4 select HAVE_GENERIC_DMA_COHERENT
8 select HAVE_PERF_EVENTS
9 select PERF_USE_VMALLOC
11 select ARCH_HAVE_CUSTOM_GPIO_H
12 select HAVE_FUNCTION_TRACER
13 select HAVE_FUNCTION_TRACE_MCOUNT_TEST
14 select HAVE_DYNAMIC_FTRACE
15 select HAVE_FTRACE_MCOUNT_RECORD
16 select HAVE_C_RECORDMCOUNT
17 select HAVE_FUNCTION_GRAPH_TRACER
19 select HAVE_KRETPROBES
20 select HAVE_DEBUG_KMEMLEAK
21 select ARCH_BINFMT_ELF_RANDOMIZE_PIE
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
42 select MODULES_USE_ELF_RELA if 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"
110 select DMA_NONCOHERENT
113 select SYS_SUPPORTS_32BIT_KERNEL
114 select SYS_SUPPORTS_LITTLE_ENDIAN
116 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.
419 bool "PMC-Sierra Yosemite eval board"
428 select SYS_HAS_CPU_RM9000
429 select SYS_HAS_EARLY_PRINTK
430 select SYS_SUPPORTS_32BIT_KERNEL
431 select SYS_SUPPORTS_64BIT_KERNEL
432 select SYS_SUPPORTS_BIG_ENDIAN
433 select SYS_SUPPORTS_HIGHMEM
434 select SYS_SUPPORTS_SMP
436 Yosemite is an evaluation board for the RM9000x2 processor
437 manufactured by PMC-Sierra.
443 select CPU_MIPSR2_IRQ_VI
444 select CPU_MIPSR2_IRQ_EI
446 select DMA_NONCOHERENT
448 select SYS_HAS_EARLY_PRINTK
449 select SYS_HAS_CPU_MIPS32_R2
450 select SYS_SUPPORTS_32BIT_KERNEL
451 select SYS_SUPPORTS_BIG_ENDIAN
452 select SYS_SUPPORTS_HIGHMEM
453 select USB_OHCI_LITTLE_ENDIAN
455 This enables support for the Cisco PowerTV Platform.
458 bool "SGI IP22 (Indy/Indigo2)"
464 select DEFAULT_SGI_PARTITION
465 select DMA_NONCOHERENT
469 select IP22_CPU_SCACHE
471 select GENERIC_ISA_DMA_SUPPORT_BROKEN
473 select SGI_HAS_INDYDOG
479 select SYS_HAS_CPU_R4X00
480 select SYS_HAS_CPU_R5000
482 # Disable EARLY_PRINTK for now since it leads to overwritten prom
483 # memory during early boot on some machines.
485 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
486 # for a more details discussion
488 # select SYS_HAS_EARLY_PRINTK
489 select SYS_SUPPORTS_32BIT_KERNEL
490 select SYS_SUPPORTS_64BIT_KERNEL
491 select SYS_SUPPORTS_BIG_ENDIAN
493 This are the SGI Indy, Challenge S and Indigo2, as well as certain
494 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
495 that runs on these, say Y here.
498 bool "SGI IP27 (Origin200/2000)"
502 select DEFAULT_SGI_PARTITION
504 select SYS_HAS_EARLY_PRINTK
506 select NR_CPUS_DEFAULT_64
507 select SYS_HAS_CPU_R10000
508 select SYS_SUPPORTS_64BIT_KERNEL
509 select SYS_SUPPORTS_BIG_ENDIAN
510 select SYS_SUPPORTS_NUMA
511 select SYS_SUPPORTS_SMP
513 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
514 workstations. To compile a Linux kernel that runs on these, say Y
518 bool "SGI IP28 (Indigo2 R10k) (EXPERIMENTAL)"
519 depends on EXPERIMENTAL
525 select DEFAULT_SGI_PARTITION
526 select DMA_NONCOHERENT
527 select GENERIC_ISA_DMA_SUPPORT_BROKEN
533 select SGI_HAS_INDYDOG
539 select SYS_HAS_CPU_R10000
541 # Disable EARLY_PRINTK for now since it leads to overwritten prom
542 # memory during early boot on some machines.
544 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
545 # for a more details discussion
547 # select SYS_HAS_EARLY_PRINTK
548 select SYS_SUPPORTS_64BIT_KERNEL
549 select SYS_SUPPORTS_BIG_ENDIAN
551 This is the SGI Indigo2 with R10000 processor. To compile a Linux
552 kernel that runs on these, say Y here.
561 select DMA_NONCOHERENT
564 select R5000_CPU_SCACHE
565 select RM7000_CPU_SCACHE
566 select SYS_HAS_CPU_R5000
567 select SYS_HAS_CPU_R10000 if BROKEN
568 select SYS_HAS_CPU_RM7000
569 select SYS_HAS_CPU_NEVADA
570 select SYS_SUPPORTS_64BIT_KERNEL
571 select SYS_SUPPORTS_BIG_ENDIAN
573 If you want this kernel to run on SGI O2 workstation, say Y here.
576 bool "Sibyte BCM91120C-CRhine"
577 depends on EXPERIMENTAL
580 select SIBYTE_BCM1120
582 select SYS_HAS_CPU_SB1
583 select SYS_SUPPORTS_BIG_ENDIAN
584 select SYS_SUPPORTS_LITTLE_ENDIAN
587 bool "Sibyte BCM91120x-Carmel"
588 depends on EXPERIMENTAL
591 select SIBYTE_BCM1120
593 select SYS_HAS_CPU_SB1
594 select SYS_SUPPORTS_BIG_ENDIAN
595 select SYS_SUPPORTS_LITTLE_ENDIAN
598 bool "Sibyte BCM91125C-CRhone"
599 depends on EXPERIMENTAL
602 select SIBYTE_BCM1125
604 select SYS_HAS_CPU_SB1
605 select SYS_SUPPORTS_BIG_ENDIAN
606 select SYS_SUPPORTS_HIGHMEM
607 select SYS_SUPPORTS_LITTLE_ENDIAN
610 bool "Sibyte BCM91125E-Rhone"
611 depends on EXPERIMENTAL
614 select SIBYTE_BCM1125H
616 select SYS_HAS_CPU_SB1
617 select SYS_SUPPORTS_BIG_ENDIAN
618 select SYS_SUPPORTS_LITTLE_ENDIAN
621 bool "Sibyte BCM91250A-SWARM"
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
632 select ZONE_DMA32 if 64BIT
634 config SIBYTE_LITTLESUR
635 bool "Sibyte BCM91250C2-LittleSur"
636 depends on EXPERIMENTAL
639 select HAVE_PATA_PLATFORM
640 select NR_CPUS_DEFAULT_2
643 select SYS_HAS_CPU_SB1
644 select SYS_SUPPORTS_BIG_ENDIAN
645 select SYS_SUPPORTS_HIGHMEM
646 select SYS_SUPPORTS_LITTLE_ENDIAN
648 config SIBYTE_SENTOSA
649 bool "Sibyte BCM91250E-Sentosa"
650 depends on EXPERIMENTAL
653 select NR_CPUS_DEFAULT_2
656 select SYS_HAS_CPU_SB1
657 select SYS_SUPPORTS_BIG_ENDIAN
658 select SYS_SUPPORTS_LITTLE_ENDIAN
661 bool "Sibyte BCM91480B-BigSur"
664 select NR_CPUS_DEFAULT_4
665 select SIBYTE_BCM1x80
667 select SYS_HAS_CPU_SB1
668 select SYS_SUPPORTS_BIG_ENDIAN
669 select SYS_SUPPORTS_HIGHMEM
670 select SYS_SUPPORTS_LITTLE_ENDIAN
671 select ZONE_DMA32 if 64BIT
674 bool "SNI RM200/300/400"
675 select ARC if CPU_LITTLE_ENDIAN
676 select ARC32 if CPU_LITTLE_ENDIAN
677 select SNIPROM if CPU_BIG_ENDIAN
678 select ARCH_MAY_HAVE_PC_FDC
682 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
683 select DMA_NONCOHERENT
684 select GENERIC_ISA_DMA
685 select HAVE_PCSPKR_PLATFORM
692 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
693 select SYS_HAS_CPU_R4X00
694 select SYS_HAS_CPU_R5000
695 select SYS_HAS_CPU_R10000
696 select R5000_CPU_SCACHE
697 select SYS_HAS_EARLY_PRINTK
698 select SYS_SUPPORTS_32BIT_KERNEL
699 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
700 select SYS_SUPPORTS_BIG_ENDIAN
701 select SYS_SUPPORTS_HIGHMEM
702 select SYS_SUPPORTS_LITTLE_ENDIAN
704 The SNI RM200/300/400 are MIPS-based machines manufactured by
705 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
706 Technology and now in turn merged with Fujitsu. Say Y here to
707 support this machine type.
