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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 ARCH_BINFMT_ELF_RANDOMIZE_PIE
 92         select OF
 93         select OF_EARLY_FLATTREE
 94         select OF_RESERVED_MEM
 95         select HAVE_FTRACE_MCOUNT_RECORD
 96         select HAVE_DYNAMIC_FTRACE
 97         select HAVE_FUNCTION_TRACER
 98         select HAVE_FUNCTION_GRAPH_TRACER
 99         select SYSCTL_EXCEPTION_TRACE
100         select ARCH_WANT_OPTIONAL_GPIOLIB
101         select VIRT_TO_BUS if !PPC64
102         select HAVE_IDE
103         select HAVE_IOREMAP_PROT
104         select HAVE_EFFICIENT_UNALIGNED_ACCESS if !CPU_LITTLE_ENDIAN
105         select HAVE_KPROBES
106         select HAVE_ARCH_KGDB
107         select HAVE_KRETPROBES
108         select HAVE_ARCH_TRACEHOOK
109         select HAVE_MEMBLOCK
110         select HAVE_MEMBLOCK_NODE_MAP
111         select HAVE_DMA_ATTRS
112         select HAVE_DMA_API_DEBUG
113         select HAVE_OPROFILE
114         select HAVE_DEBUG_KMEMLEAK
115         select ARCH_HAS_SG_CHAIN
116         select GENERIC_ATOMIC64 if PPC32
117         select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
118         select HAVE_PERF_EVENTS
119         select HAVE_REGS_AND_STACK_ACCESS_API
120         select HAVE_HW_BREAKPOINT if PERF_EVENTS && PPC_BOOK3S_64
121         select ARCH_WANT_IPC_PARSE_VERSION
122         select SPARSE_IRQ
123         select IRQ_DOMAIN
124         select GENERIC_IRQ_SHOW
125         select GENERIC_IRQ_SHOW_LEVEL
126         select IRQ_FORCED_THREADING
127         select HAVE_RCU_TABLE_FREE if SMP
128         select HAVE_SYSCALL_TRACEPOINTS
129         select HAVE_BPF_JIT if PPC64
130         select HAVE_ARCH_JUMP_LABEL
131         select ARCH_HAVE_NMI_SAFE_CMPXCHG
132         select ARCH_HAS_GCOV_PROFILE_ALL
133         select GENERIC_SMP_IDLE_THREAD
134         select GENERIC_CMOS_UPDATE
135         select GENERIC_TIME_VSYSCALL_OLD
136         select GENERIC_CLOCKEVENTS
137         select GENERIC_CLOCKEVENTS_BROADCAST if SMP
138         select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
139         select GENERIC_STRNCPY_FROM_USER
140         select GENERIC_STRNLEN_USER
141         select HAVE_MOD_ARCH_SPECIFIC
142         select MODULES_USE_ELF_RELA
143         select CLONE_BACKWARDS
144         select ARCH_USE_BUILTIN_BSWAP
145         select OLD_SIGSUSPEND
146         select OLD_SIGACTION if PPC32
147         select HAVE_DEBUG_STACKOVERFLOW
148         select HAVE_IRQ_EXIT_ON_IRQ_STACK
149         select ARCH_USE_CMPXCHG_LOCKREF if PPC64
150         select HAVE_ARCH_AUDITSYSCALL
151         select ARCH_SUPPORTS_ATOMIC_RMW
152         select DCACHE_WORD_ACCESS if PPC64 && CPU_LITTLE_ENDIAN
153         select NO_BOOTMEM
154         select HAVE_GENERIC_RCU_GUP
155 
156 config GENERIC_CSUM
157         def_bool CPU_LITTLE_ENDIAN
158 
159 config EARLY_PRINTK
160         bool
161         default y
162 
163 config PANIC_TIMEOUT
164         int
165         default 180
166 
167 config COMPAT
168         bool
169         default y if PPC64
170         select COMPAT_BINFMT_ELF
171         select ARCH_WANT_OLD_COMPAT_IPC
172         select COMPAT_OLD_SIGACTION
173 
174 config SYSVIPC_COMPAT
175         bool
176         depends on COMPAT && SYSVIPC
177         default y
178 
179 # All PPC32s use generic nvram driver through ppc_md
180 config GENERIC_NVRAM
181         bool
182         default y if PPC32
183 
184 config SCHED_OMIT_FRAME_POINTER
185         bool
186         default y
187 
188 config ARCH_MAY_HAVE_PC_FDC
189         bool
190         default PCI
191 
192 config PPC_OF
193         def_bool y
194 
195 config PPC_UDBG_16550
196         bool
197         default n
198 
199 config GENERIC_TBSYNC
200         bool
201         default y if PPC32 && SMP
202         default n
203 
204 config AUDIT_ARCH
205         bool
206         default y
207 
208 config GENERIC_BUG
209         bool
