MIPS: kernel: cpu-probe: Add support for probing interAptiv cores
[linux-2.6-block.git] / arch / mips / Kconfig
CommitLineData
1da177e4
LT
1config MIPS
2 bool
3 default y
a862a426 4 select ARCH_MIGHT_HAVE_PC_PARPORT
c3fc5cd5 5 select HAVE_CONTEXT_TRACKING
f8ac0425 6 select HAVE_GENERIC_DMA_COHERENT
ec7748b5 7 select HAVE_IDE
42d4b839 8 select HAVE_OPROFILE
7f788d2d
DCZ
9 select HAVE_PERF_EVENTS
10 select PERF_USE_VMALLOC
88547001 11 select HAVE_ARCH_KGDB
c0ff3c53 12 select HAVE_ARCH_TRACEHOOK
7563bbf8 13 select ARCH_HAVE_CUSTOM_GPIO_H
d2bb0762 14 select HAVE_FUNCTION_TRACER
69a7d1b3 15 select HAVE_FUNCTION_TRACE_MCOUNT_TEST
538f1952
WZ
16 select HAVE_DYNAMIC_FTRACE
17 select HAVE_FTRACE_MCOUNT_RECORD
64575f91 18 select HAVE_C_RECORDMCOUNT
29c5d346 19 select HAVE_FUNCTION_GRAPH_TRACER
c1bf207d
DD
20 select HAVE_KPROBES
21 select HAVE_KRETPROBES
b69ec42b 22 select HAVE_DEBUG_KMEMLEAK
1d7bf993 23 select HAVE_SYSCALL_TRACEPOINTS
e26d196c 24 select ARCH_BINFMT_ELF_RANDOMIZE_PIE
383c97b4 25 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT
21a41faa 26 select RTC_LIB if !MACH_LOONGSON
2b78920d 27 select GENERIC_ATOMIC64 if !64BIT
7463449b 28 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
48e1fd5a
DD
29 select HAVE_DMA_ATTRS
30 select HAVE_DMA_API_DEBUG
3bd27e32 31 select GENERIC_IRQ_PROBE
f8396c17 32 select GENERIC_IRQ_SHOW
78857614 33 select GENERIC_PCI_IOMAP
94bb0c1a 34 select HAVE_ARCH_JUMP_LABEL
c1d7e01d 35 select ARCH_WANT_IPC_PARSE_VERSION
0f462e3c 36 select IRQ_FORCED_THREADING
9d15ffc8
TH
37 select HAVE_MEMBLOCK
38 select HAVE_MEMBLOCK_NODE_MAP
39 select ARCH_DISCARD_MEMBLOCK
360014a3 40 select GENERIC_SMP_IDLE_THREAD
4b054495 41 select BUILDTIME_EXTABLE_SORT
cde1794b
AMG
42 select GENERIC_CLOCKEVENTS
43 select GENERIC_CMOS_UPDATE
786d35d4 44 select HAVE_MOD_ARCH_SPECIFIC
4febd95a 45 select VIRT_TO_BUS
2f12fb20
JK
46 select MODULES_USE_ELF_REL if MODULES
47 select MODULES_USE_ELF_RELA if MODULES && 64BIT
50150d2b 48 select CLONE_BACKWARDS
d1a1dc0b 49 select HAVE_DEBUG_STACKOVERFLOW
1da177e4 50
1da177e4
LT
51menu "Machine selection"
52
5e83d430
RB
53choice
54 prompt "System type"
55 default SGI_IP22
1da177e4 56
42a4f17d 57config MIPS_ALCHEMY
c3543e25 58 bool "Alchemy processor based machines"
42a4f17d 59 select 64BIT_PHYS_ADDR
f772cdb2 60 select CEVT_R4K
d7ea335c 61 select CSRC_R4K
42a4f17d
ML
62 select IRQ_CPU
63 select SYS_HAS_CPU_MIPS32_R1
64 select SYS_SUPPORTS_32BIT_KERNEL
65 select SYS_SUPPORTS_APM_EMULATION
efb12436 66 select ARCH_REQUIRE_GPIOLIB
1b93b3c3 67 select SYS_SUPPORTS_ZBOOT
37663860
ML
68 select USB_ARCH_HAS_OHCI
69 select USB_ARCH_HAS_EHCI
1da177e4 70
7ca5dc14
FF
71config AR7
72 bool "Texas Instruments AR7"
73 select BOOT_ELF32
74 select DMA_NONCOHERENT
75 select CEVT_R4K
76 select CSRC_R4K
77 select IRQ_CPU
78 select NO_EXCEPT_FILL
79 select SWAP_IO_SPACE
80 select SYS_HAS_CPU_MIPS32_R1
81 select SYS_HAS_EARLY_PRINTK
82 select SYS_SUPPORTS_32BIT_KERNEL
83 select SYS_SUPPORTS_LITTLE_ENDIAN
1b93b3c3 84 select SYS_SUPPORTS_ZBOOT_UART16550
5f3c9098 85 select ARCH_REQUIRE_GPIOLIB
7ca5dc14 86 select VLYNQ
8551fb64 87 select HAVE_CLK
7ca5dc14
FF
88 help
89 Support for the Texas Instruments AR7 System-on-a-Chip
90 family: TNETD7100, 7200 and 7300.
91
d4a67d9d
GJ
92config ATH79
93 bool "Atheros AR71XX/AR724X/AR913X based boards"
6eae43c5 94 select ARCH_REQUIRE_GPIOLIB
d4a67d9d
GJ
95 select BOOT_RAW
96 select CEVT_R4K
97 select CSRC_R4K
98 select DMA_NONCOHERENT
94638067 99 select HAVE_CLK
2c4f1ac5 100 select CLKDEV_LOOKUP
d4a67d9d 101 select IRQ_CPU
0aabf1a4 102 select MIPS_MACHINE
d4a67d9d
GJ
103 select SYS_HAS_CPU_MIPS32_R2
104 select SYS_HAS_EARLY_PRINTK
105 select SYS_SUPPORTS_32BIT_KERNEL
106 select SYS_SUPPORTS_BIG_ENDIAN
107 help
108 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
109
1c0c13eb 110config BCM47XX
c619366e 111 bool "Broadcom BCM47XX based boards"
2da4c74d 112 select ARCH_WANT_OPTIONAL_GPIOLIB
fe08f8c2 113 select BOOT_RAW
42f77542 114 select CEVT_R4K
940f6b48 115 select CSRC_R4K
1c0c13eb
AJ
116 select DMA_NONCOHERENT
117 select HW_HAS_PCI
118 select IRQ_CPU
314878d2 119 select SYS_HAS_CPU_MIPS32_R1
dd54dedd 120 select NO_EXCEPT_FILL
1c0c13eb
AJ
121 select SYS_SUPPORTS_32BIT_KERNEL
122 select SYS_SUPPORTS_LITTLE_ENDIAN
e1ccbb65
HM
123 select SYS_HAS_EARLY_PRINTK
124 select EARLY_PRINTK_8250 if EARLY_PRINTK
1c0c13eb
AJ
125 help
126 Support for BCM47XX based boards
127
e7300d04
MB
128config BCM63XX
129 bool "Broadcom BCM63XX based boards"
ae8de61c 130 select BOOT_RAW
e7300d04
MB
131 select CEVT_R4K
132 select CSRC_R4K
133 select DMA_NONCOHERENT
134 select IRQ_CPU
e7300d04
MB
135 select SYS_SUPPORTS_32BIT_KERNEL
136 select SYS_SUPPORTS_BIG_ENDIAN
137 select SYS_HAS_EARLY_PRINTK
138 select SWAP_IO_SPACE
139 select ARCH_REQUIRE_GPIOLIB
3e82eeeb 140 select HAVE_CLK
e7300d04
MB
141 help
142 Support for BCM63XX based boards
143
1da177e4 144config MIPS_COBALT
3fa986fa 145 bool "Cobalt Server"
42f77542 146 select CEVT_R4K
940f6b48 147 select CSRC_R4K
1097c6ac 148 select CEVT_GT641XX
1da177e4 149 select DMA_NONCOHERENT
8a8594a7 150 select EARLY_PRINTK_8250 if EARLY_PRINTK
1da177e4 151 select HW_HAS_PCI
d865bea4 152 select I8253
1da177e4
LT
153 select I8259
154 select IRQ_CPU
d5ab1a69 155 select IRQ_GT641XX
252161ec 156 select PCI_GT64XXX_PCI0
e25bfc92 157 select PCI
7cf8053b 158 select SYS_HAS_CPU_NEVADA
0a22e0d4 159 select SYS_HAS_EARLY_PRINTK
ed5ba2fb 160 select SYS_SUPPORTS_32BIT_KERNEL
0e8774b6 161 select SYS_SUPPORTS_64BIT_KERNEL
5e83d430 162 select SYS_SUPPORTS_LITTLE_ENDIAN
1da177e4
LT
163
164config MACH_DECSTATION
3fa986fa 165 bool "DECstations"
1da177e4 166 select BOOT_ELF32
6457d9fc 167 select CEVT_DS1287
42f77542 168 select CEVT_R4K
4247417d 169 select CSRC_IOASIC
940f6b48 170 select CSRC_R4K
20d60d99
MR
171 select CPU_DADDI_WORKAROUNDS if 64BIT
172 select CPU_R4000_WORKAROUNDS if 64BIT
173 select CPU_R4400_WORKAROUNDS if 64BIT
1da177e4 174 select DMA_NONCOHERENT
d388d685 175 select NO_IOPORT
1da177e4 176 select IRQ_CPU
7cf8053b
RB
177 select SYS_HAS_CPU_R3000
178 select SYS_HAS_CPU_R4X00
ed5ba2fb 179 select SYS_SUPPORTS_32BIT_KERNEL
7d60717e 180 select SYS_SUPPORTS_64BIT_KERNEL
5e83d430 181 select SYS_SUPPORTS_LITTLE_ENDIAN
1723b4a3
AN
182 select SYS_SUPPORTS_128HZ
183 select SYS_SUPPORTS_256HZ
184 select SYS_SUPPORTS_1024HZ
5e83d430 185 help
1da177e4
LT
186 This enables support for DEC's MIPS based workstations. For details
187 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
188 DECstation porting pages on <http://decstation.unix-ag.org/>.
189
190 If you have one of the following DECstation Models you definitely
191 want to choose R4xx0 for the CPU Type:
192
9308816c
RB
193 DECstation 5000/50
194 DECstation 5000/150
195 DECstation 5000/260
196 DECsystem 5900/260
1da177e4
LT
197
198 otherwise choose R3000.
199
5e83d430 200config MACH_JAZZ
3fa986fa 201 bool "Jazz family of machines"
0e2794b0
RB
202 select FW_ARC
203 select FW_ARC32
5e83d430 204 select ARCH_MAY_HAVE_PC_FDC
42f77542 205 select CEVT_R4K
940f6b48 206 select CSRC_R4K
e2defae5 207 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
5e83d430 208 select GENERIC_ISA_DMA
8a118c38 209 select HAVE_PCSPKR_PLATFORM
ea202c63 210 select IRQ_CPU
d865bea4 211 select I8253
5e83d430
RB
212 select I8259
213 select ISA
7cf8053b 214 select SYS_HAS_CPU_R4X00
5e83d430 215 select SYS_SUPPORTS_32BIT_KERNEL
7d60717e 216 select SYS_SUPPORTS_64BIT_KERNEL
1723b4a3 217 select SYS_SUPPORTS_100HZ
1da177e4 218 help
5e83d430
RB
219 This a family of machines based on the MIPS R4030 chipset which was
220 used by several vendors to build RISC/os and Windows NT workstations.
692105b8 221 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
5e83d430
RB
222 Olivetti M700-10 workstations.
223
5ebabe59
LPC
224config MACH_JZ4740
225 bool "Ingenic JZ4740 based machines"
226 select SYS_HAS_CPU_MIPS32_R1
227 select SYS_SUPPORTS_32BIT_KERNEL
228 select SYS_SUPPORTS_LITTLE_ENDIAN
f9c9affc 229 select SYS_SUPPORTS_ZBOOT_UART16550
5ebabe59
LPC
230 select DMA_NONCOHERENT
231 select IRQ_CPU
5ebabe59
LPC
232 select ARCH_REQUIRE_GPIOLIB
233 select SYS_HAS_EARLY_PRINTK
234 select HAVE_PWM
ab5330eb 235 select HAVE_CLK
83bc7692 236 select GENERIC_IRQ_CHIP
5ebabe59 237
171bb2f1
JC
238config LANTIQ
239 bool "Lantiq based platforms"
240 select DMA_NONCOHERENT
241 select IRQ_CPU
242 select CEVT_R4K
243 select CSRC_R4K
244 select SYS_HAS_CPU_MIPS32_R1
245 select SYS_HAS_CPU_MIPS32_R2
246 select SYS_SUPPORTS_BIG_ENDIAN
247 select SYS_SUPPORTS_32BIT_KERNEL
248 select SYS_SUPPORTS_MULTITHREADING
249 select SYS_HAS_EARLY_PRINTK
250 select ARCH_REQUIRE_GPIOLIB
251 select SWAP_IO_SPACE
252 select BOOT_RAW
287e3f3f
JC
253 select HAVE_MACH_CLKDEV
254 select CLKDEV_LOOKUP
a0392222 255 select USE_OF
3f8c50c9
JC
256 select PINCTRL
257 select PINCTRL_LANTIQ
171bb2f1 258
1f21d2bd
BM
259config LASAT
260 bool "LASAT Networks platforms"
42f77542 261 select CEVT_R4K
940f6b48 262 select CSRC_R4K
1f21d2bd
BM
263 select DMA_NONCOHERENT
264 select SYS_HAS_EARLY_PRINTK
265 select HW_HAS_PCI
a5ccfe5c 266 select IRQ_CPU
1f21d2bd
BM
267 select PCI_GT64XXX_PCI0
268 select MIPS_NILE4
269 select R5000_CPU_SCACHE
270 select SYS_HAS_CPU_R5000
271 select SYS_SUPPORTS_32BIT_KERNEL
272 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
273 select SYS_SUPPORTS_LITTLE_ENDIAN
1f21d2bd 274
85749d24
WZ
275config MACH_LOONGSON
276 bool "Loongson family of machines"
c7e8c668 277 select SYS_SUPPORTS_ZBOOT
ade299d8 278 help
85749d24
WZ
279 This enables the support of Loongson family of machines.
280
281 Loongson is a family of general-purpose MIPS-compatible CPUs.
282 developed at Institute of Computing Technology (ICT),
283 Chinese Academy of Sciences (CAS) in the People's Republic
284 of China. The chief architect is Professor Weiwu Hu.
ade299d8 285
ca585cf9
KC
286config MACH_LOONGSON1
287 bool "Loongson 1 family of machines"
288 select SYS_SUPPORTS_ZBOOT
289 help
290 This enables support for the Loongson 1 based machines.
291
292 Loongson 1 is a family of 32-bit MIPS-compatible SoCs developed by
293 the ICT (Institute of Computing Technology) and the Chinese Academy
294 of Sciences.
