4 select ARCH_MIGHT_HAVE_PC_PARPORT
5 select ARCH_MIGHT_HAVE_PC_SERIO
6 select HAVE_CONTEXT_TRACKING
7 select HAVE_GENERIC_DMA_COHERENT
10 select HAVE_PERF_EVENTS
11 select PERF_USE_VMALLOC
13 select HAVE_ARCH_SECCOMP_FILTER
14 select HAVE_ARCH_TRACEHOOK
15 select HAVE_BPF_JIT if !CPU_MICROMIPS
16 select ARCH_HAVE_CUSTOM_GPIO_H
17 select HAVE_FUNCTION_TRACER
18 select HAVE_DYNAMIC_FTRACE
19 select HAVE_FTRACE_MCOUNT_RECORD
20 select HAVE_C_RECORDMCOUNT
21 select HAVE_FUNCTION_GRAPH_TRACER
23 select HAVE_KRETPROBES
24 select HAVE_DEBUG_KMEMLEAK
25 select HAVE_SYSCALL_TRACEPOINTS
26 select ARCH_BINFMT_ELF_RANDOMIZE_PIE
27 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT
28 select RTC_LIB if !MACH_LOONGSON
29 select GENERIC_ATOMIC64 if !64BIT
30 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
32 select HAVE_DMA_CONTIGUOUS
33 select HAVE_DMA_API_DEBUG
34 select GENERIC_IRQ_PROBE
35 select GENERIC_IRQ_SHOW
36 select GENERIC_PCI_IOMAP
37 select HAVE_ARCH_JUMP_LABEL
38 select ARCH_WANT_IPC_PARSE_VERSION
39 select IRQ_FORCED_THREADING
41 select HAVE_MEMBLOCK_NODE_MAP
42 select ARCH_DISCARD_MEMBLOCK
43 select GENERIC_SMP_IDLE_THREAD
44 select BUILDTIME_EXTABLE_SORT
45 select GENERIC_CLOCKEVENTS
46 select GENERIC_CMOS_UPDATE
47 select HAVE_MOD_ARCH_SPECIFIC
49 select MODULES_USE_ELF_REL if MODULES
50 select MODULES_USE_ELF_RELA if MODULES && 64BIT
51 select CLONE_BACKWARDS
52 select HAVE_DEBUG_STACKOVERFLOW
53 select HAVE_CC_STACKPROTECTOR
54 select CPU_PM if CPU_IDLE
55 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
56 select ARCH_BINFMT_ELF_STATE
57 select SYSCTL_EXCEPTION_TRACE
59 menu "Machine selection"
66 bool "Alchemy processor based machines"
67 select ARCH_PHYS_ADDR_T_64BIT
71 select DMA_MAYBE_COHERENT # Au1000,1500,1100 aren't, rest is
72 select SYS_HAS_CPU_MIPS32_R1
73 select SYS_SUPPORTS_32BIT_KERNEL
74 select SYS_SUPPORTS_APM_EMULATION
75 select ARCH_REQUIRE_GPIOLIB
76 select SYS_SUPPORTS_ZBOOT
80 bool "Texas Instruments AR7"
82 select DMA_NONCOHERENT
88 select SYS_HAS_CPU_MIPS32_R1
89 select SYS_HAS_EARLY_PRINTK
90 select SYS_SUPPORTS_32BIT_KERNEL
91 select SYS_SUPPORTS_LITTLE_ENDIAN
92 select SYS_SUPPORTS_MIPS16
93 select SYS_SUPPORTS_ZBOOT_UART16550
94 select ARCH_REQUIRE_GPIOLIB
98 Support for the Texas Instruments AR7 System-on-a-Chip
99 family: TNETD7100, 7200 and 7300.
102 bool "Atheros AR231x/AR531x SoC support"
105 select DMA_NONCOHERENT
108 select SYS_HAS_CPU_MIPS32_R1
109 select SYS_SUPPORTS_BIG_ENDIAN
110 select SYS_SUPPORTS_32BIT_KERNEL
111 select SYS_HAS_EARLY_PRINTK
113 Support for Atheros AR231x and Atheros AR531x based boards
116 bool "Atheros AR71XX/AR724X/AR913X based boards"
117 select ARCH_REQUIRE_GPIOLIB
121 select DMA_NONCOHERENT
126 select SYS_HAS_CPU_MIPS32_R2
127 select SYS_HAS_EARLY_PRINTK
128 select SYS_SUPPORTS_32BIT_KERNEL
129 select SYS_SUPPORTS_BIG_ENDIAN
130 select SYS_SUPPORTS_MIPS16
132 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
135 bool "Broadcom BCM3384 based boards"
137 select NO_EXCEPT_FILL
143 select DMA_NONCOHERENT
145 select SYS_SUPPORTS_32BIT_KERNEL
146 select SYS_SUPPORTS_BIG_ENDIAN
147 select SYS_SUPPORTS_HIGHMEM
148 select SYS_HAS_CPU_BMIPS5000
150 select USB_EHCI_BIG_ENDIAN_DESC
151 select USB_EHCI_BIG_ENDIAN_MMIO
152 select USB_OHCI_BIG_ENDIAN_DESC
153 select USB_OHCI_BIG_ENDIAN_MMIO
155 Support for BCM3384 based boards. BCM3384/BCM33843 is a cable modem
156 chipset with a Linux application processor that is often used to
157 provide Samba services, a CUPS print server, and/or advanced routing
161 bool "Broadcom BCM47XX based boards"
162 select ARCH_WANT_OPTIONAL_GPIOLIB
166 select DMA_NONCOHERENT
169 select SYS_HAS_CPU_MIPS32_R1
170 select NO_EXCEPT_FILL
171 select SYS_SUPPORTS_32BIT_KERNEL
172 select SYS_SUPPORTS_LITTLE_ENDIAN
173 select SYS_SUPPORTS_MIPS16
174 select SYS_HAS_EARLY_PRINTK
175 select USE_GENERIC_EARLY_PRINTK_8250
177 select LEDS_GPIO_REGISTER
179 Support for BCM47XX based boards
182 bool "Broadcom BCM63XX based boards"
187 select DMA_NONCOHERENT
189 select SYS_SUPPORTS_32BIT_KERNEL
190 select SYS_SUPPORTS_BIG_ENDIAN
191 select SYS_HAS_EARLY_PRINTK
193 select ARCH_REQUIRE_GPIOLIB
195 select MIPS_L1_CACHE_SHIFT_4
197 Support for BCM63XX based boards
204 select DMA_NONCOHERENT
210 select PCI_GT64XXX_PCI0
212 select SYS_HAS_CPU_NEVADA
213 select SYS_HAS_EARLY_PRINTK
214 select SYS_SUPPORTS_32BIT_KERNEL
215 select SYS_SUPPORTS_64BIT_KERNEL
216 select SYS_SUPPORTS_LITTLE_ENDIAN
217 select USE_GENERIC_EARLY_PRINTK_8250
219 config MACH_DECSTATION
223 select CEVT_R4K if CPU_R4X00
225 select CSRC_R4K if CPU_R4X00
226 select CPU_DADDI_WORKAROUNDS if 64BIT
227 select CPU_R4000_WORKAROUNDS if 64BIT
228 select CPU_R4400_WORKAROUNDS if 64BIT
229 select DMA_NONCOHERENT
232 select SYS_HAS_CPU_R3000
233 select SYS_HAS_CPU_R4X00
234 select SYS_SUPPORTS_32BIT_KERNEL
235 select SYS_SUPPORTS_64BIT_KERNEL
236 select SYS_SUPPORTS_LITTLE_ENDIAN
237 select SYS_SUPPORTS_128HZ
238 select SYS_SUPPORTS_256HZ
239 select SYS_SUPPORTS_1024HZ
240 select MIPS_L1_CACHE_SHIFT_4
242 This enables support for DEC's MIPS based workstations. For details
243 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
244 DECstation porting pages on <http://decstation.unix-ag.org/>.
246 If you have one of the following DECstation Models you definitely
247 want to choose R4xx0 for the CPU Type:
254 otherwise choose R3000.
257 bool "Jazz family of machines"
260 select ARCH_MAY_HAVE_PC_FDC
263 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
264 select GENERIC_ISA_DMA
265 select HAVE_PCSPKR_PLATFORM
270 select SYS_HAS_CPU_R4X00
271 select SYS_SUPPORTS_32BIT_KERNEL
272 select SYS_SUPPORTS_64BIT_KERNEL
273 select SYS_SUPPORTS_100HZ
275 This a family of machines based on the MIPS R4030 chipset which was
276 used by several vendors to build RISC/os and Windows NT workstations.
