4 # Horrible source of confusion. Die, die, die ...
7 mainmenu "Linux/MIPS Kernel Configuration"
9 menu "Machine selection"
19 bool "Lemote Fulong mini-PC"
20 select ARCH_SPARSEMEM_ENABLE
21 select SYS_HAS_CPU_LOONGSON2
22 select DMA_NONCOHERENT
25 select HAVE_STD_PC_SERIAL_PORT
30 select SYS_SUPPORTS_32BIT_KERNEL
31 select SYS_SUPPORTS_64BIT_KERNEL
32 select SYS_SUPPORTS_LITTLE_ENDIAN
33 select SYS_SUPPORTS_HIGHMEM
34 select SYS_HAS_EARLY_PRINTK
35 select GENERIC_HARDIRQS_NO__DO_IRQ
38 Lemote Fulong mini-PC board based on the Chinese Loongson-2E CPU and
42 bool "Alchemy processor based machines"
45 bool "Basler eXcite smart camera"
52 select SYS_HAS_CPU_RM9000
53 select SYS_SUPPORTS_32BIT_KERNEL
54 select SYS_SUPPORTS_64BIT_KERNEL
55 select SYS_SUPPORTS_BIG_ENDIAN
56 select SYS_SUPPORTS_KGDB
58 The eXcite is a smart camera platform manufactured by
59 Basler Vision Technologies AG.
61 config BASLER_EXCITE_PROTOTYPE
62 bool "Support for pre-release units"
63 depends on BASLER_EXCITE
66 Pre-series (prototype) units are different from later ones in
67 some ways. Select this option if you have one of these. Please
68 note that a kernel built with this option selected will not be
69 able to run on normal units.
73 select DMA_NONCOHERENT
77 select PCI_GT64XXX_PCI0
78 select SYS_HAS_CPU_NEVADA
79 select SYS_HAS_EARLY_PRINTK
80 select SYS_SUPPORTS_32BIT_KERNEL
81 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
82 select SYS_SUPPORTS_LITTLE_ENDIAN
83 select GENERIC_HARDIRQS_NO__DO_IRQ
85 config MACH_DECSTATION
88 select DMA_NONCOHERENT
91 select SYS_HAS_CPU_R3000
92 select SYS_HAS_CPU_R4X00
93 select SYS_SUPPORTS_32BIT_KERNEL
94 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
95 select SYS_SUPPORTS_LITTLE_ENDIAN
96 select SYS_SUPPORTS_128HZ
97 select SYS_SUPPORTS_256HZ
98 select SYS_SUPPORTS_1024HZ
100 This enables support for DEC's MIPS based workstations. For details
101 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
102 DECstation porting pages on <http://decstation.unix-ag.org/>.
104 If you have one of the following DECstation Models you definitely
105 want to choose R4xx0 for the CPU Type:
112 otherwise choose R3000.
115 bool "Jazz family of machines"
118 select ARCH_MAY_HAVE_PC_FDC
119 select GENERIC_ISA_DMA
123 select SYS_HAS_CPU_R4X00
124 select SYS_SUPPORTS_32BIT_KERNEL
125 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
126 select SYS_SUPPORTS_100HZ
127 select GENERIC_HARDIRQS_NO__DO_IRQ
129 This a family of machines based on the MIPS R4030 chipset which was
130 used by several vendors to build RISC/os and Windows NT workstations.
131 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millenium and
132 Olivetti M700-10 workstations.
135 bool "LASAT Networks platforms"
136 select DMA_NONCOHERENT
137 select SYS_HAS_EARLY_PRINTK
139 select PCI_GT64XXX_PCI0
141 select R5000_CPU_SCACHE
142 select SYS_HAS_CPU_R5000
143 select SYS_SUPPORTS_32BIT_KERNEL
144 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
145 select SYS_SUPPORTS_LITTLE_ENDIAN
146 select GENERIC_HARDIRQS_NO__DO_IRQ
149 bool "MIPS Atlas board"
151 select DMA_NONCOHERENT
152 select SYS_HAS_EARLY_PRINTK
155 select MIPS_BOARDS_GEN
157 select PCI_GT64XXX_PCI0
159 select RM7000_CPU_SCACHE
161 select SYS_HAS_CPU_MIPS32_R1
162 select SYS_HAS_CPU_MIPS32_R2
163 select SYS_HAS_CPU_MIPS64_R1
164 select SYS_HAS_CPU_NEVADA
165 select SYS_HAS_CPU_RM7000
166 select SYS_SUPPORTS_32BIT_KERNEL
167 select SYS_SUPPORTS_64BIT_KERNEL
168 select SYS_SUPPORTS_BIG_ENDIAN
169 select SYS_SUPPORTS_LITTLE_ENDIAN
170 select SYS_SUPPORTS_MULTITHREADING if EXPERIMENTAL
171 select SYS_SUPPORTS_SMARTMIPS
172 select GENERIC_HARDIRQS_NO__DO_IRQ
174 This enables support for the MIPS Technologies Atlas evaluation
178 bool "MIPS Malta board"
179 select ARCH_MAY_HAVE_PC_FDC
181 select DMA_NONCOHERENT
182 select GENERIC_ISA_DMA
186 select MIPS_BOARDS_GEN
188 select MIPS_CPU_SCACHE
189 select PCI_GT64XXX_PCI0
192 select SYS_HAS_CPU_MIPS32_R1
193 select SYS_HAS_CPU_MIPS32_R2
194 select SYS_HAS_CPU_MIPS64_R1
195 select SYS_HAS_CPU_NEVADA
196 select SYS_HAS_CPU_RM7000
197 select SYS_HAS_EARLY_PRINTK
198 select SYS_SUPPORTS_32BIT_KERNEL
199 select SYS_SUPPORTS_64BIT_KERNEL
200 select SYS_SUPPORTS_BIG_ENDIAN
201 select SYS_SUPPORTS_LITTLE_ENDIAN
202 select SYS_SUPPORTS_MULTITHREADING
203 select SYS_SUPPORTS_SMARTMIPS
205 This enables support for the MIPS Technologies Malta evaluation
209 bool "MIPS SEAD board (EXPERIMENTAL)"
210 depends on EXPERIMENTAL
212 select DMA_NONCOHERENT
213 select SYS_HAS_EARLY_PRINTK
214 select MIPS_BOARDS_GEN
215 select SYS_HAS_CPU_MIPS32_R1
216 select SYS_HAS_CPU_MIPS32_R2
217 select SYS_HAS_CPU_MIPS64_R1
218 select SYS_SUPPORTS_32BIT_KERNEL
219 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
220 select SYS_SUPPORTS_BIG_ENDIAN
221 select SYS_SUPPORTS_LITTLE_ENDIAN
222 select SYS_SUPPORTS_SMARTMIPS
224 This enables support for the MIPS Technologies SEAD evaluation
228 bool "Wind River PPMC board"
231 select DMA_NONCOHERENT
233 select PCI_GT64XXX_PCI0
235 select SYS_HAS_CPU_MIPS32_R1
236 select SYS_HAS_CPU_MIPS32_R2
237 select SYS_HAS_CPU_MIPS64_R1
238 select SYS_HAS_CPU_NEVADA
239 select SYS_HAS_CPU_RM7000
240 select SYS_SUPPORTS_32BIT_KERNEL
241 select SYS_SUPPORTS_64BIT_KERNEL
242 select SYS_SUPPORTS_BIG_ENDIAN
243 select SYS_SUPPORTS_LITTLE_ENDIAN
245 This enables support for the Wind River MIPS32 4KC PPMC evaluation
246 board, which is based on GT64120 bridge chip.
