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1# For a description of the syntax of this configuration file,
2# see Documentation/kbuild/kconfig-language.txt.
3#
4
5mainmenu "Linux/PowerPC Kernel Configuration"
6
7config 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
14config PPC32
15 bool
16 default y if !PPC64
17
18config 64BIT
19 bool
20 default y if PPC64
21
22config PPC_MERGE
23 def_bool y
24
25config MMU
26 bool
27 default y
28
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29config GENERIC_HARDIRQS
30 bool
31 default y
32
33config RWSEM_GENERIC_SPINLOCK
34 bool
35
36config RWSEM_XCHGADD_ALGORITHM
37 bool
38 default y
39
40config GENERIC_CALIBRATE_DELAY
41 bool
42 default y
43
44config PPC
45 bool
46 default y
47
48config EARLY_PRINTK
49 bool
51d3082f 50 default y
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51
52config COMPAT
53 bool
54 default y if PPC64
55
56config SYSVIPC_COMPAT
57 bool
58 depends on COMPAT && SYSVIPC
59 default y
60
61# All PPC32s use generic nvram driver through ppc_md
62config GENERIC_NVRAM
63 bool
64 default y if PPC32
65
66config SCHED_NO_NO_OMIT_FRAME_POINTER
67 bool
68 default y
69
70config ARCH_MAY_HAVE_PC_FDC
71 bool
72 default y
73
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74config PPC_OF
75 def_bool y
76
77config PPC_UDBG_16550
78 bool
79 default n
80
81config CRASH_DUMP
82 bool "kernel crash dumps (EXPERIMENTAL)"
83 depends on PPC_MULTIPLATFORM
84 depends on EXPERIMENTAL
85 help
86 Build a kernel suitable for use as a kdump capture kernel.
87 The kernel will be linked at a different address than normal, and
88 so can only be used for Kdump.
89
90 Don't change this unless you know what you are doing.
91
92config GENERIC_TBSYNC
93 bool
94 default y if PPC32 && SMP
95 default n
96
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97menu "Processor support"
98choice
99 prompt "Processor Type"
100 depends on PPC32
101 default 6xx
102
08264cbc 103config CLASSIC32
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104 bool "6xx/7xx/74xx"
105 select PPC_FPU
08264cbc 106 select 6xx
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107 help
108 There are four families of PowerPC chips supported. The more common
109 types (601, 603, 604, 740, 750, 7400), the Motorola embedded
110 versions (821, 823, 850, 855, 860, 52xx, 82xx, 83xx), the AMCC
111 embedded versions (403 and 405) and the high end 64 bit Power
112 processors (POWER 3, POWER4, and IBM PPC970 also known as G5).
113
114 Unless you are building a kernel for one of the embedded processor
115 systems, 64 bit IBM RS/6000 or an Apple G5, choose 6xx.
116 Note that the kernel runs in 32-bit mode even on 64-bit chips.
117
118config PPC_52xx
119 bool "Freescale 52xx"
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120 select 6xx
121 select PPC_FPU
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122
123config PPC_82xx
124 bool "Freescale 82xx"
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125 select 6xx
126 select PPC_FPU
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127
128config PPC_83xx
129 bool "Freescale 83xx"
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130 select 6xx
131 select FSL_SOC
132 select 83xx
133 select PPC_FPU
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134
135config 40x
136 bool "AMCC 40x"
137
138config 44x
139 bool "AMCC 44x"
140
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141config 8xx
142 bool "Freescale 8xx"
143
144config E200
145 bool "Freescale e200"
146
147config E500
148 bool "Freescale e500"
149endchoice
150
151config POWER4_ONLY
152 bool "Optimize for POWER4"
187a0067 153 depends on PPC64
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154 default n
155 ---help---
156 Cause the compiler to optimize for POWER4/POWER5/PPC970 processors.
157 The resulting binary will not work on POWER3 or RS64 processors
158 when compiled with binutils 2.15 or later.
