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 GENERIC_IDLE_LOOP
38 select BUILDTIME_EXTABLE_SORT
39 select GENERIC_CLOCKEVENTS
40 select GENERIC_CMOS_UPDATE
41 select HAVE_MOD_ARCH_SPECIFIC
43 select MODULES_USE_ELF_REL if MODULES
44 select MODULES_USE_ELF_RELA if MODULES && 64BIT
45 select CLONE_BACKWARDS
47 menu "Machine selection"
57 bool "Alchemy processor based machines"
58 select 64BIT_PHYS_ADDR
62 select SYS_HAS_CPU_MIPS32_R1
63 select SYS_SUPPORTS_32BIT_KERNEL
64 select SYS_SUPPORTS_APM_EMULATION
66 select ARCH_WANT_OPTIONAL_GPIOLIB
67 select SYS_SUPPORTS_ZBOOT
68 select USB_ARCH_HAS_OHCI
69 select USB_ARCH_HAS_EHCI
72 bool "Texas Instruments AR7"
74 select DMA_NONCOHERENT
80 select SYS_HAS_CPU_MIPS32_R1
81 select SYS_HAS_EARLY_PRINTK
82 select SYS_SUPPORTS_32BIT_KERNEL
83 select SYS_SUPPORTS_LITTLE_ENDIAN
84 select SYS_SUPPORTS_ZBOOT_UART16550
85 select ARCH_REQUIRE_GPIOLIB
89 Support for the Texas Instruments AR7 System-on-a-Chip
90 family: TNETD7100, 7200 and 7300.
93 bool "Atheros AR71XX/AR724X/AR913X based boards"
94 select ARCH_REQUIRE_GPIOLIB
98 select DMA_NONCOHERENT
102 select SYS_HAS_CPU_MIPS32_R2
103 select SYS_HAS_EARLY_PRINTK
104 select SYS_SUPPORTS_32BIT_KERNEL
105 select SYS_SUPPORTS_BIG_ENDIAN
107 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
110 bool "Broadcom BCM47XX based boards"
111 select ARCH_WANT_OPTIONAL_GPIOLIB
115 select DMA_NONCOHERENT
119 select NO_EXCEPT_FILL
120 select SYS_SUPPORTS_32BIT_KERNEL
121 select SYS_SUPPORTS_LITTLE_ENDIAN
122 select SYS_HAS_EARLY_PRINTK
124 Support for BCM47XX based boards
127 bool "Broadcom BCM63XX based boards"
130 select DMA_NONCOHERENT
132 select SYS_HAS_CPU_MIPS32_R1
133 select SYS_SUPPORTS_32BIT_KERNEL
134 select SYS_SUPPORTS_BIG_ENDIAN
135 select SYS_HAS_EARLY_PRINTK
137 select ARCH_REQUIRE_GPIOLIB
140 Support for BCM63XX based boards
147 select DMA_NONCOHERENT
153 select PCI_GT64XXX_PCI0
155 select SYS_HAS_CPU_NEVADA
156 select SYS_HAS_EARLY_PRINTK
157 select SYS_SUPPORTS_32BIT_KERNEL
158 select SYS_SUPPORTS_64BIT_KERNEL
159 select SYS_SUPPORTS_LITTLE_ENDIAN
161 config MACH_DECSTATION
168 select CPU_DADDI_WORKAROUNDS if 64BIT
169 select CPU_R4000_WORKAROUNDS if 64BIT
170 select CPU_R4400_WORKAROUNDS if 64BIT
171 select DMA_NONCOHERENT
174 select SYS_HAS_CPU_R3000
175 select SYS_HAS_CPU_R4X00
176 select SYS_SUPPORTS_32BIT_KERNEL
177 select SYS_SUPPORTS_64BIT_KERNEL
178 select SYS_SUPPORTS_LITTLE_ENDIAN
179 select SYS_SUPPORTS_128HZ
180 select SYS_SUPPORTS_256HZ
181 select SYS_SUPPORTS_1024HZ
183 This enables support for DEC's MIPS based workstations. For details
184 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
185 DECstation porting pages on <http://decstation.unix-ag.org/>.
187 If you have one of the following DECstation Models you definitely
188 want to choose R4xx0 for the CPU Type:
195 otherwise choose R3000.
198 bool "Jazz family of machines"
201 select ARCH_MAY_HAVE_PC_FDC
204 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
205 select GENERIC_ISA_DMA
206 select HAVE_PCSPKR_PLATFORM
211 select SYS_HAS_CPU_R4X00
212 select SYS_SUPPORTS_32BIT_KERNEL
213 select SYS_SUPPORTS_64BIT_KERNEL
214 select SYS_SUPPORTS_100HZ
216 This a family of machines based on the MIPS R4030 chipset which was
217 used by several vendors to build RISC/os and Windows NT workstations.
218 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
219 Olivetti M700-10 workstations.
222 bool "Ingenic JZ4740 based machines"
223 select SYS_HAS_CPU_MIPS32_R1
224 select SYS_SUPPORTS_32BIT_KERNEL
225 select SYS_SUPPORTS_LITTLE_ENDIAN
226 select SYS_SUPPORTS_ZBOOT_UART16550
227 select DMA_NONCOHERENT
230 select ARCH_REQUIRE_GPIOLIB
231 select SYS_HAS_EARLY_PRINTK
234 select GENERIC_IRQ_CHIP
237 bool "Lantiq based platforms"
238 select DMA_NONCOHERENT
242 select SYS_HAS_CPU_MIPS32_R1
243 select SYS_HAS_CPU_MIPS32_R2
244 select SYS_SUPPORTS_BIG_ENDIAN
245 select SYS_SUPPORTS_32BIT_KERNEL
246 select SYS_SUPPORTS_MULTITHREADING
247 select SYS_HAS_EARLY_PRINTK
248 select ARCH_REQUIRE_GPIOLIB
251 select HAVE_MACH_CLKDEV
255 select PINCTRL_LANTIQ
258 bool "LASAT Networks platforms"
261 select DMA_NONCOHERENT
262 select SYS_HAS_EARLY_PRINTK
265 select PCI_GT64XXX_PCI0
267 select R5000_CPU_SCACHE
268 select SYS_HAS_CPU_R5000
269 select SYS_SUPPORTS_32BIT_KERNEL
270 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
271 select SYS_SUPPORTS_LITTLE_ENDIAN
274 bool "Loongson family of machines"
275 select SYS_SUPPORTS_ZBOOT
277 This enables the support of Loongson family of machines.
279 Loongson is a family of general-purpose MIPS-compatible CPUs.
280 developed at Institute of Computing Technology (ICT),
281 Chinese Academy of Sciences (CAS) in the People's Republic
282 of China. The chief architect is Professor Weiwu Hu.
284 config MACH_LOONGSON1
285 bool "Loongson 1 family of machines"
