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Linus Torvalds1da177e2005-04-16 15:20:36 -07001#
2# For a description of the syntax of this configuration file,
3# see Documentation/kbuild/kconfig-language.txt.
4#
5
6mainmenu "IA-64 Linux Kernel Configuration"
7
8source "init/Kconfig"
9
10menu "Processor type and features"
11
12config IA64
13 bool
14 default y
15 help
16 The Itanium Processor Family is Intel's 64-bit successor to
17 the 32-bit X86 line. The IA-64 Linux project has a home
18 page at <http://www.linuxia64.org/> and a mailing list at
19 <linux-ia64@vger.kernel.org>.
20
21config 64BIT
22 bool
23 default y
24
25config MMU
26 bool
27 default y
28
John W. Linville6c654b52005-09-29 14:42:42 -070029config SWIOTLB
30 bool
31 default y
32
Linus Torvalds1da177e2005-04-16 15:20:36 -070033config RWSEM_XCHGADD_ALGORITHM
34 bool
35 default y
36
37config GENERIC_CALIBRATE_DELAY
38 bool
39 default y
40
41config TIME_INTERPOLATION
42 bool
43 default y
44
45config EFI
46 bool
47 default y
48
49config GENERIC_IOMAP
50 bool
51 default y
52
Anton Blanchard7d12e522005-05-05 16:15:11 -070053config SCHED_NO_NO_OMIT_FRAME_POINTER
54 bool
55 default y
56
Jes Sorensenf14f75b2005-06-21 17:15:02 -070057config IA64_UNCACHED_ALLOCATOR
58 bool
59 select GENERIC_ALLOCATOR
60
Yasunori Gotoff9569b2005-12-12 00:37:37 -080061config DMA_IS_DMA32
Andi Kleend1e3dfd2005-11-05 17:25:53 +010062 bool
63 default y
64
Linus Torvalds1da177e2005-04-16 15:20:36 -070065choice
66 prompt "System type"
67 default IA64_GENERIC
68
69config IA64_GENERIC
70 bool "generic"
Len Browneb7b6b32005-08-25 12:08:25 -040071 select ACPI
Linus Torvalds1da177e2005-04-16 15:20:36 -070072 select NUMA
73 select ACPI_NUMA
Linus Torvalds1da177e2005-04-16 15:20:36 -070074 help
75 This selects the system type of your hardware. A "generic" kernel
76 will run on any supported IA-64 system. However, if you configure
77 a kernel for your specific system, it will be faster and smaller.
78
79 generic For any supported IA-64 system
80 DIG-compliant For DIG ("Developer's Interface Guide") compliant systems
81 HP-zx1/sx1000 For HP systems
82 HP-zx1/sx1000+swiotlb For HP systems with (broken) DMA-constrained devices.
83 SGI-SN2 For SGI Altix systems
84 Ski-simulator For the HP simulator <http://www.hpl.hp.com/research/linux/ski/>
85
86 If you don't know what to do, choose "generic".
87
88config IA64_DIG
89 bool "DIG-compliant"
90
91config IA64_HP_ZX1
92 bool "HP-zx1/sx1000"
93 help
94 Build a kernel that runs on HP zx1 and sx1000 systems. This adds
95 support for the HP I/O MMU.
96
97config IA64_HP_ZX1_SWIOTLB
98 bool "HP-zx1/sx1000 with software I/O TLB"
99 help
100 Build a kernel that runs on HP zx1 and sx1000 systems even when they
101 have broken PCI devices which cannot DMA to full 32 bits. Apart
102 from support for the HP I/O MMU, this includes support for the software
103 I/O TLB, which allows supporting the broken devices at the expense of
104 wasting some kernel memory (about 2MB by default).
105
106config IA64_SGI_SN2
107 bool "SGI-SN2"
108 help
109 Selecting this option will optimize the kernel for use on sn2 based
110 systems, but the resulting kernel binary will not run on other
111 types of ia64 systems. If you have an SGI Altix system, it's safe
112 to select this option. If in doubt, select ia64 generic support
113 instead.
114
115config IA64_HP_SIM
116 bool "Ski-simulator"
117
118endchoice
119
120choice
121 prompt "Processor type"
122 default ITANIUM
123
124config ITANIUM
125 bool "Itanium"
126 help
127 Select your IA-64 processor type. The default is Itanium.
128 This choice is safe for all IA-64 systems, but may not perform
129 optimally on systems with, say, Itanium 2 or newer processors.
