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 GENERIC_GPIO 105 bool 106 107config DMI 108 bool 109 default y 110 111config EFI 112 bool 113 default y 114 115config SCHED_OMIT_FRAME_POINTER 116 bool 117 default y 118 119config IA64_UNCACHED_ALLOCATOR 120 bool 121 select GENERIC_ALLOCATOR 122 123config ARCH_USES_PG_UNCACHED 124 def_bool y 125 depends on IA64_UNCACHED_ALLOCATOR 126 127config AUDIT_ARCH 128 bool 129 default y 130 131menuconfig PARAVIRT_GUEST 132 bool "Paravirtualized guest support" 133 depends on BROKEN 134 help 135 Say Y here to get to see options related to running Linux under 136 various hypervisors. This option alone does not add any kernel code. 137 138 If you say N, all options in this submenu will be skipped and disabled. 139 140if PARAVIRT_GUEST 141 142config PARAVIRT 143 bool "Enable paravirtualization code" 144 depends on PARAVIRT_GUEST 145 default y 146 help 147 This changes the kernel so it can modify itself when it is run 148 under a hypervisor, potentially improving performance significantly 149 over full virtualization. However, when run without a hypervisor 150 the kernel is theoretically slower and slightly larger. 151 152 153source "arch/ia64/xen/Kconfig" 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 Xen-domU For xen domU system 181 182 If you don't know what to do, choose "generic". 183 184config IA64_DIG 185 bool "DIG-compliant" 186 select SWIOTLB 187 188config IA64_DIG_VTD 189 bool "DIG+Intel+IOMMU" 190 select DMAR 191 select PCI_MSI 192 193config IA64_HP_ZX1 194 bool "HP-zx1/sx1000" 195 help 196 Build a kernel that runs on HP zx1 and sx1000 systems. This adds 197 support for the HP I/O MMU. 198 199config IA64_HP_ZX1_SWIOTLB 200 bool "HP-zx1/sx1000 with software I/O TLB" 201 select SWIOTLB 202 help 203 Build a kernel that runs on HP zx1 and sx1000 systems even when they 204 have broken PCI devices which cannot DMA to full 32 bits. Apart 205 from support for the HP I/O MMU, this includes support for the software 206 I/O TLB, which allows supporting the broken devices at the expense of 207 wasting some kernel memory (about 2MB by default). 208 209config IA64_SGI_SN2 210 bool "SGI-SN2" 211 select NUMA 212 select ACPI_NUMA 213 help 214 Selecting this option will optimize the kernel for use on sn2 based 215 systems, but the resulting kernel binary will not run on other 216 types of ia64 systems. If you have an SGI Altix system, it's safe 217 to select this option. If in doubt, select ia64 generic support 218 instead. 219 220config IA64_SGI_UV 221 bool "SGI-UV" 222 select NUMA 223 select ACPI_NUMA 224 select SWIOTLB 225 help 226 Selecting this option will optimize the kernel for use on UV based 227 systems, but the resulting kernel binary will not run on other 228 types of ia64 systems. If you have an SGI UV system, it's safe 229 to select this option. If in doubt, select ia64 generic support 230 instead. 231 232config IA64_HP_SIM 233 bool "Ski-simulator" 234 select SWIOTLB 235 236config IA64_XEN_GUEST 237 bool "Xen guest" 238 select SWIOTLB 239 depends on XEN 240 help 241 Build a kernel that runs on Xen guest domain. At this moment only 242 16KB page size in supported. 243 244endchoice 245 246choice 247 prompt "Processor type" 248 default ITANIUM 249 250config ITANIUM 251 bool "Itanium" 252 help 253 Select your IA-64 processor type. The default is Itanium. 254 This choice is safe for all IA-64 systems, but may not perform 255 optimally on systems with, say, Itanium 2 or newer processors. 256 257config MCKINLEY 258 bool "Itanium 2" 259 help 260 Select this to configure for an Itanium 2 (McKinley) processor. 