4 select HAVE_GENERIC_DMA_COHERENT
7 select HAVE_PERF_EVENTS
8 select PERF_USE_VMALLOC
10 select ARCH_HAVE_CUSTOM_GPIO_H
11 select HAVE_FUNCTION_TRACER
12 select HAVE_FUNCTION_TRACE_MCOUNT_TEST
13 select HAVE_DYNAMIC_FTRACE
14 select HAVE_FTRACE_MCOUNT_RECORD
15 select HAVE_C_RECORDMCOUNT
16 select HAVE_FUNCTION_GRAPH_TRACER
18 select HAVE_KRETPROBES
19 select HAVE_DEBUG_KMEMLEAK
20 select ARCH_BINFMT_ELF_RANDOMIZE_PIE
21 select HAVE_ARCH_TRANSPARENT_HUGEPAGE
22 select RTC_LIB if !MACH_LOONGSON
23 select GENERIC_ATOMIC64 if !64BIT
24 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
26 select HAVE_DMA_API_DEBUG
27 select HAVE_GENERIC_HARDIRQS
28 select GENERIC_IRQ_PROBE
29 select GENERIC_IRQ_SHOW
30 select HAVE_ARCH_JUMP_LABEL
31 select ARCH_WANT_IPC_PARSE_VERSION
32 select IRQ_FORCED_THREADING
34 select HAVE_MEMBLOCK_NODE_MAP
35 select ARCH_DISCARD_MEMBLOCK
36 select GENERIC_SMP_IDLE_THREAD
37 select BUILDTIME_EXTABLE_SORT
38 select GENERIC_CLOCKEVENTS
39 select GENERIC_CMOS_UPDATE
40 select HAVE_MOD_ARCH_SPECIFIC
41 select MODULES_USE_ELF_REL if MODULES
42 select MODULES_USE_ELF_RELA if MODULES && 64BIT
44 menu "Machine selection"
54 bool "Alchemy processor based machines"
55 select 64BIT_PHYS_ADDR
59 select SYS_HAS_CPU_MIPS32_R1
60 select SYS_SUPPORTS_32BIT_KERNEL
61 select SYS_SUPPORTS_APM_EMULATION
63 select ARCH_WANT_OPTIONAL_GPIOLIB
64 select SYS_SUPPORTS_ZBOOT
65 select USB_ARCH_HAS_OHCI
66 select USB_ARCH_HAS_EHCI
69 bool "Texas Instruments AR7"
71 select DMA_NONCOHERENT
77 select SYS_HAS_CPU_MIPS32_R1
78 select SYS_HAS_EARLY_PRINTK
79 select SYS_SUPPORTS_32BIT_KERNEL
80 select SYS_SUPPORTS_LITTLE_ENDIAN
81 select SYS_SUPPORTS_ZBOOT_UART16550
82 select ARCH_REQUIRE_GPIOLIB
86 Support for the Texas Instruments AR7 System-on-a-Chip
87 family: TNETD7100, 7200 and 7300.
90 bool "Atheros AR71XX/AR724X/AR913X based boards"
91 select ARCH_REQUIRE_GPIOLIB
95 select DMA_NONCOHERENT
99 select SYS_HAS_CPU_MIPS32_R2
100 select SYS_HAS_EARLY_PRINTK
101 select SYS_SUPPORTS_32BIT_KERNEL
102 select SYS_SUPPORTS_BIG_ENDIAN
104 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
107 bool "Broadcom BCM47XX based boards"
108 select ARCH_WANT_OPTIONAL_GPIOLIB
112 select DMA_NONCOHERENT
116 select NO_EXCEPT_FILL
117 select SYS_SUPPORTS_32BIT_KERNEL
118 select SYS_SUPPORTS_LITTLE_ENDIAN
119 select SYS_HAS_EARLY_PRINTK
121 Support for BCM47XX based boards
124 bool "Broadcom BCM63XX based boards"
127 select DMA_NONCOHERENT
129 select SYS_HAS_CPU_MIPS32_R1
130 select SYS_SUPPORTS_32BIT_KERNEL
131 select SYS_SUPPORTS_BIG_ENDIAN
132 select SYS_HAS_EARLY_PRINTK
134 select ARCH_REQUIRE_GPIOLIB
137 Support for BCM63XX based boards
144 select DMA_NONCOHERENT
150 select PCI_GT64XXX_PCI0
152 select SYS_HAS_CPU_NEVADA
153 select SYS_HAS_EARLY_PRINTK
154 select SYS_SUPPORTS_32BIT_KERNEL
155 select SYS_SUPPORTS_64BIT_KERNEL
156 select SYS_SUPPORTS_LITTLE_ENDIAN
158 config MACH_DECSTATION
165 select CPU_DADDI_WORKAROUNDS if 64BIT
166 select CPU_R4000_WORKAROUNDS if 64BIT
167 select CPU_R4400_WORKAROUNDS if 64BIT
168 select DMA_NONCOHERENT
171 select SYS_HAS_CPU_R3000
172 select SYS_HAS_CPU_R4X00
173 select SYS_SUPPORTS_32BIT_KERNEL
174 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
175 select SYS_SUPPORTS_LITTLE_ENDIAN
176 select SYS_SUPPORTS_128HZ
177 select SYS_SUPPORTS_256HZ
178 select SYS_SUPPORTS_1024HZ
180 This enables support for DEC's MIPS based workstations. For details
181 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
182 DECstation porting pages on <http://decstation.unix-ag.org/>.
184 If you have one of the following DECstation Models you definitely
185 want to choose R4xx0 for the CPU Type:
192 otherwise choose R3000.
195 bool "Jazz family of machines"
198 select ARCH_MAY_HAVE_PC_FDC
201 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
202 select GENERIC_ISA_DMA
203 select HAVE_PCSPKR_PLATFORM
208 select SYS_HAS_CPU_R4X00
209 select SYS_SUPPORTS_32BIT_KERNEL
210 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
211 select SYS_SUPPORTS_100HZ
213 This a family of machines based on the MIPS R4030 chipset which was
214 used by several vendors to build RISC/os and Windows NT workstations.
215 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
216 Olivetti M700-10 workstations.
219 bool "Ingenic JZ4740 based machines"
220 select SYS_HAS_CPU_MIPS32_R1
221 select SYS_SUPPORTS_32BIT_KERNEL
222 select SYS_SUPPORTS_LITTLE_ENDIAN
223 select SYS_SUPPORTS_ZBOOT_UART16550
224 select DMA_NONCOHERENT
227 select ARCH_REQUIRE_GPIOLIB
228 select SYS_HAS_EARLY_PRINTK
231 select GENERIC_IRQ_CHIP
234 bool "Lantiq based platforms"
235 select DMA_NONCOHERENT
239 select SYS_HAS_CPU_MIPS32_R1
240 select SYS_HAS_CPU_MIPS32_R2
241 select SYS_SUPPORTS_BIG_ENDIAN
242 select SYS_SUPPORTS_32BIT_KERNEL
243 select SYS_SUPPORTS_MULTITHREADING
244 select SYS_HAS_EARLY_PRINTK
245 select ARCH_REQUIRE_GPIOLIB
248 select HAVE_MACH_CLKDEV
252 select PINCTRL_LANTIQ
255 bool "LASAT Networks platforms"
258 select DMA_NONCOHERENT
259 select SYS_HAS_EARLY_PRINTK
262 select PCI_GT64XXX_PCI0
264 select R5000_CPU_SCACHE
265 select SYS_HAS_CPU_R5000
266 select SYS_SUPPORTS_32BIT_KERNEL
267 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
268 select SYS_SUPPORTS_LITTLE_ENDIAN
271 bool "Loongson family of machines"
272 select SYS_SUPPORTS_ZBOOT
274 This enables the support of Loongson family of machines.
276 Loongson is a family of general-purpose MIPS-compatible CPUs.
277 developed at Institute of Computing Technology (ICT),
278 Chinese Academy of Sciences (CAS) in the People's Republic
279 of China. The chief architect is Professor Weiwu Hu.
