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         select HAVE_IDE
  19         select HAVE_OPROFILE
  20         select HAVE_KPROBES
  21         default y
  22         help
  23           The Itanium Processor Family is Intel's 64-bit successor to
  24           the 32-bit X86 line.  The IA-64 Linux project has a home
  25           page at <http://www.linuxia64.org/> and a mailing list at
  26           <linux-ia64@vger.kernel.org>.
  27
  28 config 64BIT
  29         bool
  30         select ATA_NONSTANDARD if ATA
  31         default y
  32
  33 config ZONE_DMA
  34         def_bool y
  35         depends on !IA64_SGI_SN2
  36
  37 config QUICKLIST
  38         bool
  39         default y
  40
  41 config MMU
  42         bool
  43         default y
  44
  45 config SWIOTLB
  46        bool
  47
  48 config GENERIC_LOCKBREAK
  49         bool
  50         default y
  51         depends on SMP && PREEMPT
  52
  53 config RWSEM_XCHGADD_ALGORITHM
  54         bool
  55         default y
  56
  57 config ARCH_HAS_ILOG2_U32
  58         bool
  59         default n
  60
  61 config ARCH_HAS_ILOG2_U64
  62         bool
  63         default n
  64
  65 config HUGETLB_PAGE_SIZE_VARIABLE
  66         bool
  67         depends on HUGETLB_PAGE
  68         default y
  69
  70 config GENERIC_FIND_NEXT_BIT
  71         bool
  72         default y
  73
  74 config GENERIC_CALIBRATE_DELAY
  75         bool
  76         default y
  77
  78 config GENERIC_TIME
  79         bool
  80         default y
  81
  82 config GENERIC_TIME_VSYSCALL
  83         bool
  84         default y
  85
  86 config HAVE_SETUP_PER_CPU_AREA
  87         def_bool y
  88
  89 config DMI
  90         bool
  91         default y
  92
  93 config EFI
  94         bool
  95         default y
  96
  97 config GENERIC_IOMAP
  98         bool
  99         default y
 100
 101 config SCHED_NO_NO_OMIT_FRAME_POINTER
 102         bool
 103         default y
 104
 105 config IA64_UNCACHED_ALLOCATOR
 106         bool
 107         select GENERIC_ALLOCATOR
 108
 109 config AUDIT_ARCH
 110         bool
 111         default y
 112
 113 choice
 114         prompt "System type"
 115         default IA64_GENERIC
 116
 117 config IA64_GENERIC
 118         bool "generic"
 119         select NUMA
 120         select ACPI_NUMA
 121         select SWIOTLB
 122         help
 123           This selects the system type of your hardware.  A "generic" kernel
 124           will run on any supported IA-64 system.  However, if you configure
 125           a kernel for your specific system, it will be faster and smaller.
 126
 127           generic               For any supported IA-64 system
 128           DIG-compliant         For DIG ("Developer's Interface Guide") compliant systems
 129           HP-zx1/sx1000         For HP systems
 130           HP-zx1/sx1000+swiotlb For HP systems with (broken) DMA-constrained devices.
 131           SGI-SN2               For SGI Altix systems
 132           Ski-simulator         For the HP simulator <http://www.hpl.hp.com/research/linux/ski/>
 133
 134           If you don't know what to do, choose "generic".
 135
 136 config IA64_DIG
 137         bool "DIG-compliant"
 138         select SWIOTLB
 139
 140 config IA64_HP_ZX1
 141         bool "HP-zx1/sx1000"
 142         help
 143           Build a kernel that runs on HP zx1 and sx1000 systems.  This adds
 144           support for the HP I/O MMU.
 145
 146 config IA64_HP_ZX1_SWIOTLB
 147         bool "HP-zx1/sx1000 with software I/O TLB"
 148         select SWIOTLB
 149         help
 150           Build a kernel that runs on HP zx1 and sx1000 systems even when they
 151           have broken PCI devices which cannot DMA to full 32 bits.  Apart
 152           from support for the HP I/O MMU, this includes support for the software
 153           I/O TLB, which allows supporting the broken devices at the expense of
 154           wasting some kernel memory (about 2MB by default).
