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
13 select HAVE_PERF_EVENTS
14 select PERF_USE_VMALLOC
16 select HAVE_ARCH_SECCOMP_FILTER
17 select HAVE_ARCH_TRACEHOOK
18 select HAVE_CBPF_JIT if !CPU_MICROMIPS
19 select HAVE_FUNCTION_TRACER
20 select HAVE_DYNAMIC_FTRACE
21 select HAVE_FTRACE_MCOUNT_RECORD
22 select HAVE_C_RECORDMCOUNT
23 select HAVE_FUNCTION_GRAPH_TRACER
25 select HAVE_KRETPROBES
26 select HAVE_SYSCALL_TRACEPOINTS
27 select HAVE_DEBUG_KMEMLEAK
28 select HAVE_SYSCALL_TRACEPOINTS
29 select ARCH_HAS_ELF_RANDOMIZE
30 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT
31 select RTC_LIB if !MACH_LOONGSON64
32 select GENERIC_ATOMIC64 if !64BIT
33 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
34 select HAVE_DMA_CONTIGUOUS
35 select HAVE_DMA_API_DEBUG
36 select GENERIC_IRQ_PROBE
37 select GENERIC_IRQ_SHOW
38 select GENERIC_PCI_IOMAP
39 select HAVE_ARCH_JUMP_LABEL
40 select ARCH_WANT_IPC_PARSE_VERSION
41 select IRQ_FORCED_THREADING
43 select HAVE_MEMBLOCK_NODE_MAP
44 select ARCH_DISCARD_MEMBLOCK
45 select GENERIC_SMP_IDLE_THREAD
46 select BUILDTIME_EXTABLE_SORT
47 select GENERIC_CLOCKEVENTS
48 select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC
49 select GENERIC_CMOS_UPDATE
50 select HAVE_MOD_ARCH_SPECIFIC
53 select MODULES_USE_ELF_REL if MODULES
54 select MODULES_USE_ELF_RELA if MODULES && 64BIT
55 select CLONE_BACKWARDS
56 select HAVE_DEBUG_STACKOVERFLOW
57 select HAVE_CC_STACKPROTECTOR
58 select CPU_PM if CPU_IDLE
59 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
60 select ARCH_BINFMT_ELF_STATE
61 select SYSCTL_EXCEPTION_TRACE
62 select HAVE_VIRT_CPU_ACCOUNTING_GEN
63 select HAVE_IRQ_TIME_ACCOUNTING
64 select GENERIC_TIME_VSYSCALL
65 select ARCH_CLOCKSOURCE_DATA
66 select HANDLE_DOMAIN_IRQ
68 menu "Machine selection"
75 bool "Alchemy processor based machines"
76 select ARCH_PHYS_ADDR_T_64BIT
80 select DMA_MAYBE_COHERENT # Au1000,1500,1100 aren't, rest is
81 select SYS_HAS_CPU_MIPS32_R1
82 select SYS_SUPPORTS_32BIT_KERNEL
83 select SYS_SUPPORTS_APM_EMULATION
85 select SYS_SUPPORTS_ZBOOT
89 bool "Texas Instruments AR7"
91 select DMA_NONCOHERENT
97 select SYS_HAS_CPU_MIPS32_R1
98 select SYS_HAS_EARLY_PRINTK
99 select SYS_SUPPORTS_32BIT_KERNEL
100 select SYS_SUPPORTS_LITTLE_ENDIAN
101 select SYS_SUPPORTS_MIPS16
102 select SYS_SUPPORTS_ZBOOT_UART16550
107 Support for the Texas Instruments AR7 System-on-a-Chip
108 family: TNETD7100, 7200 and 7300.
111 bool "Atheros AR231x/AR531x SoC support"
114 select DMA_NONCOHERENT
117 select SYS_HAS_CPU_MIPS32_R1
118 select SYS_SUPPORTS_BIG_ENDIAN
119 select SYS_SUPPORTS_32BIT_KERNEL
120 select SYS_HAS_EARLY_PRINTK
122 Support for Atheros AR231x and Atheros AR531x based boards
125 bool "Atheros AR71XX/AR724X/AR913X based boards"
126 select ARCH_HAS_RESET_CONTROLLER
130 select DMA_NONCOHERENT
137 select SYS_HAS_CPU_MIPS32_R2
138 select SYS_HAS_EARLY_PRINTK
139 select SYS_SUPPORTS_32BIT_KERNEL
140 select SYS_SUPPORTS_BIG_ENDIAN
141 select SYS_SUPPORTS_MIPS16
142 select SYS_SUPPORTS_ZBOOT_UART_PROM
145 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
148 bool "Broadcom Generic BMIPS kernel"
150 select NO_EXCEPT_FILL
156 select BCM6345_L1_IRQ
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"
186 select DMA_NONCOHERENT
189 select SYS_HAS_CPU_MIPS32_R1
190 select NO_EXCEPT_FILL
191 select SYS_SUPPORTS_32BIT_KERNEL
192 select SYS_SUPPORTS_LITTLE_ENDIAN
193 select SYS_SUPPORTS_MIPS16
194 select SYS_HAS_EARLY_PRINTK
195 select USE_GENERIC_EARLY_PRINTK_8250
197 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
217 select MIPS_L1_CACHE_SHIFT_4
219 Support for BCM63XX based boards
226 select DMA_NONCOHERENT
232 select PCI_GT64XXX_PCI0
234 select SYS_HAS_CPU_NEVADA
235 select SYS_HAS_EARLY_PRINTK
236 select SYS_SUPPORTS_32BIT_KERNEL
237 select SYS_SUPPORTS_64BIT_KERNEL
238 select SYS_SUPPORTS_LITTLE_ENDIAN
239 select USE_GENERIC_EARLY_PRINTK_8250
241 config MACH_DECSTATION
245 select CEVT_R4K if CPU_R4X00
247 select CSRC_R4K if CPU_R4X00
248 select CPU_DADDI_WORKAROUNDS if 64BIT
249 select CPU_R4000_WORKAROUNDS if 64BIT
250 select CPU_R4400_WORKAROUNDS if 64BIT
251 select DMA_NONCOHERENT
254 select SYS_HAS_CPU_R3000
255 select SYS_HAS_CPU_R4X00
256 select SYS_SUPPORTS_32BIT_KERNEL
257 select SYS_SUPPORTS_64BIT_KERNEL
258 select SYS_SUPPORTS_LITTLE_ENDIAN
259 select SYS_SUPPORTS_128HZ
260 select SYS_SUPPORTS_256HZ
261 select SYS_SUPPORTS_1024HZ
262 select MIPS_L1_CACHE_SHIFT_4
264 This enables support for DEC's MIPS based workstations. For details
265 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
266 DECstation porting pages on <http://decstation.unix-ag.org/>.
268 If you have one of the following DECstation Models you definitely
269 want to choose R4xx0 for the CPU Type:
276 otherwise choose R3000.
279 bool "Jazz family of machines"
282 select ARCH_MAY_HAVE_PC_FDC
285 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
286 select GENERIC_ISA_DMA
287 select HAVE_PCSPKR_PLATFORM
292 select SYS_HAS_CPU_R4X00
293 select SYS_SUPPORTS_32BIT_KERNEL
294 select SYS_SUPPORTS_64BIT_KERNEL
295 select SYS_SUPPORTS_100HZ
297 This a family of machines based on the MIPS R4030 chipset which was
298 used by several vendors to build RISC/os and Windows NT workstations.
299 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
300 Olivetti M700-10 workstations.
303 bool "Ingenic SoC based machines"
304 select SYS_SUPPORTS_32BIT_KERNEL
305 select SYS_SUPPORTS_LITTLE_ENDIAN
306 select SYS_SUPPORTS_ZBOOT_UART16550
307 select DMA_NONCOHERENT
311 select GENERIC_IRQ_CHIP
317 bool "Lantiq based platforms"
318 select DMA_NONCOHERENT
322 select SYS_HAS_CPU_MIPS32_R1
323 select SYS_HAS_CPU_MIPS32_R2
324 select SYS_SUPPORTS_BIG_ENDIAN
325 select SYS_SUPPORTS_32BIT_KERNEL
326 select SYS_SUPPORTS_MIPS16
327 select SYS_SUPPORTS_MULTITHREADING
328 select SYS_HAS_EARLY_PRINTK
335 select PINCTRL_LANTIQ
336 select ARCH_HAS_RESET_CONTROLLER
337 select RESET_CONTROLLER
340 bool "LASAT Networks platforms"
344 select DMA_NONCOHERENT
345 select SYS_HAS_EARLY_PRINTK
348 select PCI_GT64XXX_PCI0
350 select R5000_CPU_SCACHE
351 select SYS_HAS_CPU_R5000
352 select SYS_SUPPORTS_32BIT_KERNEL
353 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
354 select SYS_SUPPORTS_LITTLE_ENDIAN
356 config MACH_LOONGSON32
357 bool "Loongson-1 family of machines"
358 select SYS_SUPPORTS_ZBOOT
360 This enables support for the Loongson-1 family of machines.
362 Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by
363 the Institute of Computing Technology (ICT), Chinese Academy of
366 config MACH_LOONGSON64
367 bool "Loongson-2/3 family of machines"
368 select SYS_SUPPORTS_ZBOOT
370 This enables the support of Loongson-2/3 family of machines.
372 Loongson-2 is a family of single-core CPUs and Loongson-3 is a
373 family of multi-core CPUs. They are both 64-bit general-purpose
374 MIPS-compatible CPUs. Loongson-2/3 are developed by the Institute
375 of Computing Technology (ICT), Chinese Academy of Sciences (CAS)
376 in the People's Republic of China. The chief architect is Professor
379 config MACH_PISTACHIO
380 bool "IMG Pistachio SoC based boards"
