1source "init/Kconfig" 2 3source "kernel/Kconfig.freezer" 4 5menu "Processor type and features" 6 7config IA64 8 bool 9 select PCI if (!IA64_HP_SIM) 10 select ACPI if (!IA64_HP_SIM) 11 select PM if (!IA64_HP_SIM) 12 select ARCH_SUPPORTS_MSI 13 select HAVE_UNSTABLE_SCHED_CLOCK 14 select HAVE_IDE 15 select HAVE_OPROFILE 16 select HAVE_KPROBES 17 select HAVE_KRETPROBES 18 select HAVE_FTRACE_MCOUNT_RECORD 19 select HAVE_DYNAMIC_FTRACE if (!ITANIUM) 20 select HAVE_FUNCTION_TRACER 21 select HAVE_DMA_ATTRS 22 select HAVE_KVM 23 select HAVE_ARCH_TRACEHOOK 24 select HAVE_DMA_API_DEBUG 25 select HAVE_GENERIC_HARDIRQS 26 select HAVE_MEMBLOCK 27 select HAVE_MEMBLOCK_NODE_MAP 28 select HAVE_VIRT_CPU_ACCOUNTING 29 select VIRT_TO_BUS 30 select ARCH_DISCARD_MEMBLOCK 31 select GENERIC_IRQ_PROBE 32 select GENERIC_PENDING_IRQ if SMP 33 select GENERIC_IRQ_SHOW 34 select ARCH_WANT_OPTIONAL_GPIOLIB 35 select ARCH_HAVE_NMI_SAFE_CMPXCHG 36 select GENERIC_IOMAP 37 select GENERIC_SMP_IDLE_THREAD 38 select ARCH_INIT_TASK 39 select ARCH_TASK_STRUCT_ALLOCATOR 40 select ARCH_THREAD_INFO_ALLOCATOR 41 select ARCH_CLOCKSOURCE_DATA 42 select GENERIC_TIME_VSYSCALL_OLD 43 select SYSCTL_ARCH_UNALIGN_NO_WARN 44 select HAVE_MOD_ARCH_SPECIFIC 45 select MODULES_USE_ELF_RELA 46 default y 47 help 48 The Itanium Processor Family is Intel's 64-bit successor to 49 the 32-bit X86 line. The IA-64 Linux project has a home 50 page at <http://www.linuxia64.org/> and a mailing list at 51 <linux-ia64@vger.kernel.org>. 52 53config 64BIT 54 bool 55 select ATA_NONSTANDARD if ATA 56 default y 57 58config ZONE_DMA 59 def_bool y 60 depends on !IA64_SGI_SN2 61 62config QUICKLIST 63 bool 64 default y 65 66config MMU 67 bool 68 default y 69 70config ARCH_DMA_ADDR_T_64BIT 71 def_bool y 72 73config NEED_DMA_MAP_STATE 74 def_bool y 75 76config NEED_SG_DMA_LENGTH 77 def_bool y 78 79config SWIOTLB 80 bool 81 82config STACKTRACE_SUPPORT 83 def_bool y 84 85config GENERIC_LOCKBREAK 86 def_bool n 87 88config RWSEM_XCHGADD_ALGORITHM 89 bool 90 default y 91 92config HUGETLB_PAGE_SIZE_VARIABLE 93 bool 94 depends on HUGETLB_PAGE 95 default y 96 97config GENERIC_CALIBRATE_DELAY 98 bool 99 default y 100 101config HAVE_SETUP_PER_CPU_AREA 102 def_bool y 103 104config DMI 105 bool 106 default y 107 108config EFI 109 bool 110 select UCS2_STRING 111 default y 112 113config SCHED_OMIT_FRAME_POINTER 114 bool 115 default y 116 117config IA64_UNCACHED_ALLOCATOR 118 bool 119 select GENERIC_ALLOCATOR 120 121config ARCH_USES_PG_UNCACHED 122 def_bool y 123 depends on IA64_UNCACHED_ALLOCATOR 124 125config AUDIT_ARCH 126 bool 127 default y 128 129menuconfig PARAVIRT_GUEST 130 bool "Paravirtualized guest support" 131 depends on BROKEN 132 help 133 Say Y here to get to see options related to running Linux under 134 various hypervisors. This option alone does not add any kernel code. 135 136 If you say N, all options in this submenu will be skipped and disabled. 137 138if PARAVIRT_GUEST 139 140config PARAVIRT 141 bool "Enable paravirtualization code" 142 depends on PARAVIRT_GUEST 143 default y 144 help 145 This changes the kernel so it can modify itself when it is run 146 under a hypervisor, potentially improving performance significantly 147 over full virtualization. However, when run without a hypervisor 148 the kernel is theoretically slower and slightly larger. 149 150 151source "arch/ia64/xen/Kconfig" 152 153endif 154 155choice 156 prompt "System type" 157 default IA64_GENERIC 158 159config IA64_GENERIC 160 bool "generic" 161 select NUMA 162 select ACPI_NUMA 163 select SWIOTLB 164 select PCI_MSI 165 help 166 This selects the system type of your hardware. A "generic" kernel 167 will run on any supported IA-64 system. However, if you configure 168 a kernel for your specific system, it will be faster and smaller. 169 170 generic For any supported IA-64 system 171 DIG-compliant For DIG ("Developer's Interface Guide") compliant systems 172 DIG+Intel+IOMMU For DIG systems with Intel IOMMU 173 HP-zx1/sx1000 For HP systems 174 HP-zx1/sx1000+swiotlb For HP systems with (broken) DMA-constrained devices. 