281 config MACH_LOONGSON1
282 bool "Loongson 1 family of machines"
283 select SYS_SUPPORTS_ZBOOT
285 This enables support for the Loongson 1 based machines.
287 Loongson 1 is a family of 32-bit MIPS-compatible SoCs developed by
288 the ICT (Institute of Computing Technology) and the Chinese Academy
292 bool "MIPS Malta board"
293 select ARCH_MAY_HAVE_PC_FDC
299 select DMA_NONCOHERENT
300 select GENERIC_ISA_DMA
301 select HAVE_PCSPKR_PLATFORM
307 select MIPS_BOARDS_GEN
309 select MIPS_CPU_SCACHE
310 select PCI_GT64XXX_PCI0
313 select SYS_HAS_CPU_MIPS32_R1
314 select SYS_HAS_CPU_MIPS32_R2
315 select SYS_HAS_CPU_MIPS64_R1
316 select SYS_HAS_CPU_MIPS64_R2
317 select SYS_HAS_CPU_NEVADA
318 select SYS_HAS_CPU_RM7000
319 select SYS_HAS_EARLY_PRINTK
320 select SYS_SUPPORTS_32BIT_KERNEL
321 select SYS_SUPPORTS_64BIT_KERNEL
322 select SYS_SUPPORTS_BIG_ENDIAN
323 select SYS_SUPPORTS_LITTLE_ENDIAN
324 select SYS_SUPPORTS_MIPS_CMP
325 select SYS_SUPPORTS_MULTITHREADING
326 select SYS_SUPPORTS_SMARTMIPS
327 select SYS_SUPPORTS_ZBOOT
329 This enables support for the MIPS Technologies Malta evaluation
333 bool "MIPS SEAD3 board"
338 select CPU_MIPSR2_IRQ_VI
339 select CPU_MIPSR2_IRQ_EI
340 select DMA_NONCOHERENT
343 select MIPS_BOARDS_GEN
344 select MIPS_CPU_SCACHE
346 select SYS_HAS_CPU_MIPS32_R1
347 select SYS_HAS_CPU_MIPS32_R2
348 select SYS_HAS_CPU_MIPS64_R1
349 select SYS_HAS_EARLY_PRINTK
350 select SYS_SUPPORTS_32BIT_KERNEL
351 select SYS_SUPPORTS_64BIT_KERNEL
352 select SYS_SUPPORTS_BIG_ENDIAN
353 select SYS_SUPPORTS_LITTLE_ENDIAN
354 select SYS_SUPPORTS_SMARTMIPS
355 select USB_ARCH_HAS_EHCI
356 select USB_EHCI_BIG_ENDIAN_DESC
357 select USB_EHCI_BIG_ENDIAN_MMIO
360 This enables support for the MIPS Technologies SEAD3 evaluation
364 bool "NEC EMMA2RH Mark-eins board"
368 This enables support for the NEC Electronics Mark-eins boards.
371 bool "NEC VR4100 series based machines"
374 select SYS_HAS_CPU_VR41XX
375 select ARCH_REQUIRE_GPIOLIB
378 bool "NXP STB220 board"
381 Support for NXP Semiconductors STB220 Development Board.
388 Support for NXP Semiconductors STB225 Development Board.
391 bool "PMC-Sierra MSP chipsets"
392 depends on EXPERIMENTAL
395 select DMA_NONCOHERENT
397 select NO_EXCEPT_FILL
399 select SYS_HAS_CPU_MIPS32_R1
400 select SYS_HAS_CPU_MIPS32_R2
401 select SYS_SUPPORTS_32BIT_KERNEL
402 select SYS_SUPPORTS_BIG_ENDIAN
405 select SERIAL_8250_CONSOLE
407 This adds support for the PMC-Sierra family of Multi-Service
408 Processor System-On-A-Chips. These parts include a number
409 of integrated peripherals, interfaces and DSPs in addition to
410 a variety of MIPS cores.
416 select CPU_MIPSR2_IRQ_VI
417 select CPU_MIPSR2_IRQ_EI
419 select DMA_NONCOHERENT
421 select SYS_HAS_EARLY_PRINTK
422 select SYS_HAS_CPU_MIPS32_R2
423 select SYS_SUPPORTS_32BIT_KERNEL
424 select SYS_SUPPORTS_BIG_ENDIAN
425 select SYS_SUPPORTS_HIGHMEM
426 select USB_OHCI_LITTLE_ENDIAN
428 This enables support for the Cisco PowerTV Platform.
431 bool "Ralink based machines"
435 select DMA_NONCOHERENT
438 select SYS_HAS_CPU_MIPS32_R1
439 select SYS_HAS_CPU_MIPS32_R2
440 select SYS_SUPPORTS_32BIT_KERNEL
441 select SYS_SUPPORTS_LITTLE_ENDIAN
442 select SYS_HAS_EARLY_PRINTK
443 select HAVE_MACH_CLKDEV
447 bool "SGI IP22 (Indy/Indigo2)"
453 select DEFAULT_SGI_PARTITION
454 select DMA_NONCOHERENT
458 select IP22_CPU_SCACHE
460 select GENERIC_ISA_DMA_SUPPORT_BROKEN
462 select SGI_HAS_INDYDOG
468 select SYS_HAS_CPU_R4X00
469 select SYS_HAS_CPU_R5000
471 # Disable EARLY_PRINTK for now since it leads to overwritten prom
472 # memory during early boot on some machines.
474 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
475 # for a more details discussion
477 # select SYS_HAS_EARLY_PRINTK
478 select SYS_SUPPORTS_32BIT_KERNEL
479 select SYS_SUPPORTS_64BIT_KERNEL
480 select SYS_SUPPORTS_BIG_ENDIAN
482 This are the SGI Indy, Challenge S and Indigo2, as well as certain
483 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
484 that runs on these, say Y here.
487 bool "SGI IP27 (Origin200/2000)"
491 select DEFAULT_SGI_PARTITION
493 select SYS_HAS_EARLY_PRINTK
495 select NR_CPUS_DEFAULT_64
496 select SYS_HAS_CPU_R10000
497 select SYS_SUPPORTS_64BIT_KERNEL
498 select SYS_SUPPORTS_BIG_ENDIAN
499 select SYS_SUPPORTS_NUMA
500 select SYS_SUPPORTS_SMP
502 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
503 workstations. To compile a Linux kernel that runs on these, say Y
507 bool "SGI IP28 (Indigo2 R10k) (EXPERIMENTAL)"
508 depends on EXPERIMENTAL
514 select DEFAULT_SGI_PARTITION
515 select DMA_NONCOHERENT
516 select GENERIC_ISA_DMA_SUPPORT_BROKEN
522 select SGI_HAS_INDYDOG
528 select SYS_HAS_CPU_R10000
530 # Disable EARLY_PRINTK for now since it leads to overwritten prom
531 # memory during early boot on some machines.
533 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
534 # for a more details discussion
536 # select SYS_HAS_EARLY_PRINTK
537 select SYS_SUPPORTS_64BIT_KERNEL
538 select SYS_SUPPORTS_BIG_ENDIAN
540 This is the SGI Indigo2 with R10000 processor. To compile a Linux
541 kernel that runs on these, say Y here.
