Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | source "init/Kconfig" |
| 2 | |
Matt Helsley | dc52ddc | 2008-10-18 20:27:21 -0700 | [diff] [blame] | 3 | source "kernel/Kconfig.freezer" |
| 4 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5 | menu "Processor type and features" |
| 6 | |
| 7 | config IA64 |
| 8 | bool |
Len Brown | 06f87ad | 2007-01-26 00:38:53 -0500 | [diff] [blame] | 9 | select PCI if (!IA64_HP_SIM) |
| 10 | select ACPI if (!IA64_HP_SIM) |
Len Brown | 8140a90 | 2007-03-16 22:00:43 -0400 | [diff] [blame] | 11 | select PM if (!IA64_HP_SIM) |
Dan Williams | f282b97 | 2007-04-18 18:46:20 +1000 | [diff] [blame] | 12 | select ARCH_SUPPORTS_MSI |
Tony Luck | 0773a6c | 2009-01-15 10:29:17 -0800 | [diff] [blame] | 13 | select HAVE_UNSTABLE_SCHED_CLOCK |
Sam Ravnborg | ec7748b | 2008-02-09 10:46:40 +0100 | [diff] [blame] | 14 | select HAVE_IDE |
Mathieu Desnoyers | 42d4b83 | 2008-02-02 15:10:34 -0500 | [diff] [blame] | 15 | select HAVE_OPROFILE |
Mathieu Desnoyers | 3f55009 | 2008-02-02 15:10:35 -0500 | [diff] [blame] | 16 | select HAVE_KPROBES |
Ananth N Mavinakayanahalli | 9edddaa | 2008-03-04 14:28:37 -0800 | [diff] [blame] | 17 | select HAVE_KRETPROBES |
Shaohua Li | a14a07b | 2009-01-09 11:29:49 +0800 | [diff] [blame] | 18 | select HAVE_FTRACE_MCOUNT_RECORD |
| 19 | select HAVE_DYNAMIC_FTRACE if (!ITANIUM) |
Shaohua Li | d3e75ff | 2009-01-09 11:29:46 +0800 | [diff] [blame] | 20 | select HAVE_FUNCTION_TRACER |
Arthur Kepner | 74bc7ce | 2008-04-29 01:00:30 -0700 | [diff] [blame] | 21 | select HAVE_DMA_ATTRS |
Xiantao Zhang | b693919 | 2008-03-28 14:58:47 +0800 | [diff] [blame] | 22 | select HAVE_KVM |
Shaohua Li | 9690ad0 | 2008-10-01 13:57:14 -0700 | [diff] [blame] | 23 | select HAVE_ARCH_TRACEHOOK |
FUJITA Tomonori | 9916219 | 2009-06-17 16:28:14 -0700 | [diff] [blame] | 24 | select HAVE_DMA_API_DEBUG |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 25 | default y |
| 26 | help |
| 27 | The Itanium Processor Family is Intel's 64-bit successor to |
| 28 | the 32-bit X86 line. The IA-64 Linux project has a home |
| 29 | page at <http://www.linuxia64.org/> and a mailing list at |
| 30 | <linux-ia64@vger.kernel.org>. |
| 31 | |
| 32 | config 64BIT |
| 33 | bool |
Zhang, Yanmin | 9f271d5 | 2007-02-09 11:29:51 +0800 | [diff] [blame] | 34 | select ATA_NONSTANDARD if ATA |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 35 | default y |
| 36 | |
Christoph Lameter | 66701b1 | 2007-02-10 01:43:09 -0800 | [diff] [blame] | 37 | config ZONE_DMA |
Christoph Lameter | 09ae1f5 | 2007-02-10 01:43:11 -0800 | [diff] [blame] | 38 | def_bool y |
| 39 | depends on !IA64_SGI_SN2 |
Christoph Lameter | 66701b1 | 2007-02-10 01:43:09 -0800 | [diff] [blame] | 40 | |
Christoph Lameter | 2bd62a4 | 2007-05-10 22:42:53 -0700 | [diff] [blame] | 41 | config QUICKLIST |
| 42 | bool |
| 43 | default y |
| 44 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 45 | config MMU |
| 46 | bool |
| 47 | default y |
| 48 | |
FUJITA Tomonori | e33621a | 2010-10-01 14:15:27 -0700 | [diff] [blame] | 49 | config ARCH_DMA_ADDR_T_64BIT |
| 50 | def_bool y |
| 51 | |
FUJITA Tomonori | 66ed5ef | 2010-03-10 15:23:25 -0800 | [diff] [blame] | 52 | config NEED_DMA_MAP_STATE |
| 53 | def_bool y |
| 54 | |
FUJITA Tomonori | 18e9830 | 2010-05-26 14:44:32 -0700 | [diff] [blame] | 55 | config NEED_SG_DMA_LENGTH |
| 56 | def_bool y |
| 57 | |
John W. Linville | 6c654b5 | 2005-09-29 14:42:42 -0700 | [diff] [blame] | 58 | config SWIOTLB |
| 59 | bool |
John W. Linville | 6c654b5 | 2005-09-29 14:42:42 -0700 | [diff] [blame] | 60 | |
Tony Luck | 85718fa | 2010-09-23 13:52:07 -0700 | [diff] [blame] | 61 | config STACKTRACE_SUPPORT |
| 62 | def_bool y |
| 63 | |
Nick Piggin | 95c354f | 2008-01-30 13:31:20 +0100 | [diff] [blame] | 64 | config GENERIC_LOCKBREAK |
Tony Luck | 2c86963 | 2009-09-25 08:42:16 -0700 | [diff] [blame] | 65 | def_bool n |
Nick Piggin | 95c354f | 2008-01-30 13:31:20 +0100 | [diff] [blame] | 66 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 67 | config RWSEM_XCHGADD_ALGORITHM |
| 68 | bool |
| 69 | default y |
| 70 | |
Mel Gorman | d9c2340 | 2007-10-16 01:26:01 -0700 | [diff] [blame] | 71 | config HUGETLB_PAGE_SIZE_VARIABLE |