159
160config POWER3
161 bool
187a0067 162 depends on PPC64
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163 default y if !POWER4_ONLY
164
165config POWER4
187a0067 166 depends on PPC64
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167 def_bool y
168
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169config 6xx
170 bool
171
172# this is temp to handle compat with arch=ppc
173config 83xx
174 bool
175
14cf11af 176config PPC_FPU
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177 bool
178 default y if PPC64
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179
180config BOOKE
181 bool
182 depends on E200 || E500
183 default y
184
185config FSL_BOOKE
186 bool
187 depends on E200 || E500
188 default y
189
190config PTE_64BIT
191 bool
192 depends on 44x || E500
193 default y if 44x
194 default y if E500 && PHYS_64BIT
195
196config PHYS_64BIT
197 bool 'Large physical address support' if E500
198 depends on 44x || E500
199 default y if 44x
200 ---help---
201 This option enables kernel support for larger than 32-bit physical
202 addresses. This features is not be available on all e500 cores.
203
204 If in doubt, say N here.
205
206config ALTIVEC
207 bool "AltiVec Support"
08264cbc 208 depends on CLASSIC32 || POWER4
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209 ---help---
210 This option enables kernel support for the Altivec extensions to the
211 PowerPC processor. The kernel currently supports saving and restoring
212 altivec registers, and turning on the 'altivec enable' bit so user
213 processes can execute altivec instructions.
214
215 This option is only usefully if you have a processor that supports
216 altivec (G4, otherwise known as 74xx series), but does not have
217 any affect on a non-altivec cpu (it does, however add code to the
218 kernel).
219
220 If in doubt, say Y here.
221
222config SPE
223 bool "SPE Support"
224 depends on E200 || E500
225 ---help---
226 This option enables kernel support for the Signal Processing
227 Extensions (SPE) to the PowerPC processor. The kernel currently
228 supports saving and restoring SPE registers, and turning on the
229 'spe enable' bit so user processes can execute SPE instructions.
230
231 This option is only useful if you have a processor that supports
232 SPE (e500, otherwise known as 85xx series), but does not have any
233 effect on a non-spe cpu (it does, however add code to the kernel).
234
235 If in doubt, say Y here.
236
237config PPC_STD_MMU
238 bool
239 depends on 6xx || POWER3 || POWER4 || PPC64
240 default y
241
242config PPC_STD_MMU_32
243 def_bool y
244 depends on PPC_STD_MMU && PPC32
245
246config SMP
247 depends on PPC_STD_MMU
248 bool "Symmetric multi-processing support"
249 ---help---
250 This enables support for systems with more than one CPU. If you have
251 a system with only one CPU, say N. If you have a system with more
252 than one CPU, say Y. Note that the kernel does not currently
253 support SMP machines with 603/603e/603ev or PPC750 ("G3") processors
254 since they have inadequate hardware support for multiprocessor
255 operation.
256
257 If you say N here, the kernel will run on single and multiprocessor
258 machines, but will use only one CPU of a multiprocessor machine. If
259 you say Y here, the kernel will run on single-processor machines.
260 On a single-processor machine, the kernel will run faster if you say
261 N here.
262
263 If you don't know what to do here, say N.
264
265config NR_CPUS
e8a167ac 266 int "Maximum number of CPUs (2-128)"
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267 range 2 128
268 depends on SMP
269 default "32" if PPC64
270 default "4"
271
272config NOT_COHERENT_CACHE
273 bool
274 depends on 4xx || 8xx || E200
275 default y
276endmenu
277
278source "init/Kconfig"
279
280menu "Platform support"
08264cbc 281 depends on PPC64 || CLASSIC32
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282
283choice
284 prompt "Machine type"
285 default PPC_MULTIPLATFORM
286
287config PPC_MULTIPLATFORM
288 bool "Generic desktop/server/laptop"
289 help
290 Select this option if configuring for an IBM pSeries or
291 RS/6000 machine, an Apple machine, or a PReP, CHRP,
292 Maple or Cell-based machine.
293
294config PPC_ISERIES
295 bool "IBM Legacy iSeries"
296 depends on PPC64
297
298config EMBEDDED6xx
299 bool "Embedded 6xx/7xx/7xxx-based board"
5be396b0 300 depends on PPC32 && BROKEN
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301
302config APUS
303 bool "Amiga-APUS"
304 depends on PPC32 && BROKEN
305 help
306 Select APUS if configuring for a PowerUP Amiga.
307 More information is available at:
308 <http://linux-apus.sourceforge.net/>.