295
1da177e4 296config MIPS_MALTA
3fa986fa 297 bool "MIPS Malta board"
61ed242d 298 select ARCH_MAY_HAVE_PC_FDC
1da177e4 299 select BOOT_ELF32
fa71c960 300 select BOOT_RAW
42f77542 301 select CEVT_R4K
940f6b48 302 select CSRC_R4K
778eeb1b 303 select CSRC_GIC
1da177e4
LT
304 select DMA_NONCOHERENT
305 select GENERIC_ISA_DMA
8a118c38 306 select HAVE_PCSPKR_PLATFORM
aa414dff 307 select IRQ_CPU
39b8d525 308 select IRQ_GIC
1da177e4 309 select HW_HAS_PCI
d865bea4 310 select I8253
1da177e4 311 select I8259
5e83d430 312 select MIPS_BONITO64
9318c51a 313 select MIPS_CPU_SCACHE
252161ec 314 select PCI_GT64XXX_PCI0
5e83d430 315 select MIPS_MSC
1da177e4 316 select SWAP_IO_SPACE
7cf8053b
RB
317 select SYS_HAS_CPU_MIPS32_R1
318 select SYS_HAS_CPU_MIPS32_R2
319 select SYS_HAS_CPU_MIPS64_R1
5d9fbed1 320 select SYS_HAS_CPU_MIPS64_R2
7cf8053b
RB
321 select SYS_HAS_CPU_NEVADA
322 select SYS_HAS_CPU_RM7000
36a88530 323 select SYS_HAS_EARLY_PRINTK
ed5ba2fb
YY
324 select SYS_SUPPORTS_32BIT_KERNEL
325 select SYS_SUPPORTS_64BIT_KERNEL
5e83d430
RB
326 select SYS_SUPPORTS_BIG_ENDIAN
327 select SYS_SUPPORTS_LITTLE_ENDIAN
0365070f 328 select SYS_SUPPORTS_MIPS_CMP
f41ae0b2 329 select SYS_SUPPORTS_MULTITHREADING
9693a853 330 select SYS_SUPPORTS_SMARTMIPS
1b93b3c3 331 select SYS_SUPPORTS_ZBOOT
1da177e4 332 help
f638d197 333 This enables support for the MIPS Technologies Malta evaluation
1da177e4
LT
334 board.
335
ec47b274
SH
336config MIPS_SEAD3
337 bool "MIPS SEAD3 board"
338 select BOOT_ELF32
339 select BOOT_RAW
340 select CEVT_R4K
341 select CSRC_R4K
dfa762e1 342 select CSRC_GIC
ec47b274
SH
343 select CPU_MIPSR2_IRQ_VI
344 select CPU_MIPSR2_IRQ_EI
345 select DMA_NONCOHERENT
346 select IRQ_CPU
347 select IRQ_GIC
ec47b274
SH
348 select MIPS_MSC
349 select SYS_HAS_CPU_MIPS32_R1
350 select SYS_HAS_CPU_MIPS32_R2
351 select SYS_HAS_CPU_MIPS64_R1
352 select SYS_HAS_EARLY_PRINTK
353 select SYS_SUPPORTS_32BIT_KERNEL
354 select SYS_SUPPORTS_64BIT_KERNEL
355 select SYS_SUPPORTS_BIG_ENDIAN
356 select SYS_SUPPORTS_LITTLE_ENDIAN
357 select SYS_SUPPORTS_SMARTMIPS
a6a4834c 358 select SYS_SUPPORTS_MICROMIPS
ec47b274
SH
359 select USB_ARCH_HAS_EHCI
360 select USB_EHCI_BIG_ENDIAN_DESC
361 select USB_EHCI_BIG_ENDIAN_MMIO
9b731009 362 select USE_OF
ec47b274
SH
363 help
364 This enables support for the MIPS Technologies SEAD3 evaluation
365 board.
366
a83860c2
RB
367config NEC_MARKEINS
368 bool "NEC EMMA2RH Mark-eins board"
369 select SOC_EMMA2RH
370 select HW_HAS_PCI
371 help
372 This enables support for the NEC Electronics Mark-eins boards.
ade299d8 373
5e83d430 374config MACH_VR41XX
74142d65 375 bool "NEC VR4100 series based machines"
42f77542 376 select CEVT_R4K
940f6b48 377 select CSRC_R4K
7cf8053b 378 select SYS_HAS_CPU_VR41XX
27fdd325 379 select ARCH_REQUIRE_GPIOLIB
5e83d430 380
edb6310a
DL
381config NXP_STB220
382 bool "NXP STB220 board"
383 select SOC_PNX833X
384 help
385 Support for NXP Semiconductors STB220 Development Board.
386
387config NXP_STB225
388 bool "NXP 225 board"
389 select SOC_PNX833X
390 select SOC_PNX8335
391 help
392 Support for NXP Semiconductors STB225 Development Board.
393
9267a30d
MSJ
394config PMC_MSP
395 bool "PMC-Sierra MSP chipsets"
39d30c13
A
396 select CEVT_R4K
397 select CSRC_R4K
9267a30d
MSJ
398 select DMA_NONCOHERENT
399 select SWAP_IO_SPACE
400 select NO_EXCEPT_FILL
401 select BOOT_RAW
402 select SYS_HAS_CPU_MIPS32_R1
403 select SYS_HAS_CPU_MIPS32_R2
404 select SYS_SUPPORTS_32BIT_KERNEL
405 select SYS_SUPPORTS_BIG_ENDIAN
9267a30d
MSJ
406 select IRQ_CPU
407 select SERIAL_8250
408 select SERIAL_8250_CONSOLE
9296d94d
FF
409 select USB_EHCI_BIG_ENDIAN_MMIO
410 select USB_EHCI_BIG_ENDIAN_DESC
9267a30d
MSJ
411 help
412 This adds support for the PMC-Sierra family of Multi-Service
413 Processor System-On-A-Chips. These parts include a number
414 of integrated peripherals, interfaces and DSPs in addition to
415 a variety of MIPS cores.
416
ae2b5bb6
JC
417config RALINK
418 bool "Ralink based machines"
419 select CEVT_R4K
420 select CSRC_R4K
421 select BOOT_RAW
422 select DMA_NONCOHERENT
423 select IRQ_CPU
424 select USE_OF
425 select SYS_HAS_CPU_MIPS32_R1
426 select SYS_HAS_CPU_MIPS32_R2
427 select SYS_SUPPORTS_32BIT_KERNEL
428 select SYS_SUPPORTS_LITTLE_ENDIAN
429 select SYS_HAS_EARLY_PRINTK
430 select HAVE_MACH_CLKDEV
431 select CLKDEV_LOOKUP
2a153f1c
JC
432 select ARCH_HAS_RESET_CONTROLLER
433 select RESET_CONTROLLER
ae2b5bb6 434
1da177e4 435config SGI_IP22
3fa986fa 436 bool "SGI IP22 (Indy/Indigo2)"
0e2794b0
RB
437 select FW_ARC
438 select FW_ARC32
1da177e4 439 select BOOT_ELF32
42f77542 440 select CEVT_R4K
940f6b48 441 select CSRC_R4K
e2defae5 442 select DEFAULT_SGI_PARTITION
1da177e4 443 select DMA_NONCOHERENT
5e83d430 444 select HW_HAS_EISA
d865bea4 445 select I8253
68de4803 446 select I8259
1da177e4
LT
447 select IP22_CPU_SCACHE
448 select IRQ_CPU
aa414dff 449 select GENERIC_ISA_DMA_SUPPORT_BROKEN
e2defae5
TB
450 select SGI_HAS_I8042
451 select SGI_HAS_INDYDOG
36e5c21d 452 select SGI_HAS_HAL2
e2defae5
TB
453 select SGI_HAS_SEEQ
454 select SGI_HAS_WD93
455 select SGI_HAS_ZILOG
1da177e4 456 select SWAP_IO_SPACE
7cf8053b
RB
457 select SYS_HAS_CPU_R4X00
458 select SYS_HAS_CPU_R5000
2b5e63f6
MM
459 #
460 # Disable EARLY_PRINTK for now since it leads to overwritten prom
461 # memory during early boot on some machines.
462 #
463 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
464 # for a more details discussion
465 #
466 # select SYS_HAS_EARLY_PRINTK
ed5ba2fb
YY
467 select SYS_SUPPORTS_32BIT_KERNEL
468 select SYS_SUPPORTS_64BIT_KERNEL
5e83d430 469 select SYS_SUPPORTS_BIG_ENDIAN
1da177e4
LT
470 help
471 This are the SGI Indy, Challenge S and Indigo2, as well as certain
472 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
473 that runs on these, say Y here.
474
475config SGI_IP27
3fa986fa 476 bool "SGI IP27 (Origin200/2000)"
0e2794b0
RB
477 select FW_ARC
478 select FW_ARC64
5e83d430 479 select BOOT_ELF64
e2defae5 480 select DEFAULT_SGI_PARTITION
634286f1 481 select DMA_COHERENT
36a88530 482 select SYS_HAS_EARLY_PRINTK
1da177e4 483 select HW_HAS_PCI
130e2fb7 484 select NR_CPUS_DEFAULT_64
7cf8053b 485 select SYS_HAS_CPU_R10000
ed5ba2fb 486 select SYS_SUPPORTS_64BIT_KERNEL
5e83d430 487 select SYS_SUPPORTS_BIG_ENDIAN
d8cb4e11 488 select SYS_SUPPORTS_NUMA
1a5c5de1 489 select SYS_SUPPORTS_SMP
1da177e4
LT
490 help
491 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
492 workstations. To compile a Linux kernel that runs on these, say Y
493 here.
494
e2defae5 495config SGI_IP28
7d60717e 496 bool "SGI IP28 (Indigo2 R10k)"
0e2794b0
RB
497 select FW_ARC
498 select FW_ARC64
e2defae5
TB
499 select BOOT_ELF64
500 select CEVT_R4K
501 select CSRC_R4K
502 select DEFAULT_SGI_PARTITION
503 select DMA_NONCOHERENT
504 select GENERIC_ISA_DMA_SUPPORT_BROKEN
505 select IRQ_CPU
506 select HW_HAS_EISA
507 select I8253
508 select I8259
e2defae5
TB
509 select SGI_HAS_I8042
510 select SGI_HAS_INDYDOG
5b438c44 511 select SGI_HAS_HAL2
e2defae5
TB
512 select SGI_HAS_SEEQ
513 select SGI_HAS_WD93
514 select SGI_HAS_ZILOG
515 select SWAP_IO_SPACE
516 select SYS_HAS_CPU_R10000
2b5e63f6
MM
517 #
518 # Disable EARLY_PRINTK for now since it leads to overwritten prom
519 # memory during early boot on some machines.
520 #
521 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
522 # for a more details discussion
523 #
524 # select SYS_HAS_EARLY_PRINTK
e2defae5
TB
525 select SYS_SUPPORTS_64BIT_KERNEL
526 select SYS_SUPPORTS_BIG_ENDIAN
527 help
528 This is the SGI Indigo2 with R10000 processor. To compile a Linux
529 kernel that runs on these, say Y here.
530
1da177e4 531config SGI_IP32
cfd2afc0 532 bool "SGI IP32 (O2)"
0e2794b0
RB
533 select FW_ARC
534 select FW_ARC32
1da177e4 535 select BOOT_ELF32
42f77542 536 select CEVT_R4K
940f6b48 537 select CSRC_R4K
1da177e4
LT
538 select DMA_NONCOHERENT
539 select HW_HAS_PCI
dd67b155 540 select IRQ_CPU
1da177e4
LT
541 select R5000_CPU_SCACHE
542 select RM7000_CPU_SCACHE
7cf8053b
RB
543 select SYS_HAS_CPU_R5000
544 select SYS_HAS_CPU_R10000 if BROKEN
545 select SYS_HAS_CPU_RM7000
dd2f18fe 546 select SYS_HAS_CPU_NEVADA
ed5ba2fb 547 select SYS_SUPPORTS_64BIT_KERNEL
23fbee9d 548 select SYS_SUPPORTS_BIG_ENDIAN
23fbee9d 549 help
5e83d430 550 If you want this kernel to run on SGI O2 workstation, say Y here.
