Kconfig 40 KB

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  1. config MIPS
  2. bool
  3. default y
  4. # Horrible source of confusion. Die, die, die ...
  5. select EMBEDDED
  6. # shouldn't it be per-subarchitecture?
  7. config ARCH_MAY_HAVE_PC_FDC
  8. bool
  9. default y
  10. mainmenu "Linux/MIPS Kernel Configuration"
  11. source "init/Kconfig"
  12. config SYS_SUPPORTS_32BIT_KERNEL
  13. bool
  14. config SYS_SUPPORTS_64BIT_KERNEL
  15. bool
  16. config CPU_SUPPORTS_32BIT_KERNEL
  17. bool
  18. config CPU_SUPPORTS_64BIT_KERNEL
  19. bool
  20. menu "Kernel type"
  21. choice
  22. prompt "Kernel code model"
  23. help
  24. You should only select this option if you have a workload that
  25. actually benefits from 64-bit processing or if your machine has
  26. large memory. You will only be presented a single option in this
  27. menu if your system does not support both 32-bit and 64-bit kernels.
  28. config 32BIT
  29. bool "32-bit kernel"
  30. depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
  31. select TRAD_SIGNALS
  32. help
  33. Select this option if you want to build a 32-bit kernel.
  34. config 64BIT
  35. bool "64-bit kernel"
  36. depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
  37. help
  38. Select this option if you want to build a 64-bit kernel.
  39. endchoice
  40. endmenu
  41. menu "Machine selection"
  42. config MACH_JAZZ
  43. bool "Support for the Jazz family of machines"
  44. select ARC
  45. select ARC32
  46. select GENERIC_ISA_DMA
  47. select I8259
  48. select ISA
  49. select SYS_SUPPORTS_32BIT_KERNEL
  50. select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
  51. help
  52. This a family of machines based on the MIPS R4030 chipset which was
  53. used by several vendors to build RISC/os and Windows NT workstations.
  54. Members include the Acer PICA, MIPS Magnum 4000, MIPS Millenium and
  55. Olivetti M700-10 workstations.
  56. config ACER_PICA_61
  57. bool "Support for Acer PICA 1 chipset (EXPERIMENTAL)"
  58. depends on MACH_JAZZ && EXPERIMENTAL
  59. select DMA_NONCOHERENT
  60. help
  61. This is a machine with a R4400 133/150 MHz CPU. To compile a Linux
  62. kernel that runs on these, say Y here. For details about Linux on
  63. the MIPS architecture, check out the Linux/MIPS FAQ on the WWW at
  64. <http://www.linux-mips.org/>.
  65. config MIPS_MAGNUM_4000
  66. bool "Support for MIPS Magnum 4000"
  67. depends on MACH_JAZZ
  68. select DMA_NONCOHERENT
  69. help
  70. This is a machine with a R4000 100 MHz CPU. To compile a Linux
  71. kernel that runs on these, say Y here. For details about Linux on
  72. the MIPS architecture, check out the Linux/MIPS FAQ on the WWW at
  73. <http://www.linux-mips.org/>.
  74. config OLIVETTI_M700
  75. bool "Support for Olivetti M700-10"
  76. depends on MACH_JAZZ
  77. select DMA_NONCOHERENT
  78. help
  79. This is a machine with a R4000 100 MHz CPU. To compile a Linux
  80. kernel that runs on these, say Y here. For details about Linux on
  81. the MIPS architecture, check out the Linux/MIPS FAQ on the WWW at
  82. <http://www.linux-mips.org/>.
  83. config MACH_VR41XX
  84. bool "Support for NEC VR4100 series based machines"
  85. select SYS_SUPPORTS_32BIT_KERNEL
  86. select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
  87. config NEC_CMBVR4133
  88. bool "Support for NEC CMB-VR4133"
  89. depends on MACH_VR41XX
  90. select CPU_VR41XX
  91. select DMA_NONCOHERENT
  92. select IRQ_CPU
  93. select HW_HAS_PCI
  94. config ROCKHOPPER
  95. bool "Support for Rockhopper baseboard"
  96. depends on NEC_CMBVR4133
  97. select I8259
  98. select HAVE_STD_PC_SERIAL_PORT
  99. config CASIO_E55
  100. bool "Support for CASIO CASSIOPEIA E-10/15/55/65"
  101. depends on MACH_VR41XX
  102. select CPU_LITTLE_ENDIAN
  103. select DMA_NONCOHERENT
  104. select IRQ_CPU
  105. select ISA
  106. config IBM_WORKPAD
  107. bool "Support for IBM WorkPad z50"
  108. depends on MACH_VR41XX
  109. select CPU_LITTLE_ENDIAN
  110. select DMA_NONCOHERENT
  111. select IRQ_CPU
  112. select ISA
  113. config TANBAC_TB022X
  114. bool "Support for TANBAC VR4131 multichip module and TANBAC VR4131DIMM"
  115. depends on MACH_VR41XX
  116. select CPU_LITTLE_ENDIAN
  117. select DMA_NONCOHERENT
  118. select IRQ_CPU
  119. select HW_HAS_PCI
  120. help
  121. The TANBAC VR4131 multichip module(TB0225) and
  122. the TANBAC VR4131DIMM(TB0229) are MIPS-based platforms
  123. manufactured by TANBAC.
  124. Please refer to <http://www.tanbac.co.jp/>
  125. about VR4131 multichip module and VR4131DIMM.
  126. config TANBAC_TB0226
  127. bool "Support for TANBAC Mbase(TB0226)"
  128. depends on TANBAC_TB022X
  129. select GPIO_VR41XX
  130. help
  131. The TANBAC Mbase(TB0226) is a MIPS-based platform manufactured by TANBAC.
  132. Please refer to <http://www.tanbac.co.jp/> about Mbase.
  133. config TANBAC_TB0287
  134. bool "Support for TANBAC Mini-ITX DIMM base(TB0287)"
  135. depends on TANBAC_TB022X
  136. help
  137. The TANBAC Mini-ITX DIMM base(TB0287) is a MIPS-based platform manufactured by TANBAC.
  138. Please refer to <http://www.tanbac.co.jp/> about Mini-ITX DIMM base.
  139. config VICTOR_MPC30X
  140. bool "Support for Victor MP-C303/304"
  141. depends on MACH_VR41XX
  142. select CPU_LITTLE_ENDIAN
  143. select DMA_NONCOHERENT
  144. select IRQ_CPU
  145. select HW_HAS_PCI
  146. config ZAO_CAPCELLA
  147. bool "Support for ZAO Networks Capcella"
  148. depends on MACH_VR41XX
  149. select CPU_LITTLE_ENDIAN
  150. select DMA_NONCOHERENT
  151. select IRQ_CPU
  152. select HW_HAS_PCI
  153. config PCI_VR41XX
  154. bool "Add PCI control unit support of NEC VR4100 series"
  155. depends on MACH_VR41XX && HW_HAS_PCI
  156. default y
  157. select PCI
  158. config VRC4173
  159. tristate "Add NEC VRC4173 companion chip support"
