4 # Horrible source of confusion. Die, die, die ...
7 mainmenu "Linux/MIPS Kernel Configuration"
9 menu "Machine selection"
20 bool "4G Systems MTX-1 board"
21 select DMA_NONCOHERENT
23 select RESOURCES_64BIT if PCI
25 select SYS_HAS_CPU_MIPS32_R1
26 select SYS_SUPPORTS_LITTLE_ENDIAN
29 bool "AMD Alchemy Bosporus board"
31 select DMA_NONCOHERENT
32 select SYS_HAS_CPU_MIPS32_R1
33 select SYS_SUPPORTS_LITTLE_ENDIAN
36 bool "AMD Alchemy PB1000 board"
38 select DMA_NONCOHERENT
40 select RESOURCES_64BIT if PCI
42 select SYS_HAS_CPU_MIPS32_R1
43 select SYS_SUPPORTS_LITTLE_ENDIAN
46 bool "AMD Alchemy PB1100 board"
48 select DMA_NONCOHERENT
50 select RESOURCES_64BIT if PCI
52 select SYS_HAS_CPU_MIPS32_R1
53 select SYS_SUPPORTS_LITTLE_ENDIAN
56 bool "AMD Alchemy PB1500 board"
58 select DMA_NONCOHERENT
60 select RESOURCES_64BIT if PCI
61 select SYS_HAS_CPU_MIPS32_R1
62 select SYS_SUPPORTS_LITTLE_ENDIAN
65 bool "AMD Alchemy PB1550 board"
67 select DMA_NONCOHERENT
69 select MIPS_DISABLE_OBSOLETE_IDE
70 select RESOURCES_64BIT if PCI
71 select SYS_HAS_CPU_MIPS32_R1
72 select SYS_SUPPORTS_LITTLE_ENDIAN
75 bool "AMD Alchemy PB1200 board"
77 select DMA_NONCOHERENT
78 select MIPS_DISABLE_OBSOLETE_IDE
79 select RESOURCES_64BIT if PCI
80 select SYS_HAS_CPU_MIPS32_R1
81 select SYS_SUPPORTS_LITTLE_ENDIAN
84 bool "AMD Alchemy DB1000 board"
86 select DMA_NONCOHERENT
88 select RESOURCES_64BIT if PCI
89 select SYS_HAS_CPU_MIPS32_R1
90 select SYS_SUPPORTS_LITTLE_ENDIAN
93 bool "AMD Alchemy DB1100 board"
95 select DMA_NONCOHERENT
96 select SYS_HAS_CPU_MIPS32_R1
97 select SYS_SUPPORTS_LITTLE_ENDIAN
100 bool "AMD Alchemy DB1500 board"
102 select DMA_NONCOHERENT
104 select MIPS_DISABLE_OBSOLETE_IDE
105 select RESOURCES_64BIT if PCI
106 select SYS_HAS_CPU_MIPS32_R1
107 select SYS_SUPPORTS_BIG_ENDIAN
108 select SYS_SUPPORTS_LITTLE_ENDIAN
111 bool "AMD Alchemy DB1550 board"
114 select DMA_NONCOHERENT
115 select MIPS_DISABLE_OBSOLETE_IDE
116 select RESOURCES_64BIT if PCI
117 select SYS_HAS_CPU_MIPS32_R1
118 select SYS_SUPPORTS_LITTLE_ENDIAN
121 bool "AMD Alchemy DB1200 board"
124 select MIPS_DISABLE_OBSOLETE_IDE
125 select SYS_HAS_CPU_MIPS32_R1
126 select SYS_SUPPORTS_LITTLE_ENDIAN
129 bool "AMD Alchemy Mirage board"
130 select DMA_NONCOHERENT
132 select SYS_HAS_CPU_MIPS32_R1
133 select SYS_SUPPORTS_LITTLE_ENDIAN
136 bool "Basler eXcite smart camera"
143 select SYS_HAS_CPU_RM9000
144 select SYS_SUPPORTS_32BIT_KERNEL
145 select SYS_SUPPORTS_64BIT_KERNEL
146 select SYS_SUPPORTS_BIG_ENDIAN
147 select SYS_SUPPORTS_KGDB
149 The eXcite is a smart camera platform manufactured by
150 Basler Vision Technologies AG.
152 config BASLER_EXCITE_PROTOTYPE
153 bool "Support for pre-release units"
154 depends on BASLER_EXCITE
157 Pre-series (prototype) units are different from later ones in
158 some ways. Select this option if you have one of these. Please
159 note that a kernel built with this option selected will not be
160 able to run on normal units.
164 select DMA_NONCOHERENT
169 select SYS_HAS_CPU_NEVADA
170 select SYS_SUPPORTS_32BIT_KERNEL
171 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
172 select SYS_SUPPORTS_LITTLE_ENDIAN
173 select GENERIC_HARDIRQS_NO__DO_IRQ
175 config MACH_DECSTATION
178 select DMA_NONCOHERENT
181 select SYS_HAS_CPU_R3000
182 select SYS_HAS_CPU_R4X00
183 select SYS_SUPPORTS_32BIT_KERNEL
184 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
185 select SYS_SUPPORTS_LITTLE_ENDIAN
186 select SYS_SUPPORTS_128HZ
187 select SYS_SUPPORTS_256HZ
188 select SYS_SUPPORTS_1024HZ
190 This enables support for DEC's MIPS based workstations. For details
191 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
192 DECstation porting pages on <http://decstation.unix-ag.org/>.
194 If you have one of the following DECstation Models you definitely
195 want to choose R4xx0 for the CPU Type:
202 otherwise choose R3000.
205 bool "Galileo EV64120 Evaluation board (EXPERIMENTAL)"
206 depends on EXPERIMENTAL
207 select DMA_NONCOHERENT
210 select SYS_HAS_CPU_R5000
211 select SYS_SUPPORTS_32BIT_KERNEL
212 select SYS_SUPPORTS_64BIT_KERNEL
213 select SYS_SUPPORTS_BIG_ENDIAN
214 select SYS_SUPPORTS_KGDB
216 This is an evaluation board based on the Galileo GT-64120
217 single-chip system controller that contains a MIPS R5000 compatible
218 core running at 75/100MHz. Their website is located at
219 <http://www.marvell.com/>. Say Y here if you wish to build a
220 kernel for this platform.
223 bool "Jazz family of machines"
226 select ARCH_MAY_HAVE_PC_FDC
227 select GENERIC_ISA_DMA
231 select SYS_HAS_CPU_R4X00
232 select SYS_SUPPORTS_32BIT_KERNEL
233 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
234 select SYS_SUPPORTS_100HZ
235 select GENERIC_HARDIRQS_NO__DO_IRQ
237 This a family of machines based on the MIPS R4030 chipset which was
238 used by several vendors to build RISC/os and Windows NT workstations.
