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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 | |||
29 | config RWSEM_XCHGADD_ALGORITHM | ||
30 | bool | ||
31 | default y | ||
32 | |||
33 | config GENERIC_CALIBRATE_DELAY | ||
34 | bool | ||
35 | default y | ||
36 | |||
37 | config TIME_INTERPOLATION | ||
38 | bool | ||
39 | default y | ||
40 | |||
41 | config EFI | ||
42 | bool | ||
43 | default y | ||
44 | |||
45 | config GENERIC_IOMAP | ||
46 | bool | ||
47 | default y | ||
48 | |||
49 | choice | ||
50 | prompt "System type" | ||
51 | default IA64_GENERIC | ||
52 | |||
53 | config IA64_GENERIC | ||
54 | bool "generic" | ||
55 | select NUMA | ||
56 | select ACPI_NUMA | ||
57 | select VIRTUAL_MEM_MAP | ||
58 | select DISCONTIGMEM | ||
59 | help | ||
60 | This selects the system type of your hardware. A "generic" kernel | ||
61 | will run on any supported IA-64 system. However, if you configure | ||
62 | a kernel for your specific system, it will be faster and smaller. | ||
63 | |||
64 | generic For any supported IA-64 system | ||
65 | DIG-compliant For DIG ("Developer's Interface Guide") compliant systems | ||
66 | HP-zx1/sx1000 For HP systems | ||
67 | HP-zx1/sx1000+swiotlb For HP systems with (broken) DMA-constrained devices. | ||
68 | SGI-SN2 For SGI Altix systems | ||
69 | Ski-simulator For the HP simulator <http://www.hpl.hp.com/research/linux/ski/> | ||
70 | |||
71 | If you don't know what to do, choose "generic". | ||
72 | |||
73 | config IA64_DIG | ||
74 | bool "DIG-compliant" | ||
75 | |||
76 | config IA64_HP_ZX1 | ||
77 | bool "HP-zx1/sx1000" | ||
78 | help | ||
79 | Build a kernel that runs on HP zx1 and sx1000 systems. This adds | ||
80 | support for the HP I/O MMU. | ||
81 | |||
82 | config IA64_HP_ZX1_SWIOTLB | ||
83 | bool "HP-zx1/sx1000 with software I/O TLB" | ||
84 | help | ||
85 | Build a kernel that runs on HP zx1 and sx1000 systems even when they | ||
86 | have broken PCI devices which cannot DMA to full 32 bits. Apart | ||
87 | from support for the HP I/O MMU, this includes support for the software | ||
88 | I/O TLB, which allows supporting the broken devices at the expense of | ||
89 | wasting some kernel memory (about 2MB by default). | ||
90 | |||
91 | config IA64_SGI_SN2 | ||
92 | bool "SGI-SN2" | ||
93 | help | ||
94 | Selecting this option will optimize the kernel for use on sn2 based | ||
95 | systems, but the resulting kernel binary will not run on other | ||
96 | types of ia64 systems. If you have an SGI Altix system, it's safe | ||
97 | to select this option. If in doubt, select ia64 generic support | ||
98 | instead. | ||
99 | |||
100 | config IA64_HP_SIM | ||
101 | bool "Ski-simulator" | ||
102 | |||
103 | endchoice | ||
104 | |||
105 | choice | ||
106 | prompt "Processor type" | ||
107 | default ITANIUM | ||
108 | |||
109 | config ITANIUM | ||
110 | bool "Itanium" | ||
111 | help | ||
112 | Select your IA-64 processor type. The default is Itanium. | ||
113 | This choice is safe for all IA-64 systems, but may not perform | ||
114 | optimally on systems with, say, Itanium 2 or newer processors. | ||
115 | |||
116 | config MCKINLEY | ||
117 | bool "Itanium 2" | ||
118 | help | ||
119 | Select this to configure for an Itanium 2 (McKinley) processor. | ||
120 | |||
121 | endchoice | ||
122 | |||
123 | choice | ||
124 | prompt "Kernel page size" | ||
125 | default IA64_PAGE_SIZE_16KB | ||
126 | |||
127 | config IA64_PAGE_SIZE_4KB | ||
128 | bool "4KB" | ||
129 | help | ||
130 | This lets you select the page size of the kernel. For best IA-64 | ||
