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_SYSCALL_TRACEPOINTS
25 select HAVE_DEBUG_KMEMLEAK
26 select HAVE_SYSCALL_TRACEPOINTS
27 select ARCH_HAS_ELF_RANDOMIZE
28 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT
29 select RTC_LIB if !MACH_LOONGSON64
30 select GENERIC_ATOMIC64 if !64BIT
31 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
33 select HAVE_DMA_CONTIGUOUS
34 select HAVE_DMA_API_DEBUG
35 select GENERIC_IRQ_PROBE
36 select GENERIC_IRQ_SHOW
37 select GENERIC_PCI_IOMAP
38 select HAVE_ARCH_JUMP_LABEL
39 select ARCH_WANT_IPC_PARSE_VERSION
40 select IRQ_FORCED_THREADING
42 select HAVE_MEMBLOCK_NODE_MAP
43 select ARCH_DISCARD_MEMBLOCK
44 select GENERIC_SMP_IDLE_THREAD
45 select BUILDTIME_EXTABLE_SORT
46 select GENERIC_CLOCKEVENTS
47 select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC
48 select GENERIC_CMOS_UPDATE
49 select HAVE_MOD_ARCH_SPECIFIC
51 select MODULES_USE_ELF_REL if MODULES
52 select MODULES_USE_ELF_RELA if MODULES && 64BIT
53 select CLONE_BACKWARDS
54 select HAVE_DEBUG_STACKOVERFLOW
55 select HAVE_CC_STACKPROTECTOR
56 select CPU_PM if CPU_IDLE
57 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
58 select ARCH_BINFMT_ELF_STATE
59 select SYSCTL_EXCEPTION_TRACE
60 select HAVE_VIRT_CPU_ACCOUNTING_GEN
61 select HAVE_IRQ_TIME_ACCOUNTING
63 menu "Machine selection"
70 bool "Alchemy processor based machines"
71 select ARCH_PHYS_ADDR_T_64BIT
75 select DMA_MAYBE_COHERENT # Au1000,1500,1100 aren't, rest is
76 select SYS_HAS_CPU_MIPS32_R1
77 select SYS_SUPPORTS_32BIT_KERNEL
78 select SYS_SUPPORTS_APM_EMULATION
79 select ARCH_REQUIRE_GPIOLIB
80 select SYS_SUPPORTS_ZBOOT
84 bool "Texas Instruments AR7"
86 select DMA_NONCOHERENT
92 select SYS_HAS_CPU_MIPS32_R1
93 select SYS_HAS_EARLY_PRINTK
94 select SYS_SUPPORTS_32BIT_KERNEL
95 select SYS_SUPPORTS_LITTLE_ENDIAN
96 select SYS_SUPPORTS_MIPS16
97 select SYS_SUPPORTS_ZBOOT_UART16550
98 select ARCH_REQUIRE_GPIOLIB
102 Support for the Texas Instruments AR7 System-on-a-Chip
103 family: TNETD7100, 7200 and 7300.
106 bool "Atheros AR231x/AR531x SoC support"
109 select DMA_NONCOHERENT
112 select SYS_HAS_CPU_MIPS32_R1
113 select SYS_SUPPORTS_BIG_ENDIAN
114 select SYS_SUPPORTS_32BIT_KERNEL
115 select SYS_HAS_EARLY_PRINTK
117 Support for Atheros AR231x and Atheros AR531x based boards
120 bool "Atheros AR71XX/AR724X/AR913X based boards"
121 select ARCH_HAS_RESET_CONTROLLER
122 select ARCH_REQUIRE_GPIOLIB
126 select DMA_NONCOHERENT
132 select SYS_HAS_CPU_MIPS32_R2
133 select SYS_HAS_EARLY_PRINTK
134 select SYS_SUPPORTS_32BIT_KERNEL
135 select SYS_SUPPORTS_BIG_ENDIAN
136 select SYS_SUPPORTS_MIPS16
137 select SYS_SUPPORTS_ZBOOT
140 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
143 bool "Broadcom Generic BMIPS kernel"
145 select NO_EXCEPT_FILL
151 select BCM7038_L1_IRQ
152 select BCM7120_L2_IRQ
153 select BRCMSTB_L2_IRQ
155 select RAW_IRQ_ACCESSORS
156 select DMA_NONCOHERENT
157 select SYS_SUPPORTS_32BIT_KERNEL
158 select SYS_SUPPORTS_LITTLE_ENDIAN
159 select SYS_SUPPORTS_BIG_ENDIAN
160 select SYS_SUPPORTS_HIGHMEM
161 select SYS_HAS_CPU_BMIPS32_3300
162 select SYS_HAS_CPU_BMIPS4350
163 select SYS_HAS_CPU_BMIPS4380
164 select SYS_HAS_CPU_BMIPS5000
166 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
167 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
168 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
169 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
171 Build a generic DT-based kernel image that boots on select
172 BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top
173 box chips. Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN
174 must be set appropriately for your board.
177 bool "Broadcom BCM47XX based boards"
178 select ARCH_WANT_OPTIONAL_GPIOLIB
182 select DMA_NONCOHERENT
185 select SYS_HAS_CPU_MIPS32_R1
186 select NO_EXCEPT_FILL
187 select SYS_SUPPORTS_32BIT_KERNEL
188 select SYS_SUPPORTS_LITTLE_ENDIAN
189 select SYS_SUPPORTS_MIPS16
190 select SYS_HAS_EARLY_PRINTK
191 select USE_GENERIC_EARLY_PRINTK_8250
193 select LEDS_GPIO_REGISTER
196 Support for BCM47XX based boards
199 bool "Broadcom BCM63XX based boards"
204 select DMA_NONCOHERENT
206 select SYS_SUPPORTS_32BIT_KERNEL
207 select SYS_SUPPORTS_BIG_ENDIAN
208 select SYS_HAS_EARLY_PRINTK
210 select ARCH_REQUIRE_GPIOLIB
212 select MIPS_L1_CACHE_SHIFT_4
214 Support for BCM63XX based boards
221 select DMA_NONCOHERENT
227 select PCI_GT64XXX_PCI0
229 select SYS_HAS_CPU_NEVADA
230 select SYS_HAS_EARLY_PRINTK
231 select SYS_SUPPORTS_32BIT_KERNEL
232 select SYS_SUPPORTS_64BIT_KERNEL
233 select SYS_SUPPORTS_LITTLE_ENDIAN
234 select USE_GENERIC_EARLY_PRINTK_8250
236 config MACH_DECSTATION
240 select CEVT_R4K if CPU_R4X00
242 select CSRC_R4K if CPU_R4X00
243 select CPU_DADDI_WORKAROUNDS if 64BIT
244 select CPU_R4000_WORKAROUNDS if 64BIT
245 select CPU_R4400_WORKAROUNDS if 64BIT
246 select DMA_NONCOHERENT
249 select SYS_HAS_CPU_R3000
250 select SYS_HAS_CPU_R4X00
251 select SYS_SUPPORTS_32BIT_KERNEL
252 select SYS_SUPPORTS_64BIT_KERNEL
253 select SYS_SUPPORTS_LITTLE_ENDIAN
254 select SYS_SUPPORTS_128HZ
255 select SYS_SUPPORTS_256HZ
256 select SYS_SUPPORTS_1024HZ
257 select MIPS_L1_CACHE_SHIFT_4
259 This enables support for DEC's MIPS based workstations. For details
260 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
261 DECstation porting pages on <http://decstation.unix-ag.org/>.
263 If you have one of the following DECstation Models you definitely
264 want to choose R4xx0 for the CPU Type:
271 otherwise choose R3000.
274 bool "Jazz family of machines"
277 select ARCH_MAY_HAVE_PC_FDC
280 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
281 select GENERIC_ISA_DMA
282 select HAVE_PCSPKR_PLATFORM
287 select SYS_HAS_CPU_R4X00
288 select SYS_SUPPORTS_32BIT_KERNEL
289 select SYS_SUPPORTS_64BIT_KERNEL
290 select SYS_SUPPORTS_100HZ
292 This a family of machines based on the MIPS R4030 chipset which was
293 used by several vendors to build RISC/os and Windows NT workstations.
294 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
295 Olivetti M700-10 workstations.
298 bool "Ingenic SoC based machines"
299 select SYS_SUPPORTS_32BIT_KERNEL
300 select SYS_SUPPORTS_LITTLE_ENDIAN
301 select SYS_SUPPORTS_ZBOOT_UART16550
302 select DMA_NONCOHERENT
304 select ARCH_REQUIRE_GPIOLIB
306 select GENERIC_IRQ_CHIP
312 bool "Lantiq based platforms"
313 select DMA_NONCOHERENT
317 select SYS_HAS_CPU_MIPS32_R1
318 select SYS_HAS_CPU_MIPS32_R2
319 select SYS_SUPPORTS_BIG_ENDIAN
320 select SYS_SUPPORTS_32BIT_KERNEL
321 select SYS_SUPPORTS_MIPS16
322 select SYS_SUPPORTS_MULTITHREADING
323 select SYS_HAS_EARLY_PRINTK
324 select ARCH_REQUIRE_GPIOLIB
327 select HAVE_MACH_CLKDEV
331 select PINCTRL_LANTIQ
332 select ARCH_HAS_RESET_CONTROLLER
333 select RESET_CONTROLLER
336 bool "LASAT Networks platforms"
340 select DMA_NONCOHERENT
341 select SYS_HAS_EARLY_PRINTK
344 select PCI_GT64XXX_PCI0
346 select R5000_CPU_SCACHE
347 select SYS_HAS_CPU_R5000
348 select SYS_SUPPORTS_32BIT_KERNEL
349 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
350 select SYS_SUPPORTS_LITTLE_ENDIAN
352 config MACH_LOONGSON32
353 bool "Loongson-1 family of machines"
