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Linus Torvalds1da177e2005-04-16 15:20:36 -07001# For a description of the syntax of this configuration file,
2# see Documentation/kbuild/kconfig-language.txt.
3#
4
5mainmenu "Linux/SPARC Kernel Configuration"
6
Bastian Blank761b6022009-01-04 23:03:10 -08007config 64BIT
8 bool "64-bit kernel" if ARCH = "sparc"
9 default ARCH = "sparc64"
10 help
11 SPARC is a family of RISC microprocessors designed and marketed by
12 Sun Microsystems, incorporated. They are very widely found in Sun
13 workstations and clones.
14
15 Say yes to build a 64-bit kernel - formerly known as sparc64
16 Say no to build a 32-bit kernel - formerly known as sparc
17
Sam Ravnborg35da3e32008-11-15 13:40:12 -080018config SPARC
19 bool
20 default y
21 select HAVE_IDE
22 select HAVE_OPROFILE
Sam Ravnborg26b4c912008-11-16 20:01:17 -080023 select HAVE_ARCH_KGDB if !SMP || SPARC64
Sam Ravnborg35da3e32008-11-15 13:40:12 -080024 select HAVE_ARCH_TRACEHOOK
25 select ARCH_WANT_OPTIONAL_GPIOLIB
26 select RTC_CLASS
27 select RTC_DRV_M48T59
28
Sam Ravnborg35da3e32008-11-15 13:40:12 -080029config SPARC32
Bastian Blank761b6022009-01-04 23:03:10 -080030 def_bool !64BIT
Sam Ravnborg35da3e32008-11-15 13:40:12 -080031
Sam Ravnborg26b4c912008-11-16 20:01:17 -080032config SPARC64
Bastian Blank761b6022009-01-04 23:03:10 -080033 def_bool 64BIT
Sam Ravnborg5bc05302008-12-27 00:56:29 -080034 select ARCH_SUPPORTS_MSI
Sam Ravnborg26b4c912008-11-16 20:01:17 -080035 select HAVE_FUNCTION_TRACER
36 select HAVE_KRETPROBES
37 select HAVE_KPROBES
38 select HAVE_LMB
Christian Borntraeger67605d62009-01-19 20:21:49 -080039 select HAVE_SYSCALL_WRAPPERS
Sam Ravnborg26b4c912008-11-16 20:01:17 -080040 select USE_GENERIC_SMP_HELPERS if SMP
41 select RTC_DRV_CMOS
42 select RTC_DRV_BQ4802
43 select RTC_DRV_SUN4V
44 select RTC_DRV_STARFIRE
45
Sam Ravnborg5e538792008-12-02 23:17:12 -080046config ARCH_DEFCONFIG
47 string
48 default "arch/sparc/configs/sparc32_defconfig" if SPARC32
49 default "arch/sparc/configs/sparc64_defconfig" if SPARC64
50
Sam Ravnborgfe6875e2008-12-26 15:35:16 -080051# CONFIG_BITS can be used at source level to get 32/64 bits
52config BITS
53 int
54 default 32 if SPARC32
55 default 64 if SPARC64
Sam Ravnborg5e538792008-12-02 23:17:12 -080056
Sam Ravnborg26b4c912008-11-16 20:01:17 -080057config GENERIC_TIME
58 bool
59 default y if SPARC64
60
61config GENERIC_CMOS_UPDATE
62 bool
63 default y if SPARC64
64
65config GENERIC_CLOCKEVENTS
66 bool
67 default y if SPARC64
68
69config IOMMU_HELPER
70 bool
71 default y if SPARC64
72
73config QUICKLIST
74 bool
75 default y if SPARC64
76
77config STACKTRACE_SUPPORT
78 bool
79 default y if SPARC64
80
81config LOCKDEP_SUPPORT
82 bool
83 default y if SPARC64
84
David S. Miller6a5726d2008-11-28 01:19:41 -080085config HAVE_LATENCYTOP_SUPPORT
86 bool
87 default y if SPARC64
88
Sam Ravnborg26b4c912008-11-16 20:01:17 -080089config AUDIT_ARCH
90 bool
David S. Miller7e7e93a2008-12-05 22:18:40 -080091 default y
Sam Ravnborg26b4c912008-11-16 20:01:17 -080092
93config HAVE_SETUP_PER_CPU_AREA
94 def_bool y if SPARC64
95
David S. Miller4fd78a52009-04-08 20:32:02 -070096config HAVE_DYNAMIC_PER_CPU_AREA
97 def_bool y if SPARC64
98
Sam Ravnborg26b4c912008-11-16 20:01:17 -080099config GENERIC_HARDIRQS_NO__DO_IRQ
100 bool
101 def_bool y if SPARC64
102
Linus Torvalds1da177e2005-04-16 15:20:36 -0700103config MMU
104 bool
105 default y
106
Linus Torvalds1da177e2005-04-16 15:20:36 -0700107config HIGHMEM
108 bool