 155
 156 config IA64_SGI_SN2
 157         bool "SGI-SN2"
 158         select NUMA
 159         select ACPI_NUMA
 160         help
 161           Selecting this option will optimize the kernel for use on sn2 based
 162           systems, but the resulting kernel binary will not run on other
 163           types of ia64 systems.  If you have an SGI Altix system, it's safe
 164           to select this option.  If in doubt, select ia64 generic support
 165           instead.
 166
 167 config IA64_HP_SIM
 168         bool "Ski-simulator"
 169         select SWIOTLB
 170
 171 endchoice
 172
 173 choice
 174         prompt "Processor type"
 175         default ITANIUM
 176
 177 config ITANIUM
 178         bool "Itanium"
 179         help
 180           Select your IA-64 processor type.  The default is Itanium.
 181           This choice is safe for all IA-64 systems, but may not perform
 182           optimally on systems with, say, Itanium 2 or newer processors.
 183
 184 config MCKINLEY
 185         bool "Itanium 2"
 186         help
 187           Select this to configure for an Itanium 2 (McKinley) processor.
 188
 189 endchoice
 190
 191 choice
 192         prompt "Kernel page size"
 193         default IA64_PAGE_SIZE_16KB
 194
 195 config IA64_PAGE_SIZE_4KB
 196         bool "4KB"
 197         help
 198           This lets you select the page size of the kernel.  For best IA-64
 199           performance, a page size of 8KB or 16KB is recommended.  For best
 200           IA-32 compatibility, a page size of 4KB should be selected (the vast
 201           majority of IA-32 binaries work perfectly fine with a larger page
 202           size).  For Itanium 2 or newer systems, a page size of 64KB can also
 203           be selected.
 204
 205           4KB                For best IA-32 compatibility
 206           8KB                For best IA-64 performance
 207           16KB               For best IA-64 performance
 208           64KB               Requires Itanium 2 or newer processor.
 209
 210           If you don't know what to do, choose 16KB.
 211
 212 config IA64_PAGE_SIZE_8KB
 213         bool "8KB"
 214
 215 config IA64_PAGE_SIZE_16KB
 216         bool "16KB"
 217
 218 config IA64_PAGE_SIZE_64KB
 219         depends on !ITANIUM
 220         bool "64KB"
 221
 222 endchoice
 223
 224 choice
 225         prompt "Page Table Levels"
 226         default PGTABLE_3
 227
 228 config PGTABLE_3
 229         bool "3 Levels"
 230
 231 config PGTABLE_4
 232         depends on !IA64_PAGE_SIZE_64KB
 233         bool "4 Levels"
 234
 235 endchoice
 236
 237 if IA64_HP_SIM
 238 config HZ
 239         default 32
 240 endif
 241
 242 if !IA64_HP_SIM
 243 source kernel/Kconfig.hz
 244 endif
 245
 246 config IA64_BRL_EMU
 247         bool
 248         depends on ITANIUM
 249         default y
 250
 251 # align cache-sensitive data to 128 bytes
 252 config IA64_L1_CACHE_SHIFT
 253         int
 254         default "7" if MCKINLEY
 255         default "6" if ITANIUM
 256
 257 config IA64_CYCLONE
 258         bool "Cyclone (EXA) Time Source support"
 259         help
 260           Say Y here to enable support for IBM EXA Cyclone time source.
 261           If you're unsure, answer N.
 262
 263 config IOSAPIC
 264         bool
 265         depends on !IA64_HP_SIM
 266         default y
 267
 268 config IA64_SGI_SN_XP
 269         tristate "Support communication between SGI SSIs"
 270         depends on IA64_GENERIC || IA64_SGI_SN2
 271         select IA64_UNCACHED_ALLOCATOR
 272         help
 273           An SGI machine can be divided into multiple Single System
 274           Images which act independently of each other and have
 275           hardware based memory protection from the others.  Enabling
 276           this feature will allow for direct communication between SSIs
 277           based on a network adapter and DMA messaging.
