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 | |
Matt Helsley | dc52ddc | 2008-10-18 20:27:21 -0700 | [diff] [blame] | 10 | source "kernel/Kconfig.freezer" |
| 11 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 12 | menu "Processor type and features" |
| 13 | |
| 14 | config IA64 |
| 15 | bool |
Len Brown | 06f87ad | 2007-01-26 00:38:53 -0500 | [diff] [blame] | 16 | select PCI if (!IA64_HP_SIM) |
| 17 | select ACPI if (!IA64_HP_SIM) |
Len Brown | 8140a90 | 2007-03-16 22:00:43 -0400 | [diff] [blame] | 18 | select PM if (!IA64_HP_SIM) |
Dan Williams | f282b97 | 2007-04-18 18:46:20 +1000 | [diff] [blame] | 19 | select ARCH_SUPPORTS_MSI |
Tony Luck | 0773a6c | 2009-01-15 10:29:17 -0800 | [diff] [blame] | 20 | select HAVE_UNSTABLE_SCHED_CLOCK |
Sam Ravnborg | ec7748b | 2008-02-09 10:46:40 +0100 | [diff] [blame] | 21 | select HAVE_IDE |
Mathieu Desnoyers | 42d4b83 | 2008-02-02 15:10:34 -0500 | [diff] [blame] | 22 | select HAVE_OPROFILE |
Mathieu Desnoyers | 3f55009 | 2008-02-02 15:10:35 -0500 | [diff] [blame] | 23 | select HAVE_KPROBES |
Ananth N Mavinakayanahalli | 9edddaa | 2008-03-04 14:28:37 -0800 | [diff] [blame] | 24 | select HAVE_KRETPROBES |
Arthur Kepner | 74bc7ce | 2008-04-29 01:00:30 -0700 | [diff] [blame] | 25 | select HAVE_DMA_ATTRS |
Xiantao Zhang | b693919 | 2008-03-28 14:58:47 +0800 | [diff] [blame] | 26 | select HAVE_KVM |
Shaohua Li | 9690ad0 | 2008-10-01 13:57:14 -0700 | [diff] [blame] | 27 | select HAVE_ARCH_TRACEHOOK |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 28 | default y |
| 29 | help |
| 30 | The Itanium Processor Family is Intel's 64-bit successor to |
| 31 | the 32-bit X86 line. The IA-64 Linux project has a home |
| 32 | page at <http://www.linuxia64.org/> and a mailing list at |
| 33 | <linux-ia64@vger.kernel.org>. |
| 34 | |
| 35 | config 64BIT |
| 36 | bool |
Zhang, Yanmin | 9f271d5 | 2007-02-09 11:29:51 +0800 | [diff] [blame] | 37 | select ATA_NONSTANDARD if ATA |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 38 | default y |
| 39 | |
Christoph Lameter | 66701b1 | 2007-02-10 01:43:09 -0800 | [diff] [blame] | 40 | config ZONE_DMA |
Christoph Lameter | 09ae1f5 | 2007-02-10 01:43:11 -0800 | [diff] [blame] | 41 | def_bool y |
| 42 | depends on !IA64_SGI_SN2 |
Christoph Lameter | 66701b1 | 2007-02-10 01:43:09 -0800 | [diff] [blame] | 43 | |
Christoph Lameter | 2bd62a4 | 2007-05-10 22:42:53 -0700 | [diff] [blame] | 44 | config QUICKLIST |
| 45 | bool |
| 46 | default y |
| 47 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 48 | config MMU |
| 49 | bool |
| 50 | default y |
| 51 | |
John W. Linville | 6c654b5 | 2005-09-29 14:42:42 -0700 | [diff] [blame] | 52 | config SWIOTLB |
| 53 | bool |
John W. Linville | 6c654b5 | 2005-09-29 14:42:42 -0700 | [diff] [blame] | 54 | |
FUJITA Tomonori | a852250 | 2008-04-29 00:59:36 -0700 | [diff] [blame] | 55 | config IOMMU_HELPER |
| 56 | bool |
| 57 | |
Nick Piggin | 95c354f | 2008-01-30 13:31:20 +0100 | [diff] [blame] | 58 | config GENERIC_LOCKBREAK |
| 59 | bool |
| 60 | default y |
| 61 | depends on SMP && PREEMPT |
| 62 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 63 | config RWSEM_XCHGADD_ALGORITHM |
| 64 | bool |
| 65 | default y |
| 66 | |
Mel Gorman | d9c2340 | 2007-10-16 01:26:01 -0700 | [diff] [blame] | 67 | config HUGETLB_PAGE_SIZE_VARIABLE |
| 68 | bool |
| 69 | depends on HUGETLB_PAGE |
| 70 | default y |
| 71 | |
Akinobu Mita | 2875aef | 2006-03-26 01:39:25 -0800 | [diff] [blame] | 72 | config GENERIC_FIND_NEXT_BIT |
| 73 | bool |
| 74 | default y |
| 75 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 76 | config GENERIC_CALIBRATE_DELAY |
| 77 | bool |
| 78 | default y |
| 79 | |
Tony Luck | 0aa366f | 2007-07-20 11:22:30 -0700 | [diff] [blame] | 80 | config GENERIC_TIME |
| 81 | bool |
| 82 | default y |
| 83 | |
| 84 | config GENERIC_TIME_VSYSCALL |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 85 | bool |
| 86 | default y |
| 87 | |