384 select CLKSRC_MIPS_GIC
387 select DMA_NONCOHERENT
392 select MIPS_CPU_SCACHE
396 select SYS_HAS_CPU_MIPS32_R2
397 select SYS_SUPPORTS_32BIT_KERNEL
398 select SYS_SUPPORTS_LITTLE_ENDIAN
399 select SYS_SUPPORTS_MIPS_CPS
400 select SYS_SUPPORTS_MULTITHREADING
401 select SYS_SUPPORTS_RELOCATABLE
402 select SYS_SUPPORTS_ZBOOT
403 select SYS_HAS_EARLY_PRINTK
404 select USE_GENERIC_EARLY_PRINTK_8250
407 This enables support for the IMG Pistachio SoC platform.
410 bool "MIPSfpga Xilinx based boards"
420 select MIPS_CPU_SCACHE
421 select SYS_HAS_EARLY_PRINTK
422 select SYS_HAS_CPU_MIPS32_R2
423 select SYS_SUPPORTS_32BIT_KERNEL
424 select SYS_SUPPORTS_LITTLE_ENDIAN
425 select SYS_SUPPORTS_ZBOOT_UART16550
427 select USE_GENERIC_EARLY_PRINTK_8250
429 This enables support for the IMG University Program MIPSfpga platform.
432 bool "MIPS Malta board"
433 select ARCH_MAY_HAVE_PC_FDC
439 select CLKSRC_MIPS_GIC
441 select DMA_MAYBE_COHERENT
442 select GENERIC_ISA_DMA
443 select HAVE_PCSPKR_PLATFORM
450 select MIPS_CPU_SCACHE
451 select MIPS_L1_CACHE_SHIFT_6
452 select PCI_GT64XXX_PCI0
456 select SYS_HAS_CPU_MIPS32_R1
457 select SYS_HAS_CPU_MIPS32_R2
458 select SYS_HAS_CPU_MIPS32_R3_5
459 select SYS_HAS_CPU_MIPS32_R5
460 select SYS_HAS_CPU_MIPS32_R6
461 select SYS_HAS_CPU_MIPS64_R1
462 select SYS_HAS_CPU_MIPS64_R2
463 select SYS_HAS_CPU_MIPS64_R6
464 select SYS_HAS_CPU_NEVADA
465 select SYS_HAS_CPU_RM7000
466 select SYS_SUPPORTS_32BIT_KERNEL
467 select SYS_SUPPORTS_64BIT_KERNEL
468 select SYS_SUPPORTS_BIG_ENDIAN
469 select SYS_SUPPORTS_HIGHMEM
470 select SYS_SUPPORTS_LITTLE_ENDIAN
471 select SYS_SUPPORTS_MICROMIPS
472 select SYS_SUPPORTS_MIPS_CMP
473 select SYS_SUPPORTS_MIPS_CPS
474 select SYS_SUPPORTS_MIPS16
475 select SYS_SUPPORTS_MULTITHREADING
476 select SYS_SUPPORTS_SMARTMIPS
477 select SYS_SUPPORTS_ZBOOT
478 select SYS_SUPPORTS_RELOCATABLE
480 select ZONE_DMA32 if 64BIT
484 This enables support for the MIPS Technologies Malta evaluation
488 bool "Microchip PIC32 Family"
490 This enables support for the Microchip PIC32 family of platforms.
492 Microchip PIC32 is a family of general-purpose 32 bit MIPS core
496 bool "MIPS SEAD3 board"
502 select CLKSRC_MIPS_GIC
504 select CPU_MIPSR2_IRQ_VI
505 select CPU_MIPSR2_IRQ_EI
506 select DMA_NONCOHERENT
511 select SYS_HAS_CPU_MIPS32_R1
512 select SYS_HAS_CPU_MIPS32_R2
513 select SYS_HAS_CPU_MIPS32_R6
514 select SYS_HAS_CPU_MIPS64_R1
515 select SYS_HAS_EARLY_PRINTK
516 select SYS_SUPPORTS_32BIT_KERNEL
517 select SYS_SUPPORTS_64BIT_KERNEL
518 select SYS_SUPPORTS_BIG_ENDIAN
519 select SYS_SUPPORTS_LITTLE_ENDIAN
520 select SYS_SUPPORTS_SMARTMIPS
521 select SYS_SUPPORTS_MICROMIPS
522 select SYS_SUPPORTS_MIPS16
523 select SYS_SUPPORTS_RELOCATABLE
524 select USB_EHCI_BIG_ENDIAN_DESC
525 select USB_EHCI_BIG_ENDIAN_MMIO
528 This enables support for the MIPS Technologies SEAD3 evaluation
532 bool "NEC EMMA2RH Mark-eins board"
536 This enables support for the NEC Electronics Mark-eins boards.
539 bool "NEC VR4100 series based machines"
542 select SYS_HAS_CPU_VR41XX
543 select SYS_SUPPORTS_MIPS16
547 bool "NXP STB220 board"
550 Support for NXP Semiconductors STB220 Development Board.
557 Support for NXP Semiconductors STB225 Development Board.
560 bool "PMC-Sierra MSP chipsets"
563 select DMA_NONCOHERENT
565 select NO_EXCEPT_FILL
567 select SYS_HAS_CPU_MIPS32_R1
568 select SYS_HAS_CPU_MIPS32_R2
569 select SYS_SUPPORTS_32BIT_KERNEL
570 select SYS_SUPPORTS_BIG_ENDIAN
571 select SYS_SUPPORTS_MIPS16
574 select SERIAL_8250_CONSOLE
575 select USB_EHCI_BIG_ENDIAN_MMIO
576 select USB_EHCI_BIG_ENDIAN_DESC
578 This adds support for the PMC-Sierra family of Multi-Service
579 Processor System-On-A-Chips. These parts include a number
580 of integrated peripherals, interfaces and DSPs in addition to
581 a variety of MIPS cores.
584 bool "Ralink based machines"
588 select DMA_NONCOHERENT
591 select SYS_HAS_CPU_MIPS32_R1
592 select SYS_HAS_CPU_MIPS32_R2
593 select SYS_SUPPORTS_32BIT_KERNEL
594 select SYS_SUPPORTS_LITTLE_ENDIAN
595 select SYS_SUPPORTS_MIPS16
596 select SYS_HAS_EARLY_PRINTK
598 select ARCH_HAS_RESET_CONTROLLER
599 select RESET_CONTROLLER
602 bool "SGI IP22 (Indy/Indigo2)"
608 select DEFAULT_SGI_PARTITION
609 select DMA_NONCOHERENT
613 select IP22_CPU_SCACHE
615 select GENERIC_ISA_DMA_SUPPORT_BROKEN
617 select SGI_HAS_INDYDOG
623 select SYS_HAS_CPU_R4X00
624 select SYS_HAS_CPU_R5000
626 # Disable EARLY_PRINTK for now since it leads to overwritten prom
627 # memory during early boot on some machines.
629 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
630 # for a more details discussion
632 # select SYS_HAS_EARLY_PRINTK
633 select SYS_SUPPORTS_32BIT_KERNEL
634 select SYS_SUPPORTS_64BIT_KERNEL
635 select SYS_SUPPORTS_BIG_ENDIAN
636 select MIPS_L1_CACHE_SHIFT_7
638 This are the SGI Indy, Challenge S and Indigo2, as well as certain
639 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
640 that runs on these, say Y here.
643 bool "SGI IP27 (Origin200/2000)"
647 select DEFAULT_SGI_PARTITION
649 select SYS_HAS_EARLY_PRINTK
651 select NR_CPUS_DEFAULT_64
652 select SYS_HAS_CPU_R10000
653 select SYS_SUPPORTS_64BIT_KERNEL
654 select SYS_SUPPORTS_BIG_ENDIAN
655 select SYS_SUPPORTS_NUMA
656 select SYS_SUPPORTS_SMP
657 select MIPS_L1_CACHE_SHIFT_7
659 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
660 workstations. To compile a Linux kernel that runs on these, say Y
664 bool "SGI IP28 (Indigo2 R10k)"
670 select DEFAULT_SGI_PARTITION
671 select DMA_NONCOHERENT
672 select GENERIC_ISA_DMA_SUPPORT_BROKEN
678 select SGI_HAS_INDYDOG
684 select SYS_HAS_CPU_R10000
686 # Disable EARLY_PRINTK for now since it leads to overwritten prom
687 # memory during early boot on some machines.
689 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
690 # for a more details discussion
692 # select SYS_HAS_EARLY_PRINTK
693 select SYS_SUPPORTS_64BIT_KERNEL
694 select SYS_SUPPORTS_BIG_ENDIAN
695 select MIPS_L1_CACHE_SHIFT_7
697 This is the SGI Indigo2 with R10000 processor. To compile a Linux
698 kernel that runs on these, say Y here.
