Kconfig 48 KB

12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879808182838485868788899091929394959697989910010110210310410510610710810911011111211311411511611711811912012112212312412512612712812913013113213313413513613713813914014114214314414514614714814915015115215315415515615715815916016116216316416516616716816917017117217317417517617717817918018118218318418518618718818919019119219319419519619719819920020120220320420520620720820921021121221321421521621721821922022122222322422522622722822923023123223323423523623723823924024124224324424524624724824925025125225325425525625725825926026126226326426526626726826927027127227327427527627727827928028128228328428528628728828929029129229329429529629729829930030130230330430530630730830931031131231331431531631731831932032132232332432532632732832933033133233333433533633733833934034134234334434534634734834935035135235335435535635735835936036136236336436536636736836937037137237337437537637737837938038138238338438538638738838939039139239339439539639739839940040140240340440540640740840941041141241341441541641741841942042142242342442542642742842943043143243343443543643743843944044144244344444544644744844945045145245345445545645745845946046146246346446546646746846947047147247347447547647747847948048148248348448548648748848949049149249349449549649749849950050150250350450550650750850951051151251351451551651751851952052152252352452552652752852953053153253353453553653753853954054154254354454554654754854955055155255355455555655755855956056156256356456556656756856957057157257357457557657757857958058158258358458558658758858959059159259359459559659759859960060160260360460560660760860961061161261361461561661761861962062162262362462562662762862963063163263363463563663763863964064164264364464564664764864965065165265365465565665765865966066166266366466566666766866967067167267367467567667767867968068168268368468568668768868969069169269369469569669769869970070170270370470570670770870971071171271371471571671771871972072172272372472572672772872973073173273373473573673773873974074174274374474574674774874975075175275375475575675775875976076176276376476576676776876977077177277377477577677777877978078178278378478578678778878979079179279379479579679779879980080180280380480580680780880981081181281381481581681781881982082182282382482582682782882983083183283383483583683783883984084184284384484584684784884985085185285385485585685785885986086186286386486586686786886987087187287387487587687787887988088188288388488588688788888989089189289389489589689789889990090190290390490590690790890991091191291391491591691791891992092192292392492592692792892993093193293393493593693793893994094194294394494594694794894995095195295395495595695795895996096196296396496596696796896997097197297397497597697797897998098198298398498598698798898999099199299399499599699799899910001001100210031004100510061007100810091010101110121013101410151016101710181019102010211022102310241025102610271028102910301031103210331034103510361037103810391040104110421043104410451046104710481049105010511052105310541055105610571058105910601061106210631064106510661067106810691070107110721073107410751076107710781079108010811082108310841085108610871088108910901091109210931094109510961097109810991100110111021103110411051106110711081109111011111112111311141115111611171118111911201121112211231124112511261127112811291130113111321133113411351136113711381139114011411142114311441145114611471148114911501151115211531154115511561157115811591160116111621163116411651166116711681169117011711172117311741175117611771178117911801181118211831184118511861187118811891190119111921193119411951196119711981199120012011202120312041205120612071208120912101211121212131214121512161217121812191220122112221223122412251226122712281229123012311232123312341235123612371238123912401241124212431244124512461247124812491250125112521253125412551256125712581259126012611262126312641265126612671268126912701271127212731274127512761277127812791280128112821283128412851286128712881289129012911292129312941295129612971298129913001301130213031304130513061307130813091310131113121313131413151316131713181319132013211322132313241325132613271328132913301331133213331334133513361337133813391340134113421343134413451346134713481349135013511352135313541355135613571358135913601361136213631364136513661367136813691370137113721373137413751376137713781379138013811382138313841385138613871388138913901391139213931394139513961397139813991400140114021403140414051406140714081409141014111412141314141415141614171418141914201421142214231424142514261427142814291430143114321433143414351436143714381439144014411442144314441445144614471448144914501451145214531454145514561457145814591460146114621463146414651466146714681469147014711472147314741475147614771478147914801481148214831484148514861487148814891490149114921493149414951496149714981499150015011502150315041505150615071508150915101511151215131514151515161517151815191520152115221523152415251526152715281529153015311532153315341535153615371538153915401541154215431544154515461547154815491550155115521553155415551556155715581559156015611562156315641565156615671568156915701571157215731574157515761577157815791580158115821583158415851586158715881589159015911592159315941595159615971598159916001601160216031604160516061607160816091610161116121613161416151616161716181619162016211622162316241625162616271628162916301631163216331634163516361637163816391640164116421643164416451646164716481649165016511652165316541655165616571658165916601661166216631664166516661667166816691670167116721673167416751676167716781679168016811682168316841685168616871688168916901691169216931694169516961697169816991700170117021703170417051706170717081709171017111712171317141715171617171718171917201721172217231724172517261727172817291730173117321733173417351736173717381739174017411742174317441745174617471748174917501751175217531754175517561757175817591760176117621763176417651766176717681769177017711772177317741775177617771778177917801781178217831784178517861787178817891790179117921793179417951796179717981799180018011802180318041805180618071808180918101811181218131814181518161817181818191820182118221823182418251826182718281829183018311832183318341835183618371838183918401841184218431844184518461847184818491850185118521853185418551856185718581859186018611862186318641865186618671868186918701871187218731874187518761877187818791880188118821883188418851886188718881889189018911892189318941895189618971898189919001901190219031904190519061907190819091910191119121913191419151916191719181919192019211922192319241925192619271928192919301931193219331934193519361937193819391940194119421943194419451946194719481949195019511952195319541955195619571958195919601961196219631964196519661967196819691970197119721973197419751976197719781979198019811982198319841985198619871988198919901991199219931994199519961997199819992000200120022003200420052006200720082009201020112012201320142015201620172018201920202021202220232024202520262027202820292030203120322033203420352036203720382039
  1. config MIPS
  2. bool
  3. default y
  4. # Horrible source of confusion. Die, die, die ...
  5. select EMBEDDED
  6. select RTC_LIB
  7. mainmenu "Linux/MIPS Kernel Configuration"
  8. menu "Machine selection"
  9. config ZONE_DMA
  10. bool
  11. choice
  12. prompt "System type"
  13. default SGI_IP22
  14. config MACH_ALCHEMY
  15. bool "Alchemy processor based machines"
  16. config BASLER_EXCITE
  17. bool "Basler eXcite smart camera"
  18. select CEVT_R4K
  19. select DMA_COHERENT
  20. select HW_HAS_PCI
  21. select IRQ_CPU
  22. select IRQ_CPU_RM7K
  23. select IRQ_CPU_RM9K
  24. select MIPS_RM9122
  25. select SYS_HAS_CPU_RM9000
  26. select SYS_SUPPORTS_32BIT_KERNEL
  27. select SYS_SUPPORTS_BIG_ENDIAN
  28. select SYS_SUPPORTS_KGDB
  29. help
  30. The eXcite is a smart camera platform manufactured by
  31. Basler Vision Technologies AG.
  32. config BASLER_EXCITE_PROTOTYPE
  33. bool "Support for pre-release units"
  34. depends on BASLER_EXCITE
  35. default n
  36. help
  37. Pre-series (prototype) units are different from later ones in
  38. some ways. Select this option if you have one of these. Please
  39. note that a kernel built with this option selected will not be
  40. able to run on normal units.
  41. config BCM47XX
  42. bool "BCM47XX based boards"
  43. select CEVT_R4K
  44. select DMA_NONCOHERENT
  45. select HW_HAS_PCI
  46. select IRQ_CPU
  47. select SYS_HAS_CPU_MIPS32_R1
  48. select SYS_SUPPORTS_32BIT_KERNEL
  49. select SYS_SUPPORTS_LITTLE_ENDIAN
  50. select SSB
  51. select SSB_DRIVER_MIPS
  52. select GENERIC_GPIO
  53. select SYS_HAS_EARLY_PRINTK
  54. select CFE
  55. help
  56. Support for BCM47XX based boards
  57. config MIPS_COBALT
  58. bool "Cobalt Server"
  59. select CEVT_R4K
  60. select CEVT_GT641XX
  61. select DMA_NONCOHERENT
  62. select HW_HAS_PCI
  63. select I8253
  64. select I8259
  65. select IRQ_CPU
  66. select IRQ_GT641XX
  67. select PCI_GT64XXX_PCI0
  68. select SYS_HAS_CPU_NEVADA
  69. select SYS_HAS_EARLY_PRINTK
  70. select SYS_SUPPORTS_32BIT_KERNEL
  71. select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
  72. select SYS_SUPPORTS_LITTLE_ENDIAN
  73. select GENERIC_HARDIRQS_NO__DO_IRQ
  74. config MACH_DECSTATION
  75. bool "DECstations"
  76. select BOOT_ELF32
  77. select CEVT_R4K
  78. select DMA_NONCOHERENT
  79. select NO_IOPORT
  80. select IRQ_CPU
  81. select SYS_HAS_CPU_R3000
  82. select SYS_HAS_CPU_R4X00
  83. select SYS_SUPPORTS_32BIT_KERNEL
  84. select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
  85. select SYS_SUPPORTS_LITTLE_ENDIAN
  86. select SYS_SUPPORTS_128HZ
  87. select SYS_SUPPORTS_256HZ
  88. select SYS_SUPPORTS_1024HZ
  89. help
  90. This enables support for DEC's MIPS based workstations. For details
  91. see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
  92. DECstation porting pages on <http://decstation.unix-ag.org/>.
  93. If you have one of the following DECstation Models you definitely
  94. want to choose R4xx0 for the CPU Type:
  95. DECstation 5000/50
  96. DECstation 5000/150
  97. DECstation 5000/260
  98. DECsystem 5900/260
  99. otherwise choose R3000.
