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 | ||
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" | |
34 | select HAVE_FUNCTION_TRACER | |
35 | select HAVE_KRETPROBES | |
36 | select HAVE_KPROBES | |
37 | select HAVE_LMB | |
38 | select USE_GENERIC_SMP_HELPERS if SMP | |
39 | select RTC_DRV_CMOS | |
40 | select RTC_DRV_BQ4802 | |
41 | select RTC_DRV_SUN4V | |
42 | select RTC_DRV_STARFIRE | |
43 | ||
5e538790 SR |
44 | config ARCH_DEFCONFIG |
45 | string | |
46 | default "arch/sparc/configs/sparc32_defconfig" if SPARC32 | |
47 | default "arch/sparc/configs/sparc64_defconfig" if SPARC64 | |
48 | ||
49 | ||
50 | ||
26b4c912 SR |
51 | config 64BIT |
52 | def_bool y if SPARC64 | |
53 | ||
54 | config GENERIC_TIME | |
55 | bool | |
56 | default y if SPARC64 | |
57 | ||
58 | config GENERIC_CMOS_UPDATE | |
59 | bool | |
60 | default y if SPARC64 | |
61 | ||
62 | config GENERIC_CLOCKEVENTS | |
63 | bool | |
64 | default y if SPARC64 | |
65 | ||
66 | config IOMMU_HELPER | |
67 | bool | |
68 | default y if SPARC64 | |
69 | ||
70 | config QUICKLIST | |
71 | bool | |
72 | default y if SPARC64 | |
73 | ||
74 | config STACKTRACE_SUPPORT | |
75 | bool | |
76 | default y if SPARC64 | |
77 | ||
78 | config LOCKDEP_SUPPORT | |
79 | bool | |
80 | default y if SPARC64 | |
81 | ||
6a5726dd DM |
82 | config HAVE_LATENCYTOP_SUPPORT |
83 | bool | |
84 | default y if SPARC64 | |
85 | ||
26b4c912 SR |
86 | config AUDIT_ARCH |
87 | bool | |
88 | default y if SPARC64 | |
89 | ||
90 | config HAVE_SETUP_PER_CPU_AREA | |
91 | def_bool y if SPARC64 | |
92 | ||
93 | config GENERIC_HARDIRQS_NO__DO_IRQ | |
94 | bool | |
95 | def_bool y if SPARC64 | |
96 | ||
1da177e4 LT |
97 | config MMU |
98 | bool | |
99 | default y | |
100 | ||
1da177e4 LT |
101 | config HIGHMEM |
102 | bool | |
26b4c912 | 103 | default y if SPARC32 |
1da177e4 | 104 | |
5ac6da66 CL |
105 | config ZONE_DMA |
106 | bool | |
26b4c912 | 107 | default y if SPARC32 |
5ac6da66 | 108 | |
1da177e4 LT |
109 | config GENERIC_ISA_DMA |
110 | bool | |
26b4c912 | 111 | default y if SPARC32 |
1da177e4 | 112 | |
15df0f33 DM |
113 | config GENERIC_GPIO |
114 | bool | |
115 | help | |
116 | Generic GPIO API support | |
117 | ||
0785b9dc SR |
118 | config ARCH_NO_VIRT_TO_BUS |
119 | def_bool y | |
120 | ||
97e873e5 SR |
121 | config OF |
122 | def_bool y | |
123 | ||
1da177e4 LT |
124 | source "init/Kconfig" |
125 | ||
dc52ddc0 MH |
126 | source "kernel/Kconfig.freezer" |
127 | ||
26b4c912 | 128 | menu "Processor type and features" |
1da177e4 | 129 | |
1da177e4 LT |
130 | config SMP |
131 | bool "Symmetric multi-processing support (does not work on sun4/sun4c)" | |
1da177e4 LT |
132 | ---help--- |
133 | This enables support for systems with more than one CPU. If you have | |
134 | a system with only one CPU, say N. If you have a system with more | |
135 | than one CPU, say Y. | |
136 | ||
137 | If you say N here, the kernel will run on single and multiprocessor | |
138 | machines, but will use only one CPU of a multiprocessor machine. If | |
139 | you say Y here, the kernel will run on many, but not all, | |
140 | singleprocessor machines. On a singleprocessor machine, the kernel | |
141 | will run faster if you say N here. | |
142 | ||
143 | People using multiprocessor machines who say Y here should also say | |
