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
68 select SYS_HAS_CPU_R3000
69 select SYS_HAS_CPU_R4X00
70 select SYS_SUPPORTS_32BIT_KERNEL
71 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
72 select SYS_SUPPORTS_LITTLE_ENDIAN
73 select SYS_SUPPORTS_128HZ
74 select SYS_SUPPORTS_256HZ
75 select SYS_SUPPORTS_1024HZ
77 This enables support for DEC's MIPS based workstations. For details
78 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
79 DECstation porting pages on <http://decstation.unix-ag.org/>.
81 If you have one of the following DECstation Models you definitely
82 want to choose R4xx0 for the CPU Type:
89 otherwise choose R3000.
92 bool "Jazz family of machines"
95 select ARCH_MAY_HAVE_PC_FDC
96 select GENERIC_ISA_DMA
100 select SYS_HAS_CPU_R4X00
101 select SYS_SUPPORTS_32BIT_KERNEL
102 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
103 select SYS_SUPPORTS_100HZ
104 select GENERIC_HARDIRQS_NO__DO_IRQ
106 This a family of machines based on the MIPS R4030 chipset which was
107 used by several vendors to build RISC/os and Windows NT workstations.
108 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millenium and
109 Olivetti M700-10 workstations.
112 bool "LASAT Networks platforms"
113 select DMA_NONCOHERENT
114 select SYS_HAS_EARLY_PRINTK
116 select PCI_GT64XXX_PCI0
118 select R5000_CPU_SCACHE
119 select SYS_HAS_CPU_R5000
120 select SYS_SUPPORTS_32BIT_KERNEL
121 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
122 select SYS_SUPPORTS_LITTLE_ENDIAN
123 select GENERIC_HARDIRQS_NO__DO_IRQ
126 bool "MIPS Atlas board"
128 select DMA_NONCOHERENT
129 select SYS_HAS_EARLY_PRINTK
132 select MIPS_BOARDS_GEN
134 select PCI_GT64XXX_PCI0
136 select RM7000_CPU_SCACHE
138 select SYS_HAS_CPU_MIPS32_R1
139 select SYS_HAS_CPU_MIPS32_R2
140 select SYS_HAS_CPU_MIPS64_R1
141 select SYS_HAS_CPU_NEVADA
142 select SYS_HAS_CPU_RM7000
143 select SYS_SUPPORTS_32BIT_KERNEL
144 select SYS_SUPPORTS_64BIT_KERNEL
145 select SYS_SUPPORTS_BIG_ENDIAN
146 select SYS_SUPPORTS_LITTLE_ENDIAN
147 select SYS_SUPPORTS_MULTITHREADING if EXPERIMENTAL
148 select SYS_SUPPORTS_SMARTMIPS
149 select GENERIC_HARDIRQS_NO__DO_IRQ
151 This enables support for the MIPS Technologies Atlas evaluation
155 bool "MIPS Malta board"
156 select ARCH_MAY_HAVE_PC_FDC
158 select HAVE_STD_PC_SERIAL_PORT
159 select DMA_NONCOHERENT
160 select GENERIC_ISA_DMA
164 select MIPS_BOARDS_GEN
166 select MIPS_CPU_SCACHE
167 select PCI_GT64XXX_PCI0
170 select SYS_HAS_CPU_MIPS32_R1
171 select SYS_HAS_CPU_MIPS32_R2
172 select SYS_HAS_CPU_MIPS64_R1
173 select SYS_HAS_CPU_NEVADA
174 select SYS_HAS_CPU_RM7000
175 select SYS_HAS_EARLY_PRINTK
176 select SYS_SUPPORTS_32BIT_KERNEL
177 select SYS_SUPPORTS_64BIT_KERNEL
178 select SYS_SUPPORTS_BIG_ENDIAN
179 select SYS_SUPPORTS_LITTLE_ENDIAN
180 select SYS_SUPPORTS_MULTITHREADING
181 select SYS_SUPPORTS_SMARTMIPS
183 This enables support for the MIPS Technologies Malta evaluation
187 bool "MIPS SEAD board (EXPERIMENTAL)"
188 depends on EXPERIMENTAL
190 select DMA_NONCOHERENT
191 select SYS_HAS_EARLY_PRINTK
192 select MIPS_BOARDS_GEN
193 select SYS_HAS_CPU_MIPS32_R1
194 select SYS_HAS_CPU_MIPS32_R2
195 select SYS_HAS_CPU_MIPS64_R1
196 select SYS_SUPPORTS_32BIT_KERNEL
197 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
198 select SYS_SUPPORTS_BIG_ENDIAN
199 select SYS_SUPPORTS_LITTLE_ENDIAN
200 select SYS_SUPPORTS_SMARTMIPS
202 This enables support for the MIPS Technologies SEAD evaluation
206 bool "Wind River PPMC board"
209 select DMA_NONCOHERENT
211 select PCI_GT64XXX_PCI0
213 select SYS_HAS_CPU_MIPS32_R1
214 select SYS_HAS_CPU_MIPS32_R2
215 select SYS_HAS_CPU_MIPS64_R1
216 select SYS_HAS_CPU_NEVADA
217 select SYS_HAS_CPU_RM7000
218 select SYS_SUPPORTS_32BIT_KERNEL
219 select SYS_SUPPORTS_64BIT_KERNEL
220 select SYS_SUPPORTS_BIG_ENDIAN
221 select SYS_SUPPORTS_LITTLE_ENDIAN
223 This enables support for the Wind River MIPS32 4KC PPMC evaluation
224 board, which is based on GT64120 bridge chip.
