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 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 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         select ARCH_USE_CMPXCHG_LOCKREF
  47         default y
  48         help
  49           The Itanium Processor Family is Intel's 64-bit successor to
  50           the 32-bit X86 line.  The IA-64 Linux project has a home
  51           page at <http://www.linuxia64.org/> and a mailing list at
  52           <linux-ia64@vger.kernel.org>.
  53
  54 config 64BIT
  55         bool
  56         select ATA_NONSTANDARD if ATA
  57         default y
  58
  59 config ZONE_DMA
  60         def_bool y
  61         depends on !IA64_SGI_SN2
  62
  63 config QUICKLIST
  64         bool
  65         default y
  66
  67 config MMU
  68         bool
  69         default y
  70
  71 config ARCH_DMA_ADDR_T_64BIT
  72         def_bool y
  73
  74 config NEED_DMA_MAP_STATE
  75         def_bool y
  76
  77 config NEED_SG_DMA_LENGTH
  78         def_bool y
  79
  80 config SWIOTLB
  81        bool
  82
  83 config STACKTRACE_SUPPORT
  84         def_bool y
  85
  86 config GENERIC_LOCKBREAK
  87         def_bool n
  88
  89 config RWSEM_XCHGADD_ALGORITHM
  90         bool
  91         default y
  92
  93 config HUGETLB_PAGE_SIZE_VARIABLE
  94         bool
  95         depends on HUGETLB_PAGE
  96         default y
  97
  98 config GENERIC_CALIBRATE_DELAY
  99         bool
 100         default y
 101
 102 config HAVE_SETUP_PER_CPU_AREA
 103         def_bool y
 104
 105 config DMI
 106         bool
 107         default y
 108         select DMI_SCAN_MACHINE_NON_EFI_FALLBACK
 109
 110 config EFI
 111         bool
 112         select UCS2_STRING
 113         default y
 114
 115 config SCHED_OMIT_FRAME_POINTER
 116         bool
 117         default y
 118
 119 config IA64_UNCACHED_ALLOCATOR
 120         bool
 121         select GENERIC_ALLOCATOR
 122
 123 config ARCH_USES_PG_UNCACHED
 124         def_bool y
 125         depends on IA64_UNCACHED_ALLOCATOR
 126
 127 config AUDIT_ARCH
 128         bool
 129         default y
 130
 131 menuconfig PARAVIRT_GUEST
 132         bool "Paravirtualized guest support"
 133         depends on BROKEN
 134         help
 135           Say Y here to get to see options related to running Linux under
 136           various hypervisors.  This option alone does not add any kernel code.
 137
 138           If you say N, all options in this submenu will be skipped and disabled.
 139
 140 if PARAVIRT_GUEST
 141
 142 config PARAVIRT
 143         bool "Enable paravirtualization code"
 144         depends on PARAVIRT_GUEST
 145         default y
 146         help
 147           This changes the kernel so it can modify itself when it is run
 148           under a hypervisor, potentially improving performance significantly
 149           over full virtualization.  However, when run without a hypervisor
 150           the kernel is theoretically slower and slightly larger.
 151
 152 endif
 153
 154 choice
 155         prompt "System type"
 156         default IA64_GENERIC
 157
 158 config IA64_GENERIC
 159         bool "generic"
 160         select NUMA
 161         select ACPI_NUMA
 162         select SWIOTLB
 163         select PCI_MSI
 164         help
 165           This selects the system type of your hardware.  A "generic" kernel
 166           will run on any supported IA-64 system.  However, if you configure
 167           a kernel for your specific system, it will be faster and smaller.
 168
 169           generic               For any supported IA-64 system
 170           DIG-compliant         For DIG ("Developer's Interface Guide") compliant systems
 171           DIG+Intel+IOMMU       For DIG systems with Intel IOMMU
 172           HP-zx1/sx1000         For HP systems
 173           HP-zx1/sx1000+swiotlb For HP systems with (broken) DMA-constrained devices.
 174           SGI-SN2               For SGI Altix systems
 175           SGI-UV                For SGI UV systems
 176           Ski-simulator         For the HP simulator <http://www.hpl.hp.com/research/linux/ski/>
 177
 178           If you don't know what to do, choose "generic".
 179
 180 config IA64_DIG
 181         bool "DIG-compliant"
 182         select SWIOTLB
 183
 184 config IA64_DIG_VTD
 185         bool "DIG+Intel+IOMMU"
 186         select INTEL_IOMMU
 187         select PCI_MSI
 188
 189 config IA64_HP_ZX1
 190         bool "HP-zx1/sx1000"
 191         help
 192           Build a kernel that runs on HP zx1 and sx1000 systems.  This adds
 193           support for the HP I/O MMU.
