Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
[GitHub/mt8127/android_kernel_alcatel_ttab.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_PERF_EVENTS
8 select PERF_USE_VMALLOC
9 select HAVE_ARCH_KGDB
10 select ARCH_HAVE_CUSTOM_GPIO_H
11 select HAVE_FUNCTION_TRACER
12 select HAVE_FUNCTION_TRACE_MCOUNT_TEST
13 select HAVE_DYNAMIC_FTRACE
14 select HAVE_FTRACE_MCOUNT_RECORD
15 select HAVE_C_RECORDMCOUNT
16 select HAVE_FUNCTION_GRAPH_TRACER
17 select HAVE_KPROBES
18 select HAVE_KRETPROBES
19 select HAVE_DEBUG_KMEMLEAK
20 select ARCH_BINFMT_ELF_RANDOMIZE_PIE
21 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT
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 VIRT_TO_BUS
42 select MODULES_USE_ELF_REL if MODULES
43 select MODULES_USE_ELF_RELA if MODULES && 64BIT
44 select CLONE_BACKWARDS
45
46 menu "Machine selection"
47
48 config ZONE_DMA
49 bool
50
51 choice
52 prompt "System type"
53 default SGI_IP22
54
55 config MIPS_ALCHEMY
56 bool "Alchemy processor based machines"
57 select 64BIT_PHYS_ADDR
58 select CEVT_R4K
59 select CSRC_R4K
60 select IRQ_CPU
61 select SYS_HAS_CPU_MIPS32_R1
62 select SYS_SUPPORTS_32BIT_KERNEL
63 select SYS_SUPPORTS_APM_EMULATION
64 select ARCH_REQUIRE_GPIOLIB
65 select SYS_SUPPORTS_ZBOOT
66 select USB_ARCH_HAS_OHCI
67 select USB_ARCH_HAS_EHCI
68
69 config AR7
70 bool "Texas Instruments AR7"
71 select BOOT_ELF32
72 select DMA_NONCOHERENT
73 select CEVT_R4K
74 select CSRC_R4K
75 select IRQ_CPU
76 select NO_EXCEPT_FILL
77 select SWAP_IO_SPACE
78 select SYS_HAS_CPU_MIPS32_R1
79 select SYS_HAS_EARLY_PRINTK
80 select SYS_SUPPORTS_32BIT_KERNEL
81 select SYS_SUPPORTS_LITTLE_ENDIAN
82 select SYS_SUPPORTS_ZBOOT_UART16550
83 select ARCH_REQUIRE_GPIOLIB
84 select VLYNQ
85 select HAVE_CLK
86 help
87 Support for the Texas Instruments AR7 System-on-a-Chip
88 family: TNETD7100, 7200 and 7300.
89
90 config ATH79
91 bool "Atheros AR71XX/AR724X/AR913X based boards"
92 select ARCH_REQUIRE_GPIOLIB
93 select BOOT_RAW
94 select CEVT_R4K
95 select CSRC_R4K
96 select DMA_NONCOHERENT
97 select HAVE_CLK
98 select IRQ_CPU
99 select MIPS_MACHINE
100 select SYS_HAS_CPU_MIPS32_R2
101 select SYS_HAS_EARLY_PRINTK
102 select SYS_SUPPORTS_32BIT_KERNEL
103 select SYS_SUPPORTS_BIG_ENDIAN
104 help
105 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
106
107 config BCM47XX
108 bool "Broadcom BCM47XX based boards"
109 select ARCH_WANT_OPTIONAL_GPIOLIB
110 select BOOT_RAW
111 select CEVT_R4K
112 select CSRC_R4K
113 select DMA_NONCOHERENT
114 select FW_CFE
115 select HW_HAS_PCI
116 select IRQ_CPU
117 select NO_EXCEPT_FILL
118 select SYS_SUPPORTS_32BIT_KERNEL
119 select SYS_SUPPORTS_LITTLE_ENDIAN
120 select SYS_HAS_EARLY_PRINTK
121 help
122 Support for BCM47XX based boards
123
124 config BCM63XX
125 bool "Broadcom BCM63XX based boards"
126 select CEVT_R4K
127 select CSRC_R4K
128 select DMA_NONCOHERENT
129 select IRQ_CPU
130 select SYS_HAS_CPU_MIPS32_R1
131 select SYS_SUPPORTS_32BIT_KERNEL
132 select SYS_SUPPORTS_BIG_ENDIAN
133 select SYS_HAS_EARLY_PRINTK
134 select SWAP_IO_SPACE
135 select ARCH_REQUIRE_GPIOLIB
136 select HAVE_CLK
137 help
138 Support for BCM63XX based boards
139
140 config MIPS_COBALT
141 bool "Cobalt Server"
142 select CEVT_R4K
143 select CSRC_R4K
144 select CEVT_GT641XX
145 select DMA_NONCOHERENT
146 select HW_HAS_PCI
147 select I8253
148 select I8259
149 select IRQ_CPU
150 select IRQ_GT641XX
151 select PCI_GT64XXX_PCI0
152 select PCI
153 select SYS_HAS_CPU_NEVADA
154 select SYS_HAS_EARLY_PRINTK
155 select SYS_SUPPORTS_32BIT_KERNEL
156 select SYS_SUPPORTS_64BIT_KERNEL
157 select SYS_SUPPORTS_LITTLE_ENDIAN
158
159 config MACH_DECSTATION
160 bool "DECstations"
161 select BOOT_ELF32
162 select CEVT_DS1287
163 select CEVT_R4K
164 select CSRC_IOASIC
165 select CSRC_R4K
166 select CPU_DADDI_WORKAROUNDS if 64BIT
167 select CPU_R4000_WORKAROUNDS if 64BIT
168 select CPU_R4400_WORKAROUNDS if 64BIT
169 select DMA_NONCOHERENT
170 select NO_IOPORT
171 select IRQ_CPU
172 select SYS_HAS_CPU_R3000
173 select SYS_HAS_CPU_R4X00
174 select SYS_SUPPORTS_32BIT_KERNEL
175 select SYS_SUPPORTS_64BIT_KERNEL
176 select SYS_SUPPORTS_LITTLE_ENDIAN
177 select SYS_SUPPORTS_128HZ
178 select SYS_SUPPORTS_256HZ
179 select SYS_SUPPORTS_1024HZ
180 help
181 This enables support for DEC's MIPS based workstations. For details
182 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
183 DECstation porting pages on <http://decstation.unix-ag.org/>.
184
185 If you have one of the following DECstation Models you definitely
186 want to choose R4xx0 for the CPU Type:
187
188 DECstation 5000/50
189 DECstation 5000/150
190 DECstation 5000/260
191 DECsystem 5900/260
192
193 otherwise choose R3000.
194
195 config MACH_JAZZ
196 bool "Jazz family of machines"
197 select FW_ARC
198 select FW_ARC32
199 select ARCH_MAY_HAVE_PC_FDC
200 select CEVT_R4K
201 select CSRC_R4K
202 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
203 select GENERIC_ISA_DMA
204 select HAVE_PCSPKR_PLATFORM
205 select IRQ_CPU
206 select I8253
207 select I8259
208 select ISA
209 select SYS_HAS_CPU_R4X00
210 select SYS_SUPPORTS_32BIT_KERNEL
211 select SYS_SUPPORTS_64BIT_KERNEL
212 select SYS_SUPPORTS_100HZ
213 help
214 This a family of machines based on the MIPS R4030 chipset which was
215 used by several vendors to build RISC/os and Windows NT workstations.
216 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
217 Olivetti M700-10 workstations.
218
219 config MACH_JZ4740
220 bool "Ingenic JZ4740 based machines"
221 select SYS_HAS_CPU_MIPS32_R1
222 select SYS_SUPPORTS_32BIT_KERNEL
223 select SYS_SUPPORTS_LITTLE_ENDIAN
224 select SYS_SUPPORTS_ZBOOT_UART16550
225 select DMA_NONCOHERENT
226 select IRQ_CPU
227 select ARCH_REQUIRE_GPIOLIB
228 select SYS_HAS_EARLY_PRINTK
229 select HAVE_PWM
230 select HAVE_CLK
231 select GENERIC_IRQ_CHIP
232
233 config LANTIQ
234 bool "Lantiq based platforms"
235 select DMA_NONCOHERENT
236 select IRQ_CPU
237 select CEVT_R4K
238 select CSRC_R4K
239 select SYS_HAS_CPU_MIPS32_R1
240 select SYS_HAS_CPU_MIPS32_R2
241 select SYS_SUPPORTS_BIG_ENDIAN
242 select SYS_SUPPORTS_32BIT_KERNEL
243 select SYS_SUPPORTS_MULTITHREADING
244 select SYS_HAS_EARLY_PRINTK
245 select ARCH_REQUIRE_GPIOLIB
246 select SWAP_IO_SPACE
247 select BOOT_RAW
248 select HAVE_MACH_CLKDEV
249 select CLKDEV_LOOKUP
250 select USE_OF
251 select PINCTRL
252 select PINCTRL_LANTIQ
253
254 config LASAT
255 bool "LASAT Networks platforms"
256 select CEVT_R4K
257 select CSRC_R4K
258 select DMA_NONCOHERENT
259 select SYS_HAS_EARLY_PRINTK
260 select HW_HAS_PCI
261 select IRQ_CPU
262 select PCI_GT64XXX_PCI0
263 select MIPS_NILE4
264 select R5000_CPU_SCACHE
265 select SYS_HAS_CPU_R5000
266 select SYS_SUPPORTS_32BIT_KERNEL
267 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
268 select SYS_SUPPORTS_LITTLE_ENDIAN
269
270 config MACH_LOONGSON
271 bool "Loongson family of machines"
272 select SYS_SUPPORTS_ZBOOT
273 help
274 This enables the support of Loongson family of machines.
275
276 Loongson is a family of general-purpose MIPS-compatible CPUs.
277 developed at Institute of Computing Technology (ICT),
278 Chinese Academy of Sciences (CAS) in the People's Republic
279 of China. The chief architect is Professor Weiwu Hu.
280
281 config MACH_LOONGSON1
282 bool "Loongson 1 family of machines"
283 select SYS_SUPPORTS_ZBOOT
284 help
285 This enables support for the Loongson 1 based machines.
286
287 Loongson 1 is a family of 32-bit MIPS-compatible SoCs developed by
288 the ICT (Institute of Computing Technology) and the Chinese Academy
289 of Sciences.
