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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
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81config GENERIC_TBSYNC
82 bool
83 default y if PPC32 && SMP
84 default n
85
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86menu "Processor support"
87choice
88 prompt "Processor Type"
89 depends on PPC32
90 default 6xx
91
08264cbc 92config CLASSIC32
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93 bool "6xx/7xx/74xx"
94 select PPC_FPU
08264cbc 95 select 6xx
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96 help
97 There are four families of PowerPC chips supported. The more common
98 types (601, 603, 604, 740, 750, 7400), the Motorola embedded
99 versions (821, 823, 850, 855, 860, 52xx, 82xx, 83xx), the AMCC
100 embedded versions (403 and 405) and the high end 64 bit Power
101 processors (POWER 3, POWER4, and IBM PPC970 also known as G5).
102
103 Unless you are building a kernel for one of the embedded processor
104 systems, 64 bit IBM RS/6000 or an Apple G5, choose 6xx.
105 Note that the kernel runs in 32-bit mode even on 64-bit chips.
106
107config PPC_52xx
108 bool "Freescale 52xx"
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109 select 6xx
110 select PPC_FPU
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111
112config PPC_82xx
113 bool "Freescale 82xx"
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114 select 6xx
115 select PPC_FPU
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116
117config PPC_83xx
118 bool "Freescale 83xx"
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119 select 6xx
120 select FSL_SOC
121 select 83xx
122 select PPC_FPU
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123
124config 40x
125 bool "AMCC 40x"
126
127config 44x
128 bool "AMCC 44x"
129
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130config 8xx
131 bool "Freescale 8xx"
132
133config E200
134 bool "Freescale e200"
135
136config E500
137 bool "Freescale e500"
138endchoice
139
140config POWER4_ONLY
141 bool "Optimize for POWER4"
187a0067 142 depends on PPC64
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143 default n
144 ---help---
145 Cause the compiler to optimize for POWER4/POWER5/PPC970 processors.
146 The resulting binary will not work on POWER3 or RS64 processors
147 when compiled with binutils 2.15 or later.
148
149config POWER3
150 bool
187a0067 151 depends on PPC64
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152 default y if !POWER4_ONLY
153
154config POWER4
187a0067 155 depends on PPC64
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156 def_bool y
157
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158config 6xx
159 bool
160
161# this is temp to handle compat with arch=ppc
162config 83xx
163 bool
164
14cf11af 165config PPC_FPU
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166 bool
167 default y if PPC64
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168
169config BOOKE
170 bool
171 depends on E200 || E500
172 default y
173
174config FSL_BOOKE
175 bool
176 depends on E200 || E500
177 default y
178
179config PTE_64BIT
180 bool
181 depends on 44x || E500
182 default y if 44x
183 default y if E500 && PHYS_64BIT
184
185config PHYS_64BIT
186 bool 'Large physical address support' if E500
187 depends on 44x || E500
188 default y if 44x
189 ---help---
190 This option enables kernel support for larger than 32-bit physical
191 addresses. This features is not be available on all e500 cores.
192
193 If in doubt, say N here.
194
195config ALTIVEC
196 bool "AltiVec Support"
08264cbc 197 depends on CLASSIC32 || POWER4
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198 ---help---
199 This option enables kernel support for the Altivec extensions to the
200 PowerPC processor. The kernel currently supports saving and restoring
201 altivec registers, and turning on the 'altivec enable' bit so user
202 processes can execute altivec instructions.
203
204 This option is only usefully if you have a processor that supports
205 altivec (G4, otherwise known as 74xx series), but does not have
206 any affect on a non-altivec cpu (it does, however add code to the
207 kernel).
208
209 If in doubt, say Y here.
210
211config SPE
212 bool "SPE Support"
213 depends on E200 || E500
214 ---help---
215 This option enables kernel support for the Signal Processing
216 Extensions (SPE) to the PowerPC processor. The kernel currently
217 supports saving and restoring SPE registers, and turning on the
218 'spe enable' bit so user processes can execute SPE instructions.
219
220 This option is only useful if you have a processor that supports
221 SPE (e500, otherwise known as 85xx series), but does not have any
222 effect on a non-spe cpu (it does, however add code to the kernel).
