Kconfig 18.9 KB
Newer Older
L
Linus Torvalds 已提交
1 2 3 4 5 6 7 8
#
# For a description of the syntax of this configuration file,
# see Documentation/kbuild/kconfig-language.txt.
#

mainmenu "Linux/SuperH Kernel Configuration"

config SUPERH
9
	def_bool y
P
Paul Mundt 已提交
10
	select EMBEDDED
11
	select HAVE_CLK
S
Sam Ravnborg 已提交
12
	select HAVE_IDE
M
Matt Fleming 已提交
13
	select HAVE_LMB
M
Mathieu Desnoyers 已提交
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
P
Paul Mundt 已提交
22 23
	select HAVE_KERNEL_BZIP2
	select HAVE_KERNEL_LZMA
24
	select HAVE_KERNEL_LZO
25
	select HAVE_SYSCALL_TRACEPOINTS
26
	select RTC_LIB
27
	select GENERIC_ATOMIC64
L
Linus Torvalds 已提交
28 29 30 31 32 33
	help
	  The SuperH is a RISC processor targeted for use in embedded systems
	  and consumer electronics; it was also used in the Sega Dreamcast
	  gaming console.  The SuperH port has a home page at
	  <http://www.linux-sh.org/>.

P
Paul Mundt 已提交
34
config SUPERH32
35
	def_bool ARCH = "sh"
C
Chris Smith 已提交
36 37
	select HAVE_KPROBES
	select HAVE_KRETPROBES
38
	select HAVE_IOREMAP_PROT if MMU && !X2TLB
39
	select HAVE_FUNCTION_TRACER
M
Matt Fleming 已提交
40 41
	select HAVE_FTRACE_MCOUNT_RECORD
	select HAVE_DYNAMIC_FTRACE
42
	select HAVE_FUNCTION_TRACE_MCOUNT_TEST
43
	select HAVE_FTRACE_NMI_ENTER if DYNAMIC_FTRACE
M
Matt Fleming 已提交
44
	select HAVE_FUNCTION_GRAPH_TRACER
P
Paul Mundt 已提交
45
	select HAVE_ARCH_KGDB
46
	select HAVE_HW_BREAKPOINT
47
	select HAVE_MIXED_BREAKPOINTS_REGS
48
	select PERF_EVENTS if HAVE_HW_BREAKPOINT
49
	select ARCH_HIBERNATION_POSSIBLE if MMU
50 51

config SUPERH64
52
	def_bool ARCH = "sh64"
P
Paul Mundt 已提交
53

54 55 56 57 58
config ARCH_DEFCONFIG
	string
	default "arch/sh/configs/shx3_defconfig" if SUPERH32
	default "arch/sh/configs/cayman_defconfig" if SUPERH64

L
Linus Torvalds 已提交
59
config RWSEM_GENERIC_SPINLOCK
60
	def_bool y
L
Linus Torvalds 已提交
61 62 63 64

config RWSEM_XCHGADD_ALGORITHM
	bool

P
Paul Mundt 已提交
65 66
config GENERIC_BUG
	def_bool y
67
	depends on BUG && SUPERH32
P
Paul Mundt 已提交
68

69 70 71 72
config GENERIC_CSUM
	def_bool y
	depends on SUPERH64

73
config GENERIC_FIND_NEXT_BIT
74
	def_bool y
75 76

config GENERIC_HWEIGHT
77
	def_bool y
78

L
Linus Torvalds 已提交
79
config GENERIC_HARDIRQS
80
	def_bool y
L
Linus Torvalds 已提交
81

82 83 84
config GENERIC_HARDIRQS_NO__DO_IRQ
	def_bool y

P
Paul Mundt 已提交
85 86 87
config IRQ_PER_CPU
	def_bool y

88 89 90 91
config SPARSE_IRQ
	def_bool y
	depends on SUPERH32

M
Magnus Damm 已提交
92 93 94
config GENERIC_GPIO
	def_bool n

L
Linus Torvalds 已提交
95
config GENERIC_CALIBRATE_DELAY
96
	bool
L
Linus Torvalds 已提交
97