Sam Ravnborg26b4c912008-11-16 20:01:17 -0800109 default y if SPARC32
Linus Torvalds1da177e2005-04-16 15:20:36 -0700110
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800111config ZONE_DMA
112 bool
Sam Ravnborg26b4c912008-11-16 20:01:17 -0800113 default y if SPARC32
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800114
Linus Torvalds1da177e2005-04-16 15:20:36 -0700115config GENERIC_ISA_DMA
116 bool
Sam Ravnborg26b4c912008-11-16 20:01:17 -0800117 default y if SPARC32
Linus Torvalds1da177e2005-04-16 15:20:36 -0700118
David S. Miller15df0f32008-08-20 23:03:24 -0700119config GENERIC_GPIO
120 bool
121 help
122 Generic GPIO API support
123
Stephen Rothwell0785b9d2007-07-18 00:09:30 -0700124config ARCH_NO_VIRT_TO_BUS
125 def_bool y
126
Stephen Rothwell97e873e2007-05-01 16:26:07 +1000127config OF
128 def_bool y
129
Akinobu Mita6a11f752009-03-31 15:23:17 -0700130config ARCH_SUPPORTS_DEBUG_PAGEALLOC
131 def_bool y if SPARC64
132
Linus Torvalds1da177e2005-04-16 15:20:36 -0700133source "init/Kconfig"
134
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700135source "kernel/Kconfig.freezer"
136
Sam Ravnborg26b4c912008-11-16 20:01:17 -0800137menu "Processor type and features"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700138
Linus Torvalds1da177e2005-04-16 15:20:36 -0700139config SMP
140 bool "Symmetric multi-processing support (does not work on sun4/sun4c)"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700141 ---help---
142 This enables support for systems with more than one CPU. If you have
143 a system with only one CPU, say N. If you have a system with more
144 than one CPU, say Y.
145
146 If you say N here, the kernel will run on single and multiprocessor
147 machines, but will use only one CPU of a multiprocessor machine. If
148 you say Y here, the kernel will run on many, but not all,
149 singleprocessor machines. On a singleprocessor machine, the kernel
150 will run faster if you say N here.
151
152 People using multiprocessor machines who say Y here should also say
153 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
154 Management" code will be disabled if you say Y here.
155
Adrian Bunk03502fa2008-02-03 15:50:21 +0200156 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
157 available at <http://www.tldp.org/docs.html#howto>.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700158
159 If you don't know what to do here, say N.
160
161config NR_CPUS
Sam Ravnborg26b4c912008-11-16 20:01:17 -0800162 int "Maximum number of CPUs"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700163 depends on SMP
Sam Ravnborg26b4c912008-11-16 20:01:17 -0800164 range 2 32 if SPARC32
165 range 2 1024 if SPARC64
166 default 32 if SPARC32
167 default 64 if SPARC64
Linus Torvalds1da177e2005-04-16 15:20:36 -0700168
Sam Ravnborg26b4c912008-11-16 20:01:17 -0800169source kernel/Kconfig.hz
170
171config RWSEM_GENERIC_SPINLOCK
172 bool
173 default y if SPARC32
174
175config RWSEM_XCHGADD_ALGORITHM
176 bool
177 default y if SPARC64
178
179config GENERIC_FIND_NEXT_BIT
180 bool
181 default y
182
183config GENERIC_HWEIGHT
184 bool
185 default y if !ULTRA_HAS_POPULATION_COUNT
186
187config GENERIC_CALIBRATE_DELAY
188 bool
189 default y
190
191config ARCH_MAY_HAVE_PC_FDC
192 bool
193 default y
194
Sam Ravnborg26b4c912008-11-16 20:01:17 -0800195config EMULATED_CMPXCHG
196 bool
197 default y if SPARC32
198 help
199 Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
200 is emulated, and therefore it is not completely atomic.
