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_BIG_ENDIAN
32 select SYS_SUPPORTS_KGDB
34 The eXcite is a smart camera platform manufactured by
35 Basler Vision Technologies AG.
37 config BASLER_EXCITE_PROTOTYPE
38 bool "Support for pre-release units"
39 depends on BASLER_EXCITE
42 Pre-series (prototype) units are different from later ones in
43 some ways. Select this option if you have one of these. Please
44 note that a kernel built with this option selected will not be
45 able to run on normal units.
49 select DMA_NONCOHERENT
53 select PCI_GT64XXX_PCI0
54 select SYS_HAS_CPU_NEVADA
55 select SYS_HAS_EARLY_PRINTK
56 select SYS_SUPPORTS_32BIT_KERNEL
57 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
58 select SYS_SUPPORTS_LITTLE_ENDIAN
59 select GENERIC_HARDIRQS_NO__DO_IRQ
61 config MACH_DECSTATION
64 select DMA_NONCOHERENT
67 select SYS_HAS_CPU_R3000
68 select SYS_HAS_CPU_R4X00
69 select SYS_SUPPORTS_32BIT_KERNEL
70 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
71 select SYS_SUPPORTS_LITTLE_ENDIAN
72 select SYS_SUPPORTS_128HZ
73 select SYS_SUPPORTS_256HZ
74 select SYS_SUPPORTS_1024HZ
76 This enables support for DEC's MIPS based workstations. For details
77 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
78 DECstation porting pages on <http://decstation.unix-ag.org/>.
80 If you have one of the following DECstation Models you definitely
81 want to choose R4xx0 for the CPU Type:
88 otherwise choose R3000.
91 bool "Jazz family of machines"
94 select ARCH_MAY_HAVE_PC_FDC
95 select GENERIC_ISA_DMA
99 select SYS_HAS_CPU_R4X00
100 select SYS_SUPPORTS_32BIT_KERNEL
101 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
102 select SYS_SUPPORTS_100HZ
103 select GENERIC_HARDIRQS_NO__DO_IRQ
105 This a family of machines based on the MIPS R4030 chipset which was
106 used by several vendors to build RISC/os and Windows NT workstations.
107 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millenium and
108 Olivetti M700-10 workstations.
111 bool "Lemote Fulong mini-PC"
112 select ARCH_SPARSEMEM_ENABLE
113 select SYS_HAS_CPU_LOONGSON2
114 select DMA_NONCOHERENT
117 select HAVE_STD_PC_SERIAL_PORT
122 select SYS_SUPPORTS_32BIT_KERNEL
123 select SYS_SUPPORTS_64BIT_KERNEL
124 select SYS_SUPPORTS_LITTLE_ENDIAN
125 select SYS_SUPPORTS_HIGHMEM
126 select SYS_HAS_EARLY_PRINTK
127 select GENERIC_HARDIRQS_NO__DO_IRQ
128 select GENERIC_ISA_DMA_SUPPORT_BROKEN
131 Lemote Fulong mini-PC board based on the Chinese Loongson-2E CPU and
135 bool "MIPS Atlas board"
137 select DMA_NONCOHERENT
138 select SYS_HAS_EARLY_PRINTK
141 select MIPS_BOARDS_GEN
143 select PCI_GT64XXX_PCI0
145 select RM7000_CPU_SCACHE
147 select SYS_HAS_CPU_MIPS32_R1
148 select SYS_HAS_CPU_MIPS32_R2
149 select SYS_HAS_CPU_MIPS64_R1
150 select SYS_HAS_CPU_NEVADA
151 select SYS_HAS_CPU_RM7000
152 select SYS_SUPPORTS_32BIT_KERNEL
153 select SYS_SUPPORTS_64BIT_KERNEL
154 select SYS_SUPPORTS_BIG_ENDIAN
155 select SYS_SUPPORTS_LITTLE_ENDIAN
156 select SYS_SUPPORTS_MULTITHREADING if EXPERIMENTAL
157 select SYS_SUPPORTS_SMARTMIPS
158 select GENERIC_HARDIRQS_NO__DO_IRQ
160 This enables support for the MIPS Technologies Atlas evaluation
164 bool "MIPS Malta board"
165 select ARCH_MAY_HAVE_PC_FDC
167 select DMA_NONCOHERENT
168 select GENERIC_ISA_DMA
172 select MIPS_BOARDS_GEN
174 select MIPS_CPU_SCACHE
175 select PCI_GT64XXX_PCI0
178 select SYS_HAS_CPU_MIPS32_R1
179 select SYS_HAS_CPU_MIPS32_R2
180 select SYS_HAS_CPU_MIPS64_R1
181 select SYS_HAS_CPU_NEVADA
182 select SYS_HAS_CPU_RM7000
183 select SYS_HAS_EARLY_PRINTK
184 select SYS_SUPPORTS_32BIT_KERNEL
185 select SYS_SUPPORTS_64BIT_KERNEL
186 select SYS_SUPPORTS_BIG_ENDIAN
187 select SYS_SUPPORTS_LITTLE_ENDIAN
188 select SYS_SUPPORTS_MULTITHREADING
189 select SYS_SUPPORTS_SMARTMIPS
191 This enables support for the MIPS Technologies Malta evaluation
195 bool "MIPS SEAD board"
197 select DMA_NONCOHERENT
198 select SYS_HAS_EARLY_PRINTK
199 select MIPS_BOARDS_GEN
200 select SYS_HAS_CPU_MIPS32_R1
201 select SYS_HAS_CPU_MIPS32_R2
202 select SYS_HAS_CPU_MIPS64_R1
203 select SYS_SUPPORTS_32BIT_KERNEL
204 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
205 select SYS_SUPPORTS_BIG_ENDIAN
206 select SYS_SUPPORTS_LITTLE_ENDIAN
207 select SYS_SUPPORTS_SMARTMIPS
209 This enables support for the MIPS Technologies SEAD evaluation
213 bool 'MIPS simulator (MIPSsim)'
214 select DMA_NONCOHERENT
215 select SYS_HAS_EARLY_PRINTK
218 select SYS_HAS_CPU_MIPS32_R1
219 select SYS_HAS_CPU_MIPS32_R2
220 select SYS_HAS_EARLY_PRINTK
221 select SYS_SUPPORTS_32BIT_KERNEL
222 select SYS_SUPPORTS_BIG_ENDIAN
223 select SYS_SUPPORTS_MULTITHREADING
224 select SYS_SUPPORTS_LITTLE_ENDIAN
226 This option enables support for MIPS Technologies MIPSsim software
230 bool "NEC EMMA2RH Mark-eins"
231 select DMA_NONCOHERENT
235 select SYS_SUPPORTS_32BIT_KERNEL
236 select SYS_SUPPORTS_BIG_ENDIAN
237 select SYS_SUPPORTS_LITTLE_ENDIAN
238 select SYS_HAS_CPU_R5000
240 This enables support for the R5432-based NEC Mark-eins
241 boards with R5500 CPU.
