Root/
1 | # |
2 | # For a description of the syntax of this configuration file, |
3 | # see Documentation/kbuild/kconfig-language.txt. |
4 | # |
5 | |
6 | mainmenu "Linux/SuperH Kernel Configuration" |
7 | |
8 | config SUPERH |
9 | def_bool y |
10 | select EMBEDDED |
11 | select HAVE_CLK |
12 | select HAVE_IDE |
13 | select HAVE_LMB |
14 | select HAVE_OPROFILE |
15 | select HAVE_GENERIC_DMA_COHERENT |
16 | select HAVE_ARCH_TRACEHOOK |
17 | select HAVE_DMA_API_DEBUG |
18 | select HAVE_DMA_ATTRS |
19 | select HAVE_PERF_EVENTS |
20 | select PERF_USE_VMALLOC |
21 | select HAVE_KERNEL_GZIP |
22 | select HAVE_KERNEL_BZIP2 |
23 | select HAVE_KERNEL_LZMA |
24 | select HAVE_KERNEL_LZO |
25 | select HAVE_SYSCALL_TRACEPOINTS |
26 | select RTC_LIB |
27 | select GENERIC_ATOMIC64 |
28 | help |
29 | The SuperH is a RISC processor targeted for use in embedded systems |
30 | and consumer electronics; it was also used in the Sega Dreamcast |
31 | gaming console. The SuperH port has a home page at |
32 | <http://www.linux-sh.org/>. |
33 | |
34 | config SUPERH32 |
35 | def_bool ARCH = "sh" |
36 | select HAVE_KPROBES |
37 | select HAVE_KRETPROBES |
38 | select HAVE_IOREMAP_PROT if MMU && !X2TLB |
39 | select HAVE_FUNCTION_TRACER |
40 | select HAVE_FTRACE_MCOUNT_RECORD |
41 | select HAVE_DYNAMIC_FTRACE |
42 | select HAVE_FUNCTION_TRACE_MCOUNT_TEST |
43 | select HAVE_FTRACE_NMI_ENTER if DYNAMIC_FTRACE |
44 | select HAVE_FUNCTION_GRAPH_TRACER |
45 | select HAVE_ARCH_KGDB |
46 | select HAVE_HW_BREAKPOINT |
47 | select PERF_EVENTS if HAVE_HW_BREAKPOINT |
48 | select ARCH_HIBERNATION_POSSIBLE if MMU |
49 | |
50 | config SUPERH64 |
51 | def_bool ARCH = "sh64" |
52 | |
53 | config ARCH_DEFCONFIG |
54 | string |
55 | default "arch/sh/configs/shx3_defconfig" if SUPERH32 |
56 | default "arch/sh/configs/cayman_defconfig" if SUPERH64 |
57 | |
58 | config RWSEM_GENERIC_SPINLOCK |
59 | def_bool y |
60 | |
61 | config RWSEM_XCHGADD_ALGORITHM |
62 | bool |
63 | |
64 | config GENERIC_BUG |
65 | def_bool y |
66 | depends on BUG && SUPERH32 |
67 | |
68 | config GENERIC_CSUM |
69 | def_bool y |
70 | depends on SUPERH64 |
71 | |
72 | config GENERIC_FIND_NEXT_BIT |
73 | def_bool y |
74 | |
75 | config GENERIC_HWEIGHT |
76 | def_bool y |
77 | |
78 | config GENERIC_HARDIRQS |
79 | def_bool y |
80 | |
81 | config GENERIC_HARDIRQS_NO__DO_IRQ |
82 | def_bool y |
83 | |
84 | config IRQ_PER_CPU |
85 | def_bool y |
86 | |
87 | config SPARSE_IRQ |
88 | def_bool y |
89 | depends on SUPERH32 |
90 | |
91 | config GENERIC_GPIO |
92 | def_bool n |
93 | |
94 | config GENERIC_CALIBRATE_DELAY |
95 | bool |
96 | |
97 | config GENERIC_IOMAP |
98 | bool |
99 | |
100 | config GENERIC_TIME |
101 | def_bool y |
102 | |
103 | config GENERIC_CLOCKEVENTS |
104 | def_bool y |
105 | |
106 | config GENERIC_CLOCKEVENTS_BROADCAST |
107 | bool |
108 | |
109 | config GENERIC_CMOS_UPDATE |
110 | def_bool y |
111 | depends on SH_SH03 || SH_DREAMCAST |
112 | |
113 | config GENERIC_LOCKBREAK |
114 | def_bool y |
115 | depends on SMP && PREEMPT |
116 | |
117 | config SYS_SUPPORTS_PM |
118 | bool |
119 | depends on !SMP |
120 | |
121 | config ARCH_SUSPEND_POSSIBLE |
122 | def_bool n |
123 | |
