4 # Horrible source of confusion. Die, die, die ...
7 mainmenu "Linux/MIPS Kernel Configuration"
9 menu "Machine selection"
19 bool "4G Systems MTX-1 board"
20 select DMA_NONCOHERENT
22 select RESOURCES_64BIT if PCI
24 select SYS_HAS_CPU_MIPS32_R1
25 select SYS_SUPPORTS_LITTLE_ENDIAN
28 bool "AMD Alchemy Bosporus board"
30 select DMA_NONCOHERENT
31 select SYS_HAS_CPU_MIPS32_R1
32 select SYS_SUPPORTS_LITTLE_ENDIAN
35 bool "AMD Alchemy PB1000 board"
37 select DMA_NONCOHERENT
39 select RESOURCES_64BIT if PCI
41 select SYS_HAS_CPU_MIPS32_R1
42 select SYS_SUPPORTS_LITTLE_ENDIAN
45 bool "AMD Alchemy PB1100 board"
47 select DMA_NONCOHERENT
49 select RESOURCES_64BIT if PCI
51 select SYS_HAS_CPU_MIPS32_R1
52 select SYS_SUPPORTS_LITTLE_ENDIAN
55 bool "AMD Alchemy PB1500 board"
57 select DMA_NONCOHERENT
59 select RESOURCES_64BIT if PCI
60 select SYS_HAS_CPU_MIPS32_R1
61 select SYS_SUPPORTS_LITTLE_ENDIAN
64 bool "AMD Alchemy PB1550 board"
66 select DMA_NONCOHERENT
68 select MIPS_DISABLE_OBSOLETE_IDE
69 select RESOURCES_64BIT if PCI
70 select SYS_HAS_CPU_MIPS32_R1
71 select SYS_SUPPORTS_LITTLE_ENDIAN
74 bool "AMD Alchemy PB1200 board"
76 select DMA_NONCOHERENT
77 select MIPS_DISABLE_OBSOLETE_IDE
78 select RESOURCES_64BIT if PCI
79 select SYS_HAS_CPU_MIPS32_R1
80 select SYS_SUPPORTS_LITTLE_ENDIAN
83 bool "AMD Alchemy DB1000 board"
85 select DMA_NONCOHERENT
87 select RESOURCES_64BIT if PCI
88 select SYS_HAS_CPU_MIPS32_R1
89 select SYS_SUPPORTS_LITTLE_ENDIAN
92 bool "AMD Alchemy DB1100 board"
94 select DMA_NONCOHERENT
95 select SYS_HAS_CPU_MIPS32_R1
96 select SYS_SUPPORTS_LITTLE_ENDIAN
99 bool "AMD Alchemy DB1500 board"
101 select DMA_NONCOHERENT
103 select MIPS_DISABLE_OBSOLETE_IDE
104 select RESOURCES_64BIT if PCI
105 select SYS_HAS_CPU_MIPS32_R1
106 select SYS_SUPPORTS_BIG_ENDIAN
107 select SYS_SUPPORTS_LITTLE_ENDIAN
110 bool "AMD Alchemy DB1550 board"
113 select DMA_NONCOHERENT
114 select MIPS_DISABLE_OBSOLETE_IDE
115 select RESOURCES_64BIT if PCI
116 select SYS_HAS_CPU_MIPS32_R1
117 select SYS_SUPPORTS_LITTLE_ENDIAN
120 bool "AMD Alchemy DB1200 board"
123 select MIPS_DISABLE_OBSOLETE_IDE
124 select SYS_HAS_CPU_MIPS32_R1
125 select SYS_SUPPORTS_LITTLE_ENDIAN
128 bool "AMD Alchemy Mirage board"
129 select DMA_NONCOHERENT
131 select SYS_HAS_CPU_MIPS32_R1
132 select SYS_SUPPORTS_LITTLE_ENDIAN
135 bool "Basler eXcite smart camera"
142 select SYS_HAS_CPU_RM9000
143 select SYS_SUPPORTS_32BIT_KERNEL
144 select SYS_SUPPORTS_64BIT_KERNEL
145 select SYS_SUPPORTS_BIG_ENDIAN
146 select SYS_SUPPORTS_KGDB
148 The eXcite is a smart camera platform manufactured by
149 Basler Vision Technologies AG.
151 config BASLER_EXCITE_PROTOTYPE
152 bool "Support for pre-release units"
153 depends on BASLER_EXCITE
156 Pre-series (prototype) units are different from later ones in
157 some ways. Select this option if you have one of these. Please
158 note that a kernel built with this option selected will not be
159 able to run on normal units.
163 select DMA_NONCOHERENT
167 select PCI_GT64XXX_PCI0
168 select SYS_HAS_CPU_NEVADA
169 select SYS_HAS_EARLY_PRINTK
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
179 select SYS_HAS_EARLY_PRINTK
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
209 select PCI_GT64XXX_PCI0
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
245 select SYS_HAS_EARLY_PRINTK
247 select PCI_GT64XXX_PCI0
249 select R5000_CPU_SCACHE
250 select SYS_HAS_CPU_R5000
251 select SYS_SUPPORTS_32BIT_KERNEL
252 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
253 select SYS_SUPPORTS_LITTLE_ENDIAN
254 select GENERIC_HARDIRQS_NO__DO_IRQ
257 bool "MIPS Atlas board"
259 select DMA_NONCOHERENT
260 select SYS_HAS_EARLY_PRINTK
263 select MIPS_BOARDS_GEN
265 select PCI_GT64XXX_PCI0
267 select RM7000_CPU_SCACHE
269 select SYS_HAS_CPU_MIPS32_R1
270 select SYS_HAS_CPU_MIPS32_R2
271 select SYS_HAS_CPU_MIPS64_R1
272 select SYS_HAS_CPU_NEVADA
273 select SYS_HAS_CPU_RM7000
274 select SYS_SUPPORTS_32BIT_KERNEL
275 select SYS_SUPPORTS_64BIT_KERNEL
276 select SYS_SUPPORTS_BIG_ENDIAN
277 select SYS_SUPPORTS_LITTLE_ENDIAN
278 select SYS_SUPPORTS_MULTITHREADING if EXPERIMENTAL
279 select SYS_SUPPORTS_SMARTMIPS
280 select GENERIC_HARDIRQS_NO__DO_IRQ
282 This enables support for the MIPS Technologies Atlas evaluation
286 bool "MIPS Malta board"
287 select ARCH_MAY_HAVE_PC_FDC
289 select HAVE_STD_PC_SERIAL_PORT
290 select DMA_NONCOHERENT
291 select GENERIC_ISA_DMA
295 select MIPS_BOARDS_GEN
297 select MIPS_CPU_SCACHE
298 select PCI_GT64XXX_PCI0
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_HAS_EARLY_PRINTK
307 select SYS_SUPPORTS_32BIT_KERNEL
308 select SYS_SUPPORTS_64BIT_KERNEL
309 select SYS_SUPPORTS_BIG_ENDIAN
310 select SYS_SUPPORTS_LITTLE_ENDIAN
311 select SYS_SUPPORTS_MULTITHREADING
312 select SYS_SUPPORTS_SMARTMIPS
314 This enables support for the MIPS Technologies Malta evaluation
318 bool "MIPS SEAD board (EXPERIMENTAL)"
319 depends on EXPERIMENTAL
321 select DMA_NONCOHERENT
322 select SYS_HAS_EARLY_PRINTK
323 select MIPS_BOARDS_GEN
324 select SYS_HAS_CPU_MIPS32_R1
325 select SYS_HAS_CPU_MIPS32_R2
326 select SYS_HAS_CPU_MIPS64_R1
327 select SYS_SUPPORTS_32BIT_KERNEL
328 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
329 select SYS_SUPPORTS_BIG_ENDIAN
330 select SYS_SUPPORTS_LITTLE_ENDIAN
331 select SYS_SUPPORTS_SMARTMIPS
333 This enables support for the MIPS Technologies SEAD evaluation
337 bool "Wind River PPMC board"
340 select DMA_NONCOHERENT
342 select PCI_GT64XXX_PCI0
344 select SYS_HAS_CPU_MIPS32_R1
345 select SYS_HAS_CPU_MIPS32_R2
346 select SYS_HAS_CPU_MIPS64_R1
347 select SYS_HAS_CPU_NEVADA
348 select SYS_HAS_CPU_RM7000
349 select SYS_SUPPORTS_32BIT_KERNEL
350 select SYS_SUPPORTS_64BIT_KERNEL
351 select SYS_SUPPORTS_BIG_ENDIAN
352 select SYS_SUPPORTS_LITTLE_ENDIAN
354 This enables support for the Wind River MIPS32 4KC PPMC evaluation
355 board, which is based on GT64120 bridge chip.