130
131config MCKINLEY
132 bool "Itanium 2"
133 help
134 Select this to configure for an Itanium 2 (McKinley) processor.
135
136endchoice
137
138choice
139 prompt "Kernel page size"
140 default IA64_PAGE_SIZE_16KB
141
142config IA64_PAGE_SIZE_4KB
143 bool "4KB"
144 help
145 This lets you select the page size of the kernel. For best IA-64
146 performance, a page size of 8KB or 16KB is recommended. For best
147 IA-32 compatibility, a page size of 4KB should be selected (the vast
148 majority of IA-32 binaries work perfectly fine with a larger page
149 size). For Itanium 2 or newer systems, a page size of 64KB can also
150 be selected.
151
152 4KB For best IA-32 compatibility
153 8KB For best IA-64 performance
154 16KB For best IA-64 performance
155 64KB Requires Itanium 2 or newer processor.
156
157 If you don't know what to do, choose 16KB.
158
159config IA64_PAGE_SIZE_8KB
160 bool "8KB"
161
162config IA64_PAGE_SIZE_16KB
163 bool "16KB"
164
165config IA64_PAGE_SIZE_64KB
166 depends on !ITANIUM
167 bool "64KB"
168
169endchoice
170
Robin Holt837cd0b2005-11-11 09:35:43 -0600171choice
172 prompt "Page Table Levels"
173 default PGTABLE_3
174
175config PGTABLE_3
176 bool "3 Levels"
177
178config PGTABLE_4
179 depends on !IA64_PAGE_SIZE_64KB
180 bool "4 Levels"
181
182endchoice
183
Christoph Lameterb5d23e52005-06-23 00:08:27 -0700184source kernel/Kconfig.hz
185
Linus Torvalds1da177e2005-04-16 15:20:36 -0700186config IA64_BRL_EMU
187 bool
188 depends on ITANIUM
189 default y
190
191# align cache-sensitive data to 128 bytes
192config IA64_L1_CACHE_SHIFT
193 int
194 default "7" if MCKINLEY
195 default "6" if ITANIUM
196
197# align cache-sensitive data to 64 bytes
Linus Torvalds1da177e2005-04-16 15:20:36 -0700198config IA64_CYCLONE
199 bool "Cyclone (EXA) Time Source support"
200 help
201 Say Y here to enable support for IBM EXA Cyclone time source.
202 If you're unsure, answer N.
203
204config IOSAPIC
205 bool
206 depends on !IA64_HP_SIM
207 default y
208
Dean Nelsonb0d82bd2005-03-23 19:46:00 -0700209config IA64_SGI_SN_XP
210 tristate "Support communication between SGI SSIs"
Dean Nelsonf79b3482005-11-01 10:21:51 -0600211 depends on IA64_GENERIC || IA64_SGI_SN2
Jes Sorensen65ed0b32005-06-21 17:15:03 -0700212 select IA64_UNCACHED_ALLOCATOR
Dean Nelsonb0d82bd2005-03-23 19:46:00 -0700213 help
214 An SGI machine can be divided into multiple Single System
215 Images which act independently of each other and have
216 hardware based memory protection from the others. Enabling
217 this feature will allow for direct communication between SSIs
218 based on a network adapter and DMA messaging.
219
Linus Torvalds1da177e2005-04-16 15:20:36 -0700220config FORCE_MAX_ZONEORDER
Bob Piccoda9577c2005-10-04 15:13:37 -0400221 int "MAX_ORDER (11 - 17)" if !HUGETLB_PAGE
222 range 11 17 if !HUGETLB_PAGE
223 default "17" if HUGETLB_PAGE
224 default "11"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700225
226config SMP
227 bool "Symmetric multi-processing support"
228 help
229 This enables support for systems with more than one CPU. If you have
230 a system with only one CPU, say N. If you have a system with more
231 than one CPU, say Y.
232
233 If you say N here, the kernel will run on single and multiprocessor
234 systems, but will use only one CPU of a multiprocessor system. If
235 you say Y here, the kernel will run on many, but not all,
236 single processor systems. On a single processor system, the kernel
237 will run faster if you say N here.
