Kconfig 17 KB

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  1. source "init/Kconfig"
  2. source "kernel/Kconfig.freezer"
  3. menu "Processor type and features"
  4. config IA64
  5. bool
  6. select PCI if (!IA64_HP_SIM)
  7. select ACPI if (!IA64_HP_SIM)
  8. select PM if (!IA64_HP_SIM)
  9. select ARCH_SUPPORTS_MSI
  10. select HAVE_UNSTABLE_SCHED_CLOCK
  11. select HAVE_IDE
  12. select HAVE_OPROFILE
  13. select HAVE_KPROBES
  14. select HAVE_KRETPROBES
  15. select HAVE_FTRACE_MCOUNT_RECORD
  16. select HAVE_DYNAMIC_FTRACE if (!ITANIUM)
  17. select HAVE_FUNCTION_TRACER
  18. select HAVE_DMA_ATTRS
  19. select HAVE_KVM
  20. select HAVE_ARCH_TRACEHOOK
  21. select HAVE_DMA_API_DEBUG
  22. select HAVE_GENERIC_HARDIRQS
  23. select GENERIC_IRQ_PROBE
  24. select GENERIC_PENDING_IRQ if SMP
  25. select IRQ_PER_CPU
  26. select GENERIC_IRQ_SHOW
  27. default y
  28. help
  29. The Itanium Processor Family is Intel's 64-bit successor to
  30. the 32-bit X86 line. The IA-64 Linux project has a home
  31. page at <http://www.linuxia64.org/> and a mailing list at
  32. <linux-ia64@vger.kernel.org>.
  33. config 64BIT
  34. bool
  35. select ATA_NONSTANDARD if ATA
  36. default y
  37. config ZONE_DMA
  38. def_bool y
  39. depends on !IA64_SGI_SN2
  40. config QUICKLIST
  41. bool
  42. default y
  43. config MMU
  44. bool
  45. default y
  46. config ARCH_DMA_ADDR_T_64BIT
  47. def_bool y
  48. config NEED_DMA_MAP_STATE
  49. def_bool y
  50. config NEED_SG_DMA_LENGTH
  51. def_bool y
  52. config SWIOTLB
  53. bool
  54. config STACKTRACE_SUPPORT
  55. def_bool y
  56. config GENERIC_LOCKBREAK
  57. def_bool n
  58. config RWSEM_XCHGADD_ALGORITHM
  59. bool
  60. default y
  61. config HUGETLB_PAGE_SIZE_VARIABLE
  62. bool
  63. depends on HUGETLB_PAGE
  64. default y
  65. config GENERIC_CALIBRATE_DELAY
  66. bool
  67. default y
  68. config GENERIC_TIME_VSYSCALL
  69. bool
  70. default y
  71. config HAVE_SETUP_PER_CPU_AREA
  72. def_bool y
  73. config DMI
  74. bool
  75. default y
  76. config EFI
  77. bool
  78. default y
  79. config GENERIC_IOMAP
  80. bool
  81. default y
  82. config SCHED_OMIT_FRAME_POINTER
  83. bool
  84. default y
  85. config IA64_UNCACHED_ALLOCATOR
  86. bool
  87. select GENERIC_ALLOCATOR
  88. config ARCH_USES_PG_UNCACHED
  89. def_bool y
  90. depends on IA64_UNCACHED_ALLOCATOR
  91. config AUDIT_ARCH
  92. bool
  93. default y
  94. menuconfig PARAVIRT_GUEST
  95. bool "Paravirtualized guest support"
  96. help
  97. Say Y here to get to see options related to running Linux under
  98. various hypervisors. This option alone does not add any kernel code.
  99. If you say N, all options in this submenu will be skipped and disabled.
  100. if PARAVIRT_GUEST
  101. config PARAVIRT
  102. bool "Enable paravirtualization code"
  103. depends on PARAVIRT_GUEST
  104. default y
  105. bool
  106. default y
  107. help
  108. This changes the kernel so it can modify itself when it is run
  109. under a hypervisor, potentially improving performance significantly
  110. over full virtualization. However, when run without a hypervisor
  111. the kernel is theoretically slower and slightly larger.
  112. source "arch/ia64/xen/Kconfig"
  113. endif
  114. choice
  115. prompt "System type"
  116. default IA64_GENERIC
  117. config IA64_GENERIC
  118. bool "generic"
  119. select NUMA
  120. select ACPI_NUMA
  121. select SWIOTLB
  122. select PCI_MSI
  123. select DMAR
  124. help
  125. This selects the system type of your hardware. A "generic" kernel
  126. will run on any supported IA-64 system. However, if you configure
  127. a kernel for your specific system, it will be faster and smaller.
