arch/alpha/Kconfig

   1 config ALPHA
   2         bool
   3         default y
   4         select HAVE_AOUT
   5         select HAVE_IDE
   6         select HAVE_OPROFILE
   7         select HAVE_PCSPKR_PLATFORM
   8         select HAVE_PERF_EVENTS
   9         select HAVE_DMA_ATTRS
  10         select HAVE_GENERIC_HARDIRQS
  11         select VIRT_TO_BUS
  12         select GENERIC_IRQ_PROBE
  13         select AUTO_IRQ_AFFINITY if SMP
  14         select GENERIC_IRQ_SHOW
  15         select ARCH_WANT_OPTIONAL_GPIOLIB
  16         select ARCH_WANT_IPC_PARSE_VERSION
  17         select ARCH_HAVE_NMI_SAFE_CMPXCHG
  18         select GENERIC_SMP_IDLE_THREAD
  19         select GENERIC_CMOS_UPDATE
  20         select GENERIC_STRNCPY_FROM_USER
  21         select GENERIC_STRNLEN_USER
  22         select HAVE_MOD_ARCH_SPECIFIC
  23         select MODULES_USE_ELF_RELA
  24         select ODD_RT_SIGACTION
  25         select OLD_SIGSUSPEND
  26         help
  27           The Alpha is a 64-bit general-purpose processor designed and
  28           marketed by the Digital Equipment Corporation of blessed memory,
  29           now Hewlett-Packard.  The Alpha Linux project has a home page at
  30           <http://www.alphalinux.org/>.
  31
  32 config 64BIT
  33         def_bool y
  34
  35 config MMU
  36         bool
  37         default y
  38
  39 config RWSEM_GENERIC_SPINLOCK
  40         bool
  41
  42 config RWSEM_XCHGADD_ALGORITHM
  43         bool
  44         default y
  45
  46 config ARCH_HAS_ILOG2_U32
  47         bool
  48         default n
  49
  50 config ARCH_HAS_ILOG2_U64
  51         bool
  52         default n
  53
  54 config GENERIC_CALIBRATE_DELAY
  55         bool
  56         default y
  57
  58 config ZONE_DMA
  59         bool
  60         default y
  61
  62 config ARCH_DMA_ADDR_T_64BIT
  63         def_bool y
  64
  65 config NEED_DMA_MAP_STATE
  66        def_bool y
  67
  68 config NEED_SG_DMA_LENGTH
  69         def_bool y
  70
  71 config GENERIC_ISA_DMA
  72         bool
  73         default y
  74
  75 source "init/Kconfig"
  76 source "kernel/Kconfig.freezer"
  77
  78
  79 menu "System setup"
  80
  81 choice
  82         prompt "Alpha system type"
  83         default ALPHA_GENERIC
  84         ---help---
  85           This is the system type of your hardware.  A "generic" kernel will
  86           run on any supported Alpha system. However, if you configure a
  87           kernel for your specific system, it will be faster and smaller.
  88
  89           To find out what type of Alpha system you have, you may want to
  90           check out the Linux/Alpha FAQ, accessible on the WWW from
  91           <http://www.alphalinux.org/>. In summary:
  92
  93           Alcor/Alpha-XLT     AS 600, AS 500, XL-300, XL-366
  94           Alpha-XL            XL-233, XL-266
  95           AlphaBook1          Alpha laptop
  96           Avanti              AS 200, AS 205, AS 250, AS 255, AS 300, AS 400
  97           Cabriolet           AlphaPC64, AlphaPCI64
  98           DP264               DP264 / DS20 / ES40 / DS10 / DS10L
  99           EB164               EB164 21164 evaluation board
 100           EB64+               EB64+ 21064 evaluation board
 101           EB66                EB66 21066 evaluation board
 102           EB66+               EB66+ 21066 evaluation board
 103           Jensen              DECpc 150, DEC 2000 models 300, 500
 104           LX164               AlphaPC164-LX
 105           Lynx                AS 2100A
 106           Miata               Personal Workstation 433/500/600 a/au
 107           Marvel              AlphaServer ES47 / ES80 / GS1280
 108           Mikasa              AS 1000
 109           Noname              AXPpci33, UDB (Multia)
 110           Noritake            AS 1000A, AS 600A, AS 800
 111           PC164               AlphaPC164
 112           Rawhide             AS 1200, AS 4000, AS 4100
 113           Ruffian             RPX164-2, AlphaPC164-UX, AlphaPC164-BX
 114           SX164               AlphaPC164-SX
 115           Sable               AS 2000, AS 2100
 116           Shark               DS 20L
 117           Takara              Takara (OEM)
 118           Titan               AlphaServer ES45 / DS25 / DS15
 119           Wildfire            AlphaServer GS 40/80/160/320
 120
 121           If you don't know what to do, choose "generic".
 122
 123 config ALPHA_GENERIC
 124         bool "Generic"
 125         depends on TTY
 126         help
 127           A generic kernel will run on all supported Alpha hardware.
 128
 129 config ALPHA_ALCOR
 130         bool "Alcor/Alpha-XLT"
 131         help
 132           For systems using the Digital ALCOR chipset: 5 chips (4, 64-bit data
 133           slices (Data Switch, DSW) - 208-pin PQFP and 1 control (Control, I/O
 134           Address, CIA) - a 383 pin plastic PGA).  It provides a DRAM
 135           controller (256-bit memory bus) and a PCI interface.  It also does
 136           all the work required to support an external Bcache and to maintain
 137           memory coherence when a PCI device DMAs into (or out of) memory.
 138
 139 config ALPHA_XL
 140         bool "Alpha-XL"
 141         help
 142           XL-233 and XL-266-based Alpha systems.
 143
 144 config ALPHA_BOOK1
 145         bool "AlphaBook1"
 146         help
 147           Dec AlphaBook1/Burns Alpha-based laptops.
 148
 149 config ALPHA_AVANTI_CH
 150         bool "Avanti"
 151
 152 config ALPHA_CABRIOLET
 153         bool "Cabriolet"
 154         help
 155           Cabriolet AlphaPC64, AlphaPCI64 systems.  Derived from EB64+ but now
 156           baby-AT with Flash boot ROM, no on-board SCSI or Ethernet. 3 ISA
 157           slots, 4 PCI slots (one pair are on a shared slot), uses plug-in
 158           Bcache SIMMs.  Requires power supply with 3.3V output.
 159
 160 config ALPHA_DP264
 161         bool "DP264"
 162         help
 163           Various 21264 systems with the tsunami core logic chipset.
 164           API Networks: 264DP, UP2000(+), CS20;
 165           Compaq: DS10(E,L), XP900, XP1000, DS20(E), ES40.
 166
 167 config ALPHA_EB164
 168         bool "EB164"
 169         help
 170           EB164 21164 evaluation board from DEC.  Uses 21164 and ALCOR.  Has
 171           ISA and PCI expansion (3 ISA slots, 2 64-bit PCI slots (one is
 172           shared with an ISA slot) and 2 32-bit PCI slots.  Uses plus-in
 173           Bcache SIMMs. I/O sub-system provides SuperI/O (2S, 1P, FD), KBD,
 174           MOUSE (PS2 style), RTC/NVRAM.  Boot ROM is Flash.  PC-AT-sized
 175           motherboard.  Requires power supply with 3.3V output.
 176
 177 config ALPHA_EB64P_CH
 178         bool "EB64+"
 179
 180 config ALPHA_EB66
 181         bool "EB66"
 182         help
 183           A Digital DS group board.  Uses 21066 or 21066A.  I/O sub-system is
 184           identical to EB64+.  Baby PC-AT size.  Runs from standard PC power
 185           supply.  The EB66 schematic was published as a marketing poster
 186           advertising the 21066 as "the first microprocessor in the world with
 187           embedded PCI".
 188
 189 config ALPHA_EB66P
 190         bool "EB66+"
 191         help
 192           Later variant of the EB66 board.
 193
 194 config ALPHA_EIGER
 195         bool "Eiger"
 196         help
 197           Apparently an obscure OEM single-board computer based on the
 198           Typhoon/Tsunami chipset family. Information on it is scanty.
 199
 200 config ALPHA_JENSEN
 201         bool "Jensen"
 202         help
 203           DEC PC 150 AXP (aka Jensen): This is a very old Digital system - one
 204           of the first-generation Alpha systems. A number of these systems
 205           seem to be available on the second- hand market. The Jensen is a
 206           floor-standing tower system which originally used a 150MHz 21064 It
 207           used programmable logic to interface a 486 EISA I/O bridge to the
 208           CPU.
 209
 210 config ALPHA_LX164
 211         bool "LX164"
 212         help
 213           A technical overview of this board is available at
 214           <http://www.unix-ag.org/Linux-Alpha/Architectures/LX164.html>.