131 | performance, a page size of 8KB or 16KB is recommended. For best | ||
132 | IA-32 compatibility, a page size of 4KB should be selected (the vast | ||
133 | majority of IA-32 binaries work perfectly fine with a larger page | ||
134 | size). For Itanium 2 or newer systems, a page size of 64KB can also | ||
135 | be selected. | ||
136 | |||
137 | 4KB For best IA-32 compatibility | ||
138 | 8KB For best IA-64 performance | ||
139 | 16KB For best IA-64 performance | ||
140 | 64KB Requires Itanium 2 or newer processor. | ||
141 | |||
142 | If you don't know what to do, choose 16KB. | ||
143 | |||
144 | config IA64_PAGE_SIZE_8KB | ||
145 | bool "8KB" | ||
146 | |||
147 | config IA64_PAGE_SIZE_16KB | ||
148 | bool "16KB" | ||
149 | |||
150 | config IA64_PAGE_SIZE_64KB | ||
151 | depends on !ITANIUM | ||
152 | bool "64KB" | ||
153 | |||
154 | endchoice | ||
155 | |||
156 | config IA64_BRL_EMU | ||
157 | bool | ||
158 | depends on ITANIUM | ||
159 | default y | ||
160 | |||
161 | # align cache-sensitive data to 128 bytes | ||
162 | config IA64_L1_CACHE_SHIFT | ||
163 | int | ||
164 | default "7" if MCKINLEY | ||
165 | default "6" if ITANIUM | ||
166 | |||
167 | # align cache-sensitive data to 64 bytes | ||
168 | config NUMA | ||
169 | bool "NUMA support" | ||
170 | depends on !IA64_HP_SIM | ||
171 | default y if IA64_SGI_SN2 | ||
172 | select ACPI_NUMA | ||
173 | help | ||
174 | Say Y to compile the kernel to support NUMA (Non-Uniform Memory | ||
175 | Access). This option is for configuring high-end multiprocessor | ||
176 | server systems. If in doubt, say N. | ||
177 | |||
178 | config VIRTUAL_MEM_MAP | ||
179 | bool "Virtual mem map" | ||
180 | default y if !IA64_HP_SIM | ||
181 | help | ||
182 | Say Y to compile the kernel with support for a virtual mem map. | ||
183 | This code also only takes effect if a memory hole of greater than | ||
184 | 1 Gb is found during boot. You must turn this option on if you | ||
185 | require the DISCONTIGMEM option for your machine. If you are | ||
186 | unsure, say Y. | ||
187 | |||
188 | config HOLES_IN_ZONE | ||
189 | bool | ||
190 | default y if VIRTUAL_MEM_MAP | ||
191 | |||
192 | config DISCONTIGMEM | ||
193 | bool "Discontiguous memory support" | ||
194 | depends on (IA64_DIG || IA64_SGI_SN2 || IA64_GENERIC || IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB) && NUMA && VIRTUAL_MEM_MAP | ||
195 | default y if (IA64_SGI_SN2 || IA64_GENERIC) && NUMA | ||
196 | help | ||
197 | Say Y to support efficient handling of discontiguous physical memory, | ||
198 | for architectures which are either NUMA (Non-Uniform Memory Access) | ||
199 | or have huge holes in the physical address space for other reasons. | ||
200 | See <file:Documentation/vm/numa> for more. | ||
201 | |||
202 | config IA64_CYCLONE | ||
203 | bool "Cyclone (EXA) Time Source support" | ||
204 | help | ||
205 | Say Y here to enable support for IBM EXA Cyclone time source. | ||
206 | If you're unsure, answer N. | ||
207 | |||
208 | config IOSAPIC | ||
209 | bool | ||
210 | depends on !IA64_HP_SIM | ||
211 | default y | ||
212 | |||
213 | config IA64_SGI_SN_SIM | ||
214 | bool "SGI Medusa Simulator Support" | ||
215 | depends on IA64_SGI_SN2 | ||
216 | help | ||
217 | If you are compiling a kernel that will run under SGI's IA-64 | ||
218 | simulator (Medusa) then say Y, otherwise say N. | ||
219 | |||
220 | config FORCE_MAX_ZONEORDER | ||
221 | int | ||
222 | default "18" | ||
223 | |||
224 | config SMP | ||
225 | bool "Symmetric multi-processing support" | ||
226 | help | ||
227 | This enables support for systems with more than one CPU. If you have | ||
