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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 | ||
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" |