Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | # |
| 2 | # For a description of the syntax of this configuration file, |
| 3 | # see Documentation/kbuild/kconfig-language.txt. |
| 4 | # |
| 5 | |
| 6 | mainmenu "IA-64 Linux Kernel Configuration" |
| 7 | |
| 8 | source "init/Kconfig" |
| 9 | |
| 10 | menu "Processor type and features" |
| 11 | |
| 12 | config IA64 |
| 13 | bool |
| 14 | default y |
| 15 | help |
| 16 | The Itanium Processor Family is Intel's 64-bit successor to |
| 17 | the 32-bit X86 line. The IA-64 Linux project has a home |
| 18 | page at <http://www.linuxia64.org/> and a mailing list at |
| 19 | <linux-ia64@vger.kernel.org>. |
| 20 | |
| 21 | config 64BIT |
| 22 | bool |
| 23 | default y |
| 24 | |
| 25 | config MMU |
| 26 | bool |
| 27 | default y |
| 28 | |
| 29 | config RWSEM_XCHGADD_ALGORITHM |
| 30 | bool |
| 31 | default y |
| 32 | |
| 33 | config GENERIC_CALIBRATE_DELAY |
| 34 | bool |
| 35 | default y |
| 36 | |
| 37 | config TIME_INTERPOLATION |
| 38 | bool |
| 39 | default y |
| 40 | |
| 41 | config EFI |
| 42 | bool |
| 43 | default y |
| 44 | |
| 45 | config GENERIC_IOMAP |
| 46 | bool |
| 47 | default y |
| 48 | |
Anton Blanchard | 7d12e52 | 2005-05-05 16:15:11 -0700 | [diff] [blame] | 49 | config SCHED_NO_NO_OMIT_FRAME_POINTER |
| 50 | bool |
| 51 | default y |
| 52 | |
Jes Sorensen | f14f75b | 2005-06-21 17:15:02 -0700 | [diff] [blame] | 53 | config IA64_UNCACHED_ALLOCATOR |
| 54 | bool |
| 55 | select GENERIC_ALLOCATOR |
| 56 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 57 | choice |
| 58 | prompt "System type" |
| 59 | default IA64_GENERIC |
| 60 | |
| 61 | config IA64_GENERIC |
| 62 | bool "generic" |
| 63 | select NUMA |
| 64 | select ACPI_NUMA |
| 65 | select VIRTUAL_MEM_MAP |
| 66 | select DISCONTIGMEM |
| 67 | help |
| 68 | This selects the system type of your hardware. A "generic" kernel |
| 69 | will run on any supported IA-64 system. However, if you configure |
| 70 | a kernel for your specific system, it will be faster and smaller. |
| 71 | |
| 72 | generic For any supported IA-64 system |
| 73 | DIG-compliant For DIG ("Developer's Interface Guide") compliant systems |
| 74 | HP-zx1/sx1000 For HP systems |
| 75 | HP-zx1/sx1000+swiotlb For HP systems with (broken) DMA-constrained devices. |
| 76 | SGI-SN2 For SGI Altix systems |
| 77 | Ski-simulator For the HP simulator <http://www.hpl.hp.com/research/linux/ski/> |
| 78 | |
| 79 | If you don't know what to do, choose "generic". |
| 80 | |
| 81 | config IA64_DIG |
| 82 | bool "DIG-compliant" |
| 83 | |
| 84 | config IA64_HP_ZX1 |
| 85 | bool "HP-zx1/sx1000" |
| 86 | help |
| 87 | Build a kernel that runs on HP zx1 and sx1000 systems. This adds |
| 88 | support for the HP I/O MMU. |
| 89 | |
| 90 | config IA64_HP_ZX1_SWIOTLB |
| 91 | bool "HP-zx1/sx1000 with software I/O TLB" |
| 92 | help |
| 93 | Build a kernel that runs on HP zx1 and sx1000 systems even when they |
| 94 | have broken PCI devices which cannot DMA to full 32 bits. Apart |
| 95 | from support for the HP I/O MMU, this includes support for the software |
| 96 | I/O TLB, which allows supporting the broken devices at the expense of |
| 97 | wasting some kernel memory (about 2MB by default). |
| 98 | |
| 99 | config IA64_SGI_SN2 |
| 100 | bool "SGI-SN2" |
| 101 | help |
| 102 | Selecting this option will optimize the kernel for use on sn2 based |
