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 VIRT_TO_BUS
  30         select ARCH_DISCARD_MEMBLOCK
  31         select GENERIC_IRQ_PROBE
  32         select GENERIC_PENDING_IRQ if SMP
  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 SYSCTL_ARCH_UNALIGN_NO_WARN
  44         select HAVE_MOD_ARCH_SPECIFIC
  45         select MODULES_USE_ELF_RELA
  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 GENERIC_GPIO
 105         bool
 106
 107 config DMI
 108         bool
 109         default y
 110
 111 config EFI
 112         bool
 113         select UCS2_STRING
 114         default y
 115
 116 config SCHED_OMIT_FRAME_POINTER
 117         bool
 118         default y
 119
 120 config IA64_UNCACHED_ALLOCATOR
 121         bool
 122         select GENERIC_ALLOCATOR
 123
 124 config ARCH_USES_PG_UNCACHED
 125         def_bool y
 126         depends on IA64_UNCACHED_ALLOCATOR
 127
 128 config AUDIT_ARCH
 129         bool
 130         default y
 131
 132 menuconfig PARAVIRT_GUEST
 133         bool "Paravirtualized guest support"
 134         depends on BROKEN
 135         help
 136           Say Y here to get to see options related to running Linux under
 137           various hypervisors.  This option alone does not add any kernel code.
 138
 139           If you say N, all options in this submenu will be skipped and disabled.
 140
 141 if PARAVIRT_GUEST
 142
 143 config PARAVIRT
 144         bool "Enable paravirtualization code"
 145         depends on PARAVIRT_GUEST
 146         default y
 147         help
 148           This changes the kernel so it can modify itself when it is run
 149           under a hypervisor, potentially improving performance significantly
 150           over full virtualization.  However, when run without a hypervisor
 151           the kernel is theoretically slower and slightly larger.
 152
 153
 154 source "arch/ia64/xen/Kconfig"
 155
 156 endif
 157
 158 choice
 159         prompt "System type"
 160         default IA64_GENERIC
 161
 162 config IA64_GENERIC
 163         bool "generic"
 164         select NUMA
 165         select ACPI_NUMA
 166         select SWIOTLB
 167         select PCI_MSI
 168         help
 169           This selects the system type of your hardware.  A "generic" kernel
 170           will run on any supported IA-64 system.  However, if you configure
 171           a kernel for your specific system, it will be faster and smaller.
 172
 173           generic               For any supported IA-64 system
 174           DIG-compliant         For DIG ("Developer's Interface Guide") compliant systems
 175           DIG+Intel+IOMMU       For DIG systems with Intel IOMMU
 176           HP-zx1/sx1000         For HP systems
 177           HP-zx1/sx1000+swiotlb For HP systems with (broken) DMA-constrained devices.
 178           SGI-SN2               For SGI Altix systems
 179           SGI-UV                For SGI UV systems
 180           Ski-simulator         For the HP simulator <http://www.hpl.hp.com/research/linux/ski/>
 181           Xen-domU              For xen domU system
 182
 183           If you don't know what to do, choose "generic".
 184
 185 config IA64_DIG
 186         bool "DIG-compliant"
 187         select SWIOTLB
 188
 189 config IA64_DIG_VTD
 190         bool "DIG+Intel+IOMMU"
 191         select INTEL_IOMMU
 192         select PCI_MSI
 193
 194 config IA64_HP_ZX1
 195         bool "HP-zx1/sx1000"
 196         help
 197           Build a kernel that runs on HP zx1 and sx1000 systems.  This adds
 198           support for the HP I/O MMU.
 199
 200 config IA64_HP_ZX1_SWIOTLB
 201         bool "HP-zx1/sx1000 with software I/O TLB"
 202         select SWIOTLB
 203         help
 204           Build a kernel that runs on HP zx1 and sx1000 systems even when they
 205           have broken PCI devices which cannot DMA to full 32 bits.  Apart
 206           from support for the HP I/O MMU, this includes support for the software
 207           I/O TLB, which allows supporting the broken devices at the expense of
 208           wasting some kernel memory (about 2MB by default).
