Kconfig 47 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. mainmenu "Linux/MIPS Kernel Configuration"
  7. menu "Machine selection"
  8. config ZONE_DMA
  9. bool
  10. choice
  11. prompt "System type"
  12. default SGI_IP22
  13. config MACH_ALCHEMY
  14. bool "Alchemy processor based machines"
  15. config BASLER_EXCITE
  16. bool "Basler eXcite smart camera"
  17. select DMA_COHERENT
  18. select HW_HAS_PCI
  19. select IRQ_CPU
  20. select IRQ_CPU_RM7K
  21. select IRQ_CPU_RM9K
  22. select MIPS_RM9122
  23. select SYS_HAS_CPU_RM9000
  24. select SYS_SUPPORTS_32BIT_KERNEL
  25. select SYS_SUPPORTS_64BIT_KERNEL
  26. select SYS_SUPPORTS_BIG_ENDIAN
  27. select SYS_SUPPORTS_KGDB
  28. help
  29. The eXcite is a smart camera platform manufactured by
  30. Basler Vision Technologies AG.
  31. config BASLER_EXCITE_PROTOTYPE
  32. bool "Support for pre-release units"
  33. depends on BASLER_EXCITE
  34. default n
  35. help
  36. Pre-series (prototype) units are different from later ones in
  37. some ways. Select this option if you have one of these. Please
  38. note that a kernel built with this option selected will not be
  39. able to run on normal units.
  40. config MIPS_COBALT
  41. bool "Cobalt Server"
  42. select DMA_NONCOHERENT
  43. select HW_HAS_PCI
  44. select I8259
  45. select IRQ_CPU
  46. select PCI_GT64XXX_PCI0
  47. select SYS_HAS_CPU_NEVADA
  48. select SYS_HAS_EARLY_PRINTK
  49. select SYS_SUPPORTS_32BIT_KERNEL
  50. select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
  51. select SYS_SUPPORTS_LITTLE_ENDIAN
  52. select GENERIC_HARDIRQS_NO__DO_IRQ
  53. config MACH_DECSTATION
  54. bool "DECstations"
  55. select BOOT_ELF32
  56. select DMA_NONCOHERENT
  57. select NO_IOPORT
  58. select IRQ_CPU
  59. select SYS_HAS_CPU_R3000
  60. select SYS_HAS_CPU_R4X00
  61. select SYS_SUPPORTS_32BIT_KERNEL
  62. select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
  63. select SYS_SUPPORTS_LITTLE_ENDIAN
  64. select SYS_SUPPORTS_128HZ
  65. select SYS_SUPPORTS_256HZ
  66. select SYS_SUPPORTS_1024HZ
  67. help
  68. This enables support for DEC's MIPS based workstations. For details
  69. see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
  70. DECstation porting pages on <http://decstation.unix-ag.org/>.
  71. If you have one of the following DECstation Models you definitely
  72. want to choose R4xx0 for the CPU Type:
  73. DECstation 5000/50
  74. DECstation 5000/150
  75. DECstation 5000/260
  76. DECsystem 5900/260
  77. otherwise choose R3000.
  78. config MACH_JAZZ
  79. bool "Jazz family of machines"
  80. select ARC
  81. select ARC32
  82. select ARCH_MAY_HAVE_PC_FDC
  83. select GENERIC_ISA_DMA
  84. select I8259
  85. select ISA
  86. select PCSPEAKER
  87. select SYS_HAS_CPU_R4X00
  88. select SYS_SUPPORTS_32BIT_KERNEL
  89. select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
  90. select SYS_SUPPORTS_100HZ
  91. select GENERIC_HARDIRQS_NO__DO_IRQ
  92. help
  93. This a family of machines based on the MIPS R4030 chipset which was
  94. used by several vendors to build RISC/os and Windows NT workstations.
  95. Members include the Acer PICA, MIPS Magnum 4000, MIPS Millenium and
  96. Olivetti M700-10 workstations.
  97. config LEMOTE_FULONG
  98. bool "Lemote Fulong mini-PC"
  99. select ARCH_SPARSEMEM_ENABLE
  100. select SYS_HAS_CPU_LOONGSON2
  101. select DMA_NONCOHERENT
  102. select BOOT_ELF32
  103. select BOARD_SCACHE
  104. select HAVE_STD_PC_SERIAL_PORT
  105. select HW_HAS_PCI
  106. select I8259
  107. select ISA
  108. select IRQ_CPU
  109. select SYS_SUPPORTS_32BIT_KERNEL
  110. select SYS_SUPPORTS_64BIT_KERNEL
  111. select SYS_SUPPORTS_LITTLE_ENDIAN
  112. select SYS_SUPPORTS_HIGHMEM
  113. select SYS_HAS_EARLY_PRINTK
  114. select GENERIC_HARDIRQS_NO__DO_IRQ
  115. select CPU_HAS_WB
  116. help
  117. Lemote Fulong mini-PC board based on the Chinese Loongson-2E CPU and
  118. an FPGA northbridge
  119. config MIPS_ATLAS
  120. bool "MIPS Atlas board"
  121. select BOOT_ELF32
  122. select DMA_NONCOHERENT
  123. select SYS_HAS_EARLY_PRINTK
  124. select IRQ_CPU
  125. select HW_HAS_PCI
  126. select MIPS_BOARDS_GEN
  127. select MIPS_BONITO64
  128. select PCI_GT64XXX_PCI0
  129. select MIPS_MSC
  130. select RM7000_CPU_SCACHE
  131. select SWAP_IO_SPACE
  132. select SYS_HAS_CPU_MIPS32_R1
  133. select SYS_HAS_CPU_MIPS32_R2
  134. select SYS_HAS_CPU_MIPS64_R1
  135. select SYS_HAS_CPU_NEVADA
  136. select SYS_HAS_CPU_RM7000
  137. select SYS_SUPPORTS_32BIT_KERNEL
  138. select SYS_SUPPORTS_64BIT_KERNEL
  139. select SYS_SUPPORTS_BIG_ENDIAN
  140. select SYS_SUPPORTS_LITTLE_ENDIAN
  141. select SYS_SUPPORTS_MULTITHREADING if EXPERIMENTAL
  142. select SYS_SUPPORTS_SMARTMIPS
  143. select GENERIC_HARDIRQS_NO__DO_IRQ
  144. help
  145. This enables support for the MIPS Technologies Atlas evaluation
  146. board.
  147. config MIPS_MALTA
  148. bool "MIPS Malta board"
  149. select ARCH_MAY_HAVE_PC_FDC
  150. select BOOT_ELF32
  151. select DMA_NONCOHERENT
  152. select GENERIC_ISA_DMA
  153. select IRQ_CPU
  154. select HW_HAS_PCI
  155. select I8259
  156. select MIPS_BOARDS_GEN
  157. select MIPS_BONITO64
  158. select MIPS_CPU_SCACHE
  159. select PCI_GT64XXX_PCI0
  160. select MIPS_MSC
  161. select SWAP_IO_SPACE
  162. select SYS_HAS_CPU_MIPS32_R1
  163. select SYS_HAS_CPU_MIPS32_R2
  164. select SYS_HAS_CPU_MIPS64_R1
  165. select SYS_HAS_CPU_NEVADA
  166. select SYS_HAS_CPU_RM7000
  167. select SYS_HAS_EARLY_PRINTK
  168. select SYS_SUPPORTS_32BIT_KERNEL
  169. select SYS_SUPPORTS_64BIT_KERNEL
  170. select SYS_SUPPORTS_BIG_ENDIAN
  171. select SYS_SUPPORTS_LITTLE_ENDIAN
  172. select SYS_SUPPORTS_MULTITHREADING
  173. select SYS_SUPPORTS_SMARTMIPS
  174. help
  175. This enables support for the MIPS Technologies Malta evaluation
  176. board.
  177. config MIPS_SEAD
  178. bool "MIPS SEAD board (EXPERIMENTAL)"
  179. depends on EXPERIMENTAL
  180. select IRQ_CPU
  181. select DMA_NONCOHERENT
  182. select SYS_HAS_EARLY_PRINTK
  183. select MIPS_BOARDS_GEN
  184. select SYS_HAS_CPU_MIPS32_R1
  185. select SYS_HAS_CPU_MIPS32_R2
  186. select SYS_HAS_CPU_MIPS64_R1
  187. select SYS_SUPPORTS_32BIT_KERNEL
  188. select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
  189. select SYS_SUPPORTS_BIG_ENDIAN
  190. select SYS_SUPPORTS_LITTLE_ENDIAN
  191. select SYS_SUPPORTS_SMARTMIPS
  192. help
  193. This enables support for the MIPS Technologies SEAD evaluation
  194. board.
