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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 | config 64BIT | |
7 | def_bool y | |
8 | ||
9 | config MMU | |
10 | bool | |
11 | default y | |
12 | ||
13 | config UID16 | |
14 | bool | |
15 | ||
16 | config RWSEM_GENERIC_SPINLOCK | |
17 | bool | |
18 | ||
19 | config RWSEM_XCHGADD_ALGORITHM | |
20 | bool | |
21 | default y | |
22 | ||
23 | config GENERIC_CALIBRATE_DELAY | |
24 | bool | |
25 | default y | |
26 | ||
27 | config GENERIC_ISA_DMA | |
28 | bool | |
29 | default y | |
30 | ||
1da177e4 LT |
31 | config EARLY_PRINTK |
32 | bool | |
33 | default y | |
34 | ||
35 | config COMPAT | |
36 | bool | |
37 | default y | |
38 | ||
7d12e522 AB |
39 | config SCHED_NO_NO_OMIT_FRAME_POINTER |
40 | bool | |
41 | default y | |
42 | ||
a08b6b79 Z |
43 | config ARCH_MAY_HAVE_PC_FDC |
44 | bool | |
45 | default y | |
46 | ||
1da177e4 LT |
47 | # We optimistically allocate largepages from the VM, so make the limit |
48 | # large enough (16MB). This badly named config option is actually | |
49 | # max order + 1 | |
50 | config FORCE_MAX_ZONEORDER | |
51 | int | |
52 | default "13" | |
53 | ||
54 | source "init/Kconfig" | |
55 | ||
56 | config SYSVIPC_COMPAT | |
57 | bool | |
58 | depends on COMPAT && SYSVIPC | |
59 | default y | |
60 | ||
61 | menu "Platform support" | |
62 | ||
63 | choice | |
64 | prompt "Platform Type" | |
65 | default PPC_MULTIPLATFORM | |
66 | ||
67 | config PPC_ISERIES | |
68 | bool "IBM Legacy iSeries" | |
69 | ||
70 | config PPC_MULTIPLATFORM | |
71 | bool "Generic" | |
72 | ||
73 | endchoice | |
74 | ||
75 | config PPC_PSERIES | |
76 | depends on PPC_MULTIPLATFORM | |
77 | bool " IBM pSeries & new iSeries" | |
78 | default y | |
79 | ||
fef1c772 AB |
80 | config PPC_BPA |
81 | bool " Broadband Processor Architecture" | |
82 | depends on PPC_MULTIPLATFORM | |
83 | ||
1da177e4 LT |
84 | config PPC_PMAC |
85 | depends on PPC_MULTIPLATFORM | |
86 | bool " Apple G5 based machines" | |
87 | default y | |
88 | select U3_DART | |
89 | ||
90 | config PPC_MAPLE | |
91 | depends on PPC_MULTIPLATFORM | |
92 | bool " Maple 970FX Evaluation Board" | |
93 | select U3_DART | |
94 | select MPIC_BROKEN_U3 | |
95 | default n | |
96 | help | |
97 | This option enables support for the Maple 970FX Evaluation Board. | |
98 | For more informations, refer to <http://www.970eval.com> | |
99 | ||
100 | config PPC | |
101 | bool | |
102 | default y | |
103 | ||
104 | config PPC64 | |
105 | bool | |
106 | default y | |
107 | ||
108 | config PPC_OF | |
109 | depends on PPC_MULTIPLATFORM | |
110 | bool | |
111 | default y | |
112 | ||
cebf589c AB |
113 | config XICS |
114 | depends on PPC_PSERIES | |
115 | bool | |
116 | default y | |
117 | ||
118 | config MPIC | |
119 | depends on PPC_PSERIES || PPC_PMAC || PPC_MAPLE | |
120 | bool | |
121 | default y | |
122 | ||
123 | config BPA_IIC | |
124 | depends on PPC_BPA | |
125 | bool | |
126 | default y | |
127 | ||
1da177e4 LT |
128 | # VMX is pSeries only for now until somebody writes the iSeries |
129 | # exception vectors for it | |
130 | config ALTIVEC | |
131 | bool "Support for VMX (Altivec) vector unit" | |
132 | depends on PPC_MULTIPLATFORM | |
133 | default y | |
134 | ||
135 | config PPC_SPLPAR | |
136 | depends on PPC_PSERIES | |
137 | bool "Support for shared-processor logical partitions" | |
138 | default n | |
139 | help | |
140 | Enabling this option will make the kernel run more efficiently | |
141 | on logically-partitioned pSeries systems which use shared | |
142 | processors, that is, which share physical processors between | |
143 | two or more partitions. | |
144 | ||
fce0d574 S |
145 | config KEXEC |
146 | bool "kexec system call (EXPERIMENTAL)" | |
147 | depends on PPC_MULTIPLATFORM && EXPERIMENTAL | |
148 | help | |
