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1 | # $Id: config.in,v 1.158 2002/01/24 22:14:44 davem Exp $ |
2 | # For a description of the syntax of this configuration file, | |
3 | # see the Configure script. | |
4 | # | |
5 | ||
6 | mainmenu "Linux/UltraSPARC Kernel Configuration" | |
7 | ||
5843e37e DM |
8 | config SPARC64 |
9 | bool | |
10 | default y | |
11 | help | |
12 | SPARC is a family of RISC microprocessors designed and marketed by | |
13 | Sun Microsystems, incorporated. This port covers the newer 64-bit | |
14 | UltraSPARC. The UltraLinux project maintains both the SPARC32 and | |
15 | SPARC64 ports; its web page is available at | |
16 | <http://www.ultralinux.org/>. | |
17 | ||
1da177e4 LT |
18 | config 64BIT |
19 | def_bool y | |
20 | ||
21 | config MMU | |
22 | bool | |
23 | default y | |
24 | ||
25 | config TIME_INTERPOLATION | |
26 | bool | |
27 | default y | |
28 | ||
a08b6b79 Z |
29 | config ARCH_MAY_HAVE_PC_FDC |
30 | bool | |
31 | default y | |
32 | ||
1da177e4 LT |
33 | choice |
34 | prompt "Kernel page size" | |
35 | default SPARC64_PAGE_SIZE_8KB | |
36 | ||
37 | config SPARC64_PAGE_SIZE_8KB | |
38 | bool "8KB" | |
39 | help | |
40 | This lets you select the page size of the kernel. | |
41 | ||
42 | 8KB and 64KB work quite well, since Sparc ELF sections | |
43 | provide for up to 64KB alignment. | |
44 | ||
45 | Therefore, 512KB and 4MB are for expert hackers only. | |
46 | ||
47 | If you don't know what to do, choose 8KB. | |
48 | ||
49 | config SPARC64_PAGE_SIZE_64KB | |
50 | bool "64KB" | |
51 | ||
52 | config SPARC64_PAGE_SIZE_512KB | |
53 | bool "512KB" | |
54 | ||
55 | config SPARC64_PAGE_SIZE_4MB | |
56 | bool "4MB" | |
57 | ||
58 | endchoice | |
59 | ||
bb49bcda DM |
60 | config SECCOMP |
61 | bool "Enable seccomp to safely compute untrusted bytecode" | |
62 | depends on PROC_FS | |
63 | default y | |
64 | help | |
65 | This kernel feature is useful for number crunching applications | |
66 | that may need to compute untrusted bytecode during their | |
67 | execution. By using pipes or other transports made available to | |
68 | the process as file descriptors supporting the read/write | |
69 | syscalls, it's possible to isolate those applications in | |
70 | their own address space using seccomp. Once seccomp is | |
71 | enabled via /proc/<pid>/seccomp, it cannot be disabled | |
72 | and the task is only allowed to execute a few safe syscalls | |
73 | defined by each seccomp mode. | |
74 | ||
75 | If unsure, say Y. Only embedded should say N here. | |
76 | ||
a6524813 DM |
77 | source kernel/Kconfig.hz |
78 | ||
1da177e4 LT |
79 | source "init/Kconfig" |
80 | ||
81 | config SYSVIPC_COMPAT | |
82 | bool | |
83 | depends on COMPAT && SYSVIPC | |
84 | default y | |
85 | ||
86 | menu "General machine setup" | |
87 | ||
1da177e4 LT |
88 | config SMP |
89 | bool "Symmetric multi-processing support" | |
90 | ---help--- | |
91 | This enables support for systems with more than one CPU. If you have | |
92 | a system with only one CPU, say N. If you have a system with more than | |
93 | one CPU, say Y. | |
94 | ||
95 | If you say N here, the kernel will run on single and multiprocessor | |
96 | machines, but will use only one CPU of a multiprocessor machine. If | |
97 | you say Y here, the kernel will run on many, but not all, | |
98 | singleprocessor machines. On a singleprocessor machine, the kernel | |
99 | will run faster if you say N here. | |
100 | ||