710 bool "Toshiba TX39 series based machines"
713 bool "Toshiba TX49 series based machines"
715 config MIKROTIK_RB532
716 bool "Mikrotik RB532 boards"
719 select DMA_NONCOHERENT
722 select SYS_HAS_CPU_MIPS32_R1
723 select SYS_SUPPORTS_32BIT_KERNEL
724 select SYS_SUPPORTS_LITTLE_ENDIAN
727 select ARCH_REQUIRE_GPIOLIB
729 Support the Mikrotik(tm) RouterBoard 532 series,
730 based on the IDT RC32434 SoC.
733 bool "Wind River PPMC board"
738 select DMA_NONCOHERENT
740 select PCI_GT64XXX_PCI0
742 select SYS_HAS_CPU_MIPS32_R1
743 select SYS_HAS_CPU_MIPS32_R2
744 select SYS_HAS_CPU_MIPS64_R1
745 select SYS_HAS_CPU_NEVADA
746 select SYS_HAS_CPU_RM7000
747 select SYS_SUPPORTS_32BIT_KERNEL
748 select SYS_SUPPORTS_64BIT_KERNEL
749 select SYS_SUPPORTS_BIG_ENDIAN
750 select SYS_SUPPORTS_LITTLE_ENDIAN
752 This enables support for the Wind River MIPS32 4KC PPMC evaluation
753 board, which is based on GT64120 bridge chip.
755 config CAVIUM_OCTEON_SIMULATOR
756 bool "Cavium Networks Octeon Simulator"
758 select 64BIT_PHYS_ADDR
760 select SYS_SUPPORTS_64BIT_KERNEL
761 select SYS_SUPPORTS_BIG_ENDIAN
762 select SYS_SUPPORTS_HOTPLUG_CPU
763 select SYS_HAS_CPU_CAVIUM_OCTEON
766 The Octeon simulator is software performance model of the Cavium
767 Octeon Processor. It supports simulating Octeon processors on x86
770 config CAVIUM_OCTEON_REFERENCE_BOARD
771 bool "Cavium Networks Octeon reference board"
773 select 64BIT_PHYS_ADDR
775 select SYS_SUPPORTS_64BIT_KERNEL
776 select SYS_SUPPORTS_BIG_ENDIAN
777 select SYS_SUPPORTS_HOTPLUG_CPU
778 select SYS_HAS_EARLY_PRINTK
779 select SYS_HAS_CPU_CAVIUM_OCTEON
782 select ARCH_SUPPORTS_MSI
784 select USB_ARCH_HAS_OHCI
785 select USB_ARCH_HAS_EHCI
788 This option supports all of the Octeon reference boards from Cavium
789 Networks. It builds a kernel that dynamically determines the Octeon
790 CPU type and supports all known board reference implementations.
791 Some of the supported boards are:
798 Say Y here for most Octeon reference boards.
801 bool "Netlogic XLR/XLS based systems"
802 depends on EXPERIMENTAL
805 select SYS_HAS_CPU_XLR
806 select SYS_SUPPORTS_SMP
809 select SYS_SUPPORTS_32BIT_KERNEL
810 select SYS_SUPPORTS_64BIT_KERNEL
811 select 64BIT_PHYS_ADDR
812 select SYS_SUPPORTS_BIG_ENDIAN
813 select SYS_SUPPORTS_HIGHMEM
815 select NR_CPUS_DEFAULT_32
819 select ARCH_SUPPORTS_MSI
820 select ZONE_DMA32 if 64BIT
822 select SYS_HAS_EARLY_PRINTK
823 select USB_ARCH_HAS_OHCI if USB_SUPPORT
824 select USB_ARCH_HAS_EHCI if USB_SUPPORT
826 Support for systems based on Netlogic XLR and XLS processors.
827 Say Y here if you have a XLR or XLS based board.
830 bool "Netlogic XLP based systems"
831 depends on EXPERIMENTAL
834 select SYS_HAS_CPU_XLP
835 select SYS_SUPPORTS_SMP
837 select SYS_SUPPORTS_32BIT_KERNEL
838 select SYS_SUPPORTS_64BIT_KERNEL
839 select 64BIT_PHYS_ADDR
840 select SYS_SUPPORTS_BIG_ENDIAN
841 select SYS_SUPPORTS_LITTLE_ENDIAN
842 select SYS_SUPPORTS_HIGHMEM
844 select NR_CPUS_DEFAULT_32
848 select ZONE_DMA32 if 64BIT
850 select SYS_HAS_EARLY_PRINTK
853 This board is based on Netlogic XLP Processor.
854 Say Y here if you have a XLP based board.
858 source "arch/mips/alchemy/Kconfig"
859 source "arch/mips/ath79/Kconfig"
860 source "arch/mips/bcm47xx/Kconfig"
861 source "arch/mips/bcm63xx/Kconfig"
862 source "arch/mips/jazz/Kconfig"
863 source "arch/mips/jz4740/Kconfig"
864 source "arch/mips/lantiq/Kconfig"
865 source "arch/mips/lasat/Kconfig"
866 source "arch/mips/pmc-sierra/Kconfig"
867 source "arch/mips/powertv/Kconfig"
868 source "arch/mips/sgi-ip27/Kconfig"
869 source "arch/mips/sibyte/Kconfig"
870 source "arch/mips/txx9/Kconfig"
871 source "arch/mips/vr41xx/Kconfig"
872 source "arch/mips/cavium-octeon/Kconfig"
873 source "arch/mips/loongson/Kconfig"
874 source "arch/mips/loongson1/Kconfig"
875 source "arch/mips/netlogic/Kconfig"
879 config RWSEM_GENERIC_SPINLOCK
883 config RWSEM_XCHGADD_ALGORITHM
886 config ARCH_HAS_ILOG2_U32
890 config ARCH_HAS_ILOG2_U64
894 config GENERIC_HWEIGHT
898 config GENERIC_CALIBRATE_DELAY
902 config SCHED_OMIT_FRAME_POINTER
907 # Select some configuration options automatically based on user selections.