550 select DMA_NONCOHERENT
553 select R5000_CPU_SCACHE
554 select RM7000_CPU_SCACHE
555 select SYS_HAS_CPU_R5000
556 select SYS_HAS_CPU_R10000 if BROKEN
557 select SYS_HAS_CPU_RM7000
558 select SYS_HAS_CPU_NEVADA
559 select SYS_SUPPORTS_64BIT_KERNEL
560 select SYS_SUPPORTS_BIG_ENDIAN
562 If you want this kernel to run on SGI O2 workstation, say Y here.
565 bool "Sibyte BCM91120C-CRhine"
566 depends on EXPERIMENTAL
569 select SIBYTE_BCM1120
571 select SYS_HAS_CPU_SB1
572 select SYS_SUPPORTS_BIG_ENDIAN
573 select SYS_SUPPORTS_LITTLE_ENDIAN
576 bool "Sibyte BCM91120x-Carmel"
577 depends on EXPERIMENTAL
580 select SIBYTE_BCM1120
582 select SYS_HAS_CPU_SB1
583 select SYS_SUPPORTS_BIG_ENDIAN
584 select SYS_SUPPORTS_LITTLE_ENDIAN
587 bool "Sibyte BCM91125C-CRhone"
588 depends on EXPERIMENTAL
591 select SIBYTE_BCM1125
593 select SYS_HAS_CPU_SB1
594 select SYS_SUPPORTS_BIG_ENDIAN
595 select SYS_SUPPORTS_HIGHMEM
596 select SYS_SUPPORTS_LITTLE_ENDIAN
599 bool "Sibyte BCM91125E-Rhone"
600 depends on EXPERIMENTAL
603 select SIBYTE_BCM1125H
605 select SYS_HAS_CPU_SB1
606 select SYS_SUPPORTS_BIG_ENDIAN
607 select SYS_SUPPORTS_LITTLE_ENDIAN
610 bool "Sibyte BCM91250A-SWARM"
613 select HAVE_PATA_PLATFORM
614 select NR_CPUS_DEFAULT_2
617 select SYS_HAS_CPU_SB1
618 select SYS_SUPPORTS_BIG_ENDIAN
619 select SYS_SUPPORTS_HIGHMEM
620 select SYS_SUPPORTS_LITTLE_ENDIAN
621 select ZONE_DMA32 if 64BIT
623 config SIBYTE_LITTLESUR
624 bool "Sibyte BCM91250C2-LittleSur"
625 depends on EXPERIMENTAL
628 select HAVE_PATA_PLATFORM
629 select NR_CPUS_DEFAULT_2
632 select SYS_HAS_CPU_SB1
633 select SYS_SUPPORTS_BIG_ENDIAN
634 select SYS_SUPPORTS_HIGHMEM
635 select SYS_SUPPORTS_LITTLE_ENDIAN
637 config SIBYTE_SENTOSA
638 bool "Sibyte BCM91250E-Sentosa"
639 depends on EXPERIMENTAL
642 select NR_CPUS_DEFAULT_2
645 select SYS_HAS_CPU_SB1
646 select SYS_SUPPORTS_BIG_ENDIAN
647 select SYS_SUPPORTS_LITTLE_ENDIAN
650 bool "Sibyte BCM91480B-BigSur"
653 select NR_CPUS_DEFAULT_4
654 select SIBYTE_BCM1x80
656 select SYS_HAS_CPU_SB1
657 select SYS_SUPPORTS_BIG_ENDIAN
658 select SYS_SUPPORTS_HIGHMEM
659 select SYS_SUPPORTS_LITTLE_ENDIAN
660 select ZONE_DMA32 if 64BIT
663 bool "SNI RM200/300/400"
664 select FW_ARC if CPU_LITTLE_ENDIAN
665 select FW_ARC32 if CPU_LITTLE_ENDIAN
666 select SNIPROM if CPU_BIG_ENDIAN
667 select ARCH_MAY_HAVE_PC_FDC
671 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
672 select DMA_NONCOHERENT
673 select GENERIC_ISA_DMA
674 select HAVE_PCSPKR_PLATFORM
681 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
682 select SYS_HAS_CPU_R4X00
683 select SYS_HAS_CPU_R5000
684 select SYS_HAS_CPU_R10000
685 select R5000_CPU_SCACHE
686 select SYS_HAS_EARLY_PRINTK
687 select SYS_SUPPORTS_32BIT_KERNEL
688 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
689 select SYS_SUPPORTS_BIG_ENDIAN
690 select SYS_SUPPORTS_HIGHMEM
691 select SYS_SUPPORTS_LITTLE_ENDIAN
693 The SNI RM200/300/400 are MIPS-based machines manufactured by
694 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
695 Technology and now in turn merged with Fujitsu. Say Y here to
696 support this machine type.
699 bool "Toshiba TX39 series based machines"
702 bool "Toshiba TX49 series based machines"
704 config MIKROTIK_RB532
705 bool "Mikrotik RB532 boards"
708 select DMA_NONCOHERENT
711 select SYS_HAS_CPU_MIPS32_R1
712 select SYS_SUPPORTS_32BIT_KERNEL
713 select SYS_SUPPORTS_LITTLE_ENDIAN
716 select ARCH_REQUIRE_GPIOLIB
718 Support the Mikrotik(tm) RouterBoard 532 series,
719 based on the IDT RC32434 SoC.
722 bool "Wind River PPMC board"
727 select DMA_NONCOHERENT
729 select PCI_GT64XXX_PCI0
731 select SYS_HAS_CPU_MIPS32_R1
732 select SYS_HAS_CPU_MIPS32_R2
733 select SYS_HAS_CPU_MIPS64_R1
734 select SYS_HAS_CPU_NEVADA
735 select SYS_HAS_CPU_RM7000
736 select SYS_SUPPORTS_32BIT_KERNEL
737 select SYS_SUPPORTS_64BIT_KERNEL
738 select SYS_SUPPORTS_BIG_ENDIAN
739 select SYS_SUPPORTS_LITTLE_ENDIAN
741 This enables support for the Wind River MIPS32 4KC PPMC evaluation
742 board, which is based on GT64120 bridge chip.
744 config CAVIUM_OCTEON_SIMULATOR
745 bool "Cavium Networks Octeon Simulator"
747 select 64BIT_PHYS_ADDR
749 select SYS_SUPPORTS_64BIT_KERNEL
750 select SYS_SUPPORTS_BIG_ENDIAN
751 select SYS_SUPPORTS_HOTPLUG_CPU
752 select SYS_HAS_CPU_CAVIUM_OCTEON
755 The Octeon simulator is software performance model of the Cavium
756 Octeon Processor. It supports simulating Octeon processors on x86
759 config CAVIUM_OCTEON_REFERENCE_BOARD
760 bool "Cavium Networks Octeon reference board"
762 select 64BIT_PHYS_ADDR
764 select SYS_SUPPORTS_64BIT_KERNEL
765 select SYS_SUPPORTS_BIG_ENDIAN
767 select SYS_SUPPORTS_HOTPLUG_CPU
768 select SYS_HAS_EARLY_PRINTK
769 select SYS_HAS_CPU_CAVIUM_OCTEON
772 select ARCH_SUPPORTS_MSI
774 select USB_ARCH_HAS_OHCI
775 select USB_ARCH_HAS_EHCI
778 This option supports all of the Octeon reference boards from Cavium
779 Networks. It builds a kernel that dynamically determines the Octeon
780 CPU type and supports all known board reference implementations.
781 Some of the supported boards are:
788 Say Y here for most Octeon reference boards.
791 bool "Netlogic XLR/XLS based systems"
792 depends on EXPERIMENTAL
795 select SYS_HAS_CPU_XLR
796 select SYS_SUPPORTS_SMP
799 select SYS_SUPPORTS_32BIT_KERNEL
800 select SYS_SUPPORTS_64BIT_KERNEL
801 select 64BIT_PHYS_ADDR
802 select SYS_SUPPORTS_BIG_ENDIAN
803 select SYS_SUPPORTS_HIGHMEM
805 select NR_CPUS_DEFAULT_32
809 select ARCH_SUPPORTS_MSI
810 select ZONE_DMA32 if 64BIT
812 select SYS_HAS_EARLY_PRINTK
813 select USB_ARCH_HAS_OHCI if USB_SUPPORT
814 select USB_ARCH_HAS_EHCI if USB_SUPPORT
816 Support for systems based on Netlogic XLR and XLS processors.
817 Say Y here if you have a XLR or XLS based board.
820 bool "Netlogic XLP based systems"
821 depends on EXPERIMENTAL
824 select SYS_HAS_CPU_XLP
825 select SYS_SUPPORTS_SMP
827 select SYS_SUPPORTS_32BIT_KERNEL
828 select SYS_SUPPORTS_64BIT_KERNEL
829 select 64BIT_PHYS_ADDR
830 select SYS_SUPPORTS_BIG_ENDIAN
831 select SYS_SUPPORTS_LITTLE_ENDIAN
832 select SYS_SUPPORTS_HIGHMEM
834 select NR_CPUS_DEFAULT_32
838 select ZONE_DMA32 if 64BIT
840 select SYS_HAS_EARLY_PRINTK
843 This board is based on Netlogic XLP Processor.
844 Say Y here if you have a XLP based board.
848 source "arch/mips/alchemy/Kconfig"
849 source "arch/mips/ath79/Kconfig"
850 source "arch/mips/bcm47xx/Kconfig"
851 source "arch/mips/bcm63xx/Kconfig"
852 source "arch/mips/jazz/Kconfig"
853 source "arch/mips/jz4740/Kconfig"
854 source "arch/mips/lantiq/Kconfig"
855 source "arch/mips/lasat/Kconfig"
856 source "arch/mips/pmcs-msp71xx/Kconfig"
857 source "arch/mips/powertv/Kconfig"
858 source "arch/mips/ralink/Kconfig"
859 source "arch/mips/sgi-ip27/Kconfig"
860 source "arch/mips/sibyte/Kconfig"
861 source "arch/mips/txx9/Kconfig"
862 source "arch/mips/vr41xx/Kconfig"
863 source "arch/mips/cavium-octeon/Kconfig"
864 source "arch/mips/loongson/Kconfig"
865 source "arch/mips/loongson1/Kconfig"
866 source "arch/mips/netlogic/Kconfig"
870 config RWSEM_GENERIC_SPINLOCK
874 config RWSEM_XCHGADD_ALGORITHM
877 config ARCH_HAS_ILOG2_U32
881 config ARCH_HAS_ILOG2_U64
885 config GENERIC_HWEIGHT
889 config GENERIC_CALIBRATE_DELAY
893 config SCHED_OMIT_FRAME_POINTER
898 # Select some configuration options automatically based on user selections.
