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
43 select GENERIC_KERNEL_THREAD
44 select GENERIC_KERNEL_EXECVE
46 menu "Machine selection"
56 bool "Alchemy processor based machines"
57 select 64BIT_PHYS_ADDR
61 select SYS_HAS_CPU_MIPS32_R1
62 select SYS_SUPPORTS_32BIT_KERNEL
63 select SYS_SUPPORTS_APM_EMULATION
65 select ARCH_WANT_OPTIONAL_GPIOLIB
66 select SYS_SUPPORTS_ZBOOT
67 select USB_ARCH_HAS_OHCI
68 select USB_ARCH_HAS_EHCI
71 bool "Texas Instruments AR7"
73 select DMA_NONCOHERENT
79 select SYS_HAS_CPU_MIPS32_R1
80 select SYS_HAS_EARLY_PRINTK
81 select SYS_SUPPORTS_32BIT_KERNEL
82 select SYS_SUPPORTS_LITTLE_ENDIAN
83 select SYS_SUPPORTS_ZBOOT_UART16550
84 select ARCH_REQUIRE_GPIOLIB
88 Support for the Texas Instruments AR7 System-on-a-Chip
89 family: TNETD7100, 7200 and 7300.
92 bool "Atheros AR71XX/AR724X/AR913X based boards"
93 select ARCH_REQUIRE_GPIOLIB
97 select DMA_NONCOHERENT
101 select SYS_HAS_CPU_MIPS32_R2
102 select SYS_HAS_EARLY_PRINTK
103 select SYS_SUPPORTS_32BIT_KERNEL
104 select SYS_SUPPORTS_BIG_ENDIAN
106 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
109 bool "Broadcom BCM47XX based boards"
112 select DMA_NONCOHERENT
115 select SYS_SUPPORTS_32BIT_KERNEL
116 select SYS_SUPPORTS_LITTLE_ENDIAN
118 select SYS_HAS_EARLY_PRINTK
121 Support for BCM47XX based boards
124 bool "Broadcom BCM63XX based boards"
127 select DMA_NONCOHERENT
129 select SYS_HAS_CPU_MIPS32_R1
130 select SYS_SUPPORTS_32BIT_KERNEL
131 select SYS_SUPPORTS_BIG_ENDIAN
132 select SYS_HAS_EARLY_PRINTK
134 select ARCH_REQUIRE_GPIOLIB
137 Support for BCM63XX based boards
144 select DMA_NONCOHERENT
150 select PCI_GT64XXX_PCI0
152 select SYS_HAS_CPU_NEVADA
153 select SYS_HAS_EARLY_PRINTK
154 select SYS_SUPPORTS_32BIT_KERNEL
155 select SYS_SUPPORTS_64BIT_KERNEL
156 select SYS_SUPPORTS_LITTLE_ENDIAN
158 config MACH_DECSTATION
165 select CPU_DADDI_WORKAROUNDS if 64BIT
166 select CPU_R4000_WORKAROUNDS if 64BIT
167 select CPU_R4400_WORKAROUNDS if 64BIT
168 select DMA_NONCOHERENT
171 select SYS_HAS_CPU_R3000
172 select SYS_HAS_CPU_R4X00
173 select SYS_SUPPORTS_32BIT_KERNEL
174 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
175 select SYS_SUPPORTS_LITTLE_ENDIAN
176 select SYS_SUPPORTS_128HZ
177 select SYS_SUPPORTS_256HZ
178 select SYS_SUPPORTS_1024HZ
180 This enables support for DEC's MIPS based workstations. For details
181 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
182 DECstation porting pages on <http://decstation.unix-ag.org/>.
184 If you have one of the following DECstation Models you definitely
185 want to choose R4xx0 for the CPU Type:
192 otherwise choose R3000.
195 bool "Jazz family of machines"
198 select ARCH_MAY_HAVE_PC_FDC
201 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
202 select GENERIC_ISA_DMA
203 select HAVE_PCSPKR_PLATFORM
208 select SYS_HAS_CPU_R4X00
209 select SYS_SUPPORTS_32BIT_KERNEL
210 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
211 select SYS_SUPPORTS_100HZ
213 This a family of machines based on the MIPS R4030 chipset which was
214 used by several vendors to build RISC/os and Windows NT workstations.
215 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
216 Olivetti M700-10 workstations.
219 bool "Ingenic JZ4740 based machines"
220 select SYS_HAS_CPU_MIPS32_R1
221 select SYS_SUPPORTS_32BIT_KERNEL
222 select SYS_SUPPORTS_LITTLE_ENDIAN
223 select SYS_SUPPORTS_ZBOOT_UART16550
224 select DMA_NONCOHERENT
227 select ARCH_REQUIRE_GPIOLIB
228 select SYS_HAS_EARLY_PRINTK
231 select GENERIC_IRQ_CHIP
234 bool "Lantiq based platforms"
235 select DMA_NONCOHERENT
239 select SYS_HAS_CPU_MIPS32_R1
240 select SYS_HAS_CPU_MIPS32_R2
241 select SYS_SUPPORTS_BIG_ENDIAN
242 select SYS_SUPPORTS_32BIT_KERNEL
243 select SYS_SUPPORTS_MULTITHREADING
244 select SYS_HAS_EARLY_PRINTK
245 select ARCH_REQUIRE_GPIOLIB
248 select HAVE_MACH_CLKDEV
252 select PINCTRL_LANTIQ
255 bool "LASAT Networks platforms"
258 select DMA_NONCOHERENT
259 select SYS_HAS_EARLY_PRINTK
262 select PCI_GT64XXX_PCI0
264 select R5000_CPU_SCACHE
265 select SYS_HAS_CPU_R5000
266 select SYS_SUPPORTS_32BIT_KERNEL
267 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
268 select SYS_SUPPORTS_LITTLE_ENDIAN
271 bool "Loongson family of machines"
272 select SYS_SUPPORTS_ZBOOT
274 This enables the support of Loongson family of machines.
276 Loongson is a family of general-purpose MIPS-compatible CPUs.
277 developed at Institute of Computing Technology (ICT),
278 Chinese Academy of Sciences (CAS) in the People's Republic
279 of China. The chief architect is Professor Weiwu Hu.
281 config MACH_LOONGSON1
282 bool "Loongson 1 family of machines"
283 select SYS_SUPPORTS_ZBOOT
285 This enables support for the Loongson 1 based machines.
287 Loongson 1 is a family of 32-bit MIPS-compatible SoCs developed by
288 the ICT (Institute of Computing Technology) and the Chinese Academy
292 bool "MIPS Malta board"
293 select ARCH_MAY_HAVE_PC_FDC
298 select DMA_NONCOHERENT
299 select GENERIC_ISA_DMA
300 select HAVE_PCSPKR_PLATFORM
306 select MIPS_BOARDS_GEN
308 select MIPS_CPU_SCACHE
309 select PCI_GT64XXX_PCI0
312 select SYS_HAS_CPU_MIPS32_R1
313 select SYS_HAS_CPU_MIPS32_R2
314 select SYS_HAS_CPU_MIPS64_R1
315 select SYS_HAS_CPU_MIPS64_R2
316 select SYS_HAS_CPU_NEVADA
317 select SYS_HAS_CPU_RM7000
318 select SYS_HAS_EARLY_PRINTK
319 select SYS_SUPPORTS_32BIT_KERNEL
320 select SYS_SUPPORTS_64BIT_KERNEL
321 select SYS_SUPPORTS_BIG_ENDIAN
322 select SYS_SUPPORTS_LITTLE_ENDIAN
323 select SYS_SUPPORTS_MIPS_CMP
324 select SYS_SUPPORTS_MULTITHREADING
325 select SYS_SUPPORTS_SMARTMIPS
326 select SYS_SUPPORTS_ZBOOT
328 This enables support for the MIPS Technologies Malta evaluation
332 bool "MIPS SEAD3 board"
337 select CPU_MIPSR2_IRQ_VI
338 select CPU_MIPSR2_IRQ_EI
339 select DMA_NONCOHERENT
342 select MIPS_BOARDS_GEN
343 select MIPS_CPU_SCACHE
345 select SYS_HAS_CPU_MIPS32_R1
346 select SYS_HAS_CPU_MIPS32_R2
347 select SYS_HAS_CPU_MIPS64_R1
348 select SYS_HAS_EARLY_PRINTK
349 select SYS_SUPPORTS_32BIT_KERNEL
350 select SYS_SUPPORTS_64BIT_KERNEL
351 select SYS_SUPPORTS_BIG_ENDIAN
352 select SYS_SUPPORTS_LITTLE_ENDIAN
353 select SYS_SUPPORTS_SMARTMIPS
354 select USB_ARCH_HAS_EHCI
355 select USB_EHCI_BIG_ENDIAN_DESC
356 select USB_EHCI_BIG_ENDIAN_MMIO
358 This enables support for the MIPS Technologies SEAD3 evaluation
362 bool "NEC EMMA2RH Mark-eins board"
