arch/sparc64/Kconfig

   1 # $Id: config.in,v 1.158 2002/01/24 22:14:44 davem Exp $
   2 # For a description of the syntax of this configuration file,
   3 # see the Configure script.
   4 #
   5
   6 mainmenu "Linux/UltraSPARC Kernel Configuration"
   7
   8 config 64BIT
   9         def_bool y
  10
  11 config MMU
  12         bool
  13         default y
  14
  15 config TIME_INTERPOLATION
  16         bool
  17         default y
  18
  19 choice
  20         prompt "Kernel page size"
  21         default SPARC64_PAGE_SIZE_8KB
  22
  23 config SPARC64_PAGE_SIZE_8KB
  24         bool "8KB"
  25         help
  26           This lets you select the page size of the kernel.
  27
  28           8KB and 64KB work quite well, since Sparc ELF sections
  29           provide for up to 64KB alignment.
  30
  31           Therefore, 512KB and 4MB are for expert hackers only.
  32
  33           If you don't know what to do, choose 8KB.
  34
  35 config SPARC64_PAGE_SIZE_64KB
  36         bool "64KB"
  37
  38 config SPARC64_PAGE_SIZE_512KB
  39         bool "512KB"
  40
  41 config SPARC64_PAGE_SIZE_4MB
  42         bool "4MB"
  43
  44 endchoice
  45
  46 source "init/Kconfig"
  47
  48 config SYSVIPC_COMPAT
  49         bool
  50         depends on COMPAT && SYSVIPC
  51         default y
  52
  53 menu "General machine setup"
  54
  55 config BBC_I2C
  56         tristate "UltraSPARC-III bootbus i2c controller driver"
  57         depends on PCI
  58         help
  59           The BBC devices on the UltraSPARC III have two I2C controllers.  The
  60           first I2C controller connects mainly to configuration PROMs (NVRAM,
  61           CPU configuration, DIMM types, etc.).  The second I2C controller
  62           connects to environmental control devices such as fans and
  63           temperature sensors.  The second controller also connects to the
  64           smartcard reader, if present.  Say Y to enable support for these.
  65
  66 config VT
  67         bool "Virtual terminal" if EMBEDDED
  68         select INPUT
  69         default y
  70         ---help---
  71           If you say Y here, you will get support for terminal devices with
  72           display and keyboard devices. These are called "virtual" because you
  73           can run several virtual terminals (also called virtual consoles) on
  74           one physical terminal. This is rather useful, for example one
  75           virtual terminal can collect system messages and warnings, another
  76           one can be used for a text-mode user session, and a third could run
  77           an X session, all in parallel. Switching between virtual terminals
  78           is done with certain key combinations, usually Alt-<function key>.
  79
  80           The setterm command ("man setterm") can be used to change the
  81           properties (such as colors or beeping) of a virtual terminal. The
  82           man page console_codes(4) ("man console_codes") contains the special
  83           character sequences that can be used to change those properties
  84           directly. The fonts used on virtual terminals can be changed with
  85           the setfont ("man setfont") command and the key bindings are defined
  86           with the loadkeys ("man loadkeys") command.
  87
  88           You need at least one virtual terminal device in order to make use
  89           of your keyboard and monitor. Therefore, only people configuring an
  90           embedded system would want to say N here in order to save some
  91           memory; the only way to log into such a system is then via a serial
  92           or network connection.
  93
  94           If unsure, say Y, or else you won't be able to do much with your new
  95           shiny Linux system :-)
  96
  97 config VT_CONSOLE
  98         bool "Support for console on virtual terminal" if EMBEDDED
  99         depends on VT
 100         default y
 101         ---help---
 102           The system console is the device which receives all kernel messages
 103           and warnings and which allows logins in single user mode. If you
 104           answer Y here, a virtual terminal (the device used to interact with
 105           a physical terminal) can be used as system console. This is the most
 106           common mode of operations, so you should say Y here unless you want
 107           the kernel messages be output only to a serial port (in which case
 108           you should say Y to "Console on serial port", below).