309endchoice
310
311config PPC_PSERIES
312 depends on PPC_MULTIPLATFORM && PPC64
313 bool " IBM pSeries & new (POWER5-based) iSeries"
f9bd170a 314 select PPC_I8259
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315 select PPC_RTAS
316 select RTAS_ERROR_LOGGING
13b8a272 317 select PPC_UDBG_16550
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318 default y
319
320config PPC_CHRP
321 bool " Common Hardware Reference Platform (CHRP) based machines"
322 depends on PPC_MULTIPLATFORM && PPC32
f9bd170a 323 select PPC_I8259
25635c71 324 select PPC_INDIRECT_PCI
033ef338 325 select PPC_RTAS
830825d6 326 select PPC_MPC106
13b8a272 327 select PPC_UDBG_16550
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328 default y
329
330config PPC_PMAC
331 bool " Apple PowerMac based machines"
332 depends on PPC_MULTIPLATFORM
25635c71 333 select PPC_INDIRECT_PCI if PPC32
b6a4ce52 334 select PPC_MPC106 if PPC32
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335 default y
336
337config PPC_PMAC64
338 bool
339 depends on PPC_PMAC && POWER4
35499c01 340 select U3_DART
1beb6a7d 341 select MPIC_BROKEN_U3
8ad200d7 342 select GENERIC_TBSYNC
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343 default y
344
345config PPC_PREP
346 bool " PowerPC Reference Platform (PReP) based machines"
5be396b0 347 depends on PPC_MULTIPLATFORM && PPC32 && BROKEN
f9bd170a 348 select PPC_I8259
25635c71 349 select PPC_INDIRECT_PCI
13b8a272 350 select PPC_UDBG_16550
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351 default y
352
353config PPC_MAPLE
354 depends on PPC_MULTIPLATFORM && PPC64
355 bool " Maple 970FX Evaluation Board"
356 select U3_DART
357 select MPIC_BROKEN_U3
8ad200d7 358 select GENERIC_TBSYNC
13b8a272 359 select PPC_UDBG_16550
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360 default n
361 help
362 This option enables support for the Maple 970FX Evaluation Board.
363 For more informations, refer to <http://www.970eval.com>
364
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365config PPC_CELL
366 bool " Cell Broadband Processor Architecture"
14cf11af 367 depends on PPC_MULTIPLATFORM && PPC64
033ef338 368 select PPC_RTAS
edf03c1e 369 select MMIO_NVRAM
13b8a272 370 select PPC_UDBG_16550
14cf11af 371
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372config XICS
373 depends on PPC_PSERIES
374 bool
375 default y
376
377config U3_DART
378 bool
379 depends on PPC_MULTIPLATFORM && PPC64
380 default n
381
382config MPIC
bbd0abda 383 depends on PPC_PSERIES || PPC_PMAC || PPC_MAPLE || PPC_CHRP
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384 bool
385 default y
386
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387config PPC_RTAS
388 bool
389 default n
390
391config RTAS_ERROR_LOGGING
392 bool
393 depends on PPC_RTAS
394 default n
395
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396config RTAS_PROC
397 bool "Proc interface to RTAS"
e9add2ee 398 depends on PPC_RTAS
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399 default y
400
401config RTAS_FLASH
402 tristate "Firmware flash interface"
403 depends on PPC64 && RTAS_PROC
e9add2ee 404
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405config MMIO_NVRAM
406 bool
407 default n
408
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409config MPIC_BROKEN_U3
410 bool
411 depends on PPC_MAPLE
412 default y
413
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414config CELL_IIC
415 depends on PPC_CELL
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416 bool
417 default y
418
419config IBMVIO
420 depends on PPC_PSERIES || PPC_ISERIES
421 bool
422 default y
423
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424config IBMEBUS
425 depends on PPC_PSERIES
426 bool "Support for GX bus based adapters"
