Kconfig 8.1 KB

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  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. mainmenu "Linux/SPARC Kernel Configuration"
  6. config MMU
  7. bool
  8. default y
  9. config UID16
  10. bool
  11. default y
  12. config HIGHMEM
  13. bool
  14. default y
  15. config GENERIC_ISA_DMA
  16. bool
  17. default y
  18. config GENERIC_IOMAP
  19. bool
  20. default y
  21. source "init/Kconfig"
  22. menu "General machine setup"
  23. config SMP
  24. bool "Symmetric multi-processing support (does not work on sun4/sun4c)"
  25. depends on BROKEN
  26. ---help---
  27. This enables support for systems with more than one CPU. If you have
  28. a system with only one CPU, say N. If you have a system with more
  29. than one CPU, say Y.
  30. If you say N here, the kernel will run on single and multiprocessor
  31. machines, but will use only one CPU of a multiprocessor machine. If
  32. you say Y here, the kernel will run on many, but not all,
  33. singleprocessor machines. On a singleprocessor machine, the kernel
  34. will run faster if you say N here.
  35. People using multiprocessor machines who say Y here should also say
  36. Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
  37. Management" code will be disabled if you say Y here.
  38. See also the <file:Documentation/smp.txt>,
  39. <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
  40. <http://www.tldp.org/docs.html#howto>.
  41. If you don't know what to do here, say N.
  42. config NR_CPUS
  43. int "Maximum number of CPUs (2-32)"
  44. range 2 32
  45. depends on SMP
  46. default "32"
  47. # Identify this as a Sparc32 build
  48. config SPARC32
  49. bool
  50. default y
  51. help
  52. SPARC is a family of RISC microprocessors designed and marketed by
  53. Sun Microsystems, incorporated. They are very widely found in Sun
  54. workstations and clones. This port covers the original 32-bit SPARC;
  55. it is old and stable and usually considered one of the "big three"
  56. along with the Intel and Alpha ports. The UltraLinux project
  57. maintains both the SPARC32 and SPARC64 ports; its web page is
  58. available at <http://www.ultralinux.org/>.
  59. # Global things across all Sun machines.
  60. config ISA
  61. bool
  62. help
  63. ISA is found on Espresso only and is not supported currently.
  64. Say N
  65. config EISA
  66. bool
  67. help
  68. EISA is not supported.
  69. Say N
  70. config MCA
  71. bool
  72. help
  73. MCA is not supported.
  74. Say N
  75. config PCMCIA
  76. tristate
  77. ---help---
  78. Say Y here if you want to attach PCMCIA- or PC-cards to your Linux
  79. computer. These are credit-card size devices such as network cards,
  80. modems or hard drives often used with laptops computers. There are
  81. actually two varieties of these cards: the older 16 bit PCMCIA cards
  82. and the newer 32 bit CardBus cards. If you want to use CardBus
  83. cards, you need to say Y here and also to "CardBus support" below.
  84. To use your PC-cards, you will need supporting software from David
  85. Hinds' pcmcia-cs package (see the file <file:Documentation/Changes>
  86. for location). Please also read the PCMCIA-HOWTO, available from
  87. <http://www.tldp.org/docs.html#howto>.
  88. To compile this driver as modules, choose M here: the
  89. modules will be called pcmcia_core and ds.
  90. config SBUS
  91. bool
  92. default y
  93. config SBUSCHAR
  94. bool
  95. default y
  96. config SERIAL_CONSOLE
  97. bool
  98. default y
  99. ---help---
  100. If you say Y here, it will be possible to use a serial port as the
  101. system console (the system console is the device which receives all
  102. kernel messages and warnings and which allows logins in single user
  103. mode). This could be useful if some terminal or printer is connected
  104. to that serial port.
  105. Even if you say Y here, the currently visible virtual console
  106. (/dev/tty0) will still be used as the system console by default, but
  107. you can alter that using a kernel command line option such as
  108. "console=ttyS1". (Try "man bootparam" or see the documentation of
  109. your boot loader (silo) about how to pass options to the kernel at
  110. boot time.)
  111. If you don't have a graphics card installed and you say Y here, the
  112. kernel will automatically use the first serial line, /dev/ttyS0, as
  113. system console.
