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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 | |
7b14c647 | 21 | select OF |
35da3e39 SR |
22 | select HAVE_IDE |
23 | select HAVE_OPROFILE | |
26b4c912 | 24 | select HAVE_ARCH_KGDB if !SMP || SPARC64 |
35da3e39 SR |
25 | select HAVE_ARCH_TRACEHOOK |
26 | select ARCH_WANT_OPTIONAL_GPIOLIB | |
27 | select RTC_CLASS | |
28 | select RTC_DRV_M48T59 | |
cdd6c482 | 29 | select HAVE_PERF_EVENTS |
906010b2 | 30 | select PERF_USE_VMALLOC |
02f7a189 | 31 | select HAVE_DMA_ATTRS |
451d7400 | 32 | select HAVE_DMA_API_DEBUG |
35da3e39 | 33 | |
35da3e39 | 34 | config SPARC32 |
761b6026 | 35 | def_bool !64BIT |
35da3e39 | 36 | |
26b4c912 | 37 | config SPARC64 |
761b6026 | 38 | def_bool 64BIT |
5bc05308 | 39 | select ARCH_SUPPORTS_MSI |
26b4c912 | 40 | select HAVE_FUNCTION_TRACER |
9960e9e8 DM |
41 | select HAVE_FUNCTION_GRAPH_TRACER |
42 | select HAVE_FUNCTION_GRAPH_FP_TEST | |
63b75495 | 43 | select HAVE_FUNCTION_TRACE_MCOUNT_TEST |
26b4c912 SR |
44 | select HAVE_KRETPROBES |
45 | select HAVE_KPROBES | |
95f72d1e | 46 | select HAVE_MEMBLOCK |
67605d68 | 47 | select HAVE_SYSCALL_WRAPPERS |
9be12f9b DM |
48 | select HAVE_DYNAMIC_FTRACE |
49 | select HAVE_FTRACE_MCOUNT_RECORD | |
c658ad1b | 50 | select HAVE_SYSCALL_TRACEPOINTS |
26b4c912 SR |
51 | select USE_GENERIC_SMP_HELPERS if SMP |
52 | select RTC_DRV_CMOS | |
53 | select RTC_DRV_BQ4802 | |
54 | select RTC_DRV_SUN4V | |
55 | select RTC_DRV_STARFIRE | |
cdd6c482 | 56 | select HAVE_PERF_EVENTS |
906010b2 | 57 | select PERF_USE_VMALLOC |
26b4c912 | 58 | |
5e538790 SR |
59 | config ARCH_DEFCONFIG |
60 | string | |
61 | default "arch/sparc/configs/sparc32_defconfig" if SPARC32 | |
62 | default "arch/sparc/configs/sparc64_defconfig" if SPARC64 | |
63 | ||
fe6875ec SR |
64 | # CONFIG_BITS can be used at source level to get 32/64 bits |
65 | config BITS | |
66 | int | |
67 | default 32 if SPARC32 | |
68 | default 64 if SPARC64 | |
5e538790 | 69 | |
0299b137 | 70 | config ARCH_USES_GETTIMEOFFSET |
26b4c912 | 71 | bool |
0299b137 | 72 | default y if SPARC32 |
26b4c912 SR |
73 | |
74 | config GENERIC_CMOS_UPDATE | |
75 | bool | |
f5c9c9be | 76 | default y |
26b4c912 SR |
77 | |
78 | config GENERIC_CLOCKEVENTS | |
79 | bool | |
80 | default y if SPARC64 | |
81 | ||
82 | config IOMMU_HELPER | |
83 | bool | |
84 | default y if SPARC64 | |
85 | ||
86 | config QUICKLIST | |
87 | bool | |
88 | default y if SPARC64 | |
89 | ||
90 | config STACKTRACE_SUPPORT | |
91 | bool | |
92 | default y if SPARC64 | |
93 | ||
94 | config LOCKDEP_SUPPORT | |
95 | bool | |
96 | default y if SPARC64 | |
97 | ||
6a5726dd DM |
98 | config HAVE_LATENCYTOP_SUPPORT |
99 | bool | |
100 | default y if SPARC64 | |
101 | ||
26b4c912 SR |
102 | config AUDIT_ARCH |
103 | bool | |
7e7e93a2 | 104 | default y |
26b4c912 SR |
105 | |
106 | config HAVE_SETUP_PER_CPU_AREA | |
107 | def_bool y if SPARC64 | |
108 | ||
bcb2107f | 109 | config NEED_PER_CPU_EMBED_FIRST_CHUNK |
4fd78a5f DM |
110 | def_bool y if SPARC64 |
111 | ||
a70c6913 TH |
112 | config NEED_PER_CPU_PAGE_FIRST_CHUNK |
113 | def_bool y if SPARC64 | |
114 | ||
26b4c912 SR |