 109
 110           If you do say Y here, by default the currently visible virtual
 111           terminal (/dev/tty0) will be used as system console. You can change
 112           that with a kernel command line option such as "console=tty3" which
 113           would use the third virtual terminal as system console. (Try "man
 114           bootparam" or see the documentation of your boot loader (lilo or
 115           loadlin) about how to pass options to the kernel at boot time.)
 116
 117           If unsure, say Y.
 118
 119 config HW_CONSOLE
 120         bool
 121         default y
 122
 123 config SMP
 124         bool "Symmetric multi-processing support"
 125         ---help---
 126           This enables support for systems with more than one CPU. If you have
 127           a system with only one CPU, say N. If you have a system with more than
 128           one CPU, say Y.
 129
 130           If you say N here, the kernel will run on single and multiprocessor
 131           machines, but will use only one CPU of a multiprocessor machine. If
 132           you say Y here, the kernel will run on many, but not all,
 133           singleprocessor machines. On a singleprocessor machine, the kernel
 134           will run faster if you say N here.
 135
 136           People using multiprocessor machines who say Y here should also say
 137           Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
 138           Management" code will be disabled if you say Y here.
 139
 140           See also the <file:Documentation/smp.txt>,
 141           <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
 142           <http://www.tldp.org/docs.html#howto>.
 143
 144           If you don't know what to do here, say N.
 145
 146 config PREEMPT
 147         bool "Preemptible Kernel"
 148         help
 149           This option reduces the latency of the kernel when reacting to
 150           real-time or interactive events by allowing a low priority process to
 151           be preempted even if it is in kernel mode executing a system call.
 152           This allows applications to run more reliably even when the system is
 153           under load.
 154
 155           Say Y here if you are building a kernel for a desktop, embedded
 156           or real-time system.  Say N if you are unsure.
 157
 158 config NR_CPUS
 159         int "Maximum number of CPUs (2-64)"
 160         range 2 64
 161         depends on SMP
 162         default "32"
 163
 164 source "drivers/cpufreq/Kconfig"
 165
 166 config US3_FREQ
 167         tristate "UltraSPARC-III CPU Frequency driver"
 168         depends on CPU_FREQ
 169         select CPU_FREQ_TABLE
 170         help
 171           This adds the CPUFreq driver for UltraSPARC-III processors.
 172
 173           For details, take a look at <file:Documentation/cpu-freq>.
 174
 175           If in doubt, say N.
 176
 177 config US2E_FREQ
 178         tristate "UltraSPARC-IIe CPU Frequency driver"
 179         depends on CPU_FREQ
 180         select CPU_FREQ_TABLE
 181         help
 182           This adds the CPUFreq driver for UltraSPARC-IIe processors.
 183
 184           For details, take a look at <file:Documentation/cpu-freq>.
 185
 186           If in doubt, say N.
 187
 188 # Identify this as a Sparc64 build
 189 config SPARC64
 190         bool
 191         default y
 192         help
 193           SPARC is a family of RISC microprocessors designed and marketed by
 194           Sun Microsystems, incorporated.  This port covers the newer 64-bit
 195           UltraSPARC.  The UltraLinux project maintains both the SPARC32 and
 196           SPARC64 ports; its web page is available at
 197           <http://www.ultralinux.org/>.
 198
 199 # Global things across all Sun machines.
