Version:  2.0.40 2.2.26 2.4.37 3.1 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

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 
151 config GENERIC_CSUM
152         def_bool CPU_LITTLE_ENDIAN
153 
154 config EARLY_PRINTK
155         bool
156         default y
157 
158 config PANIC_TIMEOUT
159         int
160         default 180
161 
162 config COMPAT
163         bool
164         default y if PPC64
165         select COMPAT_BINFMT_ELF
166         select ARCH_WANT_OLD_COMPAT_IPC
167         select COMPAT_OLD_SIGACTION
168 
169 config SYSVIPC_COMPAT
170         bool
171         depends on COMPAT && SYSVIPC
172         default y
173 
174 # All PPC32s use generic nvram driver through ppc_md
175 config GENERIC_NVRAM
176         bool
177         default y if PPC32
178 
179 config SCHED_OMIT_FRAME_POINTER
180         bool
181         default y
182 
183 config ARCH_MAY_HAVE_PC_FDC
184         bool
185         default !PPC_PSERIES || PCI
186 
187 config PPC_OF
188         def_bool y
189 
190 config PPC_UDBG_16550
191         bool
192         default n
193 
194 config GENERIC_TBSYNC
195         bool
196         default y if PPC32 && SMP
197         default n
198 
199 config AUDIT_ARCH
200         bool
201         default y
202 
203 config GENERIC_BUG
204         bool
205         default y
206         depends on BUG
207 
208 config SYS_SUPPORTS_APM_EMULATION
209         default y if PMAC_APM_EMU
210         bool
211 
212 config EPAPR_BOOT
213         bool
214         help
215           Used to allow a board to specify it wants an ePAPR compliant wrapper.
216         default n
217 
218 config DEFAULT_UIMAGE
219         bool
220         help
221           Used to allow a board to specify it wants a uImage built by default
222         default n
223 
224 config ARCH_HIBERNATION_POSSIBLE
225         bool
226         default y
227 
228 config ARCH_SUSPEND_POSSIBLE
229         def_bool y
230         depends on ADB_PMU || PPC_EFIKA || PPC_LITE5200 || PPC_83xx || \
231                    (PPC_85xx && !PPC_E500MC) || PPC_86xx || PPC_PSERIES \
232                    || 44x || 40x
233 
234 config PPC_DCR_NATIVE
235         bool
236         default n
237 
238 config PPC_DCR_MMIO
239         bool
240         default n
241 
242 config PPC_DCR
243         bool
244         depends on PPC_DCR_NATIVE || PPC_DCR_MMIO
245         default y
246 
247 config PPC_OF_PLATFORM_PCI
248         bool
249         depends on PCI
250         depends on PPC64 # not supported on 32 bits yet
251         default n
252 
253 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
254         def_bool y
255 
256 config ARCH_SUPPORTS_UPROBES
257         def_bool y
258 
259 config PPC_ADV_DEBUG_REGS
260         bool
261         depends on 40x || BOOKE
262         default y
263 
264 config PPC_ADV_DEBUG_IACS
265         int
266         depends on PPC_ADV_DEBUG_REGS
267         default 4 if 44x
268         default 2
269 
270 config PPC_ADV_DEBUG_DACS
271         int
272         depends on PPC_ADV_DEBUG_REGS
273         default 2
274 
275 config PPC_ADV_DEBUG_DVCS
276         int
277         depends on PPC_ADV_DEBUG_REGS
278         default 2 if 44x
279         default 0
280 
281 config PPC_ADV_DEBUG_DAC_RANGE
282         bool
283         depends on PPC_ADV_DEBUG_REGS && 44x
284         default y
285 
286 config PPC_EMULATE_SSTEP
287         bool
288         default y if KPROBES || UPROBES || XMON || HAVE_HW_BREAKPOINT
289 
290 source "init/Kconfig"
291 
292 source "kernel/Kconfig.freezer"
293 
294 source "arch/powerpc/sysdev/Kconfig"
295 source "arch/powerpc/platforms/Kconfig"
296 
297 menu "Kernel options"
298 
299 config HIGHMEM
300         bool "High memory support"
301         depends on PPC32
302 
303 source kernel/Kconfig.hz
304 source kernel/Kconfig.preempt
305 source "fs/Kconfig.binfmt"
306 
307 config HUGETLB_PAGE_SIZE_VARIABLE
308         bool
309         depends on HUGETLB_PAGE
310         default y
311 
312 config MATH_EMULATION
313         bool "Math emulation"
314         depends on 4xx || 8xx || PPC_MPC832x || BOOKE
315         ---help---
316           Some PowerPC chips designed for embedded applications do not have
317           a floating-point unit and therefore do not implement the
318           floating-point instructions in the PowerPC instruction set.  If you
319           say Y here, the kernel will include code to emulate a floating-point
320           unit, which will allow programs that use floating-point
321           instructions to run.