290
291 config MIPS_MALTA
292 bool "MIPS Malta board"
293 select ARCH_MAY_HAVE_PC_FDC
294 select BOOT_ELF32
295 select BOOT_RAW
296 select CEVT_R4K
297 select CSRC_R4K
298 select CSRC_GIC
299 select DMA_NONCOHERENT
300 select GENERIC_ISA_DMA
301 select HAVE_PCSPKR_PLATFORM
302 select IRQ_CPU
303 select IRQ_GIC
304 select HW_HAS_PCI
305 select I8253
306 select I8259
307 select MIPS_BONITO64
308 select MIPS_CPU_SCACHE
309 select PCI_GT64XXX_PCI0
310 select MIPS_MSC
311 select SWAP_IO_SPACE
312 select SYS_HAS_CPU_MIPS32_R1
313 select SYS_HAS_CPU_MIPS32_R2
314 select SYS_HAS_CPU_MIPS64_R1
315 select SYS_HAS_CPU_MIPS64_R2
316 select SYS_HAS_CPU_NEVADA
317 select SYS_HAS_CPU_RM7000
318 select SYS_HAS_EARLY_PRINTK
319 select SYS_SUPPORTS_32BIT_KERNEL
320 select SYS_SUPPORTS_64BIT_KERNEL
321 select SYS_SUPPORTS_BIG_ENDIAN
322 select SYS_SUPPORTS_LITTLE_ENDIAN
323 select SYS_SUPPORTS_MIPS_CMP
324 select SYS_SUPPORTS_MULTITHREADING
325 select SYS_SUPPORTS_SMARTMIPS
326 select SYS_SUPPORTS_ZBOOT
327 help
328 This enables support for the MIPS Technologies Malta evaluation
329 board.
330
331 config MIPS_SEAD3
332 bool "MIPS SEAD3 board"
333 select BOOT_ELF32
334 select BOOT_RAW
335 select CEVT_R4K
336 select CSRC_R4K
337 select CSRC_GIC
338 select CPU_MIPSR2_IRQ_VI
339 select CPU_MIPSR2_IRQ_EI
340 select DMA_NONCOHERENT
341 select IRQ_CPU
342 select IRQ_GIC
343 select MIPS_CPU_SCACHE
344 select MIPS_MSC
345 select SYS_HAS_CPU_MIPS32_R1
346 select SYS_HAS_CPU_MIPS32_R2
347 select SYS_HAS_CPU_MIPS64_R1
348 select SYS_HAS_EARLY_PRINTK
349 select SYS_SUPPORTS_32BIT_KERNEL
350 select SYS_SUPPORTS_64BIT_KERNEL
351 select SYS_SUPPORTS_BIG_ENDIAN
352 select SYS_SUPPORTS_LITTLE_ENDIAN
353 select SYS_SUPPORTS_SMARTMIPS
354 select SYS_SUPPORTS_MICROMIPS
355 select USB_ARCH_HAS_EHCI
356 select USB_EHCI_BIG_ENDIAN_DESC
357 select USB_EHCI_BIG_ENDIAN_MMIO
358 select USE_OF
359 help
360 This enables support for the MIPS Technologies SEAD3 evaluation
361 board.
362
363 config NEC_MARKEINS
364 bool "NEC EMMA2RH Mark-eins board"
365 select SOC_EMMA2RH
366 select HW_HAS_PCI
367 help
368 This enables support for the NEC Electronics Mark-eins boards.
369
370 config MACH_VR41XX
371 bool "NEC VR4100 series based machines"
372 select CEVT_R4K
373 select CSRC_R4K
374 select SYS_HAS_CPU_VR41XX
375 select ARCH_REQUIRE_GPIOLIB
376
377 config NXP_STB220
378 bool "NXP STB220 board"
379 select SOC_PNX833X
380 help
381 Support for NXP Semiconductors STB220 Development Board.
382
383 config NXP_STB225
384 bool "NXP 225 board"
385 select SOC_PNX833X
386 select SOC_PNX8335
387 help
388 Support for NXP Semiconductors STB225 Development Board.
389
390 config PMC_MSP
391 bool "PMC-Sierra MSP chipsets"
392 select CEVT_R4K
393 select CSRC_R4K
394 select DMA_NONCOHERENT
395 select SWAP_IO_SPACE
396 select NO_EXCEPT_FILL
397 select BOOT_RAW
398 select SYS_HAS_CPU_MIPS32_R1
399 select SYS_HAS_CPU_MIPS32_R2
400 select SYS_SUPPORTS_32BIT_KERNEL
401 select SYS_SUPPORTS_BIG_ENDIAN
402 select IRQ_CPU
403 select SERIAL_8250
404 select SERIAL_8250_CONSOLE
405 select USB_EHCI_BIG_ENDIAN_MMIO
406 select USB_EHCI_BIG_ENDIAN_DESC
407 help
408 This adds support for the PMC-Sierra family of Multi-Service
409 Processor System-On-A-Chips. These parts include a number
410 of integrated peripherals, interfaces and DSPs in addition to
411 a variety of MIPS cores.
412
413 config POWERTV
414 bool "Cisco PowerTV"
415 select BOOT_ELF32
416 select CEVT_R4K
417 select CPU_MIPSR2_IRQ_VI
418 select CPU_MIPSR2_IRQ_EI
419 select CSRC_POWERTV
420 select DMA_NONCOHERENT
421 select HW_HAS_PCI
422 select SYS_HAS_EARLY_PRINTK
423 select SYS_HAS_CPU_MIPS32_R2
424 select SYS_SUPPORTS_32BIT_KERNEL
425 select SYS_SUPPORTS_BIG_ENDIAN
426 select SYS_SUPPORTS_HIGHMEM
427 select USB_OHCI_LITTLE_ENDIAN
428 help
429 This enables support for the Cisco PowerTV Platform.
430
431 config RALINK
432 bool "Ralink based machines"
433 select CEVT_R4K
434 select CSRC_R4K
435 select BOOT_RAW
436 select DMA_NONCOHERENT
437 select IRQ_CPU
438 select USE_OF
439 select SYS_HAS_CPU_MIPS32_R1
440 select SYS_HAS_CPU_MIPS32_R2
441 select SYS_SUPPORTS_32BIT_KERNEL
442 select SYS_SUPPORTS_LITTLE_ENDIAN
443 select SYS_HAS_EARLY_PRINTK
444 select HAVE_MACH_CLKDEV
445 select CLKDEV_LOOKUP
446
447 config SGI_IP22
448 bool "SGI IP22 (Indy/Indigo2)"
449 select FW_ARC
450 select FW_ARC32
451 select BOOT_ELF32
452 select CEVT_R4K
453 select CSRC_R4K
454 select DEFAULT_SGI_PARTITION
455 select DMA_NONCOHERENT
456 select HW_HAS_EISA
457 select I8253
458 select I8259
459 select IP22_CPU_SCACHE
460 select IRQ_CPU
461 select GENERIC_ISA_DMA_SUPPORT_BROKEN
462 select SGI_HAS_I8042
463 select SGI_HAS_INDYDOG
464 select SGI_HAS_HAL2
465 select SGI_HAS_SEEQ
466 select SGI_HAS_WD93
467 select SGI_HAS_ZILOG
468 select SWAP_IO_SPACE
469 select SYS_HAS_CPU_R4X00
470 select SYS_HAS_CPU_R5000
471 #
472 # Disable EARLY_PRINTK for now since it leads to overwritten prom
473 # memory during early boot on some machines.
474 #
475 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
476 # for a more details discussion
477 #
478 # select SYS_HAS_EARLY_PRINTK
479 select SYS_SUPPORTS_32BIT_KERNEL
480 select SYS_SUPPORTS_64BIT_KERNEL
481 select SYS_SUPPORTS_BIG_ENDIAN
482 help
483 This are the SGI Indy, Challenge S and Indigo2, as well as certain
484 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
485 that runs on these, say Y here.
486
487 config SGI_IP27
488 bool "SGI IP27 (Origin200/2000)"
489 select FW_ARC
490 select FW_ARC64
491 select BOOT_ELF64
492 select DEFAULT_SGI_PARTITION
493 select DMA_COHERENT
494 select SYS_HAS_EARLY_PRINTK
495 select HW_HAS_PCI
496 select NR_CPUS_DEFAULT_64
497 select SYS_HAS_CPU_R10000
498 select SYS_SUPPORTS_64BIT_KERNEL
499 select SYS_SUPPORTS_BIG_ENDIAN
500 select SYS_SUPPORTS_NUMA
501 select SYS_SUPPORTS_SMP
502 help
503 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
504 workstations. To compile a Linux kernel that runs on these, say Y
505 here.
506
507 config SGI_IP28
508 bool "SGI IP28 (Indigo2 R10k)"
509 select FW_ARC
510 select FW_ARC64
511 select BOOT_ELF64
512 select CEVT_R4K
513 select CSRC_R4K
514 select DEFAULT_SGI_PARTITION
515 select DMA_NONCOHERENT
516 select GENERIC_ISA_DMA_SUPPORT_BROKEN
517 select IRQ_CPU
518 select HW_HAS_EISA
519 select I8253
520 select I8259
521 select SGI_HAS_I8042
522 select SGI_HAS_INDYDOG
523 select SGI_HAS_HAL2
524 select SGI_HAS_SEEQ
525 select SGI_HAS_WD93
526 select SGI_HAS_ZILOG
527 select SWAP_IO_SPACE
528 select SYS_HAS_CPU_R10000
529 #
530 # Disable EARLY_PRINTK for now since it leads to overwritten prom
531 # memory during early boot on some machines.
532 #
533 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
534 # for a more details discussion
535 #
536 # select SYS_HAS_EARLY_PRINTK
537 select SYS_SUPPORTS_64BIT_KERNEL
538 select SYS_SUPPORTS_BIG_ENDIAN
539 help
540 This is the SGI Indigo2 with R10000 processor. To compile a Linux
541 kernel that runs on these, say Y here.