 200 config RWSEM_GENERIC_SPINLOCK
 201         bool
 202
 203 config RWSEM_XCHGADD_ALGORITHM
 204         bool
 205         default y
 206
 207 config GENERIC_CALIBRATE_DELAY
 208         bool
 209         default y
 210
 211 choice
 212         prompt "SPARC64 Huge TLB Page Size"
 213         depends on HUGETLB_PAGE
 214         default HUGETLB_PAGE_SIZE_4MB
 215
 216 config HUGETLB_PAGE_SIZE_4MB
 217         bool "4MB"
 218
 219 config HUGETLB_PAGE_SIZE_512K
 220         depends on !SPARC64_PAGE_SIZE_4MB
 221         bool "512K"
 222
 223 config HUGETLB_PAGE_SIZE_64K
 224         depends on !SPARC64_PAGE_SIZE_4MB && !SPARC64_PAGE_SIZE_512K
 225         bool "64K"
 226
 227 endchoice
 228
 229 config GENERIC_ISA_DMA
 230         bool
 231         default y
 232
 233 config ISA
 234         bool
 235         help
 236           Find out whether you have ISA slots on your motherboard.  ISA is the
 237           name of a bus system, i.e. the way the CPU talks to the other stuff
 238           inside your box.  Other bus systems are PCI, EISA, MicroChannel
 239           (MCA) or VESA.  ISA is an older system, now being displaced by PCI;
 240           newer boards don't support it.  If you have ISA, say Y, otherwise N.
 241
 242 config ISAPNP
 243         bool
 244         help
 245           Say Y here if you would like support for ISA Plug and Play devices.
 246           Some information is in <file:Documentation/isapnp.txt>.
 247
 248           To compile this driver as a module, choose M here: the
 249           module will be called isapnp.
 250
 251           If unsure, say Y.
 252
 253 config EISA
 254         bool
 255         ---help---
 256           The Extended Industry Standard Architecture (EISA) bus was
 257           developed as an open alternative to the IBM MicroChannel bus.
 258
 259           The EISA bus provided some of the features of the IBM MicroChannel
 260           bus while maintaining backward compatibility with cards made for
 261           the older ISA bus.  The EISA bus saw limited use between 1988 and
 262           1995 when it was made obsolete by the PCI bus.
 263
 264           Say Y here if you are building a kernel for an EISA-based machine.
 265
 266           Otherwise, say N.
 267
 268 config MCA
 269         bool
 270         help
 271           MicroChannel Architecture is found in some IBM PS/2 machines and
 272           laptops.  It is a bus system similar to PCI or ISA. See
 273           <file:Documentation/mca.txt> (and especially the web page given
 274           there) before attempting to build an MCA bus kernel.
 275
 276 config PCMCIA
 277         tristate
 278         ---help---
 279           Say Y here if you want to attach PCMCIA- or PC-cards to your Linux
 280           computer.  These are credit-card size devices such as network cards,
 281           modems or hard drives often used with laptops computers.  There are
 282           actually two varieties of these cards: the older 16 bit PCMCIA cards
 283           and the newer 32 bit CardBus cards.  If you want to use CardBus
 284           cards, you need to say Y here and also to "CardBus support" below.
 285
 286           To use your PC-cards, you will need supporting software from David
 287           Hinds' pcmcia-cs package (see the file <file:Documentation/Changes>
 288           for location).  Please also read the PCMCIA-HOWTO, available from
 289           <http://www.tldp.org/docs.html#howto>.
 290
 291           To compile this driver as modules, choose M here: the
 292           modules will be called pcmcia_core and ds.
 293
 294 config SBUS
 295         bool
 296         default y
 297
 298 config SBUSCHAR
 299         bool
 300         default y
 301
 302 config SUN_AUXIO
 303         bool
 304         default y
 305
 306 config SUN_IO
 307         bool
 308         default y
 309
 310 config PCI
 311         bool "PCI support"
 312         help
 313           Find out whether you have a PCI motherboard. PCI is the name of a
 314           bus system, i.e. the way the CPU talks to the other stuff inside
 315           your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
 316           VESA. If you have PCI, say Y, otherwise N.
 317
 318           The PCI-HOWTO, available from
 319           <http://www.tldp.org/docs.html#howto>, contains valuable
 320           information about which PCI hardware does work under Linux and which
 321           doesn't.
