arch/sparc/Kconfig

   1 # $Id: config.in,v 1.113 2002/01/24 22:14:44 davem Exp $
   2 # For a description of the syntax of this configuration file,
   3 # see Documentation/kbuild/kconfig-language.txt.
   4 #
   5
   6 mainmenu "Linux/SPARC Kernel Configuration"
   7
   8 config MMU
   9         bool
  10         default y
  11
  12 config UID16
  13         bool
  14         default y
  15
  16 config HIGHMEM
  17         bool
  18         default y
  19
  20 config GENERIC_ISA_DMA
  21         bool
  22         default y
  23
  24 source "init/Kconfig"
  25
  26 menu "General machine setup"
  27
  28 config VT
  29         bool
  30         select INPUT
  31         default y
  32         ---help---
  33           If you say Y here, you will get support for terminal devices with
  34           display and keyboard devices. These are called "virtual" because you
  35           can run several virtual terminals (also called virtual consoles) on
  36           one physical terminal. This is rather useful, for example one
  37           virtual terminal can collect system messages and warnings, another
  38           one can be used for a text-mode user session, and a third could run
  39           an X session, all in parallel. Switching between virtual terminals
  40           is done with certain key combinations, usually Alt-<function key>.
  41
  42           The setterm command ("man setterm") can be used to change the
  43           properties (such as colors or beeping) of a virtual terminal. The
  44           man page console_codes(4) ("man console_codes") contains the special
  45           character sequences that can be used to change those properties
  46           directly. The fonts used on virtual terminals can be changed with
  47           the setfont ("man setfont") command and the key bindings are defined
  48           with the loadkeys ("man loadkeys") command.
  49
  50           You need at least one virtual terminal device in order to make use
  51           of your keyboard and monitor. Therefore, only people configuring an
  52           embedded system would want to say N here in order to save some
  53           memory; the only way to log into such a system is then via a serial
  54           or network connection.
  55
  56           If unsure, say Y, or else you won't be able to do much with your new
  57           shiny Linux system :-)
  58
  59 config VT_CONSOLE
  60         bool
  61         default y
  62         ---help---
  63           The system console is the device which receives all kernel messages
  64           and warnings and which allows logins in single user mode. If you
  65           answer Y here, a virtual terminal (the device used to interact with
  66           a physical terminal) can be used as system console. This is the most
  67           common mode of operations, so you should say Y here unless you want
  68           the kernel messages be output only to a serial port (in which case
  69           you should say Y to "Console on serial port", below).
  70
  71           If you do say Y here, by default the currently visible virtual
  72           terminal (/dev/tty0) will be used as system console. You can change
  73           that with a kernel command line option such as "console=tty3" which
  74           would use the third virtual terminal as system console. (Try "man
  75           bootparam" or see the documentation of your boot loader (lilo or
  76           loadlin) about how to pass options to the kernel at boot time.)
  77
  78           If unsure, say Y.
  79
  80 config HW_CONSOLE
  81         bool
  82         default y
  83
  84 config SMP
  85         bool "Symmetric multi-processing support (does not work on sun4/sun4c)"
  86         depends on BROKEN
  87         ---help---
  88           This enables support for systems with more than one CPU. If you have
  89           a system with only one CPU, say N. If you have a system with more
  90           than one CPU, say Y.
  91
  92           If you say N here, the kernel will run on single and multiprocessor
  93           machines, but will use only one CPU of a multiprocessor machine. If
  94           you say Y here, the kernel will run on many, but not all,
  95           singleprocessor machines. On a singleprocessor machine, the kernel
  96           will run faster if you say N here.
  97
  98           People using multiprocessor machines who say Y here should also say
  99           Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
 100           Management" code will be disabled if you say Y here.
 101
 102           See also the <file:Documentation/smp.txt>,
 103           <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
 104           <http://www.tldp.org/docs.html#howto>.
 105
 106           If you don't know what to do here, say N.
 107
 108 config NR_CPUS
 109         int "Maximum number of CPUs (2-32)"
 110         range 2 32
 111         depends on SMP
 112         default "32"
 113
 114 # Identify this as a Sparc32 build
 115 config SPARC32
 116         bool
 117         default y
 118         help
 119           SPARC is a family of RISC microprocessors designed and marketed by
 120           Sun Microsystems, incorporated.  They are very widely found in Sun
 121           workstations and clones. This port covers the original 32-bit SPARC;
 122           it is old and stable and usually considered one of the "big three"
 123           along with the Intel and Alpha ports.  The UltraLinux project
 124           maintains both the SPARC32 and SPARC64 ports; its web page is
 125           available at <http://www.ultralinux.org/>.
 126
 127 # Global things across all Sun machines.
