atomic64_test: simplify the #ifdef for atomic64_dec_if_positive() test
[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 ARCH_BINFMT_ELF_RANDOMIZE_PIE
21 select RTC_LIB if !MACH_LOONGSON
22 select GENERIC_ATOMIC64 if !64BIT
23 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
24 select HAVE_DMA_ATTRS
25 select HAVE_DMA_API_DEBUG
26 select HAVE_GENERIC_HARDIRQS
27 select GENERIC_IRQ_PROBE
28 select GENERIC_IRQ_SHOW
29 select HAVE_ARCH_JUMP_LABEL
30 select IRQ_FORCED_THREADING
31 select HAVE_MEMBLOCK
32 select HAVE_MEMBLOCK_NODE_MAP
33 select ARCH_DISCARD_MEMBLOCK
34 select GENERIC_SMP_IDLE_THREAD
35 select BUILDTIME_EXTABLE_SORT
36 select GENERIC_CLOCKEVENTS
37 select GENERIC_CMOS_UPDATE
38
39 menu "Machine selection"
40
41 config ZONE_DMA
42 bool
43
44 choice
45 prompt "System type"
46 default SGI_IP22
47
48 config MIPS_ALCHEMY
49 bool "Alchemy processor based machines"
50 select 64BIT_PHYS_ADDR
51 select CEVT_R4K_LIB
52 select CSRC_R4K_LIB
53 select IRQ_CPU
54 select SYS_HAS_CPU_MIPS32_R1
55 select SYS_SUPPORTS_32BIT_KERNEL
56 select SYS_SUPPORTS_APM_EMULATION
57 select GENERIC_GPIO
58 select ARCH_WANT_OPTIONAL_GPIOLIB
59 select SYS_SUPPORTS_ZBOOT
60 select USB_ARCH_HAS_OHCI
61 select USB_ARCH_HAS_EHCI
62
63 config AR7
64 bool "Texas Instruments AR7"
65 select BOOT_ELF32
66 select DMA_NONCOHERENT
67 select CEVT_R4K
68 select CSRC_R4K
69 select IRQ_CPU
70 select NO_EXCEPT_FILL
71 select SWAP_IO_SPACE
72 select SYS_HAS_CPU_MIPS32_R1
73 select SYS_HAS_EARLY_PRINTK
74 select SYS_SUPPORTS_32BIT_KERNEL
75 select SYS_SUPPORTS_LITTLE_ENDIAN
76 select SYS_SUPPORTS_ZBOOT_UART16550
77 select ARCH_REQUIRE_GPIOLIB
78 select VLYNQ
79 help
80 Support for the Texas Instruments AR7 System-on-a-Chip
81 family: TNETD7100, 7200 and 7300.
82
83 config ATH79
84 bool "Atheros AR71XX/AR724X/AR913X based boards"
85 select ARCH_REQUIRE_GPIOLIB
86 select BOOT_RAW
87 select CEVT_R4K
88 select CSRC_R4K
89 select DMA_NONCOHERENT
90 select IRQ_CPU
91 select MIPS_MACHINE
92 select SYS_HAS_CPU_MIPS32_R2
93 select SYS_HAS_EARLY_PRINTK
94 select SYS_SUPPORTS_32BIT_KERNEL
95 select SYS_SUPPORTS_BIG_ENDIAN
96 help
97 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
98
99 config BCM47XX
100 bool "Broadcom BCM47XX based boards"
101 select CEVT_R4K
102 select CSRC_R4K
103 select DMA_NONCOHERENT
104 select HW_HAS_PCI
105 select IRQ_CPU
106 select SYS_SUPPORTS_32BIT_KERNEL
107 select SYS_SUPPORTS_LITTLE_ENDIAN
108 select GENERIC_GPIO
109 select SYS_HAS_EARLY_PRINTK
110 select CFE
111 help
112 Support for BCM47XX based boards
113
114 config BCM63XX
115 bool "Broadcom BCM63XX based boards"
116 select CEVT_R4K
117 select CSRC_R4K
118 select DMA_NONCOHERENT
119 select IRQ_CPU
120 select SYS_HAS_CPU_MIPS32_R1
121 select SYS_SUPPORTS_32BIT_KERNEL
122 select SYS_SUPPORTS_BIG_ENDIAN
123 select SYS_HAS_EARLY_PRINTK
124 select SWAP_IO_SPACE
125 select ARCH_REQUIRE_GPIOLIB
126 help
127 Support for BCM63XX based boards
128
129 config MIPS_COBALT
130 bool "Cobalt Server"
131 select CEVT_R4K
132 select CSRC_R4K
133 select CEVT_GT641XX
134 select DMA_NONCOHERENT
135 select HW_HAS_PCI
136 select I8253
137 select I8259
138 select IRQ_CPU
139 select IRQ_GT641XX
140 select PCI_GT64XXX_PCI0
141 select PCI
142 select SYS_HAS_CPU_NEVADA
143 select SYS_HAS_EARLY_PRINTK
144 select SYS_SUPPORTS_32BIT_KERNEL
145 select SYS_SUPPORTS_64BIT_KERNEL
146 select SYS_SUPPORTS_LITTLE_ENDIAN
147
148 config MACH_DECSTATION
149 bool "DECstations"
150 select BOOT_ELF32
151 select CEVT_DS1287
152 select CEVT_R4K
153 select CSRC_IOASIC
154 select CSRC_R4K
155 select CPU_DADDI_WORKAROUNDS if 64BIT
156 select CPU_R4000_WORKAROUNDS if 64BIT
157 select CPU_R4400_WORKAROUNDS if 64BIT
158 select DMA_NONCOHERENT
159 select NO_IOPORT
160 select IRQ_CPU
161 select SYS_HAS_CPU_R3000
162 select SYS_HAS_CPU_R4X00
163 select SYS_SUPPORTS_32BIT_KERNEL
164 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
165 select SYS_SUPPORTS_LITTLE_ENDIAN
166 select SYS_SUPPORTS_128HZ
167 select SYS_SUPPORTS_256HZ
168 select SYS_SUPPORTS_1024HZ
169 help
170 This enables support for DEC's MIPS based workstations. For details
171 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
172 DECstation porting pages on <http://decstation.unix-ag.org/>.
173
174 If you have one of the following DECstation Models you definitely
175 want to choose R4xx0 for the CPU Type:
176
177 DECstation 5000/50
178 DECstation 5000/150
179 DECstation 5000/260
180 DECsystem 5900/260
181
182 otherwise choose R3000.
183
184 config MACH_JAZZ
185 bool "Jazz family of machines"
186 select ARC
187 select ARC32
188 select ARCH_MAY_HAVE_PC_FDC
189 select CEVT_R4K
190 select CSRC_R4K
191 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
192 select GENERIC_ISA_DMA
193 select HAVE_PCSPKR_PLATFORM
194 select IRQ_CPU
195 select I8253
196 select I8259
197 select ISA
198 select SYS_HAS_CPU_R4X00
199 select SYS_SUPPORTS_32BIT_KERNEL
200 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
201 select SYS_SUPPORTS_100HZ
202 help
203 This a family of machines based on the MIPS R4030 chipset which was
204 used by several vendors to build RISC/os and Windows NT workstations.
205 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
206 Olivetti M700-10 workstations.
207
208 config MACH_JZ4740
209 bool "Ingenic JZ4740 based machines"
210 select SYS_HAS_CPU_MIPS32_R1
211 select SYS_SUPPORTS_32BIT_KERNEL
212 select SYS_SUPPORTS_LITTLE_ENDIAN
213 select DMA_NONCOHERENT
214 select IRQ_CPU
215 select GENERIC_GPIO
216 select ARCH_REQUIRE_GPIOLIB
217 select SYS_HAS_EARLY_PRINTK
218 select HAVE_PWM
219 select HAVE_CLK
220 select GENERIC_IRQ_CHIP
221
222 config LANTIQ
223 bool "Lantiq based platforms"
224 select DMA_NONCOHERENT
225 select IRQ_CPU
226 select CEVT_R4K
227 select CSRC_R4K
228 select SYS_HAS_CPU_MIPS32_R1
229 select SYS_HAS_CPU_MIPS32_R2
230 select SYS_SUPPORTS_BIG_ENDIAN
231 select SYS_SUPPORTS_32BIT_KERNEL
232 select SYS_SUPPORTS_MULTITHREADING
233 select SYS_HAS_EARLY_PRINTK
234 select ARCH_REQUIRE_GPIOLIB
235 select SWAP_IO_SPACE
236 select BOOT_RAW
237 select HAVE_MACH_CLKDEV
238 select CLKDEV_LOOKUP
239 select USE_OF
240
241 config LASAT
242 bool "LASAT Networks platforms"
243 select CEVT_R4K
244 select CSRC_R4K
245 select DMA_NONCOHERENT
246 select SYS_HAS_EARLY_PRINTK
247 select HW_HAS_PCI
248 select IRQ_CPU
249 select PCI_GT64XXX_PCI0
250 select MIPS_NILE4
251 select R5000_CPU_SCACHE
252 select SYS_HAS_CPU_R5000
253 select SYS_SUPPORTS_32BIT_KERNEL
254 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
255 select SYS_SUPPORTS_LITTLE_ENDIAN
256
257 config MACH_LOONGSON
258 bool "Loongson family of machines"
259 select SYS_SUPPORTS_ZBOOT
260 help
261 This enables the support of Loongson family of machines.
262
263 Loongson is a family of general-purpose MIPS-compatible CPUs.
264 developed at Institute of Computing Technology (ICT),
265 Chinese Academy of Sciences (CAS) in the People's Republic
266 of China. The chief architect is Professor Weiwu Hu.
267
268 config MIPS_MALTA
269 bool "MIPS Malta board"
270 select ARCH_MAY_HAVE_PC_FDC
271 select BOOT_ELF32
272 select BOOT_RAW
273 select CEVT_R4K
274 select CSRC_R4K
275 select DMA_NONCOHERENT
276 select GENERIC_ISA_DMA
277 select HAVE_PCSPKR_PLATFORM
278 select IRQ_CPU
279 select IRQ_GIC
280 select HW_HAS_PCI
281 select I8253
282 select I8259
283 select MIPS_BOARDS_GEN
284 select MIPS_BONITO64
285 select MIPS_CPU_SCACHE
286 select PCI_GT64XXX_PCI0
287 select MIPS_MSC
288 select SWAP_IO_SPACE
289 select SYS_HAS_CPU_MIPS32_R1
290 select SYS_HAS_CPU_MIPS32_R2
291 select SYS_HAS_CPU_MIPS64_R1
292 select SYS_HAS_CPU_MIPS64_R2
293 select SYS_HAS_CPU_NEVADA
294 select SYS_HAS_CPU_RM7000
295 select SYS_HAS_EARLY_PRINTK
296 select SYS_SUPPORTS_32BIT_KERNEL
297 select SYS_SUPPORTS_64BIT_KERNEL
298 select SYS_SUPPORTS_BIG_ENDIAN
299 select SYS_SUPPORTS_LITTLE_ENDIAN
300 select SYS_SUPPORTS_MIPS_CMP
301 select SYS_SUPPORTS_MULTITHREADING
302 select SYS_SUPPORTS_SMARTMIPS
303 select SYS_SUPPORTS_ZBOOT
304 help
305 This enables support for the MIPS Technologies Malta evaluation
306 board.
