arch/ia64/Kconfig

   1 #
   2 # For a description of the syntax of this configuration file,
   3 # see Documentation/kbuild/kconfig-language.txt.
   4 #
   5
   6 mainmenu "IA-64 Linux Kernel Configuration"
   7
   8 source "init/Kconfig"
   9
  10 menu "Processor type and features"
  11
  12 config IA64
  13         bool
  14         select PCI if (!IA64_HP_SIM)
  15         select ACPI if (!IA64_HP_SIM)
  16         select PM if (!IA64_HP_SIM)
  17         select ARCH_SUPPORTS_MSI
  18         default y
  19         help
  20           The Itanium Processor Family is Intel's 64-bit successor to
  21           the 32-bit X86 line.  The IA-64 Linux project has a home
  22           page at <http://www.linuxia64.org/> and a mailing list at
  23           <linux-ia64@vger.kernel.org>.
  24
  25 config 64BIT
  26         bool
  27         select ATA_NONSTANDARD if ATA
  28         default y
  29
  30 config ZONE_DMA
  31         def_bool y
  32         depends on !IA64_SGI_SN2
  33
  34 config QUICKLIST
  35         bool
  36         default y
  37
  38 config MMU
  39         bool
  40         default y
  41
  42 config SWIOTLB
  43        bool
  44
  45 config GENERIC_LOCKBREAK
  46         bool
  47         default y
  48         depends on SMP && PREEMPT
  49
  50 config RWSEM_XCHGADD_ALGORITHM
  51         bool
  52         default y
  53
  54 config ARCH_HAS_ILOG2_U32
  55         bool
  56         default n
  57
  58 config ARCH_HAS_ILOG2_U64
  59         bool
  60         default n
  61
  62 config HUGETLB_PAGE_SIZE_VARIABLE
  63         bool
  64         depends on HUGETLB_PAGE
  65         default y
  66
  67 config GENERIC_FIND_NEXT_BIT
  68         bool
  69         default y
  70
  71 config GENERIC_CALIBRATE_DELAY
  72         bool
  73         default y
  74
  75 config GENERIC_TIME
  76         bool
  77         default y
  78
  79 config GENERIC_TIME_VSYSCALL
  80         bool
  81         default y
  82
  83 config DMI
  84         bool
  85         default y
  86
  87 config EFI
  88         bool
  89         default y
  90
  91 config GENERIC_IOMAP
  92         bool
  93         default y
  94
  95 config SCHED_NO_NO_OMIT_FRAME_POINTER
  96         bool
  97         default y
  98
  99 config IA64_UNCACHED_ALLOCATOR
 100         bool
 101         select GENERIC_ALLOCATOR
 102
 103 config AUDIT_ARCH
 104         bool
 105         default y
 106
 107 choice
 108         prompt "System type"
 109         default IA64_GENERIC
 110
 111 config IA64_GENERIC
 112         bool "generic"
 113         select NUMA
 114         select ACPI_NUMA
 115         select SWIOTLB
 116         help
 117           This selects the system type of your hardware.  A "generic" kernel
 118           will run on any supported IA-64 system.  However, if you configure
 119           a kernel for your specific system, it will be faster and smaller.
 120
 121           generic               For any supported IA-64 system
 122           DIG-compliant         For DIG ("Developer's Interface Guide") compliant systems
 123           HP-zx1/sx1000         For HP systems
 124           HP-zx1/sx1000+swiotlb For HP systems with (broken) DMA-constrained devices.
 125           SGI-SN2               For SGI Altix systems
 126           Ski-simulator         For the HP simulator <http://www.hpl.hp.com/research/linux/ski/>
 127
 128           If you don't know what to do, choose "generic".
 129
 130 config IA64_DIG
 131         bool "DIG-compliant"
 132         select SWIOTLB
 133
 134 config IA64_HP_ZX1
 135         bool "HP-zx1/sx1000"
 136         help
 137           Build a kernel that runs on HP zx1 and sx1000 systems.  This adds
 138           support for the HP I/O MMU.