| 103 | systems, but the resulting kernel binary will not run on other |
| 104 | types of ia64 systems. If you have an SGI Altix system, it's safe |
| 105 | to select this option. If in doubt, select ia64 generic support |
| 106 | instead. |
| 107 | |
| 108 | config IA64_HP_SIM |
| 109 | bool "Ski-simulator" |
| 110 | |
| 111 | endchoice |
| 112 | |
| 113 | choice |
| 114 | prompt "Processor type" |
| 115 | default ITANIUM |
| 116 | |
| 117 | config ITANIUM |
| 118 | bool "Itanium" |
| 119 | help |
| 120 | Select your IA-64 processor type. The default is Itanium. |
| 121 | This choice is safe for all IA-64 systems, but may not perform |
| 122 | optimally on systems with, say, Itanium 2 or newer processors. |
| 123 | |
| 124 | config MCKINLEY |
| 125 | bool "Itanium 2" |
| 126 | help |
| 127 | Select this to configure for an Itanium 2 (McKinley) processor. |
| 128 | |
| 129 | endchoice |
| 130 | |
| 131 | choice |
| 132 | prompt "Kernel page size" |
| 133 | default IA64_PAGE_SIZE_16KB |
| 134 | |
| 135 | config IA64_PAGE_SIZE_4KB |
| 136 | bool "4KB" |
| 137 | help |
| 138 | This lets you select the page size of the kernel. For best IA-64 |
| 139 | performance, a page size of 8KB or 16KB is recommended. For best |
| 140 | IA-32 compatibility, a page size of 4KB should be selected (the vast |
| 141 | majority of IA-32 binaries work perfectly fine with a larger page |
| 142 | size). For Itanium 2 or newer systems, a page size of 64KB can also |
| 143 | be selected. |
| 144 | |
| 145 | 4KB For best IA-32 compatibility |
| 146 | 8KB For best IA-64 performance |
| 147 | 16KB For best IA-64 performance |
| 148 | 64KB Requires Itanium 2 or newer processor. |
| 149 | |
| 150 | If you don't know what to do, choose 16KB. |
| 151 | |
| 152 | config IA64_PAGE_SIZE_8KB |
| 153 | bool "8KB" |
| 154 | |
| 155 | config IA64_PAGE_SIZE_16KB |
| 156 | bool "16KB" |
| 157 | |
| 158 | config IA64_PAGE_SIZE_64KB |
| 159 | depends on !ITANIUM |
| 160 | bool "64KB" |
| 161 | |
| 162 | endchoice |
| 163 | |
| 164 | config IA64_BRL_EMU |
| 165 | bool |
| 166 | depends on ITANIUM |
| 167 | default y |
| 168 | |
| 169 | # align cache-sensitive data to 128 bytes |
| 170 | config IA64_L1_CACHE_SHIFT |
| 171 | int |
| 172 | default "7" if MCKINLEY |
| 173 | default "6" if ITANIUM |
| 174 | |
| 175 | # align cache-sensitive data to 64 bytes |
| 176 | config NUMA |
| 177 | bool "NUMA support" |
| 178 | depends on !IA64_HP_SIM |
| 179 | default y if IA64_SGI_SN2 |
| 180 | select ACPI_NUMA |
| 181 | help |
| 182 | Say Y to compile the kernel to support NUMA (Non-Uniform Memory |
| 183 | Access). This option is for configuring high-end multiprocessor |
| 184 | server systems. If in doubt, say N. |
| 185 | |
| 186 | config VIRTUAL_MEM_MAP |
| 187 | bool "Virtual mem map" |
| 188 | default y if !IA64_HP_SIM |
| 189 | help |
| 190 | Say Y to compile the kernel with support for a virtual mem map. |
| 191 | This code also only takes effect if a memory hole of greater than |
| 192 | 1 Gb is found during boot. You must turn this option on if you |
| 193 | require the DISCONTIGMEM option for your machine. If you are |
| 194 | unsure, say Y. |
| 195 | |
| 196 | config HOLES_IN_ZONE |
| 197 | bool |
| 198 | default y if VIRTUAL_MEM_MAP |
| 199 | |