  160. depends on MACH_VR41XX && PCI_VR41XX
  161. ---help---
  162. The NEC VRC4173 is a companion chip for NEC VR4122/VR4131.
  163. config TOSHIBA_JMR3927
  164. bool "Support for Toshiba JMR-TX3927 board"
  165. select DMA_NONCOHERENT
  166. select HW_HAS_PCI
  167. select SWAP_IO_SPACE
  168. select SYS_SUPPORTS_32BIT_KERNEL
  169. config MIPS_COBALT
  170. bool "Support for Cobalt Server"
  171. depends on EXPERIMENTAL
  172. select DMA_NONCOHERENT
  173. select HW_HAS_PCI
  174. select I8259
  175. select IRQ_CPU
  176. select SYS_SUPPORTS_32BIT_KERNEL
  177. select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
  178. config MACH_DECSTATION
  179. bool "Support for DECstations"
  180. select BOOT_ELF32
  181. select DMA_NONCOHERENT
  182. select EARLY_PRINTK
  183. select IRQ_CPU
  184. select SYS_SUPPORTS_32BIT_KERNEL
  185. select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
  186. ---help---
  187. This enables support for DEC's MIPS based workstations. For details
  188. see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
  189. DECstation porting pages on <http://decstation.unix-ag.org/>.
  190. If you have one of the following DECstation Models you definitely
  191. want to choose R4xx0 for the CPU Type:
  192. DECstation 5000/50
  193. DECstation 5000/150
  194. DECstation 5000/260
  195. DECsystem 5900/260
  196. otherwise choose R3000.
  197. config MIPS_EV64120
  198. bool "Support for Galileo EV64120 Evaluation board (EXPERIMENTAL)"
  199. depends on EXPERIMENTAL
  200. select DMA_NONCOHERENT
  201. select HW_HAS_PCI
  202. select MIPS_GT64120
  203. select SYS_SUPPORTS_32BIT_KERNEL
  204. select SYS_SUPPORTS_64BIT_KERNEL
  205. help
  206. This is an evaluation board based on the Galileo GT-64120
  207. single-chip system controller that contains a MIPS R5000 compatible
  208. core running at 75/100MHz. Their website is located at
  209. <http://www.marvell.com/>. Say Y here if you wish to build a
  210. kernel for this platform.
  211. config EVB_PCI1
  212. bool "Enable Second PCI (PCI1)"
  213. depends on MIPS_EV64120
  214. config MIPS_EV96100
  215. bool "Support for Galileo EV96100 Evaluation board (EXPERIMENTAL)"
  216. depends on EXPERIMENTAL
  217. select DMA_NONCOHERENT
  218. select HW_HAS_PCI
  219. select IRQ_CPU
  220. select MIPS_GT96100
  221. select RM7000_CPU_SCACHE
  222. select SWAP_IO_SPACE
  223. select SYS_SUPPORTS_32BIT_KERNEL
  224. select SYS_SUPPORTS_64BIT_KERNEL
  225. help
  226. This is an evaluation board based on the Galileo GT-96100 LAN/WAN
  227. communications controllers containing a MIPS R5000 compatible core
  228. running at 83MHz. Their website is <http://www.marvell.com/>. Say Y
  229. here if you wish to build a kernel for this platform.
  230. config MIPS_IVR
  231. bool "Support for Globespan IVR board"
  232. select DMA_NONCOHERENT
  233. select HW_HAS_PCI
  234. select SYS_SUPPORTS_32BIT_KERNEL
  235. select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
  236. help
  237. This is an evaluation board built by Globespan to showcase thir
  238. iVR (Internet Video Recorder) design. It utilizes a QED RM5231
  239. R5000 MIPS core. More information can be found out their website
  240. located at <http://www.globespan.net/>. Say Y here if you wish to
  241. build a kernel for this platform.
  242. config LASAT
  243. bool "Support for LASAT Networks platforms"
  244. select DMA_NONCOHERENT
  245. select HW_HAS_PCI
  246. select MIPS_GT64120
  247. select R5000_CPU_SCACHE
  248. select SYS_SUPPORTS_32BIT_KERNEL
  249. select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
  250. config PICVUE
  251. tristate "PICVUE LCD display driver"
  252. depends on LASAT
  253. config PICVUE_PROC
  254. tristate "PICVUE LCD display driver /proc interface"
  255. depends on PICVUE
  256. config DS1603
  257. bool "DS1603 RTC driver"
  258. depends on LASAT
  259. config LASAT_SYSCTL
  260. bool "LASAT sysctl interface"
  261. depends on LASAT
  262. config MIPS_ITE8172
  263. bool "Support for ITE 8172G board"
  264. select DMA_NONCOHERENT
  265. select HW_HAS_PCI
  266. select SYS_SUPPORTS_32BIT_KERNEL
  267. select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
  268. help
  269. Ths is an evaluation board made by ITE <http://www.ite.com.tw/>
  270. with ATX form factor that utilizes a MIPS R5000 to work with its
  271. ITE8172G companion internet appliance chip. The MIPS core can be
  272. either a NEC Vr5432 or QED RM5231. Say Y here if you wish to build
  273. a kernel for this platform.
  274. config IT8172_REVC
  275. bool "Support for older IT8172 (Rev C)"
  276. depends on MIPS_ITE8172
  277. help
  278. Say Y here to support the older, Revision C version of the Integrated
  279. Technology Express, Inc. ITE8172 SBC. Vendor page at
  280. <http://www.ite.com.tw/ia/brief_it8172bsp.htm>; picture of the
  281. board at <http://www.mvista.com/partners/semiconductor/ite.html>.
  282. config MIPS_ATLAS
  283. bool "Support for MIPS Atlas board"
  284. select BOOT_ELF32
  285. select DMA_NONCOHERENT
  286. select HW_HAS_PCI
  287. select MIPS_GT64120
  288. select SWAP_IO_SPACE
  289. select SYS_SUPPORTS_32BIT_KERNEL
  290. select SYS_SUPPORTS_64BIT_KERNEL
  291. help
  292. This enables support for the MIPS Technologies Atlas evaluation
  293. board.
  294. config MIPS_MALTA
  295. bool "Support for MIPS Malta board"
  296. select BOOT_ELF32
  297. select HAVE_STD_PC_SERIAL_PORT
  298. select DMA_NONCOHERENT
  299. select GENERIC_ISA_DMA
  300. select HW_HAS_PCI
  301. select I8259
  302. select MIPS_GT64120
  303. select SWAP_IO_SPACE
  304. select SYS_SUPPORTS_32BIT_KERNEL
  305. select SYS_SUPPORTS_64BIT_KERNEL
  306. help
  307. This enables support for the MIPS Technologies Malta evaluation
  308. board.
  309. config MIPS_SEAD
  310. bool "Support for MIPS SEAD board (EXPERIMENTAL)"
  311. depends on EXPERIMENTAL
  312. select IRQ_CPU
  313. select DMA_NONCOHERENT
  314. select SYS_SUPPORTS_32BIT_KERNEL
  315. select SYS_SUPPORTS_64BIT_KERNEL
  316. help
  317. This enables support for the MIPS Technologies SEAD evaluation
  318. board.
