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 "Galileo EV64120 Evaluation board (EXPERIMENTAL)"
93 depends on EXPERIMENTAL
94 select DMA_NONCOHERENT
96 select PCI_GT64XXX_PCI0
97 select SYS_HAS_CPU_R5000
98 select SYS_SUPPORTS_32BIT_KERNEL
99 select SYS_SUPPORTS_64BIT_KERNEL
100 select SYS_SUPPORTS_BIG_ENDIAN
101 select SYS_SUPPORTS_KGDB
103 This is an evaluation board based on the Galileo GT-64120
104 single-chip system controller that contains a MIPS R5000 compatible
105 core running at 75/100MHz. Their website is located at
106 <http://www.marvell.com/>. Say Y here if you wish to build a
107 kernel for this platform.
110 bool "Jazz family of machines"
113 select ARCH_MAY_HAVE_PC_FDC
114 select GENERIC_ISA_DMA
118 select SYS_HAS_CPU_R4X00
119 select SYS_SUPPORTS_32BIT_KERNEL
120 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
121 select SYS_SUPPORTS_100HZ
122 select GENERIC_HARDIRQS_NO__DO_IRQ
124 This a family of machines based on the MIPS R4030 chipset which was
125 used by several vendors to build RISC/os and Windows NT workstations.
126 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millenium and
127 Olivetti M700-10 workstations.
130 bool "LASAT Networks platforms"
131 select DMA_NONCOHERENT
132 select SYS_HAS_EARLY_PRINTK
134 select PCI_GT64XXX_PCI0
136 select R5000_CPU_SCACHE
137 select SYS_HAS_CPU_R5000
138 select SYS_SUPPORTS_32BIT_KERNEL
139 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
140 select SYS_SUPPORTS_LITTLE_ENDIAN
141 select GENERIC_HARDIRQS_NO__DO_IRQ
144 bool "MIPS Atlas board"
146 select DMA_NONCOHERENT
147 select SYS_HAS_EARLY_PRINTK
150 select MIPS_BOARDS_GEN
152 select PCI_GT64XXX_PCI0
154 select RM7000_CPU_SCACHE
156 select SYS_HAS_CPU_MIPS32_R1
157 select SYS_HAS_CPU_MIPS32_R2
158 select SYS_HAS_CPU_MIPS64_R1
159 select SYS_HAS_CPU_NEVADA
160 select SYS_HAS_CPU_RM7000
161 select SYS_SUPPORTS_32BIT_KERNEL
162 select SYS_SUPPORTS_64BIT_KERNEL
163 select SYS_SUPPORTS_BIG_ENDIAN
164 select SYS_SUPPORTS_LITTLE_ENDIAN
165 select SYS_SUPPORTS_MULTITHREADING if EXPERIMENTAL
166 select SYS_SUPPORTS_SMARTMIPS
167 select GENERIC_HARDIRQS_NO__DO_IRQ
169 This enables support for the MIPS Technologies Atlas evaluation
173 bool "MIPS Malta board"
174 select ARCH_MAY_HAVE_PC_FDC
176 select HAVE_STD_PC_SERIAL_PORT
177 select DMA_NONCOHERENT
178 select GENERIC_ISA_DMA
182 select MIPS_BOARDS_GEN
184 select MIPS_CPU_SCACHE
185 select PCI_GT64XXX_PCI0
188 select SYS_HAS_CPU_MIPS32_R1
189 select SYS_HAS_CPU_MIPS32_R2
190 select SYS_HAS_CPU_MIPS64_R1
191 select SYS_HAS_CPU_NEVADA
192 select SYS_HAS_CPU_RM7000
193 select SYS_HAS_EARLY_PRINTK
194 select SYS_SUPPORTS_32BIT_KERNEL
195 select SYS_SUPPORTS_64BIT_KERNEL
196 select SYS_SUPPORTS_BIG_ENDIAN
197 select SYS_SUPPORTS_LITTLE_ENDIAN
198 select SYS_SUPPORTS_MULTITHREADING
199 select SYS_SUPPORTS_SMARTMIPS
201 This enables support for the MIPS Technologies Malta evaluation
205 bool "MIPS SEAD board (EXPERIMENTAL)"
206 depends on EXPERIMENTAL
208 select DMA_NONCOHERENT
209 select SYS_HAS_EARLY_PRINTK
210 select MIPS_BOARDS_GEN
211 select SYS_HAS_CPU_MIPS32_R1
212 select SYS_HAS_CPU_MIPS32_R2
213 select SYS_HAS_CPU_MIPS64_R1
214 select SYS_SUPPORTS_32BIT_KERNEL
215 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
216 select SYS_SUPPORTS_BIG_ENDIAN
217 select SYS_SUPPORTS_LITTLE_ENDIAN
218 select SYS_SUPPORTS_SMARTMIPS
220 This enables support for the MIPS Technologies SEAD evaluation
224 bool "Wind River PPMC board"
227 select DMA_NONCOHERENT
229 select PCI_GT64XXX_PCI0
231 select SYS_HAS_CPU_MIPS32_R1
232 select SYS_HAS_CPU_MIPS32_R2
233 select SYS_HAS_CPU_MIPS64_R1
234 select SYS_HAS_CPU_NEVADA
235 select SYS_HAS_CPU_RM7000
236 select SYS_SUPPORTS_32BIT_KERNEL
237 select SYS_SUPPORTS_64BIT_KERNEL
238 select SYS_SUPPORTS_BIG_ENDIAN
239 select SYS_SUPPORTS_LITTLE_ENDIAN
241 This enables support for the Wind River MIPS32 4KC PPMC evaluation
242 board, which is based on GT64120 bridge chip.
