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 | |
21 | select HAVE_IDE | |
22 | select HAVE_OPROFILE | |
26b4c912 | 23 | select HAVE_ARCH_KGDB if !SMP || SPARC64 |
35da3e39 SR |
24 | select HAVE_ARCH_TRACEHOOK |
25 | select ARCH_WANT_OPTIONAL_GPIOLIB | |
26 | select RTC_CLASS | |
27 | select RTC_DRV_M48T59 | |
cdd6c482 | 28 | select HAVE_PERF_EVENTS |
906010b2 | 29 | select PERF_USE_VMALLOC |
02f7a189 | 30 | select HAVE_DMA_ATTRS |
451d7400 | 31 | select HAVE_DMA_API_DEBUG |
35da3e39 | 32 | |
35da3e39 | 33 | config SPARC32 |
761b6026 | 34 | def_bool !64BIT |
35da3e39 | 35 | |
26b4c912 | 36 | config SPARC64 |
761b6026 | 37 | def_bool 64BIT |
5bc05308 | 38 | select ARCH_SUPPORTS_MSI |
26b4c912 | 39 | select HAVE_FUNCTION_TRACER |
9960e9e8 DM |
40 | select HAVE_FUNCTION_GRAPH_TRACER |
41 | select HAVE_FUNCTION_GRAPH_FP_TEST | |
63b75495 | 42 | select HAVE_FUNCTION_TRACE_MCOUNT_TEST |
26b4c912 SR |
43 | select HAVE_KRETPROBES |
44 | select HAVE_KPROBES | |
45 | select HAVE_LMB | |
67605d68 | 46 | select HAVE_SYSCALL_WRAPPERS |
9be12f9b DM |
47 | select HAVE_DYNAMIC_FTRACE |
48 | select HAVE_FTRACE_MCOUNT_RECORD | |
c658ad1b | 49 | select HAVE_SYSCALL_TRACEPOINTS |
26b4c912 SR |
50 | select USE_GENERIC_SMP_HELPERS if SMP |
51 | select RTC_DRV_CMOS | |
52 | select RTC_DRV_BQ4802 | |
53 | select RTC_DRV_SUN4V | |
54 | select RTC_DRV_STARFIRE | |
cdd6c482 | 55 | select HAVE_PERF_EVENTS |
906010b2 | 56 | select PERF_USE_VMALLOC |
26b4c912 | 57 | |
5e538790 SR |
58 | config ARCH_DEFCONFIG |
59 | string | |
60 | default "arch/sparc/configs/sparc32_defconfig" if SPARC32 | |
61 | default "arch/sparc/configs/sparc64_defconfig" if SPARC64 | |
62 | ||
fe6875ec SR |
63 | # CONFIG_BITS can be used at source level to get 32/64 bits |
64 | config BITS | |
65 | int | |
66 | default 32 if SPARC32 | |
67 | default 64 if SPARC64 | |
5e538790 | 68 | |
26b4c912 | 69 | config GENERIC_TIME |
0299b137 JS |
70 | def_bool y |
71 | ||
72 | config ARCH_USES_GETTIMEOFFSET | |
26b4c912 | 73 | bool |
0299b137 | 74 | default y if SPARC32 |
26b4c912 SR |
75 | |
76 | config GENERIC_CMOS_UPDATE | |
77 | bool | |
f5c9c9be | 78 | default y |
26b4c912 SR |
79 | |
80 | config GENERIC_CLOCKEVENTS | |
81 | bool | |
82 | default y if SPARC64 | |
83 | ||
84 | config IOMMU_HELPER | |
85 | bool | |
86 | default y if SPARC64 | |
87 | ||
88 | config QUICKLIST | |
89 | bool | |
90 | default y if SPARC64 | |
91 | ||
92 | config STACKTRACE_SUPPORT | |
93 | bool | |
94 | default y if SPARC64 | |
95 | ||
96 | config LOCKDEP_SUPPORT | |
97 | bool | |
98 | default y if SPARC64 | |
99 | ||
6a5726dd DM |
100 | config HAVE_LATENCYTOP_SUPPORT |
101 | bool | |
102 | default y if SPARC64 | |
103 | ||
26b4c912 SR |
104 | config AUDIT_ARCH |
105 | bool | |
7e7e93a2 | 106 | default y |
26b4c912 SR |
107 | |
108 | config HAVE_SETUP_PER_CPU_AREA | |
109 | def_bool y if SPARC64 | |
110 | ||
bcb2107f | 111 | config NEED_PER_CPU_EMBED_FIRST_CHUNK |
4fd78a5f DM |
112 | def_bool y if SPARC64 |
113 | ||
a70c6913 TH |
114 | config NEED_PER_CPU_PAGE_FIRST_CHUNK |
115 | def_bool y if SPARC64 | |
116 | ||
26b4c912 SR |
117 | config GENERIC_HARDIRQS_NO__DO_IRQ |