 322
 323 config PCI_DOMAINS
 324         bool
 325         default PCI
 326
 327 config RTC
 328         tristate
 329         depends on PCI
 330         default y
 331         ---help---
 332           If you say Y here and create a character special file /dev/rtc with
 333           major number 10 and minor number 135 using mknod ("man mknod"), you
 334           will get access to the real time clock (or hardware clock) built
 335           into your computer.
 336
 337           Every PC has such a clock built in. It can be used to generate
 338           signals from as low as 1Hz up to 8192Hz, and can also be used
 339           as a 24 hour alarm. It reports status information via the file
 340           /proc/driver/rtc and its behaviour is set by various ioctls on
 341           /dev/rtc.
 342
 343           If you run Linux on a multiprocessor machine and said Y to
 344           "Symmetric Multi Processing" above, you should say Y here to read
 345           and set the RTC in an SMP compatible fashion.
 346
 347           If you think you have a use for such a device (such as periodic data
 348           sampling), then say Y here, and read <file:Documentation/rtc.txt>
 349           for details.
 350
 351           To compile this driver as a module, choose M here: the
 352           module will be called rtc.
 353
 354 source "drivers/pci/Kconfig"
 355
 356 config SUN_OPENPROMFS
 357         tristate "Openprom tree appears in /proc/openprom"
 358         help
 359           If you say Y, the OpenPROM device tree will be available as a
 360           virtual file system, which you can mount to /proc/openprom by "mount
 361           -t openpromfs none /proc/openprom".
 362
 363           To compile the /proc/openprom support as a module, choose M here: the
 364           module will be called openpromfs.  If unsure, choose M.
 365
 366 config SPARC32_COMPAT
 367         bool "Kernel support for Linux/Sparc 32bit binary compatibility"
 368         help
 369           This allows you to run 32-bit binaries on your Ultra.
 370           Everybody wants this; say Y.
 371
 372 config COMPAT
 373         bool
 374         depends on SPARC32_COMPAT
 375         default y
 376
 377 config UID16
 378         bool
 379         depends on SPARC32_COMPAT
 380         default y
 381
 382 config BINFMT_ELF32
 383         tristate "Kernel support for 32-bit ELF binaries"
 384         depends on SPARC32_COMPAT
 385         help
 386           This allows you to run 32-bit Linux/ELF binaries on your Ultra.
 387           Everybody wants this; say Y.
 388
 389 config BINFMT_AOUT32
 390         bool "Kernel support for 32-bit (ie. SunOS) a.out binaries"
 391         depends on SPARC32_COMPAT
 392         help
 393           This allows you to run 32-bit a.out format binaries on your Ultra.
 394           If you want to run SunOS binaries (see SunOS binary emulation below)
 395           or other a.out binaries, say Y. If unsure, say N.
 396
 397 source "fs/Kconfig.binfmt"
 398
 399 config SUNOS_EMUL
 400         bool "SunOS binary emulation"
 401         depends on BINFMT_AOUT32
 402         help
 403           This allows you to run most SunOS binaries.  If you want to do this,
 404           say Y here and place appropriate files in /usr/gnemul/sunos. See
 405           <http://www.ultralinux.org/faq.html> for more information.  If you
 406           want to run SunOS binaries on an Ultra you must also say Y to
 407           "Kernel support for 32-bit a.out binaries" above.
 408
 409 config SOLARIS_EMUL
 410         tristate "Solaris binary emulation (EXPERIMENTAL)"
 411         depends on SPARC32_COMPAT && EXPERIMENTAL
 412         help
 413           This is experimental code which will enable you to run (many)
 414           Solaris binaries on your SPARC Linux machine.
 415
 416           To compile this code as a module, choose M here: the
 417           module will be called solaris.
 418
 419 source "drivers/parport/Kconfig"
 420
 421 config PRINTER
 422         tristate "Parallel printer support"
 423         depends on PARPORT
 424         ---help---
 425           If you intend to attach a printer to the parallel port of your Linux
 426           box (as opposed to using a serial printer; if the connector at the
 427           printer has 9 or 25 holes ["female"], then it's serial), say Y.