| 72 | bool |
| 73 | depends on HUGETLB_PAGE |
| 74 | default y |
| 75 | |
Akinobu Mita | 2875aef | 2006-03-26 01:39:25 -0800 | [diff] [blame] | 76 | config GENERIC_FIND_NEXT_BIT |
| 77 | bool |
| 78 | default y |
| 79 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 80 | config GENERIC_CALIBRATE_DELAY |
| 81 | bool |
| 82 | default y |
| 83 | |
Tony Luck | 0aa366f | 2007-07-20 11:22:30 -0700 | [diff] [blame] | 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 | |
Venkatesh Pallipadi | 46cf98c | 2009-07-10 09:57:37 -0700 | [diff] [blame] | 111 | config ARCH_USES_PG_UNCACHED |
| 112 | def_bool y |
| 113 | depends on IA64_UNCACHED_ALLOCATOR |
| 114 | |
Al Viro | e65e1fc | 2006-09-12 03:04:40 -0400 | [diff] [blame] | 115 | config AUDIT_ARCH |
| 116 | bool |
| 117 | default y |
| 118 | |
Isaku Yamahata | ba9cc32 | 2008-10-17 11:18:11 +0900 | [diff] [blame] | 119 | menuconfig PARAVIRT_GUEST |
| 120 | bool "Paravirtualized guest support" |
| 121 | help |
| 122 | Say Y here to get to see options related to running Linux under |
| 123 | various hypervisors. This option alone does not add any kernel code. |
| 124 | |
| 125 | If you say N, all options in this submenu will be skipped and disabled. |
| 126 | |
| 127 | if PARAVIRT_GUEST |
| 128 | |
| 129 | config PARAVIRT |
| 130 | bool "Enable paravirtualization code" |
| 131 | depends on PARAVIRT_GUEST |
| 132 | default y |
| 133 | bool |
| 134 | default y |
| 135 | help |
| 136 | This changes the kernel so it can modify itself when it is run |
| 137 | under a hypervisor, potentially improving performance significantly |
| 138 | over full virtualization. However, when run without a hypervisor |
| 139 | the kernel is theoretically slower and slightly larger. |
| 140 | |
| 141 | |
| 142 | source "arch/ia64/xen/Kconfig" |
| 143 | |
| 144 | endif |
| 145 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 146 | choice |
| 147 | prompt "System type" |
| 148 | default IA64_GENERIC |
| 149 | |
| 150 | config IA64_GENERIC |
| 151 | bool "generic" |
| 152 | select NUMA |
| 153 | select ACPI_NUMA |
Jan Beulich | d1598e0 | 2007-01-03 09:26:21 +0000 | [diff] [blame] | 154 | select SWIOTLB |
Fenghua Yu | 62fdd76 | 2008-10-17 12:14:13 -0700 | [diff] [blame] | 155 | select PCI_MSI |
Tony Luck | f2b3fdc | 2008-11-03 13:54:52 -0800 | [diff] [blame] | 156 | select DMAR |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 157 | help |
| 158 | This selects the system type of your hardware. A "generic" kernel |
| 159 | will run on any supported IA-64 system. However, if you configure |
| 160 | a kernel for your specific system, it will be faster and smaller. |
| 161 | |
| 162 | generic For any supported IA-64 system |
| 163 | DIG-compliant For DIG ("Developer's Interface Guide") compliant systems |
Fenghua Yu | 62fdd76 | 2008-10-17 12:14:13 -0700 | [diff] [blame] | 164 | DIG+Intel+IOMMU For DIG systems with Intel IOMMU |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 165 | HP-zx1/sx1000 For HP systems |
| 166 | HP-zx1/sx1000+swiotlb For HP systems with (broken) DMA-constrained devices. |
| 167 | SGI-SN2 For SGI Altix systems |
Jack Steiner | 2224661 | 2008-05-06 15:18:57 -0500 | [diff] [blame] | 168 | SGI-UV For SGI UV systems |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 169 | 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] | 170 | Xen-domU For xen domU system |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 171 | |
| 172 | If you don't know what to do, choose "generic". |
| 173 | |
| 174 | config IA64_DIG |
| 175 | bool "DIG-compliant" |
Jan Beulich | d1598e0 | 2007-01-03 09:26:21 +0000 | [diff] [blame] | 176 | select SWIOTLB |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 177 | |
Fenghua Yu | 62fdd76 | 2008-10-17 12:14:13 -0700 | [diff] [blame] | 178 | config IA64_DIG_VTD |
| 179 | bool "DIG+Intel+IOMMU" |
| 180 | select DMAR |
| 181 | select PCI_MSI |
| 182 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 183 | config IA64_HP_ZX1 |
| 184 | bool "HP-zx1/sx1000" |
| 185 | help |
| 186 | Build a kernel that runs on HP zx1 and sx1000 systems. This adds |
| 187 | support for the HP I/O MMU. |
| 188 | |
| 189 | config IA64_HP_ZX1_SWIOTLB |
