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Commit | Line | Data |
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4d66bcc7 KS |
1 | config PGTABLE_LEVELS |
2 | int "Page Table Levels" if !IA64_PAGE_SIZE_64KB | |
3 | range 3 4 if !IA64_PAGE_SIZE_64KB | |
4 | default 3 | |
5 | ||
1da177e4 LT |
6 | source "init/Kconfig" |
7 | ||
dc52ddc0 MH |
8 | source "kernel/Kconfig.freezer" |
9 | ||
1da177e4 LT |
10 | menu "Processor type and features" |
11 | ||
12 | config IA64 | |
13 | bool | |
468bcf08 | 14 | select ARCH_MIGHT_HAVE_PC_PARPORT |
bbc4e596 | 15 | select ARCH_MIGHT_HAVE_PC_SERIO |
06f87adf LB |
16 | select PCI if (!IA64_HP_SIM) |
17 | select ACPI if (!IA64_HP_SIM) | |
6e0a0ea1 | 18 | select ACPI_SYSTEM_POWER_STATES_SUPPORT if ACPI |
46ba51ea | 19 | select ARCH_MIGHT_HAVE_ACPI_PDC if ACPI |
0773a6cf | 20 | select HAVE_UNSTABLE_SCHED_CLOCK |
ec7748b5 | 21 | select HAVE_IDE |
42d4b839 | 22 | select HAVE_OPROFILE |
3f550096 | 23 | select HAVE_KPROBES |
9edddaa2 | 24 | select HAVE_KRETPROBES |
a14a07b8 SL |
25 | select HAVE_FTRACE_MCOUNT_RECORD |
26 | select HAVE_DYNAMIC_FTRACE if (!ITANIUM) | |
d3e75ff1 | 27 | select HAVE_FUNCTION_TRACER |
6035d9db | 28 | select TTY |
9690ad03 | 29 | select HAVE_ARCH_TRACEHOOK |
99162195 | 30 | select HAVE_DMA_API_DEBUG |
98e4ae8a TH |
31 | select HAVE_MEMBLOCK |
32 | select HAVE_MEMBLOCK_NODE_MAP | |
b952741c | 33 | select HAVE_VIRT_CPU_ACCOUNTING |
308c09f1 | 34 | select ARCH_HAS_SG_CHAIN |
4febd95a | 35 | select VIRT_TO_BUS |
98e4ae8a | 36 | select ARCH_DISCARD_MEMBLOCK |
c5e66129 TG |
37 | select GENERIC_IRQ_PROBE |
38 | select GENERIC_PENDING_IRQ if SMP | |
e3d78122 | 39 | select GENERIC_IRQ_SHOW |
4debd723 | 40 | select GENERIC_IRQ_LEGACY |
badc1446 | 41 | select ARCH_WANT_OPTIONAL_GPIOLIB |
df013ffb | 42 | select ARCH_HAVE_NMI_SAFE_CMPXCHG |
4673ca8e | 43 | select GENERIC_IOMAP |
13583bf1 | 44 | select GENERIC_SMP_IDLE_THREAD |
a6359d1e | 45 | select ARCH_INIT_TASK |
f5e10287 TG |
46 | select ARCH_TASK_STRUCT_ALLOCATOR |
47 | select ARCH_THREAD_INFO_ALLOCATOR | |
21b19710 | 48 | select ARCH_CLOCKSOURCE_DATA |
70639421 | 49 | select GENERIC_TIME_VSYSCALL_OLD |
b6fca725 | 50 | select SYSCTL_ARCH_UNALIGN_NO_WARN |
786d35d4 DH |
51 | select HAVE_MOD_ARCH_SPECIFIC |
52 | select MODULES_USE_ELF_RELA | |
71c7356f | 53 | select ARCH_USE_CMPXCHG_LOCKREF |
7a017721 | 54 | select HAVE_ARCH_AUDITSYSCALL |
1da177e4 LT |
55 | default y |
56 | help | |
57 | The Itanium Processor Family is Intel's 64-bit successor to | |
58 | the 32-bit X86 line. The IA-64 Linux project has a home | |
59 | page at <http://www.linuxia64.org/> and a mailing list at | |
60 | <linux-ia64@vger.kernel.org>. | |
61 | ||
62 | config 64BIT | |
63 | bool | |
9f271d57 | 64 | select ATA_NONSTANDARD if ATA |
1da177e4 LT |
65 | default y |
66 | ||
66701b14 | 67 | config ZONE_DMA |
09ae1f58 CL |
68 | def_bool y |
69 | depends on !IA64_SGI_SN2 | |
66701b14 | 70 | |
2bd62a40 CL |
71 | config QUICKLIST |
72 | bool | |
73 | default y | |
74 | ||
1da177e4 LT |
75 | config MMU |
76 | bool | |
77 | default y | |
78 | ||
e33621a2 FT |
79 | config ARCH_DMA_ADDR_T_64BIT |
80 | def_bool y | |
81 | ||
66ed5ef8 FT |
82 | config NEED_DMA_MAP_STATE |
83 | def_bool y | |
84 | ||
18e98307 FT |
85 | config NEED_SG_DMA_LENGTH |