244 bool "NEC VR4100 series based machines"
245 select SYS_HAS_CPU_VR41XX
246 select GENERIC_HARDIRQS_NO__DO_IRQ
249 bool "Philips PNX8550 based JBS board"
251 select SYS_SUPPORTS_LITTLE_ENDIAN
253 config PNX8550_STB810
254 bool "Philips PNX8550 based STB810 board"
256 select SYS_SUPPORTS_LITTLE_ENDIAN
259 bool "PMC-Sierra MSP chipsets"
260 depends on EXPERIMENTAL
261 select DMA_NONCOHERENT
263 select NO_EXCEPT_FILL
265 select SYS_HAS_CPU_MIPS32_R1
266 select SYS_HAS_CPU_MIPS32_R2
267 select SYS_SUPPORTS_32BIT_KERNEL
268 select SYS_SUPPORTS_BIG_ENDIAN
269 select SYS_SUPPORTS_KGDB
272 select SERIAL_8250_CONSOLE
274 This adds support for the PMC-Sierra family of Multi-Service
275 Processor System-On-A-Chips. These parts include a number
276 of integrated peripherals, interfaces and DSPs in addition to
277 a variety of MIPS cores.
280 bool "PMC-Sierra Yosemite eval board"
287 select SYS_HAS_CPU_RM9000
288 select SYS_HAS_EARLY_PRINTK
289 select SYS_SUPPORTS_32BIT_KERNEL
290 select SYS_SUPPORTS_64BIT_KERNEL
291 select SYS_SUPPORTS_BIG_ENDIAN
292 select SYS_SUPPORTS_HIGHMEM
293 select SYS_SUPPORTS_KGDB
294 select SYS_SUPPORTS_SMP
296 Yosemite is an evaluation board for the RM9000x2 processor
297 manufactured by PMC-Sierra.
302 select GENERIC_ISA_DMA
303 select HAVE_STD_PC_SERIAL_PORT
308 select SYS_HAS_CPU_MIPS32_R1
309 select SYS_SUPPORTS_32BIT_KERNEL
310 select SYS_SUPPORTS_BIG_ENDIAN
311 select SYS_SUPPORTS_LITTLE_ENDIAN
312 select ARCH_SPARSEMEM_ENABLE
313 select GENERIC_HARDIRQS_NO__DO_IRQ
314 select NR_CPUS_DEFAULT_1
315 select SYS_SUPPORTS_SMP
317 Qemu is a software emulator which among other architectures also
318 can simulate a MIPS32 4Kc system. This patch adds support for the
319 system architecture that currently is being simulated by Qemu. It
320 will eventually be removed again when Qemu has the capability to
321 simulate actual MIPS hardware platforms. More information on Qemu
322 can be found at http://www.linux-mips.org/wiki/Qemu.
325 bool "SGI IP22 (Indy/Indigo2)"
329 select DMA_NONCOHERENT
331 select IP22_CPU_SCACHE
333 select GENERIC_ISA_DMA_SUPPORT_BROKEN
335 select SYS_HAS_CPU_R4X00
336 select SYS_HAS_CPU_R5000
337 select SYS_HAS_EARLY_PRINTK
338 select SYS_SUPPORTS_32BIT_KERNEL
339 select SYS_SUPPORTS_64BIT_KERNEL
340 select SYS_SUPPORTS_BIG_ENDIAN
342 This are the SGI Indy, Challenge S and Indigo2, as well as certain
343 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
344 that runs on these, say Y here.
347 bool "SGI IP27 (Origin200/2000)"