 215
 216 config ALPHA_LYNX
 217         bool "Lynx"
 218         help
 219           AlphaServer 2100A-based systems.
 220
 221 config ALPHA_MARVEL
 222         bool "Marvel"
 223         help
 224           AlphaServer ES47 / ES80 / GS1280 based on EV7.
 225
 226 config ALPHA_MIATA
 227         bool "Miata"
 228         help
 229           The Digital PersonalWorkStation (PWS 433a, 433au, 500a, 500au, 600a,
 230           or 600au).
 231
 232 config ALPHA_MIKASA
 233         bool "Mikasa"
 234         help
 235           AlphaServer 1000-based Alpha systems.
 236
 237 config ALPHA_NAUTILUS
 238         bool "Nautilus"
 239         help
 240           Alpha systems based on the AMD 751 & ALI 1543C chipsets.
 241
 242 config ALPHA_NONAME_CH
 243         bool "Noname"
 244
 245 config ALPHA_NORITAKE
 246         bool "Noritake"
 247         help
 248           AlphaServer 1000A, AlphaServer 600A, and AlphaServer 800-based
 249           systems.
 250
 251 config ALPHA_PC164
 252         bool "PC164"
 253
 254 config ALPHA_P2K
 255         bool "Platform2000"
 256
 257 config ALPHA_RAWHIDE
 258         bool "Rawhide"
 259         help
 260           AlphaServer 1200, AlphaServer 4000 and AlphaServer 4100 machines.
 261           See HOWTO at
 262           <http://www.alphalinux.org/docs/rawhide/4100_install.shtml>.
 263
 264 config ALPHA_RUFFIAN
 265         bool "Ruffian"
 266         help
 267           Samsung APC164UX.  There is a page on known problems and workarounds
 268           at <http://www.alphalinux.org/faq/FAQ-11.html>.
 269
 270 config ALPHA_RX164
 271         bool "RX164"
 272
 273 config ALPHA_SX164
 274         bool "SX164"
 275
 276 config ALPHA_SABLE
 277         bool "Sable"
 278         help
 279           Digital AlphaServer 2000 and 2100-based systems.
 280
 281 config ALPHA_SHARK
 282         bool "Shark"
 283
 284 config ALPHA_TAKARA
 285         bool "Takara"
 286         help
 287           Alpha 11164-based OEM single-board computer.
 288
 289 config ALPHA_TITAN
 290         bool "Titan"
 291         help
 292           AlphaServer ES45/DS25 SMP based on EV68 and Titan chipset.
 293
 294 config ALPHA_WILDFIRE
 295         bool "Wildfire"
 296         help
 297           AlphaServer GS 40/80/160/320 SMP based on the EV67 core.
 298
 299 endchoice
 300
 301 # clear all implied options (don't want default values for those):
 302 # Most of these machines have ISA slots; not exactly sure which don't,
 303 # and this doesn't activate hordes of code, so do it always.
 304 config ISA
 305         bool
 306         default y
 307         help
 308           Find out whether you have ISA slots on your motherboard.  ISA is the
 309           name of a bus system, i.e. the way the CPU talks to the other stuff
 310           inside your box.  Other bus systems are PCI, EISA, MicroChannel
 311           (MCA) or VESA.  ISA is an older system, now being displaced by PCI;
 312           newer boards don't support it.  If you have ISA, say Y, otherwise N.
 313
 314 config ISA_DMA_API
 315         bool
 316         default y
 317
 318 config PCI
 319         bool
 320         depends on !ALPHA_JENSEN
 321         select GENERIC_PCI_IOMAP
 322         default y
 323         help
 324           Find out whether you have a PCI motherboard. PCI is the name of a
 325           bus system, i.e. the way the CPU talks to the other stuff inside
 326           your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
 327           VESA. If you have PCI, say Y, otherwise N.
 328
 329 config PCI_DOMAINS
 330         bool
 331         default y
 332
 333 config PCI_SYSCALL
 334         def_bool PCI
 335
 336 config IOMMU_HELPER
 337         def_bool PCI
 338
 339 config ALPHA_NONAME
 340         bool
 341         depends on ALPHA_BOOK1 || ALPHA_NONAME_CH
 342         default y
 343         help
 344           The AXPpci33 (aka NoName), is based on the EB66 (includes the Multia
 345           UDB).  This design was produced by Digital's Technical OEM (TOEM)
 346           group. It uses the 21066 processor running at 166MHz or 233MHz. It
 347           is a baby-AT size, and runs from a standard PC power supply. It has
 348           5 ISA slots and 3 PCI slots (one pair are a shared slot). There are
 349           2 versions, with either PS/2 or large DIN connectors for the
 350           keyboard.
