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 HAVE_ARCH_TRANSPARENT_HUGEPAGE
23 select RTC_LIB if !MACH_LOONGSON
24 select GENERIC_ATOMIC64 if !64BIT
25 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
27 select HAVE_DMA_API_DEBUG
28 select HAVE_GENERIC_HARDIRQS
29 select GENERIC_IRQ_PROBE
30 select GENERIC_IRQ_SHOW
31 select HAVE_ARCH_JUMP_LABEL
32 select ARCH_WANT_IPC_PARSE_VERSION
33 select IRQ_FORCED_THREADING
35 select HAVE_MEMBLOCK_NODE_MAP
36 select ARCH_DISCARD_MEMBLOCK
37 select GENERIC_SMP_IDLE_THREAD
38 select BUILDTIME_EXTABLE_SORT
39 select GENERIC_CLOCKEVENTS
40 select GENERIC_CMOS_UPDATE
41 select HAVE_MOD_ARCH_SPECIFIC
42 select MODULES_USE_ELF_REL if MODULES
43 select MODULES_USE_ELF_RELA if MODULES && 64BIT
44 select GENERIC_SIGALTSTACK
45 select GENERIC_COMPAT_RT_SIGQUEUEINFO
46 select GENERIC_COMPAT_RT_SIGPROCMASK
47 select GENERIC_COMPAT_RT_SIGPENDING
49 menu "Machine selection"
59 bool "Alchemy processor based machines"
60 select 64BIT_PHYS_ADDR
64 select SYS_HAS_CPU_MIPS32_R1
65 select SYS_SUPPORTS_32BIT_KERNEL
66 select SYS_SUPPORTS_APM_EMULATION
68 select ARCH_WANT_OPTIONAL_GPIOLIB
69 select SYS_SUPPORTS_ZBOOT
70 select USB_ARCH_HAS_OHCI
71 select USB_ARCH_HAS_EHCI
74 bool "Texas Instruments AR7"
76 select DMA_NONCOHERENT
82 select SYS_HAS_CPU_MIPS32_R1
83 select SYS_HAS_EARLY_PRINTK
84 select SYS_SUPPORTS_32BIT_KERNEL
85 select SYS_SUPPORTS_LITTLE_ENDIAN
86 select SYS_SUPPORTS_ZBOOT_UART16550
87 select ARCH_REQUIRE_GPIOLIB
91 Support for the Texas Instruments AR7 System-on-a-Chip
92 family: TNETD7100, 7200 and 7300.
95 bool "Atheros AR71XX/AR724X/AR913X based boards"
96 select ARCH_REQUIRE_GPIOLIB
100 select DMA_NONCOHERENT
104 select SYS_HAS_CPU_MIPS32_R2
105 select SYS_HAS_EARLY_PRINTK
106 select SYS_SUPPORTS_32BIT_KERNEL
107 select SYS_SUPPORTS_BIG_ENDIAN
109 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
112 bool "Broadcom BCM47XX based boards"
113 select ARCH_WANT_OPTIONAL_GPIOLIB
116 select DMA_NONCOHERENT
120 select SYS_SUPPORTS_32BIT_KERNEL
121 select SYS_SUPPORTS_LITTLE_ENDIAN
122 select SYS_HAS_EARLY_PRINTK
124 Support for BCM47XX based boards
127 bool "Broadcom BCM63XX based boards"
130 select DMA_NONCOHERENT
132 select SYS_HAS_CPU_MIPS32_R1
133 select SYS_SUPPORTS_32BIT_KERNEL
134 select SYS_SUPPORTS_BIG_ENDIAN
135 select SYS_HAS_EARLY_PRINTK
137 select ARCH_REQUIRE_GPIOLIB
140 Support for BCM63XX based boards
147 select DMA_NONCOHERENT
153 select PCI_GT64XXX_PCI0
155 select SYS_HAS_CPU_NEVADA
156 select SYS_HAS_EARLY_PRINTK
157 select SYS_SUPPORTS_32BIT_KERNEL
158 select SYS_SUPPORTS_64BIT_KERNEL
159 select SYS_SUPPORTS_LITTLE_ENDIAN
161 config MACH_DECSTATION
168 select CPU_DADDI_WORKAROUNDS if 64BIT
169 select CPU_R4000_WORKAROUNDS if 64BIT
170 select CPU_R4400_WORKAROUNDS if 64BIT
171 select DMA_NONCOHERENT
174 select SYS_HAS_CPU_R3000
175 select SYS_HAS_CPU_R4X00
176 select SYS_SUPPORTS_32BIT_KERNEL
177 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
178 select SYS_SUPPORTS_LITTLE_ENDIAN
179 select SYS_SUPPORTS_128HZ
180 select SYS_SUPPORTS_256HZ
181 select SYS_SUPPORTS_1024HZ
183 This enables support for DEC's MIPS based workstations. For details
184 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
185 DECstation porting pages on <http://decstation.unix-ag.org/>.
187 If you have one of the following DECstation Models you definitely
188 want to choose R4xx0 for the CPU Type:
195 otherwise choose R3000.
198 bool "Jazz family of machines"
201 select ARCH_MAY_HAVE_PC_FDC
204 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
205 select GENERIC_ISA_DMA
206 select HAVE_PCSPKR_PLATFORM
211 select SYS_HAS_CPU_R4X00
212 select SYS_SUPPORTS_32BIT_KERNEL
213 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
214 select SYS_SUPPORTS_100HZ
216 This a family of machines based on the MIPS R4030 chipset which was
217 used by several vendors to build RISC/os and Windows NT workstations.
218 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
219 Olivetti M700-10 workstations.
222 bool "Ingenic JZ4740 based machines"
223 select SYS_HAS_CPU_MIPS32_R1
224 select SYS_SUPPORTS_32BIT_KERNEL
225 select SYS_SUPPORTS_LITTLE_ENDIAN
226 select SYS_SUPPORTS_ZBOOT_UART16550
227 select DMA_NONCOHERENT
230 select ARCH_REQUIRE_GPIOLIB
231 select SYS_HAS_EARLY_PRINTK
234 select GENERIC_IRQ_CHIP
237 bool "Lantiq based platforms"
238 select DMA_NONCOHERENT
242 select SYS_HAS_CPU_MIPS32_R1
243 select SYS_HAS_CPU_MIPS32_R2
244 select SYS_SUPPORTS_BIG_ENDIAN
245 select SYS_SUPPORTS_32BIT_KERNEL
246 select SYS_SUPPORTS_MULTITHREADING
247 select SYS_HAS_EARLY_PRINTK
248 select ARCH_REQUIRE_GPIOLIB
251 select HAVE_MACH_CLKDEV
255 select PINCTRL_LANTIQ
258 bool "LASAT Networks platforms"
261 select DMA_NONCOHERENT
262 select SYS_HAS_EARLY_PRINTK
265 select PCI_GT64XXX_PCI0
267 select R5000_CPU_SCACHE
268 select SYS_HAS_CPU_R5000
269 select SYS_SUPPORTS_32BIT_KERNEL
270 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
271 select SYS_SUPPORTS_LITTLE_ENDIAN
274 bool "Loongson family of machines"
275 select SYS_SUPPORTS_ZBOOT
277 This enables the support of Loongson family of machines.
279 Loongson is a family of general-purpose MIPS-compatible CPUs.
280 developed at Institute of Computing Technology (ICT),
281 Chinese Academy of Sciences (CAS) in the People's Republic
282 of China. The chief architect is Professor Weiwu Hu.