101 | People using multiprocessor machines who say Y here should also say | |
102 | Y to "Enhanced Real Time Clock Support", below. The "Advanced Power | |
103 | Management" code will be disabled if you say Y here. | |
104 | ||
105 | See also the <file:Documentation/smp.txt>, | |
106 | <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at | |
107 | <http://www.tldp.org/docs.html#howto>. | |
108 | ||
109 | If you don't know what to do here, say N. | |
110 | ||
111 | config PREEMPT | |
112 | bool "Preemptible Kernel" | |
113 | help | |
114 | This option reduces the latency of the kernel when reacting to | |
115 | real-time or interactive events by allowing a low priority process to | |
116 | be preempted even if it is in kernel mode executing a system call. | |
117 | This allows applications to run more reliably even when the system is | |
118 | under load. | |
119 | ||
120 | Say Y here if you are building a kernel for a desktop, embedded | |
121 | or real-time system. Say N if you are unsure. | |
122 | ||
123 | config NR_CPUS | |
124 | int "Maximum number of CPUs (2-64)" | |
125 | range 2 64 | |
126 | depends on SMP | |
127 | default "32" | |
128 | ||
129 | source "drivers/cpufreq/Kconfig" | |
130 | ||
131 | config US3_FREQ | |
132 | tristate "UltraSPARC-III CPU Frequency driver" | |
133 | depends on CPU_FREQ | |
134 | select CPU_FREQ_TABLE | |
135 | help | |
136 | This adds the CPUFreq driver for UltraSPARC-III processors. | |
137 | ||
138 | For details, take a look at <file:Documentation/cpu-freq>. | |
139 | ||
140 | If in doubt, say N. | |
141 | ||
142 | config US2E_FREQ | |
143 | tristate "UltraSPARC-IIe CPU Frequency driver" | |
144 | depends on CPU_FREQ | |
145 | select CPU_FREQ_TABLE | |
146 | help | |
147 | This adds the CPUFreq driver for UltraSPARC-IIe processors. | |
148 | ||
149 | For details, take a look at <file:Documentation/cpu-freq>. | |
150 | ||
151 | If in doubt, say N. | |
152 | ||
1da177e4 LT |
153 | # Global things across all Sun machines. |
154 | config RWSEM_GENERIC_SPINLOCK | |
155 | bool | |
156 | ||
157 | config RWSEM_XCHGADD_ALGORITHM | |
158 | bool | |
159 | default y | |
160 | ||
161 | config GENERIC_CALIBRATE_DELAY | |
162 | bool | |
163 | default y | |
164 | ||
165 | choice | |
166 | prompt "SPARC64 Huge TLB Page Size" | |
167 | depends on HUGETLB_PAGE | |
168 | default HUGETLB_PAGE_SIZE_4MB | |
169 | ||
170 | config HUGETLB_PAGE_SIZE_4MB | |
171 | bool "4MB" | |
172 | ||
173 | config HUGETLB_PAGE_SIZE_512K | |
174 | depends on !SPARC64_PAGE_SIZE_4MB | |
175 | bool "512K" | |
176 | ||
177 | config HUGETLB_PAGE_SIZE_64K | |
178 | depends on !SPARC64_PAGE_SIZE_4MB && !SPARC64_PAGE_SIZE_512K | |
179 | bool "64K" | |
180 | ||
181 | endchoice | |
182 | ||
5843e37e DM |
183 | endmenu |
184 | ||
5843e37e DM |
185 | source "mm/Kconfig" |
186 | ||
1da177e4 LT |
187 | config GENERIC_ISA_DMA |
188 | bool | |
189 | default y | |
190 | ||
191 | config ISA | |
192 | bool | |
193 | help | |
194 | Find out whether you have ISA slots on your motherboard. ISA is the | |
195 | name of a bus system, i.e. the way the CPU talks to the other stuff | |
196 | inside your box. Other bus systems are PCI, EISA, MicroChannel | |
197 | (MCA) or VESA. ISA is an older system, now being displaced by PCI; | |
198 | newer boards don't support it. If you have ISA, say Y, otherwise N. | |
199 | ||
200 | config ISAPNP | |
201 | bool | |
202 | help | |
203 | Say Y here if you would like support for ISA Plug and Play devices. | |
