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1da177e4
LT
1#
2# For a description of the syntax of this configuration file,
3# see Documentation/kbuild/kconfig-language.txt.
4#
5
6mainmenu "Linux/SuperH Kernel Configuration"
7
8config SUPERH
ea0e1a9a 9 def_bool y
7a440c95 10 select EMBEDDED
9483a578 11 select HAVE_CLK
ec7748b5 12 select HAVE_IDE
c601a51a 13 select HAVE_LMB
42d4b839 14 select HAVE_OPROFILE
9de90ac2 15 select HAVE_GENERIC_DMA_COHERENT
d7b01f78 16 select HAVE_ARCH_TRACEHOOK
f802d969 17 select HAVE_DMA_API_DEBUG
73c926be 18 select HAVE_DMA_ATTRS
cdd6c482 19 select HAVE_PERF_EVENTS
72f0c137 20 select PERF_USE_VMALLOC
df8ce259 21 select HAVE_KERNEL_GZIP
07e88e1b
PM
22 select HAVE_KERNEL_BZIP2
23 select HAVE_KERNEL_LZMA
c7b16efb 24 select HAVE_KERNEL_LZO
a74f7e04 25 select HAVE_SYSCALL_TRACEPOINTS
6eac1af0 26 select RTC_LIB
f01789c6 27 select GENERIC_ATOMIC64
1da177e4
LT
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
39d28a2d 34config SUPERH32
3cc000b5 35 def_bool ARCH = "sh"
d39f5450
CS
36 select HAVE_KPROBES
37 select HAVE_KRETPROBES
6d63e73d 38 select HAVE_IOREMAP_PROT if MMU && !X2TLB
694f94f2 39 select HAVE_FUNCTION_TRACER
fad57feb
MF
40 select HAVE_FTRACE_MCOUNT_RECORD
41 select HAVE_DYNAMIC_FTRACE
c1340c05 42 select HAVE_FUNCTION_TRACE_MCOUNT_TEST
e4b053d9 43 select HAVE_FTRACE_NMI_ENTER if DYNAMIC_FTRACE
327933f5 44 select HAVE_FUNCTION_GRAPH_TRACER
ab6e570b 45 select HAVE_ARCH_KGDB
6fbfe8d7 46 select HAVE_HW_BREAKPOINT
6c0ee6a4 47 select PERF_EVENTS if HAVE_HW_BREAKPOINT
8dafc346 48 select ARCH_HIBERNATION_POSSIBLE if MMU
ea0e1a9a
PM
49
50config SUPERH64
3cc000b5 51 def_bool ARCH = "sh64"
39d28a2d 52
f42b7e3d
PM
53config ARCH_DEFCONFIG
54 string
55 default "arch/sh/configs/shx3_defconfig" if SUPERH32
56 default "arch/sh/configs/cayman_defconfig" if SUPERH64
57
1da177e4 58config RWSEM_GENERIC_SPINLOCK
d7ef4fb3 59 def_bool y
1da177e4
LT
60
61config RWSEM_XCHGADD_ALGORITHM
62 bool
63
fa691511
PM
64config GENERIC_BUG
65 def_bool y
a82d53ec 66 depends on BUG && SUPERH32
fa691511 67
3767f3f1
PM
68config GENERIC_CSUM
69 def_bool y
70 depends on SUPERH64
71
e2268c71 72config GENERIC_FIND_NEXT_BIT
d7ef4fb3 73 def_bool y
e2268c71
AM
74
75config GENERIC_HWEIGHT
d7ef4fb3 76 def_bool y
e2268c71 77
1da177e4 78config GENERIC_HARDIRQS
d7ef4fb3 79 def_bool y
1da177e4 80
5093c9a4
PM
81config GENERIC_HARDIRQS_NO__DO_IRQ
82 def_bool y
83
2eb2a436
PM
84config IRQ_PER_CPU
85 def_bool y
86
4b842c85
PM
87config SPARSE_IRQ
88 def_bool y
89 depends on SUPERH32
90
2967dab1
MD
91config GENERIC_GPIO
92 def_bool n
93
1da177e4 94config GENERIC_CALIBRATE_DELAY
cf204fa7 95 bool
1da177e4 96
cad82448
PM
97config GENERIC_IOMAP
98 bool
99
45882145 100config GENERIC_TIME
75634311 101 def_bool y
45882145 102
