4 select HAVE_GENERIC_DMA_COHERENT
8 select HAVE_FUNCTION_TRACER
9 select HAVE_FUNCTION_TRACE_MCOUNT_TEST
10 select HAVE_DYNAMIC_FTRACE
11 select HAVE_FTRACE_MCOUNT_RECORD
12 select HAVE_FUNCTION_GRAPH_TRACER
13 # Horrible source of confusion. Die, die, die ...
15 select RTC_LIB if !MACH_LOONGSON
17 mainmenu "Linux/MIPS Kernel Configuration"
19 menu "Machine selection"
29 bool "Alchemy processor based machines"
30 select SYS_SUPPORTS_ZBOOT
33 bool "Texas Instruments AR7"
35 select DMA_NONCOHERENT
41 select SYS_HAS_CPU_MIPS32_R1
42 select SYS_HAS_EARLY_PRINTK
43 select SYS_SUPPORTS_32BIT_KERNEL
44 select SYS_SUPPORTS_LITTLE_ENDIAN
45 select SYS_SUPPORTS_ZBOOT_UART16550
50 Support for the Texas Instruments AR7 System-on-a-Chip
51 family: TNETD7100, 7200 and 7300.
54 bool "Basler eXcite smart camera"
63 select SYS_HAS_CPU_RM9000
64 select SYS_SUPPORTS_32BIT_KERNEL
65 select SYS_SUPPORTS_BIG_ENDIAN
67 The eXcite is a smart camera platform manufactured by
68 Basler Vision Technologies AG.
71 bool "BCM47XX based boards"
74 select DMA_NONCOHERENT
77 select SYS_HAS_CPU_MIPS32_R1
78 select SYS_SUPPORTS_32BIT_KERNEL
79 select SYS_SUPPORTS_LITTLE_ENDIAN
81 select SSB_DRIVER_MIPS
82 select SSB_DRIVER_EXTIF
84 select SSB_PCICORE_HOSTMODE if PCI
86 select SYS_HAS_EARLY_PRINTK
89 Support for BCM47XX based boards
92 bool "Broadcom BCM63XX based boards"
95 select DMA_NONCOHERENT
97 select SYS_HAS_CPU_MIPS32_R1
98 select SYS_SUPPORTS_32BIT_KERNEL
99 select SYS_SUPPORTS_BIG_ENDIAN
100 select SYS_HAS_EARLY_PRINTK
102 select ARCH_REQUIRE_GPIOLIB
104 Support for BCM63XX based boards
111 select DMA_NONCOHERENT
117 select PCI_GT64XXX_PCI0
119 select SYS_HAS_CPU_NEVADA
120 select SYS_HAS_EARLY_PRINTK
121 select SYS_SUPPORTS_32BIT_KERNEL
122 select SYS_SUPPORTS_64BIT_KERNEL
123 select SYS_SUPPORTS_LITTLE_ENDIAN
125 config MACH_DECSTATION
132 select CPU_DADDI_WORKAROUNDS if 64BIT
133 select CPU_R4000_WORKAROUNDS if 64BIT
134 select CPU_R4400_WORKAROUNDS if 64BIT
135 select DMA_NONCOHERENT
138 select SYS_HAS_CPU_R3000
139 select SYS_HAS_CPU_R4X00
140 select SYS_SUPPORTS_32BIT_KERNEL
141 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
142 select SYS_SUPPORTS_LITTLE_ENDIAN
143 select SYS_SUPPORTS_128HZ
144 select SYS_SUPPORTS_256HZ
145 select SYS_SUPPORTS_1024HZ
147 This enables support for DEC's MIPS based workstations. For details
148 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
149 DECstation porting pages on <http://decstation.unix-ag.org/>.
151 If you have one of the following DECstation Models you definitely
152 want to choose R4xx0 for the CPU Type:
159 otherwise choose R3000.
162 bool "Jazz family of machines"
165 select ARCH_MAY_HAVE_PC_FDC
168 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
169 select GENERIC_ISA_DMA
174 select SYS_HAS_CPU_R4X00
175 select SYS_SUPPORTS_32BIT_KERNEL
176 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
177 select SYS_SUPPORTS_100HZ
179 This a family of machines based on the MIPS R4030 chipset which was
180 used by several vendors to build RISC/os and Windows NT workstations.
181 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
182 Olivetti M700-10 workstations.
185 bool "LASAT Networks platforms"
188 select DMA_NONCOHERENT
189 select SYS_HAS_EARLY_PRINTK
192 select PCI_GT64XXX_PCI0
194 select R5000_CPU_SCACHE
195 select SYS_HAS_CPU_R5000
196 select SYS_SUPPORTS_32BIT_KERNEL
197 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
198 select SYS_SUPPORTS_LITTLE_ENDIAN
201 bool "Loongson family of machines"
202 select SYS_SUPPORTS_ZBOOT_UART16550
204 This enables the support of Loongson family of machines.
206 Loongson is a family of general-purpose MIPS-compatible CPUs.
207 developed at Institute of Computing Technology (ICT),
208 Chinese Academy of Sciences (CAS) in the People's Republic
209 of China. The chief architect is Professor Weiwu Hu.
212 bool "MIPS Malta board"
213 select ARCH_MAY_HAVE_PC_FDC
218 select DMA_NONCOHERENT
219 select GENERIC_ISA_DMA
225 select MIPS_BOARDS_GEN
227 select MIPS_CPU_SCACHE
228 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_HAS_EARLY_PRINTK
237 select SYS_SUPPORTS_32BIT_KERNEL
238 select SYS_SUPPORTS_64BIT_KERNEL
239 select SYS_SUPPORTS_BIG_ENDIAN
240 select SYS_SUPPORTS_LITTLE_ENDIAN
241 select SYS_SUPPORTS_MIPS_CMP
242 select SYS_SUPPORTS_MULTITHREADING
243 select SYS_SUPPORTS_SMARTMIPS
244 select SYS_SUPPORTS_ZBOOT
246 This enables support for the MIPS Technologies Malta evaluation
250 bool 'MIPS simulator (MIPSsim)'
253 select DMA_NONCOHERENT
254 select SYS_HAS_EARLY_PRINTK
257 select SYS_HAS_CPU_MIPS32_R1
258 select SYS_HAS_CPU_MIPS32_R2
259 select SYS_HAS_EARLY_PRINTK
260 select SYS_SUPPORTS_32BIT_KERNEL
261 select SYS_SUPPORTS_BIG_ENDIAN
262 select SYS_SUPPORTS_MULTITHREADING
263 select SYS_SUPPORTS_LITTLE_ENDIAN
265 This option enables support for MIPS Technologies MIPSsim software
269 bool "NEC EMMA2RH Mark-eins board"