358 bool 'MIPS simulator (MIPSsim)'
359 select DMA_NONCOHERENT
360 select SYS_HAS_EARLY_PRINTK
362 select SYS_HAS_CPU_MIPS32_R1
363 select SYS_HAS_CPU_MIPS32_R2
364 select SYS_HAS_EARLY_PRINTK
365 select SYS_SUPPORTS_32BIT_KERNEL
366 select SYS_SUPPORTS_BIG_ENDIAN
367 select SYS_SUPPORTS_LITTLE_ENDIAN
369 This option enables support for MIPS Technologies MIPSsim software
372 config MOMENCO_JAGUAR_ATX
373 bool "Momentum Jaguar board"
375 select DMA_NONCOHERENT
382 select RM7000_CPU_SCACHE
384 select SYS_HAS_CPU_RM9000
385 select SYS_HAS_EARLY_PRINTK
386 select SYS_SUPPORTS_32BIT_KERNEL
387 select SYS_SUPPORTS_64BIT_KERNEL
388 select SYS_SUPPORTS_BIG_ENDIAN
389 select SYS_SUPPORTS_KGDB
391 The Jaguar ATX is a MIPS-based Single Board Computer (SBC) made by
392 Momentum Computer <http://www.momenco.com/>.
394 config MOMENCO_OCELOT
395 bool "Momentum Ocelot board"
396 select DMA_NONCOHERENT
400 select PCI_GT64XXX_PCI0
401 select RM7000_CPU_SCACHE
403 select SYS_HAS_CPU_RM7000
404 select SYS_SUPPORTS_32BIT_KERNEL
405 select SYS_SUPPORTS_64BIT_KERNEL
406 select SYS_SUPPORTS_BIG_ENDIAN
407 select SYS_SUPPORTS_KGDB
409 The Ocelot is a MIPS-based Single Board Computer (SBC) made by
410 Momentum Computer <http://www.momenco.com/>.
412 config MOMENCO_OCELOT_3
413 bool "Momentum Ocelot-3 board"
415 select DMA_NONCOHERENT
421 select RM7000_CPU_SCACHE
423 select SYS_HAS_CPU_RM9000
424 select SYS_SUPPORTS_32BIT_KERNEL
425 select SYS_SUPPORTS_64BIT_KERNEL
426 select SYS_SUPPORTS_BIG_ENDIAN
428 The Ocelot-3 is based off Discovery III System Controller and
429 PMC-Sierra Rm79000 core.
431 config MOMENCO_OCELOT_C
432 bool "Momentum Ocelot-C board"
433 select DMA_NONCOHERENT
438 select RM7000_CPU_SCACHE
440 select SYS_HAS_CPU_RM7000
441 select SYS_SUPPORTS_32BIT_KERNEL
442 select SYS_SUPPORTS_64BIT_KERNEL
443 select SYS_SUPPORTS_BIG_ENDIAN
444 select GENERIC_HARDIRQS_NO__DO_IRQ
446 The Ocelot is a MIPS-based Single Board Computer (SBC) made by
447 Momentum Computer <http://www.momenco.com/>.
450 bool "MyCable XXS1500 board"
451 select DMA_NONCOHERENT
453 select SYS_SUPPORTS_LITTLE_ENDIAN
456 bool "Philips PNX8550 based JBS board"
458 select SYS_SUPPORTS_LITTLE_ENDIAN
460 config PNX8550_STB810
461 bool "Support for Philips PNX8550 based STB810 board"
463 select SYS_SUPPORTS_LITTLE_ENDIAN
466 bool "NEC DDB Vrc-5477"
467 select DDB5XXX_COMMON
468 select DMA_NONCOHERENT
472 select SYS_HAS_CPU_R5432
473 select SYS_SUPPORTS_32BIT_KERNEL
474 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
475 select SYS_SUPPORTS_KGDB
476 select SYS_SUPPORTS_KGDB
477 select SYS_SUPPORTS_LITTLE_ENDIAN
479 This enables support for the R5432-based NEC DDB Vrc-5477,
480 or Rockhopper/SolutionGear boards with R5432/R5500 CPUs.
482 Features : kernel debugging, serial terminal, NFS root fs, on-board
483 ether port USB, AC97, PCI, etc.
486 bool "NEC VR4100 series based machines"
487 select SYS_HAS_CPU_VR41XX
488 select GENERIC_HARDIRQS_NO__DO_IRQ
491 bool "PMC-Sierra Yosemite eval board"
498 select SYS_HAS_CPU_RM9000
499 select SYS_HAS_EARLY_PRINTK
500 select SYS_SUPPORTS_32BIT_KERNEL
501 select SYS_SUPPORTS_64BIT_KERNEL
502 select SYS_SUPPORTS_BIG_ENDIAN
503 select SYS_SUPPORTS_HIGHMEM
504 select SYS_SUPPORTS_KGDB
505 select SYS_SUPPORTS_SMP
507 Yosemite is an evaluation board for the RM9000x2 processor
508 manufactured by PMC-Sierra.
