4 select ARCH_MIGHT_HAVE_PC_PARPORT
5 select ARCH_MIGHT_HAVE_PC_SERIO
6 select HAVE_CONTEXT_TRACKING
7 select HAVE_GENERIC_DMA_COHERENT
10 select HAVE_PERF_EVENTS
11 select PERF_USE_VMALLOC
13 select HAVE_ARCH_SECCOMP_FILTER
14 select HAVE_ARCH_TRACEHOOK
15 select HAVE_BPF_JIT if !CPU_MICROMIPS
16 select ARCH_HAVE_CUSTOM_GPIO_H
17 select HAVE_FUNCTION_TRACER
18 select HAVE_DYNAMIC_FTRACE
19 select HAVE_FTRACE_MCOUNT_RECORD
20 select HAVE_C_RECORDMCOUNT
21 select HAVE_FUNCTION_GRAPH_TRACER
23 select HAVE_KRETPROBES
24 select HAVE_DEBUG_KMEMLEAK
25 select HAVE_SYSCALL_TRACEPOINTS
26 select ARCH_BINFMT_ELF_RANDOMIZE_PIE
27 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT
28 select RTC_LIB if !MACH_LOONGSON
29 select GENERIC_ATOMIC64 if !64BIT
30 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
32 select HAVE_DMA_API_DEBUG
33 select GENERIC_IRQ_PROBE
34 select GENERIC_IRQ_SHOW
35 select GENERIC_PCI_IOMAP
36 select HAVE_ARCH_JUMP_LABEL
37 select ARCH_WANT_IPC_PARSE_VERSION
38 select IRQ_FORCED_THREADING
40 select HAVE_MEMBLOCK_NODE_MAP
41 select ARCH_DISCARD_MEMBLOCK
42 select GENERIC_SMP_IDLE_THREAD
43 select BUILDTIME_EXTABLE_SORT
44 select GENERIC_CLOCKEVENTS
45 select GENERIC_CMOS_UPDATE
46 select HAVE_MOD_ARCH_SPECIFIC
48 select MODULES_USE_ELF_REL if MODULES
49 select MODULES_USE_ELF_RELA if MODULES && 64BIT
50 select CLONE_BACKWARDS
51 select HAVE_DEBUG_STACKOVERFLOW
52 select HAVE_CC_STACKPROTECTOR
53 select CPU_PM if CPU_IDLE
54 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
56 menu "Machine selection"
63 bool "Alchemy processor based machines"
64 select 64BIT_PHYS_ADDR
68 select DMA_MAYBE_COHERENT # Au1000,1500,1100 aren't, rest is
69 select SYS_HAS_CPU_MIPS32_R1
70 select SYS_SUPPORTS_32BIT_KERNEL
71 select SYS_SUPPORTS_APM_EMULATION
72 select ARCH_REQUIRE_GPIOLIB
73 select SYS_SUPPORTS_ZBOOT
77 bool "Texas Instruments AR7"
79 select DMA_NONCOHERENT
85 select SYS_HAS_CPU_MIPS32_R1
86 select SYS_HAS_EARLY_PRINTK
87 select SYS_SUPPORTS_32BIT_KERNEL
88 select SYS_SUPPORTS_LITTLE_ENDIAN
89 select SYS_SUPPORTS_MIPS16
90 select SYS_SUPPORTS_ZBOOT_UART16550
91 select ARCH_REQUIRE_GPIOLIB
95 Support for the Texas Instruments AR7 System-on-a-Chip
96 family: TNETD7100, 7200 and 7300.
99 bool "Atheros AR71XX/AR724X/AR913X based boards"
100 select ARCH_REQUIRE_GPIOLIB
104 select DMA_NONCOHERENT
109 select SYS_HAS_CPU_MIPS32_R2
110 select SYS_HAS_EARLY_PRINTK
111 select SYS_SUPPORTS_32BIT_KERNEL
112 select SYS_SUPPORTS_BIG_ENDIAN
113 select SYS_SUPPORTS_MIPS16
115 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
118 bool "Broadcom BCM47XX based boards"
119 select ARCH_WANT_OPTIONAL_GPIOLIB
123 select DMA_NONCOHERENT
126 select SYS_HAS_CPU_MIPS32_R1
127 select NO_EXCEPT_FILL
128 select SYS_SUPPORTS_32BIT_KERNEL
129 select SYS_SUPPORTS_LITTLE_ENDIAN
130 select SYS_SUPPORTS_MIPS16
131 select SYS_HAS_EARLY_PRINTK
132 select USE_GENERIC_EARLY_PRINTK_8250
134 select LEDS_GPIO_REGISTER
136 Support for BCM47XX based boards
139 bool "Broadcom BCM63XX based boards"
144 select DMA_NONCOHERENT
146 select SYS_SUPPORTS_32BIT_KERNEL
147 select SYS_SUPPORTS_BIG_ENDIAN
148 select SYS_HAS_EARLY_PRINTK
150 select ARCH_REQUIRE_GPIOLIB
152 select MIPS_L1_CACHE_SHIFT_4
154 Support for BCM63XX based boards
161 select DMA_NONCOHERENT
167 select PCI_GT64XXX_PCI0
169 select SYS_HAS_CPU_NEVADA
170 select SYS_HAS_EARLY_PRINTK
171 select SYS_SUPPORTS_32BIT_KERNEL
172 select SYS_SUPPORTS_64BIT_KERNEL
173 select SYS_SUPPORTS_LITTLE_ENDIAN
174 select USE_GENERIC_EARLY_PRINTK_8250
176 config MACH_DECSTATION
180 select CEVT_R4K if CPU_R4X00
182 select CSRC_R4K if CPU_R4X00
183 select CPU_DADDI_WORKAROUNDS if 64BIT
184 select CPU_R4000_WORKAROUNDS if 64BIT
185 select CPU_R4400_WORKAROUNDS if 64BIT
186 select DMA_NONCOHERENT
189 select SYS_HAS_CPU_R3000
190 select SYS_HAS_CPU_R4X00
191 select SYS_SUPPORTS_32BIT_KERNEL
192 select SYS_SUPPORTS_64BIT_KERNEL
193 select SYS_SUPPORTS_LITTLE_ENDIAN
194 select SYS_SUPPORTS_128HZ
195 select SYS_SUPPORTS_256HZ
196 select SYS_SUPPORTS_1024HZ
197 select MIPS_L1_CACHE_SHIFT_4
199 This enables support for DEC's MIPS based workstations. For details
200 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
201 DECstation porting pages on <http://decstation.unix-ag.org/>.
203 If you have one of the following DECstation Models you definitely
204 want to choose R4xx0 for the CPU Type:
211 otherwise choose R3000.
214 bool "Jazz family of machines"
217 select ARCH_MAY_HAVE_PC_FDC
220 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
221 select GENERIC_ISA_DMA
222 select HAVE_PCSPKR_PLATFORM
227 select SYS_HAS_CPU_R4X00
228 select SYS_SUPPORTS_32BIT_KERNEL
229 select SYS_SUPPORTS_64BIT_KERNEL
230 select SYS_SUPPORTS_100HZ
232 This a family of machines based on the MIPS R4030 chipset which was
233 used by several vendors to build RISC/os and Windows NT workstations.
234 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
235 Olivetti M700-10 workstations.
238 bool "Ingenic JZ4740 based machines"
239 select SYS_HAS_CPU_MIPS32_R1
240 select SYS_SUPPORTS_32BIT_KERNEL
241 select SYS_SUPPORTS_LITTLE_ENDIAN
242 select SYS_SUPPORTS_ZBOOT_UART16550
243 select DMA_NONCOHERENT
245 select ARCH_REQUIRE_GPIOLIB
246 select SYS_HAS_EARLY_PRINTK
248 select GENERIC_IRQ_CHIP
251 bool "Lantiq based platforms"
252 select DMA_NONCOHERENT
256 select SYS_HAS_CPU_MIPS32_R1
257 select SYS_HAS_CPU_MIPS32_R2
258 select SYS_SUPPORTS_BIG_ENDIAN
259 select SYS_SUPPORTS_32BIT_KERNEL
260 select SYS_SUPPORTS_MIPS16
261 select SYS_SUPPORTS_MULTITHREADING
262 select SYS_HAS_EARLY_PRINTK
263 select ARCH_REQUIRE_GPIOLIB
266 select HAVE_MACH_CLKDEV
270 select PINCTRL_LANTIQ
273 bool "LASAT Networks platforms"
277 select DMA_NONCOHERENT
278 select SYS_HAS_EARLY_PRINTK
281 select PCI_GT64XXX_PCI0
283 select R5000_CPU_SCACHE
284 select SYS_HAS_CPU_R5000
285 select SYS_SUPPORTS_32BIT_KERNEL
286 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
287 select SYS_SUPPORTS_LITTLE_ENDIAN
290 bool "Loongson family of machines"
291 select SYS_SUPPORTS_ZBOOT
293 This enables the support of Loongson family of machines.
295 Loongson is a family of general-purpose MIPS-compatible CPUs.
296 developed at Institute of Computing Technology (ICT),
297 Chinese Academy of Sciences (CAS) in the People's Republic
298 of China. The chief architect is Professor Weiwu Hu.
