Bury the conditionals from kernel_thread/kernel_execve series
[deliverable/linux.git] / arch / mips / Kconfig
1 config MIPS
2 bool
3 default y
4 select HAVE_GENERIC_DMA_COHERENT
5 select HAVE_IDE
6 select HAVE_OPROFILE
7 select HAVE_IRQ_WORK
8 select HAVE_PERF_EVENTS
9 select PERF_USE_VMALLOC
10 select HAVE_ARCH_KGDB
11 select ARCH_HAVE_CUSTOM_GPIO_H
12 select HAVE_FUNCTION_TRACER
13 select HAVE_FUNCTION_TRACE_MCOUNT_TEST
14 select HAVE_DYNAMIC_FTRACE
15 select HAVE_FTRACE_MCOUNT_RECORD
16 select HAVE_C_RECORDMCOUNT
17 select HAVE_FUNCTION_GRAPH_TRACER
18 select HAVE_KPROBES
19 select HAVE_KRETPROBES
20 select HAVE_DEBUG_KMEMLEAK
21 select ARCH_BINFMT_ELF_RANDOMIZE_PIE
22 select RTC_LIB if !MACH_LOONGSON
23 select GENERIC_ATOMIC64 if !64BIT
24 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
25 select HAVE_DMA_ATTRS
26 select HAVE_DMA_API_DEBUG
27 select HAVE_GENERIC_HARDIRQS
28 select GENERIC_IRQ_PROBE
29 select GENERIC_IRQ_SHOW
30 select HAVE_ARCH_JUMP_LABEL
31 select ARCH_WANT_IPC_PARSE_VERSION
32 select IRQ_FORCED_THREADING
33 select HAVE_MEMBLOCK
34 select HAVE_MEMBLOCK_NODE_MAP
35 select ARCH_DISCARD_MEMBLOCK
36 select GENERIC_SMP_IDLE_THREAD
37 select BUILDTIME_EXTABLE_SORT
38 select GENERIC_CLOCKEVENTS
39 select GENERIC_CMOS_UPDATE
40 select HAVE_MOD_ARCH_SPECIFIC
41 select MODULES_USE_ELF_REL
42 select MODULES_USE_ELF_RELA if 64BIT
43
44 menu "Machine selection"
45
46 config ZONE_DMA
47 bool
48
49 choice
50 prompt "System type"
51 default SGI_IP22
52
53 config MIPS_ALCHEMY
54 bool "Alchemy processor based machines"
55 select 64BIT_PHYS_ADDR
56 select CEVT_R4K_LIB
57 select CSRC_R4K_LIB
58 select IRQ_CPU
59 select SYS_HAS_CPU_MIPS32_R1
60 select SYS_SUPPORTS_32BIT_KERNEL
61 select SYS_SUPPORTS_APM_EMULATION
62 select GENERIC_GPIO
63 select ARCH_WANT_OPTIONAL_GPIOLIB
64 select SYS_SUPPORTS_ZBOOT
65 select USB_ARCH_HAS_OHCI
66 select USB_ARCH_HAS_EHCI
67
68 config AR7
69 bool "Texas Instruments AR7"
70 select BOOT_ELF32
71 select DMA_NONCOHERENT
72 select CEVT_R4K
73 select CSRC_R4K
74 select IRQ_CPU
75 select NO_EXCEPT_FILL
76 select SWAP_IO_SPACE
77 select SYS_HAS_CPU_MIPS32_R1
78 select SYS_HAS_EARLY_PRINTK
79 select SYS_SUPPORTS_32BIT_KERNEL
80 select SYS_SUPPORTS_LITTLE_ENDIAN
81 select SYS_SUPPORTS_ZBOOT_UART16550
82 select ARCH_REQUIRE_GPIOLIB
83 select VLYNQ
84 select HAVE_CLK
85 help
86 Support for the Texas Instruments AR7 System-on-a-Chip
87 family: TNETD7100, 7200 and 7300.
88
89 config ATH79
90 bool "Atheros AR71XX/AR724X/AR913X based boards"
91 select ARCH_REQUIRE_GPIOLIB
92 select BOOT_RAW
93 select CEVT_R4K
94 select CSRC_R4K
95 select DMA_NONCOHERENT
96 select HAVE_CLK
97 select IRQ_CPU
98 select MIPS_MACHINE
99 select SYS_HAS_CPU_MIPS32_R2
100 select SYS_HAS_EARLY_PRINTK
101 select SYS_SUPPORTS_32BIT_KERNEL
102 select SYS_SUPPORTS_BIG_ENDIAN
103 help
104 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
105
106 config BCM47XX
107 bool "Broadcom BCM47XX based boards"
108 select CEVT_R4K
109 select CSRC_R4K
110 select DMA_NONCOHERENT
111 select HW_HAS_PCI
112 select IRQ_CPU
113 select SYS_SUPPORTS_32BIT_KERNEL
114 select SYS_SUPPORTS_LITTLE_ENDIAN
115 select GENERIC_GPIO
116 select SYS_HAS_EARLY_PRINTK
117 select CFE
118 help
119 Support for BCM47XX based boards
120
121 config BCM63XX
122 bool "Broadcom BCM63XX based boards"
123 select CEVT_R4K
124 select CSRC_R4K
125 select DMA_NONCOHERENT
126 select IRQ_CPU
127 select SYS_HAS_CPU_MIPS32_R1
128 select SYS_SUPPORTS_32BIT_KERNEL
129 select SYS_SUPPORTS_BIG_ENDIAN
130 select SYS_HAS_EARLY_PRINTK
131 select SWAP_IO_SPACE
132 select ARCH_REQUIRE_GPIOLIB
133 select HAVE_CLK
134 help
135 Support for BCM63XX based boards
136
137 config MIPS_COBALT
138 bool "Cobalt Server"
139 select CEVT_R4K
140 select CSRC_R4K
141 select CEVT_GT641XX
142 select DMA_NONCOHERENT
143 select HW_HAS_PCI
144 select I8253
145 select I8259
146 select IRQ_CPU
147 select IRQ_GT641XX
148 select PCI_GT64XXX_PCI0
149 select PCI
150 select SYS_HAS_CPU_NEVADA
151 select SYS_HAS_EARLY_PRINTK
152 select SYS_SUPPORTS_32BIT_KERNEL
153 select SYS_SUPPORTS_64BIT_KERNEL
154 select SYS_SUPPORTS_LITTLE_ENDIAN
155
156 config MACH_DECSTATION
157 bool "DECstations"
158 select BOOT_ELF32
159 select CEVT_DS1287
160 select CEVT_R4K
161 select CSRC_IOASIC
162 select CSRC_R4K
163 select CPU_DADDI_WORKAROUNDS if 64BIT
164 select CPU_R4000_WORKAROUNDS if 64BIT
165 select CPU_R4400_WORKAROUNDS if 64BIT
166 select DMA_NONCOHERENT
167 select NO_IOPORT
168 select IRQ_CPU
169 select SYS_HAS_CPU_R3000
170 select SYS_HAS_CPU_R4X00
171 select SYS_SUPPORTS_32BIT_KERNEL
172 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
173 select SYS_SUPPORTS_LITTLE_ENDIAN
174 select SYS_SUPPORTS_128HZ
175 select SYS_SUPPORTS_256HZ
176 select SYS_SUPPORTS_1024HZ
177 help
178 This enables support for DEC's MIPS based workstations. For details
179 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
180 DECstation porting pages on <http://decstation.unix-ag.org/>.
181
182 If you have one of the following DECstation Models you definitely
183 want to choose R4xx0 for the CPU Type:
184
185 DECstation 5000/50
186 DECstation 5000/150
187 DECstation 5000/260
188 DECsystem 5900/260
189
190 otherwise choose R3000.
191
192 config MACH_JAZZ
193 bool "Jazz family of machines"
194 select ARC
195 select ARC32
196 select ARCH_MAY_HAVE_PC_FDC
197 select CEVT_R4K
198 select CSRC_R4K
199 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
200 select GENERIC_ISA_DMA
201 select HAVE_PCSPKR_PLATFORM
202 select IRQ_CPU
203 select I8253
204 select I8259
205 select ISA
206 select SYS_HAS_CPU_R4X00
207 select SYS_SUPPORTS_32BIT_KERNEL
208 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
209 select SYS_SUPPORTS_100HZ
210 help
211 This a family of machines based on the MIPS R4030 chipset which was
212 used by several vendors to build RISC/os and Windows NT workstations.
213 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
214 Olivetti M700-10 workstations.
215
216 config MACH_JZ4740
217 bool "Ingenic JZ4740 based machines"
218 select SYS_HAS_CPU_MIPS32_R1
219 select SYS_SUPPORTS_32BIT_KERNEL
220 select SYS_SUPPORTS_LITTLE_ENDIAN
221 select SYS_SUPPORTS_ZBOOT_UART16550
222 select DMA_NONCOHERENT
223 select IRQ_CPU
224 select GENERIC_GPIO
225 select ARCH_REQUIRE_GPIOLIB
226 select SYS_HAS_EARLY_PRINTK
227 select HAVE_PWM
228 select HAVE_CLK
229 select GENERIC_IRQ_CHIP
230
231 config LANTIQ
232 bool "Lantiq based platforms"
233 select DMA_NONCOHERENT
234 select IRQ_CPU
235 select CEVT_R4K
236 select CSRC_R4K
237 select SYS_HAS_CPU_MIPS32_R1
238 select SYS_HAS_CPU_MIPS32_R2
239 select SYS_SUPPORTS_BIG_ENDIAN
240 select SYS_SUPPORTS_32BIT_KERNEL
241 select SYS_SUPPORTS_MULTITHREADING
242 select SYS_HAS_EARLY_PRINTK
243 select ARCH_REQUIRE_GPIOLIB
244 select SWAP_IO_SPACE
245 select BOOT_RAW
246 select HAVE_MACH_CLKDEV
247 select CLKDEV_LOOKUP
248 select USE_OF
249 select PINCTRL
250 select PINCTRL_LANTIQ
251
252 config LASAT
253 bool "LASAT Networks platforms"
254 select CEVT_R4K
255 select CSRC_R4K
256 select DMA_NONCOHERENT
257 select SYS_HAS_EARLY_PRINTK
258 select HW_HAS_PCI
259 select IRQ_CPU
260 select PCI_GT64XXX_PCI0
261 select MIPS_NILE4
262 select R5000_CPU_SCACHE
263 select SYS_HAS_CPU_R5000
264 select SYS_SUPPORTS_32BIT_KERNEL
265 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
266 select SYS_SUPPORTS_LITTLE_ENDIAN
267
268 config MACH_LOONGSON
269 bool "Loongson family of machines"
270 select SYS_SUPPORTS_ZBOOT
271 help
272 This enables the support of Loongson family of machines.
273
274 Loongson is a family of general-purpose MIPS-compatible CPUs.
275 developed at Institute of Computing Technology (ICT),
276 Chinese Academy of Sciences (CAS) in the People's Republic
277 of China. The chief architect is Professor Weiwu Hu.
278
279 config MACH_LOONGSON1
280 bool "Loongson 1 family of machines"
281 select SYS_SUPPORTS_ZBOOT
282 help
283 This enables support for the Loongson 1 based machines.
284
285 Loongson 1 is a family of 32-bit MIPS-compatible SoCs developed by
286 the ICT (Institute of Computing Technology) and the Chinese Academy
287 of Sciences.