57be2b48 103config GENERIC_CLOCKEVENTS
938edae1 104 def_bool y
57be2b48 105
8c24594d
PM
106config GENERIC_CLOCKEVENTS_BROADCAST
107 bool
108
6d134b9e
PM
109config GENERIC_CMOS_UPDATE
110 def_bool y
111 depends on SH_SH03 || SH_DREAMCAST
112
bdcab87b
PM
113config GENERIC_LOCKBREAK
114 def_bool y
115 depends on SMP && PREEMPT
116
357d5946
PM
117config SYS_SUPPORTS_PM
118 bool
af998a9a
MD
119 depends on !SMP
120
121config ARCH_SUSPEND_POSSIBLE
122 def_bool n
123
124config ARCH_HIBERNATION_POSSIBLE
125 def_bool n
357d5946 126
0a9b0db1
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127config SYS_SUPPORTS_APM_EMULATION
128 bool
af998a9a 129 select ARCH_SUSPEND_POSSIBLE
357d5946 130
ffb4a73d
PM
131config SYS_SUPPORTS_HUGETLBFS
132 bool
133
357d5946
PM
134config SYS_SUPPORTS_SMP
135 bool
136
137config SYS_SUPPORTS_NUMA
138 bool
139
140config SYS_SUPPORTS_PCI
141 bool
0a9b0db1 142
f5ad881b
PM
143config SYS_SUPPORTS_CMT
144 bool
145
d5ed4c2e
MD
146config SYS_SUPPORTS_MTU2
147 bool
148
9570ef20
MD
149config SYS_SUPPORTS_TMU
150 bool
151
afbfb52e 152config STACKTRACE_SUPPORT
d7ef4fb3 153 def_bool y
afbfb52e
PM
154
155config LOCKDEP_SUPPORT
d7ef4fb3 156 def_bool y
afbfb52e 157
5a89f1ad
PM
158config HAVE_LATENCYTOP_SUPPORT
159 def_bool y
160 depends on !SMP
161
f0d1b0b3 162config ARCH_HAS_ILOG2_U32
d7ef4fb3 163 def_bool n
f0d1b0b3
DH
164
165config ARCH_HAS_ILOG2_U64
d7ef4fb3 166 def_bool n
f0d1b0b3 167
e257ad06
PM
168config ARCH_NO_VIRT_TO_BUS
169 def_bool y
170
e869a90e
PM
171config ARCH_HAS_DEFAULT_IDLE
172 def_bool y
173
2e046b94
PM
174config ARCH_HAS_CPU_IDLE_WAIT
175 def_bool y
176
e7cc9a73
MD
177config IO_TRAPPED
178 bool
179
01be5d63
PM
180config DMA_COHERENT
181 bool
182
183config DMA_NONCOHERENT
184 def_bool !DMA_COHERENT
185
5cabbb62
FT
186config NEED_DMA_MAP_STATE
187 def_bool DMA_NONCOHERENT
188
1da177e4
LT
189source "init/Kconfig"
190
dc52ddc0
MH
191source "kernel/Kconfig.freezer"
192
1da177e4
LT
193menu "System type"
194
b5f42db0
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195#
196# Processor families
197#
198config CPU_SH2
199 bool
200
201config CPU_SH2A
202 bool
203 select CPU_SH2
204
205config CPU_SH3
206 bool
207 select CPU_HAS_INTEVT
208 select CPU_HAS_SR_RB
4fa48e17 209 select SYS_SUPPORTS_TMU
b5f42db0
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210
211config CPU_SH4
212 bool
213 select CPU_HAS_INTEVT
214 select CPU_HAS_SR_RB
b5f42db0 215 select CPU_HAS_FPU if !CPU_SH4AL_DSP
4fa48e17 216 select SYS_SUPPORTS_TMU
ffb4a73d 217 select SYS_SUPPORTS_HUGETLBFS if MMU
b5f42db0
PM
218
219config CPU_SH4A
220 bool
221 select CPU_SH4
222
223config CPU_SH4AL_DSP
224 bool
225 select CPU_SH4A
226 select CPU_HAS_DSP
227
ea0e1a9a
PM
228config CPU_SH5
229 bool
230 select CPU_HAS_FPU
add47067 231 select SYS_SUPPORTS_TMU