204 | Some information is in <file:Documentation/isapnp.txt>. | |
205 | ||
206 | To compile this driver as a module, choose M here: the | |
207 | module will be called isapnp. | |
208 | ||
209 | If unsure, say Y. | |
210 | ||
211 | config EISA | |
212 | bool | |
213 | ---help--- | |
214 | The Extended Industry Standard Architecture (EISA) bus was | |
215 | developed as an open alternative to the IBM MicroChannel bus. | |
216 | ||
217 | The EISA bus provided some of the features of the IBM MicroChannel | |
218 | bus while maintaining backward compatibility with cards made for | |
219 | the older ISA bus. The EISA bus saw limited use between 1988 and | |
220 | 1995 when it was made obsolete by the PCI bus. | |
221 | ||
222 | Say Y here if you are building a kernel for an EISA-based machine. | |
223 | ||
224 | Otherwise, say N. | |
225 | ||
226 | config MCA | |
227 | bool | |
228 | help | |
229 | MicroChannel Architecture is found in some IBM PS/2 machines and | |
230 | laptops. It is a bus system similar to PCI or ISA. See | |
231 | <file:Documentation/mca.txt> (and especially the web page given | |
232 | there) before attempting to build an MCA bus kernel. | |
233 | ||
234 | config PCMCIA | |
235 | tristate | |
236 | ---help--- | |
237 | Say Y here if you want to attach PCMCIA- or PC-cards to your Linux | |
238 | computer. These are credit-card size devices such as network cards, | |
239 | modems or hard drives often used with laptops computers. There are | |
240 | actually two varieties of these cards: the older 16 bit PCMCIA cards | |
241 | and the newer 32 bit CardBus cards. If you want to use CardBus | |
242 | cards, you need to say Y here and also to "CardBus support" below. | |
243 | ||
244 | To use your PC-cards, you will need supporting software from David | |
245 | Hinds' pcmcia-cs package (see the file <file:Documentation/Changes> | |
246 | for location). Please also read the PCMCIA-HOWTO, available from | |
247 | <http://www.tldp.org/docs.html#howto>. | |
248 | ||
249 | To compile this driver as modules, choose M here: the | |
250 | modules will be called pcmcia_core and ds. | |
251 | ||
252 | config SBUS | |
253 | bool | |
254 | default y | |
255 | ||
256 | config SBUSCHAR | |
257 | bool | |
258 | default y | |
259 | ||
260 | config SUN_AUXIO | |
261 | bool | |
262 | default y | |
263 | ||
264 | config SUN_IO | |
265 | bool | |
266 | default y | |
267 | ||
268 | config PCI | |
269 | bool "PCI support" | |
270 | help | |
271 | Find out whether you have a PCI motherboard. PCI is the name of a | |
272 | bus system, i.e. the way the CPU talks to the other stuff inside | |
273 | your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or | |
274 | VESA. If you have PCI, say Y, otherwise N. | |
275 | ||
276 | The PCI-HOWTO, available from | |
277 | <http://www.tldp.org/docs.html#howto>, contains valuable | |
278 | information about which PCI hardware does work under Linux and which | |
279 | doesn't. | |
280 | ||
281 | config PCI_DOMAINS | |
282 | bool | |
283 | default PCI | |
284 | ||
1da177e4 LT |
285 | source "drivers/pci/Kconfig" |
286 | ||
287 | config SUN_OPENPROMFS | |
288 | tristate "Openprom tree appears in /proc/openprom" | |
289 | help | |
290 | If you say Y, the OpenPROM device tree will be available as a | |
291 | virtual file system, which you can mount to /proc/openprom by "mount | |
292 | -t openpromfs none /proc/openprom". | |
293 | ||
294 | To compile the /proc/openprom support as a module, choose M here: the | |