86 | def_bool y | |
87 | ||
6c654b5f JL |
88 | config SWIOTLB |
89 | bool | |
6c654b5f | 90 | |
85718fae TL |
91 | config STACKTRACE_SUPPORT |
92 | def_bool y | |
93 | ||
95c354fe | 94 | config GENERIC_LOCKBREAK |
2c86963b | 95 | def_bool n |
95c354fe | 96 | |
1da177e4 LT |
97 | config RWSEM_XCHGADD_ALGORITHM |
98 | bool | |
99 | default y | |
100 | ||
d9c23400 MG |
101 | config HUGETLB_PAGE_SIZE_VARIABLE |
102 | bool | |
103 | depends on HUGETLB_PAGE | |
104 | default y | |
105 | ||
1da177e4 LT |
106 | config GENERIC_CALIBRATE_DELAY |
107 | bool | |
108 | default y | |
109 | ||
988c388a | 110 | config HAVE_SETUP_PER_CPU_AREA |
b32ef636 | 111 | def_bool y |
112 | ||
3ed3bce8 MD |
113 | config DMI |
114 | bool | |
115 | default y | |
cf074402 | 116 | select DMI_SCAN_MACHINE_NON_EFI_FALLBACK |
3ed3bce8 | 117 | |
1da177e4 LT |
118 | config EFI |
119 | bool | |
a614e192 | 120 | select UCS2_STRING |
1da177e4 LT |
121 | default y |
122 | ||
ae1e9130 | 123 | config SCHED_OMIT_FRAME_POINTER |
7d12e522 AB |
124 | bool |
125 | default y | |
126 | ||
f14f75b8 JS |
127 | config IA64_UNCACHED_ALLOCATOR |
128 | bool | |
129 | select GENERIC_ALLOCATOR | |
130 | ||
46cf98cd VP |
131 | config ARCH_USES_PG_UNCACHED |
132 | def_bool y | |
133 | depends on IA64_UNCACHED_ALLOCATOR | |
134 | ||
e65e1fc2 AV |
135 | config AUDIT_ARCH |
136 | bool | |
137 | default y | |
138 | ||
1da177e4 LT |
139 | choice |
140 | prompt "System type" | |
141 | default IA64_GENERIC | |
142 | ||
143 | config IA64_GENERIC | |
144 | bool "generic" | |
145 | select NUMA | |
146 | select ACPI_NUMA | |
d1598e05 | 147 | select SWIOTLB |
62fdd767 | 148 | select PCI_MSI |
1da177e4 LT |
149 | help |
150 | This selects the system type of your hardware. A "generic" kernel | |
151 | will run on any supported IA-64 system. However, if you configure | |
152 | a kernel for your specific system, it will be faster and smaller. | |
153 | ||
154 | generic For any supported IA-64 system | |
155 | DIG-compliant For DIG ("Developer's Interface Guide") compliant systems | |
62fdd767 | 156 | DIG+Intel+IOMMU For DIG systems with Intel IOMMU |
1da177e4 LT |
157 | HP-zx1/sx1000 For HP systems |
158 | HP-zx1/sx1000+swiotlb For HP systems with (broken) DMA-constrained devices. | |
159 | SGI-SN2 For SGI Altix systems | |
22246614 | 160 | SGI-UV For SGI UV systems |
1da177e4 LT |
161 | Ski-simulator For the HP simulator <http://www.hpl.hp.com/research/linux/ski/> |
162 | ||
163 | If you don't know what to do, choose "generic". | |
164 | ||
165 | config IA64_DIG | |
166 | bool "DIG-compliant" | |
d1598e05 | 167 | select SWIOTLB |
1da177e4 | 168 | |
62fdd767 FY |
169 | config IA64_DIG_VTD |
170 | bool "DIG+Intel+IOMMU" | |
96edc754 | 171 | select INTEL_IOMMU |
62fdd767 FY |
172 | select PCI_MSI |
173 | ||
1da177e4 LT |
174 | config IA64_HP_ZX1 |
175 | bool "HP-zx1/sx1000" | |
176 | help | |
177 | Build a kernel that runs on HP zx1 and sx1000 systems. This adds | |
178 | support for the HP I/O MMU. | |
179 | ||
180 | config IA64_HP_ZX1_SWIOTLB | |
181 | bool "HP-zx1/sx1000 with software I/O TLB" | |
d1598e05 | 182 | select SWIOTLB |
1da177e4 LT |
183 | help |
184 | Build a kernel that runs on HP zx1 and sx1000 systems even when they | |
185 | have broken PCI devices which cannot DMA to full 32 bits. Apart | |