273 This enables support for the NEC Electronics Mark-eins boards.
276 bool "NEC VR4100 series based machines"
279 select SYS_HAS_CPU_VR41XX
280 select ARCH_REQUIRE_GPIOLIB
283 bool "NXP STB220 board"
286 Support for NXP Semiconductors STB220 Development Board.
293 Support for NXP Semiconductors STB225 Development Board.
296 bool "NXP PNX8550 based JBS board"
298 select SYS_SUPPORTS_LITTLE_ENDIAN
300 config PNX8550_STB810
301 bool "NXP PNX8550 based STB810 board"
303 select SYS_SUPPORTS_LITTLE_ENDIAN
306 bool "PMC-Sierra MSP chipsets"
307 depends on EXPERIMENTAL
308 select DMA_NONCOHERENT
310 select NO_EXCEPT_FILL
312 select SYS_HAS_CPU_MIPS32_R1
313 select SYS_HAS_CPU_MIPS32_R2
314 select SYS_SUPPORTS_32BIT_KERNEL
315 select SYS_SUPPORTS_BIG_ENDIAN
318 select SERIAL_8250_CONSOLE
320 This adds support for the PMC-Sierra family of Multi-Service
321 Processor System-On-A-Chips. These parts include a number
322 of integrated peripherals, interfaces and DSPs in addition to
323 a variety of MIPS cores.
326 bool "PMC-Sierra Yosemite eval board"
335 select SYS_HAS_CPU_RM9000
336 select SYS_HAS_EARLY_PRINTK
337 select SYS_SUPPORTS_32BIT_KERNEL
338 select SYS_SUPPORTS_64BIT_KERNEL
339 select SYS_SUPPORTS_BIG_ENDIAN
340 select SYS_SUPPORTS_HIGHMEM
341 select SYS_SUPPORTS_SMP
343 Yosemite is an evaluation board for the RM9000x2 processor
344 manufactured by PMC-Sierra.
350 select CPU_MIPSR2_IRQ_VI
351 select CPU_MIPSR2_IRQ_EI
353 select DMA_NONCOHERENT
355 select SYS_HAS_EARLY_PRINTK
356 select SYS_HAS_CPU_MIPS32_R2
357 select SYS_SUPPORTS_32BIT_KERNEL
358 select SYS_SUPPORTS_BIG_ENDIAN
359 select SYS_SUPPORTS_HIGHMEM
360 select USB_OHCI_LITTLE_ENDIAN
362 This enables support for the Cisco PowerTV Platform.
365 bool "SGI IP22 (Indy/Indigo2)"
371 select DEFAULT_SGI_PARTITION
372 select DMA_NONCOHERENT
376 select IP22_CPU_SCACHE
378 select GENERIC_ISA_DMA_SUPPORT_BROKEN
380 select SGI_HAS_INDYDOG
386 select SYS_HAS_CPU_R4X00
387 select SYS_HAS_CPU_R5000
389 # Disable EARLY_PRINTK for now since it leads to overwritten prom
390 # memory during early boot on some machines.
392 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
393 # for a more details discussion
395 # select SYS_HAS_EARLY_PRINTK
396 select SYS_SUPPORTS_32BIT_KERNEL
397 select SYS_SUPPORTS_64BIT_KERNEL
398 select SYS_SUPPORTS_BIG_ENDIAN
400 This are the SGI Indy, Challenge S and Indigo2, as well as certain
401 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
402 that runs on these, say Y here.
405 bool "SGI IP27 (Origin200/2000)"
409 select DEFAULT_SGI_PARTITION
411 select SYS_HAS_EARLY_PRINTK
413 select NR_CPUS_DEFAULT_64
414 select SYS_HAS_CPU_R10000
415 select SYS_SUPPORTS_64BIT_KERNEL
416 select SYS_SUPPORTS_BIG_ENDIAN
417 select SYS_SUPPORTS_NUMA
418 select SYS_SUPPORTS_SMP
420 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
421 workstations. To compile a Linux kernel that runs on these, say Y
425 bool "SGI IP28 (Indigo2 R10k) (EXPERIMENTAL)"
426 depends on EXPERIMENTAL
432 select DEFAULT_SGI_PARTITION
433 select DMA_NONCOHERENT
434 select GENERIC_ISA_DMA_SUPPORT_BROKEN
440 select SGI_HAS_INDYDOG
446 select SYS_HAS_CPU_R10000
448 # Disable EARLY_PRINTK for now since it leads to overwritten prom
449 # memory during early boot on some machines.
451 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
452 # for a more details discussion
454 # select SYS_HAS_EARLY_PRINTK
455 select SYS_SUPPORTS_64BIT_KERNEL
456 select SYS_SUPPORTS_BIG_ENDIAN
458 This is the SGI Indigo2 with R10000 processor. To compile a Linux
459 kernel that runs on these, say Y here.
