arch/ia64/Kconfig

   1 #
   2 # For a description of the syntax of this configuration file,
   3 # see Documentation/kbuild/kconfig-language.txt.
   4 #
   5
   6 mainmenu "IA-64 Linux Kernel Configuration"
   7
   8 source "init/Kconfig"
   9
  10 menu "Processor type and features"
  11
  12 config IA64
  13         bool
  14         select PCI if (!IA64_HP_SIM)
  15         select ACPI if (!IA64_HP_SIM)
  16         select PM if (!IA64_HP_SIM)
  17         select ARCH_SUPPORTS_MSI
  18         default y
  19         help
  20           The Itanium Processor Family is Intel's 64-bit successor to
  21           the 32-bit X86 line.  The IA-64 Linux project has a home
  22           page at <http://www.linuxia64.org/> and a mailing list at
  23           <linux-ia64@vger.kernel.org>.
  24
  25 config 64BIT
  26         bool
  27         select ATA_NONSTANDARD if ATA
  28         default y
  29
  30 config ZONE_DMA
  31         def_bool y
  32         depends on !IA64_SGI_SN2
  33
  34 config QUICKLIST
  35         bool
  36         default y
  37
  38 config MMU
  39         bool
  40         default y
  41
  42 config SWIOTLB
  43        bool
  44
  45 config GENERIC_LOCKBREAK
  46         bool
  47         default y
  48         depends on SMP && PREEMPT
  49
  50 config RWSEM_XCHGADD_ALGORITHM
  51         bool
  52         default y
  53
  54 config ARCH_HAS_ILOG2_U32
  55         bool
  56         default n
  57
  58 config ARCH_HAS_ILOG2_U64
  59         bool
  60         default n
  61
  62 config HUGETLB_PAGE_SIZE_VARIABLE
  63         bool
  64         depends on HUGETLB_PAGE
  65         default y
  66
  67 config GENERIC_FIND_NEXT_BIT
  68         bool
  69         default y
  70
  71 config GENERIC_CALIBRATE_DELAY
  72         bool
  73         default y
  74
  75 config GENERIC_TIME
  76         bool
  77         default y
  78
  79 config GENERIC_TIME_VSYSCALL
  80         bool
  81         default y
  82
  83 config HAVE_SETUP_PER_CPU_AREA
  84         def_bool y
  85
  86 config DMI
  87         bool
  88         default y
  89
  90 config EFI
  91         bool
  92         default y
  93
  94 config GENERIC_IOMAP
  95         bool
  96         default y
  97
  98 config SCHED_NO_NO_OMIT_FRAME_POINTER
  99         bool
 100         default y
 101
 102 config IA64_UNCACHED_ALLOCATOR
 103         bool
 104         select GENERIC_ALLOCATOR
 105
 106 config AUDIT_ARCH
 107         bool
 108         default y
 109
 110 choice
 111         prompt "System type"
 112         default IA64_GENERIC
 113
 114 config IA64_GENERIC
 115         bool "generic"
 116         select NUMA
 117         select ACPI_NUMA
 118         select SWIOTLB
 119         help
 120           This selects the system type of your hardware.  A "generic" kernel
 121           will run on any supported IA-64 system.  However, if you configure
 122           a kernel for your specific system, it will be faster and smaller.
 123
 124           generic               For any supported IA-64 system
 125           DIG-compliant         For DIG ("Developer's Interface Guide") compliant systems
 126           HP-zx1/sx1000         For HP systems
 127           HP-zx1/sx1000+swiotlb For HP systems with (broken) DMA-constrained devices.
 128           SGI-SN2               For SGI Altix systems
 129           Ski-simulator         For the HP simulator <http://www.hpl.hp.com/research/linux/ski/>
 130
 131           If you don't know what to do, choose "generic".
 132
 133 config IA64_DIG
 134         bool "DIG-compliant"
 135         select SWIOTLB
 136
 137 config IA64_HP_ZX1
 138         bool "HP-zx1/sx1000"
 139         help
 140           Build a kernel that runs on HP zx1 and sx1000 systems.  This adds
 141           support for the HP I/O MMU.