  100. config MACH_JAZZ
  101. bool "Jazz family of machines"
  102. select ARC
  103. select ARC32
  104. select ARCH_MAY_HAVE_PC_FDC
  105. select CEVT_R4K
  106. select GENERIC_ISA_DMA
  107. select IRQ_CPU
  108. select I8253
  109. select I8259
  110. select ISA
  111. select PCSPEAKER
  112. select SYS_HAS_CPU_R4X00
  113. select SYS_SUPPORTS_32BIT_KERNEL
  114. select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
  115. select SYS_SUPPORTS_100HZ
  116. select GENERIC_HARDIRQS_NO__DO_IRQ
  117. help
  118. This a family of machines based on the MIPS R4030 chipset which was
  119. used by several vendors to build RISC/os and Windows NT workstations.
  120. Members include the Acer PICA, MIPS Magnum 4000, MIPS Millenium and
  121. Olivetti M700-10 workstations.
  122. config LASAT
  123. bool "LASAT Networks platforms"
  124. select CEVT_R4K
  125. select DMA_NONCOHERENT
  126. select SYS_HAS_EARLY_PRINTK
  127. select HW_HAS_PCI
  128. select IRQ_CPU
  129. select PCI_GT64XXX_PCI0
  130. select MIPS_NILE4
  131. select R5000_CPU_SCACHE
  132. select SYS_HAS_CPU_R5000
  133. select SYS_SUPPORTS_32BIT_KERNEL
  134. select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
  135. select SYS_SUPPORTS_LITTLE_ENDIAN
  136. select GENERIC_HARDIRQS_NO__DO_IRQ
  137. config LEMOTE_FULONG
  138. bool "Lemote Fulong mini-PC"
  139. select ARCH_SPARSEMEM_ENABLE
  140. select CEVT_R4K
  141. select SYS_HAS_CPU_LOONGSON2
  142. select DMA_NONCOHERENT
  143. select BOOT_ELF32
  144. select BOARD_SCACHE
  145. select HAVE_STD_PC_SERIAL_PORT
  146. select HW_HAS_PCI
  147. select I8259
  148. select ISA
  149. select IRQ_CPU
  150. select SYS_SUPPORTS_32BIT_KERNEL
  151. select SYS_SUPPORTS_64BIT_KERNEL
  152. select SYS_SUPPORTS_LITTLE_ENDIAN
  153. select SYS_SUPPORTS_HIGHMEM
  154. select SYS_HAS_EARLY_PRINTK
  155. select GENERIC_HARDIRQS_NO__DO_IRQ
  156. select GENERIC_ISA_DMA_SUPPORT_BROKEN
  157. select CPU_HAS_WB
  158. help
  159. Lemote Fulong mini-PC board based on the Chinese Loongson-2E CPU and
  160. an FPGA northbridge
  161. config MIPS_ATLAS
  162. bool "MIPS Atlas board"
  163. select BOOT_ELF32
  164. select CEVT_R4K
  165. select DMA_NONCOHERENT
  166. select SYS_HAS_EARLY_PRINTK
  167. select IRQ_CPU
  168. select HW_HAS_PCI
  169. select MIPS_BOARDS_GEN
  170. select MIPS_BONITO64
  171. select PCI_GT64XXX_PCI0
  172. select MIPS_MSC
  173. select RM7000_CPU_SCACHE
  174. select SWAP_IO_SPACE
  175. select SYS_HAS_CPU_MIPS32_R1
  176. select SYS_HAS_CPU_MIPS32_R2
  177. select SYS_HAS_CPU_MIPS64_R1
  178. select SYS_HAS_CPU_NEVADA
  179. select SYS_HAS_CPU_RM7000
  180. select SYS_SUPPORTS_32BIT_KERNEL
  181. select SYS_SUPPORTS_64BIT_KERNEL
  182. select SYS_SUPPORTS_BIG_ENDIAN
  183. select SYS_SUPPORTS_LITTLE_ENDIAN
  184. select SYS_SUPPORTS_MULTITHREADING if EXPERIMENTAL
  185. select SYS_SUPPORTS_SMARTMIPS
  186. select GENERIC_HARDIRQS_NO__DO_IRQ
  187. help
  188. This enables support for the MIPS Technologies Atlas evaluation
  189. board.
  190. config MIPS_MALTA
  191. bool "MIPS Malta board"
  192. select ARCH_MAY_HAVE_PC_FDC
  193. select BOOT_ELF32
  194. select CEVT_R4K
  195. select DMA_NONCOHERENT
  196. select GENERIC_ISA_DMA
  197. select IRQ_CPU
  198. select HW_HAS_PCI
  199. select I8253
  200. select I8259
  201. select MIPS_BOARDS_GEN
  202. select MIPS_BONITO64
  203. select MIPS_CPU_SCACHE
  204. select PCI_GT64XXX_PCI0
  205. select MIPS_MSC
  206. select SWAP_IO_SPACE
  207. select SYS_HAS_CPU_MIPS32_R1
  208. select SYS_HAS_CPU_MIPS32_R2
  209. select SYS_HAS_CPU_MIPS64_R1
  210. select SYS_HAS_CPU_NEVADA
  211. select SYS_HAS_CPU_RM7000
  212. select SYS_HAS_EARLY_PRINTK
  213. select SYS_SUPPORTS_32BIT_KERNEL
  214. select SYS_SUPPORTS_64BIT_KERNEL
  215. select SYS_SUPPORTS_BIG_ENDIAN
  216. select SYS_SUPPORTS_LITTLE_ENDIAN
  217. select SYS_SUPPORTS_MULTITHREADING
  218. select SYS_SUPPORTS_SMARTMIPS
  219. help
  220. This enables support for the MIPS Technologies Malta evaluation
  221. board.
  222. config MIPS_SEAD
  223. bool "MIPS SEAD board"
  224. select CEVT_R4K
  225. select IRQ_CPU
  226. select DMA_NONCOHERENT
  227. select SYS_HAS_EARLY_PRINTK
  228. select MIPS_BOARDS_GEN
  229. select SYS_HAS_CPU_MIPS32_R1
  230. select SYS_HAS_CPU_MIPS32_R2
  231. select SYS_HAS_CPU_MIPS64_R1
  232. select SYS_SUPPORTS_32BIT_KERNEL
  233. select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
  234. select SYS_SUPPORTS_BIG_ENDIAN
  235. select SYS_SUPPORTS_LITTLE_ENDIAN
  236. select SYS_SUPPORTS_SMARTMIPS
  237. help
  238. This enables support for the MIPS Technologies SEAD evaluation
  239. board.
  240. config MIPS_SIM
  241. bool 'MIPS simulator (MIPSsim)'
  242. select CEVT_R4K
  243. select DMA_NONCOHERENT
  244. select SYS_HAS_EARLY_PRINTK
  245. select IRQ_CPU
  246. select BOOT_RAW
  247. select SYS_HAS_CPU_MIPS32_R1
  248. select SYS_HAS_CPU_MIPS32_R2
  249. select SYS_HAS_EARLY_PRINTK
  250. select SYS_SUPPORTS_32BIT_KERNEL
  251. select SYS_SUPPORTS_BIG_ENDIAN
  252. select SYS_SUPPORTS_MULTITHREADING
  253. select SYS_SUPPORTS_LITTLE_ENDIAN
  254. help
  255. This option enables support for MIPS Technologies MIPSsim software
  256. emulator.
  257. config MARKEINS
  258. bool "NEC EMMA2RH Mark-eins"
  259. select CEVT_R4K
  260. select DMA_NONCOHERENT
  261. select HW_HAS_PCI
  262. select IRQ_CPU
  263. select SWAP_IO_SPACE
  264. select SYS_SUPPORTS_32BIT_KERNEL
  265. select SYS_SUPPORTS_BIG_ENDIAN
  266. select SYS_SUPPORTS_LITTLE_ENDIAN
  267. select SYS_HAS_CPU_R5000
  268. help
  269. This enables support for the R5432-based NEC Mark-eins
  270. boards with R5500 CPU.
  271. config MACH_VR41XX
  272. bool "NEC VR4100 series based machines"
  273. select CEVT_R4K
  274. select SYS_HAS_CPU_VR41XX
  275. select GENERIC_HARDIRQS_NO__DO_IRQ
  276. config PNX8550_JBS
  277. bool "Philips PNX8550 based JBS board"
  278. select PNX8550
  279. select SYS_SUPPORTS_LITTLE_ENDIAN
  280. config PNX8550_STB810
  281. bool "Philips PNX8550 based STB810 board"
  282. select PNX8550
  283. select SYS_SUPPORTS_LITTLE_ENDIAN
  284. config PMC_MSP
  285. bool "PMC-Sierra MSP chipsets"
  286. depends on EXPERIMENTAL
  287. select DMA_NONCOHERENT
  288. select SWAP_IO_SPACE
  289. select NO_EXCEPT_FILL
  290. select BOOT_RAW
  291. select SYS_HAS_CPU_MIPS32_R1
  292. select SYS_HAS_CPU_MIPS32_R2
  293. select SYS_SUPPORTS_32BIT_KERNEL
  294. select SYS_SUPPORTS_BIG_ENDIAN
  295. select SYS_SUPPORTS_KGDB
  296. select IRQ_CPU
  297. select SERIAL_8250
  298. select SERIAL_8250_CONSOLE
  299. help
  300. This adds support for the PMC-Sierra family of Multi-Service
  301. Processor System-On-A-Chips. These parts include a number
  302. of integrated peripherals, interfaces and DSPs in addition to
  303. a variety of MIPS cores.
  304. config PMC_YOSEMITE
  305. bool "PMC-Sierra Yosemite eval board"
  306. select CEVT_R4K
  307. select DMA_COHERENT
  308. select HW_HAS_PCI
  309. select IRQ_CPU
  310. select IRQ_CPU_RM7K
  311. select IRQ_CPU_RM9K
  312. select SWAP_IO_SPACE
  313. select SYS_HAS_CPU_RM9000
  314. select SYS_HAS_EARLY_PRINTK
  315. select SYS_SUPPORTS_32BIT_KERNEL
  316. select SYS_SUPPORTS_64BIT_KERNEL
  317. select SYS_SUPPORTS_BIG_ENDIAN
  318. select SYS_SUPPORTS_HIGHMEM
  319. select SYS_SUPPORTS_KGDB
  320. select SYS_SUPPORTS_SMP
  321. help
  322. Yosemite is an evaluation board for the RM9000x2 processor
  323. manufactured by PMC-Sierra.