352 select SYS_HAS_EARLY_PRINTK
354 select NR_CPUS_DEFAULT_64
356 select SYS_HAS_CPU_R10000
357 select SYS_SUPPORTS_64BIT_KERNEL
358 select SYS_SUPPORTS_BIG_ENDIAN
359 select SYS_SUPPORTS_KGDB
360 select SYS_SUPPORTS_NUMA
361 select SYS_SUPPORTS_SMP
362 select GENERIC_HARDIRQS_NO__DO_IRQ
364 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
365 workstations. To compile a Linux kernel that runs on these, say Y
373 select DMA_NONCOHERENT
375 select R5000_CPU_SCACHE
376 select RM7000_CPU_SCACHE
377 select SYS_HAS_CPU_R5000
378 select SYS_HAS_CPU_R10000 if BROKEN
379 select SYS_HAS_CPU_RM7000
380 select SYS_HAS_CPU_NEVADA
381 select SYS_SUPPORTS_64BIT_KERNEL
382 select SYS_SUPPORTS_BIG_ENDIAN
384 If you want this kernel to run on SGI O2 workstation, say Y here.
387 bool "Sibyte BCM91120C-CRhine"
388 depends on EXPERIMENTAL
391 select SIBYTE_BCM1120
393 select SYS_HAS_CPU_SB1
394 select SYS_SUPPORTS_BIG_ENDIAN
395 select SYS_SUPPORTS_LITTLE_ENDIAN
398 bool "Sibyte BCM91120x-Carmel"
399 depends on EXPERIMENTAL
402 select SIBYTE_BCM1120
404 select SYS_HAS_CPU_SB1
405 select SYS_SUPPORTS_BIG_ENDIAN
406 select SYS_SUPPORTS_LITTLE_ENDIAN
409 bool "Sibyte BCM91125C-CRhone"
410 depends on EXPERIMENTAL
413 select SIBYTE_BCM1125
415 select SYS_HAS_CPU_SB1
416 select SYS_SUPPORTS_BIG_ENDIAN
417 select SYS_SUPPORTS_HIGHMEM
418 select SYS_SUPPORTS_LITTLE_ENDIAN
421 bool "Sibyte BCM91125E-Rhone"
422 depends on EXPERIMENTAL
425 select SIBYTE_BCM1125H
427 select SYS_HAS_CPU_SB1
428 select SYS_SUPPORTS_BIG_ENDIAN
429 select SYS_SUPPORTS_LITTLE_ENDIAN
432 bool "Sibyte BCM91250A-SWARM"
435 select NR_CPUS_DEFAULT_2
438 select SYS_HAS_CPU_SB1
439 select SYS_SUPPORTS_BIG_ENDIAN
440 select SYS_SUPPORTS_HIGHMEM
441 select SYS_SUPPORTS_KGDB
442 select SYS_SUPPORTS_LITTLE_ENDIAN
444 config SIBYTE_LITTLESUR
445 bool "Sibyte BCM91250C2-LittleSur"
446 depends on EXPERIMENTAL
449 select NR_CPUS_DEFAULT_2
452 select SYS_HAS_CPU_SB1
453 select SYS_SUPPORTS_BIG_ENDIAN
454 select SYS_SUPPORTS_HIGHMEM
455 select SYS_SUPPORTS_LITTLE_ENDIAN
457 config SIBYTE_SENTOSA
458 bool "Sibyte BCM91250E-Sentosa"
459 depends on EXPERIMENTAL
462 select NR_CPUS_DEFAULT_2
465 select SYS_HAS_CPU_SB1
466 select SYS_SUPPORTS_BIG_ENDIAN
467 select SYS_SUPPORTS_LITTLE_ENDIAN
469 config SIBYTE_PTSWARM
470 bool "Sibyte BCM91250PT-PTSWARM"
471 depends on EXPERIMENTAL
474 select NR_CPUS_DEFAULT_2
477 select SYS_HAS_CPU_SB1
478 select SYS_SUPPORTS_BIG_ENDIAN
479 select SYS_SUPPORTS_HIGHMEM
480 select SYS_SUPPORTS_LITTLE_ENDIAN
483 bool "Sibyte BCM91480B-BigSur"
486 select NR_CPUS_DEFAULT_4
488 select SIBYTE_BCM1x80
490 select SYS_HAS_CPU_SB1
491 select SYS_SUPPORTS_BIG_ENDIAN
492 select SYS_SUPPORTS_LITTLE_ENDIAN
495 bool "SNI RM200/300/400"
496 select ARC if CPU_LITTLE_ENDIAN
497 select ARC32 if CPU_LITTLE_ENDIAN
498 select ARCH_MAY_HAVE_PC_FDC
500 select DMA_NONCOHERENT
501 select GENERIC_ISA_DMA
508 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
509 select SYS_HAS_CPU_R4X00
510 select SYS_HAS_CPU_R5000
511 select SYS_HAS_CPU_R10000
512 select R5000_CPU_SCACHE
513 select SYS_HAS_EARLY_PRINTK
514 select SYS_SUPPORTS_32BIT_KERNEL
515 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
516 select SYS_SUPPORTS_BIG_ENDIAN
517 select SYS_SUPPORTS_HIGHMEM
518 select SYS_SUPPORTS_LITTLE_ENDIAN
520 The SNI RM200/300/400 are MIPS-based machines manufactured by
521 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
522 Technology and now in turn merged with Fujitsu. Say Y here to
523 support this machine type.
525 config TOSHIBA_JMR3927
526 bool "Toshiba JMR-TX3927 board"
527 select DMA_NONCOHERENT
532 select SYS_HAS_CPU_TX39XX
533 select SYS_SUPPORTS_32BIT_KERNEL
534 select SYS_SUPPORTS_LITTLE_ENDIAN
535 select SYS_SUPPORTS_BIG_ENDIAN
536 select GENERIC_HARDIRQS_NO__DO_IRQ
538 config TOSHIBA_RBTX4927
539 bool "Toshiba RBTX49[23]7 board"
540 select DMA_NONCOHERENT
541 select HAS_TXX9_SERIAL
545 select I8259 if TOSHIBA_FPCIB0
547 select SYS_HAS_CPU_TX49XX
548 select SYS_SUPPORTS_32BIT_KERNEL
549 select SYS_SUPPORTS_64BIT_KERNEL
550 select SYS_SUPPORTS_LITTLE_ENDIAN
551 select SYS_SUPPORTS_BIG_ENDIAN
552 select SYS_SUPPORTS_KGDB
553 select GENERIC_HARDIRQS_NO__DO_IRQ
555 This Toshiba board is based on the TX4927 processor. Say Y here to
556 support this machine type
558 config TOSHIBA_RBTX4938
559 bool "Toshiba RBTX4938 board"
560 select DMA_NONCOHERENT
561 select HAS_TXX9_SERIAL
566 select SYS_HAS_CPU_TX49XX
567 select SYS_SUPPORTS_32BIT_KERNEL
568 select SYS_SUPPORTS_LITTLE_ENDIAN
569 select SYS_SUPPORTS_BIG_ENDIAN
570 select SYS_SUPPORTS_KGDB
571 select GENERIC_HARDIRQS_NO__DO_IRQ
574 This Toshiba board is based on the TX4938 processor. Say Y here to
575 support this machine type
578 bool "Wind River PPMC board"
581 select DMA_NONCOHERENT
583 select PCI_GT64XXX_PCI0
585 select SYS_HAS_CPU_MIPS32_R1
586 select SYS_HAS_CPU_MIPS32_R2
587 select SYS_HAS_CPU_MIPS64_R1
588 select SYS_HAS_CPU_NEVADA
589 select SYS_HAS_CPU_RM7000
590 select SYS_SUPPORTS_32BIT_KERNEL
591 select SYS_SUPPORTS_64BIT_KERNEL
592 select SYS_SUPPORTS_BIG_ENDIAN
593 select SYS_SUPPORTS_LITTLE_ENDIAN
595 This enables support for the Wind River MIPS32 4KC PPMC evaluation
596 board, which is based on GT64120 bridge chip.