| 190 | bool "HP-zx1/sx1000 with software I/O TLB" |
Jan Beulich | d1598e0 | 2007-01-03 09:26:21 +0000 | [diff] [blame] | 191 | select SWIOTLB |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 192 | help |
| 193 | Build a kernel that runs on HP zx1 and sx1000 systems even when they |
| 194 | have broken PCI devices which cannot DMA to full 32 bits. Apart |
| 195 | from support for the HP I/O MMU, this includes support for the software |
| 196 | I/O TLB, which allows supporting the broken devices at the expense of |
| 197 | wasting some kernel memory (about 2MB by default). |
| 198 | |
| 199 | config IA64_SGI_SN2 |
| 200 | bool "SGI-SN2" |
Jes Sorensen | bd3be24 | 2008-02-11 15:10:19 +0100 | [diff] [blame] | 201 | select NUMA |
| 202 | select ACPI_NUMA |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 203 | help |
| 204 | Selecting this option will optimize the kernel for use on sn2 based |
| 205 | systems, but the resulting kernel binary will not run on other |
| 206 | types of ia64 systems. If you have an SGI Altix system, it's safe |
| 207 | to select this option. If in doubt, select ia64 generic support |
| 208 | instead. |
| 209 | |
Jack Steiner | 3351ab9 | 2008-07-31 07:52:50 -0500 | [diff] [blame] | 210 | config IA64_SGI_UV |
| 211 | bool "SGI-UV" |
Jack Steiner | 2224661 | 2008-05-06 15:18:57 -0500 | [diff] [blame] | 212 | select NUMA |
| 213 | select ACPI_NUMA |
| 214 | select SWIOTLB |
| 215 | help |
| 216 | Selecting this option will optimize the kernel for use on UV based |
| 217 | systems, but the resulting kernel binary will not run on other |
| 218 | types of ia64 systems. If you have an SGI UV system, it's safe |
| 219 | to select this option. If in doubt, select ia64 generic support |
| 220 | instead. |
| 221 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 222 | config IA64_HP_SIM |
| 223 | bool "Ski-simulator" |
Jan Beulich | d1598e0 | 2007-01-03 09:26:21 +0000 | [diff] [blame] | 224 | select SWIOTLB |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 225 | |
Isaku Yamahata | ba9cc32 | 2008-10-17 11:18:11 +0900 | [diff] [blame] | 226 | config IA64_XEN_GUEST |
| 227 | bool "Xen guest" |
Isaku Yamahata | 1d5b20f | 2009-01-16 12:17:30 +0900 | [diff] [blame] | 228 | select SWIOTLB |
Isaku Yamahata | ba9cc32 | 2008-10-17 11:18:11 +0900 | [diff] [blame] | 229 | depends on XEN |
Isaku Yamahata | 1d5b20f | 2009-01-16 12:17:30 +0900 | [diff] [blame] | 230 | help |
| 231 | Build a kernel that runs on Xen guest domain. At this moment only |
| 232 | 16KB page size in supported. |
Isaku Yamahata | ba9cc32 | 2008-10-17 11:18:11 +0900 | [diff] [blame] | 233 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 234 | endchoice |
| 235 | |
| 236 | choice |
| 237 | prompt "Processor type" |
| 238 | default ITANIUM |
| 239 | |
| 240 | config ITANIUM |
| 241 | bool "Itanium" |
| 242 | help |
| 243 | Select your IA-64 processor type. The default is Itanium. |
| 244 | This choice is safe for all IA-64 systems, but may not perform |
| 245 | optimally on systems with, say, Itanium 2 or newer processors. |
| 246 | |
| 247 | config MCKINLEY |
| 248 | bool "Itanium 2" |
| 249 | help |
| 250 | Select this to configure for an Itanium 2 (McKinley) processor. |
| 251 | |
| 252 | endchoice |
| 253 | |
| 254 | choice |
| 255 | prompt "Kernel page size" |
| 256 | default IA64_PAGE_SIZE_16KB |
| 257 | |
| 258 | config IA64_PAGE_SIZE_4KB |
| 259 | bool "4KB" |
| 260 | help |
| 261 | This lets you select the page size of the kernel. For best IA-64 |
| 262 | performance, a page size of 8KB or 16KB is recommended. For best |
| 263 | IA-32 compatibility, a page size of 4KB should be selected (the vast |
| 264 | majority of IA-32 binaries work perfectly fine with a larger page |
| 265 | size). For Itanium 2 or newer systems, a page size of 64KB can also |
| 266 | be selected. |
| 267 | |
| 268 | 4KB For best IA-32 compatibility |
| 269 | 8KB For best IA-64 performance |
| 270 | 16KB For best IA-64 performance |
| 271 | 64KB Requires Itanium 2 or newer processor. |
| 272 | |
| 273 | If you don't know what to do, choose 16KB. |
| 274 | |
| 275 | config IA64_PAGE_SIZE_8KB |
| 276 | bool "8KB" |
| 277 | |
| 278 | config IA64_PAGE_SIZE_16KB |
