Root/
1 | config 64BIT |
2 | bool "64-bit kernel" if ARCH = "sparc" |
3 | default ARCH = "sparc64" |
4 | help |
5 | SPARC is a family of RISC microprocessors designed and marketed by |
6 | Sun Microsystems, incorporated. They are very widely found in Sun |
7 | workstations and clones. |
8 | |
9 | Say yes to build a 64-bit kernel - formerly known as sparc64 |
10 | Say no to build a 32-bit kernel - formerly known as sparc |
11 | |
12 | config SPARC |
13 | bool |
14 | default y |
15 | select OF |
16 | select OF_PROMTREE |
17 | select HAVE_IDE |
18 | select HAVE_OPROFILE |
19 | select HAVE_ARCH_KGDB if !SMP || SPARC64 |
20 | select HAVE_ARCH_TRACEHOOK |
21 | select ARCH_WANT_OPTIONAL_GPIOLIB |
22 | select RTC_CLASS |
23 | select RTC_DRV_M48T59 |
24 | select HAVE_IRQ_WORK |
25 | select HAVE_DMA_ATTRS |
26 | select HAVE_DMA_API_DEBUG |
27 | select HAVE_ARCH_JUMP_LABEL |
28 | |
29 | config SPARC32 |
30 | def_bool !64BIT |
31 | |
32 | config SPARC64 |
33 | def_bool 64BIT |
34 | select ARCH_SUPPORTS_MSI |
35 | select HAVE_FUNCTION_TRACER |
36 | select HAVE_FUNCTION_GRAPH_TRACER |
37 | select HAVE_FUNCTION_GRAPH_FP_TEST |
38 | select HAVE_FUNCTION_TRACE_MCOUNT_TEST |
39 | select HAVE_KRETPROBES |
40 | select HAVE_KPROBES |
41 | select HAVE_MEMBLOCK |
42 | select HAVE_SYSCALL_WRAPPERS |
43 | select HAVE_DYNAMIC_FTRACE |
44 | select HAVE_FTRACE_MCOUNT_RECORD |
45 | select HAVE_SYSCALL_TRACEPOINTS |
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 |
51 | select HAVE_PERF_EVENTS |
52 | select PERF_USE_VMALLOC |
53 | |
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 | |
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 |
64 | |
65 | config ARCH_USES_GETTIMEOFFSET |
66 | bool |
67 | default y if SPARC32 |
68 | |
69 | config GENERIC_CMOS_UPDATE |
70 | bool |
71 | default y |
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 | |
93 | config HAVE_LATENCYTOP_SUPPORT |
94 | bool |
95 | default y if SPARC64 |
96 | |
97 | config AUDIT_ARCH |
98 | bool |
99 | default y |
100 | |
101 | config HAVE_SETUP_PER_CPU_AREA |
102 | def_bool y if SPARC64 |
103 | |
104 | config NEED_PER_CPU_EMBED_FIRST_CHUNK |
105 | def_bool y if SPARC64 |
106 | |
107 | config NEED_PER_CPU_PAGE_FIRST_CHUNK |
108 | def_bool y if SPARC64 |
109 | |
110 | config GENERIC_HARDIRQS_NO__DO_IRQ |
111 | bool |
112 | def_bool y if SPARC64 |
113 | |
114 | config MMU |
115 | bool |
116 | default y |
117 | |
118 | config HIGHMEM |
119 | bool |
120 | default y if SPARC32 |
121 | |
122 | config ZONE_DMA |
123 | bool |
124 | default y if SPARC32 |
125 | |
126 | config NEED_DMA_MAP_STATE |
127 | def_bool y |
128 | |
129 | config NEED_SG_DMA_LENGTH |
130 | def_bool y |
131 | |
132 | config GENERIC_ISA_DMA |
133 | bool |
134 | default y if SPARC32 |
135 | |
136 | config GENERIC_GPIO |
137 | bool |
138 | help |
139 | Generic GPIO API support |
140 | |
141 | config ARCH_NO_VIRT_TO_BUS |
142 | def_bool y |
143 | |
144 | config ARCH_SUPPORTS_DEBUG_PAGEALLOC |
145 | def_bool y if SPARC64 |
146 | |
147 | source "init/Kconfig" |
148 | |
149 | source "kernel/Kconfig.freezer" |
150 | |
151 | menu "Processor type and features" |
152 | |
153 | config SMP |
154 | bool "Symmetric multi-processing support (does not work on sun4/sun4c)" |
155 | ---help--- |
156 | This enables support for systems with more than one CPU. If you have |
