4 select HAVE_GENERIC_DMA_COHERENT
7 select HAVE_PERF_EVENTS
8 select PERF_USE_VMALLOC
10 select ARCH_HAVE_CUSTOM_GPIO_H
11 select HAVE_FUNCTION_TRACER
12 select HAVE_FUNCTION_TRACE_MCOUNT_TEST
13 select HAVE_DYNAMIC_FTRACE
14 select HAVE_FTRACE_MCOUNT_RECORD
15 select HAVE_C_RECORDMCOUNT
16 select HAVE_FUNCTION_GRAPH_TRACER
18 select HAVE_KRETPROBES
19 select HAVE_DEBUG_KMEMLEAK
20 select ARCH_BINFMT_ELF_RANDOMIZE_PIE
21 select HAVE_ARCH_TRANSPARENT_HUGEPAGE
22 select RTC_LIB if !MACH_LOONGSON
23 select GENERIC_ATOMIC64 if !64BIT
24 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
26 select HAVE_DMA_API_DEBUG
27 select HAVE_GENERIC_HARDIRQS
28 select GENERIC_IRQ_PROBE
29 select GENERIC_IRQ_SHOW
30 select HAVE_ARCH_JUMP_LABEL
31 select ARCH_WANT_IPC_PARSE_VERSION
32 select IRQ_FORCED_THREADING
34 select HAVE_MEMBLOCK_NODE_MAP
35 select ARCH_DISCARD_MEMBLOCK
36 select GENERIC_SMP_IDLE_THREAD
37 select BUILDTIME_EXTABLE_SORT
38 select GENERIC_CLOCKEVENTS
39 select GENERIC_CMOS_UPDATE
40 select HAVE_MOD_ARCH_SPECIFIC
41 select MODULES_USE_ELF_REL if MODULES
42 select MODULES_USE_ELF_RELA if MODULES && 64BIT
44 menu "Machine selection"
54 bool "Alchemy processor based machines"
55 select 64BIT_PHYS_ADDR
59 select SYS_HAS_CPU_MIPS32_R1
60 select SYS_SUPPORTS_32BIT_KERNEL
61 select SYS_SUPPORTS_APM_EMULATION
63 select ARCH_WANT_OPTIONAL_GPIOLIB
64 select SYS_SUPPORTS_ZBOOT
65 select USB_ARCH_HAS_OHCI
66 select USB_ARCH_HAS_EHCI
69 bool "Texas Instruments AR7"
71 select DMA_NONCOHERENT
77 select SYS_HAS_CPU_MIPS32_R1
78 select SYS_HAS_EARLY_PRINTK
79 select SYS_SUPPORTS_32BIT_KERNEL
80 select SYS_SUPPORTS_LITTLE_ENDIAN
81 select SYS_SUPPORTS_ZBOOT_UART16550
82 select ARCH_REQUIRE_GPIOLIB
86 Support for the Texas Instruments AR7 System-on-a-Chip
87 family: TNETD7100, 7200 and 7300.
90 bool "Atheros AR71XX/AR724X/AR913X based boards"
91 select ARCH_REQUIRE_GPIOLIB
95 select DMA_NONCOHERENT
99 select SYS_HAS_CPU_MIPS32_R2
100 select SYS_HAS_EARLY_PRINTK
101 select SYS_SUPPORTS_32BIT_KERNEL
102 select SYS_SUPPORTS_BIG_ENDIAN
104 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
107 bool "Broadcom BCM47XX based boards"
108 select ARCH_WANT_OPTIONAL_GPIOLIB
111 select DMA_NONCOHERENT
115 select SYS_SUPPORTS_32BIT_KERNEL
116 select SYS_SUPPORTS_LITTLE_ENDIAN
117 select SYS_HAS_EARLY_PRINTK
119 Support for BCM47XX based boards
122 bool "Broadcom BCM63XX based boards"
125 select DMA_NONCOHERENT
127 select SYS_HAS_CPU_MIPS32_R1
128 select SYS_SUPPORTS_32BIT_KERNEL
129 select SYS_SUPPORTS_BIG_ENDIAN
130 select SYS_HAS_EARLY_PRINTK
132 select ARCH_REQUIRE_GPIOLIB
135 Support for BCM63XX based boards
142 select DMA_NONCOHERENT
148 select PCI_GT64XXX_PCI0
150 select SYS_HAS_CPU_NEVADA
151 select SYS_HAS_EARLY_PRINTK
152 select SYS_SUPPORTS_32BIT_KERNEL
153 select SYS_SUPPORTS_64BIT_KERNEL
154 select SYS_SUPPORTS_LITTLE_ENDIAN
156 config MACH_DECSTATION
163 select CPU_DADDI_WORKAROUNDS if 64BIT
164 select CPU_R4000_WORKAROUNDS if 64BIT
165 select CPU_R4400_WORKAROUNDS if 64BIT
166 select DMA_NONCOHERENT
169 select SYS_HAS_CPU_R3000
170 select SYS_HAS_CPU_R4X00
171 select SYS_SUPPORTS_32BIT_KERNEL
172 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
173 select SYS_SUPPORTS_LITTLE_ENDIAN
174 select SYS_SUPPORTS_128HZ
175 select SYS_SUPPORTS_256HZ
176 select SYS_SUPPORTS_1024HZ
178 This enables support for DEC's MIPS based workstations. For details
179 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
180 DECstation porting pages on <http://decstation.unix-ag.org/>.
182 If you have one of the following DECstation Models you definitely
183 want to choose R4xx0 for the CPU Type:
190 otherwise choose R3000.
193 bool "Jazz family of machines"
196 select ARCH_MAY_HAVE_PC_FDC
199 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
200 select GENERIC_ISA_DMA
201 select HAVE_PCSPKR_PLATFORM
206 select SYS_HAS_CPU_R4X00
207 select SYS_SUPPORTS_32BIT_KERNEL
208 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
209 select SYS_SUPPORTS_100HZ
211 This a family of machines based on the MIPS R4030 chipset which was
212 used by several vendors to build RISC/os and Windows NT workstations.
213 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
214 Olivetti M700-10 workstations.
217 bool "Ingenic JZ4740 based machines"
218 select SYS_HAS_CPU_MIPS32_R1
219 select SYS_SUPPORTS_32BIT_KERNEL
220 select SYS_SUPPORTS_LITTLE_ENDIAN
221 select SYS_SUPPORTS_ZBOOT_UART16550
222 select DMA_NONCOHERENT
225 select ARCH_REQUIRE_GPIOLIB
226 select SYS_HAS_EARLY_PRINTK
229 select GENERIC_IRQ_CHIP
232 bool "Lantiq based platforms"
233 select DMA_NONCOHERENT
237 select SYS_HAS_CPU_MIPS32_R1
238 select SYS_HAS_CPU_MIPS32_R2
239 select SYS_SUPPORTS_BIG_ENDIAN
240 select SYS_SUPPORTS_32BIT_KERNEL
241 select SYS_SUPPORTS_MULTITHREADING
242 select SYS_HAS_EARLY_PRINTK
243 select ARCH_REQUIRE_GPIOLIB
246 select HAVE_MACH_CLKDEV
250 select PINCTRL_LANTIQ
253 bool "LASAT Networks platforms"
256 select DMA_NONCOHERENT
257 select SYS_HAS_EARLY_PRINTK
260 select PCI_GT64XXX_PCI0
262 select R5000_CPU_SCACHE
263 select SYS_HAS_CPU_R5000
264 select SYS_SUPPORTS_32BIT_KERNEL
265 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
266 select SYS_SUPPORTS_LITTLE_ENDIAN
269 bool "Loongson family of machines"
270 select SYS_SUPPORTS_ZBOOT
272 This enables the support of Loongson family of machines.
274 Loongson is a family of general-purpose MIPS-compatible CPUs.
275 developed at Institute of Computing Technology (ICT),
276 Chinese Academy of Sciences (CAS) in the People's Republic
277 of China. The chief architect is Professor Weiwu Hu.
