arch/ia64/Kconfig

   1 config PGTABLE_LEVELS
   2         int "Page Table Levels" if !IA64_PAGE_SIZE_64KB
   3         range 3 4 if !IA64_PAGE_SIZE_64KB
   4         default 3
   5
   6 source "init/Kconfig"
   7
   8 source "kernel/Kconfig.freezer"
   9
  10 menu "Processor type and features"
  11
  12 config IA64
  13         bool
  14         select ARCH_MIGHT_HAVE_PC_PARPORT
  15         select ARCH_MIGHT_HAVE_PC_SERIO
  16         select PCI if (!IA64_HP_SIM)
  17         select ACPI if (!IA64_HP_SIM)
  18         select ARCH_MIGHT_HAVE_ACPI_PDC if ACPI
  19         select HAVE_UNSTABLE_SCHED_CLOCK
  20         select HAVE_IDE
  21         select HAVE_OPROFILE
  22         select HAVE_KPROBES
  23         select HAVE_KRETPROBES
  24         select HAVE_FTRACE_MCOUNT_RECORD
  25         select HAVE_DYNAMIC_FTRACE if (!ITANIUM)
  26         select HAVE_FUNCTION_TRACER
  27         select HAVE_DMA_ATTRS
  28         select TTY
  29         select HAVE_ARCH_TRACEHOOK
  30         select HAVE_DMA_API_DEBUG
  31         select HAVE_MEMBLOCK
  32         select HAVE_MEMBLOCK_NODE_MAP
  33         select HAVE_VIRT_CPU_ACCOUNTING
  34         select ARCH_HAS_SG_CHAIN
  35         select VIRT_TO_BUS
  36         select ARCH_DISCARD_MEMBLOCK
  37         select GENERIC_IRQ_PROBE
  38         select GENERIC_PENDING_IRQ if SMP
  39         select GENERIC_IRQ_SHOW
  40         select GENERIC_IRQ_LEGACY
  41         select ARCH_WANT_OPTIONAL_GPIOLIB
  42         select ARCH_HAVE_NMI_SAFE_CMPXCHG
  43         select GENERIC_IOMAP
  44         select GENERIC_SMP_IDLE_THREAD
  45         select ARCH_INIT_TASK
  46         select ARCH_TASK_STRUCT_ALLOCATOR
  47         select ARCH_THREAD_INFO_ALLOCATOR
  48         select ARCH_CLOCKSOURCE_DATA
  49         select GENERIC_TIME_VSYSCALL_OLD
  50         select SYSCTL_ARCH_UNALIGN_NO_WARN
  51         select HAVE_MOD_ARCH_SPECIFIC
  52         select MODULES_USE_ELF_RELA
  53         select ARCH_USE_CMPXCHG_LOCKREF
  54         select HAVE_ARCH_AUDITSYSCALL
  55         default y
  56         help
  57           The Itanium Processor Family is Intel's 64-bit successor to
  58           the 32-bit X86 line.  The IA-64 Linux project has a home
  59           page at <http://www.linuxia64.org/> and a mailing list at
  60           <linux-ia64@vger.kernel.org>.
