kbuild: migrate all arch to the kconfig mainmenu upgrade
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / arch / sh / Kconfig
CommitLineData
1da177e4 1config SUPERH
ea0e1a9a 2 def_bool y
7a440c95 3 select EMBEDDED
9483a578 4 select HAVE_CLK
86e4dd5a 5 select HAVE_IDE if HAS_IOPORT
95f72d1e 6 select HAVE_MEMBLOCK
42d4b839 7 select HAVE_OPROFILE
9de90ac2 8 select HAVE_GENERIC_DMA_COHERENT
d7b01f78 9 select HAVE_ARCH_TRACEHOOK
f802d969 10 select HAVE_DMA_API_DEBUG
73c926be 11 select HAVE_DMA_ATTRS
cdd6c482 12 select HAVE_PERF_EVENTS
72f0c137 13 select PERF_USE_VMALLOC
df8ce259 14 select HAVE_KERNEL_GZIP
07e88e1b
PM
15 select HAVE_KERNEL_BZIP2
16 select HAVE_KERNEL_LZMA
c7b16efb 17 select HAVE_KERNEL_LZO
a74f7e04 18 select HAVE_SYSCALL_TRACEPOINTS
6eac1af0 19 select RTC_LIB
f01789c6 20 select GENERIC_ATOMIC64
1da177e4
LT
21 help
22 The SuperH is a RISC processor targeted for use in embedded systems
23 and consumer electronics; it was also used in the Sega Dreamcast
24 gaming console. The SuperH port has a home page at
25 <http://www.linux-sh.org/>.
26
39d28a2d 27config SUPERH32
3cc000b5 28 def_bool ARCH = "sh"
d39f5450
CS
29 select HAVE_KPROBES
30 select HAVE_KRETPROBES
6d63e73d 31 select HAVE_IOREMAP_PROT if MMU && !X2TLB
694f94f2 32 select HAVE_FUNCTION_TRACER
fad57feb
MF
33 select HAVE_FTRACE_MCOUNT_RECORD
34 select HAVE_DYNAMIC_FTRACE
c1340c05 35 select HAVE_FUNCTION_TRACE_MCOUNT_TEST
e4b053d9 36 select HAVE_FTRACE_NMI_ENTER if DYNAMIC_FTRACE
327933f5 37 select HAVE_FUNCTION_GRAPH_TRACER
ab6e570b 38 select HAVE_ARCH_KGDB
6fbfe8d7 39 select HAVE_HW_BREAKPOINT
0102752e 40 select HAVE_MIXED_BREAKPOINTS_REGS
6c0ee6a4 41 select PERF_EVENTS if HAVE_HW_BREAKPOINT
8dafc346 42 select ARCH_HIBERNATION_POSSIBLE if MMU
ea0e1a9a
PM
43
44config SUPERH64
3cc000b5 45 def_bool ARCH = "sh64"
39d28a2d 46
f42b7e3d
PM
47config ARCH_DEFCONFIG
48 string
49 default "arch/sh/configs/shx3_defconfig" if SUPERH32
50 default "arch/sh/configs/cayman_defconfig" if SUPERH64
51
1da177e4 52config RWSEM_GENERIC_SPINLOCK
d7ef4fb3 53 def_bool y
1da177e4
LT
54
55config RWSEM_XCHGADD_ALGORITHM
56 bool
57
fa691511
PM
58config GENERIC_BUG
59 def_bool y
a82d53ec 60 depends on BUG && SUPERH32
fa691511 61
3767f3f1
PM
62config GENERIC_CSUM
63 def_bool y
64 depends on SUPERH64
65
e2268c71 66config GENERIC_FIND_NEXT_BIT
d7ef4fb3 67 def_bool y
e2268c71
AM
68
69config GENERIC_HWEIGHT
d7ef4fb3 70 def_bool y
e2268c71 71
1da177e4 72config GENERIC_HARDIRQS
d7ef4fb3 73 def_bool y
1da177e4 74
5093c9a4
PM
75config GENERIC_HARDIRQS_NO__DO_IRQ
76 def_bool y
77
2eb2a436
PM
78config IRQ_PER_CPU
79 def_bool y
80
4b842c85
PM
81config SPARSE_IRQ
82 def_bool y
83 depends on SUPERH32