366 This enables support for the NEC Electronics Mark-eins boards.
369 bool "NEC VR4100 series based machines"
372 select SYS_HAS_CPU_VR41XX
373 select ARCH_REQUIRE_GPIOLIB
376 bool "NXP STB220 board"
379 Support for NXP Semiconductors STB220 Development Board.
386 Support for NXP Semiconductors STB225 Development Board.
389 bool "NXP PNX8550 based JBS board"
391 select SYS_SUPPORTS_LITTLE_ENDIAN
393 config PNX8550_STB810
394 bool "NXP PNX8550 based STB810 board"
396 select SYS_SUPPORTS_LITTLE_ENDIAN
399 bool "PMC-Sierra MSP chipsets"
400 depends on EXPERIMENTAL
403 select DMA_NONCOHERENT
405 select NO_EXCEPT_FILL
407 select SYS_HAS_CPU_MIPS32_R1
408 select SYS_HAS_CPU_MIPS32_R2
409 select SYS_SUPPORTS_32BIT_KERNEL
410 select SYS_SUPPORTS_BIG_ENDIAN
413 select SERIAL_8250_CONSOLE
415 This adds support for the PMC-Sierra family of Multi-Service
416 Processor System-On-A-Chips. These parts include a number
417 of integrated peripherals, interfaces and DSPs in addition to
418 a variety of MIPS cores.
421 bool "PMC-Sierra Yosemite eval board"
430 select SYS_HAS_CPU_RM9000
431 select SYS_HAS_EARLY_PRINTK
432 select SYS_SUPPORTS_32BIT_KERNEL
433 select SYS_SUPPORTS_64BIT_KERNEL
434 select SYS_SUPPORTS_BIG_ENDIAN
435 select SYS_SUPPORTS_HIGHMEM
436 select SYS_SUPPORTS_SMP
438 Yosemite is an evaluation board for the RM9000x2 processor
439 manufactured by PMC-Sierra.
445 select CPU_MIPSR2_IRQ_VI
446 select CPU_MIPSR2_IRQ_EI
448 select DMA_NONCOHERENT
450 select SYS_HAS_EARLY_PRINTK
451 select SYS_HAS_CPU_MIPS32_R2
452 select SYS_SUPPORTS_32BIT_KERNEL
453 select SYS_SUPPORTS_BIG_ENDIAN
454 select SYS_SUPPORTS_HIGHMEM
455 select USB_OHCI_LITTLE_ENDIAN
457 This enables support for the Cisco PowerTV Platform.
460 bool "SGI IP22 (Indy/Indigo2)"
466 select DEFAULT_SGI_PARTITION
467 select DMA_NONCOHERENT
471 select IP22_CPU_SCACHE
473 select GENERIC_ISA_DMA_SUPPORT_BROKEN
475 select SGI_HAS_INDYDOG
481 select SYS_HAS_CPU_R4X00
482 select SYS_HAS_CPU_R5000
484 # Disable EARLY_PRINTK for now since it leads to overwritten prom
485 # memory during early boot on some machines.
487 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
488 # for a more details discussion
490 # select SYS_HAS_EARLY_PRINTK
491 select SYS_SUPPORTS_32BIT_KERNEL
492 select SYS_SUPPORTS_64BIT_KERNEL
493 select SYS_SUPPORTS_BIG_ENDIAN
495 This are the SGI Indy, Challenge S and Indigo2, as well as certain
496 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
497 that runs on these, say Y here.
500 bool "SGI IP27 (Origin200/2000)"
504 select DEFAULT_SGI_PARTITION
506 select SYS_HAS_EARLY_PRINTK
508 select NR_CPUS_DEFAULT_64
509 select SYS_HAS_CPU_R10000
510 select SYS_SUPPORTS_64BIT_KERNEL
511 select SYS_SUPPORTS_BIG_ENDIAN
512 select SYS_SUPPORTS_NUMA
513 select SYS_SUPPORTS_SMP
515 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
516 workstations. To compile a Linux kernel that runs on these, say Y
520 bool "SGI IP28 (Indigo2 R10k) (EXPERIMENTAL)"
521 depends on EXPERIMENTAL
527 select DEFAULT_SGI_PARTITION
528 select DMA_NONCOHERENT
529 select GENERIC_ISA_DMA_SUPPORT_BROKEN
535 select SGI_HAS_INDYDOG
541 select SYS_HAS_CPU_R10000
543 # Disable EARLY_PRINTK for now since it leads to overwritten prom
544 # memory during early boot on some machines.
546 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
547 # for a more details discussion
549 # select SYS_HAS_EARLY_PRINTK
550 select SYS_SUPPORTS_64BIT_KERNEL
551 select SYS_SUPPORTS_BIG_ENDIAN
553 This is the SGI Indigo2 with R10000 processor. To compile a Linux
554 kernel that runs on these, say Y here.
