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 | |
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 |
dff9d3c2 | 33 | select HAVE_ARCH_JUMP_LABEL if !CC_OPTIMIZE_FOR_SIZE |
35da3e39 | 34 | |
35da3e39 | 35 | config SPARC32 |
761b6026 | 36 | def_bool !64BIT |
35da3e39 | 37 | |
26b4c912 | 38 | config SPARC64 |
761b6026 | 39 | def_bool 64BIT |
5bc05308 | 40 | select ARCH_SUPPORTS_MSI |
26b4c912 | 41 | select HAVE_FUNCTION_TRACER |
9960e9e8 DM |
42 | select HAVE_FUNCTION_GRAPH_TRACER |
43 | select HAVE_FUNCTION_GRAPH_FP_TEST | |
63b75495 | 44 | select HAVE_FUNCTION_TRACE_MCOUNT_TEST |
26b4c912 SR |
45 | select HAVE_KRETPROBES |
46 | select HAVE_KPROBES | |
95f72d1e | 47 | select HAVE_MEMBLOCK |
67605d68 | 48 | select HAVE_SYSCALL_WRAPPERS |
9be12f9b DM |
49 | select HAVE_DYNAMIC_FTRACE |
50 | select HAVE_FTRACE_MCOUNT_RECORD | |
c658ad1b | 51 | select HAVE_SYSCALL_TRACEPOINTS |
26b4c912 SR |
52 | select USE_GENERIC_SMP_HELPERS if SMP |
53 | select RTC_DRV_CMOS | |
54 | select RTC_DRV_BQ4802 | |
55 | select RTC_DRV_SUN4V | |
56 | select RTC_DRV_STARFIRE | |
cdd6c482 | 57 | select HAVE_PERF_EVENTS |
906010b2 | 58 | select PERF_USE_VMALLOC |
26b4c912 | 59 | |
5e538790 SR |
60 | config ARCH_DEFCONFIG |
61 | string | |
62 | default "arch/sparc/configs/sparc32_defconfig" if SPARC32 | |
63 | default "arch/sparc/configs/sparc64_defconfig" if SPARC64 | |
64 | ||
fe6875ec SR |
65 | # CONFIG_BITS can be used at source level to get 32/64 bits |
66 | config BITS | |
67 | int | |
68 | default 32 if SPARC32 | |
69 | default 64 if SPARC64 | |
5e538790 | 70 | |
0299b137 | 71 | config ARCH_USES_GETTIMEOFFSET |
26b4c912 | 72 | bool |
0299b137 | 73 | default y if SPARC32 |
26b4c912 SR |
74 | |
75 | config GENERIC_CMOS_UPDATE | |
76 | bool | |
f5c9c9be | 77 | default y |
26b4c912 SR |
78 | |
79 | config GENERIC_CLOCKEVENTS | |
80 | bool | |
81 | default y if SPARC64 | |
82 | ||
83 | config IOMMU_HELPER | |
84 | bool | |
85 | default y if SPARC64 | |
86 | ||
87 | config QUICKLIST | |
88 | bool | |
89 | default y if SPARC64 | |
90 | ||
91 | config STACKTRACE_SUPPORT | |
92 | bool | |
93 | default y if SPARC64 | |
94 | ||
95 | config LOCKDEP_SUPPORT | |
96 | bool | |
97 | default y if SPARC64 | |
98 | ||
6a5726dd DM |
99 | config HAVE_LATENCYTOP_SUPPORT |
100 | bool | |
101 | default y if SPARC64 | |
102 | ||
26b4c912 SR |
103 | config AUDIT_ARCH |
104 | bool | |
7e7e93a2 | 105 | default y |
26b4c912 SR |
106 | |
107 | config HAVE_SETUP_PER_CPU_AREA | |
108 | def_bool y if SPARC64 | |
109 | ||
bcb2107f | 110 | config NEED_PER_CPU_EMBED_FIRST_CHUNK |
4fd78a5f DM |
111 | def_bool y if SPARC64 |
112 | ||
a70c6913 TH |
113 | config NEED_PER_CPU_PAGE_FIRST_CHUNK |
114 | def_bool y if SPARC64 | |
115 | ||
26b4c912 SR |
116 | config GENERIC_HARDIRQS_NO__DO_IRQ |
117 | bool | |
118 | def_bool y if SPARC64 | |
119 | ||
1da177e4 LT |
120 | config MMU |
121 | bool | |
122 | default y | |
123 | ||
1da177e4 LT |
124 | config HIGHMEM |
125 | bool | |
26b4c912 | 126 | default y if SPARC32 |
1da177e4 | 127 | |
5ac6da66 CL |
128 | config ZONE_DMA |
129 | bool | |
