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 | |
95f72d1e | 45 | select HAVE_MEMBLOCK |
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 | ||
18e98307 FT |
136 | config NEED_SG_DMA_LENGTH |
137 | def_bool y | |
138 | ||
1da177e4 LT |
139 | config GENERIC_ISA_DMA |
140 | bool | |
26b4c912 | 141 | default y if SPARC32 |
1da177e4 | 142 | |
15df0f33 DM |
143 | config GENERIC_GPIO |
144 | bool | |
145 | help | |
146 | Generic GPIO API support | |
147 | ||
0785b9dc SR |
148 | config ARCH_NO_VIRT_TO_BUS |
149 | def_bool y | |
150 | ||
97e873e5 SR |
151 | config OF |
152 | def_bool y | |
153 | ||
6a11f75b AM |
154 | config ARCH_SUPPORTS_DEBUG_PAGEALLOC |
155 | def_bool y if SPARC64 | |
156 | ||
1da177e4 LT |
157 | source "init/Kconfig" |
158 | ||
dc52ddc0 MH |
159 | source "kernel/Kconfig.freezer" |
160 | ||
26b4c912 | 161 | menu "Processor type and features" |
1da177e4 | 162 | |
1da177e4 LT |
163 | config SMP |
164 | bool "Symmetric multi-processing support (does not work on sun4/sun4c)" | |
1da177e4 LT |
165 | ---help--- |
166 | This enables support for systems with more than one CPU. If you have | |
167 | a system with only one CPU, say N. If you have a system with more | |
168 | than one CPU, say Y. | |
169 | ||
170 | If you say N here, the kernel will run on single and multiprocessor | |
171 | machines, but will use only one CPU of a multiprocessor machine. If | |
172 | you say Y here, the kernel will run on many, but not all, | |
173 | singleprocessor machines. On a singleprocessor machine, the kernel | |
174 | will run faster if you say N here. | |
175 | ||
176 | People using multiprocessor machines who say Y here should also say | |
177 | Y to "Enhanced Real Time Clock Support", below. The "Advanced Power | |
178 | Management" code will be disabled if you say Y here. | |
179 | ||
03502faa AB |
180 | See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO |
181 | available at <http://www.tldp.org/docs.html#howto>. | |
1da177e4 LT |
182 | |
183 | If you don't know what to do here, say N. | |
184 | ||
185 | config NR_CPUS | |
26b4c912 | 186 | int "Maximum number of CPUs" |
1da177e4 | 187 | depends on SMP |
26b4c912 SR |
188 | range 2 32 if SPARC32 |
189 | range 2 1024 if SPARC64 | |
190 | default 32 if SPARC32 | |
191 | default 64 if SPARC64 | |
1da177e4 | 192 | |
26b4c912 | 193 | source kernel/Kconfig.hz |
1da177e4 | 194 | |
1da177e4 LT |
195 | config RWSEM_GENERIC_SPINLOCK |
196 | bool | |
26b4c912 | 197 | default y if SPARC32 |
1da177e4 LT |
198 | |
199 | config RWSEM_XCHGADD_ALGORITHM | |
200 | bool | |
26b4c912 | 201 | default y if SPARC64 |
1da177e4 | 202 | |
d59288b7 AM |
203 | config GENERIC_FIND_NEXT_BIT |
204 | bool | |
205 | default y | |
206 | ||
207 | config GENERIC_HWEIGHT | |
208 | bool | |
26b4c912 | 209 | default y if !ULTRA_HAS_POPULATION_COUNT |
d59288b7 | 210 | |
1da177e4 LT |
211 | config GENERIC_CALIBRATE_DELAY |
212 | bool | |
213 | default y | |
214 | ||
a08b6b79 Z |
215 | config ARCH_MAY_HAVE_PC_FDC |
216 | bool | |
217 | default y | |
218 | ||
5f81941c MH |
219 | config EMULATED_CMPXCHG |
220 | bool | |
26b4c912 | 221 | default y if SPARC32 |
5f81941c MH |
222 | help |
223 | Sparc32 does not have a CAS instruction like sparc64. cmpxchg() | |
224 | is emulated, and therefore it is not completely atomic. | |
225 | ||
d670bd4f SR |
226 | # Makefile helpers |
227 | config SPARC32_SMP | |
228 | bool | |
229 | default y | |
230 | depends on SPARC32 && SMP | |
231 | ||
232 | config SPARC64_SMP | |
233 | bool | |
234 | default y | |
235 | depends on SPARC64 && SMP | |
236 | ||
c57ec52f DM |
237 | config EARLYFB |
238 | bool "Support for early boot text console" | |
239 | default y | |
240 | depends on SPARC64 | |
241 | help | |
242 | Say Y here to enable a faster early framebuffer boot console. | |
243 | ||
26b4c912 SR |
244 | choice |
245 | prompt "Kernel page size" if SPARC64 | |
