Kconfig 14 KB

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  1. config 64BIT
  2. bool "64-bit kernel" if ARCH = "sparc"
  3. default ARCH = "sparc64"
  4. help
  5. SPARC is a family of RISC microprocessors designed and marketed by
  6. Sun Microsystems, incorporated. They are very widely found in Sun
  7. workstations and clones.
  8. Say yes to build a 64-bit kernel - formerly known as sparc64
  9. Say no to build a 32-bit kernel - formerly known as sparc
  10. config SPARC
  11. bool
  12. default y
  13. select OF
  14. select OF_PROMTREE
  15. select HAVE_IDE
  16. select HAVE_OPROFILE
  17. select HAVE_ARCH_KGDB if !SMP || SPARC64
  18. select HAVE_ARCH_TRACEHOOK
  19. select SYSCTL_EXCEPTION_TRACE
  20. select ARCH_WANT_OPTIONAL_GPIOLIB
  21. select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
  22. select RTC_CLASS
  23. select RTC_DRV_M48T59
  24. select HAVE_DMA_ATTRS
  25. select HAVE_DMA_API_DEBUG
  26. select HAVE_ARCH_JUMP_LABEL
  27. select HAVE_GENERIC_HARDIRQS
  28. select GENERIC_IRQ_SHOW
  29. select ARCH_WANT_IPC_PARSE_VERSION
  30. select USE_GENERIC_SMP_HELPERS if SMP
  31. select GENERIC_PCI_IOMAP
  32. select HAVE_NMI_WATCHDOG if SPARC64
  33. select HAVE_BPF_JIT
  34. select HAVE_DEBUG_BUGVERBOSE
  35. select GENERIC_SMP_IDLE_THREAD
  36. select GENERIC_CMOS_UPDATE
  37. select GENERIC_CLOCKEVENTS
  38. select GENERIC_IDLE_LOOP
  39. select GENERIC_STRNCPY_FROM_USER
  40. select GENERIC_STRNLEN_USER
  41. select MODULES_USE_ELF_RELA
  42. select ODD_RT_SIGACTION
  43. select OLD_SIGSUSPEND
  44. config SPARC32
  45. def_bool !64BIT
  46. select GENERIC_ATOMIC64
  47. select CLZ_TAB
  48. select HAVE_UID16
  49. select OLD_SIGACTION
  50. config SPARC64
  51. def_bool 64BIT
  52. select ARCH_SUPPORTS_MSI
  53. select HAVE_FUNCTION_TRACER
  54. select HAVE_FUNCTION_GRAPH_TRACER
  55. select HAVE_FUNCTION_GRAPH_FP_TEST
  56. select HAVE_FUNCTION_TRACE_MCOUNT_TEST
  57. select HAVE_KRETPROBES
  58. select HAVE_KPROBES
  59. select HAVE_RCU_TABLE_FREE if SMP
  60. select HAVE_MEMBLOCK
  61. select HAVE_MEMBLOCK_NODE_MAP
  62. select HAVE_SYSCALL_WRAPPERS
  63. select HAVE_ARCH_TRANSPARENT_HUGEPAGE
  64. select HAVE_DYNAMIC_FTRACE
  65. select HAVE_FTRACE_MCOUNT_RECORD
  66. select HAVE_SYSCALL_TRACEPOINTS
  67. select HAVE_DEBUG_KMEMLEAK
  68. select RTC_DRV_CMOS
  69. select RTC_DRV_BQ4802
  70. select RTC_DRV_SUN4V
  71. select RTC_DRV_STARFIRE
  72. select HAVE_PERF_EVENTS
  73. select PERF_USE_VMALLOC
  74. select IRQ_PREFLOW_FASTEOI
  75. select ARCH_HAVE_NMI_SAFE_CMPXCHG
  76. select HAVE_C_RECORDMCOUNT
  77. select NO_BOOTMEM
  78. config ARCH_DEFCONFIG
  79. string
  80. default "arch/sparc/configs/sparc32_defconfig" if SPARC32
  81. default "arch/sparc/configs/sparc64_defconfig" if SPARC64
  82. config IOMMU_HELPER
  83. bool
  84. default y if SPARC64
  85. config STACKTRACE_SUPPORT
  86. bool
  87. default y if SPARC64
  88. config LOCKDEP_SUPPORT
  89. bool
  90. default y if SPARC64
  91. config HAVE_LATENCYTOP_SUPPORT
  92. bool
  93. default y if SPARC64
  94. config AUDIT_ARCH
  95. bool
  96. default y
  97. config HAVE_SETUP_PER_CPU_AREA
  98. def_bool y if SPARC64
  99. config NEED_PER_CPU_EMBED_FIRST_CHUNK
  100. def_bool y if SPARC64
  101. config NEED_PER_CPU_PAGE_FIRST_CHUNK
  102. def_bool y if SPARC64
  103. config MMU
  104. bool
  105. default y
  106. config HIGHMEM
  107. bool
  108. default y if SPARC32
  109. config ZONE_DMA
  110. bool
  111. default y if SPARC32
  112. config NEED_DMA_MAP_STATE
  113. def_bool y
  114. config NEED_SG_DMA_LENGTH
  115. def_bool y
  116. config GENERIC_ISA_DMA
  117. bool
  118. default y if SPARC32
  119. config GENERIC_GPIO
  120. bool
  121. help
  122. Generic GPIO API support
  123. config ARCH_SUPPORTS_DEBUG_PAGEALLOC
  124. def_bool y if SPARC64
  125. source "init/Kconfig"
  126. source "kernel/Kconfig.freezer"
  127. menu "Processor type and features"
  128. config SMP
  129. bool "Symmetric multi-processing support"
  130. ---help---
  131. This enables support for systems with more than one CPU. If you have
  132. a system with only one CPU, say N. If you have a system with more
  133. than one CPU, say Y.
