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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 | ||
44 | config 64BIT | |
45 | def_bool y if SPARC64 | |
46 | ||
47 | config GENERIC_TIME | |
48 | bool | |
49 | default y if SPARC64 | |
50 | ||
51 | config GENERIC_CMOS_UPDATE | |
52 | bool | |
53 | default y if SPARC64 | |
54 | ||
55 | config GENERIC_CLOCKEVENTS | |
56 | bool | |
57 | default y if SPARC64 | |
58 | ||
59 | config IOMMU_HELPER | |
60 | bool | |
61 | default y if SPARC64 | |
62 | ||
63 | config QUICKLIST | |
64 | bool | |
65 | default y if SPARC64 | |
66 | ||
67 | config STACKTRACE_SUPPORT | |
68 | bool | |
69 | default y if SPARC64 | |
70 | ||
71 | config LOCKDEP_SUPPORT | |
72 | bool | |
73 | default y if SPARC64 | |
74 | ||
6a5726dd DM |
75 | config HAVE_LATENCYTOP_SUPPORT |
76 | bool | |
77 | default y if SPARC64 | |
78 | ||
26b4c912 SR |
79 | config AUDIT_ARCH |
80 | bool | |
81 | default y if SPARC64 | |
82 | ||
83 | config HAVE_SETUP_PER_CPU_AREA | |
84 | def_bool y if SPARC64 | |
85 | ||
86 | config GENERIC_HARDIRQS_NO__DO_IRQ | |
87 | bool | |
88 | def_bool y if SPARC64 | |
89 | ||
1da177e4 LT |
90 | config MMU |
91 | bool | |
92 | default y | |
93 | ||
1da177e4 LT |
94 | config HIGHMEM |
95 | bool | |
26b4c912 | 96 | default y if SPARC32 |
1da177e4 | 97 | |
5ac6da66 CL |
98 | config ZONE_DMA |
99 | bool | |
26b4c912 | 100 | default y if SPARC32 |
5ac6da66 | 101 | |
1da177e4 LT |
102 | config GENERIC_ISA_DMA |
103 | bool | |
26b4c912 | 104 | default y if SPARC32 |
1da177e4 | 105 | |
15df0f33 DM |
106 | config GENERIC_GPIO |
107 | bool | |
108 | help | |
109 | Generic GPIO API support | |
110 | ||
0785b9dc SR |
111 | config ARCH_NO_VIRT_TO_BUS |
112 | def_bool y | |
113 | ||
97e873e5 SR |
114 | config OF |
115 | def_bool y | |
116 | ||
1da177e4 LT |
117 | source "init/Kconfig" |
118 | ||
dc52ddc0 MH |
119 | source "kernel/Kconfig.freezer" |
120 | ||
26b4c912 | 121 | menu "Processor type and features" |
1da177e4 | 122 | |
1da177e4 LT |
123 | config SMP |
124 | bool "Symmetric multi-processing support (does not work on sun4/sun4c)" | |
1da177e4 LT |
125 | ---help--- |
126 | This enables support for systems with more than one CPU. If you have | |
127 | a system with only one CPU, say N. If you have a system with more | |
128 | than one CPU, say Y. | |
129 | ||
130 | If you say N here, the kernel will run on single and multiprocessor | |
131 | machines, but will use only one CPU of a multiprocessor machine. If | |
132 | you say Y here, the kernel will run on many, but not all, | |
133 | singleprocessor machines. On a singleprocessor machine, the kernel | |
134 | will run faster if you say N here. | |
135 | ||
136 | People using multiprocessor machines who say Y here should also say | |
137 | Y to "Enhanced Real Time Clock Support", below. The "Advanced Power | |
138 | Management" code will be disabled if you say Y here. | |
139 | ||
03502faa AB |
140 | See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO |
141 | available at <http://www.tldp.org/docs.html#howto>. | |
1da177e4 LT |
142 | |
143 | If you don't know what to do here, say N. | |
144 | ||
145 | config NR_CPUS | |
26b4c912 | 146 | int "Maximum number of CPUs" |
1da177e4 | 147 | depends on SMP |
26b4c912 SR |
148 | range 2 32 if SPARC32 |
149 | range 2 1024 if SPARC64 | |
150 | default 32 if SPARC32 | |
151 | default 64 if SPARC64 | |
1da177e4 | 152 | |
26b4c912 | 153 | source kernel/Kconfig.hz |
1da177e4 | 154 | |
1da177e4 LT |
155 | config RWSEM_GENERIC_SPINLOCK |
156 | bool | |
26b4c912 | 157 | default y if SPARC32 |
1da177e4 LT |
158 | |
159 | config RWSEM_XCHGADD_ALGORITHM | |
160 | bool | |
26b4c912 | 161 | default y if SPARC64 |
1da177e4 | 162 | |
d59288b7 AM |
163 | config GENERIC_FIND_NEXT_BIT |
164 | bool | |
165 | default y | |
166 | ||
167 | config GENERIC_HWEIGHT | |