245 bool 'MIPS simulator (MIPSsim)'
246 select DMA_NONCOHERENT
247 select SYS_HAS_EARLY_PRINTK
249 select SYS_HAS_CPU_MIPS32_R1
250 select SYS_HAS_CPU_MIPS32_R2
251 select SYS_HAS_EARLY_PRINTK
252 select SYS_SUPPORTS_32BIT_KERNEL
253 select SYS_SUPPORTS_BIG_ENDIAN
254 select SYS_SUPPORTS_MULTITHREADING
255 select SYS_SUPPORTS_LITTLE_ENDIAN
257 This option enables support for MIPS Technologies MIPSsim software
260 config MOMENCO_OCELOT
261 bool "Momentum Ocelot board"
262 select DMA_NONCOHERENT
266 select PCI_GT64XXX_PCI0
267 select RM7000_CPU_SCACHE
269 select SYS_HAS_CPU_RM7000
270 select SYS_SUPPORTS_32BIT_KERNEL
271 select SYS_SUPPORTS_64BIT_KERNEL
272 select SYS_SUPPORTS_BIG_ENDIAN
273 select SYS_SUPPORTS_KGDB
275 The Ocelot is a MIPS-based Single Board Computer (SBC) made by
276 Momentum Computer <http://www.momenco.com/>.
278 config MOMENCO_OCELOT_3
279 bool "Momentum Ocelot-3 board"
281 select DMA_NONCOHERENT
287 select RM7000_CPU_SCACHE
289 select SYS_HAS_CPU_RM9000
290 select SYS_SUPPORTS_32BIT_KERNEL
291 select SYS_SUPPORTS_64BIT_KERNEL
292 select SYS_SUPPORTS_BIG_ENDIAN
294 The Ocelot-3 is based off Discovery III System Controller and
295 PMC-Sierra Rm79000 core.
297 config MOMENCO_OCELOT_C
298 bool "Momentum Ocelot-C board"
299 select DMA_NONCOHERENT
304 select RM7000_CPU_SCACHE
306 select SYS_HAS_CPU_RM7000
307 select SYS_SUPPORTS_32BIT_KERNEL
308 select SYS_SUPPORTS_64BIT_KERNEL
309 select SYS_SUPPORTS_BIG_ENDIAN
310 select GENERIC_HARDIRQS_NO__DO_IRQ
312 The Ocelot is a MIPS-based Single Board Computer (SBC) made by
313 Momentum Computer <http://www.momenco.com/>.
316 bool "Philips PNX8550 based JBS board"
318 select SYS_SUPPORTS_LITTLE_ENDIAN
320 config PNX8550_STB810
321 bool "Philips PNX8550 based STB810 board"
323 select SYS_SUPPORTS_LITTLE_ENDIAN
326 bool "NEC DDB Vrc-5477"
327 select DDB5XXX_COMMON
328 select DMA_NONCOHERENT
332 select SYS_HAS_CPU_R5432
333 select SYS_SUPPORTS_32BIT_KERNEL
334 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
335 select SYS_SUPPORTS_KGDB
336 select SYS_SUPPORTS_KGDB
337 select SYS_SUPPORTS_LITTLE_ENDIAN
339 This enables support for the R5432-based NEC DDB Vrc-5477,
340 or Rockhopper/SolutionGear boards with R5432/R5500 CPUs.
342 Features : kernel debugging, serial terminal, NFS root fs, on-board
343 ether port USB, AC97, PCI, etc.
346 bool "NEC VR4100 series based machines"
347 select SYS_HAS_CPU_VR41XX
348 select GENERIC_HARDIRQS_NO__DO_IRQ
351 bool "PMC-Sierra Yosemite eval board"
358 select SYS_HAS_CPU_RM9000
359 select SYS_HAS_EARLY_PRINTK
360 select SYS_SUPPORTS_32BIT_KERNEL
361 select SYS_SUPPORTS_64BIT_KERNEL
362 select SYS_SUPPORTS_BIG_ENDIAN
363 select SYS_SUPPORTS_HIGHMEM
364 select SYS_SUPPORTS_KGDB
365 select SYS_SUPPORTS_SMP
367 Yosemite is an evaluation board for the RM9000x2 processor
368 manufactured by PMC-Sierra.
373 select GENERIC_ISA_DMA
374 select HAVE_STD_PC_SERIAL_PORT
379 select SYS_HAS_CPU_MIPS32_R1
380 select SYS_SUPPORTS_32BIT_KERNEL
381 select SYS_SUPPORTS_BIG_ENDIAN
382 select SYS_SUPPORTS_LITTLE_ENDIAN
383 select ARCH_SPARSEMEM_ENABLE
384 select GENERIC_HARDIRQS_NO__DO_IRQ
385 select NR_CPUS_DEFAULT_1
386 select SYS_SUPPORTS_SMP
388 Qemu is a software emulator which among other architectures also
389 can simulate a MIPS32 4Kc system. This patch adds support for the
390 system architecture that currently is being simulated by Qemu. It
391 will eventually be removed again when Qemu has the capability to
392 simulate actual MIPS hardware platforms. More information on Qemu
393 can be found at http://www.linux-mips.org/wiki/Qemu.
396 bool "NEC EMMA2RH Mark-eins"
397 select DMA_NONCOHERENT
401 select SYS_SUPPORTS_32BIT_KERNEL
402 select SYS_SUPPORTS_BIG_ENDIAN
403 select SYS_SUPPORTS_LITTLE_ENDIAN
404 select SYS_HAS_CPU_R5000
406 This enables support for the R5432-based NEC Mark-eins
407 boards with R5500 CPU.
410 bool "SGI IP22 (Indy/Indigo2)"
414 select DMA_NONCOHERENT
416 select IP22_CPU_SCACHE
418 select GENERIC_ISA_DMA_SUPPORT_BROKEN
420 select SYS_HAS_CPU_R4X00
421 select SYS_HAS_CPU_R5000
422 select SYS_HAS_EARLY_PRINTK
423 select SYS_SUPPORTS_32BIT_KERNEL
424 select SYS_SUPPORTS_64BIT_KERNEL
425 select SYS_SUPPORTS_BIG_ENDIAN
427 This are the SGI Indy, Challenge S and Indigo2, as well as certain
428 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
429 that runs on these, say Y here.
