Version:  2.0.40 2.2.26 2.4.37 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 3.10 3.11 3.12 3.13 3.14 3.15 3.16 3.17 3.18

Linux/arch/powerpc/Kconfig

  1 source "arch/powerpc/platforms/Kconfig.cputype"
  2 
  3 config PPC32
  4         bool
  5         default y if !PPC64
  6 
  7 config 32BIT
  8         bool
  9         default y if PPC32
 10 
 11 config 64BIT
 12         bool
 13         default y if PPC64
 14 
 15 config WORD_SIZE
 16         int
 17         default 64 if PPC64
 18         default 32 if !PPC64
 19 
 20 config ARCH_PHYS_ADDR_T_64BIT
 21        def_bool PPC64 || PHYS_64BIT
 22 
 23 config ARCH_DMA_ADDR_T_64BIT
 24         def_bool ARCH_PHYS_ADDR_T_64BIT
 25 
 26 config MMU
 27         bool
 28         default y
 29 
 30 config HAVE_SETUP_PER_CPU_AREA
 31         def_bool PPC64
 32 
 33 config NEED_PER_CPU_EMBED_FIRST_CHUNK
 34         def_bool PPC64
 35 
 36 config NR_IRQS
 37         int "Number of virtual interrupt numbers"
 38         range 32 32768
 39         default "512"
 40         help
 41           This defines the number of virtual interrupt numbers the kernel
 42           can manage. Virtual interrupt numbers are what you see in
 43           /proc/interrupts. If you configure your system to have too few,
 44           drivers will fail to load or worse - handle with care.
 45 
 46 config STACKTRACE_SUPPORT
 47         bool
 48         default y
 49 
 50 config HAVE_LATENCYTOP_SUPPORT
 51         def_bool y
 52 
 53 config TRACE_IRQFLAGS_SUPPORT
 54         bool
 55         default y
 56 
 57 config LOCKDEP_SUPPORT
 58         bool
 59         default y
 60 
 61 config RWSEM_GENERIC_SPINLOCK
 62         bool
 63 
 64 config RWSEM_XCHGADD_ALGORITHM
 65         bool
 66         default y
 67 
 68 config GENERIC_LOCKBREAK
 69         bool
 70         default y
 71         depends on SMP && PREEMPT
 72 
 73 config ARCH_HAS_ILOG2_U32
 74         bool
 75         default y
 76 
 77 config ARCH_HAS_ILOG2_U64
 78         bool
 79         default y if 64BIT
 80 
 81 config GENERIC_HWEIGHT
 82         bool
 83         default y
 84 
 85 config PPC
 86         bool
 87         default y
 88         select ARCH_MIGHT_HAVE_PC_PARPORT
 89         select ARCH_MIGHT_HAVE_PC_SERIO
 90         select BINFMT_ELF
 91         select OF
 92         select OF_EARLY_FLATTREE
 93         select OF_RESERVED_MEM
 94         select HAVE_FTRACE_MCOUNT_RECORD
 95         select HAVE_DYNAMIC_FTRACE
 96         select HAVE_FUNCTION_TRACER
 97         select HAVE_FUNCTION_GRAPH_TRACER
 98         select SYSCTL_EXCEPTION_TRACE
 99         select ARCH_WANT_OPTIONAL_GPIOLIB
100         select VIRT_TO_BUS if !PPC64
101         select HAVE_IDE
102         select HAVE_IOREMAP_PROT
103         select HAVE_EFFICIENT_UNALIGNED_ACCESS if !CPU_LITTLE_ENDIAN
104         select HAVE_KPROBES
105         select HAVE_ARCH_KGDB
106         select HAVE_KRETPROBES
107         select HAVE_ARCH_TRACEHOOK
108         select HAVE_MEMBLOCK
109         select HAVE_MEMBLOCK_NODE_MAP
110         select HAVE_DMA_ATTRS
111         select HAVE_DMA_API_DEBUG
112         select HAVE_OPROFILE
113         select HAVE_DEBUG_KMEMLEAK
114         select ARCH_HAS_SG_CHAIN
115         select GENERIC_ATOMIC64 if PPC32
116         select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
117         select HAVE_PERF_EVENTS
118         select HAVE_REGS_AND_STACK_ACCESS_API
119         select HAVE_HW_BREAKPOINT if PERF_EVENTS && PPC_BOOK3S_64
120         select ARCH_WANT_IPC_PARSE_VERSION
121         select SPARSE_IRQ
122         select IRQ_DOMAIN
123         select GENERIC_IRQ_SHOW
124         select GENERIC_IRQ_SHOW_LEVEL
125         select IRQ_FORCED_THREADING
126         select HAVE_RCU_TABLE_FREE if SMP
127         select HAVE_SYSCALL_TRACEPOINTS
128         select HAVE_BPF_JIT if PPC64
129         select HAVE_ARCH_JUMP_LABEL
130         select ARCH_HAVE_NMI_SAFE_CMPXCHG
131         select GENERIC_SMP_IDLE_THREAD
132         select GENERIC_CMOS_UPDATE
133         select GENERIC_TIME_VSYSCALL_OLD
134         select GENERIC_CLOCKEVENTS
135         select GENERIC_CLOCKEVENTS_BROADCAST if SMP
