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 ARCH_DISCARD_MEMBLOCK
  29         select GENERIC_IRQ_PROBE
  30         select GENERIC_PENDING_IRQ if SMP
  31         select IRQ_PER_CPU
  32         select GENERIC_IRQ_SHOW
  33         select ARCH_WANT_OPTIONAL_GPIOLIB
  34         select ARCH_HAVE_NMI_SAFE_CMPXCHG
  35         select GENERIC_IOMAP
  36         default y
  37         help
  38           The Itanium Processor Family is Intel's 64-bit successor to
  39           the 32-bit X86 line.  The IA-64 Linux project has a home
  40           page at <http://www.linuxia64.org/> and a mailing list at
  41           <linux-ia64@vger.kernel.org>.
  42
  43 config 64BIT
  44         bool
  45         select ATA_NONSTANDARD if ATA
  46         default y
  47
  48 config ZONE_DMA
  49         def_bool y
  50         depends on !IA64_SGI_SN2
  51
  52 config QUICKLIST
  53         bool
  54         default y
  55
  56 config MMU
  57         bool
  58         default y
  59
  60 config ARCH_DMA_ADDR_T_64BIT
  61         def_bool y
  62
  63 config NEED_DMA_MAP_STATE
  64         def_bool y
  65
  66 config NEED_SG_DMA_LENGTH
  67         def_bool y
  68
  69 config SWIOTLB
  70        bool
  71
  72 config STACKTRACE_SUPPORT
  73         def_bool y
  74
  75 config GENERIC_LOCKBREAK
  76         def_bool n
  77
  78 config RWSEM_XCHGADD_ALGORITHM
  79         bool
  80         default y
  81
  82 config HUGETLB_PAGE_SIZE_VARIABLE
  83         bool
  84         depends on HUGETLB_PAGE
  85         default y
  86
  87 config GENERIC_CALIBRATE_DELAY
  88         bool
  89         default y
  90
  91 config GENERIC_TIME_VSYSCALL
  92         bool
  93         default y
  94
  95 config HAVE_SETUP_PER_CPU_AREA
  96         def_bool y
  97
  98 config GENERIC_GPIO
  99         bool
 100
 101 config DMI
 102         bool
 103         default y
 104
 105 config EFI
 106         bool
 107         default y
 108
 109 config ARCH_CLOCKSOURCE_DATA
 110         def_bool y
 111
 112 config SCHED_OMIT_FRAME_POINTER
 113         bool
 114         default y
 115
 116 config IA64_UNCACHED_ALLOCATOR
 117         bool
 118         select GENERIC_ALLOCATOR
 119
 120 config ARCH_USES_PG_UNCACHED
 121         def_bool y
 122         depends on IA64_UNCACHED_ALLOCATOR
 123
 124 config AUDIT_ARCH
 125         bool
 126         default y
 127
 128 menuconfig PARAVIRT_GUEST
 129         bool "Paravirtualized guest support"
 130         help
 131           Say Y here to get to see options related to running Linux under
 132           various hypervisors.  This option alone does not add any kernel code.
 133
 134           If you say N, all options in this submenu will be skipped and disabled.
 135
 136 if PARAVIRT_GUEST
 137
 138 config PARAVIRT
 139         bool "Enable paravirtualization code"
 140         depends on PARAVIRT_GUEST
 141         default y
 142         bool
 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 DMAR
 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 VIRT_CPU_ACCOUNTING
 346         bool "Deterministic task and CPU time accounting"
 347         default n
 348         help
 349           Select this option to enable more accurate task and CPU time
 350           accounting.  This is done by reading a CPU counter on each
 351           kernel entry and exit and on transitions within the kernel
 352           between system, softirq and hardirq state, so there is a
 353           small performance impact.
 354           If in doubt, say N here.
 355
 356 config SMP
 357         bool "Symmetric multi-processing support"
 358         select USE_GENERIC_SMP_HELPERS
 359         help
 360           This enables support for systems with more than one CPU. If you have
 361           a system with only one CPU, say N.  If you have a system with more
 362           than one CPU, say Y.
 363
 364           If you say N here, the kernel will run on single and multiprocessor
 365           systems, but will use only one CPU of a multiprocessor system.  If
 366           you say Y here, the kernel will run on many, but not all,
 367           single processor systems.  On a single processor system, the kernel
 368           will run faster if you say N here.
 369
 370           See also the SMP-HOWTO available at
 371           <http://www.tldp.org/docs.html#howto>.
 372
 373           If you don't know what to do here, say N.
 374
 375 config NR_CPUS
 376         int "Maximum number of CPUs (2-4096)"
 377         range 2 4096
 378         depends on SMP
 379         default "4096"
 380         help
 381           You should set this to the number of CPUs in your system, but
 382           keep in mind that a kernel compiled for, e.g., 2 CPUs will boot but
 383           only use 2 CPUs on a >2 CPU system.  Setting this to a value larger
 384           than 64 will cause the use of a CPU mask array, causing a small
 385           performance hit.
