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 if CPU_SUPPORTS_HUGEPAGES && 64BIT
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
42 select MODULES_USE_ELF_REL if MODULES
43 select MODULES_USE_ELF_RELA if MODULES && 64BIT
44 select CLONE_BACKWARDS
46 menu "Machine selection"
56 bool "Alchemy processor based machines"
57 select 64BIT_PHYS_ADDR
61 select SYS_HAS_CPU_MIPS32_R1
62 select SYS_SUPPORTS_32BIT_KERNEL
63 select SYS_SUPPORTS_APM_EMULATION
65 select ARCH_WANT_OPTIONAL_GPIOLIB
66 select SYS_SUPPORTS_ZBOOT
67 select USB_ARCH_HAS_OHCI
68 select USB_ARCH_HAS_EHCI
71 bool "Texas Instruments AR7"
73 select DMA_NONCOHERENT
79 select SYS_HAS_CPU_MIPS32_R1
80 select SYS_HAS_EARLY_PRINTK
81 select SYS_SUPPORTS_32BIT_KERNEL
82 select SYS_SUPPORTS_LITTLE_ENDIAN
83 select SYS_SUPPORTS_ZBOOT_UART16550
84 select ARCH_REQUIRE_GPIOLIB
88 Support for the Texas Instruments AR7 System-on-a-Chip
89 family: TNETD7100, 7200 and 7300.
92 bool "Atheros AR71XX/AR724X/AR913X based boards"
93 select ARCH_REQUIRE_GPIOLIB
97 select DMA_NONCOHERENT
101 select SYS_HAS_CPU_MIPS32_R2
102 select SYS_HAS_EARLY_PRINTK
103 select SYS_SUPPORTS_32BIT_KERNEL
104 select SYS_SUPPORTS_BIG_ENDIAN
106 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
109 bool "Broadcom BCM47XX based boards"
110 select ARCH_WANT_OPTIONAL_GPIOLIB
114 select DMA_NONCOHERENT
118 select NO_EXCEPT_FILL
119 select SYS_SUPPORTS_32BIT_KERNEL
120 select SYS_SUPPORTS_LITTLE_ENDIAN
121 select SYS_HAS_EARLY_PRINTK
123 Support for BCM47XX based boards
126 bool "Broadcom BCM63XX based boards"
129 select DMA_NONCOHERENT
131 select SYS_HAS_CPU_MIPS32_R1
132 select SYS_SUPPORTS_32BIT_KERNEL
133 select SYS_SUPPORTS_BIG_ENDIAN
134 select SYS_HAS_EARLY_PRINTK
136 select ARCH_REQUIRE_GPIOLIB
139 Support for BCM63XX based boards
146 select DMA_NONCOHERENT
152 select PCI_GT64XXX_PCI0
154 select SYS_HAS_CPU_NEVADA
155 select SYS_HAS_EARLY_PRINTK
156 select SYS_SUPPORTS_32BIT_KERNEL
157 select SYS_SUPPORTS_64BIT_KERNEL
158 select SYS_SUPPORTS_LITTLE_ENDIAN
160 config MACH_DECSTATION
167 select CPU_DADDI_WORKAROUNDS if 64BIT
168 select CPU_R4000_WORKAROUNDS if 64BIT
169 select CPU_R4400_WORKAROUNDS if 64BIT
170 select DMA_NONCOHERENT
173 select SYS_HAS_CPU_R3000
174 select SYS_HAS_CPU_R4X00
175 select SYS_SUPPORTS_32BIT_KERNEL
176 select SYS_SUPPORTS_64BIT_KERNEL
177 select SYS_SUPPORTS_LITTLE_ENDIAN
178 select SYS_SUPPORTS_128HZ
179 select SYS_SUPPORTS_256HZ
180 select SYS_SUPPORTS_1024HZ
182 This enables support for DEC's MIPS based workstations. For details
183 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
184 DECstation porting pages on <http://decstation.unix-ag.org/>.
186 If you have one of the following DECstation Models you definitely
187 want to choose R4xx0 for the CPU Type:
194 otherwise choose R3000.
197 bool "Jazz family of machines"
200 select ARCH_MAY_HAVE_PC_FDC
203 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
204 select GENERIC_ISA_DMA
205 select HAVE_PCSPKR_PLATFORM
210 select SYS_HAS_CPU_R4X00
211 select SYS_SUPPORTS_32BIT_KERNEL
212 select SYS_SUPPORTS_64BIT_KERNEL
213 select SYS_SUPPORTS_100HZ
215 This a family of machines based on the MIPS R4030 chipset which was
216 used by several vendors to build RISC/os and Windows NT workstations.
217 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
218 Olivetti M700-10 workstations.
221 bool "Ingenic JZ4740 based machines"
222 select SYS_HAS_CPU_MIPS32_R1
223 select SYS_SUPPORTS_32BIT_KERNEL
224 select SYS_SUPPORTS_LITTLE_ENDIAN
225 select SYS_SUPPORTS_ZBOOT_UART16550
226 select DMA_NONCOHERENT
229 select ARCH_REQUIRE_GPIOLIB
230 select SYS_HAS_EARLY_PRINTK
233 select GENERIC_IRQ_CHIP
236 bool "Lantiq based platforms"
237 select DMA_NONCOHERENT
241 select SYS_HAS_CPU_MIPS32_R1
242 select SYS_HAS_CPU_MIPS32_R2
243 select SYS_SUPPORTS_BIG_ENDIAN
244 select SYS_SUPPORTS_32BIT_KERNEL
245 select SYS_SUPPORTS_MULTITHREADING
246 select SYS_HAS_EARLY_PRINTK
247 select ARCH_REQUIRE_GPIOLIB
250 select HAVE_MACH_CLKDEV
254 select PINCTRL_LANTIQ
257 bool "LASAT Networks platforms"
260 select DMA_NONCOHERENT
261 select SYS_HAS_EARLY_PRINTK
264 select PCI_GT64XXX_PCI0
266 select R5000_CPU_SCACHE
267 select SYS_HAS_CPU_R5000
268 select SYS_SUPPORTS_32BIT_KERNEL
269 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
270 select SYS_SUPPORTS_LITTLE_ENDIAN
273 bool "Loongson family of machines"
274 select SYS_SUPPORTS_ZBOOT
276 This enables the support of Loongson family of machines.
278 Loongson is a family of general-purpose MIPS-compatible CPUs.
279 developed at Institute of Computing Technology (ICT),
280 Chinese Academy of Sciences (CAS) in the People's Republic
281 of China. The chief architect is Professor Weiwu Hu.
283 config MACH_LOONGSON1
284 bool "Loongson 1 family of machines"
285 select SYS_SUPPORTS_ZBOOT
287 This enables support for the Loongson 1 based machines.
289 Loongson 1 is a family of 32-bit MIPS-compatible SoCs developed by
290 the ICT (Institute of Computing Technology) and the Chinese Academy
294 bool "MIPS Malta board"
295 select ARCH_MAY_HAVE_PC_FDC
301 select DMA_NONCOHERENT
302 select GENERIC_ISA_DMA
303 select HAVE_PCSPKR_PLATFORM
309 select MIPS_BOARDS_GEN
311 select MIPS_CPU_SCACHE
312 select PCI_GT64XXX_PCI0
315 select SYS_HAS_CPU_MIPS32_R1
316 select SYS_HAS_CPU_MIPS32_R2
317 select SYS_HAS_CPU_MIPS64_R1
318 select SYS_HAS_CPU_MIPS64_R2
319 select SYS_HAS_CPU_NEVADA
320 select SYS_HAS_CPU_RM7000
321 select SYS_HAS_EARLY_PRINTK
322 select SYS_SUPPORTS_32BIT_KERNEL
323 select SYS_SUPPORTS_64BIT_KERNEL
324 select SYS_SUPPORTS_BIG_ENDIAN
325 select SYS_SUPPORTS_LITTLE_ENDIAN
326 select SYS_SUPPORTS_MIPS_CMP
327 select SYS_SUPPORTS_MULTITHREADING
328 select SYS_SUPPORTS_SMARTMIPS
329 select SYS_SUPPORTS_ZBOOT
331 This enables support for the MIPS Technologies Malta evaluation
335 bool "MIPS SEAD3 board"
340 select CPU_MIPSR2_IRQ_VI
341 select CPU_MIPSR2_IRQ_EI
342 select DMA_NONCOHERENT
345 select MIPS_BOARDS_GEN
346 select MIPS_CPU_SCACHE
348 select SYS_HAS_CPU_MIPS32_R1
349 select SYS_HAS_CPU_MIPS32_R2
350 select SYS_HAS_CPU_MIPS64_R1
351 select SYS_HAS_EARLY_PRINTK
352 select SYS_SUPPORTS_32BIT_KERNEL
353 select SYS_SUPPORTS_64BIT_KERNEL
354 select SYS_SUPPORTS_BIG_ENDIAN
355 select SYS_SUPPORTS_LITTLE_ENDIAN
356 select SYS_SUPPORTS_SMARTMIPS
357 select USB_ARCH_HAS_EHCI
358 select USB_EHCI_BIG_ENDIAN_DESC
359 select USB_EHCI_BIG_ENDIAN_MMIO
362 This enables support for the MIPS Technologies SEAD3 evaluation
366 bool "NEC EMMA2RH Mark-eins board"