Dave Hansen | 3f22ab2 | 2005-06-23 00:07:43 -0700 | [diff] [blame^] | 200 | config ARCH_DISCONTIGMEM_ENABLE |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 201 | bool "Discontiguous memory support" |
| 202 | depends on (IA64_DIG || IA64_SGI_SN2 || IA64_GENERIC || IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB) && NUMA && VIRTUAL_MEM_MAP |
| 203 | default y if (IA64_SGI_SN2 || IA64_GENERIC) && NUMA |
| 204 | help |
| 205 | Say Y to support efficient handling of discontiguous physical memory, |
| 206 | for architectures which are either NUMA (Non-Uniform Memory Access) |
| 207 | or have huge holes in the physical address space for other reasons. |
| 208 | See <file:Documentation/vm/numa> for more. |
| 209 | |
| 210 | config IA64_CYCLONE |
| 211 | bool "Cyclone (EXA) Time Source support" |
| 212 | help |
| 213 | Say Y here to enable support for IBM EXA Cyclone time source. |
| 214 | If you're unsure, answer N. |
| 215 | |
| 216 | config IOSAPIC |
| 217 | bool |
| 218 | depends on !IA64_HP_SIM |
| 219 | default y |
| 220 | |
| 221 | config IA64_SGI_SN_SIM |
| 222 | bool "SGI Medusa Simulator Support" |
Greg Edwards | a35f1e0 | 2005-06-21 11:30:00 -0700 | [diff] [blame] | 223 | depends on IA64_SGI_SN2 || IA64_GENERIC |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 224 | help |
| 225 | If you are compiling a kernel that will run under SGI's IA-64 |
| 226 | simulator (Medusa) then say Y, otherwise say N. |
| 227 | |
Dean Nelson | b0d82bd | 2005-03-23 19:46:00 -0700 | [diff] [blame] | 228 | config IA64_SGI_SN_XP |
| 229 | tristate "Support communication between SGI SSIs" |
Jes Sorensen | 65ed0b3 | 2005-06-21 17:15:03 -0700 | [diff] [blame] | 230 | select IA64_UNCACHED_ALLOCATOR |
Dean Nelson | b0d82bd | 2005-03-23 19:46:00 -0700 | [diff] [blame] | 231 | help |
| 232 | An SGI machine can be divided into multiple Single System |
| 233 | Images which act independently of each other and have |
| 234 | hardware based memory protection from the others. Enabling |
| 235 | this feature will allow for direct communication between SSIs |
| 236 | based on a network adapter and DMA messaging. |
| 237 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 238 | config FORCE_MAX_ZONEORDER |
| 239 | int |
| 240 | default "18" |
| 241 | |
| 242 | config SMP |
| 243 | bool "Symmetric multi-processing support" |
| 244 | help |
| 245 | This enables support for systems with more than one CPU. If you have |
| 246 | a system with only one CPU, say N. If you have a system with more |
| 247 | than one CPU, say Y. |
| 248 | |
| 249 | If you say N here, the kernel will run on single and multiprocessor |
| 250 | systems, but will use only one CPU of a multiprocessor system. If |
| 251 | you say Y here, the kernel will run on many, but not all, |
| 252 | single processor systems. On a single processor system, the kernel |
| 253 | will run faster if you say N here. |
| 254 | |
| 255 | See also the <file:Documentation/smp.txt> and the SMP-HOWTO |
| 256 | available at <http://www.tldp.org/docs.html#howto>. |
| 257 | |
| 258 | If you don't know what to do here, say N. |
| 259 | |
| 260 | config NR_CPUS |
| 261 | int "Maximum number of CPUs (2-512)" |
| 262 | range 2 512 |
| 263 | depends on SMP |
| 264 | default "64" |
| 265 | help |
| 266 | You should set this to the number of CPUs in your system, but |
| 267 | keep in mind that a kernel compiled for, e.g., 2 CPUs will boot but |