513 select GENERIC_ISA_DMA
514 select HAVE_STD_PC_SERIAL_PORT
519 select SYS_HAS_CPU_MIPS32_R1
520 select SYS_SUPPORTS_32BIT_KERNEL
521 select SYS_SUPPORTS_BIG_ENDIAN
522 select SYS_SUPPORTS_LITTLE_ENDIAN
523 select ARCH_SPARSEMEM_ENABLE
524 select GENERIC_HARDIRQS_NO__DO_IRQ
525 select NR_CPUS_DEFAULT_1
526 select SYS_SUPPORTS_SMP
528 Qemu is a software emulator which among other architectures also
529 can simulate a MIPS32 4Kc system. This patch adds support for the
530 system architecture that currently is being simulated by Qemu. It
531 will eventually be removed again when Qemu has the capability to
532 simulate actual MIPS hardware platforms. More information on Qemu
533 can be found at http://www.linux-mips.org/wiki/Qemu.
536 bool "Support for NEC EMMA2RH Mark-eins"
537 select DMA_NONCOHERENT
541 select SYS_SUPPORTS_32BIT_KERNEL
542 select SYS_SUPPORTS_BIG_ENDIAN
543 select SYS_SUPPORTS_LITTLE_ENDIAN
544 select SYS_HAS_CPU_R5000
546 This enables support for the R5432-based NEC Mark-eins
547 boards with R5500 CPU.
550 bool "SGI IP22 (Indy/Indigo2)"
554 select DMA_NONCOHERENT
556 select IP22_CPU_SCACHE
558 select GENERIC_ISA_DMA_SUPPORT_BROKEN
560 select SYS_HAS_CPU_R4X00
561 select SYS_HAS_CPU_R5000
562 select SYS_HAS_EARLY_PRINTK
563 select SYS_SUPPORTS_32BIT_KERNEL
564 select SYS_SUPPORTS_64BIT_KERNEL
565 select SYS_SUPPORTS_BIG_ENDIAN
567 This are the SGI Indy, Challenge S and Indigo2, as well as certain
568 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
569 that runs on these, say Y here.
572 bool "SGI IP27 (Origin200/2000)"
577 select SYS_HAS_EARLY_PRINTK
579 select NR_CPUS_DEFAULT_64
581 select SYS_HAS_CPU_R10000
582 select SYS_SUPPORTS_64BIT_KERNEL
583 select SYS_SUPPORTS_BIG_ENDIAN
584 select SYS_SUPPORTS_KGDB
585 select SYS_SUPPORTS_NUMA
586 select SYS_SUPPORTS_SMP
587 select GENERIC_HARDIRQS_NO__DO_IRQ
589 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
590 workstations. To compile a Linux kernel that runs on these, say Y
594 bool "SGI IP32 (O2) (EXPERIMENTAL)"
595 depends on EXPERIMENTAL
599 select DMA_NONCOHERENT
601 select R5000_CPU_SCACHE
602 select RM7000_CPU_SCACHE
603 select SYS_HAS_CPU_R5000
604 select SYS_HAS_CPU_R10000 if BROKEN
605 select SYS_HAS_CPU_RM7000
606 select SYS_HAS_CPU_NEVADA
607 select SYS_SUPPORTS_64BIT_KERNEL
608 select SYS_SUPPORTS_BIG_ENDIAN
610 If you want this kernel to run on SGI O2 workstation, say Y here.
613 bool "Sibyte BCM91480B-BigSur"
616 select NR_CPUS_DEFAULT_4
618 select SIBYTE_BCM1x80
620 select SYS_HAS_CPU_SB1
621 select SYS_SUPPORTS_BIG_ENDIAN
622 select SYS_SUPPORTS_LITTLE_ENDIAN
625 bool "Sibyte BCM91250A-SWARM"
628 select NR_CPUS_DEFAULT_2
631 select SYS_HAS_CPU_SB1
632 select SYS_SUPPORTS_BIG_ENDIAN
633 select SYS_SUPPORTS_HIGHMEM
634 select SYS_SUPPORTS_KGDB
635 select SYS_SUPPORTS_LITTLE_ENDIAN
637 config SIBYTE_SENTOSA
638 bool "Sibyte BCM91250E-Sentosa"
639 depends on EXPERIMENTAL
642 select NR_CPUS_DEFAULT_2
645 select SYS_HAS_CPU_SB1
646 select SYS_SUPPORTS_BIG_ENDIAN
647 select SYS_SUPPORTS_LITTLE_ENDIAN
650 bool "Sibyte BCM91125E-Rhone"
651 depends on EXPERIMENTAL
654 select SIBYTE_BCM1125H
656 select SYS_HAS_CPU_SB1
657 select SYS_SUPPORTS_BIG_ENDIAN
658 select SYS_SUPPORTS_LITTLE_ENDIAN
661 bool "Sibyte BCM91120x-Carmel"
662 depends on EXPERIMENTAL
665 select SIBYTE_BCM1120
667 select SYS_HAS_CPU_SB1
668 select SYS_SUPPORTS_BIG_ENDIAN
669 select SYS_SUPPORTS_LITTLE_ENDIAN
671 config SIBYTE_PTSWARM
672 bool "Sibyte BCM91250PT-PTSWARM"
673 depends on EXPERIMENTAL
676 select NR_CPUS_DEFAULT_2
679 select SYS_HAS_CPU_SB1
680 select SYS_SUPPORTS_BIG_ENDIAN
681 select SYS_SUPPORTS_HIGHMEM
682 select SYS_SUPPORTS_LITTLE_ENDIAN
684 config SIBYTE_LITTLESUR
685 bool "Sibyte BCM91250C2-LittleSur"
686 depends on EXPERIMENTAL
689 select NR_CPUS_DEFAULT_2
692 select SYS_HAS_CPU_SB1
693 select SYS_SUPPORTS_BIG_ENDIAN
694 select SYS_SUPPORTS_HIGHMEM
695 select SYS_SUPPORTS_LITTLE_ENDIAN
698 bool "Sibyte BCM91120C-CRhine"
699 depends on EXPERIMENTAL
702 select SIBYTE_BCM1120
704 select SYS_HAS_CPU_SB1
705 select SYS_SUPPORTS_BIG_ENDIAN
706 select SYS_SUPPORTS_LITTLE_ENDIAN
709 bool "Sibyte BCM91125C-CRhone"
710 depends on EXPERIMENTAL
713 select SIBYTE_BCM1125
715 select SYS_HAS_CPU_SB1
716 select SYS_SUPPORTS_BIG_ENDIAN
717 select SYS_SUPPORTS_HIGHMEM
718 select SYS_SUPPORTS_LITTLE_ENDIAN
721 bool "SNI RM200/300/400"
722 select ARC if CPU_LITTLE_ENDIAN
723 select ARC32 if CPU_LITTLE_ENDIAN
724 select ARCH_MAY_HAVE_PC_FDC
726 select DMA_NONCOHERENT
727 select GENERIC_ISA_DMA
734 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
735 select SYS_HAS_CPU_R4X00
736 select SYS_HAS_CPU_R5000
737 select SYS_HAS_CPU_R10000
738 select R5000_CPU_SCACHE
739 select SYS_HAS_EARLY_PRINTK
740 select SYS_SUPPORTS_32BIT_KERNEL
741 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
742 select SYS_SUPPORTS_BIG_ENDIAN
743 select SYS_SUPPORTS_HIGHMEM
744 select SYS_SUPPORTS_LITTLE_ENDIAN
746 The SNI RM200/300/400 are MIPS-based machines manufactured by
747 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
748 Technology and now in turn merged with Fujitsu. Say Y here to
749 support this machine type.
