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 ARCH_MIGHT_HAVE_PC_SERIO
  11         select PCI if (!IA64_HP_SIM)
  12         select ACPI if (!IA64_HP_SIM)
  13         select PM if (!IA64_HP_SIM)
  14         select HAVE_UNSTABLE_SCHED_CLOCK
  15         select HAVE_IDE
  16         select HAVE_OPROFILE
  17         select HAVE_KPROBES
  18         select HAVE_KRETPROBES
  19         select HAVE_FTRACE_MCOUNT_RECORD
  20         select HAVE_DYNAMIC_FTRACE if (!ITANIUM)
  21         select HAVE_FUNCTION_TRACER
  22         select HAVE_DMA_ATTRS
  23         select HAVE_KVM
  24         select TTY
  25         select HAVE_ARCH_TRACEHOOK
  26         select HAVE_DMA_API_DEBUG
  27         select HAVE_MEMBLOCK
  28         select HAVE_MEMBLOCK_NODE_MAP
  29         select HAVE_VIRT_CPU_ACCOUNTING
  30         select VIRT_TO_BUS
  31         select ARCH_DISCARD_MEMBLOCK
  32         select GENERIC_IRQ_PROBE
  33         select GENERIC_PENDING_IRQ if SMP
  34         select GENERIC_IRQ_SHOW
  35         select GENERIC_IRQ_LEGACY
  36         select ARCH_WANT_OPTIONAL_GPIOLIB
  37         select ARCH_HAVE_NMI_SAFE_CMPXCHG
  38         select GENERIC_IOMAP
  39         select GENERIC_SMP_IDLE_THREAD
  40         select ARCH_INIT_TASK
  41         select ARCH_TASK_STRUCT_ALLOCATOR
  42         select ARCH_THREAD_INFO_ALLOCATOR
  43         select ARCH_CLOCKSOURCE_DATA
  44         select GENERIC_TIME_VSYSCALL_OLD
  45         select SYSCTL_ARCH_UNALIGN_NO_WARN
  46         select HAVE_MOD_ARCH_SPECIFIC
  47         select MODULES_USE_ELF_RELA
  48         select ARCH_USE_CMPXCHG_LOCKREF
  49         select HAVE_ARCH_AUDITSYSCALL
  50         default y
  51         help
  52           The Itanium Processor Family is Intel's 64-bit successor to
  53           the 32-bit X86 line.  The IA-64 Linux project has a home
  54           page at <http://www.linuxia64.org/> and a mailing list at
  55           <linux-ia64@vger.kernel.org>.
  56
  57 config 64BIT
  58         bool
  59         select ATA_NONSTANDARD if ATA
  60         default y
  61
  62 config ZONE_DMA
  63         def_bool y
  64         depends on !IA64_SGI_SN2
  65
  66 config QUICKLIST
  67         bool
  68         default y
  69
  70 config MMU
  71         bool
  72         default y
  73
  74 config ARCH_DMA_ADDR_T_64BIT
  75         def_bool y
  76
  77 config NEED_DMA_MAP_STATE
  78         def_bool y
  79
  80 config NEED_SG_DMA_LENGTH
  81         def_bool y
  82
  83 config SWIOTLB
  84        bool
  85
  86 config STACKTRACE_SUPPORT
  87         def_bool y
  88
  89 config GENERIC_LOCKBREAK
  90         def_bool n
  91
  92 config RWSEM_XCHGADD_ALGORITHM
  93         bool
  94         default y
  95
  96 config HUGETLB_PAGE_SIZE_VARIABLE
  97         bool
  98         depends on HUGETLB_PAGE
  99         default y
 100
 101 config GENERIC_CALIBRATE_DELAY
 102         bool
 103         default y
 104
 105 config HAVE_SETUP_PER_CPU_AREA
 106         def_bool y
 107
 108 config DMI
 109         bool
 110         default y
 111         select DMI_SCAN_MACHINE_NON_EFI_FALLBACK
 112
 113 config EFI
 114         bool
 115         select UCS2_STRING
 116         default y
 117
 118 config SCHED_OMIT_FRAME_POINTER
 119         bool
 120         default y
 121
 122 config IA64_UNCACHED_ALLOCATOR
 123         bool
 124         select GENERIC_ALLOCATOR
 125
 126 config ARCH_USES_PG_UNCACHED
 127         def_bool y
 128         depends on IA64_UNCACHED_ALLOCATOR
 129
 130 config AUDIT_ARCH
 131         bool
 132         default y
 133
 134 menuconfig PARAVIRT_GUEST
 135         bool "Paravirtualized guest support"
 136         depends on BROKEN
 137         help
 138           Say Y here to get to see options related to running Linux under
 139           various hypervisors.  This option alone does not add any kernel code.