  195. config MIPS_SIM
  196. bool 'MIPS simulator (MIPSsim)'
  197. select DMA_NONCOHERENT
  198. select SYS_HAS_EARLY_PRINTK
  199. select IRQ_CPU
  200. select BOOT_RAW
  201. select SYS_HAS_CPU_MIPS32_R1
  202. select SYS_HAS_CPU_MIPS32_R2
  203. select SYS_HAS_EARLY_PRINTK
  204. select SYS_SUPPORTS_32BIT_KERNEL
  205. select SYS_SUPPORTS_BIG_ENDIAN
  206. select SYS_SUPPORTS_MULTITHREADING
  207. select SYS_SUPPORTS_LITTLE_ENDIAN
  208. help
  209. This option enables support for MIPS Technologies MIPSsim software
  210. emulator.
  211. config MARKEINS
  212. bool "NEC EMMA2RH Mark-eins"
  213. select DMA_NONCOHERENT
  214. select HW_HAS_PCI
  215. select IRQ_CPU
  216. select SWAP_IO_SPACE
  217. select SYS_SUPPORTS_32BIT_KERNEL
  218. select SYS_SUPPORTS_BIG_ENDIAN
  219. select SYS_SUPPORTS_LITTLE_ENDIAN
  220. select SYS_HAS_CPU_R5000
  221. help
  222. This enables support for the R5432-based NEC Mark-eins
  223. boards with R5500 CPU.
  224. config MACH_VR41XX
  225. bool "NEC VR4100 series based machines"
  226. select SYS_HAS_CPU_VR41XX
  227. select GENERIC_HARDIRQS_NO__DO_IRQ
  228. config PNX8550_JBS
  229. bool "Philips PNX8550 based JBS board"
  230. select PNX8550
  231. select SYS_SUPPORTS_LITTLE_ENDIAN
  232. config PNX8550_STB810
  233. bool "Philips PNX8550 based STB810 board"
  234. select PNX8550
  235. select SYS_SUPPORTS_LITTLE_ENDIAN
  236. config PMC_MSP
  237. bool "PMC-Sierra MSP chipsets"
  238. depends on EXPERIMENTAL
  239. select DMA_NONCOHERENT
  240. select SWAP_IO_SPACE
  241. select NO_EXCEPT_FILL
  242. select BOOT_RAW
  243. select SYS_HAS_CPU_MIPS32_R1
  244. select SYS_HAS_CPU_MIPS32_R2
  245. select SYS_SUPPORTS_32BIT_KERNEL
  246. select SYS_SUPPORTS_BIG_ENDIAN
  247. select SYS_SUPPORTS_KGDB
  248. select IRQ_CPU
  249. select SERIAL_8250
  250. select SERIAL_8250_CONSOLE
  251. help
  252. This adds support for the PMC-Sierra family of Multi-Service
  253. Processor System-On-A-Chips. These parts include a number
  254. of integrated peripherals, interfaces and DSPs in addition to
  255. a variety of MIPS cores.
  256. config PMC_YOSEMITE
  257. bool "PMC-Sierra Yosemite eval board"
  258. select DMA_COHERENT
  259. select HW_HAS_PCI
  260. select IRQ_CPU
  261. select IRQ_CPU_RM7K
  262. select IRQ_CPU_RM9K
  263. select SWAP_IO_SPACE
  264. select SYS_HAS_CPU_RM9000
  265. select SYS_HAS_EARLY_PRINTK
  266. select SYS_SUPPORTS_32BIT_KERNEL
  267. select SYS_SUPPORTS_64BIT_KERNEL
  268. select SYS_SUPPORTS_BIG_ENDIAN
  269. select SYS_SUPPORTS_HIGHMEM
  270. select SYS_SUPPORTS_KGDB
  271. select SYS_SUPPORTS_SMP
  272. help
  273. Yosemite is an evaluation board for the RM9000x2 processor
  274. manufactured by PMC-Sierra.
  275. config QEMU
  276. bool "Qemu"
  277. select DMA_COHERENT
  278. select GENERIC_ISA_DMA
  279. select HAVE_STD_PC_SERIAL_PORT
  280. select I8259
  281. select ISA
  282. select PCSPEAKER
  283. select SWAP_IO_SPACE
  284. select SYS_HAS_CPU_MIPS32_R1
  285. select SYS_SUPPORTS_32BIT_KERNEL
  286. select SYS_SUPPORTS_BIG_ENDIAN
  287. select SYS_SUPPORTS_LITTLE_ENDIAN
  288. select ARCH_SPARSEMEM_ENABLE
  289. select GENERIC_HARDIRQS_NO__DO_IRQ
  290. select NR_CPUS_DEFAULT_1
  291. select SYS_SUPPORTS_SMP
  292. help
  293. Qemu is a software emulator which among other architectures also
  294. can simulate a MIPS32 4Kc system. This patch adds support for the
  295. system architecture that currently is being simulated by Qemu. It
  296. will eventually be removed again when Qemu has the capability to
  297. simulate actual MIPS hardware platforms. More information on Qemu
  298. can be found at http://www.linux-mips.org/wiki/Qemu.
  299. config SGI_IP22
  300. bool "SGI IP22 (Indy/Indigo2)"
  301. select ARC
  302. select ARC32
  303. select BOOT_ELF32
  304. select DMA_NONCOHERENT
  305. select HW_HAS_EISA
  306. select IP22_CPU_SCACHE
  307. select IRQ_CPU
  308. select GENERIC_ISA_DMA_SUPPORT_BROKEN
  309. select SWAP_IO_SPACE
  310. select SYS_HAS_CPU_R4X00
  311. select SYS_HAS_CPU_R5000
  312. select SYS_HAS_EARLY_PRINTK
  313. select SYS_SUPPORTS_32BIT_KERNEL
  314. select SYS_SUPPORTS_64BIT_KERNEL
  315. select SYS_SUPPORTS_BIG_ENDIAN
  316. help
  317. This are the SGI Indy, Challenge S and Indigo2, as well as certain
  318. OEM variants like the Tandem CMN B006S. To compile a Linux kernel
  319. that runs on these, say Y here.
  320. config SGI_IP27
  321. bool "SGI IP27 (Origin200/2000)"
  322. select ARC
  323. select ARC64
  324. select BOOT_ELF64
  325. select DMA_IP27
  326. select SYS_HAS_EARLY_PRINTK
  327. select HW_HAS_PCI
  328. select NR_CPUS_DEFAULT_64
  329. select PCI_DOMAINS
  330. select SYS_HAS_CPU_R10000
  331. select SYS_SUPPORTS_64BIT_KERNEL
  332. select SYS_SUPPORTS_BIG_ENDIAN
  333. select SYS_SUPPORTS_KGDB
  334. select SYS_SUPPORTS_NUMA
  335. select SYS_SUPPORTS_SMP
  336. select GENERIC_HARDIRQS_NO__DO_IRQ
  337. help
  338. This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
  339. workstations. To compile a Linux kernel that runs on these, say Y
  340. here.
  341. config SGI_IP32
  342. bool "SGI IP32 (O2)"
