4 select ARCH_MIGHT_HAVE_PC_PARPORT
5 select HAVE_CONTEXT_TRACKING
6 select HAVE_GENERIC_DMA_COHERENT
9 select HAVE_PERF_EVENTS
10 select PERF_USE_VMALLOC
12 select HAVE_ARCH_TRACEHOOK
13 select ARCH_HAVE_CUSTOM_GPIO_H
14 select HAVE_FUNCTION_TRACER
15 select HAVE_FUNCTION_TRACE_MCOUNT_TEST
16 select HAVE_DYNAMIC_FTRACE
17 select HAVE_FTRACE_MCOUNT_RECORD
18 select HAVE_C_RECORDMCOUNT
19 select HAVE_FUNCTION_GRAPH_TRACER
21 select HAVE_KRETPROBES
22 select HAVE_DEBUG_KMEMLEAK
23 select HAVE_SYSCALL_TRACEPOINTS
24 select ARCH_BINFMT_ELF_RANDOMIZE_PIE
25 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT
26 select RTC_LIB if !MACH_LOONGSON
27 select GENERIC_ATOMIC64 if !64BIT
28 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
30 select HAVE_DMA_API_DEBUG
31 select GENERIC_IRQ_PROBE
32 select GENERIC_IRQ_SHOW
33 select GENERIC_PCI_IOMAP
34 select HAVE_ARCH_JUMP_LABEL
35 select ARCH_WANT_IPC_PARSE_VERSION
36 select IRQ_FORCED_THREADING
38 select HAVE_MEMBLOCK_NODE_MAP
39 select ARCH_DISCARD_MEMBLOCK
40 select GENERIC_SMP_IDLE_THREAD
41 select BUILDTIME_EXTABLE_SORT
42 select GENERIC_CLOCKEVENTS
43 select GENERIC_CMOS_UPDATE
44 select HAVE_MOD_ARCH_SPECIFIC
46 select MODULES_USE_ELF_REL if MODULES
47 select MODULES_USE_ELF_RELA if MODULES && 64BIT
48 select CLONE_BACKWARDS
49 select HAVE_DEBUG_STACKOVERFLOW
51 menu "Machine selection"
58 bool "Alchemy processor based machines"
59 select 64BIT_PHYS_ADDR
63 select SYS_HAS_CPU_MIPS32_R1
64 select SYS_SUPPORTS_32BIT_KERNEL
65 select SYS_SUPPORTS_APM_EMULATION
66 select ARCH_REQUIRE_GPIOLIB
67 select SYS_SUPPORTS_ZBOOT
68 select USB_ARCH_HAS_OHCI
69 select USB_ARCH_HAS_EHCI
72 bool "Texas Instruments AR7"
74 select DMA_NONCOHERENT
80 select SYS_HAS_CPU_MIPS32_R1
81 select SYS_HAS_EARLY_PRINTK
82 select SYS_SUPPORTS_32BIT_KERNEL
83 select SYS_SUPPORTS_LITTLE_ENDIAN
84 select SYS_SUPPORTS_ZBOOT_UART16550
85 select ARCH_REQUIRE_GPIOLIB
89 Support for the Texas Instruments AR7 System-on-a-Chip
90 family: TNETD7100, 7200 and 7300.
93 bool "Atheros AR71XX/AR724X/AR913X based boards"
94 select ARCH_REQUIRE_GPIOLIB
98 select DMA_NONCOHERENT
103 select SYS_HAS_CPU_MIPS32_R2
104 select SYS_HAS_EARLY_PRINTK
105 select SYS_SUPPORTS_32BIT_KERNEL
106 select SYS_SUPPORTS_BIG_ENDIAN
108 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
111 bool "Broadcom BCM47XX based boards"
112 select ARCH_WANT_OPTIONAL_GPIOLIB
116 select DMA_NONCOHERENT
119 select SYS_HAS_CPU_MIPS32_R1
120 select NO_EXCEPT_FILL
121 select SYS_SUPPORTS_32BIT_KERNEL
122 select SYS_SUPPORTS_LITTLE_ENDIAN
123 select SYS_HAS_EARLY_PRINTK
124 select EARLY_PRINTK_8250 if EARLY_PRINTK
126 Support for BCM47XX based boards
129 bool "Broadcom BCM63XX based boards"
133 select DMA_NONCOHERENT
135 select SYS_SUPPORTS_32BIT_KERNEL
136 select SYS_SUPPORTS_BIG_ENDIAN
137 select SYS_HAS_EARLY_PRINTK
139 select ARCH_REQUIRE_GPIOLIB
141 select MIPS_L1_CACHE_SHIFT_4
143 Support for BCM63XX based boards
150 select DMA_NONCOHERENT
151 select EARLY_PRINTK_8250 if EARLY_PRINTK
157 select PCI_GT64XXX_PCI0
159 select SYS_HAS_CPU_NEVADA
160 select SYS_HAS_EARLY_PRINTK
161 select SYS_SUPPORTS_32BIT_KERNEL
162 select SYS_SUPPORTS_64BIT_KERNEL
163 select SYS_SUPPORTS_LITTLE_ENDIAN
165 config MACH_DECSTATION
172 select CPU_DADDI_WORKAROUNDS if 64BIT
173 select CPU_R4000_WORKAROUNDS if 64BIT
174 select CPU_R4400_WORKAROUNDS if 64BIT
175 select DMA_NONCOHERENT
178 select SYS_HAS_CPU_R3000
179 select SYS_HAS_CPU_R4X00
180 select SYS_SUPPORTS_32BIT_KERNEL
181 select SYS_SUPPORTS_64BIT_KERNEL
182 select SYS_SUPPORTS_LITTLE_ENDIAN
183 select SYS_SUPPORTS_128HZ
184 select SYS_SUPPORTS_256HZ
185 select SYS_SUPPORTS_1024HZ
186 select MIPS_L1_CACHE_SHIFT_4
188 This enables support for DEC's MIPS based workstations. For details
189 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
190 DECstation porting pages on <http://decstation.unix-ag.org/>.
192 If you have one of the following DECstation Models you definitely
193 want to choose R4xx0 for the CPU Type:
200 otherwise choose R3000.
203 bool "Jazz family of machines"
206 select ARCH_MAY_HAVE_PC_FDC
209 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
210 select GENERIC_ISA_DMA
211 select HAVE_PCSPKR_PLATFORM
216 select SYS_HAS_CPU_R4X00
217 select SYS_SUPPORTS_32BIT_KERNEL
218 select SYS_SUPPORTS_64BIT_KERNEL
219 select SYS_SUPPORTS_100HZ
221 This a family of machines based on the MIPS R4030 chipset which was
222 used by several vendors to build RISC/os and Windows NT workstations.
223 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
224 Olivetti M700-10 workstations.
227 bool "Ingenic JZ4740 based machines"
228 select SYS_HAS_CPU_MIPS32_R1
229 select SYS_SUPPORTS_32BIT_KERNEL
230 select SYS_SUPPORTS_LITTLE_ENDIAN
231 select SYS_SUPPORTS_ZBOOT_UART16550
232 select DMA_NONCOHERENT
234 select ARCH_REQUIRE_GPIOLIB
235 select SYS_HAS_EARLY_PRINTK
238 select GENERIC_IRQ_CHIP
241 bool "Lantiq based platforms"
242 select DMA_NONCOHERENT
246 select SYS_HAS_CPU_MIPS32_R1
247 select SYS_HAS_CPU_MIPS32_R2
248 select SYS_SUPPORTS_BIG_ENDIAN
249 select SYS_SUPPORTS_32BIT_KERNEL
250 select SYS_SUPPORTS_MULTITHREADING
251 select SYS_HAS_EARLY_PRINTK
252 select ARCH_REQUIRE_GPIOLIB
255 select HAVE_MACH_CLKDEV
259 select PINCTRL_LANTIQ
262 bool "LASAT Networks platforms"
265 select DMA_NONCOHERENT
266 select SYS_HAS_EARLY_PRINTK
269 select PCI_GT64XXX_PCI0
271 select R5000_CPU_SCACHE
272 select SYS_HAS_CPU_R5000
273 select SYS_SUPPORTS_32BIT_KERNEL
274 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
275 select SYS_SUPPORTS_LITTLE_ENDIAN
278 bool "Loongson family of machines"
279 select SYS_SUPPORTS_ZBOOT
281 This enables the support of Loongson family of machines.
283 Loongson is a family of general-purpose MIPS-compatible CPUs.
284 developed at Institute of Computing Technology (ICT),
285 Chinese Academy of Sciences (CAS) in the People's Republic
286 of China. The chief architect is Professor Weiwu Hu.