432 bool "SGI IP27 (Origin200/2000)"
437 select SYS_HAS_EARLY_PRINTK
439 select NR_CPUS_DEFAULT_64
441 select SYS_HAS_CPU_R10000
442 select SYS_SUPPORTS_64BIT_KERNEL
443 select SYS_SUPPORTS_BIG_ENDIAN
444 select SYS_SUPPORTS_KGDB
445 select SYS_SUPPORTS_NUMA
446 select SYS_SUPPORTS_SMP
447 select GENERIC_HARDIRQS_NO__DO_IRQ
449 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
450 workstations. To compile a Linux kernel that runs on these, say Y
454 bool "SGI IP32 (O2) (EXPERIMENTAL)"
455 depends on EXPERIMENTAL
459 select DMA_NONCOHERENT
461 select R5000_CPU_SCACHE
462 select RM7000_CPU_SCACHE
463 select SYS_HAS_CPU_R5000
464 select SYS_HAS_CPU_R10000 if BROKEN
465 select SYS_HAS_CPU_RM7000
466 select SYS_HAS_CPU_NEVADA
467 select SYS_SUPPORTS_64BIT_KERNEL
468 select SYS_SUPPORTS_BIG_ENDIAN
470 If you want this kernel to run on SGI O2 workstation, say Y here.
473 bool "Sibyte BCM91480B-BigSur"
476 select NR_CPUS_DEFAULT_4
478 select SIBYTE_BCM1x80
480 select SYS_HAS_CPU_SB1
481 select SYS_SUPPORTS_BIG_ENDIAN
482 select SYS_SUPPORTS_LITTLE_ENDIAN
485 bool "Sibyte BCM91250A-SWARM"
488 select NR_CPUS_DEFAULT_2
491 select SYS_HAS_CPU_SB1
492 select SYS_SUPPORTS_BIG_ENDIAN
493 select SYS_SUPPORTS_HIGHMEM
494 select SYS_SUPPORTS_KGDB
495 select SYS_SUPPORTS_LITTLE_ENDIAN
497 config SIBYTE_SENTOSA
498 bool "Sibyte BCM91250E-Sentosa"
499 depends on EXPERIMENTAL
502 select NR_CPUS_DEFAULT_2
505 select SYS_HAS_CPU_SB1
506 select SYS_SUPPORTS_BIG_ENDIAN
507 select SYS_SUPPORTS_LITTLE_ENDIAN
510 bool "Sibyte BCM91125E-Rhone"
511 depends on EXPERIMENTAL
514 select SIBYTE_BCM1125H
516 select SYS_HAS_CPU_SB1
517 select SYS_SUPPORTS_BIG_ENDIAN
518 select SYS_SUPPORTS_LITTLE_ENDIAN
521 bool "Sibyte BCM91120x-Carmel"
522 depends on EXPERIMENTAL
525 select SIBYTE_BCM1120
527 select SYS_HAS_CPU_SB1
528 select SYS_SUPPORTS_BIG_ENDIAN
529 select SYS_SUPPORTS_LITTLE_ENDIAN
531 config SIBYTE_PTSWARM
532 bool "Sibyte BCM91250PT-PTSWARM"
533 depends on EXPERIMENTAL
536 select NR_CPUS_DEFAULT_2
539 select SYS_HAS_CPU_SB1
540 select SYS_SUPPORTS_BIG_ENDIAN
541 select SYS_SUPPORTS_HIGHMEM
542 select SYS_SUPPORTS_LITTLE_ENDIAN
544 config SIBYTE_LITTLESUR
545 bool "Sibyte BCM91250C2-LittleSur"
546 depends on EXPERIMENTAL
549 select NR_CPUS_DEFAULT_2
552 select SYS_HAS_CPU_SB1
553 select SYS_SUPPORTS_BIG_ENDIAN
554 select SYS_SUPPORTS_HIGHMEM
555 select SYS_SUPPORTS_LITTLE_ENDIAN
558 bool "Sibyte BCM91120C-CRhine"
559 depends on EXPERIMENTAL
562 select SIBYTE_BCM1120
564 select SYS_HAS_CPU_SB1
565 select SYS_SUPPORTS_BIG_ENDIAN
566 select SYS_SUPPORTS_LITTLE_ENDIAN
569 bool "Sibyte BCM91125C-CRhone"
570 depends on EXPERIMENTAL
573 select SIBYTE_BCM1125
575 select SYS_HAS_CPU_SB1
576 select SYS_SUPPORTS_BIG_ENDIAN
577 select SYS_SUPPORTS_HIGHMEM
578 select SYS_SUPPORTS_LITTLE_ENDIAN
581 bool "SNI RM200/300/400"
582 select ARC if CPU_LITTLE_ENDIAN
583 select ARC32 if CPU_LITTLE_ENDIAN
584 select ARCH_MAY_HAVE_PC_FDC
586 select DMA_NONCOHERENT
587 select GENERIC_ISA_DMA
594 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
595 select SYS_HAS_CPU_R4X00
596 select SYS_HAS_CPU_R5000
597 select SYS_HAS_CPU_R10000
598 select R5000_CPU_SCACHE
599 select SYS_HAS_EARLY_PRINTK
600 select SYS_SUPPORTS_32BIT_KERNEL
601 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
602 select SYS_SUPPORTS_BIG_ENDIAN
603 select SYS_SUPPORTS_HIGHMEM
604 select SYS_SUPPORTS_LITTLE_ENDIAN
606 The SNI RM200/300/400 are MIPS-based machines manufactured by
607 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
608 Technology and now in turn merged with Fujitsu. Say Y here to
609 support this machine type.
611 config TOSHIBA_JMR3927
612 bool "Toshiba JMR-TX3927 board"
613 select DMA_NONCOHERENT
617 select SYS_HAS_CPU_TX39XX
618 select SYS_SUPPORTS_32BIT_KERNEL
619 select SYS_SUPPORTS_LITTLE_ENDIAN
620 select SYS_SUPPORTS_BIG_ENDIAN
621 select GENERIC_HARDIRQS_NO__DO_IRQ
623 config TOSHIBA_RBTX4927
624 bool "Toshiba TBTX49[23]7 board"
625 select DMA_NONCOHERENT
626 select HAS_TXX9_SERIAL
630 select SYS_HAS_CPU_TX49XX
631 select SYS_SUPPORTS_32BIT_KERNEL
632 select SYS_SUPPORTS_64BIT_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 TX4927 processor. Say Y here to
639 support this machine type
641 config TOSHIBA_RBTX4938
642 bool "Toshiba RBTX4938 board"
643 select HAVE_STD_PC_SERIAL_PORT
644 select DMA_NONCOHERENT
645 select GENERIC_ISA_DMA
646 select HAS_TXX9_SERIAL
650 select SYS_HAS_CPU_TX49XX
651 select SYS_SUPPORTS_32BIT_KERNEL
652 select SYS_SUPPORTS_LITTLE_ENDIAN
653 select SYS_SUPPORTS_BIG_ENDIAN
654 select SYS_SUPPORTS_KGDB
655 select GENERIC_HARDIRQS_NO__DO_IRQ
657 This Toshiba board is based on the TX4938 processor. Say Y here to
658 support this machine type
662 source "arch/mips/au1000/Kconfig"
663 source "arch/mips/ddb5xxx/Kconfig"
664 source "arch/mips/gt64120/ev64120/Kconfig"
665 source "arch/mips/jazz/Kconfig"
666 source "arch/mips/lasat/Kconfig"
667 source "arch/mips/pmc-sierra/Kconfig"
668 source "arch/mips/sgi-ip27/Kconfig"
669 source "arch/mips/sibyte/Kconfig"
670 source "arch/mips/tx4927/Kconfig"
671 source "arch/mips/tx4938/Kconfig"
672 source "arch/mips/vr41xx/Kconfig"
673 source "arch/mips/philips/pnx8550/common/Kconfig"
677 config RWSEM_GENERIC_SPINLOCK
681 config RWSEM_XCHGADD_ALGORITHM
684 config ARCH_HAS_ILOG2_U32
688 config ARCH_HAS_ILOG2_U64
692 config GENERIC_FIND_NEXT_BIT
696 config GENERIC_HWEIGHT
700 config GENERIC_CALIBRATE_DELAY
708 config SCHED_NO_NO_OMIT_FRAME_POINTER
712 config GENERIC_HARDIRQS_NO__DO_IRQ
717 # Select some configuration options automatically based on user selections.