124 | config ARCH_HIBERNATION_POSSIBLE |
125 | def_bool n |
126 | |
127 | config SYS_SUPPORTS_APM_EMULATION |
128 | bool |
129 | select ARCH_SUSPEND_POSSIBLE |
130 | |
131 | config SYS_SUPPORTS_HUGETLBFS |
132 | bool |
133 | |
134 | config SYS_SUPPORTS_SMP |
135 | bool |
136 | |
137 | config SYS_SUPPORTS_NUMA |
138 | bool |
139 | |
140 | config SYS_SUPPORTS_PCI |
141 | bool |
142 | |
143 | config SYS_SUPPORTS_CMT |
144 | bool |
145 | |
146 | config SYS_SUPPORTS_MTU2 |
147 | bool |
148 | |
149 | config SYS_SUPPORTS_TMU |
150 | bool |
151 | |
152 | config STACKTRACE_SUPPORT |
153 | def_bool y |
154 | |
155 | config LOCKDEP_SUPPORT |
156 | def_bool y |
157 | |
158 | config HAVE_LATENCYTOP_SUPPORT |
159 | def_bool y |
160 | depends on !SMP |
161 | |
162 | config ARCH_HAS_ILOG2_U32 |
163 | def_bool n |
164 | |
165 | config ARCH_HAS_ILOG2_U64 |
166 | def_bool n |
167 | |
168 | config ARCH_NO_VIRT_TO_BUS |
169 | def_bool y |
170 | |
171 | config ARCH_HAS_DEFAULT_IDLE |
172 | def_bool y |
173 | |
174 | config ARCH_HAS_CPU_IDLE_WAIT |
175 | def_bool y |
176 | |
177 | config IO_TRAPPED |
178 | bool |
179 | |
180 | config DMA_COHERENT |
181 | bool |
182 | |
183 | config DMA_NONCOHERENT |
184 | def_bool !DMA_COHERENT |
185 | |
186 | config NEED_DMA_MAP_STATE |
187 | def_bool DMA_NONCOHERENT |
188 | |
189 | source "init/Kconfig" |
190 | |
191 | source "kernel/Kconfig.freezer" |
192 | |
193 | menu "System type" |
194 | |
195 | # |
196 | # Processor families |
197 | # |
198 | config CPU_SH2 |
199 | bool |
200 | |
201 | config CPU_SH2A |
202 | bool |
203 | select CPU_SH2 |
204 | |
205 | config CPU_SH3 |
206 | bool |
207 | select CPU_HAS_INTEVT |
208 | select CPU_HAS_SR_RB |
209 | select SYS_SUPPORTS_TMU |
210 | |
211 | config CPU_SH4 |
212 | bool |
213 | select CPU_HAS_INTEVT |
214 | select CPU_HAS_SR_RB |
215 | select CPU_HAS_FPU if !CPU_SH4AL_DSP |
216 | select SYS_SUPPORTS_TMU |
217 | select SYS_SUPPORTS_HUGETLBFS if MMU |
218 | |
219 | config CPU_SH4A |
220 | bool |
221 | select CPU_SH4 |
222 | |
223 | config CPU_SH4AL_DSP |
224 | bool |
225 | select CPU_SH4A |
226 | select CPU_HAS_DSP |
227 | |
228 | config CPU_SH5 |
229 | bool |
230 | select CPU_HAS_FPU |
231 | select SYS_SUPPORTS_TMU |
232 | select SYS_SUPPORTS_HUGETLBFS if MMU |
233 | |
234 | config CPU_SHX2 |
235 | bool |
236 | |
237 | config CPU_SHX3 |
238 | bool |
239 | select DMA_COHERENT |
240 | |
241 | config ARCH_SHMOBILE |
242 | bool |
243 | select ARCH_SUSPEND_POSSIBLE |
244 | select PM |
245 | select PM_RUNTIME |
246 | |
247 | if SUPERH32 |
248 | |
249 | choice |
250 | prompt "Processor sub-type selection" |
251 | |
252 | # |
253 | # Processor subtypes |
254 | # |
255 | |
256 | # SH-2 Processor Support |
257 | |
258 | config CPU_SUBTYPE_SH7619 |
259 | bool "Support SH7619 processor" |
260 | select CPU_SH2 |
261 | select SYS_SUPPORTS_CMT |
262 | |
263 | # SH-2A Processor Support |
264 | |
265 | config CPU_SUBTYPE_SH7201 |
266 | bool "Support SH7201 processor" |
267 | select CPU_SH2A |
268 | select CPU_HAS_FPU |
269 | select SYS_SUPPORTS_MTU2 |
270 | |
271 | config CPU_SUBTYPE_SH7203 |
272 | bool "Support SH7203 processor" |
273 | select CPU_SH2A |
274 | select CPU_HAS_FPU |