322 
323           This is also useful to emulate missing (optional) instructions
324           such as fsqrt on cores that do have an FPU but do not implement
325           them (such as Freescale BookE).
326 
327 choice
328         prompt "Math emulation options"
329         default MATH_EMULATION_FULL
330         depends on MATH_EMULATION
331 
332 config  MATH_EMULATION_FULL
333         bool "Emulate all the floating point instructions"
334         ---help---
335           Select this option will enable the kernel to support to emulate
336           all the floating point instructions. If your SoC doesn't have
337           a FPU, you should select this.
338 
339 config MATH_EMULATION_HW_UNIMPLEMENTED
340         bool "Just emulate the FPU unimplemented instructions"
341         ---help---
342           Select this if you know there does have a hardware FPU on your
343           SoC, but some floating point instructions are not implemented by that.
344 
345 endchoice
346 
347 config PPC_TRANSACTIONAL_MEM
348        bool "Transactional Memory support for POWERPC"
349        depends on PPC_BOOK3S_64
350        depends on SMP
351        select ALTIVEC
352        select VSX
353        default n
354        ---help---
355          Support user-mode Transactional Memory on POWERPC.
356 
357 config IOMMU_HELPER
358         def_bool PPC64
359 
360 config SWIOTLB
361         bool "SWIOTLB support"
362         default n
363         select IOMMU_HELPER
364         ---help---
365           Support for IO bounce buffering for systems without an IOMMU.
366           This allows us to DMA to the full physical address space on
367           platforms where the size of a physical address is larger
368           than the bus address.  Not all platforms support this.
369 
370 config HOTPLUG_CPU
371         bool "Support for enabling/disabling CPUs"
372         depends on SMP && (PPC_PSERIES || \
373         PPC_PMAC || PPC_POWERNV || (PPC_85xx && !PPC_E500MC))
374         ---help---
375           Say Y here to be able to disable and re-enable individual
376           CPUs at runtime on SMP machines.
377 
378           Say N if you are unsure.
379 
380 config ARCH_CPU_PROBE_RELEASE
381         def_bool y
382         depends on HOTPLUG_CPU
383 
384 config ARCH_ENABLE_MEMORY_HOTPLUG
385         def_bool y
386 
387 config ARCH_HAS_WALK_MEMORY
388         def_bool y
389 
390 config ARCH_ENABLE_MEMORY_HOTREMOVE
391         def_bool y
392 
393 config PPC64_SUPPORTS_MEMORY_FAILURE
394         bool "Add support for memory hwpoison"
395         depends on PPC_BOOK3S_64
396         default "y" if PPC_POWERNV
397         select ARCH_SUPPORTS_MEMORY_FAILURE
398 
399 config KEXEC
400         bool "kexec system call"
401         depends on (PPC_BOOK3S || FSL_BOOKE || (44x && !SMP))
402         help
403           kexec is a system call that implements the ability to shutdown your
404           current kernel, and to start another kernel.  It is like a reboot
405           but it is independent of the system firmware.   And like a reboot
406           you can start any kernel with it, not just Linux.