542
543 config SGI_IP32
544 bool "SGI IP32 (O2)"
545 select FW_ARC
546 select FW_ARC32
547 select BOOT_ELF32
548 select CEVT_R4K
549 select CSRC_R4K
550 select DMA_NONCOHERENT
551 select HW_HAS_PCI
552 select IRQ_CPU
553 select R5000_CPU_SCACHE
554 select RM7000_CPU_SCACHE
555 select SYS_HAS_CPU_R5000
556 select SYS_HAS_CPU_R10000 if BROKEN
557 select SYS_HAS_CPU_RM7000
558 select SYS_HAS_CPU_NEVADA
559 select SYS_SUPPORTS_64BIT_KERNEL
560 select SYS_SUPPORTS_BIG_ENDIAN
561 help
562 If you want this kernel to run on SGI O2 workstation, say Y here.
563
564 config SIBYTE_CRHINE
565 bool "Sibyte BCM91120C-CRhine"
566 select BOOT_ELF32
567 select DMA_COHERENT
568 select SIBYTE_BCM1120
569 select SWAP_IO_SPACE
570 select SYS_HAS_CPU_SB1
571 select SYS_SUPPORTS_BIG_ENDIAN
572 select SYS_SUPPORTS_LITTLE_ENDIAN
573
574 config SIBYTE_CARMEL
575 bool "Sibyte BCM91120x-Carmel"
576 select BOOT_ELF32
577 select DMA_COHERENT
578 select SIBYTE_BCM1120
579 select SWAP_IO_SPACE
580 select SYS_HAS_CPU_SB1
581 select SYS_SUPPORTS_BIG_ENDIAN
582 select SYS_SUPPORTS_LITTLE_ENDIAN
583
584 config SIBYTE_CRHONE
585 bool "Sibyte BCM91125C-CRhone"
586 select BOOT_ELF32
587 select DMA_COHERENT
588 select SIBYTE_BCM1125
589 select SWAP_IO_SPACE
590 select SYS_HAS_CPU_SB1
591 select SYS_SUPPORTS_BIG_ENDIAN
592 select SYS_SUPPORTS_HIGHMEM
593 select SYS_SUPPORTS_LITTLE_ENDIAN
594
595 config SIBYTE_RHONE
596 bool "Sibyte BCM91125E-Rhone"
597 select BOOT_ELF32
598 select DMA_COHERENT
599 select SIBYTE_BCM1125H
600 select SWAP_IO_SPACE
601 select SYS_HAS_CPU_SB1
602 select SYS_SUPPORTS_BIG_ENDIAN
603 select SYS_SUPPORTS_LITTLE_ENDIAN
604
605 config SIBYTE_SWARM
606 bool "Sibyte BCM91250A-SWARM"
607 select BOOT_ELF32
608 select DMA_COHERENT
609 select HAVE_PATA_PLATFORM
610 select NR_CPUS_DEFAULT_2
611 select SIBYTE_SB1250
612 select SWAP_IO_SPACE
613 select SYS_HAS_CPU_SB1
614 select SYS_SUPPORTS_BIG_ENDIAN
615 select SYS_SUPPORTS_HIGHMEM
616 select SYS_SUPPORTS_LITTLE_ENDIAN
617 select ZONE_DMA32 if 64BIT
618
619 config SIBYTE_LITTLESUR
620 bool "Sibyte BCM91250C2-LittleSur"
621 select BOOT_ELF32
622 select DMA_COHERENT
623 select HAVE_PATA_PLATFORM
624 select NR_CPUS_DEFAULT_2
625 select SIBYTE_SB1250
626 select SWAP_IO_SPACE
627 select SYS_HAS_CPU_SB1
628 select SYS_SUPPORTS_BIG_ENDIAN
629 select SYS_SUPPORTS_HIGHMEM
630 select SYS_SUPPORTS_LITTLE_ENDIAN
631
632 config SIBYTE_SENTOSA
633 bool "Sibyte BCM91250E-Sentosa"
634 select BOOT_ELF32
635 select DMA_COHERENT
636 select NR_CPUS_DEFAULT_2
637 select SIBYTE_SB1250
638 select SWAP_IO_SPACE
639 select SYS_HAS_CPU_SB1
640 select SYS_SUPPORTS_BIG_ENDIAN
641 select SYS_SUPPORTS_LITTLE_ENDIAN
642
643 config SIBYTE_BIGSUR
644 bool "Sibyte BCM91480B-BigSur"
645 select BOOT_ELF32
646 select DMA_COHERENT
647 select NR_CPUS_DEFAULT_4
648 select SIBYTE_BCM1x80
649 select SWAP_IO_SPACE
650 select SYS_HAS_CPU_SB1
651 select SYS_SUPPORTS_BIG_ENDIAN
652 select SYS_SUPPORTS_HIGHMEM
653 select SYS_SUPPORTS_LITTLE_ENDIAN
654 select ZONE_DMA32 if 64BIT
655
656 config SNI_RM
657 bool "SNI RM200/300/400"
658 select FW_ARC if CPU_LITTLE_ENDIAN
659 select FW_ARC32 if CPU_LITTLE_ENDIAN
660 select FW_SNIPROM if CPU_BIG_ENDIAN
661 select ARCH_MAY_HAVE_PC_FDC
662 select BOOT_ELF32
663 select CEVT_R4K
664 select CSRC_R4K
665 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
666 select DMA_NONCOHERENT
667 select GENERIC_ISA_DMA
668 select HAVE_PCSPKR_PLATFORM
669 select HW_HAS_EISA
670 select HW_HAS_PCI
671 select IRQ_CPU
672 select I8253
673 select I8259
674 select ISA
675 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
676 select SYS_HAS_CPU_R4X00
677 select SYS_HAS_CPU_R5000
678 select SYS_HAS_CPU_R10000
679 select R5000_CPU_SCACHE
680 select SYS_HAS_EARLY_PRINTK
681 select SYS_SUPPORTS_32BIT_KERNEL
682 select SYS_SUPPORTS_64BIT_KERNEL
683 select SYS_SUPPORTS_BIG_ENDIAN
684 select SYS_SUPPORTS_HIGHMEM
685 select SYS_SUPPORTS_LITTLE_ENDIAN
686 help
687 The SNI RM200/300/400 are MIPS-based machines manufactured by
688 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
689 Technology and now in turn merged with Fujitsu. Say Y here to
690 support this machine type.
691
692 config MACH_TX39XX
693 bool "Toshiba TX39 series based machines"
694
695 config MACH_TX49XX
696 bool "Toshiba TX49 series based machines"
697
698 config MIKROTIK_RB532
699 bool "Mikrotik RB532 boards"
700 select CEVT_R4K
701 select CSRC_R4K
702 select DMA_NONCOHERENT
703 select HW_HAS_PCI
704 select IRQ_CPU
705 select SYS_HAS_CPU_MIPS32_R1
706 select SYS_SUPPORTS_32BIT_KERNEL
707 select SYS_SUPPORTS_LITTLE_ENDIAN
708 select SWAP_IO_SPACE
709 select BOOT_RAW
710 select ARCH_REQUIRE_GPIOLIB
711 help
712 Support the Mikrotik(tm) RouterBoard 532 series,
713 based on the IDT RC32434 SoC.
714
715 config WR_PPMC
716 bool "Wind River PPMC board"
717 select CEVT_R4K
718 select CSRC_R4K
719 select IRQ_CPU
720 select BOOT_ELF32
721 select DMA_NONCOHERENT
722 select HW_HAS_PCI
723 select PCI_GT64XXX_PCI0
724 select SWAP_IO_SPACE
725 select SYS_HAS_CPU_MIPS32_R1
726 select SYS_HAS_CPU_MIPS32_R2
727 select SYS_HAS_CPU_MIPS64_R1
728 select SYS_HAS_CPU_NEVADA
729 select SYS_HAS_CPU_RM7000
730 select SYS_SUPPORTS_32BIT_KERNEL
731 select SYS_SUPPORTS_64BIT_KERNEL
732 select SYS_SUPPORTS_BIG_ENDIAN
733 select SYS_SUPPORTS_LITTLE_ENDIAN
734 help
735 This enables support for the Wind River MIPS32 4KC PPMC evaluation
736 board, which is based on GT64120 bridge chip.
737
738 config CAVIUM_OCTEON_SIMULATOR
739 bool "Cavium Networks Octeon Simulator"
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_CPU_CAVIUM_OCTEON
747 select HOLES_IN_ZONE
748 help
749 The Octeon simulator is software performance model of the Cavium
750 Octeon Processor. It supports simulating Octeon processors on x86
751 hardware.
752
753 config CAVIUM_OCTEON_REFERENCE_BOARD
754 bool "Cavium Networks Octeon reference board"
755 select CEVT_R4K
756 select 64BIT_PHYS_ADDR
757 select DMA_COHERENT
758 select SYS_SUPPORTS_64BIT_KERNEL
759 select SYS_SUPPORTS_BIG_ENDIAN
760 select EDAC_SUPPORT
761 select SYS_SUPPORTS_HOTPLUG_CPU
762 select SYS_HAS_EARLY_PRINTK
763 select SYS_HAS_CPU_CAVIUM_OCTEON
764 select SWAP_IO_SPACE
765 select HW_HAS_PCI
766 select ARCH_SUPPORTS_MSI
767 select ZONE_DMA32
768 select USB_ARCH_HAS_OHCI
769 select USB_ARCH_HAS_EHCI
770 select HOLES_IN_ZONE
771 help
772 This option supports all of the Octeon reference boards from Cavium
773 Networks. It builds a kernel that dynamically determines the Octeon
774 CPU type and supports all known board reference implementations.
775 Some of the supported boards are:
776 EBT3000
777 EBH3000
778 EBH3100
779 Thunder
780 Kodama
781 Hikari
782 Say Y here for most Octeon reference boards.
783
784 config NLM_XLR_BOARD
785 bool "Netlogic XLR/XLS based systems"