  343. select ARC
  344. select ARC32
  345. select BOOT_ELF32
  346. select DMA_NONCOHERENT
  347. select HW_HAS_PCI
  348. select R5000_CPU_SCACHE
  349. select RM7000_CPU_SCACHE
  350. select SYS_HAS_CPU_R5000
  351. select SYS_HAS_CPU_R10000 if BROKEN
  352. select SYS_HAS_CPU_RM7000
  353. select SYS_HAS_CPU_NEVADA
  354. select SYS_SUPPORTS_64BIT_KERNEL
  355. select SYS_SUPPORTS_BIG_ENDIAN
  356. help
  357. If you want this kernel to run on SGI O2 workstation, say Y here.
  358. config SIBYTE_CRHINE
  359. bool "Sibyte BCM91120C-CRhine"
  360. depends on EXPERIMENTAL
  361. select BOOT_ELF32
  362. select DMA_COHERENT
  363. select SIBYTE_BCM1120
  364. select SWAP_IO_SPACE
  365. select SYS_HAS_CPU_SB1
  366. select SYS_SUPPORTS_BIG_ENDIAN
  367. select SYS_SUPPORTS_LITTLE_ENDIAN
  368. config SIBYTE_CARMEL
  369. bool "Sibyte BCM91120x-Carmel"
  370. depends on EXPERIMENTAL
  371. select BOOT_ELF32
  372. select DMA_COHERENT
  373. select SIBYTE_BCM1120
  374. select SWAP_IO_SPACE
  375. select SYS_HAS_CPU_SB1
  376. select SYS_SUPPORTS_BIG_ENDIAN
  377. select SYS_SUPPORTS_LITTLE_ENDIAN
  378. config SIBYTE_CRHONE
  379. bool "Sibyte BCM91125C-CRhone"
  380. depends on EXPERIMENTAL
  381. select BOOT_ELF32
  382. select DMA_COHERENT
  383. select SIBYTE_BCM1125
  384. select SWAP_IO_SPACE
  385. select SYS_HAS_CPU_SB1
  386. select SYS_SUPPORTS_BIG_ENDIAN
  387. select SYS_SUPPORTS_HIGHMEM
  388. select SYS_SUPPORTS_LITTLE_ENDIAN
  389. config SIBYTE_RHONE
  390. bool "Sibyte BCM91125E-Rhone"
  391. depends on EXPERIMENTAL
  392. select BOOT_ELF32
  393. select DMA_COHERENT
  394. select SIBYTE_BCM1125H
  395. select SWAP_IO_SPACE
  396. select SYS_HAS_CPU_SB1
  397. select SYS_SUPPORTS_BIG_ENDIAN
  398. select SYS_SUPPORTS_LITTLE_ENDIAN
  399. config SIBYTE_SWARM
  400. bool "Sibyte BCM91250A-SWARM"
  401. select BOOT_ELF32
  402. select DMA_COHERENT
  403. select NR_CPUS_DEFAULT_2
  404. select SIBYTE_SB1250
  405. select SWAP_IO_SPACE
  406. select SYS_HAS_CPU_SB1
  407. select SYS_SUPPORTS_BIG_ENDIAN
  408. select SYS_SUPPORTS_HIGHMEM
  409. select SYS_SUPPORTS_KGDB
  410. select SYS_SUPPORTS_LITTLE_ENDIAN
  411. config SIBYTE_LITTLESUR
  412. bool "Sibyte BCM91250C2-LittleSur"
  413. depends on EXPERIMENTAL
  414. select BOOT_ELF32
  415. select DMA_COHERENT
  416. select NR_CPUS_DEFAULT_2
  417. select SIBYTE_SB1250
  418. select SWAP_IO_SPACE
  419. select SYS_HAS_CPU_SB1
  420. select SYS_SUPPORTS_BIG_ENDIAN
  421. select SYS_SUPPORTS_HIGHMEM
  422. select SYS_SUPPORTS_LITTLE_ENDIAN
  423. config SIBYTE_SENTOSA
  424. bool "Sibyte BCM91250E-Sentosa"
  425. depends on EXPERIMENTAL
  426. select BOOT_ELF32
  427. select DMA_COHERENT
  428. select NR_CPUS_DEFAULT_2
  429. select SIBYTE_SB1250
  430. select SWAP_IO_SPACE
  431. select SYS_HAS_CPU_SB1
  432. select SYS_SUPPORTS_BIG_ENDIAN
  433. select SYS_SUPPORTS_LITTLE_ENDIAN
  434. config SIBYTE_PTSWARM
  435. bool "Sibyte BCM91250PT-PTSWARM"
  436. depends on EXPERIMENTAL
  437. select BOOT_ELF32
  438. select DMA_COHERENT
  439. select NR_CPUS_DEFAULT_2
  440. select SIBYTE_SB1250
  441. select SWAP_IO_SPACE
  442. select SYS_HAS_CPU_SB1
  443. select SYS_SUPPORTS_BIG_ENDIAN
  444. select SYS_SUPPORTS_HIGHMEM
  445. select SYS_SUPPORTS_LITTLE_ENDIAN
  446. config SIBYTE_BIGSUR
  447. bool "Sibyte BCM91480B-BigSur"
  448. select BOOT_ELF32
  449. select DMA_COHERENT
  450. select NR_CPUS_DEFAULT_4
  451. select PCI_DOMAINS
  452. select SIBYTE_BCM1x80
  453. select SWAP_IO_SPACE
  454. select SYS_HAS_CPU_SB1
  455. select SYS_SUPPORTS_BIG_ENDIAN
  456. select SYS_SUPPORTS_LITTLE_ENDIAN
  457. config SNI_RM
  458. bool "SNI RM200/300/400"
  459. select ARC if CPU_LITTLE_ENDIAN
  460. select ARC32 if CPU_LITTLE_ENDIAN
  461. select ARCH_MAY_HAVE_PC_FDC
  462. select BOOT_ELF32
  463. select DMA_NONCOHERENT
  464. select GENERIC_ISA_DMA
  465. select HW_HAS_EISA
  466. select HW_HAS_PCI
  467. select IRQ_CPU
  468. select I8259
  469. select ISA
  470. select PCSPEAKER
  471. select SWAP_IO_SPACE if CPU_BIG_ENDIAN
  472. select SYS_HAS_CPU_R4X00
  473. select SYS_HAS_CPU_R5000
  474. select SYS_HAS_CPU_R10000
  475. select R5000_CPU_SCACHE
  476. select SYS_HAS_EARLY_PRINTK
  477. select SYS_SUPPORTS_32BIT_KERNEL
  478. select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
  479. select SYS_SUPPORTS_BIG_ENDIAN
  480. select SYS_SUPPORTS_HIGHMEM
  481. select SYS_SUPPORTS_LITTLE_ENDIAN
  482. help
  483. The SNI RM200/300/400 are MIPS-based machines manufactured by
  484. Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
  485. Technology and now in turn merged with Fujitsu. Say Y here to
  486. support this machine type.
  487. config TOSHIBA_JMR3927
  488. bool "Toshiba JMR-TX3927 board"
  489. select DMA_NONCOHERENT
  490. select HW_HAS_PCI
  491. select MIPS_TX3927
  492. select SWAP_IO_SPACE
  493. select SYS_HAS_CPU_TX39XX
  494. select SYS_SUPPORTS_32BIT_KERNEL
  495. select SYS_SUPPORTS_LITTLE_ENDIAN
  496. select SYS_SUPPORTS_BIG_ENDIAN
  497. select GENERIC_HARDIRQS_NO__DO_IRQ
  498. config TOSHIBA_RBTX4927
  499. bool "Toshiba RBTX49[23]7 board"
  500. select DMA_NONCOHERENT
  501. select HAS_TXX9_SERIAL
  502. select HW_HAS_PCI
  503. select I8259
  504. select SWAP_IO_SPACE
  505. select SYS_HAS_CPU_TX49XX
  506. select SYS_SUPPORTS_32BIT_KERNEL
  507. select SYS_SUPPORTS_64BIT_KERNEL
  508. select SYS_SUPPORTS_LITTLE_ENDIAN
  509. select SYS_SUPPORTS_BIG_ENDIAN
  510. select SYS_SUPPORTS_KGDB
  511. select GENERIC_HARDIRQS_NO__DO_IRQ
  512. help
  513. This Toshiba board is based on the TX4927 processor. Say Y here to
  514. support this machine type
  515. config TOSHIBA_RBTX4938
  516. bool "Toshiba RBTX4938 board"
  517. select HAVE_STD_PC_SERIAL_PORT
  518. select DMA_NONCOHERENT
  519. select GENERIC_ISA_DMA
  520. select HAS_TXX9_SERIAL
  521. select HW_HAS_PCI
  522. select I8259
  523. select SWAP_IO_SPACE
  524. select SYS_HAS_CPU_TX49XX
  525. select SYS_SUPPORTS_32BIT_KERNEL
  526. select SYS_SUPPORTS_LITTLE_ENDIAN
  527. select SYS_SUPPORTS_BIG_ENDIAN
  528. select SYS_SUPPORTS_KGDB
  529. select GENERIC_HARDIRQS_NO__DO_IRQ
  530. select GENERIC_GPIO
  531. help
  532. This Toshiba board is based on the TX4938 processor. Say Y here to
  533. support this machine type
  534. config WR_PPMC
  535. bool "Wind River PPMC board"
  536. select IRQ_CPU
  537. select BOOT_ELF32
  538. select DMA_NONCOHERENT
  539. select HW_HAS_PCI
  540. select PCI_GT64XXX_PCI0
  541. select SWAP_IO_SPACE
  542. select SYS_HAS_CPU_MIPS32_R1
  543. select SYS_HAS_CPU_MIPS32_R2
  544. select SYS_HAS_CPU_MIPS64_R1
  545. select SYS_HAS_CPU_NEVADA
  546. select SYS_HAS_CPU_RM7000
  547. select SYS_SUPPORTS_32BIT_KERNEL
  548. select SYS_SUPPORTS_64BIT_KERNEL
  549. select SYS_SUPPORTS_BIG_ENDIAN
  550. select SYS_SUPPORTS_LITTLE_ENDIAN
  551. help
  552. This enables support for the Wind River MIPS32 4KC PPMC evaluation
  553. board, which is based on GT64120 bridge chip.
