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