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427 help
428 Bus device driver for GX bus based adapters.
429
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430config PPC_MPC106
431 bool
432 default n
433
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434source "drivers/cpufreq/Kconfig"
435
436config CPU_FREQ_PMAC
437 bool "Support for Apple PowerBooks"
438 depends on CPU_FREQ && ADB_PMU && PPC32
439 select CPU_FREQ_TABLE
440 help
441 This adds support for frequency switching on Apple PowerBooks,
442 this currently includes some models of iBook & Titanium
443 PowerBook.
444
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445config CPU_FREQ_PMAC64
446 bool "Support for some Apple G5s"
447 depends on CPU_FREQ && PMAC_SMU && PPC64
448 select CPU_FREQ_TABLE
449 help
450 This adds support for frequency switching on Apple iMac G5,
451 and some of the more recent desktop G5 machines as well.
452
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453config PPC601_SYNC_FIX
454 bool "Workarounds for PPC601 bugs"
455 depends on 6xx && (PPC_PREP || PPC_PMAC)
456 help
457 Some versions of the PPC601 (the first PowerPC chip) have bugs which
458 mean that extra synchronization instructions are required near
459 certain instructions, typically those that make major changes to the
460 CPU state. These extra instructions reduce performance slightly.
461 If you say N here, these extra instructions will not be included,
462 resulting in a kernel which will run faster but may not run at all
463 on some systems with the PPC601 chip.
464
465 If in doubt, say Y here.
466
467config TAU
468 bool "Thermal Management Support"
469 depends on 6xx
470 help
471 G3 and G4 processors have an on-chip temperature sensor called the
472 'Thermal Assist Unit (TAU)', which, in theory, can measure the on-die
473 temperature within 2-4 degrees Celsius. This option shows the current
474 on-die temperature in /proc/cpuinfo if the cpu supports it.
475
476 Unfortunately, on some chip revisions, this sensor is very inaccurate
477 and in some cases, does not work at all, so don't assume the cpu
478 temp is actually what /proc/cpuinfo says it is.
479
480config TAU_INT
481 bool "Interrupt driven TAU driver (DANGEROUS)"
482 depends on TAU
483 ---help---
484 The TAU supports an interrupt driven mode which causes an interrupt
485 whenever the temperature goes out of range. This is the fastest way
486 to get notified the temp has exceeded a range. With this option off,
487 a timer is used to re-check the temperature periodically.
488
489 However, on some cpus it appears that the TAU interrupt hardware
490 is buggy and can cause a situation which would lead unexplained hard
491 lockups.
492
493 Unless you are extending the TAU driver, or enjoy kernel/hardware
494 debugging, leave this option off.
495
496config TAU_AVERAGE
497 bool "Average high and low temp"
498 depends on TAU
499 ---help---
500 The TAU hardware can compare the temperature to an upper and lower
501 bound. The default behavior is to show both the upper and lower
502 bound in /proc/cpuinfo. If the range is large, the temperature is
503 either changing a lot, or the TAU hardware is broken (likely on some
504 G4's). If the range is small (around 4 degrees), the temperature is
505 relatively stable. If you say Y here, a single temperature value,
506 halfway between the upper and lower bounds, will be reported in
507 /proc/cpuinfo.
