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Linus Torvalds1da177e2005-04-16 15:20:36 -07001source "init/Kconfig"
2
Matt Helsleydc52ddc2008-10-18 20:27:21 -07003source "kernel/Kconfig.freezer"
4
Linus Torvalds1da177e2005-04-16 15:20:36 -07005menu "Processor type and features"
6
7config IA64
8 bool
Len Brown06f87ad2007-01-26 00:38:53 -05009 select PCI if (!IA64_HP_SIM)
10 select ACPI if (!IA64_HP_SIM)
Len Brown8140a902007-03-16 22:00:43 -040011 select PM if (!IA64_HP_SIM)
Dan Williamsf282b972007-04-18 18:46:20 +100012 select ARCH_SUPPORTS_MSI
Tony Luck0773a6c2009-01-15 10:29:17 -080013 select HAVE_UNSTABLE_SCHED_CLOCK
Sam Ravnborgec7748b2008-02-09 10:46:40 +010014 select HAVE_IDE
Mathieu Desnoyers42d4b832008-02-02 15:10:34 -050015 select HAVE_OPROFILE
Mathieu Desnoyers3f550092008-02-02 15:10:35 -050016 select HAVE_KPROBES
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -080017 select HAVE_KRETPROBES
Shaohua Lia14a07b2009-01-09 11:29:49 +080018 select HAVE_FTRACE_MCOUNT_RECORD
19 select HAVE_DYNAMIC_FTRACE if (!ITANIUM)
Shaohua Lid3e75ff2009-01-09 11:29:46 +080020 select HAVE_FUNCTION_TRACER
Arthur Kepner74bc7ce2008-04-29 01:00:30 -070021 select HAVE_DMA_ATTRS
Xiantao Zhangb6939192008-03-28 14:58:47 +080022 select HAVE_KVM
Shaohua Li9690ad02008-10-01 13:57:14 -070023 select HAVE_ARCH_TRACEHOOK
FUJITA Tomonori99162192009-06-17 16:28:14 -070024 select HAVE_DMA_API_DEBUG
Linus Torvalds1da177e2005-04-16 15:20:36 -070025 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
32config 64BIT
33 bool
Zhang, Yanmin9f271d52007-02-09 11:29:51 +080034 select ATA_NONSTANDARD if ATA
Linus Torvalds1da177e2005-04-16 15:20:36 -070035 default y
36
Christoph Lameter66701b12007-02-10 01:43:09 -080037config ZONE_DMA
Christoph Lameter09ae1f52007-02-10 01:43:11 -080038 def_bool y
39 depends on !IA64_SGI_SN2
Christoph Lameter66701b12007-02-10 01:43:09 -080040
Christoph Lameter2bd62a42007-05-10 22:42:53 -070041config QUICKLIST
42 bool
43 default y
44
Linus Torvalds1da177e2005-04-16 15:20:36 -070045config MMU
46 bool
47 default y
48
FUJITA Tomonorie33621a2010-10-01 14:15:27 -070049config ARCH_DMA_ADDR_T_64BIT
50 def_bool y
51
FUJITA Tomonori66ed5ef2010-03-10 15:23:25 -080052config NEED_DMA_MAP_STATE
53 def_bool y
54
FUJITA Tomonori18e98302010-05-26 14:44:32 -070055config NEED_SG_DMA_LENGTH
56 def_bool y
57
John W. Linville6c654b52005-09-29 14:42:42 -070058config SWIOTLB
59 bool
John W. Linville6c654b52005-09-29 14:42:42 -070060
Tony Luck85718fa2010-09-23 13:52:07 -070061config STACKTRACE_SUPPORT
62 def_bool y
63
Nick Piggin95c354f2008-01-30 13:31:20 +010064config GENERIC_LOCKBREAK
Tony Luck2c869632009-09-25 08:42:16 -070065 def_bool n
Nick Piggin95c354f2008-01-30 13:31:20 +010066
Linus Torvalds1da177e2005-04-16 15:20:36 -070067config RWSEM_XCHGADD_ALGORITHM
68 bool
69 default y
70
Mel Gormand9c23402007-10-16 01:26:01 -070071config HUGETLB_PAGE_SIZE_VARIABLE
72 bool
73 depends on HUGETLB_PAGE
74 default y
75
Akinobu Mita2875aef2006-03-26 01:39:25 -080076config GENERIC_FIND_NEXT_BIT
77 bool
78 default y
79
Linus Torvalds1da177e2005-04-16 15:20:36 -070080config GENERIC_CALIBRATE_DELAY
81 bool
82 default y
83
Tony Luck0aa366f2007-07-20 11:22:30 -070084config GENERIC_TIME_VSYSCALL
Linus Torvalds1da177e2005-04-16 15:20:36 -070085 bool
86 default y
87
travis@sgi.com988c3882008-01-30 23:27:58 +010088config HAVE_SETUP_PER_CPU_AREA
travis@sgi.comb32ef632008-01-30 13:32:51 +010089 def_bool y
90
Matt Domsch3ed3bce2006-03-26 01:37:03 -080091config DMI
92 bool
93 default y
94