175 SGI-SN2 For SGI Altix systems 176 SGI-UV For SGI UV systems 177 Ski-simulator For the HP simulator <http://www.hpl.hp.com/research/linux/ski/> 178 Xen-domU For xen domU system 179 180 If you don't know what to do, choose "generic". 181 182config IA64_DIG 183 bool "DIG-compliant" 184 select SWIOTLB 185 186config IA64_DIG_VTD 187 bool "DIG+Intel+IOMMU" 188 select INTEL_IOMMU 189 select PCI_MSI 190 191config 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 197config 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 207config 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 218config 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 230config IA64_HP_SIM 231 bool "Ski-simulator" 232 select SWIOTLB 233 234config IA64_XEN_GUEST 235 bool "Xen guest" 236 select SWIOTLB 237 depends on XEN 238 help 239 Build a kernel that runs on Xen guest domain. At this moment only 240 16KB page size in supported. 241 242endchoice 243 244choice 245 prompt "Processor type" 246 default ITANIUM 247 248config 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 255config MCKINLEY 256 bool "Itanium 2" 257 help 258 Select this to configure for an Itanium 2 (McKinley) processor. 259 260endchoice 261 262choice 263 prompt "Kernel page size" 264 default IA64_PAGE_SIZE_16KB 265 266config 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 283config IA64_PAGE_SIZE_8KB 284 bool "8KB" 285 286config IA64_PAGE_SIZE_16KB 287 bool "16KB" 288 289config IA64_PAGE_SIZE_64KB 290 depends on !ITANIUM 291 bool "64KB" 292 293endchoice 294 295choice 296 prompt "Page Table Levels" 297 default PGTABLE_3 298 299config PGTABLE_3 300 bool "3 Levels" 301 302config PGTABLE_4 303 depends on !IA64_PAGE_SIZE_64KB 304 bool "4 Levels" 305 306endchoice 307 308if IA64_HP_SIM 309config HZ 310 default 32 311endif 312 313if !IA64_HP_SIM 314source kernel/Kconfig.hz 315endif 316 317config IA64_BRL_EMU 318 bool 319 depends on ITANIUM 320 default y 321 322# align cache-sensitive data to 128 bytes 323config IA64_L1_CACHE_SHIFT 324 int 325 default "7" if MCKINLEY 326 default "6" if ITANIUM 327 328config IA64_CYCLONE 329 bool "Cyclone (EXA) Time Source support" 330 help 331 Say Y here to enable support for IBM EXA Cyclone time source. 332 If you're unsure, answer N. 333 334config IOSAPIC 335 bool 336 depends on !IA64_HP_SIM 337 default y 338 339config FORCE_MAX_ZONEORDER 340 int "MAX_ORDER (11 - 17)" if !HUGETLB_PAGE 341 range 11 17 if !HUGETLB_PAGE 342 default "17" if HUGETLB_PAGE 343 default "11" 344 345config SMP 346 bool "Symmetric multi-processing support" 347 select USE_GENERIC_SMP_HELPERS 348 help 349 This enables support for systems with more than one CPU. If you have 350 a system with only one CPU, say N. If you have a system with more 351 than one CPU, say Y. 352 353 If you say N here, the kernel will run on single and multiprocessor 354 systems, but will use only one CPU of a multiprocessor system. If 355 you say Y here, the kernel will run on many, but not all, 356 single processor systems. On a single processor system, the kernel 357 will run faster if you say N here. 358 359 See also the SMP-HOWTO available at 360 <http://www.tldp.org/docs.html#howto>. 361 362 If you don't know what to do here, say N. 363 364config NR_CPUS 365 int "Maximum number of CPUs (2-4096)" 366 range 2 4096 367 depends on SMP 368 default "4096" 369 help 370 You should set this to the number of CPUs in your system, but 371 keep in mind that a kernel compiled for, e.g., 2 CPUs will boot but 372 only use 2 CPUs on a >2 CPU system. Setting this to a value larger 373 than 64 will cause the use of a CPU mask array, causing a small 374 performance hit. 375 376config HOTPLUG_CPU 377 bool "Support for hot-pluggable CPUs" 378 depends on SMP 379 default n 380 ---help--- 381 Say Y here to experiment with turning CPUs off and on. CPUs 382 can be controlled through /sys/devices/system/cpu/cpu#. 383 Say N if you want to disable CPU hotplug. 