136         select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
137         select GENERIC_STRNCPY_FROM_USER
138         select GENERIC_STRNLEN_USER
139         select HAVE_MOD_ARCH_SPECIFIC
140         select MODULES_USE_ELF_RELA
141         select CLONE_BACKWARDS
142         select ARCH_USE_BUILTIN_BSWAP
143         select OLD_SIGSUSPEND
144         select OLD_SIGACTION if PPC32
145         select HAVE_DEBUG_STACKOVERFLOW
146         select HAVE_IRQ_EXIT_ON_IRQ_STACK
147         select ARCH_USE_CMPXCHG_LOCKREF if PPC64
148         select HAVE_ARCH_AUDITSYSCALL
149         select ARCH_SUPPORTS_ATOMIC_RMW
150         select DCACHE_WORD_ACCESS if PPC64 && CPU_LITTLE_ENDIAN
151 
152 config GENERIC_CSUM
153         def_bool CPU_LITTLE_ENDIAN
154 
155 config EARLY_PRINTK
156         bool
157         default y
158 
159 config PANIC_TIMEOUT
160         int
161         default 180
162 
163 config COMPAT
164         bool
165         default y if PPC64
166         select COMPAT_BINFMT_ELF
167         select ARCH_WANT_OLD_COMPAT_IPC
168         select COMPAT_OLD_SIGACTION
169 
170 config SYSVIPC_COMPAT
171         bool
172         depends on COMPAT && SYSVIPC
173         default y
174 
175 # All PPC32s use generic nvram driver through ppc_md
176 config GENERIC_NVRAM
177         bool
178         default y if PPC32
179 
180 config SCHED_OMIT_FRAME_POINTER
181         bool
182         default y
183 
184 config ARCH_MAY_HAVE_PC_FDC
185         bool
186         default PCI
187 
188 config PPC_OF
189         def_bool y
190 
191 config PPC_UDBG_16550
192         bool
193         default n
194 
195 config GENERIC_TBSYNC
196         bool
197         default y if PPC32 && SMP
198         default n
199 
200 config AUDIT_ARCH
201         bool
202         default y
203 
204 config GENERIC_BUG
205         bool
206         default y
207         depends on BUG
208 
209 config SYS_SUPPORTS_APM_EMULATION
210         default y if PMAC_APM_EMU
211         bool
212 
213 config EPAPR_BOOT
214         bool
215         help
216           Used to allow a board to specify it wants an ePAPR compliant wrapper.
217         default n
218 
219 config DEFAULT_UIMAGE
220         bool
221         help
222           Used to allow a board to specify it wants a uImage built by default
223         default n
224 
225 config ARCH_HIBERNATION_POSSIBLE
226         bool
227         default y
228 
229 config ARCH_SUSPEND_POSSIBLE
230         def_bool y
231         depends on ADB_PMU || PPC_EFIKA || PPC_LITE5200 || PPC_83xx || \
232                    (PPC_85xx && !PPC_E500MC) || PPC_86xx || PPC_PSERIES \
233                    || 44x || 40x
234 
235 config PPC_DCR_NATIVE
236         bool
237         default n
238 
239 config PPC_DCR_MMIO
240         bool
241         default n
242 
243 config PPC_DCR
244         bool
245         depends on PPC_DCR_NATIVE || PPC_DCR_MMIO
246         default y
247 
248 config PPC_OF_PLATFORM_PCI
249         bool
250         depends on PCI
251         depends on PPC64 # not supported on 32 bits yet
252         default n
253 
254 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
255         def_bool y
256 
257 config ARCH_SUPPORTS_UPROBES
258         def_bool y
259 
260 config PPC_ADV_DEBUG_REGS
261         bool
262         depends on 40x || BOOKE
263         default y
264 
265 config PPC_ADV_DEBUG_IACS
266         int
267         depends on PPC_ADV_DEBUG_REGS
268         default 4 if 44x
269         default 2
270 
271 config PPC_ADV_DEBUG_DACS
272         int
273         depends on PPC_ADV_DEBUG_REGS
274         default 2
275 
276 config PPC_ADV_DEBUG_DVCS
277         int
278         depends on PPC_ADV_DEBUG_REGS
279         default 2 if 44x
280         default 0
281 
282 config PPC_ADV_DEBUG_DAC_RANGE
283         bool
284         depends on PPC_ADV_DEBUG_REGS && 44x
285         default y
286 
287 config PPC_EMULATE_SSTEP
288         bool
289         default y if KPROBES || UPROBES || XMON || HAVE_HW_BREAKPOINT
290 
291 config ZONE_DMA32
292         bool
293         default y if PPC64
294 
295 source "init/Kconfig"
296 
297 source "kernel/Kconfig.freezer"