354 select SYS_SUPPORTS_ZBOOT
356 This enables support for the Loongson-1 family of machines.
358 Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by
359 the Institute of Computing Technology (ICT), Chinese Academy of
362 config MACH_LOONGSON64
363 bool "Loongson-2/3 family of machines"
364 select SYS_SUPPORTS_ZBOOT
366 This enables the support of Loongson-2/3 family of machines.
368 Loongson-2 is a family of single-core CPUs and Loongson-3 is a
369 family of multi-core CPUs. They are both 64-bit general-purpose
370 MIPS-compatible CPUs. Loongson-2/3 are developed by the Institute
371 of Computing Technology (ICT), Chinese Academy of Sciences (CAS)
372 in the People's Republic of China. The chief architect is Professor
375 config MACH_PISTACHIO
376 bool "IMG Pistachio SoC based boards"
377 select ARCH_REQUIRE_GPIOLIB
381 select CLKSRC_MIPS_GIC
384 select DMA_MAYBE_COHERENT
388 select MIPS_CPU_SCACHE
392 select SYS_HAS_CPU_MIPS32_R2
393 select SYS_SUPPORTS_32BIT_KERNEL
394 select SYS_SUPPORTS_LITTLE_ENDIAN
395 select SYS_SUPPORTS_MIPS_CPS
396 select SYS_SUPPORTS_MULTITHREADING
397 select SYS_SUPPORTS_ZBOOT
398 select SYS_HAS_EARLY_PRINTK
399 select USE_GENERIC_EARLY_PRINTK_8250
402 This enables support for the IMG Pistachio SoC platform.
405 bool "MIPS Malta board"
406 select ARCH_MAY_HAVE_PC_FDC
412 select CLKSRC_MIPS_GIC
413 select DMA_MAYBE_COHERENT
414 select GENERIC_ISA_DMA
415 select HAVE_PCSPKR_PLATFORM
422 select MIPS_CPU_SCACHE
423 select MIPS_L1_CACHE_SHIFT_6
424 select PCI_GT64XXX_PCI0
427 select SYS_HAS_CPU_MIPS32_R1
428 select SYS_HAS_CPU_MIPS32_R2
429 select SYS_HAS_CPU_MIPS32_R3_5
430 select SYS_HAS_CPU_MIPS32_R5
431 select SYS_HAS_CPU_MIPS32_R6
432 select SYS_HAS_CPU_MIPS64_R1
433 select SYS_HAS_CPU_MIPS64_R2
434 select SYS_HAS_CPU_MIPS64_R6
435 select SYS_HAS_CPU_NEVADA
436 select SYS_HAS_CPU_RM7000
437 select SYS_SUPPORTS_32BIT_KERNEL
438 select SYS_SUPPORTS_64BIT_KERNEL
439 select SYS_SUPPORTS_BIG_ENDIAN
440 select SYS_SUPPORTS_HIGHMEM
441 select SYS_SUPPORTS_LITTLE_ENDIAN
442 select SYS_SUPPORTS_MICROMIPS
443 select SYS_SUPPORTS_MIPS_CMP
444 select SYS_SUPPORTS_MIPS_CPS
445 select SYS_SUPPORTS_MIPS16
446 select SYS_SUPPORTS_MULTITHREADING
447 select SYS_SUPPORTS_SMARTMIPS
448 select SYS_SUPPORTS_ZBOOT
450 select ZONE_DMA32 if 64BIT
452 This enables support for the MIPS Technologies Malta evaluation
456 bool "MIPS SEAD3 board"
462 select CLKSRC_MIPS_GIC
463 select CPU_MIPSR2_IRQ_VI
464 select CPU_MIPSR2_IRQ_EI
465 select DMA_NONCOHERENT
470 select SYS_HAS_CPU_MIPS32_R1
471 select SYS_HAS_CPU_MIPS32_R2
472 select SYS_HAS_CPU_MIPS64_R1
473 select SYS_HAS_EARLY_PRINTK
474 select SYS_SUPPORTS_32BIT_KERNEL
475 select SYS_SUPPORTS_64BIT_KERNEL
476 select SYS_SUPPORTS_BIG_ENDIAN
477 select SYS_SUPPORTS_LITTLE_ENDIAN
478 select SYS_SUPPORTS_SMARTMIPS
479 select SYS_SUPPORTS_MICROMIPS
480 select SYS_SUPPORTS_MIPS16
481 select USB_EHCI_BIG_ENDIAN_DESC
482 select USB_EHCI_BIG_ENDIAN_MMIO
485 This enables support for the MIPS Technologies SEAD3 evaluation
489 bool "NEC EMMA2RH Mark-eins board"
493 This enables support for the NEC Electronics Mark-eins boards.
496 bool "NEC VR4100 series based machines"
499 select SYS_HAS_CPU_VR41XX
500 select SYS_SUPPORTS_MIPS16
501 select ARCH_REQUIRE_GPIOLIB
504 bool "NXP STB220 board"
507 Support for NXP Semiconductors STB220 Development Board.
514 Support for NXP Semiconductors STB225 Development Board.
517 bool "PMC-Sierra MSP chipsets"
520 select DMA_NONCOHERENT
522 select NO_EXCEPT_FILL
524 select SYS_HAS_CPU_MIPS32_R1
525 select SYS_HAS_CPU_MIPS32_R2
526 select SYS_SUPPORTS_32BIT_KERNEL
527 select SYS_SUPPORTS_BIG_ENDIAN
528 select SYS_SUPPORTS_MIPS16
531 select SERIAL_8250_CONSOLE
532 select USB_EHCI_BIG_ENDIAN_MMIO
533 select USB_EHCI_BIG_ENDIAN_DESC
535 This adds support for the PMC-Sierra family of Multi-Service
536 Processor System-On-A-Chips. These parts include a number
537 of integrated peripherals, interfaces and DSPs in addition to
538 a variety of MIPS cores.
541 bool "Ralink based machines"
545 select DMA_NONCOHERENT
548 select SYS_HAS_CPU_MIPS32_R1
549 select SYS_HAS_CPU_MIPS32_R2
550 select SYS_SUPPORTS_32BIT_KERNEL
551 select SYS_SUPPORTS_LITTLE_ENDIAN
552 select SYS_SUPPORTS_MIPS16
553 select SYS_HAS_EARLY_PRINTK
554 select HAVE_MACH_CLKDEV
556 select ARCH_HAS_RESET_CONTROLLER
557 select RESET_CONTROLLER
560 bool "SGI IP22 (Indy/Indigo2)"
566 select DEFAULT_SGI_PARTITION
567 select DMA_NONCOHERENT
571 select IP22_CPU_SCACHE
573 select GENERIC_ISA_DMA_SUPPORT_BROKEN
575 select SGI_HAS_INDYDOG
581 select SYS_HAS_CPU_R4X00
582 select SYS_HAS_CPU_R5000
584 # Disable EARLY_PRINTK for now since it leads to overwritten prom
585 # memory during early boot on some machines.
587 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
588 # for a more details discussion
590 # select SYS_HAS_EARLY_PRINTK
591 select SYS_SUPPORTS_32BIT_KERNEL
592 select SYS_SUPPORTS_64BIT_KERNEL
593 select SYS_SUPPORTS_BIG_ENDIAN
594 select MIPS_L1_CACHE_SHIFT_7
596 This are the SGI Indy, Challenge S and Indigo2, as well as certain
597 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
598 that runs on these, say Y here.
601 bool "SGI IP27 (Origin200/2000)"
605 select DEFAULT_SGI_PARTITION
607 select SYS_HAS_EARLY_PRINTK
609 select NR_CPUS_DEFAULT_64
610 select SYS_HAS_CPU_R10000
611 select SYS_SUPPORTS_64BIT_KERNEL
612 select SYS_SUPPORTS_BIG_ENDIAN
613 select SYS_SUPPORTS_NUMA
614 select SYS_SUPPORTS_SMP
615 select MIPS_L1_CACHE_SHIFT_7
617 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
618 workstations. To compile a Linux kernel that runs on these, say Y
622 bool "SGI IP28 (Indigo2 R10k)"
628 select DEFAULT_SGI_PARTITION
629 select DMA_NONCOHERENT
630 select GENERIC_ISA_DMA_SUPPORT_BROKEN
636 select SGI_HAS_INDYDOG
642 select SYS_HAS_CPU_R10000
644 # Disable EARLY_PRINTK for now since it leads to overwritten prom
645 # memory during early boot on some machines.
647 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
648 # for a more details discussion
650 # select SYS_HAS_EARLY_PRINTK
651 select SYS_SUPPORTS_64BIT_KERNEL
652 select SYS_SUPPORTS_BIG_ENDIAN
653 select MIPS_L1_CACHE_SHIFT_7
655 This is the SGI Indigo2 with R10000 processor. To compile a Linux
656 kernel that runs on these, say Y here.
