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
841 bool "Early printk" if EMBEDDED && DEBUG_KERNEL
842 depends on SYS_HAS_EARLY_PRINTK
845 This option enables special console drivers which allow the kernel
846 to print messages very early in the bootup process.
848 This is useful for kernel debugging when your machine crashes very
849 early before the console code is initialized. For normal operation,
850 it is not recommended because it looks ugly on some machines and
851 doesn't cooperate with an X server. You should normally say N here,
852 unless you want to debug such a crash.
854 config SYS_HAS_EARLY_PRINTK
858 bool "Support for hot-pluggable CPUs"
859 depends on SMP && HOTPLUG && SYS_SUPPORTS_HOTPLUG_CPU
861 Say Y here to allow turning CPUs off and on. CPUs can be
862 controlled through /sys/devices/system/cpu.
863 (Note: power management support will enable this option
864 automatically on SMP systems. )
865 Say N if you want to disable CPU hotplug.
867 config SYS_SUPPORTS_HOTPLUG_CPU
882 config MIPS_DISABLE_OBSOLETE_IDE
891 config GENERIC_ISA_DMA
893 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
895 config GENERIC_ISA_DMA_SUPPORT_BROKEN
897 select GENERIC_ISA_DMA
903 # Endianess selection. Sufficiently obscure so many users don't know what to
904 # answer,so we try hard to limit the available choices. Also the use of a
905 # choice statement should be more obvious to the user.
908 prompt "Endianess selection"
910 Some MIPS machines can be configured for either little or big endian
911 byte order. These modes require different kernels and a different
912 Linux distribution. In general there is one preferred byteorder for a
913 particular system but some systems are just as commonly used in the
914 one or the other endianness.
916 config CPU_BIG_ENDIAN
918 depends on SYS_SUPPORTS_BIG_ENDIAN
920 config CPU_LITTLE_ENDIAN
922 depends on SYS_SUPPORTS_LITTLE_ENDIAN
927 config SYS_SUPPORTS_APM_EMULATION
930 config SYS_SUPPORTS_BIG_ENDIAN
933 config SYS_SUPPORTS_LITTLE_ENDIAN
936 config SYS_SUPPORTS_HUGETLBFS
938 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
965 config IRQ_CPU_OCTEON
968 config MIPS_BOARDS_GEN
971 config PCI_GT64XXX_PCI0
974 config NO_EXCEPT_FILL
985 select DMA_NONCOHERENT
988 select SYS_HAS_CPU_R5500
989 select SYS_SUPPORTS_32BIT_KERNEL
990 select SYS_SUPPORTS_64BIT_KERNEL
991 select SYS_SUPPORTS_BIG_ENDIAN
998 select DMA_NONCOHERENT
999 select SYS_HAS_CPU_MIPS32_R2
1000 select SYS_SUPPORTS_32BIT_KERNEL
1001 select SYS_SUPPORTS_LITTLE_ENDIAN
1002 select SYS_SUPPORTS_BIG_ENDIAN
1004 select CPU_MIPSR2_IRQ_VI
1016 select DMA_NONCOHERENT
1018 select SYS_HAS_CPU_MIPS32_R1
1019 select SYS_HAS_EARLY_PRINTK
1020 select SYS_SUPPORTS_32BIT_KERNEL
1023 config SWAP_IO_SPACE
1026 config SERIAL_RM9000
1029 config SGI_HAS_INDYDOG
1041 config SGI_HAS_ZILOG
1044 config SGI_HAS_I8042
1047 config DEFAULT_SGI_PARTITION
1059 config MIPS_L1_CACHE_SHIFT
1061 default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL
1062 default "6" if MIPS_CPU_SCACHE
1063 default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON
1066 config HAVE_STD_PC_SERIAL_PORT
1070 bool "ARC console support"
1071 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1075 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1080 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1089 menu "CPU selection"
1095 config CPU_LOONGSON2E
1097 depends on SYS_HAS_CPU_LOONGSON2E
1098 select CPU_LOONGSON2
1100 The Loongson 2E processor implements the MIPS III instruction set
1101 with many extensions.
1103 It has an internal FPGA northbridge, which is compatiable to
1106 config CPU_LOONGSON2F
1108 depends on SYS_HAS_CPU_LOONGSON2F
1109 select CPU_LOONGSON2
1111 The Loongson 2F processor implements the MIPS III instruction set
1112 with many extensions.
