4 # Horrible source of confusion. Die, die, die ...
7 mainmenu "Linux/MIPS Kernel Configuration"
9 menu "Machine selection"
19 bool "Alchemy processor based machines"
22 bool "Basler eXcite smart camera"
29 select SYS_HAS_CPU_RM9000
30 select SYS_SUPPORTS_32BIT_KERNEL
31 select SYS_SUPPORTS_64BIT_KERNEL
32 select SYS_SUPPORTS_BIG_ENDIAN
33 select SYS_SUPPORTS_KGDB
35 The eXcite is a smart camera platform manufactured by
36 Basler Vision Technologies AG.
38 config BASLER_EXCITE_PROTOTYPE
39 bool "Support for pre-release units"
40 depends on BASLER_EXCITE
43 Pre-series (prototype) units are different from later ones in
44 some ways. Select this option if you have one of these. Please
45 note that a kernel built with this option selected will not be
46 able to run on normal units.
50 select DMA_NONCOHERENT
54 select PCI_GT64XXX_PCI0
55 select SYS_HAS_CPU_NEVADA
56 select SYS_HAS_EARLY_PRINTK
57 select SYS_SUPPORTS_32BIT_KERNEL
58 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
59 select SYS_SUPPORTS_LITTLE_ENDIAN
60 select GENERIC_HARDIRQS_NO__DO_IRQ
62 config MACH_DECSTATION
65 select DMA_NONCOHERENT
67 select SYS_HAS_EARLY_PRINTK
69 select SYS_HAS_CPU_R3000
70 select SYS_HAS_CPU_R4X00
71 select SYS_SUPPORTS_32BIT_KERNEL
72 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
73 select SYS_SUPPORTS_LITTLE_ENDIAN
74 select SYS_SUPPORTS_128HZ
75 select SYS_SUPPORTS_256HZ
76 select SYS_SUPPORTS_1024HZ
78 This enables support for DEC's MIPS based workstations. For details
79 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
80 DECstation porting pages on <http://decstation.unix-ag.org/>.
82 If you have one of the following DECstation Models you definitely
83 want to choose R4xx0 for the CPU Type:
90 otherwise choose R3000.
93 bool "Galileo EV64120 Evaluation board (EXPERIMENTAL)"
94 depends on EXPERIMENTAL
95 select DMA_NONCOHERENT
97 select PCI_GT64XXX_PCI0
98 select SYS_HAS_CPU_R5000
99 select SYS_SUPPORTS_32BIT_KERNEL
100 select SYS_SUPPORTS_64BIT_KERNEL
101 select SYS_SUPPORTS_BIG_ENDIAN
102 select SYS_SUPPORTS_KGDB
104 This is an evaluation board based on the Galileo GT-64120
105 single-chip system controller that contains a MIPS R5000 compatible
106 core running at 75/100MHz. Their website is located at
107 <http://www.marvell.com/>. Say Y here if you wish to build a
108 kernel for this platform.
111 bool "Jazz family of machines"
114 select ARCH_MAY_HAVE_PC_FDC
115 select GENERIC_ISA_DMA
119 select SYS_HAS_CPU_R4X00
120 select SYS_SUPPORTS_32BIT_KERNEL
121 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
122 select SYS_SUPPORTS_100HZ
123 select GENERIC_HARDIRQS_NO__DO_IRQ
125 This a family of machines based on the MIPS R4030 chipset which was
126 used by several vendors to build RISC/os and Windows NT workstations.
127 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millenium and
128 Olivetti M700-10 workstations.
131 bool "LASAT Networks platforms"
132 select DMA_NONCOHERENT
133 select SYS_HAS_EARLY_PRINTK
135 select PCI_GT64XXX_PCI0
137 select R5000_CPU_SCACHE
138 select SYS_HAS_CPU_R5000
139 select SYS_SUPPORTS_32BIT_KERNEL
140 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
141 select SYS_SUPPORTS_LITTLE_ENDIAN
142 select GENERIC_HARDIRQS_NO__DO_IRQ
145 bool "MIPS Atlas board"
147 select DMA_NONCOHERENT
148 select SYS_HAS_EARLY_PRINTK
151 select MIPS_BOARDS_GEN
153 select PCI_GT64XXX_PCI0
155 select RM7000_CPU_SCACHE
157 select SYS_HAS_CPU_MIPS32_R1
158 select SYS_HAS_CPU_MIPS32_R2
159 select SYS_HAS_CPU_MIPS64_R1
160 select SYS_HAS_CPU_NEVADA
161 select SYS_HAS_CPU_RM7000
162 select SYS_SUPPORTS_32BIT_KERNEL
163 select SYS_SUPPORTS_64BIT_KERNEL
164 select SYS_SUPPORTS_BIG_ENDIAN
165 select SYS_SUPPORTS_LITTLE_ENDIAN
166 select SYS_SUPPORTS_MULTITHREADING if EXPERIMENTAL
167 select SYS_SUPPORTS_SMARTMIPS
168 select GENERIC_HARDIRQS_NO__DO_IRQ
170 This enables support for the MIPS Technologies Atlas evaluation
174 bool "MIPS Malta board"
175 select ARCH_MAY_HAVE_PC_FDC
177 select HAVE_STD_PC_SERIAL_PORT
178 select DMA_NONCOHERENT
179 select GENERIC_ISA_DMA
183 select MIPS_BOARDS_GEN
185 select MIPS_CPU_SCACHE
186 select PCI_GT64XXX_PCI0
189 select SYS_HAS_CPU_MIPS32_R1
190 select SYS_HAS_CPU_MIPS32_R2
191 select SYS_HAS_CPU_MIPS64_R1
192 select SYS_HAS_CPU_NEVADA
193 select SYS_HAS_CPU_RM7000
194 select SYS_HAS_EARLY_PRINTK
195 select SYS_SUPPORTS_32BIT_KERNEL
196 select SYS_SUPPORTS_64BIT_KERNEL
197 select SYS_SUPPORTS_BIG_ENDIAN
198 select SYS_SUPPORTS_LITTLE_ENDIAN
199 select SYS_SUPPORTS_MULTITHREADING
200 select SYS_SUPPORTS_SMARTMIPS
202 This enables support for the MIPS Technologies Malta evaluation
206 bool "MIPS SEAD board (EXPERIMENTAL)"
207 depends on EXPERIMENTAL
209 select DMA_NONCOHERENT
210 select SYS_HAS_EARLY_PRINTK
211 select MIPS_BOARDS_GEN
212 select SYS_HAS_CPU_MIPS32_R1
213 select SYS_HAS_CPU_MIPS32_R2
214 select SYS_HAS_CPU_MIPS64_R1
215 select SYS_SUPPORTS_32BIT_KERNEL
216 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
217 select SYS_SUPPORTS_BIG_ENDIAN
218 select SYS_SUPPORTS_LITTLE_ENDIAN
219 select SYS_SUPPORTS_SMARTMIPS
221 This enables support for the MIPS Technologies SEAD evaluation
225 bool "Wind River PPMC board"
228 select DMA_NONCOHERENT
230 select PCI_GT64XXX_PCI0
232 select SYS_HAS_CPU_MIPS32_R1
233 select SYS_HAS_CPU_MIPS32_R2
234 select SYS_HAS_CPU_MIPS64_R1
235 select SYS_HAS_CPU_NEVADA
236 select SYS_HAS_CPU_RM7000
237 select SYS_SUPPORTS_32BIT_KERNEL
238 select SYS_SUPPORTS_64BIT_KERNEL
239 select SYS_SUPPORTS_BIG_ENDIAN
240 select SYS_SUPPORTS_LITTLE_ENDIAN
242 This enables support for the Wind River MIPS32 4KC PPMC evaluation
243 board, which is based on GT64120 bridge chip.
