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