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 ARCH_MIGHT_HAVE_PC_PARPORT
  10         select PCI if (!IA64_HP_SIM)
  11         select ACPI if (!IA64_HP_SIM)
  12         select PM if (!IA64_HP_SIM)
  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_MEMBLOCK
  26         select HAVE_MEMBLOCK_NODE_MAP
  27         select HAVE_VIRT_CPU_ACCOUNTING
  28         select VIRT_TO_BUS
  29         select ARCH_DISCARD_MEMBLOCK
  30         select GENERIC_IRQ_PROBE
  31         select GENERIC_PENDING_IRQ if SMP
  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_OLD
  42         select SYSCTL_ARCH_UNALIGN_NO_WARN
  43         select HAVE_MOD_ARCH_SPECIFIC
  44         select MODULES_USE_ELF_RELA
  45         select ARCH_USE_CMPXCHG_LOCKREF
  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         help
 348           This enables support for systems with more than one CPU. If you have
 349           a system with only one CPU, say N.  If you have a system with more
 350           than one CPU, say Y.
 351
 352           If you say N here, the kernel will run on single and multiprocessor
 353           systems, but will use only one CPU of a multiprocessor system.  If
 354           you say Y here, the kernel will run on many, but not all,
 355           single processor systems.  On a single processor system, the kernel
 356           will run faster if you say N here.
 357
 358           See also the SMP-HOWTO available at
 359           <http://www.tldp.org/docs.html#howto>.
 360
 361           If you don't know what to do here, say N.
 362
 363 config NR_CPUS
 364         int "Maximum number of CPUs (2-4096)"
 365         range 2 4096
 366         depends on SMP
 367         default "4096"
 368         help
 369           You should set this to the number of CPUs in your system, but
 370           keep in mind that a kernel compiled for, e.g., 2 CPUs will boot but
 371           only use 2 CPUs on a >2 CPU system.  Setting this to a value larger
 372           than 64 will cause the use of a CPU mask array, causing a small
 373           performance hit.
 374
 375 config HOTPLUG_CPU
 376         bool "Support for hot-pluggable CPUs"
 377         depends on SMP
 378         default n
 379         ---help---
 380           Say Y here to experiment with turning CPUs off and on.  CPUs
 381           can be controlled through /sys/devices/system/cpu/cpu#.
 382           Say N if you want to disable CPU hotplug.
 383
 384 config ARCH_ENABLE_MEMORY_HOTPLUG
 385         def_bool y
 386
 387 config ARCH_ENABLE_MEMORY_HOTREMOVE
 388         def_bool y
 389
 390 config SCHED_SMT
 391         bool "SMT scheduler support"
 392         depends on SMP
 393         help
 394           Improves the CPU scheduler's decision making when dealing with
 395           Intel IA64 chips with MultiThreading at a cost of slightly increased
 396           overhead in some places. If unsure say N here.
 397
 398 config PERMIT_BSP_REMOVE
 399         bool "Support removal of Bootstrap Processor"
 400         depends on HOTPLUG_CPU
 401         default n
 402         ---help---
 403         Say Y here if your platform SAL will support removal of BSP with HOTPLUG_CPU
 404         support.
 405
 406 config FORCE_CPEI_RETARGET
 407         bool "Force assumption that CPEI can be re-targeted"
 408         depends on PERMIT_BSP_REMOVE
 409         default n
 410         ---help---
 411         Say Y if you need to force the assumption that CPEI can be re-targeted to
 412         any cpu in the system. This hint is available via ACPI 3.0 specifications.
 413         Tiger4 systems are capable of re-directing CPEI to any CPU other than BSP.
 414         This option it useful to enable this feature on older BIOS's as well.
 415         You can also enable this by using boot command line option force_cpei=1.
 416
 417 source "kernel/Kconfig.preempt"
 418
 419 source "mm/Kconfig"
 420
 421 config ARCH_SELECT_MEMORY_MODEL
 422         def_bool y
 423
 424 config ARCH_DISCONTIGMEM_ENABLE
 425         def_bool y
 426         help
 427           Say Y to support efficient handling of discontiguous physical memory,
 428           for architectures which are either NUMA (Non-Uniform Memory Access)
 429           or have huge holes in the physical address space for other reasons.
