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         select GENERIC_SMP_IDLE_THREAD
  37         select ARCH_INIT_TASK
  38         select ARCH_TASK_STRUCT_ALLOCATOR
  39         select ARCH_THREAD_INFO_ALLOCATOR
  40         select ARCH_CLOCKSOURCE_DATA
  41         select GENERIC_TIME_VSYSCALL
  42         default y
  43         help
  44           The Itanium Processor Family is Intel's 64-bit successor to
  45           the 32-bit X86 line.  The IA-64 Linux project has a home
  46           page at <http://www.linuxia64.org/> and a mailing list at
  47           <linux-ia64@vger.kernel.org>.
  48
  49 config 64BIT
  50         bool
  51         select ATA_NONSTANDARD if ATA
  52         default y
  53
  54 config ZONE_DMA
  55         def_bool y
  56         depends on !IA64_SGI_SN2
  57
  58 config QUICKLIST
  59         bool
  60         default y
  61
  62 config MMU
  63         bool
  64         default y
  65
  66 config ARCH_DMA_ADDR_T_64BIT
  67         def_bool y
  68
  69 config NEED_DMA_MAP_STATE
  70         def_bool y
  71
  72 config NEED_SG_DMA_LENGTH
  73         def_bool y
  74
  75 config SWIOTLB
  76        bool
  77
  78 config STACKTRACE_SUPPORT
  79         def_bool y
  80
  81 config GENERIC_LOCKBREAK
  82         def_bool n
  83
  84 config RWSEM_XCHGADD_ALGORITHM
  85         bool
  86         default y
  87
  88 config HUGETLB_PAGE_SIZE_VARIABLE
  89         bool
  90         depends on HUGETLB_PAGE
  91         default y
  92
  93 config GENERIC_CALIBRATE_DELAY
  94         bool
  95         default y
  96
  97 config HAVE_SETUP_PER_CPU_AREA
  98         def_bool y
  99
 100 config GENERIC_GPIO
 101         bool
 102
 103 config DMI
 104         bool
 105         default y
 106
 107 config EFI
 108         bool
 109         default y
 110
 111 config SCHED_OMIT_FRAME_POINTER
 112         bool
 113         default y
 114
 115 config IA64_UNCACHED_ALLOCATOR
 116         bool
 117         select GENERIC_ALLOCATOR
 118
 119 config ARCH_USES_PG_UNCACHED
 120         def_bool y
 121         depends on IA64_UNCACHED_ALLOCATOR
 122
 123 config AUDIT_ARCH
 124         bool
 125         default y
 126
 127 menuconfig PARAVIRT_GUEST
 128         bool "Paravirtualized guest support"
 129         help
 130           Say Y here to get to see options related to running Linux under
 131           various hypervisors.  This option alone does not add any kernel code.
 132
 133           If you say N, all options in this submenu will be skipped and disabled.
 134
 135 if PARAVIRT_GUEST
 136
 137 config PARAVIRT
 138         bool "Enable paravirtualization code"
 139         depends on PARAVIRT_GUEST
 140         default y
 141         bool
 142         default y
 143         help
 144           This changes the kernel so it can modify itself when it is run
 145           under a hypervisor, potentially improving performance significantly
 146           over full virtualization.  However, when run without a hypervisor
 147           the kernel is theoretically slower and slightly larger.
 148
 149
 150 source "arch/ia64/xen/Kconfig"
 151
 152 endif
 153
 154 choice
 155         prompt "System type"
 156         default IA64_GENERIC
 157
 158 config IA64_GENERIC
 159         bool "generic"
 160         select NUMA
 161         select ACPI_NUMA
 162         select SWIOTLB
 163         select PCI_MSI
 164         help
 165           This selects the system type of your hardware.  A "generic" kernel
 166           will run on any supported IA-64 system.  However, if you configure
 167           a kernel for your specific system, it will be faster and smaller.
