Kconfig 19 KB

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  1. config ALPHA
  2. bool
  3. default y
  4. select HAVE_AOUT
  5. select HAVE_IDE
  6. select HAVE_OPROFILE
  7. select HAVE_SYSCALL_WRAPPERS
  8. select HAVE_IRQ_WORK
  9. select HAVE_PCSPKR_PLATFORM
  10. select HAVE_PERF_EVENTS
  11. select HAVE_DMA_ATTRS
  12. select HAVE_GENERIC_HARDIRQS
  13. select GENERIC_IRQ_PROBE
  14. select AUTO_IRQ_AFFINITY if SMP
  15. select GENERIC_IRQ_SHOW
  16. select ARCH_WANT_OPTIONAL_GPIOLIB
  17. select ARCH_WANT_IPC_PARSE_VERSION
  18. select ARCH_HAVE_NMI_SAFE_CMPXCHG
  19. select GENERIC_SMP_IDLE_THREAD
  20. select GENERIC_CMOS_UPDATE
  21. select GENERIC_STRNCPY_FROM_USER
  22. select GENERIC_STRNLEN_USER
  23. help
  24. The Alpha is a 64-bit general-purpose processor designed and
  25. marketed by the Digital Equipment Corporation of blessed memory,
  26. now Hewlett-Packard. The Alpha Linux project has a home page at
  27. <http://www.alphalinux.org/>.
  28. config 64BIT
  29. def_bool y
  30. config MMU
  31. bool
  32. default y
  33. config RWSEM_GENERIC_SPINLOCK
  34. bool
  35. config RWSEM_XCHGADD_ALGORITHM
  36. bool
  37. default y
  38. config ARCH_HAS_ILOG2_U32
  39. bool
  40. default n
  41. config ARCH_HAS_ILOG2_U64
  42. bool
  43. default n
  44. config GENERIC_CALIBRATE_DELAY
  45. bool
  46. default y
  47. config GENERIC_GPIO
  48. bool
  49. config ZONE_DMA
  50. bool
  51. default y
  52. config ARCH_DMA_ADDR_T_64BIT
  53. def_bool y
  54. config NEED_DMA_MAP_STATE
  55. def_bool y
  56. config NEED_SG_DMA_LENGTH
  57. def_bool y
  58. config GENERIC_ISA_DMA
  59. bool
  60. default y
  61. source "init/Kconfig"
  62. source "kernel/Kconfig.freezer"
  63. menu "System setup"
  64. choice
  65. prompt "Alpha system type"
  66. default ALPHA_GENERIC
  67. ---help---
  68. This is the system type of your hardware. A "generic" kernel will
  69. run on any supported Alpha system. However, if you configure a
  70. kernel for your specific system, it will be faster and smaller.
  71. To find out what type of Alpha system you have, you may want to
  72. check out the Linux/Alpha FAQ, accessible on the WWW from
  73. <http://www.alphalinux.org/>. In summary:
  74. Alcor/Alpha-XLT AS 600, AS 500, XL-300, XL-366
  75. Alpha-XL XL-233, XL-266
  76. AlphaBook1 Alpha laptop
  77. Avanti AS 200, AS 205, AS 250, AS 255, AS 300, AS 400
  78. Cabriolet AlphaPC64, AlphaPCI64
  79. DP264 DP264 / DS20 / ES40 / DS10 / DS10L
  80. EB164 EB164 21164 evaluation board
  81. EB64+ EB64+ 21064 evaluation board
  82. EB66 EB66 21066 evaluation board
  83. EB66+ EB66+ 21066 evaluation board
  84. Jensen DECpc 150, DEC 2000 models 300, 500
  85. LX164 AlphaPC164-LX
  86. Lynx AS 2100A
  87. Miata Personal Workstation 433/500/600 a/au
  88. Marvel AlphaServer ES47 / ES80 / GS1280
  89. Mikasa AS 1000
  90. Noname AXPpci33, UDB (Multia)
  91. Noritake AS 1000A, AS 600A, AS 800
  92. PC164 AlphaPC164
  93. Rawhide AS 1200, AS 4000, AS 4100
  94. Ruffian RPX164-2, AlphaPC164-UX, AlphaPC164-BX
  95. SX164 AlphaPC164-SX
  96. Sable AS 2000, AS 2100
  97. Shark DS 20L
  98. Takara Takara (OEM)
  99. Titan AlphaServer ES45 / DS25 / DS15
  100. Wildfire AlphaServer GS 40/80/160/320
  101. If you don't know what to do, choose "generic".
  102. config ALPHA_GENERIC
  103. bool "Generic"
  104. help
  105. A generic kernel will run on all supported Alpha hardware.
  106. config ALPHA_ALCOR
  107. bool "Alcor/Alpha-XLT"
  108. help
  109. For systems using the Digital ALCOR chipset: 5 chips (4, 64-bit data
  110. slices (Data Switch, DSW) - 208-pin PQFP and 1 control (Control, I/O
  111. Address, CIA) - a 383 pin plastic PGA). It provides a DRAM
  112. controller (256-bit memory bus) and a PCI interface. It also does
  113. all the work required to support an external Bcache and to maintain
  114. memory coherence when a PCI device DMAs into (or out of) memory.
  115. config ALPHA_XL
  116. bool "Alpha-XL"
  117. help
  118. XL-233 and XL-266-based Alpha systems.
  119. config ALPHA_BOOK1
  120. bool "AlphaBook1"
  121. help
  122. Dec AlphaBook1/Burns Alpha-based laptops.
  123. config ALPHA_AVANTI_CH
  124. bool "Avanti"
  125. config ALPHA_CABRIOLET
  126. bool "Cabriolet"
  127. help
  128. Cabriolet AlphaPC64, AlphaPCI64 systems. Derived from EB64+ but now
  129. baby-AT with Flash boot ROM, no on-board SCSI or Ethernet. 3 ISA
  130. slots, 4 PCI slots (one pair are on a shared slot), uses plug-in
  131. Bcache SIMMs. Requires power supply with 3.3V output.
  132. config ALPHA_DP264
  133. bool "DP264"
  134. help
  135. Various 21264 systems with the tsunami core logic chipset.
  136. API Networks: 264DP, UP2000(+), CS20;
  137. Compaq: DS10(E,L), XP900, XP1000, DS20(E), ES40.
  138. config ALPHA_EB164
  139. bool "EB164"
  140. help
  141. EB164 21164 evaluation board from DEC. Uses 21164 and ALCOR. Has
  142. ISA and PCI expansion (3 ISA slots, 2 64-bit PCI slots (one is
  143. shared with an ISA slot) and 2 32-bit PCI slots. Uses plus-in
  144. Bcache SIMMs. I/O sub-system provides SuperI/O (2S, 1P, FD), KBD,
  145. MOUSE (PS2 style), RTC/NVRAM. Boot ROM is Flash. PC-AT-sized
  146. motherboard. Requires power supply with 3.3V output.
  147. config ALPHA_EB64P_CH
  148. bool "EB64+"
  149. config ALPHA_EB66
  150. bool "EB66"
  151. help
  152. A Digital DS group board. Uses 21066 or 21066A. I/O sub-system is
  153. identical to EB64+. Baby PC-AT size. Runs from standard PC power
  154. supply. The EB66 schematic was published as a marketing poster
  155. advertising the 21066 as "the first microprocessor in the world with
  156. embedded PCI".
  157. config ALPHA_EB66P
  158. bool "EB66+"
  159. help
  160. Later variant of the EB66 board.
  161. config ALPHA_EIGER
  162. bool "Eiger"
  163. help
  164. Apparently an obscure OEM single-board computer based on the
  165. Typhoon/Tsunami chipset family. Information on it is scanty.
  166. config ALPHA_JENSEN
  167. bool "Jensen"
  168. help
  169. DEC PC 150 AXP (aka Jensen): This is a very old Digital system - one
  170. of the first-generation Alpha systems. A number of these systems
  171. seem to be available on the second- hand market. The Jensen is a
  172. floor-standing tower system which originally used a 150MHz 21064 It
  173. used programmable logic to interface a 486 EISA I/O bridge to the
  174. CPU.
  175. config ALPHA_LX164
  176. bool "LX164"
  177. help
  178. A technical overview of this board is available at
  179. <http://www.unix-ag.org/Linux-Alpha/Architectures/LX164.html>.
  180. config ALPHA_LYNX
  181. bool "Lynx"
  182. help
  183. AlphaServer 2100A-based systems.
  184. config ALPHA_MARVEL
  185. bool "Marvel"
  186. help
  187. AlphaServer ES47 / ES80 / GS1280 based on EV7.
  188. config ALPHA_MIATA
  189. bool "Miata"
  190. help
  191. The Digital PersonalWorkStation (PWS 433a, 433au, 500a, 500au, 600a,
  192. or 600au).