239 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millenium and
240 Olivetti M700-10 workstations.
243 bool "LASAT Networks platforms"
244 select DMA_NONCOHERENT
248 select R5000_CPU_SCACHE
249 select SYS_HAS_CPU_R5000
250 select SYS_SUPPORTS_32BIT_KERNEL
251 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
252 select SYS_SUPPORTS_LITTLE_ENDIAN
253 select GENERIC_HARDIRQS_NO__DO_IRQ
256 bool "MIPS Atlas board"
258 select DMA_NONCOHERENT
262 select MIPS_BOARDS_GEN
266 select RM7000_CPU_SCACHE
268 select SYS_HAS_CPU_MIPS32_R1
269 select SYS_HAS_CPU_MIPS32_R2
270 select SYS_HAS_CPU_MIPS64_R1
271 select SYS_HAS_CPU_NEVADA
272 select SYS_HAS_CPU_RM7000
273 select SYS_SUPPORTS_32BIT_KERNEL
274 select SYS_SUPPORTS_64BIT_KERNEL
275 select SYS_SUPPORTS_BIG_ENDIAN
276 select SYS_SUPPORTS_LITTLE_ENDIAN
277 select SYS_SUPPORTS_MULTITHREADING if EXPERIMENTAL
278 select SYS_SUPPORTS_SMARTMIPS
279 select GENERIC_HARDIRQS_NO__DO_IRQ
281 This enables support for the MIPS Technologies Atlas evaluation
285 bool "MIPS Malta board"
286 select ARCH_MAY_HAVE_PC_FDC
288 select HAVE_STD_PC_SERIAL_PORT
289 select DMA_NONCOHERENT
291 select GENERIC_ISA_DMA
295 select MIPS_BOARDS_GEN
297 select MIPS_CPU_SCACHE
301 select SYS_HAS_CPU_MIPS32_R1
302 select SYS_HAS_CPU_MIPS32_R2
303 select SYS_HAS_CPU_MIPS64_R1
304 select SYS_HAS_CPU_NEVADA
305 select SYS_HAS_CPU_RM7000
306 select SYS_SUPPORTS_32BIT_KERNEL
307 select SYS_SUPPORTS_64BIT_KERNEL
308 select SYS_SUPPORTS_BIG_ENDIAN
309 select SYS_SUPPORTS_LITTLE_ENDIAN
310 select SYS_SUPPORTS_MULTITHREADING
311 select SYS_SUPPORTS_SMARTMIPS
313 This enables support for the MIPS Technologies Malta evaluation
317 bool "MIPS SEAD board (EXPERIMENTAL)"
318 depends on EXPERIMENTAL
320 select DMA_NONCOHERENT
322 select MIPS_BOARDS_GEN
323 select SYS_HAS_CPU_MIPS32_R1
324 select SYS_HAS_CPU_MIPS32_R2
325 select SYS_HAS_CPU_MIPS64_R1
326 select SYS_SUPPORTS_32BIT_KERNEL
327 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
328 select SYS_SUPPORTS_BIG_ENDIAN
329 select SYS_SUPPORTS_LITTLE_ENDIAN
330 select SYS_SUPPORTS_SMARTMIPS
332 This enables support for the MIPS Technologies SEAD evaluation
336 bool "Wind River PPMC board"
339 select DMA_NONCOHERENT
343 select SYS_HAS_CPU_MIPS32_R1
344 select SYS_HAS_CPU_MIPS32_R2
345 select SYS_HAS_CPU_MIPS64_R1
346 select SYS_HAS_CPU_NEVADA
347 select SYS_HAS_CPU_RM7000
348 select SYS_SUPPORTS_32BIT_KERNEL
349 select SYS_SUPPORTS_64BIT_KERNEL
350 select SYS_SUPPORTS_BIG_ENDIAN
351 select SYS_SUPPORTS_LITTLE_ENDIAN
353 This enables support for the Wind River MIPS32 4KC PPMC evaluation
354 board, which is based on GT64120 bridge chip.
357 bool 'MIPS simulator (MIPSsim)'
358 select DMA_NONCOHERENT
361 select SYS_HAS_CPU_MIPS32_R1
362 select SYS_HAS_CPU_MIPS32_R2
363 select SYS_SUPPORTS_32BIT_KERNEL
364 select SYS_SUPPORTS_BIG_ENDIAN
365 select SYS_SUPPORTS_LITTLE_ENDIAN
367 This option enables support for MIPS Technologies MIPSsim software
370 config MOMENCO_JAGUAR_ATX
371 bool "Momentum Jaguar board"
373 select DMA_NONCOHERENT
380 select RM7000_CPU_SCACHE
382 select SYS_HAS_CPU_RM9000
383 select SYS_SUPPORTS_32BIT_KERNEL
384 select SYS_SUPPORTS_64BIT_KERNEL
385 select SYS_SUPPORTS_BIG_ENDIAN
386 select SYS_SUPPORTS_KGDB
388 The Jaguar ATX is a MIPS-based Single Board Computer (SBC) made by
389 Momentum Computer <http://www.momenco.com/>.
391 config MOMENCO_OCELOT
392 bool "Momentum Ocelot board"
393 select DMA_NONCOHERENT
398 select RM7000_CPU_SCACHE
400 select SYS_HAS_CPU_RM7000
401 select SYS_SUPPORTS_32BIT_KERNEL
402 select SYS_SUPPORTS_64BIT_KERNEL
403 select SYS_SUPPORTS_BIG_ENDIAN
404 select SYS_SUPPORTS_KGDB
406 The Ocelot is a MIPS-based Single Board Computer (SBC) made by
407 Momentum Computer <http://www.momenco.com/>.
409 config MOMENCO_OCELOT_3
410 bool "Momentum Ocelot-3 board"
412 select DMA_NONCOHERENT
418 select RM7000_CPU_SCACHE
420 select SYS_HAS_CPU_RM9000
421 select SYS_SUPPORTS_32BIT_KERNEL
422 select SYS_SUPPORTS_64BIT_KERNEL
423 select SYS_SUPPORTS_BIG_ENDIAN
425 The Ocelot-3 is based off Discovery III System Controller and
426 PMC-Sierra Rm79000 core.
428 config MOMENCO_OCELOT_C
429 bool "Momentum Ocelot-C board"
430 select DMA_NONCOHERENT
435 select RM7000_CPU_SCACHE
437 select SYS_HAS_CPU_RM7000
438 select SYS_SUPPORTS_32BIT_KERNEL
439 select SYS_SUPPORTS_64BIT_KERNEL
440 select SYS_SUPPORTS_BIG_ENDIAN
441 select GENERIC_HARDIRQS_NO__DO_IRQ
443 The Ocelot is a MIPS-based Single Board Computer (SBC) made by
444 Momentum Computer <http://www.momenco.com/>.
446 config MOMENCO_OCELOT_G
447 bool "Momentum Ocelot-G board"