ffb4a73d 232 select SYS_SUPPORTS_HUGETLBFS if MMU
ea0e1a9a 233
b5f42db0
PM
234config CPU_SHX2
235 bool
236
237config CPU_SHX3
238 bool
01be5d63 239 select DMA_COHERENT
b5f42db0 240
dc65a977
PM
241config ARCH_SHMOBILE
242 bool
77594912 243 select ARCH_SUSPEND_POSSIBLE
ac2c596b
MD
244 select PM
245 select PM_RUNTIME
dc65a977 246
3cc000b5
PM
247if SUPERH32
248
b5f42db0
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249choice
250 prompt "Processor sub-type selection"
251
252#
253# Processor subtypes
254#
255
256# SH-2 Processor Support
257
258config CPU_SUBTYPE_SH7619
259 bool "Support SH7619 processor"
260 select CPU_SH2
f5ad881b 261 select SYS_SUPPORTS_CMT
b5f42db0
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262
263# SH-2A Processor Support
264
2825999e
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265config CPU_SUBTYPE_SH7201
266 bool "Support SH7201 processor"
267 select CPU_SH2A
268 select CPU_HAS_FPU
da107c6e 269 select SYS_SUPPORTS_MTU2
2825999e 270
6d01f510
PM
271config CPU_SUBTYPE_SH7203
272 bool "Support SH7203 processor"
273 select CPU_SH2A
74d99a5e 274 select CPU_HAS_FPU
f5ad881b 275 select SYS_SUPPORTS_CMT
da107c6e 276 select SYS_SUPPORTS_MTU2
6d01f510 277
b5f42db0
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278config CPU_SUBTYPE_SH7206
279 bool "Support SH7206 processor"
280 select CPU_SH2A
f5ad881b 281 select SYS_SUPPORTS_CMT
da107c6e 282 select SYS_SUPPORTS_MTU2
b5f42db0 283
a8f67f4b
PM
284config CPU_SUBTYPE_SH7263
285 bool "Support SH7263 processor"
286 select CPU_SH2A
74d99a5e 287 select CPU_HAS_FPU
f5ad881b 288 select SYS_SUPPORTS_CMT
da107c6e 289 select SYS_SUPPORTS_MTU2
a8f67f4b 290
2ad69908
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291config CPU_SUBTYPE_MXG
292 bool "Support MX-G processor"
293 select CPU_SH2A
da107c6e 294 select SYS_SUPPORTS_MTU2
2ad69908
PM
295 help
296 Select MX-G if running on an R8A03022BG part.
297
b5f42db0
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298# SH-3 Processor Support
299
300config CPU_SUBTYPE_SH7705
301 bool "Support SH7705 processor"
302 select CPU_SH3
303
304config 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
310config 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
316config 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
323config 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
329config 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
336config 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
343config CPU_SUBTYPE_SH7720
344 bool "Support SH7720 processor"
345 select CPU_SH3
346 select CPU_HAS_DSP
2b23a882 347 select SYS_SUPPORTS_CMT
b5f42db0
PM
348 help
349 Select SH7720 if you have a SH3-DSP SH7720 CPU.
350
31a49c4b
YS
351config CPU_SUBTYPE_SH7721
352 bool "Support SH7721 processor"