  193. config ALPHA_MIKASA
  194. bool "Mikasa"
  195. help
  196. AlphaServer 1000-based Alpha systems.
  197. config ALPHA_NAUTILUS
  198. bool "Nautilus"
  199. help
  200. Alpha systems based on the AMD 751 & ALI 1543C chipsets.
  201. config ALPHA_NONAME_CH
  202. bool "Noname"
  203. config ALPHA_NORITAKE
  204. bool "Noritake"
  205. help
  206. AlphaServer 1000A, AlphaServer 600A, and AlphaServer 800-based
  207. systems.
  208. config ALPHA_PC164
  209. bool "PC164"
  210. config ALPHA_P2K
  211. bool "Platform2000"
  212. config ALPHA_RAWHIDE
  213. bool "Rawhide"
  214. help
  215. AlphaServer 1200, AlphaServer 4000 and AlphaServer 4100 machines.
  216. See HOWTO at
  217. <http://www.alphalinux.org/docs/rawhide/4100_install.shtml>.
  218. config ALPHA_RUFFIAN
  219. bool "Ruffian"
  220. help
  221. Samsung APC164UX. There is a page on known problems and workarounds
  222. at <http://www.alphalinux.org/faq/FAQ-11.html>.
  223. config ALPHA_RX164
  224. bool "RX164"
  225. config ALPHA_SX164
  226. bool "SX164"
  227. config ALPHA_SABLE
  228. bool "Sable"
  229. help
  230. Digital AlphaServer 2000 and 2100-based systems.
  231. config ALPHA_SHARK
  232. bool "Shark"
  233. config ALPHA_TAKARA
  234. bool "Takara"
  235. help
  236. Alpha 11164-based OEM single-board computer.
  237. config ALPHA_TITAN
  238. bool "Titan"
  239. help
  240. AlphaServer ES45/DS25 SMP based on EV68 and Titan chipset.
  241. config ALPHA_WILDFIRE
  242. bool "Wildfire"
  243. help
  244. AlphaServer GS 40/80/160/320 SMP based on the EV67 core.
  245. endchoice
  246. # clear all implied options (don't want default values for those):
  247. # Most of these machines have ISA slots; not exactly sure which don't,
  248. # and this doesn't activate hordes of code, so do it always.
  249. config ISA
  250. bool
  251. default y
  252. help
  253. Find out whether you have ISA slots on your motherboard. ISA is the
  254. name of a bus system, i.e. the way the CPU talks to the other stuff
  255. inside your box. Other bus systems are PCI, EISA, MicroChannel
  256. (MCA) or VESA. ISA is an older system, now being displaced by PCI;
  257. newer boards don't support it. If you have ISA, say Y, otherwise N.
  258. config ISA_DMA_API
  259. bool
  260. default y
  261. config PCI
  262. bool
  263. depends on !ALPHA_JENSEN
  264. select GENERIC_PCI_IOMAP
  265. default y
  266. help
  267. Find out whether you have a PCI motherboard. PCI is the name of a
  268. bus system, i.e. the way the CPU talks to the other stuff inside
  269. your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
  270. VESA. If you have PCI, say Y, otherwise N.
  271. config PCI_DOMAINS
  272. bool
  273. default y
  274. config PCI_SYSCALL
  275. def_bool PCI
  276. config IOMMU_HELPER
  277. def_bool PCI
  278. config ALPHA_NONAME
  279. bool
  280. depends on ALPHA_BOOK1 || ALPHA_NONAME_CH
  281. default y
  282. help
  283. The AXPpci33 (aka NoName), is based on the EB66 (includes the Multia
  284. UDB). This design was produced by Digital's Technical OEM (TOEM)
  285. group. It uses the 21066 processor running at 166MHz or 233MHz. It
  286. is a baby-AT size, and runs from a standard PC power supply. It has
  287. 5 ISA slots and 3 PCI slots (one pair are a shared slot). There are
  288. 2 versions, with either PS/2 or large DIN connectors for the
  289. keyboard.