448 select DMA_NONCOHERENT
453 select RM7000_CPU_SCACHE
455 select SYS_HAS_CPU_RM7000
456 select SYS_SUPPORTS_32BIT_KERNEL
457 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
458 select SYS_SUPPORTS_BIG_ENDIAN
460 The Ocelot is a MIPS-based Single Board Computer (SBC) made by
461 Momentum Computer <http://www.momenco.com/>.
464 bool "MyCable XXS1500 board"
465 select DMA_NONCOHERENT
467 select SYS_SUPPORTS_LITTLE_ENDIAN
470 bool "Philips PNX8550 based Viper2-PCI board"
472 select SYS_SUPPORTS_LITTLE_ENDIAN
475 bool "Philips PNX8550 based JBS board"
477 select SYS_SUPPORTS_LITTLE_ENDIAN
479 config PNX8550_STB810
480 bool "Support for Philips PNX8550 based STB810 board"
482 select SYS_SUPPORTS_LITTLE_ENDIAN
485 bool "NEC DDB Vrc-5477"
486 select DDB5XXX_COMMON
487 select DMA_NONCOHERENT
491 select SYS_HAS_CPU_R5432
492 select SYS_SUPPORTS_32BIT_KERNEL
493 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
494 select SYS_SUPPORTS_KGDB
495 select SYS_SUPPORTS_KGDB
496 select SYS_SUPPORTS_LITTLE_ENDIAN
498 This enables support for the R5432-based NEC DDB Vrc-5477,
499 or Rockhopper/SolutionGear boards with R5432/R5500 CPUs.
501 Features : kernel debugging, serial terminal, NFS root fs, on-board
502 ether port USB, AC97, PCI, etc.
505 bool "NEC VR41XX-based machines"
506 select SYS_HAS_CPU_VR41XX
507 select SYS_SUPPORTS_32BIT_KERNEL
508 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
509 select GENERIC_HARDIRQS_NO__DO_IRQ
512 bool "PMC-Sierra Yosemite eval board"
519 select SYS_HAS_CPU_RM9000
520 select SYS_SUPPORTS_32BIT_KERNEL
521 select SYS_SUPPORTS_64BIT_KERNEL
522 select SYS_SUPPORTS_BIG_ENDIAN
523 select SYS_SUPPORTS_HIGHMEM
524 select SYS_SUPPORTS_KGDB
525 select SYS_SUPPORTS_SMP
527 Yosemite is an evaluation board for the RM9000x2 processor
528 manufactured by PMC-Sierra.
533 select GENERIC_ISA_DMA
534 select HAVE_STD_PC_SERIAL_PORT
539 select SYS_HAS_CPU_MIPS32_R1
540 select SYS_SUPPORTS_32BIT_KERNEL
541 select SYS_SUPPORTS_BIG_ENDIAN
542 select SYS_SUPPORTS_LITTLE_ENDIAN
543 select ARCH_SPARSEMEM_ENABLE
544 select GENERIC_HARDIRQS_NO__DO_IRQ
546 Qemu is a software emulator which among other architectures also
547 can simulate a MIPS32 4Kc system. This patch adds support for the
548 system architecture that currently is being simulated by Qemu. It
549 will eventually be removed again when Qemu has the capability to
550 simulate actual MIPS hardware platforms. More information on Qemu
551 can be found at http://www.linux-mips.org/wiki/Qemu.
554 bool "Support for NEC EMMA2RH Mark-eins"
555 select DMA_NONCOHERENT
559 select SYS_SUPPORTS_32BIT_KERNEL
560 select SYS_SUPPORTS_BIG_ENDIAN
561 select SYS_SUPPORTS_LITTLE_ENDIAN
562 select SYS_HAS_CPU_R5000
564 This enables support for the R5432-based NEC Mark-eins
565 boards with R5500 CPU.
568 bool "SGI IP22 (Indy/Indigo2)"
572 select DMA_NONCOHERENT
574 select IP22_CPU_SCACHE
576 select GENERIC_ISA_DMA_SUPPORT_BROKEN
578 select SYS_HAS_CPU_R4X00
579 select SYS_HAS_CPU_R5000
580 select SYS_SUPPORTS_32BIT_KERNEL
581 select SYS_SUPPORTS_64BIT_KERNEL
582 select SYS_SUPPORTS_BIG_ENDIAN
584 This are the SGI Indy, Challenge S and Indigo2, as well as certain
585 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
586 that runs on these, say Y here.
589 bool "SGI IP27 (Origin200/2000)"
596 select NR_CPUS_DEFAULT_64
598 select SYS_HAS_CPU_R10000
599 select SYS_SUPPORTS_64BIT_KERNEL
600 select SYS_SUPPORTS_BIG_ENDIAN
601 select SYS_SUPPORTS_KGDB
602 select SYS_SUPPORTS_NUMA
603 select SYS_SUPPORTS_SMP
604 select GENERIC_HARDIRQS_NO__DO_IRQ
606 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
607 workstations. To compile a Linux kernel that runs on these, say Y
611 bool "SGI IP32 (O2) (EXPERIMENTAL)"
