Version:  2.0.40 2.2.26 2.4.37 3.5 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

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_DEBUG_KMEMLEAK
 25         select HAVE_SYSCALL_TRACEPOINTS
 26         select ARCH_HAS_ELF_RANDOMIZE
 27         select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT
 28         select RTC_LIB if !MACH_LOONGSON
 29         select GENERIC_ATOMIC64 if !64BIT
 30         select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
 31         select HAVE_DMA_ATTRS
 32         select HAVE_DMA_CONTIGUOUS
 33         select HAVE_DMA_API_DEBUG
 34         select GENERIC_IRQ_PROBE
 35         select GENERIC_IRQ_SHOW
 36         select GENERIC_PCI_IOMAP
 37         select HAVE_ARCH_JUMP_LABEL
 38         select ARCH_WANT_IPC_PARSE_VERSION
 39         select IRQ_FORCED_THREADING
 40         select HAVE_MEMBLOCK
 41         select HAVE_MEMBLOCK_NODE_MAP
 42         select ARCH_DISCARD_MEMBLOCK
 43         select GENERIC_SMP_IDLE_THREAD
 44         select BUILDTIME_EXTABLE_SORT
 45         select GENERIC_CLOCKEVENTS
 46         select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC
 47         select GENERIC_CMOS_UPDATE
 48         select HAVE_MOD_ARCH_SPECIFIC
 49         select VIRT_TO_BUS
 50         select MODULES_USE_ELF_REL if MODULES
 51         select MODULES_USE_ELF_RELA if MODULES && 64BIT
 52         select CLONE_BACKWARDS
 53         select HAVE_DEBUG_STACKOVERFLOW
 54         select HAVE_CC_STACKPROTECTOR
 55         select CPU_PM if CPU_IDLE
 56         select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
 57         select ARCH_BINFMT_ELF_STATE
 58         select SYSCTL_EXCEPTION_TRACE
 59         select HAVE_VIRT_CPU_ACCOUNTING_GEN
 60         select HAVE_IRQ_TIME_ACCOUNTING
 61 
 62 menu "Machine selection"
 63 
 64 choice
 65         prompt "System type"
 66         default SGI_IP22
 67 
 68 config MIPS_ALCHEMY
 69         bool "Alchemy processor based machines"
 70         select ARCH_PHYS_ADDR_T_64BIT
 71         select CEVT_R4K
 72         select CSRC_R4K
 73         select IRQ_CPU
 74         select DMA_MAYBE_COHERENT       # Au1000,1500,1100 aren't, rest is
 75         select SYS_HAS_CPU_MIPS32_R1
 76         select SYS_SUPPORTS_32BIT_KERNEL
 77         select SYS_SUPPORTS_APM_EMULATION
 78         select ARCH_REQUIRE_GPIOLIB
 79         select SYS_SUPPORTS_ZBOOT
 80         select COMMON_CLK
 81 
 82 config AR7
 83         bool "Texas Instruments AR7"
 84         select BOOT_ELF32
 85         select DMA_NONCOHERENT
 86         select CEVT_R4K
 87         select CSRC_R4K
 88         select IRQ_CPU
 89         select NO_EXCEPT_FILL
 90         select SWAP_IO_SPACE
 91         select SYS_HAS_CPU_MIPS32_R1
 92         select SYS_HAS_EARLY_PRINTK
 93         select SYS_SUPPORTS_32BIT_KERNEL
 94         select SYS_SUPPORTS_LITTLE_ENDIAN
 95         select SYS_SUPPORTS_MIPS16
 96         select SYS_SUPPORTS_ZBOOT_UART16550
 97         select ARCH_REQUIRE_GPIOLIB
 98         select VLYNQ
 99         select HAVE_CLK
100         help
101           Support for the Texas Instruments AR7 System-on-a-Chip
102           family: TNETD7100, 7200 and 7300.
103 
104 config ATH25
105         bool "Atheros AR231x/AR531x SoC support"
106         select CEVT_R4K
107         select CSRC_R4K
108         select DMA_NONCOHERENT
109         select IRQ_CPU
110         select IRQ_DOMAIN
111         select SYS_HAS_CPU_MIPS32_R1
112         select SYS_SUPPORTS_BIG_ENDIAN
113         select SYS_SUPPORTS_32BIT_KERNEL
114         select SYS_HAS_EARLY_PRINTK
115         help
116           Support for Atheros AR231x and Atheros AR531x based boards
117 
118 config ATH79
119         bool "Atheros AR71XX/AR724X/AR913X based boards"
120         select ARCH_REQUIRE_GPIOLIB
121         select BOOT_RAW
122         select CEVT_R4K
123         select CSRC_R4K
124         select DMA_NONCOHERENT
125         select HAVE_CLK
126         select CLKDEV_LOOKUP
127         select IRQ_CPU
128         select MIPS_MACHINE
129         select SYS_HAS_CPU_MIPS32_R2
130         select SYS_HAS_EARLY_PRINTK
131         select SYS_SUPPORTS_32BIT_KERNEL
132         select SYS_SUPPORTS_BIG_ENDIAN
133         select SYS_SUPPORTS_MIPS16
134         help
135           Support for the Atheros AR71XX/AR724X/AR913X SoCs.
136 
137 config BMIPS_GENERIC
138         bool "Broadcom Generic BMIPS kernel"
139         select BOOT_RAW
140         select NO_EXCEPT_FILL
141         select USE_OF
142         select CEVT_R4K
143         select CSRC_R4K
144         select SYNC_R4K
145         select COMMON_CLK
146         select BCM7038_L1_IRQ
147         select BCM7120_L2_IRQ
148         select BRCMSTB_L2_IRQ
149         select IRQ_CPU
150         select RAW_IRQ_ACCESSORS
151         select DMA_NONCOHERENT
152         select SYS_SUPPORTS_32BIT_KERNEL
153         select SYS_SUPPORTS_LITTLE_ENDIAN
154         select SYS_SUPPORTS_BIG_ENDIAN
155         select SYS_SUPPORTS_HIGHMEM
156         select SYS_HAS_CPU_BMIPS32_3300
157         select SYS_HAS_CPU_BMIPS4350
158         select SYS_HAS_CPU_BMIPS4380
159         select SYS_HAS_CPU_BMIPS5000
160         select SWAP_IO_SPACE
161         select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
162         select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
163         select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
164         select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
165         help
166           Build a generic DT-based kernel image that boots on select
167           BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top
168           box chips.  Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN
169           must be set appropriately for your board.
170 
171 config BCM47XX
172         bool "Broadcom BCM47XX based boards"
173         select ARCH_WANT_OPTIONAL_GPIOLIB
174         select BOOT_RAW
175         select CEVT_R4K
176         select CSRC_R4K
177         select DMA_NONCOHERENT
178         select HW_HAS_PCI
179         select IRQ_CPU
180         select SYS_HAS_CPU_MIPS32_R1
181         select NO_EXCEPT_FILL
182         select SYS_SUPPORTS_32BIT_KERNEL
183         select SYS_SUPPORTS_LITTLE_ENDIAN
184         select SYS_SUPPORTS_MIPS16
185         select SYS_HAS_EARLY_PRINTK
186         select USE_GENERIC_EARLY_PRINTK_8250
187         select GPIOLIB
188         select LEDS_GPIO_REGISTER
189         help
190          Support for BCM47XX based boards
191 
192 config BCM63XX
193         bool "Broadcom BCM63XX based boards"
194         select BOOT_RAW
195         select CEVT_R4K
196         select CSRC_R4K
197         select SYNC_R4K
198         select DMA_NONCOHERENT
199         select IRQ_CPU
200         select SYS_SUPPORTS_32BIT_KERNEL
201         select SYS_SUPPORTS_BIG_ENDIAN
202         select SYS_HAS_EARLY_PRINTK
203         select SWAP_IO_SPACE
204         select ARCH_REQUIRE_GPIOLIB
205         select HAVE_CLK
206         select MIPS_L1_CACHE_SHIFT_4
207         help
208          Support for BCM63XX based boards
209 
210 config MIPS_COBALT
211         bool "Cobalt Server"
212         select CEVT_R4K
213         select CSRC_R4K
214         select CEVT_GT641XX
215         select DMA_NONCOHERENT
216         select HW_HAS_PCI
217         select I8253
218         select I8259
219         select IRQ_CPU
220         select IRQ_GT641XX
221         select PCI_GT64XXX_PCI0
222         select PCI
223         select SYS_HAS_CPU_NEVADA
224         select SYS_HAS_EARLY_PRINTK
225         select SYS_SUPPORTS_32BIT_KERNEL
226         select SYS_SUPPORTS_64BIT_KERNEL
227         select SYS_SUPPORTS_LITTLE_ENDIAN
228         select USE_GENERIC_EARLY_PRINTK_8250
229 
230 config MACH_DECSTATION
231         bool "DECstations"
232         select BOOT_ELF32
233         select CEVT_DS1287
234         select CEVT_R4K if CPU_R4X00
235         select CSRC_IOASIC
236         select CSRC_R4K if CPU_R4X00
237         select CPU_DADDI_WORKAROUNDS if 64BIT
238         select CPU_R4000_WORKAROUNDS if 64BIT
239         select CPU_R4400_WORKAROUNDS if 64BIT
240         select DMA_NONCOHERENT
241         select NO_IOPORT_MAP
242         select IRQ_CPU
243         select SYS_HAS_CPU_R3000
244         select SYS_HAS_CPU_R4X00
245         select SYS_SUPPORTS_32BIT_KERNEL
246         select SYS_SUPPORTS_64BIT_KERNEL
247         select SYS_SUPPORTS_LITTLE_ENDIAN
248         select SYS_SUPPORTS_128HZ
249         select SYS_SUPPORTS_256HZ
250         select SYS_SUPPORTS_1024HZ
251         select MIPS_L1_CACHE_SHIFT_4
252         help
253           This enables support for DEC's MIPS based workstations.  For details
254           see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
255           DECstation porting pages on <http://decstation.unix-ag.org/>.
256 
257           If you have one of the following DECstation Models you definitely
258           want to choose R4xx0 for the CPU Type:
259 
260                 DECstation 5000/50
261                 DECstation 5000/150
262                 DECstation 5000/260
263                 DECsystem 5900/260
264 
265           otherwise choose R3000.
266 
267 config MACH_JAZZ
268         bool "Jazz family of machines"
269         select FW_ARC
270         select FW_ARC32
271         select ARCH_MAY_HAVE_PC_FDC
272         select CEVT_R4K
273         select CSRC_R4K
274         select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
275         select GENERIC_ISA_DMA
276         select HAVE_PCSPKR_PLATFORM
277         select IRQ_CPU
278         select I8253
279         select I8259
280         select ISA
281         select SYS_HAS_CPU_R4X00
282         select SYS_SUPPORTS_32BIT_KERNEL
283         select SYS_SUPPORTS_64BIT_KERNEL
284         select SYS_SUPPORTS_100HZ
285         help
286          This a family of machines based on the MIPS R4030 chipset which was
287          used by several vendors to build RISC/os and Windows NT workstations.
288          Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
289          Olivetti M700-10 workstations.
290 
291 config MACH_JZ4740
292         bool "Ingenic JZ4740 based machines"
293         select SYS_HAS_CPU_MIPS32_R1
294         select SYS_SUPPORTS_32BIT_KERNEL
295         select SYS_SUPPORTS_LITTLE_ENDIAN
296         select SYS_SUPPORTS_ZBOOT_UART16550
297         select DMA_NONCOHERENT
298         select IRQ_CPU
299         select ARCH_REQUIRE_GPIOLIB
300         select SYS_HAS_EARLY_PRINTK
301         select HAVE_CLK
302         select GENERIC_IRQ_CHIP
303 
304 config LANTIQ
305         bool "Lantiq based platforms"
306         select DMA_NONCOHERENT
307         select IRQ_CPU
308         select CEVT_R4K
309         select CSRC_R4K
310         select SYS_HAS_CPU_MIPS32_R1
311         select SYS_HAS_CPU_MIPS32_R2
312         select SYS_SUPPORTS_BIG_ENDIAN
313         select SYS_SUPPORTS_32BIT_KERNEL
314         select SYS_SUPPORTS_MIPS16
315         select SYS_SUPPORTS_MULTITHREADING
316         select SYS_HAS_EARLY_PRINTK
317         select ARCH_REQUIRE_GPIOLIB
318         select SWAP_IO_SPACE
319         select BOOT_RAW
320         select HAVE_MACH_CLKDEV
321         select CLKDEV_LOOKUP
322         select USE_OF
323         select PINCTRL
324         select PINCTRL_LANTIQ
325         select ARCH_HAS_RESET_CONTROLLER
326         select RESET_CONTROLLER
327 
328 config LASAT
329         bool "LASAT Networks platforms"
330         select CEVT_R4K
331         select CRC32
332         select CSRC_R4K
333         select DMA_NONCOHERENT
334         select SYS_HAS_EARLY_PRINTK
335         select HW_HAS_PCI
336         select IRQ_CPU
337         select PCI_GT64XXX_PCI0
338         select MIPS_NILE4
339         select R5000_CPU_SCACHE
340         select SYS_HAS_CPU_R5000
341         select SYS_SUPPORTS_32BIT_KERNEL
342         select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
343         select SYS_SUPPORTS_LITTLE_ENDIAN
344 
345 config MACH_LOONGSON
346         bool "Loongson family of machines"
347         select SYS_SUPPORTS_ZBOOT
348         help
349           This enables the support of Loongson family of machines.
350 
351           Loongson is a family of general-purpose MIPS-compatible CPUs.
352           developed at Institute of Computing Technology (ICT),
353           Chinese Academy of Sciences (CAS) in the People's Republic
354           of China. The chief architect is Professor Weiwu Hu.
