Version:  2.0.40 2.2.26 2.4.37 3.6 3.7 3.8 3.9 3.10 3.11 3.12 3.13 3.14 3.15 3.16 3.17 3.18 3.19 4.0 4.1 4.2

Linux/arch/mips/Kconfig

  1 config MIPS
  2         bool
  3         default y
  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
  8         select HAVE_IDE
  9         select HAVE_OPROFILE
 10         select HAVE_PERF_EVENTS
 11         select PERF_USE_VMALLOC
 12         select HAVE_ARCH_KGDB
 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
 22         select HAVE_KPROBES
 23         select HAVE_KRETPROBES
 24         select HAVE_SYSCALL_TRACEPOINTS
 25         select HAVE_DEBUG_KMEMLEAK
 26         select HAVE_SYSCALL_TRACEPOINTS
 27         select ARCH_HAS_ELF_RANDOMIZE
 28         select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT
 29         select RTC_LIB if !MACH_LOONGSON64
 30         select GENERIC_ATOMIC64 if !64BIT
 31         select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
 32         select HAVE_DMA_ATTRS
 33         select HAVE_DMA_CONTIGUOUS
 34         select HAVE_DMA_API_DEBUG
 35         select GENERIC_IRQ_PROBE
 36         select GENERIC_IRQ_SHOW
 37         select GENERIC_PCI_IOMAP
 38         select HAVE_ARCH_JUMP_LABEL
 39         select ARCH_WANT_IPC_PARSE_VERSION
 40         select IRQ_FORCED_THREADING
 41         select HAVE_MEMBLOCK
 42         select HAVE_MEMBLOCK_NODE_MAP
 43         select ARCH_DISCARD_MEMBLOCK
 44         select GENERIC_SMP_IDLE_THREAD
 45         select BUILDTIME_EXTABLE_SORT
 46         select GENERIC_CLOCKEVENTS
 47         select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC
 48         select GENERIC_CMOS_UPDATE
 49         select HAVE_MOD_ARCH_SPECIFIC
 50         select VIRT_TO_BUS
 51         select MODULES_USE_ELF_REL if MODULES
 52         select MODULES_USE_ELF_RELA if MODULES && 64BIT
 53         select CLONE_BACKWARDS
 54         select HAVE_DEBUG_STACKOVERFLOW
 55         select HAVE_CC_STACKPROTECTOR
 56         select CPU_PM if CPU_IDLE
 57         select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
 58         select ARCH_BINFMT_ELF_STATE
 59         select SYSCTL_EXCEPTION_TRACE
 60         select HAVE_VIRT_CPU_ACCOUNTING_GEN
 61         select HAVE_IRQ_TIME_ACCOUNTING
 62 
 63 menu "Machine selection"
 64 
 65 choice
 66         prompt "System type"
 67         default SGI_IP22
 68 
 69 config MIPS_ALCHEMY
 70         bool "Alchemy processor based machines"
 71         select ARCH_PHYS_ADDR_T_64BIT
 72         select CEVT_R4K
 73         select CSRC_R4K
 74         select IRQ_MIPS_CPU
 75         select DMA_MAYBE_COHERENT       # Au1000,1500,1100 aren't, rest is
 76         select SYS_HAS_CPU_MIPS32_R1
 77         select SYS_SUPPORTS_32BIT_KERNEL
 78         select SYS_SUPPORTS_APM_EMULATION
 79         select ARCH_REQUIRE_GPIOLIB
 80         select SYS_SUPPORTS_ZBOOT
 81         select COMMON_CLK
 82 
 83 config AR7
 84         bool "Texas Instruments AR7"
 85         select BOOT_ELF32
 86         select DMA_NONCOHERENT
 87         select CEVT_R4K
 88         select CSRC_R4K
 89         select IRQ_MIPS_CPU
 90         select NO_EXCEPT_FILL
 91         select SWAP_IO_SPACE
 92         select SYS_HAS_CPU_MIPS32_R1
 93         select SYS_HAS_EARLY_PRINTK
 94         select SYS_SUPPORTS_32BIT_KERNEL
 95         select SYS_SUPPORTS_LITTLE_ENDIAN
 96         select SYS_SUPPORTS_MIPS16
 97         select SYS_SUPPORTS_ZBOOT_UART16550
 98         select ARCH_REQUIRE_GPIOLIB
 99         select VLYNQ
100         select HAVE_CLK
101         help
102           Support for the Texas Instruments AR7 System-on-a-Chip
103           family: TNETD7100, 7200 and 7300.
104 
105 config ATH25
106         bool "Atheros AR231x/AR531x SoC support"
107         select CEVT_R4K
108         select CSRC_R4K
109         select DMA_NONCOHERENT
110         select IRQ_MIPS_CPU
111         select IRQ_DOMAIN
112         select SYS_HAS_CPU_MIPS32_R1
113         select SYS_SUPPORTS_BIG_ENDIAN
114         select SYS_SUPPORTS_32BIT_KERNEL
115         select SYS_HAS_EARLY_PRINTK
116         help
117           Support for Atheros AR231x and Atheros AR531x based boards
118 
119 config ATH79
120         bool "Atheros AR71XX/AR724X/AR913X based boards"
121         select ARCH_REQUIRE_GPIOLIB
122         select BOOT_RAW
123         select CEVT_R4K
124         select CSRC_R4K
125         select DMA_NONCOHERENT
126         select HAVE_CLK
127         select COMMON_CLK
128         select CLKDEV_LOOKUP
129         select IRQ_MIPS_CPU
130         select MIPS_MACHINE
131         select SYS_HAS_CPU_MIPS32_R2
132         select SYS_HAS_EARLY_PRINTK
133         select SYS_SUPPORTS_32BIT_KERNEL
134         select SYS_SUPPORTS_BIG_ENDIAN
135         select SYS_SUPPORTS_MIPS16
136         select SYS_SUPPORTS_ZBOOT
137         select USE_OF
138         help
139           Support for the Atheros AR71XX/AR724X/AR913X SoCs.
140 
141 config BMIPS_GENERIC
142         bool "Broadcom Generic BMIPS kernel"
143         select BOOT_RAW
144         select NO_EXCEPT_FILL
145         select USE_OF
146         select CEVT_R4K
147         select CSRC_R4K
148         select SYNC_R4K
149         select COMMON_CLK
150         select BCM7038_L1_IRQ
151         select BCM7120_L2_IRQ
152         select BRCMSTB_L2_IRQ
153         select IRQ_MIPS_CPU
154         select DMA_NONCOHERENT
155         select SYS_SUPPORTS_32BIT_KERNEL
156         select SYS_SUPPORTS_LITTLE_ENDIAN
157         select SYS_SUPPORTS_BIG_ENDIAN
158         select SYS_SUPPORTS_HIGHMEM
159         select SYS_HAS_CPU_BMIPS32_3300
160         select SYS_HAS_CPU_BMIPS4350
161         select SYS_HAS_CPU_BMIPS4380
162         select SYS_HAS_CPU_BMIPS5000
163         select SWAP_IO_SPACE
164         select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
165         select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
166         select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
167         select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
168         help
169           Build a generic DT-based kernel image that boots on select
170           BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top
171           box chips.  Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN
172           must be set appropriately for your board.
173 
174 config BCM47XX
175         bool "Broadcom BCM47XX based boards"
176         select ARCH_WANT_OPTIONAL_GPIOLIB
177         select BOOT_RAW
178         select CEVT_R4K
179         select CSRC_R4K
180         select DMA_NONCOHERENT
181         select HW_HAS_PCI
182         select IRQ_MIPS_CPU
183         select SYS_HAS_CPU_MIPS32_R1
184         select NO_EXCEPT_FILL
185         select SYS_SUPPORTS_32BIT_KERNEL
186         select SYS_SUPPORTS_LITTLE_ENDIAN
187         select SYS_SUPPORTS_MIPS16
188         select SYS_HAS_EARLY_PRINTK
189         select USE_GENERIC_EARLY_PRINTK_8250
190         select GPIOLIB
191         select LEDS_GPIO_REGISTER
192         select BCM47XX_NVRAM
193         help
194          Support for BCM47XX based boards
195 
196 config BCM63XX
197         bool "Broadcom BCM63XX based boards"
198         select BOOT_RAW
199         select CEVT_R4K
200         select CSRC_R4K
201         select SYNC_R4K
202         select DMA_NONCOHERENT
203         select IRQ_MIPS_CPU
204         select SYS_SUPPORTS_32BIT_KERNEL
205         select SYS_SUPPORTS_BIG_ENDIAN
206         select SYS_HAS_EARLY_PRINTK
207         select SWAP_IO_SPACE
208         select ARCH_REQUIRE_GPIOLIB
209         select HAVE_CLK
210         select MIPS_L1_CACHE_SHIFT_4
211         help
212          Support for BCM63XX based boards
213 
214 config MIPS_COBALT
215         bool "Cobalt Server"
216         select CEVT_R4K
217         select CSRC_R4K
218         select CEVT_GT641XX
219         select DMA_NONCOHERENT
220         select HW_HAS_PCI
221         select I8253
222         select I8259
223         select IRQ_MIPS_CPU
224         select IRQ_GT641XX
225         select PCI_GT64XXX_PCI0
226         select PCI
227         select SYS_HAS_CPU_NEVADA
228         select SYS_HAS_EARLY_PRINTK
229         select SYS_SUPPORTS_32BIT_KERNEL
230         select SYS_SUPPORTS_64BIT_KERNEL
231         select SYS_SUPPORTS_LITTLE_ENDIAN
232         select USE_GENERIC_EARLY_PRINTK_8250
233 
234 config MACH_DECSTATION
235         bool "DECstations"
236         select BOOT_ELF32
237         select CEVT_DS1287
238         select CEVT_R4K if CPU_R4X00
239         select CSRC_IOASIC
240         select CSRC_R4K if CPU_R4X00
241         select CPU_DADDI_WORKAROUNDS if 64BIT
242         select CPU_R4000_WORKAROUNDS if 64BIT
243         select CPU_R4400_WORKAROUNDS if 64BIT
244         select DMA_NONCOHERENT
245         select NO_IOPORT_MAP
246         select IRQ_MIPS_CPU
247         select SYS_HAS_CPU_R3000
248         select SYS_HAS_CPU_R4X00
249         select SYS_SUPPORTS_32BIT_KERNEL
250         select SYS_SUPPORTS_64BIT_KERNEL
251         select SYS_SUPPORTS_LITTLE_ENDIAN
252         select SYS_SUPPORTS_128HZ
253         select SYS_SUPPORTS_256HZ
254         select SYS_SUPPORTS_1024HZ
255         select MIPS_L1_CACHE_SHIFT_4
256         help
257           This enables support for DEC's MIPS based workstations.  For details
258           see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
259           DECstation porting pages on <http://decstation.unix-ag.org/>.
260 
261           If you have one of the following DECstation Models you definitely
262           want to choose R4xx0 for the CPU Type:
263 
264                 DECstation 5000/50
265                 DECstation 5000/150
266                 DECstation 5000/260
267                 DECsystem 5900/260
268 
269           otherwise choose R3000.
270 
271 config MACH_JAZZ
272         bool "Jazz family of machines"
273         select FW_ARC
274         select FW_ARC32
275         select ARCH_MAY_HAVE_PC_FDC
276         select CEVT_R4K
277         select CSRC_R4K
278         select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
279         select GENERIC_ISA_DMA
280         select HAVE_PCSPKR_PLATFORM
281         select IRQ_MIPS_CPU
282         select I8253
283         select I8259
284         select ISA
285         select SYS_HAS_CPU_R4X00
286         select SYS_SUPPORTS_32BIT_KERNEL
287         select SYS_SUPPORTS_64BIT_KERNEL
288         select SYS_SUPPORTS_100HZ
289         help
290          This a family of machines based on the MIPS R4030 chipset which was
291          used by several vendors to build RISC/os and Windows NT workstations.