84
2967dab1
MD
85config GENERIC_GPIO
86 def_bool n
87
1da177e4 88config GENERIC_CALIBRATE_DELAY
cf204fa7 89 bool
1da177e4 90
cad82448
PM
91config GENERIC_IOMAP
92 bool
93
45882145 94config GENERIC_TIME
75634311 95 def_bool y
45882145 96
57be2b48 97config GENERIC_CLOCKEVENTS
938edae1 98 def_bool y
57be2b48 99
8c24594d
PM
100config GENERIC_CLOCKEVENTS_BROADCAST
101 bool
102
6d134b9e
PM
103config GENERIC_CMOS_UPDATE
104 def_bool y
105 depends on SH_SH03 || SH_DREAMCAST
106
bdcab87b
PM
107config GENERIC_LOCKBREAK
108 def_bool y
109 depends on SMP && PREEMPT
110
357d5946
PM
111config SYS_SUPPORTS_PM
112 bool
af998a9a
MD
113 depends on !SMP
114
115config ARCH_SUSPEND_POSSIBLE
116 def_bool n
117
118config ARCH_HIBERNATION_POSSIBLE
119 def_bool n
357d5946 120
0a9b0db1
PM
121config SYS_SUPPORTS_APM_EMULATION
122 bool
af998a9a 123 select ARCH_SUSPEND_POSSIBLE
357d5946 124
ffb4a73d
PM
125config SYS_SUPPORTS_HUGETLBFS
126 bool
127
357d5946
PM
128config SYS_SUPPORTS_SMP
129 bool
130
131config SYS_SUPPORTS_NUMA
132 bool
133
134config SYS_SUPPORTS_PCI
135 bool
0a9b0db1 136
f5ad881b
PM
137config SYS_SUPPORTS_CMT
138 bool
139
d5ed4c2e
MD
140config SYS_SUPPORTS_MTU2
141 bool
142
9570ef20
MD
143config SYS_SUPPORTS_TMU
144 bool
145
afbfb52e 146config STACKTRACE_SUPPORT
d7ef4fb3 147 def_bool y
afbfb52e
PM
148
149config LOCKDEP_SUPPORT
d7ef4fb3 150 def_bool y
afbfb52e 151
5a89f1ad
PM
152config HAVE_LATENCYTOP_SUPPORT
153 def_bool y
5a89f1ad 154
f0d1b0b3 155config ARCH_HAS_ILOG2_U32
d7ef4fb3 156 def_bool n
f0d1b0b3
DH
157
158config ARCH_HAS_ILOG2_U64
d7ef4fb3 159 def_bool n
f0d1b0b3 160
e257ad06
PM
161config ARCH_NO_VIRT_TO_BUS
162 def_bool y
163
e869a90e
PM
164config ARCH_HAS_DEFAULT_IDLE
165 def_bool y
166
2e046b94
PM
167config ARCH_HAS_CPU_IDLE_WAIT
168 def_bool y
169
86e4dd5a
PM
170config NO_IOPORT
171 bool
172
e7cc9a73
MD
173config IO_TRAPPED
174 bool
175
01be5d63
PM
176config DMA_COHERENT
177 bool
178
179config DMA_NONCOHERENT
180 def_bool !DMA_COHERENT
181
5cabbb62
FT
182config NEED_DMA_MAP_STATE
183 def_bool DMA_NONCOHERENT
184
18e98307
FT
185config NEED_SG_DMA_LENGTH
186 def_bool y
187
1da177e4
LT
188source "init/Kconfig"
189
dc52ddc0
MH
190source "kernel/Kconfig.freezer"
191
1da177e4
LT
192menu "System type"
193
b5f42db0
PM
194#
195# Processor families
196#
197config CPU_SH2
198 bool
199
200config CPU_SH2A
201 bool
202 select CPU_SH2
203
204config CPU_SH3
205 bool
206 select CPU_HAS_INTEVT
207 select CPU_HAS_SR_RB
4fa48e17 208 select SYS_SUPPORTS_TMU
b5f42db0
PM
209
210config CPU_SH4
211 bool
212 select CPU_HAS_INTEVT
213 select CPU_HAS_SR_RB
b5f42db0 214 select CPU_HAS_FPU if !CPU_SH4AL_DSP
4fa48e17 215 select SYS_SUPPORTS_TMU