563 select DMA_NONCOHERENT
566 select R5000_CPU_SCACHE
567 select RM7000_CPU_SCACHE
568 select SYS_HAS_CPU_R5000
569 select SYS_HAS_CPU_R10000 if BROKEN
570 select SYS_HAS_CPU_RM7000
571 select SYS_HAS_CPU_NEVADA
572 select SYS_SUPPORTS_64BIT_KERNEL
573 select SYS_SUPPORTS_BIG_ENDIAN
575 If you want this kernel to run on SGI O2 workstation, say Y here.
578 bool "Sibyte BCM91120C-CRhine"
579 depends on EXPERIMENTAL
582 select SIBYTE_BCM1120
584 select SYS_HAS_CPU_SB1
585 select SYS_SUPPORTS_BIG_ENDIAN
586 select SYS_SUPPORTS_LITTLE_ENDIAN
589 bool "Sibyte BCM91120x-Carmel"
590 depends on EXPERIMENTAL
593 select SIBYTE_BCM1120
595 select SYS_HAS_CPU_SB1
596 select SYS_SUPPORTS_BIG_ENDIAN
597 select SYS_SUPPORTS_LITTLE_ENDIAN
600 bool "Sibyte BCM91125C-CRhone"
601 depends on EXPERIMENTAL
604 select SIBYTE_BCM1125
606 select SYS_HAS_CPU_SB1
607 select SYS_SUPPORTS_BIG_ENDIAN
608 select SYS_SUPPORTS_HIGHMEM
609 select SYS_SUPPORTS_LITTLE_ENDIAN
612 bool "Sibyte BCM91125E-Rhone"
613 depends on EXPERIMENTAL
616 select SIBYTE_BCM1125H
618 select SYS_HAS_CPU_SB1
619 select SYS_SUPPORTS_BIG_ENDIAN
620 select SYS_SUPPORTS_LITTLE_ENDIAN
623 bool "Sibyte BCM91250A-SWARM"
626 select HAVE_PATA_PLATFORM
627 select NR_CPUS_DEFAULT_2
630 select SYS_HAS_CPU_SB1
631 select SYS_SUPPORTS_BIG_ENDIAN
632 select SYS_SUPPORTS_HIGHMEM
633 select SYS_SUPPORTS_LITTLE_ENDIAN
634 select ZONE_DMA32 if 64BIT
636 config SIBYTE_LITTLESUR
637 bool "Sibyte BCM91250C2-LittleSur"
638 depends on EXPERIMENTAL
641 select HAVE_PATA_PLATFORM
642 select NR_CPUS_DEFAULT_2
645 select SYS_HAS_CPU_SB1
646 select SYS_SUPPORTS_BIG_ENDIAN
647 select SYS_SUPPORTS_HIGHMEM
648 select SYS_SUPPORTS_LITTLE_ENDIAN
650 config SIBYTE_SENTOSA
651 bool "Sibyte BCM91250E-Sentosa"
652 depends on EXPERIMENTAL
655 select NR_CPUS_DEFAULT_2
658 select SYS_HAS_CPU_SB1
659 select SYS_SUPPORTS_BIG_ENDIAN
660 select SYS_SUPPORTS_LITTLE_ENDIAN
663 bool "Sibyte BCM91480B-BigSur"
666 select NR_CPUS_DEFAULT_4
667 select SIBYTE_BCM1x80
669 select SYS_HAS_CPU_SB1
670 select SYS_SUPPORTS_BIG_ENDIAN
671 select SYS_SUPPORTS_HIGHMEM
672 select SYS_SUPPORTS_LITTLE_ENDIAN
673 select ZONE_DMA32 if 64BIT
676 bool "SNI RM200/300/400"
677 select ARC if CPU_LITTLE_ENDIAN
678 select ARC32 if CPU_LITTLE_ENDIAN
679 select SNIPROM if CPU_BIG_ENDIAN
680 select ARCH_MAY_HAVE_PC_FDC
684 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
685 select DMA_NONCOHERENT
686 select GENERIC_ISA_DMA
687 select HAVE_PCSPKR_PLATFORM
694 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
695 select SYS_HAS_CPU_R4X00
696 select SYS_HAS_CPU_R5000
697 select SYS_HAS_CPU_R10000
698 select R5000_CPU_SCACHE
699 select SYS_HAS_EARLY_PRINTK
700 select SYS_SUPPORTS_32BIT_KERNEL
701 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
702 select SYS_SUPPORTS_BIG_ENDIAN
703 select SYS_SUPPORTS_HIGHMEM
704 select SYS_SUPPORTS_LITTLE_ENDIAN
706 The SNI RM200/300/400 are MIPS-based machines manufactured by
707 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
708 Technology and now in turn merged with Fujitsu. Say Y here to
709 support this machine type.
712 bool "Toshiba TX39 series based machines"
715 bool "Toshiba TX49 series based machines"
717 config MIKROTIK_RB532
718 bool "Mikrotik RB532 boards"
721 select DMA_NONCOHERENT
724 select SYS_HAS_CPU_MIPS32_R1
725 select SYS_SUPPORTS_32BIT_KERNEL
726 select SYS_SUPPORTS_LITTLE_ENDIAN
729 select ARCH_REQUIRE_GPIOLIB
731 Support the Mikrotik(tm) RouterBoard 532 series,
732 based on the IDT RC32434 SoC.
735 bool "Wind River PPMC board"
740 select DMA_NONCOHERENT
742 select PCI_GT64XXX_PCI0
744 select SYS_HAS_CPU_MIPS32_R1
745 select SYS_HAS_CPU_MIPS32_R2
746 select SYS_HAS_CPU_MIPS64_R1
747 select SYS_HAS_CPU_NEVADA
748 select SYS_HAS_CPU_RM7000
749 select SYS_SUPPORTS_32BIT_KERNEL
750 select SYS_SUPPORTS_64BIT_KERNEL
751 select SYS_SUPPORTS_BIG_ENDIAN
752 select SYS_SUPPORTS_LITTLE_ENDIAN
754 This enables support for the Wind River MIPS32 4KC PPMC evaluation
755 board, which is based on GT64120 bridge chip.
757 config CAVIUM_OCTEON_SIMULATOR
758 bool "Cavium Networks Octeon Simulator"
760 select 64BIT_PHYS_ADDR
762 select SYS_SUPPORTS_64BIT_KERNEL
763 select SYS_SUPPORTS_BIG_ENDIAN
764 select SYS_SUPPORTS_HOTPLUG_CPU
765 select SYS_HAS_CPU_CAVIUM_OCTEON
768 The Octeon simulator is software performance model of the Cavium
769 Octeon Processor. It supports simulating Octeon processors on x86
772 config CAVIUM_OCTEON_REFERENCE_BOARD
773 bool "Cavium Networks Octeon reference board"
775 select 64BIT_PHYS_ADDR
777 select SYS_SUPPORTS_64BIT_KERNEL
778 select SYS_SUPPORTS_BIG_ENDIAN
779 select SYS_SUPPORTS_HOTPLUG_CPU
780 select SYS_HAS_EARLY_PRINTK
781 select SYS_HAS_CPU_CAVIUM_OCTEON
784 select ARCH_SUPPORTS_MSI
786 select USB_ARCH_HAS_OHCI
787 select USB_ARCH_HAS_EHCI
790 This option supports all of the Octeon reference boards from Cavium
791 Networks. It builds a kernel that dynamically determines the Octeon
792 CPU type and supports all known board reference implementations.
793 Some of the supported boards are:
800 Say Y here for most Octeon reference boards.
803 bool "Netlogic XLR/XLS based systems"
804 depends on EXPERIMENTAL
807 select SYS_HAS_CPU_XLR
808 select SYS_SUPPORTS_SMP
811 select SYS_SUPPORTS_32BIT_KERNEL
812 select SYS_SUPPORTS_64BIT_KERNEL
813 select 64BIT_PHYS_ADDR
814 select SYS_SUPPORTS_BIG_ENDIAN
815 select SYS_SUPPORTS_HIGHMEM
817 select NR_CPUS_DEFAULT_32
821 select ARCH_SUPPORTS_MSI
822 select ZONE_DMA if 64BIT
824 select SYS_HAS_EARLY_PRINTK
825 select USB_ARCH_HAS_OHCI if USB_SUPPORT
826 select USB_ARCH_HAS_EHCI if USB_SUPPORT
828 Support for systems based on Netlogic XLR and XLS processors.
829 Say Y here if you have a XLR or XLS based board.
832 bool "Netlogic XLP based systems"
833 depends on EXPERIMENTAL
836 select SYS_HAS_CPU_XLP
837 select SYS_SUPPORTS_SMP
839 select SYS_SUPPORTS_32BIT_KERNEL
840 select SYS_SUPPORTS_64BIT_KERNEL
841 select 64BIT_PHYS_ADDR
842 select SYS_SUPPORTS_BIG_ENDIAN
843 select SYS_SUPPORTS_LITTLE_ENDIAN
844 select SYS_SUPPORTS_HIGHMEM
846 select NR_CPUS_DEFAULT_32
850 select ZONE_DMA if 64BIT
852 select SYS_HAS_EARLY_PRINTK
855 This board is based on Netlogic XLP Processor.
856 Say Y here if you have a XLP based board.
860 source "arch/mips/alchemy/Kconfig"
861 source "arch/mips/ath79/Kconfig"
862 source "arch/mips/bcm47xx/Kconfig"
863 source "arch/mips/bcm63xx/Kconfig"
864 source "arch/mips/jazz/Kconfig"
865 source "arch/mips/jz4740/Kconfig"
866 source "arch/mips/lantiq/Kconfig"
867 source "arch/mips/lasat/Kconfig"
868 source "arch/mips/pmc-sierra/Kconfig"
869 source "arch/mips/powertv/Kconfig"
870 source "arch/mips/sgi-ip27/Kconfig"
871 source "arch/mips/sibyte/Kconfig"
872 source "arch/mips/txx9/Kconfig"
873 source "arch/mips/vr41xx/Kconfig"
874 source "arch/mips/cavium-octeon/Kconfig"
875 source "arch/mips/loongson/Kconfig"
876 source "arch/mips/loongson1/Kconfig"
877 source "arch/mips/netlogic/Kconfig"
881 config RWSEM_GENERIC_SPINLOCK
885 config RWSEM_XCHGADD_ALGORITHM
888 config ARCH_HAS_ILOG2_U32
892 config ARCH_HAS_ILOG2_U64
896 config GENERIC_HWEIGHT
900 config GENERIC_CALIBRATE_DELAY
904 config SCHED_OMIT_FRAME_POINTER
909 # Select some configuration options automatically based on user selections.
