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 | |
02f7a189 | 28 | select HAVE_DMA_ATTRS |
35da3e39 | 29 | |
35da3e39 | 30 | config SPARC32 |
761b6026 | 31 | def_bool !64BIT |
35da3e39 | 32 | |
26b4c912 | 33 | config SPARC64 |
761b6026 | 34 | def_bool 64BIT |
5bc05308 | 35 | select ARCH_SUPPORTS_MSI |
26b4c912 SR |
36 | select HAVE_FUNCTION_TRACER |
37 | select HAVE_KRETPROBES | |
38 | select HAVE_KPROBES | |
39 | select HAVE_LMB | |
67605d68 | 40 | select HAVE_SYSCALL_WRAPPERS |
9be12f9b DM |
41 | select HAVE_DYNAMIC_FTRACE |
42 | select HAVE_FTRACE_MCOUNT_RECORD | |
26b4c912 SR |
43 | select USE_GENERIC_SMP_HELPERS if SMP |
44 | select RTC_DRV_CMOS | |
45 | select RTC_DRV_BQ4802 | |
46 | select RTC_DRV_SUN4V | |
47 | select RTC_DRV_STARFIRE | |
48 | ||
5e538790 SR |
49 | config ARCH_DEFCONFIG |
50 | string | |
51 | default "arch/sparc/configs/sparc32_defconfig" if SPARC32 | |
52 | default "arch/sparc/configs/sparc64_defconfig" if SPARC64 | |
53 | ||
fe6875ec SR |
54 | # CONFIG_BITS can be used at source level to get 32/64 bits |
55 | config BITS | |
56 | int | |
57 | default 32 if SPARC32 | |
58 | default 64 if SPARC64 | |
5e538790 | 59 | |
26b4c912 SR |
60 | config GENERIC_TIME |
61 | bool | |
62 | default y if SPARC64 | |
63 | ||
64 | config GENERIC_CMOS_UPDATE | |
65 | bool | |
66 | default y if SPARC64 | |
67 | ||
68 | config GENERIC_CLOCKEVENTS | |
69 | bool | |
70 | default y if SPARC64 | |
71 | ||
72 | config IOMMU_HELPER | |
73 | bool | |
74 | default y if SPARC64 | |
75 | ||
76 | config QUICKLIST | |
77 | bool | |
78 | default y if SPARC64 | |
79 | ||
80 | config STACKTRACE_SUPPORT | |
81 | bool | |
82 | default y if SPARC64 | |
83 | ||
84 | config LOCKDEP_SUPPORT | |
85 | bool | |
86 | default y if SPARC64 | |
87 | ||
6a5726dd DM |
88 | config HAVE_LATENCYTOP_SUPPORT |
89 | bool | |
90 | default y if SPARC64 | |
91 | ||
26b4c912 SR |
92 | config AUDIT_ARCH |
93 | bool | |
7e7e93a2 | 94 | default y |
26b4c912 SR |
95 | |
96 | config HAVE_SETUP_PER_CPU_AREA | |
97 | def_bool y if SPARC64 | |
98 | ||
4fd78a5f DM |
99 | config HAVE_DYNAMIC_PER_CPU_AREA |
100 | def_bool y if SPARC64 | |
101 | ||
26b4c912 SR |
102 | config GENERIC_HARDIRQS_NO__DO_IRQ |
103 | bool | |
104 | def_bool y if SPARC64 | |
105 | ||
1da177e4 LT |
106 | config MMU |
107 | bool | |
108 | default y | |
109 | ||
1da177e4 LT |
110 | config HIGHMEM |
111 | bool | |
26b4c912 | 112 | default y if SPARC32 |
1da177e4 | 113 | |
5ac6da66 CL |
114 | config ZONE_DMA |
115 | bool | |
26b4c912 | 116 | default y if SPARC32 |
5ac6da66 | 117 | |
1da177e4 LT |
118 | config GENERIC_ISA_DMA |
119 | bool | |
26b4c912 | 120 | default y if SPARC32 |
1da177e4 | 121 | |
15df0f33 DM |
122 | config GENERIC_GPIO |
123 | bool | |
124 | help | |
125 | Generic GPIO API support | |
126 | ||
0785b9dc SR |
127 | config ARCH_NO_VIRT_TO_BUS |
128 | def_bool y | |
129 | ||
97e873e5 SR |
130 | config OF |
131 | def_bool y | |
132 | ||
6a11f75b AM |
133 | config ARCH_SUPPORTS_DEBUG_PAGEALLOC |
134 | def_bool y if SPARC64 | |
135 | ||
1da177e4 LT |
136 | source "init/Kconfig" |
137 | ||
dc52ddc0 MH |
138 | source "kernel/Kconfig.freezer" |
139 | ||
26b4c912 | 140 | menu "Processor type and features" |
1da177e4 | 141 | |
1da177e4 LT |
142 | config SMP |
143 | bool "Symmetric multi-processing support (does not work on sun4/sun4c)" | |
1da177e4 LT |
144 | ---help--- |
145 | This enables support for systems with more than one CPU. If you have | |