 209
 210 config IA64_SGI_SN2
 211         bool "SGI-SN2"
 212         select NUMA
 213         select ACPI_NUMA
 214         help
 215           Selecting this option will optimize the kernel for use on sn2 based
 216           systems, but the resulting kernel binary will not run on other
 217           types of ia64 systems.  If you have an SGI Altix system, it's safe
 218           to select this option.  If in doubt, select ia64 generic support
 219           instead.
 220
 221 config IA64_SGI_UV
 222         bool "SGI-UV"
 223         select NUMA
 224         select ACPI_NUMA
 225         select SWIOTLB
 226         help
 227           Selecting this option will optimize the kernel for use on UV based
 228           systems, but the resulting kernel binary will not run on other
 229           types of ia64 systems.  If you have an SGI UV system, it's safe
 230           to select this option.  If in doubt, select ia64 generic support
 231           instead.
 232
 233 config IA64_HP_SIM
 234         bool "Ski-simulator"
 235         select SWIOTLB
 236
 237 config IA64_XEN_GUEST
 238         bool "Xen guest"
 239         select SWIOTLB
 240         depends on XEN
 241         help
 242           Build a kernel that runs on Xen guest domain. At this moment only
 243           16KB page size in supported.
 244
 245 endchoice
 246
 247 choice
 248         prompt "Processor type"
 249         default ITANIUM
 250
 251 config ITANIUM
 252         bool "Itanium"
 253         help
 254           Select your IA-64 processor type.  The default is Itanium.
 255           This choice is safe for all IA-64 systems, but may not perform
 256           optimally on systems with, say, Itanium 2 or newer processors.
 257
 258 config MCKINLEY
 259         bool "Itanium 2"
 260         help
 261           Select this to configure for an Itanium 2 (McKinley) processor.
 262
 263 endchoice
 264
 265 choice
 266         prompt "Kernel page size"
 267         default IA64_PAGE_SIZE_16KB
 268
 269 config IA64_PAGE_SIZE_4KB
 270         bool "4KB"
 271         help
 272           This lets you select the page size of the kernel.  For best IA-64
 273           performance, a page size of 8KB or 16KB is recommended.  For best
 274           IA-32 compatibility, a page size of 4KB should be selected (the vast
 275           majority of IA-32 binaries work perfectly fine with a larger page
 276           size).  For Itanium 2 or newer systems, a page size of 64KB can also
 277           be selected.
 278
 279           4KB                For best IA-32 compatibility
 280           8KB                For best IA-64 performance
 281           16KB               For best IA-64 performance
 282           64KB               Requires Itanium 2 or newer processor.
 283
 284           If you don't know what to do, choose 16KB.
 285
 286 config IA64_PAGE_SIZE_8KB
 287         bool "8KB"
 288
 289 config IA64_PAGE_SIZE_16KB
 290         bool "16KB"
 291
 292 config IA64_PAGE_SIZE_64KB
 293         depends on !ITANIUM
 294         bool "64KB"
 295
 296 endchoice
 297
 298 choice
 299         prompt "Page Table Levels"
 300         default PGTABLE_3
 301
 302 config PGTABLE_3
 303         bool "3 Levels"
 304
 305 config PGTABLE_4
 306         depends on !IA64_PAGE_SIZE_64KB
 307         bool "4 Levels"
 308
 309 endchoice
 310
 311 if IA64_HP_SIM
 312 config HZ
 313         default 32
 314 endif
 315
 316 if !IA64_HP_SIM
 317 source kernel/Kconfig.hz
 318 endif
 319
 320 config IA64_BRL_EMU
 321         bool
 322         depends on ITANIUM
 323         default y
 324
 325 # align cache-sensitive data to 128 bytes
 326 config IA64_L1_CACHE_SHIFT
 327         int
 328         default "7" if MCKINLEY
 329         default "6" if ITANIUM
 330
 331 config IA64_CYCLONE
 332         bool "Cyclone (EXA) Time Source support"