98 99 100
config GENERIC_IOMAP
	bool

101
config GENERIC_TIME
102
	def_bool y
103

104
config GENERIC_CLOCKEVENTS
105
	def_bool y
106

107 108 109
config GENERIC_CLOCKEVENTS_BROADCAST
	bool

110 111 112 113
config GENERIC_CMOS_UPDATE
	def_bool y
	depends on SH_SH03 || SH_DREAMCAST

P
Paul Mundt 已提交
114 115 116 117
config GENERIC_LOCKBREAK
	def_bool y
	depends on SMP && PREEMPT

118 119
config SYS_SUPPORTS_PM
	bool
M
Magnus Damm 已提交
120 121 122 123 124 125 126
	depends on !SMP

config ARCH_SUSPEND_POSSIBLE
	def_bool n

config ARCH_HIBERNATION_POSSIBLE
	def_bool n
127

128 129
config SYS_SUPPORTS_APM_EMULATION
	bool
M
Magnus Damm 已提交
130
	select ARCH_SUSPEND_POSSIBLE
131

132 133 134
config SYS_SUPPORTS_HUGETLBFS
	bool

135 136 137 138 139 140 141 142
config SYS_SUPPORTS_SMP
	bool

config SYS_SUPPORTS_NUMA
	bool

config SYS_SUPPORTS_PCI
	bool
143

144 145 146
config SYS_SUPPORTS_CMT
	bool

147 148 149
config SYS_SUPPORTS_MTU2
	bool

150 151 152
config SYS_SUPPORTS_TMU
	bool

153
config STACKTRACE_SUPPORT
154
	def_bool y
155 156

config LOCKDEP_SUPPORT
157
	def_bool y
158

P
Paul Mundt 已提交
159 160 161 162
config HAVE_LATENCYTOP_SUPPORT
	def_bool y
	depends on !SMP

163
config ARCH_HAS_ILOG2_U32
164
	def_bool n
165 166

config ARCH_HAS_ILOG2_U64
167
	def_bool n
168

169 170 171
config ARCH_NO_VIRT_TO_BUS
	def_bool y

172 173 174
config ARCH_HAS_DEFAULT_IDLE
	def_bool y

175 176 177
config ARCH_HAS_CPU_IDLE_WAIT
	def_bool y

M
Magnus Damm 已提交
178 179 180
config IO_TRAPPED
	bool

181 182 183 184 185 186
config DMA_COHERENT
	bool

config DMA_NONCOHERENT
	def_bool !DMA_COHERENT

187 188 189
config NEED_DMA_MAP_STATE
	def_bool DMA_NONCOHERENT

L
Linus Torvalds 已提交
190 191
source "init/Kconfig"

192 193
source "kernel/Kconfig.freezer"

L
Linus Torvalds 已提交
194 195
menu "System type"

196 197 198 199 200 201 202 203 204 205 206 207 208 209
#
# Processor families
#
config CPU_SH2
	bool

config CPU_SH2A
	bool
	select CPU_SH2

config CPU_SH3
	bool
	select CPU_HAS_INTEVT
	select CPU_HAS_SR_RB
210
	select SYS_SUPPORTS_TMU
211 212 213 214 215 216

config CPU_SH4
	bool
	select CPU_HAS_INTEVT
	select CPU_HAS_SR_RB
	select CPU_HAS_FPU if !CPU_SH4AL_DSP
217
	select SYS_SUPPORTS_TMU
218
	select SYS_SUPPORTS_HUGETLBFS if MMU
219 220 221 222 223 224 225 226 227 228

config CPU_SH4A
	bool
	select CPU_SH4

config CPU_SH4AL_DSP
	bool
	select CPU_SH4A
	select CPU_HAS_DSP

229 230 231
config CPU_SH5
	bool
	select CPU_HAS_FPU
232
	select SYS_SUPPORTS_TMU
233
	select SYS_SUPPORTS_HUGETLBFS if MMU
234

