sh: use set_current_blocked() and block_sigmask()
[linux-block.git] / arch / sh / Kconfig
CommitLineData
1da177e4 1config SUPERH
ea0e1a9a 2 def_bool y
6a108a14 3 select EXPERT
6d803ba7 4 select CLKDEV_LOOKUP
86e4dd5a 5 select HAVE_IDE if HAS_IOPORT
95f72d1e 6 select HAVE_MEMBLOCK
534cfbee 7 select HAVE_MEMBLOCK_NODE_MAP
adaf7fd2 8 select ARCH_DISCARD_MEMBLOCK
42d4b839 9 select HAVE_OPROFILE
9de90ac2 10 select HAVE_GENERIC_DMA_COHERENT
d7b01f78 11 select HAVE_ARCH_TRACEHOOK
f802d969 12 select HAVE_DMA_API_DEBUG
73c926be 13 select HAVE_DMA_ATTRS
e360adbe 14 select HAVE_IRQ_WORK
cdd6c482 15 select HAVE_PERF_EVENTS
df013ffb 16 select ARCH_HAVE_NMI_SAFE_CMPXCHG if (GUSA_RB || CPU_SH4A)
72f0c137 17 select PERF_USE_VMALLOC
df8ce259 18 select HAVE_KERNEL_GZIP
07e88e1b
PM
19 select HAVE_KERNEL_BZIP2
20 select HAVE_KERNEL_LZMA
50cfa79d 21 select HAVE_KERNEL_XZ
c7b16efb 22 select HAVE_KERNEL_LZO
a74f7e04 23 select HAVE_SYSCALL_TRACEPOINTS
eaaaeef3 24 select HAVE_REGS_AND_STACK_ACCESS_API
57b81330
PM
25 select HAVE_GENERIC_HARDIRQS
26 select HAVE_SPARSE_IRQ
ed170924 27 select IRQ_FORCED_THREADING
6eac1af0 28 select RTC_LIB
f01789c6 29 select GENERIC_ATOMIC64
3d44ae40 30 select GENERIC_IRQ_SHOW
1da177e4
LT
31 help
32 The SuperH is a RISC processor targeted for use in embedded systems
33 and consumer electronics; it was also used in the Sega Dreamcast
34 gaming console. The SuperH port has a home page at
35 <http://www.linux-sh.org/>.
36
39d28a2d 37config SUPERH32
3cc000b5 38 def_bool ARCH = "sh"
d39f5450
CS
39 select HAVE_KPROBES
40 select HAVE_KRETPROBES
6d63e73d 41 select HAVE_IOREMAP_PROT if MMU && !X2TLB
694f94f2 42 select HAVE_FUNCTION_TRACER
fad57feb
MF
43 select HAVE_FTRACE_MCOUNT_RECORD
44 select HAVE_DYNAMIC_FTRACE
c1340c05 45 select HAVE_FUNCTION_TRACE_MCOUNT_TEST
e4b053d9 46 select HAVE_FTRACE_NMI_ENTER if DYNAMIC_FTRACE
327933f5 47 select HAVE_FUNCTION_GRAPH_TRACER
ab6e570b 48 select HAVE_ARCH_KGDB
6fbfe8d7 49 select HAVE_HW_BREAKPOINT
0102752e 50 select HAVE_MIXED_BREAKPOINTS_REGS
e583d6b3 51 select PERF_EVENTS
8dafc346 52 select ARCH_HIBERNATION_POSSIBLE if MMU
57b81330 53 select SPARSE_IRQ
ea0e1a9a
PM
54
55config SUPERH64
3cc000b5 56 def_bool ARCH = "sh64"
39d28a2d 57
f42b7e3d
PM
58config ARCH_DEFCONFIG
59 string
60 default "arch/sh/configs/shx3_defconfig" if SUPERH32
61 default "arch/sh/configs/cayman_defconfig" if SUPERH64
62
1da177e4 63config RWSEM_GENERIC_SPINLOCK
d7ef4fb3 64 def_bool y
1da177e4
LT
65
66config RWSEM_XCHGADD_ALGORITHM
67 bool
68
fa691511
PM
69config GENERIC_BUG
70 def_bool y
a82d53ec 71 depends on BUG && SUPERH32
fa691511 72
3767f3f1
PM
73config GENERIC_CSUM
74 def_bool y
75 depends on SUPERH64
76
e2268c71 77config GENERIC_HWEIGHT
d7ef4fb3 78 def_bool y
e2268c71 79