355 
356 config MACH_LOONGSON1
357         bool "Loongson 1 family of machines"
358         select SYS_SUPPORTS_ZBOOT
359         help
360           This enables support for the Loongson 1 based machines.
361 
362           Loongson 1 is a family of 32-bit MIPS-compatible SoCs developed by
363           the ICT (Institute of Computing Technology) and the Chinese Academy
364           of Sciences.
365 
366 config MACH_PISTACHIO
367         bool "IMG Pistachio SoC based boards"
368         select ARCH_REQUIRE_GPIOLIB
369         select BOOT_ELF32
370         select BOOT_RAW
371         select CEVT_R4K
372         select CLKSRC_MIPS_GIC
373         select COMMON_CLK
374         select CSRC_R4K
375         select DMA_MAYBE_COHERENT
376         select IRQ_CPU
377         select LIBFDT
378         select MFD_SYSCON
379         select MIPS_CPU_SCACHE
380         select MIPS_GIC
381         select PINCTRL
382         select REGULATOR
383         select SYS_HAS_CPU_MIPS32_R2
384         select SYS_SUPPORTS_32BIT_KERNEL
385         select SYS_SUPPORTS_LITTLE_ENDIAN
386         select SYS_SUPPORTS_MIPS_CPS
387         select SYS_SUPPORTS_MULTITHREADING
388         select SYS_SUPPORTS_ZBOOT
389         select USE_OF
390         help
391           This enables support for the IMG Pistachio SoC platform.
392 
393 config MIPS_MALTA
394         bool "MIPS Malta board"
395         select ARCH_MAY_HAVE_PC_FDC
396         select BOOT_ELF32
397         select BOOT_RAW
398         select CEVT_R4K
399         select CSRC_R4K
400         select CLKSRC_MIPS_GIC
401         select DMA_MAYBE_COHERENT
402         select GENERIC_ISA_DMA
403         select HAVE_PCSPKR_PLATFORM
404         select IRQ_CPU
405         select MIPS_GIC
406         select HW_HAS_PCI
407         select I8253
408         select I8259
409         select MIPS_BONITO64
410         select MIPS_CPU_SCACHE
411         select MIPS_L1_CACHE_SHIFT_6
412         select PCI_GT64XXX_PCI0
413         select MIPS_MSC
414         select SWAP_IO_SPACE
415         select SYS_HAS_CPU_MIPS32_R1
416         select SYS_HAS_CPU_MIPS32_R2
417         select SYS_HAS_CPU_MIPS32_R3_5
418         select SYS_HAS_CPU_MIPS32_R5
419         select SYS_HAS_CPU_MIPS32_R6
420         select SYS_HAS_CPU_MIPS64_R1
421         select SYS_HAS_CPU_MIPS64_R2
422         select SYS_HAS_CPU_MIPS64_R6
423         select SYS_HAS_CPU_NEVADA
424         select SYS_HAS_CPU_RM7000
425         select SYS_SUPPORTS_32BIT_KERNEL
426         select SYS_SUPPORTS_64BIT_KERNEL
427         select SYS_SUPPORTS_BIG_ENDIAN
428         select SYS_SUPPORTS_HIGHMEM
429         select SYS_SUPPORTS_LITTLE_ENDIAN
430         select SYS_SUPPORTS_MICROMIPS
431         select SYS_SUPPORTS_MIPS_CMP
432         select SYS_SUPPORTS_MIPS_CPS
433         select SYS_SUPPORTS_MIPS16
434         select SYS_SUPPORTS_MULTITHREADING
435         select SYS_SUPPORTS_SMARTMIPS
436         select SYS_SUPPORTS_ZBOOT
437         help
438           This enables support for the MIPS Technologies Malta evaluation
439           board.
440 
441 config MIPS_SEAD3
442         bool "MIPS SEAD3 board"
443         select BOOT_ELF32
444         select BOOT_RAW
445         select BUILTIN_DTB
446         select CEVT_R4K
447         select CSRC_R4K
448         select CLKSRC_MIPS_GIC
449         select CPU_MIPSR2_IRQ_VI
450         select CPU_MIPSR2_IRQ_EI
451         select DMA_NONCOHERENT
452         select IRQ_CPU
453         select MIPS_GIC
454         select LIBFDT
455         select MIPS_MSC
456         select SYS_HAS_CPU_MIPS32_R1
457         select SYS_HAS_CPU_MIPS32_R2
458         select SYS_HAS_CPU_MIPS64_R1
459         select SYS_HAS_EARLY_PRINTK
460         select SYS_SUPPORTS_32BIT_KERNEL
461         select SYS_SUPPORTS_64BIT_KERNEL
462         select SYS_SUPPORTS_BIG_ENDIAN
463         select SYS_SUPPORTS_LITTLE_ENDIAN
464         select SYS_SUPPORTS_SMARTMIPS
465         select SYS_SUPPORTS_MICROMIPS
466         select SYS_SUPPORTS_MIPS16
467         select USB_EHCI_BIG_ENDIAN_DESC
468         select USB_EHCI_BIG_ENDIAN_MMIO
469         select USE_OF
470         help
471           This enables support for the MIPS Technologies SEAD3 evaluation
472           board.
473 
474 config NEC_MARKEINS
475         bool "NEC EMMA2RH Mark-eins board"
476         select SOC_EMMA2RH
477         select HW_HAS_PCI
478         help
479           This enables support for the NEC Electronics Mark-eins boards.
480 
481 config MACH_VR41XX
482         bool "NEC VR4100 series based machines"
483         select CEVT_R4K
484         select CSRC_R4K
485         select SYS_HAS_CPU_VR41XX
486         select SYS_SUPPORTS_MIPS16
487         select ARCH_REQUIRE_GPIOLIB
488 
489 config NXP_STB220
490         bool "NXP STB220 board"
491         select SOC_PNX833X
492         help
493          Support for NXP Semiconductors STB220 Development Board.
494 
495 config NXP_STB225
496         bool "NXP 225 board"
497         select SOC_PNX833X
498         select SOC_PNX8335
499         help
500          Support for NXP Semiconductors STB225 Development Board.
501 
502 config PMC_MSP
503         bool "PMC-Sierra MSP chipsets"
504         select CEVT_R4K
505         select CSRC_R4K
506         select DMA_NONCOHERENT
507         select SWAP_IO_SPACE
508         select NO_EXCEPT_FILL
509         select BOOT_RAW
510         select SYS_HAS_CPU_MIPS32_R1
511         select SYS_HAS_CPU_MIPS32_R2
512         select SYS_SUPPORTS_32BIT_KERNEL
513         select SYS_SUPPORTS_BIG_ENDIAN
514         select SYS_SUPPORTS_MIPS16
515         select IRQ_CPU
516         select SERIAL_8250
517         select SERIAL_8250_CONSOLE
518         select USB_EHCI_BIG_ENDIAN_MMIO
519         select USB_EHCI_BIG_ENDIAN_DESC
520         help
521           This adds support for the PMC-Sierra family of Multi-Service
522           Processor System-On-A-Chips.  These parts include a number
523           of integrated peripherals, interfaces and DSPs in addition to
524           a variety of MIPS cores.
525 
526 config RALINK
527         bool "Ralink based machines"
528         select CEVT_R4K
529         select CSRC_R4K
530         select BOOT_RAW
531         select DMA_NONCOHERENT
532         select IRQ_CPU
533         select USE_OF
534         select SYS_HAS_CPU_MIPS32_R1
535         select SYS_HAS_CPU_MIPS32_R2
536         select SYS_SUPPORTS_32BIT_KERNEL
537         select SYS_SUPPORTS_LITTLE_ENDIAN
538         select SYS_SUPPORTS_MIPS16
539         select SYS_HAS_EARLY_PRINTK
540         select HAVE_MACH_CLKDEV
541         select CLKDEV_LOOKUP
542         select ARCH_HAS_RESET_CONTROLLER
543         select RESET_CONTROLLER
544 
545 config SGI_IP22
546         bool "SGI IP22 (Indy/Indigo2)"
547         select FW_ARC
548         select FW_ARC32
549         select BOOT_ELF32
550         select CEVT_R4K
551         select CSRC_R4K
552         select DEFAULT_SGI_PARTITION
553         select DMA_NONCOHERENT
554         select HW_HAS_EISA
555         select I8253
556         select I8259
557         select IP22_CPU_SCACHE
558         select IRQ_CPU
559         select GENERIC_ISA_DMA_SUPPORT_BROKEN
560         select SGI_HAS_I8042
561         select SGI_HAS_INDYDOG
562         select SGI_HAS_HAL2
563         select SGI_HAS_SEEQ
564         select SGI_HAS_WD93
565         select SGI_HAS_ZILOG
566         select SWAP_IO_SPACE
567         select SYS_HAS_CPU_R4X00
568         select SYS_HAS_CPU_R5000
569         #
570         # Disable EARLY_PRINTK for now since it leads to overwritten prom
571         # memory during early boot on some machines.
572         #
573         # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
574         # for a more details discussion
575         #
576         # select SYS_HAS_EARLY_PRINTK
577         select SYS_SUPPORTS_32BIT_KERNEL
578         select SYS_SUPPORTS_64BIT_KERNEL
579         select SYS_SUPPORTS_BIG_ENDIAN
580         select MIPS_L1_CACHE_SHIFT_7
581         help
582           This are the SGI Indy, Challenge S and Indigo2, as well as certain
583           OEM variants like the Tandem CMN B006S. To compile a Linux kernel
584           that runs on these, say Y here.
585 
586 config SGI_IP27
587         bool "SGI IP27 (Origin200/2000)"
588         select FW_ARC
589         select FW_ARC64
590         select BOOT_ELF64
591         select DEFAULT_SGI_PARTITION
592         select DMA_COHERENT
593         select SYS_HAS_EARLY_PRINTK
594         select HW_HAS_PCI
595         select NR_CPUS_DEFAULT_64
596         select SYS_HAS_CPU_R10000
597         select SYS_SUPPORTS_64BIT_KERNEL
598         select SYS_SUPPORTS_BIG_ENDIAN
599         select SYS_SUPPORTS_NUMA
600         select SYS_SUPPORTS_SMP
601         select MIPS_L1_CACHE_SHIFT_7
602         help
603           This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
604           workstations.  To compile a Linux kernel that runs on these, say Y
605           here.
606 
607 config SGI_IP28
608         bool "SGI IP28 (Indigo2 R10k)"
609         select FW_ARC
610         select FW_ARC64
611         select BOOT_ELF64
612         select CEVT_R4K
613         select CSRC_R4K
614         select DEFAULT_SGI_PARTITION
615         select DMA_NONCOHERENT
616         select GENERIC_ISA_DMA_SUPPORT_BROKEN
617         select IRQ_CPU
618         select HW_HAS_EISA
619         select I8253
620         select I8259
621         select SGI_HAS_I8042
622         select SGI_HAS_INDYDOG
623         select SGI_HAS_HAL2
624         select SGI_HAS_SEEQ
625         select SGI_HAS_WD93
626         select SGI_HAS_ZILOG
627         select SWAP_IO_SPACE
628         select SYS_HAS_CPU_R10000
629         #
630         # Disable EARLY_PRINTK for now since it leads to overwritten prom
631         # memory during early boot on some machines.
632         #
633         # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
634         # for a more details discussion
635         #
636         # select SYS_HAS_EARLY_PRINTK
637         select SYS_SUPPORTS_64BIT_KERNEL
638         select SYS_SUPPORTS_BIG_ENDIAN
639         select MIPS_L1_CACHE_SHIFT_7
640       help
641         This is the SGI Indigo2 with R10000 processor.  To compile a Linux
642         kernel that runs on these, say Y here.