115 | config GENERIC_HARDIRQS_NO__DO_IRQ |
116 | bool | |
117 | def_bool y if SPARC64 | |
118 | ||
1da177e4 LT |
119 | config MMU |
120 | bool | |
121 | default y | |
122 | ||
1da177e4 LT |
123 | config HIGHMEM |
124 | bool | |
26b4c912 | 125 | default y if SPARC32 |
1da177e4 | 126 | |
5ac6da66 CL |
127 | config ZONE_DMA |
128 | bool | |
26b4c912 | 129 | default y if SPARC32 |
5ac6da66 | 130 | |
d15b51be FT |
131 | config NEED_DMA_MAP_STATE |
132 | def_bool y | |
133 | ||
18e98307 FT |
134 | config NEED_SG_DMA_LENGTH |
135 | def_bool y | |
136 | ||
1da177e4 LT |
137 | config GENERIC_ISA_DMA |
138 | bool | |
26b4c912 | 139 | default y if SPARC32 |
1da177e4 | 140 | |
15df0f33 DM |
141 | config GENERIC_GPIO |
142 | bool | |
143 | help | |
144 | Generic GPIO API support | |
145 | ||
0785b9dc SR |
146 | config ARCH_NO_VIRT_TO_BUS |
147 | def_bool y | |
148 | ||
6a11f75b AM |
149 | config ARCH_SUPPORTS_DEBUG_PAGEALLOC |
150 | def_bool y if SPARC64 | |
151 | ||
1da177e4 LT |
152 | source "init/Kconfig" |
153 | ||
dc52ddc0 MH |
154 | source "kernel/Kconfig.freezer" |
155 | ||
26b4c912 | 156 | menu "Processor type and features" |
1da177e4 | 157 | |
1da177e4 LT |
158 | config SMP |
159 | bool "Symmetric multi-processing support (does not work on sun4/sun4c)" | |
1da177e4 LT |
160 | ---help--- |
161 | This enables support for systems with more than one CPU. If you have | |
162 | a system with only one CPU, say N. If you have a system with more | |
163 | than one CPU, say Y. | |
164 | ||
165 | If you say N here, the kernel will run on single and multiprocessor | |
166 | machines, but will use only one CPU of a multiprocessor machine. If | |
167 | you say Y here, the kernel will run on many, but not all, | |
168 | singleprocessor machines. On a singleprocessor machine, the kernel | |
169 | will run faster if you say N here. | |
170 | ||
171 | People using multiprocessor machines who say Y here should also say | |
172 | Y to "Enhanced Real Time Clock Support", below. The "Advanced Power | |
173 | Management" code will be disabled if you say Y here. | |
174 | ||
03502faa AB |
175 | See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO |
176 | available at <http://www.tldp.org/docs.html#howto>. | |
1da177e4 LT |
177 | |
178 | If you don't know what to do here, say N. | |
179 | ||
180 | config NR_CPUS | |
26b4c912 | 181 | int "Maximum number of CPUs" |
1da177e4 | 182 | depends on SMP |
26b4c912 SR |
183 | range 2 32 if SPARC32 |
184 | range 2 1024 if SPARC64 | |
185 | default 32 if SPARC32 | |
186 | default 64 if SPARC64 | |
1da177e4 | 187 | |
26b4c912 | 188 | source kernel/Kconfig.hz |
1da177e4 | 189 | |
1da177e4 LT |
190 | config RWSEM_GENERIC_SPINLOCK |
191 | bool | |
26b4c912 | 192 | default y if SPARC32 |
1da177e4 LT |
193 | |
194 | config RWSEM_XCHGADD_ALGORITHM | |
195 | bool | |
26b4c912 | 196 | default y if SPARC64 |
1da177e4 | 197 | |
d59288b7 AM |
198 | config GENERIC_FIND_NEXT_BIT |
199 | bool | |
200 | default y | |
201 | ||
202 | config GENERIC_HWEIGHT | |
203 | bool | |
26b4c912 | 204 | default y if !ULTRA_HAS_POPULATION_COUNT |
d59288b7 | 205 | |
1da177e4 LT |
206 | config GENERIC_CALIBRATE_DELAY |
207 | bool | |
