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