1source "init/Kconfig" 2 3source "kernel/Kconfig.freezer" 4 5menu "Processor type and features" 6 7config IA64 8 bool 9 select ARCH_MIGHT_HAVE_PC_PARPORT 10 select ARCH_MIGHT_HAVE_PC_SERIO 11 select PCI if (!IA64_HP_SIM) 12 select ACPI if (!IA64_HP_SIM) 13 select ARCH_MIGHT_HAVE_ACPI_PDC if ACPI 14 select HAVE_UNSTABLE_SCHED_CLOCK 15 select HAVE_IDE 16 select HAVE_OPROFILE 17 select HAVE_KPROBES 18 select HAVE_KRETPROBES 19 select HAVE_FTRACE_MCOUNT_RECORD 20 select HAVE_DYNAMIC_FTRACE if (!ITANIUM) 21 select HAVE_FUNCTION_TRACER 22 select HAVE_DMA_ATTRS 23 select TTY 24 select HAVE_ARCH_TRACEHOOK 25 select HAVE_DMA_API_DEBUG 26 select HAVE_MEMBLOCK 27 select HAVE_MEMBLOCK_NODE_MAP 28 select HAVE_VIRT_CPU_ACCOUNTING 29 select ARCH_HAS_SG_CHAIN 30 select VIRT_TO_BUS 31 select ARCH_DISCARD_MEMBLOCK 32 select GENERIC_IRQ_PROBE 33 select GENERIC_PENDING_IRQ if SMP 34 select GENERIC_IRQ_SHOW 35 select GENERIC_IRQ_LEGACY 36 select ARCH_WANT_OPTIONAL_GPIOLIB 37 select ARCH_HAVE_NMI_SAFE_CMPXCHG 38 select GENERIC_IOMAP 39 select GENERIC_SMP_IDLE_THREAD 40 select ARCH_INIT_TASK 41 select ARCH_TASK_STRUCT_ALLOCATOR 42 select ARCH_THREAD_INFO_ALLOCATOR 43 select ARCH_CLOCKSOURCE_DATA 44 select GENERIC_TIME_VSYSCALL_OLD 45 select SYSCTL_ARCH_UNALIGN_NO_WARN 46 select HAVE_MOD_ARCH_SPECIFIC 47 select MODULES_USE_ELF_RELA 48 select ARCH_USE_CMPXCHG_LOCKREF 49 select HAVE_ARCH_AUDITSYSCALL 50 default y 51 help 52 The Itanium Processor Family is Intel's 64-bit successor to 53 the 32-bit X86 line. The IA-64 Linux project has a home 54 page at <http://www.linuxia64.org/> and a mailing list at 55 <linux-ia64@vger.kernel.org>. 56 57config 64BIT 58 bool 59 select ATA_NONSTANDARD if ATA 60 default y 61 62config ZONE_DMA 63 def_bool y 64 depends on !IA64_SGI_SN2 65 66config QUICKLIST 67 bool 68 default y 69 70config MMU 71 bool 72 default y 73 74config ARCH_DMA_ADDR_T_64BIT 75 def_bool y 76 77config NEED_DMA_MAP_STATE 78 def_bool y 79 80config NEED_SG_DMA_LENGTH 81 def_bool y 82 83config SWIOTLB 84 bool 85 86config STACKTRACE_SUPPORT 87 def_bool y 88 89config GENERIC_LOCKBREAK 90 def_bool n 91 92config RWSEM_XCHGADD_ALGORITHM 93 bool 94 default y 95 96config HUGETLB_PAGE_SIZE_VARIABLE 97 bool 98 depends on HUGETLB_PAGE 99 default y 100 101config GENERIC_CALIBRATE_DELAY 102 bool 103 default y 104 105config HAVE_SETUP_PER_CPU_AREA 106 def_bool y 107 108config DMI 109 bool 110 default y 111 select DMI_SCAN_MACHINE_NON_EFI_FALLBACK 112 113config EFI 114 bool 115 select UCS2_STRING 116 default y 117 118config SCHED_OMIT_FRAME_POINTER 119 bool 120 default y 121 122config IA64_UNCACHED_ALLOCATOR 123 bool 124 select GENERIC_ALLOCATOR 125 126config ARCH_USES_PG_UNCACHED 127 def_bool y 128 depends on IA64_UNCACHED_ALLOCATOR 129 130config AUDIT_ARCH 131 bool 132 default y 133 134menuconfig PARAVIRT_GUEST 135 bool "Paravirtualized guest support" 136 depends on BROKEN 137 help 138 Say Y here to get to see options related to running Linux under 139 various hypervisors. This option alone does not add any kernel code. 140 141 If you say N, all options in this submenu will be skipped and disabled. 142 143if PARAVIRT_GUEST 144 145config PARAVIRT 146 bool "Enable paravirtualization code" 147 depends on PARAVIRT_GUEST 148 default y 149 help 150 This changes the kernel so it can modify itself when it is run 151 under a hypervisor, potentially improving performance significantly 152 over full virtualization. However, when run without a hypervisor 153 the kernel is theoretically slower and slightly larger. 