288 config MACH_LOONGSON1
289 bool "Loongson 1 family of machines"
290 select SYS_SUPPORTS_ZBOOT
292 This enables support for the Loongson 1 based machines.
294 Loongson 1 is a family of 32-bit MIPS-compatible SoCs developed by
295 the ICT (Institute of Computing Technology) and the Chinese Academy
299 bool "MIPS Malta board"
300 select ARCH_MAY_HAVE_PC_FDC
306 select DMA_MAYBE_COHERENT
307 select GENERIC_ISA_DMA
308 select HAVE_PCSPKR_PLATFORM
315 select MIPS_CPU_SCACHE
316 select PCI_GT64XXX_PCI0
319 select SYS_HAS_CPU_MIPS32_R1
320 select SYS_HAS_CPU_MIPS32_R2
321 select SYS_HAS_CPU_MIPS64_R1
322 select SYS_HAS_CPU_MIPS64_R2
323 select SYS_HAS_CPU_NEVADA
324 select SYS_HAS_CPU_RM7000
325 select SYS_SUPPORTS_32BIT_KERNEL
326 select SYS_SUPPORTS_64BIT_KERNEL
327 select SYS_SUPPORTS_BIG_ENDIAN
328 select SYS_SUPPORTS_LITTLE_ENDIAN
329 select SYS_SUPPORTS_MIPS_CMP
330 select SYS_SUPPORTS_MULTITHREADING
331 select SYS_SUPPORTS_SMARTMIPS
332 select SYS_SUPPORTS_ZBOOT
334 This enables support for the MIPS Technologies Malta evaluation
338 bool "MIPS SEAD3 board"
344 select CPU_MIPSR2_IRQ_VI
345 select CPU_MIPSR2_IRQ_EI
346 select DMA_NONCOHERENT
351 select SYS_HAS_CPU_MIPS32_R1
352 select SYS_HAS_CPU_MIPS32_R2
353 select SYS_HAS_CPU_MIPS64_R1
354 select SYS_HAS_EARLY_PRINTK
355 select SYS_SUPPORTS_32BIT_KERNEL
356 select SYS_SUPPORTS_64BIT_KERNEL
357 select SYS_SUPPORTS_BIG_ENDIAN
358 select SYS_SUPPORTS_LITTLE_ENDIAN
359 select SYS_SUPPORTS_SMARTMIPS
360 select SYS_SUPPORTS_MICROMIPS
361 select USB_ARCH_HAS_EHCI
362 select USB_EHCI_BIG_ENDIAN_DESC
363 select USB_EHCI_BIG_ENDIAN_MMIO
366 This enables support for the MIPS Technologies SEAD3 evaluation
370 bool "NEC EMMA2RH Mark-eins board"
374 This enables support for the NEC Electronics Mark-eins boards.
377 bool "NEC VR4100 series based machines"
380 select SYS_HAS_CPU_VR41XX
381 select ARCH_REQUIRE_GPIOLIB
384 bool "NXP STB220 board"
387 Support for NXP Semiconductors STB220 Development Board.
394 Support for NXP Semiconductors STB225 Development Board.
397 bool "PMC-Sierra MSP chipsets"
400 select DMA_NONCOHERENT
402 select NO_EXCEPT_FILL
404 select SYS_HAS_CPU_MIPS32_R1
405 select SYS_HAS_CPU_MIPS32_R2
406 select SYS_SUPPORTS_32BIT_KERNEL
407 select SYS_SUPPORTS_BIG_ENDIAN
410 select SERIAL_8250_CONSOLE
411 select USB_EHCI_BIG_ENDIAN_MMIO
412 select USB_EHCI_BIG_ENDIAN_DESC
414 This adds support for the PMC-Sierra family of Multi-Service
415 Processor System-On-A-Chips. These parts include a number
416 of integrated peripherals, interfaces and DSPs in addition to
417 a variety of MIPS cores.
420 bool "Ralink based machines"
424 select DMA_NONCOHERENT
427 select SYS_HAS_CPU_MIPS32_R1
428 select SYS_HAS_CPU_MIPS32_R2
429 select SYS_SUPPORTS_32BIT_KERNEL
430 select SYS_SUPPORTS_LITTLE_ENDIAN
431 select SYS_HAS_EARLY_PRINTK
432 select HAVE_MACH_CLKDEV
434 select ARCH_HAS_RESET_CONTROLLER
435 select RESET_CONTROLLER
438 bool "SGI IP22 (Indy/Indigo2)"
444 select DEFAULT_SGI_PARTITION
445 select DMA_NONCOHERENT
449 select IP22_CPU_SCACHE
451 select GENERIC_ISA_DMA_SUPPORT_BROKEN
453 select SGI_HAS_INDYDOG
459 select SYS_HAS_CPU_R4X00
460 select SYS_HAS_CPU_R5000
462 # Disable EARLY_PRINTK for now since it leads to overwritten prom
463 # memory during early boot on some machines.
465 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
466 # for a more details discussion
468 # select SYS_HAS_EARLY_PRINTK
469 select SYS_SUPPORTS_32BIT_KERNEL
470 select SYS_SUPPORTS_64BIT_KERNEL
471 select SYS_SUPPORTS_BIG_ENDIAN
472 select MIPS_L1_CACHE_SHIFT_7
474 This are the SGI Indy, Challenge S and Indigo2, as well as certain
475 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
476 that runs on these, say Y here.
479 bool "SGI IP27 (Origin200/2000)"
483 select DEFAULT_SGI_PARTITION
485 select SYS_HAS_EARLY_PRINTK
487 select NR_CPUS_DEFAULT_64
488 select SYS_HAS_CPU_R10000
489 select SYS_SUPPORTS_64BIT_KERNEL
490 select SYS_SUPPORTS_BIG_ENDIAN
491 select SYS_SUPPORTS_NUMA
492 select SYS_SUPPORTS_SMP
493 select MIPS_L1_CACHE_SHIFT_7
495 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
496 workstations. To compile a Linux kernel that runs on these, say Y
500 bool "SGI IP28 (Indigo2 R10k)"
506 select DEFAULT_SGI_PARTITION
507 select DMA_NONCOHERENT
508 select GENERIC_ISA_DMA_SUPPORT_BROKEN
514 select SGI_HAS_INDYDOG
520 select SYS_HAS_CPU_R10000
522 # Disable EARLY_PRINTK for now since it leads to overwritten prom
523 # memory during early boot on some machines.
525 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
526 # for a more details discussion
528 # select SYS_HAS_EARLY_PRINTK
529 select SYS_SUPPORTS_64BIT_KERNEL
530 select SYS_SUPPORTS_BIG_ENDIAN
532 This is the SGI Indigo2 with R10000 processor. To compile a Linux
533 kernel that runs on these, say Y here.
