4 select ARCH_SUPPORTS_UPROBES
5 select ARCH_MIGHT_HAVE_PC_PARPORT
6 select ARCH_MIGHT_HAVE_PC_SERIO
7 select ARCH_USE_CMPXCHG_LOCKREF if 64BIT
8 select ARCH_USE_BUILTIN_BSWAP
9 select HAVE_CONTEXT_TRACKING
10 select HAVE_GENERIC_DMA_COHERENT
12 select HAVE_IRQ_EXIT_ON_IRQ_STACK
14 select HAVE_PERF_EVENTS
15 select PERF_USE_VMALLOC
16 select HAVE_ARCH_COMPILER_H
18 select HAVE_ARCH_SECCOMP_FILTER
19 select HAVE_ARCH_TRACEHOOK
20 select HAVE_BPF_JIT if !CPU_MICROMIPS
21 select HAVE_FUNCTION_TRACER
22 select HAVE_DYNAMIC_FTRACE
23 select HAVE_FTRACE_MCOUNT_RECORD
24 select HAVE_C_RECORDMCOUNT
25 select HAVE_FUNCTION_GRAPH_TRACER
27 select HAVE_KRETPROBES
28 select HAVE_SYSCALL_TRACEPOINTS
29 select HAVE_DEBUG_KMEMLEAK
30 select HAVE_SYSCALL_TRACEPOINTS
31 select ARCH_HAS_ELF_RANDOMIZE
32 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT
33 select RTC_LIB if !MACH_LOONGSON64
34 select GENERIC_ATOMIC64 if !64BIT
35 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
37 select HAVE_DMA_CONTIGUOUS
38 select HAVE_DMA_API_DEBUG
39 select GENERIC_IRQ_PROBE
40 select GENERIC_IRQ_SHOW
41 select GENERIC_PCI_IOMAP
42 select HAVE_ARCH_JUMP_LABEL
43 select ARCH_WANT_IPC_PARSE_VERSION
44 select IRQ_FORCED_THREADING
46 select HAVE_MEMBLOCK_NODE_MAP
47 select ARCH_DISCARD_MEMBLOCK
48 select GENERIC_SMP_IDLE_THREAD
49 select BUILDTIME_EXTABLE_SORT
50 select GENERIC_CLOCKEVENTS
51 select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC
52 select GENERIC_CMOS_UPDATE
53 select HAVE_MOD_ARCH_SPECIFIC
55 select MODULES_USE_ELF_REL if MODULES
56 select MODULES_USE_ELF_RELA if MODULES && 64BIT
57 select CLONE_BACKWARDS
58 select HAVE_DEBUG_STACKOVERFLOW
59 select HAVE_CC_STACKPROTECTOR
60 select CPU_PM if CPU_IDLE
61 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
62 select ARCH_BINFMT_ELF_STATE
63 select SYSCTL_EXCEPTION_TRACE
64 select HAVE_VIRT_CPU_ACCOUNTING_GEN
65 select HAVE_IRQ_TIME_ACCOUNTING
66 select GENERIC_TIME_VSYSCALL
67 select ARCH_CLOCKSOURCE_DATA
69 menu "Machine selection"
76 bool "Alchemy processor based machines"
77 select ARCH_PHYS_ADDR_T_64BIT
81 select DMA_MAYBE_COHERENT # Au1000,1500,1100 aren't, rest is
82 select SYS_HAS_CPU_MIPS32_R1
83 select SYS_SUPPORTS_32BIT_KERNEL
84 select SYS_SUPPORTS_APM_EMULATION
85 select ARCH_REQUIRE_GPIOLIB
86 select SYS_SUPPORTS_ZBOOT
90 bool "Texas Instruments AR7"
92 select DMA_NONCOHERENT
98 select SYS_HAS_CPU_MIPS32_R1
99 select SYS_HAS_EARLY_PRINTK
100 select SYS_SUPPORTS_32BIT_KERNEL
101 select SYS_SUPPORTS_LITTLE_ENDIAN
102 select SYS_SUPPORTS_MIPS16
103 select SYS_SUPPORTS_ZBOOT_UART16550
104 select ARCH_REQUIRE_GPIOLIB
108 Support for the Texas Instruments AR7 System-on-a-Chip
109 family: TNETD7100, 7200 and 7300.
112 bool "Atheros AR231x/AR531x SoC support"
115 select DMA_NONCOHERENT
118 select SYS_HAS_CPU_MIPS32_R1
119 select SYS_SUPPORTS_BIG_ENDIAN
120 select SYS_SUPPORTS_32BIT_KERNEL
121 select SYS_HAS_EARLY_PRINTK
123 Support for Atheros AR231x and Atheros AR531x based boards
126 bool "Atheros AR71XX/AR724X/AR913X based boards"
127 select ARCH_HAS_RESET_CONTROLLER
128 select ARCH_REQUIRE_GPIOLIB
132 select DMA_NONCOHERENT
138 select SYS_HAS_CPU_MIPS32_R2
139 select SYS_HAS_EARLY_PRINTK
140 select SYS_SUPPORTS_32BIT_KERNEL
141 select SYS_SUPPORTS_BIG_ENDIAN
142 select SYS_SUPPORTS_MIPS16
143 select SYS_SUPPORTS_ZBOOT
146 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
149 bool "Broadcom Generic BMIPS kernel"
151 select NO_EXCEPT_FILL
157 select BCM7038_L1_IRQ
158 select BCM7120_L2_IRQ
159 select BRCMSTB_L2_IRQ
161 select DMA_NONCOHERENT
162 select SYS_SUPPORTS_32BIT_KERNEL
163 select SYS_SUPPORTS_LITTLE_ENDIAN
164 select SYS_SUPPORTS_BIG_ENDIAN
165 select SYS_SUPPORTS_HIGHMEM
166 select SYS_HAS_CPU_BMIPS32_3300
167 select SYS_HAS_CPU_BMIPS4350
168 select SYS_HAS_CPU_BMIPS4380
169 select SYS_HAS_CPU_BMIPS5000
171 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
172 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
173 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
174 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
176 Build a generic DT-based kernel image that boots on select
177 BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top
178 box chips. Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN
179 must be set appropriately for your board.
182 bool "Broadcom BCM47XX based boards"
183 select ARCH_WANT_OPTIONAL_GPIOLIB
187 select DMA_NONCOHERENT
190 select SYS_HAS_CPU_MIPS32_R1
191 select NO_EXCEPT_FILL
192 select SYS_SUPPORTS_32BIT_KERNEL
193 select SYS_SUPPORTS_LITTLE_ENDIAN
194 select SYS_SUPPORTS_MIPS16
195 select SYS_HAS_EARLY_PRINTK
196 select USE_GENERIC_EARLY_PRINTK_8250
198 select LEDS_GPIO_REGISTER
201 Support for BCM47XX based boards
204 bool "Broadcom BCM63XX based boards"
209 select DMA_NONCOHERENT
211 select SYS_SUPPORTS_32BIT_KERNEL
212 select SYS_SUPPORTS_BIG_ENDIAN
213 select SYS_HAS_EARLY_PRINTK
214 select SYS_HAS_CPU_BMIPS32_3300
215 select SYS_HAS_CPU_BMIPS4350
216 select SYS_HAS_CPU_BMIPS4380
218 select ARCH_REQUIRE_GPIOLIB
220 select MIPS_L1_CACHE_SHIFT_4
222 Support for BCM63XX based boards
229 select DMA_NONCOHERENT
235 select PCI_GT64XXX_PCI0
237 select SYS_HAS_CPU_NEVADA
238 select SYS_HAS_EARLY_PRINTK
239 select SYS_SUPPORTS_32BIT_KERNEL
240 select SYS_SUPPORTS_64BIT_KERNEL
241 select SYS_SUPPORTS_LITTLE_ENDIAN
242 select USE_GENERIC_EARLY_PRINTK_8250
244 config MACH_DECSTATION
248 select CEVT_R4K if CPU_R4X00
250 select CSRC_R4K if CPU_R4X00
251 select CPU_DADDI_WORKAROUNDS if 64BIT
252 select CPU_R4000_WORKAROUNDS if 64BIT
253 select CPU_R4400_WORKAROUNDS if 64BIT
254 select DMA_NONCOHERENT
257 select SYS_HAS_CPU_R3000
258 select SYS_HAS_CPU_R4X00
259 select SYS_SUPPORTS_32BIT_KERNEL
260 select SYS_SUPPORTS_64BIT_KERNEL
261 select SYS_SUPPORTS_LITTLE_ENDIAN
262 select SYS_SUPPORTS_128HZ
263 select SYS_SUPPORTS_256HZ
264 select SYS_SUPPORTS_1024HZ
265 select MIPS_L1_CACHE_SHIFT_4
267 This enables support for DEC's MIPS based workstations. For details
268 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
269 DECstation porting pages on <http://decstation.unix-ag.org/>.
271 If you have one of the following DECstation Models you definitely
272 want to choose R4xx0 for the CPU Type:
279 otherwise choose R3000.
282 bool "Jazz family of machines"
285 select ARCH_MAY_HAVE_PC_FDC
288 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
289 select GENERIC_ISA_DMA
290 select HAVE_PCSPKR_PLATFORM
295 select SYS_HAS_CPU_R4X00
296 select SYS_SUPPORTS_32BIT_KERNEL
297 select SYS_SUPPORTS_64BIT_KERNEL
298 select SYS_SUPPORTS_100HZ
300 This a family of machines based on the MIPS R4030 chipset which was
301 used by several vendors to build RISC/os and Windows NT workstations.