370 This enables support for the NEC Electronics Mark-eins boards.
373 bool "NEC VR4100 series based machines"
376 select SYS_HAS_CPU_VR41XX
377 select ARCH_REQUIRE_GPIOLIB
380 bool "NXP STB220 board"
383 Support for NXP Semiconductors STB220 Development Board.
390 Support for NXP Semiconductors STB225 Development Board.
393 bool "PMC-Sierra MSP chipsets"
396 select DMA_NONCOHERENT
398 select NO_EXCEPT_FILL
400 select SYS_HAS_CPU_MIPS32_R1
401 select SYS_HAS_CPU_MIPS32_R2
402 select SYS_SUPPORTS_32BIT_KERNEL
403 select SYS_SUPPORTS_BIG_ENDIAN
406 select SERIAL_8250_CONSOLE
407 select USB_EHCI_BIG_ENDIAN_MMIO
408 select USB_EHCI_BIG_ENDIAN_DESC
410 This adds support for the PMC-Sierra family of Multi-Service
411 Processor System-On-A-Chips. These parts include a number
412 of integrated peripherals, interfaces and DSPs in addition to
413 a variety of MIPS cores.
419 select CPU_MIPSR2_IRQ_VI
420 select CPU_MIPSR2_IRQ_EI
422 select DMA_NONCOHERENT
424 select SYS_HAS_EARLY_PRINTK
425 select SYS_HAS_CPU_MIPS32_R2
426 select SYS_SUPPORTS_32BIT_KERNEL
427 select SYS_SUPPORTS_BIG_ENDIAN
428 select SYS_SUPPORTS_HIGHMEM
429 select USB_OHCI_LITTLE_ENDIAN
431 This enables support for the Cisco PowerTV Platform.
434 bool "Ralink based machines"
438 select DMA_NONCOHERENT
441 select SYS_HAS_CPU_MIPS32_R1
442 select SYS_HAS_CPU_MIPS32_R2
443 select SYS_SUPPORTS_32BIT_KERNEL
444 select SYS_SUPPORTS_LITTLE_ENDIAN
445 select SYS_HAS_EARLY_PRINTK
446 select HAVE_MACH_CLKDEV
450 bool "SGI IP22 (Indy/Indigo2)"
456 select DEFAULT_SGI_PARTITION
457 select DMA_NONCOHERENT
461 select IP22_CPU_SCACHE
463 select GENERIC_ISA_DMA_SUPPORT_BROKEN
465 select SGI_HAS_INDYDOG
471 select SYS_HAS_CPU_R4X00
472 select SYS_HAS_CPU_R5000
474 # Disable EARLY_PRINTK for now since it leads to overwritten prom
475 # memory during early boot on some machines.
477 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
478 # for a more details discussion
480 # select SYS_HAS_EARLY_PRINTK
481 select SYS_SUPPORTS_32BIT_KERNEL
482 select SYS_SUPPORTS_64BIT_KERNEL
483 select SYS_SUPPORTS_BIG_ENDIAN
485 This are the SGI Indy, Challenge S and Indigo2, as well as certain
486 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
487 that runs on these, say Y here.
490 bool "SGI IP27 (Origin200/2000)"
494 select DEFAULT_SGI_PARTITION
496 select SYS_HAS_EARLY_PRINTK
498 select NR_CPUS_DEFAULT_64
499 select SYS_HAS_CPU_R10000
500 select SYS_SUPPORTS_64BIT_KERNEL
501 select SYS_SUPPORTS_BIG_ENDIAN
502 select SYS_SUPPORTS_NUMA
503 select SYS_SUPPORTS_SMP
505 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
506 workstations. To compile a Linux kernel that runs on these, say Y
510 bool "SGI IP28 (Indigo2 R10k)"
516 select DEFAULT_SGI_PARTITION
517 select DMA_NONCOHERENT
518 select GENERIC_ISA_DMA_SUPPORT_BROKEN
524 select SGI_HAS_INDYDOG
530 select SYS_HAS_CPU_R10000
532 # Disable EARLY_PRINTK for now since it leads to overwritten prom
533 # memory during early boot on some machines.
535 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
536 # for a more details discussion
538 # select SYS_HAS_EARLY_PRINTK
539 select SYS_SUPPORTS_64BIT_KERNEL
540 select SYS_SUPPORTS_BIG_ENDIAN
542 This is the SGI Indigo2 with R10000 processor. To compile a Linux
543 kernel that runs on these, say Y here.
552 select DMA_NONCOHERENT
555 select R5000_CPU_SCACHE
556 select RM7000_CPU_SCACHE
557 select SYS_HAS_CPU_R5000
558 select SYS_HAS_CPU_R10000 if BROKEN
559 select SYS_HAS_CPU_RM7000
560 select SYS_HAS_CPU_NEVADA
561 select SYS_SUPPORTS_64BIT_KERNEL
562 select SYS_SUPPORTS_BIG_ENDIAN
564 If you want this kernel to run on SGI O2 workstation, say Y here.
567 bool "Sibyte BCM91120C-CRhine"
570 select SIBYTE_BCM1120
572 select SYS_HAS_CPU_SB1
573 select SYS_SUPPORTS_BIG_ENDIAN
574 select SYS_SUPPORTS_LITTLE_ENDIAN
577 bool "Sibyte BCM91120x-Carmel"
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"
590 select SIBYTE_BCM1125
592 select SYS_HAS_CPU_SB1
593 select SYS_SUPPORTS_BIG_ENDIAN
594 select SYS_SUPPORTS_HIGHMEM
595 select SYS_SUPPORTS_LITTLE_ENDIAN
598 bool "Sibyte BCM91125E-Rhone"
601 select SIBYTE_BCM1125H
603 select SYS_HAS_CPU_SB1
604 select SYS_SUPPORTS_BIG_ENDIAN
605 select SYS_SUPPORTS_LITTLE_ENDIAN
608 bool "Sibyte BCM91250A-SWARM"
611 select HAVE_PATA_PLATFORM
612 select NR_CPUS_DEFAULT_2
615 select SYS_HAS_CPU_SB1
616 select SYS_SUPPORTS_BIG_ENDIAN
617 select SYS_SUPPORTS_HIGHMEM
618 select SYS_SUPPORTS_LITTLE_ENDIAN
619 select ZONE_DMA32 if 64BIT
621 config SIBYTE_LITTLESUR
622 bool "Sibyte BCM91250C2-LittleSur"
625 select HAVE_PATA_PLATFORM
626 select NR_CPUS_DEFAULT_2
629 select SYS_HAS_CPU_SB1
630 select SYS_SUPPORTS_BIG_ENDIAN
631 select SYS_SUPPORTS_HIGHMEM
632 select SYS_SUPPORTS_LITTLE_ENDIAN
634 config SIBYTE_SENTOSA
635 bool "Sibyte BCM91250E-Sentosa"
638 select NR_CPUS_DEFAULT_2
641 select SYS_HAS_CPU_SB1
642 select SYS_SUPPORTS_BIG_ENDIAN
643 select SYS_SUPPORTS_LITTLE_ENDIAN
646 bool "Sibyte BCM91480B-BigSur"
649 select NR_CPUS_DEFAULT_4
650 select SIBYTE_BCM1x80
652 select SYS_HAS_CPU_SB1
653 select SYS_SUPPORTS_BIG_ENDIAN
654 select SYS_SUPPORTS_HIGHMEM
655 select SYS_SUPPORTS_LITTLE_ENDIAN
656 select ZONE_DMA32 if 64BIT
659 bool "SNI RM200/300/400"
660 select FW_ARC if CPU_LITTLE_ENDIAN
661 select FW_ARC32 if CPU_LITTLE_ENDIAN
662 select FW_SNIPROM if CPU_BIG_ENDIAN
663 select ARCH_MAY_HAVE_PC_FDC
667 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
668 select DMA_NONCOHERENT
669 select GENERIC_ISA_DMA
670 select HAVE_PCSPKR_PLATFORM
677 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
678 select SYS_HAS_CPU_R4X00
679 select SYS_HAS_CPU_R5000
680 select SYS_HAS_CPU_R10000
681 select R5000_CPU_SCACHE
682 select SYS_HAS_EARLY_PRINTK
683 select SYS_SUPPORTS_32BIT_KERNEL
684 select SYS_SUPPORTS_64BIT_KERNEL
685 select SYS_SUPPORTS_BIG_ENDIAN
686 select SYS_SUPPORTS_HIGHMEM
687 select SYS_SUPPORTS_LITTLE_ENDIAN
689 The SNI RM200/300/400 are MIPS-based machines manufactured by
690 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
691 Technology and now in turn merged with Fujitsu. Say Y here to
692 support this machine type.