407 
408           The name comes from the similarity to the exec system call.
409 
410           It is an ongoing process to be certain the hardware in a machine
411           is properly shutdown, so do not be surprised if this code does not
412           initially work for you.  As of this writing the exact hardware
413           interface is strongly in flux, so no good recommendation can be
414           made.
415 
416 config CRASH_DUMP
417         bool "Build a kdump crash kernel"
418         depends on PPC64 || 6xx || FSL_BOOKE || (44x && !SMP)
419         select RELOCATABLE if (PPC64 && !COMPILE_TEST) || 44x || FSL_BOOKE
420         help
421           Build a kernel suitable for use as a kdump capture kernel.
422           The same kernel binary can be used as production kernel and dump
423           capture kernel.
424 
425 config FA_DUMP
426         bool "Firmware-assisted dump"
427         depends on PPC64 && PPC_RTAS && CRASH_DUMP && KEXEC
428         help
429           A robust mechanism to get reliable kernel crash dump with
430           assistance from firmware. This approach does not use kexec,
431           instead firmware assists in booting the kdump kernel
432           while preserving memory contents. Firmware-assisted dump
433           is meant to be a kdump replacement offering robustness and
434           speed not possible without system firmware assistance.
435 
436           If unsure, say "N"
437 
438 config IRQ_ALL_CPUS
439         bool "Distribute interrupts on all CPUs by default"
440         depends on SMP
441         help
442           This option gives the kernel permission to distribute IRQs across
443           multiple CPUs.  Saying N here will route all IRQs to the first
444           CPU.  Generally saying Y is safe, although some problems have been
445           reported with SMP Power Macintoshes with this option enabled.
446 
447 config NUMA
448         bool "NUMA support"
449         depends on PPC64
450         default y if SMP && PPC_PSERIES
451 
452 config NODES_SHIFT
453         int
454         default "8" if PPC64
455         default "4"
456         depends on NEED_MULTIPLE_NODES
457 
458 config USE_PERCPU_NUMA_NODE_ID
459         def_bool y
460         depends on NUMA
461 
462 config HAVE_MEMORYLESS_NODES
463         def_bool y
464         depends on NUMA
465 
466 config ARCH_SELECT_MEMORY_MODEL
467         def_bool y
468         depends on PPC64
469 
470 config ARCH_FLATMEM_ENABLE
471         def_bool y
472         depends on (PPC64 && !NUMA) || PPC32
473 
474 config ARCH_SPARSEMEM_ENABLE
475         def_bool y
476         depends on PPC64
477         select SPARSEMEM_VMEMMAP_ENABLE
478 
479 config ARCH_SPARSEMEM_DEFAULT
480         def_bool y
481         depends on (SMP && PPC_PSERIES) || PPC_PS3
482 
483 config SYS_SUPPORTS_HUGETLBFS
484         bool
485 
486 source "mm/Kconfig"
487 
488 config ARCH_MEMORY_PROBE
489         def_bool y
490         depends on MEMORY_HOTPLUG
491 
492 # Some NUMA nodes have memory ranges that span
493 # other nodes.  Even though a pfn is valid and
494 # between a node's start and end pfns, it may not
495 # reside on that node.  See memmap_init_zone()
496 # for details.
497 config NODES_SPAN_OTHER_NODES
498         def_bool y
499         depends on NEED_MULTIPLE_NODES
500 
501 config PPC_HAS_HASH_64K
502         bool
503         depends on PPC64
504         default n
505 
506 config STDBINUTILS
507         bool "Using standard binutils settings"
508         depends on 44x
509         default y
510         help
511           Turning this option off allows you to select 256KB PAGE_SIZE on 44x.
512           Note, that kernel will be able to run only those applications,
513           which had been compiled using binutils later than 2.17.50.0.3 with
514           '-zmax-page-size' set to 256K (the default is 64K). Or, if using
515           the older binutils, you can patch them with a trivial patch, which
516           changes the ELF_MAXPAGESIZE definition from 0x10000 to 0x40000.