235 236 237 238 239
config CPU_SHX2
	bool

config CPU_SHX3
	bool
240
	select DMA_COHERENT
241

242 243
config ARCH_SHMOBILE
	bool
M
Magnus Damm 已提交
244
	select ARCH_SUSPEND_POSSIBLE
245 246
	select PM
	select PM_RUNTIME
247

248 249
if SUPERH32

250 251 252 253 254 255 256 257 258 259 260 261
choice
	prompt "Processor sub-type selection"

#
# Processor subtypes
#

# SH-2 Processor Support

config CPU_SUBTYPE_SH7619
	bool "Support SH7619 processor"
	select CPU_SH2
262
	select SYS_SUPPORTS_CMT
263 264 265

# SH-2A Processor Support

266 267 268 269
config CPU_SUBTYPE_SH7201
	bool "Support SH7201 processor"
	select CPU_SH2A
	select CPU_HAS_FPU
M
Magnus Damm 已提交
270
	select SYS_SUPPORTS_MTU2
271
 
P
Paul Mundt 已提交
272 273 274
config CPU_SUBTYPE_SH7203
	bool "Support SH7203 processor"
	select CPU_SH2A
P
Paul Mundt 已提交
275
	select CPU_HAS_FPU
276
	select SYS_SUPPORTS_CMT
M
Magnus Damm 已提交
277
	select SYS_SUPPORTS_MTU2
P
Paul Mundt 已提交
278

279 280 281
config CPU_SUBTYPE_SH7206
	bool "Support SH7206 processor"
	select CPU_SH2A
282
	select SYS_SUPPORTS_CMT
M
Magnus Damm 已提交
283
	select SYS_SUPPORTS_MTU2
284

P
Paul Mundt 已提交
285 286 287
config CPU_SUBTYPE_SH7263
	bool "Support SH7263 processor"
	select CPU_SH2A
P
Paul Mundt 已提交
288
	select CPU_HAS_FPU
289
	select SYS_SUPPORTS_CMT
M
Magnus Damm 已提交
290
	select SYS_SUPPORTS_MTU2
P
Paul Mundt 已提交
291

292 293 294
config CPU_SUBTYPE_MXG
	bool "Support MX-G processor"
	select CPU_SH2A
M
Magnus Damm 已提交
295
	select SYS_SUPPORTS_MTU2
296 297 298
	help
	  Select MX-G if running on an R8A03022BG part.

299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347
# SH-3 Processor Support

config CPU_SUBTYPE_SH7705
	bool "Support SH7705 processor"
	select CPU_SH3

config CPU_SUBTYPE_SH7706
	bool "Support SH7706 processor"
	select CPU_SH3
	help
	  Select SH7706 if you have a 133 Mhz SH-3 HD6417706 CPU.

config CPU_SUBTYPE_SH7707
	bool "Support SH7707 processor"
	select CPU_SH3
	help
	  Select SH7707 if you have a  60 Mhz SH-3 HD6417707 CPU.

config CPU_SUBTYPE_SH7708
	bool "Support SH7708 processor"
	select CPU_SH3
	help
	  Select SH7708 if you have a  60 Mhz SH-3 HD6417708S or
	  if you have a 100 Mhz SH-3 HD6417708R CPU.

config CPU_SUBTYPE_SH7709
	bool "Support SH7709 processor"
	select CPU_SH3
	help
	  Select SH7709 if you have a  80 Mhz SH-3 HD6417709 CPU.

config CPU_SUBTYPE_SH7710
	bool "Support SH7710 processor"
	select CPU_SH3
	select CPU_HAS_DSP
	help
	  Select SH7710 if you have a SH3-DSP SH7710 CPU.

config CPU_SUBTYPE_SH7712
	bool "Support SH7712 processor"
	select CPU_SH3
	select CPU_HAS_DSP
	help
	  Select SH7712 if you have a SH3-DSP SH7712 CPU.

config CPU_SUBTYPE_SH7720
	bool "Support SH7720 processor"
	select CPU_SH3
	select CPU_HAS_DSP
348
	select SYS_SUPPORTS_CMT
349 350 351
	help
	  Select SH7720 if you have a SH3-DSP SH7720 CPU.

