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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
Linus Torvalds1da177e2005-04-16 15:20:36 -070037choice
38 prompt "Kernel page size"
39 default SPARC64_PAGE_SIZE_8KB
40
41config SPARC64_PAGE_SIZE_8KB
42 bool "8KB"
43 help
44 This lets you select the page size of the kernel.
45
46 8KB and 64KB work quite well, since Sparc ELF sections
47 provide for up to 64KB alignment.
48
49 Therefore, 512KB and 4MB are for expert hackers only.
50
51 If you don't know what to do, choose 8KB.
52
53config SPARC64_PAGE_SIZE_64KB
54 bool "64KB"
55
56config SPARC64_PAGE_SIZE_512KB
57 bool "512KB"
58
59config SPARC64_PAGE_SIZE_4MB
60 bool "4MB"
61
62endchoice
63
David S. Millerbb49bcd2005-07-10 16:49:28 -070064config SECCOMP
65 bool "Enable seccomp to safely compute untrusted bytecode"
66 depends on PROC_FS
67 default y
68 help
69 This kernel feature is useful for number crunching applications
70 that may need to compute untrusted bytecode during their
71 execution. By using pipes or other transports made available to
72 the process as file descriptors supporting the read/write
73 syscalls, it's possible to isolate those applications in
74 their own address space using seccomp. Once seccomp is
75 enabled via /proc/<pid>/seccomp, it cannot be disabled
76 and the task is only allowed to execute a few safe syscalls
77 defined by each seccomp mode.
78
79 If unsure, say Y. Only embedded should say N here.
80
David S. Millera6524812005-07-08 15:21:51 -070081source kernel/Kconfig.hz
82
Linus Torvalds1da177e2005-04-16 15:20:36 -070083source "init/Kconfig"
84
85config SYSVIPC_COMPAT
86 bool
87 depends on COMPAT && SYSVIPC
88 default y
89
90menu "General machine setup"
91
Linus Torvalds1da177e2005-04-16 15:20:36 -070092config SMP
93 bool "Symmetric multi-processing support"
94 ---help---
95 This enables support for systems with more than one CPU. If you have
96 a system with only one CPU, say N. If you have a system with more than
97 one CPU, say Y.
98
99 If you say N here, the kernel will run on single and multiprocessor
100 machines, but will use only one CPU of a multiprocessor machine. If
101 you say Y here, the kernel will run on many, but not all,
102 singleprocessor machines. On a singleprocessor machine, the kernel
103 will run faster if you say N here.
104
105 People using multiprocessor machines who say Y here should also say
106 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
107 Management" code will be disabled if you say Y here.
108
109 See also the <file:Documentation/smp.txt>,
110 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
111 <http://www.tldp.org/docs.html#howto>.
112
113 If you don't know what to do here, say N.
114
115config PREEMPT
116 bool "Preemptible Kernel"
117 help
118 This option reduces the latency of the kernel when reacting to
119 real-time or interactive events by allowing a low priority process to
120 be preempted even if it is in kernel mode executing a system call.
121 This allows applications to run more reliably even when the system is
122 under load.
123
124 Say Y here if you are building a kernel for a desktop, embedded
125 or real-time system. Say N if you are unsure.
126
127config NR_CPUS
128 int "Maximum number of CPUs (2-64)"
129 range 2 64
130 depends on SMP
131 default "32"
132
133source "drivers/cpufreq/Kconfig"
134
135config US3_FREQ
136 tristate "UltraSPARC-III CPU Frequency driver"
137 depends on CPU_FREQ
138 select CPU_FREQ_TABLE
139 help
140 This adds the CPUFreq driver for UltraSPARC-III processors.
141
142 For details, take a look at <file:Documentation/cpu-freq>.
143
144 If in doubt, say N.
145
146config US2E_FREQ
147 tristate "UltraSPARC-IIe CPU Frequency driver"
148 depends on CPU_FREQ
149 select CPU_FREQ_TABLE
150 help
151 This adds the CPUFreq driver for UltraSPARC-IIe processors.
152
153 For details, take a look at <file:Documentation/cpu-freq>.
154
155 If in doubt, say N.
156
Linus Torvalds1da177e2005-04-16 15:20:36 -0700157# Global things across all Sun machines.