286 select SYS_SUPPORTS_ZBOOT
288 This enables support for the Loongson 1 based machines.
290 Loongson 1 is a family of 32-bit MIPS-compatible SoCs developed by
291 the ICT (Institute of Computing Technology) and the Chinese Academy
295 bool "MIPS Malta board"
296 select ARCH_MAY_HAVE_PC_FDC
302 select DMA_NONCOHERENT
303 select GENERIC_ISA_DMA
304 select HAVE_PCSPKR_PLATFORM
310 select MIPS_BOARDS_GEN
312 select MIPS_CPU_SCACHE
313 select PCI_GT64XXX_PCI0
316 select SYS_HAS_CPU_MIPS32_R1
317 select SYS_HAS_CPU_MIPS32_R2
318 select SYS_HAS_CPU_MIPS64_R1
319 select SYS_HAS_CPU_MIPS64_R2
320 select SYS_HAS_CPU_NEVADA
321 select SYS_HAS_CPU_RM7000
322 select SYS_HAS_EARLY_PRINTK
323 select SYS_SUPPORTS_32BIT_KERNEL
324 select SYS_SUPPORTS_64BIT_KERNEL
325 select SYS_SUPPORTS_BIG_ENDIAN
326 select SYS_SUPPORTS_LITTLE_ENDIAN
327 select SYS_SUPPORTS_MIPS_CMP
328 select SYS_SUPPORTS_MULTITHREADING
329 select SYS_SUPPORTS_SMARTMIPS
330 select SYS_SUPPORTS_ZBOOT
332 This enables support for the MIPS Technologies Malta evaluation
336 bool "MIPS SEAD3 board"
341 select CPU_MIPSR2_IRQ_VI
342 select CPU_MIPSR2_IRQ_EI
343 select DMA_NONCOHERENT
346 select MIPS_BOARDS_GEN
347 select MIPS_CPU_SCACHE
349 select SYS_HAS_CPU_MIPS32_R1
350 select SYS_HAS_CPU_MIPS32_R2
351 select SYS_HAS_CPU_MIPS64_R1
352 select SYS_HAS_EARLY_PRINTK
353 select SYS_SUPPORTS_32BIT_KERNEL
354 select SYS_SUPPORTS_64BIT_KERNEL
355 select SYS_SUPPORTS_BIG_ENDIAN
356 select SYS_SUPPORTS_LITTLE_ENDIAN
357 select SYS_SUPPORTS_SMARTMIPS
358 select USB_ARCH_HAS_EHCI
359 select USB_EHCI_BIG_ENDIAN_DESC
360 select USB_EHCI_BIG_ENDIAN_MMIO
363 This enables support for the MIPS Technologies SEAD3 evaluation
367 bool "NEC EMMA2RH Mark-eins board"
371 This enables support for the NEC Electronics Mark-eins boards.
374 bool "NEC VR4100 series based machines"
377 select SYS_HAS_CPU_VR41XX
378 select ARCH_REQUIRE_GPIOLIB
381 bool "NXP STB220 board"
384 Support for NXP Semiconductors STB220 Development Board.
391 Support for NXP Semiconductors STB225 Development Board.
394 bool "PMC-Sierra MSP chipsets"
397 select DMA_NONCOHERENT
399 select NO_EXCEPT_FILL
401 select SYS_HAS_CPU_MIPS32_R1
402 select SYS_HAS_CPU_MIPS32_R2
403 select SYS_SUPPORTS_32BIT_KERNEL
404 select SYS_SUPPORTS_BIG_ENDIAN
407 select SERIAL_8250_CONSOLE
409 This adds support for the PMC-Sierra family of Multi-Service
410 Processor System-On-A-Chips. These parts include a number
411 of integrated peripherals, interfaces and DSPs in addition to
412 a variety of MIPS cores.
418 select CPU_MIPSR2_IRQ_VI
419 select CPU_MIPSR2_IRQ_EI
421 select DMA_NONCOHERENT
423 select SYS_HAS_EARLY_PRINTK
424 select SYS_HAS_CPU_MIPS32_R2
425 select SYS_SUPPORTS_32BIT_KERNEL
426 select SYS_SUPPORTS_BIG_ENDIAN
427 select SYS_SUPPORTS_HIGHMEM
428 select USB_OHCI_LITTLE_ENDIAN
430 This enables support for the Cisco PowerTV Platform.
433 bool "Ralink based machines"
437 select DMA_NONCOHERENT
440 select SYS_HAS_CPU_MIPS32_R1
441 select SYS_HAS_CPU_MIPS32_R2
442 select SYS_SUPPORTS_32BIT_KERNEL
443 select SYS_SUPPORTS_LITTLE_ENDIAN
444 select SYS_HAS_EARLY_PRINTK
445 select HAVE_MACH_CLKDEV
449 bool "SGI IP22 (Indy/Indigo2)"
455 select DEFAULT_SGI_PARTITION
456 select DMA_NONCOHERENT
460 select IP22_CPU_SCACHE
462 select GENERIC_ISA_DMA_SUPPORT_BROKEN
464 select SGI_HAS_INDYDOG
470 select SYS_HAS_CPU_R4X00
471 select SYS_HAS_CPU_R5000
473 # Disable EARLY_PRINTK for now since it leads to overwritten prom
474 # memory during early boot on some machines.
476 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
477 # for a more details discussion
479 # select SYS_HAS_EARLY_PRINTK
480 select SYS_SUPPORTS_32BIT_KERNEL
481 select SYS_SUPPORTS_64BIT_KERNEL
482 select SYS_SUPPORTS_BIG_ENDIAN
484 This are the SGI Indy, Challenge S and Indigo2, as well as certain
485 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
486 that runs on these, say Y here.
489 bool "SGI IP27 (Origin200/2000)"
493 select DEFAULT_SGI_PARTITION
495 select SYS_HAS_EARLY_PRINTK
497 select NR_CPUS_DEFAULT_64
498 select SYS_HAS_CPU_R10000
499 select SYS_SUPPORTS_64BIT_KERNEL
500 select SYS_SUPPORTS_BIG_ENDIAN
501 select SYS_SUPPORTS_NUMA
502 select SYS_SUPPORTS_SMP
504 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
505 workstations. To compile a Linux kernel that runs on these, say Y
509 bool "SGI IP28 (Indigo2 R10k)"
515 select DEFAULT_SGI_PARTITION
516 select DMA_NONCOHERENT
517 select GENERIC_ISA_DMA_SUPPORT_BROKEN
523 select SGI_HAS_INDYDOG
529 select SYS_HAS_CPU_R10000
531 # Disable EARLY_PRINTK for now since it leads to overwritten prom
532 # memory during early boot on some machines.
534 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
535 # for a more details discussion
537 # select SYS_HAS_EARLY_PRINTK
538 select SYS_SUPPORTS_64BIT_KERNEL
539 select SYS_SUPPORTS_BIG_ENDIAN
541 This is the SGI Indigo2 with R10000 processor. To compile a Linux
542 kernel that runs on these, say Y here.
551 select DMA_NONCOHERENT
554 select R5000_CPU_SCACHE
555 select RM7000_CPU_SCACHE
556 select SYS_HAS_CPU_R5000
557 select SYS_HAS_CPU_R10000 if BROKEN
558 select SYS_HAS_CPU_RM7000
559 select SYS_HAS_CPU_NEVADA
560 select SYS_SUPPORTS_64BIT_KERNEL
561 select SYS_SUPPORTS_BIG_ENDIAN
563 If you want this kernel to run on SGI O2 workstation, say Y here.
566 bool "Sibyte BCM91120C-CRhine"
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"
579 select SIBYTE_BCM1120
581 select SYS_HAS_CPU_SB1
582 select SYS_SUPPORTS_BIG_ENDIAN
583 select SYS_SUPPORTS_LITTLE_ENDIAN
586 bool "Sibyte BCM91125C-CRhone"
589 select SIBYTE_BCM1125
591 select SYS_HAS_CPU_SB1
592 select SYS_SUPPORTS_BIG_ENDIAN
593 select SYS_SUPPORTS_HIGHMEM
594 select SYS_SUPPORTS_LITTLE_ENDIAN
597 bool "Sibyte BCM91125E-Rhone"
600 select SIBYTE_BCM1125H
602 select SYS_HAS_CPU_SB1
603 select SYS_SUPPORTS_BIG_ENDIAN
604 select SYS_SUPPORTS_LITTLE_ENDIAN
607 bool "Sibyte BCM91250A-SWARM"
610 select HAVE_PATA_PLATFORM
611 select NR_CPUS_DEFAULT_2
614 select SYS_HAS_CPU_SB1
615 select SYS_SUPPORTS_BIG_ENDIAN
616 select SYS_SUPPORTS_HIGHMEM
617 select SYS_SUPPORTS_LITTLE_ENDIAN
618 select ZONE_DMA32 if 64BIT
620 config SIBYTE_LITTLESUR
621 bool "Sibyte BCM91250C2-LittleSur"
624 select HAVE_PATA_PLATFORM
625 select NR_CPUS_DEFAULT_2
628 select SYS_HAS_CPU_SB1
629 select SYS_SUPPORTS_BIG_ENDIAN
630 select SYS_SUPPORTS_HIGHMEM
631 select SYS_SUPPORTS_LITTLE_ENDIAN
633 config SIBYTE_SENTOSA
634 bool "Sibyte BCM91250E-Sentosa"
637 select NR_CPUS_DEFAULT_2
640 select SYS_HAS_CPU_SB1
641 select SYS_SUPPORTS_BIG_ENDIAN
642 select SYS_SUPPORTS_LITTLE_ENDIAN
645 bool "Sibyte BCM91480B-BigSur"
648 select NR_CPUS_DEFAULT_4
649 select SIBYTE_BCM1x80
651 select SYS_HAS_CPU_SB1
652 select SYS_SUPPORTS_BIG_ENDIAN
653 select SYS_SUPPORTS_HIGHMEM
654 select SYS_SUPPORTS_LITTLE_ENDIAN
655 select ZONE_DMA32 if 64BIT
658 bool "SNI RM200/300/400"
659 select FW_ARC if CPU_LITTLE_ENDIAN
660 select FW_ARC32 if CPU_LITTLE_ENDIAN
661 select FW_SNIPROM if CPU_BIG_ENDIAN
662 select ARCH_MAY_HAVE_PC_FDC
666 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
667 select DMA_NONCOHERENT
668 select GENERIC_ISA_DMA
669 select HAVE_PCSPKR_PLATFORM
676 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
677 select SYS_HAS_CPU_R4X00
678 select SYS_HAS_CPU_R5000
679 select SYS_HAS_CPU_R10000
680 select R5000_CPU_SCACHE
681 select SYS_HAS_EARLY_PRINTK
682 select SYS_SUPPORTS_32BIT_KERNEL
683 select SYS_SUPPORTS_64BIT_KERNEL
684 select SYS_SUPPORTS_BIG_ENDIAN
685 select SYS_SUPPORTS_HIGHMEM
686 select SYS_SUPPORTS_LITTLE_ENDIAN
688 The SNI RM200/300/400 are MIPS-based machines manufactured by
689 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
690 Technology and now in turn merged with Fujitsu. Say Y here to
691 support this machine type.