352 353 354 355
config CPU_SUBTYPE_SH7721
	bool "Support SH7721 processor"
	select CPU_SH3
	select CPU_HAS_DSP
356
	select SYS_SUPPORTS_CMT
357 358 359
	help
	  Select SH7721 if you have a SH3-DSP SH7721 CPU.

360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403
# SH-4 Processor Support

config CPU_SUBTYPE_SH7750
	bool "Support SH7750 processor"
	select CPU_SH4
	help
	  Select SH7750 if you have a 200 Mhz SH-4 HD6417750 CPU.

config CPU_SUBTYPE_SH7091
	bool "Support SH7091 processor"
	select CPU_SH4
	help
	  Select SH7091 if you have an SH-4 based Sega device (such as
	  the Dreamcast, Naomi, and Naomi 2).

config CPU_SUBTYPE_SH7750R
	bool "Support SH7750R processor"
	select CPU_SH4

config CPU_SUBTYPE_SH7750S
	bool "Support SH7750S processor"
	select CPU_SH4

config CPU_SUBTYPE_SH7751
	bool "Support SH7751 processor"
	select CPU_SH4
	help
	  Select SH7751 if you have a 166 Mhz SH-4 HD6417751 CPU,
	  or if you have a HD6417751R CPU.

config CPU_SUBTYPE_SH7751R
	bool "Support SH7751R processor"
	select CPU_SH4

config CPU_SUBTYPE_SH7760
	bool "Support SH7760 processor"
	select CPU_SH4

config CPU_SUBTYPE_SH4_202
	bool "Support SH4-202 processor"
	select CPU_SH4

# SH-4A Processor Support

404 405 406 407
config CPU_SUBTYPE_SH7723
	bool "Support SH7723 processor"
	select CPU_SH4A
	select CPU_SHX2
408
	select ARCH_SHMOBILE
409
	select ARCH_SPARSEMEM_ENABLE
410
	select SYS_SUPPORTS_CMT
411 412 413
	help
	  Select SH7723 if you have an SH-MobileR2 CPU.

414 415 416 417
config CPU_SUBTYPE_SH7724
	bool "Support SH7724 processor"
	select CPU_SH4A
	select CPU_SHX2
418
	select ARCH_SHMOBILE
419 420 421 422 423
	select ARCH_SPARSEMEM_ENABLE
	select SYS_SUPPORTS_CMT
	help
	  Select SH7724 if you have an SH-MobileR2R CPU.

424 425 426 427 428 429 430
config CPU_SUBTYPE_SH7757
	bool "Support SH7757 processor"
	select CPU_SH4A
	select CPU_SHX2
	help
	  Select SH7757 if you have a SH4A SH7757 CPU.

431 432 433 434 435 436
config CPU_SUBTYPE_SH7763
	bool "Support SH7763 processor"
	select CPU_SH4A
	help
	  Select SH7763 if you have a SH4A SH7763(R5S77631) CPU.

437 438 439 440 441 442 443 444 445 446 447 448
config CPU_SUBTYPE_SH7770
	bool "Support SH7770 processor"
	select CPU_SH4A

config CPU_SUBTYPE_SH7780
	bool "Support SH7780 processor"
	select CPU_SH4A

config CPU_SUBTYPE_SH7785
	bool "Support SH7785 processor"
	select CPU_SH4A
	select CPU_SHX2
449 450 451 452 453 454
	select ARCH_SPARSEMEM_ENABLE
	select SYS_SUPPORTS_NUMA

config CPU_SUBTYPE_SH7786
	bool "Support SH7786 processor"
	select CPU_SH4A
455
	select CPU_SHX3
456
	select CPU_HAS_PTEAEX
457 458
	select ARCH_SPARSEMEM_ENABLE
	select SYS_SUPPORTS_NUMA
P
Paul Mundt 已提交
459 460
	select SYS_SUPPORTS_SMP
	select GENERIC_CLOCKEVENTS_BROADCAST if SMP
461 462 463 464 465 466 467 468

config CPU_SUBTYPE_SHX3
	bool "Support SH-X3 processor"
	select CPU_SH4A
	select CPU_SHX3
	select ARCH_SPARSEMEM_ENABLE
	select SYS_SUPPORTS_NUMA
	select SYS_SUPPORTS_SMP
469
	select GENERIC_CLOCKEVENTS_BROADCAST if SMP
470 471 472 473 474 475

