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1da177e4 LT |
1 | # For a description of the syntax of this configuration file, |
2 | # see Documentation/kbuild/kconfig-language.txt. | |
3 | # | |
4 | ||
5 | mainmenu "Linux/SPARC Kernel Configuration" | |
6 | ||
761b6026 BB |
7 | config 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 | ||
35da3e39 SR |
18 | config SPARC |
19 | bool | |
20 | default y | |
21 | select HAVE_IDE | |
22 | select HAVE_OPROFILE | |
26b4c912 | 23 | select HAVE_ARCH_KGDB if !SMP || SPARC64 |
35da3e39 SR |
24 | select HAVE_ARCH_TRACEHOOK |
25 | select ARCH_WANT_OPTIONAL_GPIOLIB | |
26 | select RTC_CLASS | |
27 | select RTC_DRV_M48T59 | |
28 | ||
35da3e39 | 29 | config SPARC32 |
761b6026 | 30 | def_bool !64BIT |
35da3e39 | 31 | |
26b4c912 | 32 | config SPARC64 |
761b6026 | 33 | def_bool 64BIT |
5bc05308 | 34 | select ARCH_SUPPORTS_MSI |
26b4c912 SR |
35 | select HAVE_FUNCTION_TRACER |
36 | select HAVE_KRETPROBES | |
37 | select HAVE_KPROBES | |
38 | select HAVE_LMB | |
67605d68 | 39 | select HAVE_SYSCALL_WRAPPERS |
9be12f9b DM |
40 | select HAVE_DYNAMIC_FTRACE |
41 | select HAVE_FTRACE_MCOUNT_RECORD | |
26b4c912 SR |
42 | select USE_GENERIC_SMP_HELPERS if SMP |
43 | select RTC_DRV_CMOS | |
44 | select RTC_DRV_BQ4802 | |
45 | select RTC_DRV_SUN4V | |
46 | select RTC_DRV_STARFIRE | |
47 | ||
5e538790 SR |
48 | config ARCH_DEFCONFIG |
49 | string | |
50 | default "arch/sparc/configs/sparc32_defconfig" if SPARC32 | |
51 | default "arch/sparc/configs/sparc64_defconfig" if SPARC64 | |
52 | ||
fe6875ec SR |
53 | # CONFIG_BITS can be used at source level to get 32/64 bits |
54 | config BITS | |
55 | int | |
56 | default 32 if SPARC32 | |
57 | default 64 if SPARC64 | |
5e538790 | 58 | |
26b4c912 SR |
59 | config GENERIC_TIME |
60 | bool | |
61 | default y if SPARC64 | |
62 | ||
63 | config GENERIC_CMOS_UPDATE | |
64 | bool | |
65 | default y if SPARC64 | |
66 | ||
67 | config GENERIC_CLOCKEVENTS | |
68 | bool | |
69 | default y if SPARC64 | |
70 | ||
71 | config IOMMU_HELPER | |
72 | bool | |
73 | default y if SPARC64 | |
74 | ||
75 | config QUICKLIST | |
76 | bool | |
77 | default y if SPARC64 | |
78 | ||
79 | config STACKTRACE_SUPPORT | |
80 | bool | |
81 | default y if SPARC64 | |
82 | ||
83 | config LOCKDEP_SUPPORT | |
84 | bool | |
85 | default y if SPARC64 | |
86 | ||
6a5726dd DM |
87 | config HAVE_LATENCYTOP_SUPPORT |
88 | bool | |
89 | default y if SPARC64 | |
90 | ||
26b4c912 SR |
91 | config AUDIT_ARCH |
92 | bool | |
7e7e93a2 | 93 | default y |
26b4c912 SR |
94 | |
95 | config HAVE_SETUP_PER_CPU_AREA | |
96 | def_bool y if SPARC64 | |
97 | ||
4fd78a5f DM |
98 | config HAVE_DYNAMIC_PER_CPU_AREA |
99 | def_bool y if SPARC64 | |
100 | ||
26b4c912 SR |
101 | config GENERIC_HARDIRQS_NO__DO_IRQ |
102 | bool | |
103 | def_bool y if SPARC64 | |
104 | ||
1da177e4 LT |
105 | config MMU |
106 | bool | |
107 | default y | |
108 | ||
1da177e4 LT |
109 | config HIGHMEM |
110 | bool | |
26b4c912 | 111 | default y if SPARC32 |
1da177e4 | 112 | |
5ac6da66 CL |
113 | config ZONE_DMA |
114 | bool | |
26b4c912 | 115 | default y if SPARC32 |
5ac6da66 | 116 | |
1da177e4 LT |
117 | config GENERIC_ISA_DMA |
118 | bool | |
26b4c912 | 119 | default y if SPARC32 |
1da177e4 | 120 | |
15df0f33 DM |
121 | config GENERIC_GPIO |
122 | bool | |
123 | help | |
124 | Generic GPIO API support | |
125 | ||
0785b9dc SR |
126 | config ARCH_NO_VIRT_TO_BUS |
127 | def_bool y | |
128 | ||
97e873e5 SR |
129 | config OF |
130 | def_bool y | |
131 | ||
6a11f75b AM |
