Kconfig 7.7 KB

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  1. # For a description of the syntax of this configuration file,
  2. # see Documentation/kbuild/kconfig-language.txt.
  3. #
  4. mainmenu "Linux/SPARC Kernel Configuration"
  5. config MMU
  6. bool
  7. default y
  8. config HIGHMEM
  9. bool
  10. default y
  11. config ZONE_DMA
  12. bool
  13. default y
  14. config GENERIC_ISA_DMA
  15. bool
  16. default y
  17. config GENERIC_GPIO
  18. bool
  19. help
  20. Generic GPIO API support
  21. config ARCH_NO_VIRT_TO_BUS
  22. def_bool y
  23. config OF
  24. def_bool y
  25. config HZ
  26. int
  27. default 100
  28. source "init/Kconfig"
  29. source "kernel/Kconfig.freezer"
  30. menu "General machine setup"
  31. config SMP
  32. bool "Symmetric multi-processing support (does not work on sun4/sun4c)"
  33. ---help---
  34. This enables support for systems with more than one CPU. If you have
  35. a system with only one CPU, say N. If you have a system with more
  36. than one CPU, say Y.
  37. If you say N here, the kernel will run on single and multiprocessor
  38. machines, but will use only one CPU of a multiprocessor machine. If
  39. you say Y here, the kernel will run on many, but not all,
  40. singleprocessor machines. On a singleprocessor machine, the kernel
  41. will run faster if you say N here.
  42. People using multiprocessor machines who say Y here should also say
  43. Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
  44. Management" code will be disabled if you say Y here.
  45. See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
  46. available at <http://www.tldp.org/docs.html#howto>.
  47. If you don't know what to do here, say N.
  48. config NR_CPUS
  49. int "Maximum number of CPUs (2-32)"
  50. range 2 32
  51. depends on SMP
  52. default "32"
  53. config SPARC
  54. bool
  55. default y
  56. select HAVE_IDE
  57. select HAVE_OPROFILE
  58. select HAVE_ARCH_KGDB if !SMP
  59. select HAVE_ARCH_TRACEHOOK
  60. select ARCH_WANT_OPTIONAL_GPIOLIB
  61. select RTC_CLASS
  62. select RTC_DRV_M48T59
  63. # Identify this as a Sparc32 build
  64. config SPARC32
  65. bool
  66. default y
  67. help
  68. SPARC is a family of RISC microprocessors designed and marketed by
  69. Sun Microsystems, incorporated. They are very widely found in Sun
  70. workstations and clones. This port covers the original 32-bit SPARC;
  71. it is old and stable and usually considered one of the "big three"
  72. along with the Intel and Alpha ports. The UltraLinux project
  73. maintains both the SPARC32 and SPARC64 ports; its web page is
  74. available at <http://www.ultralinux.org/>.
  75. # Global things across all Sun machines.
  76. config ISA
  77. bool
  78. help
  79. ISA is found on Espresso only and is not supported currently.
  80. Say N
  81. config EISA
  82. bool
  83. help
  84. EISA is not supported.
  85. Say N
  86. config MCA
  87. bool
  88. help
  89. MCA is not supported.
  90. Say N
  91. config PCMCIA
  92. tristate
  93. ---help---
  94. Say Y here if you want to attach PCMCIA- or PC-cards to your Linux
  95. computer. These are credit-card size devices such as network cards,
  96. modems or hard drives often used with laptops computers. There are
  97. actually two varieties of these cards: the older 16 bit PCMCIA cards
  98. and the newer 32 bit CardBus cards. If you want to use CardBus
  99. cards, you need to say Y here and also to "CardBus support" below.
  100. To use your PC-cards, you will need supporting software from David
  101. Hinds' pcmcia-cs package (see the file <file:Documentation/Changes>
  102. for location). Please also read the PCMCIA-HOWTO, available from
  103. <http://www.tldp.org/docs.html#howto>.
  104. To compile this driver as modules, choose M here: the
  105. modules will be called pcmcia_core and ds.
  106. config SBUS
  107. bool
  108. default y
  109. config SBUSCHAR
  110. bool
  111. default y
  112. config SERIAL_CONSOLE
  113. bool
  114. default y
  115. ---help---
  116. If you say Y here, it will be possible to use a serial port as the
  117. system console (the system console is the device which receives all
  118. kernel messages and warnings and which allows logins in single user
  119. mode). This could be useful if some terminal or printer is connected
  120. to that serial port.
  121. Even if you say Y here, the currently visible virtual console
  122. (/dev/tty0) will still be used as the system console by default, but
  123. you can alter that using a kernel command line option such as
  124. "console=ttyS1". (Try "man bootparam" or see the documentation of
  125. your boot loader (silo) about how to pass options to the kernel at
  126. boot time.)
