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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
29config TIME_INTERPOLATION
30 bool
31 default y
32
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +010033config ARCH_MAY_HAVE_PC_FDC
34 bool
35 default y
36
Al Virof6bc0c12006-09-12 02:59:45 -040037config AUDIT_ARCH
38 bool
39 default y
40
Linus Torvalds1da177e2005-04-16 15:20:36 -070041choice
42 prompt "Kernel page size"
43 default SPARC64_PAGE_SIZE_8KB
44
45config SPARC64_PAGE_SIZE_8KB
46 bool "8KB"
47 help
48 This lets you select the page size of the kernel.
49
50 8KB and 64KB work quite well, since Sparc ELF sections
51 provide for up to 64KB alignment.
52
53 Therefore, 512KB and 4MB are for expert hackers only.
54
55 If you don't know what to do, choose 8KB.
56
57config SPARC64_PAGE_SIZE_64KB
58 bool "64KB"
59
60config SPARC64_PAGE_SIZE_512KB
61 bool "512KB"
62
63config SPARC64_PAGE_SIZE_4MB
64 bool "4MB"
65
66endchoice
67
David S. Millerbb49bcd2005-07-10 16:49:28 -070068config SECCOMP
69 bool "Enable seccomp to safely compute untrusted bytecode"
70 depends on PROC_FS
71 default y
72 help
73 This kernel feature is useful for number crunching applications
74 that may need to compute untrusted bytecode during their
75 execution. By using pipes or other transports made available to
76 the process as file descriptors supporting the read/write
77 syscalls, it's possible to isolate those applications in
78 their own address space using seccomp. Once seccomp is
79 enabled via /proc/<pid>/seccomp, it cannot be disabled
80 and the task is only allowed to execute a few safe syscalls
81 defined by each seccomp mode.
82
83 If unsure, say Y. Only embedded should say N here.
84
David S. Millera6524812005-07-08 15:21:51 -070085source kernel/Kconfig.hz
86
Linus Torvalds1da177e2005-04-16 15:20:36 -070087source "init/Kconfig"
88
89config SYSVIPC_COMPAT
90 bool
91 depends on COMPAT && SYSVIPC
92 default y
93
David S. Millere18e2a02006-06-20 01:23:32 -070094config GENERIC_HARDIRQS
95 bool
96 default y
97
Linus Torvalds1da177e2005-04-16 15:20:36 -070098menu "General machine setup"
99
Linus Torvalds1da177e2005-04-16 15:20:36 -0700100config SMP
101 bool "Symmetric multi-processing support"
102 ---help---
103 This enables support for systems with more than one CPU. If you have
104 a system with only one CPU, say N. If you have a system with more than
105 one CPU, say Y.
106
107 If you say N here, the kernel will run on single and multiprocessor
108 machines, but will use only one CPU of a multiprocessor machine. If
109 you say Y here, the kernel will run on many, but not all,
110 singleprocessor machines. On a singleprocessor machine, the kernel
111 will run faster if you say N here.
112
113 People using multiprocessor machines who say Y here should also say
114 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
115 Management" code will be disabled if you say Y here.
116
117 See also the <file:Documentation/smp.txt>,
118 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
119 <http://www.tldp.org/docs.html#howto>.
120
121 If you don't know what to do here, say N.
122
123config PREEMPT
124 bool "Preemptible Kernel"
125 help
126 This option reduces the latency of the kernel when reacting to
127 real-time or interactive events by allowing a low priority process to
128 be preempted even if it is in kernel mode executing a system call.
129 This allows applications to run more reliably even when the system is
130 under load.
131
132 Say Y here if you are building a kernel for a desktop, embedded
133 or real-time system. Say N if you are unsure.