118 | bool | |
119 | def_bool y if SPARC64 | |
120 | ||
1da177e4 LT |
121 | config MMU |
122 | bool | |
123 | default y | |
124 | ||
1da177e4 LT |
125 | config HIGHMEM |
126 | bool | |
26b4c912 | 127 | default y if SPARC32 |
1da177e4 | 128 | |
5ac6da66 CL |
129 | config ZONE_DMA |
130 | bool | |
26b4c912 | 131 | default y if SPARC32 |
5ac6da66 | 132 | |
d15b51be FT |
133 | config NEED_DMA_MAP_STATE |
134 | def_bool y | |
135 | ||
1da177e4 LT |
136 | config GENERIC_ISA_DMA |
137 | bool | |
26b4c912 | 138 | default y if SPARC32 |
1da177e4 | 139 | |
15df0f33 DM |
140 | config GENERIC_GPIO |
141 | bool | |
142 | help | |
143 | Generic GPIO API support | |
144 | ||
0785b9dc SR |
145 | config ARCH_NO_VIRT_TO_BUS |
146 | def_bool y | |
147 | ||
97e873e5 SR |
148 | config OF |
149 | def_bool y | |
150 | ||
6a11f75b AM |
151 | config ARCH_SUPPORTS_DEBUG_PAGEALLOC |
152 | def_bool y if SPARC64 | |
153 | ||
1da177e4 LT |
154 | source "init/Kconfig" |
155 | ||
dc52ddc0 MH |
156 | source "kernel/Kconfig.freezer" |
157 | ||
26b4c912 | 158 | menu "Processor type and features" |
1da177e4 | 159 | |
1da177e4 LT |
160 | config SMP |
161 | bool "Symmetric multi-processing support (does not work on sun4/sun4c)" | |
1da177e4 LT |
162 | ---help--- |
163 | This enables support for systems with more than one CPU. If you have | |
164 | a system with only one CPU, say N. If you have a system with more | |
165 | than one CPU, say Y. | |
166 | ||
167 | If you say N here, the kernel will run on single and multiprocessor | |
168 | machines, but will use only one CPU of a multiprocessor machine. If | |
169 | you say Y here, the kernel will run on many, but not all, | |
170 | singleprocessor machines. On a singleprocessor machine, the kernel | |
171 | will run faster if you say N here. | |
172 | ||
173 | People using multiprocessor machines who say Y here should also say | |
174 | Y to "Enhanced Real Time Clock Support", below. The "Advanced Power | |
175 | Management" code will be disabled if you say Y here. | |
176 | ||
03502faa AB |
177 | See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO |
178 | available at <http://www.tldp.org/docs.html#howto>. | |
1da177e4 LT |
179 | |
180 | If you don't know what to do here, say N. | |
181 | ||
182 | config NR_CPUS | |
26b4c912 | 183 | int "Maximum number of CPUs" |
1da177e4 | 184 | depends on SMP |
26b4c912 SR |
185 | range 2 32 if SPARC32 |
186 | range 2 1024 if SPARC64 | |
187 | default 32 if SPARC32 | |
188 | default 64 if SPARC64 | |
1da177e4 | 189 | |
26b4c912 | 190 | source kernel/Kconfig.hz |
1da177e4 | 191 | |
1da177e4 LT |
192 | config RWSEM_GENERIC_SPINLOCK |
193 | bool | |
26b4c912 | 194 | default y if SPARC32 |
1da177e4 LT |
195 | |
196 | config RWSEM_XCHGADD_ALGORITHM | |
197 | bool | |
26b4c912 | 198 | default y if SPARC64 |
1da177e4 | 199 | |
d59288b7 AM |
200 | config GENERIC_FIND_NEXT_BIT |
201 | bool | |
202 | default y | |
203 | ||
204 | config GENERIC_HWEIGHT | |
205 | bool | |
26b4c912 | 206 | default y if !ULTRA_HAS_POPULATION_COUNT |
d59288b7 | 207 | |
1da177e4 LT |
208 | config GENERIC_CALIBRATE_DELAY |
209 | bool | |
210 | default y | |
211 | ||
a08b6b79 AV |