288
289 config MIPS_MALTA
290 bool "MIPS Malta board"
291 select ARCH_MAY_HAVE_PC_FDC
292 select BOOT_ELF32
293 select BOOT_RAW
294 select CEVT_R4K
295 select CSRC_R4K
296 select DMA_NONCOHERENT
297 select GENERIC_ISA_DMA
298 select HAVE_PCSPKR_PLATFORM
299 select IRQ_CPU
300 select IRQ_GIC
301 select HW_HAS_PCI
302 select I8253
303 select I8259
304 select MIPS_BOARDS_GEN
305 select MIPS_BONITO64
306 select MIPS_CPU_SCACHE
307 select PCI_GT64XXX_PCI0
308 select MIPS_MSC
309 select SWAP_IO_SPACE
310 select SYS_HAS_CPU_MIPS32_R1
311 select SYS_HAS_CPU_MIPS32_R2
312 select SYS_HAS_CPU_MIPS64_R1
313 select SYS_HAS_CPU_MIPS64_R2
314 select SYS_HAS_CPU_NEVADA
315 select SYS_HAS_CPU_RM7000
316 select SYS_HAS_EARLY_PRINTK
317 select SYS_SUPPORTS_32BIT_KERNEL
318 select SYS_SUPPORTS_64BIT_KERNEL
319 select SYS_SUPPORTS_BIG_ENDIAN
320 select SYS_SUPPORTS_LITTLE_ENDIAN
321 select SYS_SUPPORTS_MIPS_CMP
322 select SYS_SUPPORTS_MULTITHREADING
323 select SYS_SUPPORTS_SMARTMIPS
324 select SYS_SUPPORTS_ZBOOT
325 help
326 This enables support for the MIPS Technologies Malta evaluation
327 board.
328
329 config MIPS_SEAD3
330 bool "MIPS SEAD3 board"
331 select BOOT_ELF32
332 select BOOT_RAW
333 select CEVT_R4K
334 select CSRC_R4K
335 select CPU_MIPSR2_IRQ_VI
336 select CPU_MIPSR2_IRQ_EI
337 select DMA_NONCOHERENT
338 select IRQ_CPU
339 select IRQ_GIC
340 select MIPS_BOARDS_GEN
341 select MIPS_CPU_SCACHE
342 select MIPS_MSC
343 select SYS_HAS_CPU_MIPS32_R1
344 select SYS_HAS_CPU_MIPS32_R2
345 select SYS_HAS_CPU_MIPS64_R1
346 select SYS_HAS_EARLY_PRINTK
347 select SYS_SUPPORTS_32BIT_KERNEL
348 select SYS_SUPPORTS_64BIT_KERNEL
349 select SYS_SUPPORTS_BIG_ENDIAN
350 select SYS_SUPPORTS_LITTLE_ENDIAN
351 select SYS_SUPPORTS_SMARTMIPS
352 select USB_ARCH_HAS_EHCI
353 select USB_EHCI_BIG_ENDIAN_DESC
354 select USB_EHCI_BIG_ENDIAN_MMIO
355 help
356 This enables support for the MIPS Technologies SEAD3 evaluation
357 board.
358
359 config NEC_MARKEINS
360 bool "NEC EMMA2RH Mark-eins board"
361 select SOC_EMMA2RH
362 select HW_HAS_PCI
363 help
364 This enables support for the NEC Electronics Mark-eins boards.
365
366 config MACH_VR41XX
367 bool "NEC VR4100 series based machines"
368 select CEVT_R4K
369 select CSRC_R4K
370 select SYS_HAS_CPU_VR41XX
371 select ARCH_REQUIRE_GPIOLIB
372
373 config NXP_STB220
374 bool "NXP STB220 board"
375 select SOC_PNX833X
376 help
377 Support for NXP Semiconductors STB220 Development Board.
378
379 config NXP_STB225
380 bool "NXP 225 board"
381 select SOC_PNX833X
382 select SOC_PNX8335
383 help
384 Support for NXP Semiconductors STB225 Development Board.
385
386 config PNX8550_JBS
387 bool "NXP PNX8550 based JBS board"
388 select PNX8550
389 select SYS_SUPPORTS_LITTLE_ENDIAN
390
391 config PNX8550_STB810
392 bool "NXP PNX8550 based STB810 board"
393 select PNX8550
394 select SYS_SUPPORTS_LITTLE_ENDIAN
395
396 config PMC_MSP
397 bool "PMC-Sierra MSP chipsets"
398 depends on EXPERIMENTAL
399 select CEVT_R4K
400 select CSRC_R4K
401 select DMA_NONCOHERENT
402 select SWAP_IO_SPACE
403 select NO_EXCEPT_FILL
404 select BOOT_RAW
405 select SYS_HAS_CPU_MIPS32_R1
406 select SYS_HAS_CPU_MIPS32_R2
407 select SYS_SUPPORTS_32BIT_KERNEL
408 select SYS_SUPPORTS_BIG_ENDIAN
409 select IRQ_CPU
410 select SERIAL_8250
411 select SERIAL_8250_CONSOLE
412 help
413 This adds support for the PMC-Sierra family of Multi-Service
414 Processor System-On-A-Chips. These parts include a number
415 of integrated peripherals, interfaces and DSPs in addition to
416 a variety of MIPS cores.
417
418 config PMC_YOSEMITE
419 bool "PMC-Sierra Yosemite eval board"
420 select CEVT_R4K
421 select CSRC_R4K
422 select DMA_COHERENT
423 select HW_HAS_PCI
424 select IRQ_CPU
425 select IRQ_CPU_RM7K
426 select IRQ_CPU_RM9K
427 select SWAP_IO_SPACE
428 select SYS_HAS_CPU_RM9000
429 select SYS_HAS_EARLY_PRINTK
430 select SYS_SUPPORTS_32BIT_KERNEL
431 select SYS_SUPPORTS_64BIT_KERNEL
432 select SYS_SUPPORTS_BIG_ENDIAN
433 select SYS_SUPPORTS_HIGHMEM
434 select SYS_SUPPORTS_SMP
435 help
436 Yosemite is an evaluation board for the RM9000x2 processor
437 manufactured by PMC-Sierra.
438
439 config POWERTV
440 bool "Cisco PowerTV"
441 select BOOT_ELF32
442 select CEVT_R4K
443 select CPU_MIPSR2_IRQ_VI
444 select CPU_MIPSR2_IRQ_EI
445 select CSRC_POWERTV
446 select DMA_NONCOHERENT
447 select HW_HAS_PCI
448 select SYS_HAS_EARLY_PRINTK
449 select SYS_HAS_CPU_MIPS32_R2
450 select SYS_SUPPORTS_32BIT_KERNEL
451 select SYS_SUPPORTS_BIG_ENDIAN
452 select SYS_SUPPORTS_HIGHMEM
453 select USB_OHCI_LITTLE_ENDIAN
454 help
455 This enables support for the Cisco PowerTV Platform.
456
457 config SGI_IP22
458 bool "SGI IP22 (Indy/Indigo2)"
459 select ARC
460 select ARC32
461 select BOOT_ELF32
462 select CEVT_R4K
463 select CSRC_R4K
464 select DEFAULT_SGI_PARTITION
465 select DMA_NONCOHERENT
466 select HW_HAS_EISA
467 select I8253
468 select I8259
469 select IP22_CPU_SCACHE
470 select IRQ_CPU
471 select GENERIC_ISA_DMA_SUPPORT_BROKEN
472 select SGI_HAS_I8042
473 select SGI_HAS_INDYDOG
474 select SGI_HAS_HAL2
475 select SGI_HAS_SEEQ
476 select SGI_HAS_WD93
477 select SGI_HAS_ZILOG
478 select SWAP_IO_SPACE
479 select SYS_HAS_CPU_R4X00
480 select SYS_HAS_CPU_R5000
481 #
482 # Disable EARLY_PRINTK for now since it leads to overwritten prom
483 # memory during early boot on some machines.
484 #
485 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
486 # for a more details discussion
487 #
488 # select SYS_HAS_EARLY_PRINTK
489 select SYS_SUPPORTS_32BIT_KERNEL
490 select SYS_SUPPORTS_64BIT_KERNEL
491 select SYS_SUPPORTS_BIG_ENDIAN
492 help
493 This are the SGI Indy, Challenge S and Indigo2, as well as certain
494 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
495 that runs on these, say Y here.
496
497 config SGI_IP27
498 bool "SGI IP27 (Origin200/2000)"
499 select ARC
500 select ARC64
501 select BOOT_ELF64
502 select DEFAULT_SGI_PARTITION
503 select DMA_COHERENT
504 select SYS_HAS_EARLY_PRINTK
505 select HW_HAS_PCI
506 select NR_CPUS_DEFAULT_64
507 select SYS_HAS_CPU_R10000
508 select SYS_SUPPORTS_64BIT_KERNEL
509 select SYS_SUPPORTS_BIG_ENDIAN
510 select SYS_SUPPORTS_NUMA
511 select SYS_SUPPORTS_SMP
512 help
513 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
514 workstations. To compile a Linux kernel that runs on these, say Y
515 here.
516
517 config SGI_IP28
518 bool "SGI IP28 (Indigo2 R10k) (EXPERIMENTAL)"
519 depends on EXPERIMENTAL
520 select ARC
521 select ARC64
522 select BOOT_ELF64
523 select CEVT_R4K
524 select CSRC_R4K
525 select DEFAULT_SGI_PARTITION
526 select DMA_NONCOHERENT
527 select GENERIC_ISA_DMA_SUPPORT_BROKEN
528 select IRQ_CPU
529 select HW_HAS_EISA
530 select I8253
531 select I8259
532 select SGI_HAS_I8042
533 select SGI_HAS_INDYDOG
534 select SGI_HAS_HAL2
535 select SGI_HAS_SEEQ
536 select SGI_HAS_WD93
537 select SGI_HAS_ZILOG
538 select SWAP_IO_SPACE
539 select SYS_HAS_CPU_R10000
540 #
541 # Disable EARLY_PRINTK for now since it leads to overwritten prom
542 # memory during early boot on some machines.
543 #
544 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
545 # for a more details discussion
546 #
547 # select SYS_HAS_EARLY_PRINTK
548 select SYS_SUPPORTS_64BIT_KERNEL
549 select SYS_SUPPORTS_BIG_ENDIAN
550 help
551 This is the SGI Indigo2 with R10000 processor. To compile a Linux
552 kernel that runs on these, say Y here.