707 select DMA_NONCOHERENT
710 select R5000_CPU_SCACHE
711 select RM7000_CPU_SCACHE
712 select SYS_HAS_CPU_R5000
713 select SYS_HAS_CPU_R10000 if BROKEN
714 select SYS_HAS_CPU_RM7000
715 select SYS_HAS_CPU_NEVADA
716 select SYS_SUPPORTS_64BIT_KERNEL
717 select SYS_SUPPORTS_BIG_ENDIAN
719 If you want this kernel to run on SGI O2 workstation, say Y here.
722 bool "Sibyte BCM91120C-CRhine"
725 select SIBYTE_BCM1120
727 select SYS_HAS_CPU_SB1
728 select SYS_SUPPORTS_BIG_ENDIAN
729 select SYS_SUPPORTS_LITTLE_ENDIAN
732 bool "Sibyte BCM91120x-Carmel"
735 select SIBYTE_BCM1120
737 select SYS_HAS_CPU_SB1
738 select SYS_SUPPORTS_BIG_ENDIAN
739 select SYS_SUPPORTS_LITTLE_ENDIAN
742 bool "Sibyte BCM91125C-CRhone"
745 select SIBYTE_BCM1125
747 select SYS_HAS_CPU_SB1
748 select SYS_SUPPORTS_BIG_ENDIAN
749 select SYS_SUPPORTS_HIGHMEM
750 select SYS_SUPPORTS_LITTLE_ENDIAN
753 bool "Sibyte BCM91125E-Rhone"
756 select SIBYTE_BCM1125H
758 select SYS_HAS_CPU_SB1
759 select SYS_SUPPORTS_BIG_ENDIAN
760 select SYS_SUPPORTS_LITTLE_ENDIAN
763 bool "Sibyte BCM91250A-SWARM"
766 select HAVE_PATA_PLATFORM
769 select SYS_HAS_CPU_SB1
770 select SYS_SUPPORTS_BIG_ENDIAN
771 select SYS_SUPPORTS_HIGHMEM
772 select SYS_SUPPORTS_LITTLE_ENDIAN
773 select ZONE_DMA32 if 64BIT
775 config SIBYTE_LITTLESUR
776 bool "Sibyte BCM91250C2-LittleSur"
779 select HAVE_PATA_PLATFORM
782 select SYS_HAS_CPU_SB1
783 select SYS_SUPPORTS_BIG_ENDIAN
784 select SYS_SUPPORTS_HIGHMEM
785 select SYS_SUPPORTS_LITTLE_ENDIAN
787 config SIBYTE_SENTOSA
788 bool "Sibyte BCM91250E-Sentosa"
793 select SYS_HAS_CPU_SB1
794 select SYS_SUPPORTS_BIG_ENDIAN
795 select SYS_SUPPORTS_LITTLE_ENDIAN
798 bool "Sibyte BCM91480B-BigSur"
801 select NR_CPUS_DEFAULT_4
802 select SIBYTE_BCM1x80
804 select SYS_HAS_CPU_SB1
805 select SYS_SUPPORTS_BIG_ENDIAN
806 select SYS_SUPPORTS_HIGHMEM
807 select SYS_SUPPORTS_LITTLE_ENDIAN
808 select ZONE_DMA32 if 64BIT
811 bool "SNI RM200/300/400"
812 select FW_ARC if CPU_LITTLE_ENDIAN
813 select FW_ARC32 if CPU_LITTLE_ENDIAN
814 select FW_SNIPROM if CPU_BIG_ENDIAN
815 select ARCH_MAY_HAVE_PC_FDC
819 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
820 select DMA_NONCOHERENT
821 select GENERIC_ISA_DMA
822 select HAVE_PCSPKR_PLATFORM
829 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
830 select SYS_HAS_CPU_R4X00
831 select SYS_HAS_CPU_R5000
832 select SYS_HAS_CPU_R10000
833 select R5000_CPU_SCACHE
834 select SYS_HAS_EARLY_PRINTK
835 select SYS_SUPPORTS_32BIT_KERNEL
836 select SYS_SUPPORTS_64BIT_KERNEL
837 select SYS_SUPPORTS_BIG_ENDIAN
838 select SYS_SUPPORTS_HIGHMEM
839 select SYS_SUPPORTS_LITTLE_ENDIAN
841 The SNI RM200/300/400 are MIPS-based machines manufactured by
842 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
843 Technology and now in turn merged with Fujitsu. Say Y here to
844 support this machine type.
847 bool "Toshiba TX39 series based machines"
850 bool "Toshiba TX49 series based machines"
852 config MIKROTIK_RB532
853 bool "Mikrotik RB532 boards"
856 select DMA_NONCOHERENT
859 select SYS_HAS_CPU_MIPS32_R1
860 select SYS_SUPPORTS_32BIT_KERNEL
861 select SYS_SUPPORTS_LITTLE_ENDIAN
865 select MIPS_L1_CACHE_SHIFT_4
867 Support the Mikrotik(tm) RouterBoard 532 series,
868 based on the IDT RC32434 SoC.
870 config CAVIUM_OCTEON_SOC
871 bool "Cavium Networks Octeon SoC based boards"
873 select ARCH_PHYS_ADDR_T_64BIT
875 select SYS_SUPPORTS_64BIT_KERNEL
876 select SYS_SUPPORTS_BIG_ENDIAN
878 select EDAC_ATOMIC_SCRUB
879 select SYS_SUPPORTS_LITTLE_ENDIAN
880 select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
881 select SYS_HAS_EARLY_PRINTK
882 select SYS_HAS_CPU_CAVIUM_OCTEON
889 select ARCH_SPARSEMEM_ENABLE
890 select SYS_SUPPORTS_SMP
891 select NR_CPUS_DEFAULT_16
893 select MTD_COMPLEX_MAPPINGS
895 This option supports all of the Octeon reference boards from Cavium
896 Networks. It builds a kernel that dynamically determines the Octeon
897 CPU type and supports all known board reference implementations.
898 Some of the supported boards are:
905 Say Y here for most Octeon reference boards.
908 bool "Netlogic XLR/XLS based systems"
911 select SYS_HAS_CPU_XLR
912 select SYS_SUPPORTS_SMP
915 select SYS_SUPPORTS_32BIT_KERNEL
916 select SYS_SUPPORTS_64BIT_KERNEL
917 select ARCH_PHYS_ADDR_T_64BIT
918 select SYS_SUPPORTS_BIG_ENDIAN
919 select SYS_SUPPORTS_HIGHMEM
921 select NR_CPUS_DEFAULT_32
925 select ZONE_DMA32 if 64BIT
927 select SYS_HAS_EARLY_PRINTK
928 select SYS_SUPPORTS_ZBOOT
929 select SYS_SUPPORTS_ZBOOT_UART16550
931 Support for systems based on Netlogic XLR and XLS processors.
932 Say Y here if you have a XLR or XLS based board.
935 bool "Netlogic XLP based systems"
938 select SYS_HAS_CPU_XLP
939 select SYS_SUPPORTS_SMP
941 select SYS_SUPPORTS_32BIT_KERNEL
942 select SYS_SUPPORTS_64BIT_KERNEL
943 select ARCH_PHYS_ADDR_T_64BIT
945 select SYS_SUPPORTS_BIG_ENDIAN
946 select SYS_SUPPORTS_LITTLE_ENDIAN
947 select SYS_SUPPORTS_HIGHMEM
949 select NR_CPUS_DEFAULT_32
953 select ZONE_DMA32 if 64BIT
955 select SYS_HAS_EARLY_PRINTK
957 select SYS_SUPPORTS_ZBOOT
958 select SYS_SUPPORTS_ZBOOT_UART16550
960 This board is based on Netlogic XLP Processor.
961 Say Y here if you have a XLP based board.
964 bool "Para-Virtualized guest system"
968 select SYS_SUPPORTS_64BIT_KERNEL
969 select SYS_SUPPORTS_32BIT_KERNEL
970 select SYS_SUPPORTS_BIG_ENDIAN
971 select SYS_SUPPORTS_SMP
972 select NR_CPUS_DEFAULT_4
973 select SYS_HAS_EARLY_PRINTK
974 select SYS_HAS_CPU_MIPS32_R2
975 select SYS_HAS_CPU_MIPS64_R2
976 select SYS_HAS_CPU_CAVIUM_OCTEON
980 This option supports guest running under ????
984 source "arch/mips/alchemy/Kconfig"
985 source "arch/mips/ath25/Kconfig"
986 source "arch/mips/ath79/Kconfig"
987 source "arch/mips/bcm47xx/Kconfig"
988 source "arch/mips/bcm63xx/Kconfig"
989 source "arch/mips/bmips/Kconfig"
990 source "arch/mips/jazz/Kconfig"
991 source "arch/mips/jz4740/Kconfig"
992 source "arch/mips/lantiq/Kconfig"
993 source "arch/mips/lasat/Kconfig"
994 source "arch/mips/pic32/Kconfig"
995 source "arch/mips/pistachio/Kconfig"
996 source "arch/mips/pmcs-msp71xx/Kconfig"
997 source "arch/mips/ralink/Kconfig"
998 source "arch/mips/sgi-ip27/Kconfig"
999 source "arch/mips/sibyte/Kconfig"
1000 source "arch/mips/txx9/Kconfig"
1001 source "arch/mips/vr41xx/Kconfig"
1002 source "arch/mips/cavium-octeon/Kconfig"
1003 source "arch/mips/loongson32/Kconfig"
1004 source "arch/mips/loongson64/Kconfig"
1005 source "arch/mips/netlogic/Kconfig"
1006 source "arch/mips/paravirt/Kconfig"
1007 source "arch/mips/xilfpga/Kconfig"
1011 config RWSEM_GENERIC_SPINLOCK
1015 config RWSEM_XCHGADD_ALGORITHM
1018 config ARCH_HAS_ILOG2_U32
1022 config ARCH_HAS_ILOG2_U64
1026 config GENERIC_HWEIGHT
1030 config GENERIC_CALIBRATE_DELAY
1034 config SCHED_OMIT_FRAME_POINTER
1039 # Select some configuration options automatically based on user selections.
1044 config ARCH_MAY_HAVE_PC_FDC
1080 config MIPS_CLOCK_VSYSCALL
1081 def_bool CSRC_R4K || CLKSRC_MIPS_GIC
1090 config ARCH_DMA_ADDR_T_64BIT
1091 def_bool (HIGHMEM && ARCH_PHYS_ADDR_T_64BIT) || 64BIT
1093 config ARCH_SUPPORTS_UPROBES
1096 config DMA_MAYBE_COHERENT
1097 select DMA_NONCOHERENT
1103 config DMA_NONCOHERENT
1105 select NEED_DMA_MAP_STATE
1107 config NEED_DMA_MAP_STATE
1110 config SYS_HAS_EARLY_PRINTK
1113 config SYS_SUPPORTS_HOTPLUG_CPU
1116 config MIPS_BONITO64
1131 config NO_IOPORT_MAP
1137 config GENERIC_ISA_DMA
1139 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1142 config GENERIC_ISA_DMA_SUPPORT_BROKEN
1144 select GENERIC_ISA_DMA
1149 config HOLES_IN_ZONE
1152 config SYS_SUPPORTS_RELOCATABLE
1155 Selected if the platform supports relocating the kernel.
1156 The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF
1157 to allow access to command line and entropy sources.
1160 # Endianness selection. Sufficiently obscure so many users don't know what to
1161 # answer,so we try hard to limit the available choices. Also the use of a
1162 # choice statement should be more obvious to the user.
1165 prompt "Endianness selection"
1167 Some MIPS machines can be configured for either little or big endian
1168 byte order. These modes require different kernels and a different
1169 Linux distribution. In general there is one preferred byteorder for a
1170 particular system but some systems are just as commonly used in the
1171 one or the other endianness.
