Kconfig 61.8 KB
Newer Older
L
Linus Torvalds 已提交
1 2 3
config MIPS
	bool
	default y
4
	select ARCH_MIGHT_HAVE_PC_PARPORT
5
	select HAVE_CONTEXT_TRACKING
6
	select HAVE_GENERIC_DMA_COHERENT
S
Sam Ravnborg 已提交
7
	select HAVE_IDE
M
Mathieu Desnoyers 已提交
8
	select HAVE_OPROFILE
9 10
	select HAVE_PERF_EVENTS
	select PERF_USE_VMALLOC
11
	select HAVE_ARCH_KGDB
R
Ralf Baechle 已提交
12
	select HAVE_ARCH_TRACEHOOK
13
	select ARCH_HAVE_CUSTOM_GPIO_H
14
	select HAVE_FUNCTION_TRACER
15
	select HAVE_FUNCTION_TRACE_MCOUNT_TEST
16 17
	select HAVE_DYNAMIC_FTRACE
	select HAVE_FTRACE_MCOUNT_RECORD
18
	select HAVE_C_RECORDMCOUNT
19
	select HAVE_FUNCTION_GRAPH_TRACER
D
David Daney 已提交
20 21
	select HAVE_KPROBES
	select HAVE_KRETPROBES
22
	select HAVE_DEBUG_KMEMLEAK
23
	select HAVE_SYSCALL_TRACEPOINTS
D
David Daney 已提交
24
	select ARCH_BINFMT_ELF_RANDOMIZE_PIE
25
	select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT
26
	select RTC_LIB if !MACH_LOONGSON
27
	select GENERIC_ATOMIC64 if !64BIT
28
	select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
29 30
	select HAVE_DMA_ATTRS
	select HAVE_DMA_API_DEBUG
31
	select GENERIC_IRQ_PROBE
32
	select GENERIC_IRQ_SHOW
33
	select GENERIC_PCI_IOMAP
34
	select HAVE_ARCH_JUMP_LABEL
35
	select ARCH_WANT_IPC_PARSE_VERSION
36
	select IRQ_FORCED_THREADING
T
Tejun Heo 已提交
37 38 39
	select HAVE_MEMBLOCK
	select HAVE_MEMBLOCK_NODE_MAP
	select ARCH_DISCARD_MEMBLOCK
40
	select GENERIC_SMP_IDLE_THREAD
41
	select BUILDTIME_EXTABLE_SORT
42 43
	select GENERIC_CLOCKEVENTS
	select GENERIC_CMOS_UPDATE
44
	select HAVE_MOD_ARCH_SPECIFIC
45
	select VIRT_TO_BUS
46 47
	select MODULES_USE_ELF_REL if MODULES
	select MODULES_USE_ELF_RELA if MODULES && 64BIT
48
	select CLONE_BACKWARDS
49
	select HAVE_DEBUG_STACKOVERFLOW
L
Linus Torvalds 已提交
50 51 52

menu "Machine selection"

53 54 55
choice
	prompt "System type"
	default SGI_IP22
L
Linus Torvalds 已提交
56

57
config MIPS_ALCHEMY
58
	bool "Alchemy processor based machines"
59
	select 64BIT_PHYS_ADDR
60
	select CEVT_R4K
61
	select CSRC_R4K
62 63 64 65
	select IRQ_CPU
	select SYS_HAS_CPU_MIPS32_R1
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_APM_EMULATION
66
	select ARCH_REQUIRE_GPIOLIB
67
	select SYS_SUPPORTS_ZBOOT
68 69
	select USB_ARCH_HAS_OHCI
	select USB_ARCH_HAS_EHCI
L
Linus Torvalds 已提交
70

71 72 73 74 75 76 77 78 79 80 81 82 83
config AR7
	bool "Texas Instruments AR7"
	select BOOT_ELF32
	select DMA_NONCOHERENT
	select CEVT_R4K
	select CSRC_R4K
	select IRQ_CPU
	select NO_EXCEPT_FILL
	select SWAP_IO_SPACE
	select SYS_HAS_CPU_MIPS32_R1
	select SYS_HAS_EARLY_PRINTK
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_LITTLE_ENDIAN
84
	select SYS_SUPPORTS_ZBOOT_UART16550
F
Florian Fainelli 已提交
85
	select ARCH_REQUIRE_GPIOLIB
86
	select VLYNQ
87
	select HAVE_CLK
88 89 90 91
	help
	  Support for the Texas Instruments AR7 System-on-a-Chip
	  family: TNETD7100, 7200 and 7300.

92 93
config ATH79
	bool "Atheros AR71XX/AR724X/AR913X based boards"
G
Gabor Juhos 已提交
94
	select ARCH_REQUIRE_GPIOLIB
95 96 97 98
	select BOOT_RAW
	select CEVT_R4K
	select CSRC_R4K
	select DMA_NONCOHERENT
G
Gabor Juhos 已提交
99
	select HAVE_CLK
100
	select CLKDEV_LOOKUP
101
	select IRQ_CPU
102
	select MIPS_MACHINE
103 104 105 106 107 108 109
	select SYS_HAS_CPU_MIPS32_R2
	select SYS_HAS_EARLY_PRINTK
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
	help
	  Support for the Atheros AR71XX/AR724X/AR913X SoCs.

110
config BCM47XX
111
	bool "Broadcom BCM47XX based boards"
H
Hauke Mehrtens 已提交
112
	select ARCH_WANT_OPTIONAL_GPIOLIB
H
Hauke Mehrtens 已提交
113
	select BOOT_RAW
114
	select CEVT_R4K
115
	select CSRC_R4K
116 117 118
	select DMA_NONCOHERENT
	select HW_HAS_PCI
	select IRQ_CPU
119
	select SYS_HAS_CPU_MIPS32_R1
120
	select NO_EXCEPT_FILL
121 122
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_LITTLE_ENDIAN
123 124
	select SYS_HAS_EARLY_PRINTK
	select EARLY_PRINTK_8250 if EARLY_PRINTK
125 126 127
	help
	 Support for BCM47XX based boards

128 129
config BCM63XX
	bool "Broadcom BCM63XX based boards"
130
	select BOOT_RAW
131 132 133 134 135 136 137 138 139
	select CEVT_R4K
	select CSRC_R4K
	select DMA_NONCOHERENT
	select IRQ_CPU
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_HAS_EARLY_PRINTK
	select SWAP_IO_SPACE
	select ARCH_REQUIRE_GPIOLIB
140
	select HAVE_CLK
141 142 143
	help
	 Support for BCM63XX based boards

L
Linus Torvalds 已提交
144
config MIPS_COBALT
145
	bool "Cobalt Server"
146
	select CEVT_R4K
147
	select CSRC_R4K
148
	select CEVT_GT641XX
L
Linus Torvalds 已提交
149
	select DMA_NONCOHERENT
150
	select EARLY_PRINTK_8250 if EARLY_PRINTK
L
Linus Torvalds 已提交
151
	select HW_HAS_PCI
152
	select I8253
L
Linus Torvalds 已提交
153 154
	select I8259
	select IRQ_CPU
Y
Yoichi Yuasa 已提交
155
	select IRQ_GT641XX
156
	select PCI_GT64XXX_PCI0
157
	select PCI
158
	select SYS_HAS_CPU_NEVADA
Y
Yoichi Yuasa 已提交
159
	select SYS_HAS_EARLY_PRINTK
160
	select SYS_SUPPORTS_32BIT_KERNEL
161
	select SYS_SUPPORTS_64BIT_KERNEL
162
	select SYS_SUPPORTS_LITTLE_ENDIAN
L
Linus Torvalds 已提交
163 164

config MACH_DECSTATION
165
	bool "DECstations"
L
Linus Torvalds 已提交
166
	select BOOT_ELF32
167
	select CEVT_DS1287
168
	select CEVT_R4K
169
	select CSRC_IOASIC
170
	select CSRC_R4K
171 172 173
	select CPU_DADDI_WORKAROUNDS if 64BIT
	select CPU_R4000_WORKAROUNDS if 64BIT
	select CPU_R4400_WORKAROUNDS if 64BIT
L
Linus Torvalds 已提交
174
	select DMA_NONCOHERENT
175
	select NO_IOPORT
L
Linus Torvalds 已提交
176
	select IRQ_CPU
177 178
	select SYS_HAS_CPU_R3000
	select SYS_HAS_CPU_R4X00
179
	select SYS_SUPPORTS_32BIT_KERNEL
180
	select SYS_SUPPORTS_64BIT_KERNEL
181
	select SYS_SUPPORTS_LITTLE_ENDIAN
182 183 184
	select SYS_SUPPORTS_128HZ
	select SYS_SUPPORTS_256HZ
	select SYS_SUPPORTS_1024HZ
185
	help
L
Linus Torvalds 已提交
186 187 188 189 190 191 192
	  This enables support for DEC's MIPS based workstations.  For details
	  see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
	  DECstation porting pages on <http://decstation.unix-ag.org/>.

	  If you have one of the following DECstation Models you definitely
	  want to choose R4xx0 for the CPU Type:

193 194 195 196
		DECstation 5000/50
		DECstation 5000/150
		DECstation 5000/260
		DECsystem 5900/260
L
Linus Torvalds 已提交
197 198 199

	  otherwise choose R3000.

200
config MACH_JAZZ
201
	bool "Jazz family of machines"
202 203
	select FW_ARC
	select FW_ARC32
204
	select ARCH_MAY_HAVE_PC_FDC
205
	select CEVT_R4K
206
	select CSRC_R4K
T
Thomas Bogendoerfer 已提交
207
	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
208
	select GENERIC_ISA_DMA
209
	select HAVE_PCSPKR_PLATFORM
T
Thomas Bogendoerfer 已提交
210
	select IRQ_CPU
211
	select I8253
212 213
	select I8259
	select ISA
214
	select SYS_HAS_CPU_R4X00
215
	select SYS_SUPPORTS_32BIT_KERNEL
216
	select SYS_SUPPORTS_64BIT_KERNEL
217
	select SYS_SUPPORTS_100HZ
L
Linus Torvalds 已提交
218
	help
219 220
	 This a family of machines based on the MIPS R4030 chipset which was
	 used by several vendors to build RISC/os and Windows NT workstations.
221
	 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
222 223
	 Olivetti M700-10 workstations.

224 225 226 227 228
config MACH_JZ4740
	bool "Ingenic JZ4740 based machines"
	select SYS_HAS_CPU_MIPS32_R1
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_LITTLE_ENDIAN
229
	select SYS_SUPPORTS_ZBOOT_UART16550
230 231 232 233 234
	select DMA_NONCOHERENT
	select IRQ_CPU
	select ARCH_REQUIRE_GPIOLIB
	select SYS_HAS_EARLY_PRINTK
	select HAVE_PWM
M
Maurus Cuelenaere 已提交
235
	select HAVE_CLK
236
	select GENERIC_IRQ_CHIP
237

238 239 240 241 242 243 244 245 246 247 248 249 250 251 252
config LANTIQ
	bool "Lantiq based platforms"
	select DMA_NONCOHERENT
	select IRQ_CPU
	select CEVT_R4K
	select CSRC_R4K
	select SYS_HAS_CPU_MIPS32_R1
	select SYS_HAS_CPU_MIPS32_R2
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_MULTITHREADING
	select SYS_HAS_EARLY_PRINTK
	select ARCH_REQUIRE_GPIOLIB
	select SWAP_IO_SPACE
	select BOOT_RAW
253 254
	select HAVE_MACH_CLKDEV
	select CLKDEV_LOOKUP
255
	select USE_OF
256 257
	select PINCTRL
	select PINCTRL_LANTIQ
258

259 260
config LASAT
	bool "LASAT Networks platforms"
261
	select CEVT_R4K
262
	select CSRC_R4K
263 264 265
	select DMA_NONCOHERENT
	select SYS_HAS_EARLY_PRINTK
	select HW_HAS_PCI
266
	select IRQ_CPU
267 268 269 270 271 272 273 274
	select PCI_GT64XXX_PCI0
	select MIPS_NILE4
	select R5000_CPU_SCACHE
	select SYS_HAS_CPU_R5000
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
	select SYS_SUPPORTS_LITTLE_ENDIAN

275 276
config MACH_LOONGSON
	bool "Loongson family of machines"
277
	select SYS_SUPPORTS_ZBOOT
278
	help
279 280 281 282 283 284
	  This enables the support of Loongson family of machines.