298 
299 source "arch/powerpc/sysdev/Kconfig"
300 source "arch/powerpc/platforms/Kconfig"
301 
302 menu "Kernel options"
303 
304 config HIGHMEM
305         bool "High memory support"
306         depends on PPC32
307 
308 source kernel/Kconfig.hz
309 source kernel/Kconfig.preempt
310 source "fs/Kconfig.binfmt"
311 
312 config HUGETLB_PAGE_SIZE_VARIABLE
313         bool
314         depends on HUGETLB_PAGE
315         default y
316 
317 config MATH_EMULATION
318         bool "Math emulation"
319         depends on 4xx || 8xx || PPC_MPC832x || BOOKE
320         ---help---
321           Some PowerPC chips designed for embedded applications do not have
322           a floating-point unit and therefore do not implement the
323           floating-point instructions in the PowerPC instruction set.  If you
324           say Y here, the kernel will include code to emulate a floating-point
325           unit, which will allow programs that use floating-point
326           instructions to run.
327 
328           This is also useful to emulate missing (optional) instructions
329           such as fsqrt on cores that do have an FPU but do not implement
330           them (such as Freescale BookE).
331 
332 choice
333         prompt "Math emulation options"
334         default MATH_EMULATION_FULL
335         depends on MATH_EMULATION
336 
337 config  MATH_EMULATION_FULL
338         bool "Emulate all the floating point instructions"
339         ---help---
340           Select this option will enable the kernel to support to emulate
341           all the floating point instructions. If your SoC doesn't have
342           a FPU, you should select this.
343 
344 config MATH_EMULATION_HW_UNIMPLEMENTED
345         bool "Just emulate the FPU unimplemented instructions"
346         ---help---
347           Select this if you know there does have a hardware FPU on your
348           SoC, but some floating point instructions are not implemented by that.
349 
350 endchoice
351 
352 config PPC_TRANSACTIONAL_MEM
353        bool "Transactional Memory support for POWERPC"
354        depends on PPC_BOOK3S_64
355        depends on SMP
356        select ALTIVEC
357        select VSX
358        default n
359        ---help---
360          Support user-mode Transactional Memory on POWERPC.
361 
362 config IOMMU_HELPER
363         def_bool PPC64
364 
365 config SWIOTLB
366         bool "SWIOTLB support"
367         default n
368         select IOMMU_HELPER
369         ---help---
370           Support for IO bounce buffering for systems without an IOMMU.
371           This allows us to DMA to the full physical address space on
372           platforms where the size of a physical address is larger
373           than the bus address.  Not all platforms support this.
374 
375 config HOTPLUG_CPU
376         bool "Support for enabling/disabling CPUs"
377         depends on SMP && (PPC_PSERIES || \
378         PPC_PMAC || PPC_POWERNV || (PPC_85xx && !PPC_E500MC))
379         ---help---
380           Say Y here to be able to disable and re-enable individual
381           CPUs at runtime on SMP machines.
382 
383           Say N if you are unsure.
384 
385 config ARCH_CPU_PROBE_RELEASE
386         def_bool y
387         depends on HOTPLUG_CPU
388 
389 config ARCH_ENABLE_MEMORY_HOTPLUG
390         def_bool y
391 
392 config ARCH_HAS_WALK_MEMORY
393         def_bool y
394 
395 config ARCH_ENABLE_MEMORY_HOTREMOVE
396         def_bool y
397 
398 config PPC64_SUPPORTS_MEMORY_FAILURE
399         bool "Add support for memory hwpoison"
400         depends on PPC_BOOK3S_64
401         default "y" if PPC_POWERNV
402         select ARCH_SUPPORTS_MEMORY_FAILURE
403 
404 config KEXEC
405         bool "kexec system call"
406         depends on (PPC_BOOK3S || FSL_BOOKE || (44x && !SMP))
407         help
408           kexec is a system call that implements the ability to shutdown your
409           current kernel, and to start another kernel.  It is like a reboot
410           but it is independent of the system firmware.   And like a reboot
411           you can start any kernel with it, not just Linux.