228 | a system with only one CPU, say N. If you have a system with more | ||
229 | than one CPU, say Y. | ||
230 | |||
231 | If you say N here, the kernel will run on single and multiprocessor | ||
232 | systems, but will use only one CPU of a multiprocessor system. If | ||
233 | you say Y here, the kernel will run on many, but not all, | ||
234 | single processor systems. On a single processor system, the kernel | ||
235 | will run faster if you say N here. | ||
236 | |||
237 | See also the <file:Documentation/smp.txt> and the SMP-HOWTO | ||
238 | available at <http://www.tldp.org/docs.html#howto>. | ||
239 | |||
240 | If you don't know what to do here, say N. | ||
241 | |||
242 | config NR_CPUS | ||
243 | int "Maximum number of CPUs (2-512)" | ||
244 | range 2 512 | ||
245 | depends on SMP | ||
246 | default "64" | ||
247 | help | ||
248 | You should set this to the number of CPUs in your system, but | ||
249 | keep in mind that a kernel compiled for, e.g., 2 CPUs will boot but | ||
250 | only use 2 CPUs on a >2 CPU system. Setting this to a value larger | ||
251 | than 64 will cause the use of a CPU mask array, causing a small | ||
252 | performance hit. | ||
253 | |||
254 | config HOTPLUG_CPU | ||
255 | bool "Support for hot-pluggable CPUs (EXPERIMENTAL)" | ||
256 | depends on SMP && EXPERIMENTAL | ||
257 | select HOTPLUG | ||
258 | default n | ||
259 | ---help--- | ||
260 | Say Y here to experiment with turning CPUs off and on. CPUs | ||
261 | can be controlled through /sys/devices/system/cpu/cpu#. | ||
262 | Say N if you want to disable CPU hotplug. | ||
263 | |||
264 | config PREEMPT | ||
265 | bool "Preemptible Kernel" | ||
266 | help | ||
267 | This option reduces the latency of the kernel when reacting to | ||
268 | real-time or interactive events by allowing a low priority process to | ||
269 | be preempted even if it is in kernel mode executing a system call. | ||
270 | This allows applications to run more reliably even when the system is | ||
271 | under load. | ||
272 | |||
273 | Say Y here if you are building a kernel for a desktop, embedded | ||
274 | or real-time system. Say N if you are unsure. | ||
275 | |||
276 | config HAVE_DEC_LOCK | ||
277 | bool | ||
278 | depends on (SMP || PREEMPT) | ||
279 | default y | ||
280 | |||
281 | config IA32_SUPPORT | ||
282 | bool "Support for Linux/x86 binaries" | ||
283 | help | ||
284 | IA-64 processors can execute IA-32 (X86) instructions. By | ||
285 | saying Y here, the kernel will include IA-32 system call | ||
286 | emulation support which makes it possible to transparently | ||
287 | run IA-32 Linux binaries on an IA-64 Linux system. | ||
288 | If in doubt, say Y. | ||
289 | |||
290 | config COMPAT | ||
291 | bool | ||
292 | depends on IA32_SUPPORT | ||
293 | default y | ||
294 | |||
295 | config IA64_MCA_RECOVERY | ||
296 | tristate "MCA recovery from errors other than TLB." | ||
297 | |||
298 | config PERFMON | ||
299 | bool "Performance monitor support" | ||
300 | help | ||
301 | Selects whether support for the IA-64 performance monitor hardware | ||
302 | is included in the kernel. This makes some kernel data-structures a | ||
303 | little bigger and slows down execution a bit, but it is generally | ||
304 | a good idea to turn this on. If you're unsure, say Y. | ||
305 | |||
306 | config IA64_PALINFO | ||
307 | tristate "/proc/pal support" | ||
308 | help | ||
309 | If you say Y here, you are able to get PAL (Processor Abstraction | ||
310 | Layer) information in /proc/pal. This contains useful information | ||