 140
 141           If you say N, all options in this submenu will be skipped and disabled.
 142
 143 if PARAVIRT_GUEST
 144
 145 config PARAVIRT
 146         bool "Enable paravirtualization code"
 147         depends on PARAVIRT_GUEST
 148         default y
 149         help
 150           This changes the kernel so it can modify itself when it is run
 151           under a hypervisor, potentially improving performance significantly
 152           over full virtualization.  However, when run without a hypervisor
 153           the kernel is theoretically slower and slightly larger.
 154
 155 endif
 156
 157 choice
 158         prompt "System type"
 159         default IA64_GENERIC
 160
 161 config IA64_GENERIC
 162         bool "generic"
 163         select NUMA
 164         select ACPI_NUMA
 165         select SWIOTLB
 166         select PCI_MSI
 167         help
 168           This selects the system type of your hardware.  A "generic" kernel
 169           will run on any supported IA-64 system.  However, if you configure
 170           a kernel for your specific system, it will be faster and smaller.
 171
 172           generic               For any supported IA-64 system
 173           DIG-compliant         For DIG ("Developer's Interface Guide") compliant systems
 174           DIG+Intel+IOMMU       For DIG systems with Intel IOMMU
 175           HP-zx1/sx1000         For HP systems
 176           HP-zx1/sx1000+swiotlb For HP systems with (broken) DMA-constrained devices.
 177           SGI-SN2               For SGI Altix systems
 178           SGI-UV                For SGI UV systems
 179           Ski-simulator         For the HP simulator <http://www.hpl.hp.com/research/linux/ski/>
 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 INTEL_IOMMU
 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 endchoice
 236
 237 choice
 238         prompt "Processor type"
 239         default ITANIUM
 240
 241 config ITANIUM
 242         bool "Itanium"
 243         help
 244           Select your IA-64 processor type.  The default is Itanium.
 245           This choice is safe for all IA-64 systems, but may not perform
 246           optimally on systems with, say, Itanium 2 or newer processors.
 247
 248 config MCKINLEY
 249         bool "Itanium 2"
 250         help
 251           Select this to configure for an Itanium 2 (McKinley) processor.
 252
 253 endchoice
 254
 255 choice
 256         prompt "Kernel page size"
 257         default IA64_PAGE_SIZE_16KB
 258
 259 config IA64_PAGE_SIZE_4KB
 260         bool "4KB"
 261         help
 262           This lets you select the page size of the kernel.  For best IA-64
 263           performance, a page size of 8KB or 16KB is recommended.  For best
 264           IA-32 compatibility, a page size of 4KB should be selected (the vast
 265           majority of IA-32 binaries work perfectly fine with a larger page
 266           size).  For Itanium 2 or newer systems, a page size of 64KB can also
 267           be selected.
 268
 269           4KB                For best IA-32 compatibility
 270           8KB                For best IA-64 performance
 271           16KB               For best IA-64 performance
 272           64KB               Requires Itanium 2 or newer processor.