468 select DMA_NONCOHERENT
471 select R5000_CPU_SCACHE
472 select RM7000_CPU_SCACHE
473 select SYS_HAS_CPU_R5000
474 select SYS_HAS_CPU_R10000 if BROKEN
475 select SYS_HAS_CPU_RM7000
476 select SYS_HAS_CPU_NEVADA
477 select SYS_SUPPORTS_64BIT_KERNEL
478 select SYS_SUPPORTS_BIG_ENDIAN
480 If you want this kernel to run on SGI O2 workstation, say Y here.
483 bool "Sibyte BCM91120C-CRhine"
484 depends on EXPERIMENTAL
487 select SIBYTE_BCM1120
489 select SYS_HAS_CPU_SB1
490 select SYS_SUPPORTS_BIG_ENDIAN
491 select SYS_SUPPORTS_LITTLE_ENDIAN
494 bool "Sibyte BCM91120x-Carmel"
495 depends on EXPERIMENTAL
498 select SIBYTE_BCM1120
500 select SYS_HAS_CPU_SB1
501 select SYS_SUPPORTS_BIG_ENDIAN
502 select SYS_SUPPORTS_LITTLE_ENDIAN
505 bool "Sibyte BCM91125C-CRhone"
506 depends on EXPERIMENTAL
509 select SIBYTE_BCM1125
511 select SYS_HAS_CPU_SB1
512 select SYS_SUPPORTS_BIG_ENDIAN
513 select SYS_SUPPORTS_HIGHMEM
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 BCM91250A-SWARM"
531 select NR_CPUS_DEFAULT_2
534 select SYS_HAS_CPU_SB1
535 select SYS_SUPPORTS_BIG_ENDIAN
536 select SYS_SUPPORTS_HIGHMEM
537 select SYS_SUPPORTS_LITTLE_ENDIAN
538 select ZONE_DMA32 if 64BIT
540 config SIBYTE_LITTLESUR
541 bool "Sibyte BCM91250C2-LittleSur"
542 depends on EXPERIMENTAL
545 select NR_CPUS_DEFAULT_2
548 select SYS_HAS_CPU_SB1
549 select SYS_SUPPORTS_BIG_ENDIAN
550 select SYS_SUPPORTS_HIGHMEM
551 select SYS_SUPPORTS_LITTLE_ENDIAN
553 config SIBYTE_SENTOSA
554 bool "Sibyte BCM91250E-Sentosa"
555 depends on EXPERIMENTAL
558 select NR_CPUS_DEFAULT_2
561 select SYS_HAS_CPU_SB1
562 select SYS_SUPPORTS_BIG_ENDIAN
563 select SYS_SUPPORTS_LITTLE_ENDIAN
566 bool "Sibyte BCM91480B-BigSur"
569 select NR_CPUS_DEFAULT_4
570 select SIBYTE_BCM1x80
572 select SYS_HAS_CPU_SB1
573 select SYS_SUPPORTS_BIG_ENDIAN
574 select SYS_SUPPORTS_HIGHMEM
575 select SYS_SUPPORTS_LITTLE_ENDIAN
576 select ZONE_DMA32 if 64BIT
579 bool "SNI RM200/300/400"
580 select ARC if CPU_LITTLE_ENDIAN
581 select ARC32 if CPU_LITTLE_ENDIAN
582 select SNIPROM if CPU_BIG_ENDIAN
583 select ARCH_MAY_HAVE_PC_FDC
587 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
588 select DMA_NONCOHERENT
589 select GENERIC_ISA_DMA
596 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
597 select SYS_HAS_CPU_R4X00
598 select SYS_HAS_CPU_R5000
599 select SYS_HAS_CPU_R10000
600 select R5000_CPU_SCACHE
601 select SYS_HAS_EARLY_PRINTK
602 select SYS_SUPPORTS_32BIT_KERNEL
603 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
604 select SYS_SUPPORTS_BIG_ENDIAN
605 select SYS_SUPPORTS_HIGHMEM
606 select SYS_SUPPORTS_LITTLE_ENDIAN
608 The SNI RM200/300/400 are MIPS-based machines manufactured by
609 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
610 Technology and now in turn merged with Fujitsu. Say Y here to
611 support this machine type.
614 bool "Toshiba TX39 series based machines"
617 bool "Toshiba TX49 series based machines"
619 config MIKROTIK_RB532
620 bool "Mikrotik RB532 boards"
623 select DMA_NONCOHERENT
626 select SYS_HAS_CPU_MIPS32_R1
627 select SYS_SUPPORTS_32BIT_KERNEL
628 select SYS_SUPPORTS_LITTLE_ENDIAN
631 select ARCH_REQUIRE_GPIOLIB
633 Support the Mikrotik(tm) RouterBoard 532 series,
634 based on the IDT RC32434 SoC.
637 bool "Wind River PPMC board"
642 select DMA_NONCOHERENT
644 select PCI_GT64XXX_PCI0
646 select SYS_HAS_CPU_MIPS32_R1
647 select SYS_HAS_CPU_MIPS32_R2
648 select SYS_HAS_CPU_MIPS64_R1
649 select SYS_HAS_CPU_NEVADA
650 select SYS_HAS_CPU_RM7000
651 select SYS_SUPPORTS_32BIT_KERNEL
652 select SYS_SUPPORTS_64BIT_KERNEL
653 select SYS_SUPPORTS_BIG_ENDIAN
654 select SYS_SUPPORTS_LITTLE_ENDIAN
656 This enables support for the Wind River MIPS32 4KC PPMC evaluation
657 board, which is based on GT64120 bridge chip.
659 config CAVIUM_OCTEON_SIMULATOR
660 bool "Cavium Networks Octeon Simulator"
662 select 64BIT_PHYS_ADDR
664 select SYS_SUPPORTS_64BIT_KERNEL
665 select SYS_SUPPORTS_BIG_ENDIAN
666 select SYS_SUPPORTS_HIGHMEM
667 select SYS_SUPPORTS_HOTPLUG_CPU
668 select SYS_HAS_CPU_CAVIUM_OCTEON
670 The Octeon simulator is software performance model of the Cavium
671 Octeon Processor. It supports simulating Octeon processors on x86
674 config CAVIUM_OCTEON_REFERENCE_BOARD
675 bool "Cavium Networks Octeon reference board"
677 select 64BIT_PHYS_ADDR
679 select SYS_SUPPORTS_64BIT_KERNEL
680 select SYS_SUPPORTS_BIG_ENDIAN
681 select SYS_SUPPORTS_HIGHMEM
682 select SYS_SUPPORTS_HOTPLUG_CPU
683 select SYS_HAS_EARLY_PRINTK
684 select SYS_HAS_CPU_CAVIUM_OCTEON
687 select ARCH_SUPPORTS_MSI
689 This option supports all of the Octeon reference boards from Cavium
690 Networks. It builds a kernel that dynamically determines the Octeon
691 CPU type and supports all known board reference implementations.
692 Some of the supported boards are:
699 Say Y here for most Octeon reference boards.
703 source "arch/mips/alchemy/Kconfig"
704 source "arch/mips/basler/excite/Kconfig"
705 source "arch/mips/bcm63xx/Kconfig"
706 source "arch/mips/jazz/Kconfig"
707 source "arch/mips/lasat/Kconfig"
708 source "arch/mips/pmc-sierra/Kconfig"
709 source "arch/mips/powertv/Kconfig"
710 source "arch/mips/sgi-ip27/Kconfig"
711 source "arch/mips/sibyte/Kconfig"
712 source "arch/mips/txx9/Kconfig"
713 source "arch/mips/vr41xx/Kconfig"
714 source "arch/mips/cavium-octeon/Kconfig"
715 source "arch/mips/loongson/Kconfig"
719 config RWSEM_GENERIC_SPINLOCK
723 config RWSEM_XCHGADD_ALGORITHM
726 config ARCH_HAS_ILOG2_U32
730 config ARCH_HAS_ILOG2_U64
734 config ARCH_SUPPORTS_OPROFILE
736 default y if !MIPS_MT_SMTC
738 config GENERIC_FIND_NEXT_BIT
742 config GENERIC_HWEIGHT
746 config GENERIC_CALIBRATE_DELAY
750 config GENERIC_CLOCKEVENTS
758 config GENERIC_CMOS_UPDATE
762 config SCHED_OMIT_FRAME_POINTER
766 config GENERIC_HARDIRQS_NO__DO_IRQ
770 # Select some configuration options automatically based on user selections.
775 config ARCH_MAY_HAVE_PC_FDC
824 select ARCH_REQUIRE_GPIOLIB
833 config DMA_NONCOHERENT
835 select DMA_NEED_PCI_MAP_STATE
837 config DMA_NEED_PCI_MAP_STATE
840 config SYS_HAS_EARLY_PRINTK
844 bool "Support for hot-pluggable CPUs"
845 depends on SMP && HOTPLUG && SYS_SUPPORTS_HOTPLUG_CPU
847 Say Y here to allow turning CPUs off and on. CPUs can be
848 controlled through /sys/devices/system/cpu.