903 config ARCH_MAY_HAVE_PC_FDC
947 select ARCH_REQUIRE_GPIOLIB
953 config ARCH_DMA_ADDR_T_64BIT
954 def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT
959 config DMA_NONCOHERENT
961 select NEED_DMA_MAP_STATE
963 config NEED_DMA_MAP_STATE
966 config SYS_HAS_EARLY_PRINTK
970 bool "Support for hot-pluggable CPUs"
971 depends on SMP && HOTPLUG && SYS_SUPPORTS_HOTPLUG_CPU
973 Say Y here to allow turning CPUs off and on. CPUs can be
974 controlled through /sys/devices/system/cpu.
975 (Note: power management support will enable this option
976 automatically on SMP systems. )
977 Say N if you want to disable CPU hotplug.
979 config SYS_SUPPORTS_HOTPLUG_CPU
994 config MIPS_DISABLE_OBSOLETE_IDE
1006 config GENERIC_ISA_DMA
1008 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1011 config GENERIC_ISA_DMA_SUPPORT_BROKEN
1013 select GENERIC_ISA_DMA
1021 config HOLES_IN_ZONE
1025 # Endianness selection. Sufficiently obscure so many users don't know what to
1026 # answer,so we try hard to limit the available choices. Also the use of a
1027 # choice statement should be more obvious to the user.
1030 prompt "Endianness selection"
1032 Some MIPS machines can be configured for either little or big endian
1033 byte order. These modes require different kernels and a different
1034 Linux distribution. In general there is one preferred byteorder for a
1035 particular system but some systems are just as commonly used in the
1036 one or the other endianness.
1038 config CPU_BIG_ENDIAN
1040 depends on SYS_SUPPORTS_BIG_ENDIAN
1042 config CPU_LITTLE_ENDIAN
1043 bool "Little endian"
1044 depends on SYS_SUPPORTS_LITTLE_ENDIAN
1052 config SYS_SUPPORTS_APM_EMULATION
1055 config SYS_SUPPORTS_BIG_ENDIAN
1058 config SYS_SUPPORTS_LITTLE_ENDIAN
1061 config SYS_SUPPORTS_HUGETLBFS
1063 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1066 config MIPS_HUGE_TLB_SUPPORT
1067 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1090 config MIPS_BOARDS_GEN
1093 config PCI_GT64XXX_PCI0
1096 config NO_EXCEPT_FILL
1103 select DMA_NONCOHERENT
1105 select SWAP_IO_SPACE
1106 select SYS_HAS_CPU_R5500
1107 select SYS_SUPPORTS_32BIT_KERNEL
1108 select SYS_SUPPORTS_64BIT_KERNEL
1109 select SYS_SUPPORTS_BIG_ENDIAN
1116 select DMA_NONCOHERENT
1117 select SYS_HAS_CPU_MIPS32_R2
1118 select SYS_SUPPORTS_32BIT_KERNEL
1119 select SYS_SUPPORTS_LITTLE_ENDIAN
1120 select SYS_SUPPORTS_BIG_ENDIAN
1122 select CPU_MIPSR2_IRQ_VI
1128 config SWAP_IO_SPACE
1131 config SGI_HAS_INDYDOG
1143 config SGI_HAS_ZILOG
1146 config SGI_HAS_I8042
1149 config DEFAULT_SGI_PARTITION
1161 config MIPS_L1_CACHE_SHIFT
1163 default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL
1164 default "6" if MIPS_CPU_SCACHE
1165 default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON
1168 config HAVE_STD_PC_SERIAL_PORT
1172 bool "ARC console support"
1173 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1177 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1182 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1191 menu "CPU selection"
1197 config CPU_LOONGSON2E
1199 depends on SYS_HAS_CPU_LOONGSON2E
1200 select CPU_LOONGSON2
1202 The Loongson 2E processor implements the MIPS III instruction set
1203 with many extensions.
1205 It has an internal FPGA northbridge, which is compatible to
1208 config CPU_LOONGSON2F
1210 depends on SYS_HAS_CPU_LOONGSON2F
1211 select CPU_LOONGSON2
1213 select ARCH_REQUIRE_GPIOLIB
1215 The Loongson 2F processor implements the MIPS III instruction set
1216 with many extensions.
1218 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1219 have a similar programming interface with FPGA northbridge used in
1222 config CPU_LOONGSON1B
1224 depends on SYS_HAS_CPU_LOONGSON1B
1225 select CPU_LOONGSON1
1227 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1228 release 2 instruction set.
1230 config CPU_MIPS32_R1
1231 bool "MIPS32 Release 1"
1232 depends on SYS_HAS_CPU_MIPS32_R1
1233 select CPU_HAS_PREFETCH
1234 select CPU_SUPPORTS_32BIT_KERNEL
1235 select CPU_SUPPORTS_HIGHMEM
1237 Choose this option to build a kernel for release 1 or later of the
1238 MIPS32 architecture. Most modern embedded systems with a 32-bit
1239 MIPS processor are based on a MIPS32 processor. If you know the
1240 specific type of processor in your system, choose those that one
1241 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1242 Release 2 of the MIPS32 architecture is available since several
1243 years so chances are you even have a MIPS32 Release 2 processor
1244 in which case you should choose CPU_MIPS32_R2 instead for better
1247 config CPU_MIPS32_R2
1248 bool "MIPS32 Release 2"
1249 depends on SYS_HAS_CPU_MIPS32_R2
1250 select CPU_HAS_PREFETCH
1251 select CPU_SUPPORTS_32BIT_KERNEL
1252 select CPU_SUPPORTS_HIGHMEM
1254 Choose this option to build a kernel for release 2 or later of the
1255 MIPS32 architecture. Most modern embedded systems with a 32-bit
1256 MIPS processor are based on a MIPS32 processor. If you know the
1257 specific type of processor in your system, choose those that one
1258 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1260 config CPU_MIPS64_R1
1261 bool "MIPS64 Release 1"
1262 depends on SYS_HAS_CPU_MIPS64_R1
1263 select CPU_HAS_PREFETCH
1264 select CPU_SUPPORTS_32BIT_KERNEL
1265 select CPU_SUPPORTS_64BIT_KERNEL
1266 select CPU_SUPPORTS_HIGHMEM
1267 select CPU_SUPPORTS_HUGEPAGES
1269 Choose this option to build a kernel for release 1 or later of the
1270 MIPS64 architecture. Many modern embedded systems with a 64-bit
1271 MIPS processor are based on a MIPS64 processor. If you know the
1272 specific type of processor in your system, choose those that one
1273 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1274 Release 2 of the MIPS64 architecture is available since several
1275 years so chances are you even have a MIPS64 Release 2 processor
1276 in which case you should choose CPU_MIPS64_R2 instead for better
1279 config CPU_MIPS64_R2
1280 bool "MIPS64 Release 2"
1281 depends on SYS_HAS_CPU_MIPS64_R2
1282 select CPU_HAS_PREFETCH
1283 select CPU_SUPPORTS_32BIT_KERNEL
1284 select CPU_SUPPORTS_64BIT_KERNEL
1285 select CPU_SUPPORTS_HIGHMEM
1286 select CPU_SUPPORTS_HUGEPAGES
1288 Choose this option to build a kernel for release 2 or later of the
1289 MIPS64 architecture. Many modern embedded systems with a 64-bit
1290 MIPS processor are based on a MIPS64 processor. If you know the
1291 specific type of processor in your system, choose those that one
1292 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1296 depends on SYS_HAS_CPU_R3000
1298 select CPU_SUPPORTS_32BIT_KERNEL
1299 select CPU_SUPPORTS_HIGHMEM
1301 Please make sure to pick the right CPU type. Linux/MIPS is not
1302 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1303 *not* work on R4000 machines and vice versa. However, since most
1304 of the supported machines have an R4000 (or similar) CPU, R4x00
1305 might be a safe bet. If the resulting kernel does not work,
1306 try to recompile with R3000.
