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 GENERIC_IRQ_PROBE 27 select GENERIC_PENDING_IRQ if SMP 28 select IRQ_PER_CPU 29 select GENERIC_IRQ_SHOW 30 select ARCH_WANT_OPTIONAL_GPIOLIB 31 select ARCH_HAVE_NMI_SAFE_CMPXCHG 32 default y 33 help 34 The Itanium Processor Family is Intel's 64-bit successor to 35 the 32-bit X86 line. The IA-64 Linux project has a home 36 page at <http://www.linuxia64.org/> and a mailing list at 37 <linux-ia64@vger.kernel.org>. 38 39config 64BIT 40 bool 41 select ATA_NONSTANDARD if ATA 42 default y 43 44config ZONE_DMA 45 def_bool y 46 depends on !IA64_SGI_SN2 47 48config QUICKLIST 49 bool 50 default y 51 52config MMU 53 bool 54 default y 55 56config ARCH_DMA_ADDR_T_64BIT 57 def_bool y 58 59config NEED_DMA_MAP_STATE 60 def_bool y 61 62config NEED_SG_DMA_LENGTH 63 def_bool y 64 65config SWIOTLB 66 bool 67 68config STACKTRACE_SUPPORT 69 def_bool y 70 71config GENERIC_LOCKBREAK 72 def_bool n 73 74config RWSEM_XCHGADD_ALGORITHM 75 bool 76 default y 77 78config HUGETLB_PAGE_SIZE_VARIABLE 79 bool 80 depends on HUGETLB_PAGE 81 default y 82 83config GENERIC_CALIBRATE_DELAY 84 bool 85 default y 86 87config GENERIC_TIME_VSYSCALL 88 bool 89 default y 90 91config HAVE_SETUP_PER_CPU_AREA 92 def_bool y 93 94config GENERIC_GPIO 95 bool 96 97config DMI 98 bool 99 default y 100 101config EFI 102 bool 103 default y 104 105config GENERIC_IOMAP 106 bool 107 default y 108 109config ARCH_CLOCKSOURCE_DATA 110 def_bool y 111 112config SCHED_OMIT_FRAME_POINTER 113 bool 114 default y 115 116config IA64_UNCACHED_ALLOCATOR 117 bool 118 select GENERIC_ALLOCATOR 119 120config ARCH_USES_PG_UNCACHED 121 def_bool y 122 depends on IA64_UNCACHED_ALLOCATOR 123 124config AUDIT_ARCH 125 bool 126 default y 127 128menuconfig PARAVIRT_GUEST 129 bool "Paravirtualized guest support" 130 help 131 Say Y here to get to see options related to running Linux under 132 various hypervisors. This option alone does not add any kernel code. 133 134 If you say N, all options in this submenu will be skipped and disabled. 135 136if PARAVIRT_GUEST 137 138config PARAVIRT 139 bool "Enable paravirtualization code" 140 depends on PARAVIRT_GUEST 141 default y 142 bool 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 DMAR 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 VIRT_CPU_ACCOUNTING 346 bool "Deterministic task and CPU time accounting" 347 default n 348 help 349 Select this option to enable more accurate task and CPU time 350 accounting. This is done by reading a CPU counter on each 351 kernel entry and exit and on transitions within the kernel 352 between system, softirq and hardirq state, so there is a 353 small performance impact. 354 If in doubt, say N here. 355 356config SMP 357 bool "Symmetric multi-processing support" 358 select USE_GENERIC_SMP_HELPERS 359 help 360 This enables support for systems with more than one CPU. If you have 361 a system with only one CPU, say N. If you have a system with more 362 than one CPU, say Y. 363 364 If you say N here, the kernel will run on single and multiprocessor 365 systems, but will use only one CPU of a multiprocessor system. If 366 you say Y here, the kernel will run on many, but not all, 367 single processor systems. On a single processor system, the kernel 368 will run faster if you say N here. 369 370 See also the SMP-HOWTO available at 371 <http://www.tldp.org/docs.html#howto>. 372 373 If you don't know what to do here, say N. 374 375config NR_CPUS 376 int "Maximum number of CPUs (2-4096)" 377 range 2 4096 378 depends on SMP 379 default "4096" 380 help 381 You should set this to the number of CPUs in your system, but 382 keep in mind that a kernel compiled for, e.g., 2 CPUs will boot but 383 only use 2 CPUs on a >2 CPU system. Setting this to a value larger 384 than 64 will cause the use of a CPU mask array, causing a small 385 performance hit. 386 387config HOTPLUG_CPU 388 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)" 389 depends on SMP && EXPERIMENTAL 390 select HOTPLUG 391 default n 392 ---help--- 393 Say Y here to experiment with turning CPUs off and on. CPUs 394 can be controlled through /sys/devices/system/cpu/cpu#. 