 430           See <file:Documentation/vm/numa> for more.
 431
 432 config ARCH_FLATMEM_ENABLE
 433         def_bool y
 434
 435 config ARCH_SPARSEMEM_ENABLE
 436         def_bool y
 437         depends on ARCH_DISCONTIGMEM_ENABLE
 438         select SPARSEMEM_VMEMMAP_ENABLE
 439
 440 config ARCH_DISCONTIGMEM_DEFAULT
 441         def_bool y if (IA64_SGI_SN2 || IA64_GENERIC || IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB)
 442         depends on ARCH_DISCONTIGMEM_ENABLE
 443
 444 config NUMA
 445         bool "NUMA support"
 446         depends on !IA64_HP_SIM && !FLATMEM
 447         default y if IA64_SGI_SN2
 448         select ACPI_NUMA if ACPI
 449         help
 450           Say Y to compile the kernel to support NUMA (Non-Uniform Memory
 451           Access).  This option is for configuring high-end multiprocessor
 452           server systems.  If in doubt, say N.
 453
 454 config NODES_SHIFT
 455         int "Max num nodes shift(3-10)"
 456         range 3 10
 457         default "10"
 458         depends on NEED_MULTIPLE_NODES
 459         help
 460           This option specifies the maximum number of nodes in your SSI system.
 461           MAX_NUMNODES will be 2^(This value).
 462           If in doubt, use the default.
 463
 464 # VIRTUAL_MEM_MAP and FLAT_NODE_MEM_MAP are functionally equivalent.
 465 # VIRTUAL_MEM_MAP has been retained for historical reasons.
 466 config VIRTUAL_MEM_MAP
 467         bool "Virtual mem map"
 468         depends on !SPARSEMEM
 469         default y if !IA64_HP_SIM
 470         help
 471           Say Y to compile the kernel with support for a virtual mem map.
 472           This code also only takes effect if a memory hole of greater than
 473           1 Gb is found during boot.  You must turn this option on if you
 474           require the DISCONTIGMEM option for your machine. If you are
 475           unsure, say Y.
 476
 477 config HOLES_IN_ZONE
 478         bool
 479         default y if VIRTUAL_MEM_MAP
 480
 481 config HAVE_ARCH_EARLY_PFN_TO_NID
 482         def_bool NUMA && SPARSEMEM
 483
 484 config HAVE_ARCH_NODEDATA_EXTENSION
 485         def_bool y
 486         depends on NUMA
 487
 488 config USE_PERCPU_NUMA_NODE_ID
 489         def_bool y
 490         depends on NUMA
 491
 492 config HAVE_MEMORYLESS_NODES
 493         def_bool NUMA
 494
 495 config ARCH_PROC_KCORE_TEXT
 496         def_bool y
 497         depends on PROC_KCORE
 498
 499 config IA64_MCA_RECOVERY
 500         tristate "MCA recovery from errors other than TLB."
 501
 502 config PERFMON
 503         bool "Performance monitor support"
 504         help
 505           Selects whether support for the IA-64 performance monitor hardware
 506           is included in the kernel.  This makes some kernel data-structures a
 507           little bigger and slows down execution a bit, but it is generally
 508           a good idea to turn this on.  If you're unsure, say Y.
 509
 510 config IA64_PALINFO
 511         tristate "/proc/pal support"
 512         help
 513           If you say Y here, you are able to get PAL (Processor Abstraction
 514           Layer) information in /proc/pal.  This contains useful information
 515           about the processors in your systems, such as cache and TLB sizes
 516           and the PAL firmware version in use.
 517
 518           To use this option, you have to ensure that the "/proc file system
 519           support" (CONFIG_PROC_FS) is enabled, too.
 520
 521 config IA64_MC_ERR_INJECT
 522         tristate "MC error injection support"
 523         help
 524           Adds support for MC error injection. If enabled, the kernel
 525           will provide a sysfs interface for user applications to
 526           call MC error injection PAL procedures to inject various errors.