 428           Also read the Printing-HOWTO, available from
 429           <http://www.tldp.org/docs.html#howto>.
 430
 431           It is possible to share one parallel port among several devices
 432           (e.g. printer and ZIP drive) and it is safe to compile the
 433           corresponding drivers into the kernel.
 434           To compile this driver as a module, choose M here and read
 435           <file:Documentation/parport.txt>.  The module will be called lp.
 436
 437           If you have several parallel ports, you can specify which ports to
 438           use with the "lp" kernel command line option.  (Try "man bootparam"
 439           or see the documentation of your boot loader (lilo or loadlin) about
 440           how to pass options to the kernel at boot time.)  The syntax of the
 441           "lp" command line option can be found in <file:drivers/char/lp.c>.
 442
 443           If you have more than 8 printers, you need to increase the LP_NO
 444           macro in lp.c and the PARPORT_MAX macro in parport.h.
 445
 446 config ENVCTRL
 447         tristate "SUNW, envctrl support"
 448         depends on PCI
 449         help
 450           Kernel support for temperature and fan monitoring on Sun SME
 451           machines.
 452
 453           To compile this driver as a module, choose M here: the
 454           module will be called envctrl.
 455
 456 config DISPLAY7SEG
 457         tristate "7-Segment Display support"
 458         depends on PCI
 459         ---help---
 460           This is the driver for the 7-segment display and LED present on
 461           Sun Microsystems CompactPCI models CP1400 and CP1500.
 462
 463           To compile this driver as a module, choose M here: the
 464           module will be called display7seg.
 465
 466           If you do not have a CompactPCI model CP1400 or CP1500, or
 467           another UltraSPARC-IIi-cEngine boardset with a 7-segment display,
 468           you should say N to this option.
 469
 470 config CMDLINE_BOOL
 471         bool "Default bootloader kernel arguments"
 472
 473 config CMDLINE
 474         string "Initial kernel command string"
 475         depends on CMDLINE_BOOL
 476         default "console=ttyS0,9600 root=/dev/sda1"
 477         help
 478           Say Y here if you want to be able to pass default arguments to
 479           the kernel. This will be overridden by the bootloader, if you
 480           use one (such as SILO). This is most useful if you want to boot
 481           a kernel from TFTP, and want default options to be available
 482           with having them passed on the command line.
 483
 484           NOTE: This option WILL override the PROM bootargs setting!
 485
 486 endmenu
 487
 488 source "drivers/base/Kconfig"
 489
 490 source "drivers/video/Kconfig"
 491
 492 source "drivers/serial/Kconfig"
 493
 494 source "drivers/sbus/char/Kconfig"
 495
 496 source "drivers/mtd/Kconfig"
 497
 498 source "drivers/block/Kconfig"
 499
 500 source "drivers/ide/Kconfig"
 501
 502 source "drivers/scsi/Kconfig"
 503
 504 source "drivers/fc4/Kconfig"
 505
 506 source "drivers/md/Kconfig"
 507
 508 if PCI
 509 source "drivers/message/fusion/Kconfig"
 510 endif
 511
 512 source "drivers/ieee1394/Kconfig"
 513
 514 source "net/Kconfig"
 515
 516 source "drivers/isdn/Kconfig"
 517
 518 source "drivers/telephony/Kconfig"
 519
 520 # This one must be before the filesystem configs. -DaveM
 521
 522 menu "Unix98 PTY support"
 523
 524 config UNIX98_PTYS
 525         bool "Unix98 PTY support"
 526         ---help---
 527           A pseudo terminal (PTY) is a software device consisting of two
 528           halves: a master and a slave. The slave device behaves identical to
 529           a physical terminal; the master device is used by a process to
 530           read data from and write data to the slave, thereby emulating a
 531           terminal. Typical programs for the master side are telnet servers
 532           and xterms.