246 | default SPARC64_PAGE_SIZE_8KB | |
247 | ||
248 | config SPARC64_PAGE_SIZE_8KB | |
249 | bool "8KB" | |
250 | help | |
251 | This lets you select the page size of the kernel. | |
252 | ||
253 | 8KB and 64KB work quite well, since SPARC ELF sections | |
254 | provide for up to 64KB alignment. | |
255 | ||
256 | If you don't know what to do, choose 8KB. | |
257 | ||
258 | config SPARC64_PAGE_SIZE_64KB | |
259 | bool "64KB" | |
260 | ||
261 | endchoice | |
262 | ||
263 | config SECCOMP | |
264 | bool "Enable seccomp to safely compute untrusted bytecode" | |
265 | depends on SPARC64 && PROC_FS | |
266 | default y | |
267 | help | |
268 | This kernel feature is useful for number crunching applications | |
269 | that may need to compute untrusted bytecode during their | |
270 | execution. By using pipes or other transports made available to | |
271 | the process as file descriptors supporting the read/write | |
272 | syscalls, it's possible to isolate those applications in | |
273 | their own address space using seccomp. Once seccomp is | |
274 | enabled via /proc/<pid>/seccomp, it cannot be disabled | |
275 | and the task is only allowed to execute a few safe syscalls | |
276 | defined by each seccomp mode. | |
277 | ||
278 | If unsure, say Y. Only embedded should say N here. | |
279 | ||
280 | config HOTPLUG_CPU | |
281 | bool "Support for hot-pluggable CPUs" | |
282 | depends on SPARC64 && SMP | |
283 | select HOTPLUG | |
284 | help | |
285 | Say Y here to experiment with turning CPUs off and on. CPUs | |
286 | can be controlled through /sys/devices/system/cpu/cpu#. | |
287 | Say N if you want to disable CPU hotplug. | |
288 | ||
289 | config GENERIC_HARDIRQS | |
290 | bool | |
291 | default y if SPARC64 | |
292 | ||
293 | source "kernel/time/Kconfig" | |
294 | ||
295 | if SPARC64 | |
296 | source "drivers/cpufreq/Kconfig" | |
297 | ||
298 | config US3_FREQ | |
299 | tristate "UltraSPARC-III CPU Frequency driver" | |
300 | depends on CPU_FREQ | |
301 | select CPU_FREQ_TABLE | |
302 | help | |
303 | This adds the CPUFreq driver for UltraSPARC-III processors. | |
304 | ||
305 | For details, take a look at <file:Documentation/cpu-freq>. | |
306 | ||
307 | If in doubt, say N. | |
308 | ||
309 | config US2E_FREQ | |
310 | tristate "UltraSPARC-IIe CPU Frequency driver" | |
311 | depends on CPU_FREQ | |
312 | select CPU_FREQ_TABLE | |
313 | help | |
314 | This adds the CPUFreq driver for UltraSPARC-IIe processors. | |
315 | ||
316 | For details, take a look at <file:Documentation/cpu-freq>. | |
317 | ||
318 | If in doubt, say N. | |
319 | ||
320 | endif | |
321 | ||
322 | config US3_MC | |
323 | tristate "UltraSPARC-III Memory Controller driver" | |
324 | depends on SPARC64 | |
325 | default y | |
326 | help | |
327 | This adds a driver for the UltraSPARC-III memory controller. | |
328 | Loading this driver allows exact mnemonic strings to be | |
329 | printed in the event of a memory error, so that the faulty DIMM | |
330 | on the motherboard can be matched to the error. | |
331 | ||
332 | If in doubt, say Y, as this information can be very useful. | |
333 | ||
334 | # Global things across all Sun machines. | |
335 | config GENERIC_LOCKBREAK | |
1da177e4 LT |
336 | bool |
337 | default y | |
26b4c912 SR |
338 | depends on SPARC64 && SMP && PREEMPT |
339 | ||
340 | choice | |
341 | prompt "SPARC64 Huge TLB Page Size" | |
342 | depends on SPARC64 && HUGETLB_PAGE | |
343 | default HUGETLB_PAGE_SIZE_4MB | |
344 | ||
345 | config HUGETLB_PAGE_SIZE_4MB | |
346 | bool "4MB" | |
347 | ||
348 | config HUGETLB_PAGE_SIZE_512K | |
349 | bool "512K" | |
350 | ||
351 | config HUGETLB_PAGE_SIZE_64K | |
352 | depends on !SPARC64_PAGE_SIZE_64KB | |
353 | bool "64K" | |
354 | ||
355 | endchoice | |
356 | ||
357 | config NUMA | |
358 | bool "NUMA support" | |
359 | depends on SPARC64 && SMP | |
360 | ||
361 | config NODES_SHIFT | |
362 | int | |
