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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 | ||
35da3e39 SR |
7 | config SPARC |
8 | bool | |
9 | default y | |
10 | select HAVE_IDE | |
11 | select HAVE_OPROFILE | |
26b4c912 | 12 | select HAVE_ARCH_KGDB if !SMP || SPARC64 |
35da3e39 SR |
13 | select HAVE_ARCH_TRACEHOOK |
14 | select ARCH_WANT_OPTIONAL_GPIOLIB | |
15 | select RTC_CLASS | |
16 | select RTC_DRV_M48T59 | |
17 | ||
18 | # Identify this as a Sparc32 build | |
19 | config SPARC32 | |
20 | bool | |
26b4c912 | 21 | default y if ARCH = "sparc" |
35da3e39 SR |
22 | help |
23 | SPARC is a family of RISC microprocessors designed and marketed by | |
24 | Sun Microsystems, incorporated. They are very widely found in Sun | |
25 | workstations and clones. This port covers the original 32-bit SPARC; | |
26 | it is old and stable and usually considered one of the "big three" | |
27 | along with the Intel and Alpha ports. The UltraLinux project | |
28 | maintains both the SPARC32 and SPARC64 ports; its web page is | |
29 | available at <http://www.ultralinux.org/>. | |
30 | ||
26b4c912 SR |
31 | config SPARC64 |
32 | bool | |
33 | default y if ARCH = "sparc64" | |
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 64BIT |
57 | def_bool y if SPARC64 | |
58 | ||
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 | ||
1da177e4 LT |
129 | source "init/Kconfig" |
130 | ||
dc52ddc0 MH |
131 | source "kernel/Kconfig.freezer" |
132 | ||
26b4c912 | 133 | menu "Processor type and features" |
1da177e4 | 134 | |
1da177e4 LT |
135 | config SMP |
136 | bool "Symmetric multi-processing support (does not work on sun4/sun4c)" | |
1da177e4 LT |
137 | ---help--- |
138 | This enables support for systems with more than one CPU. If you have | |
139 | a system with only one CPU, say N. If you have a system with more | |
140 | than one CPU, say Y. | |
141 | ||
142 | If you say N here, the kernel will run on single and multiprocessor | |
143 | machines, but will use only one CPU of a multiprocessor machine. If | |
144 | you say Y here, the kernel will run on many, but not all, | |
145 | singleprocessor machines. On a singleprocessor machine, the kernel | |
146 | will run faster if you say N here. | |
147 | ||
148 | People using multiprocessor machines who say Y here should also say | |
149 | Y to "Enhanced Real Time Clock Support", below. The "Advanced Power | |
150 | Management" code will be disabled if you say Y here. | |
151 | ||
03502faa AB |
152 | See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO |
153 | available at <http://www.tldp.org/docs.html#howto>. | |
1da177e4 LT |
154 | |
155 | If you don't know what to do here, say N. | |
156 | ||
157 | config NR_CPUS | |
26b4c912 | 158 | int "Maximum number of CPUs" |
1da177e4 | 159 | depends on SMP |
26b4c912 SR |
160 | range 2 32 if SPARC32 |
161 | range 2 1024 if SPARC64 | |
162 | default 32 if SPARC32 | |
163 | default 64 if SPARC64 | |
1da177e4 | 164 | |
26b4c912 | 165 | source kernel/Kconfig.hz |
1da177e4 | 166 | |
1da177e4 LT |
167 | config RWSEM_GENERIC_SPINLOCK |
168 | bool | |
26b4c912 | 169 | default y if SPARC32 |
1da177e4 LT |
170 | |
171 | config RWSEM_XCHGADD_ALGORITHM | |
172 | bool | |
26b4c912 | 173 | default y if SPARC64 |
1da177e4 | 174 | |
d59288b7 AM |
175 | config GENERIC_FIND_NEXT_BIT |
176 | bool | |
177 | default y | |
178 | ||
179 | config GENERIC_HWEIGHT | |
180 | bool | |
26b4c912 | 181 | default y if !ULTRA_HAS_POPULATION_COUNT |
d59288b7 | 182 | |
1da177e4 LT |
183 | config GENERIC_CALIBRATE_DELAY |
184 | bool | |
185 | default y | |
186 | ||
a08b6b79 AV |
187 | config ARCH_MAY_HAVE_PC_FDC |
188 | bool | |
189 | default y | |
190 | ||
5f81941c MH |
191 | config EMULATED_CMPXCHG |
192 | bool | |
26b4c912 | 193 | default y if SPARC32 |
5f81941c MH |
194 | help |
195 | Sparc32 does not have a CAS instruction like sparc64. cmpxchg() | |