Linus Torvalds1da177e2005-04-16 15:20:36 -070095config EFI
96 bool
97 default y
98
99config GENERIC_IOMAP
100 bool
101 default y
102
Ingo Molnarae1e9132008-11-11 09:05:16 +0100103config SCHED_OMIT_FRAME_POINTER
Anton Blanchard7d12e522005-05-05 16:15:11 -0700104 bool
105 default y
106
Jes Sorensenf14f75b2005-06-21 17:15:02 -0700107config IA64_UNCACHED_ALLOCATOR
108 bool
109 select GENERIC_ALLOCATOR
110
Venkatesh Pallipadi46cf98c2009-07-10 09:57:37 -0700111config ARCH_USES_PG_UNCACHED
112 def_bool y
113 depends on IA64_UNCACHED_ALLOCATOR
114
Al Viroe65e1fc2006-09-12 03:04:40 -0400115config AUDIT_ARCH
116 bool
117 default y
118
Isaku Yamahataba9cc322008-10-17 11:18:11 +0900119menuconfig 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
127if PARAVIRT_GUEST
128
129config 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
142source "arch/ia64/xen/Kconfig"
143
144endif
145
Linus Torvalds1da177e2005-04-16 15:20:36 -0700146choice
147 prompt "System type"
148 default IA64_GENERIC
149
150config IA64_GENERIC
151 bool "generic"
152 select NUMA
153 select ACPI_NUMA
Jan Beulichd1598e02007-01-03 09:26:21 +0000154 select SWIOTLB
Fenghua Yu62fdd762008-10-17 12:14:13 -0700155 select PCI_MSI
Tony Luckf2b3fdc2008-11-03 13:54:52 -0800156 select DMAR
Linus Torvalds1da177e2005-04-16 15:20:36 -0700157 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 Yu62fdd762008-10-17 12:14:13 -0700164 DIG+Intel+IOMMU For DIG systems with Intel IOMMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700165 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 Steiner22246612008-05-06 15:18:57 -0500168 SGI-UV For SGI UV systems
Linus Torvalds1da177e2005-04-16 15:20:36 -0700169 Ski-simulator For the HP simulator <http://www.hpl.hp.com/research/linux/ski/>
Isaku Yamahataba9cc322008-10-17 11:18:11 +0900170 Xen-domU For xen domU system
Linus Torvalds1da177e2005-04-16 15:20:36 -0700171
172 If you don't know what to do, choose "generic".
173
174config IA64_DIG
175 bool "DIG-compliant"
Jan Beulichd1598e02007-01-03 09:26:21 +0000176 select SWIOTLB
Linus Torvalds1da177e2005-04-16 15:20:36 -0700177
Fenghua Yu62fdd762008-10-17 12:14:13 -0700178config IA64_DIG_VTD
179 bool "DIG+Intel+IOMMU"
180 select DMAR
181 select PCI_MSI
182
Linus Torvalds1da177e2005-04-16 15:20:36 -0700183config 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
189config IA64_HP_ZX1_SWIOTLB
190 bool "HP-zx1/sx1000 with software I/O TLB"
Jan Beulichd1598e02007-01-03 09:26:21 +0000191 select SWIOTLB
Linus Torvalds1da177e2005-04-16 15:20:36 -0700192 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
199config IA64_SGI_SN2
200 bool "SGI-SN2"
Jes Sorensenbd3be242008-02-11 15:10:19 +0100201 select NUMA
202 select ACPI_NUMA
Linus Torvalds1da177e2005-04-16 15:20:36 -0700203 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 Steiner3351ab92008-07-31 07:52:50 -0500210config IA64_SGI_UV
211 bool "SGI-UV"
Jack Steiner22246612008-05-06 15:18:57 -0500212 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 Torvalds1da177e2005-04-16 15:20:36 -0700222config IA64_HP_SIM
223 bool "Ski-simulator"
Jan Beulichd1598e02007-01-03 09:26:21 +0000224 select SWIOTLB
Linus Torvalds1da177e2005-04-16 15:20:36 -0700225
Isaku Yamahataba9cc322008-10-17 11:18:11 +0900226config IA64_XEN_GUEST
227 bool "Xen guest"
Isaku Yamahata1d5b20f2009-01-16 12:17:30 +0900228 select SWIOTLB
Isaku Yamahataba9cc322008-10-17 11:18:11 +0900229 depends on XEN
Isaku Yamahata1d5b20f2009-01-16 12:17:30 +0900230 help
231 Build a kernel that runs on Xen guest domain. At this moment only
232 16KB page size in supported.