223
224 If in doubt, say Y here.
225
226config PPC_STD_MMU
227 bool
228 depends on 6xx || POWER3 || POWER4 || PPC64
229 default y
230
231config PPC_STD_MMU_32
232 def_bool y
233 depends on PPC_STD_MMU && PPC32
234
235config SMP
236 depends on PPC_STD_MMU
237 bool "Symmetric multi-processing support"
238 ---help---
239 This enables support for systems with more than one CPU. If you have
240 a system with only one CPU, say N. If you have a system with more
241 than one CPU, say Y. Note that the kernel does not currently
242 support SMP machines with 603/603e/603ev or PPC750 ("G3") processors
243 since they have inadequate hardware support for multiprocessor
244 operation.
245
246 If you say N here, the kernel will run on single and multiprocessor
247 machines, but will use only one CPU of a multiprocessor machine. If
248 you say Y here, the kernel will run on single-processor machines.
249 On a single-processor machine, the kernel will run faster if you say
250 N here.
251
252 If you don't know what to do here, say N.
253
254config NR_CPUS
e8a167ac 255 int "Maximum number of CPUs (2-128)"
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256 range 2 128
257 depends on SMP
258 default "32" if PPC64
259 default "4"
260
261config NOT_COHERENT_CACHE
262 bool
263 depends on 4xx || 8xx || E200
264 default y
265endmenu
266
267source "init/Kconfig"
268
269menu "Platform support"
08264cbc 270 depends on PPC64 || CLASSIC32
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271
272choice
273 prompt "Machine type"
274 default PPC_MULTIPLATFORM
275
276config PPC_MULTIPLATFORM
277 bool "Generic desktop/server/laptop"
278 help
279 Select this option if configuring for an IBM pSeries or
280 RS/6000 machine, an Apple machine, or a PReP, CHRP,
281 Maple or Cell-based machine.
282
283config PPC_ISERIES
284 bool "IBM Legacy iSeries"
285 depends on PPC64
286
287config EMBEDDED6xx
288 bool "Embedded 6xx/7xx/7xxx-based board"
5be396b0 289 depends on PPC32 && BROKEN
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290
291config APUS
292 bool "Amiga-APUS"
293 depends on PPC32 && BROKEN
294 help
295 Select APUS if configuring for a PowerUP Amiga.
296 More information is available at:
297 <http://linux-apus.sourceforge.net/>.
298endchoice
299
300config PPC_PSERIES
301 depends on PPC_MULTIPLATFORM && PPC64
302 bool " IBM pSeries & new (POWER5-based) iSeries"
f9bd170a 303 select PPC_I8259
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304 select PPC_RTAS
305 select RTAS_ERROR_LOGGING
13b8a272 306 select PPC_UDBG_16550
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307 default y
308
309config PPC_CHRP
310 bool " Common Hardware Reference Platform (CHRP) based machines"
311 depends on PPC_MULTIPLATFORM && PPC32
f9bd170a 312 select PPC_I8259
25635c71 313 select PPC_INDIRECT_PCI
033ef338 314 select PPC_RTAS
830825d6 315 select PPC_MPC106
13b8a272 316 select PPC_UDBG_16550
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317 default y
318
319config PPC_PMAC
320 bool " Apple PowerMac based machines"
321 depends on PPC_MULTIPLATFORM
25635c71 322 select PPC_INDIRECT_PCI if PPC32
b6a4ce52 323 select PPC_MPC106 if PPC32
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324 default y
325
326config PPC_PMAC64
327 bool
328 depends on PPC_PMAC && POWER4
35499c01 329 select U3_DART
1beb6a7d 330 select MPIC_BROKEN_U3
8ad200d7 331 select GENERIC_TBSYNC
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332 default y
333
334config PPC_PREP
335 bool " PowerPC Reference Platform (PReP) based machines"
5be396b0 336 depends on PPC_MULTIPLATFORM && PPC32 && BROKEN
f9bd170a 337 select PPC_I8259
25635c71 338 select PPC_INDIRECT_PCI
13b8a272 339 select PPC_UDBG_16550
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340 default y
341
342config PPC_MAPLE
343 depends on PPC_MULTIPLATFORM && PPC64
344 bool " Maple 970FX Evaluation Board"