196 | is emulated, and therefore it is not completely atomic. | |
197 | ||
d670bd4f SR |
198 | # Makefile helpers |
199 | config SPARC32_SMP | |
200 | bool | |
201 | default y | |
202 | depends on SPARC32 && SMP | |
203 | ||
204 | config SPARC64_SMP | |
205 | bool | |
206 | default y | |
207 | depends on SPARC64 && SMP | |
208 | ||
26b4c912 SR |
209 | choice |
210 | prompt "Kernel page size" if SPARC64 | |
211 | default SPARC64_PAGE_SIZE_8KB | |
212 | ||
213 | config SPARC64_PAGE_SIZE_8KB | |
214 | bool "8KB" | |
215 | help | |
216 | This lets you select the page size of the kernel. | |
217 | ||
218 | 8KB and 64KB work quite well, since SPARC ELF sections | |
219 | provide for up to 64KB alignment. | |
220 | ||
221 | If you don't know what to do, choose 8KB. | |
222 | ||
223 | config SPARC64_PAGE_SIZE_64KB | |
224 | bool "64KB" | |
225 | ||
226 | endchoice | |
227 | ||
228 | config SECCOMP | |
229 | bool "Enable seccomp to safely compute untrusted bytecode" | |
230 | depends on SPARC64 && PROC_FS | |
231 | default y | |
232 | help | |
233 | This kernel feature is useful for number crunching applications | |
234 | that may need to compute untrusted bytecode during their | |
235 | execution. By using pipes or other transports made available to | |
236 | the process as file descriptors supporting the read/write | |
237 | syscalls, it's possible to isolate those applications in | |
238 | their own address space using seccomp. Once seccomp is | |
239 | enabled via /proc/<pid>/seccomp, it cannot be disabled | |
240 | and the task is only allowed to execute a few safe syscalls | |
241 | defined by each seccomp mode. | |
242 | ||
243 | If unsure, say Y. Only embedded should say N here. | |
244 | ||
245 | config HOTPLUG_CPU | |
246 | bool "Support for hot-pluggable CPUs" | |
247 | depends on SPARC64 && SMP | |
248 | select HOTPLUG | |
249 | help | |
250 | Say Y here to experiment with turning CPUs off and on. CPUs | |
251 | can be controlled through /sys/devices/system/cpu/cpu#. | |
252 | Say N if you want to disable CPU hotplug. | |
253 | ||
254 | config GENERIC_HARDIRQS | |
255 | bool | |
256 | default y if SPARC64 | |
257 | ||
258 | source "kernel/time/Kconfig" | |
259 | ||
260 | if SPARC64 | |
261 | source "drivers/cpufreq/Kconfig" | |
262 | ||
263 | config US3_FREQ | |
264 | tristate "UltraSPARC-III CPU Frequency driver" | |
265 | depends on CPU_FREQ | |
266 | select CPU_FREQ_TABLE | |
267 | help | |
268 | This adds the CPUFreq driver for UltraSPARC-III processors. | |
269 | ||
270 | For details, take a look at <file:Documentation/cpu-freq>. | |
271 | ||
272 | If in doubt, say N. | |
273 | ||
274 | config US2E_FREQ | |
275 | tristate "UltraSPARC-IIe CPU Frequency driver" | |
276 | depends on CPU_FREQ | |
277 | select CPU_FREQ_TABLE | |
278 | help | |
279 | This adds the CPUFreq driver for UltraSPARC-IIe processors. | |
280 | ||
281 | For details, take a look at <file:Documentation/cpu-freq>. | |
282 | ||
283 | If in doubt, say N. | |
284 | ||
285 | endif | |
286 | ||
287 | config US3_MC | |
288 | tristate "UltraSPARC-III Memory Controller driver" | |
289 | depends on SPARC64 | |
290 | default y | |
291 | help | |
292 | This adds a driver for the UltraSPARC-III memory controller. | |
293 | Loading this driver allows exact mnemonic strings to be | |
294 | printed in the event of a memory error, so that the faulty DIMM | |
295 | on the motherboard can be matched to the error. | |
296 | ||
297 | If in doubt, say Y, as this information can be very useful. | |
298 | ||
299 | # Global things across all Sun machines. | |
300 | config GENERIC_LOCKBREAK | |
1da177e4 LT |
301 | bool |
302 | default y | |
26b4c912 SR |
303 | depends on SPARC64 && SMP && PREEMPT |
304 | ||
305 | choice | |
306 | prompt "SPARC64 Huge TLB Page Size" | |
307 | depends on SPARC64 && HUGETLB_PAGE | |