665 select DMA_NONCOHERENT
668 select R5000_CPU_SCACHE
669 select RM7000_CPU_SCACHE
670 select SYS_HAS_CPU_R5000
671 select SYS_HAS_CPU_R10000 if BROKEN
672 select SYS_HAS_CPU_RM7000
673 select SYS_HAS_CPU_NEVADA
674 select SYS_SUPPORTS_64BIT_KERNEL
675 select SYS_SUPPORTS_BIG_ENDIAN
677 If you want this kernel to run on SGI O2 workstation, say Y here.
680 bool "Sibyte BCM91120C-CRhine"
683 select SIBYTE_BCM1120
685 select SYS_HAS_CPU_SB1
686 select SYS_SUPPORTS_BIG_ENDIAN
687 select SYS_SUPPORTS_LITTLE_ENDIAN
690 bool "Sibyte BCM91120x-Carmel"
693 select SIBYTE_BCM1120
695 select SYS_HAS_CPU_SB1
696 select SYS_SUPPORTS_BIG_ENDIAN
697 select SYS_SUPPORTS_LITTLE_ENDIAN
700 bool "Sibyte BCM91125C-CRhone"
703 select SIBYTE_BCM1125
705 select SYS_HAS_CPU_SB1
706 select SYS_SUPPORTS_BIG_ENDIAN
707 select SYS_SUPPORTS_HIGHMEM
708 select SYS_SUPPORTS_LITTLE_ENDIAN
711 bool "Sibyte BCM91125E-Rhone"
714 select SIBYTE_BCM1125H
716 select SYS_HAS_CPU_SB1
717 select SYS_SUPPORTS_BIG_ENDIAN
718 select SYS_SUPPORTS_LITTLE_ENDIAN
721 bool "Sibyte BCM91250A-SWARM"
724 select HAVE_PATA_PLATFORM
727 select SYS_HAS_CPU_SB1
728 select SYS_SUPPORTS_BIG_ENDIAN
729 select SYS_SUPPORTS_HIGHMEM
730 select SYS_SUPPORTS_LITTLE_ENDIAN
731 select ZONE_DMA32 if 64BIT
733 config SIBYTE_LITTLESUR
734 bool "Sibyte BCM91250C2-LittleSur"
737 select HAVE_PATA_PLATFORM
740 select SYS_HAS_CPU_SB1
741 select SYS_SUPPORTS_BIG_ENDIAN
742 select SYS_SUPPORTS_HIGHMEM
743 select SYS_SUPPORTS_LITTLE_ENDIAN
745 config SIBYTE_SENTOSA
746 bool "Sibyte BCM91250E-Sentosa"
751 select SYS_HAS_CPU_SB1
752 select SYS_SUPPORTS_BIG_ENDIAN
753 select SYS_SUPPORTS_LITTLE_ENDIAN
756 bool "Sibyte BCM91480B-BigSur"
759 select NR_CPUS_DEFAULT_4
760 select SIBYTE_BCM1x80
762 select SYS_HAS_CPU_SB1
763 select SYS_SUPPORTS_BIG_ENDIAN
764 select SYS_SUPPORTS_HIGHMEM
765 select SYS_SUPPORTS_LITTLE_ENDIAN
766 select ZONE_DMA32 if 64BIT
769 bool "SNI RM200/300/400"
770 select FW_ARC if CPU_LITTLE_ENDIAN
771 select FW_ARC32 if CPU_LITTLE_ENDIAN
772 select FW_SNIPROM if CPU_BIG_ENDIAN
773 select ARCH_MAY_HAVE_PC_FDC
777 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
778 select DMA_NONCOHERENT
779 select GENERIC_ISA_DMA
780 select HAVE_PCSPKR_PLATFORM
787 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
788 select SYS_HAS_CPU_R4X00
789 select SYS_HAS_CPU_R5000
790 select SYS_HAS_CPU_R10000
791 select R5000_CPU_SCACHE
792 select SYS_HAS_EARLY_PRINTK
793 select SYS_SUPPORTS_32BIT_KERNEL
794 select SYS_SUPPORTS_64BIT_KERNEL
795 select SYS_SUPPORTS_BIG_ENDIAN
796 select SYS_SUPPORTS_HIGHMEM
797 select SYS_SUPPORTS_LITTLE_ENDIAN
799 The SNI RM200/300/400 are MIPS-based machines manufactured by
800 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
801 Technology and now in turn merged with Fujitsu. Say Y here to
802 support this machine type.
805 bool "Toshiba TX39 series based machines"
808 bool "Toshiba TX49 series based machines"
810 config MIKROTIK_RB532
811 bool "Mikrotik RB532 boards"
814 select DMA_NONCOHERENT
817 select SYS_HAS_CPU_MIPS32_R1
818 select SYS_SUPPORTS_32BIT_KERNEL
819 select SYS_SUPPORTS_LITTLE_ENDIAN
822 select ARCH_REQUIRE_GPIOLIB
823 select MIPS_L1_CACHE_SHIFT_4
825 Support the Mikrotik(tm) RouterBoard 532 series,
826 based on the IDT RC32434 SoC.
828 config CAVIUM_OCTEON_SOC
829 bool "Cavium Networks Octeon SoC based boards"
831 select ARCH_PHYS_ADDR_T_64BIT
833 select SYS_SUPPORTS_64BIT_KERNEL
834 select SYS_SUPPORTS_BIG_ENDIAN
836 select EDAC_ATOMIC_SCRUB
837 select SYS_SUPPORTS_LITTLE_ENDIAN
838 select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
839 select SYS_HAS_EARLY_PRINTK
840 select SYS_HAS_CPU_CAVIUM_OCTEON
845 select ARCH_REQUIRE_GPIOLIB
848 select ARCH_SPARSEMEM_ENABLE
849 select SYS_SUPPORTS_SMP
850 select NR_CPUS_DEFAULT_16
852 select MTD_COMPLEX_MAPPINGS
854 This option supports all of the Octeon reference boards from Cavium
855 Networks. It builds a kernel that dynamically determines the Octeon
856 CPU type and supports all known board reference implementations.
857 Some of the supported boards are:
864 Say Y here for most Octeon reference boards.
867 bool "Netlogic XLR/XLS based systems"
870 select SYS_HAS_CPU_XLR
871 select SYS_SUPPORTS_SMP
874 select SYS_SUPPORTS_32BIT_KERNEL
875 select SYS_SUPPORTS_64BIT_KERNEL
876 select ARCH_PHYS_ADDR_T_64BIT
877 select SYS_SUPPORTS_BIG_ENDIAN
878 select SYS_SUPPORTS_HIGHMEM
880 select NR_CPUS_DEFAULT_32
884 select ZONE_DMA32 if 64BIT
886 select SYS_HAS_EARLY_PRINTK
887 select SYS_SUPPORTS_ZBOOT
888 select SYS_SUPPORTS_ZBOOT_UART16550
890 Support for systems based on Netlogic XLR and XLS processors.
891 Say Y here if you have a XLR or XLS based board.
894 bool "Netlogic XLP based systems"
897 select SYS_HAS_CPU_XLP
898 select SYS_SUPPORTS_SMP
900 select SYS_SUPPORTS_32BIT_KERNEL
901 select SYS_SUPPORTS_64BIT_KERNEL
902 select ARCH_PHYS_ADDR_T_64BIT
903 select SYS_SUPPORTS_BIG_ENDIAN
904 select SYS_SUPPORTS_LITTLE_ENDIAN
905 select SYS_SUPPORTS_HIGHMEM
907 select NR_CPUS_DEFAULT_32
911 select ZONE_DMA32 if 64BIT
913 select SYS_HAS_EARLY_PRINTK
915 select SYS_SUPPORTS_ZBOOT
916 select SYS_SUPPORTS_ZBOOT_UART16550
918 This board is based on Netlogic XLP Processor.
919 Say Y here if you have a XLP based board.
922 bool "Para-Virtualized guest system"
926 select SYS_SUPPORTS_64BIT_KERNEL
927 select SYS_SUPPORTS_32BIT_KERNEL
928 select SYS_SUPPORTS_BIG_ENDIAN
929 select SYS_SUPPORTS_SMP
930 select NR_CPUS_DEFAULT_4
931 select SYS_HAS_EARLY_PRINTK
932 select SYS_HAS_CPU_MIPS32_R2
933 select SYS_HAS_CPU_MIPS64_R2
934 select SYS_HAS_CPU_CAVIUM_OCTEON
938 This option supports guest running under ????
942 source "arch/mips/alchemy/Kconfig"
943 source "arch/mips/ath25/Kconfig"
944 source "arch/mips/ath79/Kconfig"
945 source "arch/mips/bcm47xx/Kconfig"
946 source "arch/mips/bcm63xx/Kconfig"
947 source "arch/mips/bmips/Kconfig"
948 source "arch/mips/jazz/Kconfig"
949 source "arch/mips/jz4740/Kconfig"
950 source "arch/mips/lantiq/Kconfig"
951 source "arch/mips/lasat/Kconfig"
952 source "arch/mips/pmcs-msp71xx/Kconfig"
953 source "arch/mips/ralink/Kconfig"
954 source "arch/mips/sgi-ip27/Kconfig"
955 source "arch/mips/sibyte/Kconfig"
956 source "arch/mips/txx9/Kconfig"
957 source "arch/mips/vr41xx/Kconfig"
958 source "arch/mips/cavium-octeon/Kconfig"
959 source "arch/mips/loongson32/Kconfig"
960 source "arch/mips/loongson64/Kconfig"
961 source "arch/mips/netlogic/Kconfig"
962 source "arch/mips/paravirt/Kconfig"
966 config RWSEM_GENERIC_SPINLOCK
970 config RWSEM_XCHGADD_ALGORITHM
973 config ARCH_HAS_ILOG2_U32
977 config ARCH_HAS_ILOG2_U64
981 config GENERIC_HWEIGHT
985 config GENERIC_CALIBRATE_DELAY
989 config SCHED_OMIT_FRAME_POINTER
994 # Select some configuration options automatically based on user selections.
999 config ARCH_MAY_HAVE_PC_FDC
1036 select ARCH_REQUIRE_GPIOLIB
1042 config ARCH_DMA_ADDR_T_64BIT
1043 def_bool (HIGHMEM && ARCH_PHYS_ADDR_T_64BIT) || 64BIT
1045 config DMA_MAYBE_COHERENT
1046 select DMA_NONCOHERENT
1052 config DMA_NONCOHERENT
1054 select NEED_DMA_MAP_STATE
1056 config NEED_DMA_MAP_STATE
1059 config SYS_HAS_EARLY_PRINTK
1063 bool "Support for hot-pluggable CPUs"
1064 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
1066 Say Y here to allow turning CPUs off and on. CPUs can be
1067 controlled through /sys/devices/system/cpu.