168 | bool | |
26b4c912 | 169 | default y if !ULTRA_HAS_POPULATION_COUNT |
d59288b7 | 170 | |
1da177e4 LT |
171 | config GENERIC_CALIBRATE_DELAY |
172 | bool | |
173 | default y | |
174 | ||
a08b6b79 AV |
175 | config ARCH_MAY_HAVE_PC_FDC |
176 | bool | |
177 | default y | |
178 | ||
f0d1b0b3 DH |
179 | config ARCH_HAS_ILOG2_U32 |
180 | bool | |
181 | default n | |
182 | ||
183 | config ARCH_HAS_ILOG2_U64 | |
184 | bool | |
185 | default n | |
186 | ||
5f81941c MH |
187 | config EMULATED_CMPXCHG |
188 | bool | |
26b4c912 | 189 | default y if SPARC32 |
5f81941c MH |
190 | help |
191 | Sparc32 does not have a CAS instruction like sparc64. cmpxchg() | |
192 | is emulated, and therefore it is not completely atomic. | |
193 | ||
26b4c912 SR |
194 | choice |
195 | prompt "Kernel page size" if SPARC64 | |
196 | default SPARC64_PAGE_SIZE_8KB | |
197 | ||
198 | config SPARC64_PAGE_SIZE_8KB | |
199 | bool "8KB" | |
200 | help | |
201 | This lets you select the page size of the kernel. | |
202 | ||
203 | 8KB and 64KB work quite well, since SPARC ELF sections | |
204 | provide for up to 64KB alignment. | |
205 | ||
206 | If you don't know what to do, choose 8KB. | |
207 | ||
208 | config SPARC64_PAGE_SIZE_64KB | |
209 | bool "64KB" | |
210 | ||
211 | endchoice | |
212 | ||
213 | config SECCOMP | |
214 | bool "Enable seccomp to safely compute untrusted bytecode" | |
215 | depends on SPARC64 && PROC_FS | |
216 | default y | |
217 | help | |
218 | This kernel feature is useful for number crunching applications | |
219 | that may need to compute untrusted bytecode during their | |
220 | execution. By using pipes or other transports made available to | |
221 | the process as file descriptors supporting the read/write | |
222 | syscalls, it's possible to isolate those applications in | |
223 | their own address space using seccomp. Once seccomp is | |
224 | enabled via /proc/<pid>/seccomp, it cannot be disabled | |
225 | and the task is only allowed to execute a few safe syscalls | |
226 | defined by each seccomp mode. | |
227 | ||
228 | If unsure, say Y. Only embedded should say N here. | |
229 | ||
230 | config HOTPLUG_CPU | |
231 | bool "Support for hot-pluggable CPUs" | |
232 | depends on SPARC64 && SMP | |
233 | select HOTPLUG | |
234 | help | |
235 | Say Y here to experiment with turning CPUs off and on. CPUs | |
236 | can be controlled through /sys/devices/system/cpu/cpu#. | |
237 | Say N if you want to disable CPU hotplug. | |
238 | ||
239 | config GENERIC_HARDIRQS | |
240 | bool | |
241 | default y if SPARC64 | |
242 | ||
243 | source "kernel/time/Kconfig" | |
244 | ||
245 | if SPARC64 | |
246 | source "drivers/cpufreq/Kconfig" | |
247 | ||
248 | config US3_FREQ | |
249 | tristate "UltraSPARC-III CPU Frequency driver" | |
250 | depends on CPU_FREQ | |
251 | select CPU_FREQ_TABLE | |
252 | help | |
253 | This adds the CPUFreq driver for UltraSPARC-III processors. | |
254 | ||
255 | For details, take a look at <file:Documentation/cpu-freq>. | |
256 | ||
257 | If in doubt, say N. | |
258 | ||
259 | config US2E_FREQ | |
260 | tristate "UltraSPARC-IIe CPU Frequency driver" | |
261 | depends on CPU_FREQ | |
262 | select CPU_FREQ_TABLE | |
263 | help | |
264 | This adds the CPUFreq driver for UltraSPARC-IIe processors. | |
265 | ||
266 | For details, take a look at <file:Documentation/cpu-freq>. | |
267 | ||
268 | If in doubt, say N. | |
269 | ||
270 | endif | |
271 | ||
272 | config US3_MC | |
273 | tristate "UltraSPARC-III Memory Controller driver" | |
274 | depends on SPARC64 | |
275 | default y | |
276 | help | |
277 | This adds a driver for the UltraSPARC-III memory controller. | |
278 | Loading this driver allows exact mnemonic strings to be | |
279 | printed in the event of a memory error, so that the faulty DIMM | |
280 | on the motherboard can be matched to the error. | |