722 config ARCH_MAY_HAVE_PC_FDC
733 select DMA_NEED_PCI_MAP_STATE
735 config DMA_NONCOHERENT
737 select DMA_NEED_PCI_MAP_STATE
739 config DMA_NEED_PCI_MAP_STATE
743 bool "Early printk" if EMBEDDED && DEBUG_KERNEL
744 depends on SYS_HAS_EARLY_PRINTK
747 This option enables special console drivers which allow the kernel
748 to print messages very early in the bootup process.
750 This is useful for kernel debugging when your machine crashes very
751 early before the console code is initialized. For normal operation,
752 it is not recommended because it looks ugly on some machines and
753 doesn't cooperate with an X server. You should normally say N here,
754 unless you want to debug such a crash.
756 config SYS_HAS_EARLY_PRINTK
759 config GENERIC_ISA_DMA
775 config MIPS_DISABLE_OBSOLETE_IDE
781 config GENERIC_ISA_DMA_SUPPORT_BROKEN
789 # Endianess selection. Sufficiently obscure so many users don't know what to
790 # answer,so we try hard to limit the available choices. Also the use of a
791 # choice statement should be more obvious to the user.
794 prompt "Endianess selection"
796 Some MIPS machines can be configured for either little or big endian
797 byte order. These modes require different kernels and a different
798 Linux distribution. In general there is one preferred byteorder for a
799 particular system but some systems are just as commonly used in the
800 one or the other endianness.
802 config CPU_BIG_ENDIAN
804 depends on SYS_SUPPORTS_BIG_ENDIAN
806 config CPU_LITTLE_ENDIAN
808 depends on SYS_SUPPORTS_LITTLE_ENDIAN
813 config SYS_SUPPORTS_APM_EMULATION
816 config SYS_SUPPORTS_BIG_ENDIAN
819 config SYS_SUPPORTS_LITTLE_ENDIAN
834 config DDB5XXX_COMMON
836 select SYS_SUPPORTS_KGDB
838 config MIPS_BOARDS_GEN
841 config PCI_GT64XXX_PCI0
846 select HAS_TXX9_SERIAL
861 select DMA_NONCOHERENT
863 select SYS_HAS_CPU_MIPS32_R1
864 select SYS_HAS_EARLY_PRINTK
865 select SYS_SUPPORTS_32BIT_KERNEL
866 select GENERIC_HARDIRQS_NO__DO_IRQ
867 select SYS_SUPPORTS_KGDB
882 # Unfortunately not all GT64120 systems run the chip at the same clock.
883 # As the user for the clock rate and try to minimize the available options.
886 prompt "Galileo Chip Clock"
887 #default SYSCLK_83 if MIPS_EV64120
888 depends on MIPS_EV64120 || MOMENCO_OCELOT
889 default SYSCLK_83 if MIPS_EV64120
890 default SYSCLK_100 if MOMENCO_OCELOT
893 bool "75" if MIPS_EV64120
896 bool "83.3" if MIPS_EV64120
899 bool "100" if MIPS_EV64120 || MOMENCO_OCELOT
909 config MIPS_L1_CACHE_SHIFT
911 default "4" if MACH_DECSTATION || SNI_RM
912 default "7" if SGI_IP27
915 config HAVE_STD_PC_SERIAL_PORT
919 bool "ARC console support"
920 depends on SGI_IP22 || (SNI_RM && CPU_LITTLE_ENDIAN)
924 depends on MACH_JAZZ || SNI_RM || SGI_IP32
929 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP32
945 bool "MIPS32 Release 1"
946 depends on SYS_HAS_CPU_MIPS32_R1
948 select CPU_HAS_PREFETCH
949 select CPU_SUPPORTS_32BIT_KERNEL
950 select CPU_SUPPORTS_HIGHMEM
952 Choose this option to build a kernel for release 1 or later of the
953 MIPS32 architecture. Most modern embedded systems with a 32-bit
954 MIPS processor are based on a MIPS32 processor. If you know the
955 specific type of processor in your system, choose those that one
956 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
957 Release 2 of the MIPS32 architecture is available since several
958 years so chances are you even have a MIPS32 Release 2 processor
959 in which case you should choose CPU_MIPS32_R2 instead for better
963 bool "MIPS32 Release 2"
964 depends on SYS_HAS_CPU_MIPS32_R2
966 select CPU_HAS_PREFETCH
967 select CPU_SUPPORTS_32BIT_KERNEL
968 select CPU_SUPPORTS_HIGHMEM
970 Choose this option to build a kernel for release 2 or later of the
971 MIPS32 architecture. Most modern embedded systems with a 32-bit
972 MIPS processor are based on a MIPS32 processor. If you know the
973 specific type of processor in your system, choose those that one
974 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
977 bool "MIPS64 Release 1"
978 depends on SYS_HAS_CPU_MIPS64_R1
980 select CPU_HAS_PREFETCH
981 select CPU_SUPPORTS_32BIT_KERNEL
982 select CPU_SUPPORTS_64BIT_KERNEL
983 select CPU_SUPPORTS_HIGHMEM
985 Choose this option to build a kernel for release 1 or later of the
986 MIPS64 architecture. Many modern embedded systems with a 64-bit
987 MIPS processor are based on a MIPS64 processor. If you know the
988 specific type of processor in your system, choose those that one
989 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
990 Release 2 of the MIPS64 architecture is available since several
991 years so chances are you even have a MIPS64 Release 2 processor
992 in which case you should choose CPU_MIPS64_R2 instead for better
996 bool "MIPS64 Release 2"
997 depends on SYS_HAS_CPU_MIPS64_R2
999 select CPU_HAS_PREFETCH
1000 select CPU_SUPPORTS_32BIT_KERNEL
1001 select CPU_SUPPORTS_64BIT_KERNEL
1002 select CPU_SUPPORTS_HIGHMEM
1004 Choose this option to build a kernel for release 2 or later of the
1005 MIPS64 architecture. Many modern embedded systems with a 64-bit
1006 MIPS processor are based on a MIPS64 processor. If you know the
1007 specific type of processor in your system, choose those that one
1008 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1012 depends on SYS_HAS_CPU_R3000
1014 select CPU_SUPPORTS_32BIT_KERNEL
1015 select CPU_SUPPORTS_HIGHMEM
1017 Please make sure to pick the right CPU type. Linux/MIPS is not
1018 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1019 *not* work on R4000 machines and vice versa. However, since most
1020 of the supported machines have an R4000 (or similar) CPU, R4x00
1021 might be a safe bet. If the resulting kernel does not work,
1022 try to recompile with R3000.