1114 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1115 have a similar programming interface with FPGA northbridge used in
1118 config CPU_MIPS32_R1
1119 bool "MIPS32 Release 1"
1120 depends on SYS_HAS_CPU_MIPS32_R1
1121 select CPU_HAS_PREFETCH
1122 select CPU_SUPPORTS_32BIT_KERNEL
1123 select CPU_SUPPORTS_HIGHMEM
1125 Choose this option to build a kernel for release 1 or later of the
1126 MIPS32 architecture. Most modern embedded systems with a 32-bit
1127 MIPS processor are based on a MIPS32 processor. If you know the
1128 specific type of processor in your system, choose those that one
1129 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1130 Release 2 of the MIPS32 architecture is available since several
1131 years so chances are you even have a MIPS32 Release 2 processor
1132 in which case you should choose CPU_MIPS32_R2 instead for better
1135 config CPU_MIPS32_R2
1136 bool "MIPS32 Release 2"
1137 depends on SYS_HAS_CPU_MIPS32_R2
1138 select CPU_HAS_PREFETCH
1139 select CPU_SUPPORTS_32BIT_KERNEL
1140 select CPU_SUPPORTS_HIGHMEM
1142 Choose this option to build a kernel for release 2 or later of the
1143 MIPS32 architecture. Most modern embedded systems with a 32-bit
1144 MIPS processor are based on a MIPS32 processor. If you know the
1145 specific type of processor in your system, choose those that one
1146 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1148 config CPU_MIPS64_R1
1149 bool "MIPS64 Release 1"
1150 depends on SYS_HAS_CPU_MIPS64_R1
1151 select CPU_HAS_PREFETCH
1152 select CPU_SUPPORTS_32BIT_KERNEL
1153 select CPU_SUPPORTS_64BIT_KERNEL
1154 select CPU_SUPPORTS_HIGHMEM
1155 select CPU_SUPPORTS_HUGEPAGES
1157 Choose this option to build a kernel for release 1 or later of the
1158 MIPS64 architecture. Many modern embedded systems with a 64-bit
1159 MIPS processor are based on a MIPS64 processor. If you know the
1160 specific type of processor in your system, choose those that one
1161 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1162 Release 2 of the MIPS64 architecture is available since several
1163 years so chances are you even have a MIPS64 Release 2 processor
1164 in which case you should choose CPU_MIPS64_R2 instead for better
1167 config CPU_MIPS64_R2
1168 bool "MIPS64 Release 2"
1169 depends on SYS_HAS_CPU_MIPS64_R2
1170 select CPU_HAS_PREFETCH
1171 select CPU_SUPPORTS_32BIT_KERNEL
1172 select CPU_SUPPORTS_64BIT_KERNEL
1173 select CPU_SUPPORTS_HIGHMEM
1174 select CPU_SUPPORTS_HUGEPAGES
1176 Choose this option to build a kernel for release 2 or later of the
1177 MIPS64 architecture. Many modern embedded systems with a 64-bit
1178 MIPS processor are based on a MIPS64 processor. If you know the
1179 specific type of processor in your system, choose those that one
1180 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1184 depends on SYS_HAS_CPU_R3000
1186 select CPU_SUPPORTS_32BIT_KERNEL
1187 select CPU_SUPPORTS_HIGHMEM
1189 Please make sure to pick the right CPU type. Linux/MIPS is not
1190 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1191 *not* work on R4000 machines and vice versa. However, since most
1192 of the supported machines have an R4000 (or similar) CPU, R4x00
1193 might be a safe bet. If the resulting kernel does not work,
1194 try to recompile with R3000.
1198 depends on SYS_HAS_CPU_TX39XX
1199 select CPU_SUPPORTS_32BIT_KERNEL
1203 depends on SYS_HAS_CPU_VR41XX
1204 select CPU_SUPPORTS_32BIT_KERNEL
1205 select CPU_SUPPORTS_64BIT_KERNEL
1207 The options selects support for the NEC VR4100 series of processors.
1208 Only choose this option if you have one of these processors as a
1209 kernel built with this option will not run on any other type of
1210 processor or vice versa.
1214 depends on SYS_HAS_CPU_R4300
1215 select CPU_SUPPORTS_32BIT_KERNEL
1216 select CPU_SUPPORTS_64BIT_KERNEL
1218 MIPS Technologies R4300-series processors.
1222 depends on SYS_HAS_CPU_R4X00
1223 select CPU_SUPPORTS_32BIT_KERNEL
1224 select CPU_SUPPORTS_64BIT_KERNEL
1226 MIPS Technologies R4000-series processors other than 4300, including
1227 the R4000, R4400, R4600, and 4700.
