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