26b4c912 | 130 | default y if SPARC32 |
5ac6da66 | 131 | |
d15b51be FT |
132 | config NEED_DMA_MAP_STATE |
133 | def_bool y | |
134 | ||
18e98307 FT |
135 | config NEED_SG_DMA_LENGTH |
136 | def_bool y | |
137 | ||
1da177e4 LT |
138 | config GENERIC_ISA_DMA |
139 | bool | |
26b4c912 | 140 | default y if SPARC32 |
1da177e4 | 141 | |
15df0f33 DM |
142 | config GENERIC_GPIO |
143 | bool | |
144 | help | |
145 | Generic GPIO API support | |
146 | ||
0785b9dc SR |
147 | config ARCH_NO_VIRT_TO_BUS |
148 | def_bool y | |
149 | ||
6a11f75b AM |
150 | config ARCH_SUPPORTS_DEBUG_PAGEALLOC |
151 | def_bool y if SPARC64 | |
152 | ||
1da177e4 LT |
153 | source "init/Kconfig" |
154 | ||
dc52ddc0 MH |
155 | source "kernel/Kconfig.freezer" |
156 | ||
26b4c912 | 157 | menu "Processor type and features" |
1da177e4 | 158 | |
1da177e4 LT |
159 | config SMP |
160 | bool "Symmetric multi-processing support (does not work on sun4/sun4c)" | |
1da177e4 LT |
161 | ---help--- |
162 | This enables support for systems with more than one CPU. If you have | |
163 | a system with only one CPU, say N. If you have a system with more | |
164 | than one CPU, say Y. | |
165 | ||
166 | If you say N here, the kernel will run on single and multiprocessor | |
167 | machines, but will use only one CPU of a multiprocessor machine. If | |
168 | you say Y here, the kernel will run on many, but not all, | |
169 | singleprocessor machines. On a singleprocessor machine, the kernel | |
170 | will run faster if you say N here. | |
171 | ||
172 | People using multiprocessor machines who say Y here should also say | |
173 | Y to "Enhanced Real Time Clock Support", below. The "Advanced Power | |
174 | Management" code will be disabled if you say Y here. | |
175 | ||
03502faa AB |
176 | See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO |
177 | available at <http://www.tldp.org/docs.html#howto>. | |
1da177e4 LT |
178 | |
179 | If you don't know what to do here, say N. | |
180 | ||
181 | config NR_CPUS | |
26b4c912 | 182 | int "Maximum number of CPUs" |
1da177e4 | 183 | depends on SMP |
26b4c912 SR |
184 | range 2 32 if SPARC32 |
185 | range 2 1024 if SPARC64 | |
186 | default 32 if SPARC32 | |
187 | default 64 if SPARC64 | |
1da177e4 | 188 | |
26b4c912 | 189 | source kernel/Kconfig.hz |
1da177e4 | 190 | |
1da177e4 LT |
191 | config RWSEM_GENERIC_SPINLOCK |
192 | bool | |
26b4c912 | 193 | default y if SPARC32 |
1da177e4 LT |
194 | |
195 | config RWSEM_XCHGADD_ALGORITHM | |
196 | bool | |
26b4c912 | 197 | default y if SPARC64 |
1da177e4 | 198 | |
d59288b7 AM |
199 | config GENERIC_FIND_NEXT_BIT |
200 | bool | |
201 | default y | |
202 | ||
203 | config GENERIC_HWEIGHT | |
204 | bool | |
26b4c912 | 205 | default y if !ULTRA_HAS_POPULATION_COUNT |
d59288b7 | 206 | |
1da177e4 LT |
207 | config GENERIC_CALIBRATE_DELAY |
208 | bool | |
209 | default y | |
210 | ||
a08b6b79 Z |
211 | config ARCH_MAY_HAVE_PC_FDC |
212 | bool | |
213 | default y | |
214 | ||
5f81941c MH |
215 | config EMULATED_CMPXCHG |
216 | bool | |
26b4c912 | 217 | default y if SPARC32 |
5f81941c MH |
218 | help |
