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Linus Torvalds1da177e2005-04-16 15:20:36 -07001# $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
6mainmenu "Linux/UltraSPARC Kernel Configuration"
7
Adrian Bunk0b57ee92005-12-22 21:03:47 -08008config SPARC
9 bool
10 default y
11
David S. Miller5843e372005-08-30 21:46:19 -070012config SPARC64
13 bool
14 default y
15 help
16 SPARC is a family of RISC microprocessors designed and marketed by
17 Sun Microsystems, incorporated. This port covers the newer 64-bit
18 UltraSPARC. The UltraLinux project maintains both the SPARC32 and
19 SPARC64 ports; its web page is available at
20 <http://www.ultralinux.org/>.
21
Linus Torvalds1da177e2005-04-16 15:20:36 -070022config 64BIT
23 def_bool y
24
25config MMU
26 bool
27 default y
28
David S. Miller10e26722006-11-16 13:38:57 -080029config STACKTRACE_SUPPORT
30 bool
31 default y
32
33config LOCKDEP_SUPPORT
34 bool
35 default y
36
Linus Torvalds1da177e2005-04-16 15:20:36 -070037config TIME_INTERPOLATION
38 bool
39 default y
40
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +010041config ARCH_MAY_HAVE_PC_FDC
42 bool
43 default y
44
David Howellsf0d1b0b2006-12-08 02:37:49 -080045config ARCH_HAS_ILOG2_U32
46 bool
47 default n
48
49config ARCH_HAS_ILOG2_U64
50 bool
51 default n
52
Al Virof6bc0c12006-09-12 02:59:45 -040053config AUDIT_ARCH
54 bool
55 default y
56
Linus Torvalds1da177e2005-04-16 15:20:36 -070057choice
58 prompt "Kernel page size"
59 default SPARC64_PAGE_SIZE_8KB
60
61config SPARC64_PAGE_SIZE_8KB
62 bool "8KB"
63 help
64 This lets you select the page size of the kernel.
65
66 8KB and 64KB work quite well, since Sparc ELF sections
67 provide for up to 64KB alignment.
68
69 Therefore, 512KB and 4MB are for expert hackers only.
70
71 If you don't know what to do, choose 8KB.
72
73config SPARC64_PAGE_SIZE_64KB
74 bool "64KB"
75
76config SPARC64_PAGE_SIZE_512KB
77 bool "512KB"
78
79config SPARC64_PAGE_SIZE_4MB
80 bool "4MB"
81
82endchoice
83
David S. Millerbb49bcd2005-07-10 16:49:28 -070084config SECCOMP
85 bool "Enable seccomp to safely compute untrusted bytecode"
86 depends on PROC_FS
87 default y
88 help
89 This kernel feature is useful for number crunching applications
90 that may need to compute untrusted bytecode during their
91 execution. By using pipes or other transports made available to
92 the process as file descriptors supporting the read/write
93 syscalls, it's possible to isolate those applications in
94 their own address space using seccomp. Once seccomp is
95 enabled via /proc/<pid>/seccomp, it cannot be disabled
96 and the task is only allowed to execute a few safe syscalls
97 defined by each seccomp mode.
98
99 If unsure, say Y. Only embedded should say N here.
100
David S. Millera6524812005-07-08 15:21:51 -0700101source kernel/Kconfig.hz
102
Linus Torvalds1da177e2005-04-16 15:20:36 -0700103source "init/Kconfig"
104
105config SYSVIPC_COMPAT
106 bool
107 depends on COMPAT && SYSVIPC
108 default y
109
David S. Millere18e2a02006-06-20 01:23:32 -0700110config GENERIC_HARDIRQS
111 bool
112 default y
113
Linus Torvalds1da177e2005-04-16 15:20:36 -0700114menu "General machine setup"
115
Linus Torvalds1da177e2005-04-16 15:20:36 -0700116config SMP
117 bool "Symmetric multi-processing support"
118 ---help---
119 This enables support for systems with more than one CPU. If you have
120 a system with only one CPU, say N. If you have a system with more than
121 one CPU, say Y.
122
123 If you say N here, the kernel will run on single and multiprocessor
124 machines, but will use only one CPU of a multiprocessor machine. If
125 you say Y here, the kernel will run on many, but not all,
126 singleprocessor machines. On a singleprocessor machine, the kernel
127 will run faster if you say N here.