 168
 169           generic               For any supported IA-64 system
 170           DIG-compliant         For DIG ("Developer's Interface Guide") compliant systems
 171           DIG+Intel+IOMMU       For DIG systems with Intel IOMMU
 172           HP-zx1/sx1000         For HP systems
 173           HP-zx1/sx1000+swiotlb For HP systems with (broken) DMA-constrained devices.
 174           SGI-SN2               For SGI Altix systems
 175           SGI-UV                For SGI UV systems
 176           Ski-simulator         For the HP simulator <http://www.hpl.hp.com/research/linux/ski/>
 177           Xen-domU              For xen domU system
 178
 179           If you don't know what to do, choose "generic".
 180
 181 config IA64_DIG
 182         bool "DIG-compliant"
 183         select SWIOTLB
 184
 185 config IA64_DIG_VTD
 186         bool "DIG+Intel+IOMMU"
 187         select DMAR
 188         select PCI_MSI
 189
 190 config IA64_HP_ZX1
 191         bool "HP-zx1/sx1000"
 192         help
 193           Build a kernel that runs on HP zx1 and sx1000 systems.  This adds
 194           support for the HP I/O MMU.
 195
 196 config IA64_HP_ZX1_SWIOTLB
 197         bool "HP-zx1/sx1000 with software I/O TLB"
 198         select SWIOTLB
 199         help
 200           Build a kernel that runs on HP zx1 and sx1000 systems even when they
 201           have broken PCI devices which cannot DMA to full 32 bits.  Apart
 202           from support for the HP I/O MMU, this includes support for the software
 203           I/O TLB, which allows supporting the broken devices at the expense of
 204           wasting some kernel memory (about 2MB by default).
 205
 206 config IA64_SGI_SN2
 207         bool "SGI-SN2"
 208         select NUMA
 209         select ACPI_NUMA
 210         help
 211           Selecting this option will optimize the kernel for use on sn2 based
 212           systems, but the resulting kernel binary will not run on other
 213           types of ia64 systems.  If you have an SGI Altix system, it's safe
 214           to select this option.  If in doubt, select ia64 generic support
 215           instead.
 216
 217 config IA64_SGI_UV
 218         bool "SGI-UV"
 219         select NUMA
 220         select ACPI_NUMA
 221         select SWIOTLB
 222         help
 223           Selecting this option will optimize the kernel for use on UV based
 224           systems, but the resulting kernel binary will not run on other
 225           types of ia64 systems.  If you have an SGI UV system, it's safe
 226           to select this option.  If in doubt, select ia64 generic support
 227           instead.
 228
 229 config IA64_HP_SIM
 230         bool "Ski-simulator"
 231         select SWIOTLB
 232
 233 config IA64_XEN_GUEST
 234         bool "Xen guest"
 235         select SWIOTLB
 236         depends on XEN
 237         help
 238           Build a kernel that runs on Xen guest domain. At this moment only
 239           16KB page size in supported.
 240
 241 endchoice
 242
 243 choice
 244         prompt "Processor type"
 245         default ITANIUM
 246
 247 config ITANIUM
 248         bool "Itanium"
 249         help
 250           Select your IA-64 processor type.  The default is Itanium.
 251           This choice is safe for all IA-64 systems, but may not perform
 252           optimally on systems with, say, Itanium 2 or newer processors.
 253
 254 config MCKINLEY
 255         bool "Itanium 2"
 256         help
 257           Select this to configure for an Itanium 2 (McKinley) processor.
 258
 259 endchoice
 260
 261 choice
 262         prompt "Kernel page size"
 263         default IA64_PAGE_SIZE_16KB
 264
 265 config IA64_PAGE_SIZE_4KB
 266         bool "4KB"
 267         help
 268           This lets you select the page size of the kernel.  For best IA-64
 269           performance, a page size of 8KB or 16KB is recommended.  For best
 270           IA-32 compatibility, a page size of 4KB should be selected (the vast
 271           majority of IA-32 binaries work perfectly fine with a larger page
 272           size).  For Itanium 2 or newer systems, a page size of 64KB can also
 273           be selected.
 274
 275           4KB                For best IA-32 compatibility
 276           8KB                For best IA-64 performance
 277           16KB               For best IA-64 performance
 278           64KB               Requires Itanium 2 or newer processor.