 194
 195 config IA64_HP_ZX1_SWIOTLB
 196         bool "HP-zx1/sx1000 with software I/O TLB"
 197         select SWIOTLB
 198         help
 199           Build a kernel that runs on HP zx1 and sx1000 systems even when they
 200           have broken PCI devices which cannot DMA to full 32 bits.  Apart
 201           from support for the HP I/O MMU, this includes support for the software
 202           I/O TLB, which allows supporting the broken devices at the expense of
 203           wasting some kernel memory (about 2MB by default).
 204
 205 config IA64_SGI_SN2
 206         bool "SGI-SN2"
 207         select NUMA
 208         select ACPI_NUMA
 209         help
 210           Selecting this option will optimize the kernel for use on sn2 based
 211           systems, but the resulting kernel binary will not run on other
 212           types of ia64 systems.  If you have an SGI Altix system, it's safe
 213           to select this option.  If in doubt, select ia64 generic support
 214           instead.
 215
 216 config IA64_SGI_UV
 217         bool "SGI-UV"
 218         select NUMA
 219         select ACPI_NUMA
 220         select SWIOTLB
 221         help
 222           Selecting this option will optimize the kernel for use on UV based
 223           systems, but the resulting kernel binary will not run on other
 224           types of ia64 systems.  If you have an SGI UV system, it's safe
 225           to select this option.  If in doubt, select ia64 generic support
 226           instead.
 227
 228 config IA64_HP_SIM
 229         bool "Ski-simulator"
 230         select SWIOTLB
 231
 232 endchoice
 233
 234 choice
 235         prompt "Processor type"
 236         default ITANIUM
 237
 238 config ITANIUM
 239         bool "Itanium"
 240         help
 241           Select your IA-64 processor type.  The default is Itanium.
 242           This choice is safe for all IA-64 systems, but may not perform
 243           optimally on systems with, say, Itanium 2 or newer processors.
 244
 245 config MCKINLEY
 246         bool "Itanium 2"
 247         help
 248           Select this to configure for an Itanium 2 (McKinley) processor.
 249
 250 endchoice
 251
 252 choice
 253         prompt "Kernel page size"
 254         default IA64_PAGE_SIZE_16KB
 255
 256 config IA64_PAGE_SIZE_4KB
 257         bool "4KB"
 258         help
 259           This lets you select the page size of the kernel.  For best IA-64
 260           performance, a page size of 8KB or 16KB is recommended.  For best
 261           IA-32 compatibility, a page size of 4KB should be selected (the vast
 262           majority of IA-32 binaries work perfectly fine with a larger page
 263           size).  For Itanium 2 or newer systems, a page size of 64KB can also
 264           be selected.
 265
 266           4KB                For best IA-32 compatibility
 267           8KB                For best IA-64 performance
 268           16KB               For best IA-64 performance
 269           64KB               Requires Itanium 2 or newer processor.
 270
 271           If you don't know what to do, choose 16KB.
 272
 273 config IA64_PAGE_SIZE_8KB
 274         bool "8KB"
 275
 276 config IA64_PAGE_SIZE_16KB
 277         bool "16KB"
 278
 279 config IA64_PAGE_SIZE_64KB
 280         depends on !ITANIUM
 281         bool "64KB"
 282
 283 endchoice
 284
 285 choice
 286         prompt "Page Table Levels"
 287         default PGTABLE_3
 288
 289 config PGTABLE_3
 290         bool "3 Levels"
 291
 292 config PGTABLE_4
 293         depends on !IA64_PAGE_SIZE_64KB
 294         bool "4 Levels"
 295
 296 endchoice
 297
 298 if IA64_HP_SIM
 299 config HZ
 300         default 32
 301 endif
 302
 303 if !IA64_HP_SIM
 304 source kernel/Kconfig.hz
 305 endif
 306
 307 config IA64_BRL_EMU
 308         bool
 309         depends on ITANIUM
 310         default y
 311
 312 # align cache-sensitive data to 128 bytes
 313 config IA64_L1_CACHE_SHIFT
 314         int
 315         default "7" if MCKINLEY
 316         default "6" if ITANIUM
 317
 318 config IA64_CYCLONE
 319         bool "Cyclone (EXA) Time Source support"