  127. If you don't have a graphics card installed and you say Y here, the
  128. kernel will automatically use the first serial line, /dev/ttyS0, as
  129. system console.
  130. If unsure, say N.
  131. config SUN_AUXIO
  132. bool
  133. default y
  134. config SUN_IO
  135. bool
  136. default y
  137. config RWSEM_GENERIC_SPINLOCK
  138. bool
  139. default y
  140. config RWSEM_XCHGADD_ALGORITHM
  141. bool
  142. config GENERIC_FIND_NEXT_BIT
  143. bool
  144. default y
  145. config GENERIC_HWEIGHT
  146. bool
  147. default y
  148. config GENERIC_CALIBRATE_DELAY
  149. bool
  150. default y
  151. config ARCH_MAY_HAVE_PC_FDC
  152. bool
  153. default y
  154. config ARCH_HAS_ILOG2_U32
  155. bool
  156. default n
  157. config ARCH_HAS_ILOG2_U64
  158. bool
  159. default n
  160. config EMULATED_CMPXCHG
  161. bool
  162. default y
  163. help
  164. Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
  165. is emulated, and therefore it is not completely atomic.
  166. config SUN_PM
  167. bool
  168. default y
  169. help
  170. Enable power management and CPU standby features on supported
  171. SPARC platforms.
  172. config PCI
  173. bool "Support for PCI and PS/2 keyboard/mouse"
  174. help
  175. CONFIG_PCI is needed for all JavaStation's (including MrCoffee),
  176. CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC.
  177. All of these platforms are extremely obscure, so say N if unsure.
  178. config PCI_SYSCALL
  179. def_bool PCI
  180. source "drivers/pci/Kconfig"
  181. config SUN_OPENPROMFS
  182. tristate "Openprom tree appears in /proc/openprom"
  183. help
  184. If you say Y, the OpenPROM device tree will be available as a
  185. virtual file system, which you can mount to /proc/openprom by "mount
  186. -t openpromfs none /proc/openprom".
  187. To compile the /proc/openprom support as a module, choose M here: the
  188. module will be called openpromfs.
  189. Only choose N if you know in advance that you will not need to modify
  190. OpenPROM settings on the running system.
  191. config SPARC_LED
  192. tristate "Sun4m LED driver"
  193. help
  194. This driver toggles the front-panel LED on sun4m systems
  195. in a user-specifiable manner. Its state can be probed
  196. by reading /proc/led and its blinking mode can be changed
  197. via writes to /proc/led
  198. source "fs/Kconfig.binfmt"
  199. source "mm/Kconfig"
  200. endmenu
  201. source "net/Kconfig"
  202. source "drivers/Kconfig"
  203. source "drivers/sbus/char/Kconfig"
  204. # This one must be before the filesystem configs. -DaveM
  205. menu "Unix98 PTY support"
  206. config UNIX98_PTYS
  207. bool "Unix98 PTY support"
  208. ---help---
  209. A pseudo terminal (PTY) is a software device consisting of two
  210. halves: a master and a slave. The slave device behaves identical to
  211. a physical terminal; the master device is used by a process to
  212. read data from and write data to the slave, thereby emulating a
  213. terminal. Typical programs for the master side are telnet servers
  214. and xterms.
  215. Linux has traditionally used the BSD-like names /dev/ptyxx for
  216. masters and /dev/ttyxx for slaves of pseudo terminals. This scheme
  217. has a number of problems. The GNU C library glibc 2.1 and later,
  218. however, supports the Unix98 naming standard: in order to acquire a
  219. pseudo terminal, a process opens /dev/ptmx; the number of the pseudo
  220. terminal is then made available to the process and the pseudo
  221. terminal slave can be accessed as /dev/pts/<number>. What was
  222. traditionally /dev/ttyp2 will then be /dev/pts/2, for example.
  223. The entries in /dev/pts/ are created on the fly by a virtual
  224. file system; therefore, if you say Y here you should say Y to
  225. "/dev/pts file system for Unix98 PTYs" as well.
  226. If you want to say Y here, you need to have the C library glibc 2.1
  227. or later (equal to libc-6.1, check with "ls -l /lib/libc.so.*").
  228. Read the instructions in <file:Documentation/Changes> pertaining to
  229. pseudo terminals. It's safe to say N.
  230. endmenu
  231. source "fs/Kconfig"
  232. source "arch/sparc/Kconfig.debug"
  233. source "security/Kconfig"
  234. source "crypto/Kconfig"
  235. source "lib/Kconfig"