849 (Note: power management support will enable this option
850 automatically on SMP systems. )
851 Say N if you want to disable CPU hotplug.
853 config SYS_SUPPORTS_HOTPLUG_CPU
868 config MIPS_DISABLE_OBSOLETE_IDE
877 config GENERIC_ISA_DMA
879 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
881 config GENERIC_ISA_DMA_SUPPORT_BROKEN
883 select GENERIC_ISA_DMA
889 # Endianess selection. Sufficiently obscure so many users don't know what to
890 # answer,so we try hard to limit the available choices. Also the use of a
891 # choice statement should be more obvious to the user.
894 prompt "Endianess selection"
896 Some MIPS machines can be configured for either little or big endian
897 byte order. These modes require different kernels and a different
898 Linux distribution. In general there is one preferred byteorder for a
899 particular system but some systems are just as commonly used in the
900 one or the other endianness.
902 config CPU_BIG_ENDIAN
904 depends on SYS_SUPPORTS_BIG_ENDIAN
906 config CPU_LITTLE_ENDIAN
908 depends on SYS_SUPPORTS_LITTLE_ENDIAN
913 config SYS_SUPPORTS_APM_EMULATION
916 config SYS_SUPPORTS_BIG_ENDIAN
919 config SYS_SUPPORTS_LITTLE_ENDIAN
922 config SYS_SUPPORTS_HUGETLBFS
924 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
951 config IRQ_CPU_OCTEON
954 config MIPS_BOARDS_GEN
957 config PCI_GT64XXX_PCI0
960 config NO_EXCEPT_FILL
971 select DMA_NONCOHERENT
974 select SYS_HAS_CPU_R5500
975 select SYS_SUPPORTS_32BIT_KERNEL
976 select SYS_SUPPORTS_64BIT_KERNEL
977 select SYS_SUPPORTS_BIG_ENDIAN
984 select DMA_NONCOHERENT
985 select SYS_HAS_CPU_MIPS32_R2
986 select SYS_SUPPORTS_32BIT_KERNEL
987 select SYS_SUPPORTS_LITTLE_ENDIAN
988 select SYS_SUPPORTS_BIG_ENDIAN
990 select CPU_MIPSR2_IRQ_VI
1002 select DMA_NONCOHERENT
1004 select SYS_HAS_CPU_MIPS32_R1
1005 select SYS_HAS_EARLY_PRINTK
1006 select SYS_SUPPORTS_32BIT_KERNEL
1009 config SWAP_IO_SPACE
1012 config SERIAL_RM9000
1015 config SGI_HAS_INDYDOG
1027 config SGI_HAS_ZILOG
1030 config SGI_HAS_I8042
1033 config DEFAULT_SGI_PARTITION
1045 config MIPS_L1_CACHE_SHIFT
1047 default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL
1048 default "6" if MIPS_CPU_SCACHE
1049 default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON
1052 config HAVE_STD_PC_SERIAL_PORT
1056 bool "ARC console support"
1057 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1061 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1066 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1075 menu "CPU selection"
1081 config CPU_LOONGSON2E
1083 depends on SYS_HAS_CPU_LOONGSON2E
1084 select CPU_LOONGSON2
1086 The Loongson 2E processor implements the MIPS III instruction set
1087 with many extensions.
1089 It has an internal FPGA northbridge, which is compatiable to
1092 config CPU_LOONGSON2F
1094 depends on SYS_HAS_CPU_LOONGSON2F
1095 select CPU_LOONGSON2
1097 The Loongson 2F processor implements the MIPS III instruction set
1098 with many extensions.
1100 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1101 have a similar programming interface with FPGA northbridge used in
1104 config CPU_MIPS32_R1
1105 bool "MIPS32 Release 1"
1106 depends on SYS_HAS_CPU_MIPS32_R1
1107 select CPU_HAS_PREFETCH
1108 select CPU_SUPPORTS_32BIT_KERNEL
1109 select CPU_SUPPORTS_HIGHMEM
1111 Choose this option to build a kernel for release 1 or later of the
1112 MIPS32 architecture. Most modern embedded systems with a 32-bit
1113 MIPS processor are based on a MIPS32 processor. If you know the
1114 specific type of processor in your system, choose those that one
1115 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1116 Release 2 of the MIPS32 architecture is available since several
1117 years so chances are you even have a MIPS32 Release 2 processor
1118 in which case you should choose CPU_MIPS32_R2 instead for better
1121 config CPU_MIPS32_R2
1122 bool "MIPS32 Release 2"
1123 depends on SYS_HAS_CPU_MIPS32_R2
1124 select CPU_HAS_PREFETCH
1125 select CPU_SUPPORTS_32BIT_KERNEL
1126 select CPU_SUPPORTS_HIGHMEM
1128 Choose this option to build a kernel for release 2 or later of the
1129 MIPS32 architecture. Most modern embedded systems with a 32-bit
1130 MIPS processor are based on a MIPS32 processor. If you know the
1131 specific type of processor in your system, choose those that one
1132 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1134 config CPU_MIPS64_R1
1135 bool "MIPS64 Release 1"
1136 depends on SYS_HAS_CPU_MIPS64_R1
1137 select CPU_HAS_PREFETCH
1138 select CPU_SUPPORTS_32BIT_KERNEL
1139 select CPU_SUPPORTS_64BIT_KERNEL
1140 select CPU_SUPPORTS_HIGHMEM
1141 select CPU_SUPPORTS_HUGEPAGES
1143 Choose this option to build a kernel for release 1 or later of the
1144 MIPS64 architecture. Many modern embedded systems with a 64-bit
1145 MIPS processor are based on a MIPS64 processor. If you know the
1146 specific type of processor in your system, choose those that one
1147 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1148 Release 2 of the MIPS64 architecture is available since several
1149 years so chances are you even have a MIPS64 Release 2 processor
1150 in which case you should choose CPU_MIPS64_R2 instead for better
1153 config CPU_MIPS64_R2
1154 bool "MIPS64 Release 2"
1155 depends on SYS_HAS_CPU_MIPS64_R2
1156 select CPU_HAS_PREFETCH
1157 select CPU_SUPPORTS_32BIT_KERNEL
1158 select CPU_SUPPORTS_64BIT_KERNEL
1159 select CPU_SUPPORTS_HIGHMEM
1160 select CPU_SUPPORTS_HUGEPAGES
1162 Choose this option to build a kernel for release 2 or later of the
1163 MIPS64 architecture. Many modern embedded systems with a 64-bit
1164 MIPS processor are based on a MIPS64 processor. If you know the
1165 specific type of processor in your system, choose those that one
1166 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1170 depends on SYS_HAS_CPU_R3000
1172 select CPU_SUPPORTS_32BIT_KERNEL
1173 select CPU_SUPPORTS_HIGHMEM
1175 Please make sure to pick the right CPU type. Linux/MIPS is not
1176 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1177 *not* work on R4000 machines and vice versa. However, since most
1178 of the supported machines have an R4000 (or similar) CPU, R4x00
1179 might be a safe bet. If the resulting kernel does not work,
1180 try to recompile with R3000.