1026 depends on SYS_HAS_CPU_TX39XX
1027 select CPU_SUPPORTS_32BIT_KERNEL
1031 depends on SYS_HAS_CPU_VR41XX
1032 select CPU_SUPPORTS_32BIT_KERNEL
1033 select CPU_SUPPORTS_64BIT_KERNEL
1035 The options selects support for the NEC VR4100 series of processors.
1036 Only choose this option if you have one of these processors as a
1037 kernel built with this option will not run on any other type of
1038 processor or vice versa.
1042 depends on SYS_HAS_CPU_R4300
1044 select CPU_SUPPORTS_32BIT_KERNEL
1045 select CPU_SUPPORTS_64BIT_KERNEL
1047 MIPS Technologies R4300-series processors.
1051 depends on SYS_HAS_CPU_R4X00
1053 select CPU_SUPPORTS_32BIT_KERNEL
1054 select CPU_SUPPORTS_64BIT_KERNEL
1056 MIPS Technologies R4000-series processors other than 4300, including
1057 the R4000, R4400, R4600, and 4700.
1061 depends on SYS_HAS_CPU_TX49XX
1063 select CPU_HAS_PREFETCH
1064 select CPU_SUPPORTS_32BIT_KERNEL
1065 select CPU_SUPPORTS_64BIT_KERNEL
1069 depends on SYS_HAS_CPU_R5000
1071 select CPU_SUPPORTS_32BIT_KERNEL
1072 select CPU_SUPPORTS_64BIT_KERNEL
1074 MIPS Technologies R5000-series processors other than the Nevada.
1078 depends on SYS_HAS_CPU_R5432
1080 select CPU_SUPPORTS_32BIT_KERNEL
1081 select CPU_SUPPORTS_64BIT_KERNEL
1085 depends on EXPERIMENTAL
1087 depends on SYS_HAS_CPU_R6000
1088 select CPU_SUPPORTS_32BIT_KERNEL
1090 MIPS Technologies R6000 and R6000A series processors. Note these
1091 processors are extremely rare and the support for them is incomplete.
1095 depends on SYS_HAS_CPU_NEVADA
1097 select CPU_SUPPORTS_32BIT_KERNEL
1098 select CPU_SUPPORTS_64BIT_KERNEL
1100 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1104 depends on EXPERIMENTAL
1105 depends on SYS_HAS_CPU_R8000
1107 select CPU_HAS_PREFETCH
1108 select CPU_SUPPORTS_64BIT_KERNEL
1110 MIPS Technologies R8000 processors. Note these processors are
1111 uncommon and the support for them is incomplete.
1115 depends on SYS_HAS_CPU_R10000
1117 select CPU_HAS_PREFETCH
1118 select CPU_SUPPORTS_32BIT_KERNEL
1119 select CPU_SUPPORTS_64BIT_KERNEL
1120 select CPU_SUPPORTS_HIGHMEM
1122 MIPS Technologies R10000-series processors.
1126 depends on SYS_HAS_CPU_RM7000
1128 select CPU_HAS_PREFETCH
1129 select CPU_SUPPORTS_32BIT_KERNEL
1130 select CPU_SUPPORTS_64BIT_KERNEL
1131 select CPU_SUPPORTS_HIGHMEM
1135 depends on SYS_HAS_CPU_RM9000
1137 select CPU_HAS_PREFETCH
1138 select CPU_SUPPORTS_32BIT_KERNEL
1139 select CPU_SUPPORTS_64BIT_KERNEL
1140 select CPU_SUPPORTS_HIGHMEM
1141 select WEAK_ORDERING
1145 depends on SYS_HAS_CPU_SB1
1147 select CPU_SUPPORTS_32BIT_KERNEL
1148 select CPU_SUPPORTS_64BIT_KERNEL
1149 select CPU_SUPPORTS_HIGHMEM
1150 select WEAK_ORDERING
1154 config SYS_HAS_CPU_MIPS32_R1
1157 config SYS_HAS_CPU_MIPS32_R2
1160 config SYS_HAS_CPU_MIPS64_R1
1163 config SYS_HAS_CPU_MIPS64_R2
1166 config SYS_HAS_CPU_R3000
1169 config SYS_HAS_CPU_TX39XX
1172 config SYS_HAS_CPU_VR41XX
1175 config SYS_HAS_CPU_R4300
1178 config SYS_HAS_CPU_R4X00
1181 config SYS_HAS_CPU_TX49XX
1184 config SYS_HAS_CPU_R5000
1187 config SYS_HAS_CPU_R5432
1190 config SYS_HAS_CPU_R6000
1193 config SYS_HAS_CPU_NEVADA
1196 config SYS_HAS_CPU_R8000
1199 config SYS_HAS_CPU_R10000
1202 config SYS_HAS_CPU_RM7000
1205 config SYS_HAS_CPU_RM9000
1208 config SYS_HAS_CPU_SB1
1211 config WEAK_ORDERING
1216 # These two indicate any level of the MIPS32 and MIPS64 architecture
1220 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1224 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1227 # These two indicate the revision of the architecture, either Release 1 or Release 2
1231 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1235 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2
1237 config SYS_SUPPORTS_32BIT_KERNEL
1239 config SYS_SUPPORTS_64BIT_KERNEL
1241 config CPU_SUPPORTS_32BIT_KERNEL
1243 config CPU_SUPPORTS_64BIT_KERNEL
1250 prompt "Kernel code model"
1252 You should only select this option if you have a workload that
1253 actually benefits from 64-bit processing or if your machine has
1254 large memory. You will only be presented a single option in this
1255 menu if your system does not support both 32-bit and 64-bit kernels.