643 
644 config SGI_IP32
645         bool "SGI IP32 (O2)"
646         select FW_ARC
647         select FW_ARC32
648         select BOOT_ELF32
649         select CEVT_R4K
650         select CSRC_R4K
651         select DMA_NONCOHERENT
652         select HW_HAS_PCI
653         select IRQ_CPU
654         select R5000_CPU_SCACHE
655         select RM7000_CPU_SCACHE
656         select SYS_HAS_CPU_R5000
657         select SYS_HAS_CPU_R10000 if BROKEN
658         select SYS_HAS_CPU_RM7000
659         select SYS_HAS_CPU_NEVADA
660         select SYS_SUPPORTS_64BIT_KERNEL
661         select SYS_SUPPORTS_BIG_ENDIAN
662         help
663           If you want this kernel to run on SGI O2 workstation, say Y here.
664 
665 config SIBYTE_CRHINE
666         bool "Sibyte BCM91120C-CRhine"
667         select BOOT_ELF32
668         select DMA_COHERENT
669         select SIBYTE_BCM1120
670         select SWAP_IO_SPACE
671         select SYS_HAS_CPU_SB1
672         select SYS_SUPPORTS_BIG_ENDIAN
673         select SYS_SUPPORTS_LITTLE_ENDIAN
674 
675 config SIBYTE_CARMEL
676         bool "Sibyte BCM91120x-Carmel"
677         select BOOT_ELF32
678         select DMA_COHERENT
679         select SIBYTE_BCM1120
680         select SWAP_IO_SPACE
681         select SYS_HAS_CPU_SB1
682         select SYS_SUPPORTS_BIG_ENDIAN
683         select SYS_SUPPORTS_LITTLE_ENDIAN
684 
685 config SIBYTE_CRHONE
686         bool "Sibyte BCM91125C-CRhone"
687         select BOOT_ELF32
688         select DMA_COHERENT
689         select SIBYTE_BCM1125
690         select SWAP_IO_SPACE
691         select SYS_HAS_CPU_SB1
692         select SYS_SUPPORTS_BIG_ENDIAN
693         select SYS_SUPPORTS_HIGHMEM
694         select SYS_SUPPORTS_LITTLE_ENDIAN
695 
696 config SIBYTE_RHONE
697         bool "Sibyte BCM91125E-Rhone"
698         select BOOT_ELF32
699         select DMA_COHERENT
700         select SIBYTE_BCM1125H
701         select SWAP_IO_SPACE
702         select SYS_HAS_CPU_SB1
703         select SYS_SUPPORTS_BIG_ENDIAN
704         select SYS_SUPPORTS_LITTLE_ENDIAN
705 
706 config SIBYTE_SWARM
707         bool "Sibyte BCM91250A-SWARM"
708         select BOOT_ELF32
709         select DMA_COHERENT
710         select HAVE_PATA_PLATFORM
711         select SIBYTE_SB1250
712         select SWAP_IO_SPACE
713         select SYS_HAS_CPU_SB1
714         select SYS_SUPPORTS_BIG_ENDIAN
715         select SYS_SUPPORTS_HIGHMEM
716         select SYS_SUPPORTS_LITTLE_ENDIAN
717         select ZONE_DMA32 if 64BIT
718 
719 config SIBYTE_LITTLESUR
720         bool "Sibyte BCM91250C2-LittleSur"
721         select BOOT_ELF32
722         select DMA_COHERENT
723         select HAVE_PATA_PLATFORM
724         select SIBYTE_SB1250
725         select SWAP_IO_SPACE
726         select SYS_HAS_CPU_SB1
727         select SYS_SUPPORTS_BIG_ENDIAN
728         select SYS_SUPPORTS_HIGHMEM
729         select SYS_SUPPORTS_LITTLE_ENDIAN
730 
731 config SIBYTE_SENTOSA
732         bool "Sibyte BCM91250E-Sentosa"
733         select BOOT_ELF32
734         select DMA_COHERENT
735         select SIBYTE_SB1250
736         select SWAP_IO_SPACE
737         select SYS_HAS_CPU_SB1
738         select SYS_SUPPORTS_BIG_ENDIAN
739         select SYS_SUPPORTS_LITTLE_ENDIAN
740 
741 config SIBYTE_BIGSUR
742         bool "Sibyte BCM91480B-BigSur"
743         select BOOT_ELF32
744         select DMA_COHERENT
745         select NR_CPUS_DEFAULT_4
746         select SIBYTE_BCM1x80
747         select SWAP_IO_SPACE
748         select SYS_HAS_CPU_SB1
749         select SYS_SUPPORTS_BIG_ENDIAN
750         select SYS_SUPPORTS_HIGHMEM
751         select SYS_SUPPORTS_LITTLE_ENDIAN
752         select ZONE_DMA32 if 64BIT
753 
754 config SNI_RM
755         bool "SNI RM200/300/400"
756         select FW_ARC if CPU_LITTLE_ENDIAN
757         select FW_ARC32 if CPU_LITTLE_ENDIAN
758         select FW_SNIPROM if CPU_BIG_ENDIAN
759         select ARCH_MAY_HAVE_PC_FDC
760         select BOOT_ELF32
761         select CEVT_R4K
762         select CSRC_R4K
763         select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
764         select DMA_NONCOHERENT
765         select GENERIC_ISA_DMA
766         select HAVE_PCSPKR_PLATFORM
767         select HW_HAS_EISA
768         select HW_HAS_PCI
769         select IRQ_CPU
770         select I8253
771         select I8259
772         select ISA
773         select SWAP_IO_SPACE if CPU_BIG_ENDIAN
774         select SYS_HAS_CPU_R4X00
775         select SYS_HAS_CPU_R5000
776         select SYS_HAS_CPU_R10000
777         select R5000_CPU_SCACHE
778         select SYS_HAS_EARLY_PRINTK
779         select SYS_SUPPORTS_32BIT_KERNEL
780         select SYS_SUPPORTS_64BIT_KERNEL
781         select SYS_SUPPORTS_BIG_ENDIAN
782         select SYS_SUPPORTS_HIGHMEM
783         select SYS_SUPPORTS_LITTLE_ENDIAN
784         help
785           The SNI RM200/300/400 are MIPS-based machines manufactured by
786           Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
787           Technology and now in turn merged with Fujitsu.  Say Y here to
788           support this machine type.
789 
790 config MACH_TX39XX
791         bool "Toshiba TX39 series based machines"
792 
793 config MACH_TX49XX
794         bool "Toshiba TX49 series based machines"
795 
796 config MIKROTIK_RB532
797         bool "Mikrotik RB532 boards"
798         select CEVT_R4K
799         select CSRC_R4K
800         select DMA_NONCOHERENT
801         select HW_HAS_PCI
802         select IRQ_CPU
803         select SYS_HAS_CPU_MIPS32_R1
804         select SYS_SUPPORTS_32BIT_KERNEL
805         select SYS_SUPPORTS_LITTLE_ENDIAN
806         select SWAP_IO_SPACE
807         select BOOT_RAW
808         select ARCH_REQUIRE_GPIOLIB
809         select MIPS_L1_CACHE_SHIFT_4
810         help
811           Support the Mikrotik(tm) RouterBoard 532 series,
812           based on the IDT RC32434 SoC.
813 
814 config CAVIUM_OCTEON_SOC
815         bool "Cavium Networks Octeon SoC based boards"
816         select CEVT_R4K
817         select ARCH_PHYS_ADDR_T_64BIT
818         select DMA_COHERENT
819         select SYS_SUPPORTS_64BIT_KERNEL
820         select SYS_SUPPORTS_BIG_ENDIAN
821         select EDAC_SUPPORT
822         select SYS_SUPPORTS_LITTLE_ENDIAN
823         select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
824         select SYS_HAS_EARLY_PRINTK
825         select SYS_HAS_CPU_CAVIUM_OCTEON
826         select SWAP_IO_SPACE
827         select HW_HAS_PCI
828         select ZONE_DMA32
829         select HOLES_IN_ZONE
830         select ARCH_REQUIRE_GPIOLIB
831         select LIBFDT
832         select USE_OF
833         select ARCH_SPARSEMEM_ENABLE
834         select SYS_SUPPORTS_SMP
835         select NR_CPUS_DEFAULT_16
836         select BUILTIN_DTB
837         select MTD_COMPLEX_MAPPINGS
838         help
839           This option supports all of the Octeon reference boards from Cavium
840           Networks. It builds a kernel that dynamically determines the Octeon
841           CPU type and supports all known board reference implementations.
842           Some of the supported boards are:
843                 EBT3000
844                 EBH3000
845                 EBH3100
846                 Thunder
847                 Kodama
848                 Hikari
849           Say Y here for most Octeon reference boards.
850 
851 config NLM_XLR_BOARD
852         bool "Netlogic XLR/XLS based systems"
853         select BOOT_ELF32
854         select NLM_COMMON
855         select SYS_HAS_CPU_XLR
856         select SYS_SUPPORTS_SMP
857         select HW_HAS_PCI
858         select SWAP_IO_SPACE
859         select SYS_SUPPORTS_32BIT_KERNEL
860         select SYS_SUPPORTS_64BIT_KERNEL
861         select ARCH_PHYS_ADDR_T_64BIT
862         select SYS_SUPPORTS_BIG_ENDIAN
863         select SYS_SUPPORTS_HIGHMEM
864         select DMA_COHERENT
865         select NR_CPUS_DEFAULT_32
866         select CEVT_R4K
867         select CSRC_R4K
868         select IRQ_CPU
869         select ZONE_DMA32 if 64BIT
870         select SYNC_R4K
871         select SYS_HAS_EARLY_PRINTK
872         select SYS_SUPPORTS_ZBOOT
873         select SYS_SUPPORTS_ZBOOT_UART16550
874         help
875           Support for systems based on Netlogic XLR and XLS processors.
876           Say Y here if you have a XLR or XLS based board.
877 
878 config NLM_XLP_BOARD
879         bool "Netlogic XLP based systems"
880         select BOOT_ELF32
881         select NLM_COMMON
882         select SYS_HAS_CPU_XLP
883         select SYS_SUPPORTS_SMP
884         select HW_HAS_PCI
885         select SYS_SUPPORTS_32BIT_KERNEL
886         select SYS_SUPPORTS_64BIT_KERNEL
887         select ARCH_PHYS_ADDR_T_64BIT
888         select SYS_SUPPORTS_BIG_ENDIAN
889         select SYS_SUPPORTS_LITTLE_ENDIAN
890         select SYS_SUPPORTS_HIGHMEM
891         select DMA_COHERENT
892         select NR_CPUS_DEFAULT_32
893         select CEVT_R4K
894         select CSRC_R4K
895         select IRQ_CPU
896         select ZONE_DMA32 if 64BIT
897         select SYNC_R4K
898         select SYS_HAS_EARLY_PRINTK
899         select USE_OF
900         select SYS_SUPPORTS_ZBOOT
901         select SYS_SUPPORTS_ZBOOT_UART16550
902         help
903           This board is based on Netlogic XLP Processor.
904           Say Y here if you have a XLP based board.
905 
906 config MIPS_PARAVIRT
907         bool "Para-Virtualized guest system"
908         select CEVT_R4K
909         select CSRC_R4K
910         select DMA_COHERENT
911         select SYS_SUPPORTS_64BIT_KERNEL
912         select SYS_SUPPORTS_32BIT_KERNEL
913         select SYS_SUPPORTS_BIG_ENDIAN
914         select SYS_SUPPORTS_SMP
915         select NR_CPUS_DEFAULT_4
916         select SYS_HAS_EARLY_PRINTK
917         select SYS_HAS_CPU_MIPS32_R2
918         select SYS_HAS_CPU_MIPS64_R2
919         select SYS_HAS_CPU_CAVIUM_OCTEON
920         select HW_HAS_PCI
921         select SWAP_IO_SPACE
922         help
923           This option supports guest running under ????
924 
925 endchoice
926 
927 source "arch/mips/alchemy/Kconfig"
928 source "arch/mips/ath25/Kconfig"
929 source "arch/mips/ath79/Kconfig"
930 source "arch/mips/bcm47xx/Kconfig"
931 source "arch/mips/bcm63xx/Kconfig"
932 source "arch/mips/bmips/Kconfig"
933 source "arch/mips/jazz/Kconfig"
934 source "arch/mips/jz4740/Kconfig"
935 source "arch/mips/lantiq/Kconfig"
936 source "arch/mips/lasat/Kconfig"
937 source "arch/mips/pmcs-msp71xx/Kconfig"
938 source "arch/mips/ralink/Kconfig"
939 source "arch/mips/sgi-ip27/Kconfig"
940 source "arch/mips/sibyte/Kconfig"
941 source "arch/mips/txx9/Kconfig"
942 source "arch/mips/vr41xx/Kconfig"
943 source "arch/mips/cavium-octeon/Kconfig"
944 source "arch/mips/loongson/Kconfig"
945 source "arch/mips/loongson1/Kconfig"
946 source "arch/mips/netlogic/Kconfig"
947 source "arch/mips/paravirt/Kconfig"
948 
949 endmenu
950 
951 config RWSEM_GENERIC_SPINLOCK
952         bool
953         default y
954 
955 config RWSEM_XCHGADD_ALGORITHM
956         bool
957 
958 config ARCH_HAS_ILOG2_U32
959         bool
960         default n
961 
962 config ARCH_HAS_ILOG2_U64
963         bool
964         default n
965 
966 config GENERIC_HWEIGHT
967         bool
968         default y
969 
970 config GENERIC_CALIBRATE_DELAY
971         bool
972         default y
973 
974 config SCHED_OMIT_FRAME_POINTER
975         bool
976         default y
977 
978 #
979 # Select some configuration options automatically based on user selections.
