arch/alpha/Kconfig

   1 #
   2 # For a description of the syntax of this configuration file,
   3 # see Documentation/kbuild/kconfig-language.txt.
   4 #
   5 config ALPHA
   6         bool
   7         default y
   8         select HAVE_AOUT
   9         select HAVE_IDE
  10         select HAVE_OPROFILE
  11         help
  12           The Alpha is a 64-bit general-purpose processor designed and
  13           marketed by the Digital Equipment Corporation of blessed memory,
  14           now Hewlett-Packard.  The Alpha Linux project has a home page at
  15           <http://www.alphalinux.org/>.
  16
  17 config 64BIT
  18         def_bool y
  19
  20 config MMU
  21         bool
  22         default y
  23
  24 config RWSEM_GENERIC_SPINLOCK
  25         bool
  26
  27 config RWSEM_XCHGADD_ALGORITHM
  28         bool
  29         default y
  30
  31 config ARCH_HAS_ILOG2_U32
  32         bool
  33         default n
  34
  35 config ARCH_HAS_ILOG2_U64
  36         bool
  37         default n
  38
  39 config GENERIC_FIND_NEXT_BIT
  40         bool
  41         default y
  42
  43 config GENERIC_CALIBRATE_DELAY
  44         bool
  45         default y
  46
  47 config ZONE_DMA
  48         bool
  49         default y
  50
  51 config GENERIC_ISA_DMA
  52         bool
  53         default y
  54
  55 config GENERIC_IOMAP
  56         bool
  57         default n
  58
  59 config GENERIC_HARDIRQS
  60         bool
  61         default y
  62
  63 config GENERIC_IRQ_PROBE
  64         bool
  65         default y
  66
  67 config AUTO_IRQ_AFFINITY
  68         bool
  69         depends on SMP
  70         default y
  71
  72 source "init/Kconfig"
  73 source "kernel/Kconfig.freezer"
  74
  75
  76 menu "System setup"
  77
  78 choice
  79         prompt "Alpha system type"
  80         default ALPHA_GENERIC
  81         ---help---
  82           This is the system type of your hardware.  A "generic" kernel will
  83           run on any supported Alpha system. However, if you configure a
  84           kernel for your specific system, it will be faster and smaller.
  85
  86           To find out what type of Alpha system you have, you may want to
  87           check out the Linux/Alpha FAQ, accessible on the WWW from
  88           <http://www.alphalinux.org/>. In summary:
  89
  90           Alcor/Alpha-XLT     AS 600, AS 500, XL-300, XL-366
  91           Alpha-XL            XL-233, XL-266
  92           AlphaBook1          Alpha laptop
  93           Avanti              AS 200, AS 205, AS 250, AS 255, AS 300, AS 400
  94           Cabriolet           AlphaPC64, AlphaPCI64
  95           DP264               DP264 / DS20 / ES40 / DS10 / DS10L
  96           EB164               EB164 21164 evaluation board
  97           EB64+               EB64+ 21064 evaluation board
  98           EB66                EB66 21066 evaluation board
  99           EB66+               EB66+ 21066 evaluation board
 100           Jensen              DECpc 150, DEC 2000 models 300, 500
 101           LX164               AlphaPC164-LX
 102           Lynx                AS 2100A
 103           Miata               Personal Workstation 433/500/600 a/au
 104           Marvel              AlphaServer ES47 / ES80 / GS1280
 105           Mikasa              AS 1000
 106           Noname              AXPpci33, UDB (Multia)
 107           Noritake            AS 1000A, AS 600A, AS 800
 108           PC164               AlphaPC164
 109           Rawhide             AS 1200, AS 4000, AS 4100
 110           Ruffian             RPX164-2, AlphaPC164-UX, AlphaPC164-BX
 111           SX164               AlphaPC164-SX
 112           Sable               AS 2000, AS 2100
 113           Shark               DS 20L
 114           Takara              Takara (OEM)
 115           Titan               AlphaServer ES45 / DS25 / DS15
 116           Wildfire            AlphaServer GS 40/80/160/320
 117
 118           If you don't know what to do, choose "generic".
 119
 120 config ALPHA_GENERIC
 121         bool "Generic"
 122         help
 123           A generic kernel will run on all supported Alpha hardware.
 124
 125 config ALPHA_ALCOR
 126         bool "Alcor/Alpha-XLT"
 127         help
 128           For systems using the Digital ALCOR chipset: 5 chips (4, 64-bit data
 129           slices (Data Switch, DSW) - 208-pin PQFP and 1 control (Control, I/O
 130           Address, CIA) - a 383 pin plastic PGA).  It provides a DRAM
 131           controller (256-bit memory bus) and a PCI interface.  It also does
 132           all the work required to support an external Bcache and to maintain
 133           memory coherence when a PCI device DMAs into (or out of) memory.
 134
 135 config ALPHA_XL
 136         bool "Alpha-XL"
 137         help
 138           XL-233 and XL-266-based Alpha systems.
 139
 140 config ALPHA_BOOK1
 141         bool "AlphaBook1"
 142         help
 143           Dec AlphaBook1/Burns Alpha-based laptops.
 144
 145 config ALPHA_AVANTI_CH
 146         bool "Avanti"
 147
 148 config ALPHA_CABRIOLET
 149         bool "Cabriolet"
 150         help
 151           Cabriolet AlphaPC64, AlphaPCI64 systems.  Derived from EB64+ but now
 152           baby-AT with Flash boot ROM, no on-board SCSI or Ethernet. 3 ISA
 153           slots, 4 PCI slots (one pair are on a shared slot), uses plug-in
 154           Bcache SIMMs.  Requires power supply with 3.3V output.
 155
 156 config ALPHA_DP264
 157         bool "DP264"
 158         help
 159           Various 21264 systems with the tsunami core logic chipset.
 160           API Networks: 264DP, UP2000(+), CS20;
 161           Compaq: DS10(E,L), XP900, XP1000, DS20(E), ES40.
 162
 163 config ALPHA_EB164
 164         bool "EB164"
 165         help
 166           EB164 21164 evaluation board from DEC.  Uses 21164 and ALCOR.  Has
 167           ISA and PCI expansion (3 ISA slots, 2 64-bit PCI slots (one is
 168           shared with an ISA slot) and 2 32-bit PCI slots.  Uses plus-in
 169           Bcache SIMMs. I/O sub-system provides SuperI/O (2S, 1P, FD), KBD,
 170           MOUSE (PS2 style), RTC/NVRAM.  Boot ROM is Flash.  PC-AT-sized
 171           motherboard.  Requires power supply with 3.3V output.
 172
 173 config ALPHA_EB64P_CH
 174         bool "EB64+"
 175
 176 config ALPHA_EB66
 177         bool "EB66"
 178         help
 179           A Digital DS group board.  Uses 21066 or 21066A.  I/O sub-system is
 180           identical to EB64+.  Baby PC-AT size.  Runs from standard PC power
 181           supply.  The EB66 schematic was published as a marketing poster
 182           advertising the 21066 as "the first microprocessor in the world with
 183           embedded PCI".
 184
 185 config ALPHA_EB66P
 186         bool "EB66+"
 187         help
 188           Later variant of the EB66 board.
 189
 190 config ALPHA_EIGER
 191         bool "Eiger"
 192         help
 193           Apparently an obscure OEM single-board computer based on the
 194           Typhoon/Tsunami chipset family. Information on it is scanty.
 195
 196 config ALPHA_JENSEN
 197         bool "Jensen"
 198         help
 199           DEC PC 150 AXP (aka Jensen): This is a very old Digital system - one
 200           of the first-generation Alpha systems. A number of these systems
 201           seem to be available on the second- hand market. The Jensen is a
 202           floor-standing tower system which originally used a 150MHz 21064 It
 203           used programmable logic to interface a 486 EISA I/O bridge to the
 204           CPU.
 205
 206 config ALPHA_LX164
 207         bool "LX164"
 208         help
 209           A technical overview of this board is available at
 210           <http://www.unix-ag.org/Linux-Alpha/Architectures/LX164.html>.