 279
 280           If you don't know what to do, choose 16KB.
 281
 282 config IA64_PAGE_SIZE_8KB
 283         bool "8KB"
 284
 285 config IA64_PAGE_SIZE_16KB
 286         bool "16KB"
 287
 288 config IA64_PAGE_SIZE_64KB
 289         depends on !ITANIUM
 290         bool "64KB"
 291
 292 endchoice
 293
 294 choice
 295         prompt "Page Table Levels"
 296         default PGTABLE_3
 297
 298 config PGTABLE_3
 299         bool "3 Levels"
 300
 301 config PGTABLE_4
 302         depends on !IA64_PAGE_SIZE_64KB
 303         bool "4 Levels"
 304
 305 endchoice
 306
 307 if IA64_HP_SIM
 308 config HZ
 309         default 32
 310 endif
 311
 312 if !IA64_HP_SIM
 313 source kernel/Kconfig.hz
 314 endif
 315
 316 config IA64_BRL_EMU
 317         bool
 318         depends on ITANIUM
 319         default y
 320
 321 # align cache-sensitive data to 128 bytes
 322 config IA64_L1_CACHE_SHIFT
 323         int
 324         default "7" if MCKINLEY
 325         default "6" if ITANIUM
 326
 327 config IA64_CYCLONE
 328         bool "Cyclone (EXA) Time Source support"
 329         help
 330           Say Y here to enable support for IBM EXA Cyclone time source.
 331           If you're unsure, answer N.
 332
 333 config IOSAPIC
 334         bool
 335         depends on !IA64_HP_SIM
 336         default y
 337
 338 config FORCE_MAX_ZONEORDER
 339         int "MAX_ORDER (11 - 17)"  if !HUGETLB_PAGE
 340         range 11 17  if !HUGETLB_PAGE
 341         default "17" if HUGETLB_PAGE
 342         default "11"
 343
 344 config VIRT_CPU_ACCOUNTING
 345         bool "Deterministic task and CPU time accounting"
 346         default n
 347         help
 348           Select this option to enable more accurate task and CPU time
 349           accounting.  This is done by reading a CPU counter on each
 350           kernel entry and exit and on transitions within the kernel
 351           between system, softirq and hardirq state, so there is a
 352           small performance impact.
 353           If in doubt, say N here.
 354
 355 config SMP
 356         bool "Symmetric multi-processing support"
 357         select USE_GENERIC_SMP_HELPERS
 358         help
 359           This enables support for systems with more than one CPU. If you have
 360           a system with only one CPU, say N.  If you have a system with more
 361           than one CPU, say Y.
 362
 363           If you say N here, the kernel will run on single and multiprocessor
 364           systems, but will use only one CPU of a multiprocessor system.  If
 365           you say Y here, the kernel will run on many, but not all,
 366           single processor systems.  On a single processor system, the kernel
 367           will run faster if you say N here.
 368
 369           See also the SMP-HOWTO available at
 370           <http://www.tldp.org/docs.html#howto>.
 371
 372           If you don't know what to do here, say N.
 373
 374 config NR_CPUS
 375         int "Maximum number of CPUs (2-4096)"
 376         range 2 4096
 377         depends on SMP
 378         default "4096"
 379         help
 380           You should set this to the number of CPUs in your system, but
 381           keep in mind that a kernel compiled for, e.g., 2 CPUs will boot but
 382           only use 2 CPUs on a >2 CPU system.  Setting this to a value larger
 383           than 64 will cause the use of a CPU mask array, causing a small
 384           performance hit.
 385
 386 config HOTPLUG_CPU
 387         bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
 388         depends on SMP && EXPERIMENTAL
 389         select HOTPLUG
 390         default n
 391         ---help---
 392           Say Y here to experiment with turning CPUs off and on.  CPUs
 393           can be controlled through /sys/devices/system/cpu/cpu#.
 394           Say N if you want to disable CPU hotplug.
 395
 396 config ARCH_ENABLE_MEMORY_HOTPLUG
 397         def_bool y
 398
 399 config ARCH_ENABLE_MEMORY_HOTREMOVE
 400         def_bool y
 401
 402 config SCHED_SMT
 403         bool "SMT scheduler support"
 404         depends on SMP
 405         help
 406           Improves the CPU scheduler's decision making when dealing with
 407           Intel IA64 chips with MultiThreading at a cost of slightly increased
 408           overhead in some places. If unsure say N here.
 409
 410 config PERMIT_BSP_REMOVE
 411         bool "Support removal of Bootstrap Processor"
 412         depends on HOTPLUG_CPU
 413         default n
 414         ---help---
 415         Say Y here if your platform SAL will support removal of BSP with HOTPLUG_CPU
 416         support.
 417
 418 config FORCE_CPEI_RETARGET
 419         bool "Force assumption that CPEI can be re-targeted"
 420         depends on PERMIT_BSP_REMOVE
 421         default n
 422         ---help---
 423         Say Y if you need to force the assumption that CPEI can be re-targeted to
 424         any cpu in the system. This hint is available via ACPI 3.0 specifications.