travis@sgi.com | 988c388 | 2008-01-30 23:27:58 +0100 | [diff] [blame] | 88 | config HAVE_SETUP_PER_CPU_AREA |
travis@sgi.com | b32ef63 | 2008-01-30 13:32:51 +0100 | [diff] [blame] | 89 | def_bool y |
| 90 | |
Matt Domsch | 3ed3bce | 2006-03-26 01:37:03 -0800 | [diff] [blame] | 91 | config DMI |
| 92 | bool |
| 93 | default y |
| 94 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 95 | config EFI |
| 96 | bool |
| 97 | default y |
| 98 | |
| 99 | config GENERIC_IOMAP |
| 100 | bool |
| 101 | default y |
| 102 | |
Ingo Molnar | ae1e913 | 2008-11-11 09:05:16 +0100 | [diff] [blame] | 103 | config SCHED_OMIT_FRAME_POINTER |
Anton Blanchard | 7d12e52 | 2005-05-05 16:15:11 -0700 | [diff] [blame] | 104 | bool |
| 105 | default y |
| 106 | |
Jes Sorensen | f14f75b | 2005-06-21 17:15:02 -0700 | [diff] [blame] | 107 | config IA64_UNCACHED_ALLOCATOR |
| 108 | bool |
| 109 | select GENERIC_ALLOCATOR |
| 110 | |
Al Viro | e65e1fc | 2006-09-12 03:04:40 -0400 | [diff] [blame] | 111 | config AUDIT_ARCH |
| 112 | bool |
| 113 | default y |
| 114 | |
Isaku Yamahata | ba9cc32 | 2008-10-17 11:18:11 +0900 | [diff] [blame] | 115 | menuconfig PARAVIRT_GUEST |
| 116 | bool "Paravirtualized guest support" |
| 117 | help |
| 118 | Say Y here to get to see options related to running Linux under |
| 119 | various hypervisors. This option alone does not add any kernel code. |
| 120 | |
| 121 | If you say N, all options in this submenu will be skipped and disabled. |
| 122 | |
| 123 | if PARAVIRT_GUEST |
| 124 | |
| 125 | config PARAVIRT |
| 126 | bool "Enable paravirtualization code" |
| 127 | depends on PARAVIRT_GUEST |
| 128 | default y |
| 129 | bool |
| 130 | default y |
| 131 | help |
| 132 | This changes the kernel so it can modify itself when it is run |
| 133 | under a hypervisor, potentially improving performance significantly |
| 134 | over full virtualization. However, when run without a hypervisor |
| 135 | the kernel is theoretically slower and slightly larger. |
| 136 | |
| 137 | |
| 138 | source "arch/ia64/xen/Kconfig" |
| 139 | |
| 140 | endif |
| 141 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 142 | choice |
| 143 | prompt "System type" |
| 144 | default IA64_GENERIC |
| 145 | |
| 146 | config IA64_GENERIC |
| 147 | bool "generic" |
| 148 | select NUMA |
| 149 | select ACPI_NUMA |
Jan Beulich | d1598e0 | 2007-01-03 09:26:21 +0000 | [diff] [blame] | 150 | select SWIOTLB |
Fenghua Yu | 62fdd76 | 2008-10-17 12:14:13 -0700 | [diff] [blame] | 151 | select PCI_MSI |
Tony Luck | f2b3fdc | 2008-11-03 13:54:52 -0800 | [diff] [blame] | 152 | select DMAR |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 153 | help |
| 154 | This selects the system type of your hardware. A "generic" kernel |
| 155 | will run on any supported IA-64 system. However, if you configure |
| 156 | a kernel for your specific system, it will be faster and smaller. |
| 157 | |
| 158 | generic For any supported IA-64 system |
| 159 | DIG-compliant For DIG ("Developer's Interface Guide") compliant systems |
Fenghua Yu | 62fdd76 | 2008-10-17 12:14:13 -0700 | [diff] [blame] | 160 | DIG+Intel+IOMMU For DIG systems with Intel IOMMU |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 161 | HP-zx1/sx1000 For HP systems |
| 162 | HP-zx1/sx1000+swiotlb For HP systems with (broken) DMA-constrained devices. |
| 163 | SGI-SN2 For SGI Altix systems |
Jack Steiner | 2224661 | 2008-05-06 15:18:57 -0500 | [diff] [blame] | 164 | SGI-UV For SGI UV systems |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 165 | Ski-simulator For the HP simulator <http://www.hpl.hp.com/research/linux/ski/> |
Isaku Yamahata | ba9cc32 | 2008-10-17 11:18:11 +0900 | [diff] [blame] | 166 | Xen-domU For xen domU system |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 167 | |
| 168 | If you don't know what to do, choose "generic". |
| 169 | |
| 170 | config IA64_DIG |
| 171 | bool "DIG-compliant" |
Jan Beulich | d1598e0 | 2007-01-03 09:26:21 +0000 | [diff] [blame] | 172 | select SWIOTLB |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 173 | |