146 | a system with only one CPU, say N. If you have a system with more | |
147 | than one CPU, say Y. | |
148 | ||
149 | If you say N here, the kernel will run on single and multiprocessor | |
150 | machines, but will use only one CPU of a multiprocessor machine. If | |
151 | you say Y here, the kernel will run on many, but not all, | |
152 | singleprocessor machines. On a singleprocessor machine, the kernel | |
153 | will run faster if you say N here. | |
154 | ||
155 | People using multiprocessor machines who say Y here should also say | |
156 | Y to "Enhanced Real Time Clock Support", below. The "Advanced Power | |
157 | Management" code will be disabled if you say Y here. | |
158 | ||
03502faa AB |
159 | See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO |
160 | available at <http://www.tldp.org/docs.html#howto>. | |
1da177e4 LT |
161 | |
162 | If you don't know what to do here, say N. | |
163 | ||
164 | config NR_CPUS | |
26b4c912 | 165 | int "Maximum number of CPUs" |
1da177e4 | 166 | depends on SMP |
26b4c912 SR |
167 | range 2 32 if SPARC32 |
168 | range 2 1024 if SPARC64 | |
169 | default 32 if SPARC32 | |
170 | default 64 if SPARC64 | |
1da177e4 | 171 | |
26b4c912 | 172 | source kernel/Kconfig.hz |
1da177e4 | 173 | |
1da177e4 LT |
174 | config RWSEM_GENERIC_SPINLOCK |
175 | bool | |
26b4c912 | 176 | default y if SPARC32 |
1da177e4 LT |
177 | |
178 | config RWSEM_XCHGADD_ALGORITHM | |
179 | bool | |
26b4c912 | 180 | default y if SPARC64 |
1da177e4 | 181 | |
d59288b7 AM |
182 | config GENERIC_FIND_NEXT_BIT |
183 | bool | |
184 | default y | |
185 | ||
186 | config GENERIC_HWEIGHT | |
187 | bool | |
26b4c912 | 188 | default y if !ULTRA_HAS_POPULATION_COUNT |
d59288b7 | 189 | |
1da177e4 LT |
190 | config GENERIC_CALIBRATE_DELAY |
191 | bool | |
192 | default y | |
193 | ||
a08b6b79 Z |
194 | config ARCH_MAY_HAVE_PC_FDC |
195 | bool | |
196 | default y | |
197 | ||
5f81941c MH |
198 | config EMULATED_CMPXCHG |
199 | bool | |
26b4c912 | 200 | default y if SPARC32 |
5f81941c MH |
201 | help |
202 | Sparc32 does not have a CAS instruction like sparc64. cmpxchg() | |
203 | is emulated, and therefore it is not completely atomic. | |
204 | ||
d670bd4f SR |
205 | # Makefile helpers |
206 | config SPARC32_SMP | |
207 | bool | |
208 | default y | |
209 | depends on SPARC32 && SMP | |
210 | ||
211 | config SPARC64_SMP | |
212 | bool | |
213 | default y | |
214 | depends on SPARC64 && SMP | |
215 | ||
26b4c912 SR |
216 | choice |
217 | prompt "Kernel page size" if SPARC64 | |
218 | default SPARC64_PAGE_SIZE_8KB | |
219 | ||
220 | config SPARC64_PAGE_SIZE_8KB | |
221 | bool "8KB" | |
222 | help | |
223 | This lets you select the page size of the kernel. | |
224 | ||
225 | 8KB and 64KB work quite well, since SPARC ELF sections | |
226 | provide for up to 64KB alignment. | |
227 | ||
228 | If you don't know what to do, choose 8KB. | |
229 | ||
230 | config SPARC64_PAGE_SIZE_64KB | |
231 | bool "64KB" | |
232 | ||
233 | endchoice | |
234 | ||
235 | config SECCOMP | |
236 | bool "Enable seccomp to safely compute untrusted bytecode" | |
237 | depends on SPARC64 && PROC_FS | |
238 | default y | |
239 | help | |
240 | This kernel feature is useful for number crunching applications | |
241 | that may need to compute untrusted bytecode during their | |
242 | execution. By using pipes or other transports made available to | |