186 | from support for the HP I/O MMU, this includes support for the software | |
187 | I/O TLB, which allows supporting the broken devices at the expense of | |
188 | wasting some kernel memory (about 2MB by default). | |
189 | ||
190 | config IA64_SGI_SN2 | |
191 | bool "SGI-SN2" | |
bd3be240 JS |
192 | select NUMA |
193 | select ACPI_NUMA | |
1da177e4 LT |
194 | help |
195 | Selecting this option will optimize the kernel for use on sn2 based | |
196 | systems, but the resulting kernel binary will not run on other | |
197 | types of ia64 systems. If you have an SGI Altix system, it's safe | |
198 | to select this option. If in doubt, select ia64 generic support | |
199 | instead. | |
200 | ||
3351ab9b JS |
201 | config IA64_SGI_UV |
202 | bool "SGI-UV" | |
22246614 JS |
203 | select NUMA |
204 | select ACPI_NUMA | |
205 | select SWIOTLB | |
206 | help | |
207 | Selecting this option will optimize the kernel for use on UV based | |
208 | systems, but the resulting kernel binary will not run on other | |
209 | types of ia64 systems. If you have an SGI UV system, it's safe | |
210 | to select this option. If in doubt, select ia64 generic support | |
211 | instead. | |
212 | ||
1da177e4 LT |
213 | config IA64_HP_SIM |
214 | bool "Ski-simulator" | |
d1598e05 | 215 | select SWIOTLB |
1b3e3aa6 | 216 | depends on !PM |
1da177e4 LT |
217 | |
218 | endchoice | |
219 | ||
220 | choice | |
221 | prompt "Processor type" | |
222 | default ITANIUM | |
223 | ||
224 | config ITANIUM | |
225 | bool "Itanium" | |
226 | help | |
227 | Select your IA-64 processor type. The default is Itanium. | |
228 | This choice is safe for all IA-64 systems, but may not perform | |
229 | optimally on systems with, say, Itanium 2 or newer processors. | |
230 | ||
231 | config MCKINLEY | |
232 | bool "Itanium 2" | |
233 | help | |
234 | Select this to configure for an Itanium 2 (McKinley) processor. | |
235 | ||
236 | endchoice | |
237 | ||
238 | choice | |
239 | prompt "Kernel page size" | |
240 | default IA64_PAGE_SIZE_16KB | |
241 | ||
242 | config IA64_PAGE_SIZE_4KB | |
243 | bool "4KB" | |
244 | help | |
245 | This lets you select the page size of the kernel. For best IA-64 | |
246 | performance, a page size of 8KB or 16KB is recommended. For best | |
247 | IA-32 compatibility, a page size of 4KB should be selected (the vast | |
248 | majority of IA-32 binaries work perfectly fine with a larger page | |
249 | size). For Itanium 2 or newer systems, a page size of 64KB can also | |
250 | be selected. | |
251 | ||
252 | 4KB For best IA-32 compatibility | |
253 | 8KB For best IA-64 performance | |
254 | 16KB For best IA-64 performance | |
255 | 64KB Requires Itanium 2 or newer processor. | |
256 | ||
257 | If you don't know what to do, choose 16KB. | |
258 | ||
259 | config IA64_PAGE_SIZE_8KB | |
260 | bool "8KB" | |
261 | ||
262 | config IA64_PAGE_SIZE_16KB | |
263 | bool "16KB" | |
264 | ||
265 | config IA64_PAGE_SIZE_64KB | |
266 | depends on !ITANIUM | |
267 | bool "64KB" | |
268 | ||
269 | endchoice | |
270 | ||
10d0aa3c TL |
271 | if IA64_HP_SIM |
272 | config HZ | |
273 | default 32 | |
274 | endif | |
275 | ||
276 | if !IA64_HP_SIM | |
b5d23e5b | 277 | source kernel/Kconfig.hz |
10d0aa3c | 278 | endif |