261 262endchoice 263 264choice 265 prompt "Kernel page size" 266 default IA64_PAGE_SIZE_16KB 267 268config IA64_PAGE_SIZE_4KB 269 bool "4KB" 270 help 271 This lets you select the page size of the kernel. For best IA-64 272 performance, a page size of 8KB or 16KB is recommended. For best 273 IA-32 compatibility, a page size of 4KB should be selected (the vast 274 majority of IA-32 binaries work perfectly fine with a larger page 275 size). For Itanium 2 or newer systems, a page size of 64KB can also 276 be selected. 277 278 4KB For best IA-32 compatibility 279 8KB For best IA-64 performance 280 16KB For best IA-64 performance 281 64KB Requires Itanium 2 or newer processor. 282 283 If you don't know what to do, choose 16KB. 284 285config IA64_PAGE_SIZE_8KB 286 bool "8KB" 287 288config IA64_PAGE_SIZE_16KB 289 bool "16KB" 290 291config IA64_PAGE_SIZE_64KB 292 depends on !ITANIUM 293 bool "64KB" 294 295endchoice 296 297choice 298 prompt "Page Table Levels" 299 default PGTABLE_3 300 301config PGTABLE_3 302 bool "3 Levels" 303 304config PGTABLE_4 305 depends on !IA64_PAGE_SIZE_64KB 306 bool "4 Levels" 307 308endchoice 309 310if IA64_HP_SIM 311config HZ 312 default 32 313endif 314 315if !IA64_HP_SIM 316source kernel/Kconfig.hz 317endif 318 319config IA64_BRL_EMU 320 bool 321 depends on ITANIUM 322 default y 323 324# align cache-sensitive data to 128 bytes 325config IA64_L1_CACHE_SHIFT 326 int 327 default "7" if MCKINLEY 328 default "6" if ITANIUM 329 330config IA64_CYCLONE 331 bool "Cyclone (EXA) Time Source support" 332 help 333 Say Y here to enable support for IBM EXA Cyclone time source. 334 If you're unsure, answer N. 335 336config IOSAPIC 337 bool 338 depends on !IA64_HP_SIM 339 default y 340 341config FORCE_MAX_ZONEORDER 342 int "MAX_ORDER (11 - 17)" if !HUGETLB_PAGE 343 range 11 17 if !HUGETLB_PAGE 344 default "17" if HUGETLB_PAGE 345 default "11" 346 347config SMP 348 bool "Symmetric multi-processing support" 349 select USE_GENERIC_SMP_HELPERS 350 help 351 This enables support for systems with more than one CPU. If you have 352 a system with only one CPU, say N. If you have a system with more 353 than one CPU, say Y. 354 355 If you say N here, the kernel will run on single and multiprocessor 356 systems, but will use only one CPU of a multiprocessor system. If 357 you say Y here, the kernel will run on many, but not all, 358 single processor systems. On a single processor system, the kernel 359 will run faster if you say N here. 360 361 See also the SMP-HOWTO available at 362 <http://www.tldp.org/docs.html#howto>. 363 364 If you don't know what to do here, say N. 365 366config NR_CPUS 367 int "Maximum number of CPUs (2-4096)" 368 range 2 4096 369 depends on SMP 370 default "4096" 371 help 372 You should set this to the number of CPUs in your system, but 373 keep in mind that a kernel compiled for, e.g., 2 CPUs will boot but 374 only use 2 CPUs on a >2 CPU system. Setting this to a value larger 375 than 64 will cause the use of a CPU mask array, causing a small 376 performance hit. 377 378config HOTPLUG_CPU 379 bool "Support for hot-pluggable CPUs" 380 depends on SMP 381 select HOTPLUG 382 default n 383 ---help--- 384 Say Y here to experiment with turning CPUs off and on. CPUs 385 can be controlled through /sys/devices/system/cpu/cpu#. 386 Say N if you want to disable CPU hotplug. 387 388config ARCH_ENABLE_MEMORY_HOTPLUG 389 def_bool y 390 391config ARCH_ENABLE_MEMORY_HOTREMOVE 392 def_bool y 393 394config SCHED_SMT 395 bool "SMT scheduler support" 396 depends on SMP 397 help 398 Improves the CPU scheduler's decision making when dealing with 399 Intel IA64 chips with MultiThreading at a cost of slightly increased 400 overhead in some places. If unsure say N here. 401 402config PERMIT_BSP_REMOVE 403 bool "Support removal of Bootstrap Processor" 404 depends on HOTPLUG_CPU 405 default n 406 ---help--- 407 Say Y here if your platform SAL will support removal of BSP with HOTPLUG_CPU 408 support. 