1173 config CPU_BIG_ENDIAN
1175 depends on SYS_SUPPORTS_BIG_ENDIAN
1177 config CPU_LITTLE_ENDIAN
1178 bool "Little endian"
1179 depends on SYS_SUPPORTS_LITTLE_ENDIAN
1186 config SYS_SUPPORTS_APM_EMULATION
1189 config SYS_SUPPORTS_BIG_ENDIAN
1192 config SYS_SUPPORTS_LITTLE_ENDIAN
1195 config SYS_SUPPORTS_HUGETLBFS
1197 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1200 config MIPS_HUGE_TLB_SUPPORT
1201 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1218 config PCI_GT64XXX_PCI0
1221 config NO_EXCEPT_FILL
1228 select DMA_NONCOHERENT
1230 select SWAP_IO_SPACE
1231 select SYS_HAS_CPU_R5500
1232 select SYS_SUPPORTS_32BIT_KERNEL
1233 select SYS_SUPPORTS_64BIT_KERNEL
1234 select SYS_SUPPORTS_BIG_ENDIAN
1241 select DMA_NONCOHERENT
1242 select SYS_HAS_CPU_MIPS32_R2
1243 select SYS_SUPPORTS_32BIT_KERNEL
1244 select SYS_SUPPORTS_LITTLE_ENDIAN
1245 select SYS_SUPPORTS_BIG_ENDIAN
1246 select SYS_SUPPORTS_MIPS16
1247 select CPU_MIPSR2_IRQ_VI
1256 config SWAP_IO_SPACE
1259 config SGI_HAS_INDYDOG
1271 config SGI_HAS_ZILOG
1274 config SGI_HAS_I8042
1277 config DEFAULT_SGI_PARTITION
1289 config MIPS_L1_CACHE_SHIFT_4
1292 config MIPS_L1_CACHE_SHIFT_5
1295 config MIPS_L1_CACHE_SHIFT_6
1298 config MIPS_L1_CACHE_SHIFT_7
1301 config MIPS_L1_CACHE_SHIFT
1303 default "7" if MIPS_L1_CACHE_SHIFT_7
1304 default "6" if MIPS_L1_CACHE_SHIFT_6
1305 default "5" if MIPS_L1_CACHE_SHIFT_5
1306 default "4" if MIPS_L1_CACHE_SHIFT_4
1309 config HAVE_STD_PC_SERIAL_PORT
1313 bool "ARC console support"
1314 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1318 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1323 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1332 menu "CPU selection"
1338 config CPU_LOONGSON3
1339 bool "Loongson 3 CPU"
1340 depends on SYS_HAS_CPU_LOONGSON3
1341 select CPU_SUPPORTS_64BIT_KERNEL
1342 select CPU_SUPPORTS_HIGHMEM
1343 select CPU_SUPPORTS_HUGEPAGES
1344 select WEAK_ORDERING
1345 select WEAK_REORDERING_BEYOND_LLSC
1346 select MIPS_PGD_C0_CONTEXT
1349 The Loongson 3 processor implements the MIPS64R2 instruction
1350 set with many extensions.
1352 config LOONGSON3_ENHANCEMENT
1353 bool "New Loongson 3 CPU Enhancements"
1356 select CPU_HAS_PREFETCH
1357 depends on CPU_LOONGSON3
1359 New Loongson 3 CPU (since Loongson-3A R2, as opposed to Loongson-3A
1360 R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as
1361 FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPv2 ASE, User
1362 Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer),
1363 Fast TLB refill support, etc.
1365 This option enable those enhancements which are not probed at run
1366 time. If you want a generic kernel to run on all Loongson 3 machines,
1367 please say 'N' here. If you want a high-performance kernel to run on
1368 new Loongson 3 machines only, please say 'Y' here.
1370 config CPU_LOONGSON2E
1372 depends on SYS_HAS_CPU_LOONGSON2E
1373 select CPU_LOONGSON2
1375 The Loongson 2E processor implements the MIPS III instruction set
1376 with many extensions.
1378 It has an internal FPGA northbridge, which is compatible to
1381 config CPU_LOONGSON2F
1383 depends on SYS_HAS_CPU_LOONGSON2F
1384 select CPU_LOONGSON2
1387 The Loongson 2F processor implements the MIPS III instruction set
1388 with many extensions.
1390 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1391 have a similar programming interface with FPGA northbridge used in
1394 config CPU_LOONGSON1B
1396 depends on SYS_HAS_CPU_LOONGSON1B
1397 select CPU_LOONGSON1
1398 select LEDS_GPIO_REGISTER
1400 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1401 release 2 instruction set.
1403 config CPU_MIPS32_R1
1404 bool "MIPS32 Release 1"
1405 depends on SYS_HAS_CPU_MIPS32_R1
1406 select CPU_HAS_PREFETCH
1407 select CPU_SUPPORTS_32BIT_KERNEL
1408 select CPU_SUPPORTS_HIGHMEM
1410 Choose this option to build a kernel for release 1 or later of the
1411 MIPS32 architecture. Most modern embedded systems with a 32-bit
1412 MIPS processor are based on a MIPS32 processor. If you know the
1413 specific type of processor in your system, choose those that one
1414 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1415 Release 2 of the MIPS32 architecture is available since several
1416 years so chances are you even have a MIPS32 Release 2 processor
1417 in which case you should choose CPU_MIPS32_R2 instead for better
1420 config CPU_MIPS32_R2
1421 bool "MIPS32 Release 2"
1422 depends on SYS_HAS_CPU_MIPS32_R2
1423 select CPU_HAS_PREFETCH
1424 select CPU_SUPPORTS_32BIT_KERNEL
1425 select CPU_SUPPORTS_HIGHMEM
1426 select CPU_SUPPORTS_MSA
1429 Choose this option to build a kernel for release 2 or later of the
1430 MIPS32 architecture. Most modern embedded systems with a 32-bit
1431 MIPS processor are based on a MIPS32 processor. If you know the
1432 specific type of processor in your system, choose those that one
1433 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1435 config CPU_MIPS32_R6
1436 bool "MIPS32 Release 6"
1437 depends on SYS_HAS_CPU_MIPS32_R6
1438 select CPU_HAS_PREFETCH
1439 select CPU_SUPPORTS_32BIT_KERNEL
1440 select CPU_SUPPORTS_HIGHMEM
1441 select CPU_SUPPORTS_MSA
1444 select MIPS_O32_FP64_SUPPORT
1446 Choose this option to build a kernel for release 6 or later of the
1447 MIPS32 architecture. New MIPS processors, starting with the Warrior
1448 family, are based on a MIPS32r6 processor. If you own an older
1449 processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1451 config CPU_MIPS64_R1
1452 bool "MIPS64 Release 1"
1453 depends on SYS_HAS_CPU_MIPS64_R1
1454 select CPU_HAS_PREFETCH
1455 select CPU_SUPPORTS_32BIT_KERNEL
1456 select CPU_SUPPORTS_64BIT_KERNEL
1457 select CPU_SUPPORTS_HIGHMEM
1458 select CPU_SUPPORTS_HUGEPAGES
1460 Choose this option to build a kernel for release 1 or later of the
1461 MIPS64 architecture. Many modern embedded systems with a 64-bit
1462 MIPS processor are based on a MIPS64 processor. If you know the
1463 specific type of processor in your system, choose those that one
1464 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1465 Release 2 of the MIPS64 architecture is available since several
1466 years so chances are you even have a MIPS64 Release 2 processor
1467 in which case you should choose CPU_MIPS64_R2 instead for better
1470 config CPU_MIPS64_R2
1471 bool "MIPS64 Release 2"
1472 depends on SYS_HAS_CPU_MIPS64_R2
1473 select CPU_HAS_PREFETCH
1474 select CPU_SUPPORTS_32BIT_KERNEL
1475 select CPU_SUPPORTS_64BIT_KERNEL
1476 select CPU_SUPPORTS_HIGHMEM
1477 select CPU_SUPPORTS_HUGEPAGES
1478 select CPU_SUPPORTS_MSA
1480 Choose this option to build a kernel for release 2 or later of the
1481 MIPS64 architecture. Many modern embedded systems with a 64-bit
1482 MIPS processor are based on a MIPS64 processor. If you know the
1483 specific type of processor in your system, choose those that one
1484 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1486 config CPU_MIPS64_R6
1487 bool "MIPS64 Release 6"
1488 depends on SYS_HAS_CPU_MIPS64_R6
1489 select CPU_HAS_PREFETCH
1490 select CPU_SUPPORTS_32BIT_KERNEL
1491 select CPU_SUPPORTS_64BIT_KERNEL
1492 select CPU_SUPPORTS_HIGHMEM
1493 select CPU_SUPPORTS_MSA
1495 select MIPS_O32_FP64_SUPPORT if MIPS32_O32
1497 Choose this option to build a kernel for release 6 or later of the
1498 MIPS64 architecture. New MIPS processors, starting with the Warrior
1499 family, are based on a MIPS64r6 processor. If you own an older
1500 processor, you probably need to select MIPS64r1 or MIPS64r2 instead.
1504 depends on SYS_HAS_CPU_R3000
1506 select CPU_SUPPORTS_32BIT_KERNEL
1507 select CPU_SUPPORTS_HIGHMEM
1509 Please make sure to pick the right CPU type. Linux/MIPS is not
1510 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1511 *not* work on R4000 machines and vice versa. However, since most
1512 of the supported machines have an R4000 (or similar) CPU, R4x00
1513 might be a safe bet. If the resulting kernel does not work,
1514 try to recompile with R3000.
1518 depends on SYS_HAS_CPU_TX39XX
1519 select CPU_SUPPORTS_32BIT_KERNEL
1523 depends on SYS_HAS_CPU_VR41XX
1524 select CPU_SUPPORTS_32BIT_KERNEL
1525 select CPU_SUPPORTS_64BIT_KERNEL
1527 The options selects support for the NEC VR4100 series of processors.
1528 Only choose this option if you have one of these processors as a
1529 kernel built with this option will not run on any other type of
1530 processor or vice versa.
1534 depends on SYS_HAS_CPU_R4300
1535 select CPU_SUPPORTS_32BIT_KERNEL
1536 select CPU_SUPPORTS_64BIT_KERNEL
1538 MIPS Technologies R4300-series processors.
1542 depends on SYS_HAS_CPU_R4X00
1543 select CPU_SUPPORTS_32BIT_KERNEL
1544 select CPU_SUPPORTS_64BIT_KERNEL
1545 select CPU_SUPPORTS_HUGEPAGES
1547 MIPS Technologies R4000-series processors other than 4300, including
1548 the R4000, R4400, R4600, and 4700.
1552 depends on SYS_HAS_CPU_TX49XX
1553 select CPU_HAS_PREFETCH
1554 select CPU_SUPPORTS_32BIT_KERNEL
1555 select CPU_SUPPORTS_64BIT_KERNEL
1556 select CPU_SUPPORTS_HUGEPAGES
1560 depends on SYS_HAS_CPU_R5000
1561 select CPU_SUPPORTS_32BIT_KERNEL
1562 select CPU_SUPPORTS_64BIT_KERNEL
1563 select CPU_SUPPORTS_HUGEPAGES
1565 MIPS Technologies R5000-series processors other than the Nevada.
1569 depends on SYS_HAS_CPU_R5432
1570 select CPU_SUPPORTS_32BIT_KERNEL
1571 select CPU_SUPPORTS_64BIT_KERNEL
1572 select CPU_SUPPORTS_HUGEPAGES
1576 depends on SYS_HAS_CPU_R5500
1577 select CPU_SUPPORTS_32BIT_KERNEL
1578 select CPU_SUPPORTS_64BIT_KERNEL
1579 select CPU_SUPPORTS_HUGEPAGES
1581 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1586 depends on SYS_HAS_CPU_R6000
1587 select CPU_SUPPORTS_32BIT_KERNEL
1589 MIPS Technologies R6000 and R6000A series processors. Note these
1590 processors are extremely rare and the support for them is incomplete.