345 select U3_DART
346 select MPIC_BROKEN_U3
8ad200d7 347 select GENERIC_TBSYNC
13b8a272 348 select PPC_UDBG_16550
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349 default n
350 help
351 This option enables support for the Maple 970FX Evaluation Board.
352 For more informations, refer to <http://www.970eval.com>
353
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354config PPC_CELL
355 bool " Cell Broadband Processor Architecture"
14cf11af 356 depends on PPC_MULTIPLATFORM && PPC64
033ef338 357 select PPC_RTAS
edf03c1e 358 select MMIO_NVRAM
13b8a272 359 select PPC_UDBG_16550
14cf11af 360
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361config XICS
362 depends on PPC_PSERIES
363 bool
364 default y
365
366config U3_DART
367 bool
368 depends on PPC_MULTIPLATFORM && PPC64
369 default n
370
371config MPIC
bbd0abda 372 depends on PPC_PSERIES || PPC_PMAC || PPC_MAPLE || PPC_CHRP
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373 bool
374 default y
375
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376config PPC_RTAS
377 bool
378 default n
379
380config RTAS_ERROR_LOGGING
381 bool
382 depends on PPC_RTAS
383 default n
384
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385config RTAS_PROC
386 bool "Proc interface to RTAS"
e9add2ee 387 depends on PPC_RTAS
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388 default y
389
390config RTAS_FLASH
391 tristate "Firmware flash interface"
392 depends on PPC64 && RTAS_PROC
e9add2ee 393
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394config MMIO_NVRAM
395 bool
396 default n
397
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398config MPIC_BROKEN_U3
399 bool
400 depends on PPC_MAPLE
401 default y
402
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403config CELL_IIC
404 depends on PPC_CELL
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405 bool
406 default y
407
408config IBMVIO
409 depends on PPC_PSERIES || PPC_ISERIES
410 bool
411 default y
412
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413config IBMEBUS
414 depends on PPC_PSERIES
415 bool "Support for GX bus based adapters"
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416 help
417 Bus device driver for GX bus based adapters.
418
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419config PPC_MPC106
420 bool
421 default n
422
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423source "drivers/cpufreq/Kconfig"
424
425config CPU_FREQ_PMAC
426 bool "Support for Apple PowerBooks"
427 depends on CPU_FREQ && ADB_PMU && PPC32
428 select CPU_FREQ_TABLE
429 help
430 This adds support for frequency switching on Apple PowerBooks,
431 this currently includes some models of iBook & Titanium
432 PowerBook.
433
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434config CPU_FREQ_PMAC64
435 bool "Support for some Apple G5s"
436 depends on CPU_FREQ && PMAC_SMU && PPC64
437 select CPU_FREQ_TABLE
438 help
439 This adds support for frequency switching on Apple iMac G5,
440 and some of the more recent desktop G5 machines as well.
441
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442config PPC601_SYNC_FIX
443 bool "Workarounds for PPC601 bugs"
444 depends on 6xx && (PPC_PREP || PPC_PMAC)
445 help
446 Some versions of the PPC601 (the first PowerPC chip) have bugs which
447 mean that extra synchronization instructions are required near
448 certain instructions, typically those that make major changes to the
449 CPU state. These extra instructions reduce performance slightly.
450 If you say N here, these extra instructions will not be included,
451 resulting in a kernel which will run faster but may not run at all
452 on some systems with the PPC601 chip.
453
454 If in doubt, say Y here.
455
456config TAU
457 bool "Thermal Management Support"
458 depends on 6xx
459 help
460 G3 and G4 processors have an on-chip temperature sensor called the
461 'Thermal Assist Unit (TAU)', which, in theory, can measure the on-die
462 temperature within 2-4 degrees Celsius. This option shows the current
463 on-die temperature in /proc/cpuinfo if the cpu supports it.
464
465 Unfortunately, on some chip revisions, this sensor is very inaccurate
466 and in some cases, does not work at all, so don't assume the cpu
467 temp is actually what /proc/cpuinfo says it is.
468
469config TAU_INT
470 bool "Interrupt driven TAU driver (DANGEROUS)"
471 depends on TAU
472 ---help---
473 The TAU supports an interrupt driven mode which causes an interrupt
474 whenever the temperature goes out of range. This is the fastest way
475 to get notified the temp has exceeded a range. With this option off,
476 a timer is used to re-check the temperature periodically.
