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_SYSCALL_WRAPPERS
   8         select HAVE_PCSPKR_PLATFORM
   9         select HAVE_PERF_EVENTS
  10         select HAVE_DMA_ATTRS
  11         select HAVE_GENERIC_HARDIRQS
  12         select VIRT_TO_BUS
  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 GENERIC_SMP_IDLE_THREAD
  20         select GENERIC_CMOS_UPDATE
  21         select GENERIC_STRNCPY_FROM_USER
  22         select GENERIC_STRNLEN_USER
  23         select HAVE_MOD_ARCH_SPECIFIC
  24         select MODULES_USE_ELF_RELA
  25         select ODD_RT_SIGACTION
  26         select OLD_SIGSUSPEND
  27         help
  28           The Alpha is a 64-bit general-purpose processor designed and
  29           marketed by the Digital Equipment Corporation of blessed memory,
  30           now Hewlett-Packard.  The Alpha Linux project has a home page at
  31           <http://www.alphalinux.org/>.
  32
  33 config 64BIT
  34         def_bool y
  35
  36 config MMU
  37         bool
  38         default y
  39
  40 config RWSEM_GENERIC_SPINLOCK
  41         bool
  42
  43 config RWSEM_XCHGADD_ALGORITHM
  44         bool
  45         default y
  46
  47 config ARCH_HAS_ILOG2_U32
  48         bool
  49         default n
  50
  51 config ARCH_HAS_ILOG2_U64
  52         bool
  53         default n
  54
  55 config GENERIC_CALIBRATE_DELAY
  56         bool
  57         default y
  58
  59 config GENERIC_GPIO
  60         bool
  61
  62 config ZONE_DMA
  63         bool
  64         default y
  65
  66 config ARCH_DMA_ADDR_T_64BIT
  67         def_bool y
  68
  69 config NEED_DMA_MAP_STATE
  70        def_bool y
  71
  72 config NEED_SG_DMA_LENGTH
  73         def_bool y
  74
  75 config GENERIC_ISA_DMA
  76         bool
  77         default y
  78
  79 source "init/Kconfig"
  80 source "kernel/Kconfig.freezer"
  81
  82
  83 menu "System setup"
  84
  85 choice
  86         prompt "Alpha system type"
  87         default ALPHA_GENERIC
  88         ---help---
  89           This is the system type of your hardware.  A "generic" kernel will
  90           run on any supported Alpha system. However, if you configure a
  91           kernel for your specific system, it will be faster and smaller.
  92
  93           To find out what type of Alpha system you have, you may want to
  94           check out the Linux/Alpha FAQ, accessible on the WWW from
  95           <http://www.alphalinux.org/>. In summary:
  96
  97           Alcor/Alpha-XLT     AS 600, AS 500, XL-300, XL-366
  98           Alpha-XL            XL-233, XL-266
  99           AlphaBook1          Alpha laptop
 100           Avanti              AS 200, AS 205, AS 250, AS 255, AS 300, AS 400
 101           Cabriolet           AlphaPC64, AlphaPCI64
 102           DP264               DP264 / DS20 / ES40 / DS10 / DS10L
 103           EB164               EB164 21164 evaluation board
 104           EB64+               EB64+ 21064 evaluation board
 105           EB66                EB66 21066 evaluation board
 106           EB66+               EB66+ 21066 evaluation board
 107           Jensen              DECpc 150, DEC 2000 models 300, 500
 108           LX164               AlphaPC164-LX
 109           Lynx                AS 2100A
 110           Miata               Personal Workstation 433/500/600 a/au
 111           Marvel              AlphaServer ES47 / ES80 / GS1280
 112           Mikasa              AS 1000
 113           Noname              AXPpci33, UDB (Multia)
 114           Noritake            AS 1000A, AS 600A, AS 800
 115           PC164               AlphaPC164
 116           Rawhide             AS 1200, AS 4000, AS 4100
 117           Ruffian             RPX164-2, AlphaPC164-UX, AlphaPC164-BX
 118           SX164               AlphaPC164-SX
 119           Sable               AS 2000, AS 2100
 120           Shark               DS 20L
 121           Takara              Takara (OEM)
 122           Titan               AlphaServer ES45 / DS25 / DS15
 123           Wildfire            AlphaServer GS 40/80/160/320
 124
 125           If you don't know what to do, choose "generic".
 126
 127 config ALPHA_GENERIC
 128         bool "Generic"
 129         depends on TTY
 130         help
 131           A generic kernel will run on all supported Alpha hardware.
 132
 133 config ALPHA_ALCOR
 134         bool "Alcor/Alpha-XLT"
 135         help
 136           For systems using the Digital ALCOR chipset: 5 chips (4, 64-bit data
 137           slices (Data Switch, DSW) - 208-pin PQFP and 1 control (Control, I/O
 138           Address, CIA) - a 383 pin plastic PGA).  It provides a DRAM
 139           controller (256-bit memory bus) and a PCI interface.  It also does
 140           all the work required to support an external Bcache and to maintain
 141           memory coherence when a PCI device DMAs into (or out of) memory.
 142
 143 config ALPHA_XL
 144         bool "Alpha-XL"
 145         help
 146           XL-233 and XL-266-based Alpha systems.
 147
 148 config ALPHA_BOOK1
 149         bool "AlphaBook1"
 150         help
 151           Dec AlphaBook1/Burns Alpha-based laptops.
 152
 153 config ALPHA_AVANTI_CH
 154         bool "Avanti"
 155
 156 config ALPHA_CABRIOLET
 157         bool "Cabriolet"
 158         help
 159           Cabriolet AlphaPC64, AlphaPCI64 systems.  Derived from EB64+ but now
 160           baby-AT with Flash boot ROM, no on-board SCSI or Ethernet. 3 ISA
 161           slots, 4 PCI slots (one pair are on a shared slot), uses plug-in
 162           Bcache SIMMs.  Requires power supply with 3.3V output.
 163
 164 config ALPHA_DP264
 165         bool "DP264"
 166         help
 167           Various 21264 systems with the tsunami core logic chipset.
 168           API Networks: 264DP, UP2000(+), CS20;
 169           Compaq: DS10(E,L), XP900, XP1000, DS20(E), ES40.
 170
 171 config ALPHA_EB164
 172         bool "EB164"
 173         help
 174           EB164 21164 evaluation board from DEC.  Uses 21164 and ALCOR.  Has
 175           ISA and PCI expansion (3 ISA slots, 2 64-bit PCI slots (one is
 176           shared with an ISA slot) and 2 32-bit PCI slots.  Uses plus-in
 177           Bcache SIMMs. I/O sub-system provides SuperI/O (2S, 1P, FD), KBD,
 178           MOUSE (PS2 style), RTC/NVRAM.  Boot ROM is Flash.  PC-AT-sized
 179           motherboard.  Requires power supply with 3.3V output.
 180
 181 config ALPHA_EB64P_CH
 182         bool "EB64+"
 183
 184 config ALPHA_EB66
 185         bool "EB66"
 186         help
 187           A Digital DS group board.  Uses 21066 or 21066A.  I/O sub-system is
 188           identical to EB64+.  Baby PC-AT size.  Runs from standard PC power
 189           supply.  The EB66 schematic was published as a marketing poster
 190           advertising the 21066 as "the first microprocessor in the world with
 191           embedded PCI".
 192
 193 config ALPHA_EB66P
 194         bool "EB66+"
 195         help
 196           Later variant of the EB66 board.
 197
 198 config ALPHA_EIGER
 199         bool "Eiger"
 200         help
 201           Apparently an obscure OEM single-board computer based on the
 202           Typhoon/Tsunami chipset family. Information on it is scanty.
 203
 204 config ALPHA_JENSEN
 205         bool "Jensen"
 206         help
 207           DEC PC 150 AXP (aka Jensen): This is a very old Digital system - one
 208           of the first-generation Alpha systems. A number of these systems
 209           seem to be available on the second- hand market. The Jensen is a
 210           floor-standing tower system which originally used a 150MHz 21064 It
 211           used programmable logic to interface a 486 EISA I/O bridge to the
 212           CPU.
 213
 214 config ALPHA_LX164
 215         bool "LX164"
 216         help
 217           A technical overview of this board is available at
 218           <http://www.unix-ag.org/Linux-Alpha/Architectures/LX164.html>.