	  Loongson is a family of general-purpose MIPS-compatible CPUs.
	  developed at Institute of Computing Technology (ICT),
	  Chinese Academy of Sciences (CAS) in the People's Republic
	  of China. The chief architect is Professor Weiwu Hu.
285

286 287 288 289 290 291 292 293 294 295
config MACH_LOONGSON1
	bool "Loongson 1 family of machines"
	select SYS_SUPPORTS_ZBOOT
	help
	  This enables support for the Loongson 1 based machines.

	  Loongson 1 is a family of 32-bit MIPS-compatible SoCs developed by
	  the ICT (Institute of Computing Technology) and the Chinese Academy
	  of Sciences.

L
Linus Torvalds 已提交
296
config MIPS_MALTA
297
	bool "MIPS Malta board"
298
	select ARCH_MAY_HAVE_PC_FDC
L
Linus Torvalds 已提交
299
	select BOOT_ELF32
300
	select BOOT_RAW
301
	select CEVT_R4K
302
	select CSRC_R4K
S
Steven J. Hill 已提交
303
	select CSRC_GIC
304
	select DMA_MAYBE_COHERENT
L
Linus Torvalds 已提交
305
	select GENERIC_ISA_DMA
306
	select HAVE_PCSPKR_PLATFORM
307
	select IRQ_CPU
308
	select IRQ_GIC
L
Linus Torvalds 已提交
309
	select HW_HAS_PCI
310
	select I8253
L
Linus Torvalds 已提交
311
	select I8259
312
	select MIPS_BONITO64
313
	select MIPS_CPU_SCACHE
314
	select PCI_GT64XXX_PCI0
315
	select MIPS_MSC
L
Linus Torvalds 已提交
316
	select SWAP_IO_SPACE
317 318 319
	select SYS_HAS_CPU_MIPS32_R1
	select SYS_HAS_CPU_MIPS32_R2
	select SYS_HAS_CPU_MIPS64_R1
320
	select SYS_HAS_CPU_MIPS64_R2
321 322
	select SYS_HAS_CPU_NEVADA
	select SYS_HAS_CPU_RM7000
323 324
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
325 326
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN
T
Tim Anderson 已提交
327
	select SYS_SUPPORTS_MIPS_CMP
328
	select SYS_SUPPORTS_MULTITHREADING
329
	select SYS_SUPPORTS_SMARTMIPS
330
	select SYS_SUPPORTS_ZBOOT
L
Linus Torvalds 已提交
331
	help
332
	  This enables support for the MIPS Technologies Malta evaluation
L
Linus Torvalds 已提交
333 334
	  board.

335 336 337 338 339 340
config MIPS_SEAD3
	bool "MIPS SEAD3 board"
	select BOOT_ELF32
	select BOOT_RAW
	select CEVT_R4K
	select CSRC_R4K
341
	select CSRC_GIC
342 343 344 345 346
	select CPU_MIPSR2_IRQ_VI
	select CPU_MIPSR2_IRQ_EI
	select DMA_NONCOHERENT
	select IRQ_CPU
	select IRQ_GIC
347
	select LIBFDT
348 349 350 351 352 353 354 355 356 357
	select MIPS_MSC
	select SYS_HAS_CPU_MIPS32_R1
	select SYS_HAS_CPU_MIPS32_R2
	select SYS_HAS_CPU_MIPS64_R1
	select SYS_HAS_EARLY_PRINTK
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select SYS_SUPPORTS_SMARTMIPS
358
	select SYS_SUPPORTS_MICROMIPS
359 360 361
	select USB_ARCH_HAS_EHCI
	select USB_EHCI_BIG_ENDIAN_DESC
	select USB_EHCI_BIG_ENDIAN_MMIO
362
	select USE_OF
363 364 365 366
	help
	  This enables support for the MIPS Technologies SEAD3 evaluation
	  board.

367 368 369 370 371 372
config NEC_MARKEINS
	bool "NEC EMMA2RH Mark-eins board"
	select SOC_EMMA2RH
	select HW_HAS_PCI
	help
	  This enables support for the NEC Electronics Mark-eins boards.
373

374
config MACH_VR41XX
375
	bool "NEC VR4100 series based machines"
376
	select CEVT_R4K
377
	select CSRC_R4K
378
	select SYS_HAS_CPU_VR41XX
379
	select ARCH_REQUIRE_GPIOLIB
380

381 382 383 384 385 386 387 388 389 390 391 392 393
config NXP_STB220
	bool "NXP STB220 board"
	select SOC_PNX833X
	help
	 Support for NXP Semiconductors STB220 Development Board.

config NXP_STB225
	bool "NXP 225 board"
	select SOC_PNX833X
	select SOC_PNX8335
	help
	 Support for NXP Semiconductors STB225 Development Board.

M
Marc St-Jean 已提交
394 395
config PMC_MSP
	bool "PMC-Sierra MSP chipsets"
396 397
	select CEVT_R4K
	select CSRC_R4K
M
Marc St-Jean 已提交
398 399 400 401 402 403 404 405 406 407 408
	select DMA_NONCOHERENT
	select SWAP_IO_SPACE
	select NO_EXCEPT_FILL
	select BOOT_RAW
	select SYS_HAS_CPU_MIPS32_R1
	select SYS_HAS_CPU_MIPS32_R2
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
	select IRQ_CPU
	select SERIAL_8250
	select SERIAL_8250_CONSOLE
409 410
	select USB_EHCI_BIG_ENDIAN_MMIO
	select USB_EHCI_BIG_ENDIAN_DESC
M
Marc St-Jean 已提交
411 412 413 414 415 416
	help
	  This adds support for the PMC-Sierra family of Multi-Service
	  Processor System-On-A-Chips.  These parts include a number
	  of integrated peripherals, interfaces and DSPs in addition to
	  a variety of MIPS cores.

J
John Crispin 已提交
417 418 419 420 421 422 423 424 425 426 427 428 429 430 431
config RALINK
	bool "Ralink based machines"
	select CEVT_R4K
	select CSRC_R4K
	select BOOT_RAW
	select DMA_NONCOHERENT
	select IRQ_CPU
	select USE_OF
	select SYS_HAS_CPU_MIPS32_R1
	select SYS_HAS_CPU_MIPS32_R2
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select SYS_HAS_EARLY_PRINTK
	select HAVE_MACH_CLKDEV
	select CLKDEV_LOOKUP
432 433
	select ARCH_HAS_RESET_CONTROLLER
	select RESET_CONTROLLER
J
John Crispin 已提交
434

L
Linus Torvalds 已提交
435
config SGI_IP22
436
	bool "SGI IP22 (Indy/Indigo2)"
437 438
	select FW_ARC
	select FW_ARC32
L
Linus Torvalds 已提交
439
	select BOOT_ELF32
440
	select CEVT_R4K
441
	select CSRC_R4K
T
Thomas Bogendoerfer 已提交
442
	select DEFAULT_SGI_PARTITION
L
Linus Torvalds 已提交
443
	select DMA_NONCOHERENT
444
	select HW_HAS_EISA
445
	select I8253
446
	select I8259
L
Linus Torvalds 已提交
447 448
	select IP22_CPU_SCACHE
	select IRQ_CPU
449
	select GENERIC_ISA_DMA_SUPPORT_BROKEN
T
Thomas Bogendoerfer 已提交
450 451
	select SGI_HAS_I8042
	select SGI_HAS_INDYDOG
452
	select SGI_HAS_HAL2
T
Thomas Bogendoerfer 已提交
453 454 455
	select SGI_HAS_SEEQ
	select SGI_HAS_WD93
	select SGI_HAS_ZILOG
L
Linus Torvalds 已提交
456
	select SWAP_IO_SPACE
457 458
	select SYS_HAS_CPU_R4X00
	select SYS_HAS_CPU_R5000
459 460 461 462 463 464 465 466
	#
	# Disable EARLY_PRINTK for now since it leads to overwritten prom
	# memory during early boot on some machines.
	#
	# See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
	# for a more details discussion
	#
	# select SYS_HAS_EARLY_PRINTK
467 468
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
469
	select SYS_SUPPORTS_BIG_ENDIAN
L
Linus Torvalds 已提交
470 471 472 473 474 475
	help
	  This are the SGI Indy, Challenge S and Indigo2, as well as certain
	  OEM variants like the Tandem CMN B006S. To compile a Linux kernel
	  that runs on these, say Y here.

config SGI_IP27
476
	bool "SGI IP27 (Origin200/2000)"
477 478
	select FW_ARC
	select FW_ARC64
479
	select BOOT_ELF64
T
Thomas Bogendoerfer 已提交
480
	select DEFAULT_SGI_PARTITION
481
	select DMA_COHERENT
482
	select SYS_HAS_EARLY_PRINTK
L
Linus Torvalds 已提交
483
	select HW_HAS_PCI
484
	select NR_CPUS_DEFAULT_64
485
	select SYS_HAS_CPU_R10000
486
	select SYS_SUPPORTS_64BIT_KERNEL
487
	select SYS_SUPPORTS_BIG_ENDIAN
488
	select SYS_SUPPORTS_NUMA
489
	select SYS_SUPPORTS_SMP
L
Linus Torvalds 已提交
490 491 492 493 494
	help
	  This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
	  workstations.  To compile a Linux kernel that runs on these, say Y
	  here.

T
Thomas Bogendoerfer 已提交
495
config SGI_IP28
496
	bool "SGI IP28 (Indigo2 R10k)"
497 498
	select FW_ARC
	select FW_ARC64
T
Thomas Bogendoerfer 已提交
499 500 501 502 503 504 505 506 507 508 509 510
	select BOOT_ELF64
	select CEVT_R4K
	select CSRC_R4K
	select DEFAULT_SGI_PARTITION
	select DMA_NONCOHERENT
	select GENERIC_ISA_DMA_SUPPORT_BROKEN
	select IRQ_CPU
	select HW_HAS_EISA
	select I8253
	select I8259
	select SGI_HAS_I8042
	select SGI_HAS_INDYDOG
511
	select SGI_HAS_HAL2
T
Thomas Bogendoerfer 已提交
512 513 514 515 516
	select SGI_HAS_SEEQ
	select SGI_HAS_WD93
	select SGI_HAS_ZILOG
	select SWAP_IO_SPACE
	select SYS_HAS_CPU_R10000
517 518 519 520 521 522 523 524
	#
	# Disable EARLY_PRINTK for now since it leads to overwritten prom
	# memory during early boot on some machines.
	#
	# See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
	# for a more details discussion
	#
	# select SYS_HAS_EARLY_PRINTK
T
Thomas Bogendoerfer 已提交
525 526 527 528 529 530
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
      help
        This is the SGI Indigo2 with R10000 processor.  To compile a Linux
        kernel that runs on these, say Y here.