912 config ARCH_MAY_HAVE_PC_FDC
961 select ARCH_REQUIRE_GPIOLIB
967 config ARCH_DMA_ADDR_T_64BIT
968 def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT
973 config DMA_NONCOHERENT
975 select NEED_DMA_MAP_STATE
977 config NEED_DMA_MAP_STATE
980 config SYS_HAS_EARLY_PRINTK
984 bool "Support for hot-pluggable CPUs"
985 depends on SMP && HOTPLUG && SYS_SUPPORTS_HOTPLUG_CPU
987 Say Y here to allow turning CPUs off and on. CPUs can be
988 controlled through /sys/devices/system/cpu.
989 (Note: power management support will enable this option
990 automatically on SMP systems. )
991 Say N if you want to disable CPU hotplug.
993 config SYS_SUPPORTS_HOTPLUG_CPU
1008 config MIPS_DISABLE_OBSOLETE_IDE
1020 config GENERIC_ISA_DMA
1022 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1025 config GENERIC_ISA_DMA_SUPPORT_BROKEN
1027 select GENERIC_ISA_DMA
1035 config HOLES_IN_ZONE
1039 # Endianness selection. Sufficiently obscure so many users don't know what to
1040 # answer,so we try hard to limit the available choices. Also the use of a
1041 # choice statement should be more obvious to the user.
1044 prompt "Endianness selection"
1046 Some MIPS machines can be configured for either little or big endian
1047 byte order. These modes require different kernels and a different
1048 Linux distribution. In general there is one preferred byteorder for a
1049 particular system but some systems are just as commonly used in the
1050 one or the other endianness.
1052 config CPU_BIG_ENDIAN
1054 depends on SYS_SUPPORTS_BIG_ENDIAN
1056 config CPU_LITTLE_ENDIAN
1057 bool "Little endian"
1058 depends on SYS_SUPPORTS_LITTLE_ENDIAN
1066 config SYS_SUPPORTS_APM_EMULATION
1069 config SYS_SUPPORTS_BIG_ENDIAN
1072 config SYS_SUPPORTS_LITTLE_ENDIAN
1075 config SYS_SUPPORTS_HUGETLBFS
1077 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1104 config MIPS_BOARDS_GEN
1107 config PCI_GT64XXX_PCI0
1110 config NO_EXCEPT_FILL
1115 select SERIAL_RM9000
1121 select DMA_NONCOHERENT
1123 select SWAP_IO_SPACE
1124 select SYS_HAS_CPU_R5500
1125 select SYS_SUPPORTS_32BIT_KERNEL
1126 select SYS_SUPPORTS_64BIT_KERNEL
1127 select SYS_SUPPORTS_BIG_ENDIAN
1134 select DMA_NONCOHERENT
1135 select SYS_HAS_CPU_MIPS32_R2
1136 select SYS_SUPPORTS_32BIT_KERNEL
1137 select SYS_SUPPORTS_LITTLE_ENDIAN
1138 select SYS_SUPPORTS_BIG_ENDIAN
1140 select CPU_MIPSR2_IRQ_VI
1152 select DMA_NONCOHERENT
1154 select SYS_HAS_CPU_MIPS32_R1
1155 select SYS_HAS_EARLY_PRINTK
1156 select SYS_SUPPORTS_32BIT_KERNEL
1159 config SWAP_IO_SPACE
1162 config SERIAL_RM9000
1165 config SGI_HAS_INDYDOG
1177 config SGI_HAS_ZILOG
1180 config SGI_HAS_I8042
1183 config DEFAULT_SGI_PARTITION
1195 config MIPS_L1_CACHE_SHIFT
1197 default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL
1198 default "6" if MIPS_CPU_SCACHE
1199 default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON
1202 config HAVE_STD_PC_SERIAL_PORT
1206 bool "ARC console support"
1207 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1211 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1216 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1225 menu "CPU selection"
1231 config CPU_LOONGSON2E
1233 depends on SYS_HAS_CPU_LOONGSON2E
1234 select CPU_LOONGSON2
1236 The Loongson 2E processor implements the MIPS III instruction set
1237 with many extensions.
1239 It has an internal FPGA northbridge, which is compatible to
1242 config CPU_LOONGSON2F
1244 depends on SYS_HAS_CPU_LOONGSON2F
1245 select CPU_LOONGSON2
1247 select ARCH_REQUIRE_GPIOLIB
1249 The Loongson 2F processor implements the MIPS III instruction set
1250 with many extensions.
1252 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1253 have a similar programming interface with FPGA northbridge used in
1256 config CPU_LOONGSON1B
1258 depends on SYS_HAS_CPU_LOONGSON1B
1259 select CPU_LOONGSON1
1261 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1262 release 2 instruction set.