786 select BOOT_ELF32
787 select NLM_COMMON
788 select SYS_HAS_CPU_XLR
789 select SYS_SUPPORTS_SMP
790 select HW_HAS_PCI
791 select SWAP_IO_SPACE
792 select SYS_SUPPORTS_32BIT_KERNEL
793 select SYS_SUPPORTS_64BIT_KERNEL
794 select 64BIT_PHYS_ADDR
795 select SYS_SUPPORTS_BIG_ENDIAN
796 select SYS_SUPPORTS_HIGHMEM
797 select DMA_COHERENT
798 select NR_CPUS_DEFAULT_32
799 select CEVT_R4K
800 select CSRC_R4K
801 select IRQ_CPU
802 select ARCH_SUPPORTS_MSI
803 select ZONE_DMA32 if 64BIT
804 select SYNC_R4K
805 select SYS_HAS_EARLY_PRINTK
806 select USB_ARCH_HAS_OHCI if USB_SUPPORT
807 select USB_ARCH_HAS_EHCI if USB_SUPPORT
808 help
809 Support for systems based on Netlogic XLR and XLS processors.
810 Say Y here if you have a XLR or XLS based board.
811
812 config NLM_XLP_BOARD
813 bool "Netlogic XLP based systems"
814 select BOOT_ELF32
815 select NLM_COMMON
816 select SYS_HAS_CPU_XLP
817 select SYS_SUPPORTS_SMP
818 select HW_HAS_PCI
819 select SYS_SUPPORTS_32BIT_KERNEL
820 select SYS_SUPPORTS_64BIT_KERNEL
821 select 64BIT_PHYS_ADDR
822 select SYS_SUPPORTS_BIG_ENDIAN
823 select SYS_SUPPORTS_LITTLE_ENDIAN
824 select SYS_SUPPORTS_HIGHMEM
825 select DMA_COHERENT
826 select NR_CPUS_DEFAULT_32
827 select CEVT_R4K
828 select CSRC_R4K
829 select IRQ_CPU
830 select ZONE_DMA32 if 64BIT
831 select SYNC_R4K
832 select SYS_HAS_EARLY_PRINTK
833 select USE_OF
834 help
835 This board is based on Netlogic XLP Processor.
836 Say Y here if you have a XLP based board.
837
838 endchoice
839
840 source "arch/mips/alchemy/Kconfig"
841 source "arch/mips/ath79/Kconfig"
842 source "arch/mips/bcm47xx/Kconfig"
843 source "arch/mips/bcm63xx/Kconfig"
844 source "arch/mips/jazz/Kconfig"
845 source "arch/mips/jz4740/Kconfig"
846 source "arch/mips/lantiq/Kconfig"
847 source "arch/mips/lasat/Kconfig"
848 source "arch/mips/pmcs-msp71xx/Kconfig"
849 source "arch/mips/powertv/Kconfig"
850 source "arch/mips/ralink/Kconfig"
851 source "arch/mips/sgi-ip27/Kconfig"
852 source "arch/mips/sibyte/Kconfig"
853 source "arch/mips/txx9/Kconfig"
854 source "arch/mips/vr41xx/Kconfig"
855 source "arch/mips/cavium-octeon/Kconfig"
856 source "arch/mips/loongson/Kconfig"
857 source "arch/mips/loongson1/Kconfig"
858 source "arch/mips/netlogic/Kconfig"
859
860 endmenu
861
862 config RWSEM_GENERIC_SPINLOCK
863 bool
864 default y
865
866 config RWSEM_XCHGADD_ALGORITHM
867 bool
868
869 config ARCH_HAS_ILOG2_U32
870 bool
871 default n
872
873 config ARCH_HAS_ILOG2_U64
874 bool
875 default n
876
877 config GENERIC_HWEIGHT
878 bool
879 default y
880
881 config GENERIC_CALIBRATE_DELAY
882 bool
883 default y
884
885 config SCHED_OMIT_FRAME_POINTER
886 bool
887 default y
888
889 #
890 # Select some configuration options automatically based on user selections.
891 #
892 config FW_ARC
893 bool
894
895 config ARCH_MAY_HAVE_PC_FDC
896 bool
897
898 config BOOT_RAW
899 bool
900
901 config CEVT_BCM1480
902 bool
903
904 config CEVT_DS1287
905 bool
906
907 config CEVT_GT641XX
908 bool
909
910 config CEVT_R4K
911 bool
912
913 config CEVT_GIC
914 bool
915
916 config CEVT_SB1250
917 bool
918
919 config CEVT_TXX9
920 bool
921
922 config CSRC_BCM1480
923 bool
924
925 config CSRC_IOASIC
926 bool
927
928 config CSRC_POWERTV
929 bool
930
931 config CSRC_R4K
932 bool
933
934 config CSRC_GIC
935 bool
936
937 config CSRC_SB1250
938 bool
939
940 config GPIO_TXX9
941 select ARCH_REQUIRE_GPIOLIB
942 bool
943
944 config FW_CFE
945 bool
946
947 config ARCH_DMA_ADDR_T_64BIT
948 def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT
949
950 config DMA_COHERENT
951 bool
952
953 config DMA_NONCOHERENT
954 bool
955 select NEED_DMA_MAP_STATE
956
957 config NEED_DMA_MAP_STATE
958 bool
959
960 config SYS_HAS_EARLY_PRINTK
961 bool
962
963 config HOTPLUG_CPU
964 bool "Support for hot-pluggable CPUs"
965 depends on SMP && HOTPLUG && SYS_SUPPORTS_HOTPLUG_CPU
966 help
967 Say Y here to allow turning CPUs off and on. CPUs can be
968 controlled through /sys/devices/system/cpu.
969 (Note: power management support will enable this option
970 automatically on SMP systems. )
971 Say N if you want to disable CPU hotplug.
972
973 config SYS_SUPPORTS_HOTPLUG_CPU
974 bool
975
976 config I8259
977 bool
978
979 config MIPS_BONITO64
980 bool
981
982 config MIPS_MSC
983 bool
984
985 config MIPS_NILE4
986 bool
987
988 config SYNC_R4K
989 bool
990
991 config MIPS_MACHINE
992 def_bool n
993
994 config NO_IOPORT
995 def_bool n
996
997 config GENERIC_ISA_DMA
998 bool
999 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1000 select ISA_DMA_API
1001
1002 config GENERIC_ISA_DMA_SUPPORT_BROKEN
1003 bool
1004 select GENERIC_ISA_DMA
1005
1006 config ISA_DMA_API
1007 bool
1008
1009 config HOLES_IN_ZONE
1010 bool
1011
1012 #
1013 # Endianness selection. Sufficiently obscure so many users don't know what to
1014 # answer,so we try hard to limit the available choices. Also the use of a
1015 # choice statement should be more obvious to the user.
1016 #
1017 choice
1018 prompt "Endianness selection"
1019 help
1020 Some MIPS machines can be configured for either little or big endian
1021 byte order. These modes require different kernels and a different
1022 Linux distribution. In general there is one preferred byteorder for a
1023 particular system but some systems are just as commonly used in the
1024 one or the other endianness.
1025
1026 config CPU_BIG_ENDIAN
1027 bool "Big endian"
1028 depends on SYS_SUPPORTS_BIG_ENDIAN
1029
1030 config CPU_LITTLE_ENDIAN
1031 bool "Little endian"
1032 depends on SYS_SUPPORTS_LITTLE_ENDIAN
1033 help
1034
1035 endchoice
1036
1037 config EXPORT_UASM
1038 bool
1039
1040 config SYS_SUPPORTS_APM_EMULATION
1041 bool
1042
1043 config SYS_SUPPORTS_BIG_ENDIAN
1044 bool
1045
1046 config SYS_SUPPORTS_LITTLE_ENDIAN
1047 bool
1048
1049 config SYS_SUPPORTS_HUGETLBFS
1050 bool
1051 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1052 default y
1053
1054 config MIPS_HUGE_TLB_SUPPORT
1055 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1056
1057 config IRQ_CPU
1058 bool
1059
1060 config IRQ_CPU_RM7K
1061 bool
1062
1063 config IRQ_MSP_SLP
1064 bool
1065
1066 config IRQ_MSP_CIC
1067 bool
1068
1069 config IRQ_TXX9
1070 bool
1071
1072 config IRQ_GT641XX
1073 bool
1074
1075 config IRQ_GIC
1076 bool
1077
1078 config PCI_GT64XXX_PCI0
1079 bool
1080
1081 config NO_EXCEPT_FILL
1082 bool
1083
1084 config SOC_EMMA2RH
1085 bool
1086 select CEVT_R4K
1087 select CSRC_R4K
1088 select DMA_NONCOHERENT
1089 select IRQ_CPU
1090 select SWAP_IO_SPACE
1091 select SYS_HAS_CPU_R5500
1092 select SYS_SUPPORTS_32BIT_KERNEL
1093 select SYS_SUPPORTS_64BIT_KERNEL
1094 select SYS_SUPPORTS_BIG_ENDIAN
1095
1096 config SOC_PNX833X
1097 bool
1098 select CEVT_R4K
1099 select CSRC_R4K
1100 select IRQ_CPU
1101 select DMA_NONCOHERENT
1102 select SYS_HAS_CPU_MIPS32_R2
1103 select SYS_SUPPORTS_32BIT_KERNEL
1104 select SYS_SUPPORTS_LITTLE_ENDIAN
1105 select SYS_SUPPORTS_BIG_ENDIAN
1106 select CPU_MIPSR2_IRQ_VI
1107
1108 config SOC_PNX8335
1109 bool
1110 select SOC_PNX833X
1111
1112 config SWAP_IO_SPACE
1113 bool
1114
1115 config SGI_HAS_INDYDOG
1116 bool
1117
1118 config SGI_HAS_HAL2
1119 bool
1120
1121 config SGI_HAS_SEEQ
1122 bool
1123
1124 config SGI_HAS_WD93
1125 bool
1126
1127 config SGI_HAS_ZILOG
1128 bool
1129
1130 config SGI_HAS_I8042
1131 bool
1132
1133 config DEFAULT_SGI_PARTITION
1134 bool
1135
1136 config FW_ARC32
1137 bool
1138
1139 config FW_SNIPROM
1140 bool
1141
1142 config BOOT_ELF32
1143 bool
1144
1145 config MIPS_L1_CACHE_SHIFT
1146 int
1147 default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL || SOC_RT288X
1148 default "6" if MIPS_CPU_SCACHE
1149 default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON
1150 default "5"
1151
1152 config HAVE_STD_PC_SERIAL_PORT
1153 bool
1154
1155 config ARC_CONSOLE
1156 bool "ARC console support"
1157 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1158
1159 config ARC_MEMORY
1160 bool
1161 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1162 default y
1163
1164 config ARC_PROMLIB
1165 bool
1166 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1167 default y
1168
1169 config FW_ARC64
1170 bool
1171
1172 config BOOT_ELF64
1173 bool
1174
1175 menu "CPU selection"
1176
1177 choice
1178 prompt "CPU type"
1179 default CPU_R4X00
1180
1181 config CPU_LOONGSON2E
1182 bool "Loongson 2E"
1183 depends on SYS_HAS_CPU_LOONGSON2E
1184 select CPU_LOONGSON2
1185 help
1186 The Loongson 2E processor implements the MIPS III instruction set
1187 with many extensions.
1188
1189 It has an internal FPGA northbridge, which is compatible to
1190 bonito64.
1191
1192 config CPU_LOONGSON2F
1193 bool "Loongson 2F"
1194 depends on SYS_HAS_CPU_LOONGSON2F
1195 select CPU_LOONGSON2
1196 select ARCH_REQUIRE_GPIOLIB
1197 help
1198 The Loongson 2F processor implements the MIPS III instruction set
1199 with many extensions.
1200
1201 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1202 have a similar programming interface with FPGA northbridge used in
1203 Loongson2E.
1204
1205 config CPU_LOONGSON1B
1206 bool "Loongson 1B"
1207 depends on SYS_HAS_CPU_LOONGSON1B
1208 select CPU_LOONGSON1
1209 help
1210 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1211 release 2 instruction set.
