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