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 |
26b4c912 SR |
40 | 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 | ||
5e538790 SR |
46 | config ARCH_DEFCONFIG |
47 | string | |
48 | default "arch/sparc/configs/sparc32_defconfig" if SPARC32 | |
49 | default "arch/sparc/configs/sparc64_defconfig" if SPARC64 | |
50 | ||
fe6875ec SR |
51 | # CONFIG_BITS can be used at source level to get 32/64 bits |
52 | config BITS | |
53 | int | |
54 | default 32 if SPARC32 | |
55 | default 64 if SPARC64 | |
5e538790 | 56 | |
26b4c912 SR |
57 | config GENERIC_TIME |
58 | bool | |
59 | default y if SPARC64 | |
60 | ||
61 | config GENERIC_CMOS_UPDATE | |
62 | bool | |
63 | default y if SPARC64 | |
64 | ||
65 | config GENERIC_CLOCKEVENTS | |
66 | bool | |
67 | default y if SPARC64 | |
68 | ||
69 | config IOMMU_HELPER | |
70 | bool | |
71 | default y if SPARC64 | |
72 | ||
73 | config QUICKLIST | |
74 | bool | |
75 | default y if SPARC64 | |
76 | ||
77 | config STACKTRACE_SUPPORT | |
78 | bool | |
79 | default y if SPARC64 | |
80 | ||
81 | config LOCKDEP_SUPPORT | |
82 | bool | |
83 | default y if SPARC64 | |
84 | ||
6a5726dd DM |
85 | config HAVE_LATENCYTOP_SUPPORT |
86 | bool | |
87 | default y if SPARC64 | |
88 | ||
26b4c912 SR |
89 | config AUDIT_ARCH |
90 | bool | |
7e7e93a2 | 91 | default y |
26b4c912 SR |
92 | |
93 | config HAVE_SETUP_PER_CPU_AREA | |
94 | def_bool y if SPARC64 | |
95 | ||
4fd78a5f DM |
96 | config HAVE_DYNAMIC_PER_CPU_AREA |
97 | def_bool y if SPARC64 | |
98 | ||
26b4c912 SR |
99 | config GENERIC_HARDIRQS_NO__DO_IRQ |
100 | bool | |
101 | def_bool y if SPARC64 | |
102 | ||
1da177e4 LT |
103 | config MMU |
104 | bool | |
105 | default y | |
106 | ||
1da177e4 LT |
107 | config HIGHMEM |
108 | bool | |
26b4c912 | 109 | default y if SPARC32 |
1da177e4 | 110 | |
5ac6da66 CL |
111 | config ZONE_DMA |
112 | bool | |
26b4c912 | 113 | default y if SPARC32 |
5ac6da66 | 114 | |
1da177e4 LT |
115 | config GENERIC_ISA_DMA |
116 | bool | |
26b4c912 | 117 | default y if SPARC32 |
1da177e4 | 118 | |
15df0f33 DM |
119 | config GENERIC_GPIO |
120 | bool | |
121 | help | |
122 | Generic GPIO API support | |
123 | ||
0785b9dc SR |
124 | config ARCH_NO_VIRT_TO_BUS |
125 | def_bool y | |
126 | ||
97e873e5 SR |
127 | config OF |
128 | def_bool y | |
129 | ||
6a11f75b AM |
130 | config ARCH_SUPPORTS_DEBUG_PAGEALLOC |
131 | def_bool y if SPARC64 | |
132 | ||
1da177e4 LT |
133 | source "init/Kconfig" |
134 | ||
dc52ddc0 MH |
135 | source "kernel/Kconfig.freezer" |
136 | ||
26b4c912 | 137 | menu "Processor type and features" |
1da177e4 | 138 | |
1da177e4 LT |
139 | config SMP |
140 | bool "Symmetric multi-processing support (does not work on sun4/sun4c)" | |
1da177e4 LT |
141 | ---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 | ||
03502faa AB |
156 | See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO |
157 | available at <http://www.tldp.org/docs.html#howto>. | |
1da177e4 LT |
158 | |
159 | If you don't know what to do here, say N. | |
160 | ||
161 | config NR_CPUS | |
26b4c912 | 162 | int "Maximum number of CPUs" |
1da177e4 | 163 | depends on SMP |
26b4c912 SR |
164 | range 2 32 if SPARC32 |
165 | range 2 1024 if SPARC64 | |
166 | default 32 if SPARC32 | |
167 | default 64 if SPARC64 | |
1da177e4 | 168 | |