277 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
278 Olivetti M700-10 workstations.
281 bool "Ingenic JZ4740 based machines"
282 select SYS_HAS_CPU_MIPS32_R1
283 select SYS_SUPPORTS_32BIT_KERNEL
284 select SYS_SUPPORTS_LITTLE_ENDIAN
285 select SYS_SUPPORTS_ZBOOT_UART16550
286 select DMA_NONCOHERENT
288 select ARCH_REQUIRE_GPIOLIB
289 select SYS_HAS_EARLY_PRINTK
291 select GENERIC_IRQ_CHIP
294 bool "Lantiq based platforms"
295 select DMA_NONCOHERENT
299 select SYS_HAS_CPU_MIPS32_R1
300 select SYS_HAS_CPU_MIPS32_R2
301 select SYS_SUPPORTS_BIG_ENDIAN
302 select SYS_SUPPORTS_32BIT_KERNEL
303 select SYS_SUPPORTS_MIPS16
304 select SYS_SUPPORTS_MULTITHREADING
305 select SYS_HAS_EARLY_PRINTK
306 select ARCH_REQUIRE_GPIOLIB
309 select HAVE_MACH_CLKDEV
313 select PINCTRL_LANTIQ
314 select ARCH_HAS_RESET_CONTROLLER
315 select RESET_CONTROLLER
318 bool "LASAT Networks platforms"
322 select DMA_NONCOHERENT
323 select SYS_HAS_EARLY_PRINTK
326 select PCI_GT64XXX_PCI0
328 select R5000_CPU_SCACHE
329 select SYS_HAS_CPU_R5000
330 select SYS_SUPPORTS_32BIT_KERNEL
331 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
332 select SYS_SUPPORTS_LITTLE_ENDIAN
335 bool "Loongson family of machines"
336 select SYS_SUPPORTS_ZBOOT
338 This enables the support of Loongson family of machines.
340 Loongson is a family of general-purpose MIPS-compatible CPUs.
341 developed at Institute of Computing Technology (ICT),
342 Chinese Academy of Sciences (CAS) in the People's Republic
343 of China. The chief architect is Professor Weiwu Hu.
345 config MACH_LOONGSON1
346 bool "Loongson 1 family of machines"
347 select SYS_SUPPORTS_ZBOOT
349 This enables support for the Loongson 1 based machines.
351 Loongson 1 is a family of 32-bit MIPS-compatible SoCs developed by
352 the ICT (Institute of Computing Technology) and the Chinese Academy
356 bool "MIPS Malta board"
357 select ARCH_MAY_HAVE_PC_FDC
362 select CLKSRC_MIPS_GIC
363 select DMA_MAYBE_COHERENT
364 select GENERIC_ISA_DMA
365 select HAVE_PCSPKR_PLATFORM
372 select MIPS_CPU_SCACHE
373 select MIPS_L1_CACHE_SHIFT_6
374 select PCI_GT64XXX_PCI0
377 select SYS_HAS_CPU_MIPS32_R1
378 select SYS_HAS_CPU_MIPS32_R2
379 select SYS_HAS_CPU_MIPS32_R3_5
380 select SYS_HAS_CPU_MIPS64_R1
381 select SYS_HAS_CPU_MIPS64_R2
382 select SYS_HAS_CPU_NEVADA
383 select SYS_HAS_CPU_RM7000
384 select SYS_SUPPORTS_32BIT_KERNEL
385 select SYS_SUPPORTS_64BIT_KERNEL
386 select SYS_SUPPORTS_BIG_ENDIAN
387 select SYS_SUPPORTS_LITTLE_ENDIAN
388 select SYS_SUPPORTS_MICROMIPS
389 select SYS_SUPPORTS_MIPS_CMP
390 select SYS_SUPPORTS_MIPS_CPS
391 select SYS_SUPPORTS_MIPS16
392 select SYS_SUPPORTS_MULTITHREADING
393 select SYS_SUPPORTS_SMARTMIPS
394 select SYS_SUPPORTS_ZBOOT
396 This enables support for the MIPS Technologies Malta evaluation
400 bool "MIPS SEAD3 board"
406 select CLKSRC_MIPS_GIC
407 select CPU_MIPSR2_IRQ_VI
408 select CPU_MIPSR2_IRQ_EI
409 select DMA_NONCOHERENT
414 select SYS_HAS_CPU_MIPS32_R1
415 select SYS_HAS_CPU_MIPS32_R2
416 select SYS_HAS_CPU_MIPS64_R1
417 select SYS_HAS_EARLY_PRINTK
418 select SYS_SUPPORTS_32BIT_KERNEL
419 select SYS_SUPPORTS_64BIT_KERNEL
420 select SYS_SUPPORTS_BIG_ENDIAN
421 select SYS_SUPPORTS_LITTLE_ENDIAN
422 select SYS_SUPPORTS_SMARTMIPS
423 select SYS_SUPPORTS_MICROMIPS
424 select SYS_SUPPORTS_MIPS16
425 select USB_EHCI_BIG_ENDIAN_DESC
426 select USB_EHCI_BIG_ENDIAN_MMIO
429 This enables support for the MIPS Technologies SEAD3 evaluation
433 bool "NEC EMMA2RH Mark-eins board"
437 This enables support for the NEC Electronics Mark-eins boards.
440 bool "NEC VR4100 series based machines"
443 select SYS_HAS_CPU_VR41XX
444 select SYS_SUPPORTS_MIPS16
445 select ARCH_REQUIRE_GPIOLIB
448 bool "NXP STB220 board"
451 Support for NXP Semiconductors STB220 Development Board.
458 Support for NXP Semiconductors STB225 Development Board.
461 bool "PMC-Sierra MSP chipsets"
464 select DMA_NONCOHERENT
466 select NO_EXCEPT_FILL
468 select SYS_HAS_CPU_MIPS32_R1
469 select SYS_HAS_CPU_MIPS32_R2
470 select SYS_SUPPORTS_32BIT_KERNEL
471 select SYS_SUPPORTS_BIG_ENDIAN
472 select SYS_SUPPORTS_MIPS16
475 select SERIAL_8250_CONSOLE
476 select USB_EHCI_BIG_ENDIAN_MMIO
477 select USB_EHCI_BIG_ENDIAN_DESC
479 This adds support for the PMC-Sierra family of Multi-Service
480 Processor System-On-A-Chips. These parts include a number
481 of integrated peripherals, interfaces and DSPs in addition to
482 a variety of MIPS cores.
485 bool "Ralink based machines"
489 select DMA_NONCOHERENT
492 select SYS_HAS_CPU_MIPS32_R1
493 select SYS_HAS_CPU_MIPS32_R2
494 select SYS_SUPPORTS_32BIT_KERNEL
495 select SYS_SUPPORTS_LITTLE_ENDIAN
496 select SYS_SUPPORTS_MIPS16
497 select SYS_HAS_EARLY_PRINTK
498 select HAVE_MACH_CLKDEV
500 select ARCH_HAS_RESET_CONTROLLER
501 select RESET_CONTROLLER
504 bool "SGI IP22 (Indy/Indigo2)"
510 select DEFAULT_SGI_PARTITION
511 select DMA_NONCOHERENT
515 select IP22_CPU_SCACHE
517 select GENERIC_ISA_DMA_SUPPORT_BROKEN
519 select SGI_HAS_INDYDOG
525 select SYS_HAS_CPU_R4X00
526 select SYS_HAS_CPU_R5000
528 # Disable EARLY_PRINTK for now since it leads to overwritten prom
529 # memory during early boot on some machines.
531 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
532 # for a more details discussion
534 # select SYS_HAS_EARLY_PRINTK
535 select SYS_SUPPORTS_32BIT_KERNEL
536 select SYS_SUPPORTS_64BIT_KERNEL
537 select SYS_SUPPORTS_BIG_ENDIAN
538 select MIPS_L1_CACHE_SHIFT_7
540 This are the SGI Indy, Challenge S and Indigo2, as well as certain
541 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
542 that runs on these, say Y here.
545 bool "SGI IP27 (Origin200/2000)"
549 select DEFAULT_SGI_PARTITION
551 select SYS_HAS_EARLY_PRINTK
553 select NR_CPUS_DEFAULT_64
554 select SYS_HAS_CPU_R10000
555 select SYS_SUPPORTS_64BIT_KERNEL
556 select SYS_SUPPORTS_BIG_ENDIAN
557 select SYS_SUPPORTS_NUMA
558 select SYS_SUPPORTS_SMP
559 select MIPS_L1_CACHE_SHIFT_7
561 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
562 workstations. To compile a Linux kernel that runs on these, say Y
566 bool "SGI IP28 (Indigo2 R10k)"
572 select DEFAULT_SGI_PARTITION
573 select DMA_NONCOHERENT
574 select GENERIC_ISA_DMA_SUPPORT_BROKEN
580 select SGI_HAS_INDYDOG
586 select SYS_HAS_CPU_R10000
588 # Disable EARLY_PRINTK for now since it leads to overwritten prom
589 # memory during early boot on some machines.
591 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
592 # for a more details discussion
594 # select SYS_HAS_EARLY_PRINTK
595 select SYS_SUPPORTS_64BIT_KERNEL
596 select SYS_SUPPORTS_BIG_ENDIAN
597 select MIPS_L1_CACHE_SHIFT_7
599 This is the SGI Indigo2 with R10000 processor. To compile a Linux
600 kernel that runs on these, say Y here.