477
478 However, on some cpus it appears that the TAU interrupt hardware
479 is buggy and can cause a situation which would lead unexplained hard
480 lockups.
481
482 Unless you are extending the TAU driver, or enjoy kernel/hardware
483 debugging, leave this option off.
484
485config TAU_AVERAGE
486 bool "Average high and low temp"
487 depends on TAU
488 ---help---
489 The TAU hardware can compare the temperature to an upper and lower
490 bound. The default behavior is to show both the upper and lower
491 bound in /proc/cpuinfo. If the range is large, the temperature is
492 either changing a lot, or the TAU hardware is broken (likely on some
493 G4's). If the range is small (around 4 degrees), the temperature is
494 relatively stable. If you say Y here, a single temperature value,
495 halfway between the upper and lower bounds, will be reported in
496 /proc/cpuinfo.
497
498 If in doubt, say N here.
499endmenu
500
501source arch/powerpc/platforms/embedded6xx/Kconfig
502source arch/powerpc/platforms/4xx/Kconfig
08264cbc 503source arch/powerpc/platforms/83xx/Kconfig
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504source arch/powerpc/platforms/85xx/Kconfig
505source arch/powerpc/platforms/8xx/Kconfig
67207b96 506source arch/powerpc/platforms/cell/Kconfig
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507
508menu "Kernel options"
509
510config HIGHMEM
511 bool "High memory support"
512 depends on PPC32
513
514source kernel/Kconfig.hz
515source kernel/Kconfig.preempt
516source "fs/Kconfig.binfmt"
517
518# We optimistically allocate largepages from the VM, so make the limit
519# large enough (16MB). This badly named config option is actually
520# max order + 1
521config FORCE_MAX_ZONEORDER
522 int
523 depends on PPC64
02864867 524 default "9" if PPC_64K_PAGES
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525 default "13"
526
527config MATH_EMULATION
528 bool "Math emulation"
529 depends on 4xx || 8xx || E200 || E500
530 ---help---
531 Some PowerPC chips designed for embedded applications do not have
532 a floating-point unit and therefore do not implement the
533 floating-point instructions in the PowerPC instruction set. If you
534 say Y here, the kernel will include code to emulate a floating-point
535 unit, which will allow programs that use floating-point
536 instructions to run.
537
538config IOMMU_VMERGE
539 bool "Enable IOMMU virtual merging (EXPERIMENTAL)"
540 depends on EXPERIMENTAL && PPC64
541 default n
542 help
543 Cause IO segments sent to a device for DMA to be merged virtually
544 by the IOMMU when they happen to have been allocated contiguously.
545 This doesn't add pressure to the IOMMU allocator. However, some
546 drivers don't support getting large merged segments coming back
547 from *_map_sg(). Say Y if you know the drivers you are using are
548 properly handling this case.
549
550config HOTPLUG_CPU
551 bool "Support for enabling/disabling CPUs"
552 depends on SMP && HOTPLUG && EXPERIMENTAL && (PPC_PSERIES || PPC_PMAC)
553 ---help---
554 Say Y here to be able to disable and re-enable individual
555 CPUs at runtime on SMP machines.
556
557 Say N if you are unsure.
558
559config KEXEC
560 bool "kexec system call (EXPERIMENTAL)"
561 depends on PPC_MULTIPLATFORM && EXPERIMENTAL
562 help
563 kexec is a system call that implements the ability to shutdown your
564 current kernel, and to start another kernel. It is like a reboot
565 but it is indepedent of the system firmware. And like a reboot
566 you can start any kernel with it, not just Linux.
567
568 The name comes from the similiarity to the exec system call.
569
570 It is an ongoing process to be certain the hardware in a machine
571 is properly shutdown, so do not be surprised if this code does not
572 initially work for you. It may help to enable device hotplugging
573 support. As of this writing the exact hardware interface is
574 strongly in flux, so no good recommendation can be made.
575
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576config CRASH_DUMP
577 bool "kernel crash dumps (EXPERIMENTAL)"
578 depends on PPC_MULTIPLATFORM && PPC64 && EXPERIMENTAL
579 help
580 Build a kernel suitable for use as a kdump capture kernel.
581 The kernel will be linked at a different address than normal, and
582 so can only be used for Kdump.