542 select DMA_NONCOHERENT
545 select R5000_CPU_SCACHE
546 select RM7000_CPU_SCACHE
547 select SYS_HAS_CPU_R5000
548 select SYS_HAS_CPU_R10000 if BROKEN
549 select SYS_HAS_CPU_RM7000
550 select SYS_HAS_CPU_NEVADA
551 select SYS_SUPPORTS_64BIT_KERNEL
552 select SYS_SUPPORTS_BIG_ENDIAN
554 If you want this kernel to run on SGI O2 workstation, say Y here.
557 bool "Sibyte BCM91120C-CRhine"
560 select SIBYTE_BCM1120
562 select SYS_HAS_CPU_SB1
563 select SYS_SUPPORTS_BIG_ENDIAN
564 select SYS_SUPPORTS_LITTLE_ENDIAN
567 bool "Sibyte BCM91120x-Carmel"
570 select SIBYTE_BCM1120
572 select SYS_HAS_CPU_SB1
573 select SYS_SUPPORTS_BIG_ENDIAN
574 select SYS_SUPPORTS_LITTLE_ENDIAN
577 bool "Sibyte BCM91125C-CRhone"
580 select SIBYTE_BCM1125
582 select SYS_HAS_CPU_SB1
583 select SYS_SUPPORTS_BIG_ENDIAN
584 select SYS_SUPPORTS_HIGHMEM
585 select SYS_SUPPORTS_LITTLE_ENDIAN
588 bool "Sibyte BCM91125E-Rhone"
591 select SIBYTE_BCM1125H
593 select SYS_HAS_CPU_SB1
594 select SYS_SUPPORTS_BIG_ENDIAN
595 select SYS_SUPPORTS_LITTLE_ENDIAN
598 bool "Sibyte BCM91250A-SWARM"
601 select HAVE_PATA_PLATFORM
604 select SYS_HAS_CPU_SB1
605 select SYS_SUPPORTS_BIG_ENDIAN
606 select SYS_SUPPORTS_HIGHMEM
607 select SYS_SUPPORTS_LITTLE_ENDIAN
608 select ZONE_DMA32 if 64BIT
610 config SIBYTE_LITTLESUR
611 bool "Sibyte BCM91250C2-LittleSur"
614 select HAVE_PATA_PLATFORM
617 select SYS_HAS_CPU_SB1
618 select SYS_SUPPORTS_BIG_ENDIAN
619 select SYS_SUPPORTS_HIGHMEM
620 select SYS_SUPPORTS_LITTLE_ENDIAN
622 config SIBYTE_SENTOSA
623 bool "Sibyte BCM91250E-Sentosa"
628 select SYS_HAS_CPU_SB1
629 select SYS_SUPPORTS_BIG_ENDIAN
630 select SYS_SUPPORTS_LITTLE_ENDIAN
633 bool "Sibyte BCM91480B-BigSur"
636 select NR_CPUS_DEFAULT_4
637 select SIBYTE_BCM1x80
639 select SYS_HAS_CPU_SB1
640 select SYS_SUPPORTS_BIG_ENDIAN
641 select SYS_SUPPORTS_HIGHMEM
642 select SYS_SUPPORTS_LITTLE_ENDIAN
643 select ZONE_DMA32 if 64BIT
646 bool "SNI RM200/300/400"
647 select FW_ARC if CPU_LITTLE_ENDIAN
648 select FW_ARC32 if CPU_LITTLE_ENDIAN
649 select FW_SNIPROM if CPU_BIG_ENDIAN
650 select ARCH_MAY_HAVE_PC_FDC
654 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
655 select DMA_NONCOHERENT
656 select GENERIC_ISA_DMA
657 select HAVE_PCSPKR_PLATFORM
664 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
665 select SYS_HAS_CPU_R4X00
666 select SYS_HAS_CPU_R5000
667 select SYS_HAS_CPU_R10000
668 select R5000_CPU_SCACHE
669 select SYS_HAS_EARLY_PRINTK
670 select SYS_SUPPORTS_32BIT_KERNEL
671 select SYS_SUPPORTS_64BIT_KERNEL
672 select SYS_SUPPORTS_BIG_ENDIAN
673 select SYS_SUPPORTS_HIGHMEM
674 select SYS_SUPPORTS_LITTLE_ENDIAN
676 The SNI RM200/300/400 are MIPS-based machines manufactured by
677 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
678 Technology and now in turn merged with Fujitsu. Say Y here to
679 support this machine type.
682 bool "Toshiba TX39 series based machines"
685 bool "Toshiba TX49 series based machines"
687 config MIKROTIK_RB532
688 bool "Mikrotik RB532 boards"
691 select DMA_NONCOHERENT
694 select SYS_HAS_CPU_MIPS32_R1
695 select SYS_SUPPORTS_32BIT_KERNEL
696 select SYS_SUPPORTS_LITTLE_ENDIAN
699 select ARCH_REQUIRE_GPIOLIB
700 select MIPS_L1_CACHE_SHIFT_4
702 Support the Mikrotik(tm) RouterBoard 532 series,
703 based on the IDT RC32434 SoC.
705 config CAVIUM_OCTEON_SOC
706 bool "Cavium Networks Octeon SoC based boards"
708 select 64BIT_PHYS_ADDR
710 select SYS_SUPPORTS_64BIT_KERNEL
711 select SYS_SUPPORTS_BIG_ENDIAN
713 select SYS_SUPPORTS_HOTPLUG_CPU
714 select SYS_HAS_EARLY_PRINTK
715 select SYS_HAS_CPU_CAVIUM_OCTEON
719 select USB_ARCH_HAS_OHCI
720 select USB_ARCH_HAS_EHCI
722 select ARCH_REQUIRE_GPIOLIB
724 This option supports all of the Octeon reference boards from Cavium
725 Networks. It builds a kernel that dynamically determines the Octeon
726 CPU type and supports all known board reference implementations.
727 Some of the supported boards are:
734 Say Y here for most Octeon reference boards.
737 bool "Netlogic XLR/XLS based systems"
740 select SYS_HAS_CPU_XLR
741 select SYS_SUPPORTS_SMP
744 select SYS_SUPPORTS_32BIT_KERNEL
745 select SYS_SUPPORTS_64BIT_KERNEL
746 select 64BIT_PHYS_ADDR
747 select SYS_SUPPORTS_BIG_ENDIAN
748 select SYS_SUPPORTS_HIGHMEM
750 select NR_CPUS_DEFAULT_32
754 select ZONE_DMA32 if 64BIT
756 select SYS_HAS_EARLY_PRINTK
757 select USB_ARCH_HAS_OHCI if USB_SUPPORT
758 select USB_ARCH_HAS_EHCI if USB_SUPPORT
759 select SYS_SUPPORTS_ZBOOT
760 select SYS_SUPPORTS_ZBOOT_UART16550
762 Support for systems based on Netlogic XLR and XLS processors.
763 Say Y here if you have a XLR or XLS based board.
766 bool "Netlogic XLP based systems"
769 select SYS_HAS_CPU_XLP
770 select SYS_SUPPORTS_SMP
772 select SYS_SUPPORTS_32BIT_KERNEL
773 select SYS_SUPPORTS_64BIT_KERNEL
774 select 64BIT_PHYS_ADDR
775 select SYS_SUPPORTS_BIG_ENDIAN
776 select SYS_SUPPORTS_LITTLE_ENDIAN
777 select SYS_SUPPORTS_HIGHMEM
779 select NR_CPUS_DEFAULT_32
783 select ARCH_SUPPORTS_MSI
784 select ZONE_DMA32 if 64BIT
786 select SYS_HAS_EARLY_PRINTK
788 select SYS_SUPPORTS_ZBOOT
789 select SYS_SUPPORTS_ZBOOT_UART16550
791 This board is based on Netlogic XLP Processor.
792 Say Y here if you have a XLP based board.
796 source "arch/mips/alchemy/Kconfig"
797 source "arch/mips/ath79/Kconfig"
798 source "arch/mips/bcm47xx/Kconfig"
799 source "arch/mips/bcm63xx/Kconfig"
800 source "arch/mips/jazz/Kconfig"
801 source "arch/mips/jz4740/Kconfig"
802 source "arch/mips/lantiq/Kconfig"
803 source "arch/mips/lasat/Kconfig"
804 source "arch/mips/pmcs-msp71xx/Kconfig"
805 source "arch/mips/ralink/Kconfig"
806 source "arch/mips/sgi-ip27/Kconfig"
807 source "arch/mips/sibyte/Kconfig"
808 source "arch/mips/txx9/Kconfig"
809 source "arch/mips/vr41xx/Kconfig"
810 source "arch/mips/cavium-octeon/Kconfig"
811 source "arch/mips/loongson/Kconfig"
812 source "arch/mips/loongson1/Kconfig"
813 source "arch/mips/netlogic/Kconfig"
817 config RWSEM_GENERIC_SPINLOCK
821 config RWSEM_XCHGADD_ALGORITHM
824 config ARCH_HAS_ILOG2_U32
828 config ARCH_HAS_ILOG2_U64
832 config GENERIC_HWEIGHT
836 config GENERIC_CALIBRATE_DELAY
840 config SCHED_OMIT_FRAME_POINTER
845 # Select some configuration options automatically based on user selections.
