arch/ia64/Kconfig

   1 source "init/Kconfig"
   2
   3 source "kernel/Kconfig.freezer"
   4
   5 menu "Processor type and features"
   6
   7 config IA64
   8         bool
   9         select PCI if (!IA64_HP_SIM)
  10         select ACPI if (!IA64_HP_SIM)
  11         select PM if (!IA64_HP_SIM)
  12         select ARCH_SUPPORTS_MSI
  13         select HAVE_UNSTABLE_SCHED_CLOCK
  14         select HAVE_IDE
  15         select HAVE_OPROFILE
  16         select HAVE_KPROBES
  17         select HAVE_KRETPROBES
  18         select HAVE_FTRACE_MCOUNT_RECORD
  19         select HAVE_DYNAMIC_FTRACE if (!ITANIUM)
  20         select HAVE_FUNCTION_TRACER
  21         select HAVE_DMA_ATTRS
  22         select HAVE_KVM
  23         select HAVE_ARCH_TRACEHOOK
  24         select HAVE_DMA_API_DEBUG
  25         select HAVE_GENERIC_HARDIRQS
  26         select HAVE_MEMBLOCK
  27         select HAVE_MEMBLOCK_NODE_MAP
  28         select HAVE_VIRT_CPU_ACCOUNTING
  29         select VIRT_TO_BUS
  30         select ARCH_DISCARD_MEMBLOCK
  31         select GENERIC_IRQ_PROBE
  32         select GENERIC_PENDING_IRQ if SMP
  33         select GENERIC_IRQ_SHOW
  34         select ARCH_WANT_OPTIONAL_GPIOLIB
  35         select ARCH_HAVE_NMI_SAFE_CMPXCHG
  36         select GENERIC_IOMAP
  37         select GENERIC_SMP_IDLE_THREAD
  38         select ARCH_INIT_TASK
  39         select ARCH_TASK_STRUCT_ALLOCATOR
  40         select ARCH_THREAD_INFO_ALLOCATOR
  41         select ARCH_CLOCKSOURCE_DATA
  42         select GENERIC_TIME_VSYSCALL_OLD
  43         select SYSCTL_ARCH_UNALIGN_NO_WARN
  44         select HAVE_MOD_ARCH_SPECIFIC
  45         select MODULES_USE_ELF_RELA
  46         default y
  47         help
  48           The Itanium Processor Family is Intel's 64-bit successor to
  49           the 32-bit X86 line.  The IA-64 Linux project has a home
  50           page at <http://www.linuxia64.org/> and a mailing list at
  51           <linux-ia64@vger.kernel.org>.
  52
  53 config 64BIT
  54         bool
  55         select ATA_NONSTANDARD if ATA
  56         default y
  57
  58 config ZONE_DMA
  59         def_bool y
  60         depends on !IA64_SGI_SN2
  61
  62 config QUICKLIST
  63         bool
  64         default y
  65
  66 config MMU
  67         bool
  68         default y
  69
  70 config ARCH_DMA_ADDR_T_64BIT
  71         def_bool y
  72
  73 config NEED_DMA_MAP_STATE
  74         def_bool y
  75
  76 config NEED_SG_DMA_LENGTH
  77         def_bool y
  78
  79 config SWIOTLB
  80        bool
  81
  82 config STACKTRACE_SUPPORT
  83         def_bool y
  84
  85 config GENERIC_LOCKBREAK
  86         def_bool n
  87
  88 config RWSEM_XCHGADD_ALGORITHM
  89         bool
  90         default y
  91
  92 config HUGETLB_PAGE_SIZE_VARIABLE
  93         bool
  94         depends on HUGETLB_PAGE
  95         default y
  96
  97 config GENERIC_CALIBRATE_DELAY
  98         bool
  99         default y
 100
 101 config HAVE_SETUP_PER_CPU_AREA
 102         def_bool y
 103
 104 config DMI
 105         bool
 106         default y
 107
 108 config EFI
 109         bool
 110         select UCS2_STRING
 111         default y
 112
 113 config SCHED_OMIT_FRAME_POINTER
 114         bool
 115         default y
 116
 117 config IA64_UNCACHED_ALLOCATOR
 118         bool
 119         select GENERIC_ALLOCATOR
 120
 121 config ARCH_USES_PG_UNCACHED
 122         def_bool y
 123         depends on IA64_UNCACHED_ALLOCATOR
 124
 125 config AUDIT_ARCH
 126         bool
 127         default y
 128
 129 menuconfig PARAVIRT_GUEST
 130         bool "Paravirtualized guest support"
 131         depends on BROKEN
 132         help
 133           Say Y here to get to see options related to running Linux under
 134           various hypervisors.  This option alone does not add any kernel code.