292          Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
293          Olivetti M700-10 workstations.
294 
295 config MACH_INGENIC
296         bool "Ingenic SoC based machines"
297         select SYS_SUPPORTS_32BIT_KERNEL
298         select SYS_SUPPORTS_LITTLE_ENDIAN
299         select SYS_SUPPORTS_ZBOOT_UART16550
300         select DMA_NONCOHERENT
301         select IRQ_MIPS_CPU
302         select ARCH_REQUIRE_GPIOLIB
303         select COMMON_CLK
304         select GENERIC_IRQ_CHIP
305         select BUILTIN_DTB
306         select USE_OF
307         select LIBFDT
308 
309 config LANTIQ
310         bool "Lantiq based platforms"
311         select DMA_NONCOHERENT
312         select IRQ_MIPS_CPU
313         select CEVT_R4K
314         select CSRC_R4K
315         select SYS_HAS_CPU_MIPS32_R1
316         select SYS_HAS_CPU_MIPS32_R2
317         select SYS_SUPPORTS_BIG_ENDIAN
318         select SYS_SUPPORTS_32BIT_KERNEL
319         select SYS_SUPPORTS_MIPS16
320         select SYS_SUPPORTS_MULTITHREADING
321         select SYS_HAS_EARLY_PRINTK
322         select ARCH_REQUIRE_GPIOLIB
323         select SWAP_IO_SPACE
324         select BOOT_RAW
325         select HAVE_MACH_CLKDEV
326         select CLKDEV_LOOKUP
327         select USE_OF
328         select PINCTRL
329         select PINCTRL_LANTIQ
330         select ARCH_HAS_RESET_CONTROLLER
331         select RESET_CONTROLLER
332 
333 config LASAT
334         bool "LASAT Networks platforms"
335         select CEVT_R4K
336         select CRC32
337         select CSRC_R4K
338         select DMA_NONCOHERENT
339         select SYS_HAS_EARLY_PRINTK
340         select HW_HAS_PCI
341         select IRQ_MIPS_CPU
342         select PCI_GT64XXX_PCI0
343         select MIPS_NILE4
344         select R5000_CPU_SCACHE
345         select SYS_HAS_CPU_R5000
346         select SYS_SUPPORTS_32BIT_KERNEL
347         select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
348         select SYS_SUPPORTS_LITTLE_ENDIAN
349 
350 config MACH_LOONGSON32
351         bool "Loongson-1 family of machines"
352         select SYS_SUPPORTS_ZBOOT
353         help
354           This enables support for the Loongson-1 family of machines.
355 
356           Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by
357           the Institute of Computing Technology (ICT), Chinese Academy of
358           Sciences (CAS).
359 
360 config MACH_LOONGSON64
361         bool "Loongson-2/3 family of machines"
362         select SYS_SUPPORTS_ZBOOT
363         help
364           This enables the support of Loongson-2/3 family of machines.
365 
366           Loongson-2 is a family of single-core CPUs and Loongson-3 is a
367           family of multi-core CPUs. They are both 64-bit general-purpose
368           MIPS-compatible CPUs. Loongson-2/3 are developed by the Institute
369           of Computing Technology (ICT), Chinese Academy of Sciences (CAS)
370           in the People's Republic of China. The chief architect is Professor
371           Weiwu Hu.
372 
373 config MACH_PISTACHIO
374         bool "IMG Pistachio SoC based boards"
375         select ARCH_REQUIRE_GPIOLIB
376         select BOOT_ELF32
377         select BOOT_RAW
378         select CEVT_R4K
379         select CLKSRC_MIPS_GIC
380         select COMMON_CLK
381         select CSRC_R4K
382         select DMA_MAYBE_COHERENT
383         select IRQ_MIPS_CPU
384         select LIBFDT
385         select MFD_SYSCON
386         select MIPS_CPU_SCACHE
387         select MIPS_GIC
388         select PINCTRL
389         select REGULATOR
390         select SYS_HAS_CPU_MIPS32_R2
391         select SYS_SUPPORTS_32BIT_KERNEL
392         select SYS_SUPPORTS_LITTLE_ENDIAN
393         select SYS_SUPPORTS_MIPS_CPS
394         select SYS_SUPPORTS_MULTITHREADING
395         select SYS_SUPPORTS_ZBOOT
396         select SYS_HAS_EARLY_PRINTK
397         select USE_GENERIC_EARLY_PRINTK_8250
398         select USE_OF
399         help
400           This enables support for the IMG Pistachio SoC platform.
401 
402 config MIPS_MALTA
403         bool "MIPS Malta board"
404         select ARCH_MAY_HAVE_PC_FDC
405         select BOOT_ELF32
406         select BOOT_RAW
407         select BUILTIN_DTB
408         select CEVT_R4K
409         select CSRC_R4K
410         select CLKSRC_MIPS_GIC
411         select DMA_MAYBE_COHERENT
412         select GENERIC_ISA_DMA
413         select HAVE_PCSPKR_PLATFORM
414         select IRQ_MIPS_CPU
415         select MIPS_GIC
416         select HW_HAS_PCI
417         select I8253
418         select I8259
419         select MIPS_BONITO64
420         select MIPS_CPU_SCACHE
421         select MIPS_L1_CACHE_SHIFT_6
422         select PCI_GT64XXX_PCI0
423         select MIPS_MSC
424         select SWAP_IO_SPACE
425         select SYS_HAS_CPU_MIPS32_R1
426         select SYS_HAS_CPU_MIPS32_R2
427         select SYS_HAS_CPU_MIPS32_R3_5
428         select SYS_HAS_CPU_MIPS32_R5
429         select SYS_HAS_CPU_MIPS32_R6
430         select SYS_HAS_CPU_MIPS64_R1
431         select SYS_HAS_CPU_MIPS64_R2
432         select SYS_HAS_CPU_MIPS64_R6
433         select SYS_HAS_CPU_NEVADA
434         select SYS_HAS_CPU_RM7000
435         select SYS_SUPPORTS_32BIT_KERNEL
436         select SYS_SUPPORTS_64BIT_KERNEL
437         select SYS_SUPPORTS_BIG_ENDIAN
438         select SYS_SUPPORTS_HIGHMEM
439         select SYS_SUPPORTS_LITTLE_ENDIAN
440         select SYS_SUPPORTS_MICROMIPS
441         select SYS_SUPPORTS_MIPS_CMP
442         select SYS_SUPPORTS_MIPS_CPS
443         select SYS_SUPPORTS_MIPS16
444         select SYS_SUPPORTS_MULTITHREADING
445         select SYS_SUPPORTS_SMARTMIPS
446         select SYS_SUPPORTS_ZBOOT
447         select USE_OF
448         select ZONE_DMA32 if 64BIT
449         help
450           This enables support for the MIPS Technologies Malta evaluation
451           board.
452 
453 config MIPS_SEAD3
454         bool "MIPS SEAD3 board"
455         select BOOT_ELF32
456         select BOOT_RAW
457         select BUILTIN_DTB
458         select CEVT_R4K
459         select CSRC_R4K
460         select CLKSRC_MIPS_GIC
461         select CPU_MIPSR2_IRQ_VI
462         select CPU_MIPSR2_IRQ_EI
463         select DMA_NONCOHERENT
464         select IRQ_MIPS_CPU
465         select MIPS_GIC
466         select LIBFDT
467         select MIPS_MSC
468         select SYS_HAS_CPU_MIPS32_R1
469         select SYS_HAS_CPU_MIPS32_R2
470         select SYS_HAS_CPU_MIPS64_R1
471         select SYS_HAS_EARLY_PRINTK
472         select SYS_SUPPORTS_32BIT_KERNEL
473         select SYS_SUPPORTS_64BIT_KERNEL
474         select SYS_SUPPORTS_BIG_ENDIAN
475         select SYS_SUPPORTS_LITTLE_ENDIAN
476         select SYS_SUPPORTS_SMARTMIPS
477         select SYS_SUPPORTS_MICROMIPS
478         select SYS_SUPPORTS_MIPS16
479         select USB_EHCI_BIG_ENDIAN_DESC
480         select USB_EHCI_BIG_ENDIAN_MMIO
481         select USE_OF
482         help
483           This enables support for the MIPS Technologies SEAD3 evaluation
484           board.
485 
486 config NEC_MARKEINS
487         bool "NEC EMMA2RH Mark-eins board"
488         select SOC_EMMA2RH
489         select HW_HAS_PCI
490         help
491           This enables support for the NEC Electronics Mark-eins boards.
492 
493 config MACH_VR41XX
494         bool "NEC VR4100 series based machines"
495         select CEVT_R4K
496         select CSRC_R4K
497         select SYS_HAS_CPU_VR41XX
498         select SYS_SUPPORTS_MIPS16
499         select ARCH_REQUIRE_GPIOLIB
500 
501 config NXP_STB220
502         bool "NXP STB220 board"
503         select SOC_PNX833X
504         help
505          Support for NXP Semiconductors STB220 Development Board.
506 
507 config NXP_STB225
508         bool "NXP 225 board"
509         select SOC_PNX833X
510         select SOC_PNX8335
511         help
512          Support for NXP Semiconductors STB225 Development Board.
513 
514 config PMC_MSP
515         bool "PMC-Sierra MSP chipsets"
516         select CEVT_R4K
517         select CSRC_R4K
518         select DMA_NONCOHERENT
519         select SWAP_IO_SPACE
520         select NO_EXCEPT_FILL
521         select BOOT_RAW
522         select SYS_HAS_CPU_MIPS32_R1
523         select SYS_HAS_CPU_MIPS32_R2
524         select SYS_SUPPORTS_32BIT_KERNEL
525         select SYS_SUPPORTS_BIG_ENDIAN
526         select SYS_SUPPORTS_MIPS16
527         select IRQ_MIPS_CPU
528         select SERIAL_8250
529         select SERIAL_8250_CONSOLE
530         select USB_EHCI_BIG_ENDIAN_MMIO
531         select USB_EHCI_BIG_ENDIAN_DESC
532         help
533           This adds support for the PMC-Sierra family of Multi-Service
534           Processor System-On-A-Chips.  These parts include a number
535           of integrated peripherals, interfaces and DSPs in addition to
536           a variety of MIPS cores.
537 
538 config RALINK
539         bool "Ralink based machines"
540         select CEVT_R4K
541         select CSRC_R4K
542         select BOOT_RAW
543         select DMA_NONCOHERENT
544         select IRQ_MIPS_CPU
545         select USE_OF
546         select SYS_HAS_CPU_MIPS32_R1
547         select SYS_HAS_CPU_MIPS32_R2
548         select SYS_SUPPORTS_32BIT_KERNEL
549         select SYS_SUPPORTS_LITTLE_ENDIAN
550         select SYS_SUPPORTS_MIPS16
551         select SYS_HAS_EARLY_PRINTK
552         select HAVE_MACH_CLKDEV
553         select CLKDEV_LOOKUP
554         select ARCH_HAS_RESET_CONTROLLER
555         select RESET_CONTROLLER
556 
557 config SGI_IP22
558         bool "SGI IP22 (Indy/Indigo2)"
559         select FW_ARC
560         select FW_ARC32
561         select BOOT_ELF32
562         select CEVT_R4K
563         select CSRC_R4K
564         select DEFAULT_SGI_PARTITION
565         select DMA_NONCOHERENT
566         select HW_HAS_EISA
567         select I8253
568         select I8259
569         select IP22_CPU_SCACHE
570         select IRQ_MIPS_CPU
571         select GENERIC_ISA_DMA_SUPPORT_BROKEN
572         select SGI_HAS_I8042
573         select SGI_HAS_INDYDOG
574         select SGI_HAS_HAL2
575         select SGI_HAS_SEEQ
576         select SGI_HAS_WD93
577         select SGI_HAS_ZILOG
578         select SWAP_IO_SPACE
579         select SYS_HAS_CPU_R4X00
580         select SYS_HAS_CPU_R5000
581         #
582         # Disable EARLY_PRINTK for now since it leads to overwritten prom
583         # memory during early boot on some machines.
584         #
585         # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
586         # for a more details discussion
587         #
588         # select SYS_HAS_EARLY_PRINTK
589         select SYS_SUPPORTS_32BIT_KERNEL
590         select SYS_SUPPORTS_64BIT_KERNEL
591         select SYS_SUPPORTS_BIG_ENDIAN
592         select MIPS_L1_CACHE_SHIFT_7
593         help
594           This are the SGI Indy, Challenge S and Indigo2, as well as certain
595           OEM variants like the Tandem CMN B006S. To compile a Linux kernel
596           that runs on these, say Y here.
597 
598 config SGI_IP27
599         bool "SGI IP27 (Origin200/2000)"
600         select FW_ARC
601         select FW_ARC64
602         select BOOT_ELF64
603         select DEFAULT_SGI_PARTITION
604         select DMA_COHERENT
605         select SYS_HAS_EARLY_PRINTK
606         select HW_HAS_PCI
607         select NR_CPUS_DEFAULT_64
608         select SYS_HAS_CPU_R10000
609         select SYS_SUPPORTS_64BIT_KERNEL
610         select SYS_SUPPORTS_BIG_ENDIAN
611         select SYS_SUPPORTS_NUMA
612         select SYS_SUPPORTS_SMP
613         select MIPS_L1_CACHE_SHIFT_7
614         help
615           This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
616           workstations.  To compile a Linux kernel that runs on these, say Y
617           here.
618 
619 config SGI_IP28
620         bool "SGI IP28 (Indigo2 R10k)"
621         select FW_ARC
622         select FW_ARC64
623         select BOOT_ELF64
624         select CEVT_R4K
625         select CSRC_R4K
626         select DEFAULT_SGI_PARTITION
627         select DMA_NONCOHERENT
628         select GENERIC_ISA_DMA_SUPPORT_BROKEN
629         select IRQ_MIPS_CPU
630         select HW_HAS_EISA
631         select I8253
632         select I8259
633         select SGI_HAS_I8042
634         select SGI_HAS_INDYDOG
635         select SGI_HAS_HAL2
636         select SGI_HAS_SEEQ
637         select SGI_HAS_WD93
638         select SGI_HAS_ZILOG
639         select SWAP_IO_SPACE
640         select SYS_HAS_CPU_R10000
641         #
642         # Disable EARLY_PRINTK for now since it leads to overwritten prom
643         # memory during early boot on some machines.
644         #
645         # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
646         # for a more details discussion
647         #
648         # select SYS_HAS_EARLY_PRINTK
649         select SYS_SUPPORTS_64BIT_KERNEL
650         select SYS_SUPPORTS_BIG_ENDIAN
651         select MIPS_L1_CACHE_SHIFT_7
652       help
653         This is the SGI Indigo2 with R10000 processor.  To compile a Linux
654         kernel that runs on these, say Y here.