850 config ARCH_MAY_HAVE_PC_FDC
893 select ARCH_REQUIRE_GPIOLIB
899 config ARCH_DMA_ADDR_T_64BIT
900 def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT
902 config DMA_MAYBE_COHERENT
903 select DMA_NONCOHERENT
909 config DMA_NONCOHERENT
911 select NEED_DMA_MAP_STATE
913 config NEED_DMA_MAP_STATE
916 config SYS_HAS_EARLY_PRINTK
920 bool "Support for hot-pluggable CPUs"
921 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
923 Say Y here to allow turning CPUs off and on. CPUs can be
924 controlled through /sys/devices/system/cpu.
925 (Note: power management support will enable this option
926 automatically on SMP systems. )
927 Say N if you want to disable CPU hotplug.
929 config SYS_SUPPORTS_HOTPLUG_CPU
953 config GENERIC_ISA_DMA
955 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
958 config GENERIC_ISA_DMA_SUPPORT_BROKEN
960 select GENERIC_ISA_DMA
969 # Endianness selection. Sufficiently obscure so many users don't know what to
970 # answer,so we try hard to limit the available choices. Also the use of a
971 # choice statement should be more obvious to the user.
974 prompt "Endianness selection"
976 Some MIPS machines can be configured for either little or big endian
977 byte order. These modes require different kernels and a different
978 Linux distribution. In general there is one preferred byteorder for a
979 particular system but some systems are just as commonly used in the
980 one or the other endianness.
982 config CPU_BIG_ENDIAN
984 depends on SYS_SUPPORTS_BIG_ENDIAN
986 config CPU_LITTLE_ENDIAN
988 depends on SYS_SUPPORTS_LITTLE_ENDIAN
995 config SYS_SUPPORTS_APM_EMULATION
998 config SYS_SUPPORTS_BIG_ENDIAN
1001 config SYS_SUPPORTS_LITTLE_ENDIAN
1004 config SYS_SUPPORTS_HUGETLBFS
1006 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1009 config MIPS_HUGE_TLB_SUPPORT
1010 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1033 config PCI_GT64XXX_PCI0
1036 config NO_EXCEPT_FILL
1043 select DMA_NONCOHERENT
1045 select SWAP_IO_SPACE
1046 select SYS_HAS_CPU_R5500
1047 select SYS_SUPPORTS_32BIT_KERNEL
1048 select SYS_SUPPORTS_64BIT_KERNEL
1049 select SYS_SUPPORTS_BIG_ENDIAN
1056 select DMA_NONCOHERENT
1057 select SYS_HAS_CPU_MIPS32_R2
1058 select SYS_SUPPORTS_32BIT_KERNEL
1059 select SYS_SUPPORTS_LITTLE_ENDIAN
1060 select SYS_SUPPORTS_BIG_ENDIAN
1061 select CPU_MIPSR2_IRQ_VI
1067 config SWAP_IO_SPACE
1070 config SGI_HAS_INDYDOG
1082 config SGI_HAS_ZILOG
1085 config SGI_HAS_I8042
1088 config DEFAULT_SGI_PARTITION
1100 config MIPS_L1_CACHE_SHIFT_4
1103 config MIPS_L1_CACHE_SHIFT_5
1106 config MIPS_L1_CACHE_SHIFT_6
1109 config MIPS_L1_CACHE_SHIFT_7
1112 config MIPS_L1_CACHE_SHIFT
1114 default "4" if MIPS_L1_CACHE_SHIFT_4
1115 default "5" if MIPS_L1_CACHE_SHIFT_5
1116 default "6" if MIPS_L1_CACHE_SHIFT_6
1117 default "7" if MIPS_L1_CACHE_SHIFT_7
1120 config HAVE_STD_PC_SERIAL_PORT
1124 bool "ARC console support"
1125 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1129 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1134 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1143 menu "CPU selection"
1149 config CPU_LOONGSON2E
1151 depends on SYS_HAS_CPU_LOONGSON2E
1152 select CPU_LOONGSON2
1154 The Loongson 2E processor implements the MIPS III instruction set
1155 with many extensions.
1157 It has an internal FPGA northbridge, which is compatible to
1160 config CPU_LOONGSON2F
1162 depends on SYS_HAS_CPU_LOONGSON2F
1163 select CPU_LOONGSON2
1164 select ARCH_REQUIRE_GPIOLIB
1166 The Loongson 2F processor implements the MIPS III instruction set
1167 with many extensions.
1169 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1170 have a similar programming interface with FPGA northbridge used in
1173 config CPU_LOONGSON1B
1175 depends on SYS_HAS_CPU_LOONGSON1B
1176 select CPU_LOONGSON1
1178 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1179 release 2 instruction set.
1181 config CPU_MIPS32_R1
1182 bool "MIPS32 Release 1"
1183 depends on SYS_HAS_CPU_MIPS32_R1
1184 select CPU_HAS_PREFETCH
1185 select CPU_SUPPORTS_32BIT_KERNEL
1186 select CPU_SUPPORTS_HIGHMEM
1188 Choose this option to build a kernel for release 1 or later of the
1189 MIPS32 architecture. Most modern embedded systems with a 32-bit
1190 MIPS processor are based on a MIPS32 processor. If you know the
1191 specific type of processor in your system, choose those that one
1192 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1193 Release 2 of the MIPS32 architecture is available since several
1194 years so chances are you even have a MIPS32 Release 2 processor
1195 in which case you should choose CPU_MIPS32_R2 instead for better
1198 config CPU_MIPS32_R2
1199 bool "MIPS32 Release 2"
1200 depends on SYS_HAS_CPU_MIPS32_R2
1201 select CPU_HAS_PREFETCH
1202 select CPU_SUPPORTS_32BIT_KERNEL
1203 select CPU_SUPPORTS_HIGHMEM
1206 Choose this option to build a kernel for release 2 or later of the
1207 MIPS32 architecture. Most modern embedded systems with a 32-bit
1208 MIPS processor are based on a MIPS32 processor. If you know the
1209 specific type of processor in your system, choose those that one
1210 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1212 config CPU_MIPS64_R1
1213 bool "MIPS64 Release 1"
1214 depends on SYS_HAS_CPU_MIPS64_R1
1215 select CPU_HAS_PREFETCH
1216 select CPU_SUPPORTS_32BIT_KERNEL
1217 select CPU_SUPPORTS_64BIT_KERNEL
1218 select CPU_SUPPORTS_HIGHMEM
1219 select CPU_SUPPORTS_HUGEPAGES
1221 Choose this option to build a kernel for release 1 or later of the
1222 MIPS64 architecture. Many modern embedded systems with a 64-bit
1223 MIPS processor are based on a MIPS64 processor. If you know the
1224 specific type of processor in your system, choose those that one
1225 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1226 Release 2 of the MIPS64 architecture is available since several
1227 years so chances are you even have a MIPS64 Release 2 processor
1228 in which case you should choose CPU_MIPS64_R2 instead for better
1231 config CPU_MIPS64_R2
1232 bool "MIPS64 Release 2"
1233 depends on SYS_HAS_CPU_MIPS64_R2
1234 select CPU_HAS_PREFETCH
1235 select CPU_SUPPORTS_32BIT_KERNEL
1236 select CPU_SUPPORTS_64BIT_KERNEL
1237 select CPU_SUPPORTS_HIGHMEM
1238 select CPU_SUPPORTS_HUGEPAGES
1240 Choose this option to build a kernel for release 2 or later of the
1241 MIPS64 architecture. Many modern embedded systems with a 64-bit
1242 MIPS processor are based on a MIPS64 processor. If you know the
1243 specific type of processor in your system, choose those that one
1244 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1248 depends on SYS_HAS_CPU_R3000
1250 select CPU_SUPPORTS_32BIT_KERNEL
1251 select CPU_SUPPORTS_HIGHMEM
1253 Please make sure to pick the right CPU type. Linux/MIPS is not
1254 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1255 *not* work on R4000 machines and vice versa. However, since most
1256 of the supported machines have an R4000 (or similar) CPU, R4x00
1257 might be a safe bet. If the resulting kernel does not work,
1258 try to recompile with R3000.
1262 depends on SYS_HAS_CPU_TX39XX
1263 select CPU_SUPPORTS_32BIT_KERNEL
1267 depends on SYS_HAS_CPU_VR41XX
1268 select CPU_SUPPORTS_32BIT_KERNEL
1269 select CPU_SUPPORTS_64BIT_KERNEL
1271 The options selects support for the NEC VR4100 series of processors.
1272 Only choose this option if you have one of these processors as a
1273 kernel built with this option will not run on any other type of
1274 processor or vice versa.