284 config MACH_LOONGSON1
285 bool "Loongson 1 family of machines"
286 select SYS_SUPPORTS_ZBOOT
288 This enables support for the Loongson 1 based machines.
290 Loongson 1 is a family of 32-bit MIPS-compatible SoCs developed by
291 the ICT (Institute of Computing Technology) and the Chinese Academy
295 bool "MIPS Malta board"
296 select ARCH_MAY_HAVE_PC_FDC
301 select DMA_NONCOHERENT
302 select GENERIC_ISA_DMA
303 select HAVE_PCSPKR_PLATFORM
309 select MIPS_BOARDS_GEN
311 select MIPS_CPU_SCACHE
312 select PCI_GT64XXX_PCI0
315 select SYS_HAS_CPU_MIPS32_R1
316 select SYS_HAS_CPU_MIPS32_R2
317 select SYS_HAS_CPU_MIPS64_R1
318 select SYS_HAS_CPU_MIPS64_R2
319 select SYS_HAS_CPU_NEVADA
320 select SYS_HAS_CPU_RM7000
321 select SYS_HAS_EARLY_PRINTK
322 select SYS_SUPPORTS_32BIT_KERNEL
323 select SYS_SUPPORTS_64BIT_KERNEL
324 select SYS_SUPPORTS_BIG_ENDIAN
325 select SYS_SUPPORTS_LITTLE_ENDIAN
326 select SYS_SUPPORTS_MIPS_CMP
327 select SYS_SUPPORTS_MULTITHREADING
328 select SYS_SUPPORTS_SMARTMIPS
329 select SYS_SUPPORTS_ZBOOT
331 This enables support for the MIPS Technologies Malta evaluation
335 bool "MIPS SEAD3 board"
340 select CPU_MIPSR2_IRQ_VI
341 select CPU_MIPSR2_IRQ_EI
342 select DMA_NONCOHERENT
345 select MIPS_BOARDS_GEN
346 select MIPS_CPU_SCACHE
348 select SYS_HAS_CPU_MIPS32_R1
349 select SYS_HAS_CPU_MIPS32_R2
350 select SYS_HAS_CPU_MIPS64_R1
351 select SYS_HAS_EARLY_PRINTK
352 select SYS_SUPPORTS_32BIT_KERNEL
353 select SYS_SUPPORTS_64BIT_KERNEL
354 select SYS_SUPPORTS_BIG_ENDIAN
355 select SYS_SUPPORTS_LITTLE_ENDIAN
356 select SYS_SUPPORTS_SMARTMIPS
357 select USB_ARCH_HAS_EHCI
358 select USB_EHCI_BIG_ENDIAN_DESC
359 select USB_EHCI_BIG_ENDIAN_MMIO
361 This enables support for the MIPS Technologies SEAD3 evaluation
365 bool "NEC EMMA2RH Mark-eins board"
369 This enables support for the NEC Electronics Mark-eins boards.
372 bool "NEC VR4100 series based machines"
375 select SYS_HAS_CPU_VR41XX
376 select ARCH_REQUIRE_GPIOLIB
379 bool "NXP STB220 board"
382 Support for NXP Semiconductors STB220 Development Board.
389 Support for NXP Semiconductors STB225 Development Board.
392 bool "NXP PNX8550 based JBS board"
394 select SYS_SUPPORTS_LITTLE_ENDIAN
396 config PNX8550_STB810
397 bool "NXP PNX8550 based STB810 board"
399 select SYS_SUPPORTS_LITTLE_ENDIAN
402 bool "PMC-Sierra MSP chipsets"
403 depends on EXPERIMENTAL
406 select DMA_NONCOHERENT
408 select NO_EXCEPT_FILL
410 select SYS_HAS_CPU_MIPS32_R1
411 select SYS_HAS_CPU_MIPS32_R2
412 select SYS_SUPPORTS_32BIT_KERNEL
413 select SYS_SUPPORTS_BIG_ENDIAN
416 select SERIAL_8250_CONSOLE
418 This adds support for the PMC-Sierra family of Multi-Service
419 Processor System-On-A-Chips. These parts include a number
420 of integrated peripherals, interfaces and DSPs in addition to
421 a variety of MIPS cores.
427 select CPU_MIPSR2_IRQ_VI
428 select CPU_MIPSR2_IRQ_EI
430 select DMA_NONCOHERENT
432 select SYS_HAS_EARLY_PRINTK
433 select SYS_HAS_CPU_MIPS32_R2
434 select SYS_SUPPORTS_32BIT_KERNEL
435 select SYS_SUPPORTS_BIG_ENDIAN
436 select SYS_SUPPORTS_HIGHMEM
437 select USB_OHCI_LITTLE_ENDIAN
439 This enables support for the Cisco PowerTV Platform.
442 bool "SGI IP22 (Indy/Indigo2)"
448 select DEFAULT_SGI_PARTITION
449 select DMA_NONCOHERENT
453 select IP22_CPU_SCACHE
455 select GENERIC_ISA_DMA_SUPPORT_BROKEN
457 select SGI_HAS_INDYDOG
463 select SYS_HAS_CPU_R4X00
464 select SYS_HAS_CPU_R5000
466 # Disable EARLY_PRINTK for now since it leads to overwritten prom
467 # memory during early boot on some machines.
469 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
470 # for a more details discussion
472 # select SYS_HAS_EARLY_PRINTK
473 select SYS_SUPPORTS_32BIT_KERNEL
474 select SYS_SUPPORTS_64BIT_KERNEL
475 select SYS_SUPPORTS_BIG_ENDIAN
477 This are the SGI Indy, Challenge S and Indigo2, as well as certain
478 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
479 that runs on these, say Y here.
482 bool "SGI IP27 (Origin200/2000)"
486 select DEFAULT_SGI_PARTITION
488 select SYS_HAS_EARLY_PRINTK
490 select NR_CPUS_DEFAULT_64
491 select SYS_HAS_CPU_R10000
492 select SYS_SUPPORTS_64BIT_KERNEL
493 select SYS_SUPPORTS_BIG_ENDIAN
494 select SYS_SUPPORTS_NUMA
495 select SYS_SUPPORTS_SMP
497 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
498 workstations. To compile a Linux kernel that runs on these, say Y
502 bool "SGI IP28 (Indigo2 R10k) (EXPERIMENTAL)"
503 depends on EXPERIMENTAL
509 select DEFAULT_SGI_PARTITION
510 select DMA_NONCOHERENT
511 select GENERIC_ISA_DMA_SUPPORT_BROKEN
517 select SGI_HAS_INDYDOG
523 select SYS_HAS_CPU_R10000
525 # Disable EARLY_PRINTK for now since it leads to overwritten prom
526 # memory during early boot on some machines.
528 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
529 # for a more details discussion
531 # select SYS_HAS_EARLY_PRINTK
532 select SYS_SUPPORTS_64BIT_KERNEL
533 select SYS_SUPPORTS_BIG_ENDIAN
535 This is the SGI Indigo2 with R10000 processor. To compile a Linux
536 kernel that runs on these, say Y here.