154 155endif 156 157choice 158 prompt "System type" 159 default IA64_GENERIC 160 161config IA64_GENERIC 162 bool "generic" 163 select NUMA 164 select ACPI_NUMA 165 select SWIOTLB 166 select PCI_MSI 167 help 168 This selects the system type of your hardware. A "generic" kernel 169 will run on any supported IA-64 system. However, if you configure 170 a kernel for your specific system, it will be faster and smaller. 171 172 generic For any supported IA-64 system 173 DIG-compliant For DIG ("Developer's Interface Guide") compliant systems 174 DIG+Intel+IOMMU For DIG systems with Intel IOMMU 175 HP-zx1/sx1000 For HP systems 176 HP-zx1/sx1000+swiotlb For HP systems with (broken) DMA-constrained devices. 177 SGI-SN2 For SGI Altix systems 178 SGI-UV For SGI UV systems 179 Ski-simulator For the HP simulator <http://www.hpl.hp.com/research/linux/ski/> 180 181 If you don't know what to do, choose "generic". 182 183config IA64_DIG 184 bool "DIG-compliant" 185 select SWIOTLB 186 187config IA64_DIG_VTD 188 bool "DIG+Intel+IOMMU" 189 select INTEL_IOMMU 190 select PCI_MSI 191 192config IA64_HP_ZX1 193 bool "HP-zx1/sx1000" 194 help 195 Build a kernel that runs on HP zx1 and sx1000 systems. This adds 196 support for the HP I/O MMU. 197 198config IA64_HP_ZX1_SWIOTLB 199 bool "HP-zx1/sx1000 with software I/O TLB" 200 select SWIOTLB 201 help 202 Build a kernel that runs on HP zx1 and sx1000 systems even when they 203 have broken PCI devices which cannot DMA to full 32 bits. Apart 204 from support for the HP I/O MMU, this includes support for the software 205 I/O TLB, which allows supporting the broken devices at the expense of 206 wasting some kernel memory (about 2MB by default). 207 208config IA64_SGI_SN2 209 bool "SGI-SN2" 210 select NUMA 211 select ACPI_NUMA 212 help 213 Selecting this option will optimize the kernel for use on sn2 based 214 systems, but the resulting kernel binary will not run on other 215 types of ia64 systems. If you have an SGI Altix system, it's safe 216 to select this option. If in doubt, select ia64 generic support 217 instead. 218 219config IA64_SGI_UV 220 bool "SGI-UV" 221 select NUMA 222 select ACPI_NUMA 223 select SWIOTLB 224 help 225 Selecting this option will optimize the kernel for use on UV based 226 systems, but the resulting kernel binary will not run on other 227 types of ia64 systems. If you have an SGI UV system, it's safe 228 to select this option. If in doubt, select ia64 generic support 229 instead. 230 231config IA64_HP_SIM 232 bool "Ski-simulator" 233 select SWIOTLB 234 depends on !PM 235 236endchoice 237 238choice 239 prompt "Processor type" 240 default ITANIUM 241 242config ITANIUM 243 bool "Itanium" 244 help 245 Select your IA-64 processor type. The default is Itanium. 246 This choice is safe for all IA-64 systems, but may not perform 247 optimally on systems with, say, Itanium 2 or newer processors. 248 249config MCKINLEY 250 bool "Itanium 2" 251 help 252 Select this to configure for an Itanium 2 (McKinley) processor. 253 254endchoice 255 256choice 257 prompt "Kernel page size" 258 default IA64_PAGE_SIZE_16KB 259 260config IA64_PAGE_SIZE_4KB 261 bool "4KB" 262 help 263 This lets you select the page size of the kernel. For best IA-64 264 performance, a page size of 8KB or 16KB is recommended. For best 265 IA-32 compatibility, a page size of 4KB should be selected (the vast 266 majority of IA-32 binaries work perfectly fine with a larger page 267 size). For Itanium 2 or newer systems, a page size of 64KB can also 268 be selected. 269 270 4KB For best IA-32 compatibility 271 8KB For best IA-64 performance 272 16KB For best IA-64 performance 273 64KB Requires Itanium 2 or newer processor. 