1231 depends on SYS_HAS_CPU_TX49XX
1232 select CPU_HAS_PREFETCH
1233 select CPU_SUPPORTS_32BIT_KERNEL
1234 select CPU_SUPPORTS_64BIT_KERNEL
1238 depends on SYS_HAS_CPU_R5000
1239 select CPU_SUPPORTS_32BIT_KERNEL
1240 select CPU_SUPPORTS_64BIT_KERNEL
1242 MIPS Technologies R5000-series processors other than the Nevada.
1246 depends on SYS_HAS_CPU_R5432
1247 select CPU_SUPPORTS_32BIT_KERNEL
1248 select CPU_SUPPORTS_64BIT_KERNEL
1252 depends on SYS_HAS_CPU_R5500
1253 select CPU_SUPPORTS_32BIT_KERNEL
1254 select CPU_SUPPORTS_64BIT_KERNEL
1255 select CPU_SUPPORTS_HUGEPAGES
1257 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1262 depends on EXPERIMENTAL
1263 depends on SYS_HAS_CPU_R6000
1264 select CPU_SUPPORTS_32BIT_KERNEL
1266 MIPS Technologies R6000 and R6000A series processors. Note these
1267 processors are extremely rare and the support for them is incomplete.
1271 depends on SYS_HAS_CPU_NEVADA
1272 select CPU_SUPPORTS_32BIT_KERNEL
1273 select CPU_SUPPORTS_64BIT_KERNEL
1275 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1279 depends on EXPERIMENTAL
1280 depends on SYS_HAS_CPU_R8000
1281 select CPU_HAS_PREFETCH
1282 select CPU_SUPPORTS_64BIT_KERNEL
1284 MIPS Technologies R8000 processors. Note these processors are
1285 uncommon and the support for them is incomplete.
1289 depends on SYS_HAS_CPU_R10000
1290 select CPU_HAS_PREFETCH
1291 select CPU_SUPPORTS_32BIT_KERNEL
1292 select CPU_SUPPORTS_64BIT_KERNEL
1293 select CPU_SUPPORTS_HIGHMEM
1295 MIPS Technologies R10000-series processors.
1299 depends on SYS_HAS_CPU_RM7000
1300 select CPU_HAS_PREFETCH
1301 select CPU_SUPPORTS_32BIT_KERNEL
1302 select CPU_SUPPORTS_64BIT_KERNEL
1303 select CPU_SUPPORTS_HIGHMEM
1307 depends on SYS_HAS_CPU_RM9000
1308 select CPU_HAS_PREFETCH
1309 select CPU_SUPPORTS_32BIT_KERNEL
1310 select CPU_SUPPORTS_64BIT_KERNEL
1311 select CPU_SUPPORTS_HIGHMEM
1312 select WEAK_ORDERING
1316 depends on SYS_HAS_CPU_SB1
1317 select CPU_SUPPORTS_32BIT_KERNEL
1318 select CPU_SUPPORTS_64BIT_KERNEL
1319 select CPU_SUPPORTS_HIGHMEM
1320 select WEAK_ORDERING
1322 config CPU_CAVIUM_OCTEON
1323 bool "Cavium Octeon processor"
1324 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1326 select IRQ_CPU_OCTEON
1327 select CPU_HAS_PREFETCH
1328 select CPU_SUPPORTS_64BIT_KERNEL
1329 select SYS_SUPPORTS_SMP
1330 select NR_CPUS_DEFAULT_16
1331 select WEAK_ORDERING
1332 select WEAK_REORDERING_BEYOND_LLSC
1333 select CPU_SUPPORTS_HIGHMEM
1334 select CPU_SUPPORTS_HUGEPAGES
1336 The Cavium Octeon processor is a highly integrated chip containing
1337 many ethernet hardware widgets for networking tasks. The processor
1338 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1339 Full details can be found at http://www.caviumnetworks.com.