300 config MACH_LOONGSON1
301 bool "Loongson 1 family of machines"
302 select SYS_SUPPORTS_ZBOOT
304 This enables support for the Loongson 1 based machines.
306 Loongson 1 is a family of 32-bit MIPS-compatible SoCs developed by
307 the ICT (Institute of Computing Technology) and the Chinese Academy
311 bool "MIPS Malta board"
312 select ARCH_MAY_HAVE_PC_FDC
318 select DMA_MAYBE_COHERENT
319 select GENERIC_ISA_DMA
320 select HAVE_PCSPKR_PLATFORM
327 select MIPS_CPU_SCACHE
328 select PCI_GT64XXX_PCI0
331 select SYS_HAS_CPU_MIPS32_R1
332 select SYS_HAS_CPU_MIPS32_R2
333 select SYS_HAS_CPU_MIPS32_R3_5
334 select SYS_HAS_CPU_MIPS64_R1
335 select SYS_HAS_CPU_MIPS64_R2
336 select SYS_HAS_CPU_NEVADA
337 select SYS_HAS_CPU_RM7000
338 select SYS_SUPPORTS_32BIT_KERNEL
339 select SYS_SUPPORTS_64BIT_KERNEL
340 select SYS_SUPPORTS_BIG_ENDIAN
341 select SYS_SUPPORTS_LITTLE_ENDIAN
342 select SYS_SUPPORTS_MIPS_CMP
343 select SYS_SUPPORTS_MIPS_CPS
344 select SYS_SUPPORTS_MIPS16
345 select SYS_SUPPORTS_MULTITHREADING
346 select SYS_SUPPORTS_SMARTMIPS
347 select SYS_SUPPORTS_ZBOOT
349 This enables support for the MIPS Technologies Malta evaluation
353 bool "MIPS SEAD3 board"
359 select CPU_MIPSR2_IRQ_VI
360 select CPU_MIPSR2_IRQ_EI
361 select DMA_NONCOHERENT
366 select SYS_HAS_CPU_MIPS32_R1
367 select SYS_HAS_CPU_MIPS32_R2
368 select SYS_HAS_CPU_MIPS64_R1
369 select SYS_HAS_EARLY_PRINTK
370 select SYS_SUPPORTS_32BIT_KERNEL
371 select SYS_SUPPORTS_64BIT_KERNEL
372 select SYS_SUPPORTS_BIG_ENDIAN
373 select SYS_SUPPORTS_LITTLE_ENDIAN
374 select SYS_SUPPORTS_SMARTMIPS
375 select SYS_SUPPORTS_MICROMIPS
376 select SYS_SUPPORTS_MIPS16
377 select USB_EHCI_BIG_ENDIAN_DESC
378 select USB_EHCI_BIG_ENDIAN_MMIO
381 This enables support for the MIPS Technologies SEAD3 evaluation
385 bool "NEC EMMA2RH Mark-eins board"
389 This enables support for the NEC Electronics Mark-eins boards.
392 bool "NEC VR4100 series based machines"
395 select SYS_HAS_CPU_VR41XX
396 select SYS_SUPPORTS_MIPS16
397 select ARCH_REQUIRE_GPIOLIB
400 bool "NXP STB220 board"
403 Support for NXP Semiconductors STB220 Development Board.
410 Support for NXP Semiconductors STB225 Development Board.
413 bool "PMC-Sierra MSP chipsets"
416 select DMA_NONCOHERENT
418 select NO_EXCEPT_FILL
420 select SYS_HAS_CPU_MIPS32_R1
421 select SYS_HAS_CPU_MIPS32_R2
422 select SYS_SUPPORTS_32BIT_KERNEL
423 select SYS_SUPPORTS_BIG_ENDIAN
424 select SYS_SUPPORTS_MIPS16
427 select SERIAL_8250_CONSOLE
428 select USB_EHCI_BIG_ENDIAN_MMIO
429 select USB_EHCI_BIG_ENDIAN_DESC
431 This adds support for the PMC-Sierra family of Multi-Service
432 Processor System-On-A-Chips. These parts include a number
433 of integrated peripherals, interfaces and DSPs in addition to
434 a variety of MIPS cores.
437 bool "Ralink based machines"
441 select DMA_NONCOHERENT
444 select SYS_HAS_CPU_MIPS32_R1
445 select SYS_HAS_CPU_MIPS32_R2
446 select SYS_SUPPORTS_32BIT_KERNEL
447 select SYS_SUPPORTS_LITTLE_ENDIAN
448 select SYS_SUPPORTS_MIPS16
449 select SYS_HAS_EARLY_PRINTK
450 select HAVE_MACH_CLKDEV
452 select ARCH_HAS_RESET_CONTROLLER
453 select RESET_CONTROLLER
456 bool "SGI IP22 (Indy/Indigo2)"
462 select DEFAULT_SGI_PARTITION
463 select DMA_NONCOHERENT
467 select IP22_CPU_SCACHE
469 select GENERIC_ISA_DMA_SUPPORT_BROKEN
471 select SGI_HAS_INDYDOG
477 select SYS_HAS_CPU_R4X00
478 select SYS_HAS_CPU_R5000
480 # Disable EARLY_PRINTK for now since it leads to overwritten prom
481 # memory during early boot on some machines.
483 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
484 # for a more details discussion
486 # select SYS_HAS_EARLY_PRINTK
487 select SYS_SUPPORTS_32BIT_KERNEL
488 select SYS_SUPPORTS_64BIT_KERNEL
489 select SYS_SUPPORTS_BIG_ENDIAN
490 select MIPS_L1_CACHE_SHIFT_7
492 This are the SGI Indy, Challenge S and Indigo2, as well as certain
493 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
494 that runs on these, say Y here.
497 bool "SGI IP27 (Origin200/2000)"
501 select DEFAULT_SGI_PARTITION
503 select SYS_HAS_EARLY_PRINTK
505 select NR_CPUS_DEFAULT_64
506 select SYS_HAS_CPU_R10000
507 select SYS_SUPPORTS_64BIT_KERNEL
508 select SYS_SUPPORTS_BIG_ENDIAN
509 select SYS_SUPPORTS_NUMA
510 select SYS_SUPPORTS_SMP
511 select MIPS_L1_CACHE_SHIFT_7
513 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
514 workstations. To compile a Linux kernel that runs on these, say Y
518 bool "SGI IP28 (Indigo2 R10k)"
524 select DEFAULT_SGI_PARTITION
525 select DMA_NONCOHERENT
526 select GENERIC_ISA_DMA_SUPPORT_BROKEN
532 select SGI_HAS_INDYDOG
538 select SYS_HAS_CPU_R10000
540 # Disable EARLY_PRINTK for now since it leads to overwritten prom
541 # memory during early boot on some machines.
543 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
544 # for a more details discussion
546 # select SYS_HAS_EARLY_PRINTK
547 select SYS_SUPPORTS_64BIT_KERNEL
548 select SYS_SUPPORTS_BIG_ENDIAN
550 This is the SGI Indigo2 with R10000 processor. To compile a Linux
551 kernel that runs on these, say Y here.