158config RWSEM_GENERIC_SPINLOCK
159 bool
160
161config RWSEM_XCHGADD_ALGORITHM
162 bool
163 default y
164
Akinobu Mita2d78d4b2006-03-26 01:39:40 -0800165config GENERIC_FIND_NEXT_BIT
166 bool
167 default y
168
169config GENERIC_HWEIGHT
170 bool
171 default y if !ULTRA_HAS_POPULATION_COUNT
172
Linus Torvalds1da177e2005-04-16 15:20:36 -0700173config GENERIC_CALIBRATE_DELAY
174 bool
175 default y
176
177choice
178 prompt "SPARC64 Huge TLB Page Size"
179 depends on HUGETLB_PAGE
180 default HUGETLB_PAGE_SIZE_4MB
181
182config HUGETLB_PAGE_SIZE_4MB
183 bool "4MB"
184
185config HUGETLB_PAGE_SIZE_512K
David S. Millerdcc1e8d2006-03-22 00:49:59 -0800186 depends on !SPARC64_PAGE_SIZE_4MB && !SPARC64_PAGE_SIZE_512KB
Linus Torvalds1da177e2005-04-16 15:20:36 -0700187 bool "512K"
188
189config HUGETLB_PAGE_SIZE_64K
Jean-Luc Légerf2a15852006-04-18 16:19:53 -0700190 depends on !SPARC64_PAGE_SIZE_4MB && !SPARC64_PAGE_SIZE_512KB && !SPARC64_PAGE_SIZE_64KB
Linus Torvalds1da177e2005-04-16 15:20:36 -0700191 bool "64K"
192
193endchoice
194
David S. Miller5843e372005-08-30 21:46:19 -0700195endmenu
196
David S. Miller68491d52006-04-06 20:28:11 -0700197config ARCH_SELECT_MEMORY_MODEL
198 def_bool y
199
David S. Millerd1112012006-03-08 02:16:07 -0800200config ARCH_SPARSEMEM_ENABLE
201 def_bool y
202
203config ARCH_SPARSEMEM_DEFAULT
204 def_bool y
205
David S. Miller9b4006d2006-03-18 18:12:42 -0800206config LARGE_ALLOCS
207 def_bool y
208
David S. Miller5843e372005-08-30 21:46:19 -0700209source "mm/Kconfig"
210
Linus Torvalds1da177e2005-04-16 15:20:36 -0700211config GENERIC_ISA_DMA
212 bool
213 default y
214
215config ISA
216 bool
217 help
218 Find out whether you have ISA slots on your motherboard. ISA is the
219 name of a bus system, i.e. the way the CPU talks to the other stuff
220 inside your box. Other bus systems are PCI, EISA, MicroChannel
221 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
222 newer boards don't support it. If you have ISA, say Y, otherwise N.
223
224config ISAPNP
225 bool
226 help
227 Say Y here if you would like support for ISA Plug and Play devices.
228 Some information is in <file:Documentation/isapnp.txt>.
229
230 To compile this driver as a module, choose M here: the
231 module will be called isapnp.
232
233 If unsure, say Y.
234
235config EISA
236 bool
237 ---help---
238 The Extended Industry Standard Architecture (EISA) bus was
239 developed as an open alternative to the IBM MicroChannel bus.
240
241 The EISA bus provided some of the features of the IBM MicroChannel
242 bus while maintaining backward compatibility with cards made for
243 the older ISA bus. The EISA bus saw limited use between 1988 and
244 1995 when it was made obsolete by the PCI bus.
245
246 Say Y here if you are building a kernel for an EISA-based machine.
247
248 Otherwise, say N.
249
250config MCA
251 bool
252 help
253 MicroChannel Architecture is found in some IBM PS/2 machines and
254 laptops. It is a bus system similar to PCI or ISA. See
255 <file:Documentation/mca.txt> (and especially the web page given
256 there) before attempting to build an MCA bus kernel.
257
258config PCMCIA
259 tristate
260 ---help---
261 Say Y here if you want to attach PCMCIA- or PC-cards to your Linux
262 computer. These are credit-card size devices such as network cards,
263 modems or hard drives often used with laptops computers. There are
264 actually two varieties of these cards: the older 16 bit PCMCIA cards
265 and the newer 32 bit CardBus cards. If you want to use CardBus
266 cards, you need to say Y here and also to "CardBus support" below.
267
268 To use your PC-cards, you will need supporting software from David
269 Hinds' pcmcia-cs package (see the file <file:Documentation/Changes>
270 for location). Please also read the PCMCIA-HOWTO, available from
271 <http://www.tldp.org/docs.html#howto>.
272
273 To compile this driver as modules, choose M here: the
274 modules will be called pcmcia_core and ds.
275
276config SBUS
277 bool
278 default y
279
280config SBUSCHAR
281 bool
282 default y
283
284config SUN_AUXIO
285 bool
286 default y
287
288config SUN_IO
289 bool
290 default y
291
292config PCI
293 bool "PCI support"
294 help
295 Find out whether you have a PCI motherboard. PCI is the name of a
296 bus system, i.e. the way the CPU talks to the other stuff inside
297 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
298 VESA. If you have PCI, say Y, otherwise N.
299
300 The PCI-HOWTO, available from
301 <http://www.tldp.org/docs.html#howto>, contains valuable
302 information about which PCI hardware does work under Linux and which
303 doesn't.
304
305config PCI_DOMAINS
306 bool
307 default PCI
308
Linus Torvalds1da177e2005-04-16 15:20:36 -0700309source "drivers/pci/Kconfig"
310
311config SUN_OPENPROMFS
312 tristate "Openprom tree appears in /proc/openprom"
313 help
314 If you say Y, the OpenPROM device tree will be available as a
315 virtual file system, which you can mount to /proc/openprom by "mount
316 -t openpromfs none /proc/openprom".