| 268 | only use 2 CPUs on a >2 CPU system. Setting this to a value larger |
| 269 | than 64 will cause the use of a CPU mask array, causing a small |
| 270 | performance hit. |
| 271 | |
| 272 | config HOTPLUG_CPU |
| 273 | bool "Support for hot-pluggable CPUs (EXPERIMENTAL)" |
| 274 | depends on SMP && EXPERIMENTAL |
| 275 | select HOTPLUG |
| 276 | default n |
| 277 | ---help--- |
| 278 | Say Y here to experiment with turning CPUs off and on. CPUs |
| 279 | can be controlled through /sys/devices/system/cpu/cpu#. |
| 280 | Say N if you want to disable CPU hotplug. |
| 281 | |
Suresh Siddha | 7a9bdd8 | 2005-04-05 18:05:00 -0700 | [diff] [blame] | 282 | config SCHED_SMT |
| 283 | bool "SMT scheduler support" |
| 284 | depends on SMP |
| 285 | default off |
| 286 | help |
| 287 | Improves the CPU scheduler's decision making when dealing with |
| 288 | Intel IA64 chips with MultiThreading at a cost of slightly increased |
| 289 | overhead in some places. If unsure say N here. |
| 290 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 291 | config PREEMPT |
| 292 | bool "Preemptible Kernel" |
| 293 | help |
| 294 | This option reduces the latency of the kernel when reacting to |
| 295 | real-time or interactive events by allowing a low priority process to |
| 296 | be preempted even if it is in kernel mode executing a system call. |
| 297 | This allows applications to run more reliably even when the system is |
| 298 | under load. |
| 299 | |
| 300 | Say Y here if you are building a kernel for a desktop, embedded |
| 301 | or real-time system. Say N if you are unsure. |
| 302 | |
Dave Hansen | 3f22ab2 | 2005-06-23 00:07:43 -0700 | [diff] [blame^] | 303 | source "mm/Kconfig" |
| 304 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 305 | config HAVE_DEC_LOCK |
| 306 | bool |
| 307 | depends on (SMP || PREEMPT) |
| 308 | default y |
| 309 | |
| 310 | config IA32_SUPPORT |
| 311 | bool "Support for Linux/x86 binaries" |
| 312 | help |
| 313 | IA-64 processors can execute IA-32 (X86) instructions. By |
| 314 | saying Y here, the kernel will include IA-32 system call |
| 315 | emulation support which makes it possible to transparently |
| 316 | run IA-32 Linux binaries on an IA-64 Linux system. |
| 317 | If in doubt, say Y. |
| 318 | |
| 319 | config COMPAT |
| 320 | bool |
| 321 | depends on IA32_SUPPORT |
| 322 | default y |
| 323 | |
| 324 | config IA64_MCA_RECOVERY |
| 325 | tristate "MCA recovery from errors other than TLB." |
| 326 | |
| 327 | config PERFMON |
| 328 | bool "Performance monitor support" |
| 329 | help |
| 330 | Selects whether support for the IA-64 performance monitor hardware |
| 331 | is included in the kernel. This makes some kernel data-structures a |
| 332 | little bigger and slows down execution a bit, but it is generally |
| 333 | a good idea to turn this on. If you're unsure, say Y. |
| 334 | |
| 335 | config IA64_PALINFO |
| 336 | tristate "/proc/pal support" |
| 337 | help |
| 338 | If you say Y here, you are able to get PAL (Processor Abstraction |
| 339 | Layer) information in /proc/pal. This contains useful information |
| 340 | about the processors in your systems, such as cache and TLB sizes |
| 341 | and the PAL firmware version in use. |
| 342 | |
| 343 | To use this option, you have to ensure that the "/proc file system |