2eb2a436
PM
80config IRQ_PER_CPU
81 def_bool y
82
2967dab1
MD
83config GENERIC_GPIO
84 def_bool n
85
1da177e4 86config GENERIC_CALIBRATE_DELAY
cf204fa7 87 bool
1da177e4 88
57be2b48 89config GENERIC_CLOCKEVENTS
938edae1 90 def_bool y
57be2b48 91
8c24594d
PM
92config GENERIC_CLOCKEVENTS_BROADCAST
93 bool
94
6d134b9e
PM
95config GENERIC_CMOS_UPDATE
96 def_bool y
97 depends on SH_SH03 || SH_DREAMCAST
98
bdcab87b
PM
99config GENERIC_LOCKBREAK
100 def_bool y
101 depends on SMP && PREEMPT
102
af998a9a
MD
103config ARCH_SUSPEND_POSSIBLE
104 def_bool n
105
106config ARCH_HIBERNATION_POSSIBLE
107 def_bool n
357d5946 108
0a9b0db1
PM
109config SYS_SUPPORTS_APM_EMULATION
110 bool
af998a9a 111 select ARCH_SUSPEND_POSSIBLE
357d5946 112
ffb4a73d
PM
113config SYS_SUPPORTS_HUGETLBFS
114 bool
115
357d5946
PM
116config SYS_SUPPORTS_SMP
117 bool
118
119config SYS_SUPPORTS_NUMA
120 bool
121
122config SYS_SUPPORTS_PCI
123 bool
0a9b0db1 124
f5ad881b
PM
125config SYS_SUPPORTS_CMT
126 bool
127
d5ed4c2e
MD
128config SYS_SUPPORTS_MTU2
129 bool
130
9570ef20
MD
131config SYS_SUPPORTS_TMU
132 bool
133
afbfb52e 134config STACKTRACE_SUPPORT
d7ef4fb3 135 def_bool y
afbfb52e
PM
136
137config LOCKDEP_SUPPORT
d7ef4fb3 138 def_bool y
afbfb52e 139
5a89f1ad
PM
140config HAVE_LATENCYTOP_SUPPORT
141 def_bool y
5a89f1ad 142
f0d1b0b3 143config ARCH_HAS_ILOG2_U32
d7ef4fb3 144 def_bool n
f0d1b0b3
DH
145
146config ARCH_HAS_ILOG2_U64
d7ef4fb3 147 def_bool n
f0d1b0b3 148
e257ad06
PM
149config ARCH_NO_VIRT_TO_BUS
150 def_bool y
151
e869a90e
PM
152config ARCH_HAS_DEFAULT_IDLE
153 def_bool y
154
2e046b94
PM
155config ARCH_HAS_CPU_IDLE_WAIT
156 def_bool y
157
86e4dd5a 158config NO_IOPORT
37b7a978 159 def_bool !PCI
4e2b1084 160 depends on !SH_CAYMAN && !SH_SH4202_MICRODEV && !SH_SHMIN
86e4dd5a 161
e7cc9a73
MD
162config IO_TRAPPED
163 bool
164
01be5d63
PM
165config DMA_COHERENT
166 bool
167
168config DMA_NONCOHERENT
169 def_bool !DMA_COHERENT
170
5cabbb62
FT
171config NEED_DMA_MAP_STATE
172 def_bool DMA_NONCOHERENT
173
18e98307
FT
174config NEED_SG_DMA_LENGTH
175 def_bool y
176
1da177e4
LT
177source "init/Kconfig"
178
dc52ddc0
MH
179source "kernel/Kconfig.freezer"
180
1da177e4
LT
181menu "System type"
182
b5f42db0
PM
183#
184# Processor families
185#
186config CPU_SH2
187 bool
188
189config CPU_SH2A
190 bool
191 select CPU_SH2
e2fcf74f 192 select UNCACHED_MAPPING
b5f42db0
PM
193
194config CPU_SH3
195 bool
196 select CPU_HAS_INTEVT
197 select CPU_HAS_SR_RB
4fa48e17 198 select SYS_SUPPORTS_TMU
b5f42db0
PM
199
200config CPU_SH4
201 bool
202 select CPU_HAS_INTEVT
203 select CPU_HAS_SR_RB
b5f42db0 204 select CPU_HAS_FPU if !CPU_SH4AL_DSP
4fa48e17 205 select SYS_SUPPORTS_TMU
ffb4a73d 206 select SYS_SUPPORTS_HUGETLBFS if MMU
b5f42db0
PM
207
208config CPU_SH4A