600 source "arch/mips/au1000/Kconfig"
601 source "arch/mips/jazz/Kconfig"
602 source "arch/mips/pmc-sierra/Kconfig"
603 source "arch/mips/sgi-ip27/Kconfig"
604 source "arch/mips/sibyte/Kconfig"
605 source "arch/mips/tx4927/Kconfig"
606 source "arch/mips/tx4938/Kconfig"
607 source "arch/mips/vr41xx/Kconfig"
611 config RWSEM_GENERIC_SPINLOCK
615 config RWSEM_XCHGADD_ALGORITHM
618 config ARCH_HAS_ILOG2_U32
622 config ARCH_HAS_ILOG2_U64
626 config GENERIC_FIND_NEXT_BIT
630 config GENERIC_HWEIGHT
634 config GENERIC_CALIBRATE_DELAY
642 config SCHED_NO_NO_OMIT_FRAME_POINTER
646 config GENERIC_HARDIRQS_NO__DO_IRQ
651 # Select some configuration options automatically based on user selections.
656 config ARCH_MAY_HAVE_PC_FDC
670 select DMA_NEED_PCI_MAP_STATE
672 config DMA_NONCOHERENT
674 select DMA_NEED_PCI_MAP_STATE
676 config DMA_NEED_PCI_MAP_STATE
680 bool "Early printk" if EMBEDDED && DEBUG_KERNEL
681 depends on SYS_HAS_EARLY_PRINTK
684 This option enables special console drivers which allow the kernel
685 to print messages very early in the bootup process.
687 This is useful for kernel debugging when your machine crashes very
688 early before the console code is initialized. For normal operation,
689 it is not recommended because it looks ugly on some machines and
690 doesn't cooperate with an X server. You should normally say N here,
691 unless you want to debug such a crash.
693 config SYS_HAS_EARLY_PRINTK
709 config MIPS_DISABLE_OBSOLETE_IDE
715 config GENERIC_ISA_DMA
717 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
719 config GENERIC_ISA_DMA_SUPPORT_BROKEN
721 select GENERIC_ISA_DMA
727 # Endianess selection. Sufficiently obscure so many users don't know what to
728 # answer,so we try hard to limit the available choices. Also the use of a
729 # choice statement should be more obvious to the user.
732 prompt "Endianess selection"
734 Some MIPS machines can be configured for either little or big endian
735 byte order. These modes require different kernels and a different
736 Linux distribution. In general there is one preferred byteorder for a
737 particular system but some systems are just as commonly used in the
738 one or the other endianness.
740 config CPU_BIG_ENDIAN
742 depends on SYS_SUPPORTS_BIG_ENDIAN
744 config CPU_LITTLE_ENDIAN
746 depends on SYS_SUPPORTS_LITTLE_ENDIAN
751 config SYS_SUPPORTS_APM_EMULATION
754 config SYS_SUPPORTS_BIG_ENDIAN
757 config SYS_SUPPORTS_LITTLE_ENDIAN
778 config MIPS_BOARDS_GEN
781 config PCI_GT64XXX_PCI0
784 config NO_EXCEPT_FILL
789 select HAS_TXX9_SERIAL
801 select DMA_NONCOHERENT
803 select SYS_HAS_CPU_MIPS32_R1
804 select SYS_HAS_EARLY_PRINTK
805 select SYS_SUPPORTS_32BIT_KERNEL
806 select GENERIC_HARDIRQS_NO__DO_IRQ
807 select SYS_SUPPORTS_KGDB
827 config MIPS_L1_CACHE_SHIFT
829 default "4" if MACH_DECSTATION
830 default "7" if SGI_IP27 || SNI_RM
831 default "4" if PMC_MSP4200_EVAL
834 config HAVE_STD_PC_SERIAL_PORT
838 bool "ARC console support"
839 depends on SGI_IP22 || (SNI_RM && CPU_LITTLE_ENDIAN)
843 depends on MACH_JAZZ || SNI_RM || SGI_IP32
848 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP32
865 depends on SYS_HAS_CPU_LOONGSON2
866 select CPU_SUPPORTS_32BIT_KERNEL
867 select CPU_SUPPORTS_64BIT_KERNEL
868 select CPU_SUPPORTS_HIGHMEM
870 The Loongson 2E processor implements the MIPS III instruction set
871 with many extensions.
874 bool "MIPS32 Release 1"
875 depends on SYS_HAS_CPU_MIPS32_R1
877 select CPU_HAS_PREFETCH
878 select CPU_SUPPORTS_32BIT_KERNEL
879 select CPU_SUPPORTS_HIGHMEM
881 Choose this option to build a kernel for release 1 or later of the
882 MIPS32 architecture. Most modern embedded systems with a 32-bit
883 MIPS processor are based on a MIPS32 processor. If you know the
884 specific type of processor in your system, choose those that one
885 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
886 Release 2 of the MIPS32 architecture is available since several
887 years so chances are you even have a MIPS32 Release 2 processor
888 in which case you should choose CPU_MIPS32_R2 instead for better
892 bool "MIPS32 Release 2"
893 depends on SYS_HAS_CPU_MIPS32_R2
895 select CPU_HAS_PREFETCH
896 select CPU_SUPPORTS_32BIT_KERNEL
897 select CPU_SUPPORTS_HIGHMEM
899 Choose this option to build a kernel for release 2 or later of the
900 MIPS32 architecture. Most modern embedded systems with a 32-bit
901 MIPS processor are based on a MIPS32 processor. If you know the
902 specific type of processor in your system, choose those that one
903 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
906 bool "MIPS64 Release 1"
907 depends on SYS_HAS_CPU_MIPS64_R1
909 select CPU_HAS_PREFETCH
910 select CPU_SUPPORTS_32BIT_KERNEL
911 select CPU_SUPPORTS_64BIT_KERNEL
912 select CPU_SUPPORTS_HIGHMEM
914 Choose this option to build a kernel for release 1 or later of the
915 MIPS64 architecture. Many modern embedded systems with a 64-bit
916 MIPS processor are based on a MIPS64 processor. If you know the
917 specific type of processor in your system, choose those that one
918 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
919 Release 2 of the MIPS64 architecture is available since several
920 years so chances are you even have a MIPS64 Release 2 processor
921 in which case you should choose CPU_MIPS64_R2 instead for better
925 bool "MIPS64 Release 2"
926 depends on SYS_HAS_CPU_MIPS64_R2
928 select CPU_HAS_PREFETCH
929 select CPU_SUPPORTS_32BIT_KERNEL
930 select CPU_SUPPORTS_64BIT_KERNEL
931 select CPU_SUPPORTS_HIGHMEM
933 Choose this option to build a kernel for release 2 or later of the
934 MIPS64 architecture. Many modern embedded systems with a 64-bit
935 MIPS processor are based on a MIPS64 processor. If you know the
936 specific type of processor in your system, choose those that one
937 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
941 depends on SYS_HAS_CPU_R3000
943 select CPU_SUPPORTS_32BIT_KERNEL
944 select CPU_SUPPORTS_HIGHMEM
946 Please make sure to pick the right CPU type. Linux/MIPS is not
947 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
948 *not* work on R4000 machines and vice versa. However, since most
949 of the supported machines have an R4000 (or similar) CPU, R4x00
950 might be a safe bet. If the resulting kernel does not work,
951 try to recompile with R3000.