 278
 279 config FORCE_MAX_ZONEORDER
 280         int "MAX_ORDER (11 - 17)"  if !HUGETLB_PAGE
 281         range 11 17  if !HUGETLB_PAGE
 282         default "17" if HUGETLB_PAGE
 283         default "11"
 284
 285 config SMP
 286         bool "Symmetric multi-processing support"
 287         help
 288           This enables support for systems with more than one CPU. If you have
 289           a system with only one CPU, say N.  If you have a system with more
 290           than one CPU, say Y.
 291
 292           If you say N here, the kernel will run on single and multiprocessor
 293           systems, but will use only one CPU of a multiprocessor system.  If
 294           you say Y here, the kernel will run on many, but not all,
 295           single processor systems.  On a single processor system, the kernel
 296           will run faster if you say N here.
 297
 298           See also the SMP-HOWTO available at
 299           <http://www.tldp.org/docs.html#howto>.
 300
 301           If you don't know what to do here, say N.
 302
 303 config NR_CPUS
 304         int "Maximum number of CPUs (2-1024)"
 305         range 2 1024
 306         depends on SMP
 307         default "1024"
 308         help
 309           You should set this to the number of CPUs in your system, but
 310           keep in mind that a kernel compiled for, e.g., 2 CPUs will boot but
 311           only use 2 CPUs on a >2 CPU system.  Setting this to a value larger
 312           than 64 will cause the use of a CPU mask array, causing a small
 313           performance hit.
 314
 315 config HOTPLUG_CPU
 316         bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
 317         depends on SMP && EXPERIMENTAL
 318         select HOTPLUG
 319         default n
 320         ---help---
 321           Say Y here to experiment with turning CPUs off and on.  CPUs
 322           can be controlled through /sys/devices/system/cpu/cpu#.
 323           Say N if you want to disable CPU hotplug.
 324
 325 config ARCH_ENABLE_MEMORY_HOTPLUG
 326         def_bool y
 327
 328 config ARCH_ENABLE_MEMORY_HOTREMOVE
 329         def_bool y
 330
 331 config SCHED_SMT
 332         bool "SMT scheduler support"
 333         depends on SMP
 334         help
 335           Improves the CPU scheduler's decision making when dealing with
 336           Intel IA64 chips with MultiThreading at a cost of slightly increased
 337           overhead in some places. If unsure say N here.
 338
 339 config PERMIT_BSP_REMOVE
 340         bool "Support removal of Bootstrap Processor"
 341         depends on HOTPLUG_CPU
 342         default n
 343         ---help---
 344         Say Y here if your platform SAL will support removal of BSP with HOTPLUG_CPU
 345         support.
 346
 347 config FORCE_CPEI_RETARGET
 348         bool "Force assumption that CPEI can be re-targetted"
 349         depends on PERMIT_BSP_REMOVE
 350         default n
 351         ---help---
 352         Say Y if you need to force the assumption that CPEI can be re-targetted to
 353         any cpu in the system. This hint is available via ACPI 3.0 specifications.
 354         Tiger4 systems are capable of re-directing CPEI to any CPU other than BSP.
 355         This option it useful to enable this feature on older BIOS's as well.
 356         You can also enable this by using boot command line option force_cpei=1.
 357
 358 source "kernel/Kconfig.preempt"
 359
 360 source "mm/Kconfig"
 361
 362 config ARCH_SELECT_MEMORY_MODEL
 363         def_bool y
 364
 365 config ARCH_DISCONTIGMEM_ENABLE
 366         def_bool y
 367         help
 368           Say Y to support efficient handling of discontiguous physical memory,
 369           for architectures which are either NUMA (Non-Uniform Memory Access)
 370           or have huge holes in the physical address space for other reasons.
 371           See <file:Documentation/vm/numa> for more.
 372
 373 config ARCH_FLATMEM_ENABLE
 374         def_bool y
 375
 376 config ARCH_SPARSEMEM_ENABLE
 377         def_bool y
 378         depends on ARCH_DISCONTIGMEM_ENABLE
 379         select SPARSEMEM_VMEMMAP_ENABLE
 380
 381 config ARCH_DISCONTIGMEM_DEFAULT
 382         def_bool y if (IA64_SGI_SN2 || IA64_GENERIC || IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB)
 383         depends on ARCH_DISCONTIGMEM_ENABLE
 384
 385 config NUMA
 386         bool "NUMA support"
 387         depends on !IA64_HP_SIM && !FLATMEM
 388         default y if IA64_SGI_SN2
 389         select ACPI_NUMA if ACPI
 390         help
 391           Say Y to compile the kernel to support NUMA (Non-Uniform Memory
 392           Access).  This option is for configuring high-end multiprocessor
 393           server systems.  If in doubt, say N.