| 279 | bool "16KB" |
| 280 | |
| 281 | config IA64_PAGE_SIZE_64KB |
| 282 | depends on !ITANIUM |
| 283 | bool "64KB" |
| 284 | |
| 285 | endchoice |
| 286 | |
Robin Holt | 837cd0b | 2005-11-11 09:35:43 -0600 | [diff] [blame] | 287 | choice |
| 288 | prompt "Page Table Levels" |
| 289 | default PGTABLE_3 |
| 290 | |
| 291 | config PGTABLE_3 |
| 292 | bool "3 Levels" |
| 293 | |
| 294 | config PGTABLE_4 |
| 295 | depends on !IA64_PAGE_SIZE_64KB |
| 296 | bool "4 Levels" |
| 297 | |
| 298 | endchoice |
| 299 | |
Tony Luck | 10d0aa3 | 2008-02-11 13:23:46 -0800 | [diff] [blame] | 300 | if IA64_HP_SIM |
| 301 | config HZ |
| 302 | default 32 |
| 303 | endif |
| 304 | |
| 305 | if !IA64_HP_SIM |
Christoph Lameter | b5d23e5 | 2005-06-23 00:08:27 -0700 | [diff] [blame] | 306 | source kernel/Kconfig.hz |
Tony Luck | 10d0aa3 | 2008-02-11 13:23:46 -0800 | [diff] [blame] | 307 | endif |
Christoph Lameter | b5d23e5 | 2005-06-23 00:08:27 -0700 | [diff] [blame] | 308 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 309 | config IA64_BRL_EMU |
| 310 | bool |
| 311 | depends on ITANIUM |
| 312 | default y |
| 313 | |
| 314 | # align cache-sensitive data to 128 bytes |
| 315 | config IA64_L1_CACHE_SHIFT |
| 316 | int |
| 317 | default "7" if MCKINLEY |
| 318 | default "6" if ITANIUM |
| 319 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 320 | config IA64_CYCLONE |
| 321 | bool "Cyclone (EXA) Time Source support" |
| 322 | help |
| 323 | Say Y here to enable support for IBM EXA Cyclone time source. |
| 324 | If you're unsure, answer N. |
| 325 | |
| 326 | config IOSAPIC |
| 327 | bool |
| 328 | depends on !IA64_HP_SIM |
| 329 | default y |
| 330 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 331 | config FORCE_MAX_ZONEORDER |
Bob Picco | da9577c | 2005-10-04 15:13:37 -0400 | [diff] [blame] | 332 | int "MAX_ORDER (11 - 17)" if !HUGETLB_PAGE |
| 333 | range 11 17 if !HUGETLB_PAGE |
| 334 | default "17" if HUGETLB_PAGE |
| 335 | default "11" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 336 | |
Hidetoshi Seto | b64f34c | 2008-01-29 14:27:30 +0900 | [diff] [blame] | 337 | config VIRT_CPU_ACCOUNTING |
| 338 | bool "Deterministic task and CPU time accounting" |
| 339 | default n |
| 340 | help |
| 341 | Select this option to enable more accurate task and CPU time |
| 342 | accounting. This is done by reading a CPU counter on each |
| 343 | kernel entry and exit and on transitions within the kernel |
| 344 | between system, softirq and hardirq state, so there is a |
| 345 | small performance impact. |
| 346 | If in doubt, say N here. |
| 347 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 348 | config SMP |
| 349 | bool "Symmetric multi-processing support" |
Jens Axboe | f27b433 | 2008-06-26 11:22:30 +0200 | [diff] [blame] | 350 | select USE_GENERIC_SMP_HELPERS |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 351 | help |
| 352 | This enables support for systems with more than one CPU. If you have |
| 353 | a system with only one CPU, say N. If you have a system with more |
| 354 | than one CPU, say Y. |
| 355 | |
| 356 | If you say N here, the kernel will run on single and multiprocessor |
| 357 | systems, but will use only one CPU of a multiprocessor system. If |
| 358 | you say Y here, the kernel will run on many, but not all, |
| 359 | single processor systems. On a single processor system, the kernel |
| 360 | will run faster if you say N here. |
| 361 | |
Adrian Bunk | 03502fa | 2008-02-03 15:50:21 +0200 | [diff] [blame] | 362 | See also the SMP-HOWTO available at |
| 363 | <http://www.tldp.org/docs.html#howto>. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 364 | |
| 365 | If you don't know what to do here, say N. |
| 366 | |
| 367 | config NR_CPUS |
Robin Holt | d1339df | 2008-08-02 13:29:24 -0500 | [diff] [blame] | 368 | int "Maximum number of CPUs (2-4096)" |
| 369 | range 2 4096 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 370 | depends on SMP |
Robin Holt | d1339df | 2008-08-02 13:29:24 -0500 | [diff] [blame] | 371 | default "4096" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 372 | help |
| 373 | You should set this to the number of CPUs in your system, but |