  61
  62 config 64BIT
  63         bool
  64         select ATA_NONSTANDARD if ATA
  65         default y
  66
  67 config ZONE_DMA
  68         def_bool y
  69         depends on !IA64_SGI_SN2
  70
  71 config QUICKLIST
  72         bool
  73         default y
  74
  75 config MMU
  76         bool
  77         default y
  78
  79 config ARCH_DMA_ADDR_T_64BIT
  80         def_bool y
  81
  82 config NEED_DMA_MAP_STATE
  83         def_bool y
  84
  85 config NEED_SG_DMA_LENGTH
  86         def_bool y
  87
  88 config SWIOTLB
  89        bool
  90
  91 config STACKTRACE_SUPPORT
  92         def_bool y
  93
  94 config GENERIC_LOCKBREAK
  95         def_bool n
  96
  97 config RWSEM_XCHGADD_ALGORITHM
  98         bool
  99         default y
 100
 101 config HUGETLB_PAGE_SIZE_VARIABLE
 102         bool
 103         depends on HUGETLB_PAGE
 104         default y
 105
 106 config GENERIC_CALIBRATE_DELAY
 107         bool
 108         default y
 109
 110 config HAVE_SETUP_PER_CPU_AREA
 111         def_bool y
 112
 113 config DMI
 114         bool
 115         default y
 116         select DMI_SCAN_MACHINE_NON_EFI_FALLBACK
 117
 118 config EFI
 119         bool
 120         select UCS2_STRING
 121         default y
 122
 123 config SCHED_OMIT_FRAME_POINTER
 124         bool
 125         default y
 126
 127 config IA64_UNCACHED_ALLOCATOR
 128         bool
 129         select GENERIC_ALLOCATOR
 130
 131 config ARCH_USES_PG_UNCACHED
 132         def_bool y
 133         depends on IA64_UNCACHED_ALLOCATOR
 134
 135 config AUDIT_ARCH
 136         bool
 137         default y
 138
 139 menuconfig PARAVIRT_GUEST
 140         bool "Paravirtualized guest support"
 141         depends on BROKEN
 142         help
 143           Say Y here to get to see options related to running Linux under
 144           various hypervisors.  This option alone does not add any kernel code.
 145
 146           If you say N, all options in this submenu will be skipped and disabled.
 147
 148 if PARAVIRT_GUEST
 149
 150 config PARAVIRT
 151         bool "Enable paravirtualization code"
 152         depends on PARAVIRT_GUEST
 153         default y
 154         help
 155           This changes the kernel so it can modify itself when it is run
 156           under a hypervisor, potentially improving performance significantly
 157           over full virtualization.  However, when run without a hypervisor
 158           the kernel is theoretically slower and slightly larger.
 159
 160 endif
 161
 162 choice
 163         prompt "System type"
 164         default IA64_GENERIC
 165
 166 config IA64_GENERIC
 167         bool "generic"
 168         select NUMA
 169         select ACPI_NUMA
 170         select SWIOTLB
 171         select PCI_MSI
 172         help
 173           This selects the system type of your hardware.  A "generic" kernel
 174           will run on any supported IA-64 system.  However, if you configure
 175           a kernel for your specific system, it will be faster and smaller.
 176
 177           generic               For any supported IA-64 system
 178           DIG-compliant         For DIG ("Developer's Interface Guide") compliant systems
 179           DIG+Intel+IOMMU       For DIG systems with Intel IOMMU
 180           HP-zx1/sx1000         For HP systems
 181           HP-zx1/sx1000+swiotlb For HP systems with (broken) DMA-constrained devices.
 182           SGI-SN2               For SGI Altix systems
 183           SGI-UV                For SGI UV systems
 184           Ski-simulator         For the HP simulator <http://www.hpl.hp.com/research/linux/ski/>
 185
 186           If you don't know what to do, choose "generic".
 187
 188 config IA64_DIG
 189         bool "DIG-compliant"
 190         select SWIOTLB
 191
 192 config IA64_DIG_VTD
 193         bool "DIG+Intel+IOMMU"
 194         select INTEL_IOMMU
 195         select PCI_MSI
 196
 197 config IA64_HP_ZX1
 198         bool "HP-zx1/sx1000"
 199         help
 200           Build a kernel that runs on HP zx1 and sx1000 systems.  This adds
 201           support for the HP I/O MMU.
 202
 203 config IA64_HP_ZX1_SWIOTLB
 204         bool "HP-zx1/sx1000 with software I/O TLB"
 205         select SWIOTLB
 206         help
 207           Build a kernel that runs on HP zx1 and sx1000 systems even when they
 208           have broken PCI devices which cannot DMA to full 32 bits.  Apart
 209           from support for the HP I/O MMU, this includes support for the software
 210           I/O TLB, which allows supporting the broken devices at the expense of
 211           wasting some kernel memory (about 2MB by default).
