Kconfig 19.5 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
config HAVE_LATENCYTOP_SUPPORT
	def_bool y

162
config ARCH_HAS_ILOG2_U32
163
	def_bool n
164 165

config ARCH_HAS_ILOG2_U64
166
	def_bool n
167

168 169 170
config ARCH_NO_VIRT_TO_BUS
	def_bool y

171 172 173
config ARCH_HAS_DEFAULT_IDLE
	def_bool y

174 175 176
config ARCH_HAS_CPU_IDLE_WAIT
	def_bool y

M
Magnus Damm 已提交
177 178 179
config IO_TRAPPED
	bool

180 181 182 183 184 185
config DMA_COHERENT
	bool

config DMA_NONCOHERENT
	def_bool !DMA_COHERENT

186 187 188
config NEED_DMA_MAP_STATE
	def_bool DMA_NONCOHERENT

L
Linus Torvalds 已提交
189 190
source "init/Kconfig"

191 192
source "kernel/Kconfig.freezer"

L
Linus Torvalds 已提交
193 194
menu "System type"

195 196 197 198 199 200 201 202 203 204 205 206 207 208
#
# 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
209
	select SYS_SUPPORTS_TMU
210 211 212 213 214 215

config CPU_SH4
	bool
	select CPU_HAS_INTEVT
	select CPU_HAS_SR_RB
	select CPU_HAS_FPU if !CPU_SH4AL_DSP
216
	select SYS_SUPPORTS_TMU
217
	select SYS_SUPPORTS_HUGETLBFS if MMU
218 219 220 221 222 223 224 225 226 227

config CPU_SH4A
	bool
	select CPU_SH4

config CPU_SH4AL_DSP
	bool
	select CPU_SH4A
	select CPU_HAS_DSP

228 229 230
config CPU_SH5
	bool
	select CPU_HAS_FPU
231
	select SYS_SUPPORTS_TMU
232
	select SYS_SUPPORTS_HUGETLBFS if MMU
233

234 235 236 237 238
config CPU_SHX2
	bool

config CPU_SHX3
	bool
239
	select DMA_COHERENT
240 241
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_NUMA
242

243 244
config ARCH_SHMOBILE
	bool
M
Magnus Damm 已提交
245
	select ARCH_SUSPEND_POSSIBLE
246 247
	select PM
	select PM_RUNTIME
248

249 250
if SUPERH32

251 252 253 254 255 256 257 258 259 260 261 262
choice
	prompt "Processor sub-type selection"

#
# Processor subtypes
#

# SH-2 Processor Support

config CPU_SUBTYPE_SH7619
	bool "Support SH7619 processor"
	select CPU_SH2
263
	select SYS_SUPPORTS_CMT
264 265 266

# SH-2A Processor Support

267 268 269 270
config CPU_SUBTYPE_SH7201
	bool "Support SH7201 processor"
	select CPU_SH2A
	select CPU_HAS_FPU
M
Magnus Damm 已提交
271
	select SYS_SUPPORTS_MTU2
272
 
P
Paul Mundt 已提交
273 274 275
config CPU_SUBTYPE_SH7203
	bool "Support SH7203 processor"
	select CPU_SH2A
P
Paul Mundt 已提交
276
	select CPU_HAS_FPU
277
	select SYS_SUPPORTS_CMT
M
Magnus Damm 已提交
278
	select SYS_SUPPORTS_MTU2
P
Paul Mundt 已提交
279

280 281 282
config CPU_SUBTYPE_SH7206
	bool "Support SH7206 processor"
	select CPU_SH2A
283
	select SYS_SUPPORTS_CMT
M
Magnus Damm 已提交
284
	select SYS_SUPPORTS_MTU2
285

P
Paul Mundt 已提交
286 287 288
config CPU_SUBTYPE_SH7263
	bool "Support SH7263 processor"
	select CPU_SH2A
P
Paul Mundt 已提交
289
	select CPU_HAS_FPU
290
	select SYS_SUPPORTS_CMT
M
Magnus Damm 已提交
291
	select SYS_SUPPORTS_MTU2
P
Paul Mundt 已提交
292

293 294 295
config CPU_SUBTYPE_MXG
	bool "Support MX-G processor"
	select CPU_SH2A
M
Magnus Damm 已提交
296
	select SYS_SUPPORTS_MTU2
297 298 299
	help
	  Select MX-G if running on an R8A03022BG part.