751 config TOSHIBA_JMR3927
752 bool "Toshiba JMR-TX3927 board"
753 select DMA_NONCOHERENT
757 select SYS_HAS_CPU_TX39XX
758 select SYS_SUPPORTS_32BIT_KERNEL
759 select SYS_SUPPORTS_LITTLE_ENDIAN
760 select SYS_SUPPORTS_BIG_ENDIAN
761 select TOSHIBA_BOARDS
762 select GENERIC_HARDIRQS_NO__DO_IRQ
764 config TOSHIBA_RBTX4927
765 bool "Toshiba TBTX49[23]7 board"
766 select DMA_NONCOHERENT
767 select HAS_TXX9_SERIAL
771 select SYS_HAS_CPU_TX49XX
772 select SYS_SUPPORTS_32BIT_KERNEL
773 select SYS_SUPPORTS_64BIT_KERNEL
774 select SYS_SUPPORTS_LITTLE_ENDIAN
775 select SYS_SUPPORTS_BIG_ENDIAN
776 select SYS_SUPPORTS_KGDB
777 select TOSHIBA_BOARDS
778 select GENERIC_HARDIRQS_NO__DO_IRQ
780 This Toshiba board is based on the TX4927 processor. Say Y here to
781 support this machine type
783 config TOSHIBA_RBTX4938
784 bool "Toshiba RBTX4938 board"
785 select HAVE_STD_PC_SERIAL_PORT
786 select DMA_NONCOHERENT
787 select GENERIC_ISA_DMA
788 select HAS_TXX9_SERIAL
792 select SYS_HAS_CPU_TX49XX
793 select SYS_SUPPORTS_32BIT_KERNEL
794 select SYS_SUPPORTS_LITTLE_ENDIAN
795 select SYS_SUPPORTS_BIG_ENDIAN
796 select SYS_SUPPORTS_KGDB
797 select TOSHIBA_BOARDS
798 select GENERIC_HARDIRQS_NO__DO_IRQ
800 This Toshiba board is based on the TX4938 processor. Say Y here to
801 support this machine type
805 source "arch/mips/ddb5xxx/Kconfig"
806 source "arch/mips/gt64120/ev64120/Kconfig"
807 source "arch/mips/jazz/Kconfig"
808 source "arch/mips/lasat/Kconfig"
809 source "arch/mips/momentum/Kconfig"
810 source "arch/mips/pmc-sierra/Kconfig"
811 source "arch/mips/sgi-ip27/Kconfig"
812 source "arch/mips/sibyte/Kconfig"
813 source "arch/mips/tx4927/Kconfig"
814 source "arch/mips/tx4938/Kconfig"
815 source "arch/mips/vr41xx/Kconfig"
816 source "arch/mips/philips/pnx8550/common/Kconfig"
820 config RWSEM_GENERIC_SPINLOCK
824 config RWSEM_XCHGADD_ALGORITHM
827 config ARCH_HAS_ILOG2_U32
831 config ARCH_HAS_ILOG2_U64
835 config GENERIC_FIND_NEXT_BIT
839 config GENERIC_HWEIGHT
843 config GENERIC_CALIBRATE_DELAY
851 config SCHED_NO_NO_OMIT_FRAME_POINTER
855 config GENERIC_HARDIRQS_NO__DO_IRQ
860 # Select some configuration options automatically based on user selections.
865 config ARCH_MAY_HAVE_PC_FDC
876 select DMA_NEED_PCI_MAP_STATE
878 config DMA_NONCOHERENT
880 select DMA_NEED_PCI_MAP_STATE
882 config DMA_NEED_PCI_MAP_STATE
886 bool "Early printk" if EMBEDDED && DEBUG_KERNEL
887 depends on SYS_HAS_EARLY_PRINTK
890 This option enables special console drivers which allow the kernel
891 to print messages very early in the bootup process.
893 This is useful for kernel debugging when your machine crashes very
894 early before the console code is initialized. For normal operation
895 it is not recommended because it looks on some machines ugly and
896 oesn't cooperate with an X server. You should normally N here,
897 unless you want to debug such a crash.
899 config SYS_HAS_EARLY_PRINTK
902 config GENERIC_ISA_DMA
912 select SYS_SUPPORTS_HIGHMEM
923 config MIPS_DISABLE_OBSOLETE_IDE
926 config GENERIC_ISA_DMA_SUPPORT_BROKEN
931 # Endianess selection. Sufficiently obscure so many users don't know what to
932 # answer,so we try hard to limit the available choices. Also the use of a
933 # choice statement should be more obvious to the user.
936 prompt "Endianess selection"
938 Some MIPS machines can be configured for either little or big endian
939 byte order. These modes require different kernels and a different
940 Linux distribution. In general there is one preferred byteorder for a
941 particular system but some systems are just as commonly used in the
942 one or the other endianness.
944 config CPU_BIG_ENDIAN
946 depends on SYS_SUPPORTS_BIG_ENDIAN
948 config CPU_LITTLE_ENDIAN
950 depends on SYS_SUPPORTS_LITTLE_ENDIAN
955 config SYS_SUPPORTS_APM_EMULATION
958 config SYS_SUPPORTS_BIG_ENDIAN
961 config SYS_SUPPORTS_LITTLE_ENDIAN
976 config DDB5XXX_COMMON
978 select SYS_SUPPORTS_KGDB
980 config MIPS_BOARDS_GEN
983 config PCI_GT64XXX_PCI0
988 select HAS_TXX9_SERIAL
1021 select SYS_HAS_CPU_MIPS32_R1
1022 select SYS_SUPPORTS_32BIT_KERNEL
1023 select SYS_SUPPORTS_APM_EMULATION
1024 select SYS_SUPPORTS_KGDB
1026 config SERIAL_RM9000
1035 select DMA_NONCOHERENT
1037 select SYS_HAS_CPU_MIPS32_R1
1038 select SYS_HAS_EARLY_PRINTK
1039 select SYS_SUPPORTS_32BIT_KERNEL
1040 select GENERIC_HARDIRQS_NO__DO_IRQ
1041 select SYS_SUPPORTS_KGDB
1043 config SWAP_IO_SPACE
1051 config SERIAL_RM9000
1061 # Unfortunately not all GT64120 systems run the chip at the same clock.
1062 # As the user for the clock rate and try to minimize the available options.