157 | a system with only one CPU, say N. If you have a system with more |
158 | than one CPU, say Y. |
159 | |
160 | If you say N here, the kernel will run on single and multiprocessor |
161 | machines, but will use only one CPU of a multiprocessor machine. If |
162 | you say Y here, the kernel will run on many, but not all, |
163 | singleprocessor machines. On a singleprocessor machine, the kernel |
164 | will run faster if you say N here. |
165 | |
166 | People using multiprocessor machines who say Y here should also say |
167 | Y to "Enhanced Real Time Clock Support", below. The "Advanced Power |
168 | Management" code will be disabled if you say Y here. |
169 | |
170 | See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO |
171 | available at <http://www.tldp.org/docs.html#howto>. |
172 | |
173 | If you don't know what to do here, say N. |
174 | |
175 | config NR_CPUS |
176 | int "Maximum number of CPUs" |
177 | depends on SMP |
178 | range 2 32 if SPARC32 |
179 | range 2 1024 if SPARC64 |
180 | default 32 if SPARC32 |
181 | default 64 if SPARC64 |
182 | |
183 | source kernel/Kconfig.hz |
184 | |
185 | config RWSEM_GENERIC_SPINLOCK |
186 | bool |
187 | default y if SPARC32 |
188 | |
189 | config RWSEM_XCHGADD_ALGORITHM |
190 | bool |
191 | default y if SPARC64 |
192 | |
193 | config GENERIC_FIND_NEXT_BIT |
194 | bool |
195 | default y |
196 | |
197 | config GENERIC_HWEIGHT |
198 | bool |
199 | default y if !ULTRA_HAS_POPULATION_COUNT |
200 | |
201 | config GENERIC_CALIBRATE_DELAY |
202 | bool |
203 | default y |
204 | |
205 | config ARCH_MAY_HAVE_PC_FDC |
206 | bool |
207 | default y |
208 | |
209 | config EMULATED_CMPXCHG |
210 | bool |
211 | default y if SPARC32 |
212 | help |
213 | Sparc32 does not have a CAS instruction like sparc64. cmpxchg() |
214 | is emulated, and therefore it is not completely atomic. |
215 | |
216 | # Makefile helpers |
217 | config SPARC32_SMP |
218 | bool |
219 | default y |
220 | depends on SPARC32 && SMP |
221 | |
222 | config SPARC64_SMP |
223 | bool |
224 | default y |
225 | depends on SPARC64 && SMP |
226 | |
227 | config EARLYFB |
228 | bool "Support for early boot text console" |
229 | default y |
230 | depends on SPARC64 |
231 | help |
232 | Say Y here to enable a faster early framebuffer boot console. |
233 | |
234 | choice |
235 | prompt "Kernel page size" if SPARC64 |
236 | default SPARC64_PAGE_SIZE_8KB |
237 | |
238 | config SPARC64_PAGE_SIZE_8KB |
239 | bool "8KB" |
240 | help |
241 | This lets you select the page size of the kernel. |
242 | |
243 | 8KB and 64KB work quite well, since SPARC ELF sections |
244 | provide for up to 64KB alignment. |
245 | |
246 | If you don't know what to do, choose 8KB. |
247 | |
248 | config SPARC64_PAGE_SIZE_64KB |
249 | bool "64KB" |
250 | |
251 | endchoice |
252 | |
253 | config SECCOMP |
254 | bool "Enable seccomp to safely compute untrusted bytecode" |
255 | depends on SPARC64 && PROC_FS |
256 | default y |
257 | help |
258 | This kernel feature is useful for number crunching applications |
259 | that may need to compute untrusted bytecode during their |
260 | execution. By using pipes or other transports made available to |
261 | the process as file descriptors supporting the read/write |