545 select DMA_NONCOHERENT
548 select R5000_CPU_SCACHE
549 select RM7000_CPU_SCACHE
550 select SYS_HAS_CPU_R5000
551 select SYS_HAS_CPU_R10000 if BROKEN
552 select SYS_HAS_CPU_RM7000
553 select SYS_HAS_CPU_NEVADA
554 select SYS_SUPPORTS_64BIT_KERNEL
555 select SYS_SUPPORTS_BIG_ENDIAN
557 If you want this kernel to run on SGI O2 workstation, say Y here.
560 bool "Sibyte BCM91120C-CRhine"
561 depends on EXPERIMENTAL
564 select SIBYTE_BCM1120
566 select SYS_HAS_CPU_SB1
567 select SYS_SUPPORTS_BIG_ENDIAN
568 select SYS_SUPPORTS_LITTLE_ENDIAN
571 bool "Sibyte BCM91120x-Carmel"
572 depends on EXPERIMENTAL
575 select SIBYTE_BCM1120
577 select SYS_HAS_CPU_SB1
578 select SYS_SUPPORTS_BIG_ENDIAN
579 select SYS_SUPPORTS_LITTLE_ENDIAN
582 bool "Sibyte BCM91125C-CRhone"
583 depends on EXPERIMENTAL
586 select SIBYTE_BCM1125
588 select SYS_HAS_CPU_SB1
589 select SYS_SUPPORTS_BIG_ENDIAN
590 select SYS_SUPPORTS_HIGHMEM
591 select SYS_SUPPORTS_LITTLE_ENDIAN
594 bool "Sibyte BCM91125E-Rhone"
595 depends on EXPERIMENTAL
598 select SIBYTE_BCM1125H
600 select SYS_HAS_CPU_SB1
601 select SYS_SUPPORTS_BIG_ENDIAN
602 select SYS_SUPPORTS_LITTLE_ENDIAN
605 bool "Sibyte BCM91250A-SWARM"
608 select HAVE_PATA_PLATFORM
609 select NR_CPUS_DEFAULT_2
612 select SYS_HAS_CPU_SB1
613 select SYS_SUPPORTS_BIG_ENDIAN
614 select SYS_SUPPORTS_HIGHMEM
615 select SYS_SUPPORTS_LITTLE_ENDIAN
616 select ZONE_DMA32 if 64BIT
618 config SIBYTE_LITTLESUR
619 bool "Sibyte BCM91250C2-LittleSur"
620 depends on EXPERIMENTAL
623 select HAVE_PATA_PLATFORM
624 select NR_CPUS_DEFAULT_2
627 select SYS_HAS_CPU_SB1
628 select SYS_SUPPORTS_BIG_ENDIAN
629 select SYS_SUPPORTS_HIGHMEM
630 select SYS_SUPPORTS_LITTLE_ENDIAN
632 config SIBYTE_SENTOSA
633 bool "Sibyte BCM91250E-Sentosa"
634 depends on EXPERIMENTAL
637 select NR_CPUS_DEFAULT_2
640 select SYS_HAS_CPU_SB1
641 select SYS_SUPPORTS_BIG_ENDIAN
642 select SYS_SUPPORTS_LITTLE_ENDIAN
645 bool "Sibyte BCM91480B-BigSur"
648 select NR_CPUS_DEFAULT_4
649 select SIBYTE_BCM1x80
651 select SYS_HAS_CPU_SB1
652 select SYS_SUPPORTS_BIG_ENDIAN
653 select SYS_SUPPORTS_HIGHMEM
654 select SYS_SUPPORTS_LITTLE_ENDIAN
655 select ZONE_DMA32 if 64BIT
658 bool "SNI RM200/300/400"
659 select FW_ARC if CPU_LITTLE_ENDIAN
660 select FW_ARC32 if CPU_LITTLE_ENDIAN
661 select SNIPROM if CPU_BIG_ENDIAN
662 select ARCH_MAY_HAVE_PC_FDC
666 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
667 select DMA_NONCOHERENT
668 select GENERIC_ISA_DMA
669 select HAVE_PCSPKR_PLATFORM
676 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
677 select SYS_HAS_CPU_R4X00
678 select SYS_HAS_CPU_R5000
679 select SYS_HAS_CPU_R10000
680 select R5000_CPU_SCACHE
681 select SYS_HAS_EARLY_PRINTK
682 select SYS_SUPPORTS_32BIT_KERNEL
683 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
684 select SYS_SUPPORTS_BIG_ENDIAN
685 select SYS_SUPPORTS_HIGHMEM
686 select SYS_SUPPORTS_LITTLE_ENDIAN
688 The SNI RM200/300/400 are MIPS-based machines manufactured by
689 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
690 Technology and now in turn merged with Fujitsu. Say Y here to
691 support this machine type.
694 bool "Toshiba TX39 series based machines"
697 bool "Toshiba TX49 series based machines"
699 config MIKROTIK_RB532
700 bool "Mikrotik RB532 boards"
703 select DMA_NONCOHERENT
706 select SYS_HAS_CPU_MIPS32_R1
707 select SYS_SUPPORTS_32BIT_KERNEL
708 select SYS_SUPPORTS_LITTLE_ENDIAN
711 select ARCH_REQUIRE_GPIOLIB
713 Support the Mikrotik(tm) RouterBoard 532 series,
714 based on the IDT RC32434 SoC.
717 bool "Wind River PPMC board"
722 select DMA_NONCOHERENT
724 select PCI_GT64XXX_PCI0
726 select SYS_HAS_CPU_MIPS32_R1
727 select SYS_HAS_CPU_MIPS32_R2
728 select SYS_HAS_CPU_MIPS64_R1
729 select SYS_HAS_CPU_NEVADA
730 select SYS_HAS_CPU_RM7000
731 select SYS_SUPPORTS_32BIT_KERNEL
732 select SYS_SUPPORTS_64BIT_KERNEL
733 select SYS_SUPPORTS_BIG_ENDIAN
734 select SYS_SUPPORTS_LITTLE_ENDIAN
736 This enables support for the Wind River MIPS32 4KC PPMC evaluation
737 board, which is based on GT64120 bridge chip.
739 config CAVIUM_OCTEON_SIMULATOR
740 bool "Cavium Networks Octeon Simulator"
742 select 64BIT_PHYS_ADDR
744 select SYS_SUPPORTS_64BIT_KERNEL
745 select SYS_SUPPORTS_BIG_ENDIAN
746 select SYS_SUPPORTS_HOTPLUG_CPU
747 select SYS_HAS_CPU_CAVIUM_OCTEON
750 The Octeon simulator is software performance model of the Cavium
751 Octeon Processor. It supports simulating Octeon processors on x86
754 config CAVIUM_OCTEON_REFERENCE_BOARD
755 bool "Cavium Networks Octeon reference board"
757 select 64BIT_PHYS_ADDR
759 select SYS_SUPPORTS_64BIT_KERNEL
760 select SYS_SUPPORTS_BIG_ENDIAN
762 select SYS_SUPPORTS_HOTPLUG_CPU
763 select SYS_HAS_EARLY_PRINTK
764 select SYS_HAS_CPU_CAVIUM_OCTEON
767 select ARCH_SUPPORTS_MSI
769 select USB_ARCH_HAS_OHCI
770 select USB_ARCH_HAS_EHCI
773 This option supports all of the Octeon reference boards from Cavium
774 Networks. It builds a kernel that dynamically determines the Octeon
775 CPU type and supports all known board reference implementations.
776 Some of the supported boards are:
783 Say Y here for most Octeon reference boards.
786 bool "Netlogic XLR/XLS based systems"
787 depends on EXPERIMENTAL
790 select SYS_HAS_CPU_XLR
791 select SYS_SUPPORTS_SMP
794 select SYS_SUPPORTS_32BIT_KERNEL
795 select SYS_SUPPORTS_64BIT_KERNEL
796 select 64BIT_PHYS_ADDR
797 select SYS_SUPPORTS_BIG_ENDIAN
798 select SYS_SUPPORTS_HIGHMEM
800 select NR_CPUS_DEFAULT_32
804 select ARCH_SUPPORTS_MSI
805 select ZONE_DMA32 if 64BIT
807 select SYS_HAS_EARLY_PRINTK
808 select USB_ARCH_HAS_OHCI if USB_SUPPORT
809 select USB_ARCH_HAS_EHCI if USB_SUPPORT
811 Support for systems based on Netlogic XLR and XLS processors.
812 Say Y here if you have a XLR or XLS based board.
815 bool "Netlogic XLP based systems"
816 depends on EXPERIMENTAL
819 select SYS_HAS_CPU_XLP
820 select SYS_SUPPORTS_SMP
822 select SYS_SUPPORTS_32BIT_KERNEL
823 select SYS_SUPPORTS_64BIT_KERNEL
824 select 64BIT_PHYS_ADDR
825 select SYS_SUPPORTS_BIG_ENDIAN
826 select SYS_SUPPORTS_LITTLE_ENDIAN
827 select SYS_SUPPORTS_HIGHMEM
829 select NR_CPUS_DEFAULT_32
833 select ZONE_DMA32 if 64BIT
835 select SYS_HAS_EARLY_PRINTK
838 This board is based on Netlogic XLP Processor.
839 Say Y here if you have a XLP based board.
843 source "arch/mips/alchemy/Kconfig"
844 source "arch/mips/ath79/Kconfig"
845 source "arch/mips/bcm47xx/Kconfig"
846 source "arch/mips/bcm63xx/Kconfig"
847 source "arch/mips/jazz/Kconfig"
848 source "arch/mips/jz4740/Kconfig"
849 source "arch/mips/lantiq/Kconfig"
850 source "arch/mips/lasat/Kconfig"
851 source "arch/mips/pmc-sierra/Kconfig"
852 source "arch/mips/powertv/Kconfig"
853 source "arch/mips/sgi-ip27/Kconfig"
854 source "arch/mips/sibyte/Kconfig"
855 source "arch/mips/txx9/Kconfig"
856 source "arch/mips/vr41xx/Kconfig"
857 source "arch/mips/cavium-octeon/Kconfig"
858 source "arch/mips/loongson/Kconfig"
859 source "arch/mips/loongson1/Kconfig"
860 source "arch/mips/netlogic/Kconfig"
864 config RWSEM_GENERIC_SPINLOCK
868 config RWSEM_XCHGADD_ALGORITHM
871 config ARCH_HAS_ILOG2_U32
875 config ARCH_HAS_ILOG2_U64
879 config GENERIC_HWEIGHT
883 config GENERIC_CALIBRATE_DELAY
887 config SCHED_OMIT_FRAME_POINTER
892 # Select some configuration options automatically based on user selections.