 219
 220 config ALPHA_LYNX
 221         bool "Lynx"
 222         help
 223           AlphaServer 2100A-based systems.
 224
 225 config ALPHA_MARVEL
 226         bool "Marvel"
 227         help
 228           AlphaServer ES47 / ES80 / GS1280 based on EV7.
 229
 230 config ALPHA_MIATA
 231         bool "Miata"
 232         help
 233           The Digital PersonalWorkStation (PWS 433a, 433au, 500a, 500au, 600a,
 234           or 600au).
 235
 236 config ALPHA_MIKASA
 237         bool "Mikasa"
 238         help
 239           AlphaServer 1000-based Alpha systems.
 240
 241 config ALPHA_NAUTILUS
 242         bool "Nautilus"
 243         help
 244           Alpha systems based on the AMD 751 & ALI 1543C chipsets.
 245
 246 config ALPHA_NONAME_CH
 247         bool "Noname"
 248
 249 config ALPHA_NORITAKE
 250         bool "Noritake"
 251         help
 252           AlphaServer 1000A, AlphaServer 600A, and AlphaServer 800-based
 253           systems.
 254
 255 config ALPHA_PC164
 256         bool "PC164"
 257
 258 config ALPHA_P2K
 259         bool "Platform2000"
 260
 261 config ALPHA_RAWHIDE
 262         bool "Rawhide"
 263         help
 264           AlphaServer 1200, AlphaServer 4000 and AlphaServer 4100 machines.
 265           See HOWTO at
 266           <http://www.alphalinux.org/docs/rawhide/4100_install.shtml>.
 267
 268 config ALPHA_RUFFIAN
 269         bool "Ruffian"
 270         help
 271           Samsung APC164UX.  There is a page on known problems and workarounds
 272           at <http://www.alphalinux.org/faq/FAQ-11.html>.
 273
 274 config ALPHA_RX164
 275         bool "RX164"
 276
 277 config ALPHA_SX164
 278         bool "SX164"
 279
 280 config ALPHA_SABLE
 281         bool "Sable"
 282         help
 283           Digital AlphaServer 2000 and 2100-based systems.
 284
 285 config ALPHA_SHARK
 286         bool "Shark"
 287
 288 config ALPHA_TAKARA
 289         bool "Takara"
 290         help
 291           Alpha 11164-based OEM single-board computer.
 292
 293 config ALPHA_TITAN
 294         bool "Titan"
 295         help
 296           AlphaServer ES45/DS25 SMP based on EV68 and Titan chipset.
 297
 298 config ALPHA_WILDFIRE
 299         bool "Wildfire"
 300         help
 301           AlphaServer GS 40/80/160/320 SMP based on the EV67 core.
 302
 303 endchoice
 304
 305 # clear all implied options (don't want default values for those):
 306 # Most of these machines have ISA slots; not exactly sure which don't,
 307 # and this doesn't activate hordes of code, so do it always.
 308 config ISA
 309         bool
 310         default y
 311         help
 312           Find out whether you have ISA slots on your motherboard.  ISA is the
 313           name of a bus system, i.e. the way the CPU talks to the other stuff
 314           inside your box.  Other bus systems are PCI, EISA, MicroChannel
 315           (MCA) or VESA.  ISA is an older system, now being displaced by PCI;
 316           newer boards don't support it.  If you have ISA, say Y, otherwise N.
 317
 318 config ISA_DMA_API
 319         bool
 320         default y
 321
 322 config PCI
 323         bool
 324         depends on !ALPHA_JENSEN
 325         select GENERIC_PCI_IOMAP
 326         default y
 327         help
 328           Find out whether you have a PCI motherboard. PCI is the name of a
 329           bus system, i.e. the way the CPU talks to the other stuff inside
 330           your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
 331           VESA. If you have PCI, say Y, otherwise N.
 332
 333 config PCI_DOMAINS
 334         bool
 335         default y
 336
 337 config PCI_SYSCALL
 338         def_bool PCI
 339
 340 config IOMMU_HELPER
 341         def_bool PCI
 342
 343 config ALPHA_NONAME
 344         bool
 345         depends on ALPHA_BOOK1 || ALPHA_NONAME_CH
 346         default y
 347         help
 348           The AXPpci33 (aka NoName), is based on the EB66 (includes the Multia
 349           UDB).  This design was produced by Digital's Technical OEM (TOEM)
 350           group. It uses the 21066 processor running at 166MHz or 233MHz. It
 351           is a baby-AT size, and runs from a standard PC power supply. It has
 352           5 ISA slots and 3 PCI slots (one pair are a shared slot). There are
 353           2 versions, with either PS/2 or large DIN connectors for the
 354           keyboard.