612 depends on EXPERIMENTAL
616 select DMA_NONCOHERENT
618 select R5000_CPU_SCACHE
619 select RM7000_CPU_SCACHE
620 select SYS_HAS_CPU_R5000
621 select SYS_HAS_CPU_R10000 if BROKEN
622 select SYS_HAS_CPU_RM7000
623 select SYS_HAS_CPU_NEVADA
624 select SYS_SUPPORTS_64BIT_KERNEL
625 select SYS_SUPPORTS_BIG_ENDIAN
627 If you want this kernel to run on SGI O2 workstation, say Y here.
630 bool "Sibyte BCM91480B-BigSur"
633 select NR_CPUS_DEFAULT_4
635 select SIBYTE_BCM1x80
637 select SYS_HAS_CPU_SB1
638 select SYS_SUPPORTS_BIG_ENDIAN
639 select SYS_SUPPORTS_LITTLE_ENDIAN
642 bool "Sibyte BCM91250A-SWARM"
645 select NR_CPUS_DEFAULT_2
648 select SYS_HAS_CPU_SB1
649 select SYS_SUPPORTS_BIG_ENDIAN
650 select SYS_SUPPORTS_HIGHMEM
651 select SYS_SUPPORTS_KGDB
652 select SYS_SUPPORTS_LITTLE_ENDIAN
654 config SIBYTE_SENTOSA
655 bool "Sibyte BCM91250E-Sentosa"
656 depends on EXPERIMENTAL
659 select NR_CPUS_DEFAULT_2
662 select SYS_HAS_CPU_SB1
663 select SYS_SUPPORTS_BIG_ENDIAN
664 select SYS_SUPPORTS_LITTLE_ENDIAN
667 bool "Sibyte BCM91125E-Rhone"
668 depends on EXPERIMENTAL
671 select SIBYTE_BCM1125H
673 select SYS_HAS_CPU_SB1
674 select SYS_SUPPORTS_BIG_ENDIAN
675 select SYS_SUPPORTS_LITTLE_ENDIAN
678 bool "Sibyte BCM91120x-Carmel"
679 depends on EXPERIMENTAL
682 select SIBYTE_BCM1120
684 select SYS_HAS_CPU_SB1
685 select SYS_SUPPORTS_BIG_ENDIAN
686 select SYS_SUPPORTS_LITTLE_ENDIAN
688 config SIBYTE_PTSWARM
689 bool "Sibyte BCM91250PT-PTSWARM"
690 depends on EXPERIMENTAL
693 select NR_CPUS_DEFAULT_2
696 select SYS_HAS_CPU_SB1
697 select SYS_SUPPORTS_BIG_ENDIAN
698 select SYS_SUPPORTS_HIGHMEM
699 select SYS_SUPPORTS_LITTLE_ENDIAN
701 config SIBYTE_LITTLESUR
702 bool "Sibyte BCM91250C2-LittleSur"
703 depends on EXPERIMENTAL
706 select NR_CPUS_DEFAULT_2
709 select SYS_HAS_CPU_SB1
710 select SYS_SUPPORTS_BIG_ENDIAN
711 select SYS_SUPPORTS_HIGHMEM
712 select SYS_SUPPORTS_LITTLE_ENDIAN
715 bool "Sibyte BCM91120C-CRhine"
716 depends on EXPERIMENTAL
719 select SIBYTE_BCM1120
721 select SYS_HAS_CPU_SB1
722 select SYS_SUPPORTS_BIG_ENDIAN
723 select SYS_SUPPORTS_LITTLE_ENDIAN
726 bool "Sibyte BCM91125C-CRhone"
727 depends on EXPERIMENTAL
730 select SIBYTE_BCM1125
732 select SYS_HAS_CPU_SB1
733 select SYS_SUPPORTS_BIG_ENDIAN
734 select SYS_SUPPORTS_HIGHMEM
735 select SYS_SUPPORTS_LITTLE_ENDIAN
738 bool "SNI RM200/300/400"
739 select ARC if CPU_LITTLE_ENDIAN
740 select ARC32 if CPU_LITTLE_ENDIAN
741 select ARCH_MAY_HAVE_PC_FDC
743 select DMA_NONCOHERENT
744 select GENERIC_ISA_DMA
751 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
752 select SYS_HAS_CPU_R4X00
753 select SYS_HAS_CPU_R5000
754 select SYS_HAS_CPU_R10000
755 select R5000_CPU_SCACHE
756 select SYS_SUPPORTS_32BIT_KERNEL
757 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
758 select SYS_SUPPORTS_BIG_ENDIAN
759 select SYS_SUPPORTS_HIGHMEM
760 select SYS_SUPPORTS_LITTLE_ENDIAN
762 The SNI RM200/300/400 are MIPS-based machines manufactured by
763 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
764 Technology and now in turn merged with Fujitsu. Say Y here to
765 support this machine type.
767 config TOSHIBA_JMR3927
768 bool "Toshiba JMR-TX3927 board"
769 select DMA_NONCOHERENT
773 select SYS_HAS_CPU_TX39XX
774 select SYS_SUPPORTS_32BIT_KERNEL
775 select SYS_SUPPORTS_LITTLE_ENDIAN
776 select SYS_SUPPORTS_BIG_ENDIAN
777 select TOSHIBA_BOARDS
779 config TOSHIBA_RBTX4927
780 bool "Toshiba TBTX49[23]7 board"
781 select DMA_NONCOHERENT
782 select HAS_TXX9_SERIAL
787 select SYS_HAS_CPU_TX49XX
788 select SYS_SUPPORTS_32BIT_KERNEL
789 select SYS_SUPPORTS_64BIT_KERNEL
790 select SYS_SUPPORTS_LITTLE_ENDIAN
791 select SYS_SUPPORTS_BIG_ENDIAN
792 select SYS_SUPPORTS_KGDB
793 select TOSHIBA_BOARDS
794 select GENERIC_HARDIRQS_NO__DO_IRQ
796 This Toshiba board is based on the TX4927 processor. Say Y here to
797 support this machine type
799 config TOSHIBA_RBTX4938
800 bool "Toshiba RBTX4938 board"
801 select HAVE_STD_PC_SERIAL_PORT
802 select DMA_NONCOHERENT
803 select GENERIC_ISA_DMA
804 select HAS_TXX9_SERIAL
809 select SYS_HAS_CPU_TX49XX
810 select SYS_SUPPORTS_32BIT_KERNEL
811 select SYS_SUPPORTS_LITTLE_ENDIAN
812 select SYS_SUPPORTS_BIG_ENDIAN
813 select SYS_SUPPORTS_KGDB
814 select TOSHIBA_BOARDS
815 select GENERIC_HARDIRQS_NO__DO_IRQ
817 This Toshiba board is based on the TX4938 processor. Say Y here to
818 support this machine type
822 source "arch/mips/ddb5xxx/Kconfig"
823 source "arch/mips/gt64120/ev64120/Kconfig"
824 source "arch/mips/jazz/Kconfig"
825 source "arch/mips/lasat/Kconfig"
826 source "arch/mips/momentum/Kconfig"
827 source "arch/mips/pmc-sierra/Kconfig"
828 source "arch/mips/sgi-ip27/Kconfig"
829 source "arch/mips/sibyte/Kconfig"
830 source "arch/mips/tx4927/Kconfig"
831 source "arch/mips/tx4938/Kconfig"
832 source "arch/mips/vr41xx/Kconfig"
833 source "arch/mips/philips/pnx8550/common/Kconfig"
834 source "arch/mips/cobalt/Kconfig"
838 config RWSEM_GENERIC_SPINLOCK
842 config RWSEM_XCHGADD_ALGORITHM
845 config ARCH_HAS_ILOG2_U32
849 config ARCH_HAS_ILOG2_U64
853 config GENERIC_FIND_NEXT_BIT
857 config GENERIC_HWEIGHT
861 config GENERIC_CALIBRATE_DELAY
869 config SCHED_NO_NO_OMIT_FRAME_POINTER
873 config GENERIC_HARDIRQS_NO__DO_IRQ
878 # Select some configuration options automatically based on user selections.
883 config ARCH_MAY_HAVE_PC_FDC
894 select DMA_NEED_PCI_MAP_STATE
896 config DMA_NONCOHERENT
898 select DMA_NEED_PCI_MAP_STATE
900 config DMA_NEED_PCI_MAP_STATE
906 config GENERIC_ISA_DMA
915 select SYS_SUPPORTS_HIGHMEM
926 config MIPS_DISABLE_OBSOLETE_IDE
929 config GENERIC_ISA_DMA_SUPPORT_BROKEN
933 # Endianess selection. Sufficiently obscure so many users don't know what to
934 # answer,so we try hard to limit the available choices. Also the use of a
935 # choice statement should be more obvious to the user.
938 prompt "Endianess selection"
940 Some MIPS machines can be configured for either little or big endian
941 byte order. These modes require different kernels and a different
942 Linux distribution. In general there is one preferred byteorder for a
943 particular system but some systems are just as commonly used in the
944 one or the other endianess.