246 bool 'MIPS simulator (MIPSsim)'
247 select DMA_NONCOHERENT
248 select SYS_HAS_EARLY_PRINTK
250 select SYS_HAS_CPU_MIPS32_R1
251 select SYS_HAS_CPU_MIPS32_R2
252 select SYS_HAS_EARLY_PRINTK
253 select SYS_SUPPORTS_32BIT_KERNEL
254 select SYS_SUPPORTS_BIG_ENDIAN
255 select SYS_SUPPORTS_MULTITHREADING
256 select SYS_SUPPORTS_LITTLE_ENDIAN
258 This option enables support for MIPS Technologies MIPSsim software
261 config MOMENCO_OCELOT
262 bool "Momentum Ocelot board"
263 select DMA_NONCOHERENT
267 select PCI_GT64XXX_PCI0
268 select RM7000_CPU_SCACHE
270 select SYS_HAS_CPU_RM7000
271 select SYS_SUPPORTS_32BIT_KERNEL
272 select SYS_SUPPORTS_64BIT_KERNEL
273 select SYS_SUPPORTS_BIG_ENDIAN
274 select SYS_SUPPORTS_KGDB
276 The Ocelot is a MIPS-based Single Board Computer (SBC) made by
277 Momentum Computer <http://www.momenco.com/>.
279 config MOMENCO_OCELOT_3
280 bool "Momentum Ocelot-3 board"
282 select DMA_NONCOHERENT
288 select RM7000_CPU_SCACHE
290 select SYS_HAS_CPU_RM9000
291 select SYS_SUPPORTS_32BIT_KERNEL
292 select SYS_SUPPORTS_64BIT_KERNEL
293 select SYS_SUPPORTS_BIG_ENDIAN
295 The Ocelot-3 is based off Discovery III System Controller and
296 PMC-Sierra Rm79000 core.
298 config MOMENCO_OCELOT_C
299 bool "Momentum Ocelot-C board"
300 select DMA_NONCOHERENT
305 select RM7000_CPU_SCACHE
307 select SYS_HAS_CPU_RM7000
308 select SYS_SUPPORTS_32BIT_KERNEL
309 select SYS_SUPPORTS_64BIT_KERNEL
310 select SYS_SUPPORTS_BIG_ENDIAN
311 select GENERIC_HARDIRQS_NO__DO_IRQ
313 The Ocelot is a MIPS-based Single Board Computer (SBC) made by
314 Momentum Computer <http://www.momenco.com/>.
317 bool "Philips PNX8550 based JBS board"
319 select SYS_SUPPORTS_LITTLE_ENDIAN
321 config PNX8550_STB810
322 bool "Philips PNX8550 based STB810 board"
324 select SYS_SUPPORTS_LITTLE_ENDIAN
327 bool "NEC DDB Vrc-5477"
328 select DDB5XXX_COMMON
329 select DMA_NONCOHERENT
333 select SYS_HAS_CPU_R5432
334 select SYS_SUPPORTS_32BIT_KERNEL
335 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
336 select SYS_SUPPORTS_KGDB
337 select SYS_SUPPORTS_KGDB
338 select SYS_SUPPORTS_LITTLE_ENDIAN
340 This enables support for the R5432-based NEC DDB Vrc-5477,
341 or Rockhopper/SolutionGear boards with R5432/R5500 CPUs.
343 Features : kernel debugging, serial terminal, NFS root fs, on-board
344 ether port USB, AC97, PCI, etc.
347 bool "NEC VR4100 series based machines"
348 select SYS_HAS_CPU_VR41XX
349 select GENERIC_HARDIRQS_NO__DO_IRQ
352 bool "PMC-Sierra Yosemite eval board"
359 select SYS_HAS_CPU_RM9000
360 select SYS_HAS_EARLY_PRINTK
361 select SYS_SUPPORTS_32BIT_KERNEL
362 select SYS_SUPPORTS_64BIT_KERNEL
363 select SYS_SUPPORTS_BIG_ENDIAN
364 select SYS_SUPPORTS_HIGHMEM
365 select SYS_SUPPORTS_KGDB
366 select SYS_SUPPORTS_SMP
368 Yosemite is an evaluation board for the RM9000x2 processor
369 manufactured by PMC-Sierra.
374 select GENERIC_ISA_DMA
375 select HAVE_STD_PC_SERIAL_PORT
380 select SYS_HAS_CPU_MIPS32_R1
381 select SYS_SUPPORTS_32BIT_KERNEL
382 select SYS_SUPPORTS_BIG_ENDIAN
383 select SYS_SUPPORTS_LITTLE_ENDIAN
384 select ARCH_SPARSEMEM_ENABLE
385 select GENERIC_HARDIRQS_NO__DO_IRQ
386 select NR_CPUS_DEFAULT_1
387 select SYS_SUPPORTS_SMP
389 Qemu is a software emulator which among other architectures also
390 can simulate a MIPS32 4Kc system. This patch adds support for the
391 system architecture that currently is being simulated by Qemu. It
392 will eventually be removed again when Qemu has the capability to
393 simulate actual MIPS hardware platforms. More information on Qemu
394 can be found at http://www.linux-mips.org/wiki/Qemu.
397 bool "NEC EMMA2RH Mark-eins"
398 select DMA_NONCOHERENT
402 select SYS_SUPPORTS_32BIT_KERNEL
403 select SYS_SUPPORTS_BIG_ENDIAN
404 select SYS_SUPPORTS_LITTLE_ENDIAN
405 select SYS_HAS_CPU_R5000
407 This enables support for the R5432-based NEC Mark-eins
408 boards with R5500 CPU.