  324. config QEMU
  325. bool "Qemu"
  326. select CEVT_R4K
  327. select DMA_COHERENT
  328. select GENERIC_ISA_DMA
  329. select HAVE_STD_PC_SERIAL_PORT
  330. select I8253
  331. select I8259
  332. select IRQ_CPU
  333. select ISA
  334. select PCSPEAKER
  335. select SWAP_IO_SPACE
  336. select SYS_HAS_CPU_MIPS32_R1
  337. select SYS_HAS_EARLY_PRINTK
  338. select SYS_SUPPORTS_32BIT_KERNEL
  339. select SYS_SUPPORTS_BIG_ENDIAN
  340. select SYS_SUPPORTS_LITTLE_ENDIAN
  341. select GENERIC_HARDIRQS_NO__DO_IRQ
  342. select NR_CPUS_DEFAULT_1
  343. select SYS_SUPPORTS_SMP
  344. help
  345. Qemu is a software emulator which among other architectures also
  346. can simulate a MIPS32 4Kc system. This patch adds support for the
  347. system architecture that currently is being simulated by Qemu. It
  348. will eventually be removed again when Qemu has the capability to
  349. simulate actual MIPS hardware platforms. More information on Qemu
  350. can be found at http://www.linux-mips.org/wiki/Qemu.
  351. config SGI_IP22
  352. bool "SGI IP22 (Indy/Indigo2)"
  353. select ARC
  354. select ARC32
  355. select BOOT_ELF32
  356. select CEVT_R4K
  357. select DMA_NONCOHERENT
  358. select HW_HAS_EISA
  359. select I8253
  360. select IP22_CPU_SCACHE
  361. select IRQ_CPU
  362. select GENERIC_ISA_DMA_SUPPORT_BROKEN
  363. select SWAP_IO_SPACE
  364. select SYS_HAS_CPU_R4X00
  365. select SYS_HAS_CPU_R5000
  366. select SYS_HAS_EARLY_PRINTK
  367. select SYS_SUPPORTS_32BIT_KERNEL
  368. select SYS_SUPPORTS_64BIT_KERNEL
  369. select SYS_SUPPORTS_BIG_ENDIAN
  370. help
  371. This are the SGI Indy, Challenge S and Indigo2, as well as certain
  372. OEM variants like the Tandem CMN B006S. To compile a Linux kernel
  373. that runs on these, say Y here.
  374. config SGI_IP27
  375. bool "SGI IP27 (Origin200/2000)"
  376. select ARC
  377. select ARC64
  378. select BOOT_ELF64
  379. select DMA_IP27
  380. select SYS_HAS_EARLY_PRINTK
  381. select HW_HAS_PCI
  382. select NR_CPUS_DEFAULT_64
  383. select SYS_HAS_CPU_R10000
  384. select SYS_SUPPORTS_64BIT_KERNEL
  385. select SYS_SUPPORTS_BIG_ENDIAN
  386. select SYS_SUPPORTS_KGDB
  387. select SYS_SUPPORTS_NUMA
  388. select SYS_SUPPORTS_SMP
  389. select GENERIC_HARDIRQS_NO__DO_IRQ
  390. help
  391. This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
  392. workstations. To compile a Linux kernel that runs on these, say Y
  393. here.
  394. config SGI_IP32
  395. bool "SGI IP32 (O2)"
  396. select ARC
  397. select ARC32
  398. select BOOT_ELF32
  399. select CEVT_R4K
  400. select DMA_NONCOHERENT
  401. select HW_HAS_PCI
  402. select IRQ_CPU
  403. select R5000_CPU_SCACHE
  404. select RM7000_CPU_SCACHE
  405. select SYS_HAS_CPU_R5000
  406. select SYS_HAS_CPU_R10000 if BROKEN
  407. select SYS_HAS_CPU_RM7000
  408. select SYS_HAS_CPU_NEVADA
  409. select SYS_SUPPORTS_64BIT_KERNEL
  410. select SYS_SUPPORTS_BIG_ENDIAN
  411. help
  412. If you want this kernel to run on SGI O2 workstation, say Y here.
  413. config SIBYTE_CRHINE
  414. bool "Sibyte BCM91120C-CRhine"
  415. depends on EXPERIMENTAL
  416. select BOOT_ELF32
  417. select DMA_COHERENT
  418. select SIBYTE_BCM1120
  419. select SWAP_IO_SPACE
  420. select SYS_HAS_CPU_SB1
  421. select SYS_SUPPORTS_BIG_ENDIAN
  422. select SYS_SUPPORTS_LITTLE_ENDIAN
  423. config SIBYTE_CARMEL
  424. bool "Sibyte BCM91120x-Carmel"
  425. depends on EXPERIMENTAL
  426. select BOOT_ELF32
  427. select DMA_COHERENT
  428. select SIBYTE_BCM1120
  429. select SWAP_IO_SPACE
  430. select SYS_HAS_CPU_SB1
  431. select SYS_SUPPORTS_BIG_ENDIAN
  432. select SYS_SUPPORTS_LITTLE_ENDIAN
  433. config SIBYTE_CRHONE
  434. bool "Sibyte BCM91125C-CRhone"
  435. depends on EXPERIMENTAL
  436. select BOOT_ELF32
  437. select DMA_COHERENT
  438. select SIBYTE_BCM1125
  439. select SWAP_IO_SPACE
  440. select SYS_HAS_CPU_SB1
  441. select SYS_SUPPORTS_BIG_ENDIAN
  442. select SYS_SUPPORTS_HIGHMEM
  443. select SYS_SUPPORTS_LITTLE_ENDIAN
  444. config SIBYTE_RHONE
  445. bool "Sibyte BCM91125E-Rhone"
  446. depends on EXPERIMENTAL
  447. select BOOT_ELF32
  448. select DMA_COHERENT
  449. select SIBYTE_BCM1125H
  450. select SWAP_IO_SPACE
  451. select SYS_HAS_CPU_SB1
  452. select SYS_SUPPORTS_BIG_ENDIAN
  453. select SYS_SUPPORTS_LITTLE_ENDIAN
  454. config SIBYTE_SWARM
  455. bool "Sibyte BCM91250A-SWARM"
  456. select BOOT_ELF32
  457. select DMA_COHERENT
  458. select NR_CPUS_DEFAULT_2
  459. select SIBYTE_SB1250
  460. select SWAP_IO_SPACE
  461. select SYS_HAS_CPU_SB1
  462. select SYS_SUPPORTS_BIG_ENDIAN
  463. select SYS_SUPPORTS_HIGHMEM
  464. select SYS_SUPPORTS_KGDB
  465. select SYS_SUPPORTS_LITTLE_ENDIAN
  466. config SIBYTE_LITTLESUR
  467. bool "Sibyte BCM91250C2-LittleSur"
  468. depends on EXPERIMENTAL
  469. select BOOT_ELF32
  470. select DMA_COHERENT
  471. select NR_CPUS_DEFAULT_2
  472. select SIBYTE_SB1250
  473. select SWAP_IO_SPACE
  474. select SYS_HAS_CPU_SB1
  475. select SYS_SUPPORTS_BIG_ENDIAN
  476. select SYS_SUPPORTS_HIGHMEM
  477. select SYS_SUPPORTS_LITTLE_ENDIAN
  478. config SIBYTE_SENTOSA
  479. bool "Sibyte BCM91250E-Sentosa"
  480. depends on EXPERIMENTAL
  481. select BOOT_ELF32
  482. select DMA_COHERENT
  483. select NR_CPUS_DEFAULT_2
  484. select SIBYTE_SB1250
  485. select SWAP_IO_SPACE
  486. select SYS_HAS_CPU_SB1
  487. select SYS_SUPPORTS_BIG_ENDIAN
  488. select SYS_SUPPORTS_LITTLE_ENDIAN
  489. config SIBYTE_PTSWARM
  490. bool "Sibyte BCM91250PT-PTSWARM"
  491. depends on EXPERIMENTAL
  492. select BOOT_ELF32
  493. select DMA_COHERENT
  494. select NR_CPUS_DEFAULT_2
  495. select SIBYTE_SB1250
  496. select SWAP_IO_SPACE
  497. select SYS_HAS_CPU_SB1
  498. select SYS_SUPPORTS_BIG_ENDIAN
  499. select SYS_SUPPORTS_HIGHMEM
  500. select SYS_SUPPORTS_LITTLE_ENDIAN
  501. config SIBYTE_BIGSUR
  502. bool "Sibyte BCM91480B-BigSur"
  503. select BOOT_ELF32
  504. select DMA_COHERENT
  505. select NR_CPUS_DEFAULT_4
  506. select SIBYTE_BCM1x80
  507. select SWAP_IO_SPACE
  508. select SYS_HAS_CPU_SB1
  509. select SYS_SUPPORTS_BIG_ENDIAN
  510. select SYS_SUPPORTS_HIGHMEM
  511. select SYS_SUPPORTS_LITTLE_ENDIAN
  512. config SNI_RM
  513. bool "SNI RM200/300/400"
  514. select ARC if CPU_LITTLE_ENDIAN
  515. select ARC32 if CPU_LITTLE_ENDIAN
  516. select ARCH_MAY_HAVE_PC_FDC
  517. select BOOT_ELF32
  518. select CEVT_R4K
  519. select DMA_NONCOHERENT
  520. select GENERIC_ISA_DMA
  521. select HW_HAS_EISA
  522. select HW_HAS_PCI
  523. select IRQ_CPU
  524. select I8253
  525. select I8259
  526. select ISA
  527. select PCSPEAKER
  528. select SWAP_IO_SPACE if CPU_BIG_ENDIAN
  529. select SYS_HAS_CPU_R4X00
  530. select SYS_HAS_CPU_R5000
  531. select SYS_HAS_CPU_R10000
  532. select R5000_CPU_SCACHE
  533. select SYS_HAS_EARLY_PRINTK
  534. select SYS_SUPPORTS_32BIT_KERNEL
  535. select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
  536. select SYS_SUPPORTS_BIG_ENDIAN
  537. select SYS_SUPPORTS_HIGHMEM
  538. select SYS_SUPPORTS_LITTLE_ENDIAN
  539. help
  540. The SNI RM200/300/400 are MIPS-based machines manufactured by
  541. Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
  542. Technology and now in turn merged with Fujitsu. Say Y here to
  543. support this machine type.