553
554 config SGI_IP32
555 bool "SGI IP32 (O2)"
556 select ARC
557 select ARC32
558 select BOOT_ELF32
559 select CEVT_R4K
560 select CSRC_R4K
561 select DMA_NONCOHERENT
562 select HW_HAS_PCI
563 select IRQ_CPU
564 select R5000_CPU_SCACHE
565 select RM7000_CPU_SCACHE
566 select SYS_HAS_CPU_R5000
567 select SYS_HAS_CPU_R10000 if BROKEN
568 select SYS_HAS_CPU_RM7000
569 select SYS_HAS_CPU_NEVADA
570 select SYS_SUPPORTS_64BIT_KERNEL
571 select SYS_SUPPORTS_BIG_ENDIAN
572 help
573 If you want this kernel to run on SGI O2 workstation, say Y here.
574
575 config SIBYTE_CRHINE
576 bool "Sibyte BCM91120C-CRhine"
577 depends on EXPERIMENTAL
578 select BOOT_ELF32
579 select DMA_COHERENT
580 select SIBYTE_BCM1120
581 select SWAP_IO_SPACE
582 select SYS_HAS_CPU_SB1
583 select SYS_SUPPORTS_BIG_ENDIAN
584 select SYS_SUPPORTS_LITTLE_ENDIAN
585
586 config SIBYTE_CARMEL
587 bool "Sibyte BCM91120x-Carmel"
588 depends on EXPERIMENTAL
589 select BOOT_ELF32
590 select DMA_COHERENT
591 select SIBYTE_BCM1120
592 select SWAP_IO_SPACE
593 select SYS_HAS_CPU_SB1
594 select SYS_SUPPORTS_BIG_ENDIAN
595 select SYS_SUPPORTS_LITTLE_ENDIAN
596
597 config SIBYTE_CRHONE
598 bool "Sibyte BCM91125C-CRhone"
599 depends on EXPERIMENTAL
600 select BOOT_ELF32
601 select DMA_COHERENT
602 select SIBYTE_BCM1125
603 select SWAP_IO_SPACE
604 select SYS_HAS_CPU_SB1
605 select SYS_SUPPORTS_BIG_ENDIAN
606 select SYS_SUPPORTS_HIGHMEM
607 select SYS_SUPPORTS_LITTLE_ENDIAN
608
609 config SIBYTE_RHONE
610 bool "Sibyte BCM91125E-Rhone"
611 depends on EXPERIMENTAL
612 select BOOT_ELF32
613 select DMA_COHERENT
614 select SIBYTE_BCM1125H
615 select SWAP_IO_SPACE
616 select SYS_HAS_CPU_SB1
617 select SYS_SUPPORTS_BIG_ENDIAN
618 select SYS_SUPPORTS_LITTLE_ENDIAN
619
620 config SIBYTE_SWARM
621 bool "Sibyte BCM91250A-SWARM"
622 select BOOT_ELF32
623 select DMA_COHERENT
624 select HAVE_PATA_PLATFORM
625 select NR_CPUS_DEFAULT_2
626 select SIBYTE_SB1250
627 select SWAP_IO_SPACE
628 select SYS_HAS_CPU_SB1
629 select SYS_SUPPORTS_BIG_ENDIAN
630 select SYS_SUPPORTS_HIGHMEM
631 select SYS_SUPPORTS_LITTLE_ENDIAN
632 select ZONE_DMA32 if 64BIT
633
634 config SIBYTE_LITTLESUR
635 bool "Sibyte BCM91250C2-LittleSur"
636 depends on EXPERIMENTAL
637 select BOOT_ELF32
638 select DMA_COHERENT
639 select HAVE_PATA_PLATFORM
640 select NR_CPUS_DEFAULT_2
641 select SIBYTE_SB1250
642 select SWAP_IO_SPACE
643 select SYS_HAS_CPU_SB1
644 select SYS_SUPPORTS_BIG_ENDIAN
645 select SYS_SUPPORTS_HIGHMEM
646 select SYS_SUPPORTS_LITTLE_ENDIAN
647
648 config SIBYTE_SENTOSA
649 bool "Sibyte BCM91250E-Sentosa"
650 depends on EXPERIMENTAL
651 select BOOT_ELF32
652 select DMA_COHERENT
653 select NR_CPUS_DEFAULT_2
654 select SIBYTE_SB1250
655 select SWAP_IO_SPACE
656 select SYS_HAS_CPU_SB1
657 select SYS_SUPPORTS_BIG_ENDIAN
658 select SYS_SUPPORTS_LITTLE_ENDIAN
659
660 config SIBYTE_BIGSUR
661 bool "Sibyte BCM91480B-BigSur"
662 select BOOT_ELF32
663 select DMA_COHERENT
664 select NR_CPUS_DEFAULT_4
665 select SIBYTE_BCM1x80
666 select SWAP_IO_SPACE
667 select SYS_HAS_CPU_SB1
668 select SYS_SUPPORTS_BIG_ENDIAN
669 select SYS_SUPPORTS_HIGHMEM
670 select SYS_SUPPORTS_LITTLE_ENDIAN
671 select ZONE_DMA32 if 64BIT
672
673 config SNI_RM
674 bool "SNI RM200/300/400"
675 select ARC if CPU_LITTLE_ENDIAN
676 select ARC32 if CPU_LITTLE_ENDIAN
677 select SNIPROM if CPU_BIG_ENDIAN
678 select ARCH_MAY_HAVE_PC_FDC
679 select BOOT_ELF32
680 select CEVT_R4K
681 select CSRC_R4K
682 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
683 select DMA_NONCOHERENT
684 select GENERIC_ISA_DMA
685 select HAVE_PCSPKR_PLATFORM
686 select HW_HAS_EISA
687 select HW_HAS_PCI
688 select IRQ_CPU
689 select I8253
690 select I8259
691 select ISA
692 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
693 select SYS_HAS_CPU_R4X00
694 select SYS_HAS_CPU_R5000
695 select SYS_HAS_CPU_R10000
696 select R5000_CPU_SCACHE
697 select SYS_HAS_EARLY_PRINTK
698 select SYS_SUPPORTS_32BIT_KERNEL
699 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
700 select SYS_SUPPORTS_BIG_ENDIAN
701 select SYS_SUPPORTS_HIGHMEM
702 select SYS_SUPPORTS_LITTLE_ENDIAN
703 help
704 The SNI RM200/300/400 are MIPS-based machines manufactured by
705 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
706 Technology and now in turn merged with Fujitsu. Say Y here to
707 support this machine type.
708
709 config MACH_TX39XX
710 bool "Toshiba TX39 series based machines"
711
712 config MACH_TX49XX
713 bool "Toshiba TX49 series based machines"
714
715 config MIKROTIK_RB532
716 bool "Mikrotik RB532 boards"
717 select CEVT_R4K
718 select CSRC_R4K
719 select DMA_NONCOHERENT
720 select HW_HAS_PCI
721 select IRQ_CPU
722 select SYS_HAS_CPU_MIPS32_R1
723 select SYS_SUPPORTS_32BIT_KERNEL
724 select SYS_SUPPORTS_LITTLE_ENDIAN
725 select SWAP_IO_SPACE
726 select BOOT_RAW
727 select ARCH_REQUIRE_GPIOLIB
728 help
729 Support the Mikrotik(tm) RouterBoard 532 series,
730 based on the IDT RC32434 SoC.
731
732 config WR_PPMC
733 bool "Wind River PPMC board"
734 select CEVT_R4K
735 select CSRC_R4K
736 select IRQ_CPU
737 select BOOT_ELF32
738 select DMA_NONCOHERENT
739 select HW_HAS_PCI
740 select PCI_GT64XXX_PCI0
741 select SWAP_IO_SPACE
742 select SYS_HAS_CPU_MIPS32_R1
743 select SYS_HAS_CPU_MIPS32_R2
744 select SYS_HAS_CPU_MIPS64_R1
745 select SYS_HAS_CPU_NEVADA
746 select SYS_HAS_CPU_RM7000
747 select SYS_SUPPORTS_32BIT_KERNEL
748 select SYS_SUPPORTS_64BIT_KERNEL
749 select SYS_SUPPORTS_BIG_ENDIAN
750 select SYS_SUPPORTS_LITTLE_ENDIAN
751 help
752 This enables support for the Wind River MIPS32 4KC PPMC evaluation
753 board, which is based on GT64120 bridge chip.
754
755 config CAVIUM_OCTEON_SIMULATOR
756 bool "Cavium Networks Octeon Simulator"
757 select CEVT_R4K
758 select 64BIT_PHYS_ADDR
759 select DMA_COHERENT
760 select SYS_SUPPORTS_64BIT_KERNEL
761 select SYS_SUPPORTS_BIG_ENDIAN
762 select SYS_SUPPORTS_HOTPLUG_CPU
763 select SYS_HAS_CPU_CAVIUM_OCTEON
764 select HOLES_IN_ZONE
765 help
766 The Octeon simulator is software performance model of the Cavium
767 Octeon Processor. It supports simulating Octeon processors on x86
768 hardware.
769
770 config CAVIUM_OCTEON_REFERENCE_BOARD
771 bool "Cavium Networks Octeon reference board"
772 select CEVT_R4K
773 select 64BIT_PHYS_ADDR
774 select DMA_COHERENT
775 select SYS_SUPPORTS_64BIT_KERNEL
776 select SYS_SUPPORTS_BIG_ENDIAN
777 select SYS_SUPPORTS_HOTPLUG_CPU
778 select SYS_HAS_EARLY_PRINTK
779 select SYS_HAS_CPU_CAVIUM_OCTEON
780 select SWAP_IO_SPACE
781 select HW_HAS_PCI
782 select ARCH_SUPPORTS_MSI
783 select ZONE_DMA32
784 select USB_ARCH_HAS_OHCI
785 select USB_ARCH_HAS_EHCI
786 select HOLES_IN_ZONE
787 help
788 This option supports all of the Octeon reference boards from Cavium
789 Networks. It builds a kernel that dynamically determines the Octeon
790 CPU type and supports all known board reference implementations.
791 Some of the supported boards are:
792 EBT3000
793 EBH3000
794 EBH3100
795 Thunder
796 Kodama
797 Hikari
798 Say Y here for most Octeon reference boards.
799
800 config NLM_XLR_BOARD
801 bool "Netlogic XLR/XLS based systems"
802 depends on EXPERIMENTAL
803 select BOOT_ELF32
804 select NLM_COMMON
805 select SYS_HAS_CPU_XLR
806 select SYS_SUPPORTS_SMP
807 select HW_HAS_PCI
808 select SWAP_IO_SPACE
809 select SYS_SUPPORTS_32BIT_KERNEL
810 select SYS_SUPPORTS_64BIT_KERNEL
811 select 64BIT_PHYS_ADDR
812 select SYS_SUPPORTS_BIG_ENDIAN
813 select SYS_SUPPORTS_HIGHMEM
814 select DMA_COHERENT
815 select NR_CPUS_DEFAULT_32
816 select CEVT_R4K
817 select CSRC_R4K
818 select IRQ_CPU
819 select ARCH_SUPPORTS_MSI
820 select ZONE_DMA if 64BIT
821 select SYNC_R4K
822 select SYS_HAS_EARLY_PRINTK
823 select USB_ARCH_HAS_OHCI if USB_SUPPORT
824 select USB_ARCH_HAS_EHCI if USB_SUPPORT
825 help
826 Support for systems based on Netlogic XLR and XLS processors.
827 Say Y here if you have a XLR or XLS based board.
828
829 config NLM_XLP_BOARD
830 bool "Netlogic XLP based systems"