210         default y
211         depends on BUG
212 
213 config SYS_SUPPORTS_APM_EMULATION
214         default y if PMAC_APM_EMU
215         bool
216 
217 config EPAPR_BOOT
218         bool
219         help
220           Used to allow a board to specify it wants an ePAPR compliant wrapper.
221         default n
222 
223 config DEFAULT_UIMAGE
224         bool
225         help
226           Used to allow a board to specify it wants a uImage built by default
227         default n
228 
229 config ARCH_HIBERNATION_POSSIBLE
230         bool
231         default y
232 
233 config ARCH_SUSPEND_POSSIBLE
234         def_bool y
235         depends on ADB_PMU || PPC_EFIKA || PPC_LITE5200 || PPC_83xx || \
236                    (PPC_85xx && !PPC_E500MC) || PPC_86xx || PPC_PSERIES \
237                    || 44x || 40x
238 
239 config PPC_DCR_NATIVE
240         bool
241         default n
242 
243 config PPC_DCR_MMIO
244         bool
245         default n
246 
247 config PPC_DCR
248         bool
249         depends on PPC_DCR_NATIVE || PPC_DCR_MMIO
250         default y
251 
252 config PPC_OF_PLATFORM_PCI
253         bool
254         depends on PCI
255         depends on PPC64 # not supported on 32 bits yet
256         default n
257 
258 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
259         def_bool y
260 
261 config ARCH_SUPPORTS_UPROBES
262         def_bool y
263 
264 config PPC_ADV_DEBUG_REGS
265         bool
266         depends on 40x || BOOKE
267         default y
268 
269 config PPC_ADV_DEBUG_IACS
270         int
271         depends on PPC_ADV_DEBUG_REGS
272         default 4 if 44x
273         default 2
274 
275 config PPC_ADV_DEBUG_DACS
276         int
277         depends on PPC_ADV_DEBUG_REGS
278         default 2
279 
280 config PPC_ADV_DEBUG_DVCS
281         int
282         depends on PPC_ADV_DEBUG_REGS
283         default 2 if 44x
284         default 0
285 
286 config PPC_ADV_DEBUG_DAC_RANGE
287         bool
288         depends on PPC_ADV_DEBUG_REGS && 44x
289         default y
290 
291 config PPC_EMULATE_SSTEP
292         bool
293         default y if KPROBES || UPROBES || XMON || HAVE_HW_BREAKPOINT
294 
295 config ZONE_DMA32
296         bool
297         default y if PPC64
298 
299 source "init/Kconfig"
300 
301 source "kernel/Kconfig.freezer"
302 
303 source "arch/powerpc/sysdev/Kconfig"
304 source "arch/powerpc/platforms/Kconfig"
305 
306 menu "Kernel options"
307 
308 config HIGHMEM
309         bool "High memory support"
310         depends on PPC32
311 
312 source kernel/Kconfig.hz
313 source kernel/Kconfig.preempt
314 source "fs/Kconfig.binfmt"
315 
316 config HUGETLB_PAGE_SIZE_VARIABLE
317         bool
318         depends on HUGETLB_PAGE
319         default y
320 
321 config MATH_EMULATION
322         bool "Math emulation"
323         depends on 4xx || 8xx || PPC_MPC832x || BOOKE
324         ---help---
325           Some PowerPC chips designed for embedded applications do not have
326           a floating-point unit and therefore do not implement the
327           floating-point instructions in the PowerPC instruction set.  If you
328           say Y here, the kernel will include code to emulate a floating-point
329           unit, which will allow programs that use floating-point
330           instructions to run.
331 
332           This is also useful to emulate missing (optional) instructions
333           such as fsqrt on cores that do have an FPU but do not implement
334           them (such as Freescale BookE).
335 
336 choice
337         prompt "Math emulation options"
338         default MATH_EMULATION_FULL
339         depends on MATH_EMULATION
340 
341 config  MATH_EMULATION_FULL
342         bool "Emulate all the floating point instructions"
343         ---help---
344           Select this option will enable the kernel to support to emulate
345           all the floating point instructions. If your SoC doesn't have
346           a FPU, you should select this.