560 select DMA_NONCOHERENT
563 select R5000_CPU_SCACHE
564 select RM7000_CPU_SCACHE
565 select SYS_HAS_CPU_R5000
566 select SYS_HAS_CPU_R10000 if BROKEN
567 select SYS_HAS_CPU_RM7000
568 select SYS_HAS_CPU_NEVADA
569 select SYS_SUPPORTS_64BIT_KERNEL
570 select SYS_SUPPORTS_BIG_ENDIAN
572 If you want this kernel to run on SGI O2 workstation, say Y here.
575 bool "Sibyte BCM91120C-CRhine"
578 select SIBYTE_BCM1120
580 select SYS_HAS_CPU_SB1
581 select SYS_SUPPORTS_BIG_ENDIAN
582 select SYS_SUPPORTS_LITTLE_ENDIAN
585 bool "Sibyte BCM91120x-Carmel"
588 select SIBYTE_BCM1120
590 select SYS_HAS_CPU_SB1
591 select SYS_SUPPORTS_BIG_ENDIAN
592 select SYS_SUPPORTS_LITTLE_ENDIAN
595 bool "Sibyte BCM91125C-CRhone"
598 select SIBYTE_BCM1125
600 select SYS_HAS_CPU_SB1
601 select SYS_SUPPORTS_BIG_ENDIAN
602 select SYS_SUPPORTS_HIGHMEM
603 select SYS_SUPPORTS_LITTLE_ENDIAN
606 bool "Sibyte BCM91125E-Rhone"
609 select SIBYTE_BCM1125H
611 select SYS_HAS_CPU_SB1
612 select SYS_SUPPORTS_BIG_ENDIAN
613 select SYS_SUPPORTS_LITTLE_ENDIAN
616 bool "Sibyte BCM91250A-SWARM"
619 select HAVE_PATA_PLATFORM
622 select SYS_HAS_CPU_SB1
623 select SYS_SUPPORTS_BIG_ENDIAN
624 select SYS_SUPPORTS_HIGHMEM
625 select SYS_SUPPORTS_LITTLE_ENDIAN
626 select ZONE_DMA32 if 64BIT
628 config SIBYTE_LITTLESUR
629 bool "Sibyte BCM91250C2-LittleSur"
632 select HAVE_PATA_PLATFORM
635 select SYS_HAS_CPU_SB1
636 select SYS_SUPPORTS_BIG_ENDIAN
637 select SYS_SUPPORTS_HIGHMEM
638 select SYS_SUPPORTS_LITTLE_ENDIAN
640 config SIBYTE_SENTOSA
641 bool "Sibyte BCM91250E-Sentosa"
646 select SYS_HAS_CPU_SB1
647 select SYS_SUPPORTS_BIG_ENDIAN
648 select SYS_SUPPORTS_LITTLE_ENDIAN
651 bool "Sibyte BCM91480B-BigSur"
654 select NR_CPUS_DEFAULT_4
655 select SIBYTE_BCM1x80
657 select SYS_HAS_CPU_SB1
658 select SYS_SUPPORTS_BIG_ENDIAN
659 select SYS_SUPPORTS_HIGHMEM
660 select SYS_SUPPORTS_LITTLE_ENDIAN
661 select ZONE_DMA32 if 64BIT
664 bool "SNI RM200/300/400"
665 select FW_ARC if CPU_LITTLE_ENDIAN
666 select FW_ARC32 if CPU_LITTLE_ENDIAN
667 select FW_SNIPROM if CPU_BIG_ENDIAN
668 select ARCH_MAY_HAVE_PC_FDC
672 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
673 select DMA_NONCOHERENT
674 select GENERIC_ISA_DMA
675 select HAVE_PCSPKR_PLATFORM
682 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
683 select SYS_HAS_CPU_R4X00
684 select SYS_HAS_CPU_R5000
685 select SYS_HAS_CPU_R10000
686 select R5000_CPU_SCACHE
687 select SYS_HAS_EARLY_PRINTK
688 select SYS_SUPPORTS_32BIT_KERNEL
689 select SYS_SUPPORTS_64BIT_KERNEL
690 select SYS_SUPPORTS_BIG_ENDIAN
691 select SYS_SUPPORTS_HIGHMEM
692 select SYS_SUPPORTS_LITTLE_ENDIAN
694 The SNI RM200/300/400 are MIPS-based machines manufactured by
695 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
696 Technology and now in turn merged with Fujitsu. Say Y here to
697 support this machine type.
700 bool "Toshiba TX39 series based machines"
703 bool "Toshiba TX49 series based machines"
705 config MIKROTIK_RB532
706 bool "Mikrotik RB532 boards"
709 select DMA_NONCOHERENT
712 select SYS_HAS_CPU_MIPS32_R1
713 select SYS_SUPPORTS_32BIT_KERNEL
714 select SYS_SUPPORTS_LITTLE_ENDIAN
717 select ARCH_REQUIRE_GPIOLIB
718 select MIPS_L1_CACHE_SHIFT_4
720 Support the Mikrotik(tm) RouterBoard 532 series,
721 based on the IDT RC32434 SoC.
723 config CAVIUM_OCTEON_SOC
724 bool "Cavium Networks Octeon SoC based boards"
726 select 64BIT_PHYS_ADDR
728 select SYS_SUPPORTS_64BIT_KERNEL
729 select SYS_SUPPORTS_BIG_ENDIAN
731 select SYS_SUPPORTS_HOTPLUG_CPU
732 select SYS_HAS_EARLY_PRINTK
733 select SYS_HAS_CPU_CAVIUM_OCTEON
738 select ARCH_REQUIRE_GPIOLIB
741 select ARCH_SPARSEMEM_ENABLE
742 select SYS_SUPPORTS_SMP
743 select NR_CPUS_DEFAULT_16
745 This option supports all of the Octeon reference boards from Cavium
746 Networks. It builds a kernel that dynamically determines the Octeon
747 CPU type and supports all known board reference implementations.
748 Some of the supported boards are:
755 Say Y here for most Octeon reference boards.
758 bool "Netlogic XLR/XLS based systems"
761 select SYS_HAS_CPU_XLR
762 select SYS_SUPPORTS_SMP
765 select SYS_SUPPORTS_32BIT_KERNEL
766 select SYS_SUPPORTS_64BIT_KERNEL
767 select 64BIT_PHYS_ADDR
768 select SYS_SUPPORTS_BIG_ENDIAN
769 select SYS_SUPPORTS_HIGHMEM
771 select NR_CPUS_DEFAULT_32
775 select ZONE_DMA32 if 64BIT
777 select SYS_HAS_EARLY_PRINTK
778 select SYS_SUPPORTS_ZBOOT
779 select SYS_SUPPORTS_ZBOOT_UART16550
781 Support for systems based on Netlogic XLR and XLS processors.
782 Say Y here if you have a XLR or XLS based board.
785 bool "Netlogic XLP based systems"
788 select SYS_HAS_CPU_XLP
789 select SYS_SUPPORTS_SMP
791 select SYS_SUPPORTS_32BIT_KERNEL
792 select SYS_SUPPORTS_64BIT_KERNEL
793 select 64BIT_PHYS_ADDR
794 select SYS_SUPPORTS_BIG_ENDIAN
795 select SYS_SUPPORTS_LITTLE_ENDIAN
796 select SYS_SUPPORTS_HIGHMEM
798 select NR_CPUS_DEFAULT_32
802 select ZONE_DMA32 if 64BIT
804 select SYS_HAS_EARLY_PRINTK
806 select SYS_SUPPORTS_ZBOOT
807 select SYS_SUPPORTS_ZBOOT_UART16550
809 This board is based on Netlogic XLP Processor.
810 Say Y here if you have a XLP based board.
813 bool "Para-Virtualized guest system"
817 select SYS_SUPPORTS_64BIT_KERNEL
818 select SYS_SUPPORTS_32BIT_KERNEL
819 select SYS_SUPPORTS_BIG_ENDIAN
820 select SYS_SUPPORTS_SMP
821 select NR_CPUS_DEFAULT_4
822 select SYS_HAS_EARLY_PRINTK
823 select SYS_HAS_CPU_MIPS32_R2
824 select SYS_HAS_CPU_MIPS64_R2
825 select SYS_HAS_CPU_CAVIUM_OCTEON
829 This option supports guest running under ????
833 source "arch/mips/alchemy/Kconfig"
834 source "arch/mips/ath79/Kconfig"
835 source "arch/mips/bcm47xx/Kconfig"
836 source "arch/mips/bcm63xx/Kconfig"
837 source "arch/mips/jazz/Kconfig"
838 source "arch/mips/jz4740/Kconfig"
839 source "arch/mips/lantiq/Kconfig"
840 source "arch/mips/lasat/Kconfig"
841 source "arch/mips/pmcs-msp71xx/Kconfig"
842 source "arch/mips/ralink/Kconfig"
843 source "arch/mips/sgi-ip27/Kconfig"
844 source "arch/mips/sibyte/Kconfig"
845 source "arch/mips/txx9/Kconfig"
846 source "arch/mips/vr41xx/Kconfig"
847 source "arch/mips/cavium-octeon/Kconfig"
848 source "arch/mips/loongson/Kconfig"
849 source "arch/mips/loongson1/Kconfig"
850 source "arch/mips/netlogic/Kconfig"
851 source "arch/mips/paravirt/Kconfig"
855 config RWSEM_GENERIC_SPINLOCK
859 config RWSEM_XCHGADD_ALGORITHM
862 config ARCH_HAS_ILOG2_U32
866 config ARCH_HAS_ILOG2_U64
870 config GENERIC_HWEIGHT
874 config GENERIC_CALIBRATE_DELAY
878 config SCHED_OMIT_FRAME_POINTER
883 # Select some configuration options automatically based on user selections.
888 config ARCH_MAY_HAVE_PC_FDC
933 select ARCH_REQUIRE_GPIOLIB
939 config ARCH_DMA_ADDR_T_64BIT
940 def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT
942 config DMA_MAYBE_COHERENT
943 select DMA_NONCOHERENT
949 config DMA_NONCOHERENT
951 select NEED_DMA_MAP_STATE
953 config NEED_DMA_MAP_STATE
956 config SYS_HAS_EARLY_PRINTK
960 bool "Support for hot-pluggable CPUs"
961 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
963 Say Y here to allow turning CPUs off and on. CPUs can be
964 controlled through /sys/devices/system/cpu.