914 config ARCH_MAY_HAVE_PC_FDC
963 select ARCH_REQUIRE_GPIOLIB
969 config ARCH_DMA_ADDR_T_64BIT
970 def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT
975 config DMA_NONCOHERENT
977 select NEED_DMA_MAP_STATE
979 config NEED_DMA_MAP_STATE
982 config SYS_HAS_EARLY_PRINTK
986 bool "Support for hot-pluggable CPUs"
987 depends on SMP && HOTPLUG && SYS_SUPPORTS_HOTPLUG_CPU
989 Say Y here to allow turning CPUs off and on. CPUs can be
990 controlled through /sys/devices/system/cpu.
991 (Note: power management support will enable this option
992 automatically on SMP systems. )
993 Say N if you want to disable CPU hotplug.
995 config SYS_SUPPORTS_HOTPLUG_CPU
1001 config MIPS_BONITO64
1010 config MIPS_DISABLE_OBSOLETE_IDE
1022 config GENERIC_ISA_DMA
1024 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1027 config GENERIC_ISA_DMA_SUPPORT_BROKEN
1029 select GENERIC_ISA_DMA
1037 config HOLES_IN_ZONE
1041 # Endianness selection. Sufficiently obscure so many users don't know what to
1042 # answer,so we try hard to limit the available choices. Also the use of a
1043 # choice statement should be more obvious to the user.
1046 prompt "Endianness selection"
1048 Some MIPS machines can be configured for either little or big endian
1049 byte order. These modes require different kernels and a different
1050 Linux distribution. In general there is one preferred byteorder for a
1051 particular system but some systems are just as commonly used in the
1052 one or the other endianness.
1054 config CPU_BIG_ENDIAN
1056 depends on SYS_SUPPORTS_BIG_ENDIAN
1058 config CPU_LITTLE_ENDIAN
1059 bool "Little endian"
1060 depends on SYS_SUPPORTS_LITTLE_ENDIAN
1068 config SYS_SUPPORTS_APM_EMULATION
1071 config SYS_SUPPORTS_BIG_ENDIAN
1074 config SYS_SUPPORTS_LITTLE_ENDIAN
1077 config SYS_SUPPORTS_HUGETLBFS
1079 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1106 config MIPS_BOARDS_GEN
1109 config PCI_GT64XXX_PCI0
1112 config NO_EXCEPT_FILL
1117 select SERIAL_RM9000
1123 select DMA_NONCOHERENT
1125 select SWAP_IO_SPACE
1126 select SYS_HAS_CPU_R5500
1127 select SYS_SUPPORTS_32BIT_KERNEL
1128 select SYS_SUPPORTS_64BIT_KERNEL
1129 select SYS_SUPPORTS_BIG_ENDIAN
1136 select DMA_NONCOHERENT
1137 select SYS_HAS_CPU_MIPS32_R2
1138 select SYS_SUPPORTS_32BIT_KERNEL
1139 select SYS_SUPPORTS_LITTLE_ENDIAN
1140 select SYS_SUPPORTS_BIG_ENDIAN
1142 select CPU_MIPSR2_IRQ_VI
1154 select DMA_NONCOHERENT
1156 select SYS_HAS_CPU_MIPS32_R1
1157 select SYS_HAS_EARLY_PRINTK
1158 select SYS_SUPPORTS_32BIT_KERNEL
1161 config SWAP_IO_SPACE
1164 config SERIAL_RM9000
1167 config SGI_HAS_INDYDOG
1179 config SGI_HAS_ZILOG
1182 config SGI_HAS_I8042
1185 config DEFAULT_SGI_PARTITION
1197 config MIPS_L1_CACHE_SHIFT
1199 default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL
1200 default "6" if MIPS_CPU_SCACHE
1201 default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON
1204 config HAVE_STD_PC_SERIAL_PORT
1208 bool "ARC console support"
1209 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1213 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1218 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1227 menu "CPU selection"
1233 config CPU_LOONGSON2E
1235 depends on SYS_HAS_CPU_LOONGSON2E
1236 select CPU_LOONGSON2
1238 The Loongson 2E processor implements the MIPS III instruction set
1239 with many extensions.
1241 It has an internal FPGA northbridge, which is compatible to
1244 config CPU_LOONGSON2F
1246 depends on SYS_HAS_CPU_LOONGSON2F
1247 select CPU_LOONGSON2
1249 select ARCH_REQUIRE_GPIOLIB
1251 The Loongson 2F processor implements the MIPS III instruction set
1252 with many extensions.
1254 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1255 have a similar programming interface with FPGA northbridge used in
1258 config CPU_LOONGSON1B
1260 depends on SYS_HAS_CPU_LOONGSON1B
1261 select CPU_LOONGSON1
1263 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1264 release 2 instruction set.
1266 config CPU_MIPS32_R1
1267 bool "MIPS32 Release 1"
1268 depends on SYS_HAS_CPU_MIPS32_R1
1269 select CPU_HAS_PREFETCH
1270 select CPU_SUPPORTS_32BIT_KERNEL
1271 select CPU_SUPPORTS_HIGHMEM
1273 Choose this option to build a kernel for release 1 or later of the
1274 MIPS32 architecture. Most modern embedded systems with a 32-bit
1275 MIPS processor are based on a MIPS32 processor. If you know the
1276 specific type of processor in your system, choose those that one
1277 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1278 Release 2 of the MIPS32 architecture is available since several
1279 years so chances are you even have a MIPS32 Release 2 processor
1280 in which case you should choose CPU_MIPS32_R2 instead for better
1283 config CPU_MIPS32_R2
1284 bool "MIPS32 Release 2"
1285 depends on SYS_HAS_CPU_MIPS32_R2
1286 select CPU_HAS_PREFETCH
1287 select CPU_SUPPORTS_32BIT_KERNEL
1288 select CPU_SUPPORTS_HIGHMEM
1290 Choose this option to build a kernel for release 2 or later of the
1291 MIPS32 architecture. Most modern embedded systems with a 32-bit
1292 MIPS processor are based on a MIPS32 processor. If you know the
1293 specific type of processor in your system, choose those that one
1294 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1296 config CPU_MIPS64_R1
1297 bool "MIPS64 Release 1"
1298 depends on SYS_HAS_CPU_MIPS64_R1
1299 select CPU_HAS_PREFETCH
1300 select CPU_SUPPORTS_32BIT_KERNEL
1301 select CPU_SUPPORTS_64BIT_KERNEL
1302 select CPU_SUPPORTS_HIGHMEM
1303 select CPU_SUPPORTS_HUGEPAGES
1305 Choose this option to build a kernel for release 1 or later of the
1306 MIPS64 architecture. Many modern embedded systems with a 64-bit
1307 MIPS processor are based on a MIPS64 processor. If you know the
1308 specific type of processor in your system, choose those that one
1309 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1310 Release 2 of the MIPS64 architecture is available since several
1311 years so chances are you even have a MIPS64 Release 2 processor
1312 in which case you should choose CPU_MIPS64_R2 instead for better
1315 config CPU_MIPS64_R2
1316 bool "MIPS64 Release 2"
1317 depends on SYS_HAS_CPU_MIPS64_R2
1318 select CPU_HAS_PREFETCH
1319 select CPU_SUPPORTS_32BIT_KERNEL
1320 select CPU_SUPPORTS_64BIT_KERNEL
1321 select CPU_SUPPORTS_HIGHMEM
1322 select CPU_SUPPORTS_HUGEPAGES
1324 Choose this option to build a kernel for release 2 or later of the
1325 MIPS64 architecture. Many modern embedded systems with a 64-bit
1326 MIPS processor are based on a MIPS64 processor. If you know the
1327 specific type of processor in your system, choose those that one
1328 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1332 depends on SYS_HAS_CPU_R3000
1334 select CPU_SUPPORTS_32BIT_KERNEL
1335 select CPU_SUPPORTS_HIGHMEM
1337 Please make sure to pick the right CPU type. Linux/MIPS is not
1338 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1339 *not* work on R4000 machines and vice versa. However, since most
1340 of the supported machines have an R4000 (or similar) CPU, R4x00
1341 might be a safe bet. If the resulting kernel does not work,
1342 try to recompile with R3000.