  319. config MOMENCO_OCELOT
  320. bool "Support for Momentum Ocelot board"
  321. select DMA_NONCOHERENT
  322. select HW_HAS_PCI
  323. select IRQ_CPU
  324. select IRQ_CPU_RM7K
  325. select MIPS_GT64120
  326. select RM7000_CPU_SCACHE
  327. select SWAP_IO_SPACE
  328. select SYS_SUPPORTS_32BIT_KERNEL
  329. select SYS_SUPPORTS_64BIT_KERNEL
  330. help
  331. The Ocelot is a MIPS-based Single Board Computer (SBC) made by
  332. Momentum Computer <http://www.momenco.com/>.
  333. config MOMENCO_OCELOT_G
  334. bool "Support for Momentum Ocelot-G board"
  335. select DMA_NONCOHERENT
  336. select HW_HAS_PCI
  337. select IRQ_CPU
  338. select IRQ_CPU_RM7K
  339. select PCI_MARVELL
  340. select RM7000_CPU_SCACHE
  341. select SWAP_IO_SPACE
  342. select SYS_SUPPORTS_32BIT_KERNEL
  343. select SYS_SUPPORTS_64BIT_KERNEL
  344. help
  345. The Ocelot is a MIPS-based Single Board Computer (SBC) made by
  346. Momentum Computer <http://www.momenco.com/>.
  347. config MOMENCO_OCELOT_C
  348. bool "Support for Momentum Ocelot-C board"
  349. select DMA_NONCOHERENT
  350. select HW_HAS_PCI
  351. select IRQ_CPU
  352. select IRQ_MV64340
  353. select PCI_MARVELL
  354. select RM7000_CPU_SCACHE
  355. select SWAP_IO_SPACE
  356. select SYS_SUPPORTS_32BIT_KERNEL
  357. select SYS_SUPPORTS_64BIT_KERNEL
  358. help
  359. The Ocelot is a MIPS-based Single Board Computer (SBC) made by
  360. Momentum Computer <http://www.momenco.com/>.
  361. config MOMENCO_OCELOT_3
  362. bool "Support for Momentum Ocelot-3 board"
  363. select BOOT_ELF32
  364. select DMA_NONCOHERENT
  365. select HW_HAS_PCI
  366. select IRQ_CPU
  367. select IRQ_CPU_RM7K
  368. select IRQ_MV64340
  369. select PCI_MARVELL
  370. select RM7000_CPU_SCACHE
  371. select SWAP_IO_SPACE
  372. select SYS_SUPPORTS_32BIT_KERNEL
  373. select SYS_SUPPORTS_64BIT_KERNEL
  374. help
  375. The Ocelot-3 is based off Discovery III System Controller and
  376. PMC-Sierra Rm79000 core.
  377. config MOMENCO_JAGUAR_ATX
  378. bool "Support for Momentum Jaguar board"
  379. select BOOT_ELF32
  380. select DMA_NONCOHERENT
  381. select HW_HAS_PCI
  382. select IRQ_CPU
  383. select IRQ_CPU_RM7K
  384. select IRQ_MV64340
  385. select LIMITED_DMA
  386. select PCI_MARVELL
  387. select RM7000_CPU_SCACHE
  388. select SWAP_IO_SPACE
  389. select SYS_SUPPORTS_32BIT_KERNEL
  390. select SYS_SUPPORTS_64BIT_KERNEL
  391. help
  392. The Jaguar ATX is a MIPS-based Single Board Computer (SBC) made by
  393. Momentum Computer <http://www.momenco.com/>.
  394. config JAGUAR_DMALOW
  395. bool "Low DMA Mode"
  396. depends on MOMENCO_JAGUAR_ATX
  397. help
  398. Select to Y if jump JP5 is set on your board, N otherwise. Normally
  399. the jumper is set, so if you feel unsafe, just say Y.
  400. config PMC_YOSEMITE
  401. bool "Support for PMC-Sierra Yosemite eval board"
  402. select DMA_COHERENT
  403. select HW_HAS_PCI
  404. select IRQ_CPU
  405. select IRQ_CPU_RM7K
  406. select IRQ_CPU_RM9K
  407. select SWAP_IO_SPACE
  408. select SYS_SUPPORTS_32BIT_KERNEL
  409. select SYS_SUPPORTS_64BIT_KERNEL
  410. help
  411. Yosemite is an evaluation board for the RM9000x2 processor
  412. manufactured by PMC-Sierra
  413. config HYPERTRANSPORT
  414. bool "Hypertransport Support for PMC-Sierra Yosemite"
  415. depends on PMC_YOSEMITE
  416. config DDB5074
  417. bool "Support for NEC DDB Vrc-5074 (EXPERIMENTAL)"
  418. depends on EXPERIMENTAL
  419. select DMA_NONCOHERENT
  420. select HAVE_STD_PC_SERIAL_PORT
  421. select HW_HAS_PCI
  422. select IRQ_CPU
  423. select I8259
  424. select ISA
  425. select SYS_SUPPORTS_32BIT_KERNEL
  426. select SYS_SUPPORTS_64BIT_KERNEL
  427. help
  428. This enables support for the VR5000-based NEC DDB Vrc-5074
  429. evaluation board.
  430. config DDB5476
  431. bool "Support for NEC DDB Vrc-5476"
  432. select DMA_NONCOHERENT
  433. select HAVE_STD_PC_SERIAL_PORT
  434. select HW_HAS_PCI
  435. select IRQ_CPU
  436. select I8259
  437. select ISA
  438. select SYS_SUPPORTS_32BIT_KERNEL
  439. select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
  440. help
  441. This enables support for the R5432-based NEC DDB Vrc-5476
  442. evaluation board.
  443. Features : kernel debugging, serial terminal, NFS root fs, on-board
  444. ether port USB, AC97, PCI, PCI VGA card & framebuffer console,
  445. IDE controller, PS2 keyboard, PS2 mouse, etc.
  446. config DDB5477
  447. bool "Support for NEC DDB Vrc-5477"
  448. select DMA_NONCOHERENT
  449. select HW_HAS_PCI
  450. select I8259
  451. select IRQ_CPU
  452. select SYS_SUPPORTS_32BIT_KERNEL
  453. select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
  454. help
  455. This enables support for the R5432-based NEC DDB Vrc-5477,
  456. or Rockhopper/SolutionGear boards with R5432/R5500 CPUs.
  457. Features : kernel debugging, serial terminal, NFS root fs, on-board
  458. ether port USB, AC97, PCI, etc.
  459. config DDB5477_BUS_FREQUENCY
  460. int "bus frequency (in kHZ, 0 for auto-detect)"
  461. depends on DDB5477
  462. default 0
  463. config QEMU
  464. bool "Support for Qemu"
  465. select DMA_COHERENT
  466. select GENERIC_ISA_DMA
  467. select HAVE_STD_PC_SERIAL_PORT
  468. select I8259
  469. select ISA
  470. select SWAP_IO_SPACE
  471. select SYS_SUPPORTS_32BIT_KERNEL
  472. select SYS_SUPPORTS_BIG_ENDIAN
  473. help
  474. Qemu is a software emulator which among other architectures also
  475. can simulate a MIPS32 4Kc system. This patch adds support for the
  476. system architecture that currently is being simulated by Qemu. It
  477. will eventually be removed again when Qemu has the capability to
  478. simulate actual MIPS hardware platforms. More information on Qemu
  479. can be found at http://www.linux-mips.org/wiki/Qemu.