508
509 If in doubt, say N here.
510endmenu
511
512source arch/powerpc/platforms/embedded6xx/Kconfig
513source arch/powerpc/platforms/4xx/Kconfig
08264cbc 514source arch/powerpc/platforms/83xx/Kconfig
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515source arch/powerpc/platforms/85xx/Kconfig
516source arch/powerpc/platforms/8xx/Kconfig
67207b96 517source arch/powerpc/platforms/cell/Kconfig
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518
519menu "Kernel options"
520
521config HIGHMEM
522 bool "High memory support"
523 depends on PPC32
524
525source kernel/Kconfig.hz
526source kernel/Kconfig.preempt
527source "fs/Kconfig.binfmt"
528
529# We optimistically allocate largepages from the VM, so make the limit
530# large enough (16MB). This badly named config option is actually
531# max order + 1
532config FORCE_MAX_ZONEORDER
533 int
534 depends on PPC64
02864867 535 default "9" if PPC_64K_PAGES
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536 default "13"
537
538config MATH_EMULATION
539 bool "Math emulation"
540 depends on 4xx || 8xx || E200 || E500
541 ---help---
542 Some PowerPC chips designed for embedded applications do not have
543 a floating-point unit and therefore do not implement the
544 floating-point instructions in the PowerPC instruction set. If you
545 say Y here, the kernel will include code to emulate a floating-point
546 unit, which will allow programs that use floating-point
547 instructions to run.
548
549config IOMMU_VMERGE
550 bool "Enable IOMMU virtual merging (EXPERIMENTAL)"
551 depends on EXPERIMENTAL && PPC64
552 default n
553 help
554 Cause IO segments sent to a device for DMA to be merged virtually
555 by the IOMMU when they happen to have been allocated contiguously.
556 This doesn't add pressure to the IOMMU allocator. However, some
557 drivers don't support getting large merged segments coming back
558 from *_map_sg(). Say Y if you know the drivers you are using are
559 properly handling this case.
560
561config HOTPLUG_CPU
562 bool "Support for enabling/disabling CPUs"
563 depends on SMP && HOTPLUG && EXPERIMENTAL && (PPC_PSERIES || PPC_PMAC)
564 ---help---
565 Say Y here to be able to disable and re-enable individual
566 CPUs at runtime on SMP machines.
567
568 Say N if you are unsure.
569
570config KEXEC
571 bool "kexec system call (EXPERIMENTAL)"
572 depends on PPC_MULTIPLATFORM && EXPERIMENTAL
573 help
574 kexec is a system call that implements the ability to shutdown your
575 current kernel, and to start another kernel. It is like a reboot
576 but it is indepedent of the system firmware. And like a reboot
577 you can start any kernel with it, not just Linux.
578
579 The name comes from the similiarity to the exec system call.
580
581 It is an ongoing process to be certain the hardware in a machine
582 is properly shutdown, so do not be surprised if this code does not
583 initially work for you. It may help to enable device hotplugging
584 support. As of this writing the exact hardware interface is
585 strongly in flux, so no good recommendation can be made.
586
587config EMBEDDEDBOOT
588 bool
589 depends on 8xx || 8260
590 default y
591
592config PC_KEYBOARD
593 bool "PC PS/2 style Keyboard"
594 depends on 4xx || CPM2
595
596config PPCBUG_NVRAM
597 bool "Enable reading PPCBUG NVRAM during boot" if PPLUS || LOPEC
598 default y if PPC_PREP
599
600config IRQ_ALL_CPUS
601 bool "Distribute interrupts on all CPUs by default"
602 depends on SMP && !MV64360
603 help
604 This option gives the kernel permission to distribute IRQs across
605 multiple CPUs. Saying N here will route all IRQs to the first
606 CPU. Generally saying Y is safe, although some problems have been
607 reported with SMP Power Macintoshes with this option enabled.