347 
348 config MATH_EMULATION_HW_UNIMPLEMENTED
349         bool "Just emulate the FPU unimplemented instructions"
350         ---help---
351           Select this if you know there does have a hardware FPU on your
352           SoC, but some floating point instructions are not implemented by that.
353 
354 endchoice
355 
356 config PPC_TRANSACTIONAL_MEM
357        bool "Transactional Memory support for POWERPC"
358        depends on PPC_BOOK3S_64
359        depends on SMP
360        select ALTIVEC
361        select VSX
362        default n
363        ---help---
364          Support user-mode Transactional Memory on POWERPC.
365 
366 config IOMMU_HELPER
367         def_bool PPC64
368 
369 config SWIOTLB
370         bool "SWIOTLB support"
371         default n
372         select IOMMU_HELPER
373         ---help---
374           Support for IO bounce buffering for systems without an IOMMU.
375           This allows us to DMA to the full physical address space on
376           platforms where the size of a physical address is larger
377           than the bus address.  Not all platforms support this.
378 
379 config HOTPLUG_CPU
380         bool "Support for enabling/disabling CPUs"
381         depends on SMP && (PPC_PSERIES || \
382         PPC_PMAC || PPC_POWERNV || (PPC_85xx && !PPC_E500MC))
383         ---help---
384           Say Y here to be able to disable and re-enable individual
385           CPUs at runtime on SMP machines.
386 
387           Say N if you are unsure.
388 
389 config ARCH_CPU_PROBE_RELEASE
390         def_bool y
391         depends on HOTPLUG_CPU
392 
393 config ARCH_ENABLE_MEMORY_HOTPLUG
394         def_bool y
395 
396 config ARCH_HAS_WALK_MEMORY
397         def_bool y
398 
399 config ARCH_ENABLE_MEMORY_HOTREMOVE
400         def_bool y
401 
402 config PPC64_SUPPORTS_MEMORY_FAILURE
403         bool "Add support for memory hwpoison"
404         depends on PPC_BOOK3S_64
405         default "y" if PPC_POWERNV
406         select ARCH_SUPPORTS_MEMORY_FAILURE
407 
408 config KEXEC
409         bool "kexec system call"
410         depends on (PPC_BOOK3S || FSL_BOOKE || (44x && !SMP))
411         help
412           kexec is a system call that implements the ability to shutdown your
413           current kernel, and to start another kernel.  It is like a reboot
414           but it is independent of the system firmware.   And like a reboot
415           you can start any kernel with it, not just Linux.
416 
417           The name comes from the similarity to the exec system call.
418 
419           It is an ongoing process to be certain the hardware in a machine
420           is properly shutdown, so do not be surprised if this code does not
421           initially work for you.  As of this writing the exact hardware
422           interface is strongly in flux, so no good recommendation can be
423           made.
424 
425 config CRASH_DUMP
426         bool "Build a kdump crash kernel"
427         depends on PPC64 || 6xx || FSL_BOOKE || (44x && !SMP)
428         select RELOCATABLE if (PPC64 && !COMPILE_TEST) || 44x || FSL_BOOKE
429         help
430           Build a kernel suitable for use as a kdump capture kernel.
431           The same kernel binary can be used as production kernel and dump
432           capture kernel.
433 
434 config FA_DUMP
435         bool "Firmware-assisted dump"
436         depends on PPC64 && PPC_RTAS && CRASH_DUMP && KEXEC
437         help
438           A robust mechanism to get reliable kernel crash dump with
439           assistance from firmware. This approach does not use kexec,
440           instead firmware assists in booting the kdump kernel
441           while preserving memory contents. Firmware-assisted dump
442           is meant to be a kdump replacement offering robustness and
443           speed not possible without system firmware assistance.
444 
445           If unsure, say "N"
446 
447 config IRQ_ALL_CPUS
448         bool "Distribute interrupts on all CPUs by default"
449         depends on SMP
450         help
451           This option gives the kernel permission to distribute IRQs across
452           multiple CPUs.  Saying N here will route all IRQs to the first
453           CPU.  Generally saying Y is safe, although some problems have been
454           reported with SMP Power Macintoshes with this option enabled.
