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1da177e4 LT |
1 | # |
2 | # For a description of the syntax of this configuration file, | |
3 | # see Documentation/kbuild/kconfig-language.txt. | |
4 | # | |
5 | ||
6 | mainmenu "IA-64 Linux Kernel Configuration" | |
7 | ||
8 | source "init/Kconfig" | |
9 | ||
10 | menu "Processor type and features" | |
11 | ||
12 | config 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 | ||
21 | config 64BIT | |
22 | bool | |
23 | default y | |
24 | ||
25 | config MMU | |
26 | bool | |
27 | default y | |
28 | ||
6c654b5f JL |
29 | config SWIOTLB |
30 | bool | |
31 | default y | |
32 | ||
1da177e4 LT |
33 | config RWSEM_XCHGADD_ALGORITHM |
34 | bool | |
35 | default y | |
36 | ||
37 | config GENERIC_CALIBRATE_DELAY | |
38 | bool | |
39 | default y | |
40 | ||
41 | config TIME_INTERPOLATION | |
42 | bool | |
43 | default y | |
44 | ||
45 | config EFI | |
46 | bool | |
47 | default y | |
48 | ||
49 | config GENERIC_IOMAP | |
50 | bool | |
51 | default y | |
52 | ||
7d12e522 AB |
53 | config SCHED_NO_NO_OMIT_FRAME_POINTER |
54 | bool | |
55 | default y | |
56 | ||
f14f75b8 JS |
57 | config IA64_UNCACHED_ALLOCATOR |
58 | bool | |
59 | select GENERIC_ALLOCATOR | |
60 | ||
1da177e4 LT |
61 | choice |
62 | prompt "System type" | |
63 | default IA64_GENERIC | |
64 | ||
65 | config IA64_GENERIC | |
66 | bool "generic" | |
eb7b6b32 | 67 | select ACPI |
1da177e4 LT |
68 | select NUMA |
69 | select ACPI_NUMA | |
1da177e4 LT |
70 | help |
71 | This selects the system type of your hardware. A "generic" kernel | |
72 | will run on any supported IA-64 system. However, if you configure | |
73 | a kernel for your specific system, it will be faster and smaller. | |
74 | ||
75 | generic For any supported IA-64 system | |
76 | DIG-compliant For DIG ("Developer's Interface Guide") compliant systems | |
77 | HP-zx1/sx1000 For HP systems | |
78 | HP-zx1/sx1000+swiotlb For HP systems with (broken) DMA-constrained devices. | |
79 | SGI-SN2 For SGI Altix systems | |
80 | Ski-simulator For the HP simulator <http://www.hpl.hp.com/research/linux/ski/> | |
81 | ||
82 | If you don't know what to do, choose "generic". | |
83 | ||
84 | config IA64_DIG | |
85 | bool "DIG-compliant" | |
86 | ||
87 | config IA64_HP_ZX1 | |
88 | bool "HP-zx1/sx1000" | |
89 | help | |
90 | Build a kernel that runs on HP zx1 and sx1000 systems. This adds | |
91 | support for the HP I/O MMU. | |
92 | ||
93 | config IA64_HP_ZX1_SWIOTLB | |
94 | bool "HP-zx1/sx1000 with software I/O TLB" | |
95 | help | |
96 | Build a kernel that runs on HP zx1 and sx1000 systems even when they | |
97 | have broken PCI devices which cannot DMA to full 32 bits. Apart | |
98 | from support for the HP I/O MMU, this includes support for the software | |
99 | I/O TLB, which allows supporting the broken devices at the expense of | |
100 | wasting some kernel memory (about 2MB by default). | |
101 | ||
102 | config IA64_SGI_SN2 | |
103 | bool "SGI-SN2" | |
104 | help | |
105 | Selecting this option will optimize the kernel for use on sn2 based | |
106 | systems, but the resulting kernel binary will not run on other | |
107 | types of ia64 systems. If you have an SGI Altix system, it's safe | |
108 | to select this option. If in doubt, select ia64 generic support | |
109 | instead. | |
110 | ||
111 | config IA64_HP_SIM | |
112 | bool "Ski-simulator" | |
113 | ||
114 | endchoice | |
115 | ||
116 | choice | |
117 | prompt "Processor type" | |
118 | default ITANIUM | |
119 | ||
120 | config ITANIUM | |
121 | bool "Itanium" | |
122 | help | |
123 | Select your IA-64 processor type. The default is Itanium. | |
124 | This choice is safe for all IA-64 systems, but may not perform | |
125 | optimally on systems with, say, Itanium 2 or newer processors. | |
126 | ||
127 | config MCKINLEY | |
128 | bool "Itanium 2" | |
