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 GENERIC_GPIO
  86         bool
  87         help
  88           Generic GPIO API support
  89
  90 config ARCH_NO_VIRT_TO_BUS
  91         def_bool PPC64
  92
  93 config PPC
  94         bool
  95         default y
  96         select OF
  97         select OF_EARLY_FLATTREE
  98         select HAVE_FTRACE_MCOUNT_RECORD
  99         select HAVE_DYNAMIC_FTRACE
 100         select HAVE_FUNCTION_TRACER
 101         select HAVE_FUNCTION_GRAPH_TRACER
 102         select SYSCTL_EXCEPTION_TRACE
 103         select ARCH_WANT_OPTIONAL_GPIOLIB
 104         select HAVE_IDE
 105         select HAVE_IOREMAP_PROT
 106         select HAVE_EFFICIENT_UNALIGNED_ACCESS
 107         select HAVE_KPROBES
 108         select HAVE_ARCH_KGDB
 109         select HAVE_KRETPROBES
 110         select HAVE_ARCH_TRACEHOOK
 111         select HAVE_MEMBLOCK
 112         select HAVE_MEMBLOCK_NODE_MAP
 113         select HAVE_DMA_ATTRS
 114         select HAVE_DMA_API_DEBUG
 115         select USE_GENERIC_SMP_HELPERS if SMP
 116         select HAVE_OPROFILE
 117         select HAVE_DEBUG_KMEMLEAK
 118         select HAVE_SYSCALL_WRAPPERS if PPC64
 119         select GENERIC_ATOMIC64 if PPC32
 120         select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
 121         select HAVE_PERF_EVENTS
 122         select HAVE_REGS_AND_STACK_ACCESS_API
 123         select HAVE_HW_BREAKPOINT if PERF_EVENTS && PPC_BOOK3S_64
 124         select HAVE_GENERIC_HARDIRQS
 125         select ARCH_WANT_IPC_PARSE_VERSION
 126         select SPARSE_IRQ
 127         select IRQ_DOMAIN
 128         select GENERIC_IRQ_SHOW
 129         select GENERIC_IRQ_SHOW_LEVEL
 130         select IRQ_FORCED_THREADING
 131         select HAVE_RCU_TABLE_FREE if SMP
 132         select HAVE_SYSCALL_TRACEPOINTS
 133         select HAVE_BPF_JIT if PPC64
 134         select HAVE_ARCH_JUMP_LABEL
 135         select ARCH_HAVE_NMI_SAFE_CMPXCHG
 136         select GENERIC_SMP_IDLE_THREAD
 137         select GENERIC_CMOS_UPDATE
 138         select GENERIC_TIME_VSYSCALL_OLD
 139         select GENERIC_CLOCKEVENTS
 140         select GENERIC_STRNCPY_FROM_USER
 141         select GENERIC_STRNLEN_USER
 142         select HAVE_MOD_ARCH_SPECIFIC
 143         select MODULES_USE_ELF_RELA
 144         select CLONE_BACKWARDS
 145         select ARCH_USE_BUILTIN_BSWAP
 146         select OLD_SIGSUSPEND
 147         select OLD_SIGACTION if PPC32
 148
 149 config EARLY_PRINTK
 150         bool
 151         default y
 152
 153 config COMPAT
 154         bool
 155         default y if PPC64
 156         select COMPAT_BINFMT_ELF
 157         select ARCH_WANT_OLD_COMPAT_IPC
 158         select COMPAT_OLD_SIGACTION
 159
 160 config SYSVIPC_COMPAT
 161         bool
 162         depends on COMPAT && SYSVIPC
 163         default y
 164
 165 # All PPC32s use generic nvram driver through ppc_md
 166 config GENERIC_NVRAM
 167         bool
 168         default y if PPC32
 169
 170 config SCHED_OMIT_FRAME_POINTER
 171         bool
 172         default y
 173
 174 config ARCH_MAY_HAVE_PC_FDC
 175         bool
 176         default !PPC_PSERIES || PCI
 177
 178 config PPC_OF
 179         def_bool y
 180
 181 config PPC_UDBG_16550
 182         bool
 183         default n
 184
 185 config GENERIC_TBSYNC
 186         bool
 187         default y if PPC32 && SMP
 188         default n
 189
 190 config AUDIT_ARCH
 191         bool
 192         default y
 193
 194 config GENERIC_BUG
 195         bool
 196         default y
 197         depends on BUG
 198
 199 config SYS_SUPPORTS_APM_EMULATION
 200         default y if PMAC_APM_EMU
 201         bool
 202
 203 config EPAPR_BOOT
 204         bool
 205         help
 206           Used to allow a board to specify it wants an ePAPR compliant wrapper.