517 
518 choice
519         prompt "Page size"
520         default PPC_4K_PAGES
521         help
522           Select the kernel logical page size. Increasing the page size
523           will reduce software overhead at each page boundary, allow
524           hardware prefetch mechanisms to be more effective, and allow
525           larger dma transfers increasing IO efficiency and reducing
526           overhead. However the utilization of memory will increase.
527           For example, each cached file will using a multiple of the
528           page size to hold its contents and the difference between the
529           end of file and the end of page is wasted.
530 
531           Some dedicated systems, such as software raid serving with
532           accelerated calculations, have shown significant increases.
533 
534           If you configure a 64 bit kernel for 64k pages but the
535           processor does not support them, then the kernel will simulate
536           them with 4k pages, loading them on demand, but with the
537           reduced software overhead and larger internal fragmentation.
538           For the 32 bit kernel, a large page option will not be offered
539           unless it is supported by the configured processor.
540 
541           If unsure, choose 4K_PAGES.
542 
543 config PPC_4K_PAGES
544         bool "4k page size"
545 
546 config PPC_16K_PAGES
547         bool "16k page size" if 44x
548 
549 config PPC_64K_PAGES
550         bool "64k page size" if 44x || PPC_STD_MMU_64 || PPC_BOOK3E_64
551         depends on !PPC_FSL_BOOK3E
552         select PPC_HAS_HASH_64K if PPC_STD_MMU_64
553 
554 config PPC_256K_PAGES
555         bool "256k page size" if 44x
556         depends on !STDBINUTILS
557         help
558           Make the page size 256k.
559 
560           As the ELF standard only requires alignment to support page
561           sizes up to 64k, you will need to compile all of your user
562           space applications with a non-standard binutils settings
563           (see the STDBINUTILS description for details).
564 
565           Say N unless you know what you are doing.
566 
567 endchoice
568 
569 config FORCE_MAX_ZONEORDER
570         int "Maximum zone order"
571         range 9 64 if PPC64 && PPC_64K_PAGES
572         default "9" if PPC64 && PPC_64K_PAGES
573         range 13 64 if PPC64 && !PPC_64K_PAGES
574         default "13" if PPC64 && !PPC_64K_PAGES
575         range 9 64 if PPC32 && PPC_16K_PAGES
576         default "9" if PPC32 && PPC_16K_PAGES
577         range 7 64 if PPC32 && PPC_64K_PAGES
578         default "7" if PPC32 && PPC_64K_PAGES
579         range 5 64 if PPC32 && PPC_256K_PAGES
580         default "5" if PPC32 && PPC_256K_PAGES
581         range 11 64
582         default "11"
583         help
584           The kernel memory allocator divides physically contiguous memory
585           blocks into "zones", where each zone is a power of two number of
586           pages.  This option selects the largest power of two that the kernel
587           keeps in the memory allocator.  If you need to allocate very large
588           blocks of physically contiguous memory, then you may need to
589           increase this value.
590 
591           This config option is actually maximum order plus one. For example,
592           a value of 11 means that the largest free memory block is 2^10 pages.
593 
594           The page size is not necessarily 4KB.  For example, on 64-bit
595           systems, 64KB pages can be enabled via CONFIG_PPC_64K_PAGES.  Keep
596           this in mind when choosing a value for this option.
597 
598 config PPC_SUBPAGE_PROT
599         bool "Support setting protections for 4k subpages"
600         depends on PPC_STD_MMU_64 && PPC_64K_PAGES
601         help
602           This option adds support for a system call to allow user programs
603           to set access permissions (read/write, readonly, or no access)
604           on the 4k subpages of each 64k page.
605 
606 config SCHED_SMT
607         bool "SMT (Hyperthreading) scheduler support"
608         depends on PPC64 && SMP
609         help
610           SMT scheduler support improves the CPU scheduler's decision making
611           when dealing with POWER5 cpus at a cost of slightly increased
612           overhead in some places. If unsure say N here.