209 bool
210 select CPU_SH4
211
212config CPU_SH4AL_DSP
213 bool
214 select CPU_SH4A
215 select CPU_HAS_DSP
216
ea0e1a9a
PM
217config CPU_SH5
218 bool
219 select CPU_HAS_FPU
add47067 220 select SYS_SUPPORTS_TMU
ffb4a73d 221 select SYS_SUPPORTS_HUGETLBFS if MMU
ea0e1a9a 222
b5f42db0
PM
223config CPU_SHX2
224 bool
225
226config CPU_SHX3
227 bool
01be5d63 228 select DMA_COHERENT
4b478ee2
PM
229 select SYS_SUPPORTS_SMP
230 select SYS_SUPPORTS_NUMA
b5f42db0 231
dc65a977
PM
232config ARCH_SHMOBILE
233 bool
77594912 234 select ARCH_SUSPEND_POSSIBLE
ac2c596b
MD
235 select PM
236 select PM_RUNTIME
dc65a977 237
86c8c047
MF
238config CPU_HAS_PMU
239 depends on CPU_SH4 || CPU_SH4A
240 default y
241 bool
242
3cc000b5
PM
243if SUPERH32
244
b5f42db0
PM
245choice
246 prompt "Processor sub-type selection"
247
248#
249# Processor subtypes
250#
251
252# SH-2 Processor Support
253
254config CPU_SUBTYPE_SH7619
255 bool "Support SH7619 processor"
256 select CPU_SH2
f5ad881b 257 select SYS_SUPPORTS_CMT
b5f42db0
PM
258
259# SH-2A Processor Support
260
2825999e
PG
261config CPU_SUBTYPE_SH7201
262 bool "Support SH7201 processor"
263 select CPU_SH2A
264 select CPU_HAS_FPU
da107c6e 265 select SYS_SUPPORTS_MTU2
2825999e 266
6d01f510
PM
267config CPU_SUBTYPE_SH7203
268 bool "Support SH7203 processor"
269 select CPU_SH2A
74d99a5e 270 select CPU_HAS_FPU
f5ad881b 271 select SYS_SUPPORTS_CMT
da107c6e 272 select SYS_SUPPORTS_MTU2
f020c92d 273 select ARCH_WANT_OPTIONAL_GPIOLIB
6d01f510 274
b5f42db0
PM
275config CPU_SUBTYPE_SH7206
276 bool "Support SH7206 processor"
277 select CPU_SH2A
f5ad881b 278 select SYS_SUPPORTS_CMT
da107c6e 279 select SYS_SUPPORTS_MTU2
b5f42db0 280
a8f67f4b
PM
281config CPU_SUBTYPE_SH7263
282 bool "Support SH7263 processor"
283 select CPU_SH2A
74d99a5e 284 select CPU_HAS_FPU
f5ad881b 285 select SYS_SUPPORTS_CMT
da107c6e 286 select SYS_SUPPORTS_MTU2
a8f67f4b 287
2ad69908
PM
288config CPU_SUBTYPE_MXG
289 bool "Support MX-G processor"
290 select CPU_SH2A
da107c6e 291 select SYS_SUPPORTS_MTU2
2ad69908
PM
292 help
293 Select MX-G if running on an R8A03022BG part.
294
b5f42db0
PM
295# SH-3 Processor Support
296
297config CPU_SUBTYPE_SH7705
298 bool "Support SH7705 processor"
299 select CPU_SH3
300
301config CPU_SUBTYPE_SH7706
302 bool "Support SH7706 processor"
303 select CPU_SH3
304 help
305 Select SH7706 if you have a 133 Mhz SH-3 HD6417706 CPU.
306
307config CPU_SUBTYPE_SH7707
308 bool "Support SH7707 processor"
309 select CPU_SH3
310 help
311 Select SH7707 if you have a 60 Mhz SH-3 HD6417707 CPU.
312
313config CPU_SUBTYPE_SH7708
314 bool "Support SH7708 processor"
315 select CPU_SH3
316 help
317 Select SH7708 if you have a 60 Mhz SH-3 HD6417708S or
318 if you have a 100 Mhz SH-3 HD6417708R CPU.