274 275 If you don't know what to do, choose 16KB. 276 277config IA64_PAGE_SIZE_8KB 278 bool "8KB" 279 280config IA64_PAGE_SIZE_16KB 281 bool "16KB" 282 283config IA64_PAGE_SIZE_64KB 284 depends on !ITANIUM 285 bool "64KB" 286 287endchoice 288 289choice 290 prompt "Page Table Levels" 291 default PGTABLE_3 292 293config PGTABLE_3 294 bool "3 Levels" 295 296config PGTABLE_4 297 depends on !IA64_PAGE_SIZE_64KB 298 bool "4 Levels" 299 300endchoice 301 302if IA64_HP_SIM 303config HZ 304 default 32 305endif 306 307if !IA64_HP_SIM 308source kernel/Kconfig.hz 309endif 310 311config IA64_BRL_EMU 312 bool 313 depends on ITANIUM 314 default y 315 316# align cache-sensitive data to 128 bytes 317config IA64_L1_CACHE_SHIFT 318 int 319 default "7" if MCKINLEY 320 default "6" if ITANIUM 321 322config IA64_CYCLONE 323 bool "Cyclone (EXA) Time Source support" 324 help 325 Say Y here to enable support for IBM EXA Cyclone time source. 326 If you're unsure, answer N. 327 328config IOSAPIC 329 bool 330 depends on !IA64_HP_SIM 331 default y 332 333config FORCE_MAX_ZONEORDER 334 int "MAX_ORDER (11 - 17)" if !HUGETLB_PAGE 335 range 11 17 if !HUGETLB_PAGE 336 default "17" if HUGETLB_PAGE 337 default "11" 338 339config SMP 340 bool "Symmetric multi-processing support" 341 help 342 This enables support for systems with more than one CPU. If you have 343 a system with only one CPU, say N. If you have a system with more 344 than one CPU, say Y. 345 346 If you say N here, the kernel will run on single and multiprocessor 347 systems, but will use only one CPU of a multiprocessor system. If 348 you say Y here, the kernel will run on many, but not all, 349 single processor systems. On a single processor system, the kernel 350 will run faster if you say N here. 351 352 See also the SMP-HOWTO available at 353 <http://www.tldp.org/docs.html#howto>. 354 355 If you don't know what to do here, say N. 356 357config NR_CPUS 358 int "Maximum number of CPUs (2-4096)" 359 range 2 4096 360 depends on SMP 361 default "4096" 362 help 363 You should set this to the number of CPUs in your system, but 364 keep in mind that a kernel compiled for, e.g., 2 CPUs will boot but 365 only use 2 CPUs on a >2 CPU system. Setting this to a value larger 366 than 64 will cause the use of a CPU mask array, causing a small 367 performance hit. 368 369config HOTPLUG_CPU 370 bool "Support for hot-pluggable CPUs" 371 depends on SMP 372 default n 373 ---help--- 374 Say Y here to experiment with turning CPUs off and on. CPUs 375 can be controlled through /sys/devices/system/cpu/cpu#. 376 Say N if you want to disable CPU hotplug. 377 378config ARCH_ENABLE_MEMORY_HOTPLUG 379 def_bool y 380 381config ARCH_ENABLE_MEMORY_HOTREMOVE 382 def_bool y 383 384config SCHED_SMT 385 bool "SMT scheduler support" 386 depends on SMP 387 help 388 Improves the CPU scheduler's decision making when dealing with 389 Intel IA64 chips with MultiThreading at a cost of slightly increased 390 overhead in some places. If unsure say N here. 391 392config PERMIT_BSP_REMOVE 393 bool "Support removal of Bootstrap Processor" 394 depends on HOTPLUG_CPU 395 default n 396 ---help--- 397 Say Y here if your platform SAL will support removal of BSP with HOTPLUG_CPU 398 support. 399 400config FORCE_CPEI_RETARGET 401 bool "Force assumption that CPEI can be re-targeted" 402 depends on PERMIT_BSP_REMOVE 403 default n 404 ---help--- 405 Say Y if you need to force the assumption that CPEI can be re-targeted to 406 any cpu in the system. This hint is available via ACPI 3.0 specifications. 