212 | config ARCH_MAY_HAVE_PC_FDC |
213 | bool | |
214 | default y | |
215 | ||
5f81941c MH |
216 | config EMULATED_CMPXCHG |
217 | bool | |
26b4c912 | 218 | default y if SPARC32 |
5f81941c MH |
219 | help |
220 | Sparc32 does not have a CAS instruction like sparc64. cmpxchg() | |
221 | is emulated, and therefore it is not completely atomic. | |
222 | ||
d670bd4f SR |
223 | # Makefile helpers |
224 | config SPARC32_SMP | |
225 | bool | |
226 | default y | |
227 | depends on SPARC32 && SMP | |
228 | ||
229 | config SPARC64_SMP | |
230 | bool | |
231 | default y | |
232 | depends on SPARC64 && SMP | |
233 | ||
c57ec52f DM |
234 | config EARLYFB |
235 | bool "Support for early boot text console" | |
236 | default y | |
237 | depends on SPARC64 | |
238 | help | |
239 | Say Y here to enable a faster early framebuffer boot console. | |
240 | ||
26b4c912 SR |
241 | choice |
242 | prompt "Kernel page size" if SPARC64 | |
243 | default SPARC64_PAGE_SIZE_8KB | |
244 | ||
245 | config SPARC64_PAGE_SIZE_8KB | |
246 | bool "8KB" | |
247 | help | |
248 | This lets you select the page size of the kernel. | |
249 | ||
250 | 8KB and 64KB work quite well, since SPARC ELF sections | |
251 | provide for up to 64KB alignment. | |
252 | ||
253 | If you don't know what to do, choose 8KB. | |
254 | ||
255 | config SPARC64_PAGE_SIZE_64KB | |
256 | bool "64KB" | |
257 | ||
258 | endchoice | |
259 | ||
260 | config SECCOMP | |
261 | bool "Enable seccomp to safely compute untrusted bytecode" | |
262 | depends on SPARC64 && PROC_FS | |
263 | default y | |
264 | help | |
265 | This kernel feature is useful for number crunching applications | |
266 | that may need to compute untrusted bytecode during their | |
267 | execution. By using pipes or other transports made available to | |
268 | the process as file descriptors supporting the read/write | |
269 | syscalls, it's possible to isolate those applications in | |
270 | their own address space using seccomp. Once seccomp is | |
271 | enabled via /proc/<pid>/seccomp, it cannot be disabled | |
272 | and the task is only allowed to execute a few safe syscalls | |
273 | defined by each seccomp mode. | |
274 | ||
275 | If unsure, say Y. Only embedded should say N here. | |
276 | ||
277 | config HOTPLUG_CPU | |
278 | bool "Support for hot-pluggable CPUs" | |
279 | depends on SPARC64 && SMP | |
280 | select HOTPLUG | |
281 | help | |
282 | Say Y here to experiment with turning CPUs off and on. CPUs | |
283 | can be controlled through /sys/devices/system/cpu/cpu#. | |
284 | Say N if you want to disable CPU hotplug. | |
285 | ||
286 | config GENERIC_HARDIRQS | |
287 | bool | |
288 | default y if SPARC64 | |
289 | ||
290 | source "kernel/time/Kconfig" | |
291 | ||
292 | if SPARC64 | |
293 | source "drivers/cpufreq/Kconfig" | |
294 | ||
295 | config US3_FREQ | |
296 | tristate "UltraSPARC-III CPU Frequency driver" | |
297 | depends on CPU_FREQ | |
298 | select CPU_FREQ_TABLE | |
299 | help | |
300 | This adds the CPUFreq driver for UltraSPARC-III processors. | |
301 | ||
302 | For details, take a look at <file:Documentation/cpu-freq>. | |
303 | ||
304 | If in doubt, say N. | |
305 | ||