128
129 People using multiprocessor machines who say Y here should also say
130 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
131 Management" code will be disabled if you say Y here.
132
133 See also the <file:Documentation/smp.txt>,
134 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
135 <http://www.tldp.org/docs.html#howto>.
136
137 If you don't know what to do here, say N.
138
139config PREEMPT
140 bool "Preemptible Kernel"
141 help
142 This option reduces the latency of the kernel when reacting to
143 real-time or interactive events by allowing a low priority process to
144 be preempted even if it is in kernel mode executing a system call.
145 This allows applications to run more reliably even when the system is
146 under load.
147
148 Say Y here if you are building a kernel for a desktop, embedded
149 or real-time system. Say N if you are unsure.
150
151config NR_CPUS
152 int "Maximum number of CPUs (2-64)"
153 range 2 64
154 depends on SMP
155 default "32"
156
157source "drivers/cpufreq/Kconfig"
158
159config US3_FREQ
160 tristate "UltraSPARC-III CPU Frequency driver"
161 depends on CPU_FREQ
162 select CPU_FREQ_TABLE
163 help
164 This adds the CPUFreq driver for UltraSPARC-III processors.
165
166 For details, take a look at <file:Documentation/cpu-freq>.
167
168 If in doubt, say N.
169
170config US2E_FREQ
171 tristate "UltraSPARC-IIe CPU Frequency driver"
172 depends on CPU_FREQ
173 select CPU_FREQ_TABLE
174 help
175 This adds the CPUFreq driver for UltraSPARC-IIe processors.
176
177 For details, take a look at <file:Documentation/cpu-freq>.
178
179 If in doubt, say N.
180
Linus Torvalds1da177e2005-04-16 15:20:36 -0700181# Global things across all Sun machines.
182config RWSEM_GENERIC_SPINLOCK
183 bool
184
185config RWSEM_XCHGADD_ALGORITHM
186 bool
187 default y
188
Akinobu Mita2d78d4b2006-03-26 01:39:40 -0800189config GENERIC_FIND_NEXT_BIT
190 bool
191 default y
192
193config GENERIC_HWEIGHT
194 bool
195 default y if !ULTRA_HAS_POPULATION_COUNT
196
Linus Torvalds1da177e2005-04-16 15:20:36 -0700197config GENERIC_CALIBRATE_DELAY
198 bool
199 default y
200
201choice
202 prompt "SPARC64 Huge TLB Page Size"
203 depends on HUGETLB_PAGE
204 default HUGETLB_PAGE_SIZE_4MB
205
206config HUGETLB_PAGE_SIZE_4MB
207 bool "4MB"
208
209config HUGETLB_PAGE_SIZE_512K
David S. Millerdcc1e8d2006-03-22 00:49:59 -0800210 depends on !SPARC64_PAGE_SIZE_4MB && !SPARC64_PAGE_SIZE_512KB
Linus Torvalds1da177e2005-04-16 15:20:36 -0700211 bool "512K"
212
213config HUGETLB_PAGE_SIZE_64K
Jean-Luc Légerf2a15852006-04-18 16:19:53 -0700214 depends on !SPARC64_PAGE_SIZE_4MB && !SPARC64_PAGE_SIZE_512KB && !SPARC64_PAGE_SIZE_64KB
Linus Torvalds1da177e2005-04-16 15:20:36 -0700215 bool "64K"
216
217endchoice
218
David S. Miller5843e372005-08-30 21:46:19 -0700219endmenu
220
David S. Miller68491d52006-04-06 20:28:11 -0700221config ARCH_SELECT_MEMORY_MODEL
222 def_bool y
223
David S. Millerd1112012006-03-08 02:16:07 -0800224config ARCH_SPARSEMEM_ENABLE
225 def_bool y
226
227config ARCH_SPARSEMEM_DEFAULT
228 def_bool y
229
David S. Miller9b4006d2006-03-18 18:12:42 -0800230config LARGE_ALLOCS
231 def_bool y
232
David S. Miller5843e372005-08-30 21:46:19 -0700233source "mm/Kconfig"
234
Linus Torvalds1da177e2005-04-16 15:20:36 -0700235config ISA
236 bool
237 help
238 Find out whether you have ISA slots on your motherboard. ISA is the
239 name of a bus system, i.e. the way the CPU talks to the other stuff
240 inside your box. Other bus systems are PCI, EISA, MicroChannel
241 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
242 newer boards don't support it. If you have ISA, say Y, otherwise N.