 355
 356 config ALPHA_EV4
 357         bool
 358         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
 359         default y if !ALPHA_LYNX
 360
 361 config ALPHA_LCA
 362         bool
 363         depends on ALPHA_NONAME || ALPHA_EB66 || ALPHA_EB66P || ALPHA_P2K
 364         default y
 365
 366 config ALPHA_APECS
 367         bool
 368         depends on !ALPHA_PRIMO && (ALPHA_NORITAKE || ALPHA_MIKASA) || ALPHA_CABRIOLET || ALPHA_AVANTI_CH || ALPHA_EB64P_CH || ALPHA_XL
 369         default y
 370
 371 config ALPHA_EB64P
 372         bool
 373         depends on ALPHA_CABRIOLET || ALPHA_EB64P_CH
 374         default y
 375         help
 376           Uses 21064 or 21064A and APECs.  Has ISA and PCI expansion (3 ISA,
 377           2 PCI, one pair are on a shared slot). Supports 36-bit DRAM SIMs.
 378           ISA bus generated by Intel SaturnI/O PCI-ISA bridge. On-board SCSI
 379           (NCR 810 on PCI) Ethernet (Digital 21040), KBD, MOUSE (PS2 style),
 380           SuperI/O (2S, 1P, FD), RTC/NVRAM. Boot ROM is EPROM.  PC-AT size.
 381           Runs from standard PC power supply.
 382
 383 config ALPHA_EV5
 384         bool "EV5 CPU(s) (model 5/xxx)?" if ALPHA_LYNX
 385         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
 386
 387 config ALPHA_EV4
 388         bool
 389         default y if ALPHA_LYNX && !ALPHA_EV5
 390
 391 config ALPHA_CIA
 392         bool
 393         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
 394         default y
 395
 396 config ALPHA_EV56
 397         bool "EV56 CPU (speed >= 366MHz)?" if ALPHA_ALCOR
 398         default y if ALPHA_RX164 || ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN || ALPHA_PC164 || ALPHA_TAKARA
 399
 400 config ALPHA_EV56
 401         prompt "EV56 CPU (speed >= 333MHz)?"
 402         depends on ALPHA_NORITAKE || ALPHA_PRIMO
 403
 404 config ALPHA_EV56
 405         prompt "EV56 CPU (speed >= 400MHz)?"
 406         depends on ALPHA_RAWHIDE
 407
 408 config ALPHA_PRIMO
 409         bool "EV5 CPU daughtercard (model 5/xxx)?"
 410         depends on ALPHA_NORITAKE || ALPHA_MIKASA
 411         help
 412           Say Y if you have an AS 1000 5/xxx or an AS 1000A 5/xxx.
 413
 414 config ALPHA_GAMMA
 415         bool "EV5 CPU(s) (model 5/xxx)?"
 416         depends on ALPHA_SABLE
 417         help
 418           Say Y if you have an AS 2000 5/xxx or an AS 2100 5/xxx.
 419
 420 config ALPHA_GAMMA
 421         bool
 422         depends on ALPHA_LYNX
 423         default y
 424
 425 config ALPHA_T2
 426         bool
 427         depends on ALPHA_SABLE || ALPHA_LYNX
 428         default y
 429
 430 config ALPHA_PYXIS
 431         bool
 432         depends on ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN
 433         default y
 434
 435 config ALPHA_EV6
 436         bool
 437         depends on ALPHA_NAUTILUS || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_DP264 || ALPHA_EIGER || ALPHA_MARVEL
 438         default y
 439
 440 config ALPHA_TSUNAMI
 441         bool
 442         depends on ALPHA_SHARK || ALPHA_DP264 || ALPHA_EIGER
 443         default y
 444
 445 config ALPHA_EV67
 446         bool "EV67 (or later) CPU (speed > 600MHz)?" if ALPHA_DP264 || ALPHA_EIGER
 447         default y if ALPHA_NAUTILUS || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_MARVEL
 448         help
 449           Is this a machine based on the EV67 core?  If in doubt, select N here
 450           and the machine will be treated as an EV6.