980 #
981 config FW_ARC
982         bool
983 
984 config ARCH_MAY_HAVE_PC_FDC
985         bool
986 
987 config BOOT_RAW
988         bool
989 
990 config CEVT_BCM1480
991         bool
992 
993 config CEVT_DS1287
994         bool
995 
996 config CEVT_GT641XX
997         bool
998 
999 config CEVT_R4K
1000         bool
1001 
1002 config CEVT_SB1250
1003         bool
1004 
1005 config CEVT_TXX9
1006         bool
1007 
1008 config CSRC_BCM1480
1009         bool
1010 
1011 config CSRC_IOASIC
1012         bool
1013 
1014 config CSRC_R4K
1015         bool
1016 
1017 config CSRC_SB1250
1018         bool
1019 
1020 config GPIO_TXX9
1021         select ARCH_REQUIRE_GPIOLIB
1022         bool
1023 
1024 config FW_CFE
1025         bool
1026 
1027 config ARCH_DMA_ADDR_T_64BIT
1028         def_bool (HIGHMEM && ARCH_PHYS_ADDR_T_64BIT) || 64BIT
1029 
1030 config DMA_MAYBE_COHERENT
1031         select DMA_NONCOHERENT
1032         bool
1033 
1034 config DMA_COHERENT
1035         bool
1036 
1037 config DMA_NONCOHERENT
1038         bool
1039         select NEED_DMA_MAP_STATE
1040 
1041 config NEED_DMA_MAP_STATE
1042         bool
1043 
1044 config SYS_HAS_EARLY_PRINTK
1045         bool
1046 
1047 config HOTPLUG_CPU
1048         bool "Support for hot-pluggable CPUs"
1049         depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
1050         help
1051           Say Y here to allow turning CPUs off and on. CPUs can be
1052           controlled through /sys/devices/system/cpu.
1053           (Note: power management support will enable this option
1054             automatically on SMP systems. )
1055           Say N if you want to disable CPU hotplug.
1056 
1057 config SYS_SUPPORTS_HOTPLUG_CPU
1058         bool
1059 
1060 config I8259
1061         bool
1062         select IRQ_DOMAIN
1063 
1064 config MIPS_BONITO64
1065         bool
1066 
1067 config MIPS_MSC
1068         bool
1069 
1070 config MIPS_NILE4
1071         bool
1072 
1073 config SYNC_R4K
1074         bool
1075 
1076 config MIPS_MACHINE
1077         def_bool n
1078 
1079 config NO_IOPORT_MAP
1080         def_bool n
1081 
1082 config GENERIC_CSUM
1083         bool
1084 
1085 config GENERIC_ISA_DMA
1086         bool
1087         select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1088         select ISA_DMA_API
1089 
1090 config GENERIC_ISA_DMA_SUPPORT_BROKEN
1091         bool
1092         select GENERIC_ISA_DMA
1093 
1094 config ISA_DMA_API
1095         bool
1096 
1097 config HOLES_IN_ZONE
1098         bool
1099 
1100 #
1101 # Endianness selection.  Sufficiently obscure so many users don't know what to
1102 # answer,so we try hard to limit the available choices.  Also the use of a
1103 # choice statement should be more obvious to the user.
1104 #
1105 choice
1106         prompt "Endianness selection"
1107         help
1108           Some MIPS machines can be configured for either little or big endian
1109           byte order. These modes require different kernels and a different
1110           Linux distribution.  In general there is one preferred byteorder for a
1111           particular system but some systems are just as commonly used in the
1112           one or the other endianness.
1113 
1114 config CPU_BIG_ENDIAN
1115         bool "Big endian"
1116         depends on SYS_SUPPORTS_BIG_ENDIAN
1117 
1118 config CPU_LITTLE_ENDIAN
1119         bool "Little endian"
1120         depends on SYS_SUPPORTS_LITTLE_ENDIAN
1121 
1122 endchoice
1123 
1124 config EXPORT_UASM
1125         bool
1126 
1127 config SYS_SUPPORTS_APM_EMULATION
1128         bool
1129 
1130 config SYS_SUPPORTS_BIG_ENDIAN
1131         bool
1132 
1133 config SYS_SUPPORTS_LITTLE_ENDIAN
1134         bool
1135 
1136 config SYS_SUPPORTS_HUGETLBFS
1137         bool
1138         depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1139         default y
1140 
1141 config MIPS_HUGE_TLB_SUPPORT
1142         def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1143 
1144 config IRQ_CPU
1145         bool
1146         select IRQ_DOMAIN
1147 
1148 config IRQ_CPU_RM7K
1149         bool
1150 
1151 config IRQ_MSP_SLP
1152         bool
1153 
1154 config IRQ_MSP_CIC
1155         bool
1156 
1157 config IRQ_TXX9
1158         bool
1159 
1160 config IRQ_GT641XX
1161         bool
1162 
1163 config PCI_GT64XXX_PCI0
1164         bool
1165 
1166 config NO_EXCEPT_FILL
1167         bool
1168 
1169 config SOC_EMMA2RH
1170         bool
1171         select CEVT_R4K
1172         select CSRC_R4K
1173         select DMA_NONCOHERENT
1174         select IRQ_CPU
1175         select SWAP_IO_SPACE
1176         select SYS_HAS_CPU_R5500
1177         select SYS_SUPPORTS_32BIT_KERNEL
1178         select SYS_SUPPORTS_64BIT_KERNEL
1179         select SYS_SUPPORTS_BIG_ENDIAN
1180 
1181 config SOC_PNX833X
1182         bool
1183         select CEVT_R4K
1184         select CSRC_R4K
1185         select IRQ_CPU
1186         select DMA_NONCOHERENT
1187         select SYS_HAS_CPU_MIPS32_R2
1188         select SYS_SUPPORTS_32BIT_KERNEL
1189         select SYS_SUPPORTS_LITTLE_ENDIAN
1190         select SYS_SUPPORTS_BIG_ENDIAN
1191         select SYS_SUPPORTS_MIPS16
1192         select CPU_MIPSR2_IRQ_VI
1193 
1194 config SOC_PNX8335
1195         bool
1196         select SOC_PNX833X
1197 
1198 config MIPS_SPRAM
1199         bool
1200 
1201 config SWAP_IO_SPACE
1202         bool
1203 
1204 config SGI_HAS_INDYDOG
1205         bool
1206 
1207 config SGI_HAS_HAL2
1208         bool
1209 
1210 config SGI_HAS_SEEQ
1211         bool
1212 
1213 config SGI_HAS_WD93
1214         bool
1215 
1216 config SGI_HAS_ZILOG
1217         bool
1218 
1219 config SGI_HAS_I8042
1220         bool
1221 
1222 config DEFAULT_SGI_PARTITION
1223         bool
1224 
1225 config FW_ARC32
1226         bool
1227 
1228 config FW_SNIPROM
1229         bool
1230 
1231 config BOOT_ELF32
1232         bool
1233 
1234 config MIPS_L1_CACHE_SHIFT_4
1235         bool
1236 
1237 config MIPS_L1_CACHE_SHIFT_5
1238         bool
1239 
1240 config MIPS_L1_CACHE_SHIFT_6
1241         bool
1242 
1243 config MIPS_L1_CACHE_SHIFT_7
1244         bool
1245 
1246 config MIPS_L1_CACHE_SHIFT
1247         int
1248         default "7" if MIPS_L1_CACHE_SHIFT_7
1249         default "6" if MIPS_L1_CACHE_SHIFT_6
1250         default "5" if MIPS_L1_CACHE_SHIFT_5
1251         default "4" if MIPS_L1_CACHE_SHIFT_4
1252         default "5"
1253 
1254 config HAVE_STD_PC_SERIAL_PORT
1255         bool
1256 
1257 config ARC_CONSOLE
1258         bool "ARC console support"
1259         depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1260 
1261 config ARC_MEMORY
1262         bool
1263         depends on MACH_JAZZ || SNI_RM || SGI_IP32
1264         default y
1265 
1266 config ARC_PROMLIB
1267         bool
1268         depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1269         default y
1270 
1271 config FW_ARC64
1272         bool
1273 
1274 config BOOT_ELF64
1275         bool
1276 
1277 menu "CPU selection"
1278 
1279 choice
1280         prompt "CPU type"
1281         default CPU_R4X00
1282 
1283 config CPU_LOONGSON3
1284         bool "Loongson 3 CPU"
1285         depends on SYS_HAS_CPU_LOONGSON3
1286         select CPU_SUPPORTS_64BIT_KERNEL
1287         select CPU_SUPPORTS_HIGHMEM
1288         select CPU_SUPPORTS_HUGEPAGES
1289         select WEAK_ORDERING
1290         select WEAK_REORDERING_BEYOND_LLSC
1291         select ARCH_REQUIRE_GPIOLIB
1292         help
1293                 The Loongson 3 processor implements the MIPS64R2 instruction
1294                 set with many extensions.
1295 
1296 config CPU_LOONGSON2E
1297         bool "Loongson 2E"
1298         depends on SYS_HAS_CPU_LOONGSON2E
1299         select CPU_LOONGSON2
1300         help
1301           The Loongson 2E processor implements the MIPS III instruction set
1302           with many extensions.
1303 
1304           It has an internal FPGA northbridge, which is compatible to
1305           bonito64.
1306 
1307 config CPU_LOONGSON2F
1308         bool "Loongson 2F"
1309         depends on SYS_HAS_CPU_LOONGSON2F
1310         select CPU_LOONGSON2
1311         select ARCH_REQUIRE_GPIOLIB
1312         help
1313           The Loongson 2F processor implements the MIPS III instruction set
1314           with many extensions.
1315 
1316           Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1317           have a similar programming interface with FPGA northbridge used in
1318           Loongson2E.
1319 
1320 config CPU_LOONGSON1B
1321         bool "Loongson 1B"
1322         depends on SYS_HAS_CPU_LOONGSON1B
1323         select CPU_LOONGSON1
1324         help
1325           The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1326           release 2 instruction set.
1327 
1328 config CPU_MIPS32_R1
1329         bool "MIPS32 Release 1"
1330         depends on SYS_HAS_CPU_MIPS32_R1
1331         select CPU_HAS_PREFETCH
1332         select CPU_SUPPORTS_32BIT_KERNEL
1333         select CPU_SUPPORTS_HIGHMEM
1334         help
1335           Choose this option to build a kernel for release 1 or later of the
1336           MIPS32 architecture.  Most modern embedded systems with a 32-bit
1337           MIPS processor are based on a MIPS32 processor.  If you know the
1338           specific type of processor in your system, choose those that one
1339           otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1340           Release 2 of the MIPS32 architecture is available since several
1341           years so chances are you even have a MIPS32 Release 2 processor
1342           in which case you should choose CPU_MIPS32_R2 instead for better
1343           performance.
1344 
1345 config CPU_MIPS32_R2
1346         bool "MIPS32 Release 2"
1347         depends on SYS_HAS_CPU_MIPS32_R2
1348         select CPU_HAS_PREFETCH
1349         select CPU_SUPPORTS_32BIT_KERNEL
1350         select CPU_SUPPORTS_HIGHMEM
1351         select CPU_SUPPORTS_MSA
1352         select HAVE_KVM
1353         help
1354           Choose this option to build a kernel for release 2 or later of the
1355           MIPS32 architecture.  Most modern embedded systems with a 32-bit
1356           MIPS processor are based on a MIPS32 processor.  If you know the
1357           specific type of processor in your system, choose those that one
1358           otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1359 
1360 config CPU_MIPS32_R6
1361         bool "MIPS32 Release 6 (EXPERIMENTAL)"
1362         depends on SYS_HAS_CPU_MIPS32_R6
1363         select CPU_HAS_PREFETCH
1364         select CPU_SUPPORTS_32BIT_KERNEL
1365         select CPU_SUPPORTS_HIGHMEM
1366         select CPU_SUPPORTS_MSA
1367         select GENERIC_CSUM
1368         select HAVE_KVM
1369         select MIPS_O32_FP64_SUPPORT
1370         help
1371           Choose this option to build a kernel for release 6 or later of the
1372           MIPS32 architecture.  New MIPS processors, starting with the Warrior
1373           family, are based on a MIPS32r6 processor. If you own an older
1374           processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1375 
1376 config CPU_MIPS64_R1
1377         bool "MIPS64 Release 1"
1378         depends on SYS_HAS_CPU_MIPS64_R1
1379         select CPU_HAS_PREFETCH
1380         select CPU_SUPPORTS_32BIT_KERNEL
1381         select CPU_SUPPORTS_64BIT_KERNEL
1382         select CPU_SUPPORTS_HIGHMEM
1383         select CPU_SUPPORTS_HUGEPAGES
1384         help
1385           Choose this option to build a kernel for release 1 or later of the
1386           MIPS64 architecture.  Many modern embedded systems with a 64-bit
1387           MIPS processor are based on a MIPS64 processor.  If you know the
1388           specific type of processor in your system, choose those that one
1389           otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1390           Release 2 of the MIPS64 architecture is available since several
1391           years so chances are you even have a MIPS64 Release 2 processor
1392           in which case you should choose CPU_MIPS64_R2 instead for better
1393           performance.