  544. config TOSHIBA_JMR3927
  545. bool "Toshiba JMR-TX3927 board"
  546. select CEVT_TXX9
  547. select DMA_NONCOHERENT
  548. select HW_HAS_PCI
  549. select MIPS_TX3927
  550. select IRQ_TXX9
  551. select SWAP_IO_SPACE
  552. select SYS_HAS_CPU_TX39XX
  553. select SYS_SUPPORTS_32BIT_KERNEL
  554. select SYS_SUPPORTS_LITTLE_ENDIAN
  555. select SYS_SUPPORTS_BIG_ENDIAN
  556. select GENERIC_HARDIRQS_NO__DO_IRQ
  557. config TOSHIBA_RBTX4927
  558. bool "Toshiba RBTX49[23]7 board"
  559. select CEVT_R4K
  560. select CEVT_TXX9
  561. select DMA_NONCOHERENT
  562. select HAS_TXX9_SERIAL
  563. select HW_HAS_PCI
  564. select IRQ_CPU
  565. select IRQ_TXX9
  566. select I8259 if TOSHIBA_FPCIB0
  567. select SWAP_IO_SPACE
  568. select SYS_HAS_CPU_TX49XX
  569. select SYS_SUPPORTS_32BIT_KERNEL
  570. select SYS_SUPPORTS_64BIT_KERNEL
  571. select SYS_SUPPORTS_LITTLE_ENDIAN
  572. select SYS_SUPPORTS_BIG_ENDIAN
  573. select SYS_SUPPORTS_KGDB
  574. select GENERIC_HARDIRQS_NO__DO_IRQ
  575. help
  576. This Toshiba board is based on the TX4927 processor. Say Y here to
  577. support this machine type
  578. config TOSHIBA_RBTX4938
  579. bool "Toshiba RBTX4938 board"
  580. select CEVT_R4K
  581. select CEVT_TXX9
  582. select DMA_NONCOHERENT
  583. select HAS_TXX9_SERIAL
  584. select HW_HAS_PCI
  585. select IRQ_CPU
  586. select IRQ_TXX9
  587. select SWAP_IO_SPACE
  588. select SYS_HAS_CPU_TX49XX
  589. select SYS_SUPPORTS_32BIT_KERNEL
  590. select SYS_SUPPORTS_LITTLE_ENDIAN
  591. select SYS_SUPPORTS_BIG_ENDIAN
  592. select SYS_SUPPORTS_KGDB
  593. select GENERIC_HARDIRQS_NO__DO_IRQ
  594. select GENERIC_GPIO
  595. help
  596. This Toshiba board is based on the TX4938 processor. Say Y here to
  597. support this machine type
  598. config WR_PPMC
  599. bool "Wind River PPMC board"
  600. select CEVT_R4K
  601. select IRQ_CPU
  602. select BOOT_ELF32
  603. select DMA_NONCOHERENT
  604. select HW_HAS_PCI
  605. select PCI_GT64XXX_PCI0
  606. select SWAP_IO_SPACE
  607. select SYS_HAS_CPU_MIPS32_R1
  608. select SYS_HAS_CPU_MIPS32_R2
  609. select SYS_HAS_CPU_MIPS64_R1
  610. select SYS_HAS_CPU_NEVADA
  611. select SYS_HAS_CPU_RM7000
  612. select SYS_SUPPORTS_32BIT_KERNEL
  613. select SYS_SUPPORTS_64BIT_KERNEL
  614. select SYS_SUPPORTS_BIG_ENDIAN
  615. select SYS_SUPPORTS_LITTLE_ENDIAN
  616. help
  617. This enables support for the Wind River MIPS32 4KC PPMC evaluation
  618. board, which is based on GT64120 bridge chip.
  619. endchoice
  620. source "arch/mips/au1000/Kconfig"
  621. source "arch/mips/jazz/Kconfig"
  622. source "arch/mips/lasat/Kconfig"
  623. source "arch/mips/pmc-sierra/Kconfig"
  624. source "arch/mips/sgi-ip27/Kconfig"
  625. source "arch/mips/sibyte/Kconfig"
  626. source "arch/mips/tx4927/Kconfig"
  627. source "arch/mips/tx4938/Kconfig"
  628. source "arch/mips/vr41xx/Kconfig"
  629. endmenu
  630. config RWSEM_GENERIC_SPINLOCK
  631. bool
  632. default y
  633. config RWSEM_XCHGADD_ALGORITHM
  634. bool
  635. config ARCH_HAS_ILOG2_U32
  636. bool
  637. default n
  638. config ARCH_HAS_ILOG2_U64
  639. bool
  640. default n
  641. config GENERIC_FIND_NEXT_BIT
  642. bool
  643. default y
  644. config GENERIC_HWEIGHT
  645. bool
  646. default y
  647. config GENERIC_CALIBRATE_DELAY
  648. bool
  649. default y
  650. config GENERIC_CLOCKEVENTS
  651. bool
  652. default y
  653. config GENERIC_TIME
  654. bool
  655. default y
  656. config GENERIC_CMOS_UPDATE
  657. bool
  658. default y
  659. config SCHED_NO_NO_OMIT_FRAME_POINTER
  660. bool
  661. default y
  662. config GENERIC_HARDIRQS_NO__DO_IRQ
  663. bool
  664. default n
  665. #
  666. # Select some configuration options automatically based on user selections.
  667. #
  668. config ARC
  669. bool
  670. config ARCH_MAY_HAVE_PC_FDC
  671. bool
  672. config BOOT_RAW
  673. bool
  674. config CEVT_BCM1480
  675. bool
  676. config CEVT_GT641XX
  677. bool
  678. config CEVT_R4K
  679. bool
  680. config CEVT_SB1250
  681. bool
  682. config CEVT_TXX9
  683. bool
  684. config CSRC_BCM1480
  685. bool
  686. config CSRC_SB1250
  687. bool
  688. config CFE
  689. bool
  690. config DMA_COHERENT
  691. bool
  692. config DMA_IP27
  693. bool
  694. config DMA_IP32
  695. bool
  696. select DMA_NEED_PCI_MAP_STATE
  697. config DMA_NONCOHERENT
  698. bool
  699. select DMA_NEED_PCI_MAP_STATE
  700. config DMA_NEED_PCI_MAP_STATE
  701. bool
  702. config EARLY_PRINTK
  703. bool "Early printk" if EMBEDDED && DEBUG_KERNEL
  704. depends on SYS_HAS_EARLY_PRINTK
  705. default y
  706. help
  707. This option enables special console drivers which allow the kernel
  708. to print messages very early in the bootup process.
  709. This is useful for kernel debugging when your machine crashes very
  710. early before the console code is initialized. For normal operation,
  711. it is not recommended because it looks ugly on some machines and
  712. doesn't cooperate with an X server. You should normally say N here,
  713. unless you want to debug such a crash.
  714. config SYS_HAS_EARLY_PRINTK
  715. bool
  716. config HOTPLUG_CPU
  717. bool
  718. default n
  719. config I8259
  720. bool
  721. config MIPS_BONITO64
  722. bool
  723. config MIPS_MSC
  724. bool
  725. config MIPS_NILE4
  726. bool
  727. config MIPS_DISABLE_OBSOLETE_IDE
  728. bool
  729. config NO_IOPORT
  730. def_bool n
  731. config GENERIC_ISA_DMA
  732. bool
  733. select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
  734. config GENERIC_ISA_DMA_SUPPORT_BROKEN
  735. bool
  736. select GENERIC_ISA_DMA
  737. config GENERIC_GPIO
  738. bool
  739. #
  740. # Endianess selection. Sufficiently obscure so many users don't know what to
  741. # answer,so we try hard to limit the available choices. Also the use of a
  742. # choice statement should be more obvious to the user.
  743. #
  744. choice
  745. prompt "Endianess selection"
  746. help
  747. Some MIPS machines can be configured for either little or big endian
  748. byte order. These modes require different kernels and a different
  749. Linux distribution. In general there is one preferred byteorder for a
  750. particular system but some systems are just as commonly used in the
  751. one or the other endianness.