275 | select SYS_SUPPORTS_CMT |
276 | select SYS_SUPPORTS_MTU2 |
277 | |
278 | config CPU_SUBTYPE_SH7206 |
279 | bool "Support SH7206 processor" |
280 | select CPU_SH2A |
281 | select SYS_SUPPORTS_CMT |
282 | select SYS_SUPPORTS_MTU2 |
283 | |
284 | config CPU_SUBTYPE_SH7263 |
285 | bool "Support SH7263 processor" |
286 | select CPU_SH2A |
287 | select CPU_HAS_FPU |
288 | select SYS_SUPPORTS_CMT |
289 | select SYS_SUPPORTS_MTU2 |
290 | |
291 | config CPU_SUBTYPE_MXG |
292 | bool "Support MX-G processor" |
293 | select CPU_SH2A |
294 | select SYS_SUPPORTS_MTU2 |
295 | help |
296 | Select MX-G if running on an R8A03022BG part. |
297 | |
298 | # SH-3 Processor Support |
299 | |
300 | config CPU_SUBTYPE_SH7705 |
301 | bool "Support SH7705 processor" |
302 | select CPU_SH3 |
303 | |
304 | config CPU_SUBTYPE_SH7706 |
305 | bool "Support SH7706 processor" |
306 | select CPU_SH3 |
307 | help |
308 | Select SH7706 if you have a 133 Mhz SH-3 HD6417706 CPU. |
309 | |
310 | config CPU_SUBTYPE_SH7707 |
311 | bool "Support SH7707 processor" |
312 | select CPU_SH3 |
313 | help |
314 | Select SH7707 if you have a 60 Mhz SH-3 HD6417707 CPU. |
315 | |
316 | config CPU_SUBTYPE_SH7708 |
317 | bool "Support SH7708 processor" |
318 | select CPU_SH3 |
319 | help |
320 | Select SH7708 if you have a 60 Mhz SH-3 HD6417708S or |
321 | if you have a 100 Mhz SH-3 HD6417708R CPU. |
322 | |
323 | config CPU_SUBTYPE_SH7709 |
324 | bool "Support SH7709 processor" |
325 | select CPU_SH3 |
326 | help |
327 | Select SH7709 if you have a 80 Mhz SH-3 HD6417709 CPU. |
328 | |
329 | config CPU_SUBTYPE_SH7710 |
330 | bool "Support SH7710 processor" |
331 | select CPU_SH3 |
332 | select CPU_HAS_DSP |
333 | help |
334 | Select SH7710 if you have a SH3-DSP SH7710 CPU. |
335 | |
336 | config CPU_SUBTYPE_SH7712 |
337 | bool "Support SH7712 processor" |
338 | select CPU_SH3 |
339 | select CPU_HAS_DSP |
340 | help |
341 | Select SH7712 if you have a SH3-DSP SH7712 CPU. |
342 | |
343 | config CPU_SUBTYPE_SH7720 |
344 | bool "Support SH7720 processor" |
345 | select CPU_SH3 |
346 | select CPU_HAS_DSP |
347 | select SYS_SUPPORTS_CMT |
348 | help |
349 | Select SH7720 if you have a SH3-DSP SH7720 CPU. |
350 | |
351 | config CPU_SUBTYPE_SH7721 |
352 | bool "Support SH7721 processor" |
353 | select CPU_SH3 |
354 | select CPU_HAS_DSP |
355 | select SYS_SUPPORTS_CMT |
356 | help |
357 | Select SH7721 if you have a SH3-DSP SH7721 CPU. |
358 | |
359 | # SH-4 Processor Support |
360 | |
361 | config CPU_SUBTYPE_SH7750 |
362 | bool "Support SH7750 processor" |
363 | select CPU_SH4 |
364 | help |
365 | Select SH7750 if you have a 200 Mhz SH-4 HD6417750 CPU. |
366 | |
367 | config CPU_SUBTYPE_SH7091 |
368 | bool "Support SH7091 processor" |
369 | select CPU_SH4 |
370 | help |
371 | Select SH7091 if you have an SH-4 based Sega device (such as |
372 | the Dreamcast, Naomi, and Naomi 2). |
373 | |
374 | config CPU_SUBTYPE_SH7750R |
375 | bool "Support SH7750R processor" |
376 | select CPU_SH4 |
377 | |
378 | config CPU_SUBTYPE_SH7750S |
379 | bool "Support SH7750S processor" |
380 | select CPU_SH4 |
381 | |
382 | config CPU_SUBTYPE_SH7751 |
383 | bool "Support SH7751 processor" |