| 374 | keep in mind that a kernel compiled for, e.g., 2 CPUs will boot but |
| 375 | only use 2 CPUs on a >2 CPU system. Setting this to a value larger |
| 376 | than 64 will cause the use of a CPU mask array, causing a small |
| 377 | performance hit. |
| 378 | |
| 379 | config HOTPLUG_CPU |
| 380 | bool "Support for hot-pluggable CPUs (EXPERIMENTAL)" |
| 381 | depends on SMP && EXPERIMENTAL |
| 382 | select HOTPLUG |
| 383 | default n |
| 384 | ---help--- |
| 385 | Say Y here to experiment with turning CPUs off and on. CPUs |
| 386 | can be controlled through /sys/devices/system/cpu/cpu#. |
| 387 | Say N if you want to disable CPU hotplug. |
| 388 | |
Yasunori Goto | cc57637 | 2006-06-29 02:24:27 -0700 | [diff] [blame] | 389 | config ARCH_ENABLE_MEMORY_HOTPLUG |
| 390 | def_bool y |
| 391 | |
KAMEZAWA Hiroyuki | 0c0e619 | 2007-10-16 01:26:12 -0700 | [diff] [blame] | 392 | config ARCH_ENABLE_MEMORY_HOTREMOVE |
| 393 | def_bool y |
| 394 | |
Suresh Siddha | 7a9bdd8 | 2005-04-05 18:05:00 -0700 | [diff] [blame] | 395 | config SCHED_SMT |
| 396 | bool "SMT scheduler support" |
| 397 | depends on SMP |
Suresh Siddha | 7a9bdd8 | 2005-04-05 18:05:00 -0700 | [diff] [blame] | 398 | help |
| 399 | Improves the CPU scheduler's decision making when dealing with |
| 400 | Intel IA64 chips with MultiThreading at a cost of slightly increased |
| 401 | overhead in some places. If unsure say N here. |
| 402 | |
Ashok Raj | ff74190 | 2005-11-11 14:32:40 -0800 | [diff] [blame] | 403 | config PERMIT_BSP_REMOVE |
| 404 | bool "Support removal of Bootstrap Processor" |
| 405 | depends on HOTPLUG_CPU |
| 406 | default n |
| 407 | ---help--- |
| 408 | Say Y here if your platform SAL will support removal of BSP with HOTPLUG_CPU |
| 409 | support. |
| 410 | |
| 411 | config FORCE_CPEI_RETARGET |
| 412 | bool "Force assumption that CPEI can be re-targetted" |
| 413 | depends on PERMIT_BSP_REMOVE |
| 414 | default n |
| 415 | ---help--- |
| 416 | Say Y if you need to force the assumption that CPEI can be re-targetted to |
| 417 | any cpu in the system. This hint is available via ACPI 3.0 specifications. |
| 418 | Tiger4 systems are capable of re-directing CPEI to any CPU other than BSP. |
| 419 | This option it useful to enable this feature on older BIOS's as well. |
| 420 | You can also enable this by using boot command line option force_cpei=1. |
| 421 | |
Satyam Sharma | 0b0517a4 | 2007-08-13 23:41:45 +0530 | [diff] [blame] | 422 | source "kernel/Kconfig.preempt" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 423 | |
Dave Hansen | 3f22ab2 | 2005-06-23 00:07:43 -0700 | [diff] [blame] | 424 | source "mm/Kconfig" |
| 425 | |
Bob Picco | da9577c | 2005-10-04 15:13:37 -0400 | [diff] [blame] | 426 | config ARCH_SELECT_MEMORY_MODEL |
| 427 | def_bool y |
| 428 | |
| 429 | config ARCH_DISCONTIGMEM_ENABLE |
| 430 | def_bool y |
| 431 | help |
| 432 | Say Y to support efficient handling of discontiguous physical memory, |
| 433 | for architectures which are either NUMA (Non-Uniform Memory Access) |
| 434 | or have huge holes in the physical address space for other reasons. |
| 435 | See <file:Documentation/vm/numa> for more. |
| 436 | |
| 437 | config ARCH_FLATMEM_ENABLE |
| 438 | def_bool y |
| 439 | |
| 440 | config ARCH_SPARSEMEM_ENABLE |
| 441 | def_bool y |
| 442 | depends on ARCH_DISCONTIGMEM_ENABLE |
Christoph Lameter | ef229c5 | 2007-10-16 01:24:15 -0700 | [diff] [blame] | 443 | select SPARSEMEM_VMEMMAP_ENABLE |
Bob Picco | da9577c | 2005-10-04 15:13:37 -0400 | [diff] [blame] | 444 | |
| 445 | config ARCH_DISCONTIGMEM_DEFAULT |
| 446 | def_bool y if (IA64_SGI_SN2 || IA64_GENERIC || IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB) |
| 447 | depends on ARCH_DISCONTIGMEM_ENABLE |
| 448 | |
| 449 | config NUMA |
| 450 | bool "NUMA support" |
| 451 | depends on !IA64_HP_SIM && !FLATMEM |
| 452 | default y if IA64_SGI_SN2 |
KAMEZAWA Hiroyuki | 6c33eb3 | 2006-11-08 17:44:50 -0800 | [diff] [blame] | 453 | select ACPI_NUMA if ACPI |
Bob Picco | da9577c | 2005-10-04 15:13:37 -0400 | [diff] [blame] | 454 | help |
| 455 | Say Y to compile the kernel to support NUMA (Non-Uniform Memory |
| 456 | Access). This option is for configuring high-end multiprocessor |