279 config MACH_LOONGSON1
280 bool "Loongson 1 family of machines"
281 select SYS_SUPPORTS_ZBOOT
283 This enables support for the Loongson 1 based machines.
285 Loongson 1 is a family of 32-bit MIPS-compatible SoCs developed by
286 the ICT (Institute of Computing Technology) and the Chinese Academy
290 bool "MIPS Malta board"
291 select ARCH_MAY_HAVE_PC_FDC
296 select DMA_NONCOHERENT
297 select GENERIC_ISA_DMA
298 select HAVE_PCSPKR_PLATFORM
304 select MIPS_BOARDS_GEN
306 select MIPS_CPU_SCACHE
307 select PCI_GT64XXX_PCI0
310 select SYS_HAS_CPU_MIPS32_R1
311 select SYS_HAS_CPU_MIPS32_R2
312 select SYS_HAS_CPU_MIPS64_R1
313 select SYS_HAS_CPU_MIPS64_R2
314 select SYS_HAS_CPU_NEVADA
315 select SYS_HAS_CPU_RM7000
316 select SYS_HAS_EARLY_PRINTK
317 select SYS_SUPPORTS_32BIT_KERNEL
318 select SYS_SUPPORTS_64BIT_KERNEL
319 select SYS_SUPPORTS_BIG_ENDIAN
320 select SYS_SUPPORTS_LITTLE_ENDIAN
321 select SYS_SUPPORTS_MIPS_CMP
322 select SYS_SUPPORTS_MULTITHREADING
323 select SYS_SUPPORTS_SMARTMIPS
324 select SYS_SUPPORTS_ZBOOT
326 This enables support for the MIPS Technologies Malta evaluation
330 bool "MIPS SEAD3 board"
335 select CPU_MIPSR2_IRQ_VI
336 select CPU_MIPSR2_IRQ_EI
337 select DMA_NONCOHERENT
340 select MIPS_BOARDS_GEN
341 select MIPS_CPU_SCACHE
343 select SYS_HAS_CPU_MIPS32_R1
344 select SYS_HAS_CPU_MIPS32_R2
345 select SYS_HAS_CPU_MIPS64_R1
346 select SYS_HAS_EARLY_PRINTK
347 select SYS_SUPPORTS_32BIT_KERNEL
348 select SYS_SUPPORTS_64BIT_KERNEL
349 select SYS_SUPPORTS_BIG_ENDIAN
350 select SYS_SUPPORTS_LITTLE_ENDIAN
351 select SYS_SUPPORTS_SMARTMIPS
352 select USB_ARCH_HAS_EHCI
353 select USB_EHCI_BIG_ENDIAN_DESC
354 select USB_EHCI_BIG_ENDIAN_MMIO
356 This enables support for the MIPS Technologies SEAD3 evaluation
360 bool "NEC EMMA2RH Mark-eins board"
364 This enables support for the NEC Electronics Mark-eins boards.
367 bool "NEC VR4100 series based machines"
370 select SYS_HAS_CPU_VR41XX
371 select ARCH_REQUIRE_GPIOLIB
374 bool "NXP STB220 board"
377 Support for NXP Semiconductors STB220 Development Board.
384 Support for NXP Semiconductors STB225 Development Board.
387 bool "NXP PNX8550 based JBS board"
389 select SYS_SUPPORTS_LITTLE_ENDIAN
391 config PNX8550_STB810
392 bool "NXP PNX8550 based STB810 board"
394 select SYS_SUPPORTS_LITTLE_ENDIAN
397 bool "PMC-Sierra MSP chipsets"
398 depends on EXPERIMENTAL
401 select DMA_NONCOHERENT
403 select NO_EXCEPT_FILL
405 select SYS_HAS_CPU_MIPS32_R1
406 select SYS_HAS_CPU_MIPS32_R2
407 select SYS_SUPPORTS_32BIT_KERNEL
408 select SYS_SUPPORTS_BIG_ENDIAN
411 select SERIAL_8250_CONSOLE
413 This adds support for the PMC-Sierra family of Multi-Service
414 Processor System-On-A-Chips. These parts include a number
415 of integrated peripherals, interfaces and DSPs in addition to
416 a variety of MIPS cores.
422 select CPU_MIPSR2_IRQ_VI
423 select CPU_MIPSR2_IRQ_EI
425 select DMA_NONCOHERENT
427 select SYS_HAS_EARLY_PRINTK
428 select SYS_HAS_CPU_MIPS32_R2
429 select SYS_SUPPORTS_32BIT_KERNEL
430 select SYS_SUPPORTS_BIG_ENDIAN
431 select SYS_SUPPORTS_HIGHMEM
432 select USB_OHCI_LITTLE_ENDIAN
434 This enables support for the Cisco PowerTV Platform.
437 bool "SGI IP22 (Indy/Indigo2)"
443 select DEFAULT_SGI_PARTITION
444 select DMA_NONCOHERENT
448 select IP22_CPU_SCACHE
450 select GENERIC_ISA_DMA_SUPPORT_BROKEN
452 select SGI_HAS_INDYDOG
458 select SYS_HAS_CPU_R4X00
459 select SYS_HAS_CPU_R5000
461 # Disable EARLY_PRINTK for now since it leads to overwritten prom
462 # memory during early boot on some machines.
464 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
465 # for a more details discussion
467 # select SYS_HAS_EARLY_PRINTK
468 select SYS_SUPPORTS_32BIT_KERNEL
469 select SYS_SUPPORTS_64BIT_KERNEL
470 select SYS_SUPPORTS_BIG_ENDIAN
472 This are the SGI Indy, Challenge S and Indigo2, as well as certain
473 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
474 that runs on these, say Y here.
477 bool "SGI IP27 (Origin200/2000)"
481 select DEFAULT_SGI_PARTITION
483 select SYS_HAS_EARLY_PRINTK
485 select NR_CPUS_DEFAULT_64
486 select SYS_HAS_CPU_R10000
487 select SYS_SUPPORTS_64BIT_KERNEL
488 select SYS_SUPPORTS_BIG_ENDIAN
489 select SYS_SUPPORTS_NUMA
490 select SYS_SUPPORTS_SMP
492 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
493 workstations. To compile a Linux kernel that runs on these, say Y
497 bool "SGI IP28 (Indigo2 R10k) (EXPERIMENTAL)"
498 depends on EXPERIMENTAL
504 select DEFAULT_SGI_PARTITION
505 select DMA_NONCOHERENT
506 select GENERIC_ISA_DMA_SUPPORT_BROKEN
512 select SGI_HAS_INDYDOG
518 select SYS_HAS_CPU_R10000
520 # Disable EARLY_PRINTK for now since it leads to overwritten prom
521 # memory during early boot on some machines.
523 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
524 # for a more details discussion
526 # select SYS_HAS_EARLY_PRINTK
527 select SYS_SUPPORTS_64BIT_KERNEL
528 select SYS_SUPPORTS_BIG_ENDIAN
530 This is the SGI Indigo2 with R10000 processor. To compile a Linux
531 kernel that runs on these, say Y here.