 273
 274           If you don't know what to do, choose 16KB.
 275
 276 config IA64_PAGE_SIZE_8KB
 277         bool "8KB"
 278
 279 config IA64_PAGE_SIZE_16KB
 280         bool "16KB"
 281
 282 config IA64_PAGE_SIZE_64KB
 283         depends on !ITANIUM
 284         bool "64KB"
 285
 286 endchoice
 287
 288 choice
 289         prompt "Page Table Levels"
 290         default PGTABLE_3
 291
 292 config PGTABLE_3
 293         bool "3 Levels"
 294
 295 config PGTABLE_4
 296         depends on !IA64_PAGE_SIZE_64KB
 297         bool "4 Levels"
 298
 299 endchoice
 300
 301 if IA64_HP_SIM
 302 config HZ
 303         default 32
 304 endif
 305
 306 if !IA64_HP_SIM
 307 source kernel/Kconfig.hz
 308 endif
 309
 310 config IA64_BRL_EMU
 311         bool
 312         depends on ITANIUM
 313         default y
 314
 315 # align cache-sensitive data to 128 bytes
 316 config IA64_L1_CACHE_SHIFT
 317         int
 318         default "7" if MCKINLEY
 319         default "6" if ITANIUM
 320
 321 config IA64_CYCLONE
 322         bool "Cyclone (EXA) Time Source support"
 323         help
 324           Say Y here to enable support for IBM EXA Cyclone time source.
 325           If you're unsure, answer N.
 326
 327 config IOSAPIC
 328         bool
 329         depends on !IA64_HP_SIM
 330         default y
 331
 332 config FORCE_MAX_ZONEORDER
 333         int "MAX_ORDER (11 - 17)"  if !HUGETLB_PAGE
 334         range 11 17  if !HUGETLB_PAGE
 335         default "17" if HUGETLB_PAGE
 336         default "11"
 337
 338 config SMP
 339         bool "Symmetric multi-processing support"
 340         help
 341           This enables support for systems with more than one CPU. If you have
 342           a system with only one CPU, say N.  If you have a system with more
 343           than one CPU, say Y.
 344
 345           If you say N here, the kernel will run on single and multiprocessor
 346           systems, but will use only one CPU of a multiprocessor system.  If
 347           you say Y here, the kernel will run on many, but not all,
 348           single processor systems.  On a single processor system, the kernel
 349           will run faster if you say N here.
 350
 351           See also the SMP-HOWTO available at
 352           <http://www.tldp.org/docs.html#howto>.
 353
 354           If you don't know what to do here, say N.
 355
 356 config NR_CPUS
 357         int "Maximum number of CPUs (2-4096)"
 358         range 2 4096
 359         depends on SMP
 360         default "4096"
 361         help
 362           You should set this to the number of CPUs in your system, but
 363           keep in mind that a kernel compiled for, e.g., 2 CPUs will boot but
 364           only use 2 CPUs on a >2 CPU system.  Setting this to a value larger
 365           than 64 will cause the use of a CPU mask array, causing a small
 366           performance hit.
 367
 368 config HOTPLUG_CPU
 369         bool "Support for hot-pluggable CPUs"
 370         depends on SMP
 371         default n
 372         ---help---
 373           Say Y here to experiment with turning CPUs off and on.  CPUs
 374           can be controlled through /sys/devices/system/cpu/cpu#.
 375           Say N if you want to disable CPU hotplug.
 376
 377 config ARCH_ENABLE_MEMORY_HOTPLUG
 378         def_bool y
 379
 380 config ARCH_ENABLE_MEMORY_HOTREMOVE
 381         def_bool y
 382
 383 config SCHED_SMT
 384         bool "SMT scheduler support"
 385         depends on SMP
 386         help
 387           Improves the CPU scheduler's decision making when dealing with
 388           Intel IA64 chips with MultiThreading at a cost of slightly increased
 389           overhead in some places. If unsure say N here.
 390
 391 config PERMIT_BSP_REMOVE
 392         bool "Support removal of Bootstrap Processor"
 393         depends on HOTPLUG_CPU
 394         default n
 395         ---help---
 396         Say Y here if your platform SAL will support removal of BSP with HOTPLUG_CPU
 397         support.
 398
 399 config FORCE_CPEI_RETARGET
 400         bool "Force assumption that CPEI can be re-targeted"
 401         depends on PERMIT_BSP_REMOVE
 402         default n
 403         ---help---
 404         Say Y if you need to force the assumption that CPEI can be re-targeted to
 405         any cpu in the system. This hint is available via ACPI 3.0 specifications.
 406         Tiger4 systems are capable of re-directing CPEI to any CPU other than BSP.
 407         This option it useful to enable this feature on older BIOS's as well.
 408         You can also enable this by using boot command line option force_cpei=1.
 409
 410 source "kernel/Kconfig.preempt"
 411
 412 source "mm/Kconfig"
 413
 414 config ARCH_SELECT_MEMORY_MODEL
 415         def_bool y
 416
 417 config ARCH_DISCONTIGMEM_ENABLE
 418         def_bool y
 419         help
 420           Say Y to support efficient handling of discontiguous physical memory,
 421           for architectures which are either NUMA (Non-Uniform Memory Access)
 422           or have huge holes in the physical address space for other reasons.