  752. config CPU_BIG_ENDIAN
  753. bool "Big endian"
  754. depends on SYS_SUPPORTS_BIG_ENDIAN
  755. config CPU_LITTLE_ENDIAN
  756. bool "Little endian"
  757. depends on SYS_SUPPORTS_LITTLE_ENDIAN
  758. help
  759. endchoice
  760. config SYS_SUPPORTS_APM_EMULATION
  761. bool
  762. config SYS_SUPPORTS_BIG_ENDIAN
  763. bool
  764. config SYS_SUPPORTS_LITTLE_ENDIAN
  765. bool
  766. config IRQ_CPU
  767. bool
  768. config IRQ_CPU_RM7K
  769. bool
  770. config IRQ_CPU_RM9K
  771. bool
  772. config IRQ_MSP_SLP
  773. bool
  774. config IRQ_MSP_CIC
  775. bool
  776. config IRQ_TXX9
  777. bool
  778. config IRQ_GT641XX
  779. bool
  780. config MIPS_BOARDS_GEN
  781. bool
  782. config PCI_GT64XXX_PCI0
  783. bool
  784. config NO_EXCEPT_FILL
  785. bool
  786. config MIPS_TX3927
  787. bool
  788. select HAS_TXX9_SERIAL
  789. config MIPS_RM9122
  790. bool
  791. select SERIAL_RM9000
  792. config PNX8550
  793. bool
  794. select SOC_PNX8550
  795. config SOC_PNX8550
  796. bool
  797. select DMA_NONCOHERENT
  798. select HW_HAS_PCI
  799. select SYS_HAS_CPU_MIPS32_R1
  800. select SYS_HAS_EARLY_PRINTK
  801. select SYS_SUPPORTS_32BIT_KERNEL
  802. select GENERIC_HARDIRQS_NO__DO_IRQ
  803. select SYS_SUPPORTS_KGDB
  804. select GENERIC_GPIO
  805. config SWAP_IO_SPACE
  806. bool
  807. config EMMA2RH
  808. bool
  809. depends on MARKEINS
  810. default y
  811. config SERIAL_RM9000
  812. bool
  813. config ARC32
  814. bool
  815. config BOOT_ELF32
  816. bool
  817. config MIPS_L1_CACHE_SHIFT
  818. int
  819. default "4" if MACH_DECSTATION
  820. default "7" if SGI_IP27 || SNI_RM
  821. default "4" if PMC_MSP4200_EVAL
  822. default "5"
  823. config HAVE_STD_PC_SERIAL_PORT
  824. bool
  825. config ARC_CONSOLE
  826. bool "ARC console support"
  827. depends on SGI_IP22 || (SNI_RM && CPU_LITTLE_ENDIAN)
  828. config ARC_MEMORY
  829. bool
  830. depends on MACH_JAZZ || SNI_RM || SGI_IP32
  831. default y
  832. config ARC_PROMLIB
  833. bool
  834. depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP32
  835. default y
  836. config ARC64
  837. bool
  838. config BOOT_ELF64
  839. bool
  840. menu "CPU selection"
  841. source "kernel/time/Kconfig"
  842. choice
  843. prompt "CPU type"
  844. default CPU_R4X00
  845. config CPU_LOONGSON2
  846. bool "Loongson 2"
  847. depends on SYS_HAS_CPU_LOONGSON2
  848. select CPU_SUPPORTS_32BIT_KERNEL
  849. select CPU_SUPPORTS_64BIT_KERNEL
  850. select CPU_SUPPORTS_HIGHMEM
  851. help
  852. The Loongson 2E processor implements the MIPS III instruction set
  853. with many extensions.
  854. config CPU_MIPS32_R1
  855. bool "MIPS32 Release 1"
  856. depends on SYS_HAS_CPU_MIPS32_R1
  857. select CPU_HAS_LLSC
  858. select CPU_HAS_PREFETCH
  859. select CPU_SUPPORTS_32BIT_KERNEL
  860. select CPU_SUPPORTS_HIGHMEM
  861. help
  862. Choose this option to build a kernel for release 1 or later of the
  863. MIPS32 architecture. Most modern embedded systems with a 32-bit
  864. MIPS processor are based on a MIPS32 processor. If you know the
  865. specific type of processor in your system, choose those that one
  866. otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
  867. Release 2 of the MIPS32 architecture is available since several
  868. years so chances are you even have a MIPS32 Release 2 processor
  869. in which case you should choose CPU_MIPS32_R2 instead for better
  870. performance.
  871. config CPU_MIPS32_R2
  872. bool "MIPS32 Release 2"
  873. depends on SYS_HAS_CPU_MIPS32_R2
  874. select CPU_HAS_LLSC
  875. select CPU_HAS_PREFETCH
  876. select CPU_SUPPORTS_32BIT_KERNEL
  877. select CPU_SUPPORTS_HIGHMEM
  878. help
  879. Choose this option to build a kernel for release 2 or later of the
  880. MIPS32 architecture. Most modern embedded systems with a 32-bit
  881. MIPS processor are based on a MIPS32 processor. If you know the
  882. specific type of processor in your system, choose those that one
  883. otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
  884. config CPU_MIPS64_R1
  885. bool "MIPS64 Release 1"
  886. depends on SYS_HAS_CPU_MIPS64_R1
  887. select CPU_HAS_LLSC
  888. select CPU_HAS_PREFETCH
  889. select CPU_SUPPORTS_32BIT_KERNEL
  890. select CPU_SUPPORTS_64BIT_KERNEL
  891. select CPU_SUPPORTS_HIGHMEM
  892. help
  893. Choose this option to build a kernel for release 1 or later of the
  894. MIPS64 architecture. Many modern embedded systems with a 64-bit
  895. MIPS processor are based on a MIPS64 processor. If you know the
  896. specific type of processor in your system, choose those that one
  897. otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
  898. Release 2 of the MIPS64 architecture is available since several
  899. years so chances are you even have a MIPS64 Release 2 processor
  900. in which case you should choose CPU_MIPS64_R2 instead for better
  901. performance.
  902. config CPU_MIPS64_R2
  903. bool "MIPS64 Release 2"
  904. depends on SYS_HAS_CPU_MIPS64_R2
  905. select CPU_HAS_LLSC
  906. select CPU_HAS_PREFETCH
  907. select CPU_SUPPORTS_32BIT_KERNEL
  908. select CPU_SUPPORTS_64BIT_KERNEL
  909. select CPU_SUPPORTS_HIGHMEM
  910. help
  911. Choose this option to build a kernel for release 2 or later of the
  912. MIPS64 architecture. Many modern embedded systems with a 64-bit
  913. MIPS processor are based on a MIPS64 processor. If you know the
  914. specific type of processor in your system, choose those that one
  915. otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
  916. config CPU_R3000
  917. bool "R3000"
  918. depends on SYS_HAS_CPU_R3000
  919. select CPU_HAS_WB
  920. select CPU_SUPPORTS_32BIT_KERNEL
  921. select CPU_SUPPORTS_HIGHMEM
  922. help
  923. Please make sure to pick the right CPU type. Linux/MIPS is not
  924. designed to be generic, i.e. Kernels compiled for R3000 CPUs will
  925. *not* work on R4000 machines and vice versa. However, since most
  926. of the supported machines have an R4000 (or similar) CPU, R4x00
  927. might be a safe bet. If the resulting kernel does not work,
  928. try to recompile with R3000.
  929. config CPU_TX39XX
  930. bool "R39XX"
  931. depends on SYS_HAS_CPU_TX39XX
  932. select CPU_SUPPORTS_32BIT_KERNEL
  933. config CPU_VR41XX
  934. bool "R41xx"
  935. depends on SYS_HAS_CPU_VR41XX
  936. select CPU_SUPPORTS_32BIT_KERNEL
  937. select CPU_SUPPORTS_64BIT_KERNEL
  938. help
  939. The options selects support for the NEC VR4100 series of processors.
  940. Only choose this option if you have one of these processors as a
  941. kernel built with this option will not run on any other type of
  942. processor or vice versa.
  943. config CPU_R4300
  944. bool "R4300"
  945. depends on SYS_HAS_CPU_R4300
  946. select CPU_HAS_LLSC
  947. select CPU_SUPPORTS_32BIT_KERNEL
  948. select CPU_SUPPORTS_64BIT_KERNEL
  949. help
  950. MIPS Technologies R4300-series processors.
  951. config CPU_R4X00
  952. bool "R4x00"
  953. depends on SYS_HAS_CPU_R4X00
  954. select CPU_HAS_LLSC
  955. select CPU_SUPPORTS_32BIT_KERNEL
  956. select CPU_SUPPORTS_64BIT_KERNEL
  957. help
  958. MIPS Technologies R4000-series processors other than 4300, including
  959. the R4000, R4400, R4600, and 4700.
  960. config CPU_TX49XX
  961. bool "R49XX"
  962. depends on SYS_HAS_CPU_TX49XX
  963. select CPU_HAS_LLSC
  964. select CPU_HAS_PREFETCH
  965. select CPU_SUPPORTS_32BIT_KERNEL
  966. select CPU_SUPPORTS_64BIT_KERNEL
  967. config CPU_R5000
  968. bool "R5000"
  969. depends on SYS_HAS_CPU_R5000
  970. select CPU_HAS_LLSC
  971. select CPU_SUPPORTS_32BIT_KERNEL
  972. select CPU_SUPPORTS_64BIT_KERNEL
  973. help
  974. MIPS Technologies R5000-series processors other than the Nevada.
  975. config CPU_R5432
  976. bool "R5432"
  977. depends on SYS_HAS_CPU_R5432
  978. select CPU_HAS_LLSC
  979. select CPU_SUPPORTS_32BIT_KERNEL
  980. select CPU_SUPPORTS_64BIT_KERNEL
  981. config CPU_R6000
  982. bool "R6000"
  983. depends on EXPERIMENTAL
  984. select CPU_HAS_LLSC
  985. depends on SYS_HAS_CPU_R6000
  986. select CPU_SUPPORTS_32BIT_KERNEL
  987. help
  988. MIPS Technologies R6000 and R6000A series processors. Note these
  989. processors are extremely rare and the support for them is incomplete.
  990. config CPU_NEVADA
  991. bool "RM52xx"
  992. depends on SYS_HAS_CPU_NEVADA
  993. select CPU_HAS_LLSC
  994. select CPU_SUPPORTS_32BIT_KERNEL
  995. select CPU_SUPPORTS_64BIT_KERNEL
  996. help
  997. QED / PMC-Sierra RM52xx-series ("Nevada") processors.
  998. config CPU_R8000
  999. bool "R8000"
  1000. depends on EXPERIMENTAL
  1001. depends on SYS_HAS_CPU_R8000
  1002. select CPU_HAS_LLSC
  1003. select CPU_HAS_PREFETCH
  1004. select CPU_SUPPORTS_64BIT_KERNEL
  1005. help
  1006. MIPS Technologies R8000 processors. Note these processors are
  1007. uncommon and the support for them is incomplete.