317
318 To compile the /proc/openprom support as a module, choose M here: the
319 module will be called openpromfs. If unsure, choose M.
320
321config SPARC32_COMPAT
322 bool "Kernel support for Linux/Sparc 32bit binary compatibility"
323 help
324 This allows you to run 32-bit binaries on your Ultra.
325 Everybody wants this; say Y.
326
327config COMPAT
328 bool
329 depends on SPARC32_COMPAT
330 default y
331
Linus Torvalds1da177e2005-04-16 15:20:36 -0700332config BINFMT_ELF32
333 tristate "Kernel support for 32-bit ELF binaries"
334 depends on SPARC32_COMPAT
335 help
336 This allows you to run 32-bit Linux/ELF binaries on your Ultra.
337 Everybody wants this; say Y.
338
339config BINFMT_AOUT32
340 bool "Kernel support for 32-bit (ie. SunOS) a.out binaries"
341 depends on SPARC32_COMPAT
342 help
343 This allows you to run 32-bit a.out format binaries on your Ultra.
344 If you want to run SunOS binaries (see SunOS binary emulation below)
345 or other a.out binaries, say Y. If unsure, say N.
346
David S. Miller5843e372005-08-30 21:46:19 -0700347menu "Executable file formats"
348
Linus Torvalds1da177e2005-04-16 15:20:36 -0700349source "fs/Kconfig.binfmt"
350
351config SUNOS_EMUL
352 bool "SunOS binary emulation"
353 depends on BINFMT_AOUT32
354 help
355 This allows you to run most SunOS binaries. If you want to do this,
356 say Y here and place appropriate files in /usr/gnemul/sunos. See
357 <http://www.ultralinux.org/faq.html> for more information. If you
358 want to run SunOS binaries on an Ultra you must also say Y to
359 "Kernel support for 32-bit a.out binaries" above.
360
361config SOLARIS_EMUL
362 tristate "Solaris binary emulation (EXPERIMENTAL)"
363 depends on SPARC32_COMPAT && EXPERIMENTAL
364 help
365 This is experimental code which will enable you to run (many)
366 Solaris binaries on your SPARC Linux machine.
367
368 To compile this code as a module, choose M here: the
369 module will be called solaris.
370
David S. Miller5843e372005-08-30 21:46:19 -0700371endmenu
Linus Torvalds1da177e2005-04-16 15:20:36 -0700372
David S. Miller8935dce2006-03-08 16:09:19 -0800373config SCHED_SMT
374 bool "SMT (Hyperthreading) scheduler support"
375 depends on SMP
376 default y
377 help
378 SMT scheduler support improves the CPU scheduler's decision making
379 when dealing with UltraSPARC cpus at a cost of slightly increased
380 overhead in some places. If unsure say N here.
381
Linus Torvalds1da177e2005-04-16 15:20:36 -0700382config CMDLINE_BOOL
383 bool "Default bootloader kernel arguments"
384
385config CMDLINE
386 string "Initial kernel command string"
387 depends on CMDLINE_BOOL
388 default "console=ttyS0,9600 root=/dev/sda1"
389 help
390 Say Y here if you want to be able to pass default arguments to
391 the kernel. This will be overridden by the bootloader, if you
392 use one (such as SILO). This is most useful if you want to boot
393 a kernel from TFTP, and want default options to be available
394 with having them passed on the command line.
395
396 NOTE: This option WILL override the PROM bootargs setting!
397
Sam Ravnborgd5950b42005-07-11 21:03:49 -0700398source "net/Kconfig"
399
David S. Miller5843e372005-08-30 21:46:19 -0700400source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700401
402source "drivers/sbus/char/Kconfig"
403
Linus Torvalds1da177e2005-04-16 15:20:36 -0700404source "drivers/fc4/Kconfig"
405
Linus Torvalds1da177e2005-04-16 15:20:36 -0700406source "fs/Kconfig"
407
Prasanna S Panchamukhicd6b0762005-11-07 00:59:14 -0800408menu "Instrumentation Support"
409 depends on EXPERIMENTAL
410
Linus Torvalds1da177e2005-04-16 15:20:36 -0700411source "arch/sparc64/oprofile/Kconfig"
412
Prasanna S Panchamukhicd6b0762005-11-07 00:59:14 -0800413config KPROBES
414 bool "Kprobes (EXPERIMENTAL)"
Linus Torvaldsadd2b6f2006-02-26 20:24:40 -0800415 depends on EXPERIMENTAL && MODULES
Prasanna S Panchamukhicd6b0762005-11-07 00:59:14 -0800416 help
417 Kprobes allows you to trap at almost any kernel address and
418 execute a callback function. register_kprobe() establishes
419 a probepoint and specifies the callback. Kprobes is useful
420 for kernel debugging, non-intrusive instrumentation and testing.
421 If in doubt, say "N".
422endmenu
423
Linus Torvalds1da177e2005-04-16 15:20:36 -0700424source "arch/sparc64/Kconfig.debug"
425
426source "security/Kconfig"
427
428source "crypto/Kconfig"
429
430source "lib/Kconfig"