L
Linus Torvalds 已提交
531
config SGI_IP32
532
	bool "SGI IP32 (O2)"
533 534
	select FW_ARC
	select FW_ARC32
L
Linus Torvalds 已提交
535
	select BOOT_ELF32
536
	select CEVT_R4K
537
	select CSRC_R4K
L
Linus Torvalds 已提交
538 539
	select DMA_NONCOHERENT
	select HW_HAS_PCI
540
	select IRQ_CPU
L
Linus Torvalds 已提交
541 542
	select R5000_CPU_SCACHE
	select RM7000_CPU_SCACHE
543 544 545
	select SYS_HAS_CPU_R5000
	select SYS_HAS_CPU_R10000 if BROKEN
	select SYS_HAS_CPU_RM7000
R
Ralf Baechle 已提交
546
	select SYS_HAS_CPU_NEVADA
547
	select SYS_SUPPORTS_64BIT_KERNEL
548 549
	select SYS_SUPPORTS_BIG_ENDIAN
	help
550
	  If you want this kernel to run on SGI O2 workstation, say Y here.
L
Linus Torvalds 已提交
551

552 553
config SIBYTE_CRHINE
	bool "Sibyte BCM91120C-CRhine"
A
Andrew Isaacson 已提交
554 555
	select BOOT_ELF32
	select DMA_COHERENT
556
	select SIBYTE_BCM1120
A
Andrew Isaacson 已提交
557
	select SWAP_IO_SPACE
558
	select SYS_HAS_CPU_SB1
A
Andrew Isaacson 已提交
559 560 561
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN

562 563
config SIBYTE_CARMEL
	bool "Sibyte BCM91120x-Carmel"
564
	select BOOT_ELF32
L
Linus Torvalds 已提交
565
	select DMA_COHERENT
566
	select SIBYTE_BCM1120
567
	select SWAP_IO_SPACE
568
	select SYS_HAS_CPU_SB1
569
	select SYS_SUPPORTS_BIG_ENDIAN
570
	select SYS_SUPPORTS_LITTLE_ENDIAN
L
Linus Torvalds 已提交
571

572 573
config SIBYTE_CRHONE
	bool "Sibyte BCM91125C-CRhone"
574 575
	select BOOT_ELF32
	select DMA_COHERENT
576
	select SIBYTE_BCM1125
577
	select SWAP_IO_SPACE
578
	select SYS_HAS_CPU_SB1
579
	select SYS_SUPPORTS_BIG_ENDIAN
580
	select SYS_SUPPORTS_HIGHMEM
581
	select SYS_SUPPORTS_LITTLE_ENDIAN
L
Linus Torvalds 已提交
582

583
config SIBYTE_RHONE
584
	bool "Sibyte BCM91125E-Rhone"
585 586 587 588
	select BOOT_ELF32
	select DMA_COHERENT
	select SIBYTE_BCM1125H
	select SWAP_IO_SPACE
589
	select SYS_HAS_CPU_SB1
590 591
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN
L
Linus Torvalds 已提交
592

593 594
config SIBYTE_SWARM
	bool "Sibyte BCM91250A-SWARM"
595
	select BOOT_ELF32
P
Pete Popov 已提交
596
	select DMA_COHERENT
597
	select HAVE_PATA_PLATFORM
598
	select SIBYTE_SB1250
599
	select SWAP_IO_SPACE
600
	select SYS_HAS_CPU_SB1
601
	select SYS_SUPPORTS_BIG_ENDIAN
602
	select SYS_SUPPORTS_HIGHMEM
P
Pete Popov 已提交
603
	select SYS_SUPPORTS_LITTLE_ENDIAN
604
	select ZONE_DMA32 if 64BIT
P
Pete Popov 已提交
605

606 607
config SIBYTE_LITTLESUR
	bool "Sibyte BCM91250C2-LittleSur"
608 609
	select BOOT_ELF32
	select DMA_COHERENT
610
	select HAVE_PATA_PLATFORM
611 612
	select SIBYTE_SB1250
	select SWAP_IO_SPACE
613
	select SYS_HAS_CPU_SB1
614 615 616
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_HIGHMEM
	select SYS_SUPPORTS_LITTLE_ENDIAN
L
Linus Torvalds 已提交
617

618 619
config SIBYTE_SENTOSA
	bool "Sibyte BCM91250E-Sentosa"
620 621 622 623
	select BOOT_ELF32
	select DMA_COHERENT
	select SIBYTE_SB1250
	select SWAP_IO_SPACE
624
	select SYS_HAS_CPU_SB1
625 626
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN
L
Linus Torvalds 已提交
627

628 629
config SIBYTE_BIGSUR
	bool "Sibyte BCM91480B-BigSur"
630 631
	select BOOT_ELF32
	select DMA_COHERENT
632 633
	select NR_CPUS_DEFAULT_4
	select SIBYTE_BCM1x80
634
	select SWAP_IO_SPACE
635
	select SYS_HAS_CPU_SB1
636
	select SYS_SUPPORTS_BIG_ENDIAN
R
Ralf Baechle 已提交
637
	select SYS_SUPPORTS_HIGHMEM
638
	select SYS_SUPPORTS_LITTLE_ENDIAN
639
	select ZONE_DMA32 if 64BIT
L
Linus Torvalds 已提交
640

641 642
config SNI_RM
	bool "SNI RM200/300/400"
643 644
	select FW_ARC if CPU_LITTLE_ENDIAN
	select FW_ARC32 if CPU_LITTLE_ENDIAN
P
Paul Bolle 已提交
645
	select FW_SNIPROM if CPU_BIG_ENDIAN
646
	select ARCH_MAY_HAVE_PC_FDC
L
Linus Torvalds 已提交
647
	select BOOT_ELF32
648
	select CEVT_R4K
649
	select CSRC_R4K
T
Thomas Bogendoerfer 已提交
650
	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
L
Linus Torvalds 已提交
651 652
	select DMA_NONCOHERENT
	select GENERIC_ISA_DMA
653
	select HAVE_PCSPKR_PLATFORM
654
	select HW_HAS_EISA
L
Linus Torvalds 已提交
655
	select HW_HAS_PCI
656
	select IRQ_CPU
657
	select I8253
L
Linus Torvalds 已提交
658 659
	select I8259
	select ISA
660
	select SWAP_IO_SPACE if CPU_BIG_ENDIAN
661
	select SYS_HAS_CPU_R4X00
662
	select SYS_HAS_CPU_R5000
663
	select SYS_HAS_CPU_R10000
664
	select R5000_CPU_SCACHE
665
	select SYS_HAS_EARLY_PRINTK
666
	select SYS_SUPPORTS_32BIT_KERNEL
667
	select SYS_SUPPORTS_64BIT_KERNEL
668
	select SYS_SUPPORTS_BIG_ENDIAN
R
Ralf Baechle 已提交
669
	select SYS_SUPPORTS_HIGHMEM
670
	select SYS_SUPPORTS_LITTLE_ENDIAN
L
Linus Torvalds 已提交
671
	help
672 673
	  The SNI RM200/300/400 are MIPS-based machines manufactured by
	  Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
L
Linus Torvalds 已提交
674 675 676
	  Technology and now in turn merged with Fujitsu.  Say Y here to
	  support this machine type.

677 678
config MACH_TX39XX
	bool "Toshiba TX39 series based machines"
679

680 681
config MACH_TX49XX
	bool "Toshiba TX49 series based machines"
682

683 684 685 686 687 688 689 690 691 692 693 694
config MIKROTIK_RB532
	bool "Mikrotik RB532 boards"
	select CEVT_R4K
	select CSRC_R4K
	select DMA_NONCOHERENT
	select HW_HAS_PCI
	select IRQ_CPU
	select SYS_HAS_CPU_MIPS32_R1
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select SWAP_IO_SPACE
	select BOOT_RAW
695
	select ARCH_REQUIRE_GPIOLIB
696 697 698 699
	help
	  Support the Mikrotik(tm) RouterBoard 532 series,
	  based on the IDT RC32434 SoC.

700 701
config CAVIUM_OCTEON_SOC
	bool "Cavium Networks Octeon SoC based boards"
702 703 704 705 706
	select CEVT_R4K
	select 64BIT_PHYS_ADDR
	select DMA_COHERENT
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
R
Ralf Baechle 已提交
707
	select EDAC_SUPPORT
708
	select SYS_SUPPORTS_HOTPLUG_CPU
709
	select SYS_HAS_EARLY_PRINTK
710
	select SYS_HAS_CPU_CAVIUM_OCTEON
711
	select SWAP_IO_SPACE
712
	select HW_HAS_PCI
D
David Daney 已提交
713
	select ZONE_DMA32
714 715
	select USB_ARCH_HAS_OHCI
	select USB_ARCH_HAS_EHCI
716
	select HOLES_IN_ZONE
717
	select ARCH_REQUIRE_GPIOLIB
718 719 720 721 722 723 724 725 726 727 728 729 730
	help
	  This option supports all of the Octeon reference boards from Cavium
	  Networks. It builds a kernel that dynamically determines the Octeon
	  CPU type and supports all known board reference implementations.
	  Some of the supported boards are:
		EBT3000
		EBH3000
		EBH3100
		Thunder
		Kodama
		Hikari
	  Say Y here for most Octeon reference boards.

731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748
config NLM_XLR_BOARD
	bool "Netlogic XLR/XLS based systems"
	select BOOT_ELF32
	select NLM_COMMON
	select SYS_HAS_CPU_XLR
	select SYS_SUPPORTS_SMP
	select HW_HAS_PCI
	select SWAP_IO_SPACE
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
	select 64BIT_PHYS_ADDR
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_HIGHMEM
	select DMA_COHERENT
	select NR_CPUS_DEFAULT_32
	select CEVT_R4K
	select CSRC_R4K
	select IRQ_CPU
749
	select ZONE_DMA32 if 64BIT
750 751
	select SYNC_R4K
	select SYS_HAS_EARLY_PRINTK
752 753
	select USB_ARCH_HAS_OHCI if USB_SUPPORT
	select USB_ARCH_HAS_EHCI if USB_SUPPORT
754 755
	select SYS_SUPPORTS_ZBOOT
	select SYS_SUPPORTS_ZBOOT_UART16550
756 757 758 759
	help
	  Support for systems based on Netlogic XLR and XLS processors.
	  Say Y here if you have a XLR or XLS based board.

760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777
config NLM_XLP_BOARD
	bool "Netlogic XLP based systems"
	select BOOT_ELF32
	select NLM_COMMON
	select SYS_HAS_CPU_XLP
	select SYS_SUPPORTS_SMP
	select HW_HAS_PCI
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
	select 64BIT_PHYS_ADDR
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select SYS_SUPPORTS_HIGHMEM
	select DMA_COHERENT
	select NR_CPUS_DEFAULT_32
	select CEVT_R4K
	select CSRC_R4K
	select IRQ_CPU
778
	select ZONE_DMA32 if 64BIT
779 780
	select SYNC_R4K
	select SYS_HAS_EARLY_PRINTK
781
	select USE_OF
782 783
	select SYS_SUPPORTS_ZBOOT
	select SYS_SUPPORTS_ZBOOT_UART16550
784 785 786 787
	help
	  This board is based on Netlogic XLP Processor.
	  Say Y here if you have a XLP based board.

788
endchoice
L
Linus Torvalds 已提交
789

R
Ralf Baechle 已提交
790
source "arch/mips/alchemy/Kconfig"
791
source "arch/mips/ath79/Kconfig"
792
source "arch/mips/bcm47xx/Kconfig"
793
source "arch/mips/bcm63xx/Kconfig"
794
source "arch/mips/jazz/Kconfig"
795
source "arch/mips/jz4740/Kconfig"
796
source "arch/mips/lantiq/Kconfig"
797
source "arch/mips/lasat/Kconfig"
R
Ralf Baechle 已提交
798
source "arch/mips/pmcs-msp71xx/Kconfig"
J
John Crispin 已提交
799
source "arch/mips/ralink/Kconfig"
800
source "arch/mips/sgi-ip27/Kconfig"
801
source "arch/mips/sibyte/Kconfig"
A
Atsushi Nemoto 已提交
802
source "arch/mips/txx9/Kconfig"
803
source "arch/mips/vr41xx/Kconfig"
804
source "arch/mips/cavium-octeon/Kconfig"
805
source "arch/mips/loongson/Kconfig"
806
source "arch/mips/loongson1/Kconfig"
807
source "arch/mips/netlogic/Kconfig"
808

809 810
endmenu

L
Linus Torvalds 已提交
811 812 813 814 815 816 817
config RWSEM_GENERIC_SPINLOCK
	bool
	default y

config RWSEM_XCHGADD_ALGORITHM
	bool

818 819 820 821 822 823 824 825
config ARCH_HAS_ILOG2_U32
	bool
	default n

config ARCH_HAS_ILOG2_U64
	bool
	default n

826 827 828 829
config GENERIC_HWEIGHT
	bool
	default y

L
Linus Torvalds 已提交
830 831 832 833
config GENERIC_CALIBRATE_DELAY
	bool
	default y

834
config SCHED_OMIT_FRAME_POINTER
835 836 837
	bool
	default y

L
Linus Torvalds 已提交
838 839 840
#
# Select some configuration options automatically based on user selections.
#
841
config FW_ARC
L
Linus Torvalds 已提交
842 843
	bool