 207         default n
 208
 209 config DEFAULT_UIMAGE
 210         bool
 211         help
 212           Used to allow a board to specify it wants a uImage built by default
 213         default n
 214
 215 config REDBOOT
 216         bool
 217
 218 config ARCH_HIBERNATION_POSSIBLE
 219         bool
 220         default y
 221
 222 config ARCH_SUSPEND_POSSIBLE
 223         def_bool y
 224         depends on ADB_PMU || PPC_EFIKA || PPC_LITE5200 || PPC_83xx || \
 225                    (PPC_85xx && !PPC_E500MC) || PPC_86xx || PPC_PSERIES \
 226                    || 44x || 40x
 227
 228 config PPC_DCR_NATIVE
 229         bool
 230         default n
 231
 232 config PPC_DCR_MMIO
 233         bool
 234         default n
 235
 236 config PPC_DCR
 237         bool
 238         depends on PPC_DCR_NATIVE || PPC_DCR_MMIO
 239         default y
 240
 241 config PPC_OF_PLATFORM_PCI
 242         bool
 243         depends on PCI
 244         depends on PPC64 # not supported on 32 bits yet
 245         default n
 246
 247 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
 248         def_bool y
 249
 250 config ARCH_SUPPORTS_UPROBES
 251         def_bool y
 252
 253 config PPC_ADV_DEBUG_REGS
 254         bool
 255         depends on 40x || BOOKE
 256         default y
 257
 258 config PPC_ADV_DEBUG_IACS
 259         int
 260         depends on PPC_ADV_DEBUG_REGS
 261         default 4 if 44x
 262         default 2
 263
 264 config PPC_ADV_DEBUG_DACS
 265         int
 266         depends on PPC_ADV_DEBUG_REGS
 267         default 2
 268
 269 config PPC_ADV_DEBUG_DVCS
 270         int
 271         depends on PPC_ADV_DEBUG_REGS
 272         default 2 if 44x
 273         default 0
 274
 275 config PPC_ADV_DEBUG_DAC_RANGE
 276         bool
 277         depends on PPC_ADV_DEBUG_REGS && 44x
 278         default y
 279
 280 config PPC_EMULATE_SSTEP
 281         bool
 282         default y if KPROBES || UPROBES || XMON || HAVE_HW_BREAKPOINT
 283
 284 source "init/Kconfig"
 285
 286 source "kernel/Kconfig.freezer"
 287
 288 source "arch/powerpc/sysdev/Kconfig"
 289 source "arch/powerpc/platforms/Kconfig"
 290
 291 menu "Kernel options"
 292
 293 config HIGHMEM
 294         bool "High memory support"
 295         depends on PPC32
 296
 297 source kernel/Kconfig.hz
 298 source kernel/Kconfig.preempt
 299 source "fs/Kconfig.binfmt"
 300
 301 config HUGETLB_PAGE_SIZE_VARIABLE
 302         bool
 303         depends on HUGETLB_PAGE
 304         default y
 305
 306 config MATH_EMULATION
 307         bool "Math emulation"
 308         depends on 4xx || 8xx || E200 || PPC_MPC832x || E500
 309         ---help---
 310           Some PowerPC chips designed for embedded applications do not have
 311           a floating-point unit and therefore do not implement the
 312           floating-point instructions in the PowerPC instruction set.  If you
 313           say Y here, the kernel will include code to emulate a floating-point
 314           unit, which will allow programs that use floating-point
 315           instructions to run.
 316
 317 config PPC_TRANSACTIONAL_MEM
 318        bool "Transactional Memory support for POWERPC"
 319        depends on PPC_BOOK3S_64
 320        depends on SMP
 321        default n
 322        ---help---
 323          Support user-mode Transactional Memory on POWERPC.
 324
 325 config 8XX_MINIMAL_FPEMU
 326         bool "Minimal math emulation for 8xx"
 327         depends on 8xx && !MATH_EMULATION
 328         help
 329           Older arch/ppc kernels still emulated a few floating point
 330           instructions such as load and store, even when full math
 331           emulation is disabled.  Say "Y" here if you want to preserve
 332           this behavior.