149 | kexec is a system call that implements the ability to shutdown your | |
150 | current kernel, and to start another kernel. It is like a reboot | |
151 | but it is indepedent of the system firmware. And like a reboot | |
152 | you can start any kernel with it, not just Linux. | |
153 | ||
154 | The name comes from the similiarity to the exec system call. | |
155 | ||
156 | It is an ongoing process to be certain the hardware in a machine | |
157 | is properly shutdown, so do not be surprised if this code does not | |
158 | initially work for you. It may help to enable device hotplugging | |
159 | support. As of this writing the exact hardware interface is | |
160 | strongly in flux, so no good recommendation can be made. | |
161 | ||
1da177e4 LT |
162 | config IBMVIO |
163 | depends on PPC_PSERIES || PPC_ISERIES | |
164 | bool | |
165 | default y | |
166 | ||
167 | config U3_DART | |
168 | bool | |
169 | depends on PPC_MULTIPLATFORM | |
170 | default n | |
171 | ||
172 | config MPIC_BROKEN_U3 | |
173 | bool | |
174 | depends on PPC_MAPLE | |
175 | default y | |
176 | ||
177 | config PPC_PMAC64 | |
178 | bool | |
179 | depends on PPC_PMAC | |
180 | default y | |
181 | ||
182 | config BOOTX_TEXT | |
183 | bool "Support for early boot text console" | |
184 | depends PPC_OF | |
185 | help | |
186 | Say Y here to see progress messages from the boot firmware in text | |
187 | mode. Requires an Open Firmware compatible video card. | |
188 | ||
189 | config POWER4_ONLY | |
190 | bool "Optimize for POWER4" | |
191 | default n | |
192 | ---help--- | |
193 | Cause the compiler to optimize for POWER4 processors. The resulting | |
194 | binary will not work on POWER3 or RS64 processors when compiled with | |
195 | binutils 2.15 or later. | |
196 | ||
197 | config IOMMU_VMERGE | |
198 | bool "Enable IOMMU virtual merging (EXPERIMENTAL)" | |
199 | depends on EXPERIMENTAL | |
200 | default n | |
201 | help | |
202 | Cause IO segments sent to a device for DMA to be merged virtually | |
203 | by the IOMMU when they happen to have been allocated contiguously. | |
204 | This doesn't add pressure to the IOMMU allocator. However, some | |
205 | drivers don't support getting large merged segments coming back | |
206 | from *_map_sg(). Say Y if you know the drivers you are using are | |
207 | properly handling this case. | |
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 | machines, but will use only one CPU of a multiprocessor machine. If | |
218 | you say Y here, the kernel will run on single-processor machines. | |
219 | On a single-processor machine, the kernel will run faster if you say | |
220 | N here. | |
221 | ||
222 | If you don't know what to do here, say Y. | |
223 | ||
224 | config NR_CPUS | |
225 | int "Maximum number of CPUs (2-128)" | |
226 | range 2 128 | |
227 | depends on SMP | |
228 | default "32" | |
229 | ||
230 | config HMT | |
231 | bool "Hardware multithreading" | |
232 | depends on SMP && PPC_PSERIES && BROKEN | |
233 | help | |
234 | This option enables hardware multithreading on RS64 cpus. | |
235 | pSeries systems p620 and p660 have such a cpu type. | |
236 | ||
145e6642 AW |
237 | config ARCH_SELECT_MEMORY_MODEL |
238 | def_bool y | |
239 | ||
240 | config ARCH_FLATMEM_ENABLE | |
241 | def_bool y | |
242 | depends on !NUMA | |
243 | ||
3f22ab27 | 244 | config ARCH_DISCONTIGMEM_ENABLE |
368a0a3a | 245 | def_bool y |
1da177e4 LT |
246 | depends on SMP && PPC_PSERIES |
247 | ||
368a0a3a MK |
248 | config ARCH_DISCONTIGMEM_DEFAULT |
249 | def_bool y | |
250 | depends on ARCH_DISCONTIGMEM_ENABLE | |
251 | ||
252 | config ARCH_FLATMEM_ENABLE | |
253 | def_bool y | |
254 | ||
145e6642 AW |
255 | config ARCH_SPARSEMEM_ENABLE |
256 | def_bool y | |
257 | depends on ARCH_DISCONTIGMEM_ENABLE | |
258 | ||
3f22ab27 DH |
