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 ARCH_MIGHT_HAVE_ACPI_PDC if ACPI
  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 TTY
  24         select HAVE_ARCH_TRACEHOOK
  25         select HAVE_DMA_API_DEBUG
  26         select HAVE_MEMBLOCK
  27         select HAVE_MEMBLOCK_NODE_MAP
  28         select HAVE_VIRT_CPU_ACCOUNTING
  29         select ARCH_HAS_SG_CHAIN
  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         depends on !PM
 235
 236 endchoice
 237
 238 choice
 239         prompt "Processor type"
 240         default ITANIUM
 241
 242 config ITANIUM
 243         bool "Itanium"
 244         help
 245           Select your IA-64 processor type.  The default is Itanium.
 246           This choice is safe for all IA-64 systems, but may not perform
 247           optimally on systems with, say, Itanium 2 or newer processors.
 248
 249 config MCKINLEY
 250         bool "Itanium 2"
 251         help
 252           Select this to configure for an Itanium 2 (McKinley) processor.
 253
 254 endchoice
 255
 256 choice
 257         prompt "Kernel page size"
 258         default IA64_PAGE_SIZE_16KB
 259
 260 config IA64_PAGE_SIZE_4KB
 261         bool "4KB"
 262         help
 263           This lets you select the page size of the kernel.  For best IA-64
 264           performance, a page size of 8KB or 16KB is recommended.  For best
 265           IA-32 compatibility, a page size of 4KB should be selected (the vast
 266           majority of IA-32 binaries work perfectly fine with a larger page
 267           size).  For Itanium 2 or newer systems, a page size of 64KB can also
 268           be selected.
 269
 270           4KB                For best IA-32 compatibility
 271           8KB                For best IA-64 performance
 272           16KB               For best IA-64 performance
 273           64KB               Requires Itanium 2 or newer processor.
 274
 275           If you don't know what to do, choose 16KB.
 276
 277 config IA64_PAGE_SIZE_8KB
 278         bool "8KB"
 279
 280 config IA64_PAGE_SIZE_16KB
 281         bool "16KB"
 282
 283 config IA64_PAGE_SIZE_64KB
 284         depends on !ITANIUM
 285         bool "64KB"
 286
 287 endchoice
 288
 289 choice
 290         prompt "Page Table Levels"
 291         default PGTABLE_3
 292
 293 config PGTABLE_3
 294         bool "3 Levels"
 295
 296 config PGTABLE_4
 297         depends on !IA64_PAGE_SIZE_64KB
 298         bool "4 Levels"
 299
 300 endchoice
 301
 302 if IA64_HP_SIM
 303 config HZ
 304         default 32
 305 endif
 306
 307 if !IA64_HP_SIM
 308 source kernel/Kconfig.hz
 309 endif
 310
 311 config IA64_BRL_EMU
 312         bool
 313         depends on ITANIUM
 314         default y
 315
 316 # align cache-sensitive data to 128 bytes
 317 config IA64_L1_CACHE_SHIFT
 318         int
 319         default "7" if MCKINLEY
 320         default "6" if ITANIUM
 321
 322 config IA64_CYCLONE
 323         bool "Cyclone (EXA) Time Source support"
 324         help
 325           Say Y here to enable support for IBM EXA Cyclone time source.
 326           If you're unsure, answer N.
 327
 328 config IOSAPIC
 329         bool
 330         depends on !IA64_HP_SIM
 331         default y
 332
 333 config FORCE_MAX_ZONEORDER
 334         int "MAX_ORDER (11 - 17)"  if !HUGETLB_PAGE
 335         range 11 17  if !HUGETLB_PAGE
 336         default "17" if HUGETLB_PAGE
 337         default "11"
 338
 339 config SMP
 340         bool "Symmetric multi-processing support"
 341         help
 342           This enables support for systems with more than one CPU. If you have
 343           a system with only one CPU, say N.  If you have a system with more
 344           than one CPU, say Y.
 345
 346           If you say N here, the kernel will run on single and multiprocessor
 347           systems, but will use only one CPU of a multiprocessor system.  If
 348           you say Y here, the kernel will run on many, but not all,
 349           single processor systems.  On a single processor system, the kernel
 350           will run faster if you say N here.
 351
 352           See also the SMP-HOWTO available at
 353           <http://www.tldp.org/docs.html#howto>.
 354
 355           If you don't know what to do here, say N.
 356
 357 config NR_CPUS
 358         int "Maximum number of CPUs (2-4096)"
 359         range 2 4096
 360         depends on SMP
 361         default "4096"
 362         help
 363           You should set this to the number of CPUs in your system, but
 364           keep in mind that a kernel compiled for, e.g., 2 CPUs will boot but
 365           only use 2 CPUs on a >2 CPU system.  Setting this to a value larger
 366           than 64 will cause the use of a CPU mask array, causing a small
 367           performance hit.
 368
 369 config HOTPLUG_CPU
 370         bool "Support for hot-pluggable CPUs"
 371         depends on SMP
 372         default n
 373         ---help---
 374           Say Y here to experiment with turning CPUs off and on.  CPUs
 375           can be controlled through /sys/devices/system/cpu/cpu#.