694 bool "Toshiba TX39 series based machines"
697 bool "Toshiba TX49 series based machines"
699 config MIKROTIK_RB532
700 bool "Mikrotik RB532 boards"
703 select DMA_NONCOHERENT
706 select SYS_HAS_CPU_MIPS32_R1
707 select SYS_SUPPORTS_32BIT_KERNEL
708 select SYS_SUPPORTS_LITTLE_ENDIAN
711 select ARCH_REQUIRE_GPIOLIB
713 Support the Mikrotik(tm) RouterBoard 532 series,
714 based on the IDT RC32434 SoC.
717 bool "Wind River PPMC board"
722 select DMA_NONCOHERENT
724 select PCI_GT64XXX_PCI0
726 select SYS_HAS_CPU_MIPS32_R1
727 select SYS_HAS_CPU_MIPS32_R2
728 select SYS_HAS_CPU_MIPS64_R1
729 select SYS_HAS_CPU_NEVADA
730 select SYS_HAS_CPU_RM7000
731 select SYS_SUPPORTS_32BIT_KERNEL
732 select SYS_SUPPORTS_64BIT_KERNEL
733 select SYS_SUPPORTS_BIG_ENDIAN
734 select SYS_SUPPORTS_LITTLE_ENDIAN
736 This enables support for the Wind River MIPS32 4KC PPMC evaluation
737 board, which is based on GT64120 bridge chip.
739 config CAVIUM_OCTEON_SIMULATOR
740 bool "Cavium Networks Octeon Simulator"
742 select 64BIT_PHYS_ADDR
744 select SYS_SUPPORTS_64BIT_KERNEL
745 select SYS_SUPPORTS_BIG_ENDIAN
746 select SYS_SUPPORTS_HOTPLUG_CPU
747 select SYS_HAS_CPU_CAVIUM_OCTEON
750 The Octeon simulator is software performance model of the Cavium
751 Octeon Processor. It supports simulating Octeon processors on x86
754 config CAVIUM_OCTEON_REFERENCE_BOARD
755 bool "Cavium Networks Octeon reference board"
757 select 64BIT_PHYS_ADDR
759 select SYS_SUPPORTS_64BIT_KERNEL
760 select SYS_SUPPORTS_BIG_ENDIAN
762 select SYS_SUPPORTS_HOTPLUG_CPU
763 select SYS_HAS_EARLY_PRINTK
764 select SYS_HAS_CPU_CAVIUM_OCTEON
767 select ARCH_SUPPORTS_MSI
769 select USB_ARCH_HAS_OHCI
770 select USB_ARCH_HAS_EHCI
773 This option supports all of the Octeon reference boards from Cavium
774 Networks. It builds a kernel that dynamically determines the Octeon
775 CPU type and supports all known board reference implementations.
776 Some of the supported boards are:
783 Say Y here for most Octeon reference boards.
786 bool "Netlogic XLR/XLS based systems"
789 select SYS_HAS_CPU_XLR
790 select SYS_SUPPORTS_SMP
793 select SYS_SUPPORTS_32BIT_KERNEL
794 select SYS_SUPPORTS_64BIT_KERNEL
795 select 64BIT_PHYS_ADDR
796 select SYS_SUPPORTS_BIG_ENDIAN
797 select SYS_SUPPORTS_HIGHMEM
799 select NR_CPUS_DEFAULT_32
803 select ARCH_SUPPORTS_MSI
804 select ZONE_DMA32 if 64BIT
806 select SYS_HAS_EARLY_PRINTK
807 select USB_ARCH_HAS_OHCI if USB_SUPPORT
808 select USB_ARCH_HAS_EHCI if USB_SUPPORT
810 Support for systems based on Netlogic XLR and XLS processors.
811 Say Y here if you have a XLR or XLS based board.
814 bool "Netlogic XLP based systems"
817 select SYS_HAS_CPU_XLP
818 select SYS_SUPPORTS_SMP
820 select SYS_SUPPORTS_32BIT_KERNEL
821 select SYS_SUPPORTS_64BIT_KERNEL
822 select 64BIT_PHYS_ADDR
823 select SYS_SUPPORTS_BIG_ENDIAN
824 select SYS_SUPPORTS_LITTLE_ENDIAN
825 select SYS_SUPPORTS_HIGHMEM
827 select NR_CPUS_DEFAULT_32
831 select ZONE_DMA32 if 64BIT
833 select SYS_HAS_EARLY_PRINTK
836 This board is based on Netlogic XLP Processor.
837 Say Y here if you have a XLP based board.
841 source "arch/mips/alchemy/Kconfig"
842 source "arch/mips/ath79/Kconfig"
843 source "arch/mips/bcm47xx/Kconfig"
844 source "arch/mips/bcm63xx/Kconfig"
845 source "arch/mips/jazz/Kconfig"
846 source "arch/mips/jz4740/Kconfig"
847 source "arch/mips/lantiq/Kconfig"
848 source "arch/mips/lasat/Kconfig"
849 source "arch/mips/pmcs-msp71xx/Kconfig"
850 source "arch/mips/powertv/Kconfig"
851 source "arch/mips/ralink/Kconfig"
852 source "arch/mips/sgi-ip27/Kconfig"
853 source "arch/mips/sibyte/Kconfig"
854 source "arch/mips/txx9/Kconfig"
855 source "arch/mips/vr41xx/Kconfig"
856 source "arch/mips/cavium-octeon/Kconfig"
857 source "arch/mips/loongson/Kconfig"
858 source "arch/mips/loongson1/Kconfig"
859 source "arch/mips/netlogic/Kconfig"
863 config RWSEM_GENERIC_SPINLOCK
867 config RWSEM_XCHGADD_ALGORITHM
870 config ARCH_HAS_ILOG2_U32
874 config ARCH_HAS_ILOG2_U64
878 config GENERIC_HWEIGHT
882 config GENERIC_CALIBRATE_DELAY
886 config SCHED_OMIT_FRAME_POINTER
891 # Select some configuration options automatically based on user selections.
896 config ARCH_MAY_HAVE_PC_FDC
940 select ARCH_REQUIRE_GPIOLIB
946 config ARCH_DMA_ADDR_T_64BIT
947 def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT
952 config DMA_NONCOHERENT
954 select NEED_DMA_MAP_STATE
956 config NEED_DMA_MAP_STATE
959 config SYS_HAS_EARLY_PRINTK
963 bool "Support for hot-pluggable CPUs"
964 depends on SMP && HOTPLUG && SYS_SUPPORTS_HOTPLUG_CPU
966 Say Y here to allow turning CPUs off and on. CPUs can be
967 controlled through /sys/devices/system/cpu.