1184 depends on SYS_HAS_CPU_TX39XX
1185 select CPU_SUPPORTS_32BIT_KERNEL
1189 depends on SYS_HAS_CPU_VR41XX
1190 select CPU_SUPPORTS_32BIT_KERNEL
1191 select CPU_SUPPORTS_64BIT_KERNEL
1193 The options selects support for the NEC VR4100 series of processors.
1194 Only choose this option if you have one of these processors as a
1195 kernel built with this option will not run on any other type of
1196 processor or vice versa.
1200 depends on SYS_HAS_CPU_R4300
1201 select CPU_SUPPORTS_32BIT_KERNEL
1202 select CPU_SUPPORTS_64BIT_KERNEL
1204 MIPS Technologies R4300-series processors.
1208 depends on SYS_HAS_CPU_R4X00
1209 select CPU_SUPPORTS_32BIT_KERNEL
1210 select CPU_SUPPORTS_64BIT_KERNEL
1212 MIPS Technologies R4000-series processors other than 4300, including
1213 the R4000, R4400, R4600, and 4700.
1217 depends on SYS_HAS_CPU_TX49XX
1218 select CPU_HAS_PREFETCH
1219 select CPU_SUPPORTS_32BIT_KERNEL
1220 select CPU_SUPPORTS_64BIT_KERNEL
1224 depends on SYS_HAS_CPU_R5000
1225 select CPU_SUPPORTS_32BIT_KERNEL
1226 select CPU_SUPPORTS_64BIT_KERNEL
1228 MIPS Technologies R5000-series processors other than the Nevada.
1232 depends on SYS_HAS_CPU_R5432
1233 select CPU_SUPPORTS_32BIT_KERNEL
1234 select CPU_SUPPORTS_64BIT_KERNEL
1238 depends on SYS_HAS_CPU_R5500
1239 select CPU_SUPPORTS_32BIT_KERNEL
1240 select CPU_SUPPORTS_64BIT_KERNEL
1241 select CPU_SUPPORTS_HUGEPAGES
1243 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1248 depends on EXPERIMENTAL
1249 depends on SYS_HAS_CPU_R6000
1250 select CPU_SUPPORTS_32BIT_KERNEL
1252 MIPS Technologies R6000 and R6000A series processors. Note these
1253 processors are extremely rare and the support for them is incomplete.
1257 depends on SYS_HAS_CPU_NEVADA
1258 select CPU_SUPPORTS_32BIT_KERNEL
1259 select CPU_SUPPORTS_64BIT_KERNEL
1261 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1265 depends on EXPERIMENTAL
1266 depends on SYS_HAS_CPU_R8000
1267 select CPU_HAS_PREFETCH
1268 select CPU_SUPPORTS_64BIT_KERNEL
1270 MIPS Technologies R8000 processors. Note these processors are
1271 uncommon and the support for them is incomplete.
1275 depends on SYS_HAS_CPU_R10000
1276 select CPU_HAS_PREFETCH
1277 select CPU_SUPPORTS_32BIT_KERNEL
1278 select CPU_SUPPORTS_64BIT_KERNEL
1279 select CPU_SUPPORTS_HIGHMEM
1281 MIPS Technologies R10000-series processors.
1285 depends on SYS_HAS_CPU_RM7000
1286 select CPU_HAS_PREFETCH
1287 select CPU_SUPPORTS_32BIT_KERNEL
1288 select CPU_SUPPORTS_64BIT_KERNEL
1289 select CPU_SUPPORTS_HIGHMEM
1293 depends on SYS_HAS_CPU_RM9000
1294 select CPU_HAS_PREFETCH
1295 select CPU_SUPPORTS_32BIT_KERNEL
1296 select CPU_SUPPORTS_64BIT_KERNEL
1297 select CPU_SUPPORTS_HIGHMEM
1298 select WEAK_ORDERING
1302 depends on SYS_HAS_CPU_SB1
1303 select CPU_SUPPORTS_32BIT_KERNEL
1304 select CPU_SUPPORTS_64BIT_KERNEL
1305 select CPU_SUPPORTS_HIGHMEM
1306 select WEAK_ORDERING
1308 config CPU_CAVIUM_OCTEON
1309 bool "Cavium Octeon processor"
1310 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1312 select IRQ_CPU_OCTEON
1313 select CPU_HAS_PREFETCH
1314 select CPU_SUPPORTS_64BIT_KERNEL
1315 select SYS_SUPPORTS_SMP
1316 select NR_CPUS_DEFAULT_16
1317 select WEAK_ORDERING
1318 select WEAK_REORDERING_BEYOND_LLSC
1319 select CPU_SUPPORTS_HIGHMEM
1320 select CPU_SUPPORTS_HUGEPAGES
1322 The Cavium Octeon processor is a highly integrated chip containing
1323 many ethernet hardware widgets for networking tasks. The processor
1324 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1325 Full details can be found at http://www.caviumnetworks.com.
1329 config SYS_SUPPORTS_ZBOOT
1331 select HAVE_KERNEL_GZIP
1332 select HAVE_KERNEL_BZIP2
1333 select HAVE_KERNEL_LZMA
1335 config SYS_SUPPORTS_ZBOOT_UART16550
1337 select SYS_SUPPORTS_ZBOOT
1339 config CPU_LOONGSON2
1341 select CPU_SUPPORTS_32BIT_KERNEL
1342 select CPU_SUPPORTS_64BIT_KERNEL
1343 select CPU_SUPPORTS_HIGHMEM
1345 config SYS_HAS_CPU_LOONGSON2E
1348 config SYS_HAS_CPU_LOONGSON2F
1350 select CPU_SUPPORTS_CPUFREQ
1351 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1352 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1354 config SYS_HAS_CPU_MIPS32_R1
1357 config SYS_HAS_CPU_MIPS32_R2
1360 config SYS_HAS_CPU_MIPS64_R1
1363 config SYS_HAS_CPU_MIPS64_R2
1366 config SYS_HAS_CPU_R3000
1369 config SYS_HAS_CPU_TX39XX
1372 config SYS_HAS_CPU_VR41XX
1375 config SYS_HAS_CPU_R4300
1378 config SYS_HAS_CPU_R4X00
1381 config SYS_HAS_CPU_TX49XX
1384 config SYS_HAS_CPU_R5000
1387 config SYS_HAS_CPU_R5432
1390 config SYS_HAS_CPU_R5500
1393 config SYS_HAS_CPU_R6000
1396 config SYS_HAS_CPU_NEVADA
1399 config SYS_HAS_CPU_R8000
1402 config SYS_HAS_CPU_R10000
1405 config SYS_HAS_CPU_RM7000
1408 config SYS_HAS_CPU_RM9000
1411 config SYS_HAS_CPU_SB1
1414 config SYS_HAS_CPU_CAVIUM_OCTEON
1418 # CPU may reorder R->R, R->W, W->R, W->W
1419 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1421 config WEAK_ORDERING
1425 # CPU may reorder reads and writes beyond LL/SC
1426 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1428 config WEAK_REORDERING_BEYOND_LLSC
1433 # These two indicate any level of the MIPS32 and MIPS64 architecture
1437 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1441 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1444 # These two indicate the revision of the architecture, either Release 1 or Release 2
1448 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1452 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1454 config SYS_SUPPORTS_32BIT_KERNEL
1456 config SYS_SUPPORTS_64BIT_KERNEL
1458 config CPU_SUPPORTS_32BIT_KERNEL
1460 config CPU_SUPPORTS_64BIT_KERNEL
1462 config CPU_SUPPORTS_CPUFREQ
1464 config CPU_SUPPORTS_ADDRWINCFG
1466 config CPU_SUPPORTS_HUGEPAGES
1468 config CPU_SUPPORTS_UNCACHED_ACCELERATED
1470 config MIPS_PGD_C0_CONTEXT
1472 default y if 64BIT && CPU_MIPSR2
1475 # Set to y for ptrace access to watch registers.