 376           Say N if you want to disable CPU hotplug.
 377
 378 config ARCH_ENABLE_MEMORY_HOTPLUG
 379         def_bool y
 380
 381 config ARCH_ENABLE_MEMORY_HOTREMOVE
 382         def_bool y
 383
 384 config SCHED_SMT
 385         bool "SMT scheduler support"
 386         depends on SMP
 387         help
 388           Improves the CPU scheduler's decision making when dealing with
 389           Intel IA64 chips with MultiThreading at a cost of slightly increased
 390           overhead in some places. If unsure say N here.
 391
 392 config PERMIT_BSP_REMOVE
 393         bool "Support removal of Bootstrap Processor"
 394         depends on HOTPLUG_CPU
 395         default n
 396         ---help---
 397         Say Y here if your platform SAL will support removal of BSP with HOTPLUG_CPU
 398         support.
 399
 400 config FORCE_CPEI_RETARGET
 401         bool "Force assumption that CPEI can be re-targeted"
 402         depends on PERMIT_BSP_REMOVE
 403         default n
 404         ---help---
 405         Say Y if you need to force the assumption that CPEI can be re-targeted to
 406         any cpu in the system. This hint is available via ACPI 3.0 specifications.
 407         Tiger4 systems are capable of re-directing CPEI to any CPU other than BSP.
 408         This option it useful to enable this feature on older BIOS's as well.
 409         You can also enable this by using boot command line option force_cpei=1.
 410
 411 source "kernel/Kconfig.preempt"
 412
 413 source "mm/Kconfig"
 414
 415 config ARCH_SELECT_MEMORY_MODEL
 416         def_bool y
 417
 418 config ARCH_DISCONTIGMEM_ENABLE
 419         def_bool y
 420         help
 421           Say Y to support efficient handling of discontiguous physical memory,
 422           for architectures which are either NUMA (Non-Uniform Memory Access)
 423           or have huge holes in the physical address space for other reasons.
 424           See <file:Documentation/vm/numa> for more.
 425
 426 config ARCH_FLATMEM_ENABLE
 427         def_bool y
 428
 429 config ARCH_SPARSEMEM_ENABLE
 430         def_bool y
 431         depends on ARCH_DISCONTIGMEM_ENABLE
 432         select SPARSEMEM_VMEMMAP_ENABLE
 433
 434 config ARCH_DISCONTIGMEM_DEFAULT
 435         def_bool y if (IA64_SGI_SN2 || IA64_GENERIC || IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB)
 436         depends on ARCH_DISCONTIGMEM_ENABLE
 437
 438 config NUMA
 439         bool "NUMA support"
 440         depends on !IA64_HP_SIM && !FLATMEM
 441         default y if IA64_SGI_SN2
 442         select ACPI_NUMA if ACPI
 443         help
 444           Say Y to compile the kernel to support NUMA (Non-Uniform Memory
 445           Access).  This option is for configuring high-end multiprocessor
 446           server systems.  If in doubt, say N.
 447
 448 config NODES_SHIFT
 449         int "Max num nodes shift(3-10)"
 450         range 3 10
 451         default "10"
 452         depends on NEED_MULTIPLE_NODES
 453         help
 454           This option specifies the maximum number of nodes in your SSI system.
 455           MAX_NUMNODES will be 2^(This value).
 456           If in doubt, use the default.
 457
 458 # VIRTUAL_MEM_MAP and FLAT_NODE_MEM_MAP are functionally equivalent.
 459 # VIRTUAL_MEM_MAP has been retained for historical reasons.
 460 config VIRTUAL_MEM_MAP
 461         bool "Virtual mem map"
 462         depends on !SPARSEMEM
 463         default y if !IA64_HP_SIM
 464         help
 465           Say Y to compile the kernel with support for a virtual mem map.
 466           This code also only takes effect if a memory hole of greater than
 467           1 Gb is found during boot.  You must turn this option on if you
 468           require the DISCONTIGMEM option for your machine. If you are
 469           unsure, say Y.
 470
 471 config HOLES_IN_ZONE
 472         bool
 473         default y if VIRTUAL_MEM_MAP
 474
 475 config HAVE_ARCH_EARLY_PFN_TO_NID
 476         def_bool NUMA && SPARSEMEM
 477
 478 config HAVE_ARCH_NODEDATA_EXTENSION
 479         def_bool y
 480         depends on NUMA
 481
 482 config USE_PERCPU_NUMA_NODE_ID
 483         def_bool y
 484         depends on NUMA
 485
 486 config HAVE_MEMORYLESS_NODES
 487         def_bool NUMA
 488
 489 config ARCH_PROC_KCORE_TEXT
 490         def_bool y
 491         depends on PROC_KCORE
 492
 493 config IA64_MCA_RECOVERY
 494         tristate "MCA recovery from errors other than TLB."