132 | config ARCH_SUPPORTS_DEBUG_PAGEALLOC |
133 | def_bool y if SPARC64 | |
134 | ||
1da177e4 LT |
135 | source "init/Kconfig" |
136 | ||
dc52ddc0 MH |
137 | source "kernel/Kconfig.freezer" |
138 | ||
26b4c912 | 139 | menu "Processor type and features" |
1da177e4 | 140 | |
1da177e4 LT |
141 | config SMP |
142 | bool "Symmetric multi-processing support (does not work on sun4/sun4c)" | |
1da177e4 LT |
143 | ---help--- |
144 | This enables support for systems with more than one CPU. If you have | |
145 | a system with only one CPU, say N. If you have a system with more | |
146 | than one CPU, say Y. | |
147 | ||
148 | If you say N here, the kernel will run on single and multiprocessor | |
149 | machines, but will use only one CPU of a multiprocessor machine. If | |
150 | you say Y here, the kernel will run on many, but not all, | |
151 | singleprocessor machines. On a singleprocessor machine, the kernel | |
152 | will run faster if you say N here. | |
153 | ||
154 | People using multiprocessor machines who say Y here should also say | |
155 | Y to "Enhanced Real Time Clock Support", below. The "Advanced Power | |
156 | Management" code will be disabled if you say Y here. | |
157 | ||
03502faa AB |
158 | See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO |
159 | available at <http://www.tldp.org/docs.html#howto>. | |
1da177e4 LT |
160 | |
161 | If you don't know what to do here, say N. | |
162 | ||
163 | config NR_CPUS | |
26b4c912 | 164 | int "Maximum number of CPUs" |
1da177e4 | 165 | depends on SMP |
26b4c912 SR |
166 | range 2 32 if SPARC32 |
167 | range 2 1024 if SPARC64 | |
168 | default 32 if SPARC32 | |
169 | default 64 if SPARC64 | |
1da177e4 | 170 | |
26b4c912 | 171 | source kernel/Kconfig.hz |
1da177e4 | 172 | |
1da177e4 LT |
173 | config RWSEM_GENERIC_SPINLOCK |
174 | bool | |
26b4c912 | 175 | default y if SPARC32 |
1da177e4 LT |
176 | |
177 | config RWSEM_XCHGADD_ALGORITHM | |
178 | bool | |
26b4c912 | 179 | default y if SPARC64 |
1da177e4 | 180 | |
d59288b7 AM |
181 | config GENERIC_FIND_NEXT_BIT |
182 | bool | |
183 | default y | |
184 | ||
185 | config GENERIC_HWEIGHT | |
186 | bool | |
26b4c912 | 187 | default y if !ULTRA_HAS_POPULATION_COUNT |
d59288b7 | 188 | |
1da177e4 LT |
189 | config GENERIC_CALIBRATE_DELAY |
190 | bool | |
191 | default y | |
192 | ||
a08b6b79 AV |
193 | config ARCH_MAY_HAVE_PC_FDC |
194 | bool | |
195 | default y | |
196 | ||
5f81941c MH |
197 | config EMULATED_CMPXCHG |
198 | bool | |
26b4c912 | 199 | default y if SPARC32 |
5f81941c MH |
200 | help |
201 | Sparc32 does not have a CAS instruction like sparc64. cmpxchg() | |
202 | is emulated, and therefore it is not completely atomic. | |
203 | ||
d670bd4f SR |
204 | # Makefile helpers |
205 | config SPARC32_SMP | |
206 | bool | |
207 | default y | |
208 | depends on SPARC32 && SMP | |
209 | ||
210 | config SPARC64_SMP | |
211 | bool | |
212 | default y | |
213 | depends on SPARC64 && SMP | |
214 | ||
26b4c912 SR |
215 | choice |
216 | prompt "Kernel page size" if SPARC64 | |
217 | default SPARC64_PAGE_SIZE_8KB | |
218 | ||
219 | config SPARC64_PAGE_SIZE_8KB | |
220 | bool "8KB" | |
221 | help | |
222 | This lets you select the page size of the kernel. | |
223 | ||
224 | 8KB and 64KB work quite well, since SPARC ELF sections | |
225 | provide for up to 64KB alignment. | |
226 | ||
227 | If you don't know what to do, choose 8KB. | |
228 | ||
229 | config SPARC64_PAGE_SIZE_64KB | |
230 | bool "64KB" | |
231 | ||
232 | endchoice | |
233 | ||
234 | config SECCOMP | |