307
308 config MIPS_SIM
309 bool 'MIPS simulator (MIPSsim)'
310 select CEVT_R4K
311 select CSRC_R4K
312 select DMA_NONCOHERENT
313 select SYS_HAS_EARLY_PRINTK
314 select IRQ_CPU
315 select BOOT_RAW
316 select SYS_HAS_CPU_MIPS32_R1
317 select SYS_HAS_CPU_MIPS32_R2
318 select SYS_HAS_EARLY_PRINTK
319 select SYS_SUPPORTS_32BIT_KERNEL
320 select SYS_SUPPORTS_BIG_ENDIAN
321 select SYS_SUPPORTS_MULTITHREADING
322 select SYS_SUPPORTS_LITTLE_ENDIAN
323 help
324 This option enables support for MIPS Technologies MIPSsim software
325 emulator.
326
327 config NEC_MARKEINS
328 bool "NEC EMMA2RH Mark-eins board"
329 select SOC_EMMA2RH
330 select HW_HAS_PCI
331 help
332 This enables support for the NEC Electronics Mark-eins boards.
333
334 config MACH_VR41XX
335 bool "NEC VR4100 series based machines"
336 select CEVT_R4K
337 select CSRC_R4K
338 select SYS_HAS_CPU_VR41XX
339 select ARCH_REQUIRE_GPIOLIB
340
341 config NXP_STB220
342 bool "NXP STB220 board"
343 select SOC_PNX833X
344 help
345 Support for NXP Semiconductors STB220 Development Board.
346
347 config NXP_STB225
348 bool "NXP 225 board"
349 select SOC_PNX833X
350 select SOC_PNX8335
351 help
352 Support for NXP Semiconductors STB225 Development Board.
353
354 config PNX8550_JBS
355 bool "NXP PNX8550 based JBS board"
356 select PNX8550
357 select SYS_SUPPORTS_LITTLE_ENDIAN
358
359 config PNX8550_STB810
360 bool "NXP PNX8550 based STB810 board"
361 select PNX8550
362 select SYS_SUPPORTS_LITTLE_ENDIAN
363
364 config PMC_MSP
365 bool "PMC-Sierra MSP chipsets"
366 depends on EXPERIMENTAL
367 select CEVT_R4K
368 select CSRC_R4K
369 select DMA_NONCOHERENT
370 select SWAP_IO_SPACE
371 select NO_EXCEPT_FILL
372 select BOOT_RAW
373 select SYS_HAS_CPU_MIPS32_R1
374 select SYS_HAS_CPU_MIPS32_R2
375 select SYS_SUPPORTS_32BIT_KERNEL
376 select SYS_SUPPORTS_BIG_ENDIAN
377 select IRQ_CPU
378 select SERIAL_8250
379 select SERIAL_8250_CONSOLE
380 help
381 This adds support for the PMC-Sierra family of Multi-Service
382 Processor System-On-A-Chips. These parts include a number
383 of integrated peripherals, interfaces and DSPs in addition to
384 a variety of MIPS cores.
385
386 config PMC_YOSEMITE
387 bool "PMC-Sierra Yosemite eval board"
388 select CEVT_R4K
389 select CSRC_R4K
390 select DMA_COHERENT
391 select HW_HAS_PCI
392 select IRQ_CPU
393 select IRQ_CPU_RM7K
394 select IRQ_CPU_RM9K
395 select SWAP_IO_SPACE
396 select SYS_HAS_CPU_RM9000
397 select SYS_HAS_EARLY_PRINTK
398 select SYS_SUPPORTS_32BIT_KERNEL
399 select SYS_SUPPORTS_64BIT_KERNEL
400 select SYS_SUPPORTS_BIG_ENDIAN
401 select SYS_SUPPORTS_HIGHMEM
402 select SYS_SUPPORTS_SMP
403 help
404 Yosemite is an evaluation board for the RM9000x2 processor
405 manufactured by PMC-Sierra.
406
407 config POWERTV
408 bool "Cisco PowerTV"
409 select BOOT_ELF32
410 select CEVT_R4K
411 select CPU_MIPSR2_IRQ_VI
412 select CPU_MIPSR2_IRQ_EI
413 select CSRC_POWERTV
414 select DMA_NONCOHERENT
415 select HW_HAS_PCI
416 select SYS_HAS_EARLY_PRINTK
417 select SYS_HAS_CPU_MIPS32_R2
418 select SYS_SUPPORTS_32BIT_KERNEL
419 select SYS_SUPPORTS_BIG_ENDIAN
420 select SYS_SUPPORTS_HIGHMEM
421 select USB_OHCI_LITTLE_ENDIAN
422 help
423 This enables support for the Cisco PowerTV Platform.
424
425 config SGI_IP22
426 bool "SGI IP22 (Indy/Indigo2)"
427 select ARC
428 select ARC32
429 select BOOT_ELF32
430 select CEVT_R4K
431 select CSRC_R4K
432 select DEFAULT_SGI_PARTITION
433 select DMA_NONCOHERENT
434 select HW_HAS_EISA
435 select I8253
436 select I8259
437 select IP22_CPU_SCACHE
438 select IRQ_CPU
439 select GENERIC_ISA_DMA_SUPPORT_BROKEN
440 select SGI_HAS_I8042
441 select SGI_HAS_INDYDOG
442 select SGI_HAS_HAL2
443 select SGI_HAS_SEEQ
444 select SGI_HAS_WD93
445 select SGI_HAS_ZILOG
446 select SWAP_IO_SPACE
447 select SYS_HAS_CPU_R4X00
448 select SYS_HAS_CPU_R5000
449 #
450 # Disable EARLY_PRINTK for now since it leads to overwritten prom
451 # memory during early boot on some machines.
452 #
453 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
454 # for a more details discussion
455 #
456 # select SYS_HAS_EARLY_PRINTK
457 select SYS_SUPPORTS_32BIT_KERNEL
458 select SYS_SUPPORTS_64BIT_KERNEL
459 select SYS_SUPPORTS_BIG_ENDIAN
460 help
461 This are the SGI Indy, Challenge S and Indigo2, as well as certain
462 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
463 that runs on these, say Y here.
464
465 config SGI_IP27
466 bool "SGI IP27 (Origin200/2000)"
467 select ARC
468 select ARC64
469 select BOOT_ELF64
470 select DEFAULT_SGI_PARTITION
471 select DMA_COHERENT
472 select SYS_HAS_EARLY_PRINTK
473 select HW_HAS_PCI
474 select NR_CPUS_DEFAULT_64
475 select SYS_HAS_CPU_R10000
476 select SYS_SUPPORTS_64BIT_KERNEL
477 select SYS_SUPPORTS_BIG_ENDIAN
478 select SYS_SUPPORTS_NUMA
479 select SYS_SUPPORTS_SMP
480 help
481 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
482 workstations. To compile a Linux kernel that runs on these, say Y
483 here.
484
485 config SGI_IP28
486 bool "SGI IP28 (Indigo2 R10k) (EXPERIMENTAL)"
487 depends on EXPERIMENTAL
488 select ARC
489 select ARC64
490 select BOOT_ELF64
491 select CEVT_R4K
492 select CSRC_R4K
493 select DEFAULT_SGI_PARTITION
494 select DMA_NONCOHERENT
495 select GENERIC_ISA_DMA_SUPPORT_BROKEN
496 select IRQ_CPU
497 select HW_HAS_EISA
498 select I8253
499 select I8259
500 select SGI_HAS_I8042
501 select SGI_HAS_INDYDOG
502 select SGI_HAS_HAL2
503 select SGI_HAS_SEEQ
504 select SGI_HAS_WD93
505 select SGI_HAS_ZILOG
506 select SWAP_IO_SPACE
507 select SYS_HAS_CPU_R10000
508 #
509 # Disable EARLY_PRINTK for now since it leads to overwritten prom
510 # memory during early boot on some machines.
511 #
512 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
513 # for a more details discussion
514 #
515 # select SYS_HAS_EARLY_PRINTK
516 select SYS_SUPPORTS_64BIT_KERNEL
517 select SYS_SUPPORTS_BIG_ENDIAN
518 help
519 This is the SGI Indigo2 with R10000 processor. To compile a Linux
520 kernel that runs on these, say Y here.
521
522 config SGI_IP32
523 bool "SGI IP32 (O2)"