ffb4a73d 216 select SYS_SUPPORTS_HUGETLBFS if MMU
b5f42db0
PM
217
218config CPU_SH4A
219 bool
220 select CPU_SH4
221
222config CPU_SH4AL_DSP
223 bool
224 select CPU_SH4A
225 select CPU_HAS_DSP
226
ea0e1a9a
PM
227config CPU_SH5
228 bool
229 select CPU_HAS_FPU
add47067 230 select SYS_SUPPORTS_TMU
ffb4a73d 231 select SYS_SUPPORTS_HUGETLBFS if MMU
ea0e1a9a 232
b5f42db0
PM
233config CPU_SHX2
234 bool
235
236config CPU_SHX3
237 bool
01be5d63 238 select DMA_COHERENT
4b478ee2
PM
239 select SYS_SUPPORTS_SMP
240 select SYS_SUPPORTS_NUMA
b5f42db0 241
dc65a977
PM
242config ARCH_SHMOBILE
243 bool
77594912 244 select ARCH_SUSPEND_POSSIBLE
ac2c596b
MD
245 select PM
246 select PM_RUNTIME
dc65a977 247
3cc000b5
PM
248if SUPERH32
249
b5f42db0
PM
250choice
251 prompt "Processor sub-type selection"
252
253#
254# Processor subtypes
255#
256
257# SH-2 Processor Support
258
259config CPU_SUBTYPE_SH7619
260 bool "Support SH7619 processor"
261 select CPU_SH2
f5ad881b 262 select SYS_SUPPORTS_CMT
b5f42db0
PM
263
264# SH-2A Processor Support
265
2825999e
PG
266config CPU_SUBTYPE_SH7201
267 bool "Support SH7201 processor"
268 select CPU_SH2A
269 select CPU_HAS_FPU
da107c6e 270 select SYS_SUPPORTS_MTU2
2825999e 271
6d01f510
PM
272config CPU_SUBTYPE_SH7203
273 bool "Support SH7203 processor"
274 select CPU_SH2A
74d99a5e 275 select CPU_HAS_FPU
f5ad881b 276 select SYS_SUPPORTS_CMT
da107c6e 277 select SYS_SUPPORTS_MTU2
6d01f510 278
b5f42db0
PM
279config CPU_SUBTYPE_SH7206
280 bool "Support SH7206 processor"
281 select CPU_SH2A
f5ad881b 282 select SYS_SUPPORTS_CMT
da107c6e 283 select SYS_SUPPORTS_MTU2
b5f42db0 284
a8f67f4b
PM
285config CPU_SUBTYPE_SH7263
286 bool "Support SH7263 processor"
287 select CPU_SH2A
74d99a5e 288 select CPU_HAS_FPU
f5ad881b 289 select SYS_SUPPORTS_CMT
da107c6e 290 select SYS_SUPPORTS_MTU2
a8f67f4b 291
2ad69908
PM
292config CPU_SUBTYPE_MXG
293 bool "Support MX-G processor"
294 select CPU_SH2A
da107c6e 295 select SYS_SUPPORTS_MTU2
2ad69908
PM
296 help
297 Select MX-G if running on an R8A03022BG part.
298
b5f42db0
PM
299# SH-3 Processor Support
300
301config CPU_SUBTYPE_SH7705
302 bool "Support SH7705 processor"
303 select CPU_SH3
304
305config CPU_SUBTYPE_SH7706
306 bool "Support SH7706 processor"
307 select CPU_SH3
308 help
309 Select SH7706 if you have a 133 Mhz SH-3 HD6417706 CPU.
310
311config CPU_SUBTYPE_SH7707
312 bool "Support SH7707 processor"
313 select CPU_SH3
314 help
315 Select SH7707 if you have a 60 Mhz SH-3 HD6417707 CPU.
316
317config CPU_SUBTYPE_SH7708
318 bool "Support SH7708 processor"
319 select CPU_SH3
320 help
321 Select SH7708 if you have a 60 Mhz SH-3 HD6417708S or
322 if you have a 100 Mhz SH-3 HD6417708R CPU.