655 
656 config SGI_IP32
657         bool "SGI IP32 (O2)"
658         select FW_ARC
659         select FW_ARC32
660         select BOOT_ELF32
661         select CEVT_R4K
662         select CSRC_R4K
663         select DMA_NONCOHERENT
664         select HW_HAS_PCI
665         select IRQ_MIPS_CPU
666         select R5000_CPU_SCACHE
667         select RM7000_CPU_SCACHE
668         select SYS_HAS_CPU_R5000
669         select SYS_HAS_CPU_R10000 if BROKEN
670         select SYS_HAS_CPU_RM7000
671         select SYS_HAS_CPU_NEVADA
672         select SYS_SUPPORTS_64BIT_KERNEL
673         select SYS_SUPPORTS_BIG_ENDIAN
674         help
675           If you want this kernel to run on SGI O2 workstation, say Y here.
676 
677 config SIBYTE_CRHINE
678         bool "Sibyte BCM91120C-CRhine"
679         select BOOT_ELF32
680         select DMA_COHERENT
681         select SIBYTE_BCM1120
682         select SWAP_IO_SPACE
683         select SYS_HAS_CPU_SB1
684         select SYS_SUPPORTS_BIG_ENDIAN
685         select SYS_SUPPORTS_LITTLE_ENDIAN
686 
687 config SIBYTE_CARMEL
688         bool "Sibyte BCM91120x-Carmel"
689         select BOOT_ELF32
690         select DMA_COHERENT
691         select SIBYTE_BCM1120
692         select SWAP_IO_SPACE
693         select SYS_HAS_CPU_SB1
694         select SYS_SUPPORTS_BIG_ENDIAN
695         select SYS_SUPPORTS_LITTLE_ENDIAN
696 
697 config SIBYTE_CRHONE
698         bool "Sibyte BCM91125C-CRhone"
699         select BOOT_ELF32
700         select DMA_COHERENT
701         select SIBYTE_BCM1125
702         select SWAP_IO_SPACE
703         select SYS_HAS_CPU_SB1
704         select SYS_SUPPORTS_BIG_ENDIAN
705         select SYS_SUPPORTS_HIGHMEM
706         select SYS_SUPPORTS_LITTLE_ENDIAN
707 
708 config SIBYTE_RHONE
709         bool "Sibyte BCM91125E-Rhone"
710         select BOOT_ELF32
711         select DMA_COHERENT
712         select SIBYTE_BCM1125H
713         select SWAP_IO_SPACE
714         select SYS_HAS_CPU_SB1
715         select SYS_SUPPORTS_BIG_ENDIAN
716         select SYS_SUPPORTS_LITTLE_ENDIAN
717 
718 config SIBYTE_SWARM
719         bool "Sibyte BCM91250A-SWARM"
720         select BOOT_ELF32
721         select DMA_COHERENT
722         select HAVE_PATA_PLATFORM
723         select SIBYTE_SB1250
724         select SWAP_IO_SPACE
725         select SYS_HAS_CPU_SB1
726         select SYS_SUPPORTS_BIG_ENDIAN
727         select SYS_SUPPORTS_HIGHMEM
728         select SYS_SUPPORTS_LITTLE_ENDIAN
729         select ZONE_DMA32 if 64BIT
730 
731 config SIBYTE_LITTLESUR
732         bool "Sibyte BCM91250C2-LittleSur"
733         select BOOT_ELF32
734         select DMA_COHERENT
735         select HAVE_PATA_PLATFORM
736         select SIBYTE_SB1250
737         select SWAP_IO_SPACE
738         select SYS_HAS_CPU_SB1
739         select SYS_SUPPORTS_BIG_ENDIAN
740         select SYS_SUPPORTS_HIGHMEM
741         select SYS_SUPPORTS_LITTLE_ENDIAN
742 
743 config SIBYTE_SENTOSA
744         bool "Sibyte BCM91250E-Sentosa"
745         select BOOT_ELF32
746         select DMA_COHERENT
747         select SIBYTE_SB1250
748         select SWAP_IO_SPACE
749         select SYS_HAS_CPU_SB1
750         select SYS_SUPPORTS_BIG_ENDIAN
751         select SYS_SUPPORTS_LITTLE_ENDIAN
752 
753 config SIBYTE_BIGSUR
754         bool "Sibyte BCM91480B-BigSur"
755         select BOOT_ELF32
756         select DMA_COHERENT
757         select NR_CPUS_DEFAULT_4
758         select SIBYTE_BCM1x80
759         select SWAP_IO_SPACE
760         select SYS_HAS_CPU_SB1
761         select SYS_SUPPORTS_BIG_ENDIAN
762         select SYS_SUPPORTS_HIGHMEM
763         select SYS_SUPPORTS_LITTLE_ENDIAN
764         select ZONE_DMA32 if 64BIT
765 
766 config SNI_RM
767         bool "SNI RM200/300/400"
768         select FW_ARC if CPU_LITTLE_ENDIAN
769         select FW_ARC32 if CPU_LITTLE_ENDIAN
770         select FW_SNIPROM if CPU_BIG_ENDIAN
771         select ARCH_MAY_HAVE_PC_FDC
772         select BOOT_ELF32
773         select CEVT_R4K
774         select CSRC_R4K
775         select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
776         select DMA_NONCOHERENT
777         select GENERIC_ISA_DMA
778         select HAVE_PCSPKR_PLATFORM
779         select HW_HAS_EISA
780         select HW_HAS_PCI
781         select IRQ_MIPS_CPU
782         select I8253
783         select I8259
784         select ISA
785         select SWAP_IO_SPACE if CPU_BIG_ENDIAN
786         select SYS_HAS_CPU_R4X00
787         select SYS_HAS_CPU_R5000
788         select SYS_HAS_CPU_R10000
789         select R5000_CPU_SCACHE
790         select SYS_HAS_EARLY_PRINTK
791         select SYS_SUPPORTS_32BIT_KERNEL
792         select SYS_SUPPORTS_64BIT_KERNEL
793         select SYS_SUPPORTS_BIG_ENDIAN
794         select SYS_SUPPORTS_HIGHMEM
795         select SYS_SUPPORTS_LITTLE_ENDIAN
796         help
797           The SNI RM200/300/400 are MIPS-based machines manufactured by
798           Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
799           Technology and now in turn merged with Fujitsu.  Say Y here to
800           support this machine type.
801 
802 config MACH_TX39XX
803         bool "Toshiba TX39 series based machines"
804 
805 config MACH_TX49XX
806         bool "Toshiba TX49 series based machines"
807 
808 config MIKROTIK_RB532
809         bool "Mikrotik RB532 boards"
810         select CEVT_R4K
811         select CSRC_R4K
812         select DMA_NONCOHERENT
813         select HW_HAS_PCI
814         select IRQ_MIPS_CPU
815         select SYS_HAS_CPU_MIPS32_R1
816         select SYS_SUPPORTS_32BIT_KERNEL
817         select SYS_SUPPORTS_LITTLE_ENDIAN
818         select SWAP_IO_SPACE
819         select BOOT_RAW
820         select ARCH_REQUIRE_GPIOLIB
821         select MIPS_L1_CACHE_SHIFT_4
822         help
823           Support the Mikrotik(tm) RouterBoard 532 series,
824           based on the IDT RC32434 SoC.
825 
826 config CAVIUM_OCTEON_SOC
827         bool "Cavium Networks Octeon SoC based boards"
828         select CEVT_R4K
829         select ARCH_PHYS_ADDR_T_64BIT
830         select DMA_COHERENT
831         select SYS_SUPPORTS_64BIT_KERNEL
832         select SYS_SUPPORTS_BIG_ENDIAN
833         select EDAC_SUPPORT
834         select EDAC_ATOMIC_SCRUB
835         select SYS_SUPPORTS_LITTLE_ENDIAN
836         select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
837         select SYS_HAS_EARLY_PRINTK
838         select SYS_HAS_CPU_CAVIUM_OCTEON
839         select SWAP_IO_SPACE
840         select HW_HAS_PCI
841         select ZONE_DMA32
842         select HOLES_IN_ZONE
843         select ARCH_REQUIRE_GPIOLIB
844         select LIBFDT
845         select USE_OF
846         select ARCH_SPARSEMEM_ENABLE
847         select SYS_SUPPORTS_SMP
848         select NR_CPUS_DEFAULT_16
849         select BUILTIN_DTB
850         select MTD_COMPLEX_MAPPINGS
851         help
852           This option supports all of the Octeon reference boards from Cavium
853           Networks. It builds a kernel that dynamically determines the Octeon
854           CPU type and supports all known board reference implementations.
855           Some of the supported boards are:
856                 EBT3000
857                 EBH3000
858                 EBH3100
859                 Thunder
860                 Kodama
861                 Hikari
862           Say Y here for most Octeon reference boards.
863 
864 config NLM_XLR_BOARD
865         bool "Netlogic XLR/XLS based systems"
866         select BOOT_ELF32
867         select NLM_COMMON
868         select SYS_HAS_CPU_XLR
869         select SYS_SUPPORTS_SMP
870         select HW_HAS_PCI
871         select SWAP_IO_SPACE
872         select SYS_SUPPORTS_32BIT_KERNEL
873         select SYS_SUPPORTS_64BIT_KERNEL
874         select ARCH_PHYS_ADDR_T_64BIT
875         select SYS_SUPPORTS_BIG_ENDIAN
876         select SYS_SUPPORTS_HIGHMEM
877         select DMA_COHERENT
878         select NR_CPUS_DEFAULT_32
879         select CEVT_R4K
880         select CSRC_R4K
881         select IRQ_MIPS_CPU
882         select ZONE_DMA32 if 64BIT
883         select SYNC_R4K
884         select SYS_HAS_EARLY_PRINTK
885         select SYS_SUPPORTS_ZBOOT
886         select SYS_SUPPORTS_ZBOOT_UART16550
887         help
888           Support for systems based on Netlogic XLR and XLS processors.
889           Say Y here if you have a XLR or XLS based board.
890 
891 config NLM_XLP_BOARD
892         bool "Netlogic XLP based systems"
893         select BOOT_ELF32
894         select NLM_COMMON
895         select SYS_HAS_CPU_XLP
896         select SYS_SUPPORTS_SMP
897         select HW_HAS_PCI
898         select SYS_SUPPORTS_32BIT_KERNEL
899         select SYS_SUPPORTS_64BIT_KERNEL
900         select ARCH_PHYS_ADDR_T_64BIT
901         select SYS_SUPPORTS_BIG_ENDIAN
902         select SYS_SUPPORTS_LITTLE_ENDIAN
903         select SYS_SUPPORTS_HIGHMEM
904         select DMA_COHERENT
905         select NR_CPUS_DEFAULT_32
906         select CEVT_R4K
907         select CSRC_R4K
908         select IRQ_MIPS_CPU
909         select ZONE_DMA32 if 64BIT
910         select SYNC_R4K
911         select SYS_HAS_EARLY_PRINTK
912         select USE_OF
913         select SYS_SUPPORTS_ZBOOT
914         select SYS_SUPPORTS_ZBOOT_UART16550
915         help
916           This board is based on Netlogic XLP Processor.
917           Say Y here if you have a XLP based board.
918 
919 config MIPS_PARAVIRT
920         bool "Para-Virtualized guest system"
921         select CEVT_R4K
922         select CSRC_R4K
923         select DMA_COHERENT
924         select SYS_SUPPORTS_64BIT_KERNEL
925         select SYS_SUPPORTS_32BIT_KERNEL
926         select SYS_SUPPORTS_BIG_ENDIAN
927         select SYS_SUPPORTS_SMP
928         select NR_CPUS_DEFAULT_4
929         select SYS_HAS_EARLY_PRINTK
930         select SYS_HAS_CPU_MIPS32_R2
931         select SYS_HAS_CPU_MIPS64_R2
932         select SYS_HAS_CPU_CAVIUM_OCTEON
933         select HW_HAS_PCI
934         select SWAP_IO_SPACE
935         help
936           This option supports guest running under ????
937 
938 endchoice
939 
940 source "arch/mips/alchemy/Kconfig"
941 source "arch/mips/ath25/Kconfig"
942 source "arch/mips/ath79/Kconfig"
943 source "arch/mips/bcm47xx/Kconfig"
944 source "arch/mips/bcm63xx/Kconfig"
945 source "arch/mips/bmips/Kconfig"
946 source "arch/mips/jazz/Kconfig"
947 source "arch/mips/jz4740/Kconfig"
948 source "arch/mips/lantiq/Kconfig"
949 source "arch/mips/lasat/Kconfig"
950 source "arch/mips/pmcs-msp71xx/Kconfig"
951 source "arch/mips/ralink/Kconfig"
952 source "arch/mips/sgi-ip27/Kconfig"
953 source "arch/mips/sibyte/Kconfig"
954 source "arch/mips/txx9/Kconfig"
955 source "arch/mips/vr41xx/Kconfig"
956 source "arch/mips/cavium-octeon/Kconfig"
957 source "arch/mips/loongson32/Kconfig"
958 source "arch/mips/loongson64/Kconfig"
959 source "arch/mips/netlogic/Kconfig"
960 source "arch/mips/paravirt/Kconfig"
961 
962 endmenu
963 
964 config RWSEM_GENERIC_SPINLOCK
965         bool
966         default y
967 
968 config RWSEM_XCHGADD_ALGORITHM
969         bool
970 
971 config ARCH_HAS_ILOG2_U32
972         bool
973         default n
974 
975 config ARCH_HAS_ILOG2_U64
976         bool
977         default n
978 
979 config GENERIC_HWEIGHT
980         bool
981         default y
982 
983 config GENERIC_CALIBRATE_DELAY
984         bool
985         default y
986 
987 config SCHED_OMIT_FRAME_POINTER
988         bool
989         default y
990 
991 #
992 # Select some configuration options automatically based on user selections.