 333
 334           It is recommended that you build a soft-float userspace instead.
 335
 336 config IOMMU_HELPER
 337         def_bool PPC64
 338
 339 config SWIOTLB
 340         bool "SWIOTLB support"
 341         default n
 342         select IOMMU_HELPER
 343         ---help---
 344           Support for IO bounce buffering for systems without an IOMMU.
 345           This allows us to DMA to the full physical address space on
 346           platforms where the size of a physical address is larger
 347           than the bus address.  Not all platforms support this.
 348
 349 config HOTPLUG_CPU
 350         bool "Support for enabling/disabling CPUs"
 351         depends on SMP && HOTPLUG && (PPC_PSERIES || \
 352         PPC_PMAC || PPC_POWERNV || (PPC_85xx && !PPC_E500MC))
 353         ---help---
 354           Say Y here to be able to disable and re-enable individual
 355           CPUs at runtime on SMP machines.
 356
 357           Say N if you are unsure.
 358
 359 config ARCH_CPU_PROBE_RELEASE
 360         def_bool y
 361         depends on HOTPLUG_CPU
 362
 363 config ARCH_ENABLE_MEMORY_HOTPLUG
 364         def_bool y
 365
 366 config ARCH_HAS_WALK_MEMORY
 367         def_bool y
 368
 369 config ARCH_ENABLE_MEMORY_HOTREMOVE
 370         def_bool y
 371
 372 config KEXEC
 373         bool "kexec system call"
 374         depends on (PPC_BOOK3S || FSL_BOOKE || (44x && !SMP))
 375         help
 376           kexec is a system call that implements the ability to shutdown your
 377           current kernel, and to start another kernel.  It is like a reboot
 378           but it is independent of the system firmware.   And like a reboot
 379           you can start any kernel with it, not just Linux.
 380
 381           The name comes from the similarity to the exec system call.
 382
 383           It is an ongoing process to be certain the hardware in a machine
 384           is properly shutdown, so do not be surprised if this code does not
 385           initially work for you.  It may help to enable device hotplugging
 386           support.  As of this writing the exact hardware interface is
 387           strongly in flux, so no good recommendation can be made.
 388
 389 config CRASH_DUMP
 390         bool "Build a kdump crash kernel"
 391         depends on PPC64 || 6xx || FSL_BOOKE || (44x && !SMP)
 392         select RELOCATABLE if PPC64 || 44x
 393         select DYNAMIC_MEMSTART if FSL_BOOKE
 394         help
 395           Build a kernel suitable for use as a kdump capture kernel.
 396           The same kernel binary can be used as production kernel and dump
 397           capture kernel.
 398
 399 config FA_DUMP
 400         bool "Firmware-assisted dump"
 401         depends on PPC64 && PPC_RTAS && CRASH_DUMP
 402         help
 403           A robust mechanism to get reliable kernel crash dump with
 404           assistance from firmware. This approach does not use kexec,
 405           instead firmware assists in booting the kdump kernel
 406           while preserving memory contents. Firmware-assisted dump
 407           is meant to be a kdump replacement offering robustness and
 408           speed not possible without system firmware assistance.
 409
 410           If unsure, say "N"
 411
 412 config IRQ_ALL_CPUS
 413         bool "Distribute interrupts on all CPUs by default"
 414         depends on SMP && !MV64360
 415         help
 416           This option gives the kernel permission to distribute IRQs across
 417           multiple CPUs.  Saying N here will route all IRQs to the first
 418           CPU.  Generally saying Y is safe, although some problems have been
 419           reported with SMP Power Macintoshes with this option enabled.
 420
 421 config NUMA
 422         bool "NUMA support"
 423         depends on PPC64
 424         default y if SMP && PPC_PSERIES
 425
 426 config NODES_SHIFT
 427         int
 428         default "8" if PPC64
 429         default "4"
 430         depends on NEED_MULTIPLE_NODES
 431
 432 config MAX_ACTIVE_REGIONS
 433         int
 434         default "256" if PPC64
 435         default "32"
 436
 437 config ARCH_SELECT_MEMORY_MODEL
 438         def_bool y
 439         depends on PPC64
 440
 441 config ARCH_FLATMEM_ENABLE
 442         def_bool y
 443         depends on (PPC64 && !NUMA) || PPC32
 444
 445 config ARCH_SPARSEMEM_ENABLE
 446         def_bool y
 447         depends on PPC64
 448         select SPARSEMEM_VMEMMAP_ENABLE
 449
 450 config ARCH_SPARSEMEM_DEFAULT
 451         def_bool y
 452         depends on (SMP && PPC_PSERIES) || PPC_PS3
 453
 454 config SYS_SUPPORTS_HUGETLBFS
 455         bool
 456
 457 source "mm/Kconfig"
 458
 459 config ARCH_MEMORY_PROBE
 460         def_bool y
 461         depends on MEMORY_HOTPLUG
 462
 463 # Some NUMA nodes have memory ranges that span
 464 # other nodes.  Even though a pfn is valid and
 465 # between a node's start and end pfns, it may not
 466 # reside on that node.  See memmap_init_zone()
 467 # for details.