  554. endchoice
  555. source "arch/mips/au1000/Kconfig"
  556. source "arch/mips/jazz/Kconfig"
  557. source "arch/mips/pmc-sierra/Kconfig"
  558. source "arch/mips/sgi-ip27/Kconfig"
  559. source "arch/mips/sibyte/Kconfig"
  560. source "arch/mips/tx4927/Kconfig"
  561. source "arch/mips/tx4938/Kconfig"
  562. source "arch/mips/vr41xx/Kconfig"
  563. endmenu
  564. config RWSEM_GENERIC_SPINLOCK
  565. bool
  566. default y
  567. config RWSEM_XCHGADD_ALGORITHM
  568. bool
  569. config ARCH_HAS_ILOG2_U32
  570. bool
  571. default n
  572. config ARCH_HAS_ILOG2_U64
  573. bool
  574. default n
  575. config GENERIC_FIND_NEXT_BIT
  576. bool
  577. default y
  578. config GENERIC_HWEIGHT
  579. bool
  580. default y
  581. config GENERIC_CALIBRATE_DELAY
  582. bool
  583. default y
  584. config GENERIC_TIME
  585. bool
  586. default y
  587. config SCHED_NO_NO_OMIT_FRAME_POINTER
  588. bool
  589. default y
  590. config GENERIC_HARDIRQS_NO__DO_IRQ
  591. bool
  592. default n
  593. #
  594. # Select some configuration options automatically based on user selections.
  595. #
  596. config ARC
  597. bool
  598. config ARCH_MAY_HAVE_PC_FDC
  599. bool
  600. config BOOT_RAW
  601. bool
  602. config DMA_COHERENT
  603. bool
  604. config DMA_IP27
  605. bool
  606. config DMA_IP32
  607. bool
  608. select DMA_NEED_PCI_MAP_STATE
  609. config DMA_NONCOHERENT
  610. bool
  611. select DMA_NEED_PCI_MAP_STATE
  612. config DMA_NEED_PCI_MAP_STATE
  613. bool
  614. config EARLY_PRINTK
  615. bool "Early printk" if EMBEDDED && DEBUG_KERNEL
  616. depends on SYS_HAS_EARLY_PRINTK
  617. default y
  618. help
  619. This option enables special console drivers which allow the kernel
  620. to print messages very early in the bootup process.
  621. This is useful for kernel debugging when your machine crashes very
  622. early before the console code is initialized. For normal operation,
  623. it is not recommended because it looks ugly on some machines and
  624. doesn't cooperate with an X server. You should normally say N here,
  625. unless you want to debug such a crash.
  626. config SYS_HAS_EARLY_PRINTK
  627. bool
  628. config GENERIC_ISA_DMA
  629. bool
  630. select ZONE_DMA
  631. config I8259
  632. bool
  633. config MIPS_BONITO64
  634. bool
  635. config MIPS_MSC
  636. bool
  637. config MIPS_DISABLE_OBSOLETE_IDE
  638. bool
  639. config NO_IOPORT
  640. def_bool n
  641. config GENERIC_ISA_DMA_SUPPORT_BROKEN
  642. bool
  643. select ZONE_DMA
  644. config GENERIC_GPIO
  645. bool
  646. #
  647. # Endianess selection. Sufficiently obscure so many users don't know what to
  648. # answer,so we try hard to limit the available choices. Also the use of a
  649. # choice statement should be more obvious to the user.
  650. #
  651. choice
  652. prompt "Endianess selection"
  653. help
  654. Some MIPS machines can be configured for either little or big endian
  655. byte order. These modes require different kernels and a different
  656. Linux distribution. In general there is one preferred byteorder for a
  657. particular system but some systems are just as commonly used in the
  658. one or the other endianness.
  659. config CPU_BIG_ENDIAN
  660. bool "Big endian"
  661. depends on SYS_SUPPORTS_BIG_ENDIAN
  662. config CPU_LITTLE_ENDIAN
  663. bool "Little endian"
  664. depends on SYS_SUPPORTS_LITTLE_ENDIAN
  665. help
  666. endchoice
  667. config SYS_SUPPORTS_APM_EMULATION
  668. bool
  669. config SYS_SUPPORTS_BIG_ENDIAN
  670. bool
  671. config SYS_SUPPORTS_LITTLE_ENDIAN
  672. bool
  673. config IRQ_CPU
  674. bool
  675. config IRQ_CPU_RM7K
  676. bool
  677. config IRQ_CPU_RM9K
  678. bool
  679. config IRQ_MSP_SLP
  680. bool
  681. config IRQ_MSP_CIC
  682. bool
  683. config MIPS_BOARDS_GEN
  684. bool
  685. config PCI_GT64XXX_PCI0
  686. bool
  687. config NO_EXCEPT_FILL
  688. bool
  689. config MIPS_TX3927
  690. bool
  691. select HAS_TXX9_SERIAL
  692. config MIPS_RM9122
  693. bool
  694. select SERIAL_RM9000
  695. config PNX8550
  696. bool
  697. select SOC_PNX8550
  698. config SOC_PNX8550
  699. bool
  700. select DMA_NONCOHERENT
  701. select HW_HAS_PCI
  702. select SYS_HAS_CPU_MIPS32_R1
  703. select SYS_HAS_EARLY_PRINTK
  704. select SYS_SUPPORTS_32BIT_KERNEL
  705. select GENERIC_HARDIRQS_NO__DO_IRQ
  706. select SYS_SUPPORTS_KGDB
  707. select GENERIC_GPIO
  708. config SWAP_IO_SPACE
  709. bool
  710. config EMMA2RH
  711. bool
  712. depends on MARKEINS
  713. default y
  714. config SERIAL_RM9000
  715. bool
  716. #
  717. # Unfortunately not all GT64120 systems run the chip at the same clock.
  718. # As the user for the clock rate and try to minimize the available options.
  719. #
  720. choice
  721. prompt "Galileo Chip Clock"
  722. depends on MOMENCO_OCELOT
  723. default SYSCLK_100 if MOMENCO_OCELOT
  724. config SYSCLK_100
  725. bool "100" if MOMENCO_OCELOT
  726. endchoice
  727. config ARC32
  728. bool
  729. config BOOT_ELF32
  730. bool
  731. config MIPS_L1_CACHE_SHIFT
  732. int
  733. default "4" if MACH_DECSTATION
  734. default "7" if SGI_IP27 || SNI_RM
  735. default "4" if PMC_MSP4200_EVAL
  736. default "5"
  737. config HAVE_STD_PC_SERIAL_PORT
  738. bool
  739. config ARC_CONSOLE
  740. bool "ARC console support"
  741. depends on SGI_IP22 || (SNI_RM && CPU_LITTLE_ENDIAN)
  742. config ARC_MEMORY
  743. bool
  744. depends on MACH_JAZZ || SNI_RM || SGI_IP32
  745. default y
  746. config ARC_PROMLIB
  747. bool
  748. depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP32
  749. default y
  750. config ARC64
  751. bool
  752. config BOOT_ELF64
  753. bool
  754. menu "CPU selection"
  755. choice
  756. prompt "CPU type"
  757. default CPU_R4X00
  758. config CPU_LOONGSON2
  759. bool "Loongson 2"
  760. depends on SYS_HAS_CPU_LOONGSON2
  761. select CPU_SUPPORTS_32BIT_KERNEL
  762. select CPU_SUPPORTS_64BIT_KERNEL
  763. select CPU_SUPPORTS_HIGHMEM
  764. help
  765. The Loongson 2E processor implements the MIPS III instruction set
  766. with many extensions.
  767. config CPU_MIPS32_R1
  768. bool "MIPS32 Release 1"
  769. depends on SYS_HAS_CPU_MIPS32_R1
  770. select CPU_HAS_LLSC
  771. select CPU_HAS_PREFETCH
  772. select CPU_SUPPORTS_32BIT_KERNEL
  773. select CPU_SUPPORTS_HIGHMEM
  774. help
  775. Choose this option to build a kernel for release 1 or later of the
  776. MIPS32 architecture. Most modern embedded systems with a 32-bit
  777. MIPS processor are based on a MIPS32 processor. If you know the
  778. specific type of processor in your system, choose those that one
  779. otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
  780. Release 2 of the MIPS32 architecture is available since several
  781. years so chances are you even have a MIPS32 Release 2 processor
  782. in which case you should choose CPU_MIPS32_R2 instead for better
  783. performance.