 212
 213 config IA64_SGI_SN2
 214         bool "SGI-SN2"
 215         select NUMA
 216         select ACPI_NUMA
 217         help
 218           Selecting this option will optimize the kernel for use on sn2 based
 219           systems, but the resulting kernel binary will not run on other
 220           types of ia64 systems.  If you have an SGI Altix system, it's safe
 221           to select this option.  If in doubt, select ia64 generic support
 222           instead.
 223
 224 config IA64_SGI_UV
 225         bool "SGI-UV"
 226         select NUMA
 227         select ACPI_NUMA
 228         select SWIOTLB
 229         help
 230           Selecting this option will optimize the kernel for use on UV based
 231           systems, but the resulting kernel binary will not run on other
 232           types of ia64 systems.  If you have an SGI UV system, it's safe
 233           to select this option.  If in doubt, select ia64 generic support
 234           instead.
 235
 236 config IA64_HP_SIM
 237         bool "Ski-simulator"
 238         select SWIOTLB
 239         depends on !PM
 240
 241 endchoice
 242
 243 choice
 244         prompt "Processor type"
 245         default ITANIUM
 246
 247 config ITANIUM
 248         bool "Itanium"
 249         help
 250           Select your IA-64 processor type.  The default is Itanium.
 251           This choice is safe for all IA-64 systems, but may not perform
 252           optimally on systems with, say, Itanium 2 or newer processors.
 253
 254 config MCKINLEY
 255         bool "Itanium 2"
 256         help
 257           Select this to configure for an Itanium 2 (McKinley) processor.
 258
 259 endchoice
 260
 261 choice
 262         prompt "Kernel page size"
 263         default IA64_PAGE_SIZE_16KB
 264
 265 config IA64_PAGE_SIZE_4KB
 266         bool "4KB"
 267         help
 268           This lets you select the page size of the kernel.  For best IA-64
 269           performance, a page size of 8KB or 16KB is recommended.  For best
 270           IA-32 compatibility, a page size of 4KB should be selected (the vast
 271           majority of IA-32 binaries work perfectly fine with a larger page
 272           size).  For Itanium 2 or newer systems, a page size of 64KB can also
 273           be selected.
 274
 275           4KB                For best IA-32 compatibility
 276           8KB                For best IA-64 performance
 277           16KB               For best IA-64 performance
 278           64KB               Requires Itanium 2 or newer processor.
 279
 280           If you don't know what to do, choose 16KB.
 281
 282 config IA64_PAGE_SIZE_8KB
 283         bool "8KB"
 284
 285 config IA64_PAGE_SIZE_16KB
 286         bool "16KB"
 287
 288 config IA64_PAGE_SIZE_64KB
 289         depends on !ITANIUM
 290         bool "64KB"
 291
 292 endchoice
 293
 294 if IA64_HP_SIM
 295 config HZ
 296         default 32
 297 endif
 298
 299 if !IA64_HP_SIM
 300 source kernel/Kconfig.hz
 301 endif
 302
 303 config IA64_BRL_EMU
 304         bool
 305         depends on ITANIUM
 306         default y
 307
 308 # align cache-sensitive data to 128 bytes
 309 config IA64_L1_CACHE_SHIFT
 310         int
 311         default "7" if MCKINLEY
 312         default "6" if ITANIUM
 313
 314 config IA64_CYCLONE
 315         bool "Cyclone (EXA) Time Source support"
 316         help
 317           Say Y here to enable support for IBM EXA Cyclone time source.
 318           If you're unsure, answer N.
 319
 320 config IOSAPIC
 321         bool
 322         depends on !IA64_HP_SIM
 323         default y
 324
 325 config FORCE_MAX_ZONEORDER
 326         int "MAX_ORDER (11 - 17)"  if !HUGETLB_PAGE
 327         range 11 17  if !HUGETLB_PAGE
 328         default "17" if HUGETLB_PAGE
 329         default "11"
 330
 331 config SMP
 332         bool "Symmetric multi-processing support"
 333         help
 334           This enables support for systems with more than one CPU. If you have
 335           a system with only one CPU, say N.  If you have a system with more
 336           than one CPU, say Y.