695 bool "Toshiba TX39 series based machines"
698 bool "Toshiba TX49 series based machines"
700 config MIKROTIK_RB532
701 bool "Mikrotik RB532 boards"
704 select DMA_NONCOHERENT
707 select SYS_HAS_CPU_MIPS32_R1
708 select SYS_SUPPORTS_32BIT_KERNEL
709 select SYS_SUPPORTS_LITTLE_ENDIAN
712 select ARCH_REQUIRE_GPIOLIB
714 Support the Mikrotik(tm) RouterBoard 532 series,
715 based on the IDT RC32434 SoC.
718 bool "Wind River PPMC board"
723 select DMA_NONCOHERENT
725 select PCI_GT64XXX_PCI0
727 select SYS_HAS_CPU_MIPS32_R1
728 select SYS_HAS_CPU_MIPS32_R2
729 select SYS_HAS_CPU_MIPS64_R1
730 select SYS_HAS_CPU_NEVADA
731 select SYS_HAS_CPU_RM7000
732 select SYS_SUPPORTS_32BIT_KERNEL
733 select SYS_SUPPORTS_64BIT_KERNEL
734 select SYS_SUPPORTS_BIG_ENDIAN
735 select SYS_SUPPORTS_LITTLE_ENDIAN
737 This enables support for the Wind River MIPS32 4KC PPMC evaluation
738 board, which is based on GT64120 bridge chip.
740 config CAVIUM_OCTEON_SIMULATOR
741 bool "Cavium Networks Octeon Simulator"
743 select 64BIT_PHYS_ADDR
745 select SYS_SUPPORTS_64BIT_KERNEL
746 select SYS_SUPPORTS_BIG_ENDIAN
747 select SYS_SUPPORTS_HOTPLUG_CPU
748 select SYS_HAS_CPU_CAVIUM_OCTEON
751 The Octeon simulator is software performance model of the Cavium
752 Octeon Processor. It supports simulating Octeon processors on x86
755 config CAVIUM_OCTEON_REFERENCE_BOARD
756 bool "Cavium Networks Octeon reference board"
758 select 64BIT_PHYS_ADDR
760 select SYS_SUPPORTS_64BIT_KERNEL
761 select SYS_SUPPORTS_BIG_ENDIAN
763 select SYS_SUPPORTS_HOTPLUG_CPU
764 select SYS_HAS_EARLY_PRINTK
765 select SYS_HAS_CPU_CAVIUM_OCTEON
768 select ARCH_SUPPORTS_MSI
770 select USB_ARCH_HAS_OHCI
771 select USB_ARCH_HAS_EHCI
774 This option supports all of the Octeon reference boards from Cavium
775 Networks. It builds a kernel that dynamically determines the Octeon
776 CPU type and supports all known board reference implementations.
777 Some of the supported boards are:
784 Say Y here for most Octeon reference boards.
787 bool "Netlogic XLR/XLS based systems"
790 select SYS_HAS_CPU_XLR
791 select SYS_SUPPORTS_SMP
794 select SYS_SUPPORTS_32BIT_KERNEL
795 select SYS_SUPPORTS_64BIT_KERNEL
796 select 64BIT_PHYS_ADDR
797 select SYS_SUPPORTS_BIG_ENDIAN
798 select SYS_SUPPORTS_HIGHMEM
800 select NR_CPUS_DEFAULT_32
804 select ARCH_SUPPORTS_MSI
805 select ZONE_DMA32 if 64BIT
807 select SYS_HAS_EARLY_PRINTK
808 select USB_ARCH_HAS_OHCI if USB_SUPPORT
809 select USB_ARCH_HAS_EHCI if USB_SUPPORT
811 Support for systems based on Netlogic XLR and XLS processors.
812 Say Y here if you have a XLR or XLS based board.
815 bool "Netlogic XLP based systems"
818 select SYS_HAS_CPU_XLP
819 select SYS_SUPPORTS_SMP
821 select SYS_SUPPORTS_32BIT_KERNEL
822 select SYS_SUPPORTS_64BIT_KERNEL
823 select 64BIT_PHYS_ADDR
824 select SYS_SUPPORTS_BIG_ENDIAN
825 select SYS_SUPPORTS_LITTLE_ENDIAN
826 select SYS_SUPPORTS_HIGHMEM
828 select NR_CPUS_DEFAULT_32
832 select ZONE_DMA32 if 64BIT
834 select SYS_HAS_EARLY_PRINTK
837 This board is based on Netlogic XLP Processor.
838 Say Y here if you have a XLP based board.
842 source "arch/mips/alchemy/Kconfig"
843 source "arch/mips/ath79/Kconfig"
844 source "arch/mips/bcm47xx/Kconfig"
845 source "arch/mips/bcm63xx/Kconfig"
846 source "arch/mips/jazz/Kconfig"
847 source "arch/mips/jz4740/Kconfig"
848 source "arch/mips/lantiq/Kconfig"
849 source "arch/mips/lasat/Kconfig"
850 source "arch/mips/pmcs-msp71xx/Kconfig"
851 source "arch/mips/powertv/Kconfig"
852 source "arch/mips/ralink/Kconfig"
853 source "arch/mips/sgi-ip27/Kconfig"
854 source "arch/mips/sibyte/Kconfig"
855 source "arch/mips/txx9/Kconfig"
856 source "arch/mips/vr41xx/Kconfig"
857 source "arch/mips/cavium-octeon/Kconfig"
858 source "arch/mips/loongson/Kconfig"
859 source "arch/mips/loongson1/Kconfig"
860 source "arch/mips/netlogic/Kconfig"
864 config RWSEM_GENERIC_SPINLOCK
868 config RWSEM_XCHGADD_ALGORITHM
871 config ARCH_HAS_ILOG2_U32
875 config ARCH_HAS_ILOG2_U64
879 config GENERIC_HWEIGHT
883 config GENERIC_CALIBRATE_DELAY
887 config SCHED_OMIT_FRAME_POINTER
892 # Select some configuration options automatically based on user selections.
897 config ARCH_MAY_HAVE_PC_FDC
941 select ARCH_REQUIRE_GPIOLIB
947 config ARCH_DMA_ADDR_T_64BIT
948 def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT
953 config DMA_NONCOHERENT
955 select NEED_DMA_MAP_STATE
957 config NEED_DMA_MAP_STATE
960 config SYS_HAS_EARLY_PRINTK
964 bool "Support for hot-pluggable CPUs"
965 depends on SMP && HOTPLUG && SYS_SUPPORTS_HOTPLUG_CPU
967 Say Y here to allow turning CPUs off and on. CPUs can be
968 controlled through /sys/devices/system/cpu.