243 | the process as file descriptors supporting the read/write | |
244 | syscalls, it's possible to isolate those applications in | |
245 | their own address space using seccomp. Once seccomp is | |
246 | enabled via /proc/<pid>/seccomp, it cannot be disabled | |
247 | and the task is only allowed to execute a few safe syscalls | |
248 | defined by each seccomp mode. | |
249 | ||
250 | If unsure, say Y. Only embedded should say N here. | |
251 | ||
252 | config HOTPLUG_CPU | |
253 | bool "Support for hot-pluggable CPUs" | |
254 | depends on SPARC64 && SMP | |
255 | select HOTPLUG | |
256 | help | |
257 | Say Y here to experiment with turning CPUs off and on. CPUs | |
258 | can be controlled through /sys/devices/system/cpu/cpu#. | |
259 | Say N if you want to disable CPU hotplug. | |
260 | ||
261 | config GENERIC_HARDIRQS | |
262 | bool | |
263 | default y if SPARC64 | |
264 | ||
265 | source "kernel/time/Kconfig" | |
266 | ||
267 | if SPARC64 | |
268 | source "drivers/cpufreq/Kconfig" | |
269 | ||
270 | config US3_FREQ | |
271 | tristate "UltraSPARC-III CPU Frequency driver" | |
272 | depends on CPU_FREQ | |
273 | select CPU_FREQ_TABLE | |
274 | help | |
275 | This adds the CPUFreq driver for UltraSPARC-III processors. | |
276 | ||
277 | For details, take a look at <file:Documentation/cpu-freq>. | |
278 | ||
279 | If in doubt, say N. | |
280 | ||
281 | config US2E_FREQ | |
282 | tristate "UltraSPARC-IIe CPU Frequency driver" | |
283 | depends on CPU_FREQ | |
284 | select CPU_FREQ_TABLE | |
285 | help | |
286 | This adds the CPUFreq driver for UltraSPARC-IIe processors. | |
287 | ||
288 | For details, take a look at <file:Documentation/cpu-freq>. | |
289 | ||
290 | If in doubt, say N. | |
291 | ||
292 | endif | |
293 | ||
294 | config US3_MC | |
295 | tristate "UltraSPARC-III Memory Controller driver" | |
296 | depends on SPARC64 | |
297 | default y | |
298 | help | |
299 | This adds a driver for the UltraSPARC-III memory controller. | |
300 | Loading this driver allows exact mnemonic strings to be | |
301 | printed in the event of a memory error, so that the faulty DIMM | |
302 | on the motherboard can be matched to the error. | |
303 | ||
304 | If in doubt, say Y, as this information can be very useful. | |
305 | ||
306 | # Global things across all Sun machines. | |
307 | config GENERIC_LOCKBREAK | |
1da177e4 LT |
308 | bool |
309 | default y | |
26b4c912 SR |
310 | depends on SPARC64 && SMP && PREEMPT |
311 | ||
312 | choice | |
313 | prompt "SPARC64 Huge TLB Page Size" | |
314 | depends on SPARC64 && HUGETLB_PAGE | |
315 | default HUGETLB_PAGE_SIZE_4MB | |
316 | ||
317 | config HUGETLB_PAGE_SIZE_4MB | |
318 | bool "4MB" | |
319 | ||
320 | config HUGETLB_PAGE_SIZE_512K | |
321 | bool "512K" | |
322 | ||
323 | config HUGETLB_PAGE_SIZE_64K | |
324 | depends on !SPARC64_PAGE_SIZE_64KB | |
325 | bool "64K" | |
326 | ||
327 | endchoice | |
328 | ||
329 | config NUMA | |
330 | bool "NUMA support" | |
331 | depends on SPARC64 && SMP | |
332 | ||
333 | config NODES_SHIFT | |
334 | int | |
335 | default "4" | |
336 | depends on NEED_MULTIPLE_NODES | |
337 | ||
338 | # Some NUMA nodes have memory ranges that span | |
339 | # other nodes. Even though a pfn is valid and | |
340 | # between a node's start and end pfns, it may not | |
341 | # reside on that node. See memmap_init_zone() | |
342 | # for details. | |
343 | config NODES_SPAN_OTHER_NODES | |
344 | def_bool y | |
