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