993 #
994 config FW_ARC
995         bool
996 
997 config ARCH_MAY_HAVE_PC_FDC
998         bool
999 
1000 config BOOT_RAW
1001         bool
1002 
1003 config CEVT_BCM1480
1004         bool
1005 
1006 config CEVT_DS1287
1007         bool
1008 
1009 config CEVT_GT641XX
1010         bool
1011 
1012 config CEVT_R4K
1013         bool
1014 
1015 config CEVT_SB1250
1016         bool
1017 
1018 config CEVT_TXX9
1019         bool
1020 
1021 config CSRC_BCM1480
1022         bool
1023 
1024 config CSRC_IOASIC
1025         bool
1026 
1027 config CSRC_R4K
1028         bool
1029 
1030 config CSRC_SB1250
1031         bool
1032 
1033 config GPIO_TXX9
1034         select ARCH_REQUIRE_GPIOLIB
1035         bool
1036 
1037 config FW_CFE
1038         bool
1039 
1040 config ARCH_DMA_ADDR_T_64BIT
1041         def_bool (HIGHMEM && ARCH_PHYS_ADDR_T_64BIT) || 64BIT
1042 
1043 config DMA_MAYBE_COHERENT
1044         select DMA_NONCOHERENT
1045         bool
1046 
1047 config DMA_COHERENT
1048         bool
1049 
1050 config DMA_NONCOHERENT
1051         bool
1052         select NEED_DMA_MAP_STATE
1053 
1054 config NEED_DMA_MAP_STATE
1055         bool
1056 
1057 config SYS_HAS_EARLY_PRINTK
1058         bool
1059 
1060 config HOTPLUG_CPU
1061         bool "Support for hot-pluggable CPUs"
1062         depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
1063         help
1064           Say Y here to allow turning CPUs off and on. CPUs can be
1065           controlled through /sys/devices/system/cpu.
1066           (Note: power management support will enable this option
1067             automatically on SMP systems. )
1068           Say N if you want to disable CPU hotplug.
1069 
1070 config SYS_SUPPORTS_HOTPLUG_CPU
1071         bool
1072 
1073 config I8259
1074         bool
1075         select IRQ_DOMAIN
1076 
1077 config MIPS_BONITO64
1078         bool
1079 
1080 config MIPS_MSC
1081         bool
1082 
1083 config MIPS_NILE4
1084         bool
1085 
1086 config SYNC_R4K
1087         bool
1088 
1089 config MIPS_MACHINE
1090         def_bool n
1091 
1092 config NO_IOPORT_MAP
1093         def_bool n
1094 
1095 config GENERIC_CSUM
1096         bool
1097 
1098 config GENERIC_ISA_DMA
1099         bool
1100         select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1101         select ISA_DMA_API
1102 
1103 config GENERIC_ISA_DMA_SUPPORT_BROKEN
1104         bool
1105         select GENERIC_ISA_DMA
1106 
1107 config ISA_DMA_API
1108         bool
1109 
1110 config HOLES_IN_ZONE
1111         bool
1112 
1113 #
1114 # Endianness selection.  Sufficiently obscure so many users don't know what to
1115 # answer,so we try hard to limit the available choices.  Also the use of a
1116 # choice statement should be more obvious to the user.
1117 #
1118 choice
1119         prompt "Endianness selection"
1120         help
1121           Some MIPS machines can be configured for either little or big endian
1122           byte order. These modes require different kernels and a different
1123           Linux distribution.  In general there is one preferred byteorder for a
1124           particular system but some systems are just as commonly used in the
1125           one or the other endianness.
1126 
1127 config CPU_BIG_ENDIAN
1128         bool "Big endian"
1129         depends on SYS_SUPPORTS_BIG_ENDIAN
1130 
1131 config CPU_LITTLE_ENDIAN
1132         bool "Little endian"
1133         depends on SYS_SUPPORTS_LITTLE_ENDIAN
1134 
1135 endchoice
1136 
1137 config EXPORT_UASM
1138         bool
1139 
1140 config SYS_SUPPORTS_APM_EMULATION
1141         bool
1142 
1143 config SYS_SUPPORTS_BIG_ENDIAN
1144         bool
1145 
1146 config SYS_SUPPORTS_LITTLE_ENDIAN
1147         bool
1148 
1149 config SYS_SUPPORTS_HUGETLBFS
1150         bool
1151         depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1152         default y
1153 
1154 config MIPS_HUGE_TLB_SUPPORT
1155         def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1156 
1157 config IRQ_CPU_RM7K
1158         bool
1159 
1160 config IRQ_MSP_SLP
1161         bool
1162 
1163 config IRQ_MSP_CIC
1164         bool
1165 
1166 config IRQ_TXX9
1167         bool
1168 
1169 config IRQ_GT641XX
1170         bool
1171 
1172 config PCI_GT64XXX_PCI0
1173         bool
1174 
1175 config NO_EXCEPT_FILL
1176         bool
1177 
1178 config SOC_EMMA2RH
1179         bool
1180         select CEVT_R4K
1181         select CSRC_R4K
1182         select DMA_NONCOHERENT
1183         select IRQ_MIPS_CPU
1184         select SWAP_IO_SPACE
1185         select SYS_HAS_CPU_R5500
1186         select SYS_SUPPORTS_32BIT_KERNEL
1187         select SYS_SUPPORTS_64BIT_KERNEL
1188         select SYS_SUPPORTS_BIG_ENDIAN
1189 
1190 config SOC_PNX833X
1191         bool
1192         select CEVT_R4K
1193         select CSRC_R4K
1194         select IRQ_MIPS_CPU
1195         select DMA_NONCOHERENT
1196         select SYS_HAS_CPU_MIPS32_R2
1197         select SYS_SUPPORTS_32BIT_KERNEL
1198         select SYS_SUPPORTS_LITTLE_ENDIAN
1199         select SYS_SUPPORTS_BIG_ENDIAN
1200         select SYS_SUPPORTS_MIPS16
1201         select CPU_MIPSR2_IRQ_VI
1202 
1203 config SOC_PNX8335
1204         bool
1205         select SOC_PNX833X
1206 
1207 config MIPS_SPRAM
1208         bool
1209 
1210 config SWAP_IO_SPACE
1211         bool
1212 
1213 config SGI_HAS_INDYDOG
1214         bool
1215 
1216 config SGI_HAS_HAL2
1217         bool
1218 
1219 config SGI_HAS_SEEQ
1220         bool
1221 
1222 config SGI_HAS_WD93
1223         bool
1224 
1225 config SGI_HAS_ZILOG
1226         bool
1227 
1228 config SGI_HAS_I8042
1229         bool
1230 
1231 config DEFAULT_SGI_PARTITION
1232         bool
1233 
1234 config FW_ARC32
1235         bool
1236 
1237 config FW_SNIPROM
1238         bool
1239 
1240 config BOOT_ELF32
1241         bool
1242 
1243 config MIPS_L1_CACHE_SHIFT_4
1244         bool
1245 
1246 config MIPS_L1_CACHE_SHIFT_5
1247         bool
1248 
1249 config MIPS_L1_CACHE_SHIFT_6
1250         bool
1251 
1252 config MIPS_L1_CACHE_SHIFT_7
1253         bool
1254 
1255 config MIPS_L1_CACHE_SHIFT
1256         int
1257         default "7" if MIPS_L1_CACHE_SHIFT_7
1258         default "6" if MIPS_L1_CACHE_SHIFT_6
1259         default "5" if MIPS_L1_CACHE_SHIFT_5
1260         default "4" if MIPS_L1_CACHE_SHIFT_4
1261         default "5"
1262 
1263 config HAVE_STD_PC_SERIAL_PORT
1264         bool
1265 
1266 config ARC_CONSOLE
1267         bool "ARC console support"
1268         depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1269 
1270 config ARC_MEMORY
1271         bool
1272         depends on MACH_JAZZ || SNI_RM || SGI_IP32
1273         default y
1274 
1275 config ARC_PROMLIB
1276         bool
1277         depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1278         default y
1279 
1280 config FW_ARC64
1281         bool
1282 
1283 config BOOT_ELF64
1284         bool
1285 
1286 menu "CPU selection"
1287 
1288 choice
1289         prompt "CPU type"
1290         default CPU_R4X00
1291 
1292 config CPU_LOONGSON3
1293         bool "Loongson 3 CPU"
1294         depends on SYS_HAS_CPU_LOONGSON3
1295         select CPU_SUPPORTS_64BIT_KERNEL
1296         select CPU_SUPPORTS_HIGHMEM
1297         select CPU_SUPPORTS_HUGEPAGES
1298         select WEAK_ORDERING
1299         select WEAK_REORDERING_BEYOND_LLSC
1300         select ARCH_REQUIRE_GPIOLIB
1301         help
1302                 The Loongson 3 processor implements the MIPS64R2 instruction
1303                 set with many extensions.
1304 
1305 config CPU_LOONGSON2E
1306         bool "Loongson 2E"
1307         depends on SYS_HAS_CPU_LOONGSON2E
1308         select CPU_LOONGSON2
1309         help
1310           The Loongson 2E processor implements the MIPS III instruction set
1311           with many extensions.
1312 
1313           It has an internal FPGA northbridge, which is compatible to
1314           bonito64.
1315 
1316 config CPU_LOONGSON2F
1317         bool "Loongson 2F"
1318         depends on SYS_HAS_CPU_LOONGSON2F
1319         select CPU_LOONGSON2
1320         select ARCH_REQUIRE_GPIOLIB
1321         help
1322           The Loongson 2F processor implements the MIPS III instruction set
1323           with many extensions.
1324 
1325           Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1326           have a similar programming interface with FPGA northbridge used in
1327           Loongson2E.
1328 
1329 config CPU_LOONGSON1B
1330         bool "Loongson 1B"
1331         depends on SYS_HAS_CPU_LOONGSON1B
1332         select CPU_LOONGSON1
1333         help
1334           The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1335           release 2 instruction set.
1336 
1337 config CPU_MIPS32_R1
1338         bool "MIPS32 Release 1"
1339         depends on SYS_HAS_CPU_MIPS32_R1
1340         select CPU_HAS_PREFETCH
1341         select CPU_SUPPORTS_32BIT_KERNEL
1342         select CPU_SUPPORTS_HIGHMEM
1343         help
1344           Choose this option to build a kernel for release 1 or later of the
1345           MIPS32 architecture.  Most modern embedded systems with a 32-bit
1346           MIPS processor are based on a MIPS32 processor.  If you know the
1347           specific type of processor in your system, choose those that one
1348           otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1349           Release 2 of the MIPS32 architecture is available since several
1350           years so chances are you even have a MIPS32 Release 2 processor
1351           in which case you should choose CPU_MIPS32_R2 instead for better
1352           performance.
1353 
1354 config CPU_MIPS32_R2
1355         bool "MIPS32 Release 2"
1356         depends on SYS_HAS_CPU_MIPS32_R2
1357         select CPU_HAS_PREFETCH
1358         select CPU_SUPPORTS_32BIT_KERNEL
1359         select CPU_SUPPORTS_HIGHMEM
1360         select CPU_SUPPORTS_MSA
1361         select HAVE_KVM
1362         help
1363           Choose this option to build a kernel for release 2 or later of the
1364           MIPS32 architecture.  Most modern embedded systems with a 32-bit
1365           MIPS processor are based on a MIPS32 processor.  If you know the
1366           specific type of processor in your system, choose those that one
1367           otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1368 
1369 config CPU_MIPS32_R6
1370         bool "MIPS32 Release 6 (EXPERIMENTAL)"
1371         depends on SYS_HAS_CPU_MIPS32_R6
1372         select CPU_HAS_PREFETCH
1373         select CPU_SUPPORTS_32BIT_KERNEL
1374         select CPU_SUPPORTS_HIGHMEM
1375         select CPU_SUPPORTS_MSA
1376         select GENERIC_CSUM
1377         select HAVE_KVM
1378         select MIPS_O32_FP64_SUPPORT
1379         help
1380           Choose this option to build a kernel for release 6 or later of the
1381           MIPS32 architecture.  New MIPS processors, starting with the Warrior
1382           family, are based on a MIPS32r6 processor. If you own an older
1383           processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1384 
1385 config CPU_MIPS64_R1
1386         bool "MIPS64 Release 1"
1387         depends on SYS_HAS_CPU_MIPS64_R1
1388         select CPU_HAS_PREFETCH
1389         select CPU_SUPPORTS_32BIT_KERNEL
1390         select CPU_SUPPORTS_64BIT_KERNEL
1391         select CPU_SUPPORTS_HIGHMEM
1392         select CPU_SUPPORTS_HUGEPAGES
1393         help
1394           Choose this option to build a kernel for release 1 or later of the
1395           MIPS64 architecture.  Many modern embedded systems with a 64-bit
1396           MIPS processor are based on a MIPS64 processor.  If you know the
1397           specific type of processor in your system, choose those that one
1398           otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1399           Release 2 of the MIPS64 architecture is available since several
1400           years so chances are you even have a MIPS64 Release 2 processor
1401           in which case you should choose CPU_MIPS64_R2 instead for better
1402           performance.