353 select CPU_SH3
354 select CPU_HAS_DSP
2b23a882 355 select SYS_SUPPORTS_CMT
31a49c4b
YS
356 help
357 Select SH7721 if you have a SH3-DSP SH7721 CPU.
358
b5f42db0
PM
359# SH-4 Processor Support
360
361config 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
367config 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
374config CPU_SUBTYPE_SH7750R
375 bool "Support SH7750R processor"
376 select CPU_SH4
377
378config CPU_SUBTYPE_SH7750S
379 bool "Support SH7750S processor"
380 select CPU_SH4
381
382config 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
389config CPU_SUBTYPE_SH7751R
390 bool "Support SH7751R processor"
391 select CPU_SH4
392
393config CPU_SUBTYPE_SH7760
394 bool "Support SH7760 processor"
395 select CPU_SH4
396
397config CPU_SUBTYPE_SH4_202
398 bool "Support SH4-202 processor"
399 select CPU_SH4
400
401# SH-4A Processor Support
402
178dd0cd
PM
403config CPU_SUBTYPE_SH7723
404 bool "Support SH7723 processor"
405 select CPU_SH4A
406 select CPU_SHX2
dc65a977 407 select ARCH_SHMOBILE
178dd0cd 408 select ARCH_SPARSEMEM_ENABLE
f5ad881b 409 select SYS_SUPPORTS_CMT
178dd0cd
PM
410 help
411 Select SH7723 if you have an SH-MobileR2 CPU.
412
0207a2ef
KM
413config CPU_SUBTYPE_SH7724
414 bool "Support SH7724 processor"
415 select CPU_SH4A
416 select CPU_SHX2
59fe700d 417 select ARCH_SHMOBILE
0207a2ef
KM
418 select ARCH_SPARSEMEM_ENABLE
419 select SYS_SUPPORTS_CMT
420 help
421 Select SH7724 if you have an SH-MobileR2R CPU.
422
c01f0f1a
YS
423config 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
7d740a06
YS
430config 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
b5f42db0
PM
436config CPU_SUBTYPE_SH7770
437 bool "Support SH7770 processor"
438 select CPU_SH4A
439
440config CPU_SUBTYPE_SH7780
441 bool "Support SH7780 processor"
442 select CPU_SH4A
443
444config CPU_SUBTYPE_SH7785
445 bool "Support SH7785 processor"
446 select CPU_SH4A
447 select CPU_SHX2
55ba99eb
KM
448 select ARCH_SPARSEMEM_ENABLE
449 select SYS_SUPPORTS_NUMA
450
451config CPU_SUBTYPE_SH7786
452 bool "Support SH7786 processor"
453 select CPU_SH4A
37042fbd 454 select CPU_SHX3
8263a67e 455 select CPU_HAS_PTEAEX
b5f42db0
PM
456 select ARCH_SPARSEMEM_ENABLE
457 select SYS_SUPPORTS_NUMA
2eb2a436
PM
458 select SYS_SUPPORTS_SMP
459 select GENERIC_CLOCKEVENTS_BROADCAST if SMP
b5f42db0
PM
460
461config 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
5840263e 468 select GENERIC_CLOCKEVENTS_BROADCAST if SMP
b5f42db0
PM
469
470# SH4AL-DSP Processor Support
471
472config CPU_SUBTYPE_SH7343
473 bool "Support SH7343 processor"
474 select CPU_SH4AL_DSP
dc65a977 475 select ARCH_SHMOBILE
f5ad881b 476 select SYS_SUPPORTS_CMT
b5f42db0
PM
477
478config CPU_SUBTYPE_SH7722
479 bool "Support SH7722 processor"
480 select CPU_SH4AL_DSP
481 select CPU_SHX2
dc65a977 482 select ARCH_SHMOBILE
b5f42db0
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483 select ARCH_SPARSEMEM_ENABLE
484 select SYS_SUPPORTS_NUMA
f5ad881b 485 select SYS_SUPPORTS_CMT
9109a30e
MD
486
487config CPU_SUBTYPE_SH7366
488 bool "Support SH7366 processor"
489 select CPU_SH4AL_DSP
490 select CPU_SHX2
dc65a977 491 select ARCH_SHMOBILE
9109a30e
MD
492 select ARCH_SPARSEMEM_ENABLE
493 select SYS_SUPPORTS_NUMA
f5ad881b 494 select SYS_SUPPORTS_CMT
b5f42db0 495
3cc000b5
PM
496endchoice
497
498endif
499
500if SUPERH64
501
502choice
503 prompt "Processor sub-type selection"
504
ea0e1a9a
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505# SH-5 Processor Support
506
507config CPU_SUBTYPE_SH5_101
508 bool "Support SH5-101 processor"
509 select CPU_SH5
510
511config CPU_SUBTYPE_SH5_103
512 bool "Support SH5-103 processor"
8ef97dd7 513 select CPU_SH5
ea0e1a9a 514
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515endchoice
516
3cc000b5
PM
517endif
518
f3d22298 519source "arch/sh/mm/Kconfig"
939a24a6 520
4690bdc7 521source "arch/sh/Kconfig.cpu"
f3d22298 522
939a24a6 523source "arch/sh/boards/Kconfig"
32351a28 524
32351a28
PM
525menu "Timer and clock configuration"
526
9570ef20
MD
527config SH_TIMER_TMU
528 bool "TMU timer driver"