 533
 534           Linux has traditionally used the BSD-like names /dev/ptyxx for
 535           masters and /dev/ttyxx for slaves of pseudo terminals. This scheme
 536           has a number of problems. The GNU C library glibc 2.1 and later,
 537           however, supports the Unix98 naming standard: in order to acquire a
 538           pseudo terminal, a process opens /dev/ptmx; the number of the pseudo
 539           terminal is then made available to the process and the pseudo
 540           terminal slave can be accessed as /dev/pts/<number>. What was
 541           traditionally /dev/ttyp2 will then be /dev/pts/2, for example.
 542
 543           The entries in /dev/pts/ are created on the fly by a virtual
 544           file system; therefore, if you say Y here you should say Y to
 545           "/dev/pts file system for Unix98 PTYs" as well.
 546
 547           If you want to say Y here, you need to have the C library glibc 2.1
 548           or later (equal to libc-6.1, check with "ls -l /lib/libc.so.*").
 549           Read the instructions in <file:Documentation/Changes> pertaining to
 550           pseudo terminals. It's safe to say N.
 551
 552 config UNIX98_PTY_COUNT
 553         int "Maximum number of Unix98 PTYs in use (0-2048)"
 554         depends on UNIX98_PTYS
 555         default "256"
 556         help
 557           The maximum number of Unix98 PTYs that can be used at any one time.
 558           The default is 256, and should be enough for desktop systems. Server
 559           machines which support incoming telnet/rlogin/ssh connections and/or
 560           serve several X terminals may want to increase this: every incoming
 561           connection and every xterm uses up one PTY.
 562
 563           When not in use, each additional set of 256 PTYs occupy
 564           approximately 8 KB of kernel memory on 32-bit architectures.
 565
 566 endmenu
 567
 568 menu "XFree86 DRI support"
 569
 570 config DRM
 571         bool "Direct Rendering Manager (XFree86 DRI support)"
 572         help
 573           Kernel-level support for the Direct Rendering Infrastructure (DRI)
 574           introduced in XFree86 4.0. If you say Y here, you need to select
 575           the module that's right for your graphics card from the list below.
 576           These modules provide support for synchronization, security, and
 577           DMA transfers. Please see <http://dri.sourceforge.net/> for more
 578           details.  You should also select and configure AGP
 579           (/dev/agpgart) support.
 580
 581 config DRM_FFB
 582         tristate "Creator/Creator3D"
 583         depends on DRM && BROKEN
 584         help
 585           Choose this option if you have one of Sun's Creator3D-based graphics
 586           and frame buffer cards.  Product page at
 587           <http://www.sun.com/desktop/products/Graphics/creator3d.html>.
 588
 589 config DRM_TDFX
 590         tristate "3dfx Banshee/Voodoo3+"
 591         depends on DRM
 592         help
 593           Choose this option if you have a 3dfx Banshee or Voodoo3 (or later),
 594           graphics card.  If M is selected, the module will be called tdfx.
 595
 596 config DRM_R128
 597         tristate "ATI Rage 128"
 598         depends on DRM
 599         help
 600           Choose this option if you have an ATI Rage 128 graphics card.  If M
 601           is selected, the module will be called r128.  AGP support for
 602           this card is strongly suggested (unless you have a PCI version).
 603
 604 endmenu
 605
 606 source "drivers/input/Kconfig"
 607
 608 source "drivers/i2c/Kconfig"
 609
 610 source "fs/Kconfig"
 611
 612 source "drivers/media/Kconfig"
 613
 614 source "sound/Kconfig"
 615
 616 source "drivers/usb/Kconfig"
 617
 618 source "drivers/infiniband/Kconfig"
 619
 620 source "drivers/char/watchdog/Kconfig"
 621
 622 source "arch/sparc64/oprofile/Kconfig"
 623
 624 source "arch/sparc64/Kconfig.debug"
 625
 626 source "security/Kconfig"
 627
 628 source "crypto/Kconfig"
 629
 630 source "lib/Kconfig"