Kconfig 20.1 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
12
	select HAVE_IDE if HAS_IOPORT
Y
Yinghai Lu 已提交
13
	select HAVE_MEMBLOCK
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
P
Paul Mundt 已提交
26
	select HAVE_REGS_AND_STACK_ACCESS_API
27
	select RTC_LIB
28
	select GENERIC_ATOMIC64
L
Linus Torvalds 已提交
29 30 31 32 33 34
	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
35
config SUPERH32
36
	def_bool ARCH = "sh"
C
Chris Smith 已提交
37 38
	select HAVE_KPROBES
	select HAVE_KRETPROBES
39
	select HAVE_IOREMAP_PROT if MMU && !X2TLB
40
	select HAVE_FUNCTION_TRACER
M
Matt Fleming 已提交
41 42
	select HAVE_FTRACE_MCOUNT_RECORD
	select HAVE_DYNAMIC_FTRACE
43
	select HAVE_FUNCTION_TRACE_MCOUNT_TEST
44
	select HAVE_FTRACE_NMI_ENTER if DYNAMIC_FTRACE
M
Matt Fleming 已提交
45
	select HAVE_FUNCTION_GRAPH_TRACER
P
Paul Mundt 已提交
46
	select HAVE_ARCH_KGDB
47
	select HAVE_HW_BREAKPOINT
48
	select HAVE_MIXED_BREAKPOINTS_REGS
49
	select PERF_EVENTS
50
	select ARCH_HIBERNATION_POSSIBLE if MMU
51 52

config SUPERH64
53
	def_bool ARCH = "sh64"
P
Paul Mundt 已提交
54

55 56 57 58 59
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
60
config RWSEM_GENERIC_SPINLOCK
61
	def_bool y
L
Linus Torvalds 已提交
62 63 64 65

config RWSEM_XCHGADD_ALGORITHM
	bool

P
Paul Mundt 已提交
66 67
config GENERIC_BUG
	def_bool y
68
	depends on BUG && SUPERH32
P
Paul Mundt 已提交
69

70 71 72 73
config GENERIC_CSUM
	def_bool y
	depends on SUPERH64

74
config GENERIC_FIND_NEXT_BIT
75
	def_bool y
76 77

config GENERIC_HWEIGHT
78
	def_bool y
79

L
Linus Torvalds 已提交
80
config GENERIC_HARDIRQS
81
	def_bool y
L
Linus Torvalds 已提交
82

83 84 85
config GENERIC_HARDIRQS_NO__DO_IRQ
	def_bool y

P
Paul Mundt 已提交
86 87 88
config IRQ_PER_CPU
	def_bool y

89 90 91 92
config SPARSE_IRQ
	def_bool y
	depends on SUPERH32

M
Magnus Damm 已提交
93 94 95
config GENERIC_GPIO
	def_bool n

L
Linus Torvalds 已提交
96
config GENERIC_CALIBRATE_DELAY
97
	bool
L
Linus Torvalds 已提交
98

99 100 101
config GENERIC_IOMAP
	bool

102
config GENERIC_CLOCKEVENTS
103
	def_bool y
104

105 106 107
config GENERIC_CLOCKEVENTS_BROADCAST
	bool

108 109 110 111
config GENERIC_CMOS_UPDATE
	def_bool y
	depends on SH_SH03 || SH_DREAMCAST

P
Paul Mundt 已提交
112 113 114 115
config GENERIC_LOCKBREAK
	def_bool y
	depends on SMP && PREEMPT

116 117
config SYS_SUPPORTS_PM
	bool
M
Magnus Damm 已提交
118 119 120 121 122 123 124
	depends on !SMP

config ARCH_SUSPEND_POSSIBLE
	def_bool n

config ARCH_HIBERNATION_POSSIBLE
	def_bool n
125

126 127
config SYS_SUPPORTS_APM_EMULATION
	bool
M
Magnus Damm 已提交
128
	select ARCH_SUSPEND_POSSIBLE
129