 468 config NODES_SPAN_OTHER_NODES
 469         def_bool y
 470         depends on NEED_MULTIPLE_NODES
 471
 472 config PPC_HAS_HASH_64K
 473         bool
 474         depends on PPC64
 475         default n
 476
 477 config STDBINUTILS
 478         bool "Using standard binutils settings"
 479         depends on 44x
 480         default y
 481         help
 482           Turning this option off allows you to select 256KB PAGE_SIZE on 44x.
 483           Note, that kernel will be able to run only those applications,
 484           which had been compiled using binutils later than 2.17.50.0.3 with
 485           '-zmax-page-size' set to 256K (the default is 64K). Or, if using
 486           the older binutils, you can patch them with a trivial patch, which
 487           changes the ELF_MAXPAGESIZE definition from 0x10000 to 0x40000.
 488
 489 choice
 490         prompt "Page size"
 491         default PPC_4K_PAGES
 492         help
 493           Select the kernel logical page size. Increasing the page size
 494           will reduce software overhead at each page boundary, allow
 495           hardware prefetch mechanisms to be more effective, and allow
 496           larger dma transfers increasing IO efficiency and reducing
 497           overhead. However the utilization of memory will increase.
 498           For example, each cached file will using a multiple of the
 499           page size to hold its contents and the difference between the
 500           end of file and the end of page is wasted.
 501
 502           Some dedicated systems, such as software raid serving with
 503           accelerated calculations, have shown significant increases.
 504
 505           If you configure a 64 bit kernel for 64k pages but the
 506           processor does not support them, then the kernel will simulate
 507           them with 4k pages, loading them on demand, but with the
 508           reduced software overhead and larger internal fragmentation.
 509           For the 32 bit kernel, a large page option will not be offered
 510           unless it is supported by the configured processor.
 511
 512           If unsure, choose 4K_PAGES.
 513
 514 config PPC_4K_PAGES
 515         bool "4k page size"
 516
 517 config PPC_16K_PAGES
 518         bool "16k page size" if 44x
 519
 520 config PPC_64K_PAGES
 521         bool "64k page size" if 44x || PPC_STD_MMU_64 || PPC_BOOK3E_64
 522         select PPC_HAS_HASH_64K if PPC_STD_MMU_64
 523
 524 config PPC_256K_PAGES
 525         bool "256k page size" if 44x
 526         depends on !STDBINUTILS
 527         help
 528           Make the page size 256k.
 529
 530           As the ELF standard only requires alignment to support page
 531           sizes up to 64k, you will need to compile all of your user
 532           space applications with a non-standard binutils settings
 533           (see the STDBINUTILS description for details).
 534
 535           Say N unless you know what you are doing.
 536
 537 endchoice
 538
 539 config FORCE_MAX_ZONEORDER
 540         int "Maximum zone order"
 541         range 9 64 if PPC64 && PPC_64K_PAGES
 542         default "9" if PPC64 && PPC_64K_PAGES
 543         range 13 64 if PPC64 && !PPC_64K_PAGES
 544         default "13" if PPC64 && !PPC_64K_PAGES
 545         range 9 64 if PPC32 && PPC_16K_PAGES
 546         default "9" if PPC32 && PPC_16K_PAGES
 547         range 7 64 if PPC32 && PPC_64K_PAGES
 548         default "7" if PPC32 && PPC_64K_PAGES
 549         range 5 64 if PPC32 && PPC_256K_PAGES
 550         default "5" if PPC32 && PPC_256K_PAGES
 551         range 11 64
 552         default "11"
 553         help
 554           The kernel memory allocator divides physically contiguous memory
 555           blocks into "zones", where each zone is a power of two number of
 556           pages.  This option selects the largest power of two that the kernel
 557           keeps in the memory allocator.  If you need to allocate very large
 558           blocks of physically contiguous memory, then you may need to
 559           increase this value.
