2 # For a description of the syntax of this configuration file,
3 # see Documentation/kbuild/kconfig-language.txt.
11 select HAVE_SYSCALL_WRAPPERS
12 select HAVE_PERF_EVENTS
15 The Alpha is a 64-bit general-purpose processor designed and
16 marketed by the Digital Equipment Corporation of blessed memory,
17 now Hewlett-Packard. The Alpha Linux project has a home page at
18 <http://www.alphalinux.org/>.
27 config RWSEM_GENERIC_SPINLOCK
30 config RWSEM_XCHGADD_ALGORITHM
34 config ARCH_HAS_ILOG2_U32
38 config ARCH_HAS_ILOG2_U64
42 config GENERIC_FIND_NEXT_BIT
46 config GENERIC_CALIBRATE_DELAY
54 config GENERIC_CMOS_UPDATE
61 config NEED_DMA_MAP_STATE
64 config NEED_SG_DMA_LENGTH
67 config GENERIC_ISA_DMA
75 config GENERIC_HARDIRQS
79 config GENERIC_IRQ_PROBE
83 config AUTO_IRQ_AFFINITY
89 source "kernel/Kconfig.freezer"
95 prompt "Alpha system type"
98 This is the system type of your hardware. A "generic" kernel will
99 run on any supported Alpha system. However, if you configure a
100 kernel for your specific system, it will be faster and smaller.
102 To find out what type of Alpha system you have, you may want to
103 check out the Linux/Alpha FAQ, accessible on the WWW from
104 <http://www.alphalinux.org/>. In summary:
106 Alcor/Alpha-XLT AS 600, AS 500, XL-300, XL-366
107 Alpha-XL XL-233, XL-266
108 AlphaBook1 Alpha laptop
109 Avanti AS 200, AS 205, AS 250, AS 255, AS 300, AS 400
110 Cabriolet AlphaPC64, AlphaPCI64
111 DP264 DP264 / DS20 / ES40 / DS10 / DS10L
112 EB164 EB164 21164 evaluation board
113 EB64+ EB64+ 21064 evaluation board
114 EB66 EB66 21066 evaluation board
115 EB66+ EB66+ 21066 evaluation board
116 Jensen DECpc 150, DEC 2000 models 300, 500
119 Miata Personal Workstation 433/500/600 a/au
120 Marvel AlphaServer ES47 / ES80 / GS1280
122 Noname AXPpci33, UDB (Multia)
123 Noritake AS 1000A, AS 600A, AS 800
125 Rawhide AS 1200, AS 4000, AS 4100
126 Ruffian RPX164-2, AlphaPC164-UX, AlphaPC164-BX
128 Sable AS 2000, AS 2100
131 Titan AlphaServer ES45 / DS25 / DS15
132 Wildfire AlphaServer GS 40/80/160/320
134 If you don't know what to do, choose "generic".
139 A generic kernel will run on all supported Alpha hardware.
142 bool "Alcor/Alpha-XLT"
144 For systems using the Digital ALCOR chipset: 5 chips (4, 64-bit data
145 slices (Data Switch, DSW) - 208-pin PQFP and 1 control (Control, I/O
146 Address, CIA) - a 383 pin plastic PGA). It provides a DRAM
147 controller (256-bit memory bus) and a PCI interface. It also does
148 all the work required to support an external Bcache and to maintain
149 memory coherence when a PCI device DMAs into (or out of) memory.
154 XL-233 and XL-266-based Alpha systems.
159 Dec AlphaBook1/Burns Alpha-based laptops.
161 config ALPHA_AVANTI_CH
164 config ALPHA_CABRIOLET
167 Cabriolet AlphaPC64, AlphaPCI64 systems. Derived from EB64+ but now
168 baby-AT with Flash boot ROM, no on-board SCSI or Ethernet. 3 ISA
169 slots, 4 PCI slots (one pair are on a shared slot), uses plug-in
170 Bcache SIMMs. Requires power supply with 3.3V output.
175 Various 21264 systems with the tsunami core logic chipset.
176 API Networks: 264DP, UP2000(+), CS20;
177 Compaq: DS10(E,L), XP900, XP1000, DS20(E), ES40.
182 EB164 21164 evaluation board from DEC. Uses 21164 and ALCOR. Has
183 ISA and PCI expansion (3 ISA slots, 2 64-bit PCI slots (one is
184 shared with an ISA slot) and 2 32-bit PCI slots. Uses plus-in
185 Bcache SIMMs. I/O sub-system provides SuperI/O (2S, 1P, FD), KBD,
186 MOUSE (PS2 style), RTC/NVRAM. Boot ROM is Flash. PC-AT-sized
187 motherboard. Requires power supply with 3.3V output.