f19900b2 529 depends on SYS_SUPPORTS_TMU
9570ef20 530 default y
9570ef20
MD
531 help
532 This enables the build of the TMU timer driver.
533
f5ad881b 534config SH_TIMER_CMT
f425752f
MD
535 bool "CMT timer driver"
536 depends on SYS_SUPPORTS_CMT
537 default y
f425752f
MD
538 help
539 This enables build of the CMT timer driver.
f5ad881b 540
d5ed4c2e
MD
541config SH_TIMER_MTU2
542 bool "MTU2 timer driver"
3280c886 543 depends on SYS_SUPPORTS_MTU2
d5ed4c2e 544 default y
d5ed4c2e
MD
545 help
546 This enables build of the MTU2 timer driver.
547
cad82448
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548config SH_PCLK_FREQ
549 int "Peripheral clock frequency (in Hz)"
8152a74b 550 depends on SH_CLK_CPG_LEGACY
9d4436a6 551 default "31250000" if CPU_SUBTYPE_SH7619
8152a74b
PM
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 || \
43a1839c 558 CPU_SUBTYPE_MXG
05627486 559 default "60000000" if CPU_SUBTYPE_SH7751 || CPU_SUBTYPE_SH7751R
cad82448 560 default "66000000" if CPU_SUBTYPE_SH4_202
05627486 561 default "50000000"
1da177e4 562 help
cad82448
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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.
1da177e4 566
36aa1e32
PM
567config SH_CLK_CPG
568 def_bool y
569
253b0887 570config SH_CLK_CPG_LEGACY
36aa1e32 571 depends on SH_CLK_CPG
43a1839c
PM
572 def_bool y if !CPU_SUBTYPE_SH7785 && !ARCH_SHMOBILE && \
573 !CPU_SUBTYPE_SH7786
253b0887 574
9d4436a6
YS
575config SH_CLK_MD
576 int "CPU Mode Pin Setting"
6d01f510 577 depends on CPU_SH2
357d5946
PM
578 default 6 if CPU_SUBTYPE_SH7206
579 default 5 if CPU_SUBTYPE_SH7619
580 default 0
9d4436a6 581 help
11cbb70e 582 MD2 - MD0 pin setting.
9d4436a6 583
57be2b48
PM
584source "kernel/time/Kconfig"
585
32351a28
PM
586endmenu
587
cad82448
PM
588menu "CPU Frequency scaling"
589
590source "drivers/cpufreq/Kconfig"
1da177e4 591
cad82448
PM
592config SH_CPU_FREQ
593 tristate "SuperH CPU Frequency driver"
cb5ec75b 594 depends on CPU_FREQ
cad82448 595 select CPU_FREQ_TABLE
1da177e4 596 help
8a655053
PM
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.
1da177e4 603
cad82448 604 For details, take a look at <file:Documentation/cpu-freq>.
1da177e4
LT
605
606 If unsure, say N.
607
cad82448
PM
608endmenu
609
9f5e8eee
PM
610source "arch/sh/drivers/Kconfig"
611
cad82448 612endmenu
1da177e4 613
cad82448
PM
614menu "Kernel features"
615
91b91d01
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616source kernel/Kconfig.hz
617
cad82448
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618config KEXEC
619 bool "kexec system call (EXPERIMENTAL)"
f36b59d1 620 depends on SUPERH32 && EXPERIMENTAL && MMU
1da177e4 621 help
cad82448
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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
1f1332f7 624 but it is independent of the system firmware. And like a reboot
cad82448
PM
625 you can start any kernel with it, not just Linux.