306 | config US2E_FREQ | |
307 | tristate "UltraSPARC-IIe CPU Frequency driver" | |
308 | depends on CPU_FREQ | |
309 | select CPU_FREQ_TABLE | |
310 | help | |
311 | This adds the CPUFreq driver for UltraSPARC-IIe processors. | |
312 | ||
313 | For details, take a look at <file:Documentation/cpu-freq>. | |
314 | ||
315 | If in doubt, say N. | |
316 | ||
317 | endif | |
318 | ||
319 | config US3_MC | |
320 | tristate "UltraSPARC-III Memory Controller driver" | |
321 | depends on SPARC64 | |
322 | default y | |
323 | help | |
324 | This adds a driver for the UltraSPARC-III memory controller. | |
325 | Loading this driver allows exact mnemonic strings to be | |
326 | printed in the event of a memory error, so that the faulty DIMM | |
327 | on the motherboard can be matched to the error. | |
328 | ||
329 | If in doubt, say Y, as this information can be very useful. | |
330 | ||
331 | # Global things across all Sun machines. | |
332 | config GENERIC_LOCKBREAK | |
1da177e4 LT |
333 | bool |
334 | default y | |
26b4c912 SR |
335 | depends on SPARC64 && SMP && PREEMPT |
336 | ||
337 | choice | |
338 | prompt "SPARC64 Huge TLB Page Size" | |
339 | depends on SPARC64 && HUGETLB_PAGE | |
340 | default HUGETLB_PAGE_SIZE_4MB | |
341 | ||
342 | config HUGETLB_PAGE_SIZE_4MB | |
343 | bool "4MB" | |
344 | ||
345 | config HUGETLB_PAGE_SIZE_512K | |
346 | bool "512K" | |
347 | ||
348 | config HUGETLB_PAGE_SIZE_64K | |
349 | depends on !SPARC64_PAGE_SIZE_64KB | |
350 | bool "64K" | |
351 | ||
352 | endchoice | |
353 | ||
354 | config NUMA | |
355 | bool "NUMA support" | |
356 | depends on SPARC64 && SMP | |
357 | ||
358 | config NODES_SHIFT | |
359 | int | |
360 | default "4" | |
361 | depends on NEED_MULTIPLE_NODES | |
362 | ||
363 | # Some NUMA nodes have memory ranges that span | |
364 | # other nodes. Even though a pfn is valid and | |
365 | # between a node's start and end pfns, it may not | |
366 | # reside on that node. See memmap_init_zone() | |
367 | # for details. | |
368 | config NODES_SPAN_OTHER_NODES | |
369 | def_bool y | |
370 | depends on NEED_MULTIPLE_NODES | |
371 | ||
372 | config ARCH_POPULATES_NODE_MAP | |
373 | def_bool y if SPARC64 | |
374 | ||
375 | config ARCH_SELECT_MEMORY_MODEL | |
376 | def_bool y if SPARC64 | |
377 | ||
378 | config ARCH_SPARSEMEM_ENABLE | |
379 | def_bool y if SPARC64 | |
380 | select SPARSEMEM_VMEMMAP_ENABLE | |
381 | ||
382 | config ARCH_SPARSEMEM_DEFAULT | |
383 | def_bool y if SPARC64 | |
384 | ||
385 | source "mm/Kconfig" | |
386 | ||
387 | config SCHED_SMT | |
388 | bool "SMT (Hyperthreading) scheduler support" | |
389 | depends on SPARC64 && SMP | |
390 | default y | |
391 | help | |
392 | SMT scheduler support improves the CPU scheduler's decision making | |
393 | when dealing with SPARC cpus at a cost of slightly increased overhead | |
394 | in some places. If unsure say N here. | |
395 | ||
396 | config SCHED_MC | |
397 | bool "Multi-core scheduler support" | |
398 | depends on SPARC64 && SMP | |
399 | default y | |
400 | help | |
401 | Multi-core scheduler support improves the CPU scheduler's decision | |
402 | making when dealing with multi-core CPU chips at a cost of slightly | |