144 | Y to "Enhanced Real Time Clock Support", below. The "Advanced Power | |
145 | Management" code will be disabled if you say Y here. | |
146 | ||
03502faa AB |
147 | See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO |
148 | available at <http://www.tldp.org/docs.html#howto>. | |
1da177e4 LT |
149 | |
150 | If you don't know what to do here, say N. | |
151 | ||
152 | config NR_CPUS | |
26b4c912 | 153 | int "Maximum number of CPUs" |
1da177e4 | 154 | depends on SMP |
26b4c912 SR |
155 | range 2 32 if SPARC32 |
156 | range 2 1024 if SPARC64 | |
157 | default 32 if SPARC32 | |
158 | default 64 if SPARC64 | |
1da177e4 | 159 | |
26b4c912 | 160 | source kernel/Kconfig.hz |
1da177e4 | 161 | |
1da177e4 LT |
162 | config RWSEM_GENERIC_SPINLOCK |
163 | bool | |
26b4c912 | 164 | default y if SPARC32 |
1da177e4 LT |
165 | |
166 | config RWSEM_XCHGADD_ALGORITHM | |
167 | bool | |
26b4c912 | 168 | default y if SPARC64 |
1da177e4 | 169 | |
d59288b7 AM |
170 | config GENERIC_FIND_NEXT_BIT |
171 | bool | |
172 | default y | |
173 | ||
174 | config GENERIC_HWEIGHT | |
175 | bool | |
26b4c912 | 176 | default y if !ULTRA_HAS_POPULATION_COUNT |
d59288b7 | 177 | |
1da177e4 LT |
178 | config GENERIC_CALIBRATE_DELAY |
179 | bool | |
180 | default y | |
181 | ||
a08b6b79 Z |
182 | config ARCH_MAY_HAVE_PC_FDC |
183 | bool | |
184 | default y | |
185 | ||
f0d1b0b3 DH |
186 | config ARCH_HAS_ILOG2_U32 |
187 | bool | |
188 | default n | |
189 | ||
190 | config ARCH_HAS_ILOG2_U64 | |
191 | bool | |
192 | default n | |
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 | ||
26b4c912 SR |
201 | choice |
202 | prompt "Kernel page size" if SPARC64 | |
203 | default SPARC64_PAGE_SIZE_8KB | |
204 | ||
205 | config SPARC64_PAGE_SIZE_8KB | |
206 | bool "8KB" | |
207 | help | |
208 | This lets you select the page size of the kernel. | |
209 | ||
210 | 8KB and 64KB work quite well, since SPARC ELF sections | |
211 | provide for up to 64KB alignment. | |
212 | ||
213 | If you don't know what to do, choose 8KB. | |
214 | ||
215 | config SPARC64_PAGE_SIZE_64KB | |
216 | bool "64KB" | |
217 | ||
218 | endchoice | |
219 | ||
220 | config SECCOMP | |
221 | bool "Enable seccomp to safely compute untrusted bytecode" | |
222 | depends on SPARC64 && PROC_FS | |
223 | default y | |
224 | help | |
225 | This kernel feature is useful for number crunching applications | |
226 | that may need to compute untrusted bytecode during their | |
227 | execution. By using pipes or other transports made available to | |
228 | the process as file descriptors supporting the read/write | |
229 | syscalls, it's possible to isolate those applications in | |
230 | their own address space using seccomp. Once seccomp is | |
231 | enabled via /proc/<pid>/seccomp, it cannot be disabled | |
232 | and the task is only allowed to execute a few safe syscalls | |
233 | defined by each seccomp mode. | |
234 | ||
235 | If unsure, say Y. Only embedded should say N here. | |
236 | ||
237 | config HOTPLUG_CPU | |
238 | bool "Support for hot-pluggable CPUs" | |
239 | depends on SPARC64 && SMP | |
240 | select HOTPLUG | |
241 | help | |
242 | Say Y here to experiment with turning CPUs off and on. CPUs | |
243 | can be controlled through /sys/devices/system/cpu/cpu#. | |
