1# SPDX-License-Identifier: GPL-2.0 2config PGTABLE_LEVELS 3 int "Page Table Levels" if !IA64_PAGE_SIZE_64KB 4 range 3 4 if !IA64_PAGE_SIZE_64KB 5 default 3 6 7source "init/Kconfig" 8 9source "kernel/Kconfig.freezer" 10 11menu "Processor type and features" 12 13config IA64 14 bool 15 select ARCH_MIGHT_HAVE_PC_PARPORT 16 select ARCH_MIGHT_HAVE_PC_SERIO 17 select PCI if (!IA64_HP_SIM) 18 select ACPI if (!IA64_HP_SIM) 19 select ACPI_SYSTEM_POWER_STATES_SUPPORT if ACPI 20 select ARCH_MIGHT_HAVE_ACPI_PDC if ACPI 21 select HAVE_UNSTABLE_SCHED_CLOCK 22 select HAVE_EXIT_THREAD 23 select HAVE_IDE 24 select HAVE_OPROFILE 25 select HAVE_KPROBES 26 select HAVE_KRETPROBES 27 select HAVE_FTRACE_MCOUNT_RECORD 28 select HAVE_DYNAMIC_FTRACE if (!ITANIUM) 29 select HAVE_FUNCTION_TRACER 30 select TTY 31 select HAVE_ARCH_TRACEHOOK 32 select HAVE_DMA_API_DEBUG 33 select HAVE_MEMBLOCK 34 select HAVE_MEMBLOCK_NODE_MAP 35 select HAVE_VIRT_CPU_ACCOUNTING 36 select ARCH_HAS_DMA_MARK_CLEAN 37 select ARCH_HAS_SG_CHAIN 38 select VIRT_TO_BUS 39 select ARCH_DISCARD_MEMBLOCK 40 select GENERIC_IRQ_PROBE 41 select GENERIC_PENDING_IRQ if SMP 42 select GENERIC_IRQ_SHOW 43 select GENERIC_IRQ_LEGACY 44 select ARCH_HAVE_NMI_SAFE_CMPXCHG 45 select GENERIC_IOMAP 46 select GENERIC_SMP_IDLE_THREAD 47 select ARCH_TASK_STRUCT_ON_STACK 48 select ARCH_TASK_STRUCT_ALLOCATOR 49 select ARCH_THREAD_STACK_ALLOCATOR 50 select ARCH_CLOCKSOURCE_DATA 51 select GENERIC_TIME_VSYSCALL 52 select SYSCTL_ARCH_UNALIGN_NO_WARN 53 select HAVE_MOD_ARCH_SPECIFIC 54 select MODULES_USE_ELF_RELA 55 select ARCH_USE_CMPXCHG_LOCKREF 56 select HAVE_ARCH_AUDITSYSCALL 57 default y 58 help 59 The Itanium Processor Family is Intel's 64-bit successor to 60 the 32-bit X86 line. The IA-64 Linux project has a home 61 page at <http://www.linuxia64.org/> and a mailing list at 62 <linux-ia64@vger.kernel.org>. 63 64config 64BIT 65 bool 66 select ATA_NONSTANDARD if ATA 67 default y 68 69config ZONE_DMA32 70 def_bool y 71 depends on !IA64_SGI_SN2 72 73config QUICKLIST 74 bool 75 default y 76 77config MMU 78 bool 79 default y 80 81config ARCH_DMA_ADDR_T_64BIT 82 def_bool y 83 84config NEED_DMA_MAP_STATE 85 def_bool y 86 87config NEED_SG_DMA_LENGTH 88 def_bool y 89 90config SWIOTLB 91 bool 92 93config STACKTRACE_SUPPORT 94 def_bool y 95 96config GENERIC_LOCKBREAK 97 def_bool n 98 99config RWSEM_XCHGADD_ALGORITHM 100 bool 101 default y 102 103config HUGETLB_PAGE_SIZE_VARIABLE 104 bool 105 depends on HUGETLB_PAGE 106 default y 107 108config GENERIC_CALIBRATE_DELAY 109 bool 110 default y 111 112config HAVE_SETUP_PER_CPU_AREA 113 def_bool y 114 115config DMI 116 bool 117 default y 118 select DMI_SCAN_MACHINE_NON_EFI_FALLBACK 119 120config EFI 121 bool 122 select UCS2_STRING 123 default y 124 125config SCHED_OMIT_FRAME_POINTER 126 bool 127 default y 128 129config IA64_UNCACHED_ALLOCATOR 130 bool 131 select GENERIC_ALLOCATOR 132 133config ARCH_USES_PG_UNCACHED 134 def_bool y 135 depends on IA64_UNCACHED_ALLOCATOR 136 137config AUDIT_ARCH 138 bool 139 default y 140 141choice 142 prompt "System type" 143 default IA64_GENERIC 144 145config IA64_GENERIC 146 bool "generic" 147 select NUMA 148 select ACPI_NUMA 149 select DMA_DIRECT_OPS 150 select SWIOTLB 151 select PCI_MSI 152 help 153 This selects the system type of your hardware. A "generic" kernel 154 will run on any supported IA-64 system. However, if you configure 155 a kernel for your specific system, it will be faster and smaller. 