208 | default y | |
209 | ||
a08b6b79 AV |
210 | config ARCH_MAY_HAVE_PC_FDC |
211 | bool | |
212 | default y | |
213 | ||
5f81941c MH |
214 | config EMULATED_CMPXCHG |
215 | bool | |
26b4c912 | 216 | default y if SPARC32 |
5f81941c MH |
217 | help |
218 | Sparc32 does not have a CAS instruction like sparc64. cmpxchg() | |
219 | is emulated, and therefore it is not completely atomic. | |
220 | ||
d670bd4f SR |
221 | # Makefile helpers |
222 | config SPARC32_SMP | |
223 | bool | |
224 | default y | |
225 | depends on SPARC32 && SMP | |
226 | ||
227 | config SPARC64_SMP | |
228 | bool | |
229 | default y | |
230 | depends on SPARC64 && SMP | |
231 | ||
c57ec52f DM |
232 | config EARLYFB |
233 | bool "Support for early boot text console" | |
234 | default y | |
235 | depends on SPARC64 | |
236 | help | |
237 | Say Y here to enable a faster early framebuffer boot console. | |
238 | ||
26b4c912 SR |
239 | choice |
240 | prompt "Kernel page size" if SPARC64 | |
241 | default SPARC64_PAGE_SIZE_8KB | |
242 | ||
243 | config SPARC64_PAGE_SIZE_8KB | |
244 | bool "8KB" | |
245 | help | |
246 | This lets you select the page size of the kernel. | |
247 | ||
248 | 8KB and 64KB work quite well, since SPARC ELF sections | |
249 | provide for up to 64KB alignment. | |
250 | ||
251 | If you don't know what to do, choose 8KB. | |
252 | ||
253 | config SPARC64_PAGE_SIZE_64KB | |
254 | bool "64KB" | |
255 | ||
256 | endchoice | |
257 | ||
258 | config SECCOMP | |
259 | bool "Enable seccomp to safely compute untrusted bytecode" | |
260 | depends on SPARC64 && PROC_FS | |
261 | default y | |
262 | help | |
263 | This kernel feature is useful for number crunching applications | |
264 | that may need to compute untrusted bytecode during their | |
265 | execution. By using pipes or other transports made available to | |
266 | the process as file descriptors supporting the read/write | |
267 | syscalls, it's possible to isolate those applications in | |
268 | their own address space using seccomp. Once seccomp is | |
269 | enabled via /proc/<pid>/seccomp, it cannot be disabled | |
270 | and the task is only allowed to execute a few safe syscalls | |
271 | defined by each seccomp mode. | |
272 | ||
273 | If unsure, say Y. Only embedded should say N here. | |
274 | ||
275 | config HOTPLUG_CPU | |
276 | bool "Support for hot-pluggable CPUs" | |
277 | depends on SPARC64 && SMP | |
278 | select HOTPLUG | |
279 | help | |
280 | Say Y here to experiment with turning CPUs off and on. CPUs | |
281 | can be controlled through /sys/devices/system/cpu/cpu#. | |
282 | Say N if you want to disable CPU hotplug. | |
283 | ||
284 | config GENERIC_HARDIRQS | |
285 | bool | |
286 | default y if SPARC64 | |
287 | ||
288 | source "kernel/time/Kconfig" | |
289 | ||
290 | if SPARC64 | |
291 | source "drivers/cpufreq/Kconfig" | |
292 | ||
293 | config US3_FREQ | |
294 | tristate "UltraSPARC-III CPU Frequency driver" | |
295 | depends on CPU_FREQ | |
296 | select CPU_FREQ_TABLE | |
297 | help | |
298 | This adds the CPUFreq driver for UltraSPARC-III processors. | |
299 | ||
300 | For details, take a look at <file:Documentation/cpu-freq>. | |
301 | ||