244 | Say N if you want to disable CPU hotplug. | |
245 | ||
246 | config GENERIC_HARDIRQS | |
247 | bool | |
248 | default y if SPARC64 | |
249 | ||
250 | source "kernel/time/Kconfig" | |
251 | ||
252 | if SPARC64 | |
253 | source "drivers/cpufreq/Kconfig" | |
254 | ||
255 | config US3_FREQ | |
256 | tristate "UltraSPARC-III CPU Frequency driver" | |
257 | depends on CPU_FREQ | |
258 | select CPU_FREQ_TABLE | |
259 | help | |
260 | This adds the CPUFreq driver for UltraSPARC-III processors. | |
261 | ||
262 | For details, take a look at <file:Documentation/cpu-freq>. | |
263 | ||
264 | If in doubt, say N. | |
265 | ||
266 | config US2E_FREQ | |
267 | tristate "UltraSPARC-IIe CPU Frequency driver" | |
268 | depends on CPU_FREQ | |
269 | select CPU_FREQ_TABLE | |
270 | help | |
271 | This adds the CPUFreq driver for UltraSPARC-IIe processors. | |
272 | ||
273 | For details, take a look at <file:Documentation/cpu-freq>. | |
274 | ||
275 | If in doubt, say N. | |
276 | ||
277 | endif | |
278 | ||
279 | config US3_MC | |
280 | tristate "UltraSPARC-III Memory Controller driver" | |
281 | depends on SPARC64 | |
282 | default y | |
283 | help | |
284 | This adds a driver for the UltraSPARC-III memory controller. | |
285 | Loading this driver allows exact mnemonic strings to be | |
286 | printed in the event of a memory error, so that the faulty DIMM | |
287 | on the motherboard can be matched to the error. | |
288 | ||
289 | If in doubt, say Y, as this information can be very useful. | |
290 | ||
291 | # Global things across all Sun machines. | |
292 | config GENERIC_LOCKBREAK | |
1da177e4 LT |
293 | bool |
294 | default y | |
26b4c912 SR |
295 | depends on SPARC64 && SMP && PREEMPT |
296 | ||
297 | choice | |
298 | prompt "SPARC64 Huge TLB Page Size" | |
299 | depends on SPARC64 && HUGETLB_PAGE | |
300 | default HUGETLB_PAGE_SIZE_4MB | |
301 | ||
302 | config HUGETLB_PAGE_SIZE_4MB | |
303 | bool "4MB" | |
304 | ||
305 | config HUGETLB_PAGE_SIZE_512K | |
306 | bool "512K" | |
307 | ||
308 | config HUGETLB_PAGE_SIZE_64K | |
309 | depends on !SPARC64_PAGE_SIZE_64KB | |
310 | bool "64K" | |
311 | ||
312 | endchoice | |
313 | ||
314 | config NUMA | |
315 | bool "NUMA support" | |
316 | depends on SPARC64 && SMP | |
317 | ||
318 | config NODES_SHIFT | |
319 | int | |
320 | default "4" | |
321 | depends on NEED_MULTIPLE_NODES | |
322 | ||
323 | # Some NUMA nodes have memory ranges that span | |
324 | # other nodes. Even though a pfn is valid and | |
325 | # between a node's start and end pfns, it may not | |
326 | # reside on that node. See memmap_init_zone() | |
327 | # for details. | |
328 | config NODES_SPAN_OTHER_NODES | |
329 | def_bool y | |
330 | depends on NEED_MULTIPLE_NODES | |
331 | ||
332 | config ARCH_POPULATES_NODE_MAP | |
333 | def_bool y if SPARC64 | |
334 | ||
335 | config ARCH_SELECT_MEMORY_MODEL | |
336 | def_bool y if SPARC64 | |
337 | ||
338 | config ARCH_SPARSEMEM_ENABLE | |
339 | def_bool y if SPARC64 | |
340 | select SPARSEMEM_VMEMMAP_ENABLE | |
341 | ||
342 | config ARCH_SPARSEMEM_DEFAULT | |
343 | def_bool y if SPARC64 | |
344 | ||
345 | source "mm/Kconfig" | |
346 | ||
347 | config SCHED_SMT | |
348 | bool "SMT (Hyperthreading) scheduler support" | |
349 | depends on SPARC64 && SMP | |
350 | default y | |
351 | help | |