455 
456 config NUMA
457         bool "NUMA support"
458         depends on PPC64
459         default y if SMP && PPC_PSERIES
460 
461 config NODES_SHIFT
462         int
463         default "8" if PPC64
464         default "4"
465         depends on NEED_MULTIPLE_NODES
466 
467 config USE_PERCPU_NUMA_NODE_ID
468         def_bool y
469         depends on NUMA
470 
471 config HAVE_MEMORYLESS_NODES
472         def_bool y
473         depends on NUMA
474 
475 config ARCH_SELECT_MEMORY_MODEL
476         def_bool y
477         depends on PPC64
478 
479 config ARCH_FLATMEM_ENABLE
480         def_bool y
481         depends on (PPC64 && !NUMA) || PPC32
482 
483 config ARCH_SPARSEMEM_ENABLE
484         def_bool y
485         depends on PPC64
486         select SPARSEMEM_VMEMMAP_ENABLE
487 
488 config ARCH_SPARSEMEM_DEFAULT
489         def_bool y
490         depends on (SMP && PPC_PSERIES) || PPC_PS3
491 
492 config SYS_SUPPORTS_HUGETLBFS
493         bool
494 
495 source "mm/Kconfig"
496 
497 config ARCH_MEMORY_PROBE
498         def_bool y
499         depends on MEMORY_HOTPLUG
500 
501 # Some NUMA nodes have memory ranges that span
502 # other nodes.  Even though a pfn is valid and
503 # between a node's start and end pfns, it may not
504 # reside on that node.  See memmap_init_zone()
505 # for details.
506 config NODES_SPAN_OTHER_NODES
507         def_bool y
508         depends on NEED_MULTIPLE_NODES
509 
510 config PPC_HAS_HASH_64K
511         bool
512         depends on PPC64
513         default n
514 
515 config STDBINUTILS
516         bool "Using standard binutils settings"
517         depends on 44x
518         default y
519         help
520           Turning this option off allows you to select 256KB PAGE_SIZE on 44x.
521           Note, that kernel will be able to run only those applications,
522           which had been compiled using binutils later than 2.17.50.0.3 with
523           '-zmax-page-size' set to 256K (the default is 64K). Or, if using
524           the older binutils, you can patch them with a trivial patch, which
525           changes the ELF_MAXPAGESIZE definition from 0x10000 to 0x40000.
526 
527 choice
528         prompt "Page size"
529         default PPC_4K_PAGES
530         help
531           Select the kernel logical page size. Increasing the page size
532           will reduce software overhead at each page boundary, allow
533           hardware prefetch mechanisms to be more effective, and allow
534           larger dma transfers increasing IO efficiency and reducing
535           overhead. However the utilization of memory will increase.
536           For example, each cached file will using a multiple of the
537           page size to hold its contents and the difference between the
538           end of file and the end of page is wasted.
539 
540           Some dedicated systems, such as software raid serving with
541           accelerated calculations, have shown significant increases.
542 
543           If you configure a 64 bit kernel for 64k pages but the
544           processor does not support them, then the kernel will simulate
545           them with 4k pages, loading them on demand, but with the
546           reduced software overhead and larger internal fragmentation.
547           For the 32 bit kernel, a large page option will not be offered
548           unless it is supported by the configured processor.
549 
550           If unsure, choose 4K_PAGES.
551 
552 config PPC_4K_PAGES
553         bool "4k page size"
554 
555 config PPC_16K_PAGES
556         bool "16k page size" if 44x || PPC_8xx
557 
558 config PPC_64K_PAGES
559         bool "64k page size" if 44x || PPC_STD_MMU_64 || PPC_BOOK3E_64
560         depends on !PPC_FSL_BOOK3E
561         select PPC_HAS_HASH_64K if PPC_STD_MMU_64
562 
563 config PPC_256K_PAGES
564         bool "256k page size" if 44x
565         depends on !STDBINUTILS
566         help
567           Make the page size 256k.
568 
569           As the ELF standard only requires alignment to support page
570           sizes up to 64k, you will need to compile all of your user
571           space applications with a non-standard binutils settings
572           (see the STDBINUTILS description for details).
