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1da177e4 LT |
1 | # For a description of the syntax of this configuration file, |
2 | # see Documentation/kbuild/kconfig-language.txt. | |
3 | # | |
4 | ||
5 | mainmenu "Linux/SPARC Kernel Configuration" | |
6 | ||
7 | config MMU | |
8 | bool | |
9 | default y | |
10 | ||
1da177e4 LT |
11 | config HIGHMEM |
12 | bool | |
13 | default y | |
14 | ||
5ac6da66 CL |
15 | config ZONE_DMA |
16 | bool | |
17 | default y | |
18 | ||
1da177e4 LT |
19 | config GENERIC_ISA_DMA |
20 | bool | |
21 | default y | |
22 | ||
0785b9dc SR |
23 | config ARCH_NO_VIRT_TO_BUS |
24 | def_bool y | |
25 | ||
97e873e5 SR |
26 | config OF |
27 | def_bool y | |
28 | ||
bdc80787 PA |
29 | config HZ |
30 | int | |
31 | default 100 | |
32 | ||
1da177e4 LT |
33 | source "init/Kconfig" |
34 | ||
35 | menu "General machine setup" | |
36 | ||
1da177e4 LT |
37 | config SMP |
38 | bool "Symmetric multi-processing support (does not work on sun4/sun4c)" | |
1da177e4 LT |
39 | ---help--- |
40 | This enables support for systems with more than one CPU. If you have | |
41 | a system with only one CPU, say N. If you have a system with more | |
42 | than one CPU, say Y. | |
43 | ||
44 | If you say N here, the kernel will run on single and multiprocessor | |
45 | machines, but will use only one CPU of a multiprocessor machine. If | |
46 | you say Y here, the kernel will run on many, but not all, | |
47 | singleprocessor machines. On a singleprocessor machine, the kernel | |
48 | will run faster if you say N here. | |
49 | ||
50 | People using multiprocessor machines who say Y here should also say | |
51 | Y to "Enhanced Real Time Clock Support", below. The "Advanced Power | |
52 | Management" code will be disabled if you say Y here. | |
53 | ||
03502faa AB |
54 | See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO |
55 | available at <http://www.tldp.org/docs.html#howto>. | |
1da177e4 LT |
56 | |
57 | If you don't know what to do here, say N. | |
58 | ||
59 | config NR_CPUS | |
60 | int "Maximum number of CPUs (2-32)" | |
61 | range 2 32 | |
62 | depends on SMP | |
63 | default "32" | |
64 | ||
0b57ee9e AB |
65 | config SPARC |
66 | bool | |
67 | default y | |
ec7748b5 | 68 | select HAVE_IDE |
42d4b839 | 69 | select HAVE_OPROFILE |
e2fdd7fd | 70 | select HAVE_ARCH_KGDB if !SMP |
0b57ee9e | 71 | |
1da177e4 LT |
72 | # Identify this as a Sparc32 build |
73 | config SPARC32 | |
74 | bool | |
75 | default y | |
76 | help | |
77 | SPARC is a family of RISC microprocessors designed and marketed by | |
78 | Sun Microsystems, incorporated. They are very widely found in Sun | |
79 | workstations and clones. This port covers the original 32-bit SPARC; | |
80 | it is old and stable and usually considered one of the "big three" | |
81 | along with the Intel and Alpha ports. The UltraLinux project | |
82 | maintains both the SPARC32 and SPARC64 ports; its web page is | |
83 | available at <http://www.ultralinux.org/>. | |
84 | ||
85 | # Global things across all Sun machines. | |
86 | config ISA | |
87 | bool | |
88 | help | |
89 | ISA is found on Espresso only and is not supported currently. | |
90 | Say N | |
91 | ||
92 | config EISA | |
93 | bool | |
94 | help | |
95 | EISA is not supported. | |
96 | Say N | |
97 | ||
98 | config MCA | |
99 | bool | |
100 | help | |
101 | MCA is not supported. | |
102 | Say N | |
103 | ||
104 | config PCMCIA | |
105 | tristate | |
106 | ---help--- | |
107 | Say Y here if you want to attach PCMCIA- or PC-cards to your Linux | |
108 | computer. These are credit-card size devices such as network cards, | |
109 | modems or hard drives often used with laptops computers. There are | |
110 | actually two varieties of these cards: the older 16 bit PCMCIA cards | |
111 | and the newer 32 bit CardBus cards. If you want to use CardBus | |
112 | cards, you need to say Y here and also to "CardBus support" below. | |
113 | ||