1343 config SYS_SUPPORTS_ZBOOT
1345 select HAVE_KERNEL_GZIP
1346 select HAVE_KERNEL_BZIP2
1347 select HAVE_KERNEL_LZMA
1349 config SYS_SUPPORTS_ZBOOT_UART16550
1351 select SYS_SUPPORTS_ZBOOT
1353 config CPU_LOONGSON2
1355 select CPU_SUPPORTS_32BIT_KERNEL
1356 select CPU_SUPPORTS_64BIT_KERNEL
1357 select CPU_SUPPORTS_HIGHMEM
1359 config SYS_HAS_CPU_LOONGSON2E
1362 config SYS_HAS_CPU_LOONGSON2F
1364 select CPU_SUPPORTS_CPUFREQ
1365 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1366 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1368 config SYS_HAS_CPU_MIPS32_R1
1371 config SYS_HAS_CPU_MIPS32_R2
1374 config SYS_HAS_CPU_MIPS64_R1
1377 config SYS_HAS_CPU_MIPS64_R2
1380 config SYS_HAS_CPU_R3000
1383 config SYS_HAS_CPU_TX39XX
1386 config SYS_HAS_CPU_VR41XX
1389 config SYS_HAS_CPU_R4300
1392 config SYS_HAS_CPU_R4X00
1395 config SYS_HAS_CPU_TX49XX
1398 config SYS_HAS_CPU_R5000
1401 config SYS_HAS_CPU_R5432
1404 config SYS_HAS_CPU_R5500
1407 config SYS_HAS_CPU_R6000
1410 config SYS_HAS_CPU_NEVADA
1413 config SYS_HAS_CPU_R8000
1416 config SYS_HAS_CPU_R10000
1419 config SYS_HAS_CPU_RM7000
1422 config SYS_HAS_CPU_RM9000
1425 config SYS_HAS_CPU_SB1
1428 config SYS_HAS_CPU_CAVIUM_OCTEON
1432 # CPU may reorder R->R, R->W, W->R, W->W
1433 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1435 config WEAK_ORDERING
1439 # CPU may reorder reads and writes beyond LL/SC
1440 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1442 config WEAK_REORDERING_BEYOND_LLSC
1447 # These two indicate any level of the MIPS32 and MIPS64 architecture
1451 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1455 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1458 # These two indicate the revision of the architecture, either Release 1 or Release 2
1462 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1466 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1468 config SYS_SUPPORTS_32BIT_KERNEL
1470 config SYS_SUPPORTS_64BIT_KERNEL
1472 config CPU_SUPPORTS_32BIT_KERNEL
1474 config CPU_SUPPORTS_64BIT_KERNEL
1476 config CPU_SUPPORTS_CPUFREQ
1478 config CPU_SUPPORTS_ADDRWINCFG
1480 config CPU_SUPPORTS_HUGEPAGES
1482 config CPU_SUPPORTS_UNCACHED_ACCELERATED
1484 config MIPS_PGD_C0_CONTEXT
1486 default y if 64BIT && CPU_MIPSR2
1489 # Set to y for ptrace access to watch registers.
1491 config HARDWARE_WATCHPOINTS
1493 default y if CPU_MIPSR1 || CPU_MIPSR2
1499 prompt "Kernel code model"
1501 You should only select this option if you have a workload that
1502 actually benefits from 64-bit processing or if your machine has
1503 large memory. You will only be presented a single option in this
1504 menu if your system does not support both 32-bit and 64-bit kernels.
1507 bool "32-bit kernel"
1508 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1511 Select this option if you want to build a 32-bit kernel.
1513 bool "64-bit kernel"
1514 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1515 select HAVE_SYSCALL_WRAPPERS
1517 Select this option if you want to build a 64-bit kernel.
1522 prompt "Kernel page size"
1523 default PAGE_SIZE_4KB
1525 config PAGE_SIZE_4KB
1527 depends on !CPU_LOONGSON2
1529 This option select the standard 4kB Linux page size. On some
1530 R3000-family processors this is the only available page size. Using
1531 4kB page size will minimize memory consumption and is therefore
1532 recommended for low memory systems.
1534 config PAGE_SIZE_8KB
1536 depends on (EXPERIMENTAL && CPU_R8000) || CPU_CAVIUM_OCTEON
1538 Using 8kB page size will result in higher performance kernel at
1539 the price of higher memory consumption. This option is available
1540 only on R8000 and cnMIPS processors. Note that you will need a
1541 suitable Linux distribution to support this.