Fenghua Yu | 62fdd76 | 2008-10-17 12:14:13 -0700 | [diff] [blame] | 174 | config IA64_DIG_VTD |
| 175 | bool "DIG+Intel+IOMMU" |
| 176 | select DMAR |
| 177 | select PCI_MSI |
| 178 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 179 | config IA64_HP_ZX1 |
| 180 | bool "HP-zx1/sx1000" |
| 181 | help |
| 182 | Build a kernel that runs on HP zx1 and sx1000 systems. This adds |
| 183 | support for the HP I/O MMU. |
| 184 | |
| 185 | config IA64_HP_ZX1_SWIOTLB |
| 186 | bool "HP-zx1/sx1000 with software I/O TLB" |
Jan Beulich | d1598e0 | 2007-01-03 09:26:21 +0000 | [diff] [blame] | 187 | select SWIOTLB |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
| 195 | config IA64_SGI_SN2 |
| 196 | bool "SGI-SN2" |
Jes Sorensen | bd3be24 | 2008-02-11 15:10:19 +0100 | [diff] [blame] | 197 | select NUMA |
| 198 | select ACPI_NUMA |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
Jack Steiner | 3351ab9 | 2008-07-31 07:52:50 -0500 | [diff] [blame] | 206 | config IA64_SGI_UV |
| 207 | bool "SGI-UV" |
Jack Steiner | 2224661 | 2008-05-06 15:18:57 -0500 | [diff] [blame] | 208 | select NUMA |
| 209 | select ACPI_NUMA |
| 210 | select SWIOTLB |
| 211 | help |
| 212 | Selecting this option will optimize the kernel for use on UV based |
| 213 | systems, but the resulting kernel binary will not run on other |
| 214 | types of ia64 systems. If you have an SGI UV system, it's safe |
| 215 | to select this option. If in doubt, select ia64 generic support |
| 216 | instead. |
| 217 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 218 | config IA64_HP_SIM |
| 219 | bool "Ski-simulator" |
Jan Beulich | d1598e0 | 2007-01-03 09:26:21 +0000 | [diff] [blame] | 220 | select SWIOTLB |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 221 | |
Isaku Yamahata | ba9cc32 | 2008-10-17 11:18:11 +0900 | [diff] [blame] | 222 | config IA64_XEN_GUEST |
| 223 | bool "Xen guest" |
| 224 | depends on XEN |
| 225 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 226 | endchoice |
| 227 | |
| 228 | choice |
| 229 | prompt "Processor type" |
| 230 | default ITANIUM |
| 231 | |
| 232 | config ITANIUM |
| 233 | bool "Itanium" |
| 234 | help |
| 235 | Select your IA-64 processor type. The default is Itanium. |
| 236 | This choice is safe for all IA-64 systems, but may not perform |
| 237 | optimally on systems with, say, Itanium 2 or newer processors. |
| 238 | |
| 239 | config MCKINLEY |
| 240 | bool "Itanium 2" |
| 241 | help |
| 242 | Select this to configure for an Itanium 2 (McKinley) processor. |
| 243 | |
| 244 | endchoice |
| 245 | |
| 246 | choice |
| 247 | prompt "Kernel page size" |
| 248 | default IA64_PAGE_SIZE_16KB |
| 249 | |
| 250 | config IA64_PAGE_SIZE_4KB |
| 251 | bool "4KB" |
| 252 | help |
| 253 | This lets you select the page size of the kernel. For best IA-64 |
| 254 | performance, a page size of 8KB or 16KB is recommended. For best |
| 255 | IA-32 compatibility, a page size of 4KB should be selected (the vast |
| 256 | majority of IA-32 binaries work perfectly fine with a larger page |
| 257 | size). For Itanium 2 or newer systems, a page size of 64KB can also |
| 258 | be selected. |
| 259 | |
| 260 | 4KB For best IA-32 compatibility |
| 261 | 8KB For best IA-64 performance |
| 262 | 16KB For best IA-64 performance |
| 263 | 64KB Requires Itanium 2 or newer processor. |
| 264 | |
| 265 | If you don't know what to do, choose 16KB. |
| 266 | |
| 267 | config IA64_PAGE_SIZE_8KB |
| 268 | bool "8KB" |
| 269 | |
| 270 | config IA64_PAGE_SIZE_16KB |
| 271 | bool "16KB" |
| 272 | |
| 273 | config IA64_PAGE_SIZE_64KB |
| 274 | depends on !ITANIUM |
| 275 | bool "64KB" |
| 276 | |
| 277 | endchoice |
| 278 | |
Robin Holt | 837cd0b | 2005-11-11 09:35:43 -0600 | [diff] [blame] | 279 | choice |
| 280 | prompt "Page Table Levels" |
| 281 | default PGTABLE_3 |
| 282 | |
| 283 | config PGTABLE_3 |
| 284 | bool "3 Levels" |
| 285 | |
| 286 | config PGTABLE_4 |
| 287 | depends on !IA64_PAGE_SIZE_64KB |