 128 config ISA
 129         bool
 130         help
 131           ISA is found on Espresso only and is not supported currently.
 132           Say N
 133
 134 config EISA
 135         bool
 136         help
 137           EISA is not supported.
 138           Say N
 139
 140 config MCA
 141         bool
 142         help
 143           MCA is not supported.
 144           Say N
 145
 146 config PCMCIA
 147         tristate
 148         ---help---
 149           Say Y here if you want to attach PCMCIA- or PC-cards to your Linux
 150           computer.  These are credit-card size devices such as network cards,
 151           modems or hard drives often used with laptops computers.  There are
 152           actually two varieties of these cards: the older 16 bit PCMCIA cards
 153           and the newer 32 bit CardBus cards.  If you want to use CardBus
 154           cards, you need to say Y here and also to "CardBus support" below.
 155
 156           To use your PC-cards, you will need supporting software from David
 157           Hinds' pcmcia-cs package (see the file <file:Documentation/Changes>
 158           for location).  Please also read the PCMCIA-HOWTO, available from
 159           <http://www.tldp.org/docs.html#howto>.
 160
 161           To compile this driver as modules, choose M here: the
 162           modules will be called pcmcia_core and ds.
 163
 164 config SBUS
 165         bool
 166         default y
 167
 168 config SBUSCHAR
 169         bool
 170         default y
 171
 172 config SERIAL_CONSOLE
 173         bool
 174         default y
 175         ---help---
 176           If you say Y here, it will be possible to use a serial port as the
 177           system console (the system console is the device which receives all
 178           kernel messages and warnings and which allows logins in single user
 179           mode). This could be useful if some terminal or printer is connected
 180           to that serial port.
 181
 182           Even if you say Y here, the currently visible virtual console
 183           (/dev/tty0) will still be used as the system console by default, but
 184           you can alter that using a kernel command line option such as
 185           "console=ttyS1". (Try "man bootparam" or see the documentation of
 186           your boot loader (silo) about how to pass options to the kernel at
 187           boot time.)
 188
 189           If you don't have a graphics card installed and you say Y here, the
 190           kernel will automatically use the first serial line, /dev/ttyS0, as
 191           system console.
 192
 193           If unsure, say N.
 194
 195 config SUN_AUXIO
 196         bool
 197         default y
 198
 199 config SUN_IO
 200         bool
 201         default y
 202
 203 config RWSEM_GENERIC_SPINLOCK
 204         bool
 205         default y
 206
 207 config RWSEM_XCHGADD_ALGORITHM
 208         bool
 209
 210 config GENERIC_CALIBRATE_DELAY
 211         bool
 212         default y
 213
 214 config SUN_PM
 215         bool
 216         default y
 217         help
 218           Enable power management and CPU standby features on supported
 219           SPARC platforms.
 220
 221 config SUN4
 222         bool "Support for SUN4 machines (disables SUN4[CDM] support)"
 223         depends on !SMP
 224         default n
 225         help
 226           Say Y here if, and only if, your machine is a sun4. Note that
 227           a kernel compiled with this option will run only on sun4.
 228           (And the current version will probably work only on sun4/330.)
 229
 230 if !SUN4
 231
 232 config PCI
 233         bool "Support for PCI and PS/2 keyboard/mouse"
 234         help
 235           CONFIG_PCI is needed for all JavaStation's (including MrCoffee),
 236           CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC.
 237           All of these platforms are extremely obscure, so say N if unsure.
 238
 239 source "drivers/pci/Kconfig"
 240
 241 endif
 242
 243 config SUN_OPENPROMFS
 244         tristate "Openprom tree appears in /proc/openprom"
 245         help
 246           If you say Y, the OpenPROM device tree will be available as a
 247           virtual file system, which you can mount to /proc/openprom by "mount
 248           -t openpromfs none /proc/openprom".
 249
 250           To compile the /proc/openprom support as a module, choose M here: the
 251           module will be called openpromfs.
 252
 253           Only choose N if you know in advance that you will not need to modify
 254           OpenPROM settings on the running system.
 255
 256 source "fs/Kconfig.binfmt"
 257
 258 config SUNOS_EMUL
 259         bool "SunOS binary emulation"
 260         help
 261           This allows you to run most SunOS binaries.  If you want to do this,
 262           say Y here and place appropriate files in /usr/gnemul/sunos. See
 263           <http://www.ultralinux.org/faq.html> for more information.  If you
 264           want to run SunOS binaries on an Ultra you must also say Y to
 265           "Kernel support for 32-bit a.out binaries" above.