1403 
1404 config CPU_MIPS64_R2
1405         bool "MIPS64 Release 2"
1406         depends on SYS_HAS_CPU_MIPS64_R2
1407         select CPU_HAS_PREFETCH
1408         select CPU_SUPPORTS_32BIT_KERNEL
1409         select CPU_SUPPORTS_64BIT_KERNEL
1410         select CPU_SUPPORTS_HIGHMEM
1411         select CPU_SUPPORTS_HUGEPAGES
1412         select CPU_SUPPORTS_MSA
1413         help
1414           Choose this option to build a kernel for release 2 or later of the
1415           MIPS64 architecture.  Many modern embedded systems with a 64-bit
1416           MIPS processor are based on a MIPS64 processor.  If you know the
1417           specific type of processor in your system, choose those that one
1418           otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1419 
1420 config CPU_MIPS64_R6
1421         bool "MIPS64 Release 6 (EXPERIMENTAL)"
1422         depends on SYS_HAS_CPU_MIPS64_R6
1423         select CPU_HAS_PREFETCH
1424         select CPU_SUPPORTS_32BIT_KERNEL
1425         select CPU_SUPPORTS_64BIT_KERNEL
1426         select CPU_SUPPORTS_HIGHMEM
1427         select CPU_SUPPORTS_MSA
1428         select GENERIC_CSUM
1429         select MIPS_O32_FP64_SUPPORT if MIPS32_O32
1430         help
1431           Choose this option to build a kernel for release 6 or later of the
1432           MIPS64 architecture.  New MIPS processors, starting with the Warrior
1433           family, are based on a MIPS64r6 processor. If you own an older
1434           processor, you probably need to select MIPS64r1 or MIPS64r2 instead.
1435 
1436 config CPU_R3000
1437         bool "R3000"
1438         depends on SYS_HAS_CPU_R3000
1439         select CPU_HAS_WB
1440         select CPU_SUPPORTS_32BIT_KERNEL
1441         select CPU_SUPPORTS_HIGHMEM
1442         help
1443           Please make sure to pick the right CPU type. Linux/MIPS is not
1444           designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1445           *not* work on R4000 machines and vice versa.  However, since most
1446           of the supported machines have an R4000 (or similar) CPU, R4x00
1447           might be a safe bet.  If the resulting kernel does not work,
1448           try to recompile with R3000.
1449 
1450 config CPU_TX39XX
1451         bool "R39XX"
1452         depends on SYS_HAS_CPU_TX39XX
1453         select CPU_SUPPORTS_32BIT_KERNEL
1454 
1455 config CPU_VR41XX
1456         bool "R41xx"
1457         depends on SYS_HAS_CPU_VR41XX
1458         select CPU_SUPPORTS_32BIT_KERNEL
1459         select CPU_SUPPORTS_64BIT_KERNEL
1460         help
1461           The options selects support for the NEC VR4100 series of processors.
1462           Only choose this option if you have one of these processors as a
1463           kernel built with this option will not run on any other type of
1464           processor or vice versa.
1465 
1466 config CPU_R4300
1467         bool "R4300"
1468         depends on SYS_HAS_CPU_R4300
1469         select CPU_SUPPORTS_32BIT_KERNEL
1470         select CPU_SUPPORTS_64BIT_KERNEL
1471         help
1472           MIPS Technologies R4300-series processors.
1473 
1474 config CPU_R4X00
1475         bool "R4x00"
1476         depends on SYS_HAS_CPU_R4X00
1477         select CPU_SUPPORTS_32BIT_KERNEL
1478         select CPU_SUPPORTS_64BIT_KERNEL
1479         select CPU_SUPPORTS_HUGEPAGES
1480         help
1481           MIPS Technologies R4000-series processors other than 4300, including
1482           the R4000, R4400, R4600, and 4700.
1483 
1484 config CPU_TX49XX
1485         bool "R49XX"
1486         depends on SYS_HAS_CPU_TX49XX
1487         select CPU_HAS_PREFETCH
1488         select CPU_SUPPORTS_32BIT_KERNEL
1489         select CPU_SUPPORTS_64BIT_KERNEL
1490         select CPU_SUPPORTS_HUGEPAGES
1491 
1492 config CPU_R5000
1493         bool "R5000"
1494         depends on SYS_HAS_CPU_R5000
1495         select CPU_SUPPORTS_32BIT_KERNEL
1496         select CPU_SUPPORTS_64BIT_KERNEL
1497         select CPU_SUPPORTS_HUGEPAGES
1498         help
1499           MIPS Technologies R5000-series processors other than the Nevada.
1500 
1501 config CPU_R5432
1502         bool "R5432"
1503         depends on SYS_HAS_CPU_R5432
1504         select CPU_SUPPORTS_32BIT_KERNEL
1505         select CPU_SUPPORTS_64BIT_KERNEL
1506         select CPU_SUPPORTS_HUGEPAGES
1507 
1508 config CPU_R5500
1509         bool "R5500"
1510         depends on SYS_HAS_CPU_R5500
1511         select CPU_SUPPORTS_32BIT_KERNEL
1512         select CPU_SUPPORTS_64BIT_KERNEL
1513         select CPU_SUPPORTS_HUGEPAGES
1514         help
1515           NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1516           instruction set.
1517 
1518 config CPU_R6000
1519         bool "R6000"
1520         depends on SYS_HAS_CPU_R6000
1521         select CPU_SUPPORTS_32BIT_KERNEL
1522         help
1523           MIPS Technologies R6000 and R6000A series processors.  Note these
1524           processors are extremely rare and the support for them is incomplete.
1525 
1526 config CPU_NEVADA
1527         bool "RM52xx"
1528         depends on SYS_HAS_CPU_NEVADA
1529         select CPU_SUPPORTS_32BIT_KERNEL
1530         select CPU_SUPPORTS_64BIT_KERNEL
1531         select CPU_SUPPORTS_HUGEPAGES
1532         help
1533           QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1534 
1535 config CPU_R8000
1536         bool "R8000"
1537         depends on SYS_HAS_CPU_R8000
1538         select CPU_HAS_PREFETCH
1539         select CPU_SUPPORTS_64BIT_KERNEL
1540         help
1541           MIPS Technologies R8000 processors.  Note these processors are
1542           uncommon and the support for them is incomplete.
1543 
1544 config CPU_R10000
1545         bool "R10000"
1546         depends on SYS_HAS_CPU_R10000
1547         select CPU_HAS_PREFETCH
1548         select CPU_SUPPORTS_32BIT_KERNEL
1549         select CPU_SUPPORTS_64BIT_KERNEL
1550         select CPU_SUPPORTS_HIGHMEM
1551         select CPU_SUPPORTS_HUGEPAGES
1552         help
1553           MIPS Technologies R10000-series processors.
1554 
1555 config CPU_RM7000
1556         bool "RM7000"
1557         depends on SYS_HAS_CPU_RM7000
1558         select CPU_HAS_PREFETCH
1559         select CPU_SUPPORTS_32BIT_KERNEL
1560         select CPU_SUPPORTS_64BIT_KERNEL
1561         select CPU_SUPPORTS_HIGHMEM
1562         select CPU_SUPPORTS_HUGEPAGES
1563 
1564 config CPU_SB1
1565         bool "SB1"
1566         depends on SYS_HAS_CPU_SB1
1567         select CPU_SUPPORTS_32BIT_KERNEL
1568         select CPU_SUPPORTS_64BIT_KERNEL
1569         select CPU_SUPPORTS_HIGHMEM
1570         select CPU_SUPPORTS_HUGEPAGES
1571         select WEAK_ORDERING
1572 
1573 config CPU_CAVIUM_OCTEON
1574         bool "Cavium Octeon processor"
1575         depends on SYS_HAS_CPU_CAVIUM_OCTEON
1576         select CPU_HAS_PREFETCH
1577         select CPU_SUPPORTS_64BIT_KERNEL
1578         select WEAK_ORDERING
1579         select CPU_SUPPORTS_HIGHMEM
1580         select CPU_SUPPORTS_HUGEPAGES
1581         select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1582         select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1583         select MIPS_L1_CACHE_SHIFT_7
1584         help
1585           The Cavium Octeon processor is a highly integrated chip containing
1586           many ethernet hardware widgets for networking tasks. The processor
1587           can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1588           Full details can be found at http://www.caviumnetworks.com.
1589 
1590 config CPU_BMIPS
1591         bool "Broadcom BMIPS"
1592         depends on SYS_HAS_CPU_BMIPS
1593         select CPU_MIPS32
1594         select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1595         select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1596         select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1597         select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1598         select CPU_SUPPORTS_32BIT_KERNEL
1599         select DMA_NONCOHERENT
1600         select IRQ_MIPS_CPU
1601         select SWAP_IO_SPACE
1602         select WEAK_ORDERING
1603         select CPU_SUPPORTS_HIGHMEM
1604         select CPU_HAS_PREFETCH
1605         help
1606           Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1607 
1608 config CPU_XLR
1609         bool "Netlogic XLR SoC"
1610         depends on SYS_HAS_CPU_XLR
1611         select CPU_SUPPORTS_32BIT_KERNEL
1612         select CPU_SUPPORTS_64BIT_KERNEL
1613         select CPU_SUPPORTS_HIGHMEM
1614         select CPU_SUPPORTS_HUGEPAGES
1615         select WEAK_ORDERING
1616         select WEAK_REORDERING_BEYOND_LLSC
1617         help
1618           Netlogic Microsystems XLR/XLS processors.
1619 
1620 config CPU_XLP
1621         bool "Netlogic XLP SoC"
1622         depends on SYS_HAS_CPU_XLP
1623         select CPU_SUPPORTS_32BIT_KERNEL
1624         select CPU_SUPPORTS_64BIT_KERNEL
1625         select CPU_SUPPORTS_HIGHMEM
1626         select WEAK_ORDERING
1627         select WEAK_REORDERING_BEYOND_LLSC
1628         select CPU_HAS_PREFETCH
1629         select CPU_MIPSR2
1630         select CPU_SUPPORTS_HUGEPAGES
1631         help
1632           Netlogic Microsystems XLP processors.
1633 endchoice
1634 
1635 config CPU_MIPS32_3_5_FEATURES
1636         bool "MIPS32 Release 3.5 Features"
1637         depends on SYS_HAS_CPU_MIPS32_R3_5
1638         depends on CPU_MIPS32_R2 || CPU_MIPS32_R6
1639         help
1640           Choose this option to build a kernel for release 2 or later of the
1641           MIPS32 architecture including features from the 3.5 release such as
1642           support for Enhanced Virtual Addressing (EVA).
1643 
1644 config CPU_MIPS32_3_5_EVA
1645         bool "Enhanced Virtual Addressing (EVA)"
1646         depends on CPU_MIPS32_3_5_FEATURES
1647         select EVA
1648         default y
1649         help
1650           Choose this option if you want to enable the Enhanced Virtual
1651           Addressing (EVA) on your MIPS32 core (such as proAptiv).
1652           One of its primary benefits is an increase in the maximum size
1653           of lowmem (up to 3GB). If unsure, say 'N' here.
1654 
1655 config CPU_MIPS32_R5_FEATURES
1656         bool "MIPS32 Release 5 Features"
1657         depends on SYS_HAS_CPU_MIPS32_R5
1658         depends on CPU_MIPS32_R2
1659         help
1660           Choose this option to build a kernel for release 2 or later of the
1661           MIPS32 architecture including features from release 5 such as
1662           support for Extended Physical Addressing (XPA).
1663 
1664 config CPU_MIPS32_R5_XPA
1665         bool "Extended Physical Addressing (XPA)"
1666         depends on CPU_MIPS32_R5_FEATURES
1667         depends on !EVA
1668         depends on !PAGE_SIZE_4KB
1669         depends on SYS_SUPPORTS_HIGHMEM
1670         select XPA
1671         select HIGHMEM
1672         select ARCH_PHYS_ADDR_T_64BIT
1673         default n
1674         help
1675           Choose this option if you want to enable the Extended Physical
1676           Addressing (XPA) on your MIPS32 core (such as P5600 series). The
1677           benefit is to increase physical addressing equal to or greater
1678           than 40 bits. Note that this has the side effect of turning on
1679           64-bit addressing which in turn makes the PTEs 64-bit in size.
1680           If unsure, say 'N' here.
1681 
1682 if CPU_LOONGSON2F
1683 config CPU_NOP_WORKAROUNDS
1684         bool
1685 
1686 config CPU_JUMP_WORKAROUNDS
1687         bool
1688 
1689 config CPU_LOONGSON2F_WORKAROUNDS
1690         bool "Loongson 2F Workarounds"
1691         default y
1692         select CPU_NOP_WORKAROUNDS
1693         select CPU_JUMP_WORKAROUNDS
1694         help
1695           Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1696           require workarounds.  Without workarounds the system may hang
1697           unexpectedly.  For more information please refer to the gas
1698           -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1699 
1700           Loongson 2F03 and later have fixed these issues and no workarounds
1701           are needed.  The workarounds have no significant side effect on them
1702           but may decrease the performance of the system so this option should
1703           be disabled unless the kernel is intended to be run on 2F01 or 2F02
1704           systems.