300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348
# 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
349
	select SYS_SUPPORTS_CMT
350 351 352
	help
	  Select SH7720 if you have a SH3-DSP SH7720 CPU.

353 354 355 356
config CPU_SUBTYPE_SH7721
	bool "Support SH7721 processor"
	select CPU_SH3
	select CPU_HAS_DSP
357
	select SYS_SUPPORTS_CMT
358 359 360
	help
	  Select SH7721 if you have a SH3-DSP SH7721 CPU.

361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404
# 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

405 406 407 408
config CPU_SUBTYPE_SH7723
	bool "Support SH7723 processor"
	select CPU_SH4A
	select CPU_SHX2
409
	select ARCH_SHMOBILE
410
	select ARCH_SPARSEMEM_ENABLE
411
	select SYS_SUPPORTS_CMT
412 413 414
	help
	  Select SH7723 if you have an SH-MobileR2 CPU.

415 416 417 418
config CPU_SUBTYPE_SH7724
	bool "Support SH7724 processor"
	select CPU_SH4A
	select CPU_SHX2
419
	select ARCH_SHMOBILE
420 421 422 423 424
	select ARCH_SPARSEMEM_ENABLE
	select SYS_SUPPORTS_CMT
	help
	  Select SH7724 if you have an SH-MobileR2R CPU.

425 426 427 428 429 430 431
config CPU_SUBTYPE_SH7757
	bool "Support SH7757 processor"
	select CPU_SH4A
	select CPU_SHX2
	help
	  Select SH7757 if you have a SH4A SH7757 CPU.

432 433 434 435 436 437
config CPU_SUBTYPE_SH7763
	bool "Support SH7763 processor"
	select CPU_SH4A
	help
	  Select SH7763 if you have a SH4A SH7763(R5S77631) CPU.

438 439 440 441 442 443 444 445 446 447 448 449
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
450 451 452 453 454 455
	select ARCH_SPARSEMEM_ENABLE
	select SYS_SUPPORTS_NUMA

config CPU_SUBTYPE_SH7786
	bool "Support SH7786 processor"
	select CPU_SH4A
456
	select CPU_SHX3
457
	select CPU_HAS_PTEAEX
P
Paul Mundt 已提交
458
	select GENERIC_CLOCKEVENTS_BROADCAST if SMP
459 460 461 462 463

config CPU_SUBTYPE_SHX3
	bool "Support SH-X3 processor"
	select CPU_SH4A
	select CPU_SHX3
464
	select GENERIC_CLOCKEVENTS_BROADCAST if SMP
465 466 467 468 469 470

# SH4AL-DSP Processor Support

config CPU_SUBTYPE_SH7343
	bool "Support SH7343 processor"
	select CPU_SH4AL_DSP
471
	select ARCH_SHMOBILE
472
	select SYS_SUPPORTS_CMT
473 474 475 476 477

config CPU_SUBTYPE_SH7722
	bool "Support SH7722 processor"
	select CPU_SH4AL_DSP
	select CPU_SHX2
478
	select ARCH_SHMOBILE
479 480
	select ARCH_SPARSEMEM_ENABLE
	select SYS_SUPPORTS_NUMA
481
	select SYS_SUPPORTS_CMT
482 483 484 485 486

config CPU_SUBTYPE_SH7366
	bool "Support SH7366 processor"
	select CPU_SH4AL_DSP
	select CPU_SHX2
487
	select ARCH_SHMOBILE
488 489
	select ARCH_SPARSEMEM_ENABLE
	select SYS_SUPPORTS_NUMA
490
	select SYS_SUPPORTS_CMT
491

492 493 494 495 496 497 498 499 500
endchoice

endif

if SUPERH64

choice
	prompt "Processor sub-type selection"

501 502 503 504 505 506 507 508
# 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"
509
	select CPU_SH5
510

511 512
endchoice

513 514
endif

P
Paul Mundt 已提交
515
source "arch/sh/mm/Kconfig"
516
 
517
source "arch/sh/Kconfig.cpu"
P
Paul Mundt 已提交
518

519
source "arch/sh/boards/Kconfig"
520 521 522

menu "Timer and clock configuration"

523 524
config SH_TIMER_TMU
	bool "TMU timer driver"
M
Magnus Damm 已提交
525
	depends on SYS_SUPPORTS_TMU
526 527 528 529
	default y
	help
	  This enables the build of the TMU timer driver.