281 | ||
282 | If in doubt, say Y, as this information can be very useful. | |
283 | ||
284 | # Global things across all Sun machines. | |
285 | config GENERIC_LOCKBREAK | |
1da177e4 LT |
286 | bool |
287 | default y | |
26b4c912 SR |
288 | depends on SPARC64 && SMP && PREEMPT |
289 | ||
290 | choice | |
291 | prompt "SPARC64 Huge TLB Page Size" | |
292 | depends on SPARC64 && HUGETLB_PAGE | |
293 | default HUGETLB_PAGE_SIZE_4MB | |
294 | ||
295 | config HUGETLB_PAGE_SIZE_4MB | |
296 | bool "4MB" | |
297 | ||
298 | config HUGETLB_PAGE_SIZE_512K | |
299 | bool "512K" | |
300 | ||
301 | config HUGETLB_PAGE_SIZE_64K | |
302 | depends on !SPARC64_PAGE_SIZE_64KB | |
303 | bool "64K" | |
304 | ||
305 | endchoice | |
306 | ||
307 | config NUMA | |
308 | bool "NUMA support" | |
309 | depends on SPARC64 && SMP | |
310 | ||
311 | config NODES_SHIFT | |
312 | int | |
313 | default "4" | |
314 | depends on NEED_MULTIPLE_NODES | |
315 | ||
316 | # Some NUMA nodes have memory ranges that span | |
317 | # other nodes. Even though a pfn is valid and | |
318 | # between a node's start and end pfns, it may not | |
319 | # reside on that node. See memmap_init_zone() | |
320 | # for details. | |
321 | config NODES_SPAN_OTHER_NODES | |
322 | def_bool y | |
323 | depends on NEED_MULTIPLE_NODES | |
324 | ||
325 | config ARCH_POPULATES_NODE_MAP | |
326 | def_bool y if SPARC64 | |
327 | ||
328 | config ARCH_SELECT_MEMORY_MODEL | |
329 | def_bool y if SPARC64 | |
330 | ||
331 | config ARCH_SPARSEMEM_ENABLE | |
332 | def_bool y if SPARC64 | |
333 | select SPARSEMEM_VMEMMAP_ENABLE | |
334 | ||
335 | config ARCH_SPARSEMEM_DEFAULT | |
336 | def_bool y if SPARC64 | |
337 | ||
338 | source "mm/Kconfig" | |
339 | ||
340 | config SCHED_SMT | |
341 | bool "SMT (Hyperthreading) scheduler support" | |
342 | depends on SPARC64 && SMP | |
343 | default y | |
344 | help | |
345 | SMT scheduler support improves the CPU scheduler's decision making | |
346 | when dealing with SPARC cpus at a cost of slightly increased overhead | |
347 | in some places. If unsure say N here. | |
348 | ||
349 | config SCHED_MC | |
350 | bool "Multi-core scheduler support" | |
351 | depends on SPARC64 && SMP | |
352 | default y | |
353 | help | |
354 | Multi-core scheduler support improves the CPU scheduler's decision | |
355 | making when dealing with multi-core CPU chips at a cost of slightly | |
356 | increased overhead in some places. If unsure say N here. | |
357 | ||
358 | if SPARC64 | |
359 | source "kernel/Kconfig.preempt" | |
360 | endif | |
361 | ||
362 | config CMDLINE_BOOL | |
363 | bool "Default bootloader kernel arguments" | |
364 | depends on SPARC64 | |
365 | ||
366 | config CMDLINE | |
367 | string "Initial kernel command string" | |
368 | depends on CMDLINE_BOOL | |
369 | default "console=ttyS0,9600 root=/dev/sda1" | |
370 | help | |
371 | Say Y here if you want to be able to pass default arguments to | |
372 | the kernel. This will be overridden by the bootloader, if you | |
373 | use one (such as SILO). This is most useful if you want to boot | |
374 | a kernel from TFTP, and want default options to be available | |
375 | with having them passed on the command line. | |
376 | ||
377 | NOTE: This option WILL override the PROM bootargs setting! | |
378 | ||
379 | config SUN_PM | |
380 | bool | |
381 | default y if SPARC32 | |
1da177e4 LT |
382 | help |
383 | Enable power management and CPU standby features on supported | |
384 | SPARC platforms. | |
385 | ||
4b27e0e1 SR |
386 | config SPARC_LED |
387 | tristate "Sun4m LED driver" | |
26b4c912 | 388 | depends on SPARC32 |
4b27e0e1 SR |
389 | help |
390 | This driver toggles the front-panel LED on sun4m systems | |
391 | in a user-specifiable manner. Its state can be probed | |
392 | by reading /proc/led and its blinking mode can be changed | |