 211
 212 config ALPHA_LYNX
 213         bool "Lynx"
 214         help
 215           AlphaServer 2100A-based systems.
 216
 217 config ALPHA_MARVEL
 218         bool "Marvel"
 219         help
 220           AlphaServer ES47 / ES80 / GS1280 based on EV7.
 221
 222 config ALPHA_MIATA
 223         bool "Miata"
 224         help
 225           The Digital PersonalWorkStation (PWS 433a, 433au, 500a, 500au, 600a,
 226           or 600au).
 227
 228 config ALPHA_MIKASA
 229         bool "Mikasa"
 230         help
 231           AlphaServer 1000-based Alpha systems.
 232
 233 config ALPHA_NAUTILUS
 234         bool "Nautilus"
 235         help
 236           Alpha systems based on the AMD 751 & ALI 1543C chipsets.
 237
 238 config ALPHA_NONAME_CH
 239         bool "Noname"
 240
 241 config ALPHA_NORITAKE
 242         bool "Noritake"
 243         help
 244           AlphaServer 1000A, AlphaServer 600A, and AlphaServer 800-based
 245           systems.
 246
 247 config ALPHA_PC164
 248         bool "PC164"
 249
 250 config ALPHA_P2K
 251         bool "Platform2000"
 252
 253 config ALPHA_RAWHIDE
 254         bool "Rawhide"
 255         help
 256           AlphaServer 1200, AlphaServer 4000 and AlphaServer 4100 machines.
 257           See HOWTO at
 258           <http://www.alphalinux.org/docs/rawhide/4100_install.shtml>.
 259
 260 config ALPHA_RUFFIAN
 261         bool "Ruffian"
 262         help
 263           Samsung APC164UX.  There is a page on known problems and workarounds
 264           at <http://www.alphalinux.org/faq/FAQ-11.html>.
 265
 266 config ALPHA_RX164
 267         bool "RX164"
 268
 269 config ALPHA_SX164
 270         bool "SX164"
 271
 272 config ALPHA_SABLE
 273         bool "Sable"
 274         help
 275           Digital AlphaServer 2000 and 2100-based systems.
 276
 277 config ALPHA_SHARK
 278         bool "Shark"
 279
 280 config ALPHA_TAKARA
 281         bool "Takara"
 282         help
 283           Alpha 11164-based OEM single-board computer.
 284
 285 config ALPHA_TITAN
 286         bool "Titan"
 287         help
 288           AlphaServer ES45/DS25 SMP based on EV68 and Titan chipset.
 289
 290 config ALPHA_WILDFIRE
 291         bool "Wildfire"
 292         help
 293           AlphaServer GS 40/80/160/320 SMP based on the EV67 core.
 294
 295 endchoice
 296
 297 # clear all implied options (don't want default values for those):
 298 # Most of these machines have ISA slots; not exactly sure which don't,
 299 # and this doesn't activate hordes of code, so do it always.
 300 config ISA
 301         bool
 302         default y
 303         help
 304           Find out whether you have ISA slots on your motherboard.  ISA is the
 305           name of a bus system, i.e. the way the CPU talks to the other stuff
 306           inside your box.  Other bus systems are PCI, EISA, MicroChannel
 307           (MCA) or VESA.  ISA is an older system, now being displaced by PCI;
 308           newer boards don't support it.  If you have ISA, say Y, otherwise N.