1394 
1395 config CPU_MIPS64_R2
1396         bool "MIPS64 Release 2"
1397         depends on SYS_HAS_CPU_MIPS64_R2
1398         select CPU_HAS_PREFETCH
1399         select CPU_SUPPORTS_32BIT_KERNEL
1400         select CPU_SUPPORTS_64BIT_KERNEL
1401         select CPU_SUPPORTS_HIGHMEM
1402         select CPU_SUPPORTS_HUGEPAGES
1403         select CPU_SUPPORTS_MSA
1404         help
1405           Choose this option to build a kernel for release 2 or later of the
1406           MIPS64 architecture.  Many modern embedded systems with a 64-bit
1407           MIPS processor are based on a MIPS64 processor.  If you know the
1408           specific type of processor in your system, choose those that one
1409           otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1410 
1411 config CPU_MIPS64_R6
1412         bool "MIPS64 Release 6 (EXPERIMENTAL)"
1413         depends on SYS_HAS_CPU_MIPS64_R6
1414         select CPU_HAS_PREFETCH
1415         select CPU_SUPPORTS_32BIT_KERNEL
1416         select CPU_SUPPORTS_64BIT_KERNEL
1417         select CPU_SUPPORTS_HIGHMEM
1418         select CPU_SUPPORTS_MSA
1419         select GENERIC_CSUM
1420         help
1421           Choose this option to build a kernel for release 6 or later of the
1422           MIPS64 architecture.  New MIPS processors, starting with the Warrior
1423           family, are based on a MIPS64r6 processor. If you own an older
1424           processor, you probably need to select MIPS64r1 or MIPS64r2 instead.
1425 
1426 config CPU_R3000
1427         bool "R3000"
1428         depends on SYS_HAS_CPU_R3000
1429         select CPU_HAS_WB
1430         select CPU_SUPPORTS_32BIT_KERNEL
1431         select CPU_SUPPORTS_HIGHMEM
1432         help
1433           Please make sure to pick the right CPU type. Linux/MIPS is not
1434           designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1435           *not* work on R4000 machines and vice versa.  However, since most
1436           of the supported machines have an R4000 (or similar) CPU, R4x00
1437           might be a safe bet.  If the resulting kernel does not work,
1438           try to recompile with R3000.
1439 
1440 config CPU_TX39XX
1441         bool "R39XX"
1442         depends on SYS_HAS_CPU_TX39XX
1443         select CPU_SUPPORTS_32BIT_KERNEL
1444 
1445 config CPU_VR41XX
1446         bool "R41xx"
1447         depends on SYS_HAS_CPU_VR41XX
1448         select CPU_SUPPORTS_32BIT_KERNEL
1449         select CPU_SUPPORTS_64BIT_KERNEL
1450         help
1451           The options selects support for the NEC VR4100 series of processors.
1452           Only choose this option if you have one of these processors as a
1453           kernel built with this option will not run on any other type of
1454           processor or vice versa.
1455 
1456 config CPU_R4300
1457         bool "R4300"
1458         depends on SYS_HAS_CPU_R4300
1459         select CPU_SUPPORTS_32BIT_KERNEL
1460         select CPU_SUPPORTS_64BIT_KERNEL
1461         help
1462           MIPS Technologies R4300-series processors.
1463 
1464 config CPU_R4X00
1465         bool "R4x00"
1466         depends on SYS_HAS_CPU_R4X00
1467         select CPU_SUPPORTS_32BIT_KERNEL
1468         select CPU_SUPPORTS_64BIT_KERNEL
1469         select CPU_SUPPORTS_HUGEPAGES
1470         help
1471           MIPS Technologies R4000-series processors other than 4300, including
1472           the R4000, R4400, R4600, and 4700.
1473 
1474 config CPU_TX49XX
1475         bool "R49XX"
1476         depends on SYS_HAS_CPU_TX49XX
1477         select CPU_HAS_PREFETCH
1478         select CPU_SUPPORTS_32BIT_KERNEL
1479         select CPU_SUPPORTS_64BIT_KERNEL
1480         select CPU_SUPPORTS_HUGEPAGES
1481 
1482 config CPU_R5000
1483         bool "R5000"
1484         depends on SYS_HAS_CPU_R5000
1485         select CPU_SUPPORTS_32BIT_KERNEL
1486         select CPU_SUPPORTS_64BIT_KERNEL
1487         select CPU_SUPPORTS_HUGEPAGES
1488         help
1489           MIPS Technologies R5000-series processors other than the Nevada.
1490 
1491 config CPU_R5432
1492         bool "R5432"
1493         depends on SYS_HAS_CPU_R5432
1494         select CPU_SUPPORTS_32BIT_KERNEL
1495         select CPU_SUPPORTS_64BIT_KERNEL
1496         select CPU_SUPPORTS_HUGEPAGES
1497 
1498 config CPU_R5500
1499         bool "R5500"
1500         depends on SYS_HAS_CPU_R5500
1501         select CPU_SUPPORTS_32BIT_KERNEL
1502         select CPU_SUPPORTS_64BIT_KERNEL
1503         select CPU_SUPPORTS_HUGEPAGES
1504         help
1505           NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1506           instruction set.
1507 
1508 config CPU_R6000
1509         bool "R6000"
1510         depends on SYS_HAS_CPU_R6000
1511         select CPU_SUPPORTS_32BIT_KERNEL
1512         help
1513           MIPS Technologies R6000 and R6000A series processors.  Note these
1514           processors are extremely rare and the support for them is incomplete.
1515 
1516 config CPU_NEVADA
1517         bool "RM52xx"
1518         depends on SYS_HAS_CPU_NEVADA
1519         select CPU_SUPPORTS_32BIT_KERNEL
1520         select CPU_SUPPORTS_64BIT_KERNEL
1521         select CPU_SUPPORTS_HUGEPAGES
1522         help
1523           QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1524 
1525 config CPU_R8000
1526         bool "R8000"
1527         depends on SYS_HAS_CPU_R8000
1528         select CPU_HAS_PREFETCH
1529         select CPU_SUPPORTS_64BIT_KERNEL
1530         help
1531           MIPS Technologies R8000 processors.  Note these processors are
1532           uncommon and the support for them is incomplete.
1533 
1534 config CPU_R10000
1535         bool "R10000"
1536         depends on SYS_HAS_CPU_R10000
1537         select CPU_HAS_PREFETCH
1538         select CPU_SUPPORTS_32BIT_KERNEL
1539         select CPU_SUPPORTS_64BIT_KERNEL
1540         select CPU_SUPPORTS_HIGHMEM
1541         select CPU_SUPPORTS_HUGEPAGES
1542         help
1543           MIPS Technologies R10000-series processors.
1544 
1545 config CPU_RM7000
1546         bool "RM7000"
1547         depends on SYS_HAS_CPU_RM7000
1548         select CPU_HAS_PREFETCH
1549         select CPU_SUPPORTS_32BIT_KERNEL
1550         select CPU_SUPPORTS_64BIT_KERNEL
1551         select CPU_SUPPORTS_HIGHMEM
1552         select CPU_SUPPORTS_HUGEPAGES
1553 
1554 config CPU_SB1
1555         bool "SB1"
1556         depends on SYS_HAS_CPU_SB1
1557         select CPU_SUPPORTS_32BIT_KERNEL
1558         select CPU_SUPPORTS_64BIT_KERNEL
1559         select CPU_SUPPORTS_HIGHMEM
1560         select CPU_SUPPORTS_HUGEPAGES
1561         select WEAK_ORDERING
1562 
1563 config CPU_CAVIUM_OCTEON
1564         bool "Cavium Octeon processor"
1565         depends on SYS_HAS_CPU_CAVIUM_OCTEON
1566         select CPU_HAS_PREFETCH
1567         select CPU_SUPPORTS_64BIT_KERNEL
1568         select WEAK_ORDERING
1569         select CPU_SUPPORTS_HIGHMEM
1570         select CPU_SUPPORTS_HUGEPAGES
1571         select USB_EHCI_BIG_ENDIAN_MMIO
1572         select MIPS_L1_CACHE_SHIFT_7
1573         help
1574           The Cavium Octeon processor is a highly integrated chip containing
1575           many ethernet hardware widgets for networking tasks. The processor
1576           can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1577           Full details can be found at http://www.caviumnetworks.com.
1578 
1579 config CPU_BMIPS
1580         bool "Broadcom BMIPS"
1581         depends on SYS_HAS_CPU_BMIPS
1582         select CPU_MIPS32
1583         select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1584         select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1585         select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1586         select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1587         select CPU_SUPPORTS_32BIT_KERNEL
1588         select DMA_NONCOHERENT
1589         select IRQ_CPU
1590         select SWAP_IO_SPACE
1591         select WEAK_ORDERING
1592         select CPU_SUPPORTS_HIGHMEM
1593         select CPU_HAS_PREFETCH
1594         help
1595           Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1596 
1597 config CPU_XLR
1598         bool "Netlogic XLR SoC"
1599         depends on SYS_HAS_CPU_XLR
1600         select CPU_SUPPORTS_32BIT_KERNEL
1601         select CPU_SUPPORTS_64BIT_KERNEL
1602         select CPU_SUPPORTS_HIGHMEM
1603         select CPU_SUPPORTS_HUGEPAGES
1604         select WEAK_ORDERING
1605         select WEAK_REORDERING_BEYOND_LLSC
1606         help
1607           Netlogic Microsystems XLR/XLS processors.
1608 
1609 config CPU_XLP
1610         bool "Netlogic XLP SoC"
1611         depends on SYS_HAS_CPU_XLP
1612         select CPU_SUPPORTS_32BIT_KERNEL
1613         select CPU_SUPPORTS_64BIT_KERNEL
1614         select CPU_SUPPORTS_HIGHMEM
1615         select WEAK_ORDERING
1616         select WEAK_REORDERING_BEYOND_LLSC
1617         select CPU_HAS_PREFETCH
1618         select CPU_MIPSR2
1619         select CPU_SUPPORTS_HUGEPAGES
1620         help
1621           Netlogic Microsystems XLP processors.
1622 endchoice
1623 
1624 config CPU_MIPS32_3_5_FEATURES
1625         bool "MIPS32 Release 3.5 Features"
1626         depends on SYS_HAS_CPU_MIPS32_R3_5
1627         depends on CPU_MIPS32_R2 || CPU_MIPS32_R6
1628         help
1629           Choose this option to build a kernel for release 2 or later of the
1630           MIPS32 architecture including features from the 3.5 release such as
1631           support for Enhanced Virtual Addressing (EVA).
1632 
1633 config CPU_MIPS32_3_5_EVA
1634         bool "Enhanced Virtual Addressing (EVA)"
1635         depends on CPU_MIPS32_3_5_FEATURES
1636         select EVA
1637         default y
1638         help
1639           Choose this option if you want to enable the Enhanced Virtual
1640           Addressing (EVA) on your MIPS32 core (such as proAptiv).
1641           One of its primary benefits is an increase in the maximum size
1642           of lowmem (up to 3GB). If unsure, say 'N' here.
1643 
1644 config CPU_MIPS32_R5_FEATURES
1645         bool "MIPS32 Release 5 Features"
1646         depends on SYS_HAS_CPU_MIPS32_R5
1647         depends on CPU_MIPS32_R2
1648         help
1649           Choose this option to build a kernel for release 2 or later of the
1650           MIPS32 architecture including features from release 5 such as
1651           support for Extended Physical Addressing (XPA).
1652 
1653 config CPU_MIPS32_R5_XPA
1654         bool "Extended Physical Addressing (XPA)"
1655         depends on CPU_MIPS32_R5_FEATURES
1656         depends on !EVA
1657         depends on !PAGE_SIZE_4KB
1658         depends on SYS_SUPPORTS_HIGHMEM
1659         select XPA
1660         select HIGHMEM
1661         select ARCH_PHYS_ADDR_T_64BIT
1662         default n
1663         help
1664           Choose this option if you want to enable the Extended Physical
1665           Addressing (XPA) on your MIPS32 core (such as P5600 series). The
1666           benefit is to increase physical addressing equal to or greater
1667           than 40 bits. Note that this has the side effect of turning on
1668           64-bit addressing which in turn makes the PTEs 64-bit in size.
1669           If unsure, say 'N' here.
1670 
1671 if CPU_LOONGSON2F
1672 config CPU_NOP_WORKAROUNDS
1673         bool
1674 
1675 config CPU_JUMP_WORKAROUNDS
1676         bool
1677 
1678 config CPU_LOONGSON2F_WORKAROUNDS
1679         bool "Loongson 2F Workarounds"
1680         default y
1681         select CPU_NOP_WORKAROUNDS
1682         select CPU_JUMP_WORKAROUNDS
1683         help
1684           Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1685           require workarounds.  Without workarounds the system may hang
1686           unexpectedly.  For more information please refer to the gas
1687           -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1688 
1689           Loongson 2F03 and later have fixed these issues and no workarounds
1690           are needed.  The workarounds have no significant side effect on them
1691           but may decrease the performance of the system so this option should
1692           be disabled unless the kernel is intended to be run on 2F01 or 2F02
1693           systems.