844 845 846
config ARCH_MAY_HAVE_PC_FDC
	bool

M
Marc St-Jean 已提交
847 848 849
config BOOT_RAW
	bool

850 851 852
config CEVT_BCM1480
	bool

853 854 855
config CEVT_DS1287
	bool

856 857 858
config CEVT_GT641XX
	bool

859 860 861
config CEVT_R4K
	bool

862 863 864
config CEVT_GIC
	bool

865 866 867
config CEVT_SB1250
	bool

868 869 870
config CEVT_TXX9
	bool

871 872 873
config CSRC_BCM1480
	bool

874 875 876
config CSRC_IOASIC
	bool

877 878 879
config CSRC_R4K
	bool

S
Steven J. Hill 已提交
880 881 882
config CSRC_GIC
	bool

883 884 885
config CSRC_SB1250
	bool

886
config GPIO_TXX9
M
Michael Buesch 已提交
887
	select ARCH_REQUIRE_GPIOLIB
888 889
	bool

890
config FW_CFE
891 892
	bool

893 894 895
config ARCH_DMA_ADDR_T_64BIT
	def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT

896 897 898 899
config DMA_MAYBE_COHERENT
	select DMA_NONCOHERENT
	bool

900
config DMA_COHERENT
L
Linus Torvalds 已提交
901 902
	bool

903 904
config DMA_NONCOHERENT
	bool
905
	select NEED_DMA_MAP_STATE
906

907
config NEED_DMA_MAP_STATE
L
Linus Torvalds 已提交
908 909
	bool

910
config SYS_HAS_EARLY_PRINTK
L
Linus Torvalds 已提交
911 912
	bool

913
config HOTPLUG_CPU
914
	bool "Support for hot-pluggable CPUs"
915
	depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
916 917 918 919 920 921 922 923
	help
	  Say Y here to allow turning CPUs off and on. CPUs can be
	  controlled through /sys/devices/system/cpu.
	  (Note: power management support will enable this option
	    automatically on SMP systems. )
	  Say N if you want to disable CPU hotplug.

config SYS_SUPPORTS_HOTPLUG_CPU
924 925
	bool

L
Linus Torvalds 已提交
926 927 928 929 930 931 932 933 934
config I8259
	bool

config MIPS_BONITO64
	bool

config MIPS_MSC
	bool

935 936 937
config MIPS_NILE4
	bool

938 939 940
config SYNC_R4K
	bool

941 942 943
config MIPS_MACHINE
	def_bool n

944 945 946
config NO_IOPORT
	def_bool n

947 948 949
config GENERIC_ISA_DMA
	bool
	select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
950
	select ISA_DMA_API
951

952 953
config GENERIC_ISA_DMA_SUPPORT_BROKEN
	bool
954
	select GENERIC_ISA_DMA
955

956 957 958
config ISA_DMA_API
	bool

959 960 961
config HOLES_IN_ZONE
	bool

962
#
M
Masanari Iida 已提交
963
# Endianness selection.  Sufficiently obscure so many users don't know what to
964 965 966 967
# answer,so we try hard to limit the available choices.  Also the use of a
# choice statement should be more obvious to the user.
#
choice
M
Masanari Iida 已提交
968
	prompt "Endianness selection"
L
Linus Torvalds 已提交
969 970
	help
	  Some MIPS machines can be configured for either little or big endian
971
	  byte order. These modes require different kernels and a different
M
Matt LaPlante 已提交
972
	  Linux distribution.  In general there is one preferred byteorder for a
973
	  particular system but some systems are just as commonly used in the
974
	  one or the other endianness.
975 976 977 978 979 980 981 982 983 984 985

config CPU_BIG_ENDIAN
	bool "Big endian"
	depends on SYS_SUPPORTS_BIG_ENDIAN

config CPU_LITTLE_ENDIAN
	bool "Little endian"
	depends on SYS_SUPPORTS_LITTLE_ENDIAN

endchoice

986 987 988
config EXPORT_UASM
	bool

989 990 991
config SYS_SUPPORTS_APM_EMULATION
	bool

992 993 994 995 996
config SYS_SUPPORTS_BIG_ENDIAN
	bool

config SYS_SUPPORTS_LITTLE_ENDIAN
	bool
L
Linus Torvalds 已提交
997

998 999 1000 1001 1002
config SYS_SUPPORTS_HUGETLBFS
	bool
	depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
	default y

1003 1004 1005
config MIPS_HUGE_TLB_SUPPORT
	def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE

L
Linus Torvalds 已提交
1006 1007 1008 1009 1010 1011
config IRQ_CPU
	bool

config IRQ_CPU_RM7K
	bool

M
Marc St-Jean 已提交
1012 1013 1014 1015 1016 1017
config IRQ_MSP_SLP
	bool

config IRQ_MSP_CIC
	bool

1018 1019 1020
config IRQ_TXX9
	bool

Y
Yoichi Yuasa 已提交
1021 1022 1023
config IRQ_GT641XX
	bool

1024 1025 1026
config IRQ_GIC
	bool

1027
config PCI_GT64XXX_PCI0
L
Linus Torvalds 已提交
1028 1029
	bool

M
Marc St-Jean 已提交
1030 1031 1032
config NO_EXCEPT_FILL
	bool

1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044
config SOC_EMMA2RH
	bool
	select CEVT_R4K
	select CSRC_R4K
	select DMA_NONCOHERENT
	select IRQ_CPU
	select SWAP_IO_SPACE
	select SYS_HAS_CPU_R5500
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN

1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060
config SOC_PNX833X
	bool
	select CEVT_R4K
	select CSRC_R4K
	select IRQ_CPU
	select DMA_NONCOHERENT
	select SYS_HAS_CPU_MIPS32_R2
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select SYS_SUPPORTS_BIG_ENDIAN
	select CPU_MIPSR2_IRQ_VI

config SOC_PNX8335
	bool
	select SOC_PNX833X

L
Linus Torvalds 已提交
1061 1062 1063
config SWAP_IO_SPACE
	bool

T
Thomas Bogendoerfer 已提交
1064 1065 1066
config SGI_HAS_INDYDOG
	bool

1067 1068 1069
config SGI_HAS_HAL2
	bool

T
Thomas Bogendoerfer 已提交
1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084
config SGI_HAS_SEEQ
	bool

config SGI_HAS_WD93
	bool

config SGI_HAS_ZILOG
	bool

config SGI_HAS_I8042
	bool

config DEFAULT_SGI_PARTITION
	bool

1085
config FW_ARC32
1086 1087
	bool

P
Paul Bolle 已提交
1088
config FW_SNIPROM
1089 1090
	bool

L
Linus Torvalds 已提交
1091 1092 1093 1094 1095
config BOOT_ELF32
	bool

config MIPS_L1_CACHE_SHIFT
	int
1096
	default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL || SOC_RT288X
1097
	default "6" if MIPS_CPU_SCACHE
1098
	default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON
L
Linus Torvalds 已提交
1099 1100 1101 1102 1103 1104 1105
	default "5"

config HAVE_STD_PC_SERIAL_PORT
	bool

config ARC_CONSOLE
	bool "ARC console support"
T
Thomas Bogendoerfer 已提交
1106
	depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
L
Linus Torvalds 已提交
1107 1108 1109

config ARC_MEMORY
	bool
1110
	depends on MACH_JAZZ || SNI_RM || SGI_IP32
L
Linus Torvalds 已提交
1111 1112 1113 1114
	default y

config ARC_PROMLIB
	bool
T
Thomas Bogendoerfer 已提交
1115
	depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
L
Linus Torvalds 已提交
1116 1117
	default y

1118
config FW_ARC64
L
Linus Torvalds 已提交
1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129
	bool

config BOOT_ELF64
	bool

menu "CPU selection"

choice
	prompt "CPU type"
	default CPU_R4X00

1130 1131 1132 1133
config CPU_LOONGSON2E
	bool "Loongson 2E"
	depends on SYS_HAS_CPU_LOONGSON2E
	select CPU_LOONGSON2
1134 1135 1136 1137
	help
	  The Loongson 2E processor implements the MIPS III instruction set
	  with many extensions.

L
Lucas De Marchi 已提交
1138
	  It has an internal FPGA northbridge, which is compatible to
1139 1140 1141 1142 1143 1144
	  bonito64.

config CPU_LOONGSON2F
	bool "Loongson 2F"
	depends on SYS_HAS_CPU_LOONGSON2F
	select CPU_LOONGSON2
1145
	select ARCH_REQUIRE_GPIOLIB
1146 1147 1148 1149 1150 1151 1152 1153
	help
	  The Loongson 2F processor implements the MIPS III instruction set
	  with many extensions.

	  Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
	  have a similar programming interface with FPGA northbridge used in
	  Loongson2E.

1154 1155 1156 1157 1158 1159 1160 1161
config CPU_LOONGSON1B
	bool "Loongson 1B"
	depends on SYS_HAS_CPU_LOONGSON1B
	select CPU_LOONGSON1
	help
	  The Loongson 1B is a 32-bit SoC, which implements the MIPS32
	  release 2 instruction set.

1162 1163
config CPU_MIPS32_R1
	bool "MIPS32 Release 1"
1164
	depends on SYS_HAS_CPU_MIPS32_R1
1165
	select CPU_HAS_PREFETCH
R
Ralf Baechle 已提交
1166
	select CPU_SUPPORTS_32BIT_KERNEL
1167
	select CPU_SUPPORTS_HIGHMEM
R
Ralf Baechle 已提交
1168
	help
1169
	  Choose this option to build a kernel for release 1 or later of the
R
Ralf Baechle 已提交
1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180
	  MIPS32 architecture.  Most modern embedded systems with a 32-bit
	  MIPS processor are based on a MIPS32 processor.  If you know the
	  specific type of processor in your system, choose those that one
	  otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
	  Release 2 of the MIPS32 architecture is available since several
	  years so chances are you even have a MIPS32 Release 2 processor
	  in which case you should choose CPU_MIPS32_R2 instead for better
	  performance.

config CPU_MIPS32_R2
	bool "MIPS32 Release 2"
1181
	depends on SYS_HAS_CPU_MIPS32_R2
R
Ralf Baechle 已提交
1182
	select CPU_HAS_PREFETCH
R
Ralf Baechle 已提交
1183
	select CPU_SUPPORTS_32BIT_KERNEL
1184
	select CPU_SUPPORTS_HIGHMEM
1185
	select HAVE_KVM
1186
	help
1187
	  Choose this option to build a kernel for release 2 or later of the
1188 1189 1190 1191 1192 1193 1194
	  MIPS32 architecture.  Most modern embedded systems with a 32-bit
	  MIPS processor are based on a MIPS32 processor.  If you know the
	  specific type of processor in your system, choose those that one
	  otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.

config CPU_MIPS64_R1
	bool "MIPS64 Release 1"
1195
	depends on SYS_HAS_CPU_MIPS64_R1
R
Ralf Baechle 已提交
1196
	select CPU_HAS_PREFETCH
1197 1198
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1199
	select CPU_SUPPORTS_HIGHMEM
1200
	select CPU_SUPPORTS_HUGEPAGES
1201 1202 1203 1204 1205 1206
	help
	  Choose this option to build a kernel for release 1 or later of the
	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
	  MIPS processor are based on a MIPS64 processor.  If you know the
	  specific type of processor in your system, choose those that one
	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
R
Ralf Baechle 已提交
1207 1208 1209 1210 1211 1212 1213
	  Release 2 of the MIPS64 architecture is available since several
	  years so chances are you even have a MIPS64 Release 2 processor
	  in which case you should choose CPU_MIPS64_R2 instead for better
	  performance.

