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1 | # For a description of the syntax of this configuration file, |
2 | # see Documentation/kbuild/kconfig-language.txt. | |
3 | # | |
4 | ||
5 | mainmenu "Linux/PowerPC Kernel Configuration" | |
6 | ||
7 | config PPC64 | |
8 | bool "64-bit kernel" | |
9 | default n | |
10 | help | |
11 | This option selects whether a 32-bit or a 64-bit kernel | |
12 | will be built. | |
13 | ||
14 | config PPC32 | |
15 | bool | |
16 | default y if !PPC64 | |
17 | ||
18 | config 64BIT | |
19 | bool | |
20 | default y if PPC64 | |
21 | ||
22 | config PPC_MERGE | |
23 | def_bool y | |
24 | ||
25 | config MMU | |
26 | bool | |
27 | default y | |
28 | ||
29 | config UID16 | |
30 | bool | |
31 | ||
32 | config GENERIC_HARDIRQS | |
33 | bool | |
34 | default y | |
35 | ||
36 | config RWSEM_GENERIC_SPINLOCK | |
37 | bool | |
38 | ||
39 | config RWSEM_XCHGADD_ALGORITHM | |
40 | bool | |
41 | default y | |
42 | ||
43 | config GENERIC_CALIBRATE_DELAY | |
44 | bool | |
45 | default y | |
46 | ||
47 | config PPC | |
48 | bool | |
49 | default y | |
50 | ||
51 | config EARLY_PRINTK | |
52 | bool | |
51d3082f | 53 | default y |
14cf11af PM |
54 | |
55 | config COMPAT | |
56 | bool | |
57 | default y if PPC64 | |
58 | ||
59 | config SYSVIPC_COMPAT | |
60 | bool | |
61 | depends on COMPAT && SYSVIPC | |
62 | default y | |
63 | ||
64 | # All PPC32s use generic nvram driver through ppc_md | |
65 | config GENERIC_NVRAM | |
66 | bool | |
67 | default y if PPC32 | |
68 | ||
69 | config SCHED_NO_NO_OMIT_FRAME_POINTER | |
70 | bool | |
71 | default y | |
72 | ||
73 | config ARCH_MAY_HAVE_PC_FDC | |
74 | bool | |
75 | default y | |
76 | ||
77 | menu "Processor support" | |
78 | choice | |
79 | prompt "Processor Type" | |
80 | depends on PPC32 | |
81 | default 6xx | |
82 | ||
83 | config 6xx | |
84 | bool "6xx/7xx/74xx" | |
85 | select PPC_FPU | |
86 | help | |
87 | There are four families of PowerPC chips supported. The more common | |
88 | types (601, 603, 604, 740, 750, 7400), the Motorola embedded | |
89 | versions (821, 823, 850, 855, 860, 52xx, 82xx, 83xx), the AMCC | |
90 | embedded versions (403 and 405) and the high end 64 bit Power | |
91 | processors (POWER 3, POWER4, and IBM PPC970 also known as G5). | |
92 | ||
93 | Unless you are building a kernel for one of the embedded processor | |
94 | systems, 64 bit IBM RS/6000 or an Apple G5, choose 6xx. | |
95 | Note that the kernel runs in 32-bit mode even on 64-bit chips. | |
96 | ||
97 | config PPC_52xx | |
98 | bool "Freescale 52xx" | |
99 | ||
100 | config PPC_82xx | |
101 | bool "Freescale 82xx" | |
102 | ||
103 | config PPC_83xx | |
104 | bool "Freescale 83xx" | |
105 | ||
106 | config 40x | |
107 | bool "AMCC 40x" | |
108 | ||
109 | config 44x | |
110 | bool "AMCC 44x" | |
111 | ||
14cf11af PM |
112 | config 8xx |
113 | bool "Freescale 8xx" | |
114 | ||
115 | config E200 | |
116 | bool "Freescale e200" | |
117 | ||
118 | config E500 | |
119 | bool "Freescale e500" | |
120 | endchoice | |
121 | ||
122 | config POWER4_ONLY | |
123 | bool "Optimize for POWER4" | |
187a0067 | 124 | depends on PPC64 |
14cf11af PM |
125 | default n |
126 | ---help--- | |
127 | Cause the compiler to optimize for POWER4/POWER5/PPC970 processors. | |
128 | The resulting binary will not work on POWER3 or RS64 processors | |
129 | when compiled with binutils 2.15 or later. | |
130 | ||
131 | config POWER3 | |
132 | bool | |
187a0067 | 133 | depends on PPC64 |
14cf11af PM |
134 | default y if !POWER4_ONLY |
135 | ||
136 | config POWER4 | |
187a0067 | 137 | depends on PPC64 |
14cf11af PM |
138 | def_bool y |
139 | ||
140 | config PPC_FPU | |
187a0067 PM |
141 | bool |
142 | default y if PPC64 | |
14cf11af PM |
143 | |
144 | config BOOKE | |
145 | bool | |
146 | depends on E200 || E500 | |
147 | default y | |
148 | ||
149 | config FSL_BOOKE | |
150 | bool | |
151 | depends on E200 || E500 | |
152 | default y | |
153 | ||
154 | config PTE_64BIT | |
155 | bool | |
156 | depends on 44x || E500 | |
157 | default y if 44x | |
158 | default y if E500 && PHYS_64BIT | |
159 | ||
160 | config PHYS_64BIT | |
161 | bool 'Large physical address support' if E500 | |
162 | depends on 44x || E500 | |
163 | default y if 44x | |
164 | ---help--- | |