1da177e4 551
ade299d8
YY
552config SIBYTE_CRHINE
553 bool "Sibyte BCM91120C-CRhine"
9a6dcea1
AI
554 select BOOT_ELF32
555 select DMA_COHERENT
ade299d8 556 select SIBYTE_BCM1120
9a6dcea1 557 select SWAP_IO_SPACE
7cf8053b 558 select SYS_HAS_CPU_SB1
9a6dcea1
AI
559 select SYS_SUPPORTS_BIG_ENDIAN
560 select SYS_SUPPORTS_LITTLE_ENDIAN
561
ade299d8
YY
562config SIBYTE_CARMEL
563 bool "Sibyte BCM91120x-Carmel"
5e83d430 564 select BOOT_ELF32
1da177e4 565 select DMA_COHERENT
ade299d8 566 select SIBYTE_BCM1120
5e83d430 567 select SWAP_IO_SPACE
7cf8053b 568 select SYS_HAS_CPU_SB1
81731f79 569 select SYS_SUPPORTS_BIG_ENDIAN
5e83d430 570 select SYS_SUPPORTS_LITTLE_ENDIAN
1da177e4 571
ade299d8
YY
572config SIBYTE_CRHONE
573 bool "Sibyte BCM91125C-CRhone"
5e83d430
RB
574 select BOOT_ELF32
575 select DMA_COHERENT
ade299d8 576 select SIBYTE_BCM1125
5e83d430 577 select SWAP_IO_SPACE
7cf8053b 578 select SYS_HAS_CPU_SB1
5e83d430 579 select SYS_SUPPORTS_BIG_ENDIAN
ade299d8 580 select SYS_SUPPORTS_HIGHMEM
5e83d430 581 select SYS_SUPPORTS_LITTLE_ENDIAN
1da177e4 582
5e83d430 583config SIBYTE_RHONE
3fa986fa 584 bool "Sibyte BCM91125E-Rhone"
5e83d430
RB
585 select BOOT_ELF32
586 select DMA_COHERENT
587 select SIBYTE_BCM1125H
588 select SWAP_IO_SPACE
7cf8053b 589 select SYS_HAS_CPU_SB1
5e83d430
RB
590 select SYS_SUPPORTS_BIG_ENDIAN
591 select SYS_SUPPORTS_LITTLE_ENDIAN
1da177e4 592
ade299d8
YY
593config SIBYTE_SWARM
594 bool "Sibyte BCM91250A-SWARM"
5e83d430 595 select BOOT_ELF32
26a940e2 596 select DMA_COHERENT
fcf3ca4c 597 select HAVE_PATA_PLATFORM
ade299d8 598 select SIBYTE_SB1250
5e83d430 599 select SWAP_IO_SPACE
7cf8053b 600 select SYS_HAS_CPU_SB1
5e83d430 601 select SYS_SUPPORTS_BIG_ENDIAN
ade299d8 602 select SYS_SUPPORTS_HIGHMEM
e3ad1c23 603 select SYS_SUPPORTS_LITTLE_ENDIAN
cce335ae 604 select ZONE_DMA32 if 64BIT
e3ad1c23 605
ade299d8
YY
606config SIBYTE_LITTLESUR
607 bool "Sibyte BCM91250C2-LittleSur"
5e83d430
RB
608 select BOOT_ELF32
609 select DMA_COHERENT
fcf3ca4c 610 select HAVE_PATA_PLATFORM
5e83d430
RB
611 select SIBYTE_SB1250
612 select SWAP_IO_SPACE
7cf8053b 613 select SYS_HAS_CPU_SB1
5e83d430
RB
614 select SYS_SUPPORTS_BIG_ENDIAN
615 select SYS_SUPPORTS_HIGHMEM
616 select SYS_SUPPORTS_LITTLE_ENDIAN
1da177e4 617
ade299d8
YY
618config SIBYTE_SENTOSA
619 bool "Sibyte BCM91250E-Sentosa"
5e83d430
RB
620 select BOOT_ELF32
621 select DMA_COHERENT
622 select SIBYTE_SB1250
623 select SWAP_IO_SPACE
7cf8053b 624 select SYS_HAS_CPU_SB1
5e83d430 625 select SYS_SUPPORTS_BIG_ENDIAN
5e83d430 626 select SYS_SUPPORTS_LITTLE_ENDIAN
1da177e4 627
ade299d8
YY
628config SIBYTE_BIGSUR
629 bool "Sibyte BCM91480B-BigSur"
5e83d430
RB
630 select BOOT_ELF32
631 select DMA_COHERENT
ade299d8 632 select NR_CPUS_DEFAULT_4
ade299d8 633 select SIBYTE_BCM1x80
5e83d430 634 select SWAP_IO_SPACE
7cf8053b 635 select SYS_HAS_CPU_SB1
5e83d430 636 select SYS_SUPPORTS_BIG_ENDIAN
651194f8 637 select SYS_SUPPORTS_HIGHMEM
5e83d430 638 select SYS_SUPPORTS_LITTLE_ENDIAN
cce335ae 639 select ZONE_DMA32 if 64BIT
1da177e4 640
14b36af4
TB
641config SNI_RM
642 bool "SNI RM200/300/400"
0e2794b0
RB
643 select FW_ARC if CPU_LITTLE_ENDIAN
644 select FW_ARC32 if CPU_LITTLE_ENDIAN
aaa9fad3 645 select FW_SNIPROM if CPU_BIG_ENDIAN
61ed242d 646 select ARCH_MAY_HAVE_PC_FDC
1da177e4 647 select BOOT_ELF32
42f77542 648 select CEVT_R4K
940f6b48 649 select CSRC_R4K
e2defae5 650 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
1da177e4
LT
651 select DMA_NONCOHERENT
652 select GENERIC_ISA_DMA
8a118c38 653 select HAVE_PCSPKR_PLATFORM
5e83d430 654 select HW_HAS_EISA
1da177e4 655 select HW_HAS_PCI
c066a32a 656 select IRQ_CPU
d865bea4 657 select I8253
1da177e4
LT
658 select I8259
659 select ISA
4a0312fc 660 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
7cf8053b 661 select SYS_HAS_CPU_R4X00
4a0312fc 662 select SYS_HAS_CPU_R5000
c066a32a 663 select SYS_HAS_CPU_R10000
4a0312fc 664 select R5000_CPU_SCACHE
36a88530 665 select SYS_HAS_EARLY_PRINTK
ed5ba2fb 666 select SYS_SUPPORTS_32BIT_KERNEL
7d60717e 667 select SYS_SUPPORTS_64BIT_KERNEL
4a0312fc 668 select SYS_SUPPORTS_BIG_ENDIAN
797798c1 669 select SYS_SUPPORTS_HIGHMEM
5e83d430 670 select SYS_SUPPORTS_LITTLE_ENDIAN
1da177e4 671 help
14b36af4
TB
672 The SNI RM200/300/400 are MIPS-based machines manufactured by
673 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
1da177e4
LT
674 Technology and now in turn merged with Fujitsu. Say Y here to
675 support this machine type.
676
edcaf1a6
AN
677config MACH_TX39XX
678 bool "Toshiba TX39 series based machines"
5e83d430 679
edcaf1a6
AN
680config MACH_TX49XX
681 bool "Toshiba TX49 series based machines"
5e83d430 682
73b4390f
RB
683config MIKROTIK_RB532
684 bool "Mikrotik RB532 boards"
685 select CEVT_R4K
686 select CSRC_R4K
687 select DMA_NONCOHERENT
73b4390f
RB
688 select HW_HAS_PCI
689 select IRQ_CPU
690 select SYS_HAS_CPU_MIPS32_R1
691 select SYS_SUPPORTS_32BIT_KERNEL
692 select SYS_SUPPORTS_LITTLE_ENDIAN
693 select SWAP_IO_SPACE
694 select BOOT_RAW
d888e25b 695 select ARCH_REQUIRE_GPIOLIB
73b4390f
RB
696 help
697 Support the Mikrotik(tm) RouterBoard 532 series,
698 based on the IDT RC32434 SoC.
699
9ddebc46
DD
700config CAVIUM_OCTEON_SOC
701 bool "Cavium Networks Octeon SoC based boards"
a86c7f72
DD
702 select CEVT_R4K
703 select 64BIT_PHYS_ADDR
704 select DMA_COHERENT
705 select SYS_SUPPORTS_64BIT_KERNEL
706 select SYS_SUPPORTS_BIG_ENDIAN
f65aad41 707 select EDAC_SUPPORT
773cb77d 708 select SYS_SUPPORTS_HOTPLUG_CPU
a86c7f72 709 select SYS_HAS_EARLY_PRINTK
5e683389 710 select SYS_HAS_CPU_CAVIUM_OCTEON
a86c7f72 711 select SWAP_IO_SPACE
e8635b48 712 select HW_HAS_PCI
f00e001e 713 select ZONE_DMA32
340fbb8b
DD
714 select USB_ARCH_HAS_OHCI
715 select USB_ARCH_HAS_EHCI
465aaed0 716 select HOLES_IN_ZONE
99cab4bb 717 select ARCH_REQUIRE_GPIOLIB
a86c7f72
DD
718 help
719 This option supports all of the Octeon reference boards from Cavium
720 Networks. It builds a kernel that dynamically determines the Octeon
721 CPU type and supports all known board reference implementations.
722 Some of the supported boards are:
723 EBT3000
724 EBH3000
725 EBH3100
726 Thunder
727 Kodama
728 Hikari
729 Say Y here for most Octeon reference boards.
730
7f058e85
J
731config NLM_XLR_BOARD
732 bool "Netlogic XLR/XLS based systems"
7f058e85
J
733 select BOOT_ELF32
734 select NLM_COMMON
7f058e85
J
735 select SYS_HAS_CPU_XLR
736 select SYS_SUPPORTS_SMP
737 select HW_HAS_PCI
738 select SWAP_IO_SPACE
739 select SYS_SUPPORTS_32BIT_KERNEL
740 select SYS_SUPPORTS_64BIT_KERNEL
741 select 64BIT_PHYS_ADDR
742 select SYS_SUPPORTS_BIG_ENDIAN
743 select SYS_SUPPORTS_HIGHMEM
744 select DMA_COHERENT
745 select NR_CPUS_DEFAULT_32
746 select CEVT_R4K
747 select CSRC_R4K
748 select IRQ_CPU
b97215fd 749 select ZONE_DMA32 if 64BIT
7f058e85
J
750 select SYNC_R4K
751 select SYS_HAS_EARLY_PRINTK
f35574a3
J
752 select USB_ARCH_HAS_OHCI if USB_SUPPORT
753 select USB_ARCH_HAS_EHCI if USB_SUPPORT
8f0b0430
J
754 select SYS_SUPPORTS_ZBOOT
755 select SYS_SUPPORTS_ZBOOT_UART16550
7f058e85
J
756 help
757 Support for systems based on Netlogic XLR and XLS processors.
758 Say Y here if you have a XLR or XLS based board.
759
1c773ea4
J
760config NLM_XLP_BOARD
761 bool "Netlogic XLP based systems"
1c773ea4
J
762 select BOOT_ELF32
763 select NLM_COMMON
764 select SYS_HAS_CPU_XLP
765 select SYS_SUPPORTS_SMP
766 select HW_HAS_PCI
1c773ea4
J
767 select SYS_SUPPORTS_32BIT_KERNEL
768 select SYS_SUPPORTS_64BIT_KERNEL
769 select 64BIT_PHYS_ADDR
770 select SYS_SUPPORTS_BIG_ENDIAN
771 select SYS_SUPPORTS_LITTLE_ENDIAN
772 select SYS_SUPPORTS_HIGHMEM
773 select DMA_COHERENT
774 select NR_CPUS_DEFAULT_32
775 select CEVT_R4K
776 select CSRC_R4K
777 select IRQ_CPU
b97215fd 778 select ZONE_DMA32 if 64BIT
1c773ea4
J
779 select SYNC_R4K
780 select SYS_HAS_EARLY_PRINTK
2f6528e1 781 select USE_OF
8f0b0430
J
782 select SYS_SUPPORTS_ZBOOT
783 select SYS_SUPPORTS_ZBOOT_UART16550
1c773ea4
J
784 help
785 This board is based on Netlogic XLP Processor.
786 Say Y here if you have a XLP based board.
787
5e83d430 788endchoice
1da177e4 789
e8c7c482 790source "arch/mips/alchemy/Kconfig"
d4a67d9d 791source "arch/mips/ath79/Kconfig"
a656ffcb 792source "arch/mips/bcm47xx/Kconfig"
e7300d04 793source "arch/mips/bcm63xx/Kconfig"
5e83d430 794source "arch/mips/jazz/Kconfig"
5ebabe59 795source "arch/mips/jz4740/Kconfig"
8ec6d935 796source "arch/mips/lantiq/Kconfig"
1f21d2bd 797source "arch/mips/lasat/Kconfig"
0f3a05cb 798source "arch/mips/pmcs-msp71xx/Kconfig"
ae2b5bb6 799source "arch/mips/ralink/Kconfig"
29c48699 800source "arch/mips/sgi-ip27/Kconfig"
38b18f72 801source "arch/mips/sibyte/Kconfig"
22b1d707 802source "arch/mips/txx9/Kconfig"
5e83d430 803source "arch/mips/vr41xx/Kconfig"
a86c7f72 804source "arch/mips/cavium-octeon/Kconfig"
85749d24 805source "arch/mips/loongson/Kconfig"
ca585cf9 806source "arch/mips/loongson1/Kconfig"
7f058e85 807source "arch/mips/netlogic/Kconfig"
38b18f72 808
5e83d430
RB
809endmenu
810
1da177e4
LT
811config RWSEM_GENERIC_SPINLOCK
812 bool
813 default y
814
815config RWSEM_XCHGADD_ALGORITHM
816 bool
817
f0d1b0b3
DH
818config ARCH_HAS_ILOG2_U32
819 bool
820 default n
821
822config ARCH_HAS_ILOG2_U64
823 bool
824 default n
825
3c9ee7ef
AM
826config GENERIC_HWEIGHT
827 bool
828 default y
829
1da177e4
LT
830config GENERIC_CALIBRATE_DELAY
831 bool
832 default y
833
ae1e9130 834config SCHED_OMIT_FRAME_POINTER
1cc89038
AN
835 bool
836 default y
837
1da177e4
LT
838#
839# Select some configuration options automatically based on user selections.