345 | depends on NEED_MULTIPLE_NODES | |
346 | ||
347 | config ARCH_POPULATES_NODE_MAP | |
348 | def_bool y if SPARC64 | |
349 | ||
350 | config ARCH_SELECT_MEMORY_MODEL | |
351 | def_bool y if SPARC64 | |
352 | ||
353 | config ARCH_SPARSEMEM_ENABLE | |
354 | def_bool y if SPARC64 | |
355 | select SPARSEMEM_VMEMMAP_ENABLE | |
356 | ||
357 | config ARCH_SPARSEMEM_DEFAULT | |
358 | def_bool y if SPARC64 | |
359 | ||
360 | source "mm/Kconfig" | |
361 | ||
362 | config SCHED_SMT | |
363 | bool "SMT (Hyperthreading) scheduler support" | |
364 | depends on SPARC64 && SMP | |
365 | default y | |
366 | help | |
367 | SMT scheduler support improves the CPU scheduler's decision making | |
368 | when dealing with SPARC cpus at a cost of slightly increased overhead | |
369 | in some places. If unsure say N here. | |
370 | ||
371 | config SCHED_MC | |
372 | bool "Multi-core scheduler support" | |
373 | depends on SPARC64 && SMP | |
374 | default y | |
375 | help | |
376 | Multi-core scheduler support improves the CPU scheduler's decision | |
377 | making when dealing with multi-core CPU chips at a cost of slightly | |
378 | increased overhead in some places. If unsure say N here. | |
379 | ||
380 | if SPARC64 | |
381 | source "kernel/Kconfig.preempt" | |
382 | endif | |
383 | ||
384 | config CMDLINE_BOOL | |
385 | bool "Default bootloader kernel arguments" | |
386 | depends on SPARC64 | |
387 | ||
388 | config CMDLINE | |
389 | string "Initial kernel command string" | |
390 | depends on CMDLINE_BOOL | |
391 | default "console=ttyS0,9600 root=/dev/sda1" | |
392 | help | |
393 | Say Y here if you want to be able to pass default arguments to | |
394 | the kernel. This will be overridden by the bootloader, if you | |
395 | use one (such as SILO). This is most useful if you want to boot | |
396 | a kernel from TFTP, and want default options to be available | |
397 | with having them passed on the command line. | |
398 | ||
399 | NOTE: This option WILL override the PROM bootargs setting! | |
400 | ||
401 | config SUN_PM | |
402 | bool | |
403 | default y if SPARC32 | |
1da177e4 LT |
404 | help |
405 | Enable power management and CPU standby features on supported | |
406 | SPARC platforms. | |
407 | ||
4b27e0e1 SR |
408 | config SPARC_LED |
409 | tristate "Sun4m LED driver" | |
26b4c912 | 410 | depends on SPARC32 |
4b27e0e1 SR |
411 | help |
412 | This driver toggles the front-panel LED on sun4m systems | |
413 | in a user-specifiable manner. Its state can be probed | |
414 | by reading /proc/led and its blinking mode can be changed | |
415 | via writes to /proc/led | |
416 | ||
26b4c912 SR |
417 | config SERIAL_CONSOLE |
418 | bool | |
419 | depends on SPARC32 | |
420 | default y | |
421 | ---help--- | |
422 | If you say Y here, it will be possible to use a serial port as the | |
423 | system console (the system console is the device which receives all | |
424 | kernel messages and warnings and which allows logins in single user | |
425 | mode). This could be useful if some terminal or printer is connected | |
426 | to that serial port. | |
427 | ||
428 | Even if you say Y here, the currently visible virtual console | |
429 | (/dev/tty0) will still be used as the system console by default, but | |
430 | you can alter that using a kernel command line option such as | |
431 | "console=ttyS1". (Try "man bootparam" or see the documentation of | |