831 depends on EXPERIMENTAL
832 select BOOT_ELF32
833 select NLM_COMMON
834 select SYS_HAS_CPU_XLP
835 select SYS_SUPPORTS_SMP
836 select HW_HAS_PCI
837 select SYS_SUPPORTS_32BIT_KERNEL
838 select SYS_SUPPORTS_64BIT_KERNEL
839 select 64BIT_PHYS_ADDR
840 select SYS_SUPPORTS_BIG_ENDIAN
841 select SYS_SUPPORTS_LITTLE_ENDIAN
842 select SYS_SUPPORTS_HIGHMEM
843 select DMA_COHERENT
844 select NR_CPUS_DEFAULT_32
845 select CEVT_R4K
846 select CSRC_R4K
847 select IRQ_CPU
848 select ZONE_DMA if 64BIT
849 select SYNC_R4K
850 select SYS_HAS_EARLY_PRINTK
851 select USE_OF
852 help
853 This board is based on Netlogic XLP Processor.
854 Say Y here if you have a XLP based board.
855
856 endchoice
857
858 source "arch/mips/alchemy/Kconfig"
859 source "arch/mips/ath79/Kconfig"
860 source "arch/mips/bcm47xx/Kconfig"
861 source "arch/mips/bcm63xx/Kconfig"
862 source "arch/mips/jazz/Kconfig"
863 source "arch/mips/jz4740/Kconfig"
864 source "arch/mips/lantiq/Kconfig"
865 source "arch/mips/lasat/Kconfig"
866 source "arch/mips/pmc-sierra/Kconfig"
867 source "arch/mips/powertv/Kconfig"
868 source "arch/mips/sgi-ip27/Kconfig"
869 source "arch/mips/sibyte/Kconfig"
870 source "arch/mips/txx9/Kconfig"
871 source "arch/mips/vr41xx/Kconfig"
872 source "arch/mips/cavium-octeon/Kconfig"
873 source "arch/mips/loongson/Kconfig"
874 source "arch/mips/loongson1/Kconfig"
875 source "arch/mips/netlogic/Kconfig"
876
877 endmenu
878
879 config RWSEM_GENERIC_SPINLOCK
880 bool
881 default y
882
883 config RWSEM_XCHGADD_ALGORITHM
884 bool
885
886 config ARCH_HAS_ILOG2_U32
887 bool
888 default n
889
890 config ARCH_HAS_ILOG2_U64
891 bool
892 default n
893
894 config GENERIC_HWEIGHT
895 bool
896 default y
897
898 config GENERIC_CALIBRATE_DELAY
899 bool
900 default y
901
902 config SCHED_OMIT_FRAME_POINTER
903 bool
904 default y
905
906 #
907 # Select some configuration options automatically based on user selections.
908 #
909 config ARC
910 bool
911
912 config ARCH_MAY_HAVE_PC_FDC
913 bool
914
915 config BOOT_RAW
916 bool
917
918 config CEVT_BCM1480
919 bool
920
921 config CEVT_DS1287
922 bool
923
924 config CEVT_GT641XX
925 bool
926
927 config CEVT_R4K_LIB
928 bool
929
930 config CEVT_R4K
931 select CEVT_R4K_LIB
932 bool
933
934 config CEVT_SB1250
935 bool
936
937 config CEVT_TXX9
938 bool
939
940 config CSRC_BCM1480
941 bool
942
943 config CSRC_IOASIC
944 bool
945
946 config CSRC_POWERTV
947 bool
948
949 config CSRC_R4K_LIB
950 bool
951
952 config CSRC_R4K
953 select CSRC_R4K_LIB
954 bool
955
956 config CSRC_SB1250
957 bool
958
959 config GPIO_TXX9
960 select GENERIC_GPIO
961 select ARCH_REQUIRE_GPIOLIB
962 bool
963
964 config CFE
965 bool
966
967 config ARCH_DMA_ADDR_T_64BIT
968 def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT
969
970 config DMA_COHERENT
971 bool
972
973 config DMA_NONCOHERENT
974 bool
975 select NEED_DMA_MAP_STATE
976
977 config NEED_DMA_MAP_STATE
978 bool
979
980 config SYS_HAS_EARLY_PRINTK
981 bool
982
983 config HOTPLUG_CPU
984 bool "Support for hot-pluggable CPUs"
985 depends on SMP && HOTPLUG && SYS_SUPPORTS_HOTPLUG_CPU
986 help
987 Say Y here to allow turning CPUs off and on. CPUs can be
988 controlled through /sys/devices/system/cpu.
989 (Note: power management support will enable this option
990 automatically on SMP systems. )
991 Say N if you want to disable CPU hotplug.
992
993 config SYS_SUPPORTS_HOTPLUG_CPU
994 bool
995
996 config I8259
997 bool
998
999 config MIPS_BONITO64
1000 bool
1001
1002 config MIPS_MSC
1003 bool
1004
1005 config MIPS_NILE4
1006 bool
1007
1008 config MIPS_DISABLE_OBSOLETE_IDE
1009 bool
1010
1011 config SYNC_R4K
1012 bool
1013
1014 config MIPS_MACHINE
1015 def_bool n
1016
1017 config NO_IOPORT
1018 def_bool n
1019
1020 config GENERIC_ISA_DMA
1021 bool
1022 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1023 select ISA_DMA_API
1024
1025 config GENERIC_ISA_DMA_SUPPORT_BROKEN
1026 bool
1027 select GENERIC_ISA_DMA
1028
1029 config ISA_DMA_API
1030 bool
1031
1032 config GENERIC_GPIO
1033 bool
1034
1035 config HOLES_IN_ZONE
1036 bool
1037
1038 #
1039 # Endianness selection. Sufficiently obscure so many users don't know what to
1040 # answer,so we try hard to limit the available choices. Also the use of a
1041 # choice statement should be more obvious to the user.
1042 #
1043 choice
1044 prompt "Endianness selection"
1045 help
1046 Some MIPS machines can be configured for either little or big endian
1047 byte order. These modes require different kernels and a different
1048 Linux distribution. In general there is one preferred byteorder for a
1049 particular system but some systems are just as commonly used in the
1050 one or the other endianness.
1051
1052 config CPU_BIG_ENDIAN
1053 bool "Big endian"
1054 depends on SYS_SUPPORTS_BIG_ENDIAN
1055
1056 config CPU_LITTLE_ENDIAN
1057 bool "Little endian"
1058 depends on SYS_SUPPORTS_LITTLE_ENDIAN
1059 help
1060
1061 endchoice
1062
1063 config EXPORT_UASM
1064 bool
1065
1066 config SYS_SUPPORTS_APM_EMULATION
1067 bool
1068
1069 config SYS_SUPPORTS_BIG_ENDIAN
1070 bool
1071
1072 config SYS_SUPPORTS_LITTLE_ENDIAN
1073 bool
1074
1075 config SYS_SUPPORTS_HUGETLBFS
1076 bool
1077 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1078 default y
1079
1080 config IRQ_CPU
1081 bool
1082
1083 config IRQ_CPU_RM7K
1084 bool
1085
1086 config IRQ_CPU_RM9K
1087 bool
1088
1089 config IRQ_MSP_SLP
1090 bool
1091
1092 config IRQ_MSP_CIC
1093 bool
1094
1095 config IRQ_TXX9
1096 bool
1097
1098 config IRQ_GT641XX
1099 bool
1100
1101 config IRQ_GIC
1102 bool
1103
1104 config MIPS_BOARDS_GEN
1105 bool
1106
1107 config PCI_GT64XXX_PCI0
1108 bool
1109
1110 config NO_EXCEPT_FILL
1111 bool
1112
1113 config MIPS_RM9122
1114 bool
1115 select SERIAL_RM9000
1116
1117 config SOC_EMMA2RH
1118 bool
1119 select CEVT_R4K
1120 select CSRC_R4K
1121 select DMA_NONCOHERENT
1122 select IRQ_CPU
1123 select SWAP_IO_SPACE
1124 select SYS_HAS_CPU_R5500
1125 select SYS_SUPPORTS_32BIT_KERNEL
1126 select SYS_SUPPORTS_64BIT_KERNEL
1127 select SYS_SUPPORTS_BIG_ENDIAN
1128
1129 config SOC_PNX833X
1130 bool
1131 select CEVT_R4K
1132 select CSRC_R4K
1133 select IRQ_CPU
1134 select DMA_NONCOHERENT
1135 select SYS_HAS_CPU_MIPS32_R2
1136 select SYS_SUPPORTS_32BIT_KERNEL
1137 select SYS_SUPPORTS_LITTLE_ENDIAN
1138 select SYS_SUPPORTS_BIG_ENDIAN
1139 select GENERIC_GPIO
1140 select CPU_MIPSR2_IRQ_VI
1141
1142 config SOC_PNX8335
1143 bool
1144 select SOC_PNX833X
1145
1146 config PNX8550
1147 bool
1148 select SOC_PNX8550
1149
1150 config SOC_PNX8550
1151 bool
1152 select DMA_NONCOHERENT
1153 select HW_HAS_PCI
1154 select SYS_HAS_CPU_MIPS32_R1
1155 select SYS_HAS_EARLY_PRINTK
1156 select SYS_SUPPORTS_32BIT_KERNEL
1157 select GENERIC_GPIO
1158
1159 config SWAP_IO_SPACE
1160 bool
1161
1162 config SERIAL_RM9000
1163 bool
1164
1165 config SGI_HAS_INDYDOG
1166 bool
1167
1168 config SGI_HAS_HAL2
1169 bool
1170
1171 config SGI_HAS_SEEQ
1172 bool
1173
1174 config SGI_HAS_WD93
1175 bool
1176
1177 config SGI_HAS_ZILOG
1178 bool
1179
1180 config SGI_HAS_I8042
1181 bool
1182
1183 config DEFAULT_SGI_PARTITION
1184 bool
1185
1186 config ARC32
1187 bool
1188
1189 config SNIPROM
1190 bool
1191
1192 config BOOT_ELF32
1193 bool
1194
1195 config MIPS_L1_CACHE_SHIFT
1196 int
1197 default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL
1198 default "6" if MIPS_CPU_SCACHE
1199 default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON
1200 default "5"
1201
1202 config HAVE_STD_PC_SERIAL_PORT
1203 bool
1204
1205 config ARC_CONSOLE
1206 bool "ARC console support"
1207 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1208
1209 config ARC_MEMORY
1210 bool
1211 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1212 default y
1213
1214 config ARC_PROMLIB
1215 bool
1216 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1217 default y
1218
1219 config ARC64
1220 bool
1221
1222 config BOOT_ELF64
1223 bool
1224
1225 menu "CPU selection"
1226
1227 choice
1228 prompt "CPU type"
1229 default CPU_R4X00
1230
1231 config CPU_LOONGSON2E
1232 bool "Loongson 2E"
1233 depends on SYS_HAS_CPU_LOONGSON2E
1234 select CPU_LOONGSON2
1235 help
1236 The Loongson 2E processor implements the MIPS III instruction set
1237 with many extensions.
1238
1239 It has an internal FPGA northbridge, which is compatible to
1240 bonito64.
1241
1242 config CPU_LOONGSON2F
1243 bool "Loongson 2F"
1244 depends on SYS_HAS_CPU_LOONGSON2F
1245 select CPU_LOONGSON2
1246 select GENERIC_GPIO
1247 select ARCH_REQUIRE_GPIOLIB
1248 help
1249 The Loongson 2F processor implements the MIPS III instruction set
1250 with many extensions.
1251
1252 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1253 have a similar programming interface with FPGA northbridge used in
1254 Loongson2E.
1255
1256 config CPU_LOONGSON1B
1257 bool "Loongson 1B"
1258 depends on SYS_HAS_CPU_LOONGSON1B
1259 select CPU_LOONGSON1
1260 help
1261 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1262 release 2 instruction set.