 560
 561           This config option is actually maximum order plus one. For example,
 562           a value of 11 means that the largest free memory block is 2^10 pages.
 563
 564           The page size is not necessarily 4KB.  For example, on 64-bit
 565           systems, 64KB pages can be enabled via CONFIG_PPC_64K_PAGES.  Keep
 566           this in mind when choosing a value for this option.
 567
 568 config PPC_SUBPAGE_PROT
 569         bool "Support setting protections for 4k subpages"
 570         depends on PPC_STD_MMU_64 && PPC_64K_PAGES
 571         help
 572           This option adds support for a system call to allow user programs
 573           to set access permissions (read/write, readonly, or no access)
 574           on the 4k subpages of each 64k page.
 575
 576 config SCHED_SMT
 577         bool "SMT (Hyperthreading) scheduler support"
 578         depends on PPC64 && SMP
 579         help
 580           SMT scheduler support improves the CPU scheduler's decision making
 581           when dealing with POWER5 cpus at a cost of slightly increased
 582           overhead in some places. If unsure say N here.
 583
 584 config PPC_DENORMALISATION
 585         bool "PowerPC denormalisation exception handling"
 586         depends on PPC_BOOK3S_64
 587         default "n"
 588         ---help---
 589           Add support for handling denormalisation of single precision
 590           values.  Useful for bare metal only.  If unsure say Y here.
 591
 592 config CMDLINE_BOOL
 593         bool "Default bootloader kernel arguments"
 594
 595 config CMDLINE
 596         string "Initial kernel command string"
 597         depends on CMDLINE_BOOL
 598         default "console=ttyS0,9600 console=tty0 root=/dev/sda2"
 599         help
 600           On some platforms, there is currently no way for the boot loader to
 601           pass arguments to the kernel. For these platforms, you can supply
 602           some command-line options at build time by entering them here.  In
 603           most cases you will need to specify the root device here.
 604
 605 config EXTRA_TARGETS
 606         string "Additional default image types"
 607         help
 608           List additional targets to be built by the bootwrapper here (separated
 609           by spaces).  This is useful for targets that depend of device tree
 610           files in the .dts directory.
 611
 612           Targets in this list will be build as part of the default build
 613           target, or when the user does a 'make zImage' or a
 614           'make zImage.initrd'.
 615
 616           If unsure, leave blank
 617
 618 config ARCH_WANTS_FREEZER_CONTROL
 619         def_bool y
 620         depends on ADB_PMU
 621
 622 source kernel/power/Kconfig
 623
 624 config SECCOMP
 625         bool "Enable seccomp to safely compute untrusted bytecode"
 626         depends on PROC_FS
 627         default y
 628         help
 629           This kernel feature is useful for number crunching applications
 630           that may need to compute untrusted bytecode during their
 631           execution. By using pipes or other transports made available to
 632           the process as file descriptors supporting the read/write
 633           syscalls, it's possible to isolate those applications in
 634           their own address space using seccomp. Once seccomp is
 635           enabled via /proc/<pid>/seccomp, it cannot be disabled
 636           and the task is only allowed to execute a few safe syscalls
 637           defined by each seccomp mode.
 638
 639           If unsure, say Y. Only embedded should say N here.
 640
 641 endmenu
 642
 643 config ISA_DMA_API
 644         bool
 645         default PCI
 646
 647 menu "Bus options"
 648
 649 config ISA
 650         bool "Support for ISA-bus hardware"
 651         depends on PPC_PREP || PPC_CHRP
 652         select PPC_I8259
 653         help
 654           Find out whether you have ISA slots on your motherboard.  ISA is the
 655           name of a bus system, i.e. the way the CPU talks to the other stuff
 656           inside your box.  If you have an Apple machine, say N here; if you
 657           have an IBM RS/6000 or pSeries machine or a PReP machine, say Y.  If
 658           you have an embedded board, consult your board documentation.