249 bool 'MIPS simulator (MIPSsim)'
250 select DMA_NONCOHERENT
251 select SYS_HAS_EARLY_PRINTK
254 select SYS_HAS_CPU_MIPS32_R1
255 select SYS_HAS_CPU_MIPS32_R2
256 select SYS_HAS_EARLY_PRINTK
257 select SYS_SUPPORTS_32BIT_KERNEL
258 select SYS_SUPPORTS_BIG_ENDIAN
259 select SYS_SUPPORTS_MULTITHREADING
260 select SYS_SUPPORTS_LITTLE_ENDIAN
262 This option enables support for MIPS Technologies MIPSsim software
265 config MOMENCO_OCELOT
266 bool "Momentum Ocelot board"
267 select DMA_NONCOHERENT
271 select PCI_GT64XXX_PCI0
272 select RM7000_CPU_SCACHE
274 select SYS_HAS_CPU_RM7000
275 select SYS_SUPPORTS_32BIT_KERNEL
276 select SYS_SUPPORTS_64BIT_KERNEL
277 select SYS_SUPPORTS_BIG_ENDIAN
278 select SYS_SUPPORTS_KGDB
280 The Ocelot is a MIPS-based Single Board Computer (SBC) made by
281 Momentum Computer <http://www.momenco.com/>.
283 config MOMENCO_OCELOT_3
284 bool "Momentum Ocelot-3 board"
286 select DMA_NONCOHERENT
292 select RM7000_CPU_SCACHE
294 select SYS_HAS_CPU_RM9000
295 select SYS_SUPPORTS_32BIT_KERNEL
296 select SYS_SUPPORTS_64BIT_KERNEL
297 select SYS_SUPPORTS_BIG_ENDIAN
299 The Ocelot-3 is based off Discovery III System Controller and
300 PMC-Sierra Rm79000 core.
303 bool "Philips PNX8550 based JBS board"
305 select SYS_SUPPORTS_LITTLE_ENDIAN
307 config PNX8550_STB810
308 bool "Philips PNX8550 based STB810 board"
310 select SYS_SUPPORTS_LITTLE_ENDIAN
313 bool "NEC DDB Vrc-5477"
314 select DDB5XXX_COMMON
315 select DMA_NONCOHERENT
319 select SYS_HAS_CPU_R5432
320 select SYS_SUPPORTS_32BIT_KERNEL
321 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
322 select SYS_SUPPORTS_KGDB
323 select SYS_SUPPORTS_KGDB
324 select SYS_SUPPORTS_LITTLE_ENDIAN
326 This enables support for the R5432-based NEC DDB Vrc-5477,
327 or Rockhopper/SolutionGear boards with R5432/R5500 CPUs.
329 Features : kernel debugging, serial terminal, NFS root fs, on-board
330 ether port USB, AC97, PCI, etc.
333 bool "NEC VR4100 series based machines"
334 select SYS_HAS_CPU_VR41XX
335 select GENERIC_HARDIRQS_NO__DO_IRQ
338 bool "PMC-Sierra MSP chipsets"
339 depends on EXPERIMENTAL
340 select DMA_NONCOHERENT
342 select NO_EXCEPT_FILL
344 select SYS_HAS_CPU_MIPS32_R1
345 select SYS_HAS_CPU_MIPS32_R2
346 select SYS_SUPPORTS_32BIT_KERNEL
347 select SYS_SUPPORTS_BIG_ENDIAN
348 select SYS_SUPPORTS_KGDB
351 select SERIAL_8250_CONSOLE
353 This adds support for the PMC-Sierra family of Multi-Service
354 Processor System-On-A-Chips. These parts include a number
355 of integrated peripherals, interfaces and DSPs in addition to
356 a variety of MIPS cores.
359 bool "PMC-Sierra Yosemite eval board"
366 select SYS_HAS_CPU_RM9000
367 select SYS_HAS_EARLY_PRINTK
368 select SYS_SUPPORTS_32BIT_KERNEL
369 select SYS_SUPPORTS_64BIT_KERNEL
370 select SYS_SUPPORTS_BIG_ENDIAN
371 select SYS_SUPPORTS_HIGHMEM
372 select SYS_SUPPORTS_KGDB
373 select SYS_SUPPORTS_SMP
375 Yosemite is an evaluation board for the RM9000x2 processor
376 manufactured by PMC-Sierra.
381 select GENERIC_ISA_DMA
382 select HAVE_STD_PC_SERIAL_PORT
387 select SYS_HAS_CPU_MIPS32_R1
388 select SYS_SUPPORTS_32BIT_KERNEL
389 select SYS_SUPPORTS_BIG_ENDIAN
390 select SYS_SUPPORTS_LITTLE_ENDIAN
391 select ARCH_SPARSEMEM_ENABLE
392 select GENERIC_HARDIRQS_NO__DO_IRQ
393 select NR_CPUS_DEFAULT_1
394 select SYS_SUPPORTS_SMP
396 Qemu is a software emulator which among other architectures also
397 can simulate a MIPS32 4Kc system. This patch adds support for the
398 system architecture that currently is being simulated by Qemu. It
399 will eventually be removed again when Qemu has the capability to
400 simulate actual MIPS hardware platforms. More information on Qemu
401 can be found at http://www.linux-mips.org/wiki/Qemu.
404 bool "NEC EMMA2RH Mark-eins"
405 select DMA_NONCOHERENT
409 select SYS_SUPPORTS_32BIT_KERNEL
410 select SYS_SUPPORTS_BIG_ENDIAN
411 select SYS_SUPPORTS_LITTLE_ENDIAN
412 select SYS_HAS_CPU_R5000
414 This enables support for the R5432-based NEC Mark-eins
415 boards with R5500 CPU.