 351
 352 config ALPHA_EV4
 353         bool
 354         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
 355         default y if !ALPHA_LYNX
 356
 357 config ALPHA_LCA
 358         bool
 359         depends on ALPHA_NONAME || ALPHA_EB66 || ALPHA_EB66P || ALPHA_P2K
 360         default y
 361
 362 config ALPHA_APECS
 363         bool
 364         depends on !ALPHA_PRIMO && (ALPHA_NORITAKE || ALPHA_MIKASA) || ALPHA_CABRIOLET || ALPHA_AVANTI_CH || ALPHA_EB64P_CH || ALPHA_XL
 365         default y
 366
 367 config ALPHA_EB64P
 368         bool
 369         depends on ALPHA_CABRIOLET || ALPHA_EB64P_CH
 370         default y
 371         help
 372           Uses 21064 or 21064A and APECs.  Has ISA and PCI expansion (3 ISA,
 373           2 PCI, one pair are on a shared slot). Supports 36-bit DRAM SIMs.
 374           ISA bus generated by Intel SaturnI/O PCI-ISA bridge. On-board SCSI
 375           (NCR 810 on PCI) Ethernet (Digital 21040), KBD, MOUSE (PS2 style),
 376           SuperI/O (2S, 1P, FD), RTC/NVRAM. Boot ROM is EPROM.  PC-AT size.
 377           Runs from standard PC power supply.
 378
 379 config ALPHA_EV5
 380         bool "EV5 CPU(s) (model 5/xxx)?" if ALPHA_LYNX
 381         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
 382
 383 config ALPHA_EV4
 384         bool
 385         default y if ALPHA_LYNX && !ALPHA_EV5
 386
 387 config ALPHA_CIA
 388         bool
 389         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
 390         default y
 391
 392 config ALPHA_EV56
 393         bool "EV56 CPU (speed >= 366MHz)?" if ALPHA_ALCOR
 394         default y if ALPHA_RX164 || ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN || ALPHA_PC164 || ALPHA_TAKARA
 395
 396 config ALPHA_EV56
 397         prompt "EV56 CPU (speed >= 333MHz)?"
 398         depends on ALPHA_NORITAKE || ALPHA_PRIMO
 399
 400 config ALPHA_EV56
 401         prompt "EV56 CPU (speed >= 400MHz)?"
 402         depends on ALPHA_RAWHIDE
 403
 404 config ALPHA_PRIMO
 405         bool "EV5 CPU daughtercard (model 5/xxx)?"
 406         depends on ALPHA_NORITAKE || ALPHA_MIKASA
 407         help
 408           Say Y if you have an AS 1000 5/xxx or an AS 1000A 5/xxx.
 409
 410 config ALPHA_GAMMA
 411         bool "EV5 CPU(s) (model 5/xxx)?"
 412         depends on ALPHA_SABLE
 413         help
 414           Say Y if you have an AS 2000 5/xxx or an AS 2100 5/xxx.
 415
 416 config ALPHA_GAMMA
 417         bool
 418         depends on ALPHA_LYNX
 419         default y
 420
 421 config ALPHA_T2
 422         bool
 423         depends on ALPHA_SABLE || ALPHA_LYNX
 424         default y
 425
 426 config ALPHA_PYXIS
 427         bool
 428         depends on ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN
 429         default y
 430
 431 config ALPHA_EV6
 432         bool
 433         depends on ALPHA_NAUTILUS || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_DP264 || ALPHA_EIGER || ALPHA_MARVEL
 434         default y
 435
 436 config ALPHA_TSUNAMI
 437         bool
 438         depends on ALPHA_SHARK || ALPHA_DP264 || ALPHA_EIGER
 439         default y
 440
 441 config ALPHA_EV67
 442         bool "EV67 (or later) CPU (speed > 600MHz)?" if ALPHA_DP264 || ALPHA_EIGER
 443         default y if ALPHA_NAUTILUS || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_MARVEL
 444         help
 445           Is this a machine based on the EV67 core?  If in doubt, select N here
 446           and the machine will be treated as an EV6.