243
244config ISAPNP
245 bool
246 help
247 Say Y here if you would like support for ISA Plug and Play devices.
248 Some information is in <file:Documentation/isapnp.txt>.
249
250 To compile this driver as a module, choose M here: the
251 module will be called isapnp.
252
253 If unsure, say Y.
254
255config EISA
256 bool
257 ---help---
258 The Extended Industry Standard Architecture (EISA) bus was
259 developed as an open alternative to the IBM MicroChannel bus.
260
261 The EISA bus provided some of the features of the IBM MicroChannel
262 bus while maintaining backward compatibility with cards made for
263 the older ISA bus. The EISA bus saw limited use between 1988 and
264 1995 when it was made obsolete by the PCI bus.
265
266 Say Y here if you are building a kernel for an EISA-based machine.
267
268 Otherwise, say N.
269
270config MCA
271 bool
272 help
273 MicroChannel Architecture is found in some IBM PS/2 machines and
274 laptops. It is a bus system similar to PCI or ISA. See
275 <file:Documentation/mca.txt> (and especially the web page given
276 there) before attempting to build an MCA bus kernel.
277
278config PCMCIA
279 tristate
280 ---help---
281 Say Y here if you want to attach PCMCIA- or PC-cards to your Linux
282 computer. These are credit-card size devices such as network cards,
283 modems or hard drives often used with laptops computers. There are
284 actually two varieties of these cards: the older 16 bit PCMCIA cards
285 and the newer 32 bit CardBus cards. If you want to use CardBus
286 cards, you need to say Y here and also to "CardBus support" below.
287
288 To use your PC-cards, you will need supporting software from David
289 Hinds' pcmcia-cs package (see the file <file:Documentation/Changes>
290 for location). Please also read the PCMCIA-HOWTO, available from
291 <http://www.tldp.org/docs.html#howto>.
292
293 To compile this driver as modules, choose M here: the
294 modules will be called pcmcia_core and ds.
295
296config SBUS
297 bool
298 default y
299
300config SBUSCHAR
301 bool
302 default y
303
304config SUN_AUXIO
305 bool
306 default y
307
308config SUN_IO
309 bool
310 default y
311
312config PCI
313 bool "PCI support"
314 help
315 Find out whether you have a PCI motherboard. PCI is the name of a
316 bus system, i.e. the way the CPU talks to the other stuff inside
317 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
318 VESA. If you have PCI, say Y, otherwise N.
319
320 The PCI-HOWTO, available from
321 <http://www.tldp.org/docs.html#howto>, contains valuable
322 information about which PCI hardware does work under Linux and which
323 doesn't.
324
325config PCI_DOMAINS
326 bool
327 default PCI
328
Linus Torvalds1da177e2005-04-16 15:20:36 -0700329source "drivers/pci/Kconfig"
330
331config SUN_OPENPROMFS
332 tristate "Openprom tree appears in /proc/openprom"
333 help
334 If you say Y, the OpenPROM device tree will be available as a
335 virtual file system, which you can mount to /proc/openprom by "mount
336 -t openpromfs none /proc/openprom".
337
338 To compile the /proc/openprom support as a module, choose M here: the
339 module will be called openpromfs. If unsure, choose M.
340
341config SPARC32_COMPAT
342 bool "Kernel support for Linux/Sparc 32bit binary compatibility"
343 help
344 This allows you to run 32-bit binaries on your Ultra.
345 Everybody wants this; say Y.
346
347config COMPAT
348 bool
349 depends on SPARC32_COMPAT
350 default y
351
Linus Torvalds1da177e2005-04-16 15:20:36 -0700352config BINFMT_ELF32
Christoph Hellwig289fbc22006-07-10 04:45:38 -0700353 bool "Kernel support for 32-bit ELF binaries"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700354 depends on SPARC32_COMPAT
355 help
356 This allows you to run 32-bit Linux/ELF binaries on your Ultra.
357 Everybody wants this; say Y.
358
359config BINFMT_AOUT32
360 bool "Kernel support for 32-bit (ie. SunOS) a.out binaries"
361 depends on SPARC32_COMPAT
362 help
363 This allows you to run 32-bit a.out format binaries on your Ultra.
364 If you want to run SunOS binaries (see SunOS binary emulation below)
365 or other a.out binaries, say Y. If unsure, say N.
