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
50 config GENERIC_CMOS_UPDATE
57 config NEED_DMA_MAP_STATE
60 config NEED_SG_DMA_LENGTH
63 config GENERIC_ISA_DMA
71 config GENERIC_HARDIRQS
75 config GENERIC_IRQ_PROBE
79 config AUTO_IRQ_AFFINITY
85 source "kernel/Kconfig.freezer"
91 prompt "Alpha system type"
94 This is the system type of your hardware. A "generic" kernel will
95 run on any supported Alpha system. However, if you configure a
96 kernel for your specific system, it will be faster and smaller.
98 To find out what type of Alpha system you have, you may want to
99 check out the Linux/Alpha FAQ, accessible on the WWW from
100 <http://www.alphalinux.org/>. In summary:
102 Alcor/Alpha-XLT AS 600, AS 500, XL-300, XL-366
103 Alpha-XL XL-233, XL-266
104 AlphaBook1 Alpha laptop
105 Avanti AS 200, AS 205, AS 250, AS 255, AS 300, AS 400
106 Cabriolet AlphaPC64, AlphaPCI64
107 DP264 DP264 / DS20 / ES40 / DS10 / DS10L
108 EB164 EB164 21164 evaluation board
109 EB64+ EB64+ 21064 evaluation board
110 EB66 EB66 21066 evaluation board
111 EB66+ EB66+ 21066 evaluation board
112 Jensen DECpc 150, DEC 2000 models 300, 500
115 Miata Personal Workstation 433/500/600 a/au
116 Marvel AlphaServer ES47 / ES80 / GS1280
118 Noname AXPpci33, UDB (Multia)
119 Noritake AS 1000A, AS 600A, AS 800
121 Rawhide AS 1200, AS 4000, AS 4100
122 Ruffian RPX164-2, AlphaPC164-UX, AlphaPC164-BX
124 Sable AS 2000, AS 2100
127 Titan AlphaServer ES45 / DS25 / DS15
128 Wildfire AlphaServer GS 40/80/160/320
130 If you don't know what to do, choose "generic".
135 A generic kernel will run on all supported Alpha hardware.
138 bool "Alcor/Alpha-XLT"
140 For systems using the Digital ALCOR chipset: 5 chips (4, 64-bit data
141 slices (Data Switch, DSW) - 208-pin PQFP and 1 control (Control, I/O
142 Address, CIA) - a 383 pin plastic PGA). It provides a DRAM
143 controller (256-bit memory bus) and a PCI interface. It also does
144 all the work required to support an external Bcache and to maintain
145 memory coherence when a PCI device DMAs into (or out of) memory.
150 XL-233 and XL-266-based Alpha systems.
155 Dec AlphaBook1/Burns Alpha-based laptops.
157 config ALPHA_AVANTI_CH
160 config ALPHA_CABRIOLET
163 Cabriolet AlphaPC64, AlphaPCI64 systems. Derived from EB64+ but now
164 baby-AT with Flash boot ROM, no on-board SCSI or Ethernet. 3 ISA
165 slots, 4 PCI slots (one pair are on a shared slot), uses plug-in
166 Bcache SIMMs. Requires power supply with 3.3V output.
171 Various 21264 systems with the tsunami core logic chipset.
172 API Networks: 264DP, UP2000(+), CS20;
173 Compaq: DS10(E,L), XP900, XP1000, DS20(E), ES40.
178 EB164 21164 evaluation board from DEC. Uses 21164 and ALCOR. Has
179 ISA and PCI expansion (3 ISA slots, 2 64-bit PCI slots (one is
180 shared with an ISA slot) and 2 32-bit PCI slots. Uses plus-in
181 Bcache SIMMs. I/O sub-system provides SuperI/O (2S, 1P, FD), KBD,
182 MOUSE (PS2 style), RTC/NVRAM. Boot ROM is Flash. PC-AT-sized
183 motherboard. Requires power supply with 3.3V output.