 425         Tiger4 systems are capable of re-directing CPEI to any CPU other than BSP.
 426         This option it useful to enable this feature on older BIOS's as well.
 427         You can also enable this by using boot command line option force_cpei=1.
 428
 429 source "kernel/Kconfig.preempt"
 430
 431 source "mm/Kconfig"
 432
 433 config ARCH_SELECT_MEMORY_MODEL
 434         def_bool y
 435
 436 config ARCH_DISCONTIGMEM_ENABLE
 437         def_bool y
 438         help
 439           Say Y to support efficient handling of discontiguous physical memory,
 440           for architectures which are either NUMA (Non-Uniform Memory Access)
 441           or have huge holes in the physical address space for other reasons.
 442           See <file:Documentation/vm/numa> for more.
 443
 444 config ARCH_FLATMEM_ENABLE
 445         def_bool y
 446
 447 config ARCH_SPARSEMEM_ENABLE
 448         def_bool y
 449         depends on ARCH_DISCONTIGMEM_ENABLE
 450         select SPARSEMEM_VMEMMAP_ENABLE
 451
 452 config ARCH_DISCONTIGMEM_DEFAULT
 453         def_bool y if (IA64_SGI_SN2 || IA64_GENERIC || IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB)
 454         depends on ARCH_DISCONTIGMEM_ENABLE
 455
 456 config NUMA
 457         bool "NUMA support"
 458         depends on !IA64_HP_SIM && !FLATMEM
 459         default y if IA64_SGI_SN2
 460         select ACPI_NUMA if ACPI
 461         help
 462           Say Y to compile the kernel to support NUMA (Non-Uniform Memory
 463           Access).  This option is for configuring high-end multiprocessor
 464           server systems.  If in doubt, say N.
 465
 466 config NODES_SHIFT
 467         int "Max num nodes shift(3-10)"
 468         range 3 10
 469         default "10"
 470         depends on NEED_MULTIPLE_NODES
 471         help
 472           This option specifies the maximum number of nodes in your SSI system.
 473           MAX_NUMNODES will be 2^(This value).
 474           If in doubt, use the default.
 475
 476 # VIRTUAL_MEM_MAP and FLAT_NODE_MEM_MAP are functionally equivalent.
 477 # VIRTUAL_MEM_MAP has been retained for historical reasons.
 478 config VIRTUAL_MEM_MAP
 479         bool "Virtual mem map"
 480         depends on !SPARSEMEM
 481         default y if !IA64_HP_SIM
 482         help
 483           Say Y to compile the kernel with support for a virtual mem map.
 484           This code also only takes effect if a memory hole of greater than
 485           1 Gb is found during boot.  You must turn this option on if you
 486           require the DISCONTIGMEM option for your machine. If you are
 487           unsure, say Y.
 488
 489 config HOLES_IN_ZONE
 490         bool
 491         default y if VIRTUAL_MEM_MAP
 492
 493 config HAVE_ARCH_EARLY_PFN_TO_NID
 494         def_bool NUMA && SPARSEMEM
 495
 496 config HAVE_ARCH_NODEDATA_EXTENSION
 497         def_bool y
 498         depends on NUMA
 499
 500 config USE_PERCPU_NUMA_NODE_ID
 501         def_bool y
 502         depends on NUMA
 503
 504 config HAVE_MEMORYLESS_NODES
 505         def_bool NUMA
 506
 507 config ARCH_PROC_KCORE_TEXT
 508         def_bool y
 509         depends on PROC_KCORE
 510
 511 config IA64_MCA_RECOVERY
 512         tristate "MCA recovery from errors other than TLB."
 513
 514 config PERFMON
 515         bool "Performance monitor support"
 516         help
 517           Selects whether support for the IA-64 performance monitor hardware
 518           is included in the kernel.  This makes some kernel data-structures a
 519           little bigger and slows down execution a bit, but it is generally
 520           a good idea to turn this on.  If you're unsure, say Y.
 521
 522 config IA64_PALINFO
 523         tristate "/proc/pal support"
 524         help
 525           If you say Y here, you are able to get PAL (Processor Abstraction
 526           Layer) information in /proc/pal.  This contains useful information
 527           about the processors in your systems, such as cache and TLB sizes
 528           and the PAL firmware version in use.
 529
 530           To use this option, you have to ensure that the "/proc file system
 531           support" (CONFIG_PROC_FS) is enabled, too.