1212
1213 config CPU_MIPS32_R1
1214 bool "MIPS32 Release 1"
1215 depends on SYS_HAS_CPU_MIPS32_R1
1216 select CPU_HAS_PREFETCH
1217 select CPU_SUPPORTS_32BIT_KERNEL
1218 select CPU_SUPPORTS_HIGHMEM
1219 help
1220 Choose this option to build a kernel for release 1 or later of the
1221 MIPS32 architecture. Most modern embedded systems with a 32-bit
1222 MIPS processor are based on a MIPS32 processor. If you know the
1223 specific type of processor in your system, choose those that one
1224 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1225 Release 2 of the MIPS32 architecture is available since several
1226 years so chances are you even have a MIPS32 Release 2 processor
1227 in which case you should choose CPU_MIPS32_R2 instead for better
1228 performance.
1229
1230 config CPU_MIPS32_R2
1231 bool "MIPS32 Release 2"
1232 depends on SYS_HAS_CPU_MIPS32_R2
1233 select CPU_HAS_PREFETCH
1234 select CPU_SUPPORTS_32BIT_KERNEL
1235 select CPU_SUPPORTS_HIGHMEM
1236 select HAVE_KVM
1237 help
1238 Choose this option to build a kernel for release 2 or later of the
1239 MIPS32 architecture. Most modern embedded systems with a 32-bit
1240 MIPS processor are based on a MIPS32 processor. If you know the
1241 specific type of processor in your system, choose those that one
1242 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1243
1244 config CPU_MIPS64_R1
1245 bool "MIPS64 Release 1"
1246 depends on SYS_HAS_CPU_MIPS64_R1
1247 select CPU_HAS_PREFETCH
1248 select CPU_SUPPORTS_32BIT_KERNEL
1249 select CPU_SUPPORTS_64BIT_KERNEL
1250 select CPU_SUPPORTS_HIGHMEM
1251 select CPU_SUPPORTS_HUGEPAGES
1252 help
1253 Choose this option to build a kernel for release 1 or later of the
1254 MIPS64 architecture. Many modern embedded systems with a 64-bit
1255 MIPS processor are based on a MIPS64 processor. If you know the
1256 specific type of processor in your system, choose those that one
1257 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1258 Release 2 of the MIPS64 architecture is available since several
1259 years so chances are you even have a MIPS64 Release 2 processor
1260 in which case you should choose CPU_MIPS64_R2 instead for better
1261 performance.
1262
1263 config CPU_MIPS64_R2
1264 bool "MIPS64 Release 2"
1265 depends on SYS_HAS_CPU_MIPS64_R2
1266 select CPU_HAS_PREFETCH
1267 select CPU_SUPPORTS_32BIT_KERNEL
1268 select CPU_SUPPORTS_64BIT_KERNEL
1269 select CPU_SUPPORTS_HIGHMEM
1270 select CPU_SUPPORTS_HUGEPAGES
1271 help
1272 Choose this option to build a kernel for release 2 or later of the
1273 MIPS64 architecture. Many modern embedded systems with a 64-bit
1274 MIPS processor are based on a MIPS64 processor. If you know the
1275 specific type of processor in your system, choose those that one
1276 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1277
1278 config CPU_R3000
1279 bool "R3000"
1280 depends on SYS_HAS_CPU_R3000
1281 select CPU_HAS_WB
1282 select CPU_SUPPORTS_32BIT_KERNEL
1283 select CPU_SUPPORTS_HIGHMEM
1284 help
1285 Please make sure to pick the right CPU type. Linux/MIPS is not
1286 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1287 *not* work on R4000 machines and vice versa. However, since most
1288 of the supported machines have an R4000 (or similar) CPU, R4x00
1289 might be a safe bet. If the resulting kernel does not work,
1290 try to recompile with R3000.
1291
1292 config CPU_TX39XX
1293 bool "R39XX"
1294 depends on SYS_HAS_CPU_TX39XX
1295 select CPU_SUPPORTS_32BIT_KERNEL
1296
1297 config CPU_VR41XX
1298 bool "R41xx"
1299 depends on SYS_HAS_CPU_VR41XX
1300 select CPU_SUPPORTS_32BIT_KERNEL
1301 select CPU_SUPPORTS_64BIT_KERNEL
1302 help
1303 The options selects support for the NEC VR4100 series of processors.
1304 Only choose this option if you have one of these processors as a
1305 kernel built with this option will not run on any other type of
1306 processor or vice versa.
1307
1308 config CPU_R4300
1309 bool "R4300"
1310 depends on SYS_HAS_CPU_R4300
1311 select CPU_SUPPORTS_32BIT_KERNEL
1312 select CPU_SUPPORTS_64BIT_KERNEL
1313 help
1314 MIPS Technologies R4300-series processors.
1315
1316 config CPU_R4X00
1317 bool "R4x00"
1318 depends on SYS_HAS_CPU_R4X00
1319 select CPU_SUPPORTS_32BIT_KERNEL
1320 select CPU_SUPPORTS_64BIT_KERNEL
1321 select CPU_SUPPORTS_HUGEPAGES
1322 help
1323 MIPS Technologies R4000-series processors other than 4300, including
1324 the R4000, R4400, R4600, and 4700.
1325
1326 config CPU_TX49XX
1327 bool "R49XX"
1328 depends on SYS_HAS_CPU_TX49XX
1329 select CPU_HAS_PREFETCH
1330 select CPU_SUPPORTS_32BIT_KERNEL
1331 select CPU_SUPPORTS_64BIT_KERNEL
1332 select CPU_SUPPORTS_HUGEPAGES
1333
1334 config CPU_R5000
1335 bool "R5000"
1336 depends on SYS_HAS_CPU_R5000
1337 select CPU_SUPPORTS_32BIT_KERNEL
1338 select CPU_SUPPORTS_64BIT_KERNEL
1339 select CPU_SUPPORTS_HUGEPAGES
1340 help
1341 MIPS Technologies R5000-series processors other than the Nevada.
1342
1343 config CPU_R5432
1344 bool "R5432"
1345 depends on SYS_HAS_CPU_R5432
1346 select CPU_SUPPORTS_32BIT_KERNEL
1347 select CPU_SUPPORTS_64BIT_KERNEL
1348 select CPU_SUPPORTS_HUGEPAGES
1349
1350 config CPU_R5500
1351 bool "R5500"
1352 depends on SYS_HAS_CPU_R5500
1353 select CPU_SUPPORTS_32BIT_KERNEL
1354 select CPU_SUPPORTS_64BIT_KERNEL
1355 select CPU_SUPPORTS_HUGEPAGES
1356 help
1357 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1358 instruction set.
1359
1360 config CPU_R6000
1361 bool "R6000"
1362 depends on SYS_HAS_CPU_R6000
1363 select CPU_SUPPORTS_32BIT_KERNEL
1364 help
1365 MIPS Technologies R6000 and R6000A series processors. Note these
1366 processors are extremely rare and the support for them is incomplete.
1367
1368 config CPU_NEVADA
1369 bool "RM52xx"
1370 depends on SYS_HAS_CPU_NEVADA
1371 select CPU_SUPPORTS_32BIT_KERNEL
1372 select CPU_SUPPORTS_64BIT_KERNEL
1373 select CPU_SUPPORTS_HUGEPAGES
1374 help
1375 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1376
1377 config CPU_R8000
1378 bool "R8000"
1379 depends on SYS_HAS_CPU_R8000
1380 select CPU_HAS_PREFETCH
1381 select CPU_SUPPORTS_64BIT_KERNEL
1382 help
1383 MIPS Technologies R8000 processors. Note these processors are
1384 uncommon and the support for them is incomplete.
1385
1386 config CPU_R10000
1387 bool "R10000"
1388 depends on SYS_HAS_CPU_R10000
1389 select CPU_HAS_PREFETCH
1390 select CPU_SUPPORTS_32BIT_KERNEL
1391 select CPU_SUPPORTS_64BIT_KERNEL
1392 select CPU_SUPPORTS_HIGHMEM
1393 select CPU_SUPPORTS_HUGEPAGES
1394 help
1395 MIPS Technologies R10000-series processors.
1396
1397 config CPU_RM7000
1398 bool "RM7000"
1399 depends on SYS_HAS_CPU_RM7000
1400 select CPU_HAS_PREFETCH
1401 select CPU_SUPPORTS_32BIT_KERNEL
1402 select CPU_SUPPORTS_64BIT_KERNEL
1403 select CPU_SUPPORTS_HIGHMEM
1404 select CPU_SUPPORTS_HUGEPAGES
1405
1406 config CPU_SB1
1407 bool "SB1"
1408 depends on SYS_HAS_CPU_SB1
1409 select CPU_SUPPORTS_32BIT_KERNEL
1410 select CPU_SUPPORTS_64BIT_KERNEL
1411 select CPU_SUPPORTS_HIGHMEM
1412 select CPU_SUPPORTS_HUGEPAGES
1413 select WEAK_ORDERING
1414
1415 config CPU_CAVIUM_OCTEON
1416 bool "Cavium Octeon processor"
1417 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1418 select ARCH_SPARSEMEM_ENABLE
1419 select CPU_HAS_PREFETCH
1420 select CPU_SUPPORTS_64BIT_KERNEL
1421 select SYS_SUPPORTS_SMP
1422 select NR_CPUS_DEFAULT_16
1423 select WEAK_ORDERING
1424 select CPU_SUPPORTS_HIGHMEM
1425 select CPU_SUPPORTS_HUGEPAGES
1426 select LIBFDT
1427 select USE_OF
1428 select USB_EHCI_BIG_ENDIAN_MMIO
1429 help
1430 The Cavium Octeon processor is a highly integrated chip containing
1431 many ethernet hardware widgets for networking tasks. The processor
1432 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1433 Full details can be found at http://www.caviumnetworks.com.