608
609source "arch/powerpc/platforms/pseries/Kconfig"
610
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611config NUMA
612 bool "NUMA support"
613 depends on PPC64
614 default y if SMP && PPC_PSERIES
615
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616config ARCH_SELECT_MEMORY_MODEL
617 def_bool y
618 depends on PPC64
619
620config ARCH_FLATMEM_ENABLE
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621 def_bool y
622 depends on (PPC64 && !NUMA) || PPC32
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45fb6cea 624config ARCH_SPARSEMEM_ENABLE
14cf11af 625 def_bool y
9100b205 626 depends on PPC64
14cf11af 627
45fb6cea 628config ARCH_SPARSEMEM_DEFAULT
14cf11af 629 def_bool y
45fb6cea 630 depends on SMP && PPC_PSERIES
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631
632source "mm/Kconfig"
633
634config HAVE_ARCH_EARLY_PFN_TO_NID
635 def_bool y
636 depends on NEED_MULTIPLE_NODES
637
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638config ARCH_MEMORY_PROBE
639 def_bool y
640 depends on MEMORY_HOTPLUG
641
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642config PPC_64K_PAGES
643 bool "64k page size"
863c84b9 644 depends on PPC64
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645 help
646 This option changes the kernel logical page size to 64k. On machines
647 without processor support for 64k pages, the kernel will simulate
648 them by loading each individual 4k page on demand transparently,
649 while on hardware with such support, it will be used to map
650 normal application pages.
651
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652config SCHED_SMT
653 bool "SMT (Hyperthreading) scheduler support"
654 depends on PPC64 && SMP
655 default off
656 help
657 SMT scheduler support improves the CPU scheduler's decision making
658 when dealing with POWER5 cpus at a cost of slightly increased
659 overhead in some places. If unsure say N here.
660
661config PROC_DEVICETREE
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662 bool "Support for device tree in /proc"
663 depends on PROC_FS
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664 help
665 This option adds a device-tree directory under /proc which contains
666 an image of the device tree that the kernel copies from Open
5f296755 667 Firmware or other boot firmware. If unsure, say Y here.
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668
669source "arch/powerpc/platforms/prep/Kconfig"
670
671config CMDLINE_BOOL
672 bool "Default bootloader kernel arguments"
673 depends on !PPC_ISERIES
674
675config CMDLINE
676 string "Initial kernel command string"
677 depends on CMDLINE_BOOL
678 default "console=ttyS0,9600 console=tty0 root=/dev/sda2"
679 help
680 On some platforms, there is currently no way for the boot loader to
681 pass arguments to the kernel. For these platforms, you can supply
682 some command-line options at build time by entering them here. In
683 most cases you will need to specify the root device here.
684
685if !44x || BROKEN
686source kernel/power/Kconfig
687endif
688
689config SECCOMP
690 bool "Enable seccomp to safely compute untrusted bytecode"
691 depends on PROC_FS
692 default y
693 help
694 This kernel feature is useful for number crunching applications
695 that may need to compute untrusted bytecode during their
696 execution. By using pipes or other transports made available to
697 the process as file descriptors supporting the read/write
698 syscalls, it's possible to isolate those applications in
699 their own address space using seccomp. Once seccomp is
700 enabled via /proc/<pid>/seccomp, it cannot be disabled
701 and the task is only allowed to execute a few safe syscalls
702 defined by each seccomp mode.
703
704 If unsure, say Y. Only embedded should say N here.
705
706endmenu
707
708config ISA_DMA_API
709 bool
710 default y
711
712menu "Bus options"
713
714config ISA
715 bool "Support for ISA-bus hardware"
716 depends on PPC_PREP || PPC_CHRP
f9bd170a 717 select PPC_I8259
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718 help
719 Find out whether you have ISA slots on your motherboard. ISA is the
720 name of a bus system, i.e. the way the CPU talks to the other stuff
721 inside your box. If you have an Apple machine, say N here; if you
722 have an IBM RS/6000 or pSeries machine or a PReP machine, say Y. If
723 you have an embedded board, consult your board documentation.