156 157 generic For any supported IA-64 system 158 DIG-compliant For DIG ("Developer's Interface Guide") compliant systems 159 DIG+Intel+IOMMU For DIG systems with Intel IOMMU 160 HP-zx1/sx1000 For HP systems 161 HP-zx1/sx1000+swiotlb For HP systems with (broken) DMA-constrained devices. 162 SGI-SN2 For SGI Altix systems 163 SGI-UV For SGI UV systems 164 Ski-simulator For the HP simulator <http://www.hpl.hp.com/research/linux/ski/> 165 166 If you don't know what to do, choose "generic". 167 168config IA64_DIG 169 bool "DIG-compliant" 170 select DMA_DIRECT_OPS 171 select SWIOTLB 172 173config IA64_DIG_VTD 174 bool "DIG+Intel+IOMMU" 175 select INTEL_IOMMU 176 select PCI_MSI 177 178config IA64_HP_ZX1 179 bool "HP-zx1/sx1000" 180 help 181 Build a kernel that runs on HP zx1 and sx1000 systems. This adds 182 support for the HP I/O MMU. 183 184config IA64_HP_ZX1_SWIOTLB 185 bool "HP-zx1/sx1000 with software I/O TLB" 186 select DMA_DIRECT_OPS 187 select SWIOTLB 188 help 189 Build a kernel that runs on HP zx1 and sx1000 systems even when they 190 have broken PCI devices which cannot DMA to full 32 bits. Apart 191 from support for the HP I/O MMU, this includes support for the software 192 I/O TLB, which allows supporting the broken devices at the expense of 193 wasting some kernel memory (about 2MB by default). 194 195config IA64_SGI_SN2 196 bool "SGI-SN2" 197 select NUMA 198 select ACPI_NUMA 199 help 200 Selecting this option will optimize the kernel for use on sn2 based 201 systems, but the resulting kernel binary will not run on other 202 types of ia64 systems. If you have an SGI Altix system, it's safe 203 to select this option. If in doubt, select ia64 generic support 204 instead. 205 206config IA64_SGI_UV 207 bool "SGI-UV" 208 select NUMA 209 select ACPI_NUMA 210 select DMA_DIRECT_OPS 211 select SWIOTLB 212 help 213 Selecting this option will optimize the kernel for use on UV based 214 systems, but the resulting kernel binary will not run on other 215 types of ia64 systems. If you have an SGI UV system, it's safe 216 to select this option. If in doubt, select ia64 generic support 217 instead. 218 219config IA64_HP_SIM 220 bool "Ski-simulator" 221 select DMA_DIRECT_OPS 222 select SWIOTLB 223 depends on !PM 224 225endchoice 226 227choice 228 prompt "Processor type" 229 default ITANIUM 230 231config ITANIUM 232 bool "Itanium" 233 help 234 Select your IA-64 processor type. The default is Itanium. 235 This choice is safe for all IA-64 systems, but may not perform 236 optimally on systems with, say, Itanium 2 or newer processors. 237 238config MCKINLEY 239 bool "Itanium 2" 240 help 241 Select this to configure for an Itanium 2 (McKinley) processor. 242 243endchoice 244 245choice 246 prompt "Kernel page size" 247 default IA64_PAGE_SIZE_16KB 248 249config IA64_PAGE_SIZE_4KB 250 bool "4KB" 251 help 252 This lets you select the page size of the kernel. For best IA-64 253 performance, a page size of 8KB or 16KB is recommended. For best 254 IA-32 compatibility, a page size of 4KB should be selected (the vast 255 majority of IA-32 binaries work perfectly fine with a larger page 256 size). For Itanium 2 or newer systems, a page size of 64KB can also 257 be selected. 258 259 4KB For best IA-32 compatibility 260 8KB For best IA-64 performance 261 16KB For best IA-64 performance 262 64KB Requires Itanium 2 or newer processor. 