946 config CPU_BIG_ENDIAN
948 depends on SYS_SUPPORTS_BIG_ENDIAN
950 config CPU_LITTLE_ENDIAN
952 depends on SYS_SUPPORTS_LITTLE_ENDIAN
957 config SYS_SUPPORTS_APM_EMULATION
960 config SYS_SUPPORTS_BIG_ENDIAN
963 config SYS_SUPPORTS_LITTLE_ENDIAN
978 config DDB5XXX_COMMON
980 select SYS_SUPPORTS_KGDB
982 config MIPS_BOARDS_GEN
993 select HAS_TXX9_SERIAL
1026 select SYS_HAS_CPU_MIPS32_R1
1027 select SYS_SUPPORTS_32BIT_KERNEL
1028 select SYS_SUPPORTS_APM_EMULATION
1029 select SYS_SUPPORTS_KGDB
1037 select DMA_NONCOHERENT
1039 select SYS_HAS_CPU_MIPS32_R1
1040 select SYS_SUPPORTS_32BIT_KERNEL
1041 select GENERIC_HARDIRQS_NO__DO_IRQ
1042 select SYS_SUPPORTS_KGDB
1044 config SWAP_IO_SPACE
1052 config SERIAL_RM9000
1062 # Unfortunately not all GT64120 systems run the chip at the same clock.
1063 # As the user for the clock rate and try to minimize the available options.
1066 prompt "Galileo Chip Clock"
1067 #default SYSCLK_83 if MIPS_EV64120
1068 depends on MIPS_EV64120 || MOMENCO_OCELOT || MOMENCO_OCELOT_G
1069 default SYSCLK_83 if MIPS_EV64120
1070 default SYSCLK_100 if MOMENCO_OCELOT || MOMENCO_OCELOT_G
1073 bool "75" if MIPS_EV64120
1076 bool "83.3" if MIPS_EV64120
1079 bool "100" if MIPS_EV64120 || MOMENCO_OCELOT || MOMENCO_OCELOT_G
1089 config MIPS_L1_CACHE_SHIFT
1091 default "4" if MACH_DECSTATION || SNI_RM
1092 default "7" if SGI_IP27
1095 config HAVE_STD_PC_SERIAL_PORT
1099 bool "ARC console support"
1100 depends on SGI_IP22 || SNI_RM
1104 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1109 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP32
1118 config TOSHIBA_BOARDS
1121 menu "CPU selection"
1127 config CPU_MIPS32_R1
1128 bool "MIPS32 Release 1"
1129 depends on SYS_HAS_CPU_MIPS32_R1
1131 select CPU_HAS_PREFETCH
1132 select CPU_SUPPORTS_32BIT_KERNEL
1133 select CPU_SUPPORTS_HIGHMEM
1135 Choose this option to build a kernel for release 1 or later of the
1136 MIPS32 architecture. Most modern embedded systems with a 32-bit
1137 MIPS processor are based on a MIPS32 processor. If you know the
1138 specific type of processor in your system, choose those that one
1139 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1140 Release 2 of the MIPS32 architecture is available since several
1141 years so chances are you even have a MIPS32 Release 2 processor
1142 in which case you should choose CPU_MIPS32_R2 instead for better
1145 config CPU_MIPS32_R2
1146 bool "MIPS32 Release 2"
1147 depends on SYS_HAS_CPU_MIPS32_R2
1149 select CPU_HAS_PREFETCH
1150 select CPU_SUPPORTS_32BIT_KERNEL
1151 select CPU_SUPPORTS_HIGHMEM
1153 Choose this option to build a kernel for release 2 or later of the
1154 MIPS32 architecture. Most modern embedded systems with a 32-bit
1155 MIPS processor are based on a MIPS32 processor. If you know the
1156 specific type of processor in your system, choose those that one
1157 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1159 config CPU_MIPS64_R1
1160 bool "MIPS64 Release 1"
1161 depends on SYS_HAS_CPU_MIPS64_R1
1163 select CPU_HAS_PREFETCH
1164 select CPU_SUPPORTS_32BIT_KERNEL
1165 select CPU_SUPPORTS_64BIT_KERNEL
1166 select CPU_SUPPORTS_HIGHMEM
1168 Choose this option to build a kernel for release 1 or later of the
1169 MIPS64 architecture. Many modern embedded systems with a 64-bit
1170 MIPS processor are based on a MIPS64 processor. If you know the
1171 specific type of processor in your system, choose those that one
1172 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1173 Release 2 of the MIPS64 architecture is available since several
1174 years so chances are you even have a MIPS64 Release 2 processor
1175 in which case you should choose CPU_MIPS64_R2 instead for better
1178 config CPU_MIPS64_R2
1179 bool "MIPS64 Release 2"
1180 depends on SYS_HAS_CPU_MIPS64_R2
1182 select CPU_HAS_PREFETCH
1183 select CPU_SUPPORTS_32BIT_KERNEL
1184 select CPU_SUPPORTS_64BIT_KERNEL
1185 select CPU_SUPPORTS_HIGHMEM
1187 Choose this option to build a kernel for release 2 or later of the
1188 MIPS64 architecture. Many modern embedded systems with a 64-bit
1189 MIPS processor are based on a MIPS64 processor. If you know the
1190 specific type of processor in your system, choose those that one
1191 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1195 depends on SYS_HAS_CPU_R3000
1197 select CPU_SUPPORTS_32BIT_KERNEL
1198 select CPU_SUPPORTS_HIGHMEM
1200 Please make sure to pick the right CPU type. Linux/MIPS is not
1201 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1202 *not* work on R4000 machines and vice versa. However, since most
1203 of the supported machines have an R4000 (or similar) CPU, R4x00
1204 might be a safe bet. If the resulting kernel does not work,
1205 try to recompile with R3000.
1209 depends on SYS_HAS_CPU_TX39XX
1210 select CPU_SUPPORTS_32BIT_KERNEL
1214 depends on SYS_HAS_CPU_VR41XX
1215 select CPU_SUPPORTS_32BIT_KERNEL
1216 select CPU_SUPPORTS_64BIT_KERNEL
1218 The options selects support for the NEC VR41xx series of processors.
1219 Only choose this option if you have one of these processors as a
1220 kernel built with this option will not run on any other type of
1221 processor or vice versa.
1225 depends on SYS_HAS_CPU_R4300
1227 select CPU_SUPPORTS_32BIT_KERNEL
1228 select CPU_SUPPORTS_64BIT_KERNEL
1230 MIPS Technologies R4300-series processors.
1234 depends on SYS_HAS_CPU_R4X00
1236 select CPU_SUPPORTS_32BIT_KERNEL
1237 select CPU_SUPPORTS_64BIT_KERNEL
1239 MIPS Technologies R4000-series processors other than 4300, including
1240 the R4000, R4400, R4600, and 4700.
1244 depends on SYS_HAS_CPU_TX49XX
1246 select CPU_HAS_PREFETCH
1247 select CPU_SUPPORTS_32BIT_KERNEL
1248 select CPU_SUPPORTS_64BIT_KERNEL
1252 depends on SYS_HAS_CPU_R5000
1254 select CPU_SUPPORTS_32BIT_KERNEL
1255 select CPU_SUPPORTS_64BIT_KERNEL
1257 MIPS Technologies R5000-series processors other than the Nevada.
1261 depends on SYS_HAS_CPU_R5432
1263 select CPU_SUPPORTS_32BIT_KERNEL
1264 select CPU_SUPPORTS_64BIT_KERNEL
1268 depends on EXPERIMENTAL
1270 depends on SYS_HAS_CPU_R6000
1271 select CPU_SUPPORTS_32BIT_KERNEL
1273 MIPS Technologies R6000 and R6000A series processors. Note these
1274 processors are extremely rare and the support for them is incomplete.