1263
1264 config CPU_MIPS32_R1
1265 bool "MIPS32 Release 1"
1266 depends on SYS_HAS_CPU_MIPS32_R1
1267 select CPU_HAS_PREFETCH
1268 select CPU_SUPPORTS_32BIT_KERNEL
1269 select CPU_SUPPORTS_HIGHMEM
1270 help
1271 Choose this option to build a kernel for release 1 or later of the
1272 MIPS32 architecture. Most modern embedded systems with a 32-bit
1273 MIPS processor are based on a MIPS32 processor. If you know the
1274 specific type of processor in your system, choose those that one
1275 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1276 Release 2 of the MIPS32 architecture is available since several
1277 years so chances are you even have a MIPS32 Release 2 processor
1278 in which case you should choose CPU_MIPS32_R2 instead for better
1279 performance.
1280
1281 config CPU_MIPS32_R2
1282 bool "MIPS32 Release 2"
1283 depends on SYS_HAS_CPU_MIPS32_R2
1284 select CPU_HAS_PREFETCH
1285 select CPU_SUPPORTS_32BIT_KERNEL
1286 select CPU_SUPPORTS_HIGHMEM
1287 help
1288 Choose this option to build a kernel for release 2 or later of the
1289 MIPS32 architecture. Most modern embedded systems with a 32-bit
1290 MIPS processor are based on a MIPS32 processor. If you know the
1291 specific type of processor in your system, choose those that one
1292 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1293
1294 config CPU_MIPS64_R1
1295 bool "MIPS64 Release 1"
1296 depends on SYS_HAS_CPU_MIPS64_R1
1297 select CPU_HAS_PREFETCH
1298 select CPU_SUPPORTS_32BIT_KERNEL
1299 select CPU_SUPPORTS_64BIT_KERNEL
1300 select CPU_SUPPORTS_HIGHMEM
1301 select CPU_SUPPORTS_HUGEPAGES
1302 help
1303 Choose this option to build a kernel for release 1 or later of the
1304 MIPS64 architecture. Many modern embedded systems with a 64-bit
1305 MIPS processor are based on a MIPS64 processor. If you know the
1306 specific type of processor in your system, choose those that one
1307 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1308 Release 2 of the MIPS64 architecture is available since several
1309 years so chances are you even have a MIPS64 Release 2 processor
1310 in which case you should choose CPU_MIPS64_R2 instead for better
1311 performance.
1312
1313 config CPU_MIPS64_R2
1314 bool "MIPS64 Release 2"
1315 depends on SYS_HAS_CPU_MIPS64_R2
1316 select CPU_HAS_PREFETCH
1317 select CPU_SUPPORTS_32BIT_KERNEL
1318 select CPU_SUPPORTS_64BIT_KERNEL
1319 select CPU_SUPPORTS_HIGHMEM
1320 select CPU_SUPPORTS_HUGEPAGES
1321 help
1322 Choose this option to build a kernel for release 2 or later of the
1323 MIPS64 architecture. Many modern embedded systems with a 64-bit
1324 MIPS processor are based on a MIPS64 processor. If you know the
1325 specific type of processor in your system, choose those that one
1326 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1327
1328 config CPU_R3000
1329 bool "R3000"
1330 depends on SYS_HAS_CPU_R3000
1331 select CPU_HAS_WB
1332 select CPU_SUPPORTS_32BIT_KERNEL
1333 select CPU_SUPPORTS_HIGHMEM
1334 help
1335 Please make sure to pick the right CPU type. Linux/MIPS is not
1336 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1337 *not* work on R4000 machines and vice versa. However, since most
1338 of the supported machines have an R4000 (or similar) CPU, R4x00
1339 might be a safe bet. If the resulting kernel does not work,
1340 try to recompile with R3000.
1341
1342 config CPU_TX39XX
1343 bool "R39XX"
1344 depends on SYS_HAS_CPU_TX39XX
1345 select CPU_SUPPORTS_32BIT_KERNEL
1346
1347 config CPU_VR41XX
1348 bool "R41xx"
1349 depends on SYS_HAS_CPU_VR41XX
1350 select CPU_SUPPORTS_32BIT_KERNEL
1351 select CPU_SUPPORTS_64BIT_KERNEL
1352 help
1353 The options selects support for the NEC VR4100 series of processors.
1354 Only choose this option if you have one of these processors as a
1355 kernel built with this option will not run on any other type of
1356 processor or vice versa.
1357
1358 config CPU_R4300
1359 bool "R4300"
1360 depends on SYS_HAS_CPU_R4300
1361 select CPU_SUPPORTS_32BIT_KERNEL
1362 select CPU_SUPPORTS_64BIT_KERNEL
1363 help
1364 MIPS Technologies R4300-series processors.
1365
1366 config CPU_R4X00
1367 bool "R4x00"
1368 depends on SYS_HAS_CPU_R4X00
1369 select CPU_SUPPORTS_32BIT_KERNEL
1370 select CPU_SUPPORTS_64BIT_KERNEL
1371 help
1372 MIPS Technologies R4000-series processors other than 4300, including
1373 the R4000, R4400, R4600, and 4700.
1374
1375 config CPU_TX49XX
1376 bool "R49XX"
1377 depends on SYS_HAS_CPU_TX49XX
1378 select CPU_HAS_PREFETCH
1379 select CPU_SUPPORTS_32BIT_KERNEL
1380 select CPU_SUPPORTS_64BIT_KERNEL
1381
1382 config CPU_R5000
1383 bool "R5000"
1384 depends on SYS_HAS_CPU_R5000
1385 select CPU_SUPPORTS_32BIT_KERNEL
1386 select CPU_SUPPORTS_64BIT_KERNEL
1387 help
1388 MIPS Technologies R5000-series processors other than the Nevada.
1389
1390 config CPU_R5432
1391 bool "R5432"
1392 depends on SYS_HAS_CPU_R5432
1393 select CPU_SUPPORTS_32BIT_KERNEL
1394 select CPU_SUPPORTS_64BIT_KERNEL
1395
1396 config CPU_R5500
1397 bool "R5500"
1398 depends on SYS_HAS_CPU_R5500
1399 select CPU_SUPPORTS_32BIT_KERNEL
1400 select CPU_SUPPORTS_64BIT_KERNEL
1401 select CPU_SUPPORTS_HUGEPAGES
1402 help
1403 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1404 instruction set.
1405
1406 config CPU_R6000
1407 bool "R6000"
1408 depends on EXPERIMENTAL
1409 depends on SYS_HAS_CPU_R6000
1410 select CPU_SUPPORTS_32BIT_KERNEL
1411 help
1412 MIPS Technologies R6000 and R6000A series processors. Note these
1413 processors are extremely rare and the support for them is incomplete.
1414
1415 config CPU_NEVADA
1416 bool "RM52xx"
1417 depends on SYS_HAS_CPU_NEVADA
1418 select CPU_SUPPORTS_32BIT_KERNEL
1419 select CPU_SUPPORTS_64BIT_KERNEL
1420 help
1421 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1422
1423 config CPU_R8000
1424 bool "R8000"
1425 depends on EXPERIMENTAL
1426 depends on SYS_HAS_CPU_R8000
1427 select CPU_HAS_PREFETCH
1428 select CPU_SUPPORTS_64BIT_KERNEL
1429 help
1430 MIPS Technologies R8000 processors. Note these processors are
1431 uncommon and the support for them is incomplete.
1432
1433 config CPU_R10000
1434 bool "R10000"
1435 depends on SYS_HAS_CPU_R10000
1436 select CPU_HAS_PREFETCH
1437 select CPU_SUPPORTS_32BIT_KERNEL
1438 select CPU_SUPPORTS_64BIT_KERNEL
1439 select CPU_SUPPORTS_HIGHMEM
1440 help
1441 MIPS Technologies R10000-series processors.
1442
1443 config CPU_RM7000
1444 bool "RM7000"
1445 depends on SYS_HAS_CPU_RM7000
1446 select CPU_HAS_PREFETCH
1447 select CPU_SUPPORTS_32BIT_KERNEL
1448 select CPU_SUPPORTS_64BIT_KERNEL
1449 select CPU_SUPPORTS_HIGHMEM
1450
1451 config CPU_RM9000
1452 bool "RM9000"
1453 depends on SYS_HAS_CPU_RM9000
1454 select CPU_HAS_PREFETCH
1455 select CPU_SUPPORTS_32BIT_KERNEL
1456 select CPU_SUPPORTS_64BIT_KERNEL
1457 select CPU_SUPPORTS_HIGHMEM
1458 select WEAK_ORDERING
1459
1460 config CPU_SB1
1461 bool "SB1"
1462 depends on SYS_HAS_CPU_SB1
1463 select CPU_SUPPORTS_32BIT_KERNEL
1464 select CPU_SUPPORTS_64BIT_KERNEL
1465 select CPU_SUPPORTS_HIGHMEM
1466 select WEAK_ORDERING
1467
1468 config CPU_CAVIUM_OCTEON
1469 bool "Cavium Octeon processor"
1470 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1471 select ARCH_SPARSEMEM_ENABLE
1472 select CPU_HAS_PREFETCH
1473 select CPU_SUPPORTS_64BIT_KERNEL
1474 select SYS_SUPPORTS_SMP
1475 select NR_CPUS_DEFAULT_16
1476 select WEAK_ORDERING
1477 select CPU_SUPPORTS_HIGHMEM
1478 select CPU_SUPPORTS_HUGEPAGES
1479 select LIBFDT
1480 select USE_OF
1481 help
1482 The Cavium Octeon processor is a highly integrated chip containing
1483 many ethernet hardware widgets for networking tasks. The processor
1484 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1485 Full details can be found at http://www.caviumnetworks.com.
1486
1487 config CPU_BMIPS3300
1488 bool "BMIPS3300"
1489 depends on SYS_HAS_CPU_BMIPS3300
1490 select CPU_BMIPS
1491 help
1492 Broadcom BMIPS3300 processors.
1493
1494 config CPU_BMIPS4350
1495 bool "BMIPS4350"
1496 depends on SYS_HAS_CPU_BMIPS4350
1497 select CPU_BMIPS
1498 select SYS_SUPPORTS_SMP
1499 select SYS_SUPPORTS_HOTPLUG_CPU
1500 help
1501 Broadcom BMIPS4350 ("VIPER") processors.
1502
1503 config CPU_BMIPS4380
1504 bool "BMIPS4380"
1505 depends on SYS_HAS_CPU_BMIPS4380
1506 select CPU_BMIPS
1507 select SYS_SUPPORTS_SMP
1508 select SYS_SUPPORTS_HOTPLUG_CPU
1509 help
1510 Broadcom BMIPS4380 processors.
1511
1512 config CPU_BMIPS5000
1513 bool "BMIPS5000"
1514 depends on SYS_HAS_CPU_BMIPS5000
1515 select CPU_BMIPS
1516 select CPU_SUPPORTS_HIGHMEM
1517 select MIPS_CPU_SCACHE
1518 select SYS_SUPPORTS_SMP
1519 select SYS_SUPPORTS_HOTPLUG_CPU
1520 help
1521 Broadcom BMIPS5000 processors.
1522
1523 config CPU_XLR
1524 bool "Netlogic XLR SoC"
1525 depends on SYS_HAS_CPU_XLR
1526 select CPU_SUPPORTS_32BIT_KERNEL
1527 select CPU_SUPPORTS_64BIT_KERNEL
1528 select CPU_SUPPORTS_HIGHMEM
1529 select WEAK_ORDERING
1530 select WEAK_REORDERING_BEYOND_LLSC
1531 select CPU_SUPPORTS_HUGEPAGES
1532 help
1533 Netlogic Microsystems XLR/XLS processors.
1534
1535 config CPU_XLP
1536 bool "Netlogic XLP SoC"
1537 depends on SYS_HAS_CPU_XLP
1538 select CPU_SUPPORTS_32BIT_KERNEL
1539 select CPU_SUPPORTS_64BIT_KERNEL
1540 select CPU_SUPPORTS_HIGHMEM
1541 select CPU_HAS_LLSC
1542 select WEAK_ORDERING
1543 select WEAK_REORDERING_BEYOND_LLSC
1544 select CPU_HAS_PREFETCH
1545 help
1546 Netlogic Microsystems XLP processors.
1547 endchoice
1548
1549 if CPU_LOONGSON2F
1550 config CPU_NOP_WORKAROUNDS
1551 bool
1552
1553 config CPU_JUMP_WORKAROUNDS
1554 bool
1555
1556 config CPU_LOONGSON2F_WORKAROUNDS
1557 bool "Loongson 2F Workarounds"
1558 default y
1559 select CPU_NOP_WORKAROUNDS
1560 select CPU_JUMP_WORKAROUNDS
1561 help
1562 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1563 require workarounds. Without workarounds the system may hang
1564 unexpectedly. For more information please refer to the gas
1565 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1566
1567 Loongson 2F03 and later have fixed these issues and no workarounds
1568 are needed. The workarounds have no significant side effect on them
1569 but may decrease the performance of the system so this option should
1570 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1571 systems.