| 288 | bool "4 Levels" |
| 289 | |
| 290 | endchoice |
| 291 | |
Tony Luck | 10d0aa3 | 2008-02-11 13:23:46 -0800 | [diff] [blame] | 292 | if IA64_HP_SIM |
| 293 | config HZ |
| 294 | default 32 |
| 295 | endif |
| 296 | |
| 297 | if !IA64_HP_SIM |
Christoph Lameter | b5d23e5 | 2005-06-23 00:08:27 -0700 | [diff] [blame] | 298 | source kernel/Kconfig.hz |
Tony Luck | 10d0aa3 | 2008-02-11 13:23:46 -0800 | [diff] [blame] | 299 | endif |
Christoph Lameter | b5d23e5 | 2005-06-23 00:08:27 -0700 | [diff] [blame] | 300 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 301 | config IA64_BRL_EMU |
| 302 | bool |
| 303 | depends on ITANIUM |
| 304 | default y |
| 305 | |
| 306 | # align cache-sensitive data to 128 bytes |
| 307 | config IA64_L1_CACHE_SHIFT |
| 308 | int |
| 309 | default "7" if MCKINLEY |
| 310 | default "6" if ITANIUM |
| 311 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 312 | config IA64_CYCLONE |
| 313 | bool "Cyclone (EXA) Time Source support" |
| 314 | help |
| 315 | Say Y here to enable support for IBM EXA Cyclone time source. |
| 316 | If you're unsure, answer N. |
| 317 | |
| 318 | config IOSAPIC |
| 319 | bool |
| 320 | depends on !IA64_HP_SIM |
| 321 | default y |
| 322 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 323 | config FORCE_MAX_ZONEORDER |
Bob Picco | da9577c | 2005-10-04 15:13:37 -0400 | [diff] [blame] | 324 | int "MAX_ORDER (11 - 17)" if !HUGETLB_PAGE |
| 325 | range 11 17 if !HUGETLB_PAGE |
| 326 | default "17" if HUGETLB_PAGE |
| 327 | default "11" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 328 | |
Hidetoshi Seto | b64f34c | 2008-01-29 14:27:30 +0900 | [diff] [blame] | 329 | config VIRT_CPU_ACCOUNTING |
| 330 | bool "Deterministic task and CPU time accounting" |
| 331 | default n |
| 332 | help |
| 333 | Select this option to enable more accurate task and CPU time |
| 334 | accounting. This is done by reading a CPU counter on each |
| 335 | kernel entry and exit and on transitions within the kernel |
| 336 | between system, softirq and hardirq state, so there is a |
| 337 | small performance impact. |
| 338 | If in doubt, say N here. |
| 339 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 340 | config SMP |
| 341 | bool "Symmetric multi-processing support" |
Jens Axboe | f27b433 | 2008-06-26 11:22:30 +0200 | [diff] [blame] | 342 | select USE_GENERIC_SMP_HELPERS |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 343 | help |
| 344 | This enables support for systems with more than one CPU. If you have |
| 345 | a system with only one CPU, say N. If you have a system with more |
| 346 | than one CPU, say Y. |
| 347 | |
| 348 | If you say N here, the kernel will run on single and multiprocessor |
| 349 | systems, but will use only one CPU of a multiprocessor system. If |
| 350 | you say Y here, the kernel will run on many, but not all, |
| 351 | single processor systems. On a single processor system, the kernel |
| 352 | will run faster if you say N here. |
| 353 | |
Adrian Bunk | 03502fa | 2008-02-03 15:50:21 +0200 | [diff] [blame] | 354 | See also the SMP-HOWTO available at |
| 355 | <http://www.tldp.org/docs.html#howto>. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 356 | |
| 357 | If you don't know what to do here, say N. |
| 358 | |
| 359 | config NR_CPUS |
Robin Holt | d1339df | 2008-08-02 13:29:24 -0500 | [diff] [blame] | 360 | int "Maximum number of CPUs (2-4096)" |
| 361 | range 2 4096 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 362 | depends on SMP |
Robin Holt | d1339df | 2008-08-02 13:29:24 -0500 | [diff] [blame] | 363 | default "4096" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 364 | help |
| 365 | You should set this to the number of CPUs in your system, but |
| 366 | keep in mind that a kernel compiled for, e.g., 2 CPUs will boot but |
| 367 | only use 2 CPUs on a >2 CPU system. Setting this to a value larger |
| 368 | than 64 will cause the use of a CPU mask array, causing a small |
| 369 | performance hit. |