897 config ARCH_MAY_HAVE_PC_FDC
938 select ARCH_REQUIRE_GPIOLIB
944 config ARCH_DMA_ADDR_T_64BIT
945 def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT
950 config DMA_NONCOHERENT
952 select NEED_DMA_MAP_STATE
954 config NEED_DMA_MAP_STATE
957 config SYS_HAS_EARLY_PRINTK
961 bool "Support for hot-pluggable CPUs"
962 depends on SMP && HOTPLUG && SYS_SUPPORTS_HOTPLUG_CPU
964 Say Y here to allow turning CPUs off and on. CPUs can be
965 controlled through /sys/devices/system/cpu.
966 (Note: power management support will enable this option
967 automatically on SMP systems. )
968 Say N if you want to disable CPU hotplug.
970 config SYS_SUPPORTS_HOTPLUG_CPU
985 config MIPS_DISABLE_OBSOLETE_IDE
997 config GENERIC_ISA_DMA
999 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1002 config GENERIC_ISA_DMA_SUPPORT_BROKEN
1004 select GENERIC_ISA_DMA
1012 config HOLES_IN_ZONE
1016 # Endianness selection. Sufficiently obscure so many users don't know what to
1017 # answer,so we try hard to limit the available choices. Also the use of a
1018 # choice statement should be more obvious to the user.
1021 prompt "Endianness selection"
1023 Some MIPS machines can be configured for either little or big endian
1024 byte order. These modes require different kernels and a different
1025 Linux distribution. In general there is one preferred byteorder for a
1026 particular system but some systems are just as commonly used in the
1027 one or the other endianness.
1029 config CPU_BIG_ENDIAN
1031 depends on SYS_SUPPORTS_BIG_ENDIAN
1033 config CPU_LITTLE_ENDIAN
1034 bool "Little endian"
1035 depends on SYS_SUPPORTS_LITTLE_ENDIAN
1043 config SYS_SUPPORTS_APM_EMULATION
1046 config SYS_SUPPORTS_BIG_ENDIAN
1049 config SYS_SUPPORTS_LITTLE_ENDIAN
1052 config SYS_SUPPORTS_HUGETLBFS
1054 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1057 config MIPS_HUGE_TLB_SUPPORT
1058 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1081 config MIPS_BOARDS_GEN
1084 config PCI_GT64XXX_PCI0
1087 config NO_EXCEPT_FILL
1094 select DMA_NONCOHERENT
1096 select SWAP_IO_SPACE
1097 select SYS_HAS_CPU_R5500
1098 select SYS_SUPPORTS_32BIT_KERNEL
1099 select SYS_SUPPORTS_64BIT_KERNEL
1100 select SYS_SUPPORTS_BIG_ENDIAN
1107 select DMA_NONCOHERENT
1108 select SYS_HAS_CPU_MIPS32_R2
1109 select SYS_SUPPORTS_32BIT_KERNEL
1110 select SYS_SUPPORTS_LITTLE_ENDIAN
1111 select SYS_SUPPORTS_BIG_ENDIAN
1113 select CPU_MIPSR2_IRQ_VI
1125 select DMA_NONCOHERENT
1127 select SYS_HAS_CPU_MIPS32_R1
1128 select SYS_HAS_EARLY_PRINTK
1129 select SYS_SUPPORTS_32BIT_KERNEL
1132 config SWAP_IO_SPACE
1135 config SGI_HAS_INDYDOG
1147 config SGI_HAS_ZILOG
1150 config SGI_HAS_I8042
1153 config DEFAULT_SGI_PARTITION
1165 config MIPS_L1_CACHE_SHIFT
1167 default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL
1168 default "6" if MIPS_CPU_SCACHE
1169 default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON
1172 config HAVE_STD_PC_SERIAL_PORT
1176 bool "ARC console support"
1177 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1181 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1186 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1195 menu "CPU selection"
1201 config CPU_LOONGSON2E
1203 depends on SYS_HAS_CPU_LOONGSON2E
1204 select CPU_LOONGSON2
1206 The Loongson 2E processor implements the MIPS III instruction set
1207 with many extensions.
1209 It has an internal FPGA northbridge, which is compatible to
1212 config CPU_LOONGSON2F
1214 depends on SYS_HAS_CPU_LOONGSON2F
1215 select CPU_LOONGSON2
1217 select ARCH_REQUIRE_GPIOLIB
1219 The Loongson 2F processor implements the MIPS III instruction set
1220 with many extensions.
1222 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1223 have a similar programming interface with FPGA northbridge used in
1226 config CPU_LOONGSON1B
1228 depends on SYS_HAS_CPU_LOONGSON1B
1229 select CPU_LOONGSON1
1231 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1232 release 2 instruction set.
1234 config CPU_MIPS32_R1
1235 bool "MIPS32 Release 1"
1236 depends on SYS_HAS_CPU_MIPS32_R1
1237 select CPU_HAS_PREFETCH
1238 select CPU_SUPPORTS_32BIT_KERNEL
1239 select CPU_SUPPORTS_HIGHMEM
1241 Choose this option to build a kernel for release 1 or later of the
1242 MIPS32 architecture. Most modern embedded systems with a 32-bit
1243 MIPS processor are based on a MIPS32 processor. If you know the
1244 specific type of processor in your system, choose those that one
1245 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1246 Release 2 of the MIPS32 architecture is available since several
1247 years so chances are you even have a MIPS32 Release 2 processor
1248 in which case you should choose CPU_MIPS32_R2 instead for better
1251 config CPU_MIPS32_R2
1252 bool "MIPS32 Release 2"
1253 depends on SYS_HAS_CPU_MIPS32_R2
1254 select CPU_HAS_PREFETCH
1255 select CPU_SUPPORTS_32BIT_KERNEL
1256 select CPU_SUPPORTS_HIGHMEM
1258 Choose this option to build a kernel for release 2 or later of the
1259 MIPS32 architecture. Most modern embedded systems with a 32-bit
1260 MIPS processor are based on a MIPS32 processor. If you know the
1261 specific type of processor in your system, choose those that one
1262 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1264 config CPU_MIPS64_R1
1265 bool "MIPS64 Release 1"
1266 depends on SYS_HAS_CPU_MIPS64_R1
1267 select CPU_HAS_PREFETCH
1268 select CPU_SUPPORTS_32BIT_KERNEL
1269 select CPU_SUPPORTS_64BIT_KERNEL
1270 select CPU_SUPPORTS_HIGHMEM
1271 select CPU_SUPPORTS_HUGEPAGES
1273 Choose this option to build a kernel for release 1 or later of the
1274 MIPS64 architecture. Many modern embedded systems with a 64-bit
1275 MIPS processor are based on a MIPS64 processor. If you know the
1276 specific type of processor in your system, choose those that one
1277 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1278 Release 2 of the MIPS64 architecture is available since several
1279 years so chances are you even have a MIPS64 Release 2 processor
1280 in which case you should choose CPU_MIPS64_R2 instead for better
1283 config CPU_MIPS64_R2
1284 bool "MIPS64 Release 2"
1285 depends on SYS_HAS_CPU_MIPS64_R2
1286 select CPU_HAS_PREFETCH
1287 select CPU_SUPPORTS_32BIT_KERNEL
1288 select CPU_SUPPORTS_64BIT_KERNEL
1289 select CPU_SUPPORTS_HIGHMEM
1290 select CPU_SUPPORTS_HUGEPAGES
1292 Choose this option to build a kernel for release 2 or later of the
1293 MIPS64 architecture. Many modern embedded systems with a 64-bit
1294 MIPS processor are based on a MIPS64 processor. If you know the
1295 specific type of processor in your system, choose those that one
1296 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1300 depends on SYS_HAS_CPU_R3000
1302 select CPU_SUPPORTS_32BIT_KERNEL
1303 select CPU_SUPPORTS_HIGHMEM
1305 Please make sure to pick the right CPU type. Linux/MIPS is not
1306 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1307 *not* work on R4000 machines and vice versa. However, since most
1308 of the supported machines have an R4000 (or similar) CPU, R4x00
1309 might be a safe bet. If the resulting kernel does not work,
1310 try to recompile with R3000.