1264 config CPU_MIPS32_R1
1265 bool "MIPS32 Release 1"
1266 depends on SYS_HAS_CPU_MIPS32_R1
1267 select CPU_HAS_PREFETCH
1268 select CPU_SUPPORTS_32BIT_KERNEL
1269 select CPU_SUPPORTS_HIGHMEM
1271 Choose this option to build a kernel for release 1 or later of the
1272 MIPS32 architecture. Most modern embedded systems with a 32-bit
1273 MIPS processor are based on a MIPS32 processor. If you know the
1274 specific type of processor in your system, choose those that one
1275 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1276 Release 2 of the MIPS32 architecture is available since several
1277 years so chances are you even have a MIPS32 Release 2 processor
1278 in which case you should choose CPU_MIPS32_R2 instead for better
1281 config CPU_MIPS32_R2
1282 bool "MIPS32 Release 2"
1283 depends on SYS_HAS_CPU_MIPS32_R2
1284 select CPU_HAS_PREFETCH
1285 select CPU_SUPPORTS_32BIT_KERNEL
1286 select CPU_SUPPORTS_HIGHMEM
1288 Choose this option to build a kernel for release 2 or later of the
1289 MIPS32 architecture. Most modern embedded systems with a 32-bit
1290 MIPS processor are based on a MIPS32 processor. If you know the
1291 specific type of processor in your system, choose those that one
1292 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1294 config CPU_MIPS64_R1
1295 bool "MIPS64 Release 1"
1296 depends on SYS_HAS_CPU_MIPS64_R1
1297 select CPU_HAS_PREFETCH
1298 select CPU_SUPPORTS_32BIT_KERNEL
1299 select CPU_SUPPORTS_64BIT_KERNEL
1300 select CPU_SUPPORTS_HIGHMEM
1301 select CPU_SUPPORTS_HUGEPAGES
1303 Choose this option to build a kernel for release 1 or later of the
1304 MIPS64 architecture. Many modern embedded systems with a 64-bit
1305 MIPS processor are based on a MIPS64 processor. If you know the
1306 specific type of processor in your system, choose those that one
1307 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1308 Release 2 of the MIPS64 architecture is available since several
1309 years so chances are you even have a MIPS64 Release 2 processor
1310 in which case you should choose CPU_MIPS64_R2 instead for better
1313 config CPU_MIPS64_R2
1314 bool "MIPS64 Release 2"
1315 depends on SYS_HAS_CPU_MIPS64_R2
1316 select CPU_HAS_PREFETCH
1317 select CPU_SUPPORTS_32BIT_KERNEL
1318 select CPU_SUPPORTS_64BIT_KERNEL
1319 select CPU_SUPPORTS_HIGHMEM
1320 select CPU_SUPPORTS_HUGEPAGES
1322 Choose this option to build a kernel for release 2 or later of the
1323 MIPS64 architecture. Many modern embedded systems with a 64-bit
1324 MIPS processor are based on a MIPS64 processor. If you know the
1325 specific type of processor in your system, choose those that one
1326 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1330 depends on SYS_HAS_CPU_R3000
1332 select CPU_SUPPORTS_32BIT_KERNEL
1333 select CPU_SUPPORTS_HIGHMEM
1335 Please make sure to pick the right CPU type. Linux/MIPS is not
1336 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1337 *not* work on R4000 machines and vice versa. However, since most
1338 of the supported machines have an R4000 (or similar) CPU, R4x00
1339 might be a safe bet. If the resulting kernel does not work,
1340 try to recompile with R3000.
1344 depends on SYS_HAS_CPU_TX39XX
1345 select CPU_SUPPORTS_32BIT_KERNEL
1349 depends on SYS_HAS_CPU_VR41XX
1350 select CPU_SUPPORTS_32BIT_KERNEL
1351 select CPU_SUPPORTS_64BIT_KERNEL
1353 The options selects support for the NEC VR4100 series of processors.
1354 Only choose this option if you have one of these processors as a
1355 kernel built with this option will not run on any other type of
1356 processor or vice versa.
1360 depends on SYS_HAS_CPU_R4300
1361 select CPU_SUPPORTS_32BIT_KERNEL
1362 select CPU_SUPPORTS_64BIT_KERNEL
1364 MIPS Technologies R4300-series processors.
1368 depends on SYS_HAS_CPU_R4X00
1369 select CPU_SUPPORTS_32BIT_KERNEL
1370 select CPU_SUPPORTS_64BIT_KERNEL
1372 MIPS Technologies R4000-series processors other than 4300, including
1373 the R4000, R4400, R4600, and 4700.
1377 depends on SYS_HAS_CPU_TX49XX
1378 select CPU_HAS_PREFETCH
1379 select CPU_SUPPORTS_32BIT_KERNEL
1380 select CPU_SUPPORTS_64BIT_KERNEL
1384 depends on SYS_HAS_CPU_R5000
1385 select CPU_SUPPORTS_32BIT_KERNEL
1386 select CPU_SUPPORTS_64BIT_KERNEL
1388 MIPS Technologies R5000-series processors other than the Nevada.
1392 depends on SYS_HAS_CPU_R5432
1393 select CPU_SUPPORTS_32BIT_KERNEL
1394 select CPU_SUPPORTS_64BIT_KERNEL
1398 depends on SYS_HAS_CPU_R5500
1399 select CPU_SUPPORTS_32BIT_KERNEL
1400 select CPU_SUPPORTS_64BIT_KERNEL
1401 select CPU_SUPPORTS_HUGEPAGES
1403 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1408 depends on EXPERIMENTAL
1409 depends on SYS_HAS_CPU_R6000
1410 select CPU_SUPPORTS_32BIT_KERNEL
1412 MIPS Technologies R6000 and R6000A series processors. Note these
1413 processors are extremely rare and the support for them is incomplete.
1417 depends on SYS_HAS_CPU_NEVADA
1418 select CPU_SUPPORTS_32BIT_KERNEL
1419 select CPU_SUPPORTS_64BIT_KERNEL
1421 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1425 depends on EXPERIMENTAL
1426 depends on SYS_HAS_CPU_R8000
1427 select CPU_HAS_PREFETCH
1428 select CPU_SUPPORTS_64BIT_KERNEL
1430 MIPS Technologies R8000 processors. Note these processors are
1431 uncommon and the support for them is incomplete.
1435 depends on SYS_HAS_CPU_R10000
1436 select CPU_HAS_PREFETCH
1437 select CPU_SUPPORTS_32BIT_KERNEL
1438 select CPU_SUPPORTS_64BIT_KERNEL
1439 select CPU_SUPPORTS_HIGHMEM
1441 MIPS Technologies R10000-series processors.
1445 depends on SYS_HAS_CPU_RM7000
1446 select CPU_HAS_PREFETCH
1447 select CPU_SUPPORTS_32BIT_KERNEL
1448 select CPU_SUPPORTS_64BIT_KERNEL
1449 select CPU_SUPPORTS_HIGHMEM
1453 depends on SYS_HAS_CPU_RM9000
1454 select CPU_HAS_PREFETCH
1455 select CPU_SUPPORTS_32BIT_KERNEL
1456 select CPU_SUPPORTS_64BIT_KERNEL
1457 select CPU_SUPPORTS_HIGHMEM
1458 select WEAK_ORDERING
1462 depends on SYS_HAS_CPU_SB1
1463 select CPU_SUPPORTS_32BIT_KERNEL
1464 select CPU_SUPPORTS_64BIT_KERNEL
1465 select CPU_SUPPORTS_HIGHMEM
1466 select WEAK_ORDERING
1468 config CPU_CAVIUM_OCTEON
1469 bool "Cavium Octeon processor"
1470 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1471 select ARCH_SPARSEMEM_ENABLE
1472 select CPU_HAS_PREFETCH
1473 select CPU_SUPPORTS_64BIT_KERNEL
1474 select SYS_SUPPORTS_SMP
1475 select NR_CPUS_DEFAULT_16
1476 select WEAK_ORDERING
1477 select CPU_SUPPORTS_HIGHMEM
1478 select CPU_SUPPORTS_HUGEPAGES
1482 The Cavium Octeon processor is a highly integrated chip containing
1483 many ethernet hardware widgets for networking tasks. The processor
1484 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1485 Full details can be found at http://www.caviumnetworks.com.