 659
 660 config ZONE_DMA
 661         bool
 662         default y
 663
 664 config NEED_DMA_MAP_STATE
 665         def_bool (PPC64 || NOT_COHERENT_CACHE)
 666
 667 config NEED_SG_DMA_LENGTH
 668         def_bool y
 669
 670 config GENERIC_ISA_DMA
 671         bool
 672         depends on ISA_DMA_API
 673         default y
 674
 675 config PPC_INDIRECT_PCI
 676         bool
 677         depends on PCI
 678         default y if 40x || 44x
 679         default n
 680
 681 config EISA
 682         bool
 683
 684 config SBUS
 685         bool
 686
 687 config FSL_SOC
 688         bool
 689         select HAVE_CAN_FLEXCAN if NET && CAN
 690         select PPC_CLOCK
 691
 692 config FSL_PCI
 693         bool
 694         select PPC_INDIRECT_PCI
 695         select PCI_QUIRKS
 696
 697 config FSL_PMC
 698         bool
 699         default y
 700         depends on SUSPEND && (PPC_85xx || PPC_86xx)
 701         help
 702           Freescale MPC85xx/MPC86xx power management controller support
 703           (suspend/resume). For MPC83xx see platforms/83xx/suspend.c
 704
 705 config PPC4xx_CPM
 706         bool
 707         default y
 708         depends on SUSPEND && (44x || 40x)
 709         help
 710           PPC4xx Clock Power Management (CPM) support (suspend/resume).
 711           It also enables support for two different idle states (idle-wait
 712           and idle-doze).
 713
 714 config 4xx_SOC
 715         bool
 716
 717 config FSL_LBC
 718         bool "Freescale Local Bus support"
 719         depends on FSL_SOC
 720         help
 721           Enables reporting of errors from the Freescale local bus
 722           controller.  Also contains some common code used by
 723           drivers for specific local bus peripherals.
 724
 725 config FSL_IFC
 726         bool
 727         depends on FSL_SOC
 728
 729 config FSL_GTM
 730         bool
 731         depends on PPC_83xx || QUICC_ENGINE || CPM2
 732         help
 733           Freescale General-purpose Timers support
 734
 735 # Yes MCA RS/6000s exist but Linux-PPC does not currently support any
 736 config MCA
 737         bool
 738
 739 # Platforms that what PCI turned unconditionally just do select PCI
 740 # in their config node.  Platforms that want to choose at config
 741 # time should select PPC_PCI_CHOICE
 742 config PPC_PCI_CHOICE
 743         bool
 744
 745 config PCI
 746         bool "PCI support" if PPC_PCI_CHOICE
 747         default y if !40x && !CPM2 && !8xx && !PPC_83xx \
 748                 && !PPC_85xx && !PPC_86xx && !GAMECUBE_COMMON
 749         default PCI_PERMEDIA if !4xx && !CPM2 && !8xx
 750         default PCI_QSPAN if !4xx && !CPM2 && 8xx
 751         select ARCH_SUPPORTS_MSI
 752         select GENERIC_PCI_IOMAP
 753         help
 754           Find out whether your system includes a PCI bus. PCI is the name of
 755           a bus system, i.e. the way the CPU talks to the other stuff inside
 756           your box.  If you say Y here, the kernel will include drivers and
 757           infrastructure code to support PCI bus devices.
 758
 759 config PCI_DOMAINS
 760         def_bool PCI
 761
 762 config PCI_SYSCALL
 763         def_bool PCI
 764
 765 config PCI_QSPAN
 766         bool "QSpan PCI"
 767         depends on !4xx && !CPM2 && 8xx
 768         select PPC_I8259
 769         help
 770           Say Y here if you have a system based on a Motorola 8xx-series
 771           embedded processor with a QSPAN PCI interface, otherwise say N.
 772
 773 config PCI_8260
 774         bool
 775         depends on PCI && 8260
 776         select PPC_INDIRECT_PCI
 777         default y
 778
 779 config 8260_PCI9
 780         bool "Enable workaround for MPC826x erratum PCI 9"
 781         depends on PCI_8260 && !8272
 782         default y
 783
 784 source "drivers/pci/pcie/Kconfig"
 785
 786 source "drivers/pci/Kconfig"
 787
 788 source "drivers/pcmcia/Kconfig"
 789
 790 source "drivers/pci/hotplug/Kconfig"
 791
 792 config HAS_RAPIDIO
 793         bool
 794         default n
 795
 796 config RAPIDIO
 797         bool "RapidIO support"
 798         depends on HAS_RAPIDIO || PCI
 799         help
 800           If you say Y here, the kernel will include drivers and
 801           infrastructure code to support RapidIO interconnect devices.
 802
 803 config FSL_RIO
 804         bool "Freescale Embedded SRIO Controller support"
 805         depends on RAPIDIO && HAS_RAPIDIO
 806         default "n"
 807         ---help---
 808           Include support for RapidIO controller on Freescale embedded
 809           processors (MPC8548, MPC8641, etc).
