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