1487 config CPU_BMIPS3300
1489 depends on SYS_HAS_CPU_BMIPS3300
1492 Broadcom BMIPS3300 processors.
1494 config CPU_BMIPS4350
1496 depends on SYS_HAS_CPU_BMIPS4350
1498 select SYS_SUPPORTS_SMP
1499 select SYS_SUPPORTS_HOTPLUG_CPU
1501 Broadcom BMIPS4350 ("VIPER") processors.
1503 config CPU_BMIPS4380
1505 depends on SYS_HAS_CPU_BMIPS4380
1507 select SYS_SUPPORTS_SMP
1508 select SYS_SUPPORTS_HOTPLUG_CPU
1510 Broadcom BMIPS4380 processors.
1512 config CPU_BMIPS5000
1514 depends on SYS_HAS_CPU_BMIPS5000
1516 select CPU_SUPPORTS_HIGHMEM
1517 select MIPS_CPU_SCACHE
1518 select SYS_SUPPORTS_SMP
1519 select SYS_SUPPORTS_HOTPLUG_CPU
1521 Broadcom BMIPS5000 processors.
1524 bool "Netlogic XLR SoC"
1525 depends on SYS_HAS_CPU_XLR
1526 select CPU_SUPPORTS_32BIT_KERNEL
1527 select CPU_SUPPORTS_64BIT_KERNEL
1528 select CPU_SUPPORTS_HIGHMEM
1529 select WEAK_ORDERING
1530 select WEAK_REORDERING_BEYOND_LLSC
1531 select CPU_SUPPORTS_HUGEPAGES
1533 Netlogic Microsystems XLR/XLS processors.
1536 bool "Netlogic XLP SoC"
1537 depends on SYS_HAS_CPU_XLP
1538 select CPU_SUPPORTS_32BIT_KERNEL
1539 select CPU_SUPPORTS_64BIT_KERNEL
1540 select CPU_SUPPORTS_HIGHMEM
1542 select WEAK_ORDERING
1543 select WEAK_REORDERING_BEYOND_LLSC
1544 select CPU_HAS_PREFETCH
1547 Netlogic Microsystems XLP processors.
1551 config CPU_NOP_WORKAROUNDS
1554 config CPU_JUMP_WORKAROUNDS
1557 config CPU_LOONGSON2F_WORKAROUNDS
1558 bool "Loongson 2F Workarounds"
1560 select CPU_NOP_WORKAROUNDS
1561 select CPU_JUMP_WORKAROUNDS
1563 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1564 require workarounds. Without workarounds the system may hang
1565 unexpectedly. For more information please refer to the gas
1566 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1568 Loongson 2F03 and later have fixed these issues and no workarounds
1569 are needed. The workarounds have no significant side effect on them
1570 but may decrease the performance of the system so this option should
1571 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1574 If unsure, please say Y.
1575 endif # CPU_LOONGSON2F
1577 config SYS_SUPPORTS_ZBOOT
1579 select HAVE_KERNEL_GZIP
1580 select HAVE_KERNEL_BZIP2
1581 select HAVE_KERNEL_LZMA
1582 select HAVE_KERNEL_LZO
1584 config SYS_SUPPORTS_ZBOOT_UART16550
1586 select SYS_SUPPORTS_ZBOOT
1588 config CPU_LOONGSON2
1590 select CPU_SUPPORTS_32BIT_KERNEL
1591 select CPU_SUPPORTS_64BIT_KERNEL
1592 select CPU_SUPPORTS_HIGHMEM
1594 config CPU_LOONGSON1
1598 select CPU_HAS_PREFETCH
1599 select CPU_SUPPORTS_32BIT_KERNEL
1600 select CPU_SUPPORTS_HIGHMEM
1605 select CPU_SUPPORTS_32BIT_KERNEL
1606 select DMA_NONCOHERENT
1608 select SWAP_IO_SPACE
1609 select WEAK_ORDERING
1611 config SYS_HAS_CPU_LOONGSON2E
1614 config SYS_HAS_CPU_LOONGSON2F
1616 select CPU_SUPPORTS_CPUFREQ
1617 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1618 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1620 config SYS_HAS_CPU_LOONGSON1B
1623 config SYS_HAS_CPU_MIPS32_R1
1626 config SYS_HAS_CPU_MIPS32_R2
1629 config SYS_HAS_CPU_MIPS64_R1
1632 config SYS_HAS_CPU_MIPS64_R2
1635 config SYS_HAS_CPU_R3000
1638 config SYS_HAS_CPU_TX39XX
1641 config SYS_HAS_CPU_VR41XX
1644 config SYS_HAS_CPU_R4300
1647 config SYS_HAS_CPU_R4X00
1650 config SYS_HAS_CPU_TX49XX
1653 config SYS_HAS_CPU_R5000
1656 config SYS_HAS_CPU_R5432
1659 config SYS_HAS_CPU_R5500
1662 config SYS_HAS_CPU_R6000
1665 config SYS_HAS_CPU_NEVADA
1668 config SYS_HAS_CPU_R8000
1671 config SYS_HAS_CPU_R10000
1674 config SYS_HAS_CPU_RM7000
1677 config SYS_HAS_CPU_RM9000
1680 config SYS_HAS_CPU_SB1
1683 config SYS_HAS_CPU_CAVIUM_OCTEON
1686 config SYS_HAS_CPU_BMIPS3300
1689 config SYS_HAS_CPU_BMIPS4350
1692 config SYS_HAS_CPU_BMIPS4380
1695 config SYS_HAS_CPU_BMIPS5000
1698 config SYS_HAS_CPU_XLR
1701 config SYS_HAS_CPU_XLP
1705 # CPU may reorder R->R, R->W, W->R, W->W
1706 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1708 config WEAK_ORDERING
1712 # CPU may reorder reads and writes beyond LL/SC
1713 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1715 config WEAK_REORDERING_BEYOND_LLSC
1720 # These two indicate any level of the MIPS32 and MIPS64 architecture
1724 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1728 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1731 # These two indicate the revision of the architecture, either Release 1 or Release 2
1735 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1739 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1741 config SYS_SUPPORTS_32BIT_KERNEL
1743 config SYS_SUPPORTS_64BIT_KERNEL
1745 config CPU_SUPPORTS_32BIT_KERNEL
1747 config CPU_SUPPORTS_64BIT_KERNEL
1749 config CPU_SUPPORTS_CPUFREQ
1751 config CPU_SUPPORTS_ADDRWINCFG
1753 config CPU_SUPPORTS_HUGEPAGES
1755 config CPU_SUPPORTS_UNCACHED_ACCELERATED
1757 config MIPS_PGD_C0_CONTEXT
1759 default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
1762 # Set to y for ptrace access to watch registers.