1278 depends on SYS_HAS_CPU_NEVADA
1280 select CPU_SUPPORTS_32BIT_KERNEL
1281 select CPU_SUPPORTS_64BIT_KERNEL
1283 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1287 depends on EXPERIMENTAL
1288 depends on SYS_HAS_CPU_R8000
1290 select CPU_HAS_PREFETCH
1291 select CPU_SUPPORTS_64BIT_KERNEL
1293 MIPS Technologies R8000 processors. Note these processors are
1294 uncommon and the support for them is incomplete.
1298 depends on SYS_HAS_CPU_R10000
1300 select CPU_HAS_PREFETCH
1301 select CPU_SUPPORTS_32BIT_KERNEL
1302 select CPU_SUPPORTS_64BIT_KERNEL
1303 select CPU_SUPPORTS_HIGHMEM
1305 MIPS Technologies R10000-series processors.
1309 depends on SYS_HAS_CPU_RM7000
1311 select CPU_HAS_PREFETCH
1312 select CPU_SUPPORTS_32BIT_KERNEL
1313 select CPU_SUPPORTS_64BIT_KERNEL
1314 select CPU_SUPPORTS_HIGHMEM
1318 depends on SYS_HAS_CPU_RM9000
1320 select CPU_HAS_PREFETCH
1321 select CPU_SUPPORTS_32BIT_KERNEL
1322 select CPU_SUPPORTS_64BIT_KERNEL
1323 select CPU_SUPPORTS_HIGHMEM
1324 select WEAK_ORDERING
1328 depends on SYS_HAS_CPU_SB1
1330 select CPU_SUPPORTS_32BIT_KERNEL
1331 select CPU_SUPPORTS_64BIT_KERNEL
1332 select CPU_SUPPORTS_HIGHMEM
1333 select WEAK_ORDERING
1337 config SYS_HAS_CPU_MIPS32_R1
1340 config SYS_HAS_CPU_MIPS32_R2
1343 config SYS_HAS_CPU_MIPS64_R1
1346 config SYS_HAS_CPU_MIPS64_R2
1349 config SYS_HAS_CPU_R3000
1352 config SYS_HAS_CPU_TX39XX
1355 config SYS_HAS_CPU_VR41XX
1358 config SYS_HAS_CPU_R4300
1361 config SYS_HAS_CPU_R4X00
1364 config SYS_HAS_CPU_TX49XX
1367 config SYS_HAS_CPU_R5000
1370 config SYS_HAS_CPU_R5432
1373 config SYS_HAS_CPU_R6000
1376 config SYS_HAS_CPU_NEVADA
1379 config SYS_HAS_CPU_R8000
1382 config SYS_HAS_CPU_R10000
1385 config SYS_HAS_CPU_RM7000
1388 config SYS_HAS_CPU_RM9000
1391 config SYS_HAS_CPU_SB1
1394 config WEAK_ORDERING
1399 # These two indicate any level of the MIPS32 and MIPS64 architecture
1403 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1407 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1410 # These two indicate the revision of the architecture, either Release 1 or Release 2
1414 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1418 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2
1420 config SYS_SUPPORTS_32BIT_KERNEL
1422 config SYS_SUPPORTS_64BIT_KERNEL
1424 config CPU_SUPPORTS_32BIT_KERNEL
1426 config CPU_SUPPORTS_64BIT_KERNEL
1433 prompt "Kernel code model"
1435 You should only select this option if you have a workload that
1436 actually benefits from 64-bit processing or if your machine has
1437 large memory. You will only be presented a single option in this
1438 menu if your system does not support both 32-bit and 64-bit kernels.
1441 bool "32-bit kernel"
1442 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1445 Select this option if you want to build a 32-bit kernel.
1447 bool "64-bit kernel"
1448 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1450 Select this option if you want to build a 64-bit kernel.
1455 prompt "Kernel page size"
1456 default PAGE_SIZE_4KB
1458 config PAGE_SIZE_4KB
1461 This option select the standard 4kB Linux page size. On some
1462 R3000-family processors this is the only available page size. Using
1463 4kB page size will minimize memory consumption and is therefore
1464 recommended for low memory systems.
1466 config PAGE_SIZE_8KB
1468 depends on EXPERIMENTAL && CPU_R8000
1470 Using 8kB page size will result in higher performance kernel at
1471 the price of higher memory consumption. This option is available
1472 only on the R8000 processor. Not that at the time of this writing
1473 this option is still high experimental; there are also issues with
1474 compatibility of user applications.
1476 config PAGE_SIZE_16KB
1478 depends on !CPU_R3000 && !CPU_TX39XX
1480 Using 16kB page size will result in higher performance kernel at
1481 the price of higher memory consumption. This option is available on
1482 all non-R3000 family processors. Note that you will need a suitable
1483 Linux distribution to support this.
1485 config PAGE_SIZE_64KB
1487 depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
1489 Using 64kB page size will result in higher performance kernel at
1490 the price of higher memory consumption. This option is available on
1491 all non-R3000 family processor. Not that at the time of this
1492 writing this option is still high experimental.
1499 config IP22_CPU_SCACHE
1504 # Support for a MIPS32 / MIPS64 style S-caches
1506 config MIPS_CPU_SCACHE
1510 config R5000_CPU_SCACHE
1514 config RM7000_CPU_SCACHE
1518 config SIBYTE_DMA_PAGEOPS
1519 bool "Use DMA to clear/copy pages"
1522 Instead of using the CPU to zero and copy pages, use a Data Mover
1523 channel. These DMA channels are otherwise unused by the standard
1524 SiByte Linux port. Seems to give a small performance benefit.
1526 config CPU_HAS_PREFETCH
1530 prompt "MIPS MT options"
1532 config MIPS_MT_DISABLED
1533 bool "Disable multithreading support."
1535 Use this option if your workload can't take advantage of
1536 MIPS hardware multithreading support. On systems that don't have
1537 the option of an MT-enabled processor this option will be the only
1538 option in this menu.
1541 bool "Use 1 TC on each available VPE for SMP"
1542 depends on SYS_SUPPORTS_MULTITHREADING
1543 select CPU_MIPSR2_IRQ_VI
1544 select CPU_MIPSR2_SRS
1547 select SYS_SUPPORTS_SMP
1549 This is a kernel model which is also known a VSMP or lately
1550 has been marketesed into SMVP.
1553 bool "SMTC: Use all TCs on all VPEs for SMP"
1554 depends on CPU_MIPS32_R2
1555 #depends on CPU_MIPS64_R2 # once there is hardware ...
1556 depends on SYS_SUPPORTS_MULTITHREADING
1557 select CPU_MIPSR2_IRQ_VI
1558 select CPU_MIPSR2_SRS
1560 select NR_CPUS_DEFAULT_2
1561 select NR_CPUS_DEFAULT_8
1563 select SYS_SUPPORTS_SMP
1565 This is a kernel model which is known a SMTC or lately has been
1566 marketesed into SMVP.
