4 select ARCH_MIGHT_HAVE_PC_PARPORT
5 select ARCH_MIGHT_HAVE_PC_SERIO
9 select HAVE_PCSPKR_PLATFORM
10 select HAVE_PERF_EVENTS
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
21 select GENERIC_CLOCKEVENTS
22 select GENERIC_SMP_IDLE_THREAD
23 select GENERIC_STRNCPY_FROM_USER
24 select GENERIC_STRNLEN_USER
25 select HAVE_MOD_ARCH_SPECIFIC
26 select MODULES_USE_ELF_RELA
27 select ODD_RT_SIGACTION
30 The Alpha is a 64-bit general-purpose processor designed and
31 marketed by the Digital Equipment Corporation of blessed memory,
32 now Hewlett-Packard. The Alpha Linux project has a home page at
33 <http://www.alphalinux.org/>.
42 config RWSEM_GENERIC_SPINLOCK
45 config RWSEM_XCHGADD_ALGORITHM
49 config ARCH_HAS_ILOG2_U32
53 config ARCH_HAS_ILOG2_U64
57 config GENERIC_CALIBRATE_DELAY
65 config ARCH_DMA_ADDR_T_64BIT
68 config NEED_DMA_MAP_STATE
71 config NEED_SG_DMA_LENGTH
74 config GENERIC_ISA_DMA
79 source "kernel/Kconfig.freezer"
87 prompt "Alpha system type"
90 This is the system type of your hardware. A "generic" kernel will
91 run on any supported Alpha system. However, if you configure a
92 kernel for your specific system, it will be faster and smaller.
94 To find out what type of Alpha system you have, you may want to
95 check out the Linux/Alpha FAQ, accessible on the WWW from
96 <http://www.alphalinux.org/>. In summary:
98 Alcor/Alpha-XLT AS 600, AS 500, XL-300, XL-366
99 Alpha-XL XL-233, XL-266
100 AlphaBook1 Alpha laptop
101 Avanti AS 200, AS 205, AS 250, AS 255, AS 300, AS 400
102 Cabriolet AlphaPC64, AlphaPCI64
103 DP264 DP264 / DS20 / ES40 / DS10 / DS10L
104 EB164 EB164 21164 evaluation board
105 EB64+ EB64+ 21064 evaluation board
106 EB66 EB66 21066 evaluation board
107 EB66+ EB66+ 21066 evaluation board
108 Jensen DECpc 150, DEC 2000 models 300, 500
111 Miata Personal Workstation 433/500/600 a/au
112 Marvel AlphaServer ES47 / ES80 / GS1280
114 Noname AXPpci33, UDB (Multia)
115 Noritake AS 1000A, AS 600A, AS 800
117 Rawhide AS 1200, AS 4000, AS 4100
118 Ruffian RPX164-2, AlphaPC164-UX, AlphaPC164-BX
120 Sable AS 2000, AS 2100
123 Titan AlphaServer ES45 / DS25 / DS15
124 Wildfire AlphaServer GS 40/80/160/320
126 If you don't know what to do, choose "generic".
132 A generic kernel will run on all supported Alpha hardware.
135 bool "Alcor/Alpha-XLT"
137 For systems using the Digital ALCOR chipset: 5 chips (4, 64-bit data
138 slices (Data Switch, DSW) - 208-pin PQFP and 1 control (Control, I/O
139 Address, CIA) - a 383 pin plastic PGA). It provides a DRAM
140 controller (256-bit memory bus) and a PCI interface. It also does
141 all the work required to support an external Bcache and to maintain
142 memory coherence when a PCI device DMAs into (or out of) memory.
147 XL-233 and XL-266-based Alpha systems.
152 Dec AlphaBook1/Burns Alpha-based laptops.
154 config ALPHA_AVANTI_CH
157 config ALPHA_CABRIOLET
160 Cabriolet AlphaPC64, AlphaPCI64 systems. Derived from EB64+ but now
161 baby-AT with Flash boot ROM, no on-board SCSI or Ethernet. 3 ISA
162 slots, 4 PCI slots (one pair are on a shared slot), uses plug-in
163 Bcache SIMMs. Requires power supply with 3.3V output.
168 Various 21264 systems with the tsunami core logic chipset.
169 API Networks: 264DP, UP2000(+), CS20;
170 Compaq: DS10(E,L), XP900, XP1000, DS20(E), ES40.
175 EB164 21164 evaluation board from DEC. Uses 21164 and ALCOR. Has
176 ISA and PCI expansion (3 ISA slots, 2 64-bit PCI slots (one is
177 shared with an ISA slot) and 2 32-bit PCI slots. Uses plus-in
178 Bcache SIMMs. I/O sub-system provides SuperI/O (2S, 1P, FD), KBD,
179 MOUSE (PS2 style), RTC/NVRAM. Boot ROM is Flash. PC-AT-sized
180 motherboard. Requires power supply with 3.3V output.
