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
20 select GENERIC_CLOCKEVENTS
21 select GENERIC_SMP_IDLE_THREAD
22 select GENERIC_STRNCPY_FROM_USER
23 select GENERIC_STRNLEN_USER
24 select HAVE_MOD_ARCH_SPECIFIC
25 select MODULES_USE_ELF_RELA
26 select ODD_RT_SIGACTION
29 The Alpha is a 64-bit general-purpose processor designed and
30 marketed by the Digital Equipment Corporation of blessed memory,
31 now Hewlett-Packard. The Alpha Linux project has a home page at
32 <http://www.alphalinux.org/>.
41 config RWSEM_GENERIC_SPINLOCK
44 config RWSEM_XCHGADD_ALGORITHM
48 config ARCH_HAS_ILOG2_U32
52 config ARCH_HAS_ILOG2_U64
56 config GENERIC_CALIBRATE_DELAY
64 config ARCH_DMA_ADDR_T_64BIT
67 config NEED_DMA_MAP_STATE
70 config NEED_SG_DMA_LENGTH
73 config GENERIC_ISA_DMA
78 source "kernel/Kconfig.freezer"
84 prompt "Alpha system type"
87 This is the system type of your hardware. A "generic" kernel will
88 run on any supported Alpha system. However, if you configure a
89 kernel for your specific system, it will be faster and smaller.
91 To find out what type of Alpha system you have, you may want to
92 check out the Linux/Alpha FAQ, accessible on the WWW from
93 <http://www.alphalinux.org/>. In summary:
95 Alcor/Alpha-XLT AS 600, AS 500, XL-300, XL-366
96 Alpha-XL XL-233, XL-266
97 AlphaBook1 Alpha laptop
98 Avanti AS 200, AS 205, AS 250, AS 255, AS 300, AS 400
99 Cabriolet AlphaPC64, AlphaPCI64
100 DP264 DP264 / DS20 / ES40 / DS10 / DS10L
101 EB164 EB164 21164 evaluation board
102 EB64+ EB64+ 21064 evaluation board
103 EB66 EB66 21066 evaluation board
104 EB66+ EB66+ 21066 evaluation board
105 Jensen DECpc 150, DEC 2000 models 300, 500
108 Miata Personal Workstation 433/500/600 a/au
109 Marvel AlphaServer ES47 / ES80 / GS1280
111 Noname AXPpci33, UDB (Multia)
112 Noritake AS 1000A, AS 600A, AS 800
114 Rawhide AS 1200, AS 4000, AS 4100
115 Ruffian RPX164-2, AlphaPC164-UX, AlphaPC164-BX
117 Sable AS 2000, AS 2100
120 Titan AlphaServer ES45 / DS25 / DS15
121 Wildfire AlphaServer GS 40/80/160/320
123 If you don't know what to do, choose "generic".
129 A generic kernel will run on all supported Alpha hardware.
132 bool "Alcor/Alpha-XLT"
134 For systems using the Digital ALCOR chipset: 5 chips (4, 64-bit data
135 slices (Data Switch, DSW) - 208-pin PQFP and 1 control (Control, I/O
136 Address, CIA) - a 383 pin plastic PGA). It provides a DRAM
137 controller (256-bit memory bus) and a PCI interface. It also does
138 all the work required to support an external Bcache and to maintain
139 memory coherence when a PCI device DMAs into (or out of) memory.
144 XL-233 and XL-266-based Alpha systems.
149 Dec AlphaBook1/Burns Alpha-based laptops.
151 config ALPHA_AVANTI_CH
154 config ALPHA_CABRIOLET
157 Cabriolet AlphaPC64, AlphaPCI64 systems. Derived from EB64+ but now
158 baby-AT with Flash boot ROM, no on-board SCSI or Ethernet. 3 ISA
159 slots, 4 PCI slots (one pair are on a shared slot), uses plug-in
160 Bcache SIMMs. Requires power supply with 3.3V output.
165 Various 21264 systems with the tsunami core logic chipset.
166 API Networks: 264DP, UP2000(+), CS20;
167 Compaq: DS10(E,L), XP900, XP1000, DS20(E), ES40.
172 EB164 21164 evaluation board from DEC. Uses 21164 and ALCOR. Has
173 ISA and PCI expansion (3 ISA slots, 2 64-bit PCI slots (one is
174 shared with an ISA slot) and 2 32-bit PCI slots. Uses plus-in
175 Bcache SIMMs. I/O sub-system provides SuperI/O (2S, 1P, FD), KBD,
176 MOUSE (PS2 style), RTC/NVRAM. Boot ROM is Flash. PC-AT-sized
177 motherboard. Requires power supply with 3.3V output.