  480. config SGI_IP22
  481. bool "Support for SGI IP22 (Indy/Indigo2)"
  482. select ARC
  483. select ARC32
  484. select BOOT_ELF32
  485. select DMA_NONCOHERENT
  486. select IP22_CPU_SCACHE
  487. select IRQ_CPU
  488. select SWAP_IO_SPACE
  489. select SYS_SUPPORTS_32BIT_KERNEL
  490. select SYS_SUPPORTS_64BIT_KERNEL
  491. help
  492. This are the SGI Indy, Challenge S and Indigo2, as well as certain
  493. OEM variants like the Tandem CMN B006S. To compile a Linux kernel
  494. that runs on these, say Y here.
  495. config SGI_IP27
  496. bool "Support for SGI IP27 (Origin200/2000)"
  497. select ARC
  498. select ARC64
  499. select DMA_IP27
  500. select HW_HAS_PCI
  501. select PCI_DOMAINS
  502. select SYS_SUPPORTS_64BIT_KERNEL
  503. help
  504. This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
  505. workstations. To compile a Linux kernel that runs on these, say Y
  506. here.
  507. #config SGI_SN0_XXL
  508. # bool "IP27 XXL"
  509. # depends on SGI_IP27
  510. # This options adds support for userspace processes upto 16TB size.
  511. # Normally the limit is just .5TB.
  512. config SGI_SN0_N_MODE
  513. bool "IP27 N-Mode"
  514. depends on SGI_IP27
  515. help
  516. The nodes of Origin 200, Origin 2000 and Onyx 2 systems can be
  517. configured in either N-Modes which allows for more nodes or M-Mode
  518. which allows for more memory. Your system is most probably
  519. running in M-Mode, so you should say N here.
  520. config ARCH_DISCONTIGMEM_ENABLE
  521. bool
  522. default y if SGI_IP27
  523. help
  524. Say Y to upport efficient handling of discontiguous physical memory,
  525. for architectures which are either NUMA (Non-Uniform Memory Access)
  526. or have huge holes in the physical address space for other reasons.
  527. See <file:Documentation/vm/numa> for more.
  528. config NUMA
  529. bool "NUMA Support"
  530. depends on SGI_IP27
  531. help
  532. Say Y to compile the kernel to support NUMA (Non-Uniform Memory
  533. Access). This option is for configuring high-end multiprocessor
  534. server machines. If in doubt, say N.
  535. config MAPPED_KERNEL
  536. bool "Mapped kernel support"
  537. depends on SGI_IP27
  538. help
  539. Change the way a Linux kernel is loaded into memory on a MIPS64
  540. machine. This is required in order to support text replication and
  541. NUMA. If you need to understand it, read the source code.
  542. config REPLICATE_KTEXT
  543. bool "Kernel text replication support"
  544. depends on SGI_IP27
  545. help
  546. Say Y here to enable replicating the kernel text across multiple
  547. nodes in a NUMA cluster. This trades memory for speed.
  548. config REPLICATE_EXHANDLERS
  549. bool "Exception handler replication support"
  550. depends on SGI_IP27
  551. help
  552. Say Y here to enable replicating the kernel exception handlers
  553. across multiple nodes in a NUMA cluster. This trades memory for
  554. speed.
  555. config SGI_IP32
  556. bool "Support for SGI IP32 (O2) (EXPERIMENTAL)"
  557. depends on EXPERIMENTAL
  558. select ARC
  559. select ARC32
  560. select BOOT_ELF32
  561. select OWN_DMA
  562. select DMA_IP32
  563. select DMA_NONCOHERENT
  564. select HW_HAS_PCI
  565. select R5000_CPU_SCACHE
  566. select RM7000_CPU_SCACHE
  567. select SYS_SUPPORTS_64BIT_KERNEL
  568. help
  569. If you want this kernel to run on SGI O2 workstation, say Y here.
  570. config SOC_AU1X00
  571. bool "Support for AMD/Alchemy Au1X00 SOCs"
  572. select SYS_SUPPORTS_32BIT_KERNEL
  573. choice
  574. prompt "Au1X00 SOC Type"
  575. depends on SOC_AU1X00
  576. help
  577. Say Y here to enable support for one of three AMD/Alchemy
  578. SOCs. For additional documentation see www.amd.com.
  579. config SOC_AU1000
  580. bool "SOC_AU1000"
  581. config SOC_AU1100
  582. bool "SOC_AU1100"
  583. config SOC_AU1500
  584. bool "SOC_AU1500"
  585. config SOC_AU1550
  586. bool "SOC_AU1550"
  587. endchoice
  588. choice
  589. prompt "AMD/Alchemy Au1x00 board support"
  590. depends on SOC_AU1X00
  591. help
  592. These are evaluation boards built by AMD/Alchemy to
  593. showcase their Au1X00 Internet Edge Processors. The SOC design
  594. is based on the MIPS32 architecture running at 266/400/500MHz
  595. with many integrated peripherals. Further information can be
  596. found at their website, <http://www.amd.com/>. Say Y here if you
  597. wish to build a kernel for this platform.
  598. config MIPS_PB1000
  599. bool "PB1000 board"
  600. depends on SOC_AU1000
  601. select DMA_NONCOHERENT
  602. select HW_HAS_PCI
  603. select SWAP_IO_SPACE
  604. config MIPS_PB1100
  605. bool "PB1100 board"
  606. depends on SOC_AU1100
  607. select DMA_NONCOHERENT
  608. select HW_HAS_PCI
  609. select SWAP_IO_SPACE
  610. config MIPS_PB1500
  611. bool "PB1500 board"
  612. depends on SOC_AU1500
  613. select DMA_COHERENT
  614. select HW_HAS_PCI
  615. config MIPS_PB1550
  616. bool "PB1550 board"
  617. depends on SOC_AU1550
  618. select DMA_COHERENT
  619. select HW_HAS_PCI
  620. select MIPS_DISABLE_OBSOLETE_IDE
  621. config MIPS_DB1000
  622. bool "DB1000 board"
  623. depends on SOC_AU1000
  624. select DMA_NONCOHERENT
  625. select HW_HAS_PCI
  626. config MIPS_DB1100
  627. bool "DB1100 board"
  628. depends on SOC_AU1100
  629. select DMA_NONCOHERENT
  630. config MIPS_DB1500
  631. bool "DB1500 board"
  632. depends on SOC_AU1500
  633. select DMA_COHERENT
  634. select HW_HAS_PCI
  635. select MIPS_DISABLE_OBSOLETE_IDE
  636. config MIPS_DB1550
  637. bool "DB1550 board"
  638. depends on SOC_AU1550
  639. select HW_HAS_PCI
  640. select DMA_COHERENT
  641. select MIPS_DISABLE_OBSOLETE_IDE
  642. config MIPS_BOSPORUS
  643. bool "Bosporus board"
  644. depends on SOC_AU1500
  645. select DMA_NONCOHERENT
  646. config MIPS_MIRAGE
  647. bool "Mirage board"
  648. depends on SOC_AU1500
  649. select DMA_NONCOHERENT
  650. config MIPS_XXS1500
  651. bool "MyCable XXS1500 board"
  652. depends on SOC_AU1500
  653. select DMA_NONCOHERENT
  654. config MIPS_MTX1
  655. bool "4G Systems MTX-1 board"
  656. depends on SOC_AU1500
  657. select HW_HAS_PCI
  658. select DMA_NONCOHERENT
  659. endchoice
  660. config SNI_RM200_PCI
  661. bool "Support for SNI RM200 PCI"
  662. select ARC
  663. select ARC32
  664. select BOOT_ELF32
  665. select DMA_NONCOHERENT
  666. select GENERIC_ISA_DMA
  667. select HAVE_STD_PC_SERIAL_PORT
  668. select HW_HAS_PCI
  669. select I8259
  670. select ISA
  671. select SYS_SUPPORTS_32BIT_KERNEL
  672. select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
  673. help
  674. The SNI RM200 PCI was a MIPS-based platform manufactured by Siemens
  675. Nixdorf Informationssysteme (SNI), parent company of Pyramid
  676. Technology and now in turn merged with Fujitsu. Say Y here to
  677. support this machine type.