1068 (Note: power management support will enable this option
1069 automatically on SMP systems. )
1070 Say N if you want to disable CPU hotplug.
1072 config SYS_SUPPORTS_HOTPLUG_CPU
1079 config MIPS_BONITO64
1094 config NO_IOPORT_MAP
1100 config GENERIC_ISA_DMA
1102 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1105 config GENERIC_ISA_DMA_SUPPORT_BROKEN
1107 select GENERIC_ISA_DMA
1112 config HOLES_IN_ZONE
1116 # Endianness selection. Sufficiently obscure so many users don't know what to
1117 # answer,so we try hard to limit the available choices. Also the use of a
1118 # choice statement should be more obvious to the user.
1121 prompt "Endianness selection"
1123 Some MIPS machines can be configured for either little or big endian
1124 byte order. These modes require different kernels and a different
1125 Linux distribution. In general there is one preferred byteorder for a
1126 particular system but some systems are just as commonly used in the
1127 one or the other endianness.
1129 config CPU_BIG_ENDIAN
1131 depends on SYS_SUPPORTS_BIG_ENDIAN
1133 config CPU_LITTLE_ENDIAN
1134 bool "Little endian"
1135 depends on SYS_SUPPORTS_LITTLE_ENDIAN
1142 config SYS_SUPPORTS_APM_EMULATION
1145 config SYS_SUPPORTS_BIG_ENDIAN
1148 config SYS_SUPPORTS_LITTLE_ENDIAN
1151 config SYS_SUPPORTS_HUGETLBFS
1153 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1156 config MIPS_HUGE_TLB_SUPPORT
1157 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1174 config PCI_GT64XXX_PCI0
1177 config NO_EXCEPT_FILL
1184 select DMA_NONCOHERENT
1186 select SWAP_IO_SPACE
1187 select SYS_HAS_CPU_R5500
1188 select SYS_SUPPORTS_32BIT_KERNEL
1189 select SYS_SUPPORTS_64BIT_KERNEL
1190 select SYS_SUPPORTS_BIG_ENDIAN
1197 select DMA_NONCOHERENT
1198 select SYS_HAS_CPU_MIPS32_R2
1199 select SYS_SUPPORTS_32BIT_KERNEL
1200 select SYS_SUPPORTS_LITTLE_ENDIAN
1201 select SYS_SUPPORTS_BIG_ENDIAN
1202 select SYS_SUPPORTS_MIPS16
1203 select CPU_MIPSR2_IRQ_VI
1212 config SWAP_IO_SPACE
1215 config SGI_HAS_INDYDOG
1227 config SGI_HAS_ZILOG
1230 config SGI_HAS_I8042
1233 config DEFAULT_SGI_PARTITION
1245 config MIPS_L1_CACHE_SHIFT_4
1248 config MIPS_L1_CACHE_SHIFT_5
1251 config MIPS_L1_CACHE_SHIFT_6
1254 config MIPS_L1_CACHE_SHIFT_7
1257 config MIPS_L1_CACHE_SHIFT
1259 default "7" if MIPS_L1_CACHE_SHIFT_7
1260 default "6" if MIPS_L1_CACHE_SHIFT_6
1261 default "5" if MIPS_L1_CACHE_SHIFT_5
1262 default "4" if MIPS_L1_CACHE_SHIFT_4
1265 config HAVE_STD_PC_SERIAL_PORT
1269 bool "ARC console support"
1270 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1274 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1279 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1288 menu "CPU selection"
1294 config CPU_LOONGSON3
1295 bool "Loongson 3 CPU"
1296 depends on SYS_HAS_CPU_LOONGSON3
1297 select CPU_SUPPORTS_64BIT_KERNEL
1298 select CPU_SUPPORTS_HIGHMEM
1299 select CPU_SUPPORTS_HUGEPAGES
1300 select WEAK_ORDERING
1301 select WEAK_REORDERING_BEYOND_LLSC
1302 select ARCH_REQUIRE_GPIOLIB
1304 The Loongson 3 processor implements the MIPS64R2 instruction
1305 set with many extensions.
1307 config CPU_LOONGSON2E
1309 depends on SYS_HAS_CPU_LOONGSON2E
1310 select CPU_LOONGSON2
1312 The Loongson 2E processor implements the MIPS III instruction set
1313 with many extensions.
1315 It has an internal FPGA northbridge, which is compatible to
1318 config CPU_LOONGSON2F
1320 depends on SYS_HAS_CPU_LOONGSON2F
1321 select CPU_LOONGSON2
1322 select ARCH_REQUIRE_GPIOLIB
1324 The Loongson 2F processor implements the MIPS III instruction set
1325 with many extensions.
1327 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1328 have a similar programming interface with FPGA northbridge used in
1331 config CPU_LOONGSON1B
1333 depends on SYS_HAS_CPU_LOONGSON1B
1334 select CPU_LOONGSON1
1336 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1337 release 2 instruction set.
1339 config CPU_MIPS32_R1
1340 bool "MIPS32 Release 1"
1341 depends on SYS_HAS_CPU_MIPS32_R1
1342 select CPU_HAS_PREFETCH
1343 select CPU_SUPPORTS_32BIT_KERNEL
1344 select CPU_SUPPORTS_HIGHMEM
1346 Choose this option to build a kernel for release 1 or later of the
1347 MIPS32 architecture. Most modern embedded systems with a 32-bit
1348 MIPS processor are based on a MIPS32 processor. If you know the
1349 specific type of processor in your system, choose those that one
1350 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1351 Release 2 of the MIPS32 architecture is available since several
1352 years so chances are you even have a MIPS32 Release 2 processor
1353 in which case you should choose CPU_MIPS32_R2 instead for better
1356 config CPU_MIPS32_R2
1357 bool "MIPS32 Release 2"
1358 depends on SYS_HAS_CPU_MIPS32_R2
1359 select CPU_HAS_PREFETCH
1360 select CPU_SUPPORTS_32BIT_KERNEL
1361 select CPU_SUPPORTS_HIGHMEM
1362 select CPU_SUPPORTS_MSA
1365 Choose this option to build a kernel for release 2 or later of the
1366 MIPS32 architecture. Most modern embedded systems with a 32-bit
1367 MIPS processor are based on a MIPS32 processor. If you know the
1368 specific type of processor in your system, choose those that one
1369 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1371 config CPU_MIPS32_R6
1372 bool "MIPS32 Release 6 (EXPERIMENTAL)"
1373 depends on SYS_HAS_CPU_MIPS32_R6
1374 select CPU_HAS_PREFETCH
1375 select CPU_SUPPORTS_32BIT_KERNEL
1376 select CPU_SUPPORTS_HIGHMEM
1377 select CPU_SUPPORTS_MSA
1380 select MIPS_O32_FP64_SUPPORT
1382 Choose this option to build a kernel for release 6 or later of the
1383 MIPS32 architecture. New MIPS processors, starting with the Warrior
1384 family, are based on a MIPS32r6 processor. If you own an older
1385 processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1387 config CPU_MIPS64_R1
1388 bool "MIPS64 Release 1"
1389 depends on SYS_HAS_CPU_MIPS64_R1
1390 select CPU_HAS_PREFETCH
1391 select CPU_SUPPORTS_32BIT_KERNEL
1392 select CPU_SUPPORTS_64BIT_KERNEL
1393 select CPU_SUPPORTS_HIGHMEM
1394 select CPU_SUPPORTS_HUGEPAGES
1396 Choose this option to build a kernel for release 1 or later of the
1397 MIPS64 architecture. Many modern embedded systems with a 64-bit
1398 MIPS processor are based on a MIPS64 processor. If you know the
1399 specific type of processor in your system, choose those that one
1400 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1401 Release 2 of the MIPS64 architecture is available since several
1402 years so chances are you even have a MIPS64 Release 2 processor
1403 in which case you should choose CPU_MIPS64_R2 instead for better
1406 config CPU_MIPS64_R2
1407 bool "MIPS64 Release 2"
1408 depends on SYS_HAS_CPU_MIPS64_R2
1409 select CPU_HAS_PREFETCH
1410 select CPU_SUPPORTS_32BIT_KERNEL
1411 select CPU_SUPPORTS_64BIT_KERNEL
1412 select CPU_SUPPORTS_HIGHMEM
1413 select CPU_SUPPORTS_HUGEPAGES
1414 select CPU_SUPPORTS_MSA
1416 Choose this option to build a kernel for release 2 or later of the
1417 MIPS64 architecture. Many modern embedded systems with a 64-bit
1418 MIPS processor are based on a MIPS64 processor. If you know the
1419 specific type of processor in your system, choose those that one
1420 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1422 config CPU_MIPS64_R6
1423 bool "MIPS64 Release 6 (EXPERIMENTAL)"
1424 depends on SYS_HAS_CPU_MIPS64_R6
1425 select CPU_HAS_PREFETCH
1426 select CPU_SUPPORTS_32BIT_KERNEL
1427 select CPU_SUPPORTS_64BIT_KERNEL
1428 select CPU_SUPPORTS_HIGHMEM
1429 select CPU_SUPPORTS_MSA
1432 Choose this option to build a kernel for release 6 or later of the
1433 MIPS64 architecture. New MIPS processors, starting with the Warrior
1434 family, are based on a MIPS64r6 processor. If you own an older
1435 processor, you probably need to select MIPS64r1 or MIPS64r2 instead.
1439 depends on SYS_HAS_CPU_R3000
1441 select CPU_SUPPORTS_32BIT_KERNEL
1442 select CPU_SUPPORTS_HIGHMEM
1444 Please make sure to pick the right CPU type. Linux/MIPS is not
1445 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1446 *not* work on R4000 machines and vice versa. However, since most
1447 of the supported machines have an R4000 (or similar) CPU, R4x00
1448 might be a safe bet. If the resulting kernel does not work,
1449 try to recompile with R3000.