 337
 338           If you say N here, the kernel will run on single and multiprocessor
 339           systems, but will use only one CPU of a multiprocessor system.  If
 340           you say Y here, the kernel will run on many, but not all,
 341           single processor systems.  On a single processor system, the kernel
 342           will run faster if you say N here.
 343
 344           See also the SMP-HOWTO available at
 345           <http://www.tldp.org/docs.html#howto>.
 346
 347           If you don't know what to do here, say N.
 348
 349 config NR_CPUS
 350         int "Maximum number of CPUs (2-4096)"
 351         range 2 4096
 352         depends on SMP
 353         default "4096"
 354         help
 355           You should set this to the number of CPUs in your system, but
 356           keep in mind that a kernel compiled for, e.g., 2 CPUs will boot but
 357           only use 2 CPUs on a >2 CPU system.  Setting this to a value larger
 358           than 64 will cause the use of a CPU mask array, causing a small
 359           performance hit.
 360
 361 config HOTPLUG_CPU
 362         bool "Support for hot-pluggable CPUs"
 363         depends on SMP
 364         default n
 365         ---help---
 366           Say Y here to experiment with turning CPUs off and on.  CPUs
 367           can be controlled through /sys/devices/system/cpu/cpu#.
 368           Say N if you want to disable CPU hotplug.
 369
 370 config ARCH_ENABLE_MEMORY_HOTPLUG
 371         def_bool y
 372
 373 config ARCH_ENABLE_MEMORY_HOTREMOVE
 374         def_bool y
 375
 376 config SCHED_SMT
 377         bool "SMT scheduler support"
 378         depends on SMP
 379         help
 380           Improves the CPU scheduler's decision making when dealing with
 381           Intel IA64 chips with MultiThreading at a cost of slightly increased
 382           overhead in some places. If unsure say N here.
 383
 384 config PERMIT_BSP_REMOVE
 385         bool "Support removal of Bootstrap Processor"
 386         depends on HOTPLUG_CPU
 387         default n
 388         ---help---
 389         Say Y here if your platform SAL will support removal of BSP with HOTPLUG_CPU
 390         support.
 391
 392 config FORCE_CPEI_RETARGET
 393         bool "Force assumption that CPEI can be re-targeted"
 394         depends on PERMIT_BSP_REMOVE
 395         default n
 396         ---help---
 397         Say Y if you need to force the assumption that CPEI can be re-targeted to
 398         any cpu in the system. This hint is available via ACPI 3.0 specifications.
 399         Tiger4 systems are capable of re-directing CPEI to any CPU other than BSP.
 400         This option it useful to enable this feature on older BIOS's as well.
 401         You can also enable this by using boot command line option force_cpei=1.
 402
 403 source "kernel/Kconfig.preempt"
 404
 405 source "mm/Kconfig"
 406
 407 config ARCH_SELECT_MEMORY_MODEL
 408         def_bool y
 409
 410 config ARCH_DISCONTIGMEM_ENABLE
 411         def_bool y
 412         help
 413           Say Y to support efficient handling of discontiguous physical memory,
 414           for architectures which are either NUMA (Non-Uniform Memory Access)
 415           or have huge holes in the physical address space for other reasons.