b5d23e5b | 279 | |
1da177e4 LT |
280 | config IA64_BRL_EMU |
281 | bool | |
282 | depends on ITANIUM | |
283 | default y | |
284 | ||
285 | # align cache-sensitive data to 128 bytes | |
286 | config IA64_L1_CACHE_SHIFT | |
287 | int | |
288 | default "7" if MCKINLEY | |
289 | default "6" if ITANIUM | |
290 | ||
1da177e4 LT |
291 | config IA64_CYCLONE |
292 | bool "Cyclone (EXA) Time Source support" | |
293 | help | |
294 | Say Y here to enable support for IBM EXA Cyclone time source. | |
295 | If you're unsure, answer N. | |
296 | ||
297 | config IOSAPIC | |
298 | bool | |
299 | depends on !IA64_HP_SIM | |
300 | default y | |
301 | ||
1da177e4 | 302 | config FORCE_MAX_ZONEORDER |
da9577c5 BP |
303 | int "MAX_ORDER (11 - 17)" if !HUGETLB_PAGE |
304 | range 11 17 if !HUGETLB_PAGE | |
305 | default "17" if HUGETLB_PAGE | |
306 | default "11" | |
1da177e4 LT |
307 | |
308 | config SMP | |
309 | bool "Symmetric multi-processing support" | |
310 | help | |
311 | This enables support for systems with more than one CPU. If you have | |
312 | a system with only one CPU, say N. If you have a system with more | |
313 | than one CPU, say Y. | |
314 | ||
315 | If you say N here, the kernel will run on single and multiprocessor | |
316 | systems, but will use only one CPU of a multiprocessor system. If | |
317 | you say Y here, the kernel will run on many, but not all, | |
318 | single processor systems. On a single processor system, the kernel | |
319 | will run faster if you say N here. | |
320 | ||
03502faa AB |
321 | See also the SMP-HOWTO available at |
322 | <http://www.tldp.org/docs.html#howto>. | |
1da177e4 LT |
323 | |
324 | If you don't know what to do here, say N. | |
325 | ||
326 | config NR_CPUS | |
d1339df1 RH |
327 | int "Maximum number of CPUs (2-4096)" |
328 | range 2 4096 | |
1da177e4 | 329 | depends on SMP |
d1339df1 | 330 | default "4096" |
1da177e4 LT |
331 | help |
332 | You should set this to the number of CPUs in your system, but | |
333 | keep in mind that a kernel compiled for, e.g., 2 CPUs will boot but | |
334 | only use 2 CPUs on a >2 CPU system. Setting this to a value larger | |
335 | than 64 will cause the use of a CPU mask array, causing a small | |
336 | performance hit. | |
337 | ||
338 | config HOTPLUG_CPU | |
48a9240c KC |
339 | bool "Support for hot-pluggable CPUs" |
340 | depends on SMP | |
1da177e4 LT |
341 | default n |
342 | ---help--- | |
343 | Say Y here to experiment with turning CPUs off and on. CPUs | |
344 | can be controlled through /sys/devices/system/cpu/cpu#. | |
345 | Say N if you want to disable CPU hotplug. | |
346 | ||
cc57637b YG |
347 | config ARCH_ENABLE_MEMORY_HOTPLUG |
348 | def_bool y | |
349 | ||
0c0e6195 KH |
350 | config ARCH_ENABLE_MEMORY_HOTREMOVE |
351 | def_bool y | |
352 | ||
7a9bdd88 SS |
353 | config SCHED_SMT |
354 | bool "SMT scheduler support" | |
355 | depends on SMP | |
7a9bdd88 SS |
356 | help |
357 | Improves the CPU scheduler's decision making when dealing with | |
358 | Intel IA64 chips with MultiThreading at a cost of slightly increased | |
359 | overhead in some places. If unsure say N here. | |
360 | ||
ff741906 AR |
361 | config PERMIT_BSP_REMOVE |
362 | bool "Support removal of Bootstrap Processor" | |
363 | depends on HOTPLUG_CPU | |