540 select DMA_NONCOHERENT
543 select R5000_CPU_SCACHE
544 select RM7000_CPU_SCACHE
545 select SYS_HAS_CPU_R5000
546 select SYS_HAS_CPU_R10000 if BROKEN
547 select SYS_HAS_CPU_RM7000
548 select SYS_HAS_CPU_NEVADA
549 select SYS_SUPPORTS_64BIT_KERNEL
550 select SYS_SUPPORTS_BIG_ENDIAN
552 If you want this kernel to run on SGI O2 workstation, say Y here.
555 bool "Sibyte BCM91120C-CRhine"
556 depends on EXPERIMENTAL
559 select SIBYTE_BCM1120
561 select SYS_HAS_CPU_SB1
562 select SYS_SUPPORTS_BIG_ENDIAN
563 select SYS_SUPPORTS_LITTLE_ENDIAN
566 bool "Sibyte BCM91120x-Carmel"
567 depends on EXPERIMENTAL
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 BCM91125C-CRhone"
578 depends on EXPERIMENTAL
581 select SIBYTE_BCM1125
583 select SYS_HAS_CPU_SB1
584 select SYS_SUPPORTS_BIG_ENDIAN
585 select SYS_SUPPORTS_HIGHMEM
586 select SYS_SUPPORTS_LITTLE_ENDIAN
589 bool "Sibyte BCM91125E-Rhone"
590 depends on EXPERIMENTAL
593 select SIBYTE_BCM1125H
595 select SYS_HAS_CPU_SB1
596 select SYS_SUPPORTS_BIG_ENDIAN
597 select SYS_SUPPORTS_LITTLE_ENDIAN
600 bool "Sibyte BCM91250A-SWARM"
603 select HAVE_PATA_PLATFORM
604 select NR_CPUS_DEFAULT_2
607 select SYS_HAS_CPU_SB1
608 select SYS_SUPPORTS_BIG_ENDIAN
609 select SYS_SUPPORTS_HIGHMEM
610 select SYS_SUPPORTS_LITTLE_ENDIAN
611 select ZONE_DMA32 if 64BIT
613 config SIBYTE_LITTLESUR
614 bool "Sibyte BCM91250C2-LittleSur"
615 depends on EXPERIMENTAL
618 select HAVE_PATA_PLATFORM
619 select NR_CPUS_DEFAULT_2
622 select SYS_HAS_CPU_SB1
623 select SYS_SUPPORTS_BIG_ENDIAN
624 select SYS_SUPPORTS_HIGHMEM
625 select SYS_SUPPORTS_LITTLE_ENDIAN
627 config SIBYTE_SENTOSA
628 bool "Sibyte BCM91250E-Sentosa"
629 depends on EXPERIMENTAL
632 select NR_CPUS_DEFAULT_2
635 select SYS_HAS_CPU_SB1
636 select SYS_SUPPORTS_BIG_ENDIAN
637 select SYS_SUPPORTS_LITTLE_ENDIAN
640 bool "Sibyte BCM91480B-BigSur"
643 select NR_CPUS_DEFAULT_4
644 select SIBYTE_BCM1x80
646 select SYS_HAS_CPU_SB1
647 select SYS_SUPPORTS_BIG_ENDIAN
648 select SYS_SUPPORTS_HIGHMEM
649 select SYS_SUPPORTS_LITTLE_ENDIAN
650 select ZONE_DMA32 if 64BIT
653 bool "SNI RM200/300/400"
654 select FW_ARC if CPU_LITTLE_ENDIAN
655 select FW_ARC32 if CPU_LITTLE_ENDIAN
656 select SNIPROM if CPU_BIG_ENDIAN
657 select ARCH_MAY_HAVE_PC_FDC
661 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
662 select DMA_NONCOHERENT
663 select GENERIC_ISA_DMA
664 select HAVE_PCSPKR_PLATFORM
671 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
672 select SYS_HAS_CPU_R4X00
673 select SYS_HAS_CPU_R5000
674 select SYS_HAS_CPU_R10000
675 select R5000_CPU_SCACHE
676 select SYS_HAS_EARLY_PRINTK
677 select SYS_SUPPORTS_32BIT_KERNEL
678 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
679 select SYS_SUPPORTS_BIG_ENDIAN
680 select SYS_SUPPORTS_HIGHMEM
681 select SYS_SUPPORTS_LITTLE_ENDIAN
683 The SNI RM200/300/400 are MIPS-based machines manufactured by
684 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
685 Technology and now in turn merged with Fujitsu. Say Y here to
686 support this machine type.
689 bool "Toshiba TX39 series based machines"
692 bool "Toshiba TX49 series based machines"
694 config MIKROTIK_RB532
695 bool "Mikrotik RB532 boards"
698 select DMA_NONCOHERENT
701 select SYS_HAS_CPU_MIPS32_R1
702 select SYS_SUPPORTS_32BIT_KERNEL
703 select SYS_SUPPORTS_LITTLE_ENDIAN
706 select ARCH_REQUIRE_GPIOLIB
708 Support the Mikrotik(tm) RouterBoard 532 series,
709 based on the IDT RC32434 SoC.
712 bool "Wind River PPMC board"
717 select DMA_NONCOHERENT
719 select PCI_GT64XXX_PCI0
721 select SYS_HAS_CPU_MIPS32_R1
722 select SYS_HAS_CPU_MIPS32_R2
723 select SYS_HAS_CPU_MIPS64_R1
724 select SYS_HAS_CPU_NEVADA
725 select SYS_HAS_CPU_RM7000
726 select SYS_SUPPORTS_32BIT_KERNEL
727 select SYS_SUPPORTS_64BIT_KERNEL
728 select SYS_SUPPORTS_BIG_ENDIAN
729 select SYS_SUPPORTS_LITTLE_ENDIAN
731 This enables support for the Wind River MIPS32 4KC PPMC evaluation
732 board, which is based on GT64120 bridge chip.
734 config CAVIUM_OCTEON_SIMULATOR
735 bool "Cavium Networks Octeon Simulator"
737 select 64BIT_PHYS_ADDR
739 select SYS_SUPPORTS_64BIT_KERNEL
740 select SYS_SUPPORTS_BIG_ENDIAN
741 select SYS_SUPPORTS_HOTPLUG_CPU
742 select SYS_HAS_CPU_CAVIUM_OCTEON
745 The Octeon simulator is software performance model of the Cavium
746 Octeon Processor. It supports simulating Octeon processors on x86
749 config CAVIUM_OCTEON_REFERENCE_BOARD
750 bool "Cavium Networks Octeon reference board"
752 select 64BIT_PHYS_ADDR
754 select SYS_SUPPORTS_64BIT_KERNEL
755 select SYS_SUPPORTS_BIG_ENDIAN
757 select SYS_SUPPORTS_HOTPLUG_CPU
758 select SYS_HAS_EARLY_PRINTK
759 select SYS_HAS_CPU_CAVIUM_OCTEON
762 select ARCH_SUPPORTS_MSI
764 select USB_ARCH_HAS_OHCI
765 select USB_ARCH_HAS_EHCI
768 This option supports all of the Octeon reference boards from Cavium
769 Networks. It builds a kernel that dynamically determines the Octeon
770 CPU type and supports all known board reference implementations.
771 Some of the supported boards are:
778 Say Y here for most Octeon reference boards.
781 bool "Netlogic XLR/XLS based systems"
782 depends on EXPERIMENTAL
785 select SYS_HAS_CPU_XLR
786 select SYS_SUPPORTS_SMP
789 select SYS_SUPPORTS_32BIT_KERNEL
790 select SYS_SUPPORTS_64BIT_KERNEL
791 select 64BIT_PHYS_ADDR
792 select SYS_SUPPORTS_BIG_ENDIAN
793 select SYS_SUPPORTS_HIGHMEM
795 select NR_CPUS_DEFAULT_32
799 select ARCH_SUPPORTS_MSI
800 select ZONE_DMA32 if 64BIT
802 select SYS_HAS_EARLY_PRINTK
803 select USB_ARCH_HAS_OHCI if USB_SUPPORT
804 select USB_ARCH_HAS_EHCI if USB_SUPPORT
806 Support for systems based on Netlogic XLR and XLS processors.
807 Say Y here if you have a XLR or XLS based board.
810 bool "Netlogic XLP based systems"
811 depends on EXPERIMENTAL
814 select SYS_HAS_CPU_XLP
815 select SYS_SUPPORTS_SMP
817 select SYS_SUPPORTS_32BIT_KERNEL
818 select SYS_SUPPORTS_64BIT_KERNEL
819 select 64BIT_PHYS_ADDR
820 select SYS_SUPPORTS_BIG_ENDIAN
821 select SYS_SUPPORTS_LITTLE_ENDIAN
822 select SYS_SUPPORTS_HIGHMEM
824 select NR_CPUS_DEFAULT_32
828 select ZONE_DMA32 if 64BIT
830 select SYS_HAS_EARLY_PRINTK
833 This board is based on Netlogic XLP Processor.
834 Say Y here if you have a XLP based board.
838 source "arch/mips/alchemy/Kconfig"
839 source "arch/mips/ath79/Kconfig"
840 source "arch/mips/bcm47xx/Kconfig"
841 source "arch/mips/bcm63xx/Kconfig"
842 source "arch/mips/jazz/Kconfig"
843 source "arch/mips/jz4740/Kconfig"
844 source "arch/mips/lantiq/Kconfig"
845 source "arch/mips/lasat/Kconfig"
846 source "arch/mips/pmc-sierra/Kconfig"
847 source "arch/mips/powertv/Kconfig"
848 source "arch/mips/sgi-ip27/Kconfig"
849 source "arch/mips/sibyte/Kconfig"
850 source "arch/mips/txx9/Kconfig"
851 source "arch/mips/vr41xx/Kconfig"
852 source "arch/mips/cavium-octeon/Kconfig"
853 source "arch/mips/loongson/Kconfig"
854 source "arch/mips/loongson1/Kconfig"
855 source "arch/mips/netlogic/Kconfig"
859 config RWSEM_GENERIC_SPINLOCK
863 config RWSEM_XCHGADD_ALGORITHM
866 config ARCH_HAS_ILOG2_U32
870 config ARCH_HAS_ILOG2_U64
874 config GENERIC_HWEIGHT
878 config GENERIC_CALIBRATE_DELAY
882 config SCHED_OMIT_FRAME_POINTER
887 # Select some configuration options automatically based on user selections.