1568 config MIPS_VPE_LOADER
1569 bool "VPE loader support."
1570 depends on SYS_SUPPORTS_MULTITHREADING
1573 Includes a loader for loading an elf relocatable object
1574 onto another VPE and running it.
1581 config SYS_SUPPORTS_MULTITHREADING
1584 config MIPS_MT_FPAFF
1585 bool "Dynamic FPU affinity for FP-intensive threads"
1589 config MIPS_MT_SMTC_INSTANT_REPLAY
1590 bool "Low-latency Dispatch of Deferred SMTC IPIs"
1591 depends on MIPS_MT_SMTC
1594 SMTC pseudo-interrupts between TCs are deferred and queued
1595 if the target TC is interrupt-inhibited (IXMT). In the first
1596 SMTC prototypes, these queued IPIs were serviced on return
1597 to user mode, or on entry into the kernel idle loop. The
1598 INSTANT_REPLAY option dispatches them as part of local_irq_restore()
1599 processing, which adds runtime overhead (hence the option to turn
1600 it off), but ensures that IPIs are handled promptly even under
1601 heavy I/O interrupt load.
1603 config MIPS_VPE_LOADER_TOM
1604 bool "Load VPE program into memory hidden from linux"
1605 depends on MIPS_VPE_LOADER
1608 The loader can use memory that is present but has been hidden from
1609 Linux using the kernel command line option "mem=xxMB". It's up to
1610 you to ensure the amount you put in the option and the space your
1611 program requires is less or equal to the amount physically present.
1613 # this should possibly be in drivers/char, but it is rather cpu related. Hmmm
1614 config MIPS_VPE_APSP_API
1615 bool "Enable support for AP/SP API (RTLX)"
1616 depends on MIPS_VPE_LOADER
1619 config MIPS_APSP_KSPD
1621 depends on MIPS_VPE_APSP_API
1624 KSPD is a kernel daemon that accepts syscall requests from the SP
1625 side, actions them and returns the results. It also handles the
1626 "exit" syscall notifying other kernel modules the SP program is
1627 exiting. You probably want to say yes here.
1629 config SB1_PASS_1_WORKAROUNDS
1631 depends on CPU_SB1_PASS_1
1634 config SB1_PASS_2_WORKAROUNDS
1636 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
1639 config SB1_PASS_2_1_WORKAROUNDS
1641 depends on CPU_SB1 && CPU_SB1_PASS_2
1644 config 64BIT_PHYS_ADDR
1645 bool "Support for 64-bit physical address space"
1646 depends on (CPU_R4X00 || CPU_R5000 || CPU_RM7000 || CPU_RM9000 || CPU_R10000 || CPU_SB1 || CPU_MIPS32 || CPU_MIPS64) && 32BIT
1651 config CPU_HAS_SMARTMIPS
1652 depends on SYS_SUPPORTS_SMARTMIPS
1653 bool "Support for the SmartMIPS ASE"
1655 SmartMIPS is a extension of the MIPS32 architecture aimed at
1656 increased security at both hardware and software level for
1657 smartcards. Enabling this option will allow proper use of the
1658 SmartMIPS instructions by Linux applications. However a kernel with
1659 this option will not work on a MIPS core without SmartMIPS core. If
1660 you don't know you probably don't have SmartMIPS and should say N
1667 # Vectored interrupt mode is an R2 feature
1669 config CPU_MIPSR2_IRQ_VI
1673 # Extended interrupt mode is an R2 feature
1675 config CPU_MIPSR2_IRQ_EI
1679 # Shadow registers are an R2 feature
1681 config CPU_MIPSR2_SRS
1686 depends on !CPU_R3000
1690 # Use the generic interrupt handling code in kernel/irq/:
1692 config GENERIC_HARDIRQS
1696 config GENERIC_IRQ_PROBE
1704 # - Highmem only makes sense for the 32-bit kernel.
1705 # - The current highmem code will only work properly on physically indexed
1706 # caches such as R3000, SB1, R7000 or those that look like they're virtually
1707 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
1708 # moment we protect the user and offer the highmem option only on machines
1709 # where it's known to be safe. This will not offer highmem on a few systems
1710 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
1711 # indexed CPUs but we're playing safe.
1712 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
1713 # know they might have memory configurations that could make use of highmem
1717 bool "High Memory Support"
1718 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
1720 config CPU_SUPPORTS_HIGHMEM
1723 config SYS_SUPPORTS_HIGHMEM
1726 config SYS_SUPPORTS_SMARTMIPS
1729 config ARCH_FLATMEM_ENABLE
1733 config ARCH_DISCONTIGMEM_ENABLE
1735 default y if SGI_IP27
1737 Say Y to upport efficient handling of discontiguous physical memory,
1738 for architectures which are either NUMA (Non-Uniform Memory Access)
1739 or have huge holes in the physical address space for other reasons.
1740 See <file:Documentation/vm/numa> for more.
1742 config ARCH_SPARSEMEM_ENABLE
1744 select SPARSEMEM_STATIC
1748 depends on SYS_SUPPORTS_NUMA
1750 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
1751 Access). This option improves performance on systems with more
1752 than two nodes; on two node systems it is generally better to
1753 leave it disabled; on single node systems disable this option
1756 config SYS_SUPPORTS_NUMA
1762 depends on NEED_MULTIPLE_NODES
1767 bool "Multi-Processing support"
1768 depends on SYS_SUPPORTS_SMP
1771 This enables support for systems with more than one CPU. If you have
1772 a system with only one CPU, like most personal computers, say N. If
1773 you have a system with more than one CPU, say Y.
1775 If you say N here, the kernel will run on single and multiprocessor
1776 machines, but will use only one CPU of a multiprocessor machine. If
1777 you say Y here, the kernel will run on many, but not all,
1778 singleprocessor machines. On a singleprocessor machine, the kernel
1779 will run faster if you say N here.
1781 People using multiprocessor machines who say Y here should also say
1782 Y to "Enhanced Real Time Clock Support", below.
1784 See also the <file:Documentation/smp.txt> and the SMP-HOWTO
1785 available at <http://www.tldp.org/docs.html#howto>.
1787 If you don't know what to do here, say N.
1789 config SYS_SUPPORTS_SMP
1792 config NR_CPUS_DEFAULT_2
1795 config NR_CPUS_DEFAULT_4
1798 config NR_CPUS_DEFAULT_8
1801 config NR_CPUS_DEFAULT_16
1804 config NR_CPUS_DEFAULT_32
1807 config NR_CPUS_DEFAULT_64
1811 int "Maximum number of CPUs (2-64)"
1814 default "2" if NR_CPUS_DEFAULT_2
1815 default "4" if NR_CPUS_DEFAULT_4
1816 default "8" if NR_CPUS_DEFAULT_8
1817 default "16" if NR_CPUS_DEFAULT_16
1818 default "32" if NR_CPUS_DEFAULT_32
1819 default "64" if NR_CPUS_DEFAULT_64
1821 This allows you to specify the maximum number of CPUs which this
1822 kernel will support. The maximum supported value is 32 for 32-bit
1823 kernel and 64 for 64-bit kernels; the minimum value which makes
1826 This is purely to save memory - each supported CPU adds
1827 approximately eight kilobytes to the kernel image.