955 depends on SYS_HAS_CPU_TX39XX
956 select CPU_SUPPORTS_32BIT_KERNEL
960 depends on SYS_HAS_CPU_VR41XX
961 select CPU_SUPPORTS_32BIT_KERNEL
962 select CPU_SUPPORTS_64BIT_KERNEL
964 The options selects support for the NEC VR4100 series of processors.
965 Only choose this option if you have one of these processors as a
966 kernel built with this option will not run on any other type of
967 processor or vice versa.
971 depends on SYS_HAS_CPU_R4300
973 select CPU_SUPPORTS_32BIT_KERNEL
974 select CPU_SUPPORTS_64BIT_KERNEL
976 MIPS Technologies R4300-series processors.
980 depends on SYS_HAS_CPU_R4X00
982 select CPU_SUPPORTS_32BIT_KERNEL
983 select CPU_SUPPORTS_64BIT_KERNEL
985 MIPS Technologies R4000-series processors other than 4300, including
986 the R4000, R4400, R4600, and 4700.
990 depends on SYS_HAS_CPU_TX49XX
992 select CPU_HAS_PREFETCH
993 select CPU_SUPPORTS_32BIT_KERNEL
994 select CPU_SUPPORTS_64BIT_KERNEL
998 depends on SYS_HAS_CPU_R5000
1000 select CPU_SUPPORTS_32BIT_KERNEL
1001 select CPU_SUPPORTS_64BIT_KERNEL
1003 MIPS Technologies R5000-series processors other than the Nevada.
1007 depends on SYS_HAS_CPU_R5432
1009 select CPU_SUPPORTS_32BIT_KERNEL
1010 select CPU_SUPPORTS_64BIT_KERNEL
1014 depends on EXPERIMENTAL
1016 depends on SYS_HAS_CPU_R6000
1017 select CPU_SUPPORTS_32BIT_KERNEL
1019 MIPS Technologies R6000 and R6000A series processors. Note these
1020 processors are extremely rare and the support for them is incomplete.
1024 depends on SYS_HAS_CPU_NEVADA
1026 select CPU_SUPPORTS_32BIT_KERNEL
1027 select CPU_SUPPORTS_64BIT_KERNEL
1029 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1033 depends on EXPERIMENTAL
1034 depends on SYS_HAS_CPU_R8000
1036 select CPU_HAS_PREFETCH
1037 select CPU_SUPPORTS_64BIT_KERNEL
1039 MIPS Technologies R8000 processors. Note these processors are
1040 uncommon and the support for them is incomplete.
1044 depends on SYS_HAS_CPU_R10000
1046 select CPU_HAS_PREFETCH
1047 select CPU_SUPPORTS_32BIT_KERNEL
1048 select CPU_SUPPORTS_64BIT_KERNEL
1049 select CPU_SUPPORTS_HIGHMEM
1051 MIPS Technologies R10000-series processors.
1055 depends on SYS_HAS_CPU_RM7000
1057 select CPU_HAS_PREFETCH
1058 select CPU_SUPPORTS_32BIT_KERNEL
1059 select CPU_SUPPORTS_64BIT_KERNEL
1060 select CPU_SUPPORTS_HIGHMEM
1064 depends on SYS_HAS_CPU_RM9000
1066 select CPU_HAS_PREFETCH
1067 select CPU_SUPPORTS_32BIT_KERNEL
1068 select CPU_SUPPORTS_64BIT_KERNEL
1069 select CPU_SUPPORTS_HIGHMEM
1070 select WEAK_ORDERING
1074 depends on SYS_HAS_CPU_SB1
1076 select CPU_SUPPORTS_32BIT_KERNEL
1077 select CPU_SUPPORTS_64BIT_KERNEL
1078 select CPU_SUPPORTS_HIGHMEM
1079 select WEAK_ORDERING
1083 config SYS_HAS_CPU_LOONGSON2
1086 config SYS_HAS_CPU_MIPS32_R1
1089 config SYS_HAS_CPU_MIPS32_R2
1092 config SYS_HAS_CPU_MIPS64_R1
1095 config SYS_HAS_CPU_MIPS64_R2
1098 config SYS_HAS_CPU_R3000
1101 config SYS_HAS_CPU_TX39XX
1104 config SYS_HAS_CPU_VR41XX
1107 config SYS_HAS_CPU_R4300
1110 config SYS_HAS_CPU_R4X00
1113 config SYS_HAS_CPU_TX49XX
1116 config SYS_HAS_CPU_R5000
1119 config SYS_HAS_CPU_R5432
1122 config SYS_HAS_CPU_R6000
1125 config SYS_HAS_CPU_NEVADA
1128 config SYS_HAS_CPU_R8000
1131 config SYS_HAS_CPU_R10000
1134 config SYS_HAS_CPU_RM7000
1137 config SYS_HAS_CPU_RM9000
1140 config SYS_HAS_CPU_SB1
1144 # CPU may reorder R->R, R->W, W->R, W->W
1145 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1147 config WEAK_ORDERING
1151 # CPU may reorder reads and writes beyond LL/SC
1152 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1154 config WEAK_REORDERING_BEYOND_LLSC
1159 # These two indicate any level of the MIPS32 and MIPS64 architecture
1163 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1167 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1170 # These two indicate the revision of the architecture, either Release 1 or Release 2
1174 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1178 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2
1180 config SYS_SUPPORTS_32BIT_KERNEL
1182 config SYS_SUPPORTS_64BIT_KERNEL
1184 config CPU_SUPPORTS_32BIT_KERNEL
1186 config CPU_SUPPORTS_64BIT_KERNEL
1193 prompt "Kernel code model"
1195 You should only select this option if you have a workload that
1196 actually benefits from 64-bit processing or if your machine has
1197 large memory. You will only be presented a single option in this
1198 menu if your system does not support both 32-bit and 64-bit kernels.