613 
614 config PPC_DENORMALISATION
615         bool "PowerPC denormalisation exception handling"
616         depends on PPC_BOOK3S_64
617         default "y" if PPC_POWERNV
618         ---help---
619           Add support for handling denormalisation of single precision
620           values.  Useful for bare metal only.  If unsure say Y here.
621 
622 config CMDLINE_BOOL
623         bool "Default bootloader kernel arguments"
624 
625 config CMDLINE
626         string "Initial kernel command string"
627         depends on CMDLINE_BOOL
628         default "console=ttyS0,9600 console=tty0 root=/dev/sda2"
629         help
630           On some platforms, there is currently no way for the boot loader to
631           pass arguments to the kernel. For these platforms, you can supply
632           some command-line options at build time by entering them here.  In
633           most cases you will need to specify the root device here.
634 
635 config CMDLINE_FORCE
636         bool "Always use the default kernel command string"
637         depends on CMDLINE_BOOL
638         help
639           Always use the default kernel command string, even if the boot
640           loader passes other arguments to the kernel.
641           This is useful if you cannot or don't want to change the
642           command-line options your boot loader passes to the kernel.
643 
644 config EXTRA_TARGETS
645         string "Additional default image types"
646         help
647           List additional targets to be built by the bootwrapper here (separated
648           by spaces).  This is useful for targets that depend of device tree
649           files in the .dts directory.
650 
651           Targets in this list will be build as part of the default build
652           target, or when the user does a 'make zImage' or a
653           'make zImage.initrd'.
654 
655           If unsure, leave blank
656 
657 config ARCH_WANTS_FREEZER_CONTROL
658         def_bool y
659         depends on ADB_PMU
660 
661 source kernel/power/Kconfig
662 
663 config SECCOMP
664         bool "Enable seccomp to safely compute untrusted bytecode"
665         depends on PROC_FS
666         default y
667         help
668           This kernel feature is useful for number crunching applications
669           that may need to compute untrusted bytecode during their
670           execution. By using pipes or other transports made available to
671           the process as file descriptors supporting the read/write
672           syscalls, it's possible to isolate those applications in
673           their own address space using seccomp. Once seccomp is
674           enabled via /proc/<pid>/seccomp, it cannot be disabled
675           and the task is only allowed to execute a few safe syscalls
676           defined by each seccomp mode.
677 
678           If unsure, say Y. Only embedded should say N here.
679 
680 endmenu
681 
682 config ISA_DMA_API
683         bool
684         default PCI
685 
686 menu "Bus options"
687 
688 config ISA
689         bool "Support for ISA-bus hardware"
690         depends on PPC_CHRP
691         select PPC_I8259
692         help
693           Find out whether you have ISA slots on your motherboard.  ISA is the
694           name of a bus system, i.e. the way the CPU talks to the other stuff
695           inside your box.  If you have an Apple machine, say N here; if you
696           have an IBM RS/6000 or pSeries machine, say Y.  If you have an
697           embedded board, consult your board documentation.
698 
699 config ZONE_DMA
700         bool
701         default y
702 
703 config NEED_DMA_MAP_STATE
704         def_bool (PPC64 || NOT_COHERENT_CACHE)
705 
706 config NEED_SG_DMA_LENGTH
707         def_bool y
708 
709 config GENERIC_ISA_DMA
710         bool
711         depends on ISA_DMA_API
712         default y
713 
714 config PPC_INDIRECT_PCI
715         bool
716         depends on PCI
717         default y if 40x || 44x
718         default n
719 
720 config EISA
721         bool
722 
723 config SBUS
724         bool
725 
726 config FSL_SOC
727         bool
728 
729 config FSL_PCI
730         bool
731         select PPC_INDIRECT_PCI
732         select PCI_QUIRKS
733 
734 config FSL_PMC
735         bool
736         default y
737         depends on SUSPEND && (PPC_85xx || PPC_86xx)
738         help
739           Freescale MPC85xx/MPC86xx power management controller support
740           (suspend/resume). For MPC83xx see platforms/83xx/suspend.c
741 
742 config PPC4xx_CPM
743         bool
744         default y
745         depends on SUSPEND && (44x || 40x)
746         help
747           PPC4xx Clock Power Management (CPM) support (suspend/resume).
748           It also enables support for two different idle states (idle-wait
749           and idle-doze).