319
320config CPU_SUBTYPE_SH7709
321 bool "Support SH7709 processor"
322 select CPU_SH3
323 help
324 Select SH7709 if you have a 80 Mhz SH-3 HD6417709 CPU.
325
326config CPU_SUBTYPE_SH7710
327 bool "Support SH7710 processor"
328 select CPU_SH3
329 select CPU_HAS_DSP
330 help
331 Select SH7710 if you have a SH3-DSP SH7710 CPU.
332
333config CPU_SUBTYPE_SH7712
334 bool "Support SH7712 processor"
335 select CPU_SH3
336 select CPU_HAS_DSP
337 help
338 Select SH7712 if you have a SH3-DSP SH7712 CPU.
339
340config CPU_SUBTYPE_SH7720
341 bool "Support SH7720 processor"
342 select CPU_SH3
343 select CPU_HAS_DSP
2b23a882 344 select SYS_SUPPORTS_CMT
f020c92d 345 select ARCH_WANT_OPTIONAL_GPIOLIB
e3e9887e 346 select USB_ARCH_HAS_OHCI
7b61ca5d 347 select USB_OHCI_SH if USB_OHCI_HCD
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
e3e9887e 356 select USB_ARCH_HAS_OHCI
7b61ca5d 357 select USB_OHCI_SH if USB_OHCI_HCD
31a49c4b
YS
358 help
359 Select SH7721 if you have a SH3-DSP SH7721 CPU.
360
b5f42db0
PM
361# SH-4 Processor Support
362
363config CPU_SUBTYPE_SH7750
364 bool "Support SH7750 processor"
365 select CPU_SH4
366 help
367 Select SH7750 if you have a 200 Mhz SH-4 HD6417750 CPU.
368
369config CPU_SUBTYPE_SH7091
370 bool "Support SH7091 processor"
371 select CPU_SH4
372 help
373 Select SH7091 if you have an SH-4 based Sega device (such as
374 the Dreamcast, Naomi, and Naomi 2).
375
376config CPU_SUBTYPE_SH7750R
377 bool "Support SH7750R processor"
378 select CPU_SH4
379
380config CPU_SUBTYPE_SH7750S
381 bool "Support SH7750S processor"
382 select CPU_SH4
383
384config CPU_SUBTYPE_SH7751
385 bool "Support SH7751 processor"
386 select CPU_SH4
387 help
388 Select SH7751 if you have a 166 Mhz SH-4 HD6417751 CPU,
389 or if you have a HD6417751R CPU.
390
391config CPU_SUBTYPE_SH7751R
392 bool "Support SH7751R processor"
393 select CPU_SH4
394
395config CPU_SUBTYPE_SH7760
396 bool "Support SH7760 processor"
397 select CPU_SH4
398
399config CPU_SUBTYPE_SH4_202
400 bool "Support SH4-202 processor"
401 select CPU_SH4
402
403# SH-4A Processor Support
404
178dd0cd
PM
405config CPU_SUBTYPE_SH7723
406 bool "Support SH7723 processor"
407 select CPU_SH4A
408 select CPU_SHX2
dc65a977 409 select ARCH_SHMOBILE
178dd0cd 410 select ARCH_SPARSEMEM_ENABLE
f5ad881b 411 select SYS_SUPPORTS_CMT
f020c92d 412 select ARCH_WANT_OPTIONAL_GPIOLIB
178dd0cd
PM
413 help
414 Select SH7723 if you have an SH-MobileR2 CPU.
415
0207a2ef
KM
416config CPU_SUBTYPE_SH7724
417 bool "Support SH7724 processor"
418 select CPU_SH4A
419 select CPU_SHX2
59fe700d 420 select ARCH_SHMOBILE
0207a2ef
KM
421 select ARCH_SPARSEMEM_ENABLE
422 select SYS_SUPPORTS_CMT
f020c92d 423 select ARCH_WANT_OPTIONAL_GPIOLIB
0207a2ef
KM
424 help
425 Select SH7724 if you have an SH-MobileR2R CPU.
426
c01f0f1a
YS
427config CPU_SUBTYPE_SH7757
428 bool "Support SH7757 processor"
429 select CPU_SH4A
430 select CPU_SHX2
f020c92d 431 select ARCH_WANT_OPTIONAL_GPIOLIB
0fe48601
YS
432 select USB_ARCH_HAS_OHCI
433 select USB_ARCH_HAS_EHCI
c01f0f1a
YS
434 help
435 Select SH7757 if you have a SH4A SH7757 CPU.
436
7d740a06
YS
437config CPU_SUBTYPE_SH7763
438 bool "Support SH7763 processor"
