServer 4100 machines.
267	  See HOWTO at
268	  <http://www.alphalinux.org/docs/rawhide/4100_install.shtml>.
269
270config ALPHA_RUFFIAN
271	bool "Ruffian"
272	help
273	  Samsung APC164UX.  There is a page on known problems and workarounds
274	  at <http://www.alphalinux.org/faq/FAQ-11.html>.
275
276config ALPHA_RX164
277	bool "RX164"
278
279config ALPHA_SX164
280	bool "SX164"
281
282config ALPHA_SABLE
283	bool "Sable"
284	help
285	  Digital AlphaServer 2000 and 2100-based systems.
286
287config ALPHA_SHARK
288	bool "Shark"
289
290config ALPHA_TAKARA
291	bool "Takara"
292	help
293	  Alpha 11164-based OEM single-board computer.
294
295config ALPHA_TITAN
296	bool "Titan"
297	help
298	  AlphaServer ES45/DS25 SMP based on EV68 and Titan chipset.
299
300config ALPHA_WILDFIRE
301	bool "Wildfire"
302	help
303	  AlphaServer GS 40/80/160/320 SMP based on the EV67 core.
304
305endchoice
306
307# clear all implied options (don't want default values for those):
308# Most of these machines have ISA slots; not exactly sure which don't,
309# and this doesn't activate hordes of code, so do it always.
310config ISA
311	bool
312	default y
313	help
314	  Find out whether you have ISA slots on your motherboard.  ISA is the
315	  name of a bus system, i.e. the way the CPU talks to the other stuff
316	  inside your box.  Other bus systems are PCI, EISA, MicroChannel
317	  (MCA) or VESA.  ISA is an older system, now being displaced by PCI;
318	  newer boards don't support it.  If you have ISA, say Y, otherwise N.
319
320config ISA_DMA_API
321	bool
322	default y
323
324config PCI
325	bool
326	depends on !ALPHA_JENSEN
327	default y
328	help
329	  Find out whether you have a PCI motherboard. PCI is the name of a
330	  bus system, i.e. the way the CPU talks to the other stuff inside
331	  your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
332	  VESA. If you have PCI, say Y, otherwise N.
333
334config PCI_DOMAINS
335	bool
336	default y
337
338config PCI_SYSCALL
339	def_bool PCI
340
341config IOMMU_HELPER
342	def_bool PCI
343
344config ALPHA_NONAME
345	bool
346	depends on ALPHA_BOOK1 || ALPHA_NONAME_CH
347	default y
348	help
349	  The AXPpci33 (aka NoName), is based on the EB66 (includes the Multia
350	  UDB).  This design was produced by Digital's Technical OEM (TOEM)
351	  group. It uses the 21066 processor running at 166MHz or 233MHz. It
352	  is a baby-AT size, and runs from a standard PC power supply. It has
353	  5 ISA slots and 3 PCI slots (one pair are a shared slot). There are
354	  2 versions, with either PS/2 or large DIN connectors for the
355	  keyboard.
356
357config ALPHA_EV4
358	bool
359	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
360	default y if !ALPHA_LYNX
361
362config ALPHA_LCA
363	bool
364	depends on ALPHA_NONAME || ALPHA_EB66 || ALPHA_EB66P || ALPHA_P2K
365	default y
366
367config ALPHA_APECS
368	bool
369	depends on !ALPHA_PRIMO && (ALPHA_NORITAKE || ALPHA_MIKASA) || ALPHA_CABRIOLET || ALPHA_AVANTI_CH || ALPHA_EB64P_CH || ALPHA_XL
370	default y
371
372config ALPHA_EB64P
373	bool
374	depends on ALPHA_CABRIOLET || ALPHA_EB64P_CH
375	default y
376	help
377	  Uses 21064 or 21064A and APECs.  Has ISA and PCI expansion (3 ISA,
378	  2 PCI, one pair are on a shared slot). Supports 36-bit DRAM SIMs.
379	  ISA bus generated by Intel SaturnI/O PCI-ISA bridge. On-board SCSI
380	  (NCR 810 on PCI) Ethernet (Digital 21040), KBD, MOUSE (PS2 style),
381	  SuperI/O (2S, 1P, FD), RTC/NVRAM. Boot ROM is EPROM.  PC-AT size.
382	  Runs from standard PC power supply.
383
384config ALPHA_EV5
385	bool "EV5 CPU(s) (model 5/xxx)?" if ALPHA_LYNX
386	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
387
388config ALPHA_EV4
389	bool
390	default y if ALPHA_LYNX && !ALPHA_EV5
391
392config ALPHA_CIA
393	bool
394	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
395	default y
396
397config ALPHA_EV56
398	bool "EV56 CPU (speed >= 366MHz)?" if ALPHA_ALCOR
399	default y if ALPHA_RX164 || ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN || ALPHA_PC164 || ALPHA_TAKARA
400
401config ALPHA_EV56
402	prompt "EV56 CPU (speed >= 333MHz)?"