583
584 Don't change this unless you know what you are doing.
585
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586config EMBEDDEDBOOT
587 bool
588 depends on 8xx || 8260
589 default y
590
591config PC_KEYBOARD
592 bool "PC PS/2 style Keyboard"
593 depends on 4xx || CPM2
594
595config PPCBUG_NVRAM
596 bool "Enable reading PPCBUG NVRAM during boot" if PPLUS || LOPEC
597 default y if PPC_PREP
598
599config IRQ_ALL_CPUS
600 bool "Distribute interrupts on all CPUs by default"
601 depends on SMP && !MV64360
602 help
603 This option gives the kernel permission to distribute IRQs across
604 multiple CPUs. Saying N here will route all IRQs to the first
605 CPU. Generally saying Y is safe, although some problems have been
606 reported with SMP Power Macintoshes with this option enabled.
607
608source "arch/powerpc/platforms/pseries/Kconfig"
609
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610config NUMA
611 bool "NUMA support"
612 depends on PPC64
613 default y if SMP && PPC_PSERIES
614
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615config ARCH_SELECT_MEMORY_MODEL
616 def_bool y
617 depends on PPC64
618
619config ARCH_FLATMEM_ENABLE
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620 def_bool y
621 depends on (PPC64 && !NUMA) || PPC32
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45fb6cea 623config ARCH_SPARSEMEM_ENABLE
14cf11af 624 def_bool y
9100b205 625 depends on PPC64
14cf11af 626
45fb6cea 627config ARCH_SPARSEMEM_DEFAULT
14cf11af 628 def_bool y
45fb6cea 629 depends on SMP && PPC_PSERIES
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630
631source "mm/Kconfig"
632
633config HAVE_ARCH_EARLY_PFN_TO_NID
634 def_bool y
635 depends on NEED_MULTIPLE_NODES
636
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637config ARCH_MEMORY_PROBE
638 def_bool y
639 depends on MEMORY_HOTPLUG
640
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641config PPC_64K_PAGES
642 bool "64k page size"
863c84b9 643 depends on PPC64
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644 help
645 This option changes the kernel logical page size to 64k. On machines
646 without processor support for 64k pages, the kernel will simulate
647 them by loading each individual 4k page on demand transparently,
648 while on hardware with such support, it will be used to map
649 normal application pages.
650
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651config SCHED_SMT
652 bool "SMT (Hyperthreading) scheduler support"
653 depends on PPC64 && SMP
654 default off
655 help
656 SMT scheduler support improves the CPU scheduler's decision making
657 when dealing with POWER5 cpus at a cost of slightly increased
658 overhead in some places. If unsure say N here.
659
660config PROC_DEVICETREE
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661 bool "Support for device tree in /proc"
662 depends on PROC_FS
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663 help
664 This option adds a device-tree directory under /proc which contains
665 an image of the device tree that the kernel copies from Open
5f296755 666 Firmware or other boot firmware. If unsure, say Y here.
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667
668source "arch/powerpc/platforms/prep/Kconfig"
669
670config CMDLINE_BOOL
671 bool "Default bootloader kernel arguments"
672 depends on !PPC_ISERIES
673
674config CMDLINE
675 string "Initial kernel command string"
676 depends on CMDLINE_BOOL
677 default "console=ttyS0,9600 console=tty0 root=/dev/sda2"
678 help
679 On some platforms, there is currently no way for the boot loader to
680 pass arguments to the kernel. For these platforms, you can supply
681 some command-line options at build time by entering them here. In
682 most cases you will need to specify the root device here.
683
684if !44x || BROKEN
685source kernel/power/Kconfig
686endif
687
688config SECCOMP
689 bool "Enable seccomp to safely compute untrusted bytecode"
690 depends on PROC_FS
691 default y
692 help
693 This kernel feature is useful for number crunching applications
694 that may need to compute untrusted bytecode during their
695 execution. By using pipes or other transports made available to
696 the process as file descriptors supporting the read/write
697 syscalls, it's possible to isolate those applications in
698 their own address space using seccomp. Once seccomp is
699 enabled via /proc/<pid>/seccomp, it cannot be disabled
700 and the task is only allowed to execute a few safe syscalls
701 defined by each seccomp mode.