609 select DMA_NONCOHERENT
612 select R5000_CPU_SCACHE
613 select RM7000_CPU_SCACHE
614 select SYS_HAS_CPU_R5000
615 select SYS_HAS_CPU_R10000 if BROKEN
616 select SYS_HAS_CPU_RM7000
617 select SYS_HAS_CPU_NEVADA
618 select SYS_SUPPORTS_64BIT_KERNEL
619 select SYS_SUPPORTS_BIG_ENDIAN
621 If you want this kernel to run on SGI O2 workstation, say Y here.
624 bool "Sibyte BCM91120C-CRhine"
627 select SIBYTE_BCM1120
629 select SYS_HAS_CPU_SB1
630 select SYS_SUPPORTS_BIG_ENDIAN
631 select SYS_SUPPORTS_LITTLE_ENDIAN
634 bool "Sibyte BCM91120x-Carmel"
637 select SIBYTE_BCM1120
639 select SYS_HAS_CPU_SB1
640 select SYS_SUPPORTS_BIG_ENDIAN
641 select SYS_SUPPORTS_LITTLE_ENDIAN
644 bool "Sibyte BCM91125C-CRhone"
647 select SIBYTE_BCM1125
649 select SYS_HAS_CPU_SB1
650 select SYS_SUPPORTS_BIG_ENDIAN
651 select SYS_SUPPORTS_HIGHMEM
652 select SYS_SUPPORTS_LITTLE_ENDIAN
655 bool "Sibyte BCM91125E-Rhone"
658 select SIBYTE_BCM1125H
660 select SYS_HAS_CPU_SB1
661 select SYS_SUPPORTS_BIG_ENDIAN
662 select SYS_SUPPORTS_LITTLE_ENDIAN
665 bool "Sibyte BCM91250A-SWARM"
668 select HAVE_PATA_PLATFORM
671 select SYS_HAS_CPU_SB1
672 select SYS_SUPPORTS_BIG_ENDIAN
673 select SYS_SUPPORTS_HIGHMEM
674 select SYS_SUPPORTS_LITTLE_ENDIAN
675 select ZONE_DMA32 if 64BIT
677 config SIBYTE_LITTLESUR
678 bool "Sibyte BCM91250C2-LittleSur"
681 select HAVE_PATA_PLATFORM
684 select SYS_HAS_CPU_SB1
685 select SYS_SUPPORTS_BIG_ENDIAN
686 select SYS_SUPPORTS_HIGHMEM
687 select SYS_SUPPORTS_LITTLE_ENDIAN
689 config SIBYTE_SENTOSA
690 bool "Sibyte BCM91250E-Sentosa"
695 select SYS_HAS_CPU_SB1
696 select SYS_SUPPORTS_BIG_ENDIAN
697 select SYS_SUPPORTS_LITTLE_ENDIAN
700 bool "Sibyte BCM91480B-BigSur"
703 select NR_CPUS_DEFAULT_4
704 select SIBYTE_BCM1x80
706 select SYS_HAS_CPU_SB1
707 select SYS_SUPPORTS_BIG_ENDIAN
708 select SYS_SUPPORTS_HIGHMEM
709 select SYS_SUPPORTS_LITTLE_ENDIAN
710 select ZONE_DMA32 if 64BIT
713 bool "SNI RM200/300/400"
714 select FW_ARC if CPU_LITTLE_ENDIAN
715 select FW_ARC32 if CPU_LITTLE_ENDIAN
716 select FW_SNIPROM if CPU_BIG_ENDIAN
717 select ARCH_MAY_HAVE_PC_FDC
721 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
722 select DMA_NONCOHERENT
723 select GENERIC_ISA_DMA
724 select HAVE_PCSPKR_PLATFORM
731 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
732 select SYS_HAS_CPU_R4X00
733 select SYS_HAS_CPU_R5000
734 select SYS_HAS_CPU_R10000
735 select R5000_CPU_SCACHE
736 select SYS_HAS_EARLY_PRINTK
737 select SYS_SUPPORTS_32BIT_KERNEL
738 select SYS_SUPPORTS_64BIT_KERNEL
739 select SYS_SUPPORTS_BIG_ENDIAN
740 select SYS_SUPPORTS_HIGHMEM
741 select SYS_SUPPORTS_LITTLE_ENDIAN
743 The SNI RM200/300/400 are MIPS-based machines manufactured by
744 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
745 Technology and now in turn merged with Fujitsu. Say Y here to
746 support this machine type.
749 bool "Toshiba TX39 series based machines"
752 bool "Toshiba TX49 series based machines"
754 config MIKROTIK_RB532
755 bool "Mikrotik RB532 boards"
758 select DMA_NONCOHERENT
761 select SYS_HAS_CPU_MIPS32_R1
762 select SYS_SUPPORTS_32BIT_KERNEL
763 select SYS_SUPPORTS_LITTLE_ENDIAN
766 select ARCH_REQUIRE_GPIOLIB
767 select MIPS_L1_CACHE_SHIFT_4
769 Support the Mikrotik(tm) RouterBoard 532 series,
770 based on the IDT RC32434 SoC.
772 config CAVIUM_OCTEON_SOC
773 bool "Cavium Networks Octeon SoC based boards"
775 select ARCH_PHYS_ADDR_T_64BIT
777 select SYS_SUPPORTS_64BIT_KERNEL
778 select SYS_SUPPORTS_BIG_ENDIAN
780 select SYS_SUPPORTS_HOTPLUG_CPU
781 select SYS_HAS_EARLY_PRINTK
782 select SYS_HAS_CPU_CAVIUM_OCTEON
787 select ARCH_REQUIRE_GPIOLIB
790 select ARCH_SPARSEMEM_ENABLE
791 select SYS_SUPPORTS_SMP
792 select NR_CPUS_DEFAULT_16
795 This option supports all of the Octeon reference boards from Cavium
796 Networks. It builds a kernel that dynamically determines the Octeon
797 CPU type and supports all known board reference implementations.
798 Some of the supported boards are:
805 Say Y here for most Octeon reference boards.
808 bool "Netlogic XLR/XLS based systems"
811 select SYS_HAS_CPU_XLR
812 select SYS_SUPPORTS_SMP
815 select SYS_SUPPORTS_32BIT_KERNEL
816 select SYS_SUPPORTS_64BIT_KERNEL
817 select ARCH_PHYS_ADDR_T_64BIT
818 select SYS_SUPPORTS_BIG_ENDIAN
819 select SYS_SUPPORTS_HIGHMEM
821 select NR_CPUS_DEFAULT_32
825 select ZONE_DMA32 if 64BIT
827 select SYS_HAS_EARLY_PRINTK
828 select SYS_SUPPORTS_ZBOOT
829 select SYS_SUPPORTS_ZBOOT_UART16550
831 Support for systems based on Netlogic XLR and XLS processors.
832 Say Y here if you have a XLR or XLS based board.
835 bool "Netlogic XLP based systems"
838 select SYS_HAS_CPU_XLP
839 select SYS_SUPPORTS_SMP
841 select SYS_SUPPORTS_32BIT_KERNEL
842 select SYS_SUPPORTS_64BIT_KERNEL
843 select ARCH_PHYS_ADDR_T_64BIT
844 select SYS_SUPPORTS_BIG_ENDIAN
845 select SYS_SUPPORTS_LITTLE_ENDIAN
846 select SYS_SUPPORTS_HIGHMEM
848 select NR_CPUS_DEFAULT_32
852 select ZONE_DMA32 if 64BIT
854 select SYS_HAS_EARLY_PRINTK
856 select SYS_SUPPORTS_ZBOOT
857 select SYS_SUPPORTS_ZBOOT_UART16550
859 This board is based on Netlogic XLP Processor.
860 Say Y here if you have a XLP based board.
863 bool "Para-Virtualized guest system"
867 select SYS_SUPPORTS_64BIT_KERNEL
868 select SYS_SUPPORTS_32BIT_KERNEL
869 select SYS_SUPPORTS_BIG_ENDIAN
870 select SYS_SUPPORTS_SMP
871 select NR_CPUS_DEFAULT_4
872 select SYS_HAS_EARLY_PRINTK
873 select SYS_HAS_CPU_MIPS32_R2
874 select SYS_HAS_CPU_MIPS64_R2
875 select SYS_HAS_CPU_CAVIUM_OCTEON
879 This option supports guest running under ????
883 source "arch/mips/alchemy/Kconfig"
884 source "arch/mips/ath25/Kconfig"
885 source "arch/mips/ath79/Kconfig"
886 source "arch/mips/bcm47xx/Kconfig"
887 source "arch/mips/bcm63xx/Kconfig"
888 source "arch/mips/jazz/Kconfig"
889 source "arch/mips/jz4740/Kconfig"
890 source "arch/mips/lantiq/Kconfig"
891 source "arch/mips/lasat/Kconfig"
892 source "arch/mips/pmcs-msp71xx/Kconfig"
893 source "arch/mips/ralink/Kconfig"
894 source "arch/mips/sgi-ip27/Kconfig"
895 source "arch/mips/sibyte/Kconfig"
896 source "arch/mips/txx9/Kconfig"
897 source "arch/mips/vr41xx/Kconfig"
898 source "arch/mips/cavium-octeon/Kconfig"
899 source "arch/mips/loongson/Kconfig"
900 source "arch/mips/loongson1/Kconfig"
901 source "arch/mips/netlogic/Kconfig"
902 source "arch/mips/paravirt/Kconfig"
906 config RWSEM_GENERIC_SPINLOCK
910 config RWSEM_XCHGADD_ALGORITHM
913 config ARCH_HAS_ILOG2_U32
917 config ARCH_HAS_ILOG2_U64
921 config GENERIC_HWEIGHT
925 config GENERIC_CALIBRATE_DELAY
929 config SCHED_OMIT_FRAME_POINTER
934 # Select some configuration options automatically based on user selections.