573 
574           Say N unless you know what you are doing.
575 
576 endchoice
577 
578 config FORCE_MAX_ZONEORDER
579         int "Maximum zone order"
580         range 9 64 if PPC64 && PPC_64K_PAGES
581         default "9" if PPC64 && PPC_64K_PAGES
582         range 13 64 if PPC64 && !PPC_64K_PAGES
583         default "13" if PPC64 && !PPC_64K_PAGES
584         range 9 64 if PPC32 && PPC_16K_PAGES
585         default "9" if PPC32 && PPC_16K_PAGES
586         range 7 64 if PPC32 && PPC_64K_PAGES
587         default "7" if PPC32 && PPC_64K_PAGES
588         range 5 64 if PPC32 && PPC_256K_PAGES
589         default "5" if PPC32 && PPC_256K_PAGES
590         range 11 64
591         default "11"
592         help
593           The kernel memory allocator divides physically contiguous memory
594           blocks into "zones", where each zone is a power of two number of
595           pages.  This option selects the largest power of two that the kernel
596           keeps in the memory allocator.  If you need to allocate very large
597           blocks of physically contiguous memory, then you may need to
598           increase this value.
599 
600           This config option is actually maximum order plus one. For example,
601           a value of 11 means that the largest free memory block is 2^10 pages.
602 
603           The page size is not necessarily 4KB.  For example, on 64-bit
604           systems, 64KB pages can be enabled via CONFIG_PPC_64K_PAGES.  Keep
605           this in mind when choosing a value for this option.
606 
607 config PPC_SUBPAGE_PROT
608         bool "Support setting protections for 4k subpages"
609         depends on PPC_STD_MMU_64 && PPC_64K_PAGES
610         help
611           This option adds support for a system call to allow user programs
612           to set access permissions (read/write, readonly, or no access)
613           on the 4k subpages of each 64k page.
614 
615 config PPC_COPRO_BASE
616         bool
617         default n
618 
619 config SCHED_SMT
620         bool "SMT (Hyperthreading) scheduler support"
621         depends on PPC64 && SMP
622         help
623           SMT scheduler support improves the CPU scheduler's decision making
624           when dealing with POWER5 cpus at a cost of slightly increased
625           overhead in some places. If unsure say N here.
626 
627 config PPC_DENORMALISATION
628         bool "PowerPC denormalisation exception handling"
629         depends on PPC_BOOK3S_64
630         default "y" if PPC_POWERNV
631         ---help---
632           Add support for handling denormalisation of single precision
633           values.  Useful for bare metal only.  If unsure say Y here.
634 
635 config CMDLINE_BOOL
636         bool "Default bootloader kernel arguments"
637 
638 config CMDLINE
639         string "Initial kernel command string"
640         depends on CMDLINE_BOOL
641         default "console=ttyS0,9600 console=tty0 root=/dev/sda2"
642         help
643           On some platforms, there is currently no way for the boot loader to
644           pass arguments to the kernel. For these platforms, you can supply
645           some command-line options at build time by entering them here.  In
646           most cases you will need to specify the root device here.
647 
648 config CMDLINE_FORCE
649         bool "Always use the default kernel command string"
650         depends on CMDLINE_BOOL
651         help
652           Always use the default kernel command string, even if the boot
653           loader passes other arguments to the kernel.
654           This is useful if you cannot or don't want to change the
655           command-line options your boot loader passes to the kernel.
656 
657 config EXTRA_TARGETS
658         string "Additional default image types"
659         help
660           List additional targets to be built by the bootwrapper here (separated
661           by spaces).  This is useful for targets that depend of device tree
662           files in the .dts directory.
663 
664           Targets in this list will be build as part of the default build
665           target, or when the user does a 'make zImage' or a
666           'make zImage.initrd'.
667 
668           If unsure, leave blank
669 
670 config ARCH_WANTS_FREEZER_CONTROL
671         def_bool y
672         depends on ADB_PMU
673 
674 source kernel/power/Kconfig
675 
676 config SECCOMP
677         bool "Enable seccomp to safely compute untrusted bytecode"
678         depends on PROC_FS
679         default y
680         help
681           This kernel feature is useful for number crunching applications
682           that may need to compute untrusted bytecode during their
683           execution. By using pipes or other transports made available to
684           the process as file descriptors supporting the read/write
685           syscalls, it's possible to isolate those applications in
686           their own address space using seccomp. Once seccomp is
687           enabled via /proc/<pid>/seccomp, it cannot be disabled
688           and the task is only allowed to execute a few safe syscalls
689           defined by each seccomp mode.
690 
691           If unsure, say Y. Only embedded should say N here.
692 
693 endmenu
694 
695 config ISA_DMA_API
696         bool
697         default PCI
698 
699 menu "Bus options"
700 
701 config ISA
702         bool "Support for ISA-bus hardware"
703         depends on PPC_CHRP
704         select PPC_I8259
705         help
706           Find out whether you have ISA slots on your motherboard.  ISA is the
707           name of a bus system, i.e. the way the CPU talks to the other stuff
708           inside your box.  If you have an Apple machine, say N here; if you
709           have an IBM RS/6000 or pSeries machine, say Y.  If you have an
710           embedded board, consult your board documentation.