1201 bool "32-bit kernel"
1202 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1205 Select this option if you want to build a 32-bit kernel.
1207 bool "64-bit kernel"
1208 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1210 Select this option if you want to build a 64-bit kernel.
1215 prompt "Kernel page size"
1216 default PAGE_SIZE_4KB
1218 config PAGE_SIZE_4KB
1221 This option select the standard 4kB Linux page size. On some
1222 R3000-family processors this is the only available page size. Using
1223 4kB page size will minimize memory consumption and is therefore
1224 recommended for low memory systems.
1226 config PAGE_SIZE_8KB
1228 depends on EXPERIMENTAL && CPU_R8000
1230 Using 8kB page size will result in higher performance kernel at
1231 the price of higher memory consumption. This option is available
1232 only on the R8000 processor. Not that at the time of this writing
1233 this option is still high experimental; there are also issues with
1234 compatibility of user applications.
1236 config PAGE_SIZE_16KB
1238 depends on !CPU_R3000 && !CPU_TX39XX
1240 Using 16kB page size will result in higher performance kernel at
1241 the price of higher memory consumption. This option is available on
1242 all non-R3000 family processors. Note that you will need a suitable
1243 Linux distribution to support this.
1245 config PAGE_SIZE_64KB
1247 depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
1249 Using 64kB page size will result in higher performance kernel at
1250 the price of higher memory consumption. This option is available on
1251 all non-R3000 family processor. Not that at the time of this
1252 writing this option is still high experimental.
1259 config IP22_CPU_SCACHE
1264 # Support for a MIPS32 / MIPS64 style S-caches
1266 config MIPS_CPU_SCACHE
1270 config R5000_CPU_SCACHE
1274 config RM7000_CPU_SCACHE
1278 config SIBYTE_DMA_PAGEOPS
1279 bool "Use DMA to clear/copy pages"
1282 Instead of using the CPU to zero and copy pages, use a Data Mover
1283 channel. These DMA channels are otherwise unused by the standard
1284 SiByte Linux port. Seems to give a small performance benefit.
1286 config CPU_HAS_PREFETCH
1290 prompt "MIPS MT options"
1292 config MIPS_MT_DISABLED
1293 bool "Disable multithreading support."
1295 Use this option if your workload can't take advantage of
1296 MIPS hardware multithreading support. On systems that don't have
1297 the option of an MT-enabled processor this option will be the only
1298 option in this menu.
1301 bool "Use 1 TC on each available VPE for SMP"
1302 depends on SYS_SUPPORTS_MULTITHREADING
1303 select CPU_MIPSR2_IRQ_VI
1304 select CPU_MIPSR2_IRQ_EI
1305 select CPU_MIPSR2_SRS
1307 select NR_CPUS_DEFAULT_2
1309 select SYS_SUPPORTS_SMP
1311 This is a kernel model which is also known a VSMP or lately
1312 has been marketesed into SMVP.
1315 bool "SMTC: Use all TCs on all VPEs for SMP"
1316 depends on CPU_MIPS32_R2
1317 #depends on CPU_MIPS64_R2 # once there is hardware ...
1318 depends on SYS_SUPPORTS_MULTITHREADING
1319 select CPU_MIPSR2_IRQ_VI
1320 select CPU_MIPSR2_IRQ_EI
1321 select CPU_MIPSR2_SRS
1323 select NR_CPUS_DEFAULT_8
1325 select SYS_SUPPORTS_SMP
1327 This is a kernel model which is known a SMTC or lately has been
1328 marketesed into SMVP.
1335 config SYS_SUPPORTS_MULTITHREADING
1338 config MIPS_MT_FPAFF
1339 bool "Dynamic FPU affinity for FP-intensive threads"
1341 depends on MIPS_MT_SMP || MIPS_MT_SMTC
1343 config MIPS_VPE_LOADER
1344 bool "VPE loader support."
1345 depends on SYS_SUPPORTS_MULTITHREADING
1346 select CPU_MIPSR2_IRQ_VI
1347 select CPU_MIPSR2_IRQ_EI
1348 select CPU_MIPSR2_SRS
1351 Includes a loader for loading an elf relocatable object
1352 onto another VPE and running it.
1354 config MIPS_MT_SMTC_INSTANT_REPLAY
1355 bool "Low-latency Dispatch of Deferred SMTC IPIs"
1356 depends on MIPS_MT_SMTC && !PREEMPT
1359 SMTC pseudo-interrupts between TCs are deferred and queued
1360 if the target TC is interrupt-inhibited (IXMT). In the first
1361 SMTC prototypes, these queued IPIs were serviced on return
1362 to user mode, or on entry into the kernel idle loop. The
1363 INSTANT_REPLAY option dispatches them as part of local_irq_restore()
1364 processing, which adds runtime overhead (hence the option to turn
1365 it off), but ensures that IPIs are handled promptly even under
1366 heavy I/O interrupt load.
1368 config MIPS_MT_SMTC_IM_BACKSTOP
1369 bool "Use per-TC register bits as backstop for inhibited IM bits"
1370 depends on MIPS_MT_SMTC
1373 To support multiple TC microthreads acting as "CPUs" within
1374 a VPE, VPE-wide interrupt mask bits must be specially manipulated
1375 during interrupt handling. To support legacy drivers and interrupt
1376 controller management code, SMTC has a "backstop" to track and
1377 if necessary restore the interrupt mask. This has some performance
1378 impact on interrupt service overhead. Disable it only if you know
1381 config MIPS_MT_SMTC_IRQAFF
1382 bool "Support IRQ affinity API"
1383 depends on MIPS_MT_SMTC
1386 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
1387 for SMTC Linux kernel. Requires platform support, of which
1388 an example can be found in the MIPS kernel i8259 and Malta
1389 platform code. It is recommended that MIPS_MT_SMTC_INSTANT_REPLAY
1390 be enabled if MIPS_MT_SMTC_IRQAFF is used. Adds overhead to
1391 interrupt dispatch, and should be used only if you know what
1394 config MIPS_VPE_LOADER_TOM
1395 bool "Load VPE program into memory hidden from linux"
1396 depends on MIPS_VPE_LOADER
1399 The loader can use memory that is present but has been hidden from
1400 Linux using the kernel command line option "mem=xxMB". It's up to
1401 you to ensure the amount you put in the option and the space your
1402 program requires is less or equal to the amount physically present.