165 | This option enables kernel support for larger than 32-bit physical | |
166 | addresses. This features is not be available on all e500 cores. | |
167 | ||
168 | If in doubt, say N here. | |
169 | ||
170 | config ALTIVEC | |
171 | bool "AltiVec Support" | |
172 | depends on 6xx || POWER4 | |
173 | ---help--- | |
174 | This option enables kernel support for the Altivec extensions to the | |
175 | PowerPC processor. The kernel currently supports saving and restoring | |
176 | altivec registers, and turning on the 'altivec enable' bit so user | |
177 | processes can execute altivec instructions. | |
178 | ||
179 | This option is only usefully if you have a processor that supports | |
180 | altivec (G4, otherwise known as 74xx series), but does not have | |
181 | any affect on a non-altivec cpu (it does, however add code to the | |
182 | kernel). | |
183 | ||
184 | If in doubt, say Y here. | |
185 | ||
186 | config SPE | |
187 | bool "SPE Support" | |
188 | depends on E200 || E500 | |
189 | ---help--- | |
190 | This option enables kernel support for the Signal Processing | |
191 | Extensions (SPE) to the PowerPC processor. The kernel currently | |
192 | supports saving and restoring SPE registers, and turning on the | |
193 | 'spe enable' bit so user processes can execute SPE instructions. | |
194 | ||
195 | This option is only useful if you have a processor that supports | |
196 | SPE (e500, otherwise known as 85xx series), but does not have any | |
197 | effect on a non-spe cpu (it does, however add code to the kernel). | |
198 | ||
199 | If in doubt, say Y here. | |
200 | ||
201 | config PPC_STD_MMU | |
202 | bool | |
203 | depends on 6xx || POWER3 || POWER4 || PPC64 | |
204 | default y | |
205 | ||
206 | config PPC_STD_MMU_32 | |
207 | def_bool y | |
208 | depends on PPC_STD_MMU && PPC32 | |
209 | ||
210 | config SMP | |
211 | depends on PPC_STD_MMU | |
212 | bool "Symmetric multi-processing support" | |
213 | ---help--- | |
214 | This enables support for systems with more than one CPU. If you have | |
215 | a system with only one CPU, say N. If you have a system with more | |
216 | than one CPU, say Y. Note that the kernel does not currently | |
217 | support SMP machines with 603/603e/603ev or PPC750 ("G3") processors | |
218 | since they have inadequate hardware support for multiprocessor | |
219 | operation. | |
220 | ||
221 | If you say N here, the kernel will run on single and multiprocessor | |
222 | machines, but will use only one CPU of a multiprocessor machine. If | |
223 | you say Y here, the kernel will run on single-processor machines. | |
224 | On a single-processor machine, the kernel will run faster if you say | |
225 | N here. | |
226 | ||
227 | If you don't know what to do here, say N. | |
228 | ||
229 | config NR_CPUS | |
e8a167ac | 230 | int "Maximum number of CPUs (2-128)" |
14cf11af PM |
231 | range 2 128 |
232 | depends on SMP | |
233 | default "32" if PPC64 | |
234 | default "4" | |
235 | ||
236 | config NOT_COHERENT_CACHE | |
237 | bool | |
238 | depends on 4xx || 8xx || E200 | |
239 | default y | |
240 | endmenu | |
241 | ||
242 | source "init/Kconfig" | |
243 | ||
244 | menu "Platform support" | |
245 | depends on PPC64 || 6xx | |
246 | ||
247 | choice | |
248 | prompt "Machine type" | |
249 | default PPC_MULTIPLATFORM | |
250 | ||
251 | config PPC_MULTIPLATFORM | |
252 | bool "Generic desktop/server/laptop" | |
253 | help | |
254 | Select this option if configuring for an IBM pSeries or | |
255 | RS/6000 machine, an Apple machine, or a PReP, CHRP, | |
256 | Maple or Cell-based machine. | |
257 | ||
258 | config PPC_ISERIES | |
259 | bool "IBM Legacy iSeries" | |
260 | depends on PPC64 | |
261 | ||
262 | config EMBEDDED6xx | |
263 | bool "Embedded 6xx/7xx/7xxx-based board" | |
5be396b0 | 264 | depends on PPC32 && BROKEN |
14cf11af PM |
265 | |
266 | config APUS | |
267 | bool "Amiga-APUS" | |
268 | depends on PPC32 && BROKEN | |
269 | help | |
270 | Select APUS if configuring for a PowerUP Amiga. | |
271 | More information is available at: | |
272 | <http://linux-apus.sourceforge.net/>. | |
273 | endchoice | |
274 | ||
275 | config PPC_PSERIES | |
276 | depends on PPC_MULTIPLATFORM && PPC64 | |
277 | bool " IBM pSeries & new (POWER5-based) iSeries" | |