 139
 140 config IA64_HP_ZX1_SWIOTLB
 141         bool "HP-zx1/sx1000 with software I/O TLB"
 142         select SWIOTLB
 143         help
 144           Build a kernel that runs on HP zx1 and sx1000 systems even when they
 145           have broken PCI devices which cannot DMA to full 32 bits.  Apart
 146           from support for the HP I/O MMU, this includes support for the software
 147           I/O TLB, which allows supporting the broken devices at the expense of
 148           wasting some kernel memory (about 2MB by default).
 149
 150 config IA64_SGI_SN2
 151         bool "SGI-SN2"
 152         help
 153           Selecting this option will optimize the kernel for use on sn2 based
 154           systems, but the resulting kernel binary will not run on other
 155           types of ia64 systems.  If you have an SGI Altix system, it's safe
 156           to select this option.  If in doubt, select ia64 generic support
 157           instead.
 158
 159 config IA64_HP_SIM
 160         bool "Ski-simulator"
 161         select SWIOTLB
 162
 163 endchoice
 164
 165 choice
 166         prompt "Processor type"
 167         default ITANIUM
 168
 169 config ITANIUM
 170         bool "Itanium"
 171         help
 172           Select your IA-64 processor type.  The default is Itanium.
 173           This choice is safe for all IA-64 systems, but may not perform
 174           optimally on systems with, say, Itanium 2 or newer processors.
 175
 176 config MCKINLEY
 177         bool "Itanium 2"
 178         help
 179           Select this to configure for an Itanium 2 (McKinley) processor.
 180
 181 endchoice
 182
 183 choice
 184         prompt "Kernel page size"
 185         default IA64_PAGE_SIZE_16KB
 186
 187 config IA64_PAGE_SIZE_4KB
 188         bool "4KB"
 189         help
 190           This lets you select the page size of the kernel.  For best IA-64
 191           performance, a page size of 8KB or 16KB is recommended.  For best
 192           IA-32 compatibility, a page size of 4KB should be selected (the vast
 193           majority of IA-32 binaries work perfectly fine with a larger page
 194           size).  For Itanium 2 or newer systems, a page size of 64KB can also
 195           be selected.
 196
 197           4KB                For best IA-32 compatibility
 198           8KB                For best IA-64 performance
 199           16KB               For best IA-64 performance
 200           64KB               Requires Itanium 2 or newer processor.
 201
 202           If you don't know what to do, choose 16KB.
 203
 204 config IA64_PAGE_SIZE_8KB
 205         bool "8KB"
 206
 207 config IA64_PAGE_SIZE_16KB
 208         bool "16KB"
 209
 210 config IA64_PAGE_SIZE_64KB
 211         depends on !ITANIUM
 212         bool "64KB"
 213
 214 endchoice
 215
 216 choice
 217         prompt "Page Table Levels"
 218         default PGTABLE_3
 219
 220 config PGTABLE_3
 221         bool "3 Levels"
 222
 223 config PGTABLE_4
 224         depends on !IA64_PAGE_SIZE_64KB
 225         bool "4 Levels"
 226
 227 endchoice
 228
 229 source kernel/Kconfig.hz
 230
 231 config IA64_BRL_EMU
 232         bool
 233         depends on ITANIUM
 234         default y
 235
 236 # align cache-sensitive data to 128 bytes
 237 config IA64_L1_CACHE_SHIFT
 238         int
 239         default "7" if MCKINLEY
 240         default "6" if ITANIUM
 241
 242 config IA64_CYCLONE
 243         bool "Cyclone (EXA) Time Source support"
 244         help
 245           Say Y here to enable support for IBM EXA Cyclone time source.
 246           If you're unsure, answer N.
 247
 248 config IOSAPIC
 249         bool
 250         depends on !IA64_HP_SIM
 251         default y
 252
 253 config IA64_SGI_SN_XP
 254         tristate "Support communication between SGI SSIs"
 255         depends on IA64_GENERIC || IA64_SGI_SN2
 256         select IA64_UNCACHED_ALLOCATOR
 257         help
 258           An SGI machine can be divided into multiple Single System
 259           Images which act independently of each other and have
 260           hardware based memory protection from the others.  Enabling
 261           this feature will allow for direct communication between SSIs
 262           based on a network adapter and DMA messaging.