403 | increased overhead in some places. If unsure say N here. | |
404 | ||
405 | if SPARC64 | |
406 | source "kernel/Kconfig.preempt" | |
407 | endif | |
408 | ||
409 | config CMDLINE_BOOL | |
410 | bool "Default bootloader kernel arguments" | |
411 | depends on SPARC64 | |
412 | ||
413 | config CMDLINE | |
414 | string "Initial kernel command string" | |
415 | depends on CMDLINE_BOOL | |
416 | default "console=ttyS0,9600 root=/dev/sda1" | |
417 | help | |
418 | Say Y here if you want to be able to pass default arguments to | |
419 | the kernel. This will be overridden by the bootloader, if you | |
420 | use one (such as SILO). This is most useful if you want to boot | |
421 | a kernel from TFTP, and want default options to be available | |
422 | with having them passed on the command line. | |
423 | ||
424 | NOTE: This option WILL override the PROM bootargs setting! | |
425 | ||
426 | config SUN_PM | |
427 | bool | |
428 | default y if SPARC32 | |
1da177e4 LT |
429 | help |
430 | Enable power management and CPU standby features on supported | |
431 | SPARC platforms. | |
432 | ||
4b27e0e1 SR |
433 | config SPARC_LED |
434 | tristate "Sun4m LED driver" | |
26b4c912 | 435 | depends on SPARC32 |
4b27e0e1 SR |
436 | help |
437 | This driver toggles the front-panel LED on sun4m systems | |
438 | in a user-specifiable manner. Its state can be probed | |
439 | by reading /proc/led and its blinking mode can be changed | |
440 | via writes to /proc/led | |
441 | ||
26b4c912 SR |
442 | config SERIAL_CONSOLE |
443 | bool | |
444 | depends on SPARC32 | |
445 | default y | |
446 | ---help--- | |
447 | If you say Y here, it will be possible to use a serial port as the | |
448 | system console (the system console is the device which receives all | |
449 | kernel messages and warnings and which allows logins in single user | |
450 | mode). This could be useful if some terminal or printer is connected | |
451 | to that serial port. | |
452 | ||
453 | Even if you say Y here, the currently visible virtual console | |
454 | (/dev/tty0) will still be used as the system console by default, but | |
455 | you can alter that using a kernel command line option such as | |
456 | "console=ttyS1". (Try "man bootparam" or see the documentation of | |
457 | your boot loader (silo) about how to pass options to the kernel at | |
458 | boot time.) | |
459 | ||
460 | If you don't have a graphics card installed and you say Y here, the | |
461 | kernel will automatically use the first serial line, /dev/ttyS0, as | |
462 | system console. | |
463 | ||
464 | If unsure, say N. | |
4b27e0e1 | 465 | |
5213a780 KE |
466 | config SPARC_LEON |
467 | bool "Sparc Leon processor family" | |
468 | depends on SPARC32 | |
469 | ---help--- | |
470 | If you say Y here if you are running on a SPARC-LEON processor. | |
471 | The LEON processor is a synthesizable VHDL model of the | |
472 | SPARC-v8 standard. LEON is part of the GRLIB collection of | |
473 | IP cores that are distributed under GPL. GRLIB can be downloaded | |
474 | from www.gaisler.com. You can download a sparc-linux cross-compilation | |