1258 bool "32-bit kernel"
1259 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1262 Select this option if you want to build a 32-bit kernel.
1264 bool "64-bit kernel"
1265 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1267 Select this option if you want to build a 64-bit kernel.
1272 prompt "Kernel page size"
1273 default PAGE_SIZE_4KB
1275 config PAGE_SIZE_4KB
1278 This option select the standard 4kB Linux page size. On some
1279 R3000-family processors this is the only available page size. Using
1280 4kB page size will minimize memory consumption and is therefore
1281 recommended for low memory systems.
1283 config PAGE_SIZE_8KB
1285 depends on EXPERIMENTAL && CPU_R8000
1287 Using 8kB page size will result in higher performance kernel at
1288 the price of higher memory consumption. This option is available
1289 only on the R8000 processor. Not that at the time of this writing
1290 this option is still high experimental; there are also issues with
1291 compatibility of user applications.
1293 config PAGE_SIZE_16KB
1295 depends on !CPU_R3000 && !CPU_TX39XX
1297 Using 16kB page size will result in higher performance kernel at
1298 the price of higher memory consumption. This option is available on
1299 all non-R3000 family processors. Note that you will need a suitable
1300 Linux distribution to support this.
1302 config PAGE_SIZE_64KB
1304 depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
1306 Using 64kB page size will result in higher performance kernel at
1307 the price of higher memory consumption. This option is available on
1308 all non-R3000 family processor. Not that at the time of this
1309 writing this option is still high experimental.
1316 config IP22_CPU_SCACHE
1321 # Support for a MIPS32 / MIPS64 style S-caches
1323 config MIPS_CPU_SCACHE
1327 config R5000_CPU_SCACHE
1331 config RM7000_CPU_SCACHE
1335 config SIBYTE_DMA_PAGEOPS
1336 bool "Use DMA to clear/copy pages"
1339 Instead of using the CPU to zero and copy pages, use a Data Mover
1340 channel. These DMA channels are otherwise unused by the standard
1341 SiByte Linux port. Seems to give a small performance benefit.
1343 config CPU_HAS_PREFETCH
1347 prompt "MIPS MT options"
1349 config MIPS_MT_DISABLED
1350 bool "Disable multithreading support."
1352 Use this option if your workload can't take advantage of
1353 MIPS hardware multithreading support. On systems that don't have
1354 the option of an MT-enabled processor this option will be the only
1355 option in this menu.
1358 bool "Use 1 TC on each available VPE for SMP"
1359 depends on SYS_SUPPORTS_MULTITHREADING
1360 select CPU_MIPSR2_IRQ_VI
1361 select CPU_MIPSR2_IRQ_EI
1362 select CPU_MIPSR2_SRS
1364 select NR_CPUS_DEFAULT_2
1366 select SYS_SUPPORTS_SMP
1368 This is a kernel model which is also known a VSMP or lately
1369 has been marketesed into SMVP.
1372 bool "SMTC: Use all TCs on all VPEs for SMP"
1373 depends on CPU_MIPS32_R2
1374 #depends on CPU_MIPS64_R2 # once there is hardware ...
1375 depends on SYS_SUPPORTS_MULTITHREADING
1376 select CPU_MIPSR2_IRQ_VI
1377 select CPU_MIPSR2_IRQ_EI
1378 select CPU_MIPSR2_SRS
1380 select NR_CPUS_DEFAULT_8
1382 select SYS_SUPPORTS_SMP
1384 This is a kernel model which is known a SMTC or lately has been
1385 marketesed into SMVP.
1387 config MIPS_VPE_LOADER
1388 bool "VPE loader support."
1389 depends on SYS_SUPPORTS_MULTITHREADING
1390 select CPU_MIPSR2_IRQ_VI
1391 select CPU_MIPSR2_IRQ_EI
1392 select CPU_MIPSR2_SRS
1395 Includes a loader for loading an elf relocatable object
1396 onto another VPE and running it.
1403 config SYS_SUPPORTS_MULTITHREADING
1406 config MIPS_MT_FPAFF
1407 bool "Dynamic FPU affinity for FP-intensive threads"
1411 config MIPS_MT_SMTC_INSTANT_REPLAY
1412 bool "Low-latency Dispatch of Deferred SMTC IPIs"
1413 depends on MIPS_MT_SMTC && !PREEMPT
1416 SMTC pseudo-interrupts between TCs are deferred and queued
1417 if the target TC is interrupt-inhibited (IXMT). In the first
1418 SMTC prototypes, these queued IPIs were serviced on return
1419 to user mode, or on entry into the kernel idle loop. The
1420 INSTANT_REPLAY option dispatches them as part of local_irq_restore()
1421 processing, which adds runtime overhead (hence the option to turn
1422 it off), but ensures that IPIs are handled promptly even under
1423 heavy I/O interrupt load.
1425 config MIPS_VPE_LOADER_TOM
1426 bool "Load VPE program into memory hidden from linux"
1427 depends on MIPS_VPE_LOADER
1430 The loader can use memory that is present but has been hidden from
1431 Linux using the kernel command line option "mem=xxMB". It's up to
1432 you to ensure the amount you put in the option and the space your
1433 program requires is less or equal to the amount physically present.