| 370 | |
| 371 | config HOTPLUG_CPU |
| 372 | bool "Support for hot-pluggable CPUs (EXPERIMENTAL)" |
| 373 | depends on SMP && EXPERIMENTAL |
| 374 | select HOTPLUG |
| 375 | default n |
| 376 | ---help--- |
| 377 | Say Y here to experiment with turning CPUs off and on. CPUs |
| 378 | can be controlled through /sys/devices/system/cpu/cpu#. |
| 379 | Say N if you want to disable CPU hotplug. |
| 380 | |
Yasunori Goto | cc57637 | 2006-06-29 02:24:27 -0700 | [diff] [blame] | 381 | config ARCH_ENABLE_MEMORY_HOTPLUG |
| 382 | def_bool y |
| 383 | |
KAMEZAWA Hiroyuki | 0c0e619 | 2007-10-16 01:26:12 -0700 | [diff] [blame] | 384 | config ARCH_ENABLE_MEMORY_HOTREMOVE |
| 385 | def_bool y |
| 386 | |
Suresh Siddha | 7a9bdd8 | 2005-04-05 18:05:00 -0700 | [diff] [blame] | 387 | config SCHED_SMT |
| 388 | bool "SMT scheduler support" |
| 389 | depends on SMP |
Suresh Siddha | 7a9bdd8 | 2005-04-05 18:05:00 -0700 | [diff] [blame] | 390 | help |
| 391 | Improves the CPU scheduler's decision making when dealing with |
| 392 | Intel IA64 chips with MultiThreading at a cost of slightly increased |
| 393 | overhead in some places. If unsure say N here. |
| 394 | |
Ashok Raj | ff74190 | 2005-11-11 14:32:40 -0800 | [diff] [blame] | 395 | config PERMIT_BSP_REMOVE |
| 396 | bool "Support removal of Bootstrap Processor" |
| 397 | depends on HOTPLUG_CPU |
| 398 | default n |
| 399 | ---help--- |
| 400 | Say Y here if your platform SAL will support removal of BSP with HOTPLUG_CPU |
| 401 | support. |
| 402 | |
| 403 | config FORCE_CPEI_RETARGET |
| 404 | bool "Force assumption that CPEI can be re-targetted" |
| 405 | depends on PERMIT_BSP_REMOVE |
| 406 | default n |
| 407 | ---help--- |
| 408 | Say Y if you need to force the assumption that CPEI can be re-targetted to |
| 409 | any cpu in the system. This hint is available via ACPI 3.0 specifications. |
| 410 | Tiger4 systems are capable of re-directing CPEI to any CPU other than BSP. |
| 411 | This option it useful to enable this feature on older BIOS's as well. |
| 412 | You can also enable this by using boot command line option force_cpei=1. |
| 413 | |
Satyam Sharma | 0b0517a4 | 2007-08-13 23:41:45 +0530 | [diff] [blame] | 414 | source "kernel/Kconfig.preempt" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 415 | |
Dave Hansen | 3f22ab2 | 2005-06-23 00:07:43 -0700 | [diff] [blame] | 416 | source "mm/Kconfig" |
| 417 | |
Bob Picco | da9577c | 2005-10-04 15:13:37 -0400 | [diff] [blame] | 418 | config ARCH_SELECT_MEMORY_MODEL |
| 419 | def_bool y |
| 420 | |
| 421 | config ARCH_DISCONTIGMEM_ENABLE |
| 422 | def_bool y |
| 423 | help |
| 424 | Say Y to support efficient handling of discontiguous physical memory, |
| 425 | for architectures which are either NUMA (Non-Uniform Memory Access) |
| 426 | or have huge holes in the physical address space for other reasons. |
| 427 | See <file:Documentation/vm/numa> for more. |
| 428 | |
| 429 | config ARCH_FLATMEM_ENABLE |
| 430 | def_bool y |
| 431 | |
| 432 | config ARCH_SPARSEMEM_ENABLE |
| 433 | def_bool y |
| 434 | depends on ARCH_DISCONTIGMEM_ENABLE |
Christoph Lameter | ef229c5 | 2007-10-16 01:24:15 -0700 | [diff] [blame] | 435 | select SPARSEMEM_VMEMMAP_ENABLE |
Bob Picco | da9577c | 2005-10-04 15:13:37 -0400 | [diff] [blame] | 436 | |
| 437 | config ARCH_DISCONTIGMEM_DEFAULT |
| 438 | def_bool y if (IA64_SGI_SN2 || IA64_GENERIC || IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB) |
| 439 | depends on ARCH_DISCONTIGMEM_ENABLE |
| 440 | |
| 441 | config NUMA |
| 442 | bool "NUMA support" |
| 443 | depends on !IA64_HP_SIM && !FLATMEM |
| 444 | default y if IA64_SGI_SN2 |
KAMEZAWA Hiroyuki | 6c33eb3 | 2006-11-08 17:44:50 -0800 | [diff] [blame] | 445 | select ACPI_NUMA if ACPI |
Bob Picco | da9577c | 2005-10-04 15:13:37 -0400 | [diff] [blame] | 446 | help |
| 447 | Say Y to compile the kernel to support NUMA (Non-Uniform Memory |
| 448 | Access). This option is for configuring high-end multiprocessor |
| 449 | server systems. If in doubt, say N. |