134
135config NR_CPUS
136 int "Maximum number of CPUs (2-64)"
137 range 2 64
138 depends on SMP
139 default "32"
140
141source "drivers/cpufreq/Kconfig"
142
143config US3_FREQ
144 tristate "UltraSPARC-III CPU Frequency driver"
145 depends on CPU_FREQ
146 select CPU_FREQ_TABLE
147 help
148 This adds the CPUFreq driver for UltraSPARC-III processors.
149
150 For details, take a look at <file:Documentation/cpu-freq>.
151
152 If in doubt, say N.
153
154config US2E_FREQ
155 tristate "UltraSPARC-IIe CPU Frequency driver"
156 depends on CPU_FREQ
157 select CPU_FREQ_TABLE
158 help
159 This adds the CPUFreq driver for UltraSPARC-IIe processors.
160
161 For details, take a look at <file:Documentation/cpu-freq>.
162
163 If in doubt, say N.
164
Linus Torvalds1da177e2005-04-16 15:20:36 -0700165# Global things across all Sun machines.
166config RWSEM_GENERIC_SPINLOCK
167 bool
168
169config RWSEM_XCHGADD_ALGORITHM
170 bool
171 default y
172
Akinobu Mita2d78d4b2006-03-26 01:39:40 -0800173config GENERIC_FIND_NEXT_BIT
174 bool
175 default y
176
177config GENERIC_HWEIGHT
178 bool
179 default y if !ULTRA_HAS_POPULATION_COUNT
180
Linus Torvalds1da177e2005-04-16 15:20:36 -0700181config GENERIC_CALIBRATE_DELAY
182 bool
183 default y
184
185choice
186 prompt "SPARC64 Huge TLB Page Size"
187 depends on HUGETLB_PAGE
188 default HUGETLB_PAGE_SIZE_4MB
189
190config HUGETLB_PAGE_SIZE_4MB
191 bool "4MB"
192
193config HUGETLB_PAGE_SIZE_512K
David S. Millerdcc1e8d2006-03-22 00:49:59 -0800194 depends on !SPARC64_PAGE_SIZE_4MB && !SPARC64_PAGE_SIZE_512KB
Linus Torvalds1da177e2005-04-16 15:20:36 -0700195 bool "512K"
196
197config HUGETLB_PAGE_SIZE_64K
Jean-Luc Légerf2a15852006-04-18 16:19:53 -0700198 depends on !SPARC64_PAGE_SIZE_4MB && !SPARC64_PAGE_SIZE_512KB && !SPARC64_PAGE_SIZE_64KB
Linus Torvalds1da177e2005-04-16 15:20:36 -0700199 bool "64K"
200
201endchoice
202
David S. Miller5843e372005-08-30 21:46:19 -0700203endmenu
204
David S. Miller68491d52006-04-06 20:28:11 -0700205config ARCH_SELECT_MEMORY_MODEL
206 def_bool y
207
David S. Millerd1112012006-03-08 02:16:07 -0800208config ARCH_SPARSEMEM_ENABLE
209 def_bool y
210
211config ARCH_SPARSEMEM_DEFAULT
212 def_bool y
213
David S. Miller9b4006d2006-03-18 18:12:42 -0800214config LARGE_ALLOCS
215 def_bool y
216
David S. Miller5843e372005-08-30 21:46:19 -0700217source "mm/Kconfig"
218
Linus Torvalds1da177e2005-04-16 15:20:36 -0700219config GENERIC_ISA_DMA
220 bool
221 default y
222
223config ISA
224 bool
225 help
226 Find out whether you have ISA slots on your motherboard. ISA is the
227 name of a bus system, i.e. the way the CPU talks to the other stuff
228 inside your box. Other bus systems are PCI, EISA, MicroChannel
229 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
230 newer boards don't support it. If you have ISA, say Y, otherwise N.
231
232config ISAPNP
233 bool
234 help
235 Say Y here if you would like support for ISA Plug and Play devices.
236 Some information is in <file:Documentation/isapnp.txt>.
237
238 To compile this driver as a module, choose M here: the
239 module will be called isapnp.