968 (Note: power management support will enable this option
969 automatically on SMP systems. )
970 Say N if you want to disable CPU hotplug.
972 config SYS_SUPPORTS_HOTPLUG_CPU
987 config MIPS_DISABLE_OBSOLETE_IDE
999 config GENERIC_ISA_DMA
1001 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1004 config GENERIC_ISA_DMA_SUPPORT_BROKEN
1006 select GENERIC_ISA_DMA
1014 config HOLES_IN_ZONE
1018 # Endianness selection. Sufficiently obscure so many users don't know what to
1019 # answer,so we try hard to limit the available choices. Also the use of a
1020 # choice statement should be more obvious to the user.
1023 prompt "Endianness selection"
1025 Some MIPS machines can be configured for either little or big endian
1026 byte order. These modes require different kernels and a different
1027 Linux distribution. In general there is one preferred byteorder for a
1028 particular system but some systems are just as commonly used in the
1029 one or the other endianness.
1031 config CPU_BIG_ENDIAN
1033 depends on SYS_SUPPORTS_BIG_ENDIAN
1035 config CPU_LITTLE_ENDIAN
1036 bool "Little endian"
1037 depends on SYS_SUPPORTS_LITTLE_ENDIAN
1045 config SYS_SUPPORTS_APM_EMULATION
1048 config SYS_SUPPORTS_BIG_ENDIAN
1051 config SYS_SUPPORTS_LITTLE_ENDIAN
1054 config SYS_SUPPORTS_HUGETLBFS
1056 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1059 config MIPS_HUGE_TLB_SUPPORT
1060 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1083 config MIPS_BOARDS_GEN
1086 config PCI_GT64XXX_PCI0
1089 config NO_EXCEPT_FILL
1096 select DMA_NONCOHERENT
1098 select SWAP_IO_SPACE
1099 select SYS_HAS_CPU_R5500
1100 select SYS_SUPPORTS_32BIT_KERNEL
1101 select SYS_SUPPORTS_64BIT_KERNEL
1102 select SYS_SUPPORTS_BIG_ENDIAN
1109 select DMA_NONCOHERENT
1110 select SYS_HAS_CPU_MIPS32_R2
1111 select SYS_SUPPORTS_32BIT_KERNEL
1112 select SYS_SUPPORTS_LITTLE_ENDIAN
1113 select SYS_SUPPORTS_BIG_ENDIAN
1115 select CPU_MIPSR2_IRQ_VI
1121 config SWAP_IO_SPACE
1124 config SGI_HAS_INDYDOG
1136 config SGI_HAS_ZILOG
1139 config SGI_HAS_I8042
1142 config DEFAULT_SGI_PARTITION
1154 config MIPS_L1_CACHE_SHIFT
1156 default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL
1157 default "6" if MIPS_CPU_SCACHE
1158 default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON
1161 config HAVE_STD_PC_SERIAL_PORT
1165 bool "ARC console support"
1166 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1170 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1175 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1184 menu "CPU selection"
1190 config CPU_LOONGSON2E
1192 depends on SYS_HAS_CPU_LOONGSON2E
1193 select CPU_LOONGSON2
1195 The Loongson 2E processor implements the MIPS III instruction set
1196 with many extensions.
1198 It has an internal FPGA northbridge, which is compatible to
1201 config CPU_LOONGSON2F
1203 depends on SYS_HAS_CPU_LOONGSON2F
1204 select CPU_LOONGSON2
1206 select ARCH_REQUIRE_GPIOLIB
1208 The Loongson 2F processor implements the MIPS III instruction set
1209 with many extensions.
1211 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1212 have a similar programming interface with FPGA northbridge used in
1215 config CPU_LOONGSON1B
1217 depends on SYS_HAS_CPU_LOONGSON1B
1218 select CPU_LOONGSON1
1220 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1221 release 2 instruction set.
1223 config CPU_MIPS32_R1
1224 bool "MIPS32 Release 1"
1225 depends on SYS_HAS_CPU_MIPS32_R1
1226 select CPU_HAS_PREFETCH
1227 select CPU_SUPPORTS_32BIT_KERNEL
1228 select CPU_SUPPORTS_HIGHMEM
1230 Choose this option to build a kernel for release 1 or later of the
1231 MIPS32 architecture. Most modern embedded systems with a 32-bit
1232 MIPS processor are based on a MIPS32 processor. If you know the
1233 specific type of processor in your system, choose those that one
1234 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1235 Release 2 of the MIPS32 architecture is available since several
1236 years so chances are you even have a MIPS32 Release 2 processor
1237 in which case you should choose CPU_MIPS32_R2 instead for better
1240 config CPU_MIPS32_R2
1241 bool "MIPS32 Release 2"
1242 depends on SYS_HAS_CPU_MIPS32_R2
1243 select CPU_HAS_PREFETCH
1244 select CPU_SUPPORTS_32BIT_KERNEL
1245 select CPU_SUPPORTS_HIGHMEM
1247 Choose this option to build a kernel for release 2 or later of the
1248 MIPS32 architecture. Most modern embedded systems with a 32-bit
1249 MIPS processor are based on a MIPS32 processor. If you know the
1250 specific type of processor in your system, choose those that one
1251 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1253 config CPU_MIPS64_R1
1254 bool "MIPS64 Release 1"
1255 depends on SYS_HAS_CPU_MIPS64_R1
1256 select CPU_HAS_PREFETCH
1257 select CPU_SUPPORTS_32BIT_KERNEL
1258 select CPU_SUPPORTS_64BIT_KERNEL
1259 select CPU_SUPPORTS_HIGHMEM
1260 select CPU_SUPPORTS_HUGEPAGES
1262 Choose this option to build a kernel for release 1 or later of the
1263 MIPS64 architecture. Many modern embedded systems with a 64-bit
1264 MIPS processor are based on a MIPS64 processor. If you know the
1265 specific type of processor in your system, choose those that one
1266 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1267 Release 2 of the MIPS64 architecture is available since several
1268 years so chances are you even have a MIPS64 Release 2 processor
1269 in which case you should choose CPU_MIPS64_R2 instead for better
1272 config CPU_MIPS64_R2
1273 bool "MIPS64 Release 2"
1274 depends on SYS_HAS_CPU_MIPS64_R2
1275 select CPU_HAS_PREFETCH
1276 select CPU_SUPPORTS_32BIT_KERNEL
1277 select CPU_SUPPORTS_64BIT_KERNEL
1278 select CPU_SUPPORTS_HIGHMEM
1279 select CPU_SUPPORTS_HUGEPAGES
1281 Choose this option to build a kernel for release 2 or later of the
1282 MIPS64 architecture. Many modern embedded systems with a 64-bit
1283 MIPS processor are based on a MIPS64 processor. If you know the
1284 specific type of processor in your system, choose those that one
1285 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1289 depends on SYS_HAS_CPU_R3000
1291 select CPU_SUPPORTS_32BIT_KERNEL
1292 select CPU_SUPPORTS_HIGHMEM
1294 Please make sure to pick the right CPU type. Linux/MIPS is not
1295 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1296 *not* work on R4000 machines and vice versa. However, since most
1297 of the supported machines have an R4000 (or similar) CPU, R4x00
1298 might be a safe bet. If the resulting kernel does not work,
1299 try to recompile with R3000.
1303 depends on SYS_HAS_CPU_TX39XX
1304 select CPU_SUPPORTS_32BIT_KERNEL
1308 depends on SYS_HAS_CPU_VR41XX
1309 select CPU_SUPPORTS_32BIT_KERNEL
1310 select CPU_SUPPORTS_64BIT_KERNEL
1312 The options selects support for the NEC VR4100 series of processors.
1313 Only choose this option if you have one of these processors as a
1314 kernel built with this option will not run on any other type of
1315 processor or vice versa.