| 450 | |
Yasunori Goto | c80d79d | 2006-04-10 22:53:53 -0700 | [diff] [blame] | 451 | config NODES_SHIFT |
| 452 | int "Max num nodes shift(3-10)" |
| 453 | range 3 10 |
Christoph Lameter | c57d68c | 2006-08-22 19:43:27 -0700 | [diff] [blame] | 454 | default "10" |
Yasunori Goto | c80d79d | 2006-04-10 22:53:53 -0700 | [diff] [blame] | 455 | depends on NEED_MULTIPLE_NODES |
| 456 | help |
| 457 | This option specifies the maximum number of nodes in your SSI system. |
| 458 | MAX_NUMNODES will be 2^(This value). |
| 459 | If in doubt, use the default. |
| 460 | |
Mel Gorman | 05e0caa | 2006-09-27 01:49:54 -0700 | [diff] [blame] | 461 | config ARCH_POPULATES_NODE_MAP |
| 462 | def_bool y |
| 463 | |
Bob Picco | da9577c | 2005-10-04 15:13:37 -0400 | [diff] [blame] | 464 | # VIRTUAL_MEM_MAP and FLAT_NODE_MEM_MAP are functionally equivalent. |
| 465 | # VIRTUAL_MEM_MAP has been retained for historical reasons. |
| 466 | config VIRTUAL_MEM_MAP |
| 467 | bool "Virtual mem map" |
| 468 | depends on !SPARSEMEM |
| 469 | default y if !IA64_HP_SIM |
| 470 | help |
| 471 | Say Y to compile the kernel with support for a virtual mem map. |
| 472 | This code also only takes effect if a memory hole of greater than |
| 473 | 1 Gb is found during boot. You must turn this option on if you |
| 474 | require the DISCONTIGMEM option for your machine. If you are |
| 475 | unsure, say Y. |
| 476 | |
| 477 | config HOLES_IN_ZONE |
| 478 | bool |
| 479 | default y if VIRTUAL_MEM_MAP |
| 480 | |
| 481 | config HAVE_ARCH_EARLY_PFN_TO_NID |
Tony Luck | 334f85b6 | 2009-02-19 11:22:36 -0800 | [diff] [blame^] | 482 | def_bool NUMA && SPARSEMEM |
Bob Picco | da9577c | 2005-10-04 15:13:37 -0400 | [diff] [blame] | 483 | |
Yasunori Goto | 10ad400 | 2006-06-27 02:53:33 -0700 | [diff] [blame] | 484 | config HAVE_ARCH_NODEDATA_EXTENSION |
| 485 | def_bool y |
| 486 | depends on NUMA |
| 487 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 488 | config IA32_SUPPORT |
| 489 | bool "Support for Linux/x86 binaries" |
| 490 | help |
| 491 | IA-64 processors can execute IA-32 (X86) instructions. By |
| 492 | saying Y here, the kernel will include IA-32 system call |
| 493 | emulation support which makes it possible to transparently |
| 494 | run IA-32 Linux binaries on an IA-64 Linux system. |
| 495 | If in doubt, say Y. |
| 496 | |
| 497 | config COMPAT |
| 498 | bool |
| 499 | depends on IA32_SUPPORT |
| 500 | default y |
| 501 | |
Tony Luck | 7a6c813 | 2007-07-27 15:35:43 -0700 | [diff] [blame] | 502 | config COMPAT_FOR_U64_ALIGNMENT |
| 503 | def_bool COMPAT |
| 504 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 505 | config IA64_MCA_RECOVERY |
| 506 | tristate "MCA recovery from errors other than TLB." |
| 507 | |
| 508 | config PERFMON |
| 509 | bool "Performance monitor support" |
| 510 | help |
| 511 | Selects whether support for the IA-64 performance monitor hardware |
| 512 | is included in the kernel. This makes some kernel data-structures a |
| 513 | little bigger and slows down execution a bit, but it is generally |
| 514 | a good idea to turn this on. If you're unsure, say Y. |
| 515 | |
| 516 | config IA64_PALINFO |
| 517 | tristate "/proc/pal support" |
| 518 | help |
| 519 | If you say Y here, you are able to get PAL (Processor Abstraction |
| 520 | Layer) information in /proc/pal. This contains useful information |
| 521 | about the processors in your systems, such as cache and TLB sizes |
| 522 | and the PAL firmware version in use. |
| 523 | |
| 524 | To use this option, you have to ensure that the "/proc file system |
| 525 | support" (CONFIG_PROC_FS) is enabled, too. |
| 526 | |
Fenghua Yu | e9ef08b | 2006-12-08 16:06:01 -0800 | [diff] [blame] | 527 | config IA64_MC_ERR_INJECT |
| 528 | tristate "MC error injection support" |
| 529 | help |
Matt LaPlante | 01dd2fb | 2007-10-20 01:34:40 +0200 | [diff] [blame] | 530 | Adds support for MC error injection. If enabled, the kernel |