939 config ARCH_MAY_HAVE_PC_FDC
976 select ARCH_REQUIRE_GPIOLIB
982 config ARCH_DMA_ADDR_T_64BIT
983 def_bool (HIGHMEM && ARCH_PHYS_ADDR_T_64BIT) || 64BIT
985 config DMA_MAYBE_COHERENT
986 select DMA_NONCOHERENT
992 config DMA_NONCOHERENT
994 select NEED_DMA_MAP_STATE
996 config NEED_DMA_MAP_STATE
999 config SYS_HAS_EARLY_PRINTK
1003 bool "Support for hot-pluggable CPUs"
1004 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
1006 Say Y here to allow turning CPUs off and on. CPUs can be
1007 controlled through /sys/devices/system/cpu.
1008 (Note: power management support will enable this option
1009 automatically on SMP systems. )
1010 Say N if you want to disable CPU hotplug.
1012 config SYS_SUPPORTS_HOTPLUG_CPU
1019 config MIPS_BONITO64
1034 config NO_IOPORT_MAP
1037 config GENERIC_ISA_DMA
1039 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1042 config GENERIC_ISA_DMA_SUPPORT_BROKEN
1044 select GENERIC_ISA_DMA
1049 config HOLES_IN_ZONE
1053 # Endianness selection. Sufficiently obscure so many users don't know what to
1054 # answer,so we try hard to limit the available choices. Also the use of a
1055 # choice statement should be more obvious to the user.
1058 prompt "Endianness selection"
1060 Some MIPS machines can be configured for either little or big endian
1061 byte order. These modes require different kernels and a different
1062 Linux distribution. In general there is one preferred byteorder for a
1063 particular system but some systems are just as commonly used in the
1064 one or the other endianness.
1066 config CPU_BIG_ENDIAN
1068 depends on SYS_SUPPORTS_BIG_ENDIAN
1070 config CPU_LITTLE_ENDIAN
1071 bool "Little endian"
1072 depends on SYS_SUPPORTS_LITTLE_ENDIAN
1079 config SYS_SUPPORTS_APM_EMULATION
1082 config SYS_SUPPORTS_BIG_ENDIAN
1085 config SYS_SUPPORTS_LITTLE_ENDIAN
1088 config SYS_SUPPORTS_HUGETLBFS
1090 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1093 config MIPS_HUGE_TLB_SUPPORT
1094 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1115 config PCI_GT64XXX_PCI0
1118 config NO_EXCEPT_FILL
1125 select DMA_NONCOHERENT
1127 select SWAP_IO_SPACE
1128 select SYS_HAS_CPU_R5500
1129 select SYS_SUPPORTS_32BIT_KERNEL
1130 select SYS_SUPPORTS_64BIT_KERNEL
1131 select SYS_SUPPORTS_BIG_ENDIAN
1138 select DMA_NONCOHERENT
1139 select SYS_HAS_CPU_MIPS32_R2
1140 select SYS_SUPPORTS_32BIT_KERNEL
1141 select SYS_SUPPORTS_LITTLE_ENDIAN
1142 select SYS_SUPPORTS_BIG_ENDIAN
1143 select SYS_SUPPORTS_MIPS16
1144 select CPU_MIPSR2_IRQ_VI
1150 config SWAP_IO_SPACE
1153 config SGI_HAS_INDYDOG
1165 config SGI_HAS_ZILOG
1168 config SGI_HAS_I8042
1171 config DEFAULT_SGI_PARTITION
1183 config MIPS_L1_CACHE_SHIFT_4
1186 config MIPS_L1_CACHE_SHIFT_5
1189 config MIPS_L1_CACHE_SHIFT_6
1192 config MIPS_L1_CACHE_SHIFT_7
1195 config MIPS_L1_CACHE_SHIFT
1197 default "4" if MIPS_L1_CACHE_SHIFT_4
1198 default "5" if MIPS_L1_CACHE_SHIFT_5
1199 default "6" if MIPS_L1_CACHE_SHIFT_6
1200 default "7" if MIPS_L1_CACHE_SHIFT_7
1203 config HAVE_STD_PC_SERIAL_PORT
1207 bool "ARC console support"
1208 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1212 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1217 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1226 menu "CPU selection"
1232 config CPU_LOONGSON3
1233 bool "Loongson 3 CPU"
1234 depends on SYS_HAS_CPU_LOONGSON3
1235 select CPU_SUPPORTS_64BIT_KERNEL
1236 select CPU_SUPPORTS_HIGHMEM
1237 select CPU_SUPPORTS_HUGEPAGES
1238 select WEAK_ORDERING
1239 select WEAK_REORDERING_BEYOND_LLSC
1241 The Loongson 3 processor implements the MIPS64R2 instruction
1242 set with many extensions.
1244 config CPU_LOONGSON2E
1246 depends on SYS_HAS_CPU_LOONGSON2E
1247 select CPU_LOONGSON2
1249 The Loongson 2E processor implements the MIPS III instruction set
1250 with many extensions.
1252 It has an internal FPGA northbridge, which is compatible to
1255 config CPU_LOONGSON2F
1257 depends on SYS_HAS_CPU_LOONGSON2F
1258 select CPU_LOONGSON2
1259 select ARCH_REQUIRE_GPIOLIB
1261 The Loongson 2F processor implements the MIPS III instruction set
1262 with many extensions.
1264 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1265 have a similar programming interface with FPGA northbridge used in
1268 config CPU_LOONGSON1B
1270 depends on SYS_HAS_CPU_LOONGSON1B
1271 select CPU_LOONGSON1
1273 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1274 release 2 instruction set.
1276 config CPU_MIPS32_R1
1277 bool "MIPS32 Release 1"
1278 depends on SYS_HAS_CPU_MIPS32_R1
1279 select CPU_HAS_PREFETCH
1280 select CPU_SUPPORTS_32BIT_KERNEL
1281 select CPU_SUPPORTS_HIGHMEM
1283 Choose this option to build a kernel for release 1 or later of the
1284 MIPS32 architecture. Most modern embedded systems with a 32-bit
1285 MIPS processor are based on a MIPS32 processor. If you know the
1286 specific type of processor in your system, choose those that one
1287 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1288 Release 2 of the MIPS32 architecture is available since several
1289 years so chances are you even have a MIPS32 Release 2 processor
1290 in which case you should choose CPU_MIPS32_R2 instead for better
1293 config CPU_MIPS32_R2
1294 bool "MIPS32 Release 2"
1295 depends on SYS_HAS_CPU_MIPS32_R2
1296 select CPU_HAS_PREFETCH
1297 select CPU_SUPPORTS_32BIT_KERNEL
1298 select CPU_SUPPORTS_HIGHMEM
1299 select CPU_SUPPORTS_MSA
1302 Choose this option to build a kernel for release 2 or later of the
1303 MIPS32 architecture. Most modern embedded systems with a 32-bit
1304 MIPS processor are based on a MIPS32 processor. If you know the
1305 specific type of processor in your system, choose those that one
1306 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1308 config CPU_MIPS64_R1
1309 bool "MIPS64 Release 1"
1310 depends on SYS_HAS_CPU_MIPS64_R1
1311 select CPU_HAS_PREFETCH
1312 select CPU_SUPPORTS_32BIT_KERNEL
1313 select CPU_SUPPORTS_64BIT_KERNEL
1314 select CPU_SUPPORTS_HIGHMEM
1315 select CPU_SUPPORTS_HUGEPAGES
1317 Choose this option to build a kernel for release 1 or later of the
1318 MIPS64 architecture. Many modern embedded systems with a 64-bit
1319 MIPS processor are based on a MIPS64 processor. If you know the
1320 specific type of processor in your system, choose those that one
1321 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1322 Release 2 of the MIPS64 architecture is available since several
1323 years so chances are you even have a MIPS64 Release 2 processor
1324 in which case you should choose CPU_MIPS64_R2 instead for better
1327 config CPU_MIPS64_R2
1328 bool "MIPS64 Release 2"
1329 depends on SYS_HAS_CPU_MIPS64_R2
1330 select CPU_HAS_PREFETCH
1331 select CPU_SUPPORTS_32BIT_KERNEL
1332 select CPU_SUPPORTS_64BIT_KERNEL
1333 select CPU_SUPPORTS_HIGHMEM
1334 select CPU_SUPPORTS_HUGEPAGES
1335 select CPU_SUPPORTS_MSA
1337 Choose this option to build a kernel for release 2 or later of the
1338 MIPS64 architecture. Many modern embedded systems with a 64-bit
1339 MIPS processor are based on a MIPS64 processor. If you know the
1340 specific type of processor in your system, choose those that one
1341 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1345 depends on SYS_HAS_CPU_R3000
1347 select CPU_SUPPORTS_32BIT_KERNEL
1348 select CPU_SUPPORTS_HIGHMEM
1350 Please make sure to pick the right CPU type. Linux/MIPS is not
1351 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1352 *not* work on R4000 machines and vice versa. However, since most
1353 of the supported machines have an R4000 (or similar) CPU, R4x00
1354 might be a safe bet. If the resulting kernel does not work,
1355 try to recompile with R3000.