  114. If unsure, say N.
  115. config SUN_AUXIO
  116. bool
  117. default y
  118. config SUN_IO
  119. bool
  120. default y
  121. config RWSEM_GENERIC_SPINLOCK
  122. bool
  123. default y
  124. config RWSEM_XCHGADD_ALGORITHM
  125. bool
  126. config GENERIC_CALIBRATE_DELAY
  127. bool
  128. default y
  129. config ARCH_MAY_HAVE_PC_FDC
  130. bool
  131. default y
  132. config SUN_PM
  133. bool
  134. default y
  135. help
  136. Enable power management and CPU standby features on supported
  137. SPARC platforms.
  138. config SUN4
  139. bool "Support for SUN4 machines (disables SUN4[CDM] support)"
  140. depends on !SMP
  141. default n
  142. help
  143. Say Y here if, and only if, your machine is a sun4. Note that
  144. a kernel compiled with this option will run only on sun4.
  145. (And the current version will probably work only on sun4/330.)
  146. if !SUN4
  147. config PCI
  148. bool "Support for PCI and PS/2 keyboard/mouse"
  149. help
  150. CONFIG_PCI is needed for all JavaStation's (including MrCoffee),
  151. CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC.
  152. All of these platforms are extremely obscure, so say N if unsure.
  153. source "drivers/pci/Kconfig"
  154. endif
  155. config SUN_OPENPROMFS
  156. tristate "Openprom tree appears in /proc/openprom"
  157. help
  158. If you say Y, the OpenPROM device tree will be available as a
  159. virtual file system, which you can mount to /proc/openprom by "mount
  160. -t openpromfs none /proc/openprom".
  161. To compile the /proc/openprom support as a module, choose M here: the
  162. module will be called openpromfs.
  163. Only choose N if you know in advance that you will not need to modify
  164. OpenPROM settings on the running system.
  165. source "fs/Kconfig.binfmt"
  166. config SUNOS_EMUL
  167. bool "SunOS binary emulation"
  168. help
  169. This allows you to run most SunOS binaries. If you want to do this,
  170. say Y here and place appropriate files in /usr/gnemul/sunos. See
  171. <http://www.ultralinux.org/faq.html> for more information. If you
  172. want to run SunOS binaries on an Ultra you must also say Y to
  173. "Kernel support for 32-bit a.out binaries" above.
  174. source "mm/Kconfig"
  175. endmenu
  176. source "net/Kconfig"
  177. source "drivers/Kconfig"
  178. if !SUN4
  179. source "drivers/sbus/char/Kconfig"
  180. endif
  181. # This one must be before the filesystem configs. -DaveM
  182. menu "Unix98 PTY support"
  183. config UNIX98_PTYS
  184. bool "Unix98 PTY support"
  185. ---help---
  186. A pseudo terminal (PTY) is a software device consisting of two
  187. halves: a master and a slave. The slave device behaves identical to
  188. a physical terminal; the master device is used by a process to
  189. read data from and write data to the slave, thereby emulating a
  190. terminal. Typical programs for the master side are telnet servers
  191. and xterms.
  192. Linux has traditionally used the BSD-like names /dev/ptyxx for
  193. masters and /dev/ttyxx for slaves of pseudo terminals. This scheme
  194. has a number of problems. The GNU C library glibc 2.1 and later,
  195. however, supports the Unix98 naming standard: in order to acquire a
  196. pseudo terminal, a process opens /dev/ptmx; the number of the pseudo
  197. terminal is then made available to the process and the pseudo
  198. terminal slave can be accessed as /dev/pts/<number>. What was
  199. traditionally /dev/ttyp2 will then be /dev/pts/2, for example.
  200. The entries in /dev/pts/ are created on the fly by a virtual
  201. file system; therefore, if you say Y here you should say Y to
  202. "/dev/pts file system for Unix98 PTYs" as well.
  203. If you want to say Y here, you need to have the C library glibc 2.1
  204. or later (equal to libc-6.1, check with "ls -l /lib/libc.so.*").
  205. Read the instructions in <file:Documentation/Changes> pertaining to
  206. pseudo terminals. It's safe to say N.
  207. config UNIX98_PTY_COUNT
  208. int "Maximum number of Unix98 PTYs in use (0-2048)"
  209. depends on UNIX98_PTYS
  210. default "256"
  211. help
  212. The maximum number of Unix98 PTYs that can be used at any one time.
  213. The default is 256, and should be enough for desktop systems. Server
  214. machines which support incoming telnet/rlogin/ssh connections and/or
  215. serve several X terminals may want to increase this: every incoming
  216. connection and every xterm uses up one PTY.
  217. When not in use, each additional set of 256 PTYs occupy
  218. approximately 8 KB of kernel memory on 32-bit architectures.
  219. endmenu
  220. source "fs/Kconfig"
  221. source "arch/sparc/Kconfig.debug"
  222. source "security/Kconfig"
  223. source "crypto/Kconfig"
  224. source "lib/Kconfig"