26b4c912 | 169 | source kernel/Kconfig.hz |
1da177e4 | 170 | |
1da177e4 LT |
171 | config RWSEM_GENERIC_SPINLOCK |
172 | bool | |
26b4c912 | 173 | default y if SPARC32 |
1da177e4 LT |
174 | |
175 | config RWSEM_XCHGADD_ALGORITHM | |
176 | bool | |
26b4c912 | 177 | default y if SPARC64 |
1da177e4 | 178 | |
d59288b7 AM |
179 | config GENERIC_FIND_NEXT_BIT |
180 | bool | |
181 | default y | |
182 | ||
183 | config GENERIC_HWEIGHT | |
184 | bool | |
26b4c912 | 185 | default y if !ULTRA_HAS_POPULATION_COUNT |
d59288b7 | 186 | |
1da177e4 LT |
187 | config GENERIC_CALIBRATE_DELAY |
188 | bool | |
189 | default y | |
190 | ||
a08b6b79 AV |
191 | config ARCH_MAY_HAVE_PC_FDC |
192 | bool | |
193 | default y | |
194 | ||
5f81941c MH |
195 | config EMULATED_CMPXCHG |
196 | bool | |
26b4c912 | 197 | default y if SPARC32 |
5f81941c MH |
198 | help |
199 | Sparc32 does not have a CAS instruction like sparc64. cmpxchg() | |
200 | is emulated, and therefore it is not completely atomic. | |
201 | ||
d670bd4f SR |
202 | # Makefile helpers |
203 | config SPARC32_SMP | |
204 | bool | |
205 | default y | |
206 | depends on SPARC32 && SMP | |
207 | ||
208 | config SPARC64_SMP | |
209 | bool | |
210 | default y | |
211 | depends on SPARC64 && SMP | |
212 | ||
26b4c912 SR |
213 | choice |
214 | prompt "Kernel page size" if SPARC64 | |
215 | default SPARC64_PAGE_SIZE_8KB | |
216 | ||
217 | config 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 | ||
227 | config SPARC64_PAGE_SIZE_64KB | |
228 | bool "64KB" | |
229 | ||
230 | endchoice | |
231 | ||
232 | config 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 | ||
249 | config 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 | ||
258 | config GENERIC_HARDIRQS | |
259 | bool | |
260 | default y if SPARC64 | |
261 | ||
262 | source "kernel/time/Kconfig" | |
263 | ||
264 | if SPARC64 | |
265 | source "drivers/cpufreq/Kconfig" | |
266 | ||
267 | config 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 | ||
278 | config 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 | ||
289 | endif | |
290 | ||
291 | config 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. | |
302 | ||
303 | # Global things across all Sun machines. | |
304 | config GENERIC_LOCKBREAK | |
1da177e4 LT |
305 | bool |
306 | default y | |
26b4c912 SR |
307 | depends on SPARC64 && SMP && PREEMPT |
308 | ||
309 | choice | |
310 | prompt "SPARC64 Huge TLB Page Size" | |
311 | depends on SPARC64 && HUGETLB_PAGE | |
312 | default HUGETLB_PAGE_SIZE_4MB | |
313 | ||
314 | config HUGETLB_PAGE_SIZE_4MB | |
315 | bool "4MB" | |
316 | ||
317 | config HUGETLB_PAGE_SIZE_512K | |
318 | bool "512K" | |
319 | ||
320 | config HUGETLB_PAGE_SIZE_64K | |
321 | depends on !SPARC64_PAGE_SIZE_64KB | |
322 | bool "64K" | |
323 | ||
324 | endchoice | |
325 | ||
326 | config NUMA | |
327 | bool "NUMA support" | |
328 | depends on SPARC64 && SMP | |
329 | ||
330 | config 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. | |
340 | config NODES_SPAN_OTHER_NODES | |
341 | def_bool y | |
342 | depends on NEED_MULTIPLE_NODES | |
343 | ||
344 | config ARCH_POPULATES_NODE_MAP | |
345 | def_bool y if SPARC64 | |
346 | ||
347 | config ARCH_SELECT_MEMORY_MODEL | |
348 | def_bool y if SPARC64 | |
349 | ||
350 | config ARCH_SPARSEMEM_ENABLE | |