1278 depends on SYS_HAS_CPU_R4300
1279 select CPU_SUPPORTS_32BIT_KERNEL
1280 select CPU_SUPPORTS_64BIT_KERNEL
1282 MIPS Technologies R4300-series processors.
1286 depends on SYS_HAS_CPU_R4X00
1287 select CPU_SUPPORTS_32BIT_KERNEL
1288 select CPU_SUPPORTS_64BIT_KERNEL
1289 select CPU_SUPPORTS_HUGEPAGES
1291 MIPS Technologies R4000-series processors other than 4300, including
1292 the R4000, R4400, R4600, and 4700.
1296 depends on SYS_HAS_CPU_TX49XX
1297 select CPU_HAS_PREFETCH
1298 select CPU_SUPPORTS_32BIT_KERNEL
1299 select CPU_SUPPORTS_64BIT_KERNEL
1300 select CPU_SUPPORTS_HUGEPAGES
1304 depends on SYS_HAS_CPU_R5000
1305 select CPU_SUPPORTS_32BIT_KERNEL
1306 select CPU_SUPPORTS_64BIT_KERNEL
1307 select CPU_SUPPORTS_HUGEPAGES
1309 MIPS Technologies R5000-series processors other than the Nevada.
1313 depends on SYS_HAS_CPU_R5432
1314 select CPU_SUPPORTS_32BIT_KERNEL
1315 select CPU_SUPPORTS_64BIT_KERNEL
1316 select CPU_SUPPORTS_HUGEPAGES
1320 depends on SYS_HAS_CPU_R5500
1321 select CPU_SUPPORTS_32BIT_KERNEL
1322 select CPU_SUPPORTS_64BIT_KERNEL
1323 select CPU_SUPPORTS_HUGEPAGES
1325 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1330 depends on SYS_HAS_CPU_R6000
1331 select CPU_SUPPORTS_32BIT_KERNEL
1333 MIPS Technologies R6000 and R6000A series processors. Note these
1334 processors are extremely rare and the support for them is incomplete.
1338 depends on SYS_HAS_CPU_NEVADA
1339 select CPU_SUPPORTS_32BIT_KERNEL
1340 select CPU_SUPPORTS_64BIT_KERNEL
1341 select CPU_SUPPORTS_HUGEPAGES
1343 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1347 depends on SYS_HAS_CPU_R8000
1348 select CPU_HAS_PREFETCH
1349 select CPU_SUPPORTS_64BIT_KERNEL
1351 MIPS Technologies R8000 processors. Note these processors are
1352 uncommon and the support for them is incomplete.
1356 depends on SYS_HAS_CPU_R10000
1357 select CPU_HAS_PREFETCH
1358 select CPU_SUPPORTS_32BIT_KERNEL
1359 select CPU_SUPPORTS_64BIT_KERNEL
1360 select CPU_SUPPORTS_HIGHMEM
1361 select CPU_SUPPORTS_HUGEPAGES
1363 MIPS Technologies R10000-series processors.
1367 depends on SYS_HAS_CPU_RM7000
1368 select CPU_HAS_PREFETCH
1369 select CPU_SUPPORTS_32BIT_KERNEL
1370 select CPU_SUPPORTS_64BIT_KERNEL
1371 select CPU_SUPPORTS_HIGHMEM
1372 select CPU_SUPPORTS_HUGEPAGES
1376 depends on SYS_HAS_CPU_SB1
1377 select CPU_SUPPORTS_32BIT_KERNEL
1378 select CPU_SUPPORTS_64BIT_KERNEL
1379 select CPU_SUPPORTS_HIGHMEM
1380 select CPU_SUPPORTS_HUGEPAGES
1381 select WEAK_ORDERING
1383 config CPU_CAVIUM_OCTEON
1384 bool "Cavium Octeon processor"
1385 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1386 select ARCH_SPARSEMEM_ENABLE
1387 select CPU_HAS_PREFETCH
1388 select CPU_SUPPORTS_64BIT_KERNEL
1389 select SYS_SUPPORTS_SMP
1390 select NR_CPUS_DEFAULT_16
1391 select WEAK_ORDERING
1392 select CPU_SUPPORTS_HIGHMEM
1393 select CPU_SUPPORTS_HUGEPAGES
1396 select USB_EHCI_BIG_ENDIAN_MMIO
1397 select SYS_HAS_DMA_OPS
1398 select MIPS_L1_CACHE_SHIFT_7
1400 The Cavium Octeon processor is a highly integrated chip containing
1401 many ethernet hardware widgets for networking tasks. The processor
1402 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1403 Full details can be found at http://www.caviumnetworks.com.
1406 bool "Broadcom BMIPS"
1407 depends on SYS_HAS_CPU_BMIPS
1409 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1410 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1411 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1412 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1413 select CPU_SUPPORTS_32BIT_KERNEL
1414 select DMA_NONCOHERENT
1416 select SWAP_IO_SPACE
1417 select WEAK_ORDERING
1418 select CPU_SUPPORTS_HIGHMEM
1419 select CPU_HAS_PREFETCH
1421 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1424 bool "Netlogic XLR SoC"
1425 depends on SYS_HAS_CPU_XLR
1426 select CPU_SUPPORTS_32BIT_KERNEL
1427 select CPU_SUPPORTS_64BIT_KERNEL
1428 select CPU_SUPPORTS_HIGHMEM
1429 select CPU_SUPPORTS_HUGEPAGES
1430 select WEAK_ORDERING
1431 select WEAK_REORDERING_BEYOND_LLSC
1433 Netlogic Microsystems XLR/XLS processors.
1436 bool "Netlogic XLP SoC"
1437 depends on SYS_HAS_CPU_XLP
1438 select CPU_SUPPORTS_32BIT_KERNEL
1439 select CPU_SUPPORTS_64BIT_KERNEL
1440 select CPU_SUPPORTS_HIGHMEM
1441 select WEAK_ORDERING
1442 select WEAK_REORDERING_BEYOND_LLSC
1443 select CPU_HAS_PREFETCH
1446 Netlogic Microsystems XLP processors.
1450 config CPU_NOP_WORKAROUNDS
1453 config CPU_JUMP_WORKAROUNDS
1456 config CPU_LOONGSON2F_WORKAROUNDS
1457 bool "Loongson 2F Workarounds"
1459 select CPU_NOP_WORKAROUNDS
1460 select CPU_JUMP_WORKAROUNDS
1462 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1463 require workarounds. Without workarounds the system may hang
1464 unexpectedly. For more information please refer to the gas
1465 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1467 Loongson 2F03 and later have fixed these issues and no workarounds
1468 are needed. The workarounds have no significant side effect on them
1469 but may decrease the performance of the system so this option should
1470 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1473 If unsure, please say Y.