f9bd170a | 278 | select PPC_I8259 |
033ef338 PM |
279 | select PPC_RTAS |
280 | select RTAS_ERROR_LOGGING | |
14cf11af PM |
281 | default y |
282 | ||
283 | config PPC_CHRP | |
284 | bool " Common Hardware Reference Platform (CHRP) based machines" | |
285 | depends on PPC_MULTIPLATFORM && PPC32 | |
f9bd170a | 286 | select PPC_I8259 |
25635c71 | 287 | select PPC_INDIRECT_PCI |
033ef338 | 288 | select PPC_RTAS |
830825d6 | 289 | select PPC_MPC106 |
14cf11af PM |
290 | default y |
291 | ||
292 | config PPC_PMAC | |
293 | bool " Apple PowerMac based machines" | |
294 | depends on PPC_MULTIPLATFORM | |
25635c71 | 295 | select PPC_INDIRECT_PCI if PPC32 |
b6a4ce52 | 296 | select PPC_MPC106 if PPC32 |
14cf11af PM |
297 | default y |
298 | ||
299 | config PPC_PMAC64 | |
300 | bool | |
301 | depends on PPC_PMAC && POWER4 | |
35499c01 | 302 | select U3_DART |
8ad200d7 | 303 | select GENERIC_TBSYNC |
14cf11af PM |
304 | default y |
305 | ||
306 | config PPC_PREP | |
307 | bool " PowerPC Reference Platform (PReP) based machines" | |
5be396b0 | 308 | depends on PPC_MULTIPLATFORM && PPC32 && BROKEN |
f9bd170a | 309 | select PPC_I8259 |
25635c71 | 310 | select PPC_INDIRECT_PCI |
14cf11af PM |
311 | default y |
312 | ||
313 | config PPC_MAPLE | |
314 | depends on PPC_MULTIPLATFORM && PPC64 | |
315 | bool " Maple 970FX Evaluation Board" | |
316 | select U3_DART | |
317 | select MPIC_BROKEN_U3 | |
8ad200d7 | 318 | select GENERIC_TBSYNC |
14cf11af PM |
319 | default n |
320 | help | |
321 | This option enables support for the Maple 970FX Evaluation Board. | |
322 | For more informations, refer to <http://www.970eval.com> | |
323 | ||
f3f66f59 AB |
324 | config PPC_CELL |
325 | bool " Cell Broadband Processor Architecture" | |
14cf11af | 326 | depends on PPC_MULTIPLATFORM && PPC64 |
033ef338 | 327 | select PPC_RTAS |
edf03c1e | 328 | select MMIO_NVRAM |
14cf11af PM |
329 | |
330 | config PPC_OF | |
331 | bool | |
187a0067 | 332 | depends on PPC_MULTIPLATFORM # for now |
14cf11af PM |
333 | default y |
334 | ||
335 | config XICS | |
336 | depends on PPC_PSERIES | |
337 | bool | |
338 | default y | |
339 | ||
340 | config U3_DART | |
341 | bool | |
342 | depends on PPC_MULTIPLATFORM && PPC64 | |
343 | default n | |
344 | ||
345 | config MPIC | |
bbd0abda | 346 | depends on PPC_PSERIES || PPC_PMAC || PPC_MAPLE || PPC_CHRP |
14cf11af PM |
347 | bool |
348 | default y | |
349 | ||
033ef338 PM |
350 | config PPC_RTAS |
351 | bool | |
352 | default n | |
353 | ||
354 | config RTAS_ERROR_LOGGING | |
355 | bool | |
356 | depends on PPC_RTAS | |
357 | default n | |
358 | ||
f4fcbbe9 PM |
359 | config RTAS_PROC |
360 | bool "Proc interface to RTAS" | |
e9add2ee | 361 | depends on PPC_RTAS |
f4fcbbe9 PM |
362 | default y |
363 | ||
364 | config RTAS_FLASH | |
365 | tristate "Firmware flash interface" | |
366 | depends on PPC64 && RTAS_PROC | |
e9add2ee | 367 | |
edf03c1e AB |
368 | config MMIO_NVRAM |
369 | bool | |
370 | default n | |
371 | ||
14cf11af PM |
372 | config MPIC_BROKEN_U3 |
373 | bool | |
374 | depends on PPC_MAPLE | |
375 | default y | |
376 | ||
f3f66f59 AB |
377 | config CELL_IIC |
378 | depends on PPC_CELL | |
14cf11af PM |
379 | bool |
380 | default y | |
381 | ||
398ab1fc ME |
382 | config CRASH_DUMP |
383 | bool "kernel crash dumps (EXPERIMENTAL)" | |
384 | depends on PPC_MULTIPLATFORM | |
385 | depends on EXPERIMENTAL | |
386 | help | |
387 | Build a kernel suitable for use as a kdump capture kernel. | |
388 | The kernel will be linked at a different address than normal, and | |
389 | so can only be used for Kdump. | |
390 | ||
391 | Don't change this unless you know what you are doing. | |
392 | ||
14cf11af PM |
393 | config IBMVIO |
394 | depends on PPC_PSERIES || PPC_ISERIES | |
395 | bool | |
396 | default y | |
397 | ||
d7a30103 HS |
398 | config IBMEBUS |
399 | depends on PPC_PSERIES | |
400 | bool "Support for GX bus based adapters" | |
401 | default y | |
402 | help | |
403 | Bus device driver for GX bus based adapters. | |
404 | ||
830825d6 PM |
405 | config PPC_MPC106 |
406 | bool | |
407 | default n | |
408 | ||
8ad200d7 PM |
409 | config GENERIC_TBSYNC |
410 | bool | |
411 | default y if CONFIG_PPC32 && CONFIG_SMP | |
412 | default n | |
413 | ||
14cf11af PM |
414 | source "drivers/cpufreq/Kconfig" |