  128. generic For any supported IA-64 system
  129. DIG-compliant For DIG ("Developer's Interface Guide") compliant systems
  130. DIG+Intel+IOMMU For DIG systems with Intel IOMMU
  131. HP-zx1/sx1000 For HP systems
  132. HP-zx1/sx1000+swiotlb For HP systems with (broken) DMA-constrained devices.
  133. SGI-SN2 For SGI Altix systems
  134. SGI-UV For SGI UV systems
  135. Ski-simulator For the HP simulator <http://www.hpl.hp.com/research/linux/ski/>
  136. Xen-domU For xen domU system
  137. If you don't know what to do, choose "generic".
  138. config IA64_DIG
  139. bool "DIG-compliant"
  140. select SWIOTLB
  141. config IA64_DIG_VTD
  142. bool "DIG+Intel+IOMMU"
  143. select DMAR
  144. select PCI_MSI
  145. config IA64_HP_ZX1
  146. bool "HP-zx1/sx1000"
  147. help
  148. Build a kernel that runs on HP zx1 and sx1000 systems. This adds
  149. support for the HP I/O MMU.
  150. config IA64_HP_ZX1_SWIOTLB
  151. bool "HP-zx1/sx1000 with software I/O TLB"
  152. select SWIOTLB
  153. help
  154. Build a kernel that runs on HP zx1 and sx1000 systems even when they
  155. have broken PCI devices which cannot DMA to full 32 bits. Apart
  156. from support for the HP I/O MMU, this includes support for the software
  157. I/O TLB, which allows supporting the broken devices at the expense of
  158. wasting some kernel memory (about 2MB by default).
  159. config IA64_SGI_SN2
  160. bool "SGI-SN2"
  161. select NUMA
  162. select ACPI_NUMA
  163. help
  164. Selecting this option will optimize the kernel for use on sn2 based
  165. systems, but the resulting kernel binary will not run on other
  166. types of ia64 systems. If you have an SGI Altix system, it's safe
  167. to select this option. If in doubt, select ia64 generic support
  168. instead.
  169. config IA64_SGI_UV
  170. bool "SGI-UV"
  171. select NUMA
  172. select ACPI_NUMA
  173. select SWIOTLB
  174. help
  175. Selecting this option will optimize the kernel for use on UV based
  176. systems, but the resulting kernel binary will not run on other
  177. types of ia64 systems. If you have an SGI UV system, it's safe
  178. to select this option. If in doubt, select ia64 generic support
  179. instead.
  180. config IA64_HP_SIM
  181. bool "Ski-simulator"
  182. select SWIOTLB
  183. config IA64_XEN_GUEST
  184. bool "Xen guest"
  185. select SWIOTLB
  186. depends on XEN
  187. help
  188. Build a kernel that runs on Xen guest domain. At this moment only
  189. 16KB page size in supported.
  190. endchoice
  191. choice
  192. prompt "Processor type"
  193. default ITANIUM
  194. config ITANIUM
  195. bool "Itanium"
  196. help
  197. Select your IA-64 processor type. The default is Itanium.
  198. This choice is safe for all IA-64 systems, but may not perform
  199. optimally on systems with, say, Itanium 2 or newer processors.
  200. config MCKINLEY
  201. bool "Itanium 2"
  202. help
  203. Select this to configure for an Itanium 2 (McKinley) processor.
  204. endchoice
  205. choice
  206. prompt "Kernel page size"
  207. default IA64_PAGE_SIZE_16KB
  208. config IA64_PAGE_SIZE_4KB
  209. bool "4KB"
  210. help
  211. This lets you select the page size of the kernel. For best IA-64
  212. performance, a page size of 8KB or 16KB is recommended. For best
  213. IA-32 compatibility, a page size of 4KB should be selected (the vast
  214. majority of IA-32 binaries work perfectly fine with a larger page
  215. size). For Itanium 2 or newer systems, a page size of 64KB can also
  216. be selected.
  217. 4KB For best IA-32 compatibility
  218. 8KB For best IA-64 performance
  219. 16KB For best IA-64 performance
  220. 64KB Requires Itanium 2 or newer processor.