259 | source "mm/Kconfig" |
260 | ||
510f8fa7 | 261 | config HAVE_ARCH_EARLY_PFN_TO_NID |
74b30be2 AW |
262 | def_bool y |
263 | depends on NEED_MULTIPLE_NODES | |
510f8fa7 | 264 | |
641c7673 AW |
265 | # Some NUMA nodes have memory ranges that span |
266 | # other nodes. Even though a pfn is valid and | |
267 | # between a node's start and end pfns, it may not | |
268 | # reside on that node. | |
269 | # | |
270 | # This is a relatively temporary hack that should | |
271 | # be able to go away when sparsemem is fully in | |
272 | # place | |
273 | config NODES_SPAN_OTHER_NODES | |
274 | def_bool y | |
275 | depends on NEED_MULTIPLE_NODES | |
276 | ||
1da177e4 LT |
277 | config NUMA |
278 | bool "NUMA support" | |
145e6642 | 279 | default y if DISCONTIGMEM || SPARSEMEM |
1da177e4 LT |
280 | |
281 | config SCHED_SMT | |
282 | bool "SMT (Hyperthreading) scheduler support" | |
283 | depends on SMP | |
284 | default off | |
285 | help | |
286 | SMT scheduler support improves the CPU scheduler's decision making | |
287 | when dealing with POWER5 cpus at a cost of slightly increased | |
288 | overhead in some places. If unsure say N here. | |
289 | ||
cc19ca86 | 290 | source "kernel/Kconfig.preempt" |
7b625c00 | 291 | source kernel/Kconfig.hz |
1da177e4 LT |
292 | |
293 | config EEH | |
294 | bool "PCI Extended Error Handling (EEH)" if EMBEDDED | |
295 | depends on PPC_PSERIES | |
296 | default y if !EMBEDDED | |
297 | ||
298 | # | |
299 | # Use the generic interrupt handling code in kernel/irq/: | |
300 | # | |
301 | config GENERIC_HARDIRQS | |
302 | bool | |
303 | default y | |
304 | ||
1da177e4 LT |
305 | config PPC_RTAS |
306 | bool | |
fef1c772 | 307 | depends on PPC_PSERIES || PPC_BPA |
1da177e4 LT |
308 | default y |
309 | ||
310 | config RTAS_PROC | |
311 | bool "Proc interface to RTAS" | |
312 | depends on PPC_RTAS | |
b7c2b704 | 313 | default y |
1da177e4 LT |
314 | |
315 | config RTAS_FLASH | |
316 | tristate "Firmware flash interface" | |
317 | depends on RTAS_PROC | |
318 | ||
319 | config SCANLOG | |
320 | tristate "Scanlog dump interface" | |
321 | depends on RTAS_PROC && PPC_PSERIES | |
322 | ||
323 | config LPARCFG | |
324 | tristate "LPAR Configuration Data" | |
325 | depends on PPC_PSERIES || PPC_ISERIES | |
326 | help | |
327 | Provide system capacity information via human readable | |
328 | <key word>=<value> pairs through a /proc/ppc64/lparcfg interface. | |
329 | ||
330 | config SECCOMP | |
331 | bool "Enable seccomp to safely compute untrusted bytecode" | |
332 | depends on PROC_FS | |
333 | default y | |
334 | help | |
335 | This kernel feature is useful for number crunching applications | |
336 | that may need to compute untrusted bytecode during their | |
337 | execution. By using pipes or other transports made available to | |
338 | the process as file descriptors supporting the read/write | |
339 | syscalls, it's possible to isolate those applications in | |
340 | their own address space using seccomp. Once seccomp is | |
341 | enabled via /proc/<pid>/seccomp, it cannot be disabled | |
342 | and the task is only allowed to execute a few safe syscalls | |
343 | defined by each seccomp mode. | |
344 | ||
345 | If unsure, say Y. Only embedded should say N here. | |
346 | ||
60201644 FR |
347 | source "fs/Kconfig.binfmt" |
348 | ||
349 | config HOTPLUG_CPU | |
350 | bool "Support for hot-pluggable CPUs" | |
351 | depends on SMP && EXPERIMENTAL && (PPC_PSERIES || PPC_PMAC) | |
352 | select HOTPLUG | |
353 | ---help--- | |
354 | Say Y here to be able to turn CPUs off and on. | |
355 | ||
356 | Say N if you are unsure. | |
357 | ||
358 | config PROC_DEVICETREE | |
359 | bool "Support for Open Firmware device tree in /proc" | |
360 | depends on !PPC_ISERIES | |
361 | help | |
362 | This option adds a device-tree directory under /proc which contains | |