352 | SMT scheduler support improves the CPU scheduler's decision making | |
353 | when dealing with SPARC cpus at a cost of slightly increased overhead | |
354 | in some places. If unsure say N here. | |
355 | ||
356 | config SCHED_MC | |
357 | bool "Multi-core scheduler support" | |
358 | depends on SPARC64 && SMP | |
359 | default y | |
360 | help | |
361 | Multi-core scheduler support improves the CPU scheduler's decision | |
362 | making when dealing with multi-core CPU chips at a cost of slightly | |
363 | increased overhead in some places. If unsure say N here. | |
364 | ||
365 | if SPARC64 | |
366 | source "kernel/Kconfig.preempt" | |
367 | endif | |
368 | ||
369 | config CMDLINE_BOOL | |
370 | bool "Default bootloader kernel arguments" | |
371 | depends on SPARC64 | |
372 | ||
373 | config CMDLINE | |
374 | string "Initial kernel command string" | |
375 | depends on CMDLINE_BOOL | |
376 | default "console=ttyS0,9600 root=/dev/sda1" | |
377 | help | |
378 | Say Y here if you want to be able to pass default arguments to | |
379 | the kernel. This will be overridden by the bootloader, if you | |
380 | use one (such as SILO). This is most useful if you want to boot | |
381 | a kernel from TFTP, and want default options to be available | |
382 | with having them passed on the command line. | |
383 | ||
384 | NOTE: This option WILL override the PROM bootargs setting! | |
385 | ||
386 | config SUN_PM | |
387 | bool | |
388 | default y if SPARC32 | |
1da177e4 LT |
389 | help |
390 | Enable power management and CPU standby features on supported | |
391 | SPARC platforms. | |
392 | ||
4b27e0e1 SR |
393 | config SPARC_LED |
394 | tristate "Sun4m LED driver" | |
26b4c912 | 395 | depends on SPARC32 |
4b27e0e1 SR |
396 | help |
397 | This driver toggles the front-panel LED on sun4m systems | |
398 | in a user-specifiable manner. Its state can be probed | |
399 | by reading /proc/led and its blinking mode can be changed | |
400 | via writes to /proc/led | |
401 | ||
26b4c912 SR |
402 | config SERIAL_CONSOLE |
403 | bool | |
404 | depends on SPARC32 | |
405 | default y | |
406 | ---help--- | |
407 | If you say Y here, it will be possible to use a serial port as the | |
408 | system console (the system console is the device which receives all | |
409 | kernel messages and warnings and which allows logins in single user | |
410 | mode). This could be useful if some terminal or printer is connected | |
411 | to that serial port. | |
412 | ||
413 | Even if you say Y here, the currently visible virtual console | |
414 | (/dev/tty0) will still be used as the system console by default, but | |
415 | you can alter that using a kernel command line option such as | |
416 | "console=ttyS1". (Try "man bootparam" or see the documentation of | |
417 | your boot loader (silo) about how to pass options to the kernel at | |
418 | boot time.) | |
419 | ||
420 | If you don't have a graphics card installed and you say Y here, the | |
421 | kernel will automatically use the first serial line, /dev/ttyS0, as | |
422 | system console. | |
423 | ||
424 | If unsure, say N. | |
4b27e0e1 SR |
425 | |
426 | endmenu | |
427 | ||
428 | menu "Bus options (PCI etc.)" | |
429 | config ISA | |
430 | bool | |
431 | help | |
432 | ISA is found on Espresso only and is not supported currently. | |