366
David S. Miller5843e372005-08-30 21:46:19 -0700367menu "Executable file formats"
368
Linus Torvalds1da177e2005-04-16 15:20:36 -0700369source "fs/Kconfig.binfmt"
370
371config SUNOS_EMUL
372 bool "SunOS binary emulation"
373 depends on BINFMT_AOUT32
374 help
375 This allows you to run most SunOS binaries. If you want to do this,
376 say Y here and place appropriate files in /usr/gnemul/sunos. See
377 <http://www.ultralinux.org/faq.html> for more information. If you
378 want to run SunOS binaries on an Ultra you must also say Y to
379 "Kernel support for 32-bit a.out binaries" above.
380
381config SOLARIS_EMUL
382 tristate "Solaris binary emulation (EXPERIMENTAL)"
383 depends on SPARC32_COMPAT && EXPERIMENTAL
384 help
385 This is experimental code which will enable you to run (many)
386 Solaris binaries on your SPARC Linux machine.
387
388 To compile this code as a module, choose M here: the
389 module will be called solaris.
390
David S. Miller5843e372005-08-30 21:46:19 -0700391endmenu
Linus Torvalds1da177e2005-04-16 15:20:36 -0700392
David S. Miller8935dce2006-03-08 16:09:19 -0800393config SCHED_SMT
394 bool "SMT (Hyperthreading) scheduler support"
395 depends on SMP
396 default y
397 help
398 SMT scheduler support improves the CPU scheduler's decision making
399 when dealing with UltraSPARC cpus at a cost of slightly increased
400 overhead in some places. If unsure say N here.
401
Linus Torvalds1da177e2005-04-16 15:20:36 -0700402config CMDLINE_BOOL
403 bool "Default bootloader kernel arguments"
404
405config CMDLINE
406 string "Initial kernel command string"
407 depends on CMDLINE_BOOL
408 default "console=ttyS0,9600 root=/dev/sda1"
409 help
410 Say Y here if you want to be able to pass default arguments to
411 the kernel. This will be overridden by the bootloader, if you
412 use one (such as SILO). This is most useful if you want to boot
413 a kernel from TFTP, and want default options to be available
414 with having them passed on the command line.
415
416 NOTE: This option WILL override the PROM bootargs setting!
417
Sam Ravnborgd5950b42005-07-11 21:03:49 -0700418source "net/Kconfig"
419
David S. Miller5843e372005-08-30 21:46:19 -0700420source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700421
422source "drivers/sbus/char/Kconfig"
423
Linus Torvalds1da177e2005-04-16 15:20:36 -0700424source "drivers/fc4/Kconfig"
425
Linus Torvalds1da177e2005-04-16 15:20:36 -0700426source "fs/Kconfig"
427
Prasanna S Panchamukhicd6b0762005-11-07 00:59:14 -0800428menu "Instrumentation Support"
429 depends on EXPERIMENTAL
430
Linus Torvalds1da177e2005-04-16 15:20:36 -0700431source "arch/sparc64/oprofile/Kconfig"
432
Prasanna S Panchamukhicd6b0762005-11-07 00:59:14 -0800433config KPROBES
434 bool "Kprobes (EXPERIMENTAL)"
Ananth N Mavinakayanahalli3a872d82006-10-02 02:17:30 -0700435 depends on KALLSYMS && EXPERIMENTAL && MODULES
Prasanna S Panchamukhicd6b0762005-11-07 00:59:14 -0800436 help
437 Kprobes allows you to trap at almost any kernel address and
438 execute a callback function. register_kprobe() establishes
439 a probepoint and specifies the callback. Kprobes is useful
440 for kernel debugging, non-intrusive instrumentation and testing.
441 If in doubt, say "N".
442endmenu
443
Linus Torvalds1da177e2005-04-16 15:20:36 -0700444source "arch/sparc64/Kconfig.debug"
445
446source "security/Kconfig"
447
448source "crypto/Kconfig"
449
450source "lib/Kconfig"