227 bool 'MIPS simulator (MIPSsim)'
228 select DMA_NONCOHERENT
229 select SYS_HAS_EARLY_PRINTK
231 select SYS_HAS_CPU_MIPS32_R1
232 select SYS_HAS_CPU_MIPS32_R2
233 select SYS_HAS_EARLY_PRINTK
234 select SYS_SUPPORTS_32BIT_KERNEL
235 select SYS_SUPPORTS_BIG_ENDIAN
236 select SYS_SUPPORTS_MULTITHREADING
237 select SYS_SUPPORTS_LITTLE_ENDIAN
239 This option enables support for MIPS Technologies MIPSsim software
242 config MOMENCO_OCELOT
243 bool "Momentum Ocelot board"
244 select DMA_NONCOHERENT
248 select PCI_GT64XXX_PCI0
249 select RM7000_CPU_SCACHE
251 select SYS_HAS_CPU_RM7000
252 select SYS_SUPPORTS_32BIT_KERNEL
253 select SYS_SUPPORTS_64BIT_KERNEL
254 select SYS_SUPPORTS_BIG_ENDIAN
255 select SYS_SUPPORTS_KGDB
257 The Ocelot is a MIPS-based Single Board Computer (SBC) made by
258 Momentum Computer <http://www.momenco.com/>.
260 config MOMENCO_OCELOT_3
261 bool "Momentum Ocelot-3 board"
263 select DMA_NONCOHERENT
269 select RM7000_CPU_SCACHE
271 select SYS_HAS_CPU_RM9000
272 select SYS_SUPPORTS_32BIT_KERNEL
273 select SYS_SUPPORTS_64BIT_KERNEL
274 select SYS_SUPPORTS_BIG_ENDIAN
276 The Ocelot-3 is based off Discovery III System Controller and
277 PMC-Sierra Rm79000 core.
279 config MOMENCO_OCELOT_C
280 bool "Momentum Ocelot-C board"
281 select DMA_NONCOHERENT
286 select RM7000_CPU_SCACHE
288 select SYS_HAS_CPU_RM7000
289 select SYS_SUPPORTS_32BIT_KERNEL
290 select SYS_SUPPORTS_64BIT_KERNEL
291 select SYS_SUPPORTS_BIG_ENDIAN
292 select GENERIC_HARDIRQS_NO__DO_IRQ
294 The Ocelot is a MIPS-based Single Board Computer (SBC) made by
295 Momentum Computer <http://www.momenco.com/>.
298 bool "Philips PNX8550 based JBS board"
300 select SYS_SUPPORTS_LITTLE_ENDIAN
302 config PNX8550_STB810
303 bool "Philips PNX8550 based STB810 board"
305 select SYS_SUPPORTS_LITTLE_ENDIAN
308 bool "NEC DDB Vrc-5477"
309 select DDB5XXX_COMMON
310 select DMA_NONCOHERENT
314 select SYS_HAS_CPU_R5432
315 select SYS_SUPPORTS_32BIT_KERNEL
316 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
317 select SYS_SUPPORTS_KGDB
318 select SYS_SUPPORTS_KGDB
319 select SYS_SUPPORTS_LITTLE_ENDIAN
321 This enables support for the R5432-based NEC DDB Vrc-5477,
322 or Rockhopper/SolutionGear boards with R5432/R5500 CPUs.
324 Features : kernel debugging, serial terminal, NFS root fs, on-board
325 ether port USB, AC97, PCI, etc.
328 bool "NEC VR4100 series based machines"
329 select SYS_HAS_CPU_VR41XX
330 select GENERIC_HARDIRQS_NO__DO_IRQ
333 bool "PMC-Sierra Yosemite eval board"
340 select SYS_HAS_CPU_RM9000
341 select SYS_HAS_EARLY_PRINTK
342 select SYS_SUPPORTS_32BIT_KERNEL
343 select SYS_SUPPORTS_64BIT_KERNEL
344 select SYS_SUPPORTS_BIG_ENDIAN
345 select SYS_SUPPORTS_HIGHMEM
346 select SYS_SUPPORTS_KGDB
347 select SYS_SUPPORTS_SMP
349 Yosemite is an evaluation board for the RM9000x2 processor
350 manufactured by PMC-Sierra.
355 select GENERIC_ISA_DMA
356 select HAVE_STD_PC_SERIAL_PORT
361 select SYS_HAS_CPU_MIPS32_R1
362 select SYS_SUPPORTS_32BIT_KERNEL
363 select SYS_SUPPORTS_BIG_ENDIAN
364 select SYS_SUPPORTS_LITTLE_ENDIAN
365 select ARCH_SPARSEMEM_ENABLE
366 select GENERIC_HARDIRQS_NO__DO_IRQ
367 select NR_CPUS_DEFAULT_1
368 select SYS_SUPPORTS_SMP
370 Qemu is a software emulator which among other architectures also
371 can simulate a MIPS32 4Kc system. This patch adds support for the
372 system architecture that currently is being simulated by Qemu. It
373 will eventually be removed again when Qemu has the capability to
374 simulate actual MIPS hardware platforms. More information on Qemu
375 can be found at http://www.linux-mips.org/wiki/Qemu.
378 bool "NEC EMMA2RH Mark-eins"
379 select DMA_NONCOHERENT
383 select SYS_SUPPORTS_32BIT_KERNEL
384 select SYS_SUPPORTS_BIG_ENDIAN
385 select SYS_SUPPORTS_LITTLE_ENDIAN
386 select SYS_HAS_CPU_R5000
388 This enables support for the R5432-based NEC Mark-eins
389 boards with R5500 CPU.
392 bool "SGI IP22 (Indy/Indigo2)"
396 select DMA_NONCOHERENT
398 select IP22_CPU_SCACHE
400 select GENERIC_ISA_DMA_SUPPORT_BROKEN
402 select SYS_HAS_CPU_R4X00
403 select SYS_HAS_CPU_R5000
404 select SYS_HAS_EARLY_PRINTK
405 select SYS_SUPPORTS_32BIT_KERNEL
406 select SYS_SUPPORTS_64BIT_KERNEL
407 select SYS_SUPPORTS_BIG_ENDIAN
409 This are the SGI Indy, Challenge S and Indigo2, as well as certain
410 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
411 that runs on these, say Y here.