179 config ALPHA_EB64P_CH
185 A Digital DS group board. Uses 21066 or 21066A. I/O sub-system is
186 identical to EB64+. Baby PC-AT size. Runs from standard PC power
187 supply. The EB66 schematic was published as a marketing poster
188 advertising the 21066 as "the first microprocessor in the world with
194 Later variant of the EB66 board.
199 Apparently an obscure OEM single-board computer based on the
200 Typhoon/Tsunami chipset family. Information on it is scanty.
205 DEC PC 150 AXP (aka Jensen): This is a very old Digital system - one
206 of the first-generation Alpha systems. A number of these systems
207 seem to be available on the second- hand market. The Jensen is a
208 floor-standing tower system which originally used a 150MHz 21064 It
209 used programmable logic to interface a 486 EISA I/O bridge to the
215 A technical overview of this board is available at
216 <http://www.unix-ag.org/Linux-Alpha/Architectures/LX164.html>.
221 AlphaServer 2100A-based systems.
226 AlphaServer ES47 / ES80 / GS1280 based on EV7.
231 The Digital PersonalWorkStation (PWS 433a, 433au, 500a, 500au, 600a,
237 AlphaServer 1000-based Alpha systems.
239 config ALPHA_NAUTILUS
242 Alpha systems based on the AMD 751 & ALI 1543C chipsets.
244 config ALPHA_NONAME_CH
247 config ALPHA_NORITAKE
250 AlphaServer 1000A, AlphaServer 600A, and AlphaServer 800-based
262 AlphaServer 1200, AlphaServer 4000 and AlphaServer 4100 machines.
264 <http://www.alphalinux.org/docs/rawhide/4100_install.shtml>.
269 Samsung APC164UX. There is a page on known problems and workarounds
270 at <http://www.alphalinux.org/faq/FAQ-11.html>.
281 Digital AlphaServer 2000 and 2100-based systems.
289 Alpha 11164-based OEM single-board computer.
294 AlphaServer ES45/DS25 SMP based on EV68 and Titan chipset.
296 config ALPHA_WILDFIRE
299 AlphaServer GS 40/80/160/320 SMP based on the EV67 core.
303 # clear all implied options (don't want default values for those):
304 # Most of these machines have ISA slots; not exactly sure which don't,
305 # and this doesn't activate hordes of code, so do it always.
310 Find out whether you have ISA slots on your motherboard. ISA is the
311 name of a bus system, i.e. the way the CPU talks to the other stuff
312 inside your box. Other bus systems are PCI, EISA, MicroChannel
313 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
314 newer boards don't support it. If you have ISA, say Y, otherwise N.
322 depends on !ALPHA_JENSEN
323 select GENERIC_PCI_IOMAP
326 Find out whether you have a PCI motherboard. PCI is the name of a
327 bus system, i.e. the way the CPU talks to the other stuff inside
328 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
329 VESA. If you have PCI, say Y, otherwise N.
343 depends on ALPHA_BOOK1 || ALPHA_NONAME_CH
346 The AXPpci33 (aka NoName), is based on the EB66 (includes the Multia
347 UDB). This design was produced by Digital's Technical OEM (TOEM)
348 group. It uses the 21066 processor running at 166MHz or 233MHz. It
349 is a baby-AT size, and runs from a standard PC power supply. It has
350 5 ISA slots and 3 PCI slots (one pair are a shared slot). There are
351 2 versions, with either PS/2 or large DIN connectors for the
356 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
357 default y if !ALPHA_LYNX
361 depends on ALPHA_NONAME || ALPHA_EB66 || ALPHA_EB66P || ALPHA_P2K
366 depends on !ALPHA_PRIMO && (ALPHA_NORITAKE || ALPHA_MIKASA) || ALPHA_CABRIOLET || ALPHA_AVANTI_CH || ALPHA_EB64P_CH || ALPHA_XL
371 depends on ALPHA_CABRIOLET || ALPHA_EB64P_CH
374 Uses 21064 or 21064A and APECs. Has ISA and PCI expansion (3 ISA,
375 2 PCI, one pair are on a shared slot). Supports 36-bit DRAM SIMs.
376 ISA bus generated by Intel SaturnI/O PCI-ISA bridge. On-board SCSI
377 (NCR 810 on PCI) Ethernet (Digital 21040), KBD, MOUSE (PS2 style),
378 SuperI/O (2S, 1P, FD), RTC/NVRAM. Boot ROM is EPROM. PC-AT size.
379 Runs from standard PC power supply.
382 bool "EV5 CPU(s) (model 5/xxx)?" if ALPHA_LYNX
383 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 default y if ALPHA_LYNX && !ALPHA_EV5
391 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 bool "EV56 CPU (speed >= 366MHz)?" if ALPHA_ALCOR
396 default y if ALPHA_RX164 || ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN || ALPHA_PC164 || ALPHA_TAKARA
399 prompt "EV56 CPU (speed >= 333MHz)?"