# SH4AL-DSP Processor Support

config CPU_SUBTYPE_SH7343
	bool "Support SH7343 processor"
	select CPU_SH4AL_DSP
476
	select ARCH_SHMOBILE
477
	select SYS_SUPPORTS_CMT
478 479 480 481 482

config CPU_SUBTYPE_SH7722
	bool "Support SH7722 processor"
	select CPU_SH4AL_DSP
	select CPU_SHX2
483
	select ARCH_SHMOBILE
484 485
	select ARCH_SPARSEMEM_ENABLE
	select SYS_SUPPORTS_NUMA
486
	select SYS_SUPPORTS_CMT
487 488 489 490 491

config CPU_SUBTYPE_SH7366
	bool "Support SH7366 processor"
	select CPU_SH4AL_DSP
	select CPU_SHX2
492
	select ARCH_SHMOBILE
493 494
	select ARCH_SPARSEMEM_ENABLE
	select SYS_SUPPORTS_NUMA
495
	select SYS_SUPPORTS_CMT
496

497 498 499 500 501 502 503 504 505
endchoice

endif

if SUPERH64

choice
	prompt "Processor sub-type selection"

506 507 508 509 510 511 512 513
# SH-5 Processor Support

config CPU_SUBTYPE_SH5_101
	bool "Support SH5-101 processor"
	select CPU_SH5

config CPU_SUBTYPE_SH5_103
	bool "Support SH5-103 processor"
514
	select CPU_SH5
515

516 517
endchoice

518 519
endif

P
Paul Mundt 已提交
520
source "arch/sh/mm/Kconfig"
521
 
522
source "arch/sh/Kconfig.cpu"
P
Paul Mundt 已提交
523

524
source "arch/sh/boards/Kconfig"
525 526 527

menu "Timer and clock configuration"

528 529
config SH_TIMER_TMU
	bool "TMU timer driver"
M
Magnus Damm 已提交
530
	depends on SYS_SUPPORTS_TMU
531 532 533 534
	default y
	help
	  This enables the build of the TMU timer driver.

535
config SH_TIMER_CMT
M
Magnus Damm 已提交
536 537 538 539 540
	bool "CMT timer driver"
	depends on SYS_SUPPORTS_CMT
	default y
	help
	  This enables build of the CMT timer driver.
541

542 543
config SH_TIMER_MTU2
	bool "MTU2 timer driver"
M
Magnus Damm 已提交
544
	depends on SYS_SUPPORTS_MTU2
545 546 547 548
	default y
	help
	  This enables build of the MTU2 timer driver.

549 550
config SH_PCLK_FREQ
	int "Peripheral clock frequency (in Hz)"
551
	depends on SH_CLK_CPG_LEGACY
552
	default "31250000" if CPU_SUBTYPE_SH7619
553 554 555 556 557 558
	default "33333333" if CPU_SUBTYPE_SH7770 || \
			      CPU_SUBTYPE_SH7760 || \
			      CPU_SUBTYPE_SH7705 || \
			      CPU_SUBTYPE_SH7203 || \
			      CPU_SUBTYPE_SH7206 || \
			      CPU_SUBTYPE_SH7263 || \
P
Paul Mundt 已提交
559
			      CPU_SUBTYPE_MXG
P
Paul Mundt 已提交
560
	default "60000000" if CPU_SUBTYPE_SH7751 || CPU_SUBTYPE_SH7751R
561
	default "66000000" if CPU_SUBTYPE_SH4_202
P
Paul Mundt 已提交
562
	default "50000000"
L
Linus Torvalds 已提交
563
	help
564 565 566
	  This option is used to specify the peripheral clock frequency.
	  This is necessary for determining the reference clock value on
	  platforms lacking an RTC.
L
Linus Torvalds 已提交
567