363 | default "4" | |
364 | depends on NEED_MULTIPLE_NODES | |
365 | ||
366 | # Some NUMA nodes have memory ranges that span | |
367 | # other nodes. Even though a pfn is valid and | |
368 | # between a node's start and end pfns, it may not | |
369 | # reside on that node. See memmap_init_zone() | |
370 | # for details. | |
371 | config NODES_SPAN_OTHER_NODES | |
372 | def_bool y | |
373 | depends on NEED_MULTIPLE_NODES | |
374 | ||
375 | config ARCH_POPULATES_NODE_MAP | |
376 | def_bool y if SPARC64 | |
377 | ||
378 | config ARCH_SELECT_MEMORY_MODEL | |
379 | def_bool y if SPARC64 | |
380 | ||
381 | config ARCH_SPARSEMEM_ENABLE | |
382 | def_bool y if SPARC64 | |
383 | select SPARSEMEM_VMEMMAP_ENABLE | |
384 | ||
385 | config ARCH_SPARSEMEM_DEFAULT | |
386 | def_bool y if SPARC64 | |
387 | ||
388 | source "mm/Kconfig" | |
389 | ||
390 | config SCHED_SMT | |
391 | bool "SMT (Hyperthreading) scheduler support" | |
392 | depends on SPARC64 && SMP | |
393 | default y | |
394 | help | |
395 | SMT scheduler support improves the CPU scheduler's decision making | |
396 | when dealing with SPARC cpus at a cost of slightly increased overhead | |
397 | in some places. If unsure say N here. | |
398 | ||
399 | config SCHED_MC | |
400 | bool "Multi-core scheduler support" | |
401 | depends on SPARC64 && SMP | |
402 | default y | |
403 | help | |
404 | Multi-core scheduler support improves the CPU scheduler's decision | |
405 | making when dealing with multi-core CPU chips at a cost of slightly | |
406 | increased overhead in some places. If unsure say N here. | |
407 | ||
408 | if SPARC64 | |
409 | source "kernel/Kconfig.preempt" | |
410 | endif | |
411 | ||
412 | config CMDLINE_BOOL | |
413 | bool "Default bootloader kernel arguments" | |
414 | depends on SPARC64 | |
415 | ||
416 | config CMDLINE | |
417 | string "Initial kernel command string" | |
418 | depends on CMDLINE_BOOL | |
419 | default "console=ttyS0,9600 root=/dev/sda1" | |
420 | help | |
421 | Say Y here if you want to be able to pass default arguments to | |
422 | the kernel. This will be overridden by the bootloader, if you | |
423 | use one (such as SILO). This is most useful if you want to boot | |
424 | a kernel from TFTP, and want default options to be available | |
425 | with having them passed on the command line. | |
426 | ||
427 | NOTE: This option WILL override the PROM bootargs setting! | |
428 | ||
429 | config SUN_PM | |
430 | bool | |
431 | default y if SPARC32 | |
1da177e4 LT |
432 | help |
433 | Enable power management and CPU standby features on supported | |
434 | SPARC platforms. | |
435 | ||
4b27e0e1 SR |
436 | config SPARC_LED |
437 | tristate "Sun4m LED driver" | |
26b4c912 | 438 | depends on SPARC32 |
4b27e0e1 SR |
439 | help |
440 | This driver toggles the front-panel LED on sun4m systems | |
441 | in a user-specifiable manner. Its state can be probed | |
442 | by reading /proc/led and its blinking mode can be changed | |
443 | via writes to /proc/led | |
444 | ||
26b4c912 SR |
445 | config SERIAL_CONSOLE |
446 | bool | |
447 | depends on SPARC32 | |
448 | default y | |
449 | ---help--- | |
450 | If you say Y here, it will be possible to use a serial port as the | |
451 | system console (the system console is the device which receives all | |
452 | kernel messages and warnings and which allows logins in single user | |
453 | mode). This could be useful if some terminal or printer is connected | |
454 | to that serial port. | |
455 | ||
456 | Even if you say Y here, the currently visible virtual console | |
457 | (/dev/tty0) will still be used as the system console by default, but | |
458 | you can alter that using a kernel command line option such as | |
459 | "console=ttyS1". (Try "man bootparam" or see the documentation of | |
460 | your boot loader (silo) about how to pass options to the kernel at | |
461 | boot time.) | |
462 | ||