395 Say N if you want to disable CPU hotplug. 396 397config ARCH_ENABLE_MEMORY_HOTPLUG 398 def_bool y 399 400config ARCH_ENABLE_MEMORY_HOTREMOVE 401 def_bool y 402 403config SCHED_SMT 404 bool "SMT scheduler support" 405 depends on SMP 406 help 407 Improves the CPU scheduler's decision making when dealing with 408 Intel IA64 chips with MultiThreading at a cost of slightly increased 409 overhead in some places. If unsure say N here. 410 411config PERMIT_BSP_REMOVE 412 bool "Support removal of Bootstrap Processor" 413 depends on HOTPLUG_CPU 414 default n 415 ---help--- 416 Say Y here if your platform SAL will support removal of BSP with HOTPLUG_CPU 417 support. 418 419config FORCE_CPEI_RETARGET 420 bool "Force assumption that CPEI can be re-targeted" 421 depends on PERMIT_BSP_REMOVE 422 default n 423 ---help--- 424 Say Y if you need to force the assumption that CPEI can be re-targeted to 425 any cpu in the system. This hint is available via ACPI 3.0 specifications. 426 Tiger4 systems are capable of re-directing CPEI to any CPU other than BSP. 427 This option it useful to enable this feature on older BIOS's as well. 428 You can also enable this by using boot command line option force_cpei=1. 429 430source "kernel/Kconfig.preempt" 431 432source "mm/Kconfig" 433 434config ARCH_SELECT_MEMORY_MODEL 435 def_bool y 436 437config ARCH_DISCONTIGMEM_ENABLE 438 def_bool y 439 help 440 Say Y to support efficient handling of discontiguous physical memory, 441 for architectures which are either NUMA (Non-Uniform Memory Access) 442 or have huge holes in the physical address space for other reasons. 443 See <file:Documentation/vm/numa> for more. 444 445config ARCH_FLATMEM_ENABLE 446 def_bool y 447 448config ARCH_SPARSEMEM_ENABLE 449 def_bool y 450 depends on ARCH_DISCONTIGMEM_ENABLE 451 select SPARSEMEM_VMEMMAP_ENABLE 452 453config ARCH_DISCONTIGMEM_DEFAULT 454 def_bool y if (IA64_SGI_SN2 || IA64_GENERIC || IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB) 455 depends on ARCH_DISCONTIGMEM_ENABLE 456 457config NUMA 458 bool "NUMA support" 459 depends on !IA64_HP_SIM && !FLATMEM 460 default y if IA64_SGI_SN2 461 select ACPI_NUMA if ACPI 462 help 463 Say Y to compile the kernel to support NUMA (Non-Uniform Memory 464 Access). This option is for configuring high-end multiprocessor 465 server systems. If in doubt, say N. 466 467config NODES_SHIFT 468 int "Max num nodes shift(3-10)" 469 range 3 10 470 default "10" 471 depends on NEED_MULTIPLE_NODES 472 help 473 This option specifies the maximum number of nodes in your SSI system. 474 MAX_NUMNODES will be 2^(This value). 475 If in doubt, use the default. 476 477config ARCH_POPULATES_NODE_MAP 478 def_bool y 479 480# VIRTUAL_MEM_MAP and FLAT_NODE_MEM_MAP are functionally equivalent. 481# VIRTUAL_MEM_MAP has been retained for historical reasons. 482config VIRTUAL_MEM_MAP 483 bool "Virtual mem map" 484 depends on !SPARSEMEM 485 default y if !IA64_HP_SIM 486 help 487 Say Y to compile the kernel with support for a virtual mem map. 488 This code also only takes effect if a memory hole of greater than 489 1 Gb is found during boot. You must turn this option on if you 490 require the DISCONTIGMEM option for your machine. If you are 491 unsure, say Y. 492 493config HOLES_IN_ZONE 494 bool 495 default y if VIRTUAL_MEM_MAP 496 497config HAVE_ARCH_EARLY_PFN_TO_NID 498 def_bool NUMA && SPARSEMEM 499 500config HAVE_ARCH_NODEDATA_EXTENSION 501 def_bool y 502 depends on NUMA 503 504config USE_PERCPU_NUMA_NODE_ID 505 def_bool y 506 depends on NUMA 507 508config HAVE_MEMORYLESS_NODES 509 def_bool NUMA 510 511config ARCH_PROC_KCORE_TEXT 512 def_bool y 513 depends on PROC_KCORE 514 515config IA64_MCA_RECOVERY 516 tristate "MCA recovery from errors other than TLB." 517 518config PERFMON 519 bool "Performance monitor support" 520 help 521 Selects whether support for the IA-64 performance monitor hardware 522 is included in the kernel. This makes some kernel data-structures a 523 little bigger and slows down execution a bit, but it is generally 524 a good idea to turn this on. If you're unsure, say Y. 525 526config IA64_PALINFO 527 tristate "/proc/pal support" 528 help 529 If you say Y here, you are able to get PAL (Processor Abstraction 530 Layer) information in /proc/pal. This contains useful information 531 about the processors in your systems, such as cache and TLB sizes 532 and the PAL firmware version in use. 533 534 To use this option, you have to ensure that the "/proc file system 535 support" (CONFIG_PROC_FS) is enabled, too. 536 537config IA64_MC_ERR_INJECT 538 tristate "MC error injection support" 539 help 540 Adds support for MC error injection. If enabled, the kernel 541 will provide a sysfs interface for user applications to 542 call MC error injection PAL procedures to inject various errors. 