1694 
1695           If unsure, please say Y.
1696 endif # CPU_LOONGSON2F
1697 
1698 config SYS_SUPPORTS_ZBOOT
1699         bool
1700         select HAVE_KERNEL_GZIP
1701         select HAVE_KERNEL_BZIP2
1702         select HAVE_KERNEL_LZ4
1703         select HAVE_KERNEL_LZMA
1704         select HAVE_KERNEL_LZO
1705         select HAVE_KERNEL_XZ
1706 
1707 config SYS_SUPPORTS_ZBOOT_UART16550
1708         bool
1709         select SYS_SUPPORTS_ZBOOT
1710 
1711 config CPU_LOONGSON2
1712         bool
1713         select CPU_SUPPORTS_32BIT_KERNEL
1714         select CPU_SUPPORTS_64BIT_KERNEL
1715         select CPU_SUPPORTS_HIGHMEM
1716         select CPU_SUPPORTS_HUGEPAGES
1717 
1718 config CPU_LOONGSON1
1719         bool
1720         select CPU_MIPS32
1721         select CPU_MIPSR2
1722         select CPU_HAS_PREFETCH
1723         select CPU_SUPPORTS_32BIT_KERNEL
1724         select CPU_SUPPORTS_HIGHMEM
1725         select CPU_SUPPORTS_CPUFREQ
1726 
1727 config CPU_BMIPS32_3300
1728         select SMP_UP if SMP
1729         bool
1730 
1731 config CPU_BMIPS4350
1732         bool
1733         select SYS_SUPPORTS_SMP
1734         select SYS_SUPPORTS_HOTPLUG_CPU
1735 
1736 config CPU_BMIPS4380
1737         bool
1738         select MIPS_L1_CACHE_SHIFT_6
1739         select SYS_SUPPORTS_SMP
1740         select SYS_SUPPORTS_HOTPLUG_CPU
1741 
1742 config CPU_BMIPS5000
1743         bool
1744         select MIPS_CPU_SCACHE
1745         select MIPS_L1_CACHE_SHIFT_7
1746         select SYS_SUPPORTS_SMP
1747         select SYS_SUPPORTS_HOTPLUG_CPU
1748 
1749 config SYS_HAS_CPU_LOONGSON3
1750         bool
1751         select CPU_SUPPORTS_CPUFREQ
1752 
1753 config SYS_HAS_CPU_LOONGSON2E
1754         bool
1755 
1756 config SYS_HAS_CPU_LOONGSON2F
1757         bool
1758         select CPU_SUPPORTS_CPUFREQ
1759         select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1760         select CPU_SUPPORTS_UNCACHED_ACCELERATED
1761 
1762 config SYS_HAS_CPU_LOONGSON1B
1763         bool
1764 
1765 config SYS_HAS_CPU_MIPS32_R1
1766         bool
1767 
1768 config SYS_HAS_CPU_MIPS32_R2
1769         bool
1770 
1771 config SYS_HAS_CPU_MIPS32_R3_5
1772         bool
1773 
1774 config SYS_HAS_CPU_MIPS32_R5
1775         bool
1776 
1777 config SYS_HAS_CPU_MIPS32_R6
1778         bool
1779 
1780 config SYS_HAS_CPU_MIPS64_R1
1781         bool
1782 
1783 config SYS_HAS_CPU_MIPS64_R2
1784         bool
1785 
1786 config SYS_HAS_CPU_MIPS64_R6
1787         bool
1788 
1789 config SYS_HAS_CPU_R3000
1790         bool
1791 
1792 config SYS_HAS_CPU_TX39XX
1793         bool
1794 
1795 config SYS_HAS_CPU_VR41XX
1796         bool
1797 
1798 config SYS_HAS_CPU_R4300
1799         bool
1800 
1801 config SYS_HAS_CPU_R4X00
1802         bool
1803 
1804 config SYS_HAS_CPU_TX49XX
1805         bool
1806 
1807 config SYS_HAS_CPU_R5000
1808         bool
1809 
1810 config SYS_HAS_CPU_R5432
1811         bool
1812 
1813 config SYS_HAS_CPU_R5500
1814         bool
1815 
1816 config SYS_HAS_CPU_R6000
1817         bool
1818 
1819 config SYS_HAS_CPU_NEVADA
1820         bool
1821 
1822 config SYS_HAS_CPU_R8000
1823         bool
1824 
1825 config SYS_HAS_CPU_R10000
1826         bool
1827 
1828 config SYS_HAS_CPU_RM7000
1829         bool
1830 
1831 config SYS_HAS_CPU_SB1
1832         bool
1833 
1834 config SYS_HAS_CPU_CAVIUM_OCTEON
1835         bool
1836 
1837 config SYS_HAS_CPU_BMIPS
1838         bool
1839 
1840 config SYS_HAS_CPU_BMIPS32_3300
1841         bool
1842         select SYS_HAS_CPU_BMIPS
1843 
1844 config SYS_HAS_CPU_BMIPS4350
1845         bool
1846         select SYS_HAS_CPU_BMIPS
1847 
1848 config SYS_HAS_CPU_BMIPS4380
1849         bool
1850         select SYS_HAS_CPU_BMIPS
1851 
1852 config SYS_HAS_CPU_BMIPS5000
1853         bool
1854         select SYS_HAS_CPU_BMIPS
1855 
1856 config SYS_HAS_CPU_XLR
1857         bool
1858 
1859 config SYS_HAS_CPU_XLP
1860         bool
1861 
1862 config MIPS_MALTA_PM
1863         depends on MIPS_MALTA
1864         depends on PCI
1865         bool
1866         default y
1867 
1868 #
1869 # CPU may reorder R->R, R->W, W->R, W->W
1870 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1871 #
1872 config WEAK_ORDERING
1873         bool
1874 
1875 #
1876 # CPU may reorder reads and writes beyond LL/SC
1877 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1878 #
1879 config WEAK_REORDERING_BEYOND_LLSC
1880         bool
1881 endmenu
1882 
1883 #
1884 # These two indicate any level of the MIPS32 and MIPS64 architecture
1885 #
1886 config CPU_MIPS32
1887         bool
1888         default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6
1889 
1890 config CPU_MIPS64
1891         bool
1892         default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6
1893 
1894 #
1895 # These two indicate the revision of the architecture, either Release 1 or Release 2
1896 #
1897 config CPU_MIPSR1
1898         bool
1899         default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1900 
1901 config CPU_MIPSR2
1902         bool
1903         default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1904         select MIPS_SPRAM
1905 
1906 config CPU_MIPSR6
1907         bool
1908         default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
1909         select MIPS_SPRAM
1910 
1911 config EVA
1912         bool
1913 
1914 config XPA
1915         bool
1916 
1917 config SYS_SUPPORTS_32BIT_KERNEL
1918         bool
1919 config SYS_SUPPORTS_64BIT_KERNEL
1920         bool
1921 config CPU_SUPPORTS_32BIT_KERNEL
1922         bool
1923 config CPU_SUPPORTS_64BIT_KERNEL
1924         bool
1925 config CPU_SUPPORTS_CPUFREQ
1926         bool
1927 config CPU_SUPPORTS_ADDRWINCFG
1928         bool
1929 config CPU_SUPPORTS_HUGEPAGES
1930         bool
1931 config CPU_SUPPORTS_UNCACHED_ACCELERATED
1932         bool
1933 config MIPS_PGD_C0_CONTEXT
1934         bool
1935         default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
1936 
1937 #
1938 # Set to y for ptrace access to watch registers.
1939 #
1940 config HARDWARE_WATCHPOINTS
1941        bool
1942        default y if CPU_MIPSR1 || CPU_MIPSR2
1943 
1944 menu "Kernel type"
1945 
1946 choice
1947         prompt "Kernel code model"
1948         help
1949           You should only select this option if you have a workload that
1950           actually benefits from 64-bit processing or if your machine has
1951           large memory.  You will only be presented a single option in this
1952           menu if your system does not support both 32-bit and 64-bit kernels.
1953 
1954 config 32BIT
1955         bool "32-bit kernel"
1956         depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1957         select TRAD_SIGNALS
1958         help
1959           Select this option if you want to build a 32-bit kernel.
1960 config 64BIT
1961         bool "64-bit kernel"
1962         depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1963         help
1964           Select this option if you want to build a 64-bit kernel.
1965 
1966 endchoice
1967 
1968 config KVM_GUEST
1969         bool "KVM Guest Kernel"
1970         depends on BROKEN_ON_SMP
1971         help
1972           Select this option if building a guest kernel for KVM (Trap & Emulate) mode
1973 
1974 config KVM_GUEST_TIMER_FREQ
1975         int "Count/Compare Timer Frequency (MHz)"
1976         depends on KVM_GUEST
1977         default 100
1978         help
1979           Set this to non-zero if building a guest kernel for KVM to skip RTC
1980           emulation when determining guest CPU Frequency. Instead, the guest's
1981           timer frequency is specified directly.
1982 
1983 choice
1984         prompt "Kernel page size"
1985         default PAGE_SIZE_4KB
1986 
1987 config PAGE_SIZE_4KB
1988         bool "4kB"
1989         depends on !CPU_LOONGSON2 && !CPU_LOONGSON3
1990         help
1991          This option select the standard 4kB Linux page size.  On some
1992          R3000-family processors this is the only available page size.  Using
1993          4kB page size will minimize memory consumption and is therefore
1994          recommended for low memory systems.
1995 
1996 config PAGE_SIZE_8KB
1997         bool "8kB"
1998         depends on CPU_R8000 || CPU_CAVIUM_OCTEON
1999         help
2000           Using 8kB page size will result in higher performance kernel at
2001           the price of higher memory consumption.  This option is available
2002           only on R8000 and cnMIPS processors.  Note that you will need a
2003           suitable Linux distribution to support this.
2004 
2005 config PAGE_SIZE_16KB
2006         bool "16kB"
2007         depends on !CPU_R3000 && !CPU_TX39XX
2008         help
2009           Using 16kB page size will result in higher performance kernel at
2010           the price of higher memory consumption.  This option is available on
2011           all non-R3000 family processors.  Note that you will need a suitable
2012           Linux distribution to support this.
2013 
2014 config PAGE_SIZE_32KB
2015         bool "32kB"
2016         depends on CPU_CAVIUM_OCTEON
2017         help
2018           Using 32kB page size will result in higher performance kernel at
2019           the price of higher memory consumption.  This option is available
2020           only on cnMIPS cores.  Note that you will need a suitable Linux
2021           distribution to support this.
2022 
2023 config PAGE_SIZE_64KB
2024         bool "64kB"
2025         depends on !CPU_R3000 && !CPU_TX39XX
2026         help
2027           Using 64kB page size will result in higher performance kernel at
2028           the price of higher memory consumption.  This option is available on
2029           all non-R3000 family processor.  Not that at the time of this
2030           writing this option is still high experimental.
2031 
2032 endchoice
2033 
2034 config FORCE_MAX_ZONEORDER
2035         int "Maximum zone order"
2036         range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2037         default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2038         range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2039         default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2040         range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2041         default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2042         range 11 64
2043         default "11"
2044         help
2045           The kernel memory allocator divides physically contiguous memory
2046           blocks into "zones", where each zone is a power of two number of
2047           pages.  This option selects the largest power of two that the kernel
2048           keeps in the memory allocator.  If you need to allocate very large
2049           blocks of physically contiguous memory, then you may need to
2050           increase this value.
2051 
2052           This config option is actually maximum order plus one. For example,
2053           a value of 11 means that the largest free memory block is 2^10 pages.
2054 
2055           The page size is not necessarily 4KB.  Keep this in mind
2056           when choosing a value for this option.
2057 
2058 config BOARD_SCACHE
2059         bool
2060 
2061 config IP22_CPU_SCACHE
2062         bool
2063         select BOARD_SCACHE
2064 
2065 #
2066 # Support for a MIPS32 / MIPS64 style S-caches
2067 #
2068 config MIPS_CPU_SCACHE
2069         bool
2070         select BOARD_SCACHE
2071 
2072 config R5000_CPU_SCACHE
2073         bool
2074         select BOARD_SCACHE
2075 
2076 config RM7000_CPU_SCACHE
2077         bool
2078         select BOARD_SCACHE
2079 
2080 config SIBYTE_DMA_PAGEOPS
2081         bool "Use DMA to clear/copy pages"
2082         depends on CPU_SB1
2083         help
2084           Instead of using the CPU to zero and copy pages, use a Data Mover
2085           channel.  These DMA channels are otherwise unused by the standard
2086           SiByte Linux port.  Seems to give a small performance benefit.
2087 
2088 config CPU_HAS_PREFETCH
2089         bool
2090 
2091 config CPU_GENERIC_DUMP_TLB
2092         bool
2093         default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
2094 
2095 config CPU_R4K_FPU
2096         bool
2097         default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
2098 
2099 config CPU_R4K_CACHE_TLB
2100         bool
2101         default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
2102 
2103 config MIPS_MT_SMP
2104         bool "MIPS MT SMP support (1 TC on each available VPE)"
2105         depends on SYS_SUPPORTS_MULTITHREADING
2106         select CPU_MIPSR2_IRQ_VI
2107         select CPU_MIPSR2_IRQ_EI
2108         select SYNC_R4K
2109         select MIPS_GIC_IPI
2110         select MIPS_MT
2111         select SMP
2112         select SMP_UP
2113         select SYS_SUPPORTS_SMP
2114         select SYS_SUPPORTS_SCHED_SMT
2115         select MIPS_PERF_SHARED_TC_COUNTERS
2116         help
2117           This is a kernel model which is known as SMVP. This is supported
2118           on cores with the MT ASE and uses the available VPEs to implement
2119           virtual processors which supports SMP. This is equivalent to the
2120           Intel Hyperthreading feature. For further information go to
2121           <http://www.imgtec.com/mips/mips-multithreading.asp>.