1453 depends on SYS_HAS_CPU_TX39XX
1454 select CPU_SUPPORTS_32BIT_KERNEL
1458 depends on SYS_HAS_CPU_VR41XX
1459 select CPU_SUPPORTS_32BIT_KERNEL
1460 select CPU_SUPPORTS_64BIT_KERNEL
1462 The options selects support for the NEC VR4100 series of processors.
1463 Only choose this option if you have one of these processors as a
1464 kernel built with this option will not run on any other type of
1465 processor or vice versa.
1469 depends on SYS_HAS_CPU_R4300
1470 select CPU_SUPPORTS_32BIT_KERNEL
1471 select CPU_SUPPORTS_64BIT_KERNEL
1473 MIPS Technologies R4300-series processors.
1477 depends on SYS_HAS_CPU_R4X00
1478 select CPU_SUPPORTS_32BIT_KERNEL
1479 select CPU_SUPPORTS_64BIT_KERNEL
1480 select CPU_SUPPORTS_HUGEPAGES
1482 MIPS Technologies R4000-series processors other than 4300, including
1483 the R4000, R4400, R4600, and 4700.
1487 depends on SYS_HAS_CPU_TX49XX
1488 select CPU_HAS_PREFETCH
1489 select CPU_SUPPORTS_32BIT_KERNEL
1490 select CPU_SUPPORTS_64BIT_KERNEL
1491 select CPU_SUPPORTS_HUGEPAGES
1495 depends on SYS_HAS_CPU_R5000
1496 select CPU_SUPPORTS_32BIT_KERNEL
1497 select CPU_SUPPORTS_64BIT_KERNEL
1498 select CPU_SUPPORTS_HUGEPAGES
1500 MIPS Technologies R5000-series processors other than the Nevada.
1504 depends on SYS_HAS_CPU_R5432
1505 select CPU_SUPPORTS_32BIT_KERNEL
1506 select CPU_SUPPORTS_64BIT_KERNEL
1507 select CPU_SUPPORTS_HUGEPAGES
1511 depends on SYS_HAS_CPU_R5500
1512 select CPU_SUPPORTS_32BIT_KERNEL
1513 select CPU_SUPPORTS_64BIT_KERNEL
1514 select CPU_SUPPORTS_HUGEPAGES
1516 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1521 depends on SYS_HAS_CPU_R6000
1522 select CPU_SUPPORTS_32BIT_KERNEL
1524 MIPS Technologies R6000 and R6000A series processors. Note these
1525 processors are extremely rare and the support for them is incomplete.
1529 depends on SYS_HAS_CPU_NEVADA
1530 select CPU_SUPPORTS_32BIT_KERNEL
1531 select CPU_SUPPORTS_64BIT_KERNEL
1532 select CPU_SUPPORTS_HUGEPAGES
1534 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1538 depends on SYS_HAS_CPU_R8000
1539 select CPU_HAS_PREFETCH
1540 select CPU_SUPPORTS_64BIT_KERNEL
1542 MIPS Technologies R8000 processors. Note these processors are
1543 uncommon and the support for them is incomplete.
1547 depends on SYS_HAS_CPU_R10000
1548 select CPU_HAS_PREFETCH
1549 select CPU_SUPPORTS_32BIT_KERNEL
1550 select CPU_SUPPORTS_64BIT_KERNEL
1551 select CPU_SUPPORTS_HIGHMEM
1552 select CPU_SUPPORTS_HUGEPAGES
1554 MIPS Technologies R10000-series processors.
1558 depends on SYS_HAS_CPU_RM7000
1559 select CPU_HAS_PREFETCH
1560 select CPU_SUPPORTS_32BIT_KERNEL
1561 select CPU_SUPPORTS_64BIT_KERNEL
1562 select CPU_SUPPORTS_HIGHMEM
1563 select CPU_SUPPORTS_HUGEPAGES
1567 depends on SYS_HAS_CPU_SB1
1568 select CPU_SUPPORTS_32BIT_KERNEL
1569 select CPU_SUPPORTS_64BIT_KERNEL
1570 select CPU_SUPPORTS_HIGHMEM
1571 select CPU_SUPPORTS_HUGEPAGES
1572 select WEAK_ORDERING
1574 config CPU_CAVIUM_OCTEON
1575 bool "Cavium Octeon processor"
1576 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1577 select CPU_HAS_PREFETCH
1578 select CPU_SUPPORTS_64BIT_KERNEL
1579 select WEAK_ORDERING
1580 select CPU_SUPPORTS_HIGHMEM
1581 select CPU_SUPPORTS_HUGEPAGES
1582 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1583 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1584 select MIPS_L1_CACHE_SHIFT_7
1586 The Cavium Octeon processor is a highly integrated chip containing
1587 many ethernet hardware widgets for networking tasks. The processor
1588 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1589 Full details can be found at http://www.caviumnetworks.com.
1592 bool "Broadcom BMIPS"
1593 depends on SYS_HAS_CPU_BMIPS
1595 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1596 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1597 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1598 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1599 select CPU_SUPPORTS_32BIT_KERNEL
1600 select DMA_NONCOHERENT
1602 select SWAP_IO_SPACE
1603 select WEAK_ORDERING
1604 select CPU_SUPPORTS_HIGHMEM
1605 select CPU_HAS_PREFETCH
1607 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1610 bool "Netlogic XLR SoC"
1611 depends on SYS_HAS_CPU_XLR
1612 select CPU_SUPPORTS_32BIT_KERNEL
1613 select CPU_SUPPORTS_64BIT_KERNEL
1614 select CPU_SUPPORTS_HIGHMEM
1615 select CPU_SUPPORTS_HUGEPAGES
1616 select WEAK_ORDERING
1617 select WEAK_REORDERING_BEYOND_LLSC
1619 Netlogic Microsystems XLR/XLS processors.
1622 bool "Netlogic XLP SoC"
1623 depends on SYS_HAS_CPU_XLP
1624 select CPU_SUPPORTS_32BIT_KERNEL
1625 select CPU_SUPPORTS_64BIT_KERNEL
1626 select CPU_SUPPORTS_HIGHMEM
1627 select WEAK_ORDERING
1628 select WEAK_REORDERING_BEYOND_LLSC
1629 select CPU_HAS_PREFETCH
1631 select CPU_SUPPORTS_HUGEPAGES
1633 Netlogic Microsystems XLP processors.
1636 config CPU_MIPS32_3_5_FEATURES
1637 bool "MIPS32 Release 3.5 Features"
1638 depends on SYS_HAS_CPU_MIPS32_R3_5
1639 depends on CPU_MIPS32_R2 || CPU_MIPS32_R6
1641 Choose this option to build a kernel for release 2 or later of the
1642 MIPS32 architecture including features from the 3.5 release such as
1643 support for Enhanced Virtual Addressing (EVA).
1645 config CPU_MIPS32_3_5_EVA
1646 bool "Enhanced Virtual Addressing (EVA)"
1647 depends on CPU_MIPS32_3_5_FEATURES
1651 Choose this option if you want to enable the Enhanced Virtual
1652 Addressing (EVA) on your MIPS32 core (such as proAptiv).
1653 One of its primary benefits is an increase in the maximum size
1654 of lowmem (up to 3GB). If unsure, say 'N' here.
1656 config CPU_MIPS32_R5_FEATURES
1657 bool "MIPS32 Release 5 Features"
1658 depends on SYS_HAS_CPU_MIPS32_R5
1659 depends on CPU_MIPS32_R2
1661 Choose this option to build a kernel for release 2 or later of the
1662 MIPS32 architecture including features from release 5 such as
1663 support for Extended Physical Addressing (XPA).
1665 config CPU_MIPS32_R5_XPA
1666 bool "Extended Physical Addressing (XPA)"
1667 depends on CPU_MIPS32_R5_FEATURES
1669 depends on !PAGE_SIZE_4KB
1670 depends on SYS_SUPPORTS_HIGHMEM
1673 select ARCH_PHYS_ADDR_T_64BIT
1676 Choose this option if you want to enable the Extended Physical
1677 Addressing (XPA) on your MIPS32 core (such as P5600 series). The
1678 benefit is to increase physical addressing equal to or greater
1679 than 40 bits. Note that this has the side effect of turning on
1680 64-bit addressing which in turn makes the PTEs 64-bit in size.
1681 If unsure, say 'N' here.
1684 config CPU_NOP_WORKAROUNDS
1687 config CPU_JUMP_WORKAROUNDS
1690 config CPU_LOONGSON2F_WORKAROUNDS
1691 bool "Loongson 2F Workarounds"
1693 select CPU_NOP_WORKAROUNDS
1694 select CPU_JUMP_WORKAROUNDS
1696 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1697 require workarounds. Without workarounds the system may hang
1698 unexpectedly. For more information please refer to the gas
1699 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1701 Loongson 2F03 and later have fixed these issues and no workarounds
1702 are needed. The workarounds have no significant side effect on them
1703 but may decrease the performance of the system so this option should
1704 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1707 If unsure, please say Y.