384 | select CPU_SH4 |
385 | help |
386 | Select SH7751 if you have a 166 Mhz SH-4 HD6417751 CPU, |
387 | or if you have a HD6417751R CPU. |
388 | |
389 | config CPU_SUBTYPE_SH7751R |
390 | bool "Support SH7751R processor" |
391 | select CPU_SH4 |
392 | |
393 | config CPU_SUBTYPE_SH7760 |
394 | bool "Support SH7760 processor" |
395 | select CPU_SH4 |
396 | |
397 | config CPU_SUBTYPE_SH4_202 |
398 | bool "Support SH4-202 processor" |
399 | select CPU_SH4 |
400 | |
401 | # SH-4A Processor Support |
402 | |
403 | config CPU_SUBTYPE_SH7723 |
404 | bool "Support SH7723 processor" |
405 | select CPU_SH4A |
406 | select CPU_SHX2 |
407 | select ARCH_SHMOBILE |
408 | select ARCH_SPARSEMEM_ENABLE |
409 | select SYS_SUPPORTS_CMT |
410 | help |
411 | Select SH7723 if you have an SH-MobileR2 CPU. |
412 | |
413 | config CPU_SUBTYPE_SH7724 |
414 | bool "Support SH7724 processor" |
415 | select CPU_SH4A |
416 | select CPU_SHX2 |
417 | select ARCH_SHMOBILE |
418 | select ARCH_SPARSEMEM_ENABLE |
419 | select SYS_SUPPORTS_CMT |
420 | help |
421 | Select SH7724 if you have an SH-MobileR2R CPU. |
422 | |
423 | config CPU_SUBTYPE_SH7757 |
424 | bool "Support SH7757 processor" |
425 | select CPU_SH4A |
426 | select CPU_SHX2 |
427 | help |
428 | Select SH7757 if you have a SH4A SH7757 CPU. |
429 | |
430 | config CPU_SUBTYPE_SH7763 |
431 | bool "Support SH7763 processor" |
432 | select CPU_SH4A |
433 | help |
434 | Select SH7763 if you have a SH4A SH7763(R5S77631) CPU. |
435 | |
436 | config CPU_SUBTYPE_SH7770 |
437 | bool "Support SH7770 processor" |
438 | select CPU_SH4A |
439 | |
440 | config CPU_SUBTYPE_SH7780 |
441 | bool "Support SH7780 processor" |
442 | select CPU_SH4A |
443 | |
444 | config CPU_SUBTYPE_SH7785 |
445 | bool "Support SH7785 processor" |
446 | select CPU_SH4A |
447 | select CPU_SHX2 |
448 | select ARCH_SPARSEMEM_ENABLE |
449 | select SYS_SUPPORTS_NUMA |
450 | |
451 | config CPU_SUBTYPE_SH7786 |
452 | bool "Support SH7786 processor" |
453 | select CPU_SH4A |
454 | select CPU_SHX3 |
455 | select CPU_HAS_PTEAEX |
456 | select ARCH_SPARSEMEM_ENABLE |
457 | select SYS_SUPPORTS_NUMA |
458 | select SYS_SUPPORTS_SMP |
459 | select GENERIC_CLOCKEVENTS_BROADCAST if SMP |
460 | |
461 | config CPU_SUBTYPE_SHX3 |
462 | bool "Support SH-X3 processor" |
463 | select CPU_SH4A |
464 | select CPU_SHX3 |
465 | select ARCH_SPARSEMEM_ENABLE |
466 | select SYS_SUPPORTS_NUMA |
467 | select SYS_SUPPORTS_SMP |
468 | select GENERIC_CLOCKEVENTS_BROADCAST if SMP |
469 | |
470 | # SH4AL-DSP Processor Support |
471 | |
472 | config CPU_SUBTYPE_SH7343 |
473 | bool "Support SH7343 processor" |
474 | select CPU_SH4AL_DSP |
475 | select ARCH_SHMOBILE |
476 | select SYS_SUPPORTS_CMT |
477 | |
478 | config CPU_SUBTYPE_SH7722 |
479 | bool "Support SH7722 processor" |
480 | select CPU_SH4AL_DSP |
481 | select CPU_SHX2 |
482 | select ARCH_SHMOBILE |
483 | select ARCH_SPARSEMEM_ENABLE |
484 | select SYS_SUPPORTS_NUMA |
485 | select SYS_SUPPORTS_CMT |
486 | |
487 | config CPU_SUBTYPE_SH7366 |
488 | bool "Support SH7366 processor" |
489 | select CPU_SH4AL_DSP |
490 | select CPU_SHX2 |
491 | select ARCH_SHMOBILE |
492 | select ARCH_SPARSEMEM_ENABLE |