1572
1573 If unsure, please say Y.
1574 endif # CPU_LOONGSON2F
1575
1576 config SYS_SUPPORTS_ZBOOT
1577 bool
1578 select HAVE_KERNEL_GZIP
1579 select HAVE_KERNEL_BZIP2
1580 select HAVE_KERNEL_LZMA
1581 select HAVE_KERNEL_LZO
1582
1583 config SYS_SUPPORTS_ZBOOT_UART16550
1584 bool
1585 select SYS_SUPPORTS_ZBOOT
1586
1587 config CPU_LOONGSON2
1588 bool
1589 select CPU_SUPPORTS_32BIT_KERNEL
1590 select CPU_SUPPORTS_64BIT_KERNEL
1591 select CPU_SUPPORTS_HIGHMEM
1592
1593 config CPU_LOONGSON1
1594 bool
1595 select CPU_MIPS32
1596 select CPU_MIPSR2
1597 select CPU_HAS_PREFETCH
1598 select CPU_SUPPORTS_32BIT_KERNEL
1599 select CPU_SUPPORTS_HIGHMEM
1600
1601 config CPU_BMIPS
1602 bool
1603 select CPU_MIPS32
1604 select CPU_SUPPORTS_32BIT_KERNEL
1605 select DMA_NONCOHERENT
1606 select IRQ_CPU
1607 select SWAP_IO_SPACE
1608 select WEAK_ORDERING
1609
1610 config SYS_HAS_CPU_LOONGSON2E
1611 bool
1612
1613 config SYS_HAS_CPU_LOONGSON2F
1614 bool
1615 select CPU_SUPPORTS_CPUFREQ
1616 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1617 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1618
1619 config SYS_HAS_CPU_LOONGSON1B
1620 bool
1621
1622 config SYS_HAS_CPU_MIPS32_R1
1623 bool
1624
1625 config SYS_HAS_CPU_MIPS32_R2
1626 bool
1627
1628 config SYS_HAS_CPU_MIPS64_R1
1629 bool
1630
1631 config SYS_HAS_CPU_MIPS64_R2
1632 bool
1633
1634 config SYS_HAS_CPU_R3000
1635 bool
1636
1637 config SYS_HAS_CPU_TX39XX
1638 bool
1639
1640 config SYS_HAS_CPU_VR41XX
1641 bool
1642
1643 config SYS_HAS_CPU_R4300
1644 bool
1645
1646 config SYS_HAS_CPU_R4X00
1647 bool
1648
1649 config SYS_HAS_CPU_TX49XX
1650 bool
1651
1652 config SYS_HAS_CPU_R5000
1653 bool
1654
1655 config SYS_HAS_CPU_R5432
1656 bool
1657
1658 config SYS_HAS_CPU_R5500
1659 bool
1660
1661 config SYS_HAS_CPU_R6000
1662 bool
1663
1664 config SYS_HAS_CPU_NEVADA
1665 bool
1666
1667 config SYS_HAS_CPU_R8000
1668 bool
1669
1670 config SYS_HAS_CPU_R10000
1671 bool
1672
1673 config SYS_HAS_CPU_RM7000
1674 bool
1675
1676 config SYS_HAS_CPU_RM9000
1677 bool
1678
1679 config SYS_HAS_CPU_SB1
1680 bool
1681
1682 config SYS_HAS_CPU_CAVIUM_OCTEON
1683 bool
1684
1685 config SYS_HAS_CPU_BMIPS3300
1686 bool
1687
1688 config SYS_HAS_CPU_BMIPS4350
1689 bool
1690
1691 config SYS_HAS_CPU_BMIPS4380
1692 bool
1693
1694 config SYS_HAS_CPU_BMIPS5000
1695 bool
1696
1697 config SYS_HAS_CPU_XLR
1698 bool
1699
1700 config SYS_HAS_CPU_XLP
1701 bool
1702
1703 #
1704 # CPU may reorder R->R, R->W, W->R, W->W
1705 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1706 #
1707 config WEAK_ORDERING
1708 bool
1709
1710 #
1711 # CPU may reorder reads and writes beyond LL/SC
1712 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1713 #
1714 config WEAK_REORDERING_BEYOND_LLSC
1715 bool
1716 endmenu
1717
1718 #
1719 # These two indicate any level of the MIPS32 and MIPS64 architecture
1720 #
1721 config CPU_MIPS32
1722 bool
1723 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1724
1725 config CPU_MIPS64
1726 bool
1727 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1728
1729 #
1730 # These two indicate the revision of the architecture, either Release 1 or Release 2
1731 #
1732 config CPU_MIPSR1
1733 bool
1734 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1735
1736 config CPU_MIPSR2
1737 bool
1738 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1739
1740 config SYS_SUPPORTS_32BIT_KERNEL
1741 bool
1742 config SYS_SUPPORTS_64BIT_KERNEL
1743 bool
1744 config CPU_SUPPORTS_32BIT_KERNEL
1745 bool
1746 config CPU_SUPPORTS_64BIT_KERNEL
1747 bool
1748 config CPU_SUPPORTS_CPUFREQ
1749 bool
1750 config CPU_SUPPORTS_ADDRWINCFG
1751 bool
1752 config CPU_SUPPORTS_HUGEPAGES
1753 bool
1754 config CPU_SUPPORTS_UNCACHED_ACCELERATED
1755 bool
1756 config MIPS_PGD_C0_CONTEXT
1757 bool
1758 default y if 64BIT && CPU_MIPSR2
1759
1760 #
1761 # Set to y for ptrace access to watch registers.
1762 #
1763 config HARDWARE_WATCHPOINTS
1764 bool
1765 default y if CPU_MIPSR1 || CPU_MIPSR2
1766
1767 menu "Kernel type"
1768
1769 choice
1770 prompt "Kernel code model"
1771 help
1772 You should only select this option if you have a workload that
1773 actually benefits from 64-bit processing or if your machine has
1774 large memory. You will only be presented a single option in this
1775 menu if your system does not support both 32-bit and 64-bit kernels.
1776
1777 config 32BIT
1778 bool "32-bit kernel"
1779 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1780 select TRAD_SIGNALS
1781 help
1782 Select this option if you want to build a 32-bit kernel.
1783 config 64BIT
1784 bool "64-bit kernel"
1785 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1786 select HAVE_SYSCALL_WRAPPERS
1787 help
1788 Select this option if you want to build a 64-bit kernel.
1789
1790 endchoice
1791
1792 choice
1793 prompt "Kernel page size"
1794 default PAGE_SIZE_4KB
1795
1796 config PAGE_SIZE_4KB
1797 bool "4kB"
1798 depends on !CPU_LOONGSON2
1799 help
1800 This option select the standard 4kB Linux page size. On some
1801 R3000-family processors this is the only available page size. Using
1802 4kB page size will minimize memory consumption and is therefore
1803 recommended for low memory systems.
1804
1805 config PAGE_SIZE_8KB
1806 bool "8kB"
1807 depends on (EXPERIMENTAL && CPU_R8000) || CPU_CAVIUM_OCTEON
1808 help
1809 Using 8kB page size will result in higher performance kernel at
1810 the price of higher memory consumption. This option is available
1811 only on R8000 and cnMIPS processors. Note that you will need a
1812 suitable Linux distribution to support this.
1813
1814 config PAGE_SIZE_16KB
1815 bool "16kB"
1816 depends on !CPU_R3000 && !CPU_TX39XX
1817 help
1818 Using 16kB page size will result in higher performance kernel at
1819 the price of higher memory consumption. This option is available on
1820 all non-R3000 family processors. Note that you will need a suitable
1821 Linux distribution to support this.
1822
1823 config PAGE_SIZE_32KB
1824 bool "32kB"
1825 depends on CPU_CAVIUM_OCTEON
1826 help
1827 Using 32kB page size will result in higher performance kernel at
1828 the price of higher memory consumption. This option is available
1829 only on cnMIPS cores. Note that you will need a suitable Linux
1830 distribution to support this.
1831
1832 config PAGE_SIZE_64KB
1833 bool "64kB"
1834 depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
1835 help
1836 Using 64kB page size will result in higher performance kernel at
1837 the price of higher memory consumption. This option is available on
1838 all non-R3000 family processor. Not that at the time of this
1839 writing this option is still high experimental.
1840
1841 endchoice
1842
1843 config FORCE_MAX_ZONEORDER
1844 int "Maximum zone order"
1845 range 14 64 if HUGETLB_PAGE && PAGE_SIZE_64KB
1846 default "14" if HUGETLB_PAGE && PAGE_SIZE_64KB
1847 range 13 64 if HUGETLB_PAGE && PAGE_SIZE_32KB
1848 default "13" if HUGETLB_PAGE && PAGE_SIZE_32KB
1849 range 12 64 if HUGETLB_PAGE && PAGE_SIZE_16KB
1850 default "12" if HUGETLB_PAGE && PAGE_SIZE_16KB
1851 range 11 64
1852 default "11"
1853 help
1854 The kernel memory allocator divides physically contiguous memory
1855 blocks into "zones", where each zone is a power of two number of
1856 pages. This option selects the largest power of two that the kernel
1857 keeps in the memory allocator. If you need to allocate very large
1858 blocks of physically contiguous memory, then you may need to
1859 increase this value.
1860
1861 This config option is actually maximum order plus one. For example,
1862 a value of 11 means that the largest free memory block is 2^10 pages.
1863
1864 The page size is not necessarily 4KB. Keep this in mind
1865 when choosing a value for this option.