568 569 570
config SH_CLK_CPG
	def_bool y

571
config SH_CLK_CPG_LEGACY
572
	depends on SH_CLK_CPG
P
Paul Mundt 已提交
573 574
	def_bool y if !CPU_SUBTYPE_SH7785 && !ARCH_SHMOBILE && \
		      !CPU_SUBTYPE_SH7786
575

576 577
config SH_CLK_MD
	int "CPU Mode Pin Setting"
P
Paul Mundt 已提交
578
	depends on CPU_SH2
579 580 581
	default 6 if CPU_SUBTYPE_SH7206
	default 5 if CPU_SUBTYPE_SH7619
	default 0
582
	help
583
	  MD2 - MD0 pin setting.
584

585 586
source "kernel/time/Kconfig"

587 588
endmenu

589 590 591
menu "CPU Frequency scaling"

source "drivers/cpufreq/Kconfig"
L
Linus Torvalds 已提交
592

593 594
config SH_CPU_FREQ
	tristate "SuperH CPU Frequency driver"
595
	depends on CPU_FREQ
596
	select CPU_FREQ_TABLE
L
Linus Torvalds 已提交
597
	help
P
Paul Mundt 已提交
598 599 600 601 602 603
	  This adds the cpufreq driver for SuperH. Any CPU that supports
	  clock rate rounding through the clock framework can use this
	  driver. While it will make the kernel slightly larger, this is
	  harmless for CPUs that don't support rate rounding. The driver
	  will also generate a notice in the boot log before disabling
	  itself if the CPU in question is not capable of rate rounding.
L
Linus Torvalds 已提交
604

605
	  For details, take a look at <file:Documentation/cpu-freq>.
L
Linus Torvalds 已提交
606 607 608

	  If unsure, say N.

609 610
endmenu

P
Paul Mundt 已提交
611 612
source "arch/sh/drivers/Kconfig"

613
endmenu
L
Linus Torvalds 已提交
614

615 616
menu "Kernel features"

P
Paul Mundt 已提交
617 618
source kernel/Kconfig.hz

619 620
config KEXEC
	bool "kexec system call (EXPERIMENTAL)"
621
	depends on SUPERH32 && EXPERIMENTAL && MMU
L
Linus Torvalds 已提交
622
	help
623 624
	  kexec is a system call that implements the ability to shutdown your
	  current kernel, and to start another kernel.  It is like a reboot
625
	  but it is independent of the system firmware.  And like a reboot
626 627
	  you can start any kernel with it, not just Linux.

628
	  The name comes from the similarity to the exec system call.
629 630 631 632 633 634 635

	  It is an ongoing process to be certain the hardware in a machine
	  is properly shutdown, so do not be surprised if this code does not
	  initially work for you.  It may help to enable device hotplugging
	  support.  As of this writing the exact hardware interface is
	  strongly in flux, so no good recommendation can be made.

P
Paul Mundt 已提交
636 637
config CRASH_DUMP
	bool "kernel crash dumps (EXPERIMENTAL)"
638
	depends on SUPERH32 && EXPERIMENTAL
P
Paul Mundt 已提交
639 640 641 642 643 644 645 646 647 648 649
	help
	  Generate crash dump after being started by kexec.
	  This should be normally only set in special crash dump kernels
	  which are loaded in the main kernel with kexec-tools into
	  a specially reserved region and then later executed after
	  a crash by kdump/kexec. The crash dump kernel must be compiled
	  to a memory address not used by the main kernel using
	  MEMORY_START.

	  For more details see Documentation/kdump/kdump.txt

M
Magnus Damm 已提交
650 651 652 653 654 655 656
config KEXEC_JUMP
	bool "kexec jump (EXPERIMENTAL)"
	depends on SUPERH32 && KEXEC && HIBERNATION && EXPERIMENTAL
	help
	  Jump between original kernel and kexeced kernel and invoke
	  code via KEXEC

P
Paul Mundt 已提交
657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672
config SECCOMP
	bool "Enable seccomp to safely compute untrusted bytecode"
	depends on PROC_FS
	help
	  This kernel feature is useful for number crunching applications
	  that may need to compute untrusted bytecode during their
	  execution. By using pipes or other transports made available to
	  the process as file descriptors supporting the read/write
	  syscalls, it's possible to isolate those applications in
	  their own address space using seccomp. Once seccomp is
	  enabled via prctl, it cannot be disabled and the task is only
	  allowed to execute a few safe syscalls defined by each seccomp
	  mode.