892 config ARCH_MAY_HAVE_PC_FDC
933 select ARCH_REQUIRE_GPIOLIB
939 config ARCH_DMA_ADDR_T_64BIT
940 def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT
945 config DMA_NONCOHERENT
947 select NEED_DMA_MAP_STATE
949 config NEED_DMA_MAP_STATE
952 config SYS_HAS_EARLY_PRINTK
956 bool "Support for hot-pluggable CPUs"
957 depends on SMP && HOTPLUG && SYS_SUPPORTS_HOTPLUG_CPU
959 Say Y here to allow turning CPUs off and on. CPUs can be
960 controlled through /sys/devices/system/cpu.
961 (Note: power management support will enable this option
962 automatically on SMP systems. )
963 Say N if you want to disable CPU hotplug.
965 config SYS_SUPPORTS_HOTPLUG_CPU
980 config MIPS_DISABLE_OBSOLETE_IDE
992 config GENERIC_ISA_DMA
994 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
997 config GENERIC_ISA_DMA_SUPPORT_BROKEN
999 select GENERIC_ISA_DMA
1007 config HOLES_IN_ZONE
1011 # Endianness selection. Sufficiently obscure so many users don't know what to
1012 # answer,so we try hard to limit the available choices. Also the use of a
1013 # choice statement should be more obvious to the user.
1016 prompt "Endianness selection"
1018 Some MIPS machines can be configured for either little or big endian
1019 byte order. These modes require different kernels and a different
1020 Linux distribution. In general there is one preferred byteorder for a
1021 particular system but some systems are just as commonly used in the
1022 one or the other endianness.
1024 config CPU_BIG_ENDIAN
1026 depends on SYS_SUPPORTS_BIG_ENDIAN
1028 config CPU_LITTLE_ENDIAN
1029 bool "Little endian"
1030 depends on SYS_SUPPORTS_LITTLE_ENDIAN
1038 config SYS_SUPPORTS_APM_EMULATION
1041 config SYS_SUPPORTS_BIG_ENDIAN
1044 config SYS_SUPPORTS_LITTLE_ENDIAN
1047 config SYS_SUPPORTS_HUGETLBFS
1049 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1052 config MIPS_HUGE_TLB_SUPPORT
1053 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1076 config MIPS_BOARDS_GEN
1079 config PCI_GT64XXX_PCI0
1082 config NO_EXCEPT_FILL
1089 select DMA_NONCOHERENT
1091 select SWAP_IO_SPACE
1092 select SYS_HAS_CPU_R5500
1093 select SYS_SUPPORTS_32BIT_KERNEL
1094 select SYS_SUPPORTS_64BIT_KERNEL
1095 select SYS_SUPPORTS_BIG_ENDIAN
1102 select DMA_NONCOHERENT
1103 select SYS_HAS_CPU_MIPS32_R2
1104 select SYS_SUPPORTS_32BIT_KERNEL
1105 select SYS_SUPPORTS_LITTLE_ENDIAN
1106 select SYS_SUPPORTS_BIG_ENDIAN
1108 select CPU_MIPSR2_IRQ_VI
1120 select DMA_NONCOHERENT
1122 select SYS_HAS_CPU_MIPS32_R1
1123 select SYS_HAS_EARLY_PRINTK
1124 select SYS_SUPPORTS_32BIT_KERNEL
1127 config SWAP_IO_SPACE
1130 config SGI_HAS_INDYDOG
1142 config SGI_HAS_ZILOG
1145 config SGI_HAS_I8042
1148 config DEFAULT_SGI_PARTITION
1160 config MIPS_L1_CACHE_SHIFT
1162 default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL
1163 default "6" if MIPS_CPU_SCACHE
1164 default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON
1167 config HAVE_STD_PC_SERIAL_PORT
1171 bool "ARC console support"
1172 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1176 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1181 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1190 menu "CPU selection"
1196 config CPU_LOONGSON2E
1198 depends on SYS_HAS_CPU_LOONGSON2E
1199 select CPU_LOONGSON2
1201 The Loongson 2E processor implements the MIPS III instruction set
1202 with many extensions.
1204 It has an internal FPGA northbridge, which is compatible to
1207 config CPU_LOONGSON2F
1209 depends on SYS_HAS_CPU_LOONGSON2F
1210 select CPU_LOONGSON2
1212 select ARCH_REQUIRE_GPIOLIB
1214 The Loongson 2F processor implements the MIPS III instruction set
1215 with many extensions.
1217 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1218 have a similar programming interface with FPGA northbridge used in
1221 config CPU_LOONGSON1B
1223 depends on SYS_HAS_CPU_LOONGSON1B
1224 select CPU_LOONGSON1
1226 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1227 release 2 instruction set.
1229 config CPU_MIPS32_R1
1230 bool "MIPS32 Release 1"
1231 depends on SYS_HAS_CPU_MIPS32_R1
1232 select CPU_HAS_PREFETCH
1233 select CPU_SUPPORTS_32BIT_KERNEL
1234 select CPU_SUPPORTS_HIGHMEM
1236 Choose this option to build a kernel for release 1 or later of the
1237 MIPS32 architecture. Most modern embedded systems with a 32-bit
1238 MIPS processor are based on a MIPS32 processor. If you know the
1239 specific type of processor in your system, choose those that one
1240 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1241 Release 2 of the MIPS32 architecture is available since several
1242 years so chances are you even have a MIPS32 Release 2 processor
1243 in which case you should choose CPU_MIPS32_R2 instead for better
1246 config CPU_MIPS32_R2
1247 bool "MIPS32 Release 2"
1248 depends on SYS_HAS_CPU_MIPS32_R2
1249 select CPU_HAS_PREFETCH
1250 select CPU_SUPPORTS_32BIT_KERNEL
1251 select CPU_SUPPORTS_HIGHMEM
1253 Choose this option to build a kernel for release 2 or later of the
1254 MIPS32 architecture. Most modern embedded systems with a 32-bit
1255 MIPS processor are based on a MIPS32 processor. If you know the
1256 specific type of processor in your system, choose those that one
1257 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1259 config CPU_MIPS64_R1
1260 bool "MIPS64 Release 1"
1261 depends on SYS_HAS_CPU_MIPS64_R1
1262 select CPU_HAS_PREFETCH
1263 select CPU_SUPPORTS_32BIT_KERNEL
1264 select CPU_SUPPORTS_64BIT_KERNEL
1265 select CPU_SUPPORTS_HIGHMEM
1266 select CPU_SUPPORTS_HUGEPAGES
1268 Choose this option to build a kernel for release 1 or later of the
1269 MIPS64 architecture. Many modern embedded systems with a 64-bit
1270 MIPS processor are based on a MIPS64 processor. If you know the
1271 specific type of processor in your system, choose those that one
1272 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1273 Release 2 of the MIPS64 architecture is available since several
1274 years so chances are you even have a MIPS64 Release 2 processor
1275 in which case you should choose CPU_MIPS64_R2 instead for better
1278 config CPU_MIPS64_R2
1279 bool "MIPS64 Release 2"
1280 depends on SYS_HAS_CPU_MIPS64_R2
1281 select CPU_HAS_PREFETCH
1282 select CPU_SUPPORTS_32BIT_KERNEL
1283 select CPU_SUPPORTS_64BIT_KERNEL
1284 select CPU_SUPPORTS_HIGHMEM
1285 select CPU_SUPPORTS_HUGEPAGES
1287 Choose this option to build a kernel for release 2 or later of the
1288 MIPS64 architecture. Many modern embedded systems with a 64-bit
1289 MIPS processor are based on a MIPS64 processor. If you know the
1290 specific type of processor in your system, choose those that one
1291 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1295 depends on SYS_HAS_CPU_R3000
1297 select CPU_SUPPORTS_32BIT_KERNEL
1298 select CPU_SUPPORTS_HIGHMEM
1300 Please make sure to pick the right CPU type. Linux/MIPS is not
1301 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1302 *not* work on R4000 machines and vice versa. However, since most
1303 of the supported machines have an R4000 (or similar) CPU, R4x00
1304 might be a safe bet. If the resulting kernel does not work,
1305 try to recompile with R3000.