524 select ARC
525 select ARC32
526 select BOOT_ELF32
527 select CEVT_R4K
528 select CSRC_R4K
529 select DMA_NONCOHERENT
530 select HW_HAS_PCI
531 select IRQ_CPU
532 select R5000_CPU_SCACHE
533 select RM7000_CPU_SCACHE
534 select SYS_HAS_CPU_R5000
535 select SYS_HAS_CPU_R10000 if BROKEN
536 select SYS_HAS_CPU_RM7000
537 select SYS_HAS_CPU_NEVADA
538 select SYS_SUPPORTS_64BIT_KERNEL
539 select SYS_SUPPORTS_BIG_ENDIAN
540 help
541 If you want this kernel to run on SGI O2 workstation, say Y here.
542
543 config SIBYTE_CRHINE
544 bool "Sibyte BCM91120C-CRhine"
545 depends on EXPERIMENTAL
546 select BOOT_ELF32
547 select DMA_COHERENT
548 select SIBYTE_BCM1120
549 select SWAP_IO_SPACE
550 select SYS_HAS_CPU_SB1
551 select SYS_SUPPORTS_BIG_ENDIAN
552 select SYS_SUPPORTS_LITTLE_ENDIAN
553
554 config SIBYTE_CARMEL
555 bool "Sibyte BCM91120x-Carmel"
556 depends on EXPERIMENTAL
557 select BOOT_ELF32
558 select DMA_COHERENT
559 select SIBYTE_BCM1120
560 select SWAP_IO_SPACE
561 select SYS_HAS_CPU_SB1
562 select SYS_SUPPORTS_BIG_ENDIAN
563 select SYS_SUPPORTS_LITTLE_ENDIAN
564
565 config SIBYTE_CRHONE
566 bool "Sibyte BCM91125C-CRhone"
567 depends on EXPERIMENTAL
568 select BOOT_ELF32
569 select DMA_COHERENT
570 select SIBYTE_BCM1125
571 select SWAP_IO_SPACE
572 select SYS_HAS_CPU_SB1
573 select SYS_SUPPORTS_BIG_ENDIAN
574 select SYS_SUPPORTS_HIGHMEM
575 select SYS_SUPPORTS_LITTLE_ENDIAN
576
577 config SIBYTE_RHONE
578 bool "Sibyte BCM91125E-Rhone"
579 depends on EXPERIMENTAL
580 select BOOT_ELF32
581 select DMA_COHERENT
582 select SIBYTE_BCM1125H
583 select SWAP_IO_SPACE
584 select SYS_HAS_CPU_SB1
585 select SYS_SUPPORTS_BIG_ENDIAN
586 select SYS_SUPPORTS_LITTLE_ENDIAN
587
588 config SIBYTE_SWARM
589 bool "Sibyte BCM91250A-SWARM"
590 select BOOT_ELF32
591 select DMA_COHERENT
592 select HAVE_PATA_PLATFORM
593 select NR_CPUS_DEFAULT_2
594 select SIBYTE_SB1250
595 select SWAP_IO_SPACE
596 select SYS_HAS_CPU_SB1
597 select SYS_SUPPORTS_BIG_ENDIAN
598 select SYS_SUPPORTS_HIGHMEM
599 select SYS_SUPPORTS_LITTLE_ENDIAN
600 select ZONE_DMA32 if 64BIT
601
602 config SIBYTE_LITTLESUR
603 bool "Sibyte BCM91250C2-LittleSur"
604 depends on EXPERIMENTAL
605 select BOOT_ELF32
606 select DMA_COHERENT
607 select HAVE_PATA_PLATFORM
608 select NR_CPUS_DEFAULT_2
609 select SIBYTE_SB1250
610 select SWAP_IO_SPACE
611 select SYS_HAS_CPU_SB1
612 select SYS_SUPPORTS_BIG_ENDIAN
613 select SYS_SUPPORTS_HIGHMEM
614 select SYS_SUPPORTS_LITTLE_ENDIAN
615
616 config SIBYTE_SENTOSA
617 bool "Sibyte BCM91250E-Sentosa"
618 depends on EXPERIMENTAL
619 select BOOT_ELF32
620 select DMA_COHERENT
621 select NR_CPUS_DEFAULT_2
622 select SIBYTE_SB1250
623 select SWAP_IO_SPACE
624 select SYS_HAS_CPU_SB1
625 select SYS_SUPPORTS_BIG_ENDIAN
626 select SYS_SUPPORTS_LITTLE_ENDIAN
627
628 config SIBYTE_BIGSUR
629 bool "Sibyte BCM91480B-BigSur"
630 select BOOT_ELF32
631 select DMA_COHERENT
632 select NR_CPUS_DEFAULT_4
633 select SIBYTE_BCM1x80
634 select SWAP_IO_SPACE
635 select SYS_HAS_CPU_SB1
636 select SYS_SUPPORTS_BIG_ENDIAN
637 select SYS_SUPPORTS_HIGHMEM
638 select SYS_SUPPORTS_LITTLE_ENDIAN
639 select ZONE_DMA32 if 64BIT
640
641 config SNI_RM
642 bool "SNI RM200/300/400"
643 select ARC if CPU_LITTLE_ENDIAN
644 select ARC32 if CPU_LITTLE_ENDIAN
645 select SNIPROM if CPU_BIG_ENDIAN
646 select ARCH_MAY_HAVE_PC_FDC
647 select BOOT_ELF32
648 select CEVT_R4K
649 select CSRC_R4K
650 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
651 select DMA_NONCOHERENT
652 select GENERIC_ISA_DMA
653 select HAVE_PCSPKR_PLATFORM
654 select HW_HAS_EISA
655 select HW_HAS_PCI
656 select IRQ_CPU
657 select I8253
658 select I8259
659 select ISA
660 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
661 select SYS_HAS_CPU_R4X00
662 select SYS_HAS_CPU_R5000
663 select SYS_HAS_CPU_R10000
664 select R5000_CPU_SCACHE
665 select SYS_HAS_EARLY_PRINTK
666 select SYS_SUPPORTS_32BIT_KERNEL
667 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
668 select SYS_SUPPORTS_BIG_ENDIAN
669 select SYS_SUPPORTS_HIGHMEM
670 select SYS_SUPPORTS_LITTLE_ENDIAN
671 help
672 The SNI RM200/300/400 are MIPS-based machines manufactured by
673 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
674 Technology and now in turn merged with Fujitsu. Say Y here to
675 support this machine type.
676
677 config MACH_TX39XX
678 bool "Toshiba TX39 series based machines"
679
680 config MACH_TX49XX
681 bool "Toshiba TX49 series based machines"
682
683 config MIKROTIK_RB532
684 bool "Mikrotik RB532 boards"
685 select CEVT_R4K
686 select CSRC_R4K
687 select DMA_NONCOHERENT
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
695 select ARCH_REQUIRE_GPIOLIB
696 help
697 Support the Mikrotik(tm) RouterBoard 532 series,
698 based on the IDT RC32434 SoC.
699
700 config WR_PPMC
701 bool "Wind River PPMC board"
702 select CEVT_R4K
703 select CSRC_R4K
704 select IRQ_CPU
705 select BOOT_ELF32
706 select DMA_NONCOHERENT
707 select HW_HAS_PCI
708 select PCI_GT64XXX_PCI0
709 select SWAP_IO_SPACE
710 select SYS_HAS_CPU_MIPS32_R1
711 select SYS_HAS_CPU_MIPS32_R2
712 select SYS_HAS_CPU_MIPS64_R1
713 select SYS_HAS_CPU_NEVADA
714 select SYS_HAS_CPU_RM7000
715 select SYS_SUPPORTS_32BIT_KERNEL
716 select SYS_SUPPORTS_64BIT_KERNEL
717 select SYS_SUPPORTS_BIG_ENDIAN
718 select SYS_SUPPORTS_LITTLE_ENDIAN
719 help
720 This enables support for the Wind River MIPS32 4KC PPMC evaluation
721 board, which is based on GT64120 bridge chip.
722
723 config CAVIUM_OCTEON_SIMULATOR
724 bool "Cavium Networks Octeon Simulator"
725 select CEVT_R4K
726 select 64BIT_PHYS_ADDR
727 select DMA_COHERENT
728 select SYS_SUPPORTS_64BIT_KERNEL
729 select SYS_SUPPORTS_BIG_ENDIAN
730 select SYS_SUPPORTS_HOTPLUG_CPU
731 select SYS_HAS_CPU_CAVIUM_OCTEON
732 select HOLES_IN_ZONE
733 help
734 The Octeon simulator is software performance model of the Cavium
735 Octeon Processor. It supports simulating Octeon processors on x86
736 hardware.
737
738 config CAVIUM_OCTEON_REFERENCE_BOARD
739 bool "Cavium Networks Octeon reference board"
740 select CEVT_R4K
741 select 64BIT_PHYS_ADDR
742 select DMA_COHERENT
743 select SYS_SUPPORTS_64BIT_KERNEL
744 select SYS_SUPPORTS_BIG_ENDIAN
745 select SYS_SUPPORTS_HOTPLUG_CPU
746 select SYS_HAS_EARLY_PRINTK
747 select SYS_HAS_CPU_CAVIUM_OCTEON
748 select SWAP_IO_SPACE
749 select HW_HAS_PCI
750 select ARCH_SUPPORTS_MSI
751 select ZONE_DMA32
752 select USB_ARCH_HAS_OHCI
753 select USB_ARCH_HAS_EHCI
754 select HOLES_IN_ZONE
755 help
756 This option supports all of the Octeon reference boards from Cavium
757 Networks. It builds a kernel that dynamically determines the Octeon
758 CPU type and supports all known board reference implementations.
759 Some of the supported boards are:
760 EBT3000
761 EBH3000
762 EBH3100
763 Thunder
764 Kodama
765 Hikari
766 Say Y here for most Octeon reference boards.
767
768 config NLM_XLR_BOARD
769 bool "Netlogic XLR/XLS based systems"
770 depends on EXPERIMENTAL
771 select BOOT_ELF32
772 select NLM_COMMON
773 select SYS_HAS_CPU_XLR
774 select SYS_SUPPORTS_SMP
775 select HW_HAS_PCI
776 select SWAP_IO_SPACE
777 select SYS_SUPPORTS_32BIT_KERNEL
778 select SYS_SUPPORTS_64BIT_KERNEL
779 select 64BIT_PHYS_ADDR
780 select SYS_SUPPORTS_BIG_ENDIAN
781 select SYS_SUPPORTS_HIGHMEM
782 select DMA_COHERENT
783 select NR_CPUS_DEFAULT_32
784 select CEVT_R4K
785 select CSRC_R4K
786 select IRQ_CPU
787 select ARCH_SUPPORTS_MSI
788 select ZONE_DMA if 64BIT
789 select SYNC_R4K
790 select SYS_HAS_EARLY_PRINTK
791 help
792 Support for systems based on Netlogic XLR and XLS processors.
793 Say Y here if you have a XLR or XLS based board.
794
795 config NLM_XLP_BOARD
796 bool "Netlogic XLP based systems"
797 depends on EXPERIMENTAL
798 select BOOT_ELF32
799 select NLM_COMMON
800 select SYS_HAS_CPU_XLP
801 select SYS_SUPPORTS_SMP
802 select HW_HAS_PCI
803 select SWAP_IO_SPACE
804 select SYS_SUPPORTS_32BIT_KERNEL
805 select SYS_SUPPORTS_64BIT_KERNEL
806 select 64BIT_PHYS_ADDR
807 select SYS_SUPPORTS_BIG_ENDIAN
808 select SYS_SUPPORTS_LITTLE_ENDIAN
809 select SYS_SUPPORTS_HIGHMEM
810 select DMA_COHERENT
811 select NR_CPUS_DEFAULT_32
812 select CEVT_R4K
813 select CSRC_R4K
814 select IRQ_CPU
815 select ZONE_DMA if 64BIT
816 select SYNC_R4K
817 select SYS_HAS_EARLY_PRINTK
818 help
819 This board is based on Netlogic XLP Processor.
820 Say Y here if you have a XLP based board.
821
822 endchoice
823
824 source "arch/mips/alchemy/Kconfig"
825 source "arch/mips/ath79/Kconfig"
826 source "arch/mips/bcm47xx/Kconfig"
827 source "arch/mips/bcm63xx/Kconfig"
828 source "arch/mips/jazz/Kconfig"
829 source "arch/mips/jz4740/Kconfig"
830 source "arch/mips/lantiq/Kconfig"
831 source "arch/mips/lasat/Kconfig"
832 source "arch/mips/pmc-sierra/Kconfig"
833 source "arch/mips/powertv/Kconfig"
834 source "arch/mips/sgi-ip27/Kconfig"
835 source "arch/mips/sibyte/Kconfig"
836 source "arch/mips/txx9/Kconfig"
837 source "arch/mips/vr41xx/Kconfig"
838 source "arch/mips/cavium-octeon/Kconfig"
839 source "arch/mips/loongson/Kconfig"
840 source "arch/mips/netlogic/Kconfig"
841
842 endmenu
843
844 config RWSEM_GENERIC_SPINLOCK
845 bool
846 default y
847
848 config RWSEM_XCHGADD_ALGORITHM
849 bool
850
851 config ARCH_HAS_ILOG2_U32
852 bool
853 default n
854
855 config ARCH_HAS_ILOG2_U64
856 bool
857 default n
858
859 config GENERIC_HWEIGHT
860 bool
861 default y
862
863 config GENERIC_CALIBRATE_DELAY
864 bool
865 default y
866
867 config SCHED_OMIT_FRAME_POINTER
868 bool
869 default y
870
871 #
872 # Select some configuration options automatically based on user selections.