1314 depends on SYS_HAS_CPU_TX39XX
1315 select CPU_SUPPORTS_32BIT_KERNEL
1319 depends on SYS_HAS_CPU_VR41XX
1320 select CPU_SUPPORTS_32BIT_KERNEL
1321 select CPU_SUPPORTS_64BIT_KERNEL
1323 The options selects support for the NEC VR4100 series of processors.
1324 Only choose this option if you have one of these processors as a
1325 kernel built with this option will not run on any other type of
1326 processor or vice versa.
1330 depends on SYS_HAS_CPU_R4300
1331 select CPU_SUPPORTS_32BIT_KERNEL
1332 select CPU_SUPPORTS_64BIT_KERNEL
1334 MIPS Technologies R4300-series processors.
1338 depends on SYS_HAS_CPU_R4X00
1339 select CPU_SUPPORTS_32BIT_KERNEL
1340 select CPU_SUPPORTS_64BIT_KERNEL
1341 select CPU_SUPPORTS_HUGEPAGES
1343 MIPS Technologies R4000-series processors other than 4300, including
1344 the R4000, R4400, R4600, and 4700.
1348 depends on SYS_HAS_CPU_TX49XX
1349 select CPU_HAS_PREFETCH
1350 select CPU_SUPPORTS_32BIT_KERNEL
1351 select CPU_SUPPORTS_64BIT_KERNEL
1352 select CPU_SUPPORTS_HUGEPAGES
1356 depends on SYS_HAS_CPU_R5000
1357 select CPU_SUPPORTS_32BIT_KERNEL
1358 select CPU_SUPPORTS_64BIT_KERNEL
1359 select CPU_SUPPORTS_HUGEPAGES
1361 MIPS Technologies R5000-series processors other than the Nevada.
1365 depends on SYS_HAS_CPU_R5432
1366 select CPU_SUPPORTS_32BIT_KERNEL
1367 select CPU_SUPPORTS_64BIT_KERNEL
1368 select CPU_SUPPORTS_HUGEPAGES
1372 depends on SYS_HAS_CPU_R5500
1373 select CPU_SUPPORTS_32BIT_KERNEL
1374 select CPU_SUPPORTS_64BIT_KERNEL
1375 select CPU_SUPPORTS_HUGEPAGES
1377 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1382 depends on EXPERIMENTAL
1383 depends on SYS_HAS_CPU_R6000
1384 select CPU_SUPPORTS_32BIT_KERNEL
1386 MIPS Technologies R6000 and R6000A series processors. Note these
1387 processors are extremely rare and the support for them is incomplete.
1391 depends on SYS_HAS_CPU_NEVADA
1392 select CPU_SUPPORTS_32BIT_KERNEL
1393 select CPU_SUPPORTS_64BIT_KERNEL
1394 select CPU_SUPPORTS_HUGEPAGES
1396 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1400 depends on EXPERIMENTAL
1401 depends on SYS_HAS_CPU_R8000
1402 select CPU_HAS_PREFETCH
1403 select CPU_SUPPORTS_64BIT_KERNEL
1405 MIPS Technologies R8000 processors. Note these processors are
1406 uncommon and the support for them is incomplete.
1410 depends on SYS_HAS_CPU_R10000
1411 select CPU_HAS_PREFETCH
1412 select CPU_SUPPORTS_32BIT_KERNEL
1413 select CPU_SUPPORTS_64BIT_KERNEL
1414 select CPU_SUPPORTS_HIGHMEM
1415 select CPU_SUPPORTS_HUGEPAGES
1417 MIPS Technologies R10000-series processors.
1421 depends on SYS_HAS_CPU_RM7000
1422 select CPU_HAS_PREFETCH
1423 select CPU_SUPPORTS_32BIT_KERNEL
1424 select CPU_SUPPORTS_64BIT_KERNEL
1425 select CPU_SUPPORTS_HIGHMEM
1426 select CPU_SUPPORTS_HUGEPAGES
1430 depends on SYS_HAS_CPU_SB1
1431 select CPU_SUPPORTS_32BIT_KERNEL
1432 select CPU_SUPPORTS_64BIT_KERNEL
1433 select CPU_SUPPORTS_HIGHMEM
1434 select CPU_SUPPORTS_HUGEPAGES
1435 select WEAK_ORDERING
1437 config CPU_CAVIUM_OCTEON
1438 bool "Cavium Octeon processor"
1439 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1440 select ARCH_SPARSEMEM_ENABLE
1441 select CPU_HAS_PREFETCH
1442 select CPU_SUPPORTS_64BIT_KERNEL
1443 select SYS_SUPPORTS_SMP
1444 select NR_CPUS_DEFAULT_16
1445 select WEAK_ORDERING
1446 select CPU_SUPPORTS_HIGHMEM
1447 select CPU_SUPPORTS_HUGEPAGES
1451 The Cavium Octeon processor is a highly integrated chip containing
1452 many ethernet hardware widgets for networking tasks. The processor
1453 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1454 Full details can be found at http://www.caviumnetworks.com.
1456 config CPU_BMIPS3300
1458 depends on SYS_HAS_CPU_BMIPS3300
1461 Broadcom BMIPS3300 processors.
1463 config CPU_BMIPS4350
1465 depends on SYS_HAS_CPU_BMIPS4350
1467 select SYS_SUPPORTS_SMP
1468 select SYS_SUPPORTS_HOTPLUG_CPU
1470 Broadcom BMIPS4350 ("VIPER") processors.
1472 config CPU_BMIPS4380
1474 depends on SYS_HAS_CPU_BMIPS4380
1476 select SYS_SUPPORTS_SMP
1477 select SYS_SUPPORTS_HOTPLUG_CPU
1479 Broadcom BMIPS4380 processors.
1481 config CPU_BMIPS5000
1483 depends on SYS_HAS_CPU_BMIPS5000
1485 select CPU_SUPPORTS_HIGHMEM
1486 select MIPS_CPU_SCACHE
1487 select SYS_SUPPORTS_SMP
1488 select SYS_SUPPORTS_HOTPLUG_CPU
1490 Broadcom BMIPS5000 processors.
1493 bool "Netlogic XLR SoC"
1494 depends on SYS_HAS_CPU_XLR
1495 select CPU_SUPPORTS_32BIT_KERNEL
1496 select CPU_SUPPORTS_64BIT_KERNEL
1497 select CPU_SUPPORTS_HIGHMEM
1498 select CPU_SUPPORTS_HUGEPAGES
1499 select WEAK_ORDERING
1500 select WEAK_REORDERING_BEYOND_LLSC
1502 Netlogic Microsystems XLR/XLS processors.
1505 bool "Netlogic XLP SoC"
1506 depends on SYS_HAS_CPU_XLP
1507 select CPU_SUPPORTS_32BIT_KERNEL
1508 select CPU_SUPPORTS_64BIT_KERNEL
1509 select CPU_SUPPORTS_HIGHMEM
1511 select WEAK_ORDERING
1512 select WEAK_REORDERING_BEYOND_LLSC
1513 select CPU_HAS_PREFETCH
1516 Netlogic Microsystems XLP processors.
1520 config CPU_NOP_WORKAROUNDS
1523 config CPU_JUMP_WORKAROUNDS
1526 config CPU_LOONGSON2F_WORKAROUNDS
1527 bool "Loongson 2F Workarounds"
1529 select CPU_NOP_WORKAROUNDS
1530 select CPU_JUMP_WORKAROUNDS
1532 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1533 require workarounds. Without workarounds the system may hang
1534 unexpectedly. For more information please refer to the gas
1535 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1537 Loongson 2F03 and later have fixed these issues and no workarounds
1538 are needed. The workarounds have no significant side effect on them
1539 but may decrease the performance of the system so this option should
1540 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1543 If unsure, please say Y.