  290. config ALPHA_EV4
  291. bool
  292. depends on ALPHA_JENSEN || (ALPHA_SABLE && !ALPHA_GAMMA) || ALPHA_LYNX || ALPHA_NORITAKE && !ALPHA_PRIMO || ALPHA_MIKASA && !ALPHA_PRIMO || ALPHA_CABRIOLET || ALPHA_AVANTI_CH || ALPHA_EB64P_CH || ALPHA_XL || ALPHA_NONAME || ALPHA_EB66 || ALPHA_EB66P || ALPHA_P2K
  293. default y if !ALPHA_LYNX
  294. config ALPHA_LCA
  295. bool
  296. depends on ALPHA_NONAME || ALPHA_EB66 || ALPHA_EB66P || ALPHA_P2K
  297. default y
  298. config ALPHA_APECS
  299. bool
  300. depends on !ALPHA_PRIMO && (ALPHA_NORITAKE || ALPHA_MIKASA) || ALPHA_CABRIOLET || ALPHA_AVANTI_CH || ALPHA_EB64P_CH || ALPHA_XL
  301. default y
  302. config ALPHA_EB64P
  303. bool
  304. depends on ALPHA_CABRIOLET || ALPHA_EB64P_CH
  305. default y
  306. help
  307. Uses 21064 or 21064A and APECs. Has ISA and PCI expansion (3 ISA,
  308. 2 PCI, one pair are on a shared slot). Supports 36-bit DRAM SIMs.
  309. ISA bus generated by Intel SaturnI/O PCI-ISA bridge. On-board SCSI
  310. (NCR 810 on PCI) Ethernet (Digital 21040), KBD, MOUSE (PS2 style),
  311. SuperI/O (2S, 1P, FD), RTC/NVRAM. Boot ROM is EPROM. PC-AT size.
  312. Runs from standard PC power supply.
  313. config ALPHA_EV5
  314. bool "EV5 CPU(s) (model 5/xxx)?" if ALPHA_LYNX
  315. default y if ALPHA_RX164 || ALPHA_RAWHIDE || ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN || ALPHA_SABLE && ALPHA_GAMMA || ALPHA_NORITAKE && ALPHA_PRIMO || ALPHA_MIKASA && ALPHA_PRIMO || ALPHA_PC164 || ALPHA_TAKARA || ALPHA_EB164 || ALPHA_ALCOR
  316. config ALPHA_EV4
  317. bool
  318. default y if ALPHA_LYNX && !ALPHA_EV5
  319. config ALPHA_CIA
  320. bool
  321. depends on ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN || ALPHA_NORITAKE && ALPHA_PRIMO || ALPHA_MIKASA && ALPHA_PRIMO || ALPHA_PC164 || ALPHA_TAKARA || ALPHA_EB164 || ALPHA_ALCOR
  322. default y
  323. config ALPHA_EV56
  324. bool "EV56 CPU (speed >= 366MHz)?" if ALPHA_ALCOR
  325. default y if ALPHA_RX164 || ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN || ALPHA_PC164 || ALPHA_TAKARA
  326. config ALPHA_EV56
  327. prompt "EV56 CPU (speed >= 333MHz)?"
  328. depends on ALPHA_NORITAKE || ALPHA_PRIMO
  329. config ALPHA_EV56
  330. prompt "EV56 CPU (speed >= 400MHz)?"
  331. depends on ALPHA_RAWHIDE
  332. config ALPHA_PRIMO
  333. bool "EV5 CPU daughtercard (model 5/xxx)?"
  334. depends on ALPHA_NORITAKE || ALPHA_MIKASA
  335. help
  336. Say Y if you have an AS 1000 5/xxx or an AS 1000A 5/xxx.
  337. config ALPHA_GAMMA
  338. bool "EV5 CPU(s) (model 5/xxx)?"
  339. depends on ALPHA_SABLE
  340. help
  341. Say Y if you have an AS 2000 5/xxx or an AS 2100 5/xxx.
  342. config ALPHA_GAMMA
  343. bool
  344. depends on ALPHA_LYNX
  345. default y
  346. config ALPHA_T2
  347. bool
  348. depends on ALPHA_SABLE || ALPHA_LYNX
  349. default y
  350. config ALPHA_PYXIS
  351. bool
  352. depends on ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN
  353. default y
  354. config ALPHA_EV6
  355. bool
  356. depends on ALPHA_NAUTILUS || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_DP264 || ALPHA_EIGER || ALPHA_MARVEL
  357. default y
  358. config ALPHA_TSUNAMI
  359. bool
  360. depends on ALPHA_SHARK || ALPHA_DP264 || ALPHA_EIGER
  361. default y
  362. config ALPHA_EV67
  363. bool "EV67 (or later) CPU (speed > 600MHz)?" if ALPHA_DP264 || ALPHA_EIGER
  364. default y if ALPHA_NAUTILUS || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_MARVEL
  365. help
  366. Is this a machine based on the EV67 core? If in doubt, select N here
  367. and the machine will be treated as an EV6.