711 
712 config ZONE_DMA
713         bool
714         default y
715 
716 config NEED_DMA_MAP_STATE
717         def_bool (PPC64 || NOT_COHERENT_CACHE)
718 
719 config NEED_SG_DMA_LENGTH
720         def_bool y
721 
722 config GENERIC_ISA_DMA
723         bool
724         depends on ISA_DMA_API
725         default y
726 
727 config PPC_INDIRECT_PCI
728         bool
729         depends on PCI
730         default y if 40x || 44x
731         default n
732 
733 config EISA
734         bool
735 
736 config SBUS
737         bool
738 
739 config FSL_SOC
740         bool
741 
742 config FSL_PCI
743         bool
744         select PPC_INDIRECT_PCI
745         select PCI_QUIRKS
746 
747 config FSL_PMC
748         bool
749         default y
750         depends on SUSPEND && (PPC_85xx || PPC_86xx)
751         help
752           Freescale MPC85xx/MPC86xx power management controller support
753           (suspend/resume). For MPC83xx see platforms/83xx/suspend.c
754 
755 config PPC4xx_CPM
756         bool
757         default y
758         depends on SUSPEND && (44x || 40x)
759         help
760           PPC4xx Clock Power Management (CPM) support (suspend/resume).
761           It also enables support for two different idle states (idle-wait
762           and idle-doze).
763 
764 config 4xx_SOC
765         bool
766 
767 config FSL_LBC
768         bool "Freescale Local Bus support"
769         depends on FSL_SOC
770         help
771           Enables reporting of errors from the Freescale local bus
772           controller.  Also contains some common code used by
773           drivers for specific local bus peripherals.
774 
775 config FSL_GTM
776         bool
777         depends on PPC_83xx || QUICC_ENGINE || CPM2
778         help
779           Freescale General-purpose Timers support
780 
781 # Yes MCA RS/6000s exist but Linux-PPC does not currently support any
782 config MCA
783         bool
784 
785 # Platforms that what PCI turned unconditionally just do select PCI
786 # in their config node.  Platforms that want to choose at config
787 # time should select PPC_PCI_CHOICE
788 config PPC_PCI_CHOICE
789         bool
790 
791 config PCI
792         bool "PCI support" if PPC_PCI_CHOICE
793         default y if !40x && !CPM2 && !8xx && !PPC_83xx \
794                 && !PPC_85xx && !PPC_86xx && !GAMECUBE_COMMON
795         default PCI_QSPAN if !4xx && !CPM2 && 8xx
796         select GENERIC_PCI_IOMAP
797         help
798           Find out whether your system includes a PCI bus. PCI is the name of
799           a bus system, i.e. the way the CPU talks to the other stuff inside
800           your box.  If you say Y here, the kernel will include drivers and
801           infrastructure code to support PCI bus devices.
802 
803 config PCI_DOMAINS
804         def_bool PCI
805 
806 config PCI_SYSCALL
807         def_bool PCI
808 
809 config PCI_QSPAN
810         bool "QSpan PCI"
811         depends on !4xx && !CPM2 && 8xx
812         select PPC_I8259
813         help
814           Say Y here if you have a system based on a Motorola 8xx-series
815           embedded processor with a QSPAN PCI interface, otherwise say N.
816 
817 config PCI_8260
818         bool
819         depends on PCI && 8260
820         select PPC_INDIRECT_PCI
821         default y
822 
823 source "drivers/pci/pcie/Kconfig"
824 
825 source "drivers/pci/Kconfig"
826 
827 source "drivers/pcmcia/Kconfig"
828 
829 source "drivers/pci/hotplug/Kconfig"
830 
831 config HAS_RAPIDIO
832         bool
833         default n
834 
835 config RAPIDIO
836         tristate "RapidIO support"
837         depends on HAS_RAPIDIO || PCI
838         help
839           If you say Y here, the kernel will include drivers and
840           infrastructure code to support RapidIO interconnect devices.
841 
842 config FSL_RIO
843         bool "Freescale Embedded SRIO Controller support"
844         depends on RAPIDIO = y && HAS_RAPIDIO
845         default "n"
846         ---help---
847           Include support for RapidIO controller on Freescale embedded
848           processors (MPC8548, MPC8641, etc).
