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