414 bool "SGI IP27 (Origin200/2000)"
419 select SYS_HAS_EARLY_PRINTK
421 select NR_CPUS_DEFAULT_64
423 select SYS_HAS_CPU_R10000
424 select SYS_SUPPORTS_64BIT_KERNEL
425 select SYS_SUPPORTS_BIG_ENDIAN
426 select SYS_SUPPORTS_KGDB
427 select SYS_SUPPORTS_NUMA
428 select SYS_SUPPORTS_SMP
429 select GENERIC_HARDIRQS_NO__DO_IRQ
431 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
432 workstations. To compile a Linux kernel that runs on these, say Y
440 select DMA_NONCOHERENT
442 select R5000_CPU_SCACHE
443 select RM7000_CPU_SCACHE
444 select SYS_HAS_CPU_R5000
445 select SYS_HAS_CPU_R10000 if BROKEN
446 select SYS_HAS_CPU_RM7000
447 select SYS_HAS_CPU_NEVADA
448 select SYS_SUPPORTS_64BIT_KERNEL
449 select SYS_SUPPORTS_BIG_ENDIAN
451 If you want this kernel to run on SGI O2 workstation, say Y here.
454 bool "Sibyte BCM91480B-BigSur"
457 select NR_CPUS_DEFAULT_4
459 select SIBYTE_BCM1x80
461 select SYS_HAS_CPU_SB1
462 select SYS_SUPPORTS_BIG_ENDIAN
463 select SYS_SUPPORTS_LITTLE_ENDIAN
466 bool "Sibyte BCM91250A-SWARM"
469 select NR_CPUS_DEFAULT_2
472 select SYS_HAS_CPU_SB1
473 select SYS_SUPPORTS_BIG_ENDIAN
474 select SYS_SUPPORTS_HIGHMEM
475 select SYS_SUPPORTS_KGDB
476 select SYS_SUPPORTS_LITTLE_ENDIAN
478 config SIBYTE_SENTOSA
479 bool "Sibyte BCM91250E-Sentosa"
480 depends on EXPERIMENTAL
483 select NR_CPUS_DEFAULT_2
486 select SYS_HAS_CPU_SB1
487 select SYS_SUPPORTS_BIG_ENDIAN
488 select SYS_SUPPORTS_LITTLE_ENDIAN
491 bool "Sibyte BCM91125E-Rhone"
492 depends on EXPERIMENTAL
495 select SIBYTE_BCM1125H
497 select SYS_HAS_CPU_SB1
498 select SYS_SUPPORTS_BIG_ENDIAN
499 select SYS_SUPPORTS_LITTLE_ENDIAN
502 bool "Sibyte BCM91120x-Carmel"
503 depends on EXPERIMENTAL
506 select SIBYTE_BCM1120
508 select SYS_HAS_CPU_SB1
509 select SYS_SUPPORTS_BIG_ENDIAN
510 select SYS_SUPPORTS_LITTLE_ENDIAN
512 config SIBYTE_PTSWARM
513 bool "Sibyte BCM91250PT-PTSWARM"
514 depends on EXPERIMENTAL
517 select NR_CPUS_DEFAULT_2
520 select SYS_HAS_CPU_SB1
521 select SYS_SUPPORTS_BIG_ENDIAN
522 select SYS_SUPPORTS_HIGHMEM
523 select SYS_SUPPORTS_LITTLE_ENDIAN
525 config SIBYTE_LITTLESUR
526 bool "Sibyte BCM91250C2-LittleSur"
527 depends on EXPERIMENTAL
530 select NR_CPUS_DEFAULT_2
533 select SYS_HAS_CPU_SB1
534 select SYS_SUPPORTS_BIG_ENDIAN
535 select SYS_SUPPORTS_HIGHMEM
536 select SYS_SUPPORTS_LITTLE_ENDIAN
539 bool "Sibyte BCM91120C-CRhine"
540 depends on EXPERIMENTAL
543 select SIBYTE_BCM1120
545 select SYS_HAS_CPU_SB1
546 select SYS_SUPPORTS_BIG_ENDIAN
547 select SYS_SUPPORTS_LITTLE_ENDIAN
550 bool "Sibyte BCM91125C-CRhone"
551 depends on EXPERIMENTAL
554 select SIBYTE_BCM1125
556 select SYS_HAS_CPU_SB1
557 select SYS_SUPPORTS_BIG_ENDIAN
558 select SYS_SUPPORTS_HIGHMEM
559 select SYS_SUPPORTS_LITTLE_ENDIAN
562 bool "SNI RM200/300/400"
563 select ARC if CPU_LITTLE_ENDIAN
564 select ARC32 if CPU_LITTLE_ENDIAN
565 select ARCH_MAY_HAVE_PC_FDC
567 select DMA_NONCOHERENT
568 select GENERIC_ISA_DMA
575 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
576 select SYS_HAS_CPU_R4X00
577 select SYS_HAS_CPU_R5000
578 select SYS_HAS_CPU_R10000
579 select R5000_CPU_SCACHE
580 select SYS_HAS_EARLY_PRINTK
581 select SYS_SUPPORTS_32BIT_KERNEL
582 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
583 select SYS_SUPPORTS_BIG_ENDIAN
584 select SYS_SUPPORTS_HIGHMEM
585 select SYS_SUPPORTS_LITTLE_ENDIAN
587 The SNI RM200/300/400 are MIPS-based machines manufactured by
588 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
589 Technology and now in turn merged with Fujitsu. Say Y here to
590 support this machine type.