493 | select SYS_SUPPORTS_NUMA |
494 | select SYS_SUPPORTS_CMT |
495 | |
496 | endchoice |
497 | |
498 | endif |
499 | |
500 | if SUPERH64 |
501 | |
502 | choice |
503 | prompt "Processor sub-type selection" |
504 | |
505 | # SH-5 Processor Support |
506 | |
507 | config CPU_SUBTYPE_SH5_101 |
508 | bool "Support SH5-101 processor" |
509 | select CPU_SH5 |
510 | |
511 | config CPU_SUBTYPE_SH5_103 |
512 | bool "Support SH5-103 processor" |
513 | select CPU_SH5 |
514 | |
515 | endchoice |
516 | |
517 | endif |
518 | |
519 | source "arch/sh/mm/Kconfig" |
520 | |
521 | source "arch/sh/Kconfig.cpu" |
522 | |
523 | source "arch/sh/boards/Kconfig" |
524 | |
525 | menu "Timer and clock configuration" |
526 | |
527 | config SH_TIMER_TMU |
528 | bool "TMU timer driver" |
529 | depends on SYS_SUPPORTS_TMU |
530 | default y |
531 | help |
532 | This enables the build of the TMU timer driver. |
533 | |
534 | config SH_TIMER_CMT |
535 | bool "CMT timer driver" |
536 | depends on SYS_SUPPORTS_CMT |
537 | default y |
538 | help |
539 | This enables build of the CMT timer driver. |
540 | |
541 | config SH_TIMER_MTU2 |
542 | bool "MTU2 timer driver" |
543 | depends on SYS_SUPPORTS_MTU2 |
544 | default y |
545 | help |
546 | This enables build of the MTU2 timer driver. |
547 | |
548 | config SH_PCLK_FREQ |
549 | int "Peripheral clock frequency (in Hz)" |
550 | depends on SH_CLK_CPG_LEGACY |
551 | default "31250000" if CPU_SUBTYPE_SH7619 |
552 | default "33333333" if CPU_SUBTYPE_SH7770 || \ |
553 | CPU_SUBTYPE_SH7760 || \ |
554 | CPU_SUBTYPE_SH7705 || \ |
555 | CPU_SUBTYPE_SH7203 || \ |
556 | CPU_SUBTYPE_SH7206 || \ |
557 | CPU_SUBTYPE_SH7263 || \ |
558 | CPU_SUBTYPE_MXG |
559 | default "60000000" if CPU_SUBTYPE_SH7751 || CPU_SUBTYPE_SH7751R |
560 | default "66000000" if CPU_SUBTYPE_SH4_202 |
561 | default "50000000" |
562 | help |
563 | This option is used to specify the peripheral clock frequency. |
564 | This is necessary for determining the reference clock value on |
565 | platforms lacking an RTC. |
566 | |
567 | config SH_CLK_CPG |
568 | def_bool y |
569 | |
570 | config SH_CLK_CPG_LEGACY |
571 | depends on SH_CLK_CPG |
572 | def_bool y if !CPU_SUBTYPE_SH7785 && !ARCH_SHMOBILE && \ |
573 | !CPU_SUBTYPE_SH7786 |
574 | |
575 | config SH_CLK_MD |
576 | int "CPU Mode Pin Setting" |
577 | depends on CPU_SH2 |
578 | default 6 if CPU_SUBTYPE_SH7206 |
579 | default 5 if CPU_SUBTYPE_SH7619 |
580 | default 0 |
581 | help |
582 | MD2 - MD0 pin setting. |
583 | |
584 | source "kernel/time/Kconfig" |
585 | |
586 | endmenu |
587 | |
588 | menu "CPU Frequency scaling" |
589 | |
590 | source "drivers/cpufreq/Kconfig" |
591 | |
592 | config SH_CPU_FREQ |
593 | tristate "SuperH CPU Frequency driver" |
594 | depends on CPU_FREQ |
595 | select CPU_FREQ_TABLE |
596 | help |
597 | This adds the cpufreq driver for SuperH. Any CPU that supports |
598 | clock rate rounding through the clock framework can use this |
599 | driver. While it will make the kernel slightly larger, this is |
600 | harmless for CPUs that don't support rate rounding. The driver |
601 | will also generate a notice in the boot log before disabling |
602 | itself if the CPU in question is not capable of rate rounding. |