262 | syscalls, it's possible to isolate those applications in |
263 | their own address space using seccomp. Once seccomp is |
264 | enabled via /proc/<pid>/seccomp, it cannot be disabled |
265 | and the task is only allowed to execute a few safe syscalls |
266 | defined by each seccomp mode. |
267 | |
268 | If unsure, say Y. Only embedded should say N here. |
269 | |
270 | config HOTPLUG_CPU |
271 | bool "Support for hot-pluggable CPUs" |
272 | depends on SPARC64 && SMP |
273 | select HOTPLUG |
274 | help |
275 | Say Y here to experiment with turning CPUs off and on. CPUs |
276 | can be controlled through /sys/devices/system/cpu/cpu#. |
277 | Say N if you want to disable CPU hotplug. |
278 | |
279 | config GENERIC_HARDIRQS |
280 | bool |
281 | default y if SPARC64 |
282 | |
283 | source "kernel/time/Kconfig" |
284 | |
285 | if SPARC64 |
286 | source "drivers/cpufreq/Kconfig" |
287 | |
288 | config US3_FREQ |
289 | tristate "UltraSPARC-III CPU Frequency driver" |
290 | depends on CPU_FREQ |
291 | select CPU_FREQ_TABLE |
292 | help |
293 | This adds the CPUFreq driver for UltraSPARC-III processors. |
294 | |
295 | For details, take a look at <file:Documentation/cpu-freq>. |
296 | |
297 | If in doubt, say N. |
298 | |
299 | config US2E_FREQ |
300 | tristate "UltraSPARC-IIe CPU Frequency driver" |
301 | depends on CPU_FREQ |
302 | select CPU_FREQ_TABLE |
303 | help |
304 | This adds the CPUFreq driver for UltraSPARC-IIe processors. |
305 | |
306 | For details, take a look at <file:Documentation/cpu-freq>. |
307 | |
308 | If in doubt, say N. |
309 | |
310 | endif |
311 | |
312 | config US3_MC |
313 | tristate "UltraSPARC-III Memory Controller driver" |
314 | depends on SPARC64 |
315 | default y |
316 | help |
317 | This adds a driver for the UltraSPARC-III memory controller. |
318 | Loading this driver allows exact mnemonic strings to be |
319 | printed in the event of a memory error, so that the faulty DIMM |
320 | on the motherboard can be matched to the error. |
321 | |
322 | If in doubt, say Y, as this information can be very useful. |
323 | |
324 | # Global things across all Sun machines. |
325 | config GENERIC_LOCKBREAK |
326 | bool |
327 | default y |
328 | depends on SPARC64 && SMP && PREEMPT |
329 | |
330 | choice |
331 | prompt "SPARC64 Huge TLB Page Size" |
332 | depends on SPARC64 && HUGETLB_PAGE |
333 | default HUGETLB_PAGE_SIZE_4MB |
334 | |
335 | config HUGETLB_PAGE_SIZE_4MB |
336 | bool "4MB" |
337 | |
338 | config HUGETLB_PAGE_SIZE_512K |
339 | bool "512K" |
340 | |
341 | config HUGETLB_PAGE_SIZE_64K |
342 | depends on !SPARC64_PAGE_SIZE_64KB |
343 | bool "64K" |
344 | |
345 | endchoice |
346 | |
347 | config NUMA |
348 | bool "NUMA support" |
349 | depends on SPARC64 && SMP |
350 | |
351 | config NODES_SHIFT |
352 | int |
353 | default "4" |
354 | depends on NEED_MULTIPLE_NODES |
355 | |
356 | # Some NUMA nodes have memory ranges that span |
357 | # other nodes. Even though a pfn is valid and |
358 | # between a node's start and end pfns, it may not |
359 | # reside on that node. See memmap_init_zone() |
360 | # for details. |
361 | config NODES_SPAN_OTHER_NODES |
362 | def_bool y |
363 | depends on NEED_MULTIPLE_NODES |
364 | |
365 | config ARCH_POPULATES_NODE_MAP |
366 | def_bool y if SPARC64 |
367 | |
368 | config ARCH_SELECT_MEMORY_MODEL |
