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