873 #
874 config ARC
875 bool
876
877 config ARCH_MAY_HAVE_PC_FDC
878 bool
879
880 config BOOT_RAW
881 bool
882
883 config CEVT_BCM1480
884 bool
885
886 config CEVT_DS1287
887 bool
888
889 config CEVT_GT641XX
890 bool
891
892 config CEVT_R4K_LIB
893 bool
894
895 config CEVT_R4K
896 select CEVT_R4K_LIB
897 bool
898
899 config CEVT_SB1250
900 bool
901
902 config CEVT_TXX9
903 bool
904
905 config CSRC_BCM1480
906 bool
907
908 config CSRC_IOASIC
909 bool
910
911 config CSRC_POWERTV
912 bool
913
914 config CSRC_R4K_LIB
915 bool
916
917 config CSRC_R4K
918 select CSRC_R4K_LIB
919 bool
920
921 config CSRC_SB1250
922 bool
923
924 config GPIO_TXX9
925 select GENERIC_GPIO
926 select ARCH_REQUIRE_GPIOLIB
927 bool
928
929 config CFE
930 bool
931
932 config ARCH_DMA_ADDR_T_64BIT
933 def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT
934
935 config DMA_COHERENT
936 bool
937
938 config DMA_NONCOHERENT
939 bool
940 select NEED_DMA_MAP_STATE
941
942 config NEED_DMA_MAP_STATE
943 bool
944
945 config SYS_HAS_EARLY_PRINTK
946 bool
947
948 config HOTPLUG_CPU
949 bool "Support for hot-pluggable CPUs"
950 depends on SMP && HOTPLUG && SYS_SUPPORTS_HOTPLUG_CPU
951 help
952 Say Y here to allow turning CPUs off and on. CPUs can be
953 controlled through /sys/devices/system/cpu.
954 (Note: power management support will enable this option
955 automatically on SMP systems. )
956 Say N if you want to disable CPU hotplug.
957
958 config SYS_SUPPORTS_HOTPLUG_CPU
959 bool
960
961 config I8259
962 bool
963
964 config MIPS_BONITO64
965 bool
966
967 config MIPS_MSC
968 bool
969
970 config MIPS_NILE4
971 bool
972
973 config MIPS_DISABLE_OBSOLETE_IDE
974 bool
975
976 config SYNC_R4K
977 bool
978
979 config MIPS_MACHINE
980 def_bool n
981
982 config NO_IOPORT
983 def_bool n
984
985 config GENERIC_ISA_DMA
986 bool
987 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
988 select ISA_DMA_API
989
990 config GENERIC_ISA_DMA_SUPPORT_BROKEN
991 bool
992 select GENERIC_ISA_DMA
993
994 config ISA_DMA_API
995 bool
996
997 config GENERIC_GPIO
998 bool
999
1000 config HOLES_IN_ZONE
1001 bool
1002
1003 #
1004 # Endianness selection. Sufficiently obscure so many users don't know what to
1005 # answer,so we try hard to limit the available choices. Also the use of a
1006 # choice statement should be more obvious to the user.
1007 #
1008 choice
1009 prompt "Endianness selection"
1010 help
1011 Some MIPS machines can be configured for either little or big endian
1012 byte order. These modes require different kernels and a different
1013 Linux distribution. In general there is one preferred byteorder for a
1014 particular system but some systems are just as commonly used in the
1015 one or the other endianness.
1016
1017 config CPU_BIG_ENDIAN
1018 bool "Big endian"
1019 depends on SYS_SUPPORTS_BIG_ENDIAN
1020
1021 config CPU_LITTLE_ENDIAN
1022 bool "Little endian"
1023 depends on SYS_SUPPORTS_LITTLE_ENDIAN
1024 help
1025
1026 endchoice
1027
1028 config EXPORT_UASM
1029 bool
1030
1031 config SYS_SUPPORTS_APM_EMULATION
1032 bool
1033
1034 config SYS_SUPPORTS_BIG_ENDIAN
1035 bool
1036
1037 config SYS_SUPPORTS_LITTLE_ENDIAN
1038 bool
1039
1040 config SYS_SUPPORTS_HUGETLBFS
1041 bool
1042 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1043 default y
1044
1045 config IRQ_CPU
1046 bool
1047
1048 config IRQ_CPU_RM7K
1049 bool
1050
1051 config IRQ_CPU_RM9K
1052 bool
1053
1054 config IRQ_MSP_SLP
1055 bool
1056
1057 config IRQ_MSP_CIC
1058 bool
1059
1060 config IRQ_TXX9
1061 bool
1062
1063 config IRQ_GT641XX
1064 bool
1065
1066 config IRQ_GIC
1067 bool
1068
1069 config MIPS_BOARDS_GEN
1070 bool
1071
1072 config PCI_GT64XXX_PCI0
1073 bool
1074
1075 config NO_EXCEPT_FILL
1076 bool
1077
1078 config MIPS_RM9122
1079 bool
1080 select SERIAL_RM9000
1081
1082 config SOC_EMMA2RH
1083 bool
1084 select CEVT_R4K
1085 select CSRC_R4K
1086 select DMA_NONCOHERENT
1087 select IRQ_CPU
1088 select SWAP_IO_SPACE
1089 select SYS_HAS_CPU_R5500
1090 select SYS_SUPPORTS_32BIT_KERNEL
1091 select SYS_SUPPORTS_64BIT_KERNEL
1092 select SYS_SUPPORTS_BIG_ENDIAN
1093
1094 config SOC_PNX833X
1095 bool
1096 select CEVT_R4K
1097 select CSRC_R4K
1098 select IRQ_CPU
1099 select DMA_NONCOHERENT
1100 select SYS_HAS_CPU_MIPS32_R2
1101 select SYS_SUPPORTS_32BIT_KERNEL
1102 select SYS_SUPPORTS_LITTLE_ENDIAN
1103 select SYS_SUPPORTS_BIG_ENDIAN
1104 select GENERIC_GPIO
1105 select CPU_MIPSR2_IRQ_VI
1106
1107 config SOC_PNX8335
1108 bool
1109 select SOC_PNX833X
1110
1111 config PNX8550
1112 bool
1113 select SOC_PNX8550
1114
1115 config SOC_PNX8550
1116 bool
1117 select DMA_NONCOHERENT
1118 select HW_HAS_PCI
1119 select SYS_HAS_CPU_MIPS32_R1
1120 select SYS_HAS_EARLY_PRINTK
1121 select SYS_SUPPORTS_32BIT_KERNEL
1122 select GENERIC_GPIO
1123
1124 config SWAP_IO_SPACE
1125 bool
1126
1127 config SERIAL_RM9000
1128 bool
1129
1130 config SGI_HAS_INDYDOG
1131 bool
1132
1133 config SGI_HAS_HAL2
1134 bool
1135
1136 config SGI_HAS_SEEQ
1137 bool
1138
1139 config SGI_HAS_WD93
1140 bool
1141
1142 config SGI_HAS_ZILOG
1143 bool
1144
1145 config SGI_HAS_I8042
1146 bool
1147
1148 config DEFAULT_SGI_PARTITION
1149 bool
1150
1151 config ARC32
1152 bool
1153
1154 config SNIPROM
1155 bool
1156
1157 config BOOT_ELF32
1158 bool
1159
1160 config MIPS_L1_CACHE_SHIFT
1161 int
1162 default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL
1163 default "6" if MIPS_CPU_SCACHE
1164 default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON
1165 default "5"
1166
1167 config HAVE_STD_PC_SERIAL_PORT
1168 bool
1169
1170 config ARC_CONSOLE
1171 bool "ARC console support"
1172 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1173
1174 config ARC_MEMORY
1175 bool
1176 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1177 default y
1178
1179 config ARC_PROMLIB
1180 bool
1181 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1182 default y
1183
1184 config ARC64
1185 bool
1186
1187 config BOOT_ELF64
1188 bool
1189
1190 menu "CPU selection"
1191
1192 choice
1193 prompt "CPU type"
1194 default CPU_R4X00
1195
1196 config CPU_LOONGSON2E
1197 bool "Loongson 2E"
1198 depends on SYS_HAS_CPU_LOONGSON2E
1199 select CPU_LOONGSON2
1200 help
1201 The Loongson 2E processor implements the MIPS III instruction set
1202 with many extensions.
1203
1204 It has an internal FPGA northbridge, which is compatible to
1205 bonito64.
1206
1207 config CPU_LOONGSON2F
1208 bool "Loongson 2F"
1209 depends on SYS_HAS_CPU_LOONGSON2F
1210 select CPU_LOONGSON2
1211 select GENERIC_GPIO
1212 select ARCH_REQUIRE_GPIOLIB
1213 help
1214 The Loongson 2F processor implements the MIPS III instruction set
1215 with many extensions.
1216
1217 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1218 have a similar programming interface with FPGA northbridge used in
1219 Loongson2E.
1220
1221 config CPU_MIPS32_R1
1222 bool "MIPS32 Release 1"
1223 depends on SYS_HAS_CPU_MIPS32_R1
1224 select CPU_HAS_PREFETCH
1225 select CPU_SUPPORTS_32BIT_KERNEL
1226 select CPU_SUPPORTS_HIGHMEM
1227 help
1228 Choose this option to build a kernel for release 1 or later of the
1229 MIPS32 architecture. Most modern embedded systems with a 32-bit
1230 MIPS processor are based on a MIPS32 processor. If you know the
1231 specific type of processor in your system, choose those that one
1232 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1233 Release 2 of the MIPS32 architecture is available since several
1234 years so chances are you even have a MIPS32 Release 2 processor
1235 in which case you should choose CPU_MIPS32_R2 instead for better
1236 performance.