323
324config CPU_SUBTYPE_SH7709
325 bool "Support SH7709 processor"
326 select CPU_SH3
327 help
328 Select SH7709 if you have a 80 Mhz SH-3 HD6417709 CPU.
329
330config CPU_SUBTYPE_SH7710
331 bool "Support SH7710 processor"
332 select CPU_SH3
333 select CPU_HAS_DSP
334 help
335 Select SH7710 if you have a SH3-DSP SH7710 CPU.
336
337config CPU_SUBTYPE_SH7712
338 bool "Support SH7712 processor"
339 select CPU_SH3
340 select CPU_HAS_DSP
341 help
342 Select SH7712 if you have a SH3-DSP SH7712 CPU.
343
344config CPU_SUBTYPE_SH7720
345 bool "Support SH7720 processor"
346 select CPU_SH3
347 select CPU_HAS_DSP
2b23a882 348 select SYS_SUPPORTS_CMT
b5f42db0
PM
349 help
350 Select SH7720 if you have a SH3-DSP SH7720 CPU.
351
31a49c4b
YS
352config CPU_SUBTYPE_SH7721
353 bool "Support SH7721 processor"
354 select CPU_SH3
355 select CPU_HAS_DSP
2b23a882 356 select SYS_SUPPORTS_CMT
31a49c4b
YS
357 help
358 Select SH7721 if you have a SH3-DSP SH7721 CPU.
359
b5f42db0
PM
360# SH-4 Processor Support
361
362config CPU_SUBTYPE_SH7750
363 bool "Support SH7750 processor"
364 select CPU_SH4
365 help
366 Select SH7750 if you have a 200 Mhz SH-4 HD6417750 CPU.
367
368config CPU_SUBTYPE_SH7091
369 bool "Support SH7091 processor"
370 select CPU_SH4
371 help
372 Select SH7091 if you have an SH-4 based Sega device (such as
373 the Dreamcast, Naomi, and Naomi 2).
374
375config CPU_SUBTYPE_SH7750R
376 bool "Support SH7750R processor"
377 select CPU_SH4
378
379config CPU_SUBTYPE_SH7750S
380 bool "Support SH7750S processor"
381 select CPU_SH4
382
383config CPU_SUBTYPE_SH7751
384 bool "Support SH7751 processor"
385 select CPU_SH4
386 help
387 Select SH7751 if you have a 166 Mhz SH-4 HD6417751 CPU,
388 or if you have a HD6417751R CPU.
389
390config CPU_SUBTYPE_SH7751R
391 bool "Support SH7751R processor"
392 select CPU_SH4
393
394config CPU_SUBTYPE_SH7760
395 bool "Support SH7760 processor"
396 select CPU_SH4
397
398config CPU_SUBTYPE_SH4_202
399 bool "Support SH4-202 processor"
400 select CPU_SH4
401
402# SH-4A Processor Support
403
178dd0cd
PM
404config CPU_SUBTYPE_SH7723
405 bool "Support SH7723 processor"
406 select CPU_SH4A
407 select CPU_SHX2
dc65a977 408 select ARCH_SHMOBILE
178dd0cd 409 select ARCH_SPARSEMEM_ENABLE
f5ad881b 410 select SYS_SUPPORTS_CMT
178dd0cd
PM
411 help
412 Select SH7723 if you have an SH-MobileR2 CPU.
413
0207a2ef
KM
414config CPU_SUBTYPE_SH7724
415 bool "Support SH7724 processor"
416 select CPU_SH4A
417 select CPU_SHX2
59fe700d 418 select ARCH_SHMOBILE
0207a2ef
KM
419 select ARCH_SPARSEMEM_ENABLE
420 select SYS_SUPPORTS_CMT
421 help
422 Select SH7724 if you have an SH-MobileR2R CPU.
423
c01f0f1a
YS
424config CPU_SUBTYPE_SH7757
425 bool "Support SH7757 processor"
426 select CPU_SH4A
427 select CPU_SHX2
428 help
429 Select SH7757 if you have a SH4A SH7757 CPU.
430
7d740a06
YS
431config CPU_SUBTYPE_SH7763
432 bool "Support SH7763 processor"