1065 prompt "Galileo Chip Clock"
1066 #default SYSCLK_83 if MIPS_EV64120
1067 depends on MIPS_EV64120 || MOMENCO_OCELOT
1068 default SYSCLK_83 if MIPS_EV64120
1069 default SYSCLK_100 if MOMENCO_OCELOT
1072 bool "75" if MIPS_EV64120
1075 bool "83.3" if MIPS_EV64120
1078 bool "100" if MIPS_EV64120 || MOMENCO_OCELOT
1088 config MIPS_L1_CACHE_SHIFT
1090 default "4" if MACH_DECSTATION || SNI_RM
1091 default "7" if SGI_IP27
1094 config HAVE_STD_PC_SERIAL_PORT
1098 bool "ARC console support"
1099 depends on SGI_IP22 || (SNI_RM && CPU_LITTLE_ENDIAN)
1103 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1108 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP32
1117 config TOSHIBA_BOARDS
1120 menu "CPU selection"
1126 config CPU_MIPS32_R1
1127 bool "MIPS32 Release 1"
1128 depends on SYS_HAS_CPU_MIPS32_R1
1130 select CPU_HAS_PREFETCH
1131 select CPU_SUPPORTS_32BIT_KERNEL
1132 select CPU_SUPPORTS_HIGHMEM
1134 Choose this option to build a kernel for release 1 or later of the
1135 MIPS32 architecture. Most modern embedded systems with a 32-bit
1136 MIPS processor are based on a MIPS32 processor. If you know the
1137 specific type of processor in your system, choose those that one
1138 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1139 Release 2 of the MIPS32 architecture is available since several
1140 years so chances are you even have a MIPS32 Release 2 processor
1141 in which case you should choose CPU_MIPS32_R2 instead for better
1144 config CPU_MIPS32_R2
1145 bool "MIPS32 Release 2"
1146 depends on SYS_HAS_CPU_MIPS32_R2
1148 select CPU_HAS_PREFETCH
1149 select CPU_SUPPORTS_32BIT_KERNEL
1150 select CPU_SUPPORTS_HIGHMEM
1152 Choose this option to build a kernel for release 2 or later of the
1153 MIPS32 architecture. Most modern embedded systems with a 32-bit
1154 MIPS processor are based on a MIPS32 processor. If you know the
1155 specific type of processor in your system, choose those that one
1156 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1158 config CPU_MIPS64_R1
1159 bool "MIPS64 Release 1"
1160 depends on SYS_HAS_CPU_MIPS64_R1
1162 select CPU_HAS_PREFETCH
1163 select CPU_SUPPORTS_32BIT_KERNEL
1164 select CPU_SUPPORTS_64BIT_KERNEL
1165 select CPU_SUPPORTS_HIGHMEM
1167 Choose this option to build a kernel for release 1 or later of the
1168 MIPS64 architecture. Many modern embedded systems with a 64-bit
1169 MIPS processor are based on a MIPS64 processor. If you know the
1170 specific type of processor in your system, choose those that one
1171 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1172 Release 2 of the MIPS64 architecture is available since several
1173 years so chances are you even have a MIPS64 Release 2 processor
1174 in which case you should choose CPU_MIPS64_R2 instead for better
1177 config CPU_MIPS64_R2
1178 bool "MIPS64 Release 2"
1179 depends on SYS_HAS_CPU_MIPS64_R2
1181 select CPU_HAS_PREFETCH
1182 select CPU_SUPPORTS_32BIT_KERNEL
1183 select CPU_SUPPORTS_64BIT_KERNEL
1184 select CPU_SUPPORTS_HIGHMEM
1186 Choose this option to build a kernel for release 2 or later of the
1187 MIPS64 architecture. Many modern embedded systems with a 64-bit
1188 MIPS processor are based on a MIPS64 processor. If you know the
1189 specific type of processor in your system, choose those that one
1190 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1194 depends on SYS_HAS_CPU_R3000
1196 select CPU_SUPPORTS_32BIT_KERNEL
1197 select CPU_SUPPORTS_HIGHMEM
1199 Please make sure to pick the right CPU type. Linux/MIPS is not
1200 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1201 *not* work on R4000 machines and vice versa. However, since most
1202 of the supported machines have an R4000 (or similar) CPU, R4x00
1203 might be a safe bet. If the resulting kernel does not work,
1204 try to recompile with R3000.
1208 depends on SYS_HAS_CPU_TX39XX
1209 select CPU_SUPPORTS_32BIT_KERNEL
1213 depends on SYS_HAS_CPU_VR41XX
1214 select CPU_SUPPORTS_32BIT_KERNEL
1215 select CPU_SUPPORTS_64BIT_KERNEL
1217 The options selects support for the NEC VR4100 series of processors.
1218 Only choose this option if you have one of these processors as a
1219 kernel built with this option will not run on any other type of
1220 processor or vice versa.
1224 depends on SYS_HAS_CPU_R4300
1226 select CPU_SUPPORTS_32BIT_KERNEL
1227 select CPU_SUPPORTS_64BIT_KERNEL
1229 MIPS Technologies R4300-series processors.
1233 depends on SYS_HAS_CPU_R4X00
1235 select CPU_SUPPORTS_32BIT_KERNEL
1236 select CPU_SUPPORTS_64BIT_KERNEL
1238 MIPS Technologies R4000-series processors other than 4300, including
1239 the R4000, R4400, R4600, and 4700.
1243 depends on SYS_HAS_CPU_TX49XX
1245 select CPU_HAS_PREFETCH
1246 select CPU_SUPPORTS_32BIT_KERNEL
1247 select CPU_SUPPORTS_64BIT_KERNEL
1251 depends on SYS_HAS_CPU_R5000
1253 select CPU_SUPPORTS_32BIT_KERNEL
1254 select CPU_SUPPORTS_64BIT_KERNEL
1256 MIPS Technologies R5000-series processors other than the Nevada.
1260 depends on SYS_HAS_CPU_R5432
1262 select CPU_SUPPORTS_32BIT_KERNEL
1263 select CPU_SUPPORTS_64BIT_KERNEL
1267 depends on EXPERIMENTAL
1269 depends on SYS_HAS_CPU_R6000
1270 select CPU_SUPPORTS_32BIT_KERNEL
1272 MIPS Technologies R6000 and R6000A series processors. Note these
1273 processors are extremely rare and the support for them is incomplete.
1277 depends on SYS_HAS_CPU_NEVADA
1279 select CPU_SUPPORTS_32BIT_KERNEL
1280 select CPU_SUPPORTS_64BIT_KERNEL
1282 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1286 depends on EXPERIMENTAL
1287 depends on SYS_HAS_CPU_R8000
1289 select CPU_HAS_PREFETCH
1290 select CPU_SUPPORTS_64BIT_KERNEL
1292 MIPS Technologies R8000 processors. Note these processors are
1293 uncommon and the support for them is incomplete.