| 531 | will provide a sysfs interface for user applications to |
| 532 | call MC error injection PAL procedures to inject various errors. |
Fenghua Yu | e9ef08b | 2006-12-08 16:06:01 -0800 | [diff] [blame] | 533 | This is a useful tool for MCA testing. |
| 534 | |
| 535 | If you're unsure, do not select this option. |
| 536 | |
Jes Sorensen | 466575f | 2006-01-19 04:54:00 -0500 | [diff] [blame] | 537 | config SGI_SN |
| 538 | def_bool y if (IA64_SGI_SN2 || IA64_GENERIC) |
| 539 | |
David Mosberger-Tang | 2ab561a | 2006-06-21 11:19:22 -0700 | [diff] [blame] | 540 | config IA64_ESI |
| 541 | bool "ESI (Extensible SAL Interface) support" |
| 542 | help |
| 543 | If you say Y here, support is built into the kernel to |
| 544 | make ESI calls. ESI calls are used to support vendor-specific |
| 545 | firmware extensions, such as the ability to inject memory-errors |
| 546 | for test-purposes. If you're unsure, say N. |
| 547 | |
Bjorn Helgaas | 28eda5b | 2007-09-20 14:22:03 -0600 | [diff] [blame] | 548 | config IA64_HP_AML_NFW |
| 549 | bool "Support ACPI AML calls to native firmware" |
| 550 | help |
| 551 | This driver installs a global ACPI Operation Region handler for |
| 552 | region 0xA1. AML methods can use this OpRegion to call arbitrary |
| 553 | native firmware functions. The driver installs the OpRegion |
| 554 | handler if there is an HPQ5001 device or if the user supplies |
| 555 | the "force" module parameter, e.g., with the "aml_nfw.force" |
| 556 | kernel command line option. |
| 557 | |
Brent Casavant | c1311af | 2006-04-20 15:38:16 -0500 | [diff] [blame] | 558 | source "drivers/sn/Kconfig" |
| 559 | |
Zou Nan hai | a7956113 | 2006-12-07 09:51:35 -0800 | [diff] [blame] | 560 | config KEXEC |
| 561 | bool "kexec system call (EXPERIMENTAL)" |
| 562 | depends on EXPERIMENTAL && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU) |
| 563 | help |
| 564 | kexec is a system call that implements the ability to shutdown your |
| 565 | current kernel, and to start another kernel. It is like a reboot |
David Sterba | 3dde6ad | 2007-05-09 07:12:20 +0200 | [diff] [blame] | 566 | but it is independent of the system firmware. And like a reboot |
Zou Nan hai | a7956113 | 2006-12-07 09:51:35 -0800 | [diff] [blame] | 567 | you can start any kernel with it, not just Linux. |
| 568 | |
Matt LaPlante | 01dd2fb | 2007-10-20 01:34:40 +0200 | [diff] [blame] | 569 | The name comes from the similarity to the exec system call. |
Zou Nan hai | a7956113 | 2006-12-07 09:51:35 -0800 | [diff] [blame] | 570 | |
| 571 | It is an ongoing process to be certain the hardware in a machine |
| 572 | is properly shutdown, so do not be surprised if this code does not |
| 573 | initially work for you. It may help to enable device hotplugging |
| 574 | support. As of this writing the exact hardware interface is |
| 575 | strongly in flux, so no good recommendation can be made. |
| 576 | |
| 577 | config CRASH_DUMP |
Bernhard Walle | fb86611 | 2008-06-26 14:53:11 +0200 | [diff] [blame] | 578 | bool "kernel crash dumps" |
| 579 | depends on IA64_MCA_RECOVERY && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU) |
Zou Nan hai | a7956113 | 2006-12-07 09:51:35 -0800 | [diff] [blame] | 580 | help |
| 581 | Generate crash dump after being started by kexec. |
| 582 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 583 | source "drivers/firmware/Kconfig" |
| 584 | |
| 585 | source "fs/Kconfig.binfmt" |
| 586 | |
| 587 | endmenu |
| 588 | |
Bjorn Helgaas | 1547a01 | 2008-11-06 10:53:54 -0600 | [diff] [blame] | 589 | menu "Power management and ACPI options" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 590 | |
Len Brown | eb7b6b3 | 2005-08-25 12:08:25 -0400 | [diff] [blame] | 591 | source "kernel/power/Kconfig" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 592 | |
| 593 | source "drivers/acpi/Kconfig" |
| 594 | |
Venkatesh Pallipadi | 4db8699 | 2005-07-29 16:15:00 -0700 | [diff] [blame] | 595 | if PM |
| 596 | |
| 597 | source "arch/ia64/kernel/cpufreq/Kconfig" |