969 (Note: power management support will enable this option
970 automatically on SMP systems. )
971 Say N if you want to disable CPU hotplug.
973 config SYS_SUPPORTS_HOTPLUG_CPU
988 config MIPS_DISABLE_OBSOLETE_IDE
1000 config GENERIC_ISA_DMA
1002 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1005 config GENERIC_ISA_DMA_SUPPORT_BROKEN
1007 select GENERIC_ISA_DMA
1015 config HOLES_IN_ZONE
1019 # Endianness selection. Sufficiently obscure so many users don't know what to
1020 # answer,so we try hard to limit the available choices. Also the use of a
1021 # choice statement should be more obvious to the user.
1024 prompt "Endianness selection"
1026 Some MIPS machines can be configured for either little or big endian
1027 byte order. These modes require different kernels and a different
1028 Linux distribution. In general there is one preferred byteorder for a
1029 particular system but some systems are just as commonly used in the
1030 one or the other endianness.
1032 config CPU_BIG_ENDIAN
1034 depends on SYS_SUPPORTS_BIG_ENDIAN
1036 config CPU_LITTLE_ENDIAN
1037 bool "Little endian"
1038 depends on SYS_SUPPORTS_LITTLE_ENDIAN
1046 config SYS_SUPPORTS_APM_EMULATION
1049 config SYS_SUPPORTS_BIG_ENDIAN
1052 config SYS_SUPPORTS_LITTLE_ENDIAN
1055 config SYS_SUPPORTS_HUGETLBFS
1057 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1060 config MIPS_HUGE_TLB_SUPPORT
1061 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1084 config MIPS_BOARDS_GEN
1087 config PCI_GT64XXX_PCI0
1090 config NO_EXCEPT_FILL
1097 select DMA_NONCOHERENT
1099 select SWAP_IO_SPACE
1100 select SYS_HAS_CPU_R5500
1101 select SYS_SUPPORTS_32BIT_KERNEL
1102 select SYS_SUPPORTS_64BIT_KERNEL
1103 select SYS_SUPPORTS_BIG_ENDIAN
1110 select DMA_NONCOHERENT
1111 select SYS_HAS_CPU_MIPS32_R2
1112 select SYS_SUPPORTS_32BIT_KERNEL
1113 select SYS_SUPPORTS_LITTLE_ENDIAN
1114 select SYS_SUPPORTS_BIG_ENDIAN
1116 select CPU_MIPSR2_IRQ_VI
1122 config SWAP_IO_SPACE
1125 config SGI_HAS_INDYDOG
1137 config SGI_HAS_ZILOG
1140 config SGI_HAS_I8042
1143 config DEFAULT_SGI_PARTITION
1155 config MIPS_L1_CACHE_SHIFT
1157 default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL
1158 default "6" if MIPS_CPU_SCACHE
1159 default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON
1162 config HAVE_STD_PC_SERIAL_PORT
1166 bool "ARC console support"
1167 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1171 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1176 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1185 menu "CPU selection"
1191 config CPU_LOONGSON2E
1193 depends on SYS_HAS_CPU_LOONGSON2E
1194 select CPU_LOONGSON2
1196 The Loongson 2E processor implements the MIPS III instruction set
1197 with many extensions.
1199 It has an internal FPGA northbridge, which is compatible to
1202 config CPU_LOONGSON2F
1204 depends on SYS_HAS_CPU_LOONGSON2F
1205 select CPU_LOONGSON2
1207 select ARCH_REQUIRE_GPIOLIB
1209 The Loongson 2F processor implements the MIPS III instruction set
1210 with many extensions.
1212 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1213 have a similar programming interface with FPGA northbridge used in
1216 config CPU_LOONGSON1B
1218 depends on SYS_HAS_CPU_LOONGSON1B
1219 select CPU_LOONGSON1
1221 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1222 release 2 instruction set.
1224 config CPU_MIPS32_R1
1225 bool "MIPS32 Release 1"
1226 depends on SYS_HAS_CPU_MIPS32_R1
1227 select CPU_HAS_PREFETCH
1228 select CPU_SUPPORTS_32BIT_KERNEL
1229 select CPU_SUPPORTS_HIGHMEM
1231 Choose this option to build a kernel for release 1 or later of the
1232 MIPS32 architecture. Most modern embedded systems with a 32-bit
1233 MIPS processor are based on a MIPS32 processor. If you know the
1234 specific type of processor in your system, choose those that one
1235 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1236 Release 2 of the MIPS32 architecture is available since several
1237 years so chances are you even have a MIPS32 Release 2 processor
1238 in which case you should choose CPU_MIPS32_R2 instead for better
1241 config CPU_MIPS32_R2
1242 bool "MIPS32 Release 2"
1243 depends on SYS_HAS_CPU_MIPS32_R2
1244 select CPU_HAS_PREFETCH
1245 select CPU_SUPPORTS_32BIT_KERNEL
1246 select CPU_SUPPORTS_HIGHMEM
1248 Choose this option to build a kernel for release 2 or later of the
1249 MIPS32 architecture. Most modern embedded systems with a 32-bit
1250 MIPS processor are based on a MIPS32 processor. If you know the
1251 specific type of processor in your system, choose those that one
1252 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1254 config CPU_MIPS64_R1
1255 bool "MIPS64 Release 1"
1256 depends on SYS_HAS_CPU_MIPS64_R1
1257 select CPU_HAS_PREFETCH
1258 select CPU_SUPPORTS_32BIT_KERNEL
1259 select CPU_SUPPORTS_64BIT_KERNEL
1260 select CPU_SUPPORTS_HIGHMEM
1261 select CPU_SUPPORTS_HUGEPAGES
1263 Choose this option to build a kernel for release 1 or later of the
1264 MIPS64 architecture. Many modern embedded systems with a 64-bit
1265 MIPS processor are based on a MIPS64 processor. If you know the
1266 specific type of processor in your system, choose those that one
1267 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1268 Release 2 of the MIPS64 architecture is available since several
1269 years so chances are you even have a MIPS64 Release 2 processor
1270 in which case you should choose CPU_MIPS64_R2 instead for better
1273 config CPU_MIPS64_R2
1274 bool "MIPS64 Release 2"
1275 depends on SYS_HAS_CPU_MIPS64_R2
1276 select CPU_HAS_PREFETCH
1277 select CPU_SUPPORTS_32BIT_KERNEL
1278 select CPU_SUPPORTS_64BIT_KERNEL
1279 select CPU_SUPPORTS_HIGHMEM
1280 select CPU_SUPPORTS_HUGEPAGES
1282 Choose this option to build a kernel for release 2 or later of the
1283 MIPS64 architecture. Many modern embedded systems with a 64-bit
1284 MIPS processor are based on a MIPS64 processor. If you know the
1285 specific type of processor in your system, choose those that one
1286 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1290 depends on SYS_HAS_CPU_R3000
1292 select CPU_SUPPORTS_32BIT_KERNEL
1293 select CPU_SUPPORTS_HIGHMEM
1295 Please make sure to pick the right CPU type. Linux/MIPS is not
1296 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1297 *not* work on R4000 machines and vice versa. However, since most
1298 of the supported machines have an R4000 (or similar) CPU, R4x00
1299 might be a safe bet. If the resulting kernel does not work,
1300 try to recompile with R3000.
1304 depends on SYS_HAS_CPU_TX39XX
1305 select CPU_SUPPORTS_32BIT_KERNEL
1309 depends on SYS_HAS_CPU_VR41XX
1310 select CPU_SUPPORTS_32BIT_KERNEL
1311 select CPU_SUPPORTS_64BIT_KERNEL
1313 The options selects support for the NEC VR4100 series of processors.
1314 Only choose this option if you have one of these processors as a
1315 kernel built with this option will not run on any other type of
1316 processor or vice versa.