603 | |
604 | For details, take a look at <file:Documentation/cpu-freq>. |
605 | |
606 | If unsure, say N. |
607 | |
608 | endmenu |
609 | |
610 | source "arch/sh/drivers/Kconfig" |
611 | |
612 | endmenu |
613 | |
614 | menu "Kernel features" |
615 | |
616 | source kernel/Kconfig.hz |
617 | |
618 | config KEXEC |
619 | bool "kexec system call (EXPERIMENTAL)" |
620 | depends on SUPERH32 && EXPERIMENTAL && MMU |
621 | help |
622 | kexec is a system call that implements the ability to shutdown your |
623 | current kernel, and to start another kernel. It is like a reboot |
624 | but it is independent of the system firmware. And like a reboot |
625 | you can start any kernel with it, not just Linux. |
626 | |
627 | The name comes from the similarity to the exec system call. |
628 | |
629 | It is an ongoing process to be certain the hardware in a machine |
630 | is properly shutdown, so do not be surprised if this code does not |
631 | initially work for you. It may help to enable device hotplugging |
632 | support. As of this writing the exact hardware interface is |
633 | strongly in flux, so no good recommendation can be made. |
634 | |
635 | config CRASH_DUMP |
636 | bool "kernel crash dumps (EXPERIMENTAL)" |
637 | depends on SUPERH32 && EXPERIMENTAL |
638 | help |
639 | Generate crash dump after being started by kexec. |
640 | This should be normally only set in special crash dump kernels |
641 | which are loaded in the main kernel with kexec-tools into |
642 | a specially reserved region and then later executed after |
643 | a crash by kdump/kexec. The crash dump kernel must be compiled |
644 | to a memory address not used by the main kernel using |
645 | MEMORY_START. |
646 | |
647 | For more details see Documentation/kdump/kdump.txt |
648 | |
649 | config KEXEC_JUMP |
650 | bool "kexec jump (EXPERIMENTAL)" |
651 | depends on SUPERH32 && KEXEC && HIBERNATION && EXPERIMENTAL |
652 | help |
653 | Jump between original kernel and kexeced kernel and invoke |
654 | code via KEXEC |
655 | |
656 | config SECCOMP |
657 | bool "Enable seccomp to safely compute untrusted bytecode" |
658 | depends on PROC_FS |
659 | help |
660 | This kernel feature is useful for number crunching applications |
661 | that may need to compute untrusted bytecode during their |
662 | execution. By using pipes or other transports made available to |
663 | the process as file descriptors supporting the read/write |
664 | syscalls, it's possible to isolate those applications in |
665 | their own address space using seccomp. Once seccomp is |
666 | enabled via prctl, it cannot be disabled and the task is only |
667 | allowed to execute a few safe syscalls defined by each seccomp |
668 | mode. |
669 | |
670 | If unsure, say N. |
671 | |
672 | config SMP |
673 | bool "Symmetric multi-processing support" |
674 | depends on SYS_SUPPORTS_SMP |
675 | select USE_GENERIC_SMP_HELPERS |
676 | ---help--- |
677 | This enables support for systems with more than one CPU. If you have |
678 | a system with only one CPU, like most personal computers, say N. If |
679 | you have a system with more than one CPU, say Y. |
680 | |