 135
 136           If you say N, all options in this submenu will be skipped and disabled.
 137
 138 if PARAVIRT_GUEST
 139
 140 config PARAVIRT
 141         bool "Enable paravirtualization code"
 142         depends on PARAVIRT_GUEST
 143         default y
 144         help
 145           This changes the kernel so it can modify itself when it is run
 146           under a hypervisor, potentially improving performance significantly
 147           over full virtualization.  However, when run without a hypervisor
 148           the kernel is theoretically slower and slightly larger.
 149
 150
 151 source "arch/ia64/xen/Kconfig"
 152
 153 endif
 154
 155 choice
 156         prompt "System type"
 157         default IA64_GENERIC
 158
 159 config IA64_GENERIC
 160         bool "generic"
 161         select NUMA
 162         select ACPI_NUMA
 163         select SWIOTLB
 164         select PCI_MSI
 165         help
 166           This selects the system type of your hardware.  A "generic" kernel
 167           will run on any supported IA-64 system.  However, if you configure
 168           a kernel for your specific system, it will be faster and smaller.
 169
 170           generic               For any supported IA-64 system
 171           DIG-compliant         For DIG ("Developer's Interface Guide") compliant systems
 172           DIG+Intel+IOMMU       For DIG systems with Intel IOMMU
 173           HP-zx1/sx1000         For HP systems
 174           HP-zx1/sx1000+swiotlb For HP systems with (broken) DMA-constrained devices.
 175           SGI-SN2               For SGI Altix systems
 176           SGI-UV                For SGI UV systems
 177           Ski-simulator         For the HP simulator <http://www.hpl.hp.com/research/linux/ski/>
 178           Xen-domU              For xen domU system
 179
 180           If you don't know what to do, choose "generic".
 181
 182 config IA64_DIG
 183         bool "DIG-compliant"
 184         select SWIOTLB
 185
 186 config IA64_DIG_VTD
 187         bool "DIG+Intel+IOMMU"
 188         select INTEL_IOMMU
 189         select PCI_MSI
 190
 191 config IA64_HP_ZX1
 192         bool "HP-zx1/sx1000"
 193         help
 194           Build a kernel that runs on HP zx1 and sx1000 systems.  This adds
 195           support for the HP I/O MMU.
 196
 197 config IA64_HP_ZX1_SWIOTLB
 198         bool "HP-zx1/sx1000 with software I/O TLB"
 199         select SWIOTLB
 200         help
 201           Build a kernel that runs on HP zx1 and sx1000 systems even when they
 202           have broken PCI devices which cannot DMA to full 32 bits.  Apart
 203           from support for the HP I/O MMU, this includes support for the software
 204           I/O TLB, which allows supporting the broken devices at the expense of
 205           wasting some kernel memory (about 2MB by default).
 206
 207 config IA64_SGI_SN2
 208         bool "SGI-SN2"
 209         select NUMA
 210         select ACPI_NUMA
 211         help
 212           Selecting this option will optimize the kernel for use on sn2 based
 213           systems, but the resulting kernel binary will not run on other
 214           types of ia64 systems.  If you have an SGI Altix system, it's safe
 215           to select this option.  If in doubt, select ia64 generic support
 216           instead.