1435 # this should possibly be in drivers/char, but it is rather cpu related. Hmmm
1436 config MIPS_VPE_APSP_API
1437 bool "Enable support for AP/SP API (RTLX)"
1438 depends on MIPS_VPE_LOADER
1441 config MIPS_APSP_KSPD
1443 depends on MIPS_VPE_APSP_API
1446 KSPD is a kernel daemon that accepts syscall requests from the SP
1447 side, actions them and returns the results. It also handles the
1448 "exit" syscall notifying other kernel modules the SP program is
1449 exiting. You probably want to say yes here.
1451 config SB1_PASS_1_WORKAROUNDS
1453 depends on CPU_SB1_PASS_1
1456 config SB1_PASS_2_WORKAROUNDS
1458 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
1461 config SB1_PASS_2_1_WORKAROUNDS
1463 depends on CPU_SB1 && CPU_SB1_PASS_2
1466 config 64BIT_PHYS_ADDR
1467 bool "Support for 64-bit physical address space"
1468 depends on (CPU_R4X00 || CPU_R5000 || CPU_RM7000 || CPU_RM9000 || CPU_R10000 || CPU_SB1 || CPU_MIPS32 || CPU_MIPS64) && 32BIT
1473 config CPU_HAS_SMARTMIPS
1474 depends on SYS_SUPPORTS_SMARTMIPS
1475 bool "Support for the SmartMIPS ASE"
1477 SmartMIPS is a extension of the MIPS32 architecture aimed at
1478 increased security at both hardware and software level for
1479 smartcards. Enabling this option will allow proper use of the
1480 SmartMIPS instructions by Linux applications. However a kernel with
1481 this option will not work on a MIPS core without SmartMIPS core. If
1482 you don't know you probably don't have SmartMIPS and should say N
1489 # Vectored interrupt mode is an R2 feature
1491 config CPU_MIPSR2_IRQ_VI
1495 # Extended interrupt mode is an R2 feature
1497 config CPU_MIPSR2_IRQ_EI
1501 # Shadow registers are an R2 feature
1503 config CPU_MIPSR2_SRS
1508 depends on !CPU_R3000
1512 # Use the generic interrupt handling code in kernel/irq/:
1514 config GENERIC_HARDIRQS
1518 config GENERIC_IRQ_PROBE
1526 # - Highmem only makes sense for the 32-bit kernel.
1527 # - The current highmem code will only work properly on physically indexed
1528 # caches such as R3000, SB1, R7000 or those that look like they're virtually
1529 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
1530 # moment we protect the user and offer the highmem option only on machines
1531 # where it's known to be safe. This will not offer highmem on a few systems
1532 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
1533 # indexed CPUs but we're playing safe.
1534 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
1535 # know they might have memory configurations that could make use of highmem
1539 bool "High Memory Support"
1540 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
1542 config CPU_SUPPORTS_HIGHMEM
1545 config SYS_SUPPORTS_HIGHMEM
1548 config SYS_SUPPORTS_SMARTMIPS
1551 config ARCH_FLATMEM_ENABLE
1555 config ARCH_DISCONTIGMEM_ENABLE
1557 default y if SGI_IP27
1559 Say Y to support efficient handling of discontiguous physical memory,
1560 for architectures which are either NUMA (Non-Uniform Memory Access)
1561 or have huge holes in the physical address space for other reasons.
1562 See <file:Documentation/vm/numa> for more.
1564 config ARCH_SPARSEMEM_ENABLE
1566 select SPARSEMEM_STATIC
1570 depends on SYS_SUPPORTS_NUMA
1572 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
1573 Access). This option improves performance on systems with more
1574 than two nodes; on two node systems it is generally better to
1575 leave it disabled; on single node systems disable this option
1578 config SYS_SUPPORTS_NUMA
1584 depends on NEED_MULTIPLE_NODES
1589 bool "Multi-Processing support"
1590 depends on SYS_SUPPORTS_SMP
1593 This enables support for systems with more than one CPU. If you have
1594 a system with only one CPU, like most personal computers, say N. If
1595 you have a system with more than one CPU, say Y.
1597 If you say N here, the kernel will run on single and multiprocessor
1598 machines, but will use only one CPU of a multiprocessor machine. If
1599 you say Y here, the kernel will run on many, but not all,
1600 singleprocessor machines. On a singleprocessor machine, the kernel
1601 will run faster if you say N here.
1603 People using multiprocessor machines who say Y here should also say
1604 Y to "Enhanced Real Time Clock Support", below.
1606 See also the <file:Documentation/smp.txt> and the SMP-HOWTO
1607 available at <http://www.tldp.org/docs.html#howto>.
1609 If you don't know what to do here, say N.
1611 config SYS_SUPPORTS_SMP
1614 config NR_CPUS_DEFAULT_1
1617 config NR_CPUS_DEFAULT_2
1620 config NR_CPUS_DEFAULT_4
1623 config NR_CPUS_DEFAULT_8
1626 config NR_CPUS_DEFAULT_16
1629 config NR_CPUS_DEFAULT_32
1632 config NR_CPUS_DEFAULT_64
1636 int "Maximum number of CPUs (2-64)"
1637 range 1 64 if NR_CPUS_DEFAULT_1
1639 default "1" if NR_CPUS_DEFAULT_1
1640 default "2" if NR_CPUS_DEFAULT_2
1641 default "4" if NR_CPUS_DEFAULT_4
1642 default "8" if NR_CPUS_DEFAULT_8
1643 default "16" if NR_CPUS_DEFAULT_16
1644 default "32" if NR_CPUS_DEFAULT_32
1645 default "64" if NR_CPUS_DEFAULT_64
1647 This allows you to specify the maximum number of CPUs which this
1648 kernel will support. The maximum supported value is 32 for 32-bit
1649 kernel and 64 for 64-bit kernels; the minimum value which makes
1650 sense is 1 for Qemu (useful only for kernel debugging purposes)
1651 and 2 for all others.