439 select CPU_SH4A
e3e9887e 440 select USB_ARCH_HAS_OHCI
7b61ca5d 441 select USB_OHCI_SH if USB_OHCI_HCD
7d740a06
YS
442 help
443 Select SH7763 if you have a SH4A SH7763(R5S77631) CPU.
444
b5f42db0
PM
445config CPU_SUBTYPE_SH7770
446 bool "Support SH7770 processor"
447 select CPU_SH4A
448
449config CPU_SUBTYPE_SH7780
450 bool "Support SH7780 processor"
451 select CPU_SH4A
452
453config CPU_SUBTYPE_SH7785
454 bool "Support SH7785 processor"
455 select CPU_SH4A
456 select CPU_SHX2
55ba99eb
KM
457 select ARCH_SPARSEMEM_ENABLE
458 select SYS_SUPPORTS_NUMA
f020c92d 459 select ARCH_WANT_OPTIONAL_GPIOLIB
55ba99eb
KM
460
461config CPU_SUBTYPE_SH7786
462 bool "Support SH7786 processor"
463 select CPU_SH4A
37042fbd 464 select CPU_SHX3
8263a67e 465 select CPU_HAS_PTEAEX
2eb2a436 466 select GENERIC_CLOCKEVENTS_BROADCAST if SMP
f020c92d 467 select ARCH_WANT_OPTIONAL_GPIOLIB
e3e9887e 468 select USB_ARCH_HAS_OHCI
7b61ca5d 469 select USB_OHCI_SH if USB_OHCI_HCD
e3e9887e 470 select USB_ARCH_HAS_EHCI
7b61ca5d 471 select USB_EHCI_SH if USB_EHCI_HCD
b5f42db0
PM
472
473config CPU_SUBTYPE_SHX3
474 bool "Support SH-X3 processor"
475 select CPU_SH4A
476 select CPU_SHX3
5840263e 477 select GENERIC_CLOCKEVENTS_BROADCAST if SMP
742759ea 478 select ARCH_REQUIRE_GPIOLIB
b5f42db0
PM
479
480# SH4AL-DSP Processor Support
481
482config CPU_SUBTYPE_SH7343
483 bool "Support SH7343 processor"
484 select CPU_SH4AL_DSP
dc65a977 485 select ARCH_SHMOBILE
f5ad881b 486 select SYS_SUPPORTS_CMT
b5f42db0
PM
487
488config CPU_SUBTYPE_SH7722
489 bool "Support SH7722 processor"
490 select CPU_SH4AL_DSP
491 select CPU_SHX2
dc65a977 492 select ARCH_SHMOBILE
b5f42db0
PM
493 select ARCH_SPARSEMEM_ENABLE
494 select SYS_SUPPORTS_NUMA
f5ad881b 495 select SYS_SUPPORTS_CMT
f020c92d 496 select ARCH_WANT_OPTIONAL_GPIOLIB
9109a30e
MD
497
498config CPU_SUBTYPE_SH7366
499 bool "Support SH7366 processor"
500 select CPU_SH4AL_DSP
501 select CPU_SHX2
dc65a977 502 select ARCH_SHMOBILE
9109a30e
MD
503 select ARCH_SPARSEMEM_ENABLE
504 select SYS_SUPPORTS_NUMA
f5ad881b 505 select SYS_SUPPORTS_CMT
b5f42db0 506
3cc000b5
PM
507endchoice
508
509endif
510
511if SUPERH64
512
513choice
514 prompt "Processor sub-type selection"
515
ea0e1a9a
PM
516# SH-5 Processor Support
517
518config CPU_SUBTYPE_SH5_101
519 bool "Support SH5-101 processor"
520 select CPU_SH5
521
522config CPU_SUBTYPE_SH5_103
523 bool "Support SH5-103 processor"
8ef97dd7 524 select CPU_SH5
ea0e1a9a 525
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526endchoice
527
3cc000b5
PM
528endif
529
f3d22298 530source "arch/sh/mm/Kconfig"
939a24a6 531
4690bdc7 532source "arch/sh/Kconfig.cpu"
f3d22298 533
939a24a6 534source "arch/sh/boards/Kconfig"
32351a28 535
32351a28
PM
536menu "Timer and clock configuration"
537
9570ef20
MD
538config SH_TIMER_TMU
539 bool "TMU timer driver"
f19900b2 540 depends on SYS_SUPPORTS_TMU
9570ef20 541 default y
9570ef20
MD
542 help
543 This enables the build of the TMU timer driver.
544
f5ad881b 545config SH_TIMER_CMT
f425752f
MD
546 bool "CMT timer driver"
547 depends on SYS_SUPPORTS_CMT
548 default y
f425752f
MD
549 help
550 This enables build of the CMT timer driver.
f5ad881b 551
d5ed4c2e
MD
552config SH_TIMER_MTU2
553 bool "MTU2 timer driver"