840#
0e2794b0 841config FW_ARC
1da177e4 842 bool
1da177e4 843
61ed242d
RB
844config ARCH_MAY_HAVE_PC_FDC
845 bool
846
9267a30d
MSJ
847config BOOT_RAW
848 bool
849
217dd11e
RB
850config CEVT_BCM1480
851 bool
852
6457d9fc
YY
853config CEVT_DS1287
854 bool
855
1097c6ac
YY
856config CEVT_GT641XX
857 bool
858
42f77542
RB
859config CEVT_R4K
860 bool
861
0ab2b7d0
RG
862config CEVT_GIC
863 bool
864
217dd11e
RB
865config CEVT_SB1250
866 bool
867
229f773e
AN
868config CEVT_TXX9
869 bool
870
217dd11e
RB
871config CSRC_BCM1480
872 bool
873
4247417d
YY
874config CSRC_IOASIC
875 bool
876
940f6b48
RB
877config CSRC_R4K
878 bool
879
778eeb1b
SH
880config CSRC_GIC
881 bool
882
217dd11e
RB
883config CSRC_SB1250
884 bool
885
a9aec7fe 886config GPIO_TXX9
7444a72e 887 select ARCH_REQUIRE_GPIOLIB
a9aec7fe
AN
888 bool
889
0e2794b0 890config FW_CFE
df78b5c8
AJ
891 bool
892
4bafad92
FT
893config ARCH_DMA_ADDR_T_64BIT
894 def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT
895
4ce588cd 896config DMA_COHERENT
1da177e4
LT
897 bool
898
4ce588cd
RB
899config DMA_NONCOHERENT
900 bool
e1e02b32 901 select NEED_DMA_MAP_STATE
4ce588cd 902
e1e02b32 903config NEED_DMA_MAP_STATE
1da177e4
LT
904 bool
905
36a88530 906config SYS_HAS_EARLY_PRINTK
1da177e4 907 bool
1da177e4 908
dbb74540 909config HOTPLUG_CPU
1b2bc75c 910 bool "Support for hot-pluggable CPUs"
40b31360 911 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
1b2bc75c
RB
912 help
913 Say Y here to allow turning CPUs off and on. CPUs can be
914 controlled through /sys/devices/system/cpu.
915 (Note: power management support will enable this option
916 automatically on SMP systems. )
917 Say N if you want to disable CPU hotplug.
918
919config SYS_SUPPORTS_HOTPLUG_CPU
dbb74540 920 bool
dbb74540 921
1da177e4
LT
922config I8259
923 bool
1da177e4 924
1da177e4
LT
925config MIPS_BONITO64
926 bool
1da177e4
LT
927
928config MIPS_MSC
929 bool
1da177e4 930
1f21d2bd
BM
931config MIPS_NILE4
932 bool
933
39b8d525
RB
934config SYNC_R4K
935 bool
936
487d70d0
GJ
937config MIPS_MACHINE
938 def_bool n
939
d388d685
MR
940config NO_IOPORT
941 def_bool n
942
8313da30
RB
943config GENERIC_ISA_DMA
944 bool
945 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
a35bee8a 946 select ISA_DMA_API
8313da30 947
aa414dff
RB
948config GENERIC_ISA_DMA_SUPPORT_BROKEN
949 bool
8313da30 950 select GENERIC_ISA_DMA
aa414dff 951
a35bee8a
NK
952config ISA_DMA_API
953 bool
954
465aaed0
DD
955config HOLES_IN_ZONE
956 bool
957
5e83d430 958#
6b2aac42 959# Endianness selection. Sufficiently obscure so many users don't know what to
5e83d430
RB
960# answer,so we try hard to limit the available choices. Also the use of a
961# choice statement should be more obvious to the user.
962#
963choice
6b2aac42 964 prompt "Endianness selection"
1da177e4
LT
965 help
966 Some MIPS machines can be configured for either little or big endian
5e83d430 967 byte order. These modes require different kernels and a different
3cb2fccc 968 Linux distribution. In general there is one preferred byteorder for a
5e83d430 969 particular system but some systems are just as commonly used in the
3dde6ad8 970 one or the other endianness.
5e83d430
RB
971
972config CPU_BIG_ENDIAN
973 bool "Big endian"
974 depends on SYS_SUPPORTS_BIG_ENDIAN
975
976config CPU_LITTLE_ENDIAN
977 bool "Little endian"
978 depends on SYS_SUPPORTS_LITTLE_ENDIAN
5e83d430
RB
979
980endchoice
981
22b0763a
DD
982config EXPORT_UASM
983 bool
984
2116245e
RB
985config SYS_SUPPORTS_APM_EMULATION
986 bool
987
5e83d430
RB
988config SYS_SUPPORTS_BIG_ENDIAN
989 bool
990
991config SYS_SUPPORTS_LITTLE_ENDIAN
992 bool
1da177e4 993
9cffd154
DD
994config SYS_SUPPORTS_HUGETLBFS
995 bool
996 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
997 default y
998
aa1762f4
DD
999config MIPS_HUGE_TLB_SUPPORT
1000 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1001
1da177e4
LT
1002config IRQ_CPU
1003 bool
1004
1005config IRQ_CPU_RM7K
1006 bool
1007
9267a30d
MSJ
1008config IRQ_MSP_SLP
1009 bool
1010
1011config IRQ_MSP_CIC
1012 bool
1013
8420fd00
AN
1014config IRQ_TXX9
1015 bool
1016
d5ab1a69
YY
1017config IRQ_GT641XX
1018 bool
1019
39b8d525
RB
1020config IRQ_GIC
1021 bool
1022
252161ec 1023config PCI_GT64XXX_PCI0
1da177e4 1024 bool
1da177e4 1025
9267a30d
MSJ
1026config NO_EXCEPT_FILL
1027 bool
1028
a83860c2
RB
1029config SOC_EMMA2RH
1030 bool
1031 select CEVT_R4K
1032 select CSRC_R4K
1033 select DMA_NONCOHERENT
1034 select IRQ_CPU
1035 select SWAP_IO_SPACE
1036 select SYS_HAS_CPU_R5500
1037 select SYS_SUPPORTS_32BIT_KERNEL
1038 select SYS_SUPPORTS_64BIT_KERNEL
1039 select SYS_SUPPORTS_BIG_ENDIAN
1040
edb6310a
DL
1041config SOC_PNX833X
1042 bool
1043 select CEVT_R4K
1044 select CSRC_R4K
1045 select IRQ_CPU
1046 select DMA_NONCOHERENT
1047 select SYS_HAS_CPU_MIPS32_R2
1048 select SYS_SUPPORTS_32BIT_KERNEL
1049 select SYS_SUPPORTS_LITTLE_ENDIAN
1050 select SYS_SUPPORTS_BIG_ENDIAN
edb6310a
DL
1051 select CPU_MIPSR2_IRQ_VI
1052
1053config SOC_PNX8335
1054 bool
1055 select SOC_PNX833X
1056
1da177e4
LT
1057config SWAP_IO_SPACE
1058 bool
1059
e2defae5
TB
1060config SGI_HAS_INDYDOG
1061 bool
1062
5b438c44
TB
1063config SGI_HAS_HAL2
1064 bool
1065
e2defae5
TB
1066config SGI_HAS_SEEQ
1067 bool
1068
1069config SGI_HAS_WD93
1070 bool
1071
1072config SGI_HAS_ZILOG
1073 bool
1074
1075config SGI_HAS_I8042
1076 bool
1077
1078config DEFAULT_SGI_PARTITION
1079 bool
1080
0e2794b0 1081config FW_ARC32
5e83d430
RB
1082 bool
1083
aaa9fad3 1084config FW_SNIPROM
231a35d3
TB
1085 bool
1086
1da177e4
LT
1087config BOOT_ELF32
1088 bool
1da177e4
LT
1089
1090config MIPS_L1_CACHE_SHIFT
1091 int
80fb55a9 1092 default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL || SOC_RT288X
0db2b74e 1093 default "6" if MIPS_CPU_SCACHE
a86c7f72 1094 default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON
1da177e4
LT
1095 default "5"
1096
1da177e4
LT
1097config HAVE_STD_PC_SERIAL_PORT
1098 bool
1099
1da177e4
LT
1100config ARC_CONSOLE
1101 bool "ARC console support"
e2defae5 1102 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1da177e4
LT
1103
1104config ARC_MEMORY
1105 bool
14b36af4 1106 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1da177e4
LT
1107 default y
1108
1109config ARC_PROMLIB
1110 bool
e2defae5 1111 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1da177e4
LT
1112 default y
1113
0e2794b0 1114config FW_ARC64
1da177e4 1115 bool
1da177e4
LT
1116
1117config BOOT_ELF64
1118 bool
1da177e4 1119
1da177e4
LT
1120menu "CPU selection"
1121
1122choice
1123 prompt "CPU type"
1124 default CPU_R4X00
1125
3702bba5
WZ
1126config CPU_LOONGSON2E
1127 bool "Loongson 2E"
1128 depends on SYS_HAS_CPU_LOONGSON2E
1129 select CPU_LOONGSON2
2a21c730
FZ
1130 help
1131 The Loongson 2E processor implements the MIPS III instruction set
1132 with many extensions.
1133
25985edc 1134 It has an internal FPGA northbridge, which is compatible to
6f7a251a
WZ
1135 bonito64.
1136
1137config CPU_LOONGSON2F
1138 bool "Loongson 2F"
1139 depends on SYS_HAS_CPU_LOONGSON2F
1140 select CPU_LOONGSON2
c197da91 1141 select ARCH_REQUIRE_GPIOLIB
6f7a251a
WZ
1142 help
1143 The Loongson 2F processor implements the MIPS III instruction set
1144 with many extensions.
1145
1146 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1147 have a similar programming interface with FPGA northbridge used in
1148 Loongson2E.
1149
ca585cf9
KC
1150config CPU_LOONGSON1B
1151 bool "Loongson 1B"
1152 depends on SYS_HAS_CPU_LOONGSON1B
1153 select CPU_LOONGSON1
1154 help
1155 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1156 release 2 instruction set.
1157
6e760c8d
RB
1158config CPU_MIPS32_R1
1159 bool "MIPS32 Release 1"
7cf8053b 1160 depends on SYS_HAS_CPU_MIPS32_R1
6e760c8d 1161 select CPU_HAS_PREFETCH
797798c1 1162 select CPU_SUPPORTS_32BIT_KERNEL
ec28f306 1163 select CPU_SUPPORTS_HIGHMEM
1e5f1caa 1164 help
5e83d430 1165 Choose this option to build a kernel for release 1 or later of the
1e5f1caa
RB
1166 MIPS32 architecture. Most modern embedded systems with a 32-bit
1167 MIPS processor are based on a MIPS32 processor. If you know the
1168 specific type of processor in your system, choose those that one
1169 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1170 Release 2 of the MIPS32 architecture is available since several
1171 years so chances are you even have a MIPS32 Release 2 processor
1172 in which case you should choose CPU_MIPS32_R2 instead for better
1173 performance.
1174
1175config CPU_MIPS32_R2
1176 bool "MIPS32 Release 2"
7cf8053b 1177 depends on SYS_HAS_CPU_MIPS32_R2
1e5f1caa 1178 select CPU_HAS_PREFETCH
797798c1 1179 select CPU_SUPPORTS_32BIT_KERNEL
ec28f306 1180 select CPU_SUPPORTS_HIGHMEM
2235a54d 1181 select HAVE_KVM
6e760c8d 1182 help
5e83d430 1183 Choose this option to build a kernel for release 2 or later of the
6e760c8d
RB
1184 MIPS32 architecture. Most modern embedded systems with a 32-bit
1185 MIPS processor are based on a MIPS32 processor. If you know the
1186 specific type of processor in your system, choose those that one
1187 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1188
1189config CPU_MIPS64_R1
1190 bool "MIPS64 Release 1"
7cf8053b 1191 depends on SYS_HAS_CPU_MIPS64_R1
797798c1 1192 select CPU_HAS_PREFETCH
ed5ba2fb
YY
1193 select CPU_SUPPORTS_32BIT_KERNEL
1194 select CPU_SUPPORTS_64BIT_KERNEL
ec28f306 1195 select CPU_SUPPORTS_HIGHMEM
9cffd154 1196 select CPU_SUPPORTS_HUGEPAGES
6e760c8d
RB
1197 help
1198 Choose this option to build a kernel for release 1 or later of the
1199 MIPS64 architecture. Many modern embedded systems with a 64-bit
1200 MIPS processor are based on a MIPS64 processor. If you know the
1201 specific type of processor in your system, choose those that one
1202 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1e5f1caa
RB
1203 Release 2 of the MIPS64 architecture is available since several
1204 years so chances are you even have a MIPS64 Release 2 processor
1205 in which case you should choose CPU_MIPS64_R2 instead for better
1206 performance.