 309
 310 config ISA_DMA_API
 311         bool
 312         default y
 313
 314 config PCI
 315         bool
 316         depends on !ALPHA_JENSEN
 317         default y
 318         help
 319           Find out whether you have a PCI motherboard. PCI is the name of a
 320           bus system, i.e. the way the CPU talks to the other stuff inside
 321           your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
 322           VESA. If you have PCI, say Y, otherwise N.
 323
 324 config PCI_DOMAINS
 325         bool
 326         default y
 327
 328 config PCI_SYSCALL
 329         def_bool PCI
 330
 331 config IOMMU_HELPER
 332         def_bool PCI
 333
 334 config ALPHA_NONAME
 335         bool
 336         depends on ALPHA_BOOK1 || ALPHA_NONAME_CH
 337         default y
 338         help
 339           The AXPpci33 (aka NoName), is based on the EB66 (includes the Multia
 340           UDB).  This design was produced by Digital's Technical OEM (TOEM)
 341           group. It uses the 21066 processor running at 166MHz or 233MHz. It
 342           is a baby-AT size, and runs from a standard PC power supply. It has
 343           5 ISA slots and 3 PCI slots (one pair are a shared slot). There are
 344           2 versions, with either PS/2 or large DIN connectors for the
 345           keyboard.
 346
 347 config ALPHA_EV4
 348         bool
 349         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
 350         default y if !ALPHA_LYNX
 351
 352 config ALPHA_LCA
 353         bool
 354         depends on ALPHA_NONAME || ALPHA_EB66 || ALPHA_EB66P || ALPHA_P2K
 355         default y
 356
 357 config ALPHA_APECS
 358         bool
 359         depends on !ALPHA_PRIMO && (ALPHA_NORITAKE || ALPHA_MIKASA) || ALPHA_CABRIOLET || ALPHA_AVANTI_CH || ALPHA_EB64P_CH || ALPHA_XL
 360         default y
 361
 362 config ALPHA_EB64P
 363         bool
 364         depends on ALPHA_CABRIOLET || ALPHA_EB64P_CH
 365         default y
 366         help
 367           Uses 21064 or 21064A and APECs.  Has ISA and PCI expansion (3 ISA,
 368           2 PCI, one pair are on a shared slot). Supports 36-bit DRAM SIMs.
 369           ISA bus generated by Intel SaturnI/O PCI-ISA bridge. On-board SCSI
 370           (NCR 810 on PCI) Ethernet (Digital 21040), KBD, MOUSE (PS2 style),
 371           SuperI/O (2S, 1P, FD), RTC/NVRAM. Boot ROM is EPROM.  PC-AT size.
 372           Runs from standard PC power supply.
 373
 374 config ALPHA_EV5
 375         bool "EV5 CPU(s) (model 5/xxx)?" if ALPHA_LYNX
 376         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
 377
 378 config ALPHA_EV4
 379         bool
 380         default y if ALPHA_LYNX && !ALPHA_EV5
 381
 382 config ALPHA_CIA
 383         bool
 384         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
 385         default y
 386
 387 config ALPHA_EV56
 388         bool "EV56 CPU (speed >= 366MHz)?" if ALPHA_ALCOR
 389         default y if ALPHA_RX164 || ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN || ALPHA_PC164 || ALPHA_TAKARA
 390
 391 config ALPHA_EV56
 392         prompt "EV56 CPU (speed >= 333MHz)?"
 393         depends on ALPHA_NORITAKE || ALPHA_PRIMO
 394
 395 config ALPHA_EV56
 396         prompt "EV56 CPU (speed >= 400MHz)?"
 397         depends on ALPHA_RAWHIDE
 398
 399 config ALPHA_PRIMO
 400         bool "EV5 CPU daughtercard (model 5/xxx)?"
 401         depends on ALPHA_NORITAKE || ALPHA_MIKASA
 402         help
 403           Say Y if you have an AS 1000 5/xxx or an AS 1000A 5/xxx.
 404
 405 config ALPHA_GAMMA
 406         bool "EV5 CPU(s) (model 5/xxx)?"