263 264 If you don't know what to do, choose 16KB. 265 266config IA64_PAGE_SIZE_8KB 267 bool "8KB" 268 269config IA64_PAGE_SIZE_16KB 270 bool "16KB" 271 272config IA64_PAGE_SIZE_64KB 273 depends on !ITANIUM 274 bool "64KB" 275 276endchoice 277 278if IA64_HP_SIM 279config HZ 280 default 32 281endif 282 283if !IA64_HP_SIM 284source kernel/Kconfig.hz 285endif 286 287config IA64_BRL_EMU 288 bool 289 depends on ITANIUM 290 default y 291 292# align cache-sensitive data to 128 bytes 293config IA64_L1_CACHE_SHIFT 294 int 295 default "7" if MCKINLEY 296 default "6" if ITANIUM 297 298config IA64_CYCLONE 299 bool "Cyclone (EXA) Time Source support" 300 help 301 Say Y here to enable support for IBM EXA Cyclone time source. 302 If you're unsure, answer N. 303 304config IOSAPIC 305 bool 306 depends on !IA64_HP_SIM 307 default y 308 309config FORCE_MAX_ZONEORDER 310 int "MAX_ORDER (11 - 17)" if !HUGETLB_PAGE 311 range 11 17 if !HUGETLB_PAGE 312 default "17" if HUGETLB_PAGE 313 default "11" 314 315config SMP 316 bool "Symmetric multi-processing support" 317 help 318 This enables support for systems with more than one CPU. If you have 319 a system with only one CPU, say N. If you have a system with more 320 than one CPU, say Y. 321 322 If you say N here, the kernel will run on single and multiprocessor 323 systems, but will use only one CPU of a multiprocessor system. If 324 you say Y here, the kernel will run on many, but not all, 325 single processor systems. On a single processor system, the kernel 326 will run faster if you say N here. 327 328 See also the SMP-HOWTO available at 329 <http://www.tldp.org/docs.html#howto>. 330 331 If you don't know what to do here, say N. 332 333config NR_CPUS 334 int "Maximum number of CPUs (2-4096)" 335 range 2 4096 336 depends on SMP 337 default "4096" 338 help 339 You should set this to the number of CPUs in your system, but 340 keep in mind that a kernel compiled for, e.g., 2 CPUs will boot but 341 only use 2 CPUs on a >2 CPU system. Setting this to a value larger 342 than 64 will cause the use of a CPU mask array, causing a small 343 performance hit. 344 345config HOTPLUG_CPU 346 bool "Support for hot-pluggable CPUs" 347 depends on SMP 348 default n 349 ---help--- 350 Say Y here to experiment with turning CPUs off and on. CPUs 351 can be controlled through /sys/devices/system/cpu/cpu#. 352 Say N if you want to disable CPU hotplug. 353 354config ARCH_ENABLE_MEMORY_HOTPLUG 355 def_bool y 356 357config ARCH_ENABLE_MEMORY_HOTREMOVE 358 def_bool y 359 360config SCHED_SMT 361 bool "SMT scheduler support" 362 depends on SMP 363 help 364 Improves the CPU scheduler's decision making when dealing with 365 Intel IA64 chips with MultiThreading at a cost of slightly increased 366 overhead in some places. If unsure say N here. 367 368config PERMIT_BSP_REMOVE 369 bool "Support removal of Bootstrap Processor" 370 depends on HOTPLUG_CPU 371 default n 372 ---help--- 373 Say Y here if your platform SAL will support removal of BSP with HOTPLUG_CPU 374 support. 375 376config FORCE_CPEI_RETARGET 377 bool "Force assumption that CPEI can be re-targeted" 378 depends on PERMIT_BSP_REMOVE 379 default n 380 ---help--- 381 Say Y if you need to force the assumption that CPEI can be re-targeted to 382 any cpu in the system. This hint is available via ACPI 3.0 specifications. 383 Tiger4 systems are capable of re-directing CPEI to any CPU other than BSP. 384 This option it useful to enable this feature on older BIOS's as well. 385 You can also enable this by using boot command line option force_cpei=1. 