1543 config PAGE_SIZE_16KB
1545 depends on !CPU_R3000 && !CPU_TX39XX
1547 Using 16kB page size will result in higher performance kernel at
1548 the price of higher memory consumption. This option is available on
1549 all non-R3000 family processors. Note that you will need a suitable
1550 Linux distribution to support this.
1552 config PAGE_SIZE_32KB
1554 depends on CPU_CAVIUM_OCTEON
1556 Using 32kB page size will result in higher performance kernel at
1557 the price of higher memory consumption. This option is available
1558 only on cnMIPS cores. Note that you will need a suitable Linux
1559 distribution to support this.
1561 config PAGE_SIZE_64KB
1563 depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
1565 Using 64kB page size will result in higher performance kernel at
1566 the price of higher memory consumption. This option is available on
1567 all non-R3000 family processor. Not that at the time of this
1568 writing this option is still high experimental.
1575 config IP22_CPU_SCACHE
1580 # Support for a MIPS32 / MIPS64 style S-caches
1582 config MIPS_CPU_SCACHE
1586 config R5000_CPU_SCACHE
1590 config RM7000_CPU_SCACHE
1594 config SIBYTE_DMA_PAGEOPS
1595 bool "Use DMA to clear/copy pages"
1598 Instead of using the CPU to zero and copy pages, use a Data Mover
1599 channel. These DMA channels are otherwise unused by the standard
1600 SiByte Linux port. Seems to give a small performance benefit.
1602 config CPU_HAS_PREFETCH
1606 prompt "MIPS MT options"
1608 config MIPS_MT_DISABLED
1609 bool "Disable multithreading support."
1611 Use this option if your workload can't take advantage of
1612 MIPS hardware multithreading support. On systems that don't have
1613 the option of an MT-enabled processor this option will be the only
1614 option in this menu.
1617 bool "Use 1 TC on each available VPE for SMP"
1618 depends on SYS_SUPPORTS_MULTITHREADING
1619 select CPU_MIPSR2_IRQ_VI
1620 select CPU_MIPSR2_IRQ_EI
1622 select NR_CPUS_DEFAULT_2
1624 select SYS_SUPPORTS_SCHED_SMT if SMP
1625 select SYS_SUPPORTS_SMP
1628 This is a kernel model which is also known a VSMP or lately
1629 has been marketesed into SMVP.
1632 bool "SMTC: Use all TCs on all VPEs for SMP"
1633 depends on CPU_MIPS32_R2
1634 #depends on CPU_MIPS64_R2 # once there is hardware ...
1635 depends on SYS_SUPPORTS_MULTITHREADING
1636 select CPU_MIPSR2_IRQ_VI
1637 select CPU_MIPSR2_IRQ_EI
1639 select NR_CPUS_DEFAULT_8
1641 select SYS_SUPPORTS_SMP
1644 This is a kernel model which is known a SMTC or lately has been
1645 marketesed into SMVP.
1653 bool "SMT (multithreading) scheduler support"
1654 depends on SYS_SUPPORTS_SCHED_SMT
1657 SMT scheduler support improves the CPU scheduler's decision making
1658 when dealing with MIPS MT enabled cores at a cost of slightly
1659 increased overhead in some places. If unsure say N here.
1661 config SYS_SUPPORTS_SCHED_SMT
1665 config SYS_SUPPORTS_MULTITHREADING
1668 config MIPS_MT_FPAFF
1669 bool "Dynamic FPU affinity for FP-intensive threads"
1671 depends on MIPS_MT_SMP || MIPS_MT_SMTC
1673 config MIPS_VPE_LOADER
1674 bool "VPE loader support."
1675 depends on SYS_SUPPORTS_MULTITHREADING
1676 select CPU_MIPSR2_IRQ_VI
1677 select CPU_MIPSR2_IRQ_EI
1680 Includes a loader for loading an elf relocatable object
1681 onto another VPE and running it.
1683 config MIPS_MT_SMTC_IM_BACKSTOP
1684 bool "Use per-TC register bits as backstop for inhibited IM bits"
1685 depends on MIPS_MT_SMTC
1688 To support multiple TC microthreads acting as "CPUs" within
1689 a VPE, VPE-wide interrupt mask bits must be specially manipulated
1690 during interrupt handling. To support legacy drivers and interrupt
1691 controller management code, SMTC has a "backstop" to track and
1692 if necessary restore the interrupt mask. This has some performance
1693 impact on interrupt service overhead.
1695 config MIPS_MT_SMTC_IRQAFF
1696 bool "Support IRQ affinity API"
1697 depends on MIPS_MT_SMTC
1700 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
1701 for SMTC Linux kernel. Requires platform support, of which
1702 an example can be found in the MIPS kernel i8259 and Malta
1703 platform code. Adds some overhead to interrupt dispatch, and
1704 should be used only if you know what you are doing.