750 
751 config 4xx_SOC
752         bool
753 
754 config FSL_LBC
755         bool "Freescale Local Bus support"
756         depends on FSL_SOC
757         help
758           Enables reporting of errors from the Freescale local bus
759           controller.  Also contains some common code used by
760           drivers for specific local bus peripherals.
761 
762 config FSL_GTM
763         bool
764         depends on PPC_83xx || QUICC_ENGINE || CPM2
765         help
766           Freescale General-purpose Timers support
767 
768 # Yes MCA RS/6000s exist but Linux-PPC does not currently support any
769 config MCA
770         bool
771 
772 # Platforms that what PCI turned unconditionally just do select PCI
773 # in their config node.  Platforms that want to choose at config
774 # time should select PPC_PCI_CHOICE
775 config PPC_PCI_CHOICE
776         bool
777 
778 config PCI
779         bool "PCI support" if PPC_PCI_CHOICE
780         default y if !40x && !CPM2 && !8xx && !PPC_83xx \
781                 && !PPC_85xx && !PPC_86xx && !GAMECUBE_COMMON
782         default PCI_QSPAN if !4xx && !CPM2 && 8xx
783         select GENERIC_PCI_IOMAP
784         help
785           Find out whether your system includes a PCI bus. PCI is the name of
786           a bus system, i.e. the way the CPU talks to the other stuff inside
787           your box.  If you say Y here, the kernel will include drivers and
788           infrastructure code to support PCI bus devices.
789 
790 config PCI_DOMAINS
791         def_bool PCI
792 
793 config PCI_SYSCALL
794         def_bool PCI
795 
796 config PCI_QSPAN
797         bool "QSpan PCI"
798         depends on !4xx && !CPM2 && 8xx
799         select PPC_I8259
800         help
801           Say Y here if you have a system based on a Motorola 8xx-series
802           embedded processor with a QSPAN PCI interface, otherwise say N.
803 
804 config PCI_8260
805         bool
806         depends on PCI && 8260
807         select PPC_INDIRECT_PCI
808         default y
809 
810 source "drivers/pci/pcie/Kconfig"
811 
812 source "drivers/pci/Kconfig"
813 
814 source "drivers/pcmcia/Kconfig"
815 
816 source "drivers/pci/hotplug/Kconfig"
817 
818 config HAS_RAPIDIO
819         bool
820         default n
821 
822 config RAPIDIO
823         tristate "RapidIO support"
824         depends on HAS_RAPIDIO || PCI
825         help
826           If you say Y here, the kernel will include drivers and
827           infrastructure code to support RapidIO interconnect devices.
828 
829 config FSL_RIO
830         bool "Freescale Embedded SRIO Controller support"
831         depends on RAPIDIO = y && HAS_RAPIDIO
832         default "n"
833         ---help---
834           Include support for RapidIO controller on Freescale embedded
835           processors (MPC8548, MPC8641, etc).
836 
837 source "drivers/rapidio/Kconfig"
838 
839 endmenu
840 
841 config NONSTATIC_KERNEL
842         bool
843         default n
844 
845 menu "Advanced setup"
846         depends on PPC32
847 
848 config ADVANCED_OPTIONS
849         bool "Prompt for advanced kernel configuration options"
850         help
851           This option will enable prompting for a variety of advanced kernel
852           configuration options.  These options can cause the kernel to not
853           work if they are set incorrectly, but can be used to optimize certain
854           aspects of kernel memory management.
855 
856           Unless you know what you are doing, say N here.
857 
858 comment "Default settings for advanced configuration options are used"
859         depends on !ADVANCED_OPTIONS
860 
861 config LOWMEM_SIZE_BOOL
862         bool "Set maximum low memory"
863         depends on ADVANCED_OPTIONS
864         help
865           This option allows you to set the maximum amount of memory which
866           will be used as "low memory", that is, memory which the kernel can
867           access directly, without having to set up a kernel virtual mapping.
