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 7menu "Processor type and features" 8 9config IA64 10 bool 11 select ARCH_HAS_DMA_MARK_CLEAN 12 select ARCH_MIGHT_HAVE_PC_PARPORT 13 select ARCH_MIGHT_HAVE_PC_SERIO 14 select ACPI 15 select ACPI_NUMA if NUMA 16 select ARCH_ENABLE_MEMORY_HOTPLUG 17 select ARCH_ENABLE_MEMORY_HOTREMOVE 18 select ARCH_SUPPORTS_ACPI 19 select ACPI_SYSTEM_POWER_STATES_SUPPORT if ACPI 20 select ARCH_MIGHT_HAVE_ACPI_PDC if ACPI 21 select FORCE_PCI 22 select PCI_DOMAINS if PCI 23 select PCI_MSI 24 select PCI_SYSCALL if PCI 25 select HAVE_ASM_MODVERSIONS 26 select HAVE_UNSTABLE_SCHED_CLOCK 27 select HAVE_EXIT_THREAD 28 select HAVE_IDE 29 select HAVE_KPROBES 30 select HAVE_KRETPROBES 31 select HAVE_FTRACE_MCOUNT_RECORD 32 select HAVE_DYNAMIC_FTRACE if (!ITANIUM) 33 select HAVE_FUNCTION_TRACER 34 select TTY 35 select HAVE_ARCH_TRACEHOOK 36 select HAVE_VIRT_CPU_ACCOUNTING 37 select HUGETLB_PAGE_SIZE_VARIABLE if HUGETLB_PAGE 38 select VIRT_TO_BUS 39 select GENERIC_IRQ_PROBE 40 select GENERIC_PENDING_IRQ if SMP 41 select GENERIC_IRQ_SHOW 42 select GENERIC_IRQ_LEGACY 43 select ARCH_HAVE_NMI_SAFE_CMPXCHG 44 select GENERIC_IOMAP 45 select GENERIC_SMP_IDLE_THREAD 46 select ARCH_TASK_STRUCT_ON_STACK 47 select ARCH_TASK_STRUCT_ALLOCATOR 48 select ARCH_THREAD_STACK_ALLOCATOR 49 select ARCH_CLOCKSOURCE_DATA 50 select GENERIC_TIME_VSYSCALL 51 select LEGACY_TIMER_TICK 52 select SWIOTLB 53 select SYSCTL_ARCH_UNALIGN_NO_WARN 54 select HAVE_MOD_ARCH_SPECIFIC 55 select MODULES_USE_ELF_RELA 56 select ARCH_USE_CMPXCHG_LOCKREF 57 select HAVE_ARCH_AUDITSYSCALL 58 select NEED_DMA_MAP_STATE 59 select NEED_SG_DMA_LENGTH 60 select NUMA if !FLATMEM 61 select PCI_MSI_ARCH_FALLBACKS if PCI_MSI 62 select SET_FS 63 default y 64 help 65 The Itanium Processor Family is Intel's 64-bit successor to 66 the 32-bit X86 line. The IA-64 Linux project has a home 67 page at <http://www.linuxia64.org/> and a mailing list at 68 <linux-ia64@vger.kernel.org>. 69 70config 64BIT 71 bool 72 select ATA_NONSTANDARD if ATA 73 default y 74 75config ZONE_DMA32 76 def_bool y 77 78config MMU 79 bool 80 default y 81 82config STACKTRACE_SUPPORT 83 def_bool y 84 85config GENERIC_LOCKBREAK 86 def_bool n 87 88config GENERIC_CALIBRATE_DELAY 89 bool 90 default y 91 92config HAVE_SETUP_PER_CPU_AREA 93 def_bool y 94 95config DMI 96 bool 97 default y 98 select DMI_SCAN_MACHINE_NON_EFI_FALLBACK 99 100config EFI 101 bool 102 select UCS2_STRING 103 default y 104 105config SCHED_OMIT_FRAME_POINTER 106 bool 107 default y 108 109config IA64_UNCACHED_ALLOCATOR 110 bool 111 select GENERIC_ALLOCATOR 112 113config ARCH_USES_PG_UNCACHED 114 def_bool y 115 depends on IA64_UNCACHED_ALLOCATOR 116 117config AUDIT_ARCH 118 bool 119 default y 120 121choice 122 prompt "Processor type" 123 default ITANIUM 124 125config ITANIUM 126 bool "Itanium" 127 help 128 Select your IA-64 processor type. The default is Itanium. 129 This choice is safe for all IA-64 systems, but may not perform 130 optimally on systems with, say, Itanium 2 or newer processors. 131 132config MCKINLEY 133 bool "Itanium 2" 134 help 135 Select this to configure for an Itanium 2 (McKinley) processor. 136 137endchoice 138 139choice 140 prompt "Kernel page size" 141 default IA64_PAGE_SIZE_16KB 142 143config IA64_PAGE_SIZE_4KB 144 bool "4KB" 145 help 146 This lets you select the page size of the kernel. For best IA-64 147 performance, a page size of 8KB or 16KB is recommended. For best 148 IA-32 compatibility, a page size of 4KB should be selected (the vast 149 majority of IA-32 binaries work perfectly fine with a larger page 150 size). For Itanium 2 or newer systems, a page size of 64KB can also 151 be selected. 152 153 4KB For best IA-32 compatibility 154 8KB For best IA-64 performance 155 16KB For best IA-64 performance 156 64KB Requires Itanium 2 or newer processor. 