 142
 143 config IA64_HP_ZX1_SWIOTLB
 144         bool "HP-zx1/sx1000 with software I/O TLB"
 145         select SWIOTLB
 146         help
 147           Build a kernel that runs on HP zx1 and sx1000 systems even when they
 148           have broken PCI devices which cannot DMA to full 32 bits.  Apart
 149           from support for the HP I/O MMU, this includes support for the software
 150           I/O TLB, which allows supporting the broken devices at the expense of
 151           wasting some kernel memory (about 2MB by default).
 152
 153 config IA64_SGI_SN2
 154         bool "SGI-SN2"
 155         help
 156           Selecting this option will optimize the kernel for use on sn2 based
 157           systems, but the resulting kernel binary will not run on other
 158           types of ia64 systems.  If you have an SGI Altix system, it's safe
 159           to select this option.  If in doubt, select ia64 generic support
 160           instead.
 161
 162 config IA64_HP_SIM
 163         bool "Ski-simulator"
 164         select SWIOTLB
 165
 166 endchoice
 167
 168 choice
 169         prompt "Processor type"
 170         default ITANIUM
 171
 172 config ITANIUM
 173         bool "Itanium"
 174         help
 175           Select your IA-64 processor type.  The default is Itanium.
 176           This choice is safe for all IA-64 systems, but may not perform
 177           optimally on systems with, say, Itanium 2 or newer processors.
 178
 179 config MCKINLEY
 180         bool "Itanium 2"
 181         help
 182           Select this to configure for an Itanium 2 (McKinley) processor.
 183
 184 endchoice
 185
 186 choice
 187         prompt "Kernel page size"
 188         default IA64_PAGE_SIZE_16KB
 189
 190 config IA64_PAGE_SIZE_4KB
 191         bool "4KB"
 192         help
 193           This lets you select the page size of the kernel.  For best IA-64
 194           performance, a page size of 8KB or 16KB is recommended.  For best
 195           IA-32 compatibility, a page size of 4KB should be selected (the vast
 196           majority of IA-32 binaries work perfectly fine with a larger page
 197           size).  For Itanium 2 or newer systems, a page size of 64KB can also
 198           be selected.
 199
 200           4KB                For best IA-32 compatibility
 201           8KB                For best IA-64 performance
 202           16KB               For best IA-64 performance
 203           64KB               Requires Itanium 2 or newer processor.
 204
 205           If you don't know what to do, choose 16KB.
 206
 207 config IA64_PAGE_SIZE_8KB
 208         bool "8KB"
 209
 210 config IA64_PAGE_SIZE_16KB
 211         bool "16KB"
 212
 213 config IA64_PAGE_SIZE_64KB
 214         depends on !ITANIUM
 215         bool "64KB"
 216
 217 endchoice
 218
 219 choice
 220         prompt "Page Table Levels"
 221         default PGTABLE_3
 222
 223 config PGTABLE_3
 224         bool "3 Levels"
 225
 226 config PGTABLE_4
 227         depends on !IA64_PAGE_SIZE_64KB
 228         bool "4 Levels"
 229
 230 endchoice
 231
 232 source kernel/Kconfig.hz
 233
 234 config IA64_BRL_EMU
 235         bool
 236         depends on ITANIUM
 237         default y
 238
 239 # align cache-sensitive data to 128 bytes
 240 config IA64_L1_CACHE_SHIFT
 241         int
 242         default "7" if MCKINLEY
 243         default "6" if ITANIUM
 244
 245 config IA64_CYCLONE
 246         bool "Cyclone (EXA) Time Source support"
 247         help
 248           Say Y here to enable support for IBM EXA Cyclone time source.
 249           If you're unsure, answer N.
 250
 251 config IOSAPIC
 252         bool
 253         depends on !IA64_HP_SIM
 254         default y
 255
 256 config IA64_SGI_SN_XP
 257         tristate "Support communication between SGI SSIs"
 258         depends on IA64_GENERIC || IA64_SGI_SN2
 259         select IA64_UNCACHED_ALLOCATOR
 260         help
 261           An SGI machine can be divided into multiple Single System
 262           Images which act independently of each other and have
 263           hardware based memory protection from the others.  Enabling
 264           this feature will allow for direct communication between SSIs
 265           based on a network adapter and DMA messaging.