724
725config GENERIC_ISA_DMA
726 bool
727 depends on PPC64 || POWER4 || 6xx && !CPM2
728 default y
729
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730config PPC_I8259
731 bool
732 default y if 85xx
733 default n
734
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735config PPC_INDIRECT_PCI
736 bool
737 depends on PCI
08264cbc 738 default y if 40x || 44x || 85xx
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739 default n
740
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741config EISA
742 bool
743
744config SBUS
745 bool
746
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747config FSL_SOC
748 bool
749
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750# Yes MCA RS/6000s exist but Linux-PPC does not currently support any
751config MCA
752 bool
753
754config PCI
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755 bool "PCI support" if 40x || CPM2 || PPC_83xx || 85xx || PPC_MPC52xx || (EMBEDDED && PPC_ISERIES)
756 default y if !40x && !CPM2 && !8xx && !APUS && !PPC_83xx && !85xx
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757 default PCI_PERMEDIA if !4xx && !CPM2 && !8xx && APUS
758 default PCI_QSPAN if !4xx && !CPM2 && 8xx
759 help
760 Find out whether your system includes a PCI bus. PCI is the name of
761 a bus system, i.e. the way the CPU talks to the other stuff inside
762 your box. If you say Y here, the kernel will include drivers and
763 infrastructure code to support PCI bus devices.
764
765config PCI_DOMAINS
766 bool
767 default PCI
768
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769config PCI_QSPAN
770 bool "QSpan PCI"
771 depends on !4xx && !CPM2 && 8xx
f9bd170a 772 select PPC_I8259
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773 help
774 Say Y here if you have a system based on a Motorola 8xx-series
775 embedded processor with a QSPAN PCI interface, otherwise say N.
776
777config PCI_8260
778 bool
779 depends on PCI && 8260
25635c71 780 select PPC_INDIRECT_PCI
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781 default y
782
783config 8260_PCI9
784 bool " Enable workaround for MPC826x erratum PCI 9"
785 depends on PCI_8260 && !ADS8272
786 default y
787
788choice
789 prompt " IDMA channel for PCI 9 workaround"
790 depends on 8260_PCI9
791
792config 8260_PCI9_IDMA1
793 bool "IDMA1"
794
795config 8260_PCI9_IDMA2
796 bool "IDMA2"
797
798config 8260_PCI9_IDMA3
799 bool "IDMA3"
800
801config 8260_PCI9_IDMA4
802 bool "IDMA4"
803
804endchoice
805
806source "drivers/pci/Kconfig"
807
808source "drivers/pcmcia/Kconfig"
809
810source "drivers/pci/hotplug/Kconfig"
811
812endmenu
813
814menu "Advanced setup"
815 depends on PPC32
816
817config ADVANCED_OPTIONS
818 bool "Prompt for advanced kernel configuration options"
819 help
820 This option will enable prompting for a variety of advanced kernel
821 configuration options. These options can cause the kernel to not
822 work if they are set incorrectly, but can be used to optimize certain
823 aspects of kernel memory management.
824
825 Unless you know what you are doing, say N here.
826
827comment "Default settings for advanced configuration options are used"
828 depends on !ADVANCED_OPTIONS
829
830config HIGHMEM_START_BOOL
831 bool "Set high memory pool address"
832 depends on ADVANCED_OPTIONS && HIGHMEM
833 help
834 This option allows you to set the base address of the kernel virtual
835 area used to map high memory pages. This can be useful in
836 optimizing the layout of kernel virtual memory.
837
838 Say N here unless you know what you are doing.
839
840config HIGHMEM_START
841 hex "Virtual start address of high memory pool" if HIGHMEM_START_BOOL
842 default "0xfe000000"
843
844config LOWMEM_SIZE_BOOL
845 bool "Set maximum low memory"
846 depends on ADVANCED_OPTIONS
847 help
848 This option allows you to set the maximum amount of memory which
849 will be used as "low memory", that is, memory which the kernel can
850 access directly, without having to set up a kernel virtual mapping.
851 This can be useful in optimizing the layout of kernel virtual
852 memory.