config CPU_MIPS64_R2
	bool "MIPS64 Release 2"
1214
	depends on SYS_HAS_CPU_MIPS64_R2
R
Ralf Baechle 已提交
1215
	select CPU_HAS_PREFETCH
R
Ralf Baechle 已提交
1216 1217
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1218
	select CPU_SUPPORTS_HIGHMEM
1219
	select CPU_SUPPORTS_HUGEPAGES
R
Ralf Baechle 已提交
1220 1221 1222 1223 1224 1225
	help
	  Choose this option to build a kernel for release 2 or later of the
	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
	  MIPS processor are based on a MIPS64 processor.  If you know the
	  specific type of processor in your system, choose those that one
	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
L
Linus Torvalds 已提交
1226 1227 1228

config CPU_R3000
	bool "R3000"
1229
	depends on SYS_HAS_CPU_R3000
1230
	select CPU_HAS_WB
1231
	select CPU_SUPPORTS_32BIT_KERNEL
R
Ralf Baechle 已提交
1232
	select CPU_SUPPORTS_HIGHMEM
L
Linus Torvalds 已提交
1233 1234 1235 1236 1237 1238 1239 1240 1241 1242
	help
	  Please make sure to pick the right CPU type. Linux/MIPS is not
	  designed to be generic, i.e. Kernels compiled for R3000 CPUs will
	  *not* work on R4000 machines and vice versa.  However, since most
	  of the supported machines have an R4000 (or similar) CPU, R4x00
	  might be a safe bet.  If the resulting kernel does not work,
	  try to recompile with R3000.

config CPU_TX39XX
	bool "R39XX"
1243
	depends on SYS_HAS_CPU_TX39XX
1244
	select CPU_SUPPORTS_32BIT_KERNEL
L
Linus Torvalds 已提交
1245 1246 1247

config CPU_VR41XX
	bool "R41xx"
1248
	depends on SYS_HAS_CPU_VR41XX
1249 1250
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
L
Linus Torvalds 已提交
1251
	help
1252
	  The options selects support for the NEC VR4100 series of processors.
L
Linus Torvalds 已提交
1253 1254 1255 1256 1257 1258
	  Only choose this option if you have one of these processors as a
	  kernel built with this option will not run on any other type of
	  processor or vice versa.

config CPU_R4300
	bool "R4300"
1259
	depends on SYS_HAS_CPU_R4300
1260 1261
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
L
Linus Torvalds 已提交
1262 1263 1264 1265 1266
	help
	  MIPS Technologies R4300-series processors.

config CPU_R4X00
	bool "R4x00"
1267
	depends on SYS_HAS_CPU_R4X00
1268 1269
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1270
	select CPU_SUPPORTS_HUGEPAGES
L
Linus Torvalds 已提交
1271 1272 1273 1274 1275 1276
	help
	  MIPS Technologies R4000-series processors other than 4300, including
	  the R4000, R4400, R4600, and 4700.

config CPU_TX49XX
	bool "R49XX"
1277
	depends on SYS_HAS_CPU_TX49XX
A
Atsushi Nemoto 已提交
1278
	select CPU_HAS_PREFETCH
1279 1280
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1281
	select CPU_SUPPORTS_HUGEPAGES
L
Linus Torvalds 已提交
1282 1283 1284

config CPU_R5000
	bool "R5000"
1285
	depends on SYS_HAS_CPU_R5000
1286 1287
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1288
	select CPU_SUPPORTS_HUGEPAGES
L
Linus Torvalds 已提交
1289 1290 1291 1292 1293
	help
	  MIPS Technologies R5000-series processors other than the Nevada.

config CPU_R5432
	bool "R5432"
1294
	depends on SYS_HAS_CPU_R5432
1295 1296
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1297
	select CPU_SUPPORTS_HUGEPAGES
L
Linus Torvalds 已提交
1298

1299 1300 1301 1302 1303
config CPU_R5500
	bool "R5500"
	depends on SYS_HAS_CPU_R5500
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1304
	select CPU_SUPPORTS_HUGEPAGES
1305 1306 1307 1308
	help
	  NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
	  instruction set.

L
Linus Torvalds 已提交
1309 1310
config CPU_R6000
	bool "R6000"
1311
	depends on SYS_HAS_CPU_R6000
1312
	select CPU_SUPPORTS_32BIT_KERNEL
L
Linus Torvalds 已提交
1313 1314
	help
	  MIPS Technologies R6000 and R6000A series processors.  Note these
C
Chris Dearman 已提交
1315
	  processors are extremely rare and the support for them is incomplete.
L
Linus Torvalds 已提交
1316 1317 1318

config CPU_NEVADA
	bool "RM52xx"
1319
	depends on SYS_HAS_CPU_NEVADA
1320 1321
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1322
	select CPU_SUPPORTS_HUGEPAGES
L
Linus Torvalds 已提交
1323 1324 1325 1326 1327
	help
	  QED / PMC-Sierra RM52xx-series ("Nevada") processors.

config CPU_R8000
	bool "R8000"
1328
	depends on SYS_HAS_CPU_R8000
1329
	select CPU_HAS_PREFETCH
1330
	select CPU_SUPPORTS_64BIT_KERNEL
L
Linus Torvalds 已提交
1331 1332 1333 1334 1335 1336
	help
	  MIPS Technologies R8000 processors.  Note these processors are
	  uncommon and the support for them is incomplete.

config CPU_R10000
	bool "R10000"
1337
	depends on SYS_HAS_CPU_R10000
1338
	select CPU_HAS_PREFETCH
1339 1340
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
R
Ralf Baechle 已提交
1341
	select CPU_SUPPORTS_HIGHMEM
1342
	select CPU_SUPPORTS_HUGEPAGES
L
Linus Torvalds 已提交
1343 1344 1345 1346 1347
	help
	  MIPS Technologies R10000-series processors.

config CPU_RM7000
	bool "RM7000"
1348
	depends on SYS_HAS_CPU_RM7000
1349
	select CPU_HAS_PREFETCH
1350 1351
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
R
Ralf Baechle 已提交
1352
	select CPU_SUPPORTS_HIGHMEM
1353
	select CPU_SUPPORTS_HUGEPAGES
L
Linus Torvalds 已提交
1354 1355 1356

config CPU_SB1
	bool "SB1"
1357
	depends on SYS_HAS_CPU_SB1
1358 1359
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
R
Ralf Baechle 已提交
1360
	select CPU_SUPPORTS_HIGHMEM
1361
	select CPU_SUPPORTS_HUGEPAGES
1362
	select WEAK_ORDERING
L
Linus Torvalds 已提交
1363

1364 1365
config CPU_CAVIUM_OCTEON
	bool "Cavium Octeon processor"
1366
	depends on SYS_HAS_CPU_CAVIUM_OCTEON
1367
	select ARCH_SPARSEMEM_ENABLE
1368 1369 1370 1371 1372 1373
	select CPU_HAS_PREFETCH
	select CPU_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_SMP
	select NR_CPUS_DEFAULT_16
	select WEAK_ORDERING
	select CPU_SUPPORTS_HIGHMEM
1374
	select CPU_SUPPORTS_HUGEPAGES
1375 1376
	select LIBFDT
	select USE_OF
1377
	select USB_EHCI_BIG_ENDIAN_MMIO
1378 1379 1380 1381 1382 1383
	help
	  The Cavium Octeon processor is a highly integrated chip containing
	  many ethernet hardware widgets for networking tasks. The processor
	  can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
	  Full details can be found at http://www.caviumnetworks.com.

1384 1385 1386 1387
config CPU_BMIPS
	bool "Broadcom BMIPS"
	depends on SYS_HAS_CPU_BMIPS
	select CPU_MIPS32
1388
	select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1389 1390 1391 1392 1393 1394 1395 1396
	select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
	select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
	select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
	select CPU_SUPPORTS_32BIT_KERNEL
	select DMA_NONCOHERENT
	select IRQ_CPU
	select SWAP_IO_SPACE
	select WEAK_ORDERING
1397
	select CPU_SUPPORTS_HIGHMEM
1398
	select CPU_HAS_PREFETCH
1399
	help
1400
	  Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1401

1402 1403 1404 1405 1406 1407
config CPU_XLR
	bool "Netlogic XLR SoC"
	depends on SYS_HAS_CPU_XLR
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
1408
	select CPU_SUPPORTS_HUGEPAGES
1409 1410 1411 1412
	select WEAK_ORDERING
	select WEAK_REORDERING_BEYOND_LLSC
	help
	  Netlogic Microsystems XLR/XLS processors.
1413 1414 1415 1416 1417 1418 1419 1420 1421 1422

config CPU_XLP
	bool "Netlogic XLP SoC"
	depends on SYS_HAS_CPU_XLP
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
	select WEAK_ORDERING
	select WEAK_REORDERING_BEYOND_LLSC
	select CPU_HAS_PREFETCH
1423
	select CPU_MIPSR2
1424 1425
	help
	  Netlogic Microsystems XLP processors.
L
Linus Torvalds 已提交
1426 1427
endchoice

1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454
if CPU_LOONGSON2F
config CPU_NOP_WORKAROUNDS
	bool

config CPU_JUMP_WORKAROUNDS
	bool

config CPU_LOONGSON2F_WORKAROUNDS
	bool "Loongson 2F Workarounds"
	default y
	select CPU_NOP_WORKAROUNDS
	select CPU_JUMP_WORKAROUNDS
	help
	  Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
	  require workarounds.  Without workarounds the system may hang
	  unexpectedly.  For more information please refer to the gas
	  -mfix-loongson2f-nop and -mfix-loongson2f-jump options.

	  Loongson 2F03 and later have fixed these issues and no workarounds
	  are needed.  The workarounds have no significant side effect on them
	  but may decrease the performance of the system so this option should
	  be disabled unless the kernel is intended to be run on 2F01 or 2F02
	  systems.

	  If unsure, please say Y.
endif # CPU_LOONGSON2F

1455 1456 1457 1458
config SYS_SUPPORTS_ZBOOT
	bool
	select HAVE_KERNEL_GZIP
	select HAVE_KERNEL_BZIP2
1459
	select HAVE_KERNEL_LZ4
1460
	select HAVE_KERNEL_LZMA
1461
	select HAVE_KERNEL_LZO
1462
	select HAVE_KERNEL_XZ
1463 1464 1465 1466 1467

config SYS_SUPPORTS_ZBOOT_UART16550
	bool
	select SYS_SUPPORTS_ZBOOT

1468 1469 1470 1471 1472
config CPU_LOONGSON2
	bool
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
1473
	select CPU_SUPPORTS_HUGEPAGES
1474

1475 1476 1477 1478 1479 1480 1481 1482
config CPU_LOONGSON1
	bool
	select CPU_MIPS32
	select CPU_MIPSR2
	select CPU_HAS_PREFETCH
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM

1483
config CPU_BMIPS32_3300
1484
	select SMP_UP if SMP
1485
	bool
1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501

config CPU_BMIPS4350
	bool
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_HOTPLUG_CPU

config CPU_BMIPS4380
	bool
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_HOTPLUG_CPU

config CPU_BMIPS5000
	bool
	select MIPS_CPU_SCACHE
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_HOTPLUG_CPU
1502

1503
config SYS_HAS_CPU_LOONGSON2E
1504 1505
	bool

1506 1507
config SYS_HAS_CPU_LOONGSON2F
	bool
1508 1509
	select CPU_SUPPORTS_CPUFREQ
	select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1510
	select CPU_SUPPORTS_UNCACHED_ACCELERATED
1511