411 bool "SGI IP22 (Indy/Indigo2)"
415 select DMA_NONCOHERENT
417 select IP22_CPU_SCACHE
419 select GENERIC_ISA_DMA_SUPPORT_BROKEN
421 select SYS_HAS_CPU_R4X00
422 select SYS_HAS_CPU_R5000
423 select SYS_HAS_EARLY_PRINTK
424 select SYS_SUPPORTS_32BIT_KERNEL
425 select SYS_SUPPORTS_64BIT_KERNEL
426 select SYS_SUPPORTS_BIG_ENDIAN
428 This are the SGI Indy, Challenge S and Indigo2, as well as certain
429 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
430 that runs on these, say Y here.
433 bool "SGI IP27 (Origin200/2000)"
438 select SYS_HAS_EARLY_PRINTK
440 select NR_CPUS_DEFAULT_64
442 select SYS_HAS_CPU_R10000
443 select SYS_SUPPORTS_64BIT_KERNEL
444 select SYS_SUPPORTS_BIG_ENDIAN
445 select SYS_SUPPORTS_KGDB
446 select SYS_SUPPORTS_NUMA
447 select SYS_SUPPORTS_SMP
448 select GENERIC_HARDIRQS_NO__DO_IRQ
450 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
451 workstations. To compile a Linux kernel that runs on these, say Y
455 bool "SGI IP32 (O2) (EXPERIMENTAL)"
456 depends on EXPERIMENTAL
460 select DMA_NONCOHERENT
462 select R5000_CPU_SCACHE
463 select RM7000_CPU_SCACHE
464 select SYS_HAS_CPU_R5000
465 select SYS_HAS_CPU_R10000 if BROKEN
466 select SYS_HAS_CPU_RM7000
467 select SYS_HAS_CPU_NEVADA
468 select SYS_SUPPORTS_64BIT_KERNEL
469 select SYS_SUPPORTS_BIG_ENDIAN
471 If you want this kernel to run on SGI O2 workstation, say Y here.
474 bool "Sibyte BCM91480B-BigSur"
477 select NR_CPUS_DEFAULT_4
479 select SIBYTE_BCM1x80
481 select SYS_HAS_CPU_SB1
482 select SYS_SUPPORTS_BIG_ENDIAN
483 select SYS_SUPPORTS_LITTLE_ENDIAN
486 bool "Sibyte BCM91250A-SWARM"
489 select NR_CPUS_DEFAULT_2
492 select SYS_HAS_CPU_SB1
493 select SYS_SUPPORTS_BIG_ENDIAN
494 select SYS_SUPPORTS_HIGHMEM
495 select SYS_SUPPORTS_KGDB
496 select SYS_SUPPORTS_LITTLE_ENDIAN
498 config SIBYTE_SENTOSA
499 bool "Sibyte BCM91250E-Sentosa"
500 depends on EXPERIMENTAL
503 select NR_CPUS_DEFAULT_2
506 select SYS_HAS_CPU_SB1
507 select SYS_SUPPORTS_BIG_ENDIAN
508 select SYS_SUPPORTS_LITTLE_ENDIAN
511 bool "Sibyte BCM91125E-Rhone"
512 depends on EXPERIMENTAL
515 select SIBYTE_BCM1125H
517 select SYS_HAS_CPU_SB1
518 select SYS_SUPPORTS_BIG_ENDIAN
519 select SYS_SUPPORTS_LITTLE_ENDIAN
522 bool "Sibyte BCM91120x-Carmel"
523 depends on EXPERIMENTAL
526 select SIBYTE_BCM1120
528 select SYS_HAS_CPU_SB1
529 select SYS_SUPPORTS_BIG_ENDIAN
530 select SYS_SUPPORTS_LITTLE_ENDIAN
532 config SIBYTE_PTSWARM
533 bool "Sibyte BCM91250PT-PTSWARM"
534 depends on EXPERIMENTAL
537 select NR_CPUS_DEFAULT_2
540 select SYS_HAS_CPU_SB1
541 select SYS_SUPPORTS_BIG_ENDIAN
542 select SYS_SUPPORTS_HIGHMEM
543 select SYS_SUPPORTS_LITTLE_ENDIAN
545 config SIBYTE_LITTLESUR
546 bool "Sibyte BCM91250C2-LittleSur"
547 depends on EXPERIMENTAL
550 select NR_CPUS_DEFAULT_2
553 select SYS_HAS_CPU_SB1
554 select SYS_SUPPORTS_BIG_ENDIAN
555 select SYS_SUPPORTS_HIGHMEM
556 select SYS_SUPPORTS_LITTLE_ENDIAN
559 bool "Sibyte BCM91120C-CRhine"
560 depends on EXPERIMENTAL
563 select SIBYTE_BCM1120
565 select SYS_HAS_CPU_SB1
566 select SYS_SUPPORTS_BIG_ENDIAN
567 select SYS_SUPPORTS_LITTLE_ENDIAN
570 bool "Sibyte BCM91125C-CRhone"
571 depends on EXPERIMENTAL
574 select SIBYTE_BCM1125
576 select SYS_HAS_CPU_SB1
577 select SYS_SUPPORTS_BIG_ENDIAN
578 select SYS_SUPPORTS_HIGHMEM
579 select SYS_SUPPORTS_LITTLE_ENDIAN
582 bool "SNI RM200/300/400"
583 select ARC if CPU_LITTLE_ENDIAN
584 select ARC32 if CPU_LITTLE_ENDIAN
585 select ARCH_MAY_HAVE_PC_FDC
587 select DMA_NONCOHERENT
588 select GENERIC_ISA_DMA
595 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
596 select SYS_HAS_CPU_R4X00
597 select SYS_HAS_CPU_R5000
598 select SYS_HAS_CPU_R10000
599 select R5000_CPU_SCACHE
600 select SYS_HAS_EARLY_PRINTK
601 select SYS_SUPPORTS_32BIT_KERNEL
602 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
603 select SYS_SUPPORTS_BIG_ENDIAN
604 select SYS_SUPPORTS_HIGHMEM
605 select SYS_SUPPORTS_LITTLE_ENDIAN
607 The SNI RM200/300/400 are MIPS-based machines manufactured by
608 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
609 Technology and now in turn merged with Fujitsu. Say Y here to
610 support this machine type.