1297 depends on SYS_HAS_CPU_R10000
1299 select CPU_HAS_PREFETCH
1300 select CPU_SUPPORTS_32BIT_KERNEL
1301 select CPU_SUPPORTS_64BIT_KERNEL
1302 select CPU_SUPPORTS_HIGHMEM
1304 MIPS Technologies R10000-series processors.
1308 depends on SYS_HAS_CPU_RM7000
1310 select CPU_HAS_PREFETCH
1311 select CPU_SUPPORTS_32BIT_KERNEL
1312 select CPU_SUPPORTS_64BIT_KERNEL
1313 select CPU_SUPPORTS_HIGHMEM
1317 depends on SYS_HAS_CPU_RM9000
1319 select CPU_HAS_PREFETCH
1320 select CPU_SUPPORTS_32BIT_KERNEL
1321 select CPU_SUPPORTS_64BIT_KERNEL
1322 select CPU_SUPPORTS_HIGHMEM
1323 select WEAK_ORDERING
1327 depends on SYS_HAS_CPU_SB1
1329 select CPU_SUPPORTS_32BIT_KERNEL
1330 select CPU_SUPPORTS_64BIT_KERNEL
1331 select CPU_SUPPORTS_HIGHMEM
1332 select WEAK_ORDERING
1336 config SYS_HAS_CPU_MIPS32_R1
1339 config SYS_HAS_CPU_MIPS32_R2
1342 config SYS_HAS_CPU_MIPS64_R1
1345 config SYS_HAS_CPU_MIPS64_R2
1348 config SYS_HAS_CPU_R3000
1351 config SYS_HAS_CPU_TX39XX
1354 config SYS_HAS_CPU_VR41XX
1357 config SYS_HAS_CPU_R4300
1360 config SYS_HAS_CPU_R4X00
1363 config SYS_HAS_CPU_TX49XX
1366 config SYS_HAS_CPU_R5000
1369 config SYS_HAS_CPU_R5432
1372 config SYS_HAS_CPU_R6000
1375 config SYS_HAS_CPU_NEVADA
1378 config SYS_HAS_CPU_R8000
1381 config SYS_HAS_CPU_R10000
1384 config SYS_HAS_CPU_RM7000
1387 config SYS_HAS_CPU_RM9000
1390 config SYS_HAS_CPU_SB1
1393 config WEAK_ORDERING
1398 # These two indicate any level of the MIPS32 and MIPS64 architecture
1402 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1406 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1409 # These two indicate the revision of the architecture, either Release 1 or Release 2
1413 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1417 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2
1419 config SYS_SUPPORTS_32BIT_KERNEL
1421 config SYS_SUPPORTS_64BIT_KERNEL
1423 config CPU_SUPPORTS_32BIT_KERNEL
1425 config CPU_SUPPORTS_64BIT_KERNEL
1432 prompt "Kernel code model"
1434 You should only select this option if you have a workload that
1435 actually benefits from 64-bit processing or if your machine has
1436 large memory. You will only be presented a single option in this
1437 menu if your system does not support both 32-bit and 64-bit kernels.
1440 bool "32-bit kernel"
1441 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1444 Select this option if you want to build a 32-bit kernel.
1446 bool "64-bit kernel"
1447 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1449 Select this option if you want to build a 64-bit kernel.
1454 prompt "Kernel page size"
1455 default PAGE_SIZE_4KB
1457 config PAGE_SIZE_4KB
1460 This option select the standard 4kB Linux page size. On some
1461 R3000-family processors this is the only available page size. Using
1462 4kB page size will minimize memory consumption and is therefore
1463 recommended for low memory systems.
1465 config PAGE_SIZE_8KB
1467 depends on EXPERIMENTAL && CPU_R8000
1469 Using 8kB page size will result in higher performance kernel at
1470 the price of higher memory consumption. This option is available
1471 only on the R8000 processor. Not that at the time of this writing
1472 this option is still high experimental; there are also issues with
1473 compatibility of user applications.
1475 config PAGE_SIZE_16KB
1477 depends on !CPU_R3000 && !CPU_TX39XX
1479 Using 16kB page size will result in higher performance kernel at
1480 the price of higher memory consumption. This option is available on
1481 all non-R3000 family processors. Note that you will need a suitable
1482 Linux distribution to support this.
1484 config PAGE_SIZE_64KB
1486 depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
1488 Using 64kB page size will result in higher performance kernel at
1489 the price of higher memory consumption. This option is available on
1490 all non-R3000 family processor. Not that at the time of this
1491 writing this option is still high experimental.
1498 config IP22_CPU_SCACHE
1503 # Support for a MIPS32 / MIPS64 style S-caches
1505 config MIPS_CPU_SCACHE
1509 config R5000_CPU_SCACHE
1513 config RM7000_CPU_SCACHE
1517 config SIBYTE_DMA_PAGEOPS
1518 bool "Use DMA to clear/copy pages"
1521 Instead of using the CPU to zero and copy pages, use a Data Mover
1522 channel. These DMA channels are otherwise unused by the standard
1523 SiByte Linux port. Seems to give a small performance benefit.
1525 config CPU_HAS_PREFETCH
1529 prompt "MIPS MT options"
1531 config MIPS_MT_DISABLED
1532 bool "Disable multithreading support."
1534 Use this option if your workload can't take advantage of
1535 MIPS hardware multithreading support. On systems that don't have
1536 the option of an MT-enabled processor this option will be the only
1537 option in this menu.
1540 bool "Use 1 TC on each available VPE for SMP"
1541 depends on SYS_SUPPORTS_MULTITHREADING
1542 select CPU_MIPSR2_IRQ_VI
1543 select CPU_MIPSR2_IRQ_EI
1544 select CPU_MIPSR2_SRS
1546 select NR_CPUS_DEFAULT_2
1548 select SYS_SUPPORTS_SMP
1550 This is a kernel model which is also known a VSMP or lately
1551 has been marketesed into SMVP.
1554 bool "SMTC: Use all TCs on all VPEs for SMP"
1555 depends on CPU_MIPS32_R2
1556 #depends on CPU_MIPS64_R2 # once there is hardware ...
1557 depends on SYS_SUPPORTS_MULTITHREADING
1558 select CPU_MIPSR2_IRQ_VI
1559 select CPU_MIPSR2_IRQ_EI
1560 select CPU_MIPSR2_SRS
1562 select NR_CPUS_DEFAULT_8
1564 select SYS_SUPPORTS_SMP
1566 This is a kernel model which is known a SMTC or lately has been
1567 marketesed into SMVP.
1569 config MIPS_VPE_LOADER
1570 bool "VPE loader support."
1571 depends on SYS_SUPPORTS_MULTITHREADING
1572 select CPU_MIPSR2_IRQ_VI
1573 select CPU_MIPSR2_IRQ_EI
1576 Includes a loader for loading an elf relocatable object
1577 onto another VPE and running it.