1310 depends on SYS_HAS_CPU_TX39XX
1311 select CPU_SUPPORTS_32BIT_KERNEL
1315 depends on SYS_HAS_CPU_VR41XX
1316 select CPU_SUPPORTS_32BIT_KERNEL
1317 select CPU_SUPPORTS_64BIT_KERNEL
1319 The options selects support for the NEC VR4100 series of processors.
1320 Only choose this option if you have one of these processors as a
1321 kernel built with this option will not run on any other type of
1322 processor or vice versa.
1326 depends on SYS_HAS_CPU_R4300
1327 select CPU_SUPPORTS_32BIT_KERNEL
1328 select CPU_SUPPORTS_64BIT_KERNEL
1330 MIPS Technologies R4300-series processors.
1334 depends on SYS_HAS_CPU_R4X00
1335 select CPU_SUPPORTS_32BIT_KERNEL
1336 select CPU_SUPPORTS_64BIT_KERNEL
1337 select CPU_SUPPORTS_HUGEPAGES
1339 MIPS Technologies R4000-series processors other than 4300, including
1340 the R4000, R4400, R4600, and 4700.
1344 depends on SYS_HAS_CPU_TX49XX
1345 select CPU_HAS_PREFETCH
1346 select CPU_SUPPORTS_32BIT_KERNEL
1347 select CPU_SUPPORTS_64BIT_KERNEL
1348 select CPU_SUPPORTS_HUGEPAGES
1352 depends on SYS_HAS_CPU_R5000
1353 select CPU_SUPPORTS_32BIT_KERNEL
1354 select CPU_SUPPORTS_64BIT_KERNEL
1355 select CPU_SUPPORTS_HUGEPAGES
1357 MIPS Technologies R5000-series processors other than the Nevada.
1361 depends on SYS_HAS_CPU_R5432
1362 select CPU_SUPPORTS_32BIT_KERNEL
1363 select CPU_SUPPORTS_64BIT_KERNEL
1364 select CPU_SUPPORTS_HUGEPAGES
1368 depends on SYS_HAS_CPU_R5500
1369 select CPU_SUPPORTS_32BIT_KERNEL
1370 select CPU_SUPPORTS_64BIT_KERNEL
1371 select CPU_SUPPORTS_HUGEPAGES
1373 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1378 depends on EXPERIMENTAL
1379 depends on SYS_HAS_CPU_R6000
1380 select CPU_SUPPORTS_32BIT_KERNEL
1382 MIPS Technologies R6000 and R6000A series processors. Note these
1383 processors are extremely rare and the support for them is incomplete.
1387 depends on SYS_HAS_CPU_NEVADA
1388 select CPU_SUPPORTS_32BIT_KERNEL
1389 select CPU_SUPPORTS_64BIT_KERNEL
1390 select CPU_SUPPORTS_HUGEPAGES
1392 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1396 depends on EXPERIMENTAL
1397 depends on SYS_HAS_CPU_R8000
1398 select CPU_HAS_PREFETCH
1399 select CPU_SUPPORTS_64BIT_KERNEL
1401 MIPS Technologies R8000 processors. Note these processors are
1402 uncommon and the support for them is incomplete.
1406 depends on SYS_HAS_CPU_R10000
1407 select CPU_HAS_PREFETCH
1408 select CPU_SUPPORTS_32BIT_KERNEL
1409 select CPU_SUPPORTS_64BIT_KERNEL
1410 select CPU_SUPPORTS_HIGHMEM
1411 select CPU_SUPPORTS_HUGEPAGES
1413 MIPS Technologies R10000-series processors.
1417 depends on SYS_HAS_CPU_RM7000
1418 select CPU_HAS_PREFETCH
1419 select CPU_SUPPORTS_32BIT_KERNEL
1420 select CPU_SUPPORTS_64BIT_KERNEL
1421 select CPU_SUPPORTS_HIGHMEM
1422 select CPU_SUPPORTS_HUGEPAGES
1426 depends on SYS_HAS_CPU_SB1
1427 select CPU_SUPPORTS_32BIT_KERNEL
1428 select CPU_SUPPORTS_64BIT_KERNEL
1429 select CPU_SUPPORTS_HIGHMEM
1430 select CPU_SUPPORTS_HUGEPAGES
1431 select WEAK_ORDERING
1433 config CPU_CAVIUM_OCTEON
1434 bool "Cavium Octeon processor"
1435 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1436 select ARCH_SPARSEMEM_ENABLE
1437 select CPU_HAS_PREFETCH
1438 select CPU_SUPPORTS_64BIT_KERNEL
1439 select SYS_SUPPORTS_SMP
1440 select NR_CPUS_DEFAULT_16
1441 select WEAK_ORDERING
1442 select CPU_SUPPORTS_HIGHMEM
1443 select CPU_SUPPORTS_HUGEPAGES
1447 The Cavium Octeon processor is a highly integrated chip containing
1448 many ethernet hardware widgets for networking tasks. The processor
1449 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1450 Full details can be found at http://www.caviumnetworks.com.
1452 config CPU_BMIPS3300
1454 depends on SYS_HAS_CPU_BMIPS3300
1457 Broadcom BMIPS3300 processors.
1459 config CPU_BMIPS4350
1461 depends on SYS_HAS_CPU_BMIPS4350
1463 select SYS_SUPPORTS_SMP
1464 select SYS_SUPPORTS_HOTPLUG_CPU
1466 Broadcom BMIPS4350 ("VIPER") processors.
1468 config CPU_BMIPS4380
1470 depends on SYS_HAS_CPU_BMIPS4380
1472 select SYS_SUPPORTS_SMP
1473 select SYS_SUPPORTS_HOTPLUG_CPU
1475 Broadcom BMIPS4380 processors.
1477 config CPU_BMIPS5000
1479 depends on SYS_HAS_CPU_BMIPS5000
1481 select CPU_SUPPORTS_HIGHMEM
1482 select MIPS_CPU_SCACHE
1483 select SYS_SUPPORTS_SMP
1484 select SYS_SUPPORTS_HOTPLUG_CPU
1486 Broadcom BMIPS5000 processors.
1489 bool "Netlogic XLR SoC"
1490 depends on SYS_HAS_CPU_XLR
1491 select CPU_SUPPORTS_32BIT_KERNEL
1492 select CPU_SUPPORTS_64BIT_KERNEL
1493 select CPU_SUPPORTS_HIGHMEM
1494 select CPU_SUPPORTS_HUGEPAGES
1495 select WEAK_ORDERING
1496 select WEAK_REORDERING_BEYOND_LLSC
1498 Netlogic Microsystems XLR/XLS processors.
1501 bool "Netlogic XLP SoC"
1502 depends on SYS_HAS_CPU_XLP
1503 select CPU_SUPPORTS_32BIT_KERNEL
1504 select CPU_SUPPORTS_64BIT_KERNEL
1505 select CPU_SUPPORTS_HIGHMEM
1507 select WEAK_ORDERING
1508 select WEAK_REORDERING_BEYOND_LLSC
1509 select CPU_HAS_PREFETCH
1512 Netlogic Microsystems XLP processors.
1516 config CPU_NOP_WORKAROUNDS
1519 config CPU_JUMP_WORKAROUNDS
1522 config CPU_LOONGSON2F_WORKAROUNDS
1523 bool "Loongson 2F Workarounds"
1525 select CPU_NOP_WORKAROUNDS
1526 select CPU_JUMP_WORKAROUNDS
1528 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1529 require workarounds. Without workarounds the system may hang
1530 unexpectedly. For more information please refer to the gas
1531 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1533 Loongson 2F03 and later have fixed these issues and no workarounds
1534 are needed. The workarounds have no significant side effect on them
1535 but may decrease the performance of the system so this option should
1536 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1539 If unsure, please say Y.