182 config ALPHA_EB64P_CH
188 A Digital DS group board. Uses 21066 or 21066A. I/O sub-system is
189 identical to EB64+. Baby PC-AT size. Runs from standard PC power
190 supply. The EB66 schematic was published as a marketing poster
191 advertising the 21066 as "the first microprocessor in the world with
197 Later variant of the EB66 board.
202 Apparently an obscure OEM single-board computer based on the
203 Typhoon/Tsunami chipset family. Information on it is scanty.
208 DEC PC 150 AXP (aka Jensen): This is a very old Digital system - one
209 of the first-generation Alpha systems. A number of these systems
210 seem to be available on the second- hand market. The Jensen is a
211 floor-standing tower system which originally used a 150MHz 21064 It
212 used programmable logic to interface a 486 EISA I/O bridge to the
218 A technical overview of this board is available at
219 <http://www.unix-ag.org/Linux-Alpha/Architectures/LX164.html>.
224 AlphaServer 2100A-based systems.
229 AlphaServer ES47 / ES80 / GS1280 based on EV7.
234 The Digital PersonalWorkStation (PWS 433a, 433au, 500a, 500au, 600a,
240 AlphaServer 1000-based Alpha systems.
242 config ALPHA_NAUTILUS
245 Alpha systems based on the AMD 751 & ALI 1543C chipsets.
247 config ALPHA_NONAME_CH
250 config ALPHA_NORITAKE
253 AlphaServer 1000A, AlphaServer 600A, and AlphaServer 800-based
265 AlphaServer 1200, AlphaServer 4000 and AlphaServer 4100 machines.
267 <http://www.alphalinux.org/docs/rawhide/4100_install.shtml>.
272 Samsung APC164UX. There is a page on known problems and workarounds
273 at <http://www.alphalinux.org/faq/FAQ-11.html>.
284 Digital AlphaServer 2000 and 2100-based systems.
292 Alpha 11164-based OEM single-board computer.
297 AlphaServer ES45/DS25 SMP based on EV68 and Titan chipset.
299 config ALPHA_WILDFIRE
302 AlphaServer GS 40/80/160/320 SMP based on the EV67 core.
306 # clear all implied options (don't want default values for those):
307 # Most of these machines have ISA slots; not exactly sure which don't,
308 # and this doesn't activate hordes of code, so do it always.
313 Find out whether you have ISA slots on your motherboard. ISA is the
314 name of a bus system, i.e. the way the CPU talks to the other stuff
315 inside your box. Other bus systems are PCI, EISA, MicroChannel
316 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
317 newer boards don't support it. If you have ISA, say Y, otherwise N.
325 depends on !ALPHA_JENSEN
326 select GENERIC_PCI_IOMAP
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.
346 depends on ALPHA_BOOK1 || ALPHA_NONAME_CH
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
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
364 depends on ALPHA_NONAME || ALPHA_EB66 || ALPHA_EB66P || ALPHA_P2K
369 depends on !ALPHA_PRIMO && (ALPHA_NORITAKE || ALPHA_MIKASA) || ALPHA_CABRIOLET || ALPHA_AVANTI_CH || ALPHA_EB64P_CH || ALPHA_XL
374 depends on ALPHA_CABRIOLET || ALPHA_EB64P_CH
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.
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
390 default y if ALPHA_LYNX && !ALPHA_EV5
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
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
402 prompt "EV56 CPU (speed >= 333MHz)?"
403 depends on ALPHA_NORITAKE || ALPHA_PRIMO
406 prompt "EV56 CPU (speed >= 400MHz)?"
407 depends on ALPHA_RAWHIDE
410 bool "EV5 CPU daughtercard (model 5/xxx)?"
411 depends on ALPHA_NORITAKE || ALPHA_MIKASA
413 Say Y if you have an AS 1000 5/xxx or an AS 1000A 5/xxx.
416 bool "EV5 CPU(s) (model 5/xxx)?"