 333         help
 334           Say Y here to enable support for IBM EXA Cyclone time source.
 335           If you're unsure, answer N.
 336
 337 config IOSAPIC
 338         bool
 339         depends on !IA64_HP_SIM
 340         default y
 341
 342 config FORCE_MAX_ZONEORDER
 343         int "MAX_ORDER (11 - 17)"  if !HUGETLB_PAGE
 344         range 11 17  if !HUGETLB_PAGE
 345         default "17" if HUGETLB_PAGE
 346         default "11"
 347
 348 config SMP
 349         bool "Symmetric multi-processing support"
 350         select USE_GENERIC_SMP_HELPERS
 351         help
 352           This enables support for systems with more than one CPU. If you have
 353           a system with only one CPU, say N.  If you have a system with more
 354           than one CPU, say Y.
 355
 356           If you say N here, the kernel will run on single and multiprocessor
 357           systems, but will use only one CPU of a multiprocessor system.  If
 358           you say Y here, the kernel will run on many, but not all,
 359           single processor systems.  On a single processor system, the kernel
 360           will run faster if you say N here.
 361
 362           See also the SMP-HOWTO available at
 363           <http://www.tldp.org/docs.html#howto>.
 364
 365           If you don't know what to do here, say N.
 366
 367 config NR_CPUS
 368         int "Maximum number of CPUs (2-4096)"
 369         range 2 4096
 370         depends on SMP
 371         default "4096"
 372         help
 373           You should set this to the number of CPUs in your system, but
 374           keep in mind that a kernel compiled for, e.g., 2 CPUs will boot but
 375           only use 2 CPUs on a >2 CPU system.  Setting this to a value larger
 376           than 64 will cause the use of a CPU mask array, causing a small
 377           performance hit.
 378
 379 config HOTPLUG_CPU
 380         bool "Support for hot-pluggable CPUs"
 381         depends on SMP
 382         select HOTPLUG
 383         default n
 384         ---help---
 385           Say Y here to experiment with turning CPUs off and on.  CPUs
 386           can be controlled through /sys/devices/system/cpu/cpu#.
 387           Say N if you want to disable CPU hotplug.
 388
 389 config ARCH_ENABLE_MEMORY_HOTPLUG
 390         def_bool y
 391
 392 config ARCH_ENABLE_MEMORY_HOTREMOVE
 393         def_bool y
 394
 395 config SCHED_SMT
 396         bool "SMT scheduler support"
 397         depends on SMP
 398         help
 399           Improves the CPU scheduler's decision making when dealing with
 400           Intel IA64 chips with MultiThreading at a cost of slightly increased
 401           overhead in some places. If unsure say N here.
 402
 403 config PERMIT_BSP_REMOVE
 404         bool "Support removal of Bootstrap Processor"
 405         depends on HOTPLUG_CPU
 406         default n
 407         ---help---
 408         Say Y here if your platform SAL will support removal of BSP with HOTPLUG_CPU
 409         support.
 410
 411 config FORCE_CPEI_RETARGET
 412         bool "Force assumption that CPEI can be re-targeted"
 413         depends on PERMIT_BSP_REMOVE
 414         default n
 415         ---help---
 416         Say Y if you need to force the assumption that CPEI can be re-targeted to
 417         any cpu in the system. This hint is available via ACPI 3.0 specifications.
 418         Tiger4 systems are capable of re-directing CPEI to any CPU other than BSP.
 419         This option it useful to enable this feature on older BIOS's as well.
 420         You can also enable this by using boot command line option force_cpei=1.
 421
 422 source "kernel/Kconfig.preempt"
 423
 424 source "mm/Kconfig"
 425
 426 config ARCH_SELECT_MEMORY_MODEL
 427         def_bool y
 428
 429 config ARCH_DISCONTIGMEM_ENABLE
 430         def_bool y
 431         help
 432           Say Y to support efficient handling of discontiguous physical memory,
 433           for architectures which are either NUMA (Non-Uniform Memory Access)
 434           or have huge holes in the physical address space for other reasons.