235 | bool "Enable seccomp to safely compute untrusted bytecode" | |
236 | depends on SPARC64 && PROC_FS | |
237 | default y | |
238 | help | |
239 | This kernel feature is useful for number crunching applications | |
240 | that may need to compute untrusted bytecode during their | |
241 | execution. By using pipes or other transports made available to | |
242 | the process as file descriptors supporting the read/write | |
243 | syscalls, it's possible to isolate those applications in | |
244 | their own address space using seccomp. Once seccomp is | |
245 | enabled via /proc/<pid>/seccomp, it cannot be disabled | |
246 | and the task is only allowed to execute a few safe syscalls | |
247 | defined by each seccomp mode. | |
248 | ||
249 | If unsure, say Y. Only embedded should say N here. | |
250 | ||
251 | config HOTPLUG_CPU | |
252 | bool "Support for hot-pluggable CPUs" | |
253 | depends on SPARC64 && SMP | |
254 | select HOTPLUG | |
255 | help | |
256 | Say Y here to experiment with turning CPUs off and on. CPUs | |
257 | can be controlled through /sys/devices/system/cpu/cpu#. | |
258 | Say N if you want to disable CPU hotplug. | |
259 | ||
260 | config GENERIC_HARDIRQS | |
261 | bool | |
262 | default y if SPARC64 | |
263 | ||
264 | source "kernel/time/Kconfig" | |
265 | ||
266 | if SPARC64 | |
267 | source "drivers/cpufreq/Kconfig" | |
268 | ||
269 | config US3_FREQ | |
270 | tristate "UltraSPARC-III CPU Frequency driver" | |
271 | depends on CPU_FREQ | |
272 | select CPU_FREQ_TABLE | |
273 | help | |
274 | This adds the CPUFreq driver for UltraSPARC-III processors. | |
275 | ||
276 | For details, take a look at <file:Documentation/cpu-freq>. | |
277 | ||
278 | If in doubt, say N. | |
279 | ||
280 | config US2E_FREQ | |
281 | tristate "UltraSPARC-IIe CPU Frequency driver" | |
282 | depends on CPU_FREQ | |
283 | select CPU_FREQ_TABLE | |
284 | help | |
285 | This adds the CPUFreq driver for UltraSPARC-IIe processors. | |
286 | ||
287 | For details, take a look at <file:Documentation/cpu-freq>. | |
288 | ||
289 | If in doubt, say N. | |
290 | ||
291 | endif | |
292 | ||
293 | config US3_MC | |
294 | tristate "UltraSPARC-III Memory Controller driver" | |
295 | depends on SPARC64 | |
296 | default y | |
297 | help | |
298 | This adds a driver for the UltraSPARC-III memory controller. | |
299 | Loading this driver allows exact mnemonic strings to be | |
300 | printed in the event of a memory error, so that the faulty DIMM | |
301 | on the motherboard can be matched to the error. | |
302 | ||
303 | If in doubt, say Y, as this information can be very useful. | |
304 | ||
305 | # Global things across all Sun machines. | |
306 | config GENERIC_LOCKBREAK | |
1da177e4 LT |
307 | bool |
308 | default y | |
26b4c912 SR |
309 | depends on SPARC64 && SMP && PREEMPT |
310 | ||
311 | choice | |
312 | prompt "SPARC64 Huge TLB Page Size" | |
313 | depends on SPARC64 && HUGETLB_PAGE | |
314 | default HUGETLB_PAGE_SIZE_4MB | |
315 | ||
316 | config HUGETLB_PAGE_SIZE_4MB | |
317 | bool "4MB" | |
318 | ||
319 | config HUGETLB_PAGE_SIZE_512K | |
320 | bool "512K" | |
321 | ||
322 | config HUGETLB_PAGE_SIZE_64K | |
323 | depends on !SPARC64_PAGE_SIZE_64KB | |
324 | bool "64K" | |
325 | ||
326 | endchoice | |
327 | ||
328 | config NUMA | |
329 | bool "NUMA support" | |
330 | depends on SPARC64 && SMP | |
331 | ||
332 | config NODES_SHIFT | |
333 | int | |
334 | default "4" | |
335 | depends on NEED_MULTIPLE_NODES | |
336 | ||
337 | # Some NUMA nodes have memory ranges that span | |
338 | # other nodes. Even though a pfn is valid and | |