  1008. config CPU_R10000
  1009. bool "R10000"
  1010. depends on SYS_HAS_CPU_R10000
  1011. select CPU_HAS_LLSC
  1012. select CPU_HAS_PREFETCH
  1013. select CPU_SUPPORTS_32BIT_KERNEL
  1014. select CPU_SUPPORTS_64BIT_KERNEL
  1015. select CPU_SUPPORTS_HIGHMEM
  1016. help
  1017. MIPS Technologies R10000-series processors.
  1018. config CPU_RM7000
  1019. bool "RM7000"
  1020. depends on SYS_HAS_CPU_RM7000
  1021. select CPU_HAS_LLSC
  1022. select CPU_HAS_PREFETCH
  1023. select CPU_SUPPORTS_32BIT_KERNEL
  1024. select CPU_SUPPORTS_64BIT_KERNEL
  1025. select CPU_SUPPORTS_HIGHMEM
  1026. config CPU_RM9000
  1027. bool "RM9000"
  1028. depends on SYS_HAS_CPU_RM9000
  1029. select CPU_HAS_LLSC
  1030. select CPU_HAS_PREFETCH
  1031. select CPU_SUPPORTS_32BIT_KERNEL
  1032. select CPU_SUPPORTS_64BIT_KERNEL
  1033. select CPU_SUPPORTS_HIGHMEM
  1034. select WEAK_ORDERING
  1035. config CPU_SB1
  1036. bool "SB1"
  1037. depends on SYS_HAS_CPU_SB1
  1038. select CPU_HAS_LLSC
  1039. select CPU_SUPPORTS_32BIT_KERNEL
  1040. select CPU_SUPPORTS_64BIT_KERNEL
  1041. select CPU_SUPPORTS_HIGHMEM
  1042. select WEAK_ORDERING
  1043. endchoice
  1044. config SYS_HAS_CPU_LOONGSON2
  1045. bool
  1046. config SYS_HAS_CPU_MIPS32_R1
  1047. bool
  1048. config SYS_HAS_CPU_MIPS32_R2
  1049. bool
  1050. config SYS_HAS_CPU_MIPS64_R1
  1051. bool
  1052. config SYS_HAS_CPU_MIPS64_R2
  1053. bool
  1054. config SYS_HAS_CPU_R3000
  1055. bool
  1056. config SYS_HAS_CPU_TX39XX
  1057. bool
  1058. config SYS_HAS_CPU_VR41XX
  1059. bool
  1060. config SYS_HAS_CPU_R4300
  1061. bool
  1062. config SYS_HAS_CPU_R4X00
  1063. bool
  1064. config SYS_HAS_CPU_TX49XX
  1065. bool
  1066. config SYS_HAS_CPU_R5000
  1067. bool
  1068. config SYS_HAS_CPU_R5432
  1069. bool
  1070. config SYS_HAS_CPU_R6000
  1071. bool
  1072. config SYS_HAS_CPU_NEVADA
  1073. bool
  1074. config SYS_HAS_CPU_R8000
  1075. bool
  1076. config SYS_HAS_CPU_R10000
  1077. bool
  1078. config SYS_HAS_CPU_RM7000
  1079. bool
  1080. config SYS_HAS_CPU_RM9000
  1081. bool
  1082. config SYS_HAS_CPU_SB1
  1083. bool
  1084. #
  1085. # CPU may reorder R->R, R->W, W->R, W->W
  1086. # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
  1087. #
  1088. config WEAK_ORDERING
  1089. bool
  1090. #
  1091. # CPU may reorder reads and writes beyond LL/SC
  1092. # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
  1093. #
  1094. config WEAK_REORDERING_BEYOND_LLSC
  1095. bool
  1096. endmenu
  1097. #
  1098. # These two indicate any level of the MIPS32 and MIPS64 architecture
  1099. #
  1100. config CPU_MIPS32
  1101. bool
  1102. default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
  1103. config CPU_MIPS64
  1104. bool
  1105. default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
  1106. #
  1107. # These two indicate the revision of the architecture, either Release 1 or Release 2
  1108. #
  1109. config CPU_MIPSR1
  1110. bool
  1111. default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
  1112. config CPU_MIPSR2
  1113. bool
  1114. default y if CPU_MIPS32_R2 || CPU_MIPS64_R2
  1115. config SYS_SUPPORTS_32BIT_KERNEL
  1116. bool
  1117. config SYS_SUPPORTS_64BIT_KERNEL
  1118. bool
  1119. config CPU_SUPPORTS_32BIT_KERNEL
  1120. bool
  1121. config CPU_SUPPORTS_64BIT_KERNEL
  1122. bool
  1123. menu "Kernel type"
  1124. choice
  1125. prompt "Kernel code model"
  1126. help
  1127. You should only select this option if you have a workload that
  1128. actually benefits from 64-bit processing or if your machine has
  1129. large memory. You will only be presented a single option in this
  1130. menu if your system does not support both 32-bit and 64-bit kernels.
  1131. config 32BIT
  1132. bool "32-bit kernel"
  1133. depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
  1134. select TRAD_SIGNALS
  1135. help
  1136. Select this option if you want to build a 32-bit kernel.
  1137. config 64BIT
  1138. bool "64-bit kernel"
  1139. depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
  1140. help
  1141. Select this option if you want to build a 64-bit kernel.
  1142. endchoice
  1143. choice
  1144. prompt "Kernel page size"
  1145. default PAGE_SIZE_4KB
  1146. config PAGE_SIZE_4KB
  1147. bool "4kB"
  1148. help
  1149. This option select the standard 4kB Linux page size. On some
  1150. R3000-family processors this is the only available page size. Using
  1151. 4kB page size will minimize memory consumption and is therefore
  1152. recommended for low memory systems.
  1153. config PAGE_SIZE_8KB
  1154. bool "8kB"
  1155. depends on EXPERIMENTAL && CPU_R8000
  1156. help
  1157. Using 8kB page size will result in higher performance kernel at
  1158. the price of higher memory consumption. This option is available
  1159. only on the R8000 processor. Not that at the time of this writing
  1160. this option is still high experimental; there are also issues with
  1161. compatibility of user applications.
  1162. config PAGE_SIZE_16KB
  1163. bool "16kB"
  1164. depends on !CPU_R3000 && !CPU_TX39XX
  1165. help
  1166. Using 16kB page size will result in higher performance kernel at
  1167. the price of higher memory consumption. This option is available on
  1168. all non-R3000 family processors. Note that you will need a suitable
  1169. Linux distribution to support this.
  1170. config PAGE_SIZE_64KB
  1171. bool "64kB"
  1172. depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
  1173. help
  1174. Using 64kB page size will result in higher performance kernel at
  1175. the price of higher memory consumption. This option is available on
  1176. all non-R3000 family processor. Not that at the time of this
  1177. writing this option is still high experimental.
  1178. endchoice
  1179. config BOARD_SCACHE
  1180. bool
  1181. config IP22_CPU_SCACHE
  1182. bool
  1183. select BOARD_SCACHE
  1184. #
  1185. # Support for a MIPS32 / MIPS64 style S-caches
  1186. #
  1187. config MIPS_CPU_SCACHE
  1188. bool
  1189. select BOARD_SCACHE
  1190. config R5000_CPU_SCACHE
  1191. bool
  1192. select BOARD_SCACHE
  1193. config RM7000_CPU_SCACHE
  1194. bool
  1195. select BOARD_SCACHE
  1196. config SIBYTE_DMA_PAGEOPS
  1197. bool "Use DMA to clear/copy pages"
  1198. depends on CPU_SB1
  1199. help
  1200. Instead of using the CPU to zero and copy pages, use a Data Mover
  1201. channel. These DMA channels are otherwise unused by the standard
  1202. SiByte Linux port. Seems to give a small performance benefit.
  1203. config CPU_HAS_PREFETCH
  1204. bool
  1205. choice
  1206. prompt "MIPS MT options"
  1207. config MIPS_MT_DISABLED
  1208. bool "Disable multithreading support."
  1209. help
  1210. Use this option if your workload can't take advantage of
  1211. MIPS hardware multithreading support. On systems that don't have
  1212. the option of an MT-enabled processor this option will be the only
  1213. option in this menu.
  1214. config MIPS_MT_SMP
  1215. bool "Use 1 TC on each available VPE for SMP"
  1216. depends on SYS_SUPPORTS_MULTITHREADING
  1217. select CPU_MIPSR2_IRQ_VI
  1218. select CPU_MIPSR2_IRQ_EI
  1219. select CPU_MIPSR2_SRS
  1220. select MIPS_MT
  1221. select NR_CPUS_DEFAULT_2
  1222. select SMP
  1223. select SYS_SUPPORTS_SMP
  1224. help
  1225. This is a kernel model which is also known a VSMP or lately
  1226. has been marketesed into SMVP.
  1227. config MIPS_MT_SMTC
  1228. bool "SMTC: Use all TCs on all VPEs for SMP"
  1229. depends on CPU_MIPS32_R2
  1230. #depends on CPU_MIPS64_R2 # once there is hardware ...
  1231. depends on SYS_SUPPORTS_MULTITHREADING
  1232. select GENERIC_CLOCKEVENTS_BROADCAST
  1233. select CPU_MIPSR2_IRQ_VI
  1234. select CPU_MIPSR2_IRQ_EI
  1235. select CPU_MIPSR2_SRS
  1236. select MIPS_MT
  1237. select NR_CPUS_DEFAULT_8
  1238. select SMP
  1239. select SYS_SUPPORTS_SMP
  1240. help
  1241. This is a kernel model which is known a SMTC or lately has been
  1242. marketesed into SMVP.