433 select CPU_SH4A
434 help
435 Select SH7763 if you have a SH4A SH7763(R5S77631) CPU.
436
b5f42db0
PM
437config CPU_SUBTYPE_SH7770
438 bool "Support SH7770 processor"
439 select CPU_SH4A
440
441config CPU_SUBTYPE_SH7780
442 bool "Support SH7780 processor"
443 select CPU_SH4A
444
445config CPU_SUBTYPE_SH7785
446 bool "Support SH7785 processor"
447 select CPU_SH4A
448 select CPU_SHX2
55ba99eb
KM
449 select ARCH_SPARSEMEM_ENABLE
450 select SYS_SUPPORTS_NUMA
451
452config CPU_SUBTYPE_SH7786
453 bool "Support SH7786 processor"
454 select CPU_SH4A
37042fbd 455 select CPU_SHX3
8263a67e 456 select CPU_HAS_PTEAEX
2eb2a436 457 select GENERIC_CLOCKEVENTS_BROADCAST if SMP
b5f42db0
PM
458
459config CPU_SUBTYPE_SHX3
460 bool "Support SH-X3 processor"
461 select CPU_SH4A
462 select CPU_SHX3
5840263e 463 select GENERIC_CLOCKEVENTS_BROADCAST if SMP
b5f42db0
PM
464
465# SH4AL-DSP Processor Support
466
467config CPU_SUBTYPE_SH7343
468 bool "Support SH7343 processor"
469 select CPU_SH4AL_DSP
dc65a977 470 select ARCH_SHMOBILE
f5ad881b 471 select SYS_SUPPORTS_CMT
b5f42db0
PM
472
473config CPU_SUBTYPE_SH7722
474 bool "Support SH7722 processor"
475 select CPU_SH4AL_DSP
476 select CPU_SHX2
dc65a977 477 select ARCH_SHMOBILE
b5f42db0
PM
478 select ARCH_SPARSEMEM_ENABLE
479 select SYS_SUPPORTS_NUMA
f5ad881b 480 select SYS_SUPPORTS_CMT
9109a30e
MD
481
482config CPU_SUBTYPE_SH7366
483 bool "Support SH7366 processor"
484 select CPU_SH4AL_DSP
485 select CPU_SHX2
dc65a977 486 select ARCH_SHMOBILE
9109a30e
MD
487 select ARCH_SPARSEMEM_ENABLE
488 select SYS_SUPPORTS_NUMA
f5ad881b 489 select SYS_SUPPORTS_CMT
b5f42db0 490
3cc000b5
PM
491endchoice
492
493endif
494
495if SUPERH64
496
497choice
498 prompt "Processor sub-type selection"
499
ea0e1a9a
PM
500# SH-5 Processor Support
501
502config CPU_SUBTYPE_SH5_101
503 bool "Support SH5-101 processor"
504 select CPU_SH5
505
506config CPU_SUBTYPE_SH5_103
507 bool "Support SH5-103 processor"
8ef97dd7 508 select CPU_SH5
ea0e1a9a 509
b5f42db0
PM
510endchoice
511
3cc000b5
PM
512endif
513
f3d22298 514source "arch/sh/mm/Kconfig"
939a24a6 515
4690bdc7 516source "arch/sh/Kconfig.cpu"
f3d22298 517
939a24a6 518source "arch/sh/boards/Kconfig"
32351a28 519
32351a28
PM
520menu "Timer and clock configuration"
521
9570ef20
MD
522config SH_TIMER_TMU
523 bool "TMU timer driver"
f19900b2 524 depends on SYS_SUPPORTS_TMU
9570ef20 525 default y
9570ef20
MD
526 help
527 This enables the build of the TMU timer driver.
528
f5ad881b 529config SH_TIMER_CMT
f425752f
MD
530 bool "CMT timer driver"
531 depends on SYS_SUPPORTS_CMT
532 default y
f425752f
MD
533 help
534 This enables build of the CMT timer driver.
f5ad881b 535
d5ed4c2e
MD
536config SH_TIMER_MTU2
537 bool "MTU2 timer driver"
3280c886 538 depends on SYS_SUPPORTS_MTU2
d5ed4c2e 539 default y
d5ed4c2e
MD
540 help
541 This enables build of the MTU2 timer driver.
542
cad82448
PM
543config SH_PCLK_FREQ
544 int "Peripheral clock frequency (in Hz)"
8152a74b 545 depends on SH_CLK_CPG_LEGACY
9d4436a6 546 default "31250000" if CPU_SUBTYPE_SH7619
8152a74b
PM
547 default "33333333" if CPU_SUBTYPE_SH7770 || \
548 CPU_SUBTYPE_SH7760 || \
549 CPU_SUBTYPE_SH7705 || \
550 CPU_SUBTYPE_SH7203 || \
551 CPU_SUBTYPE_SH7206 || \
552 CPU_SUBTYPE_SH7263 || \
43a1839c 553 CPU_SUBTYPE_MXG
05627486 554 default "60000000" if CPU_SUBTYPE_SH7751 || CPU_SUBTYPE_SH7751R
cad82448 555 default "66000000" if CPU_SUBTYPE_SH4_202
05627486 556 default "50000000"
1da177e4 557 help
cad82448
PM
558 This option is used to specify the peripheral clock frequency.
559 This is necessary for determining the reference clock value on
560 platforms lacking an RTC.