433 | ||
434 | config ISAPNP | |
435 | bool | |
436 | help | |
437 | ISAPNP is not supported | |
438 | ||
439 | config EISA | |
440 | bool | |
441 | help | |
442 | EISA is not supported. | |
443 | ||
444 | config MCA | |
445 | bool | |
446 | help | |
447 | MCA is not supported. | |
448 | ||
4b27e0e1 SR |
449 | config SBUS |
450 | bool | |
451 | default y | |
452 | ||
453 | config SBUSCHAR | |
454 | bool | |
455 | default y | |
456 | ||
457 | config SUN_AUXIO | |
458 | bool | |
459 | default y | |
460 | ||
461 | config SUN_IO | |
462 | bool | |
463 | default y | |
464 | ||
26b4c912 SR |
465 | config SUN_LDOMS |
466 | bool "Sun Logical Domains support" | |
467 | depends on SPARC64 | |
468 | help | |
469 | Say Y here is you want to support virtual devices via | |
470 | Logical Domains. | |
471 | ||
1da177e4 LT |
472 | config PCI |
473 | bool "Support for PCI and PS/2 keyboard/mouse" | |
26b4c912 | 474 | select ARCH_SUPPORTS_MSI if SPARC64 |
1da177e4 | 475 | help |
26b4c912 SR |
476 | Find out whether your system includes a PCI bus. PCI is the name of |
477 | a bus system, i.e. the way the CPU talks to the other stuff inside | |
478 | your box. If you say Y here, the kernel will include drivers and | |
479 | infrastructure code to support PCI bus devices. | |
480 | ||
1da177e4 LT |
481 | CONFIG_PCI is needed for all JavaStation's (including MrCoffee), |
482 | CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC. | |
483 | All of these platforms are extremely obscure, so say N if unsure. | |
484 | ||
26b4c912 SR |
485 | config PCI_DOMAINS |
486 | def_bool PCI if SPARC64 | |
487 | ||
36e23590 MW |
488 | config PCI_SYSCALL |
489 | def_bool PCI | |
490 | ||
1da177e4 LT |
491 | source "drivers/pci/Kconfig" |
492 | ||
c6afec5e DM |
493 | source "drivers/pcmcia/Kconfig" |
494 | ||
1da177e4 LT |
495 | config SUN_OPENPROMFS |
496 | tristate "Openprom tree appears in /proc/openprom" | |
497 | help | |
498 | If you say Y, the OpenPROM device tree will be available as a | |
499 | virtual file system, which you can mount to /proc/openprom by "mount | |
500 | -t openpromfs none /proc/openprom". | |
501 | ||
502 | To compile the /proc/openprom support as a module, choose M here: the | |
503 | module will be called openpromfs. | |
504 | ||
505 | Only choose N if you know in advance that you will not need to modify | |
506 | OpenPROM settings on the running system. | |
507 | ||
30aaa808 WLII |
508 | |
509 | endmenu | |
510 | ||
12e271a8 SR |
511 | menu "Executable file formats" |
512 | ||
513 | source "fs/Kconfig.binfmt" | |
514 | ||
26b4c912 SR |
515 | config COMPAT |
516 | bool | |
517 | depends on SPARC64 | |
518 | default y | |
519 | select COMPAT_BINFMT_ELF | |
520 | ||
521 | config SYSVIPC_COMPAT | |
522 | bool | |
523 | depends on COMPAT && SYSVIPC | |
524 | default y | |
525 | ||
12e271a8 SR |
526 | endmenu |
527 | ||
d5950b43 SR |
528 | source "net/Kconfig" |
529 | ||
30aaa808 | 530 | source "drivers/Kconfig" |
1da177e4 | 531 | |
1da177e4 | 532 | source "drivers/sbus/char/Kconfig" |
1da177e4 | 533 | |
1da177e4 LT |
534 | source "fs/Kconfig" |
535 | ||
1da177e4 LT |
536 | source "arch/sparc/Kconfig.debug" |
537 | ||
538 | source "security/Kconfig" | |
539 | ||
540 | source "crypto/Kconfig" | |
541 | ||
542 | source "lib/Kconfig" |