681 | If you say N here, the kernel will run on single and multiprocessor |
682 | machines, but will use only one CPU of a multiprocessor machine. If |
683 | you say Y here, the kernel will run on many, but not all, |
684 | singleprocessor machines. On a singleprocessor machine, the kernel |
685 | will run faster if you say N here. |
686 | |
687 | People using multiprocessor machines who say Y here should also say |
688 | Y to "Enhanced Real Time Clock Support", below. |
689 | |
690 | See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO |
691 | available at <http://www.tldp.org/docs.html#howto>. |
692 | |
693 | If you don't know what to do here, say N. |
694 | |
695 | config NR_CPUS |
696 | int "Maximum number of CPUs (2-32)" |
697 | range 2 32 |
698 | depends on SMP |
699 | default "4" if CPU_SUBTYPE_SHX3 |
700 | default "2" |
701 | help |
702 | This allows you to specify the maximum number of CPUs which this |
703 | kernel will support. The maximum supported value is 32 and the |
704 | minimum value which makes sense is 2. |
705 | |
706 | This is purely to save memory - each supported CPU adds |
707 | approximately eight kilobytes to the kernel image. |
708 | |
709 | source "kernel/Kconfig.preempt" |
710 | |
711 | config GUSA |
712 | def_bool y |
713 | depends on !SMP && SUPERH32 |
714 | help |
715 | This enables support for gUSA (general UserSpace Atomicity). |
716 | This is the default implementation for both UP and non-ll/sc |
717 | CPUs, and is used by the libc, amongst others. |
718 | |
719 | For additional information, design information can be found |
720 | in <http://lc.linux.or.jp/lc2002/papers/niibe0919p.pdf>. |
721 | |
722 | This should only be disabled for special cases where alternate |
723 | atomicity implementations exist. |
724 | |
725 | config GUSA_RB |
726 | bool "Implement atomic operations by roll-back (gRB) (EXPERIMENTAL)" |
727 | depends on GUSA && CPU_SH3 || (CPU_SH4 && !CPU_SH4A) |
728 | help |
729 | Enabling this option will allow the kernel to implement some |
730 | atomic operations using a software implementation of load-locked/ |
731 | store-conditional (LLSC). On machines which do not have hardware |
732 | LLSC, this should be more efficient than the other alternative of |
733 | disabling interrupts around the atomic sequence. |
734 | |
735 | endmenu |
736 | |
737 | menu "Boot options" |
738 | |
739 | config ZERO_PAGE_OFFSET |
740 | hex |
741 | default "0x00010000" if PAGE_SIZE_64KB || SH_RTS7751R2D || \ |
742 | SH_7751_SOLUTION_ENGINE |
743 | default "0x00004000" if PAGE_SIZE_16KB || SH_SH03 |
744 | default "0x00002000" if PAGE_SIZE_8KB |
745 | default "0x00001000" |
746 | help |
747 | This sets the default offset of zero page. |
748 | |
749 | config BOOT_LINK_OFFSET |
750 | hex |
751 | default "0x00210000" if SH_SHMIN |
752 | default "0x00400000" if SH_CAYMAN |
753 | default "0x00810000" if SH_7780_SOLUTION_ENGINE |
754 | default "0x009e0000" if SH_TITAN |
755 | default "0x01800000" if SH_SDK7780 |
756 | default "0x02000000" if SH_EDOSK7760 |
757 | default "0x00800000" |
758 | help |
759 | This option allows you to set the link address offset of the zImage. |