 435           See <file:Documentation/vm/numa> for more.
 436
 437 config ARCH_FLATMEM_ENABLE
 438         def_bool y
 439
 440 config ARCH_SPARSEMEM_ENABLE
 441         def_bool y
 442         depends on ARCH_DISCONTIGMEM_ENABLE
 443         select SPARSEMEM_VMEMMAP_ENABLE
 444
 445 config ARCH_DISCONTIGMEM_DEFAULT
 446         def_bool y if (IA64_SGI_SN2 || IA64_GENERIC || IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB)
 447         depends on ARCH_DISCONTIGMEM_ENABLE
 448
 449 config NUMA
 450         bool "NUMA support"
 451         depends on !IA64_HP_SIM && !FLATMEM
 452         default y if IA64_SGI_SN2
 453         select ACPI_NUMA if ACPI
 454         help
 455           Say Y to compile the kernel to support NUMA (Non-Uniform Memory
 456           Access).  This option is for configuring high-end multiprocessor
 457           server systems.  If in doubt, say N.
 458
 459 config NODES_SHIFT
 460         int "Max num nodes shift(3-10)"
 461         range 3 10
 462         default "10"
 463         depends on NEED_MULTIPLE_NODES
 464         help
 465           This option specifies the maximum number of nodes in your SSI system.
 466           MAX_NUMNODES will be 2^(This value).
 467           If in doubt, use the default.
 468
 469 # VIRTUAL_MEM_MAP and FLAT_NODE_MEM_MAP are functionally equivalent.
 470 # VIRTUAL_MEM_MAP has been retained for historical reasons.
 471 config VIRTUAL_MEM_MAP
 472         bool "Virtual mem map"
 473         depends on !SPARSEMEM
 474         default y if !IA64_HP_SIM
 475         help
 476           Say Y to compile the kernel with support for a virtual mem map.
 477           This code also only takes effect if a memory hole of greater than
 478           1 Gb is found during boot.  You must turn this option on if you
 479           require the DISCONTIGMEM option for your machine. If you are
 480           unsure, say Y.
 481
 482 config HOLES_IN_ZONE
 483         bool
 484         default y if VIRTUAL_MEM_MAP
 485
 486 config HAVE_ARCH_EARLY_PFN_TO_NID
 487         def_bool NUMA && SPARSEMEM
 488
 489 config HAVE_ARCH_NODEDATA_EXTENSION
 490         def_bool y
 491         depends on NUMA
 492
 493 config USE_PERCPU_NUMA_NODE_ID
 494         def_bool y
 495         depends on NUMA
 496
 497 config HAVE_MEMORYLESS_NODES
 498         def_bool NUMA
 499
 500 config ARCH_PROC_KCORE_TEXT
 501         def_bool y
 502         depends on PROC_KCORE
 503
 504 config IA64_MCA_RECOVERY
 505         tristate "MCA recovery from errors other than TLB."
 506
 507 config PERFMON
 508         bool "Performance monitor support"
 509         help
 510           Selects whether support for the IA-64 performance monitor hardware
 511           is included in the kernel.  This makes some kernel data-structures a
 512           little bigger and slows down execution a bit, but it is generally
 513           a good idea to turn this on.  If you're unsure, say Y.
 514
 515 config IA64_PALINFO
 516         tristate "/proc/pal support"
 517         help
 518           If you say Y here, you are able to get PAL (Processor Abstraction
 519           Layer) information in /proc/pal.  This contains useful information
 520           about the processors in your systems, such as cache and TLB sizes
 521           and the PAL firmware version in use.
 522
 523           To use this option, you have to ensure that the "/proc file system
 524           support" (CONFIG_PROC_FS) is enabled, too.
 525
 526 config IA64_MC_ERR_INJECT
 527         tristate "MC error injection support"
 528         help
 529           Adds support for MC error injection. If enabled, the kernel
 530           will provide a sysfs interface for user applications to
 531           call MC error injection PAL procedures to inject various errors.