1708 endif # CPU_LOONGSON2F
1710 config SYS_SUPPORTS_ZBOOT
1712 select HAVE_KERNEL_GZIP
1713 select HAVE_KERNEL_BZIP2
1714 select HAVE_KERNEL_LZ4
1715 select HAVE_KERNEL_LZMA
1716 select HAVE_KERNEL_LZO
1717 select HAVE_KERNEL_XZ
1719 config SYS_SUPPORTS_ZBOOT_UART16550
1721 select SYS_SUPPORTS_ZBOOT
1723 config CPU_LOONGSON2
1725 select CPU_SUPPORTS_32BIT_KERNEL
1726 select CPU_SUPPORTS_64BIT_KERNEL
1727 select CPU_SUPPORTS_HIGHMEM
1728 select CPU_SUPPORTS_HUGEPAGES
1730 config CPU_LOONGSON1
1734 select CPU_HAS_PREFETCH
1735 select CPU_SUPPORTS_32BIT_KERNEL
1736 select CPU_SUPPORTS_HIGHMEM
1737 select CPU_SUPPORTS_CPUFREQ
1739 config CPU_BMIPS32_3300
1740 select SMP_UP if SMP
1743 config CPU_BMIPS4350
1745 select SYS_SUPPORTS_SMP
1746 select SYS_SUPPORTS_HOTPLUG_CPU
1748 config CPU_BMIPS4380
1750 select MIPS_L1_CACHE_SHIFT_6
1751 select SYS_SUPPORTS_SMP
1752 select SYS_SUPPORTS_HOTPLUG_CPU
1754 config CPU_BMIPS5000
1756 select MIPS_CPU_SCACHE
1757 select MIPS_L1_CACHE_SHIFT_7
1758 select SYS_SUPPORTS_SMP
1759 select SYS_SUPPORTS_HOTPLUG_CPU
1761 config SYS_HAS_CPU_LOONGSON3
1763 select CPU_SUPPORTS_CPUFREQ
1765 config SYS_HAS_CPU_LOONGSON2E
1768 config SYS_HAS_CPU_LOONGSON2F
1770 select CPU_SUPPORTS_CPUFREQ
1771 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1772 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1774 config SYS_HAS_CPU_LOONGSON1B
1777 config SYS_HAS_CPU_MIPS32_R1
1780 config SYS_HAS_CPU_MIPS32_R2
1783 config SYS_HAS_CPU_MIPS32_R3_5
1786 config SYS_HAS_CPU_MIPS32_R5
1789 config SYS_HAS_CPU_MIPS32_R6
1792 config SYS_HAS_CPU_MIPS64_R1
1795 config SYS_HAS_CPU_MIPS64_R2
1798 config SYS_HAS_CPU_MIPS64_R6
1801 config SYS_HAS_CPU_R3000
1804 config SYS_HAS_CPU_TX39XX
1807 config SYS_HAS_CPU_VR41XX
1810 config SYS_HAS_CPU_R4300
1813 config SYS_HAS_CPU_R4X00
1816 config SYS_HAS_CPU_TX49XX
1819 config SYS_HAS_CPU_R5000
1822 config SYS_HAS_CPU_R5432
1825 config SYS_HAS_CPU_R5500
1828 config SYS_HAS_CPU_R6000
1831 config SYS_HAS_CPU_NEVADA
1834 config SYS_HAS_CPU_R8000
1837 config SYS_HAS_CPU_R10000
1840 config SYS_HAS_CPU_RM7000
1843 config SYS_HAS_CPU_SB1
1846 config SYS_HAS_CPU_CAVIUM_OCTEON
1849 config SYS_HAS_CPU_BMIPS
1852 config SYS_HAS_CPU_BMIPS32_3300
1854 select SYS_HAS_CPU_BMIPS
1856 config SYS_HAS_CPU_BMIPS4350
1858 select SYS_HAS_CPU_BMIPS
1860 config SYS_HAS_CPU_BMIPS4380
1862 select SYS_HAS_CPU_BMIPS
1864 config SYS_HAS_CPU_BMIPS5000
1866 select SYS_HAS_CPU_BMIPS
1868 config SYS_HAS_CPU_XLR
1871 config SYS_HAS_CPU_XLP
1874 config MIPS_MALTA_PM
1875 depends on MIPS_MALTA
1881 # CPU may reorder R->R, R->W, W->R, W->W
1882 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1884 config WEAK_ORDERING
1888 # CPU may reorder reads and writes beyond LL/SC
1889 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1891 config WEAK_REORDERING_BEYOND_LLSC
1896 # These two indicate any level of the MIPS32 and MIPS64 architecture
1900 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6
1904 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6
1907 # These two indicate the revision of the architecture, either Release 1 or Release 2
1911 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1915 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1920 default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
1929 config SYS_SUPPORTS_32BIT_KERNEL
1931 config SYS_SUPPORTS_64BIT_KERNEL
1933 config CPU_SUPPORTS_32BIT_KERNEL
1935 config CPU_SUPPORTS_64BIT_KERNEL
1937 config CPU_SUPPORTS_CPUFREQ
1939 config CPU_SUPPORTS_ADDRWINCFG
1941 config CPU_SUPPORTS_HUGEPAGES
1943 config CPU_SUPPORTS_UNCACHED_ACCELERATED
1945 config MIPS_PGD_C0_CONTEXT
1947 default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
1950 # Set to y for ptrace access to watch registers.
1952 config HARDWARE_WATCHPOINTS
1954 default y if CPU_MIPSR1 || CPU_MIPSR2
1959 prompt "Kernel code model"
1961 You should only select this option if you have a workload that
1962 actually benefits from 64-bit processing or if your machine has
1963 large memory. You will only be presented a single option in this
1964 menu if your system does not support both 32-bit and 64-bit kernels.
1967 bool "32-bit kernel"
1968 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1971 Select this option if you want to build a 32-bit kernel.
1973 bool "64-bit kernel"
1974 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1976 Select this option if you want to build a 64-bit kernel.
1981 bool "KVM Guest Kernel"
1982 depends on BROKEN_ON_SMP
1984 Select this option if building a guest kernel for KVM (Trap & Emulate) mode
1986 config KVM_GUEST_TIMER_FREQ
1987 int "Count/Compare Timer Frequency (MHz)"
1988 depends on KVM_GUEST
1991 Set this to non-zero if building a guest kernel for KVM to skip RTC
1992 emulation when determining guest CPU Frequency. Instead, the guest's
1993 timer frequency is specified directly.
1996 prompt "Kernel page size"
1997 default PAGE_SIZE_4KB
1999 config PAGE_SIZE_4KB
2001 depends on !CPU_LOONGSON2 && !CPU_LOONGSON3
2003 This option select the standard 4kB Linux page size. On some
2004 R3000-family processors this is the only available page size. Using
2005 4kB page size will minimize memory consumption and is therefore
2006 recommended for low memory systems.
2008 config PAGE_SIZE_8KB
2010 depends on CPU_R8000 || CPU_CAVIUM_OCTEON
2012 Using 8kB page size will result in higher performance kernel at
2013 the price of higher memory consumption. This option is available
2014 only on R8000 and cnMIPS processors. Note that you will need a
2015 suitable Linux distribution to support this.
2017 config PAGE_SIZE_16KB
2019 depends on !CPU_R3000 && !CPU_TX39XX
2021 Using 16kB page size will result in higher performance kernel at
2022 the price of higher memory consumption. This option is available on
2023 all non-R3000 family processors. Note that you will need a suitable
2024 Linux distribution to support this.
2026 config PAGE_SIZE_32KB
2028 depends on CPU_CAVIUM_OCTEON
2030 Using 32kB page size will result in higher performance kernel at
2031 the price of higher memory consumption. This option is available
2032 only on cnMIPS cores. Note that you will need a suitable Linux
2033 distribution to support this.
2035 config PAGE_SIZE_64KB
2037 depends on !CPU_R3000 && !CPU_TX39XX
2039 Using 64kB page size will result in higher performance kernel at
2040 the price of higher memory consumption. This option is available on
2041 all non-R3000 family processor. Not that at the time of this
2042 writing this option is still high experimental.
2046 config FORCE_MAX_ZONEORDER
2047 int "Maximum zone order"
2048 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2049 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2050 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2051 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2052 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2053 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2057 The kernel memory allocator divides physically contiguous memory
2058 blocks into "zones", where each zone is a power of two number of
2059 pages. This option selects the largest power of two that the kernel
2060 keeps in the memory allocator. If you need to allocate very large
2061 blocks of physically contiguous memory, then you may need to
2062 increase this value.
2064 This config option is actually maximum order plus one. For example,
2065 a value of 11 means that the largest free memory block is 2^10 pages.
2067 The page size is not necessarily 4KB. Keep this in mind
2068 when choosing a value for this option.
2073 config IP22_CPU_SCACHE
2078 # Support for a MIPS32 / MIPS64 style S-caches
2080 config MIPS_CPU_SCACHE
2084 config R5000_CPU_SCACHE
2088 config RM7000_CPU_SCACHE
2092 config SIBYTE_DMA_PAGEOPS
2093 bool "Use DMA to clear/copy pages"
2096 Instead of using the CPU to zero and copy pages, use a Data Mover
2097 channel. These DMA channels are otherwise unused by the standard
2098 SiByte Linux port. Seems to give a small performance benefit.
2100 config CPU_HAS_PREFETCH
2103 config CPU_GENERIC_DUMP_TLB
2105 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
2109 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
2111 config CPU_R4K_CACHE_TLB
2113 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
2116 bool "MIPS MT SMP support (1 TC on each available VPE)"
2117 depends on SYS_SUPPORTS_MULTITHREADING
2118 select CPU_MIPSR2_IRQ_VI
2119 select CPU_MIPSR2_IRQ_EI
2125 select SYS_SUPPORTS_SMP
2126 select SYS_SUPPORTS_SCHED_SMT
2127 select MIPS_PERF_SHARED_TC_COUNTERS
2129 This is a kernel model which is known as SMVP. This is supported
2130 on cores with the MT ASE and uses the available VPEs to implement
2131 virtual processors which supports SMP. This is equivalent to the
2132 Intel Hyperthreading feature. For further information go to
2133 <http://www.imgtec.com/mips/mips-multithreading.asp>.