3280c886 554 depends on SYS_SUPPORTS_MTU2
d5ed4c2e 555 default y
d5ed4c2e
MD
556 help
557 This enables build of the MTU2 timer driver.
558
cad82448
PM
559config SH_PCLK_FREQ
560 int "Peripheral clock frequency (in Hz)"
8152a74b 561 depends on SH_CLK_CPG_LEGACY
9d4436a6 562 default "31250000" if CPU_SUBTYPE_SH7619
8152a74b
PM
563 default "33333333" if CPU_SUBTYPE_SH7770 || \
564 CPU_SUBTYPE_SH7760 || \
565 CPU_SUBTYPE_SH7705 || \
566 CPU_SUBTYPE_SH7203 || \
567 CPU_SUBTYPE_SH7206 || \
568 CPU_SUBTYPE_SH7263 || \
43a1839c 569 CPU_SUBTYPE_MXG
05627486 570 default "60000000" if CPU_SUBTYPE_SH7751 || CPU_SUBTYPE_SH7751R
cad82448 571 default "66000000" if CPU_SUBTYPE_SH4_202
05627486 572 default "50000000"
1da177e4 573 help
cad82448
PM
574 This option is used to specify the peripheral clock frequency.
575 This is necessary for determining the reference clock value on
576 platforms lacking an RTC.
1da177e4 577
36aa1e32
PM
578config SH_CLK_CPG
579 def_bool y
580
253b0887 581config SH_CLK_CPG_LEGACY
36aa1e32 582 depends on SH_CLK_CPG
43a1839c 583 def_bool y if !CPU_SUBTYPE_SH7785 && !ARCH_SHMOBILE && \
5924ad0d 584 !CPU_SHX3 && !CPU_SUBTYPE_SH7757
253b0887 585
57be2b48
PM
586source "kernel/time/Kconfig"
587
32351a28
PM
588endmenu
589
cad82448
PM
590menu "CPU Frequency scaling"
591
592source "drivers/cpufreq/Kconfig"
1da177e4 593
cad82448
PM
594config SH_CPU_FREQ
595 tristate "SuperH CPU Frequency driver"
cb5ec75b 596 depends on CPU_FREQ
cad82448 597 select CPU_FREQ_TABLE
1da177e4 598 help
8a655053
PM
599 This adds the cpufreq driver for SuperH. Any CPU that supports
600 clock rate rounding through the clock framework can use this
601 driver. While it will make the kernel slightly larger, this is
602 harmless for CPUs that don't support rate rounding. The driver
603 will also generate a notice in the boot log before disabling
604 itself if the CPU in question is not capable of rate rounding.
1da177e4 605
cad82448 606 For details, take a look at <file:Documentation/cpu-freq>.
1da177e4
LT
607
608 If unsure, say N.
609
cad82448
PM
610endmenu
611
9f5e8eee
PM
612source "arch/sh/drivers/Kconfig"
613
cad82448 614endmenu
1da177e4 615
cad82448
PM
616menu "Kernel features"
617
91b91d01
PM
618source kernel/Kconfig.hz
619
cad82448
PM
620config KEXEC
621 bool "kexec system call (EXPERIMENTAL)"
f36b59d1 622 depends on SUPERH32 && EXPERIMENTAL && MMU
1da177e4 623 help
cad82448
PM
624 kexec is a system call that implements the ability to shutdown your
625 current kernel, and to start another kernel. It is like a reboot
1f1332f7 626 but it is independent of the system firmware. And like a reboot
cad82448
PM
627 you can start any kernel with it, not just Linux.
628
1f1332f7 629 The name comes from the similarity to the exec system call.
cad82448
PM
630
631 It is an ongoing process to be certain the hardware in a machine
632 is properly shutdown, so do not be surprised if this code does not
633 initially work for you. It may help to enable device hotplugging
634 support. As of this writing the exact hardware interface is
635 strongly in flux, so no good recommendation can be made.
636
4d5ade5b
PM
637config CRASH_DUMP
638 bool "kernel crash dumps (EXPERIMENTAL)"
d523e1ae 639 depends on SUPERH32 && EXPERIMENTAL && BROKEN_ON_SMP
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640 help
641 Generate crash dump after being started by kexec.
642 This should be normally only set in special crash dump kernels
643 which are loaded in the main kernel with kexec-tools into
644 a specially reserved region and then later executed after
645 a crash by kdump/kexec. The crash dump kernel must be compiled
646 to a memory address not used by the main kernel using
e66ac3f2 647 PHYSICAL_START.
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648
649 For more details see Documentation/kdump/kdump.txt
650
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651config KEXEC_JUMP
652 bool "kexec jump (EXPERIMENTAL)"
653 depends on SUPERH32 && KEXEC && HIBERNATION && EXPERIMENTAL
654 help
655 Jump between original kernel and kexeced kernel and invoke
656 code via KEXEC
657
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658config PHYSICAL_START
659 hex "Physical address where the kernel is loaded" if (EXPERT || CRASH_DUMP)
660 default MEMORY_START
661 ---help---
662 This gives the physical address where the kernel is loaded
663 and is ordinarily the same as MEMORY_START.