 266
 267 config FORCE_MAX_ZONEORDER
 268         int "MAX_ORDER (11 - 17)"  if !HUGETLB_PAGE
 269         range 11 17  if !HUGETLB_PAGE
 270         default "17" if HUGETLB_PAGE
 271         default "11"
 272
 273 config SMP
 274         bool "Symmetric multi-processing support"
 275         help
 276           This enables support for systems with more than one CPU. If you have
 277           a system with only one CPU, say N.  If you have a system with more
 278           than one CPU, say Y.
 279
 280           If you say N here, the kernel will run on single and multiprocessor
 281           systems, but will use only one CPU of a multiprocessor system.  If
 282           you say Y here, the kernel will run on many, but not all,
 283           single processor systems.  On a single processor system, the kernel
 284           will run faster if you say N here.
 285
 286           See also the SMP-HOWTO available at
 287           <http://www.tldp.org/docs.html#howto>.
 288
 289           If you don't know what to do here, say N.
 290
 291 config NR_CPUS
 292         int "Maximum number of CPUs (2-1024)"
 293         range 2 1024
 294         depends on SMP
 295         default "1024"
 296         help
 297           You should set this to the number of CPUs in your system, but
 298           keep in mind that a kernel compiled for, e.g., 2 CPUs will boot but
 299           only use 2 CPUs on a >2 CPU system.  Setting this to a value larger
 300           than 64 will cause the use of a CPU mask array, causing a small
 301           performance hit.
 302
 303 config HOTPLUG_CPU
 304         bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
 305         depends on SMP && EXPERIMENTAL
 306         select HOTPLUG
 307         default n
 308         ---help---
 309           Say Y here to experiment with turning CPUs off and on.  CPUs
 310           can be controlled through /sys/devices/system/cpu/cpu#.
 311           Say N if you want to disable CPU hotplug.
 312
 313 config ARCH_ENABLE_MEMORY_HOTPLUG
 314         def_bool y
 315
 316 config ARCH_ENABLE_MEMORY_HOTREMOVE
 317         def_bool y
 318
 319 config SCHED_SMT
 320         bool "SMT scheduler support"
 321         depends on SMP
 322         help
 323           Improves the CPU scheduler's decision making when dealing with
 324           Intel IA64 chips with MultiThreading at a cost of slightly increased
 325           overhead in some places. If unsure say N here.
 326
 327 config PERMIT_BSP_REMOVE
 328         bool "Support removal of Bootstrap Processor"
 329         depends on HOTPLUG_CPU
 330         default n
 331         ---help---
 332         Say Y here if your platform SAL will support removal of BSP with HOTPLUG_CPU
 333         support.
 334
 335 config FORCE_CPEI_RETARGET
 336         bool "Force assumption that CPEI can be re-targetted"
 337         depends on PERMIT_BSP_REMOVE
 338         default n
 339         ---help---
 340         Say Y if you need to force the assumption that CPEI can be re-targetted to
 341         any cpu in the system. This hint is available via ACPI 3.0 specifications.
 342         Tiger4 systems are capable of re-directing CPEI to any CPU other than BSP.
 343         This option it useful to enable this feature on older BIOS's as well.
 344         You can also enable this by using boot command line option force_cpei=1.
 345
 346 source "kernel/Kconfig.preempt"
 347
 348 source "mm/Kconfig"
 349
 350 config ARCH_SELECT_MEMORY_MODEL
 351         def_bool y
 352
 353 config ARCH_DISCONTIGMEM_ENABLE
 354         def_bool y
 355         help
 356           Say Y to support efficient handling of discontiguous physical memory,
 357           for architectures which are either NUMA (Non-Uniform Memory Access)
 358           or have huge holes in the physical address space for other reasons.