 447
 448 config ALPHA_MCPCIA
 449         bool
 450         depends on ALPHA_RAWHIDE
 451         default y
 452
 453 config ALPHA_POLARIS
 454         bool
 455         depends on ALPHA_RX164
 456         default y
 457
 458 config ALPHA_IRONGATE
 459         bool
 460         depends on ALPHA_NAUTILUS
 461         default y
 462
 463 config GENERIC_HWEIGHT
 464         bool
 465         default y if !ALPHA_EV67
 466
 467 config ALPHA_AVANTI
 468         bool
 469         depends on ALPHA_XL || ALPHA_AVANTI_CH
 470         default y
 471         help
 472           Avanti AS 200, AS 205, AS 250, AS 255, AS 300, and AS 400-based
 473           Alphas. Info at
 474           <http://www.unix-ag.org/Linux-Alpha/Architectures/Avanti.html>.
 475
 476 config ALPHA_BROKEN_IRQ_MASK
 477         bool
 478         depends on ALPHA_GENERIC || ALPHA_PC164
 479         default y
 480
 481 config VGA_HOSE
 482         bool
 483         depends on VGA_CONSOLE && (ALPHA_GENERIC || ALPHA_TITAN || ALPHA_MARVEL || ALPHA_TSUNAMI)
 484         default y
 485         help
 486           Support VGA on an arbitrary hose; needed for several platforms
 487           which always have multiple hoses, and whose consoles support it.
 488
 489
 490 config ALPHA_SRM
 491         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
 492         depends on TTY
 493         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
 494         ---help---
 495           There are two different types of booting firmware on Alphas: SRM,
 496           which is command line driven, and ARC, which uses menus and arrow
 497           keys. Details about the Linux/Alpha booting process are contained in
 498           the Linux/Alpha FAQ, accessible on the WWW from
 499           <http://www.alphalinux.org/>.
 500
 501           The usual way to load Linux on an Alpha machine is to use MILO
 502           (a bootloader that lets you pass command line parameters to the
 503           kernel just like lilo does for the x86 architecture) which can be
 504           loaded either from ARC or can be installed directly as a permanent
 505           firmware replacement from floppy (which requires changing a certain
 506           jumper on the motherboard). If you want to do either of these, say N
 507           here. If MILO doesn't work on your system (true for Jensen
 508           motherboards), you can bypass it altogether and boot Linux directly
 509           from an SRM console; say Y here in order to do that. Note that you
 510           won't be able to boot from an IDE disk using SRM.
 511
 512           If unsure, say N.
 513
 514 config EISA
 515         bool
 516         depends on ALPHA_GENERIC || ALPHA_JENSEN || ALPHA_ALCOR || ALPHA_MIKASA || ALPHA_SABLE || ALPHA_LYNX || ALPHA_NORITAKE || ALPHA_RAWHIDE
 517         default y
 518
 519 config ARCH_MAY_HAVE_PC_FDC
 520         def_bool y
 521
 522 config SMP
 523         bool "Symmetric multi-processing support"
 524         depends on ALPHA_SABLE || ALPHA_LYNX || ALPHA_RAWHIDE || ALPHA_DP264 || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_GENERIC || ALPHA_SHARK || ALPHA_MARVEL
 525         select USE_GENERIC_SMP_HELPERS
 526         ---help---
 527           This enables support for systems with more than one CPU. If you have
 528           a system with only one CPU, like most personal computers, say N. If
 529           you have a system with more than one CPU, say Y.
 530
 531           If you say N here, the kernel will run on single and multiprocessor
 532           machines, but will use only one CPU of a multiprocessor machine. If
 533           you say Y here, the kernel will run on many, but not all,
 534           singleprocessor machines. On a singleprocessor machine, the kernel
 535           will run faster if you say N here.
 536
 537           See also the SMP-HOWTO available at
 538           <http://www.tldp.org/docs.html#howto>.
 539
 540           If you don't know what to do here, say N.
 541
 542 config HAVE_DEC_LOCK
 543         bool
 544         depends on SMP
 545         default y
 546
 547 config NR_CPUS
 548         int "Maximum number of CPUs (2-32)"
 549         range 2 32
 550         depends on SMP
 551         default "32" if ALPHA_GENERIC || ALPHA_MARVEL
 552         default "4" if !ALPHA_GENERIC && !ALPHA_MARVEL
 553         help
 554           MARVEL support can handle a maximum of 32 CPUs, all the others
 555           with working support have a maximum of 4 CPUs.