 416           See <file:Documentation/vm/numa> for more.
 417
 418 config ARCH_FLATMEM_ENABLE
 419         def_bool y
 420
 421 config ARCH_SPARSEMEM_ENABLE
 422         def_bool y
 423         depends on ARCH_DISCONTIGMEM_ENABLE
 424         select SPARSEMEM_VMEMMAP_ENABLE
 425
 426 config ARCH_DISCONTIGMEM_DEFAULT
 427         def_bool y if (IA64_SGI_SN2 || IA64_GENERIC || IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB)
 428         depends on ARCH_DISCONTIGMEM_ENABLE
 429
 430 config NUMA
 431         bool "NUMA support"
 432         depends on !IA64_HP_SIM && !FLATMEM
 433         default y if IA64_SGI_SN2
 434         select ACPI_NUMA if ACPI
 435         help
 436           Say Y to compile the kernel to support NUMA (Non-Uniform Memory
 437           Access).  This option is for configuring high-end multiprocessor
 438           server systems.  If in doubt, say N.
 439
 440 config NODES_SHIFT
 441         int "Max num nodes shift(3-10)"
 442         range 3 10
 443         default "10"
 444         depends on NEED_MULTIPLE_NODES
 445         help
 446           This option specifies the maximum number of nodes in your SSI system.
 447           MAX_NUMNODES will be 2^(This value).
 448           If in doubt, use the default.
 449
 450 # VIRTUAL_MEM_MAP and FLAT_NODE_MEM_MAP are functionally equivalent.
 451 # VIRTUAL_MEM_MAP has been retained for historical reasons.
 452 config VIRTUAL_MEM_MAP
 453         bool "Virtual mem map"
 454         depends on !SPARSEMEM
 455         default y if !IA64_HP_SIM
 456         help
 457           Say Y to compile the kernel with support for a virtual mem map.
 458           This code also only takes effect if a memory hole of greater than
 459           1 Gb is found during boot.  You must turn this option on if you
 460           require the DISCONTIGMEM option for your machine. If you are
 461           unsure, say Y.
 462
 463 config HOLES_IN_ZONE
 464         bool
 465         default y if VIRTUAL_MEM_MAP
 466
 467 config HAVE_ARCH_EARLY_PFN_TO_NID
 468         def_bool NUMA && SPARSEMEM
 469
 470 config HAVE_ARCH_NODEDATA_EXTENSION
 471         def_bool y
 472         depends on NUMA
 473
 474 config USE_PERCPU_NUMA_NODE_ID
 475         def_bool y
 476         depends on NUMA
 477
 478 config HAVE_MEMORYLESS_NODES
 479         def_bool NUMA
 480
 481 config ARCH_PROC_KCORE_TEXT
 482         def_bool y
 483         depends on PROC_KCORE
 484
 485 config IA64_MCA_RECOVERY
 486         tristate "MCA recovery from errors other than TLB."
 487
 488 config PERFMON
 489         bool "Performance monitor support"
 490         help
 491           Selects whether support for the IA-64 performance monitor hardware
 492           is included in the kernel.  This makes some kernel data-structures a
 493           little bigger and slows down execution a bit, but it is generally
 494           a good idea to turn this on.  If you're unsure, say Y.
 495
 496 config IA64_PALINFO
 497         tristate "/proc/pal support"
 498         help
 499           If you say Y here, you are able to get PAL (Processor Abstraction
 500           Layer) information in /proc/pal.  This contains useful information
 501           about the processors in your systems, such as cache and TLB sizes
 502           and the PAL firmware version in use.
 503
 504           To use this option, you have to ensure that the "/proc file system
 505           support" (CONFIG_PROC_FS) is enabled, too.
 506
 507 config IA64_MC_ERR_INJECT
 508         tristate "MC error injection support"
 509         help
 510           Adds support for MC error injection. If enabled, the kernel
 511           will provide a sysfs interface for user applications to
 512           call MC error injection PAL procedures to inject various errors.
