[VLAN]: Create proc entries in the proper net.
[deliverable/linux.git] / arch / sparc64 / Kconfig
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
8 config SPARC
9 bool
10 default y
11 select HAVE_OPROFILE
12 select HAVE_KPROBES
13 select HAVE_KRETPROBES
14
15 config SPARC64
16 bool
17 default y
18 select HAVE_IDE
19 help
20 SPARC is a family of RISC microprocessors designed and marketed by
21 Sun Microsystems, incorporated. This port covers the newer 64-bit
22 UltraSPARC. The UltraLinux project maintains both the SPARC32 and
23 SPARC64 ports; its web page is available at
24 <http://www.ultralinux.org/>.
25
26 config GENERIC_TIME
27 bool
28 default y
29
30 config GENERIC_CMOS_UPDATE
31 bool
32 default y
33
34 config GENERIC_CLOCKEVENTS
35 bool
36 default y
37
38 config 64BIT
39 def_bool y
40
41 config MMU
42 bool
43 default y
44
45 config IOMMU_HELPER
46 bool
47 default y
48
49 config QUICKLIST
50 bool
51 default y
52
53 config STACKTRACE_SUPPORT
54 bool
55 default y
56
57 config LOCKDEP_SUPPORT
58 bool
59 default y
60
61 config ARCH_MAY_HAVE_PC_FDC
62 bool
63 default y
64
65 config ARCH_HAS_ILOG2_U32
66 bool
67 default n
68
69 config ARCH_HAS_ILOG2_U64
70 bool
71 default n
72
73 config AUDIT_ARCH
74 bool
75 default y
76
77 config HAVE_SETUP_PER_CPU_AREA
78 def_bool y
79
80 config ARCH_NO_VIRT_TO_BUS
81 def_bool y
82
83 config OF
84 def_bool y
85
86 config GENERIC_HARDIRQS_NO__DO_IRQ
87 bool
88 def_bool y
89
90 config ARCH_SUPPORTS_AOUT
91 def_bool y
92
93 choice
94 prompt "Kernel page size"
95 default SPARC64_PAGE_SIZE_8KB
96
97 config SPARC64_PAGE_SIZE_8KB
98 bool "8KB"
99 help
100 This lets you select the page size of the kernel.
101
102 8KB and 64KB work quite well, since Sparc ELF sections
103 provide for up to 64KB alignment.
104
105 Therefore, 512KB and 4MB are for expert hackers only.
106
107 If you don't know what to do, choose 8KB.
108
109 config SPARC64_PAGE_SIZE_64KB
110 bool "64KB"
111
112 config SPARC64_PAGE_SIZE_512KB
113 bool "512KB"
114
115 config SPARC64_PAGE_SIZE_4MB
116 bool "4MB"
117
118 endchoice
119
120 config SECCOMP
121 bool "Enable seccomp to safely compute untrusted bytecode"
122 depends on PROC_FS
123 default y
124 help
125 This kernel feature is useful for number crunching applications
126 that may need to compute untrusted bytecode during their
127 execution. By using pipes or other transports made available to
128 the process as file descriptors supporting the read/write
129 syscalls, it's possible to isolate those applications in
130 their own address space using seccomp. Once seccomp is
131 enabled via /proc/<pid>/seccomp, it cannot be disabled
132 and the task is only allowed to execute a few safe syscalls
133 defined by each seccomp mode.
134
135 If unsure, say Y. Only embedded should say N here.
136
137 source kernel/Kconfig.hz
138
139 config HOTPLUG_CPU
140 bool "Support for hot-pluggable CPUs"
141 depends on SMP
142 select HOTPLUG
143 ---help---
144 Say Y here to experiment with turning CPUs off and on. CPUs
145 can be controlled through /sys/devices/system/cpu/cpu#.
146 Say N if you want to disable CPU hotplug.
147
148 source "init/Kconfig"
149
150 config SYSVIPC_COMPAT
151 bool
152 depends on COMPAT && SYSVIPC
153 default y
154
155 config GENERIC_HARDIRQS
156 bool
157 default y
158
159 menu "General machine setup"
160
161 source "kernel/time/Kconfig"
162
163 config SMP
164 bool "Symmetric multi-processing support"
165 ---help---
166 This enables support for systems with more than one CPU. If you have
167 a system with only one CPU, say N. If you have a system with more than
168 one CPU, say Y.
169
170 If you say N here, the kernel will run on single and multiprocessor
171 machines, but will use only one CPU of a multiprocessor machine. If
172 you say Y here, the kernel will run on many, but not all,
173 singleprocessor machines. On a singleprocessor machine, the kernel
174 will run faster if you say N here.
175
176 People using multiprocessor machines who say Y here should also say
177 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
178 Management" code will be disabled if you say Y here.
179
180 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
181 available at <http://www.tldp.org/docs.html#howto>.