612 config TOSHIBA_JMR3927
613 bool "Toshiba JMR-TX3927 board"
614 select DMA_NONCOHERENT
618 select SYS_HAS_CPU_TX39XX
619 select SYS_SUPPORTS_32BIT_KERNEL
620 select SYS_SUPPORTS_LITTLE_ENDIAN
621 select SYS_SUPPORTS_BIG_ENDIAN
622 select GENERIC_HARDIRQS_NO__DO_IRQ
624 config TOSHIBA_RBTX4927
625 bool "Toshiba TBTX49[23]7 board"
626 select DMA_NONCOHERENT
627 select HAS_TXX9_SERIAL
631 select SYS_HAS_CPU_TX49XX
632 select SYS_SUPPORTS_32BIT_KERNEL
633 select SYS_SUPPORTS_64BIT_KERNEL
634 select SYS_SUPPORTS_LITTLE_ENDIAN
635 select SYS_SUPPORTS_BIG_ENDIAN
636 select SYS_SUPPORTS_KGDB
637 select GENERIC_HARDIRQS_NO__DO_IRQ
639 This Toshiba board is based on the TX4927 processor. Say Y here to
640 support this machine type
642 config TOSHIBA_RBTX4938
643 bool "Toshiba RBTX4938 board"
644 select HAVE_STD_PC_SERIAL_PORT
645 select DMA_NONCOHERENT
646 select GENERIC_ISA_DMA
647 select HAS_TXX9_SERIAL
651 select SYS_HAS_CPU_TX49XX
652 select SYS_SUPPORTS_32BIT_KERNEL
653 select SYS_SUPPORTS_LITTLE_ENDIAN
654 select SYS_SUPPORTS_BIG_ENDIAN
655 select SYS_SUPPORTS_KGDB
656 select GENERIC_HARDIRQS_NO__DO_IRQ
658 This Toshiba board is based on the TX4938 processor. Say Y here to
659 support this machine type
663 source "arch/mips/au1000/Kconfig"
664 source "arch/mips/ddb5xxx/Kconfig"
665 source "arch/mips/gt64120/ev64120/Kconfig"
666 source "arch/mips/jazz/Kconfig"
667 source "arch/mips/lasat/Kconfig"
668 source "arch/mips/pmc-sierra/Kconfig"
669 source "arch/mips/sgi-ip27/Kconfig"
670 source "arch/mips/sibyte/Kconfig"
671 source "arch/mips/tx4927/Kconfig"
672 source "arch/mips/tx4938/Kconfig"
673 source "arch/mips/vr41xx/Kconfig"
674 source "arch/mips/philips/pnx8550/common/Kconfig"
678 config RWSEM_GENERIC_SPINLOCK
682 config RWSEM_XCHGADD_ALGORITHM
685 config ARCH_HAS_ILOG2_U32
689 config ARCH_HAS_ILOG2_U64
693 config GENERIC_FIND_NEXT_BIT
697 config GENERIC_HWEIGHT
701 config GENERIC_CALIBRATE_DELAY
709 config SCHED_NO_NO_OMIT_FRAME_POINTER
713 config GENERIC_HARDIRQS_NO__DO_IRQ
718 # Select some configuration options automatically based on user selections.
723 config ARCH_MAY_HAVE_PC_FDC
734 select DMA_NEED_PCI_MAP_STATE
736 config DMA_NONCOHERENT
738 select DMA_NEED_PCI_MAP_STATE
740 config DMA_NEED_PCI_MAP_STATE
744 bool "Early printk" if EMBEDDED && DEBUG_KERNEL
745 depends on SYS_HAS_EARLY_PRINTK
748 This option enables special console drivers which allow the kernel
749 to print messages very early in the bootup process.
751 This is useful for kernel debugging when your machine crashes very
752 early before the console code is initialized. For normal operation,
753 it is not recommended because it looks ugly on some machines and
754 doesn't cooperate with an X server. You should normally say N here,
755 unless you want to debug such a crash.
757 config SYS_HAS_EARLY_PRINTK
760 config GENERIC_ISA_DMA
776 config MIPS_DISABLE_OBSOLETE_IDE
782 config GENERIC_ISA_DMA_SUPPORT_BROKEN
790 # Endianess selection. Sufficiently obscure so many users don't know what to
791 # answer,so we try hard to limit the available choices. Also the use of a
792 # choice statement should be more obvious to the user.
795 prompt "Endianess selection"
797 Some MIPS machines can be configured for either little or big endian
798 byte order. These modes require different kernels and a different
799 Linux distribution. In general there is one preferred byteorder for a
800 particular system but some systems are just as commonly used in the
801 one or the other endianness.
803 config CPU_BIG_ENDIAN
805 depends on SYS_SUPPORTS_BIG_ENDIAN
807 config CPU_LITTLE_ENDIAN
809 depends on SYS_SUPPORTS_LITTLE_ENDIAN
814 config SYS_SUPPORTS_APM_EMULATION
817 config SYS_SUPPORTS_BIG_ENDIAN
820 config SYS_SUPPORTS_LITTLE_ENDIAN
835 config DDB5XXX_COMMON
837 select SYS_SUPPORTS_KGDB
839 config MIPS_BOARDS_GEN
842 config PCI_GT64XXX_PCI0
847 select HAS_TXX9_SERIAL
862 select DMA_NONCOHERENT
864 select SYS_HAS_CPU_MIPS32_R1
865 select SYS_HAS_EARLY_PRINTK
866 select SYS_SUPPORTS_32BIT_KERNEL
867 select GENERIC_HARDIRQS_NO__DO_IRQ
868 select SYS_SUPPORTS_KGDB
883 # Unfortunately not all GT64120 systems run the chip at the same clock.
884 # As the user for the clock rate and try to minimize the available options.