364 | default n | |
365 | ---help--- | |
366 | Say Y here if your platform SAL will support removal of BSP with HOTPLUG_CPU | |
367 | support. | |
368 | ||
369 | config FORCE_CPEI_RETARGET | |
25985edc | 370 | bool "Force assumption that CPEI can be re-targeted" |
ff741906 AR |
371 | depends on PERMIT_BSP_REMOVE |
372 | default n | |
373 | ---help--- | |
25985edc | 374 | Say Y if you need to force the assumption that CPEI can be re-targeted to |
ff741906 AR |
375 | any cpu in the system. This hint is available via ACPI 3.0 specifications. |
376 | Tiger4 systems are capable of re-directing CPEI to any CPU other than BSP. | |
377 | This option it useful to enable this feature on older BIOS's as well. | |
378 | You can also enable this by using boot command line option force_cpei=1. | |
379 | ||
0b0517a4 | 380 | source "kernel/Kconfig.preempt" |
1da177e4 | 381 | |
3f22ab27 DH |
382 | source "mm/Kconfig" |
383 | ||
da9577c5 BP |
384 | config ARCH_SELECT_MEMORY_MODEL |
385 | def_bool y | |
386 | ||
387 | config ARCH_DISCONTIGMEM_ENABLE | |
388 | def_bool y | |
389 | help | |
390 | Say Y to support efficient handling of discontiguous physical memory, | |
391 | for architectures which are either NUMA (Non-Uniform Memory Access) | |
392 | or have huge holes in the physical address space for other reasons. | |
393 | See <file:Documentation/vm/numa> for more. | |
394 | ||
395 | config ARCH_FLATMEM_ENABLE | |
396 | def_bool y | |
397 | ||
398 | config ARCH_SPARSEMEM_ENABLE | |
399 | def_bool y | |
400 | depends on ARCH_DISCONTIGMEM_ENABLE | |
ef229c5a | 401 | select SPARSEMEM_VMEMMAP_ENABLE |
da9577c5 BP |
402 | |
403 | config ARCH_DISCONTIGMEM_DEFAULT | |
404 | def_bool y if (IA64_SGI_SN2 || IA64_GENERIC || IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB) | |
405 | depends on ARCH_DISCONTIGMEM_ENABLE | |
406 | ||
407 | config NUMA | |
408 | bool "NUMA support" | |
409 | depends on !IA64_HP_SIM && !FLATMEM | |
410 | default y if IA64_SGI_SN2 | |
6c33eb39 | 411 | select ACPI_NUMA if ACPI |
da9577c5 BP |
412 | help |
413 | Say Y to compile the kernel to support NUMA (Non-Uniform Memory | |
414 | Access). This option is for configuring high-end multiprocessor | |
415 | server systems. If in doubt, say N. | |
416 | ||
c80d79d7 YG |
417 | config NODES_SHIFT |
418 | int "Max num nodes shift(3-10)" | |
419 | range 3 10 | |
c57d68ca | 420 | default "10" |
c80d79d7 YG |
421 | depends on NEED_MULTIPLE_NODES |
422 | help | |
423 | This option specifies the maximum number of nodes in your SSI system. | |
424 | MAX_NUMNODES will be 2^(This value). | |
425 | If in doubt, use the default. | |
426 | ||
da9577c5 BP |
427 | # VIRTUAL_MEM_MAP and FLAT_NODE_MEM_MAP are functionally equivalent. |
428 | # VIRTUAL_MEM_MAP has been retained for historical reasons. | |
429 | config VIRTUAL_MEM_MAP | |
430 | bool "Virtual mem map" | |
431 | depends on !SPARSEMEM | |
432 | default y if !IA64_HP_SIM | |
433 | help | |
434 | Say Y to compile the kernel with support for a virtual mem map. | |
435 | This code also only takes effect if a memory hole of greater than | |
436 | 1 Gb is found during boot. You must turn this option on if you | |
437 | require the DISCONTIGMEM option for your machine. If you are | |
438 | unsure, say Y. | |
439 | ||