664
665 Different values are primarily used in the case of kexec on panic
666 where the fail safe kernel needs to run at a different address
667 than the panic-ed kernel.
668
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669config SECCOMP
670 bool "Enable seccomp to safely compute untrusted bytecode"
671 depends on PROC_FS
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672 help
673 This kernel feature is useful for number crunching applications
674 that may need to compute untrusted bytecode during their
675 execution. By using pipes or other transports made available to
676 the process as file descriptors supporting the read/write
677 syscalls, it's possible to isolate those applications in
678 their own address space using seccomp. Once seccomp is
679 enabled via prctl, it cannot be disabled and the task is only
680 allowed to execute a few safe syscalls defined by each seccomp
681 mode.
682
683 If unsure, say N.
684
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685config SMP
686 bool "Symmetric multi-processing support"
357d5946 687 depends on SYS_SUPPORTS_SMP
490f5de5 688 select USE_GENERIC_SMP_HELPERS
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689 ---help---
690 This enables support for systems with more than one CPU. If you have
691 a system with only one CPU, like most personal computers, say N. If
692 you have a system with more than one CPU, say Y.
693
694 If you say N here, the kernel will run on single and multiprocessor
695 machines, but will use only one CPU of a multiprocessor machine. If
696 you say Y here, the kernel will run on many, but not all,
697 singleprocessor machines. On a singleprocessor machine, the kernel
698 will run faster if you say N here.
699
700 People using multiprocessor machines who say Y here should also say
701 Y to "Enhanced Real Time Clock Support", below.
702
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703 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
704 available at <http://www.tldp.org/docs.html#howto>.
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705
706 If you don't know what to do here, say N.
707
708config NR_CPUS
709 int "Maximum number of CPUs (2-32)"
710 range 2 32
711 depends on SMP
2eb2a436 712 default "4" if CPU_SUBTYPE_SHX3
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713 default "2"
714 help
715 This allows you to specify the maximum number of CPUs which this
716 kernel will support. The maximum supported value is 32 and the
717 minimum value which makes sense is 2.
718
719 This is purely to save memory - each supported CPU adds
720 approximately eight kilobytes to the kernel image.
721
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722config HOTPLUG_CPU
723 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
724 depends on SMP && HOTPLUG && EXPERIMENTAL
725 help
726 Say Y here to experiment with turning CPUs off and on. CPUs
727 can be controlled through /sys/devices/system/cpu.
728
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729source "kernel/Kconfig.preempt"
730
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731config GUSA
732 def_bool y
1efe4ce3 733 depends on !SMP && SUPERH32
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734 help
735 This enables support for gUSA (general UserSpace Atomicity).
736 This is the default implementation for both UP and non-ll/sc
737 CPUs, and is used by the libc, amongst others.
738
739 For additional information, design information can be found
740 in <http://lc.linux.or.jp/lc2002/papers/niibe0919p.pdf>.
741
742 This should only be disabled for special cases where alternate
743 atomicity implementations exist.
744
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745config GUSA_RB
746 bool "Implement atomic operations by roll-back (gRB) (EXPERIMENTAL)"
747 depends on GUSA && CPU_SH3 || (CPU_SH4 && !CPU_SH4A)
748 help
749 Enabling this option will allow the kernel to implement some
692105b8 750 atomic operations using a software implementation of load-locked/
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751 store-conditional (LLSC). On machines which do not have hardware
752 LLSC, this should be more efficient than the other alternative of
692105b8 753 disabling interrupts around the atomic sequence.
1efe4ce3 754
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755config HW_PERF_EVENTS
756 bool "Enable hardware performance counter support for perf events"
757 depends on PERF_EVENTS && CPU_HAS_PMU
758 default y
759 help
760 Enable hardware performance counter support for perf events. If
761 disabled, perf events will use software events only.
762
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763source "drivers/sh/Kconfig"
764
cad82448 765endmenu
1da177e4 766
cad82448 767menu "Boot options"
1da177e4 768
cad82448 769config ZERO_PAGE_OFFSET
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770 hex
771 default "0x00010000" if PAGE_SIZE_64KB || SH_RTS7751R2D || \
772 SH_7751_SOLUTION_ENGINE
773 default "0x00004000" if PAGE_SIZE_16KB || SH_SH03
7a847f81 774 default "0x00002000" if PAGE_SIZE_8KB
cad82448 775 default "0x00001000"
1da177e4 776 help
cad82448 777 This sets the default offset of zero page.
