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