 810
 811 source "drivers/rapidio/Kconfig"
 812
 813 endmenu
 814
 815 config NONSTATIC_KERNEL
 816         bool
 817         default n
 818
 819 menu "Advanced setup"
 820         depends on PPC32
 821
 822 config ADVANCED_OPTIONS
 823         bool "Prompt for advanced kernel configuration options"
 824         help
 825           This option will enable prompting for a variety of advanced kernel
 826           configuration options.  These options can cause the kernel to not
 827           work if they are set incorrectly, but can be used to optimize certain
 828           aspects of kernel memory management.
 829
 830           Unless you know what you are doing, say N here.
 831
 832 comment "Default settings for advanced configuration options are used"
 833         depends on !ADVANCED_OPTIONS
 834
 835 config LOWMEM_SIZE_BOOL
 836         bool "Set maximum low memory"
 837         depends on ADVANCED_OPTIONS
 838         help
 839           This option allows you to set the maximum amount of memory which
 840           will be used as "low memory", that is, memory which the kernel can
 841           access directly, without having to set up a kernel virtual mapping.
 842           This can be useful in optimizing the layout of kernel virtual
 843           memory.
 844
 845           Say N here unless you know what you are doing.
 846
 847 config LOWMEM_SIZE
 848         hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
 849         default "0x30000000"
 850
 851 config LOWMEM_CAM_NUM_BOOL
 852         bool "Set number of CAMs to use to map low memory"
 853         depends on ADVANCED_OPTIONS && FSL_BOOKE
 854         help
 855           This option allows you to set the maximum number of CAM slots that
 856           will be used to map low memory.  There are a limited number of slots
 857           available and even more limited number that will fit in the L1 MMU.
 858           However, using more entries will allow mapping more low memory.  This
 859           can be useful in optimizing the layout of kernel virtual memory.
 860
 861           Say N here unless you know what you are doing.
 862
 863 config LOWMEM_CAM_NUM
 864         depends on FSL_BOOKE
 865         int "Number of CAMs to use to map low memory" if LOWMEM_CAM_NUM_BOOL
 866         default 3
 867
 868 config DYNAMIC_MEMSTART
 869         bool "Enable page aligned dynamic load address for kernel"
 870         depends on ADVANCED_OPTIONS && FLATMEM && (FSL_BOOKE || 44x)
 871         select NONSTATIC_KERNEL
 872         help
 873           This option enables the kernel to be loaded at any page aligned
 874           physical address. The kernel creates a mapping from KERNELBASE to
 875           the address where the kernel is loaded. The page size here implies
 876           the TLB page size of the mapping for kernel on the particular platform.
 877           Please refer to the init code for finding the TLB page size.
 878
 879           DYNAMIC_MEMSTART is an easy way of implementing pseudo-RELOCATABLE
 880           kernel image, where the only restriction is the page aligned kernel
 881           load address. When this option is enabled, the compile time physical
 882           address CONFIG_PHYSICAL_START is ignored.
 883
 884           This option is overridden by CONFIG_RELOCATABLE
 885
 886 config RELOCATABLE
 887         bool "Build a relocatable kernel"
 888         depends on ADVANCED_OPTIONS && FLATMEM && 44x
 889         select NONSTATIC_KERNEL
 890         help
 891           This builds a kernel image that is capable of running at the
 892           location the kernel is loaded at, without any alignment restrictions.
 893           This feature is a superset of DYNAMIC_MEMSTART and hence overrides it.
 894
 895           One use is for the kexec on panic case where the recovery kernel
 896           must live at a different physical address than the primary
 897           kernel.
 898
 899           Note: If CONFIG_RELOCATABLE=y, then the kernel runs from the address
 900           it has been loaded at and the compile time physical addresses
 901           CONFIG_PHYSICAL_START is ignored.  However CONFIG_PHYSICAL_START
 902           setting can still be useful to bootwrappers that need to know the
 903           load address of the kernel (eg. u-boot/mkimage).
 904
 905 config RELOCATABLE_PPC32
 906         def_bool y
 907         depends on PPC32 && RELOCATABLE
 908
 909 config PAGE_OFFSET_BOOL
 910         bool "Set custom page offset address"
 911         depends on ADVANCED_OPTIONS
 912         help
 913           This option allows you to set the kernel virtual address at which
 914           the kernel will map low memory.  This can be useful in optimizing
 915           the virtual memory layout of the system.