1359 depends on SYS_HAS_CPU_TX39XX
1360 select CPU_SUPPORTS_32BIT_KERNEL
1364 depends on SYS_HAS_CPU_VR41XX
1365 select CPU_SUPPORTS_32BIT_KERNEL
1366 select CPU_SUPPORTS_64BIT_KERNEL
1368 The options selects support for the NEC VR4100 series of processors.
1369 Only choose this option if you have one of these processors as a
1370 kernel built with this option will not run on any other type of
1371 processor or vice versa.
1375 depends on SYS_HAS_CPU_R4300
1376 select CPU_SUPPORTS_32BIT_KERNEL
1377 select CPU_SUPPORTS_64BIT_KERNEL
1379 MIPS Technologies R4300-series processors.
1383 depends on SYS_HAS_CPU_R4X00
1384 select CPU_SUPPORTS_32BIT_KERNEL
1385 select CPU_SUPPORTS_64BIT_KERNEL
1386 select CPU_SUPPORTS_HUGEPAGES
1388 MIPS Technologies R4000-series processors other than 4300, including
1389 the R4000, R4400, R4600, and 4700.
1393 depends on SYS_HAS_CPU_TX49XX
1394 select CPU_HAS_PREFETCH
1395 select CPU_SUPPORTS_32BIT_KERNEL
1396 select CPU_SUPPORTS_64BIT_KERNEL
1397 select CPU_SUPPORTS_HUGEPAGES
1401 depends on SYS_HAS_CPU_R5000
1402 select CPU_SUPPORTS_32BIT_KERNEL
1403 select CPU_SUPPORTS_64BIT_KERNEL
1404 select CPU_SUPPORTS_HUGEPAGES
1406 MIPS Technologies R5000-series processors other than the Nevada.
1410 depends on SYS_HAS_CPU_R5432
1411 select CPU_SUPPORTS_32BIT_KERNEL
1412 select CPU_SUPPORTS_64BIT_KERNEL
1413 select CPU_SUPPORTS_HUGEPAGES
1417 depends on SYS_HAS_CPU_R5500
1418 select CPU_SUPPORTS_32BIT_KERNEL
1419 select CPU_SUPPORTS_64BIT_KERNEL
1420 select CPU_SUPPORTS_HUGEPAGES
1422 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1427 depends on SYS_HAS_CPU_R6000
1428 select CPU_SUPPORTS_32BIT_KERNEL
1430 MIPS Technologies R6000 and R6000A series processors. Note these
1431 processors are extremely rare and the support for them is incomplete.
1435 depends on SYS_HAS_CPU_NEVADA
1436 select CPU_SUPPORTS_32BIT_KERNEL
1437 select CPU_SUPPORTS_64BIT_KERNEL
1438 select CPU_SUPPORTS_HUGEPAGES
1440 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1444 depends on SYS_HAS_CPU_R8000
1445 select CPU_HAS_PREFETCH
1446 select CPU_SUPPORTS_64BIT_KERNEL
1448 MIPS Technologies R8000 processors. Note these processors are
1449 uncommon and the support for them is incomplete.
1453 depends on SYS_HAS_CPU_R10000
1454 select CPU_HAS_PREFETCH
1455 select CPU_SUPPORTS_32BIT_KERNEL
1456 select CPU_SUPPORTS_64BIT_KERNEL
1457 select CPU_SUPPORTS_HIGHMEM
1458 select CPU_SUPPORTS_HUGEPAGES
1460 MIPS Technologies R10000-series processors.
1464 depends on SYS_HAS_CPU_RM7000
1465 select CPU_HAS_PREFETCH
1466 select CPU_SUPPORTS_32BIT_KERNEL
1467 select CPU_SUPPORTS_64BIT_KERNEL
1468 select CPU_SUPPORTS_HIGHMEM
1469 select CPU_SUPPORTS_HUGEPAGES
1473 depends on SYS_HAS_CPU_SB1
1474 select CPU_SUPPORTS_32BIT_KERNEL
1475 select CPU_SUPPORTS_64BIT_KERNEL
1476 select CPU_SUPPORTS_HIGHMEM
1477 select CPU_SUPPORTS_HUGEPAGES
1478 select WEAK_ORDERING
1480 config CPU_CAVIUM_OCTEON
1481 bool "Cavium Octeon processor"
1482 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1483 select CPU_HAS_PREFETCH
1484 select CPU_SUPPORTS_64BIT_KERNEL
1485 select WEAK_ORDERING
1486 select CPU_SUPPORTS_HIGHMEM
1487 select CPU_SUPPORTS_HUGEPAGES
1488 select USB_EHCI_BIG_ENDIAN_MMIO
1489 select MIPS_L1_CACHE_SHIFT_7
1491 The Cavium Octeon processor is a highly integrated chip containing
1492 many ethernet hardware widgets for networking tasks. The processor
1493 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1494 Full details can be found at http://www.caviumnetworks.com.
1497 bool "Broadcom BMIPS"
1498 depends on SYS_HAS_CPU_BMIPS
1500 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1501 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1502 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1503 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1504 select CPU_SUPPORTS_32BIT_KERNEL
1505 select DMA_NONCOHERENT
1507 select SWAP_IO_SPACE
1508 select WEAK_ORDERING
1509 select CPU_SUPPORTS_HIGHMEM
1510 select CPU_HAS_PREFETCH
1512 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1515 bool "Netlogic XLR SoC"
1516 depends on SYS_HAS_CPU_XLR
1517 select CPU_SUPPORTS_32BIT_KERNEL
1518 select CPU_SUPPORTS_64BIT_KERNEL
1519 select CPU_SUPPORTS_HIGHMEM
1520 select CPU_SUPPORTS_HUGEPAGES
1521 select WEAK_ORDERING
1522 select WEAK_REORDERING_BEYOND_LLSC
1524 Netlogic Microsystems XLR/XLS processors.
1527 bool "Netlogic XLP SoC"
1528 depends on SYS_HAS_CPU_XLP
1529 select CPU_SUPPORTS_32BIT_KERNEL
1530 select CPU_SUPPORTS_64BIT_KERNEL
1531 select CPU_SUPPORTS_HIGHMEM
1532 select WEAK_ORDERING
1533 select WEAK_REORDERING_BEYOND_LLSC
1534 select CPU_HAS_PREFETCH
1537 Netlogic Microsystems XLP processors.
1540 config CPU_MIPS32_3_5_FEATURES
1541 bool "MIPS32 Release 3.5 Features"
1542 depends on SYS_HAS_CPU_MIPS32_R3_5
1543 depends on CPU_MIPS32_R2
1545 Choose this option to build a kernel for release 2 or later of the
1546 MIPS32 architecture including features from the 3.5 release such as
1547 support for Enhanced Virtual Addressing (EVA).
1549 config CPU_MIPS32_3_5_EVA
1550 bool "Enhanced Virtual Addressing (EVA)"
1551 depends on CPU_MIPS32_3_5_FEATURES
1555 Choose this option if you want to enable the Enhanced Virtual
1556 Addressing (EVA) on your MIPS32 core (such as proAptiv).
1557 One of its primary benefits is an increase in the maximum size
1558 of lowmem (up to 3GB). If unsure, say 'N' here.
1561 config CPU_NOP_WORKAROUNDS
1564 config CPU_JUMP_WORKAROUNDS
1567 config CPU_LOONGSON2F_WORKAROUNDS
1568 bool "Loongson 2F Workarounds"
1570 select CPU_NOP_WORKAROUNDS
1571 select CPU_JUMP_WORKAROUNDS
1573 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1574 require workarounds. Without workarounds the system may hang
1575 unexpectedly. For more information please refer to the gas
1576 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1578 Loongson 2F03 and later have fixed these issues and no workarounds
1579 are needed. The workarounds have no significant side effect on them
1580 but may decrease the performance of the system so this option should
1581 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1584 If unsure, please say Y.