1434
1435 config CPU_BMIPS3300
1436 bool "BMIPS3300"
1437 depends on SYS_HAS_CPU_BMIPS3300
1438 select CPU_BMIPS
1439 help
1440 Broadcom BMIPS3300 processors.
1441
1442 config CPU_BMIPS4350
1443 bool "BMIPS4350"
1444 depends on SYS_HAS_CPU_BMIPS4350
1445 select CPU_BMIPS
1446 select SYS_SUPPORTS_SMP
1447 select SYS_SUPPORTS_HOTPLUG_CPU
1448 help
1449 Broadcom BMIPS4350 ("VIPER") processors.
1450
1451 config CPU_BMIPS4380
1452 bool "BMIPS4380"
1453 depends on SYS_HAS_CPU_BMIPS4380
1454 select CPU_BMIPS
1455 select SYS_SUPPORTS_SMP
1456 select SYS_SUPPORTS_HOTPLUG_CPU
1457 help
1458 Broadcom BMIPS4380 processors.
1459
1460 config CPU_BMIPS5000
1461 bool "BMIPS5000"
1462 depends on SYS_HAS_CPU_BMIPS5000
1463 select CPU_BMIPS
1464 select CPU_SUPPORTS_HIGHMEM
1465 select MIPS_CPU_SCACHE
1466 select SYS_SUPPORTS_SMP
1467 select SYS_SUPPORTS_HOTPLUG_CPU
1468 help
1469 Broadcom BMIPS5000 processors.
1470
1471 config CPU_XLR
1472 bool "Netlogic XLR SoC"
1473 depends on SYS_HAS_CPU_XLR
1474 select CPU_SUPPORTS_32BIT_KERNEL
1475 select CPU_SUPPORTS_64BIT_KERNEL
1476 select CPU_SUPPORTS_HIGHMEM
1477 select CPU_SUPPORTS_HUGEPAGES
1478 select WEAK_ORDERING
1479 select WEAK_REORDERING_BEYOND_LLSC
1480 help
1481 Netlogic Microsystems XLR/XLS processors.
1482
1483 config CPU_XLP
1484 bool "Netlogic XLP SoC"
1485 depends on SYS_HAS_CPU_XLP
1486 select CPU_SUPPORTS_32BIT_KERNEL
1487 select CPU_SUPPORTS_64BIT_KERNEL
1488 select CPU_SUPPORTS_HIGHMEM
1489 select WEAK_ORDERING
1490 select WEAK_REORDERING_BEYOND_LLSC
1491 select CPU_HAS_PREFETCH
1492 select CPU_MIPSR2
1493 help
1494 Netlogic Microsystems XLP processors.
1495 endchoice
1496
1497 if CPU_LOONGSON2F
1498 config CPU_NOP_WORKAROUNDS
1499 bool
1500
1501 config CPU_JUMP_WORKAROUNDS
1502 bool
1503
1504 config CPU_LOONGSON2F_WORKAROUNDS
1505 bool "Loongson 2F Workarounds"
1506 default y
1507 select CPU_NOP_WORKAROUNDS
1508 select CPU_JUMP_WORKAROUNDS
1509 help
1510 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1511 require workarounds. Without workarounds the system may hang
1512 unexpectedly. For more information please refer to the gas
1513 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1514
1515 Loongson 2F03 and later have fixed these issues and no workarounds
1516 are needed. The workarounds have no significant side effect on them
1517 but may decrease the performance of the system so this option should
1518 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1519 systems.
1520
1521 If unsure, please say Y.
1522 endif # CPU_LOONGSON2F
1523
1524 config SYS_SUPPORTS_ZBOOT
1525 bool
1526 select HAVE_KERNEL_GZIP
1527 select HAVE_KERNEL_BZIP2
1528 select HAVE_KERNEL_LZMA
1529 select HAVE_KERNEL_LZO
1530
1531 config SYS_SUPPORTS_ZBOOT_UART16550
1532 bool
1533 select SYS_SUPPORTS_ZBOOT
1534
1535 config CPU_LOONGSON2
1536 bool
1537 select CPU_SUPPORTS_32BIT_KERNEL
1538 select CPU_SUPPORTS_64BIT_KERNEL
1539 select CPU_SUPPORTS_HIGHMEM
1540 select CPU_SUPPORTS_HUGEPAGES
1541
1542 config CPU_LOONGSON1
1543 bool
1544 select CPU_MIPS32
1545 select CPU_MIPSR2
1546 select CPU_HAS_PREFETCH
1547 select CPU_SUPPORTS_32BIT_KERNEL
1548 select CPU_SUPPORTS_HIGHMEM
1549
1550 config CPU_BMIPS
1551 bool
1552 select CPU_MIPS32
1553 select CPU_SUPPORTS_32BIT_KERNEL
1554 select DMA_NONCOHERENT
1555 select IRQ_CPU
1556 select SWAP_IO_SPACE
1557 select WEAK_ORDERING
1558
1559 config SYS_HAS_CPU_LOONGSON2E
1560 bool
1561
1562 config SYS_HAS_CPU_LOONGSON2F
1563 bool
1564 select CPU_SUPPORTS_CPUFREQ
1565 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1566 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1567
1568 config SYS_HAS_CPU_LOONGSON1B
1569 bool
1570
1571 config SYS_HAS_CPU_MIPS32_R1
1572 bool
1573
1574 config SYS_HAS_CPU_MIPS32_R2
1575 bool
1576
1577 config SYS_HAS_CPU_MIPS64_R1
1578 bool
1579
1580 config SYS_HAS_CPU_MIPS64_R2
1581 bool
1582
1583 config SYS_HAS_CPU_R3000
1584 bool
1585
1586 config SYS_HAS_CPU_TX39XX
1587 bool
1588
1589 config SYS_HAS_CPU_VR41XX
1590 bool
1591
1592 config SYS_HAS_CPU_R4300
1593 bool
1594
1595 config SYS_HAS_CPU_R4X00
1596 bool
1597
1598 config SYS_HAS_CPU_TX49XX
1599 bool
1600
1601 config SYS_HAS_CPU_R5000
1602 bool
1603
1604 config SYS_HAS_CPU_R5432
1605 bool
1606
1607 config SYS_HAS_CPU_R5500
1608 bool
1609
1610 config SYS_HAS_CPU_R6000
1611 bool
1612
1613 config SYS_HAS_CPU_NEVADA
1614 bool
1615
1616 config SYS_HAS_CPU_R8000
1617 bool
1618
1619 config SYS_HAS_CPU_R10000
1620 bool
1621
1622 config SYS_HAS_CPU_RM7000
1623 bool
1624
1625 config SYS_HAS_CPU_SB1
1626 bool
1627
1628 config SYS_HAS_CPU_CAVIUM_OCTEON
1629 bool
1630
1631 config SYS_HAS_CPU_BMIPS3300
1632 bool
1633
1634 config SYS_HAS_CPU_BMIPS4350
1635 bool
1636
1637 config SYS_HAS_CPU_BMIPS4380
1638 bool
1639
1640 config SYS_HAS_CPU_BMIPS5000
1641 bool
1642
1643 config SYS_HAS_CPU_XLR
1644 bool
1645
1646 config SYS_HAS_CPU_XLP
1647 bool
1648
1649 #
1650 # CPU may reorder R->R, R->W, W->R, W->W
1651 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1652 #
1653 config WEAK_ORDERING
1654 bool
1655
1656 #
1657 # CPU may reorder reads and writes beyond LL/SC
1658 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1659 #
1660 config WEAK_REORDERING_BEYOND_LLSC
1661 bool
1662 endmenu
1663
1664 #
1665 # These two indicate any level of the MIPS32 and MIPS64 architecture
1666 #
1667 config CPU_MIPS32
1668 bool
1669 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1670
1671 config CPU_MIPS64
1672 bool
1673 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1674
1675 #
1676 # These two indicate the revision of the architecture, either Release 1 or Release 2
1677 #
1678 config CPU_MIPSR1
1679 bool
1680 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1681
1682 config CPU_MIPSR2
1683 bool
1684 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1685
1686 config SYS_SUPPORTS_32BIT_KERNEL
1687 bool
1688 config SYS_SUPPORTS_64BIT_KERNEL
1689 bool
1690 config CPU_SUPPORTS_32BIT_KERNEL
1691 bool
1692 config CPU_SUPPORTS_64BIT_KERNEL
1693 bool
1694 config CPU_SUPPORTS_CPUFREQ
1695 bool
1696 config CPU_SUPPORTS_ADDRWINCFG
1697 bool
1698 config CPU_SUPPORTS_HUGEPAGES
1699 bool
1700 config CPU_SUPPORTS_UNCACHED_ACCELERATED
1701 bool
1702 config MIPS_PGD_C0_CONTEXT
1703 bool
1704 default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
1705
1706 #
1707 # Set to y for ptrace access to watch registers.
1708 #
1709 config HARDWARE_WATCHPOINTS
1710 bool
1711 default y if CPU_MIPSR1 || CPU_MIPSR2
1712
1713 menu "Kernel type"
1714
1715 choice
1716 prompt "Kernel code model"
1717 help
1718 You should only select this option if you have a workload that
1719 actually benefits from 64-bit processing or if your machine has
1720 large memory. You will only be presented a single option in this
1721 menu if your system does not support both 32-bit and 64-bit kernels.
1722
1723 config 32BIT
1724 bool "32-bit kernel"
1725 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1726 select TRAD_SIGNALS
1727 help
1728 Select this option if you want to build a 32-bit kernel.
1729 config 64BIT
1730 bool "64-bit kernel"
1731 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1732 help
1733 Select this option if you want to build a 64-bit kernel.
1734
1735 endchoice
1736
1737 config KVM_GUEST
1738 bool "KVM Guest Kernel"
1739 help
1740 Select this option if building a guest kernel for KVM (Trap & Emulate) mode
1741
1742 config KVM_HOST_FREQ
1743 int "KVM Host Processor Frequency (MHz)"
1744 depends on KVM_GUEST
1745 default 500
1746 help
1747 Select this option if building a guest kernel for KVM to skip
1748 RTC emulation when determining guest CPU Frequency. Instead, the guest
1749 processor frequency is automatically derived from the host frequency.
1750
1751 choice
1752 prompt "Kernel page size"
1753 default PAGE_SIZE_4KB
1754
1755 config PAGE_SIZE_4KB
1756 bool "4kB"
1757 depends on !CPU_LOONGSON2
1758 help
1759 This option select the standard 4kB Linux page size. On some
1760 R3000-family processors this is the only available page size. Using
1761 4kB page size will minimize memory consumption and is therefore
1762 recommended for low memory systems.
1763
1764 config PAGE_SIZE_8KB
1765 bool "8kB"
1766 depends on CPU_R8000 || CPU_CAVIUM_OCTEON
1767 help
1768 Using 8kB page size will result in higher performance kernel at
1769 the price of higher memory consumption. This option is available
1770 only on R8000 and cnMIPS processors. Note that you will need a
1771 suitable Linux distribution to support this.