339 | # between a node's start and end pfns, it may not | |
340 | # reside on that node. See memmap_init_zone() | |
341 | # for details. | |
342 | config NODES_SPAN_OTHER_NODES | |
343 | def_bool y | |
344 | depends on NEED_MULTIPLE_NODES | |
345 | ||
346 | config ARCH_POPULATES_NODE_MAP | |
347 | def_bool y if SPARC64 | |
348 | ||
349 | config ARCH_SELECT_MEMORY_MODEL | |
350 | def_bool y if SPARC64 | |
351 | ||
352 | config ARCH_SPARSEMEM_ENABLE | |
353 | def_bool y if SPARC64 | |
354 | select SPARSEMEM_VMEMMAP_ENABLE | |
355 | ||
356 | config ARCH_SPARSEMEM_DEFAULT | |
357 | def_bool y if SPARC64 | |
358 | ||
359 | source "mm/Kconfig" | |
360 | ||
361 | config SCHED_SMT | |
362 | bool "SMT (Hyperthreading) scheduler support" | |
363 | depends on SPARC64 && SMP | |
364 | default y | |
365 | help | |
366 | SMT scheduler support improves the CPU scheduler's decision making | |
367 | when dealing with SPARC cpus at a cost of slightly increased overhead | |
368 | in some places. If unsure say N here. | |
369 | ||
370 | config SCHED_MC | |
371 | bool "Multi-core scheduler support" | |
372 | depends on SPARC64 && SMP | |
373 | default y | |
374 | help | |
375 | Multi-core scheduler support improves the CPU scheduler's decision | |
376 | making when dealing with multi-core CPU chips at a cost of slightly | |
377 | increased overhead in some places. If unsure say N here. | |
378 | ||
379 | if SPARC64 | |
380 | source "kernel/Kconfig.preempt" | |
381 | endif | |
382 | ||
383 | config CMDLINE_BOOL | |
384 | bool "Default bootloader kernel arguments" | |
385 | depends on SPARC64 | |
386 | ||
387 | config CMDLINE | |
388 | string "Initial kernel command string" | |
389 | depends on CMDLINE_BOOL | |
390 | default "console=ttyS0,9600 root=/dev/sda1" | |
391 | help | |
392 | Say Y here if you want to be able to pass default arguments to | |
393 | the kernel. This will be overridden by the bootloader, if you | |
394 | use one (such as SILO). This is most useful if you want to boot | |
395 | a kernel from TFTP, and want default options to be available | |
396 | with having them passed on the command line. | |
397 | ||
398 | NOTE: This option WILL override the PROM bootargs setting! | |
399 | ||
400 | config SUN_PM | |
401 | bool | |
402 | default y if SPARC32 | |
1da177e4 LT |
403 | help |
404 | Enable power management and CPU standby features on supported | |
405 | SPARC platforms. | |
406 | ||
4b27e0e1 SR |
407 | config SPARC_LED |
408 | tristate "Sun4m LED driver" | |
26b4c912 | 409 | depends on SPARC32 |
4b27e0e1 SR |
410 | help |
411 | This driver toggles the front-panel LED on sun4m systems | |
412 | in a user-specifiable manner. Its state can be probed | |
413 | by reading /proc/led and its blinking mode can be changed | |
414 | via writes to /proc/led | |
415 | ||
26b4c912 SR |
416 | config SERIAL_CONSOLE |
417 | bool | |
418 | depends on SPARC32 | |
419 | default y | |
420 | ---help--- | |
421 | If you say Y here, it will be possible to use a serial port as the | |
422 | system console (the system console is the device which receives all | |
423 | kernel messages and warnings and which allows logins in single user | |
424 | mode). This could be useful if some terminal or printer is connected | |
425 | to that serial port. | |
426 | ||
427 | Even if you say Y here, the currently visible virtual console | |
428 | (/dev/tty0) will still be used as the system console by default, but | |
429 | you can alter that using a kernel command line option such as | |