418 bool "SGI IP22 (Indy/Indigo2)"
422 select DMA_NONCOHERENT
424 select IP22_CPU_SCACHE
426 select GENERIC_ISA_DMA_SUPPORT_BROKEN
428 select SYS_HAS_CPU_R4X00
429 select SYS_HAS_CPU_R5000
430 select SYS_HAS_EARLY_PRINTK
431 select SYS_SUPPORTS_32BIT_KERNEL
432 select SYS_SUPPORTS_64BIT_KERNEL
433 select SYS_SUPPORTS_BIG_ENDIAN
435 This are the SGI Indy, Challenge S and Indigo2, as well as certain
436 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
437 that runs on these, say Y here.
440 bool "SGI IP27 (Origin200/2000)"
445 select SYS_HAS_EARLY_PRINTK
447 select NR_CPUS_DEFAULT_64
449 select SYS_HAS_CPU_R10000
450 select SYS_SUPPORTS_64BIT_KERNEL
451 select SYS_SUPPORTS_BIG_ENDIAN
452 select SYS_SUPPORTS_KGDB
453 select SYS_SUPPORTS_NUMA
454 select SYS_SUPPORTS_SMP
455 select GENERIC_HARDIRQS_NO__DO_IRQ
457 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
458 workstations. To compile a Linux kernel that runs on these, say Y
466 select DMA_NONCOHERENT
468 select R5000_CPU_SCACHE
469 select RM7000_CPU_SCACHE
470 select SYS_HAS_CPU_R5000
471 select SYS_HAS_CPU_R10000 if BROKEN
472 select SYS_HAS_CPU_RM7000
473 select SYS_HAS_CPU_NEVADA
474 select SYS_SUPPORTS_64BIT_KERNEL
475 select SYS_SUPPORTS_BIG_ENDIAN
477 If you want this kernel to run on SGI O2 workstation, say Y here.
480 bool "Sibyte BCM91480B-BigSur"
483 select NR_CPUS_DEFAULT_4
485 select SIBYTE_BCM1x80
487 select SYS_HAS_CPU_SB1
488 select SYS_SUPPORTS_BIG_ENDIAN
489 select SYS_SUPPORTS_LITTLE_ENDIAN
492 bool "Sibyte BCM91250A-SWARM"
495 select NR_CPUS_DEFAULT_2
498 select SYS_HAS_CPU_SB1
499 select SYS_SUPPORTS_BIG_ENDIAN
500 select SYS_SUPPORTS_HIGHMEM
501 select SYS_SUPPORTS_KGDB
502 select SYS_SUPPORTS_LITTLE_ENDIAN
504 config SIBYTE_SENTOSA
505 bool "Sibyte BCM91250E-Sentosa"
506 depends on EXPERIMENTAL
509 select NR_CPUS_DEFAULT_2
512 select SYS_HAS_CPU_SB1
513 select SYS_SUPPORTS_BIG_ENDIAN
514 select SYS_SUPPORTS_LITTLE_ENDIAN
517 bool "Sibyte BCM91125E-Rhone"
518 depends on EXPERIMENTAL
521 select SIBYTE_BCM1125H
523 select SYS_HAS_CPU_SB1
524 select SYS_SUPPORTS_BIG_ENDIAN
525 select SYS_SUPPORTS_LITTLE_ENDIAN
528 bool "Sibyte BCM91120x-Carmel"
529 depends on EXPERIMENTAL
532 select SIBYTE_BCM1120
534 select SYS_HAS_CPU_SB1
535 select SYS_SUPPORTS_BIG_ENDIAN
536 select SYS_SUPPORTS_LITTLE_ENDIAN
538 config SIBYTE_PTSWARM
539 bool "Sibyte BCM91250PT-PTSWARM"
540 depends on EXPERIMENTAL
543 select NR_CPUS_DEFAULT_2
546 select SYS_HAS_CPU_SB1
547 select SYS_SUPPORTS_BIG_ENDIAN
548 select SYS_SUPPORTS_HIGHMEM
549 select SYS_SUPPORTS_LITTLE_ENDIAN
551 config SIBYTE_LITTLESUR
552 bool "Sibyte BCM91250C2-LittleSur"
553 depends on EXPERIMENTAL
556 select NR_CPUS_DEFAULT_2
559 select SYS_HAS_CPU_SB1
560 select SYS_SUPPORTS_BIG_ENDIAN
561 select SYS_SUPPORTS_HIGHMEM
562 select SYS_SUPPORTS_LITTLE_ENDIAN
565 bool "Sibyte BCM91120C-CRhine"
566 depends on EXPERIMENTAL
569 select SIBYTE_BCM1120
571 select SYS_HAS_CPU_SB1
572 select SYS_SUPPORTS_BIG_ENDIAN
573 select SYS_SUPPORTS_LITTLE_ENDIAN
576 bool "Sibyte BCM91125C-CRhone"
577 depends on EXPERIMENTAL
580 select SIBYTE_BCM1125
582 select SYS_HAS_CPU_SB1
583 select SYS_SUPPORTS_BIG_ENDIAN
584 select SYS_SUPPORTS_HIGHMEM
585 select SYS_SUPPORTS_LITTLE_ENDIAN
588 bool "SNI RM200/300/400"
589 select ARC if CPU_LITTLE_ENDIAN
590 select ARC32 if CPU_LITTLE_ENDIAN
591 select ARCH_MAY_HAVE_PC_FDC
593 select DMA_NONCOHERENT
594 select GENERIC_ISA_DMA
601 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
602 select SYS_HAS_CPU_R4X00
603 select SYS_HAS_CPU_R5000
604 select SYS_HAS_CPU_R10000
605 select R5000_CPU_SCACHE
606 select SYS_HAS_EARLY_PRINTK
607 select SYS_SUPPORTS_32BIT_KERNEL
608 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
609 select SYS_SUPPORTS_BIG_ENDIAN
610 select SYS_SUPPORTS_HIGHMEM
611 select SYS_SUPPORTS_LITTLE_ENDIAN
613 The SNI RM200/300/400 are MIPS-based machines manufactured by
614 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
615 Technology and now in turn merged with Fujitsu. Say Y here to
616 support this machine type.