  784. config CPU_MIPS32_R2
  785. bool "MIPS32 Release 2"
  786. depends on SYS_HAS_CPU_MIPS32_R2
  787. select CPU_HAS_LLSC
  788. select CPU_HAS_PREFETCH
  789. select CPU_SUPPORTS_32BIT_KERNEL
  790. select CPU_SUPPORTS_HIGHMEM
  791. help
  792. Choose this option to build a kernel for release 2 or later of the
  793. MIPS32 architecture. Most modern embedded systems with a 32-bit
  794. MIPS processor are based on a MIPS32 processor. If you know the
  795. specific type of processor in your system, choose those that one
  796. otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
  797. config CPU_MIPS64_R1
  798. bool "MIPS64 Release 1"
  799. depends on SYS_HAS_CPU_MIPS64_R1
  800. select CPU_HAS_LLSC
  801. select CPU_HAS_PREFETCH
  802. select CPU_SUPPORTS_32BIT_KERNEL
  803. select CPU_SUPPORTS_64BIT_KERNEL
  804. select CPU_SUPPORTS_HIGHMEM
  805. help
  806. Choose this option to build a kernel for release 1 or later of the
  807. MIPS64 architecture. Many modern embedded systems with a 64-bit
  808. MIPS processor are based on a MIPS64 processor. If you know the
  809. specific type of processor in your system, choose those that one
  810. otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
  811. Release 2 of the MIPS64 architecture is available since several
  812. years so chances are you even have a MIPS64 Release 2 processor
  813. in which case you should choose CPU_MIPS64_R2 instead for better
  814. performance.
  815. config CPU_MIPS64_R2
  816. bool "MIPS64 Release 2"
  817. depends on SYS_HAS_CPU_MIPS64_R2
  818. select CPU_HAS_LLSC
  819. select CPU_HAS_PREFETCH
  820. select CPU_SUPPORTS_32BIT_KERNEL
  821. select CPU_SUPPORTS_64BIT_KERNEL
  822. select CPU_SUPPORTS_HIGHMEM
  823. help
  824. Choose this option to build a kernel for release 2 or later of the
  825. MIPS64 architecture. Many modern embedded systems with a 64-bit
  826. MIPS processor are based on a MIPS64 processor. If you know the
  827. specific type of processor in your system, choose those that one
  828. otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
  829. config CPU_R3000
  830. bool "R3000"
  831. depends on SYS_HAS_CPU_R3000
  832. select CPU_HAS_WB
  833. select CPU_SUPPORTS_32BIT_KERNEL
  834. select CPU_SUPPORTS_HIGHMEM
  835. help
  836. Please make sure to pick the right CPU type. Linux/MIPS is not
  837. designed to be generic, i.e. Kernels compiled for R3000 CPUs will
  838. *not* work on R4000 machines and vice versa. However, since most
  839. of the supported machines have an R4000 (or similar) CPU, R4x00
  840. might be a safe bet. If the resulting kernel does not work,
  841. try to recompile with R3000.
  842. config CPU_TX39XX
  843. bool "R39XX"
  844. depends on SYS_HAS_CPU_TX39XX
  845. select CPU_SUPPORTS_32BIT_KERNEL
  846. config CPU_VR41XX
  847. bool "R41xx"
  848. depends on SYS_HAS_CPU_VR41XX
  849. select CPU_SUPPORTS_32BIT_KERNEL
  850. select CPU_SUPPORTS_64BIT_KERNEL
  851. help
  852. The options selects support for the NEC VR4100 series of processors.
  853. Only choose this option if you have one of these processors as a
  854. kernel built with this option will not run on any other type of
  855. processor or vice versa.
  856. config CPU_R4300
  857. bool "R4300"
  858. depends on SYS_HAS_CPU_R4300
  859. select CPU_HAS_LLSC
  860. select CPU_SUPPORTS_32BIT_KERNEL
  861. select CPU_SUPPORTS_64BIT_KERNEL
  862. help
  863. MIPS Technologies R4300-series processors.
  864. config CPU_R4X00
  865. bool "R4x00"
  866. depends on SYS_HAS_CPU_R4X00
  867. select CPU_HAS_LLSC
  868. select CPU_SUPPORTS_32BIT_KERNEL
  869. select CPU_SUPPORTS_64BIT_KERNEL
  870. help
  871. MIPS Technologies R4000-series processors other than 4300, including
  872. the R4000, R4400, R4600, and 4700.
  873. config CPU_TX49XX
  874. bool "R49XX"
  875. depends on SYS_HAS_CPU_TX49XX
  876. select CPU_HAS_LLSC
  877. select CPU_HAS_PREFETCH
  878. select CPU_SUPPORTS_32BIT_KERNEL
  879. select CPU_SUPPORTS_64BIT_KERNEL
  880. config CPU_R5000
  881. bool "R5000"
  882. depends on SYS_HAS_CPU_R5000
  883. select CPU_HAS_LLSC
  884. select CPU_SUPPORTS_32BIT_KERNEL
  885. select CPU_SUPPORTS_64BIT_KERNEL
  886. help
  887. MIPS Technologies R5000-series processors other than the Nevada.
  888. config CPU_R5432
  889. bool "R5432"
  890. depends on SYS_HAS_CPU_R5432
  891. select CPU_HAS_LLSC
  892. select CPU_SUPPORTS_32BIT_KERNEL
  893. select CPU_SUPPORTS_64BIT_KERNEL
  894. config CPU_R6000
  895. bool "R6000"
  896. depends on EXPERIMENTAL
  897. select CPU_HAS_LLSC
  898. depends on SYS_HAS_CPU_R6000
  899. select CPU_SUPPORTS_32BIT_KERNEL
  900. help
  901. MIPS Technologies R6000 and R6000A series processors. Note these
  902. processors are extremely rare and the support for them is incomplete.
  903. config CPU_NEVADA
  904. bool "RM52xx"
  905. depends on SYS_HAS_CPU_NEVADA
  906. select CPU_HAS_LLSC
  907. select CPU_SUPPORTS_32BIT_KERNEL
  908. select CPU_SUPPORTS_64BIT_KERNEL
  909. help
  910. QED / PMC-Sierra RM52xx-series ("Nevada") processors.
  911. config CPU_R8000
  912. bool "R8000"
  913. depends on EXPERIMENTAL
  914. depends on SYS_HAS_CPU_R8000
  915. select CPU_HAS_LLSC
  916. select CPU_HAS_PREFETCH
  917. select CPU_SUPPORTS_64BIT_KERNEL
  918. help
  919. MIPS Technologies R8000 processors. Note these processors are
  920. uncommon and the support for them is incomplete.
  921. config CPU_R10000
  922. bool "R10000"
  923. depends on SYS_HAS_CPU_R10000
  924. select CPU_HAS_LLSC
  925. select CPU_HAS_PREFETCH
  926. select CPU_SUPPORTS_32BIT_KERNEL
  927. select CPU_SUPPORTS_64BIT_KERNEL
  928. select CPU_SUPPORTS_HIGHMEM
  929. help
  930. MIPS Technologies R10000-series processors.
  931. config CPU_RM7000
  932. bool "RM7000"
  933. depends on SYS_HAS_CPU_RM7000
  934. select CPU_HAS_LLSC
  935. select CPU_HAS_PREFETCH
  936. select CPU_SUPPORTS_32BIT_KERNEL
  937. select CPU_SUPPORTS_64BIT_KERNEL
  938. select CPU_SUPPORTS_HIGHMEM
  939. config CPU_RM9000
  940. bool "RM9000"
  941. depends on SYS_HAS_CPU_RM9000
  942. select CPU_HAS_LLSC
  943. select CPU_HAS_PREFETCH
  944. select CPU_SUPPORTS_32BIT_KERNEL
  945. select CPU_SUPPORTS_64BIT_KERNEL
  946. select CPU_SUPPORTS_HIGHMEM
  947. select WEAK_ORDERING
  948. config CPU_SB1
  949. bool "SB1"
  950. depends on SYS_HAS_CPU_SB1
  951. select CPU_HAS_LLSC
  952. select CPU_SUPPORTS_32BIT_KERNEL
  953. select CPU_SUPPORTS_64BIT_KERNEL
  954. select CPU_SUPPORTS_HIGHMEM
  955. select WEAK_ORDERING
  956. endchoice
  957. config SYS_HAS_CPU_LOONGSON2
  958. bool
  959. config SYS_HAS_CPU_MIPS32_R1
  960. bool
  961. config SYS_HAS_CPU_MIPS32_R2
  962. bool
  963. config SYS_HAS_CPU_MIPS64_R1
  964. bool
  965. config SYS_HAS_CPU_MIPS64_R2
  966. bool
  967. config SYS_HAS_CPU_R3000
  968. bool
  969. config SYS_HAS_CPU_TX39XX
  970. bool
  971. config SYS_HAS_CPU_VR41XX
  972. bool
  973. config SYS_HAS_CPU_R4300
  974. bool
  975. config SYS_HAS_CPU_R4X00
  976. bool
  977. config SYS_HAS_CPU_TX49XX
  978. bool
  979. config SYS_HAS_CPU_R5000
  980. bool
  981. config SYS_HAS_CPU_R5432
  982. bool
  983. config SYS_HAS_CPU_R6000
  984. bool
  985. config SYS_HAS_CPU_NEVADA
  986. bool
  987. config SYS_HAS_CPU_R8000
  988. bool
  989. config SYS_HAS_CPU_R10000
  990. bool
  991. config SYS_HAS_CPU_RM7000
  992. bool
  993. config SYS_HAS_CPU_RM9000
  994. bool
  995. config SYS_HAS_CPU_SB1
  996. bool
  997. #
  998. # CPU may reorder R->R, R->W, W->R, W->W
  999. # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
  1000. #
  1001. config WEAK_ORDERING
  1002. bool
  1003. #
  1004. # CPU may reorder reads and writes beyond LL/SC
  1005. # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
  1006. #
  1007. config WEAK_REORDERING_BEYOND_LLSC
  1008. bool
  1009. endmenu
  1010. #
  1011. # These two indicate any level of the MIPS32 and MIPS64 architecture
  1012. #
  1013. config CPU_MIPS32
  1014. bool
  1015. default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
  1016. config CPU_MIPS64
  1017. bool
  1018. default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
  1019. #
  1020. # These two indicate the revision of the architecture, either Release 1 or Release 2
  1021. #
  1022. config CPU_MIPSR1
  1023. bool
  1024. default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
  1025. config CPU_MIPSR2
  1026. bool
  1027. default y if CPU_MIPS32_R2 || CPU_MIPS64_R2
  1028. config SYS_SUPPORTS_32BIT_KERNEL
  1029. bool
  1030. config SYS_SUPPORTS_64BIT_KERNEL
  1031. bool
  1032. config CPU_SUPPORTS_32BIT_KERNEL
  1033. bool
  1034. config CPU_SUPPORTS_64BIT_KERNEL
  1035. bool
  1036. menu "Kernel type"
  1037. choice
  1038. prompt "Kernel code model"
  1039. help
  1040. You should only select this option if you have a workload that
  1041. actually benefits from 64-bit processing or if your machine has
  1042. large memory. You will only be presented a single option in this
  1043. menu if your system does not support both 32-bit and 64-bit kernels.