1237
1238 config CPU_MIPS32_R2
1239 bool "MIPS32 Release 2"
1240 depends on SYS_HAS_CPU_MIPS32_R2
1241 select CPU_HAS_PREFETCH
1242 select CPU_SUPPORTS_32BIT_KERNEL
1243 select CPU_SUPPORTS_HIGHMEM
1244 help
1245 Choose this option to build a kernel for release 2 or later of the
1246 MIPS32 architecture. Most modern embedded systems with a 32-bit
1247 MIPS processor are based on a MIPS32 processor. If you know the
1248 specific type of processor in your system, choose those that one
1249 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1250
1251 config CPU_MIPS64_R1
1252 bool "MIPS64 Release 1"
1253 depends on SYS_HAS_CPU_MIPS64_R1
1254 select CPU_HAS_PREFETCH
1255 select CPU_SUPPORTS_32BIT_KERNEL
1256 select CPU_SUPPORTS_64BIT_KERNEL
1257 select CPU_SUPPORTS_HIGHMEM
1258 select CPU_SUPPORTS_HUGEPAGES
1259 help
1260 Choose this option to build a kernel for release 1 or later of the
1261 MIPS64 architecture. Many modern embedded systems with a 64-bit
1262 MIPS processor are based on a MIPS64 processor. If you know the
1263 specific type of processor in your system, choose those that one
1264 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1265 Release 2 of the MIPS64 architecture is available since several
1266 years so chances are you even have a MIPS64 Release 2 processor
1267 in which case you should choose CPU_MIPS64_R2 instead for better
1268 performance.
1269
1270 config CPU_MIPS64_R2
1271 bool "MIPS64 Release 2"
1272 depends on SYS_HAS_CPU_MIPS64_R2
1273 select CPU_HAS_PREFETCH
1274 select CPU_SUPPORTS_32BIT_KERNEL
1275 select CPU_SUPPORTS_64BIT_KERNEL
1276 select CPU_SUPPORTS_HIGHMEM
1277 select CPU_SUPPORTS_HUGEPAGES
1278 help
1279 Choose this option to build a kernel for release 2 or later of the
1280 MIPS64 architecture. Many modern embedded systems with a 64-bit
1281 MIPS processor are based on a MIPS64 processor. If you know the
1282 specific type of processor in your system, choose those that one
1283 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1284
1285 config CPU_R3000
1286 bool "R3000"
1287 depends on SYS_HAS_CPU_R3000
1288 select CPU_HAS_WB
1289 select CPU_SUPPORTS_32BIT_KERNEL
1290 select CPU_SUPPORTS_HIGHMEM
1291 help
1292 Please make sure to pick the right CPU type. Linux/MIPS is not
1293 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1294 *not* work on R4000 machines and vice versa. However, since most
1295 of the supported machines have an R4000 (or similar) CPU, R4x00
1296 might be a safe bet. If the resulting kernel does not work,
1297 try to recompile with R3000.
1298
1299 config CPU_TX39XX
1300 bool "R39XX"
1301 depends on SYS_HAS_CPU_TX39XX
1302 select CPU_SUPPORTS_32BIT_KERNEL
1303
1304 config CPU_VR41XX
1305 bool "R41xx"
1306 depends on SYS_HAS_CPU_VR41XX
1307 select CPU_SUPPORTS_32BIT_KERNEL
1308 select CPU_SUPPORTS_64BIT_KERNEL
1309 help
1310 The options selects support for the NEC VR4100 series of processors.
1311 Only choose this option if you have one of these processors as a
1312 kernel built with this option will not run on any other type of
1313 processor or vice versa.
1314
1315 config CPU_R4300
1316 bool "R4300"
1317 depends on SYS_HAS_CPU_R4300
1318 select CPU_SUPPORTS_32BIT_KERNEL
1319 select CPU_SUPPORTS_64BIT_KERNEL
1320 help
1321 MIPS Technologies R4300-series processors.
1322
1323 config CPU_R4X00
1324 bool "R4x00"
1325 depends on SYS_HAS_CPU_R4X00
1326 select CPU_SUPPORTS_32BIT_KERNEL
1327 select CPU_SUPPORTS_64BIT_KERNEL
1328 help
1329 MIPS Technologies R4000-series processors other than 4300, including
1330 the R4000, R4400, R4600, and 4700.
1331
1332 config CPU_TX49XX
1333 bool "R49XX"
1334 depends on SYS_HAS_CPU_TX49XX
1335 select CPU_HAS_PREFETCH
1336 select CPU_SUPPORTS_32BIT_KERNEL
1337 select CPU_SUPPORTS_64BIT_KERNEL
1338
1339 config CPU_R5000
1340 bool "R5000"
1341 depends on SYS_HAS_CPU_R5000
1342 select CPU_SUPPORTS_32BIT_KERNEL
1343 select CPU_SUPPORTS_64BIT_KERNEL
1344 help
1345 MIPS Technologies R5000-series processors other than the Nevada.
1346
1347 config CPU_R5432
1348 bool "R5432"
1349 depends on SYS_HAS_CPU_R5432
1350 select CPU_SUPPORTS_32BIT_KERNEL
1351 select CPU_SUPPORTS_64BIT_KERNEL
1352
1353 config CPU_R5500
1354 bool "R5500"
1355 depends on SYS_HAS_CPU_R5500
1356 select CPU_SUPPORTS_32BIT_KERNEL
1357 select CPU_SUPPORTS_64BIT_KERNEL
1358 select CPU_SUPPORTS_HUGEPAGES
1359 help
1360 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1361 instruction set.
1362
1363 config CPU_R6000
1364 bool "R6000"
1365 depends on EXPERIMENTAL
1366 depends on SYS_HAS_CPU_R6000
1367 select CPU_SUPPORTS_32BIT_KERNEL
1368 help
1369 MIPS Technologies R6000 and R6000A series processors. Note these
1370 processors are extremely rare and the support for them is incomplete.
1371
1372 config CPU_NEVADA
1373 bool "RM52xx"
1374 depends on SYS_HAS_CPU_NEVADA
1375 select CPU_SUPPORTS_32BIT_KERNEL
1376 select CPU_SUPPORTS_64BIT_KERNEL
1377 help
1378 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1379
1380 config CPU_R8000
1381 bool "R8000"
1382 depends on EXPERIMENTAL
1383 depends on SYS_HAS_CPU_R8000
1384 select CPU_HAS_PREFETCH
1385 select CPU_SUPPORTS_64BIT_KERNEL
1386 help
1387 MIPS Technologies R8000 processors. Note these processors are
1388 uncommon and the support for them is incomplete.
1389
1390 config CPU_R10000
1391 bool "R10000"
1392 depends on SYS_HAS_CPU_R10000
1393 select CPU_HAS_PREFETCH
1394 select CPU_SUPPORTS_32BIT_KERNEL
1395 select CPU_SUPPORTS_64BIT_KERNEL
1396 select CPU_SUPPORTS_HIGHMEM
1397 help
1398 MIPS Technologies R10000-series processors.
1399
1400 config CPU_RM7000
1401 bool "RM7000"
1402 depends on SYS_HAS_CPU_RM7000
1403 select CPU_HAS_PREFETCH
1404 select CPU_SUPPORTS_32BIT_KERNEL
1405 select CPU_SUPPORTS_64BIT_KERNEL
1406 select CPU_SUPPORTS_HIGHMEM
1407
1408 config CPU_RM9000
1409 bool "RM9000"
1410 depends on SYS_HAS_CPU_RM9000
1411 select CPU_HAS_PREFETCH
1412 select CPU_SUPPORTS_32BIT_KERNEL
1413 select CPU_SUPPORTS_64BIT_KERNEL
1414 select CPU_SUPPORTS_HIGHMEM
1415 select WEAK_ORDERING
1416
1417 config CPU_SB1
1418 bool "SB1"
1419 depends on SYS_HAS_CPU_SB1
1420 select CPU_SUPPORTS_32BIT_KERNEL
1421 select CPU_SUPPORTS_64BIT_KERNEL
1422 select CPU_SUPPORTS_HIGHMEM
1423 select WEAK_ORDERING
1424
1425 config CPU_CAVIUM_OCTEON
1426 bool "Cavium Octeon processor"
1427 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1428 select ARCH_SPARSEMEM_ENABLE
1429 select CPU_HAS_PREFETCH
1430 select CPU_SUPPORTS_64BIT_KERNEL
1431 select SYS_SUPPORTS_SMP
1432 select NR_CPUS_DEFAULT_16
1433 select WEAK_ORDERING
1434 select CPU_SUPPORTS_HIGHMEM
1435 select CPU_SUPPORTS_HUGEPAGES
1436 help
1437 The Cavium Octeon processor is a highly integrated chip containing
1438 many ethernet hardware widgets for networking tasks. The processor
1439 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1440 Full details can be found at http://www.caviumnetworks.com.
1441
1442 config CPU_BMIPS3300
1443 bool "BMIPS3300"
1444 depends on SYS_HAS_CPU_BMIPS3300
1445 select CPU_BMIPS
1446 help
1447 Broadcom BMIPS3300 processors.
1448
1449 config CPU_BMIPS4350
1450 bool "BMIPS4350"
1451 depends on SYS_HAS_CPU_BMIPS4350
1452 select CPU_BMIPS
1453 select SYS_SUPPORTS_SMP
1454 select SYS_SUPPORTS_HOTPLUG_CPU
1455 help
1456 Broadcom BMIPS4350 ("VIPER") processors.
1457
1458 config CPU_BMIPS4380
1459 bool "BMIPS4380"
1460 depends on SYS_HAS_CPU_BMIPS4380
1461 select CPU_BMIPS
1462 select SYS_SUPPORTS_SMP
1463 select SYS_SUPPORTS_HOTPLUG_CPU
1464 help
1465 Broadcom BMIPS4380 processors.
1466
1467 config CPU_BMIPS5000
1468 bool "BMIPS5000"
1469 depends on SYS_HAS_CPU_BMIPS5000
1470 select CPU_BMIPS
1471 select CPU_SUPPORTS_HIGHMEM
1472 select MIPS_CPU_SCACHE
1473 select SYS_SUPPORTS_SMP
1474 select SYS_SUPPORTS_HOTPLUG_CPU
1475 help
1476 Broadcom BMIPS5000 processors.
1477
1478 config CPU_XLR
1479 bool "Netlogic XLR SoC"
1480 depends on SYS_HAS_CPU_XLR
1481 select CPU_SUPPORTS_32BIT_KERNEL
1482 select CPU_SUPPORTS_64BIT_KERNEL
1483 select CPU_SUPPORTS_HIGHMEM
1484 select WEAK_ORDERING
1485 select WEAK_REORDERING_BEYOND_LLSC
1486 select CPU_SUPPORTS_HUGEPAGES
1487 help
1488 Netlogic Microsystems XLR/XLS processors.
1489
1490 config CPU_XLP
1491 bool "Netlogic XLP SoC"
1492 depends on SYS_HAS_CPU_XLP
1493 select CPU_SUPPORTS_32BIT_KERNEL
1494 select CPU_SUPPORTS_64BIT_KERNEL
1495 select CPU_SUPPORTS_HIGHMEM
1496 select CPU_HAS_LLSC
1497 select WEAK_ORDERING
1498 select WEAK_REORDERING_BEYOND_LLSC
1499 select CPU_HAS_PREFETCH
1500 help
1501 Netlogic Microsystems XLP processors.
1502 endchoice
1503
1504 if CPU_LOONGSON2F
1505 config CPU_NOP_WORKAROUNDS
1506 bool
1507
1508 config CPU_JUMP_WORKAROUNDS
1509 bool
1510
1511 config CPU_LOONGSON2F_WORKAROUNDS
1512 bool "Loongson 2F Workarounds"
1513 default y
1514 select CPU_NOP_WORKAROUNDS
1515 select CPU_JUMP_WORKAROUNDS
1516 help
1517 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1518 require workarounds. Without workarounds the system may hang
1519 unexpectedly. For more information please refer to the gas
1520 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1521
1522 Loongson 2F03 and later have fixed these issues and no workarounds
1523 are needed. The workarounds have no significant side effect on them
1524 but may decrease the performance of the system so this option should
1525 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1526 systems.