1404 # this should possibly be in drivers/char, but it is rather cpu related. Hmmm
1405 config MIPS_VPE_APSP_API
1406 bool "Enable support for AP/SP API (RTLX)"
1407 depends on MIPS_VPE_LOADER
1410 config MIPS_APSP_KSPD
1412 depends on MIPS_VPE_APSP_API
1415 KSPD is a kernel daemon that accepts syscall requests from the SP
1416 side, actions them and returns the results. It also handles the
1417 "exit" syscall notifying other kernel modules the SP program is
1418 exiting. You probably want to say yes here.
1420 config SB1_PASS_1_WORKAROUNDS
1422 depends on CPU_SB1_PASS_1
1425 config SB1_PASS_2_WORKAROUNDS
1427 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
1430 config SB1_PASS_2_1_WORKAROUNDS
1432 depends on CPU_SB1 && CPU_SB1_PASS_2
1435 config 64BIT_PHYS_ADDR
1441 config CPU_HAS_SMARTMIPS
1442 depends on SYS_SUPPORTS_SMARTMIPS
1443 bool "Support for the SmartMIPS ASE"
1445 SmartMIPS is a extension of the MIPS32 architecture aimed at
1446 increased security at both hardware and software level for
1447 smartcards. Enabling this option will allow proper use of the
1448 SmartMIPS instructions by Linux applications. However a kernel with
1449 this option will not work on a MIPS core without SmartMIPS core. If
1450 you don't know you probably don't have SmartMIPS and should say N
1456 config 64BIT_CONTEXT
1457 bool "Save 64bit integer registers"
1458 depends on 32BIT && CPU_LOONGSON2
1460 Loongson2 CPU is 64bit , when used in 32BIT mode, its integer
1461 registers can still be accessed as 64bit, mainly for multimedia
1462 instructions. We must have all 64bit save/restored to make sure
1463 those instructions to get correct result.
1466 # Vectored interrupt mode is an R2 feature
1468 config CPU_MIPSR2_IRQ_VI
1472 # Extended interrupt mode is an R2 feature
1474 config CPU_MIPSR2_IRQ_EI
1478 # Shadow registers are an R2 feature
1480 config CPU_MIPSR2_SRS
1485 depends on !CPU_R3000
1489 # Use the generic interrupt handling code in kernel/irq/:
1491 config GENERIC_HARDIRQS
1495 config GENERIC_IRQ_PROBE
1503 # - Highmem only makes sense for the 32-bit kernel.
1504 # - The current highmem code will only work properly on physically indexed
1505 # caches such as R3000, SB1, R7000 or those that look like they're virtually
1506 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
1507 # moment we protect the user and offer the highmem option only on machines
1508 # where it's known to be safe. This will not offer highmem on a few systems
1509 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
1510 # indexed CPUs but we're playing safe.
1511 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
1512 # know they might have memory configurations that could make use of highmem
1516 bool "High Memory Support"
1517 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
1519 config CPU_SUPPORTS_HIGHMEM
1522 config SYS_SUPPORTS_HIGHMEM
1525 config SYS_SUPPORTS_SMARTMIPS
1528 config ARCH_FLATMEM_ENABLE
1532 config ARCH_DISCONTIGMEM_ENABLE
1534 default y if SGI_IP27
1536 Say Y to support efficient handling of discontiguous physical memory,
1537 for architectures which are either NUMA (Non-Uniform Memory Access)
1538 or have huge holes in the physical address space for other reasons.
1539 See <file:Documentation/vm/numa> for more.
1541 config ARCH_SPARSEMEM_ENABLE
1543 select SPARSEMEM_STATIC
1547 depends on SYS_SUPPORTS_NUMA
1549 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
1550 Access). This option improves performance on systems with more
1551 than two nodes; on two node systems it is generally better to
1552 leave it disabled; on single node systems disable this option
1555 config SYS_SUPPORTS_NUMA
1561 depends on NEED_MULTIPLE_NODES
1566 bool "Multi-Processing support"
1567 depends on SYS_SUPPORTS_SMP
1570 This enables support for systems with more than one CPU. If you have
1571 a system with only one CPU, like most personal computers, say N. If
1572 you have a system with more than one CPU, say Y.
1574 If you say N here, the kernel will run on single and multiprocessor
1575 machines, but will use only one CPU of a multiprocessor machine. If
1576 you say Y here, the kernel will run on many, but not all,
1577 singleprocessor machines. On a singleprocessor machine, the kernel
1578 will run faster if you say N here.
1580 People using multiprocessor machines who say Y here should also say
1581 Y to "Enhanced Real Time Clock Support", below.
1583 See also the <file:Documentation/smp.txt> and the SMP-HOWTO
1584 available at <http://www.tldp.org/docs.html#howto>.
1586 If you don't know what to do here, say N.
1588 config SYS_SUPPORTS_SMP
1591 config NR_CPUS_DEFAULT_1
1594 config NR_CPUS_DEFAULT_2
1597 config NR_CPUS_DEFAULT_4
1600 config NR_CPUS_DEFAULT_8
1603 config NR_CPUS_DEFAULT_16
1606 config NR_CPUS_DEFAULT_32
1609 config NR_CPUS_DEFAULT_64
1613 int "Maximum number of CPUs (2-64)"
1614 range 1 64 if NR_CPUS_DEFAULT_1
1616 default "1" if NR_CPUS_DEFAULT_1
1617 default "2" if NR_CPUS_DEFAULT_2
1618 default "4" if NR_CPUS_DEFAULT_4
1619 default "8" if NR_CPUS_DEFAULT_8
1620 default "16" if NR_CPUS_DEFAULT_16
1621 default "32" if NR_CPUS_DEFAULT_32
1622 default "64" if NR_CPUS_DEFAULT_64
1624 This allows you to specify the maximum number of CPUs which this
1625 kernel will support. The maximum supported value is 32 for 32-bit
1626 kernel and 64 for 64-bit kernels; the minimum value which makes
1627 sense is 1 for Qemu (useful only for kernel debugging purposes)
1628 and 2 for all others.