965 (Note: power management support will enable this option
966 automatically on SMP systems. )
967 Say N if you want to disable CPU hotplug.
969 config SYS_SUPPORTS_HOTPLUG_CPU
993 config GENERIC_ISA_DMA
995 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
998 config GENERIC_ISA_DMA_SUPPORT_BROKEN
1000 select GENERIC_ISA_DMA
1005 config HOLES_IN_ZONE
1009 # Endianness selection. Sufficiently obscure so many users don't know what to
1010 # answer,so we try hard to limit the available choices. Also the use of a
1011 # choice statement should be more obvious to the user.
1014 prompt "Endianness selection"
1016 Some MIPS machines can be configured for either little or big endian
1017 byte order. These modes require different kernels and a different
1018 Linux distribution. In general there is one preferred byteorder for a
1019 particular system but some systems are just as commonly used in the
1020 one or the other endianness.
1022 config CPU_BIG_ENDIAN
1024 depends on SYS_SUPPORTS_BIG_ENDIAN
1026 config CPU_LITTLE_ENDIAN
1027 bool "Little endian"
1028 depends on SYS_SUPPORTS_LITTLE_ENDIAN
1035 config SYS_SUPPORTS_APM_EMULATION
1038 config SYS_SUPPORTS_BIG_ENDIAN
1041 config SYS_SUPPORTS_LITTLE_ENDIAN
1044 config SYS_SUPPORTS_HUGETLBFS
1046 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1049 config MIPS_HUGE_TLB_SUPPORT
1050 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1074 config PCI_GT64XXX_PCI0
1077 config NO_EXCEPT_FILL
1084 select DMA_NONCOHERENT
1086 select SWAP_IO_SPACE
1087 select SYS_HAS_CPU_R5500
1088 select SYS_SUPPORTS_32BIT_KERNEL
1089 select SYS_SUPPORTS_64BIT_KERNEL
1090 select SYS_SUPPORTS_BIG_ENDIAN
1097 select DMA_NONCOHERENT
1098 select SYS_HAS_CPU_MIPS32_R2
1099 select SYS_SUPPORTS_32BIT_KERNEL
1100 select SYS_SUPPORTS_LITTLE_ENDIAN
1101 select SYS_SUPPORTS_BIG_ENDIAN
1102 select SYS_SUPPORTS_MIPS16
1103 select CPU_MIPSR2_IRQ_VI
1109 config SWAP_IO_SPACE
1112 config SGI_HAS_INDYDOG
1124 config SGI_HAS_ZILOG
1127 config SGI_HAS_I8042
1130 config DEFAULT_SGI_PARTITION
1142 config MIPS_L1_CACHE_SHIFT_4
1145 config MIPS_L1_CACHE_SHIFT_5
1148 config MIPS_L1_CACHE_SHIFT_6
1151 config MIPS_L1_CACHE_SHIFT_7
1154 config MIPS_L1_CACHE_SHIFT
1156 default "4" if MIPS_L1_CACHE_SHIFT_4
1157 default "5" if MIPS_L1_CACHE_SHIFT_5
1158 default "6" if MIPS_L1_CACHE_SHIFT_6
1159 default "7" if MIPS_L1_CACHE_SHIFT_7
1162 config HAVE_STD_PC_SERIAL_PORT
1166 bool "ARC console support"
1167 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1171 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1176 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1185 menu "CPU selection"
1191 config CPU_LOONGSON3
1192 bool "Loongson 3 CPU"
1193 depends on SYS_HAS_CPU_LOONGSON3
1194 select CPU_SUPPORTS_64BIT_KERNEL
1195 select CPU_SUPPORTS_HIGHMEM
1196 select CPU_SUPPORTS_HUGEPAGES
1197 select WEAK_ORDERING
1198 select WEAK_REORDERING_BEYOND_LLSC
1200 The Loongson 3 processor implements the MIPS64R2 instruction
1201 set with many extensions.
1203 config CPU_LOONGSON2E
1205 depends on SYS_HAS_CPU_LOONGSON2E
1206 select CPU_LOONGSON2
1208 The Loongson 2E processor implements the MIPS III instruction set
1209 with many extensions.
1211 It has an internal FPGA northbridge, which is compatible to
1214 config CPU_LOONGSON2F
1216 depends on SYS_HAS_CPU_LOONGSON2F
1217 select CPU_LOONGSON2
1218 select ARCH_REQUIRE_GPIOLIB
1220 The Loongson 2F processor implements the MIPS III instruction set
1221 with many extensions.
1223 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1224 have a similar programming interface with FPGA northbridge used in
1227 config CPU_LOONGSON1B
1229 depends on SYS_HAS_CPU_LOONGSON1B
1230 select CPU_LOONGSON1
1232 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1233 release 2 instruction set.
1235 config CPU_MIPS32_R1
1236 bool "MIPS32 Release 1"
1237 depends on SYS_HAS_CPU_MIPS32_R1
1238 select CPU_HAS_PREFETCH
1239 select CPU_SUPPORTS_32BIT_KERNEL
1240 select CPU_SUPPORTS_HIGHMEM
1242 Choose this option to build a kernel for release 1 or later of the
1243 MIPS32 architecture. Most modern embedded systems with a 32-bit
1244 MIPS processor are based on a MIPS32 processor. If you know the
1245 specific type of processor in your system, choose those that one
1246 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1247 Release 2 of the MIPS32 architecture is available since several
1248 years so chances are you even have a MIPS32 Release 2 processor
1249 in which case you should choose CPU_MIPS32_R2 instead for better
1252 config CPU_MIPS32_R2
1253 bool "MIPS32 Release 2"
1254 depends on SYS_HAS_CPU_MIPS32_R2
1255 select CPU_HAS_PREFETCH
1256 select CPU_SUPPORTS_32BIT_KERNEL
1257 select CPU_SUPPORTS_HIGHMEM
1258 select CPU_SUPPORTS_MSA
1261 Choose this option to build a kernel for release 2 or later of the
1262 MIPS32 architecture. Most modern embedded systems with a 32-bit
1263 MIPS processor are based on a MIPS32 processor. If you know the
1264 specific type of processor in your system, choose those that one
1265 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1267 config CPU_MIPS64_R1
1268 bool "MIPS64 Release 1"
1269 depends on SYS_HAS_CPU_MIPS64_R1
1270 select CPU_HAS_PREFETCH
1271 select CPU_SUPPORTS_32BIT_KERNEL
1272 select CPU_SUPPORTS_64BIT_KERNEL
1273 select CPU_SUPPORTS_HIGHMEM
1274 select CPU_SUPPORTS_HUGEPAGES
1276 Choose this option to build a kernel for release 1 or later of the
1277 MIPS64 architecture. Many modern embedded systems with a 64-bit
1278 MIPS processor are based on a MIPS64 processor. If you know the
1279 specific type of processor in your system, choose those that one
1280 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1281 Release 2 of the MIPS64 architecture is available since several
1282 years so chances are you even have a MIPS64 Release 2 processor
1283 in which case you should choose CPU_MIPS64_R2 instead for better
1286 config CPU_MIPS64_R2
1287 bool "MIPS64 Release 2"
1288 depends on SYS_HAS_CPU_MIPS64_R2
1289 select CPU_HAS_PREFETCH
1290 select CPU_SUPPORTS_32BIT_KERNEL
1291 select CPU_SUPPORTS_64BIT_KERNEL
1292 select CPU_SUPPORTS_HIGHMEM
1293 select CPU_SUPPORTS_HUGEPAGES
1294 select CPU_SUPPORTS_MSA
1296 Choose this option to build a kernel for release 2 or later of the
1297 MIPS64 architecture. Many modern embedded systems with a 64-bit
1298 MIPS processor are based on a MIPS64 processor. If you know the
1299 specific type of processor in your system, choose those that one
1300 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1304 depends on SYS_HAS_CPU_R3000
1306 select CPU_SUPPORTS_32BIT_KERNEL
1307 select CPU_SUPPORTS_HIGHMEM
1309 Please make sure to pick the right CPU type. Linux/MIPS is not
1310 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1311 *not* work on R4000 machines and vice versa. However, since most
1312 of the supported machines have an R4000 (or similar) CPU, R4x00
1313 might be a safe bet. If the resulting kernel does not work,
1314 try to recompile with R3000.
1318 depends on SYS_HAS_CPU_TX39XX
1319 select CPU_SUPPORTS_32BIT_KERNEL
1323 depends on SYS_HAS_CPU_VR41XX
1324 select CPU_SUPPORTS_32BIT_KERNEL
1325 select CPU_SUPPORTS_64BIT_KERNEL
1327 The options selects support for the NEC VR4100 series of processors.
1328 Only choose this option if you have one of these processors as a
1329 kernel built with this option will not run on any other type of
1330 processor or vice versa.