626
1f1332f7 627 The name comes from the similarity to the exec system call.
cad82448
PM
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
4d5ade5b
PM
635config CRASH_DUMP
636 bool "kernel crash dumps (EXPERIMENTAL)"
640f7487 637 depends on SUPERH32 && EXPERIMENTAL
4d5ade5b
PM
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
b7cf6ddc
MD
649config 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
c4637d47
PM
656config SECCOMP
657 bool "Enable seccomp to safely compute untrusted bytecode"
658 depends on PROC_FS
c4637d47
PM
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
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672config SMP
673 bool "Symmetric multi-processing support"
357d5946 674 depends on SYS_SUPPORTS_SMP
490f5de5 675 select USE_GENERIC_SMP_HELPERS
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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
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690 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
691 available at <http://www.tldp.org/docs.html#howto>.
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692
693 If you don't know what to do here, say N.
694
695config NR_CPUS
696 int "Maximum number of CPUs (2-32)"
697 range 2 32
698 depends on SMP
2eb2a436 699 default "4" if CPU_SUBTYPE_SHX3
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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
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709source "kernel/Kconfig.preempt"
710
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711config GUSA
712 def_bool y
1efe4ce3 713 depends on !SMP && SUPERH32
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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
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725config 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
692105b8 730 atomic operations using a software implementation of load-locked/
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731 store-conditional (LLSC). On machines which do not have hardware
732 LLSC, this should be more efficient than the other alternative of
692105b8 733 disabling interrupts around the atomic sequence.
1efe4ce3 734
cad82448 735endmenu
1da177e4 736
cad82448 737menu "Boot options"
1da177e4 738
cad82448 739config ZERO_PAGE_OFFSET
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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
7a847f81 744 default "0x00002000" if PAGE_SIZE_8KB
cad82448 745 default "0x00001000"
1da177e4 746 help
cad82448 747 This sets the default offset of zero page.
1da177e4 748
cad82448 749config BOOT_LINK_OFFSET
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750 hex
751 default "0x00210000" if SH_SHMIN
a2e76c80 752 default "0x00400000" if SH_CAYMAN
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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
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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.
1da177e4 762
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763config 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
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771choice
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
779config CMDLINE_OVERWRITE
780 bool "Overwrite bootloader kernel arguments"
781 help
782 Given string will overwrite any arguments passed in by
783 a bootloader.
784
785config 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
791endchoice
1da177e4 792
cad82448 793config CMDLINE
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794 string "Kernel command line arguments string"
795 depends on CMDLINE_OVERWRITE || CMDLINE_EXTEND
cad82448 796 default "console=ttySC1,115200"
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797
798endmenu
799
cad82448 800menu "Bus options"
1da177e4 801
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802config SUPERHYWAY
803 tristate "SuperHyway Bus support"
804 depends on CPU_SUBTYPE_SH4_202
1da177e4 805
17be2d2b 806config MAPLE
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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.
17be2d2b 816
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817config PCI
818 bool "PCI support"
819 depends on SYS_SUPPORTS_PCI
320e68da 820 select PCI_DOMAINS
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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.
1da177e4 825
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826config PCI_DOMAINS
827 bool
828
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829source "drivers/pci/pcie/Kconfig"
830
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831source "drivers/pci/Kconfig"
832
833source "drivers/pcmcia/Kconfig"
834
835source "drivers/pci/hotplug/Kconfig"
836
837endmenu
838
839menu "Executable file formats"
840
841source "fs/Kconfig.binfmt"
842
843endmenu
844
3aa770e7 845menu "Power management options (EXPERIMENTAL)"
af998a9a 846depends on EXPERIMENTAL
f4cb5700 847
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848source "kernel/power/Kconfig"
849
850source "drivers/cpuidle/Kconfig"
3aa770e7 851
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852endmenu
853
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854source "net/Kconfig"
855
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856source "drivers/Kconfig"
857
858source "fs/Kconfig"
859
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860source "arch/sh/Kconfig.debug"
861
862source "security/Kconfig"
863
864source "crypto/Kconfig"
865
866source "lib/Kconfig"