440 | config HOLES_IN_ZONE | |
441 | bool | |
442 | default y if VIRTUAL_MEM_MAP | |
443 | ||
444 | config HAVE_ARCH_EARLY_PFN_TO_NID | |
334f85b6 | 445 | def_bool NUMA && SPARSEMEM |
da9577c5 | 446 | |
10ad400b YG |
447 | config HAVE_ARCH_NODEDATA_EXTENSION |
448 | def_bool y | |
449 | depends on NUMA | |
450 | ||
3bccd996 LS |
451 | config USE_PERCPU_NUMA_NODE_ID |
452 | def_bool y | |
453 | depends on NUMA | |
454 | ||
fd1197f1 | 455 | config HAVE_MEMORYLESS_NODES |
25106000 | 456 | def_bool NUMA |
fd1197f1 | 457 | |
9492587c KH |
458 | config ARCH_PROC_KCORE_TEXT |
459 | def_bool y | |
460 | depends on PROC_KCORE | |
461 | ||
1da177e4 LT |
462 | config IA64_MCA_RECOVERY |
463 | tristate "MCA recovery from errors other than TLB." | |
464 | ||
465 | config PERFMON | |
466 | bool "Performance monitor support" | |
467 | help | |
468 | Selects whether support for the IA-64 performance monitor hardware | |
469 | is included in the kernel. This makes some kernel data-structures a | |
470 | little bigger and slows down execution a bit, but it is generally | |
471 | a good idea to turn this on. If you're unsure, say Y. | |
472 | ||
473 | config IA64_PALINFO | |
474 | tristate "/proc/pal support" | |
475 | help | |
476 | If you say Y here, you are able to get PAL (Processor Abstraction | |
477 | Layer) information in /proc/pal. This contains useful information | |
478 | about the processors in your systems, such as cache and TLB sizes | |
479 | and the PAL firmware version in use. | |
480 | ||
481 | To use this option, you have to ensure that the "/proc file system | |
482 | support" (CONFIG_PROC_FS) is enabled, too. | |
483 | ||
e9ef08bd FY |
484 | config IA64_MC_ERR_INJECT |
485 | tristate "MC error injection support" | |
486 | help | |
01dd2fbf ML |
487 | Adds support for MC error injection. If enabled, the kernel |
488 | will provide a sysfs interface for user applications to | |
489 | call MC error injection PAL procedures to inject various errors. | |
e9ef08bd FY |
490 | This is a useful tool for MCA testing. |
491 | ||
492 | If you're unsure, do not select this option. | |
493 | ||
466575f4 JS |
494 | config SGI_SN |
495 | def_bool y if (IA64_SGI_SN2 || IA64_GENERIC) | |
496 | ||
2ab561a1 DMT |
497 | config IA64_ESI |
498 | bool "ESI (Extensible SAL Interface) support" | |
499 | help | |
500 | If you say Y here, support is built into the kernel to | |
501 | make ESI calls. ESI calls are used to support vendor-specific | |
502 | firmware extensions, such as the ability to inject memory-errors | |
503 | for test-purposes. If you're unsure, say N. | |
504 | ||
28eda5b8 BH |
505 | config IA64_HP_AML_NFW |
506 | bool "Support ACPI AML calls to native firmware" | |
507 | help | |
508 | This driver installs a global ACPI Operation Region handler for | |
509 | region 0xA1. AML methods can use this OpRegion to call arbitrary | |
510 | native firmware functions. The driver installs the OpRegion | |
511 | handler if there is an HPQ5001 device or if the user supplies | |
512 | the "force" module parameter, e.g., with the "aml_nfw.force" | |
513 | kernel command line option. | |
514 | ||
c1311af1 BC |
515 | source "drivers/sn/Kconfig" |
516 | ||
a7956113 | 517 | config KEXEC |
48a9240c KC |
518 | bool "kexec system call" |