302 | If in doubt, say N. | |
303 | ||
304 | config US2E_FREQ | |
305 | tristate "UltraSPARC-IIe CPU Frequency driver" | |
306 | depends on CPU_FREQ | |
307 | select CPU_FREQ_TABLE | |
308 | help | |
309 | This adds the CPUFreq driver for UltraSPARC-IIe processors. | |
310 | ||
311 | For details, take a look at <file:Documentation/cpu-freq>. | |
312 | ||
313 | If in doubt, say N. | |
314 | ||
315 | endif | |
316 | ||
317 | config US3_MC | |
318 | tristate "UltraSPARC-III Memory Controller driver" | |
319 | depends on SPARC64 | |
320 | default y | |
321 | help | |
322 | This adds a driver for the UltraSPARC-III memory controller. | |
323 | Loading this driver allows exact mnemonic strings to be | |
324 | printed in the event of a memory error, so that the faulty DIMM | |
325 | on the motherboard can be matched to the error. | |
326 | ||
327 | If in doubt, say Y, as this information can be very useful. | |
328 | ||
329 | # Global things across all Sun machines. | |
330 | config GENERIC_LOCKBREAK | |
1da177e4 LT |
331 | bool |
332 | default y | |
26b4c912 SR |
333 | depends on SPARC64 && SMP && PREEMPT |
334 | ||
335 | choice | |
336 | prompt "SPARC64 Huge TLB Page Size" | |
337 | depends on SPARC64 && HUGETLB_PAGE | |
338 | default HUGETLB_PAGE_SIZE_4MB | |
339 | ||
340 | config HUGETLB_PAGE_SIZE_4MB | |
341 | bool "4MB" | |
342 | ||
343 | config HUGETLB_PAGE_SIZE_512K | |
344 | bool "512K" | |
345 | ||
346 | config HUGETLB_PAGE_SIZE_64K | |
347 | depends on !SPARC64_PAGE_SIZE_64KB | |
348 | bool "64K" | |
349 | ||
350 | endchoice | |
351 | ||
352 | config NUMA | |
353 | bool "NUMA support" | |
354 | depends on SPARC64 && SMP | |
355 | ||
356 | config NODES_SHIFT | |
357 | int | |
358 | default "4" | |
359 | depends on NEED_MULTIPLE_NODES | |
360 | ||
361 | # Some NUMA nodes have memory ranges that span | |
362 | # other nodes. Even though a pfn is valid and | |
363 | # between a node's start and end pfns, it may not | |
364 | # reside on that node. See memmap_init_zone() | |
365 | # for details. | |
366 | config NODES_SPAN_OTHER_NODES | |
367 | def_bool y | |
368 | depends on NEED_MULTIPLE_NODES | |
369 | ||
370 | config ARCH_POPULATES_NODE_MAP | |
371 | def_bool y if SPARC64 | |
372 | ||
373 | config ARCH_SELECT_MEMORY_MODEL | |
374 | def_bool y if SPARC64 | |
375 | ||
376 | config ARCH_SPARSEMEM_ENABLE | |
377 | def_bool y if SPARC64 | |
378 | select SPARSEMEM_VMEMMAP_ENABLE | |
379 | ||
380 | config ARCH_SPARSEMEM_DEFAULT | |
381 | def_bool y if SPARC64 | |
382 | ||
383 | source "mm/Kconfig" | |
384 | ||
385 | config SCHED_SMT | |
386 | bool "SMT (Hyperthreading) scheduler support" | |
387 | depends on SPARC64 && SMP | |
388 | default y | |
389 | help | |
390 | SMT scheduler support improves the CPU scheduler's decision making | |
391 | when dealing with SPARC cpus at a cost of slightly increased overhead | |
392 | in some places. If unsure say N here. | |
393 | ||
394 | config SCHED_MC | |
395 | bool "Multi-core scheduler support" | |
396 | depends on SPARC64 && SMP | |
397 | default y | |
398 | help | |
399 | Multi-core scheduler support improves the CPU scheduler's decision | |