  678. config TOSHIBA_RBTX4927
  679. bool "Support for Toshiba TBTX49[23]7 board"
  680. select DMA_NONCOHERENT
  681. select HAS_TXX9_SERIAL
  682. select HW_HAS_PCI
  683. select I8259
  684. select ISA
  685. select SWAP_IO_SPACE
  686. select SYS_SUPPORTS_32BIT_KERNEL
  687. select SYS_SUPPORTS_64BIT_KERNEL
  688. help
  689. This Toshiba board is based on the TX4927 processor. Say Y here to
  690. support this machine type
  691. config TOSHIBA_FPCIB0
  692. bool "FPCIB0 Backplane Support"
  693. depends on TOSHIBA_RBTX4927
  694. source "arch/mips/sibyte/Kconfig"
  695. config RWSEM_GENERIC_SPINLOCK
  696. bool
  697. default y
  698. config RWSEM_XCHGADD_ALGORITHM
  699. bool
  700. config GENERIC_CALIBRATE_DELAY
  701. bool
  702. default y
  703. #
  704. # Select some configuration options automatically based on user selections.
  705. #
  706. config ARC
  707. bool
  708. depends on SNI_RM200_PCI || SGI_IP32 || SGI_IP27 || SGI_IP22 || MIPS_MAGNUM_4000 || OLIVETTI_M700 || ACER_PICA_61
  709. default y
  710. config DMA_COHERENT
  711. bool
  712. config DMA_IP27
  713. bool
  714. config DMA_IP32
  715. bool
  716. select DMA_NEED_PCI_MAP_STATE
  717. config DMA_NONCOHERENT
  718. bool
  719. select DMA_NEED_PCI_MAP_STATE
  720. config DMA_NEED_PCI_MAP_STATE
  721. bool
  722. config EARLY_PRINTK
  723. bool
  724. depends on MACH_DECSTATION
  725. default y
  726. config GENERIC_ISA_DMA
  727. bool
  728. depends on SNI_RM200_PCI || MIPS_MAGNUM_4000 || OLIVETTI_M700 || ACER_PICA_61 || MIPS_MALTA
  729. default y
  730. config I8259
  731. bool
  732. depends on SNI_RM200_PCI || DDB5477 || DDB5476 || DDB5074 || MACH_JAZZ || MIPS_MALTA || MIPS_COBALT
  733. default y
  734. config LIMITED_DMA
  735. bool
  736. select HIGHMEM
  737. config MIPS_BONITO64
  738. bool
  739. depends on MIPS_ATLAS || MIPS_MALTA
  740. default y
  741. config MIPS_MSC
  742. bool
  743. depends on MIPS_ATLAS || MIPS_MALTA
  744. default y
  745. config MIPS_NILE4
  746. bool
  747. depends on LASAT
  748. default y
  749. config MIPS_DISABLE_OBSOLETE_IDE
  750. bool
  751. config CPU_LITTLE_ENDIAN
  752. bool "Generate little endian code"
  753. default y if ACER_PICA_61 || CASIO_E55 || DDB5074 || DDB5476 || DDB5477 || MACH_DECSTATION || IBM_WORKPAD || LASAT || MIPS_COBALT || MIPS_ITE8172 || MIPS_IVR || SOC_AU1X00 || OLIVETTI_M700 || SNI_RM200_PCI || VICTOR_MPC30X || ZAO_CAPCELLA
  754. default n if MIPS_EV64120 || MIPS_EV96100 || MOMENCO_OCELOT || MOMENCO_OCELOT_G || SGI_IP22 || SGI_IP27 || SGI_IP32 || TOSHIBA_JMR3927
  755. help
  756. Some MIPS machines can be configured for either little or big endian
  757. byte order. These modes require different kernels. Say Y if your
  758. machine is little endian, N if it's a big endian machine.
  759. config IRQ_CPU
  760. bool
  761. config IRQ_CPU_RM7K
  762. bool
  763. config IRQ_MV64340
  764. bool
  765. config DDB5XXX_COMMON
  766. bool
  767. depends on DDB5074 || DDB5476 || DDB5477
  768. default y
  769. config MIPS_BOARDS_GEN
  770. bool
  771. depends on MIPS_ATLAS || MIPS_MALTA || MIPS_SEAD
  772. default y
  773. config MIPS_GT64111
  774. bool
  775. depends on MIPS_COBALT
  776. default y
  777. config MIPS_GT64120
  778. bool
  779. depends on MIPS_EV64120 || MIPS_EV96100 || LASAT || MIPS_ATLAS || MIPS_MALTA || MOMENCO_OCELOT
  780. default y
  781. config MIPS_TX3927
  782. bool
  783. depends on TOSHIBA_JMR3927
  784. select HAS_TXX9_SERIAL
  785. default y
  786. config PCI_MARVELL
  787. bool
  788. config ITE_BOARD_GEN
  789. bool
  790. depends on MIPS_IVR || MIPS_ITE8172
  791. default y
  792. config SWAP_IO_SPACE
  793. bool
  794. #
  795. # Unfortunately not all GT64120 systems run the chip at the same clock.
  796. # As the user for the clock rate and try to minimize the available options.
  797. #
  798. choice
  799. prompt "Galileo Chip Clock"
  800. #default SYSCLK_83 if MIPS_EV64120
  801. depends on MIPS_EV64120 || MOMENCO_OCELOT || MOMENCO_OCELOT_G
  802. default SYSCLK_83 if MIPS_EV64120
  803. default SYSCLK_100 if MOMENCO_OCELOT || MOMENCO_OCELOT_G
  804. config SYSCLK_75
  805. bool "75" if MIPS_EV64120
  806. config SYSCLK_83
  807. bool "83.3" if MIPS_EV64120
  808. config SYSCLK_100
  809. bool "100" if MIPS_EV64120 || MOMENCO_OCELOT || MOMENCO_OCELOT_G
  810. endchoice
  811. config AU1X00_USB_DEVICE
  812. bool
  813. depends on MIPS_PB1500 || MIPS_PB1100 || MIPS_PB1000
  814. default n
  815. config MIPS_GT96100
  816. bool
  817. depends on MIPS_EV96100
  818. default y
  819. help
  820. Say Y here to support the Galileo Technology GT96100 communications
  821. controller card. There is a web page at <http://www.galileot.com/>.