887 prompt "Galileo Chip Clock"
888 #default SYSCLK_83 if MIPS_EV64120
889 depends on MIPS_EV64120 || MOMENCO_OCELOT
890 default SYSCLK_83 if MIPS_EV64120
891 default SYSCLK_100 if MOMENCO_OCELOT
894 bool "75" if MIPS_EV64120
897 bool "83.3" if MIPS_EV64120
900 bool "100" if MIPS_EV64120 || MOMENCO_OCELOT
910 config MIPS_L1_CACHE_SHIFT
912 default "4" if MACH_DECSTATION || SNI_RM
913 default "7" if SGI_IP27
916 config HAVE_STD_PC_SERIAL_PORT
920 bool "ARC console support"
921 depends on SGI_IP22 || (SNI_RM && CPU_LITTLE_ENDIAN)
925 depends on MACH_JAZZ || SNI_RM || SGI_IP32
930 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP32
946 bool "MIPS32 Release 1"
947 depends on SYS_HAS_CPU_MIPS32_R1
949 select CPU_HAS_PREFETCH
950 select CPU_SUPPORTS_32BIT_KERNEL
951 select CPU_SUPPORTS_HIGHMEM
953 Choose this option to build a kernel for release 1 or later of the
954 MIPS32 architecture. Most modern embedded systems with a 32-bit
955 MIPS processor are based on a MIPS32 processor. If you know the
956 specific type of processor in your system, choose those that one
957 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
958 Release 2 of the MIPS32 architecture is available since several
959 years so chances are you even have a MIPS32 Release 2 processor
960 in which case you should choose CPU_MIPS32_R2 instead for better
964 bool "MIPS32 Release 2"
965 depends on SYS_HAS_CPU_MIPS32_R2
967 select CPU_HAS_PREFETCH
968 select CPU_SUPPORTS_32BIT_KERNEL
969 select CPU_SUPPORTS_HIGHMEM
971 Choose this option to build a kernel for release 2 or later of the
972 MIPS32 architecture. Most modern embedded systems with a 32-bit
973 MIPS processor are based on a MIPS32 processor. If you know the
974 specific type of processor in your system, choose those that one
975 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
978 bool "MIPS64 Release 1"
979 depends on SYS_HAS_CPU_MIPS64_R1
981 select CPU_HAS_PREFETCH
982 select CPU_SUPPORTS_32BIT_KERNEL
983 select CPU_SUPPORTS_64BIT_KERNEL
984 select CPU_SUPPORTS_HIGHMEM
986 Choose this option to build a kernel for release 1 or later of the
987 MIPS64 architecture. Many modern embedded systems with a 64-bit
988 MIPS processor are based on a MIPS64 processor. If you know the
989 specific type of processor in your system, choose those that one
990 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
991 Release 2 of the MIPS64 architecture is available since several
992 years so chances are you even have a MIPS64 Release 2 processor
993 in which case you should choose CPU_MIPS64_R2 instead for better
997 bool "MIPS64 Release 2"
998 depends on SYS_HAS_CPU_MIPS64_R2
1000 select CPU_HAS_PREFETCH
1001 select CPU_SUPPORTS_32BIT_KERNEL
1002 select CPU_SUPPORTS_64BIT_KERNEL
1003 select CPU_SUPPORTS_HIGHMEM
1005 Choose this option to build a kernel for release 2 or later of the
1006 MIPS64 architecture. Many modern embedded systems with a 64-bit
1007 MIPS processor are based on a MIPS64 processor. If you know the
1008 specific type of processor in your system, choose those that one
1009 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1013 depends on SYS_HAS_CPU_R3000
1015 select CPU_SUPPORTS_32BIT_KERNEL
1016 select CPU_SUPPORTS_HIGHMEM
1018 Please make sure to pick the right CPU type. Linux/MIPS is not
1019 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1020 *not* work on R4000 machines and vice versa. However, since most
1021 of the supported machines have an R4000 (or similar) CPU, R4x00
1022 might be a safe bet. If the resulting kernel does not work,
1023 try to recompile with R3000.
1027 depends on SYS_HAS_CPU_TX39XX
1028 select CPU_SUPPORTS_32BIT_KERNEL
1032 depends on SYS_HAS_CPU_VR41XX
1033 select CPU_SUPPORTS_32BIT_KERNEL
1034 select CPU_SUPPORTS_64BIT_KERNEL
1036 The options selects support for the NEC VR4100 series of processors.
1037 Only choose this option if you have one of these processors as a
1038 kernel built with this option will not run on any other type of
1039 processor or vice versa.
1043 depends on SYS_HAS_CPU_R4300
1045 select CPU_SUPPORTS_32BIT_KERNEL
1046 select CPU_SUPPORTS_64BIT_KERNEL
1048 MIPS Technologies R4300-series processors.
1052 depends on SYS_HAS_CPU_R4X00
1054 select CPU_SUPPORTS_32BIT_KERNEL
1055 select CPU_SUPPORTS_64BIT_KERNEL
1057 MIPS Technologies R4000-series processors other than 4300, including
1058 the R4000, R4400, R4600, and 4700.
1062 depends on SYS_HAS_CPU_TX49XX
1064 select CPU_HAS_PREFETCH
1065 select CPU_SUPPORTS_32BIT_KERNEL
1066 select CPU_SUPPORTS_64BIT_KERNEL
1070 depends on SYS_HAS_CPU_R5000
1072 select CPU_SUPPORTS_32BIT_KERNEL
1073 select CPU_SUPPORTS_64BIT_KERNEL
1075 MIPS Technologies R5000-series processors other than the Nevada.
1079 depends on SYS_HAS_CPU_R5432
1081 select CPU_SUPPORTS_32BIT_KERNEL
1082 select CPU_SUPPORTS_64BIT_KERNEL
1086 depends on EXPERIMENTAL
1088 depends on SYS_HAS_CPU_R6000
1089 select CPU_SUPPORTS_32BIT_KERNEL
1091 MIPS Technologies R6000 and R6000A series processors. Note these
1092 processors are extremely rare and the support for them is incomplete.
1096 depends on SYS_HAS_CPU_NEVADA
1098 select CPU_SUPPORTS_32BIT_KERNEL
1099 select CPU_SUPPORTS_64BIT_KERNEL
1101 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1105 depends on EXPERIMENTAL
1106 depends on SYS_HAS_CPU_R8000
1108 select CPU_HAS_PREFETCH
1109 select CPU_SUPPORTS_64BIT_KERNEL
1111 MIPS Technologies R8000 processors. Note these processors are
1112 uncommon and the support for them is incomplete.
