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 ARCH_DISCARD_MEMBLOCK 29 select GENERIC_IRQ_PROBE 30 select GENERIC_PENDING_IRQ if SMP 31 select IRQ_PER_CPU 32 select GENERIC_IRQ_SHOW 33 select ARCH_WANT_OPTIONAL_GPIOLIB 34 select ARCH_HAVE_NMI_SAFE_CMPXCHG 35 select GENERIC_IOMAP 36 default y 37 help 38 The Itanium Processor Family is Intel's 64-bit successor to 39 the 32-bit X86 line. The IA-64 Linux project has a home 40 page at <http://www.linuxia64.org/> and a mailing list at 41 <linux-ia64@vger.kernel.org>. 42 43config 64BIT 44 bool 45 select ATA_NONSTANDARD if ATA 46 default y 47 48config ZONE_DMA 49 def_bool y 50 depends on !IA64_SGI_SN2 51 52config QUICKLIST 53 bool 54 default y 55 56config MMU 57 bool 58 default y 59 60config ARCH_DMA_ADDR_T_64BIT 61 def_bool y 62 63config NEED_DMA_MAP_STATE 64 def_bool y 65 66config NEED_SG_DMA_LENGTH 67 def_bool y 68 69config SWIOTLB 70 bool 71 72config STACKTRACE_SUPPORT 73 def_bool y 74 75config GENERIC_LOCKBREAK 76 def_bool n 77 78config RWSEM_XCHGADD_ALGORITHM 79 bool 80 default y 81 82config HUGETLB_PAGE_SIZE_VARIABLE 83 bool 84 depends on HUGETLB_PAGE 85 default y 86 87config GENERIC_CALIBRATE_DELAY 88 bool 89 default y 90 91config GENERIC_TIME_VSYSCALL 92 bool 93 default y 94 95config HAVE_SETUP_PER_CPU_AREA 96 def_bool y 97 98config GENERIC_GPIO 99 bool 100 101config DMI 102 bool 103 default y 104 105config EFI 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. 476 477# VIRTUAL_MEM_MAP and FLAT_NODE_MEM_MAP are functionally equivalent. 478# VIRTUAL_MEM_MAP has been retained for historical reasons. 479config VIRTUAL_MEM_MAP 480 bool "Virtual mem map" 481 depends on !SPARSEMEM 482 default y if !IA64_HP_SIM 483 help 484 Say Y to compile the kernel with support for a virtual mem map. 485 This code also only takes effect if a memory hole of greater than 486 1 Gb is found during boot. You must turn this option on if you 487 require the DISCONTIGMEM option for your machine. If you are 488 unsure, say Y. 489 490config HOLES_IN_ZONE 491 bool 492 default y if VIRTUAL_MEM_MAP 493 494config HAVE_ARCH_EARLY_PFN_TO_NID 495 def_bool NUMA && SPARSEMEM 496 497config HAVE_ARCH_NODEDATA_EXTENSION 498 def_bool y 499 depends on NUMA 500 501config USE_PERCPU_NUMA_NODE_ID 502 def_bool y 503 depends on NUMA 504 505config HAVE_MEMORYLESS_NODES 506 def_bool NUMA 507 508config ARCH_PROC_KCORE_TEXT 509 def_bool y 510 depends on PROC_KCORE 511 512config IA64_MCA_RECOVERY 513 tristate "MCA recovery from errors other than TLB." 514 515config PERFMON 516 bool "Performance monitor support" 517 help 518 Selects whether support for the IA-64 performance monitor hardware 519 is included in the kernel. This makes some kernel data-structures a 520 little bigger and slows down execution a bit, but it is generally 521 a good idea to turn this on. If you're unsure, say Y. 522 523config IA64_PALINFO 524 tristate "/proc/pal support" 525 help 526 If you say Y here, you are able to get PAL (Processor Abstraction 527 Layer) information in /proc/pal. This contains useful information 528 about the processors in your systems, such as cache and TLB sizes 529 and the PAL firmware version in use. 530 531 To use this option, you have to ensure that the "/proc file system 532 support" (CONFIG_PROC_FS) is enabled, too. 533 534config IA64_MC_ERR_INJECT 535 tristate "MC error injection support" 536 help 537 Adds support for MC error injection. If enabled, the kernel 538 will provide a sysfs interface for user applications to 539 call MC error injection PAL procedures to inject various errors. 