1334 depends on SYS_HAS_CPU_R4300
1335 select CPU_SUPPORTS_32BIT_KERNEL
1336 select CPU_SUPPORTS_64BIT_KERNEL
1338 MIPS Technologies R4300-series processors.
1342 depends on SYS_HAS_CPU_R4X00
1343 select CPU_SUPPORTS_32BIT_KERNEL
1344 select CPU_SUPPORTS_64BIT_KERNEL
1345 select CPU_SUPPORTS_HUGEPAGES
1347 MIPS Technologies R4000-series processors other than 4300, including
1348 the R4000, R4400, R4600, and 4700.
1352 depends on SYS_HAS_CPU_TX49XX
1353 select CPU_HAS_PREFETCH
1354 select CPU_SUPPORTS_32BIT_KERNEL
1355 select CPU_SUPPORTS_64BIT_KERNEL
1356 select CPU_SUPPORTS_HUGEPAGES
1360 depends on SYS_HAS_CPU_R5000
1361 select CPU_SUPPORTS_32BIT_KERNEL
1362 select CPU_SUPPORTS_64BIT_KERNEL
1363 select CPU_SUPPORTS_HUGEPAGES
1365 MIPS Technologies R5000-series processors other than the Nevada.
1369 depends on SYS_HAS_CPU_R5432
1370 select CPU_SUPPORTS_32BIT_KERNEL
1371 select CPU_SUPPORTS_64BIT_KERNEL
1372 select CPU_SUPPORTS_HUGEPAGES
1376 depends on SYS_HAS_CPU_R5500
1377 select CPU_SUPPORTS_32BIT_KERNEL
1378 select CPU_SUPPORTS_64BIT_KERNEL
1379 select CPU_SUPPORTS_HUGEPAGES
1381 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1386 depends on SYS_HAS_CPU_R6000
1387 select CPU_SUPPORTS_32BIT_KERNEL
1389 MIPS Technologies R6000 and R6000A series processors. Note these
1390 processors are extremely rare and the support for them is incomplete.
1394 depends on SYS_HAS_CPU_NEVADA
1395 select CPU_SUPPORTS_32BIT_KERNEL
1396 select CPU_SUPPORTS_64BIT_KERNEL
1397 select CPU_SUPPORTS_HUGEPAGES
1399 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1403 depends on SYS_HAS_CPU_R8000
1404 select CPU_HAS_PREFETCH
1405 select CPU_SUPPORTS_64BIT_KERNEL
1407 MIPS Technologies R8000 processors. Note these processors are
1408 uncommon and the support for them is incomplete.
1412 depends on SYS_HAS_CPU_R10000
1413 select CPU_HAS_PREFETCH
1414 select CPU_SUPPORTS_32BIT_KERNEL
1415 select CPU_SUPPORTS_64BIT_KERNEL
1416 select CPU_SUPPORTS_HIGHMEM
1417 select CPU_SUPPORTS_HUGEPAGES
1419 MIPS Technologies R10000-series processors.
1423 depends on SYS_HAS_CPU_RM7000
1424 select CPU_HAS_PREFETCH
1425 select CPU_SUPPORTS_32BIT_KERNEL
1426 select CPU_SUPPORTS_64BIT_KERNEL
1427 select CPU_SUPPORTS_HIGHMEM
1428 select CPU_SUPPORTS_HUGEPAGES
1432 depends on SYS_HAS_CPU_SB1
1433 select CPU_SUPPORTS_32BIT_KERNEL
1434 select CPU_SUPPORTS_64BIT_KERNEL
1435 select CPU_SUPPORTS_HIGHMEM
1436 select CPU_SUPPORTS_HUGEPAGES
1437 select WEAK_ORDERING
1439 config CPU_CAVIUM_OCTEON
1440 bool "Cavium Octeon processor"
1441 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1442 select CPU_HAS_PREFETCH
1443 select CPU_SUPPORTS_64BIT_KERNEL
1444 select WEAK_ORDERING
1445 select CPU_SUPPORTS_HIGHMEM
1446 select CPU_SUPPORTS_HUGEPAGES
1447 select USB_EHCI_BIG_ENDIAN_MMIO
1448 select MIPS_L1_CACHE_SHIFT_7
1450 The Cavium Octeon processor is a highly integrated chip containing
1451 many ethernet hardware widgets for networking tasks. The processor
1452 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1453 Full details can be found at http://www.caviumnetworks.com.
1456 bool "Broadcom BMIPS"
1457 depends on SYS_HAS_CPU_BMIPS
1459 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1460 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1461 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1462 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1463 select CPU_SUPPORTS_32BIT_KERNEL
1464 select DMA_NONCOHERENT
1466 select SWAP_IO_SPACE
1467 select WEAK_ORDERING
1468 select CPU_SUPPORTS_HIGHMEM
1469 select CPU_HAS_PREFETCH
1471 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1474 bool "Netlogic XLR SoC"
1475 depends on SYS_HAS_CPU_XLR
1476 select CPU_SUPPORTS_32BIT_KERNEL
1477 select CPU_SUPPORTS_64BIT_KERNEL
1478 select CPU_SUPPORTS_HIGHMEM
1479 select CPU_SUPPORTS_HUGEPAGES
1480 select WEAK_ORDERING
1481 select WEAK_REORDERING_BEYOND_LLSC
1483 Netlogic Microsystems XLR/XLS processors.
1486 bool "Netlogic XLP SoC"
1487 depends on SYS_HAS_CPU_XLP
1488 select CPU_SUPPORTS_32BIT_KERNEL
1489 select CPU_SUPPORTS_64BIT_KERNEL
1490 select CPU_SUPPORTS_HIGHMEM
1491 select WEAK_ORDERING
1492 select WEAK_REORDERING_BEYOND_LLSC
1493 select CPU_HAS_PREFETCH
1496 Netlogic Microsystems XLP processors.
1499 config CPU_MIPS32_3_5_FEATURES
1500 bool "MIPS32 Release 3.5 Features"
1501 depends on SYS_HAS_CPU_MIPS32_R3_5
1502 depends on CPU_MIPS32_R2
1504 Choose this option to build a kernel for release 2 or later of the
1505 MIPS32 architecture including features from the 3.5 release such as
1506 support for Enhanced Virtual Addressing (EVA).
1508 config CPU_MIPS32_3_5_EVA
1509 bool "Enhanced Virtual Addressing (EVA)"
1510 depends on CPU_MIPS32_3_5_FEATURES
1514 Choose this option if you want to enable the Enhanced Virtual
1515 Addressing (EVA) on your MIPS32 core (such as proAptiv).
1516 One of its primary benefits is an increase in the maximum size
1517 of lowmem (up to 3GB). If unsure, say 'N' here.
1520 config CPU_NOP_WORKAROUNDS
1523 config CPU_JUMP_WORKAROUNDS
1526 config CPU_LOONGSON2F_WORKAROUNDS
1527 bool "Loongson 2F Workarounds"
1529 select CPU_NOP_WORKAROUNDS
1530 select CPU_JUMP_WORKAROUNDS
1532 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1533 require workarounds. Without workarounds the system may hang
1534 unexpectedly. For more information please refer to the gas
1535 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1537 Loongson 2F03 and later have fixed these issues and no workarounds
1538 are needed. The workarounds have no significant side effect on them
1539 but may decrease the performance of the system so this option should
1540 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1543 If unsure, please say Y.