1346 depends on SYS_HAS_CPU_TX39XX
1347 select CPU_SUPPORTS_32BIT_KERNEL
1351 depends on SYS_HAS_CPU_VR41XX
1352 select CPU_SUPPORTS_32BIT_KERNEL
1353 select CPU_SUPPORTS_64BIT_KERNEL
1355 The options selects support for the NEC VR4100 series of processors.
1356 Only choose this option if you have one of these processors as a
1357 kernel built with this option will not run on any other type of
1358 processor or vice versa.
1362 depends on SYS_HAS_CPU_R4300
1363 select CPU_SUPPORTS_32BIT_KERNEL
1364 select CPU_SUPPORTS_64BIT_KERNEL
1366 MIPS Technologies R4300-series processors.
1370 depends on SYS_HAS_CPU_R4X00
1371 select CPU_SUPPORTS_32BIT_KERNEL
1372 select CPU_SUPPORTS_64BIT_KERNEL
1374 MIPS Technologies R4000-series processors other than 4300, including
1375 the R4000, R4400, R4600, and 4700.
1379 depends on SYS_HAS_CPU_TX49XX
1380 select CPU_HAS_PREFETCH
1381 select CPU_SUPPORTS_32BIT_KERNEL
1382 select CPU_SUPPORTS_64BIT_KERNEL
1386 depends on SYS_HAS_CPU_R5000
1387 select CPU_SUPPORTS_32BIT_KERNEL
1388 select CPU_SUPPORTS_64BIT_KERNEL
1390 MIPS Technologies R5000-series processors other than the Nevada.
1394 depends on SYS_HAS_CPU_R5432
1395 select CPU_SUPPORTS_32BIT_KERNEL
1396 select CPU_SUPPORTS_64BIT_KERNEL
1400 depends on SYS_HAS_CPU_R5500
1401 select CPU_SUPPORTS_32BIT_KERNEL
1402 select CPU_SUPPORTS_64BIT_KERNEL
1403 select CPU_SUPPORTS_HUGEPAGES
1405 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1410 depends on EXPERIMENTAL
1411 depends on SYS_HAS_CPU_R6000
1412 select CPU_SUPPORTS_32BIT_KERNEL
1414 MIPS Technologies R6000 and R6000A series processors. Note these
1415 processors are extremely rare and the support for them is incomplete.
1419 depends on SYS_HAS_CPU_NEVADA
1420 select CPU_SUPPORTS_32BIT_KERNEL
1421 select CPU_SUPPORTS_64BIT_KERNEL
1423 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1427 depends on EXPERIMENTAL
1428 depends on SYS_HAS_CPU_R8000
1429 select CPU_HAS_PREFETCH
1430 select CPU_SUPPORTS_64BIT_KERNEL
1432 MIPS Technologies R8000 processors. Note these processors are
1433 uncommon and the support for them is incomplete.
1437 depends on SYS_HAS_CPU_R10000
1438 select CPU_HAS_PREFETCH
1439 select CPU_SUPPORTS_32BIT_KERNEL
1440 select CPU_SUPPORTS_64BIT_KERNEL
1441 select CPU_SUPPORTS_HIGHMEM
1443 MIPS Technologies R10000-series processors.
1447 depends on SYS_HAS_CPU_RM7000
1448 select CPU_HAS_PREFETCH
1449 select CPU_SUPPORTS_32BIT_KERNEL
1450 select CPU_SUPPORTS_64BIT_KERNEL
1451 select CPU_SUPPORTS_HIGHMEM
1455 depends on SYS_HAS_CPU_RM9000
1456 select CPU_HAS_PREFETCH
1457 select CPU_SUPPORTS_32BIT_KERNEL
1458 select CPU_SUPPORTS_64BIT_KERNEL
1459 select CPU_SUPPORTS_HIGHMEM
1460 select WEAK_ORDERING
1464 depends on SYS_HAS_CPU_SB1
1465 select CPU_SUPPORTS_32BIT_KERNEL
1466 select CPU_SUPPORTS_64BIT_KERNEL
1467 select CPU_SUPPORTS_HIGHMEM
1468 select WEAK_ORDERING
1470 config CPU_CAVIUM_OCTEON
1471 bool "Cavium Octeon processor"
1472 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1473 select ARCH_SPARSEMEM_ENABLE
1474 select CPU_HAS_PREFETCH
1475 select CPU_SUPPORTS_64BIT_KERNEL
1476 select SYS_SUPPORTS_SMP
1477 select NR_CPUS_DEFAULT_16
1478 select WEAK_ORDERING
1479 select CPU_SUPPORTS_HIGHMEM
1480 select CPU_SUPPORTS_HUGEPAGES
1484 The Cavium Octeon processor is a highly integrated chip containing
1485 many ethernet hardware widgets for networking tasks. The processor
1486 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1487 Full details can be found at http://www.caviumnetworks.com.
1489 config CPU_BMIPS3300
1491 depends on SYS_HAS_CPU_BMIPS3300
1494 Broadcom BMIPS3300 processors.
1496 config CPU_BMIPS4350
1498 depends on SYS_HAS_CPU_BMIPS4350
1500 select SYS_SUPPORTS_SMP
1501 select SYS_SUPPORTS_HOTPLUG_CPU
1503 Broadcom BMIPS4350 ("VIPER") processors.
1505 config CPU_BMIPS4380
1507 depends on SYS_HAS_CPU_BMIPS4380
1509 select SYS_SUPPORTS_SMP
1510 select SYS_SUPPORTS_HOTPLUG_CPU
1512 Broadcom BMIPS4380 processors.
1514 config CPU_BMIPS5000
1516 depends on SYS_HAS_CPU_BMIPS5000
1518 select CPU_SUPPORTS_HIGHMEM
1519 select MIPS_CPU_SCACHE
1520 select SYS_SUPPORTS_SMP
1521 select SYS_SUPPORTS_HOTPLUG_CPU
1523 Broadcom BMIPS5000 processors.
1526 bool "Netlogic XLR SoC"
1527 depends on SYS_HAS_CPU_XLR
1528 select CPU_SUPPORTS_32BIT_KERNEL
1529 select CPU_SUPPORTS_64BIT_KERNEL
1530 select CPU_SUPPORTS_HIGHMEM
1531 select WEAK_ORDERING
1532 select WEAK_REORDERING_BEYOND_LLSC
1533 select CPU_SUPPORTS_HUGEPAGES
1535 Netlogic Microsystems XLR/XLS processors.
1538 bool "Netlogic XLP SoC"
1539 depends on SYS_HAS_CPU_XLP
1540 select CPU_SUPPORTS_32BIT_KERNEL
1541 select CPU_SUPPORTS_64BIT_KERNEL
1542 select CPU_SUPPORTS_HIGHMEM
1544 select WEAK_ORDERING
1545 select WEAK_REORDERING_BEYOND_LLSC
1546 select CPU_HAS_PREFETCH
1548 Netlogic Microsystems XLP processors.
1552 config CPU_NOP_WORKAROUNDS
1555 config CPU_JUMP_WORKAROUNDS
1558 config CPU_LOONGSON2F_WORKAROUNDS
1559 bool "Loongson 2F Workarounds"
1561 select CPU_NOP_WORKAROUNDS
1562 select CPU_JUMP_WORKAROUNDS
1564 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1565 require workarounds. Without workarounds the system may hang
1566 unexpectedly. For more information please refer to the gas
1567 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1569 Loongson 2F03 and later have fixed these issues and no workarounds
1570 are needed. The workarounds have no significant side effect on them
1571 but may decrease the performance of the system so this option should
1572 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1575 If unsure, please say Y.