1477 config HARDWARE_WATCHPOINTS
1479 default y if CPU_MIPSR1 || CPU_MIPSR2
1485 prompt "Kernel code model"
1487 You should only select this option if you have a workload that
1488 actually benefits from 64-bit processing or if your machine has
1489 large memory. You will only be presented a single option in this
1490 menu if your system does not support both 32-bit and 64-bit kernels.
1493 bool "32-bit kernel"
1494 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1497 Select this option if you want to build a 32-bit kernel.
1499 bool "64-bit kernel"
1500 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1501 select HAVE_SYSCALL_WRAPPERS
1503 Select this option if you want to build a 64-bit kernel.
1508 prompt "Kernel page size"
1509 default PAGE_SIZE_4KB
1511 config PAGE_SIZE_4KB
1513 depends on !CPU_LOONGSON2
1515 This option select the standard 4kB Linux page size. On some
1516 R3000-family processors this is the only available page size. Using
1517 4kB page size will minimize memory consumption and is therefore
1518 recommended for low memory systems.
1520 config PAGE_SIZE_8KB
1522 depends on (EXPERIMENTAL && CPU_R8000) || CPU_CAVIUM_OCTEON
1524 Using 8kB page size will result in higher performance kernel at
1525 the price of higher memory consumption. This option is available
1526 only on R8000 and cnMIPS processors. Note that you will need a
1527 suitable Linux distribution to support this.
1529 config PAGE_SIZE_16KB
1531 depends on !CPU_R3000 && !CPU_TX39XX
1533 Using 16kB page size will result in higher performance kernel at
1534 the price of higher memory consumption. This option is available on
1535 all non-R3000 family processors. Note that you will need a suitable
1536 Linux distribution to support this.
1538 config PAGE_SIZE_32KB
1540 depends on CPU_CAVIUM_OCTEON
1542 Using 32kB page size will result in higher performance kernel at
1543 the price of higher memory consumption. This option is available
1544 only on cnMIPS cores. Note that you will need a suitable Linux
1545 distribution to support this.
1547 config PAGE_SIZE_64KB
1549 depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
1551 Using 64kB page size will result in higher performance kernel at
1552 the price of higher memory consumption. This option is available on
1553 all non-R3000 family processor. Not that at the time of this
1554 writing this option is still high experimental.
1561 config IP22_CPU_SCACHE
1566 # Support for a MIPS32 / MIPS64 style S-caches
1568 config MIPS_CPU_SCACHE
1572 config R5000_CPU_SCACHE
1576 config RM7000_CPU_SCACHE
1580 config SIBYTE_DMA_PAGEOPS
1581 bool "Use DMA to clear/copy pages"
1584 Instead of using the CPU to zero and copy pages, use a Data Mover
1585 channel. These DMA channels are otherwise unused by the standard
1586 SiByte Linux port. Seems to give a small performance benefit.
1588 config CPU_HAS_PREFETCH
1592 prompt "MIPS MT options"
1594 config MIPS_MT_DISABLED
1595 bool "Disable multithreading support."
1597 Use this option if your workload can't take advantage of
1598 MIPS hardware multithreading support. On systems that don't have
1599 the option of an MT-enabled processor this option will be the only
1600 option in this menu.
1603 bool "Use 1 TC on each available VPE for SMP"
1604 depends on SYS_SUPPORTS_MULTITHREADING
1605 select CPU_MIPSR2_IRQ_VI
1606 select CPU_MIPSR2_IRQ_EI
1608 select NR_CPUS_DEFAULT_2
1610 select SYS_SUPPORTS_SCHED_SMT if SMP
1611 select SYS_SUPPORTS_SMP
1614 This is a kernel model which is also known a VSMP or lately
1615 has been marketesed into SMVP.
1618 bool "SMTC: Use all TCs on all VPEs for SMP"
1619 depends on CPU_MIPS32_R2
1620 #depends on CPU_MIPS64_R2 # once there is hardware ...
1621 depends on SYS_SUPPORTS_MULTITHREADING
1622 select CPU_MIPSR2_IRQ_VI
1623 select CPU_MIPSR2_IRQ_EI
1625 select NR_CPUS_DEFAULT_8
1627 select SYS_SUPPORTS_SMP
1630 This is a kernel model which is known a SMTC or lately has been
1631 marketesed into SMVP.
1639 bool "SMT (multithreading) scheduler support"
1640 depends on SYS_SUPPORTS_SCHED_SMT
1643 SMT scheduler support improves the CPU scheduler's decision making
1644 when dealing with MIPS MT enabled cores at a cost of slightly
1645 increased overhead in some places. If unsure say N here.
1647 config SYS_SUPPORTS_SCHED_SMT
1651 config SYS_SUPPORTS_MULTITHREADING
1654 config MIPS_MT_FPAFF
1655 bool "Dynamic FPU affinity for FP-intensive threads"
1657 depends on MIPS_MT_SMP || MIPS_MT_SMTC
1659 config MIPS_VPE_LOADER
1660 bool "VPE loader support."
1661 depends on SYS_SUPPORTS_MULTITHREADING
1662 select CPU_MIPSR2_IRQ_VI
1663 select CPU_MIPSR2_IRQ_EI
1666 Includes a loader for loading an elf relocatable object
1667 onto another VPE and running it.