412 
413           The name comes from the similarity to the exec system call.
414 
415           It is an ongoing process to be certain the hardware in a machine
416           is properly shutdown, so do not be surprised if this code does not
417           initially work for you.  As of this writing the exact hardware
418           interface is strongly in flux, so no good recommendation can be
419           made.
420 
421 config CRASH_DUMP
422         bool "Build a kdump crash kernel"
423         depends on PPC64 || 6xx || FSL_BOOKE || (44x && !SMP)
424         select RELOCATABLE if (PPC64 && !COMPILE_TEST) || 44x || FSL_BOOKE
425         help
426           Build a kernel suitable for use as a kdump capture kernel.
427           The same kernel binary can be used as production kernel and dump
428           capture kernel.
429 
430 config FA_DUMP
431         bool "Firmware-assisted dump"
432         depends on PPC64 && PPC_RTAS && CRASH_DUMP && KEXEC
433         help
434           A robust mechanism to get reliable kernel crash dump with
435           assistance from firmware. This approach does not use kexec,
436           instead firmware assists in booting the kdump kernel
437           while preserving memory contents. Firmware-assisted dump
438           is meant to be a kdump replacement offering robustness and
439           speed not possible without system firmware assistance.
440 
441           If unsure, say "N"
442 
443 config IRQ_ALL_CPUS
444         bool "Distribute interrupts on all CPUs by default"
445         depends on SMP
446         help
447           This option gives the kernel permission to distribute IRQs across
448           multiple CPUs.  Saying N here will route all IRQs to the first
449           CPU.  Generally saying Y is safe, although some problems have been
450           reported with SMP Power Macintoshes with this option enabled.
451 
452 config NUMA
453         bool "NUMA support"
454         depends on PPC64
455         default y if SMP && PPC_PSERIES
456 
457 config NODES_SHIFT
458         int
459         default "8" if PPC64
460         default "4"
461         depends on NEED_MULTIPLE_NODES
462 
463 config USE_PERCPU_NUMA_NODE_ID
464         def_bool y
465         depends on NUMA
466 
467 config HAVE_MEMORYLESS_NODES
468         def_bool y
469         depends on NUMA
470 
471 config ARCH_SELECT_MEMORY_MODEL
472         def_bool y
473         depends on PPC64
474 
475 config ARCH_FLATMEM_ENABLE
476         def_bool y
477         depends on (PPC64 && !NUMA) || PPC32
478 
479 config ARCH_SPARSEMEM_ENABLE
480         def_bool y
481         depends on PPC64
482         select SPARSEMEM_VMEMMAP_ENABLE
483 
484 config ARCH_SPARSEMEM_DEFAULT
485         def_bool y
486         depends on (SMP && PPC_PSERIES) || PPC_PS3
487 
488 config SYS_SUPPORTS_HUGETLBFS
489         bool
490 
491 source "mm/Kconfig"
492 
493 config ARCH_MEMORY_PROBE
494         def_bool y
495         depends on MEMORY_HOTPLUG
496 
497 # Some NUMA nodes have memory ranges that span
498 # other nodes.  Even though a pfn is valid and
499 # between a node's start and end pfns, it may not
500 # reside on that node.  See memmap_init_zone()
501 # for details.
502 config NODES_SPAN_OTHER_NODES
503         def_bool y
504         depends on NEED_MULTIPLE_NODES
505 
506 config PPC_HAS_HASH_64K
507         bool
508         depends on PPC64
509         default n
510 
511 config STDBINUTILS
512         bool "Using standard binutils settings"
513         depends on 44x
514         default y
515         help
516           Turning this option off allows you to select 256KB PAGE_SIZE on 44x.
517           Note, that kernel will be able to run only those applications,
518           which had been compiled using binutils later than 2.17.50.0.3 with
519           '-zmax-page-size' set to 256K (the default is 64K). Or, if using
520           the older binutils, you can patch them with a trivial patch, which
521           changes the ELF_MAXPAGESIZE definition from 0x10000 to 0x40000.
522 
523 choice
524         prompt "Page size"
525         default PPC_4K_PAGES
526         help
527           Select the kernel logical page size. Increasing the page size
528           will reduce software overhead at each page boundary, allow
529           hardware prefetch mechanisms to be more effective, and allow
530           larger dma transfers increasing IO efficiency and reducing
531           overhead. However the utilization of memory will increase.
532           For example, each cached file will using a multiple of the
533           page size to hold its contents and the difference between the
534           end of file and the end of page is wasted.
535 
536           Some dedicated systems, such as software raid serving with
537           accelerated calculations, have shown significant increases.
538 
539           If you configure a 64 bit kernel for 64k pages but the
540           processor does not support them, then the kernel will simulate
541           them with 4k pages, loading them on demand, but with the
542           reduced software overhead and larger internal fragmentation.