1da177e4 778
cad82448 779config BOOT_LINK_OFFSET
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780 hex
781 default "0x00210000" if SH_SHMIN
a2e76c80 782 default "0x00400000" if SH_CAYMAN
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783 default "0x00810000" if SH_7780_SOLUTION_ENGINE
784 default "0x009e0000" if SH_TITAN
785 default "0x01800000" if SH_SDK7780
786 default "0x02000000" if SH_EDOSK7760
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787 default "0x00800000"
788 help
789 This option allows you to set the link address offset of the zImage.
790 This can be useful if you are on a board which has a small amount of
791 memory.
1da177e4 792
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793config ENTRY_OFFSET
794 hex
795 default "0x00001000" if PAGE_SIZE_4KB
796 default "0x00002000" if PAGE_SIZE_8KB
797 default "0x00004000" if PAGE_SIZE_16KB
798 default "0x00010000" if PAGE_SIZE_64KB
799 default "0x00000000"
800
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801config ROMIMAGE_MMCIF
802 bool "Include MMCIF loader in romImage (EXPERIMENTAL)"
803 depends on CPU_SUBTYPE_SH7724 && EXPERIMENTAL
804 help
805 Say Y here to include experimental MMCIF loading code in
806 romImage. With this enabled it is possible to write the romImage
807 kernel image to an MMC card and boot the kernel straight from
808 the reset vector. At reset the processor Mask ROM will load the
809 first part of the romImage which in turn loads the rest the kernel
810 image to RAM using the MMCIF hardware block.
811
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812choice
813 prompt "Kernel command line"
814 optional
815 default CMDLINE_OVERWRITE
816 help
817 Setting this option allows the kernel command line arguments
818 to be set.
819
820config CMDLINE_OVERWRITE
821 bool "Overwrite bootloader kernel arguments"
822 help
823 Given string will overwrite any arguments passed in by
824 a bootloader.
825
826config CMDLINE_EXTEND
827 bool "Extend bootloader kernel arguments"
828 help
829 Given string will be concatenated with arguments passed in
830 by a bootloader.
831
832endchoice
1da177e4 833
cad82448 834config CMDLINE
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835 string "Kernel command line arguments string"
836 depends on CMDLINE_OVERWRITE || CMDLINE_EXTEND
cad82448 837 default "console=ttySC1,115200"
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838
839endmenu
840
cad82448 841menu "Bus options"
1da177e4 842
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843config SUPERHYWAY
844 tristate "SuperHyway Bus support"
845 depends on CPU_SUBTYPE_SH4_202
1da177e4 846
17be2d2b 847config MAPLE
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848 bool "Maple Bus support"
849 depends on SH_DREAMCAST
850 help
851 The Maple Bus is SEGA's serial communication bus for peripherals
852 on the Dreamcast. Without this bus support you won't be able to
853 get your Dreamcast keyboard etc to work, so most users
854 probably want to say 'Y' here, unless you are only using the
855 Dreamcast with a serial line terminal or a remote network
856 connection.
17be2d2b 857
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858config PCI
859 bool "PCI support"
860 depends on SYS_SUPPORTS_PCI
320e68da 861 select PCI_DOMAINS
43db595e 862 select GENERIC_PCI_IOMAP
1e05b62a 863 select NO_GENERIC_PCI_IOPORT_MAP
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864 help
865 Find out whether you have a PCI motherboard. PCI is the name of a
866 bus system, i.e. the way the CPU talks to the other stuff inside
867 your box. If you have PCI, say Y, otherwise N.
1da177e4 868
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869config PCI_DOMAINS
870 bool
871
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872source "drivers/pci/pcie/Kconfig"
873
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874source "drivers/pci/Kconfig"
875
876source "drivers/pcmcia/Kconfig"
877
878source "drivers/pci/hotplug/Kconfig"
879
880endmenu
881
882menu "Executable file formats"
883
884source "fs/Kconfig.binfmt"
885
886endmenu
887
3aa770e7 888menu "Power management options (EXPERIMENTAL)"
af998a9a 889depends on EXPERIMENTAL
f4cb5700 890
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891source "kernel/power/Kconfig"
892
893source "drivers/cpuidle/Kconfig"
3aa770e7 894
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895endmenu
896
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897source "net/Kconfig"
898
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899source "drivers/Kconfig"
900
901source "fs/Kconfig"
902
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903source "arch/sh/Kconfig.debug"
904
905source "security/Kconfig"
906
907source "crypto/Kconfig"
908
909source "lib/Kconfig"