1da177e4 561
36aa1e32
PM
562config SH_CLK_CPG
563 def_bool y
564
253b0887 565config SH_CLK_CPG_LEGACY
36aa1e32 566 depends on SH_CLK_CPG
43a1839c
PM
567 def_bool y if !CPU_SUBTYPE_SH7785 && !ARCH_SHMOBILE && \
568 !CPU_SUBTYPE_SH7786
253b0887 569
9d4436a6
YS
570config SH_CLK_MD
571 int "CPU Mode Pin Setting"
6d01f510 572 depends on CPU_SH2
357d5946
PM
573 default 6 if CPU_SUBTYPE_SH7206
574 default 5 if CPU_SUBTYPE_SH7619
575 default 0
9d4436a6 576 help
11cbb70e 577 MD2 - MD0 pin setting.
9d4436a6 578
57be2b48
PM
579source "kernel/time/Kconfig"
580
32351a28
PM
581endmenu
582
cad82448
PM
583menu "CPU Frequency scaling"
584
585source "drivers/cpufreq/Kconfig"
1da177e4 586
cad82448
PM
587config SH_CPU_FREQ
588 tristate "SuperH CPU Frequency driver"
cb5ec75b 589 depends on CPU_FREQ
cad82448 590 select CPU_FREQ_TABLE
1da177e4 591 help
8a655053
PM
592 This adds the cpufreq driver for SuperH. Any CPU that supports
593 clock rate rounding through the clock framework can use this
594 driver. While it will make the kernel slightly larger, this is
595 harmless for CPUs that don't support rate rounding. The driver
596 will also generate a notice in the boot log before disabling
597 itself if the CPU in question is not capable of rate rounding.
1da177e4 598
cad82448 599 For details, take a look at <file:Documentation/cpu-freq>.
1da177e4
LT
600
601 If unsure, say N.
602
cad82448
PM
603endmenu
604
9f5e8eee
PM
605source "arch/sh/drivers/Kconfig"
606
cad82448 607endmenu
1da177e4 608
cad82448
PM
609menu "Kernel features"
610
91b91d01
PM
611source kernel/Kconfig.hz
612
cad82448
PM
613config KEXEC
614 bool "kexec system call (EXPERIMENTAL)"
f36b59d1 615 depends on SUPERH32 && EXPERIMENTAL && MMU
1da177e4 616 help
cad82448
PM
617 kexec is a system call that implements the ability to shutdown your
618 current kernel, and to start another kernel. It is like a reboot
1f1332f7 619 but it is independent of the system firmware. And like a reboot
cad82448
PM
620 you can start any kernel with it, not just Linux.
621
1f1332f7 622 The name comes from the similarity to the exec system call.
cad82448
PM
623
624 It is an ongoing process to be certain the hardware in a machine
625 is properly shutdown, so do not be surprised if this code does not
626 initially work for you. It may help to enable device hotplugging
627 support. As of this writing the exact hardware interface is
628 strongly in flux, so no good recommendation can be made.
629
4d5ade5b
PM
630config CRASH_DUMP
631 bool "kernel crash dumps (EXPERIMENTAL)"
d523e1ae 632 depends on SUPERH32 && EXPERIMENTAL && BROKEN_ON_SMP
4d5ade5b
PM
633 help
634 Generate crash dump after being started by kexec.
635 This should be normally only set in special crash dump kernels
636 which are loaded in the main kernel with kexec-tools into
637 a specially reserved region and then later executed after
638 a crash by kdump/kexec. The crash dump kernel must be compiled
639 to a memory address not used by the main kernel using
640 MEMORY_START.
641
642 For more details see Documentation/kdump/kdump.txt
643
b7cf6ddc
MD
644config KEXEC_JUMP
645 bool "kexec jump (EXPERIMENTAL)"
646 depends on SUPERH32 && KEXEC && HIBERNATION && EXPERIMENTAL
647 help
648 Jump between original kernel and kexeced kernel and invoke
649 code via KEXEC
650
c4637d47
PM
651config SECCOMP
652 bool "Enable seccomp to safely compute untrusted bytecode"
653 depends on PROC_FS
c4637d47
PM
654 help
655 This kernel feature is useful for number crunching applications
656 that may need to compute untrusted bytecode during their
657 execution. By using pipes or other transports made available to
658 the process as file descriptors supporting the read/write
659 syscalls, it's possible to isolate those applications in
660 their own address space using seccomp. Once seccomp is
661 enabled via prctl, it cannot be disabled and the task is only
662 allowed to execute a few safe syscalls defined by each seccomp
663 mode.