407 Tiger4 systems are capable of re-directing CPEI to any CPU other than BSP. 408 This option it useful to enable this feature on older BIOS's as well. 409 You can also enable this by using boot command line option force_cpei=1. 410 411source "kernel/Kconfig.preempt" 412 413source "mm/Kconfig" 414 415config ARCH_SELECT_MEMORY_MODEL 416 def_bool y 417 418config ARCH_DISCONTIGMEM_ENABLE 419 def_bool y 420 help 421 Say Y to support efficient handling of discontiguous physical memory, 422 for architectures which are either NUMA (Non-Uniform Memory Access) 423 or have huge holes in the physical address space for other reasons. 424 See <file:Documentation/vm/numa> for more. 425 426config ARCH_FLATMEM_ENABLE 427 def_bool y 428 429config ARCH_SPARSEMEM_ENABLE 430 def_bool y 431 depends on ARCH_DISCONTIGMEM_ENABLE 432 select SPARSEMEM_VMEMMAP_ENABLE 433 434config ARCH_DISCONTIGMEM_DEFAULT 435 def_bool y if (IA64_SGI_SN2 || IA64_GENERIC || IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB) 436 depends on ARCH_DISCONTIGMEM_ENABLE 437 438config NUMA 439 bool "NUMA support" 440 depends on !IA64_HP_SIM && !FLATMEM 441 default y if IA64_SGI_SN2 442 select ACPI_NUMA if ACPI 443 help 444 Say Y to compile the kernel to support NUMA (Non-Uniform Memory 445 Access). This option is for configuring high-end multiprocessor 446 server systems. If in doubt, say N. 447 448config NODES_SHIFT 449 int "Max num nodes shift(3-10)" 450 range 3 10 451 default "10" 452 depends on NEED_MULTIPLE_NODES 453 help 454 This option specifies the maximum number of nodes in your SSI system. 455 MAX_NUMNODES will be 2^(This value). 456 If in doubt, use the default. 457 458# VIRTUAL_MEM_MAP and FLAT_NODE_MEM_MAP are functionally equivalent. 459# VIRTUAL_MEM_MAP has been retained for historical reasons. 460config VIRTUAL_MEM_MAP 461 bool "Virtual mem map" 462 depends on !SPARSEMEM 463 default y if !IA64_HP_SIM 464 help 465 Say Y to compile the kernel with support for a virtual mem map. 466 This code also only takes effect if a memory hole of greater than 467 1 Gb is found during boot. You must turn this option on if you 468 require the DISCONTIGMEM option for your machine. If you are 469 unsure, say Y. 470 471config HOLES_IN_ZONE 472 bool 473 default y if VIRTUAL_MEM_MAP 474 475config HAVE_ARCH_EARLY_PFN_TO_NID 476 def_bool NUMA && SPARSEMEM 477 478config HAVE_ARCH_NODEDATA_EXTENSION 479 def_bool y 480 depends on NUMA 481 482config USE_PERCPU_NUMA_NODE_ID 483 def_bool y 484 depends on NUMA 485 486config HAVE_MEMORYLESS_NODES 487 def_bool NUMA 488 489config ARCH_PROC_KCORE_TEXT 490 def_bool y 491 depends on PROC_KCORE 492 493config IA64_MCA_RECOVERY 494 tristate "MCA recovery from errors other than TLB." 495 496config PERFMON 497 bool "Performance monitor support" 498 help 499 Selects whether support for the IA-64 performance monitor hardware 500 is included in the kernel. This makes some kernel data-structures a 501 little bigger and slows down execution a bit, but it is generally 502 a good idea to turn this on. If you're unsure, say Y. 503 504config IA64_PALINFO 505 tristate "/proc/pal support" 506 help 507 If you say Y here, you are able to get PAL (Processor Abstraction 508 Layer) information in /proc/pal. This contains useful information 509 about the processors in your systems, such as cache and TLB sizes 510 and the PAL firmware version in use. 511 512 To use this option, you have to ensure that the "/proc file system 513 support" (CONFIG_PROC_FS) is enabled, too. 514 515config IA64_MC_ERR_INJECT 516 tristate "MC error injection support" 517 help 518 Adds support for MC error injection. If enabled, the kernel 519 will provide a sysfs interface for user applications to 520 call MC error injection PAL procedures to inject various errors. 