400 | making when dealing with multi-core CPU chips at a cost of slightly | |
401 | increased overhead in some places. If unsure say N here. | |
402 | ||
403 | if SPARC64 | |
404 | source "kernel/Kconfig.preempt" | |
405 | endif | |
406 | ||
407 | config CMDLINE_BOOL | |
408 | bool "Default bootloader kernel arguments" | |
409 | depends on SPARC64 | |
410 | ||
411 | config CMDLINE | |
412 | string "Initial kernel command string" | |
413 | depends on CMDLINE_BOOL | |
414 | default "console=ttyS0,9600 root=/dev/sda1" | |
415 | help | |
416 | Say Y here if you want to be able to pass default arguments to | |
417 | the kernel. This will be overridden by the bootloader, if you | |
418 | use one (such as SILO). This is most useful if you want to boot | |
419 | a kernel from TFTP, and want default options to be available | |
420 | with having them passed on the command line. | |
421 | ||
422 | NOTE: This option WILL override the PROM bootargs setting! | |
423 | ||
424 | config SUN_PM | |
425 | bool | |
426 | default y if SPARC32 | |
1da177e4 LT |
427 | help |
428 | Enable power management and CPU standby features on supported | |
429 | SPARC platforms. | |
430 | ||
4b27e0e1 SR |
431 | config SPARC_LED |
432 | tristate "Sun4m LED driver" | |
26b4c912 | 433 | depends on SPARC32 |
4b27e0e1 SR |
434 | help |
435 | This driver toggles the front-panel LED on sun4m systems | |
436 | in a user-specifiable manner. Its state can be probed | |
437 | by reading /proc/led and its blinking mode can be changed | |
438 | via writes to /proc/led | |
439 | ||
26b4c912 SR |
440 | config SERIAL_CONSOLE |
441 | bool | |
442 | depends on SPARC32 | |
443 | default y | |
444 | ---help--- | |
445 | If you say Y here, it will be possible to use a serial port as the | |
446 | system console (the system console is the device which receives all | |
447 | kernel messages and warnings and which allows logins in single user | |
448 | mode). This could be useful if some terminal or printer is connected | |
449 | to that serial port. | |
450 | ||
451 | Even if you say Y here, the currently visible virtual console | |
452 | (/dev/tty0) will still be used as the system console by default, but | |
453 | you can alter that using a kernel command line option such as | |
454 | "console=ttyS1". (Try "man bootparam" or see the documentation of | |
455 | your boot loader (silo) about how to pass options to the kernel at | |
456 | boot time.) | |
457 | ||
458 | If you don't have a graphics card installed and you say Y here, the | |
459 | kernel will automatically use the first serial line, /dev/ttyS0, as | |
460 | system console. | |
461 | ||
462 | If unsure, say N. | |
4b27e0e1 | 463 | |
5213a780 KE |
464 | config SPARC_LEON |
465 | bool "Sparc Leon processor family" | |
466 | depends on SPARC32 | |
467 | ---help--- | |
468 | If you say Y here if you are running on a SPARC-LEON processor. | |
469 | The LEON processor is a synthesizable VHDL model of the | |
470 | SPARC-v8 standard. LEON is part of the GRLIB collection of | |
471 | IP cores that are distributed under GPL. GRLIB can be downloaded | |
472 | from www.gaisler.com. You can download a sparc-linux cross-compilation | |