 532
 533 config IA64_MC_ERR_INJECT
 534         tristate "MC error injection support"
 535         help
 536           Adds support for MC error injection. If enabled, the kernel
 537           will provide a sysfs interface for user applications to
 538           call MC error injection PAL procedures to inject various errors.
 539           This is a useful tool for MCA testing.
 540
 541           If you're unsure, do not select this option.
 542
 543 config SGI_SN
 544         def_bool y if (IA64_SGI_SN2 || IA64_GENERIC)
 545
 546 config IA64_ESI
 547         bool "ESI (Extensible SAL Interface) support"
 548         help
 549           If you say Y here, support is built into the kernel to
 550           make ESI calls.  ESI calls are used to support vendor-specific
 551           firmware extensions, such as the ability to inject memory-errors
 552           for test-purposes.  If you're unsure, say N.
 553
 554 config IA64_HP_AML_NFW
 555         bool "Support ACPI AML calls to native firmware"
 556         help
 557           This driver installs a global ACPI Operation Region handler for
 558           region 0xA1.  AML methods can use this OpRegion to call arbitrary
 559           native firmware functions.  The driver installs the OpRegion
 560           handler if there is an HPQ5001 device or if the user supplies
 561           the "force" module parameter, e.g., with the "aml_nfw.force"
 562           kernel command line option.
 563
 564 source "drivers/sn/Kconfig"
 565
 566 config KEXEC
 567         bool "kexec system call (EXPERIMENTAL)"
 568         depends on EXPERIMENTAL && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
 569         help
 570           kexec is a system call that implements the ability to shutdown your
 571           current kernel, and to start another kernel.  It is like a reboot
 572           but it is independent of the system firmware.   And like a reboot
 573           you can start any kernel with it, not just Linux.
 574
 575           The name comes from the similarity to the exec system call.
 576
 577           It is an ongoing process to be certain the hardware in a machine
 578           is properly shutdown, so do not be surprised if this code does not
 579           initially work for you.  It may help to enable device hotplugging
 580           support.  As of this writing the exact hardware interface is
 581           strongly in flux, so no good recommendation can be made.
 582
 583 config CRASH_DUMP
 584           bool "kernel crash dumps"
 585           depends on IA64_MCA_RECOVERY && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
 586           help
 587             Generate crash dump after being started by kexec.
 588
 589 source "drivers/firmware/Kconfig"
 590
 591 source "fs/Kconfig.binfmt"
 592
 593 endmenu
 594
 595 menu "Power management and ACPI options"
 596
 597 source "kernel/power/Kconfig"
 598
 599 source "drivers/acpi/Kconfig"
 600
 601 if PM
 602
 603 source "arch/ia64/kernel/cpufreq/Kconfig"
 604
 605 endif
 606
 607 endmenu
 608
 609 if !IA64_HP_SIM
 610
 611 menu "Bus options (PCI, PCMCIA)"
 612
 613 config PCI
 614         bool "PCI support"
 615         help
 616           Real IA-64 machines all have PCI/PCI-X/PCI Express busses.  Say Y
 617           here unless you are using a simulator without PCI support.
 618
 619 config PCI_DOMAINS
 620         def_bool PCI
 621
 622 config PCI_SYSCALL
 623         def_bool PCI
 624
 625 source "drivers/pci/pcie/Kconfig"
 626
 627 source "drivers/pci/Kconfig"
 628
 629 source "drivers/pci/hotplug/Kconfig"
 630
 631 source "drivers/pcmcia/Kconfig"
 632
 633 endmenu
 634
 635 endif
 636
 637 source "net/Kconfig"
 638
 639 source "drivers/Kconfig"
 640
 641 source "arch/ia64/hp/sim/Kconfig"
 642
 643 config MSPEC
 644         tristate "Memory special operations driver"
 645         depends on IA64
 646         select IA64_UNCACHED_ALLOCATOR
 647         help
 648           If you have an ia64 and you want to enable memory special
 649           operations support (formerly known as fetchop), say Y here,
 650           otherwise say N.
 651
 652 source "fs/Kconfig"
 653
 654 source "arch/ia64/Kconfig.debug"
 655
 656 source "security/Kconfig"
 657
 658 source "crypto/Kconfig"
 659
 660 source "arch/ia64/kvm/Kconfig"
 661
 662 source "lib/Kconfig"
 663
 664 config IOMMU_HELPER
 665         def_bool (IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB || IA64_GENERIC || SWIOTLB)