130 131 132
config SYS_SUPPORTS_HUGETLBFS
	bool

133 134 135 136 137 138 139 140
config SYS_SUPPORTS_SMP
	bool

config SYS_SUPPORTS_NUMA
	bool

config SYS_SUPPORTS_PCI
	bool
141

142 143 144
config SYS_SUPPORTS_CMT
	bool

145 146 147
config SYS_SUPPORTS_MTU2
	bool

148 149 150
config SYS_SUPPORTS_TMU
	bool

151
config STACKTRACE_SUPPORT
152
	def_bool y
153 154

config LOCKDEP_SUPPORT
155
	def_bool y
156

P
Paul Mundt 已提交
157 158 159
config HAVE_LATENCYTOP_SUPPORT
	def_bool y

160
config ARCH_HAS_ILOG2_U32
161
	def_bool n
162 163

config ARCH_HAS_ILOG2_U64
164
	def_bool n
165

166 167 168
config ARCH_NO_VIRT_TO_BUS
	def_bool y

169 170 171
config ARCH_HAS_DEFAULT_IDLE
	def_bool y

172 173 174
config ARCH_HAS_CPU_IDLE_WAIT
	def_bool y

175 176 177
config NO_IOPORT
	bool

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

190 191 192
config NEED_SG_DMA_LENGTH
	def_bool y

L
Linus Torvalds 已提交
193 194
source "init/Kconfig"

195 196
source "kernel/Kconfig.freezer"

L
Linus Torvalds 已提交
197 198
menu "System type"

199 200 201 202 203 204 205 206 207 208 209 210 211 212
#
# 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
213
	select SYS_SUPPORTS_TMU
214 215 216 217 218 219

config CPU_SH4
	bool
	select CPU_HAS_INTEVT
	select CPU_HAS_SR_RB
	select CPU_HAS_FPU if !CPU_SH4AL_DSP
220
	select SYS_SUPPORTS_TMU
221
	select SYS_SUPPORTS_HUGETLBFS if MMU
222 223 224 225 226 227 228 229 230 231

config CPU_SH4A
	bool
	select CPU_SH4

config CPU_SH4AL_DSP
	bool
	select CPU_SH4A
	select CPU_HAS_DSP

232 233 234
config CPU_SH5
	bool
	select CPU_HAS_FPU
235
	select SYS_SUPPORTS_TMU
236
	select SYS_SUPPORTS_HUGETLBFS if MMU
237

238 239 240 241 242
config CPU_SHX2
	bool

config CPU_SHX3
	bool
243
	select DMA_COHERENT
244 245
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_NUMA
246

247 248
config ARCH_SHMOBILE
	bool
M
Magnus Damm 已提交
249
	select ARCH_SUSPEND_POSSIBLE
250 251
	select PM
	select PM_RUNTIME
252

253 254
if SUPERH32

255 256 257 258 259 260 261 262 263 264 265 266
choice
	prompt "Processor sub-type selection"

#
# Processor subtypes
#

# SH-2 Processor Support

config CPU_SUBTYPE_SH7619
	bool "Support SH7619 processor"
	select CPU_SH2
267
	select SYS_SUPPORTS_CMT
268 269 270

# SH-2A Processor Support

271 272 273 274
config CPU_SUBTYPE_SH7201
	bool "Support SH7201 processor"
	select CPU_SH2A
	select CPU_HAS_FPU
M
Magnus Damm 已提交
275
	select SYS_SUPPORTS_MTU2
276
 
P
Paul Mundt 已提交
277 278 279
config CPU_SUBTYPE_SH7203
	bool "Support SH7203 processor"
	select CPU_SH2A
P
Paul Mundt 已提交
280
	select CPU_HAS_FPU
281
	select SYS_SUPPORTS_CMT
M
Magnus Damm 已提交
282
	select SYS_SUPPORTS_MTU2
P
Paul Mundt 已提交
283

284 285 286
config CPU_SUBTYPE_SH7206
	bool "Support SH7206 processor"
	select CPU_SH2A
287
	select SYS_SUPPORTS_CMT
M
Magnus Damm 已提交
288
	select SYS_SUPPORTS_MTU2
289

P
Paul Mundt 已提交
290 291 292
config CPU_SUBTYPE_SH7263
	bool "Support SH7263 processor"
	select CPU_SH2A
P
Paul Mundt 已提交
293
	select CPU_HAS_FPU
294
	select SYS_SUPPORTS_CMT
M
Magnus Damm 已提交
295
	select SYS_SUPPORTS_MTU2
P
Paul Mundt 已提交
296

297 298 299
config CPU_SUBTYPE_MXG
	bool "Support MX-G processor"
	select CPU_SH2A
M
Magnus Damm 已提交
300
	select SYS_SUPPORTS_MTU2
301 302 303
	help
	  Select MX-G if running on an R8A03022BG part.