1320 depends on SYS_HAS_CPU_R4300
1321 select CPU_SUPPORTS_32BIT_KERNEL
1322 select CPU_SUPPORTS_64BIT_KERNEL
1324 MIPS Technologies R4300-series processors.
1328 depends on SYS_HAS_CPU_R4X00
1329 select CPU_SUPPORTS_32BIT_KERNEL
1330 select CPU_SUPPORTS_64BIT_KERNEL
1331 select CPU_SUPPORTS_HUGEPAGES
1333 MIPS Technologies R4000-series processors other than 4300, including
1334 the R4000, R4400, R4600, and 4700.
1338 depends on SYS_HAS_CPU_TX49XX
1339 select CPU_HAS_PREFETCH
1340 select CPU_SUPPORTS_32BIT_KERNEL
1341 select CPU_SUPPORTS_64BIT_KERNEL
1342 select CPU_SUPPORTS_HUGEPAGES
1346 depends on SYS_HAS_CPU_R5000
1347 select CPU_SUPPORTS_32BIT_KERNEL
1348 select CPU_SUPPORTS_64BIT_KERNEL
1349 select CPU_SUPPORTS_HUGEPAGES
1351 MIPS Technologies R5000-series processors other than the Nevada.
1355 depends on SYS_HAS_CPU_R5432
1356 select CPU_SUPPORTS_32BIT_KERNEL
1357 select CPU_SUPPORTS_64BIT_KERNEL
1358 select CPU_SUPPORTS_HUGEPAGES
1362 depends on SYS_HAS_CPU_R5500
1363 select CPU_SUPPORTS_32BIT_KERNEL
1364 select CPU_SUPPORTS_64BIT_KERNEL
1365 select CPU_SUPPORTS_HUGEPAGES
1367 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1372 depends on SYS_HAS_CPU_R6000
1373 select CPU_SUPPORTS_32BIT_KERNEL
1375 MIPS Technologies R6000 and R6000A series processors. Note these
1376 processors are extremely rare and the support for them is incomplete.
1380 depends on SYS_HAS_CPU_NEVADA
1381 select CPU_SUPPORTS_32BIT_KERNEL
1382 select CPU_SUPPORTS_64BIT_KERNEL
1383 select CPU_SUPPORTS_HUGEPAGES
1385 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1389 depends on SYS_HAS_CPU_R8000
1390 select CPU_HAS_PREFETCH
1391 select CPU_SUPPORTS_64BIT_KERNEL
1393 MIPS Technologies R8000 processors. Note these processors are
1394 uncommon and the support for them is incomplete.
1398 depends on SYS_HAS_CPU_R10000
1399 select CPU_HAS_PREFETCH
1400 select CPU_SUPPORTS_32BIT_KERNEL
1401 select CPU_SUPPORTS_64BIT_KERNEL
1402 select CPU_SUPPORTS_HIGHMEM
1403 select CPU_SUPPORTS_HUGEPAGES
1405 MIPS Technologies R10000-series processors.
1409 depends on SYS_HAS_CPU_RM7000
1410 select CPU_HAS_PREFETCH
1411 select CPU_SUPPORTS_32BIT_KERNEL
1412 select CPU_SUPPORTS_64BIT_KERNEL
1413 select CPU_SUPPORTS_HIGHMEM
1414 select CPU_SUPPORTS_HUGEPAGES
1418 depends on SYS_HAS_CPU_SB1
1419 select CPU_SUPPORTS_32BIT_KERNEL
1420 select CPU_SUPPORTS_64BIT_KERNEL
1421 select CPU_SUPPORTS_HIGHMEM
1422 select CPU_SUPPORTS_HUGEPAGES
1423 select WEAK_ORDERING
1425 config CPU_CAVIUM_OCTEON
1426 bool "Cavium Octeon processor"
1427 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1428 select ARCH_SPARSEMEM_ENABLE
1429 select CPU_HAS_PREFETCH
1430 select CPU_SUPPORTS_64BIT_KERNEL
1431 select SYS_SUPPORTS_SMP
1432 select NR_CPUS_DEFAULT_16
1433 select WEAK_ORDERING
1434 select CPU_SUPPORTS_HIGHMEM
1435 select CPU_SUPPORTS_HUGEPAGES
1438 select USB_EHCI_BIG_ENDIAN_MMIO
1440 The Cavium Octeon processor is a highly integrated chip containing
1441 many ethernet hardware widgets for networking tasks. The processor
1442 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1443 Full details can be found at http://www.caviumnetworks.com.
1445 config CPU_BMIPS3300
1447 depends on SYS_HAS_CPU_BMIPS3300
1450 Broadcom BMIPS3300 processors.
1452 config CPU_BMIPS4350
1454 depends on SYS_HAS_CPU_BMIPS4350
1456 select SYS_SUPPORTS_SMP
1457 select SYS_SUPPORTS_HOTPLUG_CPU
1459 Broadcom BMIPS4350 ("VIPER") processors.
1461 config CPU_BMIPS4380
1463 depends on SYS_HAS_CPU_BMIPS4380
1465 select SYS_SUPPORTS_SMP
1466 select SYS_SUPPORTS_HOTPLUG_CPU
1468 Broadcom BMIPS4380 processors.
1470 config CPU_BMIPS5000
1472 depends on SYS_HAS_CPU_BMIPS5000
1474 select CPU_SUPPORTS_HIGHMEM
1475 select MIPS_CPU_SCACHE
1476 select SYS_SUPPORTS_SMP
1477 select SYS_SUPPORTS_HOTPLUG_CPU
1479 Broadcom BMIPS5000 processors.
1482 bool "Netlogic XLR SoC"
1483 depends on SYS_HAS_CPU_XLR
1484 select CPU_SUPPORTS_32BIT_KERNEL
1485 select CPU_SUPPORTS_64BIT_KERNEL
1486 select CPU_SUPPORTS_HIGHMEM
1487 select CPU_SUPPORTS_HUGEPAGES
1488 select WEAK_ORDERING
1489 select WEAK_REORDERING_BEYOND_LLSC
1491 Netlogic Microsystems XLR/XLS processors.
1494 bool "Netlogic XLP SoC"
1495 depends on SYS_HAS_CPU_XLP
1496 select CPU_SUPPORTS_32BIT_KERNEL
1497 select CPU_SUPPORTS_64BIT_KERNEL
1498 select CPU_SUPPORTS_HIGHMEM
1499 select WEAK_ORDERING
1500 select WEAK_REORDERING_BEYOND_LLSC
1501 select CPU_HAS_PREFETCH
1504 Netlogic Microsystems XLP processors.
1508 config CPU_NOP_WORKAROUNDS
1511 config CPU_JUMP_WORKAROUNDS
1514 config CPU_LOONGSON2F_WORKAROUNDS
1515 bool "Loongson 2F Workarounds"
1517 select CPU_NOP_WORKAROUNDS
1518 select CPU_JUMP_WORKAROUNDS
1520 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1521 require workarounds. Without workarounds the system may hang
1522 unexpectedly. For more information please refer to the gas
1523 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1525 Loongson 2F03 and later have fixed these issues and no workarounds
1526 are needed. The workarounds have no significant side effect on them
1527 but may decrease the performance of the system so this option should
1528 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1531 If unsure, please say Y.