1309 depends on SYS_HAS_CPU_TX39XX
1310 select CPU_SUPPORTS_32BIT_KERNEL
1314 depends on SYS_HAS_CPU_VR41XX
1315 select CPU_SUPPORTS_32BIT_KERNEL
1316 select CPU_SUPPORTS_64BIT_KERNEL
1318 The options selects support for the NEC VR4100 series of processors.
1319 Only choose this option if you have one of these processors as a
1320 kernel built with this option will not run on any other type of
1321 processor or vice versa.
1325 depends on SYS_HAS_CPU_R4300
1326 select CPU_SUPPORTS_32BIT_KERNEL
1327 select CPU_SUPPORTS_64BIT_KERNEL
1329 MIPS Technologies R4300-series processors.
1333 depends on SYS_HAS_CPU_R4X00
1334 select CPU_SUPPORTS_32BIT_KERNEL
1335 select CPU_SUPPORTS_64BIT_KERNEL
1336 select CPU_SUPPORTS_HUGEPAGES
1338 MIPS Technologies R4000-series processors other than 4300, including
1339 the R4000, R4400, R4600, and 4700.
1343 depends on SYS_HAS_CPU_TX49XX
1344 select CPU_HAS_PREFETCH
1345 select CPU_SUPPORTS_32BIT_KERNEL
1346 select CPU_SUPPORTS_64BIT_KERNEL
1347 select CPU_SUPPORTS_HUGEPAGES
1351 depends on SYS_HAS_CPU_R5000
1352 select CPU_SUPPORTS_32BIT_KERNEL
1353 select CPU_SUPPORTS_64BIT_KERNEL
1354 select CPU_SUPPORTS_HUGEPAGES
1356 MIPS Technologies R5000-series processors other than the Nevada.
1360 depends on SYS_HAS_CPU_R5432
1361 select CPU_SUPPORTS_32BIT_KERNEL
1362 select CPU_SUPPORTS_64BIT_KERNEL
1363 select CPU_SUPPORTS_HUGEPAGES
1367 depends on SYS_HAS_CPU_R5500
1368 select CPU_SUPPORTS_32BIT_KERNEL
1369 select CPU_SUPPORTS_64BIT_KERNEL
1370 select CPU_SUPPORTS_HUGEPAGES
1372 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1377 depends on EXPERIMENTAL
1378 depends on SYS_HAS_CPU_R6000
1379 select CPU_SUPPORTS_32BIT_KERNEL
1381 MIPS Technologies R6000 and R6000A series processors. Note these
1382 processors are extremely rare and the support for them is incomplete.
1386 depends on SYS_HAS_CPU_NEVADA
1387 select CPU_SUPPORTS_32BIT_KERNEL
1388 select CPU_SUPPORTS_64BIT_KERNEL
1389 select CPU_SUPPORTS_HUGEPAGES
1391 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1395 depends on EXPERIMENTAL
1396 depends on SYS_HAS_CPU_R8000
1397 select CPU_HAS_PREFETCH
1398 select CPU_SUPPORTS_64BIT_KERNEL
1400 MIPS Technologies R8000 processors. Note these processors are
1401 uncommon and the support for them is incomplete.
1405 depends on SYS_HAS_CPU_R10000
1406 select CPU_HAS_PREFETCH
1407 select CPU_SUPPORTS_32BIT_KERNEL
1408 select CPU_SUPPORTS_64BIT_KERNEL
1409 select CPU_SUPPORTS_HIGHMEM
1410 select CPU_SUPPORTS_HUGEPAGES
1412 MIPS Technologies R10000-series processors.
1416 depends on SYS_HAS_CPU_RM7000
1417 select CPU_HAS_PREFETCH
1418 select CPU_SUPPORTS_32BIT_KERNEL
1419 select CPU_SUPPORTS_64BIT_KERNEL
1420 select CPU_SUPPORTS_HIGHMEM
1421 select CPU_SUPPORTS_HUGEPAGES
1425 depends on SYS_HAS_CPU_SB1
1426 select CPU_SUPPORTS_32BIT_KERNEL
1427 select CPU_SUPPORTS_64BIT_KERNEL
1428 select CPU_SUPPORTS_HIGHMEM
1429 select CPU_SUPPORTS_HUGEPAGES
1430 select WEAK_ORDERING
1432 config CPU_CAVIUM_OCTEON
1433 bool "Cavium Octeon processor"
1434 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1435 select ARCH_SPARSEMEM_ENABLE
1436 select CPU_HAS_PREFETCH
1437 select CPU_SUPPORTS_64BIT_KERNEL
1438 select SYS_SUPPORTS_SMP
1439 select NR_CPUS_DEFAULT_16
1440 select WEAK_ORDERING
1441 select CPU_SUPPORTS_HIGHMEM
1442 select CPU_SUPPORTS_HUGEPAGES
1446 The Cavium Octeon processor is a highly integrated chip containing
1447 many ethernet hardware widgets for networking tasks. The processor
1448 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1449 Full details can be found at http://www.caviumnetworks.com.
1451 config CPU_BMIPS3300
1453 depends on SYS_HAS_CPU_BMIPS3300
1456 Broadcom BMIPS3300 processors.
1458 config CPU_BMIPS4350
1460 depends on SYS_HAS_CPU_BMIPS4350
1462 select SYS_SUPPORTS_SMP
1463 select SYS_SUPPORTS_HOTPLUG_CPU
1465 Broadcom BMIPS4350 ("VIPER") processors.
1467 config CPU_BMIPS4380
1469 depends on SYS_HAS_CPU_BMIPS4380
1471 select SYS_SUPPORTS_SMP
1472 select SYS_SUPPORTS_HOTPLUG_CPU
1474 Broadcom BMIPS4380 processors.
1476 config CPU_BMIPS5000
1478 depends on SYS_HAS_CPU_BMIPS5000
1480 select CPU_SUPPORTS_HIGHMEM
1481 select MIPS_CPU_SCACHE
1482 select SYS_SUPPORTS_SMP
1483 select SYS_SUPPORTS_HOTPLUG_CPU
1485 Broadcom BMIPS5000 processors.
1488 bool "Netlogic XLR SoC"
1489 depends on SYS_HAS_CPU_XLR
1490 select CPU_SUPPORTS_32BIT_KERNEL
1491 select CPU_SUPPORTS_64BIT_KERNEL
1492 select CPU_SUPPORTS_HIGHMEM
1493 select CPU_SUPPORTS_HUGEPAGES
1494 select WEAK_ORDERING
1495 select WEAK_REORDERING_BEYOND_LLSC
1497 Netlogic Microsystems XLR/XLS processors.
1500 bool "Netlogic XLP SoC"
1501 depends on SYS_HAS_CPU_XLP
1502 select CPU_SUPPORTS_32BIT_KERNEL
1503 select CPU_SUPPORTS_64BIT_KERNEL
1504 select CPU_SUPPORTS_HIGHMEM
1506 select WEAK_ORDERING
1507 select WEAK_REORDERING_BEYOND_LLSC
1508 select CPU_HAS_PREFETCH
1511 Netlogic Microsystems XLP processors.
1515 config CPU_NOP_WORKAROUNDS
1518 config CPU_JUMP_WORKAROUNDS
1521 config CPU_LOONGSON2F_WORKAROUNDS
1522 bool "Loongson 2F Workarounds"
1524 select CPU_NOP_WORKAROUNDS
1525 select CPU_JUMP_WORKAROUNDS
1527 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1528 require workarounds. Without workarounds the system may hang
1529 unexpectedly. For more information please refer to the gas
1530 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1532 Loongson 2F03 and later have fixed these issues and no workarounds
1533 are needed. The workarounds have no significant side effect on them
1534 but may decrease the performance of the system so this option should
1535 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1538 If unsure, please say Y.