| 598 | |
| 599 | endif |
| 600 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 601 | endmenu |
| 602 | |
| 603 | if !IA64_HP_SIM |
| 604 | |
| 605 | menu "Bus options (PCI, PCMCIA)" |
| 606 | |
| 607 | config PCI |
| 608 | bool "PCI support" |
| 609 | help |
Christoph Hellwig | 85f265d | 2005-08-09 13:38:00 -0700 | [diff] [blame] | 610 | Real IA-64 machines all have PCI/PCI-X/PCI Express busses. Say Y |
| 611 | here unless you are using a simulator without PCI support. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 612 | |
| 613 | config PCI_DOMAINS |
Matthew Wilcox | 36e2359 | 2007-07-10 10:54:40 -0600 | [diff] [blame] | 614 | def_bool PCI |
| 615 | |
| 616 | config PCI_SYSCALL |
| 617 | def_bool PCI |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 618 | |
Kenji Kaneshige | b7bb575 | 2006-04-28 11:50:43 +0900 | [diff] [blame] | 619 | source "drivers/pci/pcie/Kconfig" |
| 620 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 621 | source "drivers/pci/Kconfig" |
| 622 | |
| 623 | source "drivers/pci/hotplug/Kconfig" |
| 624 | |
| 625 | source "drivers/pcmcia/Kconfig" |
| 626 | |
Fenghua Yu | 62fdd76 | 2008-10-17 12:14:13 -0700 | [diff] [blame] | 627 | config DMAR |
| 628 | bool "Support for DMA Remapping Devices (EXPERIMENTAL)" |
| 629 | depends on IA64_GENERIC && ACPI && EXPERIMENTAL |
| 630 | help |
| 631 | DMA remapping (DMAR) devices support enables independent address |
| 632 | translations for Direct Memory Access (DMA) from devices. |
| 633 | These DMA remapping devices are reported via ACPI tables |
| 634 | and include PCI device scope covered by these DMA |
| 635 | remapping devices. |
| 636 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 637 | endmenu |
| 638 | |
| 639 | endif |
| 640 | |
Sam Ravnborg | d5950b4 | 2005-07-11 21:03:49 -0700 | [diff] [blame] | 641 | source "net/Kconfig" |
| 642 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 643 | source "drivers/Kconfig" |
| 644 | |
Bjorn Helgaas | 1547a01 | 2008-11-06 10:53:54 -0600 | [diff] [blame] | 645 | source "arch/ia64/hp/sim/Kconfig" |
| 646 | |
Jes Sorensen | 1a4b0fc | 2006-11-10 12:27:49 -0800 | [diff] [blame] | 647 | config MSPEC |
| 648 | tristate "Memory special operations driver" |
| 649 | depends on IA64 |
| 650 | select IA64_UNCACHED_ALLOCATOR |
| 651 | help |
| 652 | If you have an ia64 and you want to enable memory special |
| 653 | operations support (formerly known as fetchop), say Y here, |
| 654 | otherwise say N. |
| 655 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 656 | source "fs/Kconfig" |
| 657 | |
Bjorn Helgaas | 1547a01 | 2008-11-06 10:53:54 -0600 | [diff] [blame] | 658 | source "arch/ia64/Kconfig.debug" |
| 659 | |
| 660 | source "security/Kconfig" |
| 661 | |
| 662 | source "crypto/Kconfig" |
| 663 | |
Xiantao Zhang | b693919 | 2008-03-28 14:58:47 +0800 | [diff] [blame] | 664 | source "arch/ia64/kvm/Kconfig" |
| 665 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 666 | source "lib/Kconfig" |
| 667 | |
| 668 | # |
| 669 | # Use the generic interrupt handling code in kernel/irq/: |
| 670 | # |
| 671 | config GENERIC_HARDIRQS |
| 672 | bool |
| 673 | default y |
| 674 | |
| 675 | config GENERIC_IRQ_PROBE |
| 676 | bool |
| 677 | default y |
| 678 | |
Ashok Raj | 54d5d42 | 2005-09-06 15:16:15 -0700 | [diff] [blame] | 679 | config GENERIC_PENDING_IRQ |
| 680 | bool |
| 681 | depends on GENERIC_HARDIRQS && SMP |
| 682 | default y |
| 683 | |
Ingo Molnar | 0d7012a | 2006-06-29 02:24:43 -0700 | [diff] [blame] | 684 | config IRQ_PER_CPU |
| 685 | bool |
| 686 | default y |
| 687 | |
FUJITA Tomonori | b34eb53 | 2008-03-28 14:27:03 -0700 | [diff] [blame] | 688 | config IOMMU_HELPER |
FUJITA Tomonori | a852250 | 2008-04-29 00:59:36 -0700 | [diff] [blame] | 689 | def_bool (IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB || IA64_GENERIC || SWIOTLB) |
Joerg Roedel | 1aaf118 | 2008-11-26 17:25:13 +0100 | [diff] [blame] | 690 | |
| 691 | config IOMMU_API |
| 692 | def_bool (DMAR) |