1544 endif # CPU_LOONGSON2F
1546 config SYS_SUPPORTS_ZBOOT
1548 select HAVE_KERNEL_GZIP
1549 select HAVE_KERNEL_BZIP2
1550 select HAVE_KERNEL_LZMA
1551 select HAVE_KERNEL_LZO
1553 config SYS_SUPPORTS_ZBOOT_UART16550
1555 select SYS_SUPPORTS_ZBOOT
1557 config CPU_LOONGSON2
1559 select CPU_SUPPORTS_32BIT_KERNEL
1560 select CPU_SUPPORTS_64BIT_KERNEL
1561 select CPU_SUPPORTS_HIGHMEM
1562 select CPU_SUPPORTS_HUGEPAGES
1564 config CPU_LOONGSON1
1568 select CPU_HAS_PREFETCH
1569 select CPU_SUPPORTS_32BIT_KERNEL
1570 select CPU_SUPPORTS_HIGHMEM
1575 select CPU_SUPPORTS_32BIT_KERNEL
1576 select DMA_NONCOHERENT
1578 select SWAP_IO_SPACE
1579 select WEAK_ORDERING
1581 config SYS_HAS_CPU_LOONGSON2E
1584 config SYS_HAS_CPU_LOONGSON2F
1586 select CPU_SUPPORTS_CPUFREQ
1587 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1588 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1590 config SYS_HAS_CPU_LOONGSON1B
1593 config SYS_HAS_CPU_MIPS32_R1
1596 config SYS_HAS_CPU_MIPS32_R2
1599 config SYS_HAS_CPU_MIPS64_R1
1602 config SYS_HAS_CPU_MIPS64_R2
1605 config SYS_HAS_CPU_R3000
1608 config SYS_HAS_CPU_TX39XX
1611 config SYS_HAS_CPU_VR41XX
1614 config SYS_HAS_CPU_R4300
1617 config SYS_HAS_CPU_R4X00
1620 config SYS_HAS_CPU_TX49XX
1623 config SYS_HAS_CPU_R5000
1626 config SYS_HAS_CPU_R5432
1629 config SYS_HAS_CPU_R5500
1632 config SYS_HAS_CPU_R6000
1635 config SYS_HAS_CPU_NEVADA
1638 config SYS_HAS_CPU_R8000
1641 config SYS_HAS_CPU_R10000
1644 config SYS_HAS_CPU_RM7000
1647 config SYS_HAS_CPU_SB1
1650 config SYS_HAS_CPU_CAVIUM_OCTEON
1653 config SYS_HAS_CPU_BMIPS3300
1656 config SYS_HAS_CPU_BMIPS4350
1659 config SYS_HAS_CPU_BMIPS4380
1662 config SYS_HAS_CPU_BMIPS5000
1665 config SYS_HAS_CPU_XLR
1668 config SYS_HAS_CPU_XLP
1672 # CPU may reorder R->R, R->W, W->R, W->W
1673 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1675 config WEAK_ORDERING
1679 # CPU may reorder reads and writes beyond LL/SC
1680 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1682 config WEAK_REORDERING_BEYOND_LLSC
1687 # These two indicate any level of the MIPS32 and MIPS64 architecture
1691 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1695 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1698 # These two indicate the revision of the architecture, either Release 1 or Release 2
1702 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1706 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1708 config SYS_SUPPORTS_32BIT_KERNEL
1710 config SYS_SUPPORTS_64BIT_KERNEL
1712 config CPU_SUPPORTS_32BIT_KERNEL
1714 config CPU_SUPPORTS_64BIT_KERNEL
1716 config CPU_SUPPORTS_CPUFREQ
1718 config CPU_SUPPORTS_ADDRWINCFG
1720 config CPU_SUPPORTS_HUGEPAGES
1722 config CPU_SUPPORTS_UNCACHED_ACCELERATED
1724 config MIPS_PGD_C0_CONTEXT
1726 default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
1729 # Set to y for ptrace access to watch registers.
1731 config HARDWARE_WATCHPOINTS
1733 default y if CPU_MIPSR1 || CPU_MIPSR2
1738 prompt "Kernel code model"
1740 You should only select this option if you have a workload that
1741 actually benefits from 64-bit processing or if your machine has
1742 large memory. You will only be presented a single option in this
1743 menu if your system does not support both 32-bit and 64-bit kernels.
1746 bool "32-bit kernel"
1747 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1750 Select this option if you want to build a 32-bit kernel.
1752 bool "64-bit kernel"
1753 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1754 select HAVE_SYSCALL_WRAPPERS
1756 Select this option if you want to build a 64-bit kernel.
1761 prompt "Kernel page size"
1762 default PAGE_SIZE_4KB
1764 config PAGE_SIZE_4KB
1766 depends on !CPU_LOONGSON2
1768 This option select the standard 4kB Linux page size. On some
1769 R3000-family processors this is the only available page size. Using
1770 4kB page size will minimize memory consumption and is therefore
1771 recommended for low memory systems.
1773 config PAGE_SIZE_8KB
1775 depends on (EXPERIMENTAL && CPU_R8000) || CPU_CAVIUM_OCTEON
1777 Using 8kB page size will result in higher performance kernel at
1778 the price of higher memory consumption. This option is available
1779 only on R8000 and cnMIPS processors. Note that you will need a
1780 suitable Linux distribution to support this.
1782 config PAGE_SIZE_16KB
1784 depends on !CPU_R3000 && !CPU_TX39XX
1786 Using 16kB page size will result in higher performance kernel at
1787 the price of higher memory consumption. This option is available on
1788 all non-R3000 family processors. Note that you will need a suitable
1789 Linux distribution to support this.
1791 config PAGE_SIZE_32KB
1793 depends on CPU_CAVIUM_OCTEON
1795 Using 32kB page size will result in higher performance kernel at
1796 the price of higher memory consumption. This option is available
1797 only on cnMIPS cores. Note that you will need a suitable Linux
1798 distribution to support this.
1800 config PAGE_SIZE_64KB
1802 depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
1804 Using 64kB page size will result in higher performance kernel at
1805 the price of higher memory consumption. This option is available on
1806 all non-R3000 family processor. Not that at the time of this
1807 writing this option is still high experimental.
1811 config FORCE_MAX_ZONEORDER
1812 int "Maximum zone order"
1813 range 14 64 if HUGETLB_PAGE && PAGE_SIZE_64KB
1814 default "14" if HUGETLB_PAGE && PAGE_SIZE_64KB
1815 range 13 64 if HUGETLB_PAGE && PAGE_SIZE_32KB
1816 default "13" if HUGETLB_PAGE && PAGE_SIZE_32KB
1817 range 12 64 if HUGETLB_PAGE && PAGE_SIZE_16KB
1818 default "12" if HUGETLB_PAGE && PAGE_SIZE_16KB
1822 The kernel memory allocator divides physically contiguous memory
1823 blocks into "zones", where each zone is a power of two number of
1824 pages. This option selects the largest power of two that the kernel
1825 keeps in the memory allocator. If you need to allocate very large
1826 blocks of physically contiguous memory, then you may need to
1827 increase this value.
1829 This config option is actually maximum order plus one. For example,
1830 a value of 11 means that the largest free memory block is 2^10 pages.
1832 The page size is not necessarily 4KB. Keep this in mind
1833 when choosing a value for this option.
1838 config IP22_CPU_SCACHE
1843 # Support for a MIPS32 / MIPS64 style S-caches
1845 config MIPS_CPU_SCACHE
1849 config R5000_CPU_SCACHE
1853 config RM7000_CPU_SCACHE
1857 config SIBYTE_DMA_PAGEOPS
1858 bool "Use DMA to clear/copy pages"
1861 Instead of using the CPU to zero and copy pages, use a Data Mover
1862 channel. These DMA channels are otherwise unused by the standard
1863 SiByte Linux port. Seems to give a small performance benefit.
1865 config CPU_HAS_PREFETCH
1868 config CPU_GENERIC_DUMP_TLB
1870 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
1874 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1876 config CPU_R4K_CACHE_TLB
1878 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1881 prompt "MIPS MT options"
1883 config MIPS_MT_DISABLED
1884 bool "Disable multithreading support."
1886 Use this option if your workload can't take advantage of
1887 MIPS hardware multithreading support. On systems that don't have
1888 the option of an MT-enabled processor this option will be the only
1889 option in this menu.
1892 bool "Use 1 TC on each available VPE for SMP"
1893 depends on SYS_SUPPORTS_MULTITHREADING
1894 select CPU_MIPSR2_IRQ_VI
1895 select CPU_MIPSR2_IRQ_EI
1897 select NR_CPUS_DEFAULT_2
1899 select SYS_SUPPORTS_SCHED_SMT if SMP
1900 select SYS_SUPPORTS_SMP
1902 select MIPS_PERF_SHARED_TC_COUNTERS
1904 This is a kernel model which is known a VSMP but lately has been
1905 marketesed into SMVP.