1544 endif # CPU_LOONGSON2F
1546 config SYS_SUPPORTS_ZBOOT
1548 select HAVE_KERNEL_GZIP
1549 select HAVE_KERNEL_BZIP2
1550 select HAVE_KERNEL_LZ4
1551 select HAVE_KERNEL_LZMA
1552 select HAVE_KERNEL_LZO
1553 select HAVE_KERNEL_XZ
1555 config SYS_SUPPORTS_ZBOOT_UART16550
1557 select SYS_SUPPORTS_ZBOOT
1559 config CPU_LOONGSON2
1561 select CPU_SUPPORTS_32BIT_KERNEL
1562 select CPU_SUPPORTS_64BIT_KERNEL
1563 select CPU_SUPPORTS_HIGHMEM
1564 select CPU_SUPPORTS_HUGEPAGES
1566 config CPU_LOONGSON1
1570 select CPU_HAS_PREFETCH
1571 select CPU_SUPPORTS_32BIT_KERNEL
1572 select CPU_SUPPORTS_HIGHMEM
1574 config CPU_BMIPS32_3300
1575 select SMP_UP if SMP
1578 config CPU_BMIPS4350
1580 select SYS_SUPPORTS_SMP
1581 select SYS_SUPPORTS_HOTPLUG_CPU
1583 config CPU_BMIPS4380
1585 select SYS_SUPPORTS_SMP
1586 select SYS_SUPPORTS_HOTPLUG_CPU
1588 config CPU_BMIPS5000
1590 select MIPS_CPU_SCACHE
1591 select SYS_SUPPORTS_SMP
1592 select SYS_SUPPORTS_HOTPLUG_CPU
1594 config SYS_HAS_CPU_LOONGSON3
1596 select CPU_SUPPORTS_CPUFREQ
1598 config SYS_HAS_CPU_LOONGSON2E
1601 config SYS_HAS_CPU_LOONGSON2F
1603 select CPU_SUPPORTS_CPUFREQ
1604 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1605 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1607 config SYS_HAS_CPU_LOONGSON1B
1610 config SYS_HAS_CPU_MIPS32_R1
1613 config SYS_HAS_CPU_MIPS32_R2
1616 config SYS_HAS_CPU_MIPS32_R3_5
1619 config SYS_HAS_CPU_MIPS64_R1
1622 config SYS_HAS_CPU_MIPS64_R2
1625 config SYS_HAS_CPU_R3000
1628 config SYS_HAS_CPU_TX39XX
1631 config SYS_HAS_CPU_VR41XX
1634 config SYS_HAS_CPU_R4300
1637 config SYS_HAS_CPU_R4X00
1640 config SYS_HAS_CPU_TX49XX
1643 config SYS_HAS_CPU_R5000
1646 config SYS_HAS_CPU_R5432
1649 config SYS_HAS_CPU_R5500
1652 config SYS_HAS_CPU_R6000
1655 config SYS_HAS_CPU_NEVADA
1658 config SYS_HAS_CPU_R8000
1661 config SYS_HAS_CPU_R10000
1664 config SYS_HAS_CPU_RM7000
1667 config SYS_HAS_CPU_SB1
1670 config SYS_HAS_CPU_CAVIUM_OCTEON
1673 config SYS_HAS_CPU_BMIPS
1676 config SYS_HAS_CPU_BMIPS32_3300
1678 select SYS_HAS_CPU_BMIPS
1680 config SYS_HAS_CPU_BMIPS4350
1682 select SYS_HAS_CPU_BMIPS
1684 config SYS_HAS_CPU_BMIPS4380
1686 select SYS_HAS_CPU_BMIPS
1688 config SYS_HAS_CPU_BMIPS5000
1690 select SYS_HAS_CPU_BMIPS
1692 config SYS_HAS_CPU_XLR
1695 config SYS_HAS_CPU_XLP
1698 config MIPS_MALTA_PM
1699 depends on MIPS_MALTA
1705 # CPU may reorder R->R, R->W, W->R, W->W
1706 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1708 config WEAK_ORDERING
1712 # CPU may reorder reads and writes beyond LL/SC
1713 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1715 config WEAK_REORDERING_BEYOND_LLSC
1720 # These two indicate any level of the MIPS32 and MIPS64 architecture
1724 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1728 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1731 # These two indicate the revision of the architecture, either Release 1 or Release 2
1735 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1739 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1744 config SYS_SUPPORTS_32BIT_KERNEL
1746 config SYS_SUPPORTS_64BIT_KERNEL
1748 config CPU_SUPPORTS_32BIT_KERNEL
1750 config CPU_SUPPORTS_64BIT_KERNEL
1752 config CPU_SUPPORTS_CPUFREQ
1754 config CPU_SUPPORTS_ADDRWINCFG
1756 config CPU_SUPPORTS_HUGEPAGES
1758 config CPU_SUPPORTS_UNCACHED_ACCELERATED
1760 config MIPS_PGD_C0_CONTEXT
1762 default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
1765 # Set to y for ptrace access to watch registers.
1767 config HARDWARE_WATCHPOINTS
1769 default y if CPU_MIPSR1 || CPU_MIPSR2
1774 prompt "Kernel code model"
1776 You should only select this option if you have a workload that
1777 actually benefits from 64-bit processing or if your machine has
1778 large memory. You will only be presented a single option in this
1779 menu if your system does not support both 32-bit and 64-bit kernels.
1782 bool "32-bit kernel"
1783 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1786 Select this option if you want to build a 32-bit kernel.
1788 bool "64-bit kernel"
1789 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1791 Select this option if you want to build a 64-bit kernel.
1796 bool "KVM Guest Kernel"
1797 depends on BROKEN_ON_SMP
1799 Select this option if building a guest kernel for KVM (Trap & Emulate) mode
1801 config KVM_GUEST_TIMER_FREQ
1802 int "Count/Compare Timer Frequency (MHz)"
1803 depends on KVM_GUEST
1806 Set this to non-zero if building a guest kernel for KVM to skip RTC
1807 emulation when determining guest CPU Frequency. Instead, the guest's
1808 timer frequency is specified directly.
1811 prompt "Kernel page size"
1812 default PAGE_SIZE_4KB
1814 config PAGE_SIZE_4KB
1816 depends on !CPU_LOONGSON2 && !CPU_LOONGSON3
1818 This option select the standard 4kB Linux page size. On some
1819 R3000-family processors this is the only available page size. Using
1820 4kB page size will minimize memory consumption and is therefore
1821 recommended for low memory systems.
1823 config PAGE_SIZE_8KB
1825 depends on CPU_R8000 || CPU_CAVIUM_OCTEON
1827 Using 8kB page size will result in higher performance kernel at
1828 the price of higher memory consumption. This option is available
1829 only on R8000 and cnMIPS processors. Note that you will need a
1830 suitable Linux distribution to support this.
1832 config PAGE_SIZE_16KB
1834 depends on !CPU_R3000 && !CPU_TX39XX
1836 Using 16kB page size will result in higher performance kernel at
1837 the price of higher memory consumption. This option is available on
1838 all non-R3000 family processors. Note that you will need a suitable
1839 Linux distribution to support this.
1841 config PAGE_SIZE_32KB
1843 depends on CPU_CAVIUM_OCTEON
1845 Using 32kB page size will result in higher performance kernel at
1846 the price of higher memory consumption. This option is available
1847 only on cnMIPS cores. Note that you will need a suitable Linux
1848 distribution to support this.
1850 config PAGE_SIZE_64KB
1852 depends on !CPU_R3000 && !CPU_TX39XX
1854 Using 64kB page size will result in higher performance kernel at
1855 the price of higher memory consumption. This option is available on
1856 all non-R3000 family processor. Not that at the time of this
1857 writing this option is still high experimental.
1861 config FORCE_MAX_ZONEORDER
1862 int "Maximum zone order"
1863 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
1864 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
1865 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
1866 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
1867 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
1868 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
1872 The kernel memory allocator divides physically contiguous memory
1873 blocks into "zones", where each zone is a power of two number of
1874 pages. This option selects the largest power of two that the kernel
1875 keeps in the memory allocator. If you need to allocate very large
1876 blocks of physically contiguous memory, then you may need to
1877 increase this value.
1879 This config option is actually maximum order plus one. For example,
1880 a value of 11 means that the largest free memory block is 2^10 pages.
1882 The page size is not necessarily 4KB. Keep this in mind
1883 when choosing a value for this option.
1886 bool "Use GIC global counter for clock events"
1887 depends on IRQ_GIC && !MIPS_SEAD3
1889 Use the GIC global counter for the clock events. The R4K clock
1890 event driver is always present, so if the platform ends up not
1891 detecting a GIC, it will fall back to the R4K timer for the
1892 generation of clock events.
1897 config IP22_CPU_SCACHE
1902 # Support for a MIPS32 / MIPS64 style S-caches
1904 config MIPS_CPU_SCACHE
1907 select MIPS_L1_CACHE_SHIFT_6
1909 config R5000_CPU_SCACHE
1913 config RM7000_CPU_SCACHE
1917 config SIBYTE_DMA_PAGEOPS
1918 bool "Use DMA to clear/copy pages"
1921 Instead of using the CPU to zero and copy pages, use a Data Mover
1922 channel. These DMA channels are otherwise unused by the standard
1923 SiByte Linux port. Seems to give a small performance benefit.
1925 config CPU_HAS_PREFETCH
1928 config CPU_GENERIC_DUMP_TLB
1930 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
1934 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1936 config CPU_R4K_CACHE_TLB
1938 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1941 bool "MIPS MT SMP support (1 TC on each available VPE)"
1942 depends on SYS_SUPPORTS_MULTITHREADING
1943 select CPU_MIPSR2_IRQ_VI
1944 select CPU_MIPSR2_IRQ_EI
1950 select SYS_SUPPORTS_SMP
1951 select SYS_SUPPORTS_SCHED_SMT
1952 select MIPS_PERF_SHARED_TC_COUNTERS
1954 This is a kernel model which is known as SMVP. This is supported
1955 on cores with the MT ASE and uses the available VPEs to implement
1956 virtual processors which supports SMP. This is equivalent to the
1957 Intel Hyperthreading feature. For further information go to
1958 <http://www.imgtec.com/mips/mips-multithreading.asp>.