384 385config ARCH_ENABLE_MEMORY_HOTPLUG 386 def_bool y 387 388config ARCH_ENABLE_MEMORY_HOTREMOVE 389 def_bool y 390 391config SCHED_SMT 392 bool "SMT scheduler support" 393 depends on SMP 394 help 395 Improves the CPU scheduler's decision making when dealing with 396 Intel IA64 chips with MultiThreading at a cost of slightly increased 397 overhead in some places. If unsure say N here. 398 399config PERMIT_BSP_REMOVE 400 bool "Support removal of Bootstrap Processor" 401 depends on HOTPLUG_CPU 402 default n 403 ---help--- 404 Say Y here if your platform SAL will support removal of BSP with HOTPLUG_CPU 405 support. 406 407config FORCE_CPEI_RETARGET 408 bool "Force assumption that CPEI can be re-targeted" 409 depends on PERMIT_BSP_REMOVE 410 default n 411 ---help--- 412 Say Y if you need to force the assumption that CPEI can be re-targeted to 413 any cpu in the system. This hint is available via ACPI 3.0 specifications. 414 Tiger4 systems are capable of re-directing CPEI to any CPU other than BSP. 415 This option it useful to enable this feature on older BIOS's as well. 416 You can also enable this by using boot command line option force_cpei=1. 417 418source "kernel/Kconfig.preempt" 419 420source "mm/Kconfig" 421 422config ARCH_SELECT_MEMORY_MODEL 423 def_bool y 424 425config ARCH_DISCONTIGMEM_ENABLE 426 def_bool y 427 help 428 Say Y to support efficient handling of discontiguous physical memory, 429 for architectures which are either NUMA (Non-Uniform Memory Access) 430 or have huge holes in the physical address space for other reasons. 431 See <file:Documentation/vm/numa> for more. 432 433config ARCH_FLATMEM_ENABLE 434 def_bool y 435 436config ARCH_SPARSEMEM_ENABLE 437 def_bool y 438 depends on ARCH_DISCONTIGMEM_ENABLE 439 select SPARSEMEM_VMEMMAP_ENABLE 440 441config ARCH_DISCONTIGMEM_DEFAULT 442 def_bool y if (IA64_SGI_SN2 || IA64_GENERIC || IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB) 443 depends on ARCH_DISCONTIGMEM_ENABLE 444 445config NUMA 446 bool "NUMA support" 447 depends on !IA64_HP_SIM && !FLATMEM 448 default y if IA64_SGI_SN2 449 select ACPI_NUMA if ACPI 450 help 451 Say Y to compile the kernel to support NUMA (Non-Uniform Memory 452 Access). This option is for configuring high-end multiprocessor 453 server systems. If in doubt, say N. 454 455config NODES_SHIFT 456 int "Max num nodes shift(3-10)" 457 range 3 10 458 default "10" 459 depends on NEED_MULTIPLE_NODES 460 help 461 This option specifies the maximum number of nodes in your SSI system. 462 MAX_NUMNODES will be 2^(This value). 463 If in doubt, use the default. 464 465# VIRTUAL_MEM_MAP and FLAT_NODE_MEM_MAP are functionally equivalent. 466# VIRTUAL_MEM_MAP has been retained for historical reasons. 467config VIRTUAL_MEM_MAP 468 bool "Virtual mem map" 469 depends on !SPARSEMEM 470 default y if !IA64_HP_SIM 471 help 472 Say Y to compile the kernel with support for a virtual mem map. 473 This code also only takes effect if a memory hole of greater than 474 1 Gb is found during boot. You must turn this option on if you 475 require the DISCONTIGMEM option for your machine. If you are 476 unsure, say Y. 477 478config HOLES_IN_ZONE 479 bool 480 default y if VIRTUAL_MEM_MAP 481 482config HAVE_ARCH_EARLY_PFN_TO_NID 483 def_bool NUMA && SPARSEMEM 484 485config HAVE_ARCH_NODEDATA_EXTENSION 486 def_bool y 487 depends on NUMA 488 489config USE_PERCPU_NUMA_NODE_ID 490 def_bool y 491 depends on NUMA 492 493config HAVE_MEMORYLESS_NODES 494 def_bool NUMA 495 496config ARCH_PROC_KCORE_TEXT 497 def_bool y 498 depends on PROC_KCORE 499 500config IA64_MCA_RECOVERY 501 tristate "MCA recovery from errors other than TLB." 502 503config PERFMON 504 bool "Performance monitor support" 505 help 506 Selects whether support for the IA-64 performance monitor hardware 507 is included in the kernel. This makes some kernel data-structures a 508 little bigger and slows down execution a bit, but it is generally 509 a good idea to turn this on. If you're unsure, say Y. 510 511config IA64_PALINFO 512 tristate "/proc/pal support" 513 help 514 If you say Y here, you are able to get PAL (Processor Abstraction 515 Layer) information in /proc/pal. This contains useful information 516 about the processors in your systems, such as cache and TLB sizes 517 and the PAL firmware version in use. 518 519 To use this option, you have to ensure that the "/proc file system 520 support" (CONFIG_PROC_FS) is enabled, too. 521 522config IA64_MC_ERR_INJECT 523 tristate "MC error injection support" 524 help 525 Adds support for MC error injection. If enabled, the kernel 526 will provide a sysfs interface for user applications to 527 call MC error injection PAL procedures to inject various errors. 