403	depends on ALPHA_NORITAKE || ALPHA_PRIMO
404
405config ALPHA_EV56
406	prompt "EV56 CPU (speed >= 400MHz)?"
407	depends on ALPHA_RAWHIDE
408
409config ALPHA_PRIMO
410	bool "EV5 CPU daughtercard (model 5/xxx)?"
411	depends on ALPHA_NORITAKE || ALPHA_MIKASA
412	help
413	  Say Y if you have an AS 1000 5/xxx or an AS 1000A 5/xxx.
414
415config ALPHA_GAMMA
416	bool "EV5 CPU(s) (model 5/xxx)?"
417	depends on ALPHA_SABLE
418	help
419	  Say Y if you have an AS 2000 5/xxx or an AS 2100 5/xxx.
420
421config ALPHA_GAMMA
422	bool
423	depends on ALPHA_LYNX
424	default y
425
426config ALPHA_T2
427	bool
428	depends on ALPHA_SABLE || ALPHA_LYNX
429	default y
430
431config ALPHA_PYXIS
432	bool
433	depends on ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN
434	default y
435
436config ALPHA_EV6
437	bool
438	depends on ALPHA_NAUTILUS || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_DP264 || ALPHA_EIGER || ALPHA_MARVEL
439	default y
440
441config ALPHA_TSUNAMI
442	bool
443	depends on ALPHA_SHARK || ALPHA_DP264 || ALPHA_EIGER
444	default y
445
446config ALPHA_EV67
447	bool "EV67 (or later) CPU (speed > 600MHz)?" if ALPHA_DP264 || ALPHA_EIGER
448	default y if ALPHA_NAUTILUS || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_MARVEL
449	help
450	  Is this a machine based on the EV67 core?  If in doubt, select N here
451	  and the machine will be treated as an EV6.
452
453config ALPHA_EV7
454	bool
455	depends on ALPHA_MARVEL
456	default y
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 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_SRM
501	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
502	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
503	---help---
504	  There are two different types of booting firmware on Alphas: SRM,
505	  which is command line driven, and ARC, which uses menus and arrow
506	  keys. Details about the Linux/Alpha booting process are contained in
507	  the Linux/Alpha FAQ, accessible on the WWW from
508	  <http://www.alphalinux.org/>.
509
510	  The usual way to load Linux on an Alpha machine is to use MILO
511	  (a bootloader that lets you pass command line parameters to the
512	  kernel just like lilo does for the x86 architecture) which can be
513	  loaded either from ARC or can be installed directly as a permanent
514	  firmware replacement from floppy (which requires changing a certain
515	  jumper on the motherboard). If you want to do either of these, say N
516	  here. If MILO doesn't work on your system (true for Jensen
517	  motherboards), you can bypass it altogether and boot Linux directly
518	  from an SRM console; say Y here in order to do that. Note that you
519	  won't be able to boot from an IDE disk using SRM.
520
521	  If unsure, say N.
522
523config EISA
524	bool
525	depends on ALPHA_GENERIC || ALPHA_JENSEN || ALPHA_ALCOR || ALPHA_MIKASA || ALPHA_SABLE || ALPHA_LYNX || ALPHA_NORITAKE || ALPHA_RAWHIDE
526	default y
527
528config ARCH_MAY_HAVE_PC_FDC
529	def_bool y
530
531config SMP
532	bool "Symmetric multi-processing support"
533	depends on ALPHA_SABLE || ALPHA_LYNX || ALPHA_RAWHIDE || ALPHA_DP264 || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_GENERIC || ALPHA_SHARK || ALPHA_MARVEL
534	select USE_GENERIC_SMP_HELPERS
535	---help---
536	  This enables support for systems with more than one CPU. If you have
537	  a system with only one CPU, like most personal computers, say N. If
538	  you have a system with more than one CPU, say Y.
539
540	  If you say N here, the kernel will run on single and multiprocessor
541	  machines, but will use only one CPU of a multiprocessor machine. If
542	  you say Y here, the kernel will run on many, but not all,
543	  singleprocessor machines. On a singleprocessor machine, the kernel
544	  will run faster if you say N here.
545
546	  See also the SMP-HOWTO available at
547	  <http://www.tldp.org/docs.html#howto>.