760 | This can be useful if you are on a board which has a small amount of |
761 | memory. |
762 | |
763 | config ENTRY_OFFSET |
764 | hex |
765 | default "0x00001000" if PAGE_SIZE_4KB |
766 | default "0x00002000" if PAGE_SIZE_8KB |
767 | default "0x00004000" if PAGE_SIZE_16KB |
768 | default "0x00010000" if PAGE_SIZE_64KB |
769 | default "0x00000000" |
770 | |
771 | choice |
772 | prompt "Kernel command line" |
773 | optional |
774 | default CMDLINE_OVERWRITE |
775 | help |
776 | Setting this option allows the kernel command line arguments |
777 | to be set. |
778 | |
779 | config CMDLINE_OVERWRITE |
780 | bool "Overwrite bootloader kernel arguments" |
781 | help |
782 | Given string will overwrite any arguments passed in by |
783 | a bootloader. |
784 | |
785 | config CMDLINE_EXTEND |
786 | bool "Extend bootloader kernel arguments" |
787 | help |
788 | Given string will be concatenated with arguments passed in |
789 | by a bootloader. |
790 | |
791 | endchoice |
792 | |
793 | config CMDLINE |
794 | string "Kernel command line arguments string" |
795 | depends on CMDLINE_OVERWRITE || CMDLINE_EXTEND |
796 | default "console=ttySC1,115200" |
797 | |
798 | endmenu |
799 | |
800 | menu "Bus options" |
801 | |
802 | config SUPERHYWAY |
803 | tristate "SuperHyway Bus support" |
804 | depends on CPU_SUBTYPE_SH4_202 |
805 | |
806 | config MAPLE |
807 | bool "Maple Bus support" |
808 | depends on SH_DREAMCAST |
809 | help |
810 | The Maple Bus is SEGA's serial communication bus for peripherals |
811 | on the Dreamcast. Without this bus support you won't be able to |
812 | get your Dreamcast keyboard etc to work, so most users |
813 | probably want to say 'Y' here, unless you are only using the |
814 | Dreamcast with a serial line terminal or a remote network |
815 | connection. |
816 | |
817 | config PCI |
818 | bool "PCI support" |
819 | depends on SYS_SUPPORTS_PCI |
820 | select PCI_DOMAINS |
821 | help |
822 | Find out whether you have a PCI motherboard. PCI is the name of a |
823 | bus system, i.e. the way the CPU talks to the other stuff inside |
824 | your box. If you have PCI, say Y, otherwise N. |
825 | |
826 | config PCI_DOMAINS |
827 | bool |
828 | |
829 | source "drivers/pci/pcie/Kconfig" |
830 | |
831 | source "drivers/pci/Kconfig" |
832 | |
833 | source "drivers/pcmcia/Kconfig" |
834 | |
835 | source "drivers/pci/hotplug/Kconfig" |
836 | |
837 | endmenu |
838 | |
839 | menu "Executable file formats" |
840 | |
841 | source "fs/Kconfig.binfmt" |
842 | |
843 | endmenu |
844 | |
845 | menu "Power management options (EXPERIMENTAL)" |
846 | depends on EXPERIMENTAL |
847 | |
848 | source "kernel/power/Kconfig" |
849 | |
850 | source "drivers/cpuidle/Kconfig" |
851 | |
852 | endmenu |
853 | |
854 | source "net/Kconfig" |
855 | |
856 | source "drivers/Kconfig" |
857 | |
858 | source "fs/Kconfig" |
859 | |
860 | source "arch/sh/Kconfig.debug" |
861 | |
862 | source "security/Kconfig" |
863 | |
864 | source "crypto/Kconfig" |
865 | |
866 | source "lib/Kconfig" |
867 |
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Tags:
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od-2011-09-18
v2.6.34-rc5
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