1527
1528 If unsure, please say Y.
1529 endif # CPU_LOONGSON2F
1530
1531 config SYS_SUPPORTS_ZBOOT
1532 bool
1533 select HAVE_KERNEL_GZIP
1534 select HAVE_KERNEL_BZIP2
1535 select HAVE_KERNEL_LZMA
1536 select HAVE_KERNEL_LZO
1537
1538 config SYS_SUPPORTS_ZBOOT_UART16550
1539 bool
1540 select SYS_SUPPORTS_ZBOOT
1541
1542 config CPU_LOONGSON2
1543 bool
1544 select CPU_SUPPORTS_32BIT_KERNEL
1545 select CPU_SUPPORTS_64BIT_KERNEL
1546 select CPU_SUPPORTS_HIGHMEM
1547
1548 config CPU_BMIPS
1549 bool
1550 select CPU_MIPS32
1551 select CPU_SUPPORTS_32BIT_KERNEL
1552 select DMA_NONCOHERENT
1553 select IRQ_CPU
1554 select SWAP_IO_SPACE
1555 select WEAK_ORDERING
1556
1557 config SYS_HAS_CPU_LOONGSON2E
1558 bool
1559
1560 config SYS_HAS_CPU_LOONGSON2F
1561 bool
1562 select CPU_SUPPORTS_CPUFREQ
1563 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1564 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1565
1566 config SYS_HAS_CPU_MIPS32_R1
1567 bool
1568
1569 config SYS_HAS_CPU_MIPS32_R2
1570 bool
1571
1572 config SYS_HAS_CPU_MIPS64_R1
1573 bool
1574
1575 config SYS_HAS_CPU_MIPS64_R2
1576 bool
1577
1578 config SYS_HAS_CPU_R3000
1579 bool
1580
1581 config SYS_HAS_CPU_TX39XX
1582 bool
1583
1584 config SYS_HAS_CPU_VR41XX
1585 bool
1586
1587 config SYS_HAS_CPU_R4300
1588 bool
1589
1590 config SYS_HAS_CPU_R4X00
1591 bool
1592
1593 config SYS_HAS_CPU_TX49XX
1594 bool
1595
1596 config SYS_HAS_CPU_R5000
1597 bool
1598
1599 config SYS_HAS_CPU_R5432
1600 bool
1601
1602 config SYS_HAS_CPU_R5500
1603 bool
1604
1605 config SYS_HAS_CPU_R6000
1606 bool
1607
1608 config SYS_HAS_CPU_NEVADA
1609 bool
1610
1611 config SYS_HAS_CPU_R8000
1612 bool
1613
1614 config SYS_HAS_CPU_R10000
1615 bool
1616
1617 config SYS_HAS_CPU_RM7000
1618 bool
1619
1620 config SYS_HAS_CPU_RM9000
1621 bool
1622
1623 config SYS_HAS_CPU_SB1
1624 bool
1625
1626 config SYS_HAS_CPU_CAVIUM_OCTEON
1627 bool
1628
1629 config SYS_HAS_CPU_BMIPS3300
1630 bool
1631
1632 config SYS_HAS_CPU_BMIPS4350
1633 bool
1634
1635 config SYS_HAS_CPU_BMIPS4380
1636 bool
1637
1638 config SYS_HAS_CPU_BMIPS5000
1639 bool
1640
1641 config SYS_HAS_CPU_XLR
1642 bool
1643
1644 config SYS_HAS_CPU_XLP
1645 bool
1646
1647 #
1648 # CPU may reorder R->R, R->W, W->R, W->W
1649 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1650 #
1651 config WEAK_ORDERING
1652 bool
1653
1654 #
1655 # CPU may reorder reads and writes beyond LL/SC
1656 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1657 #
1658 config WEAK_REORDERING_BEYOND_LLSC
1659 bool
1660 endmenu
1661
1662 #
1663 # These two indicate any level of the MIPS32 and MIPS64 architecture
1664 #
1665 config CPU_MIPS32
1666 bool
1667 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1668
1669 config CPU_MIPS64
1670 bool
1671 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1672
1673 #
1674 # These two indicate the revision of the architecture, either Release 1 or Release 2
1675 #
1676 config CPU_MIPSR1
1677 bool
1678 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1679
1680 config CPU_MIPSR2
1681 bool
1682 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1683
1684 config SYS_SUPPORTS_32BIT_KERNEL
1685 bool
1686 config SYS_SUPPORTS_64BIT_KERNEL
1687 bool
1688 config CPU_SUPPORTS_32BIT_KERNEL
1689 bool
1690 config CPU_SUPPORTS_64BIT_KERNEL
1691 bool
1692 config CPU_SUPPORTS_CPUFREQ
1693 bool
1694 config CPU_SUPPORTS_ADDRWINCFG
1695 bool
1696 config CPU_SUPPORTS_HUGEPAGES
1697 bool
1698 config CPU_SUPPORTS_UNCACHED_ACCELERATED
1699 bool
1700 config MIPS_PGD_C0_CONTEXT
1701 bool
1702 default y if 64BIT && CPU_MIPSR2
1703
1704 #
1705 # Set to y for ptrace access to watch registers.
1706 #
1707 config HARDWARE_WATCHPOINTS
1708 bool
1709 default y if CPU_MIPSR1 || CPU_MIPSR2
1710
1711 menu "Kernel type"
1712
1713 choice
1714
1715 prompt "Kernel code model"
1716 help
1717 You should only select this option if you have a workload that
1718 actually benefits from 64-bit processing or if your machine has
1719 large memory. You will only be presented a single option in this
1720 menu if your system does not support both 32-bit and 64-bit kernels.
1721
1722 config 32BIT
1723 bool "32-bit kernel"
1724 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1725 select TRAD_SIGNALS
1726 help
1727 Select this option if you want to build a 32-bit kernel.
1728 config 64BIT
1729 bool "64-bit kernel"
1730 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1731 select HAVE_SYSCALL_WRAPPERS
1732 help
1733 Select this option if you want to build a 64-bit kernel.
1734
1735 endchoice
1736
1737 choice
1738 prompt "Kernel page size"
1739 default PAGE_SIZE_4KB
1740
1741 config PAGE_SIZE_4KB
1742 bool "4kB"
1743 depends on !CPU_LOONGSON2
1744 help
1745 This option select the standard 4kB Linux page size. On some
1746 R3000-family processors this is the only available page size. Using
1747 4kB page size will minimize memory consumption and is therefore
1748 recommended for low memory systems.
1749
1750 config PAGE_SIZE_8KB
1751 bool "8kB"
1752 depends on (EXPERIMENTAL && CPU_R8000) || CPU_CAVIUM_OCTEON
1753 help
1754 Using 8kB page size will result in higher performance kernel at
1755 the price of higher memory consumption. This option is available
1756 only on R8000 and cnMIPS processors. Note that you will need a
1757 suitable Linux distribution to support this.
1758
1759 config PAGE_SIZE_16KB
1760 bool "16kB"
1761 depends on !CPU_R3000 && !CPU_TX39XX
1762 help
1763 Using 16kB page size will result in higher performance kernel at
1764 the price of higher memory consumption. This option is available on
1765 all non-R3000 family processors. Note that you will need a suitable
1766 Linux distribution to support this.
1767
1768 config PAGE_SIZE_32KB
1769 bool "32kB"
1770 depends on CPU_CAVIUM_OCTEON
1771 help
1772 Using 32kB page size will result in higher performance kernel at
1773 the price of higher memory consumption. This option is available
1774 only on cnMIPS cores. Note that you will need a suitable Linux
1775 distribution to support this.
1776
1777 config PAGE_SIZE_64KB
1778 bool "64kB"
1779 depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
1780 help
1781 Using 64kB page size will result in higher performance kernel at
1782 the price of higher memory consumption. This option is available on
1783 all non-R3000 family processor. Not that at the time of this
1784 writing this option is still high experimental.
1785
1786 endchoice
1787
1788 config FORCE_MAX_ZONEORDER
1789 int "Maximum zone order"
1790 range 14 64 if HUGETLB_PAGE && PAGE_SIZE_64KB
1791 default "14" if HUGETLB_PAGE && PAGE_SIZE_64KB
1792 range 13 64 if HUGETLB_PAGE && PAGE_SIZE_32KB
1793 default "13" if HUGETLB_PAGE && PAGE_SIZE_32KB
1794 range 12 64 if HUGETLB_PAGE && PAGE_SIZE_16KB
1795 default "12" if HUGETLB_PAGE && PAGE_SIZE_16KB
1796 range 11 64
1797 default "11"
1798 help
1799 The kernel memory allocator divides physically contiguous memory
1800 blocks into "zones", where each zone is a power of two number of
1801 pages. This option selects the largest power of two that the kernel
1802 keeps in the memory allocator. If you need to allocate very large
1803 blocks of physically contiguous memory, then you may need to
1804 increase this value.
1805
1806 This config option is actually maximum order plus one. For example,
1807 a value of 11 means that the largest free memory block is 2^10 pages.
1808
1809 The page size is not necessarily 4KB. Keep this in mind
1810 when choosing a value for this option.
1811
1812 config BOARD_SCACHE
1813 bool
1814
1815 config IP22_CPU_SCACHE
1816 bool
1817 select BOARD_SCACHE
1818
1819 #
1820 # Support for a MIPS32 / MIPS64 style S-caches
1821 #
1822 config MIPS_CPU_SCACHE
1823 bool
1824 select BOARD_SCACHE
1825
1826 config R5000_CPU_SCACHE
1827 bool
1828 select BOARD_SCACHE
1829
1830 config RM7000_CPU_SCACHE
1831 bool
1832 select BOARD_SCACHE
1833
1834 config SIBYTE_DMA_PAGEOPS
1835 bool "Use DMA to clear/copy pages"
1836 depends on CPU_SB1
1837 help
1838 Instead of using the CPU to zero and copy pages, use a Data Mover
1839 channel. These DMA channels are otherwise unused by the standard
1840 SiByte Linux port. Seems to give a small performance benefit.
1841
1842 config CPU_HAS_PREFETCH
1843 bool
1844
1845 choice
1846 prompt "MIPS MT options"
1847
1848 config MIPS_MT_DISABLED
1849 bool "Disable multithreading support."