 451
 452 config ALPHA_MCPCIA
 453         bool
 454         depends on ALPHA_RAWHIDE
 455         default y
 456
 457 config ALPHA_POLARIS
 458         bool
 459         depends on ALPHA_RX164
 460         default y
 461
 462 config ALPHA_IRONGATE
 463         bool
 464         depends on ALPHA_NAUTILUS
 465         default y
 466
 467 config GENERIC_HWEIGHT
 468         bool
 469         default y if !ALPHA_EV67
 470
 471 config ALPHA_AVANTI
 472         bool
 473         depends on ALPHA_XL || ALPHA_AVANTI_CH
 474         default y
 475         help
 476           Avanti AS 200, AS 205, AS 250, AS 255, AS 300, and AS 400-based
 477           Alphas. Info at
 478           <http://www.unix-ag.org/Linux-Alpha/Architectures/Avanti.html>.
 479
 480 config ALPHA_BROKEN_IRQ_MASK
 481         bool
 482         depends on ALPHA_GENERIC || ALPHA_PC164
 483         default y
 484
 485 config VGA_HOSE
 486         bool
 487         depends on VGA_CONSOLE && (ALPHA_GENERIC || ALPHA_TITAN || ALPHA_MARVEL || ALPHA_TSUNAMI)
 488         default y
 489         help
 490           Support VGA on an arbitrary hose; needed for several platforms
 491           which always have multiple hoses, and whose consoles support it.
 492
 493
 494 config ALPHA_SRM
 495         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
 496         depends on TTY
 497         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
 498         ---help---
 499           There are two different types of booting firmware on Alphas: SRM,
 500           which is command line driven, and ARC, which uses menus and arrow
 501           keys. Details about the Linux/Alpha booting process are contained in
 502           the Linux/Alpha FAQ, accessible on the WWW from
 503           <http://www.alphalinux.org/>.
 504
 505           The usual way to load Linux on an Alpha machine is to use MILO
 506           (a bootloader that lets you pass command line parameters to the
 507           kernel just like lilo does for the x86 architecture) which can be
 508           loaded either from ARC or can be installed directly as a permanent
 509           firmware replacement from floppy (which requires changing a certain
 510           jumper on the motherboard). If you want to do either of these, say N
 511           here. If MILO doesn't work on your system (true for Jensen
 512           motherboards), you can bypass it altogether and boot Linux directly
 513           from an SRM console; say Y here in order to do that. Note that you
 514           won't be able to boot from an IDE disk using SRM.
 515
 516           If unsure, say N.
 517
 518 config EISA
 519         bool
 520         depends on ALPHA_GENERIC || ALPHA_JENSEN || ALPHA_ALCOR || ALPHA_MIKASA || ALPHA_SABLE || ALPHA_LYNX || ALPHA_NORITAKE || ALPHA_RAWHIDE
 521         default y
 522
 523 config ARCH_MAY_HAVE_PC_FDC
 524         def_bool y
 525
 526 config SMP
 527         bool "Symmetric multi-processing support"
 528         depends on ALPHA_SABLE || ALPHA_LYNX || ALPHA_RAWHIDE || ALPHA_DP264 || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_GENERIC || ALPHA_SHARK || ALPHA_MARVEL
 529         select USE_GENERIC_SMP_HELPERS
 530         ---help---
 531           This enables support for systems with more than one CPU. If you have
 532           a system with only one CPU, like most personal computers, say N. If
 533           you have a system with more than one CPU, say Y.
 534
 535           If you say N here, the kernel will run on single and multiprocessor
 536           machines, but will use only one CPU of a multiprocessor machine. If
 537           you say Y here, the kernel will run on many, but not all,
 538           singleprocessor machines. On a singleprocessor machine, the kernel
 539           will run faster if you say N here.
 540
 541           See also the SMP-HOWTO available at
 542           <http://www.tldp.org/docs.html#howto>.
 543
 544           If you don't know what to do here, say N.
 545
 546 config HAVE_DEC_LOCK
 547         bool
 548         depends on SMP
 549         default y
 550
 551 config NR_CPUS
 552         int "Maximum number of CPUs (2-32)"
 553         range 2 32
 554         depends on SMP
 555         default "32" if ALPHA_GENERIC || ALPHA_MARVEL
 556         default "4" if !ALPHA_GENERIC && !ALPHA_MARVEL
 557         help
 558           MARVEL support can handle a maximum of 32 CPUs, all the others
 559           with working support have a maximum of 4 CPUs.