182
183 If you don't know what to do here, say N.
184
185 config NR_CPUS
186 int "Maximum number of CPUs (2-1024)"
187 range 2 1024
188 depends on SMP
189 default "64"
190
191 source "drivers/cpufreq/Kconfig"
192
193 config US3_FREQ
194 tristate "UltraSPARC-III CPU Frequency driver"
195 depends on CPU_FREQ
196 select CPU_FREQ_TABLE
197 help
198 This adds the CPUFreq driver for UltraSPARC-III processors.
199
200 For details, take a look at <file:Documentation/cpu-freq>.
201
202 If in doubt, say N.
203
204 config US2E_FREQ
205 tristate "UltraSPARC-IIe CPU Frequency driver"
206 depends on CPU_FREQ
207 select CPU_FREQ_TABLE
208 help
209 This adds the CPUFreq driver for UltraSPARC-IIe processors.
210
211 For details, take a look at <file:Documentation/cpu-freq>.
212
213 If in doubt, say N.
214
215 # Global things across all Sun machines.
216 config GENERIC_LOCKBREAK
217 bool
218 default y
219 depends on SMP && PREEMPT
220
221 config RWSEM_GENERIC_SPINLOCK
222 bool
223
224 config RWSEM_XCHGADD_ALGORITHM
225 bool
226 default y
227
228 config GENERIC_FIND_NEXT_BIT
229 bool
230 default y
231
232 config GENERIC_HWEIGHT
233 bool
234 default y if !ULTRA_HAS_POPULATION_COUNT
235
236 config GENERIC_CALIBRATE_DELAY
237 bool
238 default y
239
240 choice
241 prompt "SPARC64 Huge TLB Page Size"
242 depends on HUGETLB_PAGE
243 default HUGETLB_PAGE_SIZE_4MB
244
245 config HUGETLB_PAGE_SIZE_4MB
246 bool "4MB"
247
248 config HUGETLB_PAGE_SIZE_512K
249 depends on !SPARC64_PAGE_SIZE_4MB && !SPARC64_PAGE_SIZE_512KB
250 bool "512K"
251
252 config HUGETLB_PAGE_SIZE_64K
253 depends on !SPARC64_PAGE_SIZE_4MB && !SPARC64_PAGE_SIZE_512KB && !SPARC64_PAGE_SIZE_64KB
254 bool "64K"
255
256 endchoice
257
258 endmenu
259
260 config ARCH_SELECT_MEMORY_MODEL
261 def_bool y
262
263 config ARCH_SPARSEMEM_ENABLE
264 def_bool y
265 select SPARSEMEM_VMEMMAP_ENABLE
266
267 config ARCH_SPARSEMEM_DEFAULT
268 def_bool y
269
270 source "mm/Kconfig"
271
272 config ISA
273 bool
274 help
275 Find out whether you have ISA slots on your motherboard. ISA is the
276 name of a bus system, i.e. the way the CPU talks to the other stuff
277 inside your box. Other bus systems are PCI, EISA, MicroChannel
278 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
279 newer boards don't support it. If you have ISA, say Y, otherwise N.
280
281 config ISAPNP
282 bool
283 help
284 Say Y here if you would like support for ISA Plug and Play devices.
285 Some information is in <file:Documentation/isapnp.txt>.
286
287 To compile this driver as a module, choose M here: the
288 module will be called isapnp.
289
290 If unsure, say Y.
291
292 config EISA
293 bool
294 ---help---
295 The Extended Industry Standard Architecture (EISA) bus was
296 developed as an open alternative to the IBM MicroChannel bus.
297
298 The EISA bus provided some of the features of the IBM MicroChannel
299 bus while maintaining backward compatibility with cards made for
300 the older ISA bus. The EISA bus saw limited use between 1988 and
301 1995 when it was made obsolete by the PCI bus.
302
303 Say Y here if you are building a kernel for an EISA-based machine.
304
305 Otherwise, say N.
306
307 config MCA
308 bool
309 help
310 MicroChannel Architecture is found in some IBM PS/2 machines and
311 laptops. It is a bus system similar to PCI or ISA. See
312 <file:Documentation/mca.txt> (and especially the web page given
313 there) before attempting to build an MCA bus kernel.
314
315 config PCMCIA
316 tristate
317 ---help---
318 Say Y here if you want to attach PCMCIA- or PC-cards to your Linux
319 computer. These are credit-card size devices such as network cards,
320 modems or hard drives often used with laptops computers. There are
321 actually two varieties of these cards: the older 16 bit PCMCIA cards
322 and the newer 32 bit CardBus cards. If you want to use CardBus
323 cards, you need to say Y here and also to "CardBus support" below.
324
325 To use your PC-cards, you will need supporting software from David
326 Hinds' pcmcia-cs package (see the file <file:Documentation/Changes>
327 for location). Please also read the PCMCIA-HOWTO, available from
328 <http://www.tldp.org/docs.html#howto>.