592 config TOSHIBA_JMR3927
593 bool "Toshiba JMR-TX3927 board"
594 select DMA_NONCOHERENT
598 select SYS_HAS_CPU_TX39XX
599 select SYS_SUPPORTS_32BIT_KERNEL
600 select SYS_SUPPORTS_LITTLE_ENDIAN
601 select SYS_SUPPORTS_BIG_ENDIAN
602 select GENERIC_HARDIRQS_NO__DO_IRQ
604 config TOSHIBA_RBTX4927
605 bool "Toshiba TBTX49[23]7 board"
606 select DMA_NONCOHERENT
607 select HAS_TXX9_SERIAL
611 select SYS_HAS_CPU_TX49XX
612 select SYS_SUPPORTS_32BIT_KERNEL
613 select SYS_SUPPORTS_64BIT_KERNEL
614 select SYS_SUPPORTS_LITTLE_ENDIAN
615 select SYS_SUPPORTS_BIG_ENDIAN
616 select SYS_SUPPORTS_KGDB
617 select GENERIC_HARDIRQS_NO__DO_IRQ
619 This Toshiba board is based on the TX4927 processor. Say Y here to
620 support this machine type
622 config TOSHIBA_RBTX4938
623 bool "Toshiba RBTX4938 board"
624 select HAVE_STD_PC_SERIAL_PORT
625 select DMA_NONCOHERENT
626 select GENERIC_ISA_DMA
627 select HAS_TXX9_SERIAL
631 select SYS_HAS_CPU_TX49XX
632 select SYS_SUPPORTS_32BIT_KERNEL
633 select SYS_SUPPORTS_LITTLE_ENDIAN
634 select SYS_SUPPORTS_BIG_ENDIAN
635 select SYS_SUPPORTS_KGDB
636 select GENERIC_HARDIRQS_NO__DO_IRQ
638 This Toshiba board is based on the TX4938 processor. Say Y here to
639 support this machine type
643 source "arch/mips/au1000/Kconfig"
644 source "arch/mips/ddb5xxx/Kconfig"
645 source "arch/mips/jazz/Kconfig"
646 source "arch/mips/lasat/Kconfig"
647 source "arch/mips/pmc-sierra/Kconfig"
648 source "arch/mips/sgi-ip27/Kconfig"
649 source "arch/mips/sibyte/Kconfig"
650 source "arch/mips/tx4927/Kconfig"
651 source "arch/mips/tx4938/Kconfig"
652 source "arch/mips/vr41xx/Kconfig"
653 source "arch/mips/philips/pnx8550/common/Kconfig"
657 config RWSEM_GENERIC_SPINLOCK
661 config RWSEM_XCHGADD_ALGORITHM
664 config ARCH_HAS_ILOG2_U32
668 config ARCH_HAS_ILOG2_U64
672 config GENERIC_FIND_NEXT_BIT
676 config GENERIC_HWEIGHT
680 config GENERIC_CALIBRATE_DELAY
688 config SCHED_NO_NO_OMIT_FRAME_POINTER
692 config GENERIC_HARDIRQS_NO__DO_IRQ
697 # Select some configuration options automatically based on user selections.
702 config ARCH_MAY_HAVE_PC_FDC
713 select DMA_NEED_PCI_MAP_STATE
715 config DMA_NONCOHERENT
717 select DMA_NEED_PCI_MAP_STATE
719 config DMA_NEED_PCI_MAP_STATE
723 bool "Early printk" if EMBEDDED && DEBUG_KERNEL
724 depends on SYS_HAS_EARLY_PRINTK
727 This option enables special console drivers which allow the kernel
728 to print messages very early in the bootup process.
730 This is useful for kernel debugging when your machine crashes very
731 early before the console code is initialized. For normal operation,
732 it is not recommended because it looks ugly on some machines and
733 doesn't cooperate with an X server. You should normally say N here,
734 unless you want to debug such a crash.
736 config SYS_HAS_EARLY_PRINTK
739 config GENERIC_ISA_DMA
755 config MIPS_DISABLE_OBSOLETE_IDE
761 config GENERIC_ISA_DMA_SUPPORT_BROKEN
769 # Endianess selection. Sufficiently obscure so many users don't know what to
770 # answer,so we try hard to limit the available choices. Also the use of a
771 # choice statement should be more obvious to the user.
774 prompt "Endianess selection"
776 Some MIPS machines can be configured for either little or big endian
777 byte order. These modes require different kernels and a different
778 Linux distribution. In general there is one preferred byteorder for a
779 particular system but some systems are just as commonly used in the
780 one or the other endianness.
782 config CPU_BIG_ENDIAN
784 depends on SYS_SUPPORTS_BIG_ENDIAN
786 config CPU_LITTLE_ENDIAN
788 depends on SYS_SUPPORTS_LITTLE_ENDIAN
793 config SYS_SUPPORTS_APM_EMULATION
796 config SYS_SUPPORTS_BIG_ENDIAN
799 config SYS_SUPPORTS_LITTLE_ENDIAN
814 config DDB5XXX_COMMON
816 select SYS_SUPPORTS_KGDB
818 config MIPS_BOARDS_GEN
821 config PCI_GT64XXX_PCI0
826 select HAS_TXX9_SERIAL
841 select DMA_NONCOHERENT
843 select SYS_HAS_CPU_MIPS32_R1
844 select SYS_HAS_EARLY_PRINTK
845 select SYS_SUPPORTS_32BIT_KERNEL
846 select GENERIC_HARDIRQS_NO__DO_IRQ
847 select SYS_SUPPORTS_KGDB
862 # Unfortunately not all GT64120 systems run the chip at the same clock.
863 # As the user for the clock rate and try to minimize the available options.
866 prompt "Galileo Chip Clock"
867 depends on MOMENCO_OCELOT
868 default SYSCLK_100 if MOMENCO_OCELOT
871 bool "100" if MOMENCO_OCELOT
881 config MIPS_L1_CACHE_SHIFT
883 default "4" if MACH_DECSTATION || SNI_RM
884 default "7" if SGI_IP27
887 config HAVE_STD_PC_SERIAL_PORT
891 bool "ARC console support"
892 depends on SGI_IP22 || (SNI_RM && CPU_LITTLE_ENDIAN)
896 depends on MACH_JAZZ || SNI_RM || SGI_IP32
901 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP32
917 bool "MIPS32 Release 1"
918 depends on SYS_HAS_CPU_MIPS32_R1
920 select CPU_HAS_PREFETCH
921 select CPU_SUPPORTS_32BIT_KERNEL
922 select CPU_SUPPORTS_HIGHMEM
924 Choose this option to build a kernel for release 1 or later of the
925 MIPS32 architecture. Most modern embedded systems with a 32-bit
926 MIPS processor are based on a MIPS32 processor. If you know the
927 specific type of processor in your system, choose those that one
928 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
929 Release 2 of the MIPS32 architecture is available since several
930 years so chances are you even have a MIPS32 Release 2 processor
931 in which case you should choose CPU_MIPS32_R2 instead for better
935 bool "MIPS32 Release 2"
936 depends on SYS_HAS_CPU_MIPS32_R2
938 select CPU_HAS_PREFETCH
939 select CPU_SUPPORTS_32BIT_KERNEL
940 select CPU_SUPPORTS_HIGHMEM
942 Choose this option to build a kernel for release 2 or later of the
943 MIPS32 architecture. Most modern embedded systems with a 32-bit
944 MIPS processor are based on a MIPS32 processor. If you know the
945 specific type of processor in your system, choose those that one
946 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
949 bool "MIPS64 Release 1"
950 depends on SYS_HAS_CPU_MIPS64_R1
952 select CPU_HAS_PREFETCH
953 select CPU_SUPPORTS_32BIT_KERNEL
954 select CPU_SUPPORTS_64BIT_KERNEL
955 select CPU_SUPPORTS_HIGHMEM
957 Choose this option to build a kernel for release 1 or later of the
958 MIPS64 architecture. Many modern embedded systems with a 64-bit
959 MIPS processor are based on a MIPS64 processor. If you know the
960 specific type of processor in your system, choose those that one
961 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
962 Release 2 of the MIPS64 architecture is available since several
963 years so chances are you even have a MIPS64 Release 2 processor
964 in which case you should choose CPU_MIPS64_R2 instead for better
968 bool "MIPS64 Release 2"
969 depends on SYS_HAS_CPU_MIPS64_R2
971 select CPU_HAS_PREFETCH
972 select CPU_SUPPORTS_32BIT_KERNEL
973 select CPU_SUPPORTS_64BIT_KERNEL
974 select CPU_SUPPORTS_HIGHMEM
976 Choose this option to build a kernel for release 2 or later of the
977 MIPS64 architecture. Many modern embedded systems with a 64-bit
978 MIPS processor are based on a MIPS64 processor. If you know the
979 specific type of processor in your system, choose those that one
980 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
984 depends on SYS_HAS_CPU_R3000
986 select CPU_SUPPORTS_32BIT_KERNEL
987 select CPU_SUPPORTS_HIGHMEM
989 Please make sure to pick the right CPU type. Linux/MIPS is not
990 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
991 *not* work on R4000 machines and vice versa. However, since most
992 of the supported machines have an R4000 (or similar) CPU, R4x00
993 might be a safe bet. If the resulting kernel does not work,
994 try to recompile with R3000.