415 | ||
416 | config CPU_FREQ_PMAC | |
417 | bool "Support for Apple PowerBooks" | |
418 | depends on CPU_FREQ && ADB_PMU && PPC32 | |
419 | select CPU_FREQ_TABLE | |
420 | help | |
421 | This adds support for frequency switching on Apple PowerBooks, | |
422 | this currently includes some models of iBook & Titanium | |
423 | PowerBook. | |
424 | ||
4350147a BH |
425 | config CPU_FREQ_PMAC64 |
426 | bool "Support for some Apple G5s" | |
427 | depends on CPU_FREQ && PMAC_SMU && PPC64 | |
428 | select CPU_FREQ_TABLE | |
429 | help | |
430 | This adds support for frequency switching on Apple iMac G5, | |
431 | and some of the more recent desktop G5 machines as well. | |
432 | ||
14cf11af PM |
433 | config PPC601_SYNC_FIX |
434 | bool "Workarounds for PPC601 bugs" | |
435 | depends on 6xx && (PPC_PREP || PPC_PMAC) | |
436 | help | |
437 | Some versions of the PPC601 (the first PowerPC chip) have bugs which | |
438 | mean that extra synchronization instructions are required near | |
439 | certain instructions, typically those that make major changes to the | |
440 | CPU state. These extra instructions reduce performance slightly. | |
441 | If you say N here, these extra instructions will not be included, | |
442 | resulting in a kernel which will run faster but may not run at all | |
443 | on some systems with the PPC601 chip. | |
444 | ||
445 | If in doubt, say Y here. | |
446 | ||
447 | config TAU | |
448 | bool "Thermal Management Support" | |
449 | depends on 6xx | |
450 | help | |
451 | G3 and G4 processors have an on-chip temperature sensor called the | |
452 | 'Thermal Assist Unit (TAU)', which, in theory, can measure the on-die | |
453 | temperature within 2-4 degrees Celsius. This option shows the current | |
454 | on-die temperature in /proc/cpuinfo if the cpu supports it. | |
455 | ||
456 | Unfortunately, on some chip revisions, this sensor is very inaccurate | |
457 | and in some cases, does not work at all, so don't assume the cpu | |
458 | temp is actually what /proc/cpuinfo says it is. | |
459 | ||
460 | config TAU_INT | |
461 | bool "Interrupt driven TAU driver (DANGEROUS)" | |
462 | depends on TAU | |
463 | ---help--- | |
464 | The TAU supports an interrupt driven mode which causes an interrupt | |
465 | whenever the temperature goes out of range. This is the fastest way | |
466 | to get notified the temp has exceeded a range. With this option off, | |
467 | a timer is used to re-check the temperature periodically. | |
468 | ||
469 | However, on some cpus it appears that the TAU interrupt hardware | |
470 | is buggy and can cause a situation which would lead unexplained hard | |
471 | lockups. | |
472 | ||
473 | Unless you are extending the TAU driver, or enjoy kernel/hardware | |
474 | debugging, leave this option off. | |
475 | ||
476 | config TAU_AVERAGE | |
477 | bool "Average high and low temp" | |
478 | depends on TAU | |
479 | ---help--- | |
480 | The TAU hardware can compare the temperature to an upper and lower | |
481 | bound. The default behavior is to show both the upper and lower | |
482 | bound in /proc/cpuinfo. If the range is large, the temperature is | |
483 | either changing a lot, or the TAU hardware is broken (likely on some | |
484 | G4's). If the range is small (around 4 degrees), the temperature is | |
485 | relatively stable. If you say Y here, a single temperature value, | |
486 | halfway between the upper and lower bounds, will be reported in | |
487 | /proc/cpuinfo. | |
488 | ||
489 | If in doubt, say N here. | |
490 | endmenu | |
491 | ||
492 | source arch/powerpc/platforms/embedded6xx/Kconfig | |
493 | source arch/powerpc/platforms/4xx/Kconfig | |
494 | source arch/powerpc/platforms/85xx/Kconfig | |
495 | source arch/powerpc/platforms/8xx/Kconfig | |
67207b96 | 496 | source arch/powerpc/platforms/cell/Kconfig |
14cf11af PM |
497 | |
498 | menu "Kernel options" | |
499 | ||
500 | config HIGHMEM | |
501 | bool "High memory support" | |
502 | depends on PPC32 | |
503 | ||
504 | source kernel/Kconfig.hz | |
505 | source kernel/Kconfig.preempt | |
506 | source "fs/Kconfig.binfmt" | |
507 | ||
508 | # We optimistically allocate largepages from the VM, so make the limit | |
509 | # large enough (16MB). This badly named config option is actually | |