114 | To use your PC-cards, you will need supporting software from David | |
115 | Hinds' pcmcia-cs package (see the file <file:Documentation/Changes> | |
116 | for location). Please also read the PCMCIA-HOWTO, available from | |
117 | <http://www.tldp.org/docs.html#howto>. | |
118 | ||
119 | To compile this driver as modules, choose M here: the | |
120 | modules will be called pcmcia_core and ds. | |
121 | ||
122 | config SBUS | |
123 | bool | |
124 | default y | |
125 | ||
126 | config SBUSCHAR | |
127 | bool | |
128 | default y | |
129 | ||
130 | config SERIAL_CONSOLE | |
131 | bool | |
132 | default y | |
133 | ---help--- | |
134 | If you say Y here, it will be possible to use a serial port as the | |
135 | system console (the system console is the device which receives all | |
136 | kernel messages and warnings and which allows logins in single user | |
137 | mode). This could be useful if some terminal or printer is connected | |
138 | to that serial port. | |
139 | ||
140 | Even if you say Y here, the currently visible virtual console | |
141 | (/dev/tty0) will still be used as the system console by default, but | |
142 | you can alter that using a kernel command line option such as | |
143 | "console=ttyS1". (Try "man bootparam" or see the documentation of | |
144 | your boot loader (silo) about how to pass options to the kernel at | |
145 | boot time.) | |
146 | ||
147 | If you don't have a graphics card installed and you say Y here, the | |
148 | kernel will automatically use the first serial line, /dev/ttyS0, as | |
149 | system console. | |
150 | ||
151 | If unsure, say N. | |
152 | ||
153 | config SUN_AUXIO | |
154 | bool | |
155 | default y | |
156 | ||
157 | config SUN_IO | |
158 | bool | |
159 | default y | |
160 | ||
161 | config RWSEM_GENERIC_SPINLOCK | |
162 | bool | |
163 | default y | |
164 | ||
165 | config RWSEM_XCHGADD_ALGORITHM | |
166 | bool | |
167 | ||
d59288b7 AM |
168 | config GENERIC_FIND_NEXT_BIT |
169 | bool | |
170 | default y | |
171 | ||
172 | config GENERIC_HWEIGHT | |
173 | bool | |
174 | default y | |
175 | ||
1da177e4 LT |
176 | config GENERIC_CALIBRATE_DELAY |
177 | bool | |
178 | default y | |
179 | ||
a08b6b79 Z |
180 | config ARCH_MAY_HAVE_PC_FDC |
181 | bool | |
182 | default y | |
183 | ||
f0d1b0b3 DH |
184 | config ARCH_HAS_ILOG2_U32 |
185 | bool | |
186 | default n | |
187 | ||
188 | config ARCH_HAS_ILOG2_U64 | |
189 | bool | |
190 | default n | |
191 | ||
5f81941c MH |
192 | config EMULATED_CMPXCHG |
193 | bool | |
194 | default y | |
195 | help | |
196 | Sparc32 does not have a CAS instruction like sparc64. cmpxchg() | |
197 | is emulated, and therefore it is not completely atomic. | |
198 | ||
1da177e4 LT |
199 | config SUN_PM |
200 | bool | |
201 | default y | |
202 | help | |
203 | Enable power management and CPU standby features on supported | |
204 | SPARC platforms. | |
205 | ||
206 | config SUN4 | |
207 | bool "Support for SUN4 machines (disables SUN4[CDM] support)" | |
208 | depends on !SMP | |
209 | default n | |
210 | help | |
211 | Say Y here if, and only if, your machine is a sun4. Note that | |
212 | a kernel compiled with this option will run only on sun4. | |
213 | (And the current version will probably work only on sun4/330.) | |
214 | ||
215 | if !SUN4 | |
216 | ||
217 | config PCI | |
218 | bool "Support for PCI and PS/2 keyboard/mouse" | |
219 | help | |
220 | CONFIG_PCI is needed for all JavaStation's (including MrCoffee), | |
221 | CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC. | |
222 | All of these platforms are extremely obscure, so say N if unsure. | |
223 | ||
36e23590 MW |
224 | config PCI_SYSCALL |
225 | def_bool PCI | |
226 | ||
1da177e4 LT |
227 | source "drivers/pci/Kconfig" |
228 | ||
229 | endif | |
230 | ||
7155c9f5 AV |
231 | config NO_DMA |
232 | def_bool !PCI | |
233 | ||
1da177e4 LT |
234 | config SUN_OPENPROMFS |
235 | tristate "Openprom tree appears in /proc/openprom" | |