998 depends on SYS_HAS_CPU_TX39XX
999 select CPU_SUPPORTS_32BIT_KERNEL
1003 depends on SYS_HAS_CPU_VR41XX
1004 select CPU_SUPPORTS_32BIT_KERNEL
1005 select CPU_SUPPORTS_64BIT_KERNEL
1007 The options selects support for the NEC VR4100 series of processors.
1008 Only choose this option if you have one of these processors as a
1009 kernel built with this option will not run on any other type of
1010 processor or vice versa.
1014 depends on SYS_HAS_CPU_R4300
1016 select CPU_SUPPORTS_32BIT_KERNEL
1017 select CPU_SUPPORTS_64BIT_KERNEL
1019 MIPS Technologies R4300-series processors.
1023 depends on SYS_HAS_CPU_R4X00
1025 select CPU_SUPPORTS_32BIT_KERNEL
1026 select CPU_SUPPORTS_64BIT_KERNEL
1028 MIPS Technologies R4000-series processors other than 4300, including
1029 the R4000, R4400, R4600, and 4700.
1033 depends on SYS_HAS_CPU_TX49XX
1035 select CPU_HAS_PREFETCH
1036 select CPU_SUPPORTS_32BIT_KERNEL
1037 select CPU_SUPPORTS_64BIT_KERNEL
1041 depends on SYS_HAS_CPU_R5000
1043 select CPU_SUPPORTS_32BIT_KERNEL
1044 select CPU_SUPPORTS_64BIT_KERNEL
1046 MIPS Technologies R5000-series processors other than the Nevada.
1050 depends on SYS_HAS_CPU_R5432
1052 select CPU_SUPPORTS_32BIT_KERNEL
1053 select CPU_SUPPORTS_64BIT_KERNEL
1057 depends on EXPERIMENTAL
1059 depends on SYS_HAS_CPU_R6000
1060 select CPU_SUPPORTS_32BIT_KERNEL
1062 MIPS Technologies R6000 and R6000A series processors. Note these
1063 processors are extremely rare and the support for them is incomplete.
1067 depends on SYS_HAS_CPU_NEVADA
1069 select CPU_SUPPORTS_32BIT_KERNEL
1070 select CPU_SUPPORTS_64BIT_KERNEL
1072 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1076 depends on EXPERIMENTAL
1077 depends on SYS_HAS_CPU_R8000
1079 select CPU_HAS_PREFETCH
1080 select CPU_SUPPORTS_64BIT_KERNEL
1082 MIPS Technologies R8000 processors. Note these processors are
1083 uncommon and the support for them is incomplete.
1087 depends on SYS_HAS_CPU_R10000
1089 select CPU_HAS_PREFETCH
1090 select CPU_SUPPORTS_32BIT_KERNEL
1091 select CPU_SUPPORTS_64BIT_KERNEL
1092 select CPU_SUPPORTS_HIGHMEM
1094 MIPS Technologies R10000-series processors.
1098 depends on SYS_HAS_CPU_RM7000
1100 select CPU_HAS_PREFETCH
1101 select CPU_SUPPORTS_32BIT_KERNEL
1102 select CPU_SUPPORTS_64BIT_KERNEL
1103 select CPU_SUPPORTS_HIGHMEM
1107 depends on SYS_HAS_CPU_RM9000
1109 select CPU_HAS_PREFETCH
1110 select CPU_SUPPORTS_32BIT_KERNEL
1111 select CPU_SUPPORTS_64BIT_KERNEL
1112 select CPU_SUPPORTS_HIGHMEM
1113 select WEAK_ORDERING
1117 depends on SYS_HAS_CPU_SB1
1119 select CPU_SUPPORTS_32BIT_KERNEL
1120 select CPU_SUPPORTS_64BIT_KERNEL
1121 select CPU_SUPPORTS_HIGHMEM
1122 select WEAK_ORDERING
1126 config SYS_HAS_CPU_MIPS32_R1
1129 config SYS_HAS_CPU_MIPS32_R2
1132 config SYS_HAS_CPU_MIPS64_R1
1135 config SYS_HAS_CPU_MIPS64_R2
1138 config SYS_HAS_CPU_R3000
1141 config SYS_HAS_CPU_TX39XX
1144 config SYS_HAS_CPU_VR41XX
1147 config SYS_HAS_CPU_R4300
1150 config SYS_HAS_CPU_R4X00
1153 config SYS_HAS_CPU_TX49XX
1156 config SYS_HAS_CPU_R5000
1159 config SYS_HAS_CPU_R5432
1162 config SYS_HAS_CPU_R6000
1165 config SYS_HAS_CPU_NEVADA
1168 config SYS_HAS_CPU_R8000
1171 config SYS_HAS_CPU_R10000
1174 config SYS_HAS_CPU_RM7000
1177 config SYS_HAS_CPU_RM9000
1180 config SYS_HAS_CPU_SB1
1183 config WEAK_ORDERING
1188 # These two indicate any level of the MIPS32 and MIPS64 architecture
1192 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1196 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1199 # These two indicate the revision of the architecture, either Release 1 or Release 2
1203 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1207 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2
1209 config SYS_SUPPORTS_32BIT_KERNEL
1211 config SYS_SUPPORTS_64BIT_KERNEL
1213 config CPU_SUPPORTS_32BIT_KERNEL
1215 config CPU_SUPPORTS_64BIT_KERNEL
1222 prompt "Kernel code model"
1224 You should only select this option if you have a workload that
1225 actually benefits from 64-bit processing or if your machine has
1226 large memory. You will only be presented a single option in this
1227 menu if your system does not support both 32-bit and 64-bit kernels.