	  If unsure, say N.

L
Linus Torvalds 已提交
673 674
config SMP
	bool "Symmetric multi-processing support"
675
	depends on SYS_SUPPORTS_SMP
676
	select USE_GENERIC_SMP_HELPERS
L
Linus Torvalds 已提交
677 678 679 680 681 682 683 684 685 686 687 688 689 690
	---help---
	  This enables support for systems with more than one CPU. If you have
	  a system with only one CPU, like most personal computers, say N. If
	  you have a system with more than one CPU, say Y.

	  If you say N here, the kernel will run on single and multiprocessor
	  machines, but will use only one CPU of a multiprocessor machine. If
	  you say Y here, the kernel will run on many, but not all,
	  singleprocessor machines. On a singleprocessor machine, the kernel
	  will run faster if you say N here.

	  People using multiprocessor machines who say Y here should also say
	  Y to "Enhanced Real Time Clock Support", below.

A
Adrian Bunk 已提交
691 692
	  See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
	  available at <http://www.tldp.org/docs.html#howto>.
L
Linus Torvalds 已提交
693 694 695 696 697 698 699

	  If you don't know what to do here, say N.

config NR_CPUS
	int "Maximum number of CPUs (2-32)"
	range 2 32
	depends on SMP
P
Paul Mundt 已提交
700
	default "4" if CPU_SUBTYPE_SHX3
L
Linus Torvalds 已提交
701 702 703 704 705 706 707 708 709
	default "2"
	help
	  This allows you to specify the maximum number of CPUs which this
	  kernel will support.  The maximum supported value is 32 and the
	  minimum value which makes sense is 2.

	  This is purely to save memory - each supported CPU adds
	  approximately eight kilobytes to the kernel image.

P
Paul Mundt 已提交
710 711
source "kernel/Kconfig.preempt"

P
Paul Mundt 已提交
712 713
config GUSA
	def_bool y
714
	depends on !SMP && SUPERH32
P
Paul Mundt 已提交
715 716 717 718 719 720 721 722 723 724 725
	help
	  This enables support for gUSA (general UserSpace Atomicity).
	  This is the default implementation for both UP and non-ll/sc
	  CPUs, and is used by the libc, amongst others.

	  For additional information, design information can be found 
	  in <http://lc.linux.or.jp/lc2002/papers/niibe0919p.pdf>.

	  This should only be disabled for special cases where alternate
	  atomicity implementations exist.

726 727 728 729 730
config GUSA_RB
	bool "Implement atomic operations by roll-back (gRB) (EXPERIMENTAL)"
	depends on GUSA && CPU_SH3 || (CPU_SH4 && !CPU_SH4A)
	help
	  Enabling this option will allow the kernel to implement some
731
	  atomic operations using a software implementation of load-locked/
732 733
	  store-conditional (LLSC). On machines which do not have hardware
	  LLSC, this should be more efficient than the other alternative of
734
	  disabling interrupts around the atomic sequence.
735

736
endmenu
L
Linus Torvalds 已提交
737

738
menu "Boot options"
L
Linus Torvalds 已提交
739

740
config ZERO_PAGE_OFFSET
741 742 743 744
	hex
	default "0x00010000" if PAGE_SIZE_64KB || SH_RTS7751R2D || \
				SH_7751_SOLUTION_ENGINE
	default "0x00004000" if PAGE_SIZE_16KB || SH_SH03
745
	default "0x00002000" if PAGE_SIZE_8KB
746
	default "0x00001000"
L
Linus Torvalds 已提交
747
	help
748
	  This sets the default offset of zero page.
L
Linus Torvalds 已提交
749