304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352
# 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
353
	select SYS_SUPPORTS_CMT
354 355 356
	help
	  Select SH7720 if you have a SH3-DSP SH7720 CPU.

357 358 359 360
config CPU_SUBTYPE_SH7721
	bool "Support SH7721 processor"
	select CPU_SH3
	select CPU_HAS_DSP
361
	select SYS_SUPPORTS_CMT
362 363 364
	help
	  Select SH7721 if you have a SH3-DSP SH7721 CPU.

365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408
# 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

409 410 411 412
config CPU_SUBTYPE_SH7723
	bool "Support SH7723 processor"
	select CPU_SH4A
	select CPU_SHX2
413
	select ARCH_SHMOBILE
414
	select ARCH_SPARSEMEM_ENABLE
415
	select SYS_SUPPORTS_CMT
416 417 418
	help
	  Select SH7723 if you have an SH-MobileR2 CPU.

419 420 421 422
config CPU_SUBTYPE_SH7724
	bool "Support SH7724 processor"
	select CPU_SH4A
	select CPU_SHX2
423
	select ARCH_SHMOBILE
424 425 426 427 428
	select ARCH_SPARSEMEM_ENABLE
	select SYS_SUPPORTS_CMT
	help
	  Select SH7724 if you have an SH-MobileR2R CPU.

429 430 431 432 433 434 435
config CPU_SUBTYPE_SH7757
	bool "Support SH7757 processor"
	select CPU_SH4A
	select CPU_SHX2
	help
	  Select SH7757 if you have a SH4A SH7757 CPU.

436 437 438 439 440 441
config CPU_SUBTYPE_SH7763
	bool "Support SH7763 processor"
	select CPU_SH4A
	help
	  Select SH7763 if you have a SH4A SH7763(R5S77631) CPU.

442 443 444 445 446 447 448 449 450 451 452 453
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
454 455 456 457 458 459
	select ARCH_SPARSEMEM_ENABLE
	select SYS_SUPPORTS_NUMA

config CPU_SUBTYPE_SH7786
	bool "Support SH7786 processor"
	select CPU_SH4A
460
	select CPU_SHX3
461
	select CPU_HAS_PTEAEX
P
Paul Mundt 已提交
462
	select GENERIC_CLOCKEVENTS_BROADCAST if SMP
463 464 465 466 467

config CPU_SUBTYPE_SHX3
	bool "Support SH-X3 processor"
	select CPU_SH4A
	select CPU_SHX3
468
	select GENERIC_CLOCKEVENTS_BROADCAST if SMP
469 470 471 472 473 474

# SH4AL-DSP Processor Support

config CPU_SUBTYPE_SH7343
	bool "Support SH7343 processor"
	select CPU_SH4AL_DSP
475
	select ARCH_SHMOBILE
476
	select SYS_SUPPORTS_CMT
477 478 479 480 481

config CPU_SUBTYPE_SH7722
	bool "Support SH7722 processor"
	select CPU_SH4AL_DSP
	select CPU_SHX2
482
	select ARCH_SHMOBILE
483 484
	select ARCH_SPARSEMEM_ENABLE
	select SYS_SUPPORTS_NUMA
485
	select SYS_SUPPORTS_CMT
486 487 488 489 490

config CPU_SUBTYPE_SH7366
	bool "Support SH7366 processor"
	select CPU_SH4AL_DSP
	select CPU_SHX2
491
	select ARCH_SHMOBILE
492 493
	select ARCH_SPARSEMEM_ENABLE
	select SYS_SUPPORTS_NUMA
494
	select SYS_SUPPORTS_CMT
495

496 497 498 499 500 501 502 503 504
endchoice

endif

if SUPERH64

choice
	prompt "Processor sub-type selection"

505 506 507 508 509 510 511 512
# 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"
513
	select CPU_SH5
514

515 516
endchoice

517 518
endif

P
Paul Mundt 已提交
519
source "arch/sh/mm/Kconfig"
520
 
521
source "arch/sh/Kconfig.cpu"
P
Paul Mundt 已提交
522

523
source "arch/sh/boards/Kconfig"
524 525 526

menu "Timer and clock configuration"

527 528
config SH_TIMER_TMU
	bool "TMU timer driver"
M
Magnus Damm 已提交
529
	depends on SYS_SUPPORTS_TMU
530 531 532 533
	default y
	help
	  This enables the build of the TMU timer driver.