  134. If you say N here, the kernel will run on single and multiprocessor
  135. machines, but will use only one CPU of a multiprocessor machine. If
  136. you say Y here, the kernel will run on many, but not all,
  137. singleprocessor machines. On a singleprocessor machine, the kernel
  138. will run faster if you say N here.
  139. People using multiprocessor machines who say Y here should also say
  140. Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
  141. Management" code will be disabled if you say Y here.
  142. See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
  143. available at <http://www.tldp.org/docs.html#howto>.
  144. If you don't know what to do here, say N.
  145. config NR_CPUS
  146. int "Maximum number of CPUs"
  147. depends on SMP
  148. range 2 32 if SPARC32
  149. range 2 1024 if SPARC64
  150. default 32 if SPARC32
  151. default 64 if SPARC64
  152. source kernel/Kconfig.hz
  153. config RWSEM_GENERIC_SPINLOCK
  154. bool
  155. default y if SPARC32
  156. config RWSEM_XCHGADD_ALGORITHM
  157. bool
  158. default y if SPARC64
  159. config GENERIC_HWEIGHT
  160. bool
  161. default y
  162. config GENERIC_CALIBRATE_DELAY
  163. bool
  164. default y
  165. config ARCH_MAY_HAVE_PC_FDC
  166. bool
  167. default y
  168. config EMULATED_CMPXCHG
  169. bool
  170. default y if SPARC32
  171. help
  172. Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
  173. is emulated, and therefore it is not completely atomic.
  174. # Makefile helpers
  175. config SPARC32_SMP
  176. bool
  177. default y
  178. depends on SPARC32 && SMP
  179. config SPARC64_SMP
  180. bool
  181. default y
  182. depends on SPARC64 && SMP
  183. config EARLYFB
  184. bool "Support for early boot text console"
  185. default y
  186. depends on SPARC64
  187. help
  188. Say Y here to enable a faster early framebuffer boot console.
  189. config SECCOMP
  190. bool "Enable seccomp to safely compute untrusted bytecode"
  191. depends on SPARC64 && PROC_FS
  192. default y
  193. help
  194. This kernel feature is useful for number crunching applications
  195. that may need to compute untrusted bytecode during their
  196. execution. By using pipes or other transports made available to
  197. the process as file descriptors supporting the read/write
  198. syscalls, it's possible to isolate those applications in
  199. their own address space using seccomp. Once seccomp is
  200. enabled via /proc/<pid>/seccomp, it cannot be disabled
  201. and the task is only allowed to execute a few safe syscalls
  202. defined by each seccomp mode.
  203. If unsure, say Y. Only embedded should say N here.
  204. config HOTPLUG_CPU
  205. bool "Support for hot-pluggable CPUs"
  206. depends on SPARC64 && SMP
  207. select HOTPLUG
  208. help
  209. Say Y here to experiment with turning CPUs off and on. CPUs
  210. can be controlled through /sys/devices/system/cpu/cpu#.
  211. Say N if you want to disable CPU hotplug.
  212. if SPARC64
  213. source "drivers/cpufreq/Kconfig"
  214. config US3_FREQ
  215. tristate "UltraSPARC-III CPU Frequency driver"
  216. depends on CPU_FREQ
  217. select CPU_FREQ_TABLE
  218. help
  219. This adds the CPUFreq driver for UltraSPARC-III processors.
  220. For details, take a look at <file:Documentation/cpu-freq>.
  221. If in doubt, say N.
  222. config US2E_FREQ
  223. tristate "UltraSPARC-IIe CPU Frequency driver"
  224. depends on CPU_FREQ
  225. select CPU_FREQ_TABLE
  226. help
  227. This adds the CPUFreq driver for UltraSPARC-IIe processors.
  228. For details, take a look at <file:Documentation/cpu-freq>.
  229. If in doubt, say N.
  230. endif
  231. config US3_MC
  232. tristate "UltraSPARC-III Memory Controller driver"
  233. depends on SPARC64
  234. default y
  235. help
  236. This adds a driver for the UltraSPARC-III memory controller.
  237. Loading this driver allows exact mnemonic strings to be
  238. printed in the event of a memory error, so that the faulty DIMM
  239. on the motherboard can be matched to the error.