189 config ALPHA_EB64P_CH
195 A Digital DS group board. Uses 21066 or 21066A. I/O sub-system is
196 identical to EB64+. Baby PC-AT size. Runs from standard PC power
197 supply. The EB66 schematic was published as a marketing poster
198 advertising the 21066 as "the first microprocessor in the world with
204 Later variant of the EB66 board.
209 Apparently an obscure OEM single-board computer based on the
210 Typhoon/Tsunami chipset family. Information on it is scanty.
215 DEC PC 150 AXP (aka Jensen): This is a very old Digital system - one
216 of the first-generation Alpha systems. A number of these systems
217 seem to be available on the second- hand market. The Jensen is a
218 floor-standing tower system which originally used a 150MHz 21064 It
219 used programmable logic to interface a 486 EISA I/O bridge to the
225 A technical overview of this board is available at
226 <http://www.unix-ag.org/Linux-Alpha/Architectures/LX164.html>.
231 AlphaServer 2100A-based systems.
236 AlphaServer ES47 / ES80 / GS1280 based on EV7.
241 The Digital PersonalWorkStation (PWS 433a, 433au, 500a, 500au, 600a,
247 AlphaServer 1000-based Alpha systems.
249 config ALPHA_NAUTILUS
252 Alpha systems based on the AMD 751 & ALI 1543C chipsets.
254 config ALPHA_NONAME_CH
257 config ALPHA_NORITAKE
260 AlphaServer 1000A, AlphaServer 600A, and AlphaServer 800-based
272 AlphaServer 1200, AlphaServer 4000 and AlphaServer 4100 machines.
274 <http://www.alphalinux.org/docs/rawhide/4100_install.shtml>.
279 Samsung APC164UX. There is a page on known problems and workarounds
280 at <http://www.alphalinux.org/faq/FAQ-11.html>.
291 Digital AlphaServer 2000 and 2100-based systems.
299 Alpha 11164-based OEM single-board computer.
304 AlphaServer ES45/DS25 SMP based on EV68 and Titan chipset.
306 config ALPHA_WILDFIRE
309 AlphaServer GS 40/80/160/320 SMP based on the EV67 core.
313 # clear all implied options (don't want default values for those):
314 # Most of these machines have ISA slots; not exactly sure which don't,
315 # and this doesn't activate hordes of code, so do it always.
320 Find out whether you have ISA slots on your motherboard. ISA is the
321 name of a bus system, i.e. the way the CPU talks to the other stuff
322 inside your box. Other bus systems are PCI, EISA, MicroChannel
323 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
324 newer boards don't support it. If you have ISA, say Y, otherwise N.
332 depends on !ALPHA_JENSEN
335 Find out whether you have a PCI motherboard. PCI is the name of a
336 bus system, i.e. the way the CPU talks to the other stuff inside
337 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
338 VESA. If you have PCI, say Y, otherwise N.
352 depends on ALPHA_BOOK1 || ALPHA_NONAME_CH
355 The AXPpci33 (aka NoName), is based on the EB66 (includes the Multia
356 UDB). This design was produced by Digital's Technical OEM (TOEM)
357 group. It uses the 21066 processor running at 166MHz or 233MHz. It
358 is a baby-AT size, and runs from a standard PC power supply. It has
359 5 ISA slots and 3 PCI slots (one pair are a shared slot). There are
360 2 versions, with either PS/2 or large DIN connectors for the
365 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
366 default y if !ALPHA_LYNX
370 depends on ALPHA_NONAME || ALPHA_EB66 || ALPHA_EB66P || ALPHA_P2K
375 depends on !ALPHA_PRIMO && (ALPHA_NORITAKE || ALPHA_MIKASA) || ALPHA_CABRIOLET || ALPHA_AVANTI_CH || ALPHA_EB64P_CH || ALPHA_XL
380 depends on ALPHA_CABRIOLET || ALPHA_EB64P_CH
383 Uses 21064 or 21064A and APECs. Has ISA and PCI expansion (3 ISA,
384 2 PCI, one pair are on a shared slot). Supports 36-bit DRAM SIMs.