219 | Sparc32 does not have a CAS instruction like sparc64. cmpxchg() | |
220 | is emulated, and therefore it is not completely atomic. | |
221 | ||
d670bd4f SR |
222 | # Makefile helpers |
223 | config SPARC32_SMP | |
224 | bool | |
225 | default y | |
226 | depends on SPARC32 && SMP | |
227 | ||
228 | config SPARC64_SMP | |
229 | bool | |
230 | default y | |
231 | depends on SPARC64 && SMP | |
232 | ||
c57ec52f DM |
233 | config EARLYFB |
234 | bool "Support for early boot text console" | |
235 | default y | |
236 | depends on SPARC64 | |
237 | help | |
238 | Say Y here to enable a faster early framebuffer boot console. | |
239 | ||
26b4c912 SR |
240 | choice |
241 | prompt "Kernel page size" if SPARC64 | |
242 | default SPARC64_PAGE_SIZE_8KB | |
243 | ||
244 | config SPARC64_PAGE_SIZE_8KB | |
245 | bool "8KB" | |
246 | help | |
247 | This lets you select the page size of the kernel. | |
248 | ||
249 | 8KB and 64KB work quite well, since SPARC ELF sections | |
250 | provide for up to 64KB alignment. | |
251 | ||
252 | If you don't know what to do, choose 8KB. | |
253 | ||
254 | config SPARC64_PAGE_SIZE_64KB | |
255 | bool "64KB" | |
256 | ||
257 | endchoice | |
258 | ||
259 | config SECCOMP | |
260 | bool "Enable seccomp to safely compute untrusted bytecode" | |
261 | depends on SPARC64 && PROC_FS | |
262 | default y | |
263 | help | |
264 | This kernel feature is useful for number crunching applications | |
265 | that may need to compute untrusted bytecode during their | |
266 | execution. By using pipes or other transports made available to | |
267 | the process as file descriptors supporting the read/write | |
268 | syscalls, it's possible to isolate those applications in | |
269 | their own address space using seccomp. Once seccomp is | |
270 | enabled via /proc/<pid>/seccomp, it cannot be disabled | |
271 | and the task is only allowed to execute a few safe syscalls | |
272 | defined by each seccomp mode. | |
273 | ||
274 | If unsure, say Y. Only embedded should say N here. | |
275 | ||
276 | config HOTPLUG_CPU | |
277 | bool "Support for hot-pluggable CPUs" | |
278 | depends on SPARC64 && SMP | |
279 | select HOTPLUG | |
280 | help | |
281 | Say Y here to experiment with turning CPUs off and on. CPUs | |
282 | can be controlled through /sys/devices/system/cpu/cpu#. | |
283 | Say N if you want to disable CPU hotplug. | |
284 | ||
285 | config GENERIC_HARDIRQS | |
286 | bool | |
287 | default y if SPARC64 | |
288 | ||
289 | source "kernel/time/Kconfig" | |
290 | ||
291 | if SPARC64 | |
292 | source "drivers/cpufreq/Kconfig" | |
293 | ||
294 | config US3_FREQ | |
295 | tristate "UltraSPARC-III CPU Frequency driver" | |
296 | depends on CPU_FREQ | |
297 | select CPU_FREQ_TABLE | |
298 | help | |
299 | This adds the CPUFreq driver for UltraSPARC-III processors. | |
300 | ||
301 | For details, take a look at <file:Documentation/cpu-freq>. | |
302 | ||
303 | If in doubt, say N. | |
304 | ||
305 | config US2E_FREQ | |
306 | tristate "UltraSPARC-IIe CPU Frequency driver" | |
307 | depends on CPU_FREQ | |
308 | select CPU_FREQ_TABLE | |
309 | help | |