185 config ALPHA_EB64P_CH
191 A Digital DS group board. Uses 21066 or 21066A. I/O sub-system is
192 identical to EB64+. Baby PC-AT size. Runs from standard PC power
193 supply. The EB66 schematic was published as a marketing poster
194 advertising the 21066 as "the first microprocessor in the world with
200 Later variant of the EB66 board.
205 Apparently an obscure OEM single-board computer based on the
206 Typhoon/Tsunami chipset family. Information on it is scanty.
211 DEC PC 150 AXP (aka Jensen): This is a very old Digital system - one
212 of the first-generation Alpha systems. A number of these systems
213 seem to be available on the second- hand market. The Jensen is a
214 floor-standing tower system which originally used a 150MHz 21064 It
215 used programmable logic to interface a 486 EISA I/O bridge to the
221 A technical overview of this board is available at
222 <http://www.unix-ag.org/Linux-Alpha/Architectures/LX164.html>.
227 AlphaServer 2100A-based systems.
232 AlphaServer ES47 / ES80 / GS1280 based on EV7.
237 The Digital PersonalWorkStation (PWS 433a, 433au, 500a, 500au, 600a,
243 AlphaServer 1000-based Alpha systems.
245 config ALPHA_NAUTILUS
248 Alpha systems based on the AMD 751 & ALI 1543C chipsets.
250 config ALPHA_NONAME_CH
253 config ALPHA_NORITAKE
256 AlphaServer 1000A, AlphaServer 600A, and AlphaServer 800-based
268 AlphaServer 1200, AlphaServer 4000 and AlphaServer 4100 machines.
270 <http://www.alphalinux.org/docs/rawhide/4100_install.shtml>.
275 Samsung APC164UX. There is a page on known problems and workarounds
276 at <http://www.alphalinux.org/faq/FAQ-11.html>.
287 Digital AlphaServer 2000 and 2100-based systems.
295 Alpha 11164-based OEM single-board computer.
300 AlphaServer ES45/DS25 SMP based on EV68 and Titan chipset.
302 config ALPHA_WILDFIRE
305 AlphaServer GS 40/80/160/320 SMP based on the EV67 core.
309 # clear all implied options (don't want default values for those):
310 # Most of these machines have ISA slots; not exactly sure which don't,
311 # and this doesn't activate hordes of code, so do it always.
316 Find out whether you have ISA slots on your motherboard. ISA is the
317 name of a bus system, i.e. the way the CPU talks to the other stuff
318 inside your box. Other bus systems are PCI, EISA, MicroChannel
319 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
320 newer boards don't support it. If you have ISA, say Y, otherwise N.
328 depends on !ALPHA_JENSEN
331 Find out whether you have a PCI motherboard. PCI is the name of a
332 bus system, i.e. the way the CPU talks to the other stuff inside
333 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
334 VESA. If you have PCI, say Y, otherwise N.
348 depends on ALPHA_BOOK1 || ALPHA_NONAME_CH
351 The AXPpci33 (aka NoName), is based on the EB66 (includes the Multia
352 UDB). This design was produced by Digital's Technical OEM (TOEM)
353 group. It uses the 21066 processor running at 166MHz or 233MHz. It
354 is a baby-AT size, and runs from a standard PC power supply. It has
355 5 ISA slots and 3 PCI slots (one pair are a shared slot). There are
356 2 versions, with either PS/2 or large DIN connectors for the
361 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
362 default y if !ALPHA_LYNX
366 depends on ALPHA_NONAME || ALPHA_EB66 || ALPHA_EB66P || ALPHA_P2K
371 depends on !ALPHA_PRIMO && (ALPHA_NORITAKE || ALPHA_MIKASA) || ALPHA_CABRIOLET || ALPHA_AVANTI_CH || ALPHA_EB64P_CH || ALPHA_XL
376 depends on ALPHA_CABRIOLET || ALPHA_EB64P_CH
379 Uses 21064 or 21064A and APECs. Has ISA and PCI expansion (3 ISA,
380 2 PCI, one pair are on a shared slot). Supports 36-bit DRAM SIMs.