1705 
1706           If unsure, please say Y.
1707 endif # CPU_LOONGSON2F
1708 
1709 config SYS_SUPPORTS_ZBOOT
1710         bool
1711         select HAVE_KERNEL_GZIP
1712         select HAVE_KERNEL_BZIP2
1713         select HAVE_KERNEL_LZ4
1714         select HAVE_KERNEL_LZMA
1715         select HAVE_KERNEL_LZO
1716         select HAVE_KERNEL_XZ
1717 
1718 config SYS_SUPPORTS_ZBOOT_UART16550
1719         bool
1720         select SYS_SUPPORTS_ZBOOT
1721 
1722 config CPU_LOONGSON2
1723         bool
1724         select CPU_SUPPORTS_32BIT_KERNEL
1725         select CPU_SUPPORTS_64BIT_KERNEL
1726         select CPU_SUPPORTS_HIGHMEM
1727         select CPU_SUPPORTS_HUGEPAGES
1728 
1729 config CPU_LOONGSON1
1730         bool
1731         select CPU_MIPS32
1732         select CPU_MIPSR2
1733         select CPU_HAS_PREFETCH
1734         select CPU_SUPPORTS_32BIT_KERNEL
1735         select CPU_SUPPORTS_HIGHMEM
1736         select CPU_SUPPORTS_CPUFREQ
1737 
1738 config CPU_BMIPS32_3300
1739         select SMP_UP if SMP
1740         bool
1741 
1742 config CPU_BMIPS4350
1743         bool
1744         select SYS_SUPPORTS_SMP
1745         select SYS_SUPPORTS_HOTPLUG_CPU
1746 
1747 config CPU_BMIPS4380
1748         bool
1749         select MIPS_L1_CACHE_SHIFT_6
1750         select SYS_SUPPORTS_SMP
1751         select SYS_SUPPORTS_HOTPLUG_CPU
1752 
1753 config CPU_BMIPS5000
1754         bool
1755         select MIPS_CPU_SCACHE
1756         select MIPS_L1_CACHE_SHIFT_7
1757         select SYS_SUPPORTS_SMP
1758         select SYS_SUPPORTS_HOTPLUG_CPU
1759 
1760 config SYS_HAS_CPU_LOONGSON3
1761         bool
1762         select CPU_SUPPORTS_CPUFREQ
1763 
1764 config SYS_HAS_CPU_LOONGSON2E
1765         bool
1766 
1767 config SYS_HAS_CPU_LOONGSON2F
1768         bool
1769         select CPU_SUPPORTS_CPUFREQ
1770         select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1771         select CPU_SUPPORTS_UNCACHED_ACCELERATED
1772 
1773 config SYS_HAS_CPU_LOONGSON1B
1774         bool
1775 
1776 config SYS_HAS_CPU_MIPS32_R1
1777         bool
1778 
1779 config SYS_HAS_CPU_MIPS32_R2
1780         bool
1781 
1782 config SYS_HAS_CPU_MIPS32_R3_5
1783         bool
1784 
1785 config SYS_HAS_CPU_MIPS32_R5
1786         bool
1787 
1788 config SYS_HAS_CPU_MIPS32_R6
1789         bool
1790 
1791 config SYS_HAS_CPU_MIPS64_R1
1792         bool
1793 
1794 config SYS_HAS_CPU_MIPS64_R2
1795         bool
1796 
1797 config SYS_HAS_CPU_MIPS64_R6
1798         bool
1799 
1800 config SYS_HAS_CPU_R3000
1801         bool
1802 
1803 config SYS_HAS_CPU_TX39XX
1804         bool
1805 
1806 config SYS_HAS_CPU_VR41XX
1807         bool
1808 
1809 config SYS_HAS_CPU_R4300
1810         bool
1811 
1812 config SYS_HAS_CPU_R4X00
1813         bool
1814 
1815 config SYS_HAS_CPU_TX49XX
1816         bool
1817 
1818 config SYS_HAS_CPU_R5000
1819         bool
1820 
1821 config SYS_HAS_CPU_R5432
1822         bool
1823 
1824 config SYS_HAS_CPU_R5500
1825         bool
1826 
1827 config SYS_HAS_CPU_R6000
1828         bool
1829 
1830 config SYS_HAS_CPU_NEVADA
1831         bool
1832 
1833 config SYS_HAS_CPU_R8000
1834         bool
1835 
1836 config SYS_HAS_CPU_R10000
1837         bool
1838 
1839 config SYS_HAS_CPU_RM7000
1840         bool
1841 
1842 config SYS_HAS_CPU_SB1
1843         bool
1844 
1845 config SYS_HAS_CPU_CAVIUM_OCTEON
1846         bool
1847 
1848 config SYS_HAS_CPU_BMIPS
1849         bool
1850 
1851 config SYS_HAS_CPU_BMIPS32_3300
1852         bool
1853         select SYS_HAS_CPU_BMIPS
1854 
1855 config SYS_HAS_CPU_BMIPS4350
1856         bool
1857         select SYS_HAS_CPU_BMIPS
1858 
1859 config SYS_HAS_CPU_BMIPS4380
1860         bool
1861         select SYS_HAS_CPU_BMIPS
1862 
1863 config SYS_HAS_CPU_BMIPS5000
1864         bool
1865         select SYS_HAS_CPU_BMIPS
1866 
1867 config SYS_HAS_CPU_XLR
1868         bool
1869 
1870 config SYS_HAS_CPU_XLP
1871         bool
1872 
1873 config MIPS_MALTA_PM
1874         depends on MIPS_MALTA
1875         depends on PCI
1876         bool
1877         default y
1878 
1879 #
1880 # CPU may reorder R->R, R->W, W->R, W->W
1881 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1882 #
1883 config WEAK_ORDERING
1884         bool
1885 
1886 #
1887 # CPU may reorder reads and writes beyond LL/SC
1888 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1889 #
1890 config WEAK_REORDERING_BEYOND_LLSC
1891         bool
1892 endmenu
1893 
1894 #
1895 # These two indicate any level of the MIPS32 and MIPS64 architecture
1896 #
1897 config CPU_MIPS32
1898         bool
1899         default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6
1900 
1901 config CPU_MIPS64
1902         bool
1903         default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6
1904 
1905 #
1906 # These two indicate the revision of the architecture, either Release 1 or Release 2
1907 #
1908 config CPU_MIPSR1
1909         bool
1910         default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1911 
1912 config CPU_MIPSR2
1913         bool
1914         default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1915         select MIPS_SPRAM
1916 
1917 config CPU_MIPSR6
1918         bool
1919         default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
1920         select MIPS_SPRAM
1921 
1922 config EVA
1923         bool
1924 
1925 config XPA
1926         bool
1927 
1928 config SYS_SUPPORTS_32BIT_KERNEL
1929         bool
1930 config SYS_SUPPORTS_64BIT_KERNEL
1931         bool
1932 config CPU_SUPPORTS_32BIT_KERNEL
1933         bool
1934 config CPU_SUPPORTS_64BIT_KERNEL
1935         bool
1936 config CPU_SUPPORTS_CPUFREQ
1937         bool
1938 config CPU_SUPPORTS_ADDRWINCFG
1939         bool
1940 config CPU_SUPPORTS_HUGEPAGES
1941         bool
1942 config CPU_SUPPORTS_UNCACHED_ACCELERATED
1943         bool
1944 config MIPS_PGD_C0_CONTEXT
1945         bool
1946         default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
1947 
1948 #
1949 # Set to y for ptrace access to watch registers.
1950 #
1951 config HARDWARE_WATCHPOINTS
1952        bool
1953        default y if CPU_MIPSR1 || CPU_MIPSR2
1954 
1955 menu "Kernel type"
1956 
1957 choice
1958         prompt "Kernel code model"
1959         help
1960           You should only select this option if you have a workload that
1961           actually benefits from 64-bit processing or if your machine has
1962           large memory.  You will only be presented a single option in this
1963           menu if your system does not support both 32-bit and 64-bit kernels.
1964 
1965 config 32BIT
1966         bool "32-bit kernel"
1967         depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1968         select TRAD_SIGNALS
1969         help
1970           Select this option if you want to build a 32-bit kernel.
1971 config 64BIT
1972         bool "64-bit kernel"
1973         depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1974         help
1975           Select this option if you want to build a 64-bit kernel.
1976 
1977 endchoice
1978 
1979 config KVM_GUEST
1980         bool "KVM Guest Kernel"
1981         depends on BROKEN_ON_SMP
1982         help
1983           Select this option if building a guest kernel for KVM (Trap & Emulate) mode
1984 
1985 config KVM_GUEST_TIMER_FREQ
1986         int "Count/Compare Timer Frequency (MHz)"
1987         depends on KVM_GUEST
1988         default 100
1989         help
1990           Set this to non-zero if building a guest kernel for KVM to skip RTC
1991           emulation when determining guest CPU Frequency. Instead, the guest's
1992           timer frequency is specified directly.
1993 
1994 choice
1995         prompt "Kernel page size"
1996         default PAGE_SIZE_4KB
1997 
1998 config PAGE_SIZE_4KB
1999         bool "4kB"
2000         depends on !CPU_LOONGSON2 && !CPU_LOONGSON3
2001         help
2002          This option select the standard 4kB Linux page size.  On some
2003          R3000-family processors this is the only available page size.  Using
2004          4kB page size will minimize memory consumption and is therefore
2005          recommended for low memory systems.
2006 
2007 config PAGE_SIZE_8KB
2008         bool "8kB"
2009         depends on CPU_R8000 || CPU_CAVIUM_OCTEON
2010         help
2011           Using 8kB page size will result in higher performance kernel at
2012           the price of higher memory consumption.  This option is available
2013           only on R8000 and cnMIPS processors.  Note that you will need a
2014           suitable Linux distribution to support this.
2015 
2016 config PAGE_SIZE_16KB
2017         bool "16kB"
2018         depends on !CPU_R3000 && !CPU_TX39XX
2019         help
2020           Using 16kB page size will result in higher performance kernel at
2021           the price of higher memory consumption.  This option is available on
2022           all non-R3000 family processors.  Note that you will need a suitable
2023           Linux distribution to support this.
2024 
2025 config PAGE_SIZE_32KB
2026         bool "32kB"
2027         depends on CPU_CAVIUM_OCTEON
2028         help
2029           Using 32kB page size will result in higher performance kernel at
2030           the price of higher memory consumption.  This option is available
2031           only on cnMIPS cores.  Note that you will need a suitable Linux
2032           distribution to support this.
2033 
2034 config PAGE_SIZE_64KB
2035         bool "64kB"
2036         depends on !CPU_R3000 && !CPU_TX39XX
2037         help
2038           Using 64kB page size will result in higher performance kernel at
2039           the price of higher memory consumption.  This option is available on
2040           all non-R3000 family processor.  Not that at the time of this
2041           writing this option is still high experimental.
2042 
2043 endchoice
2044 
2045 config FORCE_MAX_ZONEORDER
2046         int "Maximum zone order"
2047         range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2048         default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2049         range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2050         default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2051         range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2052         default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2053         range 11 64
2054         default "11"
2055         help
2056           The kernel memory allocator divides physically contiguous memory
2057           blocks into "zones", where each zone is a power of two number of
2058           pages.  This option selects the largest power of two that the kernel
2059           keeps in the memory allocator.  If you need to allocate very large
2060           blocks of physically contiguous memory, then you may need to
2061           increase this value.
2062 
2063           This config option is actually maximum order plus one. For example,
2064           a value of 11 means that the largest free memory block is 2^10 pages.
2065 
2066           The page size is not necessarily 4KB.  Keep this in mind
2067           when choosing a value for this option.
2068 
2069 config BOARD_SCACHE
2070         bool
2071 
2072 config IP22_CPU_SCACHE
2073         bool
2074         select BOARD_SCACHE
2075 
2076 #
2077 # Support for a MIPS32 / MIPS64 style S-caches
2078 #
2079 config MIPS_CPU_SCACHE
2080         bool
2081         select BOARD_SCACHE
2082 
2083 config R5000_CPU_SCACHE
2084         bool
2085         select BOARD_SCACHE
2086 
2087 config RM7000_CPU_SCACHE
2088         bool
2089         select BOARD_SCACHE
2090 
2091 config SIBYTE_DMA_PAGEOPS
2092         bool "Use DMA to clear/copy pages"
2093         depends on CPU_SB1
2094         help
2095           Instead of using the CPU to zero and copy pages, use a Data Mover
2096           channel.  These DMA channels are otherwise unused by the standard
2097           SiByte Linux port.  Seems to give a small performance benefit.
2098 
2099 config CPU_HAS_PREFETCH
2100         bool
2101 
2102 config CPU_GENERIC_DUMP_TLB
2103         bool
2104         default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
2105 
2106 config CPU_R4K_FPU
2107         bool
2108         default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
2109 
2110 config CPU_R4K_CACHE_TLB
2111         bool
2112         default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
2113 
2114 config MIPS_MT_SMP
2115         bool "MIPS MT SMP support (1 TC on each available VPE)"
2116         depends on SYS_SUPPORTS_MULTITHREADING
2117         select CPU_MIPSR2_IRQ_VI
2118         select CPU_MIPSR2_IRQ_EI
2119         select SYNC_R4K
2120         select MIPS_GIC_IPI
2121         select MIPS_MT
2122         select SMP
2123         select SMP_UP
2124         select SYS_SUPPORTS_SMP
2125         select SYS_SUPPORTS_SCHED_SMT
2126         select MIPS_PERF_SHARED_TC_COUNTERS
2127         help
2128           This is a kernel model which is known as SMVP. This is supported
2129           on cores with the MT ASE and uses the available VPEs to implement
2130           virtual processors which supports SMP. This is equivalent to the
2131           Intel Hyperthreading feature. For further information go to
2132           <http://www.imgtec.com/mips/mips-multithreading.asp>.