1319 depends on SYS_HAS_CPU_R4300
1320 select CPU_SUPPORTS_32BIT_KERNEL
1321 select CPU_SUPPORTS_64BIT_KERNEL
1323 MIPS Technologies R4300-series processors.
1327 depends on SYS_HAS_CPU_R4X00
1328 select CPU_SUPPORTS_32BIT_KERNEL
1329 select CPU_SUPPORTS_64BIT_KERNEL
1330 select CPU_SUPPORTS_HUGEPAGES
1332 MIPS Technologies R4000-series processors other than 4300, including
1333 the R4000, R4400, R4600, and 4700.
1337 depends on SYS_HAS_CPU_TX49XX
1338 select CPU_HAS_PREFETCH
1339 select CPU_SUPPORTS_32BIT_KERNEL
1340 select CPU_SUPPORTS_64BIT_KERNEL
1341 select CPU_SUPPORTS_HUGEPAGES
1345 depends on SYS_HAS_CPU_R5000
1346 select CPU_SUPPORTS_32BIT_KERNEL
1347 select CPU_SUPPORTS_64BIT_KERNEL
1348 select CPU_SUPPORTS_HUGEPAGES
1350 MIPS Technologies R5000-series processors other than the Nevada.
1354 depends on SYS_HAS_CPU_R5432
1355 select CPU_SUPPORTS_32BIT_KERNEL
1356 select CPU_SUPPORTS_64BIT_KERNEL
1357 select CPU_SUPPORTS_HUGEPAGES
1361 depends on SYS_HAS_CPU_R5500
1362 select CPU_SUPPORTS_32BIT_KERNEL
1363 select CPU_SUPPORTS_64BIT_KERNEL
1364 select CPU_SUPPORTS_HUGEPAGES
1366 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1371 depends on SYS_HAS_CPU_R6000
1372 select CPU_SUPPORTS_32BIT_KERNEL
1374 MIPS Technologies R6000 and R6000A series processors. Note these
1375 processors are extremely rare and the support for them is incomplete.
1379 depends on SYS_HAS_CPU_NEVADA
1380 select CPU_SUPPORTS_32BIT_KERNEL
1381 select CPU_SUPPORTS_64BIT_KERNEL
1382 select CPU_SUPPORTS_HUGEPAGES
1384 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1388 depends on SYS_HAS_CPU_R8000
1389 select CPU_HAS_PREFETCH
1390 select CPU_SUPPORTS_64BIT_KERNEL
1392 MIPS Technologies R8000 processors. Note these processors are
1393 uncommon and the support for them is incomplete.
1397 depends on SYS_HAS_CPU_R10000
1398 select CPU_HAS_PREFETCH
1399 select CPU_SUPPORTS_32BIT_KERNEL
1400 select CPU_SUPPORTS_64BIT_KERNEL
1401 select CPU_SUPPORTS_HIGHMEM
1402 select CPU_SUPPORTS_HUGEPAGES
1404 MIPS Technologies R10000-series processors.
1408 depends on SYS_HAS_CPU_RM7000
1409 select CPU_HAS_PREFETCH
1410 select CPU_SUPPORTS_32BIT_KERNEL
1411 select CPU_SUPPORTS_64BIT_KERNEL
1412 select CPU_SUPPORTS_HIGHMEM
1413 select CPU_SUPPORTS_HUGEPAGES
1417 depends on SYS_HAS_CPU_SB1
1418 select CPU_SUPPORTS_32BIT_KERNEL
1419 select CPU_SUPPORTS_64BIT_KERNEL
1420 select CPU_SUPPORTS_HIGHMEM
1421 select CPU_SUPPORTS_HUGEPAGES
1422 select WEAK_ORDERING
1424 config CPU_CAVIUM_OCTEON
1425 bool "Cavium Octeon processor"
1426 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1427 select ARCH_SPARSEMEM_ENABLE
1428 select CPU_HAS_PREFETCH
1429 select CPU_SUPPORTS_64BIT_KERNEL
1430 select SYS_SUPPORTS_SMP
1431 select NR_CPUS_DEFAULT_16
1432 select WEAK_ORDERING
1433 select CPU_SUPPORTS_HIGHMEM
1434 select CPU_SUPPORTS_HUGEPAGES
1438 The Cavium Octeon processor is a highly integrated chip containing
1439 many ethernet hardware widgets for networking tasks. The processor
1440 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1441 Full details can be found at http://www.caviumnetworks.com.
1443 config CPU_BMIPS3300
1445 depends on SYS_HAS_CPU_BMIPS3300
1448 Broadcom BMIPS3300 processors.
1450 config CPU_BMIPS4350
1452 depends on SYS_HAS_CPU_BMIPS4350
1454 select SYS_SUPPORTS_SMP
1455 select SYS_SUPPORTS_HOTPLUG_CPU
1457 Broadcom BMIPS4350 ("VIPER") processors.
1459 config CPU_BMIPS4380
1461 depends on SYS_HAS_CPU_BMIPS4380
1463 select SYS_SUPPORTS_SMP
1464 select SYS_SUPPORTS_HOTPLUG_CPU
1466 Broadcom BMIPS4380 processors.
1468 config CPU_BMIPS5000
1470 depends on SYS_HAS_CPU_BMIPS5000
1472 select CPU_SUPPORTS_HIGHMEM
1473 select MIPS_CPU_SCACHE
1474 select SYS_SUPPORTS_SMP
1475 select SYS_SUPPORTS_HOTPLUG_CPU
1477 Broadcom BMIPS5000 processors.
1480 bool "Netlogic XLR SoC"
1481 depends on SYS_HAS_CPU_XLR
1482 select CPU_SUPPORTS_32BIT_KERNEL
1483 select CPU_SUPPORTS_64BIT_KERNEL
1484 select CPU_SUPPORTS_HIGHMEM
1485 select CPU_SUPPORTS_HUGEPAGES
1486 select WEAK_ORDERING
1487 select WEAK_REORDERING_BEYOND_LLSC
1489 Netlogic Microsystems XLR/XLS processors.
1492 bool "Netlogic XLP SoC"
1493 depends on SYS_HAS_CPU_XLP
1494 select CPU_SUPPORTS_32BIT_KERNEL
1495 select CPU_SUPPORTS_64BIT_KERNEL
1496 select CPU_SUPPORTS_HIGHMEM
1497 select WEAK_ORDERING
1498 select WEAK_REORDERING_BEYOND_LLSC
1499 select CPU_HAS_PREFETCH
1502 Netlogic Microsystems XLP processors.
1506 config CPU_NOP_WORKAROUNDS
1509 config CPU_JUMP_WORKAROUNDS
1512 config CPU_LOONGSON2F_WORKAROUNDS
1513 bool "Loongson 2F Workarounds"
1515 select CPU_NOP_WORKAROUNDS
1516 select CPU_JUMP_WORKAROUNDS
1518 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1519 require workarounds. Without workarounds the system may hang
1520 unexpectedly. For more information please refer to the gas
1521 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1523 Loongson 2F03 and later have fixed these issues and no workarounds
1524 are needed. The workarounds have no significant side effect on them
1525 but may decrease the performance of the system so this option should
1526 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1529 If unsure, please say Y.