618 config TOSHIBA_JMR3927
619 bool "Toshiba JMR-TX3927 board"
620 select DMA_NONCOHERENT
624 select SYS_HAS_CPU_TX39XX
625 select SYS_SUPPORTS_32BIT_KERNEL
626 select SYS_SUPPORTS_LITTLE_ENDIAN
627 select SYS_SUPPORTS_BIG_ENDIAN
628 select GENERIC_HARDIRQS_NO__DO_IRQ
630 config TOSHIBA_RBTX4927
631 bool "Toshiba TBTX49[23]7 board"
632 select DMA_NONCOHERENT
633 select HAS_TXX9_SERIAL
637 select SYS_HAS_CPU_TX49XX
638 select SYS_SUPPORTS_32BIT_KERNEL
639 select SYS_SUPPORTS_64BIT_KERNEL
640 select SYS_SUPPORTS_LITTLE_ENDIAN
641 select SYS_SUPPORTS_BIG_ENDIAN
642 select SYS_SUPPORTS_KGDB
643 select GENERIC_HARDIRQS_NO__DO_IRQ
645 This Toshiba board is based on the TX4927 processor. Say Y here to
646 support this machine type
648 config TOSHIBA_RBTX4938
649 bool "Toshiba RBTX4938 board"
650 select HAVE_STD_PC_SERIAL_PORT
651 select DMA_NONCOHERENT
652 select GENERIC_ISA_DMA
653 select HAS_TXX9_SERIAL
657 select SYS_HAS_CPU_TX49XX
658 select SYS_SUPPORTS_32BIT_KERNEL
659 select SYS_SUPPORTS_LITTLE_ENDIAN
660 select SYS_SUPPORTS_BIG_ENDIAN
661 select SYS_SUPPORTS_KGDB
662 select GENERIC_HARDIRQS_NO__DO_IRQ
665 This Toshiba board is based on the TX4938 processor. Say Y here to
666 support this machine type
670 source "arch/mips/au1000/Kconfig"
671 source "arch/mips/ddb5xxx/Kconfig"
672 source "arch/mips/jazz/Kconfig"
673 source "arch/mips/lasat/Kconfig"
674 source "arch/mips/pmc-sierra/Kconfig"
675 source "arch/mips/sgi-ip27/Kconfig"
676 source "arch/mips/sibyte/Kconfig"
677 source "arch/mips/tx4927/Kconfig"
678 source "arch/mips/tx4938/Kconfig"
679 source "arch/mips/vr41xx/Kconfig"
680 source "arch/mips/philips/pnx8550/common/Kconfig"
684 config RWSEM_GENERIC_SPINLOCK
688 config RWSEM_XCHGADD_ALGORITHM
691 config ARCH_HAS_ILOG2_U32
695 config ARCH_HAS_ILOG2_U64
699 config GENERIC_FIND_NEXT_BIT
703 config GENERIC_HWEIGHT
707 config GENERIC_CALIBRATE_DELAY
715 config SCHED_NO_NO_OMIT_FRAME_POINTER
719 config GENERIC_HARDIRQS_NO__DO_IRQ
724 # Select some configuration options automatically based on user selections.
729 config ARCH_MAY_HAVE_PC_FDC
743 select DMA_NEED_PCI_MAP_STATE
745 config DMA_NONCOHERENT
747 select DMA_NEED_PCI_MAP_STATE
749 config DMA_NEED_PCI_MAP_STATE
753 bool "Early printk" if EMBEDDED && DEBUG_KERNEL
754 depends on SYS_HAS_EARLY_PRINTK
757 This option enables special console drivers which allow the kernel
758 to print messages very early in the bootup process.
760 This is useful for kernel debugging when your machine crashes very
761 early before the console code is initialized. For normal operation,
762 it is not recommended because it looks ugly on some machines and
763 doesn't cooperate with an X server. You should normally say N here,
764 unless you want to debug such a crash.
766 config SYS_HAS_EARLY_PRINTK
769 config GENERIC_ISA_DMA
785 config MIPS_DISABLE_OBSOLETE_IDE
791 config GENERIC_ISA_DMA_SUPPORT_BROKEN
799 # Endianess selection. Sufficiently obscure so many users don't know what to
800 # answer,so we try hard to limit the available choices. Also the use of a
801 # choice statement should be more obvious to the user.
804 prompt "Endianess selection"
806 Some MIPS machines can be configured for either little or big endian
807 byte order. These modes require different kernels and a different
808 Linux distribution. In general there is one preferred byteorder for a
809 particular system but some systems are just as commonly used in the
810 one or the other endianness.
812 config CPU_BIG_ENDIAN
814 depends on SYS_SUPPORTS_BIG_ENDIAN
816 config CPU_LITTLE_ENDIAN
818 depends on SYS_SUPPORTS_LITTLE_ENDIAN
823 config SYS_SUPPORTS_APM_EMULATION
826 config SYS_SUPPORTS_BIG_ENDIAN
829 config SYS_SUPPORTS_LITTLE_ENDIAN
850 config DDB5XXX_COMMON
852 select SYS_SUPPORTS_KGDB
854 config MIPS_BOARDS_GEN
857 config PCI_GT64XXX_PCI0
860 config NO_EXCEPT_FILL
865 select HAS_TXX9_SERIAL
880 select DMA_NONCOHERENT
882 select SYS_HAS_CPU_MIPS32_R1
883 select SYS_HAS_EARLY_PRINTK
884 select SYS_SUPPORTS_32BIT_KERNEL
885 select GENERIC_HARDIRQS_NO__DO_IRQ
886 select SYS_SUPPORTS_KGDB
901 # Unfortunately not all GT64120 systems run the chip at the same clock.
902 # As the user for the clock rate and try to minimize the available options.
905 prompt "Galileo Chip Clock"
906 depends on MOMENCO_OCELOT
907 default SYSCLK_100 if MOMENCO_OCELOT
910 bool "100" if MOMENCO_OCELOT
920 config MIPS_L1_CACHE_SHIFT
922 default "4" if MACH_DECSTATION
923 default "7" if SGI_IP27 || SNI_RM
924 default "4" if PMC_MSP4200_EVAL
927 config HAVE_STD_PC_SERIAL_PORT
931 bool "ARC console support"
932 depends on SGI_IP22 || (SNI_RM && CPU_LITTLE_ENDIAN)
936 depends on MACH_JAZZ || SNI_RM || SGI_IP32
941 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP32
958 depends on SYS_HAS_CPU_LOONGSON2
959 select CPU_SUPPORTS_32BIT_KERNEL
960 select CPU_SUPPORTS_64BIT_KERNEL
961 select CPU_SUPPORTS_HIGHMEM
963 The Loongson 2E processor implements the MIPS III instruction set
964 with many extensions.