 320         help
 321           Say Y here to enable support for IBM EXA Cyclone time source.
 322           If you're unsure, answer N.
 323
 324 config IOSAPIC
 325         bool
 326         depends on !IA64_HP_SIM
 327         default y
 328
 329 config FORCE_MAX_ZONEORDER
 330         int "MAX_ORDER (11 - 17)"  if !HUGETLB_PAGE
 331         range 11 17  if !HUGETLB_PAGE
 332         default "17" if HUGETLB_PAGE
 333         default "11"
 334
 335 config SMP
 336         bool "Symmetric multi-processing support"
 337         help
 338           This enables support for systems with more than one CPU. If you have
 339           a system with only one CPU, say N.  If you have a system with more
 340           than one CPU, say Y.
 341
 342           If you say N here, the kernel will run on single and multiprocessor
 343           systems, but will use only one CPU of a multiprocessor system.  If
 344           you say Y here, the kernel will run on many, but not all,
 345           single processor systems.  On a single processor system, the kernel
 346           will run faster if you say N here.
 347
 348           See also the SMP-HOWTO available at
 349           <http://www.tldp.org/docs.html#howto>.
 350
 351           If you don't know what to do here, say N.
 352
 353 config NR_CPUS
 354         int "Maximum number of CPUs (2-4096)"
 355         range 2 4096
 356         depends on SMP
 357         default "4096"
 358         help
 359           You should set this to the number of CPUs in your system, but
 360           keep in mind that a kernel compiled for, e.g., 2 CPUs will boot but
 361           only use 2 CPUs on a >2 CPU system.  Setting this to a value larger
 362           than 64 will cause the use of a CPU mask array, causing a small
 363           performance hit.
 364
 365 config HOTPLUG_CPU
 366         bool "Support for hot-pluggable CPUs"
 367         depends on SMP
 368         default n
 369         ---help---
 370           Say Y here to experiment with turning CPUs off and on.  CPUs
 371           can be controlled through /sys/devices/system/cpu/cpu#.
 372           Say N if you want to disable CPU hotplug.
 373
 374 config ARCH_ENABLE_MEMORY_HOTPLUG
 375         def_bool y
 376
 377 config ARCH_ENABLE_MEMORY_HOTREMOVE
 378         def_bool y
 379
 380 config SCHED_SMT
 381         bool "SMT scheduler support"
 382         depends on SMP
 383         help
 384           Improves the CPU scheduler's decision making when dealing with
 385           Intel IA64 chips with MultiThreading at a cost of slightly increased
 386           overhead in some places. If unsure say N here.
 387
 388 config PERMIT_BSP_REMOVE
 389         bool "Support removal of Bootstrap Processor"
 390         depends on HOTPLUG_CPU
 391         default n
 392         ---help---
 393         Say Y here if your platform SAL will support removal of BSP with HOTPLUG_CPU
 394         support.
 395
 396 config FORCE_CPEI_RETARGET
 397         bool "Force assumption that CPEI can be re-targeted"
 398         depends on PERMIT_BSP_REMOVE
 399         default n
 400         ---help---
 401         Say Y if you need to force the assumption that CPEI can be re-targeted to
 402         any cpu in the system. This hint is available via ACPI 3.0 specifications.
 403         Tiger4 systems are capable of re-directing CPEI to any CPU other than BSP.
 404         This option it useful to enable this feature on older BIOS's as well.
 405         You can also enable this by using boot command line option force_cpei=1.
 406
 407 source "kernel/Kconfig.preempt"
 408
 409 source "mm/Kconfig"
 410
 411 config ARCH_SELECT_MEMORY_MODEL
 412         def_bool y
 413
 414 config ARCH_DISCONTIGMEM_ENABLE
 415         def_bool y
 416         help
 417           Say Y to support efficient handling of discontiguous physical memory,
 418           for architectures which are either NUMA (Non-Uniform Memory Access)
 419           or have huge holes in the physical address space for other reasons.