1576 endif # CPU_LOONGSON2F
1578 config SYS_SUPPORTS_ZBOOT
1580 select HAVE_KERNEL_GZIP
1581 select HAVE_KERNEL_BZIP2
1582 select HAVE_KERNEL_LZMA
1583 select HAVE_KERNEL_LZO
1585 config SYS_SUPPORTS_ZBOOT_UART16550
1587 select SYS_SUPPORTS_ZBOOT
1589 config CPU_LOONGSON2
1591 select CPU_SUPPORTS_32BIT_KERNEL
1592 select CPU_SUPPORTS_64BIT_KERNEL
1593 select CPU_SUPPORTS_HIGHMEM
1595 config CPU_LOONGSON1
1599 select CPU_HAS_PREFETCH
1600 select CPU_SUPPORTS_32BIT_KERNEL
1601 select CPU_SUPPORTS_HIGHMEM
1606 select CPU_SUPPORTS_32BIT_KERNEL
1607 select DMA_NONCOHERENT
1609 select SWAP_IO_SPACE
1610 select WEAK_ORDERING
1612 config SYS_HAS_CPU_LOONGSON2E
1615 config SYS_HAS_CPU_LOONGSON2F
1617 select CPU_SUPPORTS_CPUFREQ
1618 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1619 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1621 config SYS_HAS_CPU_LOONGSON1B
1624 config SYS_HAS_CPU_MIPS32_R1
1627 config SYS_HAS_CPU_MIPS32_R2
1630 config SYS_HAS_CPU_MIPS64_R1
1633 config SYS_HAS_CPU_MIPS64_R2
1636 config SYS_HAS_CPU_R3000
1639 config SYS_HAS_CPU_TX39XX
1642 config SYS_HAS_CPU_VR41XX
1645 config SYS_HAS_CPU_R4300
1648 config SYS_HAS_CPU_R4X00
1651 config SYS_HAS_CPU_TX49XX
1654 config SYS_HAS_CPU_R5000
1657 config SYS_HAS_CPU_R5432
1660 config SYS_HAS_CPU_R5500
1663 config SYS_HAS_CPU_R6000
1666 config SYS_HAS_CPU_NEVADA
1669 config SYS_HAS_CPU_R8000
1672 config SYS_HAS_CPU_R10000
1675 config SYS_HAS_CPU_RM7000
1678 config SYS_HAS_CPU_RM9000
1681 config SYS_HAS_CPU_SB1
1684 config SYS_HAS_CPU_CAVIUM_OCTEON
1687 config SYS_HAS_CPU_BMIPS3300
1690 config SYS_HAS_CPU_BMIPS4350
1693 config SYS_HAS_CPU_BMIPS4380
1696 config SYS_HAS_CPU_BMIPS5000
1699 config SYS_HAS_CPU_XLR
1702 config SYS_HAS_CPU_XLP
1706 # CPU may reorder R->R, R->W, W->R, W->W
1707 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1709 config WEAK_ORDERING
1713 # CPU may reorder reads and writes beyond LL/SC
1714 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1716 config WEAK_REORDERING_BEYOND_LLSC
1721 # These two indicate any level of the MIPS32 and MIPS64 architecture
1725 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1729 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1732 # These two indicate the revision of the architecture, either Release 1 or Release 2
1736 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1740 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1742 config SYS_SUPPORTS_32BIT_KERNEL
1744 config SYS_SUPPORTS_64BIT_KERNEL
1746 config CPU_SUPPORTS_32BIT_KERNEL
1748 config CPU_SUPPORTS_64BIT_KERNEL
1750 config CPU_SUPPORTS_CPUFREQ
1752 config CPU_SUPPORTS_ADDRWINCFG
1754 config CPU_SUPPORTS_HUGEPAGES
1756 config CPU_SUPPORTS_UNCACHED_ACCELERATED
1758 config MIPS_PGD_C0_CONTEXT
1760 default y if 64BIT && CPU_MIPSR2
1763 # Set to y for ptrace access to watch registers.
1765 config HARDWARE_WATCHPOINTS
1767 default y if CPU_MIPSR1 || CPU_MIPSR2
1772 prompt "Kernel code model"
1774 You should only select this option if you have a workload that
1775 actually benefits from 64-bit processing or if your machine has
1776 large memory. You will only be presented a single option in this
1777 menu if your system does not support both 32-bit and 64-bit kernels.
1780 bool "32-bit kernel"
1781 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1784 Select this option if you want to build a 32-bit kernel.
1786 bool "64-bit kernel"
1787 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1788 select HAVE_SYSCALL_WRAPPERS
1790 Select this option if you want to build a 64-bit kernel.
1795 prompt "Kernel page size"
1796 default PAGE_SIZE_4KB
1798 config PAGE_SIZE_4KB
1800 depends on !CPU_LOONGSON2
1802 This option select the standard 4kB Linux page size. On some
1803 R3000-family processors this is the only available page size. Using
1804 4kB page size will minimize memory consumption and is therefore
1805 recommended for low memory systems.
1807 config PAGE_SIZE_8KB
1809 depends on (EXPERIMENTAL && CPU_R8000) || CPU_CAVIUM_OCTEON
1811 Using 8kB page size will result in higher performance kernel at
1812 the price of higher memory consumption. This option is available
1813 only on R8000 and cnMIPS processors. Note that you will need a
1814 suitable Linux distribution to support this.
1816 config PAGE_SIZE_16KB
1818 depends on !CPU_R3000 && !CPU_TX39XX
1820 Using 16kB page size will result in higher performance kernel at
1821 the price of higher memory consumption. This option is available on
1822 all non-R3000 family processors. Note that you will need a suitable
1823 Linux distribution to support this.
1825 config PAGE_SIZE_32KB
1827 depends on CPU_CAVIUM_OCTEON
1829 Using 32kB page size will result in higher performance kernel at
1830 the price of higher memory consumption. This option is available
1831 only on cnMIPS cores. Note that you will need a suitable Linux
1832 distribution to support this.
1834 config PAGE_SIZE_64KB
1836 depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
1838 Using 64kB page size will result in higher performance kernel at
1839 the price of higher memory consumption. This option is available on
1840 all non-R3000 family processor. Not that at the time of this
1841 writing this option is still high experimental.
1845 config FORCE_MAX_ZONEORDER
1846 int "Maximum zone order"
1847 range 14 64 if HUGETLB_PAGE && PAGE_SIZE_64KB
1848 default "14" if HUGETLB_PAGE && PAGE_SIZE_64KB
1849 range 13 64 if HUGETLB_PAGE && PAGE_SIZE_32KB
1850 default "13" if HUGETLB_PAGE && PAGE_SIZE_32KB
1851 range 12 64 if HUGETLB_PAGE && PAGE_SIZE_16KB
1852 default "12" if HUGETLB_PAGE && PAGE_SIZE_16KB
1856 The kernel memory allocator divides physically contiguous memory
1857 blocks into "zones", where each zone is a power of two number of
1858 pages. This option selects the largest power of two that the kernel
1859 keeps in the memory allocator. If you need to allocate very large
1860 blocks of physically contiguous memory, then you may need to
1861 increase this value.
1863 This config option is actually maximum order plus one. For example,
1864 a value of 11 means that the largest free memory block is 2^10 pages.
1866 The page size is not necessarily 4KB. Keep this in mind
1867 when choosing a value for this option.
1872 config IP22_CPU_SCACHE
1877 # Support for a MIPS32 / MIPS64 style S-caches
1879 config MIPS_CPU_SCACHE
1883 config R5000_CPU_SCACHE
1887 config RM7000_CPU_SCACHE
1891 config SIBYTE_DMA_PAGEOPS
1892 bool "Use DMA to clear/copy pages"
1895 Instead of using the CPU to zero and copy pages, use a Data Mover
1896 channel. These DMA channels are otherwise unused by the standard
1897 SiByte Linux port. Seems to give a small performance benefit.
1899 config CPU_HAS_PREFETCH
1902 config CPU_GENERIC_DUMP_TLB
1904 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
1908 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1910 config CPU_R4K_CACHE_TLB
1912 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1915 prompt "MIPS MT options"
1917 config MIPS_MT_DISABLED
1918 bool "Disable multithreading support."
1920 Use this option if your workload can't take advantage of
1921 MIPS hardware multithreading support. On systems that don't have
1922 the option of an MT-enabled processor this option will be the only
1923 option in this menu.