1850 help
1851 Use this option if your workload can't take advantage of
1852 MIPS hardware multithreading support. On systems that don't have
1853 the option of an MT-enabled processor this option will be the only
1854 option in this menu.
1855
1856 config MIPS_MT_SMP
1857 bool "Use 1 TC on each available VPE for SMP"
1858 depends on SYS_SUPPORTS_MULTITHREADING
1859 select CPU_MIPSR2_IRQ_VI
1860 select CPU_MIPSR2_IRQ_EI
1861 select MIPS_MT
1862 select NR_CPUS_DEFAULT_2
1863 select SMP
1864 select SYS_SUPPORTS_SCHED_SMT if SMP
1865 select SYS_SUPPORTS_SMP
1866 select SMP_UP
1867 help
1868 This is a kernel model which is known a VSMP but lately has been
1869 marketesed into SMVP.
1870 Virtual SMP uses the processor's VPEs to implement virtual
1871 processors. In currently available configuration of the 34K processor
1872 this allows for a dual processor. Both processors will share the same
1873 primary caches; each will obtain the half of the TLB for it's own
1874 exclusive use. For a layman this model can be described as similar to
1875 what Intel calls Hyperthreading.
1876
1877 For further information see http://www.linux-mips.org/wiki/34K#VSMP
1878
1879 config MIPS_MT_SMTC
1880 bool "SMTC: Use all TCs on all VPEs for SMP"
1881 depends on CPU_MIPS32_R2
1882 #depends on CPU_MIPS64_R2 # once there is hardware ...
1883 depends on SYS_SUPPORTS_MULTITHREADING
1884 select CPU_MIPSR2_IRQ_VI
1885 select CPU_MIPSR2_IRQ_EI
1886 select MIPS_MT
1887 select NR_CPUS_DEFAULT_8
1888 select SMP
1889 select SYS_SUPPORTS_SMP
1890 select SMP_UP
1891 help
1892 This is a kernel model which is known a SMTC or lately has been
1893 marketesed into SMVP.
1894 is presenting the available TC's of the core as processors to Linux.
1895 On currently available 34K processors this means a Linux system will
1896 see up to 5 processors. The implementation of the SMTC kernel differs
1897 significantly from VSMP and cannot efficiently coexist in the same
1898 kernel binary so the choice between VSMP and SMTC is a compile time
1899 decision.
1900
1901 For further information see http://www.linux-mips.org/wiki/34K#SMTC
1902
1903 endchoice
1904
1905 config MIPS_MT
1906 bool
1907
1908 config SCHED_SMT
1909 bool "SMT (multithreading) scheduler support"
1910 depends on SYS_SUPPORTS_SCHED_SMT
1911 default n
1912 help
1913 SMT scheduler support improves the CPU scheduler's decision making
1914 when dealing with MIPS MT enabled cores at a cost of slightly
1915 increased overhead in some places. If unsure say N here.
1916
1917 config SYS_SUPPORTS_SCHED_SMT
1918 bool
1919
1920
1921 config SYS_SUPPORTS_MULTITHREADING
1922 bool
1923
1924 config MIPS_MT_FPAFF
1925 bool "Dynamic FPU affinity for FP-intensive threads"
1926 default y
1927 depends on MIPS_MT_SMP || MIPS_MT_SMTC
1928
1929 config MIPS_VPE_LOADER
1930 bool "VPE loader support."
1931 depends on SYS_SUPPORTS_MULTITHREADING
1932 select CPU_MIPSR2_IRQ_VI
1933 select CPU_MIPSR2_IRQ_EI
1934 select MIPS_MT
1935 help
1936 Includes a loader for loading an elf relocatable object
1937 onto another VPE and running it.
1938
1939 config MIPS_MT_SMTC_IM_BACKSTOP
1940 bool "Use per-TC register bits as backstop for inhibited IM bits"
1941 depends on MIPS_MT_SMTC
1942 default n
1943 help
1944 To support multiple TC microthreads acting as "CPUs" within
1945 a VPE, VPE-wide interrupt mask bits must be specially manipulated
1946 during interrupt handling. To support legacy drivers and interrupt
1947 controller management code, SMTC has a "backstop" to track and
1948 if necessary restore the interrupt mask. This has some performance
1949 impact on interrupt service overhead.
1950
1951 config MIPS_MT_SMTC_IRQAFF
1952 bool "Support IRQ affinity API"
1953 depends on MIPS_MT_SMTC
1954 default n
1955 help
1956 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
1957 for SMTC Linux kernel. Requires platform support, of which
1958 an example can be found in the MIPS kernel i8259 and Malta
1959 platform code. Adds some overhead to interrupt dispatch, and
1960 should be used only if you know what you are doing.
1961
1962 config MIPS_VPE_LOADER_TOM
1963 bool "Load VPE program into memory hidden from linux"
1964 depends on MIPS_VPE_LOADER
1965 default y
1966 help
1967 The loader can use memory that is present but has been hidden from
1968 Linux using the kernel command line option "mem=xxMB". It's up to
1969 you to ensure the amount you put in the option and the space your
1970 program requires is less or equal to the amount physically present.
1971
1972 # this should possibly be in drivers/char, but it is rather cpu related. Hmmm
1973 config MIPS_VPE_APSP_API
1974 bool "Enable support for AP/SP API (RTLX)"
1975 depends on MIPS_VPE_LOADER
1976 help
1977
1978 config MIPS_APSP_KSPD
1979 bool "Enable KSPD"
1980 depends on MIPS_VPE_APSP_API
1981 default y
1982 help
1983 KSPD is a kernel daemon that accepts syscall requests from the SP
1984 side, actions them and returns the results. It also handles the
1985 "exit" syscall notifying other kernel modules the SP program is
1986 exiting. You probably want to say yes here.
1987
1988 config MIPS_CMP
1989 bool "MIPS CMP framework support"
1990 depends on SYS_SUPPORTS_MIPS_CMP
1991 select SYNC_R4K
1992 select SYS_SUPPORTS_SMP
1993 select SYS_SUPPORTS_SCHED_SMT if SMP
1994 select WEAK_ORDERING
1995 default n
1996 help
1997 This is a placeholder option for the GCMP work. It will need to
1998 be handled differently...
1999
2000 config SB1_PASS_1_WORKAROUNDS
2001 bool
2002 depends on CPU_SB1_PASS_1
2003 default y
2004
2005 config SB1_PASS_2_WORKAROUNDS
2006 bool
2007 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2008 default y
2009
2010 config SB1_PASS_2_1_WORKAROUNDS
2011 bool
2012 depends on CPU_SB1 && CPU_SB1_PASS_2
2013 default y
2014
2015 config 64BIT_PHYS_ADDR
2016 bool
2017
2018 config ARCH_PHYS_ADDR_T_64BIT
2019 def_bool 64BIT_PHYS_ADDR
2020
2021 config CPU_HAS_SMARTMIPS
2022 depends on SYS_SUPPORTS_SMARTMIPS
2023 bool "Support for the SmartMIPS ASE"
2024 help
2025 SmartMIPS is a extension of the MIPS32 architecture aimed at
2026 increased security at both hardware and software level for
2027 smartcards. Enabling this option will allow proper use of the
2028 SmartMIPS instructions by Linux applications. However a kernel with
2029 this option will not work on a MIPS core without SmartMIPS core. If
2030 you don't know you probably don't have SmartMIPS and should say N
2031 here.
2032
2033 config CPU_HAS_WB
2034 bool
2035
2036 config XKS01
2037 bool
2038
2039 #
2040 # Vectored interrupt mode is an R2 feature
2041 #
2042 config CPU_MIPSR2_IRQ_VI
2043 bool
2044
2045 #
2046 # Extended interrupt mode is an R2 feature
2047 #
2048 config CPU_MIPSR2_IRQ_EI
2049 bool
2050
2051 config CPU_HAS_SYNC
2052 bool
2053 depends on !CPU_R3000
2054 default y
2055
2056 #
2057 # CPU non-features
2058 #
2059 config CPU_DADDI_WORKAROUNDS
2060 bool
2061
2062 config CPU_R4000_WORKAROUNDS
2063 bool
2064 select CPU_R4400_WORKAROUNDS
2065
2066 config CPU_R4400_WORKAROUNDS
2067 bool
2068
2069 #
2070 # - Highmem only makes sense for the 32-bit kernel.
2071 # - The current highmem code will only work properly on physically indexed
2072 # caches such as R3000, SB1, R7000 or those that look like they're virtually
2073 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2074 # moment we protect the user and offer the highmem option only on machines
2075 # where it's known to be safe. This will not offer highmem on a few systems
2076 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2077 # indexed CPUs but we're playing safe.
2078 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2079 # know they might have memory configurations that could make use of highmem
2080 # support.
2081 #
2082 config HIGHMEM
2083 bool "High Memory Support"
2084 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
2085
2086 config CPU_SUPPORTS_HIGHMEM
2087 bool
2088
2089 config SYS_SUPPORTS_HIGHMEM
2090 bool
2091
2092 config SYS_SUPPORTS_SMARTMIPS
2093 bool
2094
2095 config ARCH_FLATMEM_ENABLE
2096 def_bool y
2097 depends on !NUMA && !CPU_LOONGSON2
2098
2099 config ARCH_DISCONTIGMEM_ENABLE
2100 bool
2101 default y if SGI_IP27
2102 help
2103 Say Y to support efficient handling of discontiguous physical memory,
2104 for architectures which are either NUMA (Non-Uniform Memory Access)
2105 or have huge holes in the physical address space for other reasons.
2106 See <file:Documentation/vm/numa> for more.
2107
2108 config ARCH_SPARSEMEM_ENABLE
2109 bool
2110 select SPARSEMEM_STATIC
2111
2112 config NUMA
2113 bool "NUMA Support"
2114 depends on SYS_SUPPORTS_NUMA
2115 help
2116 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2117 Access). This option improves performance on systems with more
2118 than two nodes; on two node systems it is generally better to
2119 leave it disabled; on single node systems disable this option
2120 disabled.
2121
2122 config SYS_SUPPORTS_NUMA
2123 bool
2124
2125 config NODES_SHIFT
2126 int
2127 default "6"
2128 depends on NEED_MULTIPLE_NODES
2129
2130 config HW_PERF_EVENTS
2131 bool "Enable hardware performance counter support for perf events"
2132 depends on PERF_EVENTS && !MIPS_MT_SMTC && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON)
2133 default y
2134 help
2135 Enable hardware performance counter support for perf events. If
2136 disabled, perf events will use software events only.
2137
2138 source "mm/Kconfig"
2139
2140 config SMP
2141 bool "Multi-Processing support"
2142 depends on SYS_SUPPORTS_SMP
2143 select IRQ_PER_CPU
2144 select USE_GENERIC_SMP_HELPERS
2145 help
2146 This enables support for systems with more than one CPU. If you have
2147 a system with only one CPU, like most personal computers, say N. If
2148 you have a system with more than one CPU, say Y.