  240. If in doubt, say Y, as this information can be very useful.
  241. # Global things across all Sun machines.
  242. config GENERIC_LOCKBREAK
  243. bool
  244. default y
  245. depends on SPARC64 && SMP && PREEMPT
  246. config NUMA
  247. bool "NUMA support"
  248. depends on SPARC64 && SMP
  249. config NODES_SHIFT
  250. int
  251. default "4"
  252. depends on NEED_MULTIPLE_NODES
  253. # Some NUMA nodes have memory ranges that span
  254. # other nodes. Even though a pfn is valid and
  255. # between a node's start and end pfns, it may not
  256. # reside on that node. See memmap_init_zone()
  257. # for details.
  258. config NODES_SPAN_OTHER_NODES
  259. def_bool y
  260. depends on NEED_MULTIPLE_NODES
  261. config ARCH_SELECT_MEMORY_MODEL
  262. def_bool y if SPARC64
  263. config ARCH_SPARSEMEM_ENABLE
  264. def_bool y if SPARC64
  265. select SPARSEMEM_VMEMMAP_ENABLE
  266. config ARCH_SPARSEMEM_DEFAULT
  267. def_bool y if SPARC64
  268. source "mm/Kconfig"
  269. config SCHED_SMT
  270. bool "SMT (Hyperthreading) scheduler support"
  271. depends on SPARC64 && SMP
  272. default y
  273. help
  274. SMT scheduler support improves the CPU scheduler's decision making
  275. when dealing with SPARC cpus at a cost of slightly increased overhead
  276. in some places. If unsure say N here.
  277. config SCHED_MC
  278. bool "Multi-core scheduler support"
  279. depends on SPARC64 && SMP
  280. default y
  281. help
  282. Multi-core scheduler support improves the CPU scheduler's decision
  283. making when dealing with multi-core CPU chips at a cost of slightly
  284. increased overhead in some places. If unsure say N here.
  285. source "kernel/Kconfig.preempt"
  286. config CMDLINE_BOOL
  287. bool "Default bootloader kernel arguments"
  288. depends on SPARC64
  289. config CMDLINE
  290. string "Initial kernel command string"
  291. depends on CMDLINE_BOOL
  292. default "console=ttyS0,9600 root=/dev/sda1"
  293. help
  294. Say Y here if you want to be able to pass default arguments to
  295. the kernel. This will be overridden by the bootloader, if you
  296. use one (such as SILO). This is most useful if you want to boot
  297. a kernel from TFTP, and want default options to be available
  298. with having them passed on the command line.
  299. NOTE: This option WILL override the PROM bootargs setting!
  300. config SUN_PM
  301. bool
  302. default y if SPARC32
  303. help
  304. Enable power management and CPU standby features on supported
  305. SPARC platforms.
  306. config SPARC_LED
  307. tristate "Sun4m LED driver"
  308. depends on SPARC32
  309. help
  310. This driver toggles the front-panel LED on sun4m systems
  311. in a user-specifiable manner. Its state can be probed
  312. by reading /proc/led and its blinking mode can be changed
  313. via writes to /proc/led
  314. config SERIAL_CONSOLE
  315. bool
  316. depends on SPARC32
  317. default y
  318. ---help---
  319. If you say Y here, it will be possible to use a serial port as the
  320. system console (the system console is the device which receives all
  321. kernel messages and warnings and which allows logins in single user
  322. mode). This could be useful if some terminal or printer is connected
  323. to that serial port.
  324. Even if you say Y here, the currently visible virtual console
  325. (/dev/tty0) will still be used as the system console by default, but
  326. you can alter that using a kernel command line option such as
  327. "console=ttyS1". (Try "man bootparam" or see the documentation of
  328. your boot loader (silo) about how to pass options to the kernel at
  329. boot time.)
  330. If you don't have a graphics card installed and you say Y here, the
  331. kernel will automatically use the first serial line, /dev/ttyS0, as
  332. system console.