1594 depends on SYS_HAS_CPU_NEVADA
1595 select CPU_SUPPORTS_32BIT_KERNEL
1596 select CPU_SUPPORTS_64BIT_KERNEL
1597 select CPU_SUPPORTS_HUGEPAGES
1599 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1603 depends on SYS_HAS_CPU_R8000
1604 select CPU_HAS_PREFETCH
1605 select CPU_SUPPORTS_64BIT_KERNEL
1607 MIPS Technologies R8000 processors. Note these processors are
1608 uncommon and the support for them is incomplete.
1612 depends on SYS_HAS_CPU_R10000
1613 select CPU_HAS_PREFETCH
1614 select CPU_SUPPORTS_32BIT_KERNEL
1615 select CPU_SUPPORTS_64BIT_KERNEL
1616 select CPU_SUPPORTS_HIGHMEM
1617 select CPU_SUPPORTS_HUGEPAGES
1619 MIPS Technologies R10000-series processors.
1623 depends on SYS_HAS_CPU_RM7000
1624 select CPU_HAS_PREFETCH
1625 select CPU_SUPPORTS_32BIT_KERNEL
1626 select CPU_SUPPORTS_64BIT_KERNEL
1627 select CPU_SUPPORTS_HIGHMEM
1628 select CPU_SUPPORTS_HUGEPAGES
1632 depends on SYS_HAS_CPU_SB1
1633 select CPU_SUPPORTS_32BIT_KERNEL
1634 select CPU_SUPPORTS_64BIT_KERNEL
1635 select CPU_SUPPORTS_HIGHMEM
1636 select CPU_SUPPORTS_HUGEPAGES
1637 select WEAK_ORDERING
1639 config CPU_CAVIUM_OCTEON
1640 bool "Cavium Octeon processor"
1641 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1642 select CPU_HAS_PREFETCH
1643 select CPU_SUPPORTS_64BIT_KERNEL
1644 select WEAK_ORDERING
1645 select CPU_SUPPORTS_HIGHMEM
1646 select CPU_SUPPORTS_HUGEPAGES
1647 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1648 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1649 select MIPS_L1_CACHE_SHIFT_7
1651 The Cavium Octeon processor is a highly integrated chip containing
1652 many ethernet hardware widgets for networking tasks. The processor
1653 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1654 Full details can be found at http://www.caviumnetworks.com.
1657 bool "Broadcom BMIPS"
1658 depends on SYS_HAS_CPU_BMIPS
1660 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1661 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1662 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1663 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1664 select CPU_SUPPORTS_32BIT_KERNEL
1665 select DMA_NONCOHERENT
1667 select SWAP_IO_SPACE
1668 select WEAK_ORDERING
1669 select CPU_SUPPORTS_HIGHMEM
1670 select CPU_HAS_PREFETCH
1672 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1675 bool "Netlogic XLR SoC"
1676 depends on SYS_HAS_CPU_XLR
1677 select CPU_SUPPORTS_32BIT_KERNEL
1678 select CPU_SUPPORTS_64BIT_KERNEL
1679 select CPU_SUPPORTS_HIGHMEM
1680 select CPU_SUPPORTS_HUGEPAGES
1681 select WEAK_ORDERING
1682 select WEAK_REORDERING_BEYOND_LLSC
1684 Netlogic Microsystems XLR/XLS processors.
1687 bool "Netlogic XLP SoC"
1688 depends on SYS_HAS_CPU_XLP
1689 select CPU_SUPPORTS_32BIT_KERNEL
1690 select CPU_SUPPORTS_64BIT_KERNEL
1691 select CPU_SUPPORTS_HIGHMEM
1692 select WEAK_ORDERING
1693 select WEAK_REORDERING_BEYOND_LLSC
1694 select CPU_HAS_PREFETCH
1696 select CPU_SUPPORTS_HUGEPAGES
1697 select MIPS_ASID_BITS_VARIABLE
1699 Netlogic Microsystems XLP processors.
1702 config CPU_MIPS32_3_5_FEATURES
1703 bool "MIPS32 Release 3.5 Features"
1704 depends on SYS_HAS_CPU_MIPS32_R3_5
1705 depends on CPU_MIPS32_R2 || CPU_MIPS32_R6
1707 Choose this option to build a kernel for release 2 or later of the
1708 MIPS32 architecture including features from the 3.5 release such as
1709 support for Enhanced Virtual Addressing (EVA).
1711 config CPU_MIPS32_3_5_EVA
1712 bool "Enhanced Virtual Addressing (EVA)"
1713 depends on CPU_MIPS32_3_5_FEATURES
1717 Choose this option if you want to enable the Enhanced Virtual
1718 Addressing (EVA) on your MIPS32 core (such as proAptiv).
1719 One of its primary benefits is an increase in the maximum size
1720 of lowmem (up to 3GB). If unsure, say 'N' here.
1722 config CPU_MIPS32_R5_FEATURES
1723 bool "MIPS32 Release 5 Features"
1724 depends on SYS_HAS_CPU_MIPS32_R5
1725 depends on CPU_MIPS32_R2
1727 Choose this option to build a kernel for release 2 or later of the
1728 MIPS32 architecture including features from release 5 such as
1729 support for Extended Physical Addressing (XPA).
1731 config CPU_MIPS32_R5_XPA
1732 bool "Extended Physical Addressing (XPA)"
1733 depends on CPU_MIPS32_R5_FEATURES
1735 depends on !PAGE_SIZE_4KB
1736 depends on SYS_SUPPORTS_HIGHMEM
1739 select ARCH_PHYS_ADDR_T_64BIT
1742 Choose this option if you want to enable the Extended Physical
1743 Addressing (XPA) on your MIPS32 core (such as P5600 series). The
1744 benefit is to increase physical addressing equal to or greater
1745 than 40 bits. Note that this has the side effect of turning on
1746 64-bit addressing which in turn makes the PTEs 64-bit in size.
1747 If unsure, say 'N' here.
1750 config CPU_NOP_WORKAROUNDS
1753 config CPU_JUMP_WORKAROUNDS
1756 config CPU_LOONGSON2F_WORKAROUNDS
1757 bool "Loongson 2F Workarounds"
1759 select CPU_NOP_WORKAROUNDS
1760 select CPU_JUMP_WORKAROUNDS
1762 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1763 require workarounds. Without workarounds the system may hang
1764 unexpectedly. For more information please refer to the gas
1765 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1767 Loongson 2F03 and later have fixed these issues and no workarounds
1768 are needed. The workarounds have no significant side effect on them
1769 but may decrease the performance of the system so this option should
1770 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1773 If unsure, please say Y.
1774 endif # CPU_LOONGSON2F
1776 config SYS_SUPPORTS_ZBOOT
1778 select HAVE_KERNEL_GZIP
1779 select HAVE_KERNEL_BZIP2
1780 select HAVE_KERNEL_LZ4
1781 select HAVE_KERNEL_LZMA
1782 select HAVE_KERNEL_LZO
1783 select HAVE_KERNEL_XZ
1785 config SYS_SUPPORTS_ZBOOT_UART16550
1787 select SYS_SUPPORTS_ZBOOT
1789 config SYS_SUPPORTS_ZBOOT_UART_PROM
1791 select SYS_SUPPORTS_ZBOOT
1793 config CPU_LOONGSON2
1795 select CPU_SUPPORTS_32BIT_KERNEL
1796 select CPU_SUPPORTS_64BIT_KERNEL
1797 select CPU_SUPPORTS_HIGHMEM
1798 select CPU_SUPPORTS_HUGEPAGES
1800 config CPU_LOONGSON1
1804 select CPU_HAS_PREFETCH
1805 select CPU_SUPPORTS_32BIT_KERNEL
1806 select CPU_SUPPORTS_HIGHMEM
1807 select CPU_SUPPORTS_CPUFREQ
1809 config CPU_BMIPS32_3300
1810 select SMP_UP if SMP
1813 config CPU_BMIPS4350
1815 select SYS_SUPPORTS_SMP
1816 select SYS_SUPPORTS_HOTPLUG_CPU
1818 config CPU_BMIPS4380
1820 select MIPS_L1_CACHE_SHIFT_6
1821 select SYS_SUPPORTS_SMP
1822 select SYS_SUPPORTS_HOTPLUG_CPU
1825 config CPU_BMIPS5000
1827 select MIPS_CPU_SCACHE
1828 select MIPS_L1_CACHE_SHIFT_7
1829 select SYS_SUPPORTS_SMP
1830 select SYS_SUPPORTS_HOTPLUG_CPU
1833 config SYS_HAS_CPU_LOONGSON3
1835 select CPU_SUPPORTS_CPUFREQ
1838 config SYS_HAS_CPU_LOONGSON2E
1841 config SYS_HAS_CPU_LOONGSON2F
1843 select CPU_SUPPORTS_CPUFREQ
1844 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1845 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1847 config SYS_HAS_CPU_LOONGSON1B
1850 config SYS_HAS_CPU_MIPS32_R1
1853 config SYS_HAS_CPU_MIPS32_R2
1856 config SYS_HAS_CPU_MIPS32_R3_5
1859 config SYS_HAS_CPU_MIPS32_R5
1862 config SYS_HAS_CPU_MIPS32_R6
1865 config SYS_HAS_CPU_MIPS64_R1
1868 config SYS_HAS_CPU_MIPS64_R2
1871 config SYS_HAS_CPU_MIPS64_R6
1874 config SYS_HAS_CPU_R3000
1877 config SYS_HAS_CPU_TX39XX
1880 config SYS_HAS_CPU_VR41XX
1883 config SYS_HAS_CPU_R4300
1886 config SYS_HAS_CPU_R4X00
1889 config SYS_HAS_CPU_TX49XX
1892 config SYS_HAS_CPU_R5000
1895 config SYS_HAS_CPU_R5432
1898 config SYS_HAS_CPU_R5500
1901 config SYS_HAS_CPU_R6000
1904 config SYS_HAS_CPU_NEVADA
1907 config SYS_HAS_CPU_R8000
1910 config SYS_HAS_CPU_R10000
1913 config SYS_HAS_CPU_RM7000
1916 config SYS_HAS_CPU_SB1
1919 config SYS_HAS_CPU_CAVIUM_OCTEON
1922 config SYS_HAS_CPU_BMIPS
1925 config SYS_HAS_CPU_BMIPS32_3300
1927 select SYS_HAS_CPU_BMIPS
1929 config SYS_HAS_CPU_BMIPS4350
1931 select SYS_HAS_CPU_BMIPS
1933 config SYS_HAS_CPU_BMIPS4380
1935 select SYS_HAS_CPU_BMIPS
1937 config SYS_HAS_CPU_BMIPS5000
1939 select SYS_HAS_CPU_BMIPS
1941 config SYS_HAS_CPU_XLR
1944 config SYS_HAS_CPU_XLP
1947 config MIPS_MALTA_PM
1948 depends on MIPS_MALTA
1954 # CPU may reorder R->R, R->W, W->R, W->W
1955 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1957 config WEAK_ORDERING
1961 # CPU may reorder reads and writes beyond LL/SC
1962 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1964 config WEAK_REORDERING_BEYOND_LLSC
1969 # These two indicate any level of the MIPS32 and MIPS64 architecture
1973 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6
1977 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6
1980 # These two indicate the revision of the architecture, either Release 1 or Release 2
1984 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1988 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1994 default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
1996 select HAVE_ARCH_BITREVERSE
1997 select MIPS_ASID_BITS_VARIABLE
2006 config SYS_SUPPORTS_32BIT_KERNEL
2008 config SYS_SUPPORTS_64BIT_KERNEL
2010 config CPU_SUPPORTS_32BIT_KERNEL
2012 config CPU_SUPPORTS_64BIT_KERNEL
2014 config CPU_SUPPORTS_CPUFREQ
2016 config CPU_SUPPORTS_ADDRWINCFG
2018 config CPU_SUPPORTS_HUGEPAGES
2020 config CPU_SUPPORTS_UNCACHED_ACCELERATED
2022 config MIPS_PGD_C0_CONTEXT
2024 default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
2027 # Set to y for ptrace access to watch registers.