310 | This adds the CPUFreq driver for UltraSPARC-IIe processors. | |
311 | ||
312 | For details, take a look at <file:Documentation/cpu-freq>. | |
313 | ||
314 | If in doubt, say N. | |
315 | ||
316 | endif | |
317 | ||
318 | config US3_MC | |
319 | tristate "UltraSPARC-III Memory Controller driver" | |
320 | depends on SPARC64 | |
321 | default y | |
322 | help | |
323 | This adds a driver for the UltraSPARC-III memory controller. | |
324 | Loading this driver allows exact mnemonic strings to be | |
325 | printed in the event of a memory error, so that the faulty DIMM | |
326 | on the motherboard can be matched to the error. | |
327 | ||
328 | If in doubt, say Y, as this information can be very useful. | |
329 | ||
330 | # Global things across all Sun machines. | |
331 | config GENERIC_LOCKBREAK | |
1da177e4 LT |
332 | bool |
333 | default y | |
26b4c912 SR |
334 | depends on SPARC64 && SMP && PREEMPT |
335 | ||
336 | choice | |
337 | prompt "SPARC64 Huge TLB Page Size" | |
338 | depends on SPARC64 && HUGETLB_PAGE | |
339 | default HUGETLB_PAGE_SIZE_4MB | |
340 | ||
341 | config HUGETLB_PAGE_SIZE_4MB | |
342 | bool "4MB" | |
343 | ||
344 | config HUGETLB_PAGE_SIZE_512K | |
345 | bool "512K" | |
346 | ||
347 | config HUGETLB_PAGE_SIZE_64K | |
348 | depends on !SPARC64_PAGE_SIZE_64KB | |
349 | bool "64K" | |
350 | ||
351 | endchoice | |
352 | ||
353 | config NUMA | |
354 | bool "NUMA support" | |
355 | depends on SPARC64 && SMP | |
356 | ||
357 | config NODES_SHIFT | |
358 | int | |
359 | default "4" | |
360 | depends on NEED_MULTIPLE_NODES | |
361 | ||
362 | # Some NUMA nodes have memory ranges that span | |
363 | # other nodes. Even though a pfn is valid and | |
364 | # between a node's start and end pfns, it may not | |
365 | # reside on that node. See memmap_init_zone() | |
366 | # for details. | |
367 | config NODES_SPAN_OTHER_NODES | |
368 | def_bool y | |
369 | depends on NEED_MULTIPLE_NODES | |
370 | ||
371 | config ARCH_POPULATES_NODE_MAP | |
372 | def_bool y if SPARC64 | |
373 | ||
374 | config ARCH_SELECT_MEMORY_MODEL | |
375 | def_bool y if SPARC64 | |
376 | ||
377 | config ARCH_SPARSEMEM_ENABLE | |
378 | def_bool y if SPARC64 | |
379 | select SPARSEMEM_VMEMMAP_ENABLE | |
380 | ||
381 | config ARCH_SPARSEMEM_DEFAULT | |
382 | def_bool y if SPARC64 | |
383 | ||
384 | source "mm/Kconfig" | |
385 | ||
386 | config SCHED_SMT | |
387 | bool "SMT (Hyperthreading) scheduler support" | |
388 | depends on SPARC64 && SMP | |
389 | default y | |
390 | help | |
391 | SMT scheduler support improves the CPU scheduler's decision making | |
392 | when dealing with SPARC cpus at a cost of slightly increased overhead | |
393 | in some places. If unsure say N here. | |
394 | ||
395 | config SCHED_MC | |
396 | bool "Multi-core scheduler support" | |
397 | depends on SPARC64 && SMP | |
398 | default y | |
399 | help | |
400 | Multi-core scheduler support improves the CPU scheduler's decision | |
401 | making when dealing with multi-core CPU chips at a cost of slightly | |
402 | increased overhead in some places. If unsure say N here. | |
403 | ||