510 | # max order + 1 | |
511 | config FORCE_MAX_ZONEORDER | |
512 | int | |
513 | depends on PPC64 | |
02864867 | 514 | default "9" if PPC_64K_PAGES |
14cf11af PM |
515 | default "13" |
516 | ||
517 | config MATH_EMULATION | |
518 | bool "Math emulation" | |
519 | depends on 4xx || 8xx || E200 || E500 | |
520 | ---help--- | |
521 | Some PowerPC chips designed for embedded applications do not have | |
522 | a floating-point unit and therefore do not implement the | |
523 | floating-point instructions in the PowerPC instruction set. If you | |
524 | say Y here, the kernel will include code to emulate a floating-point | |
525 | unit, which will allow programs that use floating-point | |
526 | instructions to run. | |
527 | ||
528 | config IOMMU_VMERGE | |
529 | bool "Enable IOMMU virtual merging (EXPERIMENTAL)" | |
530 | depends on EXPERIMENTAL && PPC64 | |
531 | default n | |
532 | help | |
533 | Cause IO segments sent to a device for DMA to be merged virtually | |
534 | by the IOMMU when they happen to have been allocated contiguously. | |
535 | This doesn't add pressure to the IOMMU allocator. However, some | |
536 | drivers don't support getting large merged segments coming back | |
537 | from *_map_sg(). Say Y if you know the drivers you are using are | |
538 | properly handling this case. | |
539 | ||
540 | config HOTPLUG_CPU | |
541 | bool "Support for enabling/disabling CPUs" | |
542 | depends on SMP && HOTPLUG && EXPERIMENTAL && (PPC_PSERIES || PPC_PMAC) | |
543 | ---help--- | |
544 | Say Y here to be able to disable and re-enable individual | |
545 | CPUs at runtime on SMP machines. | |
546 | ||
547 | Say N if you are unsure. | |
548 | ||
549 | config KEXEC | |
550 | bool "kexec system call (EXPERIMENTAL)" | |
551 | depends on PPC_MULTIPLATFORM && EXPERIMENTAL | |
552 | help | |
553 | kexec is a system call that implements the ability to shutdown your | |
554 | current kernel, and to start another kernel. It is like a reboot | |
555 | but it is indepedent of the system firmware. And like a reboot | |
556 | you can start any kernel with it, not just Linux. | |
557 | ||
558 | The name comes from the similiarity to the exec system call. | |
559 | ||
560 | It is an ongoing process to be certain the hardware in a machine | |
561 | is properly shutdown, so do not be surprised if this code does not | |
562 | initially work for you. It may help to enable device hotplugging | |
563 | support. As of this writing the exact hardware interface is | |
564 | strongly in flux, so no good recommendation can be made. | |
565 | ||
566 | config EMBEDDEDBOOT | |
567 | bool | |
568 | depends on 8xx || 8260 | |
569 | default y | |
570 | ||
571 | config PC_KEYBOARD | |
572 | bool "PC PS/2 style Keyboard" | |
573 | depends on 4xx || CPM2 | |
574 | ||
575 | config PPCBUG_NVRAM | |
576 | bool "Enable reading PPCBUG NVRAM during boot" if PPLUS || LOPEC | |
577 | default y if PPC_PREP | |
578 | ||
579 | config IRQ_ALL_CPUS | |
580 | bool "Distribute interrupts on all CPUs by default" | |
581 | depends on SMP && !MV64360 | |
582 | help | |
583 | This option gives the kernel permission to distribute IRQs across | |
584 | multiple CPUs. Saying N here will route all IRQs to the first | |
585 | CPU. Generally saying Y is safe, although some problems have been | |
586 | reported with SMP Power Macintoshes with this option enabled. | |
587 | ||
588 | source "arch/powerpc/platforms/pseries/Kconfig" | |
589 | ||
ffa27b6b AW |
590 | config NUMA |
591 | bool "NUMA support" | |
592 | depends on PPC64 | |
593 | default y if SMP && PPC_PSERIES | |
594 | ||
14cf11af PM |
595 | config ARCH_SELECT_MEMORY_MODEL |
596 | def_bool y | |
597 | depends on PPC64 | |
598 | ||
599 | config ARCH_FLATMEM_ENABLE | |
9100b205 AW |
600 | def_bool y |
601 | depends on (PPC64 && !NUMA) || PPC32 | |
14cf11af | 602 | |
45fb6cea | 603 | config ARCH_SPARSEMEM_ENABLE |
14cf11af | 604 | def_bool y |
9100b205 | 605 | depends on PPC64 |
14cf11af | 606 | |
45fb6cea | 607 | config ARCH_SPARSEMEM_DEFAULT |
14cf11af | 608 | def_bool y |
45fb6cea | 609 | depends on SMP && PPC_PSERIES |
14cf11af PM |
610 | |
611 | source "mm/Kconfig" | |
612 | ||
613 | config HAVE_ARCH_EARLY_PFN_TO_NID | |
614 | def_bool y | |
615 | depends on NEED_MULTIPLE_NODES | |