129 | help | |
130 | Select this to configure for an Itanium 2 (McKinley) processor. | |
131 | ||
132 | endchoice | |
133 | ||
134 | choice | |
135 | prompt "Kernel page size" | |
136 | default IA64_PAGE_SIZE_16KB | |
137 | ||
138 | config IA64_PAGE_SIZE_4KB | |
139 | bool "4KB" | |
140 | help | |
141 | This lets you select the page size of the kernel. For best IA-64 | |
142 | performance, a page size of 8KB or 16KB is recommended. For best | |
143 | IA-32 compatibility, a page size of 4KB should be selected (the vast | |
144 | majority of IA-32 binaries work perfectly fine with a larger page | |
145 | size). For Itanium 2 or newer systems, a page size of 64KB can also | |
146 | be selected. | |
147 | ||
148 | 4KB For best IA-32 compatibility | |
149 | 8KB For best IA-64 performance | |
150 | 16KB For best IA-64 performance | |
151 | 64KB Requires Itanium 2 or newer processor. | |
152 | ||
153 | If you don't know what to do, choose 16KB. | |
154 | ||
155 | config IA64_PAGE_SIZE_8KB | |
156 | bool "8KB" | |
157 | ||
158 | config IA64_PAGE_SIZE_16KB | |
159 | bool "16KB" | |
160 | ||
161 | config IA64_PAGE_SIZE_64KB | |
162 | depends on !ITANIUM | |
163 | bool "64KB" | |
164 | ||
165 | endchoice | |
166 | ||
b5d23e5b CL |
167 | source kernel/Kconfig.hz |
168 | ||
1da177e4 LT |
169 | config IA64_BRL_EMU |
170 | bool | |
171 | depends on ITANIUM | |
172 | default y | |
173 | ||
174 | # align cache-sensitive data to 128 bytes | |
175 | config IA64_L1_CACHE_SHIFT | |
176 | int | |
177 | default "7" if MCKINLEY | |
178 | default "6" if ITANIUM | |
179 | ||
180 | # align cache-sensitive data to 64 bytes | |
1da177e4 LT |
181 | config IA64_CYCLONE |
182 | bool "Cyclone (EXA) Time Source support" | |
183 | help | |
184 | Say Y here to enable support for IBM EXA Cyclone time source. | |
185 | If you're unsure, answer N. | |
186 | ||
187 | config IOSAPIC | |
188 | bool | |
189 | depends on !IA64_HP_SIM | |
190 | default y | |
191 | ||
b0d82bd5 DN |
192 | config IA64_SGI_SN_XP |
193 | tristate "Support communication between SGI SSIs" | |
f79b3488 | 194 | depends on IA64_GENERIC || IA64_SGI_SN2 |
65ed0b33 | 195 | select IA64_UNCACHED_ALLOCATOR |
b0d82bd5 DN |
196 | help |
197 | An SGI machine can be divided into multiple Single System | |
198 | Images which act independently of each other and have | |
199 | hardware based memory protection from the others. Enabling | |
200 | this feature will allow for direct communication between SSIs | |
201 | based on a network adapter and DMA messaging. | |
202 | ||
1da177e4 | 203 | config FORCE_MAX_ZONEORDER |
da9577c5 BP |
204 | int "MAX_ORDER (11 - 17)" if !HUGETLB_PAGE |
205 | range 11 17 if !HUGETLB_PAGE | |
206 | default "17" if HUGETLB_PAGE | |
207 | default "11" | |
1da177e4 LT |
208 | |
209 | config SMP | |
210 | bool "Symmetric multi-processing support" | |
211 | help | |
212 | This enables support for systems with more than one CPU. If you have | |
213 | a system with only one CPU, say N. If you have a system with more | |
214 | than one CPU, say Y. | |
215 | ||
216 | If you say N here, the kernel will run on single and multiprocessor | |
217 | systems, but will use only one CPU of a multiprocessor system. If | |
218 | you say Y here, the kernel will run on many, but not all, | |
219 | single processor systems. On a single processor system, the kernel | |
220 | will run faster if you say N here. | |
221 | ||
222 | See also the <file:Documentation/smp.txt> and the SMP-HOWTO | |
223 | available at <http://www.tldp.org/docs.html#howto>. | |
224 | ||
225 | If you don't know what to do here, say N. | |
226 | ||
227 | config NR_CPUS | |
54703d36 JS |
228 | int "Maximum number of CPUs (2-1024)" |
229 | range 2 1024 | |
1da177e4 LT |
230 | depends on SMP |
231 | default "64" | |
232 | help | |
233 | You should set this to the number of CPUs in your system, but | |