157 158 If you don't know what to do, choose 16KB. 159 160config IA64_PAGE_SIZE_8KB 161 bool "8KB" 162 163config IA64_PAGE_SIZE_16KB 164 bool "16KB" 165 166config IA64_PAGE_SIZE_64KB 167 depends on !ITANIUM 168 bool "64KB" 169 170endchoice 171 172source "kernel/Kconfig.hz" 173 174config IA64_BRL_EMU 175 bool 176 depends on ITANIUM 177 default y 178 179# align cache-sensitive data to 128 bytes 180config IA64_L1_CACHE_SHIFT 181 int 182 default "7" if MCKINLEY 183 default "6" if ITANIUM 184 185config IA64_SGI_UV 186 bool "SGI-UV support" 187 help 188 Selecting this option will add specific support for running on SGI 189 UV based systems. If you have an SGI UV system or are building a 190 distro kernel, select this option. 191 192config IA64_HP_SBA_IOMMU 193 bool "HP SBA IOMMU support" 194 select DMA_OPS 195 default y 196 help 197 Say Y here to add support for the SBA IOMMU found on HP zx1 and 198 sx1000 systems. If you're unsure, answer Y. 199 200config IA64_CYCLONE 201 bool "Cyclone (EXA) Time Source support" 202 help 203 Say Y here to enable support for IBM EXA Cyclone time source. 204 If you're unsure, answer N. 205 206config FORCE_MAX_ZONEORDER 207 int "MAX_ORDER (11 - 17)" if !HUGETLB_PAGE 208 range 11 17 if !HUGETLB_PAGE 209 default "17" if HUGETLB_PAGE 210 default "11" 211 212config SMP 213 bool "Symmetric multi-processing support" 214 help 215 This enables support for systems with more than one CPU. If you have 216 a system with only one CPU, say N. If you have a system with more 217 than one CPU, say Y. 218 219 If you say N here, the kernel will run on single and multiprocessor 220 systems, but will use only one CPU of a multiprocessor system. If 221 you say Y here, the kernel will run on many, but not all, 222 single processor systems. On a single processor system, the kernel 223 will run faster if you say N here. 224 225 See also the SMP-HOWTO available at 226 <http://www.tldp.org/docs.html#howto>. 227 228 If you don't know what to do here, say N. 229 230config NR_CPUS 231 int "Maximum number of CPUs (2-4096)" 232 range 2 4096 233 depends on SMP 234 default "4096" 235 help 236 You should set this to the number of CPUs in your system, but 237 keep in mind that a kernel compiled for, e.g., 2 CPUs will boot but 238 only use 2 CPUs on a >2 CPU system. Setting this to a value larger 239 than 64 will cause the use of a CPU mask array, causing a small 240 performance hit. 241 242config HOTPLUG_CPU 243 bool "Support for hot-pluggable CPUs" 244 depends on SMP 245 default n 246 help 247 Say Y here to experiment with turning CPUs off and on. CPUs 248 can be controlled through /sys/devices/system/cpu/cpu#. 249 Say N if you want to disable CPU hotplug. 250 251config SCHED_SMT 252 bool "SMT scheduler support" 253 depends on SMP 254 help 255 Improves the CPU scheduler's decision making when dealing with 256 Intel IA64 chips with MultiThreading at a cost of slightly increased 257 overhead in some places. If unsure say N here. 258 259config PERMIT_BSP_REMOVE 260 bool "Support removal of Bootstrap Processor" 261 depends on HOTPLUG_CPU 262 default n 263 help 264 Say Y here if your platform SAL will support removal of BSP with HOTPLUG_CPU 265 support. 266 267config FORCE_CPEI_RETARGET 268 bool "Force assumption that CPEI can be re-targeted" 269 depends on PERMIT_BSP_REMOVE 270 default n 271 help 272 Say Y if you need to force the assumption that CPEI can be re-targeted to 273 any cpu in the system. This hint is available via ACPI 3.0 specifications. 274 Tiger4 systems are capable of re-directing CPEI to any CPU other than BSP. 275 This option it useful to enable this feature on older BIOS's as well. 276 You can also enable this by using boot command line option force_cpei=1. 