664
665 If unsure, say N.
666
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667config SMP
668 bool "Symmetric multi-processing support"
357d5946 669 depends on SYS_SUPPORTS_SMP
490f5de5 670 select USE_GENERIC_SMP_HELPERS
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671 ---help---
672 This enables support for systems with more than one CPU. If you have
673 a system with only one CPU, like most personal computers, say N. If
674 you have a system with more than one CPU, say Y.
675
676 If you say N here, the kernel will run on single and multiprocessor
677 machines, but will use only one CPU of a multiprocessor machine. If
678 you say Y here, the kernel will run on many, but not all,
679 singleprocessor machines. On a singleprocessor machine, the kernel
680 will run faster if you say N here.
681
682 People using multiprocessor machines who say Y here should also say
683 Y to "Enhanced Real Time Clock Support", below.
684
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685 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
686 available at <http://www.tldp.org/docs.html#howto>.
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687
688 If you don't know what to do here, say N.
689
690config NR_CPUS
691 int "Maximum number of CPUs (2-32)"
692 range 2 32
693 depends on SMP
2eb2a436 694 default "4" if CPU_SUBTYPE_SHX3
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695 default "2"
696 help
697 This allows you to specify the maximum number of CPUs which this
698 kernel will support. The maximum supported value is 32 and the
699 minimum value which makes sense is 2.
700
701 This is purely to save memory - each supported CPU adds
702 approximately eight kilobytes to the kernel image.
703
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704config HOTPLUG_CPU
705 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
706 depends on SMP && HOTPLUG && EXPERIMENTAL
707 help
708 Say Y here to experiment with turning CPUs off and on. CPUs
709 can be controlled through /sys/devices/system/cpu.
710
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711source "kernel/Kconfig.preempt"
712
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713config GUSA
714 def_bool y
1efe4ce3 715 depends on !SMP && SUPERH32
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716 help
717 This enables support for gUSA (general UserSpace Atomicity).
718 This is the default implementation for both UP and non-ll/sc
719 CPUs, and is used by the libc, amongst others.
720
721 For additional information, design information can be found
722 in <http://lc.linux.or.jp/lc2002/papers/niibe0919p.pdf>.
723
724 This should only be disabled for special cases where alternate
725 atomicity implementations exist.
726
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727config GUSA_RB
728 bool "Implement atomic operations by roll-back (gRB) (EXPERIMENTAL)"
729 depends on GUSA && CPU_SH3 || (CPU_SH4 && !CPU_SH4A)
730 help
731 Enabling this option will allow the kernel to implement some
692105b8 732 atomic operations using a software implementation of load-locked/
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733 store-conditional (LLSC). On machines which do not have hardware
734 LLSC, this should be more efficient than the other alternative of
692105b8 735 disabling interrupts around the atomic sequence.
1efe4ce3 736
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737source "drivers/sh/Kconfig"
738
cad82448 739endmenu
1da177e4 740
cad82448 741menu "Boot options"
1da177e4 742
cad82448 743config ZERO_PAGE_OFFSET
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744 hex
745 default "0x00010000" if PAGE_SIZE_64KB || SH_RTS7751R2D || \
746 SH_7751_SOLUTION_ENGINE
747 default "0x00004000" if PAGE_SIZE_16KB || SH_SH03
7a847f81 748 default "0x00002000" if PAGE_SIZE_8KB
cad82448 749 default "0x00001000"
1da177e4 750 help
cad82448 751 This sets the default offset of zero page.
1da177e4 752
cad82448 753config BOOT_LINK_OFFSET
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754 hex
755 default "0x00210000" if SH_SHMIN
a2e76c80 756 default "0x00400000" if SH_CAYMAN
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757 default "0x00810000" if SH_7780_SOLUTION_ENGINE
758 default "0x009e0000" if SH_TITAN
759 default "0x01800000" if SH_SDK7780
760 default "0x02000000" if SH_EDOSK7760
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761 default "0x00800000"
762 help
763 This option allows you to set the link address offset of the zImage.
764 This can be useful if you are on a board which has a small amount of
765 memory.