540 This is a useful tool for MCA testing. 541 542 If you're unsure, do not select this option. 543 544config SGI_SN 545 def_bool y if (IA64_SGI_SN2 || IA64_GENERIC) 546 547config IA64_ESI 548 bool "ESI (Extensible SAL Interface) support" 549 help 550 If you say Y here, support is built into the kernel to 551 make ESI calls. ESI calls are used to support vendor-specific 552 firmware extensions, such as the ability to inject memory-errors 553 for test-purposes. If you're unsure, say N. 554 555config IA64_HP_AML_NFW 556 bool "Support ACPI AML calls to native firmware" 557 help 558 This driver installs a global ACPI Operation Region handler for 559 region 0xA1. AML methods can use this OpRegion to call arbitrary 560 native firmware functions. The driver installs the OpRegion 561 handler if there is an HPQ5001 device or if the user supplies 562 the "force" module parameter, e.g., with the "aml_nfw.force" 563 kernel command line option. 564 565source "drivers/sn/Kconfig" 566 567config KEXEC 568 bool "kexec system call (EXPERIMENTAL)" 569 depends on EXPERIMENTAL && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU) 570 help 571 kexec is a system call that implements the ability to shutdown your 572 current kernel, and to start another kernel. It is like a reboot 573 but it is independent of the system firmware. And like a reboot 574 you can start any kernel with it, not just Linux. 575 576 The name comes from the similarity to the exec system call. 577 578 It is an ongoing process to be certain the hardware in a machine 579 is properly shutdown, so do not be surprised if this code does not 580 initially work for you. It may help to enable device hotplugging 581 support. As of this writing the exact hardware interface is 582 strongly in flux, so no good recommendation can be made. 583 584config CRASH_DUMP 585 bool "kernel crash dumps" 586 depends on IA64_MCA_RECOVERY && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU) 587 help 588 Generate crash dump after being started by kexec. 589 590source "drivers/firmware/Kconfig" 591 592source "fs/Kconfig.binfmt" 593 594endmenu 595 596menu "Power management and ACPI options" 597 598source "kernel/power/Kconfig" 599 600source "drivers/acpi/Kconfig" 601 602if PM 603 604source "arch/ia64/kernel/cpufreq/Kconfig" 605 606endif 607 608endmenu 609 610if !IA64_HP_SIM 611 612menu "Bus options (PCI, PCMCIA)" 613 614config PCI 615 bool "PCI support" 616 help 617 Real IA-64 machines all have PCI/PCI-X/PCI Express busses. Say Y 618 here unless you are using a simulator without PCI support. 619 620config PCI_DOMAINS 621 def_bool PCI 622 623config PCI_SYSCALL 624 def_bool PCI 625 626source "drivers/pci/pcie/Kconfig" 627 628source "drivers/pci/Kconfig" 629 630source "drivers/pci/hotplug/Kconfig" 631 632source "drivers/pcmcia/Kconfig" 633 634endmenu 635 636endif 637 638source "net/Kconfig" 639 640source "drivers/Kconfig" 641 642source "arch/ia64/hp/sim/Kconfig" 643 644config MSPEC 645 tristate "Memory special operations driver" 646 depends on IA64 647 select IA64_UNCACHED_ALLOCATOR 648 help 649 If you have an ia64 and you want to enable memory special 650 operations support (formerly known as fetchop), say Y here, 651 otherwise say N. 652 653source "fs/Kconfig" 654 655source "arch/ia64/Kconfig.debug" 656 657source "security/Kconfig" 658 659source "crypto/Kconfig" 660 661source "arch/ia64/kvm/Kconfig" 662 663source "lib/Kconfig" 664 665config IOMMU_HELPER 666 def_bool (IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB || IA64_GENERIC || SWIOTLB) 667