1532 endif # CPU_LOONGSON2F
1534 config SYS_SUPPORTS_ZBOOT
1536 select HAVE_KERNEL_GZIP
1537 select HAVE_KERNEL_BZIP2
1538 select HAVE_KERNEL_LZMA
1539 select HAVE_KERNEL_LZO
1541 config SYS_SUPPORTS_ZBOOT_UART16550
1543 select SYS_SUPPORTS_ZBOOT
1545 config CPU_LOONGSON2
1547 select CPU_SUPPORTS_32BIT_KERNEL
1548 select CPU_SUPPORTS_64BIT_KERNEL
1549 select CPU_SUPPORTS_HIGHMEM
1550 select CPU_SUPPORTS_HUGEPAGES
1552 config CPU_LOONGSON1
1556 select CPU_HAS_PREFETCH
1557 select CPU_SUPPORTS_32BIT_KERNEL
1558 select CPU_SUPPORTS_HIGHMEM
1563 select CPU_SUPPORTS_32BIT_KERNEL
1564 select DMA_NONCOHERENT
1566 select SWAP_IO_SPACE
1567 select WEAK_ORDERING
1569 config SYS_HAS_CPU_LOONGSON2E
1572 config SYS_HAS_CPU_LOONGSON2F
1574 select CPU_SUPPORTS_CPUFREQ
1575 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1576 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1578 config SYS_HAS_CPU_LOONGSON1B
1581 config SYS_HAS_CPU_MIPS32_R1
1584 config SYS_HAS_CPU_MIPS32_R2
1587 config SYS_HAS_CPU_MIPS64_R1
1590 config SYS_HAS_CPU_MIPS64_R2
1593 config SYS_HAS_CPU_R3000
1596 config SYS_HAS_CPU_TX39XX
1599 config SYS_HAS_CPU_VR41XX
1602 config SYS_HAS_CPU_R4300
1605 config SYS_HAS_CPU_R4X00
1608 config SYS_HAS_CPU_TX49XX
1611 config SYS_HAS_CPU_R5000
1614 config SYS_HAS_CPU_R5432
1617 config SYS_HAS_CPU_R5500
1620 config SYS_HAS_CPU_R6000
1623 config SYS_HAS_CPU_NEVADA
1626 config SYS_HAS_CPU_R8000
1629 config SYS_HAS_CPU_R10000
1632 config SYS_HAS_CPU_RM7000
1635 config SYS_HAS_CPU_SB1
1638 config SYS_HAS_CPU_CAVIUM_OCTEON
1641 config SYS_HAS_CPU_BMIPS3300
1644 config SYS_HAS_CPU_BMIPS4350
1647 config SYS_HAS_CPU_BMIPS4380
1650 config SYS_HAS_CPU_BMIPS5000
1653 config SYS_HAS_CPU_XLR
1656 config SYS_HAS_CPU_XLP
1660 # CPU may reorder R->R, R->W, W->R, W->W
1661 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1663 config WEAK_ORDERING
1667 # CPU may reorder reads and writes beyond LL/SC
1668 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1670 config WEAK_REORDERING_BEYOND_LLSC
1675 # These two indicate any level of the MIPS32 and MIPS64 architecture
1679 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1683 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1686 # These two indicate the revision of the architecture, either Release 1 or Release 2
1690 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1694 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1696 config SYS_SUPPORTS_32BIT_KERNEL
1698 config SYS_SUPPORTS_64BIT_KERNEL
1700 config CPU_SUPPORTS_32BIT_KERNEL
1702 config CPU_SUPPORTS_64BIT_KERNEL
1704 config CPU_SUPPORTS_CPUFREQ
1706 config CPU_SUPPORTS_ADDRWINCFG
1708 config CPU_SUPPORTS_HUGEPAGES
1710 config CPU_SUPPORTS_UNCACHED_ACCELERATED
1712 config MIPS_PGD_C0_CONTEXT
1714 default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
1717 # Set to y for ptrace access to watch registers.
1719 config HARDWARE_WATCHPOINTS
1721 default y if CPU_MIPSR1 || CPU_MIPSR2
1726 prompt "Kernel code model"
1728 You should only select this option if you have a workload that
1729 actually benefits from 64-bit processing or if your machine has
1730 large memory. You will only be presented a single option in this
1731 menu if your system does not support both 32-bit and 64-bit kernels.
1734 bool "32-bit kernel"
1735 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1738 Select this option if you want to build a 32-bit kernel.
1740 bool "64-bit kernel"
1741 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1743 Select this option if you want to build a 64-bit kernel.
1748 prompt "Kernel page size"
1749 default PAGE_SIZE_4KB
1751 config PAGE_SIZE_4KB
1753 depends on !CPU_LOONGSON2
1755 This option select the standard 4kB Linux page size. On some
1756 R3000-family processors this is the only available page size. Using
1757 4kB page size will minimize memory consumption and is therefore
1758 recommended for low memory systems.
1760 config PAGE_SIZE_8KB
1762 depends on CPU_R8000 || CPU_CAVIUM_OCTEON
1764 Using 8kB page size will result in higher performance kernel at
1765 the price of higher memory consumption. This option is available
1766 only on R8000 and cnMIPS processors. Note that you will need a
1767 suitable Linux distribution to support this.
1769 config PAGE_SIZE_16KB
1771 depends on !CPU_R3000 && !CPU_TX39XX
1773 Using 16kB page size will result in higher performance kernel at
1774 the price of higher memory consumption. This option is available on
1775 all non-R3000 family processors. Note that you will need a suitable
1776 Linux distribution to support this.
1778 config PAGE_SIZE_32KB
1780 depends on CPU_CAVIUM_OCTEON
1782 Using 32kB page size will result in higher performance kernel at
1783 the price of higher memory consumption. This option is available
1784 only on cnMIPS cores. Note that you will need a suitable Linux
1785 distribution to support this.
1787 config PAGE_SIZE_64KB
1789 depends on !CPU_R3000 && !CPU_TX39XX
1791 Using 64kB page size will result in higher performance kernel at
1792 the price of higher memory consumption. This option is available on
1793 all non-R3000 family processor. Not that at the time of this
1794 writing this option is still high experimental.
1798 config FORCE_MAX_ZONEORDER
1799 int "Maximum zone order"
1800 range 14 64 if HUGETLB_PAGE && PAGE_SIZE_64KB
1801 default "14" if HUGETLB_PAGE && PAGE_SIZE_64KB
1802 range 13 64 if HUGETLB_PAGE && PAGE_SIZE_32KB
1803 default "13" if HUGETLB_PAGE && PAGE_SIZE_32KB
1804 range 12 64 if HUGETLB_PAGE && PAGE_SIZE_16KB
1805 default "12" if HUGETLB_PAGE && PAGE_SIZE_16KB
1809 The kernel memory allocator divides physically contiguous memory
1810 blocks into "zones", where each zone is a power of two number of
1811 pages. This option selects the largest power of two that the kernel
1812 keeps in the memory allocator. If you need to allocate very large
1813 blocks of physically contiguous memory, then you may need to
1814 increase this value.
1816 This config option is actually maximum order plus one. For example,
1817 a value of 11 means that the largest free memory block is 2^10 pages.
1819 The page size is not necessarily 4KB. Keep this in mind
1820 when choosing a value for this option.
1825 config IP22_CPU_SCACHE
1830 # Support for a MIPS32 / MIPS64 style S-caches
1832 config MIPS_CPU_SCACHE
1836 config R5000_CPU_SCACHE
1840 config RM7000_CPU_SCACHE
1844 config SIBYTE_DMA_PAGEOPS
1845 bool "Use DMA to clear/copy pages"
1848 Instead of using the CPU to zero and copy pages, use a Data Mover
1849 channel. These DMA channels are otherwise unused by the standard
1850 SiByte Linux port. Seems to give a small performance benefit.
1852 config CPU_HAS_PREFETCH
1855 config CPU_GENERIC_DUMP_TLB
1857 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
1861 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1863 config CPU_R4K_CACHE_TLB
1865 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1868 prompt "MIPS MT options"
1870 config MIPS_MT_DISABLED
1871 bool "Disable multithreading support."
1873 Use this option if your workload can't take advantage of
1874 MIPS hardware multithreading support. On systems that don't have
1875 the option of an MT-enabled processor this option will be the only
1876 option in this menu.
1879 bool "Use 1 TC on each available VPE for SMP"
1880 depends on SYS_SUPPORTS_MULTITHREADING
1881 select CPU_MIPSR2_IRQ_VI
1882 select CPU_MIPSR2_IRQ_EI
1884 select NR_CPUS_DEFAULT_2
1886 select SYS_SUPPORTS_SCHED_SMT if SMP
1887 select SYS_SUPPORTS_SMP
1889 select MIPS_PERF_SHARED_TC_COUNTERS
1891 This is a kernel model which is known a VSMP but lately has been
1892 marketesed into SMVP.
1893 Virtual SMP uses the processor's VPEs to implement virtual
1894 processors. In currently available configuration of the 34K processor
1895 this allows for a dual processor. Both processors will share the same
1896 primary caches; each will obtain the half of the TLB for it's own
1897 exclusive use. For a layman this model can be described as similar to
1898 what Intel calls Hyperthreading.