430 | "console=ttyS1". (Try "man bootparam" or see the documentation of | |
431 | your boot loader (silo) about how to pass options to the kernel at | |
432 | boot time.) | |
433 | ||
434 | If you don't have a graphics card installed and you say Y here, the | |
435 | kernel will automatically use the first serial line, /dev/ttyS0, as | |
436 | system console. | |
437 | ||
438 | If unsure, say N. | |
4b27e0e1 SR |
439 | |
440 | endmenu | |
441 | ||
442 | menu "Bus options (PCI etc.)" | |
4b27e0e1 SR |
443 | config SBUS |
444 | bool | |
445 | default y | |
446 | ||
447 | config SBUSCHAR | |
448 | bool | |
449 | default y | |
450 | ||
26b4c912 SR |
451 | config SUN_LDOMS |
452 | bool "Sun Logical Domains support" | |
453 | depends on SPARC64 | |
454 | help | |
455 | Say Y here is you want to support virtual devices via | |
456 | Logical Domains. | |
457 | ||
1da177e4 LT |
458 | config PCI |
459 | bool "Support for PCI and PS/2 keyboard/mouse" | |
460 | help | |
26b4c912 SR |
461 | Find out whether your system includes a PCI bus. PCI is the name of |
462 | a bus system, i.e. the way the CPU talks to the other stuff inside | |
463 | your box. If you say Y here, the kernel will include drivers and | |
464 | infrastructure code to support PCI bus devices. | |
465 | ||
1da177e4 LT |
466 | CONFIG_PCI is needed for all JavaStation's (including MrCoffee), |
467 | CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC. | |
468 | All of these platforms are extremely obscure, so say N if unsure. | |
469 | ||
26b4c912 SR |
470 | config PCI_DOMAINS |
471 | def_bool PCI if SPARC64 | |
472 | ||
36e23590 MW |
473 | config PCI_SYSCALL |
474 | def_bool PCI | |
475 | ||
1da177e4 LT |
476 | source "drivers/pci/Kconfig" |
477 | ||
c6afec5e DM |
478 | source "drivers/pcmcia/Kconfig" |
479 | ||
1da177e4 LT |
480 | config SUN_OPENPROMFS |
481 | tristate "Openprom tree appears in /proc/openprom" | |
482 | help | |
483 | If you say Y, the OpenPROM device tree will be available as a | |
484 | virtual file system, which you can mount to /proc/openprom by "mount | |
485 | -t openpromfs none /proc/openprom". | |
486 | ||
487 | To compile the /proc/openprom support as a module, choose M here: the | |
488 | module will be called openpromfs. | |
489 | ||
490 | Only choose N if you know in advance that you will not need to modify | |
491 | OpenPROM settings on the running system. | |
492 | ||
d670bd4f SR |
493 | # Makefile helpers |
494 | config SPARC32_PCI | |
495 | bool | |
496 | default y | |
497 | depends on SPARC32 && PCI | |
498 | ||
499 | config SPARC64_PCI | |
500 | bool | |
501 | default y | |
502 | depends on SPARC64 && PCI | |
30aaa808 WLII |
503 | |
504 | endmenu | |
505 | ||
12e271a8 SR |
506 | menu "Executable file formats" |
507 | ||
508 | source "fs/Kconfig.binfmt" | |
509 | ||
26b4c912 SR |
510 | config COMPAT |
511 | bool | |
512 | depends on SPARC64 | |
513 | default y | |
514 | select COMPAT_BINFMT_ELF | |
515 | ||
516 | config SYSVIPC_COMPAT | |
517 | bool | |
518 | depends on COMPAT && SYSVIPC | |
519 | default y | |
520 | ||
12e271a8 SR |
521 | endmenu |
522 | ||
d5950b43 SR |
523 | source "net/Kconfig" |
524 | ||
30aaa808 | 525 | source "drivers/Kconfig" |
1da177e4 | 526 | |
1da177e4 | 527 | source "drivers/sbus/char/Kconfig" |
1da177e4 | 528 | |
1da177e4 LT |
529 | source "fs/Kconfig" |
530 | ||
1da177e4 LT |
531 | source "arch/sparc/Kconfig.debug" |
532 | ||
533 | source "security/Kconfig" | |
534 | ||
535 | source "crypto/Kconfig" | |
536 | ||
537 | source "lib/Kconfig" |