  221. If you don't know what to do, choose 16KB.
  222. config IA64_PAGE_SIZE_8KB
  223. bool "8KB"
  224. config IA64_PAGE_SIZE_16KB
  225. bool "16KB"
  226. config IA64_PAGE_SIZE_64KB
  227. depends on !ITANIUM
  228. bool "64KB"
  229. endchoice
  230. choice
  231. prompt "Page Table Levels"
  232. default PGTABLE_3
  233. config PGTABLE_3
  234. bool "3 Levels"
  235. config PGTABLE_4
  236. depends on !IA64_PAGE_SIZE_64KB
  237. bool "4 Levels"
  238. endchoice
  239. if IA64_HP_SIM
  240. config HZ
  241. default 32
  242. endif
  243. if !IA64_HP_SIM
  244. source kernel/Kconfig.hz
  245. endif
  246. config IA64_BRL_EMU
  247. bool
  248. depends on ITANIUM
  249. default y
  250. # align cache-sensitive data to 128 bytes
  251. config IA64_L1_CACHE_SHIFT
  252. int
  253. default "7" if MCKINLEY
  254. default "6" if ITANIUM
  255. config IA64_CYCLONE
  256. bool "Cyclone (EXA) Time Source support"
  257. help
  258. Say Y here to enable support for IBM EXA Cyclone time source.
  259. If you're unsure, answer N.
  260. config IOSAPIC
  261. bool
  262. depends on !IA64_HP_SIM
  263. default y
  264. config FORCE_MAX_ZONEORDER
  265. int "MAX_ORDER (11 - 17)" if !HUGETLB_PAGE
  266. range 11 17 if !HUGETLB_PAGE
  267. default "17" if HUGETLB_PAGE
  268. default "11"
  269. config VIRT_CPU_ACCOUNTING
  270. bool "Deterministic task and CPU time accounting"
  271. default n
  272. help
  273. Select this option to enable more accurate task and CPU time
  274. accounting. This is done by reading a CPU counter on each
  275. kernel entry and exit and on transitions within the kernel
  276. between system, softirq and hardirq state, so there is a
  277. small performance impact.
  278. If in doubt, say N here.
  279. config SMP
  280. bool "Symmetric multi-processing support"
  281. select USE_GENERIC_SMP_HELPERS
  282. help
  283. This enables support for systems with more than one CPU. If you have
  284. a system with only one CPU, say N. If you have a system with more
  285. than one CPU, say Y.
  286. If you say N here, the kernel will run on single and multiprocessor
  287. systems, but will use only one CPU of a multiprocessor system. If
  288. you say Y here, the kernel will run on many, but not all,
  289. single processor systems. On a single processor system, the kernel
  290. will run faster if you say N here.
  291. See also the SMP-HOWTO available at
  292. <http://www.tldp.org/docs.html#howto>.
  293. If you don't know what to do here, say N.
  294. config NR_CPUS
  295. int "Maximum number of CPUs (2-4096)"
  296. range 2 4096
  297. depends on SMP
  298. default "4096"
  299. help
  300. You should set this to the number of CPUs in your system, but
  301. keep in mind that a kernel compiled for, e.g., 2 CPUs will boot but
  302. only use 2 CPUs on a >2 CPU system. Setting this to a value larger
  303. than 64 will cause the use of a CPU mask array, causing a small
  304. performance hit.
  305. config HOTPLUG_CPU
  306. bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
  307. depends on SMP && EXPERIMENTAL
  308. select HOTPLUG
  309. default n
  310. ---help---
  311. Say Y here to experiment with turning CPUs off and on. CPUs
  312. can be controlled through /sys/devices/system/cpu/cpu#.
  313. Say N if you want to disable CPU hotplug.
  314. config ARCH_ENABLE_MEMORY_HOTPLUG
  315. def_bool y
  316. config ARCH_ENABLE_MEMORY_HOTREMOVE
  317. def_bool y
  318. config SCHED_SMT
  319. bool "SMT scheduler support"
  320. depends on SMP
  321. help
  322. Improves the CPU scheduler's decision making when dealing with
  323. Intel IA64 chips with MultiThreading at a cost of slightly increased
  324. overhead in some places. If unsure say N here.
  325. config PERMIT_BSP_REMOVE
  326. bool "Support removal of Bootstrap Processor"
  327. depends on HOTPLUG_CPU
  328. default n
  329. ---help---
  330. Say Y here if your platform SAL will support removal of BSP with HOTPLUG_CPU
  331. support.
  332. config FORCE_CPEI_RETARGET
  333. bool "Force assumption that CPEI can be re-targeted"
  334. depends on PERMIT_BSP_REMOVE
  335. default n
  336. ---help---
  337. Say Y if you need to force the assumption that CPEI can be re-targeted to
  338. any cpu in the system. This hint is available via ACPI 3.0 specifications.
