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