1530 endif # CPU_LOONGSON2F
1532 config SYS_SUPPORTS_ZBOOT
1534 select HAVE_KERNEL_GZIP
1535 select HAVE_KERNEL_BZIP2
1536 select HAVE_KERNEL_LZMA
1537 select HAVE_KERNEL_LZO
1539 config SYS_SUPPORTS_ZBOOT_UART16550
1541 select SYS_SUPPORTS_ZBOOT
1543 config CPU_LOONGSON2
1545 select CPU_SUPPORTS_32BIT_KERNEL
1546 select CPU_SUPPORTS_64BIT_KERNEL
1547 select CPU_SUPPORTS_HIGHMEM
1548 select CPU_SUPPORTS_HUGEPAGES
1550 config CPU_LOONGSON1
1554 select CPU_HAS_PREFETCH
1555 select CPU_SUPPORTS_32BIT_KERNEL
1556 select CPU_SUPPORTS_HIGHMEM
1561 select CPU_SUPPORTS_32BIT_KERNEL
1562 select DMA_NONCOHERENT
1564 select SWAP_IO_SPACE
1565 select WEAK_ORDERING
1567 config SYS_HAS_CPU_LOONGSON2E
1570 config SYS_HAS_CPU_LOONGSON2F
1572 select CPU_SUPPORTS_CPUFREQ
1573 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1574 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1576 config SYS_HAS_CPU_LOONGSON1B
1579 config SYS_HAS_CPU_MIPS32_R1
1582 config SYS_HAS_CPU_MIPS32_R2
1585 config SYS_HAS_CPU_MIPS64_R1
1588 config SYS_HAS_CPU_MIPS64_R2
1591 config SYS_HAS_CPU_R3000
1594 config SYS_HAS_CPU_TX39XX
1597 config SYS_HAS_CPU_VR41XX
1600 config SYS_HAS_CPU_R4300
1603 config SYS_HAS_CPU_R4X00
1606 config SYS_HAS_CPU_TX49XX
1609 config SYS_HAS_CPU_R5000
1612 config SYS_HAS_CPU_R5432
1615 config SYS_HAS_CPU_R5500
1618 config SYS_HAS_CPU_R6000
1621 config SYS_HAS_CPU_NEVADA
1624 config SYS_HAS_CPU_R8000
1627 config SYS_HAS_CPU_R10000
1630 config SYS_HAS_CPU_RM7000
1633 config SYS_HAS_CPU_SB1
1636 config SYS_HAS_CPU_CAVIUM_OCTEON
1639 config SYS_HAS_CPU_BMIPS3300
1642 config SYS_HAS_CPU_BMIPS4350
1645 config SYS_HAS_CPU_BMIPS4380
1648 config SYS_HAS_CPU_BMIPS5000
1651 config SYS_HAS_CPU_XLR
1654 config SYS_HAS_CPU_XLP
1658 # CPU may reorder R->R, R->W, W->R, W->W
1659 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1661 config WEAK_ORDERING
1665 # CPU may reorder reads and writes beyond LL/SC
1666 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1668 config WEAK_REORDERING_BEYOND_LLSC
1673 # These two indicate any level of the MIPS32 and MIPS64 architecture
1677 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1681 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1684 # These two indicate the revision of the architecture, either Release 1 or Release 2
1688 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1692 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1694 config SYS_SUPPORTS_32BIT_KERNEL
1696 config SYS_SUPPORTS_64BIT_KERNEL
1698 config CPU_SUPPORTS_32BIT_KERNEL
1700 config CPU_SUPPORTS_64BIT_KERNEL
1702 config CPU_SUPPORTS_CPUFREQ
1704 config CPU_SUPPORTS_ADDRWINCFG
1706 config CPU_SUPPORTS_HUGEPAGES
1708 config CPU_SUPPORTS_UNCACHED_ACCELERATED
1710 config MIPS_PGD_C0_CONTEXT
1712 default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
1715 # Set to y for ptrace access to watch registers.
1717 config HARDWARE_WATCHPOINTS
1719 default y if CPU_MIPSR1 || CPU_MIPSR2
1724 prompt "Kernel code model"
1726 You should only select this option if you have a workload that
1727 actually benefits from 64-bit processing or if your machine has
1728 large memory. You will only be presented a single option in this
1729 menu if your system does not support both 32-bit and 64-bit kernels.
1732 bool "32-bit kernel"
1733 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1736 Select this option if you want to build a 32-bit kernel.
1738 bool "64-bit kernel"
1739 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1740 select HAVE_SYSCALL_WRAPPERS
1742 Select this option if you want to build a 64-bit kernel.
1747 prompt "Kernel page size"
1748 default PAGE_SIZE_4KB
1750 config PAGE_SIZE_4KB
1752 depends on !CPU_LOONGSON2
1754 This option select the standard 4kB Linux page size. On some
1755 R3000-family processors this is the only available page size. Using
1756 4kB page size will minimize memory consumption and is therefore
1757 recommended for low memory systems.
1759 config PAGE_SIZE_8KB
1761 depends on CPU_R8000 || CPU_CAVIUM_OCTEON
1763 Using 8kB page size will result in higher performance kernel at
1764 the price of higher memory consumption. This option is available
1765 only on R8000 and cnMIPS processors. Note that you will need a
1766 suitable Linux distribution to support this.
1768 config PAGE_SIZE_16KB
1770 depends on !CPU_R3000 && !CPU_TX39XX
1772 Using 16kB page size will result in higher performance kernel at
1773 the price of higher memory consumption. This option is available on
1774 all non-R3000 family processors. Note that you will need a suitable
1775 Linux distribution to support this.
1777 config PAGE_SIZE_32KB
1779 depends on CPU_CAVIUM_OCTEON
1781 Using 32kB page size will result in higher performance kernel at
1782 the price of higher memory consumption. This option is available
1783 only on cnMIPS cores. Note that you will need a suitable Linux
1784 distribution to support this.
1786 config PAGE_SIZE_64KB
1788 depends on !CPU_R3000 && !CPU_TX39XX
1790 Using 64kB page size will result in higher performance kernel at
1791 the price of higher memory consumption. This option is available on
1792 all non-R3000 family processor. Not that at the time of this
1793 writing this option is still high experimental.
1797 config FORCE_MAX_ZONEORDER
1798 int "Maximum zone order"
1799 range 14 64 if HUGETLB_PAGE && PAGE_SIZE_64KB
1800 default "14" if HUGETLB_PAGE && PAGE_SIZE_64KB
1801 range 13 64 if HUGETLB_PAGE && PAGE_SIZE_32KB
1802 default "13" if HUGETLB_PAGE && PAGE_SIZE_32KB
1803 range 12 64 if HUGETLB_PAGE && PAGE_SIZE_16KB
1804 default "12" if HUGETLB_PAGE && PAGE_SIZE_16KB
1808 The kernel memory allocator divides physically contiguous memory
1809 blocks into "zones", where each zone is a power of two number of
1810 pages. This option selects the largest power of two that the kernel
1811 keeps in the memory allocator. If you need to allocate very large
1812 blocks of physically contiguous memory, then you may need to
1813 increase this value.
1815 This config option is actually maximum order plus one. For example,
1816 a value of 11 means that the largest free memory block is 2^10 pages.
1818 The page size is not necessarily 4KB. Keep this in mind
1819 when choosing a value for this option.
1824 config IP22_CPU_SCACHE
1829 # Support for a MIPS32 / MIPS64 style S-caches
1831 config MIPS_CPU_SCACHE
1835 config R5000_CPU_SCACHE
1839 config RM7000_CPU_SCACHE
1843 config SIBYTE_DMA_PAGEOPS
1844 bool "Use DMA to clear/copy pages"
1847 Instead of using the CPU to zero and copy pages, use a Data Mover
1848 channel. These DMA channels are otherwise unused by the standard
1849 SiByte Linux port. Seems to give a small performance benefit.
1851 config CPU_HAS_PREFETCH
1854 config CPU_GENERIC_DUMP_TLB
1856 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
1860 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1862 config CPU_R4K_CACHE_TLB
1864 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1867 prompt "MIPS MT options"
1869 config MIPS_MT_DISABLED
1870 bool "Disable multithreading support."
1872 Use this option if your workload can't take advantage of
1873 MIPS hardware multithreading support. On systems that don't have
1874 the option of an MT-enabled processor this option will be the only
1875 option in this menu.
1878 bool "Use 1 TC on each available VPE for SMP"
1879 depends on SYS_SUPPORTS_MULTITHREADING
1880 select CPU_MIPSR2_IRQ_VI
1881 select CPU_MIPSR2_IRQ_EI
1883 select NR_CPUS_DEFAULT_2
1885 select SYS_SUPPORTS_SCHED_SMT if SMP
1886 select SYS_SUPPORTS_SMP
1888 select MIPS_PERF_SHARED_TC_COUNTERS
1890 This is a kernel model which is known a VSMP but lately has been
1891 marketesed into SMVP.
1892 Virtual SMP uses the processor's VPEs to implement virtual
1893 processors. In currently available configuration of the 34K processor
1894 this allows for a dual processor. Both processors will share the same
1895 primary caches; each will obtain the half of the TLB for it's own
1896 exclusive use. For a layman this model can be described as similar to
1897 what Intel calls Hyperthreading.