1906 Virtual SMP uses the processor's VPEs to implement virtual
1907 processors. In currently available configuration of the 34K processor
1908 this allows for a dual processor. Both processors will share the same
1909 primary caches; each will obtain the half of the TLB for it's own
1910 exclusive use. For a layman this model can be described as similar to
1911 what Intel calls Hyperthreading.
1913 For further information see http://www.linux-mips.org/wiki/34K#VSMP
1916 bool "SMTC: Use all TCs on all VPEs for SMP"
1917 depends on CPU_MIPS32_R2
1918 #depends on CPU_MIPS64_R2 # once there is hardware ...
1919 depends on SYS_SUPPORTS_MULTITHREADING
1920 select CPU_MIPSR2_IRQ_VI
1921 select CPU_MIPSR2_IRQ_EI
1923 select NR_CPUS_DEFAULT_8
1925 select SYS_SUPPORTS_SMP
1928 This is a kernel model which is known a SMTC or lately has been
1929 marketesed into SMVP.
1930 is presenting the available TC's of the core as processors to Linux.
1931 On currently available 34K processors this means a Linux system will
1932 see up to 5 processors. The implementation of the SMTC kernel differs
1933 significantly from VSMP and cannot efficiently coexist in the same
1934 kernel binary so the choice between VSMP and SMTC is a compile time
1937 For further information see http://www.linux-mips.org/wiki/34K#SMTC
1945 bool "SMT (multithreading) scheduler support"
1946 depends on SYS_SUPPORTS_SCHED_SMT
1949 SMT scheduler support improves the CPU scheduler's decision making
1950 when dealing with MIPS MT enabled cores at a cost of slightly
1951 increased overhead in some places. If unsure say N here.
1953 config SYS_SUPPORTS_SCHED_SMT
1956 config SYS_SUPPORTS_MULTITHREADING
1959 config MIPS_MT_FPAFF
1960 bool "Dynamic FPU affinity for FP-intensive threads"
1962 depends on MIPS_MT_SMP || MIPS_MT_SMTC
1964 config MIPS_VPE_LOADER
1965 bool "VPE loader support."
1966 depends on SYS_SUPPORTS_MULTITHREADING
1967 select CPU_MIPSR2_IRQ_VI
1968 select CPU_MIPSR2_IRQ_EI
1971 Includes a loader for loading an elf relocatable object
1972 onto another VPE and running it.
1974 config MIPS_MT_SMTC_IM_BACKSTOP
1975 bool "Use per-TC register bits as backstop for inhibited IM bits"
1976 depends on MIPS_MT_SMTC
1979 To support multiple TC microthreads acting as "CPUs" within
1980 a VPE, VPE-wide interrupt mask bits must be specially manipulated
1981 during interrupt handling. To support legacy drivers and interrupt
1982 controller management code, SMTC has a "backstop" to track and
1983 if necessary restore the interrupt mask. This has some performance
1984 impact on interrupt service overhead.
1986 config MIPS_MT_SMTC_IRQAFF
1987 bool "Support IRQ affinity API"
1988 depends on MIPS_MT_SMTC
1991 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
1992 for SMTC Linux kernel. Requires platform support, of which
1993 an example can be found in the MIPS kernel i8259 and Malta
1994 platform code. Adds some overhead to interrupt dispatch, and
1995 should be used only if you know what you are doing.
1997 config MIPS_VPE_LOADER_TOM
1998 bool "Load VPE program into memory hidden from linux"
1999 depends on MIPS_VPE_LOADER
2002 The loader can use memory that is present but has been hidden from
2003 Linux using the kernel command line option "mem=xxMB". It's up to
2004 you to ensure the amount you put in the option and the space your
2005 program requires is less or equal to the amount physically present.
2007 # this should possibly be in drivers/char, but it is rather cpu related. Hmmm
2008 config MIPS_VPE_APSP_API
2009 bool "Enable support for AP/SP API (RTLX)"
2010 depends on MIPS_VPE_LOADER
2014 bool "MIPS CMP framework support"
2015 depends on SYS_SUPPORTS_MIPS_CMP
2017 select SYS_SUPPORTS_SMP
2018 select SYS_SUPPORTS_SCHED_SMT if SMP
2019 select WEAK_ORDERING
2022 This is a placeholder option for the GCMP work. It will need to
2023 be handled differently...
2025 config SB1_PASS_1_WORKAROUNDS
2027 depends on CPU_SB1_PASS_1
2030 config SB1_PASS_2_WORKAROUNDS
2032 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2035 config SB1_PASS_2_1_WORKAROUNDS
2037 depends on CPU_SB1 && CPU_SB1_PASS_2
2040 config 64BIT_PHYS_ADDR
2043 config ARCH_PHYS_ADDR_T_64BIT
2044 def_bool 64BIT_PHYS_ADDR
2046 config CPU_HAS_SMARTMIPS
2047 depends on SYS_SUPPORTS_SMARTMIPS
2048 bool "Support for the SmartMIPS ASE"
2050 SmartMIPS is a extension of the MIPS32 architecture aimed at
2051 increased security at both hardware and software level for
2052 smartcards. Enabling this option will allow proper use of the
2053 SmartMIPS instructions by Linux applications. However a kernel with
2054 this option will not work on a MIPS core without SmartMIPS core. If
2055 you don't know you probably don't have SmartMIPS and should say N
2065 # Vectored interrupt mode is an R2 feature
2067 config CPU_MIPSR2_IRQ_VI
2071 # Extended interrupt mode is an R2 feature
2073 config CPU_MIPSR2_IRQ_EI
2078 depends on !CPU_R3000
2084 config CPU_DADDI_WORKAROUNDS
2087 config CPU_R4000_WORKAROUNDS
2089 select CPU_R4400_WORKAROUNDS
2091 config CPU_R4400_WORKAROUNDS
2095 # - Highmem only makes sense for the 32-bit kernel.
2096 # - The current highmem code will only work properly on physically indexed
2097 # caches such as R3000, SB1, R7000 or those that look like they're virtually
2098 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2099 # moment we protect the user and offer the highmem option only on machines
2100 # where it's known to be safe. This will not offer highmem on a few systems
2101 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2102 # indexed CPUs but we're playing safe.
2103 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2104 # know they might have memory configurations that could make use of highmem
2108 bool "High Memory Support"
2109 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
2111 config CPU_SUPPORTS_HIGHMEM
2114 config SYS_SUPPORTS_HIGHMEM
2117 config SYS_SUPPORTS_SMARTMIPS
2120 config ARCH_FLATMEM_ENABLE
2122 depends on !NUMA && !CPU_LOONGSON2
2124 config ARCH_DISCONTIGMEM_ENABLE
2126 default y if SGI_IP27
2128 Say Y to support efficient handling of discontiguous physical memory,
2129 for architectures which are either NUMA (Non-Uniform Memory Access)
2130 or have huge holes in the physical address space for other reasons.
2131 See <file:Documentation/vm/numa> for more.
2133 config ARCH_SPARSEMEM_ENABLE
2135 select SPARSEMEM_STATIC
2139 depends on SYS_SUPPORTS_NUMA
2141 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2142 Access). This option improves performance on systems with more
2143 than two nodes; on two node systems it is generally better to
2144 leave it disabled; on single node systems disable this option
2147 config SYS_SUPPORTS_NUMA
2153 depends on NEED_MULTIPLE_NODES
2155 config HW_PERF_EVENTS
2156 bool "Enable hardware performance counter support for perf events"
2157 depends on PERF_EVENTS && !MIPS_MT_SMTC && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP)
2160 Enable hardware performance counter support for perf events. If
2161 disabled, perf events will use software events only.
2166 bool "Multi-Processing support"
2167 depends on SYS_SUPPORTS_SMP
2169 select USE_GENERIC_SMP_HELPERS
2171 This enables support for systems with more than one CPU. If you have
2172 a system with only one CPU, like most personal computers, say N. If
2173 you have a system with more than one CPU, say Y.
2175 If you say N here, the kernel will run on single and multiprocessor
2176 machines, but will use only one CPU of a multiprocessor machine. If
2177 you say Y here, the kernel will run on many, but not all,
2178 singleprocessor machines. On a singleprocessor machine, the kernel
2179 will run faster if you say N here.
2181 People using multiprocessor machines who say Y here should also say
2182 Y to "Enhanced Real Time Clock Support", below.
2184 See also the SMP-HOWTO available at
2185 <http://www.tldp.org/docs.html#howto>.