369 | def_bool y if SPARC64 |
370 | |
371 | config ARCH_SPARSEMEM_ENABLE |
372 | def_bool y if SPARC64 |
373 | select SPARSEMEM_VMEMMAP_ENABLE |
374 | |
375 | config ARCH_SPARSEMEM_DEFAULT |
376 | def_bool y if SPARC64 |
377 | |
378 | source "mm/Kconfig" |
379 | |
380 | config SCHED_SMT |
381 | bool "SMT (Hyperthreading) scheduler support" |
382 | depends on SPARC64 && SMP |
383 | default y |
384 | help |
385 | SMT scheduler support improves the CPU scheduler's decision making |
386 | when dealing with SPARC cpus at a cost of slightly increased overhead |
387 | in some places. If unsure say N here. |
388 | |
389 | config SCHED_MC |
390 | bool "Multi-core scheduler support" |
391 | depends on SPARC64 && SMP |
392 | default y |
393 | help |
394 | Multi-core scheduler support improves the CPU scheduler's decision |
395 | making when dealing with multi-core CPU chips at a cost of slightly |
396 | increased overhead in some places. If unsure say N here. |
397 | |
398 | if SPARC64 |
399 | source "kernel/Kconfig.preempt" |
400 | endif |
401 | |
402 | config CMDLINE_BOOL |
403 | bool "Default bootloader kernel arguments" |
404 | depends on SPARC64 |
405 | |
406 | config CMDLINE |
407 | string "Initial kernel command string" |
408 | depends on CMDLINE_BOOL |
409 | default "console=ttyS0,9600 root=/dev/sda1" |
410 | help |
411 | Say Y here if you want to be able to pass default arguments to |
412 | the kernel. This will be overridden by the bootloader, if you |
413 | use one (such as SILO). This is most useful if you want to boot |
414 | a kernel from TFTP, and want default options to be available |
415 | with having them passed on the command line. |
416 | |
417 | NOTE: This option WILL override the PROM bootargs setting! |
418 | |
419 | config SUN_PM |
420 | bool |
421 | default y if SPARC32 |
422 | help |
423 | Enable power management and CPU standby features on supported |
424 | SPARC platforms. |
425 | |
426 | config SPARC_LED |
427 | tristate "Sun4m LED driver" |
428 | depends on SPARC32 |
429 | help |
430 | This driver toggles the front-panel LED on sun4m systems |
431 | in a user-specifiable manner. Its state can be probed |
432 | by reading /proc/led and its blinking mode can be changed |
433 | via writes to /proc/led |
434 | |
435 | config SERIAL_CONSOLE |
436 | bool |
437 | depends on SPARC32 |
438 | default y |
439 | ---help--- |
440 | If you say Y here, it will be possible to use a serial port as the |
441 | system console (the system console is the device which receives all |
442 | kernel messages and warnings and which allows logins in single user |
443 | mode). This could be useful if some terminal or printer is connected |
444 | to that serial port. |
445 | |
446 | Even if you say Y here, the currently visible virtual console |
447 | (/dev/tty0) will still be used as the system console by default, but |
448 | you can alter that using a kernel command line option such as |
449 | "console=ttyS1". (Try "man bootparam" or see the documentation of |
450 | your boot loader (silo) about how to pass options to the kernel at |
451 | boot time.) |
452 | |
453 | If you don't have a graphics card installed and you say Y here, the |
454 | kernel will automatically use the first serial line, /dev/ttyS0, as |
455 | system console. |
456 | |