 359           See <file:Documentation/vm/numa> for more.
 360
 361 config ARCH_FLATMEM_ENABLE
 362         def_bool y
 363
 364 config ARCH_SPARSEMEM_ENABLE
 365         def_bool y
 366         depends on ARCH_DISCONTIGMEM_ENABLE
 367         select SPARSEMEM_VMEMMAP_ENABLE
 368
 369 config ARCH_DISCONTIGMEM_DEFAULT
 370         def_bool y if (IA64_SGI_SN2 || IA64_GENERIC || IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB)
 371         depends on ARCH_DISCONTIGMEM_ENABLE
 372
 373 config NUMA
 374         bool "NUMA support"
 375         depends on !IA64_HP_SIM && !FLATMEM
 376         default y if IA64_SGI_SN2
 377         select ACPI_NUMA if ACPI
 378         help
 379           Say Y to compile the kernel to support NUMA (Non-Uniform Memory
 380           Access).  This option is for configuring high-end multiprocessor
 381           server systems.  If in doubt, say N.
 382
 383 config NODES_SHIFT
 384         int "Max num nodes shift(3-10)"
 385         range 3 10
 386         default "10"
 387         depends on NEED_MULTIPLE_NODES
 388         help
 389           This option specifies the maximum number of nodes in your SSI system.
 390           MAX_NUMNODES will be 2^(This value).
 391           If in doubt, use the default.
 392
 393 config ARCH_POPULATES_NODE_MAP
 394         def_bool y
 395
 396 # VIRTUAL_MEM_MAP and FLAT_NODE_MEM_MAP are functionally equivalent.
 397 # VIRTUAL_MEM_MAP has been retained for historical reasons.
 398 config VIRTUAL_MEM_MAP
 399         bool "Virtual mem map"
 400         depends on !SPARSEMEM
 401         default y if !IA64_HP_SIM
 402         help
 403           Say Y to compile the kernel with support for a virtual mem map.
 404           This code also only takes effect if a memory hole of greater than
 405           1 Gb is found during boot.  You must turn this option on if you
 406           require the DISCONTIGMEM option for your machine. If you are
 407           unsure, say Y.
 408
 409 config HOLES_IN_ZONE
 410         bool
 411         default y if VIRTUAL_MEM_MAP
 412
 413 config HAVE_ARCH_EARLY_PFN_TO_NID
 414         def_bool y
 415         depends on NEED_MULTIPLE_NODES
 416
 417 config HAVE_ARCH_NODEDATA_EXTENSION
 418         def_bool y
 419         depends on NUMA
 420
 421 config IA32_SUPPORT
 422         bool "Support for Linux/x86 binaries"
 423         help
 424           IA-64 processors can execute IA-32 (X86) instructions.  By
 425           saying Y here, the kernel will include IA-32 system call
 426           emulation support which makes it possible to transparently
 427           run IA-32 Linux binaries on an IA-64 Linux system.
 428           If in doubt, say Y.
 429
 430 config COMPAT
 431         bool
 432         depends on IA32_SUPPORT
 433         default y
 434
 435 config COMPAT_FOR_U64_ALIGNMENT
 436         def_bool COMPAT
 437
 438 config IA64_MCA_RECOVERY
 439         tristate "MCA recovery from errors other than TLB."
 440
 441 config PERFMON
 442         bool "Performance monitor support"
 443         help
 444           Selects whether support for the IA-64 performance monitor hardware
 445           is included in the kernel.  This makes some kernel data-structures a
 446           little bigger and slows down execution a bit, but it is generally
 447           a good idea to turn this on.  If you're unsure, say Y.
 448
 449 config IA64_PALINFO
 450         tristate "/proc/pal support"
 451         help
 452           If you say Y here, you are able to get PAL (Processor Abstraction
 453           Layer) information in /proc/pal.  This contains useful information
 454           about the processors in your systems, such as cache and TLB sizes
 455           and the PAL firmware version in use.
 456
 457           To use this option, you have to ensure that the "/proc file system
 458           support" (CONFIG_PROC_FS) is enabled, too.
 459
 460 config IA64_MC_ERR_INJECT
 461         tristate "MC error injection support"
 462         help
 463           Adds support for MC error injection. If enabled, the kernel
 464           will provide a sysfs interface for user applications to
 465           call MC error injection PAL procedures to inject various errors.
 466           This is a useful tool for MCA testing.
 467
 468           If you're unsure, do not select this option.
 469
 470 config SGI_SN
 471         def_bool y if (IA64_SGI_SN2 || IA64_GENERIC)
 472
 473 config IA64_ESI
 474         bool "ESI (Extensible SAL Interface) support"
 475         help
 476           If you say Y here, support is built into the kernel to
 477           make ESI calls.  ESI calls are used to support vendor-specific
 478           firmware extensions, such as the ability to inject memory-errors
 479           for test-purposes.  If you're unsure, say N.