1764 config HARDWARE_WATCHPOINTS
1766 default y if CPU_MIPSR1 || CPU_MIPSR2
1771 prompt "Kernel code model"
1773 You should only select this option if you have a workload that
1774 actually benefits from 64-bit processing or if your machine has
1775 large memory. You will only be presented a single option in this
1776 menu if your system does not support both 32-bit and 64-bit kernels.
1779 bool "32-bit kernel"
1780 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1783 Select this option if you want to build a 32-bit kernel.
1785 bool "64-bit kernel"
1786 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1787 select HAVE_SYSCALL_WRAPPERS
1789 Select this option if you want to build a 64-bit kernel.
1794 prompt "Kernel page size"
1795 default PAGE_SIZE_4KB
1797 config PAGE_SIZE_4KB
1799 depends on !CPU_LOONGSON2
1801 This option select the standard 4kB Linux page size. On some
1802 R3000-family processors this is the only available page size. Using
1803 4kB page size will minimize memory consumption and is therefore
1804 recommended for low memory systems.
1806 config PAGE_SIZE_8KB
1808 depends on (EXPERIMENTAL && CPU_R8000) || CPU_CAVIUM_OCTEON
1810 Using 8kB page size will result in higher performance kernel at
1811 the price of higher memory consumption. This option is available
1812 only on R8000 and cnMIPS processors. Note that you will need a
1813 suitable Linux distribution to support this.
1815 config PAGE_SIZE_16KB
1817 depends on !CPU_R3000 && !CPU_TX39XX
1819 Using 16kB page size will result in higher performance kernel at
1820 the price of higher memory consumption. This option is available on
1821 all non-R3000 family processors. Note that you will need a suitable
1822 Linux distribution to support this.
1824 config PAGE_SIZE_32KB
1826 depends on CPU_CAVIUM_OCTEON
1828 Using 32kB page size will result in higher performance kernel at
1829 the price of higher memory consumption. This option is available
1830 only on cnMIPS cores. Note that you will need a suitable Linux
1831 distribution to support this.
1833 config PAGE_SIZE_64KB
1835 depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
1837 Using 64kB page size will result in higher performance kernel at
1838 the price of higher memory consumption. This option is available on
1839 all non-R3000 family processor. Not that at the time of this
1840 writing this option is still high experimental.
1844 config FORCE_MAX_ZONEORDER
1845 int "Maximum zone order"
1846 range 14 64 if HUGETLB_PAGE && PAGE_SIZE_64KB
1847 default "14" if HUGETLB_PAGE && PAGE_SIZE_64KB
1848 range 13 64 if HUGETLB_PAGE && PAGE_SIZE_32KB
1849 default "13" if HUGETLB_PAGE && PAGE_SIZE_32KB
1850 range 12 64 if HUGETLB_PAGE && PAGE_SIZE_16KB
1851 default "12" if HUGETLB_PAGE && PAGE_SIZE_16KB
1855 The kernel memory allocator divides physically contiguous memory
1856 blocks into "zones", where each zone is a power of two number of
1857 pages. This option selects the largest power of two that the kernel
1858 keeps in the memory allocator. If you need to allocate very large
1859 blocks of physically contiguous memory, then you may need to
1860 increase this value.
1862 This config option is actually maximum order plus one. For example,
1863 a value of 11 means that the largest free memory block is 2^10 pages.
1865 The page size is not necessarily 4KB. Keep this in mind
1866 when choosing a value for this option.
1871 config IP22_CPU_SCACHE
1876 # Support for a MIPS32 / MIPS64 style S-caches
1878 config MIPS_CPU_SCACHE
1882 config R5000_CPU_SCACHE
1886 config RM7000_CPU_SCACHE
1890 config SIBYTE_DMA_PAGEOPS
1891 bool "Use DMA to clear/copy pages"
1894 Instead of using the CPU to zero and copy pages, use a Data Mover
1895 channel. These DMA channels are otherwise unused by the standard
1896 SiByte Linux port. Seems to give a small performance benefit.
1898 config CPU_HAS_PREFETCH
1901 config CPU_GENERIC_DUMP_TLB
1903 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
1907 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1909 config CPU_R4K_CACHE_TLB
1911 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1914 prompt "MIPS MT options"
1916 config MIPS_MT_DISABLED
1917 bool "Disable multithreading support."
1919 Use this option if your workload can't take advantage of
1920 MIPS hardware multithreading support. On systems that don't have
1921 the option of an MT-enabled processor this option will be the only
1922 option in this menu.
1925 bool "Use 1 TC on each available VPE for SMP"
1926 depends on SYS_SUPPORTS_MULTITHREADING
1927 select CPU_MIPSR2_IRQ_VI
1928 select CPU_MIPSR2_IRQ_EI
1930 select NR_CPUS_DEFAULT_2
1932 select SYS_SUPPORTS_SCHED_SMT if SMP
1933 select SYS_SUPPORTS_SMP
1935 select MIPS_PERF_SHARED_TC_COUNTERS
1937 This is a kernel model which is known a VSMP but lately has been
1938 marketesed into SMVP.
1939 Virtual SMP uses the processor's VPEs to implement virtual
1940 processors. In currently available configuration of the 34K processor
1941 this allows for a dual processor. Both processors will share the same
1942 primary caches; each will obtain the half of the TLB for it's own
1943 exclusive use. For a layman this model can be described as similar to
1944 what Intel calls Hyperthreading.
1946 For further information see http://www.linux-mips.org/wiki/34K#VSMP
1949 bool "SMTC: Use all TCs on all VPEs for SMP"
1950 depends on CPU_MIPS32_R2
1951 #depends on CPU_MIPS64_R2 # once there is hardware ...
1952 depends on SYS_SUPPORTS_MULTITHREADING
1953 select CPU_MIPSR2_IRQ_VI
1954 select CPU_MIPSR2_IRQ_EI
1956 select NR_CPUS_DEFAULT_8
1958 select SYS_SUPPORTS_SMP
1961 This is a kernel model which is known a SMTC or lately has been
1962 marketesed into SMVP.
1963 is presenting the available TC's of the core as processors to Linux.
1964 On currently available 34K processors this means a Linux system will
1965 see up to 5 processors. The implementation of the SMTC kernel differs
1966 significantly from VSMP and cannot efficiently coexist in the same
1967 kernel binary so the choice between VSMP and SMTC is a compile time
1970 For further information see http://www.linux-mips.org/wiki/34K#SMTC
1978 bool "SMT (multithreading) scheduler support"
1979 depends on SYS_SUPPORTS_SCHED_SMT
1982 SMT scheduler support improves the CPU scheduler's decision making
1983 when dealing with MIPS MT enabled cores at a cost of slightly
1984 increased overhead in some places. If unsure say N here.
1986 config SYS_SUPPORTS_SCHED_SMT
1989 config SYS_SUPPORTS_MULTITHREADING
1992 config MIPS_MT_FPAFF
1993 bool "Dynamic FPU affinity for FP-intensive threads"
1995 depends on MIPS_MT_SMP || MIPS_MT_SMTC
1997 config MIPS_VPE_LOADER
1998 bool "VPE loader support."