1230 bool "32-bit kernel"
1231 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1234 Select this option if you want to build a 32-bit kernel.
1236 bool "64-bit kernel"
1237 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1239 Select this option if you want to build a 64-bit kernel.
1244 prompt "Kernel page size"
1245 default PAGE_SIZE_4KB
1247 config PAGE_SIZE_4KB
1250 This option select the standard 4kB Linux page size. On some
1251 R3000-family processors this is the only available page size. Using
1252 4kB page size will minimize memory consumption and is therefore
1253 recommended for low memory systems.
1255 config PAGE_SIZE_8KB
1257 depends on EXPERIMENTAL && CPU_R8000
1259 Using 8kB page size will result in higher performance kernel at
1260 the price of higher memory consumption. This option is available
1261 only on the R8000 processor. Not that at the time of this writing
1262 this option is still high experimental; there are also issues with
1263 compatibility of user applications.
1265 config PAGE_SIZE_16KB
1267 depends on !CPU_R3000 && !CPU_TX39XX
1269 Using 16kB page size will result in higher performance kernel at
1270 the price of higher memory consumption. This option is available on
1271 all non-R3000 family processors. Note that you will need a suitable
1272 Linux distribution to support this.
1274 config PAGE_SIZE_64KB
1276 depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
1278 Using 64kB page size will result in higher performance kernel at
1279 the price of higher memory consumption. This option is available on
1280 all non-R3000 family processor. Not that at the time of this
1281 writing this option is still high experimental.
1288 config IP22_CPU_SCACHE
1293 # Support for a MIPS32 / MIPS64 style S-caches
1295 config MIPS_CPU_SCACHE
1299 config R5000_CPU_SCACHE
1303 config RM7000_CPU_SCACHE
1307 config SIBYTE_DMA_PAGEOPS
1308 bool "Use DMA to clear/copy pages"
1311 Instead of using the CPU to zero and copy pages, use a Data Mover
1312 channel. These DMA channels are otherwise unused by the standard
1313 SiByte Linux port. Seems to give a small performance benefit.
1315 config CPU_HAS_PREFETCH
1319 prompt "MIPS MT options"
1321 config MIPS_MT_DISABLED
1322 bool "Disable multithreading support."
1324 Use this option if your workload can't take advantage of
1325 MIPS hardware multithreading support. On systems that don't have
1326 the option of an MT-enabled processor this option will be the only
1327 option in this menu.
1330 bool "Use 1 TC on each available VPE for SMP"
1331 depends on SYS_SUPPORTS_MULTITHREADING
1332 select CPU_MIPSR2_IRQ_VI
1333 select CPU_MIPSR2_IRQ_EI
1334 select CPU_MIPSR2_SRS
1336 select NR_CPUS_DEFAULT_2
1338 select SYS_SUPPORTS_SMP
1340 This is a kernel model which is also known a VSMP or lately
1341 has been marketesed into SMVP.
1344 bool "SMTC: Use all TCs on all VPEs for SMP"
1345 depends on CPU_MIPS32_R2
1346 #depends on CPU_MIPS64_R2 # once there is hardware ...
1347 depends on SYS_SUPPORTS_MULTITHREADING
1348 select CPU_MIPSR2_IRQ_VI
1349 select CPU_MIPSR2_IRQ_EI
1350 select CPU_MIPSR2_SRS
1352 select NR_CPUS_DEFAULT_8
1354 select SYS_SUPPORTS_SMP
1356 This is a kernel model which is known a SMTC or lately has been
1357 marketesed into SMVP.
1359 config MIPS_VPE_LOADER
1360 bool "VPE loader support."
1361 depends on SYS_SUPPORTS_MULTITHREADING
1362 select CPU_MIPSR2_IRQ_VI
1363 select CPU_MIPSR2_IRQ_EI
1364 select CPU_MIPSR2_SRS
1367 Includes a loader for loading an elf relocatable object
1368 onto another VPE and running it.
1375 config SYS_SUPPORTS_MULTITHREADING
1378 config MIPS_MT_FPAFF
1379 bool "Dynamic FPU affinity for FP-intensive threads"
1383 config MIPS_MT_SMTC_INSTANT_REPLAY
1384 bool "Low-latency Dispatch of Deferred SMTC IPIs"
1385 depends on MIPS_MT_SMTC && !PREEMPT
1388 SMTC pseudo-interrupts between TCs are deferred and queued
1389 if the target TC is interrupt-inhibited (IXMT). In the first
1390 SMTC prototypes, these queued IPIs were serviced on return
1391 to user mode, or on entry into the kernel idle loop. The
1392 INSTANT_REPLAY option dispatches them as part of local_irq_restore()
1393 processing, which adds runtime overhead (hence the option to turn
1394 it off), but ensures that IPIs are handled promptly even under
1395 heavy I/O interrupt load.
1397 config MIPS_VPE_LOADER_TOM
1398 bool "Load VPE program into memory hidden from linux"
1399 depends on MIPS_VPE_LOADER
1402 The loader can use memory that is present but has been hidden from
1403 Linux using the kernel command line option "mem=xxMB". It's up to
1404 you to ensure the amount you put in the option and the space your
1405 program requires is less or equal to the amount physically present.