543           For the 32 bit kernel, a large page option will not be offered
544           unless it is supported by the configured processor.
545 
546           If unsure, choose 4K_PAGES.
547 
548 config PPC_4K_PAGES
549         bool "4k page size"
550 
551 config PPC_16K_PAGES
552         bool "16k page size" if 44x
553 
554 config PPC_64K_PAGES
555         bool "64k page size" if 44x || PPC_STD_MMU_64 || PPC_BOOK3E_64
556         depends on !PPC_FSL_BOOK3E
557         select PPC_HAS_HASH_64K if PPC_STD_MMU_64
558 
559 config PPC_256K_PAGES
560         bool "256k page size" if 44x
561         depends on !STDBINUTILS
562         help
563           Make the page size 256k.
564 
565           As the ELF standard only requires alignment to support page
566           sizes up to 64k, you will need to compile all of your user
567           space applications with a non-standard binutils settings
568           (see the STDBINUTILS description for details).
569 
570           Say N unless you know what you are doing.
571 
572 endchoice
573 
574 config FORCE_MAX_ZONEORDER
575         int "Maximum zone order"
576         range 9 64 if PPC64 && PPC_64K_PAGES
577         default "9" if PPC64 && PPC_64K_PAGES
578         range 13 64 if PPC64 && !PPC_64K_PAGES
579         default "13" if PPC64 && !PPC_64K_PAGES
580         range 9 64 if PPC32 && PPC_16K_PAGES
581         default "9" if PPC32 && PPC_16K_PAGES
582         range 7 64 if PPC32 && PPC_64K_PAGES
583         default "7" if PPC32 && PPC_64K_PAGES
584         range 5 64 if PPC32 && PPC_256K_PAGES
585         default "5" if PPC32 && PPC_256K_PAGES
586         range 11 64
587         default "11"
588         help
589           The kernel memory allocator divides physically contiguous memory
590           blocks into "zones", where each zone is a power of two number of
591           pages.  This option selects the largest power of two that the kernel
592           keeps in the memory allocator.  If you need to allocate very large
593           blocks of physically contiguous memory, then you may need to
594           increase this value.
595 
596           This config option is actually maximum order plus one. For example,
597           a value of 11 means that the largest free memory block is 2^10 pages.
598 
599           The page size is not necessarily 4KB.  For example, on 64-bit
600           systems, 64KB pages can be enabled via CONFIG_PPC_64K_PAGES.  Keep
601           this in mind when choosing a value for this option.
602 
603 config PPC_SUBPAGE_PROT
604         bool "Support setting protections for 4k subpages"
605         depends on PPC_STD_MMU_64 && PPC_64K_PAGES
606         help
607           This option adds support for a system call to allow user programs
608           to set access permissions (read/write, readonly, or no access)
609           on the 4k subpages of each 64k page.
610 
611 config PPC_COPRO_BASE
612         bool
613         default n
614 
615 config SCHED_SMT
616         bool "SMT (Hyperthreading) scheduler support"
617         depends on PPC64 && SMP
618         help
619           SMT scheduler support improves the CPU scheduler's decision making
620           when dealing with POWER5 cpus at a cost of slightly increased
621           overhead in some places. If unsure say N here.
622 
623 config PPC_DENORMALISATION
624         bool "PowerPC denormalisation exception handling"
625         depends on PPC_BOOK3S_64
626         default "y" if PPC_POWERNV
627         ---help---
628           Add support for handling denormalisation of single precision
629           values.  Useful for bare metal only.  If unsure say Y here.
630 
631 config CMDLINE_BOOL
632         bool "Default bootloader kernel arguments"
633 
634 config 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 
644 config CMDLINE_FORCE
645         bool "Always use the default kernel command string"
646         depends on CMDLINE_BOOL
647         help
648           Always use the default kernel command string, even if the boot
649           loader passes other arguments to the kernel.
650           This is useful if you cannot or don't want to change the
651           command-line options your boot loader passes to the kernel.
652 
653 config EXTRA_TARGETS
654         string "Additional default image types"
655         help
656           List additional targets to be built by the bootwrapper here (separated
657           by spaces).  This is useful for targets that depend of device tree
658           files in the .dts directory.
659 
660           Targets in this list will be build as part of the default build
661           target, or when the user does a 'make zImage' or a
662           'make zImage.initrd'.
663 
664           If unsure, leave blank
665 
666 config ARCH_WANTS_FREEZER_CONTROL
667         def_bool y
668         depends on ADB_PMU
669 
670 source kernel/power/Kconfig
671 
672 config SECCOMP
673         bool "Enable seccomp to safely compute untrusted bytecode"
674         depends on PROC_FS
675         default y
676         help
677           This kernel feature is useful for number crunching applications
678           that may need to compute untrusted bytecode during their
679           execution. By using pipes or other transports made available to
680           the process as file descriptors supporting the read/write
681           syscalls, it's possible to isolate those applications in
682           their own address space using seccomp. Once seccomp is
683           enabled via /proc/<pid>/seccomp, it cannot be disabled
684           and the task is only allowed to execute a few safe syscalls
685           defined by each seccomp mode.