  339. Tiger4 systems are capable of re-directing CPEI to any CPU other than BSP.
  340. This option it useful to enable this feature on older BIOS's as well.
  341. You can also enable this by using boot command line option force_cpei=1.
  342. source "kernel/Kconfig.preempt"
  343. source "mm/Kconfig"
  344. config ARCH_SELECT_MEMORY_MODEL
  345. def_bool y
  346. config ARCH_DISCONTIGMEM_ENABLE
  347. def_bool y
  348. help
  349. Say Y to support efficient handling of discontiguous physical memory,
  350. for architectures which are either NUMA (Non-Uniform Memory Access)
  351. or have huge holes in the physical address space for other reasons.
  352. See <file:Documentation/vm/numa> for more.
  353. config ARCH_FLATMEM_ENABLE
  354. def_bool y
  355. config ARCH_SPARSEMEM_ENABLE
  356. def_bool y
  357. depends on ARCH_DISCONTIGMEM_ENABLE
  358. select SPARSEMEM_VMEMMAP_ENABLE
  359. config ARCH_DISCONTIGMEM_DEFAULT
  360. def_bool y if (IA64_SGI_SN2 || IA64_GENERIC || IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB)
  361. depends on ARCH_DISCONTIGMEM_ENABLE
  362. config NUMA
  363. bool "NUMA support"
  364. depends on !IA64_HP_SIM && !FLATMEM
  365. default y if IA64_SGI_SN2
  366. select ACPI_NUMA if ACPI
  367. help
  368. Say Y to compile the kernel to support NUMA (Non-Uniform Memory
  369. Access). This option is for configuring high-end multiprocessor
  370. server systems. If in doubt, say N.
  371. config NODES_SHIFT
  372. int "Max num nodes shift(3-10)"
  373. range 3 10
  374. default "10"
  375. depends on NEED_MULTIPLE_NODES
  376. help
  377. This option specifies the maximum number of nodes in your SSI system.
  378. MAX_NUMNODES will be 2^(This value).
  379. If in doubt, use the default.
  380. config ARCH_POPULATES_NODE_MAP
  381. def_bool y
  382. # VIRTUAL_MEM_MAP and FLAT_NODE_MEM_MAP are functionally equivalent.
  383. # VIRTUAL_MEM_MAP has been retained for historical reasons.
  384. config VIRTUAL_MEM_MAP
  385. bool "Virtual mem map"
  386. depends on !SPARSEMEM
  387. default y if !IA64_HP_SIM
  388. help
  389. Say Y to compile the kernel with support for a virtual mem map.
  390. This code also only takes effect if a memory hole of greater than
  391. 1 Gb is found during boot. You must turn this option on if you
  392. require the DISCONTIGMEM option for your machine. If you are
  393. unsure, say Y.
  394. config HOLES_IN_ZONE
  395. bool
  396. default y if VIRTUAL_MEM_MAP
  397. config HAVE_ARCH_EARLY_PFN_TO_NID
  398. def_bool NUMA && SPARSEMEM
  399. config HAVE_ARCH_NODEDATA_EXTENSION
  400. def_bool y
  401. depends on NUMA
  402. config USE_PERCPU_NUMA_NODE_ID
  403. def_bool y
  404. depends on NUMA
  405. config HAVE_MEMORYLESS_NODES
  406. def_bool NUMA
  407. config ARCH_PROC_KCORE_TEXT
  408. def_bool y
  409. depends on PROC_KCORE
  410. config IA64_MCA_RECOVERY
  411. tristate "MCA recovery from errors other than TLB."
  412. config PERFMON
  413. bool "Performance monitor support"
  414. help
  415. Selects whether support for the IA-64 performance monitor hardware
  416. is included in the kernel. This makes some kernel data-structures a
  417. little bigger and slows down execution a bit, but it is generally
  418. a good idea to turn this on. If you're unsure, say Y.
  419. config IA64_PALINFO
  420. tristate "/proc/pal support"
  421. help
  422. If you say Y here, you are able to get PAL (Processor Abstraction
  423. Layer) information in /proc/pal. This contains useful information
  424. about the processors in your systems, such as cache and TLB sizes
  425. and the PAL firmware version in use.
  426. To use this option, you have to ensure that the "/proc file system
  427. support" (CONFIG_PROC_FS) is enabled, too.
  428. config IA64_MC_ERR_INJECT
  429. tristate "MC error injection support"
  430. help
  431. Adds support for MC error injection. If enabled, the kernel
  432. will provide a sysfs interface for user applications to
  433. call MC error injection PAL procedures to inject various errors.