386 387source "kernel/Kconfig.preempt" 388 389source "mm/Kconfig" 390 391config ARCH_SELECT_MEMORY_MODEL 392 def_bool y 393 394config ARCH_DISCONTIGMEM_ENABLE 395 def_bool y 396 help 397 Say Y to support efficient handling of discontiguous physical memory, 398 for architectures which are either NUMA (Non-Uniform Memory Access) 399 or have huge holes in the physical address space for other reasons. 400 See <file:Documentation/vm/numa> for more. 401 402config ARCH_FLATMEM_ENABLE 403 def_bool y 404 405config ARCH_SPARSEMEM_ENABLE 406 def_bool y 407 depends on ARCH_DISCONTIGMEM_ENABLE 408 select SPARSEMEM_VMEMMAP_ENABLE 409 410config ARCH_DISCONTIGMEM_DEFAULT 411 def_bool y if (IA64_SGI_SN2 || IA64_GENERIC || IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB) 412 depends on ARCH_DISCONTIGMEM_ENABLE 413 414config NUMA 415 bool "NUMA support" 416 depends on !IA64_HP_SIM && !FLATMEM 417 default y if IA64_SGI_SN2 418 select ACPI_NUMA if ACPI 419 help 420 Say Y to compile the kernel to support NUMA (Non-Uniform Memory 421 Access). This option is for configuring high-end multiprocessor 422 server systems. If in doubt, say N. 423 424config NODES_SHIFT 425 int "Max num nodes shift(3-10)" 426 range 3 10 427 default "10" 428 depends on NEED_MULTIPLE_NODES 429 help 430 This option specifies the maximum number of nodes in your SSI system. 431 MAX_NUMNODES will be 2^(This value). 432 If in doubt, use the default. 433 434# VIRTUAL_MEM_MAP and FLAT_NODE_MEM_MAP are functionally equivalent. 435# VIRTUAL_MEM_MAP has been retained for historical reasons. 436config VIRTUAL_MEM_MAP 437 bool "Virtual mem map" 438 depends on !SPARSEMEM 439 default y if !IA64_HP_SIM 440 help 441 Say Y to compile the kernel with support for a virtual mem map. 442 This code also only takes effect if a memory hole of greater than 443 1 Gb is found during boot. You must turn this option on if you 444 require the DISCONTIGMEM option for your machine. If you are 445 unsure, say Y. 446 447config HOLES_IN_ZONE 448 bool 449 default y if VIRTUAL_MEM_MAP 450 451config HAVE_ARCH_EARLY_PFN_TO_NID 452 def_bool NUMA && SPARSEMEM 453 454config HAVE_ARCH_NODEDATA_EXTENSION 455 def_bool y 456 depends on NUMA 457 458config USE_PERCPU_NUMA_NODE_ID 459 def_bool y 460 depends on NUMA 461 462config HAVE_MEMORYLESS_NODES 463 def_bool NUMA 464 465config ARCH_PROC_KCORE_TEXT 466 def_bool y 467 depends on PROC_KCORE 468 469config IA64_MCA_RECOVERY 470 tristate "MCA recovery from errors other than TLB." 471 472config PERFMON 473 bool "Performance monitor support" 474 help 475 Selects whether support for the IA-64 performance monitor hardware 476 is included in the kernel. This makes some kernel data-structures a 477 little bigger and slows down execution a bit, but it is generally 478 a good idea to turn this on. If you're unsure, say Y. 479 480config IA64_PALINFO 481 tristate "/proc/pal support" 482 help 483 If you say Y here, you are able to get PAL (Processor Abstraction 484 Layer) information in /proc/pal. This contains useful information 485 about the processors in your systems, such as cache and TLB sizes 486 and the PAL firmware version in use. 487 488 To use this option, you have to ensure that the "/proc file system 489 support" (CONFIG_PROC_FS) is enabled, too. 490 491config IA64_MC_ERR_INJECT 492 tristate "MC error injection support" 493 help 494 Adds support for MC error injection. If enabled, the kernel 495 will provide a sysfs interface for user applications to 496 call MC error injection PAL procedures to inject various errors. 