| 344 | support" (CONFIG_PROC_FS) is enabled, too. |
| 345 | |
| 346 | config ACPI_DEALLOCATE_IRQ |
| 347 | bool |
| 348 | depends on IOSAPIC && EXPERIMENTAL |
| 349 | default y |
| 350 | |
| 351 | source "drivers/firmware/Kconfig" |
| 352 | |
| 353 | source "fs/Kconfig.binfmt" |
| 354 | |
| 355 | endmenu |
| 356 | |
| 357 | menu "Power management and ACPI" |
| 358 | |
| 359 | config PM |
| 360 | bool "Power Management support" |
Jesse Barnes | 605036c | 2005-04-25 13:31:04 -0700 | [diff] [blame] | 361 | depends on !IA64_HP_SIM |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 362 | default y |
| 363 | help |
| 364 | "Power Management" means that parts of your computer are shut |
| 365 | off or put into a power conserving "sleep" mode if they are not |
| 366 | being used. There are two competing standards for doing this: APM |
| 367 | and ACPI. If you want to use either one, say Y here and then also |
| 368 | to the requisite support below. |
| 369 | |
| 370 | Power Management is most important for battery powered laptop |
| 371 | computers; if you have a laptop, check out the Linux Laptop home |
| 372 | page on the WWW at <http://www.linux-on-laptops.com/> and the |
| 373 | Battery Powered Linux mini-HOWTO, available from |
| 374 | <http://www.tldp.org/docs.html#howto>. |
| 375 | |
| 376 | Note that, even if you say N here, Linux on the x86 architecture |
| 377 | will issue the hlt instruction if nothing is to be done, thereby |
| 378 | sending the processor to sleep and saving power. |
| 379 | |
| 380 | config ACPI |
| 381 | bool |
| 382 | depends on !IA64_HP_SIM |
| 383 | default y |
| 384 | |
| 385 | if !IA64_HP_SIM |
| 386 | |
| 387 | source "drivers/acpi/Kconfig" |
| 388 | |
| 389 | endif |
| 390 | |
| 391 | endmenu |
| 392 | |
| 393 | if !IA64_HP_SIM |
| 394 | |
| 395 | menu "Bus options (PCI, PCMCIA)" |
| 396 | |
| 397 | config PCI |
| 398 | bool "PCI support" |
| 399 | help |
| 400 | Find out whether you have a PCI motherboard. PCI is the name of a |
| 401 | bus system, i.e. the way the CPU talks to the other stuff inside |
| 402 | your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or |
| 403 | VESA. If you have PCI, say Y, otherwise N. |
| 404 | |
| 405 | The PCI-HOWTO, available from |
| 406 | <http://www.tldp.org/docs.html#howto>, contains valuable |
| 407 | information about which PCI hardware does work under Linux and which |
| 408 | doesn't. |
| 409 | |
| 410 | config PCI_DOMAINS |
| 411 | bool |
| 412 | default PCI |
| 413 | |
| 414 | source "drivers/pci/Kconfig" |
| 415 | |
| 416 | source "drivers/pci/hotplug/Kconfig" |
| 417 | |
| 418 | source "drivers/pcmcia/Kconfig" |
| 419 | |
| 420 | endmenu |
| 421 | |
| 422 | endif |
| 423 | |
| 424 | source "drivers/Kconfig" |
| 425 | |
| 426 | source "fs/Kconfig" |
| 427 | |
| 428 | source "lib/Kconfig" |
| 429 | |
| 430 | # |
| 431 | # Use the generic interrupt handling code in kernel/irq/: |
| 432 | # |
| 433 | config GENERIC_HARDIRQS |
| 434 | bool |
| 435 | default y |
| 436 | |
| 437 | config GENERIC_IRQ_PROBE |
| 438 | bool |
| 439 | default y |
| 440 | |
| 441 | source "arch/ia64/hp/sim/Kconfig" |
| 442 | |
| 443 | source "arch/ia64/oprofile/Kconfig" |
| 444 | |
| 445 | source "arch/ia64/Kconfig.debug" |
| 446 | |
| 447 | source "security/Kconfig" |
| 448 | |
| 449 | source "crypto/Kconfig" |