  333. If unsure, say N.
  334. config SPARC_LEON
  335. bool "Sparc Leon processor family"
  336. depends on SPARC32
  337. ---help---
  338. If you say Y here if you are running on a SPARC-LEON processor.
  339. The LEON processor is a synthesizable VHDL model of the
  340. SPARC-v8 standard. LEON is part of the GRLIB collection of
  341. IP cores that are distributed under GPL. GRLIB can be downloaded
  342. from www.gaisler.com. You can download a sparc-linux cross-compilation
  343. toolchain at www.gaisler.com.
  344. if SPARC_LEON
  345. menu "U-Boot options"
  346. config UBOOT_LOAD_ADDR
  347. hex "uImage Load Address"
  348. default 0x40004000
  349. ---help---
  350. U-Boot kernel load address, the address in physical address space
  351. where u-boot will place the Linux kernel before booting it.
  352. This address is normally the base address of main memory + 0x4000.
  353. config UBOOT_FLASH_ADDR
  354. hex "uImage.o Load Address"
  355. default 0x00080000
  356. ---help---
  357. Optional setting only affecting the uImage.o ELF-image used to
  358. download the uImage file to the target using a ELF-loader other than
  359. U-Boot. It may for example be used to download an uImage to FLASH with
  360. the GRMON utility before even starting u-boot.
  361. config UBOOT_ENTRY_ADDR
  362. hex "uImage Entry Address"
  363. default 0xf0004000
  364. ---help---
  365. Do not change this unless you know what you're doing. This is
  366. hardcoded by the SPARC32 and LEON port.
  367. This is the virtual address u-boot jumps to when booting the Linux
  368. Kernel.
  369. endmenu
  370. endif
  371. endmenu
  372. menu "Bus options (PCI etc.)"
  373. config SBUS
  374. bool
  375. default y
  376. config SBUSCHAR
  377. bool
  378. default y
  379. config SUN_LDOMS
  380. bool "Sun Logical Domains support"
  381. depends on SPARC64
  382. help
  383. Say Y here is you want to support virtual devices via
  384. Logical Domains.
  385. config PCI
  386. bool "Support for PCI and PS/2 keyboard/mouse"
  387. help
  388. Find out whether your system includes a PCI bus. PCI is the name of
  389. a bus system, i.e. the way the CPU talks to the other stuff inside
  390. your box. If you say Y here, the kernel will include drivers and
  391. infrastructure code to support PCI bus devices.
  392. CONFIG_PCI is needed for all JavaStation's (including MrCoffee),
  393. CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC.
  394. All of these platforms are extremely obscure, so say N if unsure.
  395. config PCI_DOMAINS
  396. def_bool PCI if SPARC64
  397. config PCI_SYSCALL
  398. def_bool PCI
  399. config PCIC_PCI
  400. bool
  401. depends on PCI && SPARC32 && !SPARC_LEON
  402. default y
  403. config LEON_PCI
  404. bool
  405. depends on PCI && SPARC_LEON
  406. default y
  407. config GRPCI2
  408. bool "GRPCI2 Host Bridge Support"
  409. depends on LEON_PCI
  410. default y
  411. help
  412. Say Y here to include the GRPCI2 Host Bridge Driver.
  413. source "drivers/pci/Kconfig"
  414. source "drivers/pcmcia/Kconfig"
  415. config SUN_OPENPROMFS
  416. tristate "Openprom tree appears in /proc/openprom"
  417. help
  418. If you say Y, the OpenPROM device tree will be available as a
  419. virtual file system, which you can mount to /proc/openprom by "mount
  420. -t openpromfs none /proc/openprom".
  421. To compile the /proc/openprom support as a module, choose M here: the
  422. module will be called openpromfs.
  423. Only choose N if you know in advance that you will not need to modify
  424. OpenPROM settings on the running system.
  425. # Makefile helper
  426. config SPARC64_PCI
  427. bool
  428. default y
  429. depends on SPARC64 && PCI
  430. endmenu
  431. menu "Executable file formats"
  432. source "fs/Kconfig.binfmt"
  433. config COMPAT
  434. bool
  435. depends on SPARC64
  436. default y
  437. select COMPAT_BINFMT_ELF
  438. select HAVE_UID16
  439. select ARCH_WANT_OLD_COMPAT_IPC
  440. select COMPAT_OLD_SIGACTION
  441. config SYSVIPC_COMPAT
  442. bool
  443. depends on COMPAT && SYSVIPC
  444. default y
  445. config KEYS_COMPAT
  446. def_bool y if COMPAT && KEYS
  447. endmenu
  448. source "net/Kconfig"
  449. source "drivers/Kconfig"
  450. source "drivers/sbus/char/Kconfig"
  451. source "fs/Kconfig"
  452. source "arch/sparc/Kconfig.debug"
  453. source "security/Kconfig"
  454. source "crypto/Kconfig"
  455. source "lib/Kconfig"