534
config SH_TIMER_CMT
M
Magnus Damm 已提交
535 536 537 538 539
	bool "CMT timer driver"
	depends on SYS_SUPPORTS_CMT
	default y
	help
	  This enables build of the CMT timer driver.
540

541 542
config SH_TIMER_MTU2
	bool "MTU2 timer driver"
M
Magnus Damm 已提交
543
	depends on SYS_SUPPORTS_MTU2
544 545 546 547
	default y
	help
	  This enables build of the MTU2 timer driver.

548 549
config SH_PCLK_FREQ
	int "Peripheral clock frequency (in Hz)"
550
	depends on SH_CLK_CPG_LEGACY
551
	default "31250000" if CPU_SUBTYPE_SH7619
552 553 554 555 556 557
	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
558
			      CPU_SUBTYPE_MXG
P
Paul Mundt 已提交
559
	default "60000000" if CPU_SUBTYPE_SH7751 || CPU_SUBTYPE_SH7751R
560
	default "66000000" if CPU_SUBTYPE_SH4_202
P
Paul Mundt 已提交
561
	default "50000000"
L
Linus Torvalds 已提交
562
	help
563 564 565
	  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
566

567 568 569
config SH_CLK_CPG
	def_bool y

570
config SH_CLK_CPG_LEGACY
571
	depends on SH_CLK_CPG
P
Paul Mundt 已提交
572
	def_bool y if !CPU_SUBTYPE_SH7785 && !ARCH_SHMOBILE && \
573
		      !CPU_SUBTYPE_SH7786 && !CPU_SUBTYPE_SH7757
574

575 576
config SH_CLK_MD
	int "CPU Mode Pin Setting"
P
Paul Mundt 已提交
577
	depends on CPU_SH2
578 579 580
	default 6 if CPU_SUBTYPE_SH7206
	default 5 if CPU_SUBTYPE_SH7619
	default 0
581
	help
582
	  MD2 - MD0 pin setting.
583

584 585
source "kernel/time/Kconfig"

586 587
endmenu

588 589 590
menu "CPU Frequency scaling"

source "drivers/cpufreq/Kconfig"
L
Linus Torvalds 已提交
591

592 593
config SH_CPU_FREQ
	tristate "SuperH CPU Frequency driver"
594
	depends on CPU_FREQ
595
	select CPU_FREQ_TABLE
L
Linus Torvalds 已提交
596
	help
P
Paul Mundt 已提交
597 598 599 600 601 602
	  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
603

604
	  For details, take a look at <file:Documentation/cpu-freq>.
L
Linus Torvalds 已提交
605 606 607

	  If unsure, say N.

608 609
endmenu

P
Paul Mundt 已提交
610 611
source "arch/sh/drivers/Kconfig"

612
endmenu
L
Linus Torvalds 已提交
613

614 615
menu "Kernel features"

P
Paul Mundt 已提交
616 617
source kernel/Kconfig.hz

618 619
config KEXEC
	bool "kexec system call (EXPERIMENTAL)"
620
	depends on SUPERH32 && EXPERIMENTAL && MMU
L
Linus Torvalds 已提交
621
	help
622 623
	  kexec is a system call that implements the ability to shutdown your
	  current kernel, and to start another kernel.  It is like a reboot
624
	  but it is independent of the system firmware.  And like a reboot
625 626
	  you can start any kernel with it, not just Linux.

627
	  The name comes from the similarity to the exec system call.
628 629 630 631 632 633 634

	  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
635 636
config CRASH_DUMP
	bool "kernel crash dumps (EXPERIMENTAL)"
637
	depends on SUPERH32 && EXPERIMENTAL && BROKEN_ON_SMP
P
Paul Mundt 已提交
638 639 640 641 642 643 644 645 646 647 648
	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
649 650 651 652 653 654 655
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
656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671
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
672 673
config SMP
	bool "Symmetric multi-processing support"
674
	depends on SYS_SUPPORTS_SMP
675
	select USE_GENERIC_SMP_HELPERS
L
Linus Torvalds 已提交
676 677 678 679 680 681 682 683 684 685 686 687 688 689
	---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
690 691
	  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
692 693 694 695 696 697 698

	  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
699
	default "4" if CPU_SUBTYPE_SHX3
L
Linus Torvalds 已提交
700 701 702 703 704 705 706 707 708
	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
709 710 711 712 713 714 715
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
716 717
source "kernel/Kconfig.preempt"

P
Paul Mundt 已提交
718 719
config GUSA
	def_bool y
720
	depends on !SMP && SUPERH32
P
Paul Mundt 已提交
721 722 723 724 725 726 727 728 729 730 731
	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.