2133 
2134 config MIPS_MT
2135         bool
2136 
2137 config SCHED_SMT
2138         bool "SMT (multithreading) scheduler support"
2139         depends on SYS_SUPPORTS_SCHED_SMT
2140         default n
2141         help
2142           SMT scheduler support improves the CPU scheduler's decision making
2143           when dealing with MIPS MT enabled cores at a cost of slightly
2144           increased overhead in some places. If unsure say N here.
2145 
2146 config SYS_SUPPORTS_SCHED_SMT
2147         bool
2148 
2149 config SYS_SUPPORTS_MULTITHREADING
2150         bool
2151 
2152 config MIPS_MT_FPAFF
2153         bool "Dynamic FPU affinity for FP-intensive threads"
2154         default y
2155         depends on MIPS_MT_SMP
2156 
2157 config MIPSR2_TO_R6_EMULATOR
2158         bool "MIPS R2-to-R6 emulator"
2159         depends on CPU_MIPSR6 && !SMP
2160         default y
2161         help
2162           Choose this option if you want to run non-R6 MIPS userland code.
2163           Even if you say 'Y' here, the emulator will still be disabled by
2164           default. You can enable it using the 'mipsr2emu' kernel option.
2165           The only reason this is a build-time option is to save ~14K from the
2166           final kernel image.
2167 comment "MIPS R2-to-R6 emulator is only available for UP kernels"
2168         depends on SMP && CPU_MIPSR6
2169 
2170 config MIPS_VPE_LOADER
2171         bool "VPE loader support."
2172         depends on SYS_SUPPORTS_MULTITHREADING && MODULES
2173         select CPU_MIPSR2_IRQ_VI
2174         select CPU_MIPSR2_IRQ_EI
2175         select MIPS_MT
2176         help
2177           Includes a loader for loading an elf relocatable object
2178           onto another VPE and running it.
2179 
2180 config MIPS_VPE_LOADER_CMP
2181         bool
2182         default "y"
2183         depends on MIPS_VPE_LOADER && MIPS_CMP
2184 
2185 config MIPS_VPE_LOADER_MT
2186         bool
2187         default "y"
2188         depends on MIPS_VPE_LOADER && !MIPS_CMP
2189 
2190 config MIPS_VPE_LOADER_TOM
2191         bool "Load VPE program into memory hidden from linux"
2192         depends on MIPS_VPE_LOADER
2193         default y
2194         help
2195           The loader can use memory that is present but has been hidden from
2196           Linux using the kernel command line option "mem=xxMB". It's up to
2197           you to ensure the amount you put in the option and the space your
2198           program requires is less or equal to the amount physically present.
2199 
2200 config MIPS_VPE_APSP_API
2201         bool "Enable support for AP/SP API (RTLX)"
2202         depends on MIPS_VPE_LOADER
2203         help
2204 
2205 config MIPS_VPE_APSP_API_CMP
2206         bool
2207         default "y"
2208         depends on MIPS_VPE_APSP_API && MIPS_CMP
2209 
2210 config MIPS_VPE_APSP_API_MT
2211         bool
2212         default "y"
2213         depends on MIPS_VPE_APSP_API && !MIPS_CMP
2214 
2215 config MIPS_CMP
2216         bool "MIPS CMP framework support (DEPRECATED)"
2217         depends on SYS_SUPPORTS_MIPS_CMP
2218         select MIPS_GIC_IPI
2219         select SMP
2220         select SYNC_R4K
2221         select SYS_SUPPORTS_SMP
2222         select WEAK_ORDERING
2223         default n
2224         help
2225           Select this if you are using a bootloader which implements the "CMP
2226           framework" protocol (ie. YAMON) and want your kernel to make use of
2227           its ability to start secondary CPUs.
2228 
2229           Unless you have a specific need, you should use CONFIG_MIPS_CPS
2230           instead of this.
2231 
2232 config MIPS_CPS
2233         bool "MIPS Coherent Processing System support"
2234         depends on SYS_SUPPORTS_MIPS_CPS
2235         select MIPS_CM
2236         select MIPS_CPC
2237         select MIPS_CPS_PM if HOTPLUG_CPU
2238         select MIPS_GIC_IPI
2239         select SMP
2240         select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2241         select SYS_SUPPORTS_HOTPLUG_CPU
2242         select SYS_SUPPORTS_SMP
2243         select WEAK_ORDERING
2244         help
2245           Select this if you wish to run an SMP kernel across multiple cores
2246           within a MIPS Coherent Processing System. When this option is
2247           enabled the kernel will probe for other cores and boot them with
2248           no external assistance. It is safe to enable this when hardware
2249           support is unavailable.
2250 
2251 config MIPS_CPS_PM
2252         depends on MIPS_CPS
2253         select MIPS_CPC
2254         bool
2255 
2256 config MIPS_GIC_IPI
2257         bool
2258 
2259 config MIPS_CM
2260         bool
2261 
2262 config MIPS_CPC
2263         bool
2264 
2265 config SB1_PASS_2_WORKAROUNDS
2266         bool
2267         depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2268         default y
2269 
2270 config SB1_PASS_2_1_WORKAROUNDS
2271         bool
2272         depends on CPU_SB1 && CPU_SB1_PASS_2
2273         default y
2274 
2275 
2276 config ARCH_PHYS_ADDR_T_64BIT
2277        bool
2278 
2279 choice
2280         prompt "SmartMIPS or microMIPS ASE support"
2281 
2282 config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
2283         bool "None"
2284         help
2285           Select this if you want neither microMIPS nor SmartMIPS support
2286 
2287 config CPU_HAS_SMARTMIPS
2288         depends on SYS_SUPPORTS_SMARTMIPS
2289         bool "SmartMIPS"
2290         help
2291           SmartMIPS is a extension of the MIPS32 architecture aimed at
2292           increased security at both hardware and software level for
2293           smartcards.  Enabling this option will allow proper use of the
2294           SmartMIPS instructions by Linux applications.  However a kernel with
2295           this option will not work on a MIPS core without SmartMIPS core.  If
2296           you don't know you probably don't have SmartMIPS and should say N
2297           here.
2298 
2299 config CPU_MICROMIPS
2300         depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2301         bool "microMIPS"
2302         help
2303           When this option is enabled the kernel will be built using the
2304           microMIPS ISA
2305 
2306 endchoice
2307 
2308 config CPU_HAS_MSA
2309         bool "Support for the MIPS SIMD Architecture (EXPERIMENTAL)"
2310         depends on CPU_SUPPORTS_MSA
2311         depends on 64BIT || MIPS_O32_FP64_SUPPORT
2312         help
2313           MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2314           and a set of SIMD instructions to operate on them. When this option
2315           is enabled the kernel will support allocating & switching MSA
2316           vector register contexts. If you know that your kernel will only be
2317           running on CPUs which do not support MSA or that your userland will
2318           not be making use of it then you may wish to say N here to reduce
2319           the size & complexity of your kernel.
2320 
2321           If unsure, say Y.
2322 
2323 config CPU_HAS_WB
2324         bool
2325 
2326 config XKS01
2327         bool
2328 
2329 #
2330 # Vectored interrupt mode is an R2 feature
2331 #
2332 config CPU_MIPSR2_IRQ_VI
2333         bool
2334 
2335 #
2336 # Extended interrupt mode is an R2 feature
2337 #
2338 config CPU_MIPSR2_IRQ_EI
2339         bool
2340 
2341 config CPU_HAS_SYNC
2342         bool
2343         depends on !CPU_R3000
2344         default y
2345 
2346 #
2347 # CPU non-features
2348 #
2349 config CPU_DADDI_WORKAROUNDS
2350         bool
2351 
2352 config CPU_R4000_WORKAROUNDS
2353         bool
2354         select CPU_R4400_WORKAROUNDS
2355 
2356 config CPU_R4400_WORKAROUNDS
2357         bool
2358 
2359 #
2360 # - Highmem only makes sense for the 32-bit kernel.
2361 # - The current highmem code will only work properly on physically indexed
2362 #   caches such as R3000, SB1, R7000 or those that look like they're virtually
2363 #   indexed such as R4000/R4400 SC and MC versions or R10000.  So for the
2364 #   moment we protect the user and offer the highmem option only on machines
2365 #   where it's known to be safe.  This will not offer highmem on a few systems
2366 #   such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2367 #   indexed CPUs but we're playing safe.
2368 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2369 #   know they might have memory configurations that could make use of highmem
2370 #   support.
2371 #
2372 config HIGHMEM
2373         bool "High Memory Support"
2374         depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2375 
2376 config CPU_SUPPORTS_HIGHMEM
2377         bool
2378 
2379 config SYS_SUPPORTS_HIGHMEM
2380         bool
2381 
2382 config SYS_SUPPORTS_SMARTMIPS
2383         bool
2384 
2385 config SYS_SUPPORTS_MICROMIPS
2386         bool
2387 
2388 config SYS_SUPPORTS_MIPS16
2389         bool
2390         help
2391           This option must be set if a kernel might be executed on a MIPS16-
2392           enabled CPU even if MIPS16 is not actually being used.  In other
2393           words, it makes the kernel MIPS16-tolerant.
2394 
2395 config CPU_SUPPORTS_MSA
2396         bool
2397 
2398 config ARCH_FLATMEM_ENABLE
2399         def_bool y
2400         depends on !NUMA && !CPU_LOONGSON2
2401 
2402 config ARCH_DISCONTIGMEM_ENABLE
2403         bool
2404         default y if SGI_IP27
2405         help
2406           Say Y to support efficient handling of discontiguous physical memory,
2407           for architectures which are either NUMA (Non-Uniform Memory Access)
2408           or have huge holes in the physical address space for other reasons.
2409           See <file:Documentation/vm/numa> for more.
2410 
2411 config ARCH_SPARSEMEM_ENABLE
2412         bool
2413         select SPARSEMEM_STATIC
2414 
2415 config NUMA
2416         bool "NUMA Support"
2417         depends on SYS_SUPPORTS_NUMA
2418         help
2419           Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2420           Access).  This option improves performance on systems with more
2421           than two nodes; on two node systems it is generally better to
2422           leave it disabled; on single node systems disable this option
2423           disabled.
2424 
2425 config SYS_SUPPORTS_NUMA
2426         bool
2427 
2428 config NODES_SHIFT
2429         int
2430         default "6"
2431         depends on NEED_MULTIPLE_NODES
2432 
2433 config HW_PERF_EVENTS
2434         bool "Enable hardware performance counter support for perf events"
2435         depends on PERF_EVENTS && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3)
2436         default y
2437         help
2438           Enable hardware performance counter support for perf events. If
2439           disabled, perf events will use software events only.
2440 
2441 source "mm/Kconfig"
2442 
2443 config SMP
2444         bool "Multi-Processing support"
2445         depends on SYS_SUPPORTS_SMP
2446         help
2447           This enables support for systems with more than one CPU. If you have
2448           a system with only one CPU, say N. If you have a system with more
2449           than one CPU, say Y.
2450 
2451           If you say N here, the kernel will run on uni- and multiprocessor
2452           machines, but will use only one CPU of a multiprocessor machine. If
2453           you say Y here, the kernel will run on many, but not all,
2454           uniprocessor machines. On a uniprocessor machine, the kernel
2455           will run faster if you say N here.
2456 
2457           People using multiprocessor machines who say Y here should also say
2458           Y to "Enhanced Real Time Clock Support", below.
2459 
2460           See also the SMP-HOWTO available at
2461           <http://www.tldp.org/docs.html#howto>.
2462 
2463           If you don't know what to do here, say N.
2464 
2465 config SMP_UP
2466         bool
2467 
2468 config SYS_SUPPORTS_MIPS_CMP
2469         bool
2470 
2471 config SYS_SUPPORTS_MIPS_CPS
2472         bool
2473 
2474 config SYS_SUPPORTS_SMP
2475         bool
2476 
2477 config NR_CPUS_DEFAULT_4
2478         bool
2479 
2480 config NR_CPUS_DEFAULT_8
2481         bool
2482 
2483 config NR_CPUS_DEFAULT_16
2484         bool
2485 
2486 config NR_CPUS_DEFAULT_32
2487         bool
2488 
2489 config NR_CPUS_DEFAULT_64
2490         bool
2491 
2492 config NR_CPUS
2493         int "Maximum number of CPUs (2-256)"
2494         range 2 256
2495         depends on SMP
2496         default "4" if NR_CPUS_DEFAULT_4
2497         default "8" if NR_CPUS_DEFAULT_8
2498         default "16" if NR_CPUS_DEFAULT_16
2499         default "32" if NR_CPUS_DEFAULT_32
2500         default "64" if NR_CPUS_DEFAULT_64
2501         help
2502           This allows you to specify the maximum number of CPUs which this
2503           kernel will support.  The maximum supported value is 32 for 32-bit
2504           kernel and 64 for 64-bit kernels; the minimum value which makes
2505           sense is 1 for Qemu (useful only for kernel debugging purposes)
2506           and 2 for all others.
2507 
2508           This is purely to save memory - each supported CPU adds
2509           approximately eight kilobytes to the kernel image.  For best
2510           performance should round up your number of processors to the next
2511           power of two.