1900 For further information see http://www.linux-mips.org/wiki/34K#VSMP
1903 bool "SMTC: Use all TCs on all VPEs for SMP"
1904 depends on CPU_MIPS32_R2
1905 #depends on CPU_MIPS64_R2 # once there is hardware ...
1906 depends on SYS_SUPPORTS_MULTITHREADING
1907 select CPU_MIPSR2_IRQ_VI
1908 select CPU_MIPSR2_IRQ_EI
1910 select NR_CPUS_DEFAULT_8
1912 select SYS_SUPPORTS_SMP
1915 This is a kernel model which is known a SMTC or lately has been
1916 marketesed into SMVP.
1917 is presenting the available TC's of the core as processors to Linux.
1918 On currently available 34K processors this means a Linux system will
1919 see up to 5 processors. The implementation of the SMTC kernel differs
1920 significantly from VSMP and cannot efficiently coexist in the same
1921 kernel binary so the choice between VSMP and SMTC is a compile time
1924 For further information see http://www.linux-mips.org/wiki/34K#SMTC
1932 bool "SMT (multithreading) scheduler support"
1933 depends on SYS_SUPPORTS_SCHED_SMT
1936 SMT scheduler support improves the CPU scheduler's decision making
1937 when dealing with MIPS MT enabled cores at a cost of slightly
1938 increased overhead in some places. If unsure say N here.
1940 config SYS_SUPPORTS_SCHED_SMT
1943 config SYS_SUPPORTS_MULTITHREADING
1946 config MIPS_MT_FPAFF
1947 bool "Dynamic FPU affinity for FP-intensive threads"
1949 depends on MIPS_MT_SMP || MIPS_MT_SMTC
1951 config MIPS_VPE_LOADER
1952 bool "VPE loader support."
1953 depends on SYS_SUPPORTS_MULTITHREADING
1954 select CPU_MIPSR2_IRQ_VI
1955 select CPU_MIPSR2_IRQ_EI
1958 Includes a loader for loading an elf relocatable object
1959 onto another VPE and running it.
1961 config MIPS_MT_SMTC_IM_BACKSTOP
1962 bool "Use per-TC register bits as backstop for inhibited IM bits"
1963 depends on MIPS_MT_SMTC
1966 To support multiple TC microthreads acting as "CPUs" within
1967 a VPE, VPE-wide interrupt mask bits must be specially manipulated
1968 during interrupt handling. To support legacy drivers and interrupt
1969 controller management code, SMTC has a "backstop" to track and
1970 if necessary restore the interrupt mask. This has some performance
1971 impact on interrupt service overhead.
1973 config MIPS_MT_SMTC_IRQAFF
1974 bool "Support IRQ affinity API"
1975 depends on MIPS_MT_SMTC
1978 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
1979 for SMTC Linux kernel. Requires platform support, of which
1980 an example can be found in the MIPS kernel i8259 and Malta
1981 platform code. Adds some overhead to interrupt dispatch, and
1982 should be used only if you know what you are doing.
1984 config MIPS_VPE_LOADER_TOM
1985 bool "Load VPE program into memory hidden from linux"
1986 depends on MIPS_VPE_LOADER
1989 The loader can use memory that is present but has been hidden from
1990 Linux using the kernel command line option "mem=xxMB". It's up to
1991 you to ensure the amount you put in the option and the space your
1992 program requires is less or equal to the amount physically present.
1994 # this should possibly be in drivers/char, but it is rather cpu related. Hmmm
1995 config MIPS_VPE_APSP_API
1996 bool "Enable support for AP/SP API (RTLX)"
1997 depends on MIPS_VPE_LOADER
2001 bool "MIPS CMP framework support"
2002 depends on SYS_SUPPORTS_MIPS_CMP
2004 select SYS_SUPPORTS_SMP
2005 select SYS_SUPPORTS_SCHED_SMT if SMP
2006 select WEAK_ORDERING
2009 This is a placeholder option for the GCMP work. It will need to
2010 be handled differently...
2012 config SB1_PASS_1_WORKAROUNDS
2014 depends on CPU_SB1_PASS_1
2017 config SB1_PASS_2_WORKAROUNDS
2019 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2022 config SB1_PASS_2_1_WORKAROUNDS
2024 depends on CPU_SB1 && CPU_SB1_PASS_2
2027 config 64BIT_PHYS_ADDR
2030 config ARCH_PHYS_ADDR_T_64BIT
2031 def_bool 64BIT_PHYS_ADDR
2033 config CPU_HAS_SMARTMIPS
2034 depends on SYS_SUPPORTS_SMARTMIPS
2035 bool "Support for the SmartMIPS ASE"
2037 SmartMIPS is a extension of the MIPS32 architecture aimed at
2038 increased security at both hardware and software level for
2039 smartcards. Enabling this option will allow proper use of the
2040 SmartMIPS instructions by Linux applications. However a kernel with
2041 this option will not work on a MIPS core without SmartMIPS core. If
2042 you don't know you probably don't have SmartMIPS and should say N
2052 # Vectored interrupt mode is an R2 feature
2054 config CPU_MIPSR2_IRQ_VI
2058 # Extended interrupt mode is an R2 feature
2060 config CPU_MIPSR2_IRQ_EI
2065 depends on !CPU_R3000
2071 config CPU_DADDI_WORKAROUNDS
2074 config CPU_R4000_WORKAROUNDS
2076 select CPU_R4400_WORKAROUNDS
2078 config CPU_R4400_WORKAROUNDS
2082 # - Highmem only makes sense for the 32-bit kernel.
2083 # - The current highmem code will only work properly on physically indexed
2084 # caches such as R3000, SB1, R7000 or those that look like they're virtually
2085 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2086 # moment we protect the user and offer the highmem option only on machines
2087 # where it's known to be safe. This will not offer highmem on a few systems
2088 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2089 # indexed CPUs but we're playing safe.
2090 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2091 # know they might have memory configurations that could make use of highmem
2095 bool "High Memory Support"
2096 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
2098 config CPU_SUPPORTS_HIGHMEM
2101 config SYS_SUPPORTS_HIGHMEM
2104 config SYS_SUPPORTS_SMARTMIPS
2107 config ARCH_FLATMEM_ENABLE
2109 depends on !NUMA && !CPU_LOONGSON2
2111 config ARCH_DISCONTIGMEM_ENABLE
2113 default y if SGI_IP27
2115 Say Y to support efficient handling of discontiguous physical memory,
2116 for architectures which are either NUMA (Non-Uniform Memory Access)
2117 or have huge holes in the physical address space for other reasons.
2118 See <file:Documentation/vm/numa> for more.
2120 config ARCH_SPARSEMEM_ENABLE
2122 select SPARSEMEM_STATIC
2126 depends on SYS_SUPPORTS_NUMA
2128 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2129 Access). This option improves performance on systems with more
2130 than two nodes; on two node systems it is generally better to
2131 leave it disabled; on single node systems disable this option
2134 config SYS_SUPPORTS_NUMA
2140 depends on NEED_MULTIPLE_NODES
2142 config HW_PERF_EVENTS
2143 bool "Enable hardware performance counter support for perf events"
2144 depends on PERF_EVENTS && !MIPS_MT_SMTC && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP)
2147 Enable hardware performance counter support for perf events. If
2148 disabled, perf events will use software events only.
2153 bool "Multi-Processing support"
2154 depends on SYS_SUPPORTS_SMP
2155 select USE_GENERIC_SMP_HELPERS
2157 This enables support for systems with more than one CPU. If you have
2158 a system with only one CPU, like most personal computers, say N. If
2159 you have a system with more than one CPU, say Y.
2161 If you say N here, the kernel will run on single and multiprocessor
2162 machines, but will use only one CPU of a multiprocessor machine. If
2163 you say Y here, the kernel will run on many, but not all,
2164 singleprocessor machines. On a singleprocessor machine, the kernel
2165 will run faster if you say N here.
2167 People using multiprocessor machines who say Y here should also say
2168 Y to "Enhanced Real Time Clock Support", below.
2170 See also the SMP-HOWTO available at
2171 <http://www.tldp.org/docs.html#howto>.