521 This is a useful tool for MCA testing. 522 523 If you're unsure, do not select this option. 524 525config SGI_SN 526 def_bool y if (IA64_SGI_SN2 || IA64_GENERIC) 527 528config IA64_ESI 529 bool "ESI (Extensible SAL Interface) support" 530 help 531 If you say Y here, support is built into the kernel to 532 make ESI calls. ESI calls are used to support vendor-specific 533 firmware extensions, such as the ability to inject memory-errors 534 for test-purposes. If you're unsure, say N. 535 536config IA64_HP_AML_NFW 537 bool "Support ACPI AML calls to native firmware" 538 help 539 This driver installs a global ACPI Operation Region handler for 540 region 0xA1. AML methods can use this OpRegion to call arbitrary 541 native firmware functions. The driver installs the OpRegion 542 handler if there is an HPQ5001 device or if the user supplies 543 the "force" module parameter, e.g., with the "aml_nfw.force" 544 kernel command line option. 545 546source "drivers/sn/Kconfig" 547 548config KEXEC 549 bool "kexec system call" 550 depends on !IA64_HP_SIM && (!SMP || HOTPLUG_CPU) 551 help 552 kexec is a system call that implements the ability to shutdown your 553 current kernel, and to start another kernel. It is like a reboot 554 but it is independent of the system firmware. And like a reboot 555 you can start any kernel with it, not just Linux. 556 557 The name comes from the similarity to the exec system call. 558 559 It is an ongoing process to be certain the hardware in a machine 560 is properly shutdown, so do not be surprised if this code does not 561 initially work for you. As of this writing the exact hardware 562 interface is strongly in flux, so no good recommendation can be 563 made. 564 565config CRASH_DUMP 566 bool "kernel crash dumps" 567 depends on IA64_MCA_RECOVERY && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU) 568 help 569 Generate crash dump after being started by kexec. 570 571source "drivers/firmware/Kconfig" 572 573source "fs/Kconfig.binfmt" 574 575endmenu 576 577menu "Power management and ACPI options" 578 579source "kernel/power/Kconfig" 580 581source "drivers/acpi/Kconfig" 582 583if PM 584menu "CPU Frequency scaling" 585source "drivers/cpufreq/Kconfig" 586endmenu 587endif 588 589endmenu 590 591if !IA64_HP_SIM 592 593menu "Bus options (PCI, PCMCIA)" 594 595config PCI 596 bool "PCI support" 597 help 598 Real IA-64 machines all have PCI/PCI-X/PCI Express busses. Say Y 599 here unless you are using a simulator without PCI support. 600 601config PCI_DOMAINS 602 def_bool PCI 603 604config PCI_SYSCALL 605 def_bool PCI 606 607source "drivers/pci/pcie/Kconfig" 608 609source "drivers/pci/Kconfig" 610 611source "drivers/pci/hotplug/Kconfig" 612 613source "drivers/pcmcia/Kconfig" 614 615endmenu 616 617endif 618 619source "net/Kconfig" 620 621source "drivers/Kconfig" 622 623source "arch/ia64/hp/sim/Kconfig" 624 625config MSPEC 626 tristate "Memory special operations driver" 627 depends on IA64 628 select IA64_UNCACHED_ALLOCATOR 629 help 630 If you have an ia64 and you want to enable memory special 631 operations support (formerly known as fetchop), say Y here, 632 otherwise say N. 633 634source "fs/Kconfig" 635 636source "arch/ia64/Kconfig.debug" 637 638source "security/Kconfig" 639 640source "crypto/Kconfig" 641 642source "lib/Kconfig" 643 644config IOMMU_HELPER 645 def_bool (IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB || IA64_GENERIC || SWIOTLB) 646