234 | keep in mind that a kernel compiled for, e.g., 2 CPUs will boot but | |
235 | only use 2 CPUs on a >2 CPU system. Setting this to a value larger | |
236 | than 64 will cause the use of a CPU mask array, causing a small | |
237 | performance hit. | |
238 | ||
239 | config HOTPLUG_CPU | |
240 | bool "Support for hot-pluggable CPUs (EXPERIMENTAL)" | |
241 | depends on SMP && EXPERIMENTAL | |
242 | select HOTPLUG | |
243 | default n | |
244 | ---help--- | |
245 | Say Y here to experiment with turning CPUs off and on. CPUs | |
246 | can be controlled through /sys/devices/system/cpu/cpu#. | |
247 | Say N if you want to disable CPU hotplug. | |
248 | ||
7a9bdd88 SS |
249 | config SCHED_SMT |
250 | bool "SMT scheduler support" | |
251 | depends on SMP | |
252 | default off | |
253 | help | |
254 | Improves the CPU scheduler's decision making when dealing with | |
255 | Intel IA64 chips with MultiThreading at a cost of slightly increased | |
256 | overhead in some places. If unsure say N here. | |
257 | ||
1da177e4 LT |
258 | config PREEMPT |
259 | bool "Preemptible Kernel" | |
260 | help | |
261 | This option reduces the latency of the kernel when reacting to | |
262 | real-time or interactive events by allowing a low priority process to | |
263 | be preempted even if it is in kernel mode executing a system call. | |
264 | This allows applications to run more reliably even when the system is | |
265 | under load. | |
266 | ||
267 | Say Y here if you are building a kernel for a desktop, embedded | |
268 | or real-time system. Say N if you are unsure. | |
269 | ||
3f22ab27 DH |
270 | source "mm/Kconfig" |
271 | ||
da9577c5 BP |
272 | config ARCH_SELECT_MEMORY_MODEL |
273 | def_bool y | |
274 | ||
275 | config ARCH_DISCONTIGMEM_ENABLE | |
276 | def_bool y | |
277 | help | |
278 | Say Y to support efficient handling of discontiguous physical memory, | |
279 | for architectures which are either NUMA (Non-Uniform Memory Access) | |
280 | or have huge holes in the physical address space for other reasons. | |
281 | See <file:Documentation/vm/numa> for more. | |
282 | ||
283 | config ARCH_FLATMEM_ENABLE | |
284 | def_bool y | |
285 | ||
286 | config ARCH_SPARSEMEM_ENABLE | |
287 | def_bool y | |
288 | depends on ARCH_DISCONTIGMEM_ENABLE | |
289 | ||
290 | config ARCH_DISCONTIGMEM_DEFAULT | |
291 | def_bool y if (IA64_SGI_SN2 || IA64_GENERIC || IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB) | |
292 | depends on ARCH_DISCONTIGMEM_ENABLE | |
293 | ||
294 | config NUMA | |
295 | bool "NUMA support" | |
296 | depends on !IA64_HP_SIM && !FLATMEM | |
297 | default y if IA64_SGI_SN2 | |
298 | help | |
299 | Say Y to compile the kernel to support NUMA (Non-Uniform Memory | |
300 | Access). This option is for configuring high-end multiprocessor | |
301 | server systems. If in doubt, say N. | |
302 | ||
303 | # VIRTUAL_MEM_MAP and FLAT_NODE_MEM_MAP are functionally equivalent. | |
304 | # VIRTUAL_MEM_MAP has been retained for historical reasons. | |
305 | config VIRTUAL_MEM_MAP | |
306 | bool "Virtual mem map" | |
307 | depends on !SPARSEMEM | |
308 | default y if !IA64_HP_SIM | |
309 | help | |
310 | Say Y to compile the kernel with support for a virtual mem map. | |
311 | This code also only takes effect if a memory hole of greater than | |
312 | 1 Gb is found during boot. You must turn this option on if you | |
313 | require the DISCONTIGMEM option for your machine. If you are | |
314 | unsure, say Y. | |
315 | ||
316 | config HOLES_IN_ZONE | |
317 | bool | |
318 | default y if VIRTUAL_MEM_MAP | |
319 | ||
320 | config HAVE_ARCH_EARLY_PFN_TO_NID | |
321 | def_bool y | |
322 | depends on NEED_MULTIPLE_NODES | |
323 | ||
1da177e4 LT |
324 | config IA32_SUPPORT |
325 | bool "Support for Linux/x86 binaries" | |
326 | help | |