302 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
303 Olivetti M700-10 workstations.
306 bool "Ingenic SoC based machines"
307 select SYS_SUPPORTS_32BIT_KERNEL
308 select SYS_SUPPORTS_LITTLE_ENDIAN
309 select SYS_SUPPORTS_ZBOOT_UART16550
310 select DMA_NONCOHERENT
312 select ARCH_REQUIRE_GPIOLIB
314 select GENERIC_IRQ_CHIP
320 bool "Lantiq based platforms"
321 select DMA_NONCOHERENT
325 select SYS_HAS_CPU_MIPS32_R1
326 select SYS_HAS_CPU_MIPS32_R2
327 select SYS_SUPPORTS_BIG_ENDIAN
328 select SYS_SUPPORTS_32BIT_KERNEL
329 select SYS_SUPPORTS_MIPS16
330 select SYS_SUPPORTS_MULTITHREADING
331 select SYS_HAS_EARLY_PRINTK
332 select ARCH_REQUIRE_GPIOLIB
335 select HAVE_MACH_CLKDEV
339 select PINCTRL_LANTIQ
340 select ARCH_HAS_RESET_CONTROLLER
341 select RESET_CONTROLLER
344 bool "LASAT Networks platforms"
348 select DMA_NONCOHERENT
349 select SYS_HAS_EARLY_PRINTK
352 select PCI_GT64XXX_PCI0
354 select R5000_CPU_SCACHE
355 select SYS_HAS_CPU_R5000
356 select SYS_SUPPORTS_32BIT_KERNEL
357 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
358 select SYS_SUPPORTS_LITTLE_ENDIAN
360 config MACH_LOONGSON32
361 bool "Loongson-1 family of machines"
362 select SYS_SUPPORTS_ZBOOT
364 This enables support for the Loongson-1 family of machines.
366 Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by
367 the Institute of Computing Technology (ICT), Chinese Academy of
370 config MACH_LOONGSON64
371 bool "Loongson-2/3 family of machines"
372 select SYS_SUPPORTS_ZBOOT
374 This enables the support of Loongson-2/3 family of machines.
376 Loongson-2 is a family of single-core CPUs and Loongson-3 is a
377 family of multi-core CPUs. They are both 64-bit general-purpose
378 MIPS-compatible CPUs. Loongson-2/3 are developed by the Institute
379 of Computing Technology (ICT), Chinese Academy of Sciences (CAS)
380 in the People's Republic of China. The chief architect is Professor
383 config MACH_PISTACHIO
384 bool "IMG Pistachio SoC based boards"
385 select ARCH_REQUIRE_GPIOLIB
389 select CLKSRC_MIPS_GIC
392 select DMA_MAYBE_COHERENT
396 select MIPS_CPU_SCACHE
400 select SYS_HAS_CPU_MIPS32_R2
401 select SYS_SUPPORTS_32BIT_KERNEL
402 select SYS_SUPPORTS_LITTLE_ENDIAN
403 select SYS_SUPPORTS_MIPS_CPS
404 select SYS_SUPPORTS_MULTITHREADING
405 select SYS_SUPPORTS_ZBOOT
406 select SYS_HAS_EARLY_PRINTK
407 select USE_GENERIC_EARLY_PRINTK_8250
410 This enables support for the IMG Pistachio SoC platform.
413 bool "MIPSfpga Xilinx based boards"
414 select ARCH_REQUIRE_GPIOLIB
423 select MIPS_CPU_SCACHE
424 select SYS_HAS_EARLY_PRINTK
425 select SYS_HAS_CPU_MIPS32_R2
426 select SYS_SUPPORTS_32BIT_KERNEL
427 select SYS_SUPPORTS_LITTLE_ENDIAN
428 select SYS_SUPPORTS_ZBOOT_UART16550
430 select USE_GENERIC_EARLY_PRINTK_8250
432 This enables support for the IMG University Program MIPSfpga platform.
435 bool "MIPS Malta board"
436 select ARCH_MAY_HAVE_PC_FDC
442 select CLKSRC_MIPS_GIC
444 select DMA_MAYBE_COHERENT
445 select GENERIC_ISA_DMA
446 select HAVE_PCSPKR_PLATFORM
453 select MIPS_CPU_SCACHE
454 select MIPS_L1_CACHE_SHIFT_6
455 select PCI_GT64XXX_PCI0
459 select SYS_HAS_CPU_MIPS32_R1
460 select SYS_HAS_CPU_MIPS32_R2
461 select SYS_HAS_CPU_MIPS32_R3_5
462 select SYS_HAS_CPU_MIPS32_R5
463 select SYS_HAS_CPU_MIPS32_R6
464 select SYS_HAS_CPU_MIPS64_R1
465 select SYS_HAS_CPU_MIPS64_R2
466 select SYS_HAS_CPU_MIPS64_R6
467 select SYS_HAS_CPU_NEVADA
468 select SYS_HAS_CPU_RM7000
469 select SYS_SUPPORTS_32BIT_KERNEL
470 select SYS_SUPPORTS_64BIT_KERNEL
471 select SYS_SUPPORTS_BIG_ENDIAN
472 select SYS_SUPPORTS_HIGHMEM
473 select SYS_SUPPORTS_LITTLE_ENDIAN
474 select SYS_SUPPORTS_MICROMIPS
475 select SYS_SUPPORTS_MIPS_CMP
476 select SYS_SUPPORTS_MIPS_CPS
477 select SYS_SUPPORTS_MIPS16
478 select SYS_SUPPORTS_MULTITHREADING
479 select SYS_SUPPORTS_SMARTMIPS
480 select SYS_SUPPORTS_ZBOOT
482 select ZONE_DMA32 if 64BIT
486 This enables support for the MIPS Technologies Malta evaluation
490 bool "MIPS SEAD3 board"
496 select CLKSRC_MIPS_GIC
498 select CPU_MIPSR2_IRQ_VI
499 select CPU_MIPSR2_IRQ_EI
500 select DMA_NONCOHERENT
505 select SYS_HAS_CPU_MIPS32_R1
506 select SYS_HAS_CPU_MIPS32_R2
507 select SYS_HAS_CPU_MIPS64_R1
508 select SYS_HAS_EARLY_PRINTK
509 select SYS_SUPPORTS_32BIT_KERNEL
510 select SYS_SUPPORTS_64BIT_KERNEL
511 select SYS_SUPPORTS_BIG_ENDIAN
512 select SYS_SUPPORTS_LITTLE_ENDIAN
513 select SYS_SUPPORTS_SMARTMIPS
514 select SYS_SUPPORTS_MICROMIPS
515 select SYS_SUPPORTS_MIPS16
516 select USB_EHCI_BIG_ENDIAN_DESC
517 select USB_EHCI_BIG_ENDIAN_MMIO
520 This enables support for the MIPS Technologies SEAD3 evaluation
524 bool "NEC EMMA2RH Mark-eins board"
528 This enables support for the NEC Electronics Mark-eins boards.
531 bool "NEC VR4100 series based machines"
534 select SYS_HAS_CPU_VR41XX
535 select SYS_SUPPORTS_MIPS16
536 select ARCH_REQUIRE_GPIOLIB
539 bool "NXP STB220 board"
542 Support for NXP Semiconductors STB220 Development Board.
549 Support for NXP Semiconductors STB225 Development Board.
552 bool "PMC-Sierra MSP chipsets"
555 select DMA_NONCOHERENT
557 select NO_EXCEPT_FILL
559 select SYS_HAS_CPU_MIPS32_R1
560 select SYS_HAS_CPU_MIPS32_R2
561 select SYS_SUPPORTS_32BIT_KERNEL
562 select SYS_SUPPORTS_BIG_ENDIAN
563 select SYS_SUPPORTS_MIPS16
566 select SERIAL_8250_CONSOLE
567 select USB_EHCI_BIG_ENDIAN_MMIO
568 select USB_EHCI_BIG_ENDIAN_DESC
570 This adds support for the PMC-Sierra family of Multi-Service
571 Processor System-On-A-Chips. These parts include a number
572 of integrated peripherals, interfaces and DSPs in addition to
573 a variety of MIPS cores.
576 bool "Ralink based machines"
580 select DMA_NONCOHERENT
583 select SYS_HAS_CPU_MIPS32_R1
584 select SYS_HAS_CPU_MIPS32_R2
585 select SYS_SUPPORTS_32BIT_KERNEL
586 select SYS_SUPPORTS_LITTLE_ENDIAN
587 select SYS_SUPPORTS_MIPS16
588 select SYS_HAS_EARLY_PRINTK
589 select HAVE_MACH_CLKDEV
591 select ARCH_HAS_RESET_CONTROLLER
592 select RESET_CONTROLLER
595 bool "SGI IP22 (Indy/Indigo2)"
601 select DEFAULT_SGI_PARTITION
602 select DMA_NONCOHERENT
606 select IP22_CPU_SCACHE
608 select GENERIC_ISA_DMA_SUPPORT_BROKEN
610 select SGI_HAS_INDYDOG
616 select SYS_HAS_CPU_R4X00
617 select SYS_HAS_CPU_R5000
619 # Disable EARLY_PRINTK for now since it leads to overwritten prom
620 # memory during early boot on some machines.
622 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
623 # for a more details discussion
625 # select SYS_HAS_EARLY_PRINTK
626 select SYS_SUPPORTS_32BIT_KERNEL
627 select SYS_SUPPORTS_64BIT_KERNEL
628 select SYS_SUPPORTS_BIG_ENDIAN
629 select MIPS_L1_CACHE_SHIFT_7
631 This are the SGI Indy, Challenge S and Indigo2, as well as certain
632 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
633 that runs on these, say Y here.
636 bool "SGI IP27 (Origin200/2000)"
640 select DEFAULT_SGI_PARTITION
642 select SYS_HAS_EARLY_PRINTK
644 select NR_CPUS_DEFAULT_64
645 select SYS_HAS_CPU_R10000
646 select SYS_SUPPORTS_64BIT_KERNEL
647 select SYS_SUPPORTS_BIG_ENDIAN
648 select SYS_SUPPORTS_NUMA
649 select SYS_SUPPORTS_SMP
650 select MIPS_L1_CACHE_SHIFT_7
652 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
653 workstations. To compile a Linux kernel that runs on these, say Y
657 bool "SGI IP28 (Indigo2 R10k)"
663 select DEFAULT_SGI_PARTITION
664 select DMA_NONCOHERENT
665 select GENERIC_ISA_DMA_SUPPORT_BROKEN
671 select SGI_HAS_INDYDOG
677 select SYS_HAS_CPU_R10000
679 # Disable EARLY_PRINTK for now since it leads to overwritten prom
680 # memory during early boot on some machines.
682 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
683 # for a more details discussion
685 # select SYS_HAS_EARLY_PRINTK
686 select SYS_SUPPORTS_64BIT_KERNEL
687 select SYS_SUPPORTS_BIG_ENDIAN
688 select MIPS_L1_CACHE_SHIFT_7
690 This is the SGI Indigo2 with R10000 processor. To compile a Linux
691 kernel that runs on these, say Y here.