702
703 If unsure, say Y. Only embedded should say N here.
704
705endmenu
706
707config ISA_DMA_API
708 bool
709 default y
710
711menu "Bus options"
712
713config ISA
714 bool "Support for ISA-bus hardware"
715 depends on PPC_PREP || PPC_CHRP
f9bd170a 716 select PPC_I8259
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717 help
718 Find out whether you have ISA slots on your motherboard. ISA is the
719 name of a bus system, i.e. the way the CPU talks to the other stuff
720 inside your box. If you have an Apple machine, say N here; if you
721 have an IBM RS/6000 or pSeries machine or a PReP machine, say Y. If
722 you have an embedded board, consult your board documentation.
723
724config GENERIC_ISA_DMA
725 bool
726 depends on PPC64 || POWER4 || 6xx && !CPM2
727 default y
728
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729config PPC_I8259
730 bool
731 default y if 85xx
732 default n
733
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734config PPC_INDIRECT_PCI
735 bool
736 depends on PCI
08264cbc 737 default y if 40x || 44x || 85xx
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738 default n
739
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740config EISA
741 bool
742
743config SBUS
744 bool
745
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746config FSL_SOC
747 bool
748
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749# Yes MCA RS/6000s exist but Linux-PPC does not currently support any
750config MCA
751 bool
752
753config PCI
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754 bool "PCI support" if 40x || CPM2 || PPC_83xx || 85xx || PPC_MPC52xx || (EMBEDDED && PPC_ISERIES)
755 default y if !40x && !CPM2 && !8xx && !APUS && !PPC_83xx && !85xx
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756 default PCI_PERMEDIA if !4xx && !CPM2 && !8xx && APUS
757 default PCI_QSPAN if !4xx && !CPM2 && 8xx
758 help
759 Find out whether your system includes a PCI bus. PCI is the name of
760 a bus system, i.e. the way the CPU talks to the other stuff inside
761 your box. If you say Y here, the kernel will include drivers and
762 infrastructure code to support PCI bus devices.
763
764config PCI_DOMAINS
765 bool
766 default PCI
767
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768config PCI_QSPAN
769 bool "QSpan PCI"
770 depends on !4xx && !CPM2 && 8xx
f9bd170a 771 select PPC_I8259
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772 help
773 Say Y here if you have a system based on a Motorola 8xx-series
774 embedded processor with a QSPAN PCI interface, otherwise say N.
775
776config PCI_8260
777 bool
778 depends on PCI && 8260
25635c71 779 select PPC_INDIRECT_PCI
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780 default y
781
782config 8260_PCI9
783 bool " Enable workaround for MPC826x erratum PCI 9"
784 depends on PCI_8260 && !ADS8272
785 default y
786
787choice
788 prompt " IDMA channel for PCI 9 workaround"
789 depends on 8260_PCI9
790
791config 8260_PCI9_IDMA1
792 bool "IDMA1"
793
794config 8260_PCI9_IDMA2
795 bool "IDMA2"
796
797config 8260_PCI9_IDMA3
798 bool "IDMA3"
799
800config 8260_PCI9_IDMA4
801 bool "IDMA4"
802
803endchoice
804
805source "drivers/pci/Kconfig"
806
807source "drivers/pcmcia/Kconfig"
808
809source "drivers/pci/hotplug/Kconfig"
810
811endmenu
812
813menu "Advanced setup"
814 depends on PPC32
815
816config ADVANCED_OPTIONS
817 bool "Prompt for advanced kernel configuration options"
818 help
819 This option will enable prompting for a variety of advanced kernel
820 configuration options. These options can cause the kernel to not
821 work if they are set incorrectly, but can be used to optimize certain
822 aspects of kernel memory management.
823
824 Unless you know what you are doing, say N here.
825
826comment "Default settings for advanced configuration options are used"
827 depends on !ADVANCED_OPTIONS
828
829config HIGHMEM_START_BOOL
830 bool "Set high memory pool address"
831 depends on ADVANCED_OPTIONS && HIGHMEM
832 help
833 This option allows you to set the base address of the kernel virtual
834 area used to map high memory pages. This can be useful in
835 optimizing the layout of kernel virtual memory.
836
837 Say N here unless you know what you are doing.
838
839config HIGHMEM_START
840 hex "Virtual start address of high memory pool" if HIGHMEM_START_BOOL
841 default "0xfe000000"
842
843config LOWMEM_SIZE_BOOL
844 bool "Set maximum low memory"
845 depends on ADVANCED_OPTIONS
846 help
847 This option allows you to set the maximum amount of memory which
848 will be used as "low memory", that is, memory which the kernel can
849 access directly, without having to set up a kernel virtual mapping.