 263
 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
 270 config SMP
 271         bool "Symmetric multi-processing support"
 272         help
 273           This enables support for systems with more than one CPU. If you have
 274           a system with only one CPU, say N.  If you have a system with more
 275           than one CPU, say Y.
 276
 277           If you say N here, the kernel will run on single and multiprocessor
 278           systems, but will use only one CPU of a multiprocessor system.  If
 279           you say Y here, the kernel will run on many, but not all,
 280           single processor systems.  On a single processor system, the kernel
 281           will run faster if you say N here.
 282
 283           See also the <file:Documentation/smp.txt> and the SMP-HOWTO
 284           available at <http://www.tldp.org/docs.html#howto>.
 285
 286           If you don't know what to do here, say N.
 287
 288 config NR_CPUS
 289         int "Maximum number of CPUs (2-1024)"
 290         range 2 1024
 291         depends on SMP
 292         default "1024"
 293         help
 294           You should set this to the number of CPUs in your system, but
 295           keep in mind that a kernel compiled for, e.g., 2 CPUs will boot but
 296           only use 2 CPUs on a >2 CPU system.  Setting this to a value larger
 297           than 64 will cause the use of a CPU mask array, causing a small
 298           performance hit.
 299
 300 config HOTPLUG_CPU
 301         bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
 302         depends on SMP && EXPERIMENTAL
 303         select HOTPLUG
 304         default n
 305         ---help---
 306           Say Y here to experiment with turning CPUs off and on.  CPUs
 307           can be controlled through /sys/devices/system/cpu/cpu#.
 308           Say N if you want to disable CPU hotplug.
 309
 310 config ARCH_ENABLE_MEMORY_HOTPLUG
 311         def_bool y
 312
 313 config ARCH_ENABLE_MEMORY_HOTREMOVE
 314         def_bool y
 315
 316 config SCHED_SMT
 317         bool "SMT scheduler support"
 318         depends on SMP
 319         help
 320           Improves the CPU scheduler's decision making when dealing with
 321           Intel IA64 chips with MultiThreading at a cost of slightly increased
 322           overhead in some places. If unsure say N here.
 323
 324 config PERMIT_BSP_REMOVE
 325         bool "Support removal of Bootstrap Processor"
 326         depends on HOTPLUG_CPU
 327         default n
 328         ---help---
 329         Say Y here if your platform SAL will support removal of BSP with HOTPLUG_CPU
 330         support.
 331
 332 config FORCE_CPEI_RETARGET
 333         bool "Force assumption that CPEI can be re-targetted"
 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-targetted 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
 343 source "kernel/Kconfig.preempt"
 344
 345 source "mm/Kconfig"
 346
 347 config ARCH_SELECT_MEMORY_MODEL
 348         def_bool y
 349
 350 config ARCH_DISCONTIGMEM_ENABLE
 351         def_bool y
 352         help
 353           Say Y to support efficient handling of discontiguous physical memory,
 354           for architectures which are either NUMA (Non-Uniform Memory Access)
 355           or have huge holes in the physical address space for other reasons.
 356           See <file:Documentation/vm/numa> for more.
 357
 358 config ARCH_FLATMEM_ENABLE
 359         def_bool y
 360
 361 config ARCH_SPARSEMEM_ENABLE
 362         def_bool y
 363         depends on ARCH_DISCONTIGMEM_ENABLE
 364         select SPARSEMEM_VMEMMAP_ENABLE
 365
 366 config ARCH_DISCONTIGMEM_DEFAULT
 367         def_bool y if (IA64_SGI_SN2 || IA64_GENERIC || IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB)
 368         depends on ARCH_DISCONTIGMEM_ENABLE
 369
 370 config NUMA
 371         bool "NUMA support"
 372         depends on !IA64_HP_SIM && !FLATMEM
 373         default y if IA64_SGI_SN2
 374         select ACPI_NUMA if ACPI
 375         help
 376           Say Y to compile the kernel to support NUMA (Non-Uniform Memory
 377           Access).  This option is for configuring high-end multiprocessor
 378           server systems.  If in doubt, say N.