432 | your boot loader (silo) about how to pass options to the kernel at | |
433 | boot time.) | |
434 | ||
435 | If you don't have a graphics card installed and you say Y here, the | |
436 | kernel will automatically use the first serial line, /dev/ttyS0, as | |
437 | system console. | |
438 | ||
439 | If unsure, say N. | |
4b27e0e1 SR |
440 | |
441 | endmenu | |
442 | ||
443 | menu "Bus options (PCI etc.)" | |
4b27e0e1 SR |
444 | config SBUS |
445 | bool | |
446 | default y | |
447 | ||
448 | config SBUSCHAR | |
449 | bool | |
450 | default y | |
451 | ||
26b4c912 SR |
452 | config SUN_LDOMS |
453 | bool "Sun Logical Domains support" | |
454 | depends on SPARC64 | |
455 | help | |
456 | Say Y here is you want to support virtual devices via | |
457 | Logical Domains. | |
458 | ||
1da177e4 LT |
459 | config PCI |
460 | bool "Support for PCI and PS/2 keyboard/mouse" | |
461 | help | |
26b4c912 SR |
462 | Find out whether your system includes a PCI bus. PCI is the name of |
463 | a bus system, i.e. the way the CPU talks to the other stuff inside | |
464 | your box. If you say Y here, the kernel will include drivers and | |
465 | infrastructure code to support PCI bus devices. | |
466 | ||
1da177e4 LT |
467 | CONFIG_PCI is needed for all JavaStation's (including MrCoffee), |
468 | CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC. | |
469 | All of these platforms are extremely obscure, so say N if unsure. | |
470 | ||
26b4c912 SR |
471 | config PCI_DOMAINS |
472 | def_bool PCI if SPARC64 | |
473 | ||
36e23590 MW |
474 | config PCI_SYSCALL |
475 | def_bool PCI | |
476 | ||
1da177e4 LT |
477 | source "drivers/pci/Kconfig" |
478 | ||
c6afec5e DM |
479 | source "drivers/pcmcia/Kconfig" |
480 | ||
1da177e4 LT |
481 | config SUN_OPENPROMFS |
482 | tristate "Openprom tree appears in /proc/openprom" | |
483 | help | |
484 | If you say Y, the OpenPROM device tree will be available as a | |
485 | virtual file system, which you can mount to /proc/openprom by "mount | |
486 | -t openpromfs none /proc/openprom". | |
487 | ||
488 | To compile the /proc/openprom support as a module, choose M here: the | |
489 | module will be called openpromfs. | |
490 | ||
491 | Only choose N if you know in advance that you will not need to modify | |
492 | OpenPROM settings on the running system. | |
493 | ||
d670bd4f SR |
494 | # Makefile helpers |
495 | config SPARC32_PCI | |
496 | bool | |
497 | default y | |
498 | depends on SPARC32 && PCI | |
499 | ||
500 | config SPARC64_PCI | |
501 | bool | |
502 | default y | |
503 | depends on SPARC64 && PCI | |
30aaa808 WLII |
504 | |
505 | endmenu | |
506 | ||
12e271a8 SR |
507 | menu "Executable file formats" |
508 | ||
509 | source "fs/Kconfig.binfmt" | |
510 | ||
26b4c912 SR |
511 | config COMPAT |
512 | bool | |
513 | depends on SPARC64 | |
514 | default y | |
515 | select COMPAT_BINFMT_ELF | |
516 | ||
517 | config SYSVIPC_COMPAT | |
518 | bool | |
519 | depends on COMPAT && SYSVIPC | |
520 | default y | |
521 | ||
12e271a8 SR |
522 | endmenu |
523 | ||
d5950b43 SR |
524 | source "net/Kconfig" |
525 | ||
30aaa808 | 526 | source "drivers/Kconfig" |
1da177e4 | 527 | |
1da177e4 | 528 | source "drivers/sbus/char/Kconfig" |
1da177e4 | 529 | |
1da177e4 LT |
530 | source "fs/Kconfig" |
531 | ||
1da177e4 LT |
532 | source "arch/sparc/Kconfig.debug" |
533 | ||
534 | source "security/Kconfig" | |
535 | ||
536 | source "crypto/Kconfig" | |
537 | ||
538 | source "lib/Kconfig" |