  1243. endchoice
  1244. config MIPS_MT
  1245. bool
  1246. config SYS_SUPPORTS_MULTITHREADING
  1247. bool
  1248. config MIPS_MT_FPAFF
  1249. bool "Dynamic FPU affinity for FP-intensive threads"
  1250. default y
  1251. depends on MIPS_MT_SMP || MIPS_MT_SMTC
  1252. config MIPS_VPE_LOADER
  1253. bool "VPE loader support."
  1254. depends on SYS_SUPPORTS_MULTITHREADING
  1255. select CPU_MIPSR2_IRQ_VI
  1256. select CPU_MIPSR2_IRQ_EI
  1257. select CPU_MIPSR2_SRS
  1258. select MIPS_MT
  1259. help
  1260. Includes a loader for loading an elf relocatable object
  1261. onto another VPE and running it.
  1262. config MIPS_MT_SMTC_INSTANT_REPLAY
  1263. bool "Low-latency Dispatch of Deferred SMTC IPIs"
  1264. depends on MIPS_MT_SMTC && !PREEMPT
  1265. default y
  1266. help
  1267. SMTC pseudo-interrupts between TCs are deferred and queued
  1268. if the target TC is interrupt-inhibited (IXMT). In the first
  1269. SMTC prototypes, these queued IPIs were serviced on return
  1270. to user mode, or on entry into the kernel idle loop. The
  1271. INSTANT_REPLAY option dispatches them as part of local_irq_restore()
  1272. processing, which adds runtime overhead (hence the option to turn
  1273. it off), but ensures that IPIs are handled promptly even under
  1274. heavy I/O interrupt load.
  1275. config MIPS_MT_SMTC_IM_BACKSTOP
  1276. bool "Use per-TC register bits as backstop for inhibited IM bits"
  1277. depends on MIPS_MT_SMTC
  1278. default y
  1279. help
  1280. To support multiple TC microthreads acting as "CPUs" within
  1281. a VPE, VPE-wide interrupt mask bits must be specially manipulated
  1282. during interrupt handling. To support legacy drivers and interrupt
  1283. controller management code, SMTC has a "backstop" to track and
  1284. if necessary restore the interrupt mask. This has some performance
  1285. impact on interrupt service overhead. Disable it only if you know
  1286. what you are doing.
  1287. config MIPS_MT_SMTC_IRQAFF
  1288. bool "Support IRQ affinity API"
  1289. depends on MIPS_MT_SMTC
  1290. default n
  1291. help
  1292. Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
  1293. for SMTC Linux kernel. Requires platform support, of which
  1294. an example can be found in the MIPS kernel i8259 and Malta
  1295. platform code. It is recommended that MIPS_MT_SMTC_INSTANT_REPLAY
  1296. be enabled if MIPS_MT_SMTC_IRQAFF is used. Adds overhead to
  1297. interrupt dispatch, and should be used only if you know what
  1298. you are doing.
  1299. config MIPS_VPE_LOADER_TOM
  1300. bool "Load VPE program into memory hidden from linux"
  1301. depends on MIPS_VPE_LOADER
  1302. default y
  1303. help
  1304. The loader can use memory that is present but has been hidden from
  1305. Linux using the kernel command line option "mem=xxMB". It's up to
  1306. you to ensure the amount you put in the option and the space your
  1307. program requires is less or equal to the amount physically present.
  1308. # this should possibly be in drivers/char, but it is rather cpu related. Hmmm
  1309. config MIPS_VPE_APSP_API
  1310. bool "Enable support for AP/SP API (RTLX)"
  1311. depends on MIPS_VPE_LOADER
  1312. help
  1313. config MIPS_APSP_KSPD
  1314. bool "Enable KSPD"
  1315. depends on MIPS_VPE_APSP_API
  1316. default y
  1317. help
  1318. KSPD is a kernel daemon that accepts syscall requests from the SP
  1319. side, actions them and returns the results. It also handles the
  1320. "exit" syscall notifying other kernel modules the SP program is
  1321. exiting. You probably want to say yes here.
  1322. config SB1_PASS_1_WORKAROUNDS
  1323. bool
  1324. depends on CPU_SB1_PASS_1
  1325. default y
  1326. config SB1_PASS_2_WORKAROUNDS
  1327. bool
  1328. depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
  1329. default y
  1330. config SB1_PASS_2_1_WORKAROUNDS
  1331. bool
  1332. depends on CPU_SB1 && CPU_SB1_PASS_2
  1333. default y
  1334. config 64BIT_PHYS_ADDR
  1335. bool
  1336. config CPU_HAS_LLSC
  1337. bool
  1338. config CPU_HAS_SMARTMIPS
  1339. depends on SYS_SUPPORTS_SMARTMIPS
  1340. bool "Support for the SmartMIPS ASE"
  1341. help
  1342. SmartMIPS is a extension of the MIPS32 architecture aimed at
  1343. increased security at both hardware and software level for
  1344. smartcards. Enabling this option will allow proper use of the
  1345. SmartMIPS instructions by Linux applications. However a kernel with
  1346. this option will not work on a MIPS core without SmartMIPS core. If
  1347. you don't know you probably don't have SmartMIPS and should say N
  1348. here.
  1349. config CPU_HAS_WB
  1350. bool
  1351. config 64BIT_CONTEXT
  1352. bool "Save 64bit integer registers"
  1353. depends on 32BIT && CPU_LOONGSON2
  1354. help
  1355. Loongson2 CPU is 64bit , when used in 32BIT mode, its integer
  1356. registers can still be accessed as 64bit, mainly for multimedia
  1357. instructions. We must have all 64bit save/restored to make sure
  1358. those instructions to get correct result.
  1359. #
  1360. # Vectored interrupt mode is an R2 feature
  1361. #
  1362. config CPU_MIPSR2_IRQ_VI
  1363. bool
  1364. #
  1365. # Extended interrupt mode is an R2 feature
  1366. #
  1367. config CPU_MIPSR2_IRQ_EI
  1368. bool
  1369. #
  1370. # Shadow registers are an R2 feature
  1371. #
  1372. config CPU_MIPSR2_SRS
  1373. bool
  1374. config CPU_HAS_SYNC
  1375. bool
  1376. depends on !CPU_R3000
  1377. default y
  1378. config GENERIC_CLOCKEVENTS_BROADCAST
  1379. bool
  1380. #
  1381. # Use the generic interrupt handling code in kernel/irq/:
  1382. #
  1383. config GENERIC_HARDIRQS
  1384. bool
  1385. default y
  1386. config GENERIC_IRQ_PROBE
  1387. bool
  1388. default y
  1389. config IRQ_PER_CPU
  1390. bool
  1391. #
  1392. # - Highmem only makes sense for the 32-bit kernel.
  1393. # - The current highmem code will only work properly on physically indexed
  1394. # caches such as R3000, SB1, R7000 or those that look like they're virtually
  1395. # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
  1396. # moment we protect the user and offer the highmem option only on machines
  1397. # where it's known to be safe. This will not offer highmem on a few systems
  1398. # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
  1399. # indexed CPUs but we're playing safe.
  1400. # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
  1401. # know they might have memory configurations that could make use of highmem
  1402. # support.
  1403. #
  1404. config HIGHMEM
  1405. bool "High Memory Support"
  1406. depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
  1407. config CPU_SUPPORTS_HIGHMEM
  1408. bool
  1409. config SYS_SUPPORTS_HIGHMEM
  1410. bool
  1411. config SYS_SUPPORTS_SMARTMIPS
  1412. bool
  1413. config ARCH_FLATMEM_ENABLE
  1414. def_bool y
  1415. depends on !NUMA
  1416. config ARCH_DISCONTIGMEM_ENABLE
  1417. bool
  1418. default y if SGI_IP27
  1419. help
  1420. Say Y to support efficient handling of discontiguous physical memory,
  1421. for architectures which are either NUMA (Non-Uniform Memory Access)
  1422. or have huge holes in the physical address space for other reasons.
  1423. See <file:Documentation/vm/numa> for more.
  1424. config ARCH_SPARSEMEM_ENABLE
  1425. bool
  1426. select SPARSEMEM_STATIC
  1427. config NUMA
  1428. bool "NUMA Support"
  1429. depends on SYS_SUPPORTS_NUMA
  1430. help
  1431. Say Y to compile the kernel to support NUMA (Non-Uniform Memory
  1432. Access). This option improves performance on systems with more
  1433. than two nodes; on two node systems it is generally better to
  1434. leave it disabled; on single node systems disable this option
  1435. disabled.
  1436. config SYS_SUPPORTS_NUMA
  1437. bool
  1438. config NODES_SHIFT
  1439. int
  1440. default "6"
  1441. depends on NEED_MULTIPLE_NODES
  1442. source "mm/Kconfig"
  1443. config SMP
  1444. bool "Multi-Processing support"
  1445. depends on SYS_SUPPORTS_SMP
  1446. select IRQ_PER_CPU
  1447. help
  1448. This enables support for systems with more than one CPU. If you have
  1449. a system with only one CPU, like most personal computers, say N. If
  1450. you have a system with more than one CPU, say Y.
  1451. If you say N here, the kernel will run on single and multiprocessor
  1452. machines, but will use only one CPU of a multiprocessor machine. If
  1453. you say Y here, the kernel will run on many, but not all,
  1454. singleprocessor machines. On a singleprocessor machine, the kernel
  1455. will run faster if you say N here.
  1456. People using multiprocessor machines who say Y here should also say
  1457. Y to "Enhanced Real Time Clock Support", below.
  1458. See also the <file:Documentation/smp.txt> and the SMP-HOWTO
  1459. available at <http://www.tldp.org/docs.html#howto>.