381 ISA bus generated by Intel SaturnI/O PCI-ISA bridge. On-board SCSI
382 (NCR 810 on PCI) Ethernet (Digital 21040), KBD, MOUSE (PS2 style),
383 SuperI/O (2S, 1P, FD), RTC/NVRAM. Boot ROM is EPROM. PC-AT size.
384 Runs from standard PC power supply.
387 bool "EV5 CPU(s) (model 5/xxx)?" if ALPHA_LYNX
388 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 default y if ALPHA_LYNX && !ALPHA_EV5
396 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 bool "EV56 CPU (speed >= 366MHz)?" if ALPHA_ALCOR
401 default y if ALPHA_RX164 || ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN || ALPHA_PC164 || ALPHA_TAKARA
404 prompt "EV56 CPU (speed >= 333MHz)?"
405 depends on ALPHA_NORITAKE || ALPHA_PRIMO
408 prompt "EV56 CPU (speed >= 400MHz)?"
409 depends on ALPHA_RAWHIDE
412 bool "EV5 CPU daughtercard (model 5/xxx)?"
413 depends on ALPHA_NORITAKE || ALPHA_MIKASA
415 Say Y if you have an AS 1000 5/xxx or an AS 1000A 5/xxx.
418 bool "EV5 CPU(s) (model 5/xxx)?"
419 depends on ALPHA_SABLE
421 Say Y if you have an AS 2000 5/xxx or an AS 2100 5/xxx.
425 depends on ALPHA_LYNX
430 depends on ALPHA_SABLE || ALPHA_LYNX
435 depends on ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN
440 depends on ALPHA_NAUTILUS || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_DP264 || ALPHA_EIGER || ALPHA_MARVEL
445 depends on ALPHA_SHARK || ALPHA_DP264 || ALPHA_EIGER
449 bool "EV67 (or later) CPU (speed > 600MHz)?" if ALPHA_DP264 || ALPHA_EIGER
450 default y if ALPHA_NAUTILUS || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_MARVEL
452 Is this a machine based on the EV67 core? If in doubt, select N here
453 and the machine will be treated as an EV6.
457 depends on ALPHA_MARVEL
462 depends on ALPHA_RAWHIDE
467 depends on ALPHA_RX164
470 config ALPHA_IRONGATE
472 depends on ALPHA_NAUTILUS
475 config GENERIC_HWEIGHT
477 default y if !ALPHA_EV67
481 depends on ALPHA_XL || ALPHA_AVANTI_CH
484 Avanti AS 200, AS 205, AS 250, AS 255, AS 300, and AS 400-based
486 <http://www.unix-ag.org/Linux-Alpha/Architectures/Avanti.html>.
488 config ALPHA_BROKEN_IRQ_MASK
490 depends on ALPHA_GENERIC || ALPHA_PC164
495 depends on ALPHA_GENERIC || ALPHA_TITAN || ALPHA_MARVEL || ALPHA_TSUNAMI
498 Support VGA on an arbitrary hose; needed for several platforms
499 which always have multiple hoses, and whose consoles support it.
503 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
504 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
506 There are two different types of booting firmware on Alphas: SRM,
507 which is command line driven, and ARC, which uses menus and arrow
508 keys. Details about the Linux/Alpha booting process are contained in
509 the Linux/Alpha FAQ, accessible on the WWW from
510 <http://www.alphalinux.org/>.
512 The usual way to load Linux on an Alpha machine is to use MILO
513 (a bootloader that lets you pass command line parameters to the
514 kernel just like lilo does for the x86 architecture) which can be
515 loaded either from ARC or can be installed directly as a permanent
516 firmware replacement from floppy (which requires changing a certain
517 jumper on the motherboard). If you want to do either of these, say N
518 here. If MILO doesn't work on your system (true for Jensen
519 motherboards), you can bypass it altogether and boot Linux directly
520 from an SRM console; say Y here in order to do that. Note that you
521 won't be able to boot from an IDE disk using SRM.
527 depends on ALPHA_GENERIC || ALPHA_JENSEN || ALPHA_ALCOR || ALPHA_MIKASA || ALPHA_SABLE || ALPHA_LYNX || ALPHA_NORITAKE || ALPHA_RAWHIDE
530 config ARCH_MAY_HAVE_PC_FDC
534 bool "Symmetric multi-processing support"
535 depends on ALPHA_SABLE || ALPHA_LYNX || ALPHA_RAWHIDE || ALPHA_DP264 || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_GENERIC || ALPHA_SHARK || ALPHA_MARVEL
536 select USE_GENERIC_SMP_HELPERS
538 This enables support for systems with more than one CPU. If you have
539 a system with only one CPU, like most personal computers, say N. If
540 you have a system with more than one CPU, say Y.