1706 config MIPS_VPE_LOADER_TOM
1707 bool "Load VPE program into memory hidden from linux"
1708 depends on MIPS_VPE_LOADER
1711 The loader can use memory that is present but has been hidden from
1712 Linux using the kernel command line option "mem=xxMB". It's up to
1713 you to ensure the amount you put in the option and the space your
1714 program requires is less or equal to the amount physically present.
1716 # this should possibly be in drivers/char, but it is rather cpu related. Hmmm
1717 config MIPS_VPE_APSP_API
1718 bool "Enable support for AP/SP API (RTLX)"
1719 depends on MIPS_VPE_LOADER
1722 config MIPS_APSP_KSPD
1724 depends on MIPS_VPE_APSP_API
1727 KSPD is a kernel daemon that accepts syscall requests from the SP
1728 side, actions them and returns the results. It also handles the
1729 "exit" syscall notifying other kernel modules the SP program is
1730 exiting. You probably want to say yes here.
1733 bool "MIPS CMP framework support"
1734 depends on SYS_SUPPORTS_MIPS_CMP
1736 select SYS_SUPPORTS_SMP
1737 select SYS_SUPPORTS_SCHED_SMT if SMP
1738 select WEAK_ORDERING
1741 This is a placeholder option for the GCMP work. It will need to
1742 be handled differently...
1744 config SB1_PASS_1_WORKAROUNDS
1746 depends on CPU_SB1_PASS_1
1749 config SB1_PASS_2_WORKAROUNDS
1751 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
1754 config SB1_PASS_2_1_WORKAROUNDS
1756 depends on CPU_SB1 && CPU_SB1_PASS_2
1759 config 64BIT_PHYS_ADDR
1762 config CPU_HAS_SMARTMIPS
1763 depends on SYS_SUPPORTS_SMARTMIPS
1764 bool "Support for the SmartMIPS ASE"
1766 SmartMIPS is a extension of the MIPS32 architecture aimed at
1767 increased security at both hardware and software level for
1768 smartcards. Enabling this option will allow proper use of the
1769 SmartMIPS instructions by Linux applications. However a kernel with
1770 this option will not work on a MIPS core without SmartMIPS core. If
1771 you don't know you probably don't have SmartMIPS and should say N
1778 # Vectored interrupt mode is an R2 feature
1780 config CPU_MIPSR2_IRQ_VI
1784 # Extended interrupt mode is an R2 feature
1786 config CPU_MIPSR2_IRQ_EI
1791 depends on !CPU_R3000
1794 config GENERIC_CLOCKEVENTS_BROADCAST
1800 config CPU_DADDI_WORKAROUNDS
1803 config CPU_R4000_WORKAROUNDS
1805 select CPU_R4400_WORKAROUNDS
1807 config CPU_R4400_WORKAROUNDS
1811 # Use the generic interrupt handling code in kernel/irq/:
1813 config GENERIC_HARDIRQS
1817 config GENERIC_IRQ_PROBE
1825 # - Highmem only makes sense for the 32-bit kernel.
1826 # - The current highmem code will only work properly on physically indexed
1827 # caches such as R3000, SB1, R7000 or those that look like they're virtually
1828 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
1829 # moment we protect the user and offer the highmem option only on machines
1830 # where it's known to be safe. This will not offer highmem on a few systems
1831 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
1832 # indexed CPUs but we're playing safe.
1833 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
1834 # know they might have memory configurations that could make use of highmem
1838 bool "High Memory Support"
1839 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
1841 config CPU_SUPPORTS_HIGHMEM
1844 config SYS_SUPPORTS_HIGHMEM
1847 config SYS_SUPPORTS_SMARTMIPS
1850 config ARCH_FLATMEM_ENABLE
1852 depends on !NUMA && !CPU_LOONGSON2
1854 config ARCH_DISCONTIGMEM_ENABLE
1856 default y if SGI_IP27
1858 Say Y to support efficient handling of discontiguous physical memory,
1859 for architectures which are either NUMA (Non-Uniform Memory Access)
1860 or have huge holes in the physical address space for other reasons.