700 select DMA_NONCOHERENT
703 select R5000_CPU_SCACHE
704 select RM7000_CPU_SCACHE
705 select SYS_HAS_CPU_R5000
706 select SYS_HAS_CPU_R10000 if BROKEN
707 select SYS_HAS_CPU_RM7000
708 select SYS_HAS_CPU_NEVADA
709 select SYS_SUPPORTS_64BIT_KERNEL
710 select SYS_SUPPORTS_BIG_ENDIAN
712 If you want this kernel to run on SGI O2 workstation, say Y here.
715 bool "Sibyte BCM91120C-CRhine"
718 select SIBYTE_BCM1120
720 select SYS_HAS_CPU_SB1
721 select SYS_SUPPORTS_BIG_ENDIAN
722 select SYS_SUPPORTS_LITTLE_ENDIAN
725 bool "Sibyte BCM91120x-Carmel"
728 select SIBYTE_BCM1120
730 select SYS_HAS_CPU_SB1
731 select SYS_SUPPORTS_BIG_ENDIAN
732 select SYS_SUPPORTS_LITTLE_ENDIAN
735 bool "Sibyte BCM91125C-CRhone"
738 select SIBYTE_BCM1125
740 select SYS_HAS_CPU_SB1
741 select SYS_SUPPORTS_BIG_ENDIAN
742 select SYS_SUPPORTS_HIGHMEM
743 select SYS_SUPPORTS_LITTLE_ENDIAN
746 bool "Sibyte BCM91125E-Rhone"
749 select SIBYTE_BCM1125H
751 select SYS_HAS_CPU_SB1
752 select SYS_SUPPORTS_BIG_ENDIAN
753 select SYS_SUPPORTS_LITTLE_ENDIAN
756 bool "Sibyte BCM91250A-SWARM"
759 select HAVE_PATA_PLATFORM
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
768 config SIBYTE_LITTLESUR
769 bool "Sibyte BCM91250C2-LittleSur"
772 select HAVE_PATA_PLATFORM
775 select SYS_HAS_CPU_SB1
776 select SYS_SUPPORTS_BIG_ENDIAN
777 select SYS_SUPPORTS_HIGHMEM
778 select SYS_SUPPORTS_LITTLE_ENDIAN
779 select ZONE_DMA32 if 64BIT
781 config SIBYTE_SENTOSA
782 bool "Sibyte BCM91250E-Sentosa"
787 select SYS_HAS_CPU_SB1
788 select SYS_SUPPORTS_BIG_ENDIAN
789 select SYS_SUPPORTS_LITTLE_ENDIAN
792 bool "Sibyte BCM91480B-BigSur"
795 select NR_CPUS_DEFAULT_4
796 select SIBYTE_BCM1x80
798 select SYS_HAS_CPU_SB1
799 select SYS_SUPPORTS_BIG_ENDIAN
800 select SYS_SUPPORTS_HIGHMEM
801 select SYS_SUPPORTS_LITTLE_ENDIAN
802 select ZONE_DMA32 if 64BIT
805 bool "SNI RM200/300/400"
806 select FW_ARC if CPU_LITTLE_ENDIAN
807 select FW_ARC32 if CPU_LITTLE_ENDIAN
808 select FW_SNIPROM if CPU_BIG_ENDIAN
809 select ARCH_MAY_HAVE_PC_FDC
813 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
814 select DMA_NONCOHERENT
815 select GENERIC_ISA_DMA
816 select HAVE_PCSPKR_PLATFORM
823 select MIPS_L1_CACHE_SHIFT_6
824 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
825 select SYS_HAS_CPU_R4X00
826 select SYS_HAS_CPU_R5000
827 select SYS_HAS_CPU_R10000
828 select R5000_CPU_SCACHE
829 select SYS_HAS_EARLY_PRINTK
830 select SYS_SUPPORTS_32BIT_KERNEL
831 select SYS_SUPPORTS_64BIT_KERNEL
832 select SYS_SUPPORTS_BIG_ENDIAN
833 select SYS_SUPPORTS_HIGHMEM
834 select SYS_SUPPORTS_LITTLE_ENDIAN
836 The SNI RM200/300/400 are MIPS-based machines manufactured by
837 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
838 Technology and now in turn merged with Fujitsu. Say Y here to
839 support this machine type.
842 bool "Toshiba TX39 series based machines"
845 bool "Toshiba TX49 series based machines"
847 config MIKROTIK_RB532
848 bool "Mikrotik RB532 boards"
851 select DMA_NONCOHERENT
854 select SYS_HAS_CPU_MIPS32_R1
855 select SYS_SUPPORTS_32BIT_KERNEL
856 select SYS_SUPPORTS_LITTLE_ENDIAN
859 select ARCH_REQUIRE_GPIOLIB
860 select MIPS_L1_CACHE_SHIFT_4
862 Support the Mikrotik(tm) RouterBoard 532 series,
863 based on the IDT RC32434 SoC.
865 config CAVIUM_OCTEON_SOC
866 bool "Cavium Networks Octeon SoC based boards"
868 select ARCH_PHYS_ADDR_T_64BIT
870 select SYS_SUPPORTS_64BIT_KERNEL
871 select SYS_SUPPORTS_BIG_ENDIAN
873 select EDAC_ATOMIC_SCRUB
874 select SYS_SUPPORTS_LITTLE_ENDIAN
875 select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
876 select SYS_HAS_EARLY_PRINTK
877 select SYS_HAS_CPU_CAVIUM_OCTEON
882 select ARCH_REQUIRE_GPIOLIB
885 select ARCH_SPARSEMEM_ENABLE
886 select SYS_SUPPORTS_SMP
887 select NR_CPUS_DEFAULT_16
889 select MTD_COMPLEX_MAPPINGS
891 This option supports all of the Octeon reference boards from Cavium
892 Networks. It builds a kernel that dynamically determines the Octeon
893 CPU type and supports all known board reference implementations.
894 Some of the supported boards are:
901 Say Y here for most Octeon reference boards.
904 bool "Netlogic XLR/XLS based systems"
907 select SYS_HAS_CPU_XLR
908 select SYS_SUPPORTS_SMP
911 select SYS_SUPPORTS_32BIT_KERNEL
912 select SYS_SUPPORTS_64BIT_KERNEL
913 select ARCH_PHYS_ADDR_T_64BIT
914 select SYS_SUPPORTS_BIG_ENDIAN
915 select SYS_SUPPORTS_HIGHMEM
917 select NR_CPUS_DEFAULT_32
921 select ZONE_DMA32 if 64BIT
923 select SYS_HAS_EARLY_PRINTK
924 select SYS_SUPPORTS_ZBOOT
925 select SYS_SUPPORTS_ZBOOT_UART16550
927 Support for systems based on Netlogic XLR and XLS processors.
928 Say Y here if you have a XLR or XLS based board.
931 bool "Netlogic XLP based systems"
934 select SYS_HAS_CPU_XLP
935 select SYS_SUPPORTS_SMP
937 select SYS_SUPPORTS_32BIT_KERNEL
938 select SYS_SUPPORTS_64BIT_KERNEL
939 select ARCH_PHYS_ADDR_T_64BIT
940 select ARCH_REQUIRE_GPIOLIB
941 select SYS_SUPPORTS_BIG_ENDIAN
942 select SYS_SUPPORTS_LITTLE_ENDIAN
943 select SYS_SUPPORTS_HIGHMEM
945 select NR_CPUS_DEFAULT_32
949 select ZONE_DMA32 if 64BIT
951 select SYS_HAS_EARLY_PRINTK
953 select SYS_SUPPORTS_ZBOOT
954 select SYS_SUPPORTS_ZBOOT_UART16550
956 This board is based on Netlogic XLP Processor.
957 Say Y here if you have a XLP based board.
960 bool "Para-Virtualized guest system"
964 select SYS_SUPPORTS_64BIT_KERNEL
965 select SYS_SUPPORTS_32BIT_KERNEL
966 select SYS_SUPPORTS_BIG_ENDIAN
967 select SYS_SUPPORTS_SMP
968 select NR_CPUS_DEFAULT_4
969 select SYS_HAS_EARLY_PRINTK
970 select SYS_HAS_CPU_MIPS32_R2
971 select SYS_HAS_CPU_MIPS64_R2
972 select SYS_HAS_CPU_CAVIUM_OCTEON
976 This option supports guest running under ????
980 source "arch/mips/alchemy/Kconfig"
981 source "arch/mips/ath25/Kconfig"
982 source "arch/mips/ath79/Kconfig"
983 source "arch/mips/bcm47xx/Kconfig"
984 source "arch/mips/bcm63xx/Kconfig"
985 source "arch/mips/bmips/Kconfig"
986 source "arch/mips/jazz/Kconfig"
987 source "arch/mips/jz4740/Kconfig"
988 source "arch/mips/lantiq/Kconfig"
989 source "arch/mips/lasat/Kconfig"
990 source "arch/mips/pistachio/Kconfig"
991 source "arch/mips/pmcs-msp71xx/Kconfig"
992 source "arch/mips/ralink/Kconfig"
993 source "arch/mips/sgi-ip27/Kconfig"
994 source "arch/mips/sibyte/Kconfig"
995 source "arch/mips/txx9/Kconfig"
996 source "arch/mips/vr41xx/Kconfig"
997 source "arch/mips/cavium-octeon/Kconfig"
998 source "arch/mips/loongson32/Kconfig"
999 source "arch/mips/loongson64/Kconfig"
1000 source "arch/mips/netlogic/Kconfig"
1001 source "arch/mips/paravirt/Kconfig"
1002 source "arch/mips/xilfpga/Kconfig"
1006 config RWSEM_GENERIC_SPINLOCK
1010 config RWSEM_XCHGADD_ALGORITHM
1013 config ARCH_HAS_ILOG2_U32
1017 config ARCH_HAS_ILOG2_U64
1021 config GENERIC_HWEIGHT
1025 config GENERIC_CALIBRATE_DELAY
1029 config SCHED_OMIT_FRAME_POINTER
1034 # Select some configuration options automatically based on user selections.