 217
 218 config IA64_SGI_UV
 219         bool "SGI-UV"
 220         select NUMA
 221         select ACPI_NUMA
 222         select SWIOTLB
 223         help
 224           Selecting this option will optimize the kernel for use on UV based
 225           systems, but the resulting kernel binary will not run on other
 226           types of ia64 systems.  If you have an SGI UV system, it's safe
 227           to select this option.  If in doubt, select ia64 generic support
 228           instead.
 229
 230 config IA64_HP_SIM
 231         bool "Ski-simulator"
 232         select SWIOTLB
 233
 234 config IA64_XEN_GUEST
 235         bool "Xen guest"
 236         select SWIOTLB
 237         depends on XEN
 238         help
 239           Build a kernel that runs on Xen guest domain. At this moment only
 240           16KB page size in supported.
 241
 242 endchoice
 243
 244 choice
 245         prompt "Processor type"
 246         default ITANIUM
 247
 248 config ITANIUM
 249         bool "Itanium"
 250         help
 251           Select your IA-64 processor type.  The default is Itanium.
 252           This choice is safe for all IA-64 systems, but may not perform
 253           optimally on systems with, say, Itanium 2 or newer processors.
 254
 255 config MCKINLEY
 256         bool "Itanium 2"
 257         help
 258           Select this to configure for an Itanium 2 (McKinley) processor.
 259
 260 endchoice
 261
 262 choice
 263         prompt "Kernel page size"
 264         default IA64_PAGE_SIZE_16KB
 265
 266 config IA64_PAGE_SIZE_4KB
 267         bool "4KB"
 268         help
 269           This lets you select the page size of the kernel.  For best IA-64
 270           performance, a page size of 8KB or 16KB is recommended.  For best
 271           IA-32 compatibility, a page size of 4KB should be selected (the vast
 272           majority of IA-32 binaries work perfectly fine with a larger page
 273           size).  For Itanium 2 or newer systems, a page size of 64KB can also
 274           be selected.
 275
 276           4KB                For best IA-32 compatibility
 277           8KB                For best IA-64 performance
 278           16KB               For best IA-64 performance
 279           64KB               Requires Itanium 2 or newer processor.
 280
 281           If you don't know what to do, choose 16KB.
 282
 283 config IA64_PAGE_SIZE_8KB
 284         bool "8KB"
 285
 286 config IA64_PAGE_SIZE_16KB
 287         bool "16KB"
 288
 289 config IA64_PAGE_SIZE_64KB
 290         depends on !ITANIUM
 291         bool "64KB"
 292
 293 endchoice
 294
 295 choice
 296         prompt "Page Table Levels"
 297         default PGTABLE_3
 298
 299 config PGTABLE_3
 300         bool "3 Levels"
 301
 302 config PGTABLE_4
 303         depends on !IA64_PAGE_SIZE_64KB
 304         bool "4 Levels"
 305
 306 endchoice
 307
 308 if IA64_HP_SIM
 309 config HZ
 310         default 32
 311 endif
 312
 313 if !IA64_HP_SIM
 314 source kernel/Kconfig.hz
 315 endif
 316
 317 config IA64_BRL_EMU
 318         bool
 319         depends on ITANIUM
 320         default y
 321
 322 # align cache-sensitive data to 128 bytes
 323 config IA64_L1_CACHE_SHIFT
 324         int
 325         default "7" if MCKINLEY
 326         default "6" if ITANIUM
 327
 328 config IA64_CYCLONE
 329         bool "Cyclone (EXA) Time Source support"
 330         help
 331           Say Y here to enable support for IBM EXA Cyclone time source.
 332           If you're unsure, answer N.
 333
 334 config IOSAPIC
 335         bool
 336         depends on !IA64_HP_SIM
 337         default y
 338
 339 config FORCE_MAX_ZONEORDER
 340         int "MAX_ORDER (11 - 17)"  if !HUGETLB_PAGE
 341         range 11 17  if !HUGETLB_PAGE
 342         default "17" if HUGETLB_PAGE
 343         default "11"
 344
 345 config SMP
 346         bool "Symmetric multi-processing support"
 347         select USE_GENERIC_SMP_HELPERS
 348         help
 349           This enables support for systems with more than one CPU. If you have
 350           a system with only one CPU, say N.  If you have a system with more
 351           than one CPU, say Y.