409 410config FORCE_CPEI_RETARGET 411 bool "Force assumption that CPEI can be re-targeted" 412 depends on PERMIT_BSP_REMOVE 413 default n 414 ---help--- 415 Say Y if you need to force the assumption that CPEI can be re-targeted to 416 any cpu in the system. This hint is available via ACPI 3.0 specifications. 417 Tiger4 systems are capable of re-directing CPEI to any CPU other than BSP. 418 This option it useful to enable this feature on older BIOS's as well. 419 You can also enable this by using boot command line option force_cpei=1. 420 421source "kernel/Kconfig.preempt" 422 423source "mm/Kconfig" 424 425config ARCH_SELECT_MEMORY_MODEL 426 def_bool y 427 428config ARCH_DISCONTIGMEM_ENABLE 429 def_bool y 430 help 431 Say Y to support efficient handling of discontiguous physical memory, 432 for architectures which are either NUMA (Non-Uniform Memory Access) 433 or have huge holes in the physical address space for other reasons. 434 See <file:Documentation/vm/numa> for more. 435 436config ARCH_FLATMEM_ENABLE 437 def_bool y 438 439config ARCH_SPARSEMEM_ENABLE 440 def_bool y 441 depends on ARCH_DISCONTIGMEM_ENABLE 442 select SPARSEMEM_VMEMMAP_ENABLE 443 444config ARCH_DISCONTIGMEM_DEFAULT 445 def_bool y if (IA64_SGI_SN2 || IA64_GENERIC || IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB) 446 depends on ARCH_DISCONTIGMEM_ENABLE 447 448config NUMA 449 bool "NUMA support" 450 depends on !IA64_HP_SIM && !FLATMEM 451 default y if IA64_SGI_SN2 452 select ACPI_NUMA if ACPI 453 help 454 Say Y to compile the kernel to support NUMA (Non-Uniform Memory 455 Access). This option is for configuring high-end multiprocessor 456 server systems. If in doubt, say N. 457 458config NODES_SHIFT 459 int "Max num nodes shift(3-10)" 460 range 3 10 461 default "10" 462 depends on NEED_MULTIPLE_NODES 463 help 464 This option specifies the maximum number of nodes in your SSI system. 465 MAX_NUMNODES will be 2^(This value). 466 If in doubt, use the default. 467 468# VIRTUAL_MEM_MAP and FLAT_NODE_MEM_MAP are functionally equivalent. 469# VIRTUAL_MEM_MAP has been retained for historical reasons. 470config VIRTUAL_MEM_MAP 471 bool "Virtual mem map" 472 depends on !SPARSEMEM 473 default y if !IA64_HP_SIM 474 help 475 Say Y to compile the kernel with support for a virtual mem map. 476 This code also only takes effect if a memory hole of greater than 477 1 Gb is found during boot. You must turn this option on if you 478 require the DISCONTIGMEM option for your machine. If you are 479 unsure, say Y. 480 481config HOLES_IN_ZONE 482 bool 483 default y if VIRTUAL_MEM_MAP 484 485config HAVE_ARCH_EARLY_PFN_TO_NID 486 def_bool NUMA && SPARSEMEM 487 488config HAVE_ARCH_NODEDATA_EXTENSION 489 def_bool y 490 depends on NUMA 491 492config USE_PERCPU_NUMA_NODE_ID 493 def_bool y 494 depends on NUMA 495 496config HAVE_MEMORYLESS_NODES 497 def_bool NUMA 498 499config ARCH_PROC_KCORE_TEXT 500 def_bool y 501 depends on PROC_KCORE 502 503config IA64_MCA_RECOVERY 504 tristate "MCA recovery from errors other than TLB." 505 506config PERFMON 507 bool "Performance monitor support" 508 help 509 Selects whether support for the IA-64 performance monitor hardware 510 is included in the kernel. This makes some kernel data-structures a 511 little bigger and slows down execution a bit, but it is generally 512 a good idea to turn this on. If you're unsure, say Y. 513 514config IA64_PALINFO 515 tristate "/proc/pal support" 516 help 517 If you say Y here, you are able to get PAL (Processor Abstraction 518 Layer) information in /proc/pal. This contains useful information 519 about the processors in your systems, such as cache and TLB sizes 520 and the PAL firmware version in use. 521 522 To use this option, you have to ensure that the "/proc file system 523 support" (CONFIG_PROC_FS) is enabled, too. 524 525config IA64_MC_ERR_INJECT 526 tristate "MC error injection support" 527 help 528 Adds support for MC error injection. If enabled, the kernel 529 will provide a sysfs interface for user applications to 530 call MC error injection PAL procedures to inject various errors. 