530
config SH_TIMER_CMT
M
Magnus Damm 已提交
531 532 533 534 535
	bool "CMT timer driver"
	depends on SYS_SUPPORTS_CMT
	default y
	help
	  This enables build of the CMT timer driver.
536

537 538
config SH_TIMER_MTU2
	bool "MTU2 timer driver"
M
Magnus Damm 已提交
539
	depends on SYS_SUPPORTS_MTU2
540 541 542 543
	default y
	help
	  This enables build of the MTU2 timer driver.

544 545
config SH_PCLK_FREQ
	int "Peripheral clock frequency (in Hz)"
546
	depends on SH_CLK_CPG_LEGACY
547
	default "31250000" if CPU_SUBTYPE_SH7619
548 549 550 551 552 553
	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
554
			      CPU_SUBTYPE_MXG
P
Paul Mundt 已提交
555
	default "60000000" if CPU_SUBTYPE_SH7751 || CPU_SUBTYPE_SH7751R
556
	default "66000000" if CPU_SUBTYPE_SH4_202
P
Paul Mundt 已提交
557
	default "50000000"
L
Linus Torvalds 已提交
558
	help
559 560 561
	  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
562

563 564 565
config SH_CLK_CPG
	def_bool y

566
config SH_CLK_CPG_LEGACY
567
	depends on SH_CLK_CPG
P
Paul Mundt 已提交
568 569
	def_bool y if !CPU_SUBTYPE_SH7785 && !ARCH_SHMOBILE && \
		      !CPU_SUBTYPE_SH7786
570

571 572
config SH_CLK_MD
	int "CPU Mode Pin Setting"
P
Paul Mundt 已提交
573
	depends on CPU_SH2
574 575 576
	default 6 if CPU_SUBTYPE_SH7206
	default 5 if CPU_SUBTYPE_SH7619
	default 0
577
	help
578
	  MD2 - MD0 pin setting.
579

580 581
source "kernel/time/Kconfig"

582 583
endmenu

584 585 586
menu "CPU Frequency scaling"

source "drivers/cpufreq/Kconfig"
L
Linus Torvalds 已提交
587

588 589
config SH_CPU_FREQ
	tristate "SuperH CPU Frequency driver"
590
	depends on CPU_FREQ
591
	select CPU_FREQ_TABLE
L
Linus Torvalds 已提交
592
	help
P
Paul Mundt 已提交
593 594 595 596 597 598
	  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
599

600
	  For details, take a look at <file:Documentation/cpu-freq>.
L
Linus Torvalds 已提交
601 602 603

	  If unsure, say N.

604 605
endmenu

P
Paul Mundt 已提交
606 607
source "arch/sh/drivers/Kconfig"

608
endmenu
L
Linus Torvalds 已提交
609

610 611
menu "Kernel features"

P
Paul Mundt 已提交
612 613
source kernel/Kconfig.hz

614 615
config KEXEC
	bool "kexec system call (EXPERIMENTAL)"
616
	depends on SUPERH32 && EXPERIMENTAL && MMU
L
Linus Torvalds 已提交
617
	help
618 619
	  kexec is a system call that implements the ability to shutdown your
	  current kernel, and to start another kernel.  It is like a reboot
620
	  but it is independent of the system firmware.  And like a reboot
621 622
	  you can start any kernel with it, not just Linux.

623
	  The name comes from the similarity to the exec system call.
624 625 626 627 628 629 630

	  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
631 632
config CRASH_DUMP
	bool "kernel crash dumps (EXPERIMENTAL)"
633
	depends on SUPERH32 && EXPERIMENTAL && BROKEN_ON_SMP
P
Paul Mundt 已提交
634 635 636 637 638 639 640 641 642 643 644
	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
645 646 647 648 649 650 651
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
652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667
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
668 669
config SMP
	bool "Symmetric multi-processing support"
670
	depends on SYS_SUPPORTS_SMP
671
	select USE_GENERIC_SMP_HELPERS
L
Linus Torvalds 已提交
672 673 674 675 676 677 678 679 680 681 682 683 684 685
	---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
686 687
	  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
688 689 690 691 692 693 694

	  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
695
	default "4" if CPU_SUBTYPE_SHX3
L
Linus Torvalds 已提交
696 697 698 699 700 701 702 703 704
	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
705 706 707 708 709 710 711
config HOTPLUG_CPU
	bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
	depends on SMP && HOTPLUG && EXPERIMENTAL
	help
	  Say Y here to experiment with turning CPUs off and on.  CPUs
	  can be controlled through /sys/devices/system/cpu.