 527           This is a useful tool for MCA testing.
 528
 529           If you're unsure, do not select this option.
 530
 531 config SGI_SN
 532         def_bool y if (IA64_SGI_SN2 || IA64_GENERIC)
 533
 534 config IA64_ESI
 535         bool "ESI (Extensible SAL Interface) support"
 536         help
 537           If you say Y here, support is built into the kernel to
 538           make ESI calls.  ESI calls are used to support vendor-specific
 539           firmware extensions, such as the ability to inject memory-errors
 540           for test-purposes.  If you're unsure, say N.
 541
 542 config IA64_HP_AML_NFW
 543         bool "Support ACPI AML calls to native firmware"
 544         help
 545           This driver installs a global ACPI Operation Region handler for
 546           region 0xA1.  AML methods can use this OpRegion to call arbitrary
 547           native firmware functions.  The driver installs the OpRegion
 548           handler if there is an HPQ5001 device or if the user supplies
 549           the "force" module parameter, e.g., with the "aml_nfw.force"
 550           kernel command line option.
 551
 552 source "drivers/sn/Kconfig"
 553
 554 config KEXEC
 555         bool "kexec system call"
 556         depends on !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
 557         help
 558           kexec is a system call that implements the ability to shutdown your
 559           current kernel, and to start another kernel.  It is like a reboot
 560           but it is independent of the system firmware.   And like a reboot
 561           you can start any kernel with it, not just Linux.
 562
 563           The name comes from the similarity to the exec system call.
 564
 565           It is an ongoing process to be certain the hardware in a machine
 566           is properly shutdown, so do not be surprised if this code does not
 567           initially work for you.  As of this writing the exact hardware
 568           interface is strongly in flux, so no good recommendation can be
 569           made.
 570
 571 config CRASH_DUMP
 572           bool "kernel crash dumps"
 573           depends on IA64_MCA_RECOVERY && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
 574           help
 575             Generate crash dump after being started by kexec.
 576
 577 source "drivers/firmware/Kconfig"
 578
 579 source "fs/Kconfig.binfmt"
 580
 581 endmenu
 582
 583 menu "Power management and ACPI options"
 584
 585 source "kernel/power/Kconfig"
 586
 587 source "drivers/acpi/Kconfig"
 588
 589 if PM
 590 menu "CPU Frequency scaling"
 591 source "drivers/cpufreq/Kconfig"
 592 endmenu
 593 endif
 594
 595 endmenu
 596
 597 if !IA64_HP_SIM
 598
 599 menu "Bus options (PCI, PCMCIA)"
 600
 601 config PCI
 602         bool "PCI support"
 603         help
 604           Real IA-64 machines all have PCI/PCI-X/PCI Express busses.  Say Y
 605           here unless you are using a simulator without PCI support.
 606
 607 config PCI_DOMAINS
 608         def_bool PCI
 609
 610 config PCI_SYSCALL
 611         def_bool PCI
 612
 613 source "drivers/pci/pcie/Kconfig"
 614
 615 source "drivers/pci/Kconfig"
 616
 617 source "drivers/pci/hotplug/Kconfig"
 618
 619 source "drivers/pcmcia/Kconfig"
 620
 621 endmenu
 622
 623 endif
 624
 625 source "net/Kconfig"
 626
 627 source "drivers/Kconfig"
 628
 629 source "arch/ia64/hp/sim/Kconfig"
 630
 631 config MSPEC
 632         tristate "Memory special operations driver"
 633         depends on IA64
 634         select IA64_UNCACHED_ALLOCATOR
 635         help
 636           If you have an ia64 and you want to enable memory special
 637           operations support (formerly known as fetchop), say Y here,
 638           otherwise say N.
 639
 640 source "fs/Kconfig"
 641
 642 source "arch/ia64/Kconfig.debug"
 643
 644 source "security/Kconfig"
 645
 646 source "crypto/Kconfig"
 647
 648 source "arch/ia64/kvm/Kconfig"
 649
 650 source "lib/Kconfig"
 651
 652 config IOMMU_HELPER
 653         def_bool (IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB || IA64_GENERIC || SWIOTLB)