1861 See <file:Documentation/vm/numa> for more.
1863 config ARCH_POPULATES_NODE_MAP
1866 config ARCH_SPARSEMEM_ENABLE
1868 select SPARSEMEM_STATIC
1872 depends on SYS_SUPPORTS_NUMA
1874 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
1875 Access). This option improves performance on systems with more
1876 than two nodes; on two node systems it is generally better to
1877 leave it disabled; on single node systems disable this option
1880 config SYS_SUPPORTS_NUMA
1886 depends on NEED_MULTIPLE_NODES
1891 bool "Multi-Processing support"
1892 depends on SYS_SUPPORTS_SMP
1894 select USE_GENERIC_SMP_HELPERS
1896 This enables support for systems with more than one CPU. If you have
1897 a system with only one CPU, like most personal computers, say N. If
1898 you have a system with more than one CPU, say Y.
1900 If you say N here, the kernel will run on single and multiprocessor
1901 machines, but will use only one CPU of a multiprocessor machine. If
1902 you say Y here, the kernel will run on many, but not all,
1903 singleprocessor machines. On a singleprocessor machine, the kernel
1904 will run faster if you say N here.
1906 People using multiprocessor machines who say Y here should also say
1907 Y to "Enhanced Real Time Clock Support", below.
1909 See also the SMP-HOWTO available at
1910 <http://www.tldp.org/docs.html#howto>.
1912 If you don't know what to do here, say N.
1917 config SYS_SUPPORTS_MIPS_CMP
1920 config SYS_SUPPORTS_SMP
1923 config NR_CPUS_DEFAULT_1
1926 config NR_CPUS_DEFAULT_2
1929 config NR_CPUS_DEFAULT_4
1932 config NR_CPUS_DEFAULT_8
1935 config NR_CPUS_DEFAULT_16
1938 config NR_CPUS_DEFAULT_32
1941 config NR_CPUS_DEFAULT_64
1945 int "Maximum number of CPUs (2-64)"
1946 range 1 64 if NR_CPUS_DEFAULT_1
1948 default "1" if NR_CPUS_DEFAULT_1
1949 default "2" if NR_CPUS_DEFAULT_2
1950 default "4" if NR_CPUS_DEFAULT_4
1951 default "8" if NR_CPUS_DEFAULT_8
1952 default "16" if NR_CPUS_DEFAULT_16
1953 default "32" if NR_CPUS_DEFAULT_32
1954 default "64" if NR_CPUS_DEFAULT_64
1956 This allows you to specify the maximum number of CPUs which this
1957 kernel will support. The maximum supported value is 32 for 32-bit
1958 kernel and 64 for 64-bit kernels; the minimum value which makes
1959 sense is 1 for Qemu (useful only for kernel debugging purposes)
1960 and 2 for all others.
1962 This is purely to save memory - each supported CPU adds
1963 approximately eight kilobytes to the kernel image. For best
1964 performance should round up your number of processors to the next
1967 source "kernel/time/Kconfig"
1970 # Timer Interrupt Frequency Configuration
1974 prompt "Timer frequency"
1977 Allows the configuration of the timer frequency.
1980 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
1983 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
1986 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
1989 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
1992 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
1995 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
1998 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2002 config SYS_SUPPORTS_48HZ
2005 config SYS_SUPPORTS_100HZ
2008 config SYS_SUPPORTS_128HZ
2011 config SYS_SUPPORTS_250HZ
2014 config SYS_SUPPORTS_256HZ
2017 config SYS_SUPPORTS_1000HZ
2020 config SYS_SUPPORTS_1024HZ
2023 config SYS_SUPPORTS_ARBIT_HZ
2025 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2026 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2027 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2028 !SYS_SUPPORTS_1024HZ
2033 default 100 if HZ_100
2034 default 128 if HZ_128
2035 default 250 if HZ_250
2036 default 256 if HZ_256
2037 default 1000 if HZ_1000
2038 default 1024 if HZ_1024
2040 source "kernel/Kconfig.preempt"
2042 config MIPS_INSANE_LARGE
2043 bool "Support for large 64-bit configurations"
2044 depends on CPU_R10000 && 64BIT
2046 MIPS R10000 does support a 44 bit / 16TB address space as opposed to
2047 previous 64-bit processors which only supported 40 bit / 1TB. If you
2048 need processes of more than 1TB virtual address space, say Y here.
2049 This will result in additional memory usage, so it is not
2050 recommended for normal users.
