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