1585 endif # CPU_LOONGSON2F
1587 config SYS_SUPPORTS_ZBOOT
1589 select HAVE_KERNEL_GZIP
1590 select HAVE_KERNEL_BZIP2
1591 select HAVE_KERNEL_LZ4
1592 select HAVE_KERNEL_LZMA
1593 select HAVE_KERNEL_LZO
1594 select HAVE_KERNEL_XZ
1596 config SYS_SUPPORTS_ZBOOT_UART16550
1598 select SYS_SUPPORTS_ZBOOT
1600 config CPU_LOONGSON2
1602 select CPU_SUPPORTS_32BIT_KERNEL
1603 select CPU_SUPPORTS_64BIT_KERNEL
1604 select CPU_SUPPORTS_HIGHMEM
1605 select CPU_SUPPORTS_HUGEPAGES
1607 config CPU_LOONGSON1
1611 select CPU_HAS_PREFETCH
1612 select CPU_SUPPORTS_32BIT_KERNEL
1613 select CPU_SUPPORTS_HIGHMEM
1614 select CPU_SUPPORTS_CPUFREQ
1616 config CPU_BMIPS32_3300
1617 select SMP_UP if SMP
1620 config CPU_BMIPS4350
1622 select SYS_SUPPORTS_SMP
1623 select SYS_SUPPORTS_HOTPLUG_CPU
1625 config CPU_BMIPS4380
1627 select MIPS_L1_CACHE_SHIFT_6
1628 select SYS_SUPPORTS_SMP
1629 select SYS_SUPPORTS_HOTPLUG_CPU
1631 config CPU_BMIPS5000
1633 select MIPS_CPU_SCACHE
1634 select MIPS_L1_CACHE_SHIFT_7
1635 select SYS_SUPPORTS_SMP
1636 select SYS_SUPPORTS_HOTPLUG_CPU
1638 config SYS_HAS_CPU_LOONGSON3
1640 select CPU_SUPPORTS_CPUFREQ
1642 config SYS_HAS_CPU_LOONGSON2E
1645 config SYS_HAS_CPU_LOONGSON2F
1647 select CPU_SUPPORTS_CPUFREQ
1648 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1649 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1651 config SYS_HAS_CPU_LOONGSON1B
1654 config SYS_HAS_CPU_MIPS32_R1
1657 config SYS_HAS_CPU_MIPS32_R2
1660 config SYS_HAS_CPU_MIPS32_R3_5
1663 config SYS_HAS_CPU_MIPS64_R1
1666 config SYS_HAS_CPU_MIPS64_R2
1669 config SYS_HAS_CPU_R3000
1672 config SYS_HAS_CPU_TX39XX
1675 config SYS_HAS_CPU_VR41XX
1678 config SYS_HAS_CPU_R4300
1681 config SYS_HAS_CPU_R4X00
1684 config SYS_HAS_CPU_TX49XX
1687 config SYS_HAS_CPU_R5000
1690 config SYS_HAS_CPU_R5432
1693 config SYS_HAS_CPU_R5500
1696 config SYS_HAS_CPU_R6000
1699 config SYS_HAS_CPU_NEVADA
1702 config SYS_HAS_CPU_R8000
1705 config SYS_HAS_CPU_R10000
1708 config SYS_HAS_CPU_RM7000
1711 config SYS_HAS_CPU_SB1
1714 config SYS_HAS_CPU_CAVIUM_OCTEON
1717 config SYS_HAS_CPU_BMIPS
1720 config SYS_HAS_CPU_BMIPS32_3300
1722 select SYS_HAS_CPU_BMIPS
1724 config SYS_HAS_CPU_BMIPS4350
1726 select SYS_HAS_CPU_BMIPS
1728 config SYS_HAS_CPU_BMIPS4380
1730 select SYS_HAS_CPU_BMIPS
1732 config SYS_HAS_CPU_BMIPS5000
1734 select SYS_HAS_CPU_BMIPS
1736 config SYS_HAS_CPU_XLR
1739 config SYS_HAS_CPU_XLP
1742 config MIPS_MALTA_PM
1743 depends on MIPS_MALTA
1749 # CPU may reorder R->R, R->W, W->R, W->W
1750 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1752 config WEAK_ORDERING
1756 # CPU may reorder reads and writes beyond LL/SC
1757 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1759 config WEAK_REORDERING_BEYOND_LLSC
1764 # These two indicate any level of the MIPS32 and MIPS64 architecture
1768 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1772 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1775 # These two indicate the revision of the architecture, either Release 1 or Release 2
1779 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1783 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1788 config SYS_SUPPORTS_32BIT_KERNEL
1790 config SYS_SUPPORTS_64BIT_KERNEL
1792 config CPU_SUPPORTS_32BIT_KERNEL
1794 config CPU_SUPPORTS_64BIT_KERNEL
1796 config CPU_SUPPORTS_CPUFREQ
1798 config CPU_SUPPORTS_ADDRWINCFG
1800 config CPU_SUPPORTS_HUGEPAGES
1802 config CPU_SUPPORTS_UNCACHED_ACCELERATED
1804 config MIPS_PGD_C0_CONTEXT
1806 default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
1809 # Set to y for ptrace access to watch registers.
1811 config HARDWARE_WATCHPOINTS
1813 default y if CPU_MIPSR1 || CPU_MIPSR2
1818 prompt "Kernel code model"
1820 You should only select this option if you have a workload that
1821 actually benefits from 64-bit processing or if your machine has
1822 large memory. You will only be presented a single option in this
1823 menu if your system does not support both 32-bit and 64-bit kernels.
1826 bool "32-bit kernel"
1827 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1830 Select this option if you want to build a 32-bit kernel.
1832 bool "64-bit kernel"
1833 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1835 Select this option if you want to build a 64-bit kernel.
1840 bool "KVM Guest Kernel"
1841 depends on BROKEN_ON_SMP
1843 Select this option if building a guest kernel for KVM (Trap & Emulate) mode
1845 config KVM_GUEST_TIMER_FREQ
1846 int "Count/Compare Timer Frequency (MHz)"
1847 depends on KVM_GUEST
1850 Set this to non-zero if building a guest kernel for KVM to skip RTC
1851 emulation when determining guest CPU Frequency. Instead, the guest's
1852 timer frequency is specified directly.
1855 prompt "Kernel page size"
1856 default PAGE_SIZE_4KB
1858 config PAGE_SIZE_4KB
1860 depends on !CPU_LOONGSON2 && !CPU_LOONGSON3
1862 This option select the standard 4kB Linux page size. On some
1863 R3000-family processors this is the only available page size. Using
1864 4kB page size will minimize memory consumption and is therefore
1865 recommended for low memory systems.
1867 config PAGE_SIZE_8KB
1869 depends on CPU_R8000 || CPU_CAVIUM_OCTEON
1871 Using 8kB page size will result in higher performance kernel at
1872 the price of higher memory consumption. This option is available
1873 only on R8000 and cnMIPS processors. Note that you will need a
1874 suitable Linux distribution to support this.
1876 config PAGE_SIZE_16KB
1878 depends on !CPU_R3000 && !CPU_TX39XX
1880 Using 16kB page size will result in higher performance kernel at
1881 the price of higher memory consumption. This option is available on
1882 all non-R3000 family processors. Note that you will need a suitable
1883 Linux distribution to support this.
1885 config PAGE_SIZE_32KB
1887 depends on CPU_CAVIUM_OCTEON
1889 Using 32kB page size will result in higher performance kernel at
1890 the price of higher memory consumption. This option is available
1891 only on cnMIPS cores. Note that you will need a suitable Linux
1892 distribution to support this.
1894 config PAGE_SIZE_64KB
1896 depends on !CPU_R3000 && !CPU_TX39XX
1898 Using 64kB page size will result in higher performance kernel at
1899 the price of higher memory consumption. This option is available on
1900 all non-R3000 family processor. Not that at the time of this
1901 writing this option is still high experimental.
1905 config FORCE_MAX_ZONEORDER
1906 int "Maximum zone order"
1907 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
1908 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
1909 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
1910 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
1911 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
1912 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
1916 The kernel memory allocator divides physically contiguous memory
1917 blocks into "zones", where each zone is a power of two number of
1918 pages. This option selects the largest power of two that the kernel
1919 keeps in the memory allocator. If you need to allocate very large
1920 blocks of physically contiguous memory, then you may need to
1921 increase this value.
1923 This config option is actually maximum order plus one. For example,
1924 a value of 11 means that the largest free memory block is 2^10 pages.
1926 The page size is not necessarily 4KB. Keep this in mind
1927 when choosing a value for this option.
1932 config IP22_CPU_SCACHE
1937 # Support for a MIPS32 / MIPS64 style S-caches
1939 config MIPS_CPU_SCACHE
1943 config R5000_CPU_SCACHE
1947 config RM7000_CPU_SCACHE
1951 config SIBYTE_DMA_PAGEOPS
1952 bool "Use DMA to clear/copy pages"
1955 Instead of using the CPU to zero and copy pages, use a Data Mover
1956 channel. These DMA channels are otherwise unused by the standard
1957 SiByte Linux port. Seems to give a small performance benefit.
1959 config CPU_HAS_PREFETCH
1962 config CPU_GENERIC_DUMP_TLB
1964 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
1968 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1970 config CPU_R4K_CACHE_TLB
1972 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1975 bool "MIPS MT SMP support (1 TC on each available VPE)"
1976 depends on SYS_SUPPORTS_MULTITHREADING
1977 select CPU_MIPSR2_IRQ_VI
1978 select CPU_MIPSR2_IRQ_EI
1984 select SYS_SUPPORTS_SMP
1985 select SYS_SUPPORTS_SCHED_SMT
1986 select MIPS_PERF_SHARED_TC_COUNTERS
1988 This is a kernel model which is known as SMVP. This is supported
1989 on cores with the MT ASE and uses the available VPEs to implement
1990 virtual processors which supports SMP. This is equivalent to the
1991 Intel Hyperthreading feature. For further information go to
1992 <http://www.imgtec.com/mips/mips-multithreading.asp>.