463 | If you don't have a graphics card installed and you say Y here, the | |
464 | kernel will automatically use the first serial line, /dev/ttyS0, as | |
465 | system console. | |
466 | ||
467 | If unsure, say N. | |
4b27e0e1 | 468 | |
5213a780 KE |
469 | config SPARC_LEON |
470 | bool "Sparc Leon processor family" | |
471 | depends on SPARC32 | |
472 | ---help--- | |
473 | If you say Y here if you are running on a SPARC-LEON processor. | |
474 | The LEON processor is a synthesizable VHDL model of the | |
475 | SPARC-v8 standard. LEON is part of the GRLIB collection of | |
476 | IP cores that are distributed under GPL. GRLIB can be downloaded | |
477 | from www.gaisler.com. You can download a sparc-linux cross-compilation | |
478 | toolchain at www.gaisler.com. | |
479 | ||
4b27e0e1 SR |
480 | endmenu |
481 | ||
482 | menu "Bus options (PCI etc.)" | |
4b27e0e1 SR |
483 | config SBUS |
484 | bool | |
485 | default y | |
486 | ||
487 | config SBUSCHAR | |
488 | bool | |
489 | default y | |
490 | ||
26b4c912 SR |
491 | config SUN_LDOMS |
492 | bool "Sun Logical Domains support" | |
493 | depends on SPARC64 | |
494 | help | |
495 | Say Y here is you want to support virtual devices via | |
496 | Logical Domains. | |
497 | ||
1da177e4 LT |
498 | config PCI |
499 | bool "Support for PCI and PS/2 keyboard/mouse" | |
500 | help | |
26b4c912 SR |
501 | Find out whether your system includes a PCI bus. PCI is the name of |
502 | a bus system, i.e. the way the CPU talks to the other stuff inside | |
503 | your box. If you say Y here, the kernel will include drivers and | |
504 | infrastructure code to support PCI bus devices. | |
505 | ||
1da177e4 LT |
506 | CONFIG_PCI is needed for all JavaStation's (including MrCoffee), |
507 | CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC. | |
508 | All of these platforms are extremely obscure, so say N if unsure. | |
509 | ||
26b4c912 SR |
510 | config PCI_DOMAINS |
511 | def_bool PCI if SPARC64 | |
512 | ||
36e23590 MW |
513 | config PCI_SYSCALL |
514 | def_bool PCI | |
515 | ||
1da177e4 LT |
516 | source "drivers/pci/Kconfig" |
517 | ||
c6afec5e DM |
518 | source "drivers/pcmcia/Kconfig" |
519 | ||
1da177e4 LT |
520 | config SUN_OPENPROMFS |
521 | tristate "Openprom tree appears in /proc/openprom" | |
522 | help | |
523 | If you say Y, the OpenPROM device tree will be available as a | |
524 | virtual file system, which you can mount to /proc/openprom by "mount | |
525 | -t openpromfs none /proc/openprom". | |
526 | ||
527 | To compile the /proc/openprom support as a module, choose M here: the | |
528 | module will be called openpromfs. | |
529 | ||
530 | Only choose N if you know in advance that you will not need to modify | |
531 | OpenPROM settings on the running system. | |
532 | ||
d670bd4f SR |
533 | # Makefile helpers |
534 | config SPARC32_PCI | |
535 | bool | |
536 | default y | |
537 | depends on SPARC32 && PCI | |
538 | ||
539 | config SPARC64_PCI | |
540 | bool | |
541 | default y | |
542 | depends on SPARC64 && PCI | |
30aaa808 WLII |
543 | |
544 | endmenu | |
545 | ||
12e271a8 SR |
546 | menu "Executable file formats" |
547 | ||
548 | source "fs/Kconfig.binfmt" | |
549 | ||
26b4c912 SR |
550 | config COMPAT |
551 | bool | |
552 | depends on SPARC64 | |
553 | default y | |
554 | select COMPAT_BINFMT_ELF | |
555 | ||
556 | config SYSVIPC_COMPAT | |
557 | bool | |
558 | depends on COMPAT && SYSVIPC | |
559 | default y | |
560 | ||
12e271a8 SR |
561 | endmenu |
562 | ||
d5950b43 SR |
563 | source "net/Kconfig" |
564 | ||
30aaa808 | 565 | source "drivers/Kconfig" |
1da177e4 | 566 | |
1da177e4 | 567 | source "drivers/sbus/char/Kconfig" |
1da177e4 | 568 | |
1da177e4 LT |
569 | source "fs/Kconfig" |
570 | ||
1da177e4 LT |
571 | source "arch/sparc/Kconfig.debug" |
572 | ||
573 | source "security/Kconfig" | |
574 | ||
575 | source "crypto/Kconfig" | |
576 | ||
577 | source "lib/Kconfig" |