849 
850 source "drivers/rapidio/Kconfig"
851 
852 endmenu
853 
854 config NONSTATIC_KERNEL
855         bool
856         default n
857 
858 menu "Advanced setup"
859         depends on PPC32
860 
861 config ADVANCED_OPTIONS
862         bool "Prompt for advanced kernel configuration options"
863         help
864           This option will enable prompting for a variety of advanced kernel
865           configuration options.  These options can cause the kernel to not
866           work if they are set incorrectly, but can be used to optimize certain
867           aspects of kernel memory management.
868 
869           Unless you know what you are doing, say N here.
870 
871 comment "Default settings for advanced configuration options are used"
872         depends on !ADVANCED_OPTIONS
873 
874 config LOWMEM_SIZE_BOOL
875         bool "Set maximum low memory"
876         depends on ADVANCED_OPTIONS
877         help
878           This option allows you to set the maximum amount of memory which
879           will be used as "low memory", that is, memory which the kernel can
880           access directly, without having to set up a kernel virtual mapping.
881           This can be useful in optimizing the layout of kernel virtual
882           memory.
883 
884           Say N here unless you know what you are doing.
885 
886 config LOWMEM_SIZE
887         hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
888         default "0x30000000"
889 
890 config LOWMEM_CAM_NUM_BOOL
891         bool "Set number of CAMs to use to map low memory"
892         depends on ADVANCED_OPTIONS && FSL_BOOKE
893         help
894           This option allows you to set the maximum number of CAM slots that
895           will be used to map low memory.  There are a limited number of slots
896           available and even more limited number that will fit in the L1 MMU.
897           However, using more entries will allow mapping more low memory.  This
898           can be useful in optimizing the layout of kernel virtual memory.
899 
900           Say N here unless you know what you are doing.
901 
902 config LOWMEM_CAM_NUM
903         depends on FSL_BOOKE
904         int "Number of CAMs to use to map low memory" if LOWMEM_CAM_NUM_BOOL
905         default 3
906 
907 config DYNAMIC_MEMSTART
908         bool "Enable page aligned dynamic load address for kernel"
909         depends on ADVANCED_OPTIONS && FLATMEM && (FSL_BOOKE || 44x)
910         select NONSTATIC_KERNEL
911         help
912           This option enables the kernel to be loaded at any page aligned
913           physical address. The kernel creates a mapping from KERNELBASE to 
914           the address where the kernel is loaded. The page size here implies
915           the TLB page size of the mapping for kernel on the particular platform.
916           Please refer to the init code for finding the TLB page size.
917 
918           DYNAMIC_MEMSTART is an easy way of implementing pseudo-RELOCATABLE
919           kernel image, where the only restriction is the page aligned kernel
920           load address. When this option is enabled, the compile time physical 
921           address CONFIG_PHYSICAL_START is ignored.
922 
923           This option is overridden by CONFIG_RELOCATABLE
924 
925 config RELOCATABLE
926         bool "Build a relocatable kernel"
927         depends on ADVANCED_OPTIONS && FLATMEM && (44x || FSL_BOOKE)
928         select NONSTATIC_KERNEL
929         help
930           This builds a kernel image that is capable of running at the
931           location the kernel is loaded at, without any alignment restrictions.
932           This feature is a superset of DYNAMIC_MEMSTART and hence overrides it.
933 
934           One use is for the kexec on panic case where the recovery kernel
935           must live at a different physical address than the primary
936           kernel.
937 
938           Note: If CONFIG_RELOCATABLE=y, then the kernel runs from the address
939           it has been loaded at and the compile time physical addresses
940           CONFIG_PHYSICAL_START is ignored.  However CONFIG_PHYSICAL_START
941           setting can still be useful to bootwrappers that need to know the
942           load address of the kernel (eg. u-boot/mkimage).
943 
944 config RELOCATABLE_PPC32
945         def_bool y
946         depends on PPC32 && RELOCATABLE
947 
948 config PAGE_OFFSET_BOOL
949         bool "Set custom page offset address"
950         depends on ADVANCED_OPTIONS
951         help
952           This option allows you to set the kernel virtual address at which
953           the kernel will map low memory.  This can be useful in optimizing
954           the virtual memory layout of the system.