 495
 496 config PERFMON
 497         bool "Performance monitor support"
 498         help
 499           Selects whether support for the IA-64 performance monitor hardware
 500           is included in the kernel.  This makes some kernel data-structures a
 501           little bigger and slows down execution a bit, but it is generally
 502           a good idea to turn this on.  If you're unsure, say Y.
 503
 504 config IA64_PALINFO
 505         tristate "/proc/pal support"
 506         help
 507           If you say Y here, you are able to get PAL (Processor Abstraction
 508           Layer) information in /proc/pal.  This contains useful information
 509           about the processors in your systems, such as cache and TLB sizes
 510           and the PAL firmware version in use.
 511
 512           To use this option, you have to ensure that the "/proc file system
 513           support" (CONFIG_PROC_FS) is enabled, too.
 514
 515 config IA64_MC_ERR_INJECT
 516         tristate "MC error injection support"
 517         help
 518           Adds support for MC error injection. If enabled, the kernel
 519           will provide a sysfs interface for user applications to
 520           call MC error injection PAL procedures to inject various errors.
 521           This is a useful tool for MCA testing.
 522
 523           If you're unsure, do not select this option.
 524
 525 config SGI_SN
 526         def_bool y if (IA64_SGI_SN2 || IA64_GENERIC)
 527
 528 config IA64_ESI
 529         bool "ESI (Extensible SAL Interface) support"
 530         help
 531           If you say Y here, support is built into the kernel to
 532           make ESI calls.  ESI calls are used to support vendor-specific
 533           firmware extensions, such as the ability to inject memory-errors
 534           for test-purposes.  If you're unsure, say N.
 535
 536 config IA64_HP_AML_NFW
 537         bool "Support ACPI AML calls to native firmware"
 538         help
 539           This driver installs a global ACPI Operation Region handler for
 540           region 0xA1.  AML methods can use this OpRegion to call arbitrary
 541           native firmware functions.  The driver installs the OpRegion
 542           handler if there is an HPQ5001 device or if the user supplies
 543           the "force" module parameter, e.g., with the "aml_nfw.force"
 544           kernel command line option.
 545
 546 source "drivers/sn/Kconfig"
 547
 548 config KEXEC
 549         bool "kexec system call"
 550         depends on !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
 551         help
 552           kexec is a system call that implements the ability to shutdown your
 553           current kernel, and to start another kernel.  It is like a reboot
 554           but it is independent of the system firmware.   And like a reboot
 555           you can start any kernel with it, not just Linux.
 556
 557           The name comes from the similarity to the exec system call.
 558
 559           It is an ongoing process to be certain the hardware in a machine
 560           is properly shutdown, so do not be surprised if this code does not
 561           initially work for you.  As of this writing the exact hardware
 562           interface is strongly in flux, so no good recommendation can be
 563           made.
 564
 565 config CRASH_DUMP
 566           bool "kernel crash dumps"
 567           depends on IA64_MCA_RECOVERY && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
 568           help
 569             Generate crash dump after being started by kexec.
 570
 571 source "drivers/firmware/Kconfig"
 572
 573 source "fs/Kconfig.binfmt"
 574
 575 endmenu
 576
 577 menu "Power management and ACPI options"
 578
 579 source "kernel/power/Kconfig"
 580
 581 source "drivers/acpi/Kconfig"
 582
 583 if PM
 584 menu "CPU Frequency scaling"
 585 source "drivers/cpufreq/Kconfig"
 586 endmenu
 587 endif
 588
 589 endmenu
 590
 591 if !IA64_HP_SIM
 592
 593 menu "Bus options (PCI, PCMCIA)"
 594
 595 config PCI
 596         bool "PCI support"
 597         help
 598           Real IA-64 machines all have PCI/PCI-X/PCI Express busses.  Say Y
 599           here unless you are using a simulator without PCI support.
 600
 601 config PCI_DOMAINS
 602         def_bool PCI
 603
 604 config PCI_SYSCALL
 605         def_bool PCI
 606
 607 source "drivers/pci/pcie/Kconfig"
 608
 609 source "drivers/pci/Kconfig"
 610
 611 source "drivers/pci/hotplug/Kconfig"
 612
 613 source "drivers/pcmcia/Kconfig"
 614
 615 endmenu
 616
 617 endif
 618
 619 source "net/Kconfig"
 620
 621 source "drivers/Kconfig"
 622
 623 source "arch/ia64/hp/sim/Kconfig"
 624
 625 config MSPEC
 626         tristate "Memory special operations driver"
 627         depends on IA64
 628         select IA64_UNCACHED_ALLOCATOR
 629         help
 630           If you have an ia64 and you want to enable memory special
 631           operations support (formerly known as fetchop), say Y here,
 632           otherwise say N.
 633
 634 source "fs/Kconfig"
 635
 636 source "arch/ia64/Kconfig.debug"
 637
 638 source "security/Kconfig"
 639
 640 source "crypto/Kconfig"
 641
 642 source "lib/Kconfig"
 643
 644 config IOMMU_HELPER
 645         def_bool (IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB || IA64_GENERIC || SWIOTLB)