393 | via writes to /proc/led | |
394 | ||
26b4c912 SR |
395 | config SERIAL_CONSOLE |
396 | bool | |
397 | depends on SPARC32 | |
398 | default y | |
399 | ---help--- | |
400 | If you say Y here, it will be possible to use a serial port as the | |
401 | system console (the system console is the device which receives all | |
402 | kernel messages and warnings and which allows logins in single user | |
403 | mode). This could be useful if some terminal or printer is connected | |
404 | to that serial port. | |
405 | ||
406 | Even if you say Y here, the currently visible virtual console | |
407 | (/dev/tty0) will still be used as the system console by default, but | |
408 | you can alter that using a kernel command line option such as | |
409 | "console=ttyS1". (Try "man bootparam" or see the documentation of | |
410 | your boot loader (silo) about how to pass options to the kernel at | |
411 | boot time.) | |
412 | ||
413 | If you don't have a graphics card installed and you say Y here, the | |
414 | kernel will automatically use the first serial line, /dev/ttyS0, as | |
415 | system console. | |
416 | ||
417 | If unsure, say N. | |
4b27e0e1 SR |
418 | |
419 | endmenu | |
420 | ||
421 | menu "Bus options (PCI etc.)" | |
422 | config ISA | |
423 | bool | |
424 | help | |
425 | ISA is found on Espresso only and is not supported currently. | |
426 | ||
427 | config ISAPNP | |
428 | bool | |
429 | help | |
430 | ISAPNP is not supported | |
431 | ||
432 | config EISA | |
433 | bool | |
434 | help | |
435 | EISA is not supported. | |
436 | ||
437 | config MCA | |
438 | bool | |
439 | help | |
440 | MCA is not supported. | |
441 | ||
4b27e0e1 SR |
442 | config SBUS |
443 | bool | |
444 | default y | |
445 | ||
446 | config SBUSCHAR | |
447 | bool | |
448 | default y | |
449 | ||
450 | config SUN_AUXIO | |
451 | bool | |
452 | default y | |
453 | ||
454 | config SUN_IO | |
455 | bool | |
456 | default y | |
457 | ||
26b4c912 SR |
458 | config SUN_LDOMS |
459 | bool "Sun Logical Domains support" | |
460 | depends on SPARC64 | |
461 | help | |
462 | Say Y here is you want to support virtual devices via | |
463 | Logical Domains. | |
464 | ||
1da177e4 LT |
465 | config PCI |
466 | bool "Support for PCI and PS/2 keyboard/mouse" | |
26b4c912 | 467 | select ARCH_SUPPORTS_MSI if SPARC64 |
1da177e4 | 468 | help |
26b4c912 SR |
469 | Find out whether your system includes a PCI bus. PCI is the name of |
470 | a bus system, i.e. the way the CPU talks to the other stuff inside | |
471 | your box. If you say Y here, the kernel will include drivers and | |
472 | infrastructure code to support PCI bus devices. | |
473 | ||
1da177e4 LT |
474 | CONFIG_PCI is needed for all JavaStation's (including MrCoffee), |
475 | CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC. | |
476 | All of these platforms are extremely obscure, so say N if unsure. | |
477 | ||
26b4c912 SR |
478 | config PCI_DOMAINS |
479 | def_bool PCI if SPARC64 | |
480 | ||
36e23590 MW |
481 | config PCI_SYSCALL |
482 | def_bool PCI | |
483 | ||
1da177e4 LT |
484 | source "drivers/pci/Kconfig" |
485 | ||
c6afec5e DM |
486 | source "drivers/pcmcia/Kconfig" |
487 | ||
1da177e4 LT |
488 | config SUN_OPENPROMFS |
489 | tristate "Openprom tree appears in /proc/openprom" | |
490 | help | |
491 | If you say Y, the OpenPROM device tree will be available as a | |
492 | virtual file system, which you can mount to /proc/openprom by "mount | |
493 | -t openpromfs none /proc/openprom". | |
494 | ||
495 | To compile the /proc/openprom support as a module, choose M here: the | |
496 | module will be called openpromfs. | |
497 | ||
498 | Only choose N if you know in advance that you will not need to modify | |
499 | OpenPROM settings on the running system. | |
500 | ||
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" |