Isaku Yamahataba9cc322008-10-17 11:18:11 +0900233
Linus Torvalds1da177e2005-04-16 15:20:36 -0700234endchoice
235
236choice
237 prompt "Processor type"
238 default ITANIUM
239
240config 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
247config MCKINLEY
248 bool "Itanium 2"
249 help
250 Select this to configure for an Itanium 2 (McKinley) processor.
251
252endchoice
253
254choice
255 prompt "Kernel page size"
256 default IA64_PAGE_SIZE_16KB
257
258config 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
275config IA64_PAGE_SIZE_8KB
276 bool "8KB"
277
278config IA64_PAGE_SIZE_16KB
279 bool "16KB"
280
281config IA64_PAGE_SIZE_64KB
282 depends on !ITANIUM
283 bool "64KB"
284
285endchoice
286
Robin Holt837cd0b2005-11-11 09:35:43 -0600287choice
288 prompt "Page Table Levels"
289 default PGTABLE_3
290
291config PGTABLE_3
292 bool "3 Levels"
293
294config PGTABLE_4
295 depends on !IA64_PAGE_SIZE_64KB
296 bool "4 Levels"
297
298endchoice
299
Tony Luck10d0aa32008-02-11 13:23:46 -0800300if IA64_HP_SIM
301config HZ
302 default 32
303endif
304
305if !IA64_HP_SIM
Christoph Lameterb5d23e52005-06-23 00:08:27 -0700306source kernel/Kconfig.hz
Tony Luck10d0aa32008-02-11 13:23:46 -0800307endif
Christoph Lameterb5d23e52005-06-23 00:08:27 -0700308
Linus Torvalds1da177e2005-04-16 15:20:36 -0700309config IA64_BRL_EMU
310 bool
311 depends on ITANIUM
312 default y
313
314# align cache-sensitive data to 128 bytes
315config IA64_L1_CACHE_SHIFT
316 int
317 default "7" if MCKINLEY
318 default "6" if ITANIUM
319
Linus Torvalds1da177e2005-04-16 15:20:36 -0700320config 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
326config IOSAPIC
327 bool
328 depends on !IA64_HP_SIM
329 default y
330
Linus Torvalds1da177e2005-04-16 15:20:36 -0700331config FORCE_MAX_ZONEORDER
Bob Piccoda9577c2005-10-04 15:13:37 -0400332 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 Torvalds1da177e2005-04-16 15:20:36 -0700336
Hidetoshi Setob64f34c2008-01-29 14:27:30 +0900337config 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 Torvalds1da177e2005-04-16 15:20:36 -0700348config SMP
349 bool "Symmetric multi-processing support"
Jens Axboef27b4332008-06-26 11:22:30 +0200350 select USE_GENERIC_SMP_HELPERS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700351 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 Bunk03502fa2008-02-03 15:50:21 +0200362 See also the SMP-HOWTO available at
363 <http://www.tldp.org/docs.html#howto>.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700364