 423           See <file:Documentation/vm/numa> for more.
 424
 425 config ARCH_FLATMEM_ENABLE
 426         def_bool y
 427
 428 config ARCH_SPARSEMEM_ENABLE
 429         def_bool y
 430         depends on ARCH_DISCONTIGMEM_ENABLE
 431         select SPARSEMEM_VMEMMAP_ENABLE
 432
 433 config ARCH_DISCONTIGMEM_DEFAULT
 434         def_bool y if (IA64_SGI_SN2 || IA64_GENERIC || IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB)
 435         depends on ARCH_DISCONTIGMEM_ENABLE
 436
 437 config NUMA
 438         bool "NUMA support"
 439         depends on !IA64_HP_SIM && !FLATMEM
 440         default y if IA64_SGI_SN2
 441         select ACPI_NUMA if ACPI
 442         help
 443           Say Y to compile the kernel to support NUMA (Non-Uniform Memory
 444           Access).  This option is for configuring high-end multiprocessor
 445           server systems.  If in doubt, say N.
 446
 447 config NODES_SHIFT
 448         int "Max num nodes shift(3-10)"
 449         range 3 10
 450         default "10"
 451         depends on NEED_MULTIPLE_NODES
 452         help
 453           This option specifies the maximum number of nodes in your SSI system.
 454           MAX_NUMNODES will be 2^(This value).
 455           If in doubt, use the default.
 456
 457 # VIRTUAL_MEM_MAP and FLAT_NODE_MEM_MAP are functionally equivalent.
 458 # VIRTUAL_MEM_MAP has been retained for historical reasons.
 459 config VIRTUAL_MEM_MAP
 460         bool "Virtual mem map"
 461         depends on !SPARSEMEM
 462         default y if !IA64_HP_SIM
 463         help
 464           Say Y to compile the kernel with support for a virtual mem map.
 465           This code also only takes effect if a memory hole of greater than
 466           1 Gb is found during boot.  You must turn this option on if you
 467           require the DISCONTIGMEM option for your machine. If you are
 468           unsure, say Y.
 469
 470 config HOLES_IN_ZONE
 471         bool
 472         default y if VIRTUAL_MEM_MAP
 473
 474 config HAVE_ARCH_EARLY_PFN_TO_NID
 475         def_bool NUMA && SPARSEMEM
 476
 477 config HAVE_ARCH_NODEDATA_EXTENSION
 478         def_bool y
 479         depends on NUMA
 480
 481 config USE_PERCPU_NUMA_NODE_ID
 482         def_bool y
 483         depends on NUMA
 484
 485 config HAVE_MEMORYLESS_NODES
 486         def_bool NUMA
 487
 488 config ARCH_PROC_KCORE_TEXT
 489         def_bool y
 490         depends on PROC_KCORE
 491
 492 config IA64_MCA_RECOVERY
 493         tristate "MCA recovery from errors other than TLB."
 494
 495 config PERFMON
 496         bool "Performance monitor support"
 497         help
 498           Selects whether support for the IA-64 performance monitor hardware
 499           is included in the kernel.  This makes some kernel data-structures a
 500           little bigger and slows down execution a bit, but it is generally
 501           a good idea to turn this on.  If you're unsure, say Y.
 502
 503 config IA64_PALINFO
 504         tristate "/proc/pal support"
 505         help
 506           If you say Y here, you are able to get PAL (Processor Abstraction
 507           Layer) information in /proc/pal.  This contains useful information
 508           about the processors in your systems, such as cache and TLB sizes
 509           and the PAL firmware version in use.
 510
 511           To use this option, you have to ensure that the "/proc file system
 512           support" (CONFIG_PROC_FS) is enabled, too.
 513
 514 config IA64_MC_ERR_INJECT
 515         tristate "MC error injection support"
 516         help
 517           Adds support for MC error injection. If enabled, the kernel
 518           will provide a sysfs interface for user applications to
 519           call MC error injection PAL procedures to inject various errors.