238
239 See also the <file:Documentation/smp.txt> and the SMP-HOWTO
240 available at <http://www.tldp.org/docs.html#howto>.
241
242 If you don't know what to do here, say N.
243
244config NR_CPUS
Jack Steiner54703d32005-09-14 10:33:40 -0500245 int "Maximum number of CPUs (2-1024)"
246 range 2 1024
Linus Torvalds1da177e2005-04-16 15:20:36 -0700247 depends on SMP
248 default "64"
249 help
250 You should set this to the number of CPUs in your system, but
251 keep in mind that a kernel compiled for, e.g., 2 CPUs will boot but
252 only use 2 CPUs on a >2 CPU system. Setting this to a value larger
253 than 64 will cause the use of a CPU mask array, causing a small
254 performance hit.
255
256config HOTPLUG_CPU
257 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
258 depends on SMP && EXPERIMENTAL
259 select HOTPLUG
260 default n
261 ---help---
262 Say Y here to experiment with turning CPUs off and on. CPUs
263 can be controlled through /sys/devices/system/cpu/cpu#.
264 Say N if you want to disable CPU hotplug.
265
Suresh Siddha7a9bdd82005-04-05 18:05:00 -0700266config SCHED_SMT
267 bool "SMT scheduler support"
268 depends on SMP
269 default off
270 help
271 Improves the CPU scheduler's decision making when dealing with
272 Intel IA64 chips with MultiThreading at a cost of slightly increased
273 overhead in some places. If unsure say N here.
274
Linus Torvalds1da177e2005-04-16 15:20:36 -0700275config PREEMPT
276 bool "Preemptible Kernel"
277 help
278 This option reduces the latency of the kernel when reacting to
279 real-time or interactive events by allowing a low priority process to
280 be preempted even if it is in kernel mode executing a system call.
281 This allows applications to run more reliably even when the system is
282 under load.
283
284 Say Y here if you are building a kernel for a desktop, embedded
285 or real-time system. Say N if you are unsure.
286
Dave Hansen3f22ab22005-06-23 00:07:43 -0700287source "mm/Kconfig"
288
Bob Piccoda9577c2005-10-04 15:13:37 -0400289config ARCH_SELECT_MEMORY_MODEL
290 def_bool y
291
292config ARCH_DISCONTIGMEM_ENABLE
293 def_bool y
294 help
295 Say Y to support efficient handling of discontiguous physical memory,
296 for architectures which are either NUMA (Non-Uniform Memory Access)
297 or have huge holes in the physical address space for other reasons.
298 See <file:Documentation/vm/numa> for more.
299
300config ARCH_FLATMEM_ENABLE
301 def_bool y
302
303config ARCH_SPARSEMEM_ENABLE
304 def_bool y
305 depends on ARCH_DISCONTIGMEM_ENABLE
306
307config ARCH_DISCONTIGMEM_DEFAULT
308 def_bool y if (IA64_SGI_SN2 || IA64_GENERIC || IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB)
309 depends on ARCH_DISCONTIGMEM_ENABLE
310
311config NUMA
312 bool "NUMA support"
313 depends on !IA64_HP_SIM && !FLATMEM
314 default y if IA64_SGI_SN2
315 help
316 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
317 Access). This option is for configuring high-end multiprocessor
318 server systems. If in doubt, say N.
319
320# VIRTUAL_MEM_MAP and FLAT_NODE_MEM_MAP are functionally equivalent.
321# VIRTUAL_MEM_MAP has been retained for historical reasons.
322config VIRTUAL_MEM_MAP
323 bool "Virtual mem map"
324 depends on !SPARSEMEM
325 default y if !IA64_HP_SIM
326 help
327 Say Y to compile the kernel with support for a virtual mem map.
328 This code also only takes effect if a memory hole of greater than
329 1 Gb is found during boot. You must turn this option on if you
330 require the DISCONTIGMEM option for your machine. If you are
331 unsure, say Y.
332
333config HOLES_IN_ZONE
334 bool
335 default y if VIRTUAL_MEM_MAP
336
337config HAVE_ARCH_EARLY_PFN_TO_NID
338 def_bool y
339 depends on NEED_MULTIPLE_NODES
340
Linus Torvalds1da177e2005-04-16 15:20:36 -0700341config IA32_SUPPORT
342 bool "Support for Linux/x86 binaries"
343 help
344 IA-64 processors can execute IA-32 (X86) instructions. By
345 saying Y here, the kernel will include IA-32 system call
346 emulation support which makes it possible to transparently
347 run IA-32 Linux binaries on an IA-64 Linux system.