385 ISA bus generated by Intel SaturnI/O PCI-ISA bridge. On-board SCSI
386 (NCR 810 on PCI) Ethernet (Digital 21040), KBD, MOUSE (PS2 style),
387 SuperI/O (2S, 1P, FD), RTC/NVRAM. Boot ROM is EPROM. PC-AT size.
388 Runs from standard PC power supply.
391 bool "EV5 CPU(s) (model 5/xxx)?" if ALPHA_LYNX
392 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
396 default y if ALPHA_LYNX && !ALPHA_EV5
400 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
404 bool "EV56 CPU (speed >= 366MHz)?" if ALPHA_ALCOR
405 default y if ALPHA_RX164 || ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN || ALPHA_PC164 || ALPHA_TAKARA
408 prompt "EV56 CPU (speed >= 333MHz)?"
409 depends on ALPHA_NORITAKE || ALPHA_PRIMO
412 prompt "EV56 CPU (speed >= 400MHz)?"
413 depends on ALPHA_RAWHIDE
416 bool "EV5 CPU daughtercard (model 5/xxx)?"
417 depends on ALPHA_NORITAKE || ALPHA_MIKASA
419 Say Y if you have an AS 1000 5/xxx or an AS 1000A 5/xxx.
422 bool "EV5 CPU(s) (model 5/xxx)?"
423 depends on ALPHA_SABLE
425 Say Y if you have an AS 2000 5/xxx or an AS 2100 5/xxx.
429 depends on ALPHA_LYNX
434 depends on ALPHA_SABLE || ALPHA_LYNX
439 depends on ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN
444 depends on ALPHA_NAUTILUS || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_DP264 || ALPHA_EIGER || ALPHA_MARVEL
449 depends on ALPHA_SHARK || ALPHA_DP264 || ALPHA_EIGER
453 bool "EV67 (or later) CPU (speed > 600MHz)?" if ALPHA_DP264 || ALPHA_EIGER
454 default y if ALPHA_NAUTILUS || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_MARVEL
456 Is this a machine based on the EV67 core? If in doubt, select N here
457 and the machine will be treated as an EV6.
461 depends on ALPHA_MARVEL
466 depends on ALPHA_RAWHIDE
471 depends on ALPHA_RX164
474 config ALPHA_IRONGATE
476 depends on ALPHA_NAUTILUS
479 config GENERIC_HWEIGHT
481 default y if !ALPHA_EV67
485 depends on ALPHA_XL || ALPHA_AVANTI_CH
488 Avanti AS 200, AS 205, AS 250, AS 255, AS 300, and AS 400-based
490 <http://www.unix-ag.org/Linux-Alpha/Architectures/Avanti.html>.
492 config ALPHA_BROKEN_IRQ_MASK
494 depends on ALPHA_GENERIC || ALPHA_PC164
499 depends on ALPHA_GENERIC || ALPHA_TITAN || ALPHA_MARVEL || ALPHA_TSUNAMI
502 Support VGA on an arbitrary hose; needed for several platforms
503 which always have multiple hoses, and whose consoles support it.
507 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
508 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
510 There are two different types of booting firmware on Alphas: SRM,
511 which is command line driven, and ARC, which uses menus and arrow
512 keys. Details about the Linux/Alpha booting process are contained in
513 the Linux/Alpha FAQ, accessible on the WWW from
514 <http://www.alphalinux.org/>.
516 The usual way to load Linux on an Alpha machine is to use MILO
517 (a bootloader that lets you pass command line parameters to the
518 kernel just like lilo does for the x86 architecture) which can be
519 loaded either from ARC or can be installed directly as a permanent
520 firmware replacement from floppy (which requires changing a certain
521 jumper on the motherboard). If you want to do either of these, say N
522 here. If MILO doesn't work on your system (true for Jensen
523 motherboards), you can bypass it altogether and boot Linux directly
524 from an SRM console; say Y here in order to do that. Note that you
525 won't be able to boot from an IDE disk using SRM.
531 depends on ALPHA_GENERIC || ALPHA_JENSEN || ALPHA_ALCOR || ALPHA_MIKASA || ALPHA_SABLE || ALPHA_LYNX || ALPHA_NORITAKE || ALPHA_RAWHIDE
534 config ARCH_MAY_HAVE_PC_FDC
538 bool "Symmetric multi-processing support"
539 depends on ALPHA_SABLE || ALPHA_LYNX || ALPHA_RAWHIDE || ALPHA_DP264 || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_GENERIC || ALPHA_SHARK || ALPHA_MARVEL
540 select USE_GENERIC_SMP_HELPERS
542 This enables support for systems with more than one CPU. If you have
543 a system with only one CPU, like most personal computers, say N. If
544 you have a system with more than one CPU, say Y.