 394
 395 config NODES_SHIFT
 396         int "Max num nodes shift(3-10)"
 397         range 3 10
 398         default "10"
 399         depends on NEED_MULTIPLE_NODES
 400         help
 401           This option specifies the maximum number of nodes in your SSI system.
 402           MAX_NUMNODES will be 2^(This value).
 403           If in doubt, use the default.
 404
 405 config ARCH_POPULATES_NODE_MAP
 406         def_bool y
 407
 408 # VIRTUAL_MEM_MAP and FLAT_NODE_MEM_MAP are functionally equivalent.
 409 # VIRTUAL_MEM_MAP has been retained for historical reasons.
 410 config VIRTUAL_MEM_MAP
 411         bool "Virtual mem map"
 412         depends on !SPARSEMEM
 413         default y if !IA64_HP_SIM
 414         help
 415           Say Y to compile the kernel with support for a virtual mem map.
 416           This code also only takes effect if a memory hole of greater than
 417           1 Gb is found during boot.  You must turn this option on if you
 418           require the DISCONTIGMEM option for your machine. If you are
 419           unsure, say Y.
 420
 421 config HOLES_IN_ZONE
 422         bool
 423         default y if VIRTUAL_MEM_MAP
 424
 425 config HAVE_ARCH_EARLY_PFN_TO_NID
 426         def_bool y
 427         depends on NEED_MULTIPLE_NODES
 428
 429 config HAVE_ARCH_NODEDATA_EXTENSION
 430         def_bool y
 431         depends on NUMA
 432
 433 config IA32_SUPPORT
 434         bool "Support for Linux/x86 binaries"
 435         help
 436           IA-64 processors can execute IA-32 (X86) instructions.  By
 437           saying Y here, the kernel will include IA-32 system call
 438           emulation support which makes it possible to transparently
 439           run IA-32 Linux binaries on an IA-64 Linux system.
 440           If in doubt, say Y.
 441
 442 config COMPAT
 443         bool
 444         depends on IA32_SUPPORT
 445         default y
 446
 447 config COMPAT_FOR_U64_ALIGNMENT
 448         def_bool COMPAT
 449
 450 config IA64_MCA_RECOVERY
 451         tristate "MCA recovery from errors other than TLB."
 452
 453 config PERFMON
 454         bool "Performance monitor support"
 455         help
 456           Selects whether support for the IA-64 performance monitor hardware
 457           is included in the kernel.  This makes some kernel data-structures a
 458           little bigger and slows down execution a bit, but it is generally
 459           a good idea to turn this on.  If you're unsure, say Y.
 460
 461 config IA64_PALINFO
 462         tristate "/proc/pal support"
 463         help
 464           If you say Y here, you are able to get PAL (Processor Abstraction
 465           Layer) information in /proc/pal.  This contains useful information
 466           about the processors in your systems, such as cache and TLB sizes
 467           and the PAL firmware version in use.
 468
 469           To use this option, you have to ensure that the "/proc file system
 470           support" (CONFIG_PROC_FS) is enabled, too.
 471
 472 config IA64_MC_ERR_INJECT
 473         tristate "MC error injection support"
 474         help
 475           Adds support for MC error injection. If enabled, the kernel
 476           will provide a sysfs interface for user applications to
 477           call MC error injection PAL procedures to inject various errors.
 478           This is a useful tool for MCA testing.
 479
 480           If you're unsure, do not select this option.
 481
 482 config SGI_SN
 483         def_bool y if (IA64_SGI_SN2 || IA64_GENERIC)
 484
 485 config IA64_ESI
 486         bool "ESI (Extensible SAL Interface) support"
 487         help
 488           If you say Y here, support is built into the kernel to
 489           make ESI calls.  ESI calls are used to support vendor-specific
 490           firmware extensions, such as the ability to inject memory-errors
 491           for test-purposes.  If you're unsure, say N.