1474 endif # CPU_LOONGSON2F
1476 config SYS_SUPPORTS_ZBOOT
1478 select HAVE_KERNEL_GZIP
1479 select HAVE_KERNEL_BZIP2
1480 select HAVE_KERNEL_LZ4
1481 select HAVE_KERNEL_LZMA
1482 select HAVE_KERNEL_LZO
1483 select HAVE_KERNEL_XZ
1485 config SYS_SUPPORTS_ZBOOT_UART16550
1487 select SYS_SUPPORTS_ZBOOT
1489 config CPU_LOONGSON2
1491 select CPU_SUPPORTS_32BIT_KERNEL
1492 select CPU_SUPPORTS_64BIT_KERNEL
1493 select CPU_SUPPORTS_HIGHMEM
1494 select CPU_SUPPORTS_HUGEPAGES
1496 config CPU_LOONGSON1
1500 select CPU_HAS_PREFETCH
1501 select CPU_SUPPORTS_32BIT_KERNEL
1502 select CPU_SUPPORTS_HIGHMEM
1504 config CPU_BMIPS32_3300
1505 select SMP_UP if SMP
1508 config CPU_BMIPS4350
1510 select SYS_SUPPORTS_SMP
1511 select SYS_SUPPORTS_HOTPLUG_CPU
1513 config CPU_BMIPS4380
1515 select SYS_SUPPORTS_SMP
1516 select SYS_SUPPORTS_HOTPLUG_CPU
1518 config CPU_BMIPS5000
1520 select MIPS_CPU_SCACHE
1521 select SYS_SUPPORTS_SMP
1522 select SYS_SUPPORTS_HOTPLUG_CPU
1524 config SYS_HAS_CPU_LOONGSON2E
1527 config SYS_HAS_CPU_LOONGSON2F
1529 select CPU_SUPPORTS_CPUFREQ
1530 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1531 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1533 config SYS_HAS_CPU_LOONGSON1B
1536 config SYS_HAS_CPU_MIPS32_R1
1539 config SYS_HAS_CPU_MIPS32_R2
1542 config SYS_HAS_CPU_MIPS64_R1
1545 config SYS_HAS_CPU_MIPS64_R2
1548 config SYS_HAS_CPU_R3000
1551 config SYS_HAS_CPU_TX39XX
1554 config SYS_HAS_CPU_VR41XX
1557 config SYS_HAS_CPU_R4300
1560 config SYS_HAS_CPU_R4X00
1563 config SYS_HAS_CPU_TX49XX
1566 config SYS_HAS_CPU_R5000
1569 config SYS_HAS_CPU_R5432
1572 config SYS_HAS_CPU_R5500
1575 config SYS_HAS_CPU_R6000
1578 config SYS_HAS_CPU_NEVADA
1581 config SYS_HAS_CPU_R8000
1584 config SYS_HAS_CPU_R10000
1587 config SYS_HAS_CPU_RM7000
1590 config SYS_HAS_CPU_SB1
1593 config SYS_HAS_CPU_CAVIUM_OCTEON
1596 config SYS_HAS_CPU_BMIPS
1599 config SYS_HAS_CPU_BMIPS32_3300
1601 select SYS_HAS_CPU_BMIPS
1603 config SYS_HAS_CPU_BMIPS4350
1605 select SYS_HAS_CPU_BMIPS
1607 config SYS_HAS_CPU_BMIPS4380
1609 select SYS_HAS_CPU_BMIPS
1611 config SYS_HAS_CPU_BMIPS5000
1613 select SYS_HAS_CPU_BMIPS
1615 config SYS_HAS_CPU_XLR
1618 config SYS_HAS_CPU_XLP
1622 # CPU may reorder R->R, R->W, W->R, W->W
1623 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1625 config WEAK_ORDERING
1629 # CPU may reorder reads and writes beyond LL/SC
1630 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1632 config WEAK_REORDERING_BEYOND_LLSC
1637 # These two indicate any level of the MIPS32 and MIPS64 architecture
1641 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1645 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1648 # These two indicate the revision of the architecture, either Release 1 or Release 2
1652 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1656 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1658 config SYS_SUPPORTS_32BIT_KERNEL
1660 config SYS_SUPPORTS_64BIT_KERNEL
1662 config CPU_SUPPORTS_32BIT_KERNEL
1664 config CPU_SUPPORTS_64BIT_KERNEL
1666 config CPU_SUPPORTS_CPUFREQ
1668 config CPU_SUPPORTS_ADDRWINCFG
1670 config CPU_SUPPORTS_HUGEPAGES
1672 config CPU_SUPPORTS_UNCACHED_ACCELERATED
1674 config MIPS_PGD_C0_CONTEXT
1676 default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
1679 # Set to y for ptrace access to watch registers.
1681 config HARDWARE_WATCHPOINTS
1683 default y if CPU_MIPSR1 || CPU_MIPSR2
1688 prompt "Kernel code model"
1690 You should only select this option if you have a workload that
1691 actually benefits from 64-bit processing or if your machine has
1692 large memory. You will only be presented a single option in this
1693 menu if your system does not support both 32-bit and 64-bit kernels.
1696 bool "32-bit kernel"
1697 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1700 Select this option if you want to build a 32-bit kernel.
1702 bool "64-bit kernel"
1703 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1705 Select this option if you want to build a 64-bit kernel.
1710 bool "KVM Guest Kernel"
1711 depends on BROKEN_ON_SMP
1713 Select this option if building a guest kernel for KVM (Trap & Emulate) mode
1715 config KVM_HOST_FREQ
1716 int "KVM Host Processor Frequency (MHz)"
1717 depends on KVM_GUEST
1720 Select this option if building a guest kernel for KVM to skip
1721 RTC emulation when determining guest CPU Frequency. Instead, the guest
1722 processor frequency is automatically derived from the host frequency.
1725 prompt "Kernel page size"
1726 default PAGE_SIZE_4KB
1728 config PAGE_SIZE_4KB
1730 depends on !CPU_LOONGSON2
1732 This option select the standard 4kB Linux page size. On some
1733 R3000-family processors this is the only available page size. Using
1734 4kB page size will minimize memory consumption and is therefore
1735 recommended for low memory systems.
1737 config PAGE_SIZE_8KB
1739 depends on CPU_R8000 || CPU_CAVIUM_OCTEON
1741 Using 8kB page size will result in higher performance kernel at
1742 the price of higher memory consumption. This option is available
1743 only on R8000 and cnMIPS processors. Note that you will need a
1744 suitable Linux distribution to support this.
1746 config PAGE_SIZE_16KB
1748 depends on !CPU_R3000 && !CPU_TX39XX
1750 Using 16kB page size will result in higher performance kernel at
1751 the price of higher memory consumption. This option is available on
1752 all non-R3000 family processors. Note that you will need a suitable
1753 Linux distribution to support this.
1755 config PAGE_SIZE_32KB
1757 depends on CPU_CAVIUM_OCTEON
1759 Using 32kB page size will result in higher performance kernel at
1760 the price of higher memory consumption. This option is available
1761 only on cnMIPS cores. Note that you will need a suitable Linux
1762 distribution to support this.
1764 config PAGE_SIZE_64KB
1766 depends on !CPU_R3000 && !CPU_TX39XX
1768 Using 64kB page size will result in higher performance kernel at
1769 the price of higher memory consumption. This option is available on
1770 all non-R3000 family processor. Not that at the time of this
1771 writing this option is still high experimental.
1775 config FORCE_MAX_ZONEORDER
1776 int "Maximum zone order"
1777 range 14 64 if HUGETLB_PAGE && PAGE_SIZE_64KB
1778 default "14" if HUGETLB_PAGE && PAGE_SIZE_64KB
1779 range 13 64 if HUGETLB_PAGE && PAGE_SIZE_32KB
1780 default "13" if HUGETLB_PAGE && PAGE_SIZE_32KB
1781 range 12 64 if HUGETLB_PAGE && PAGE_SIZE_16KB
1782 default "12" if HUGETLB_PAGE && PAGE_SIZE_16KB
1786 The kernel memory allocator divides physically contiguous memory
1787 blocks into "zones", where each zone is a power of two number of
1788 pages. This option selects the largest power of two that the kernel
1789 keeps in the memory allocator. If you need to allocate very large
1790 blocks of physically contiguous memory, then you may need to
1791 increase this value.
1793 This config option is actually maximum order plus one. For example,
1794 a value of 11 means that the largest free memory block is 2^10 pages.
1796 The page size is not necessarily 4KB. Keep this in mind
1797 when choosing a value for this option.
1800 bool "Use GIC global counter for clock events"
1801 depends on IRQ_GIC && !(MIPS_SEAD3 || MIPS_MT_SMTC)
1803 Use the GIC global counter for the clock events. The R4K clock
1804 event driver is always present, so if the platform ends up not
1805 detecting a GIC, it will fall back to the R4K timer for the
1806 generation of clock events.
1811 config IP22_CPU_SCACHE
1816 # Support for a MIPS32 / MIPS64 style S-caches
1818 config MIPS_CPU_SCACHE
1821 select MIPS_L1_CACHE_SHIFT_6
1823 config R5000_CPU_SCACHE
1827 config RM7000_CPU_SCACHE
1831 config SIBYTE_DMA_PAGEOPS
1832 bool "Use DMA to clear/copy pages"
1835 Instead of using the CPU to zero and copy pages, use a Data Mover
1836 channel. These DMA channels are otherwise unused by the standard
1837 SiByte Linux port. Seems to give a small performance benefit.
1839 config CPU_HAS_PREFETCH
1842 config CPU_GENERIC_DUMP_TLB
1844 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
1848 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1850 config CPU_R4K_CACHE_TLB
1852 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1855 prompt "MIPS MT options"
1857 config MIPS_MT_DISABLED
1858 bool "Disable multithreading support"
1860 Use this option if your platform does not support the MT ASE
1861 which is hardware multithreading support. On systems without
1862 an MT-enabled processor, this will be the only option that is
1863 available in this menu.