1da177e4 766
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767config ENTRY_OFFSET
768 hex
769 default "0x00001000" if PAGE_SIZE_4KB
770 default "0x00002000" if PAGE_SIZE_8KB
771 default "0x00004000" if PAGE_SIZE_16KB
772 default "0x00010000" if PAGE_SIZE_64KB
773 default "0x00000000"
774
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775config ROMIMAGE_MMCIF
776 bool "Include MMCIF loader in romImage (EXPERIMENTAL)"
777 depends on CPU_SUBTYPE_SH7724 && EXPERIMENTAL
778 help
779 Say Y here to include experimental MMCIF loading code in
780 romImage. With this enabled it is possible to write the romImage
781 kernel image to an MMC card and boot the kernel straight from
782 the reset vector. At reset the processor Mask ROM will load the
783 first part of the romImage which in turn loads the rest the kernel
784 image to RAM using the MMCIF hardware block.
785
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786choice
787 prompt "Kernel command line"
788 optional
789 default CMDLINE_OVERWRITE
790 help
791 Setting this option allows the kernel command line arguments
792 to be set.
793
794config CMDLINE_OVERWRITE
795 bool "Overwrite bootloader kernel arguments"
796 help
797 Given string will overwrite any arguments passed in by
798 a bootloader.
799
800config CMDLINE_EXTEND
801 bool "Extend bootloader kernel arguments"
802 help
803 Given string will be concatenated with arguments passed in
804 by a bootloader.
805
806endchoice
1da177e4 807
cad82448 808config CMDLINE
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809 string "Kernel command line arguments string"
810 depends on CMDLINE_OVERWRITE || CMDLINE_EXTEND
cad82448 811 default "console=ttySC1,115200"
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812
813endmenu
814
cad82448 815menu "Bus options"
1da177e4 816
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817config SUPERHYWAY
818 tristate "SuperHyway Bus support"
819 depends on CPU_SUBTYPE_SH4_202
1da177e4 820
17be2d2b 821config MAPLE
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822 bool "Maple Bus support"
823 depends on SH_DREAMCAST
824 help
825 The Maple Bus is SEGA's serial communication bus for peripherals
826 on the Dreamcast. Without this bus support you won't be able to
827 get your Dreamcast keyboard etc to work, so most users
828 probably want to say 'Y' here, unless you are only using the
829 Dreamcast with a serial line terminal or a remote network
830 connection.
17be2d2b 831
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832config PCI
833 bool "PCI support"
834 depends on SYS_SUPPORTS_PCI
320e68da 835 select PCI_DOMAINS
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836 help
837 Find out whether you have a PCI motherboard. PCI is the name of a
838 bus system, i.e. the way the CPU talks to the other stuff inside
839 your box. If you have PCI, say Y, otherwise N.
1da177e4 840
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841config PCI_DOMAINS
842 bool
843
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844source "drivers/pci/pcie/Kconfig"
845
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846source "drivers/pci/Kconfig"
847
848source "drivers/pcmcia/Kconfig"
849
850source "drivers/pci/hotplug/Kconfig"
851
852endmenu
853
854menu "Executable file formats"
855
856source "fs/Kconfig.binfmt"
857
858endmenu
859
3aa770e7 860menu "Power management options (EXPERIMENTAL)"
af998a9a 861depends on EXPERIMENTAL
f4cb5700 862
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863source "kernel/power/Kconfig"
864
865source "drivers/cpuidle/Kconfig"
3aa770e7 866
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867endmenu
868
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869source "net/Kconfig"
870
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871source "drivers/Kconfig"
872
873source "fs/Kconfig"
874
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875source "arch/sh/Kconfig.debug"
876
877source "security/Kconfig"
878
879source "crypto/Kconfig"
880
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881menuconfig VIRTUALIZATION
882 bool "Virtualization"
883 default n
884 ---help---
885 Say Y here to get to see options for using your Linux host to run other
886 operating systems inside virtual machines (guests).
887 This option alone does not add any kernel code.
888
889 If you say N, all options in this submenu will be skipped and disabled.
890
891if VIRTUALIZATION
892
893source drivers/virtio/Kconfig
894
895endif # VIRTUALIZATION
896
1da177e4 897source "lib/Kconfig"