2029 config HARDWARE_WATCHPOINTS
2031 default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6
2036 prompt "Kernel code model"
2038 You should only select this option if you have a workload that
2039 actually benefits from 64-bit processing or if your machine has
2040 large memory. You will only be presented a single option in this
2041 menu if your system does not support both 32-bit and 64-bit kernels.
2044 bool "32-bit kernel"
2045 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
2048 Select this option if you want to build a 32-bit kernel.
2051 bool "64-bit kernel"
2052 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
2054 Select this option if you want to build a 64-bit kernel.
2059 bool "KVM Guest Kernel"
2060 depends on BROKEN_ON_SMP
2062 Select this option if building a guest kernel for KVM (Trap & Emulate)
2065 config KVM_GUEST_TIMER_FREQ
2066 int "Count/Compare Timer Frequency (MHz)"
2067 depends on KVM_GUEST
2070 Set this to non-zero if building a guest kernel for KVM to skip RTC
2071 emulation when determining guest CPU Frequency. Instead, the guest's
2072 timer frequency is specified directly.
2074 config MIPS_VA_BITS_48
2075 bool "48 bits virtual memory"
2078 Support a maximum at least 48 bits of application virtual memory.
2079 Default is 40 bits or less, depending on the CPU.
2080 This option result in a small memory overhead for page tables.
2081 This option is only supported with 16k and 64k page sizes.
2085 prompt "Kernel page size"
2086 default PAGE_SIZE_4KB
2088 config PAGE_SIZE_4KB
2090 depends on !CPU_LOONGSON2 && !CPU_LOONGSON3
2091 depends on !MIPS_VA_BITS_48
2093 This option select the standard 4kB Linux page size. On some
2094 R3000-family processors this is the only available page size. Using
2095 4kB page size will minimize memory consumption and is therefore
2096 recommended for low memory systems.
2098 config PAGE_SIZE_8KB
2100 depends on CPU_R8000 || CPU_CAVIUM_OCTEON
2101 depends on !MIPS_VA_BITS_48
2103 Using 8kB page size will result in higher performance kernel at
2104 the price of higher memory consumption. This option is available
2105 only on R8000 and cnMIPS processors. Note that you will need a
2106 suitable Linux distribution to support this.
2108 config PAGE_SIZE_16KB
2110 depends on !CPU_R3000 && !CPU_TX39XX
2112 Using 16kB page size will result in higher performance kernel at
2113 the price of higher memory consumption. This option is available on
2114 all non-R3000 family processors. Note that you will need a suitable
2115 Linux distribution to support this.
2117 config PAGE_SIZE_32KB
2119 depends on CPU_CAVIUM_OCTEON
2120 depends on !MIPS_VA_BITS_48
2122 Using 32kB page size will result in higher performance kernel at
2123 the price of higher memory consumption. This option is available
2124 only on cnMIPS cores. Note that you will need a suitable Linux
2125 distribution to support this.
2127 config PAGE_SIZE_64KB
2129 depends on !CPU_R3000 && !CPU_TX39XX && !CPU_R6000
2131 Using 64kB page size will result in higher performance kernel at
2132 the price of higher memory consumption. This option is available on
2133 all non-R3000 family processor. Not that at the time of this
2134 writing this option is still high experimental.
2138 config FORCE_MAX_ZONEORDER
2139 int "Maximum zone order"
2140 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2141 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2142 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2143 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2144 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2145 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2149 The kernel memory allocator divides physically contiguous memory
2150 blocks into "zones", where each zone is a power of two number of
2151 pages. This option selects the largest power of two that the kernel
2152 keeps in the memory allocator. If you need to allocate very large
2153 blocks of physically contiguous memory, then you may need to
2154 increase this value.
2156 This config option is actually maximum order plus one. For example,
2157 a value of 11 means that the largest free memory block is 2^10 pages.
2159 The page size is not necessarily 4KB. Keep this in mind
2160 when choosing a value for this option.
2165 config IP22_CPU_SCACHE
2170 # Support for a MIPS32 / MIPS64 style S-caches
2172 config MIPS_CPU_SCACHE
2176 config R5000_CPU_SCACHE
2180 config RM7000_CPU_SCACHE
2184 config SIBYTE_DMA_PAGEOPS
2185 bool "Use DMA to clear/copy pages"
2188 Instead of using the CPU to zero and copy pages, use a Data Mover
2189 channel. These DMA channels are otherwise unused by the standard
2190 SiByte Linux port. Seems to give a small performance benefit.
2192 config CPU_HAS_PREFETCH
2195 config CPU_GENERIC_DUMP_TLB
2197 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
2201 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
2203 config CPU_R4K_CACHE_TLB
2205 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
2208 bool "MIPS MT SMP support (1 TC on each available VPE)"
2209 depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6
2210 select CPU_MIPSR2_IRQ_VI
2211 select CPU_MIPSR2_IRQ_EI
2216 select SYS_SUPPORTS_SMP
2217 select SYS_SUPPORTS_SCHED_SMT
2218 select MIPS_PERF_SHARED_TC_COUNTERS
2220 This is a kernel model which is known as SMVP. This is supported
2221 on cores with the MT ASE and uses the available VPEs to implement
2222 virtual processors which supports SMP. This is equivalent to the
2223 Intel Hyperthreading feature. For further information go to
2224 <http://www.imgtec.com/mips/mips-multithreading.asp>.
2230 bool "SMT (multithreading) scheduler support"
2231 depends on SYS_SUPPORTS_SCHED_SMT
2234 SMT scheduler support improves the CPU scheduler's decision making
2235 when dealing with MIPS MT enabled cores at a cost of slightly
2236 increased overhead in some places. If unsure say N here.
2238 config SYS_SUPPORTS_SCHED_SMT
2241 config SYS_SUPPORTS_MULTITHREADING
2244 config MIPS_MT_FPAFF
2245 bool "Dynamic FPU affinity for FP-intensive threads"
2247 depends on MIPS_MT_SMP
2249 config MIPSR2_TO_R6_EMULATOR
2250 bool "MIPS R2-to-R6 emulator"
2251 depends on CPU_MIPSR6 && !SMP
2254 Choose this option if you want to run non-R6 MIPS userland code.
2255 Even if you say 'Y' here, the emulator will still be disabled by
2256 default. You can enable it using the 'mipsr2emu' kernel option.
2257 The only reason this is a build-time option is to save ~14K from the
2259 comment "MIPS R2-to-R6 emulator is only available for UP kernels"
2260 depends on SMP && CPU_MIPSR6
2262 config MIPS_VPE_LOADER
2263 bool "VPE loader support."
2264 depends on SYS_SUPPORTS_MULTITHREADING && MODULES
2265 select CPU_MIPSR2_IRQ_VI
2266 select CPU_MIPSR2_IRQ_EI
2269 Includes a loader for loading an elf relocatable object
2270 onto another VPE and running it.
2272 config MIPS_VPE_LOADER_CMP
2275 depends on MIPS_VPE_LOADER && MIPS_CMP
2277 config MIPS_VPE_LOADER_MT
2280 depends on MIPS_VPE_LOADER && !MIPS_CMP
2282 config MIPS_VPE_LOADER_TOM
2283 bool "Load VPE program into memory hidden from linux"
2284 depends on MIPS_VPE_LOADER
2287 The loader can use memory that is present but has been hidden from
2288 Linux using the kernel command line option "mem=xxMB". It's up to
2289 you to ensure the amount you put in the option and the space your
2290 program requires is less or equal to the amount physically present.
2292 config MIPS_VPE_APSP_API
2293 bool "Enable support for AP/SP API (RTLX)"
2294 depends on MIPS_VPE_LOADER
2297 config MIPS_VPE_APSP_API_CMP
2300 depends on MIPS_VPE_APSP_API && MIPS_CMP
2302 config MIPS_VPE_APSP_API_MT
2305 depends on MIPS_VPE_APSP_API && !MIPS_CMP
2308 bool "MIPS CMP framework support (DEPRECATED)"
2309 depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6
2312 select SYS_SUPPORTS_SMP
2313 select WEAK_ORDERING
2316 Select this if you are using a bootloader which implements the "CMP
2317 framework" protocol (ie. YAMON) and want your kernel to make use of
2318 its ability to start secondary CPUs.