 420           See <file:Documentation/vm/numa> for more.
 421
 422 config ARCH_FLATMEM_ENABLE
 423         def_bool y
 424
 425 config ARCH_SPARSEMEM_ENABLE
 426         def_bool y
 427         depends on ARCH_DISCONTIGMEM_ENABLE
 428         select SPARSEMEM_VMEMMAP_ENABLE
 429
 430 config ARCH_DISCONTIGMEM_DEFAULT
 431         def_bool y if (IA64_SGI_SN2 || IA64_GENERIC || IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB)
 432         depends on ARCH_DISCONTIGMEM_ENABLE
 433
 434 config NUMA
 435         bool "NUMA support"
 436         depends on !IA64_HP_SIM && !FLATMEM
 437         default y if IA64_SGI_SN2
 438         select ACPI_NUMA if ACPI
 439         help
 440           Say Y to compile the kernel to support NUMA (Non-Uniform Memory
 441           Access).  This option is for configuring high-end multiprocessor
 442           server systems.  If in doubt, say N.
 443
 444 config NODES_SHIFT
 445         int "Max num nodes shift(3-10)"
 446         range 3 10
 447         default "10"
 448         depends on NEED_MULTIPLE_NODES
 449         help
 450           This option specifies the maximum number of nodes in your SSI system.
 451           MAX_NUMNODES will be 2^(This value).
 452           If in doubt, use the default.
 453
 454 # VIRTUAL_MEM_MAP and FLAT_NODE_MEM_MAP are functionally equivalent.
 455 # VIRTUAL_MEM_MAP has been retained for historical reasons.
 456 config VIRTUAL_MEM_MAP
 457         bool "Virtual mem map"
 458         depends on !SPARSEMEM
 459         default y if !IA64_HP_SIM
 460         help
 461           Say Y to compile the kernel with support for a virtual mem map.
 462           This code also only takes effect if a memory hole of greater than
 463           1 Gb is found during boot.  You must turn this option on if you
 464           require the DISCONTIGMEM option for your machine. If you are
 465           unsure, say Y.
 466
 467 config HOLES_IN_ZONE
 468         bool
 469         default y if VIRTUAL_MEM_MAP
 470
 471 config HAVE_ARCH_EARLY_PFN_TO_NID
 472         def_bool NUMA && SPARSEMEM
 473
 474 config HAVE_ARCH_NODEDATA_EXTENSION
 475         def_bool y
 476         depends on NUMA
 477
 478 config USE_PERCPU_NUMA_NODE_ID
 479         def_bool y
 480         depends on NUMA
 481
 482 config HAVE_MEMORYLESS_NODES
 483         def_bool NUMA
 484
 485 config ARCH_PROC_KCORE_TEXT
 486         def_bool y
 487         depends on PROC_KCORE
 488
 489 config IA64_MCA_RECOVERY
 490         tristate "MCA recovery from errors other than TLB."
 491
 492 config PERFMON
 493         bool "Performance monitor support"
 494         help
 495           Selects whether support for the IA-64 performance monitor hardware
 496           is included in the kernel.  This makes some kernel data-structures a
 497           little bigger and slows down execution a bit, but it is generally
 498           a good idea to turn this on.  If you're unsure, say Y.
 499
 500 config IA64_PALINFO
 501         tristate "/proc/pal support"
 502         help
 503           If you say Y here, you are able to get PAL (Processor Abstraction
 504           Layer) information in /proc/pal.  This contains useful information
 505           about the processors in your systems, such as cache and TLB sizes
 506           and the PAL firmware version in use.
 507
 508           To use this option, you have to ensure that the "/proc file system
 509           support" (CONFIG_PROC_FS) is enabled, too.
 510
 511 config IA64_MC_ERR_INJECT
 512         tristate "MC error injection support"
 513         help
 514           Adds support for MC error injection. If enabled, the kernel
 515           will provide a sysfs interface for user applications to
 516           call MC error injection PAL procedures to inject various errors.