| 457 | server systems. If in doubt, say N. |
| 458 | |
Yasunori Goto | c80d79d | 2006-04-10 22:53:53 -0700 | [diff] [blame] | 459 | config NODES_SHIFT |
| 460 | int "Max num nodes shift(3-10)" |
| 461 | range 3 10 |
Christoph Lameter | c57d68c | 2006-08-22 19:43:27 -0700 | [diff] [blame] | 462 | default "10" |
Yasunori Goto | c80d79d | 2006-04-10 22:53:53 -0700 | [diff] [blame] | 463 | depends on NEED_MULTIPLE_NODES |
| 464 | help |
| 465 | This option specifies the maximum number of nodes in your SSI system. |
| 466 | MAX_NUMNODES will be 2^(This value). |
| 467 | If in doubt, use the default. |
| 468 | |
Mel Gorman | 05e0caa | 2006-09-27 01:49:54 -0700 | [diff] [blame] | 469 | config ARCH_POPULATES_NODE_MAP |
| 470 | def_bool y |
| 471 | |
Bob Picco | da9577c | 2005-10-04 15:13:37 -0400 | [diff] [blame] | 472 | # VIRTUAL_MEM_MAP and FLAT_NODE_MEM_MAP are functionally equivalent. |
| 473 | # VIRTUAL_MEM_MAP has been retained for historical reasons. |
| 474 | config VIRTUAL_MEM_MAP |
| 475 | bool "Virtual mem map" |
| 476 | depends on !SPARSEMEM |
| 477 | default y if !IA64_HP_SIM |
| 478 | help |
| 479 | Say Y to compile the kernel with support for a virtual mem map. |
| 480 | This code also only takes effect if a memory hole of greater than |
| 481 | 1 Gb is found during boot. You must turn this option on if you |
| 482 | require the DISCONTIGMEM option for your machine. If you are |
| 483 | unsure, say Y. |
| 484 | |
| 485 | config HOLES_IN_ZONE |
| 486 | bool |
| 487 | default y if VIRTUAL_MEM_MAP |
| 488 | |
| 489 | config HAVE_ARCH_EARLY_PFN_TO_NID |
Tony Luck | 334f85b6 | 2009-02-19 11:22:36 -0800 | [diff] [blame] | 490 | def_bool NUMA && SPARSEMEM |
Bob Picco | da9577c | 2005-10-04 15:13:37 -0400 | [diff] [blame] | 491 | |
Yasunori Goto | 10ad400 | 2006-06-27 02:53:33 -0700 | [diff] [blame] | 492 | config HAVE_ARCH_NODEDATA_EXTENSION |
| 493 | def_bool y |
| 494 | depends on NUMA |
| 495 | |
Lee Schermerhorn | 3bccd99 | 2010-05-26 14:44:59 -0700 | [diff] [blame] | 496 | config USE_PERCPU_NUMA_NODE_ID |
| 497 | def_bool y |
| 498 | depends on NUMA |
| 499 | |
Lee Schermerhorn | fd1197f | 2010-05-26 14:45:01 -0700 | [diff] [blame] | 500 | config HAVE_MEMORYLESS_NODES |
Lee Schermerhorn | 2510600 | 2010-08-09 17:19:00 -0700 | [diff] [blame] | 501 | def_bool NUMA |
Lee Schermerhorn | fd1197f | 2010-05-26 14:45:01 -0700 | [diff] [blame] | 502 | |
KAMEZAWA Hiroyuki | 9492587 | 2009-09-22 16:45:45 -0700 | [diff] [blame] | 503 | config ARCH_PROC_KCORE_TEXT |
| 504 | def_bool y |
| 505 | depends on PROC_KCORE |
| 506 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 507 | config IA64_MCA_RECOVERY |
| 508 | tristate "MCA recovery from errors other than TLB." |
| 509 | |
| 510 | config PERFMON |
| 511 | bool "Performance monitor support" |
| 512 | help |
| 513 | Selects whether support for the IA-64 performance monitor hardware |
| 514 | is included in the kernel. This makes some kernel data-structures a |
| 515 | little bigger and slows down execution a bit, but it is generally |
| 516 | a good idea to turn this on. If you're unsure, say Y. |
| 517 | |
| 518 | config IA64_PALINFO |
| 519 | tristate "/proc/pal support" |
| 520 | help |
| 521 | If you say Y here, you are able to get PAL (Processor Abstraction |
| 522 | Layer) information in /proc/pal. This contains useful information |
| 523 | about the processors in your systems, such as cache and TLB sizes |
| 524 | and the PAL firmware version in use. |
| 525 | |
| 526 | To use this option, you have to ensure that the "/proc file system |
| 527 | support" (CONFIG_PROC_FS) is enabled, too. |
| 528 | |
Fenghua Yu | e9ef08b | 2006-12-08 16:06:01 -0800 | [diff] [blame] | 529 | config IA64_MC_ERR_INJECT |
| 530 | tristate "MC error injection support" |
| 531 | help |
Matt LaPlante | 01dd2fb | 2007-10-20 01:34:40 +0200 | [diff] [blame] | 532 | Adds support for MC error injection. If enabled, the kernel |
| 533 | will provide a sysfs interface for user applications to |
| 534 | call MC error injection PAL procedures to inject various errors. |
Fenghua Yu | e9ef08b | 2006-12-08 16:06:01 -0800 | [diff] [blame] | 535 | This is a useful tool for MCA testing. |