277 278config ARCH_SELECT_MEMORY_MODEL 279 def_bool y 280 281config ARCH_FLATMEM_ENABLE 282 def_bool y 283 284config ARCH_SPARSEMEM_ENABLE 285 def_bool y 286 select SPARSEMEM_VMEMMAP_ENABLE 287 288config ARCH_SPARSEMEM_DEFAULT 289 def_bool y 290 depends on ARCH_SPARSEMEM_ENABLE 291 292config NUMA 293 bool "NUMA support" 294 depends on !FLATMEM 295 select SMP 296 help 297 Say Y to compile the kernel to support NUMA (Non-Uniform Memory 298 Access). This option is for configuring high-end multiprocessor 299 server systems. If in doubt, say N. 300 301config NODES_SHIFT 302 int "Max num nodes shift(3-10)" 303 range 3 10 304 default "10" 305 depends on NEED_MULTIPLE_NODES 306 help 307 This option specifies the maximum number of nodes in your SSI system. 308 MAX_NUMNODES will be 2^(This value). 309 If in doubt, use the default. 310 311config HOLES_IN_ZONE 312 bool 313 314config HAVE_ARCH_NODEDATA_EXTENSION 315 def_bool y 316 depends on NUMA 317 318config USE_PERCPU_NUMA_NODE_ID 319 def_bool y 320 depends on NUMA 321 322config HAVE_MEMORYLESS_NODES 323 def_bool NUMA 324 325config ARCH_PROC_KCORE_TEXT 326 def_bool y 327 depends on PROC_KCORE 328 329config IA64_MCA_RECOVERY 330 tristate "MCA recovery from errors other than TLB." 331 332config IA64_PALINFO 333 tristate "/proc/pal support" 334 help 335 If you say Y here, you are able to get PAL (Processor Abstraction 336 Layer) information in /proc/pal. This contains useful information 337 about the processors in your systems, such as cache and TLB sizes 338 and the PAL firmware version in use. 339 340 To use this option, you have to ensure that the "/proc file system 341 support" (CONFIG_PROC_FS) is enabled, too. 342 343config IA64_MC_ERR_INJECT 344 tristate "MC error injection support" 345 help 346 Adds support for MC error injection. If enabled, the kernel 347 will provide a sysfs interface for user applications to 348 call MC error injection PAL procedures to inject various errors. 349 This is a useful tool for MCA testing. 350 351 If you're unsure, do not select this option. 352 353config IA64_ESI 354 bool "ESI (Extensible SAL Interface) support" 355 help 356 If you say Y here, support is built into the kernel to 357 make ESI calls. ESI calls are used to support vendor-specific 358 firmware extensions, such as the ability to inject memory-errors 359 for test-purposes. If you're unsure, say N. 360 361config IA64_HP_AML_NFW 362 bool "Support ACPI AML calls to native firmware" 363 help 364 This driver installs a global ACPI Operation Region handler for 365 region 0xA1. AML methods can use this OpRegion to call arbitrary 366 native firmware functions. The driver installs the OpRegion 367 handler if there is an HPQ5001 device or if the user supplies 368 the "force" module parameter, e.g., with the "aml_nfw.force" 369 kernel command line option. 370 371config KEXEC 372 bool "kexec system call" 373 depends on !SMP || HOTPLUG_CPU 374 select KEXEC_CORE 375 help 376 kexec is a system call that implements the ability to shutdown your 377 current kernel, and to start another kernel. It is like a reboot 378 but it is independent of the system firmware. And like a reboot 379 you can start any kernel with it, not just Linux. 380 381 The name comes from the similarity to the exec system call. 382 383 It is an ongoing process to be certain the hardware in a machine 384 is properly shutdown, so do not be surprised if this code does not 385 initially work for you. As of this writing the exact hardware 386 interface is strongly in flux, so no good recommendation can be 387 made. 388 389config CRASH_DUMP 390 bool "kernel crash dumps" 391 depends on IA64_MCA_RECOVERY && (!SMP || HOTPLUG_CPU) 392 help 393 Generate crash dump after being started by kexec. 394 395source "drivers/firmware/Kconfig" 396 397endmenu 398 399menu "Power management and ACPI options" 400 401source "kernel/power/Kconfig" 402 403source "drivers/acpi/Kconfig" 404 405if PM 406menu "CPU Frequency scaling" 407source "drivers/cpufreq/Kconfig" 408endmenu 409endif 410 411endmenu 412 413config MSPEC 414 tristate "Memory special operations driver" 415 depends on IA64 416 select IA64_UNCACHED_ALLOCATOR 417 help 418 If you have an ia64 and you want to enable memory special 419 operations support (formerly known as fetchop), say Y here, 420 otherwise say N. 421