1207
1208config CPU_MIPS64_R2
1209 bool "MIPS64 Release 2"
7cf8053b 1210 depends on SYS_HAS_CPU_MIPS64_R2
797798c1 1211 select CPU_HAS_PREFETCH
1e5f1caa
RB
1212 select CPU_SUPPORTS_32BIT_KERNEL
1213 select CPU_SUPPORTS_64BIT_KERNEL
ec28f306 1214 select CPU_SUPPORTS_HIGHMEM
9cffd154 1215 select CPU_SUPPORTS_HUGEPAGES
1e5f1caa
RB
1216 help
1217 Choose this option to build a kernel for release 2 or later of the
1218 MIPS64 architecture. Many modern embedded systems with a 64-bit
1219 MIPS processor are based on a MIPS64 processor. If you know the
1220 specific type of processor in your system, choose those that one
1221 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1da177e4
LT
1222
1223config CPU_R3000
1224 bool "R3000"
7cf8053b 1225 depends on SYS_HAS_CPU_R3000
f7062ddb 1226 select CPU_HAS_WB
ed5ba2fb 1227 select CPU_SUPPORTS_32BIT_KERNEL
797798c1 1228 select CPU_SUPPORTS_HIGHMEM
1da177e4
LT
1229 help
1230 Please make sure to pick the right CPU type. Linux/MIPS is not
1231 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1232 *not* work on R4000 machines and vice versa. However, since most
1233 of the supported machines have an R4000 (or similar) CPU, R4x00
1234 might be a safe bet. If the resulting kernel does not work,
1235 try to recompile with R3000.
1236
1237config CPU_TX39XX
1238 bool "R39XX"
7cf8053b 1239 depends on SYS_HAS_CPU_TX39XX
ed5ba2fb 1240 select CPU_SUPPORTS_32BIT_KERNEL
1da177e4
LT
1241
1242config CPU_VR41XX
1243 bool "R41xx"
7cf8053b 1244 depends on SYS_HAS_CPU_VR41XX
ed5ba2fb
YY
1245 select CPU_SUPPORTS_32BIT_KERNEL
1246 select CPU_SUPPORTS_64BIT_KERNEL
1da177e4 1247 help
5e83d430 1248 The options selects support for the NEC VR4100 series of processors.
1da177e4
LT
1249 Only choose this option if you have one of these processors as a
1250 kernel built with this option will not run on any other type of
1251 processor or vice versa.
1252
1253config CPU_R4300
1254 bool "R4300"
7cf8053b 1255 depends on SYS_HAS_CPU_R4300
ed5ba2fb
YY
1256 select CPU_SUPPORTS_32BIT_KERNEL
1257 select CPU_SUPPORTS_64BIT_KERNEL
1da177e4
LT
1258 help
1259 MIPS Technologies R4300-series processors.
1260
1261config CPU_R4X00
1262 bool "R4x00"
7cf8053b 1263 depends on SYS_HAS_CPU_R4X00
ed5ba2fb
YY
1264 select CPU_SUPPORTS_32BIT_KERNEL
1265 select CPU_SUPPORTS_64BIT_KERNEL
970d032f 1266 select CPU_SUPPORTS_HUGEPAGES
1da177e4
LT
1267 help
1268 MIPS Technologies R4000-series processors other than 4300, including
1269 the R4000, R4400, R4600, and 4700.
1270
1271config CPU_TX49XX
1272 bool "R49XX"
7cf8053b 1273 depends on SYS_HAS_CPU_TX49XX
de862b48 1274 select CPU_HAS_PREFETCH
ed5ba2fb
YY
1275 select CPU_SUPPORTS_32BIT_KERNEL
1276 select CPU_SUPPORTS_64BIT_KERNEL
970d032f 1277 select CPU_SUPPORTS_HUGEPAGES
1da177e4
LT
1278
1279config CPU_R5000
1280 bool "R5000"
7cf8053b 1281 depends on SYS_HAS_CPU_R5000
ed5ba2fb
YY
1282 select CPU_SUPPORTS_32BIT_KERNEL
1283 select CPU_SUPPORTS_64BIT_KERNEL
970d032f 1284 select CPU_SUPPORTS_HUGEPAGES
1da177e4
LT
1285 help
1286 MIPS Technologies R5000-series processors other than the Nevada.
1287
1288config CPU_R5432
1289 bool "R5432"
7cf8053b 1290 depends on SYS_HAS_CPU_R5432
5e83d430
RB
1291 select CPU_SUPPORTS_32BIT_KERNEL
1292 select CPU_SUPPORTS_64BIT_KERNEL
970d032f 1293 select CPU_SUPPORTS_HUGEPAGES
1da177e4 1294
542c1020
SK
1295config CPU_R5500
1296 bool "R5500"
1297 depends on SYS_HAS_CPU_R5500
542c1020
SK
1298 select CPU_SUPPORTS_32BIT_KERNEL
1299 select CPU_SUPPORTS_64BIT_KERNEL
9cffd154 1300 select CPU_SUPPORTS_HUGEPAGES
542c1020
SK
1301 help
1302 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1303 instruction set.
1304
1da177e4
LT
1305config CPU_R6000
1306 bool "R6000"
7cf8053b 1307 depends on SYS_HAS_CPU_R6000
ed5ba2fb 1308 select CPU_SUPPORTS_32BIT_KERNEL
1da177e4
LT
1309 help
1310 MIPS Technologies R6000 and R6000A series processors. Note these
c09b47d8 1311 processors are extremely rare and the support for them is incomplete.
1da177e4
LT
1312
1313config CPU_NEVADA
1314 bool "RM52xx"
7cf8053b 1315 depends on SYS_HAS_CPU_NEVADA
ed5ba2fb
YY
1316 select CPU_SUPPORTS_32BIT_KERNEL
1317 select CPU_SUPPORTS_64BIT_KERNEL
970d032f 1318 select CPU_SUPPORTS_HUGEPAGES
1da177e4
LT
1319 help
1320 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1321
1322config CPU_R8000
1323 bool "R8000"
7cf8053b 1324 depends on SYS_HAS_CPU_R8000
5e83d430 1325 select CPU_HAS_PREFETCH
ed5ba2fb 1326 select CPU_SUPPORTS_64BIT_KERNEL
1da177e4
LT
1327 help
1328 MIPS Technologies R8000 processors. Note these processors are
1329 uncommon and the support for them is incomplete.
1330
1331config CPU_R10000
1332 bool "R10000"
7cf8053b 1333 depends on SYS_HAS_CPU_R10000
5e83d430 1334 select CPU_HAS_PREFETCH
ed5ba2fb
YY
1335 select CPU_SUPPORTS_32BIT_KERNEL
1336 select CPU_SUPPORTS_64BIT_KERNEL
797798c1 1337 select CPU_SUPPORTS_HIGHMEM
970d032f 1338 select CPU_SUPPORTS_HUGEPAGES
1da177e4
LT
1339 help
1340 MIPS Technologies R10000-series processors.
1341
1342config CPU_RM7000
1343 bool "RM7000"
7cf8053b 1344 depends on SYS_HAS_CPU_RM7000
5e83d430 1345 select CPU_HAS_PREFETCH
ed5ba2fb
YY
1346 select CPU_SUPPORTS_32BIT_KERNEL
1347 select CPU_SUPPORTS_64BIT_KERNEL
797798c1 1348 select CPU_SUPPORTS_HIGHMEM
970d032f 1349 select CPU_SUPPORTS_HUGEPAGES
1da177e4
LT
1350
1351config CPU_SB1
1352 bool "SB1"
7cf8053b 1353 depends on SYS_HAS_CPU_SB1
ed5ba2fb
YY
1354 select CPU_SUPPORTS_32BIT_KERNEL
1355 select CPU_SUPPORTS_64BIT_KERNEL
797798c1 1356 select CPU_SUPPORTS_HIGHMEM
970d032f 1357 select CPU_SUPPORTS_HUGEPAGES
0004a9df 1358 select WEAK_ORDERING
1da177e4 1359
a86c7f72
DD
1360config CPU_CAVIUM_OCTEON
1361 bool "Cavium Octeon processor"
5e683389 1362 depends on SYS_HAS_CPU_CAVIUM_OCTEON
7ee91de4 1363 select ARCH_SPARSEMEM_ENABLE
a86c7f72
DD
1364 select CPU_HAS_PREFETCH
1365 select CPU_SUPPORTS_64BIT_KERNEL
1366 select SYS_SUPPORTS_SMP
1367 select NR_CPUS_DEFAULT_16
1368 select WEAK_ORDERING
a86c7f72 1369 select CPU_SUPPORTS_HIGHMEM
9cffd154 1370 select CPU_SUPPORTS_HUGEPAGES
7ed18152
DD
1371 select LIBFDT
1372 select USE_OF
9296d94d 1373 select USB_EHCI_BIG_ENDIAN_MMIO
a86c7f72
DD
1374 help
1375 The Cavium Octeon processor is a highly integrated chip containing
1376 many ethernet hardware widgets for networking tasks. The processor
1377 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1378 Full details can be found at http://www.caviumnetworks.com.
1379
cd746249
JG
1380config CPU_BMIPS
1381 bool "Broadcom BMIPS"
1382 depends on SYS_HAS_CPU_BMIPS
1383 select CPU_MIPS32
fe7f62c0 1384 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
cd746249
JG
1385 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1386 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1387 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1388 select CPU_SUPPORTS_32BIT_KERNEL
1389 select DMA_NONCOHERENT
1390 select IRQ_CPU
1391 select SWAP_IO_SPACE
1392 select WEAK_ORDERING
56183549 1393 select CPU_SUPPORTS_HIGHMEM
69aaf9c8 1394 select CPU_HAS_PREFETCH
c1c0c461 1395 help
fe7f62c0 1396 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
c1c0c461 1397
7f058e85
J
1398config CPU_XLR
1399 bool "Netlogic XLR SoC"
1400 depends on SYS_HAS_CPU_XLR
1401 select CPU_SUPPORTS_32BIT_KERNEL
1402 select CPU_SUPPORTS_64BIT_KERNEL
1403 select CPU_SUPPORTS_HIGHMEM
970d032f 1404 select CPU_SUPPORTS_HUGEPAGES
7f058e85
J
1405 select WEAK_ORDERING
1406 select WEAK_REORDERING_BEYOND_LLSC
7f058e85
J
1407 help
1408 Netlogic Microsystems XLR/XLS processors.
1c773ea4
J
1409
1410config CPU_XLP
1411 bool "Netlogic XLP SoC"
1412 depends on SYS_HAS_CPU_XLP
1413 select CPU_SUPPORTS_32BIT_KERNEL
1414 select CPU_SUPPORTS_64BIT_KERNEL
1415 select CPU_SUPPORTS_HIGHMEM
1c773ea4
J
1416 select WEAK_ORDERING
1417 select WEAK_REORDERING_BEYOND_LLSC
1418 select CPU_HAS_PREFETCH
d6504846 1419 select CPU_MIPSR2
1c773ea4
J
1420 help
1421 Netlogic Microsystems XLP processors.
1da177e4
LT
1422endchoice
1423
622844bf
WZ
1424if CPU_LOONGSON2F
1425config CPU_NOP_WORKAROUNDS
1426 bool
1427
1428config CPU_JUMP_WORKAROUNDS
1429 bool
1430
1431config CPU_LOONGSON2F_WORKAROUNDS
1432 bool "Loongson 2F Workarounds"
1433 default y
1434 select CPU_NOP_WORKAROUNDS
1435 select CPU_JUMP_WORKAROUNDS
1436 help
1437 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1438 require workarounds. Without workarounds the system may hang
1439 unexpectedly. For more information please refer to the gas
1440 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1441
1442 Loongson 2F03 and later have fixed these issues and no workarounds
1443 are needed. The workarounds have no significant side effect on them
1444 but may decrease the performance of the system so this option should
1445 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1446 systems.