 492
 493 config IA64_HP_AML_NFW
 494         bool "Support ACPI AML calls to native firmware"
 495         help
 496           This driver installs a global ACPI Operation Region handler for
 497           region 0xA1.  AML methods can use this OpRegion to call arbitrary
 498           native firmware functions.  The driver installs the OpRegion
 499           handler if there is an HPQ5001 device or if the user supplies
 500           the "force" module parameter, e.g., with the "aml_nfw.force"
 501           kernel command line option.
 502
 503 source "drivers/sn/Kconfig"
 504
 505 config KEXEC
 506         bool "kexec system call (EXPERIMENTAL)"
 507         depends on EXPERIMENTAL && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
 508         help
 509           kexec is a system call that implements the ability to shutdown your
 510           current kernel, and to start another kernel.  It is like a reboot
 511           but it is independent of the system firmware.   And like a reboot
 512           you can start any kernel with it, not just Linux.
 513
 514           The name comes from the similarity to the exec system call.
 515
 516           It is an ongoing process to be certain the hardware in a machine
 517           is properly shutdown, so do not be surprised if this code does not
 518           initially work for you.  It may help to enable device hotplugging
 519           support.  As of this writing the exact hardware interface is
 520           strongly in flux, so no good recommendation can be made.
 521
 522 config CRASH_DUMP
 523           bool "kernel crash dumps (EXPERIMENTAL)"
 524           depends on EXPERIMENTAL && IA64_MCA_RECOVERY && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
 525           help
 526             Generate crash dump after being started by kexec.
 527
 528 source "drivers/firmware/Kconfig"
 529
 530 source "fs/Kconfig.binfmt"
 531
 532 endmenu
 533
 534 menu "Power management and ACPI"
 535
 536 source "kernel/power/Kconfig"
 537
 538 source "drivers/acpi/Kconfig"
 539
 540 if PM
 541
 542 source "arch/ia64/kernel/cpufreq/Kconfig"
 543
 544 endif
 545
 546 endmenu
 547
 548 if !IA64_HP_SIM
 549
 550 menu "Bus options (PCI, PCMCIA)"
 551
 552 config PCI
 553         bool "PCI support"
 554         help
 555           Real IA-64 machines all have PCI/PCI-X/PCI Express busses.  Say Y
 556           here unless you are using a simulator without PCI support.
 557
 558 config PCI_DOMAINS
 559         def_bool PCI
 560
 561 config PCI_SYSCALL
 562         def_bool PCI
 563
 564 source "drivers/pci/pcie/Kconfig"
 565
 566 source "drivers/pci/Kconfig"
 567
 568 source "drivers/pci/hotplug/Kconfig"
 569
 570 source "drivers/pcmcia/Kconfig"
 571
 572 endmenu
 573
 574 endif
 575
 576 source "net/Kconfig"
 577
 578 source "drivers/Kconfig"
 579
 580 config MSPEC
 581         tristate "Memory special operations driver"
 582         depends on IA64
 583         select IA64_UNCACHED_ALLOCATOR
 584         help
 585           If you have an ia64 and you want to enable memory special
 586           operations support (formerly known as fetchop), say Y here,
 587           otherwise say N.
 588
 589 source "fs/Kconfig"
 590
 591 source "lib/Kconfig"
 592
 593 #
 594 # Use the generic interrupt handling code in kernel/irq/:
 595 #
 596 config GENERIC_HARDIRQS
 597         bool
 598         default y
 599
 600 config GENERIC_IRQ_PROBE
 601         bool
 602         default y
 603
 604 config GENERIC_PENDING_IRQ
 605         bool
 606         depends on GENERIC_HARDIRQS && SMP
 607         default y
 608
 609 config IRQ_PER_CPU
 610         bool
 611         default y
 612
 613 source "arch/ia64/hp/sim/Kconfig"
 614
 615 source "arch/ia64/Kconfig.debug"
 616
 617 source "security/Kconfig"
 618
 619 source "crypto/Kconfig"