327 | IA-64 processors can execute IA-32 (X86) instructions. By | |
328 | saying Y here, the kernel will include IA-32 system call | |
329 | emulation support which makes it possible to transparently | |
330 | run IA-32 Linux binaries on an IA-64 Linux system. | |
331 | If in doubt, say Y. | |
332 | ||
333 | config COMPAT | |
334 | bool | |
335 | depends on IA32_SUPPORT | |
336 | default y | |
337 | ||
338 | config IA64_MCA_RECOVERY | |
339 | tristate "MCA recovery from errors other than TLB." | |
340 | ||
341 | config PERFMON | |
342 | bool "Performance monitor support" | |
343 | help | |
344 | Selects whether support for the IA-64 performance monitor hardware | |
345 | is included in the kernel. This makes some kernel data-structures a | |
346 | little bigger and slows down execution a bit, but it is generally | |
347 | a good idea to turn this on. If you're unsure, say Y. | |
348 | ||
349 | config IA64_PALINFO | |
350 | tristate "/proc/pal support" | |
351 | help | |
352 | If you say Y here, you are able to get PAL (Processor Abstraction | |
353 | Layer) information in /proc/pal. This contains useful information | |
354 | about the processors in your systems, such as cache and TLB sizes | |
355 | and the PAL firmware version in use. | |
356 | ||
357 | To use this option, you have to ensure that the "/proc file system | |
358 | support" (CONFIG_PROC_FS) is enabled, too. | |
359 | ||
1da177e4 LT |
360 | source "drivers/firmware/Kconfig" |
361 | ||
362 | source "fs/Kconfig.binfmt" | |
363 | ||
364 | endmenu | |
365 | ||
366 | menu "Power management and ACPI" | |
367 | ||
eb7b6b32 | 368 | source "kernel/power/Kconfig" |
1da177e4 LT |
369 | |
370 | source "drivers/acpi/Kconfig" | |
371 | ||
4db8699b VP |
372 | if PM |
373 | ||
374 | source "arch/ia64/kernel/cpufreq/Kconfig" | |
375 | ||
376 | endif | |
377 | ||
1da177e4 LT |
378 | endmenu |
379 | ||
380 | if !IA64_HP_SIM | |
381 | ||
382 | menu "Bus options (PCI, PCMCIA)" | |
383 | ||
384 | config PCI | |
385 | bool "PCI support" | |
386 | help | |
85f265d8 CH |
387 | Real IA-64 machines all have PCI/PCI-X/PCI Express busses. Say Y |
388 | here unless you are using a simulator without PCI support. | |
1da177e4 LT |
389 | |
390 | config PCI_DOMAINS | |
391 | bool | |
392 | default PCI | |
393 | ||
394 | source "drivers/pci/Kconfig" | |
395 | ||
396 | source "drivers/pci/hotplug/Kconfig" | |
397 | ||
398 | source "drivers/pcmcia/Kconfig" | |
399 | ||
400 | endmenu | |
401 | ||
402 | endif | |
403 | ||
d5950b43 SR |
404 | source "net/Kconfig" |
405 | ||
1da177e4 LT |
406 | source "drivers/Kconfig" |
407 | ||
408 | source "fs/Kconfig" | |
409 | ||
410 | source "lib/Kconfig" | |
411 | ||
412 | # | |
413 | # Use the generic interrupt handling code in kernel/irq/: | |
414 | # | |
415 | config GENERIC_HARDIRQS | |
416 | bool | |
417 | default y | |
418 | ||
419 | config GENERIC_IRQ_PROBE | |
420 | bool | |
421 | default y | |
422 | ||
54d5d424 AR |
423 | config GENERIC_PENDING_IRQ |
424 | bool | |
425 | depends on GENERIC_HARDIRQS && SMP | |
426 | default y | |
427 | ||
1da177e4 LT |
428 | source "arch/ia64/hp/sim/Kconfig" |
429 | ||
cd6b0762 PP |
430 | menu "Instrumentation Support" |
431 | depends on EXPERIMENTAL | |
432 | ||
1da177e4 LT |
433 | source "arch/ia64/oprofile/Kconfig" |
434 | ||
cd6b0762 PP |
435 | config KPROBES |
436 | bool "Kprobes (EXPERIMENTAL)" | |
437 | help | |
438 | Kprobes allows you to trap at almost any kernel address and | |
439 | execute a callback function. register_kprobe() establishes | |
440 | a probepoint and specifies the callback. Kprobes is useful | |
441 | for kernel debugging, non-intrusive instrumentation and testing. | |
442 | If in doubt, say "N". | |
443 | endmenu | |
444 | ||
1da177e4 LT |
445 | source "arch/ia64/Kconfig.debug" |
446 | ||
447 | source "security/Kconfig" | |
448 | ||
449 | source "crypto/Kconfig" |