1540 endif # CPU_LOONGSON2F
1542 config SYS_SUPPORTS_ZBOOT
1544 select HAVE_KERNEL_GZIP
1545 select HAVE_KERNEL_BZIP2
1546 select HAVE_KERNEL_LZMA
1547 select HAVE_KERNEL_LZO
1549 config SYS_SUPPORTS_ZBOOT_UART16550
1551 select SYS_SUPPORTS_ZBOOT
1553 config CPU_LOONGSON2
1555 select CPU_SUPPORTS_32BIT_KERNEL
1556 select CPU_SUPPORTS_64BIT_KERNEL
1557 select CPU_SUPPORTS_HIGHMEM
1558 select CPU_SUPPORTS_HUGEPAGES
1560 config CPU_LOONGSON1
1564 select CPU_HAS_PREFETCH
1565 select CPU_SUPPORTS_32BIT_KERNEL
1566 select CPU_SUPPORTS_HIGHMEM
1571 select CPU_SUPPORTS_32BIT_KERNEL
1572 select DMA_NONCOHERENT
1574 select SWAP_IO_SPACE
1575 select WEAK_ORDERING
1577 config SYS_HAS_CPU_LOONGSON2E
1580 config SYS_HAS_CPU_LOONGSON2F
1582 select CPU_SUPPORTS_CPUFREQ
1583 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1584 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1586 config SYS_HAS_CPU_LOONGSON1B
1589 config SYS_HAS_CPU_MIPS32_R1
1592 config SYS_HAS_CPU_MIPS32_R2
1595 config SYS_HAS_CPU_MIPS64_R1
1598 config SYS_HAS_CPU_MIPS64_R2
1601 config SYS_HAS_CPU_R3000
1604 config SYS_HAS_CPU_TX39XX
1607 config SYS_HAS_CPU_VR41XX
1610 config SYS_HAS_CPU_R4300
1613 config SYS_HAS_CPU_R4X00
1616 config SYS_HAS_CPU_TX49XX
1619 config SYS_HAS_CPU_R5000
1622 config SYS_HAS_CPU_R5432
1625 config SYS_HAS_CPU_R5500
1628 config SYS_HAS_CPU_R6000
1631 config SYS_HAS_CPU_NEVADA
1634 config SYS_HAS_CPU_R8000
1637 config SYS_HAS_CPU_R10000
1640 config SYS_HAS_CPU_RM7000
1643 config SYS_HAS_CPU_SB1
1646 config SYS_HAS_CPU_CAVIUM_OCTEON
1649 config SYS_HAS_CPU_BMIPS3300
1652 config SYS_HAS_CPU_BMIPS4350
1655 config SYS_HAS_CPU_BMIPS4380
1658 config SYS_HAS_CPU_BMIPS5000
1661 config SYS_HAS_CPU_XLR
1664 config SYS_HAS_CPU_XLP
1668 # CPU may reorder R->R, R->W, W->R, W->W
1669 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1671 config WEAK_ORDERING
1675 # CPU may reorder reads and writes beyond LL/SC
1676 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1678 config WEAK_REORDERING_BEYOND_LLSC
1683 # These two indicate any level of the MIPS32 and MIPS64 architecture
1687 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1691 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1694 # These two indicate the revision of the architecture, either Release 1 or Release 2
1698 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1702 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1704 config SYS_SUPPORTS_32BIT_KERNEL
1706 config SYS_SUPPORTS_64BIT_KERNEL
1708 config CPU_SUPPORTS_32BIT_KERNEL
1710 config CPU_SUPPORTS_64BIT_KERNEL
1712 config CPU_SUPPORTS_CPUFREQ
1714 config CPU_SUPPORTS_ADDRWINCFG
1716 config CPU_SUPPORTS_HUGEPAGES
1718 config CPU_SUPPORTS_UNCACHED_ACCELERATED
1720 config MIPS_PGD_C0_CONTEXT
1722 default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
1725 # Set to y for ptrace access to watch registers.
1727 config HARDWARE_WATCHPOINTS
1729 default y if CPU_MIPSR1 || CPU_MIPSR2
1734 prompt "Kernel code model"
1736 You should only select this option if you have a workload that
1737 actually benefits from 64-bit processing or if your machine has
1738 large memory. You will only be presented a single option in this
1739 menu if your system does not support both 32-bit and 64-bit kernels.
1742 bool "32-bit kernel"
1743 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1746 Select this option if you want to build a 32-bit kernel.
1748 bool "64-bit kernel"
1749 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1750 select HAVE_SYSCALL_WRAPPERS
1752 Select this option if you want to build a 64-bit kernel.
1757 prompt "Kernel page size"
1758 default PAGE_SIZE_4KB
1760 config PAGE_SIZE_4KB
1762 depends on !CPU_LOONGSON2
1764 This option select the standard 4kB Linux page size. On some
1765 R3000-family processors this is the only available page size. Using
1766 4kB page size will minimize memory consumption and is therefore
1767 recommended for low memory systems.
1769 config PAGE_SIZE_8KB
1771 depends on (EXPERIMENTAL && CPU_R8000) || CPU_CAVIUM_OCTEON
1773 Using 8kB page size will result in higher performance kernel at
1774 the price of higher memory consumption. This option is available
1775 only on R8000 and cnMIPS processors. Note that you will need a
1776 suitable Linux distribution to support this.
1778 config PAGE_SIZE_16KB
1780 depends on !CPU_R3000 && !CPU_TX39XX
1782 Using 16kB page size will result in higher performance kernel at
1783 the price of higher memory consumption. This option is available on
1784 all non-R3000 family processors. Note that you will need a suitable
1785 Linux distribution to support this.
1787 config PAGE_SIZE_32KB
1789 depends on CPU_CAVIUM_OCTEON
1791 Using 32kB page size will result in higher performance kernel at
1792 the price of higher memory consumption. This option is available
1793 only on cnMIPS cores. Note that you will need a suitable Linux
1794 distribution to support this.
1796 config PAGE_SIZE_64KB
1798 depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
1800 Using 64kB page size will result in higher performance kernel at
1801 the price of higher memory consumption. This option is available on
1802 all non-R3000 family processor. Not that at the time of this
1803 writing this option is still high experimental.
1807 config FORCE_MAX_ZONEORDER
1808 int "Maximum zone order"
1809 range 14 64 if HUGETLB_PAGE && PAGE_SIZE_64KB
1810 default "14" if HUGETLB_PAGE && PAGE_SIZE_64KB
1811 range 13 64 if HUGETLB_PAGE && PAGE_SIZE_32KB
1812 default "13" if HUGETLB_PAGE && PAGE_SIZE_32KB
1813 range 12 64 if HUGETLB_PAGE && PAGE_SIZE_16KB
1814 default "12" if HUGETLB_PAGE && PAGE_SIZE_16KB
1818 The kernel memory allocator divides physically contiguous memory
1819 blocks into "zones", where each zone is a power of two number of
1820 pages. This option selects the largest power of two that the kernel
1821 keeps in the memory allocator. If you need to allocate very large
1822 blocks of physically contiguous memory, then you may need to
1823 increase this value.
1825 This config option is actually maximum order plus one. For example,
1826 a value of 11 means that the largest free memory block is 2^10 pages.
1828 The page size is not necessarily 4KB. Keep this in mind
1829 when choosing a value for this option.
1834 config IP22_CPU_SCACHE
1839 # Support for a MIPS32 / MIPS64 style S-caches
1841 config MIPS_CPU_SCACHE
1845 config R5000_CPU_SCACHE
1849 config RM7000_CPU_SCACHE
1853 config SIBYTE_DMA_PAGEOPS
1854 bool "Use DMA to clear/copy pages"
1857 Instead of using the CPU to zero and copy pages, use a Data Mover
1858 channel. These DMA channels are otherwise unused by the standard
1859 SiByte Linux port. Seems to give a small performance benefit.
1861 config CPU_HAS_PREFETCH
1864 config CPU_GENERIC_DUMP_TLB
1866 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
1870 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1872 config CPU_R4K_CACHE_TLB
1874 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1877 prompt "MIPS MT options"
1879 config MIPS_MT_DISABLED
1880 bool "Disable multithreading support."
1882 Use this option if your workload can't take advantage of
1883 MIPS hardware multithreading support. On systems that don't have
1884 the option of an MT-enabled processor this option will be the only
1885 option in this menu.
1888 bool "Use 1 TC on each available VPE for SMP"
1889 depends on SYS_SUPPORTS_MULTITHREADING
1890 select CPU_MIPSR2_IRQ_VI
1891 select CPU_MIPSR2_IRQ_EI
1893 select NR_CPUS_DEFAULT_2
1895 select SYS_SUPPORTS_SCHED_SMT if SMP
1896 select SYS_SUPPORTS_SMP
1898 select MIPS_PERF_SHARED_TC_COUNTERS
1900 This is a kernel model which is known a VSMP but lately has been
1901 marketesed into SMVP.