404 | if SPARC64 | |
405 | source "kernel/Kconfig.preempt" | |
406 | endif | |
407 | ||
408 | config CMDLINE_BOOL | |
409 | bool "Default bootloader kernel arguments" | |
410 | depends on SPARC64 | |
411 | ||
412 | config CMDLINE | |
413 | string "Initial kernel command string" | |
414 | depends on CMDLINE_BOOL | |
415 | default "console=ttyS0,9600 root=/dev/sda1" | |
416 | help | |
417 | Say Y here if you want to be able to pass default arguments to | |
418 | the kernel. This will be overridden by the bootloader, if you | |
419 | use one (such as SILO). This is most useful if you want to boot | |
420 | a kernel from TFTP, and want default options to be available | |
421 | with having them passed on the command line. | |
422 | ||
423 | NOTE: This option WILL override the PROM bootargs setting! | |
424 | ||
425 | config SUN_PM | |
426 | bool | |
427 | default y if SPARC32 | |
1da177e4 LT |
428 | help |
429 | Enable power management and CPU standby features on supported | |
430 | SPARC platforms. | |
431 | ||
4b27e0e1 SR |
432 | config SPARC_LED |
433 | tristate "Sun4m LED driver" | |
26b4c912 | 434 | depends on SPARC32 |
4b27e0e1 SR |
435 | help |
436 | This driver toggles the front-panel LED on sun4m systems | |
437 | in a user-specifiable manner. Its state can be probed | |
438 | by reading /proc/led and its blinking mode can be changed | |
439 | via writes to /proc/led | |
440 | ||
26b4c912 SR |
441 | config SERIAL_CONSOLE |
442 | bool | |
443 | depends on SPARC32 | |
444 | default y | |
445 | ---help--- | |
446 | If you say Y here, it will be possible to use a serial port as the | |
447 | system console (the system console is the device which receives all | |
448 | kernel messages and warnings and which allows logins in single user | |
449 | mode). This could be useful if some terminal or printer is connected | |
450 | to that serial port. | |
451 | ||
452 | Even if you say Y here, the currently visible virtual console | |
453 | (/dev/tty0) will still be used as the system console by default, but | |
454 | you can alter that using a kernel command line option such as | |
455 | "console=ttyS1". (Try "man bootparam" or see the documentation of | |
456 | your boot loader (silo) about how to pass options to the kernel at | |
457 | boot time.) | |
458 | ||
459 | If you don't have a graphics card installed and you say Y here, the | |
460 | kernel will automatically use the first serial line, /dev/ttyS0, as | |
461 | system console. | |
462 | ||
463 | If unsure, say N. | |
4b27e0e1 | 464 | |
5213a780 KE |
465 | config SPARC_LEON |
466 | bool "Sparc Leon processor family" | |
467 | depends on SPARC32 | |
468 | ---help--- | |
469 | If you say Y here if you are running on a SPARC-LEON processor. | |
470 | The LEON processor is a synthesizable VHDL model of the | |
471 | SPARC-v8 standard. LEON is part of the GRLIB collection of | |
472 | IP cores that are distributed under GPL. GRLIB can be downloaded | |
473 | from www.gaisler.com. You can download a sparc-linux cross-compilation | |
474 | toolchain at www.gaisler.com. | |
475 | ||
4b27e0e1 SR |