400 depends on ALPHA_NORITAKE || ALPHA_PRIMO
403 prompt "EV56 CPU (speed >= 400MHz)?"
404 depends on ALPHA_RAWHIDE
407 bool "EV5 CPU daughtercard (model 5/xxx)?"
408 depends on ALPHA_NORITAKE || ALPHA_MIKASA
410 Say Y if you have an AS 1000 5/xxx or an AS 1000A 5/xxx.
413 bool "EV5 CPU(s) (model 5/xxx)?"
414 depends on ALPHA_SABLE
416 Say Y if you have an AS 2000 5/xxx or an AS 2100 5/xxx.
420 depends on ALPHA_LYNX
425 depends on ALPHA_SABLE || ALPHA_LYNX
430 depends on ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN
435 depends on ALPHA_NAUTILUS || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_DP264 || ALPHA_EIGER || ALPHA_MARVEL
440 depends on ALPHA_SHARK || ALPHA_DP264 || ALPHA_EIGER
444 bool "EV67 (or later) CPU (speed > 600MHz)?" if ALPHA_DP264 || ALPHA_EIGER
445 default y if ALPHA_NAUTILUS || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_MARVEL
447 Is this a machine based on the EV67 core? If in doubt, select N here
448 and the machine will be treated as an EV6.
452 depends on ALPHA_RAWHIDE
457 depends on ALPHA_RX164
460 config ALPHA_IRONGATE
462 depends on ALPHA_NAUTILUS
465 config GENERIC_HWEIGHT
467 default y if !ALPHA_EV67
471 depends on ALPHA_XL || ALPHA_AVANTI_CH
474 Avanti AS 200, AS 205, AS 250, AS 255, AS 300, and AS 400-based
476 <http://www.unix-ag.org/Linux-Alpha/Architectures/Avanti.html>.
478 config ALPHA_BROKEN_IRQ_MASK
480 depends on ALPHA_GENERIC || ALPHA_PC164
485 depends on VGA_CONSOLE && (ALPHA_GENERIC || ALPHA_TITAN || ALPHA_MARVEL || ALPHA_TSUNAMI)
488 Support VGA on an arbitrary hose; needed for several platforms
489 which always have multiple hoses, and whose consoles support it.
493 bool "Run under QEMU emulation"
494 depends on !ALPHA_GENERIC
496 Assume the presence of special features supported by QEMU PALcode
497 that reduce the overhead of system emulation.
499 Generic kernels will auto-detect QEMU. But when building a
500 system-specific kernel, the assumption is that we want to
501 elimiate as many runtime tests as possible.
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
509 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
511 There are two different types of booting firmware on Alphas: SRM,
512 which is command line driven, and ARC, which uses menus and arrow
513 keys. Details about the Linux/Alpha booting process are contained in
514 the Linux/Alpha FAQ, accessible on the WWW from
515 <http://www.alphalinux.org/>.
517 The usual way to load Linux on an Alpha machine is to use MILO
518 (a bootloader that lets you pass command line parameters to the
519 kernel just like lilo does for the x86 architecture) which can be
520 loaded either from ARC or can be installed directly as a permanent
521 firmware replacement from floppy (which requires changing a certain
522 jumper on the motherboard). If you want to do either of these, say N
523 here. If MILO doesn't work on your system (true for Jensen
524 motherboards), you can bypass it altogether and boot Linux directly
525 from an SRM console; say Y here in order to do that. Note that you
526 won't be able to boot from an IDE disk using SRM.
532 depends on ALPHA_GENERIC || ALPHA_JENSEN || ALPHA_ALCOR || ALPHA_MIKASA || ALPHA_SABLE || ALPHA_LYNX || ALPHA_NORITAKE || ALPHA_RAWHIDE
535 config ARCH_MAY_HAVE_PC_FDC
539 bool "Symmetric multi-processing support"
540 depends on ALPHA_SABLE || ALPHA_LYNX || ALPHA_RAWHIDE || ALPHA_DP264 || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_GENERIC || ALPHA_SHARK || ALPHA_MARVEL
542 This enables support for systems with more than one CPU. If you have
543 a system with only one CPU, say N. If you have a system with more
546 If you say N here, the kernel will run on uni- 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 uniprocessor machines. On a uniprocessor 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"
575 Say Y to support efficient handling of discontiguous physical memory,
576 for architectures which are either NUMA (Non-Uniform Memory Access)
577 or have huge holes in the physical address space for other reasons.