732 733 734 735 736
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
737
	  atomic operations using a software implementation of load-locked/
738 739
	  store-conditional (LLSC). On machines which do not have hardware
	  LLSC, this should be more efficient than the other alternative of
740
	  disabling interrupts around the atomic sequence.
741

P
Paul Mundt 已提交
742 743
source "drivers/sh/Kconfig"

744
endmenu
L
Linus Torvalds 已提交
745

746
menu "Boot options"
L
Linus Torvalds 已提交
747

748
config ZERO_PAGE_OFFSET
749 750 751 752
	hex
	default "0x00010000" if PAGE_SIZE_64KB || SH_RTS7751R2D || \
				SH_7751_SOLUTION_ENGINE
	default "0x00004000" if PAGE_SIZE_16KB || SH_SH03
753
	default "0x00002000" if PAGE_SIZE_8KB
754
	default "0x00001000"
L
Linus Torvalds 已提交
755
	help
756
	  This sets the default offset of zero page.
L
Linus Torvalds 已提交
757

758
config BOOT_LINK_OFFSET
759 760
	hex
	default "0x00210000" if SH_SHMIN
761
	default "0x00400000" if SH_CAYMAN
762 763 764 765
	default "0x00810000" if SH_7780_SOLUTION_ENGINE
	default "0x009e0000" if SH_TITAN
	default "0x01800000" if SH_SDK7780
	default "0x02000000" if SH_EDOSK7760
766 767 768 769 770
	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
771

772 773 774 775 776 777 778 779
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"

780 781 782 783 784 785 786 787 788 789 790
config ROMIMAGE_MMCIF
	bool "Include MMCIF loader in romImage (EXPERIMENTAL)"
	depends on CPU_SUBTYPE_SH7724 && EXPERIMENTAL
	help
	  Say Y here to include experimental MMCIF loading code in
	  romImage. With this enabled it is possible to write the romImage
	  kernel image to an MMC card and boot the kernel straight from
	  the reset vector. At reset the processor Mask ROM will load the
	  first part of the romImage which in turn loads the rest the kernel
	  image to RAM using the MMCIF hardware block.

791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811
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
812

813
config CMDLINE
814 815
	string "Kernel command line arguments string"
	depends on CMDLINE_OVERWRITE || CMDLINE_EXTEND
816
	default "console=ttySC1,115200"
L
Linus Torvalds 已提交
817 818 819

endmenu

820
menu "Bus options"
L
Linus Torvalds 已提交
821

822 823 824
config SUPERHYWAY
	tristate "SuperHyway Bus support"
	depends on CPU_SUBTYPE_SH4_202
L
Linus Torvalds 已提交
825

826
config MAPLE
827 828 829 830 831 832 833 834 835
	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.
836

837 838 839
config PCI
	bool "PCI support"
	depends on SYS_SUPPORTS_PCI
P
Paul Mundt 已提交
840
	select PCI_DOMAINS
841 842 843 844
	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
845

P
Paul Mundt 已提交
846 847 848
config PCI_DOMAINS
	bool

849 850
source "drivers/pci/pcie/Kconfig"

L
Linus Torvalds 已提交
851 852 853 854 855 856 857 858 859 860 861 862 863 864
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
865
menu "Power management options (EXPERIMENTAL)"
M
Magnus Damm 已提交
866
depends on EXPERIMENTAL
J
Johannes Berg 已提交
867

M
Magnus Damm 已提交
868 869 870
source "kernel/power/Kconfig"

source "drivers/cpuidle/Kconfig"
A
Andriy Skulysh 已提交
871 872 873

endmenu

874 875
source "net/Kconfig"

L
Linus Torvalds 已提交
876 877 878 879 880 881 882 883 884 885
source "drivers/Kconfig"

source "fs/Kconfig"

source "arch/sh/Kconfig.debug"

source "security/Kconfig"

source "crypto/Kconfig"

886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901
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
902
source "lib/Kconfig"