 386
 387 config HOTPLUG_CPU
 388         bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
 389         depends on SMP && EXPERIMENTAL
 390         select HOTPLUG
 391         default n
 392         ---help---
 393           Say Y here to experiment with turning CPUs off and on.  CPUs
 394           can be controlled through /sys/devices/system/cpu/cpu#.
 395           Say N if you want to disable CPU hotplug.
 396
 397 config ARCH_ENABLE_MEMORY_HOTPLUG
 398         def_bool y
 399
 400 config ARCH_ENABLE_MEMORY_HOTREMOVE
 401         def_bool y
 402
 403 config SCHED_SMT
 404         bool "SMT scheduler support"
 405         depends on SMP
 406         help
 407           Improves the CPU scheduler's decision making when dealing with
 408           Intel IA64 chips with MultiThreading at a cost of slightly increased
 409           overhead in some places. If unsure say N here.
 410
 411 config PERMIT_BSP_REMOVE
 412         bool "Support removal of Bootstrap Processor"
 413         depends on HOTPLUG_CPU
 414         default n
 415         ---help---
 416         Say Y here if your platform SAL will support removal of BSP with HOTPLUG_CPU
 417         support.
 418
 419 config FORCE_CPEI_RETARGET
 420         bool "Force assumption that CPEI can be re-targeted"
 421         depends on PERMIT_BSP_REMOVE
 422         default n
 423         ---help---
 424         Say Y if you need to force the assumption that CPEI can be re-targeted to
 425         any cpu in the system. This hint is available via ACPI 3.0 specifications.
 426         Tiger4 systems are capable of re-directing CPEI to any CPU other than BSP.
 427         This option it useful to enable this feature on older BIOS's as well.
 428         You can also enable this by using boot command line option force_cpei=1.
 429
 430 source "kernel/Kconfig.preempt"
 431
 432 source "mm/Kconfig"
 433
 434 config ARCH_SELECT_MEMORY_MODEL
 435         def_bool y
 436
 437 config ARCH_DISCONTIGMEM_ENABLE
 438         def_bool y
 439         help
 440           Say Y to support efficient handling of discontiguous physical memory,
 441           for architectures which are either NUMA (Non-Uniform Memory Access)
 442           or have huge holes in the physical address space for other reasons.
 443           See <file:Documentation/vm/numa> for more.
 444
 445 config ARCH_FLATMEM_ENABLE
 446         def_bool y
 447
 448 config ARCH_SPARSEMEM_ENABLE
 449         def_bool y
 450         depends on ARCH_DISCONTIGMEM_ENABLE
 451         select SPARSEMEM_VMEMMAP_ENABLE
 452
 453 config ARCH_DISCONTIGMEM_DEFAULT
 454         def_bool y if (IA64_SGI_SN2 || IA64_GENERIC || IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB)
 455         depends on ARCH_DISCONTIGMEM_ENABLE
 456
 457 config NUMA
 458         bool "NUMA support"
 459         depends on !IA64_HP_SIM && !FLATMEM
 460         default y if IA64_SGI_SN2
 461         select ACPI_NUMA if ACPI
 462         help
 463           Say Y to compile the kernel to support NUMA (Non-Uniform Memory
 464           Access).  This option is for configuring high-end multiprocessor
 465           server systems.  If in doubt, say N.
 466
 467 config NODES_SHIFT
 468         int "Max num nodes shift(3-10)"
 469         range 3 10
 470         default "10"
 471         depends on NEED_MULTIPLE_NODES
 472         help
 473           This option specifies the maximum number of nodes in your SSI system.
 474           MAX_NUMNODES will be 2^(This value).
 475           If in doubt, use the default.
 476
 477 # VIRTUAL_MEM_MAP and FLAT_NODE_MEM_MAP are functionally equivalent.
 478 # VIRTUAL_MEM_MAP has been retained for historical reasons.
 479 config VIRTUAL_MEM_MAP
 480         bool "Virtual mem map"
 481         depends on !SPARSEMEM
 482         default y if !IA64_HP_SIM
 483         help
 484           Say Y to compile the kernel with support for a virtual mem map.
 485           This code also only takes effect if a memory hole of greater than
 486           1 Gb is found during boot.  You must turn this option on if you
 487           require the DISCONTIGMEM option for your machine. If you are
 488           unsure, say Y.
 489
 490 config HOLES_IN_ZONE
 491         bool
 492         default y if VIRTUAL_MEM_MAP
 493
 494 config HAVE_ARCH_EARLY_PFN_TO_NID
 495         def_bool NUMA && SPARSEMEM
 496
 497 config HAVE_ARCH_NODEDATA_EXTENSION
 498         def_bool y
 499         depends on NUMA
 500
 501 config USE_PERCPU_NUMA_NODE_ID
 502         def_bool y
 503         depends on NUMA
 504
 505 config HAVE_MEMORYLESS_NODES
 506         def_bool NUMA
 507
 508 config ARCH_PROC_KCORE_TEXT
 509         def_bool y
 510         depends on PROC_KCORE
 511
 512 config IA64_MCA_RECOVERY
 513         tristate "MCA recovery from errors other than TLB."