308 | default HUGETLB_PAGE_SIZE_4MB | |
309 | ||
310 | config HUGETLB_PAGE_SIZE_4MB | |
311 | bool "4MB" | |
312 | ||
313 | config HUGETLB_PAGE_SIZE_512K | |
314 | bool "512K" | |
315 | ||
316 | config HUGETLB_PAGE_SIZE_64K | |
317 | depends on !SPARC64_PAGE_SIZE_64KB | |
318 | bool "64K" | |
319 | ||
320 | endchoice | |
321 | ||
322 | config NUMA | |
323 | bool "NUMA support" | |
324 | depends on SPARC64 && SMP | |
325 | ||
326 | config NODES_SHIFT | |
327 | int | |
328 | default "4" | |
329 | depends on NEED_MULTIPLE_NODES | |
330 | ||
331 | # Some NUMA nodes have memory ranges that span | |
332 | # other nodes. Even though a pfn is valid and | |
333 | # between a node's start and end pfns, it may not | |
334 | # reside on that node. See memmap_init_zone() | |
335 | # for details. | |
336 | config NODES_SPAN_OTHER_NODES | |
337 | def_bool y | |
338 | depends on NEED_MULTIPLE_NODES | |
339 | ||
340 | config ARCH_POPULATES_NODE_MAP | |
341 | def_bool y if SPARC64 | |
342 | ||
343 | config ARCH_SELECT_MEMORY_MODEL | |
344 | def_bool y if SPARC64 | |
345 | ||
346 | config ARCH_SPARSEMEM_ENABLE | |
347 | def_bool y if SPARC64 | |
348 | select SPARSEMEM_VMEMMAP_ENABLE | |
349 | ||
350 | config ARCH_SPARSEMEM_DEFAULT | |
351 | def_bool y if SPARC64 | |
352 | ||
353 | source "mm/Kconfig" | |
354 | ||
355 | config SCHED_SMT | |
356 | bool "SMT (Hyperthreading) scheduler support" | |
357 | depends on SPARC64 && SMP | |
358 | default y | |
359 | help | |
360 | SMT scheduler support improves the CPU scheduler's decision making | |
361 | when dealing with SPARC cpus at a cost of slightly increased overhead | |
362 | in some places. If unsure say N here. | |
363 | ||
364 | config SCHED_MC | |
365 | bool "Multi-core scheduler support" | |
366 | depends on SPARC64 && SMP | |
367 | default y | |
368 | help | |
369 | Multi-core scheduler support improves the CPU scheduler's decision | |
370 | making when dealing with multi-core CPU chips at a cost of slightly | |
371 | increased overhead in some places. If unsure say N here. | |
372 | ||
373 | if SPARC64 | |
374 | source "kernel/Kconfig.preempt" | |
375 | endif | |
376 | ||
377 | config CMDLINE_BOOL | |
378 | bool "Default bootloader kernel arguments" | |
379 | depends on SPARC64 | |
380 | ||
381 | config CMDLINE | |
382 | string "Initial kernel command string" | |
383 | depends on CMDLINE_BOOL | |
384 | default "console=ttyS0,9600 root=/dev/sda1" | |
385 | help | |
386 | Say Y here if you want to be able to pass default arguments to | |
387 | the kernel. This will be overridden by the bootloader, if you | |
388 | use one (such as SILO). This is most useful if you want to boot | |
389 | a kernel from TFTP, and want default options to be available | |
390 | with having them passed on the command line. | |
391 | ||
392 | NOTE: This option WILL override the PROM bootargs setting! | |
393 | ||
394 | config SUN_PM | |
395 | bool | |
396 | default y if SPARC32 | |
1da177e4 LT |
397 | help |
398 | Enable power management and CPU standby features on supported | |
399 | SPARC platforms. | |
400 | ||
4b27e0e1 SR |
401 | config SPARC_LED |
402 | tristate "Sun4m LED driver" | |
26b4c912 | 403 | depends on SPARC32 |
4b27e0e1 SR |
404 | help |
405 | This driver toggles the front-panel LED on sun4m systems | |
406 | in a user-specifiable manner. Its state can be probed | |
407 | by reading /proc/led and its blinking mode can be changed | |
408 | via writes to /proc/led | |
409 | ||
26b4c912 SR |
410 | config SERIAL_CONSOLE |
411 | bool | |
412 | depends on SPARC32 | |
413 | default y | |
414 | ---help--- | |
415 | If you say Y here, it will be possible to use a serial port as the | |
416 | system console (the system console is the device which receives all | |
417 | kernel messages and warnings and which allows logins in single user | |