1866
1867 config BOARD_SCACHE
1868 bool
1869
1870 config IP22_CPU_SCACHE
1871 bool
1872 select BOARD_SCACHE
1873
1874 #
1875 # Support for a MIPS32 / MIPS64 style S-caches
1876 #
1877 config MIPS_CPU_SCACHE
1878 bool
1879 select BOARD_SCACHE
1880
1881 config R5000_CPU_SCACHE
1882 bool
1883 select BOARD_SCACHE
1884
1885 config RM7000_CPU_SCACHE
1886 bool
1887 select BOARD_SCACHE
1888
1889 config SIBYTE_DMA_PAGEOPS
1890 bool "Use DMA to clear/copy pages"
1891 depends on CPU_SB1
1892 help
1893 Instead of using the CPU to zero and copy pages, use a Data Mover
1894 channel. These DMA channels are otherwise unused by the standard
1895 SiByte Linux port. Seems to give a small performance benefit.
1896
1897 config CPU_HAS_PREFETCH
1898 bool
1899
1900 config CPU_GENERIC_DUMP_TLB
1901 bool
1902 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
1903
1904 config CPU_R4K_FPU
1905 bool
1906 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1907
1908 config CPU_R4K_CACHE_TLB
1909 bool
1910 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1911
1912 choice
1913 prompt "MIPS MT options"
1914
1915 config MIPS_MT_DISABLED
1916 bool "Disable multithreading support."
1917 help
1918 Use this option if your workload can't take advantage of
1919 MIPS hardware multithreading support. On systems that don't have
1920 the option of an MT-enabled processor this option will be the only
1921 option in this menu.
1922
1923 config MIPS_MT_SMP
1924 bool "Use 1 TC on each available VPE for SMP"
1925 depends on SYS_SUPPORTS_MULTITHREADING
1926 select CPU_MIPSR2_IRQ_VI
1927 select CPU_MIPSR2_IRQ_EI
1928 select MIPS_MT
1929 select NR_CPUS_DEFAULT_2
1930 select SMP
1931 select SYS_SUPPORTS_SCHED_SMT if SMP
1932 select SYS_SUPPORTS_SMP
1933 select SMP_UP
1934 select MIPS_PERF_SHARED_TC_COUNTERS
1935 help
1936 This is a kernel model which is known a VSMP but lately has been
1937 marketesed into SMVP.
1938 Virtual SMP uses the processor's VPEs to implement virtual
1939 processors. In currently available configuration of the 34K processor
1940 this allows for a dual processor. Both processors will share the same
1941 primary caches; each will obtain the half of the TLB for it's own
1942 exclusive use. For a layman this model can be described as similar to
1943 what Intel calls Hyperthreading.
1944
1945 For further information see http://www.linux-mips.org/wiki/34K#VSMP
1946
1947 config MIPS_MT_SMTC
1948 bool "SMTC: Use all TCs on all VPEs for SMP"
1949 depends on CPU_MIPS32_R2
1950 #depends on CPU_MIPS64_R2 # once there is hardware ...
1951 depends on SYS_SUPPORTS_MULTITHREADING
1952 select CPU_MIPSR2_IRQ_VI
1953 select CPU_MIPSR2_IRQ_EI
1954 select MIPS_MT
1955 select NR_CPUS_DEFAULT_8
1956 select SMP
1957 select SYS_SUPPORTS_SMP
1958 select SMP_UP
1959 help
1960 This is a kernel model which is known a SMTC or lately has been
1961 marketesed into SMVP.
1962 is presenting the available TC's of the core as processors to Linux.
1963 On currently available 34K processors this means a Linux system will
1964 see up to 5 processors. The implementation of the SMTC kernel differs
1965 significantly from VSMP and cannot efficiently coexist in the same
1966 kernel binary so the choice between VSMP and SMTC is a compile time
1967 decision.
1968
1969 For further information see http://www.linux-mips.org/wiki/34K#SMTC
1970
1971 endchoice
1972
1973 config MIPS_MT
1974 bool
1975
1976 config SCHED_SMT
1977 bool "SMT (multithreading) scheduler support"
1978 depends on SYS_SUPPORTS_SCHED_SMT
1979 default n
1980 help
1981 SMT scheduler support improves the CPU scheduler's decision making
1982 when dealing with MIPS MT enabled cores at a cost of slightly
1983 increased overhead in some places. If unsure say N here.
1984
1985 config SYS_SUPPORTS_SCHED_SMT
1986 bool
1987
1988 config SYS_SUPPORTS_MULTITHREADING
1989 bool
1990
1991 config MIPS_MT_FPAFF
1992 bool "Dynamic FPU affinity for FP-intensive threads"
1993 default y
1994 depends on MIPS_MT_SMP || MIPS_MT_SMTC
1995
1996 config MIPS_VPE_LOADER
1997 bool "VPE loader support."
1998 depends on SYS_SUPPORTS_MULTITHREADING
1999 select CPU_MIPSR2_IRQ_VI
2000 select CPU_MIPSR2_IRQ_EI
2001 select MIPS_MT
2002 help
2003 Includes a loader for loading an elf relocatable object
2004 onto another VPE and running it.
2005
2006 config MIPS_MT_SMTC_IM_BACKSTOP
2007 bool "Use per-TC register bits as backstop for inhibited IM bits"
2008 depends on MIPS_MT_SMTC
2009 default n
2010 help
2011 To support multiple TC microthreads acting as "CPUs" within
2012 a VPE, VPE-wide interrupt mask bits must be specially manipulated
2013 during interrupt handling. To support legacy drivers and interrupt
2014 controller management code, SMTC has a "backstop" to track and
2015 if necessary restore the interrupt mask. This has some performance
2016 impact on interrupt service overhead.
2017
2018 config MIPS_MT_SMTC_IRQAFF
2019 bool "Support IRQ affinity API"
2020 depends on MIPS_MT_SMTC
2021 default n
2022 help
2023 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
2024 for SMTC Linux kernel. Requires platform support, of which
2025 an example can be found in the MIPS kernel i8259 and Malta
2026 platform code. Adds some overhead to interrupt dispatch, and
2027 should be used only if you know what you are doing.
2028
2029 config MIPS_VPE_LOADER_TOM
2030 bool "Load VPE program into memory hidden from linux"
2031 depends on MIPS_VPE_LOADER
2032 default y
2033 help
2034 The loader can use memory that is present but has been hidden from
2035 Linux using the kernel command line option "mem=xxMB". It's up to
2036 you to ensure the amount you put in the option and the space your
2037 program requires is less or equal to the amount physically present.
2038
2039 # this should possibly be in drivers/char, but it is rather cpu related. Hmmm
2040 config MIPS_VPE_APSP_API
2041 bool "Enable support for AP/SP API (RTLX)"
2042 depends on MIPS_VPE_LOADER
2043 help
2044
2045 config MIPS_CMP
2046 bool "MIPS CMP framework support"
2047 depends on SYS_SUPPORTS_MIPS_CMP
2048 select SYNC_R4K
2049 select SYS_SUPPORTS_SMP
2050 select SYS_SUPPORTS_SCHED_SMT if SMP
2051 select WEAK_ORDERING
2052 default n
2053 help
2054 This is a placeholder option for the GCMP work. It will need to
2055 be handled differently...
2056
2057 config SB1_PASS_1_WORKAROUNDS
2058 bool
2059 depends on CPU_SB1_PASS_1
2060 default y
2061
2062 config SB1_PASS_2_WORKAROUNDS
2063 bool
2064 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2065 default y
2066
2067 config SB1_PASS_2_1_WORKAROUNDS
2068 bool
2069 depends on CPU_SB1 && CPU_SB1_PASS_2
2070 default y
2071
2072 config 64BIT_PHYS_ADDR
2073 bool
2074
2075 config ARCH_PHYS_ADDR_T_64BIT
2076 def_bool 64BIT_PHYS_ADDR
2077
2078 config CPU_HAS_SMARTMIPS
2079 depends on SYS_SUPPORTS_SMARTMIPS
2080 bool "Support for the SmartMIPS ASE"
2081 help
2082 SmartMIPS is a extension of the MIPS32 architecture aimed at
2083 increased security at both hardware and software level for
2084 smartcards. Enabling this option will allow proper use of the
2085 SmartMIPS instructions by Linux applications. However a kernel with
2086 this option will not work on a MIPS core without SmartMIPS core. If
2087 you don't know you probably don't have SmartMIPS and should say N
2088 here.
2089
2090 config CPU_HAS_WB
2091 bool
2092
2093 config XKS01
2094 bool
2095
2096 #
2097 # Vectored interrupt mode is an R2 feature
2098 #
2099 config CPU_MIPSR2_IRQ_VI
2100 bool
2101
2102 #
2103 # Extended interrupt mode is an R2 feature
2104 #
2105 config CPU_MIPSR2_IRQ_EI
2106 bool
2107
2108 config CPU_HAS_SYNC
2109 bool
2110 depends on !CPU_R3000
2111 default y
2112
2113 #
2114 # CPU non-features
2115 #
2116 config CPU_DADDI_WORKAROUNDS
2117 bool
2118
2119 config CPU_R4000_WORKAROUNDS
2120 bool
2121 select CPU_R4400_WORKAROUNDS
2122
2123 config CPU_R4400_WORKAROUNDS
2124 bool
2125
2126 #
2127 # - Highmem only makes sense for the 32-bit kernel.
2128 # - The current highmem code will only work properly on physically indexed
2129 # caches such as R3000, SB1, R7000 or those that look like they're virtually
2130 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2131 # moment we protect the user and offer the highmem option only on machines
2132 # where it's known to be safe. This will not offer highmem on a few systems
2133 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2134 # indexed CPUs but we're playing safe.
2135 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2136 # know they might have memory configurations that could make use of highmem
2137 # support.
2138 #
2139 config HIGHMEM
2140 bool "High Memory Support"
2141 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
2142
2143 config CPU_SUPPORTS_HIGHMEM
2144 bool
2145
2146 config SYS_SUPPORTS_HIGHMEM
2147 bool
2148
2149 config SYS_SUPPORTS_SMARTMIPS
2150 bool
2151
2152 config ARCH_FLATMEM_ENABLE
2153 def_bool y
2154 depends on !NUMA && !CPU_LOONGSON2
2155
2156 config ARCH_DISCONTIGMEM_ENABLE
2157 bool
2158 default y if SGI_IP27
2159 help
2160 Say Y to support efficient handling of discontiguous physical memory,
2161 for architectures which are either NUMA (Non-Uniform Memory Access)
2162 or have huge holes in the physical address space for other reasons.
2163 See <file:Documentation/vm/numa> for more.
2164
2165 config ARCH_SPARSEMEM_ENABLE
2166 bool
2167 select SPARSEMEM_STATIC
2168
2169 config NUMA
2170 bool "NUMA Support"
2171 depends on SYS_SUPPORTS_NUMA
2172 help
2173 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2174 Access). This option improves performance on systems with more
2175 than two nodes; on two node systems it is generally better to
2176 leave it disabled; on single node systems disable this option
2177 disabled.
2178
2179 config SYS_SUPPORTS_NUMA
2180 bool
2181
2182 config NODES_SHIFT
2183 int
2184 default "6"
2185 depends on NEED_MULTIPLE_NODES
2186
2187 config HW_PERF_EVENTS
2188 bool "Enable hardware performance counter support for perf events"
2189 depends on PERF_EVENTS && !MIPS_MT_SMTC && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON)
2190 default y
2191 help
2192 Enable hardware performance counter support for perf events. If
2193 disabled, perf events will use software events only.