1116 depends on SYS_HAS_CPU_R10000
1118 select CPU_HAS_PREFETCH
1119 select CPU_SUPPORTS_32BIT_KERNEL
1120 select CPU_SUPPORTS_64BIT_KERNEL
1121 select CPU_SUPPORTS_HIGHMEM
1123 MIPS Technologies R10000-series processors.
1127 depends on SYS_HAS_CPU_RM7000
1129 select CPU_HAS_PREFETCH
1130 select CPU_SUPPORTS_32BIT_KERNEL
1131 select CPU_SUPPORTS_64BIT_KERNEL
1132 select CPU_SUPPORTS_HIGHMEM
1136 depends on SYS_HAS_CPU_RM9000
1138 select CPU_HAS_PREFETCH
1139 select CPU_SUPPORTS_32BIT_KERNEL
1140 select CPU_SUPPORTS_64BIT_KERNEL
1141 select CPU_SUPPORTS_HIGHMEM
1142 select WEAK_ORDERING
1146 depends on SYS_HAS_CPU_SB1
1148 select CPU_SUPPORTS_32BIT_KERNEL
1149 select CPU_SUPPORTS_64BIT_KERNEL
1150 select CPU_SUPPORTS_HIGHMEM
1151 select WEAK_ORDERING
1155 config SYS_HAS_CPU_MIPS32_R1
1158 config SYS_HAS_CPU_MIPS32_R2
1161 config SYS_HAS_CPU_MIPS64_R1
1164 config SYS_HAS_CPU_MIPS64_R2
1167 config SYS_HAS_CPU_R3000
1170 config SYS_HAS_CPU_TX39XX
1173 config SYS_HAS_CPU_VR41XX
1176 config SYS_HAS_CPU_R4300
1179 config SYS_HAS_CPU_R4X00
1182 config SYS_HAS_CPU_TX49XX
1185 config SYS_HAS_CPU_R5000
1188 config SYS_HAS_CPU_R5432
1191 config SYS_HAS_CPU_R6000
1194 config SYS_HAS_CPU_NEVADA
1197 config SYS_HAS_CPU_R8000
1200 config SYS_HAS_CPU_R10000
1203 config SYS_HAS_CPU_RM7000
1206 config SYS_HAS_CPU_RM9000
1209 config SYS_HAS_CPU_SB1
1212 config WEAK_ORDERING
1217 # These two indicate any level of the MIPS32 and MIPS64 architecture
1221 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1225 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1228 # These two indicate the revision of the architecture, either Release 1 or Release 2
1232 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1236 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2
1238 config SYS_SUPPORTS_32BIT_KERNEL
1240 config SYS_SUPPORTS_64BIT_KERNEL
1242 config CPU_SUPPORTS_32BIT_KERNEL
1244 config CPU_SUPPORTS_64BIT_KERNEL
1251 prompt "Kernel code model"
1253 You should only select this option if you have a workload that
1254 actually benefits from 64-bit processing or if your machine has
1255 large memory. You will only be presented a single option in this
1256 menu if your system does not support both 32-bit and 64-bit kernels.
1259 bool "32-bit kernel"
1260 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1263 Select this option if you want to build a 32-bit kernel.
1265 bool "64-bit kernel"
1266 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1268 Select this option if you want to build a 64-bit kernel.
1273 prompt "Kernel page size"
1274 default PAGE_SIZE_4KB
1276 config PAGE_SIZE_4KB
1279 This option select the standard 4kB Linux page size. On some
1280 R3000-family processors this is the only available page size. Using
1281 4kB page size will minimize memory consumption and is therefore
1282 recommended for low memory systems.
1284 config PAGE_SIZE_8KB
1286 depends on EXPERIMENTAL && CPU_R8000
1288 Using 8kB page size will result in higher performance kernel at
1289 the price of higher memory consumption. This option is available
1290 only on the R8000 processor. Not that at the time of this writing
1291 this option is still high experimental; there are also issues with
1292 compatibility of user applications.
1294 config PAGE_SIZE_16KB
1296 depends on !CPU_R3000 && !CPU_TX39XX
1298 Using 16kB page size will result in higher performance kernel at
1299 the price of higher memory consumption. This option is available on
1300 all non-R3000 family processors. Note that you will need a suitable
1301 Linux distribution to support this.
1303 config PAGE_SIZE_64KB
1305 depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
1307 Using 64kB page size will result in higher performance kernel at
1308 the price of higher memory consumption. This option is available on
1309 all non-R3000 family processor. Not that at the time of this
1310 writing this option is still high experimental.
1317 config IP22_CPU_SCACHE
1322 # Support for a MIPS32 / MIPS64 style S-caches
1324 config MIPS_CPU_SCACHE
1328 config R5000_CPU_SCACHE
1332 config RM7000_CPU_SCACHE
1336 config SIBYTE_DMA_PAGEOPS
1337 bool "Use DMA to clear/copy pages"
1340 Instead of using the CPU to zero and copy pages, use a Data Mover
1341 channel. These DMA channels are otherwise unused by the standard
1342 SiByte Linux port. Seems to give a small performance benefit.
1344 config CPU_HAS_PREFETCH
1348 prompt "MIPS MT options"
1350 config MIPS_MT_DISABLED
1351 bool "Disable multithreading support."
1353 Use this option if your workload can't take advantage of
1354 MIPS hardware multithreading support. On systems that don't have
1355 the option of an MT-enabled processor this option will be the only
1356 option in this menu.
1359 bool "Use 1 TC on each available VPE for SMP"
1360 depends on SYS_SUPPORTS_MULTITHREADING
1361 select CPU_MIPSR2_IRQ_VI
1362 select CPU_MIPSR2_IRQ_EI
1363 select CPU_MIPSR2_SRS
1365 select NR_CPUS_DEFAULT_2
1367 select SYS_SUPPORTS_SMP
1369 This is a kernel model which is also known a VSMP or lately
1370 has been marketesed into SMVP.
1373 bool "SMTC: Use all TCs on all VPEs for SMP"
1374 depends on CPU_MIPS32_R2
1375 #depends on CPU_MIPS64_R2 # once there is hardware ...
1376 depends on SYS_SUPPORTS_MULTITHREADING
1377 select CPU_MIPSR2_IRQ_VI
1378 select CPU_MIPSR2_IRQ_EI
1379 select CPU_MIPSR2_SRS
1381 select NR_CPUS_DEFAULT_8
1383 select SYS_SUPPORTS_SMP
1385 This is a kernel model which is known a SMTC or lately has been
1386 marketesed into SMVP.
1388 config MIPS_VPE_LOADER
1389 bool "VPE loader support."
1390 depends on SYS_SUPPORTS_MULTITHREADING
1391 select CPU_MIPSR2_IRQ_VI
1392 select CPU_MIPSR2_IRQ_EI
1393 select CPU_MIPSR2_SRS
1396 Includes a loader for loading an elf relocatable object
1397 onto another VPE and running it.
1404 config SYS_SUPPORTS_MULTITHREADING
1407 config MIPS_MT_FPAFF
1408 bool "Dynamic FPU affinity for FP-intensive threads"
1412 config MIPS_MT_SMTC_INSTANT_REPLAY
1413 bool "Low-latency Dispatch of Deferred SMTC IPIs"
1414 depends on MIPS_MT_SMTC && !PREEMPT
1417 SMTC pseudo-interrupts between TCs are deferred and queued
1418 if the target TC is interrupt-inhibited (IXMT). In the first
1419 SMTC prototypes, these queued IPIs were serviced on return
1420 to user mode, or on entry into the kernel idle loop. The
1421 INSTANT_REPLAY option dispatches them as part of local_irq_restore()
1422 processing, which adds runtime overhead (hence the option to turn
1423 it off), but ensures that IPIs are handled promptly even under
1424 heavy I/O interrupt load.