548
549	  If you don't know what to do here, say N.
550
551config HAVE_DEC_LOCK
552	bool
553	depends on SMP
554	default y
555
556config NR_CPUS
557	int "Maximum number of CPUs (2-32)"
558	range 2 32
559	depends on SMP
560	default "32" if ALPHA_GENERIC || ALPHA_MARVEL
561	default "4" if !ALPHA_GENERIC && !ALPHA_MARVEL
562	help
563	  MARVEL support can handle a maximum of 32 CPUs, all the others
564          with working support have a maximum of 4 CPUs.
565
566config ARCH_DISCONTIGMEM_ENABLE
567	bool "Discontiguous Memory Support (EXPERIMENTAL)"
568	depends on EXPERIMENTAL
569	help
570	  Say Y to support efficient handling of discontiguous physical memory,
571	  for architectures which are either NUMA (Non-Uniform Memory Access)
572	  or have huge holes in the physical address space for other reasons.
573	  See <file:Documentation/vm/numa> for more.
574
575source "mm/Kconfig"
576
577config NUMA
578	bool "NUMA Support (EXPERIMENTAL)"
579	depends on DISCONTIGMEM && BROKEN
580	help
581	  Say Y to compile the kernel to support NUMA (Non-Uniform Memory
582	  Access).  This option is for configuring high-end multiprocessor
583	  server machines.  If in doubt, say N.
584
585config NODES_SHIFT
586	int
587	default "7"
588	depends on NEED_MULTIPLE_NODES
589
590# LARGE_VMALLOC is racy, if you *really* need it then fix it first
591config ALPHA_LARGE_VMALLOC
592	bool
593	---help---
594	  Process creation and other aspects of virtual memory management can
595	  be streamlined if we restrict the kernel to one PGD for all vmalloc
596	  allocations.  This equates to about 8GB.
597
598	  Under normal circumstances, this is so far and above what is needed
599	  as to be laughable.  However, there are certain applications (such
600	  as benchmark-grade in-kernel web serving) that can make use of as
601	  much vmalloc space as is available.
602
603	  Say N unless you know you need gobs and gobs of vmalloc space.
604
605config VERBOSE_MCHECK
606	bool "Verbose Machine Checks"
607
608config VERBOSE_MCHECK_ON
609	int "Verbose Printing Mode (0=off, 1=on, 2=all)"
610	depends on VERBOSE_MCHECK
611	default 1
612	---help---
613	  This option allows the default printing mode to be set, and then
614	  possibly overridden by a boot command argument.
615
616	  For example, if one wanted the option of printing verbose
617	  machine checks, but wanted the default to be as if verbose
618	  machine check printing was turned off, then one would choose
619	  the printing mode to be 0. Then, upon reboot, one could add
620	  the boot command line "verbose_mcheck=1" to get the normal
621	  verbose machine check printing, or "verbose_mcheck=2" to get
622	  the maximum information available.
623
624	  Take the default (1) unless you want more control or more info.
625
626config HZ
627	int
628	default 1200 if ALPHA_RAWHIDE
629	default 1024
630
631source "drivers/pci/Kconfig"
632source "drivers/eisa/Kconfig"
633
634source "drivers/pcmcia/Kconfig"
635
636config SRM_ENV
637	tristate "SRM environment through procfs"
638	depends on PROC_FS
639	---help---
640	  If you enable this option, a subdirectory inside /proc called
641	  /proc/srm_environment will give you access to the all important
642	  SRM environment variables (those which have a name) and also
643	  to all others (by their internal number).
644
645	  SRM is something like a BIOS for Alpha machines. There are some
646	  other such BIOSes, like AlphaBIOS, which this driver cannot
647	  support (hey, that's not SRM!).
648
649	  Despite the fact that this driver doesn't work on all Alphas (but
650	  only on those which have SRM as their firmware), it's save to
651	  build it even if your particular machine doesn't know about SRM
652	  (or if you intend to compile a generic kernel). It will simply
653	  not create those subdirectory in /proc (and give you some warning,
654	  of course).
655
656	  This driver is also available as a module and will be called
657	  srm_env then.
658
659source "fs/Kconfig.binfmt"
660
661endmenu
662
663source "net/Kconfig"
664
665source "drivers/Kconfig"
666
667source "fs/Kconfig"
668
669source "arch/alpha/Kconfig.debug"
670
671# DUMMY_CONSOLE may be defined in drivers/video/console/Kconfig
672# but we also need it if VGA_HOSE is set
673config DUMMY_CONSOLE
674	bool
675	depends on VGA_HOSE
676	default y
677
678source "security/Kconfig"
679
680source "crypto/Kconfig"
681
682source "lib/Kconfig"
683
684