363 | an image of the device tree that the kernel copies from Open | |
364 | Firmware. If unsure, say Y here. | |
365 | ||
366 | config CMDLINE_BOOL | |
367 | bool "Default bootloader kernel arguments" | |
368 | depends on !PPC_ISERIES | |
369 | ||
370 | config CMDLINE | |
371 | string "Initial kernel command string" | |
372 | depends on CMDLINE_BOOL | |
373 | default "console=ttyS0,9600 console=tty0 root=/dev/sda2" | |
374 | help | |
375 | On some platforms, there is currently no way for the boot loader to | |
376 | pass arguments to the kernel. For these platforms, you can supply | |
377 | some command-line options at build time by entering them here. In | |
378 | most cases you will need to specify the root device here. | |
379 | ||
1da177e4 LT |
380 | endmenu |
381 | ||
5cae841b AV |
382 | config ISA_DMA_API |
383 | bool | |
384 | default y | |
1da177e4 | 385 | |
60201644 | 386 | menu "Bus Options" |
1da177e4 LT |
387 | |
388 | config ISA | |
389 | bool | |
390 | help | |
391 | Find out whether you have ISA slots on your motherboard. ISA is the | |
392 | name of a bus system, i.e. the way the CPU talks to the other stuff | |
393 | inside your box. If you have an Apple machine, say N here; if you | |
394 | have an IBM RS/6000 or pSeries machine or a PReP machine, say Y. If | |
395 | you have an embedded board, consult your board documentation. | |
396 | ||
397 | config SBUS | |
398 | bool | |
399 | ||
400 | config MCA | |
401 | bool | |
402 | ||
403 | config EISA | |
404 | bool | |
405 | ||
406 | config PCI | |
145d01e4 | 407 | bool "support for PCI devices" if (EMBEDDED && PPC_ISERIES) |
1da177e4 LT |
408 | default y |
409 | help | |
410 | Find out whether your system includes a PCI bus. PCI is the name of | |
411 | a bus system, i.e. the way the CPU talks to the other stuff inside | |
412 | your box. If you say Y here, the kernel will include drivers and | |
413 | infrastructure code to support PCI bus devices. | |
414 | ||
415 | config PCI_DOMAINS | |
416 | bool | |
417 | default PCI | |
418 | ||
1da177e4 LT |
419 | source "drivers/pci/Kconfig" |
420 | ||
1da177e4 LT |
421 | source "drivers/pcmcia/Kconfig" |
422 | ||
423 | source "drivers/pci/hotplug/Kconfig" | |
424 | ||
1da177e4 LT |
425 | endmenu |
426 | ||
d5950b43 SR |
427 | source "net/Kconfig" |
428 | ||
1da177e4 LT |
429 | source "drivers/Kconfig" |
430 | ||
431 | source "fs/Kconfig" | |
432 | ||
433 | menu "iSeries device drivers" | |
434 | depends on PPC_ISERIES | |
435 | ||
436 | config VIOCONS | |
437 | tristate "iSeries Virtual Console Support" | |
438 | ||
439 | config VIODASD | |
440 | tristate "iSeries Virtual I/O disk support" | |
441 | help | |
442 | If you are running on an iSeries system and you want to use | |
443 | virtual disks created and managed by OS/400, say Y. | |
444 | ||
445 | config VIOCD | |
446 | tristate "iSeries Virtual I/O CD support" | |
447 | help | |
448 | If you are running Linux on an IBM iSeries system and you want to | |
449 | read a CD drive owned by OS/400, say Y here. | |
450 | ||
451 | config VIOTAPE | |
452 | tristate "iSeries Virtual Tape Support" | |
453 | help | |
454 | If you are running Linux on an iSeries system and you want Linux | |
455 | to read and/or write a tape drive owned by OS/400, say Y here. | |
456 | ||
457 | endmenu | |
458 | ||
459 | config VIOPATH | |
460 | bool | |
461 | depends on VIOCONS || VIODASD || VIOCD || VIOTAPE || VETH | |
462 | default y | |
463 | ||
464 | source "arch/ppc64/oprofile/Kconfig" | |
465 | ||
466 | source "arch/ppc64/Kconfig.debug" | |
467 | ||
468 | source "security/Kconfig" | |
469 | ||
470 | config KEYS_COMPAT | |
471 | bool | |
472 | depends on COMPAT && KEYS | |
473 | default y | |
474 | ||
475 | source "crypto/Kconfig" | |
476 | ||
477 | source "lib/Kconfig" |