1669 config MIPS_MT_SMTC_IM_BACKSTOP
1670 bool "Use per-TC register bits as backstop for inhibited IM bits"
1671 depends on MIPS_MT_SMTC
1674 To support multiple TC microthreads acting as "CPUs" within
1675 a VPE, VPE-wide interrupt mask bits must be specially manipulated
1676 during interrupt handling. To support legacy drivers and interrupt
1677 controller management code, SMTC has a "backstop" to track and
1678 if necessary restore the interrupt mask. This has some performance
1679 impact on interrupt service overhead.
1681 config MIPS_MT_SMTC_IRQAFF
1682 bool "Support IRQ affinity API"
1683 depends on MIPS_MT_SMTC
1686 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
1687 for SMTC Linux kernel. Requires platform support, of which
1688 an example can be found in the MIPS kernel i8259 and Malta
1689 platform code. Adds some overhead to interrupt dispatch, and
1690 should be used only if you know what you are doing.
1692 config MIPS_VPE_LOADER_TOM
1693 bool "Load VPE program into memory hidden from linux"
1694 depends on MIPS_VPE_LOADER
1697 The loader can use memory that is present but has been hidden from
1698 Linux using the kernel command line option "mem=xxMB". It's up to
1699 you to ensure the amount you put in the option and the space your
1700 program requires is less or equal to the amount physically present.
1702 # this should possibly be in drivers/char, but it is rather cpu related. Hmmm
1703 config MIPS_VPE_APSP_API
1704 bool "Enable support for AP/SP API (RTLX)"
1705 depends on MIPS_VPE_LOADER
1708 config MIPS_APSP_KSPD
1710 depends on MIPS_VPE_APSP_API
1713 KSPD is a kernel daemon that accepts syscall requests from the SP
1714 side, actions them and returns the results. It also handles the
1715 "exit" syscall notifying other kernel modules the SP program is
1716 exiting. You probably want to say yes here.
1719 bool "MIPS CMP framework support"
1720 depends on SYS_SUPPORTS_MIPS_CMP
1722 select SYS_SUPPORTS_SMP
1723 select SYS_SUPPORTS_SCHED_SMT if SMP
1724 select WEAK_ORDERING
1727 This is a placeholder option for the GCMP work. It will need to
1728 be handled differently...
1730 config SB1_PASS_1_WORKAROUNDS
1732 depends on CPU_SB1_PASS_1
1735 config SB1_PASS_2_WORKAROUNDS
1737 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
1740 config SB1_PASS_2_1_WORKAROUNDS
1742 depends on CPU_SB1 && CPU_SB1_PASS_2
1745 config 64BIT_PHYS_ADDR
1748 config CPU_HAS_SMARTMIPS
1749 depends on SYS_SUPPORTS_SMARTMIPS
1750 bool "Support for the SmartMIPS ASE"
1752 SmartMIPS is a extension of the MIPS32 architecture aimed at
1753 increased security at both hardware and software level for
1754 smartcards. Enabling this option will allow proper use of the
1755 SmartMIPS instructions by Linux applications. However a kernel with
1756 this option will not work on a MIPS core without SmartMIPS core. If
1757 you don't know you probably don't have SmartMIPS and should say N
1764 # Vectored interrupt mode is an R2 feature
1766 config CPU_MIPSR2_IRQ_VI
1770 # Extended interrupt mode is an R2 feature
1772 config CPU_MIPSR2_IRQ_EI
1777 depends on !CPU_R3000
1780 config GENERIC_CLOCKEVENTS_BROADCAST
1786 config CPU_DADDI_WORKAROUNDS
1789 config CPU_R4000_WORKAROUNDS
1791 select CPU_R4400_WORKAROUNDS
1793 config CPU_R4400_WORKAROUNDS
1797 # Use the generic interrupt handling code in kernel/irq/:
1799 config GENERIC_HARDIRQS
1803 config GENERIC_IRQ_PROBE
1811 # - Highmem only makes sense for the 32-bit kernel.
1812 # - The current highmem code will only work properly on physically indexed
1813 # caches such as R3000, SB1, R7000 or those that look like they're virtually
1814 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
1815 # moment we protect the user and offer the highmem option only on machines
1816 # where it's known to be safe. This will not offer highmem on a few systems
1817 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
1818 # indexed CPUs but we're playing safe.
1819 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
1820 # know they might have memory configurations that could make use of highmem
1824 bool "High Memory Support"
1825 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
1827 config CPU_SUPPORTS_HIGHMEM
1830 config SYS_SUPPORTS_HIGHMEM
1833 config SYS_SUPPORTS_SMARTMIPS
1836 config ARCH_FLATMEM_ENABLE
1838 depends on !NUMA && !CPU_LOONGSON2
1840 config ARCH_DISCONTIGMEM_ENABLE
1842 default y if SGI_IP27
1844 Say Y to support efficient handling of discontiguous physical memory,
1845 for architectures which are either NUMA (Non-Uniform Memory Access)
1846 or have huge holes in the physical address space for other reasons.
1847 See <file:Documentation/vm/numa> for more.
1849 config ARCH_POPULATES_NODE_MAP
1852 config ARCH_SPARSEMEM_ENABLE
1854 select SPARSEMEM_STATIC
1858 depends on SYS_SUPPORTS_NUMA
1860 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
1861 Access). This option improves performance on systems with more
1862 than two nodes; on two node systems it is generally better to
1863 leave it disabled; on single node systems disable this option
1866 config SYS_SUPPORTS_NUMA
1872 depends on NEED_MULTIPLE_NODES
1877 bool "Multi-Processing support"
1878 depends on SYS_SUPPORTS_SMP
1880 select USE_GENERIC_SMP_HELPERS
1882 This enables support for systems with more than one CPU. If you have
1883 a system with only one CPU, like most personal computers, say N. If
1884 you have a system with more than one CPU, say Y.
1886 If you say N here, the kernel will run on single and multiprocessor
1887 machines, but will use only one CPU of a multiprocessor machine. If
1888 you say Y here, the kernel will run on many, but not all,
1889 singleprocessor machines. On a singleprocessor machine, the kernel
1890 will run faster if you say N here.
1892 People using multiprocessor machines who say Y here should also say
1893 Y to "Enhanced Real Time Clock Support", below.
1895 See also the SMP-HOWTO available at
1896 <http://www.tldp.org/docs.html#howto>.