1772
1773 config PAGE_SIZE_16KB
1774 bool "16kB"
1775 depends on !CPU_R3000 && !CPU_TX39XX
1776 help
1777 Using 16kB page size will result in higher performance kernel at
1778 the price of higher memory consumption. This option is available on
1779 all non-R3000 family processors. Note that you will need a suitable
1780 Linux distribution to support this.
1781
1782 config PAGE_SIZE_32KB
1783 bool "32kB"
1784 depends on CPU_CAVIUM_OCTEON
1785 help
1786 Using 32kB page size will result in higher performance kernel at
1787 the price of higher memory consumption. This option is available
1788 only on cnMIPS cores. Note that you will need a suitable Linux
1789 distribution to support this.
1790
1791 config PAGE_SIZE_64KB
1792 bool "64kB"
1793 depends on !CPU_R3000 && !CPU_TX39XX
1794 help
1795 Using 64kB page size will result in higher performance kernel at
1796 the price of higher memory consumption. This option is available on
1797 all non-R3000 family processor. Not that at the time of this
1798 writing this option is still high experimental.
1799
1800 endchoice
1801
1802 config FORCE_MAX_ZONEORDER
1803 int "Maximum zone order"
1804 range 14 64 if HUGETLB_PAGE && PAGE_SIZE_64KB
1805 default "14" if HUGETLB_PAGE && PAGE_SIZE_64KB
1806 range 13 64 if HUGETLB_PAGE && PAGE_SIZE_32KB
1807 default "13" if HUGETLB_PAGE && PAGE_SIZE_32KB
1808 range 12 64 if HUGETLB_PAGE && PAGE_SIZE_16KB
1809 default "12" if HUGETLB_PAGE && PAGE_SIZE_16KB
1810 range 11 64
1811 default "11"
1812 help
1813 The kernel memory allocator divides physically contiguous memory
1814 blocks into "zones", where each zone is a power of two number of
1815 pages. This option selects the largest power of two that the kernel
1816 keeps in the memory allocator. If you need to allocate very large
1817 blocks of physically contiguous memory, then you may need to
1818 increase this value.
1819
1820 This config option is actually maximum order plus one. For example,
1821 a value of 11 means that the largest free memory block is 2^10 pages.
1822
1823 The page size is not necessarily 4KB. Keep this in mind
1824 when choosing a value for this option.
1825
1826 config CEVT_GIC
1827 bool "Use GIC global counter for clock events"
1828 depends on IRQ_GIC && !(MIPS_SEAD3 || MIPS_MT_SMTC)
1829 help
1830 Use the GIC global counter for the clock events. The R4K clock
1831 event driver is always present, so if the platform ends up not
1832 detecting a GIC, it will fall back to the R4K timer for the
1833 generation of clock events.
1834
1835 config BOARD_SCACHE
1836 bool
1837
1838 config IP22_CPU_SCACHE
1839 bool
1840 select BOARD_SCACHE
1841
1842 #
1843 # Support for a MIPS32 / MIPS64 style S-caches
1844 #
1845 config MIPS_CPU_SCACHE
1846 bool
1847 select BOARD_SCACHE
1848
1849 config R5000_CPU_SCACHE
1850 bool
1851 select BOARD_SCACHE
1852
1853 config RM7000_CPU_SCACHE
1854 bool
1855 select BOARD_SCACHE
1856
1857 config SIBYTE_DMA_PAGEOPS
1858 bool "Use DMA to clear/copy pages"
1859 depends on CPU_SB1
1860 help
1861 Instead of using the CPU to zero and copy pages, use a Data Mover
1862 channel. These DMA channels are otherwise unused by the standard
1863 SiByte Linux port. Seems to give a small performance benefit.
1864
1865 config CPU_HAS_PREFETCH
1866 bool
1867
1868 config CPU_GENERIC_DUMP_TLB
1869 bool
1870 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
1871
1872 config CPU_R4K_FPU
1873 bool
1874 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1875
1876 config CPU_R4K_CACHE_TLB
1877 bool
1878 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1879
1880 choice
1881 prompt "MIPS MT options"
1882
1883 config MIPS_MT_DISABLED
1884 bool "Disable multithreading support."
1885 help
1886 Use this option if your workload can't take advantage of
1887 MIPS hardware multithreading support. On systems that don't have
1888 the option of an MT-enabled processor this option will be the only
1889 option in this menu.
1890
1891 config MIPS_MT_SMP
1892 bool "Use 1 TC on each available VPE for SMP"
1893 depends on SYS_SUPPORTS_MULTITHREADING
1894 select CPU_MIPSR2_IRQ_VI
1895 select CPU_MIPSR2_IRQ_EI
1896 select MIPS_MT
1897 select NR_CPUS_DEFAULT_2
1898 select SMP
1899 select SYS_SUPPORTS_SCHED_SMT if SMP
1900 select SYS_SUPPORTS_SMP
1901 select SMP_UP
1902 select MIPS_PERF_SHARED_TC_COUNTERS
1903 help
1904 This is a kernel model which is known a VSMP but lately has been
1905 marketesed into SMVP.
1906 Virtual SMP uses the processor's VPEs to implement virtual
1907 processors. In currently available configuration of the 34K processor
1908 this allows for a dual processor. Both processors will share the same
1909 primary caches; each will obtain the half of the TLB for it's own
1910 exclusive use. For a layman this model can be described as similar to
1911 what Intel calls Hyperthreading.
1912
1913 For further information see http://www.linux-mips.org/wiki/34K#VSMP
1914
1915 config MIPS_MT_SMTC
1916 bool "SMTC: Use all TCs on all VPEs for SMP"
1917 depends on CPU_MIPS32_R2
1918 #depends on CPU_MIPS64_R2 # once there is hardware ...
1919 depends on SYS_SUPPORTS_MULTITHREADING
1920 select CPU_MIPSR2_IRQ_VI
1921 select CPU_MIPSR2_IRQ_EI
1922 select MIPS_MT
1923 select NR_CPUS_DEFAULT_8
1924 select SMP
1925 select SYS_SUPPORTS_SMP
1926 select SMP_UP
1927 help
1928 This is a kernel model which is known a SMTC or lately has been
1929 marketesed into SMVP.
1930 is presenting the available TC's of the core as processors to Linux.
1931 On currently available 34K processors this means a Linux system will
1932 see up to 5 processors. The implementation of the SMTC kernel differs
1933 significantly from VSMP and cannot efficiently coexist in the same
1934 kernel binary so the choice between VSMP and SMTC is a compile time
1935 decision.
1936
1937 For further information see http://www.linux-mips.org/wiki/34K#SMTC
1938
1939 endchoice
1940
1941 config MIPS_MT
1942 bool
1943
1944 config SCHED_SMT
1945 bool "SMT (multithreading) scheduler support"
1946 depends on SYS_SUPPORTS_SCHED_SMT
1947 default n
1948 help
1949 SMT scheduler support improves the CPU scheduler's decision making
1950 when dealing with MIPS MT enabled cores at a cost of slightly
1951 increased overhead in some places. If unsure say N here.
1952
1953 config SYS_SUPPORTS_SCHED_SMT
1954 bool
1955
1956 config SYS_SUPPORTS_MULTITHREADING
1957 bool
1958
1959 config MIPS_MT_FPAFF
1960 bool "Dynamic FPU affinity for FP-intensive threads"
1961 default y
1962 depends on MIPS_MT_SMP || MIPS_MT_SMTC
1963
1964 config MIPS_VPE_LOADER
1965 bool "VPE loader support."
1966 depends on SYS_SUPPORTS_MULTITHREADING
1967 select CPU_MIPSR2_IRQ_VI
1968 select CPU_MIPSR2_IRQ_EI
1969 select MIPS_MT
1970 help
1971 Includes a loader for loading an elf relocatable object
1972 onto another VPE and running it.
1973
1974 config MIPS_MT_SMTC_IM_BACKSTOP
1975 bool "Use per-TC register bits as backstop for inhibited IM bits"
1976 depends on MIPS_MT_SMTC
1977 default n
1978 help
1979 To support multiple TC microthreads acting as "CPUs" within
1980 a VPE, VPE-wide interrupt mask bits must be specially manipulated
1981 during interrupt handling. To support legacy drivers and interrupt
1982 controller management code, SMTC has a "backstop" to track and
1983 if necessary restore the interrupt mask. This has some performance
1984 impact on interrupt service overhead.
1985
1986 config MIPS_MT_SMTC_IRQAFF
1987 bool "Support IRQ affinity API"
1988 depends on MIPS_MT_SMTC
1989 default n
1990 help
1991 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
1992 for SMTC Linux kernel. Requires platform support, of which
1993 an example can be found in the MIPS kernel i8259 and Malta
1994 platform code. Adds some overhead to interrupt dispatch, and
1995 should be used only if you know what you are doing.
1996
1997 config MIPS_VPE_LOADER_TOM
1998 bool "Load VPE program into memory hidden from linux"
1999 depends on MIPS_VPE_LOADER
2000 default y
2001 help
2002 The loader can use memory that is present but has been hidden from
2003 Linux using the kernel command line option "mem=xxMB". It's up to
2004 you to ensure the amount you put in the option and the space your
2005 program requires is less or equal to the amount physically present.
2006
2007 # this should possibly be in drivers/char, but it is rather cpu related. Hmmm
2008 config MIPS_VPE_APSP_API
2009 bool "Enable support for AP/SP API (RTLX)"
2010 depends on MIPS_VPE_LOADER
2011 help
2012
2013 config MIPS_CMP
2014 bool "MIPS CMP framework support"
2015 depends on SYS_SUPPORTS_MIPS_CMP
2016 select SYNC_R4K
2017 select SYS_SUPPORTS_SMP
2018 select SYS_SUPPORTS_SCHED_SMT if SMP
2019 select WEAK_ORDERING
2020 default n
2021 help
2022 This is a placeholder option for the GCMP work. It will need to
2023 be handled differently...
2024
2025 config SB1_PASS_1_WORKAROUNDS
2026 bool
2027 depends on CPU_SB1_PASS_1
2028 default y
2029
2030 config SB1_PASS_2_WORKAROUNDS
2031 bool
2032 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2033 default y
2034
2035 config SB1_PASS_2_1_WORKAROUNDS
2036 bool
2037 depends on CPU_SB1 && CPU_SB1_PASS_2
2038 default y
2039
2040
2041 config 64BIT_PHYS_ADDR
2042 bool
2043
2044 config ARCH_PHYS_ADDR_T_64BIT
2045 def_bool 64BIT_PHYS_ADDR
2046
2047 config CPU_HAS_SMARTMIPS
2048 depends on SYS_SUPPORTS_SMARTMIPS
2049 bool "Support for the SmartMIPS ASE"
2050 help
2051 SmartMIPS is a extension of the MIPS32 architecture aimed at
2052 increased security at both hardware and software level for
2053 smartcards. Enabling this option will allow proper use of the
2054 SmartMIPS instructions by Linux applications. However a kernel with
2055 this option will not work on a MIPS core without SmartMIPS core. If
2056 you don't know you probably don't have SmartMIPS and should say N
2057 here.