 513           This is a useful tool for MCA testing.
 514
 515           If you're unsure, do not select this option.
 516
 517 config SGI_SN
 518         def_bool y if (IA64_SGI_SN2 || IA64_GENERIC)
 519
 520 config IA64_ESI
 521         bool "ESI (Extensible SAL Interface) support"
 522         help
 523           If you say Y here, support is built into the kernel to
 524           make ESI calls.  ESI calls are used to support vendor-specific
 525           firmware extensions, such as the ability to inject memory-errors
 526           for test-purposes.  If you're unsure, say N.
 527
 528 config IA64_HP_AML_NFW
 529         bool "Support ACPI AML calls to native firmware"
 530         help
 531           This driver installs a global ACPI Operation Region handler for
 532           region 0xA1.  AML methods can use this OpRegion to call arbitrary
 533           native firmware functions.  The driver installs the OpRegion
 534           handler if there is an HPQ5001 device or if the user supplies
 535           the "force" module parameter, e.g., with the "aml_nfw.force"
 536           kernel command line option.
 537
 538 source "drivers/sn/Kconfig"
 539
 540 config KEXEC
 541         bool "kexec system call"
 542         depends on !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
 543         help
 544           kexec is a system call that implements the ability to shutdown your
 545           current kernel, and to start another kernel.  It is like a reboot
 546           but it is independent of the system firmware.   And like a reboot
 547           you can start any kernel with it, not just Linux.
 548
 549           The name comes from the similarity to the exec system call.
 550
 551           It is an ongoing process to be certain the hardware in a machine
 552           is properly shutdown, so do not be surprised if this code does not
 553           initially work for you.  As of this writing the exact hardware
 554           interface is strongly in flux, so no good recommendation can be
 555           made.
 556
 557 config CRASH_DUMP
 558           bool "kernel crash dumps"
 559           depends on IA64_MCA_RECOVERY && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
 560           help
 561             Generate crash dump after being started by kexec.
 562
 563 source "drivers/firmware/Kconfig"
 564
 565 source "fs/Kconfig.binfmt"
 566
 567 endmenu
 568
 569 menu "Power management and ACPI options"
 570
 571 source "kernel/power/Kconfig"
 572
 573 source "drivers/acpi/Kconfig"
 574
 575 if PM
 576 menu "CPU Frequency scaling"
 577 source "drivers/cpufreq/Kconfig"
 578 endmenu
 579 endif
 580
 581 endmenu
 582
 583 if !IA64_HP_SIM
 584
 585 menu "Bus options (PCI, PCMCIA)"
 586
 587 config PCI
 588         bool "PCI support"
 589         help
 590           Real IA-64 machines all have PCI/PCI-X/PCI Express busses.  Say Y
 591           here unless you are using a simulator without PCI support.
 592
 593 config PCI_DOMAINS
 594         def_bool PCI
 595
 596 config PCI_SYSCALL
 597         def_bool PCI
 598
 599 source "drivers/pci/pcie/Kconfig"
 600
 601 source "drivers/pci/Kconfig"
 602
 603 source "drivers/pci/hotplug/Kconfig"
 604
 605 source "drivers/pcmcia/Kconfig"
 606
 607 endmenu
 608
 609 endif
 610
 611 source "net/Kconfig"
 612
 613 source "drivers/Kconfig"
 614
 615 source "arch/ia64/hp/sim/Kconfig"
 616
 617 config MSPEC
 618         tristate "Memory special operations driver"
 619         depends on IA64
 620         select IA64_UNCACHED_ALLOCATOR
 621         help
 622           If you have an ia64 and you want to enable memory special
 623           operations support (formerly known as fetchop), say Y here,
 624           otherwise say N.
 625
 626 source "fs/Kconfig"
 627
 628 source "arch/ia64/Kconfig.debug"
 629
 630 source "security/Kconfig"
 631
 632 source "crypto/Kconfig"
 633
 634 source "lib/Kconfig"
 635
 636 config IOMMU_HELPER
 637         def_bool (IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB || IA64_GENERIC || SWIOTLB)