473 | toolchain at www.gaisler.com. | |
474 | ||
4b27e0e1 SR |
475 | endmenu |
476 | ||
477 | menu "Bus options (PCI etc.)" | |
4b27e0e1 SR |
478 | config SBUS |
479 | bool | |
480 | default y | |
481 | ||
482 | config SBUSCHAR | |
483 | bool | |
484 | default y | |
485 | ||
26b4c912 SR |
486 | config SUN_LDOMS |
487 | bool "Sun Logical Domains support" | |
488 | depends on SPARC64 | |
489 | help | |
490 | Say Y here is you want to support virtual devices via | |
491 | Logical Domains. | |
492 | ||
1da177e4 LT |
493 | config PCI |
494 | bool "Support for PCI and PS/2 keyboard/mouse" | |
495 | help | |
26b4c912 SR |
496 | Find out whether your system includes a PCI bus. PCI is the name of |
497 | a bus system, i.e. the way the CPU talks to the other stuff inside | |
498 | your box. If you say Y here, the kernel will include drivers and | |
499 | infrastructure code to support PCI bus devices. | |
500 | ||
1da177e4 LT |
501 | CONFIG_PCI is needed for all JavaStation's (including MrCoffee), |
502 | CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC. | |
503 | All of these platforms are extremely obscure, so say N if unsure. | |
504 | ||
26b4c912 SR |
505 | config PCI_DOMAINS |
506 | def_bool PCI if SPARC64 | |
507 | ||
36e23590 MW |
508 | config PCI_SYSCALL |
509 | def_bool PCI | |
510 | ||
1da177e4 LT |
511 | source "drivers/pci/Kconfig" |
512 | ||
c6afec5e DM |
513 | source "drivers/pcmcia/Kconfig" |
514 | ||
1da177e4 LT |
515 | config SUN_OPENPROMFS |
516 | tristate "Openprom tree appears in /proc/openprom" | |
517 | help | |
518 | If you say Y, the OpenPROM device tree will be available as a | |
519 | virtual file system, which you can mount to /proc/openprom by "mount | |
520 | -t openpromfs none /proc/openprom". | |
521 | ||
522 | To compile the /proc/openprom support as a module, choose M here: the | |
523 | module will be called openpromfs. | |
524 | ||
525 | Only choose N if you know in advance that you will not need to modify | |
526 | OpenPROM settings on the running system. | |
527 | ||
d670bd4f SR |
528 | # Makefile helpers |
529 | config SPARC32_PCI | |
530 | bool | |
531 | default y | |
532 | depends on SPARC32 && PCI | |
533 | ||
534 | config SPARC64_PCI | |
535 | bool | |
536 | default y | |
537 | depends on SPARC64 && PCI | |
30aaa808 WLII |
538 | |
539 | endmenu | |
540 | ||
12e271a8 SR |
541 | menu "Executable file formats" |
542 | ||
543 | source "fs/Kconfig.binfmt" | |
544 | ||
26b4c912 SR |
545 | config COMPAT |
546 | bool | |
547 | depends on SPARC64 | |
548 | default y | |
549 | select COMPAT_BINFMT_ELF | |
550 | ||
551 | config SYSVIPC_COMPAT | |
552 | bool | |
553 | depends on COMPAT && SYSVIPC | |
554 | default y | |
555 | ||
12e271a8 SR |
556 | endmenu |
557 | ||
d5950b43 SR |
558 | source "net/Kconfig" |
559 | ||
30aaa808 | 560 | source "drivers/Kconfig" |
1da177e4 | 561 | |
1da177e4 | 562 | source "drivers/sbus/char/Kconfig" |
1da177e4 | 563 | |
1da177e4 LT |
564 | source "fs/Kconfig" |
565 | ||
1da177e4 LT |
566 | source "arch/sparc/Kconfig.debug" |
567 | ||
568 | source "security/Kconfig" | |
569 | ||
570 | source "crypto/Kconfig" | |
571 | ||
572 | source "lib/Kconfig" |