1039 config ARCH_MAY_HAVE_PC_FDC
1075 config MIPS_CLOCK_VSYSCALL
1076 def_bool CSRC_R4K || CLKSRC_MIPS_GIC
1079 select ARCH_REQUIRE_GPIOLIB
1085 config ARCH_DMA_ADDR_T_64BIT
1086 def_bool (HIGHMEM && ARCH_PHYS_ADDR_T_64BIT) || 64BIT
1088 config ARCH_SUPPORTS_UPROBES
1091 config DMA_MAYBE_COHERENT
1092 select DMA_NONCOHERENT
1098 config DMA_NONCOHERENT
1100 select NEED_DMA_MAP_STATE
1102 config NEED_DMA_MAP_STATE
1105 config SYS_HAS_EARLY_PRINTK
1109 bool "Support for hot-pluggable CPUs"
1110 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
1112 Say Y here to allow turning CPUs off and on. CPUs can be
1113 controlled through /sys/devices/system/cpu.
1114 (Note: power management support will enable this option
1115 automatically on SMP systems. )
1116 Say N if you want to disable CPU hotplug.
1118 config SYS_SUPPORTS_HOTPLUG_CPU
1121 config MIPS_BONITO64
1136 config NO_IOPORT_MAP
1142 config GENERIC_ISA_DMA
1144 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1147 config GENERIC_ISA_DMA_SUPPORT_BROKEN
1149 select GENERIC_ISA_DMA
1154 config HOLES_IN_ZONE
1158 # Endianness selection. Sufficiently obscure so many users don't know what to
1159 # answer,so we try hard to limit the available choices. Also the use of a
1160 # choice statement should be more obvious to the user.
1163 prompt "Endianness selection"
1165 Some MIPS machines can be configured for either little or big endian
1166 byte order. These modes require different kernels and a different
1167 Linux distribution. In general there is one preferred byteorder for a
1168 particular system but some systems are just as commonly used in the
1169 one or the other endianness.
1171 config CPU_BIG_ENDIAN
1173 depends on SYS_SUPPORTS_BIG_ENDIAN
1175 config CPU_LITTLE_ENDIAN
1176 bool "Little endian"
1177 depends on SYS_SUPPORTS_LITTLE_ENDIAN
1184 config SYS_SUPPORTS_APM_EMULATION
1187 config SYS_SUPPORTS_BIG_ENDIAN
1190 config SYS_SUPPORTS_LITTLE_ENDIAN
1193 config SYS_SUPPORTS_HUGETLBFS
1195 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1198 config MIPS_HUGE_TLB_SUPPORT
1199 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1216 config PCI_GT64XXX_PCI0
1219 config NO_EXCEPT_FILL
1226 select DMA_NONCOHERENT
1228 select SWAP_IO_SPACE
1229 select SYS_HAS_CPU_R5500
1230 select SYS_SUPPORTS_32BIT_KERNEL
1231 select SYS_SUPPORTS_64BIT_KERNEL
1232 select SYS_SUPPORTS_BIG_ENDIAN
1239 select DMA_NONCOHERENT
1240 select SYS_HAS_CPU_MIPS32_R2
1241 select SYS_SUPPORTS_32BIT_KERNEL
1242 select SYS_SUPPORTS_LITTLE_ENDIAN
1243 select SYS_SUPPORTS_BIG_ENDIAN
1244 select SYS_SUPPORTS_MIPS16
1245 select CPU_MIPSR2_IRQ_VI
1254 config SWAP_IO_SPACE
1257 config SGI_HAS_INDYDOG
1269 config SGI_HAS_ZILOG
1272 config SGI_HAS_I8042
1275 config DEFAULT_SGI_PARTITION
1287 config MIPS_L1_CACHE_SHIFT_4
1290 config MIPS_L1_CACHE_SHIFT_5
1293 config MIPS_L1_CACHE_SHIFT_6
1296 config MIPS_L1_CACHE_SHIFT_7
1299 config MIPS_L1_CACHE_SHIFT
1301 default "7" if MIPS_L1_CACHE_SHIFT_7
1302 default "6" if MIPS_L1_CACHE_SHIFT_6
1303 default "5" if MIPS_L1_CACHE_SHIFT_5
1304 default "4" if MIPS_L1_CACHE_SHIFT_4
1307 config HAVE_STD_PC_SERIAL_PORT
1311 bool "ARC console support"
1312 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1316 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1321 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1330 menu "CPU selection"
1336 config CPU_LOONGSON3
1337 bool "Loongson 3 CPU"
1338 depends on SYS_HAS_CPU_LOONGSON3
1339 select CPU_SUPPORTS_64BIT_KERNEL
1340 select CPU_SUPPORTS_HIGHMEM
1341 select CPU_SUPPORTS_HUGEPAGES
1342 select WEAK_ORDERING
1343 select WEAK_REORDERING_BEYOND_LLSC
1344 select ARCH_REQUIRE_GPIOLIB
1346 The Loongson 3 processor implements the MIPS64R2 instruction
1347 set with many extensions.
1349 config CPU_LOONGSON2E
1351 depends on SYS_HAS_CPU_LOONGSON2E
1352 select CPU_LOONGSON2
1354 The Loongson 2E processor implements the MIPS III instruction set
1355 with many extensions.
1357 It has an internal FPGA northbridge, which is compatible to
1360 config CPU_LOONGSON2F
1362 depends on SYS_HAS_CPU_LOONGSON2F
1363 select CPU_LOONGSON2
1364 select ARCH_REQUIRE_GPIOLIB
1366 The Loongson 2F processor implements the MIPS III instruction set
1367 with many extensions.
1369 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1370 have a similar programming interface with FPGA northbridge used in
1373 config CPU_LOONGSON1B
1375 depends on SYS_HAS_CPU_LOONGSON1B
1376 select CPU_LOONGSON1
1378 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1379 release 2 instruction set.
1381 config CPU_MIPS32_R1
1382 bool "MIPS32 Release 1"
1383 depends on SYS_HAS_CPU_MIPS32_R1
1384 select CPU_HAS_PREFETCH
1385 select CPU_SUPPORTS_32BIT_KERNEL
1386 select CPU_SUPPORTS_HIGHMEM
1388 Choose this option to build a kernel for release 1 or later of the
1389 MIPS32 architecture. Most modern embedded systems with a 32-bit
1390 MIPS processor are based on a MIPS32 processor. If you know the
1391 specific type of processor in your system, choose those that one
1392 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1393 Release 2 of the MIPS32 architecture is available since several
1394 years so chances are you even have a MIPS32 Release 2 processor
1395 in which case you should choose CPU_MIPS32_R2 instead for better
1398 config CPU_MIPS32_R2
1399 bool "MIPS32 Release 2"
1400 depends on SYS_HAS_CPU_MIPS32_R2
1401 select CPU_HAS_PREFETCH
1402 select CPU_SUPPORTS_32BIT_KERNEL
1403 select CPU_SUPPORTS_HIGHMEM
1404 select CPU_SUPPORTS_MSA
1407 Choose this option to build a kernel for release 2 or later of the
1408 MIPS32 architecture. Most modern embedded systems with a 32-bit
1409 MIPS processor are based on a MIPS32 processor. If you know the
1410 specific type of processor in your system, choose those that one
1411 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1413 config CPU_MIPS32_R6
1414 bool "MIPS32 Release 6"
1415 depends on SYS_HAS_CPU_MIPS32_R6
1416 select CPU_HAS_PREFETCH
1417 select CPU_SUPPORTS_32BIT_KERNEL
1418 select CPU_SUPPORTS_HIGHMEM
1419 select CPU_SUPPORTS_MSA
1422 select MIPS_O32_FP64_SUPPORT
1424 Choose this option to build a kernel for release 6 or later of the
1425 MIPS32 architecture. New MIPS processors, starting with the Warrior
1426 family, are based on a MIPS32r6 processor. If you own an older
1427 processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1429 config CPU_MIPS64_R1
1430 bool "MIPS64 Release 1"
1431 depends on SYS_HAS_CPU_MIPS64_R1
1432 select CPU_HAS_PREFETCH
1433 select CPU_SUPPORTS_32BIT_KERNEL
1434 select CPU_SUPPORTS_64BIT_KERNEL
1435 select CPU_SUPPORTS_HIGHMEM
1436 select CPU_SUPPORTS_HUGEPAGES
1438 Choose this option to build a kernel for release 1 or later of the
1439 MIPS64 architecture. Many modern embedded systems with a 64-bit
1440 MIPS processor are based on a MIPS64 processor. If you know the
1441 specific type of processor in your system, choose those that one
1442 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1443 Release 2 of the MIPS64 architecture is available since several
1444 years so chances are you even have a MIPS64 Release 2 processor
1445 in which case you should choose CPU_MIPS64_R2 instead for better
1448 config CPU_MIPS64_R2
1449 bool "MIPS64 Release 2"
1450 depends on SYS_HAS_CPU_MIPS64_R2
1451 select CPU_HAS_PREFETCH
1452 select CPU_SUPPORTS_32BIT_KERNEL
1453 select CPU_SUPPORTS_64BIT_KERNEL
1454 select CPU_SUPPORTS_HIGHMEM
1455 select CPU_SUPPORTS_HUGEPAGES
1456 select CPU_SUPPORTS_MSA
1458 Choose this option to build a kernel for release 2 or later of the
1459 MIPS64 architecture. Many modern embedded systems with a 64-bit
1460 MIPS processor are based on a MIPS64 processor. If you know the
1461 specific type of processor in your system, choose those that one
1462 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1464 config CPU_MIPS64_R6
1465 bool "MIPS64 Release 6"
1466 depends on SYS_HAS_CPU_MIPS64_R6
1467 select CPU_HAS_PREFETCH
1468 select CPU_SUPPORTS_32BIT_KERNEL
1469 select CPU_SUPPORTS_64BIT_KERNEL
1470 select CPU_SUPPORTS_HIGHMEM
1471 select CPU_SUPPORTS_MSA
1473 select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
1475 Choose this option to build a kernel for release 6 or later of the
1476 MIPS64 architecture. New MIPS processors, starting with the Warrior
1477 family, are based on a MIPS64r6 processor. If you own an older
1478 processor, you probably need to select MIPS64r1 or MIPS64r2 instead.