955 
956           Say N here unless you know what you are doing.
957 
958 config PAGE_OFFSET
959         hex "Virtual address of memory base" if PAGE_OFFSET_BOOL
960         default "0xc0000000"
961 
962 config KERNEL_START_BOOL
963         bool "Set custom kernel base address"
964         depends on ADVANCED_OPTIONS
965         help
966           This option allows you to set the kernel virtual address at which
967           the kernel will be loaded.  Normally this should match PAGE_OFFSET
968           however there are times (like kdump) that one might not want them
969           to be the same.
970 
971           Say N here unless you know what you are doing.
972 
973 config KERNEL_START
974         hex "Virtual address of kernel base" if KERNEL_START_BOOL
975         default PAGE_OFFSET if PAGE_OFFSET_BOOL
976         default "0xc2000000" if CRASH_DUMP && !NONSTATIC_KERNEL
977         default "0xc0000000"
978 
979 config PHYSICAL_START_BOOL
980         bool "Set physical address where the kernel is loaded"
981         depends on ADVANCED_OPTIONS && FLATMEM && FSL_BOOKE
982         help
983           This gives the physical address where the kernel is loaded.
984 
985           Say N here unless you know what you are doing.
986 
987 config PHYSICAL_START
988         hex "Physical address where the kernel is loaded" if PHYSICAL_START_BOOL
989         default "0x02000000" if PPC_STD_MMU && CRASH_DUMP && !NONSTATIC_KERNEL
990         default "0x00000000"
991 
992 config PHYSICAL_ALIGN
993         hex
994         default "0x04000000" if FSL_BOOKE
995         help
996           This value puts the alignment restrictions on physical address
997           where kernel is loaded and run from. Kernel is compiled for an
998           address which meets above alignment restriction.
999 
1000 config TASK_SIZE_BOOL
1001         bool "Set custom user task size"
1002         depends on ADVANCED_OPTIONS
1003         help
1004           This option allows you to set the amount of virtual address space
1005           allocated to user tasks.  This can be useful in optimizing the
1006           virtual memory layout of the system.
1007 
1008           Say N here unless you know what you are doing.
1009 
1010 config TASK_SIZE
1011         hex "Size of user task space" if TASK_SIZE_BOOL
1012         default "0x80000000" if PPC_8xx
1013         default "0xc0000000"
1014 
1015 config CONSISTENT_SIZE_BOOL
1016         bool "Set custom consistent memory pool size"
1017         depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
1018         help
1019           This option allows you to set the size of the
1020           consistent memory pool.  This pool of virtual memory
1021           is used to make consistent memory allocations.
1022 
1023 config CONSISTENT_SIZE
1024         hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL
1025         default "0x00200000" if NOT_COHERENT_CACHE
1026 
1027 config PIN_TLB
1028         bool "Pinned Kernel TLBs (860 ONLY)"
1029         depends on ADVANCED_OPTIONS && 8xx
1030 endmenu
1031 
1032 if PPC64
1033 config RELOCATABLE
1034         bool "Build a relocatable kernel"
1035         depends on !COMPILE_TEST
1036         select NONSTATIC_KERNEL
1037         help
1038           This builds a kernel image that is capable of running anywhere
1039           in the RMA (real memory area) at any 16k-aligned base address.
1040           The kernel is linked as a position-independent executable (PIE)
1041           and contains dynamic relocations which are processed early
1042           in the bootup process.
1043 
1044           One use is for the kexec on panic case where the recovery kernel
1045           must live at a different physical address than the primary
1046           kernel.
1047 
1048 # This value must have zeroes in the bottom 60 bits otherwise lots will break
1049 config PAGE_OFFSET
1050         hex
1051         default "0xc000000000000000"
1052 config KERNEL_START
1053         hex
1054         default "0xc000000000000000"
1055 config PHYSICAL_START
1056         hex
1057         default "0x00000000"
1058 endif
1059 
1060 config  ARCH_RANDOM
1061         def_bool n
1062 
1063 source "net/Kconfig"
1064 
1065 source "drivers/Kconfig"
1066 
1067 source "fs/Kconfig"
1068 
1069 source "arch/powerpc/sysdev/qe_lib/Kconfig"
1070 
1071 source "lib/Kconfig"
1072 
1073 source "arch/powerpc/Kconfig.debug"
1074 
1075 source "security/Kconfig"
1076 
1077 config KEYS_COMPAT
1078         bool
1079         depends on COMPAT && KEYS
1080         default y
1081 
1082 source "crypto/Kconfig"
1083 
1084 config PPC_LIB_RHEAP
1085         bool
1086 
1087 source "arch/powerpc/kvm/Kconfig"

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