1426 config MIPS_VPE_LOADER_TOM
1427 bool "Load VPE program into memory hidden from linux"
1428 depends on MIPS_VPE_LOADER
1431 The loader can use memory that is present but has been hidden from
1432 Linux using the kernel command line option "mem=xxMB". It's up to
1433 you to ensure the amount you put in the option and the space your
1434 program requires is less or equal to the amount physically present.
1436 # this should possibly be in drivers/char, but it is rather cpu related. Hmmm
1437 config MIPS_VPE_APSP_API
1438 bool "Enable support for AP/SP API (RTLX)"
1439 depends on MIPS_VPE_LOADER
1442 config MIPS_APSP_KSPD
1444 depends on MIPS_VPE_APSP_API
1447 KSPD is a kernel daemon that accepts syscall requests from the SP
1448 side, actions them and returns the results. It also handles the
1449 "exit" syscall notifying other kernel modules the SP program is
1450 exiting. You probably want to say yes here.
1452 config SB1_PASS_1_WORKAROUNDS
1454 depends on CPU_SB1_PASS_1
1457 config SB1_PASS_2_WORKAROUNDS
1459 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
1462 config SB1_PASS_2_1_WORKAROUNDS
1464 depends on CPU_SB1 && CPU_SB1_PASS_2
1467 config 64BIT_PHYS_ADDR
1468 bool "Support for 64-bit physical address space"
1469 depends on (CPU_R4X00 || CPU_R5000 || CPU_RM7000 || CPU_RM9000 || CPU_R10000 || CPU_SB1 || CPU_MIPS32 || CPU_MIPS64) && 32BIT
1474 config CPU_HAS_SMARTMIPS
1475 depends on SYS_SUPPORTS_SMARTMIPS
1476 bool "Support for the SmartMIPS ASE"
1478 SmartMIPS is a extension of the MIPS32 architecture aimed at
1479 increased security at both hardware and software level for
1480 smartcards. Enabling this option will allow proper use of the
1481 SmartMIPS instructions by Linux applications. However a kernel with
1482 this option will not work on a MIPS core without SmartMIPS core. If
1483 you don't know you probably don't have SmartMIPS and should say N
1490 # Vectored interrupt mode is an R2 feature
1492 config CPU_MIPSR2_IRQ_VI
1496 # Extended interrupt mode is an R2 feature
1498 config CPU_MIPSR2_IRQ_EI
1502 # Shadow registers are an R2 feature
1504 config CPU_MIPSR2_SRS
1509 depends on !CPU_R3000
1513 # Use the generic interrupt handling code in kernel/irq/:
1515 config GENERIC_HARDIRQS
1519 config GENERIC_IRQ_PROBE
1527 # - Highmem only makes sense for the 32-bit kernel.
1528 # - The current highmem code will only work properly on physically indexed
1529 # caches such as R3000, SB1, R7000 or those that look like they're virtually
1530 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
1531 # moment we protect the user and offer the highmem option only on machines
1532 # where it's known to be safe. This will not offer highmem on a few systems
1533 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
1534 # indexed CPUs but we're playing safe.
1535 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
1536 # know they might have memory configurations that could make use of highmem
1540 bool "High Memory Support"
1541 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
1543 config CPU_SUPPORTS_HIGHMEM
1546 config SYS_SUPPORTS_HIGHMEM
1549 config SYS_SUPPORTS_SMARTMIPS
1552 config ARCH_FLATMEM_ENABLE
1556 config ARCH_DISCONTIGMEM_ENABLE
1558 default y if SGI_IP27
1560 Say Y to support efficient handling of discontiguous physical memory,
1561 for architectures which are either NUMA (Non-Uniform Memory Access)
1562 or have huge holes in the physical address space for other reasons.
1563 See <file:Documentation/vm/numa> for more.
1565 config ARCH_SPARSEMEM_ENABLE
1567 select SPARSEMEM_STATIC
1571 depends on SYS_SUPPORTS_NUMA
1573 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
1574 Access). This option improves performance on systems with more
1575 than two nodes; on two node systems it is generally better to
1576 leave it disabled; on single node systems disable this option
1579 config SYS_SUPPORTS_NUMA
1585 depends on NEED_MULTIPLE_NODES
1590 bool "Multi-Processing support"
1591 depends on SYS_SUPPORTS_SMP
1594 This enables support for systems with more than one CPU. If you have
1595 a system with only one CPU, like most personal computers, say N. If
1596 you have a system with more than one CPU, say Y.
1598 If you say N here, the kernel will run on single and multiprocessor
1599 machines, but will use only one CPU of a multiprocessor machine. If
1600 you say Y here, the kernel will run on many, but not all,
1601 singleprocessor machines. On a singleprocessor machine, the kernel
1602 will run faster if you say N here.
1604 People using multiprocessor machines who say Y here should also say
1605 Y to "Enhanced Real Time Clock Support", below.
1607 See also the <file:Documentation/smp.txt> and the SMP-HOWTO
1608 available at <http://www.tldp.org/docs.html#howto>.
1610 If you don't know what to do here, say N.
1612 config SYS_SUPPORTS_SMP
1615 config NR_CPUS_DEFAULT_1
1618 config NR_CPUS_DEFAULT_2
1621 config NR_CPUS_DEFAULT_4
1624 config NR_CPUS_DEFAULT_8
1627 config NR_CPUS_DEFAULT_16
1630 config NR_CPUS_DEFAULT_32
1633 config NR_CPUS_DEFAULT_64
1637 int "Maximum number of CPUs (2-64)"
1638 range 1 64 if NR_CPUS_DEFAULT_1
1640 default "1" if NR_CPUS_DEFAULT_1
1641 default "2" if NR_CPUS_DEFAULT_2
1642 default "4" if NR_CPUS_DEFAULT_4
1643 default "8" if NR_CPUS_DEFAULT_8
1644 default "16" if NR_CPUS_DEFAULT_16
1645 default "32" if NR_CPUS_DEFAULT_32
1646 default "64" if NR_CPUS_DEFAULT_64
1648 This allows you to specify the maximum number of CPUs which this
1649 kernel will support. The maximum supported value is 32 for 32-bit
1650 kernel and 64 for 64-bit kernels; the minimum value which makes
1651 sense is 1 for Qemu (useful only for kernel debugging purposes)
1652 and 2 for all others.