1512 1513 1514
config SYS_HAS_CPU_LOONGSON1B
	bool

1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550
config SYS_HAS_CPU_MIPS32_R1
	bool

config SYS_HAS_CPU_MIPS32_R2
	bool

config SYS_HAS_CPU_MIPS64_R1
	bool

config SYS_HAS_CPU_MIPS64_R2
	bool

config SYS_HAS_CPU_R3000
	bool

config SYS_HAS_CPU_TX39XX
	bool

config SYS_HAS_CPU_VR41XX
	bool

config SYS_HAS_CPU_R4300
	bool

config SYS_HAS_CPU_R4X00
	bool

config SYS_HAS_CPU_TX49XX
	bool

config SYS_HAS_CPU_R5000
	bool

config SYS_HAS_CPU_R5432
	bool

1551 1552 1553
config SYS_HAS_CPU_R5500
	bool

1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569 1570 1571
config SYS_HAS_CPU_R6000
	bool

config SYS_HAS_CPU_NEVADA
	bool

config SYS_HAS_CPU_R8000
	bool

config SYS_HAS_CPU_R10000
	bool

config SYS_HAS_CPU_RM7000
	bool

config SYS_HAS_CPU_SB1
	bool

1572 1573 1574
config SYS_HAS_CPU_CAVIUM_OCTEON
	bool

1575 1576 1577
config SYS_HAS_CPU_BMIPS
	bool

1578
config SYS_HAS_CPU_BMIPS32_3300
1579
	bool
1580
	select SYS_HAS_CPU_BMIPS
1581 1582 1583

config SYS_HAS_CPU_BMIPS4350
	bool
1584
	select SYS_HAS_CPU_BMIPS
1585 1586 1587

config SYS_HAS_CPU_BMIPS4380
	bool
1588
	select SYS_HAS_CPU_BMIPS
1589 1590 1591

config SYS_HAS_CPU_BMIPS5000
	bool
1592
	select SYS_HAS_CPU_BMIPS
1593

1594 1595 1596
config SYS_HAS_CPU_XLR
	bool

1597 1598 1599
config SYS_HAS_CPU_XLP
	bool

1600 1601 1602 1603
#
# CPU may reorder R->R, R->W, W->R, W->W
# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
#
1604 1605
config WEAK_ORDERING
	bool
1606 1607 1608 1609 1610 1611 1612

#
# CPU may reorder reads and writes beyond LL/SC
# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
#
config WEAK_REORDERING_BEYOND_LLSC
	bool
1613 1614 1615
endmenu

#
C
Chris Dearman 已提交
1616
# These two indicate any level of the MIPS32 and MIPS64 architecture
1617 1618 1619 1620 1621 1622 1623 1624 1625 1626
#
config CPU_MIPS32
	bool
	default y if CPU_MIPS32_R1 || CPU_MIPS32_R2

config CPU_MIPS64
	bool
	default y if CPU_MIPS64_R1 || CPU_MIPS64_R2

#
C
Chris Dearman 已提交
1627
# These two indicate the revision of the architecture, either Release 1 or Release 2
1628 1629 1630 1631 1632 1633 1634
#
config CPU_MIPSR1
	bool
	default y if CPU_MIPS32_R1 || CPU_MIPS64_R1

config CPU_MIPSR2
	bool
1635
	default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1636 1637 1638 1639 1640 1641 1642 1643 1644

config SYS_SUPPORTS_32BIT_KERNEL
	bool
config SYS_SUPPORTS_64BIT_KERNEL
	bool
config CPU_SUPPORTS_32BIT_KERNEL
	bool
config CPU_SUPPORTS_64BIT_KERNEL
	bool
1645 1646 1647 1648
config CPU_SUPPORTS_CPUFREQ
	bool
config CPU_SUPPORTS_ADDRWINCFG
	bool
1649 1650
config CPU_SUPPORTS_HUGEPAGES
	bool
1651 1652
config CPU_SUPPORTS_UNCACHED_ACCELERATED
	bool
1653 1654
config MIPS_PGD_C0_CONTEXT
	bool
1655
	default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
1656

1657 1658 1659 1660 1661
#
# Set to y for ptrace access to watch registers.
#
config HARDWARE_WATCHPOINTS
       bool
1662
       default y if CPU_MIPSR1 || CPU_MIPSR2
1663

1664 1665 1666 1667 1668 1669 1670 1671 1672 1673 1674 1675 1676 1677 1678 1679 1680 1681 1682 1683 1684 1685 1686 1687
menu "Kernel type"

choice
	prompt "Kernel code model"
	help
	  You should only select this option if you have a workload that
	  actually benefits from 64-bit processing or if your machine has
	  large memory.  You will only be presented a single option in this
	  menu if your system does not support both 32-bit and 64-bit kernels.

config 32BIT
	bool "32-bit kernel"
	depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
	select TRAD_SIGNALS
	help
	  Select this option if you want to build a 32-bit kernel.
config 64BIT
	bool "64-bit kernel"
	depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
	help
	  Select this option if you want to build a 64-bit kernel.

endchoice

1688 1689
config KVM_GUEST
	bool "KVM Guest Kernel"
1690
	depends on BROKEN_ON_SMP
1691 1692 1693 1694 1695 1696 1697 1698 1699 1700 1701 1702
	help
	  Select this option if building a guest kernel for KVM (Trap & Emulate) mode

config KVM_HOST_FREQ
	int "KVM Host Processor Frequency (MHz)"
	depends on KVM_GUEST
	default 500
	help
	  Select this option if building a guest kernel for KVM to skip
	  RTC emulation when determining guest CPU Frequency.  Instead, the guest
	  processor frequency is automatically derived from the host frequency.

L
Linus Torvalds 已提交
1703 1704 1705 1706 1707 1708
choice
	prompt "Kernel page size"
	default PAGE_SIZE_4KB

config PAGE_SIZE_4KB
	bool "4kB"
W
Wu Zhangjin 已提交
1709
	depends on !CPU_LOONGSON2
L
Linus Torvalds 已提交
1710 1711 1712 1713 1714 1715 1716 1717
	help
	 This option select the standard 4kB Linux page size.  On some
	 R3000-family processors this is the only available page size.  Using
	 4kB page size will minimize memory consumption and is therefore
	 recommended for low memory systems.

config PAGE_SIZE_8KB
	bool "8kB"
1718
	depends on CPU_R8000 || CPU_CAVIUM_OCTEON
L
Linus Torvalds 已提交
1719 1720 1721
	help
	  Using 8kB page size will result in higher performance kernel at
	  the price of higher memory consumption.  This option is available
1722 1723
	  only on R8000 and cnMIPS processors.  Note that you will need a
	  suitable Linux distribution to support this.
L
Linus Torvalds 已提交
1724 1725 1726

config PAGE_SIZE_16KB
	bool "16kB"
1727
	depends on !CPU_R3000 && !CPU_TX39XX
L
Linus Torvalds 已提交
1728 1729 1730
	help
	  Using 16kB page size will result in higher performance kernel at
	  the price of higher memory consumption.  This option is available on
1731 1732
	  all non-R3000 family processors.  Note that you will need a suitable
	  Linux distribution to support this.
L
Linus Torvalds 已提交
1733

1734 1735 1736 1737 1738 1739 1740 1741 1742
config PAGE_SIZE_32KB
	bool "32kB"
	depends on CPU_CAVIUM_OCTEON
	help
	  Using 32kB page size will result in higher performance kernel at
	  the price of higher memory consumption.  This option is available
	  only on cnMIPS cores.  Note that you will need a suitable Linux
	  distribution to support this.

L
Linus Torvalds 已提交
1743 1744
config PAGE_SIZE_64KB
	bool "64kB"
1745
	depends on !CPU_R3000 && !CPU_TX39XX
L
Linus Torvalds 已提交
1746 1747 1748 1749
	help
	  Using 64kB page size will result in higher performance kernel at
	  the price of higher memory consumption.  This option is available on
	  all non-R3000 family processor.  Not that at the time of this
1750
	  writing this option is still high experimental.
L
Linus Torvalds 已提交
1751 1752 1753

endchoice

1754 1755
config FORCE_MAX_ZONEORDER
	int "Maximum zone order"
1756 1757 1758 1759 1760 1761
	range 14 64 if HUGETLB_PAGE && PAGE_SIZE_64KB
	default "14" if HUGETLB_PAGE && PAGE_SIZE_64KB
	range 13 64 if HUGETLB_PAGE && PAGE_SIZE_32KB
	default "13" if HUGETLB_PAGE && PAGE_SIZE_32KB
	range 12 64 if HUGETLB_PAGE && PAGE_SIZE_16KB
	default "12" if HUGETLB_PAGE && PAGE_SIZE_16KB
1762 1763 1764 1765 1766 1767 1768 1769 1770 1771 1772 1773 1774 1775 1776 1777
	range 11 64
	default "11"
	help
	  The kernel memory allocator divides physically contiguous memory
	  blocks into "zones", where each zone is a power of two number of
	  pages.  This option selects the largest power of two that the kernel
	  keeps in the memory allocator.  If you need to allocate very large
	  blocks of physically contiguous memory, then you may need to
	  increase this value.

	  This config option is actually maximum order plus one. For example,
	  a value of 11 means that the largest free memory block is 2^10 pages.

	  The page size is not necessarily 4KB.  Keep this in mind
	  when choosing a value for this option.

1778 1779 1780 1781 1782 1783 1784 1785 1786
config CEVT_GIC
	bool "Use GIC global counter for clock events"
	depends on IRQ_GIC && !(MIPS_SEAD3 || MIPS_MT_SMTC)
	help
	  Use the GIC global counter for the clock events. The R4K clock
	  event driver is always present, so if the platform ends up not
	  detecting a GIC, it will fall back to the R4K timer for the
	  generation of clock events.

L
Linus Torvalds 已提交
1787 1788 1789 1790 1791 1792 1793
config BOARD_SCACHE
	bool

config IP22_CPU_SCACHE
	bool
	select BOARD_SCACHE

1794 1795 1796 1797 1798 1799 1800
#
# Support for a MIPS32 / MIPS64 style S-caches
#
config MIPS_CPU_SCACHE
	bool
	select BOARD_SCACHE

L
Linus Torvalds 已提交
1801 1802 1803 1804 1805 1806 1807 1808 1809 1810 1811 1812 1813 1814 1815 1816 1817
config R5000_CPU_SCACHE
	bool
	select BOARD_SCACHE

config RM7000_CPU_SCACHE
	bool
	select BOARD_SCACHE

config SIBYTE_DMA_PAGEOPS
	bool "Use DMA to clear/copy pages"
	depends on CPU_SB1
	help
	  Instead of using the CPU to zero and copy pages, use a Data Mover
	  channel.  These DMA channels are otherwise unused by the standard
	  SiByte Linux port.  Seems to give a small performance benefit.

config CPU_HAS_PREFETCH
1818
	bool
L
Linus Torvalds 已提交
1819

1820 1821 1822 1823
config CPU_GENERIC_DUMP_TLB
	bool
	default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)

F
Florian Fainelli 已提交
1824 1825 1826 1827
config CPU_R4K_FPU
	bool
	default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)

1828 1829 1830 1831
config CPU_R4K_CACHE_TLB
	bool
	default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)

R
Ralf Baechle 已提交
1832 1833
choice
	prompt "MIPS MT options"
1834 1835

config MIPS_MT_DISABLED
1836
	bool "Disable multithreading support"
1837
	help
1838 1839 1840 1841
	  Use this option if your platform does not support the MT ASE
	  which is hardware multithreading support. On systems without
	  an MT-enabled processor, this will be the only option that is
	  available in this menu.
R
Ralf Baechle 已提交
1842

R
Ralf Baechle 已提交
1843 1844
config MIPS_MT_SMP
	bool "Use 1 TC on each available VPE for SMP"
1845
	depends on SYS_SUPPORTS_MULTITHREADING
1846
	select CPU_MIPSR2_IRQ_VI
1847
	select CPU_MIPSR2_IRQ_EI
1848
	select SYNC_R4K
1849
	select MIPS_MT
1850
	select SMP
1851
	select SMP_UP
1852 1853
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_SCHED_SMT
1854
	select MIPS_PERF_SHARED_TC_COUNTERS
1855
	help
1856 1857 1858 1859 1860
	  This is a kernel model which is known as SMVP. This is supported
	  on cores with the MT ASE and uses the available VPEs to implement
	  virtual processors which supports SMP. This is equivalent to the
	  Intel Hyperthreading feature. For further information go to
	  <http://www.imgtec.com/mips/mips-multithreading.asp>.
1861