1926 bool "Use 1 TC on each available VPE for SMP"
1927 depends on SYS_SUPPORTS_MULTITHREADING
1928 select CPU_MIPSR2_IRQ_VI
1929 select CPU_MIPSR2_IRQ_EI
1931 select NR_CPUS_DEFAULT_2
1933 select SYS_SUPPORTS_SCHED_SMT if SMP
1934 select SYS_SUPPORTS_SMP
1936 select MIPS_PERF_SHARED_TC_COUNTERS
1938 This is a kernel model which is known a VSMP but lately has been
1939 marketesed into SMVP.
1940 Virtual SMP uses the processor's VPEs to implement virtual
1941 processors. In currently available configuration of the 34K processor
1942 this allows for a dual processor. Both processors will share the same
1943 primary caches; each will obtain the half of the TLB for it's own
1944 exclusive use. For a layman this model can be described as similar to
1945 what Intel calls Hyperthreading.
1947 For further information see http://www.linux-mips.org/wiki/34K#VSMP
1950 bool "SMTC: Use all TCs on all VPEs for SMP"
1951 depends on CPU_MIPS32_R2
1952 #depends on CPU_MIPS64_R2 # once there is hardware ...
1953 depends on SYS_SUPPORTS_MULTITHREADING
1954 select CPU_MIPSR2_IRQ_VI
1955 select CPU_MIPSR2_IRQ_EI
1957 select NR_CPUS_DEFAULT_8
1959 select SYS_SUPPORTS_SMP
1962 This is a kernel model which is known a SMTC or lately has been
1963 marketesed into SMVP.
1964 is presenting the available TC's of the core as processors to Linux.
1965 On currently available 34K processors this means a Linux system will
1966 see up to 5 processors. The implementation of the SMTC kernel differs
1967 significantly from VSMP and cannot efficiently coexist in the same
1968 kernel binary so the choice between VSMP and SMTC is a compile time
1971 For further information see http://www.linux-mips.org/wiki/34K#SMTC
1979 bool "SMT (multithreading) scheduler support"
1980 depends on SYS_SUPPORTS_SCHED_SMT
1983 SMT scheduler support improves the CPU scheduler's decision making
1984 when dealing with MIPS MT enabled cores at a cost of slightly
1985 increased overhead in some places. If unsure say N here.
1987 config SYS_SUPPORTS_SCHED_SMT
1990 config SYS_SUPPORTS_MULTITHREADING
1993 config MIPS_MT_FPAFF
1994 bool "Dynamic FPU affinity for FP-intensive threads"
1996 depends on MIPS_MT_SMP || MIPS_MT_SMTC
1998 config MIPS_VPE_LOADER
1999 bool "VPE loader support."
2000 depends on SYS_SUPPORTS_MULTITHREADING
2001 select CPU_MIPSR2_IRQ_VI
2002 select CPU_MIPSR2_IRQ_EI
2005 Includes a loader for loading an elf relocatable object
2006 onto another VPE and running it.
2008 config MIPS_MT_SMTC_IM_BACKSTOP
2009 bool "Use per-TC register bits as backstop for inhibited IM bits"
2010 depends on MIPS_MT_SMTC
2013 To support multiple TC microthreads acting as "CPUs" within
2014 a VPE, VPE-wide interrupt mask bits must be specially manipulated
2015 during interrupt handling. To support legacy drivers and interrupt
2016 controller management code, SMTC has a "backstop" to track and
2017 if necessary restore the interrupt mask. This has some performance
2018 impact on interrupt service overhead.
2020 config MIPS_MT_SMTC_IRQAFF
2021 bool "Support IRQ affinity API"
2022 depends on MIPS_MT_SMTC
2025 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
2026 for SMTC Linux kernel. Requires platform support, of which
2027 an example can be found in the MIPS kernel i8259 and Malta
2028 platform code. Adds some overhead to interrupt dispatch, and
2029 should be used only if you know what you are doing.
2031 config MIPS_VPE_LOADER_TOM
2032 bool "Load VPE program into memory hidden from linux"
2033 depends on MIPS_VPE_LOADER
2036 The loader can use memory that is present but has been hidden from
2037 Linux using the kernel command line option "mem=xxMB". It's up to
2038 you to ensure the amount you put in the option and the space your
2039 program requires is less or equal to the amount physically present.
2041 # this should possibly be in drivers/char, but it is rather cpu related. Hmmm
2042 config MIPS_VPE_APSP_API
2043 bool "Enable support for AP/SP API (RTLX)"
2044 depends on MIPS_VPE_LOADER
2048 bool "MIPS CMP framework support"
2049 depends on SYS_SUPPORTS_MIPS_CMP
2051 select SYS_SUPPORTS_SMP
2052 select SYS_SUPPORTS_SCHED_SMT if SMP
2053 select WEAK_ORDERING
2056 This is a placeholder option for the GCMP work. It will need to
2057 be handled differently...
2059 config SB1_PASS_1_WORKAROUNDS
2061 depends on CPU_SB1_PASS_1
2064 config SB1_PASS_2_WORKAROUNDS
2066 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2069 config SB1_PASS_2_1_WORKAROUNDS
2071 depends on CPU_SB1 && CPU_SB1_PASS_2
2074 config 64BIT_PHYS_ADDR
2077 config ARCH_PHYS_ADDR_T_64BIT
2078 def_bool 64BIT_PHYS_ADDR
2080 config CPU_HAS_SMARTMIPS
2081 depends on SYS_SUPPORTS_SMARTMIPS
2082 bool "Support for the SmartMIPS ASE"
2084 SmartMIPS is a extension of the MIPS32 architecture aimed at
2085 increased security at both hardware and software level for
2086 smartcards. Enabling this option will allow proper use of the
2087 SmartMIPS instructions by Linux applications. However a kernel with
2088 this option will not work on a MIPS core without SmartMIPS core. If
2089 you don't know you probably don't have SmartMIPS and should say N
2099 # Vectored interrupt mode is an R2 feature
2101 config CPU_MIPSR2_IRQ_VI
2105 # Extended interrupt mode is an R2 feature
2107 config CPU_MIPSR2_IRQ_EI
2112 depends on !CPU_R3000
2118 config CPU_DADDI_WORKAROUNDS
2121 config CPU_R4000_WORKAROUNDS
2123 select CPU_R4400_WORKAROUNDS
2125 config CPU_R4400_WORKAROUNDS
2129 # - Highmem only makes sense for the 32-bit kernel.
2130 # - The current highmem code will only work properly on physically indexed
2131 # caches such as R3000, SB1, R7000 or those that look like they're virtually
2132 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2133 # moment we protect the user and offer the highmem option only on machines
2134 # where it's known to be safe. This will not offer highmem on a few systems
2135 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2136 # indexed CPUs but we're playing safe.
2137 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2138 # know they might have memory configurations that could make use of highmem
2142 bool "High Memory Support"
2143 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
2145 config CPU_SUPPORTS_HIGHMEM
2148 config SYS_SUPPORTS_HIGHMEM
2151 config SYS_SUPPORTS_SMARTMIPS
2154 config ARCH_FLATMEM_ENABLE
2156 depends on !NUMA && !CPU_LOONGSON2
2158 config ARCH_DISCONTIGMEM_ENABLE
2160 default y if SGI_IP27
2162 Say Y to support efficient handling of discontiguous physical memory,
2163 for architectures which are either NUMA (Non-Uniform Memory Access)
2164 or have huge holes in the physical address space for other reasons.
2165 See <file:Documentation/vm/numa> for more.
2167 config ARCH_SPARSEMEM_ENABLE
2169 select SPARSEMEM_STATIC
2173 depends on SYS_SUPPORTS_NUMA
2175 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2176 Access). This option improves performance on systems with more
2177 than two nodes; on two node systems it is generally better to
2178 leave it disabled; on single node systems disable this option
2181 config SYS_SUPPORTS_NUMA
2187 depends on NEED_MULTIPLE_NODES
2189 config HW_PERF_EVENTS
2190 bool "Enable hardware performance counter support for perf events"
2191 depends on PERF_EVENTS && !MIPS_MT_SMTC && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON)
2194 Enable hardware performance counter support for perf events. If
2195 disabled, perf events will use software events only.