365 If you don't know what to do here, say N.
366
367config NR_CPUS
Robin Holtd1339df2008-08-02 13:29:24 -0500368 int "Maximum number of CPUs (2-4096)"
369 range 2 4096
Linus Torvalds1da177e2005-04-16 15:20:36 -0700370 depends on SMP
Robin Holtd1339df2008-08-02 13:29:24 -0500371 default "4096"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700372 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
379config 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 Gotocc576372006-06-29 02:24:27 -0700389config ARCH_ENABLE_MEMORY_HOTPLUG
390 def_bool y
391
KAMEZAWA Hiroyuki0c0e6192007-10-16 01:26:12 -0700392config ARCH_ENABLE_MEMORY_HOTREMOVE
393 def_bool y
394
Suresh Siddha7a9bdd82005-04-05 18:05:00 -0700395config SCHED_SMT
396 bool "SMT scheduler support"
397 depends on SMP
Suresh Siddha7a9bdd82005-04-05 18:05:00 -0700398 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 Rajff741902005-11-11 14:32:40 -0800403config 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
411config 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 Sharma0b0517a42007-08-13 23:41:45 +0530422source "kernel/Kconfig.preempt"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700423
Dave Hansen3f22ab22005-06-23 00:07:43 -0700424source "mm/Kconfig"
425
Bob Piccoda9577c2005-10-04 15:13:37 -0400426config ARCH_SELECT_MEMORY_MODEL
427 def_bool y
428
429config 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
437config ARCH_FLATMEM_ENABLE
438 def_bool y
439
440config ARCH_SPARSEMEM_ENABLE
441 def_bool y
442 depends on ARCH_DISCONTIGMEM_ENABLE
Christoph Lameteref229c52007-10-16 01:24:15 -0700443 select SPARSEMEM_VMEMMAP_ENABLE
Bob Piccoda9577c2005-10-04 15:13:37 -0400444
445config 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
449config NUMA
450 bool "NUMA support"
451 depends on !IA64_HP_SIM && !FLATMEM
452 default y if IA64_SGI_SN2
KAMEZAWA Hiroyuki6c33eb32006-11-08 17:44:50 -0800453 select ACPI_NUMA if ACPI
Bob Piccoda9577c2005-10-04 15:13:37 -0400454 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 Gotoc80d79d2006-04-10 22:53:53 -0700459config NODES_SHIFT
460 int "Max num nodes shift(3-10)"
461 range 3 10
Christoph Lameterc57d68c2006-08-22 19:43:27 -0700462 default "10"
Yasunori Gotoc80d79d2006-04-10 22:53:53 -0700463 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 Gorman05e0caa2006-09-27 01:49:54 -0700469config ARCH_POPULATES_NODE_MAP
470 def_bool y
471
Bob Piccoda9577c2005-10-04 15:13:37 -0400472# VIRTUAL_MEM_MAP and FLAT_NODE_MEM_MAP are functionally equivalent.
473# VIRTUAL_MEM_MAP has been retained for historical reasons.
474config 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
485config HOLES_IN_ZONE
486 bool
487 default y if VIRTUAL_MEM_MAP
488
489config HAVE_ARCH_EARLY_PFN_TO_NID
Tony Luck334f85b62009-02-19 11:22:36 -0800490 def_bool NUMA && SPARSEMEM
Bob Piccoda9577c2005-10-04 15:13:37 -0400491
Yasunori Goto10ad4002006-06-27 02:53:33 -0700492config HAVE_ARCH_NODEDATA_EXTENSION
493 def_bool y
494 depends on NUMA
495
Lee Schermerhorn3bccd992010-05-26 14:44:59 -0700496config USE_PERCPU_NUMA_NODE_ID
497 def_bool y
498 depends on NUMA
499
Lee Schermerhornfd1197f2010-05-26 14:45:01 -0700500config HAVE_MEMORYLESS_NODES
Lee Schermerhorn25106002010-08-09 17:19:00 -0700501 def_bool NUMA
Lee Schermerhornfd1197f2010-05-26 14:45:01 -0700502
KAMEZAWA Hiroyuki94925872009-09-22 16:45:45 -0700503config ARCH_PROC_KCORE_TEXT
504 def_bool y
505 depends on PROC_KCORE
506
Linus Torvalds1da177e2005-04-16 15:20:36 -0700507config IA64_MCA_RECOVERY
508 tristate "MCA recovery from errors other than TLB."
509
510config 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
518config 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 Yue9ef08b2006-12-08 16:06:01 -0800529config IA64_MC_ERR_INJECT
530 tristate "MC error injection support"
531 help
Matt LaPlante01dd2fb2007-10-20 01:34:40 +0200532 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 Yue9ef08b2006-12-08 16:06:01 -0800535 This is a useful tool for MCA testing.
536
537 If you're unsure, do not select this option.
538
Jes Sorensen466575f2006-01-19 04:54:00 -0500539config SGI_SN
540 def_bool y if (IA64_SGI_SN2 || IA64_GENERIC)
541
David Mosberger-Tang2ab561a2006-06-21 11:19:22 -0700542config 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 Helgaas28eda5b2007-09-20 14:22:03 -0600550config 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 Casavantc1311af2006-04-20 15:38:16 -0500560source "drivers/sn/Kconfig"
561
Zou Nan haia79561132006-12-07 09:51:35 -0800562config 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 Sterba3dde6ad2007-05-09 07:12:20 +0200568 but it is independent of the system firmware. And like a reboot
Zou Nan haia79561132006-12-07 09:51:35 -0800569 you can start any kernel with it, not just Linux.