1998 bool "SMT (multithreading) scheduler support"
1999 depends on SYS_SUPPORTS_SCHED_SMT
2002 SMT scheduler support improves the CPU scheduler's decision making
2003 when dealing with MIPS MT enabled cores at a cost of slightly
2004 increased overhead in some places. If unsure say N here.
2006 config SYS_SUPPORTS_SCHED_SMT
2009 config SYS_SUPPORTS_MULTITHREADING
2012 config MIPS_MT_FPAFF
2013 bool "Dynamic FPU affinity for FP-intensive threads"
2015 depends on MIPS_MT_SMP
2017 config MIPS_VPE_LOADER
2018 bool "VPE loader support."
2019 depends on SYS_SUPPORTS_MULTITHREADING && MODULES
2020 select CPU_MIPSR2_IRQ_VI
2021 select CPU_MIPSR2_IRQ_EI
2024 Includes a loader for loading an elf relocatable object
2025 onto another VPE and running it.
2027 config MIPS_VPE_LOADER_CMP
2030 depends on MIPS_VPE_LOADER && MIPS_CMP
2032 config MIPS_VPE_LOADER_MT
2035 depends on MIPS_VPE_LOADER && !MIPS_CMP
2037 config MIPS_VPE_LOADER_TOM
2038 bool "Load VPE program into memory hidden from linux"
2039 depends on MIPS_VPE_LOADER
2042 The loader can use memory that is present but has been hidden from
2043 Linux using the kernel command line option "mem=xxMB". It's up to
2044 you to ensure the amount you put in the option and the space your
2045 program requires is less or equal to the amount physically present.
2047 config MIPS_VPE_APSP_API
2048 bool "Enable support for AP/SP API (RTLX)"
2049 depends on MIPS_VPE_LOADER
2052 config MIPS_VPE_APSP_API_CMP
2055 depends on MIPS_VPE_APSP_API && MIPS_CMP
2057 config MIPS_VPE_APSP_API_MT
2060 depends on MIPS_VPE_APSP_API && !MIPS_CMP
2063 bool "MIPS CMP framework support (DEPRECATED)"
2064 depends on SYS_SUPPORTS_MIPS_CMP
2068 select SYS_SUPPORTS_SMP
2069 select WEAK_ORDERING
2072 Select this if you are using a bootloader which implements the "CMP
2073 framework" protocol (ie. YAMON) and want your kernel to make use of
2074 its ability to start secondary CPUs.
2076 Unless you have a specific need, you should use CONFIG_MIPS_CPS
2080 bool "MIPS Coherent Processing System support"
2081 depends on SYS_SUPPORTS_MIPS_CPS
2084 select MIPS_CPS_PM if HOTPLUG_CPU
2087 select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2088 select SYS_SUPPORTS_HOTPLUG_CPU
2089 select SYS_SUPPORTS_SMP
2090 select WEAK_ORDERING
2092 Select this if you wish to run an SMP kernel across multiple cores
2093 within a MIPS Coherent Processing System. When this option is
2094 enabled the kernel will probe for other cores and boot them with
2095 no external assistance. It is safe to enable this when hardware
2096 support is unavailable.
2112 config SB1_PASS_1_WORKAROUNDS
2114 depends on CPU_SB1_PASS_1
2117 config SB1_PASS_2_WORKAROUNDS
2119 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2122 config SB1_PASS_2_1_WORKAROUNDS
2124 depends on CPU_SB1 && CPU_SB1_PASS_2
2128 config ARCH_PHYS_ADDR_T_64BIT
2132 prompt "SmartMIPS or microMIPS ASE support"
2134 config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
2137 Select this if you want neither microMIPS nor SmartMIPS support
2139 config CPU_HAS_SMARTMIPS
2140 depends on SYS_SUPPORTS_SMARTMIPS
2143 SmartMIPS is a extension of the MIPS32 architecture aimed at
2144 increased security at both hardware and software level for
2145 smartcards. Enabling this option will allow proper use of the
2146 SmartMIPS instructions by Linux applications. However a kernel with
2147 this option will not work on a MIPS core without SmartMIPS core. If
2148 you don't know you probably don't have SmartMIPS and should say N
2151 config CPU_MICROMIPS
2152 depends on 32BIT && SYS_SUPPORTS_MICROMIPS
2155 When this option is enabled the kernel will be built using the
2161 bool "Support for the MIPS SIMD Architecture (EXPERIMENTAL)"
2162 depends on CPU_SUPPORTS_MSA
2163 depends on 64BIT || MIPS_O32_FP64_SUPPORT
2165 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2166 and a set of SIMD instructions to operate on them. When this option
2167 is enabled the kernel will support allocating & switching MSA
2168 vector register contexts. If you know that your kernel will only be
2169 running on CPUs which do not support MSA or that your userland will
2170 not be making use of it then you may wish to say N here to reduce
2171 the size & complexity of your kernel.
2182 # Vectored interrupt mode is an R2 feature
2184 config CPU_MIPSR2_IRQ_VI
2188 # Extended interrupt mode is an R2 feature
2190 config CPU_MIPSR2_IRQ_EI
2195 depends on !CPU_R3000
2201 config CPU_DADDI_WORKAROUNDS
2204 config CPU_R4000_WORKAROUNDS
2206 select CPU_R4400_WORKAROUNDS
2208 config CPU_R4400_WORKAROUNDS
2212 # - Highmem only makes sense for the 32-bit kernel.
2213 # - The current highmem code will only work properly on physically indexed
2214 # caches such as R3000, SB1, R7000 or those that look like they're virtually
2215 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2216 # moment we protect the user and offer the highmem option only on machines
2217 # where it's known to be safe. This will not offer highmem on a few systems
2218 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2219 # indexed CPUs but we're playing safe.
2220 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2221 # know they might have memory configurations that could make use of highmem
2225 bool "High Memory Support"
2226 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2228 config CPU_SUPPORTS_HIGHMEM
2231 config SYS_SUPPORTS_HIGHMEM
2234 config SYS_SUPPORTS_SMARTMIPS
2237 config SYS_SUPPORTS_MICROMIPS
2240 config SYS_SUPPORTS_MIPS16
2243 This option must be set if a kernel might be executed on a MIPS16-
2244 enabled CPU even if MIPS16 is not actually being used. In other
2245 words, it makes the kernel MIPS16-tolerant.
2247 config CPU_SUPPORTS_MSA
2250 config ARCH_FLATMEM_ENABLE
2252 depends on !NUMA && !CPU_LOONGSON2
2254 config ARCH_DISCONTIGMEM_ENABLE
2256 default y if SGI_IP27
2258 Say Y to support efficient handling of discontiguous physical memory,
2259 for architectures which are either NUMA (Non-Uniform Memory Access)
2260 or have huge holes in the physical address space for other reasons.
2261 See <file:Documentation/vm/numa> for more.
2263 config ARCH_SPARSEMEM_ENABLE
2265 select SPARSEMEM_STATIC
2269 depends on SYS_SUPPORTS_NUMA
2271 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2272 Access). This option improves performance on systems with more
2273 than two nodes; on two node systems it is generally better to
2274 leave it disabled; on single node systems disable this option
2277 config SYS_SUPPORTS_NUMA
2283 depends on NEED_MULTIPLE_NODES
2285 config HW_PERF_EVENTS
2286 bool "Enable hardware performance counter support for perf events"
2287 depends on PERF_EVENTS && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP)
2290 Enable hardware performance counter support for perf events. If
2291 disabled, perf events will use software events only.
2296 bool "Multi-Processing support"
2297 depends on SYS_SUPPORTS_SMP
2299 This enables support for systems with more than one CPU. If you have
2300 a system with only one CPU, say N. If you have a system with more
2301 than one CPU, say Y.
2303 If you say N here, the kernel will run on uni- and multiprocessor
2304 machines, but will use only one CPU of a multiprocessor machine. If
2305 you say Y here, the kernel will run on many, but not all,
2306 uniprocessor machines. On a uniprocessor machine, the kernel
2307 will run faster if you say N here.
2309 People using multiprocessor machines who say Y here should also say
2310 Y to "Enhanced Real Time Clock Support", below.
2312 See also the SMP-HOWTO available at
2313 <http://www.tldp.org/docs.html#howto>.