  1044. config 32BIT
  1045. bool "32-bit kernel"
  1046. depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
  1047. select TRAD_SIGNALS
  1048. help
  1049. Select this option if you want to build a 32-bit kernel.
  1050. config 64BIT
  1051. bool "64-bit kernel"
  1052. depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
  1053. help
  1054. Select this option if you want to build a 64-bit kernel.
  1055. endchoice
  1056. choice
  1057. prompt "Kernel page size"
  1058. default PAGE_SIZE_4KB
  1059. config PAGE_SIZE_4KB
  1060. bool "4kB"
  1061. help
  1062. This option select the standard 4kB Linux page size. On some
  1063. R3000-family processors this is the only available page size. Using
  1064. 4kB page size will minimize memory consumption and is therefore
  1065. recommended for low memory systems.
  1066. config PAGE_SIZE_8KB
  1067. bool "8kB"
  1068. depends on EXPERIMENTAL && CPU_R8000
  1069. help
  1070. Using 8kB page size will result in higher performance kernel at
  1071. the price of higher memory consumption. This option is available
  1072. only on the R8000 processor. Not that at the time of this writing
  1073. this option is still high experimental; there are also issues with
  1074. compatibility of user applications.
  1075. config PAGE_SIZE_16KB
  1076. bool "16kB"
  1077. depends on !CPU_R3000 && !CPU_TX39XX
  1078. help
  1079. Using 16kB page size will result in higher performance kernel at
  1080. the price of higher memory consumption. This option is available on
  1081. all non-R3000 family processors. Note that you will need a suitable
  1082. Linux distribution to support this.
  1083. config PAGE_SIZE_64KB
  1084. bool "64kB"
  1085. depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
  1086. help
  1087. Using 64kB page size will result in higher performance kernel at
  1088. the price of higher memory consumption. This option is available on
  1089. all non-R3000 family processor. Not that at the time of this
  1090. writing this option is still high experimental.
  1091. endchoice
  1092. config BOARD_SCACHE
  1093. bool
  1094. config IP22_CPU_SCACHE
  1095. bool
  1096. select BOARD_SCACHE
  1097. #
  1098. # Support for a MIPS32 / MIPS64 style S-caches
  1099. #
  1100. config MIPS_CPU_SCACHE
  1101. bool
  1102. select BOARD_SCACHE
  1103. config R5000_CPU_SCACHE
  1104. bool
  1105. select BOARD_SCACHE
  1106. config RM7000_CPU_SCACHE
  1107. bool
  1108. select BOARD_SCACHE
  1109. config SIBYTE_DMA_PAGEOPS
  1110. bool "Use DMA to clear/copy pages"
  1111. depends on CPU_SB1
  1112. help
  1113. Instead of using the CPU to zero and copy pages, use a Data Mover
  1114. channel. These DMA channels are otherwise unused by the standard
  1115. SiByte Linux port. Seems to give a small performance benefit.
  1116. config CPU_HAS_PREFETCH
  1117. bool
  1118. choice
  1119. prompt "MIPS MT options"
  1120. config MIPS_MT_DISABLED
  1121. bool "Disable multithreading support."
  1122. help
  1123. Use this option if your workload can't take advantage of
  1124. MIPS hardware multithreading support. On systems that don't have
  1125. the option of an MT-enabled processor this option will be the only
  1126. option in this menu.
  1127. config MIPS_MT_SMP
  1128. bool "Use 1 TC on each available VPE for SMP"
  1129. depends on SYS_SUPPORTS_MULTITHREADING
  1130. select CPU_MIPSR2_IRQ_VI
  1131. select CPU_MIPSR2_IRQ_EI
  1132. select CPU_MIPSR2_SRS
  1133. select MIPS_MT
  1134. select NR_CPUS_DEFAULT_2
  1135. select SMP
  1136. select SYS_SUPPORTS_SMP
  1137. help
  1138. This is a kernel model which is also known a VSMP or lately
  1139. has been marketesed into SMVP.
  1140. config MIPS_MT_SMTC
  1141. bool "SMTC: Use all TCs on all VPEs for SMP"
  1142. depends on CPU_MIPS32_R2
  1143. #depends on CPU_MIPS64_R2 # once there is hardware ...
  1144. depends on SYS_SUPPORTS_MULTITHREADING
  1145. select CPU_MIPSR2_IRQ_VI
  1146. select CPU_MIPSR2_IRQ_EI
  1147. select CPU_MIPSR2_SRS
  1148. select MIPS_MT
  1149. select NR_CPUS_DEFAULT_8
  1150. select SMP
  1151. select SYS_SUPPORTS_SMP
  1152. help
  1153. This is a kernel model which is known a SMTC or lately has been
  1154. marketesed into SMVP.
  1155. endchoice
  1156. config MIPS_MT
  1157. bool
  1158. config SYS_SUPPORTS_MULTITHREADING
  1159. bool
  1160. config MIPS_MT_FPAFF
  1161. bool "Dynamic FPU affinity for FP-intensive threads"
  1162. default y
  1163. depends on MIPS_MT_SMP || MIPS_MT_SMTC
  1164. config MIPS_VPE_LOADER
  1165. bool "VPE loader support."
  1166. depends on SYS_SUPPORTS_MULTITHREADING
  1167. select CPU_MIPSR2_IRQ_VI
  1168. select CPU_MIPSR2_IRQ_EI
  1169. select CPU_MIPSR2_SRS
  1170. select MIPS_MT
  1171. help
  1172. Includes a loader for loading an elf relocatable object
  1173. onto another VPE and running it.
  1174. config MIPS_MT_SMTC_INSTANT_REPLAY
  1175. bool "Low-latency Dispatch of Deferred SMTC IPIs"
  1176. depends on MIPS_MT_SMTC && !PREEMPT
  1177. default y
  1178. help
  1179. SMTC pseudo-interrupts between TCs are deferred and queued
  1180. if the target TC is interrupt-inhibited (IXMT). In the first
  1181. SMTC prototypes, these queued IPIs were serviced on return
  1182. to user mode, or on entry into the kernel idle loop. The
  1183. INSTANT_REPLAY option dispatches them as part of local_irq_restore()
  1184. processing, which adds runtime overhead (hence the option to turn
  1185. it off), but ensures that IPIs are handled promptly even under
  1186. heavy I/O interrupt load.
  1187. config MIPS_MT_SMTC_IM_BACKSTOP
  1188. bool "Use per-TC register bits as backstop for inhibited IM bits"
  1189. depends on MIPS_MT_SMTC
  1190. default y
  1191. help
  1192. To support multiple TC microthreads acting as "CPUs" within
  1193. a VPE, VPE-wide interrupt mask bits must be specially manipulated
  1194. during interrupt handling. To support legacy drivers and interrupt
  1195. controller management code, SMTC has a "backstop" to track and
  1196. if necessary restore the interrupt mask. This has some performance
  1197. impact on interrupt service overhead. Disable it only if you know
  1198. what you are doing.