2194
2195 source "mm/Kconfig"
2196
2197 config SMP
2198 bool "Multi-Processing support"
2199 depends on SYS_SUPPORTS_SMP
2200 select IRQ_PER_CPU
2201 select USE_GENERIC_SMP_HELPERS
2202 help
2203 This enables support for systems with more than one CPU. If you have
2204 a system with only one CPU, like most personal computers, say N. If
2205 you have a system with more than one CPU, say Y.
2206
2207 If you say N here, the kernel will run on single and multiprocessor
2208 machines, but will use only one CPU of a multiprocessor machine. If
2209 you say Y here, the kernel will run on many, but not all,
2210 singleprocessor machines. On a singleprocessor machine, the kernel
2211 will run faster if you say N here.
2212
2213 People using multiprocessor machines who say Y here should also say
2214 Y to "Enhanced Real Time Clock Support", below.
2215
2216 See also the SMP-HOWTO available at
2217 <http://www.tldp.org/docs.html#howto>.
2218
2219 If you don't know what to do here, say N.
2220
2221 config SMP_UP
2222 bool
2223
2224 config SYS_SUPPORTS_MIPS_CMP
2225 bool
2226
2227 config SYS_SUPPORTS_SMP
2228 bool
2229
2230 config NR_CPUS_DEFAULT_1
2231 bool
2232
2233 config NR_CPUS_DEFAULT_2
2234 bool
2235
2236 config NR_CPUS_DEFAULT_4
2237 bool
2238
2239 config NR_CPUS_DEFAULT_8
2240 bool
2241
2242 config NR_CPUS_DEFAULT_16
2243 bool
2244
2245 config NR_CPUS_DEFAULT_32
2246 bool
2247
2248 config NR_CPUS_DEFAULT_64
2249 bool
2250
2251 config NR_CPUS
2252 int "Maximum number of CPUs (2-64)"
2253 range 1 64 if NR_CPUS_DEFAULT_1
2254 depends on SMP
2255 default "1" if NR_CPUS_DEFAULT_1
2256 default "2" if NR_CPUS_DEFAULT_2
2257 default "4" if NR_CPUS_DEFAULT_4
2258 default "8" if NR_CPUS_DEFAULT_8
2259 default "16" if NR_CPUS_DEFAULT_16
2260 default "32" if NR_CPUS_DEFAULT_32
2261 default "64" if NR_CPUS_DEFAULT_64
2262 help
2263 This allows you to specify the maximum number of CPUs which this
2264 kernel will support. The maximum supported value is 32 for 32-bit
2265 kernel and 64 for 64-bit kernels; the minimum value which makes
2266 sense is 1 for Qemu (useful only for kernel debugging purposes)
2267 and 2 for all others.
2268
2269 This is purely to save memory - each supported CPU adds
2270 approximately eight kilobytes to the kernel image. For best
2271 performance should round up your number of processors to the next
2272 power of two.
2273
2274 config MIPS_PERF_SHARED_TC_COUNTERS
2275 bool
2276
2277 #
2278 # Timer Interrupt Frequency Configuration
2279 #
2280
2281 choice
2282 prompt "Timer frequency"
2283 default HZ_250
2284 help
2285 Allows the configuration of the timer frequency.
2286
2287 config HZ_48
2288 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2289
2290 config HZ_100
2291 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2292
2293 config HZ_128
2294 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2295
2296 config HZ_250
2297 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2298
2299 config HZ_256
2300 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2301
2302 config HZ_1000
2303 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2304
2305 config HZ_1024
2306 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2307
2308 endchoice
2309
2310 config SYS_SUPPORTS_48HZ
2311 bool
2312
2313 config SYS_SUPPORTS_100HZ
2314 bool
2315
2316 config SYS_SUPPORTS_128HZ
2317 bool
2318
2319 config SYS_SUPPORTS_250HZ
2320 bool
2321
2322 config SYS_SUPPORTS_256HZ
2323 bool
2324
2325 config SYS_SUPPORTS_1000HZ
2326 bool
2327
2328 config SYS_SUPPORTS_1024HZ
2329 bool
2330
2331 config SYS_SUPPORTS_ARBIT_HZ
2332 bool
2333 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2334 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2335 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2336 !SYS_SUPPORTS_1024HZ
2337
2338 config HZ
2339 int
2340 default 48 if HZ_48
2341 default 100 if HZ_100
2342 default 128 if HZ_128
2343 default 250 if HZ_250
2344 default 256 if HZ_256
2345 default 1000 if HZ_1000
2346 default 1024 if HZ_1024
2347
2348 source "kernel/Kconfig.preempt"
2349
2350 config KEXEC
2351 bool "Kexec system call (EXPERIMENTAL)"
2352 depends on EXPERIMENTAL
2353 help
2354 kexec is a system call that implements the ability to shutdown your
2355 current kernel, and to start another kernel. It is like a reboot
2356 but it is independent of the system firmware. And like a reboot
2357 you can start any kernel with it, not just Linux.
2358
2359 The name comes from the similarity to the exec system call.
2360
2361 It is an ongoing process to be certain the hardware in a machine
2362 is properly shutdown, so do not be surprised if this code does not
2363 initially work for you. It may help to enable device hotplugging
2364 support. As of this writing the exact hardware interface is
2365 strongly in flux, so no good recommendation can be made.
2366
2367 config SECCOMP
2368 bool "Enable seccomp to safely compute untrusted bytecode"
2369 depends on PROC_FS
2370 default y
2371 help
2372 This kernel feature is useful for number crunching applications
2373 that may need to compute untrusted bytecode during their
2374 execution. By using pipes or other transports made available to
2375 the process as file descriptors supporting the read/write
2376 syscalls, it's possible to isolate those applications in
2377 their own address space using seccomp. Once seccomp is
2378 enabled via /proc/<pid>/seccomp, it cannot be disabled
2379 and the task is only allowed to execute a few safe syscalls
2380 defined by each seccomp mode.
2381
2382 If unsure, say Y. Only embedded should say N here.
2383
2384 config USE_OF
2385 bool
2386 select OF
2387 select OF_EARLY_FLATTREE
2388 select IRQ_DOMAIN
2389
2390 endmenu
2391
2392 config LOCKDEP_SUPPORT
2393 bool
2394 default y
2395
2396 config STACKTRACE_SUPPORT
2397 bool
2398 default y
2399
2400 source "init/Kconfig"
2401
2402 source "kernel/Kconfig.freezer"
2403
2404 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2405
2406 config HW_HAS_EISA
2407 bool
2408 config HW_HAS_PCI
2409 bool
2410
2411 config PCI
2412 bool "Support for PCI controller"
2413 depends on HW_HAS_PCI
2414 select PCI_DOMAINS
2415 select GENERIC_PCI_IOMAP
2416 select NO_GENERIC_PCI_IOPORT_MAP
2417 help
2418 Find out whether you have a PCI motherboard. PCI is the name of a
2419 bus system, i.e. the way the CPU talks to the other stuff inside
2420 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2421 say Y, otherwise N.
2422
2423 config PCI_DOMAINS
2424 bool
2425
2426 source "drivers/pci/Kconfig"
2427
2428 source "drivers/pci/pcie/Kconfig"
2429
2430 #
2431 # ISA support is now enabled via select. Too many systems still have the one
2432 # or other ISA chip on the board that users don't know about so don't expect
2433 # users to choose the right thing ...
2434 #
2435 config ISA
2436 bool
2437
2438 config EISA
2439 bool "EISA support"
2440 depends on HW_HAS_EISA
2441 select ISA
2442 select GENERIC_ISA_DMA
2443 ---help---
2444 The Extended Industry Standard Architecture (EISA) bus was
2445 developed as an open alternative to the IBM MicroChannel bus.
2446
2447 The EISA bus provided some of the features of the IBM MicroChannel
2448 bus while maintaining backward compatibility with cards made for
2449 the older ISA bus. The EISA bus saw limited use between 1988 and
2450 1995 when it was made obsolete by the PCI bus.
2451
2452 Say Y here if you are building a kernel for an EISA-based machine.
2453
2454 Otherwise, say N.
2455
2456 source "drivers/eisa/Kconfig"
2457
2458 config TC
2459 bool "TURBOchannel support"
2460 depends on MACH_DECSTATION
2461 help
2462 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2463 processors. TURBOchannel programming specifications are available
2464 at:
2465 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2466 and:
2467 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2468 Linux driver support status is documented at:
2469 <http://www.linux-mips.org/wiki/DECstation>
2470
2471 config MMU
2472 bool
2473 default y
2474
2475 config I8253
2476 bool
2477 select CLKSRC_I8253
2478 select CLKEVT_I8253
2479 select MIPS_EXTERNAL_TIMER
2480
2481 config ZONE_DMA32
2482 bool
2483
2484 source "drivers/pcmcia/Kconfig"
2485
2486 source "drivers/pci/hotplug/Kconfig"
2487
2488 config RAPIDIO
2489 bool "RapidIO support"
2490 depends on PCI
2491 default n
2492 help
2493 If you say Y here, the kernel will include drivers and
2494 infrastructure code to support RapidIO interconnect devices.
2495
2496 source "drivers/rapidio/Kconfig"
2497
2498 endmenu
2499
2500 menu "Executable file formats"
2501
2502 source "fs/Kconfig.binfmt"
2503
2504 config TRAD_SIGNALS
2505 bool
2506
2507 config MIPS32_COMPAT
2508 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2509 depends on 64BIT
2510 help
2511 Select this option if you want Linux/MIPS 32-bit binary
2512 compatibility. Since all software available for Linux/MIPS is
2513 currently 32-bit you should say Y here.
2514
2515 config COMPAT
2516 bool
2517 depends on MIPS32_COMPAT
2518 select ARCH_WANT_OLD_COMPAT_IPC
2519 default y
2520
2521 config SYSVIPC_COMPAT
2522 bool
2523 depends on COMPAT && SYSVIPC
2524 default y
2525
2526 config MIPS32_O32
2527 bool "Kernel support for o32 binaries"
2528 depends on MIPS32_COMPAT
2529 help
2530 Select this option if you want to run o32 binaries. These are pure
2531 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2532 existing binaries are in this format.
2533
2534 If unsure, say Y.
2535
2536 config MIPS32_N32
2537 bool "Kernel support for n32 binaries"
2538 depends on MIPS32_COMPAT
2539 help
2540 Select this option if you want to run n32 binaries. These are
2541 64-bit binaries using 32-bit quantities for addressing and certain
2542 data that would normally be 64-bit. They are used in special
2543 cases.
2544
2545 If unsure, say N.
2546
2547 config BINFMT_ELF32
2548 bool
2549 default y if MIPS32_O32 || MIPS32_N32
2550
2551 endmenu
2552
2553 menu "Power management options"
2554
2555 config ARCH_HIBERNATION_POSSIBLE
2556 def_bool y
2557 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2558
2559 config ARCH_SUSPEND_POSSIBLE
2560 def_bool y
2561 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2562
2563 source "kernel/power/Kconfig"
2564
2565 endmenu
2566
2567 source "arch/mips/kernel/cpufreq/Kconfig"
2568
2569 source "net/Kconfig"
2570
2571 source "drivers/Kconfig"
2572
2573 source "fs/Kconfig"
2574
2575 source "arch/mips/Kconfig.debug"
2576
2577 source "security/Kconfig"
2578
2579 source "crypto/Kconfig"
2580
2581 source "lib/Kconfig"
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