 379
 380 config NODES_SHIFT
 381         int "Max num nodes shift(3-10)"
 382         range 3 10
 383         default "10"
 384         depends on NEED_MULTIPLE_NODES
 385         help
 386           This option specifies the maximum number of nodes in your SSI system.
 387           MAX_NUMNODES will be 2^(This value).
 388           If in doubt, use the default.
 389
 390 config ARCH_POPULATES_NODE_MAP
 391         def_bool y
 392
 393 # VIRTUAL_MEM_MAP and FLAT_NODE_MEM_MAP are functionally equivalent.
 394 # VIRTUAL_MEM_MAP has been retained for historical reasons.
 395 config VIRTUAL_MEM_MAP
 396         bool "Virtual mem map"
 397         depends on !SPARSEMEM
 398         default y if !IA64_HP_SIM
 399         help
 400           Say Y to compile the kernel with support for a virtual mem map.
 401           This code also only takes effect if a memory hole of greater than
 402           1 Gb is found during boot.  You must turn this option on if you
 403           require the DISCONTIGMEM option for your machine. If you are
 404           unsure, say Y.
 405
 406 config HOLES_IN_ZONE
 407         bool
 408         default y if VIRTUAL_MEM_MAP
 409
 410 config HAVE_ARCH_EARLY_PFN_TO_NID
 411         def_bool y
 412         depends on NEED_MULTIPLE_NODES
 413
 414 config HAVE_ARCH_NODEDATA_EXTENSION
 415         def_bool y
 416         depends on NUMA
 417
 418 config IA32_SUPPORT
 419         bool "Support for Linux/x86 binaries"
 420         help
 421           IA-64 processors can execute IA-32 (X86) instructions.  By
 422           saying Y here, the kernel will include IA-32 system call
 423           emulation support which makes it possible to transparently
 424           run IA-32 Linux binaries on an IA-64 Linux system.
 425           If in doubt, say Y.
 426
 427 config COMPAT
 428         bool
 429         depends on IA32_SUPPORT
 430         default y
 431
 432 config COMPAT_FOR_U64_ALIGNMENT
 433         def_bool COMPAT
 434
 435 config IA64_MCA_RECOVERY
 436         tristate "MCA recovery from errors other than TLB."
 437
 438 config PERFMON
 439         bool "Performance monitor support"
 440         help
 441           Selects whether support for the IA-64 performance monitor hardware
 442           is included in the kernel.  This makes some kernel data-structures a
 443           little bigger and slows down execution a bit, but it is generally
 444           a good idea to turn this on.  If you're unsure, say Y.
 445
 446 config IA64_PALINFO
 447         tristate "/proc/pal support"
 448         help
 449           If you say Y here, you are able to get PAL (Processor Abstraction
 450           Layer) information in /proc/pal.  This contains useful information
 451           about the processors in your systems, such as cache and TLB sizes
 452           and the PAL firmware version in use.
 453
 454           To use this option, you have to ensure that the "/proc file system
 455           support" (CONFIG_PROC_FS) is enabled, too.
 456
 457 config IA64_MC_ERR_INJECT
 458         tristate "MC error injection support"
 459         help
 460           Adds support for MC error injection. If enabled, the kernel
 461           will provide a sysfs interface for user applications to
 462           call MC error injection PAL procedures to inject various errors.
 463           This is a useful tool for MCA testing.
 464
 465           If you're unsure, do not select this option.
 466
 467 config SGI_SN
 468         def_bool y if (IA64_SGI_SN2 || IA64_GENERIC)
 469
 470 config IA64_ESI
 471         bool "ESI (Extensible SAL Interface) support"
 472         help
 473           If you say Y here, support is built into the kernel to
 474           make ESI calls.  ESI calls are used to support vendor-specific
 475           firmware extensions, such as the ability to inject memory-errors
 476           for test-purposes.  If you're unsure, say N.