853
854 Say N here unless you know what you are doing.
855
856config LOWMEM_SIZE
857 hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
858 default "0x30000000"
859
860config KERNEL_START_BOOL
861 bool "Set custom kernel base address"
862 depends on ADVANCED_OPTIONS
863 help
864 This option allows you to set the kernel virtual address at which
865 the kernel will map low memory (the kernel image will be linked at
866 this address). This can be useful in optimizing the virtual memory
867 layout of the system.
868
869 Say N here unless you know what you are doing.
870
871config KERNEL_START
872 hex "Virtual address of kernel base" if KERNEL_START_BOOL
873 default "0xc0000000"
874
875config TASK_SIZE_BOOL
876 bool "Set custom user task size"
877 depends on ADVANCED_OPTIONS
878 help
879 This option allows you to set the amount of virtual address space
880 allocated to user tasks. This can be useful in optimizing the
881 virtual memory layout of the system.
882
883 Say N here unless you know what you are doing.
884
885config TASK_SIZE
886 hex "Size of user task space" if TASK_SIZE_BOOL
887 default "0x80000000"
888
889config CONSISTENT_START_BOOL
890 bool "Set custom consistent memory pool address"
891 depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
892 help
893 This option allows you to set the base virtual address
894 of the the consistent memory pool. This pool of virtual
895 memory is used to make consistent memory allocations.
896
897config CONSISTENT_START
898 hex "Base virtual address of consistent memory pool" if CONSISTENT_START_BOOL
899 default "0xff100000" if NOT_COHERENT_CACHE
900
901config CONSISTENT_SIZE_BOOL
902 bool "Set custom consistent memory pool size"
903 depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
904 help
905 This option allows you to set the size of the the
906 consistent memory pool. This pool of virtual memory
907 is used to make consistent memory allocations.
908
909config CONSISTENT_SIZE
910 hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL
911 default "0x00200000" if NOT_COHERENT_CACHE
912
913config BOOT_LOAD_BOOL
914 bool "Set the boot link/load address"
915 depends on ADVANCED_OPTIONS && !PPC_MULTIPLATFORM
916 help
917 This option allows you to set the initial load address of the zImage
918 or zImage.initrd file. This can be useful if you are on a board
919 which has a small amount of memory.
920
921 Say N here unless you know what you are doing.
922
923config BOOT_LOAD
924 hex "Link/load address for booting" if BOOT_LOAD_BOOL
925 default "0x00400000" if 40x || 8xx || 8260
926 default "0x01000000" if 44x
927 default "0x00800000"
928
929config PIN_TLB
930 bool "Pinned Kernel TLBs (860 ONLY)"
931 depends on ADVANCED_OPTIONS && 8xx
932endmenu
933
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934if PPC64
935config KERNEL_START
936 hex
eeb2d218 937 default "0xc000000000000000"
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938endif
939
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940source "net/Kconfig"
941
942source "drivers/Kconfig"
943
944source "fs/Kconfig"
945
946# XXX source "arch/ppc/8xx_io/Kconfig"
947
948# XXX source "arch/ppc/8260_io/Kconfig"
949
950source "arch/powerpc/platforms/iseries/Kconfig"
951
952source "lib/Kconfig"
953
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954menu "Instrumentation Support"
955 depends on EXPERIMENTAL
956
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957source "arch/powerpc/oprofile/Kconfig"
958
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959config KPROBES
960 bool "Kprobes (EXPERIMENTAL)"
7568cb4e 961 depends on PPC64
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962 help
963 Kprobes allows you to trap at almost any kernel address and
964 execute a callback function. register_kprobe() establishes
965 a probepoint and specifies the callback. Kprobes is useful
966 for kernel debugging, non-intrusive instrumentation and testing.
967 If in doubt, say "N".
968endmenu
969
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970source "arch/powerpc/Kconfig.debug"
971
972source "security/Kconfig"
973
974config KEYS_COMPAT
975 bool
976 depends on COMPAT && KEYS
977 default y
978
979source "crypto/Kconfig"