1654 This is purely to save memory - each supported CPU adds
1655 approximately eight kilobytes to the kernel image. For best
1656 performance should round up your number of processors to the next
1660 # Timer Interrupt Frequency Configuration
1664 prompt "Timer frequency"
1667 Allows the configuration of the timer frequency.
1670 bool "48 HZ" if SYS_SUPPORTS_48HZ
1673 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
1676 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
1679 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
1682 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
1685 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
1688 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
1692 config SYS_SUPPORTS_48HZ
1695 config SYS_SUPPORTS_100HZ
1698 config SYS_SUPPORTS_128HZ
1701 config SYS_SUPPORTS_250HZ
1704 config SYS_SUPPORTS_256HZ
1707 config SYS_SUPPORTS_1000HZ
1710 config SYS_SUPPORTS_1024HZ
1713 config SYS_SUPPORTS_ARBIT_HZ
1715 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
1716 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
1717 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
1718 !SYS_SUPPORTS_1024HZ
1723 default 100 if HZ_100
1724 default 128 if HZ_128
1725 default 250 if HZ_250
1726 default 256 if HZ_256
1727 default 1000 if HZ_1000
1728 default 1024 if HZ_1024
1730 source "kernel/Kconfig.preempt"
1732 config MIPS_INSANE_LARGE
1733 bool "Support for large 64-bit configurations"
1734 depends on CPU_R10000 && 64BIT
1736 MIPS R10000 does support a 44 bit / 16TB address space as opposed to
1737 previous 64-bit processors which only supported 40 bit / 1TB. If you
1738 need processes of more than 1TB virtual address space, say Y here.
1739 This will result in additional memory usage, so it is not
1740 recommended for normal users.
1743 bool "Kexec system call (EXPERIMENTAL)"
1744 depends on EXPERIMENTAL
1746 kexec is a system call that implements the ability to shutdown your
1747 current kernel, and to start another kernel. It is like a reboot
1748 but it is independent of the system firmware. And like a reboot
1749 you can start any kernel with it, not just Linux.
1751 The name comes from the similiarity to the exec system call.
1753 It is an ongoing process to be certain the hardware in a machine
1754 is properly shutdown, so do not be surprised if this code does not
1755 initially work for you. It may help to enable device hotplugging
1756 support. As of this writing the exact hardware interface is
1757 strongly in flux, so no good recommendation can be made.
1760 bool "Enable seccomp to safely compute untrusted bytecode"
1761 depends on PROC_FS && BROKEN
1764 This kernel feature is useful for number crunching applications
1765 that may need to compute untrusted bytecode during their
1766 execution. By using pipes or other transports made available to
1767 the process as file descriptors supporting the read/write
1768 syscalls, it's possible to isolate those applications in
1769 their own address space using seccomp. Once seccomp is
1770 enabled via /proc/<pid>/seccomp, it cannot be disabled
1771 and the task is only allowed to execute a few safe syscalls
1772 defined by each seccomp mode.
1774 If unsure, say Y. Only embedded should say N here.
1778 config RWSEM_GENERIC_SPINLOCK
1782 config LOCKDEP_SUPPORT
1786 config STACKTRACE_SUPPORT
1790 source "init/Kconfig"
1792 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
1800 bool "Support for PCI controller"
1801 depends on HW_HAS_PCI
1803 Find out whether you have a PCI motherboard. PCI is the name of a
1804 bus system, i.e. the way the CPU talks to the other stuff inside
1805 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
1808 The PCI-HOWTO, available from
1809 <http://www.tldp.org/docs.html#howto>, contains valuable
1810 information about which PCI hardware does work under Linux and which
1817 source "drivers/pci/Kconfig"
1820 # ISA support is now enabled via select. Too many systems still have the one
1821 # or other ISA chip on the board that users don't know about so don't expect
1822 # users to choose the right thing ...
1829 depends on HW_HAS_EISA
1831 select GENERIC_ISA_DMA
1833 The Extended Industry Standard Architecture (EISA) bus was
1834 developed as an open alternative to the IBM MicroChannel bus.
1836 The EISA bus provided some of the features of the IBM MicroChannel
1837 bus while maintaining backward compatibility with cards made for
1838 the older ISA bus. The EISA bus saw limited use between 1988 and
1839 1995 when it was made obsolete by the PCI bus.
1841 Say Y here if you are building a kernel for an EISA-based machine.
1845 source "drivers/eisa/Kconfig"
1848 bool "TURBOchannel support"
1849 depends on MACH_DECSTATION
1851 TurboChannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
1852 processors. Documentation on writing device drivers for TurboChannel
1854 <http://www.cs.arizona.edu/computer.help/policy/DIGITAL_unix/AA-PS3HD-TET1_html/TITLE.html>.
1857 # bool "Access.Bus support"
1867 source "drivers/pcmcia/Kconfig"
1869 source "drivers/pci/hotplug/Kconfig"
1873 menu "Executable file formats"
1875 source "fs/Kconfig.binfmt"
1881 bool "Use 64-bit ELF format for building"
1884 A 64-bit kernel is usually built using the 64-bit ELF binary object
1885 format as it's one that allows arbitrary 64-bit constructs. For
1886 kernels that are loaded within the KSEG compatibility segments the
1887 32-bit ELF format can optionally be used resulting in a somewhat
1888 smaller binary, but this option is not explicitly supported by the
1889 toolchain and since binutils 2.14 it does not even work at all.
1891 Say Y to use the 64-bit format or N to use the 32-bit one.
1896 bool "Include IRIX binary compatibility"
1897 depends on CPU_BIG_ENDIAN && 32BIT && BROKEN
1899 config MIPS32_COMPAT
1900 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
1903 Select this option if you want Linux/MIPS 32-bit binary
1904 compatibility. Since all software available for Linux/MIPS is
1905 currently 32-bit you should say Y here.
1909 depends on MIPS32_COMPAT
1912 config SYSVIPC_COMPAT
1914 depends on COMPAT && SYSVIPC
1918 bool "Kernel support for o32 binaries"
1919 depends on MIPS32_COMPAT
1921 Select this option if you want to run o32 binaries. These are pure
1922 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
1923 existing binaries are in this format.
1928 bool "Kernel support for n32 binaries"
1929 depends on MIPS32_COMPAT
1931 Select this option if you want to run n32 binaries. These are
1932 64-bit binaries using 32-bit quantities for addressing and certain
1933 data that would normally be 64-bit. They are used in special
1940 default y if MIPS32_O32 || MIPS32_N32
1944 menu "Power management options"
1946 source "kernel/power/Kconfig"
1950 source "net/Kconfig"
1952 source "drivers/Kconfig"
1956 source "arch/mips/oprofile/Kconfig"
1958 source "arch/mips/Kconfig.debug"
1960 source "security/Kconfig"
1962 source "crypto/Kconfig"
1964 source "lib/Kconfig"