1653 This is purely to save memory - each supported CPU adds
1654 approximately eight kilobytes to the kernel image. For best
1655 performance should round up your number of processors to the next
1659 # Timer Interrupt Frequency Configuration
1663 prompt "Timer frequency"
1666 Allows the configuration of the timer frequency.
1669 bool "48 HZ" if SYS_SUPPORTS_48HZ
1672 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
1675 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
1678 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
1681 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
1684 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
1687 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
1691 config SYS_SUPPORTS_48HZ
1694 config SYS_SUPPORTS_100HZ
1697 config SYS_SUPPORTS_128HZ
1700 config SYS_SUPPORTS_250HZ
1703 config SYS_SUPPORTS_256HZ
1706 config SYS_SUPPORTS_1000HZ
1709 config SYS_SUPPORTS_1024HZ
1712 config SYS_SUPPORTS_ARBIT_HZ
1714 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
1715 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
1716 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
1717 !SYS_SUPPORTS_1024HZ
1722 default 100 if HZ_100
1723 default 128 if HZ_128
1724 default 250 if HZ_250
1725 default 256 if HZ_256
1726 default 1000 if HZ_1000
1727 default 1024 if HZ_1024
1729 source "kernel/Kconfig.preempt"
1731 config MIPS_INSANE_LARGE
1732 bool "Support for large 64-bit configurations"
1733 depends on CPU_R10000 && 64BIT
1735 MIPS R10000 does support a 44 bit / 16TB address space as opposed to
1736 previous 64-bit processors which only supported 40 bit / 1TB. If you
1737 need processes of more than 1TB virtual address space, say Y here.
1738 This will result in additional memory usage, so it is not
1739 recommended for normal users.
1742 bool "Kexec system call (EXPERIMENTAL)"
1743 depends on EXPERIMENTAL
1745 kexec is a system call that implements the ability to shutdown your
1746 current kernel, and to start another kernel. It is like a reboot
1747 but it is independent of the system firmware. And like a reboot
1748 you can start any kernel with it, not just Linux.
1750 The name comes from the similiarity to the exec system call.
1752 It is an ongoing process to be certain the hardware in a machine
1753 is properly shutdown, so do not be surprised if this code does not
1754 initially work for you. It may help to enable device hotplugging
1755 support. As of this writing the exact hardware interface is
1756 strongly in flux, so no good recommendation can be made.
1759 bool "Enable seccomp to safely compute untrusted bytecode"
1760 depends on PROC_FS && BROKEN
1763 This kernel feature is useful for number crunching applications
1764 that may need to compute untrusted bytecode during their
1765 execution. By using pipes or other transports made available to
1766 the process as file descriptors supporting the read/write
1767 syscalls, it's possible to isolate those applications in
1768 their own address space using seccomp. Once seccomp is
1769 enabled via /proc/<pid>/seccomp, it cannot be disabled
1770 and the task is only allowed to execute a few safe syscalls
1771 defined by each seccomp mode.
1773 If unsure, say Y. Only embedded should say N here.
1777 config RWSEM_GENERIC_SPINLOCK
1781 config LOCKDEP_SUPPORT
1785 config STACKTRACE_SUPPORT
1789 source "init/Kconfig"
1791 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
1799 bool "Support for PCI controller"
1800 depends on HW_HAS_PCI
1802 Find out whether you have a PCI motherboard. PCI is the name of a
1803 bus system, i.e. the way the CPU talks to the other stuff inside
1804 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
1807 The PCI-HOWTO, available from
1808 <http://www.tldp.org/docs.html#howto>, contains valuable
1809 information about which PCI hardware does work under Linux and which
1816 source "drivers/pci/Kconfig"
1819 # ISA support is now enabled via select. Too many systems still have the one
1820 # or other ISA chip on the board that users don't know about so don't expect
1821 # users to choose the right thing ...
1828 depends on HW_HAS_EISA
1830 select GENERIC_ISA_DMA
1832 The Extended Industry Standard Architecture (EISA) bus was
1833 developed as an open alternative to the IBM MicroChannel bus.
1835 The EISA bus provided some of the features of the IBM MicroChannel
1836 bus while maintaining backward compatibility with cards made for
1837 the older ISA bus. The EISA bus saw limited use between 1988 and
1838 1995 when it was made obsolete by the PCI bus.
1840 Say Y here if you are building a kernel for an EISA-based machine.
1844 source "drivers/eisa/Kconfig"
1847 bool "TURBOchannel support"
1848 depends on MACH_DECSTATION
1850 TurboChannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
1851 processors. Documentation on writing device drivers for TurboChannel
1853 <http://www.cs.arizona.edu/computer.help/policy/DIGITAL_unix/AA-PS3HD-TET1_html/TITLE.html>.
1856 # bool "Access.Bus support"
1866 source "drivers/pcmcia/Kconfig"
1868 source "drivers/pci/hotplug/Kconfig"
1872 menu "Executable file formats"
1874 source "fs/Kconfig.binfmt"
1880 bool "Use 64-bit ELF format for building"
1883 A 64-bit kernel is usually built using the 64-bit ELF binary object
1884 format as it's one that allows arbitrary 64-bit constructs. For
1885 kernels that are loaded within the KSEG compatibility segments the
1886 32-bit ELF format can optionally be used resulting in a somewhat
1887 smaller binary, but this option is not explicitly supported by the
1888 toolchain and since binutils 2.14 it does not even work at all.
1890 Say Y to use the 64-bit format or N to use the 32-bit one.
1895 bool "Include IRIX binary compatibility"
1896 depends on CPU_BIG_ENDIAN && 32BIT && BROKEN
1898 config MIPS32_COMPAT
1899 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
1902 Select this option if you want Linux/MIPS 32-bit binary
1903 compatibility. Since all software available for Linux/MIPS is
1904 currently 32-bit you should say Y here.
1908 depends on MIPS32_COMPAT
1911 config SYSVIPC_COMPAT
1913 depends on COMPAT && SYSVIPC
1917 bool "Kernel support for o32 binaries"
1918 depends on MIPS32_COMPAT
1920 Select this option if you want to run o32 binaries. These are pure
1921 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
1922 existing binaries are in this format.
1927 bool "Kernel support for n32 binaries"
1928 depends on MIPS32_COMPAT
1930 Select this option if you want to run n32 binaries. These are
1931 64-bit binaries using 32-bit quantities for addressing and certain
1932 data that would normally be 64-bit. They are used in special
1939 default y if MIPS32_O32 || MIPS32_N32
1943 menu "Power management options"
1945 source "kernel/power/Kconfig"
1949 source "net/Kconfig"
1951 source "drivers/Kconfig"
1955 source "arch/mips/oprofile/Kconfig"
1957 source "arch/mips/Kconfig.debug"
1959 source "security/Kconfig"
1961 source "crypto/Kconfig"
1963 source "lib/Kconfig"