  1199. config MIPS_VPE_LOADER_TOM
  1200. bool "Load VPE program into memory hidden from linux"
  1201. depends on MIPS_VPE_LOADER
  1202. default y
  1203. help
  1204. The loader can use memory that is present but has been hidden from
  1205. Linux using the kernel command line option "mem=xxMB". It's up to
  1206. you to ensure the amount you put in the option and the space your
  1207. program requires is less or equal to the amount physically present.
  1208. # this should possibly be in drivers/char, but it is rather cpu related. Hmmm
  1209. config MIPS_VPE_APSP_API
  1210. bool "Enable support for AP/SP API (RTLX)"
  1211. depends on MIPS_VPE_LOADER
  1212. help
  1213. config MIPS_APSP_KSPD
  1214. bool "Enable KSPD"
  1215. depends on MIPS_VPE_APSP_API
  1216. default y
  1217. help
  1218. KSPD is a kernel daemon that accepts syscall requests from the SP
  1219. side, actions them and returns the results. It also handles the
  1220. "exit" syscall notifying other kernel modules the SP program is
  1221. exiting. You probably want to say yes here.
  1222. config SB1_PASS_1_WORKAROUNDS
  1223. bool
  1224. depends on CPU_SB1_PASS_1
  1225. default y
  1226. config SB1_PASS_2_WORKAROUNDS
  1227. bool
  1228. depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
  1229. default y
  1230. config SB1_PASS_2_1_WORKAROUNDS
  1231. bool
  1232. depends on CPU_SB1 && CPU_SB1_PASS_2
  1233. default y
  1234. config 64BIT_PHYS_ADDR
  1235. bool
  1236. config CPU_HAS_LLSC
  1237. bool
  1238. config CPU_HAS_SMARTMIPS
  1239. depends on SYS_SUPPORTS_SMARTMIPS
  1240. bool "Support for the SmartMIPS ASE"
  1241. help
  1242. SmartMIPS is a extension of the MIPS32 architecture aimed at
  1243. increased security at both hardware and software level for
  1244. smartcards. Enabling this option will allow proper use of the
  1245. SmartMIPS instructions by Linux applications. However a kernel with
  1246. this option will not work on a MIPS core without SmartMIPS core. If
  1247. you don't know you probably don't have SmartMIPS and should say N
  1248. here.
  1249. config CPU_HAS_WB
  1250. bool
  1251. config 64BIT_CONTEXT
  1252. bool "Save 64bit integer registers"
  1253. depends on 32BIT && CPU_LOONGSON2
  1254. help
  1255. Loongson2 CPU is 64bit , when used in 32BIT mode, its integer
  1256. registers can still be accessed as 64bit, mainly for multimedia
  1257. instructions. We must have all 64bit save/restored to make sure
  1258. those instructions to get correct result.
  1259. #
  1260. # Vectored interrupt mode is an R2 feature
  1261. #
  1262. config CPU_MIPSR2_IRQ_VI
  1263. bool
  1264. #
  1265. # Extended interrupt mode is an R2 feature
  1266. #
  1267. config CPU_MIPSR2_IRQ_EI
  1268. bool
  1269. #
  1270. # Shadow registers are an R2 feature
  1271. #
  1272. config CPU_MIPSR2_SRS
  1273. bool
  1274. config CPU_HAS_SYNC
  1275. bool
  1276. depends on !CPU_R3000
  1277. default y
  1278. #
  1279. # Use the generic interrupt handling code in kernel/irq/:
  1280. #
  1281. config GENERIC_HARDIRQS
  1282. bool
  1283. default y
  1284. config GENERIC_IRQ_PROBE
  1285. bool
  1286. default y
  1287. config IRQ_PER_CPU
  1288. bool
  1289. #
  1290. # - Highmem only makes sense for the 32-bit kernel.
  1291. # - The current highmem code will only work properly on physically indexed
  1292. # caches such as R3000, SB1, R7000 or those that look like they're virtually
  1293. # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
  1294. # moment we protect the user and offer the highmem option only on machines
  1295. # where it's known to be safe. This will not offer highmem on a few systems
  1296. # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
  1297. # indexed CPUs but we're playing safe.
  1298. # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
  1299. # know they might have memory configurations that could make use of highmem
  1300. # support.
  1301. #
  1302. config HIGHMEM
  1303. bool "High Memory Support"
  1304. depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
  1305. config CPU_SUPPORTS_HIGHMEM
  1306. bool
  1307. config SYS_SUPPORTS_HIGHMEM
  1308. bool
  1309. config SYS_SUPPORTS_SMARTMIPS
  1310. bool
  1311. config ARCH_FLATMEM_ENABLE
  1312. def_bool y
  1313. depends on !NUMA
  1314. config ARCH_DISCONTIGMEM_ENABLE
  1315. bool
  1316. default y if SGI_IP27
  1317. help
  1318. Say Y to support efficient handling of discontiguous physical memory,
  1319. for architectures which are either NUMA (Non-Uniform Memory Access)
  1320. or have huge holes in the physical address space for other reasons.
  1321. See <file:Documentation/vm/numa> for more.
  1322. config ARCH_SPARSEMEM_ENABLE
  1323. bool
  1324. select SPARSEMEM_STATIC
  1325. config NUMA
  1326. bool "NUMA Support"
  1327. depends on SYS_SUPPORTS_NUMA
  1328. help
  1329. Say Y to compile the kernel to support NUMA (Non-Uniform Memory
  1330. Access). This option improves performance on systems with more
  1331. than two nodes; on two node systems it is generally better to
  1332. leave it disabled; on single node systems disable this option
  1333. disabled.
  1334. config SYS_SUPPORTS_NUMA
  1335. bool
  1336. config NODES_SHIFT
  1337. int
  1338. default "6"
  1339. depends on NEED_MULTIPLE_NODES
  1340. source "mm/Kconfig"
  1341. config SMP
  1342. bool "Multi-Processing support"
  1343. depends on SYS_SUPPORTS_SMP
  1344. select IRQ_PER_CPU
  1345. help
  1346. This enables support for systems with more than one CPU. If you have
  1347. a system with only one CPU, like most personal computers, say N. If
  1348. you have a system with more than one CPU, say Y.
  1349. If you say N here, the kernel will run on single and multiprocessor
  1350. machines, but will use only one CPU of a multiprocessor machine. If
  1351. you say Y here, the kernel will run on many, but not all,
  1352. singleprocessor machines. On a singleprocessor machine, the kernel
  1353. will run faster if you say N here.
  1354. People using multiprocessor machines who say Y here should also say
  1355. Y to "Enhanced Real Time Clock Support", below.
  1356. See also the <file:Documentation/smp.txt> and the SMP-HOWTO
  1357. available at <http://www.tldp.org/docs.html#howto>.
  1358. If you don't know what to do here, say N.
  1359. config SYS_SUPPORTS_SMP
  1360. bool
  1361. config NR_CPUS_DEFAULT_1
  1362. bool
  1363. config NR_CPUS_DEFAULT_2
  1364. bool
  1365. config NR_CPUS_DEFAULT_4
  1366. bool
  1367. config NR_CPUS_DEFAULT_8
  1368. bool
  1369. config NR_CPUS_DEFAULT_16
  1370. bool
  1371. config NR_CPUS_DEFAULT_32
  1372. bool
  1373. config NR_CPUS_DEFAULT_64
  1374. bool
  1375. config NR_CPUS
  1376. int "Maximum number of CPUs (2-64)"
  1377. range 1 64 if NR_CPUS_DEFAULT_1
  1378. depends on SMP
  1379. default "1" if NR_CPUS_DEFAULT_1
  1380. default "2" if NR_CPUS_DEFAULT_2
  1381. default "4" if NR_CPUS_DEFAULT_4
  1382. default "8" if NR_CPUS_DEFAULT_8
  1383. default "16" if NR_CPUS_DEFAULT_16
  1384. default "32" if NR_CPUS_DEFAULT_32
  1385. default "64" if NR_CPUS_DEFAULT_64
  1386. help
  1387. This allows you to specify the maximum number of CPUs which this
  1388. kernel will support. The maximum supported value is 32 for 32-bit
  1389. kernel and 64 for 64-bit kernels; the minimum value which makes
  1390. sense is 1 for Qemu (useful only for kernel debugging purposes)
  1391. and 2 for all others.
  1392. This is purely to save memory - each supported CPU adds
  1393. approximately eight kilobytes to the kernel image. For best
  1394. performance should round up your number of processors to the next
  1395. power of two.