528 This is a useful tool for MCA testing. 529 530 If you're unsure, do not select this option. 531 532config SGI_SN 533 def_bool y if (IA64_SGI_SN2 || IA64_GENERIC) 534 535config IA64_ESI 536 bool "ESI (Extensible SAL Interface) support" 537 help 538 If you say Y here, support is built into the kernel to 539 make ESI calls. ESI calls are used to support vendor-specific 540 firmware extensions, such as the ability to inject memory-errors 541 for test-purposes. If you're unsure, say N. 542 543config IA64_HP_AML_NFW 544 bool "Support ACPI AML calls to native firmware" 545 help 546 This driver installs a global ACPI Operation Region handler for 547 region 0xA1. AML methods can use this OpRegion to call arbitrary 548 native firmware functions. The driver installs the OpRegion 549 handler if there is an HPQ5001 device or if the user supplies 550 the "force" module parameter, e.g., with the "aml_nfw.force" 551 kernel command line option. 552 553source "drivers/sn/Kconfig" 554 555config KEXEC 556 bool "kexec system call" 557 depends on !IA64_HP_SIM && (!SMP || HOTPLUG_CPU) 558 help 559 kexec is a system call that implements the ability to shutdown your 560 current kernel, and to start another kernel. It is like a reboot 561 but it is independent of the system firmware. And like a reboot 562 you can start any kernel with it, not just Linux. 563 564 The name comes from the similarity to the exec system call. 565 566 It is an ongoing process to be certain the hardware in a machine 567 is properly shutdown, so do not be surprised if this code does not 568 initially work for you. It may help to enable device hotplugging 569 support. As of this writing the exact hardware interface is 570 strongly in flux, so no good recommendation can be made. 571 572config CRASH_DUMP 573 bool "kernel crash dumps" 574 depends on IA64_MCA_RECOVERY && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU) 575 help 576 Generate crash dump after being started by kexec. 577 578source "drivers/firmware/Kconfig" 579 580source "fs/Kconfig.binfmt" 581 582endmenu 583 584menu "Power management and ACPI options" 585 586source "kernel/power/Kconfig" 587 588source "drivers/acpi/Kconfig" 589 590if PM 591menu "CPU Frequency scaling" 592source "drivers/cpufreq/Kconfig" 593endmenu 594endif 595 596endmenu 597 598if !IA64_HP_SIM 599 600menu "Bus options (PCI, PCMCIA)" 601 602config PCI 603 bool "PCI support" 604 help 605 Real IA-64 machines all have PCI/PCI-X/PCI Express busses. Say Y 606 here unless you are using a simulator without PCI support. 607 608config PCI_DOMAINS 609 def_bool PCI 610 611config PCI_SYSCALL 612 def_bool PCI 613 614source "drivers/pci/pcie/Kconfig" 615 616source "drivers/pci/Kconfig" 617 618source "drivers/pci/hotplug/Kconfig" 619 620source "drivers/pcmcia/Kconfig" 621 622endmenu 623 624endif 625 626source "net/Kconfig" 627 628source "drivers/Kconfig" 629 630source "arch/ia64/hp/sim/Kconfig" 631 632config MSPEC 633 tristate "Memory special operations driver" 634 depends on IA64 635 select IA64_UNCACHED_ALLOCATOR 636 help 637 If you have an ia64 and you want to enable memory special 638 operations support (formerly known as fetchop), say Y here, 639 otherwise say N. 640 641source "fs/Kconfig" 642 643source "arch/ia64/Kconfig.debug" 644 645source "security/Kconfig" 646 647source "crypto/Kconfig" 648 649source "arch/ia64/kvm/Kconfig" 650 651source "lib/Kconfig" 652 653config IOMMU_HELPER 654 def_bool (IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB || IA64_GENERIC || SWIOTLB) 655