 520           This is a useful tool for MCA testing.
 521
 522           If you're unsure, do not select this option.
 523
 524 config SGI_SN
 525         def_bool y if (IA64_SGI_SN2 || IA64_GENERIC)
 526
 527 config IA64_ESI
 528         bool "ESI (Extensible SAL Interface) support"
 529         help
 530           If you say Y here, support is built into the kernel to
 531           make ESI calls.  ESI calls are used to support vendor-specific
 532           firmware extensions, such as the ability to inject memory-errors
 533           for test-purposes.  If you're unsure, say N.
 534
 535 config IA64_HP_AML_NFW
 536         bool "Support ACPI AML calls to native firmware"
 537         help
 538           This driver installs a global ACPI Operation Region handler for
 539           region 0xA1.  AML methods can use this OpRegion to call arbitrary
 540           native firmware functions.  The driver installs the OpRegion
 541           handler if there is an HPQ5001 device or if the user supplies
 542           the "force" module parameter, e.g., with the "aml_nfw.force"
 543           kernel command line option.
 544
 545 source "drivers/sn/Kconfig"
 546
 547 config KEXEC
 548         bool "kexec system call"
 549         depends on !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
 550         help
 551           kexec is a system call that implements the ability to shutdown your
 552           current kernel, and to start another kernel.  It is like a reboot
 553           but it is independent of the system firmware.   And like a reboot
 554           you can start any kernel with it, not just Linux.
 555
 556           The name comes from the similarity to the exec system call.
 557
 558           It is an ongoing process to be certain the hardware in a machine
 559           is properly shutdown, so do not be surprised if this code does not
 560           initially work for you.  As of this writing the exact hardware
 561           interface is strongly in flux, so no good recommendation can be
 562           made.
 563
 564 config CRASH_DUMP
 565           bool "kernel crash dumps"
 566           depends on IA64_MCA_RECOVERY && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
 567           help
 568             Generate crash dump after being started by kexec.
 569
 570 source "drivers/firmware/Kconfig"
 571
 572 source "fs/Kconfig.binfmt"
 573
 574 endmenu
 575
 576 menu "Power management and ACPI options"
 577
 578 source "kernel/power/Kconfig"
 579
 580 source "drivers/acpi/Kconfig"
 581
 582 if PM
 583 menu "CPU Frequency scaling"
 584 source "drivers/cpufreq/Kconfig"
 585 endmenu
 586 endif
 587
 588 endmenu
 589
 590 if !IA64_HP_SIM
 591
 592 menu "Bus options (PCI, PCMCIA)"
 593
 594 config PCI
 595         bool "PCI support"
 596         help
 597           Real IA-64 machines all have PCI/PCI-X/PCI Express busses.  Say Y
 598           here unless you are using a simulator without PCI support.
 599
 600 config PCI_DOMAINS
 601         def_bool PCI
 602
 603 config PCI_SYSCALL
 604         def_bool PCI
 605
 606 source "drivers/pci/pcie/Kconfig"
 607
 608 source "drivers/pci/Kconfig"
 609
 610 source "drivers/pci/hotplug/Kconfig"
 611
 612 source "drivers/pcmcia/Kconfig"
 613
 614 endmenu
 615
 616 endif
 617
 618 source "net/Kconfig"
 619
 620 source "drivers/Kconfig"
 621
 622 source "arch/ia64/hp/sim/Kconfig"
 623
 624 config MSPEC
 625         tristate "Memory special operations driver"
 626         depends on IA64
 627         select IA64_UNCACHED_ALLOCATOR
 628         help
 629           If you have an ia64 and you want to enable memory special
 630           operations support (formerly known as fetchop), say Y here,
 631           otherwise say N.
 632
 633 source "fs/Kconfig"
 634
 635 source "arch/ia64/Kconfig.debug"
 636
 637 source "security/Kconfig"
 638
 639 source "crypto/Kconfig"
 640
 641 source "arch/ia64/kvm/Kconfig"
 642
 643 source "lib/Kconfig"
 644
 645 config IOMMU_HELPER
 646         def_bool (IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB || IA64_GENERIC || SWIOTLB)