543 This is a useful tool for MCA testing. 544 545 If you're unsure, do not select this option. 546 547config SGI_SN 548 def_bool y if (IA64_SGI_SN2 || IA64_GENERIC) 549 550config IA64_ESI 551 bool "ESI (Extensible SAL Interface) support" 552 help 553 If you say Y here, support is built into the kernel to 554 make ESI calls. ESI calls are used to support vendor-specific 555 firmware extensions, such as the ability to inject memory-errors 556 for test-purposes. If you're unsure, say N. 557 558config IA64_HP_AML_NFW 559 bool "Support ACPI AML calls to native firmware" 560 help 561 This driver installs a global ACPI Operation Region handler for 562 region 0xA1. AML methods can use this OpRegion to call arbitrary 563 native firmware functions. The driver installs the OpRegion 564 handler if there is an HPQ5001 device or if the user supplies 565 the "force" module parameter, e.g., with the "aml_nfw.force" 566 kernel command line option. 567 568source "drivers/sn/Kconfig" 569 570config KEXEC 571 bool "kexec system call (EXPERIMENTAL)" 572 depends on EXPERIMENTAL && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU) 573 help 574 kexec is a system call that implements the ability to shutdown your 575 current kernel, and to start another kernel. It is like a reboot 576 but it is independent of the system firmware. And like a reboot 577 you can start any kernel with it, not just Linux. 578 579 The name comes from the similarity to the exec system call. 580 581 It is an ongoing process to be certain the hardware in a machine 582 is properly shutdown, so do not be surprised if this code does not 583 initially work for you. It may help to enable device hotplugging 584 support. As of this writing the exact hardware interface is 585 strongly in flux, so no good recommendation can be made. 586 587config CRASH_DUMP 588 bool "kernel crash dumps" 589 depends on IA64_MCA_RECOVERY && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU) 590 help 591 Generate crash dump after being started by kexec. 592 593source "drivers/firmware/Kconfig" 594 595source "fs/Kconfig.binfmt" 596 597endmenu 598 599menu "Power management and ACPI options" 600 601source "kernel/power/Kconfig" 602 603source "drivers/acpi/Kconfig" 604 605if PM 606 607source "arch/ia64/kernel/cpufreq/Kconfig" 608 609endif 610 611endmenu 612 613if !IA64_HP_SIM 614 615menu "Bus options (PCI, PCMCIA)" 616 617config PCI 618 bool "PCI support" 619 help 620 Real IA-64 machines all have PCI/PCI-X/PCI Express busses. Say Y 621 here unless you are using a simulator without PCI support. 622 623config PCI_DOMAINS 624 def_bool PCI 625 626config PCI_SYSCALL 627 def_bool PCI 628 629source "drivers/pci/pcie/Kconfig" 630 631source "drivers/pci/Kconfig" 632 633source "drivers/pci/hotplug/Kconfig" 634 635source "drivers/pcmcia/Kconfig" 636 637endmenu 638 639endif 640 641source "net/Kconfig" 642 643source "drivers/Kconfig" 644 645source "arch/ia64/hp/sim/Kconfig" 646 647config MSPEC 648 tristate "Memory special operations driver" 649 depends on IA64 650 select IA64_UNCACHED_ALLOCATOR 651 help 652 If you have an ia64 and you want to enable memory special 653 operations support (formerly known as fetchop), say Y here, 654 otherwise say N. 655 656source "fs/Kconfig" 657 658source "arch/ia64/Kconfig.debug" 659 660source "security/Kconfig" 661 662source "crypto/Kconfig" 663 664source "arch/ia64/kvm/Kconfig" 665 666source "lib/Kconfig" 667 668config IOMMU_HELPER 669 def_bool (IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB || IA64_GENERIC || SWIOTLB) 670