531 This is a useful tool for MCA testing. 532 533 If you're unsure, do not select this option. 534 535config SGI_SN 536 def_bool y if (IA64_SGI_SN2 || IA64_GENERIC) 537 538config IA64_ESI 539 bool "ESI (Extensible SAL Interface) support" 540 help 541 If you say Y here, support is built into the kernel to 542 make ESI calls. ESI calls are used to support vendor-specific 543 firmware extensions, such as the ability to inject memory-errors 544 for test-purposes. If you're unsure, say N. 545 546config IA64_HP_AML_NFW 547 bool "Support ACPI AML calls to native firmware" 548 help 549 This driver installs a global ACPI Operation Region handler for 550 region 0xA1. AML methods can use this OpRegion to call arbitrary 551 native firmware functions. The driver installs the OpRegion 552 handler if there is an HPQ5001 device or if the user supplies 553 the "force" module parameter, e.g., with the "aml_nfw.force" 554 kernel command line option. 555 556source "drivers/sn/Kconfig" 557 558config KEXEC 559 bool "kexec system call" 560 depends on !IA64_HP_SIM && (!SMP || HOTPLUG_CPU) 561 help 562 kexec is a system call that implements the ability to shutdown your 563 current kernel, and to start another kernel. It is like a reboot 564 but it is independent of the system firmware. And like a reboot 565 you can start any kernel with it, not just Linux. 566 567 The name comes from the similarity to the exec system call. 568 569 It is an ongoing process to be certain the hardware in a machine 570 is properly shutdown, so do not be surprised if this code does not 571 initially work for you. It may help to enable device hotplugging 572 support. As of this writing the exact hardware interface is 573 strongly in flux, so no good recommendation can be made. 574 575config CRASH_DUMP 576 bool "kernel crash dumps" 577 depends on IA64_MCA_RECOVERY && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU) 578 help 579 Generate crash dump after being started by kexec. 580 581source "drivers/firmware/Kconfig" 582 583source "fs/Kconfig.binfmt" 584 585endmenu 586 587menu "Power management and ACPI options" 588 589source "kernel/power/Kconfig" 590 591source "drivers/acpi/Kconfig" 592 593if PM 594 595source "arch/ia64/kernel/cpufreq/Kconfig" 596 597endif 598 599endmenu 600 601if !IA64_HP_SIM 602 603menu "Bus options (PCI, PCMCIA)" 604 605config PCI 606 bool "PCI support" 607 help 608 Real IA-64 machines all have PCI/PCI-X/PCI Express busses. Say Y 609 here unless you are using a simulator without PCI support. 610 611config PCI_DOMAINS 612 def_bool PCI 613 614config PCI_SYSCALL 615 def_bool PCI 616 617source "drivers/pci/pcie/Kconfig" 618 619source "drivers/pci/Kconfig" 620 621source "drivers/pci/hotplug/Kconfig" 622 623source "drivers/pcmcia/Kconfig" 624 625endmenu 626 627endif 628 629source "net/Kconfig" 630 631source "drivers/Kconfig" 632 633source "arch/ia64/hp/sim/Kconfig" 634 635config MSPEC 636 tristate "Memory special operations driver" 637 depends on IA64 638 select IA64_UNCACHED_ALLOCATOR 639 help 640 If you have an ia64 and you want to enable memory special 641 operations support (formerly known as fetchop), say Y here, 642 otherwise say N. 643 644source "fs/Kconfig" 645 646source "arch/ia64/Kconfig.debug" 647 648source "security/Kconfig" 649 650source "crypto/Kconfig" 651 652source "arch/ia64/kvm/Kconfig" 653 654source "lib/Kconfig" 655 656config IOMMU_HELPER 657 def_bool (IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB || IA64_GENERIC || SWIOTLB) 658