967 bool "MIPS32 Release 1"
968 depends on SYS_HAS_CPU_MIPS32_R1
970 select CPU_HAS_PREFETCH
971 select CPU_SUPPORTS_32BIT_KERNEL
972 select CPU_SUPPORTS_HIGHMEM
974 Choose this option to build a kernel for release 1 or later of the
975 MIPS32 architecture. Most modern embedded systems with a 32-bit
976 MIPS processor are based on a MIPS32 processor. If you know the
977 specific type of processor in your system, choose those that one
978 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
979 Release 2 of the MIPS32 architecture is available since several
980 years so chances are you even have a MIPS32 Release 2 processor
981 in which case you should choose CPU_MIPS32_R2 instead for better
985 bool "MIPS32 Release 2"
986 depends on SYS_HAS_CPU_MIPS32_R2
988 select CPU_HAS_PREFETCH
989 select CPU_SUPPORTS_32BIT_KERNEL
990 select CPU_SUPPORTS_HIGHMEM
992 Choose this option to build a kernel for release 2 or later of the
993 MIPS32 architecture. Most modern embedded systems with a 32-bit
994 MIPS processor are based on a MIPS32 processor. If you know the
995 specific type of processor in your system, choose those that one
996 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
999 bool "MIPS64 Release 1"
1000 depends on SYS_HAS_CPU_MIPS64_R1
1002 select CPU_HAS_PREFETCH
1003 select CPU_SUPPORTS_32BIT_KERNEL
1004 select CPU_SUPPORTS_64BIT_KERNEL
1005 select CPU_SUPPORTS_HIGHMEM
1007 Choose this option to build a kernel for release 1 or later of the
1008 MIPS64 architecture. Many modern embedded systems with a 64-bit
1009 MIPS processor are based on a MIPS64 processor. If you know the
1010 specific type of processor in your system, choose those that one
1011 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1012 Release 2 of the MIPS64 architecture is available since several
1013 years so chances are you even have a MIPS64 Release 2 processor
1014 in which case you should choose CPU_MIPS64_R2 instead for better
1017 config CPU_MIPS64_R2
1018 bool "MIPS64 Release 2"
1019 depends on SYS_HAS_CPU_MIPS64_R2
1021 select CPU_HAS_PREFETCH
1022 select CPU_SUPPORTS_32BIT_KERNEL
1023 select CPU_SUPPORTS_64BIT_KERNEL
1024 select CPU_SUPPORTS_HIGHMEM
1026 Choose this option to build a kernel for release 2 or later of the
1027 MIPS64 architecture. Many modern embedded systems with a 64-bit
1028 MIPS processor are based on a MIPS64 processor. If you know the
1029 specific type of processor in your system, choose those that one
1030 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1034 depends on SYS_HAS_CPU_R3000
1036 select CPU_SUPPORTS_32BIT_KERNEL
1037 select CPU_SUPPORTS_HIGHMEM
1039 Please make sure to pick the right CPU type. Linux/MIPS is not
1040 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1041 *not* work on R4000 machines and vice versa. However, since most
1042 of the supported machines have an R4000 (or similar) CPU, R4x00
1043 might be a safe bet. If the resulting kernel does not work,
1044 try to recompile with R3000.
1048 depends on SYS_HAS_CPU_TX39XX
1049 select CPU_SUPPORTS_32BIT_KERNEL
1053 depends on SYS_HAS_CPU_VR41XX
1054 select CPU_SUPPORTS_32BIT_KERNEL
1055 select CPU_SUPPORTS_64BIT_KERNEL
1057 The options selects support for the NEC VR4100 series of processors.
1058 Only choose this option if you have one of these processors as a
1059 kernel built with this option will not run on any other type of
1060 processor or vice versa.
1064 depends on SYS_HAS_CPU_R4300
1066 select CPU_SUPPORTS_32BIT_KERNEL
1067 select CPU_SUPPORTS_64BIT_KERNEL
1069 MIPS Technologies R4300-series processors.
1073 depends on SYS_HAS_CPU_R4X00
1075 select CPU_SUPPORTS_32BIT_KERNEL
1076 select CPU_SUPPORTS_64BIT_KERNEL
1078 MIPS Technologies R4000-series processors other than 4300, including
1079 the R4000, R4400, R4600, and 4700.
1083 depends on SYS_HAS_CPU_TX49XX
1085 select CPU_HAS_PREFETCH
1086 select CPU_SUPPORTS_32BIT_KERNEL
1087 select CPU_SUPPORTS_64BIT_KERNEL
1091 depends on SYS_HAS_CPU_R5000
1093 select CPU_SUPPORTS_32BIT_KERNEL
1094 select CPU_SUPPORTS_64BIT_KERNEL
1096 MIPS Technologies R5000-series processors other than the Nevada.
1100 depends on SYS_HAS_CPU_R5432
1102 select CPU_SUPPORTS_32BIT_KERNEL
1103 select CPU_SUPPORTS_64BIT_KERNEL
1107 depends on EXPERIMENTAL
1109 depends on SYS_HAS_CPU_R6000
1110 select CPU_SUPPORTS_32BIT_KERNEL
1112 MIPS Technologies R6000 and R6000A series processors. Note these
1113 processors are extremely rare and the support for them is incomplete.
1117 depends on SYS_HAS_CPU_NEVADA
1119 select CPU_SUPPORTS_32BIT_KERNEL
1120 select CPU_SUPPORTS_64BIT_KERNEL
1122 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1126 depends on EXPERIMENTAL
1127 depends on SYS_HAS_CPU_R8000
1129 select CPU_HAS_PREFETCH
1130 select CPU_SUPPORTS_64BIT_KERNEL
1132 MIPS Technologies R8000 processors. Note these processors are
1133 uncommon and the support for them is incomplete.