868           This can be useful in optimizing the layout of kernel virtual
869           memory.
870 
871           Say N here unless you know what you are doing.
872 
873 config LOWMEM_SIZE
874         hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
875         default "0x30000000"
876 
877 config LOWMEM_CAM_NUM_BOOL
878         bool "Set number of CAMs to use to map low memory"
879         depends on ADVANCED_OPTIONS && FSL_BOOKE
880         help
881           This option allows you to set the maximum number of CAM slots that
882           will be used to map low memory.  There are a limited number of slots
883           available and even more limited number that will fit in the L1 MMU.
884           However, using more entries will allow mapping more low memory.  This
885           can be useful in optimizing the layout of kernel virtual memory.
886 
887           Say N here unless you know what you are doing.
888 
889 config LOWMEM_CAM_NUM
890         depends on FSL_BOOKE
891         int "Number of CAMs to use to map low memory" if LOWMEM_CAM_NUM_BOOL
892         default 3
893 
894 config DYNAMIC_MEMSTART
895         bool "Enable page aligned dynamic load address for kernel"
896         depends on ADVANCED_OPTIONS && FLATMEM && (FSL_BOOKE || 44x)
897         select NONSTATIC_KERNEL
898         help
899           This option enables the kernel to be loaded at any page aligned
900           physical address. The kernel creates a mapping from KERNELBASE to 
901           the address where the kernel is loaded. The page size here implies
902           the TLB page size of the mapping for kernel on the particular platform.
903           Please refer to the init code for finding the TLB page size.
904 
905           DYNAMIC_MEMSTART is an easy way of implementing pseudo-RELOCATABLE
906           kernel image, where the only restriction is the page aligned kernel
907           load address. When this option is enabled, the compile time physical 
908           address CONFIG_PHYSICAL_START is ignored.
909 
910           This option is overridden by CONFIG_RELOCATABLE
911 
912 config RELOCATABLE
913         bool "Build a relocatable kernel"
914         depends on ADVANCED_OPTIONS && FLATMEM && (44x || FSL_BOOKE)
915         select NONSTATIC_KERNEL
916         help
917           This builds a kernel image that is capable of running at the
918           location the kernel is loaded at, without any alignment restrictions.
919           This feature is a superset of DYNAMIC_MEMSTART and hence overrides it.
920 
921           One use is for the kexec on panic case where the recovery kernel
922           must live at a different physical address than the primary
923           kernel.
924 
925           Note: If CONFIG_RELOCATABLE=y, then the kernel runs from the address
926           it has been loaded at and the compile time physical addresses
927           CONFIG_PHYSICAL_START is ignored.  However CONFIG_PHYSICAL_START
928           setting can still be useful to bootwrappers that need to know the
929           load address of the kernel (eg. u-boot/mkimage).
930 
931 config RELOCATABLE_PPC32
932         def_bool y
933         depends on PPC32 && RELOCATABLE
934 
935 config PAGE_OFFSET_BOOL
936         bool "Set custom page offset address"
937         depends on ADVANCED_OPTIONS
938         help
939           This option allows you to set the kernel virtual address at which
940           the kernel will map low memory.  This can be useful in optimizing
941           the virtual memory layout of the system.
942 
943           Say N here unless you know what you are doing.
944 
945 config PAGE_OFFSET
946         hex "Virtual address of memory base" if PAGE_OFFSET_BOOL
947         default "0xc0000000"
948 
949 config KERNEL_START_BOOL
950         bool "Set custom kernel base address"
951         depends on ADVANCED_OPTIONS
952         help
953           This option allows you to set the kernel virtual address at which
954           the kernel will be loaded.  Normally this should match PAGE_OFFSET
955           however there are times (like kdump) that one might not want them
956           to be the same.