519 | depends on !IA64_HP_SIM && (!SMP || HOTPLUG_CPU) | |
2965faa5 | 520 | select KEXEC_CORE |
a7956113 ZN |
521 | help |
522 | kexec is a system call that implements the ability to shutdown your | |
523 | current kernel, and to start another kernel. It is like a reboot | |
3dde6ad8 | 524 | but it is independent of the system firmware. And like a reboot |
a7956113 ZN |
525 | you can start any kernel with it, not just Linux. |
526 | ||
01dd2fbf | 527 | The name comes from the similarity to the exec system call. |
a7956113 ZN |
528 | |
529 | It is an ongoing process to be certain the hardware in a machine | |
530 | is properly shutdown, so do not be surprised if this code does not | |
bf220695 GU |
531 | initially work for you. As of this writing the exact hardware |
532 | interface is strongly in flux, so no good recommendation can be | |
533 | made. | |
a7956113 ZN |
534 | |
535 | config CRASH_DUMP | |
fb86611f BW |
536 | bool "kernel crash dumps" |
537 | depends on IA64_MCA_RECOVERY && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU) | |
a7956113 ZN |
538 | help |
539 | Generate crash dump after being started by kexec. | |
540 | ||
1da177e4 LT |
541 | source "drivers/firmware/Kconfig" |
542 | ||
543 | source "fs/Kconfig.binfmt" | |
544 | ||
545 | endmenu | |
546 | ||
1547a012 | 547 | menu "Power management and ACPI options" |
1da177e4 | 548 | |
eb7b6b32 | 549 | source "kernel/power/Kconfig" |
1da177e4 LT |
550 | |
551 | source "drivers/acpi/Kconfig" | |
552 | ||
4db8699b | 553 | if PM |
ab423e43 VK |
554 | menu "CPU Frequency scaling" |
555 | source "drivers/cpufreq/Kconfig" | |
556 | endmenu | |
4db8699b VP |
557 | endif |
558 | ||
1da177e4 LT |
559 | endmenu |
560 | ||
561 | if !IA64_HP_SIM | |
562 | ||
563 | menu "Bus options (PCI, PCMCIA)" | |
564 | ||
565 | config PCI | |
566 | bool "PCI support" | |
567 | help | |
85f265d8 CH |
568 | Real IA-64 machines all have PCI/PCI-X/PCI Express busses. Say Y |
569 | here unless you are using a simulator without PCI support. | |
1da177e4 LT |
570 | |
571 | config PCI_DOMAINS | |
36e23590 MW |
572 | def_bool PCI |
573 | ||
574 | config PCI_SYSCALL | |
575 | def_bool PCI | |
1da177e4 LT |
576 | |
577 | source "drivers/pci/Kconfig" | |
578 | ||
1da177e4 LT |
579 | source "drivers/pcmcia/Kconfig" |
580 | ||
581 | endmenu | |
582 | ||
583 | endif | |
584 | ||
d5950b43 SR |
585 | source "net/Kconfig" |
586 | ||
1da177e4 LT |
587 | source "drivers/Kconfig" |
588 | ||
1547a012 BH |
589 | source "arch/ia64/hp/sim/Kconfig" |
590 | ||
1a4b0fc5 JS |
591 | config MSPEC |
592 | tristate "Memory special operations driver" | |
593 | depends on IA64 | |
594 | select IA64_UNCACHED_ALLOCATOR | |
595 | help | |
596 | If you have an ia64 and you want to enable memory special | |
597 | operations support (formerly known as fetchop), say Y here, | |
598 | otherwise say N. | |
599 | ||
1da177e4 LT |
600 | source "fs/Kconfig" |
601 | ||
1547a012 BH |
602 | source "arch/ia64/Kconfig.debug" |
603 | ||
604 | source "security/Kconfig" | |
605 | ||
606 | source "crypto/Kconfig" | |
607 | ||
1da177e4 LT |
608 | source "lib/Kconfig" |
609 | ||
b34eb53c | 610 | config IOMMU_HELPER |
a8522509 | 611 | def_bool (IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB || IA64_GENERIC || SWIOTLB) |