  368. config ALPHA_MCPCIA
  369. bool
  370. depends on ALPHA_RAWHIDE
  371. default y
  372. config ALPHA_POLARIS
  373. bool
  374. depends on ALPHA_RX164
  375. default y
  376. config ALPHA_IRONGATE
  377. bool
  378. depends on ALPHA_NAUTILUS
  379. default y
  380. config GENERIC_HWEIGHT
  381. bool
  382. default y if !ALPHA_EV67
  383. config ALPHA_AVANTI
  384. bool
  385. depends on ALPHA_XL || ALPHA_AVANTI_CH
  386. default y
  387. help
  388. Avanti AS 200, AS 205, AS 250, AS 255, AS 300, and AS 400-based
  389. Alphas. Info at
  390. <http://www.unix-ag.org/Linux-Alpha/Architectures/Avanti.html>.
  391. config ALPHA_BROKEN_IRQ_MASK
  392. bool
  393. depends on ALPHA_GENERIC || ALPHA_PC164
  394. default y
  395. config VGA_HOSE
  396. bool
  397. depends on VGA_CONSOLE && (ALPHA_GENERIC || ALPHA_TITAN || ALPHA_MARVEL || ALPHA_TSUNAMI)
  398. default y
  399. help
  400. Support VGA on an arbitrary hose; needed for several platforms
  401. which always have multiple hoses, and whose consoles support it.
  402. config ALPHA_SRM
  403. bool "Use SRM as bootloader" if ALPHA_CABRIOLET || ALPHA_AVANTI_CH || ALPHA_EB64P || ALPHA_PC164 || ALPHA_TAKARA || ALPHA_EB164 || ALPHA_ALCOR || ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_NAUTILUS || ALPHA_NONAME
  404. default y if ALPHA_JENSEN || ALPHA_MIKASA || ALPHA_SABLE || ALPHA_LYNX || ALPHA_NORITAKE || ALPHA_DP264 || ALPHA_RAWHIDE || ALPHA_EIGER || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_MARVEL
  405. ---help---
  406. There are two different types of booting firmware on Alphas: SRM,
  407. which is command line driven, and ARC, which uses menus and arrow
  408. keys. Details about the Linux/Alpha booting process are contained in
  409. the Linux/Alpha FAQ, accessible on the WWW from
  410. <http://www.alphalinux.org/>.
  411. The usual way to load Linux on an Alpha machine is to use MILO
  412. (a bootloader that lets you pass command line parameters to the
  413. kernel just like lilo does for the x86 architecture) which can be
  414. loaded either from ARC or can be installed directly as a permanent
  415. firmware replacement from floppy (which requires changing a certain
  416. jumper on the motherboard). If you want to do either of these, say N
  417. here. If MILO doesn't work on your system (true for Jensen
  418. motherboards), you can bypass it altogether and boot Linux directly
  419. from an SRM console; say Y here in order to do that. Note that you
  420. won't be able to boot from an IDE disk using SRM.
  421. If unsure, say N.
  422. config EISA
  423. bool
  424. depends on ALPHA_GENERIC || ALPHA_JENSEN || ALPHA_ALCOR || ALPHA_MIKASA || ALPHA_SABLE || ALPHA_LYNX || ALPHA_NORITAKE || ALPHA_RAWHIDE
  425. default y
  426. config ARCH_MAY_HAVE_PC_FDC
  427. def_bool y
  428. config SMP
  429. bool "Symmetric multi-processing support"
  430. depends on ALPHA_SABLE || ALPHA_LYNX || ALPHA_RAWHIDE || ALPHA_DP264 || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_GENERIC || ALPHA_SHARK || ALPHA_MARVEL
  431. select USE_GENERIC_SMP_HELPERS
  432. ---help---
  433. This enables support for systems with more than one CPU. If you have
  434. a system with only one CPU, like most personal computers, say N. If
  435. you have a system with more than one CPU, say Y.
  436. If you say N here, the kernel will run on single and multiprocessor
  437. machines, but will use only one CPU of a multiprocessor machine. If
  438. you say Y here, the kernel will run on many, but not all,
  439. singleprocessor machines. On a singleprocessor machine, the kernel
  440. will run faster if you say N here.
  441. See also the SMP-HOWTO available at
  442. <http://www.tldp.org/docs.html#howto>.