1899 For further information see http://www.linux-mips.org/wiki/34K#VSMP
1902 bool "SMTC: Use all TCs on all VPEs for SMP"
1903 depends on CPU_MIPS32_R2
1904 #depends on CPU_MIPS64_R2 # once there is hardware ...
1905 depends on SYS_SUPPORTS_MULTITHREADING
1906 select CPU_MIPSR2_IRQ_VI
1907 select CPU_MIPSR2_IRQ_EI
1909 select NR_CPUS_DEFAULT_8
1911 select SYS_SUPPORTS_SMP
1914 This is a kernel model which is known a SMTC or lately has been
1915 marketesed into SMVP.
1916 is presenting the available TC's of the core as processors to Linux.
1917 On currently available 34K processors this means a Linux system will
1918 see up to 5 processors. The implementation of the SMTC kernel differs
1919 significantly from VSMP and cannot efficiently coexist in the same
1920 kernel binary so the choice between VSMP and SMTC is a compile time
1923 For further information see http://www.linux-mips.org/wiki/34K#SMTC
1931 bool "SMT (multithreading) scheduler support"
1932 depends on SYS_SUPPORTS_SCHED_SMT
1935 SMT scheduler support improves the CPU scheduler's decision making
1936 when dealing with MIPS MT enabled cores at a cost of slightly
1937 increased overhead in some places. If unsure say N here.
1939 config SYS_SUPPORTS_SCHED_SMT
1942 config SYS_SUPPORTS_MULTITHREADING
1945 config MIPS_MT_FPAFF
1946 bool "Dynamic FPU affinity for FP-intensive threads"
1948 depends on MIPS_MT_SMP || MIPS_MT_SMTC
1950 config MIPS_VPE_LOADER
1951 bool "VPE loader support."
1952 depends on SYS_SUPPORTS_MULTITHREADING
1953 select CPU_MIPSR2_IRQ_VI
1954 select CPU_MIPSR2_IRQ_EI
1957 Includes a loader for loading an elf relocatable object
1958 onto another VPE and running it.
1960 config MIPS_MT_SMTC_IM_BACKSTOP
1961 bool "Use per-TC register bits as backstop for inhibited IM bits"
1962 depends on MIPS_MT_SMTC
1965 To support multiple TC microthreads acting as "CPUs" within
1966 a VPE, VPE-wide interrupt mask bits must be specially manipulated
1967 during interrupt handling. To support legacy drivers and interrupt
1968 controller management code, SMTC has a "backstop" to track and
1969 if necessary restore the interrupt mask. This has some performance
1970 impact on interrupt service overhead.
1972 config MIPS_MT_SMTC_IRQAFF
1973 bool "Support IRQ affinity API"
1974 depends on MIPS_MT_SMTC
1977 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
1978 for SMTC Linux kernel. Requires platform support, of which
1979 an example can be found in the MIPS kernel i8259 and Malta
1980 platform code. Adds some overhead to interrupt dispatch, and
1981 should be used only if you know what you are doing.
1983 config MIPS_VPE_LOADER_TOM
1984 bool "Load VPE program into memory hidden from linux"
1985 depends on MIPS_VPE_LOADER
1988 The loader can use memory that is present but has been hidden from
1989 Linux using the kernel command line option "mem=xxMB". It's up to
1990 you to ensure the amount you put in the option and the space your
1991 program requires is less or equal to the amount physically present.
1993 # this should possibly be in drivers/char, but it is rather cpu related. Hmmm
1994 config MIPS_VPE_APSP_API
1995 bool "Enable support for AP/SP API (RTLX)"
1996 depends on MIPS_VPE_LOADER
2000 bool "MIPS CMP framework support"
2001 depends on SYS_SUPPORTS_MIPS_CMP
2003 select SYS_SUPPORTS_SMP
2004 select SYS_SUPPORTS_SCHED_SMT if SMP
2005 select WEAK_ORDERING
2008 This is a placeholder option for the GCMP work. It will need to
2009 be handled differently...
2011 config SB1_PASS_1_WORKAROUNDS
2013 depends on CPU_SB1_PASS_1
2016 config SB1_PASS_2_WORKAROUNDS
2018 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2021 config SB1_PASS_2_1_WORKAROUNDS
2023 depends on CPU_SB1 && CPU_SB1_PASS_2
2026 config 64BIT_PHYS_ADDR
2029 config ARCH_PHYS_ADDR_T_64BIT
2030 def_bool 64BIT_PHYS_ADDR
2032 config CPU_HAS_SMARTMIPS
2033 depends on SYS_SUPPORTS_SMARTMIPS
2034 bool "Support for the SmartMIPS ASE"
2036 SmartMIPS is a extension of the MIPS32 architecture aimed at
2037 increased security at both hardware and software level for
2038 smartcards. Enabling this option will allow proper use of the
2039 SmartMIPS instructions by Linux applications. However a kernel with
2040 this option will not work on a MIPS core without SmartMIPS core. If
2041 you don't know you probably don't have SmartMIPS and should say N
2051 # Vectored interrupt mode is an R2 feature
2053 config CPU_MIPSR2_IRQ_VI
2057 # Extended interrupt mode is an R2 feature
2059 config CPU_MIPSR2_IRQ_EI
2064 depends on !CPU_R3000
2070 config CPU_DADDI_WORKAROUNDS
2073 config CPU_R4000_WORKAROUNDS
2075 select CPU_R4400_WORKAROUNDS
2077 config CPU_R4400_WORKAROUNDS
2081 # - Highmem only makes sense for the 32-bit kernel.
2082 # - The current highmem code will only work properly on physically indexed
2083 # caches such as R3000, SB1, R7000 or those that look like they're virtually
2084 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2085 # moment we protect the user and offer the highmem option only on machines
2086 # where it's known to be safe. This will not offer highmem on a few systems
2087 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2088 # indexed CPUs but we're playing safe.
2089 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2090 # know they might have memory configurations that could make use of highmem
2094 bool "High Memory Support"
2095 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
2097 config CPU_SUPPORTS_HIGHMEM
2100 config SYS_SUPPORTS_HIGHMEM
2103 config SYS_SUPPORTS_SMARTMIPS
2106 config ARCH_FLATMEM_ENABLE
2108 depends on !NUMA && !CPU_LOONGSON2
2110 config ARCH_DISCONTIGMEM_ENABLE
2112 default y if SGI_IP27
2114 Say Y to support efficient handling of discontiguous physical memory,
2115 for architectures which are either NUMA (Non-Uniform Memory Access)
2116 or have huge holes in the physical address space for other reasons.
2117 See <file:Documentation/vm/numa> for more.
2119 config ARCH_SPARSEMEM_ENABLE
2121 select SPARSEMEM_STATIC
2125 depends on SYS_SUPPORTS_NUMA
2127 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2128 Access). This option improves performance on systems with more
2129 than two nodes; on two node systems it is generally better to
2130 leave it disabled; on single node systems disable this option
2133 config SYS_SUPPORTS_NUMA
2139 depends on NEED_MULTIPLE_NODES
2141 config HW_PERF_EVENTS
2142 bool "Enable hardware performance counter support for perf events"
2143 depends on PERF_EVENTS && !MIPS_MT_SMTC && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP)
2146 Enable hardware performance counter support for perf events. If
2147 disabled, perf events will use software events only.
2152 bool "Multi-Processing support"
2153 depends on SYS_SUPPORTS_SMP
2154 select USE_GENERIC_SMP_HELPERS
2156 This enables support for systems with more than one CPU. If you have
2157 a system with only one CPU, like most personal computers, say N. If
2158 you have a system with more than one CPU, say Y.
2160 If you say N here, the kernel will run on single and multiprocessor
2161 machines, but will use only one CPU of a multiprocessor machine. If
2162 you say Y here, the kernel will run on many, but not all,
2163 singleprocessor machines. On a singleprocessor machine, the kernel
2164 will run faster if you say N here.
2166 People using multiprocessor machines who say Y here should also say
2167 Y to "Enhanced Real Time Clock Support", below.
2169 See also the SMP-HOWTO available at
2170 <http://www.tldp.org/docs.html#howto>.