497 This is a useful tool for MCA testing. 498 499 If you're unsure, do not select this option. 500 501config SGI_SN 502 def_bool y if (IA64_SGI_SN2 || IA64_GENERIC) 503 504config IA64_ESI 505 bool "ESI (Extensible SAL Interface) support" 506 help 507 If you say Y here, support is built into the kernel to 508 make ESI calls. ESI calls are used to support vendor-specific 509 firmware extensions, such as the ability to inject memory-errors 510 for test-purposes. If you're unsure, say N. 511 512config IA64_HP_AML_NFW 513 bool "Support ACPI AML calls to native firmware" 514 help 515 This driver installs a global ACPI Operation Region handler for 516 region 0xA1. AML methods can use this OpRegion to call arbitrary 517 native firmware functions. The driver installs the OpRegion 518 handler if there is an HPQ5001 device or if the user supplies 519 the "force" module parameter, e.g., with the "aml_nfw.force" 520 kernel command line option. 521 522source "drivers/sn/Kconfig" 523 524config KEXEC 525 bool "kexec system call" 526 depends on !IA64_HP_SIM && (!SMP || HOTPLUG_CPU) 527 select KEXEC_CORE 528 help 529 kexec is a system call that implements the ability to shutdown your 530 current kernel, and to start another kernel. It is like a reboot 531 but it is independent of the system firmware. And like a reboot 532 you can start any kernel with it, not just Linux. 533 534 The name comes from the similarity to the exec system call. 535 536 It is an ongoing process to be certain the hardware in a machine 537 is properly shutdown, so do not be surprised if this code does not 538 initially work for you. As of this writing the exact hardware 539 interface is strongly in flux, so no good recommendation can be 540 made. 541 542config CRASH_DUMP 543 bool "kernel crash dumps" 544 depends on IA64_MCA_RECOVERY && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU) 545 help 546 Generate crash dump after being started by kexec. 547 548source "drivers/firmware/Kconfig" 549 550source "fs/Kconfig.binfmt" 551 552endmenu 553 554menu "Power management and ACPI options" 555 556source "kernel/power/Kconfig" 557 558source "drivers/acpi/Kconfig" 559 560if PM 561menu "CPU Frequency scaling" 562source "drivers/cpufreq/Kconfig" 563endmenu 564endif 565 566endmenu 567 568if !IA64_HP_SIM 569 570menu "Bus options (PCI, PCMCIA)" 571 572config PCI 573 bool "PCI support" 574 help 575 Real IA-64 machines all have PCI/PCI-X/PCI Express busses. Say Y 576 here unless you are using a simulator without PCI support. 577 578config PCI_DOMAINS 579 def_bool PCI 580 581config PCI_SYSCALL 582 def_bool PCI 583 584source "drivers/pci/Kconfig" 585 586source "drivers/pcmcia/Kconfig" 587 588endmenu 589 590endif 591 592source "net/Kconfig" 593 594source "drivers/Kconfig" 595 596source "arch/ia64/hp/sim/Kconfig" 597 598config MSPEC 599 tristate "Memory special operations driver" 600 depends on IA64 601 select IA64_UNCACHED_ALLOCATOR 602 help 603 If you have an ia64 and you want to enable memory special 604 operations support (formerly known as fetchop), say Y here, 605 otherwise say N. 606 607source "fs/Kconfig" 608 609source "arch/ia64/Kconfig.debug" 610 611source "security/Kconfig" 612 613source "crypto/Kconfig" 614 615source "lib/Kconfig" 616 617config IOMMU_HELPER 618 def_bool (IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB || IA64_GENERIC || SWIOTLB) 619