  1460. If you don't know what to do here, say N.
  1461. config SYS_SUPPORTS_SMP
  1462. bool
  1463. config NR_CPUS_DEFAULT_1
  1464. bool
  1465. config NR_CPUS_DEFAULT_2
  1466. bool
  1467. config NR_CPUS_DEFAULT_4
  1468. bool
  1469. config NR_CPUS_DEFAULT_8
  1470. bool
  1471. config NR_CPUS_DEFAULT_16
  1472. bool
  1473. config NR_CPUS_DEFAULT_32
  1474. bool
  1475. config NR_CPUS_DEFAULT_64
  1476. bool
  1477. config NR_CPUS
  1478. int "Maximum number of CPUs (2-64)"
  1479. range 1 64 if NR_CPUS_DEFAULT_1
  1480. depends on SMP
  1481. default "1" if NR_CPUS_DEFAULT_1
  1482. default "2" if NR_CPUS_DEFAULT_2
  1483. default "4" if NR_CPUS_DEFAULT_4
  1484. default "8" if NR_CPUS_DEFAULT_8
  1485. default "16" if NR_CPUS_DEFAULT_16
  1486. default "32" if NR_CPUS_DEFAULT_32
  1487. default "64" if NR_CPUS_DEFAULT_64
  1488. help
  1489. This allows you to specify the maximum number of CPUs which this
  1490. kernel will support. The maximum supported value is 32 for 32-bit
  1491. kernel and 64 for 64-bit kernels; the minimum value which makes
  1492. sense is 1 for Qemu (useful only for kernel debugging purposes)
  1493. and 2 for all others.
  1494. This is purely to save memory - each supported CPU adds
  1495. approximately eight kilobytes to the kernel image. For best
  1496. performance should round up your number of processors to the next
  1497. power of two.
  1498. #
  1499. # Timer Interrupt Frequency Configuration
  1500. #
  1501. choice
  1502. prompt "Timer frequency"
  1503. default HZ_250
  1504. help
  1505. Allows the configuration of the timer frequency.
  1506. config HZ_48
  1507. bool "48 HZ" if SYS_SUPPORTS_48HZ
  1508. config HZ_100
  1509. bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
  1510. config HZ_128
  1511. bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
  1512. config HZ_250
  1513. bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
  1514. config HZ_256
  1515. bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
  1516. config HZ_1000
  1517. bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
  1518. config HZ_1024
  1519. bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
  1520. endchoice
  1521. config SYS_SUPPORTS_48HZ
  1522. bool
  1523. config SYS_SUPPORTS_100HZ
  1524. bool
  1525. config SYS_SUPPORTS_128HZ
  1526. bool
  1527. config SYS_SUPPORTS_250HZ
  1528. bool
  1529. config SYS_SUPPORTS_256HZ
  1530. bool
  1531. config SYS_SUPPORTS_1000HZ
  1532. bool
  1533. config SYS_SUPPORTS_1024HZ
  1534. bool
  1535. config SYS_SUPPORTS_ARBIT_HZ
  1536. bool
  1537. default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
  1538. !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
  1539. !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
  1540. !SYS_SUPPORTS_1024HZ
  1541. config HZ
  1542. int
  1543. default 48 if HZ_48
  1544. default 100 if HZ_100
  1545. default 128 if HZ_128
  1546. default 250 if HZ_250
  1547. default 256 if HZ_256
  1548. default 1000 if HZ_1000
  1549. default 1024 if HZ_1024
  1550. source "kernel/Kconfig.preempt"
  1551. config MIPS_INSANE_LARGE
  1552. bool "Support for large 64-bit configurations"
  1553. depends on CPU_R10000 && 64BIT
  1554. help
  1555. MIPS R10000 does support a 44 bit / 16TB address space as opposed to
  1556. previous 64-bit processors which only supported 40 bit / 1TB. If you
  1557. need processes of more than 1TB virtual address space, say Y here.
  1558. This will result in additional memory usage, so it is not
  1559. recommended for normal users.
  1560. config KEXEC
  1561. bool "Kexec system call (EXPERIMENTAL)"
  1562. depends on EXPERIMENTAL
  1563. help
  1564. kexec is a system call that implements the ability to shutdown your
  1565. current kernel, and to start another kernel. It is like a reboot
  1566. but it is independent of the system firmware. And like a reboot
  1567. you can start any kernel with it, not just Linux.
  1568. The name comes from the similarity to the exec system call.
  1569. It is an ongoing process to be certain the hardware in a machine
  1570. is properly shutdown, so do not be surprised if this code does not
  1571. initially work for you. It may help to enable device hotplugging
  1572. support. As of this writing the exact hardware interface is
  1573. strongly in flux, so no good recommendation can be made.
  1574. config SECCOMP
  1575. bool "Enable seccomp to safely compute untrusted bytecode"
  1576. depends on PROC_FS
  1577. default y
  1578. help
  1579. This kernel feature is useful for number crunching applications
  1580. that may need to compute untrusted bytecode during their
  1581. execution. By using pipes or other transports made available to
  1582. the process as file descriptors supporting the read/write
  1583. syscalls, it's possible to isolate those applications in
  1584. their own address space using seccomp. Once seccomp is
  1585. enabled via /proc/<pid>/seccomp, it cannot be disabled
  1586. and the task is only allowed to execute a few safe syscalls
  1587. defined by each seccomp mode.
  1588. If unsure, say Y. Only embedded should say N here.
  1589. endmenu
  1590. config RWSEM_GENERIC_SPINLOCK
  1591. bool
  1592. default y
  1593. config LOCKDEP_SUPPORT
  1594. bool
  1595. default y
  1596. config STACKTRACE_SUPPORT
  1597. bool
  1598. default y
  1599. source "init/Kconfig"
  1600. menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
  1601. config HW_HAS_EISA
  1602. bool
  1603. config HW_HAS_PCI
  1604. bool
  1605. config PCI
  1606. bool "Support for PCI controller"
  1607. depends on HW_HAS_PCI
  1608. select PCI_DOMAINS
  1609. help
  1610. Find out whether you have a PCI motherboard. PCI is the name of a
  1611. bus system, i.e. the way the CPU talks to the other stuff inside
  1612. your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
  1613. say Y, otherwise N.
  1614. The PCI-HOWTO, available from
  1615. <http://www.tldp.org/docs.html#howto>, contains valuable
  1616. information about which PCI hardware does work under Linux and which
  1617. doesn't.
  1618. config PCI_DOMAINS
  1619. bool
  1620. source "drivers/pci/Kconfig"
  1621. #
  1622. # ISA support is now enabled via select. Too many systems still have the one
  1623. # or other ISA chip on the board that users don't know about so don't expect
  1624. # users to choose the right thing ...
  1625. #
  1626. config ISA
  1627. bool
  1628. config EISA
  1629. bool "EISA support"
  1630. depends on HW_HAS_EISA
  1631. select ISA
  1632. select GENERIC_ISA_DMA
  1633. ---help---
  1634. The Extended Industry Standard Architecture (EISA) bus was
  1635. developed as an open alternative to the IBM MicroChannel bus.
  1636. The EISA bus provided some of the features of the IBM MicroChannel
  1637. bus while maintaining backward compatibility with cards made for
  1638. the older ISA bus. The EISA bus saw limited use between 1988 and
  1639. 1995 when it was made obsolete by the PCI bus.
  1640. Say Y here if you are building a kernel for an EISA-based machine.
  1641. Otherwise, say N.
  1642. source "drivers/eisa/Kconfig"
  1643. config TC
  1644. bool "TURBOchannel support"
  1645. depends on MACH_DECSTATION
  1646. help
  1647. TurboChannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
  1648. processors. Documentation on writing device drivers for TurboChannel
  1649. is available at:
  1650. <http://www.cs.arizona.edu/computer.help/policy/DIGITAL_unix/AA-PS3HD-TET1_html/TITLE.html>.
  1651. #config ACCESSBUS
  1652. # bool "Access.Bus support"
  1653. # depends on TC
  1654. config MMU
  1655. bool
  1656. default y
  1657. config I8253
  1658. bool
  1659. config PCSPEAKER
  1660. bool
  1661. source "drivers/pcmcia/Kconfig"
  1662. source "drivers/pci/hotplug/Kconfig"
  1663. endmenu
  1664. menu "Executable file formats"
  1665. source "fs/Kconfig.binfmt"
  1666. config TRAD_SIGNALS
  1667. bool
  1668. config BINFMT_IRIX
  1669. bool "Include IRIX binary compatibility"
  1670. depends on CPU_BIG_ENDIAN && 32BIT && BROKEN
  1671. config MIPS32_COMPAT
  1672. bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
  1673. depends on 64BIT
  1674. help
  1675. Select this option if you want Linux/MIPS 32-bit binary
  1676. compatibility. Since all software available for Linux/MIPS is
  1677. currently 32-bit you should say Y here.
  1678. config COMPAT
  1679. bool
  1680. depends on MIPS32_COMPAT
  1681. default y
  1682. config SYSVIPC_COMPAT
  1683. bool
  1684. depends on COMPAT && SYSVIPC
  1685. default y
  1686. config MIPS32_O32
  1687. bool "Kernel support for o32 binaries"
  1688. depends on MIPS32_COMPAT
  1689. help
  1690. Select this option if you want to run o32 binaries. These are pure
  1691. 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
  1692. existing binaries are in this format.
  1693. If unsure, say Y.
  1694. config MIPS32_N32
  1695. bool "Kernel support for n32 binaries"
  1696. depends on MIPS32_COMPAT
  1697. help
  1698. Select this option if you want to run n32 binaries. These are
  1699. 64-bit binaries using 32-bit quantities for addressing and certain
  1700. data that would normally be 64-bit. They are used in special
  1701. cases.
  1702. If unsure, say N.
  1703. config BINFMT_ELF32
  1704. bool
  1705. default y if MIPS32_O32 || MIPS32_N32
  1706. endmenu
  1707. menu "Power management options"
  1708. source "kernel/power/Kconfig"
  1709. endmenu
  1710. source "net/Kconfig"
  1711. source "drivers/Kconfig"
  1712. source "fs/Kconfig"
  1713. source "kernel/Kconfig.instrumentation"
  1714. source "arch/mips/Kconfig.debug"
  1715. source "security/Kconfig"
  1716. source "crypto/Kconfig"
  1717. source "lib/Kconfig"