 352
 353           If you say N here, the kernel will run on single and multiprocessor
 354           systems, but will use only one CPU of a multiprocessor system.  If
 355           you say Y here, the kernel will run on many, but not all,
 356           single processor systems.  On a single processor system, the kernel
 357           will run faster if you say N here.
 358
 359           See also the SMP-HOWTO available at
 360           <http://www.tldp.org/docs.html#howto>.
 361
 362           If you don't know what to do here, say N.
 363
 364 config NR_CPUS
 365         int "Maximum number of CPUs (2-4096)"
 366         range 2 4096
 367         depends on SMP
 368         default "4096"
 369         help
 370           You should set this to the number of CPUs in your system, but
 371           keep in mind that a kernel compiled for, e.g., 2 CPUs will boot but
 372           only use 2 CPUs on a >2 CPU system.  Setting this to a value larger
 373           than 64 will cause the use of a CPU mask array, causing a small
 374           performance hit.
 375
 376 config HOTPLUG_CPU
 377         bool "Support for hot-pluggable CPUs"
 378         depends on SMP
 379         select HOTPLUG
 380         default n
 381         ---help---
 382           Say Y here to experiment with turning CPUs off and on.  CPUs
 383           can be controlled through /sys/devices/system/cpu/cpu#.
 384           Say N if you want to disable CPU hotplug.
 385
 386 config ARCH_ENABLE_MEMORY_HOTPLUG
 387         def_bool y
 388
 389 config ARCH_ENABLE_MEMORY_HOTREMOVE
 390         def_bool y
 391
 392 config SCHED_SMT
 393         bool "SMT scheduler support"
 394         depends on SMP
 395         help
 396           Improves the CPU scheduler's decision making when dealing with
 397           Intel IA64 chips with MultiThreading at a cost of slightly increased
 398           overhead in some places. If unsure say N here.
 399
 400 config PERMIT_BSP_REMOVE
 401         bool "Support removal of Bootstrap Processor"
 402         depends on HOTPLUG_CPU
 403         default n
 404         ---help---
 405         Say Y here if your platform SAL will support removal of BSP with HOTPLUG_CPU
 406         support.
 407
 408 config FORCE_CPEI_RETARGET
 409         bool "Force assumption that CPEI can be re-targeted"
 410         depends on PERMIT_BSP_REMOVE
 411         default n
 412         ---help---
 413         Say Y if you need to force the assumption that CPEI can be re-targeted to
 414         any cpu in the system. This hint is available via ACPI 3.0 specifications.
 415         Tiger4 systems are capable of re-directing CPEI to any CPU other than BSP.
 416         This option it useful to enable this feature on older BIOS's as well.
 417         You can also enable this by using boot command line option force_cpei=1.
 418
 419 source "kernel/Kconfig.preempt"
 420
 421 source "mm/Kconfig"
 422
 423 config ARCH_SELECT_MEMORY_MODEL
 424         def_bool y
 425
 426 config ARCH_DISCONTIGMEM_ENABLE
 427         def_bool y
 428         help
 429           Say Y to support efficient handling of discontiguous physical memory,
 430           for architectures which are either NUMA (Non-Uniform Memory Access)
 431           or have huge holes in the physical address space for other reasons.