2139 bool "SMT (multithreading) scheduler support"
2140 depends on SYS_SUPPORTS_SCHED_SMT
2143 SMT scheduler support improves the CPU scheduler's decision making
2144 when dealing with MIPS MT enabled cores at a cost of slightly
2145 increased overhead in some places. If unsure say N here.
2147 config SYS_SUPPORTS_SCHED_SMT
2150 config SYS_SUPPORTS_MULTITHREADING
2153 config MIPS_MT_FPAFF
2154 bool "Dynamic FPU affinity for FP-intensive threads"
2156 depends on MIPS_MT_SMP
2158 config MIPSR2_TO_R6_EMULATOR
2159 bool "MIPS R2-to-R6 emulator"
2160 depends on CPU_MIPSR6 && !SMP
2163 Choose this option if you want to run non-R6 MIPS userland code.
2164 Even if you say 'Y' here, the emulator will still be disabled by
2165 default. You can enable it using the 'mipsr2emu' kernel option.
2166 The only reason this is a build-time option is to save ~14K from the
2168 comment "MIPS R2-to-R6 emulator is only available for UP kernels"
2169 depends on SMP && CPU_MIPSR6
2171 config MIPS_VPE_LOADER
2172 bool "VPE loader support."
2173 depends on SYS_SUPPORTS_MULTITHREADING && MODULES
2174 select CPU_MIPSR2_IRQ_VI
2175 select CPU_MIPSR2_IRQ_EI
2178 Includes a loader for loading an elf relocatable object
2179 onto another VPE and running it.
2181 config MIPS_VPE_LOADER_CMP
2184 depends on MIPS_VPE_LOADER && MIPS_CMP
2186 config MIPS_VPE_LOADER_MT
2189 depends on MIPS_VPE_LOADER && !MIPS_CMP
2191 config MIPS_VPE_LOADER_TOM
2192 bool "Load VPE program into memory hidden from linux"
2193 depends on MIPS_VPE_LOADER
2196 The loader can use memory that is present but has been hidden from
2197 Linux using the kernel command line option "mem=xxMB". It's up to
2198 you to ensure the amount you put in the option and the space your
2199 program requires is less or equal to the amount physically present.
2201 config MIPS_VPE_APSP_API
2202 bool "Enable support for AP/SP API (RTLX)"
2203 depends on MIPS_VPE_LOADER
2206 config MIPS_VPE_APSP_API_CMP
2209 depends on MIPS_VPE_APSP_API && MIPS_CMP
2211 config MIPS_VPE_APSP_API_MT
2214 depends on MIPS_VPE_APSP_API && !MIPS_CMP
2217 bool "MIPS CMP framework support (DEPRECATED)"
2218 depends on SYS_SUPPORTS_MIPS_CMP
2222 select SYS_SUPPORTS_SMP
2223 select WEAK_ORDERING
2226 Select this if you are using a bootloader which implements the "CMP
2227 framework" protocol (ie. YAMON) and want your kernel to make use of
2228 its ability to start secondary CPUs.
2230 Unless you have a specific need, you should use CONFIG_MIPS_CPS
2234 bool "MIPS Coherent Processing System support"
2235 depends on SYS_SUPPORTS_MIPS_CPS
2238 select MIPS_CPS_PM if HOTPLUG_CPU
2241 select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2242 select SYS_SUPPORTS_HOTPLUG_CPU
2243 select SYS_SUPPORTS_SMP
2244 select WEAK_ORDERING
2246 Select this if you wish to run an SMP kernel across multiple cores
2247 within a MIPS Coherent Processing System. When this option is
2248 enabled the kernel will probe for other cores and boot them with
2249 no external assistance. It is safe to enable this when hardware
2250 support is unavailable.
2266 config SB1_PASS_1_WORKAROUNDS
2268 depends on CPU_SB1_PASS_1
2271 config SB1_PASS_2_WORKAROUNDS
2273 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2276 config SB1_PASS_2_1_WORKAROUNDS
2278 depends on CPU_SB1 && CPU_SB1_PASS_2
2282 config ARCH_PHYS_ADDR_T_64BIT
2286 prompt "SmartMIPS or microMIPS ASE support"
2288 config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
2291 Select this if you want neither microMIPS nor SmartMIPS support
2293 config CPU_HAS_SMARTMIPS
2294 depends on SYS_SUPPORTS_SMARTMIPS
2297 SmartMIPS is a extension of the MIPS32 architecture aimed at
2298 increased security at both hardware and software level for
2299 smartcards. Enabling this option will allow proper use of the
2300 SmartMIPS instructions by Linux applications. However a kernel with
2301 this option will not work on a MIPS core without SmartMIPS core. If
2302 you don't know you probably don't have SmartMIPS and should say N
2305 config CPU_MICROMIPS
2306 depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2309 When this option is enabled the kernel will be built using the
2315 bool "Support for the MIPS SIMD Architecture (EXPERIMENTAL)"
2316 depends on CPU_SUPPORTS_MSA
2317 depends on 64BIT || MIPS_O32_FP64_SUPPORT
2319 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2320 and a set of SIMD instructions to operate on them. When this option
2321 is enabled the kernel will support allocating & switching MSA
2322 vector register contexts. If you know that your kernel will only be
2323 running on CPUs which do not support MSA or that your userland will
2324 not be making use of it then you may wish to say N here to reduce
2325 the size & complexity of your kernel.
2336 # Vectored interrupt mode is an R2 feature
2338 config CPU_MIPSR2_IRQ_VI
2342 # Extended interrupt mode is an R2 feature
2344 config CPU_MIPSR2_IRQ_EI
2349 depends on !CPU_R3000
2355 config CPU_DADDI_WORKAROUNDS
2358 config CPU_R4000_WORKAROUNDS
2360 select CPU_R4400_WORKAROUNDS
2362 config CPU_R4400_WORKAROUNDS
2366 # - Highmem only makes sense for the 32-bit kernel.
2367 # - The current highmem code will only work properly on physically indexed
2368 # caches such as R3000, SB1, R7000 or those that look like they're virtually
2369 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2370 # moment we protect the user and offer the highmem option only on machines
2371 # where it's known to be safe. This will not offer highmem on a few systems
2372 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2373 # indexed CPUs but we're playing safe.
2374 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2375 # know they might have memory configurations that could make use of highmem
2379 bool "High Memory Support"
2380 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2382 config CPU_SUPPORTS_HIGHMEM
2385 config SYS_SUPPORTS_HIGHMEM
2388 config SYS_SUPPORTS_SMARTMIPS
2391 config SYS_SUPPORTS_MICROMIPS
2394 config SYS_SUPPORTS_MIPS16
2397 This option must be set if a kernel might be executed on a MIPS16-
2398 enabled CPU even if MIPS16 is not actually being used. In other
2399 words, it makes the kernel MIPS16-tolerant.
2401 config CPU_SUPPORTS_MSA
2404 config ARCH_FLATMEM_ENABLE
2406 depends on !NUMA && !CPU_LOONGSON2
2408 config ARCH_DISCONTIGMEM_ENABLE
2410 default y if SGI_IP27
2412 Say Y to support efficient handling of discontiguous physical memory,
2413 for architectures which are either NUMA (Non-Uniform Memory Access)
2414 or have huge holes in the physical address space for other reasons.
2415 See <file:Documentation/vm/numa> for more.
2417 config ARCH_SPARSEMEM_ENABLE
2419 select SPARSEMEM_STATIC
2423 depends on SYS_SUPPORTS_NUMA
2425 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2426 Access). This option improves performance on systems with more
2427 than two nodes; on two node systems it is generally better to
2428 leave it disabled; on single node systems disable this option
2431 config SYS_SUPPORTS_NUMA
2437 depends on NEED_MULTIPLE_NODES
2439 config HW_PERF_EVENTS
2440 bool "Enable hardware performance counter support for perf events"
2441 depends on PERF_EVENTS && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3)
2444 Enable hardware performance counter support for perf events. If
2445 disabled, perf events will use software events only.
2450 bool "Multi-Processing support"
2451 depends on SYS_SUPPORTS_SMP
2453 This enables support for systems with more than one CPU. If you have
2454 a system with only one CPU, say N. If you have a system with more
2455 than one CPU, say Y.
2457 If you say N here, the kernel will run on uni- and multiprocessor
2458 machines, but will use only one CPU of a multiprocessor machine. If
2459 you say Y here, the kernel will run on many, but not all,
2460 uniprocessor machines. On a uniprocessor machine, the kernel
2461 will run faster if you say N here.
2463 People using multiprocessor machines who say Y here should also say
2464 Y to "Enhanced Real Time Clock Support", below.
2466 See also the SMP-HOWTO available at
2467 <http://www.tldp.org/docs.html#howto>.
2469 If you don't know what to do here, say N.
2474 config SYS_SUPPORTS_MIPS_CMP
2477 config SYS_SUPPORTS_MIPS_CPS
2480 config SYS_SUPPORTS_SMP
2483 config NR_CPUS_DEFAULT_4
2486 config NR_CPUS_DEFAULT_8
2489 config NR_CPUS_DEFAULT_16
2492 config NR_CPUS_DEFAULT_32
2495 config NR_CPUS_DEFAULT_64
2499 int "Maximum number of CPUs (2-256)"
2502 default "4" if NR_CPUS_DEFAULT_4
2503 default "8" if NR_CPUS_DEFAULT_8
2504 default "16" if NR_CPUS_DEFAULT_16
2505 default "32" if NR_CPUS_DEFAULT_32
2506 default "64" if NR_CPUS_DEFAULT_64
2508 This allows you to specify the maximum number of CPUs which this
2509 kernel will support. The maximum supported value is 32 for 32-bit
2510 kernel and 64 for 64-bit kernels; the minimum value which makes
2511 sense is 1 for Qemu (useful only for kernel debugging purposes)
2512 and 2 for all others.