2149
2150 If you say N here, the kernel will run on single and multiprocessor
2151 machines, but will use only one CPU of a multiprocessor machine. If
2152 you say Y here, the kernel will run on many, but not all,
2153 singleprocessor machines. On a singleprocessor machine, the kernel
2154 will run faster if you say N here.
2155
2156 People using multiprocessor machines who say Y here should also say
2157 Y to "Enhanced Real Time Clock Support", below.
2158
2159 See also the SMP-HOWTO available at
2160 <http://www.tldp.org/docs.html#howto>.
2161
2162 If you don't know what to do here, say N.
2163
2164 config SMP_UP
2165 bool
2166
2167 config SYS_SUPPORTS_MIPS_CMP
2168 bool
2169
2170 config SYS_SUPPORTS_SMP
2171 bool
2172
2173 config NR_CPUS_DEFAULT_1
2174 bool
2175
2176 config NR_CPUS_DEFAULT_2
2177 bool
2178
2179 config NR_CPUS_DEFAULT_4
2180 bool
2181
2182 config NR_CPUS_DEFAULT_8
2183 bool
2184
2185 config NR_CPUS_DEFAULT_16
2186 bool
2187
2188 config NR_CPUS_DEFAULT_32
2189 bool
2190
2191 config NR_CPUS_DEFAULT_64
2192 bool
2193
2194 config NR_CPUS
2195 int "Maximum number of CPUs (2-64)"
2196 range 1 64 if NR_CPUS_DEFAULT_1
2197 depends on SMP
2198 default "1" if NR_CPUS_DEFAULT_1
2199 default "2" if NR_CPUS_DEFAULT_2
2200 default "4" if NR_CPUS_DEFAULT_4
2201 default "8" if NR_CPUS_DEFAULT_8
2202 default "16" if NR_CPUS_DEFAULT_16
2203 default "32" if NR_CPUS_DEFAULT_32
2204 default "64" if NR_CPUS_DEFAULT_64
2205 help
2206 This allows you to specify the maximum number of CPUs which this
2207 kernel will support. The maximum supported value is 32 for 32-bit
2208 kernel and 64 for 64-bit kernels; the minimum value which makes
2209 sense is 1 for Qemu (useful only for kernel debugging purposes)
2210 and 2 for all others.
2211
2212 This is purely to save memory - each supported CPU adds
2213 approximately eight kilobytes to the kernel image. For best
2214 performance should round up your number of processors to the next
2215 power of two.
2216
2217 #
2218 # Timer Interrupt Frequency Configuration
2219 #
2220
2221 choice
2222 prompt "Timer frequency"
2223 default HZ_250
2224 help
2225 Allows the configuration of the timer frequency.
2226
2227 config HZ_48
2228 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2229
2230 config HZ_100
2231 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2232
2233 config HZ_128
2234 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2235
2236 config HZ_250
2237 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2238
2239 config HZ_256
2240 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2241
2242 config HZ_1000
2243 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2244
2245 config HZ_1024
2246 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2247
2248 endchoice
2249
2250 config SYS_SUPPORTS_48HZ
2251 bool
2252
2253 config SYS_SUPPORTS_100HZ
2254 bool
2255
2256 config SYS_SUPPORTS_128HZ
2257 bool
2258
2259 config SYS_SUPPORTS_250HZ
2260 bool
2261
2262 config SYS_SUPPORTS_256HZ
2263 bool
2264
2265 config SYS_SUPPORTS_1000HZ
2266 bool
2267
2268 config SYS_SUPPORTS_1024HZ
2269 bool
2270
2271 config SYS_SUPPORTS_ARBIT_HZ
2272 bool
2273 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2274 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2275 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2276 !SYS_SUPPORTS_1024HZ
2277
2278 config HZ
2279 int
2280 default 48 if HZ_48
2281 default 100 if HZ_100
2282 default 128 if HZ_128
2283 default 250 if HZ_250
2284 default 256 if HZ_256
2285 default 1000 if HZ_1000
2286 default 1024 if HZ_1024
2287
2288 source "kernel/Kconfig.preempt"
2289
2290 config KEXEC
2291 bool "Kexec system call (EXPERIMENTAL)"
2292 depends on EXPERIMENTAL
2293 help
2294 kexec is a system call that implements the ability to shutdown your
2295 current kernel, and to start another kernel. It is like a reboot
2296 but it is independent of the system firmware. And like a reboot
2297 you can start any kernel with it, not just Linux.
2298
2299 The name comes from the similarity to the exec system call.
2300
2301 It is an ongoing process to be certain the hardware in a machine
2302 is properly shutdown, so do not be surprised if this code does not
2303 initially work for you. It may help to enable device hotplugging
2304 support. As of this writing the exact hardware interface is
2305 strongly in flux, so no good recommendation can be made.
2306
2307 config SECCOMP
2308 bool "Enable seccomp to safely compute untrusted bytecode"
2309 depends on PROC_FS
2310 default y
2311 help
2312 This kernel feature is useful for number crunching applications
2313 that may need to compute untrusted bytecode during their
2314 execution. By using pipes or other transports made available to
2315 the process as file descriptors supporting the read/write
2316 syscalls, it's possible to isolate those applications in
2317 their own address space using seccomp. Once seccomp is
2318 enabled via /proc/<pid>/seccomp, it cannot be disabled
2319 and the task is only allowed to execute a few safe syscalls
2320 defined by each seccomp mode.
2321
2322 If unsure, say Y. Only embedded should say N here.
2323
2324 config USE_OF
2325 bool "Flattened Device Tree support"
2326 select OF
2327 select OF_EARLY_FLATTREE
2328 select IRQ_DOMAIN
2329 help
2330 Include support for flattened device tree machine descriptions.
2331
2332 endmenu
2333
2334 config LOCKDEP_SUPPORT
2335 bool
2336 default y
2337
2338 config STACKTRACE_SUPPORT
2339 bool
2340 default y
2341
2342 source "init/Kconfig"
2343
2344 source "kernel/Kconfig.freezer"
2345
2346 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2347
2348 config HW_HAS_EISA
2349 bool
2350 config HW_HAS_PCI
2351 bool
2352
2353 config PCI
2354 bool "Support for PCI controller"
2355 depends on HW_HAS_PCI
2356 select PCI_DOMAINS
2357 select GENERIC_PCI_IOMAP
2358 select NO_GENERIC_PCI_IOPORT_MAP
2359 help
2360 Find out whether you have a PCI motherboard. PCI is the name of a
2361 bus system, i.e. the way the CPU talks to the other stuff inside
2362 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2363 say Y, otherwise N.
2364
2365 config PCI_DOMAINS
2366 bool
2367
2368 source "drivers/pci/Kconfig"
2369
2370 #
2371 # ISA support is now enabled via select. Too many systems still have the one
2372 # or other ISA chip on the board that users don't know about so don't expect
2373 # users to choose the right thing ...
2374 #
2375 config ISA
2376 bool
2377
2378 config EISA
2379 bool "EISA support"
2380 depends on HW_HAS_EISA
2381 select ISA
2382 select GENERIC_ISA_DMA
2383 ---help---
2384 The Extended Industry Standard Architecture (EISA) bus was
2385 developed as an open alternative to the IBM MicroChannel bus.
2386
2387 The EISA bus provided some of the features of the IBM MicroChannel
2388 bus while maintaining backward compatibility with cards made for
2389 the older ISA bus. The EISA bus saw limited use between 1988 and
2390 1995 when it was made obsolete by the PCI bus.
2391
2392 Say Y here if you are building a kernel for an EISA-based machine.
2393
2394 Otherwise, say N.
2395
2396 source "drivers/eisa/Kconfig"
2397
2398 config TC
2399 bool "TURBOchannel support"
2400 depends on MACH_DECSTATION
2401 help
2402 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2403 processors. TURBOchannel programming specifications are available
2404 at:
2405 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2406 and:
2407 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2408 Linux driver support status is documented at:
2409 <http://www.linux-mips.org/wiki/DECstation>
2410
2411 config MMU
2412 bool
2413 default y
2414
2415 config I8253
2416 bool
2417 select CLKSRC_I8253
2418 select CLKEVT_I8253
2419 select MIPS_EXTERNAL_TIMER
2420
2421 config ZONE_DMA32
2422 bool
2423
2424 source "drivers/pcmcia/Kconfig"
2425
2426 source "drivers/pci/hotplug/Kconfig"
2427
2428 config RAPIDIO
2429 bool "RapidIO support"
2430 depends on PCI
2431 default n
2432 help
2433 If you say Y here, the kernel will include drivers and
2434 infrastructure code to support RapidIO interconnect devices.
2435
2436 source "drivers/rapidio/Kconfig"
2437
2438 endmenu
2439
2440 menu "Executable file formats"
2441
2442 source "fs/Kconfig.binfmt"
2443
2444 config TRAD_SIGNALS
2445 bool
2446
2447 config MIPS32_COMPAT
2448 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2449 depends on 64BIT
2450 help
2451 Select this option if you want Linux/MIPS 32-bit binary
2452 compatibility. Since all software available for Linux/MIPS is
2453 currently 32-bit you should say Y here.
2454
2455 config COMPAT
2456 bool
2457 depends on MIPS32_COMPAT
2458 select ARCH_WANT_OLD_COMPAT_IPC
2459 default y
2460
2461 config SYSVIPC_COMPAT
2462 bool
2463 depends on COMPAT && SYSVIPC
2464 default y
2465
2466 config MIPS32_O32
2467 bool "Kernel support for o32 binaries"
2468 depends on MIPS32_COMPAT
2469 help
2470 Select this option if you want to run o32 binaries. These are pure
2471 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2472 existing binaries are in this format.
2473
2474 If unsure, say Y.
2475
2476 config MIPS32_N32
2477 bool "Kernel support for n32 binaries"
2478 depends on MIPS32_COMPAT
2479 help
2480 Select this option if you want to run n32 binaries. These are
2481 64-bit binaries using 32-bit quantities for addressing and certain
2482 data that would normally be 64-bit. They are used in special
2483 cases.
2484
2485 If unsure, say N.
2486
2487 config BINFMT_ELF32
2488 bool
2489 default y if MIPS32_O32 || MIPS32_N32
2490
2491 endmenu
2492
2493 menu "Power management options"
2494
2495 config ARCH_HIBERNATION_POSSIBLE
2496 def_bool y
2497 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2498
2499 config ARCH_SUSPEND_POSSIBLE
2500 def_bool y
2501 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2502
2503 source "kernel/power/Kconfig"
2504
2505 endmenu
2506
2507 source "arch/mips/kernel/cpufreq/Kconfig"
2508
2509 source "net/Kconfig"
2510
2511 source "drivers/Kconfig"
2512
2513 source "fs/Kconfig"
2514
2515 source "arch/mips/Kconfig.debug"
2516
2517 source "security/Kconfig"
2518
2519 source "crypto/Kconfig"
2520
2521 source "lib/Kconfig"
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