418 | mode). This could be useful if some terminal or printer is connected | |
419 | to that serial port. | |
420 | ||
421 | Even if you say Y here, the currently visible virtual console | |
422 | (/dev/tty0) will still be used as the system console by default, but | |
423 | you can alter that using a kernel command line option such as | |
424 | "console=ttyS1". (Try "man bootparam" or see the documentation of | |
425 | your boot loader (silo) about how to pass options to the kernel at | |
426 | boot time.) | |
427 | ||
428 | If you don't have a graphics card installed and you say Y here, the | |
429 | kernel will automatically use the first serial line, /dev/ttyS0, as | |
430 | system console. | |
431 | ||
432 | If unsure, say N. | |
4b27e0e1 SR |
433 | |
434 | endmenu | |
435 | ||
436 | menu "Bus options (PCI etc.)" | |
4b27e0e1 SR |
437 | config SBUS |
438 | bool | |
439 | default y | |
440 | ||
441 | config SBUSCHAR | |
442 | bool | |
443 | default y | |
444 | ||
26b4c912 SR |
445 | config SUN_LDOMS |
446 | bool "Sun Logical Domains support" | |
447 | depends on SPARC64 | |
448 | help | |
449 | Say Y here is you want to support virtual devices via | |
450 | Logical Domains. | |
451 | ||
1da177e4 LT |
452 | config PCI |
453 | bool "Support for PCI and PS/2 keyboard/mouse" | |
454 | help | |
26b4c912 SR |
455 | Find out whether your system includes a PCI bus. PCI is the name of |
456 | a bus system, i.e. the way the CPU talks to the other stuff inside | |
457 | your box. If you say Y here, the kernel will include drivers and | |
458 | infrastructure code to support PCI bus devices. | |
459 | ||
1da177e4 LT |
460 | CONFIG_PCI is needed for all JavaStation's (including MrCoffee), |
461 | CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC. | |
462 | All of these platforms are extremely obscure, so say N if unsure. | |
463 | ||
26b4c912 SR |
464 | config PCI_DOMAINS |
465 | def_bool PCI if SPARC64 | |
466 | ||
36e23590 MW |
467 | config PCI_SYSCALL |
468 | def_bool PCI | |
469 | ||
1da177e4 LT |
470 | source "drivers/pci/Kconfig" |
471 | ||
c6afec5e DM |
472 | source "drivers/pcmcia/Kconfig" |
473 | ||
1da177e4 LT |
474 | config SUN_OPENPROMFS |
475 | tristate "Openprom tree appears in /proc/openprom" | |
476 | help | |
477 | If you say Y, the OpenPROM device tree will be available as a | |
478 | virtual file system, which you can mount to /proc/openprom by "mount | |
479 | -t openpromfs none /proc/openprom". | |
480 | ||
481 | To compile the /proc/openprom support as a module, choose M here: the | |
482 | module will be called openpromfs. | |
483 | ||
484 | Only choose N if you know in advance that you will not need to modify | |
485 | OpenPROM settings on the running system. | |
486 | ||
d670bd4f SR |
487 | # Makefile helpers |
488 | config SPARC32_PCI | |
489 | bool | |
490 | default y | |
491 | depends on SPARC32 && PCI | |
492 | ||
493 | config SPARC64_PCI | |
494 | bool | |
495 | default y | |
496 | depends on SPARC64 && PCI | |
30aaa808 WLII |
497 | |
498 | endmenu | |
499 | ||
12e271a8 SR |
500 | menu "Executable file formats" |
501 | ||
502 | source "fs/Kconfig.binfmt" | |
503 | ||
26b4c912 SR |
504 | config COMPAT |
505 | bool | |
506 | depends on SPARC64 | |
507 | default y | |
508 | select COMPAT_BINFMT_ELF | |
509 | ||
510 | config SYSVIPC_COMPAT | |
511 | bool | |
512 | depends on COMPAT && SYSVIPC | |
513 | default y | |
514 | ||
12e271a8 SR |
515 | endmenu |
516 | ||
d5950b43 SR |
517 | source "net/Kconfig" |
518 | ||
30aaa808 | 519 | source "drivers/Kconfig" |
1da177e4 | 520 | |
1da177e4 | 521 | source "drivers/sbus/char/Kconfig" |
1da177e4 | 522 | |
1da177e4 LT |
523 | source "fs/Kconfig" |
524 | ||
1da177e4 LT |
525 | source "arch/sparc/Kconfig.debug" |
526 | ||
527 | source "security/Kconfig" | |
528 | ||
529 | source "crypto/Kconfig" | |
530 | ||
531 | source "lib/Kconfig" |