1137 depends on SYS_HAS_CPU_R10000
1139 select CPU_HAS_PREFETCH
1140 select CPU_SUPPORTS_32BIT_KERNEL
1141 select CPU_SUPPORTS_64BIT_KERNEL
1142 select CPU_SUPPORTS_HIGHMEM
1144 MIPS Technologies R10000-series processors.
1148 depends on SYS_HAS_CPU_RM7000
1150 select CPU_HAS_PREFETCH
1151 select CPU_SUPPORTS_32BIT_KERNEL
1152 select CPU_SUPPORTS_64BIT_KERNEL
1153 select CPU_SUPPORTS_HIGHMEM
1157 depends on SYS_HAS_CPU_RM9000
1159 select CPU_HAS_PREFETCH
1160 select CPU_SUPPORTS_32BIT_KERNEL
1161 select CPU_SUPPORTS_64BIT_KERNEL
1162 select CPU_SUPPORTS_HIGHMEM
1163 select WEAK_ORDERING
1167 depends on SYS_HAS_CPU_SB1
1169 select CPU_SUPPORTS_32BIT_KERNEL
1170 select CPU_SUPPORTS_64BIT_KERNEL
1171 select CPU_SUPPORTS_HIGHMEM
1172 select WEAK_ORDERING
1176 config SYS_HAS_CPU_LOONGSON2
1179 config SYS_HAS_CPU_MIPS32_R1
1182 config SYS_HAS_CPU_MIPS32_R2
1185 config SYS_HAS_CPU_MIPS64_R1
1188 config SYS_HAS_CPU_MIPS64_R2
1191 config SYS_HAS_CPU_R3000
1194 config SYS_HAS_CPU_TX39XX
1197 config SYS_HAS_CPU_VR41XX
1200 config SYS_HAS_CPU_R4300
1203 config SYS_HAS_CPU_R4X00
1206 config SYS_HAS_CPU_TX49XX
1209 config SYS_HAS_CPU_R5000
1212 config SYS_HAS_CPU_R5432
1215 config SYS_HAS_CPU_R6000
1218 config SYS_HAS_CPU_NEVADA
1221 config SYS_HAS_CPU_R8000
1224 config SYS_HAS_CPU_R10000
1227 config SYS_HAS_CPU_RM7000
1230 config SYS_HAS_CPU_RM9000
1233 config SYS_HAS_CPU_SB1
1236 config WEAK_ORDERING
1241 # These two indicate any level of the MIPS32 and MIPS64 architecture
1245 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1249 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1252 # These two indicate the revision of the architecture, either Release 1 or Release 2
1256 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1260 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2
1262 config SYS_SUPPORTS_32BIT_KERNEL
1264 config SYS_SUPPORTS_64BIT_KERNEL
1266 config CPU_SUPPORTS_32BIT_KERNEL
1268 config CPU_SUPPORTS_64BIT_KERNEL
1275 prompt "Kernel code model"
1277 You should only select this option if you have a workload that
1278 actually benefits from 64-bit processing or if your machine has
1279 large memory. You will only be presented a single option in this
1280 menu if your system does not support both 32-bit and 64-bit kernels.
1283 bool "32-bit kernel"
1284 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1287 Select this option if you want to build a 32-bit kernel.
1289 bool "64-bit kernel"
1290 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1292 Select this option if you want to build a 64-bit kernel.
1297 prompt "Kernel page size"
1298 default PAGE_SIZE_4KB
1300 config PAGE_SIZE_4KB
1303 This option select the standard 4kB Linux page size. On some
1304 R3000-family processors this is the only available page size. Using
1305 4kB page size will minimize memory consumption and is therefore
1306 recommended for low memory systems.
1308 config PAGE_SIZE_8KB
1310 depends on EXPERIMENTAL && CPU_R8000
1312 Using 8kB page size will result in higher performance kernel at
1313 the price of higher memory consumption. This option is available
1314 only on the R8000 processor. Not that at the time of this writing
1315 this option is still high experimental; there are also issues with
1316 compatibility of user applications.
1318 config PAGE_SIZE_16KB
1320 depends on !CPU_R3000 && !CPU_TX39XX
1322 Using 16kB page size will result in higher performance kernel at
1323 the price of higher memory consumption. This option is available on
1324 all non-R3000 family processors. Note that you will need a suitable
1325 Linux distribution to support this.
1327 config PAGE_SIZE_64KB
1329 depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
1331 Using 64kB page size will result in higher performance kernel at
1332 the price of higher memory consumption. This option is available on
1333 all non-R3000 family processor. Not that at the time of this
1334 writing this option is still high experimental.
1341 config IP22_CPU_SCACHE
1346 # Support for a MIPS32 / MIPS64 style S-caches
1348 config MIPS_CPU_SCACHE
1352 config R5000_CPU_SCACHE
1356 config RM7000_CPU_SCACHE
1360 config SIBYTE_DMA_PAGEOPS
1361 bool "Use DMA to clear/copy pages"
1364 Instead of using the CPU to zero and copy pages, use a Data Mover
1365 channel. These DMA channels are otherwise unused by the standard
1366 SiByte Linux port. Seems to give a small performance benefit.
1368 config CPU_HAS_PREFETCH
1372 prompt "MIPS MT options"
1374 config MIPS_MT_DISABLED
1375 bool "Disable multithreading support."
1377 Use this option if your workload can't take advantage of
1378 MIPS hardware multithreading support. On systems that don't have
1379 the option of an MT-enabled processor this option will be the only
1380 option in this menu.
1383 bool "Use 1 TC on each available VPE for SMP"
1384 depends on SYS_SUPPORTS_MULTITHREADING
1385 select CPU_MIPSR2_IRQ_VI
1386 select CPU_MIPSR2_IRQ_EI
1387 select CPU_MIPSR2_SRS
1389 select NR_CPUS_DEFAULT_2
1391 select SYS_SUPPORTS_SMP
1393 This is a kernel model which is also known a VSMP or lately
1394 has been marketesed into SMVP.
1397 bool "SMTC: Use all TCs on all VPEs for SMP"
1398 depends on CPU_MIPS32_R2
1399 #depends on CPU_MIPS64_R2 # once there is hardware ...
1400 depends on SYS_SUPPORTS_MULTITHREADING
1401 select CPU_MIPSR2_IRQ_VI
1402 select CPU_MIPSR2_IRQ_EI
1403 select CPU_MIPSR2_SRS
1405 select NR_CPUS_DEFAULT_8
1407 select SYS_SUPPORTS_SMP
1409 This is a kernel model which is known a SMTC or lately has been
1410 marketesed into SMVP.
1412 config MIPS_VPE_LOADER
1413 bool "VPE loader support."
1414 depends on SYS_SUPPORTS_MULTITHREADING
1415 select CPU_MIPSR2_IRQ_VI
1416 select CPU_MIPSR2_IRQ_EI
1417 select CPU_MIPSR2_SRS
1420 Includes a loader for loading an elf relocatable object
1421 onto another VPE and running it.
1428 config SYS_SUPPORTS_MULTITHREADING
1431 config MIPS_MT_FPAFF
1432 bool "Dynamic FPU affinity for FP-intensive threads"
1436 config MIPS_MT_SMTC_INSTANT_REPLAY
1437 bool "Low-latency Dispatch of Deferred SMTC IPIs"
1438 depends on MIPS_MT_SMTC && !PREEMPT
1441 SMTC pseudo-interrupts between TCs are deferred and queued
1442 if the target TC is interrupt-inhibited (IXMT). In the first
1443 SMTC prototypes, these queued IPIs were serviced on return
1444 to user mode, or on entry into the kernel idle loop. The
1445 INSTANT_REPLAY option dispatches them as part of local_irq_restore()
1446 processing, which adds runtime overhead (hence the option to turn
1447 it off), but ensures that IPIs are handled promptly even under
1448 heavy I/O interrupt load.
1450 config MIPS_VPE_LOADER_TOM
1451 bool "Load VPE program into memory hidden from linux"
1452 depends on MIPS_VPE_LOADER
1455 The loader can use memory that is present but has been hidden from
1456 Linux using the kernel command line option "mem=xxMB". It's up to
1457 you to ensure the amount you put in the option and the space your
1458 program requires is less or equal to the amount physically present.