1902 Virtual SMP uses the processor's VPEs to implement virtual
1903 processors. In currently available configuration of the 34K processor
1904 this allows for a dual processor. Both processors will share the same
1905 primary caches; each will obtain the half of the TLB for it's own
1906 exclusive use. For a layman this model can be described as similar to
1907 what Intel calls Hyperthreading.
1909 For further information see http://www.linux-mips.org/wiki/34K#VSMP
1912 bool "SMTC: Use all TCs on all VPEs for SMP"
1913 depends on CPU_MIPS32_R2
1914 #depends on CPU_MIPS64_R2 # once there is hardware ...
1915 depends on SYS_SUPPORTS_MULTITHREADING
1916 select CPU_MIPSR2_IRQ_VI
1917 select CPU_MIPSR2_IRQ_EI
1919 select NR_CPUS_DEFAULT_8
1921 select SYS_SUPPORTS_SMP
1924 This is a kernel model which is known a SMTC or lately has been
1925 marketesed into SMVP.
1926 is presenting the available TC's of the core as processors to Linux.
1927 On currently available 34K processors this means a Linux system will
1928 see up to 5 processors. The implementation of the SMTC kernel differs
1929 significantly from VSMP and cannot efficiently coexist in the same
1930 kernel binary so the choice between VSMP and SMTC is a compile time
1933 For further information see http://www.linux-mips.org/wiki/34K#SMTC
1941 bool "SMT (multithreading) scheduler support"
1942 depends on SYS_SUPPORTS_SCHED_SMT
1945 SMT scheduler support improves the CPU scheduler's decision making
1946 when dealing with MIPS MT enabled cores at a cost of slightly
1947 increased overhead in some places. If unsure say N here.
1949 config SYS_SUPPORTS_SCHED_SMT
1952 config SYS_SUPPORTS_MULTITHREADING
1955 config MIPS_MT_FPAFF
1956 bool "Dynamic FPU affinity for FP-intensive threads"
1958 depends on MIPS_MT_SMP || MIPS_MT_SMTC
1960 config MIPS_VPE_LOADER
1961 bool "VPE loader support."
1962 depends on SYS_SUPPORTS_MULTITHREADING
1963 select CPU_MIPSR2_IRQ_VI
1964 select CPU_MIPSR2_IRQ_EI
1967 Includes a loader for loading an elf relocatable object
1968 onto another VPE and running it.
1970 config MIPS_MT_SMTC_IM_BACKSTOP
1971 bool "Use per-TC register bits as backstop for inhibited IM bits"
1972 depends on MIPS_MT_SMTC
1975 To support multiple TC microthreads acting as "CPUs" within
1976 a VPE, VPE-wide interrupt mask bits must be specially manipulated
1977 during interrupt handling. To support legacy drivers and interrupt
1978 controller management code, SMTC has a "backstop" to track and
1979 if necessary restore the interrupt mask. This has some performance
1980 impact on interrupt service overhead.
1982 config MIPS_MT_SMTC_IRQAFF
1983 bool "Support IRQ affinity API"
1984 depends on MIPS_MT_SMTC
1987 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
1988 for SMTC Linux kernel. Requires platform support, of which
1989 an example can be found in the MIPS kernel i8259 and Malta
1990 platform code. Adds some overhead to interrupt dispatch, and
1991 should be used only if you know what you are doing.
1993 config MIPS_VPE_LOADER_TOM
1994 bool "Load VPE program into memory hidden from linux"
1995 depends on MIPS_VPE_LOADER
1998 The loader can use memory that is present but has been hidden from
1999 Linux using the kernel command line option "mem=xxMB". It's up to
2000 you to ensure the amount you put in the option and the space your
2001 program requires is less or equal to the amount physically present.
2003 # this should possibly be in drivers/char, but it is rather cpu related. Hmmm
2004 config MIPS_VPE_APSP_API
2005 bool "Enable support for AP/SP API (RTLX)"
2006 depends on MIPS_VPE_LOADER
2010 bool "MIPS CMP framework support"
2011 depends on SYS_SUPPORTS_MIPS_CMP
2013 select SYS_SUPPORTS_SMP
2014 select SYS_SUPPORTS_SCHED_SMT if SMP
2015 select WEAK_ORDERING
2018 This is a placeholder option for the GCMP work. It will need to
2019 be handled differently...
2021 config SB1_PASS_1_WORKAROUNDS
2023 depends on CPU_SB1_PASS_1
2026 config SB1_PASS_2_WORKAROUNDS
2028 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2031 config SB1_PASS_2_1_WORKAROUNDS
2033 depends on CPU_SB1 && CPU_SB1_PASS_2
2036 config 64BIT_PHYS_ADDR
2039 config ARCH_PHYS_ADDR_T_64BIT
2040 def_bool 64BIT_PHYS_ADDR
2042 config CPU_HAS_SMARTMIPS
2043 depends on SYS_SUPPORTS_SMARTMIPS
2044 bool "Support for the SmartMIPS ASE"
2046 SmartMIPS is a extension of the MIPS32 architecture aimed at
2047 increased security at both hardware and software level for
2048 smartcards. Enabling this option will allow proper use of the
2049 SmartMIPS instructions by Linux applications. However a kernel with
2050 this option will not work on a MIPS core without SmartMIPS core. If
2051 you don't know you probably don't have SmartMIPS and should say N
2061 # Vectored interrupt mode is an R2 feature
2063 config CPU_MIPSR2_IRQ_VI
2067 # Extended interrupt mode is an R2 feature
2069 config CPU_MIPSR2_IRQ_EI
2074 depends on !CPU_R3000
2080 config CPU_DADDI_WORKAROUNDS
2083 config CPU_R4000_WORKAROUNDS
2085 select CPU_R4400_WORKAROUNDS
2087 config CPU_R4400_WORKAROUNDS
2091 # - Highmem only makes sense for the 32-bit kernel.
2092 # - The current highmem code will only work properly on physically indexed
2093 # caches such as R3000, SB1, R7000 or those that look like they're virtually
2094 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2095 # moment we protect the user and offer the highmem option only on machines
2096 # where it's known to be safe. This will not offer highmem on a few systems
2097 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2098 # indexed CPUs but we're playing safe.
2099 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2100 # know they might have memory configurations that could make use of highmem
2104 bool "High Memory Support"
2105 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
2107 config CPU_SUPPORTS_HIGHMEM
2110 config SYS_SUPPORTS_HIGHMEM
2113 config SYS_SUPPORTS_SMARTMIPS
2116 config ARCH_FLATMEM_ENABLE
2118 depends on !NUMA && !CPU_LOONGSON2
2120 config ARCH_DISCONTIGMEM_ENABLE
2122 default y if SGI_IP27
2124 Say Y to support efficient handling of discontiguous physical memory,
2125 for architectures which are either NUMA (Non-Uniform Memory Access)
2126 or have huge holes in the physical address space for other reasons.
2127 See <file:Documentation/vm/numa> for more.
2129 config ARCH_SPARSEMEM_ENABLE
2131 select SPARSEMEM_STATIC
2135 depends on SYS_SUPPORTS_NUMA
2137 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2138 Access). This option improves performance on systems with more
2139 than two nodes; on two node systems it is generally better to
2140 leave it disabled; on single node systems disable this option
2143 config SYS_SUPPORTS_NUMA
2149 depends on NEED_MULTIPLE_NODES
2151 config HW_PERF_EVENTS
2152 bool "Enable hardware performance counter support for perf events"
2153 depends on PERF_EVENTS && !MIPS_MT_SMTC && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP)
2156 Enable hardware performance counter support for perf events. If
2157 disabled, perf events will use software events only.
2162 bool "Multi-Processing support"
2163 depends on SYS_SUPPORTS_SMP
2164 select USE_GENERIC_SMP_HELPERS
2166 This enables support for systems with more than one CPU. If you have
2167 a system with only one CPU, like most personal computers, say N. If
2168 you have a system with more than one CPU, say Y.
2170 If you say N here, the kernel will run on single and multiprocessor
2171 machines, but will use only one CPU of a multiprocessor machine. If
2172 you say Y here, the kernel will run on many, but not all,
2173 singleprocessor machines. On a singleprocessor machine, the kernel
2174 will run faster if you say N here.
2176 People using multiprocessor machines who say Y here should also say
2177 Y to "Enhanced Real Time Clock Support", below.
2179 See also the SMP-HOWTO available at
2180 <http://www.tldp.org/docs.html#howto>.