2122 
2123 config MIPS_MT
2124         bool
2125 
2126 config SCHED_SMT
2127         bool "SMT (multithreading) scheduler support"
2128         depends on SYS_SUPPORTS_SCHED_SMT
2129         default n
2130         help
2131           SMT scheduler support improves the CPU scheduler's decision making
2132           when dealing with MIPS MT enabled cores at a cost of slightly
2133           increased overhead in some places. If unsure say N here.
2134 
2135 config SYS_SUPPORTS_SCHED_SMT
2136         bool
2137 
2138 config SYS_SUPPORTS_MULTITHREADING
2139         bool
2140 
2141 config MIPS_MT_FPAFF
2142         bool "Dynamic FPU affinity for FP-intensive threads"
2143         default y
2144         depends on MIPS_MT_SMP
2145 
2146 config MIPSR2_TO_R6_EMULATOR
2147         bool "MIPS R2-to-R6 emulator"
2148         depends on CPU_MIPSR6 && !SMP
2149         default y
2150         help
2151           Choose this option if you want to run non-R6 MIPS userland code.
2152           Even if you say 'Y' here, the emulator will still be disabled by
2153           default. You can enable it using the 'mipsr2emu' kernel option.
2154           The only reason this is a build-time option is to save ~14K from the
2155           final kernel image.
2156 comment "MIPS R2-to-R6 emulator is only available for UP kernels"
2157         depends on SMP && CPU_MIPSR6
2158 
2159 config MIPS_VPE_LOADER
2160         bool "VPE loader support."
2161         depends on SYS_SUPPORTS_MULTITHREADING && MODULES
2162         select CPU_MIPSR2_IRQ_VI
2163         select CPU_MIPSR2_IRQ_EI
2164         select MIPS_MT
2165         help
2166           Includes a loader for loading an elf relocatable object
2167           onto another VPE and running it.
2168 
2169 config MIPS_VPE_LOADER_CMP
2170         bool
2171         default "y"
2172         depends on MIPS_VPE_LOADER && MIPS_CMP
2173 
2174 config MIPS_VPE_LOADER_MT
2175         bool
2176         default "y"
2177         depends on MIPS_VPE_LOADER && !MIPS_CMP
2178 
2179 config MIPS_VPE_LOADER_TOM
2180         bool "Load VPE program into memory hidden from linux"
2181         depends on MIPS_VPE_LOADER
2182         default y
2183         help
2184           The loader can use memory that is present but has been hidden from
2185           Linux using the kernel command line option "mem=xxMB". It's up to
2186           you to ensure the amount you put in the option and the space your
2187           program requires is less or equal to the amount physically present.
2188 
2189 config MIPS_VPE_APSP_API
2190         bool "Enable support for AP/SP API (RTLX)"
2191         depends on MIPS_VPE_LOADER
2192         help
2193 
2194 config MIPS_VPE_APSP_API_CMP
2195         bool
2196         default "y"
2197         depends on MIPS_VPE_APSP_API && MIPS_CMP
2198 
2199 config MIPS_VPE_APSP_API_MT
2200         bool
2201         default "y"
2202         depends on MIPS_VPE_APSP_API && !MIPS_CMP
2203 
2204 config MIPS_CMP
2205         bool "MIPS CMP framework support (DEPRECATED)"
2206         depends on SYS_SUPPORTS_MIPS_CMP
2207         select MIPS_GIC_IPI
2208         select SMP
2209         select SYNC_R4K
2210         select SYS_SUPPORTS_SMP
2211         select WEAK_ORDERING
2212         default n
2213         help
2214           Select this if you are using a bootloader which implements the "CMP
2215           framework" protocol (ie. YAMON) and want your kernel to make use of
2216           its ability to start secondary CPUs.
2217 
2218           Unless you have a specific need, you should use CONFIG_MIPS_CPS
2219           instead of this.
2220 
2221 config MIPS_CPS
2222         bool "MIPS Coherent Processing System support"
2223         depends on SYS_SUPPORTS_MIPS_CPS && !64BIT
2224         select MIPS_CM
2225         select MIPS_CPC
2226         select MIPS_CPS_PM if HOTPLUG_CPU
2227         select MIPS_GIC_IPI
2228         select SMP
2229         select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2230         select SYS_SUPPORTS_HOTPLUG_CPU
2231         select SYS_SUPPORTS_SMP
2232         select WEAK_ORDERING
2233         help
2234           Select this if you wish to run an SMP kernel across multiple cores
2235           within a MIPS Coherent Processing System. When this option is
2236           enabled the kernel will probe for other cores and boot them with
2237           no external assistance. It is safe to enable this when hardware
2238           support is unavailable.
2239 
2240 config MIPS_CPS_PM
2241         depends on MIPS_CPS
2242         select MIPS_CPC
2243         bool
2244 
2245 config MIPS_GIC_IPI
2246         bool
2247 
2248 config MIPS_CM
2249         bool
2250 
2251 config MIPS_CPC
2252         bool
2253 
2254 config SB1_PASS_1_WORKAROUNDS
2255         bool
2256         depends on CPU_SB1_PASS_1
2257         default y
2258 
2259 config SB1_PASS_2_WORKAROUNDS
2260         bool
2261         depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2262         default y
2263 
2264 config SB1_PASS_2_1_WORKAROUNDS
2265         bool
2266         depends on CPU_SB1 && CPU_SB1_PASS_2
2267         default y
2268 
2269 
2270 config ARCH_PHYS_ADDR_T_64BIT
2271        bool
2272 
2273 choice
2274         prompt "SmartMIPS or microMIPS ASE support"
2275 
2276 config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
2277         bool "None"
2278         help
2279           Select this if you want neither microMIPS nor SmartMIPS support
2280 
2281 config CPU_HAS_SMARTMIPS
2282         depends on SYS_SUPPORTS_SMARTMIPS
2283         bool "SmartMIPS"
2284         help
2285           SmartMIPS is a extension of the MIPS32 architecture aimed at
2286           increased security at both hardware and software level for
2287           smartcards.  Enabling this option will allow proper use of the
2288           SmartMIPS instructions by Linux applications.  However a kernel with
2289           this option will not work on a MIPS core without SmartMIPS core.  If
2290           you don't know you probably don't have SmartMIPS and should say N
2291           here.
2292 
2293 config CPU_MICROMIPS
2294         depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2295         bool "microMIPS"
2296         help
2297           When this option is enabled the kernel will be built using the
2298           microMIPS ISA
2299 
2300 endchoice
2301 
2302 config CPU_HAS_MSA
2303         bool "Support for the MIPS SIMD Architecture (EXPERIMENTAL)"
2304         depends on CPU_SUPPORTS_MSA
2305         depends on 64BIT || MIPS_O32_FP64_SUPPORT
2306         help
2307           MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2308           and a set of SIMD instructions to operate on them. When this option
2309           is enabled the kernel will support allocating & switching MSA
2310           vector register contexts. If you know that your kernel will only be
2311           running on CPUs which do not support MSA or that your userland will
2312           not be making use of it then you may wish to say N here to reduce
2313           the size & complexity of your kernel.
2314 
2315           If unsure, say Y.
2316 
2317 config CPU_HAS_WB
2318         bool
2319 
2320 config XKS01
2321         bool
2322 
2323 #
2324 # Vectored interrupt mode is an R2 feature
2325 #
2326 config CPU_MIPSR2_IRQ_VI
2327         bool
2328 
2329 #
2330 # Extended interrupt mode is an R2 feature
2331 #
2332 config CPU_MIPSR2_IRQ_EI
2333         bool
2334 
2335 config CPU_HAS_SYNC
2336         bool
2337         depends on !CPU_R3000
2338         default y
2339 
2340 #
2341 # CPU non-features
2342 #
2343 config CPU_DADDI_WORKAROUNDS
2344         bool
2345 
2346 config CPU_R4000_WORKAROUNDS
2347         bool
2348         select CPU_R4400_WORKAROUNDS
2349 
2350 config CPU_R4400_WORKAROUNDS
2351         bool
2352 
2353 #
2354 # - Highmem only makes sense for the 32-bit kernel.
2355 # - The current highmem code will only work properly on physically indexed
2356 #   caches such as R3000, SB1, R7000 or those that look like they're virtually
2357 #   indexed such as R4000/R4400 SC and MC versions or R10000.  So for the
2358 #   moment we protect the user and offer the highmem option only on machines
2359 #   where it's known to be safe.  This will not offer highmem on a few systems
2360 #   such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2361 #   indexed CPUs but we're playing safe.
2362 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2363 #   know they might have memory configurations that could make use of highmem
2364 #   support.
2365 #
2366 config HIGHMEM
2367         bool "High Memory Support"
2368         depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2369 
2370 config CPU_SUPPORTS_HIGHMEM
2371         bool
2372 
2373 config SYS_SUPPORTS_HIGHMEM
2374         bool
2375 
2376 config SYS_SUPPORTS_SMARTMIPS
2377         bool
2378 
2379 config SYS_SUPPORTS_MICROMIPS
2380         bool
2381 
2382 config SYS_SUPPORTS_MIPS16
2383         bool
2384         help
2385           This option must be set if a kernel might be executed on a MIPS16-
2386           enabled CPU even if MIPS16 is not actually being used.  In other
2387           words, it makes the kernel MIPS16-tolerant.
2388 
2389 config CPU_SUPPORTS_MSA
2390         bool
2391 
2392 config ARCH_FLATMEM_ENABLE
2393         def_bool y
2394         depends on !NUMA && !CPU_LOONGSON2
2395 
2396 config ARCH_DISCONTIGMEM_ENABLE
2397         bool
2398         default y if SGI_IP27
2399         help
2400           Say Y to support efficient handling of discontiguous physical memory,
2401           for architectures which are either NUMA (Non-Uniform Memory Access)
2402           or have huge holes in the physical address space for other reasons.
2403           See <file:Documentation/vm/numa> for more.
2404 
2405 config ARCH_SPARSEMEM_ENABLE
2406         bool
2407         select SPARSEMEM_STATIC
2408 
2409 config NUMA
2410         bool "NUMA Support"
2411         depends on SYS_SUPPORTS_NUMA
2412         help
2413           Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2414           Access).  This option improves performance on systems with more
2415           than two nodes; on two node systems it is generally better to
2416           leave it disabled; on single node systems disable this option
2417           disabled.
2418 
2419 config SYS_SUPPORTS_NUMA
2420         bool
2421 
2422 config NODES_SHIFT
2423         int
2424         default "6"
2425         depends on NEED_MULTIPLE_NODES
2426 
2427 config HW_PERF_EVENTS
2428         bool "Enable hardware performance counter support for perf events"
2429         depends on PERF_EVENTS && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3)
2430         default y
2431         help
2432           Enable hardware performance counter support for perf events. If
2433           disabled, perf events will use software events only.
2434 
2435 source "mm/Kconfig"
2436 
2437 config SMP
2438         bool "Multi-Processing support"
2439         depends on SYS_SUPPORTS_SMP
2440         help
2441           This enables support for systems with more than one CPU. If you have
2442           a system with only one CPU, say N. If you have a system with more
2443           than one CPU, say Y.
2444 
2445           If you say N here, the kernel will run on uni- and multiprocessor
2446           machines, but will use only one CPU of a multiprocessor machine. If
2447           you say Y here, the kernel will run on many, but not all,
2448           uniprocessor machines. On a uniprocessor machine, the kernel
2449           will run faster if you say N here.
2450 
2451           People using multiprocessor machines who say Y here should also say
2452           Y to "Enhanced Real Time Clock Support", below.
2453 
2454           See also the SMP-HOWTO available at
2455           <http://www.tldp.org/docs.html#howto>.