2315 If you don't know what to do here, say N.
2320 config SYS_SUPPORTS_MIPS_CMP
2323 config SYS_SUPPORTS_MIPS_CPS
2326 config SYS_SUPPORTS_SMP
2329 config NR_CPUS_DEFAULT_4
2332 config NR_CPUS_DEFAULT_8
2335 config NR_CPUS_DEFAULT_16
2338 config NR_CPUS_DEFAULT_32
2341 config NR_CPUS_DEFAULT_64
2345 int "Maximum number of CPUs (2-256)"
2348 default "4" if NR_CPUS_DEFAULT_4
2349 default "8" if NR_CPUS_DEFAULT_8
2350 default "16" if NR_CPUS_DEFAULT_16
2351 default "32" if NR_CPUS_DEFAULT_32
2352 default "64" if NR_CPUS_DEFAULT_64
2354 This allows you to specify the maximum number of CPUs which this
2355 kernel will support. The maximum supported value is 32 for 32-bit
2356 kernel and 64 for 64-bit kernels; the minimum value which makes
2357 sense is 1 for Qemu (useful only for kernel debugging purposes)
2358 and 2 for all others.
2360 This is purely to save memory - each supported CPU adds
2361 approximately eight kilobytes to the kernel image. For best
2362 performance should round up your number of processors to the next
2365 config MIPS_PERF_SHARED_TC_COUNTERS
2369 # Timer Interrupt Frequency Configuration
2373 prompt "Timer frequency"
2376 Allows the configuration of the timer frequency.
2379 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2382 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2385 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2388 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2391 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2394 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2397 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2401 config SYS_SUPPORTS_48HZ
2404 config SYS_SUPPORTS_100HZ
2407 config SYS_SUPPORTS_128HZ
2410 config SYS_SUPPORTS_250HZ
2413 config SYS_SUPPORTS_256HZ
2416 config SYS_SUPPORTS_1000HZ
2419 config SYS_SUPPORTS_1024HZ
2422 config SYS_SUPPORTS_ARBIT_HZ
2424 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2425 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2426 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2427 !SYS_SUPPORTS_1024HZ
2432 default 100 if HZ_100
2433 default 128 if HZ_128
2434 default 250 if HZ_250
2435 default 256 if HZ_256
2436 default 1000 if HZ_1000
2437 default 1024 if HZ_1024
2439 source "kernel/Kconfig.preempt"
2442 bool "Kexec system call"
2444 kexec is a system call that implements the ability to shutdown your
2445 current kernel, and to start another kernel. It is like a reboot
2446 but it is independent of the system firmware. And like a reboot
2447 you can start any kernel with it, not just Linux.
2449 The name comes from the similarity to the exec system call.
2451 It is an ongoing process to be certain the hardware in a machine
2452 is properly shutdown, so do not be surprised if this code does not
2453 initially work for you. As of this writing the exact hardware
2454 interface is strongly in flux, so no good recommendation can be
2458 bool "Kernel crash dumps"
2460 Generate crash dump after being started by kexec.
2461 This should be normally only set in special crash dump kernels
2462 which are loaded in the main kernel with kexec-tools into
2463 a specially reserved region and then later executed after
2464 a crash by kdump/kexec. The crash dump kernel must be compiled
2465 to a memory address not used by the main kernel or firmware using
2468 config PHYSICAL_START
2469 hex "Physical address where the kernel is loaded"
2470 default "0xffffffff84000000" if 64BIT
2471 default "0x84000000" if 32BIT
2472 depends on CRASH_DUMP
2474 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2475 If you plan to use kernel for capturing the crash dump change
2476 this value to start of the reserved region (the "X" value as
2477 specified in the "crashkernel=YM@XM" command line boot parameter
2478 passed to the panic-ed kernel).
2481 bool "Enable seccomp to safely compute untrusted bytecode"
2485 This kernel feature is useful for number crunching applications
2486 that may need to compute untrusted bytecode during their
2487 execution. By using pipes or other transports made available to
2488 the process as file descriptors supporting the read/write
2489 syscalls, it's possible to isolate those applications in
2490 their own address space using seccomp. Once seccomp is
2491 enabled via /proc/<pid>/seccomp, it cannot be disabled
2492 and the task is only allowed to execute a few safe syscalls
2493 defined by each seccomp mode.
2495 If unsure, say Y. Only embedded should say N here.
2497 config MIPS_O32_FP64_SUPPORT
2498 bool "Support for O32 binaries using 64-bit FP (EXPERIMENTAL)"
2499 depends on 32BIT || MIPS32_O32
2501 When this is enabled, the kernel will support use of 64-bit floating
2502 point registers with binaries using the O32 ABI along with the
2503 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
2504 32-bit MIPS systems this support is at the cost of increasing the
2505 size and complexity of the compiled FPU emulator. Thus if you are
2506 running a MIPS32 system and know that none of your userland binaries
2507 will require 64-bit floating point, you may wish to reduce the size
2508 of your kernel & potentially improve FP emulation performance by
2511 Although binutils currently supports use of this flag the details
2512 concerning its effect upon the O32 ABI in userland are still being
2513 worked on. In order to avoid userland becoming dependant upon current
2514 behaviour before the details have been finalised, this option should
2515 be considered experimental and only enabled by those working upon
2523 select OF_EARLY_FLATTREE
2531 config LOCKDEP_SUPPORT
2535 config STACKTRACE_SUPPORT
2539 source "init/Kconfig"
2541 source "kernel/Kconfig.freezer"
2543 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2551 bool "Support for PCI controller"
2552 depends on HW_HAS_PCI
2554 select NO_GENERIC_PCI_IOPORT_MAP
2556 Find out whether you have a PCI motherboard. PCI is the name of a
2557 bus system, i.e. the way the CPU talks to the other stuff inside
2558 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2562 bool "Support for HT-linked PCI"
2564 depends on CPU_LOONGSON3
2568 Loongson family machines use Hyper-Transport bus for inter-core
2569 connection and device connection. The PCI bus is a subordinate
2570 linked at HT. Choose Y for Loongson-3 based machines.
2575 source "drivers/pci/Kconfig"
2577 source "drivers/pci/pcie/Kconfig"
2580 # ISA support is now enabled via select. Too many systems still have the one
2581 # or other ISA chip on the board that users don't know about so don't expect
2582 # users to choose the right thing ...
2589 depends on HW_HAS_EISA
2591 select GENERIC_ISA_DMA
2593 The Extended Industry Standard Architecture (EISA) bus was
2594 developed as an open alternative to the IBM MicroChannel bus.
2596 The EISA bus provided some of the features of the IBM MicroChannel
2597 bus while maintaining backward compatibility with cards made for
2598 the older ISA bus. The EISA bus saw limited use between 1988 and
2599 1995 when it was made obsolete by the PCI bus.
2601 Say Y here if you are building a kernel for an EISA-based machine.
2605 source "drivers/eisa/Kconfig"
2608 bool "TURBOchannel support"
2609 depends on MACH_DECSTATION
2611 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2612 processors. TURBOchannel programming specifications are available
2614 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2616 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2617 Linux driver support status is documented at:
2618 <http://www.linux-mips.org/wiki/DECstation>
2628 select MIPS_EXTERNAL_TIMER
2636 source "drivers/pcmcia/Kconfig"
2638 source "drivers/pci/hotplug/Kconfig"
2641 tristate "RapidIO support"
2645 If you say Y here, the kernel will include drivers and
2646 infrastructure code to support RapidIO interconnect devices.
2648 source "drivers/rapidio/Kconfig"
2652 menu "Executable file formats"
2654 source "fs/Kconfig.binfmt"
2659 config MIPS32_COMPAT
2660 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2663 Select this option if you want Linux/MIPS 32-bit binary
2664 compatibility. Since all software available for Linux/MIPS is
2665 currently 32-bit you should say Y here.
2669 depends on MIPS32_COMPAT
2670 select ARCH_WANT_OLD_COMPAT_IPC
2673 config SYSVIPC_COMPAT
2675 depends on COMPAT && SYSVIPC
2679 bool "Kernel support for o32 binaries"
2680 depends on MIPS32_COMPAT
2682 Select this option if you want to run o32 binaries. These are pure
2683 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2684 existing binaries are in this format.
2689 bool "Kernel support for n32 binaries"
2690 depends on MIPS32_COMPAT
2692 Select this option if you want to run n32 binaries. These are
2693 64-bit binaries using 32-bit quantities for addressing and certain
2694 data that would normally be 64-bit. They are used in special
2701 default y if MIPS32_O32 || MIPS32_N32
2705 menu "Power management options"
2707 config ARCH_HIBERNATION_POSSIBLE
2709 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2711 config ARCH_SUSPEND_POSSIBLE
2713 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2715 source "kernel/power/Kconfig"
2719 config MIPS_EXTERNAL_TIMER
2722 menu "CPU Power Management"
2724 if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
2725 source "drivers/cpufreq/Kconfig"
2728 source "drivers/cpuidle/Kconfig"
2732 source "net/Kconfig"
2734 source "drivers/Kconfig"
2736 source "drivers/firmware/Kconfig"
2740 source "arch/mips/Kconfig.debug"
2742 source "security/Kconfig"
2744 source "crypto/Kconfig"
2746 source "lib/Kconfig"
2748 source "arch/mips/kvm/Kconfig"