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