686 
687           If unsure, say Y. Only embedded should say N here.
688 
689 endmenu
690 
691 config ISA_DMA_API
692         bool
693         default PCI
694 
695 menu "Bus options"
696 
697 config ISA
698         bool "Support for ISA-bus hardware"
699         depends on PPC_CHRP
700         select PPC_I8259
701         help
702           Find out whether you have ISA slots on your motherboard.  ISA is the
703           name of a bus system, i.e. the way the CPU talks to the other stuff
704           inside your box.  If you have an Apple machine, say N here; if you
705           have an IBM RS/6000 or pSeries machine, say Y.  If you have an
706           embedded board, consult your board documentation.
707 
708 config ZONE_DMA
709         bool
710         default y
711 
712 config NEED_DMA_MAP_STATE
713         def_bool (PPC64 || NOT_COHERENT_CACHE)
714 
715 config NEED_SG_DMA_LENGTH
716         def_bool y
717 
718 config GENERIC_ISA_DMA
719         bool
720         depends on ISA_DMA_API
721         default y
722 
723 config PPC_INDIRECT_PCI
724         bool
725         depends on PCI
726         default y if 40x || 44x
727         default n
728 
729 config EISA
730         bool
731 
732 config SBUS
733         bool
734 
735 config FSL_SOC
736         bool
737 
738 config FSL_PCI
739         bool
740         select PPC_INDIRECT_PCI
741         select PCI_QUIRKS
742 
743 config FSL_PMC
744         bool
745         default y
746         depends on SUSPEND && (PPC_85xx || PPC_86xx)
747         help
748           Freescale MPC85xx/MPC86xx power management controller support
749           (suspend/resume). For MPC83xx see platforms/83xx/suspend.c
750 
751 config PPC4xx_CPM
752         bool
753         default y
754         depends on SUSPEND && (44x || 40x)
755         help
756           PPC4xx Clock Power Management (CPM) support (suspend/resume).
757           It also enables support for two different idle states (idle-wait
758           and idle-doze).
759 
760 config 4xx_SOC
761         bool
762 
763 config FSL_LBC
764         bool "Freescale Local Bus support"
765         depends on FSL_SOC
766         help
767           Enables reporting of errors from the Freescale local bus
768           controller.  Also contains some common code used by
769           drivers for specific local bus peripherals.
770 
771 config FSL_GTM
772         bool
773         depends on PPC_83xx || QUICC_ENGINE || CPM2
774         help
775           Freescale General-purpose Timers support
776 
777 # Yes MCA RS/6000s exist but Linux-PPC does not currently support any
778 config MCA
779         bool
780 
781 # Platforms that what PCI turned unconditionally just do select PCI
782 # in their config node.  Platforms that want to choose at config
783 # time should select PPC_PCI_CHOICE
784 config PPC_PCI_CHOICE
785         bool
786 
787 config PCI
788         bool "PCI support" if PPC_PCI_CHOICE
789         default y if !40x && !CPM2 && !8xx && !PPC_83xx \
790                 && !PPC_85xx && !PPC_86xx && !GAMECUBE_COMMON
791         default PCI_QSPAN if !4xx && !CPM2 && 8xx
792         select GENERIC_PCI_IOMAP
793         help
794           Find out whether your system includes a PCI bus. PCI is the name of
795           a bus system, i.e. the way the CPU talks to the other stuff inside
796           your box.  If you say Y here, the kernel will include drivers and
797           infrastructure code to support PCI bus devices.
798 
799 config PCI_DOMAINS
800         def_bool PCI
801 
802 config PCI_SYSCALL
803         def_bool PCI
804 
805 config PCI_QSPAN
806         bool "QSpan PCI"
807         depends on !4xx && !CPM2 && 8xx
808         select PPC_I8259
809         help
810           Say Y here if you have a system based on a Motorola 8xx-series
811           embedded processor with a QSPAN PCI interface, otherwise say N.
812 
813 config PCI_8260
814         bool
815         depends on PCI && 8260
816         select PPC_INDIRECT_PCI
817         default y
818 
819 source "drivers/pci/pcie/Kconfig"
820 
821 source "drivers/pci/Kconfig"
822 
823 source "drivers/pcmcia/Kconfig"
824 
825 source "drivers/pci/hotplug/Kconfig"
826 
827 config HAS_RAPIDIO
828         bool
829         default n
830 
831 config RAPIDIO
832         tristate "RapidIO support"
833         depends on HAS_RAPIDIO || PCI
834         help
835           If you say Y here, the kernel will include drivers and
836           infrastructure code to support RapidIO interconnect devices.