1584 config SYS_SUPPORTS_MULTITHREADING
1587 config MIPS_MT_FPAFF
1588 bool "Dynamic FPU affinity for FP-intensive threads"
1592 config MIPS_MT_SMTC_INSTANT_REPLAY
1593 bool "Low-latency Dispatch of Deferred SMTC IPIs"
1594 depends on MIPS_MT_SMTC && !PREEMPT
1597 SMTC pseudo-interrupts between TCs are deferred and queued
1598 if the target TC is interrupt-inhibited (IXMT). In the first
1599 SMTC prototypes, these queued IPIs were serviced on return
1600 to user mode, or on entry into the kernel idle loop. The
1601 INSTANT_REPLAY option dispatches them as part of local_irq_restore()
1602 processing, which adds runtime overhead (hence the option to turn
1603 it off), but ensures that IPIs are handled promptly even under
1604 heavy I/O interrupt load.
1606 config MIPS_VPE_LOADER_TOM
1607 bool "Load VPE program into memory hidden from linux"
1608 depends on MIPS_VPE_LOADER
1611 The loader can use memory that is present but has been hidden from
1612 Linux using the kernel command line option "mem=xxMB". It's up to
1613 you to ensure the amount you put in the option and the space your
1614 program requires is less or equal to the amount physically present.
1616 # this should possibly be in drivers/char, but it is rather cpu related. Hmmm
1617 config MIPS_VPE_APSP_API
1618 bool "Enable support for AP/SP API (RTLX)"
1619 depends on MIPS_VPE_LOADER
1622 config MIPS_APSP_KSPD
1624 depends on MIPS_VPE_APSP_API
1627 KSPD is a kernel daemon that accepts syscall requests from the SP
1628 side, actions them and returns the results. It also handles the
1629 "exit" syscall notifying other kernel modules the SP program is
1630 exiting. You probably want to say yes here.
1632 config SB1_PASS_1_WORKAROUNDS
1634 depends on CPU_SB1_PASS_1
1637 config SB1_PASS_2_WORKAROUNDS
1639 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
1642 config SB1_PASS_2_1_WORKAROUNDS
1644 depends on CPU_SB1 && CPU_SB1_PASS_2
1647 config 64BIT_PHYS_ADDR
1648 bool "Support for 64-bit physical address space"
1649 depends on (CPU_R4X00 || CPU_R5000 || CPU_RM7000 || CPU_RM9000 || CPU_R10000 || CPU_SB1 || CPU_MIPS32 || CPU_MIPS64) && 32BIT
1654 config CPU_HAS_SMARTMIPS
1655 depends on SYS_SUPPORTS_SMARTMIPS
1656 bool "Support for the SmartMIPS ASE"
1658 SmartMIPS is a extension of the MIPS32 architecture aimed at
1659 increased security at both hardware and software level for
1660 smartcards. Enabling this option will allow proper use of the
1661 SmartMIPS instructions by Linux applications. However a kernel with
1662 this option will not work on a MIPS core without SmartMIPS core. If
1663 you don't know you probably don't have SmartMIPS and should say N
1670 # Vectored interrupt mode is an R2 feature
1672 config CPU_MIPSR2_IRQ_VI
1676 # Extended interrupt mode is an R2 feature
1678 config CPU_MIPSR2_IRQ_EI
1682 # Shadow registers are an R2 feature
1684 config CPU_MIPSR2_SRS
1689 depends on !CPU_R3000
1693 # Use the generic interrupt handling code in kernel/irq/:
1695 config GENERIC_HARDIRQS
1699 config GENERIC_IRQ_PROBE
1707 # - Highmem only makes sense for the 32-bit kernel.
1708 # - The current highmem code will only work properly on physically indexed
1709 # caches such as R3000, SB1, R7000 or those that look like they're virtually
1710 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
1711 # moment we protect the user and offer the highmem option only on machines
1712 # where it's known to be safe. This will not offer highmem on a few systems
1713 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
1714 # indexed CPUs but we're playing safe.
1715 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
1716 # know they might have memory configurations that could make use of highmem
1720 bool "High Memory Support"
1721 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
1723 config CPU_SUPPORTS_HIGHMEM
1726 config SYS_SUPPORTS_HIGHMEM
1729 config SYS_SUPPORTS_SMARTMIPS
1732 config ARCH_FLATMEM_ENABLE
1736 config ARCH_DISCONTIGMEM_ENABLE
1738 default y if SGI_IP27
1740 Say Y to support efficient handling of discontiguous physical memory,
1741 for architectures which are either NUMA (Non-Uniform Memory Access)
1742 or have huge holes in the physical address space for other reasons.
1743 See <file:Documentation/vm/numa> for more.
1745 config ARCH_SPARSEMEM_ENABLE
1747 select SPARSEMEM_STATIC
1751 depends on SYS_SUPPORTS_NUMA
1753 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
1754 Access). This option improves performance on systems with more
1755 than two nodes; on two node systems it is generally better to
1756 leave it disabled; on single node systems disable this option
1759 config SYS_SUPPORTS_NUMA
1765 depends on NEED_MULTIPLE_NODES
1770 bool "Multi-Processing support"
1771 depends on SYS_SUPPORTS_SMP
1774 This enables support for systems with more than one CPU. If you have
1775 a system with only one CPU, like most personal computers, say N. If
1776 you have a system with more than one CPU, say Y.
1778 If you say N here, the kernel will run on single and multiprocessor
1779 machines, but will use only one CPU of a multiprocessor machine. If
1780 you say Y here, the kernel will run on many, but not all,
1781 singleprocessor machines. On a singleprocessor machine, the kernel
1782 will run faster if you say N here.
1784 People using multiprocessor machines who say Y here should also say
1785 Y to "Enhanced Real Time Clock Support", below.
1787 See also the <file:Documentation/smp.txt> and the SMP-HOWTO
1788 available at <http://www.tldp.org/docs.html#howto>.
1790 If you don't know what to do here, say N.
1792 config SYS_SUPPORTS_SMP
1795 config NR_CPUS_DEFAULT_1
1798 config NR_CPUS_DEFAULT_2
1801 config NR_CPUS_DEFAULT_4
1804 config NR_CPUS_DEFAULT_8
1807 config NR_CPUS_DEFAULT_16
1810 config NR_CPUS_DEFAULT_32
1813 config NR_CPUS_DEFAULT_64
1817 int "Maximum number of CPUs (2-64)"
1818 range 1 64 if NR_CPUS_DEFAULT_1
1820 default "1" if NR_CPUS_DEFAULT_1
1821 default "2" if NR_CPUS_DEFAULT_2
1822 default "4" if NR_CPUS_DEFAULT_4
1823 default "8" if NR_CPUS_DEFAULT_8
1824 default "16" if NR_CPUS_DEFAULT_16
1825 default "32" if NR_CPUS_DEFAULT_32
1826 default "64" if NR_CPUS_DEFAULT_64
1828 This allows you to specify the maximum number of CPUs which this
1829 kernel will support. The maximum supported value is 32 for 32-bit
1830 kernel and 64 for 64-bit kernels; the minimum value which makes
1831 sense is 1 for Qemu (useful only for kernel debugging purposes)
1832 and 2 for all others.