2182 If you don't know what to do here, say N.
2187 config SYS_SUPPORTS_MIPS_CMP
2190 config SYS_SUPPORTS_SMP
2193 config NR_CPUS_DEFAULT_1
2196 config NR_CPUS_DEFAULT_2
2199 config NR_CPUS_DEFAULT_4
2202 config NR_CPUS_DEFAULT_8
2205 config NR_CPUS_DEFAULT_16
2208 config NR_CPUS_DEFAULT_32
2211 config NR_CPUS_DEFAULT_64
2215 int "Maximum number of CPUs (2-64)"
2216 range 1 64 if NR_CPUS_DEFAULT_1
2218 default "1" if NR_CPUS_DEFAULT_1
2219 default "2" if NR_CPUS_DEFAULT_2
2220 default "4" if NR_CPUS_DEFAULT_4
2221 default "8" if NR_CPUS_DEFAULT_8
2222 default "16" if NR_CPUS_DEFAULT_16
2223 default "32" if NR_CPUS_DEFAULT_32
2224 default "64" if NR_CPUS_DEFAULT_64
2226 This allows you to specify the maximum number of CPUs which this
2227 kernel will support. The maximum supported value is 32 for 32-bit
2228 kernel and 64 for 64-bit kernels; the minimum value which makes
2229 sense is 1 for Qemu (useful only for kernel debugging purposes)
2230 and 2 for all others.
2232 This is purely to save memory - each supported CPU adds
2233 approximately eight kilobytes to the kernel image. For best
2234 performance should round up your number of processors to the next
2237 config MIPS_PERF_SHARED_TC_COUNTERS
2241 # Timer Interrupt Frequency Configuration
2245 prompt "Timer frequency"
2248 Allows the configuration of the timer frequency.
2251 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2254 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2257 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2260 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2263 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2266 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2269 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2273 config SYS_SUPPORTS_48HZ
2276 config SYS_SUPPORTS_100HZ
2279 config SYS_SUPPORTS_128HZ
2282 config SYS_SUPPORTS_250HZ
2285 config SYS_SUPPORTS_256HZ
2288 config SYS_SUPPORTS_1000HZ
2291 config SYS_SUPPORTS_1024HZ
2294 config SYS_SUPPORTS_ARBIT_HZ
2296 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2297 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2298 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2299 !SYS_SUPPORTS_1024HZ
2304 default 100 if HZ_100
2305 default 128 if HZ_128
2306 default 250 if HZ_250
2307 default 256 if HZ_256
2308 default 1000 if HZ_1000
2309 default 1024 if HZ_1024
2311 source "kernel/Kconfig.preempt"
2314 bool "Kexec system call (EXPERIMENTAL)"
2315 depends on EXPERIMENTAL
2317 kexec is a system call that implements the ability to shutdown your
2318 current kernel, and to start another kernel. It is like a reboot
2319 but it is independent of the system firmware. And like a reboot
2320 you can start any kernel with it, not just Linux.
2322 The name comes from the similarity to the exec system call.
2324 It is an ongoing process to be certain the hardware in a machine
2325 is properly shutdown, so do not be surprised if this code does not
2326 initially work for you. It may help to enable device hotplugging
2327 support. As of this writing the exact hardware interface is
2328 strongly in flux, so no good recommendation can be made.
2331 bool "Kernel crash dumps"
2333 Generate crash dump after being started by kexec.
2334 This should be normally only set in special crash dump kernels
2335 which are loaded in the main kernel with kexec-tools into
2336 a specially reserved region and then later executed after
2337 a crash by kdump/kexec. The crash dump kernel must be compiled
2338 to a memory address not used by the main kernel or firmware using
2341 config PHYSICAL_START
2342 hex "Physical address where the kernel is loaded"
2343 default "0xffffffff84000000" if 64BIT
2344 default "0x84000000" if 32BIT
2345 depends on CRASH_DUMP
2347 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2348 If you plan to use kernel for capturing the crash dump change
2349 this value to start of the reserved region (the "X" value as
2350 specified in the "crashkernel=YM@XM" command line boot parameter
2351 passed to the panic-ed kernel).
2354 bool "Enable seccomp to safely compute untrusted bytecode"
2358 This kernel feature is useful for number crunching applications
2359 that may need to compute untrusted bytecode during their
2360 execution. By using pipes or other transports made available to
2361 the process as file descriptors supporting the read/write
2362 syscalls, it's possible to isolate those applications in
2363 their own address space using seccomp. Once seccomp is
2364 enabled via /proc/<pid>/seccomp, it cannot be disabled
2365 and the task is only allowed to execute a few safe syscalls
2366 defined by each seccomp mode.
2368 If unsure, say Y. Only embedded should say N here.
2373 select OF_EARLY_FLATTREE
2378 config LOCKDEP_SUPPORT
2382 config STACKTRACE_SUPPORT
2386 source "init/Kconfig"
2388 source "kernel/Kconfig.freezer"
2390 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2398 bool "Support for PCI controller"
2399 depends on HW_HAS_PCI
2401 select GENERIC_PCI_IOMAP
2402 select NO_GENERIC_PCI_IOPORT_MAP
2404 Find out whether you have a PCI motherboard. PCI is the name of a
2405 bus system, i.e. the way the CPU talks to the other stuff inside
2406 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2412 source "drivers/pci/Kconfig"
2414 source "drivers/pci/pcie/Kconfig"
2417 # ISA support is now enabled via select. Too many systems still have the one
2418 # or other ISA chip on the board that users don't know about so don't expect
2419 # users to choose the right thing ...
2426 depends on HW_HAS_EISA
2428 select GENERIC_ISA_DMA
2430 The Extended Industry Standard Architecture (EISA) bus was
2431 developed as an open alternative to the IBM MicroChannel bus.
2433 The EISA bus provided some of the features of the IBM MicroChannel
2434 bus while maintaining backward compatibility with cards made for
2435 the older ISA bus. The EISA bus saw limited use between 1988 and
2436 1995 when it was made obsolete by the PCI bus.
2438 Say Y here if you are building a kernel for an EISA-based machine.
2442 source "drivers/eisa/Kconfig"
2445 bool "TURBOchannel support"
2446 depends on MACH_DECSTATION
2448 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2449 processors. TURBOchannel programming specifications are available
2451 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2453 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2454 Linux driver support status is documented at:
2455 <http://www.linux-mips.org/wiki/DECstation>
2465 select MIPS_EXTERNAL_TIMER
2470 source "drivers/pcmcia/Kconfig"
2472 source "drivers/pci/hotplug/Kconfig"
2475 bool "RapidIO support"
2479 If you say Y here, the kernel will include drivers and
2480 infrastructure code to support RapidIO interconnect devices.
2482 source "drivers/rapidio/Kconfig"
2486 menu "Executable file formats"
2488 source "fs/Kconfig.binfmt"
2493 config MIPS32_COMPAT
2494 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2497 Select this option if you want Linux/MIPS 32-bit binary
2498 compatibility. Since all software available for Linux/MIPS is
2499 currently 32-bit you should say Y here.
2503 depends on MIPS32_COMPAT
2504 select ARCH_WANT_OLD_COMPAT_IPC
2507 config SYSVIPC_COMPAT
2509 depends on COMPAT && SYSVIPC
2513 bool "Kernel support for o32 binaries"
2514 depends on MIPS32_COMPAT
2516 Select this option if you want to run o32 binaries. These are pure
2517 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2518 existing binaries are in this format.
2523 bool "Kernel support for n32 binaries"
2524 depends on MIPS32_COMPAT
2526 Select this option if you want to run n32 binaries. These are
2527 64-bit binaries using 32-bit quantities for addressing and certain
2528 data that would normally be 64-bit. They are used in special
2535 default y if MIPS32_O32 || MIPS32_N32
2539 menu "Power management options"
2541 config ARCH_HIBERNATION_POSSIBLE
2543 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2545 config ARCH_SUSPEND_POSSIBLE
2547 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2549 source "kernel/power/Kconfig"
2553 source "arch/mips/kernel/cpufreq/Kconfig"
2555 source "net/Kconfig"
2557 source "drivers/Kconfig"
2559 source "drivers/firmware/Kconfig"
2563 source "arch/mips/Kconfig.debug"
2565 source "security/Kconfig"
2567 source "crypto/Kconfig"
2569 source "lib/Kconfig"