476 | endmenu |
477 | ||
478 | menu "Bus options (PCI etc.)" | |
4b27e0e1 SR |
479 | config SBUS |
480 | bool | |
481 | default y | |
482 | ||
483 | config SBUSCHAR | |
484 | bool | |
485 | default y | |
486 | ||
26b4c912 SR |
487 | config SUN_LDOMS |
488 | bool "Sun Logical Domains support" | |
489 | depends on SPARC64 | |
490 | help | |
491 | Say Y here is you want to support virtual devices via | |
492 | Logical Domains. | |
493 | ||
1da177e4 LT |
494 | config PCI |
495 | bool "Support for PCI and PS/2 keyboard/mouse" | |
496 | help | |
26b4c912 SR |
497 | Find out whether your system includes a PCI bus. PCI is the name of |
498 | a bus system, i.e. the way the CPU talks to the other stuff inside | |
499 | your box. If you say Y here, the kernel will include drivers and | |
500 | infrastructure code to support PCI bus devices. | |
501 | ||
1da177e4 LT |
502 | CONFIG_PCI is needed for all JavaStation's (including MrCoffee), |
503 | CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC. | |
504 | All of these platforms are extremely obscure, so say N if unsure. | |
505 | ||
26b4c912 SR |
506 | config PCI_DOMAINS |
507 | def_bool PCI if SPARC64 | |
508 | ||
36e23590 MW |
509 | config PCI_SYSCALL |
510 | def_bool PCI | |
511 | ||
1da177e4 LT |
512 | source "drivers/pci/Kconfig" |
513 | ||
c6afec5e DM |
514 | source "drivers/pcmcia/Kconfig" |
515 | ||
1da177e4 LT |
516 | config SUN_OPENPROMFS |
517 | tristate "Openprom tree appears in /proc/openprom" | |
518 | help | |
519 | If you say Y, the OpenPROM device tree will be available as a | |
520 | virtual file system, which you can mount to /proc/openprom by "mount | |
521 | -t openpromfs none /proc/openprom". | |
522 | ||
523 | To compile the /proc/openprom support as a module, choose M here: the | |
524 | module will be called openpromfs. | |
525 | ||
526 | Only choose N if you know in advance that you will not need to modify | |
527 | OpenPROM settings on the running system. | |
528 | ||
d670bd4f SR |
529 | # Makefile helpers |
530 | config SPARC32_PCI | |
531 | bool | |
532 | default y | |
533 | depends on SPARC32 && PCI | |
534 | ||
535 | config SPARC64_PCI | |
536 | bool | |
537 | default y | |
538 | depends on SPARC64 && PCI | |
30aaa808 WLII |
539 | |
540 | endmenu | |
541 | ||
12e271a8 SR |
542 | menu "Executable file formats" |
543 | ||
544 | source "fs/Kconfig.binfmt" | |
545 | ||
26b4c912 SR |
546 | config COMPAT |
547 | bool | |
548 | depends on SPARC64 | |
549 | default y | |
550 | select COMPAT_BINFMT_ELF | |
551 | ||
552 | config SYSVIPC_COMPAT | |
553 | bool | |
554 | depends on COMPAT && SYSVIPC | |
555 | default y | |
556 | ||
12e271a8 SR |
557 | endmenu |
558 | ||
d5950b43 SR |
559 | source "net/Kconfig" |
560 | ||
30aaa808 | 561 | source "drivers/Kconfig" |
1da177e4 | 562 | |
1da177e4 | 563 | source "drivers/sbus/char/Kconfig" |
1da177e4 | 564 | |
1da177e4 LT |
565 | source "fs/Kconfig" |
566 | ||
1da177e4 LT |
567 | source "arch/sparc/Kconfig.debug" |
568 | ||
569 | source "security/Kconfig" | |
570 | ||
571 | source "crypto/Kconfig" | |
572 | ||
573 | source "lib/Kconfig" |