  443. If you don't know what to do here, say N.
  444. config HAVE_DEC_LOCK
  445. bool
  446. depends on SMP
  447. default y
  448. config NR_CPUS
  449. int "Maximum number of CPUs (2-32)"
  450. range 2 32
  451. depends on SMP
  452. default "32" if ALPHA_GENERIC || ALPHA_MARVEL
  453. default "4" if !ALPHA_GENERIC && !ALPHA_MARVEL
  454. help
  455. MARVEL support can handle a maximum of 32 CPUs, all the others
  456. with working support have a maximum of 4 CPUs.
  457. config ARCH_DISCONTIGMEM_ENABLE
  458. bool "Discontiguous Memory Support (EXPERIMENTAL)"
  459. depends on EXPERIMENTAL
  460. help
  461. Say Y to support efficient handling of discontiguous physical memory,
  462. for architectures which are either NUMA (Non-Uniform Memory Access)
  463. or have huge holes in the physical address space for other reasons.
  464. See <file:Documentation/vm/numa> for more.
  465. source "mm/Kconfig"
  466. config NUMA
  467. bool "NUMA Support (EXPERIMENTAL)"
  468. depends on DISCONTIGMEM && BROKEN
  469. help
  470. Say Y to compile the kernel to support NUMA (Non-Uniform Memory
  471. Access). This option is for configuring high-end multiprocessor
  472. server machines. If in doubt, say N.
  473. config NODES_SHIFT
  474. int
  475. default "7"
  476. depends on NEED_MULTIPLE_NODES
  477. # LARGE_VMALLOC is racy, if you *really* need it then fix it first
  478. config ALPHA_LARGE_VMALLOC
  479. bool
  480. ---help---
  481. Process creation and other aspects of virtual memory management can
  482. be streamlined if we restrict the kernel to one PGD for all vmalloc
  483. allocations. This equates to about 8GB.
  484. Under normal circumstances, this is so far and above what is needed
  485. as to be laughable. However, there are certain applications (such
  486. as benchmark-grade in-kernel web serving) that can make use of as
  487. much vmalloc space as is available.
  488. Say N unless you know you need gobs and gobs of vmalloc space.
  489. config VERBOSE_MCHECK
  490. bool "Verbose Machine Checks"
  491. config VERBOSE_MCHECK_ON
  492. int "Verbose Printing Mode (0=off, 1=on, 2=all)"
  493. depends on VERBOSE_MCHECK
  494. default 1
  495. ---help---
  496. This option allows the default printing mode to be set, and then
  497. possibly overridden by a boot command argument.
  498. For example, if one wanted the option of printing verbose
  499. machine checks, but wanted the default to be as if verbose
  500. machine check printing was turned off, then one would choose
  501. the printing mode to be 0. Then, upon reboot, one could add
  502. the boot command line "verbose_mcheck=1" to get the normal
  503. verbose machine check printing, or "verbose_mcheck=2" to get
  504. the maximum information available.
  505. Take the default (1) unless you want more control or more info.
  506. config HZ
  507. int
  508. default 1200 if ALPHA_RAWHIDE
  509. default 1024
  510. source "drivers/pci/Kconfig"
  511. source "drivers/eisa/Kconfig"
  512. source "drivers/pcmcia/Kconfig"
  513. config SRM_ENV
  514. tristate "SRM environment through procfs"
  515. depends on PROC_FS
  516. ---help---
  517. If you enable this option, a subdirectory inside /proc called
  518. /proc/srm_environment will give you access to the all important
  519. SRM environment variables (those which have a name) and also
  520. to all others (by their internal number).
  521. SRM is something like a BIOS for Alpha machines. There are some
  522. other such BIOSes, like AlphaBIOS, which this driver cannot
  523. support (hey, that's not SRM!).
  524. Despite the fact that this driver doesn't work on all Alphas (but
  525. only on those which have SRM as their firmware), it's save to
  526. build it even if your particular machine doesn't know about SRM
  527. (or if you intend to compile a generic kernel). It will simply
  528. not create those subdirectory in /proc (and give you some warning,
  529. of course).
  530. This driver is also available as a module and will be called
  531. srm_env then.
  532. source "fs/Kconfig.binfmt"
  533. endmenu
  534. source "net/Kconfig"
  535. source "drivers/Kconfig"
  536. source "fs/Kconfig"
  537. source "arch/alpha/Kconfig.debug"
  538. # DUMMY_CONSOLE may be defined in drivers/video/console/Kconfig
  539. # but we also need it if VGA_HOSE is set
  540. config DUMMY_CONSOLE
  541. bool
  542. depends on VGA_HOSE
  543. default y
  544. source "security/Kconfig"
  545. source "crypto/Kconfig"
  546. source "lib/Kconfig"