616 | ||
7e9191da MK |
617 | config ARCH_MEMORY_PROBE |
618 | def_bool y | |
619 | depends on MEMORY_HOTPLUG | |
620 | ||
3c726f8d BH |
621 | config PPC_64K_PAGES |
622 | bool "64k page size" | |
863c84b9 | 623 | depends on PPC64 |
3c726f8d BH |
624 | help |
625 | This option changes the kernel logical page size to 64k. On machines | |
626 | without processor support for 64k pages, the kernel will simulate | |
627 | them by loading each individual 4k page on demand transparently, | |
628 | while on hardware with such support, it will be used to map | |
629 | normal application pages. | |
630 | ||
14cf11af PM |
631 | config SCHED_SMT |
632 | bool "SMT (Hyperthreading) scheduler support" | |
633 | depends on PPC64 && SMP | |
634 | default off | |
635 | help | |
636 | SMT scheduler support improves the CPU scheduler's decision making | |
637 | when dealing with POWER5 cpus at a cost of slightly increased | |
638 | overhead in some places. If unsure say N here. | |
639 | ||
640 | config PROC_DEVICETREE | |
5f296755 PM |
641 | bool "Support for device tree in /proc" |
642 | depends on PROC_FS | |
14cf11af PM |
643 | help |
644 | This option adds a device-tree directory under /proc which contains | |
645 | an image of the device tree that the kernel copies from Open | |
5f296755 | 646 | Firmware or other boot firmware. If unsure, say Y here. |
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647 | |
648 | source "arch/powerpc/platforms/prep/Kconfig" | |
649 | ||
650 | config CMDLINE_BOOL | |
651 | bool "Default bootloader kernel arguments" | |
652 | depends on !PPC_ISERIES | |
653 | ||
654 | config CMDLINE | |
655 | string "Initial kernel command string" | |
656 | depends on CMDLINE_BOOL | |
657 | default "console=ttyS0,9600 console=tty0 root=/dev/sda2" | |
658 | help | |
659 | On some platforms, there is currently no way for the boot loader to | |
660 | pass arguments to the kernel. For these platforms, you can supply | |
661 | some command-line options at build time by entering them here. In | |
662 | most cases you will need to specify the root device here. | |
663 | ||
664 | if !44x || BROKEN | |
665 | source kernel/power/Kconfig | |
666 | endif | |
667 | ||
668 | config SECCOMP | |
669 | bool "Enable seccomp to safely compute untrusted bytecode" | |
670 | depends on PROC_FS | |
671 | default y | |
672 | help | |
673 | This kernel feature is useful for number crunching applications | |
674 | that may need to compute untrusted bytecode during their | |
675 | execution. By using pipes or other transports made available to | |
676 | the process as file descriptors supporting the read/write | |
677 | syscalls, it's possible to isolate those applications in | |
678 | their own address space using seccomp. Once seccomp is | |
679 | enabled via /proc/<pid>/seccomp, it cannot be disabled | |
680 | and the task is only allowed to execute a few safe syscalls | |
681 | defined by each seccomp mode. | |
682 | ||
683 | If unsure, say Y. Only embedded should say N here. | |
684 | ||
685 | endmenu | |
686 | ||
687 | config ISA_DMA_API | |
688 | bool | |
689 | default y | |
690 | ||
691 | menu "Bus options" | |
692 | ||
693 | config ISA | |
694 | bool "Support for ISA-bus hardware" | |
695 | depends on PPC_PREP || PPC_CHRP | |
f9bd170a | 696 | select PPC_I8259 |
14cf11af PM |
697 | help |
698 | Find out whether you have ISA slots on your motherboard. ISA is the | |
699 | name of a bus system, i.e. the way the CPU talks to the other stuff | |
700 | inside your box. If you have an Apple machine, say N here; if you | |
701 | have an IBM RS/6000 or pSeries machine or a PReP machine, say Y. If | |
702 | you have an embedded board, consult your board documentation. | |
703 | ||
704 | config GENERIC_ISA_DMA | |
705 | bool | |
706 | depends on PPC64 || POWER4 || 6xx && !CPM2 | |
707 | default y | |
708 | ||
f9bd170a PM |
709 | config PPC_I8259 |
710 | bool | |
711 | default y if 85xx | |
712 | default n | |
713 | ||
25635c71 PM |
714 | config PPC_INDIRECT_PCI |
715 | bool | |
716 | depends on PCI | |
717 | default y if 40x || 44x || 85xx || 83xx | |
718 | default n | |
719 | ||
14cf11af PM |
720 | config EISA |
721 | bool | |
722 | ||
723 | config SBUS | |
724 | bool | |
725 | ||