348 If in doubt, say Y.
349
350config COMPAT
351 bool
352 depends on IA32_SUPPORT
353 default y
354
355config IA64_MCA_RECOVERY
356 tristate "MCA recovery from errors other than TLB."
357
358config PERFMON
359 bool "Performance monitor support"
360 help
361 Selects whether support for the IA-64 performance monitor hardware
362 is included in the kernel. This makes some kernel data-structures a
363 little bigger and slows down execution a bit, but it is generally
364 a good idea to turn this on. If you're unsure, say Y.
365
366config IA64_PALINFO
367 tristate "/proc/pal support"
368 help
369 If you say Y here, you are able to get PAL (Processor Abstraction
370 Layer) information in /proc/pal. This contains useful information
371 about the processors in your systems, such as cache and TLB sizes
372 and the PAL firmware version in use.
373
374 To use this option, you have to ensure that the "/proc file system
375 support" (CONFIG_PROC_FS) is enabled, too.
376
Linus Torvalds1da177e2005-04-16 15:20:36 -0700377source "drivers/firmware/Kconfig"
378
379source "fs/Kconfig.binfmt"
380
381endmenu
382
383menu "Power management and ACPI"
384
Len Browneb7b6b32005-08-25 12:08:25 -0400385source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700386
387source "drivers/acpi/Kconfig"
388
Venkatesh Pallipadi4db86992005-07-29 16:15:00 -0700389if PM
390
391source "arch/ia64/kernel/cpufreq/Kconfig"
392
393endif
394
Linus Torvalds1da177e2005-04-16 15:20:36 -0700395endmenu
396
397if !IA64_HP_SIM
398
399menu "Bus options (PCI, PCMCIA)"
400
401config PCI
402 bool "PCI support"
403 help
Christoph Hellwig85f265d2005-08-09 13:38:00 -0700404 Real IA-64 machines all have PCI/PCI-X/PCI Express busses. Say Y
405 here unless you are using a simulator without PCI support.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700406
407config PCI_DOMAINS
408 bool
409 default PCI
410
411source "drivers/pci/Kconfig"
412
413source "drivers/pci/hotplug/Kconfig"
414
415source "drivers/pcmcia/Kconfig"
416
417endmenu
418
419endif
420
Sam Ravnborgd5950b42005-07-11 21:03:49 -0700421source "net/Kconfig"
422
Linus Torvalds1da177e2005-04-16 15:20:36 -0700423source "drivers/Kconfig"
424
425source "fs/Kconfig"
426
427source "lib/Kconfig"
428
429#
430# Use the generic interrupt handling code in kernel/irq/:
431#
432config GENERIC_HARDIRQS
433 bool
434 default y
435
436config GENERIC_IRQ_PROBE
437 bool
438 default y
439
Ashok Raj54d5d422005-09-06 15:16:15 -0700440config GENERIC_PENDING_IRQ
441 bool
442 depends on GENERIC_HARDIRQS && SMP
443 default y
444
Linus Torvalds1da177e2005-04-16 15:20:36 -0700445source "arch/ia64/hp/sim/Kconfig"
446
Prasanna S Panchamukhicd6b0762005-11-07 00:59:14 -0800447menu "Instrumentation Support"
448 depends on EXPERIMENTAL
449
Linus Torvalds1da177e2005-04-16 15:20:36 -0700450source "arch/ia64/oprofile/Kconfig"
451
Prasanna S Panchamukhicd6b0762005-11-07 00:59:14 -0800452config KPROBES
453 bool "Kprobes (EXPERIMENTAL)"
454 help
455 Kprobes allows you to trap at almost any kernel address and
456 execute a callback function. register_kprobe() establishes
457 a probepoint and specifies the callback. Kprobes is useful
458 for kernel debugging, non-intrusive instrumentation and testing.
459 If in doubt, say "N".
460endmenu
461
Linus Torvalds1da177e2005-04-16 15:20:36 -0700462source "arch/ia64/Kconfig.debug"
463
464source "security/Kconfig"
465
466source "crypto/Kconfig"