201
Sam Ravnborgd670bd42008-12-03 03:08:37 -0800202# Makefile helpers
203config SPARC32_SMP
204 bool
205 default y
206 depends on SPARC32 && SMP
207
208config SPARC64_SMP
209 bool
210 default y
211 depends on SPARC64 && SMP
212
Sam Ravnborg26b4c912008-11-16 20:01:17 -0800213choice
214 prompt "Kernel page size" if SPARC64
215 default SPARC64_PAGE_SIZE_8KB
216
217config SPARC64_PAGE_SIZE_8KB
218 bool "8KB"
219 help
220 This lets you select the page size of the kernel.
221
222 8KB and 64KB work quite well, since SPARC ELF sections
223 provide for up to 64KB alignment.
224
225 If you don't know what to do, choose 8KB.
226
227config SPARC64_PAGE_SIZE_64KB
228 bool "64KB"
229
230endchoice
231
232config SECCOMP
233 bool "Enable seccomp to safely compute untrusted bytecode"
234 depends on SPARC64 && PROC_FS
235 default y
236 help
237 This kernel feature is useful for number crunching applications
238 that may need to compute untrusted bytecode during their
239 execution. By using pipes or other transports made available to
240 the process as file descriptors supporting the read/write
241 syscalls, it's possible to isolate those applications in
242 their own address space using seccomp. Once seccomp is
243 enabled via /proc/<pid>/seccomp, it cannot be disabled
244 and the task is only allowed to execute a few safe syscalls
245 defined by each seccomp mode.
246
247 If unsure, say Y. Only embedded should say N here.
248
249config HOTPLUG_CPU
250 bool "Support for hot-pluggable CPUs"
251 depends on SPARC64 && SMP
252 select HOTPLUG
253 help
254 Say Y here to experiment with turning CPUs off and on. CPUs
255 can be controlled through /sys/devices/system/cpu/cpu#.
256 Say N if you want to disable CPU hotplug.
257
258config GENERIC_HARDIRQS
259 bool
260 default y if SPARC64
261
262source "kernel/time/Kconfig"
263
264if SPARC64
265source "drivers/cpufreq/Kconfig"
266
267config US3_FREQ
268 tristate "UltraSPARC-III CPU Frequency driver"
269 depends on CPU_FREQ
270 select CPU_FREQ_TABLE
271 help
272 This adds the CPUFreq driver for UltraSPARC-III processors.
273
274 For details, take a look at <file:Documentation/cpu-freq>.
275
276 If in doubt, say N.
277
278config US2E_FREQ
279 tristate "UltraSPARC-IIe CPU Frequency driver"
280 depends on CPU_FREQ
281 select CPU_FREQ_TABLE
282 help
283 This adds the CPUFreq driver for UltraSPARC-IIe processors.
284
285 For details, take a look at <file:Documentation/cpu-freq>.
286
287 If in doubt, say N.
288
289endif
290
291config US3_MC
292 tristate "UltraSPARC-III Memory Controller driver"
293 depends on SPARC64
294 default y
295 help
296 This adds a driver for the UltraSPARC-III memory controller.
297 Loading this driver allows exact mnemonic strings to be
298 printed in the event of a memory error, so that the faulty DIMM
299 on the motherboard can be matched to the error.
300
301 If in doubt, say Y, as this information can be very useful.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700302
303# Global things across all Sun machines.