726 | # Yes MCA RS/6000s exist but Linux-PPC does not currently support any | |
727 | config MCA | |
728 | bool | |
729 | ||
730 | config PCI | |
731 | bool "PCI support" if 40x || CPM2 || 83xx || 85xx || PPC_MPC52xx || (EMBEDDED && PPC_ISERIES) | |
732 | default y if !40x && !CPM2 && !8xx && !APUS && !83xx && !85xx | |
733 | default PCI_PERMEDIA if !4xx && !CPM2 && !8xx && APUS | |
734 | default PCI_QSPAN if !4xx && !CPM2 && 8xx | |
735 | help | |
736 | Find out whether your system includes a PCI bus. PCI is the name of | |
737 | a bus system, i.e. the way the CPU talks to the other stuff inside | |
738 | your box. If you say Y here, the kernel will include drivers and | |
739 | infrastructure code to support PCI bus devices. | |
740 | ||
741 | config PCI_DOMAINS | |
742 | bool | |
743 | default PCI | |
744 | ||
745 | config MPC83xx_PCI2 | |
746 | bool " Supprt for 2nd PCI host controller" | |
747 | depends on PCI && MPC834x | |
748 | default y if MPC834x_SYS | |
749 | ||
750 | config PCI_QSPAN | |
751 | bool "QSpan PCI" | |
752 | depends on !4xx && !CPM2 && 8xx | |
f9bd170a | 753 | select PPC_I8259 |
14cf11af PM |
754 | help |
755 | Say Y here if you have a system based on a Motorola 8xx-series | |
756 | embedded processor with a QSPAN PCI interface, otherwise say N. | |
757 | ||
758 | config PCI_8260 | |
759 | bool | |
760 | depends on PCI && 8260 | |
25635c71 | 761 | select PPC_INDIRECT_PCI |
14cf11af PM |
762 | default y |
763 | ||
764 | config 8260_PCI9 | |
765 | bool " Enable workaround for MPC826x erratum PCI 9" | |
766 | depends on PCI_8260 && !ADS8272 | |
767 | default y | |
768 | ||
769 | choice | |
770 | prompt " IDMA channel for PCI 9 workaround" | |
771 | depends on 8260_PCI9 | |
772 | ||
773 | config 8260_PCI9_IDMA1 | |
774 | bool "IDMA1" | |
775 | ||
776 | config 8260_PCI9_IDMA2 | |
777 | bool "IDMA2" | |
778 | ||
779 | config 8260_PCI9_IDMA3 | |
780 | bool "IDMA3" | |
781 | ||
782 | config 8260_PCI9_IDMA4 | |
783 | bool "IDMA4" | |
784 | ||
785 | endchoice | |
786 | ||
787 | source "drivers/pci/Kconfig" | |
788 | ||
789 | source "drivers/pcmcia/Kconfig" | |
790 | ||
791 | source "drivers/pci/hotplug/Kconfig" | |
792 | ||
793 | endmenu | |
794 | ||
795 | menu "Advanced setup" | |
796 | depends on PPC32 | |
797 | ||
798 | config ADVANCED_OPTIONS | |
799 | bool "Prompt for advanced kernel configuration options" | |
800 | help | |
801 | This option will enable prompting for a variety of advanced kernel | |
802 | configuration options. These options can cause the kernel to not | |
803 | work if they are set incorrectly, but can be used to optimize certain | |
804 | aspects of kernel memory management. | |
805 | ||
806 | Unless you know what you are doing, say N here. | |
807 | ||
808 | comment "Default settings for advanced configuration options are used" | |
809 | depends on !ADVANCED_OPTIONS | |
810 | ||
811 | config HIGHMEM_START_BOOL | |
812 | bool "Set high memory pool address" | |
813 | depends on ADVANCED_OPTIONS && HIGHMEM | |
814 | help | |
815 | This option allows you to set the base address of the kernel virtual | |
816 | area used to map high memory pages. This can be useful in | |
817 | optimizing the layout of kernel virtual memory. | |
818 | ||
819 | Say N here unless you know what you are doing. | |
820 | ||
821 | config HIGHMEM_START | |
822 | hex "Virtual start address of high memory pool" if HIGHMEM_START_BOOL | |
823 | default "0xfe000000" | |
824 | ||
825 | config LOWMEM_SIZE_BOOL | |
826 | bool "Set maximum low memory" | |
827 | depends on ADVANCED_OPTIONS | |
828 | help | |
829 | This option allows you to set the maximum amount of memory which | |
830 | will be used as "low memory", that is, memory which the kernel can | |
831 | access directly, without having to set up a kernel virtual mapping. | |
832 | This can be useful in optimizing the layout of kernel virtual | |
833 | memory. | |
834 | ||
835 | Say N here unless you know what you are doing. | |
836 | ||
837 | config LOWMEM_SIZE | |
838 | hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL | |
839 | default "0x30000000" | |
840 | ||
841 | config KERNEL_START_BOOL | |
842 | bool "Set custom kernel base address" | |
843 | depends on ADVANCED_OPTIONS | |
844 | help | |
845 | This option allows you to set the kernel virtual address at which | |