750
config BOOT_LINK_OFFSET
751 752
	hex
	default "0x00210000" if SH_SHMIN
753
	default "0x00400000" if SH_CAYMAN
754 755 756 757
	default "0x00810000" if SH_7780_SOLUTION_ENGINE
	default "0x009e0000" if SH_TITAN
	default "0x01800000" if SH_SDK7780
	default "0x02000000" if SH_EDOSK7760
758 759 760 761 762
	default "0x00800000"
	help
	  This option allows you to set the link address offset of the zImage.
	  This can be useful if you are on a board which has a small amount of
	  memory.
L
Linus Torvalds 已提交
763

764 765 766 767 768 769 770 771
config ENTRY_OFFSET
	hex
	default "0x00001000" if PAGE_SIZE_4KB
	default "0x00002000" if PAGE_SIZE_8KB
	default "0x00004000" if PAGE_SIZE_16KB
	default "0x00010000" if PAGE_SIZE_64KB
	default "0x00000000"

772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792
choice
	prompt "Kernel command line"
	optional
	default CMDLINE_OVERWRITE
	help
	  Setting this option allows the kernel command line arguments
	  to be set.

config CMDLINE_OVERWRITE
	bool "Overwrite bootloader kernel arguments"
	help
	  Given string will overwrite any arguments passed in by
	  a bootloader.

config CMDLINE_EXTEND
	bool "Extend bootloader kernel arguments"
	help
	  Given string will be concatenated with arguments passed in
	  by a bootloader.

endchoice
L
Linus Torvalds 已提交
793

794
config CMDLINE
795 796
	string "Kernel command line arguments string"
	depends on CMDLINE_OVERWRITE || CMDLINE_EXTEND
797
	default "console=ttySC1,115200"
L
Linus Torvalds 已提交
798 799 800

endmenu

801
menu "Bus options"
L
Linus Torvalds 已提交
802

803 804 805
config SUPERHYWAY
	tristate "SuperHyway Bus support"
	depends on CPU_SUBTYPE_SH4_202
L
Linus Torvalds 已提交
806

807
config MAPLE
808 809 810 811 812 813 814 815 816
	bool "Maple Bus support"
	depends on SH_DREAMCAST
	help
	 The Maple Bus is SEGA's serial communication bus for peripherals
	 on the Dreamcast. Without this bus support you won't be able to
	 get your Dreamcast keyboard etc to work, so most users
	 probably want to say 'Y' here, unless you are only using the
	 Dreamcast with a serial line terminal or a remote network
	 connection.
817

818 819 820
config PCI
	bool "PCI support"
	depends on SYS_SUPPORTS_PCI
P
Paul Mundt 已提交
821
	select PCI_DOMAINS
822 823 824 825
	help
	  Find out whether you have a PCI motherboard. PCI is the name of a
	  bus system, i.e. the way the CPU talks to the other stuff inside
	  your box. If you have PCI, say Y, otherwise N.
L
Linus Torvalds 已提交
826

P
Paul Mundt 已提交
827 828 829
config PCI_DOMAINS
	bool

830 831
source "drivers/pci/pcie/Kconfig"

L
Linus Torvalds 已提交
832 833 834 835 836 837 838 839 840 841 842 843 844 845
source "drivers/pci/Kconfig"

source "drivers/pcmcia/Kconfig"

source "drivers/pci/hotplug/Kconfig"

endmenu

menu "Executable file formats"

source "fs/Kconfig.binfmt"

endmenu

A
Andriy Skulysh 已提交
846
menu "Power management options (EXPERIMENTAL)"
M
Magnus Damm 已提交
847
depends on EXPERIMENTAL
J
Johannes Berg 已提交
848

M
Magnus Damm 已提交
849 850 851
source "kernel/power/Kconfig"

source "drivers/cpuidle/Kconfig"
A
Andriy Skulysh 已提交
852 853 854

endmenu

855 856
source "net/Kconfig"

L
Linus Torvalds 已提交
857 858 859 860 861 862 863 864 865 866 867
source "drivers/Kconfig"

source "fs/Kconfig"

source "arch/sh/Kconfig.debug"

source "security/Kconfig"

source "crypto/Kconfig"

source "lib/Kconfig"