1539 endif # CPU_LOONGSON2F
1541 config SYS_SUPPORTS_ZBOOT
1543 select HAVE_KERNEL_GZIP
1544 select HAVE_KERNEL_BZIP2
1545 select HAVE_KERNEL_LZMA
1546 select HAVE_KERNEL_LZO
1548 config SYS_SUPPORTS_ZBOOT_UART16550
1550 select SYS_SUPPORTS_ZBOOT
1552 config CPU_LOONGSON2
1554 select CPU_SUPPORTS_32BIT_KERNEL
1555 select CPU_SUPPORTS_64BIT_KERNEL
1556 select CPU_SUPPORTS_HIGHMEM
1557 select CPU_SUPPORTS_HUGEPAGES
1559 config CPU_LOONGSON1
1563 select CPU_HAS_PREFETCH
1564 select CPU_SUPPORTS_32BIT_KERNEL
1565 select CPU_SUPPORTS_HIGHMEM
1570 select CPU_SUPPORTS_32BIT_KERNEL
1571 select DMA_NONCOHERENT
1573 select SWAP_IO_SPACE
1574 select WEAK_ORDERING
1576 config SYS_HAS_CPU_LOONGSON2E
1579 config SYS_HAS_CPU_LOONGSON2F
1581 select CPU_SUPPORTS_CPUFREQ
1582 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1583 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1585 config SYS_HAS_CPU_LOONGSON1B
1588 config SYS_HAS_CPU_MIPS32_R1
1591 config SYS_HAS_CPU_MIPS32_R2
1594 config SYS_HAS_CPU_MIPS64_R1
1597 config SYS_HAS_CPU_MIPS64_R2
1600 config SYS_HAS_CPU_R3000
1603 config SYS_HAS_CPU_TX39XX
1606 config SYS_HAS_CPU_VR41XX
1609 config SYS_HAS_CPU_R4300
1612 config SYS_HAS_CPU_R4X00
1615 config SYS_HAS_CPU_TX49XX
1618 config SYS_HAS_CPU_R5000
1621 config SYS_HAS_CPU_R5432
1624 config SYS_HAS_CPU_R5500
1627 config SYS_HAS_CPU_R6000
1630 config SYS_HAS_CPU_NEVADA
1633 config SYS_HAS_CPU_R8000
1636 config SYS_HAS_CPU_R10000
1639 config SYS_HAS_CPU_RM7000
1642 config SYS_HAS_CPU_SB1
1645 config SYS_HAS_CPU_CAVIUM_OCTEON
1648 config SYS_HAS_CPU_BMIPS3300
1651 config SYS_HAS_CPU_BMIPS4350
1654 config SYS_HAS_CPU_BMIPS4380
1657 config SYS_HAS_CPU_BMIPS5000
1660 config SYS_HAS_CPU_XLR
1663 config SYS_HAS_CPU_XLP
1667 # CPU may reorder R->R, R->W, W->R, W->W
1668 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1670 config WEAK_ORDERING
1674 # CPU may reorder reads and writes beyond LL/SC
1675 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1677 config WEAK_REORDERING_BEYOND_LLSC
1682 # These two indicate any level of the MIPS32 and MIPS64 architecture
1686 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1690 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1693 # These two indicate the revision of the architecture, either Release 1 or Release 2
1697 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1701 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1703 config SYS_SUPPORTS_32BIT_KERNEL
1705 config SYS_SUPPORTS_64BIT_KERNEL
1707 config CPU_SUPPORTS_32BIT_KERNEL
1709 config CPU_SUPPORTS_64BIT_KERNEL
1711 config CPU_SUPPORTS_CPUFREQ
1713 config CPU_SUPPORTS_ADDRWINCFG
1715 config CPU_SUPPORTS_HUGEPAGES
1717 config CPU_SUPPORTS_UNCACHED_ACCELERATED
1719 config MIPS_PGD_C0_CONTEXT
1721 default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
1724 # Set to y for ptrace access to watch registers.
1726 config HARDWARE_WATCHPOINTS
1728 default y if CPU_MIPSR1 || CPU_MIPSR2
1733 prompt "Kernel code model"
1735 You should only select this option if you have a workload that
1736 actually benefits from 64-bit processing or if your machine has
1737 large memory. You will only be presented a single option in this
1738 menu if your system does not support both 32-bit and 64-bit kernels.
1741 bool "32-bit kernel"
1742 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1745 Select this option if you want to build a 32-bit kernel.
1747 bool "64-bit kernel"
1748 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1749 select HAVE_SYSCALL_WRAPPERS
1751 Select this option if you want to build a 64-bit kernel.
1756 prompt "Kernel page size"
1757 default PAGE_SIZE_4KB
1759 config PAGE_SIZE_4KB
1761 depends on !CPU_LOONGSON2
1763 This option select the standard 4kB Linux page size. On some
1764 R3000-family processors this is the only available page size. Using
1765 4kB page size will minimize memory consumption and is therefore
1766 recommended for low memory systems.
1768 config PAGE_SIZE_8KB
1770 depends on (EXPERIMENTAL && CPU_R8000) || CPU_CAVIUM_OCTEON
1772 Using 8kB page size will result in higher performance kernel at
1773 the price of higher memory consumption. This option is available
1774 only on R8000 and cnMIPS processors. Note that you will need a
1775 suitable Linux distribution to support this.
1777 config PAGE_SIZE_16KB
1779 depends on !CPU_R3000 && !CPU_TX39XX
1781 Using 16kB page size will result in higher performance kernel at
1782 the price of higher memory consumption. This option is available on
1783 all non-R3000 family processors. Note that you will need a suitable
1784 Linux distribution to support this.
1786 config PAGE_SIZE_32KB
1788 depends on CPU_CAVIUM_OCTEON
1790 Using 32kB page size will result in higher performance kernel at
1791 the price of higher memory consumption. This option is available
1792 only on cnMIPS cores. Note that you will need a suitable Linux
1793 distribution to support this.
1795 config PAGE_SIZE_64KB
1797 depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
1799 Using 64kB page size will result in higher performance kernel at
1800 the price of higher memory consumption. This option is available on
1801 all non-R3000 family processor. Not that at the time of this
1802 writing this option is still high experimental.
1806 config FORCE_MAX_ZONEORDER
1807 int "Maximum zone order"
1808 range 14 64 if HUGETLB_PAGE && PAGE_SIZE_64KB
1809 default "14" if HUGETLB_PAGE && PAGE_SIZE_64KB
1810 range 13 64 if HUGETLB_PAGE && PAGE_SIZE_32KB
1811 default "13" if HUGETLB_PAGE && PAGE_SIZE_32KB
1812 range 12 64 if HUGETLB_PAGE && PAGE_SIZE_16KB
1813 default "12" if HUGETLB_PAGE && PAGE_SIZE_16KB
1817 The kernel memory allocator divides physically contiguous memory
1818 blocks into "zones", where each zone is a power of two number of
1819 pages. This option selects the largest power of two that the kernel
1820 keeps in the memory allocator. If you need to allocate very large
1821 blocks of physically contiguous memory, then you may need to
1822 increase this value.
1824 This config option is actually maximum order plus one. For example,
1825 a value of 11 means that the largest free memory block is 2^10 pages.
1827 The page size is not necessarily 4KB. Keep this in mind
1828 when choosing a value for this option.
1833 config IP22_CPU_SCACHE
1838 # Support for a MIPS32 / MIPS64 style S-caches
1840 config MIPS_CPU_SCACHE
1844 config R5000_CPU_SCACHE
1848 config RM7000_CPU_SCACHE
1852 config SIBYTE_DMA_PAGEOPS
1853 bool "Use DMA to clear/copy pages"
1856 Instead of using the CPU to zero and copy pages, use a Data Mover
1857 channel. These DMA channels are otherwise unused by the standard
1858 SiByte Linux port. Seems to give a small performance benefit.
1860 config CPU_HAS_PREFETCH
1863 config CPU_GENERIC_DUMP_TLB
1865 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
1869 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1871 config CPU_R4K_CACHE_TLB
1873 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1876 prompt "MIPS MT options"
1878 config MIPS_MT_DISABLED
1879 bool "Disable multithreading support."
1881 Use this option if your workload can't take advantage of
1882 MIPS hardware multithreading support. On systems that don't have
1883 the option of an MT-enabled processor this option will be the only
1884 option in this menu.
1887 bool "Use 1 TC on each available VPE for SMP"
1888 depends on SYS_SUPPORTS_MULTITHREADING
1889 select CPU_MIPSR2_IRQ_VI
1890 select CPU_MIPSR2_IRQ_EI
1892 select NR_CPUS_DEFAULT_2
1894 select SYS_SUPPORTS_SCHED_SMT if SMP
1895 select SYS_SUPPORTS_SMP
1897 select MIPS_PERF_SHARED_TC_COUNTERS
1899 This is a kernel model which is known a VSMP but lately has been
1900 marketesed into SMVP.