850 This can be useful in optimizing the layout of kernel virtual
851 memory.
852
853 Say N here unless you know what you are doing.
854
855config LOWMEM_SIZE
856 hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
857 default "0x30000000"
858
859config KERNEL_START_BOOL
860 bool "Set custom kernel base address"
861 depends on ADVANCED_OPTIONS
862 help
863 This option allows you to set the kernel virtual address at which
864 the kernel will map low memory (the kernel image will be linked at
865 this address). This can be useful in optimizing the virtual memory
866 layout of the system.
867
868 Say N here unless you know what you are doing.
869
870config KERNEL_START
871 hex "Virtual address of kernel base" if KERNEL_START_BOOL
872 default "0xc0000000"
873
874config TASK_SIZE_BOOL
875 bool "Set custom user task size"
876 depends on ADVANCED_OPTIONS
877 help
878 This option allows you to set the amount of virtual address space
879 allocated to user tasks. This can be useful in optimizing the
880 virtual memory layout of the system.
881
882 Say N here unless you know what you are doing.
883
884config TASK_SIZE
885 hex "Size of user task space" if TASK_SIZE_BOOL
886 default "0x80000000"
887
888config CONSISTENT_START_BOOL
889 bool "Set custom consistent memory pool address"
890 depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
891 help
892 This option allows you to set the base virtual address
893 of the the consistent memory pool. This pool of virtual
894 memory is used to make consistent memory allocations.
895
896config CONSISTENT_START
897 hex "Base virtual address of consistent memory pool" if CONSISTENT_START_BOOL
898 default "0xff100000" if NOT_COHERENT_CACHE
899
900config CONSISTENT_SIZE_BOOL
901 bool "Set custom consistent memory pool size"
902 depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
903 help
904 This option allows you to set the size of the the
905 consistent memory pool. This pool of virtual memory
906 is used to make consistent memory allocations.
907
908config CONSISTENT_SIZE
909 hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL
910 default "0x00200000" if NOT_COHERENT_CACHE
911
912config BOOT_LOAD_BOOL
913 bool "Set the boot link/load address"
914 depends on ADVANCED_OPTIONS && !PPC_MULTIPLATFORM
915 help
916 This option allows you to set the initial load address of the zImage
917 or zImage.initrd file. This can be useful if you are on a board
918 which has a small amount of memory.
919
920 Say N here unless you know what you are doing.
921
922config BOOT_LOAD
923 hex "Link/load address for booting" if BOOT_LOAD_BOOL
924 default "0x00400000" if 40x || 8xx || 8260
925 default "0x01000000" if 44x
926 default "0x00800000"
927
928config PIN_TLB
929 bool "Pinned Kernel TLBs (860 ONLY)"
930 depends on ADVANCED_OPTIONS && 8xx
931endmenu
932
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933if PPC64
934config KERNEL_START
935 hex
eeb2d218 936 default "0xc000000000000000"
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937endif
938
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939source "net/Kconfig"
940
941source "drivers/Kconfig"
942
943source "fs/Kconfig"
944
945# XXX source "arch/ppc/8xx_io/Kconfig"
946
947# XXX source "arch/ppc/8260_io/Kconfig"
948
949source "arch/powerpc/platforms/iseries/Kconfig"
950
951source "lib/Kconfig"
952
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953menu "Instrumentation Support"
954 depends on EXPERIMENTAL
955
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956source "arch/powerpc/oprofile/Kconfig"
957
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958config KPROBES
959 bool "Kprobes (EXPERIMENTAL)"
7568cb4e 960 depends on PPC64
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961 help
962 Kprobes allows you to trap at almost any kernel address and
963 execute a callback function. register_kprobe() establishes
964 a probepoint and specifies the callback. Kprobes is useful
965 for kernel debugging, non-intrusive instrumentation and testing.
966 If in doubt, say "N".
967endmenu
968
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969source "arch/powerpc/Kconfig.debug"
970
971source "security/Kconfig"
972
973config KEYS_COMPAT
974 bool
975 depends on COMPAT && KEYS
976 default y
977
978source "crypto/Kconfig"