475 | toolchain at www.gaisler.com. | |
476 | ||
4b27e0e1 SR |
477 | endmenu |
478 | ||
479 | menu "Bus options (PCI etc.)" | |
4b27e0e1 SR |
480 | config SBUS |
481 | bool | |
482 | default y | |
483 | ||
484 | config SBUSCHAR | |
485 | bool | |
486 | default y | |
487 | ||
26b4c912 SR |
488 | config SUN_LDOMS |
489 | bool "Sun Logical Domains support" | |
490 | depends on SPARC64 | |
491 | help | |
492 | Say Y here is you want to support virtual devices via | |
493 | Logical Domains. | |
494 | ||
1da177e4 LT |
495 | config PCI |
496 | bool "Support for PCI and PS/2 keyboard/mouse" | |
497 | help | |
26b4c912 SR |
498 | Find out whether your system includes a PCI bus. PCI is the name of |
499 | a bus system, i.e. the way the CPU talks to the other stuff inside | |
500 | your box. If you say Y here, the kernel will include drivers and | |
501 | infrastructure code to support PCI bus devices. | |
502 | ||
1da177e4 LT |
503 | CONFIG_PCI is needed for all JavaStation's (including MrCoffee), |
504 | CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC. | |
505 | All of these platforms are extremely obscure, so say N if unsure. | |
506 | ||
26b4c912 SR |
507 | config PCI_DOMAINS |
508 | def_bool PCI if SPARC64 | |
509 | ||
36e23590 MW |
510 | config PCI_SYSCALL |
511 | def_bool PCI | |
512 | ||
1da177e4 LT |
513 | source "drivers/pci/Kconfig" |
514 | ||
c6afec5e DM |
515 | source "drivers/pcmcia/Kconfig" |
516 | ||
1da177e4 LT |
517 | config SUN_OPENPROMFS |
518 | tristate "Openprom tree appears in /proc/openprom" | |
519 | help | |
520 | If you say Y, the OpenPROM device tree will be available as a | |
521 | virtual file system, which you can mount to /proc/openprom by "mount | |
522 | -t openpromfs none /proc/openprom". | |
523 | ||
524 | To compile the /proc/openprom support as a module, choose M here: the | |
525 | module will be called openpromfs. | |
526 | ||
527 | Only choose N if you know in advance that you will not need to modify | |
528 | OpenPROM settings on the running system. | |
529 | ||
d670bd4f SR |
530 | # Makefile helpers |
531 | config SPARC32_PCI | |
532 | bool | |
533 | default y | |
534 | depends on SPARC32 && PCI | |
535 | ||
536 | config SPARC64_PCI | |
537 | bool | |
538 | default y | |
539 | depends on SPARC64 && PCI | |
30aaa808 WLII |
540 | |
541 | endmenu | |
542 | ||
12e271a8 SR |
543 | menu "Executable file formats" |
544 | ||
545 | source "fs/Kconfig.binfmt" | |
546 | ||
26b4c912 SR |
547 | config COMPAT |
548 | bool | |
549 | depends on SPARC64 | |
550 | default y | |
551 | select COMPAT_BINFMT_ELF | |
552 | ||
553 | config SYSVIPC_COMPAT | |
554 | bool | |
555 | depends on COMPAT && SYSVIPC | |
556 | default y | |
557 | ||
12e271a8 SR |
558 | endmenu |
559 | ||
d5950b43 SR |
560 | source "net/Kconfig" |
561 | ||
30aaa808 | 562 | source "drivers/Kconfig" |
1da177e4 | 563 | |
1da177e4 | 564 | source "drivers/sbus/char/Kconfig" |
1da177e4 | 565 | |
1da177e4 LT |
566 | source "fs/Kconfig" |
567 | ||
1da177e4 LT |
568 | source "arch/sparc/Kconfig.debug" |
569 | ||
570 | source "security/Kconfig" | |
571 | ||
572 | source "crypto/Kconfig" | |
573 | ||
574 | source "lib/Kconfig" |