  822. config IT8172_CIR
  823. bool
  824. depends on MIPS_ITE8172 || MIPS_IVR
  825. default y
  826. config IT8712
  827. bool
  828. depends on MIPS_ITE8172
  829. default y
  830. config BOOT_ELF32
  831. bool
  832. depends on MACH_DECSTATION || MIPS_ATLAS || MIPS_MALTA || MOMENCO_JAGUAR_ATX || MOMENCO_OCELOT_3 || SIBYTE_SB1xxx_SOC || SGI_IP32 || SGI_IP22 || SNI_RM200_PCI
  833. default y
  834. config MIPS_L1_CACHE_SHIFT
  835. int
  836. default "4" if MACH_DECSTATION
  837. default "7" if SGI_IP27
  838. default "5"
  839. config ARC32
  840. bool
  841. depends on MACH_JAZZ || SNI_RM200_PCI || SGI_IP22 || SGI_IP32
  842. default y
  843. config HAVE_STD_PC_SERIAL_PORT
  844. bool
  845. config ARC_CONSOLE
  846. bool "ARC console support"
  847. depends on SGI_IP22 || SNI_RM200_PCI
  848. config ARC_MEMORY
  849. bool
  850. depends on MACH_JAZZ || SNI_RM200_PCI || SGI_IP32
  851. default y
  852. config ARC_PROMLIB
  853. bool
  854. depends on MACH_JAZZ || SNI_RM200_PCI || SGI_IP22 || SGI_IP32
  855. default y
  856. config ARC64
  857. bool
  858. depends on SGI_IP27
  859. default y
  860. config BOOT_ELF64
  861. bool
  862. depends on SGI_IP27
  863. default y
  864. #config MAPPED_PCI_IO y
  865. # bool
  866. # depends on SGI_IP27
  867. # default y
  868. config QL_ISP_A64
  869. bool
  870. depends on SGI_IP27
  871. default y
  872. config TOSHIBA_BOARDS
  873. bool
  874. depends on TOSHIBA_JMR3927 || TOSHIBA_RBTX4927
  875. default y
  876. endmenu
  877. menu "CPU selection"
  878. choice
  879. prompt "CPU type"
  880. default CPU_R4X00
  881. config CPU_MIPS32
  882. bool "MIPS32"
  883. select CPU_SUPPORTS_32BIT_KERNEL
  884. config CPU_MIPS64
  885. bool "MIPS64"
  886. select CPU_SUPPORTS_32BIT_KERNEL
  887. select CPU_SUPPORTS_64BIT_KERNEL
  888. config CPU_R3000
  889. bool "R3000"
  890. select CPU_SUPPORTS_32BIT_KERNEL
  891. help
  892. Please make sure to pick the right CPU type. Linux/MIPS is not
  893. designed to be generic, i.e. Kernels compiled for R3000 CPUs will
  894. *not* work on R4000 machines and vice versa. However, since most
  895. of the supported machines have an R4000 (or similar) CPU, R4x00
  896. might be a safe bet. If the resulting kernel does not work,
  897. try to recompile with R3000.
  898. config CPU_TX39XX
  899. bool "R39XX"
  900. select CPU_SUPPORTS_32BIT_KERNEL
  901. config CPU_VR41XX
  902. bool "R41xx"
  903. select CPU_SUPPORTS_32BIT_KERNEL
  904. select CPU_SUPPORTS_64BIT_KERNEL
  905. help
  906. The options selects support for the NEC VR41xx series of processors.
  907. Only choose this option if you have one of these processors as a
  908. kernel built with this option will not run on any other type of
  909. processor or vice versa.
  910. config CPU_R4300
  911. bool "R4300"
  912. select CPU_SUPPORTS_32BIT_KERNEL
  913. select CPU_SUPPORTS_64BIT_KERNEL
  914. help
  915. MIPS Technologies R4300-series processors.
  916. config CPU_R4X00
  917. bool "R4x00"
  918. select CPU_SUPPORTS_32BIT_KERNEL
  919. select CPU_SUPPORTS_64BIT_KERNEL
  920. help
  921. MIPS Technologies R4000-series processors other than 4300, including
  922. the R4000, R4400, R4600, and 4700.
  923. config CPU_TX49XX
  924. bool "R49XX"
  925. select CPU_SUPPORTS_32BIT_KERNEL
  926. select CPU_SUPPORTS_64BIT_KERNEL
  927. config CPU_R5000
  928. bool "R5000"
  929. select CPU_SUPPORTS_32BIT_KERNEL
  930. select CPU_SUPPORTS_64BIT_KERNEL
  931. help
  932. MIPS Technologies R5000-series processors other than the Nevada.
  933. config CPU_R5432
  934. bool "R5432"
  935. config CPU_R6000
  936. bool "R6000"
  937. depends on EXPERIMENTAL
  938. select CPU_SUPPORTS_32BIT_KERNEL
  939. help
  940. MIPS Technologies R6000 and R6000A series processors. Note these
  941. processors are extremly rare and the support for them is incomplete.
  942. config CPU_NEVADA
  943. bool "RM52xx"
  944. select CPU_SUPPORTS_32BIT_KERNEL
  945. select CPU_SUPPORTS_64BIT_KERNEL
  946. help
  947. QED / PMC-Sierra RM52xx-series ("Nevada") processors.
  948. config CPU_R8000
  949. bool "R8000"
  950. depends on EXPERIMENTAL
  951. select CPU_SUPPORTS_64BIT_KERNEL
  952. help
  953. MIPS Technologies R8000 processors. Note these processors are
  954. uncommon and the support for them is incomplete.
  955. config CPU_R10000
  956. bool "R10000"
  957. select CPU_SUPPORTS_32BIT_KERNEL
  958. select CPU_SUPPORTS_64BIT_KERNEL
  959. help
  960. MIPS Technologies R10000-series processors.
  961. config CPU_RM7000
  962. bool "RM7000"
  963. select CPU_SUPPORTS_32BIT_KERNEL
  964. select CPU_SUPPORTS_64BIT_KERNEL
  965. config CPU_RM9000
  966. bool "RM9000"
  967. select CPU_SUPPORTS_32BIT_KERNEL
  968. select CPU_SUPPORTS_64BIT_KERNEL
  969. config CPU_SB1
  970. bool "SB1"
  971. select CPU_SUPPORTS_32BIT_KERNEL
  972. select CPU_SUPPORTS_64BIT_KERNEL
  973. endchoice
  974. choice
  975. prompt "Kernel page size"
  976. default PAGE_SIZE_4KB
  977. config PAGE_SIZE_4KB
  978. bool "4kB"
  979. help
  980. This option select the standard 4kB Linux page size. On some
  981. R3000-family processors this is the only available page size. Using
  982. 4kB page size will minimize memory consumption and is therefore
  983. recommended for low memory systems.