 532           This is a useful tool for MCA testing.
 533
 534           If you're unsure, do not select this option.
 535
 536 config SGI_SN
 537         def_bool y if (IA64_SGI_SN2 || IA64_GENERIC)
 538
 539 config IA64_ESI
 540         bool "ESI (Extensible SAL Interface) support"
 541         help
 542           If you say Y here, support is built into the kernel to
 543           make ESI calls.  ESI calls are used to support vendor-specific
 544           firmware extensions, such as the ability to inject memory-errors
 545           for test-purposes.  If you're unsure, say N.
 546
 547 config IA64_HP_AML_NFW
 548         bool "Support ACPI AML calls to native firmware"
 549         help
 550           This driver installs a global ACPI Operation Region handler for
 551           region 0xA1.  AML methods can use this OpRegion to call arbitrary
 552           native firmware functions.  The driver installs the OpRegion
 553           handler if there is an HPQ5001 device or if the user supplies
 554           the "force" module parameter, e.g., with the "aml_nfw.force"
 555           kernel command line option.
 556
 557 source "drivers/sn/Kconfig"
 558
 559 config KEXEC
 560         bool "kexec system call"
 561         depends on !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
 562         help
 563           kexec is a system call that implements the ability to shutdown your
 564           current kernel, and to start another kernel.  It is like a reboot
 565           but it is independent of the system firmware.   And like a reboot
 566           you can start any kernel with it, not just Linux.
 567
 568           The name comes from the similarity to the exec system call.
 569
 570           It is an ongoing process to be certain the hardware in a machine
 571           is properly shutdown, so do not be surprised if this code does not
 572           initially work for you.  It may help to enable device hotplugging
 573           support.  As of this writing the exact hardware interface is
 574           strongly in flux, so no good recommendation can be made.
 575
 576 config CRASH_DUMP
 577           bool "kernel crash dumps"
 578           depends on IA64_MCA_RECOVERY && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
 579           help
 580             Generate crash dump after being started by kexec.
 581
 582 source "drivers/firmware/Kconfig"
 583
 584 source "fs/Kconfig.binfmt"
 585
 586 endmenu
 587
 588 menu "Power management and ACPI options"
 589
 590 source "kernel/power/Kconfig"
 591
 592 source "drivers/acpi/Kconfig"
 593
 594 if PM
 595 menu "CPU Frequency scaling"
 596 source "drivers/cpufreq/Kconfig"
 597 endmenu
 598 endif
 599
 600 endmenu
 601
 602 if !IA64_HP_SIM
 603
 604 menu "Bus options (PCI, PCMCIA)"
 605
 606 config PCI
 607         bool "PCI support"
 608         help
 609           Real IA-64 machines all have PCI/PCI-X/PCI Express busses.  Say Y
 610           here unless you are using a simulator without PCI support.
 611
 612 config PCI_DOMAINS
 613         def_bool PCI
 614
 615 config PCI_SYSCALL
 616         def_bool PCI
 617
 618 source "drivers/pci/pcie/Kconfig"
 619
 620 source "drivers/pci/Kconfig"
 621
 622 source "drivers/pci/hotplug/Kconfig"
 623
 624 source "drivers/pcmcia/Kconfig"
 625
 626 endmenu
 627
 628 endif
 629
 630 source "net/Kconfig"
 631
 632 source "drivers/Kconfig"
 633
 634 source "arch/ia64/hp/sim/Kconfig"
 635
 636 config MSPEC
 637         tristate "Memory special operations driver"
 638         depends on IA64
 639         select IA64_UNCACHED_ALLOCATOR
 640         help
 641           If you have an ia64 and you want to enable memory special
 642           operations support (formerly known as fetchop), say Y here,
 643           otherwise say N.
 644
 645 source "fs/Kconfig"
 646
 647 source "arch/ia64/Kconfig.debug"
 648
 649 source "security/Kconfig"
 650
 651 source "crypto/Kconfig"
 652
 653 source "arch/ia64/kvm/Kconfig"
 654
 655 source "lib/Kconfig"
 656
 657 config IOMMU_HELPER
 658         def_bool (IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB || IA64_GENERIC || SWIOTLB)