2053 bool "Kexec system call (EXPERIMENTAL)"
2054 depends on EXPERIMENTAL
2056 kexec is a system call that implements the ability to shutdown your
2057 current kernel, and to start another kernel. It is like a reboot
2058 but it is independent of the system firmware. And like a reboot
2059 you can start any kernel with it, not just Linux.
2061 The name comes from the similarity to the exec system call.
2063 It is an ongoing process to be certain the hardware in a machine
2064 is properly shutdown, so do not be surprised if this code does not
2065 initially work for you. It may help to enable device hotplugging
2066 support. As of this writing the exact hardware interface is
2067 strongly in flux, so no good recommendation can be made.
2070 bool "Enable seccomp to safely compute untrusted bytecode"
2074 This kernel feature is useful for number crunching applications
2075 that may need to compute untrusted bytecode during their
2076 execution. By using pipes or other transports made available to
2077 the process as file descriptors supporting the read/write
2078 syscalls, it's possible to isolate those applications in
2079 their own address space using seccomp. Once seccomp is
2080 enabled via /proc/<pid>/seccomp, it cannot be disabled
2081 and the task is only allowed to execute a few safe syscalls
2082 defined by each seccomp mode.
2084 If unsure, say Y. Only embedded should say N here.
2088 config LOCKDEP_SUPPORT
2092 config STACKTRACE_SUPPORT
2096 source "init/Kconfig"
2098 source "kernel/Kconfig.freezer"
2100 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2108 bool "Support for PCI controller"
2109 depends on HW_HAS_PCI
2112 Find out whether you have a PCI motherboard. PCI is the name of a
2113 bus system, i.e. the way the CPU talks to the other stuff inside
2114 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2120 source "drivers/pci/Kconfig"
2123 # ISA support is now enabled via select. Too many systems still have the one
2124 # or other ISA chip on the board that users don't know about so don't expect
2125 # users to choose the right thing ...
2132 depends on HW_HAS_EISA
2134 select GENERIC_ISA_DMA
2136 The Extended Industry Standard Architecture (EISA) bus was
2137 developed as an open alternative to the IBM MicroChannel bus.
2139 The EISA bus provided some of the features of the IBM MicroChannel
2140 bus while maintaining backward compatibility with cards made for
2141 the older ISA bus. The EISA bus saw limited use between 1988 and
2142 1995 when it was made obsolete by the PCI bus.
2144 Say Y here if you are building a kernel for an EISA-based machine.
2148 source "drivers/eisa/Kconfig"
2151 bool "TURBOchannel support"
2152 depends on MACH_DECSTATION
2154 TurboChannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2155 processors. Documentation on writing device drivers for TurboChannel
2157 <http://www.cs.arizona.edu/computer.help/policy/DIGITAL_unix/AA-PS3HD-TET1_html/TITLE.html>.
2160 # bool "Access.Bus support"
2169 select MIPS_EXTERNAL_TIMER
2174 source "drivers/pcmcia/Kconfig"
2176 source "drivers/pci/hotplug/Kconfig"
2180 menu "Executable file formats"
2182 source "fs/Kconfig.binfmt"
2187 config MIPS32_COMPAT
2188 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2191 Select this option if you want Linux/MIPS 32-bit binary
2192 compatibility. Since all software available for Linux/MIPS is
2193 currently 32-bit you should say Y here.
2197 depends on MIPS32_COMPAT
2200 config SYSVIPC_COMPAT
2202 depends on COMPAT && SYSVIPC
2206 bool "Kernel support for o32 binaries"
2207 depends on MIPS32_COMPAT
2209 Select this option if you want to run o32 binaries. These are pure
2210 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2211 existing binaries are in this format.
2216 bool "Kernel support for n32 binaries"
2217 depends on MIPS32_COMPAT
2219 Select this option if you want to run n32 binaries. These are
2220 64-bit binaries using 32-bit quantities for addressing and certain
2221 data that would normally be 64-bit. They are used in special
2228 default y if MIPS32_O32 || MIPS32_N32
2232 menu "Power management options"
2234 config ARCH_HIBERNATION_POSSIBLE
2236 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2238 config ARCH_SUSPEND_POSSIBLE
2240 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2242 source "kernel/power/Kconfig"
2246 source "arch/mips/kernel/cpufreq/Kconfig"
2248 source "net/Kconfig"
2250 source "drivers/Kconfig"
2254 source "arch/mips/Kconfig.debug"
2256 source "security/Kconfig"
2258 source "crypto/Kconfig"
2260 source "lib/Kconfig"