546 If you say N here, the kernel will run on single and multiprocessor
547 machines, but will use only one CPU of a multiprocessor machine. If
548 you say Y here, the kernel will run on many, but not all,
549 singleprocessor machines. On a singleprocessor machine, the kernel
550 will run faster if you say N here.
552 See also the SMP-HOWTO available at
553 <http://www.tldp.org/docs.html#howto>.
555 If you don't know what to do here, say N.
563 int "Maximum number of CPUs (2-32)"
566 default "32" if ALPHA_GENERIC || ALPHA_MARVEL
567 default "4" if !ALPHA_GENERIC && !ALPHA_MARVEL
569 MARVEL support can handle a maximum of 32 CPUs, all the others
570 with working support have a maximum of 4 CPUs.
572 config ARCH_DISCONTIGMEM_ENABLE
573 bool "Discontiguous Memory Support (EXPERIMENTAL)"
574 depends on EXPERIMENTAL
576 Say Y to support efficient handling of discontiguous physical memory,
577 for architectures which are either NUMA (Non-Uniform Memory Access)
578 or have huge holes in the physical address space for other reasons.
579 See <file:Documentation/vm/numa> for more.
584 bool "NUMA Support (EXPERIMENTAL)"
585 depends on DISCONTIGMEM && BROKEN
587 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
588 Access). This option is for configuring high-end multiprocessor
589 server machines. If in doubt, say N.
594 depends on NEED_MULTIPLE_NODES
596 # LARGE_VMALLOC is racy, if you *really* need it then fix it first
597 config ALPHA_LARGE_VMALLOC
600 Process creation and other aspects of virtual memory management can
601 be streamlined if we restrict the kernel to one PGD for all vmalloc
602 allocations. This equates to about 8GB.
604 Under normal circumstances, this is so far and above what is needed
605 as to be laughable. However, there are certain applications (such
606 as benchmark-grade in-kernel web serving) that can make use of as
607 much vmalloc space as is available.
609 Say N unless you know you need gobs and gobs of vmalloc space.
611 config VERBOSE_MCHECK
612 bool "Verbose Machine Checks"
614 config VERBOSE_MCHECK_ON
615 int "Verbose Printing Mode (0=off, 1=on, 2=all)"
616 depends on VERBOSE_MCHECK
619 This option allows the default printing mode to be set, and then
620 possibly overridden by a boot command argument.
622 For example, if one wanted the option of printing verbose
623 machine checks, but wanted the default to be as if verbose
624 machine check printing was turned off, then one would choose
625 the printing mode to be 0. Then, upon reboot, one could add
626 the boot command line "verbose_mcheck=1" to get the normal
627 verbose machine check printing, or "verbose_mcheck=2" to get
628 the maximum information available.
630 Take the default (1) unless you want more control or more info.
634 default 1200 if ALPHA_RAWHIDE
637 source "drivers/pci/Kconfig"
638 source "drivers/eisa/Kconfig"
640 source "drivers/pcmcia/Kconfig"
643 tristate "SRM environment through procfs"
646 If you enable this option, a subdirectory inside /proc called
647 /proc/srm_environment will give you access to the all important
648 SRM environment variables (those which have a name) and also
649 to all others (by their internal number).
651 SRM is something like a BIOS for Alpha machines. There are some
652 other such BIOSes, like AlphaBIOS, which this driver cannot
653 support (hey, that's not SRM!).
655 Despite the fact that this driver doesn't work on all Alphas (but
656 only on those which have SRM as their firmware), it's save to
657 build it even if your particular machine doesn't know about SRM
658 (or if you intend to compile a generic kernel). It will simply
659 not create those subdirectory in /proc (and give you some warning,
662 This driver is also available as a module and will be called
665 source "fs/Kconfig.binfmt"
671 source "drivers/Kconfig"
675 source "arch/alpha/Kconfig.debug"
677 # DUMMY_CONSOLE may be defined in drivers/video/console/Kconfig
678 # but we also need it if VGA_HOSE is set
684 source "security/Kconfig"
686 source "crypto/Kconfig"