1830 # Timer Interrupt Frequency Configuration
1834 prompt "Timer frequency"
1837 Allows the configuration of the timer frequency.
1840 bool "48 HZ" if SYS_SUPPORTS_48HZ
1843 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
1846 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
1849 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
1852 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
1855 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
1858 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
1862 config SYS_SUPPORTS_48HZ
1865 config SYS_SUPPORTS_100HZ
1868 config SYS_SUPPORTS_128HZ
1871 config SYS_SUPPORTS_250HZ
1874 config SYS_SUPPORTS_256HZ
1877 config SYS_SUPPORTS_1000HZ
1880 config SYS_SUPPORTS_1024HZ
1883 config SYS_SUPPORTS_ARBIT_HZ
1885 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
1886 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
1887 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
1888 !SYS_SUPPORTS_1024HZ
1893 default 100 if HZ_100
1894 default 128 if HZ_128
1895 default 250 if HZ_250
1896 default 256 if HZ_256
1897 default 1000 if HZ_1000
1898 default 1024 if HZ_1024
1900 source "kernel/Kconfig.preempt"
1902 config MIPS_INSANE_LARGE
1903 bool "Support for large 64-bit configurations"
1904 depends on CPU_R10000 && 64BIT
1906 MIPS R10000 does support a 44 bit / 16TB address space as opposed to
1907 previous 64-bit processors which only supported 40 bit / 1TB. If you
1908 need processes of more than 1TB virtual address space, say Y here.
1909 This will result in additional memory usage, so it is not
1910 recommended for normal users.
1913 bool "Kexec system call (EXPERIMENTAL)"
1914 depends on EXPERIMENTAL
1916 kexec is a system call that implements the ability to shutdown your
1917 current kernel, and to start another kernel. It is like a reboot
1918 but it is indepedent of the system firmware. And like a reboot
1919 you can start any kernel with it, not just Linux.
1921 The name comes from the similiarity to the exec system call.
1923 It is an ongoing process to be certain the hardware in a machine
1924 is properly shutdown, so do not be surprised if this code does not
1925 initially work for you. It may help to enable device hotplugging
1926 support. As of this writing the exact hardware interface is
1927 strongly in flux, so no good recommendation can be made.
1930 bool "Enable seccomp to safely compute untrusted bytecode"
1931 depends on PROC_FS && BROKEN
1934 This kernel feature is useful for number crunching applications
1935 that may need to compute untrusted bytecode during their
1936 execution. By using pipes or other transports made available to
1937 the process as file descriptors supporting the read/write
1938 syscalls, it's possible to isolate those applications in
1939 their own address space using seccomp. Once seccomp is
1940 enabled via /proc/<pid>/seccomp, it cannot be disabled
1941 and the task is only allowed to execute a few safe syscalls
1942 defined by each seccomp mode.
1944 If unsure, say Y. Only embedded should say N here.
1948 config RWSEM_GENERIC_SPINLOCK
1952 config LOCKDEP_SUPPORT
1956 config STACKTRACE_SUPPORT
1960 source "init/Kconfig"
1962 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
1970 bool "Support for PCI controller"
1971 depends on HW_HAS_PCI
1973 Find out whether you have a PCI motherboard. PCI is the name of a
1974 bus system, i.e. the way the CPU talks to the other stuff inside
1975 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
1978 The PCI-HOWTO, available from
1979 <http://www.tldp.org/docs.html#howto>, contains valuable
1980 information about which PCI hardware does work under Linux and which
1987 source "drivers/pci/Kconfig"
1990 # ISA support is now enabled via select. Too many systems still have the one
1991 # or other ISA chip on the board that users don't know about so don't expect
1992 # users to choose the right thing ...
1999 depends on HW_HAS_EISA
2001 select GENERIC_ISA_DMA
2003 The Extended Industry Standard Architecture (EISA) bus was
2004 developed as an open alternative to the IBM MicroChannel bus.
2006 The EISA bus provided some of the features of the IBM MicroChannel
2007 bus while maintaining backward compatibility with cards made for
2008 the older ISA bus. The EISA bus saw limited use between 1988 and
2009 1995 when it was made obsolete by the PCI bus.
2011 Say Y here if you are building a kernel for an EISA-based machine.
2015 source "drivers/eisa/Kconfig"
2018 bool "TURBOchannel support"
2019 depends on MACH_DECSTATION
2021 TurboChannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2022 processors. Documentation on writing device drivers for TurboChannel
2024 <http://www.cs.arizona.edu/computer.help/policy/DIGITAL_unix/AA-PS3HD-TET1_html/TITLE.html>.
2027 # bool "Access.Bus support"
2037 source "drivers/pcmcia/Kconfig"
2039 source "drivers/pci/hotplug/Kconfig"
2043 menu "Executable file formats"
2045 source "fs/Kconfig.binfmt"
2051 bool "Use 64-bit ELF format for building"
2054 A 64-bit kernel is usually built using the 64-bit ELF binary object
2055 format as it's one that allows arbitrary 64-bit constructs. For
2056 kernels that are loaded within the KSEG compatibility segments the
2057 32-bit ELF format can optionally be used resulting in a somewhat
2058 smaller binary, but this option is not explicitly supported by the
2059 toolchain and since binutils 2.14 it does not even work at all.
2061 Say Y to use the 64-bit format or N to use the 32-bit one.
2066 bool "Include IRIX binary compatibility"
2067 depends on CPU_BIG_ENDIAN && 32BIT && BROKEN
2069 config MIPS32_COMPAT
2070 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2073 Select this option if you want Linux/MIPS 32-bit binary
2074 compatibility. Since all software available for Linux/MIPS is
2075 currently 32-bit you should say Y here.
2079 depends on MIPS32_COMPAT
2082 config SYSVIPC_COMPAT
2084 depends on COMPAT && SYSVIPC
2088 bool "Kernel support for o32 binaries"
2089 depends on MIPS32_COMPAT
2091 Select this option if you want to run o32 binaries. These are pure
2092 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2093 existing binaries are in this format.
2098 bool "Kernel support for n32 binaries"
2099 depends on MIPS32_COMPAT
2101 Select this option if you want to run n32 binaries. These are
2102 64-bit binaries using 32-bit quantities for addressing and certain
2103 data that would normally be 64-bit. They are used in special
2110 default y if MIPS32_O32 || MIPS32_N32
2114 menu "Power management options"
2116 source "kernel/power/Kconfig"
2120 source "net/Kconfig"
2122 source "drivers/Kconfig"
2126 source "arch/mips/oprofile/Kconfig"
2128 source "arch/mips/Kconfig.debug"
2130 source "security/Kconfig"
2132 source "crypto/Kconfig"
2134 source "lib/Kconfig"