1482 depends on SYS_HAS_CPU_R3000
1484 select CPU_SUPPORTS_32BIT_KERNEL
1485 select CPU_SUPPORTS_HIGHMEM
1487 Please make sure to pick the right CPU type. Linux/MIPS is not
1488 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1489 *not* work on R4000 machines and vice versa. However, since most
1490 of the supported machines have an R4000 (or similar) CPU, R4x00
1491 might be a safe bet. If the resulting kernel does not work,
1492 try to recompile with R3000.
1496 depends on SYS_HAS_CPU_TX39XX
1497 select CPU_SUPPORTS_32BIT_KERNEL
1501 depends on SYS_HAS_CPU_VR41XX
1502 select CPU_SUPPORTS_32BIT_KERNEL
1503 select CPU_SUPPORTS_64BIT_KERNEL
1505 The options selects support for the NEC VR4100 series of processors.
1506 Only choose this option if you have one of these processors as a
1507 kernel built with this option will not run on any other type of
1508 processor or vice versa.
1512 depends on SYS_HAS_CPU_R4300
1513 select CPU_SUPPORTS_32BIT_KERNEL
1514 select CPU_SUPPORTS_64BIT_KERNEL
1516 MIPS Technologies R4300-series processors.
1520 depends on SYS_HAS_CPU_R4X00
1521 select CPU_SUPPORTS_32BIT_KERNEL
1522 select CPU_SUPPORTS_64BIT_KERNEL
1523 select CPU_SUPPORTS_HUGEPAGES
1525 MIPS Technologies R4000-series processors other than 4300, including
1526 the R4000, R4400, R4600, and 4700.
1530 depends on SYS_HAS_CPU_TX49XX
1531 select CPU_HAS_PREFETCH
1532 select CPU_SUPPORTS_32BIT_KERNEL
1533 select CPU_SUPPORTS_64BIT_KERNEL
1534 select CPU_SUPPORTS_HUGEPAGES
1538 depends on SYS_HAS_CPU_R5000
1539 select CPU_SUPPORTS_32BIT_KERNEL
1540 select CPU_SUPPORTS_64BIT_KERNEL
1541 select CPU_SUPPORTS_HUGEPAGES
1543 MIPS Technologies R5000-series processors other than the Nevada.
1547 depends on SYS_HAS_CPU_R5432
1548 select CPU_SUPPORTS_32BIT_KERNEL
1549 select CPU_SUPPORTS_64BIT_KERNEL
1550 select CPU_SUPPORTS_HUGEPAGES
1554 depends on SYS_HAS_CPU_R5500
1555 select CPU_SUPPORTS_32BIT_KERNEL
1556 select CPU_SUPPORTS_64BIT_KERNEL
1557 select CPU_SUPPORTS_HUGEPAGES
1559 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1564 depends on SYS_HAS_CPU_R6000
1565 select CPU_SUPPORTS_32BIT_KERNEL
1567 MIPS Technologies R6000 and R6000A series processors. Note these
1568 processors are extremely rare and the support for them is incomplete.
1572 depends on SYS_HAS_CPU_NEVADA
1573 select CPU_SUPPORTS_32BIT_KERNEL
1574 select CPU_SUPPORTS_64BIT_KERNEL
1575 select CPU_SUPPORTS_HUGEPAGES
1577 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1581 depends on SYS_HAS_CPU_R8000
1582 select CPU_HAS_PREFETCH
1583 select CPU_SUPPORTS_64BIT_KERNEL
1585 MIPS Technologies R8000 processors. Note these processors are
1586 uncommon and the support for them is incomplete.
1590 depends on SYS_HAS_CPU_R10000
1591 select CPU_HAS_PREFETCH
1592 select CPU_SUPPORTS_32BIT_KERNEL
1593 select CPU_SUPPORTS_64BIT_KERNEL
1594 select CPU_SUPPORTS_HIGHMEM
1595 select CPU_SUPPORTS_HUGEPAGES
1597 MIPS Technologies R10000-series processors.
1601 depends on SYS_HAS_CPU_RM7000
1602 select CPU_HAS_PREFETCH
1603 select CPU_SUPPORTS_32BIT_KERNEL
1604 select CPU_SUPPORTS_64BIT_KERNEL
1605 select CPU_SUPPORTS_HIGHMEM
1606 select CPU_SUPPORTS_HUGEPAGES
1610 depends on SYS_HAS_CPU_SB1
1611 select CPU_SUPPORTS_32BIT_KERNEL
1612 select CPU_SUPPORTS_64BIT_KERNEL
1613 select CPU_SUPPORTS_HIGHMEM
1614 select CPU_SUPPORTS_HUGEPAGES
1615 select WEAK_ORDERING
1617 config CPU_CAVIUM_OCTEON
1618 bool "Cavium Octeon processor"
1619 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1620 select CPU_HAS_PREFETCH
1621 select CPU_SUPPORTS_64BIT_KERNEL
1622 select WEAK_ORDERING
1623 select CPU_SUPPORTS_HIGHMEM
1624 select CPU_SUPPORTS_HUGEPAGES
1625 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1626 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1627 select MIPS_L1_CACHE_SHIFT_7
1629 The Cavium Octeon processor is a highly integrated chip containing
1630 many ethernet hardware widgets for networking tasks. The processor
1631 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1632 Full details can be found at http://www.caviumnetworks.com.
1635 bool "Broadcom BMIPS"
1636 depends on SYS_HAS_CPU_BMIPS
1638 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1639 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1640 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1641 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1642 select CPU_SUPPORTS_32BIT_KERNEL
1643 select DMA_NONCOHERENT
1645 select SWAP_IO_SPACE
1646 select WEAK_ORDERING
1647 select CPU_SUPPORTS_HIGHMEM
1648 select CPU_HAS_PREFETCH
1650 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1653 bool "Netlogic XLR SoC"
1654 depends on SYS_HAS_CPU_XLR
1655 select CPU_SUPPORTS_32BIT_KERNEL
1656 select CPU_SUPPORTS_64BIT_KERNEL
1657 select CPU_SUPPORTS_HIGHMEM
1658 select CPU_SUPPORTS_HUGEPAGES
1659 select WEAK_ORDERING
1660 select WEAK_REORDERING_BEYOND_LLSC
1662 Netlogic Microsystems XLR/XLS processors.
1665 bool "Netlogic XLP SoC"
1666 depends on SYS_HAS_CPU_XLP
1667 select CPU_SUPPORTS_32BIT_KERNEL
1668 select CPU_SUPPORTS_64BIT_KERNEL
1669 select CPU_SUPPORTS_HIGHMEM
1670 select WEAK_ORDERING
1671 select WEAK_REORDERING_BEYOND_LLSC
1672 select CPU_HAS_PREFETCH
1674 select CPU_SUPPORTS_HUGEPAGES
1676 Netlogic Microsystems XLP processors.
1679 config CPU_MIPS32_3_5_FEATURES
1680 bool "MIPS32 Release 3.5 Features"
1681 depends on SYS_HAS_CPU_MIPS32_R3_5
1682 depends on CPU_MIPS32_R2 || CPU_MIPS32_R6
1684 Choose this option to build a kernel for release 2 or later of the
1685 MIPS32 architecture including features from the 3.5 release such as
1686 support for Enhanced Virtual Addressing (EVA).
1688 config CPU_MIPS32_3_5_EVA
1689 bool "Enhanced Virtual Addressing (EVA)"
1690 depends on CPU_MIPS32_3_5_FEATURES
1694 Choose this option if you want to enable the Enhanced Virtual
1695 Addressing (EVA) on your MIPS32 core (such as proAptiv).
1696 One of its primary benefits is an increase in the maximum size
1697 of lowmem (up to 3GB). If unsure, say 'N' here.
1699 config CPU_MIPS32_R5_FEATURES
1700 bool "MIPS32 Release 5 Features"
1701 depends on SYS_HAS_CPU_MIPS32_R5
1702 depends on CPU_MIPS32_R2
1704 Choose this option to build a kernel for release 2 or later of the
1705 MIPS32 architecture including features from release 5 such as
1706 support for Extended Physical Addressing (XPA).
1708 config CPU_MIPS32_R5_XPA
1709 bool "Extended Physical Addressing (XPA)"
1710 depends on CPU_MIPS32_R5_FEATURES
1712 depends on !PAGE_SIZE_4KB
1713 depends on SYS_SUPPORTS_HIGHMEM
1716 select ARCH_PHYS_ADDR_T_64BIT
1719 Choose this option if you want to enable the Extended Physical
1720 Addressing (XPA) on your MIPS32 core (such as P5600 series). The
1721 benefit is to increase physical addressing equal to or greater
1722 than 40 bits. Note that this has the side effect of turning on
1723 64-bit addressing which in turn makes the PTEs 64-bit in size.
1724 If unsure, say 'N' here.
1727 config CPU_NOP_WORKAROUNDS
1730 config CPU_JUMP_WORKAROUNDS
1733 config CPU_LOONGSON2F_WORKAROUNDS
1734 bool "Loongson 2F Workarounds"
1736 select CPU_NOP_WORKAROUNDS
1737 select CPU_JUMP_WORKAROUNDS
1739 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1740 require workarounds. Without workarounds the system may hang
1741 unexpectedly. For more information please refer to the gas
1742 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1744 Loongson 2F03 and later have fixed these issues and no workarounds
1745 are needed. The workarounds have no significant side effect on them
1746 but may decrease the performance of the system so this option should
1747 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1750 If unsure, please say Y.