1447
1448 If unsure, please say Y.
1449endif # CPU_LOONGSON2F
1450
1b93b3c3
WZ
1451config SYS_SUPPORTS_ZBOOT
1452 bool
1453 select HAVE_KERNEL_GZIP
1454 select HAVE_KERNEL_BZIP2
31c4867d 1455 select HAVE_KERNEL_LZ4
1b93b3c3 1456 select HAVE_KERNEL_LZMA
fe1d45e0 1457 select HAVE_KERNEL_LZO
4e23eb63 1458 select HAVE_KERNEL_XZ
1b93b3c3
WZ
1459
1460config SYS_SUPPORTS_ZBOOT_UART16550
1461 bool
1462 select SYS_SUPPORTS_ZBOOT
1463
3702bba5
WZ
1464config CPU_LOONGSON2
1465 bool
1466 select CPU_SUPPORTS_32BIT_KERNEL
1467 select CPU_SUPPORTS_64BIT_KERNEL
1468 select CPU_SUPPORTS_HIGHMEM
970d032f 1469 select CPU_SUPPORTS_HUGEPAGES
3702bba5 1470
ca585cf9
KC
1471config CPU_LOONGSON1
1472 bool
1473 select CPU_MIPS32
1474 select CPU_MIPSR2
1475 select CPU_HAS_PREFETCH
1476 select CPU_SUPPORTS_32BIT_KERNEL
1477 select CPU_SUPPORTS_HIGHMEM
1478
fe7f62c0 1479config CPU_BMIPS32_3300
04fa8bf7 1480 select SMP_UP if SMP
1bbb6c1b 1481 bool
cd746249
JG
1482
1483config CPU_BMIPS4350
1484 bool
1485 select SYS_SUPPORTS_SMP
1486 select SYS_SUPPORTS_HOTPLUG_CPU
1487
1488config CPU_BMIPS4380
1489 bool
1490 select SYS_SUPPORTS_SMP
1491 select SYS_SUPPORTS_HOTPLUG_CPU
1492
1493config CPU_BMIPS5000
1494 bool
cd746249
JG
1495 select MIPS_CPU_SCACHE
1496 select SYS_SUPPORTS_SMP
1497 select SYS_SUPPORTS_HOTPLUG_CPU
1bbb6c1b 1498
3702bba5 1499config SYS_HAS_CPU_LOONGSON2E
2a21c730
FZ
1500 bool
1501
6f7a251a
WZ
1502config SYS_HAS_CPU_LOONGSON2F
1503 bool
55045ff5
WZ
1504 select CPU_SUPPORTS_CPUFREQ
1505 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
22f1fdfd 1506 select CPU_SUPPORTS_UNCACHED_ACCELERATED
6f7a251a 1507
ca585cf9
KC
1508config SYS_HAS_CPU_LOONGSON1B
1509 bool
1510
7cf8053b
RB
1511config SYS_HAS_CPU_MIPS32_R1
1512 bool
1513
1514config SYS_HAS_CPU_MIPS32_R2
1515 bool
1516
1517config SYS_HAS_CPU_MIPS64_R1
1518 bool
1519
1520config SYS_HAS_CPU_MIPS64_R2
1521 bool
1522
1523config SYS_HAS_CPU_R3000
1524 bool
1525
1526config SYS_HAS_CPU_TX39XX
1527 bool
1528
1529config SYS_HAS_CPU_VR41XX
1530 bool
1531
1532config SYS_HAS_CPU_R4300
1533 bool
1534
1535config SYS_HAS_CPU_R4X00
1536 bool
1537
1538config SYS_HAS_CPU_TX49XX
1539 bool
1540
1541config SYS_HAS_CPU_R5000
1542 bool
1543
1544config SYS_HAS_CPU_R5432
1545 bool
1546
542c1020
SK
1547config SYS_HAS_CPU_R5500
1548 bool
1549
7cf8053b
RB
1550config SYS_HAS_CPU_R6000
1551 bool
1552
1553config SYS_HAS_CPU_NEVADA
1554 bool
1555
1556config SYS_HAS_CPU_R8000
1557 bool
1558
1559config SYS_HAS_CPU_R10000
1560 bool
1561
1562config SYS_HAS_CPU_RM7000
1563 bool
1564
7cf8053b
RB
1565config SYS_HAS_CPU_SB1
1566 bool
1567
5e683389
DD
1568config SYS_HAS_CPU_CAVIUM_OCTEON
1569 bool
1570
cd746249
JG
1571config SYS_HAS_CPU_BMIPS
1572 bool
1573
fe7f62c0 1574config SYS_HAS_CPU_BMIPS32_3300
c1c0c461 1575 bool
cd746249 1576 select SYS_HAS_CPU_BMIPS
c1c0c461
KC
1577
1578config SYS_HAS_CPU_BMIPS4350
1579 bool
cd746249 1580 select SYS_HAS_CPU_BMIPS
c1c0c461
KC
1581
1582config SYS_HAS_CPU_BMIPS4380
1583 bool
cd746249 1584 select SYS_HAS_CPU_BMIPS
c1c0c461
KC
1585
1586config SYS_HAS_CPU_BMIPS5000
1587 bool
cd746249 1588 select SYS_HAS_CPU_BMIPS
c1c0c461 1589
7f058e85
J
1590config SYS_HAS_CPU_XLR
1591 bool
1592
1c773ea4
J
1593config SYS_HAS_CPU_XLP
1594 bool
1595
17099b11
RB
1596#
1597# CPU may reorder R->R, R->W, W->R, W->W
1598# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1599#
0004a9df
RB
1600config WEAK_ORDERING
1601 bool
17099b11
RB
1602
1603#
1604# CPU may reorder reads and writes beyond LL/SC
1605# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1606#
1607config WEAK_REORDERING_BEYOND_LLSC
1608 bool
5e83d430
RB
1609endmenu
1610
1611#
c09b47d8 1612# These two indicate any level of the MIPS32 and MIPS64 architecture
5e83d430
RB
1613#
1614config CPU_MIPS32
1615 bool
1616 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1617
1618config CPU_MIPS64
1619 bool
1620 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1621
1622#
c09b47d8 1623# These two indicate the revision of the architecture, either Release 1 or Release 2
5e83d430
RB
1624#
1625config CPU_MIPSR1
1626 bool
1627 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1628
1629config CPU_MIPSR2
1630 bool
a86c7f72 1631 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
5e83d430
RB
1632
1633config SYS_SUPPORTS_32BIT_KERNEL
1634 bool
1635config SYS_SUPPORTS_64BIT_KERNEL
1636 bool
1637config CPU_SUPPORTS_32BIT_KERNEL
1638 bool
1639config CPU_SUPPORTS_64BIT_KERNEL
1640 bool
55045ff5
WZ
1641config CPU_SUPPORTS_CPUFREQ
1642 bool
1643config CPU_SUPPORTS_ADDRWINCFG
1644 bool
9cffd154
DD
1645config CPU_SUPPORTS_HUGEPAGES
1646 bool
22f1fdfd
WZ
1647config CPU_SUPPORTS_UNCACHED_ACCELERATED
1648 bool
82622284
DD
1649config MIPS_PGD_C0_CONTEXT
1650 bool
d6504846 1651 default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
5e83d430 1652
8192c9ea
DD
1653#
1654# Set to y for ptrace access to watch registers.
1655#
1656config HARDWARE_WATCHPOINTS
1657 bool
f839490a 1658 default y if CPU_MIPSR1 || CPU_MIPSR2
8192c9ea 1659
5e83d430
RB
1660menu "Kernel type"
1661
1662choice
5e83d430
RB
1663 prompt "Kernel code model"
1664 help
1665 You should only select this option if you have a workload that
1666 actually benefits from 64-bit processing or if your machine has
1667 large memory. You will only be presented a single option in this
1668 menu if your system does not support both 32-bit and 64-bit kernels.
1669
1670config 32BIT
1671 bool "32-bit kernel"
1672 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1673 select TRAD_SIGNALS
1674 help
1675 Select this option if you want to build a 32-bit kernel.
1676config 64BIT
1677 bool "64-bit kernel"
1678 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1679 help
1680 Select this option if you want to build a 64-bit kernel.
1681
1682endchoice
1683
2235a54d
SL
1684config KVM_GUEST
1685 bool "KVM Guest Kernel"
f2a5b1d7 1686 depends on BROKEN_ON_SMP
2235a54d
SL
1687 help
1688 Select this option if building a guest kernel for KVM (Trap & Emulate) mode
1689
1690config KVM_HOST_FREQ
1691 int "KVM Host Processor Frequency (MHz)"
1692 depends on KVM_GUEST
1693 default 500
1694 help
1695 Select this option if building a guest kernel for KVM to skip
1696 RTC emulation when determining guest CPU Frequency. Instead, the guest
1697 processor frequency is automatically derived from the host frequency.
1698
1da177e4
LT
1699choice
1700 prompt "Kernel page size"
1701 default PAGE_SIZE_4KB
1702
1703config PAGE_SIZE_4KB
1704 bool "4kB"
315fe625 1705 depends on !CPU_LOONGSON2
1da177e4
LT
1706 help
1707 This option select the standard 4kB Linux page size. On some
1708 R3000-family processors this is the only available page size. Using
1709 4kB page size will minimize memory consumption and is therefore
1710 recommended for low memory systems.
1711
1712config PAGE_SIZE_8KB
1713 bool "8kB"
7d60717e 1714 depends on CPU_R8000 || CPU_CAVIUM_OCTEON
1da177e4
LT
1715 help
1716 Using 8kB page size will result in higher performance kernel at
1717 the price of higher memory consumption. This option is available
c52399be
RB
1718 only on R8000 and cnMIPS processors. Note that you will need a
1719 suitable Linux distribution to support this.
1da177e4
LT
1720
1721config PAGE_SIZE_16KB
1722 bool "16kB"
714bfad6 1723 depends on !CPU_R3000 && !CPU_TX39XX
1da177e4
LT
1724 help
1725 Using 16kB page size will result in higher performance kernel at
1726 the price of higher memory consumption. This option is available on
714bfad6
RB
1727 all non-R3000 family processors. Note that you will need a suitable
1728 Linux distribution to support this.
1da177e4 1729
c52399be
RB
1730config PAGE_SIZE_32KB
1731 bool "32kB"
1732 depends on CPU_CAVIUM_OCTEON
1733 help
1734 Using 32kB page size will result in higher performance kernel at
1735 the price of higher memory consumption. This option is available
1736 only on cnMIPS cores. Note that you will need a suitable Linux
1737 distribution to support this.
1738
1da177e4
LT
1739config PAGE_SIZE_64KB
1740 bool "64kB"
7d60717e 1741 depends on !CPU_R3000 && !CPU_TX39XX
1da177e4
LT
1742 help
1743 Using 64kB page size will result in higher performance kernel at
1744 the price of higher memory consumption. This option is available on
1745 all non-R3000 family processor. Not that at the time of this
714bfad6 1746 writing this option is still high experimental.
1da177e4
LT
1747
1748endchoice
1749
c9bace7c
DD
1750config FORCE_MAX_ZONEORDER
1751 int "Maximum zone order"
85f993b8
DD
1752 range 14 64 if HUGETLB_PAGE && PAGE_SIZE_64KB
1753 default "14" if HUGETLB_PAGE && PAGE_SIZE_64KB
1754 range 13 64 if HUGETLB_PAGE && PAGE_SIZE_32KB
1755 default "13" if HUGETLB_PAGE && PAGE_SIZE_32KB
1756 range 12 64 if HUGETLB_PAGE && PAGE_SIZE_16KB
1757 default "12" if HUGETLB_PAGE && PAGE_SIZE_16KB
c9bace7c
DD
1758 range 11 64
1759 default "11"
1760 help
1761 The kernel memory allocator divides physically contiguous memory
1762 blocks into "zones", where each zone is a power of two number of
1763 pages. This option selects the largest power of two that the kernel
1764 keeps in the memory allocator. If you need to allocate very large
1765 blocks of physically contiguous memory, then you may need to
1766 increase this value.
1767
1768 This config option is actually maximum order plus one. For example,
1769 a value of 11 means that the largest free memory block is 2^10 pages.
1770
1771 The page size is not necessarily 4KB. Keep this in mind
1772 when choosing a value for this option.
1773
0ab2b7d0
RG
1774config CEVT_GIC
1775 bool "Use GIC global counter for clock events"
1776 depends on IRQ_GIC && !(MIPS_SEAD3 || MIPS_MT_SMTC)
1777 help
1778 Use the GIC global counter for the clock events. The R4K clock
1779 event driver is always present, so if the platform ends up not
1780 detecting a GIC, it will fall back to the R4K timer for the
1781 generation of clock events.
1782
1da177e4
LT
1783config BOARD_SCACHE
1784 bool
1785
1786config IP22_CPU_SCACHE
1787 bool
1788 select BOARD_SCACHE
1789
9318c51a
CD
1790#
1791# Support for a MIPS32 / MIPS64 style S-caches
1792#
1793config MIPS_CPU_SCACHE
1794 bool
1795 select BOARD_SCACHE
1796
1da177e4
LT
1797config R5000_CPU_SCACHE
1798 bool
1799 select BOARD_SCACHE
1800
1801config RM7000_CPU_SCACHE
1802 bool
1803 select BOARD_SCACHE
1804
1805config SIBYTE_DMA_PAGEOPS
1806 bool "Use DMA to clear/copy pages"
1807 depends on CPU_SB1
1808 help
1809 Instead of using the CPU to zero and copy pages, use a Data Mover
1810 channel. These DMA channels are otherwise unused by the standard
1811 SiByte Linux port. Seems to give a small performance benefit.
1812
1813config CPU_HAS_PREFETCH
c8094b53 1814 bool
1da177e4 1815
3165c846
FF
1816config CPU_GENERIC_DUMP_TLB
1817 bool
1818 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
1819
91405eb6
FF
1820config CPU_R4K_FPU
1821 bool
1822 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1823
62cedc4f
FF
1824config CPU_R4K_CACHE_TLB
1825 bool
1826 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1827
340ee4b9
RB
1828choice
1829 prompt "MIPS MT options"
f41ae0b2
RB
1830
1831config MIPS_MT_DISABLED
1832 bool "Disable multithreading support."
1833 help
1834 Use this option if your workload can't take advantage of
1835 MIPS hardware multithreading support. On systems that don't have
1836 the option of an MT-enabled processor this option will be the only
1837 option in this menu.