1460 # this should possibly be in drivers/char, but it is rather cpu related. Hmmm
1461 config MIPS_VPE_APSP_API
1462 bool "Enable support for AP/SP API (RTLX)"
1463 depends on MIPS_VPE_LOADER
1466 config MIPS_APSP_KSPD
1468 depends on MIPS_VPE_APSP_API
1471 KSPD is a kernel daemon that accepts syscall requests from the SP
1472 side, actions them and returns the results. It also handles the
1473 "exit" syscall notifying other kernel modules the SP program is
1474 exiting. You probably want to say yes here.
1476 config SB1_PASS_1_WORKAROUNDS
1478 depends on CPU_SB1_PASS_1
1481 config SB1_PASS_2_WORKAROUNDS
1483 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
1486 config SB1_PASS_2_1_WORKAROUNDS
1488 depends on CPU_SB1 && CPU_SB1_PASS_2
1491 config 64BIT_PHYS_ADDR
1492 bool "Support for 64-bit physical address space"
1493 depends on (CPU_R4X00 || CPU_R5000 || CPU_RM7000 || CPU_RM9000 || CPU_R10000 || CPU_SB1 || CPU_MIPS32 || CPU_MIPS64) && 32BIT
1498 config CPU_HAS_SMARTMIPS
1499 depends on SYS_SUPPORTS_SMARTMIPS
1500 bool "Support for the SmartMIPS ASE"
1502 SmartMIPS is a extension of the MIPS32 architecture aimed at
1503 increased security at both hardware and software level for
1504 smartcards. Enabling this option will allow proper use of the
1505 SmartMIPS instructions by Linux applications. However a kernel with
1506 this option will not work on a MIPS core without SmartMIPS core. If
1507 you don't know you probably don't have SmartMIPS and should say N
1513 config 64BIT_CONTEXT
1514 bool "Save 64bit integer registers"
1515 depends on 32BIT && CPU_LOONGSON2
1517 Loongson2 CPU is 64bit , when used in 32BIT mode, its integer
1518 registers can still be accessed as 64bit, mainly for multimedia
1519 instructions. We must have all 64bit save/restored to make sure
1520 those instructions to get correct result.
1523 # Vectored interrupt mode is an R2 feature
1525 config CPU_MIPSR2_IRQ_VI
1529 # Extended interrupt mode is an R2 feature
1531 config CPU_MIPSR2_IRQ_EI
1535 # Shadow registers are an R2 feature
1537 config CPU_MIPSR2_SRS
1542 depends on !CPU_R3000
1546 # Use the generic interrupt handling code in kernel/irq/:
1548 config GENERIC_HARDIRQS
1552 config GENERIC_IRQ_PROBE
1560 # - Highmem only makes sense for the 32-bit kernel.
1561 # - The current highmem code will only work properly on physically indexed
1562 # caches such as R3000, SB1, R7000 or those that look like they're virtually
1563 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
1564 # moment we protect the user and offer the highmem option only on machines
1565 # where it's known to be safe. This will not offer highmem on a few systems
1566 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
1567 # indexed CPUs but we're playing safe.
1568 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
1569 # know they might have memory configurations that could make use of highmem
1573 bool "High Memory Support"
1574 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
1576 config CPU_SUPPORTS_HIGHMEM
1579 config SYS_SUPPORTS_HIGHMEM
1582 config SYS_SUPPORTS_SMARTMIPS
1585 config ARCH_FLATMEM_ENABLE
1589 config ARCH_DISCONTIGMEM_ENABLE
1591 default y if SGI_IP27
1593 Say Y to support efficient handling of discontiguous physical memory,
1594 for architectures which are either NUMA (Non-Uniform Memory Access)
1595 or have huge holes in the physical address space for other reasons.
1596 See <file:Documentation/vm/numa> for more.
1598 config ARCH_SPARSEMEM_ENABLE
1600 select SPARSEMEM_STATIC
1604 depends on SYS_SUPPORTS_NUMA
1606 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
1607 Access). This option improves performance on systems with more
1608 than two nodes; on two node systems it is generally better to
1609 leave it disabled; on single node systems disable this option
1612 config SYS_SUPPORTS_NUMA
1618 depends on NEED_MULTIPLE_NODES
1623 bool "Multi-Processing support"
1624 depends on SYS_SUPPORTS_SMP
1627 This enables support for systems with more than one CPU. If you have
1628 a system with only one CPU, like most personal computers, say N. If
1629 you have a system with more than one CPU, say Y.
1631 If you say N here, the kernel will run on single and multiprocessor
1632 machines, but will use only one CPU of a multiprocessor machine. If
1633 you say Y here, the kernel will run on many, but not all,
1634 singleprocessor machines. On a singleprocessor machine, the kernel
1635 will run faster if you say N here.
1637 People using multiprocessor machines who say Y here should also say
1638 Y to "Enhanced Real Time Clock Support", below.
1640 See also the <file:Documentation/smp.txt> and the SMP-HOWTO
1641 available at <http://www.tldp.org/docs.html#howto>.
1643 If you don't know what to do here, say N.
1645 config SYS_SUPPORTS_SMP
1648 config NR_CPUS_DEFAULT_1
1651 config NR_CPUS_DEFAULT_2
1654 config NR_CPUS_DEFAULT_4
1657 config NR_CPUS_DEFAULT_8
1660 config NR_CPUS_DEFAULT_16
1663 config NR_CPUS_DEFAULT_32
1666 config NR_CPUS_DEFAULT_64
1670 int "Maximum number of CPUs (2-64)"
1671 range 1 64 if NR_CPUS_DEFAULT_1
1673 default "1" if NR_CPUS_DEFAULT_1
1674 default "2" if NR_CPUS_DEFAULT_2
1675 default "4" if NR_CPUS_DEFAULT_4
1676 default "8" if NR_CPUS_DEFAULT_8
1677 default "16" if NR_CPUS_DEFAULT_16
1678 default "32" if NR_CPUS_DEFAULT_32
1679 default "64" if NR_CPUS_DEFAULT_64
1681 This allows you to specify the maximum number of CPUs which this
1682 kernel will support. The maximum supported value is 32 for 32-bit
1683 kernel and 64 for 64-bit kernels; the minimum value which makes
1684 sense is 1 for Qemu (useful only for kernel debugging purposes)
1685 and 2 for all others.