1751 endif # CPU_LOONGSON2F
1753 config SYS_SUPPORTS_ZBOOT
1755 select HAVE_KERNEL_GZIP
1756 select HAVE_KERNEL_BZIP2
1757 select HAVE_KERNEL_LZ4
1758 select HAVE_KERNEL_LZMA
1759 select HAVE_KERNEL_LZO
1760 select HAVE_KERNEL_XZ
1762 config SYS_SUPPORTS_ZBOOT_UART16550
1764 select SYS_SUPPORTS_ZBOOT
1766 config CPU_LOONGSON2
1768 select CPU_SUPPORTS_32BIT_KERNEL
1769 select CPU_SUPPORTS_64BIT_KERNEL
1770 select CPU_SUPPORTS_HIGHMEM
1771 select CPU_SUPPORTS_HUGEPAGES
1773 config CPU_LOONGSON1
1777 select CPU_HAS_PREFETCH
1778 select CPU_SUPPORTS_32BIT_KERNEL
1779 select CPU_SUPPORTS_HIGHMEM
1780 select CPU_SUPPORTS_CPUFREQ
1782 config CPU_BMIPS32_3300
1783 select SMP_UP if SMP
1786 config CPU_BMIPS4350
1788 select SYS_SUPPORTS_SMP
1789 select SYS_SUPPORTS_HOTPLUG_CPU
1791 config CPU_BMIPS4380
1793 select MIPS_L1_CACHE_SHIFT_6
1794 select SYS_SUPPORTS_SMP
1795 select SYS_SUPPORTS_HOTPLUG_CPU
1797 config CPU_BMIPS5000
1799 select MIPS_CPU_SCACHE
1800 select MIPS_L1_CACHE_SHIFT_7
1801 select SYS_SUPPORTS_SMP
1802 select SYS_SUPPORTS_HOTPLUG_CPU
1804 config SYS_HAS_CPU_LOONGSON3
1806 select CPU_SUPPORTS_CPUFREQ
1808 config SYS_HAS_CPU_LOONGSON2E
1811 config SYS_HAS_CPU_LOONGSON2F
1813 select CPU_SUPPORTS_CPUFREQ
1814 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1815 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1817 config SYS_HAS_CPU_LOONGSON1B
1820 config SYS_HAS_CPU_MIPS32_R1
1823 config SYS_HAS_CPU_MIPS32_R2
1826 config SYS_HAS_CPU_MIPS32_R3_5
1829 config SYS_HAS_CPU_MIPS32_R5
1832 config SYS_HAS_CPU_MIPS32_R6
1835 config SYS_HAS_CPU_MIPS64_R1
1838 config SYS_HAS_CPU_MIPS64_R2
1841 config SYS_HAS_CPU_MIPS64_R6
1844 config SYS_HAS_CPU_R3000
1847 config SYS_HAS_CPU_TX39XX
1850 config SYS_HAS_CPU_VR41XX
1853 config SYS_HAS_CPU_R4300
1856 config SYS_HAS_CPU_R4X00
1859 config SYS_HAS_CPU_TX49XX
1862 config SYS_HAS_CPU_R5000
1865 config SYS_HAS_CPU_R5432
1868 config SYS_HAS_CPU_R5500
1871 config SYS_HAS_CPU_R6000
1874 config SYS_HAS_CPU_NEVADA
1877 config SYS_HAS_CPU_R8000
1880 config SYS_HAS_CPU_R10000
1883 config SYS_HAS_CPU_RM7000
1886 config SYS_HAS_CPU_SB1
1889 config SYS_HAS_CPU_CAVIUM_OCTEON
1892 config SYS_HAS_CPU_BMIPS
1895 config SYS_HAS_CPU_BMIPS32_3300
1897 select SYS_HAS_CPU_BMIPS
1899 config SYS_HAS_CPU_BMIPS4350
1901 select SYS_HAS_CPU_BMIPS
1903 config SYS_HAS_CPU_BMIPS4380
1905 select SYS_HAS_CPU_BMIPS
1907 config SYS_HAS_CPU_BMIPS5000
1909 select SYS_HAS_CPU_BMIPS
1911 config SYS_HAS_CPU_XLR
1914 config SYS_HAS_CPU_XLP
1917 config MIPS_MALTA_PM
1918 depends on MIPS_MALTA
1924 # CPU may reorder R->R, R->W, W->R, W->W
1925 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1927 config WEAK_ORDERING
1931 # CPU may reorder reads and writes beyond LL/SC
1932 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1934 config WEAK_REORDERING_BEYOND_LLSC
1939 # These two indicate any level of the MIPS32 and MIPS64 architecture
1943 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6
1947 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6
1950 # These two indicate the revision of the architecture, either Release 1 or Release 2
1954 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1958 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1963 default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
1972 config SYS_SUPPORTS_32BIT_KERNEL
1974 config SYS_SUPPORTS_64BIT_KERNEL
1976 config CPU_SUPPORTS_32BIT_KERNEL
1978 config CPU_SUPPORTS_64BIT_KERNEL
1980 config CPU_SUPPORTS_CPUFREQ
1982 config CPU_SUPPORTS_ADDRWINCFG
1984 config CPU_SUPPORTS_HUGEPAGES
1986 config CPU_SUPPORTS_UNCACHED_ACCELERATED
1988 config MIPS_PGD_C0_CONTEXT
1990 default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
1993 # Set to y for ptrace access to watch registers.
1995 config HARDWARE_WATCHPOINTS
1997 default y if CPU_MIPSR1 || CPU_MIPSR2
2002 prompt "Kernel code model"
2004 You should only select this option if you have a workload that
2005 actually benefits from 64-bit processing or if your machine has
2006 large memory. You will only be presented a single option in this
2007 menu if your system does not support both 32-bit and 64-bit kernels.
2010 bool "32-bit kernel"
2011 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
2014 Select this option if you want to build a 32-bit kernel.
2017 bool "64-bit kernel"
2018 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
2020 Select this option if you want to build a 64-bit kernel.
2025 bool "KVM Guest Kernel"
2026 depends on BROKEN_ON_SMP
2028 Select this option if building a guest kernel for KVM (Trap & Emulate) mode
2030 config KVM_GUEST_TIMER_FREQ
2031 int "Count/Compare Timer Frequency (MHz)"
2032 depends on KVM_GUEST
2035 Set this to non-zero if building a guest kernel for KVM to skip RTC
2036 emulation when determining guest CPU Frequency. Instead, the guest's
2037 timer frequency is specified directly.
2040 prompt "Kernel page size"
2041 default PAGE_SIZE_4KB
2043 config PAGE_SIZE_4KB
2045 depends on !CPU_LOONGSON2 && !CPU_LOONGSON3
2047 This option select the standard 4kB Linux page size. On some
2048 R3000-family processors this is the only available page size. Using
2049 4kB page size will minimize memory consumption and is therefore
2050 recommended for low memory systems.
2052 config PAGE_SIZE_8KB
2054 depends on CPU_R8000 || CPU_CAVIUM_OCTEON
2056 Using 8kB page size will result in higher performance kernel at
2057 the price of higher memory consumption. This option is available
2058 only on R8000 and cnMIPS processors. Note that you will need a
2059 suitable Linux distribution to support this.
2061 config PAGE_SIZE_16KB
2063 depends on !CPU_R3000 && !CPU_TX39XX
2065 Using 16kB page size will result in higher performance kernel at
2066 the price of higher memory consumption. This option is available on
2067 all non-R3000 family processors. Note that you will need a suitable
2068 Linux distribution to support this.
2070 config PAGE_SIZE_32KB
2072 depends on CPU_CAVIUM_OCTEON
2074 Using 32kB page size will result in higher performance kernel at
2075 the price of higher memory consumption. This option is available
2076 only on cnMIPS cores. Note that you will need a suitable Linux
2077 distribution to support this.
2079 config PAGE_SIZE_64KB
2081 depends on !CPU_R3000 && !CPU_TX39XX
2083 Using 64kB page size will result in higher performance kernel at
2084 the price of higher memory consumption. This option is available on
2085 all non-R3000 family processor. Not that at the time of this
2086 writing this option is still high experimental.
2090 config FORCE_MAX_ZONEORDER
2091 int "Maximum zone order"
2092 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2093 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2094 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2095 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2096 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2097 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2101 The kernel memory allocator divides physically contiguous memory
2102 blocks into "zones", where each zone is a power of two number of
2103 pages. This option selects the largest power of two that the kernel
2104 keeps in the memory allocator. If you need to allocate very large
2105 blocks of physically contiguous memory, then you may need to
2106 increase this value.
2108 This config option is actually maximum order plus one. For example,
2109 a value of 11 means that the largest free memory block is 2^10 pages.
2111 The page size is not necessarily 4KB. Keep this in mind
2112 when choosing a value for this option.
2117 config IP22_CPU_SCACHE
2122 # Support for a MIPS32 / MIPS64 style S-caches
2124 config MIPS_CPU_SCACHE
2128 config R5000_CPU_SCACHE
2132 config RM7000_CPU_SCACHE
2136 config SIBYTE_DMA_PAGEOPS
2137 bool "Use DMA to clear/copy pages"
2140 Instead of using the CPU to zero and copy pages, use a Data Mover
2141 channel. These DMA channels are otherwise unused by the standard
2142 SiByte Linux port. Seems to give a small performance benefit.
2144 config CPU_HAS_PREFETCH
2147 config CPU_GENERIC_DUMP_TLB
2149 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
2153 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
2155 config CPU_R4K_CACHE_TLB
2157 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
2160 bool "MIPS MT SMP support (1 TC on each available VPE)"
2161 depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6
2162 select CPU_MIPSR2_IRQ_VI
2163 select CPU_MIPSR2_IRQ_EI
2165 select MIPS_GIC_IPI if MIPS_GIC
2169 select SYS_SUPPORTS_SMP
2170 select SYS_SUPPORTS_SCHED_SMT
2171 select MIPS_PERF_SHARED_TC_COUNTERS
2173 This is a kernel model which is known as SMVP. This is supported
2174 on cores with the MT ASE and uses the available VPEs to implement
2175 virtual processors which supports SMP. This is equivalent to the
2176 Intel Hyperthreading feature. For further information go to
2177 <http://www.imgtec.com/mips/mips-multithreading.asp>.
2183 bool "SMT (multithreading) scheduler support"
2184 depends on SYS_SUPPORTS_SCHED_SMT
2187 SMT scheduler support improves the CPU scheduler's decision making
2188 when dealing with MIPS MT enabled cores at a cost of slightly
2189 increased overhead in some places. If unsure say N here.
2191 config SYS_SUPPORTS_SCHED_SMT
2194 config SYS_SUPPORTS_MULTITHREADING
2197 config MIPS_MT_FPAFF
2198 bool "Dynamic FPU affinity for FP-intensive threads"
2200 depends on MIPS_MT_SMP
2202 config MIPSR2_TO_R6_EMULATOR
2203 bool "MIPS R2-to-R6 emulator"
2204 depends on CPU_MIPSR6 && !SMP
2207 Choose this option if you want to run non-R6 MIPS userland code.
2208 Even if you say 'Y' here, the emulator will still be disabled by
2209 default. You can enable it using the 'mipsr2emu' kernel option.
