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