 477
 478 config IA64_HP_AML_NFW
 479         bool "Support ACPI AML calls to native firmware"
 480         help
 481           This driver installs a global ACPI Operation Region handler for
 482           region 0xA1.  AML methods can use this OpRegion to call arbitrary
 483           native firmware functions.  The driver installs the OpRegion
 484           handler if there is an HPQ5001 device or if the user supplies
 485           the "force" module parameter, e.g., with the "aml_nfw.force"
 486           kernel command line option.
 487
 488 source "drivers/sn/Kconfig"
 489
 490 config KEXEC
 491         bool "kexec system call (EXPERIMENTAL)"
 492         depends on EXPERIMENTAL && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
 493         help
 494           kexec is a system call that implements the ability to shutdown your
 495           current kernel, and to start another kernel.  It is like a reboot
 496           but it is independent of the system firmware.   And like a reboot
 497           you can start any kernel with it, not just Linux.
 498
 499           The name comes from the similarity to the exec system call.
 500
 501           It is an ongoing process to be certain the hardware in a machine
 502           is properly shutdown, so do not be surprised if this code does not
 503           initially work for you.  It may help to enable device hotplugging
 504           support.  As of this writing the exact hardware interface is
 505           strongly in flux, so no good recommendation can be made.
 506
 507 config CRASH_DUMP
 508           bool "kernel crash dumps (EXPERIMENTAL)"
 509           depends on EXPERIMENTAL && IA64_MCA_RECOVERY && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
 510           help
 511             Generate crash dump after being started by kexec.
 512
 513 source "drivers/firmware/Kconfig"
 514
 515 source "fs/Kconfig.binfmt"
 516
 517 endmenu
 518
 519 menu "Power management and ACPI"
 520
 521 source "kernel/power/Kconfig"
 522
 523 source "drivers/acpi/Kconfig"
 524
 525 if PM
 526
 527 source "arch/ia64/kernel/cpufreq/Kconfig"
 528
 529 endif
 530
 531 endmenu
 532
 533 if !IA64_HP_SIM
 534
 535 menu "Bus options (PCI, PCMCIA)"
 536
 537 config PCI
 538         bool "PCI support"
 539         help
 540           Real IA-64 machines all have PCI/PCI-X/PCI Express busses.  Say Y
 541           here unless you are using a simulator without PCI support.
 542
 543 config PCI_DOMAINS
 544         def_bool PCI
 545
 546 config PCI_SYSCALL
 547         def_bool PCI
 548
 549 source "drivers/pci/pcie/Kconfig"
 550
 551 source "drivers/pci/Kconfig"
 552
 553 source "drivers/pci/hotplug/Kconfig"
 554
 555 source "drivers/pcmcia/Kconfig"
 556
 557 endmenu
 558
 559 endif
 560
 561 source "net/Kconfig"
 562
 563 source "drivers/Kconfig"
 564
 565 config MSPEC
 566         tristate "Memory special operations driver"
 567         depends on IA64
 568         select IA64_UNCACHED_ALLOCATOR
 569         help
 570           If you have an ia64 and you want to enable memory special
 571           operations support (formerly known as fetchop), say Y here,
 572           otherwise say N.
 573
 574 source "fs/Kconfig"
 575
 576 source "lib/Kconfig"
 577
 578 #
 579 # Use the generic interrupt handling code in kernel/irq/:
 580 #
 581 config GENERIC_HARDIRQS
 582         bool
 583         default y
 584
 585 config GENERIC_IRQ_PROBE
 586         bool
 587         default y
 588
 589 config GENERIC_PENDING_IRQ
 590         bool
 591         depends on GENERIC_HARDIRQS && SMP
 592         default y
 593
 594 config IRQ_PER_CPU
 595         bool
 596         default y
 597
 598 source "arch/ia64/hp/sim/Kconfig"
 599
 600 source "kernel/Kconfig.instrumentation"
 601
 602 source "arch/ia64/Kconfig.debug"
 603
 604 source "security/Kconfig"
 605
 606 source "crypto/Kconfig"