957 
958           Say N here unless you know what you are doing.
959 
960 config KERNEL_START
961         hex "Virtual address of kernel base" if KERNEL_START_BOOL
962         default PAGE_OFFSET if PAGE_OFFSET_BOOL
963         default "0xc2000000" if CRASH_DUMP && !NONSTATIC_KERNEL
964         default "0xc0000000"
965 
966 config PHYSICAL_START_BOOL
967         bool "Set physical address where the kernel is loaded"
968         depends on ADVANCED_OPTIONS && FLATMEM && FSL_BOOKE
969         help
970           This gives the physical address where the kernel is loaded.
971 
972           Say N here unless you know what you are doing.
973 
974 config PHYSICAL_START
975         hex "Physical address where the kernel is loaded" if PHYSICAL_START_BOOL
976         default "0x02000000" if PPC_STD_MMU && CRASH_DUMP && !NONSTATIC_KERNEL
977         default "0x00000000"
978 
979 config PHYSICAL_ALIGN
980         hex
981         default "0x04000000" if FSL_BOOKE
982         help
983           This value puts the alignment restrictions on physical address
984           where kernel is loaded and run from. Kernel is compiled for an
985           address which meets above alignment restriction.
986 
987 config TASK_SIZE_BOOL
988         bool "Set custom user task size"
989         depends on ADVANCED_OPTIONS
990         help
991           This option allows you to set the amount of virtual address space
992           allocated to user tasks.  This can be useful in optimizing the
993           virtual memory layout of the system.
994 
995           Say N here unless you know what you are doing.
996 
997 config TASK_SIZE
998         hex "Size of user task space" if TASK_SIZE_BOOL
999         default "0x80000000" if PPC_8xx
1000         default "0xc0000000"
1001 
1002 config CONSISTENT_SIZE_BOOL
1003         bool "Set custom consistent memory pool size"
1004         depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
1005         help
1006           This option allows you to set the size of the
1007           consistent memory pool.  This pool of virtual memory
1008           is used to make consistent memory allocations.
1009 
1010 config CONSISTENT_SIZE
1011         hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL
1012         default "0x00200000" if NOT_COHERENT_CACHE
1013 
1014 config PIN_TLB
1015         bool "Pinned Kernel TLBs (860 ONLY)"
1016         depends on ADVANCED_OPTIONS && 8xx
1017 endmenu
1018 
1019 if PPC64
1020 config RELOCATABLE
1021         bool "Build a relocatable kernel"
1022         depends on !COMPILE_TEST
1023         select NONSTATIC_KERNEL
1024         help
1025           This builds a kernel image that is capable of running anywhere
1026           in the RMA (real memory area) at any 16k-aligned base address.
1027           The kernel is linked as a position-independent executable (PIE)
1028           and contains dynamic relocations which are processed early
1029           in the bootup process.
1030 
1031           One use is for the kexec on panic case where the recovery kernel
1032           must live at a different physical address than the primary
1033           kernel.
1034 
1035 # This value must have zeroes in the bottom 60 bits otherwise lots will break
1036 config PAGE_OFFSET
1037         hex
1038         default "0xc000000000000000"
1039 config KERNEL_START
1040         hex
1041         default "0xc000000000000000"
1042 config PHYSICAL_START
1043         hex
1044         default "0x00000000"
1045 endif
1046 
1047 config  ARCH_RANDOM
1048         def_bool n
1049 
1050 source "net/Kconfig"
1051 
1052 source "drivers/Kconfig"
1053 
1054 source "fs/Kconfig"
1055 
1056 source "arch/powerpc/sysdev/qe_lib/Kconfig"
1057 
1058 source "lib/Kconfig"
1059 
1060 source "arch/powerpc/Kconfig.debug"
1061 
1062 source "security/Kconfig"
1063 
1064 config KEYS_COMPAT
1065         bool
1066         depends on COMPAT && KEYS
1067         default y
1068 
1069 source "crypto/Kconfig"
1070 
1071 config PPC_LIB_RHEAP
1072         bool
1073 
1074 source "arch/powerpc/kvm/Kconfig"

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