P
Paul Mundt 已提交
712 713
source "kernel/Kconfig.preempt"

P
Paul Mundt 已提交
714 715
config GUSA
	def_bool y
716
	depends on !SMP && SUPERH32
P
Paul Mundt 已提交
717 718 719 720 721 722 723 724 725 726 727
	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.

728 729 730 731 732
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
733
	  atomic operations using a software implementation of load-locked/
734 735
	  store-conditional (LLSC). On machines which do not have hardware
	  LLSC, this should be more efficient than the other alternative of
736
	  disabling interrupts around the atomic sequence.
737

P
Paul Mundt 已提交
738 739
source "drivers/sh/Kconfig"

740
endmenu
L
Linus Torvalds 已提交
741

742
menu "Boot options"
L
Linus Torvalds 已提交
743

744
config ZERO_PAGE_OFFSET
745 746 747 748
	hex
	default "0x00010000" if PAGE_SIZE_64KB || SH_RTS7751R2D || \
				SH_7751_SOLUTION_ENGINE
	default "0x00004000" if PAGE_SIZE_16KB || SH_SH03
749
	default "0x00002000" if PAGE_SIZE_8KB
750
	default "0x00001000"
L
Linus Torvalds 已提交
751
	help
752
	  This sets the default offset of zero page.
L
Linus Torvalds 已提交
753

754
config BOOT_LINK_OFFSET
755 756
	hex
	default "0x00210000" if SH_SHMIN
757
	default "0x00400000" if SH_CAYMAN
758 759 760 761
	default "0x00810000" if SH_7780_SOLUTION_ENGINE
	default "0x009e0000" if SH_TITAN
	default "0x01800000" if SH_SDK7780
	default "0x02000000" if SH_EDOSK7760
762 763 764 765 766
	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
767

768 769 770 771 772 773 774 775
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"

776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796
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
797

798
config CMDLINE
799 800
	string "Kernel command line arguments string"
	depends on CMDLINE_OVERWRITE || CMDLINE_EXTEND
801
	default "console=ttySC1,115200"
L
Linus Torvalds 已提交
802 803 804

endmenu

805
menu "Bus options"
L
Linus Torvalds 已提交
806

807 808 809
config SUPERHYWAY
	tristate "SuperHyway Bus support"
	depends on CPU_SUBTYPE_SH4_202
L
Linus Torvalds 已提交
810

811
config MAPLE
812 813 814 815 816 817 818 819 820
	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.
821

822 823 824
config PCI
	bool "PCI support"
	depends on SYS_SUPPORTS_PCI
P
Paul Mundt 已提交
825
	select PCI_DOMAINS
826 827 828 829
	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
830

P
Paul Mundt 已提交
831 832 833
config PCI_DOMAINS
	bool

834 835
source "drivers/pci/pcie/Kconfig"

L
Linus Torvalds 已提交
836 837 838 839 840 841 842 843 844 845 846 847 848 849
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
850
menu "Power management options (EXPERIMENTAL)"
M
Magnus Damm 已提交
851
depends on EXPERIMENTAL
J
Johannes Berg 已提交
852

M
Magnus Damm 已提交
853 854 855
source "kernel/power/Kconfig"

source "drivers/cpuidle/Kconfig"
A
Andriy Skulysh 已提交
856 857 858

endmenu

859 860
source "net/Kconfig"

L
Linus Torvalds 已提交
861 862 863 864 865 866 867 868 869 870
source "drivers/Kconfig"

source "fs/Kconfig"

source "arch/sh/Kconfig.debug"

source "security/Kconfig"

source "crypto/Kconfig"

871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886
menuconfig VIRTUALIZATION
	bool "Virtualization"
	default n
	---help---
	  Say Y here to get to see options for using your Linux host to run other
	  operating systems inside virtual machines (guests).
	  This option alone does not add any kernel code.

	  If you say N, all options in this submenu will be skipped and disabled.

if VIRTUALIZATION

source drivers/virtio/Kconfig

endif # VIRTUALIZATION

L
Linus Torvalds 已提交
887
source "lib/Kconfig"