| 536 | |
| 537 | If you're unsure, do not select this option. |
| 538 | |
Jes Sorensen | 466575f | 2006-01-19 04:54:00 -0500 | [diff] [blame] | 539 | config SGI_SN |
| 540 | def_bool y if (IA64_SGI_SN2 || IA64_GENERIC) |
| 541 | |
David Mosberger-Tang | 2ab561a | 2006-06-21 11:19:22 -0700 | [diff] [blame] | 542 | config IA64_ESI |
| 543 | bool "ESI (Extensible SAL Interface) support" |
| 544 | help |
| 545 | If you say Y here, support is built into the kernel to |
| 546 | make ESI calls. ESI calls are used to support vendor-specific |
| 547 | firmware extensions, such as the ability to inject memory-errors |
| 548 | for test-purposes. If you're unsure, say N. |
| 549 | |
Bjorn Helgaas | 28eda5b | 2007-09-20 14:22:03 -0600 | [diff] [blame] | 550 | config IA64_HP_AML_NFW |
| 551 | bool "Support ACPI AML calls to native firmware" |
| 552 | help |
| 553 | This driver installs a global ACPI Operation Region handler for |
| 554 | region 0xA1. AML methods can use this OpRegion to call arbitrary |
| 555 | native firmware functions. The driver installs the OpRegion |
| 556 | handler if there is an HPQ5001 device or if the user supplies |
| 557 | the "force" module parameter, e.g., with the "aml_nfw.force" |
| 558 | kernel command line option. |
| 559 | |
Brent Casavant | c1311af | 2006-04-20 15:38:16 -0500 | [diff] [blame] | 560 | source "drivers/sn/Kconfig" |
| 561 | |
Zou Nan hai | a7956113 | 2006-12-07 09:51:35 -0800 | [diff] [blame] | 562 | config KEXEC |
| 563 | bool "kexec system call (EXPERIMENTAL)" |
| 564 | depends on EXPERIMENTAL && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU) |
| 565 | help |
| 566 | kexec is a system call that implements the ability to shutdown your |
| 567 | current kernel, and to start another kernel. It is like a reboot |
David Sterba | 3dde6ad | 2007-05-09 07:12:20 +0200 | [diff] [blame] | 568 | 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] | 569 | you can start any kernel with it, not just Linux. |
| 570 | |
Matt LaPlante | 01dd2fb | 2007-10-20 01:34:40 +0200 | [diff] [blame] | 571 | The name comes from the similarity to the exec system call. |
Zou Nan hai | a7956113 | 2006-12-07 09:51:35 -0800 | [diff] [blame] | 572 | |
| 573 | It is an ongoing process to be certain the hardware in a machine |
| 574 | is properly shutdown, so do not be surprised if this code does not |
| 575 | initially work for you. It may help to enable device hotplugging |
| 576 | support. As of this writing the exact hardware interface is |
| 577 | strongly in flux, so no good recommendation can be made. |
| 578 | |
| 579 | config CRASH_DUMP |
Bernhard Walle | fb86611 | 2008-06-26 14:53:11 +0200 | [diff] [blame] | 580 | bool "kernel crash dumps" |
| 581 | depends on IA64_MCA_RECOVERY && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU) |
Zou Nan hai | a7956113 | 2006-12-07 09:51:35 -0800 | [diff] [blame] | 582 | help |
| 583 | Generate crash dump after being started by kexec. |
| 584 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 585 | source "drivers/firmware/Kconfig" |
| 586 | |
| 587 | source "fs/Kconfig.binfmt" |
| 588 | |
| 589 | endmenu |
| 590 | |
Bjorn Helgaas | 1547a01 | 2008-11-06 10:53:54 -0600 | [diff] [blame] | 591 | menu "Power management and ACPI options" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 592 | |
Len Brown | eb7b6b3 | 2005-08-25 12:08:25 -0400 | [diff] [blame] | 593 | source "kernel/power/Kconfig" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 594 | |
| 595 | source "drivers/acpi/Kconfig" |
| 596 | |
Venkatesh Pallipadi | 4db8699 | 2005-07-29 16:15:00 -0700 | [diff] [blame] | 597 | if PM |
| 598 | |
| 599 | source "arch/ia64/kernel/cpufreq/Kconfig" |
| 600 | |
| 601 | endif |
| 602 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 603 | endmenu |
| 604 | |
| 605 | if !IA64_HP_SIM |
| 606 | |
| 607 | menu "Bus options (PCI, PCMCIA)" |
| 608 | |
| 609 | config PCI |
| 610 | bool "PCI support" |
| 611 | help |
Christoph Hellwig | 85f265d | 2005-08-09 13:38:00 -0700 | [diff] [blame] | 612 | Real IA-64 machines all have PCI/PCI-X/PCI Express busses. Say Y |
| 613 | here unless you are using a simulator without PCI support. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 614 | |