Sam Ravnborg26b4c912008-11-16 20:01:17 -0800304config GENERIC_LOCKBREAK
305 bool
306 default y
307 depends on SPARC64 && SMP && PREEMPT
308
309choice
310 prompt "SPARC64 Huge TLB Page Size"
311 depends on SPARC64 && HUGETLB_PAGE
312 default HUGETLB_PAGE_SIZE_4MB
313
314config HUGETLB_PAGE_SIZE_4MB
315 bool "4MB"
316
317config HUGETLB_PAGE_SIZE_512K
318 bool "512K"
319
320config HUGETLB_PAGE_SIZE_64K
321 depends on !SPARC64_PAGE_SIZE_64KB
322 bool "64K"
323
324endchoice
325
326config NUMA
327 bool "NUMA support"
328 depends on SPARC64 && SMP
329
330config NODES_SHIFT
331 int
332 default "4"
333 depends on NEED_MULTIPLE_NODES
334
335# Some NUMA nodes have memory ranges that span
336# other nodes. Even though a pfn is valid and
337# between a node's start and end pfns, it may not
338# reside on that node. See memmap_init_zone()
339# for details.
340config NODES_SPAN_OTHER_NODES
341 def_bool y
342 depends on NEED_MULTIPLE_NODES
343
344config ARCH_POPULATES_NODE_MAP
345 def_bool y if SPARC64
346
347config ARCH_SELECT_MEMORY_MODEL
348 def_bool y if SPARC64
349
350config ARCH_SPARSEMEM_ENABLE
351 def_bool y if SPARC64
352 select SPARSEMEM_VMEMMAP_ENABLE
353
354config ARCH_SPARSEMEM_DEFAULT
355 def_bool y if SPARC64
356
357source "mm/Kconfig"
358
359config SCHED_SMT
360 bool "SMT (Hyperthreading) scheduler support"
361 depends on SPARC64 && SMP
362 default y
363 help
364 SMT scheduler support improves the CPU scheduler's decision making
365 when dealing with SPARC cpus at a cost of slightly increased overhead
366 in some places. If unsure say N here.
367
368config SCHED_MC
369 bool "Multi-core scheduler support"
370 depends on SPARC64 && SMP
371 default y
372 help
373 Multi-core scheduler support improves the CPU scheduler's decision
374 making when dealing with multi-core CPU chips at a cost of slightly
375 increased overhead in some places. If unsure say N here.
376
377if SPARC64
378source "kernel/Kconfig.preempt"
379endif
380
381config CMDLINE_BOOL
382 bool "Default bootloader kernel arguments"
383 depends on SPARC64
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
398config SUN_PM
399 bool
400 default y if SPARC32
401 help
402 Enable power management and CPU standby features on supported
403 SPARC platforms.
404
405config SPARC_LED
406 tristate "Sun4m LED driver"
407 depends on SPARC32
408 help
409 This driver toggles the front-panel LED on sun4m systems
410 in a user-specifiable manner. Its state can be probed
411 by reading /proc/led and its blinking mode can be changed
412 via writes to /proc/led
413
Linus Torvalds1da177e2005-04-16 15:20:36 -0700414config SERIAL_CONSOLE
415 bool
Sam Ravnborg26b4c912008-11-16 20:01:17 -0800416 depends on SPARC32
Linus Torvalds1da177e2005-04-16 15:20:36 -0700417 default y
418 ---help---
419 If you say Y here, it will be possible to use a serial port as the
420 system console (the system console is the device which receives all
421 kernel messages and warnings and which allows logins in single user
422 mode). This could be useful if some terminal or printer is connected
423 to that serial port.
424
425 Even if you say Y here, the currently visible virtual console
426 (/dev/tty0) will still be used as the system console by default, but
427 you can alter that using a kernel command line option such as
428 "console=ttyS1". (Try "man bootparam" or see the documentation of
429 your boot loader (silo) about how to pass options to the kernel at
430 boot time.)
431
432 If you don't have a graphics card installed and you say Y here, the
433 kernel will automatically use the first serial line, /dev/ttyS0, as
434 system console.