2187 If you don't know what to do here, say N.
2192 config SYS_SUPPORTS_MIPS_CMP
2195 config SYS_SUPPORTS_SMP
2198 config NR_CPUS_DEFAULT_1
2201 config NR_CPUS_DEFAULT_2
2204 config NR_CPUS_DEFAULT_4
2207 config NR_CPUS_DEFAULT_8
2210 config NR_CPUS_DEFAULT_16
2213 config NR_CPUS_DEFAULT_32
2216 config NR_CPUS_DEFAULT_64
2220 int "Maximum number of CPUs (2-64)"
2221 range 1 64 if NR_CPUS_DEFAULT_1
2223 default "1" if NR_CPUS_DEFAULT_1
2224 default "2" if NR_CPUS_DEFAULT_2
2225 default "4" if NR_CPUS_DEFAULT_4
2226 default "8" if NR_CPUS_DEFAULT_8
2227 default "16" if NR_CPUS_DEFAULT_16
2228 default "32" if NR_CPUS_DEFAULT_32
2229 default "64" if NR_CPUS_DEFAULT_64
2231 This allows you to specify the maximum number of CPUs which this
2232 kernel will support. The maximum supported value is 32 for 32-bit
2233 kernel and 64 for 64-bit kernels; the minimum value which makes
2234 sense is 1 for Qemu (useful only for kernel debugging purposes)
2235 and 2 for all others.
2237 This is purely to save memory - each supported CPU adds
2238 approximately eight kilobytes to the kernel image. For best
2239 performance should round up your number of processors to the next
2242 config MIPS_PERF_SHARED_TC_COUNTERS
2246 # Timer Interrupt Frequency Configuration
2250 prompt "Timer frequency"
2253 Allows the configuration of the timer frequency.
2256 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2259 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2262 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2265 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2268 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2271 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2274 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2278 config SYS_SUPPORTS_48HZ
2281 config SYS_SUPPORTS_100HZ
2284 config SYS_SUPPORTS_128HZ
2287 config SYS_SUPPORTS_250HZ
2290 config SYS_SUPPORTS_256HZ
2293 config SYS_SUPPORTS_1000HZ
2296 config SYS_SUPPORTS_1024HZ
2299 config SYS_SUPPORTS_ARBIT_HZ
2301 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2302 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2303 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2304 !SYS_SUPPORTS_1024HZ
2309 default 100 if HZ_100
2310 default 128 if HZ_128
2311 default 250 if HZ_250
2312 default 256 if HZ_256
2313 default 1000 if HZ_1000
2314 default 1024 if HZ_1024
2316 source "kernel/Kconfig.preempt"
2319 bool "Kexec system call (EXPERIMENTAL)"
2320 depends on EXPERIMENTAL
2322 kexec is a system call that implements the ability to shutdown your
2323 current kernel, and to start another kernel. It is like a reboot
2324 but it is independent of the system firmware. And like a reboot
2325 you can start any kernel with it, not just Linux.
2327 The name comes from the similarity to the exec system call.
2329 It is an ongoing process to be certain the hardware in a machine
2330 is properly shutdown, so do not be surprised if this code does not
2331 initially work for you. It may help to enable device hotplugging
2332 support. As of this writing the exact hardware interface is
2333 strongly in flux, so no good recommendation can be made.
2336 bool "Kernel crash dumps"
2338 Generate crash dump after being started by kexec.
2339 This should be normally only set in special crash dump kernels
2340 which are loaded in the main kernel with kexec-tools into
2341 a specially reserved region and then later executed after
2342 a crash by kdump/kexec. The crash dump kernel must be compiled
2343 to a memory address not used by the main kernel or firmware using
2346 config PHYSICAL_START
2347 hex "Physical address where the kernel is loaded"
2348 default "0xffffffff84000000" if 64BIT
2349 default "0x84000000" if 32BIT
2350 depends on CRASH_DUMP
2352 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2353 If you plan to use kernel for capturing the crash dump change
2354 this value to start of the reserved region (the "X" value as
2355 specified in the "crashkernel=YM@XM" command line boot parameter
2356 passed to the panic-ed kernel).
2359 bool "Enable seccomp to safely compute untrusted bytecode"
2363 This kernel feature is useful for number crunching applications
2364 that may need to compute untrusted bytecode during their
2365 execution. By using pipes or other transports made available to
2366 the process as file descriptors supporting the read/write
2367 syscalls, it's possible to isolate those applications in
2368 their own address space using seccomp. Once seccomp is
2369 enabled via /proc/<pid>/seccomp, it cannot be disabled
2370 and the task is only allowed to execute a few safe syscalls
2371 defined by each seccomp mode.
2373 If unsure, say Y. Only embedded should say N here.
2378 select OF_EARLY_FLATTREE
2383 config LOCKDEP_SUPPORT
2387 config STACKTRACE_SUPPORT
2391 source "init/Kconfig"
2393 source "kernel/Kconfig.freezer"
2395 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2403 bool "Support for PCI controller"
2404 depends on HW_HAS_PCI
2406 select GENERIC_PCI_IOMAP
2407 select NO_GENERIC_PCI_IOPORT_MAP
2409 Find out whether you have a PCI motherboard. PCI is the name of a
2410 bus system, i.e. the way the CPU talks to the other stuff inside
2411 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2417 source "drivers/pci/Kconfig"
2419 source "drivers/pci/pcie/Kconfig"
2422 # ISA support is now enabled via select. Too many systems still have the one
2423 # or other ISA chip on the board that users don't know about so don't expect
2424 # users to choose the right thing ...
2431 depends on HW_HAS_EISA
2433 select GENERIC_ISA_DMA
2435 The Extended Industry Standard Architecture (EISA) bus was
2436 developed as an open alternative to the IBM MicroChannel bus.
2438 The EISA bus provided some of the features of the IBM MicroChannel
2439 bus while maintaining backward compatibility with cards made for
2440 the older ISA bus. The EISA bus saw limited use between 1988 and
2441 1995 when it was made obsolete by the PCI bus.
2443 Say Y here if you are building a kernel for an EISA-based machine.
2447 source "drivers/eisa/Kconfig"
2450 bool "TURBOchannel support"
2451 depends on MACH_DECSTATION
2453 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2454 processors. TURBOchannel programming specifications are available
2456 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2458 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2459 Linux driver support status is documented at:
2460 <http://www.linux-mips.org/wiki/DECstation>
2470 select MIPS_EXTERNAL_TIMER
2475 source "drivers/pcmcia/Kconfig"
2477 source "drivers/pci/hotplug/Kconfig"
2480 bool "RapidIO support"
2484 If you say Y here, the kernel will include drivers and
2485 infrastructure code to support RapidIO interconnect devices.
2487 source "drivers/rapidio/Kconfig"
2491 menu "Executable file formats"
2493 source "fs/Kconfig.binfmt"
2498 config MIPS32_COMPAT
2499 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2502 Select this option if you want Linux/MIPS 32-bit binary
2503 compatibility. Since all software available for Linux/MIPS is
2504 currently 32-bit you should say Y here.
2508 depends on MIPS32_COMPAT
2509 select ARCH_WANT_OLD_COMPAT_IPC
2512 config SYSVIPC_COMPAT
2514 depends on COMPAT && SYSVIPC
2518 bool "Kernel support for o32 binaries"
2519 depends on MIPS32_COMPAT
2521 Select this option if you want to run o32 binaries. These are pure
2522 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2523 existing binaries are in this format.
2528 bool "Kernel support for n32 binaries"
2529 depends on MIPS32_COMPAT
2531 Select this option if you want to run n32 binaries. These are
2532 64-bit binaries using 32-bit quantities for addressing and certain
2533 data that would normally be 64-bit. They are used in special
2540 default y if MIPS32_O32 || MIPS32_N32
2544 menu "Power management options"
2546 config ARCH_HIBERNATION_POSSIBLE
2548 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2550 config ARCH_SUSPEND_POSSIBLE
2552 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2554 source "kernel/power/Kconfig"
2558 source "arch/mips/kernel/cpufreq/Kconfig"
2560 source "net/Kconfig"
2562 source "drivers/Kconfig"
2564 source "drivers/firmware/Kconfig"
2568 source "arch/mips/Kconfig.debug"
2570 source "security/Kconfig"
2572 source "crypto/Kconfig"
2574 source "lib/Kconfig"