| 615 | config PCI_DOMAINS |
Matthew Wilcox | 36e2359 | 2007-07-10 10:54:40 -0600 | [diff] [blame] | 616 | def_bool PCI |
| 617 | |
| 618 | config PCI_SYSCALL |
| 619 | def_bool PCI |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 620 | |
Kenji Kaneshige | b7bb575 | 2006-04-28 11:50:43 +0900 | [diff] [blame] | 621 | source "drivers/pci/pcie/Kconfig" |
| 622 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 623 | source "drivers/pci/Kconfig" |
| 624 | |
| 625 | source "drivers/pci/hotplug/Kconfig" |
| 626 | |
| 627 | source "drivers/pcmcia/Kconfig" |
| 628 | |
Fenghua Yu | 62fdd76 | 2008-10-17 12:14:13 -0700 | [diff] [blame] | 629 | config DMAR |
| 630 | bool "Support for DMA Remapping Devices (EXPERIMENTAL)" |
| 631 | depends on IA64_GENERIC && ACPI && EXPERIMENTAL |
| 632 | help |
| 633 | DMA remapping (DMAR) devices support enables independent address |
| 634 | translations for Direct Memory Access (DMA) from devices. |
| 635 | These DMA remapping devices are reported via ACPI tables |
| 636 | and include PCI device scope covered by these DMA |
| 637 | remapping devices. |
| 638 | |
Kyle McMartin | 6b1ff03 | 2009-02-14 04:11:29 -0500 | [diff] [blame] | 639 | config DMAR_DEFAULT_ON |
| 640 | def_bool y |
| 641 | prompt "Enable DMA Remapping Devices by default" |
| 642 | depends on DMAR |
| 643 | help |
| 644 | Selecting this option will enable a DMAR device at boot time if |
| 645 | one is found. If this option is not selected, DMAR support can |
| 646 | be enabled by passing intel_iommu=on to the kernel. It is |
| 647 | recommended you say N here while the DMAR code remains |
| 648 | experimental. |
| 649 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 650 | endmenu |
| 651 | |
| 652 | endif |
| 653 | |
Sam Ravnborg | d5950b4 | 2005-07-11 21:03:49 -0700 | [diff] [blame] | 654 | source "net/Kconfig" |
| 655 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 656 | source "drivers/Kconfig" |
| 657 | |
Bjorn Helgaas | 1547a01 | 2008-11-06 10:53:54 -0600 | [diff] [blame] | 658 | source "arch/ia64/hp/sim/Kconfig" |
| 659 | |
Jes Sorensen | 1a4b0fc | 2006-11-10 12:27:49 -0800 | [diff] [blame] | 660 | config MSPEC |
| 661 | tristate "Memory special operations driver" |
| 662 | depends on IA64 |
| 663 | select IA64_UNCACHED_ALLOCATOR |
| 664 | help |
| 665 | If you have an ia64 and you want to enable memory special |
| 666 | operations support (formerly known as fetchop), say Y here, |
| 667 | otherwise say N. |
| 668 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 669 | source "fs/Kconfig" |
| 670 | |
Bjorn Helgaas | 1547a01 | 2008-11-06 10:53:54 -0600 | [diff] [blame] | 671 | source "arch/ia64/Kconfig.debug" |
| 672 | |
| 673 | source "security/Kconfig" |
| 674 | |
| 675 | source "crypto/Kconfig" |
| 676 | |
Xiantao Zhang | b693919 | 2008-03-28 14:58:47 +0800 | [diff] [blame] | 677 | source "arch/ia64/kvm/Kconfig" |
| 678 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 679 | source "lib/Kconfig" |
| 680 | |
| 681 | # |
| 682 | # Use the generic interrupt handling code in kernel/irq/: |
| 683 | # |
| 684 | config GENERIC_HARDIRQS |
Tony Luck | 5d4bff9 | 2010-09-27 13:58:14 -0700 | [diff] [blame] | 685 | def_bool y |
| 686 | |
| 687 | config GENERIC_HARDIRQS_NO__DO_IRQ |
| 688 | def_bool y |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 689 | |
| 690 | config GENERIC_IRQ_PROBE |
| 691 | bool |
| 692 | default y |
| 693 | |
Ashok Raj | 54d5d42 | 2005-09-06 15:16:15 -0700 | [diff] [blame] | 694 | config GENERIC_PENDING_IRQ |
| 695 | bool |
| 696 | depends on GENERIC_HARDIRQS && SMP |
| 697 | default y |
| 698 | |
Ingo Molnar | 0d7012a | 2006-06-29 02:24:43 -0700 | [diff] [blame] | 699 | config IRQ_PER_CPU |
| 700 | bool |
| 701 | default y |
| 702 | |
FUJITA Tomonori | b34eb53 | 2008-03-28 14:27:03 -0700 | [diff] [blame] | 703 | config IOMMU_HELPER |
FUJITA Tomonori | a852250 | 2008-04-29 00:59:36 -0700 | [diff] [blame] | 704 | def_bool (IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB || IA64_GENERIC || SWIOTLB) |
Joerg Roedel | 1aaf118 | 2008-11-26 17:25:13 +0100 | [diff] [blame] | 705 | |
| 706 | config IOMMU_API |
| 707 | def_bool (DMAR) |