1630 This is purely to save memory - each supported CPU adds
1631 approximately eight kilobytes to the kernel image. For best
1632 performance should round up your number of processors to the next
1636 # Timer Interrupt Frequency Configuration
1640 prompt "Timer frequency"
1643 Allows the configuration of the timer frequency.
1646 bool "48 HZ" if SYS_SUPPORTS_48HZ
1649 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
1652 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
1655 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
1658 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
1661 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
1664 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
1668 config SYS_SUPPORTS_48HZ
1671 config SYS_SUPPORTS_100HZ
1674 config SYS_SUPPORTS_128HZ
1677 config SYS_SUPPORTS_250HZ
1680 config SYS_SUPPORTS_256HZ
1683 config SYS_SUPPORTS_1000HZ
1686 config SYS_SUPPORTS_1024HZ
1689 config SYS_SUPPORTS_ARBIT_HZ
1691 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
1692 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
1693 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
1694 !SYS_SUPPORTS_1024HZ
1699 default 100 if HZ_100
1700 default 128 if HZ_128
1701 default 250 if HZ_250
1702 default 256 if HZ_256
1703 default 1000 if HZ_1000
1704 default 1024 if HZ_1024
1706 source "kernel/Kconfig.preempt"
1708 config MIPS_INSANE_LARGE
1709 bool "Support for large 64-bit configurations"
1710 depends on CPU_R10000 && 64BIT
1712 MIPS R10000 does support a 44 bit / 16TB address space as opposed to
1713 previous 64-bit processors which only supported 40 bit / 1TB. If you
1714 need processes of more than 1TB virtual address space, say Y here.
1715 This will result in additional memory usage, so it is not
1716 recommended for normal users.
1719 bool "Kexec system call (EXPERIMENTAL)"
1720 depends on EXPERIMENTAL
1722 kexec is a system call that implements the ability to shutdown your
1723 current kernel, and to start another kernel. It is like a reboot
1724 but it is independent of the system firmware. And like a reboot
1725 you can start any kernel with it, not just Linux.
1727 The name comes from the similiarity to the exec system call.
1729 It is an ongoing process to be certain the hardware in a machine
1730 is properly shutdown, so do not be surprised if this code does not
1731 initially work for you. It may help to enable device hotplugging
1732 support. As of this writing the exact hardware interface is
1733 strongly in flux, so no good recommendation can be made.
1736 bool "Enable seccomp to safely compute untrusted bytecode"
1740 This kernel feature is useful for number crunching applications
1741 that may need to compute untrusted bytecode during their
1742 execution. By using pipes or other transports made available to
1743 the process as file descriptors supporting the read/write
1744 syscalls, it's possible to isolate those applications in
1745 their own address space using seccomp. Once seccomp is
1746 enabled via /proc/<pid>/seccomp, it cannot be disabled
1747 and the task is only allowed to execute a few safe syscalls
1748 defined by each seccomp mode.
1750 If unsure, say Y. Only embedded should say N here.
1754 config RWSEM_GENERIC_SPINLOCK
1758 config LOCKDEP_SUPPORT
1762 config STACKTRACE_SUPPORT
1766 source "init/Kconfig"
1768 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
1776 bool "Support for PCI controller"
1777 depends on HW_HAS_PCI
1779 Find out whether you have a PCI motherboard. PCI is the name of a
1780 bus system, i.e. the way the CPU talks to the other stuff inside
1781 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
1784 The PCI-HOWTO, available from
1785 <http://www.tldp.org/docs.html#howto>, contains valuable
1786 information about which PCI hardware does work under Linux and which
1793 source "drivers/pci/Kconfig"
1796 # ISA support is now enabled via select. Too many systems still have the one
1797 # or other ISA chip on the board that users don't know about so don't expect
1798 # users to choose the right thing ...
1805 depends on HW_HAS_EISA
1807 select GENERIC_ISA_DMA
1809 The Extended Industry Standard Architecture (EISA) bus was
1810 developed as an open alternative to the IBM MicroChannel bus.
1812 The EISA bus provided some of the features of the IBM MicroChannel
1813 bus while maintaining backward compatibility with cards made for
1814 the older ISA bus. The EISA bus saw limited use between 1988 and
1815 1995 when it was made obsolete by the PCI bus.
1817 Say Y here if you are building a kernel for an EISA-based machine.
1821 source "drivers/eisa/Kconfig"
1824 bool "TURBOchannel support"
1825 depends on MACH_DECSTATION
1827 TurboChannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
1828 processors. Documentation on writing device drivers for TurboChannel
1830 <http://www.cs.arizona.edu/computer.help/policy/DIGITAL_unix/AA-PS3HD-TET1_html/TITLE.html>.
1833 # bool "Access.Bus support"
1843 source "drivers/pcmcia/Kconfig"
1845 source "drivers/pci/hotplug/Kconfig"
1849 menu "Executable file formats"
1851 source "fs/Kconfig.binfmt"
1857 bool "Include IRIX binary compatibility"
1858 depends on CPU_BIG_ENDIAN && 32BIT && BROKEN
1860 config MIPS32_COMPAT
1861 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
1864 Select this option if you want Linux/MIPS 32-bit binary
1865 compatibility. Since all software available for Linux/MIPS is
1866 currently 32-bit you should say Y here.
1870 depends on MIPS32_COMPAT
1873 config SYSVIPC_COMPAT
1875 depends on COMPAT && SYSVIPC
1879 bool "Kernel support for o32 binaries"
1880 depends on MIPS32_COMPAT
1882 Select this option if you want to run o32 binaries. These are pure
1883 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
1884 existing binaries are in this format.
1889 bool "Kernel support for n32 binaries"
1890 depends on MIPS32_COMPAT
1892 Select this option if you want to run n32 binaries. These are
1893 64-bit binaries using 32-bit quantities for addressing and certain
1894 data that would normally be 64-bit. They are used in special
1901 default y if MIPS32_O32 || MIPS32_N32
1905 menu "Power management options"
1907 source "kernel/power/Kconfig"
1911 source "net/Kconfig"
1913 source "drivers/Kconfig"
1917 source "arch/mips/oprofile/Kconfig"
1919 source "arch/mips/Kconfig.debug"
1921 source "security/Kconfig"
1923 source "crypto/Kconfig"
1925 source "lib/Kconfig"