R
Ralf Baechle 已提交
1862
config MIPS_MT_SMTC
1863
	bool "Use all TCs on all VPEs for SMP (DEPRECATED)"
R
Ralf Baechle 已提交
1864
	depends on CPU_MIPS32_R2
1865 1866
	depends on SYS_SUPPORTS_MULTITHREADING
	select CPU_MIPSR2_IRQ_VI
1867
	select CPU_MIPSR2_IRQ_EI
1868
	select MIPS_MT
R
Ralf Baechle 已提交
1869
	select SMP
1870
	select SMP_UP
1871 1872
	select SYS_SUPPORTS_SMP
	select NR_CPUS_DEFAULT_8
1873
	help
1874 1875 1876 1877
	  This is a kernel model which is known as SMTC. This is
	  supported on cores with the MT ASE and presents all TCs
	  available on all VPEs to support SMP. For further
	  information see <http://www.linux-mips.org/wiki/34K#SMTC>.
R
Ralf Baechle 已提交
1878 1879 1880

endchoice

1881 1882 1883
config MIPS_MT
	bool

1884 1885 1886 1887 1888 1889 1890 1891 1892 1893 1894 1895
config SCHED_SMT
	bool "SMT (multithreading) scheduler support"
	depends on SYS_SUPPORTS_SCHED_SMT
	default n
	help
	  SMT scheduler support improves the CPU scheduler's decision making
	  when dealing with MIPS MT enabled cores at a cost of slightly
	  increased overhead in some places. If unsure say N here.

config SYS_SUPPORTS_SCHED_SMT
	bool

1896 1897 1898
config SYS_SUPPORTS_MULTITHREADING
	bool

R
Ralf Baechle 已提交
1899 1900 1901
config MIPS_MT_FPAFF
	bool "Dynamic FPU affinity for FP-intensive threads"
	default y
1902 1903 1904 1905
	depends on MIPS_MT_SMP || MIPS_MT_SMTC

config MIPS_VPE_LOADER
	bool "VPE loader support."
1906
	depends on SYS_SUPPORTS_MULTITHREADING && MODULES
1907 1908 1909 1910 1911 1912
	select CPU_MIPSR2_IRQ_VI
	select CPU_MIPSR2_IRQ_EI
	select MIPS_MT
	help
	  Includes a loader for loading an elf relocatable object
	  onto another VPE and running it.
R
Ralf Baechle 已提交
1913

1914 1915 1916 1917 1918
config MIPS_VPE_LOADER_CMP
	bool
	default "y"
	depends on MIPS_VPE_LOADER && MIPS_CMP

1919 1920 1921 1922 1923
config MIPS_VPE_LOADER_MT
	bool
	default "y"
	depends on MIPS_VPE_LOADER && !MIPS_CMP

1924 1925 1926
config MIPS_MT_SMTC_IM_BACKSTOP
	bool "Use per-TC register bits as backstop for inhibited IM bits"
	depends on MIPS_MT_SMTC
1927
	default n
1928 1929 1930 1931 1932 1933
	help
	  To support multiple TC microthreads acting as "CPUs" within
	  a VPE, VPE-wide interrupt mask bits must be specially manipulated
	  during interrupt handling. To support legacy drivers and interrupt
	  controller management code, SMTC has a "backstop" to track and
	  if necessary restore the interrupt mask. This has some performance
1934
	  impact on interrupt service overhead.
1935

1936 1937 1938 1939 1940 1941 1942 1943
config MIPS_MT_SMTC_IRQAFF
	bool "Support IRQ affinity API"
	depends on MIPS_MT_SMTC
	default n
	help
	  Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
	  for SMTC Linux kernel. Requires platform support, of which
	  an example can be found in the MIPS kernel i8259 and Malta
1944 1945
	  platform code.  Adds some overhead to interrupt dispatch, and
	  should be used only if you know what you are doing.
1946

1947 1948 1949 1950 1951 1952 1953 1954 1955 1956 1957
config MIPS_VPE_LOADER_TOM
	bool "Load VPE program into memory hidden from linux"
	depends on MIPS_VPE_LOADER
	default y
	help
	  The loader can use memory that is present but has been hidden from
	  Linux using the kernel command line option "mem=xxMB". It's up to
	  you to ensure the amount you put in the option and the space your
	  program requires is less or equal to the amount physically present.

config MIPS_VPE_APSP_API
1958 1959 1960
	bool "Enable support for AP/SP API (RTLX)"
	depends on MIPS_VPE_LOADER
	help
1961

1962 1963 1964 1965 1966
config MIPS_VPE_APSP_API_CMP
	bool
	default "y"
	depends on MIPS_VPE_APSP_API && MIPS_CMP

1967 1968 1969 1970 1971
config MIPS_VPE_APSP_API_MT
	bool
	default "y"
	depends on MIPS_VPE_APSP_API && !MIPS_CMP

1972
config MIPS_CMP
1973 1974
	bool "MIPS CMP support"
	depends on SYS_SUPPORTS_MIPS_CMP && MIPS_MT_SMP
1975
	select SYNC_R4K
1976 1977 1978
	select WEAK_ORDERING
	default n
	help
1979
	  Enable Coherency Manager processor (CMP) support.
1980

L
Linus Torvalds 已提交
1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995
config SB1_PASS_1_WORKAROUNDS
	bool
	depends on CPU_SB1_PASS_1
	default y

config SB1_PASS_2_WORKAROUNDS
	bool
	depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
	default y

config SB1_PASS_2_1_WORKAROUNDS
	bool
	depends on CPU_SB1 && CPU_SB1_PASS_2
	default y

1996

L
Linus Torvalds 已提交
1997
config 64BIT_PHYS_ADDR
1998
	bool
L
Linus Torvalds 已提交
1999

2000 2001 2002
config ARCH_PHYS_ADDR_T_64BIT
       def_bool 64BIT_PHYS_ADDR

2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014
config CPU_HAS_SMARTMIPS
	depends on SYS_SUPPORTS_SMARTMIPS
	bool "Support for the SmartMIPS ASE"
	help
	  SmartMIPS is a extension of the MIPS32 architecture aimed at
	  increased security at both hardware and software level for
	  smartcards.  Enabling this option will allow proper use of the
	  SmartMIPS instructions by Linux applications.  However a kernel with
	  this option will not work on a MIPS core without SmartMIPS core.  If
	  you don't know you probably don't have SmartMIPS and should say N
	  here.

2015 2016 2017 2018 2019 2020 2021
config CPU_MICROMIPS
	depends on SYS_SUPPORTS_MICROMIPS
	bool "Build kernel using microMIPS ISA"
	help
	  When this option is enabled the kernel will be built using the
	  microMIPS ISA

L
Linus Torvalds 已提交
2022
config CPU_HAS_WB
2023
	bool
2024

2025 2026 2027
config XKS01
	bool

2028 2029 2030
#
# Vectored interrupt mode is an R2 feature
#
2031
config CPU_MIPSR2_IRQ_VI
2032
	bool
2033

2034 2035 2036
#
# Extended interrupt mode is an R2 feature
#
2037
config CPU_MIPSR2_IRQ_EI
2038
	bool
2039

L
Linus Torvalds 已提交
2040 2041 2042 2043 2044
config CPU_HAS_SYNC
	bool
	depends on !CPU_R3000
	default y

2045 2046 2047 2048 2049 2050 2051 2052 2053 2054 2055 2056 2057
#
# CPU non-features
#
config CPU_DADDI_WORKAROUNDS
	bool

config CPU_R4000_WORKAROUNDS
	bool
	select CPU_R4400_WORKAROUNDS

config CPU_R4400_WORKAROUNDS
	bool

L
Linus Torvalds 已提交
2058 2059 2060 2061 2062 2063 2064 2065 2066
#
# - Highmem only makes sense for the 32-bit kernel.
# - The current highmem code will only work properly on physically indexed
#   caches such as R3000, SB1, R7000 or those that look like they're virtually
#   indexed such as R4000/R4400 SC and MC versions or R10000.  So for the
#   moment we protect the user and offer the highmem option only on machines
#   where it's known to be safe.  This will not offer highmem on a few systems
#   such as MIPS32 and MIPS64 CPUs which may have virtual and physically
#   indexed CPUs but we're playing safe.
R
Ralf Baechle 已提交
2067 2068 2069
# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
#   know they might have memory configurations that could make use of highmem
#   support.
L
Linus Torvalds 已提交
2070 2071 2072
#
config HIGHMEM
	bool "High Memory Support"
R
Ralf Baechle 已提交
2073 2074 2075 2076 2077 2078 2079
	depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM

config CPU_SUPPORTS_HIGHMEM
	bool

config SYS_SUPPORTS_HIGHMEM
	bool
L
Linus Torvalds 已提交
2080

2081 2082 2083
config SYS_SUPPORTS_SMARTMIPS
	bool

2084 2085 2086
config SYS_SUPPORTS_MICROMIPS
	bool

2087 2088
config ARCH_FLATMEM_ENABLE
	def_bool y
2089
	depends on !NUMA && !CPU_LOONGSON2
2090

2091 2092 2093 2094
config ARCH_DISCONTIGMEM_ENABLE
	bool
	default y if SGI_IP27
	help
2095
	  Say Y to support efficient handling of discontiguous physical memory,
2096 2097 2098 2099
	  for architectures which are either NUMA (Non-Uniform Memory Access)
	  or have huge holes in the physical address space for other reasons.
	  See <file:Documentation/vm/numa> for more.

2100 2101
config ARCH_SPARSEMEM_ENABLE
	bool
A
Atsushi Nemoto 已提交
2102
	select SPARSEMEM_STATIC
2103

2104 2105 2106 2107 2108 2109 2110 2111 2112 2113 2114 2115 2116
config NUMA
	bool "NUMA Support"
	depends on SYS_SUPPORTS_NUMA
	help
	  Say Y to compile the kernel to support NUMA (Non-Uniform Memory
	  Access).  This option improves performance on systems with more
	  than two nodes; on two node systems it is generally better to
	  leave it disabled; on single node systems disable this option
	  disabled.

config SYS_SUPPORTS_NUMA
	bool

Y
Yasunori Goto 已提交
2117 2118 2119 2120 2121
config NODES_SHIFT
	int
	default "6"
	depends on NEED_MULTIPLE_NODES

2122 2123
config HW_PERF_EVENTS
	bool "Enable hardware performance counter support for perf events"
2124
	depends on PERF_EVENTS && !MIPS_MT_SMTC && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP)
2125 2126 2127 2128 2129
	default y
	help
	  Enable hardware performance counter support for perf events. If
	  disabled, perf events will use software events only.

2130 2131
source "mm/Kconfig"

L
Linus Torvalds 已提交
2132 2133
config SMP
	bool "Multi-Processing support"
2134 2135
	depends on SYS_SUPPORTS_SMP
	help
L
Linus Torvalds 已提交
2136 2137 2138 2139 2140 2141 2142 2143 2144 2145 2146 2147 2148
	  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
2149 2150
	  See also the SMP-HOWTO available at
	  <http://www.tldp.org/docs.html#howto>.
L
Linus Torvalds 已提交
2151 2152 2153

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

2154 2155 2156
config SMP_UP
	bool

2157 2158 2159
config SYS_SUPPORTS_MIPS_CMP
	bool

2160 2161 2162
config SYS_SUPPORTS_SMP
	bool

2163 2164 2165 2166 2167 2168 2169 2170 2171 2172 2173 2174 2175 2176 2177
config NR_CPUS_DEFAULT_4
	bool

config NR_CPUS_DEFAULT_8
	bool

config NR_CPUS_DEFAULT_16
	bool

config NR_CPUS_DEFAULT_32
	bool

config NR_CPUS_DEFAULT_64
	bool

L
Linus Torvalds 已提交
2178 2179
config NR_CPUS
	int "Maximum number of CPUs (2-64)"
2180
	range 2 64
L
Linus Torvalds 已提交
2181
	depends on SMP
2182 2183 2184 2185 2186
	default "4" if NR_CPUS_DEFAULT_4
	default "8" if NR_CPUS_DEFAULT_8
	default "16" if NR_CPUS_DEFAULT_16
	default "32" if NR_CPUS_DEFAULT_32
	default "64" if NR_CPUS_DEFAULT_64
L
Linus Torvalds 已提交
2187 2188 2189 2190
	help
	  This allows you to specify the maximum number of CPUs which this
	  kernel will support.  The maximum supported value is 32 for 32-bit
	  kernel and 64 for 64-bit kernels; the minimum value which makes
2191 2192
	  sense is 1 for Qemu (useful only for kernel debugging purposes)
	  and 2 for all others.
L
Linus Torvalds 已提交
2193 2194