1964 bool "SMT (multithreading) scheduler support"
1965 depends on SYS_SUPPORTS_SCHED_SMT
1968 SMT scheduler support improves the CPU scheduler's decision making
1969 when dealing with MIPS MT enabled cores at a cost of slightly
1970 increased overhead in some places. If unsure say N here.
1972 config SYS_SUPPORTS_SCHED_SMT
1975 config SYS_SUPPORTS_MULTITHREADING
1978 config MIPS_MT_FPAFF
1979 bool "Dynamic FPU affinity for FP-intensive threads"
1981 depends on MIPS_MT_SMP
1983 config MIPS_VPE_LOADER
1984 bool "VPE loader support."
1985 depends on SYS_SUPPORTS_MULTITHREADING && MODULES
1986 select CPU_MIPSR2_IRQ_VI
1987 select CPU_MIPSR2_IRQ_EI
1990 Includes a loader for loading an elf relocatable object
1991 onto another VPE and running it.
1993 config MIPS_VPE_LOADER_CMP
1996 depends on MIPS_VPE_LOADER && MIPS_CMP
1998 config MIPS_VPE_LOADER_MT
2001 depends on MIPS_VPE_LOADER && !MIPS_CMP
2003 config MIPS_VPE_LOADER_TOM
2004 bool "Load VPE program into memory hidden from linux"
2005 depends on MIPS_VPE_LOADER
2008 The loader can use memory that is present but has been hidden from
2009 Linux using the kernel command line option "mem=xxMB". It's up to
2010 you to ensure the amount you put in the option and the space your
2011 program requires is less or equal to the amount physically present.
2013 config MIPS_VPE_APSP_API
2014 bool "Enable support for AP/SP API (RTLX)"
2015 depends on MIPS_VPE_LOADER
2018 config MIPS_VPE_APSP_API_CMP
2021 depends on MIPS_VPE_APSP_API && MIPS_CMP
2023 config MIPS_VPE_APSP_API_MT
2026 depends on MIPS_VPE_APSP_API && !MIPS_CMP
2029 bool "MIPS CMP framework support (DEPRECATED)"
2030 depends on SYS_SUPPORTS_MIPS_CMP
2033 select WEAK_ORDERING
2036 Select this if you are using a bootloader which implements the "CMP
2037 framework" protocol (ie. YAMON) and want your kernel to make use of
2038 its ability to start secondary CPUs.
2040 Unless you have a specific need, you should use CONFIG_MIPS_CPS
2044 bool "MIPS Coherent Processing System support"
2045 depends on SYS_SUPPORTS_MIPS_CPS
2048 select MIPS_CPS_PM if HOTPLUG_CPU
2051 select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2052 select SYS_SUPPORTS_HOTPLUG_CPU
2053 select SYS_SUPPORTS_SMP
2054 select WEAK_ORDERING
2056 Select this if you wish to run an SMP kernel across multiple cores
2057 within a MIPS Coherent Processing System. When this option is
2058 enabled the kernel will probe for other cores and boot them with
2059 no external assistance. It is safe to enable this when hardware
2060 support is unavailable.
2075 config SB1_PASS_1_WORKAROUNDS
2077 depends on CPU_SB1_PASS_1
2080 config SB1_PASS_2_WORKAROUNDS
2082 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2085 config SB1_PASS_2_1_WORKAROUNDS
2087 depends on CPU_SB1 && CPU_SB1_PASS_2
2091 config 64BIT_PHYS_ADDR
2094 config ARCH_PHYS_ADDR_T_64BIT
2095 def_bool 64BIT_PHYS_ADDR
2097 config CPU_HAS_SMARTMIPS
2098 depends on SYS_SUPPORTS_SMARTMIPS
2099 bool "Support for the SmartMIPS ASE"
2101 SmartMIPS is a extension of the MIPS32 architecture aimed at
2102 increased security at both hardware and software level for
2103 smartcards. Enabling this option will allow proper use of the
2104 SmartMIPS instructions by Linux applications. However a kernel with
2105 this option will not work on a MIPS core without SmartMIPS core. If
2106 you don't know you probably don't have SmartMIPS and should say N
2109 config CPU_MICROMIPS
2110 depends on SYS_SUPPORTS_MICROMIPS
2111 bool "Build kernel using microMIPS ISA"
2113 When this option is enabled the kernel will be built using the
2117 bool "Support for the MIPS SIMD Architecture (EXPERIMENTAL)"
2118 depends on CPU_SUPPORTS_MSA
2119 depends on 64BIT || MIPS_O32_FP64_SUPPORT
2121 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2122 and a set of SIMD instructions to operate on them. When this option
2123 is enabled the kernel will support allocating & switching MSA
2124 vector register contexts. If you know that your kernel will only be
2125 running on CPUs which do not support MSA or that your userland will
2126 not be making use of it then you may wish to say N here to reduce
2127 the size & complexity of your kernel.
2138 # Vectored interrupt mode is an R2 feature
2140 config CPU_MIPSR2_IRQ_VI
2144 # Extended interrupt mode is an R2 feature
2146 config CPU_MIPSR2_IRQ_EI
2151 depends on !CPU_R3000
2157 config CPU_DADDI_WORKAROUNDS
2160 config CPU_R4000_WORKAROUNDS
2162 select CPU_R4400_WORKAROUNDS
2164 config CPU_R4400_WORKAROUNDS
2168 # - Highmem only makes sense for the 32-bit kernel.
2169 # - The current highmem code will only work properly on physically indexed
2170 # caches such as R3000, SB1, R7000 or those that look like they're virtually
2171 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2172 # moment we protect the user and offer the highmem option only on machines
2173 # where it's known to be safe. This will not offer highmem on a few systems
2174 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2175 # indexed CPUs but we're playing safe.
2176 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2177 # know they might have memory configurations that could make use of highmem
2181 bool "High Memory Support"
2182 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2184 config CPU_SUPPORTS_HIGHMEM
2187 config SYS_SUPPORTS_HIGHMEM
2190 config SYS_SUPPORTS_SMARTMIPS
2193 config SYS_SUPPORTS_MICROMIPS
2196 config SYS_SUPPORTS_MIPS16
2199 This option must be set if a kernel might be executed on a MIPS16-
2200 enabled CPU even if MIPS16 is not actually being used. In other
2201 words, it makes the kernel MIPS16-tolerant.
2203 config CPU_SUPPORTS_MSA
2206 config ARCH_FLATMEM_ENABLE
2208 depends on !NUMA && !CPU_LOONGSON2
2210 config ARCH_DISCONTIGMEM_ENABLE
2212 default y if SGI_IP27
2214 Say Y to support efficient handling of discontiguous physical memory,
2215 for architectures which are either NUMA (Non-Uniform Memory Access)
2216 or have huge holes in the physical address space for other reasons.
2217 See <file:Documentation/vm/numa> for more.
2219 config ARCH_SPARSEMEM_ENABLE
2221 select SPARSEMEM_STATIC
2225 depends on SYS_SUPPORTS_NUMA
2227 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2228 Access). This option improves performance on systems with more
2229 than two nodes; on two node systems it is generally better to
2230 leave it disabled; on single node systems disable this option
2233 config SYS_SUPPORTS_NUMA
2239 depends on NEED_MULTIPLE_NODES
2241 config HW_PERF_EVENTS
2242 bool "Enable hardware performance counter support for perf events"
2243 depends on PERF_EVENTS && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP)
2246 Enable hardware performance counter support for perf events. If
2247 disabled, perf events will use software events only.
2252 bool "Multi-Processing support"
2253 depends on SYS_SUPPORTS_SMP
2255 This enables support for systems with more than one CPU. If you have
2256 a system with only one CPU, say N. If you have a system with more
2257 than one CPU, say Y.
2259 If you say N here, the kernel will run on uni- and multiprocessor
2260 machines, but will use only one CPU of a multiprocessor machine. If
2261 you say Y here, the kernel will run on many, but not all,
2262 uniprocessor machines. On a uniprocessor machine, the kernel
2263 will run faster if you say N here.
2265 People using multiprocessor machines who say Y here should also say
2266 Y to "Enhanced Real Time Clock Support", below.
2268 See also the SMP-HOWTO available at
2269 <http://www.tldp.org/docs.html#howto>.