  984. config PAGE_SIZE_8KB
  985. bool "8kB"
  986. depends on EXPERIMENTAL && CPU_R8000
  987. help
  988. Using 8kB page size will result in higher performance kernel at
  989. the price of higher memory consumption. This option is available
  990. only on the R8000 processor. Not that at the time of this writing
  991. this option is still high experimental; there are also issues with
  992. compatibility of user applications.
  993. config PAGE_SIZE_16KB
  994. bool "16kB"
  995. depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
  996. help
  997. Using 16kB page size will result in higher performance kernel at
  998. the price of higher memory consumption. This option is available on
  999. all non-R3000 family processor. Not that at the time of this
  1000. writing this option is still high experimental; there are also
  1001. issues with compatibility of user applications.
  1002. config PAGE_SIZE_64KB
  1003. bool "64kB"
  1004. depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
  1005. help
  1006. Using 64kB page size will result in higher performance kernel at
  1007. the price of higher memory consumption. This option is available on
  1008. all non-R3000 family processor. Not that at the time of this
  1009. writing this option is still high experimental; there are also
  1010. issues with compatibility of user applications.
  1011. endchoice
  1012. config BOARD_SCACHE
  1013. bool
  1014. config IP22_CPU_SCACHE
  1015. bool
  1016. select BOARD_SCACHE
  1017. config R5000_CPU_SCACHE
  1018. bool
  1019. select BOARD_SCACHE
  1020. config RM7000_CPU_SCACHE
  1021. bool
  1022. select BOARD_SCACHE
  1023. config SIBYTE_DMA_PAGEOPS
  1024. bool "Use DMA to clear/copy pages"
  1025. depends on CPU_SB1
  1026. help
  1027. Instead of using the CPU to zero and copy pages, use a Data Mover
  1028. channel. These DMA channels are otherwise unused by the standard
  1029. SiByte Linux port. Seems to give a small performance benefit.
  1030. config CPU_HAS_PREFETCH
  1031. bool "Enable prefetches" if CPU_SB1 && !CPU_SB1_PASS_2
  1032. default y if CPU_MIPS32 || CPU_MIPS64 || CPU_RM7000 || CPU_RM9000 || CPU_R10000
  1033. config VTAG_ICACHE
  1034. bool "Support for Virtual Tagged I-cache" if CPU_MIPS64 || CPU_MIPS32
  1035. default y if CPU_SB1
  1036. config SB1_PASS_1_WORKAROUNDS
  1037. bool
  1038. depends on CPU_SB1_PASS_1
  1039. default y
  1040. config SB1_PASS_2_WORKAROUNDS
  1041. bool
  1042. depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
  1043. default y
  1044. config SB1_PASS_2_1_WORKAROUNDS
  1045. bool
  1046. depends on CPU_SB1 && CPU_SB1_PASS_2
  1047. default y
  1048. config 64BIT_PHYS_ADDR
  1049. bool "Support for 64-bit physical address space"
  1050. depends on (CPU_R4X00 || CPU_R5000 || CPU_RM7000 || CPU_RM9000 || CPU_R10000 || CPU_SB1 || CPU_MIPS32 || CPU_MIPS64) && 32BIT
  1051. config CPU_ADVANCED
  1052. bool "Override CPU Options"
  1053. depends on 32BIT
  1054. help
  1055. Saying yes here allows you to select support for various features
  1056. your CPU may or may not have. Most people should say N here.
  1057. config CPU_HAS_LLSC
  1058. bool "ll/sc Instructions available" if CPU_ADVANCED
  1059. default y if !CPU_ADVANCED && !CPU_R3000 && !CPU_VR41XX && !CPU_TX39XX
  1060. help
  1061. MIPS R4000 series and later provide the Load Linked (ll)
  1062. and Store Conditional (sc) instructions. More information is
  1063. available at <http://www.go-ecs.com/mips/miptek1.htm>.
  1064. Say Y here if your CPU has the ll and sc instructions. Say Y here
  1065. for better performance, N if you don't know. You must say Y here
  1066. for multiprocessor machines.
  1067. config CPU_HAS_LLDSCD
  1068. bool "lld/scd Instructions available" if CPU_ADVANCED
  1069. default y if !CPU_ADVANCED && !CPU_R3000 && !CPU_VR41XX && !CPU_TX39XX && !CPU_MIPS32
  1070. help
  1071. Say Y here if your CPU has the lld and scd instructions, the 64-bit
  1072. equivalents of ll and sc. Say Y here for better performance, N if
  1073. you don't know. You must say Y here for multiprocessor machines.
  1074. config CPU_HAS_WB
  1075. bool "Writeback Buffer available" if CPU_ADVANCED
  1076. default y if !CPU_ADVANCED && CPU_R3000 && MACH_DECSTATION
  1077. help
  1078. Say N here for slightly better performance. You must say Y here for
  1079. machines which require flushing of write buffers in software. Saying
  1080. Y is the safe option; N may result in kernel malfunction and crashes.
  1081. config CPU_HAS_SYNC
  1082. bool
  1083. depends on !CPU_R3000
  1084. default y
  1085. #
  1086. # - Highmem only makes sense for the 32-bit kernel.
  1087. # - The current highmem code will only work properly on physically indexed
  1088. # caches such as R3000, SB1, R7000 or those that look like they're virtually
  1089. # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
  1090. # moment we protect the user and offer the highmem option only on machines
  1091. # where it's known to be safe. This will not offer highmem on a few systems
  1092. # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
  1093. # indexed CPUs but we're playing safe.
  1094. # - We should not offer highmem for system of which we already know that they
  1095. # don't have memory configurations that could gain from highmem support in
  1096. # the kernel because they don't support configurations with RAM at physical
  1097. # addresses > 0x20000000.
  1098. #
  1099. config HIGHMEM
  1100. bool "High Memory Support"
  1101. depends on 32BIT && (CPU_R3000 || CPU_SB1 || CPU_R7000 || CPU_RM9000 || CPU_R10000) && !(MACH_DECSTATION || MOMENCO_JAGUAR_ATX)
  1102. config ARCH_FLATMEM_ENABLE
  1103. def_bool y
  1104. depends on !NUMA
  1105. source "mm/Kconfig"
  1106. config SMP
  1107. bool "Multi-Processing support"
  1108. depends on CPU_RM9000 || (SIBYTE_SB1250 && !SIBYTE_STANDALONE) || SGI_IP27
  1109. ---help---
  1110. This enables support for systems with more than one CPU. If you have
  1111. a system with only one CPU, like most personal computers, say N. If
  1112. you have a system with more than one CPU, say Y.
  1113. If you say N here, the kernel will run on single and multiprocessor
  1114. machines, but will use only one CPU of a multiprocessor machine. If
  1115. you say Y here, the kernel will run on many, but not all,
  1116. singleprocessor machines. On a singleprocessor machine, the kernel
  1117. will run faster if you say N here.
  1118. People using multiprocessor machines who say Y here should also say
  1119. Y to "Enhanced Real Time Clock Support", below.
  1120. See also the <file:Documentation/smp.txt> and the SMP-HOWTO
  1121. available at <http://www.tldp.org/docs.html#howto>.