1866 bool "Use 1 TC on each available VPE for SMP"
1867 depends on SYS_SUPPORTS_MULTITHREADING
1868 select CPU_MIPSR2_IRQ_VI
1869 select CPU_MIPSR2_IRQ_EI
1874 select SYS_SUPPORTS_SMP
1875 select SYS_SUPPORTS_SCHED_SMT
1876 select MIPS_PERF_SHARED_TC_COUNTERS
1878 This is a kernel model which is known as SMVP. This is supported
1879 on cores with the MT ASE and uses the available VPEs to implement
1880 virtual processors which supports SMP. This is equivalent to the
1881 Intel Hyperthreading feature. For further information go to
1882 <http://www.imgtec.com/mips/mips-multithreading.asp>.
1885 bool "Use all TCs on all VPEs for SMP (DEPRECATED)"
1886 depends on CPU_MIPS32_R2
1887 depends on SYS_SUPPORTS_MULTITHREADING
1888 select CPU_MIPSR2_IRQ_VI
1889 select CPU_MIPSR2_IRQ_EI
1893 select SYS_SUPPORTS_SMP
1894 select NR_CPUS_DEFAULT_8
1896 This is a kernel model which is known as SMTC. This is
1897 supported on cores with the MT ASE and presents all TCs
1898 available on all VPEs to support SMP. For further
1899 information see <http://www.linux-mips.org/wiki/34K#SMTC>.
1907 bool "SMT (multithreading) scheduler support"
1908 depends on SYS_SUPPORTS_SCHED_SMT
1911 SMT scheduler support improves the CPU scheduler's decision making
1912 when dealing with MIPS MT enabled cores at a cost of slightly
1913 increased overhead in some places. If unsure say N here.
1915 config SYS_SUPPORTS_SCHED_SMT
1918 config SYS_SUPPORTS_MULTITHREADING
1921 config MIPS_MT_FPAFF
1922 bool "Dynamic FPU affinity for FP-intensive threads"
1924 depends on MIPS_MT_SMP || MIPS_MT_SMTC
1926 config MIPS_VPE_LOADER
1927 bool "VPE loader support."
1928 depends on SYS_SUPPORTS_MULTITHREADING && MODULES
1929 select CPU_MIPSR2_IRQ_VI
1930 select CPU_MIPSR2_IRQ_EI
1933 Includes a loader for loading an elf relocatable object
1934 onto another VPE and running it.
1936 config MIPS_VPE_LOADER_CMP
1939 depends on MIPS_VPE_LOADER && MIPS_CMP
1941 config MIPS_VPE_LOADER_MT
1944 depends on MIPS_VPE_LOADER && !MIPS_CMP
1946 config MIPS_MT_SMTC_IM_BACKSTOP
1947 bool "Use per-TC register bits as backstop for inhibited IM bits"
1948 depends on MIPS_MT_SMTC
1951 To support multiple TC microthreads acting as "CPUs" within
1952 a VPE, VPE-wide interrupt mask bits must be specially manipulated
1953 during interrupt handling. To support legacy drivers and interrupt
1954 controller management code, SMTC has a "backstop" to track and
1955 if necessary restore the interrupt mask. This has some performance
1956 impact on interrupt service overhead.
1958 config MIPS_MT_SMTC_IRQAFF
1959 bool "Support IRQ affinity API"
1960 depends on MIPS_MT_SMTC
1963 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
1964 for SMTC Linux kernel. Requires platform support, of which
1965 an example can be found in the MIPS kernel i8259 and Malta
1966 platform code. Adds some overhead to interrupt dispatch, and
1967 should be used only if you know what you are doing.
1969 config MIPS_VPE_LOADER_TOM
1970 bool "Load VPE program into memory hidden from linux"
1971 depends on MIPS_VPE_LOADER
1974 The loader can use memory that is present but has been hidden from
1975 Linux using the kernel command line option "mem=xxMB". It's up to
1976 you to ensure the amount you put in the option and the space your
1977 program requires is less or equal to the amount physically present.
1979 config MIPS_VPE_APSP_API
1980 bool "Enable support for AP/SP API (RTLX)"
1981 depends on MIPS_VPE_LOADER
1984 config MIPS_VPE_APSP_API_CMP
1987 depends on MIPS_VPE_APSP_API && MIPS_CMP
1989 config MIPS_VPE_APSP_API_MT
1992 depends on MIPS_VPE_APSP_API && !MIPS_CMP
1995 bool "MIPS CMP support"
1996 depends on SYS_SUPPORTS_MIPS_CMP && MIPS_MT_SMP
1998 select WEAK_ORDERING
2001 Enable Coherency Manager processor (CMP) support.
2003 config SB1_PASS_1_WORKAROUNDS
2005 depends on CPU_SB1_PASS_1
2008 config SB1_PASS_2_WORKAROUNDS
2010 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2013 config SB1_PASS_2_1_WORKAROUNDS
2015 depends on CPU_SB1 && CPU_SB1_PASS_2
2019 config 64BIT_PHYS_ADDR
2022 config ARCH_PHYS_ADDR_T_64BIT
2023 def_bool 64BIT_PHYS_ADDR
2025 config CPU_HAS_SMARTMIPS
2026 depends on SYS_SUPPORTS_SMARTMIPS
2027 bool "Support for the SmartMIPS ASE"
2029 SmartMIPS is a extension of the MIPS32 architecture aimed at
2030 increased security at both hardware and software level for
2031 smartcards. Enabling this option will allow proper use of the
2032 SmartMIPS instructions by Linux applications. However a kernel with
2033 this option will not work on a MIPS core without SmartMIPS core. If
2034 you don't know you probably don't have SmartMIPS and should say N
2037 config CPU_MICROMIPS
2038 depends on SYS_SUPPORTS_MICROMIPS
2039 bool "Build kernel using microMIPS ISA"
2041 When this option is enabled the kernel will be built using the
2051 # Vectored interrupt mode is an R2 feature
2053 config CPU_MIPSR2_IRQ_VI
2057 # Extended interrupt mode is an R2 feature
2059 config CPU_MIPSR2_IRQ_EI
2064 depends on !CPU_R3000
2070 config CPU_DADDI_WORKAROUNDS
2073 config CPU_R4000_WORKAROUNDS
2075 select CPU_R4400_WORKAROUNDS
2077 config CPU_R4400_WORKAROUNDS
2081 # - Highmem only makes sense for the 32-bit kernel.
2082 # - The current highmem code will only work properly on physically indexed
2083 # caches such as R3000, SB1, R7000 or those that look like they're virtually
2084 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2085 # moment we protect the user and offer the highmem option only on machines
2086 # where it's known to be safe. This will not offer highmem on a few systems
2087 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2088 # indexed CPUs but we're playing safe.
2089 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2090 # know they might have memory configurations that could make use of highmem
2094 bool "High Memory Support"
2095 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
2097 config CPU_SUPPORTS_HIGHMEM
2100 config SYS_SUPPORTS_HIGHMEM
2103 config SYS_SUPPORTS_SMARTMIPS
2106 config SYS_SUPPORTS_MICROMIPS
2109 config ARCH_FLATMEM_ENABLE
2111 depends on !NUMA && !CPU_LOONGSON2
2113 config ARCH_DISCONTIGMEM_ENABLE
2115 default y if SGI_IP27
2117 Say Y to support efficient handling of discontiguous physical memory,
2118 for architectures which are either NUMA (Non-Uniform Memory Access)
2119 or have huge holes in the physical address space for other reasons.
2120 See <file:Documentation/vm/numa> for more.
2122 config ARCH_SPARSEMEM_ENABLE
2124 select SPARSEMEM_STATIC
2128 depends on SYS_SUPPORTS_NUMA
2130 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2131 Access). This option improves performance on systems with more
2132 than two nodes; on two node systems it is generally better to
2133 leave it disabled; on single node systems disable this option
2136 config SYS_SUPPORTS_NUMA
2142 depends on NEED_MULTIPLE_NODES
2144 config HW_PERF_EVENTS
2145 bool "Enable hardware performance counter support for perf events"
2146 depends on PERF_EVENTS && !MIPS_MT_SMTC && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP)
2149 Enable hardware performance counter support for perf events. If
2150 disabled, perf events will use software events only.