 266
 267 source "drivers/parport/Kconfig"
 268
 269 config PRINTER
 270         tristate "Parallel printer support"
 271         depends on PARPORT
 272         ---help---
 273           If you intend to attach a printer to the parallel port of your Linux
 274           box (as opposed to using a serial printer; if the connector at the
 275           printer has 9 or 25 holes ["female"], then it's serial), say Y.
 276           Also read the Printing-HOWTO, available from
 277           <http://www.tldp.org/docs.html#howto>.
 278
 279           It is possible to share one parallel port among several devices
 280           (e.g. printer and ZIP drive) and it is safe to compile the
 281           corresponding drivers into the kernel.  If you want to compile this
 282           driver as a module however, choose M here and read
 283           <file:Documentation/parport.txt>.  The module will be called lp.
 284
 285           If you have several parallel ports, you can specify which ports to
 286           use with the "lp" kernel command line option.  (Try "man bootparam"
 287           or see the documentation of your boot loader (silo) about how to pass
 288           options to the kernel at boot time.)  The syntax of the "lp" command
 289           line option can be found in <file:drivers/char/lp.c>.
 290
 291           If you have more than 8 printers, you need to increase the LP_NO
 292           macro in lp.c and the PARPORT_MAX macro in parport.h.
 293
 294 endmenu
 295
 296 source "drivers/base/Kconfig"
 297
 298 source "drivers/video/Kconfig"
 299
 300 source "drivers/mtd/Kconfig"
 301
 302 source "drivers/serial/Kconfig"
 303
 304 if !SUN4
 305 source "drivers/sbus/char/Kconfig"
 306 endif
 307
 308 source "drivers/block/Kconfig"
 309
 310 # Don't frighten a common SBus user
 311 if PCI
 312
 313 source "drivers/ide/Kconfig"
 314
 315 endif
 316
 317 source "drivers/isdn/Kconfig"
 318
 319 source "drivers/scsi/Kconfig"
 320
 321 source "drivers/fc4/Kconfig"
 322
 323 source "drivers/md/Kconfig"
 324
 325 source "net/Kconfig"
 326
 327 # This one must be before the filesystem configs. -DaveM
 328
 329 menu "Unix98 PTY support"
 330
 331 config UNIX98_PTYS
 332         bool "Unix98 PTY support"
 333         ---help---
 334           A pseudo terminal (PTY) is a software device consisting of two
 335           halves: a master and a slave. The slave device behaves identical to
 336           a physical terminal; the master device is used by a process to
 337           read data from and write data to the slave, thereby emulating a
 338           terminal. Typical programs for the master side are telnet servers
 339           and xterms.
 340
 341           Linux has traditionally used the BSD-like names /dev/ptyxx for
 342           masters and /dev/ttyxx for slaves of pseudo terminals. This scheme
 343           has a number of problems. The GNU C library glibc 2.1 and later,
 344           however, supports the Unix98 naming standard: in order to acquire a
 345           pseudo terminal, a process opens /dev/ptmx; the number of the pseudo
 346           terminal is then made available to the process and the pseudo
 347           terminal slave can be accessed as /dev/pts/<number>. What was
 348           traditionally /dev/ttyp2 will then be /dev/pts/2, for example.
 349
 350           The entries in /dev/pts/ are created on the fly by a virtual
 351           file system; therefore, if you say Y here you should say Y to
 352           "/dev/pts file system for Unix98 PTYs" as well.
 353
 354           If you want to say Y here, you need to have the C library glibc 2.1
 355           or later (equal to libc-6.1, check with "ls -l /lib/libc.so.*").
 356           Read the instructions in <file:Documentation/Changes> pertaining to
 357           pseudo terminals. It's safe to say N.
 358
 359 config UNIX98_PTY_COUNT
 360         int "Maximum number of Unix98 PTYs in use (0-2048)"
 361         depends on UNIX98_PTYS
 362         default "256"
 363         help
 364           The maximum number of Unix98 PTYs that can be used at any one time.
 365           The default is 256, and should be enough for desktop systems. Server
 366           machines which support incoming telnet/rlogin/ssh connections and/or
 367           serve several X terminals may want to increase this: every incoming
 368           connection and every xterm uses up one PTY.
 369
 370           When not in use, each additional set of 256 PTYs occupy
 371           approximately 8 KB of kernel memory on 32-bit architectures.
 372
 373 endmenu
 374
 375 source "drivers/input/Kconfig"
 376
 377 source "fs/Kconfig"
 378
 379 source "sound/Kconfig"
 380
 381 source "drivers/usb/Kconfig"
 382
 383 source "drivers/infiniband/Kconfig"
 384
 385 source "drivers/char/watchdog/Kconfig"
 386
 387 source "arch/sparc/Kconfig.debug"
 388
 389 source "security/Kconfig"
 390
 391 source "crypto/Kconfig"
 392
 393 source "lib/Kconfig"