570
Matt LaPlante01dd2fb2007-10-20 01:34:40 +0200571 The name comes from the similarity to the exec system call.
Zou Nan haia79561132006-12-07 09:51:35 -0800572
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
579config CRASH_DUMP
Bernhard Wallefb866112008-06-26 14:53:11 +0200580 bool "kernel crash dumps"
581 depends on IA64_MCA_RECOVERY && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
Zou Nan haia79561132006-12-07 09:51:35 -0800582 help
583 Generate crash dump after being started by kexec.
584
Linus Torvalds1da177e2005-04-16 15:20:36 -0700585source "drivers/firmware/Kconfig"
586
587source "fs/Kconfig.binfmt"
588
589endmenu
590
Bjorn Helgaas1547a012008-11-06 10:53:54 -0600591menu "Power management and ACPI options"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700592
Len Browneb7b6b32005-08-25 12:08:25 -0400593source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700594
595source "drivers/acpi/Kconfig"
596
Venkatesh Pallipadi4db86992005-07-29 16:15:00 -0700597if PM
598
599source "arch/ia64/kernel/cpufreq/Kconfig"
600
601endif
602
Linus Torvalds1da177e2005-04-16 15:20:36 -0700603endmenu
604
605if !IA64_HP_SIM
606
607menu "Bus options (PCI, PCMCIA)"
608
609config PCI
610 bool "PCI support"
611 help
Christoph Hellwig85f265d2005-08-09 13:38:00 -0700612 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 Torvalds1da177e2005-04-16 15:20:36 -0700614
615config PCI_DOMAINS
Matthew Wilcox36e23592007-07-10 10:54:40 -0600616 def_bool PCI
617
618config PCI_SYSCALL
619 def_bool PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -0700620
Kenji Kaneshigeb7bb5752006-04-28 11:50:43 +0900621source "drivers/pci/pcie/Kconfig"
622
Linus Torvalds1da177e2005-04-16 15:20:36 -0700623source "drivers/pci/Kconfig"
624
625source "drivers/pci/hotplug/Kconfig"
626
627source "drivers/pcmcia/Kconfig"
628
Fenghua Yu62fdd762008-10-17 12:14:13 -0700629config 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 McMartin6b1ff032009-02-14 04:11:29 -0500639config 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 Torvalds1da177e2005-04-16 15:20:36 -0700650endmenu
651
652endif
653
Sam Ravnborgd5950b42005-07-11 21:03:49 -0700654source "net/Kconfig"
655
Linus Torvalds1da177e2005-04-16 15:20:36 -0700656source "drivers/Kconfig"
657
Bjorn Helgaas1547a012008-11-06 10:53:54 -0600658source "arch/ia64/hp/sim/Kconfig"
659
Jes Sorensen1a4b0fc2006-11-10 12:27:49 -0800660config 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 Torvalds1da177e2005-04-16 15:20:36 -0700669source "fs/Kconfig"
670
Bjorn Helgaas1547a012008-11-06 10:53:54 -0600671source "arch/ia64/Kconfig.debug"
672
673source "security/Kconfig"
674
675source "crypto/Kconfig"
676
Xiantao Zhangb6939192008-03-28 14:58:47 +0800677source "arch/ia64/kvm/Kconfig"
678
Linus Torvalds1da177e2005-04-16 15:20:36 -0700679source "lib/Kconfig"
680
681#
682# Use the generic interrupt handling code in kernel/irq/:
683#
684config GENERIC_HARDIRQS
Tony Luck5d4bff92010-09-27 13:58:14 -0700685 def_bool y
686
687config GENERIC_HARDIRQS_NO__DO_IRQ
688 def_bool y
Linus Torvalds1da177e2005-04-16 15:20:36 -0700689
690config GENERIC_IRQ_PROBE
691 bool
692 default y
693
Ashok Raj54d5d422005-09-06 15:16:15 -0700694config GENERIC_PENDING_IRQ
695 bool
696 depends on GENERIC_HARDIRQS && SMP
697 default y
698
Ingo Molnar0d7012a2006-06-29 02:24:43 -0700699config IRQ_PER_CPU
700 bool
701 default y
702
FUJITA Tomonorib34eb532008-03-28 14:27:03 -0700703config IOMMU_HELPER
FUJITA Tomonoria8522502008-04-29 00:59:36 -0700704 def_bool (IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB || IA64_GENERIC || SWIOTLB)
Joerg Roedel1aaf1182008-11-26 17:25:13 +0100705
706config IOMMU_API
707 def_bool (DMAR)