1407 # this should possibly be in drivers/char, but it is rather cpu related. Hmmm
1408 config MIPS_VPE_APSP_API
1409 bool "Enable support for AP/SP API (RTLX)"
1410 depends on MIPS_VPE_LOADER
1413 config MIPS_APSP_KSPD
1415 depends on MIPS_VPE_APSP_API
1418 KSPD is a kernel daemon that accepts syscall requests from the SP
1419 side, actions them and returns the results. It also handles the
1420 "exit" syscall notifying other kernel modules the SP program is
1421 exiting. You probably want to say yes here.
1423 config SB1_PASS_1_WORKAROUNDS
1425 depends on CPU_SB1_PASS_1
1428 config SB1_PASS_2_WORKAROUNDS
1430 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
1433 config SB1_PASS_2_1_WORKAROUNDS
1435 depends on CPU_SB1 && CPU_SB1_PASS_2
1438 config 64BIT_PHYS_ADDR
1439 bool "Support for 64-bit physical address space"
1440 depends on (CPU_R4X00 || CPU_R5000 || CPU_RM7000 || CPU_RM9000 || CPU_R10000 || CPU_SB1 || CPU_MIPS32 || CPU_MIPS64) && 32BIT
1445 config CPU_HAS_SMARTMIPS
1446 depends on SYS_SUPPORTS_SMARTMIPS
1447 bool "Support for the SmartMIPS ASE"
1449 SmartMIPS is a extension of the MIPS32 architecture aimed at
1450 increased security at both hardware and software level for
1451 smartcards. Enabling this option will allow proper use of the
1452 SmartMIPS instructions by Linux applications. However a kernel with
1453 this option will not work on a MIPS core without SmartMIPS core. If
1454 you don't know you probably don't have SmartMIPS and should say N
1461 # Vectored interrupt mode is an R2 feature
1463 config CPU_MIPSR2_IRQ_VI
1467 # Extended interrupt mode is an R2 feature
1469 config CPU_MIPSR2_IRQ_EI
1473 # Shadow registers are an R2 feature
1475 config CPU_MIPSR2_SRS
1480 depends on !CPU_R3000
1484 # Use the generic interrupt handling code in kernel/irq/:
1486 config GENERIC_HARDIRQS
1490 config GENERIC_IRQ_PROBE
1498 # - Highmem only makes sense for the 32-bit kernel.
1499 # - The current highmem code will only work properly on physically indexed
1500 # caches such as R3000, SB1, R7000 or those that look like they're virtually
1501 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
1502 # moment we protect the user and offer the highmem option only on machines
1503 # where it's known to be safe. This will not offer highmem on a few systems
1504 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
1505 # indexed CPUs but we're playing safe.
1506 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
1507 # know they might have memory configurations that could make use of highmem
1511 bool "High Memory Support"
1512 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
1514 config CPU_SUPPORTS_HIGHMEM
1517 config SYS_SUPPORTS_HIGHMEM
1520 config SYS_SUPPORTS_SMARTMIPS
1523 config ARCH_FLATMEM_ENABLE
1527 config ARCH_DISCONTIGMEM_ENABLE
1529 default y if SGI_IP27
1531 Say Y to support efficient handling of discontiguous physical memory,
1532 for architectures which are either NUMA (Non-Uniform Memory Access)
1533 or have huge holes in the physical address space for other reasons.
1534 See <file:Documentation/vm/numa> for more.
1536 config ARCH_SPARSEMEM_ENABLE
1538 select SPARSEMEM_STATIC
1542 depends on SYS_SUPPORTS_NUMA
1544 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
1545 Access). This option improves performance on systems with more
1546 than two nodes; on two node systems it is generally better to
1547 leave it disabled; on single node systems disable this option
1550 config SYS_SUPPORTS_NUMA
1556 depends on NEED_MULTIPLE_NODES
1561 bool "Multi-Processing support"
1562 depends on SYS_SUPPORTS_SMP
1565 This enables support for systems with more than one CPU. If you have
1566 a system with only one CPU, like most personal computers, say N. If
1567 you have a system with more than one CPU, say Y.
1569 If you say N here, the kernel will run on single and multiprocessor
1570 machines, but will use only one CPU of a multiprocessor machine. If
1571 you say Y here, the kernel will run on many, but not all,
1572 singleprocessor machines. On a singleprocessor machine, the kernel
1573 will run faster if you say N here.
1575 People using multiprocessor machines who say Y here should also say
1576 Y to "Enhanced Real Time Clock Support", below.
1578 See also the <file:Documentation/smp.txt> and the SMP-HOWTO
1579 available at <http://www.tldp.org/docs.html#howto>.
1581 If you don't know what to do here, say N.
1583 config SYS_SUPPORTS_SMP
1586 config NR_CPUS_DEFAULT_1
1589 config NR_CPUS_DEFAULT_2
1592 config NR_CPUS_DEFAULT_4
1595 config NR_CPUS_DEFAULT_8
1598 config NR_CPUS_DEFAULT_16
1601 config NR_CPUS_DEFAULT_32
1604 config NR_CPUS_DEFAULT_64
1608 int "Maximum number of CPUs (2-64)"
1609 range 1 64 if NR_CPUS_DEFAULT_1
1611 default "1" if NR_CPUS_DEFAULT_1
1612 default "2" if NR_CPUS_DEFAULT_2
1613 default "4" if NR_CPUS_DEFAULT_4
1614 default "8" if NR_CPUS_DEFAULT_8
1615 default "16" if NR_CPUS_DEFAULT_16
1616 default "32" if NR_CPUS_DEFAULT_32
1617 default "64" if NR_CPUS_DEFAULT_64
1619 This allows you to specify the maximum number of CPUs which this
1620 kernel will support. The maximum supported value is 32 for 32-bit
1621 kernel and 64 for 64-bit kernels; the minimum value which makes
1622 sense is 1 for Qemu (useful only for kernel debugging purposes)
1623 and 2 for all others.