435
436 If unsure, say N.
437
Sam Ravnborg4b27e0e2008-11-15 13:44:31 -0800438endmenu
439
440menu "Bus options (PCI etc.)"
Sam Ravnborg4b27e0e2008-11-15 13:44:31 -0800441config SBUS
442 bool
443 default y
444
445config SBUSCHAR
446 bool
447 default y
448
Sam Ravnborg26b4c912008-11-16 20:01:17 -0800449config SUN_LDOMS
450 bool "Sun Logical Domains support"
451 depends on SPARC64
452 help
453 Say Y here is you want to support virtual devices via
454 Logical Domains.
455
Linus Torvalds1da177e2005-04-16 15:20:36 -0700456config PCI
457 bool "Support for PCI and PS/2 keyboard/mouse"
458 help
Sam Ravnborg26b4c912008-11-16 20:01:17 -0800459 Find out whether your system includes a PCI bus. PCI is the name of
460 a bus system, i.e. the way the CPU talks to the other stuff inside
461 your box. If you say Y here, the kernel will include drivers and
462 infrastructure code to support PCI bus devices.
463
Linus Torvalds1da177e2005-04-16 15:20:36 -0700464 CONFIG_PCI is needed for all JavaStation's (including MrCoffee),
465 CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC.
466 All of these platforms are extremely obscure, so say N if unsure.
467
Sam Ravnborg26b4c912008-11-16 20:01:17 -0800468config PCI_DOMAINS
469 def_bool PCI if SPARC64
470
Matthew Wilcox36e23592007-07-10 10:54:40 -0600471config PCI_SYSCALL
472 def_bool PCI
473
Linus Torvalds1da177e2005-04-16 15:20:36 -0700474source "drivers/pci/Kconfig"
475
David S. Millerc6afec52008-11-23 21:50:16 -0800476source "drivers/pcmcia/Kconfig"
477
Linus Torvalds1da177e2005-04-16 15:20:36 -0700478config SUN_OPENPROMFS
479 tristate "Openprom tree appears in /proc/openprom"
480 help
481 If you say Y, the OpenPROM device tree will be available as a
482 virtual file system, which you can mount to /proc/openprom by "mount
483 -t openpromfs none /proc/openprom".
484
485 To compile the /proc/openprom support as a module, choose M here: the
486 module will be called openpromfs.
487
488 Only choose N if you know in advance that you will not need to modify
489 OpenPROM settings on the running system.
490
Sam Ravnborgd670bd42008-12-03 03:08:37 -0800491# Makefile helpers
492config SPARC32_PCI
493 bool
494 default y
495 depends on SPARC32 && PCI
496
497config SPARC64_PCI
498 bool
499 default y
500 depends on SPARC64 && PCI
William Lee Irwin III30aaa802005-06-23 00:10:18 -0700501
502endmenu
503
Sam Ravnborg12e271a2008-11-15 13:43:49 -0800504menu "Executable file formats"
505
506source "fs/Kconfig.binfmt"
507
Sam Ravnborg26b4c912008-11-16 20:01:17 -0800508config COMPAT
509 bool
510 depends on SPARC64
511 default y
512 select COMPAT_BINFMT_ELF
513
514config SYSVIPC_COMPAT
515 bool
516 depends on COMPAT && SYSVIPC
517 default y
518
Sam Ravnborg12e271a2008-11-15 13:43:49 -0800519endmenu
520
Sam Ravnborgd5950b42005-07-11 21:03:49 -0700521source "net/Kconfig"
522
William Lee Irwin III30aaa802005-06-23 00:10:18 -0700523source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700524
Linus Torvalds1da177e2005-04-16 15:20:36 -0700525source "drivers/sbus/char/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700526
Linus Torvalds1da177e2005-04-16 15:20:36 -0700527source "fs/Kconfig"
528
Linus Torvalds1da177e2005-04-16 15:20:36 -0700529source "arch/sparc/Kconfig.debug"
530
531source "security/Kconfig"
532
533source "crypto/Kconfig"
534
535source "lib/Kconfig"