340ee4b9 1838
59d6ab86
RB
1839config MIPS_MT_SMP
1840 bool "Use 1 TC on each available VPE for SMP"
f41ae0b2 1841 depends on SYS_SUPPORTS_MULTITHREADING
f7062ddb 1842 select CPU_MIPSR2_IRQ_VI
d725cf38 1843 select CPU_MIPSR2_IRQ_EI
f41ae0b2 1844 select MIPS_MT
41c594ab 1845 select SMP
0ab7aefc 1846 select SYS_SUPPORTS_SCHED_SMT if SMP
73b76c78 1847 select SYS_SUPPORTS_SMP
87353d8a 1848 select SMP_UP
399aaa25 1849 select MIPS_PERF_SHARED_TC_COUNTERS
f41ae0b2 1850 help
25f12b33
RB
1851 This is a kernel model which is known a VSMP but lately has been
1852 marketesed into SMVP.
1853 Virtual SMP uses the processor's VPEs to implement virtual
1854 processors. In currently available configuration of the 34K processor
1855 this allows for a dual processor. Both processors will share the same
1856 primary caches; each will obtain the half of the TLB for it's own
1857 exclusive use. For a layman this model can be described as similar to
1858 what Intel calls Hyperthreading.
1859
1860 For further information see http://www.linux-mips.org/wiki/34K#VSMP
41c594ab 1861
59d6ab86
RB
1862config MIPS_MT_SMTC
1863 bool "SMTC: Use all TCs on all VPEs for SMP"
1864 depends on CPU_MIPS32_R2
1865 #depends on CPU_MIPS64_R2 # once there is hardware ...
f41ae0b2
RB
1866 depends on SYS_SUPPORTS_MULTITHREADING
1867 select CPU_MIPSR2_IRQ_VI
d725cf38 1868 select CPU_MIPSR2_IRQ_EI
f41ae0b2 1869 select MIPS_MT
130e2fb7 1870 select NR_CPUS_DEFAULT_8
340ee4b9 1871 select SMP
73b76c78 1872 select SYS_SUPPORTS_SMP
87353d8a 1873 select SMP_UP
f41ae0b2 1874 help
59d6ab86
RB
1875 This is a kernel model which is known a SMTC or lately has been
1876 marketesed into SMVP.
25f12b33
RB
1877 is presenting the available TC's of the core as processors to Linux.
1878 On currently available 34K processors this means a Linux system will
1879 see up to 5 processors. The implementation of the SMTC kernel differs
1880 significantly from VSMP and cannot efficiently coexist in the same
1881 kernel binary so the choice between VSMP and SMTC is a compile time
1882 decision.
1883
1884 For further information see http://www.linux-mips.org/wiki/34K#SMTC
340ee4b9 1885
340ee4b9
RB
1886endchoice
1887
f41ae0b2
RB
1888config MIPS_MT
1889 bool
1890
0ab7aefc
RB
1891config SCHED_SMT
1892 bool "SMT (multithreading) scheduler support"
1893 depends on SYS_SUPPORTS_SCHED_SMT
1894 default n
1895 help
1896 SMT scheduler support improves the CPU scheduler's decision making
1897 when dealing with MIPS MT enabled cores at a cost of slightly
1898 increased overhead in some places. If unsure say N here.
1899
1900config SYS_SUPPORTS_SCHED_SMT
1901 bool
1902
f41ae0b2
RB
1903config SYS_SUPPORTS_MULTITHREADING
1904 bool
1905
f088fc84
RB
1906config MIPS_MT_FPAFF
1907 bool "Dynamic FPU affinity for FP-intensive threads"
f088fc84 1908 default y
07cc0c9e
RB
1909 depends on MIPS_MT_SMP || MIPS_MT_SMTC
1910
1911config MIPS_VPE_LOADER
1912 bool "VPE loader support."
704e6460 1913 depends on SYS_SUPPORTS_MULTITHREADING && MODULES
07cc0c9e
RB
1914 select CPU_MIPSR2_IRQ_VI
1915 select CPU_MIPSR2_IRQ_EI
07cc0c9e
RB
1916 select MIPS_MT
1917 help
1918 Includes a loader for loading an elf relocatable object
1919 onto another VPE and running it.
f088fc84 1920
0db34215
KK
1921config MIPS_MT_SMTC_IM_BACKSTOP
1922 bool "Use per-TC register bits as backstop for inhibited IM bits"
1923 depends on MIPS_MT_SMTC
8531a35e 1924 default n
0db34215
KK
1925 help
1926 To support multiple TC microthreads acting as "CPUs" within
1927 a VPE, VPE-wide interrupt mask bits must be specially manipulated
1928 during interrupt handling. To support legacy drivers and interrupt
1929 controller management code, SMTC has a "backstop" to track and
1930 if necessary restore the interrupt mask. This has some performance
8531a35e 1931 impact on interrupt service overhead.
0db34215 1932
f571eff0
KK
1933config MIPS_MT_SMTC_IRQAFF
1934 bool "Support IRQ affinity API"
1935 depends on MIPS_MT_SMTC
1936 default n
1937 help
1938 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
1939 for SMTC Linux kernel. Requires platform support, of which
1940 an example can be found in the MIPS kernel i8259 and Malta
8531a35e
KK
1941 platform code. Adds some overhead to interrupt dispatch, and
1942 should be used only if you know what you are doing.
f571eff0 1943
e01402b1
RB
1944config MIPS_VPE_LOADER_TOM
1945 bool "Load VPE program into memory hidden from linux"
1946 depends on MIPS_VPE_LOADER
1947 default y
1948 help
1949 The loader can use memory that is present but has been hidden from
1950 Linux using the kernel command line option "mem=xxMB". It's up to
1951 you to ensure the amount you put in the option and the space your
1952 program requires is less or equal to the amount physically present.
1953
1954# this should possibly be in drivers/char, but it is rather cpu related. Hmmm
1955config MIPS_VPE_APSP_API
5e83d430
RB
1956 bool "Enable support for AP/SP API (RTLX)"
1957 depends on MIPS_VPE_LOADER
1958 help
e01402b1 1959
4a16ff4c
RB
1960config MIPS_CMP
1961 bool "MIPS CMP framework support"
1962 depends on SYS_SUPPORTS_MIPS_CMP
85f32dbd 1963 select SMP
eb9b5141 1964 select SYNC_R4K
4a16ff4c
RB
1965 select SYS_SUPPORTS_SMP
1966 select SYS_SUPPORTS_SCHED_SMT if SMP
1967 select WEAK_ORDERING
1968 default n
1969 help
1970 This is a placeholder option for the GCMP work. It will need to
1971 be handled differently...
1972
1da177e4
LT
1973config SB1_PASS_1_WORKAROUNDS
1974 bool
1975 depends on CPU_SB1_PASS_1
1976 default y
1977
1978config SB1_PASS_2_WORKAROUNDS
1979 bool
1980 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
1981 default y
1982
1983config SB1_PASS_2_1_WORKAROUNDS
1984 bool
1985 depends on CPU_SB1 && CPU_SB1_PASS_2
1986 default y
1987
2235a54d 1988
1da177e4 1989config 64BIT_PHYS_ADDR
d806cb2b 1990 bool
1da177e4 1991
60ec6571 1992config ARCH_PHYS_ADDR_T_64BIT
1993 def_bool 64BIT_PHYS_ADDR
1994
9693a853
FBH
1995config CPU_HAS_SMARTMIPS
1996 depends on SYS_SUPPORTS_SMARTMIPS
1997 bool "Support for the SmartMIPS ASE"
1998 help
1999 SmartMIPS is a extension of the MIPS32 architecture aimed at
2000 increased security at both hardware and software level for
2001 smartcards. Enabling this option will allow proper use of the
2002 SmartMIPS instructions by Linux applications. However a kernel with
2003 this option will not work on a MIPS core without SmartMIPS core. If
2004 you don't know you probably don't have SmartMIPS and should say N
2005 here.
2006
bce86083
SH
2007config CPU_MICROMIPS
2008 depends on SYS_SUPPORTS_MICROMIPS
2009 bool "Build kernel using microMIPS ISA"
2010 help
2011 When this option is enabled the kernel will be built using the
2012 microMIPS ISA
2013
1da177e4 2014config CPU_HAS_WB
f7062ddb 2015 bool
e01402b1 2016
df0ac8a4
KC
2017config XKS01
2018 bool
2019
f41ae0b2
RB
2020#
2021# Vectored interrupt mode is an R2 feature
2022#
e01402b1 2023config CPU_MIPSR2_IRQ_VI
f41ae0b2 2024 bool
e01402b1 2025
f41ae0b2
RB
2026#
2027# Extended interrupt mode is an R2 feature
2028#
e01402b1 2029config CPU_MIPSR2_IRQ_EI
f41ae0b2 2030 bool
e01402b1 2031
1da177e4
LT
2032config CPU_HAS_SYNC
2033 bool
2034 depends on !CPU_R3000
2035 default y
2036
20d60d99
MR
2037#
2038# CPU non-features
2039#
2040config CPU_DADDI_WORKAROUNDS
2041 bool
2042
2043config CPU_R4000_WORKAROUNDS
2044 bool
2045 select CPU_R4400_WORKAROUNDS
2046
2047config CPU_R4400_WORKAROUNDS
2048 bool
2049
1da177e4
LT
2050#
2051# - Highmem only makes sense for the 32-bit kernel.
2052# - The current highmem code will only work properly on physically indexed
2053# caches such as R3000, SB1, R7000 or those that look like they're virtually
2054# indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2055# moment we protect the user and offer the highmem option only on machines
2056# where it's known to be safe. This will not offer highmem on a few systems
2057# such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2058# indexed CPUs but we're playing safe.
797798c1
RB
2059# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2060# know they might have memory configurations that could make use of highmem
2061# support.
1da177e4
LT
2062#
2063config HIGHMEM
2064 bool "High Memory Support"
797798c1
RB
2065 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
2066
2067config CPU_SUPPORTS_HIGHMEM
2068 bool
2069
2070config SYS_SUPPORTS_HIGHMEM
2071 bool
1da177e4 2072
9693a853
FBH
2073config SYS_SUPPORTS_SMARTMIPS
2074 bool
2075
a6a4834c
SH
2076config SYS_SUPPORTS_MICROMIPS
2077 bool
2078
b4819b59
YY
2079config ARCH_FLATMEM_ENABLE
2080 def_bool y
f133f22d 2081 depends on !NUMA && !CPU_LOONGSON2
b4819b59 2082
d8cb4e11
RB
2083config ARCH_DISCONTIGMEM_ENABLE
2084 bool
2085 default y if SGI_IP27
2086 help
3dde6ad8 2087 Say Y to support efficient handling of discontiguous physical memory,
d8cb4e11
RB
2088 for architectures which are either NUMA (Non-Uniform Memory Access)
2089 or have huge holes in the physical address space for other reasons.
2090 See <file:Documentation/vm/numa> for more.
2091
31473747
AN
2092config ARCH_SPARSEMEM_ENABLE
2093 bool
7de58fab 2094 select SPARSEMEM_STATIC
31473747 2095
d8cb4e11
RB
2096config NUMA
2097 bool "NUMA Support"
2098 depends on SYS_SUPPORTS_NUMA
2099 help
2100 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2101 Access). This option improves performance on systems with more
2102 than two nodes; on two node systems it is generally better to
2103 leave it disabled; on single node systems disable this option
2104 disabled.
2105
2106config SYS_SUPPORTS_NUMA
2107 bool
2108
c80d79d7
YG
2109config NODES_SHIFT
2110 int
2111 default "6"
2112 depends on NEED_MULTIPLE_NODES
2113
14f70012
DCZ
2114config HW_PERF_EVENTS
2115 bool "Enable hardware performance counter support for perf events"
4be3d2f3 2116 depends on PERF_EVENTS && !MIPS_MT_SMTC && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP)
14f70012
DCZ
2117 default y
2118 help
2119 Enable hardware performance counter support for perf events. If
2120 disabled, perf events will use software events only.
2121
b4819b59
YY
2122source "mm/Kconfig"
2123
1da177e4
LT
2124config SMP
2125 bool "Multi-Processing support"
e73ea273
RB
2126 depends on SYS_SUPPORTS_SMP
2127 help
1da177e4
LT
2128 This enables support for systems with more than one CPU. If you have
2129 a system with only one CPU, like most personal computers, say N. If
2130 you have a system with more than one CPU, say Y.
2131
2132 If you say N here, the kernel will run on single and multiprocessor
2133 machines, but will use only one CPU of a multiprocessor machine. If
2134 you say Y here, the kernel will run on many, but not all,
2135 singleprocessor machines. On a singleprocessor machine, the kernel
2136 will run faster if you say N here.
2137
2138 People using multiprocessor machines who say Y here should also say
2139 Y to "Enhanced Real Time Clock Support", below.
2140
03502faa
AB
2141 See also the SMP-HOWTO available at
2142 <http://www.tldp.org/docs.html#howto>.