  1122. If you don't know what to do here, say N.
  1123. config NR_CPUS
  1124. int "Maximum number of CPUs (2-64)"
  1125. range 2 64
  1126. depends on SMP
  1127. default "64" if SGI_IP27
  1128. default "2"
  1129. help
  1130. This allows you to specify the maximum number of CPUs which this
  1131. kernel will support. The maximum supported value is 32 for 32-bit
  1132. kernel and 64 for 64-bit kernels; the minimum value which makes
  1133. sense is 2.
  1134. This is purely to save memory - each supported CPU adds
  1135. approximately eight kilobytes to the kernel image.
  1136. config PREEMPT
  1137. bool "Preemptible Kernel"
  1138. help
  1139. This option reduces the latency of the kernel when reacting to
  1140. real-time or interactive events by allowing a low priority process to
  1141. be preempted even if it is in kernel mode executing a system call.
  1142. This allows applications to run more reliably even when the system is
  1143. under load.
  1144. config RTC_DS1742
  1145. bool "DS1742 BRAM/RTC support"
  1146. depends on TOSHIBA_JMR3927 || TOSHIBA_RBTX4927
  1147. config MIPS_INSANE_LARGE
  1148. bool "Support for large 64-bit configurations"
  1149. depends on CPU_R10000 && 64BIT
  1150. help
  1151. MIPS R10000 does support a 44 bit / 16TB address space as opposed to
  1152. previous 64-bit processors which only supported 40 bit / 1TB. If you
  1153. need processes of more than 1TB virtual address space, say Y here.
  1154. This will result in additional memory usage, so it is not
  1155. recommended for normal users.
  1156. config RWSEM_GENERIC_SPINLOCK
  1157. bool
  1158. default y
  1159. endmenu
  1160. menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
  1161. config HW_HAS_PCI
  1162. bool
  1163. config PCI
  1164. bool "Support for PCI controller"
  1165. depends on HW_HAS_PCI
  1166. help
  1167. Find out whether you have a PCI motherboard. PCI is the name of a
  1168. bus system, i.e. the way the CPU talks to the other stuff inside
  1169. your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
  1170. say Y, otherwise N.
  1171. The PCI-HOWTO, available from
  1172. <http://www.tldp.org/docs.html#howto>, contains valuable
  1173. information about which PCI hardware does work under Linux and which
  1174. doesn't.
  1175. config PCI_DOMAINS
  1176. bool
  1177. depends on PCI
  1178. source "drivers/pci/Kconfig"
  1179. #
  1180. # ISA support is now enabled via select. Too many systems still have the one
  1181. # or other ISA chip on the board that users don't know about so don't expect
  1182. # users to choose the right thing ...
  1183. #
  1184. config ISA
  1185. bool
  1186. config EISA
  1187. bool "EISA support"
  1188. depends on SGI_IP22 || SNI_RM200_PCI
  1189. select ISA
  1190. ---help---
  1191. The Extended Industry Standard Architecture (EISA) bus was
  1192. developed as an open alternative to the IBM MicroChannel bus.
  1193. The EISA bus provided some of the features of the IBM MicroChannel
  1194. bus while maintaining backward compatibility with cards made for
  1195. the older ISA bus. The EISA bus saw limited use between 1988 and
  1196. 1995 when it was made obsolete by the PCI bus.
  1197. Say Y here if you are building a kernel for an EISA-based machine.
  1198. Otherwise, say N.
  1199. source "drivers/eisa/Kconfig"
  1200. config TC
  1201. bool "TURBOchannel support"
  1202. depends on MACH_DECSTATION
  1203. help
  1204. TurboChannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
  1205. processors. Documentation on writing device drivers for TurboChannel
  1206. is available at:
  1207. <http://www.cs.arizona.edu/computer.help/policy/DIGITAL_unix/AA-PS3HD-TET1_html/TITLE.html>.
  1208. #config ACCESSBUS
  1209. # bool "Access.Bus support"
  1210. # depends on TC
  1211. config MMU
  1212. bool
  1213. default y
  1214. config MCA
  1215. bool
  1216. config SBUS
  1217. bool
  1218. source "drivers/pcmcia/Kconfig"
  1219. source "drivers/pci/hotplug/Kconfig"
  1220. endmenu
  1221. menu "Executable file formats"
  1222. source "fs/Kconfig.binfmt"
  1223. config TRAD_SIGNALS
  1224. bool
  1225. default y if 32BIT
  1226. config BUILD_ELF64
  1227. bool "Use 64-bit ELF format for building"
  1228. depends on 64BIT
  1229. help
  1230. A 64-bit kernel is usually built using the 64-bit ELF binary object
  1231. format as it's one that allows arbitrary 64-bit constructs. For
  1232. kernels that are loaded within the KSEG compatibility segments the
  1233. 32-bit ELF format can optionally be used resulting in a somewhat
  1234. smaller binary, but this option is not explicitly supported by the
  1235. toolchain and since binutils 2.14 it does not even work at all.
  1236. Say Y to use the 64-bit format or N to use the 32-bit one.
  1237. If unsure say Y.
  1238. config BINFMT_IRIX
  1239. bool "Include IRIX binary compatibility"
  1240. depends on !CPU_LITTLE_ENDIAN && 32BIT && BROKEN
  1241. config MIPS32_COMPAT
  1242. bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
  1243. depends on 64BIT
  1244. help
  1245. Select this option if you want Linux/MIPS 32-bit binary
  1246. compatibility. Since all software available for Linux/MIPS is
  1247. currently 32-bit you should say Y here.
  1248. config COMPAT
  1249. bool
  1250. depends on MIPS32_COMPAT
  1251. default y
  1252. config MIPS32_O32
  1253. bool "Kernel support for o32 binaries"
  1254. depends on MIPS32_COMPAT
  1255. help
  1256. Select this option if you want to run o32 binaries. These are pure
  1257. 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
  1258. existing binaries are in this format.
  1259. If unsure, say Y.
  1260. config MIPS32_N32
  1261. bool "Kernel support for n32 binaries"
  1262. depends on MIPS32_COMPAT
  1263. help
  1264. Select this option if you want to run n32 binaries. These are
  1265. 64-bit binaries using 32-bit quantities for addressing and certain
  1266. data that would normally be 64-bit. They are used in special
  1267. cases.
  1268. If unsure, say N.
  1269. config BINFMT_ELF32
  1270. bool
  1271. default y if MIPS32_O32 || MIPS32_N32
  1272. config PM
  1273. bool "Power Management support (EXPERIMENTAL)"
  1274. depends on EXPERIMENTAL && MACH_AU1X00
  1275. endmenu
  1276. source "net/Kconfig"
  1277. source "drivers/Kconfig"
  1278. source "fs/Kconfig"
  1279. source "arch/mips/Kconfig.debug"
  1280. source "security/Kconfig"
  1281. source "crypto/Kconfig"
  1282. source "lib/Kconfig"
  1283. #
  1284. # Use the generic interrupt handling code in kernel/irq/:
  1285. #
  1286. config GENERIC_HARDIRQS
  1287. bool
  1288. default y
  1289. config GENERIC_IRQ_PROBE
  1290. bool
  1291. default y
  1292. config ISA_DMA_API
  1293. bool
  1294. default y