 560
 561 config ARCH_DISCONTIGMEM_ENABLE
 562         bool "Discontiguous Memory Support"
 563         help
 564           Say Y to support efficient handling of discontiguous physical memory,
 565           for architectures which are either NUMA (Non-Uniform Memory Access)
 566           or have huge holes in the physical address space for other reasons.
 567           See <file:Documentation/vm/numa> for more.
 568
 569 source "mm/Kconfig"
 570
 571 config NUMA
 572         bool "NUMA Support (EXPERIMENTAL)"
 573         depends on DISCONTIGMEM && BROKEN
 574         help
 575           Say Y to compile the kernel to support NUMA (Non-Uniform Memory
 576           Access).  This option is for configuring high-end multiprocessor
 577           server machines.  If in doubt, say N.
 578
 579 config NODES_SHIFT
 580         int
 581         default "7"
 582         depends on NEED_MULTIPLE_NODES
 583
 584 # LARGE_VMALLOC is racy, if you *really* need it then fix it first
 585 config ALPHA_LARGE_VMALLOC
 586         bool
 587         ---help---
 588           Process creation and other aspects of virtual memory management can
 589           be streamlined if we restrict the kernel to one PGD for all vmalloc
 590           allocations.  This equates to about 8GB.
 591
 592           Under normal circumstances, this is so far and above what is needed
 593           as to be laughable.  However, there are certain applications (such
 594           as benchmark-grade in-kernel web serving) that can make use of as
 595           much vmalloc space as is available.
 596
 597           Say N unless you know you need gobs and gobs of vmalloc space.
 598
 599 config VERBOSE_MCHECK
 600         bool "Verbose Machine Checks"
 601
 602 config VERBOSE_MCHECK_ON
 603         int "Verbose Printing Mode (0=off, 1=on, 2=all)"
 604         depends on VERBOSE_MCHECK
 605         default 1
 606         ---help---
 607           This option allows the default printing mode to be set, and then
 608           possibly overridden by a boot command argument.
 609
 610           For example, if one wanted the option of printing verbose
 611           machine checks, but wanted the default to be as if verbose
 612           machine check printing was turned off, then one would choose
 613           the printing mode to be 0. Then, upon reboot, one could add
 614           the boot command line "verbose_mcheck=1" to get the normal
 615           verbose machine check printing, or "verbose_mcheck=2" to get
 616           the maximum information available.
 617
 618           Take the default (1) unless you want more control or more info.
 619
 620 config HZ
 621         int
 622         default 1200 if ALPHA_RAWHIDE
 623         default 1024
 624
 625 source "drivers/pci/Kconfig"
 626 source "drivers/eisa/Kconfig"
 627
 628 source "drivers/pcmcia/Kconfig"
 629
 630 config SRM_ENV
 631         tristate "SRM environment through procfs"
 632         depends on PROC_FS
 633         ---help---
 634           If you enable this option, a subdirectory inside /proc called
 635           /proc/srm_environment will give you access to the all important
 636           SRM environment variables (those which have a name) and also
 637           to all others (by their internal number).
 638
 639           SRM is something like a BIOS for Alpha machines. There are some
 640           other such BIOSes, like AlphaBIOS, which this driver cannot
 641           support (hey, that's not SRM!).
 642
 643           Despite the fact that this driver doesn't work on all Alphas (but
 644           only on those which have SRM as their firmware), it's save to
 645           build it even if your particular machine doesn't know about SRM
 646           (or if you intend to compile a generic kernel). It will simply
 647           not create those subdirectory in /proc (and give you some warning,
 648           of course).
 649
 650           This driver is also available as a module and will be called
 651           srm_env then.
 652
 653 source "fs/Kconfig.binfmt"
 654
 655 endmenu
 656
 657 source "net/Kconfig"
 658
 659 source "drivers/Kconfig"
 660
 661 source "fs/Kconfig"
 662
 663 source "arch/alpha/Kconfig.debug"
 664
 665 # DUMMY_CONSOLE may be defined in drivers/video/console/Kconfig
 666 # but we also need it if VGA_HOSE is set
 667 config DUMMY_CONSOLE
 668         bool
 669         depends on VGA_HOSE
 670         default y
 671
 672 source "security/Kconfig"
 673
 674 source "crypto/Kconfig"
 675
 676 source "lib/Kconfig"
 677