329
330 To compile this driver as modules, choose M here: the
331 modules will be called pcmcia_core and ds.
332
333 config SBUS
334 bool
335 default y
336
337 config SBUSCHAR
338 bool
339 default y
340
341 config SUN_AUXIO
342 bool
343 default y
344
345 config SUN_IO
346 bool
347 default y
348
349 config SUN_LDOMS
350 bool "Sun Logical Domains support"
351 help
352 Say Y here is you want to support virtual devices via
353 Logical Domains.
354
355 config PCI
356 bool "PCI support"
357 select ARCH_SUPPORTS_MSI
358 help
359 Find out whether you have a PCI motherboard. PCI is the name of a
360 bus system, i.e. the way the CPU talks to the other stuff inside
361 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
362 VESA. If you have PCI, say Y, otherwise N.
363
364 config PCI_DOMAINS
365 def_bool PCI
366
367 config PCI_SYSCALL
368 def_bool PCI
369
370 source "drivers/pci/Kconfig"
371
372 config SUN_OPENPROMFS
373 tristate "Openprom tree appears in /proc/openprom"
374 help
375 If you say Y, the OpenPROM device tree will be available as a
376 virtual file system, which you can mount to /proc/openprom by "mount
377 -t openpromfs none /proc/openprom".
378
379 To compile the /proc/openprom support as a module, choose M here: the
380 module will be called openpromfs. If unsure, choose M.
381
382 config SPARC32_COMPAT
383 bool "Kernel support for Linux/Sparc 32bit binary compatibility"
384 help
385 This allows you to run 32-bit binaries on your Ultra.
386 Everybody wants this; say Y.
387
388 config COMPAT
389 bool
390 depends on SPARC32_COMPAT
391 default y
392 select COMPAT_BINFMT_ELF
393
394 config BINFMT_AOUT32
395 bool "Kernel support for 32-bit (ie. SunOS) a.out binaries"
396 depends on SPARC32_COMPAT && ARCH_SUPPORTS_AOUT
397 help
398 This allows you to run 32-bit a.out format binaries on your Ultra.
399 If you want to run SunOS binaries (see SunOS binary emulation below)
400 or other a.out binaries, say Y. If unsure, say N.
401
402 menu "Executable file formats"
403
404 source "fs/Kconfig.binfmt"
405
406 config SUNOS_EMUL
407 bool "SunOS binary emulation"
408 depends on BINFMT_AOUT32
409 help
410 This allows you to run most SunOS binaries. If you want to do this,
411 say Y here and place appropriate files in /usr/gnemul/sunos. See
412 <http://www.ultralinux.org/faq.html> for more information. If you
413 want to run SunOS binaries on an Ultra you must also say Y to
414 "Kernel support for 32-bit a.out binaries" above.
415
416 config SOLARIS_EMUL
417 tristate "Solaris binary emulation (EXPERIMENTAL)"
418 depends on SPARC32_COMPAT && NET && EXPERIMENTAL
419 help
420 This is experimental code which will enable you to run (many)
421 Solaris binaries on your SPARC Linux machine.
422
423 To compile this code as a module, choose M here: the
424 module will be called solaris.
425
426 endmenu
427
428 config SCHED_SMT
429 bool "SMT (Hyperthreading) scheduler support"
430 depends on SMP
431 default y
432 help
433 SMT scheduler support improves the CPU scheduler's decision making
434 when dealing with UltraSPARC cpus at a cost of slightly increased
435 overhead in some places. If unsure say N here.
436
437 config SCHED_MC
438 bool "Multi-core scheduler support"
439 depends on SMP
440 default y
441 help
442 Multi-core scheduler support improves the CPU scheduler's decision
443 making when dealing with multi-core CPU chips at a cost of slightly
444 increased overhead in some places. If unsure say N here.
445
446 source "kernel/Kconfig.preempt"
447
448 config CMDLINE_BOOL
449 bool "Default bootloader kernel arguments"
450
451 config CMDLINE
452 string "Initial kernel command string"
453 depends on CMDLINE_BOOL
454 default "console=ttyS0,9600 root=/dev/sda1"
455 help
456 Say Y here if you want to be able to pass default arguments to
457 the kernel. This will be overridden by the bootloader, if you
458 use one (such as SILO). This is most useful if you want to boot
459 a kernel from TFTP, and want default options to be available
460 with having them passed on the command line.
461
462 NOTE: This option WILL override the PROM bootargs setting!
463
464 source "net/Kconfig"
465
466 source "drivers/Kconfig"
467
468 source "drivers/sbus/char/Kconfig"
469
470 source "fs/Kconfig"
471
472 source "arch/sparc64/Kconfig.debug"
473
474 source "security/Kconfig"
475
476 source "crypto/Kconfig"
477
478 source "lib/Kconfig"
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