 916
 917           Say N here unless you know what you are doing.
 918
 919 config PAGE_OFFSET
 920         hex "Virtual address of memory base" if PAGE_OFFSET_BOOL
 921         default "0xc0000000"
 922
 923 config KERNEL_START_BOOL
 924         bool "Set custom kernel base address"
 925         depends on ADVANCED_OPTIONS
 926         help
 927           This option allows you to set the kernel virtual address at which
 928           the kernel will be loaded.  Normally this should match PAGE_OFFSET
 929           however there are times (like kdump) that one might not want them
 930           to be the same.
 931
 932           Say N here unless you know what you are doing.
 933
 934 config KERNEL_START
 935         hex "Virtual address of kernel base" if KERNEL_START_BOOL
 936         default PAGE_OFFSET if PAGE_OFFSET_BOOL
 937         default "0xc2000000" if CRASH_DUMP && !NONSTATIC_KERNEL
 938         default "0xc0000000"
 939
 940 config PHYSICAL_START_BOOL
 941         bool "Set physical address where the kernel is loaded"
 942         depends on ADVANCED_OPTIONS && FLATMEM && FSL_BOOKE
 943         help
 944           This gives the physical address where the kernel is loaded.
 945
 946           Say N here unless you know what you are doing.
 947
 948 config PHYSICAL_START
 949         hex "Physical address where the kernel is loaded" if PHYSICAL_START_BOOL
 950         default "0x02000000" if PPC_STD_MMU && CRASH_DUMP && !NONSTATIC_KERNEL
 951         default "0x00000000"
 952
 953 config PHYSICAL_ALIGN
 954         hex
 955         default "0x04000000" if FSL_BOOKE
 956         help
 957           This value puts the alignment restrictions on physical address
 958           where kernel is loaded and run from. Kernel is compiled for an
 959           address which meets above alignment restriction.
 960
 961 config TASK_SIZE_BOOL
 962         bool "Set custom user task size"
 963         depends on ADVANCED_OPTIONS
 964         help
 965           This option allows you to set the amount of virtual address space
 966           allocated to user tasks.  This can be useful in optimizing the
 967           virtual memory layout of the system.
 968
 969           Say N here unless you know what you are doing.
 970
 971 config TASK_SIZE
 972         hex "Size of user task space" if TASK_SIZE_BOOL
 973         default "0x80000000" if PPC_PREP || PPC_8xx
 974         default "0xc0000000"
 975
 976 config CONSISTENT_SIZE_BOOL
 977         bool "Set custom consistent memory pool size"
 978         depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
 979         help
 980           This option allows you to set the size of the
 981           consistent memory pool.  This pool of virtual memory
 982           is used to make consistent memory allocations.
 983
 984 config CONSISTENT_SIZE
 985         hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL
 986         default "0x00200000" if NOT_COHERENT_CACHE
 987
 988 config PIN_TLB
 989         bool "Pinned Kernel TLBs (860 ONLY)"
 990         depends on ADVANCED_OPTIONS && 8xx
 991 endmenu
 992
 993 if PPC64
 994 config RELOCATABLE
 995         bool "Build a relocatable kernel"
 996         select NONSTATIC_KERNEL
 997         help
 998           This builds a kernel image that is capable of running anywhere
 999           in the RMA (real memory area) at any 16k-aligned base address.
1000           The kernel is linked as a position-independent executable (PIE)
1001           and contains dynamic relocations which are processed early
1002           in the bootup process.
1003
1004           One use is for the kexec on panic case where the recovery kernel
1005           must live at a different physical address than the primary
1006           kernel.
1007
1008 config PAGE_OFFSET
1009         hex
1010         default "0xc000000000000000"
1011 config KERNEL_START
1012         hex
1013         default "0xc000000000000000"
1014 config PHYSICAL_START
1015         hex
1016         default "0x00000000"
1017 endif
1018
1019 source "net/Kconfig"
1020
1021 source "drivers/Kconfig"
1022
1023 source "fs/Kconfig"
1024
1025 source "arch/powerpc/sysdev/qe_lib/Kconfig"
1026
1027 source "lib/Kconfig"
1028
1029 source "arch/powerpc/Kconfig.debug"
1030
1031 source "security/Kconfig"
1032
1033 config KEYS_COMPAT
1034         bool
1035         depends on COMPAT && KEYS
1036         default y
1037
1038 source "crypto/Kconfig"
1039
1040 config PPC_CLOCK
1041         bool
1042         default n
1043         select HAVE_CLK
1044
1045 config PPC_LIB_RHEAP
1046         bool
1047
1048 source "arch/powerpc/kvm/Kconfig"