2172 If you don't know what to do here, say N.
2177 config SYS_SUPPORTS_MIPS_CMP
2180 config SYS_SUPPORTS_SMP
2183 config NR_CPUS_DEFAULT_1
2186 config NR_CPUS_DEFAULT_2
2189 config NR_CPUS_DEFAULT_4
2192 config NR_CPUS_DEFAULT_8
2195 config NR_CPUS_DEFAULT_16
2198 config NR_CPUS_DEFAULT_32
2201 config NR_CPUS_DEFAULT_64
2205 int "Maximum number of CPUs (2-64)"
2206 range 1 64 if NR_CPUS_DEFAULT_1
2208 default "1" if NR_CPUS_DEFAULT_1
2209 default "2" if NR_CPUS_DEFAULT_2
2210 default "4" if NR_CPUS_DEFAULT_4
2211 default "8" if NR_CPUS_DEFAULT_8
2212 default "16" if NR_CPUS_DEFAULT_16
2213 default "32" if NR_CPUS_DEFAULT_32
2214 default "64" if NR_CPUS_DEFAULT_64
2216 This allows you to specify the maximum number of CPUs which this
2217 kernel will support. The maximum supported value is 32 for 32-bit
2218 kernel and 64 for 64-bit kernels; the minimum value which makes
2219 sense is 1 for Qemu (useful only for kernel debugging purposes)
2220 and 2 for all others.
2222 This is purely to save memory - each supported CPU adds
2223 approximately eight kilobytes to the kernel image. For best
2224 performance should round up your number of processors to the next
2227 config MIPS_PERF_SHARED_TC_COUNTERS
2231 # Timer Interrupt Frequency Configuration
2235 prompt "Timer frequency"
2238 Allows the configuration of the timer frequency.
2241 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2244 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2247 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2250 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2253 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2256 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2259 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2263 config SYS_SUPPORTS_48HZ
2266 config SYS_SUPPORTS_100HZ
2269 config SYS_SUPPORTS_128HZ
2272 config SYS_SUPPORTS_250HZ
2275 config SYS_SUPPORTS_256HZ
2278 config SYS_SUPPORTS_1000HZ
2281 config SYS_SUPPORTS_1024HZ
2284 config SYS_SUPPORTS_ARBIT_HZ
2286 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2287 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2288 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2289 !SYS_SUPPORTS_1024HZ
2294 default 100 if HZ_100
2295 default 128 if HZ_128
2296 default 250 if HZ_250
2297 default 256 if HZ_256
2298 default 1000 if HZ_1000
2299 default 1024 if HZ_1024
2301 source "kernel/Kconfig.preempt"
2304 bool "Kexec system call"
2306 kexec is a system call that implements the ability to shutdown your
2307 current kernel, and to start another kernel. It is like a reboot
2308 but it is independent of the system firmware. And like a reboot
2309 you can start any kernel with it, not just Linux.
2311 The name comes from the similarity to the exec system call.
2313 It is an ongoing process to be certain the hardware in a machine
2314 is properly shutdown, so do not be surprised if this code does not
2315 initially work for you. It may help to enable device hotplugging
2316 support. As of this writing the exact hardware interface is
2317 strongly in flux, so no good recommendation can be made.
2320 bool "Kernel crash dumps"
2322 Generate crash dump after being started by kexec.
2323 This should be normally only set in special crash dump kernels
2324 which are loaded in the main kernel with kexec-tools into
2325 a specially reserved region and then later executed after
2326 a crash by kdump/kexec. The crash dump kernel must be compiled
2327 to a memory address not used by the main kernel or firmware using
2330 config PHYSICAL_START
2331 hex "Physical address where the kernel is loaded"
2332 default "0xffffffff84000000" if 64BIT
2333 default "0x84000000" if 32BIT
2334 depends on CRASH_DUMP
2336 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2337 If you plan to use kernel for capturing the crash dump change
2338 this value to start of the reserved region (the "X" value as
2339 specified in the "crashkernel=YM@XM" command line boot parameter
2340 passed to the panic-ed kernel).
2343 bool "Enable seccomp to safely compute untrusted bytecode"
2347 This kernel feature is useful for number crunching applications
2348 that may need to compute untrusted bytecode during their
2349 execution. By using pipes or other transports made available to
2350 the process as file descriptors supporting the read/write
2351 syscalls, it's possible to isolate those applications in
2352 their own address space using seccomp. Once seccomp is
2353 enabled via /proc/<pid>/seccomp, it cannot be disabled
2354 and the task is only allowed to execute a few safe syscalls
2355 defined by each seccomp mode.
2357 If unsure, say Y. Only embedded should say N here.
2362 select OF_EARLY_FLATTREE
2367 config LOCKDEP_SUPPORT
2371 config STACKTRACE_SUPPORT
2375 source "init/Kconfig"
2377 source "kernel/Kconfig.freezer"
2379 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2387 bool "Support for PCI controller"
2388 depends on HW_HAS_PCI
2390 select GENERIC_PCI_IOMAP
2391 select NO_GENERIC_PCI_IOPORT_MAP
2393 Find out whether you have a PCI motherboard. PCI is the name of a
2394 bus system, i.e. the way the CPU talks to the other stuff inside
2395 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2401 source "drivers/pci/Kconfig"
2403 source "drivers/pci/pcie/Kconfig"
2406 # ISA support is now enabled via select. Too many systems still have the one
2407 # or other ISA chip on the board that users don't know about so don't expect
2408 # users to choose the right thing ...
2415 depends on HW_HAS_EISA
2417 select GENERIC_ISA_DMA
2419 The Extended Industry Standard Architecture (EISA) bus was
2420 developed as an open alternative to the IBM MicroChannel bus.
2422 The EISA bus provided some of the features of the IBM MicroChannel
2423 bus while maintaining backward compatibility with cards made for
2424 the older ISA bus. The EISA bus saw limited use between 1988 and
2425 1995 when it was made obsolete by the PCI bus.
2427 Say Y here if you are building a kernel for an EISA-based machine.
2431 source "drivers/eisa/Kconfig"
2434 bool "TURBOchannel support"
2435 depends on MACH_DECSTATION
2437 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2438 processors. TURBOchannel programming specifications are available
2440 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2442 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2443 Linux driver support status is documented at:
2444 <http://www.linux-mips.org/wiki/DECstation>
2454 select MIPS_EXTERNAL_TIMER
2459 source "drivers/pcmcia/Kconfig"
2461 source "drivers/pci/hotplug/Kconfig"
2464 bool "RapidIO support"
2468 If you say Y here, the kernel will include drivers and
2469 infrastructure code to support RapidIO interconnect devices.
2471 source "drivers/rapidio/Kconfig"
2475 menu "Executable file formats"
2477 source "fs/Kconfig.binfmt"
2482 config MIPS32_COMPAT
2483 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2486 Select this option if you want Linux/MIPS 32-bit binary
2487 compatibility. Since all software available for Linux/MIPS is
2488 currently 32-bit you should say Y here.
2492 depends on MIPS32_COMPAT
2493 select ARCH_WANT_OLD_COMPAT_IPC
2496 config SYSVIPC_COMPAT
2498 depends on COMPAT && SYSVIPC
2502 bool "Kernel support for o32 binaries"
2503 depends on MIPS32_COMPAT
2505 Select this option if you want to run o32 binaries. These are pure
2506 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2507 existing binaries are in this format.
2512 bool "Kernel support for n32 binaries"
2513 depends on MIPS32_COMPAT
2515 Select this option if you want to run n32 binaries. These are
2516 64-bit binaries using 32-bit quantities for addressing and certain
2517 data that would normally be 64-bit. They are used in special
2524 default y if MIPS32_O32 || MIPS32_N32
2528 menu "Power management options"
2530 config ARCH_HIBERNATION_POSSIBLE
2532 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2534 config ARCH_SUSPEND_POSSIBLE
2536 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2538 source "kernel/power/Kconfig"
2542 source "arch/mips/kernel/cpufreq/Kconfig"
2544 source "net/Kconfig"
2546 source "drivers/Kconfig"
2548 source "drivers/firmware/Kconfig"
2552 source "arch/mips/Kconfig.debug"
2554 source "security/Kconfig"
2556 source "crypto/Kconfig"
2558 source "lib/Kconfig"