2456 
2457           If you don't know what to do here, say N.
2458 
2459 config SMP_UP
2460         bool
2461 
2462 config SYS_SUPPORTS_MIPS_CMP
2463         bool
2464 
2465 config SYS_SUPPORTS_MIPS_CPS
2466         bool
2467 
2468 config SYS_SUPPORTS_SMP
2469         bool
2470 
2471 config NR_CPUS_DEFAULT_4
2472         bool
2473 
2474 config NR_CPUS_DEFAULT_8
2475         bool
2476 
2477 config NR_CPUS_DEFAULT_16
2478         bool
2479 
2480 config NR_CPUS_DEFAULT_32
2481         bool
2482 
2483 config NR_CPUS_DEFAULT_64
2484         bool
2485 
2486 config NR_CPUS
2487         int "Maximum number of CPUs (2-256)"
2488         range 2 256
2489         depends on SMP
2490         default "4" if NR_CPUS_DEFAULT_4
2491         default "8" if NR_CPUS_DEFAULT_8
2492         default "16" if NR_CPUS_DEFAULT_16
2493         default "32" if NR_CPUS_DEFAULT_32
2494         default "64" if NR_CPUS_DEFAULT_64
2495         help
2496           This allows you to specify the maximum number of CPUs which this
2497           kernel will support.  The maximum supported value is 32 for 32-bit
2498           kernel and 64 for 64-bit kernels; the minimum value which makes
2499           sense is 1 for Qemu (useful only for kernel debugging purposes)
2500           and 2 for all others.
2501 
2502           This is purely to save memory - each supported CPU adds
2503           approximately eight kilobytes to the kernel image.  For best
2504           performance should round up your number of processors to the next
2505           power of two.
2506 
2507 config MIPS_PERF_SHARED_TC_COUNTERS
2508         bool
2509 
2510 #
2511 # Timer Interrupt Frequency Configuration
2512 #
2513 
2514 choice
2515         prompt "Timer frequency"
2516         default HZ_250
2517         help
2518          Allows the configuration of the timer frequency.
2519 
2520         config HZ_48
2521                 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2522 
2523         config HZ_100
2524                 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2525 
2526         config HZ_128
2527                 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2528 
2529         config HZ_250
2530                 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2531 
2532         config HZ_256
2533                 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2534 
2535         config HZ_1000
2536                 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2537 
2538         config HZ_1024
2539                 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2540 
2541 endchoice
2542 
2543 config SYS_SUPPORTS_48HZ
2544         bool
2545 
2546 config SYS_SUPPORTS_100HZ
2547         bool
2548 
2549 config SYS_SUPPORTS_128HZ
2550         bool
2551 
2552 config SYS_SUPPORTS_250HZ
2553         bool
2554 
2555 config SYS_SUPPORTS_256HZ
2556         bool
2557 
2558 config SYS_SUPPORTS_1000HZ
2559         bool
2560 
2561 config SYS_SUPPORTS_1024HZ
2562         bool
2563 
2564 config SYS_SUPPORTS_ARBIT_HZ
2565         bool
2566         default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2567                      !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2568                      !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2569                      !SYS_SUPPORTS_1024HZ
2570 
2571 config HZ
2572         int
2573         default 48 if HZ_48
2574         default 100 if HZ_100
2575         default 128 if HZ_128
2576         default 250 if HZ_250
2577         default 256 if HZ_256
2578         default 1000 if HZ_1000
2579         default 1024 if HZ_1024
2580 
2581 config SCHED_HRTICK
2582         def_bool HIGH_RES_TIMERS
2583 
2584 source "kernel/Kconfig.preempt"
2585 
2586 config KEXEC
2587         bool "Kexec system call"
2588         help
2589           kexec is a system call that implements the ability to shutdown your
2590           current kernel, and to start another kernel.  It is like a reboot
2591           but it is independent of the system firmware.   And like a reboot
2592           you can start any kernel with it, not just Linux.
2593 
2594           The name comes from the similarity to the exec system call.
2595 
2596           It is an ongoing process to be certain the hardware in a machine
2597           is properly shutdown, so do not be surprised if this code does not
2598           initially work for you.  As of this writing the exact hardware
2599           interface is strongly in flux, so no good recommendation can be
2600           made.
2601 
2602 config CRASH_DUMP
2603           bool "Kernel crash dumps"
2604           help
2605           Generate crash dump after being started by kexec.
2606           This should be normally only set in special crash dump kernels
2607           which are loaded in the main kernel with kexec-tools into
2608           a specially reserved region and then later executed after
2609           a crash by kdump/kexec. The crash dump kernel must be compiled
2610           to a memory address not used by the main kernel or firmware using
2611           PHYSICAL_START.
2612 
2613 config PHYSICAL_START
2614           hex "Physical address where the kernel is loaded"
2615           default "0xffffffff84000000" if 64BIT
2616           default "0x84000000" if 32BIT
2617           depends on CRASH_DUMP
2618           help
2619           This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2620           If you plan to use kernel for capturing the crash dump change
2621           this value to start of the reserved region (the "X" value as
2622           specified in the "crashkernel=YM@XM" command line boot parameter
2623           passed to the panic-ed kernel).
2624 
2625 config SECCOMP
2626         bool "Enable seccomp to safely compute untrusted bytecode"
2627         depends on PROC_FS
2628         default y
2629         help
2630           This kernel feature is useful for number crunching applications
2631           that may need to compute untrusted bytecode during their
2632           execution. By using pipes or other transports made available to
2633           the process as file descriptors supporting the read/write
2634           syscalls, it's possible to isolate those applications in
2635           their own address space using seccomp. Once seccomp is
2636           enabled via /proc/<pid>/seccomp, it cannot be disabled
2637           and the task is only allowed to execute a few safe syscalls
2638           defined by each seccomp mode.
2639 
2640           If unsure, say Y. Only embedded should say N here.
2641 
2642 config MIPS_O32_FP64_SUPPORT
2643         bool "Support for O32 binaries using 64-bit FP (EXPERIMENTAL)"
2644         depends on 32BIT || MIPS32_O32
2645         help
2646           When this is enabled, the kernel will support use of 64-bit floating
2647           point registers with binaries using the O32 ABI along with the
2648           EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
2649           32-bit MIPS systems this support is at the cost of increasing the
2650           size and complexity of the compiled FPU emulator. Thus if you are
2651           running a MIPS32 system and know that none of your userland binaries
2652           will require 64-bit floating point, you may wish to reduce the size
2653           of your kernel & potentially improve FP emulation performance by
2654           saying N here.
2655 
2656           Although binutils currently supports use of this flag the details
2657           concerning its effect upon the O32 ABI in userland are still being
2658           worked on. In order to avoid userland becoming dependant upon current
2659           behaviour before the details have been finalised, this option should
2660           be considered experimental and only enabled by those working upon
2661           said details.
2662 
2663           If unsure, say N.
2664 
2665 config USE_OF
2666         bool
2667         select OF
2668         select OF_EARLY_FLATTREE
2669         select IRQ_DOMAIN
2670 
2671 config BUILTIN_DTB
2672         bool
2673 
2674 endmenu
2675 
2676 config LOCKDEP_SUPPORT
2677         bool
2678         default y
2679 
2680 config STACKTRACE_SUPPORT
2681         bool
2682         default y
2683 
2684 config PGTABLE_LEVELS
2685         int
2686         default 3 if 64BIT && !PAGE_SIZE_64KB
2687         default 2
2688 
2689 source "init/Kconfig"
2690 
2691 source "kernel/Kconfig.freezer"
2692 
2693 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2694 
2695 config HW_HAS_EISA
2696         bool
2697 config HW_HAS_PCI
2698         bool
2699 
2700 config PCI
2701         bool "Support for PCI controller"
2702         depends on HW_HAS_PCI
2703         select PCI_DOMAINS
2704         select NO_GENERIC_PCI_IOPORT_MAP
2705         help
2706           Find out whether you have a PCI motherboard. PCI is the name of a
2707           bus system, i.e. the way the CPU talks to the other stuff inside
2708           your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2709           say Y, otherwise N.
2710 
2711 config HT_PCI
2712         bool "Support for HT-linked PCI"
2713         default y
2714         depends on CPU_LOONGSON3
2715         select PCI
2716         select PCI_DOMAINS
2717         help
2718           Loongson family machines use Hyper-Transport bus for inter-core
2719           connection and device connection. The PCI bus is a subordinate
2720           linked at HT. Choose Y for Loongson-3 based machines.
2721 
2722 config PCI_DOMAINS
2723         bool
2724 
2725 source "drivers/pci/Kconfig"
2726 
2727 source "drivers/pci/pcie/Kconfig"
2728 
2729 #
2730 # ISA support is now enabled via select.  Too many systems still have the one
2731 # or other ISA chip on the board that users don't know about so don't expect
2732 # users to choose the right thing ...
2733 #
2734 config ISA
2735         bool
2736 
2737 config EISA
2738         bool "EISA support"
2739         depends on HW_HAS_EISA
2740         select ISA
2741         select GENERIC_ISA_DMA
2742         ---help---
2743           The Extended Industry Standard Architecture (EISA) bus was
2744           developed as an open alternative to the IBM MicroChannel bus.
2745 
2746           The EISA bus provided some of the features of the IBM MicroChannel
2747           bus while maintaining backward compatibility with cards made for
2748           the older ISA bus.  The EISA bus saw limited use between 1988 and
2749           1995 when it was made obsolete by the PCI bus.
2750 
2751           Say Y here if you are building a kernel for an EISA-based machine.
2752 
2753           Otherwise, say N.
2754 
2755 source "drivers/eisa/Kconfig"
2756 
2757 config TC
2758         bool "TURBOchannel support"
2759         depends on MACH_DECSTATION
2760         help
2761           TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2762           processors.  TURBOchannel programming specifications are available
2763           at:
2764           <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2765           and:
2766           <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2767           Linux driver support status is documented at:
2768           <http://www.linux-mips.org/wiki/DECstation>
2769 
2770 config MMU
2771         bool
2772         default y
2773 
2774 config I8253
2775         bool
2776         select CLKSRC_I8253
2777         select CLKEVT_I8253
2778         select MIPS_EXTERNAL_TIMER
2779 
2780 config ZONE_DMA
2781         bool
2782 
2783 config ZONE_DMA32
2784         bool
2785 
2786 source "drivers/pcmcia/Kconfig"
2787 
2788 source "drivers/pci/hotplug/Kconfig"
2789 
2790 config RAPIDIO
2791         tristate "RapidIO support"
2792         depends on PCI
2793         default n
2794         help
2795           If you say Y here, the kernel will include drivers and
2796           infrastructure code to support RapidIO interconnect devices.
2797 
2798 source "drivers/rapidio/Kconfig"
2799 
2800 endmenu
2801 
2802 menu "Executable file formats"
2803 
2804 source "fs/Kconfig.binfmt"
2805 
2806 config TRAD_SIGNALS
2807         bool
2808 
2809 config MIPS32_COMPAT
2810         bool
2811 
2812 config COMPAT
2813         bool
2814 
2815 config SYSVIPC_COMPAT
2816         bool
2817 
2818 config MIPS32_O32
2819         bool "Kernel support for o32 binaries"
2820         depends on 64BIT
2821         select ARCH_WANT_OLD_COMPAT_IPC
2822         select COMPAT
2823         select MIPS32_COMPAT
2824         select SYSVIPC_COMPAT if SYSVIPC
2825         help
2826           Select this option if you want to run o32 binaries.  These are pure
2827           32-bit binaries as used by the 32-bit Linux/MIPS port.  Most of
2828           existing binaries are in this format.
2829 
2830           If unsure, say Y.
2831 
2832 config MIPS32_N32
2833         bool "Kernel support for n32 binaries"
2834         depends on 64BIT
2835         select COMPAT
2836         select MIPS32_COMPAT
2837         select SYSVIPC_COMPAT if SYSVIPC
2838         help
2839           Select this option if you want to run n32 binaries.  These are
2840           64-bit binaries using 32-bit quantities for addressing and certain
2841           data that would normally be 64-bit.  They are used in special
2842           cases.
2843 
2844           If unsure, say N.
2845 
2846 config BINFMT_ELF32
2847         bool
2848         default y if MIPS32_O32 || MIPS32_N32
2849 
2850 endmenu
2851 
2852 menu "Power management options"
2853 
2854 config ARCH_HIBERNATION_POSSIBLE
2855         def_bool y
2856         depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2857 
2858 config ARCH_SUSPEND_POSSIBLE
2859         def_bool y
2860         depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2861 
2862 source "kernel/power/Kconfig"
2863 
2864 endmenu
2865 
2866 config MIPS_EXTERNAL_TIMER
2867         bool
2868 
2869 menu "CPU Power Management"
2870 
2871 if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
2872 source "drivers/cpufreq/Kconfig"
2873 endif
2874 
2875 source "drivers/cpuidle/Kconfig"
2876 
2877 endmenu
2878 
2879 source "net/Kconfig"
2880 
2881 source "drivers/Kconfig"
2882 
2883 source "drivers/firmware/Kconfig"
2884 
2885 source "fs/Kconfig"
2886 
2887 source "arch/mips/Kconfig.debug"
2888 
2889 source "security/Kconfig"
2890 
2891 source "crypto/Kconfig"
2892 
2893 source "lib/Kconfig"
2894 
2895 source "arch/mips/kvm/Kconfig"

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