2320 Unless you have a specific need, you should use CONFIG_MIPS_CPS
2324 bool "MIPS Coherent Processing System support"
2325 depends on SYS_SUPPORTS_MIPS_CPS
2328 select MIPS_CPS_PM if HOTPLUG_CPU
2330 select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2331 select SYS_SUPPORTS_HOTPLUG_CPU
2332 select SYS_SUPPORTS_SMP
2333 select WEAK_ORDERING
2335 Select this if you wish to run an SMP kernel across multiple cores
2336 within a MIPS Coherent Processing System. When this option is
2337 enabled the kernel will probe for other cores and boot them with
2338 no external assistance. It is safe to enable this when hardware
2339 support is unavailable.
2352 config SB1_PASS_2_WORKAROUNDS
2354 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2357 config SB1_PASS_2_1_WORKAROUNDS
2359 depends on CPU_SB1 && CPU_SB1_PASS_2
2363 config ARCH_PHYS_ADDR_T_64BIT
2367 prompt "SmartMIPS or microMIPS ASE support"
2369 config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
2372 Select this if you want neither microMIPS nor SmartMIPS support
2374 config CPU_HAS_SMARTMIPS
2375 depends on SYS_SUPPORTS_SMARTMIPS
2378 SmartMIPS is a extension of the MIPS32 architecture aimed at
2379 increased security at both hardware and software level for
2380 smartcards. Enabling this option will allow proper use of the
2381 SmartMIPS instructions by Linux applications. However a kernel with
2382 this option will not work on a MIPS core without SmartMIPS core. If
2383 you don't know you probably don't have SmartMIPS and should say N
2386 config CPU_MICROMIPS
2387 depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2390 When this option is enabled the kernel will be built using the
2396 bool "Support for the MIPS SIMD Architecture"
2397 depends on CPU_SUPPORTS_MSA
2398 depends on 64BIT || MIPS_O32_FP64_SUPPORT
2400 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2401 and a set of SIMD instructions to operate on them. When this option
2402 is enabled the kernel will support allocating & switching MSA
2403 vector register contexts. If you know that your kernel will only be
2404 running on CPUs which do not support MSA or that your userland will
2405 not be making use of it then you may wish to say N here to reduce
2406 the size & complexity of your kernel.
2420 # Vectored interrupt mode is an R2 feature
2422 config CPU_MIPSR2_IRQ_VI
2426 # Extended interrupt mode is an R2 feature
2428 config CPU_MIPSR2_IRQ_EI
2433 depends on !CPU_R3000
2439 config CPU_DADDI_WORKAROUNDS
2442 config CPU_R4000_WORKAROUNDS
2444 select CPU_R4400_WORKAROUNDS
2446 config CPU_R4400_WORKAROUNDS
2449 config MIPS_ASID_SHIFT
2451 default 6 if CPU_R3000 || CPU_TX39XX
2452 default 4 if CPU_R8000
2455 config MIPS_ASID_BITS
2457 default 0 if MIPS_ASID_BITS_VARIABLE
2458 default 6 if CPU_R3000 || CPU_TX39XX
2461 config MIPS_ASID_BITS_VARIABLE
2465 # - Highmem only makes sense for the 32-bit kernel.
2466 # - The current highmem code will only work properly on physically indexed
2467 # caches such as R3000, SB1, R7000 or those that look like they're virtually
2468 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2469 # moment we protect the user and offer the highmem option only on machines
2470 # where it's known to be safe. This will not offer highmem on a few systems
2471 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2472 # indexed CPUs but we're playing safe.
2473 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2474 # know they might have memory configurations that could make use of highmem
2478 bool "High Memory Support"
2479 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2481 config CPU_SUPPORTS_HIGHMEM
2484 config SYS_SUPPORTS_HIGHMEM
2487 config SYS_SUPPORTS_SMARTMIPS
2490 config SYS_SUPPORTS_MICROMIPS
2493 config SYS_SUPPORTS_MIPS16
2496 This option must be set if a kernel might be executed on a MIPS16-
2497 enabled CPU even if MIPS16 is not actually being used. In other
2498 words, it makes the kernel MIPS16-tolerant.
2500 config CPU_SUPPORTS_MSA
2503 config ARCH_FLATMEM_ENABLE
2505 depends on !NUMA && !CPU_LOONGSON2
2507 config ARCH_DISCONTIGMEM_ENABLE
2509 default y if SGI_IP27
2511 Say Y to support efficient handling of discontiguous physical memory,
2512 for architectures which are either NUMA (Non-Uniform Memory Access)
2513 or have huge holes in the physical address space for other reasons.
2514 See <file:Documentation/vm/numa> for more.
2516 config ARCH_SPARSEMEM_ENABLE
2518 select SPARSEMEM_STATIC
2522 depends on SYS_SUPPORTS_NUMA
2524 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2525 Access). This option improves performance on systems with more
2526 than two nodes; on two node systems it is generally better to
2527 leave it disabled; on single node systems disable this option
2530 config SYS_SUPPORTS_NUMA
2534 bool "Relocatable kernel"
2535 depends on SYS_SUPPORTS_RELOCATABLE && (CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_MIPS32_R6 || CPU_MIPS64_R6)
2537 This builds a kernel image that retains relocation information
2538 so it can be loaded someplace besides the default 1MB.
2539 The relocations make the kernel binary about 15% larger,
2540 but are discarded at runtime
2542 config RELOCATION_TABLE_SIZE
2543 hex "Relocation table size"
2544 depends on RELOCATABLE
2545 range 0x0 0x01000000
2546 default "0x00100000"
2548 A table of relocation data will be appended to the kernel binary
2549 and parsed at boot to fix up the relocated kernel.
2551 This option allows the amount of space reserved for the table to be
2552 adjusted, although the default of 1Mb should be ok in most cases.
2554 The build will fail and a valid size suggested if this is too small.
2556 If unsure, leave at the default value.
2558 config RANDOMIZE_BASE
2559 bool "Randomize the address of the kernel image"
2560 depends on RELOCATABLE
2562 Randomizes the physical and virtual address at which the
2563 kernel image is loaded, as a security feature that
2564 deters exploit attempts relying on knowledge of the location
2565 of kernel internals.
2567 Entropy is generated using any coprocessor 0 registers available.
2569 The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET.
2573 config RANDOMIZE_BASE_MAX_OFFSET
2574 hex "Maximum kASLR offset" if EXPERT
2575 depends on RANDOMIZE_BASE
2576 range 0x0 0x40000000 if EVA || 64BIT
2577 range 0x0 0x08000000
2578 default "0x01000000"
2580 When kASLR is active, this provides the maximum offset that will
2581 be applied to the kernel image. It should be set according to the
2582 amount of physical RAM available in the target system minus
2583 PHYSICAL_START and must be a power of 2.
2585 This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with
2586 EVA or 64-bit. The default is 16Mb.
2591 depends on NEED_MULTIPLE_NODES
2593 config HW_PERF_EVENTS
2594 bool "Enable hardware performance counter support for perf events"
2595 depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3)
2598 Enable hardware performance counter support for perf events. If
2599 disabled, perf events will use software events only.
2604 bool "Multi-Processing support"
2605 depends on SYS_SUPPORTS_SMP
2607 This enables support for systems with more than one CPU. If you have
2608 a system with only one CPU, say N. If you have a system with more
2609 than one CPU, say Y.
2611 If you say N here, the kernel will run on uni- and multiprocessor
2612 machines, but will use only one CPU of a multiprocessor machine. If
2613 you say Y here, the kernel will run on many, but not all,
2614 uniprocessor machines. On a uniprocessor machine, the kernel
2615 will run faster if you say N here.
2617 People using multiprocessor machines who say Y here should also say
2618 Y to "Enhanced Real Time Clock Support", below.
2620 See also the SMP-HOWTO available at
2621 <http://www.tldp.org/docs.html#howto>.
2623 If you don't know what to do here, say N.
2626 bool "Support for hot-pluggable CPUs"
2627 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
2629 Say Y here to allow turning CPUs off and on. CPUs can be
2630 controlled through /sys/devices/system/cpu.
2631 (Note: power management support will enable this option
2632 automatically on SMP systems. )
2633 Say N if you want to disable CPU hotplug.
2638 config SYS_SUPPORTS_MIPS_CMP
2641 config SYS_SUPPORTS_MIPS_CPS
2644 config SYS_SUPPORTS_SMP
2647 config NR_CPUS_DEFAULT_4
2650 config NR_CPUS_DEFAULT_8
2653 config NR_CPUS_DEFAULT_16
2656 config NR_CPUS_DEFAULT_32
2659 config NR_CPUS_DEFAULT_64
2663 int "Maximum number of CPUs (2-256)"
2666 default "4" if NR_CPUS_DEFAULT_4
2667 default "8" if NR_CPUS_DEFAULT_8
2668 default "16" if NR_CPUS_DEFAULT_16
2669 default "32" if NR_CPUS_DEFAULT_32
2670 default "64" if NR_CPUS_DEFAULT_64
2672 This allows you to specify the maximum number of CPUs which this
2673 kernel will support. The maximum supported value is 32 for 32-bit
2674 kernel and 64 for 64-bit kernels; the minimum value which makes
2675 sense is 1 for Qemu (useful only for kernel debugging purposes)
2676 and 2 for all others.
2678 This is purely to save memory - each supported CPU adds
2679 approximately eight kilobytes to the kernel image. For best
2680 performance should round up your number of processors to the next
2683 config MIPS_PERF_SHARED_TC_COUNTERS
2687 # Timer Interrupt Frequency Configuration
2691 prompt "Timer frequency"
2694 Allows the configuration of the timer frequency.
2697 bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ
2700 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2703 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2706 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2709 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2712 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2715 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2718 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2722 config SYS_SUPPORTS_24HZ
2725 config SYS_SUPPORTS_48HZ
2728 config SYS_SUPPORTS_100HZ
2731 config SYS_SUPPORTS_128HZ
2734 config SYS_SUPPORTS_250HZ
2737 config SYS_SUPPORTS_256HZ
2740 config SYS_SUPPORTS_1000HZ
2743 config SYS_SUPPORTS_1024HZ
2746 config SYS_SUPPORTS_ARBIT_HZ
2748 default y if !SYS_SUPPORTS_24HZ && \
2749 !SYS_SUPPORTS_48HZ && \
2750 !SYS_SUPPORTS_100HZ && \
2751 !SYS_SUPPORTS_128HZ && \
2752 !SYS_SUPPORTS_250HZ && \
2753 !SYS_SUPPORTS_256HZ && \
2754 !SYS_SUPPORTS_1000HZ && \
2755 !SYS_SUPPORTS_1024HZ
2761 default 100 if HZ_100
2762 default 128 if HZ_128
2763 default 250 if HZ_250
2764 default 256 if HZ_256
2765 default 1000 if HZ_1000
2766 default 1024 if HZ_1024
2769 def_bool HIGH_RES_TIMERS
2771 source "kernel/Kconfig.preempt"
2774 bool "Kexec system call"
2777 kexec is a system call that implements the ability to shutdown your
2778 current kernel, and to start another kernel. It is like a reboot
2779 but it is independent of the system firmware. And like a reboot
2780 you can start any kernel with it, not just Linux.