295 | module will be called openpromfs. If unsure, choose M. | |
296 | ||
297 | config SPARC32_COMPAT | |
298 | bool "Kernel support for Linux/Sparc 32bit binary compatibility" | |
299 | help | |
300 | This allows you to run 32-bit binaries on your Ultra. | |
301 | Everybody wants this; say Y. | |
302 | ||
303 | config COMPAT | |
304 | bool | |
305 | depends on SPARC32_COMPAT | |
306 | default y | |
307 | ||
308 | config UID16 | |
309 | bool | |
310 | depends on SPARC32_COMPAT | |
311 | default y | |
312 | ||
313 | config BINFMT_ELF32 | |
314 | tristate "Kernel support for 32-bit ELF binaries" | |
315 | depends on SPARC32_COMPAT | |
316 | help | |
317 | This allows you to run 32-bit Linux/ELF binaries on your Ultra. | |
318 | Everybody wants this; say Y. | |
319 | ||
320 | config BINFMT_AOUT32 | |
321 | bool "Kernel support for 32-bit (ie. SunOS) a.out binaries" | |
322 | depends on SPARC32_COMPAT | |
323 | help | |
324 | This allows you to run 32-bit a.out format binaries on your Ultra. | |
325 | If you want to run SunOS binaries (see SunOS binary emulation below) | |
326 | or other a.out binaries, say Y. If unsure, say N. | |
327 | ||
5843e37e DM |
328 | menu "Executable file formats" |
329 | ||
1da177e4 LT |
330 | source "fs/Kconfig.binfmt" |
331 | ||
332 | config SUNOS_EMUL | |
333 | bool "SunOS binary emulation" | |
334 | depends on BINFMT_AOUT32 | |
335 | help | |
336 | This allows you to run most SunOS binaries. If you want to do this, | |
337 | say Y here and place appropriate files in /usr/gnemul/sunos. See | |
338 | <http://www.ultralinux.org/faq.html> for more information. If you | |
339 | want to run SunOS binaries on an Ultra you must also say Y to | |
340 | "Kernel support for 32-bit a.out binaries" above. | |
341 | ||
342 | config SOLARIS_EMUL | |
343 | tristate "Solaris binary emulation (EXPERIMENTAL)" | |
344 | depends on SPARC32_COMPAT && EXPERIMENTAL | |
345 | help | |
346 | This is experimental code which will enable you to run (many) | |
347 | Solaris binaries on your SPARC Linux machine. | |
348 | ||
349 | To compile this code as a module, choose M here: the | |
350 | module will be called solaris. | |
351 | ||
5843e37e | 352 | endmenu |
1da177e4 LT |
353 | |
354 | config CMDLINE_BOOL | |
355 | bool "Default bootloader kernel arguments" | |
356 | ||
357 | config CMDLINE | |
358 | string "Initial kernel command string" | |
359 | depends on CMDLINE_BOOL | |
360 | default "console=ttyS0,9600 root=/dev/sda1" | |
361 | help | |
362 | Say Y here if you want to be able to pass default arguments to | |
363 | the kernel. This will be overridden by the bootloader, if you | |
364 | use one (such as SILO). This is most useful if you want to boot | |
365 | a kernel from TFTP, and want default options to be available | |
366 | with having them passed on the command line. | |
367 | ||
368 | NOTE: This option WILL override the PROM bootargs setting! | |
369 | ||
d5950b43 SR |
370 | source "net/Kconfig" |
371 | ||
5843e37e | 372 | source "drivers/Kconfig" |
1da177e4 LT |
373 | |
374 | source "drivers/sbus/char/Kconfig" | |
375 | ||
1da177e4 LT |
376 | source "drivers/fc4/Kconfig" |
377 | ||
1da177e4 LT |
378 | source "fs/Kconfig" |
379 | ||
1da177e4 LT |
380 | source "arch/sparc64/oprofile/Kconfig" |
381 | ||
382 | source "arch/sparc64/Kconfig.debug" | |
383 | ||
384 | source "security/Kconfig" | |
385 | ||
386 | source "crypto/Kconfig" | |
387 | ||
388 | source "lib/Kconfig" |