 514
 515 config PERFMON
 516         bool "Performance monitor support"
 517         help
 518           Selects whether support for the IA-64 performance monitor hardware
 519           is included in the kernel.  This makes some kernel data-structures a
 520           little bigger and slows down execution a bit, but it is generally
 521           a good idea to turn this on.  If you're unsure, say Y.
 522
 523 config IA64_PALINFO
 524         tristate "/proc/pal support"
 525         help
 526           If you say Y here, you are able to get PAL (Processor Abstraction
 527           Layer) information in /proc/pal.  This contains useful information
 528           about the processors in your systems, such as cache and TLB sizes
 529           and the PAL firmware version in use.
 530
 531           To use this option, you have to ensure that the "/proc file system
 532           support" (CONFIG_PROC_FS) is enabled, too.
 533
 534 config IA64_MC_ERR_INJECT
 535         tristate "MC error injection support"
 536         help
 537           Adds support for MC error injection. If enabled, the kernel
 538           will provide a sysfs interface for user applications to
 539           call MC error injection PAL procedures to inject various errors.
 540           This is a useful tool for MCA testing.
 541
 542           If you're unsure, do not select this option.
 543
 544 config SGI_SN
 545         def_bool y if (IA64_SGI_SN2 || IA64_GENERIC)
 546
 547 config IA64_ESI
 548         bool "ESI (Extensible SAL Interface) support"
 549         help
 550           If you say Y here, support is built into the kernel to
 551           make ESI calls.  ESI calls are used to support vendor-specific
 552           firmware extensions, such as the ability to inject memory-errors
 553           for test-purposes.  If you're unsure, say N.
 554
 555 config IA64_HP_AML_NFW
 556         bool "Support ACPI AML calls to native firmware"
 557         help
 558           This driver installs a global ACPI Operation Region handler for
 559           region 0xA1.  AML methods can use this OpRegion to call arbitrary
 560           native firmware functions.  The driver installs the OpRegion
 561           handler if there is an HPQ5001 device or if the user supplies
 562           the "force" module parameter, e.g., with the "aml_nfw.force"
 563           kernel command line option.
 564
 565 source "drivers/sn/Kconfig"
 566
 567 config KEXEC
 568         bool "kexec system call (EXPERIMENTAL)"
 569         depends on EXPERIMENTAL && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
 570         help
 571           kexec is a system call that implements the ability to shutdown your
 572           current kernel, and to start another kernel.  It is like a reboot
 573           but it is independent of the system firmware.   And like a reboot
 574           you can start any kernel with it, not just Linux.
 575
 576           The name comes from the similarity to the exec system call.
 577
 578           It is an ongoing process to be certain the hardware in a machine
 579           is properly shutdown, so do not be surprised if this code does not
 580           initially work for you.  It may help to enable device hotplugging
 581           support.  As of this writing the exact hardware interface is
 582           strongly in flux, so no good recommendation can be made.
 583
 584 config CRASH_DUMP
 585           bool "kernel crash dumps"
 586           depends on IA64_MCA_RECOVERY && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
 587           help
 588             Generate crash dump after being started by kexec.
 589
 590 source "drivers/firmware/Kconfig"
 591
 592 source "fs/Kconfig.binfmt"
 593
 594 endmenu
 595
 596 menu "Power management and ACPI options"
 597
 598 source "kernel/power/Kconfig"
 599
 600 source "drivers/acpi/Kconfig"
 601
 602 if PM
 603
 604 source "arch/ia64/kernel/cpufreq/Kconfig"
 605
 606 endif
 607
 608 endmenu
 609
 610 if !IA64_HP_SIM
 611
 612 menu "Bus options (PCI, PCMCIA)"
 613
 614 config PCI
 615         bool "PCI support"
 616         help
 617           Real IA-64 machines all have PCI/PCI-X/PCI Express busses.  Say Y
 618           here unless you are using a simulator without PCI support.
 619
 620 config PCI_DOMAINS
 621         def_bool PCI
 622
 623 config PCI_SYSCALL
 624         def_bool PCI
 625
 626 source "drivers/pci/pcie/Kconfig"
 627
 628 source "drivers/pci/Kconfig"
 629
 630 source "drivers/pci/hotplug/Kconfig"
 631
 632 source "drivers/pcmcia/Kconfig"
 633
 634 endmenu
 635
 636 endif
 637
 638 source "net/Kconfig"
 639
 640 source "drivers/Kconfig"
 641
 642 source "arch/ia64/hp/sim/Kconfig"
 643
 644 config MSPEC
 645         tristate "Memory special operations driver"
 646         depends on IA64
 647         select IA64_UNCACHED_ALLOCATOR
 648         help
 649           If you have an ia64 and you want to enable memory special
 650           operations support (formerly known as fetchop), say Y here,
 651           otherwise say N.
 652
 653 source "fs/Kconfig"
 654
 655 source "arch/ia64/Kconfig.debug"
 656
 657 source "security/Kconfig"
 658
 659 source "crypto/Kconfig"
 660
 661 source "arch/ia64/kvm/Kconfig"
 662
 663 source "lib/Kconfig"
 664
 665 config IOMMU_HELPER
 666         def_bool (IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB || IA64_GENERIC || SWIOTLB)