1687 This is purely to save memory - each supported CPU adds
1688 approximately eight kilobytes to the kernel image. For best
1689 performance should round up your number of processors to the next
1693 # Timer Interrupt Frequency Configuration
1697 prompt "Timer frequency"
1700 Allows the configuration of the timer frequency.
1703 bool "48 HZ" if SYS_SUPPORTS_48HZ
1706 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
1709 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
1712 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
1715 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
1718 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
1721 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
1725 config SYS_SUPPORTS_48HZ
1728 config SYS_SUPPORTS_100HZ
1731 config SYS_SUPPORTS_128HZ
1734 config SYS_SUPPORTS_250HZ
1737 config SYS_SUPPORTS_256HZ
1740 config SYS_SUPPORTS_1000HZ
1743 config SYS_SUPPORTS_1024HZ
1746 config SYS_SUPPORTS_ARBIT_HZ
1748 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
1749 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
1750 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
1751 !SYS_SUPPORTS_1024HZ
1756 default 100 if HZ_100
1757 default 128 if HZ_128
1758 default 250 if HZ_250
1759 default 256 if HZ_256
1760 default 1000 if HZ_1000
1761 default 1024 if HZ_1024
1763 source "kernel/Kconfig.preempt"
1765 config MIPS_INSANE_LARGE
1766 bool "Support for large 64-bit configurations"
1767 depends on CPU_R10000 && 64BIT
1769 MIPS R10000 does support a 44 bit / 16TB address space as opposed to
1770 previous 64-bit processors which only supported 40 bit / 1TB. If you
1771 need processes of more than 1TB virtual address space, say Y here.
1772 This will result in additional memory usage, so it is not
1773 recommended for normal users.
1776 bool "Kexec system call (EXPERIMENTAL)"
1777 depends on EXPERIMENTAL
1779 kexec is a system call that implements the ability to shutdown your
1780 current kernel, and to start another kernel. It is like a reboot
1781 but it is independent of the system firmware. And like a reboot
1782 you can start any kernel with it, not just Linux.
1784 The name comes from the similiarity to the exec system call.
1786 It is an ongoing process to be certain the hardware in a machine
1787 is properly shutdown, so do not be surprised if this code does not
1788 initially work for you. It may help to enable device hotplugging
1789 support. As of this writing the exact hardware interface is
1790 strongly in flux, so no good recommendation can be made.
1793 bool "Enable seccomp to safely compute untrusted bytecode"
1794 depends on PROC_FS && BROKEN
1797 This kernel feature is useful for number crunching applications
1798 that may need to compute untrusted bytecode during their
1799 execution. By using pipes or other transports made available to
1800 the process as file descriptors supporting the read/write
1801 syscalls, it's possible to isolate those applications in
1802 their own address space using seccomp. Once seccomp is
1803 enabled via /proc/<pid>/seccomp, it cannot be disabled
1804 and the task is only allowed to execute a few safe syscalls
1805 defined by each seccomp mode.
1807 If unsure, say Y. Only embedded should say N here.
1811 config RWSEM_GENERIC_SPINLOCK
1815 config LOCKDEP_SUPPORT
1819 config STACKTRACE_SUPPORT
1823 source "init/Kconfig"
1825 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
1833 bool "Support for PCI controller"
1834 depends on HW_HAS_PCI
1836 Find out whether you have a PCI motherboard. PCI is the name of a
1837 bus system, i.e. the way the CPU talks to the other stuff inside
1838 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
1841 The PCI-HOWTO, available from
1842 <http://www.tldp.org/docs.html#howto>, contains valuable
1843 information about which PCI hardware does work under Linux and which
1850 source "drivers/pci/Kconfig"
1853 # ISA support is now enabled via select. Too many systems still have the one
1854 # or other ISA chip on the board that users don't know about so don't expect
1855 # users to choose the right thing ...
1862 depends on HW_HAS_EISA
1864 select GENERIC_ISA_DMA
1866 The Extended Industry Standard Architecture (EISA) bus was
1867 developed as an open alternative to the IBM MicroChannel bus.
1869 The EISA bus provided some of the features of the IBM MicroChannel
1870 bus while maintaining backward compatibility with cards made for
1871 the older ISA bus. The EISA bus saw limited use between 1988 and
1872 1995 when it was made obsolete by the PCI bus.
1874 Say Y here if you are building a kernel for an EISA-based machine.
1878 source "drivers/eisa/Kconfig"
1881 bool "TURBOchannel support"
1882 depends on MACH_DECSTATION
1884 TurboChannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
1885 processors. Documentation on writing device drivers for TurboChannel
1887 <http://www.cs.arizona.edu/computer.help/policy/DIGITAL_unix/AA-PS3HD-TET1_html/TITLE.html>.
1890 # bool "Access.Bus support"
1900 source "drivers/pcmcia/Kconfig"
1902 source "drivers/pci/hotplug/Kconfig"
1906 menu "Executable file formats"
1908 source "fs/Kconfig.binfmt"
1914 bool "Use 64-bit ELF format for building"
1917 A 64-bit kernel is usually built using the 64-bit ELF binary object
1918 format as it's one that allows arbitrary 64-bit constructs. For
1919 kernels that are loaded within the KSEG compatibility segments the
1920 32-bit ELF format can optionally be used resulting in a somewhat
1921 smaller binary, but this option is not explicitly supported by the
1922 toolchain and since binutils 2.14 it does not even work at all.
1924 Say Y to use the 64-bit format or N to use the 32-bit one.
1929 bool "Include IRIX binary compatibility"
1930 depends on CPU_BIG_ENDIAN && 32BIT && BROKEN
1932 config MIPS32_COMPAT
1933 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
1936 Select this option if you want Linux/MIPS 32-bit binary
1937 compatibility. Since all software available for Linux/MIPS is
1938 currently 32-bit you should say Y here.
1942 depends on MIPS32_COMPAT
1945 config SYSVIPC_COMPAT
1947 depends on COMPAT && SYSVIPC
1951 bool "Kernel support for o32 binaries"
1952 depends on MIPS32_COMPAT
1954 Select this option if you want to run o32 binaries. These are pure
1955 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
1956 existing binaries are in this format.
1961 bool "Kernel support for n32 binaries"
1962 depends on MIPS32_COMPAT
1964 Select this option if you want to run n32 binaries. These are
1965 64-bit binaries using 32-bit quantities for addressing and certain
1966 data that would normally be 64-bit. They are used in special
1973 default y if MIPS32_O32 || MIPS32_N32
1977 menu "Power management options"
1979 source "kernel/power/Kconfig"
1983 source "net/Kconfig"
1985 source "drivers/Kconfig"
1989 source "arch/mips/oprofile/Kconfig"
1991 source "arch/mips/Kconfig.debug"
1993 source "security/Kconfig"
1995 source "crypto/Kconfig"
1997 source "lib/Kconfig"