	  This is purely to save memory - each supported CPU adds
2195 2196 2197
	  approximately eight kilobytes to the kernel image.  For best
	  performance should round up your number of processors to the next
	  power of two.
L
Linus Torvalds 已提交
2198

2199 2200 2201
config MIPS_PERF_SHARED_TC_COUNTERS
	bool

2202 2203 2204 2205 2206 2207 2208 2209 2210 2211 2212
#
# Timer Interrupt Frequency Configuration
#

choice
	prompt "Timer frequency"
	default HZ_250
	help
	 Allows the configuration of the timer frequency.

	config HZ_48
2213
		bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2214 2215 2216 2217 2218 2219 2220 2221 2222 2223 2224 2225 2226 2227 2228 2229 2230 2231 2232 2233 2234 2235 2236 2237 2238 2239 2240 2241 2242 2243 2244 2245 2246 2247 2248 2249 2250 2251 2252 2253 2254 2255 2256 2257 2258 2259 2260 2261 2262 2263 2264 2265 2266 2267 2268 2269 2270 2271 2272

	config HZ_100
		bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ

	config HZ_128
		bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ

	config HZ_250
		bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ

	config HZ_256
		bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ

	config HZ_1000
		bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ

	config HZ_1024
		bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ

endchoice

config SYS_SUPPORTS_48HZ
	bool

config SYS_SUPPORTS_100HZ
	bool

config SYS_SUPPORTS_128HZ
	bool

config SYS_SUPPORTS_250HZ
	bool

config SYS_SUPPORTS_256HZ
	bool

config SYS_SUPPORTS_1000HZ
	bool

config SYS_SUPPORTS_1024HZ
	bool

config SYS_SUPPORTS_ARBIT_HZ
	bool
	default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
		     !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
		     !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
		     !SYS_SUPPORTS_1024HZ

config HZ
	int
	default 48 if HZ_48
	default 100 if HZ_100
	default 128 if HZ_128
	default 250 if HZ_250
	default 256 if HZ_256
	default 1000 if HZ_1000
	default 1024 if HZ_1024

R
Ralf Baechle 已提交
2273
source "kernel/Kconfig.preempt"
L
Linus Torvalds 已提交
2274

2275
config KEXEC
2276
	bool "Kexec system call"
2277 2278 2279
	help
	  kexec is a system call that implements the ability to shutdown your
	  current kernel, and to start another kernel.  It is like a reboot
2280
	  but it is independent of the system firmware.   And like a reboot
2281 2282
	  you can start any kernel with it, not just Linux.

M
Matt LaPlante 已提交
2283
	  The name comes from the similarity to the exec system call.
2284 2285 2286

	  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
2287 2288 2289
	  initially work for you.  As of this writing the exact hardware
	  interface is strongly in flux, so no good recommendation can be
	  made.
2290

R
Ralf Baechle 已提交
2291 2292 2293 2294 2295 2296 2297 2298 2299 2300 2301 2302 2303 2304 2305 2306 2307 2308 2309 2310 2311 2312 2313
config CRASH_DUMP
	  bool "Kernel crash dumps"
	  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 or firmware using
	  PHYSICAL_START.

config PHYSICAL_START
	  hex "Physical address where the kernel is loaded"
	  default "0xffffffff84000000" if 64BIT
	  default "0x84000000" if 32BIT
	  depends on CRASH_DUMP
	  help
	  This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
	  If you plan to use kernel for capturing the crash dump change
	  this value to start of the reserved region (the "X" value as
	  specified in the "crashkernel=YM@XM" command line boot parameter
	  passed to the panic-ed kernel).

2314 2315
config SECCOMP
	bool "Enable seccomp to safely compute untrusted bytecode"
2316
	depends on PROC_FS
2317 2318 2319 2320 2321 2322 2323 2324 2325 2326 2327 2328 2329 2330
	default y
	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 /proc/<pid>/seccomp, it cannot be disabled
	  and the task is only allowed to execute a few safe syscalls
	  defined by each seccomp mode.

	  If unsure, say Y. Only embedded should say N here.

2331 2332 2333 2334 2335 2336 2337 2338 2339 2340 2341 2342 2343
config CC_STACKPROTECTOR
	bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
	help
	  This option turns on the -fstack-protector GCC feature. This
	  feature puts, at the beginning of functions, a canary value on
	  the stack just before the return address, and validates
	  the value just before actually returning.  Stack based buffer
	  overflows (that need to overwrite this return address) now also
	  overwrite the canary, which gets detected and the attack is then
	  neutralized via a kernel panic.

	  This feature requires gcc version 4.2 or above.

2344 2345 2346 2347 2348 2349 2350 2351 2352 2353 2354 2355 2356 2357 2358 2359 2360
config MIPS_O32_FP64_SUPPORT
	bool "Support for O32 binaries using 64-bit FP"
	depends on 32BIT || MIPS32_O32
	default y
	help
	  When this is enabled, the kernel will support use of 64-bit floating
	  point registers with binaries using the O32 ABI along with the
	  EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
	  32-bit MIPS systems this support is at the cost of increasing the
	  size and complexity of the compiled FPU emulator. Thus if you are
	  running a MIPS32 system and know that none of your userland binaries
	  will require 64-bit floating point, you may wish to reduce the size
	  of your kernel & potentially improve FP emulation performance by
	  saying N here.

	  If unsure, say Y.

2361
config USE_OF
2362
	bool
2363
	select OF
2364
	select OF_EARLY_FLATTREE
2365
	select IRQ_DOMAIN
2366

2367 2368
endmenu

2369 2370 2371 2372 2373 2374 2375 2376
config LOCKDEP_SUPPORT
	bool
	default y

config STACKTRACE_SUPPORT
	bool
	default y

2377 2378
source "init/Kconfig"

2379 2380
source "kernel/Kconfig.freezer"

L
Linus Torvalds 已提交
2381 2382
menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"

2383 2384
config HW_HAS_EISA
	bool
L
Linus Torvalds 已提交
2385 2386 2387 2388 2389 2390
config HW_HAS_PCI
	bool

config PCI
	bool "Support for PCI controller"
	depends on HW_HAS_PCI
2391
	select PCI_DOMAINS
2392
	select NO_GENERIC_PCI_IOPORT_MAP
L
Linus Torvalds 已提交
2393 2394 2395 2396 2397 2398 2399 2400 2401 2402 2403
	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. Other bus systems are ISA, EISA, or VESA. If you have PCI,
	  say Y, otherwise N.

config PCI_DOMAINS
	bool

source "drivers/pci/Kconfig"

2404 2405
source "drivers/pci/pcie/Kconfig"

L
Linus Torvalds 已提交
2406 2407 2408 2409 2410 2411 2412 2413 2414 2415
#
# ISA support is now enabled via select.  Too many systems still have the one
# or other ISA chip on the board that users don't know about so don't expect
# users to choose the right thing ...
#
config ISA
	bool

config EISA
	bool "EISA support"
2416
	depends on HW_HAS_EISA
L
Linus Torvalds 已提交
2417
	select ISA
2418
	select GENERIC_ISA_DMA
L
Linus Torvalds 已提交
2419 2420 2421 2422 2423 2424 2425 2426 2427 2428 2429 2430 2431 2432 2433 2434 2435 2436 2437
	---help---
	  The Extended Industry Standard Architecture (EISA) bus was
	  developed as an open alternative to the IBM MicroChannel bus.

	  The EISA bus provided some of the features of the IBM MicroChannel
	  bus while maintaining backward compatibility with cards made for
	  the older ISA bus.  The EISA bus saw limited use between 1988 and
	  1995 when it was made obsolete by the PCI bus.

	  Say Y here if you are building a kernel for an EISA-based machine.

	  Otherwise, say N.

source "drivers/eisa/Kconfig"

config TC
	bool "TURBOchannel support"
	depends on MACH_DECSTATION
	help
2438 2439 2440 2441 2442 2443 2444 2445
	  TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
	  processors.  TURBOchannel programming specifications are available
	  at:
	  <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
	  and:
	  <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
	  Linux driver support status is documented at:
	  <http://www.linux-mips.org/wiki/DECstation>
L
Linus Torvalds 已提交
2446 2447 2448 2449 2450

config MMU
	bool
	default y

2451 2452
config I8253
	bool
2453
	select CLKSRC_I8253
2454
	select CLKEVT_I8253
W
Wu Zhangjin 已提交
2455
	select MIPS_EXTERNAL_TIMER
2456

2457 2458 2459
config ZONE_DMA
	bool

2460 2461 2462
config ZONE_DMA32
	bool

L
Linus Torvalds 已提交
2463 2464 2465 2466
source "drivers/pcmcia/Kconfig"

source "drivers/pci/hotplug/Kconfig"

2467 2468 2469 2470 2471 2472 2473 2474 2475 2476
config RAPIDIO
	bool "RapidIO support"
	depends on PCI
	default n
	help
	  If you say Y here, the kernel will include drivers and
	  infrastructure code to support RapidIO interconnect devices.

source "drivers/rapidio/Kconfig"

L
Linus Torvalds 已提交
2477 2478 2479 2480 2481 2482 2483 2484 2485 2486 2487
endmenu

menu "Executable file formats"

source "fs/Kconfig.binfmt"

config TRAD_SIGNALS
	bool

config MIPS32_COMPAT
	bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2488
	depends on 64BIT
L
Linus Torvalds 已提交
2489 2490 2491 2492 2493 2494 2495 2496
	help
	  Select this option if you want Linux/MIPS 32-bit binary
	  compatibility. Since all software available for Linux/MIPS is
	  currently 32-bit you should say Y here.

config COMPAT
	bool
	depends on MIPS32_COMPAT
2497
	select ARCH_WANT_OLD_COMPAT_IPC
L
Linus Torvalds 已提交
2498 2499
	default y

2500 2501 2502 2503 2504
config SYSVIPC_COMPAT
	bool
	depends on COMPAT && SYSVIPC
	default y

L
Linus Torvalds 已提交
2505 2506 2507 2508 2509 2510 2511 2512 2513 2514 2515 2516 2517 2518 2519 2520 2521 2522 2523 2524 2525 2526 2527 2528 2529
config MIPS32_O32
	bool "Kernel support for o32 binaries"
	depends on MIPS32_COMPAT
	help
	  Select this option if you want to run o32 binaries.  These are pure
	  32-bit binaries as used by the 32-bit Linux/MIPS port.  Most of
	  existing binaries are in this format.

	  If unsure, say Y.

config MIPS32_N32
	bool "Kernel support for n32 binaries"
	depends on MIPS32_COMPAT
	help
	  Select this option if you want to run n32 binaries.  These are
	  64-bit binaries using 32-bit quantities for addressing and certain
	  data that would normally be 64-bit.  They are used in special
	  cases.

	  If unsure, say N.

config BINFMT_ELF32
	bool
	default y if MIPS32_O32 || MIPS32_N32

2530 2531 2532 2533
endmenu

menu "Power management options"

W
Wu Zhangjin 已提交
2534 2535
config ARCH_HIBERNATION_POSSIBLE
	def_bool y
2536
	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
W
Wu Zhangjin 已提交
2537

J
Johannes Berg 已提交
2538 2539
config ARCH_SUSPEND_POSSIBLE
	def_bool y
2540
	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
J
Johannes Berg 已提交
2541

2542
source "kernel/power/Kconfig"
R
Rodolfo Giometti 已提交
2543

L
Linus Torvalds 已提交
2544 2545
endmenu

2546 2547 2548 2549 2550 2551 2552 2553
config MIPS_EXTERNAL_TIMER
	bool

if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
menu "CPU Power Management"
source "drivers/cpufreq/Kconfig"
endmenu
endif
W
Wu Zhangjin 已提交
2554

2555 2556
source "net/Kconfig"

L
Linus Torvalds 已提交
2557 2558
source "drivers/Kconfig"

2559 2560
source "drivers/firmware/Kconfig"

L
Linus Torvalds 已提交
2561 2562 2563 2564 2565 2566 2567 2568 2569
source "fs/Kconfig"

source "arch/mips/Kconfig.debug"

source "security/Kconfig"

source "crypto/Kconfig"

source "lib/Kconfig"
2570 2571

source "arch/mips/kvm/Kconfig"