2782 The name comes from the similarity to the exec system call.
2784 It is an ongoing process to be certain the hardware in a machine
2785 is properly shutdown, so do not be surprised if this code does not
2786 initially work for you. As of this writing the exact hardware
2787 interface is strongly in flux, so no good recommendation can be
2791 bool "Kernel crash dumps"
2793 Generate crash dump after being started by kexec.
2794 This should be normally only set in special crash dump kernels
2795 which are loaded in the main kernel with kexec-tools into
2796 a specially reserved region and then later executed after
2797 a crash by kdump/kexec. The crash dump kernel must be compiled
2798 to a memory address not used by the main kernel or firmware using
2801 config PHYSICAL_START
2802 hex "Physical address where the kernel is loaded"
2803 default "0xffffffff84000000" if 64BIT
2804 default "0x84000000" if 32BIT
2805 depends on CRASH_DUMP
2807 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2808 If you plan to use kernel for capturing the crash dump change
2809 this value to start of the reserved region (the "X" value as
2810 specified in the "crashkernel=YM@XM" command line boot parameter
2811 passed to the panic-ed kernel).
2814 bool "Enable seccomp to safely compute untrusted bytecode"
2818 This kernel feature is useful for number crunching applications
2819 that may need to compute untrusted bytecode during their
2820 execution. By using pipes or other transports made available to
2821 the process as file descriptors supporting the read/write
2822 syscalls, it's possible to isolate those applications in
2823 their own address space using seccomp. Once seccomp is
2824 enabled via /proc/<pid>/seccomp, it cannot be disabled
2825 and the task is only allowed to execute a few safe syscalls
2826 defined by each seccomp mode.
2828 If unsure, say Y. Only embedded should say N here.
2830 config MIPS_O32_FP64_SUPPORT
2831 bool "Support for O32 binaries using 64-bit FP"
2832 depends on 32BIT || MIPS32_O32
2834 When this is enabled, the kernel will support use of 64-bit floating
2835 point registers with binaries using the O32 ABI along with the
2836 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
2837 32-bit MIPS systems this support is at the cost of increasing the
2838 size and complexity of the compiled FPU emulator. Thus if you are
2839 running a MIPS32 system and know that none of your userland binaries
2840 will require 64-bit floating point, you may wish to reduce the size
2841 of your kernel & potentially improve FP emulation performance by
2844 Although binutils currently supports use of this flag the details
2845 concerning its effect upon the O32 ABI in userland are still being
2846 worked on. In order to avoid userland becoming dependant upon current
2847 behaviour before the details have been finalised, this option should
2848 be considered experimental and only enabled by those working upon
2856 select OF_EARLY_FLATTREE
2863 prompt "Kernel appended dtb support" if USE_OF
2864 default MIPS_NO_APPENDED_DTB
2866 config MIPS_NO_APPENDED_DTB
2869 Do not enable appended dtb support.
2871 config MIPS_ELF_APPENDED_DTB
2874 With this option, the boot code will look for a device tree binary
2875 DTB) included in the vmlinux ELF section .appended_dtb. By default
2876 it is empty and the DTB can be appended using binutils command
2879 objcopy --update-section .appended_dtb=<filename>.dtb vmlinux
2881 This is meant as a backward compatiblity convenience for those
2882 systems with a bootloader that can't be upgraded to accommodate
2883 the documented boot protocol using a device tree.
2885 config MIPS_RAW_APPENDED_DTB
2888 With this option, the boot code will look for a device tree binary
2889 DTB) appended to raw vmlinux.bin (without decompressor).
2890 (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb).
2892 This is meant as a backward compatibility convenience for those
2893 systems with a bootloader that can't be upgraded to accommodate
2894 the documented boot protocol using a device tree.
2896 Beware that there is very little in terms of protection against
2897 this option being confused by leftover garbage in memory that might
2898 look like a DTB header after a reboot if no actual DTB is appended
2899 to vmlinux.bin. Do not leave this option active in a production kernel
2900 if you don't intend to always append a DTB.
2902 config MIPS_ZBOOT_APPENDED_DTB
2904 depends on SYS_SUPPORTS_ZBOOT
2906 With this option, the boot code will look for a device tree binary
2907 DTB) appended to raw vmlinuz.bin (with decompressor).
2908 (e.g. cat vmlinuz.bin <filename>.dtb > vmlinuz_w_dtb).
2910 This is meant as a backward compatibility convenience for those
2911 systems with a bootloader that can't be upgraded to accommodate
2912 the documented boot protocol using a device tree.
2914 Beware that there is very little in terms of protection against
2915 this option being confused by leftover garbage in memory that might
2916 look like a DTB header after a reboot if no actual DTB is appended
2917 to vmlinuz.bin. Do not leave this option active in a production kernel
2918 if you don't intend to always append a DTB.
2922 prompt "Kernel command line type" if !CMDLINE_OVERRIDE
2923 default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
2924 !MIPS_MALTA && !MIPS_SEAD3 && \
2926 default MIPS_CMDLINE_FROM_BOOTLOADER
2928 config MIPS_CMDLINE_FROM_DTB
2930 bool "Dtb kernel arguments if available"
2932 config MIPS_CMDLINE_DTB_EXTEND
2934 bool "Extend dtb kernel arguments with bootloader arguments"
2936 config MIPS_CMDLINE_FROM_BOOTLOADER
2937 bool "Bootloader kernel arguments if available"
2939 config MIPS_CMDLINE_BUILTIN_EXTEND
2940 depends on CMDLINE_BOOL
2941 bool "Extend builtin kernel arguments with bootloader arguments"
2946 config LOCKDEP_SUPPORT
2950 config STACKTRACE_SUPPORT
2954 config HAVE_LATENCYTOP_SUPPORT
2958 config PGTABLE_LEVELS
2960 default 3 if 64BIT && !PAGE_SIZE_64KB
2963 source "init/Kconfig"
2965 source "kernel/Kconfig.freezer"
2967 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2975 bool "Support for PCI controller"
2976 depends on HW_HAS_PCI
2978 select NO_GENERIC_PCI_IOPORT_MAP
2980 Find out whether you have a PCI motherboard. PCI is the name of a
2981 bus system, i.e. the way the CPU talks to the other stuff inside
2982 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2986 bool "Support for HT-linked PCI"
2988 depends on CPU_LOONGSON3
2992 Loongson family machines use Hyper-Transport bus for inter-core
2993 connection and device connection. The PCI bus is a subordinate
2994 linked at HT. Choose Y for Loongson-3 based machines.
2999 source "drivers/pci/Kconfig"
3002 # ISA support is now enabled via select. Too many systems still have the one
3003 # or other ISA chip on the board that users don't know about so don't expect
3004 # users to choose the right thing ...
3011 depends on HW_HAS_EISA
3013 select GENERIC_ISA_DMA
3015 The Extended Industry Standard Architecture (EISA) bus was
3016 developed as an open alternative to the IBM MicroChannel bus.
3018 The EISA bus provided some of the features of the IBM MicroChannel
3019 bus while maintaining backward compatibility with cards made for
3020 the older ISA bus. The EISA bus saw limited use between 1988 and
3021 1995 when it was made obsolete by the PCI bus.
3023 Say Y here if you are building a kernel for an EISA-based machine.
3027 source "drivers/eisa/Kconfig"
3030 bool "TURBOchannel support"
3031 depends on MACH_DECSTATION
3033 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
3034 processors. TURBOchannel programming specifications are available
3036 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
3038 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
3039 Linux driver support status is documented at:
3040 <http://www.linux-mips.org/wiki/DECstation>
3050 select MIPS_EXTERNAL_TIMER
3058 source "drivers/pcmcia/Kconfig"
3061 tristate "RapidIO support"
3065 If you say Y here, the kernel will include drivers and
3066 infrastructure code to support RapidIO interconnect devices.
3068 source "drivers/rapidio/Kconfig"
3072 menu "Executable file formats"
3074 source "fs/Kconfig.binfmt"
3079 config MIPS32_COMPAT
3085 config SYSVIPC_COMPAT
3089 bool "Kernel support for o32 binaries"
3091 select ARCH_WANT_OLD_COMPAT_IPC
3093 select MIPS32_COMPAT
3094 select SYSVIPC_COMPAT if SYSVIPC
3096 Select this option if you want to run o32 binaries. These are pure
3097 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
3098 existing binaries are in this format.
3103 bool "Kernel support for n32 binaries"
3106 select MIPS32_COMPAT
3107 select SYSVIPC_COMPAT if SYSVIPC
3109 Select this option if you want to run n32 binaries. These are
3110 64-bit binaries using 32-bit quantities for addressing and certain
3111 data that would normally be 64-bit. They are used in special
3118 default y if MIPS32_O32 || MIPS32_N32
3123 menu "Power management options"
3125 config ARCH_HIBERNATION_POSSIBLE
3127 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3129 config ARCH_SUSPEND_POSSIBLE
3131 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3133 source "kernel/power/Kconfig"
3137 config MIPS_EXTERNAL_TIMER
3140 menu "CPU Power Management"
3142 if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
3143 source "drivers/cpufreq/Kconfig"
3146 source "drivers/cpuidle/Kconfig"
3150 source "net/Kconfig"
3152 source "drivers/Kconfig"
3154 source "drivers/firmware/Kconfig"
3158 source "arch/mips/Kconfig.debug"
3160 source "security/Kconfig"
3162 source "crypto/Kconfig"
3164 source "lib/Kconfig"
3166 source "arch/mips/kvm/Kconfig"