1da177e4
LT
2143
2144 If you don't know what to do here, say N.
2145
87353d8a
RB
2146config SMP_UP
2147 bool
2148
4a16ff4c
RB
2149config SYS_SUPPORTS_MIPS_CMP
2150 bool
2151
e73ea273
RB
2152config SYS_SUPPORTS_SMP
2153 bool
2154
130e2fb7
RB
2155config NR_CPUS_DEFAULT_4
2156 bool
2157
2158config NR_CPUS_DEFAULT_8
2159 bool
2160
2161config NR_CPUS_DEFAULT_16
2162 bool
2163
2164config NR_CPUS_DEFAULT_32
2165 bool
2166
2167config NR_CPUS_DEFAULT_64
2168 bool
2169
1da177e4
LT
2170config NR_CPUS
2171 int "Maximum number of CPUs (2-64)"
c5eaff3e 2172 range 2 64
1da177e4 2173 depends on SMP
130e2fb7
RB
2174 default "4" if NR_CPUS_DEFAULT_4
2175 default "8" if NR_CPUS_DEFAULT_8
2176 default "16" if NR_CPUS_DEFAULT_16
2177 default "32" if NR_CPUS_DEFAULT_32
2178 default "64" if NR_CPUS_DEFAULT_64
1da177e4
LT
2179 help
2180 This allows you to specify the maximum number of CPUs which this
2181 kernel will support. The maximum supported value is 32 for 32-bit
2182 kernel and 64 for 64-bit kernels; the minimum value which makes
72ede9b1
AN
2183 sense is 1 for Qemu (useful only for kernel debugging purposes)
2184 and 2 for all others.
1da177e4
LT
2185
2186 This is purely to save memory - each supported CPU adds
72ede9b1
AN
2187 approximately eight kilobytes to the kernel image. For best
2188 performance should round up your number of processors to the next
2189 power of two.
1da177e4 2190
399aaa25
AC
2191config MIPS_PERF_SHARED_TC_COUNTERS
2192 bool
2193
1723b4a3
AN
2194#
2195# Timer Interrupt Frequency Configuration
2196#
2197
2198choice
2199 prompt "Timer frequency"
2200 default HZ_250
2201 help
2202 Allows the configuration of the timer frequency.
2203
2204 config HZ_48
0f873585 2205 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
1723b4a3
AN
2206
2207 config HZ_100
2208 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2209
2210 config HZ_128
2211 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2212
2213 config HZ_250
2214 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2215
2216 config HZ_256
2217 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2218
2219 config HZ_1000
2220 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2221
2222 config HZ_1024
2223 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2224
2225endchoice
2226
2227config SYS_SUPPORTS_48HZ
2228 bool
2229
2230config SYS_SUPPORTS_100HZ
2231 bool
2232
2233config SYS_SUPPORTS_128HZ
2234 bool
2235
2236config SYS_SUPPORTS_250HZ
2237 bool
2238
2239config SYS_SUPPORTS_256HZ
2240 bool
2241
2242config SYS_SUPPORTS_1000HZ
2243 bool
2244
2245config SYS_SUPPORTS_1024HZ
2246 bool
2247
2248config SYS_SUPPORTS_ARBIT_HZ
2249 bool
2250 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2251 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2252 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2253 !SYS_SUPPORTS_1024HZ
2254
2255config HZ
2256 int
2257 default 48 if HZ_48
2258 default 100 if HZ_100
2259 default 128 if HZ_128
2260 default 250 if HZ_250
2261 default 256 if HZ_256
2262 default 1000 if HZ_1000
2263 default 1024 if HZ_1024
2264
e80de850 2265source "kernel/Kconfig.preempt"
1da177e4 2266
ea6e942b 2267config KEXEC
7d60717e 2268 bool "Kexec system call"
ea6e942b
AN
2269 help
2270 kexec is a system call that implements the ability to shutdown your
2271 current kernel, and to start another kernel. It is like a reboot
3dde6ad8 2272 but it is independent of the system firmware. And like a reboot
ea6e942b
AN
2273 you can start any kernel with it, not just Linux.
2274
01dd2fbf 2275 The name comes from the similarity to the exec system call.
ea6e942b
AN
2276
2277 It is an ongoing process to be certain the hardware in a machine
2278 is properly shutdown, so do not be surprised if this code does not
bf220695
GU
2279 initially work for you. As of this writing the exact hardware
2280 interface is strongly in flux, so no good recommendation can be
2281 made.
ea6e942b 2282
7aa1c8f4
RB
2283config CRASH_DUMP
2284 bool "Kernel crash dumps"
2285 help
2286 Generate crash dump after being started by kexec.
2287 This should be normally only set in special crash dump kernels
2288 which are loaded in the main kernel with kexec-tools into
2289 a specially reserved region and then later executed after
2290 a crash by kdump/kexec. The crash dump kernel must be compiled
2291 to a memory address not used by the main kernel or firmware using
2292 PHYSICAL_START.
2293
2294config PHYSICAL_START
2295 hex "Physical address where the kernel is loaded"
2296 default "0xffffffff84000000" if 64BIT
2297 default "0x84000000" if 32BIT
2298 depends on CRASH_DUMP
2299 help
2300 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2301 If you plan to use kernel for capturing the crash dump change
2302 this value to start of the reserved region (the "X" value as
2303 specified in the "crashkernel=YM@XM" command line boot parameter
2304 passed to the panic-ed kernel).
2305
ea6e942b
AN
2306config SECCOMP
2307 bool "Enable seccomp to safely compute untrusted bytecode"
293c5bd1 2308 depends on PROC_FS
ea6e942b
AN
2309 default y
2310 help
2311 This kernel feature is useful for number crunching applications
2312 that may need to compute untrusted bytecode during their
2313 execution. By using pipes or other transports made available to
2314 the process as file descriptors supporting the read/write
2315 syscalls, it's possible to isolate those applications in
2316 their own address space using seccomp. Once seccomp is
2317 enabled via /proc/<pid>/seccomp, it cannot be disabled
2318 and the task is only allowed to execute a few safe syscalls
2319 defined by each seccomp mode.
2320
2321 If unsure, say Y. Only embedded should say N here.
2322
36ecafc5
GF
2323config CC_STACKPROTECTOR
2324 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
2325 help
2326 This option turns on the -fstack-protector GCC feature. This
2327 feature puts, at the beginning of functions, a canary value on
2328 the stack just before the return address, and validates
2329 the value just before actually returning. Stack based buffer
2330 overflows (that need to overwrite this return address) now also
2331 overwrite the canary, which gets detected and the attack is then
2332 neutralized via a kernel panic.
2333
2334 This feature requires gcc version 4.2 or above.
2335
597ce172
PB
2336config MIPS_O32_FP64_SUPPORT
2337 bool "Support for O32 binaries using 64-bit FP"
2338 depends on 32BIT || MIPS32_O32
2339 default y
2340 help
2341 When this is enabled, the kernel will support use of 64-bit floating
2342 point registers with binaries using the O32 ABI along with the
2343 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
2344 32-bit MIPS systems this support is at the cost of increasing the
2345 size and complexity of the compiled FPU emulator. Thus if you are
2346 running a MIPS32 system and know that none of your userland binaries
2347 will require 64-bit floating point, you may wish to reduce the size
2348 of your kernel & potentially improve FP emulation performance by
2349 saying N here.
2350
2351 If unsure, say Y.
2352
f2ffa5ab 2353config USE_OF
0b3e06fd 2354 bool
f2ffa5ab 2355 select OF
e6ce1324 2356 select OF_EARLY_FLATTREE
abd2363f 2357 select IRQ_DOMAIN
f2ffa5ab 2358
5e83d430
RB
2359endmenu
2360
1df0f0ff
AN
2361config LOCKDEP_SUPPORT
2362 bool
2363 default y
2364
2365config STACKTRACE_SUPPORT
2366 bool
2367 default y
2368
b6c3539b
RB
2369source "init/Kconfig"
2370
dc52ddc0
MH
2371source "kernel/Kconfig.freezer"
2372
1da177e4
LT
2373menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2374
5e83d430
RB
2375config HW_HAS_EISA
2376 bool
1da177e4
LT
2377config HW_HAS_PCI
2378 bool
2379
2380config PCI
2381 bool "Support for PCI controller"
2382 depends on HW_HAS_PCI
abb4ae46 2383 select PCI_DOMAINS
0f3b3956 2384 select NO_GENERIC_PCI_IOPORT_MAP
1da177e4
LT
2385 help
2386 Find out whether you have a PCI motherboard. PCI is the name of a
2387 bus system, i.e. the way the CPU talks to the other stuff inside
2388 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2389 say Y, otherwise N.
2390
1da177e4
LT
2391config PCI_DOMAINS
2392 bool
1da177e4
LT
2393
2394source "drivers/pci/Kconfig"
2395
3f787ca4
JG
2396source "drivers/pci/pcie/Kconfig"
2397
1da177e4
LT
2398#
2399# ISA support is now enabled via select. Too many systems still have the one
2400# or other ISA chip on the board that users don't know about so don't expect
2401# users to choose the right thing ...
2402#
2403config ISA
2404 bool
2405
2406config EISA
2407 bool "EISA support"
5e83d430 2408 depends on HW_HAS_EISA
1da177e4 2409 select ISA
aa414dff 2410 select GENERIC_ISA_DMA
1da177e4
LT
2411 ---help---
2412 The Extended Industry Standard Architecture (EISA) bus was
2413 developed as an open alternative to the IBM MicroChannel bus.
2414
2415 The EISA bus provided some of the features of the IBM MicroChannel
2416 bus while maintaining backward compatibility with cards made for
2417 the older ISA bus. The EISA bus saw limited use between 1988 and
2418 1995 when it was made obsolete by the PCI bus.
2419
2420 Say Y here if you are building a kernel for an EISA-based machine.
2421
2422 Otherwise, say N.
2423
2424source "drivers/eisa/Kconfig"
2425
2426config TC
2427 bool "TURBOchannel support"
2428 depends on MACH_DECSTATION
2429 help
50a23e6e
JM
2430 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2431 processors. TURBOchannel programming specifications are available
2432 at:
2433 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2434 and:
2435 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2436 Linux driver support status is documented at:
2437 <http://www.linux-mips.org/wiki/DECstation>
1da177e4 2438
1da177e4
LT
2439config MMU
2440 bool
2441 default y
2442
d865bea4
RB
2443config I8253
2444 bool
798778b8 2445 select CLKSRC_I8253
2d02612f 2446 select CLKEVT_I8253
9726b43a 2447 select MIPS_EXTERNAL_TIMER
d865bea4 2448
e05eb3f8
RB
2449config ZONE_DMA
2450 bool
2451
cce335ae
RB
2452config ZONE_DMA32
2453 bool
2454
1da177e4
LT
2455source "drivers/pcmcia/Kconfig"
2456
2457source "drivers/pci/hotplug/Kconfig"
2458
388b78ad
AB
2459config RAPIDIO
2460 bool "RapidIO support"
2461 depends on PCI
2462 default n
2463 help
2464 If you say Y here, the kernel will include drivers and
2465 infrastructure code to support RapidIO interconnect devices.
2466
2467source "drivers/rapidio/Kconfig"
2468
1da177e4
LT
2469endmenu
2470
2471menu "Executable file formats"
2472
2473source "fs/Kconfig.binfmt"
2474
2475config TRAD_SIGNALS
2476 bool
1da177e4 2477
1da177e4
LT
2478config MIPS32_COMPAT
2479 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
875d43e7 2480 depends on 64BIT
1da177e4
LT
2481 help
2482 Select this option if you want Linux/MIPS 32-bit binary
2483 compatibility. Since all software available for Linux/MIPS is
2484 currently 32-bit you should say Y here.
2485
2486config COMPAT
2487 bool
2488 depends on MIPS32_COMPAT
48b25c43 2489 select ARCH_WANT_OLD_COMPAT_IPC
1da177e4
LT
2490 default y
2491
05e43966
AN
2492config SYSVIPC_COMPAT
2493 bool
2494 depends on COMPAT && SYSVIPC
2495 default y
2496
1da177e4
LT
2497config MIPS32_O32
2498 bool "Kernel support for o32 binaries"
2499 depends on MIPS32_COMPAT
2500 help
2501 Select this option if you want to run o32 binaries. These are pure
2502 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2503 existing binaries are in this format.
2504
2505 If unsure, say Y.
2506
2507config MIPS32_N32
2508 bool "Kernel support for n32 binaries"
2509 depends on MIPS32_COMPAT
2510 help
2511 Select this option if you want to run n32 binaries. These are
2512 64-bit binaries using 32-bit quantities for addressing and certain
2513 data that would normally be 64-bit. They are used in special
2514 cases.
2515
2516 If unsure, say N.
2517
2518config BINFMT_ELF32
2519 bool
2520 default y if MIPS32_O32 || MIPS32_N32
2521
2116245e
RB
2522endmenu
2523
2524menu "Power management options"
2525
363c55ca
WZ
2526config ARCH_HIBERNATION_POSSIBLE
2527 def_bool y
3f5b3e17 2528 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
363c55ca 2529
f4cb5700
JB
2530config ARCH_SUSPEND_POSSIBLE
2531 def_bool y
3f5b3e17 2532 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
f4cb5700 2533
2116245e 2534source "kernel/power/Kconfig"
952fa954 2535
1da177e4
LT
2536endmenu
2537
7a998935
VK
2538config MIPS_EXTERNAL_TIMER
2539 bool
2540
2541if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
2542menu "CPU Power Management"
2543source "drivers/cpufreq/Kconfig"
2544endmenu
2545endif
9726b43a 2546
d5950b43
SR
2547source "net/Kconfig"
2548
1da177e4
LT
2549source "drivers/Kconfig"
2550
98cdee0e
RB
2551source "drivers/firmware/Kconfig"
2552
1da177e4
LT
2553source "fs/Kconfig"
2554
2555source "arch/mips/Kconfig.debug"
2556
2557source "security/Kconfig"
2558
2559source "crypto/Kconfig"
2560
2561source "lib/Kconfig"
2235a54d
SL
2562
2563source "arch/mips/kvm/Kconfig"