 480
 481 config IA64_HP_AML_NFW
 482         bool "Support ACPI AML calls to native firmware"
 483         help
 484           This driver installs a global ACPI Operation Region handler for
 485           region 0xA1.  AML methods can use this OpRegion to call arbitrary
 486           native firmware functions.  The driver installs the OpRegion
 487           handler if there is an HPQ5001 device or if the user supplies
 488           the "force" module parameter, e.g., with the "aml_nfw.force"
 489           kernel command line option.
 490
 491 source "drivers/sn/Kconfig"
 492
 493 config KEXEC
 494         bool "kexec system call (EXPERIMENTAL)"
 495         depends on EXPERIMENTAL && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
 496         help
 497           kexec is a system call that implements the ability to shutdown your
 498           current kernel, and to start another kernel.  It is like a reboot
 499           but it is independent of the system firmware.   And like a reboot
 500           you can start any kernel with it, not just Linux.
 501
 502           The name comes from the similarity to the exec system call.
 503
 504           It is an ongoing process to be certain the hardware in a machine
 505           is properly shutdown, so do not be surprised if this code does not
 506           initially work for you.  It may help to enable device hotplugging
 507           support.  As of this writing the exact hardware interface is
 508           strongly in flux, so no good recommendation can be made.
 509
 510 config CRASH_DUMP
 511           bool "kernel crash dumps (EXPERIMENTAL)"
 512           depends on EXPERIMENTAL && IA64_MCA_RECOVERY && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
 513           help
 514             Generate crash dump after being started by kexec.
 515
 516 source "drivers/firmware/Kconfig"
 517
 518 source "fs/Kconfig.binfmt"
 519
 520 endmenu
 521
 522 menu "Power management and ACPI"
 523
 524 source "kernel/power/Kconfig"
 525
 526 source "drivers/acpi/Kconfig"
 527
 528 if PM
 529
 530 source "arch/ia64/kernel/cpufreq/Kconfig"
 531
 532 endif
 533
 534 endmenu
 535
 536 if !IA64_HP_SIM
 537
 538 menu "Bus options (PCI, PCMCIA)"
 539
 540 config PCI
 541         bool "PCI support"
 542         help
 543           Real IA-64 machines all have PCI/PCI-X/PCI Express busses.  Say Y
 544           here unless you are using a simulator without PCI support.
 545
 546 config PCI_DOMAINS
 547         def_bool PCI
 548
 549 config PCI_SYSCALL
 550         def_bool PCI
 551
 552 source "drivers/pci/pcie/Kconfig"
 553
 554 source "drivers/pci/Kconfig"
 555
 556 source "drivers/pci/hotplug/Kconfig"
 557
 558 source "drivers/pcmcia/Kconfig"
 559
 560 endmenu
 561
 562 endif
 563
 564 source "net/Kconfig"
 565
 566 source "drivers/Kconfig"
 567
 568 config MSPEC
 569         tristate "Memory special operations driver"
 570         depends on IA64
 571         select IA64_UNCACHED_ALLOCATOR
 572         help
 573           If you have an ia64 and you want to enable memory special
 574           operations support (formerly known as fetchop), say Y here,
 575           otherwise say N.
 576
 577 source "fs/Kconfig"
 578
 579 source "lib/Kconfig"
 580
 581 #
 582 # Use the generic interrupt handling code in kernel/irq/:
 583 #
 584 config GENERIC_HARDIRQS
 585         bool
 586         default y
 587
 588 config GENERIC_IRQ_PROBE
 589         bool
 590         default y
 591
 592 config GENERIC_PENDING_IRQ
 593         bool
 594         depends on GENERIC_HARDIRQS && SMP
 595         default y
 596
 597 config IRQ_PER_CPU
 598         bool
 599         default y
 600
 601 source "arch/ia64/hp/sim/Kconfig"
 602
 603 source "kernel/Kconfig.instrumentation"
 604
 605 source "arch/ia64/Kconfig.debug"
 606
 607 source "security/Kconfig"
 608
 609 source "crypto/Kconfig"