837 
838 config FSL_RIO
839         bool "Freescale Embedded SRIO Controller support"
840         depends on RAPIDIO = y && HAS_RAPIDIO
841         default "n"
842         ---help---
843           Include support for RapidIO controller on Freescale embedded
844           processors (MPC8548, MPC8641, etc).
845 
846 source "drivers/rapidio/Kconfig"
847 
848 endmenu
849 
850 config NONSTATIC_KERNEL
851         bool
852         default n
853 
854 menu "Advanced setup"
855         depends on PPC32
856 
857 config ADVANCED_OPTIONS
858         bool "Prompt for advanced kernel configuration options"
859         help
860           This option will enable prompting for a variety of advanced kernel
861           configuration options.  These options can cause the kernel to not
862           work if they are set incorrectly, but can be used to optimize certain
863           aspects of kernel memory management.
864 
865           Unless you know what you are doing, say N here.
866 
867 comment "Default settings for advanced configuration options are used"
868         depends on !ADVANCED_OPTIONS
869 
870 config LOWMEM_SIZE_BOOL
871         bool "Set maximum low memory"
872         depends on ADVANCED_OPTIONS
873         help
874           This option allows you to set the maximum amount of memory which
875           will be used as "low memory", that is, memory which the kernel can
876           access directly, without having to set up a kernel virtual mapping.
877           This can be useful in optimizing the layout of kernel virtual
878           memory.
879 
880           Say N here unless you know what you are doing.
881 
882 config LOWMEM_SIZE
883         hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
884         default "0x30000000"
885 
886 config LOWMEM_CAM_NUM_BOOL
887         bool "Set number of CAMs to use to map low memory"
888         depends on ADVANCED_OPTIONS && FSL_BOOKE
889         help
890           This option allows you to set the maximum number of CAM slots that
891           will be used to map low memory.  There are a limited number of slots
892           available and even more limited number that will fit in the L1 MMU.
893           However, using more entries will allow mapping more low memory.  This
894           can be useful in optimizing the layout of kernel virtual memory.
895 
896           Say N here unless you know what you are doing.
897 
898 config LOWMEM_CAM_NUM
899         depends on FSL_BOOKE
900         int "Number of CAMs to use to map low memory" if LOWMEM_CAM_NUM_BOOL
901         default 3
902 
903 config DYNAMIC_MEMSTART
904         bool "Enable page aligned dynamic load address for kernel"
905         depends on ADVANCED_OPTIONS && FLATMEM && (FSL_BOOKE || 44x)
906         select NONSTATIC_KERNEL
907         help
908           This option enables the kernel to be loaded at any page aligned
909           physical address. The kernel creates a mapping from KERNELBASE to 
910           the address where the kernel is loaded. The page size here implies
911           the TLB page size of the mapping for kernel on the particular platform.
912           Please refer to the init code for finding the TLB page size.
913 
914           DYNAMIC_MEMSTART is an easy way of implementing pseudo-RELOCATABLE
915           kernel image, where the only restriction is the page aligned kernel
916           load address. When this option is enabled, the compile time physical 
917           address CONFIG_PHYSICAL_START is ignored.
918 
919           This option is overridden by CONFIG_RELOCATABLE
920 
921 config RELOCATABLE
922         bool "Build a relocatable kernel"
923         depends on ADVANCED_OPTIONS && FLATMEM && (44x || FSL_BOOKE)
924         select NONSTATIC_KERNEL
925         help
926           This builds a kernel image that is capable of running at the
927           location the kernel is loaded at, without any alignment restrictions.
928           This feature is a superset of DYNAMIC_MEMSTART and hence overrides it.
929 
930           One use is for the kexec on panic case where the recovery kernel
931           must live at a different physical address than the primary
932           kernel.
933 
934           Note: If CONFIG_RELOCATABLE=y, then the kernel runs from the address
935           it has been loaded at and the compile time physical addresses
936           CONFIG_PHYSICAL_START is ignored.  However CONFIG_PHYSICAL_START
937           setting can still be useful to bootwrappers that need to know the
938           load address of the kernel (eg. u-boot/mkimage).
939 
940 config RELOCATABLE_PPC32
941         def_bool y
942         depends on PPC32 && RELOCATABLE
943 
944 config PAGE_OFFSET_BOOL
945         bool "Set custom page offset address"
946         depends on ADVANCED_OPTIONS
947         help
948           This option allows you to set the kernel virtual address at which
949           the kernel will map low memory.  This can be useful in optimizing
950           the virtual memory layout of the system.