1625 This is purely to save memory - each supported CPU adds
1626 approximately eight kilobytes to the kernel image. For best
1627 performance should round up your number of processors to the next
1631 # Timer Interrupt Frequency Configuration
1635 prompt "Timer frequency"
1638 Allows the configuration of the timer frequency.
1641 bool "48 HZ" if SYS_SUPPORTS_48HZ
1644 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
1647 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
1650 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
1653 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
1656 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
1659 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
1663 config SYS_SUPPORTS_48HZ
1666 config SYS_SUPPORTS_100HZ
1669 config SYS_SUPPORTS_128HZ
1672 config SYS_SUPPORTS_250HZ
1675 config SYS_SUPPORTS_256HZ
1678 config SYS_SUPPORTS_1000HZ
1681 config SYS_SUPPORTS_1024HZ
1684 config SYS_SUPPORTS_ARBIT_HZ
1686 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
1687 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
1688 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
1689 !SYS_SUPPORTS_1024HZ
1694 default 100 if HZ_100
1695 default 128 if HZ_128
1696 default 250 if HZ_250
1697 default 256 if HZ_256
1698 default 1000 if HZ_1000
1699 default 1024 if HZ_1024
1701 source "kernel/Kconfig.preempt"
1703 config MIPS_INSANE_LARGE
1704 bool "Support for large 64-bit configurations"
1705 depends on CPU_R10000 && 64BIT
1707 MIPS R10000 does support a 44 bit / 16TB address space as opposed to
1708 previous 64-bit processors which only supported 40 bit / 1TB. If you
1709 need processes of more than 1TB virtual address space, say Y here.
1710 This will result in additional memory usage, so it is not
1711 recommended for normal users.
1714 bool "Kexec system call (EXPERIMENTAL)"
1715 depends on EXPERIMENTAL
1717 kexec is a system call that implements the ability to shutdown your
1718 current kernel, and to start another kernel. It is like a reboot
1719 but it is independent of the system firmware. And like a reboot
1720 you can start any kernel with it, not just Linux.
1722 The name comes from the similiarity to the exec system call.
1724 It is an ongoing process to be certain the hardware in a machine
1725 is properly shutdown, so do not be surprised if this code does not
1726 initially work for you. It may help to enable device hotplugging
1727 support. As of this writing the exact hardware interface is
1728 strongly in flux, so no good recommendation can be made.
1731 bool "Enable seccomp to safely compute untrusted bytecode"
1732 depends on PROC_FS && BROKEN
1735 This kernel feature is useful for number crunching applications
1736 that may need to compute untrusted bytecode during their
1737 execution. By using pipes or other transports made available to
1738 the process as file descriptors supporting the read/write
1739 syscalls, it's possible to isolate those applications in
1740 their own address space using seccomp. Once seccomp is
1741 enabled via /proc/<pid>/seccomp, it cannot be disabled
1742 and the task is only allowed to execute a few safe syscalls
1743 defined by each seccomp mode.
1745 If unsure, say Y. Only embedded should say N here.
1749 config RWSEM_GENERIC_SPINLOCK
1753 config LOCKDEP_SUPPORT
1757 config STACKTRACE_SUPPORT
1761 source "init/Kconfig"
1763 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
1771 bool "Support for PCI controller"
1772 depends on HW_HAS_PCI
1774 Find out whether you have a PCI motherboard. PCI is the name of a
1775 bus system, i.e. the way the CPU talks to the other stuff inside
1776 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
1779 The PCI-HOWTO, available from
1780 <http://www.tldp.org/docs.html#howto>, contains valuable
1781 information about which PCI hardware does work under Linux and which
1788 source "drivers/pci/Kconfig"
1791 # ISA support is now enabled via select. Too many systems still have the one
1792 # or other ISA chip on the board that users don't know about so don't expect
1793 # users to choose the right thing ...
1800 depends on HW_HAS_EISA
1802 select GENERIC_ISA_DMA
1804 The Extended Industry Standard Architecture (EISA) bus was
1805 developed as an open alternative to the IBM MicroChannel bus.
1807 The EISA bus provided some of the features of the IBM MicroChannel
1808 bus while maintaining backward compatibility with cards made for
1809 the older ISA bus. The EISA bus saw limited use between 1988 and
1810 1995 when it was made obsolete by the PCI bus.
1812 Say Y here if you are building a kernel for an EISA-based machine.
1816 source "drivers/eisa/Kconfig"
1819 bool "TURBOchannel support"
1820 depends on MACH_DECSTATION
1822 TurboChannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
1823 processors. Documentation on writing device drivers for TurboChannel
1825 <http://www.cs.arizona.edu/computer.help/policy/DIGITAL_unix/AA-PS3HD-TET1_html/TITLE.html>.
1828 # bool "Access.Bus support"
1838 source "drivers/pcmcia/Kconfig"
1840 source "drivers/pci/hotplug/Kconfig"
1844 menu "Executable file formats"
1846 source "fs/Kconfig.binfmt"
1852 bool "Use 64-bit ELF format for building"
1855 A 64-bit kernel is usually built using the 64-bit ELF binary object
1856 format as it's one that allows arbitrary 64-bit constructs. For
1857 kernels that are loaded within the KSEG compatibility segments the
1858 32-bit ELF format can optionally be used resulting in a somewhat
1859 smaller binary, but this option is not explicitly supported by the
1860 toolchain and since binutils 2.14 it does not even work at all.
1862 Say Y to use the 64-bit format or N to use the 32-bit one.
1867 bool "Include IRIX binary compatibility"
1868 depends on CPU_BIG_ENDIAN && 32BIT && BROKEN
1870 config MIPS32_COMPAT
1871 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
1874 Select this option if you want Linux/MIPS 32-bit binary
1875 compatibility. Since all software available for Linux/MIPS is
1876 currently 32-bit you should say Y here.
1880 depends on MIPS32_COMPAT
1883 config SYSVIPC_COMPAT
1885 depends on COMPAT && SYSVIPC
1889 bool "Kernel support for o32 binaries"
1890 depends on MIPS32_COMPAT
1892 Select this option if you want to run o32 binaries. These are pure
1893 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
1894 existing binaries are in this format.
1899 bool "Kernel support for n32 binaries"
1900 depends on MIPS32_COMPAT
1902 Select this option if you want to run n32 binaries. These are
1903 64-bit binaries using 32-bit quantities for addressing and certain
1904 data that would normally be 64-bit. They are used in special
1911 default y if MIPS32_O32 || MIPS32_N32
1915 menu "Power management options"
1917 source "kernel/power/Kconfig"
1921 source "net/Kconfig"
1923 source "drivers/Kconfig"
1927 source "arch/mips/oprofile/Kconfig"
1929 source "arch/mips/Kconfig.debug"
1931 source "security/Kconfig"
1933 source "crypto/Kconfig"
1935 source "lib/Kconfig"