 407         depends on ALPHA_SABLE
 408         help
 409           Say Y if you have an AS 2000 5/xxx or an AS 2100 5/xxx.
 410
 411 config ALPHA_GAMMA
 412         bool
 413         depends on ALPHA_LYNX
 414         default y
 415
 416 config ALPHA_T2
 417         bool
 418         depends on ALPHA_SABLE || ALPHA_LYNX
 419         default y
 420
 421 config ALPHA_PYXIS
 422         bool
 423         depends on ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN
 424         default y
 425
 426 config ALPHA_EV6
 427         bool
 428         depends on ALPHA_NAUTILUS || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_DP264 || ALPHA_EIGER || ALPHA_MARVEL
 429         default y
 430
 431 config ALPHA_TSUNAMI
 432         bool
 433         depends on ALPHA_SHARK || ALPHA_DP264 || ALPHA_EIGER
 434         default y
 435
 436 config ALPHA_EV67
 437         bool "EV67 (or later) CPU (speed > 600MHz)?" if ALPHA_DP264 || ALPHA_EIGER
 438         default y if ALPHA_NAUTILUS || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_MARVEL
 439         help
 440           Is this a machine based on the EV67 core?  If in doubt, select N here
 441           and the machine will be treated as an EV6.
 442
 443 config ALPHA_EV7
 444         bool
 445         depends on ALPHA_MARVEL
 446         default y
 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 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         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
 493         ---help---
 494           There are two different types of booting firmware on Alphas: SRM,
 495           which is command line driven, and ARC, which uses menus and arrow
 496           keys. Details about the Linux/Alpha booting process are contained in
 497           the Linux/Alpha FAQ, accessible on the WWW from
 498           <http://www.alphalinux.org/>.
 499
 500           The usual way to load Linux on an Alpha machine is to use MILO
 501           (a bootloader that lets you pass command line parameters to the
 502           kernel just like lilo does for the x86 architecture) which can be
 503           loaded either from ARC or can be installed directly as a permanent
 504           firmware replacement from floppy (which requires changing a certain
 505           jumper on the motherboard). If you want to do either of these, say N
 506           here. If MILO doesn't work on your system (true for Jensen
 507           motherboards), you can bypass it altogether and boot Linux directly
 508           from an SRM console; say Y here in order to do that. Note that you
 509           won't be able to boot from an IDE disk using SRM.
 510
 511           If unsure, say N.
 512
 513 config EISA
 514         bool
 515         depends on ALPHA_GENERIC || ALPHA_JENSEN || ALPHA_ALCOR || ALPHA_MIKASA || ALPHA_SABLE || ALPHA_LYNX || ALPHA_NORITAKE || ALPHA_RAWHIDE
 516         default y
 517
 518 config ARCH_MAY_HAVE_PC_FDC
 519         def_bool y
 520
 521 config SMP
 522         bool "Symmetric multi-processing support"
 523         depends on ALPHA_SABLE || ALPHA_LYNX || ALPHA_RAWHIDE || ALPHA_DP264 || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_GENERIC || ALPHA_SHARK || ALPHA_MARVEL
 524         select USE_GENERIC_SMP_HELPERS
 525         ---help---
 526           This enables support for systems with more than one CPU. If you have
 527           a system with only one CPU, like most personal computers, say N. If
 528           you have a system with more than one CPU, say Y.
 529
 530           If you say N here, the kernel will run on single and multiprocessor
 531           machines, but will use only one CPU of a multiprocessor machine. If
 532           you say Y here, the kernel will run on many, but not all,
 533           singleprocessor machines. On a singleprocessor machine, the kernel
 534           will run faster if you say N here.
 535
 536           See also the SMP-HOWTO available at
 537           <http://www.tldp.org/docs.html#howto>.
 538
 539           If you don't know what to do here, say N.
 540
 541 config HAVE_DEC_LOCK
 542         bool
 543         depends on SMP
 544         default y
 545
 546 config NR_CPUS
 547         int "Maximum number of CPUs (2-32)"
 548         range 2 32
 549         depends on SMP
 550         default "32" if ALPHA_GENERIC || ALPHA_MARVEL
 551         default "4" if !ALPHA_GENERIC && !ALPHA_MARVEL
 552         help
 553           MARVEL support can handle a maximum of 32 CPUs, all the others
 554           with working support have a maximum of 4 CPUs.
 555
 556 config ARCH_DISCONTIGMEM_ENABLE
 557         bool "Discontiguous Memory Support (EXPERIMENTAL)"
 558         depends on EXPERIMENTAL
 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