2155 bool "Multi-Processing support"
2156 depends on SYS_SUPPORTS_SMP
2158 This enables support for systems with more than one CPU. If you have
2159 a system with only one CPU, like most personal computers, say N. If
2160 you have a system with more than one CPU, say Y.
2162 If you say N here, the kernel will run on single and multiprocessor
2163 machines, but will use only one CPU of a multiprocessor machine. If
2164 you say Y here, the kernel will run on many, but not all,
2165 singleprocessor machines. On a singleprocessor machine, the kernel
2166 will run faster if you say N here.
2168 People using multiprocessor machines who say Y here should also say
2169 Y to "Enhanced Real Time Clock Support", below.
2171 See also the SMP-HOWTO available at
2172 <http://www.tldp.org/docs.html#howto>.
2174 If you don't know what to do here, say N.
2179 config SYS_SUPPORTS_MIPS_CMP
2182 config SYS_SUPPORTS_SMP
2185 config NR_CPUS_DEFAULT_4
2188 config NR_CPUS_DEFAULT_8
2191 config NR_CPUS_DEFAULT_16
2194 config NR_CPUS_DEFAULT_32
2197 config NR_CPUS_DEFAULT_64
2201 int "Maximum number of CPUs (2-64)"
2204 default "4" if NR_CPUS_DEFAULT_4
2205 default "8" if NR_CPUS_DEFAULT_8
2206 default "16" if NR_CPUS_DEFAULT_16
2207 default "32" if NR_CPUS_DEFAULT_32
2208 default "64" if NR_CPUS_DEFAULT_64
2210 This allows you to specify the maximum number of CPUs which this
2211 kernel will support. The maximum supported value is 32 for 32-bit
2212 kernel and 64 for 64-bit kernels; the minimum value which makes
2213 sense is 1 for Qemu (useful only for kernel debugging purposes)
2214 and 2 for all others.
2216 This is purely to save memory - each supported CPU adds
2217 approximately eight kilobytes to the kernel image. For best
2218 performance should round up your number of processors to the next
2221 config MIPS_PERF_SHARED_TC_COUNTERS
2225 # Timer Interrupt Frequency Configuration
2229 prompt "Timer frequency"
2232 Allows the configuration of the timer frequency.
2235 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2238 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2241 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2244 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2247 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2250 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2253 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2257 config SYS_SUPPORTS_48HZ
2260 config SYS_SUPPORTS_100HZ
2263 config SYS_SUPPORTS_128HZ
2266 config SYS_SUPPORTS_250HZ
2269 config SYS_SUPPORTS_256HZ
2272 config SYS_SUPPORTS_1000HZ
2275 config SYS_SUPPORTS_1024HZ
2278 config SYS_SUPPORTS_ARBIT_HZ
2280 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2281 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2282 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2283 !SYS_SUPPORTS_1024HZ
2288 default 100 if HZ_100
2289 default 128 if HZ_128
2290 default 250 if HZ_250
2291 default 256 if HZ_256
2292 default 1000 if HZ_1000
2293 default 1024 if HZ_1024
2295 source "kernel/Kconfig.preempt"
2298 bool "Kexec system call"
2300 kexec is a system call that implements the ability to shutdown your
2301 current kernel, and to start another kernel. It is like a reboot
2302 but it is independent of the system firmware. And like a reboot
2303 you can start any kernel with it, not just Linux.
2305 The name comes from the similarity to the exec system call.
2307 It is an ongoing process to be certain the hardware in a machine
2308 is properly shutdown, so do not be surprised if this code does not
2309 initially work for you. As of this writing the exact hardware
2310 interface is strongly in flux, so no good recommendation can be
2314 bool "Kernel crash dumps"
2316 Generate crash dump after being started by kexec.
2317 This should be normally only set in special crash dump kernels
2318 which are loaded in the main kernel with kexec-tools into
2319 a specially reserved region and then later executed after
2320 a crash by kdump/kexec. The crash dump kernel must be compiled
2321 to a memory address not used by the main kernel or firmware using
2324 config PHYSICAL_START
2325 hex "Physical address where the kernel is loaded"
2326 default "0xffffffff84000000" if 64BIT
2327 default "0x84000000" if 32BIT
2328 depends on CRASH_DUMP
2330 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2331 If you plan to use kernel for capturing the crash dump change
2332 this value to start of the reserved region (the "X" value as
2333 specified in the "crashkernel=YM@XM" command line boot parameter
2334 passed to the panic-ed kernel).
2337 bool "Enable seccomp to safely compute untrusted bytecode"
2341 This kernel feature is useful for number crunching applications
2342 that may need to compute untrusted bytecode during their
2343 execution. By using pipes or other transports made available to
2344 the process as file descriptors supporting the read/write
2345 syscalls, it's possible to isolate those applications in
2346 their own address space using seccomp. Once seccomp is
2347 enabled via /proc/<pid>/seccomp, it cannot be disabled
2348 and the task is only allowed to execute a few safe syscalls
2349 defined by each seccomp mode.
2351 If unsure, say Y. Only embedded should say N here.
2353 config CC_STACKPROTECTOR
2354 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
2356 This option turns on the -fstack-protector GCC feature. This
2357 feature puts, at the beginning of functions, a canary value on
2358 the stack just before the return address, and validates
2359 the value just before actually returning. Stack based buffer
2360 overflows (that need to overwrite this return address) now also
2361 overwrite the canary, which gets detected and the attack is then
2362 neutralized via a kernel panic.
2364 This feature requires gcc version 4.2 or above.
2366 config MIPS_O32_FP64_SUPPORT
2367 bool "Support for O32 binaries using 64-bit FP"
2368 depends on 32BIT || MIPS32_O32
2371 When this is enabled, the kernel will support use of 64-bit floating
2372 point registers with binaries using the O32 ABI along with the
2373 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
2374 32-bit MIPS systems this support is at the cost of increasing the
2375 size and complexity of the compiled FPU emulator. Thus if you are
2376 running a MIPS32 system and know that none of your userland binaries
2377 will require 64-bit floating point, you may wish to reduce the size
2378 of your kernel & potentially improve FP emulation performance by
2386 select OF_EARLY_FLATTREE
2391 config LOCKDEP_SUPPORT
2395 config STACKTRACE_SUPPORT
2399 source "init/Kconfig"
2401 source "kernel/Kconfig.freezer"
2403 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2411 bool "Support for PCI controller"
2412 depends on HW_HAS_PCI
2414 select NO_GENERIC_PCI_IOPORT_MAP
2416 Find out whether you have a PCI motherboard. PCI is the name of a
2417 bus system, i.e. the way the CPU talks to the other stuff inside
2418 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2424 source "drivers/pci/Kconfig"
2426 source "drivers/pci/pcie/Kconfig"
2429 # ISA support is now enabled via select. Too many systems still have the one
2430 # or other ISA chip on the board that users don't know about so don't expect
2431 # users to choose the right thing ...
2438 depends on HW_HAS_EISA
2440 select GENERIC_ISA_DMA
2442 The Extended Industry Standard Architecture (EISA) bus was
2443 developed as an open alternative to the IBM MicroChannel bus.
2445 The EISA bus provided some of the features of the IBM MicroChannel
2446 bus while maintaining backward compatibility with cards made for
2447 the older ISA bus. The EISA bus saw limited use between 1988 and
2448 1995 when it was made obsolete by the PCI bus.
2450 Say Y here if you are building a kernel for an EISA-based machine.
2454 source "drivers/eisa/Kconfig"
2457 bool "TURBOchannel support"
2458 depends on MACH_DECSTATION
2460 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2461 processors. TURBOchannel programming specifications are available
2463 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2465 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2466 Linux driver support status is documented at:
2467 <http://www.linux-mips.org/wiki/DECstation>
2477 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 config MIPS_EXTERNAL_TIMER
2571 if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
2572 menu "CPU Power Management"
2573 source "drivers/cpufreq/Kconfig"
2577 source "net/Kconfig"
2579 source "drivers/Kconfig"
2581 source "drivers/firmware/Kconfig"
2585 source "arch/mips/Kconfig.debug"
2587 source "security/Kconfig"
2589 source "crypto/Kconfig"
2591 source "lib/Kconfig"
2593 source "arch/mips/kvm/Kconfig"