2210 The only reason this is a build-time option is to save ~14K from the
2212 comment "MIPS R2-to-R6 emulator is only available for UP kernels"
2213 depends on SMP && CPU_MIPSR6
2215 config MIPS_VPE_LOADER
2216 bool "VPE loader support."
2217 depends on SYS_SUPPORTS_MULTITHREADING && MODULES
2218 select CPU_MIPSR2_IRQ_VI
2219 select CPU_MIPSR2_IRQ_EI
2222 Includes a loader for loading an elf relocatable object
2223 onto another VPE and running it.
2225 config MIPS_VPE_LOADER_CMP
2228 depends on MIPS_VPE_LOADER && MIPS_CMP
2230 config MIPS_VPE_LOADER_MT
2233 depends on MIPS_VPE_LOADER && !MIPS_CMP
2235 config MIPS_VPE_LOADER_TOM
2236 bool "Load VPE program into memory hidden from linux"
2237 depends on MIPS_VPE_LOADER
2240 The loader can use memory that is present but has been hidden from
2241 Linux using the kernel command line option "mem=xxMB". It's up to
2242 you to ensure the amount you put in the option and the space your
2243 program requires is less or equal to the amount physically present.
2245 config MIPS_VPE_APSP_API
2246 bool "Enable support for AP/SP API (RTLX)"
2247 depends on MIPS_VPE_LOADER
2250 config MIPS_VPE_APSP_API_CMP
2253 depends on MIPS_VPE_APSP_API && MIPS_CMP
2255 config MIPS_VPE_APSP_API_MT
2258 depends on MIPS_VPE_APSP_API && !MIPS_CMP
2261 bool "MIPS CMP framework support (DEPRECATED)"
2262 depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6
2263 select MIPS_GIC_IPI if MIPS_GIC
2266 select SYS_SUPPORTS_SMP
2267 select WEAK_ORDERING
2270 Select this if you are using a bootloader which implements the "CMP
2271 framework" protocol (ie. YAMON) and want your kernel to make use of
2272 its ability to start secondary CPUs.
2274 Unless you have a specific need, you should use CONFIG_MIPS_CPS
2278 bool "MIPS Coherent Processing System support"
2279 depends on SYS_SUPPORTS_MIPS_CPS && !CPU_MIPSR6
2282 select MIPS_CPS_PM if HOTPLUG_CPU
2283 select MIPS_GIC_IPI if MIPS_GIC
2285 select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2286 select SYS_SUPPORTS_HOTPLUG_CPU
2287 select SYS_SUPPORTS_SMP
2288 select WEAK_ORDERING
2290 Select this if you wish to run an SMP kernel across multiple cores
2291 within a MIPS Coherent Processing System. When this option is
2292 enabled the kernel will probe for other cores and boot them with
2293 no external assistance. It is safe to enable this when hardware
2294 support is unavailable.
2311 config SB1_PASS_2_WORKAROUNDS
2313 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2316 config SB1_PASS_2_1_WORKAROUNDS
2318 depends on CPU_SB1 && CPU_SB1_PASS_2
2322 config ARCH_PHYS_ADDR_T_64BIT
2326 prompt "SmartMIPS or microMIPS ASE support"
2328 config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
2331 Select this if you want neither microMIPS nor SmartMIPS support
2333 config CPU_HAS_SMARTMIPS
2334 depends on SYS_SUPPORTS_SMARTMIPS
2337 SmartMIPS is a extension of the MIPS32 architecture aimed at
2338 increased security at both hardware and software level for
2339 smartcards. Enabling this option will allow proper use of the
2340 SmartMIPS instructions by Linux applications. However a kernel with
2341 this option will not work on a MIPS core without SmartMIPS core. If
2342 you don't know you probably don't have SmartMIPS and should say N
2345 config CPU_MICROMIPS
2346 depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2349 When this option is enabled the kernel will be built using the
2355 bool "Support for the MIPS SIMD Architecture"
2356 depends on CPU_SUPPORTS_MSA
2357 depends on 64BIT || MIPS_O32_FP64_SUPPORT
2359 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2360 and a set of SIMD instructions to operate on them. When this option
2361 is enabled the kernel will support allocating & switching MSA
2362 vector register contexts. If you know that your kernel will only be
2363 running on CPUs which do not support MSA or that your userland will
2364 not be making use of it then you may wish to say N here to reduce
2365 the size & complexity of your kernel.
2376 # Vectored interrupt mode is an R2 feature
2378 config CPU_MIPSR2_IRQ_VI
2382 # Extended interrupt mode is an R2 feature
2384 config CPU_MIPSR2_IRQ_EI
2389 depends on !CPU_R3000
2395 config CPU_DADDI_WORKAROUNDS
2398 config CPU_R4000_WORKAROUNDS
2400 select CPU_R4400_WORKAROUNDS
2402 config CPU_R4400_WORKAROUNDS
2406 # - Highmem only makes sense for the 32-bit kernel.
2407 # - The current highmem code will only work properly on physically indexed
2408 # caches such as R3000, SB1, R7000 or those that look like they're virtually
2409 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2410 # moment we protect the user and offer the highmem option only on machines
2411 # where it's known to be safe. This will not offer highmem on a few systems
2412 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2413 # indexed CPUs but we're playing safe.
2414 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2415 # know they might have memory configurations that could make use of highmem
2419 bool "High Memory Support"
2420 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2422 config CPU_SUPPORTS_HIGHMEM
2425 config SYS_SUPPORTS_HIGHMEM
2428 config SYS_SUPPORTS_SMARTMIPS
2431 config SYS_SUPPORTS_MICROMIPS
2434 config SYS_SUPPORTS_MIPS16
2437 This option must be set if a kernel might be executed on a MIPS16-
2438 enabled CPU even if MIPS16 is not actually being used. In other
2439 words, it makes the kernel MIPS16-tolerant.
2441 config CPU_SUPPORTS_MSA
2444 config ARCH_FLATMEM_ENABLE
2446 depends on !NUMA && !CPU_LOONGSON2
2448 config ARCH_DISCONTIGMEM_ENABLE
2450 default y if SGI_IP27
2452 Say Y to support efficient handling of discontiguous physical memory,
2453 for architectures which are either NUMA (Non-Uniform Memory Access)
2454 or have huge holes in the physical address space for other reasons.
2455 See <file:Documentation/vm/numa> for more.
2457 config ARCH_SPARSEMEM_ENABLE
2459 select SPARSEMEM_STATIC
2463 depends on SYS_SUPPORTS_NUMA
2465 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2466 Access). This option improves performance on systems with more
2467 than two nodes; on two node systems it is generally better to
2468 leave it disabled; on single node systems disable this option
2471 config SYS_SUPPORTS_NUMA
2477 depends on NEED_MULTIPLE_NODES
2479 config HW_PERF_EVENTS
2480 bool "Enable hardware performance counter support for perf events"
2481 depends on PERF_EVENTS && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3)
2484 Enable hardware performance counter support for perf events. If
2485 disabled, perf events will use software events only.
2490 bool "Multi-Processing support"
2491 depends on SYS_SUPPORTS_SMP
2493 This enables support for systems with more than one CPU. If you have
2494 a system with only one CPU, say N. If you have a system with more
2495 than one CPU, say Y.
2497 If you say N here, the kernel will run on uni- and multiprocessor
2498 machines, but will use only one CPU of a multiprocessor machine. If
2499 you say Y here, the kernel will run on many, but not all,
2500 uniprocessor machines. On a uniprocessor machine, the kernel
2501 will run faster if you say N here.
2503 People using multiprocessor machines who say Y here should also say
2504 Y to "Enhanced Real Time Clock Support", below.
2506 See also the SMP-HOWTO available at
2507 <http://www.tldp.org/docs.html#howto>.
2509 If you don't know what to do here, say N.
2514 config SYS_SUPPORTS_MIPS_CMP
2517 config SYS_SUPPORTS_MIPS_CPS
2520 config SYS_SUPPORTS_SMP
2523 config NR_CPUS_DEFAULT_4
2526 config NR_CPUS_DEFAULT_8
2529 config NR_CPUS_DEFAULT_16
2532 config NR_CPUS_DEFAULT_32
2535 config NR_CPUS_DEFAULT_64
2539 int "Maximum number of CPUs (2-256)"
2542 default "4" if NR_CPUS_DEFAULT_4
2543 default "8" if NR_CPUS_DEFAULT_8
2544 default "16" if NR_CPUS_DEFAULT_16
2545 default "32" if NR_CPUS_DEFAULT_32
2546 default "64" if NR_CPUS_DEFAULT_64
2548 This allows you to specify the maximum number of CPUs which this
2549 kernel will support. The maximum supported value is 32 for 32-bit
2550 kernel and 64 for 64-bit kernels; the minimum value which makes
2551 sense is 1 for Qemu (useful only for kernel debugging purposes)
2552 and 2 for all others.
2554 This is purely to save memory - each supported CPU adds
2555 approximately eight kilobytes to the kernel image. For best
2556 performance should round up your number of processors to the next
2559 config MIPS_PERF_SHARED_TC_COUNTERS
2563 # Timer Interrupt Frequency Configuration
2567 prompt "Timer frequency"
2570 Allows the configuration of the timer frequency.
2573 bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ
2576 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2579 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2582 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2585 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2588 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2591 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2594 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2598 config SYS_SUPPORTS_24HZ
2601 config SYS_SUPPORTS_48HZ
2604 config SYS_SUPPORTS_100HZ
2607 config SYS_SUPPORTS_128HZ
2610 config SYS_SUPPORTS_250HZ
2613 config SYS_SUPPORTS_256HZ
2616 config SYS_SUPPORTS_1000HZ
2619 config SYS_SUPPORTS_1024HZ
2622 config SYS_SUPPORTS_ARBIT_HZ
2624 default y if !SYS_SUPPORTS_24HZ && \
2625 !SYS_SUPPORTS_48HZ && \
2626 !SYS_SUPPORTS_100HZ && \
2627 !SYS_SUPPORTS_128HZ && \
2628 !SYS_SUPPORTS_250HZ && \
2629 !SYS_SUPPORTS_256HZ && \
2630 !SYS_SUPPORTS_1000HZ && \
2631 !SYS_SUPPORTS_1024HZ
2637 default 100 if HZ_100
2638 default 128 if HZ_128
2639 default 250 if HZ_250
2640 default 256 if HZ_256
2641 default 1000 if HZ_1000
2642 default 1024 if HZ_1024
2645 def_bool HIGH_RES_TIMERS
2647 source "kernel/Kconfig.preempt"
2650 bool "Kexec system call"
2653 kexec is a system call that implements the ability to shutdown your
2654 current kernel, and to start another kernel. It is like a reboot
2655 but it is independent of the system firmware. And like a reboot
2656 you can start any kernel with it, not just Linux.