1901 Virtual SMP uses the processor's VPEs to implement virtual
1902 processors. In currently available configuration of the 34K processor
1903 this allows for a dual processor. Both processors will share the same
1904 primary caches; each will obtain the half of the TLB for it's own
1905 exclusive use. For a layman this model can be described as similar to
1906 what Intel calls Hyperthreading.
1908 For further information see http://www.linux-mips.org/wiki/34K#VSMP
1911 bool "SMTC: Use all TCs on all VPEs for SMP"
1912 depends on CPU_MIPS32_R2
1913 #depends on CPU_MIPS64_R2 # once there is hardware ...
1914 depends on SYS_SUPPORTS_MULTITHREADING
1915 select CPU_MIPSR2_IRQ_VI
1916 select CPU_MIPSR2_IRQ_EI
1918 select NR_CPUS_DEFAULT_8
1920 select SYS_SUPPORTS_SMP
1923 This is a kernel model which is known a SMTC or lately has been
1924 marketesed into SMVP.
1925 is presenting the available TC's of the core as processors to Linux.
1926 On currently available 34K processors this means a Linux system will
1927 see up to 5 processors. The implementation of the SMTC kernel differs
1928 significantly from VSMP and cannot efficiently coexist in the same
1929 kernel binary so the choice between VSMP and SMTC is a compile time
1932 For further information see http://www.linux-mips.org/wiki/34K#SMTC
1940 bool "SMT (multithreading) scheduler support"
1941 depends on SYS_SUPPORTS_SCHED_SMT
1944 SMT scheduler support improves the CPU scheduler's decision making
1945 when dealing with MIPS MT enabled cores at a cost of slightly
1946 increased overhead in some places. If unsure say N here.
1948 config SYS_SUPPORTS_SCHED_SMT
1951 config SYS_SUPPORTS_MULTITHREADING
1954 config MIPS_MT_FPAFF
1955 bool "Dynamic FPU affinity for FP-intensive threads"
1957 depends on MIPS_MT_SMP || MIPS_MT_SMTC
1959 config MIPS_VPE_LOADER
1960 bool "VPE loader support."
1961 depends on SYS_SUPPORTS_MULTITHREADING
1962 select CPU_MIPSR2_IRQ_VI
1963 select CPU_MIPSR2_IRQ_EI
1966 Includes a loader for loading an elf relocatable object
1967 onto another VPE and running it.
1969 config MIPS_MT_SMTC_IM_BACKSTOP
1970 bool "Use per-TC register bits as backstop for inhibited IM bits"
1971 depends on MIPS_MT_SMTC
1974 To support multiple TC microthreads acting as "CPUs" within
1975 a VPE, VPE-wide interrupt mask bits must be specially manipulated
1976 during interrupt handling. To support legacy drivers and interrupt
1977 controller management code, SMTC has a "backstop" to track and
1978 if necessary restore the interrupt mask. This has some performance
1979 impact on interrupt service overhead.
1981 config MIPS_MT_SMTC_IRQAFF
1982 bool "Support IRQ affinity API"
1983 depends on MIPS_MT_SMTC
1986 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
1987 for SMTC Linux kernel. Requires platform support, of which
1988 an example can be found in the MIPS kernel i8259 and Malta
1989 platform code. Adds some overhead to interrupt dispatch, and
1990 should be used only if you know what you are doing.
1992 config MIPS_VPE_LOADER_TOM
1993 bool "Load VPE program into memory hidden from linux"
1994 depends on MIPS_VPE_LOADER
1997 The loader can use memory that is present but has been hidden from
1998 Linux using the kernel command line option "mem=xxMB". It's up to
1999 you to ensure the amount you put in the option and the space your
2000 program requires is less or equal to the amount physically present.
2002 # this should possibly be in drivers/char, but it is rather cpu related. Hmmm
2003 config MIPS_VPE_APSP_API
2004 bool "Enable support for AP/SP API (RTLX)"
2005 depends on MIPS_VPE_LOADER
2009 bool "MIPS CMP framework support"
2010 depends on SYS_SUPPORTS_MIPS_CMP
2012 select SYS_SUPPORTS_SMP
2013 select SYS_SUPPORTS_SCHED_SMT if SMP
2014 select WEAK_ORDERING
2017 This is a placeholder option for the GCMP work. It will need to
2018 be handled differently...
2020 config SB1_PASS_1_WORKAROUNDS
2022 depends on CPU_SB1_PASS_1
2025 config SB1_PASS_2_WORKAROUNDS
2027 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2030 config SB1_PASS_2_1_WORKAROUNDS
2032 depends on CPU_SB1 && CPU_SB1_PASS_2
2035 config 64BIT_PHYS_ADDR
2038 config ARCH_PHYS_ADDR_T_64BIT
2039 def_bool 64BIT_PHYS_ADDR
2041 config CPU_HAS_SMARTMIPS
2042 depends on SYS_SUPPORTS_SMARTMIPS
2043 bool "Support for the SmartMIPS ASE"
2045 SmartMIPS is a extension of the MIPS32 architecture aimed at
2046 increased security at both hardware and software level for
2047 smartcards. Enabling this option will allow proper use of the
2048 SmartMIPS instructions by Linux applications. However a kernel with
2049 this option will not work on a MIPS core without SmartMIPS core. If
2050 you don't know you probably don't have SmartMIPS and should say N
2060 # Vectored interrupt mode is an R2 feature
2062 config CPU_MIPSR2_IRQ_VI
2066 # Extended interrupt mode is an R2 feature
2068 config CPU_MIPSR2_IRQ_EI
2073 depends on !CPU_R3000
2079 config CPU_DADDI_WORKAROUNDS
2082 config CPU_R4000_WORKAROUNDS
2084 select CPU_R4400_WORKAROUNDS
2086 config CPU_R4400_WORKAROUNDS
2090 # - Highmem only makes sense for the 32-bit kernel.
2091 # - The current highmem code will only work properly on physically indexed
2092 # caches such as R3000, SB1, R7000 or those that look like they're virtually
2093 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2094 # moment we protect the user and offer the highmem option only on machines
2095 # where it's known to be safe. This will not offer highmem on a few systems
2096 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2097 # indexed CPUs but we're playing safe.
2098 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2099 # know they might have memory configurations that could make use of highmem
2103 bool "High Memory Support"
2104 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
2106 config CPU_SUPPORTS_HIGHMEM
2109 config SYS_SUPPORTS_HIGHMEM
2112 config SYS_SUPPORTS_SMARTMIPS
2115 config ARCH_FLATMEM_ENABLE
2117 depends on !NUMA && !CPU_LOONGSON2
2119 config ARCH_DISCONTIGMEM_ENABLE
2121 default y if SGI_IP27
2123 Say Y to support efficient handling of discontiguous physical memory,
2124 for architectures which are either NUMA (Non-Uniform Memory Access)
2125 or have huge holes in the physical address space for other reasons.
2126 See <file:Documentation/vm/numa> for more.
2128 config ARCH_SPARSEMEM_ENABLE
2130 select SPARSEMEM_STATIC
2134 depends on SYS_SUPPORTS_NUMA
2136 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2137 Access). This option improves performance on systems with more
2138 than two nodes; on two node systems it is generally better to
2139 leave it disabled; on single node systems disable this option
2142 config SYS_SUPPORTS_NUMA
2148 depends on NEED_MULTIPLE_NODES
2150 config HW_PERF_EVENTS
2151 bool "Enable hardware performance counter support for perf events"
2152 depends on PERF_EVENTS && !MIPS_MT_SMTC && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP)
2155 Enable hardware performance counter support for perf events. If
2156 disabled, perf events will use software events only.
2161 bool "Multi-Processing support"
2162 depends on SYS_SUPPORTS_SMP
2163 select USE_GENERIC_SMP_HELPERS
2165 This enables support for systems with more than one CPU. If you have
2166 a system with only one CPU, like most personal computers, say N. If
2167 you have a system with more than one CPU, say Y.
2169 If you say N here, the kernel will run on single and multiprocessor
2170 machines, but will use only one CPU of a multiprocessor machine. If
2171 you say Y here, the kernel will run on many, but not all,
2172 singleprocessor machines. On a singleprocessor machine, the kernel
2173 will run faster if you say N here.
2175 People using multiprocessor machines who say Y here should also say
2176 Y to "Enhanced Real Time Clock Support", below.
2178 See also the SMP-HOWTO available at
2179 <http://www.tldp.org/docs.html#howto>.