417 depends on ALPHA_SABLE
419 Say Y if you have an AS 2000 5/xxx or an AS 2100 5/xxx.
423 depends on ALPHA_LYNX
428 depends on ALPHA_SABLE || ALPHA_LYNX
433 depends on ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN
438 depends on ALPHA_NAUTILUS || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_DP264 || ALPHA_EIGER || ALPHA_MARVEL
443 depends on ALPHA_SHARK || ALPHA_DP264 || ALPHA_EIGER
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
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.
455 depends on ALPHA_RAWHIDE
460 depends on ALPHA_RX164
463 config ALPHA_IRONGATE
465 depends on ALPHA_NAUTILUS
468 config GENERIC_HWEIGHT
470 default y if !ALPHA_EV67
474 depends on ALPHA_XL || ALPHA_AVANTI_CH
477 Avanti AS 200, AS 205, AS 250, AS 255, AS 300, and AS 400-based
479 <http://www.unix-ag.org/Linux-Alpha/Architectures/Avanti.html>.
481 config ALPHA_BROKEN_IRQ_MASK
483 depends on ALPHA_GENERIC || ALPHA_PC164
488 depends on VGA_CONSOLE && (ALPHA_GENERIC || ALPHA_TITAN || ALPHA_MARVEL || ALPHA_TSUNAMI)
491 Support VGA on an arbitrary hose; needed for several platforms
492 which always have multiple hoses, and whose consoles support it.
496 bool "Run under QEMU emulation"
497 depends on !ALPHA_GENERIC
499 Assume the presence of special features supported by QEMU PALcode
500 that reduce the overhead of system emulation.
502 Generic kernels will auto-detect QEMU. But when building a
503 system-specific kernel, the assumption is that we want to
504 elimiate as many runtime tests as possible.
510 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
512 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
514 There are two different types of booting firmware on Alphas: SRM,
515 which is command line driven, and ARC, which uses menus and arrow
516 keys. Details about the Linux/Alpha booting process are contained in
517 the Linux/Alpha FAQ, accessible on the WWW from
518 <http://www.alphalinux.org/>.
520 The usual way to load Linux on an Alpha machine is to use MILO
521 (a bootloader that lets you pass command line parameters to the
522 kernel just like lilo does for the x86 architecture) which can be
523 loaded either from ARC or can be installed directly as a permanent
524 firmware replacement from floppy (which requires changing a certain
525 jumper on the motherboard). If you want to do either of these, say N
526 here. If MILO doesn't work on your system (true for Jensen
527 motherboards), you can bypass it altogether and boot Linux directly
528 from an SRM console; say Y here in order to do that. Note that you
529 won't be able to boot from an IDE disk using SRM.
535 depends on ALPHA_GENERIC || ALPHA_JENSEN || ALPHA_ALCOR || ALPHA_MIKASA || ALPHA_SABLE || ALPHA_LYNX || ALPHA_NORITAKE || ALPHA_RAWHIDE
538 config ARCH_MAY_HAVE_PC_FDC
542 bool "Symmetric multi-processing support"
543 depends on ALPHA_SABLE || ALPHA_LYNX || ALPHA_RAWHIDE || ALPHA_DP264 || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_GENERIC || ALPHA_SHARK || ALPHA_MARVEL
545 This enables support for systems with more than one CPU. If you have
546 a system with only one CPU, say N. If you have a system with more
549 If you say N here, the kernel will run on uni- and multiprocessor
550 machines, but will use only one CPU of a multiprocessor machine. If
551 you say Y here, the kernel will run on many, but not all,
552 uniprocessor machines. On a uniprocessor machine, the kernel
553 will run faster if you say N here.
555 See also the SMP-HOWTO available at
556 <http://www.tldp.org/docs.html#howto>.
558 If you don't know what to do here, say N.
566 int "Maximum number of CPUs (2-32)"
569 default "32" if ALPHA_GENERIC || ALPHA_MARVEL
570 default "4" if !ALPHA_GENERIC && !ALPHA_MARVEL
572 MARVEL support can handle a maximum of 32 CPUs, all the others
573 with working support have a maximum of 4 CPUs.
575 config ARCH_DISCONTIGMEM_ENABLE
576 bool "Discontiguous Memory Support"
578 Say Y to support efficient handling of discontiguous physical memory,
579 for architectures which are either NUMA (Non-Uniform Memory Access)
580 or have huge holes in the physical address space for other reasons.