2058
2059 config CPU_MICROMIPS
2060 depends on SYS_SUPPORTS_MICROMIPS
2061 bool "Build kernel using microMIPS ISA"
2062 help
2063 When this option is enabled the kernel will be built using the
2064 microMIPS ISA
2065
2066 config CPU_HAS_WB
2067 bool
2068
2069 config XKS01
2070 bool
2071
2072 #
2073 # Vectored interrupt mode is an R2 feature
2074 #
2075 config CPU_MIPSR2_IRQ_VI
2076 bool
2077
2078 #
2079 # Extended interrupt mode is an R2 feature
2080 #
2081 config CPU_MIPSR2_IRQ_EI
2082 bool
2083
2084 config CPU_HAS_SYNC
2085 bool
2086 depends on !CPU_R3000
2087 default y
2088
2089 #
2090 # CPU non-features
2091 #
2092 config CPU_DADDI_WORKAROUNDS
2093 bool
2094
2095 config CPU_R4000_WORKAROUNDS
2096 bool
2097 select CPU_R4400_WORKAROUNDS
2098
2099 config CPU_R4400_WORKAROUNDS
2100 bool
2101
2102 #
2103 # - Highmem only makes sense for the 32-bit kernel.
2104 # - The current highmem code will only work properly on physically indexed
2105 # caches such as R3000, SB1, R7000 or those that look like they're virtually
2106 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2107 # moment we protect the user and offer the highmem option only on machines
2108 # where it's known to be safe. This will not offer highmem on a few systems
2109 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2110 # indexed CPUs but we're playing safe.
2111 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2112 # know they might have memory configurations that could make use of highmem
2113 # support.
2114 #
2115 config HIGHMEM
2116 bool "High Memory Support"
2117 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
2118
2119 config CPU_SUPPORTS_HIGHMEM
2120 bool
2121
2122 config SYS_SUPPORTS_HIGHMEM
2123 bool
2124
2125 config SYS_SUPPORTS_SMARTMIPS
2126 bool
2127
2128 config SYS_SUPPORTS_MICROMIPS
2129 bool
2130
2131 config ARCH_FLATMEM_ENABLE
2132 def_bool y
2133 depends on !NUMA && !CPU_LOONGSON2
2134
2135 config ARCH_DISCONTIGMEM_ENABLE
2136 bool
2137 default y if SGI_IP27
2138 help
2139 Say Y to support efficient handling of discontiguous physical memory,
2140 for architectures which are either NUMA (Non-Uniform Memory Access)
2141 or have huge holes in the physical address space for other reasons.
2142 See <file:Documentation/vm/numa> for more.
2143
2144 config ARCH_SPARSEMEM_ENABLE
2145 bool
2146 select SPARSEMEM_STATIC
2147
2148 config NUMA
2149 bool "NUMA Support"
2150 depends on SYS_SUPPORTS_NUMA
2151 help
2152 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2153 Access). This option improves performance on systems with more
2154 than two nodes; on two node systems it is generally better to
2155 leave it disabled; on single node systems disable this option
2156 disabled.
2157
2158 config SYS_SUPPORTS_NUMA
2159 bool
2160
2161 config NODES_SHIFT
2162 int
2163 default "6"
2164 depends on NEED_MULTIPLE_NODES
2165
2166 config HW_PERF_EVENTS
2167 bool "Enable hardware performance counter support for perf events"
2168 depends on PERF_EVENTS && !MIPS_MT_SMTC && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP)
2169 default y
2170 help
2171 Enable hardware performance counter support for perf events. If
2172 disabled, perf events will use software events only.
2173
2174 source "mm/Kconfig"
2175
2176 config SMP
2177 bool "Multi-Processing support"
2178 depends on SYS_SUPPORTS_SMP
2179 select USE_GENERIC_SMP_HELPERS
2180 help
2181 This enables support for systems with more than one CPU. If you have
2182 a system with only one CPU, like most personal computers, say N. If
2183 you have a system with more than one CPU, say Y.
2184
2185 If you say N here, the kernel will run on single and multiprocessor
2186 machines, but will use only one CPU of a multiprocessor machine. If
2187 you say Y here, the kernel will run on many, but not all,
2188 singleprocessor machines. On a singleprocessor machine, the kernel
2189 will run faster if you say N here.
2190
2191 People using multiprocessor machines who say Y here should also say
2192 Y to "Enhanced Real Time Clock Support", below.
2193
2194 See also the SMP-HOWTO available at
2195 <http://www.tldp.org/docs.html#howto>.
2196
2197 If you don't know what to do here, say N.
2198
2199 config SMP_UP
2200 bool
2201
2202 config SYS_SUPPORTS_MIPS_CMP
2203 bool
2204
2205 config SYS_SUPPORTS_SMP
2206 bool
2207
2208 config NR_CPUS_DEFAULT_1
2209 bool
2210
2211 config NR_CPUS_DEFAULT_2
2212 bool
2213
2214 config NR_CPUS_DEFAULT_4
2215 bool
2216
2217 config NR_CPUS_DEFAULT_8
2218 bool
2219
2220 config NR_CPUS_DEFAULT_16
2221 bool
2222
2223 config NR_CPUS_DEFAULT_32
2224 bool
2225
2226 config NR_CPUS_DEFAULT_64
2227 bool
2228
2229 config NR_CPUS
2230 int "Maximum number of CPUs (2-64)"
2231 range 1 64 if NR_CPUS_DEFAULT_1
2232 depends on SMP
2233 default "1" if NR_CPUS_DEFAULT_1
2234 default "2" if NR_CPUS_DEFAULT_2
2235 default "4" if NR_CPUS_DEFAULT_4
2236 default "8" if NR_CPUS_DEFAULT_8
2237 default "16" if NR_CPUS_DEFAULT_16
2238 default "32" if NR_CPUS_DEFAULT_32
2239 default "64" if NR_CPUS_DEFAULT_64
2240 help
2241 This allows you to specify the maximum number of CPUs which this
2242 kernel will support. The maximum supported value is 32 for 32-bit
2243 kernel and 64 for 64-bit kernels; the minimum value which makes
2244 sense is 1 for Qemu (useful only for kernel debugging purposes)
2245 and 2 for all others.
2246
2247 This is purely to save memory - each supported CPU adds
2248 approximately eight kilobytes to the kernel image. For best
2249 performance should round up your number of processors to the next
2250 power of two.
2251
2252 config MIPS_PERF_SHARED_TC_COUNTERS
2253 bool
2254
2255 #
2256 # Timer Interrupt Frequency Configuration
2257 #
2258
2259 choice
2260 prompt "Timer frequency"
2261 default HZ_250
2262 help
2263 Allows the configuration of the timer frequency.
2264
2265 config HZ_48
2266 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2267
2268 config HZ_100
2269 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2270
2271 config HZ_128
2272 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2273
2274 config HZ_250
2275 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2276
2277 config HZ_256
2278 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2279
2280 config HZ_1000
2281 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2282
2283 config HZ_1024
2284 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2285
2286 endchoice
2287
2288 config SYS_SUPPORTS_48HZ
2289 bool
2290
2291 config SYS_SUPPORTS_100HZ
2292 bool
2293
2294 config SYS_SUPPORTS_128HZ
2295 bool
2296
2297 config SYS_SUPPORTS_250HZ
2298 bool
2299
2300 config SYS_SUPPORTS_256HZ
2301 bool
2302
2303 config SYS_SUPPORTS_1000HZ
2304 bool
2305
2306 config SYS_SUPPORTS_1024HZ
2307 bool
2308
2309 config SYS_SUPPORTS_ARBIT_HZ
2310 bool
2311 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2312 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2313 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2314 !SYS_SUPPORTS_1024HZ
2315
2316 config HZ
2317 int
2318 default 48 if HZ_48
2319 default 100 if HZ_100
2320 default 128 if HZ_128
2321 default 250 if HZ_250
2322 default 256 if HZ_256
2323 default 1000 if HZ_1000
2324 default 1024 if HZ_1024
2325
2326 source "kernel/Kconfig.preempt"
2327
2328 config KEXEC
2329 bool "Kexec system call"
2330 help
2331 kexec is a system call that implements the ability to shutdown your
2332 current kernel, and to start another kernel. It is like a reboot
2333 but it is independent of the system firmware. And like a reboot
2334 you can start any kernel with it, not just Linux.
2335
2336 The name comes from the similarity to the exec system call.
2337
2338 It is an ongoing process to be certain the hardware in a machine
2339 is properly shutdown, so do not be surprised if this code does not
2340 initially work for you. It may help to enable device hotplugging
2341 support. As of this writing the exact hardware interface is
2342 strongly in flux, so no good recommendation can be made.
2343
2344 config CRASH_DUMP
2345 bool "Kernel crash dumps"
2346 help
2347 Generate crash dump after being started by kexec.
2348 This should be normally only set in special crash dump kernels
2349 which are loaded in the main kernel with kexec-tools into
2350 a specially reserved region and then later executed after
2351 a crash by kdump/kexec. The crash dump kernel must be compiled
2352 to a memory address not used by the main kernel or firmware using
2353 PHYSICAL_START.
2354
2355 config PHYSICAL_START
2356 hex "Physical address where the kernel is loaded"
2357 default "0xffffffff84000000" if 64BIT
2358 default "0x84000000" if 32BIT
2359 depends on CRASH_DUMP
2360 help
2361 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2362 If you plan to use kernel for capturing the crash dump change
2363 this value to start of the reserved region (the "X" value as
2364 specified in the "crashkernel=YM@XM" command line boot parameter
2365 passed to the panic-ed kernel).
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 config MIPS_EXTERNAL_TIMER
2568 bool
2569
2570 if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
2571 menu "CPU Power Management"
2572 source "drivers/cpufreq/Kconfig"
2573 endmenu
2574 endif
2575
2576 source "net/Kconfig"
2577
2578 source "drivers/Kconfig"
2579
2580 source "drivers/firmware/Kconfig"
2581
2582 source "fs/Kconfig"
2583
2584 source "arch/mips/Kconfig.debug"
2585
2586 source "security/Kconfig"
2587
2588 source "crypto/Kconfig"
2589
2590 source "lib/Kconfig"
2591
2592 source "arch/mips/kvm/Kconfig"