240
241 If unsure, say Y.
242
243config EISA
244 bool
245 ---help---
246 The Extended Industry Standard Architecture (EISA) bus was
247 developed as an open alternative to the IBM MicroChannel bus.
248
249 The EISA bus provided some of the features of the IBM MicroChannel
250 bus while maintaining backward compatibility with cards made for
251 the older ISA bus. The EISA bus saw limited use between 1988 and
252 1995 when it was made obsolete by the PCI bus.
253
254 Say Y here if you are building a kernel for an EISA-based machine.
255
256 Otherwise, say N.
257
258config MCA
259 bool
260 help
261 MicroChannel Architecture is found in some IBM PS/2 machines and
262 laptops. It is a bus system similar to PCI or ISA. See
263 <file:Documentation/mca.txt> (and especially the web page given
264 there) before attempting to build an MCA bus kernel.
265
266config PCMCIA
267 tristate
268 ---help---
269 Say Y here if you want to attach PCMCIA- or PC-cards to your Linux
270 computer. These are credit-card size devices such as network cards,
271 modems or hard drives often used with laptops computers. There are
272 actually two varieties of these cards: the older 16 bit PCMCIA cards
273 and the newer 32 bit CardBus cards. If you want to use CardBus
274 cards, you need to say Y here and also to "CardBus support" below.
275
276 To use your PC-cards, you will need supporting software from David
277 Hinds' pcmcia-cs package (see the file <file:Documentation/Changes>
278 for location). Please also read the PCMCIA-HOWTO, available from
279 <http://www.tldp.org/docs.html#howto>.
280
281 To compile this driver as modules, choose M here: the
282 modules will be called pcmcia_core and ds.
283
284config SBUS
285 bool
286 default y
287
288config SBUSCHAR
289 bool
290 default y
291
292config SUN_AUXIO
293 bool
294 default y
295
296config SUN_IO
297 bool
298 default y
299
300config PCI
301 bool "PCI support"
302 help
303 Find out whether you have a PCI motherboard. PCI is the name of a
304 bus system, i.e. the way the CPU talks to the other stuff inside
305 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
306 VESA. If you have PCI, say Y, otherwise N.
307
308 The PCI-HOWTO, available from
309 <http://www.tldp.org/docs.html#howto>, contains valuable
310 information about which PCI hardware does work under Linux and which
311 doesn't.
312
313config PCI_DOMAINS
314 bool
315 default PCI
316
Linus Torvalds1da177e2005-04-16 15:20:36 -0700317source "drivers/pci/Kconfig"
318
319config SUN_OPENPROMFS
320 tristate "Openprom tree appears in /proc/openprom"
321 help
322 If you say Y, the OpenPROM device tree will be available as a
323 virtual file system, which you can mount to /proc/openprom by "mount
324 -t openpromfs none /proc/openprom".
325
326 To compile the /proc/openprom support as a module, choose M here: the
327 module will be called openpromfs. If unsure, choose M.
328
329config SPARC32_COMPAT
330 bool "Kernel support for Linux/Sparc 32bit binary compatibility"
331 help
332 This allows you to run 32-bit binaries on your Ultra.
333 Everybody wants this; say Y.
334
335config COMPAT
336 bool
337 depends on SPARC32_COMPAT
338 default y
339
Linus Torvalds1da177e2005-04-16 15:20:36 -0700340config BINFMT_ELF32
Christoph Hellwig289fbc22006-07-10 04:45:38 -0700341 bool "Kernel support for 32-bit ELF binaries"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700342 depends on SPARC32_COMPAT
343 help
344 This allows you to run 32-bit Linux/ELF binaries on your Ultra.
345 Everybody wants this; say Y.
346
347config BINFMT_AOUT32
348 bool "Kernel support for 32-bit (ie. SunOS) a.out binaries"
349 depends on SPARC32_COMPAT
350 help
351 This allows you to run 32-bit a.out format binaries on your Ultra.
352 If you want to run SunOS binaries (see SunOS binary emulation below)
353 or other a.out binaries, say Y. If unsure, say N.