  1396. #
  1397. # Timer Interrupt Frequency Configuration
  1398. #
  1399. choice
  1400. prompt "Timer frequency"
  1401. default HZ_250
  1402. help
  1403. Allows the configuration of the timer frequency.
  1404. config HZ_48
  1405. bool "48 HZ" if SYS_SUPPORTS_48HZ
  1406. config HZ_100
  1407. bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
  1408. config HZ_128
  1409. bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
  1410. config HZ_250
  1411. bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
  1412. config HZ_256
  1413. bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
  1414. config HZ_1000
  1415. bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
  1416. config HZ_1024
  1417. bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
  1418. endchoice
  1419. config SYS_SUPPORTS_48HZ
  1420. bool
  1421. config SYS_SUPPORTS_100HZ
  1422. bool
  1423. config SYS_SUPPORTS_128HZ
  1424. bool
  1425. config SYS_SUPPORTS_250HZ
  1426. bool
  1427. config SYS_SUPPORTS_256HZ
  1428. bool
  1429. config SYS_SUPPORTS_1000HZ
  1430. bool
  1431. config SYS_SUPPORTS_1024HZ
  1432. bool
  1433. config SYS_SUPPORTS_ARBIT_HZ
  1434. bool
  1435. default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
  1436. !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
  1437. !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
  1438. !SYS_SUPPORTS_1024HZ
  1439. config HZ
  1440. int
  1441. default 48 if HZ_48
  1442. default 100 if HZ_100
  1443. default 128 if HZ_128
  1444. default 250 if HZ_250
  1445. default 256 if HZ_256
  1446. default 1000 if HZ_1000
  1447. default 1024 if HZ_1024
  1448. source "kernel/Kconfig.preempt"
  1449. config MIPS_INSANE_LARGE
  1450. bool "Support for large 64-bit configurations"
  1451. depends on CPU_R10000 && 64BIT
  1452. help
  1453. MIPS R10000 does support a 44 bit / 16TB address space as opposed to
  1454. previous 64-bit processors which only supported 40 bit / 1TB. If you
  1455. need processes of more than 1TB virtual address space, say Y here.
  1456. This will result in additional memory usage, so it is not
  1457. recommended for normal users.
  1458. config KEXEC
  1459. bool "Kexec system call (EXPERIMENTAL)"
  1460. depends on EXPERIMENTAL
  1461. help
  1462. kexec is a system call that implements the ability to shutdown your
  1463. current kernel, and to start another kernel. It is like a reboot
  1464. but it is independent of the system firmware. And like a reboot
  1465. you can start any kernel with it, not just Linux.
  1466. The name comes from the similiarity to the exec system call.
  1467. It is an ongoing process to be certain the hardware in a machine
  1468. is properly shutdown, so do not be surprised if this code does not
  1469. initially work for you. It may help to enable device hotplugging
  1470. support. As of this writing the exact hardware interface is
  1471. strongly in flux, so no good recommendation can be made.
  1472. config SECCOMP
  1473. bool "Enable seccomp to safely compute untrusted bytecode"
  1474. depends on PROC_FS
  1475. default y
  1476. help
  1477. This kernel feature is useful for number crunching applications
  1478. that may need to compute untrusted bytecode during their
  1479. execution. By using pipes or other transports made available to
  1480. the process as file descriptors supporting the read/write
  1481. syscalls, it's possible to isolate those applications in
  1482. their own address space using seccomp. Once seccomp is
  1483. enabled via /proc/<pid>/seccomp, it cannot be disabled
  1484. and the task is only allowed to execute a few safe syscalls
  1485. defined by each seccomp mode.
  1486. If unsure, say Y. Only embedded should say N here.
  1487. endmenu
  1488. config RWSEM_GENERIC_SPINLOCK
  1489. bool
  1490. default y
  1491. config LOCKDEP_SUPPORT
  1492. bool
  1493. default y
  1494. config STACKTRACE_SUPPORT
  1495. bool
  1496. default y
  1497. source "init/Kconfig"
  1498. menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
  1499. config HW_HAS_EISA
  1500. bool
  1501. config HW_HAS_PCI
  1502. bool
  1503. config PCI
  1504. bool "Support for PCI controller"
  1505. depends on HW_HAS_PCI
  1506. help
  1507. Find out whether you have a PCI motherboard. PCI is the name of a
  1508. bus system, i.e. the way the CPU talks to the other stuff inside
  1509. your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
  1510. say Y, otherwise N.
  1511. The PCI-HOWTO, available from
  1512. <http://www.tldp.org/docs.html#howto>, contains valuable
  1513. information about which PCI hardware does work under Linux and which
  1514. doesn't.
  1515. config PCI_DOMAINS
  1516. bool
  1517. depends on PCI
  1518. source "drivers/pci/Kconfig"
  1519. #
  1520. # ISA support is now enabled via select. Too many systems still have the one
  1521. # or other ISA chip on the board that users don't know about so don't expect
  1522. # users to choose the right thing ...
  1523. #
  1524. config ISA
  1525. bool
  1526. config EISA
  1527. bool "EISA support"
  1528. depends on HW_HAS_EISA
  1529. select ISA
  1530. select GENERIC_ISA_DMA
  1531. ---help---
  1532. The Extended Industry Standard Architecture (EISA) bus was
  1533. developed as an open alternative to the IBM MicroChannel bus.
  1534. The EISA bus provided some of the features of the IBM MicroChannel
  1535. bus while maintaining backward compatibility with cards made for
  1536. the older ISA bus. The EISA bus saw limited use between 1988 and
  1537. 1995 when it was made obsolete by the PCI bus.
  1538. Say Y here if you are building a kernel for an EISA-based machine.
  1539. Otherwise, say N.
  1540. source "drivers/eisa/Kconfig"
  1541. config TC
  1542. bool "TURBOchannel support"
  1543. depends on MACH_DECSTATION
  1544. help
  1545. TurboChannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
  1546. processors. Documentation on writing device drivers for TurboChannel
  1547. is available at:
  1548. <http://www.cs.arizona.edu/computer.help/policy/DIGITAL_unix/AA-PS3HD-TET1_html/TITLE.html>.
  1549. #config ACCESSBUS
  1550. # bool "Access.Bus support"
  1551. # depends on TC
  1552. config MMU
  1553. bool
  1554. default y
  1555. config PCSPEAKER
  1556. bool
  1557. source "drivers/pcmcia/Kconfig"
  1558. source "drivers/pci/hotplug/Kconfig"
  1559. endmenu
  1560. menu "Executable file formats"
  1561. source "fs/Kconfig.binfmt"
  1562. config TRAD_SIGNALS
  1563. bool
  1564. config BUILD_ELF64
  1565. bool "Use 64-bit ELF format for building"
  1566. depends on 64BIT
  1567. help
  1568. A 64-bit kernel is usually built using the 64-bit ELF binary object
  1569. format as it's one that allows arbitrary 64-bit constructs. For
  1570. kernels that are loaded within the KSEG compatibility segments the
  1571. 32-bit ELF format can optionally be used resulting in a somewhat
  1572. smaller binary, but this option is not explicitly supported by the
  1573. toolchain and since binutils 2.14 it does not even work at all.
  1574. Say Y to use the 64-bit format or N to use the 32-bit one.
  1575. If unsure say Y.
  1576. config BINFMT_IRIX
  1577. bool "Include IRIX binary compatibility"
  1578. depends on CPU_BIG_ENDIAN && 32BIT && BROKEN
  1579. config MIPS32_COMPAT
  1580. bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
  1581. depends on 64BIT
  1582. help
  1583. Select this option if you want Linux/MIPS 32-bit binary
  1584. compatibility. Since all software available for Linux/MIPS is
  1585. currently 32-bit you should say Y here.
  1586. config COMPAT
  1587. bool
  1588. depends on MIPS32_COMPAT
  1589. default y
  1590. config SYSVIPC_COMPAT
  1591. bool
  1592. depends on COMPAT && SYSVIPC
  1593. default y
  1594. config MIPS32_O32
  1595. bool "Kernel support for o32 binaries"
  1596. depends on MIPS32_COMPAT
  1597. help
  1598. Select this option if you want to run o32 binaries. These are pure
  1599. 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
  1600. existing binaries are in this format.
  1601. If unsure, say Y.
  1602. config MIPS32_N32
  1603. bool "Kernel support for n32 binaries"
  1604. depends on MIPS32_COMPAT
  1605. help
  1606. Select this option if you want to run n32 binaries. These are
  1607. 64-bit binaries using 32-bit quantities for addressing and certain
  1608. data that would normally be 64-bit. They are used in special
  1609. cases.
  1610. If unsure, say N.
  1611. config BINFMT_ELF32
  1612. bool
  1613. default y if MIPS32_O32 || MIPS32_N32
  1614. endmenu
  1615. menu "Power management options"
  1616. source "kernel/power/Kconfig"
  1617. endmenu
  1618. source "net/Kconfig"
  1619. source "drivers/Kconfig"
  1620. source "fs/Kconfig"
  1621. source "arch/mips/oprofile/Kconfig"
  1622. source "arch/mips/Kconfig.debug"
  1623. source "security/Kconfig"
  1624. source "crypto/Kconfig"
  1625. source "lib/Kconfig"