2173 If you don't know what to do here, say N.
2178 config SYS_SUPPORTS_MIPS_CMP
2181 config SYS_SUPPORTS_SMP
2184 config NR_CPUS_DEFAULT_1
2187 config NR_CPUS_DEFAULT_2
2190 config NR_CPUS_DEFAULT_4
2193 config NR_CPUS_DEFAULT_8
2196 config NR_CPUS_DEFAULT_16
2199 config NR_CPUS_DEFAULT_32
2202 config NR_CPUS_DEFAULT_64
2206 int "Maximum number of CPUs (2-64)"
2207 range 1 64 if NR_CPUS_DEFAULT_1
2209 default "1" if NR_CPUS_DEFAULT_1
2210 default "2" if NR_CPUS_DEFAULT_2
2211 default "4" if NR_CPUS_DEFAULT_4
2212 default "8" if NR_CPUS_DEFAULT_8
2213 default "16" if NR_CPUS_DEFAULT_16
2214 default "32" if NR_CPUS_DEFAULT_32
2215 default "64" if NR_CPUS_DEFAULT_64
2217 This allows you to specify the maximum number of CPUs which this
2218 kernel will support. The maximum supported value is 32 for 32-bit
2219 kernel and 64 for 64-bit kernels; the minimum value which makes
2220 sense is 1 for Qemu (useful only for kernel debugging purposes)
2221 and 2 for all others.
2223 This is purely to save memory - each supported CPU adds
2224 approximately eight kilobytes to the kernel image. For best
2225 performance should round up your number of processors to the next
2228 config MIPS_PERF_SHARED_TC_COUNTERS
2232 # Timer Interrupt Frequency Configuration
2236 prompt "Timer frequency"
2239 Allows the configuration of the timer frequency.
2242 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2245 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2248 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2251 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2254 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2257 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2260 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2264 config SYS_SUPPORTS_48HZ
2267 config SYS_SUPPORTS_100HZ
2270 config SYS_SUPPORTS_128HZ
2273 config SYS_SUPPORTS_250HZ
2276 config SYS_SUPPORTS_256HZ
2279 config SYS_SUPPORTS_1000HZ
2282 config SYS_SUPPORTS_1024HZ
2285 config SYS_SUPPORTS_ARBIT_HZ
2287 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2288 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2289 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2290 !SYS_SUPPORTS_1024HZ
2295 default 100 if HZ_100
2296 default 128 if HZ_128
2297 default 250 if HZ_250
2298 default 256 if HZ_256
2299 default 1000 if HZ_1000
2300 default 1024 if HZ_1024
2302 source "kernel/Kconfig.preempt"
2305 bool "Kexec system call"
2307 kexec is a system call that implements the ability to shutdown your
2308 current kernel, and to start another kernel. It is like a reboot
2309 but it is independent of the system firmware. And like a reboot
2310 you can start any kernel with it, not just Linux.
2312 The name comes from the similarity to the exec system call.
2314 It is an ongoing process to be certain the hardware in a machine
2315 is properly shutdown, so do not be surprised if this code does not
2316 initially work for you. It may help to enable device hotplugging
2317 support. As of this writing the exact hardware interface is
2318 strongly in flux, so no good recommendation can be made.
2321 bool "Kernel crash dumps"
2323 Generate crash dump after being started by kexec.
2324 This should be normally only set in special crash dump kernels
2325 which are loaded in the main kernel with kexec-tools into
2326 a specially reserved region and then later executed after
2327 a crash by kdump/kexec. The crash dump kernel must be compiled
2328 to a memory address not used by the main kernel or firmware using
2331 config PHYSICAL_START
2332 hex "Physical address where the kernel is loaded"
2333 default "0xffffffff84000000" if 64BIT
2334 default "0x84000000" if 32BIT
2335 depends on CRASH_DUMP
2337 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2338 If you plan to use kernel for capturing the crash dump change
2339 this value to start of the reserved region (the "X" value as
2340 specified in the "crashkernel=YM@XM" command line boot parameter
2341 passed to the panic-ed kernel).
2344 bool "Enable seccomp to safely compute untrusted bytecode"
2348 This kernel feature is useful for number crunching applications
2349 that may need to compute untrusted bytecode during their
2350 execution. By using pipes or other transports made available to
2351 the process as file descriptors supporting the read/write
2352 syscalls, it's possible to isolate those applications in
2353 their own address space using seccomp. Once seccomp is
2354 enabled via /proc/<pid>/seccomp, it cannot be disabled
2355 and the task is only allowed to execute a few safe syscalls
2356 defined by each seccomp mode.
2358 If unsure, say Y. Only embedded should say N here.
2363 select OF_EARLY_FLATTREE
2368 config LOCKDEP_SUPPORT
2372 config STACKTRACE_SUPPORT
2376 source "init/Kconfig"
2378 source "kernel/Kconfig.freezer"
2380 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2388 bool "Support for PCI controller"
2389 depends on HW_HAS_PCI
2391 select GENERIC_PCI_IOMAP
2392 select NO_GENERIC_PCI_IOPORT_MAP
2394 Find out whether you have a PCI motherboard. PCI is the name of a
2395 bus system, i.e. the way the CPU talks to the other stuff inside
2396 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2402 source "drivers/pci/Kconfig"
2404 source "drivers/pci/pcie/Kconfig"
2407 # ISA support is now enabled via select. Too many systems still have the one
2408 # or other ISA chip on the board that users don't know about so don't expect
2409 # users to choose the right thing ...
2416 depends on HW_HAS_EISA
2418 select GENERIC_ISA_DMA
2420 The Extended Industry Standard Architecture (EISA) bus was
2421 developed as an open alternative to the IBM MicroChannel bus.
2423 The EISA bus provided some of the features of the IBM MicroChannel
2424 bus while maintaining backward compatibility with cards made for
2425 the older ISA bus. The EISA bus saw limited use between 1988 and
2426 1995 when it was made obsolete by the PCI bus.
2428 Say Y here if you are building a kernel for an EISA-based machine.
2432 source "drivers/eisa/Kconfig"
2435 bool "TURBOchannel support"
2436 depends on MACH_DECSTATION
2438 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2439 processors. TURBOchannel programming specifications are available
2441 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2443 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2444 Linux driver support status is documented at:
2445 <http://www.linux-mips.org/wiki/DECstation>
2455 select MIPS_EXTERNAL_TIMER
2460 source "drivers/pcmcia/Kconfig"
2462 source "drivers/pci/hotplug/Kconfig"
2465 bool "RapidIO support"
2469 If you say Y here, the kernel will include drivers and
2470 infrastructure code to support RapidIO interconnect devices.
2472 source "drivers/rapidio/Kconfig"
2476 menu "Executable file formats"
2478 source "fs/Kconfig.binfmt"
2483 config MIPS32_COMPAT
2484 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2487 Select this option if you want Linux/MIPS 32-bit binary
2488 compatibility. Since all software available for Linux/MIPS is
2489 currently 32-bit you should say Y here.
2493 depends on MIPS32_COMPAT
2494 select ARCH_WANT_OLD_COMPAT_IPC
2497 config SYSVIPC_COMPAT
2499 depends on COMPAT && SYSVIPC
2503 bool "Kernel support for o32 binaries"
2504 depends on MIPS32_COMPAT
2506 Select this option if you want to run o32 binaries. These are pure
2507 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2508 existing binaries are in this format.
2513 bool "Kernel support for n32 binaries"
2514 depends on MIPS32_COMPAT
2516 Select this option if you want to run n32 binaries. These are
2517 64-bit binaries using 32-bit quantities for addressing and certain
2518 data that would normally be 64-bit. They are used in special
2525 default y if MIPS32_O32 || MIPS32_N32
2529 menu "Power management options"
2531 config ARCH_HIBERNATION_POSSIBLE
2533 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2535 config ARCH_SUSPEND_POSSIBLE
2537 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2539 source "kernel/power/Kconfig"
2543 config MIPS_EXTERNAL_TIMER
2546 if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
2547 menu "CPU Power Management"
2548 source "drivers/cpufreq/Kconfig"
2552 source "net/Kconfig"
2554 source "drivers/Kconfig"
2556 source "drivers/firmware/Kconfig"
2560 source "arch/mips/Kconfig.debug"
2562 source "security/Kconfig"
2564 source "crypto/Kconfig"
2566 source "lib/Kconfig"