1898 If you don't know what to do here, say N.
1903 config SYS_SUPPORTS_MIPS_CMP
1906 config SYS_SUPPORTS_SMP
1909 config NR_CPUS_DEFAULT_1
1912 config NR_CPUS_DEFAULT_2
1915 config NR_CPUS_DEFAULT_4
1918 config NR_CPUS_DEFAULT_8
1921 config NR_CPUS_DEFAULT_16
1924 config NR_CPUS_DEFAULT_32
1927 config NR_CPUS_DEFAULT_64
1931 int "Maximum number of CPUs (2-64)"
1932 range 1 64 if NR_CPUS_DEFAULT_1
1934 default "1" if NR_CPUS_DEFAULT_1
1935 default "2" if NR_CPUS_DEFAULT_2
1936 default "4" if NR_CPUS_DEFAULT_4
1937 default "8" if NR_CPUS_DEFAULT_8
1938 default "16" if NR_CPUS_DEFAULT_16
1939 default "32" if NR_CPUS_DEFAULT_32
1940 default "64" if NR_CPUS_DEFAULT_64
1942 This allows you to specify the maximum number of CPUs which this
1943 kernel will support. The maximum supported value is 32 for 32-bit
1944 kernel and 64 for 64-bit kernels; the minimum value which makes
1945 sense is 1 for Qemu (useful only for kernel debugging purposes)
1946 and 2 for all others.
1948 This is purely to save memory - each supported CPU adds
1949 approximately eight kilobytes to the kernel image. For best
1950 performance should round up your number of processors to the next
1953 source "kernel/time/Kconfig"
1956 # Timer Interrupt Frequency Configuration
1960 prompt "Timer frequency"
1963 Allows the configuration of the timer frequency.
1966 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
1969 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
1972 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
1975 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
1978 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
1981 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
1984 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
1988 config SYS_SUPPORTS_48HZ
1991 config SYS_SUPPORTS_100HZ
1994 config SYS_SUPPORTS_128HZ
1997 config SYS_SUPPORTS_250HZ
2000 config SYS_SUPPORTS_256HZ
2003 config SYS_SUPPORTS_1000HZ
2006 config SYS_SUPPORTS_1024HZ
2009 config SYS_SUPPORTS_ARBIT_HZ
2011 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2012 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2013 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2014 !SYS_SUPPORTS_1024HZ
2019 default 100 if HZ_100
2020 default 128 if HZ_128
2021 default 250 if HZ_250
2022 default 256 if HZ_256
2023 default 1000 if HZ_1000
2024 default 1024 if HZ_1024
2026 source "kernel/Kconfig.preempt"
2028 config MIPS_INSANE_LARGE
2029 bool "Support for large 64-bit configurations"
2030 depends on CPU_R10000 && 64BIT
2032 MIPS R10000 does support a 44 bit / 16TB address space as opposed to
2033 previous 64-bit processors which only supported 40 bit / 1TB. If you
2034 need processes of more than 1TB virtual address space, say Y here.
2035 This will result in additional memory usage, so it is not
2036 recommended for normal users.
2039 bool "Kexec system call (EXPERIMENTAL)"
2040 depends on EXPERIMENTAL
2042 kexec is a system call that implements the ability to shutdown your
2043 current kernel, and to start another kernel. It is like a reboot
2044 but it is independent of the system firmware. And like a reboot
2045 you can start any kernel with it, not just Linux.
2047 The name comes from the similarity to the exec system call.
2049 It is an ongoing process to be certain the hardware in a machine
2050 is properly shutdown, so do not be surprised if this code does not
2051 initially work for you. It may help to enable device hotplugging
2052 support. As of this writing the exact hardware interface is
2053 strongly in flux, so no good recommendation can be made.
2056 bool "Enable seccomp to safely compute untrusted bytecode"
2060 This kernel feature is useful for number crunching applications
2061 that may need to compute untrusted bytecode during their
2062 execution. By using pipes or other transports made available to
2063 the process as file descriptors supporting the read/write
2064 syscalls, it's possible to isolate those applications in
2065 their own address space using seccomp. Once seccomp is
2066 enabled via /proc/<pid>/seccomp, it cannot be disabled
2067 and the task is only allowed to execute a few safe syscalls
2068 defined by each seccomp mode.
2070 If unsure, say Y. Only embedded should say N here.
2074 config LOCKDEP_SUPPORT
2078 config STACKTRACE_SUPPORT
2082 source "init/Kconfig"
2084 source "kernel/Kconfig.freezer"
2086 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2094 bool "Support for PCI controller"
2095 depends on HW_HAS_PCI
2098 Find out whether you have a PCI motherboard. PCI is the name of a
2099 bus system, i.e. the way the CPU talks to the other stuff inside
2100 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2106 source "drivers/pci/Kconfig"
2109 # ISA support is now enabled via select. Too many systems still have the one
2110 # or other ISA chip on the board that users don't know about so don't expect
2111 # users to choose the right thing ...
2118 depends on HW_HAS_EISA
2120 select GENERIC_ISA_DMA
2122 The Extended Industry Standard Architecture (EISA) bus was
2123 developed as an open alternative to the IBM MicroChannel bus.
2125 The EISA bus provided some of the features of the IBM MicroChannel
2126 bus while maintaining backward compatibility with cards made for
2127 the older ISA bus. The EISA bus saw limited use between 1988 and
2128 1995 when it was made obsolete by the PCI bus.
2130 Say Y here if you are building a kernel for an EISA-based machine.
2134 source "drivers/eisa/Kconfig"
2137 bool "TURBOchannel support"
2138 depends on MACH_DECSTATION
2140 TurboChannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2141 processors. Documentation on writing device drivers for TurboChannel
2143 <http://www.cs.arizona.edu/computer.help/policy/DIGITAL_unix/AA-PS3HD-TET1_html/TITLE.html>.
2146 # bool "Access.Bus support"
2155 select MIPS_EXTERNAL_TIMER
2160 source "drivers/pcmcia/Kconfig"
2162 source "drivers/pci/hotplug/Kconfig"
2166 menu "Executable file formats"
2168 source "fs/Kconfig.binfmt"
2173 config MIPS32_COMPAT
2174 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2177 Select this option if you want Linux/MIPS 32-bit binary
2178 compatibility. Since all software available for Linux/MIPS is
2179 currently 32-bit you should say Y here.
2183 depends on MIPS32_COMPAT
2186 config SYSVIPC_COMPAT
2188 depends on COMPAT && SYSVIPC
2192 bool "Kernel support for o32 binaries"
2193 depends on MIPS32_COMPAT
2195 Select this option if you want to run o32 binaries. These are pure
2196 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2197 existing binaries are in this format.
2202 bool "Kernel support for n32 binaries"
2203 depends on MIPS32_COMPAT
2205 Select this option if you want to run n32 binaries. These are
2206 64-bit binaries using 32-bit quantities for addressing and certain
2207 data that would normally be 64-bit. They are used in special
2214 default y if MIPS32_O32 || MIPS32_N32
2218 menu "Power management options"
2220 config ARCH_HIBERNATION_POSSIBLE
2222 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2224 config ARCH_SUSPEND_POSSIBLE
2226 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2228 source "kernel/power/Kconfig"
2232 source "arch/mips/kernel/cpufreq/Kconfig"
2234 source "net/Kconfig"
2236 source "drivers/Kconfig"
2240 source "arch/mips/Kconfig.debug"
2242 source "security/Kconfig"
2244 source "crypto/Kconfig"
2246 source "lib/Kconfig"