 556
 557 config ARCH_DISCONTIGMEM_ENABLE
 558         bool "Discontiguous Memory Support"
 559         help
 560           Say Y to support efficient handling of discontiguous physical memory,
 561           for architectures which are either NUMA (Non-Uniform Memory Access)
 562           or have huge holes in the physical address space for other reasons.
 563           See <file:Documentation/vm/numa> for more.
 564
 565 source "mm/Kconfig"
 566
 567 config NUMA
 568         bool "NUMA Support (EXPERIMENTAL)"
 569         depends on DISCONTIGMEM && BROKEN
 570         help
 571           Say Y to compile the kernel to support NUMA (Non-Uniform Memory
 572           Access).  This option is for configuring high-end multiprocessor
 573           server machines.  If in doubt, say N.
 574
 575 config NODES_SHIFT
 576         int
 577         default "7"
 578         depends on NEED_MULTIPLE_NODES
 579
 580 # LARGE_VMALLOC is racy, if you *really* need it then fix it first
 581 config ALPHA_LARGE_VMALLOC
 582         bool
 583         ---help---
 584           Process creation and other aspects of virtual memory management can
 585           be streamlined if we restrict the kernel to one PGD for all vmalloc
 586           allocations.  This equates to about 8GB.
 587
 588           Under normal circumstances, this is so far and above what is needed
 589           as to be laughable.  However, there are certain applications (such
 590           as benchmark-grade in-kernel web serving) that can make use of as
 591           much vmalloc space as is available.
 592
 593           Say N unless you know you need gobs and gobs of vmalloc space.
 594
 595 config VERBOSE_MCHECK
 596         bool "Verbose Machine Checks"
 597
 598 config VERBOSE_MCHECK_ON
 599         int "Verbose Printing Mode (0=off, 1=on, 2=all)"
 600         depends on VERBOSE_MCHECK
 601         default 1
 602         ---help---
 603           This option allows the default printing mode to be set, and then
 604           possibly overridden by a boot command argument.
 605
 606           For example, if one wanted the option of printing verbose
 607           machine checks, but wanted the default to be as if verbose
 608           machine check printing was turned off, then one would choose
 609           the printing mode to be 0. Then, upon reboot, one could add
 610           the boot command line "verbose_mcheck=1" to get the normal
 611           verbose machine check printing, or "verbose_mcheck=2" to get
 612           the maximum information available.
 613
 614           Take the default (1) unless you want more control or more info.
 615
 616 config HZ
 617         int
 618         default 1200 if ALPHA_RAWHIDE
 619         default 1024
 620
 621 source "drivers/pci/Kconfig"
 622 source "drivers/eisa/Kconfig"
 623
 624 source "drivers/pcmcia/Kconfig"
 625
 626 config SRM_ENV
 627         tristate "SRM environment through procfs"
 628         depends on PROC_FS
 629         ---help---
 630           If you enable this option, a subdirectory inside /proc called
 631           /proc/srm_environment will give you access to the all important
 632           SRM environment variables (those which have a name) and also
 633           to all others (by their internal number).
 634
 635           SRM is something like a BIOS for Alpha machines. There are some
 636           other such BIOSes, like AlphaBIOS, which this driver cannot
 637           support (hey, that's not SRM!).
 638
 639           Despite the fact that this driver doesn't work on all Alphas (but
 640           only on those which have SRM as their firmware), it's save to
 641           build it even if your particular machine doesn't know about SRM
 642           (or if you intend to compile a generic kernel). It will simply
 643           not create those subdirectory in /proc (and give you some warning,
 644           of course).
 645
 646           This driver is also available as a module and will be called
 647           srm_env then.
 648
 649 source "fs/Kconfig.binfmt"
 650
 651 endmenu
 652
 653 source "net/Kconfig"
 654
 655 source "drivers/Kconfig"
 656
 657 source "fs/Kconfig"
 658
 659 source "arch/alpha/Kconfig.debug"
 660
 661 # DUMMY_CONSOLE may be defined in drivers/video/console/Kconfig
 662 # but we also need it if VGA_HOSE is set
 663 config DUMMY_CONSOLE
 664         bool
 665         depends on VGA_HOSE
 666         default y
 667
 668 source "security/Kconfig"
 669
 670 source "crypto/Kconfig"
 671
 672 source "lib/Kconfig"
 673