2200 bool "Multi-Processing support"
2201 depends on SYS_SUPPORTS_SMP
2203 select USE_GENERIC_SMP_HELPERS
2205 This enables support for systems with more than one CPU. If you have
2206 a system with only one CPU, like most personal computers, say N. If
2207 you have a system with more than one CPU, say Y.
2209 If you say N here, the kernel will run on single and multiprocessor
2210 machines, but will use only one CPU of a multiprocessor machine. If
2211 you say Y here, the kernel will run on many, but not all,
2212 singleprocessor machines. On a singleprocessor machine, the kernel
2213 will run faster if you say N here.
2215 People using multiprocessor machines who say Y here should also say
2216 Y to "Enhanced Real Time Clock Support", below.
2218 See also the SMP-HOWTO available at
2219 <http://www.tldp.org/docs.html#howto>.
2221 If you don't know what to do here, say N.
2226 config SYS_SUPPORTS_MIPS_CMP
2229 config SYS_SUPPORTS_SMP
2232 config NR_CPUS_DEFAULT_1
2235 config NR_CPUS_DEFAULT_2
2238 config NR_CPUS_DEFAULT_4
2241 config NR_CPUS_DEFAULT_8
2244 config NR_CPUS_DEFAULT_16
2247 config NR_CPUS_DEFAULT_32
2250 config NR_CPUS_DEFAULT_64
2254 int "Maximum number of CPUs (2-64)"
2255 range 1 64 if NR_CPUS_DEFAULT_1
2257 default "1" if NR_CPUS_DEFAULT_1
2258 default "2" if NR_CPUS_DEFAULT_2
2259 default "4" if NR_CPUS_DEFAULT_4
2260 default "8" if NR_CPUS_DEFAULT_8
2261 default "16" if NR_CPUS_DEFAULT_16
2262 default "32" if NR_CPUS_DEFAULT_32
2263 default "64" if NR_CPUS_DEFAULT_64
2265 This allows you to specify the maximum number of CPUs which this
2266 kernel will support. The maximum supported value is 32 for 32-bit
2267 kernel and 64 for 64-bit kernels; the minimum value which makes
2268 sense is 1 for Qemu (useful only for kernel debugging purposes)
2269 and 2 for all others.
2271 This is purely to save memory - each supported CPU adds
2272 approximately eight kilobytes to the kernel image. For best
2273 performance should round up your number of processors to the next
2276 config MIPS_PERF_SHARED_TC_COUNTERS
2280 # Timer Interrupt Frequency Configuration
2284 prompt "Timer frequency"
2287 Allows the configuration of the timer frequency.
2290 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2293 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2296 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2299 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2302 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2305 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2308 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2312 config SYS_SUPPORTS_48HZ
2315 config SYS_SUPPORTS_100HZ
2318 config SYS_SUPPORTS_128HZ
2321 config SYS_SUPPORTS_250HZ
2324 config SYS_SUPPORTS_256HZ
2327 config SYS_SUPPORTS_1000HZ
2330 config SYS_SUPPORTS_1024HZ
2333 config SYS_SUPPORTS_ARBIT_HZ
2335 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2336 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2337 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2338 !SYS_SUPPORTS_1024HZ
2343 default 100 if HZ_100
2344 default 128 if HZ_128
2345 default 250 if HZ_250
2346 default 256 if HZ_256
2347 default 1000 if HZ_1000
2348 default 1024 if HZ_1024
2350 source "kernel/Kconfig.preempt"
2353 bool "Kexec system call (EXPERIMENTAL)"
2354 depends on EXPERIMENTAL
2356 kexec is a system call that implements the ability to shutdown your
2357 current kernel, and to start another kernel. It is like a reboot
2358 but it is independent of the system firmware. And like a reboot
2359 you can start any kernel with it, not just Linux.
2361 The name comes from the similarity to the exec system call.
2363 It is an ongoing process to be certain the hardware in a machine
2364 is properly shutdown, so do not be surprised if this code does not
2365 initially work for you. It may help to enable device hotplugging
2366 support. As of this writing the exact hardware interface is
2367 strongly in flux, so no good recommendation can be made.
2370 bool "Enable seccomp to safely compute untrusted bytecode"
2374 This kernel feature is useful for number crunching applications
2375 that may need to compute untrusted bytecode during their
2376 execution. By using pipes or other transports made available to
2377 the process as file descriptors supporting the read/write
2378 syscalls, it's possible to isolate those applications in
2379 their own address space using seccomp. Once seccomp is
2380 enabled via /proc/<pid>/seccomp, it cannot be disabled
2381 and the task is only allowed to execute a few safe syscalls
2382 defined by each seccomp mode.
2384 If unsure, say Y. Only embedded should say N here.
2389 select OF_EARLY_FLATTREE
2394 config LOCKDEP_SUPPORT
2398 config STACKTRACE_SUPPORT
2402 source "init/Kconfig"
2404 source "kernel/Kconfig.freezer"
2406 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2414 bool "Support for PCI controller"
2415 depends on HW_HAS_PCI
2417 select GENERIC_PCI_IOMAP
2418 select NO_GENERIC_PCI_IOPORT_MAP
2420 Find out whether you have a PCI motherboard. PCI is the name of a
2421 bus system, i.e. the way the CPU talks to the other stuff inside
2422 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2428 source "drivers/pci/Kconfig"
2430 source "drivers/pci/pcie/Kconfig"
2433 # ISA support is now enabled via select. Too many systems still have the one
2434 # or other ISA chip on the board that users don't know about so don't expect
2435 # users to choose the right thing ...
2442 depends on HW_HAS_EISA
2444 select GENERIC_ISA_DMA
2446 The Extended Industry Standard Architecture (EISA) bus was
2447 developed as an open alternative to the IBM MicroChannel bus.
2449 The EISA bus provided some of the features of the IBM MicroChannel
2450 bus while maintaining backward compatibility with cards made for
2451 the older ISA bus. The EISA bus saw limited use between 1988 and
2452 1995 when it was made obsolete by the PCI bus.
2454 Say Y here if you are building a kernel for an EISA-based machine.
2458 source "drivers/eisa/Kconfig"
2461 bool "TURBOchannel support"
2462 depends on MACH_DECSTATION
2464 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2465 processors. TURBOchannel programming specifications are available
2467 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2469 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2470 Linux driver support status is documented at:
2471 <http://www.linux-mips.org/wiki/DECstation>
2481 select MIPS_EXTERNAL_TIMER
2486 source "drivers/pcmcia/Kconfig"
2488 source "drivers/pci/hotplug/Kconfig"
2491 bool "RapidIO support"
2495 If you say Y here, the kernel will include drivers and
2496 infrastructure code to support RapidIO interconnect devices.
2498 source "drivers/rapidio/Kconfig"
2502 menu "Executable file formats"
2504 source "fs/Kconfig.binfmt"
2509 config MIPS32_COMPAT
2510 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2513 Select this option if you want Linux/MIPS 32-bit binary
2514 compatibility. Since all software available for Linux/MIPS is
2515 currently 32-bit you should say Y here.
2519 depends on MIPS32_COMPAT
2520 select ARCH_WANT_OLD_COMPAT_IPC
2523 config SYSVIPC_COMPAT
2525 depends on COMPAT && SYSVIPC
2529 bool "Kernel support for o32 binaries"
2530 depends on MIPS32_COMPAT
2532 Select this option if you want to run o32 binaries. These are pure
2533 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2534 existing binaries are in this format.
2539 bool "Kernel support for n32 binaries"
2540 depends on MIPS32_COMPAT
2542 Select this option if you want to run n32 binaries. These are
2543 64-bit binaries using 32-bit quantities for addressing and certain
2544 data that would normally be 64-bit. They are used in special
2551 default y if MIPS32_O32 || MIPS32_N32
2555 menu "Power management options"
2557 config ARCH_HIBERNATION_POSSIBLE
2559 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2561 config ARCH_SUSPEND_POSSIBLE
2563 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2565 source "kernel/power/Kconfig"
2569 source "arch/mips/kernel/cpufreq/Kconfig"
2571 source "net/Kconfig"
2573 source "drivers/Kconfig"
2577 source "arch/mips/Kconfig.debug"
2579 source "security/Kconfig"
2581 source "crypto/Kconfig"
2583 source "lib/Kconfig"