2271 If you don't know what to do here, say N.
2276 config SYS_SUPPORTS_MIPS_CMP
2279 config SYS_SUPPORTS_MIPS_CPS
2282 config SYS_SUPPORTS_SMP
2285 config NR_CPUS_DEFAULT_4
2288 config NR_CPUS_DEFAULT_8
2291 config NR_CPUS_DEFAULT_16
2294 config NR_CPUS_DEFAULT_32
2297 config NR_CPUS_DEFAULT_64
2301 int "Maximum number of CPUs (2-256)"
2304 default "4" if NR_CPUS_DEFAULT_4
2305 default "8" if NR_CPUS_DEFAULT_8
2306 default "16" if NR_CPUS_DEFAULT_16
2307 default "32" if NR_CPUS_DEFAULT_32
2308 default "64" if NR_CPUS_DEFAULT_64
2310 This allows you to specify the maximum number of CPUs which this
2311 kernel will support. The maximum supported value is 32 for 32-bit
2312 kernel and 64 for 64-bit kernels; the minimum value which makes
2313 sense is 1 for Qemu (useful only for kernel debugging purposes)
2314 and 2 for all others.
2316 This is purely to save memory - each supported CPU adds
2317 approximately eight kilobytes to the kernel image. For best
2318 performance should round up your number of processors to the next
2321 config MIPS_PERF_SHARED_TC_COUNTERS
2325 # Timer Interrupt Frequency Configuration
2329 prompt "Timer frequency"
2332 Allows the configuration of the timer frequency.
2335 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2338 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2341 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2344 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2347 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2350 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2353 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2357 config SYS_SUPPORTS_48HZ
2360 config SYS_SUPPORTS_100HZ
2363 config SYS_SUPPORTS_128HZ
2366 config SYS_SUPPORTS_250HZ
2369 config SYS_SUPPORTS_256HZ
2372 config SYS_SUPPORTS_1000HZ
2375 config SYS_SUPPORTS_1024HZ
2378 config SYS_SUPPORTS_ARBIT_HZ
2380 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2381 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2382 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2383 !SYS_SUPPORTS_1024HZ
2388 default 100 if HZ_100
2389 default 128 if HZ_128
2390 default 250 if HZ_250
2391 default 256 if HZ_256
2392 default 1000 if HZ_1000
2393 default 1024 if HZ_1024
2395 source "kernel/Kconfig.preempt"
2398 bool "Kexec system call"
2400 kexec is a system call that implements the ability to shutdown your
2401 current kernel, and to start another kernel. It is like a reboot
2402 but it is independent of the system firmware. And like a reboot
2403 you can start any kernel with it, not just Linux.
2405 The name comes from the similarity to the exec system call.
2407 It is an ongoing process to be certain the hardware in a machine
2408 is properly shutdown, so do not be surprised if this code does not
2409 initially work for you. As of this writing the exact hardware
2410 interface is strongly in flux, so no good recommendation can be
2414 bool "Kernel crash dumps"
2416 Generate crash dump after being started by kexec.
2417 This should be normally only set in special crash dump kernels
2418 which are loaded in the main kernel with kexec-tools into
2419 a specially reserved region and then later executed after
2420 a crash by kdump/kexec. The crash dump kernel must be compiled
2421 to a memory address not used by the main kernel or firmware using
2424 config PHYSICAL_START
2425 hex "Physical address where the kernel is loaded"
2426 default "0xffffffff84000000" if 64BIT
2427 default "0x84000000" if 32BIT
2428 depends on CRASH_DUMP
2430 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2431 If you plan to use kernel for capturing the crash dump change
2432 this value to start of the reserved region (the "X" value as
2433 specified in the "crashkernel=YM@XM" command line boot parameter
2434 passed to the panic-ed kernel).
2437 bool "Enable seccomp to safely compute untrusted bytecode"
2441 This kernel feature is useful for number crunching applications
2442 that may need to compute untrusted bytecode during their
2443 execution. By using pipes or other transports made available to
2444 the process as file descriptors supporting the read/write
2445 syscalls, it's possible to isolate those applications in
2446 their own address space using seccomp. Once seccomp is
2447 enabled via /proc/<pid>/seccomp, it cannot be disabled
2448 and the task is only allowed to execute a few safe syscalls
2449 defined by each seccomp mode.
2451 If unsure, say Y. Only embedded should say N here.
2453 config MIPS_O32_FP64_SUPPORT
2454 bool "Support for O32 binaries using 64-bit FP (EXPERIMENTAL)"
2455 depends on 32BIT || MIPS32_O32
2457 When this is enabled, the kernel will support use of 64-bit floating
2458 point registers with binaries using the O32 ABI along with the
2459 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
2460 32-bit MIPS systems this support is at the cost of increasing the
2461 size and complexity of the compiled FPU emulator. Thus if you are
2462 running a MIPS32 system and know that none of your userland binaries
2463 will require 64-bit floating point, you may wish to reduce the size
2464 of your kernel & potentially improve FP emulation performance by
2467 Although binutils currently supports use of this flag the details
2468 concerning its effect upon the O32 ABI in userland are still being
2469 worked on. In order to avoid userland becoming dependant upon current
2470 behaviour before the details have been finalised, this option should
2471 be considered experimental and only enabled by those working upon
2479 select OF_EARLY_FLATTREE
2484 config LOCKDEP_SUPPORT
2488 config STACKTRACE_SUPPORT
2492 source "init/Kconfig"
2494 source "kernel/Kconfig.freezer"
2496 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2504 bool "Support for PCI controller"
2505 depends on HW_HAS_PCI
2507 select NO_GENERIC_PCI_IOPORT_MAP
2509 Find out whether you have a PCI motherboard. PCI is the name of a
2510 bus system, i.e. the way the CPU talks to the other stuff inside
2511 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2515 bool "Support for HT-linked PCI"
2517 depends on CPU_LOONGSON3
2521 Loongson family machines use Hyper-Transport bus for inter-core
2522 connection and device connection. The PCI bus is a subordinate
2523 linked at HT. Choose Y for Loongson-3 based machines.
2528 source "drivers/pci/Kconfig"
2530 source "drivers/pci/pcie/Kconfig"
2533 # ISA support is now enabled via select. Too many systems still have the one
2534 # or other ISA chip on the board that users don't know about so don't expect
2535 # users to choose the right thing ...
2542 depends on HW_HAS_EISA
2544 select GENERIC_ISA_DMA
2546 The Extended Industry Standard Architecture (EISA) bus was
2547 developed as an open alternative to the IBM MicroChannel bus.
2549 The EISA bus provided some of the features of the IBM MicroChannel
2550 bus while maintaining backward compatibility with cards made for
2551 the older ISA bus. The EISA bus saw limited use between 1988 and
2552 1995 when it was made obsolete by the PCI bus.
2554 Say Y here if you are building a kernel for an EISA-based machine.
2558 source "drivers/eisa/Kconfig"
2561 bool "TURBOchannel support"
2562 depends on MACH_DECSTATION
2564 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2565 processors. TURBOchannel programming specifications are available
2567 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2569 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2570 Linux driver support status is documented at:
2571 <http://www.linux-mips.org/wiki/DECstation>
2581 select MIPS_EXTERNAL_TIMER
2589 source "drivers/pcmcia/Kconfig"
2591 source "drivers/pci/hotplug/Kconfig"
2594 tristate "RapidIO support"
2598 If you say Y here, the kernel will include drivers and
2599 infrastructure code to support RapidIO interconnect devices.
2601 source "drivers/rapidio/Kconfig"
2605 menu "Executable file formats"
2607 source "fs/Kconfig.binfmt"
2612 config MIPS32_COMPAT
2613 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2616 Select this option if you want Linux/MIPS 32-bit binary
2617 compatibility. Since all software available for Linux/MIPS is
2618 currently 32-bit you should say Y here.
2622 depends on MIPS32_COMPAT
2623 select ARCH_WANT_OLD_COMPAT_IPC
2626 config SYSVIPC_COMPAT
2628 depends on COMPAT && SYSVIPC
2632 bool "Kernel support for o32 binaries"
2633 depends on MIPS32_COMPAT
2635 Select this option if you want to run o32 binaries. These are pure
2636 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2637 existing binaries are in this format.
2642 bool "Kernel support for n32 binaries"
2643 depends on MIPS32_COMPAT
2645 Select this option if you want to run n32 binaries. These are
2646 64-bit binaries using 32-bit quantities for addressing and certain
2647 data that would normally be 64-bit. They are used in special
2654 default y if MIPS32_O32 || MIPS32_N32
2658 menu "Power management options"
2660 config ARCH_HIBERNATION_POSSIBLE
2662 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2664 config ARCH_SUSPEND_POSSIBLE
2666 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2668 source "kernel/power/Kconfig"
2672 config MIPS_EXTERNAL_TIMER
2675 menu "CPU Power Management"
2677 if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
2678 source "drivers/cpufreq/Kconfig"
2681 source "drivers/cpuidle/Kconfig"
2685 source "net/Kconfig"
2687 source "drivers/Kconfig"
2689 source "drivers/firmware/Kconfig"
2693 source "arch/mips/Kconfig.debug"
2695 source "security/Kconfig"
2697 source "crypto/Kconfig"
2699 source "lib/Kconfig"
2701 source "arch/mips/kvm/Kconfig"