578 See <file:Documentation/vm/numa> for more.
583 bool "NUMA Support (EXPERIMENTAL)"
584 depends on DISCONTIGMEM && BROKEN
586 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
587 Access). This option is for configuring high-end multiprocessor
588 server machines. If in doubt, say N.
591 bool "Use WTINT" if ALPHA_SRM || ALPHA_GENERIC
592 default y if ALPHA_QEMU
593 default n if ALPHA_EV5 || ALPHA_EV56 || (ALPHA_EV4 && !ALPHA_LCA)
594 default n if !ALPHA_SRM && !ALPHA_GENERIC
597 The Wait for Interrupt (WTINT) PALcall attempts to place the CPU
598 to sleep until the next interrupt. This may reduce the power
599 consumed, and the heat produced by the computer. However, it has
600 the side effect of making the cycle counter unreliable as a timing
601 device across the sleep.
603 For emulation under QEMU, definitely say Y here, as we have other
604 mechanisms for measuring time than the cycle counter.
606 For EV4 (but not LCA), EV5 and EV56 systems, or for systems running
607 MILO, sleep mode is not supported so you might as well say N here.
609 For SMP systems we cannot use the cycle counter for timing anyway,
610 so you might as well say Y here.
617 depends on NEED_MULTIPLE_NODES
619 # LARGE_VMALLOC is racy, if you *really* need it then fix it first
620 config ALPHA_LARGE_VMALLOC
623 Process creation and other aspects of virtual memory management can
624 be streamlined if we restrict the kernel to one PGD for all vmalloc
625 allocations. This equates to about 8GB.
627 Under normal circumstances, this is so far and above what is needed
628 as to be laughable. However, there are certain applications (such
629 as benchmark-grade in-kernel web serving) that can make use of as
630 much vmalloc space as is available.
632 Say N unless you know you need gobs and gobs of vmalloc space.
634 config VERBOSE_MCHECK
635 bool "Verbose Machine Checks"
637 config VERBOSE_MCHECK_ON
638 int "Verbose Printing Mode (0=off, 1=on, 2=all)"
639 depends on VERBOSE_MCHECK
642 This option allows the default printing mode to be set, and then
643 possibly overridden by a boot command argument.
645 For example, if one wanted the option of printing verbose
646 machine checks, but wanted the default to be as if verbose
647 machine check printing was turned off, then one would choose
648 the printing mode to be 0. Then, upon reboot, one could add
649 the boot command line "verbose_mcheck=1" to get the normal
650 verbose machine check printing, or "verbose_mcheck=2" to get
651 the maximum information available.
653 Take the default (1) unless you want more control or more info.
656 prompt "Timer interrupt frequency (HZ)?"
657 default HZ_128 if ALPHA_QEMU
658 default HZ_1200 if ALPHA_RAWHIDE
661 The frequency at which timer interrupts occur. A high frequency
662 minimizes latency, whereas a low frequency minimizes overhead of
663 process accounting. The later effect is especially significant
664 when being run under QEMU.
666 Note that some Alpha hardware cannot change the interrupt frequency
667 of the timer. If unsure, say 1024 (or 1200 for Rawhide).
687 default 128 if HZ_128
688 default 256 if HZ_256
689 default 1200 if HZ_1200
692 source "drivers/pci/Kconfig"
693 source "drivers/eisa/Kconfig"
695 source "drivers/pcmcia/Kconfig"
698 tristate "SRM environment through procfs"
701 If you enable this option, a subdirectory inside /proc called
702 /proc/srm_environment will give you access to the all important
703 SRM environment variables (those which have a name) and also
704 to all others (by their internal number).
706 SRM is something like a BIOS for Alpha machines. There are some
707 other such BIOSes, like AlphaBIOS, which this driver cannot
708 support (hey, that's not SRM!).
710 Despite the fact that this driver doesn't work on all Alphas (but
711 only on those which have SRM as their firmware), it's save to
712 build it even if your particular machine doesn't know about SRM
713 (or if you intend to compile a generic kernel). It will simply
714 not create those subdirectory in /proc (and give you some warning,
717 This driver is also available as a module and will be called
720 source "fs/Kconfig.binfmt"
726 source "drivers/Kconfig"
730 source "arch/alpha/Kconfig.debug"
732 # DUMMY_CONSOLE may be defined in drivers/video/console/Kconfig
733 # but we also need it if VGA_HOSE is set
739 source "security/Kconfig"
741 source "crypto/Kconfig"