1999 depends on SYS_SUPPORTS_MULTITHREADING
2000 select CPU_MIPSR2_IRQ_VI
2001 select CPU_MIPSR2_IRQ_EI
2004 Includes a loader for loading an elf relocatable object
2005 onto another VPE and running it.
2007 config MIPS_MT_SMTC_IM_BACKSTOP
2008 bool "Use per-TC register bits as backstop for inhibited IM bits"
2009 depends on MIPS_MT_SMTC
2012 To support multiple TC microthreads acting as "CPUs" within
2013 a VPE, VPE-wide interrupt mask bits must be specially manipulated
2014 during interrupt handling. To support legacy drivers and interrupt
2015 controller management code, SMTC has a "backstop" to track and
2016 if necessary restore the interrupt mask. This has some performance
2017 impact on interrupt service overhead.
2019 config MIPS_MT_SMTC_IRQAFF
2020 bool "Support IRQ affinity API"
2021 depends on MIPS_MT_SMTC
2024 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
2025 for SMTC Linux kernel. Requires platform support, of which
2026 an example can be found in the MIPS kernel i8259 and Malta
2027 platform code. Adds some overhead to interrupt dispatch, and
2028 should be used only if you know what you are doing.
2030 config MIPS_VPE_LOADER_TOM
2031 bool "Load VPE program into memory hidden from linux"
2032 depends on MIPS_VPE_LOADER
2035 The loader can use memory that is present but has been hidden from
2036 Linux using the kernel command line option "mem=xxMB". It's up to
2037 you to ensure the amount you put in the option and the space your
2038 program requires is less or equal to the amount physically present.
2040 # this should possibly be in drivers/char, but it is rather cpu related. Hmmm
2041 config MIPS_VPE_APSP_API
2042 bool "Enable support for AP/SP API (RTLX)"
2043 depends on MIPS_VPE_LOADER
2047 bool "MIPS CMP framework support"
2048 depends on SYS_SUPPORTS_MIPS_CMP
2050 select SYS_SUPPORTS_SMP
2051 select SYS_SUPPORTS_SCHED_SMT if SMP
2052 select WEAK_ORDERING
2055 This is a placeholder option for the GCMP work. It will need to
2056 be handled differently...
2058 config SB1_PASS_1_WORKAROUNDS
2060 depends on CPU_SB1_PASS_1
2063 config SB1_PASS_2_WORKAROUNDS
2065 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2068 config SB1_PASS_2_1_WORKAROUNDS
2070 depends on CPU_SB1 && CPU_SB1_PASS_2
2073 config 64BIT_PHYS_ADDR
2076 config ARCH_PHYS_ADDR_T_64BIT
2077 def_bool 64BIT_PHYS_ADDR
2079 config CPU_HAS_SMARTMIPS
2080 depends on SYS_SUPPORTS_SMARTMIPS
2081 bool "Support for the SmartMIPS ASE"
2083 SmartMIPS is a extension of the MIPS32 architecture aimed at
2084 increased security at both hardware and software level for
2085 smartcards. Enabling this option will allow proper use of the
2086 SmartMIPS instructions by Linux applications. However a kernel with
2087 this option will not work on a MIPS core without SmartMIPS core. If
2088 you don't know you probably don't have SmartMIPS and should say N
2098 # Vectored interrupt mode is an R2 feature
2100 config CPU_MIPSR2_IRQ_VI
2104 # Extended interrupt mode is an R2 feature
2106 config CPU_MIPSR2_IRQ_EI
2111 depends on !CPU_R3000
2117 config CPU_DADDI_WORKAROUNDS
2120 config CPU_R4000_WORKAROUNDS
2122 select CPU_R4400_WORKAROUNDS
2124 config CPU_R4400_WORKAROUNDS
2128 # - Highmem only makes sense for the 32-bit kernel.
2129 # - The current highmem code will only work properly on physically indexed
2130 # caches such as R3000, SB1, R7000 or those that look like they're virtually
2131 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2132 # moment we protect the user and offer the highmem option only on machines
2133 # where it's known to be safe. This will not offer highmem on a few systems
2134 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2135 # indexed CPUs but we're playing safe.
2136 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2137 # know they might have memory configurations that could make use of highmem
2141 bool "High Memory Support"
2142 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
2144 config CPU_SUPPORTS_HIGHMEM
2147 config SYS_SUPPORTS_HIGHMEM
2150 config SYS_SUPPORTS_SMARTMIPS
2153 config ARCH_FLATMEM_ENABLE
2155 depends on !NUMA && !CPU_LOONGSON2
2157 config ARCH_DISCONTIGMEM_ENABLE
2159 default y if SGI_IP27
2161 Say Y to support efficient handling of discontiguous physical memory,
2162 for architectures which are either NUMA (Non-Uniform Memory Access)
2163 or have huge holes in the physical address space for other reasons.
2164 See <file:Documentation/vm/numa> for more.
2166 config ARCH_SPARSEMEM_ENABLE
2168 select SPARSEMEM_STATIC
2172 depends on SYS_SUPPORTS_NUMA
2174 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2175 Access). This option improves performance on systems with more
2176 than two nodes; on two node systems it is generally better to
2177 leave it disabled; on single node systems disable this option
2180 config SYS_SUPPORTS_NUMA
2186 depends on NEED_MULTIPLE_NODES
2188 config HW_PERF_EVENTS
2189 bool "Enable hardware performance counter support for perf events"
2190 depends on PERF_EVENTS && !MIPS_MT_SMTC && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP)
2193 Enable hardware performance counter support for perf events. If
2194 disabled, perf events will use software events only.
2199 bool "Multi-Processing support"
2200 depends on SYS_SUPPORTS_SMP
2202 select USE_GENERIC_SMP_HELPERS
2204 This enables support for systems with more than one CPU. If you have
2205 a system with only one CPU, like most personal computers, say N. If
2206 you have a system with more than one CPU, say Y.
2208 If you say N here, the kernel will run on single and multiprocessor
2209 machines, but will use only one CPU of a multiprocessor machine. If
2210 you say Y here, the kernel will run on many, but not all,
2211 singleprocessor machines. On a singleprocessor machine, the kernel
2212 will run faster if you say N here.
2214 People using multiprocessor machines who say Y here should also say
2215 Y to "Enhanced Real Time Clock Support", below.
2217 See also the SMP-HOWTO available at
2218 <http://www.tldp.org/docs.html#howto>.