311 | about the processors in your systems, such as cache and TLB sizes | ||
312 | and the PAL firmware version in use. | ||
313 | |||
314 | To use this option, you have to ensure that the "/proc file system | ||
315 | support" (CONFIG_PROC_FS) is enabled, too. | ||
316 | |||
317 | config ACPI_DEALLOCATE_IRQ | ||
318 | bool | ||
319 | depends on IOSAPIC && EXPERIMENTAL | ||
320 | default y | ||
321 | |||
322 | source "drivers/firmware/Kconfig" | ||
323 | |||
324 | source "fs/Kconfig.binfmt" | ||
325 | |||
326 | endmenu | ||
327 | |||
328 | menu "Power management and ACPI" | ||
329 | |||
330 | config PM | ||
331 | bool "Power Management support" | ||
332 | depends on IA64_GENERIC || IA64_DIG || IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB | ||
333 | default y | ||
334 | help | ||
335 | "Power Management" means that parts of your computer are shut | ||
336 | off or put into a power conserving "sleep" mode if they are not | ||
337 | being used. There are two competing standards for doing this: APM | ||
338 | and ACPI. If you want to use either one, say Y here and then also | ||
339 | to the requisite support below. | ||
340 | |||
341 | Power Management is most important for battery powered laptop | ||
342 | computers; if you have a laptop, check out the Linux Laptop home | ||
343 | page on the WWW at <http://www.linux-on-laptops.com/> and the | ||
344 | Battery Powered Linux mini-HOWTO, available from | ||
345 | <http://www.tldp.org/docs.html#howto>. | ||
346 | |||
347 | Note that, even if you say N here, Linux on the x86 architecture | ||
348 | will issue the hlt instruction if nothing is to be done, thereby | ||
349 | sending the processor to sleep and saving power. | ||
350 | |||
351 | config ACPI | ||
352 | bool | ||
353 | depends on !IA64_HP_SIM | ||
354 | default y | ||
355 | |||
356 | if !IA64_HP_SIM | ||
357 | |||
358 | source "drivers/acpi/Kconfig" | ||
359 | |||
360 | endif | ||
361 | |||
362 | endmenu | ||
363 | |||
364 | if !IA64_HP_SIM | ||
365 | |||
366 | menu "Bus options (PCI, PCMCIA)" | ||
367 | |||
368 | config PCI | ||
369 | bool "PCI support" | ||
370 | help | ||
371 | Find out whether you have a PCI motherboard. PCI is the name of a | ||
372 | bus system, i.e. the way the CPU talks to the other stuff inside | ||
373 | your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or | ||
374 | VESA. If you have PCI, say Y, otherwise N. | ||
375 | |||
376 | The PCI-HOWTO, available from | ||
377 | <http://www.tldp.org/docs.html#howto>, contains valuable | ||
378 | information about which PCI hardware does work under Linux and which | ||
379 | doesn't. | ||
380 | |||
381 | config PCI_DOMAINS | ||
382 | bool | ||
383 | default PCI | ||
384 | |||
385 | source "drivers/pci/Kconfig" | ||
386 | |||
387 | source "drivers/pci/hotplug/Kconfig" | ||
388 | |||
389 | source "drivers/pcmcia/Kconfig" | ||
390 | |||
391 | endmenu | ||
392 | |||
393 | endif | ||
394 | |||
395 | source "drivers/Kconfig" | ||
396 | |||
397 | source "fs/Kconfig" | ||
398 | |||
399 | source "lib/Kconfig" | ||
400 | |||
401 | # | ||
402 | # Use the generic interrupt handling code in kernel/irq/: | ||
403 | # | ||
404 | config GENERIC_HARDIRQS | ||
405 | bool | ||
406 | default y | ||
407 | |||
408 | config GENERIC_IRQ_PROBE | ||
409 | bool | ||
410 | default y | ||
411 | |||
412 | source "arch/ia64/hp/sim/Kconfig" | ||
413 | |||
414 | source "arch/ia64/oprofile/Kconfig" | ||
415 | |||
416 | source "arch/ia64/Kconfig.debug" | ||
417 | |||
418 | source "security/Kconfig" | ||
419 | |||
420 | source "crypto/Kconfig" | ||