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