1834 This is purely to save memory - each supported CPU adds
1835 approximately eight kilobytes to the kernel image. For best
1836 performance should round up your number of processors to the next
1840 # Timer Interrupt Frequency Configuration
1844 prompt "Timer frequency"
1847 Allows the configuration of the timer frequency.
1850 bool "48 HZ" if SYS_SUPPORTS_48HZ
1853 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
1856 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
1859 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
1862 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
1865 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
1868 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
1872 config SYS_SUPPORTS_48HZ
1875 config SYS_SUPPORTS_100HZ
1878 config SYS_SUPPORTS_128HZ
1881 config SYS_SUPPORTS_250HZ
1884 config SYS_SUPPORTS_256HZ
1887 config SYS_SUPPORTS_1000HZ
1890 config SYS_SUPPORTS_1024HZ
1893 config SYS_SUPPORTS_ARBIT_HZ
1895 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
1896 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
1897 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
1898 !SYS_SUPPORTS_1024HZ
1903 default 100 if HZ_100
1904 default 128 if HZ_128
1905 default 250 if HZ_250
1906 default 256 if HZ_256
1907 default 1000 if HZ_1000
1908 default 1024 if HZ_1024
1910 source "kernel/Kconfig.preempt"
1912 config MIPS_INSANE_LARGE
1913 bool "Support for large 64-bit configurations"
1914 depends on CPU_R10000 && 64BIT
1916 MIPS R10000 does support a 44 bit / 16TB address space as opposed to
1917 previous 64-bit processors which only supported 40 bit / 1TB. If you
1918 need processes of more than 1TB virtual address space, say Y here.
1919 This will result in additional memory usage, so it is not
1920 recommended for normal users.
1923 bool "Kexec system call (EXPERIMENTAL)"
1924 depends on EXPERIMENTAL
1926 kexec is a system call that implements the ability to shutdown your
1927 current kernel, and to start another kernel. It is like a reboot
1928 but it is independent of the system firmware. And like a reboot
1929 you can start any kernel with it, not just Linux.
1931 The name comes from the similiarity to the exec system call.
1933 It is an ongoing process to be certain the hardware in a machine
1934 is properly shutdown, so do not be surprised if this code does not
1935 initially work for you. It may help to enable device hotplugging
1936 support. As of this writing the exact hardware interface is
1937 strongly in flux, so no good recommendation can be made.
1940 bool "Enable seccomp to safely compute untrusted bytecode"
1941 depends on PROC_FS && BROKEN
1944 This kernel feature is useful for number crunching applications
1945 that may need to compute untrusted bytecode during their
1946 execution. By using pipes or other transports made available to
1947 the process as file descriptors supporting the read/write
1948 syscalls, it's possible to isolate those applications in
1949 their own address space using seccomp. Once seccomp is
1950 enabled via /proc/<pid>/seccomp, it cannot be disabled
1951 and the task is only allowed to execute a few safe syscalls
1952 defined by each seccomp mode.
1954 If unsure, say Y. Only embedded should say N here.
1958 config RWSEM_GENERIC_SPINLOCK
1962 config LOCKDEP_SUPPORT
1966 config STACKTRACE_SUPPORT
1970 source "init/Kconfig"
1972 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
1980 bool "Support for PCI controller"
1981 depends on HW_HAS_PCI
1983 Find out whether you have a PCI motherboard. PCI is the name of a
1984 bus system, i.e. the way the CPU talks to the other stuff inside
1985 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
1988 The PCI-HOWTO, available from
1989 <http://www.tldp.org/docs.html#howto>, contains valuable
1990 information about which PCI hardware does work under Linux and which
1997 source "drivers/pci/Kconfig"
2000 # ISA support is now enabled via select. Too many systems still have the one
2001 # or other ISA chip on the board that users don't know about so don't expect
2002 # users to choose the right thing ...
2009 depends on HW_HAS_EISA
2011 select GENERIC_ISA_DMA
2013 The Extended Industry Standard Architecture (EISA) bus was
2014 developed as an open alternative to the IBM MicroChannel bus.
2016 The EISA bus provided some of the features of the IBM MicroChannel
2017 bus while maintaining backward compatibility with cards made for
2018 the older ISA bus. The EISA bus saw limited use between 1988 and
2019 1995 when it was made obsolete by the PCI bus.
2021 Say Y here if you are building a kernel for an EISA-based machine.
2025 source "drivers/eisa/Kconfig"
2028 bool "TURBOchannel support"
2029 depends on MACH_DECSTATION
2031 TurboChannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2032 processors. Documentation on writing device drivers for TurboChannel
2034 <http://www.cs.arizona.edu/computer.help/policy/DIGITAL_unix/AA-PS3HD-TET1_html/TITLE.html>.
2037 # bool "Access.Bus support"
2047 source "drivers/pcmcia/Kconfig"
2049 source "drivers/pci/hotplug/Kconfig"
2053 menu "Executable file formats"
2055 source "fs/Kconfig.binfmt"
2061 bool "Use 64-bit ELF format for building"
2064 A 64-bit kernel is usually built using the 64-bit ELF binary object
2065 format as it's one that allows arbitrary 64-bit constructs. For
2066 kernels that are loaded within the KSEG compatibility segments the
2067 32-bit ELF format can optionally be used resulting in a somewhat
2068 smaller binary, but this option is not explicitly supported by the
2069 toolchain and since binutils 2.14 it does not even work at all.
2071 Say Y to use the 64-bit format or N to use the 32-bit one.
2076 bool "Include IRIX binary compatibility"
2077 depends on CPU_BIG_ENDIAN && 32BIT && BROKEN
2079 config MIPS32_COMPAT
2080 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2083 Select this option if you want Linux/MIPS 32-bit binary
2084 compatibility. Since all software available for Linux/MIPS is
2085 currently 32-bit you should say Y here.
2089 depends on MIPS32_COMPAT
2092 config SYSVIPC_COMPAT
2094 depends on COMPAT && SYSVIPC
2098 bool "Kernel support for o32 binaries"
2099 depends on MIPS32_COMPAT
2101 Select this option if you want to run o32 binaries. These are pure
2102 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2103 existing binaries are in this format.
2108 bool "Kernel support for n32 binaries"
2109 depends on MIPS32_COMPAT
2111 Select this option if you want to run n32 binaries. These are
2112 64-bit binaries using 32-bit quantities for addressing and certain
2113 data that would normally be 64-bit. They are used in special
2120 default y if MIPS32_O32 || MIPS32_N32
2124 menu "Power management options"
2126 source "kernel/power/Kconfig"
2130 source "net/Kconfig"
2132 source "drivers/Kconfig"
2136 source "arch/mips/oprofile/Kconfig"
2138 source "arch/mips/Kconfig.debug"
2140 source "security/Kconfig"
2142 source "crypto/Kconfig"
2144 source "lib/Kconfig"