2181 If you don't know what to do here, say N.
2186 config SYS_SUPPORTS_MIPS_CMP
2189 config SYS_SUPPORTS_SMP
2192 config NR_CPUS_DEFAULT_1
2195 config NR_CPUS_DEFAULT_2
2198 config NR_CPUS_DEFAULT_4
2201 config NR_CPUS_DEFAULT_8
2204 config NR_CPUS_DEFAULT_16
2207 config NR_CPUS_DEFAULT_32
2210 config NR_CPUS_DEFAULT_64
2214 int "Maximum number of CPUs (2-64)"
2215 range 1 64 if NR_CPUS_DEFAULT_1
2217 default "1" if NR_CPUS_DEFAULT_1
2218 default "2" if NR_CPUS_DEFAULT_2
2219 default "4" if NR_CPUS_DEFAULT_4
2220 default "8" if NR_CPUS_DEFAULT_8
2221 default "16" if NR_CPUS_DEFAULT_16
2222 default "32" if NR_CPUS_DEFAULT_32
2223 default "64" if NR_CPUS_DEFAULT_64
2225 This allows you to specify the maximum number of CPUs which this
2226 kernel will support. The maximum supported value is 32 for 32-bit
2227 kernel and 64 for 64-bit kernels; the minimum value which makes
2228 sense is 1 for Qemu (useful only for kernel debugging purposes)
2229 and 2 for all others.
2231 This is purely to save memory - each supported CPU adds
2232 approximately eight kilobytes to the kernel image. For best
2233 performance should round up your number of processors to the next
2236 config MIPS_PERF_SHARED_TC_COUNTERS
2240 # Timer Interrupt Frequency Configuration
2244 prompt "Timer frequency"
2247 Allows the configuration of the timer frequency.
2250 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2253 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2256 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2259 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2262 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2265 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2268 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2272 config SYS_SUPPORTS_48HZ
2275 config SYS_SUPPORTS_100HZ
2278 config SYS_SUPPORTS_128HZ
2281 config SYS_SUPPORTS_250HZ
2284 config SYS_SUPPORTS_256HZ
2287 config SYS_SUPPORTS_1000HZ
2290 config SYS_SUPPORTS_1024HZ
2293 config SYS_SUPPORTS_ARBIT_HZ
2295 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2296 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2297 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2298 !SYS_SUPPORTS_1024HZ
2303 default 100 if HZ_100
2304 default 128 if HZ_128
2305 default 250 if HZ_250
2306 default 256 if HZ_256
2307 default 1000 if HZ_1000
2308 default 1024 if HZ_1024
2310 source "kernel/Kconfig.preempt"
2313 bool "Kexec system call (EXPERIMENTAL)"
2314 depends on EXPERIMENTAL
2316 kexec is a system call that implements the ability to shutdown your
2317 current kernel, and to start another kernel. It is like a reboot
2318 but it is independent of the system firmware. And like a reboot
2319 you can start any kernel with it, not just Linux.
2321 The name comes from the similarity to the exec system call.
2323 It is an ongoing process to be certain the hardware in a machine
2324 is properly shutdown, so do not be surprised if this code does not
2325 initially work for you. It may help to enable device hotplugging
2326 support. As of this writing the exact hardware interface is
2327 strongly in flux, so no good recommendation can be made.
2330 bool "Kernel crash dumps"
2332 Generate crash dump after being started by kexec.
2333 This should be normally only set in special crash dump kernels
2334 which are loaded in the main kernel with kexec-tools into
2335 a specially reserved region and then later executed after
2336 a crash by kdump/kexec. The crash dump kernel must be compiled
2337 to a memory address not used by the main kernel or firmware using
2340 config PHYSICAL_START
2341 hex "Physical address where the kernel is loaded"
2342 default "0xffffffff84000000" if 64BIT
2343 default "0x84000000" if 32BIT
2344 depends on CRASH_DUMP
2346 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2347 If you plan to use kernel for capturing the crash dump change
2348 this value to start of the reserved region (the "X" value as
2349 specified in the "crashkernel=YM@XM" command line boot parameter
2350 passed to the panic-ed kernel).
2353 bool "Enable seccomp to safely compute untrusted bytecode"
2357 This kernel feature is useful for number crunching applications
2358 that may need to compute untrusted bytecode during their
2359 execution. By using pipes or other transports made available to
2360 the process as file descriptors supporting the read/write
2361 syscalls, it's possible to isolate those applications in
2362 their own address space using seccomp. Once seccomp is
2363 enabled via /proc/<pid>/seccomp, it cannot be disabled
2364 and the task is only allowed to execute a few safe syscalls
2365 defined by each seccomp mode.
2367 If unsure, say Y. Only embedded should say N here.
2372 select OF_EARLY_FLATTREE
2377 config LOCKDEP_SUPPORT
2381 config STACKTRACE_SUPPORT
2385 source "init/Kconfig"
2387 source "kernel/Kconfig.freezer"
2389 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2397 bool "Support for PCI controller"
2398 depends on HW_HAS_PCI
2400 select GENERIC_PCI_IOMAP
2401 select NO_GENERIC_PCI_IOPORT_MAP
2403 Find out whether you have a PCI motherboard. PCI is the name of a
2404 bus system, i.e. the way the CPU talks to the other stuff inside
2405 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2411 source "drivers/pci/Kconfig"
2413 source "drivers/pci/pcie/Kconfig"
2416 # ISA support is now enabled via select. Too many systems still have the one
2417 # or other ISA chip on the board that users don't know about so don't expect
2418 # users to choose the right thing ...
2425 depends on HW_HAS_EISA
2427 select GENERIC_ISA_DMA
2429 The Extended Industry Standard Architecture (EISA) bus was
2430 developed as an open alternative to the IBM MicroChannel bus.
2432 The EISA bus provided some of the features of the IBM MicroChannel
2433 bus while maintaining backward compatibility with cards made for
2434 the older ISA bus. The EISA bus saw limited use between 1988 and
2435 1995 when it was made obsolete by the PCI bus.
2437 Say Y here if you are building a kernel for an EISA-based machine.
2441 source "drivers/eisa/Kconfig"
2444 bool "TURBOchannel support"
2445 depends on MACH_DECSTATION
2447 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2448 processors. TURBOchannel programming specifications are available
2450 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2452 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2453 Linux driver support status is documented at:
2454 <http://www.linux-mips.org/wiki/DECstation>
2464 select MIPS_EXTERNAL_TIMER
2469 source "drivers/pcmcia/Kconfig"
2471 source "drivers/pci/hotplug/Kconfig"
2474 bool "RapidIO support"
2478 If you say Y here, the kernel will include drivers and
2479 infrastructure code to support RapidIO interconnect devices.
2481 source "drivers/rapidio/Kconfig"
2485 menu "Executable file formats"
2487 source "fs/Kconfig.binfmt"
2492 config MIPS32_COMPAT
2493 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2496 Select this option if you want Linux/MIPS 32-bit binary
2497 compatibility. Since all software available for Linux/MIPS is
2498 currently 32-bit you should say Y here.
2502 depends on MIPS32_COMPAT
2503 select ARCH_WANT_OLD_COMPAT_IPC
2506 config SYSVIPC_COMPAT
2508 depends on COMPAT && SYSVIPC
2512 bool "Kernel support for o32 binaries"
2513 depends on MIPS32_COMPAT
2515 Select this option if you want to run o32 binaries. These are pure
2516 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2517 existing binaries are in this format.
2522 bool "Kernel support for n32 binaries"
2523 depends on MIPS32_COMPAT
2525 Select this option if you want to run n32 binaries. These are
2526 64-bit binaries using 32-bit quantities for addressing and certain
2527 data that would normally be 64-bit. They are used in special
2534 default y if MIPS32_O32 || MIPS32_N32
2538 menu "Power management options"
2540 config ARCH_HIBERNATION_POSSIBLE
2542 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2544 config ARCH_SUSPEND_POSSIBLE
2546 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2548 source "kernel/power/Kconfig"
2552 source "arch/mips/kernel/cpufreq/Kconfig"
2554 source "net/Kconfig"
2556 source "drivers/Kconfig"
2558 source "drivers/firmware/Kconfig"
2562 source "arch/mips/Kconfig.debug"
2564 source "security/Kconfig"
2566 source "crypto/Kconfig"
2568 source "lib/Kconfig"