351 | def_bool y if SPARC64 | |
352 | select SPARSEMEM_VMEMMAP_ENABLE | |
353 | ||
354 | config ARCH_SPARSEMEM_DEFAULT | |
355 | def_bool y if SPARC64 | |
356 | ||
357 | source "mm/Kconfig" | |
358 | ||
359 | config 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 | ||
368 | config 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 | ||
377 | if SPARC64 | |
378 | source "kernel/Kconfig.preempt" | |
379 | endif | |
380 | ||
381 | config CMDLINE_BOOL | |
382 | bool "Default bootloader kernel arguments" | |
383 | depends on SPARC64 | |
384 | ||
385 | config 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 | ||
398 | config SUN_PM | |
399 | bool | |
400 | default y if SPARC32 | |
1da177e4 LT |
401 | help |
402 | Enable power management and CPU standby features on supported | |
403 | SPARC platforms. | |
404 | ||
4b27e0e1 SR |
405 | config SPARC_LED |
406 | tristate "Sun4m LED driver" | |
26b4c912 | 407 | depends on SPARC32 |
4b27e0e1 SR |
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 | ||
26b4c912 SR |
414 | config SERIAL_CONSOLE |
415 | bool | |
416 | depends on SPARC32 | |
417 | 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. | |
4b27e0e1 SR |
437 | |
438 | endmenu | |
439 | ||
440 | menu "Bus options (PCI etc.)" | |
4b27e0e1 SR |
441 | config SBUS |
442 | bool | |
443 | default y | |
444 | ||
445 | config SBUSCHAR | |
446 | bool | |
447 | default y | |
448 | ||
26b4c912 SR |
449 | config 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 | ||
1da177e4 LT |
456 | config PCI |
457 | bool "Support for PCI and PS/2 keyboard/mouse" | |
458 | help | |
26b4c912 SR |
459 | 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 | ||
1da177e4 LT |
464 | 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 | ||
26b4c912 SR |
468 | config PCI_DOMAINS |
469 | def_bool PCI if SPARC64 | |
470 | ||
36e23590 MW |
471 | config PCI_SYSCALL |
472 | def_bool PCI | |
473 | ||
1da177e4 LT |
474 | source "drivers/pci/Kconfig" |
475 | ||
c6afec5e DM |
476 | source "drivers/pcmcia/Kconfig" |
477 | ||
1da177e4 LT |
478 | config 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 | ||
d670bd4f SR |
491 | # Makefile helpers |
492 | config SPARC32_PCI | |
493 | bool | |
494 | default y | |
495 | depends on SPARC32 && PCI | |
496 | ||
497 | config SPARC64_PCI | |
498 | bool | |
499 | default y | |
500 | depends on SPARC64 && PCI | |
30aaa808 WLII |
501 | |
502 | endmenu | |
503 | ||
12e271a8 SR |
504 | menu "Executable file formats" |
505 | ||
506 | source "fs/Kconfig.binfmt" | |
507 | ||
26b4c912 SR |
508 | config COMPAT |
509 | bool | |
510 | depends on SPARC64 | |
511 | default y | |
512 | select COMPAT_BINFMT_ELF | |
513 | ||
514 | config SYSVIPC_COMPAT | |
515 | bool | |
516 | depends on COMPAT && SYSVIPC | |
517 | default y | |
518 | ||
12e271a8 SR |
519 | endmenu |
520 | ||
d5950b43 SR |
521 | source "net/Kconfig" |
522 | ||
30aaa808 | 523 | source "drivers/Kconfig" |
1da177e4 | 524 | |
1da177e4 | 525 | source "drivers/sbus/char/Kconfig" |
1da177e4 | 526 | |
1da177e4 LT |
527 | source "fs/Kconfig" |
528 | ||
1da177e4 LT |
529 | source "arch/sparc/Kconfig.debug" |
530 | ||
531 | source "security/Kconfig" | |
532 | ||
533 | source "crypto/Kconfig" | |
534 | ||
535 | source "lib/Kconfig" |