 432           See <file:Documentation/vm/numa> for more.
 433
 434 config ARCH_FLATMEM_ENABLE
 435         def_bool y
 436
 437 config ARCH_SPARSEMEM_ENABLE
 438         def_bool y
 439         depends on ARCH_DISCONTIGMEM_ENABLE
 440         select SPARSEMEM_VMEMMAP_ENABLE
 441
 442 config ARCH_DISCONTIGMEM_DEFAULT
 443         def_bool y if (IA64_SGI_SN2 || IA64_GENERIC || IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB)
 444         depends on ARCH_DISCONTIGMEM_ENABLE
 445
 446 config NUMA
 447         bool "NUMA support"
 448         depends on !IA64_HP_SIM && !FLATMEM
 449         default y if IA64_SGI_SN2
 450         select ACPI_NUMA if ACPI
 451         help
 452           Say Y to compile the kernel to support NUMA (Non-Uniform Memory
 453           Access).  This option is for configuring high-end multiprocessor
 454           server systems.  If in doubt, say N.
 455
 456 config NODES_SHIFT
 457         int "Max num nodes shift(3-10)"
 458         range 3 10
 459         default "10"
 460         depends on NEED_MULTIPLE_NODES
 461         help
 462           This option specifies the maximum number of nodes in your SSI system.
 463           MAX_NUMNODES will be 2^(This value).
 464           If in doubt, use the default.
 465
 466 # VIRTUAL_MEM_MAP and FLAT_NODE_MEM_MAP are functionally equivalent.
 467 # VIRTUAL_MEM_MAP has been retained for historical reasons.
 468 config VIRTUAL_MEM_MAP
 469         bool "Virtual mem map"
 470         depends on !SPARSEMEM
 471         default y if !IA64_HP_SIM
 472         help
 473           Say Y to compile the kernel with support for a virtual mem map.
 474           This code also only takes effect if a memory hole of greater than
 475           1 Gb is found during boot.  You must turn this option on if you
 476           require the DISCONTIGMEM option for your machine. If you are
 477           unsure, say Y.
 478
 479 config HOLES_IN_ZONE
 480         bool
 481         default y if VIRTUAL_MEM_MAP
 482
 483 config HAVE_ARCH_EARLY_PFN_TO_NID
 484         def_bool NUMA && SPARSEMEM
 485
 486 config HAVE_ARCH_NODEDATA_EXTENSION
 487         def_bool y
 488         depends on NUMA
 489
 490 config USE_PERCPU_NUMA_NODE_ID
 491         def_bool y
 492         depends on NUMA
 493
 494 config HAVE_MEMORYLESS_NODES
 495         def_bool NUMA
 496
 497 config ARCH_PROC_KCORE_TEXT
 498         def_bool y
 499         depends on PROC_KCORE
 500
 501 config IA64_MCA_RECOVERY
 502         tristate "MCA recovery from errors other than TLB."
 503
 504 config PERFMON
 505         bool "Performance monitor support"
 506         help
 507           Selects whether support for the IA-64 performance monitor hardware
 508           is included in the kernel.  This makes some kernel data-structures a
 509           little bigger and slows down execution a bit, but it is generally
 510           a good idea to turn this on.  If you're unsure, say Y.
 511
 512 config IA64_PALINFO
 513         tristate "/proc/pal support"
 514         help
 515           If you say Y here, you are able to get PAL (Processor Abstraction
 516           Layer) information in /proc/pal.  This contains useful information
 517           about the processors in your systems, such as cache and TLB sizes
 518           and the PAL firmware version in use.
 519
 520           To use this option, you have to ensure that the "/proc file system
 521           support" (CONFIG_PROC_FS) is enabled, too.
 522
 523 config IA64_MC_ERR_INJECT
 524         tristate "MC error injection support"
 525         help
 526           Adds support for MC error injection. If enabled, the kernel
 527           will provide a sysfs interface for user applications to
 528           call MC error injection PAL procedures to inject various errors.