2514 This is purely to save memory - each supported CPU adds
2515 approximately eight kilobytes to the kernel image. For best
2516 performance should round up your number of processors to the next
2519 config MIPS_PERF_SHARED_TC_COUNTERS
2523 # Timer Interrupt Frequency Configuration
2527 prompt "Timer frequency"
2530 Allows the configuration of the timer frequency.
2533 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2536 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2539 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2542 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2545 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2548 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2551 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2555 config SYS_SUPPORTS_48HZ
2558 config SYS_SUPPORTS_100HZ
2561 config SYS_SUPPORTS_128HZ
2564 config SYS_SUPPORTS_250HZ
2567 config SYS_SUPPORTS_256HZ
2570 config SYS_SUPPORTS_1000HZ
2573 config SYS_SUPPORTS_1024HZ
2576 config SYS_SUPPORTS_ARBIT_HZ
2578 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2579 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2580 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2581 !SYS_SUPPORTS_1024HZ
2586 default 100 if HZ_100
2587 default 128 if HZ_128
2588 default 250 if HZ_250
2589 default 256 if HZ_256
2590 default 1000 if HZ_1000
2591 default 1024 if HZ_1024
2594 def_bool HIGH_RES_TIMERS
2596 source "kernel/Kconfig.preempt"
2599 bool "Kexec system call"
2601 kexec is a system call that implements the ability to shutdown your
2602 current kernel, and to start another kernel. It is like a reboot
2603 but it is independent of the system firmware. And like a reboot
2604 you can start any kernel with it, not just Linux.
2606 The name comes from the similarity to the exec system call.
2608 It is an ongoing process to be certain the hardware in a machine
2609 is properly shutdown, so do not be surprised if this code does not
2610 initially work for you. As of this writing the exact hardware
2611 interface is strongly in flux, so no good recommendation can be
2615 bool "Kernel crash dumps"
2617 Generate crash dump after being started by kexec.
2618 This should be normally only set in special crash dump kernels
2619 which are loaded in the main kernel with kexec-tools into
2620 a specially reserved region and then later executed after
2621 a crash by kdump/kexec. The crash dump kernel must be compiled
2622 to a memory address not used by the main kernel or firmware using
2625 config PHYSICAL_START
2626 hex "Physical address where the kernel is loaded"
2627 default "0xffffffff84000000" if 64BIT
2628 default "0x84000000" if 32BIT
2629 depends on CRASH_DUMP
2631 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2632 If you plan to use kernel for capturing the crash dump change
2633 this value to start of the reserved region (the "X" value as
2634 specified in the "crashkernel=YM@XM" command line boot parameter
2635 passed to the panic-ed kernel).
2638 bool "Enable seccomp to safely compute untrusted bytecode"
2642 This kernel feature is useful for number crunching applications
2643 that may need to compute untrusted bytecode during their
2644 execution. By using pipes or other transports made available to
2645 the process as file descriptors supporting the read/write
2646 syscalls, it's possible to isolate those applications in
2647 their own address space using seccomp. Once seccomp is
2648 enabled via /proc/<pid>/seccomp, it cannot be disabled
2649 and the task is only allowed to execute a few safe syscalls
2650 defined by each seccomp mode.
2652 If unsure, say Y. Only embedded should say N here.
2654 config MIPS_O32_FP64_SUPPORT
2655 bool "Support for O32 binaries using 64-bit FP (EXPERIMENTAL)"
2656 depends on 32BIT || MIPS32_O32
2658 When this is enabled, the kernel will support use of 64-bit floating
2659 point registers with binaries using the O32 ABI along with the
2660 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
2661 32-bit MIPS systems this support is at the cost of increasing the
2662 size and complexity of the compiled FPU emulator. Thus if you are
2663 running a MIPS32 system and know that none of your userland binaries
2664 will require 64-bit floating point, you may wish to reduce the size
2665 of your kernel & potentially improve FP emulation performance by
2668 Although binutils currently supports use of this flag the details
2669 concerning its effect upon the O32 ABI in userland are still being
2670 worked on. In order to avoid userland becoming dependant upon current
2671 behaviour before the details have been finalised, this option should
2672 be considered experimental and only enabled by those working upon
2680 select OF_EARLY_FLATTREE
2687 prompt "Kernel appended dtb support" if OF
2688 default MIPS_NO_APPENDED_DTB
2690 config MIPS_NO_APPENDED_DTB
2693 Do not enable appended dtb support.
2695 config MIPS_RAW_APPENDED_DTB
2698 With this option, the boot code will look for a device tree binary
2699 DTB) appended to raw vmlinux.bin (without decompressor).
2700 (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb).
2702 This is meant as a backward compatibility convenience for those
2703 systems with a bootloader that can't be upgraded to accommodate
2704 the documented boot protocol using a device tree.
2706 Beware that there is very little in terms of protection against
2707 this option being confused by leftover garbage in memory that might
2708 look like a DTB header after a reboot if no actual DTB is appended
2709 to vmlinux.bin. Do not leave this option active in a production kernel
2710 if you don't intend to always append a DTB.
2712 config MIPS_ZBOOT_APPENDED_DTB
2714 depends on SYS_SUPPORTS_ZBOOT
2716 With this option, the boot code will look for a device tree binary
2717 DTB) appended to raw vmlinuz.bin (with decompressor).
2718 (e.g. cat vmlinuz.bin <filename>.dtb > vmlinuz_w_dtb).
2720 This is meant as a backward compatibility convenience for those
2721 systems with a bootloader that can't be upgraded to accommodate
2722 the documented boot protocol using a device tree.
2724 Beware that there is very little in terms of protection against
2725 this option being confused by leftover garbage in memory that might
2726 look like a DTB header after a reboot if no actual DTB is appended
2727 to vmlinuz.bin. Do not leave this option active in a production kernel
2728 if you don't intend to always append a DTB.
2733 config LOCKDEP_SUPPORT
2737 config STACKTRACE_SUPPORT
2741 config PGTABLE_LEVELS
2743 default 3 if 64BIT && !PAGE_SIZE_64KB
2746 source "init/Kconfig"
2748 source "kernel/Kconfig.freezer"
2750 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2758 bool "Support for PCI controller"
2759 depends on HW_HAS_PCI
2761 select NO_GENERIC_PCI_IOPORT_MAP
2763 Find out whether you have a PCI motherboard. PCI is the name of a
2764 bus system, i.e. the way the CPU talks to the other stuff inside
2765 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2769 bool "Support for HT-linked PCI"
2771 depends on CPU_LOONGSON3
2775 Loongson family machines use Hyper-Transport bus for inter-core
2776 connection and device connection. The PCI bus is a subordinate
2777 linked at HT. Choose Y for Loongson-3 based machines.
2782 source "drivers/pci/Kconfig"
2784 source "drivers/pci/pcie/Kconfig"
2787 # ISA support is now enabled via select. Too many systems still have the one
2788 # or other ISA chip on the board that users don't know about so don't expect
2789 # users to choose the right thing ...
2796 depends on HW_HAS_EISA
2798 select GENERIC_ISA_DMA
2800 The Extended Industry Standard Architecture (EISA) bus was
2801 developed as an open alternative to the IBM MicroChannel bus.
2803 The EISA bus provided some of the features of the IBM MicroChannel
2804 bus while maintaining backward compatibility with cards made for
2805 the older ISA bus. The EISA bus saw limited use between 1988 and
2806 1995 when it was made obsolete by the PCI bus.
2808 Say Y here if you are building a kernel for an EISA-based machine.
2812 source "drivers/eisa/Kconfig"
2815 bool "TURBOchannel support"
2816 depends on MACH_DECSTATION
2818 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2819 processors. TURBOchannel programming specifications are available
2821 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2823 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2824 Linux driver support status is documented at:
2825 <http://www.linux-mips.org/wiki/DECstation>
2835 select MIPS_EXTERNAL_TIMER
2843 source "drivers/pcmcia/Kconfig"
2845 source "drivers/pci/hotplug/Kconfig"
2848 tristate "RapidIO support"
2852 If you say Y here, the kernel will include drivers and
2853 infrastructure code to support RapidIO interconnect devices.
2855 source "drivers/rapidio/Kconfig"
2859 menu "Executable file formats"
2861 source "fs/Kconfig.binfmt"
2866 config MIPS32_COMPAT
2872 config SYSVIPC_COMPAT
2876 bool "Kernel support for o32 binaries"
2878 select ARCH_WANT_OLD_COMPAT_IPC
2880 select MIPS32_COMPAT
2881 select SYSVIPC_COMPAT if SYSVIPC
2883 Select this option if you want to run o32 binaries. These are pure
2884 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2885 existing binaries are in this format.
2890 bool "Kernel support for n32 binaries"
2893 select MIPS32_COMPAT
2894 select SYSVIPC_COMPAT if SYSVIPC
2896 Select this option if you want to run n32 binaries. These are
2897 64-bit binaries using 32-bit quantities for addressing and certain
2898 data that would normally be 64-bit. They are used in special
2905 default y if MIPS32_O32 || MIPS32_N32
2909 menu "Power management options"
2911 config ARCH_HIBERNATION_POSSIBLE
2913 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2915 config ARCH_SUSPEND_POSSIBLE
2917 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2919 source "kernel/power/Kconfig"
2923 config MIPS_EXTERNAL_TIMER
2926 menu "CPU Power Management"
2928 if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
2929 source "drivers/cpufreq/Kconfig"
2932 source "drivers/cpuidle/Kconfig"
2936 source "net/Kconfig"
2938 source "drivers/Kconfig"
2940 source "drivers/firmware/Kconfig"
2944 source "arch/mips/Kconfig.debug"
2946 source "security/Kconfig"
2948 source "crypto/Kconfig"
2950 source "lib/Kconfig"
2952 source "arch/mips/kvm/Kconfig"