2220 If you don't know what to do here, say N.
2225 config SYS_SUPPORTS_MIPS_CMP
2228 config SYS_SUPPORTS_SMP
2231 config NR_CPUS_DEFAULT_1
2234 config NR_CPUS_DEFAULT_2
2237 config NR_CPUS_DEFAULT_4
2240 config NR_CPUS_DEFAULT_8
2243 config NR_CPUS_DEFAULT_16
2246 config NR_CPUS_DEFAULT_32
2249 config NR_CPUS_DEFAULT_64
2253 int "Maximum number of CPUs (2-64)"
2254 range 1 64 if NR_CPUS_DEFAULT_1
2256 default "1" if NR_CPUS_DEFAULT_1
2257 default "2" if NR_CPUS_DEFAULT_2
2258 default "4" if NR_CPUS_DEFAULT_4
2259 default "8" if NR_CPUS_DEFAULT_8
2260 default "16" if NR_CPUS_DEFAULT_16
2261 default "32" if NR_CPUS_DEFAULT_32
2262 default "64" if NR_CPUS_DEFAULT_64
2264 This allows you to specify the maximum number of CPUs which this
2265 kernel will support. The maximum supported value is 32 for 32-bit
2266 kernel and 64 for 64-bit kernels; the minimum value which makes
2267 sense is 1 for Qemu (useful only for kernel debugging purposes)
2268 and 2 for all others.
2270 This is purely to save memory - each supported CPU adds
2271 approximately eight kilobytes to the kernel image. For best
2272 performance should round up your number of processors to the next
2275 config MIPS_PERF_SHARED_TC_COUNTERS
2279 # Timer Interrupt Frequency Configuration
2283 prompt "Timer frequency"
2286 Allows the configuration of the timer frequency.
2289 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2292 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2295 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2298 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2301 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2304 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2307 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2311 config SYS_SUPPORTS_48HZ
2314 config SYS_SUPPORTS_100HZ
2317 config SYS_SUPPORTS_128HZ
2320 config SYS_SUPPORTS_250HZ
2323 config SYS_SUPPORTS_256HZ
2326 config SYS_SUPPORTS_1000HZ
2329 config SYS_SUPPORTS_1024HZ
2332 config SYS_SUPPORTS_ARBIT_HZ
2334 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2335 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2336 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2337 !SYS_SUPPORTS_1024HZ
2342 default 100 if HZ_100
2343 default 128 if HZ_128
2344 default 250 if HZ_250
2345 default 256 if HZ_256
2346 default 1000 if HZ_1000
2347 default 1024 if HZ_1024
2349 source "kernel/Kconfig.preempt"
2352 bool "Kexec system call (EXPERIMENTAL)"
2353 depends on EXPERIMENTAL
2355 kexec is a system call that implements the ability to shutdown your
2356 current kernel, and to start another kernel. It is like a reboot
2357 but it is independent of the system firmware. And like a reboot
2358 you can start any kernel with it, not just Linux.
2360 The name comes from the similarity to the exec system call.
2362 It is an ongoing process to be certain the hardware in a machine
2363 is properly shutdown, so do not be surprised if this code does not
2364 initially work for you. It may help to enable device hotplugging
2365 support. As of this writing the exact hardware interface is
2366 strongly in flux, so no good recommendation can be made.
2369 bool "Enable seccomp to safely compute untrusted bytecode"
2373 This kernel feature is useful for number crunching applications
2374 that may need to compute untrusted bytecode during their
2375 execution. By using pipes or other transports made available to
2376 the process as file descriptors supporting the read/write
2377 syscalls, it's possible to isolate those applications in
2378 their own address space using seccomp. Once seccomp is
2379 enabled via /proc/<pid>/seccomp, it cannot be disabled
2380 and the task is only allowed to execute a few safe syscalls
2381 defined by each seccomp mode.
2383 If unsure, say Y. Only embedded should say N here.
2388 select OF_EARLY_FLATTREE
2393 config LOCKDEP_SUPPORT
2397 config STACKTRACE_SUPPORT
2401 source "init/Kconfig"
2403 source "kernel/Kconfig.freezer"
2405 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2413 bool "Support for PCI controller"
2414 depends on HW_HAS_PCI
2416 select GENERIC_PCI_IOMAP
2417 select NO_GENERIC_PCI_IOPORT_MAP
2419 Find out whether you have a PCI motherboard. PCI is the name of a
2420 bus system, i.e. the way the CPU talks to the other stuff inside
2421 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2427 source "drivers/pci/Kconfig"
2429 source "drivers/pci/pcie/Kconfig"
2432 # ISA support is now enabled via select. Too many systems still have the one
2433 # or other ISA chip on the board that users don't know about so don't expect
2434 # users to choose the right thing ...
2441 depends on HW_HAS_EISA
2443 select GENERIC_ISA_DMA
2445 The Extended Industry Standard Architecture (EISA) bus was
2446 developed as an open alternative to the IBM MicroChannel bus.
2448 The EISA bus provided some of the features of the IBM MicroChannel
2449 bus while maintaining backward compatibility with cards made for
2450 the older ISA bus. The EISA bus saw limited use between 1988 and
2451 1995 when it was made obsolete by the PCI bus.
2453 Say Y here if you are building a kernel for an EISA-based machine.
2457 source "drivers/eisa/Kconfig"
2460 bool "TURBOchannel support"
2461 depends on MACH_DECSTATION
2463 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2464 processors. TURBOchannel programming specifications are available
2466 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2468 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2469 Linux driver support status is documented at:
2470 <http://www.linux-mips.org/wiki/DECstation>
2480 select MIPS_EXTERNAL_TIMER
2485 source "drivers/pcmcia/Kconfig"
2487 source "drivers/pci/hotplug/Kconfig"
2490 bool "RapidIO support"
2494 If you say Y here, the kernel will include drivers and
2495 infrastructure code to support RapidIO interconnect devices.
2497 source "drivers/rapidio/Kconfig"
2501 menu "Executable file formats"
2503 source "fs/Kconfig.binfmt"
2508 config MIPS32_COMPAT
2509 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2512 Select this option if you want Linux/MIPS 32-bit binary
2513 compatibility. Since all software available for Linux/MIPS is
2514 currently 32-bit you should say Y here.
2518 depends on MIPS32_COMPAT
2519 select ARCH_WANT_OLD_COMPAT_IPC
2522 config SYSVIPC_COMPAT
2524 depends on COMPAT && SYSVIPC
2528 bool "Kernel support for o32 binaries"
2529 depends on MIPS32_COMPAT
2531 Select this option if you want to run o32 binaries. These are pure
2532 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2533 existing binaries are in this format.
2538 bool "Kernel support for n32 binaries"
2539 depends on MIPS32_COMPAT
2541 Select this option if you want to run n32 binaries. These are
2542 64-bit binaries using 32-bit quantities for addressing and certain
2543 data that would normally be 64-bit. They are used in special
2550 default y if MIPS32_O32 || MIPS32_N32
2554 menu "Power management options"
2556 config ARCH_HIBERNATION_POSSIBLE
2558 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2560 config ARCH_SUSPEND_POSSIBLE
2562 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2564 source "kernel/power/Kconfig"
2568 source "arch/mips/kernel/cpufreq/Kconfig"
2570 source "net/Kconfig"
2572 source "drivers/Kconfig"
2576 source "arch/mips/Kconfig.debug"
2578 source "security/Kconfig"
2580 source "crypto/Kconfig"
2582 source "lib/Kconfig"