846 | the kernel will map low memory (the kernel image will be linked at | |
847 | this address). This can be useful in optimizing the virtual memory | |
848 | layout of the system. | |
849 | ||
850 | Say N here unless you know what you are doing. | |
851 | ||
852 | config KERNEL_START | |
853 | hex "Virtual address of kernel base" if KERNEL_START_BOOL | |
854 | default "0xc0000000" | |
855 | ||
856 | config TASK_SIZE_BOOL | |
857 | bool "Set custom user task size" | |
858 | depends on ADVANCED_OPTIONS | |
859 | help | |
860 | This option allows you to set the amount of virtual address space | |
861 | allocated to user tasks. This can be useful in optimizing the | |
862 | virtual memory layout of the system. | |
863 | ||
864 | Say N here unless you know what you are doing. | |
865 | ||
866 | config TASK_SIZE | |
867 | hex "Size of user task space" if TASK_SIZE_BOOL | |
868 | default "0x80000000" | |
869 | ||
870 | config CONSISTENT_START_BOOL | |
871 | bool "Set custom consistent memory pool address" | |
872 | depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE | |
873 | help | |
874 | This option allows you to set the base virtual address | |
875 | of the the consistent memory pool. This pool of virtual | |
876 | memory is used to make consistent memory allocations. | |
877 | ||
878 | config CONSISTENT_START | |
879 | hex "Base virtual address of consistent memory pool" if CONSISTENT_START_BOOL | |
880 | default "0xff100000" if NOT_COHERENT_CACHE | |
881 | ||
882 | config CONSISTENT_SIZE_BOOL | |
883 | bool "Set custom consistent memory pool size" | |
884 | depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE | |
885 | help | |
886 | This option allows you to set the size of the the | |
887 | consistent memory pool. This pool of virtual memory | |
888 | is used to make consistent memory allocations. | |
889 | ||
890 | config CONSISTENT_SIZE | |
891 | hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL | |
892 | default "0x00200000" if NOT_COHERENT_CACHE | |
893 | ||
894 | config BOOT_LOAD_BOOL | |
895 | bool "Set the boot link/load address" | |
896 | depends on ADVANCED_OPTIONS && !PPC_MULTIPLATFORM | |
897 | help | |
898 | This option allows you to set the initial load address of the zImage | |
899 | or zImage.initrd file. This can be useful if you are on a board | |
900 | which has a small amount of memory. | |
901 | ||
902 | Say N here unless you know what you are doing. | |
903 | ||
904 | config BOOT_LOAD | |
905 | hex "Link/load address for booting" if BOOT_LOAD_BOOL | |
906 | default "0x00400000" if 40x || 8xx || 8260 | |
907 | default "0x01000000" if 44x | |
908 | default "0x00800000" | |
909 | ||
910 | config PIN_TLB | |
911 | bool "Pinned Kernel TLBs (860 ONLY)" | |
912 | depends on ADVANCED_OPTIONS && 8xx | |
913 | endmenu | |
914 | ||
cabb5587 SR |
915 | if PPC64 |
916 | config KERNEL_START | |
917 | hex | |
eeb2d218 | 918 | default "0xc000000000000000" |
cabb5587 SR |
919 | endif |
920 | ||
14cf11af PM |
921 | source "net/Kconfig" |
922 | ||
923 | source "drivers/Kconfig" | |
924 | ||
925 | source "fs/Kconfig" | |
926 | ||
927 | # XXX source "arch/ppc/8xx_io/Kconfig" | |
928 | ||
929 | # XXX source "arch/ppc/8260_io/Kconfig" | |
930 | ||
931 | source "arch/powerpc/platforms/iseries/Kconfig" | |
932 | ||
933 | source "lib/Kconfig" | |
934 | ||
cd6b0762 PP |
935 | menu "Instrumentation Support" |
936 | depends on EXPERIMENTAL | |
937 | ||
14cf11af PM |
938 | source "arch/powerpc/oprofile/Kconfig" |
939 | ||
cd6b0762 PP |
940 | config KPROBES |
941 | bool "Kprobes (EXPERIMENTAL)" | |
7568cb4e | 942 | depends on PPC64 |
cd6b0762 PP |
943 | help |
944 | Kprobes allows you to trap at almost any kernel address and | |
945 | execute a callback function. register_kprobe() establishes | |
946 | a probepoint and specifies the callback. Kprobes is useful | |
947 | for kernel debugging, non-intrusive instrumentation and testing. | |
948 | If in doubt, say "N". | |
949 | endmenu | |
950 | ||
14cf11af PM |
951 | source "arch/powerpc/Kconfig.debug" |
952 | ||
953 | source "security/Kconfig" | |
954 | ||
955 | config KEYS_COMPAT | |
956 | bool | |
957 | depends on COMPAT && KEYS | |
958 | default y | |
959 | ||
960 | source "crypto/Kconfig" |