951 
952           Say N here unless you know what you are doing.
953 
954 config PAGE_OFFSET
955         hex "Virtual address of memory base" if PAGE_OFFSET_BOOL
956         default "0xc0000000"
957 
958 config KERNEL_START_BOOL
959         bool "Set custom kernel base address"
960         depends on ADVANCED_OPTIONS
961         help
962           This option allows you to set the kernel virtual address at which
963           the kernel will be loaded.  Normally this should match PAGE_OFFSET
964           however there are times (like kdump) that one might not want them
965           to be the same.
966 
967           Say N here unless you know what you are doing.
968 
969 config KERNEL_START
970         hex "Virtual address of kernel base" if KERNEL_START_BOOL
971         default PAGE_OFFSET if PAGE_OFFSET_BOOL
972         default "0xc2000000" if CRASH_DUMP && !NONSTATIC_KERNEL
973         default "0xc0000000"
974 
975 config PHYSICAL_START_BOOL
976         bool "Set physical address where the kernel is loaded"
977         depends on ADVANCED_OPTIONS && FLATMEM && FSL_BOOKE
978         help
979           This gives the physical address where the kernel is loaded.
980 
981           Say N here unless you know what you are doing.
982 
983 config PHYSICAL_START
984         hex "Physical address where the kernel is loaded" if PHYSICAL_START_BOOL
985         default "0x02000000" if PPC_STD_MMU && CRASH_DUMP && !NONSTATIC_KERNEL
986         default "0x00000000"
987 
988 config PHYSICAL_ALIGN
989         hex
990         default "0x04000000" if FSL_BOOKE
991         help
992           This value puts the alignment restrictions on physical address
993           where kernel is loaded and run from. Kernel is compiled for an
994           address which meets above alignment restriction.
995 
996 config TASK_SIZE_BOOL
997         bool "Set custom user task size"
998         depends on ADVANCED_OPTIONS
999         help
1000           This option allows you to set the amount of virtual address space
1001           allocated to user tasks.  This can be useful in optimizing the
1002           virtual memory layout of the system.
1003 
1004           Say N here unless you know what you are doing.
1005 
1006 config TASK_SIZE
1007         hex "Size of user task space" if TASK_SIZE_BOOL
1008         default "0x80000000" if PPC_8xx
1009         default "0xc0000000"
1010 
1011 config CONSISTENT_SIZE_BOOL
1012         bool "Set custom consistent memory pool size"
1013         depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
1014         help
1015           This option allows you to set the size of the
1016           consistent memory pool.  This pool of virtual memory
1017           is used to make consistent memory allocations.
1018 
1019 config CONSISTENT_SIZE
1020         hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL
1021         default "0x00200000" if NOT_COHERENT_CACHE
1022 
1023 config PIN_TLB
1024         bool "Pinned Kernel TLBs (860 ONLY)"
1025         depends on ADVANCED_OPTIONS && 8xx
1026 endmenu
1027 
1028 if PPC64
1029 config RELOCATABLE
1030         bool "Build a relocatable kernel"
1031         depends on !COMPILE_TEST
1032         select NONSTATIC_KERNEL
1033         help
1034           This builds a kernel image that is capable of running anywhere
1035           in the RMA (real memory area) at any 16k-aligned base address.
1036           The kernel is linked as a position-independent executable (PIE)
1037           and contains dynamic relocations which are processed early
1038           in the bootup process.
1039 
1040           One use is for the kexec on panic case where the recovery kernel
1041           must live at a different physical address than the primary
1042           kernel.
1043 
1044 # This value must have zeroes in the bottom 60 bits otherwise lots will break
1045 config PAGE_OFFSET
1046         hex
1047         default "0xc000000000000000"
1048 config KERNEL_START
1049         hex
1050         default "0xc000000000000000"
1051 config PHYSICAL_START
1052         hex
1053         default "0x00000000"
1054 endif
1055 
1056 config  ARCH_RANDOM
1057         def_bool n
1058 
1059 source "net/Kconfig"
1060 
1061 source "drivers/Kconfig"
1062 
1063 source "fs/Kconfig"
1064 
1065 source "arch/powerpc/sysdev/qe_lib/Kconfig"
1066 
1067 source "lib/Kconfig"
1068 
1069 source "arch/powerpc/Kconfig.debug"
1070 
1071 source "security/Kconfig"
1072 
1073 config KEYS_COMPAT
1074         bool
1075         depends on COMPAT && KEYS
1076         default y
1077 
1078 source "crypto/Kconfig"
1079 
1080 config PPC_LIB_RHEAP
1081         bool
1082 
1083 source "arch/powerpc/kvm/Kconfig"

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