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