354
David S. Miller5843e372005-08-30 21:46:19 -0700355menu "Executable file formats"
356
Linus Torvalds1da177e2005-04-16 15:20:36 -0700357source "fs/Kconfig.binfmt"
358
359config SUNOS_EMUL
360 bool "SunOS binary emulation"
361 depends on BINFMT_AOUT32
362 help
363 This allows you to run most SunOS binaries. If you want to do this,
364 say Y here and place appropriate files in /usr/gnemul/sunos. See
365 <http://www.ultralinux.org/faq.html> for more information. If you
366 want to run SunOS binaries on an Ultra you must also say Y to
367 "Kernel support for 32-bit a.out binaries" above.
368
369config SOLARIS_EMUL
370 tristate "Solaris binary emulation (EXPERIMENTAL)"
371 depends on SPARC32_COMPAT && EXPERIMENTAL
372 help
373 This is experimental code which will enable you to run (many)
374 Solaris binaries on your SPARC Linux machine.
375
376 To compile this code as a module, choose M here: the
377 module will be called solaris.
378
David S. Miller5843e372005-08-30 21:46:19 -0700379endmenu
Linus Torvalds1da177e2005-04-16 15:20:36 -0700380
David S. Miller8935dce2006-03-08 16:09:19 -0800381config SCHED_SMT
382 bool "SMT (Hyperthreading) scheduler support"
383 depends on SMP
384 default y
385 help
386 SMT scheduler support improves the CPU scheduler's decision making
387 when dealing with UltraSPARC cpus at a cost of slightly increased
388 overhead in some places. If unsure say N here.
389
Linus Torvalds1da177e2005-04-16 15:20:36 -0700390config CMDLINE_BOOL
391 bool "Default bootloader kernel arguments"
392
393config CMDLINE
394 string "Initial kernel command string"
395 depends on CMDLINE_BOOL
396 default "console=ttyS0,9600 root=/dev/sda1"
397 help
398 Say Y here if you want to be able to pass default arguments to
399 the kernel. This will be overridden by the bootloader, if you
400 use one (such as SILO). This is most useful if you want to boot
401 a kernel from TFTP, and want default options to be available
402 with having them passed on the command line.
403
404 NOTE: This option WILL override the PROM bootargs setting!
405
Sam Ravnborgd5950b42005-07-11 21:03:49 -0700406source "net/Kconfig"
407
David S. Miller5843e372005-08-30 21:46:19 -0700408source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700409
410source "drivers/sbus/char/Kconfig"
411
Linus Torvalds1da177e2005-04-16 15:20:36 -0700412source "drivers/fc4/Kconfig"
413
Linus Torvalds1da177e2005-04-16 15:20:36 -0700414source "fs/Kconfig"
415
Prasanna S Panchamukhicd6b0762005-11-07 00:59:14 -0800416menu "Instrumentation Support"
417 depends on EXPERIMENTAL
418
Linus Torvalds1da177e2005-04-16 15:20:36 -0700419source "arch/sparc64/oprofile/Kconfig"
420
Prasanna S Panchamukhicd6b0762005-11-07 00:59:14 -0800421config KPROBES
422 bool "Kprobes (EXPERIMENTAL)"
Linus Torvaldsadd2b6f2006-02-26 20:24:40 -0800423 depends on EXPERIMENTAL && MODULES
Prasanna S Panchamukhicd6b0762005-11-07 00:59:14 -0800424 help
425 Kprobes allows you to trap at almost any kernel address and
426 execute a callback function. register_kprobe() establishes
427 a probepoint and specifies the callback. Kprobes is useful
428 for kernel debugging, non-intrusive instrumentation and testing.
429 If in doubt, say "N".
430endmenu
431
Linus Torvalds1da177e2005-04-16 15:20:36 -0700432source "arch/sparc64/Kconfig.debug"
433
434source "security/Kconfig"
435
436source "crypto/Kconfig"
437
438source "lib/Kconfig"