2512 
2513 config MIPS_PERF_SHARED_TC_COUNTERS
2514         bool
2515 
2516 #
2517 # Timer Interrupt Frequency Configuration
2518 #
2519 
2520 choice
2521         prompt "Timer frequency"
2522         default HZ_250
2523         help
2524          Allows the configuration of the timer frequency.
2525 
2526         config HZ_48
2527                 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2528 
2529         config HZ_100
2530                 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2531 
2532         config HZ_128
2533                 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2534 
2535         config HZ_250
2536                 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2537 
2538         config HZ_256
2539                 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2540 
2541         config HZ_1000
2542                 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2543 
2544         config HZ_1024
2545                 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2546 
2547 endchoice
2548 
2549 config SYS_SUPPORTS_48HZ
2550         bool
2551 
2552 config SYS_SUPPORTS_100HZ
2553         bool
2554 
2555 config SYS_SUPPORTS_128HZ
2556         bool
2557 
2558 config SYS_SUPPORTS_250HZ
2559         bool
2560 
2561 config SYS_SUPPORTS_256HZ
2562         bool
2563 
2564 config SYS_SUPPORTS_1000HZ
2565         bool
2566 
2567 config SYS_SUPPORTS_1024HZ
2568         bool
2569 
2570 config SYS_SUPPORTS_ARBIT_HZ
2571         bool
2572         default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2573                      !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2574                      !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2575                      !SYS_SUPPORTS_1024HZ
2576 
2577 config HZ
2578         int
2579         default 48 if HZ_48
2580         default 100 if HZ_100
2581         default 128 if HZ_128
2582         default 250 if HZ_250
2583         default 256 if HZ_256
2584         default 1000 if HZ_1000
2585         default 1024 if HZ_1024
2586 
2587 config SCHED_HRTICK
2588         def_bool HIGH_RES_TIMERS
2589 
2590 source "kernel/Kconfig.preempt"
2591 
2592 config KEXEC
2593         bool "Kexec system call"
2594         help
2595           kexec is a system call that implements the ability to shutdown your
2596           current kernel, and to start another kernel.  It is like a reboot
2597           but it is independent of the system firmware.   And like a reboot
2598           you can start any kernel with it, not just Linux.
2599 
2600           The name comes from the similarity to the exec system call.
2601 
2602           It is an ongoing process to be certain the hardware in a machine
2603           is properly shutdown, so do not be surprised if this code does not
2604           initially work for you.  As of this writing the exact hardware
2605           interface is strongly in flux, so no good recommendation can be
2606           made.
2607 
2608 config CRASH_DUMP
2609           bool "Kernel crash dumps"
2610           help
2611           Generate crash dump after being started by kexec.
2612           This should be normally only set in special crash dump kernels
2613           which are loaded in the main kernel with kexec-tools into
2614           a specially reserved region and then later executed after
2615           a crash by kdump/kexec. The crash dump kernel must be compiled
2616           to a memory address not used by the main kernel or firmware using
2617           PHYSICAL_START.
2618 
2619 config PHYSICAL_START
2620           hex "Physical address where the kernel is loaded"
2621           default "0xffffffff84000000" if 64BIT
2622           default "0x84000000" if 32BIT
2623           depends on CRASH_DUMP
2624           help
2625           This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2626           If you plan to use kernel for capturing the crash dump change
2627           this value to start of the reserved region (the "X" value as
2628           specified in the "crashkernel=YM@XM" command line boot parameter
2629           passed to the panic-ed kernel).
2630 
2631 config SECCOMP
2632         bool "Enable seccomp to safely compute untrusted bytecode"
2633         depends on PROC_FS
2634         default y
2635         help
2636           This kernel feature is useful for number crunching applications
2637           that may need to compute untrusted bytecode during their
2638           execution. By using pipes or other transports made available to
2639           the process as file descriptors supporting the read/write
2640           syscalls, it's possible to isolate those applications in
2641           their own address space using seccomp. Once seccomp is
2642           enabled via /proc/<pid>/seccomp, it cannot be disabled
2643           and the task is only allowed to execute a few safe syscalls
2644           defined by each seccomp mode.
2645 
2646           If unsure, say Y. Only embedded should say N here.
2647 
2648 config MIPS_O32_FP64_SUPPORT
2649         bool "Support for O32 binaries using 64-bit FP (EXPERIMENTAL)"
2650         depends on 32BIT || MIPS32_O32
2651         help
2652           When this is enabled, the kernel will support use of 64-bit floating
2653           point registers with binaries using the O32 ABI along with the
2654           EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
2655           32-bit MIPS systems this support is at the cost of increasing the
2656           size and complexity of the compiled FPU emulator. Thus if you are
2657           running a MIPS32 system and know that none of your userland binaries
2658           will require 64-bit floating point, you may wish to reduce the size
2659           of your kernel & potentially improve FP emulation performance by
2660           saying N here.
2661 
2662           Although binutils currently supports use of this flag the details
2663           concerning its effect upon the O32 ABI in userland are still being
2664           worked on. In order to avoid userland becoming dependant upon current
2665           behaviour before the details have been finalised, this option should
2666           be considered experimental and only enabled by those working upon
2667           said details.
2668 
2669           If unsure, say N.
2670 
2671 config USE_OF
2672         bool
2673         select OF
2674         select OF_EARLY_FLATTREE
2675         select IRQ_DOMAIN
2676 
2677 config BUILTIN_DTB
2678         bool
2679 
2680 choice
2681         prompt "Kernel appended dtb support" if OF
2682         default MIPS_NO_APPENDED_DTB
2683 
2684         config MIPS_NO_APPENDED_DTB
2685                 bool "None"
2686                 help
2687                   Do not enable appended dtb support.
2688 
2689         config MIPS_RAW_APPENDED_DTB
2690                 bool "vmlinux.bin"
2691                 help
2692                   With this option, the boot code will look for a device tree binary
2693                   DTB) appended to raw vmlinux.bin (without decompressor).
2694                   (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb).
2695 
2696                   This is meant as a backward compatibility convenience for those
2697                   systems with a bootloader that can't be upgraded to accommodate
2698                   the documented boot protocol using a device tree.
2699 
2700                   Beware that there is very little in terms of protection against
2701                   this option being confused by leftover garbage in memory that might
2702                   look like a DTB header after a reboot if no actual DTB is appended
2703                   to vmlinux.bin.  Do not leave this option active in a production kernel
2704                   if you don't intend to always append a DTB.
2705 
2706         config MIPS_ZBOOT_APPENDED_DTB
2707                 bool "vmlinuz.bin"
2708                 depends on SYS_SUPPORTS_ZBOOT
2709                 help
2710                   With this option, the boot code will look for a device tree binary
2711                   DTB) appended to raw vmlinuz.bin (with decompressor).
2712                   (e.g. cat vmlinuz.bin <filename>.dtb > vmlinuz_w_dtb).
2713 
2714                   This is meant as a backward compatibility convenience for those
2715                   systems with a bootloader that can't be upgraded to accommodate
2716                   the documented boot protocol using a device tree.
2717 
2718                   Beware that there is very little in terms of protection against
2719                   this option being confused by leftover garbage in memory that might
2720                   look like a DTB header after a reboot if no actual DTB is appended
2721                   to vmlinuz.bin.  Do not leave this option active in a production kernel
2722                   if you don't intend to always append a DTB.
2723 endchoice
2724 
2725 endmenu
2726 
2727 config LOCKDEP_SUPPORT
2728         bool
2729         default y
2730 
2731 config STACKTRACE_SUPPORT
2732         bool
2733         default y
2734 
2735 config PGTABLE_LEVELS
2736         int
2737         default 3 if 64BIT && !PAGE_SIZE_64KB
2738         default 2
2739 
2740 source "init/Kconfig"
2741 
2742 source "kernel/Kconfig.freezer"
2743 
2744 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2745 
2746 config HW_HAS_EISA
2747         bool
2748 config HW_HAS_PCI
2749         bool
2750 
2751 config PCI
2752         bool "Support for PCI controller"
2753         depends on HW_HAS_PCI
2754         select PCI_DOMAINS
2755         select NO_GENERIC_PCI_IOPORT_MAP
2756         help
2757           Find out whether you have a PCI motherboard. PCI is the name of a
2758           bus system, i.e. the way the CPU talks to the other stuff inside
2759           your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2760           say Y, otherwise N.
2761 
2762 config HT_PCI
2763         bool "Support for HT-linked PCI"
2764         default y
2765         depends on CPU_LOONGSON3
2766         select PCI
2767         select PCI_DOMAINS
2768         help
2769           Loongson family machines use Hyper-Transport bus for inter-core
2770           connection and device connection. The PCI bus is a subordinate
2771           linked at HT. Choose Y for Loongson-3 based machines.
2772 
2773 config PCI_DOMAINS
2774         bool
2775 
2776 source "drivers/pci/Kconfig"
2777 
2778 source "drivers/pci/pcie/Kconfig"
2779 
2780 #
2781 # ISA support is now enabled via select.  Too many systems still have the one
2782 # or other ISA chip on the board that users don't know about so don't expect
2783 # users to choose the right thing ...
2784 #
2785 config ISA
2786         bool
2787 
2788 config EISA
2789         bool "EISA support"
2790         depends on HW_HAS_EISA
2791         select ISA
2792         select GENERIC_ISA_DMA
2793         ---help---
2794           The Extended Industry Standard Architecture (EISA) bus was
2795           developed as an open alternative to the IBM MicroChannel bus.
2796 
2797           The EISA bus provided some of the features of the IBM MicroChannel
2798           bus while maintaining backward compatibility with cards made for
2799           the older ISA bus.  The EISA bus saw limited use between 1988 and
2800           1995 when it was made obsolete by the PCI bus.
2801 
2802           Say Y here if you are building a kernel for an EISA-based machine.
2803 
2804           Otherwise, say N.
2805 
2806 source "drivers/eisa/Kconfig"
2807 
2808 config TC
2809         bool "TURBOchannel support"
2810         depends on MACH_DECSTATION
2811         help
2812           TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2813           processors.  TURBOchannel programming specifications are available
2814           at:
2815           <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2816           and:
2817           <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2818           Linux driver support status is documented at:
2819           <http://www.linux-mips.org/wiki/DECstation>
2820 
2821 config MMU
2822         bool
2823         default y
2824 
2825 config I8253
2826         bool
2827         select CLKSRC_I8253
2828         select CLKEVT_I8253
2829         select MIPS_EXTERNAL_TIMER
2830 
2831 config ZONE_DMA
2832         bool
2833 
2834 config ZONE_DMA32
2835         bool
2836 
2837 source "drivers/pcmcia/Kconfig"
2838 
2839 source "drivers/pci/hotplug/Kconfig"
2840 
2841 config RAPIDIO
2842         tristate "RapidIO support"
2843         depends on PCI
2844         default n
2845         help
2846           If you say Y here, the kernel will include drivers and
2847           infrastructure code to support RapidIO interconnect devices.
2848 
2849 source "drivers/rapidio/Kconfig"
2850 
2851 endmenu
2852 
2853 menu "Executable file formats"
2854 
2855 source "fs/Kconfig.binfmt"
2856 
2857 config TRAD_SIGNALS
2858         bool
2859 
2860 config MIPS32_COMPAT
2861         bool
2862 
2863 config COMPAT
2864         bool
2865 
2866 config SYSVIPC_COMPAT
2867         bool
2868 
2869 config MIPS32_O32
2870         bool "Kernel support for o32 binaries"
2871         depends on 64BIT
2872         select ARCH_WANT_OLD_COMPAT_IPC
2873         select COMPAT
2874         select MIPS32_COMPAT
2875         select SYSVIPC_COMPAT if SYSVIPC
2876         help
2877           Select this option if you want to run o32 binaries.  These are pure
2878           32-bit binaries as used by the 32-bit Linux/MIPS port.  Most of
2879           existing binaries are in this format.
2880 
2881           If unsure, say Y.
2882 
2883 config MIPS32_N32
2884         bool "Kernel support for n32 binaries"
2885         depends on 64BIT
2886         select COMPAT
2887         select MIPS32_COMPAT
2888         select SYSVIPC_COMPAT if SYSVIPC
2889         help
2890           Select this option if you want to run n32 binaries.  These are
2891           64-bit binaries using 32-bit quantities for addressing and certain
2892           data that would normally be 64-bit.  They are used in special
2893           cases.
2894 
2895           If unsure, say N.
2896 
2897 config BINFMT_ELF32
2898         bool
2899         default y if MIPS32_O32 || MIPS32_N32
2900 
2901 endmenu
2902 
2903 menu "Power management options"
2904 
2905 config ARCH_HIBERNATION_POSSIBLE
2906         def_bool y
2907         depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2908 
2909 config ARCH_SUSPEND_POSSIBLE
2910         def_bool y
2911         depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2912 
2913 source "kernel/power/Kconfig"
2914 
2915 endmenu
2916 
2917 config MIPS_EXTERNAL_TIMER
2918         bool
2919 
2920 menu "CPU Power Management"
2921 
2922 if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
2923 source "drivers/cpufreq/Kconfig"
2924 endif
2925 
2926 source "drivers/cpuidle/Kconfig"
2927 
2928 endmenu
2929 
2930 source "net/Kconfig"
2931 
2932 source "drivers/Kconfig"
2933 
2934 source "drivers/firmware/Kconfig"
2935 
2936 source "fs/Kconfig"
2937 
2938 source "arch/mips/Kconfig.debug"
2939 
2940 source "security/Kconfig"
2941 
2942 source "crypto/Kconfig"
2943 
2944 source "lib/Kconfig"
2945 
2946 source "arch/mips/kvm/Kconfig"

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