2658 The name comes from the similarity to the exec system call.
2660 It is an ongoing process to be certain the hardware in a machine
2661 is properly shutdown, so do not be surprised if this code does not
2662 initially work for you. As of this writing the exact hardware
2663 interface is strongly in flux, so no good recommendation can be
2667 bool "Kernel crash dumps"
2669 Generate crash dump after being started by kexec.
2670 This should be normally only set in special crash dump kernels
2671 which are loaded in the main kernel with kexec-tools into
2672 a specially reserved region and then later executed after
2673 a crash by kdump/kexec. The crash dump kernel must be compiled
2674 to a memory address not used by the main kernel or firmware using
2677 config PHYSICAL_START
2678 hex "Physical address where the kernel is loaded"
2679 default "0xffffffff84000000" if 64BIT
2680 default "0x84000000" if 32BIT
2681 depends on CRASH_DUMP
2683 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2684 If you plan to use kernel for capturing the crash dump change
2685 this value to start of the reserved region (the "X" value as
2686 specified in the "crashkernel=YM@XM" command line boot parameter
2687 passed to the panic-ed kernel).
2690 bool "Enable seccomp to safely compute untrusted bytecode"
2694 This kernel feature is useful for number crunching applications
2695 that may need to compute untrusted bytecode during their
2696 execution. By using pipes or other transports made available to
2697 the process as file descriptors supporting the read/write
2698 syscalls, it's possible to isolate those applications in
2699 their own address space using seccomp. Once seccomp is
2700 enabled via /proc/<pid>/seccomp, it cannot be disabled
2701 and the task is only allowed to execute a few safe syscalls
2702 defined by each seccomp mode.
2704 If unsure, say Y. Only embedded should say N here.
2706 config MIPS_O32_FP64_SUPPORT
2707 bool "Support for O32 binaries using 64-bit FP"
2708 depends on 32BIT || MIPS32_O32
2710 When this is enabled, the kernel will support use of 64-bit floating
2711 point registers with binaries using the O32 ABI along with the
2712 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
2713 32-bit MIPS systems this support is at the cost of increasing the
2714 size and complexity of the compiled FPU emulator. Thus if you are
2715 running a MIPS32 system and know that none of your userland binaries
2716 will require 64-bit floating point, you may wish to reduce the size
2717 of your kernel & potentially improve FP emulation performance by
2720 Although binutils currently supports use of this flag the details
2721 concerning its effect upon the O32 ABI in userland are still being
2722 worked on. In order to avoid userland becoming dependant upon current
2723 behaviour before the details have been finalised, this option should
2724 be considered experimental and only enabled by those working upon
2732 select OF_EARLY_FLATTREE
2739 prompt "Kernel appended dtb support" if USE_OF
2740 default MIPS_NO_APPENDED_DTB
2742 config MIPS_NO_APPENDED_DTB
2745 Do not enable appended dtb support.
2747 config MIPS_ELF_APPENDED_DTB
2750 With this option, the boot code will look for a device tree binary
2751 DTB) included in the vmlinux ELF section .appended_dtb. By default
2752 it is empty and the DTB can be appended using binutils command
2755 objcopy --update-section .appended_dtb=<filename>.dtb vmlinux
2757 This is meant as a backward compatiblity convenience for those
2758 systems with a bootloader that can't be upgraded to accommodate
2759 the documented boot protocol using a device tree.
2761 config MIPS_RAW_APPENDED_DTB
2764 With this option, the boot code will look for a device tree binary
2765 DTB) appended to raw vmlinux.bin (without decompressor).
2766 (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb).
2768 This is meant as a backward compatibility convenience for those
2769 systems with a bootloader that can't be upgraded to accommodate
2770 the documented boot protocol using a device tree.
2772 Beware that there is very little in terms of protection against
2773 this option being confused by leftover garbage in memory that might
2774 look like a DTB header after a reboot if no actual DTB is appended
2775 to vmlinux.bin. Do not leave this option active in a production kernel
2776 if you don't intend to always append a DTB.
2778 config MIPS_ZBOOT_APPENDED_DTB
2780 depends on SYS_SUPPORTS_ZBOOT
2782 With this option, the boot code will look for a device tree binary
2783 DTB) appended to raw vmlinuz.bin (with decompressor).
2784 (e.g. cat vmlinuz.bin <filename>.dtb > vmlinuz_w_dtb).
2786 This is meant as a backward compatibility convenience for those
2787 systems with a bootloader that can't be upgraded to accommodate
2788 the documented boot protocol using a device tree.
2790 Beware that there is very little in terms of protection against
2791 this option being confused by leftover garbage in memory that might
2792 look like a DTB header after a reboot if no actual DTB is appended
2793 to vmlinuz.bin. Do not leave this option active in a production kernel
2794 if you don't intend to always append a DTB.
2798 prompt "Kernel command line type" if !CMDLINE_OVERRIDE
2799 default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
2800 !MIPS_MALTA && !MIPS_SEAD3 && \
2802 default MIPS_CMDLINE_FROM_BOOTLOADER
2804 config MIPS_CMDLINE_FROM_DTB
2806 bool "Dtb kernel arguments if available"
2808 config MIPS_CMDLINE_DTB_EXTEND
2810 bool "Extend dtb kernel arguments with bootloader arguments"
2812 config MIPS_CMDLINE_FROM_BOOTLOADER
2813 bool "Bootloader kernel arguments if available"
2818 config LOCKDEP_SUPPORT
2822 config STACKTRACE_SUPPORT
2826 config HAVE_LATENCYTOP_SUPPORT
2830 config PGTABLE_LEVELS
2832 default 3 if 64BIT && !PAGE_SIZE_64KB
2835 source "init/Kconfig"
2837 source "kernel/Kconfig.freezer"
2839 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2847 bool "Support for PCI controller"
2848 depends on HW_HAS_PCI
2850 select NO_GENERIC_PCI_IOPORT_MAP
2852 Find out whether you have a PCI motherboard. PCI is the name of a
2853 bus system, i.e. the way the CPU talks to the other stuff inside
2854 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2858 bool "Support for HT-linked PCI"
2860 depends on CPU_LOONGSON3
2864 Loongson family machines use Hyper-Transport bus for inter-core
2865 connection and device connection. The PCI bus is a subordinate
2866 linked at HT. Choose Y for Loongson-3 based machines.
2871 source "drivers/pci/Kconfig"
2873 source "drivers/pci/pcie/Kconfig"
2876 # ISA support is now enabled via select. Too many systems still have the one
2877 # or other ISA chip on the board that users don't know about so don't expect
2878 # users to choose the right thing ...
2885 depends on HW_HAS_EISA
2887 select GENERIC_ISA_DMA
2889 The Extended Industry Standard Architecture (EISA) bus was
2890 developed as an open alternative to the IBM MicroChannel bus.
2892 The EISA bus provided some of the features of the IBM MicroChannel
2893 bus while maintaining backward compatibility with cards made for
2894 the older ISA bus. The EISA bus saw limited use between 1988 and
2895 1995 when it was made obsolete by the PCI bus.
2897 Say Y here if you are building a kernel for an EISA-based machine.
2901 source "drivers/eisa/Kconfig"
2904 bool "TURBOchannel support"
2905 depends on MACH_DECSTATION
2907 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2908 processors. TURBOchannel programming specifications are available
2910 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2912 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2913 Linux driver support status is documented at:
2914 <http://www.linux-mips.org/wiki/DECstation>
2924 select MIPS_EXTERNAL_TIMER
2932 source "drivers/pcmcia/Kconfig"
2934 source "drivers/pci/hotplug/Kconfig"
2937 tristate "RapidIO support"
2941 If you say Y here, the kernel will include drivers and
2942 infrastructure code to support RapidIO interconnect devices.
2944 source "drivers/rapidio/Kconfig"
2948 menu "Executable file formats"
2950 source "fs/Kconfig.binfmt"
2955 config MIPS32_COMPAT
2961 config SYSVIPC_COMPAT
2965 bool "Kernel support for o32 binaries"
2967 select ARCH_WANT_OLD_COMPAT_IPC
2969 select MIPS32_COMPAT
2970 select SYSVIPC_COMPAT if SYSVIPC
2972 Select this option if you want to run o32 binaries. These are pure
2973 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2974 existing binaries are in this format.
2979 bool "Kernel support for n32 binaries"
2981 select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
2983 select MIPS32_COMPAT
2984 select SYSVIPC_COMPAT if SYSVIPC
2986 Select this option if you want to run n32 binaries. These are
2987 64-bit binaries using 32-bit quantities for addressing and certain
2988 data that would normally be 64-bit. They are used in special
2995 default y if MIPS32_O32 || MIPS32_N32
3000 menu "Power management options"
3002 config ARCH_HIBERNATION_POSSIBLE
3004 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3006 config ARCH_SUSPEND_POSSIBLE
3008 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3010 source "kernel/power/Kconfig"
3014 config MIPS_EXTERNAL_TIMER
3017 menu "CPU Power Management"
3019 if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
3020 source "drivers/cpufreq/Kconfig"
3023 source "drivers/cpuidle/Kconfig"
3027 source "net/Kconfig"
3029 source "drivers/Kconfig"
3031 source "drivers/firmware/Kconfig"
3035 source "arch/mips/Kconfig.debug"
3037 source "security/Kconfig"
3039 source "crypto/Kconfig"
3041 source "lib/Kconfig"
3043 source "arch/mips/kvm/Kconfig"