542 If you say N here, the kernel will run on single and multiprocessor
543 machines, but will use only one CPU of a multiprocessor machine. If
544 you say Y here, the kernel will run on many, but not all,
545 singleprocessor machines. On a singleprocessor machine, the kernel
546 will run faster if you say N here.
548 See also the SMP-HOWTO available at
549 <http://www.tldp.org/docs.html#howto>.
551 If you don't know what to do here, say N.
559 int "Maximum number of CPUs (2-32)"
562 default "32" if ALPHA_GENERIC || ALPHA_MARVEL
563 default "4" if !ALPHA_GENERIC && !ALPHA_MARVEL
565 MARVEL support can handle a maximum of 32 CPUs, all the others
566 with working support have a maximum of 4 CPUs.
568 config ARCH_DISCONTIGMEM_ENABLE
569 bool "Discontiguous Memory Support (EXPERIMENTAL)"
570 depends on EXPERIMENTAL
572 Say Y to support efficient handling of discontiguous physical memory,
573 for architectures which are either NUMA (Non-Uniform Memory Access)
574 or have huge holes in the physical address space for other reasons.
575 See <file:Documentation/vm/numa> for more.
580 bool "NUMA Support (EXPERIMENTAL)"
581 depends on DISCONTIGMEM && BROKEN
583 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
584 Access). This option is for configuring high-end multiprocessor
585 server machines. If in doubt, say N.
590 depends on NEED_MULTIPLE_NODES
592 # LARGE_VMALLOC is racy, if you *really* need it then fix it first
593 config ALPHA_LARGE_VMALLOC
596 Process creation and other aspects of virtual memory management can
597 be streamlined if we restrict the kernel to one PGD for all vmalloc
598 allocations. This equates to about 8GB.
600 Under normal circumstances, this is so far and above what is needed
601 as to be laughable. However, there are certain applications (such
602 as benchmark-grade in-kernel web serving) that can make use of as
603 much vmalloc space as is available.
605 Say N unless you know you need gobs and gobs of vmalloc space.
607 config VERBOSE_MCHECK
608 bool "Verbose Machine Checks"
610 config VERBOSE_MCHECK_ON
611 int "Verbose Printing Mode (0=off, 1=on, 2=all)"
612 depends on VERBOSE_MCHECK
615 This option allows the default printing mode to be set, and then
616 possibly overridden by a boot command argument.
618 For example, if one wanted the option of printing verbose
619 machine checks, but wanted the default to be as if verbose
620 machine check printing was turned off, then one would choose
621 the printing mode to be 0. Then, upon reboot, one could add
622 the boot command line "verbose_mcheck=1" to get the normal
623 verbose machine check printing, or "verbose_mcheck=2" to get
624 the maximum information available.
626 Take the default (1) unless you want more control or more info.
630 default 1200 if ALPHA_RAWHIDE
633 source "drivers/pci/Kconfig"
634 source "drivers/eisa/Kconfig"
636 source "drivers/pcmcia/Kconfig"
639 tristate "SRM environment through procfs"
642 If you enable this option, a subdirectory inside /proc called
643 /proc/srm_environment will give you access to the all important
644 SRM environment variables (those which have a name) and also
645 to all others (by their internal number).
647 SRM is something like a BIOS for Alpha machines. There are some
648 other such BIOSes, like AlphaBIOS, which this driver cannot
649 support (hey, that's not SRM!).
651 Despite the fact that this driver doesn't work on all Alphas (but
652 only on those which have SRM as their firmware), it's save to
653 build it even if your particular machine doesn't know about SRM
654 (or if you intend to compile a generic kernel). It will simply
655 not create those subdirectory in /proc (and give you some warning,
658 This driver is also available as a module and will be called
661 source "fs/Kconfig.binfmt"
667 source "drivers/Kconfig"
671 source "arch/alpha/Kconfig.debug"
673 # DUMMY_CONSOLE may be defined in drivers/video/console/Kconfig
674 # but we also need it if VGA_HOSE is set
680 source "security/Kconfig"
682 source "crypto/Kconfig"