  434. This is a useful tool for MCA testing.
  435. If you're unsure, do not select this option.
  436. config SGI_SN
  437. def_bool y if (IA64_SGI_SN2 || IA64_GENERIC)
  438. config IA64_ESI
  439. bool "ESI (Extensible SAL Interface) support"
  440. help
  441. If you say Y here, support is built into the kernel to
  442. make ESI calls. ESI calls are used to support vendor-specific
  443. firmware extensions, such as the ability to inject memory-errors
  444. for test-purposes. If you're unsure, say N.
  445. config IA64_HP_AML_NFW
  446. bool "Support ACPI AML calls to native firmware"
  447. help
  448. This driver installs a global ACPI Operation Region handler for
  449. region 0xA1. AML methods can use this OpRegion to call arbitrary
  450. native firmware functions. The driver installs the OpRegion
  451. handler if there is an HPQ5001 device or if the user supplies
  452. the "force" module parameter, e.g., with the "aml_nfw.force"
  453. kernel command line option.
  454. source "drivers/sn/Kconfig"
  455. config KEXEC
  456. bool "kexec system call (EXPERIMENTAL)"
  457. depends on EXPERIMENTAL && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
  458. help
  459. kexec is a system call that implements the ability to shutdown your
  460. current kernel, and to start another kernel. It is like a reboot
  461. but it is independent of the system firmware. And like a reboot
  462. you can start any kernel with it, not just Linux.
  463. The name comes from the similarity to the exec system call.
  464. It is an ongoing process to be certain the hardware in a machine
  465. is properly shutdown, so do not be surprised if this code does not
  466. initially work for you. It may help to enable device hotplugging
  467. support. As of this writing the exact hardware interface is
  468. strongly in flux, so no good recommendation can be made.
  469. config CRASH_DUMP
  470. bool "kernel crash dumps"
  471. depends on IA64_MCA_RECOVERY && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
  472. help
  473. Generate crash dump after being started by kexec.
  474. source "drivers/firmware/Kconfig"
  475. source "fs/Kconfig.binfmt"
  476. endmenu
  477. menu "Power management and ACPI options"
  478. source "kernel/power/Kconfig"
  479. source "drivers/acpi/Kconfig"
  480. if PM
  481. source "arch/ia64/kernel/cpufreq/Kconfig"
  482. endif
  483. endmenu
  484. if !IA64_HP_SIM
  485. menu "Bus options (PCI, PCMCIA)"
  486. config PCI
  487. bool "PCI support"
  488. help
  489. Real IA-64 machines all have PCI/PCI-X/PCI Express busses. Say Y
  490. here unless you are using a simulator without PCI support.
  491. config PCI_DOMAINS
  492. def_bool PCI
  493. config PCI_SYSCALL
  494. def_bool PCI
  495. source "drivers/pci/pcie/Kconfig"
  496. source "drivers/pci/Kconfig"
  497. source "drivers/pci/hotplug/Kconfig"
  498. source "drivers/pcmcia/Kconfig"
  499. config DMAR
  500. bool "Support for DMA Remapping Devices (EXPERIMENTAL)"
  501. depends on IA64_GENERIC && ACPI && EXPERIMENTAL
  502. help
  503. DMA remapping (DMAR) devices support enables independent address
  504. translations for Direct Memory Access (DMA) from devices.
  505. These DMA remapping devices are reported via ACPI tables
  506. and include PCI device scope covered by these DMA
  507. remapping devices.
  508. config DMAR_DEFAULT_ON
  509. def_bool y
  510. prompt "Enable DMA Remapping Devices by default"
  511. depends on DMAR
  512. help
  513. Selecting this option will enable a DMAR device at boot time if
  514. one is found. If this option is not selected, DMAR support can
  515. be enabled by passing intel_iommu=on to the kernel. It is
  516. recommended you say N here while the DMAR code remains
  517. experimental.
  518. endmenu
  519. endif
  520. source "net/Kconfig"
  521. source "drivers/Kconfig"
  522. source "arch/ia64/hp/sim/Kconfig"
  523. config MSPEC
  524. tristate "Memory special operations driver"
  525. depends on IA64
  526. select IA64_UNCACHED_ALLOCATOR
  527. help
  528. If you have an ia64 and you want to enable memory special
  529. operations support (formerly known as fetchop), say Y here,
  530. otherwise say N.
  531. source "fs/Kconfig"
  532. source "arch/ia64/Kconfig.debug"
  533. source "security/Kconfig"
  534. source "crypto/Kconfig"
  535. source "arch/ia64/kvm/Kconfig"
  536. source "lib/Kconfig"
  537. config IOMMU_HELPER
  538. def_bool (IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB || IA64_GENERIC || SWIOTLB)
  539. config IOMMU_API
  540. def_bool (DMAR)