 529           This is a useful tool for MCA testing.
 530
 531           If you're unsure, do not select this option.
 532
 533 config SGI_SN
 534         def_bool y if (IA64_SGI_SN2 || IA64_GENERIC)
 535
 536 config IA64_ESI
 537         bool "ESI (Extensible SAL Interface) support"
 538         help
 539           If you say Y here, support is built into the kernel to
 540           make ESI calls.  ESI calls are used to support vendor-specific
 541           firmware extensions, such as the ability to inject memory-errors
 542           for test-purposes.  If you're unsure, say N.
 543
 544 config IA64_HP_AML_NFW
 545         bool "Support ACPI AML calls to native firmware"
 546         help
 547           This driver installs a global ACPI Operation Region handler for
 548           region 0xA1.  AML methods can use this OpRegion to call arbitrary
 549           native firmware functions.  The driver installs the OpRegion
 550           handler if there is an HPQ5001 device or if the user supplies
 551           the "force" module parameter, e.g., with the "aml_nfw.force"
 552           kernel command line option.
 553
 554 source "drivers/sn/Kconfig"
 555
 556 config KEXEC
 557         bool "kexec system call"
 558         depends on !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
 559         help
 560           kexec is a system call that implements the ability to shutdown your
 561           current kernel, and to start another kernel.  It is like a reboot
 562           but it is independent of the system firmware.   And like a reboot
 563           you can start any kernel with it, not just Linux.
 564
 565           The name comes from the similarity to the exec system call.
 566
 567           It is an ongoing process to be certain the hardware in a machine
 568           is properly shutdown, so do not be surprised if this code does not
 569           initially work for you.  It may help to enable device hotplugging
 570           support.  As of this writing the exact hardware interface is
 571           strongly in flux, so no good recommendation can be made.
 572
 573 config CRASH_DUMP
 574           bool "kernel crash dumps"
 575           depends on IA64_MCA_RECOVERY && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
 576           help
 577             Generate crash dump after being started by kexec.
 578
 579 source "drivers/firmware/Kconfig"
 580
 581 source "fs/Kconfig.binfmt"
 582
 583 endmenu
 584
 585 menu "Power management and ACPI options"
 586
 587 source "kernel/power/Kconfig"
 588
 589 source "drivers/acpi/Kconfig"
 590
 591 if PM
 592 menu "CPU Frequency scaling"
 593 source "drivers/cpufreq/Kconfig"
 594 endmenu
 595 endif
 596
 597 endmenu
 598
 599 if !IA64_HP_SIM
 600
 601 menu "Bus options (PCI, PCMCIA)"
 602
 603 config PCI
 604         bool "PCI support"
 605         help
 606           Real IA-64 machines all have PCI/PCI-X/PCI Express busses.  Say Y
 607           here unless you are using a simulator without PCI support.
 608
 609 config PCI_DOMAINS
 610         def_bool PCI
 611
 612 config PCI_SYSCALL
 613         def_bool PCI
 614
 615 source "drivers/pci/pcie/Kconfig"
 616
 617 source "drivers/pci/Kconfig"
 618
 619 source "drivers/pci/hotplug/Kconfig"
 620
 621 source "drivers/pcmcia/Kconfig"
 622
 623 endmenu
 624
 625 endif
 626
 627 source "net/Kconfig"
 628
 629 source "drivers/Kconfig"
 630
 631 source "arch/ia64/hp/sim/Kconfig"
 632
 633 config MSPEC
 634         tristate "Memory special operations driver"
 635         depends on IA64
 636         select IA64_UNCACHED_ALLOCATOR
 637         help
 638           If you have an ia64 and you want to enable memory special
 639           operations support (formerly known as fetchop), say Y here,
 640           otherwise say N.
 641
 642 source "fs/Kconfig"
 643
 644 source "arch/ia64/Kconfig.debug"
 645
 646 source "security/Kconfig"
 647
 648 source "crypto/Kconfig"
 649
 650 source "arch/ia64/kvm/Kconfig"
 651
 652 source "lib/Kconfig"
 653
 654 config IOMMU_HELPER
 655         def_bool (IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB || IA64_GENERIC || SWIOTLB)