457 | If unsure, say N. |
458 | |
459 | config SPARC_LEON |
460 | bool "Sparc Leon processor family" |
461 | depends on SPARC32 |
462 | ---help--- |
463 | If you say Y here if you are running on a SPARC-LEON processor. |
464 | The LEON processor is a synthesizable VHDL model of the |
465 | SPARC-v8 standard. LEON is part of the GRLIB collection of |
466 | IP cores that are distributed under GPL. GRLIB can be downloaded |
467 | from www.gaisler.com. You can download a sparc-linux cross-compilation |
468 | toolchain at www.gaisler.com. |
469 | |
470 | endmenu |
471 | |
472 | menu "Bus options (PCI etc.)" |
473 | config SBUS |
474 | bool |
475 | default y |
476 | |
477 | config SBUSCHAR |
478 | bool |
479 | default y |
480 | |
481 | config SUN_LDOMS |
482 | bool "Sun Logical Domains support" |
483 | depends on SPARC64 |
484 | help |
485 | Say Y here is you want to support virtual devices via |
486 | Logical Domains. |
487 | |
488 | config PCI |
489 | bool "Support for PCI and PS/2 keyboard/mouse" |
490 | help |
491 | Find out whether your system includes a PCI bus. PCI is the name of |
492 | a bus system, i.e. the way the CPU talks to the other stuff inside |
493 | your box. If you say Y here, the kernel will include drivers and |
494 | infrastructure code to support PCI bus devices. |
495 | |
496 | CONFIG_PCI is needed for all JavaStation's (including MrCoffee), |
497 | CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC. |
498 | All of these platforms are extremely obscure, so say N if unsure. |
499 | |
500 | config PCI_DOMAINS |
501 | def_bool PCI if SPARC64 |
502 | |
503 | config PCI_SYSCALL |
504 | def_bool PCI |
505 | |
506 | source "drivers/pci/Kconfig" |
507 | |
508 | source "drivers/pcmcia/Kconfig" |
509 | |
510 | config SUN_OPENPROMFS |
511 | tristate "Openprom tree appears in /proc/openprom" |
512 | help |
513 | If you say Y, the OpenPROM device tree will be available as a |
514 | virtual file system, which you can mount to /proc/openprom by "mount |
515 | -t openpromfs none /proc/openprom". |
516 | |
517 | To compile the /proc/openprom support as a module, choose M here: the |
518 | module will be called openpromfs. |
519 | |
520 | Only choose N if you know in advance that you will not need to modify |
521 | OpenPROM settings on the running system. |
522 | |
523 | # Makefile helpers |
524 | config SPARC32_PCI |
525 | bool |
526 | default y |
527 | depends on SPARC32 && PCI |
528 | |
529 | config SPARC64_PCI |
530 | bool |
531 | default y |
532 | depends on SPARC64 && PCI |
533 | |
534 | endmenu |
535 | |
536 | menu "Executable file formats" |
537 | |
538 | source "fs/Kconfig.binfmt" |
539 | |
540 | config COMPAT |
541 | bool |
542 | depends on SPARC64 |
543 | default y |
544 | select COMPAT_BINFMT_ELF |
545 | |
546 | config SYSVIPC_COMPAT |
547 | bool |
548 | depends on COMPAT && SYSVIPC |
549 | default y |
550 | |
551 | endmenu |
552 | |
553 | source "net/Kconfig" |
554 | |
555 | source "drivers/Kconfig" |
556 | |
557 | source "drivers/sbus/char/Kconfig" |
558 | |
559 | source "fs/Kconfig" |
560 | |
561 | source "arch/sparc/Kconfig.debug" |
562 | |
563 | source "security/Kconfig" |
564 | |
565 | source "crypto/Kconfig" |
566 | |
567 | source "lib/Kconfig" |
568 |
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