 517           This is a useful tool for MCA testing.
 518
 519           If you're unsure, do not select this option.
 520
 521 config SGI_SN
 522         def_bool y if (IA64_SGI_SN2 || IA64_GENERIC)
 523
 524 config IA64_ESI
 525         bool "ESI (Extensible SAL Interface) support"
 526         help
 527           If you say Y here, support is built into the kernel to
 528           make ESI calls.  ESI calls are used to support vendor-specific
 529           firmware extensions, such as the ability to inject memory-errors
 530           for test-purposes.  If you're unsure, say N.
 531
 532 config IA64_HP_AML_NFW
 533         bool "Support ACPI AML calls to native firmware"
 534         help
 535           This driver installs a global ACPI Operation Region handler for
 536           region 0xA1.  AML methods can use this OpRegion to call arbitrary
 537           native firmware functions.  The driver installs the OpRegion
 538           handler if there is an HPQ5001 device or if the user supplies
 539           the "force" module parameter, e.g., with the "aml_nfw.force"
 540           kernel command line option.
 541
 542 source "drivers/sn/Kconfig"
 543
 544 config KEXEC
 545         bool "kexec system call"
 546         depends on !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
 547         help
 548           kexec is a system call that implements the ability to shutdown your
 549           current kernel, and to start another kernel.  It is like a reboot
 550           but it is independent of the system firmware.   And like a reboot
 551           you can start any kernel with it, not just Linux.
 552
 553           The name comes from the similarity to the exec system call.
 554
 555           It is an ongoing process to be certain the hardware in a machine
 556           is properly shutdown, so do not be surprised if this code does not
 557           initially work for you.  As of this writing the exact hardware
 558           interface is strongly in flux, so no good recommendation can be
 559           made.
 560
 561 config CRASH_DUMP
 562           bool "kernel crash dumps"
 563           depends on IA64_MCA_RECOVERY && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
 564           help
 565             Generate crash dump after being started by kexec.
 566
 567 source "drivers/firmware/Kconfig"
 568
 569 source "fs/Kconfig.binfmt"
 570
 571 endmenu
 572
 573 menu "Power management and ACPI options"
 574
 575 source "kernel/power/Kconfig"
 576
 577 source "drivers/acpi/Kconfig"
 578
 579 if PM
 580 menu "CPU Frequency scaling"
 581 source "drivers/cpufreq/Kconfig"
 582 endmenu
 583 endif
 584
 585 endmenu
 586
 587 if !IA64_HP_SIM
 588
 589 menu "Bus options (PCI, PCMCIA)"
 590
 591 config PCI
 592         bool "PCI support"
 593         help
 594           Real IA-64 machines all have PCI/PCI-X/PCI Express busses.  Say Y
 595           here unless you are using a simulator without PCI support.
 596
 597 config PCI_DOMAINS
 598         def_bool PCI
 599
 600 config PCI_SYSCALL
 601         def_bool PCI
 602
 603 source "drivers/pci/pcie/Kconfig"
 604
 605 source "drivers/pci/Kconfig"
 606
 607 source "drivers/pci/hotplug/Kconfig"
 608
 609 source "drivers/pcmcia/Kconfig"
 610
 611 endmenu
 612
 613 endif
 614
 615 source "net/Kconfig"
 616
 617 source "drivers/Kconfig"
 618
 619 source "arch/ia64/hp/sim/Kconfig"
 620
 621 config MSPEC
 622         tristate "Memory special operations driver"
 623         depends on IA64
 624         select IA64_UNCACHED_ALLOCATOR
 625         help
 626           If you have an ia64 and you want to enable memory special
 627           operations support (formerly known as fetchop), say Y here,
 628           otherwise say N.
 629
 630 source "fs/Kconfig"
 631
 632 source "arch/ia64/Kconfig.debug"
 633
 634 source "security/Kconfig"
 635
 636 source "crypto/Kconfig"
 637
 638 source "arch/ia64/kvm/Kconfig"
 639
 640 source "lib/Kconfig"
 641
 642 config IOMMU_HELPER
 643         def_bool (IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB || IA64_GENERIC || SWIOTLB)