236 | help | |
237 | If you say Y, the OpenPROM device tree will be available as a | |
238 | virtual file system, which you can mount to /proc/openprom by "mount | |
239 | -t openpromfs none /proc/openprom". | |
240 | ||
241 | To compile the /proc/openprom support as a module, choose M here: the | |
242 | module will be called openpromfs. | |
243 | ||
244 | Only choose N if you know in advance that you will not need to modify | |
245 | OpenPROM settings on the running system. | |
246 | ||
ee1858d3 LK |
247 | config SPARC_LED |
248 | tristate "Sun4m LED driver" | |
249 | help | |
250 | This driver toggles the front-panel LED on sun4m systems | |
3cb2fccc ML |
251 | in a user-specifiable manner. Its state can be probed |
252 | by reading /proc/led and its blinking mode can be changed | |
ee1858d3 LK |
253 | via writes to /proc/led |
254 | ||
1da177e4 LT |
255 | source "fs/Kconfig.binfmt" |
256 | ||
30aaa808 WLII |
257 | source "mm/Kconfig" |
258 | ||
259 | endmenu | |
260 | ||
d5950b43 SR |
261 | source "net/Kconfig" |
262 | ||
30aaa808 | 263 | source "drivers/Kconfig" |
1da177e4 | 264 | |
1da177e4 LT |
265 | if !SUN4 |
266 | source "drivers/sbus/char/Kconfig" | |
267 | endif | |
268 | ||
1da177e4 LT |
269 | # This one must be before the filesystem configs. -DaveM |
270 | ||
271 | menu "Unix98 PTY support" | |
272 | ||
273 | config UNIX98_PTYS | |
274 | bool "Unix98 PTY support" | |
275 | ---help--- | |
276 | A pseudo terminal (PTY) is a software device consisting of two | |
277 | halves: a master and a slave. The slave device behaves identical to | |
278 | a physical terminal; the master device is used by a process to | |
279 | read data from and write data to the slave, thereby emulating a | |
280 | terminal. Typical programs for the master side are telnet servers | |
281 | and xterms. | |
282 | ||
283 | Linux has traditionally used the BSD-like names /dev/ptyxx for | |
284 | masters and /dev/ttyxx for slaves of pseudo terminals. This scheme | |
285 | has a number of problems. The GNU C library glibc 2.1 and later, | |
286 | however, supports the Unix98 naming standard: in order to acquire a | |
287 | pseudo terminal, a process opens /dev/ptmx; the number of the pseudo | |
288 | terminal is then made available to the process and the pseudo | |
289 | terminal slave can be accessed as /dev/pts/<number>. What was | |
290 | traditionally /dev/ttyp2 will then be /dev/pts/2, for example. | |
291 | ||
292 | The entries in /dev/pts/ are created on the fly by a virtual | |
293 | file system; therefore, if you say Y here you should say Y to | |
294 | "/dev/pts file system for Unix98 PTYs" as well. | |
295 | ||
296 | If you want to say Y here, you need to have the C library glibc 2.1 | |
297 | or later (equal to libc-6.1, check with "ls -l /lib/libc.so.*"). | |
298 | Read the instructions in <file:Documentation/Changes> pertaining to | |
299 | pseudo terminals. It's safe to say N. | |
300 | ||
301 | config UNIX98_PTY_COUNT | |
302 | int "Maximum number of Unix98 PTYs in use (0-2048)" | |
303 | depends on UNIX98_PTYS | |
304 | default "256" | |
305 | help | |
306 | The maximum number of Unix98 PTYs that can be used at any one time. | |
307 | The default is 256, and should be enough for desktop systems. Server | |
308 | machines which support incoming telnet/rlogin/ssh connections and/or | |
309 | serve several X terminals may want to increase this: every incoming | |
310 | connection and every xterm uses up one PTY. | |
311 | ||
312 | When not in use, each additional set of 256 PTYs occupy | |
313 | approximately 8 KB of kernel memory on 32-bit architectures. | |
314 | ||
315 | endmenu | |
316 | ||
1da177e4 LT |
317 | source "fs/Kconfig" |
318 | ||
1da177e4 LT |
319 | source "arch/sparc/Kconfig.debug" |
320 | ||
321 | source "security/Kconfig" | |
322 | ||
323 | source "crypto/Kconfig" | |
324 | ||
325 | source "lib/Kconfig" |