581 See <file:Documentation/vm/numa> for more.
586 bool "NUMA Support (EXPERIMENTAL)"
587 depends on DISCONTIGMEM && BROKEN
589 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
590 Access). This option is for configuring high-end multiprocessor
591 server machines. If in doubt, say N.
594 bool "Use WTINT" if ALPHA_SRM || ALPHA_GENERIC
595 default y if ALPHA_QEMU
596 default n if ALPHA_EV5 || ALPHA_EV56 || (ALPHA_EV4 && !ALPHA_LCA)
597 default n if !ALPHA_SRM && !ALPHA_GENERIC
600 The Wait for Interrupt (WTINT) PALcall attempts to place the CPU
601 to sleep until the next interrupt. This may reduce the power
602 consumed, and the heat produced by the computer. However, it has
603 the side effect of making the cycle counter unreliable as a timing
604 device across the sleep.
606 For emulation under QEMU, definitely say Y here, as we have other
607 mechanisms for measuring time than the cycle counter.
609 For EV4 (but not LCA), EV5 and EV56 systems, or for systems running
610 MILO, sleep mode is not supported so you might as well say N here.
612 For SMP systems we cannot use the cycle counter for timing anyway,
613 so you might as well say Y here.
620 depends on NEED_MULTIPLE_NODES
622 # LARGE_VMALLOC is racy, if you *really* need it then fix it first
623 config ALPHA_LARGE_VMALLOC
626 Process creation and other aspects of virtual memory management can
627 be streamlined if we restrict the kernel to one PGD for all vmalloc
628 allocations. This equates to about 8GB.
630 Under normal circumstances, this is so far and above what is needed
631 as to be laughable. However, there are certain applications (such
632 as benchmark-grade in-kernel web serving) that can make use of as
633 much vmalloc space as is available.
635 Say N unless you know you need gobs and gobs of vmalloc space.
637 config VERBOSE_MCHECK
638 bool "Verbose Machine Checks"
640 config VERBOSE_MCHECK_ON
641 int "Verbose Printing Mode (0=off, 1=on, 2=all)"
642 depends on VERBOSE_MCHECK
645 This option allows the default printing mode to be set, and then
646 possibly overridden by a boot command argument.
648 For example, if one wanted the option of printing verbose
649 machine checks, but wanted the default to be as if verbose
650 machine check printing was turned off, then one would choose
651 the printing mode to be 0. Then, upon reboot, one could add
652 the boot command line "verbose_mcheck=1" to get the normal
653 verbose machine check printing, or "verbose_mcheck=2" to get
654 the maximum information available.
656 Take the default (1) unless you want more control or more info.
659 prompt "Timer interrupt frequency (HZ)?"
660 default HZ_128 if ALPHA_QEMU
661 default HZ_1200 if ALPHA_RAWHIDE
664 The frequency at which timer interrupts occur. A high frequency
665 minimizes latency, whereas a low frequency minimizes overhead of
666 process accounting. The later effect is especially significant
667 when being run under QEMU.
669 Note that some Alpha hardware cannot change the interrupt frequency
670 of the timer. If unsure, say 1024 (or 1200 for Rawhide).
690 default 128 if HZ_128
691 default 256 if HZ_256
692 default 1200 if HZ_1200
695 source "drivers/pci/Kconfig"
696 source "drivers/eisa/Kconfig"
698 source "drivers/pcmcia/Kconfig"
701 tristate "SRM environment through procfs"
704 If you enable this option, a subdirectory inside /proc called
705 /proc/srm_environment will give you access to the all important
706 SRM environment variables (those which have a name) and also
707 to all others (by their internal number).
709 SRM is something like a BIOS for Alpha machines. There are some
710 other such BIOSes, like AlphaBIOS, which this driver cannot
711 support (hey, that's not SRM!).
713 Despite the fact that this driver doesn't work on all Alphas (but
714 only on those which have SRM as their firmware), it's save to
715 build it even if your particular machine doesn't know about SRM
716 (or if you intend to compile a generic kernel). It will simply
717 not create those subdirectory in /proc (and give you some warning,
720 This driver is also available as a module and will be called
723 source "fs/Kconfig.binfmt"
729 source "drivers/Kconfig"
733 source "arch/alpha/Kconfig.debug"
735 # DUMMY_CONSOLE may be defined in drivers/video/console/Kconfig
736 # but we also need it if VGA_HOSE is set
742 source "security/Kconfig"
744 source "crypto/Kconfig"